RU2404350C2 - Device for selective diverting for system of closure louvers in architectural openings - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: mechanism of diverting device to divert closures of architectural openings comprises a diverting shaft, having the first axis of rotation; master transmission element installed with the possibility of rotation in the first and second directions with diverting shaft; the first and second slave drums rotted by master transmission element; and first and second diverting cords. The first diverting cord is connected to the first slave drum. The second diverting cord is connected to the second slave drum so that specified first and second diverting cords are lifted and lowered as according slave drums rotate. Mechanism is arranged with a facility to stop rotation of the first drum as the second drum is rotated, and a facility to stop rotation of the second drum as the first drum is rotated.

EFFECT: development of device for selective opening of louver sections and privacy of premises.

25 cl, 49 dwg

Description

The present invention relates essentially to systems for covering architectural openings and, more particularly, to horizontal blinds, such as lifting blinds, configured to selectively deflect to the open position or deflect to the closed position of portions of the blinds, or deviate to the open position in increments, two times the standard step, while having the appearance of ordinary blinds when they are deflected to the closed position, either with the top raised or with the edge down from the side of the room.

Usually, lifting louvres have an upper jumper or other part of the frame, which carries the blinds and hides the mechanisms used to raise and lower the blinds, or to open and close the blinds. Raising and lowering is carried out with the help of a lifting cord attached to the lower jumper or lower bar. The strips carried by the upper jumper may be able to deviate so as to open the blinds so that light can pass through the blinds as much as possible or to close the blinds with the edge lowered down from the side of the room (the edges of the strips closest to the room are directed downwards, which means that others the edges of the strips closest to the window are facing up), or to close the blinds with the edge raised up from the side of the room.

The blinds can be turned into a closed position in order to block the light or to obtain confidentiality, or both. For optimum performance from the blinds, it may be necessary to open one section of the blinds when closing another section. For example, it may be necessary in office add-ons to lower the lower portion of the blinds into a closed position to protect the computer screen from being dazzled by sunlight, or to ensure privacy so that anyone standing outside the window cannot look out the window and see what is happening indoors . However, at the same time, it may be necessary for the upper portion of the blinds to deviate into the open position to allow natural light and / or ventilation of the room. Another example of the practical application of such "split" blinds can be a house in which the floor is at a mark higher than the surface of the earth outside. A person standing in the house can freely look outside, but a person outside cannot look inward, except through the uppermost sections, the possibility of which is provided by the open section of the blinds.

In addition, the issue of confidentiality or elimination of dazzle, a sign of controlling the light of the design of split shutters (also related to the design with selective deviation) is also advantageous in that it minimizes damage by ultraviolet light as a result of the influence of sunlight on the interior, carpets, flooring from solid wood, etc., while maintaining indirect lighting from the outside, as well as a clear view from the inside. This is especially practical and practically applicable in buildings with a roof overhanging the area of the window, or when the windows are recessed into the wall, creating an overhang.

In some examples, it is necessary to “turn the blinds open” as much as possible in order to maximize the possibility of light passing through the blinds or to provide the maximum area of unobstructed viewing. In this example, this can be achieved using standard width slats when adjacent pairs of slats move together to stack on top of each other when they are tilted to the open position, resulting in a “double step” device. In this double-pitch device, the open area between adjacent pairs of planks is essentially twice as large as that obtained if the planks are spaced apart from each other uniformly in a conventional device, which means “double pitch”.

In other examples, it is necessary to deflect the bar to the closed position in one direction (for example, the edge from the side of the room up), while the bars directly adjacent to this bar, close in the other direction (the edge from the side of the room down). The result is an aesthetically pleasing "pleated look" (also sometimes related to the Tiffany look) of the blinds when they are closed.

In one embodiment of the invention, the louvre system allows the user to reject the blinds fully open or to turn the blinds closed, as well as selectively reject one section of the blinds to the open position while the other section of the blinds deviates to the closed position.

In another embodiment of the invention, the blinds system allows the user to deflect the slats to the closed position, as in conventional blinds (either the edge from the side of the room up, or the edge from the side of the room down), but deflect to the open position with doubling the standard step.

In another embodiment of the invention, the blinds system allows the user to deflect the slats to the open position, as in conventional blinds, but to deflect the slats to the closed position in alternative directions (at one edge up the side of the room, while the next side edge on the side of the room down) to create a “pleated look”.

Various embodiments of the present invention provide drum sections with deflecting cables and / or actuator cords connected to different sections of the drum. Since the deflecting cables and cords of the actuator serve to actuate the louvre strips, the terms “deflecting cable” and “actuator cord” in this technical description are sometimes used interchangeably.

In one deflection mechanism, two drums are used, which are aligned on one axis, mounted in the housing and have a deflecting shaft protruding through the axis of rotation of the drums. The deflecting shaft is engaged with the drive element of the drum, which, in turn, is engaged with one or two reels of the reel.

Another deflection mechanism uses two substantially parallel drums that are not coaxial with each other. These two drums are independently driven by separate deflecting shafts passing through the axis of rotation of the respective drums.

Thanks to various devices for fastening and laying out deflecting cables (or actuator cords) on the drums, it is achieved that both types of deflecting mechanisms can achieve any of the necessary capabilities.

The invention is illustrated in the drawings,

where FIG. 1 is an isometric view of a first embodiment of a louvre system according to the present invention with a partially exploded isometric view of a mechanism inside an upper jumper, also shown on top of a louver;

figure 2 is an isometric image of one of the deflecting blocks in figure 1 with a casing, taken for clarity;

figure 3 is an isometric exploded view of figure 2;

figv is an isometric image of a vertical section along the axis of rotation of the deflecting unit in figure 2;

figure 4 is an isometric image of the drums in figure 3;

5 is an isometric view of the drum of FIG. 4 from the opposite end;

Fig.6 is an end view of the drum of Fig.5;

Fig.7 is an isometric image of another drum in Fig.3;

Fig.8 is an isometric image of the drum in Fig.7 from the opposite end;

Fig.9 is an isometric image of the casing of the deflecting unit in Fig.3;

figure 10 is an isometric image at an angle from below the casing in figure 9 from the opposite end;

11 is an isometric image of a deflecting block in figure 3;

12 is an isometric view from the opposite end of the driving member of the drum drive of FIG. 11;

Fig.13-15 are a series of isometric images showing the assembly process of two drums, the driving element of the drum drive and the spring in Fig.3;

Fig. 16 is a sectional view of the drum of Fig. 5;

Fig.17-19 are a continuation of a series of isometric images of the assembly process of two drums, the driving element of the drum drive and the spring in Fig.3;

FIG. 20 is a schematic isometric view of a partial cutaway of the blinds of FIG. 1, showing the position of the drums and the laying of the deflecting cables for a double pitch configuration, as well as corresponding views of the ends of the drums to more clearly indicate the relative position when the drums rotate;

Fig.21 is similar to Fig.20, but shows the position of the strips of the blinds and the drums when the blinds are closed with the edge, from the premises down;

Fig.22 is similar to Fig.20, but shows the position of the strips of the blinds and the drums when the blinds are closed with the edge, from the premises up;

FIG. 23 is a schematic isometric view of a partial cutaway of the blinds of FIG. 1, showing the position of the drums and the laying of the deflecting cables for a deflecting configuration that allows the opening of one section of the blinds while the other section is closed, as well as corresponding views of the ends of the drums for more a clear indication of the relative position during the rotation of the drums;

Fig.24 is similar to Fig.23, but showing the position of the slats, blinds and drums when the blinds are closed with the edge from the side of the room down;

Fig.25 is similar to Fig.23, but showing the position of the louvre strips and drums when the lower portion of the blinds is closed with the edge from the side of the room down, while the upper portion of the blinds remains rejected in the open position;

FIG. 26 is a schematic isometric view of a partial cutaway of the blinds of FIG. 1, showing the position of the drums and the routing of the deflecting cables for a pleated view for a double pitch configuration, as well as corresponding views of the ends of the drums to more clearly indicate the relative position when the drums rotate;

Fig.27 is similar to Fig.26, but showing the position of the louvre strips and drums when the louvres are closed with pleating in one direction;

Fig. 28 is similar to Fig. 27, but showing the position of the louvre strips and the drums when the louvres are closed with pleating in the opposite direction;

FIG. 29 is an isometric view of another embodiment of a louvre system made in accordance with the present invention with a partially exploded isometric view of a mechanism inside an upper lintel, also shown above the louvre;

Fig is an isometric image of a gear mechanism for incremental movement of the blinds in Fig.29;

FIG. 31 is an exploded isometric view of the gear mechanism of stepwise movement in FIG. 30;

Fig is an isometric image in a partially exploded view of the gear mechanism of stepwise movement in Fig.30;

FIG. 33 is a view along axis 33-33 of FIG. 32;

Fig. 34 is an isometric view of a casing cover for the gear mechanism of stepwise movement in Fig. 31;

Fig is an isometric image of driven gears of the gear mechanism of stepwise movement in Fig;

FIG. 36 is an isometric view of a gear wheel of stepwise movement of the gear mechanism of stepwise movement in FIG. 31;

Fig.37 is an isometric image of one of the deflecting blocks of the blinds in Fig.29;

Fig. 38 is an exploded isometric view of a deflecting unit in Fig. 37;

Fig. 39 is an isometric view of one of the drums of the deflecting unit in Fig. 37;

Fig is an isometric image of the casing of the deflecting unit in Fig;

Fig. 41 is a schematic isometric view of a partial cutaway of the blinds in Fig. 29, showing the position of the drums and the laying of the deflecting cables for a double-step configuration, as well as the corresponding kind of the step-by-step gear mechanism for more clearly indicating the relative position during rotation of the driven gears;

Fig. 42 is similar to Fig. 41, but showing the position of the louvre strips and the drums and the gear mechanism of stepwise movement, when the louvres are closed with the edge from the side of the room down;

Fig. 43 is similar to Fig. 42, but showing the position of the louvre strips and the drums and the gear mechanism of stepwise movement, when the louvres are closed with the edge from the side of the room up;

Fig. 44 is a schematic isometric view of a partial cutaway of the blinds in Fig. 29, showing the position of the drums and the laying of the deflecting cables for a configuration that allows a part of the blinds to be open while the other part is closed, as well as a corresponding view of the gear mechanism step-by-step movement, for a clearer indication of the relative position during rotation of the driven gears;

Fig. 45 is similar to Fig. 44, but shows the position of the louvre strips, the drums and the gear mechanism of stepwise movement when the lower portion of the blinds is closed with the edge from the side of the room down, while the upper portion of the blinds remains deflected to the open position;

Fig. 46 is similar to Fig. 44, but shows the position of the louvre strips, the drums and the gear mechanism of stepwise movement, when the upper section of the blinds is closed with the edge from the side of the room up, while the lower section of the blinds remains rejected to the open position;

Fig. 47 is a schematic isometric view of a partial cutaway of the blinds in Fig. 29, showing the position of the drums and the laying of the deflecting cables for pleating and double-step configurations, as well as the corresponding type of the gear mechanism of step-by-step movement, to more clearly indicate the relative position during rotation of the followers gears;

Fig. 48 is similar to Fig. 47, but shows the positions of the louvre strips, drums and the gear mechanism of stepwise movement when the louvres are closed with pleating in one direction; and

Fig. 49 is similar to Fig. 47, but shows the positions of the louvre strips, the drums and the gear mechanism of stepwise movement when the louvres are closed with pleating in the opposite direction.

One deflecting shaft, design with coaxial drums

The blinds 10, FIG. 1, include an upper jumper 12 and a plurality of strips 14 suspended to the upper jumper 12 by means of deflecting cables 16 and associated cross cords 16t (see FIG. 20), which are contained together in the staircases. The lifting cords 20 are secured at the bottom of the lower bar (or lower jumper) 18, which is usually heavier than the other bars 14. As is well known in the art, the lifting cords 20 are routed through the gasket openings in the bars 14, through the upper jumper 12 and out through cord locking mechanism 22. The deflecting cords 24 drive the cord deflecting device 26, which is used to rotate the deflecting shaft 28 around the longitudinal axis to drive the deflecting units 30. In this embodiment of the invention, there are two sets of deflecting cables 16, which are given the following, more specific designations Fig.20:

- position 16 is a generic designation for deflecting cables;

- index “a” is used for the first set, and index “b” is used for the second set of deflecting cables;

- additional indices “f” or “r” are used to indicate the front (from the side of the room) or back (from the side of the wall or window) side.

Note that in some examples there are no second sets of deflecting cables. The actuator cord may also be used in some examples (such as in FIG. 23) and designated as 16x. The actuator cord 16x runs parallel to the deflecting cables 16 and is attached to one of the deflecting cables 16 by a node 32 (see FIG. 23) or other fixing means, such as a fastener 32, which is described in detail in US Pat. No. 6,845,802 “Selective Deviation Device for blinds systems for architectural openings ”, which is incorporated herein by reference. While the deflecting shaft 28 in this embodiment of the invention is driven by a cord deflecting device 26 (which is described in detail in Canadian patent No. 2206932 "Anderson" dated December 4, 1997 (1997/12/04), which is included in this description by reference), it is understood that other types of actuators may be used, such as a bar or mechanized deflector.

Briefly, in FIGS. 2 and 3, the deflecting unit 30 includes a first drum 34, a second drum 36, a drum driving member 38, a clearance adjustment spring 40, a housing 42 and a housing cover 44.

4, 5, 6 and 16, the first drum 34 includes two concentric cylinders 46, 48 connected to each other by a centrally located partition 50. The outer cylinder 46 defines two axially extending slit openings 52 spaced approximately one hundred and twenty ( 120 °) degrees between each other, as well as an axially extending limit stop 54, approximately sixty (60 °) degrees from one of the two slotted holes 52.

About halfway from its axial size, the inner cylinder 48 increases in diameter in a jump, turning into an inner cylinder 58 of a larger diameter over a substantial portion of its perimeter. The end result is a crescent-shaped end 56 (see FIG. 6) that extends about two hundred and twenty (220 °) degrees around the perimeter of the inner cylinder 48, and this end 56 ends with radially protruding ledges 60, 62. As described in more detail below, the end 56 acts to reinstall and maintain the drum drive element 38 within the deflecting unit 30, and the steps 60, 62 enable the drum drive element 38 to rotate each of the drums 34, 36. The baffle 50 defines a through hole 64 (see FIG. 6 ) which Used for attaching spring 40 to adjust the gap drums 34, 36 as described in more detail below.

7 and 8, the second drum 36 is identical to the first drum 34, except that the second drum 36 includes a circumferentially extending and axially protruding ring 66 with an inner diameter slightly larger than the outer diameter of the cylinder 46. This ring 66, located only at the end of the drum 36 opposite the end defining the slit hole 52 and the limit stop 54, and the end on which the ring 66 is located, belong to the inner end 68 of the second drum 36, forming the other outer end 70. Similarly, the first drum 34 has an inside the early end 72 and the outer end 74. When the drums 34, 36 are assembled together, the ring 66 of the second drum covers the inner end 72 of the first drum 34, to prevent any of the deflecting cables 16 from falling between the first and second drums 34, 36, as will be clear below.

11 and 12, the cylindrical drive element 38 of the drum drive defines a hollow shaft 76 with an internal cavity of a non-cylindrical profile for engagement with the deflecting shaft 28 so that the rotation of the deflecting shaft 28 causes the rotation of the element 38 of the drum drive. The drum driving member 38 also includes an axially extending rectangular key 78 in the middle between the ends of the drum driving member 38. The length of the drive element 38 of the drum drive is slightly longer than the length of the two drums 34, 36, assembled together, so that the ends of the drive element 38 of the drum drive project for the assembly of the drums, and these ends can be used to support the assembly of the drums with the possibility of rotation on the saddle supports 96, 98 of the casing 42, as described in more detail below. The length of the dowel 78 is essentially equal to the distance from the end face 56 of the first drum 34 to the end face 56 of the second drum 36 when two drums 34, 36 are assembled together. The outer diameter of the drum driving member 38 is slightly smaller than the diameter of the inner cylinder 48 of the first and second drums 34, 36. When the drum driving member 38 is inserted in two drums 34, 36, as described in more detail below, the drum driving member 38 lies inside and is coaxially aligned with the two drums 34, 36. The key 78 selectively engages with the protrusions 60, 62 of the drums 34, 36 depending on the direction of rotation of the deflecting shaft 28, as described in more detail below.

As shown in FIG. 3, the clearance adjustment spring 40 includes two axially protruding shanks 80, 82, which, as described in more detail below, pass through holes 64 in the partitions 50 of the drums 34, 36, respectively, which connects the first and second the drums 34, 36 together and gives a preliminary load from them to the key 78 of the driving element 38 of the drum drive. 3B, the spirals of the clearance adjustment spring 40 lie in a cavity formed between the outer cylinders 46, portions 58 of the inner cylinders 48 and the baffles 50 of the drums 34, 36.

FIGS. 13-15 and 17-19 show the assembly process of two drums 34, 36, a drive member 38 of the drum drive and the spring 40. FIG. 13 shows that in the first step, the shank 82 of the spring 40 is inserted into the hole 64 (see FIG. .6) in the second drum 36. In the next step (Fig. 14), the drive element 38 of the drum drive is inserted into the inner cylinder 48 of the second drum 36 by pushing one end of the key 78 (see Fig. 15) until it abuts against the end face 56 the second drum 36. Then the first drum 34 is assembled by inserting the second shank 80 of the spring 40 into the hole 64 in ohm drum 34, and then the two drums 34, 36 are brought together until their corresponding inner ends 72, 68 converge and the ring 66 of the second drum 36 does not put on the inner end 72 of the first drum 34 (see. Figure 17).

In the next step, the shanks 80, 82 of the spring 40 are bent, which protrude through the corresponding holes 64 of the drums 34, 36 to fix the shanks 80, 82 on the respective drums 34, 36. For this, tool 84 (as shown in Fig. 17) can be used, the ends can be simply bent using a pair of nippers, a flat screwdriver or other known means. Now, the drums 34, 36 are assembled with a gap adjustment spring 40 and a drum driving member 38 inside the assembly. The clearance adjustment spring 40 holds the drums 34, 36 together (since the shanks 80, 82 of the spring 40 are bent laterally so that they do not slip back out of the drums 34, 36).

In the next step (see Fig. 18), it is necessary to preload the drums 34, 36 on the key 78 of the driving element 38 of the drum drive. This is accomplished by grabbing each drum 34, 36 and spreading them to a distance sufficient so that one of the drums 34, 36 moves axially far enough to release the keys 78 of the driving element 38 of the drum drive. Then the drum 34 is rotated counterclockwise 360 ° relative to the drum 36, and the drums are again connected together and then released. Both drums 34, 36 immediately rotate in opposite directions, pressed by the biasing force of the clearance adjustment spring 40, until the first ledge 60 of the first drum 34 and the second ledge 62 of the second drum 36 both interact with the key 78 of the drum driving member 38. Now, two drums 34, 36 are given a preliminary load on the key 78 of the driving element 38 of the drum drive.

As shown in FIG. 19, any of the reels 34, 36 can rotate around a common axis of rotation (which also corresponds to the axis of rotation of the driving element 38 of the drum drive). If the first drum 34 rotates clockwise (as viewed from the viewpoint of FIG. 19) while holding the second drum 36 stationary, the second ledge 62 of the first drum 34 acts on the key 78 of the drum driving member 38, causing the drum driving member 38 to also rotate clockwise. This key 78, in turn, acts on the second ledge 62 of the second drum 36 so that it causes the second drum 36 to rotate in a clockwise direction, and the entire assembly rotates as a block, until and before something prevents this rotation (that, as discussed below, is precisely what can happen when the limit stop 54 on the drums 34, 36 abuts against one of the limit stops on the casing 42).

On the other hand, if the first drum 34 rotates counterclockwise, its second ledge 62 moves away from the key 78 so that the first drum 34 can rotate relative to the second drum 36, which can remain stationary. However, to rotate the first drum 34, the preload force of the spring 40 must be overcome.

A similar situation with the second drum 36, provided that the point of view is at the opposite end compared to Fig. 19. That is, as seen from the back in FIG. 19, the second drum 36 can rotate clockwise only if the entire assembly rotates with it, and it can rotate counterclockwise while the first drum 34 remains stationary, provided that the user overcomes the preload force of the spring 40. In the remainder of this technical description, reference is made to the position of the drums 34, 36, in which no external force acts to overcome the preload force of the spring 40 as a neutral position for opening sinking block 30. This is the position in which the second ledge 62 of the first drum 34 abuts the key 78 and the second ledge 62 of the second drum 36 abuts the key 78.

3, 9 and 10, the casing 42 includes two side walls 86, 88, two end walls 90, 92 and a lower wall 94. The end walls 90, 92 define the U-shaped saddle supports 96, 98, respectively, which create the support rotatably assembling the drums, supporting the ends of the driving member 38 of the drum drive. The consoles 100, 102 protrude at an angle of approximately 45 ° to the planes defined by the end walls 90, 92, and they extend above the center axis of the deflecting shaft 28, which passes through the drive drum driving member 38, thereby preventing the drum assembly from being lifted upward from the casing 42. The diameters of the ends of the inner cylinders 48 of the reels 34, 36 are larger than the saddle bearings 96, 98, so that the inner cylinders 48 must abut one of the saddle bearings 96, 98 if the drums 34, 36 are axially displaced, thus preventing highly large shear in the axial direction.

On each side of each saddle support 96, 98 there are two shelves 110, 112 (best shown in FIG. 3, on the end wall 92, as well as on the wall 90 of the opposite end), while the upper shelf 110 is less lowered (at a higher mark) than the lower shelf 112. These shelves 110, 112 act as limit stops in conjunction with the limit stop 54 on respective drums 34, 36 to limit the degree of freedom of rotation of the drums 34, 36 in any direction. The signs of restrictive stops are explained in more detail below.

The bottom wall 94 of the casing 42 defines two elongated slotted holes 104, 106 and a shorter rectangular hole 108. The elongated slotted holes 104, 106 are designed to pass through the casing 42 and through the corresponding holes in the upper jumper 12 (not shown) of the front and rear deflecting cables. A shorter rectangular hole 108 is made for lifting cords 20.

In Figs. 3 and 3B, the cover 44 of the casing is placed on top of the casing 42 to add spatial rigidity to the casing 42 and to prevent tangling cables 16 from tangling and falling off the drums 34, 36 in case of weakening of the cables 16 (such as when someone lifts some from slats 14 blinds 10 by direct exposure).

1 and 3, after the drum assembly is assembled and preloaded, as shown in FIGS. 13-19, it is inserted into the casing 42, while the ends of the drum driving element 38 are rotationally supported on saddle supports 96, 98 casing 42. The deflecting shaft 28 is inserted through the hollow shaft 76 of the driving element 38 of the drum drive, and one end of the deflecting shaft 28 is connected to the mechanism of the cord deflecting device 26 by the drive, as shown in FIG. Typically, two or more deflecting units 30 are mounted on the deflecting shaft 28, and the entire assembly of the deflecting drive is installed in the upper jumper 12 of the louvers 10.

At some point, either before or after installation, the deflector drive assembly in the upper jumper 12, the deflector cables 16 are attached to the drums 34, 36 according to the required spacer to form the desired configuration, as described in more detail below. To attach the deflecting cables 16 to the reels 34, 36 at the end of the cable to be secured, a thickening is performed (such as a knot or ball), and such a thickening is laid for the desired slotted hole 52 of the outer cylinder 46 of the desired drum 34, 36, while the rest of the deflecting the cable 16 passes through the slot hole 52. The thickening prevents the deflecting cable 16 from being pulled out of the corresponding drum 34, 36 and thus quickly and efficiently attaches the deflecting cable 16 to the corresponding drum 34, 36.

Double step configuration

20-22 show a routing of deflecting cables for a typical dual pitch configuration. In these drawings and similar drawings following them, the laying of the deflecting cables 16 and the position of the drums 34, 36 (especially to show the relative position of the attachment points of the ends of the deflecting cables 16 to the drums 34, 36) are shown relative to the corresponding positions of the slats 14 of the louvres 10. For for greater clarity, these views include views of the ends of the respective drums 34, 36 to represent the position of the attachment points for each of the deflecting cables 16 (attached to the slotted holes 52 of the drums 34, 36) or location granichitelnogo stop 54.

As explained earlier, the deflecting cables have a common designation of 16, but are additionally identified by the following indices:

- “a” for the first set of deflecting cables that support the upper bar 14t in each pair of upper and lower bars 14t and 14b;

- “b” for the second set of deflecting cables that support the lower bar 14b in each pair of upper and lower bars 14t and 14b;

- “f” for front deflecting cables, those that are from the side of the blinds facing the room;

- “r” for rear deflecting cables, those that are on the side of the blinds facing the wall (can also refer to facing the window);

- "x" for the cord of the actuator, which is usually fixed to one of the deflecting cables 16.

Briefly, in FIG. 1, it is noted that the deflecting mechanism 26 is a worm gear mechanism with a cord drive as proposed in US Pat. No. 6,561,252, which is incorporated herein by reference. The cord roller is directly connected to the worm, which drives the gear to which the deflecting shaft 28 is connected. As is well known in the art, in the worm gear mechanism, the worm is able to drive the gear clockwise and counterclockwise. However, the gear is not able to rotate the worm back; the mechanism is blocked as soon as the gear begins to transfer the drive to the worm. Although a worm gear is a very convenient and rational way to ensure that the deflector mechanism 26 cannot return, other means (such as a ratchet mechanism, a one-way brake or clutch, all with release mechanisms) can be used in alternative embodiments of the invention, to guarantee the same condition.

The ability to rotate the deflecting shaft 28 in any direction (clockwise and counterclockwise) from the primary side (using the cord deflector 26), but the lack of the ability to reverse rotate the deflecting shaft 28 on the secondary side is a useful feature for deflecting unit operations 30, as will be discussed in more detail below.

In Fig. 20, the drums 34, 36 are in the neutral position (again, the neutral position refers to the position of the drums 34, 36, in which no external force acts to overcome the preload force of the spring 40 and, therefore, when the second step 62 of the first drum 34 abuts the key 78, and the second ledge 62 of the second drum 36 abuts the key 78). The strips 14 are in an open position in a double-step configuration in which each pair of adjacent strips 14t, 14b is laid straight up to each other, and there is a large empty space between this pair of adjacent strips 14t, 14b. This large empty space is approximately two standard distances, or a double step (dp) between the slats in conventional blinds with evenly spaced slats.

The upper bar 14t of each pair of upper and lower bars 14t, 14b carries a transverse cord 16t extending between the first set of front and rear deflector cables 16af, 16ar. (For rationality, reference will be made to deflecting cables when referring to the entire connected staircase, including both front and rear deflecting cables, and cross cords connecting these front and rear deflecting cables, and this use will be apparent in the context of use ) The first rear deflecting cable 16ar is laid on top of the first drum 34 of the deflecting unit 30 and is mounted in one of the slotted holes 52ar in the first drum 34 (we will notice the type designation of the slotted hole 52, as shown, for example, in Fig. 5, but this designation is modified by the index ar, which corresponds to the index of the deflection cable 16аr, which is mounted in this particular slotted hole. This nomenclature will be through in this technical description). The first front deflecting cable 16af is laid on top of the second deflecting drum 36 and is mounted in the slotted hole 52af in the second drum 36. The ring 66 of the second drum 36 prevents the cables from falling between the two drums 34, 36.

Similarly, the lower bar 14b of each pair of upper and lower bars 14t, 14b carries a transverse cord 16t extending between the first set of front and rear deflector cables 16bf, 16br. The rear deflector cable 16br of the second set is laid on top of the second drum 36 and fastened in the slotted hole 52br in the second drum 36. Finally, the front deflector cable 16bf of the second set of deflector cables is laid on top of the first drum 34 and secured in the slot 52bf in the first drum 34.

All deflecting cables 16 are attached to the drums 34, 36 so that when the drums are in their “neutral” position, as shown in FIG. 20, the strips 14 are installed in a double pitch configuration in which pairs of adjacent upper and lower strips 14t, 14b are stacked straight up to each other, creating a large gap of the double step "dp" between sets of paired strips 14t, 14b.

1 and 21, one of the deflecting cords 24 is pulled so as to cause rotation of the deflecting shaft 28 in a clockwise direction (when viewed from the viewpoint of FIGS. 1 and 21). Clockwise rotation of the deflecting shaft 28 causes the clockwise rotation of the drum driving member 38 (and the keys 78) in the deflecting unit 30. When the key 78 rotates, it presses on the first protrusion 60 (see FIG. 5) of the first drum 34, thereby causing the first drum 34 to also rotate clockwise. The second drum 36 also wishes to follow the key 78, since the clearance adjustment spring 40 preloads the second drum 36 on the key 78. However, very soon after the second drum 36 starts to rotate clockwise, the limit stop 54 acts on the limit stop 110 of the upper shelf (see FIG. 3) on its side of the casing 42, stopping any additional clockwise rotation of the second drum 36, despite the compression of the clearance adjustment spring 40. Indeed, since the second drum 36 has stopped rotation, the user must now exert sufficient force to overcome the biasing force of the clearance adjustment spring to continue to rotate the deflecting shaft 28, the drum driving member 38 and the first drum 34. As the user continues to rotate the deflecting shaft 28 in the clockwise direction, the first drum 34 continues to rotate until its limit stop 54 acts on the limit stop 112 of the lower shelf at its respective end stand not the casing 42. At this point, the planks are in the closed position, with the edge from the side of the room down, as shown in Fig.21. The change in position of the drums 34, 36 can be seen more clearly when comparing the starting positions of the limit stop 54 of the drum 34 shown in FIG. 20 (in the neutral position) with the final position of the limit stop 54 on the first drum 34 shown in FIG. 21, which indicates that the drum 34 turned almost a full 180 °.

The slotted holes 52ar and 52bf on the first drum 34, which are connected to the first deflecting cable 16ar and the second deflecting cable 16bf, also rotated by the same angle, approximately 180 °. As a result, the rear deflector cable 16ar of the upper bar 14t is pulled upward by a distance approximately equal to π · r (where r is the radius of the drum 34), and the front deflector cable 16bf of the lower bar 14b is extended by the same distance. The other two deflecting cables 16af, 16br, which are connected to the second drum 36, remain substantially stationary. As a result, the front (from the side of the room) edges of the upper slats 14t do not move, while the rear (from the side of the wall) edges of these upper slats 14t are turned upwardly deflected to the closed position with the edge downward from the side of the room (as shown in FIG. 21). Likewise, the rear (wall side) edges of these lower slats 14b move upward only a very small distance, while the front (room side) edges of these lower slats 14b are turned down to complete the deflection to the closed position with the edge from the room side down orientation blinds, as shown in Fig.21.

Thus, in FIG. 21, the second drum 36 does not rotate (or rotates a very small angle, just a few degrees, before the restrictive stop prevents it from rotating further), and the first drum 34 rotates clockwise (as seen from the left on FIG. 21) in order to move the blinds from the fully open double-pitch position of FIG. 20 to the closed position of the blinds with the edge from the room side downward FIG. 21. The very small rotation of the second drum 36 allows the edges of adjacent pairs of slats 14 to overlap each other so that when the blinds are closed, there is no visible light gap.

Note that the limit stops 110, 112 (see FIG. 3) are designated as the upper limit stop 110 and the lower limit stop 112, as they are shown in the drawings, and their designation makes it easier to distinguish between the two limit stops 110, 112. However, the limit stops the stops 110, 112 may be at the same height with respect to each other, therefore, it will be more accurate to designate them as the first stop 110 and the second stop 112.

Spring 40 pushes the drums 34, 36 back to a neutral position, pressing the first drum 34 to rotate it counterclockwise and pressing the second drum 36 to rotate it clockwise. However, there are mechanisms that prevent both of these rotations, as explained below. The second drum 36 cannot additionally rotate clockwise due to the interaction of the limit stop 54 with the limit stop 110 of the casing 42. The first drum 34 cannot additionally rotate counterclockwise because it is stopped by the cord deflector 26. For the first drum 34 to rotate counterclockwise, he should push the drum driving element 38 in a counterclockwise direction since the key 78 of the drum driving element 38 is in contact with the first pom 60 of the first drum 34. The rotation of the driving member 38 drives the drums also require rotation of the deflecting shaft 28, since the docking non-circular cross-section drive member 38 driving the drum and the diverter shaft 28 causes them to rotate together. However, in order for the deflector shaft 28 to rotate counterclockwise by the drum 34, it will have to drive the worm gear of the deflector 26 (as mentioned above, this deflector 26 is described in Canadian Anderson Patent No. 4,069,332, dated December 4, 1997 (1997/12/04), which is incorporated herein by reference).

However, as explained above, the worm gear cannot be driven from the back side, so any attempt to drive the deflecting mechanism 26 by the deflecting shaft 28 will cause the deflecting mechanism 26 to lock. Therefore, the laths 14 of the louvres 10 remain in the position necessary for the user so far, and if the user does not bring them into a new position by tensioning one of the deflecting cords 24 on the primary side of the deflecting device 26. To return the blinds from this position to the neutral position of FIG. 20, the user can pull the other deflecting cord 24, driving the mechanism of the deflecting device, the deflecting shaft 28 and the driving element 38 of the drum drive in a counterclockwise direction. This allows the spring 40 to bring the first drum 34 into a neutral position, while the second drum 36 remains in the same position.

FIG. 22 shows the same double-pitch blinds as in FIG. 20, but when the deflector mechanism has moved the blinds to a position in which the slats are deflected to the closed position with the edge facing upwards. In order to achieve this from the neutral position of FIG. 20, the user pulls on another deflecting cord 24 (see FIG. 1) (not on the one that pulled in order to obtain a deflected closed position with the edge downward from the room side of FIG. 21). This causes counterclockwise rotation of the drums 34, 36. In this case, the restrictive stop 54 of the first drum 34 abuts almost immediately against the limit stop 110 of the upper shelf on its corresponding wall 90 of the casing 42, stopping the additional rotation of the first drum 34. The second drum 36 continues to rotate counterclockwise arrows until its limit stop 54 abuts against the limit stop 112 of the lower shelf on its corresponding wall 92 of the casing 42, stopping the rotation of the second drum 36. The second drum 36 will turn against clockwise approximately 180 ° (as shown by a comparison of the positions of the limit stop 54 on the second drum 36 in FIGS. 20 and 22).

The first rear deflector cable 16a r and the second front deflector cable 16bf, which are mounted on the first drum 34, remain substantially stationary, while the ends of the first front and second rear deflector cables 16af and 16br rotate counterclockwise with the second drum 36. The first front deflector the cable 16af is wound on the second drum 36, pulling the edges of the edges from the premises of the upper strips 14t upwards by a distance of approximately π · r. At the same time, the second rear deflection cable 16br is unwound from the second drum 36, lowering the edges from the wall side of the lower slats 14b by the same distance π · r. The result is closed blinds with an upwardly inclined edge from the side of the room of FIG. 22.

Selective Deviation Configuration

On Fig-25 shows the laying of deflecting cables 16 on a mechanism very similar to that described above, to obtain a device in which one part of the blinds can be closed, while the other part remains open. On Fig there are several differences in equipment between its configuration and the configuration of Fig.20. Firstly, instead of two sets of double-step staircases, these blinds have a single-step staircase of the same standard with a rear deflecting cable 16r, a front deflecting cable 16f, and transverse cords 16t passing between the front and rear deflecting cables 16f, 16r. Secondly, another deflecting cable of the actuator cord 16x is fastened to the rear deflecting cable 16r by the assembly 32 or other fixing means, such as the cord mounting part 32. Thirdly, the first drum 34 does not have a limit stop 54 (limit stop 54 can simply be cut off from the standard first drum 34 to fit into this configuration).

In this configuration, the rear deflection cable 16r is wound counterclockwise around the second drum 36 and is attached to the second drum 36 in the slotted hole 52r. The front deflector cable 16f is wound clockwise around the second drum 36 and is attached to the second drum 36 in the slot hole 52f. The third deflector cable or cord 16x of the actuator is wound clockwise around the first drum 34 and is attached to the first drum 34 in the slot hole 52x. Another slot hole 52 of the first drum 34 is not used to attach the cord in this embodiment of the invention. 23, the drums 34, 36 are shown in a neutral position, with straps 14 tilted to the open position in a one-step configuration, with straps 14 spaced at equal distances.

24, one of the deflecting cords is tensioned, causing the deflecting device 26 to rotate the deflecting shaft 28 counterclockwise, which also rotates the drive element 38 of the drum drive and both the drums 34, 36 counterclockwise. The second drum 36 is rotated counterclockwise with a key 78 on the drum driving member 38, stopping when its limit stop 54 reaches the limit stop 112 of the lower shelf on the wall 92. Since the limit stop 54 on the first drum 34 is removed, neither it does not prevent the spring 40 drive the first drum 34 counterclockwise along with the second drum 36. As the second drum 36 rotates counterclockwise, it raises the front cable 16f and deflecting drops rear deflector cable 16r. When the first drum 34 rotates counterclockwise, it lowers the actuator cord 16x by the same distance as the rear deflector cable 16r. Thus, the strips of the entire blinds are in a closed position with the edges from the side of the room up. When the deflector cord 24 is released, the worm mechanism on the deflector drive device 26 stops the deflector shaft 28 in a position that causes both drums 34, 36 to remain in the position in which they were when the deflector cord 24 was released.

To rotate back to the neutral position, another deflecting cord 24 is pulled over it, causing the deflecting shaft 28 to rotate clockwise. On Fig shows the position of the blinds when the deflecting shaft 28 turned clockwise for the neutral position of Fig.23. When the deflecting shaft 28 is clockwise rotated by the deflecting drive device 26, it rotates the drum driving element 38 clockwise, and the key 78 of the drum driving element 38 contacts the step on the first drum 34, turning it clockwise the first drum 34. The spring 40 starts to cause the second drum 36 to rotate clockwise with the first drum 34, but its limit stop 54 abuts the limit stop 110 of the upper shelf on the wall 92 of the casing 42 at the neutral position, preventing any additional clockwise rotation of the second drum 36. The first drum 34 continues to rotate clockwise, forcing the actuator cable 16x to wrap around the first drum 34, which lifts the actuator cable 16x. Since the actuator cable 16x connects to the rear deflector cable 16r at point 32, it raises the rear deflector cable 16r at this point 32. All straps 14, supported by the transverse cords 16t below point 32, are exposed when the rear deflector cable 16r raises the edges of the inverted to the wall of the edge of these strips 14. As a result, all the strips 14 from the bottom 32 of the attachment point of the actuator cable 16x to the rear deflecting cable 16r are deflected to the closed position downward by the edge from the side of the room, and the rest APIS 14 are deflected to an open position, as shown in Figure 25.

The location of the attachment point 32 with respect to the rear deflection cable 16r defines a point at which a “transition” occurs between the planks deflecting to the closed position and those that remain deflected to the open position. If, alternatively, the actuator cable 16x was attached to the front deflector cable 16f instead of the rear deflector cable 16r, then the portion of the blinds below the attachment point 32 will be closed in the position with the edges upward from the side of the room, and not with the edges down from the side of the room, as shown here. From this it also follows that by using the reverse arrangement of the drums 34, 36 in the casing 42, the action of the blinds 10 can be reversed compared to the previous description. For example, in the passage from FIG. 23 to FIG. 24, the slats 14 will be closed upward by the edge from the side of the room, instead of shown downward by the edge from the side of the room.

Pleated appearance configuration

Figures 26-28 show the routing of deflecting cables for a typical configuration of blinds with pleated appearance. On Fig no differences in equipment between the configuration with the appearance with pleating and the configuration of the double step of Fig.20. In both cases, the two sets of deflection cables 16af, 16ar, 16br, 16bf are double with respect to the standard pitch. The only difference is the laying of the deflecting cables 16.

In this device, again, there are two sets of deflecting cables. The first front deflecting cable 16af of the upper slats 14t is wound counterclockwise around the second drum 36 and is attached to the second drum 36 in the slotted hole 52af. The first rear deflecting cable 16ar of the upper bars 14t is wound clockwise around the first drum 34 and is attached to the first drum 34 in the slotted hole 52ar. The second front deflecting cable 16bf of the lower strips 14b is wound clockwise around the second drum 36 and is attached to the second drum 36 in the slot hole 52bf. Finally, the second rear deflection cable 16br of the lower bars 14b is wound counterclockwise around the first drum 34 and is attached to the first drum 34 in the slot hole 52br.

As in the case of the double-pitch blinds shown in FIG. 20, the pleated appearance of FIG. 26 also starts with bars in the double-pitch configuration when the reels 34, 36 are in the neutral position. On Fig, when the deflecting drive device 26 rotates the deflecting shaft 28 in a clockwise direction, the key 78 is in contact with the first drum 34, causing it to rotate clockwise, and the spring 40 causes the second drum 36 to also rotate clockwise. However, the limit stop 54 on the second drum 36 abuts almost immediately against the limit stop 110 of the upper shelf at the end 92 of the casing 42, preventing any additional clockwise rotation of the second drum 36 for the neutral position. The first drum 34 continues to rotate until its limit stop 54 abuts against the limit stop 112 of the lower shelf in the wall 90 of the casing 42.

Since the front (on the edge from the side of the room) deflecting cables 16af, 16bf and the upper and lower bars 14t, 14b, respectively, are attached to the second drum 36, and this second drum 36 rotates only a few degrees before its limit stop 54 prevents its additional clockwise rotation, the front (on the edge from the side of the room) edges of these strips 14t, 14b remain almost stationary. On the other hand, the rear deflector cables 16a r and 16br are attached to the first drum 34, which rotates. When the first drum 34 rotates clockwise, the first rear deflection cable 16a is wound onto the first drum 34, raising the rear (on the edge from the wall side) edges of the upper bars 14t to the position shown in FIG. 27. At the same time, the rear deflecting cable 16br of the lower bar 14b is unwound from the first drum 34, lowering the rear (or wall side) edges of the lower bars 14b to the position shown in FIG. 27, resulting in blinds deflected to the closed position with pleating appearance with the upper slats 14t deflected with the edge from the side of the room down, and the lower slats 14b deflected with the edge from the side of the room up.

On Fig shown blinds with external appearance with pleating Fig, but rejected into a closed position in the opposite direction, compared with Fig. In this example, the deflecting shaft 28 rotates counterclockwise, and only the second drum 36 rotates counterclockwise with it (the first drum 34 only starts to rotate and immediately stops with its limit stop 54, which has come into contact with the limit stop 110 of the upper shelf on the wall 90 casing 42). In this example, since the first and second rear deflector cables 16a r and 16br are attached to the first drum 34 and the first drum 34 does not rotate, the rear (on the edge from the wall side) edges of the upper and lower planks 14t, 14b remain substantially stationary. At the same time, the first and second front deflector cables 16af, 16bf rotate together with the second drum 36, while the first front deflector cable 16af is wound on the second drum 36 when the drum rotates counterclockwise, thereby raising the front ones (on the edge from the side rooms) the edges of the upper slats 14t. The second front deflecting cable 16bf of the lower bars 14b is unwound from the second drum 36 when the drum rotates counterclockwise, thereby lowering the front edges of the lower bars 14b (on the edge from the side of the room). The result is blinds in a closed position with pleating appearance with upper slats 14t deflected upward from the side of the room and lower slats 14b deflected downward from the side of the wall, as shown in FIG. 28.

It should be noted that in order to obtain the closed position of the strips 14 when deflected in opposite directions, as in the case of a pleated appearance, it may be preferable to make V-grooves on the front and rear edges of one strip in each pair to leave a clearance for the cross member stairs 16t. This V-groove can only be on the lower bars 14b, or it can only be on the upper bars 14t, or on both the upper and lower bars 14t, 14b, or it can only be on one edge of each of the bars 14 (opposite edges) .

Double deflection shaft design with parallel drums

29, the shutters 120 are very similar to the shutters 10 of FIG. 1, except that instead of using the deflecting units 30, the deflecting function is performed using double deflecting shafts 28, which functionally interconnect the deflecting blocks 122 with parallel drums with a step gear 124 displacement, as described in more detail below. The gear mechanism 124 stepwise connected, in turn, with the mechanism of the deflecting device, such as a deflecting device with a worm mechanism 26, using a short deflecting shaft 28 '.

Briefly, as shown in FIGS. 30-33, the stepping gear 124 includes a stepping gear 126, a driven gear 128 from the side, a driven gear 130 from the wall, a casing 132 of the stepping gear and a cover of a casing 134.

36, the stepping gear 126 is a substantially cylindrical gear defining a left portion 136 and a right portion 138. The left portion 136 includes a gear portion 140 extending about 200 ° along the arch, with a smooth, toothless portion remaining 142 of the left portion 136. Similarly, on the right side 138 a smooth, toothless portion 144 is installed which extends along a similar arch of approximately 200 ° corresponding to the toothed portion 140. Moreover, a noticeable thickening 146 passes through the remaining portion n avogo portion 138. The gear wheel 126 also sets the step movement of the hollow shaft 148 with a non-cylindrical cavity is sized to receive a biasing shaft 28 'of similar cross-section. The outer part of the shaft is defined as a cylindrical axis 150.

Fig. 35 shows a driven gear 130 from the side of the wall, which is a substantially cylindrical element, with a predetermined left section 152 and a right section 154, and these sections 154, 152 are separated by a radially extending flange 155. In the right cylindrical section 154, a hollow a non-cylindrical profile shaft 156 sized to receive the deflecting shaft 28 of a similar profile. The left portion 152 includes a first smooth portion 158 with a saddle section 160 (see also FIG. 31) precision manufactured to fit with a locking protrusion or collar 146 on the stepped gear 126 so as to prevent the driven gear 130 from moving during work interruption, as described in more detail below. The left portion 152 also includes a gear portion 162 that engages with the gear portion 140 of the stepped gear 126. Finally, the short axis 164 projects to the left of the gear portion 162. The driven gear 128 from the side of the building is similar to the driven gear 130 from the side of the wall.

On Fig casing 132 defines the main cavity 166, which houses the gear wheel 126 incremental movement. The through hole 168 (see Fig. 31) rotatably carries the axis 150 of the stepped gear 126, which projects to the left behind the gear section 140. Two smaller cavities 172 on both sides of the through hole 168 receive and rotate the left ends 164 driven gears 128, 130.

31, the cover 134 of the casing includes a plate 174 having a through hole 176 that rotatably carries the right end of the axis 150 of the stepped gear 126. The plate 174 also has two hollow cylindrical protrusions 178, sized to accommodate and rotate the right ends 154 of the driven gears 128, 130.

To assemble the stepping gear 124, the stepping gear 126 and driven gears 128, 130 are inserted into the corresponding cavities 166, 170 of the housing 132 (see FIG. 34) so that the left end of the axis 150 of the stepping gear 126 protrudes through the hole 168 in the casing 132, and the axis 164 of the driven gears 128, 130 were received in the recesses 172 in the casing 132. Then, the casing cover 134 is installed on the casing 132 (with the protrusions 135 on the casing 132 entering the holes 137 on the cover) so that the right end of the gear axis 150 wheel 126 escheniya performed through the opening 176 in the lid 134 and the housing portions right ends of the driven gears 128, 130 were in the hollow cylindrical protrusions 178 cover 134 housing. The driven gears 128, 130 are aligned with the stepping gear 126, as shown in FIGS. 32 and 33, with the saddle sections 160 in readiness to engage with the thickening 146 of the stepping gear 126. Reference should be made to this position of the driven gears 128, 130 relative to the stepping gear 126 (and the corresponding positions of the deflecting drums 184, 182, as described below) as being in the neutral position.

The toothed gear mechanism 124 operates using the principle of the Maltese discontinuous movement mechanism, which converts continuous rotational movement to intermittent movement, providing stepwise movement to the same position with high repetition accuracy. In this example, when the stepping gear 126 rotates clockwise from the neutral position (as seen from the viewpoint of FIGS. 31-33), the driven gear 128 from the room side rotates for a short period counterclockwise, while its saddle portion 160 does not fit with the thickening 146 of the gear 126 of the stepwise movement. The gear portion 162 of the driven gear 128 from the side of the room then meets the smooth toothless portion 142 of the step gear 126. The stepper gear 126 can thus continue to rotate clockwise, while the driven gear 128 from the side of the room remains stationary when its rotation is prevented by the thickening 146 of the stepped gear 126 which abuts the saddle section 160 of the driven gear 128 from the side of the room .

However, if the stepper gear 126 continues to rotate clockwise, the driven gear 130 from the side of the wall rotates counterclockwise and continues to do this for several revolutions before its saddle section 160 abuts against the thickening 146 of the stepper gear 126 , leading to a stop of additional rotation.

If the stepping gear 126 rotates counterclockwise from a neutral position, the opposite is the case. Namely, the driven gear 130 from the side of the wall rotates for a short period in a clockwise direction, before its additional rotation is prevented by its saddle part 160, which abuts against the thickening 146 of the stepped gear 126. The driven gear 128 on the premises side also rotates clockwise and continues to do this for several revolutions before its saddle section 160 abuts against the thickening 146 of the stepping gear 126, leading to a stop of the additional rotation. Of course, the deflecting shafts 28 extend into the hollow cylindrical protrusions 178 and are received into the hollow shafts 156 of the right portions 154 of the driven gears 128, 130 so that the deflecting shafts 28 rotate with their respective driven gears 128, 130.

On Fig and 38, each deflecting unit 122 includes a casing 180, deflecting drum 182 from the side of the wall and deflecting drum 184 from the premises.

On Fig shows a deflecting drum 182 from the side of the wall, which is a cylindrical element that defines the cylindrical axis 185, protruding from both ends, with each cylindrical axis 185 defines a non-cylindrical inside the hollow shaft 186, sized to receive and engage with similarly profiled deflecting shaft 28. The deflecting drum 184 from the premises also forms an outer cylindrical surface 188, which is connected to the inner cylindrical axis 185 using walls 190. Two elongated openings Tia 192 are defined in the outer cylindrical surface. One of the holes is located near one end of the cylinder 188, and the other is near the other end so that the two holes 192 are approximately 180 ° apart from each other. Both holes 192 can be seen in FIG. Deflecting cables 16 are mounted in these holes, as described in more detail below. The deflecting drum 184 from the side of the room is identical to the deflecting drum 182 from the side of the wall.

Fig. 40 is an isometric view of the casing 180 of the deflecting unit 122 of Figs. 37 and 38. The casing 180 includes two side walls 194, 196, two end walls 198, 200 and a lower wall 202. Each end wall 198, 200, each defines two U-shaped saddle supports 204a, 204b and 206a, 206b, respectively, which create supports with the possibility of rotation of the axes 185 of the drums 182, 184, as can be seen in Fig.37. The consoles 208a, 208b and 210a, 210b protrude at an angle of approximately 45 ° to the planes defined by the end walls 198, 200, and they extend above the central axial line of the deflecting shafts 28, which pass through the hollow shafts 186 of the drums 182, 184, thus preventing lifting the drums 182, 184 up from the casing 180.

The lower wall 202 of the casing 180 defines two slotted holes 212 aligned along the longitudinal axis with a shorter rectangular hole 216 between the two slotted holes 212. The elongated slotted holes 212 are designed to pass the rear and front deflecting cables through the casing 180 and through the corresponding holes in the upper jumper 12 ( not shown). A rectangular hole 216 provides a passage for the lifting cords 20.

To assemble the deflecting mechanism shown in FIG. 29, deflecting blocks 122 are first assembled. Deflecting cables 16 are routed through slotted holes 212 in the bottom wall 202 of casing 180. The ends of the deflecting cables 16 are attached to respective drums 182, 184 in respective slotted holes 192. Laying and the attachment of these deflecting cables 16 is performed as described below to obtain the desired deflection configuration.

Drums 182, 184 are mounted in respective U-shaped saddle supports 204a, 204b and 206a, 206b, respectively. The deflecting shafts 28 are inserted into the hollow shafts 186 of the deflecting drums 182, 184, and the ends of these deflecting shafts 28 are inserted into the hollow shafts 156 of the driven gears 130, 128, respectively. Driven gears 130, 128 should already be assembled in the gear mechanism 124 stepwise movement, as described above. A short deflecting shaft 28 'is used to connect the output from the mechanism 26 of the cord deflecting device to the hollow shaft 148 of the stepping gear 126. Note that the cord deflector mechanism 26 shown here is only one type of many deflector mechanisms that can be used for such practical applications. Although the mechanism 26 of the cord deflecting device is shown, it is understood that the deflecting shaft 28 'may be rotated by other means, such as a rod deflecting device or a mechanized deflecting device. It is even possible that the gear mechanism 124 incremental movement was an integral part of the mechanism 26 of the deflecting device so that the deflecting shaft 28 'was not needed.

Double step configuration

On Fig-43 shows the laying of the deflecting cables 16 for the configuration of double-pitch blinds. As noted above, in these three figures and similar figures following them, the laying of the deflecting cables 16 and the position of the drums 182, 184 (in particular, to show the relative position of the attachment points of the ends of the deflecting cables 16 to the drums 182, 184) are shown relative to the corresponding the positions of the slats 14 of the blinds 120. For clarity, these views include, as part of, an end isometric view of the corresponding gear step mechanism 124 (with cladding 132 removed for clarity) to show orientation ubchatogo wheel 126 and step movement of the driven gears 130, 128 corresponding to the orientation of the deflecting drums 182, 184 and splines 14.

As explained earlier, the deflecting cables have a common designation of 16, but are additionally identified by the following indices:

- “a” for the first set of deflecting cables supporting the upper bars 14t in each pair;

- "b" for the second set of deflecting cables supporting the lower strips 14b in each pair;

- “f” for front deflecting cables located on the edge of the blinds facing the room;

- “r” for rear deflecting cables located on the edge of the blinds facing the wall (also applies to facing the window);

- "x" for the cord of the actuator, which is usually fixed to one of the front or rear deflecting cables 16.

41, the drums 182, 184 are in the neutral position (as a reminder, the neutral position refers to the position of the drums 182, 184 corresponding to the position of the driven gears 130, 128, in which they are aligned with the stepping gear 126 as shown in FIG. .32 and 33 with saddle sections 160 ready for engagement with a thickening 146 of the stepped gear gear 126) and with slats in the open position in a double pitch configuration. The first deflection cable 16af from the side of the room is laid counterclockwise around and fastened to the drum 182 from the side of the wall in the slotted hole 192af. The first deflecting cable 16ar from the side of the wall is laid clockwise around and attached to the drum 184 from the premises in the slotted hole 192ar. The second deflecting cable 16bf from the side of the room is laid counterclockwise around and fastened to the drum 184 from the side of the room in the slotted hole 192bf (not shown in FIG. 41, but visible in FIG. 42). Finally, the second deflecting cable 16br from the wall side is laid clockwise around and fastened to the drum 182 from the side of the wall in the slotted hole 192br (not shown in FIG. 41, but visible in FIG. 43). With this installation and configuration of the deflecting cables 16, the straps 14 are in the open position in a double-pitch configuration, as shown in FIGS. 41 and 29, when the drums and gears are in the neutral position.

42, when the stepping gear 126 rotates counterclockwise from a neutral position (by tensioning one of the two deflecting cords 24, which causes the deflecting mechanism 26 to rotate the deflecting shaft 28 'counterclockwise), the driven gear 130 is from the wall side (with the corresponding drum 182 connected to the driven gear 130 from the side of the wall by the deflecting shaft 28) only begins to rotate clockwise before its saddle section 160 abuts against the thickening 146 of the gear 126 of the stepwise moved I, counteracting any additional rotation of the driven gear 130 from the wall. Fig. 42 shows a condition where the attachment point 192af for the deflecting cable from the room 16af side of the upper bar 14t is shown to rotate only a few degrees in a clockwise direction, creating the necessary overlap between the adjacent pairs of bars 14 (as discussed above for the previous embodiment 10 implementation of the invention). Thus, the first front and second rear deflector cables 16af, 16br attached to the deflector drum 182 from the side of the wall remain essentially stationary.

However, when the stepping gear 126 rotates counterclockwise from the neutral position, the gear portion 162 of the gear unit 128 from the side of the gear engages the gear portion 140 of the gear wheel 126 of the stepping unit so that this gear unit 128 is from the room side (and corresponding drum 184 from the side of the premises) is rotated clockwise and continues to rotate in a clockwise direction, before its saddle section 160 abuts against the thickening 146 of the gear 126 incremental movement to prevent any additional rotation. The first deflecting cable 16ar attached to the deflecting drum 184 from the room side in the slot hole 192ar is wound onto the deflecting drum 184 from the side of the room, pulling up the edge facing the wall of the upper slats 14t. At the same time, the second deflecting cable 16bf is unwound from the drum 184 from the room side, lowering the bars 14b from the room side. The result is a configuration of the closed position of the slats 14 with the edge from the side of the room down, as shown in Fig. 42.

On Fig shows the position of the gears 126 of the stepped movement, driven gears 130, 128 and deflecting drums 182, 184 for louvres 14 of the blinds, deflected to the closed position in the configuration with the edge from the side of the room up. In this case, the stepping gear 126 rotates clockwise from the neutral position shown in FIG. 41. This causes the driven gear 128 from the side of the room to begin to rotate counterclockwise, but its saddle section 160 immediately abuts against the thickening 146 of the stepping gear 126, locking the driven gear 128 from the side of the room (and the corresponding deflecting drum 184) from any additional counterclockwise rotation arrows. As a result, the first rear and second front deflector cables 16ar, 16bf, which are attached to the drum 184 from the side of the room, remain essentially stationary. However, the driven gear 130 from the side of the wall and the corresponding deflecting drum 182 from the side of the wall rotate counterclockwise by several turns, raising the first front deflecting cable 16af when it is wound on the deflecting drum 182 from the wall, and lowering the second rear deflecting cable 16br when it is wound off the deflecting drum 182 from the side of the wall. The result is a configuration of the closed position of the slats 14 with the edge from the side of the room up, as shown in Fig. 43.

Alternative configuration

On Fig -46 shows an alternative laying deflecting cables 16 on the mechanism with two parallel drums, very similar to that described above, so that it is possible to deflect one section of the blinds in the closed position, while the other section of the blinds remains open. On Fig shows the following differences of these blinds and equipment blinds in the configuration of the double step of Fig. 41.

Instead of two sets of double-step ladder tapes on each deflecting unit, these blinds have a standard-step ladder configuration tape of one standard, including front and rear cables and cross cords 16r, 16f, 16t. It also has an actuator cable 16x attached to the rear deflecting cable 16r by a node 32 or a cord attachment part 32. The routing of these deflecting cables 16 is performed as described below.

The rear (wall-side) deflecting cable 16r is wound clockwise around the wall-side drum 182 and is attached to the wall-side drum 182 in the slotted hole 192r (not visible in FIG. 44, but visible in FIG. 46). The front (from the side of the room) deflecting cable 16f from the side of the room is wound counterclockwise around the drum 182 from the wall and is attached to the drum 182 from the wall in the slot hole 192f. The deflecting cable of the actuator 16x is wound clockwise around the deflecting drum 184 from the side of the room and is attached to the deflecting drum 184 from the side of the room in the slot hole 192x. In Fig. 44, the mechanism (the stepping gear 126, driven gears 128, 130, and deflecting drums 182, 184) is in the neutral position, and the slats 14 are all deflected to the open position.

In FIG. 45, the incremental gear 126 is rotated counterclockwise by the deflecting mechanism 26 and the deflecting shaft 28 ′, which rotates the driven gears 128, 130 (and the corresponding deflecting drums 182, 184) in a clockwise direction. The driven gear 130 from the side of the wall stops rotation almost immediately when its saddle section 160 is joined with the thickening 146 of the stepping gear 126, while the driven gear 128 from the premises (and the corresponding deflecting drum 184) continues to rotate several turns. This means that the front and rear deflector cables 16f, 16r do not stretch upward or release from their drum 182 for a substantial distance. However, the deflecting cable 16x of the actuator, which is attached to the deflecting drum 184 from the premises in the hole 192x, is wound on the deflecting drum 184 from the premises. This raises the actuator cable 16x and also raises the rear deflector cable 16r at point 32, where the actuator cable 16x is attached to the rear deflector cable 16r, as shown in FIG. The end result is the deflecting configuration of FIG. 45, where the upper section of the blinds remains open, while the lower section of the blinds is rejected into the closed position downward with the edge facing the room.

In Fig. 46, the stepping gear 126 is rotated clockwise from its neutral position (using the deflecting device 26 and the deflecting shaft 28 '), which rotates the driven gears 128, 130 (and their corresponding deflecting drums 182, 184) in the opposite direction clockwise. The driven gear 128 from the side of the room (and its corresponding deflecting drum 184) starts to rotate counterclockwise, and their additional rotation is immediately prevented when the saddle section 160 of the driven gear 128 from the side of the butt is joined with the thickening 146 of the stepping gear 126. The actuator cable 16x, which is attached to the deflecting drum 184 from the side of the room, thus remains essentially stationary.

The driven gear 130 on the wall side continues to rotate counterclockwise, causing the driven drum 182 on the wall side to also rotate counterclockwise. This causes the front deflecting cable 16f to wrap onto the deflecting drum 182 from the wall side, while the rear deflecting cable 16r is wound from the deflecting drum 182 from the wall side. However, since the actuator cable 16x is attached to the rear deflector cable 16r at the attachment point 32, and since the actuator cable 16x remains substantially stationary, the rear deflector cable 16r is lowered only for those trims that are above the attachment point 32. Under the attachment point 32, the actuator cable 16x holds onto the rear deflecting cable 16r, preventing it from lowering. Thus, the strips 14 above the anchor point are deflected to the closed position, with the edge from the side of the room up, while the remaining strips 14 are in a partially closed position at an angle of approximately 45 °.

It should be apparent to those skilled in the art that the location of the attachment points 32 relative to the rear deflection cable 16r affects the point where the “transition” occurs between the slats that are deflected to the closed position and those that remain deflected to the open position. It should also be obvious that when connecting the deflector cable of the actuator with the front deflector cable 16f instead of the rear deflector cable, as shown here, the blinds will deviate into the closed position under the transition point in the edge position from the room side up instead of the position with the edge side premises down, shown in Fig.45.

Pleated appearance configuration

Figures 47-49 show an alternative routing of deflecting cables for configuring blinds with pleated appearance. On Fig there are no differences in equipment between the configuration with the appearance with pleating and the configuration of the double step of Fig. 41. The only difference is the laying of the deflecting cables 16.

The front deflecting cable 16af of the upper slats 14t is wound clockwise around the deflecting drum 184 from the side of the room and is attached to it at a point 192af. The rear deflecting cable 16ar of the upper slats 14t is wound counterclockwise around the deflecting drum 182 from the side of the wall and fastens to it at 192ar. The front deflecting cable 16bf of the lower strips 14b is wound counterclockwise around the deflecting drum 184 from the side of the room and is attached to it at 192bf. Finally, the rear deflecting cable 16br of the lower strips 14b is wound clockwise around the deflecting drum 182 from the wall and is attached to it at a point 192br.

As in the case of the double-step blinds shown in FIG. 41, the pleated appearance of FIG. 26 also starts with the planks 14 in the double-step configuration when the mechanism is in the neutral position, as shown in FIG. 47. In FIG. 48, when the deflecting shaft 28 ′ rotates clockwise, it drives the incremental gear 126 to rotate clockwise, which causes the driven gears 128, 130 (and their deflecting drums 182, 184) to rotate counterclockwise. The driven gear 128 from the side of the room and the corresponding deflecting drum 184 from the side of the room almost immediately stops from additional rotation when the saddle section 160 of the driven gear 128 from the side of the room is joined with the thickening 146 of the stepping gear 126. Therefore, the front deflecting cables 16af, 16bf, which are attached to the deflecting drum 184 from the side of the room, remain essentially fixed, and the front edges of the strips 14t, 14b remain essentially fixed.

The driven gear 130 from the side of the wall and the corresponding deflecting drum 182 from the side of the wall continue to rotate counterclockwise, making several revolutions. In this case, the first rear deflecting cable 16a is wound onto the deflecting drum 182 from the wall side, while the rear deflecting cable 16br is wound from the deflecting drum 182 from the wall side, causing the rear edge of the upper slats to rise and the rear edge of the lower slats to lower, resulting in pleated the view shown in Fig. 48, with upper slats 14t tilted down by the edge from the side of the room, lower slats 14b tilted up by the edge from the side of the room.

On Fig shown blinds with the appearance of pleating Fig, but rejected into a closed position in the opposite direction. In this case, the deflecting shaft 28 'is rotated from the neutral position by turning the step gear 126 counterclockwise and turning the driven gears 128, 130 clockwise. Since the driven gear 130 from the side of the wall stops rotation almost immediately when its saddle section 160 mates with the thickening 146 of the stepping gear 126, only the driven gear 128 from the side of the room and the corresponding deflecting drum 184 continues to rotate clockwise. In this example, since the first and second rear deflecting cables 16a r and 16br are attached to the deflecting drum 182 from the wall side, and since the deflecting drum 182 does not rotate from the wall side, the rear (wall side) edges of the upper and lower strips 14t, 14b remain essentially motionless. At the same time, the front deflecting cable 16af of the upper slats 14t is wound onto the deflecting drum 184 from the side of the room, and the second front deflecting cable 16bf of the lower slats 14b is wound from the deflecting drum 184 from the side of the room, thereby raising the front edge of the upper slats 14t and lowering the front the edge of the lower planks 14b, creating the pleated appearance shown in FIG. 49, with the upper planks in a position with a raised edge on the side of the room and with the lower planks in the position with a lowered edge on the side of the room.

Although several embodiments of the invention have been shown and described, it is understood that it is not practical to describe all possible variations and combinations that may be practiced within the scope of the present invention. It will be apparent to those skilled in the art that modifications to the embodiments of the invention described above can be made without departing from the scope of the invention indicated in the claims.

Claims (25)

1. The mechanism of the deflecting device for deflecting coatings for architectural openings, comprising: a deflecting shaft having a first axis of rotation; a drive transmission element mounted rotatably in the first and second directions with a deflecting shaft; first and second driven drums driven by a drive gear; the first and second deflecting cables, wherein said first deflecting cable is connected to the first driven drum and the second deflecting cable is connected to the second driven drum so that said first and second deflecting cables are raised and lowered when the respective driven drums rotate; means for stopping the rotation of the first drum when bringing the second drum into rotation; and means for stopping the rotation of the second drum when the first drum is rotated. 2. The mechanism of the deflecting device for deflecting coatings for architectural openings according to claim 1, in which the drive transmission element is a drum driving element mounted to rotate around a first axis of rotation, and includes first and second leading surfaces; moreover, the first and second driven drums are mounted for rotation around the first axis; in which rotation of the deflecting shaft and the driving member of the drum in a first direction causes the first driving surface of the driving member of the drum to rotate the first driven drum, and rotating the driving member of the drum in the opposite direction causes the second driving surface of the driving of the drum to rotate the second driven drum; and further comprises a spring connected to both the first and second driven drums and biasing the first and second driven drums into contact with the first and second drive surfaces, respectively. 3. The mechanism of the deflecting device for deflecting coatings for architectural openings according to claim 1, in which one of the first and second deflecting cables is an actuator cable, and further comprising a third deflecting cable that is part of the ladder belt, and the actuator cable is attached to the third deflecting cable. 4. The mechanism of the deflecting device for deflecting coatings for architectural openings according to claim 1, further comprising: a casing supporting said first and second driven drums rotatably, at least one restrictive stop of the casing and at least one , on one of the aforementioned first and second driven drums a restrictive stop of the drum is made, interacting with a restrictive stop of the casing to stop the rotation of the corresponding driven drum in at least one direction and, while allowing the continued rotation of the other of the aforementioned driven drums. 5. The mechanism of the deflecting device for deflecting coatings for architectural openings according to any one of claims 1 to 4, in which the drive transmission element is a drive gear mounted rotatably around the first axis and further comprising a first and second driven gears mounted for rotation with the first and second driven drums, respectively, wherein the first driven gear and the first driven drum are rotatably mounted about a second axis parallel to the first axis, and the second driven the stubble and the second driven drum are rotatably mounted about a third axis parallel to the first axis. 6. The mechanism of the deflecting device for deflecting coatings for architectural openings, comprising: a first and second deflecting drums mounted to rotate around separate parallel to the first and second axes, respectively; the first and second deflecting cables, wherein the first deflecting cable is connected to the first deflecting drum, and the second deflecting cable is connected to the second deflecting drum, so that each of the deflecting cables rises and lowers by rotation of its respective deflecting drum. 7. The deflecting device mechanism according to claim 6, further comprising a drive gear connected by a drive to the first and second deflecting drums and mounted to rotate around a third axis parallel to said first and second axes. 8. The deflecting device according to claim 7, further comprising a first driven gear mounted rotatably with a first deflecting drum and a second driven gear mounted rotatably with a second deflecting drum, wherein the first driven gear and the second driven gear are configured to clutch and are driven by a gear wheel, additionally containing a stop stop, which stops the rotation of one of the driven gears, while allowing the drive gear the second wheel to continue to rotate the other of the said driven gears. 9. The mechanism of the deflecting device for deflecting coatings for architectural openings according to claim 7, further comprising: a first driven gear mounted rotatably with a first deflecting drum; a second driven gear mounted rotatably with a second deflecting drum; wherein, on each of the first and second driven gears, a gear section and a substantially cylindrical smooth section are made, the smooth section including a saddle section; a driving gear including first and second substantially cylindrical sections, wherein a gear section and a smooth section are made in the first section, and an elevated thickening section is made in the second section; and in which, at certain angular positions, the gear portion of the drive gear engages with the gear sections of the first driven gear, wherein the raised thickening portion is mated with the saddle section of the second driven gear so as to drive the first driven gear while stopping the second driven gear, and at some other angular positions, the gear section of the drive gear engages with the gear sections of the second driven gear, while the raised portion of the thickening joins a saddle-section of the first driven gear so as to drive the second driven gear, thus stopping the first driven gear. 10. The mechanism of the deflecting device for deflecting coatings for architectural openings according to any one of claims 7 to 9, further comprising: a third and fourth deflecting drums axially aligned with the first and second deflecting drums, respectively; the first and second deflecting shafts, the first deflecting shaft connecting the first and third deflecting drums, and the second deflecting shaft connecting the second and fourth deflecting drums. 11. Blinds for selective coating of an architectural opening, comprising: an upper jumper; a plurality of planks suspended from an upper jumper, including a plurality of pairs of adjacent upper and lower planks; first and second staircases extending downward from the upper bridge, including a front deflecting cord, a rear deflecting cord and a plurality of transverse cords located between respective front and rear deflecting cords, in which the transverse cords of the first staircase carry the upper trims of each pair of adjacent upper and lower planks, and the transverse cords of the second staircase strip carry the lower planks of each pair of adjacent upper and lower planks, each of the deflecting cords having a first end; a deflecting shaft coupled by the drive to the first ends of the front and rear deflecting cords of the first and second staircases, in which the rotation of the deflecting shaft raises and lowers the front and rear deflecting cords of the first and second staircases to move the strips from the first position, in which the upper and lower the strips are stacked on top of each other in the open position of the double step, in the second position, in which the pairs of upper and lower strips are deflected to the closed position. 12. The blinds for the selective coating of the architectural opening according to claim 11, in which the second position comprises paired upper and lower trims deviated in the first direction selected from the group with the edge from the side of the room up and with the edge from the side of the room down. 13. The blinds for the selective coating of the architectural opening according to claim 11, in which the second position comprises upper slats deviated in the first direction, selected from the group by the edge from the side of the room up and the edge from the side of the room down, and lower slats rejected in the second direction, opposite to the first, to form a pleated appearance. 14. The blinds for selective coating of the architectural opening of claim 12, wherein rotating the deflecting shaft to raise and lower the deflecting cords also moves the planks to a third position, in which the paired upper and lower planks deviate to a closed position in a second direction that is opposite to the first direction . 15. Blinds for selective covering of an architectural opening according to any one of claims 11-14, wherein the first ends of the front and rear deflecting cords of the first and second ladder tapes are attached to the rotating drums by a driven deflecting shaft and wound on and off from their respective rotating drums when rotation of the drums. 16. The blinds for selective coating of the architectural opening of claim 15, wherein there are at least two of said rotating drums driven by a deflecting shaft with a front deflecting cord of a first ladder belt attached to the first of said rotating drums and with a rear deflecting cord a first ladder tape attached to the second of said rotary drums. 17. The blinds for selective coating of the architectural opening according to clause 16, in which the front deflecting cord of the first staircase tape is attached to one of the first and second rotating drums, and the rear deflecting cord of the second staircase tape is attached to the other of the first and second rotating drums. 18. The blinds for selective coating of the architectural opening of claim 15, wherein the rotating drums include first and second rotating drums, further comprising means for stopping the first rotating drum when rotating the second rotating drum and means for stopping the second rotating drum in rotation of the first rotating drum. 19. The blinds for selective coating of the architectural opening according to clause 16, in which the rotating drums include a first and second rotating drums, further comprising means for stopping the first rotating drum when rotating the second rotating drum and means for stopping the second rotating drum when rotating the first rotating drum. 20. The blinds for selective coating of the architectural opening of claim 17, wherein the rotating drums include first and second rotating drums, further comprising means for stopping the first rotating drum during rotation of the second rotating drum and means for stopping the second rotating drum in rotation of the first rotating drum. 21. A method for selectively rejecting the louvre strips, comprising the steps of: hanging a plurality of planks to the upper lintel by means of the first and second staircases, the planks including a plurality of pairs of adjacent upper and lower planks, each of which includes a front deflecting cord, a rear deflecting cord and a plurality of transverse cords in which the transverse cords of the first ladder strip carry the upper trims of each pair of adjacent upper and lower trims, and e cords of the second ladder tape is carried lower slats of each pair of upper and lower adjacent slats, each of the deflecting cords has a first end; attaching the first ends of the front and rear deflecting cords of the first and second staircases to a plurality of rotating drums; and rotate the deflecting shaft to drive the rotation of the rotating drums to move the planks from the first position in which the adjacent upper and lower planks are stacked on top of each other in the open double-step position, to the second position in which the pairs of upper and lower planks are deflected into the closed position. 22. The method for selectively rejecting the louvre strips according to claim 21, wherein the second position includes upper and lower laths of each pair rejected in a first direction selected from the group with the edge from the side of the room up and with the edge from the side of the room down. 23. A method for selectively rejecting the louvre strips according to claim 21 or 22, further comprising the step of: turning the deflecting shaft to rotate the drums to move the planks to a third position, in which the upper and lower planks of each pair are deflected to the closed position a second direction opposite the first direction. 24. A method for selectively rejecting the louvre strips according to claim 21 or 22, wherein the second position includes upper planks of each pair deflected in a first direction selected from the group with the edge from the side of the room up and with the edge from the side of the room down, and the lower slats of each pair are deflected to the closed position in a second direction opposite to the first direction to form a pleated appearance. 25. The method for selectively rejecting the louvre strips of claim 23, wherein the second position includes upper and lower laths of each pair rejected in a first direction selected from the group with the edge from the side of the room up and with the edge from the side of the room down, and the lower slats of each pair are deflected to the closed position in a second direction opposite to the first direction to form a pleated appearance.

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