DE102006002830A1 - Motorized opening mechanism used with e.g. swing and tilt window, includes U-shaped spring assembly acting on surfaces of connecting section - Google Patents

Abstract

Two oppositely-acting spring forces from a spring assembly act upon the connecting section. This is acted upon by a holding arm (17), to operate the connecting section assembly. The spring assembly is formed by a U-spring (85). This is mounted to pivot on the opening arm (15). The U-spring has two arms (86, 87) forming its limbs, with a section connecting them. A connecting section has two surfaces engaging the arms of the U-spring. These have different spacings from the point of rotation of the swinging connecting section.

Description

The The invention relates to an opening device for a locking device with at least one drive rod element having tilting wing, in particular Tilt-wing, a window, a door or the like, with a base part attachable to the frame, on which an actuatable by means of a motor drive device Ausstellschere is stored, which has a stay and a support arm and the one operable Having connector assembly on the extension arm, wherein the link assembly having a pivotable link and with the drive rod element automated connectable and automated is separable from this.

A Ausstellvorrichtung of the type mentioned goes out of the DE 101 570 490 C1 out. With the help of this display device is attacked on an espagnolette element, in particular on a locking pin of a drive rod, the wing fitting of a tilt wing or turn-tilt wing of a window, a door or the like to unlock the wing by displacement of the locking pin and then by means of motor to shift a Ausstellschere the Ausstellvorrichtung in Kippöffnungsstellung motor. By motorically retracting the Ausstellschere the wing can be moved from the tilted position back into the closed position and then lock motorized. Since the release device has a linkage assembly by means of the locking pin is automatically connectable and automatically separated, the wing can also manually, for example, by turning the handle of a fitting mechanism that acts on the he mentioned drive rod, unlock and open and close and lock again. It can - depending on the blade training - a Kippöffnungsstellung or a Kippöffnungsstellung and rotational opening position are brought about manually. In the manual mode, the linkage assembly is not coupled to the striker. In motorized mode, the clutch takes place to unlock or lock in order to perform the Kippöffnungsbewegung and also to bring about the tilt-closing movement. The known Ausstellvorrichtung has been proven, but is structurally designed relatively complex.

Of the Invention is the object of a Ausstellvorrichtung of to create the aforementioned type, the functionally reliable design with simple design is.

These Task is inventively characterized solved, that the link of two opposing spring forces of a Spring arrangement is applied, which is used to actuate the linkage assembly is acted upon by the support arm. The Ausstellschere the Ausstellvorrichtung invention accordingly has a pivotable Open arm to the tilting opening movement and the tilt-closing movement of the grand piano to induce motor. The required pivoting of the stay is done by end, motor displacements of bearing points on the extension arm and on the Arm. The motor drive device displaced at least one of the mentioned Bearing points with the result that this is due to the scissor construction the extension arm swings out or pivots in. To operate the Linkage arrangement is preferably carried out a relative displacement between the arm and the extension arm, whereby the support arm, the linkage assembly operated by that he acts on the spring arrangement. The spring arrangement acted upon the connecting member with two opposing spring forces, wherein a resultant spring force does not pass through the link the arm of successful imposition (non - imposition) in a preferential position urges or biased, in particular in its closed position. Charged the Holding arm, the spring assembly, so by the application of the resulting Spring force influenced such that it is the link in shifting or biasing another preferred position, in particular in the open position. In the open position, the drive rod element be captured or released; in the closed position the drive rod element remains trapped or there is no drive rod element together with the connecting link.

To a development of the invention, it is provided that the spring arrangement is formed by a leg spring. The leg spring preferably has two legs, with which the two opposing spring forces very easy to realize.

To a development of the invention it is provided that the leg spring U-shaped is trained. It is therefore a hairpin spring.

A development of the invention provides that the leg spring is pivotally mounted on the extension arm. In particular, it has two legs forming the legs and a web connecting the arms. The pivotal mounting of the leg spring is formed on the web, that is, the leg spring is in the region of its web pivotally gela siege on the stay of Ausstellschere. By their interaction with the also pivotally mounted on the extension link and taking into account the two opposing spring forces, the aforementioned preferred position of the connecting member, wherein the preferred position is limited in particular by means of a pivot stop. The other, above-mentioned preferred position may be limited by a pivot stop of the connecting member.

For the interaction of leg spring and link, the link has two working surfaces for the Arms of thigh feather on. The two arms of the leg spring lie in the undisturbed Condition with bias against the attack surfaces and effect by the resulting resulting force is the one priority, especially closed position of the connecting link.

There the two attack surfaces far away from the pivot point of the pivotable Link are and / or the lengths of extending to the attack surfaces Arms of the leg spring are different sizes, there is a pivoting the connecting member in the direction of the preferred position, in particular Closed position.

at the connecting member is in particular a pivotable Fishing hook with which the drive rod element is trappable.

The Leg spring is preferably made of elastic material, in particular Plastic. In particular between the arms of the leg spring a compression spring may be arranged so that the arms of the leg spring have to apply no or only a small spring force itself.

To a development of the invention it is provided that the attack surfaces of the Link on the side edges an open-edged recess or projections, in particular on sides of projections, are formed of the connecting member. In particular, the Both arms of the leg spring between the side edges of the open-edged recess or between the mentioned projections and practice so the margins or on the projections corresponding forces out.

It is advantageous if the connecting member has a hook-shaped end and that the hook-shaped End on one side of the pivot point of the link and the attack surfaces lie on the other side of the pivot point of the link. Both the hook-shaped End as well as the two attack surfaces are each by far arranged to the fulcrum of the link.

Of the Retaining arm has an urging surface, which with the linkage assembly for their operation interacts. The holding arm exercises one Double function, on the one hand because of the scissors construction the Ausstellschere allows swiveling and pivoting and on the other hand the operation the linkage arrangement is used.

The actuating area is preferably on a projection, in particular on a side projection, formed of the support arm. It can be provided that the actuating area of the holding arm applied to one of the arms of the leg spring. It is therefore sufficient, only on this one arm and not on both Poor arms of the thigh pen. The admission takes place preferably on the outside of the arm.

To a development of the invention is - as already mentioned - provided, that the holding arm for actuating Loading the linkage assembly slidably and to Swiveling the extension arm pivotally connected to the stay is. For operation the linkage arrangement is a relative displacement between Retaining arm and extension arm, wherein the support arm, the linkage assembly acted upon and thereby actuates the link assembly, in particular in order to automatically connect to the drive rod element, in particular locking pin, make or automatically disconnect this connection.

To a development of the invention is provided that the connection between the arm and the extension arm of at least one, preferably of two slot / pin connection (s) is / are formed. By the at least one slot / pin connection is both a sliding bearing as well as a pivot bearing between the arm and the extension arm realized, wherein the arrangement is preferably made such that these two types of bearings do not work simultaneously, but successively, i. does the sliding storage, so can not pivot carried out become; is the Verschwenklagerung in function, so can be holding arm and do not move the extension arm relative to each other.

According to a development of the invention, it is advantageous for the holding arm and the extension arm to form two parts, wherein a first pin is fastened to a first part, which cooperates with a first slot of the other, second part and a second pin is attached to the second part, which cooperates with a second slot of the first part. As a result, the holding arm and the extension arm are displaceably connected to one another via two slot / pin connections in order to achieve the abovementioned displaceability and pivotability, wherein each of the parts has a pin and each of the teeth le having a slot, wherein at least one pin is formed as a mushroom pin to form a rear handle to the other part and to keep in this way the two parts while movable, but captive to each other.

A Development of the invention provides that the first or the second Slot a part-circular Section for having the pivoting movement of the extension arm. In particular, it is provided that the first or the second pin in the center of the pitch circle of the part-circular section lies. Preferably, one of the elongated holes is rectilinear educated. The other has a rectilinear section and the mentioned, himself at the rectilinear section subsequent part circular section on. Along the straight-line long hole arrangement can be the mentioned shifting realize, that is, the pin or pins run along when moving the straight-line slot arrangement. If a pin enters the part-circular section the corresponding slot, so the other pin is preferably in an end region of the corresponding other slot. Here can now by pivoting the parts relative to each other of a pin through the part-circular Move section while the other Zap fen is located in the pivot center, i. around him the pivoting movement is performed.

It is advantageous if the first pin about in extension the second slot and when the second pin about in extension the first slot is located.

Of the Retaining arm preferably has a loading surface, which with the link assembly for their operation interacts. This loading area occurs accordingly corresponding member of the link assembly and thereby causes the displacement of a link to the locking pin catch or release the drive rod assembly.

The Drawings illustrate the invention with reference to an embodiment, and that shows:

1 a view of a turn-tilt window with Ausstellvorrichtung,

2 a motor drive device for driving a Ausstellschere the Ausstellvorrichtung,

three to 7 the scissors in different positions and

8th a detailed view of the front area of the Ausstellschere.

The 1 shows a turn-tilt window 1 that has a frame 2 and a turn-tilt wing three having. The turn-tilt wing three is with a locking device 4 provided, the at least one drive rod 5 having, with at least one drive rod element 6 is provided, which as a locking pin 7 is trained. The drive rod 5 can be manually displaced by means of a handle handle (not shown). The place where the grip handle is located is with arrow 8th characterized. The at least one locking pin 7 works with a strike plate, which is on the frame 2 located and its position by means of the arrow 9 is hinted at. Preferably, at least two locking pins are used. The locking device 4 belongs to a fitting 10 with, in a manual way, the turn-tilt window 1 can be locked and unlocked by the at least one locking pin 7 enters or exits the strike plate. For this purpose, with the handle handle, not shown, the drive rod 5 shifted accordingly. Furthermore, the turn-tilt wing can be three tilt both around a horizontal axis - as in 1 shown - as well as to open a vertical axis (turn open). In addition to the fitting 10 is a display device 11 present, which is a base part 12 that is on the frame 2 is attached. The opening device 11 owns a cut-out scissors 13 with which the turn-tilt wing three unlocked and from the closed position to the in 1 shown tilting position can be spent and with - from the tilted position - again the closed position of the turn-tilt wing three can be brought about and then a lock can be performed. This show-shears function is done by means of a motor drive device 14 that are in the base part 12 located. The arrangement is such that both a manual and a motorized turn-tilt-wing displacement is possible. Will the turn-tilt window 1 Manually operated, the following functions can be brought about manually: locking, unlocking, rotary opening, tilt opening and closing from the rotary opening as well as closing from the tilt opening. By means of the display device 11 can cause the following motor conditions: unlocking, locking, tilting and closing from the tilted opening position.

For automatically connecting the scissors 13 with the locking device 4 of the turn-tilt wing three is one on a stay arm 15 the scissors 13 arranged linkage assembly 16 provided on the drive rod element 6 that is the locking pin 7 , attacks. This connection can be separated automatically, that is, there is between link assembly 16 and locking pins 7 in certain operating positions no connection. Should the turn-tilt wing three be operated manually, so there is no connection. If the operation of the turn-tilt wing three by means of the motor drive device 14 carried out, the mentioned connection is made automatically. Of the 1 is further removed that the Ausstellvorrichtung 11 a holding arm 17 has, wherein retaining arm 17 and extension arm 15 the scissors 13 form.

The 2 shows some components of the base located in the open position 12 the Ausstellvorrichtung 11 , On a base plate 18 is a motor drive device 14 forming electric motor arranged, which is a threaded rod 19 can turn both left and right. A nut 20 that with the threaded rod 19 meshes, is through the operation of the drive device 14 depending on the direction of rotation according to the double arrow 21 moved to and fro. With the nut 20 is rotatable one end area 22 of the extension arm 15 connected. An end area 23 ' of the support arm 17 is rotatable with the base plate 18 connected (in 2 not identifiable in detail). In the 1 and 2 is also the concrete design of the linkage assembly 16 not shown.

Of the 2 can be seen that by the operation of the motor drive device 14 the scissors 13 can be retracted and extended so that one of the linkage assembly 16 held locking pin 7 the drive rod 5 of the turn-tilt wing three (in 2 not shown) is mitverlagert accordingly to bring about a Kippöffnungsstellung or a closed position from the Kippöffnungsstellung.

According to the three to 7 has the support arm 17 the scissors 13 a first slot 23 on by a first pin 24 , the extension arm 15 is attached, is guided. At the arm 17 is a second pin 25 fastened in a second slot 26 of the extension arm 15 is guided, wherein a rear view, not shown, shows that the second pin 25 is designed as mushroom pin with a thickened head, so that arm 17 and extension arm 15 movable but captive.

Of the three it can be seen that the first slot 23 has a straight course and in the direction of the longitudinal extent of the middle zone in the S-shaped, but otherwise rectilinear support arm 17 extends. The first slot 23 is between a free end 28 of the support arm 17 and the second pin 25 , In the end area 23 ' of the support arm 17 there is a mushroom cone 29 ' , which is pivotable and optionally movable with the base plate 18 ( 2 ) connected is.

The second slot 26 has a straight line section 29 up, between a bend 30 of the extension arm 15 and the first pin 24 lies and in the longitudinal extension of the extension arm 15 extends. At the straight-line section 29 closes a part-circular section 31 the second slot 26 transitionless, being in the center of the imaginary circle of the part-circular section 31 the first pin 24 lies. As can be seen, the second pin 25 the entire second slot 26 go through, so in the straight-line section 29 or in the part-circular section 31 are located. He is in the straight-line section 29 , so are arm 17 and extension arm 15 slidably guided together, these two arms are approximately parallel to each other. Is the second pin 25 in the part-circular section 31 , so pivot arm 17 and extension arm 15 around the first pin 24 relative to each other. In the mentioned shifting takes place - as will be described in more detail below - a coupling or decoupling of the linkage assembly 16 with the locking pin 7 ; in the mentioned pivoting is the Ausstellschere 13 retracted or extended to the turn-tilt wing three to tilt open or close from the Kippöffnungsstellung. In the linkage assembly 16 opposite end region 32 has the stay arm 15 a bearing bore 33 for storage on the nut 20 on.

The free end 44 of the extension arm 15 has a forked end 45 with an open-edged recording 46 on ( 6 ), wherein in the closed position of the fishing hook 41 with its hooked end 47 with one fork 48 the forked end 49 about covers ( 5 ). The hooked end 47 has however an extension 49 which, according to the presentation of the 5 the open-edged recess 46 closes beyond its middle and for the capture of the lock pin 7 the drive rod 5 forms a rear grip.

The linkage assembly 16 has a spring arrangement 80 on that with a link 40 the linkage assembly 16 interacts. The connecting link 40 is as a catch hook 41 formed around a bolt 42 pivotable on the extension arm 15 is stored. The bolt 42 accordingly forms a fulcrum 81 for the fishing hook 41 , On one side of the axis of rotation is the hook-shaped end 47 of the fishing hook 41 , On the other side is the spring assembly 80 positioned. To limit the pivoting movement of the link 40 around the pivot point 81 owns the fishing hook 41 a hole 82 into which a sleeve 83 is pressed captive, which is up in a slot 84 sticks out in the arm 15 is trained. The arrangement is such that thereby a slewing limitation so rea Lisiert is that of the catch hook 41 At maximum deflection two end positions can be taken, and that one end position according to three , which represents a closed position, and the other position according to 6 , which is an open position of the catch hook 41 forms.

The spring arrangement 80 has a leg spring 85 on, which is designed U-shaped like a hairpin spring. The thigh feather 85 has two arms forming the thighs 86 and 87 and one's arms 86 . 87 connecting footbridge 88 , A hole in the bridge 88 gets from a mushroom pin 89 interspersed, the on the stay 15 is attached to the storage so formed 90 the spring arrangement 80 a pivoting movement corresponding to the double arrow 91 to enable.

From storage 90 seen from the length of the two arms 86 and 87 different sized. The arm 86 is longer than the arm 87 educated. Between both arms 86 and 87 there is a compression spring 92 that has a spreading force on the two arms 86 and 87 exercises. To have enough space for the compression spring 92 to switch, the arm points 86 a U-shaped section 93 on, in which the compression spring 92 engages with one of its ends. The other end of the compression spring 92 Leans on the inside of the arm 87 from. Due to the compression spring 92 it is not necessary for the arms 86 and 87 themselves are elastic, since an elasticity is sufficient and the spring force of the compression spring 92 is applied. Alternatively, it is also possible that the leg spring 85 even spring force developed by the compression spring 92 is supported.

The two ends of the arms 86 and 87 act with the link 40 together. For this purpose are - diametrically to the fulcrum 81 the hook-shaped end 47 opposite - on the link 40 two projections 94 and 95 between them an intervention zone 96 train as a free space. In this intervention zone 96 grab the two arms 86 and 87 the thigh feather 85 such that they have two attack surfaces 97 and 98 of the connecting link 40 apply, with the two attack surfaces 97 and 98 on the insides of the two projections 94 and 95 lie. Because the arms 86 and 87 the thigh feather 85 are different lengths are also the projections 94 and 95 different lengths, with the longer arm 86 a shorter lead 94 and the shorter arm 87 a longer lead 95 assigned. As a result, the two attack surfaces lie 97 and 98 different from the pivot 81 of the connecting link 40 away. There on both of the thigh feather 85 a force is exerted, the lever arms due to the different layers of the attack surfaces 97 and 98 However, are different lengths, results in accordance three a preferred position for the fishing hook 41 such that it by the two opposing spring forces of the spring assembly 80 is displaced due to a resulting torque training in the closed position.

According to three has the support arm 17 an admission area 43 on that with the linkage assembly 16 can interact to their operation. The loading area 43 is at a head start 99 formed, which has a side projection of the support arm 17 forms. It is close to the mushroom cone 29 ' So in the end 23 ' , on the side of the support arm 17 ,

Based on three to 7 is intended below on the operation of the Ausstellvorrichtung 11 be discussed in more detail. It will according to 1 assumed that the fishing hook 41 the locking pin 7 the turn-tilt window 1 caught, being the turn-tilt wing three in closed position, but there is no locking. To now lock the fitting of the turn-tilt window 1 to induce moves the motor drive device 14 - based on the position of three - the extension arm 15 relative to the support arm 17 in the direction of the arrow 100 ( 4 ), so the impact area 43 of the projection 99 against the outside of the arm 87 occurs with the consequence that the arm 87 evades and no longer the lead 95 of the fishing hook 41 applied. Nevertheless, the locking pin 7 in the locked position in the direction of the arrow 100 pulled because he is due to the extension 49 the hook-shaped end 47 the locking pin 7 remains trapped. A pivoting movement of the catch hook 41 in open position can therefore not take place.

The 5 shows an end position in which the link 40 the locking pin 7 maximum far in the direction of the arrow 100 has pulled, so the locking pin 7 has reached its Endverriegelungsstellung and consequently the turn-tilt wing three the turn-tilt window 1 is locked.

Now reverses the motor drive device 14 automatically such that the stay arm 15 a little bit in the direction of the arrow 101 relative to the support arm 17 is moved, with the result that the extension 49 a distance to the locking pin 7 receives, due to the resilient pressing of the arm 86 to the projection 94 the fishing hook 41 pivots in the open position, so that the locking pin 7 is released. Due to the release of the lock pin 7 is now also a manual operation of the turn-tilt window 1 possible, that is, it can be moved manually in Kippöffnungsstellung or rotary opening position, closed again and also manually locked again.

Should now subsequently - according to 7 - from the position according to 6 an automatic, that is motorized tilt opening of the turn-tilt window 1 be brought about, so is the motor drive device 14 the extension arm 15 continue in the direction of the arrow 101 shifted, causing the forked end 45 the locking pin 7 initially moved in the unlocking direction, wherein the loading surface 43 of the projection 99 the spring arrangement 80 relieved, so that again the closed position of the fishing hook 41 adjusts and now in the course of further movement of the second pin 25 in the part-circular section 31 the second slot 26 can enter and the two arms 15 and 17 take a scissor position, with the result that the stay arm 15 swings it out while holding the turn-tilt wing three - held on its locking pin 7 - Moved from the closed position to the Kippöffnungsstellung. To close a corresponding counter-rotating movement is performed, so that the extension arm 15 pivots back in and while the turn-tilt-wing three takes along until it has reached its closed position. Then the lock is then brought about by motor, as already described above.

da L4 größer als L3 ist, ergibt sich, dass F1 größer als F2 ist, wobei L3 der Abstand zwischen der Lagerung 90 und der Angriffsfläche 98 und L4 der Abstand zwischen der Lagerung 90 und der Angriffsfläche 97 und F1 und F2 die entsprechend wirkenden Kräfte gemäß 8 sind.The 8th illustrates the spring and lever ratios of the linkage assembly 16 , The attack surface 98 lies farther from the fulcrum 81 of the fishing hook 41 removed (distance L1) as the attack surface 97 (Route L2). Therefore, on the one hand makes the attack surface 98 a larger stroke than the attack surface 97 at the same angle of rotation of the fishing hook 41 , On the other hand produces the leg spring 85 a torque around the mushroom pin 89 or around the camp 90 , that is, the force F1 is in the area of the attack surface 98 larger than in the area of the attack surface 97 (Force F2). The following relationship applies: F1 · L3 = F2 · L4

since L4 is greater than L3, it follows that F1 is greater than F2, where L3 is the distance between storage 90 and the attack surface 98 and L4 the distance between the bearings 90 and the attack surface 97 and F1 and F2 the corresponding acting forces according to 8th are.

Overall, it turns out that the two attack surfaces 97 and 98 Want to "wander apart", conditioned by the action of the leg spring 85 to want to relax. Overall, this leads to non-loading of the arrangement (projection 99 of the support arm 17 does not work) the catch hook 41 by the spring arrangement 80 is pushed in the direction of "to".

In the three is a position of the Ausstellschere 13 before, at the arm 15 and holding arm 17 approximately parallel to each other, wherein the first pin 24 in the first slot 23 and the second pin 25 in the straight-lined section 29 the second slot 26 are located. As explained, can be determined by means of 2 resulting drive device 14 the holding arm 17 relative to the extension arm 15 move so that the loading surface 43 of the projection 99 with the spring arrangement 80 interacts. The three . 4 . 5 and 7 show the catch hook 41 in closed and the 6 and 8th show the catch hook 41 in open position.

Of the three it can be seen that because of the offset 30 the extension arm 15 a deeper area 64 and a higher area 65 has, being in the deeper area 64 the linkage assembly 16 and in the higher area 65 the storage of the support arm 17 on the arm 15 located.

The The invention also relates to use in tilt-first windows (Tilt-and-turn window).

Claims (25)

Ausstellvorrichtung for a locking device having at least one espagnolette element having tilting wings, in particular turn-tilt wing, a window, a door or the like, with a base frame attachable to the base part, on which an actuatable by means of a motor drive Ausstellschere is mounted, the one Ausstellarm and has a support arm and having an actuatable link assembly on Ausstellarm, wherein the link assembly comprises a pivotable connecting member and with the drive rod element automatically connectable and automatically separated from this, characterized in that the connecting member ( 40 ) of two opposing spring forces of a spring arrangement ( 80 ), which is used to actuate the linkage arrangement ( 16 ) from the holding arm ( 17 ) is applied. Display device according to claim 1, characterized in that the spring arrangement ( 80 ) of a leg spring ( 85 ) is formed. Display device according to one of the preceding claims, characterized in that the leg spring ( 85 ) Is U-shaped. Display device according to one of the preceding claims, characterized in that the leg spring ( 85 ) pivotally on the extension arm ( 15 ) is stored. Display device according to one of the preceding claims, characterized in that the leg spring ( 85 ) two legs forming the legs ( 86 . 87 ) and a web connecting the arms ( 88 ) having. Display device according to one of the preceding claims, characterized in that the pivot bearing of the leg spring ( 85 ) at the pier ( 88 ) is trained. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the connecting member ( 40 ) two attack surfaces ( 97 . 98 ) for the two arms ( 86 . 87 ) of the leg spring ( 85 ) having. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the two attack surfaces ( 97 . 98 ) far away from the fulcrum ( 81 ) of the pivotable link ( 40 ) lie. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the lengths of up to the attack surfaces ( 97 . 98 ) extending arms ( 86 . 87 ) of the leg spring ( 85 ) are different in size. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the connecting member ( 40 ) a pivotable catch hook ( 41 ) for the drive rod element ( 6 ). Display device according to one of the preceding claims, characterized in that the leg spring ( 85 ) made of elastic material, in particular plastic. Display device according to one of the preceding claims, characterized in that the leg spring ( 85 ) between her arms ( 86 . 87 ) a compression spring ( 92 ) having. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the attack surfaces ( 97 . 98 ) of the link ( 40 ) at the side edges of an open-edged recess or on projections ( 94 . 95 ), in particular on the side of protrusions ( 94 . 95 ), the connecting link ( 40 ) are formed. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the connecting member ( 40 ) a hook-shaped end ( 47 ), and that the hook-shaped end ( 47 ) on one side of the fulcrum ( 81 ) of the link ( 40 ) and the attack surfaces ( 97 . 98 ) on the other side of the fulcrum ( 81 ) of the link ( 40 ) lie. Display device according to one of the preceding claims, characterized in that the holding arm ( 17 ) an admission area ( 43 ) connected to the linkage assembly ( 16 ) cooperates to their actuation. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the loading surface ( 43 ) at a projection ( 99 ), in particular on a side projection of the holding arm ( 17 ) is trained. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the loading surface ( 43 ) of the holding arm ( 17 ) one of the arms ( 86 . 87 ) of the leg spring ( 85 ). Ausstellvorrichtung according to claim 17, characterized in that the arm ( 87 ) of the leg spring ( 85 ) on its outside of the loading surface ( 43 ) of the holding arm ( 17 ) is applied. Display device according to one of the preceding claims, characterized in that the holding arm ( 17 ) for actuating the linkage arrangement ( 16 ) displaceable and for pivoting the Ausstellarms ( 15 ) pivotable with the stay arm ( 15 ) connected is. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the connection between the arm ( 17 ) and arm ( 15 ) is formed by at least one, preferably two slot-pin connection (s). Display device according to one of the preceding claims, characterized in that the retaining arm ( 17 ) and arm ( 15 ) form two parts, wherein on a first part a first pin ( 24 ), which is connected to a first slot ( 23 ) of the other, second part cooperates and on the second part, a second pin ( 25 ), which is connected to a second slot ( 26 ) of the first part cooperates. Display device according to one of the preceding claims, characterized in that the first or the second slot ( 23 . 26 ) a part-circular section ( 31 ) for the pivoting movement of the extension arm ( 15 ) having. Display device according to one of the preceding claims, characterized in that the first or the second pin ( 24 . 25 ) in the center of the pitch circle of the part-circular section ( 31 ) lies. Ausstellvorrichtung according to any one of the preceding claims, characterized in that the first pin ( 24 ) approximately in extension of the second slot ( 26 ) and that the second pin ( 25 ) approximately in extension of the first slot ( 23 ) lies. Display device according to one of the preceding claims, characterized in that the drive rod element ( 6 ) a locking pin ( 7 ).