FR2508988A1 - TAB LINK FOR PROFILES FRAMES, PARTICULARLY WINDOW AND DOOR FRAMES, AND THE LIKE - Google Patents

Abstract

TAB LINK FOR WINDOW FRAMES AND DOORS AND THE LIKE, COMPRISING GROOVES 5, 5, RUNNING THROUGH MITER CUT AREAS, MILLING IN PROFILES 1, 2 TO BE CONNECTED AND IN WHICH A KEYBOARD IS INSERTED 7 WHO COMES TO TIGHTEN THE PROFILES TOGETHER AND COMPRESSES THEM IN THE TAB PLAN. THIS TAB LINK CAN BE USED AS WELL FOR FULLY PLASTIC FRAMES AS FOR METAL FRAMES OR MIXED METAL-PLASTIC FRAMES.

Description

Miter connection for frames made of profiles, in particular

  window and door frames, and

others alike.

  The present invention relates to a link

  miter sound for frames made of profiles, in particular for window and door frames or

  others similar, comprising at least one inter-

  medium housed in a housing provided on the insides

  dull profiles to be connected from each miter angle.

  In a tab link of this type known to

  From patent DE-OS 24 41 969, the intermediate part

  re consists of an essentially flat body, which extends along the length of the miter edges and has at one end a point and at its other end a

  angular shaped notch this piece is inserted

  intermediate in a guide provided on the internal face of two profiles, which come to lean, of a window frame, so as to cover the miter slot,

  invisible from the outside of the frame

  face of the intermediate piece which covers the slit must be coated with a sealing compound to close

  the miter slot It is neither intended nor possible to ob-

  maintain, in the known device, a connection, both

  by the shape and by exerting an effort of the profiles.

  Since the forces which act in practice on a window frame, for example as a result of thermal stresses, wind and vortex loads, etc. are notable, the known intermediate part is not suitable,

  beyond its function as a metal sealing flap

  tee, to ensure sufficient mechanical recovery of the force It is also not possible to carry out mechanical compression, not authorized in such a frame, of the profiles against the miter cutting edges

to avoid a miter slot.

  In another miter connection according to the model registered in Germany 71 46 378, metal profiles serving as reinforcement are inserted in the hollow volumes of plastic profile, first assembled in a way

  loose, and fixed one under the other in these profi-

  plastic sheets For this purpose, in the hollow volumes of the reinforcing profiles of each miter angle, two separate intermediate pieces are inserted respectively, arranged at a certain lateral distance from each other and between which a

  counter key by an opening in the plastic frame

  only outside, from the side of the rebate of the frame, to compress the two intermediate pieces in the miter cut-out and to produce a friction connection between the reinforcing profiles Then one is welded to

  the other the plastic profiles at the miter angles.

  With this known miter connection, it is not possible to clamp the miter cutting edges of the internal reinforcement profiles against one another and therefore to avoid a miter slot. also neither planned nor possible to clamp the external plastic profiles against each other. To this is added that it is only possible to weld the plastic profiles by means of an expensive special welding process. cannot use the known butt welding process

using reflectors.

  The object of the invention is to create a mechanical miter link, simple and economically feasible, which can be of universal use as well for frames entirely made of plastic as for metal frames or mixed metal-plastic frames. and that

  prohibits the appearance of miter slots.

  Starting from a tab link of the men-

  tiated at the beginning, this object is reached by the means provided, as a housing, respectively a notch tending parallel to the miter edges of the two

  protl Lés and having strips of limited material

  both miter cutting surfaces or other supports; and as an intermediate piece at least one key which grips, both by its shape and by exerting an effort, the strips of material and which presses against one another the profiles to be connected along the line.

miter cutting gene.

  Thanks to the proposal according to the invention,

  has created an economical and secure tab link,

  so much, without expensive parts, to mechanically connect in-

  themselves frame profiles made entirely of plas-

  tick, avoiding a miter slot, for a very low mounting expense, so that in the case of these frame links, one can do without the usual welding This advantage appeared to be particularly important in the case of mixed frames for plastic-metal windows, for which it is not possible, due to their special construction structure, to weld the plastic frame by known methods

  so far Also the solution according to the invention guaranteed

  tit a defined distribution of efforts and a sufficient recovery from this point of view of internal efforts and

  external acting on the corners of the frame.

  a particularly regular distribution of forces is obtained if, according to a characteristic of the invention, the notches are designed in the form of

  grooves which extend substantially concomitantly

  continuous along the length of the miter edges Due to the fact that with the continuous grooves the conditions for the appearance of continuous bars are fulfilled at the same time

  uninterrupted material, we realize, when the cla-

  vette is laid, surface pressure regularly

  distributed over the edges of the miter cut.

  It is advisable for the grooves to grasp at least the internal walls, on the external face side of the

  3 S Frame (front view) of the profiles Because the grooves

  res and therefore necessarily the stop bosses are located in the immediate vicinity of the external miter cutting edges, an optimum distribution of forces is guaranteed in the immediate vicinity of these miter cutting edges and the formation of slots is practically excluded.

  tab visible in the corners of the frame.

  To make the miter connection even more rigid, it is proposed that opposite the groove provided in the internal wall of the external face of the frame is

  placed in parallel at least one second groove,

  cut in an intermediate wall provided inside

of the profile.

  It is advisable that the grooves have a T-shaped section. However, they can also have a U-shaped or dovetail-shaped section. According to another important characteristic of the invention, the grooves are produced by forming by removing material. In another embodiment of the invention, the grooves can be machined both in the assembled frames, already mounted and in the

  different profiles before assembling the frame.

  It is advisable for the grooves to start on the outer side of the rebate and end before the wall of the profile on the inner side of the rebate.

  variant of the above, they may also

  conversely, stop on the outer side of the rebate and end in front of the wall of the profile, inner side of the rebate In the case of several grooves in a miter angle, a combination of these embodiments

  is also possible In practice, we will plan to

  pectively the groove openings where they are most easily accessible for mounting and / or they interfere least optically in the

mounted frame.

  it is preferred that the key has bossa-

  stop ges connected by a core to form a single piece, arranged on both sides of the core projecting by

  relation to it and whose sections correspond es-

  in the groove section this makes it pos-

  a forced insertion into the grooves of the

  vette, in one piece The key should be made of a material harder than the material of the frame profiles It is advantageous that the length of the key is approximately equal to the length of the miter edges For increase the connection by the shape and by the friction between the key and the grooves, it is advisable more than the stop bosses,

  which are lodged in the grooves, of the key

  try notching profiling, acting in direction

  opposite to the direction of insertion of the key.

  To fill the entire length of the groove section, it is advantageous that the key has at its front end in the direction of insertion a contour adapted to the end of the groove and to its

  rear end a concave angular notch

  re. The key inserting into the grooves with a tight fit, it is advisable that the entry of the key formed between the stop bosses widens in section in its end zone forward in the direction of insertion this facilitates the sliding of the key on the strips of material, the key is

  centering itself in the grooves, during the process

  proper of its insertion, thanks to the guidance

precise and exact dimensions.

  To improve in particular the tightness of the miter joints it is advantageous that the key is

  more fixed in the grooves by an adhesive.

  Other characteristics and advantages of the invention will be better understood on reading the

  description which follows of several embodiments

  and with reference to the appended drawings in which: FIG. 1 represents a front view of a usual window frame; 2 shows in exploded perspective and on an enlarged scale an extract "A" of Figure 1 of a frame angle; 3 shows assembled, the miter angle of Figure 2; Figures 4, 5 show different other possible forms of section for the notches and keys, according to the section lines IV-IV and V-V of Figure 3; FIG. 6 represents a frame angle in exploded representation like FIG. 2 but with two notches and two keys. FIG. 7 represents the miter angle of FIG. 6 assembled, combined with an internal reinforcement frame linked by an angle d 'angle; Figure 8 shows a section along line VIII-VIII of Figure 7 Figure 9 shows in perspective view a

  profile section with two notches which pre-

  feel opposite entrances to each other; Figure 10 shows the key of Figure 2 with a notched profile; FIG. 11 represents the miter angle of a metal frame linked by a corner angle, in the assembled position, with a plastic frame attached to one side; Figure 12 shows a section along the

line XII-XII of figure 11.

  Figure 1 shows a window frame composed of the different profiles 1 to 4 which come

  lean against the mitered corners.

  The enlarged perspective representation, Figure 2, of the extract "A" of Figure 1, shows that the sections 1, 2, each have a guide 5, 6 in which one can insert in the direction of arrow 8 a intermediate piece, generally designated by 7,

  to make a connection between the two profiles Se-

  lon the invention the guides 5, 6 are formed of notch-

  forming them grooves 5 ′, 5 ″ and 6 ′, 6 ″, which extend parallel to the miter edges 9, 10, respectively of two profiles, leaning against one another 1, 2 and 2, 3 and 3, 4 and 4, 1 of each Par tab angle

  compared to the miter edges 9, 10, the notches formed

  mant grooves 5, 6 of two sections 1, 2 are respectively

  tively arranged symmetrically and can have the most varied cutting shapes, for example can be U-shaped (Figure 4),

  dovetail (Figure 5), T-shaped or otherwise.

  In all of the exemplary embodiments shown, the notches forming a groove are machined in the profile material in a working phase by removing material, for example by milling, planing, sawing, etc., machining during which, depending on the form of the tool used and according to each time the section of a profile, it is either only an internal wall 1 ', 2', or several internal walls 1 ', 2' and intermediate walls 1 ", 2" located one in face of the other inside the section of the profile which come into question While in the representation of Figures 2, 3, 5, 6, 7, 8 respectively two walls 1 ', 2' and 1 ", 2" are part of the notches 5, 6, the example of FIG. 4 simply shows a single notch forming

  groove on the external internal face 1 ', 2' of the

  yarns 1, 2 If the grooves are not

  provided that in one wall of the profiles, it is

  heavens to choose for this the inner wall which corresponds

  lays on the outer face, that is to say on the face seen from the profiles, so that the notch groove is as close as possible to the outer miter edge 9, 10 The grooves 5, 6 can also be milled in the already assembled frames This has the advantage of making it possible to machine all the grooves of the two profiles which come to rest in

  the miter angle and thus guarantee a high precision

  Machining sion As a variant, however, it is also possible to machine the grooves in the various front profiles.

assembly of the frame.

  As can be seen in the drawing, the grooves 6 extend essentially continuously over the length of the miter edges and are limited, side directed towards the miter cutting plane, by

  material bars 11, ll ', 12, 12', also

  continuous, which allow using an intermediate piece

  re 7 a link both in form and in exer-

  erecting an effort, profiles in each angle of

glet.

  It is a key that is inserted into the

  grooves 5, 6 of the profiles, which serves as an intermediate piece

  diaire 7 This key, preferably formed of a

  single piece (Figures 2, 4, 5, 6, 10) has bos-

  stop wise 13, 14, 15, 16 (figure 2) and 13 ', 14' (figure 4) and 15 18 (figure 5) whose shape

  cut essentially corresponds to the contours of sec-

  tion of the grooves and which are respectively connected to each other by a core 19 22 The key is

  made of a harder material than that which is made

  bricked the profiles and it is slightly under

  tolerated with respect to the grooves, so that when it is introduced into the grooves, a cut is made in the profile material, which guarantees an absolutely solid and secure connection,

-2508988

  possible miter slots on the front views of the

  yarns being practically excluded The stop bosses of the key, which protrude beyond the core, further include, as can be seen in FIG. 10, a notch-shaped profiling, for example of teeth

  saw 23, which acts in the opposite direction to the direction of

  setting The fitting of the key in the grooves is facilitated by the fact that the inlet 24 is widened in its front end region, in the direction of

  the insertion, relative to the guide duct 25, li-

  mite by the stop bosses, which comes next, so that the stop bosses 13 16 and 13 ', 14'

  can certainly move slowly on the barret-

  tes of material 11, 11 'and 12, 12' and 13 ', 14' before rigidly bonding to them In the embodiment of a key according to FIG. 10, this key has a point 26 adapted to the angle miter, while it has at its rear end a notch 27 of angular shape Depending on the shape of the ends of the groove in the profiles, the tip can also be rounded or have another shape The purpose of the

  way of making the outline of the end of the cla-

  vette is first of all to fill the grooves of the profiles over their entire length when this key

is in place.

  While in the example according to Figures 2, 3, 6, 7, 8, 9, 12 the entry of the grooves 5, 6 is on the inner side of the frame rebate, so that it is on this inner side of the figure that one can introduce the key in the groove, it is naturally also possible to provide the entry on the opposite side, that is to say on the external side of the rebate of the

  frame It is always advisable to have if pos-

  sible this entry on the side where it does not interfere with the point

optically.

  Instead of having only one groove / link

  key at each corner of the frame, it is also possible

  ble to provide, for example two, as seen in Figures 7, 8, 9, or more connection locations, arranged at a certain distance from each other and of which at least two groove / key connections are provided

  in the vicinity of the external surfaces of the frame, to guarantee

  shooting a regular distribution of the forces In such an arrangement it is also possible, as can be seen according to the example of FIG. 9, to provide the entry of one of the grooves 5 on the internal side of the

  frame rebate and the other opposite side of the frame.

  While the example according to Figures 2, 3

  must represent the angle of a completely plas-

  1 Tick, where the profiles are exclusively kept in

  appears by the miter link according to the invention The embodiment according to FIGS. 7 9 shows that this miter link according to the invention can be used in the same way when the plastic profiles are further reinforced by internal reinforcing sections 28, 29 made of metal, the latter being able to be connected in the miter angles by means of angle iron

angle 30 in a known manner.

  Figures 11 and 12 show another

  example of execution of the tab link according to the

  In this example, the profiles of the plastic frame 31, 32 are attached, on one side of the frame, to a metal frame 33 34, linked in the miter angles by known angle angles 30, of

  so that we get a mixed metal / plastic frame.

  In this type of frame the plastic profiles 31, 32 are exclusively fixed, to the miter cutting edges by means of the miter connection according to the invention, welding can be dispensed with.

  additional plastic profiles.

  It Of course various modifications can be made by those skilled in the art to the devices.

  which have just been described by way of example only

  ples nonlimiting without departing from the scope of the invention.

Claims (15)

  1 Miter connection for frames consisting of profiles, in particular for window and door frames or the like, comprising at least one intermediate piece housed in a housing provided on the internal faces of the profiles to be connected from each angle miter, characterized in that there is provided, as a housing, respectively a notch (5, 6) extending parallel to the edges (9, 10) of miter   of the two profiles (1, 2, 31, 32) and having bars   material rakes (11, 11 'and 12, 12') limiting the miter cutting surfaces or other supports; and as an intermediate piece at least one key (7) which comes   grasp, both by its form and by exerting an ef-   strong, the strips of material and which presses one con-   the other the profiles (1, 2) to be connected along the miter cutting line (9, 10).   2 miter connection according to claim 1, characterized in that the notches (5, 6) are designed in the form of grooves which extend essentially   continuously along the length of the miter edges.   3 Tab link according to claims 1   or claim 2, characterized in that the rai-   nures (5, 6) grip at least the internal walls (1 ', 2'), on the external faces side of the frame (seen faces) of the profiles (1, 2, 31, 32).   4 Tab link according to any one of   Claims 1 to 3, characterized in that opposite   the groove (5 ', 6') provided in the internal wall (1 ', 2') of the external face of the frame is placed in parallel at least one second groove (5 ", 6"), notched in an intermediate wall (1 ", 2") provided inside of the profile.   Miter connection according to all of claims 1 to 4, characterized in that the grooves   (5, 6) have a dovetail-shaped section.   6 Tab link according to all resales   dications 1 to 4, characterized in that the grooves have a T shape.   7 Tab link according to all resales   dications 1 to 4, characterized in that the grooves have a U-shape. 8 Miter connection according to any one of   claims 1 to 7, characterized in that the grooves   res (5, 6) start on the inner side of the rebate of the   dre and end before the wall of the profile side ex- dull rebate.   9 Tab link according to any one of   claims 1 to 7, characterized in that the grooves   res begin on the outer side of the rebate and end   nent before the wall of the profile internal side of the film-   lure. Tab link according to any one of   claims 1 to 9, characterized in that the grooves   res are manufactured by machining with removal of material. 11 Tab link according to any one of   claims 1 to 10, characterized in that the rai-   nures are machined in the frames once assembled.   12 Tab link according to any one of   claims 1 to 12, characterized in that the rai-   nures are machined in the different front profiles frame assembly.   13 Tab link according to any one of   Claims 1 to 12, characterized in that the key   te (7) has stop bosses (13 16, 13 ', 14') connected by a core (19, 22) to form a single piece, Oisposed on both sides of the core projecting from it and whose sections correspond essential- '   ment to the section of the grooves (5, 6).   14 Tab link according to any one   of claims 1 to 13, characterized in that the   key is made of a material harder than the material of the profiles of the square. Tab link according to any one   of claims 1 to 14, characterized in that the   length of the key is approximately equal to the length of the miter edges.   16 Tab link according to any one   of claims 1 to 15, characterized in that the   stop bosses, which are housed in the grooves, of the key have a notch-shaped profiling (23), acting in the opposite direction to the direction of insertion 1 S of the key.   17 Tab link according to any one   of claims 1 to 16, characterized in that the   key (7) has at its front end in the direction of insertion a contour (26) adapted to the end of the groove and at its rear end a notch (27) concave of angular shape.   18 Tab link according to any one   claims 1 to 17, characterized in that   the entry (24) of the key formed between the stop bosses widens in section in its end zone in forward in the direction of insertion.   19 Tab link according to any one   of claims 1 to 18, characterized in that the   the key is also fixed in the grooves using glue. e.