FR2733786A1 - LOCKING DEVICE FOR WINDOWS, DOORS OR THE LIKE - Google Patents

Abstract

In this window blocking device (30) comprising a frame (20) and a leaf (10), on which is mounted a drawbar, an end element (31) of which extends in a rail (40) , along which a slide (50) runs and which comprises cams, the element (31) is guided at a constant height in the bottom (42) of the rail and its cams are turned towards the groove (44), in which a bar extends between the element (31) and the slide (50) and comprising, on its lower face, cams and on the other face profiled protrusions with which are associated the opposed profiled protrusions of the lower face of the slide (50). Application in particular to systems for blocking windows in the partially open position.

Description

The invention relates to a locking device for windows,

  doors or the like, comprising a fixed part (frame) and a part (leaf) movable relative to the fixed part, a pull-up bar

  located on the first part (leaf), which is moved

  ble longitudinally by means of a handle, and in which an end element of the drawbar (bar element) extends in the interior space of a rail having a U-shaped cross section and having, in places, cams, and the rail is fixed on the first part (leaf) and a slide extends along the groove formed by the U-shaped opening of the rail, and with the cams are associated opposite cams, against which the end element of the fraction bar moves with its cams during the longitudinal displacement of the draw bar and locks the slide in a desired longitudinal position of the rail, and comprising a deployment arm, one of which

  end is connected to the longitudinal guided slide-

  and whose other arm is connected to the second part

(frame).

  The role of such blocking devices is to block a leaf or leaf movable relative to

  to a fixed frame, and this with a defined opening angle.

  The leaf can be movable in any way relative to the frame, that is to say it can execute a movement of rotation, tilting, folding or swinging. The device is blocked and released using a handle, by means of which other latches and control elements can also be actuated between the frame and the leaf. This is done, as in the case of these elements, by means of a drawbar, which is movable longitudinally by means of a handle and which also achieves, by means of a end part provided in places with cams, locking the leaf in the desired tilted position. This element of the drawbar will be designated hereafter as

  abbreviated as "bar element".

  In the known device of the type indicated more

  top (prospectus Wilhelm Weidtmann, Drehfl gel-Tirbesc-

  hlag WW 875, September 1971), the bar element is located inside the U-shaped rail and the cams

  of the bar element are directed towards the bottom of the rail.

  A slide extends in the groove of the rail, which is formed by the U-shaped opening. In the bottom of the rail are arranged opposite fixed cams, against which the cams of the bar element circulate,

  when the drive bar is moved longitudinally

  lement. Therefore, the bar member is simultaneously lifted during the longitudinal translation and firmly clamps the slide in the groove. Since one end of a deployment arm is articulated

  on the slide and its other end is connected

  attached to the frame at a fixed point of articulation, the position of the deployment arm is fixed and therefore the leaf is fixed relative to the frame at an angle of

corresponding rotation.

  The firm blocking of the slide in the

  rail groove is effected by a friction connection

  which leads to an unpleasant and difficult actuation of the handle. Friction actions during tightening cause wear. In order to obtain a reliable blocking, intense clamping forces are required between the bar element and the slide and

  intense actuating forces must be applied

  quées by means of the handle. These intense actuation forces lead to the application of a high load to the entire linkage, which has a detrimental effect essentially in the area of the bevel gears.

  usual. Functional disturbances may occur

  operation until the bar breaks, insofar as a particularly stable and consequently expensive actuation linkage is not used, nor particularly massive means of fixing and guiding. Such a locking device equipped with a brake to be controlled by means of the handle

  window (prospectus of the company Winkhaus, overview

  ble from the "Fensterbremse" program, group 6, sheet 16) and is also equipped with a system for regulating the

braking force.

  In a deployment device for an oscillating leaf (German patent application DE 37 40 048 C2), it is known to provide, at the free end of the deployment arm, a slide, which is guided in a slide guide according to a tight sliding fit. For this purpose, the slide is made of a material having an appropriate coefficient of friction and has an adjustment device, by means of which the material of the slide can be compressed or expanded in order to modify the friction force. The friction connection between the slide and its guide is always present, and this is why the movement of the leaf is always difficult. There is no locking device that can be activated and deactivated

  optionally by means of the leaf handle.

  In addition, in a deployment device (German patent application DE 34 45 234 Ai), it is known to use two components that can be moved telescopically relative to each other, namely a shaped housing of U containing a movable slide inside this case. The side walls of the housing have a latching profile in which a control clamping element provided with cams meshes, which thereby fixes a defined deployed position between the slide and the housing. Activation and deactivation of the locking element using a leaf handle is also not provided. The invention aims to develop a reliable locking device, which spares the actuation linkage, of the type indicated above and which is characterized by easy actuation. This problem is solved in accordance with the invention thanks to the fact that the end element of the drawbar is guided at a constant height on the bottom of the rail and its cams are directed towards the groove of the rail, that along the groove and in the interior space of the rail extends a bar, which is arranged at a certain height height between the end element of the drawbar and the slide, is guided in this place of

  so as to be movable in height, but without possibility

  the longitudinal displacement unit is pushed by a spring force against the end element of the drawbar, that the bar has the opposite cams on its underside facing the bar member, while on the top of the bar are arranged protrusions, with which opposing profiled protrusions are associated on the underside of the slide, facing the end element of the drawbar, and that during the longitudinal displacement of the element end of the drawbar, the bar moves with its cams below the opposite cams, is lifted against the force of a spring and engages in a connection by complementary forms, by means of its parts profiled projections, in the projecting parts

  antagonistic profiles of the slide.

  The bar element serves to move in height a bar which generally extends along the groove present in the interior space of the rail, but is not movable longitudinally and which is arranged at a certain distance in height between the bar element and the slide. The bar element itself is guided longitudinally at a constant height on the bottom of the rail and has cams facing the groove of the rail. On the underside of the bar are arranged opposing cams, against which circulate cams which are located on the bar element and therefore raise the bar. The upper face of the bar has profiled projecting parts, to which are associated opposite profiled projecting parts located on the underside of the slide. These protruding parts and

  these antagonistic projecting parts mesh reciprocally-

  when the bar is raised above the bar element. The slide meshes in a connection by complementary shapes with the bar and therefore is reliably blocked. When locking or unlocking, the bar element is only moved longitudinally and no locking force has

  need to be applied. This results in an action-

  particularly easy to handle. The drawbar and all other parts of the actuating linkage, such as bevel gears, are no longer subjected to intense forces. Disruptions

  can no longer appear. The rod-

  actuation line and its fixings can be arranged

  in a simple and inexpensive way.

  According to another characteristic of the invention

  tion, a rack, which has on its upper face a toothing used as profiled protrusions, and a corresponding opposite toothing, used as profiled protruding parts

  opposite, is arranged on the underside of the coulis-

bucket.

  According to another characteristic of the invention

  tion, the rack is made so as to be rigid per se and can be moved in parallel, by means of height guiding elements, situated at the two

  ends, inside the rail.

  According to another characteristic of the invention

  tion, the rail is fitted with an insert, which has

  the height guide element for the rack.

  According to another characteristic of the invention

  tion, a pressure spring, which produces the force

  elastic of the bar, which is integrated in the insert.

  According to another characteristic of the invention

  tion, the insert has an end stop serving to limit the longitudinal movement of the slide in

the rail groove.

  According to another characteristic of the invention

  tion, the insert can be fixed to the rail and / or to the first

part (leaf).

  According to another characteristic of the invention

  tion, the rack has a corrugated longitudinal profile (corrugated bar), the upper face of the corrugations at least in places forming profiled protrusions, and the underside of the slide has a corrugated profile, which corresponds to said corrugated longitudinal profile as opposite profiled projecting parts.

  According to another characteristic of the invention

  tion, individual undulations of the corrugated bar, which are directed opposite the end member of the drawbar have a height

  more important and act as antagonistic cams

your from the bar.

  According to another characteristic of the invention

  tion, the corrugated bar is made of a material having the elasticity of a spring and at least part of the corrugated bar is bent, serves as a spring element and bears against a shoulder located in the interior space of the rail and produces elastic force

acting on the wavy bar.

  According to another characteristic of the invention

  tion, the spring element is formed by a part

  bent end of the corrugated bar.

  According to another characteristic of the invention

  tion, the shoulder is integrated in the insert mounted in

the rail.

  Other features and advantages of the

  present invention will emerge from the description given

  hereinafter taken with reference to the attached drawings, on the-

  which: - Figure 1 shows, in a plan view and in section, a window in the case where its leaf rotating in the frame is in the closed position, the upper amount of the frame being shown in cutaway view so that we can see the locking device according to the invention, which is mounted in the upper part of the leaf;

  - Figure 2 shows, according to a representation-

  tion corresponding to Figure 1, a partial window-

  ment open, the leaf of which is locked at a defined angle of rotation, by the locking device; - Figure 3 shows a cross-sectional view on a larger scale of the closed window, taken along the section line III-III in Figure 1, with the locking device mounted between the frame and the leaf; - Figure 4 shows on a smaller scale, a longitudinal section, in a separated position, of the locking device taken along the line IV-IV in Figure 3 before mounting in the window;

  - Figure 5 shows the end part

  left side of the device shown in FIG. 4, in the form of a longitudinal section taken along the line of cut V-V in FIG. 3, when the blocking device is located in its unblocked position;

  - Figure 6 shows the end element

  mite in longitudinal section shown in Figure 5 in the case where the device is located in its locked position; and - Figure 7 shows, in the form of a longitudinal section corresponding to Figure 5, another embodiment of the locking device according to the invention, in the case where the latter is located in its

unlocked position.

  In Figures 1 to 3, there is shown a window, in which the leaf 10 is connected by means

  of rotary joints 21, so as to be moved

  ble in rotation, to a fixed frame 20, and therefore can be transferred from its closed position shown in Figure 1, in an open position to any degree, according to Figure 2, in which the leaf 10 can be locked on a desired desired angle of rotation 22. For this purpose, a locking device 30 is used, which can be activated or deactivated by means of the same handle 11 and by means of which the leaf 10 is locked on the frame 20 and / or other control functions between the leaf 10 and the frame 20 can be performed. Instead of the rotating leaf 10, there could also be a folding or tilting leaf 10. Such a locking device can be used not only in the case of windows, but also in the case of doors or

other components.

  The handle 11 is mounted, in the case

  present on leaf 10 and this is why the components

  essential kills of the blocking device 30 are also inserted in a rebate 12 of the wing, which

is visible in Figure 3.

  It would also be possible to arrange the handle 11 and therefore the important components of the locking device 30 in a similar manner on the

  frame 20, instead of leaf 10. In this case, the device

  blocking pin 30 should be arranged symmetrically by

  compared to its assembly shown in Figures 1 to 3.

  The actuation of the handle 11 results in a longitudinal displacement of a draw bar not shown in detail, which in the embodiment acts on the actuation linkage, indicated by dashes in Figures 1 and 2 , an angle transmission device 14, of which only the angle rail 16 covering 16 can be seen. This actuation linkage 15 is connected, via the connection point 17 visible in FIG. 4, to an end element 31 of the drawbar, which is already part of the locking device 30. This end element is arranged in a particular way and will be designated hereinafter abbreviated as the "bar element 31 "as already mentioned above. The actuation of the handle 11 leads, via the linkage 15, to a longitudinal displacement 13 of this bar element 31, which is

  represented by the double arrow 13 in FIG. 4.

  The bar element 31 is arranged in the interior space 41 of a rail 40 having a U-shaped cross section which, as shown in the figure

  3, is mounted in the rebate 12 of the leaf 10. The element

  bar 31 slides in a guided manner, at a constant height, along the bottom 42 of the rail and at this

  indeed a passage 33 is provided in an external insert

  mity 43 of the rail 40. Opposite the bottom 42 of the rail, the U-shaped opening of the rail 40 forms a longitudinal groove 44, in which a slider 50 is normally freely movable in a longitudinal movement. As is better visible in FIG. 4, the slide 50 is stepped in its end part and carries in this place, by means of an axis

  articulation 51, one end 26 of a deployment arm

  ment 25, the opposite end 27 of which is coupled, with the possibility of tilting, to a support element 23, by means of another hinge pin 52. The stepped slide 50 allows the device 30 to be used also well in the case of a hinge 21 mounted on the left than in the case of a hinge 21 mounted on the right. The support part 23 is fixedly connected to the frame by means of fixing screws 24 or the like and has a bearing housing 29, comprising an elastic ring 28, as is better visible in FIG. 4. The axis of articulation 52 comprises for its part a

  undercut part 53 visible in FIG. 4.

  The hinge pin 52 snaps resiliently into the bearing housing 29 of the support element 23, when it is introduced in the direction of the arrow for coupling.

plement 54 visible in FIG. 4.

  When the window is closed, in accordance with FIG. 1, the slider 50 is located at one end of the rail 40 in the area of the mentioned insert 43, of which

  the inner end is used as an end stop

  mite 45 for the captive positioning of the slide in the groove 44 of the rail, as long as the device 30 is not yet mounted. Insert 43 is inserted by

  through a corresponding complementary profile

  dant, in the end area of the U-shaped rail 40 and can first simply snap appropriately with the latter. For the final blocking of the insert 43 in the rebate 12 of the leaf, there is provided a hole 47 used to house a fixing screw or

  analogous and to which is associated a longitudi-

  nale 37 fitted in the bar element 31 and the

  length takes into account the necessary travel distance

  longitudinal 13 of the drawbar when the handle is actuated 11. The insert 43 also has a lug 48, which is used for mounting the mentioned angle rail 16 of the angle gear 14 or a rail

  ceiling light associated with the actuating fitting.

  In accordance with FIG. 4, the opposite end of the U-shaped rail 40 is also closed by an insert 56, which is fixedly connected in advance to the rail 40 by a screw 58 or the like and comprises, for its fixing in the rebate 12 of leaf 10, also

  holes 57 for fixing screws or the like.

  The components of the locking device 30 can be mounted in the U-shaped rail 40 when the opposite insert 43 is detached. Likewise the insert 56 fixedly mounted forms, by its inner end, an end stop 45, which, in the case where the leaf 10 is completely open, limits the movement stroke of the slide 50, in this part d end of the

groove 44 of the rail.

  In a starting position of the element of

  bar 31, which is shown in FIG. 5, the coulis-

  bucket can circulate freely in the direction of the double arrow 59 indicated in this place, along the rail of the groove 44 of the rail. The bar element 31 is in this position also in the case of the opening movement 18 or the closing movement 18 ′ of the leaf 10, which is represented in FIG. 2 by the double arrows 18 and 18 ′. However, as already mentioned, the blocking device 30 serves to block the leaf 10 for example on the opening angle 22 shown in FIG. 2. This is done by means of a longitudinal displacement 13, controlled by means of the handle 11, of

the bar element 31.

  To block the blocking device 30, the bar element 31 is displaced on the displacement stroke 34 which can be recognized by comparing FIGS. 5 and 6. The bar element 31 is in fact provided, in places, cams 36, the longitudinal position of which varies on the rail 40. These cams 36 are formed simply by external discharge, in places, of the material of the bar and are directed upwards, in the direction of the groove 44 of the rail. To one

  distance in height 38 between the slide 50 and the element

  bar 31 is arranged a bar 32 which, in accordance

  ment in Figure 4, is guided perpendicular to the bottom 42 of the rail, but without the possibility of longitudinal displacement, in recesses of stepped form of the two inserts 43, 56, and this is why these cutouts must be designated as "elements 19 "height guide. The bar 32 is subjected to the action of force, which is symbolized by the arrow 39 in Figures 5 and 6, of a pressure spring 49 which is mounted in the housing bores of the two

  inserts 43, 56. The pressure spring 49 tends to

  fix the bar 32 in contact with the bar element 31.

  The underside of the bar 32, which faces the bar element 31, is provided with opposite cams 46 in the form of nipples, which, in the extended position of the bar element 31 of FIG. 5, are located in the area between neighboring cams 36 of the bar. On its upper face, the bar 32 has a toothing 35 with which is associated, at the lower face of the slider, an opposite shaped toothing 55 of the slider 50. Due to its toothing 35, the bar 32 can be designated as being a "rack". In the extended position of FIG. 5, since the cams 36 located on the bar and the opposite cams 46 located on the bar are in an intermediate position, there is an interval, which is visible in FIG. 5, between the teeth 35, 55 located on both sides, and this is what allows the

  free movement 59, mentioned above, of the coulis-

bucket 50.

  However, this changes when the bar element 31 has been brought by means of the handle 11, in the direction of the translation arrow 13, in its other longitudinal position visible in FIG. 6. In fact, during this longitudinal translation 13 , the cams 36 located on the bar circulate below the opposite cams 46 located on the bar and raise the rack 32 in the direction of the lifting arrows 61 of FIG. 6, in its height guide elements 19 located at the two ends , to bring it into contact, against the force 39 of the spring, with the underside of the slide 50. As a result, the teeth 35 located on the bars mesh in a connection by complementary shapes with the opposing teeth 55 located on the slide. Consequently, as shown in FIG. 6, the determined longitudinal position of the slide 50 in the rail 40 is fixed. These conditions can be obtained when the handle 11 is actuated, in the desired open position of the leaf of FIG. 2. Thanks to the blocking of the slide 50, a modification of the angle of rotation 22, represented in FIG. 2, leaf 10 is not possible either in the

  opening direction 18 nor in the closing direction-

  ture 18 'since for this purpose it would be necessary to move the slide longitudinally, in a corresponding manner

in groove 44 of the rail.

  To open the leaf 10 more substantially in the direction of the arrow 18 or to be able to close it again in the direction of the arrow 18 'in FIG. 2, it is sufficient, by actuating the handle 11, to bring the the bar element 31, and this on the displacement stroke 34 already mentioned, in its starting position visible in FIG. 5. Then, the cams 36 again reach the intermediate position between the opposite cams 46 located on the bar, and the rack 32 is again retracted by the force 39 of the spring which acts on it. Therefore, the teeth of the rack 32 are uncoupled from the teeth

opposite 55 of the slide 50.

  In FIG. 7, a second embodiment 30 ′ of the invention is shown, in which, for the designation of the corresponding components, we have

  used the same reference figures as in the example

  ple of previous embodiment of Figures 1 to 6. At this

  regard, the description given previously is valid.

  It suffices to indicate the differences. The latter essentially consist of another arrangement of the strip 32 ', which here has a particular corrugated longitudinal profile 62, 63, and this is why this strip 32' will be designated hereinafter abbreviated as

"wavy bar".

  The corrugated bar 32 ′ has a different corrugated profile at the level of sections 62, 63 and which in reality differ by a height different from the amplitudes of the corrugations. There is a profiled section 62 which has corrugations having comparatively small heights and between which is arranged an insulated corrugation 63 having a relatively large height 64, which is directed towards the edge element 31. Therefore, this corrugation 63 makes protrudes more consistently from the underside of the bar, relative to the neighboring sections 62 of the corrugated profile and this is why this corrugation 63

  cooperates as an opposite cam with the corresponding cam

  dante 36 of the bar element 31. The inter-

  flat flats 62 of the corrugated profile, having smaller heights delimit a free space in which, by analogy to FIG. 5, cams 36 located on the bar are placed, when the bar

  corrugated 32 'is in the extended position.

  Likewise, this wavy bar 32 ′ is loaded by a spring in accordance with the arrows 39 indicated in FIG. 7 and tends to come to apply permanently against the bar element 31. The associated spring is integrated in the wavy bar 32 ′ and uses the material of the bar itself, which has the elasticity of a spring. To this end, the two end parts 65, 66 of the corrugated bar 32 ′ are bent in the form of angles and bear on an internal shoulder 67, 68 of the inserts 43 ′, 56 ′ located at this location. The bent elements of the two end parts 65, 66 have a V-shaped profile. The free V branch of an end part 65 is pressed against the upper face of the bar element 31, while the branch free from the V on the other end part 66 rests on an inner tab 69 of

insert 56 '.

  The sections 62 of the corrugated profile form profiled projecting parts which protrude from the face

  upper part of the bar and which, by analogy with

  ple of previous embodiment, cooperate with corresponding opposite profiled projecting parts 70 of corrugated shape of the slide 50 'situated at this location, when the corrugated bar 32' is in the similar blocking position, described with reference to FIG. 6. The embodiment shown in Figure 7 shows the locking device 30 'in a starting position corresponding to Figure 5 of the previous embodiment, in which an interval 60' is present

  between the corrugated bar 32 'and the slide 50'.

Claims (12)

  1. Locking device (30; 30 ') for windows, doors or the like, comprising a fixed part (frame 20) and a part (leaf 10) movable relative to the fixed part,   a pull-up bar located on the first part (van-   tail 10), which can be moved longitudinally by means of a handle (11), and in which an end member of the drawbar (member 31 of the bar) extends into the interior space (41) d 'a rail (40) having a U-shaped cross section and has, in places, cams (36), and the rail (40) is fixed on the first part (leaf 10) and a slide (50.50' ) extends along the groove (44) formed by the U-shaped opening of the rail (40), and with the cams (36) are associated opposite cams (46), against which the end element of the pull-up bar (31) moves with its cams (36) during the longitudinal movement (13) of the pull-up bar and locks the slide (50) in a desired longitudinal position of the rail, and   comprising a deployment arm (25), one of which is   mite (26) is connected (in 51) to the slide (50; 50 ') guided longitudinally and whose other arm (27) is connected (in 52) to the second part (frame 20), characterized in that the end element of the drawbar (31) is guided (33) at a constant height on the bottom (42) of the rail and its cams (36) are directed towards the groove (44) of the rail, that along the groove (44) and in the interior space (41) of the rail extends a bar (32; 32 '), which is arranged at a certain height distance (19) between the end element of the bar of traction (31) and the slide (50), is guided in this place so as to be movable in height (61), but without possibility of longitudinal displacement, is pushed by a spring force (39) against the element d end of the drawbar (31), that the bar (32,32 ') has opposite cams (46) on its inner face turned towards the end element of the bar (31), while q eue on the upper face of the bar are arranged protrusions (35; 62), with which opposing profiled protrusions (55; 70) are associated on the underside of the slide (50; 50 '), facing the element end of the bar (31), and that during the longitudinal displacement (13) of the bar element (31), the bar (32; 32 ') moves with its cams (36) below the cams opposite (46), is raised against the force (39) of a spring and engages in a connection by complementary forms, by means of its profiled projecting parts (35; 62), in the profiled projecting parts antagonists (55; 70) of the slide (50; 50 ').   2. Device according to claim 1, characterized by a rack (32), which carries on its upper face a toothing (35) used as   profiled projecting parts, and an oppo-   corresponding seat (55), used as opposite profiled projecting parts, is arranged on the underside of the slide.   3. Device according to claim 2, characterized in that the rack (32) is produced so as to be in itself rigid and is movable (61) parallel, by means of elements (19) for guiding   height, located at both ends, in the interior space rail (41).   4. Device according to claim 3, character-   The rail (40) is fitted with an insert (43, -   56; 43 ', 56'), which has the guide element (19) in height for the rack (32).   5. Device according to claim 4, character-   that a pressure spring (49) which produces the   elastic force (39) of the bar (32; 32 '), is integrated thank you in The insert.   6. Device according to claim 4 or 5, characterized in that the insert (43, 56) has an end stop (45) serving to limit the longitudinal movement (13) of the slide (50) in the groove (44) of the rail.   7. Device according to any of the res-   dications 4 to 6, characterized in that the insert (43, 56) can be fixed to the rail (40) and / or to the first part (leaf 10).   8. Device according to claim 1, character-   laughed in that the bar has a Longitudi-   corrugated nal (62) (corrugated strip 32 '), the upper surface of the corrugations of which forms at least in places   profiled projecting parts, and that the underside   lower of the slide (50 ') has a corrugated profile (70), which corresponds to said corrugated longitudinal profit,   as opposite profiled protrusions.   9. Device according to claim 8, character-   risé in that individual undulations (63) of the corrugated bar <32 '), which are directed opposite the end element of the drawbar (31), have a greater height (64) and act   as opposing cams of La barrette (32 ').   10. Device according to claim 8 or 9, characterized in that the corrugated bar (32 ') is made of a material having the elasticity of a spring and that at least part (65) of the corrugated bar (32 ') is bent, serves as a spring element and bears against a shoulder (67, 68) located in the interior space (41) of the rail and produces the force   elastic (39) acting on the corrugated bar (32 ').   11. Device according to any one of the res-   dications 8 to 10, characterized in that the spring element is formed by a bent end part (65) of the wavy bar (32 ').   12. Device according to claim 10 or 11, characterized in that the shoulder (67, 68) is integrated   in the insert (43 ', 56') mounted in the rail (40).