EP1331332B1 - Latch for window wing or the like - Google Patents

Description

The invention relates to a lock for a window leaf, French window or the like, according to the preamble of claim 1.

The present invention relates to the field of building hardware and relates, in particular, locks provided adapted to be embedded in a rabbet groove of a leaf, more particularly, a window with two leaves.

In this regard, in the case of a window with two leaves mounted articulated on a frame without a central mullion, one of these leaves, said service, is equipped with a lock fitting, very often a cremone, while the rabbet of its front pillar comes to overlap the rabbet of the front pillar corresponding to the other leaf, said fixed. Under these conditions, it can only be opened once the door leaf has been unlocked and pivoted.

In fact, the fixed leaf is still so called to the extent that it is associated, usually, locking means in the form of one or more latches taking position in rebate of its front amount. Such locks are equipped with a rod whose one end is likely to be protruding, as the case may be, at the upper end or at the lower end of this front post of the leaf to cooperate with a strike arranged in correspondence on the crosses the sleeping frame. In short, this or these locks keep this fixed leaf closed on this dormant frame, even after unlocking the espagnolette associated with the service leaf.

To return to these locks, the aforementioned rod takes position within a groove that includes rabbet this amount before the fixed leaf. In fact, said rod moves at the rear of a headrest to the front of which is accessible a control member for acting on said rod to bring it, as the case, in the locking position or unlocking. This control member may be in the form of a slider mounted axially movable, at the front of the headrest while being secured to the rod coming to move at the rear of the latter. Connecting means connect this slider to said rod through one or more oblong openings in this headrest to reach the locking position and vice versa unlocking.

This control member may also be in the form of a lever pivotally mounted at the front of the headrest and which, after locking, comes to fade by positioning in the extension of the latter.

In some cases, this lock is likely to be controlled through the lock fitting, in particular, the espagnolette, equipping the service leaf. In this case, the control member is defined capable of cooperating, closed window, with a trainer that includes, in rebate, the front amount of this leaf of service. This trainer may be actuated through an operating rod corresponding to said espagnolette.

Whatever their embodiment, these locks comprise means to make solidarity, while leaving free sliding of a specific race, the rod relative to the headrest. These means of joining together, not only require specific machining, both at the headrest and the rod, but, in addition, generate during manufacture of these locks assembly operations that can be described as binding.

Moreover, they intervene, most often, at the ends of the headrest so that these locks are not adjustable in length simply by cutting.

It will be observed, again, that due to the progressive evolution of joinery, in particular aluminum and PVC profiles, many lock references appear in the catalogs of manufacturers whose inventory management is found heavier. Moreover and as already indicated above, the very design of these latches according to the state of the art limits their application, in that the dimensional constraints that result from them allow their assembly only on certain openings whose size (max / min ) is in adequacy.

In addition, the rebate games, whether between opening and sleeping, opening and fixed opening or between an opening and the mullion of a window frame or the like, are variable and tend to decrease, so that known locks often pose a congestion problem

Thus, it is for example known through the document FR-2744479 a latch comprising a rod extending at the rear of a headrest having a rectangular light from which emerges a free end folded at an angle corresponding to the rod and constituting, substantially, a control member for acting on said rod . Beneath the end of the headrest relative to which is likely to be protruding the corresponding end of the rod is arranged a sleeve for guiding and maintaining the latter. Note that this link from the rod to the headrest with relative mobility is ensured here, in a complementary manner, by a "T" rivet extending behind said headrest and passing through an oblong slot in the bead wire.

It is understood, of course, that the realization of such a lock requires the execution of several assembly operations of multiple parts.

In fact it is apparent from the state of the art that these latches systematically use a sheath for maintaining and guiding the rod, at least at the end of the headrest from which it comes s extend into locking position. This sleeve which constitutes an additional piece requires, of course, a specific mounting operation.

Just like in the design of a lock according to the document FR-2 744 479 , it is common to index the locked and unlocked position of the rod by adding, here again, an additional piece that only complicates a little more this design of the lock.

The present invention is therefore intended to provide a solution to these various problems through a lock which has, in particular, the advantage of being of very simple design, requiring a minimum of operations of manufacturing and whose assembly is very easy, besides it wants to be easily adaptable in dimension to allow its application in the most constraining conditions. This lock, according to the invention, is still intended simplified implementation, either alone or in connection with other fittings on the same leaf and / or on an adjacent leaf, or a dormant frame. In particular, this simplicity of design makes it possible to envisage that such a lock intervenes as an extension in the case of an application, for example of the espagnolette-lock type.

He is also known, by the document DE-B-1 075 000 , a lock comprising a rod mounted sliding on the back of a headrest. The rod has a first end likely to protrude from a corresponding end of the headrest to define a locking member.

Moreover, at this end, said headrest is folded at right angles so as to form a return in which is formed a passage opening of said rod.

It further comprises a second end folded so as to pass through an opening in the headrest and define a control member accessible on the front face of the latter

To this end, the invention relates to a lock for a window leaf, French window or the like comprising a headrest at the rear of which extends a bead wire comprising, on the one hand, an end likely to be projecting relative to at a corresponding end of said headrest to define a locking member adapted to cooperate with a keeper and, secondly, an opposite end folded so as to pass through an opening in the headrest and define, on the one hand, a member control device accessible on the front face of the latter and, secondly, first holding and guiding means, characterized in that said headrest comprises secondary holding and guiding means defined by stamping and / or cutting and / or or folding of the latter, not located at the end relative to which is likely to be protruding the end of the rod, these holding means and guide e secondary being provided capable of cooperating with complementary secondary holding and guiding means also defined by stamping and / or cutting and / or folding of the rod to make the latter of said headrest with relative axial mobility.

The advantages that flow from the present invention are that the lock, in accordance with the latter, is of design could not be simpler, since it is defined by two parts that can be made by a stamping operation -découpage, or even folding. In addition, in a preferred embodiment, these parts are defined to be assembled manually. This lock is still almost universal application allowing, in particular, the manufacturer to standardize its product line, so optimize the management of its inventory.

• La figure 1 est une représentation schématisée vue en plan d'un verrou conforme à un premier mode de réalisation ;
• La figure 2 est une représentation schématisée et en coupe selon II-II de la figure 1 ;
• Les figures 3 et 4 sont des représentations similaires aux figures 1 et 2 illustrant un verrou conforme à l'invention selon un second mode de réalisation ;
• La figure 5 est une vue schématisée et en coupe selon V-V de la figure 4 destinée à illustrer les moyens d'indexation de la position de la tringle dans ses positions de verrouillage et de déverrouillage ;
• Les figures 6 et 7 sont là encore des représentations similaires aux figures 1 et 2 ou 3 et 4 illustrant un verrou, selon l'invention, conforme à un troisième mode de réalisation.
• Les figures 8 et 9 sont des représentations similaires aux figures 6 et 7 et illustrant un verrou, selon l'invention, conforme à un quatrième mode de réalisation se rapprochant toutefois de celui correspondant à ces figures 6 et 7 ;
• La figure 10 et une vue en coupe selon X-X de la figure 8 ;

The present invention will be better understood on reading the following description relating to exemplary embodiments illustrated in the accompanying drawings.

• The figure 1 is a schematic plan view of a lock according to a first embodiment;
• The figure 2 is a schematic representation and in section along II-II of the figure 1 ;
• The Figures 3 and 4 are representations similar to Figures 1 and 2 illustrating a lock according to the invention according to a second embodiment;
• The figure 5 is a schematic view and in section according to VV of the figure 4 intended to illustrate the indexing means of the position of the rod in its locking and unlocking positions;
• The Figures 6 and 7 are again representations similar to Figures 1 and 2 or 3 and 4 illustrating a lock, according to the invention, according to a third embodiment.
• The Figures 8 and 9 are representations similar to Figures 6 and 7 and illustrating a lock, according to the invention, according to a fourth embodiment, however, approaching that corresponding to these Figures 6 and 7 ;
• The figure 10 and a sectional view along XX of the figure 8 ;

While the figure 11 illustrates schematically and in perspective the hooking clip that has on the rear face the headrest as additional connecting member between the headrest and the rod of the lock.

The present invention relates to a lock of which various embodiments have been illustrated in the Figures 1 to 11 attached drawings.

Usually, such a latch 1 is provided adapted to be embedded in a groove rabbet of a window leaf, French window or the like.

Thus, it will find its use in the case of windows with two leaves whose dormant frame is devoid of central mullion. Under these conditions, he takes up position at the upper end or lower of a rabbet groove of the front upright corresponding to the so-called fixed leaf, as opposed to the so-called service leaf equipped with the locking fitting, in particular, the espagnolette or espagnolette-lock that includes such a window.

Thus, this latch 1 comprises a rod 2A, 2B, 2C, 2D extending at the rear of a headrest 3A, 3B, 3C, 3D and one end 4 of which is likely to be projecting with respect to the end corresponding 5 of the latter.

More particularly, through this design and in the case of an embodiment as described above, this end 4 of the rod 2A, 2B, 2C, 2D is, in the locking position, able to present itself protruding from the upper or lower end of the front upright corresponding to the fixed leaf to cooperate with a keeper arranged in correspondence on the frame of the window. Conversely, in the unlocked position, said rod 2A, 2B, 2C, 2D is erased at the rear of this headrest 3A, 3B, 3C, 3D.

It is possible to act on the rod 2A, 2B, 2C, 2D to move from this locked position to the unlocked position or vice versa thanks to a control member 6A, 6B, 6C, 6D defined accessible on the front face 7 of said headrest 3A, 3B, 3C, 3D.

The latter comprises an opening 10A, 10B, 10C, 10D crossed by an end 15A, 15B, 15C, 15D folded of the rod 2A, 2B, 2C, 2D and substantially defining this control member 6A, 6B, 6C, 6D accessible front face 7 of said headrest 3A, 3B, 3C. In fact, this opening 10A, 10B, 10C, 10D in the headrest 3A, 3B, 3C, 3D and the end 15A, 15B, 15C, 15D folded of the rod 2A, 2B, 2C, 2D are designed to define first holding and guiding means 8A, 8B, 8C, 8D for securing said rod 2A, 2B, 2C, 2D of said headrest 3A, 3B, 3C, 3D with a relative axial mobility.

Said headrest 3A, 3C, 3D comprises secondary holding and guiding means 9A, 9C, 9D defined by stamping and / or cutting and / or folding thereof and provided adapted to cooperate with complementary secondary holding and guiding means 9'A, 9'C, 9'D, also defined by stamping and / or cutting and / or folding of the rod 2A, 2C, 2D to make it integral with said headrest 3A, 3C, 3D, again with relative axial mobility.

We will particularly refer to Figures 1 and 2 corresponding to a first embodiment of the lock 1 according to the invention.

Thus, in this case the opening 10A is defined at the level of the headrest 3A by a rectangular light, more particularly near its end 11 opposite to that 5 relative to which is likely to be projecting the rod 2A.

Furthermore, the secondary holding and guiding means 9A are constituted, at this end 11, said headrest 3A, by a retaining loop 12 provided with an opening 13 and defined by stamping and / or cutting and / or folding, s' extending above the front face 7 of this headrest 3A. The opening 13 is of section adjusted to that of the rod 2A. The latter furthermore comprises, as complementary secondary holding and guiding means 9'A, an end portion 14 forming a recess with respect to its main plane and extending beyond its folded end 15A crossing the opening 10A in the headrest 3A. Thus, in the mounted position of said rod 2A, its free end 15, opposite that 4 forming a locking member, engages in this opening 13 of the retaining loop 12.

Moreover, at this end portion 14 of the rod 2A, emerging on the front face 7 of this headrest 3A, is provided a boss 16 complementing the control member 6A defined by said folded end.

Along the rod 2A, there are, again, oblong openings 17 to be located in line with holes 18 in the headrest 3A for the passage of fixing screws to make the lock 1 of the joinery.

Note that, in accordance with the invention, this lock 1 can be provided with indexing means 19 for locating the position of the rod 2A, 2B, 2C, 2D relative to the headrest 3A, 3B, 3C, 3D this more particularly in the locking and unlocking position.

Substantially, in the embodiment corresponding to Figures 1 and 2 these indexing means 19 consist of a pin 20 formed at the rod 2A facing the headrest 3A. In addition, the latter comprises housings or perforations 21, 22 with which this stud 20 can coincide, precisely in these locking and unlocking positions. Obviously, one could imagine an inverted design of equipping the headrest with a nipple, the rod then comprising the housing or perforations.

In the context of the embodiment corresponding to Figures 3 to 5 , the first holding and guiding means 8B for making said rod 2B of said headrest 3B with relative axial mobility consist, again, in an opening 10B, of rectangular shape, at the level of the headrest 3B, and a free end 15B, folded at right angles, of the rod 2B, so as to pass through the opening 10B and constitute, substantially, the control member 6B accessible front face 7 of the headrest 3B.

In the same inventive concept, the secondary holding and guiding means 9B are defined by a "T" rivet 23 provided adapted to cooperate with complementary secondary retention and guiding means 9'B in the form of an oblong slot 24B formed in the rod 2B, to make the latter of said headrest 3B with relative axial mobility.

Thus, this rivet 23, whose head 25 is greater in diameter than the width of the oblong slot 24B, slidably holds the rod 2B at the rear of the headrest 3B.

As in the previous embodiment, at this rod 2B may be formed one or more other oblong openings 17 to the right of holes 18 in the headrest 3B for the passage of fixing screws.

As for the indexing means 19, they are associated with the opening 10B in the headrest 3B, on the one hand, and the free end 15B, folded at right angles, of the bead wire 2B on the other hand.

More particularly, said indexing means 19 consist at the level of this opening 10B in end portions 26, 27 adjusted to the width of the rod 2B and separated by a median portion 28 forming a throat, therefore of smaller width than of this rod 2B.

The angled end 15B of this rod 2B has, for its part and as visible in particular in the figure 5 , cutouts 29 at its side edges 30, 31. Thus, at the height of these cutouts 29, this end folded at right angles 15B of the rod 2B has a width 32 adjusted to the width of the middle portion 28 of the light 10B . Therefore, on either side of these cutouts 29, this angled end 15B of the rod 2B retains a width equal to that of the latter, a width adjusted to the passage of the end portions 26, 27 of this opening 10B. As well, when said cutouts 29 are located at the right side edges 33, 34 of this middle portion 28, this end bent at right angle 15B of the rod 2B can move freely along the light 10B to move from the locked position to the position unlocked.

However, and as is still visible in the figure 5 , the cutouts 29 have the particularity of giving this folded end 15B an H-shaped shape, a lower horizontal leg 35 of width adjusted to that of the rod 2B engages in the opening 10B, at its height. end portions 26, 27. It is conceivable, under these conditions, that it is appropriate to exert pressure on this free end 15B of the rod 2B to release, by elastic deformation of the latter, this horizontal branch 35 of the H of said opening 10B and for the purpose, firstly, to present the cutouts 29 in the extension of the lateral edges 33, 34 of the middle portion 28 and to be able to move from a locked position of the rod 2B in its position unlocked and vice versa.
Under the effect of the rod 2B regaining elastically its initial shape and after reaching one or other of these positions, said horizontal branch 35 of H corresponding to this free end 15B of the rod 2B is inserted again in an enlarged end portion 26, 27 of the opening 10B immobilizing, thus, in translation, the rod 2B relative to the headrest 3B.

The Figures 6 and 7 illustrate an embodiment which differs from that corresponding to Figures 1 and 2 in that the secondary holding and guiding means 9C are defined by a T-shaped hook 36 formed by stamping-cutting the headrest 3C and extending under the latter to cooperate with an oblong slot 24C cut in the rod 2C and corresponding the complementary secondary holding and guiding means 9'C.

Thus, this hook 36 has an axial branch 37 extending under the headrest 3C and width adjusted to the width of the oblong slot 24C in the rod 2C allowing the latter to move freely from its locked position in its unlocked position . Moreover, this T-hook 36 terminates in a transverse branch 38 extending substantially parallel under the headrest 3C. Furthermore, if it has a transverse length 39 greater than the width of said oblong slot 24C, its width 40, seen in the axial direction of the faceplate 3C, is defined, it, less than or equal to this width of said oblong slot 24C .

This feature allows to fit through this oblong slot 24C the rod 2C on the T-shaped hook 36 by first positioning this rod 2C substantially perpendicular to the axis of the headrest 3C. Finally, after crossing the transverse branch 38 of this hook 36 the oblong slot 24C in the rod 2C, it can be pivoted about its axial branch 37 to come in the axis of the headrest 3C. At this moment its free end folded at right angle 15C, with characteristics identical to the free end 15B of the rod 2B corresponding to the embodiment of the Figures 3 to 5 can be engaged in the opening 10C of this headrest 3C.

In the context of the embodiment corresponding to Figures 8 to 11 this problem is replaced by replacing such a T-hook 36 as secondary holding and guiding means 9D by at least one hooking clip 41 extending, again, under the headrest 3D and on which is snapped the 2D rod through its oblong slot 24D constituting the complementary secondary holding and guiding means 9'D.

More particularly, this hooking clip 41 results from a stamping operation of said 3D faceplate. It consists of a tab 42 cut in the longitudinal axis of the latter. It is pushed so as to project under this 3D headboard and has a transverse width 43 smaller than the width 44 of the lumen 24D to allow the engagement of the 2D rod on this tongue 42. This latter also includes a distance 45 from the rear face of said 3D faceplate corresponding at least to the thickness 46 of the 2D rod, lateral retaining lugs 46 which give this tongue 42, at this level, a width 47 greater than that 44 of said 24D light in the 2D rod. Thus, the interlocking of the latter, through its light 24D, on this tongue 42 is obtained slightly in force, the lateral branches 48, 49 of the 3D rod delimiting said light 24D having sufficient elasticity to cross the pins of restraints. 46. Preferably, these are chamfered on their side 50 facing the 3D headrest so as to facilitate this interlocking, while on their opposite side they form redan to prevent dislocation of the 2D rod.
Of course, this snap clip 41 can borrow many other embodiments. In particular, it can be defined as an independent piece that can be secured to the headrest by riveting, clipping or other.

As is apparent from the foregoing description, the present invention leads to design locks could not be simpler, which reduces, of course, the cost of manufacture, but also that of their assembly and mounting on a carpentry.

Claims (12)

1. Latch for a wing of a window, French window or the like, including a face-plate (3A, 3C, 3D) behind which extends a rod (2A, 2C, 2D) including, on the one hand, and end (4) capable of being protruding with respect to a corresponding end (5) of said face-plate (3A, 3C, 3D) in order to define a locking organ capable of co-operating with a keeper and, on the other hand, an opposite end (15A, 15C, 15D) curved so as to pass through an opening (10A, 10C, 10D) in the face-place (3A, 3C, 3D) and to define, on the one hand, a control organ (6A, 6C, 6 D) accessible on the front face (7) of the latter and, on the other hand, first retaining and guiding means (8A, 8C, 8D), wherein said face-plate (3A, 3C, 3D) includes secondary retaining and guiding means (9A, 9C, 9D) defined through deep-drawing and/or cutting and/or folding the latter, not located at the end (5) with respect to which the end (4) of the rod (2A, 2C, 2D) is capable of being protruding, these secondary retaining and guiding means (9A, 9C, 9D) being designed capable of co-operating with complementary secondary retaining and guiding means, which are also defined through deep-drawing and/or cutting and/or folding the rod (2A, 2C, 2D) in order to make it integral, with a relative axial mobility, with said face-plate (3A, 3C, 3D).
2. Latch according to claim 1, wherein the secondary retaining and guiding means (9A) are formed, at one end (11) of said face-plate (3A) by a retaining lug (12) extending above the front face (7) of the latter, while the complementary secondary retaining and guiding means (9'A) are formed by an end portion (14) of the rod (2A) forming a set-back with respect to its main plane and extending beyond its curved end (15A) so as to insert into said opening (13).
3. Latch according to claim 2, wherein at the level of the end portion (14) of the rod (2A) is provided for, protruding at the front face (7) of the face-plate (3A), a boss (16) complementing the control organ (6A).
4. Latch according to claim 1, wherein the secondary retaining and guiding means (9C) are formed by a T-shaped hook (36) made through deep-drawing / cutting the face-place (3C) and extending under the latter in order to co-operate with an elongated slot (24C) cut out in the rod (2C) and corresponding to the complementary secondary retaining and guiding means (9'C).
5. Latch according to claim 4, wherein the hook (36) includes, on the one hand, an axial leg (37) extending under the face-plate (3C) and having a width adapted to the width of the elongated slit (24C) in the rod (2C) and, on the other hand, a transverse leg (38) extending substantially parallelly under the face-plate (3C) and having a transversal length that is larger then the width of the elongated slit (24C), while it has a width (40), in the axial direction of the face-plate (3C) that is smaller than or equal to the width of said elongated slit (24C).
6. Latch according to claim 1, wherein the secondary retaining and guiding means (9D) are defined by at least one coupling clip (41) made through deep-drawing / cutting the face-plate (3D) and extending under the latter and into which the rod (2D) snaps in by means of an elongated slit (24D) corresponding to the complementary secondary retaining and guiding means (9'D).
7. Latch according to claim 6, wherein the coupling clip (41) consists of a tongue (42) cut in the longitudinal axis of the face-plate (3D) and protruding under the latter, said tongue (42) having a transversal width (43) that is smaller than the width (44) of the slit (24D) in the rod (2D), and having, at a distance (45) from the rear face of said face-plate (3D), which distance (45) corresponds at least to the thickness (46) of the rod (2D), lateral retaining catches (46).
8. Latch according to claim 7, wherein the retaining catches (46) are biselled on their side (50) opposite the face-plate (3D), while they form a step on their side in front of the latter.
9. Latch according to any of the preceding claims, wherein along the rod (2A, 2B, 2C, 2D) are provided for one or several elongated slits (17) that are located in front of the holes (18) in the face-plate (3A, 3B, 3C, 3D) for the passing-through of the securing screw.
10. Latch according to any of the preceding claims, including indexing means (19) in order to fix the position of locking and unlocking of the rod (2A, 2B, 2C, 2D) with respect to the face-plate (3A, 3B, 3C, 3D).
11. Latch according to claim 10, wherein the indexing means (19) consist of a stud (20) provided for at the level of the rod (2A) or the face-plate (3A), in front of the face-plate (3A) or the rod (2A), respectively, said face-plate (3A) or the rod (2A) including recesses or perforations (21, 22), which this stud (20) is capable of coinciding with in said locking or unlocking positions.
12. Latch according to claim 10, wherein the indexing means (19) are associated, on the one hand, with the opening (10B, 10C, 10D) in the face-plate (3B, 3C, 3D) and, on the other hand, the free end curved at right angle (15B, 15C, 15D) of the rod (2E, 2C, 2D), said indexing means (19) consisting, at the level of said opening (10B, 10C, 10D), of end portions (26, 27) adapted to the width of the rod (2B, 2C, 2D) and separated by a median portion (28) forming a narrowing, while, at the level of the end curved at right angle (15B, 15C, 15D) of said rod (2B, 2C, 2D), it includes cut-outs (29) at the level of its side edges (30, 31), so as to have a width (32) adapted to the width of the median portion (28) of the opening (10B, 10C, 10D), said cut-outs (29) also imparting to this free end curved at right angle (15B, 15C, 15D) of the rod (2B, 2C, 2D) a H-shape including a lower horizontal leg (35) with a width adapted to that of the rod (2B, 2C, 2D) and designed capable of inserting into the opening (10B, 10C, 10D) at the level of its end portions (26, 27).

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