FR2798949A1 - DOOR OR WINDOW TYPE JOINERY - Google Patents

Abstract

The lock for a building window or door has a housing (2) with a handle (3) for moving a locking linkage into locked or released positions. The housing has fixings for a cover (11) with complementary fixings (12). The cover has a rectangular opening (24) for a locking lug (25). The cover has a U-shaped structure with an extension (23) having an opening (24) for the lug and having fixings (12A) co-operating with those of an extension (26) of the housing.

Description

The invention relates to a cremone bolt for carpentry of the door or

  window, comprising a housing provided capable of taking position in a recessed groove in joinery rebate and accommodating a control mechanism comprising at least one toothed wheel, in particular a nut for bringing back at least one operating rod, extending above and / or below said

  housing, in a locked or unlocked position.

  The present invention relates to the field of building hardware and relates, more particularly, to cremones devoid of shooting faceplates capable of housing their rod

maneuver.

  In the field of wooden joinery it is quite usual to find in rabbet, in particular of the opening of a door or window, a recess groove accommodating the various elements of a cremone bolt or even a cremone bolt. In all cases, if it is a cremone bolt or a bolt lock, there is a housing containing a control mechanism which is in particular capable of

  act on one or more operating rods extending beyond

  above and / or below this box, very often housed by a headrest which closes the recess groove at the joinery. As for the housing, it is also attached to the rear of said headrest, often by means of riveting means which appear, obviously in an unsightly manner, on the external side of this headrest. Furthermore, this housing is usually defined by two separate side walls which are joined, again by riveting or the like, after having disposed between

  they the parts of the control mechanism.

  It will already be noted that this assembly of the housing is a relatively delicate operation to carry out, since at the very moment of riveting one of the side walls on the previous one, it is advisable to maintain in position, at the level of the latter, the different parts of the control mechanism, not to mention that at the very moment of riveting these parts must themselves come into

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  suitable cooperation with the other side wall during assembly. In the case of aluminum or PVC joinery, the sections constituting them define, very often in rebate, a groove in the shape of a "U" or "T" capable of accommodating the various elements of a locking fitting of the cremone bolt type. or lock-bolt. Regarding the latter, a very specific range of products has been developed which takes advantage of such a groove to overcome the use of a shooting headrest

  to house the strands of operating rods extending

  above and / or below the control mechanism housing.

  However, to prevent access to the different parts that make up the latter in the absence of such a headrest, a solution had to be found to close the said housing in its part.

before.

  Thus, very often, this box is defined in the form of two half-shells capable of accommodating said control mechanism and which, once assembled, define a front wall at the rear of which come to engage the operating rod or rods

  extending above and / or below this housing.

  Under these conditions not only the two half-shells of the housing can be assembled once all the parts of the control mechanism suitably positioned in at least one of them, but also it is necessary, at first, bring the operating rod (s) in cooperation with this

control mechanism.

  Ultimately, the absence of a headrest weakens the rod during handling and packaging, which must also be adapted. Note, however, that to avoid assembly of this box in the presence of the operating rods, a solution is known which consists in acting, through the control mechanism, not directly on this or these operating rods, but on easels which extend the latter inside the housing. In sum after assembly of these, said

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  operating rods can be connected to the ends of these

  easels made accessible externally to the housing.

  It goes without saying that this poses the problem of this connection between easel and rod which, moreover, must be made inaccessible and therefore invisible in joinery rebate. Furthermore, in the context of the solution of a housing in the form of two assembled half-shells, the joint plane between the two parts closing this housing in the front part remains,

  in any case, visible which is, however, to be avoided.

  Ultimately, the object of the present invention aims to respond to the aforementioned problems, on the one hand by imagining a one-piece housing inside which the parts of the control mechanism can be introduced simply by gravity, while being perfectly guided and maintained there. On the other hand, by providing the access opening to this box, in the front part of the latter, it is quite easy to bring in cooperation the rods of operation of this lever with the control mechanism in particular at the same time to fit the joinery, that is to say during the installation on the latter of the various shape elements

and, therefore, the lever.

  Finally, on this front part, initially open, of the housing and through which we will have previously inserted

  all parts, can be attached a cover member.

  Insofar as this element then has the sole purpose of making the control mechanism inaccessible, it can be attached by simple means to the housing, in particular by clipping and / or by fitting. Note, in this regard, that this cover element can be designed in such a way that no element appears

any unsightly.

  In addition, since it is a part capable of being added only at the time of fitting the joinery, it can be personalized. Thus, by way of example on the visible rebate part of the joinery, this cover, for example made of plastic

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  injected, is able to receive any inscription, such as the brand of the hardware manufacturer, or even that of the

  carpenter or any other safety indication.

  Thus, the invention relates to a cremone bolt for window or door type carpentry, comprising a casing provided capable of taking position in a recess groove in carpentry rebate and accommodating a control mechanism comprising at least one toothed wheel, in particular a follower, to bring at least one operating rod, extending above and / or below said housing, in a locking or unlocking position, characterized in that the housing is in one piece and defined by two side walls substantially parallel and integral with a bottom, this box being open in the front part for the reception, through the latter, of the various parts of the control mechanism, in particular of the gear or sprockets provided capable of cooperating with holding means and guide that said side walls of the housing comprise, this front part of the latter also comprising fixing means a cover member provided with fixing means

complementary.

  According to a preferred embodiment, the fixing means associated with the housing and the complementary fixing means that the cover element comprises are

  defined type of interlocking and / or clipping.

  Other objects and advantages of the present invention

  will appear during the description which follows relating to

  to an embodiment which is given only by way of example

indicative and not limiting.

  Understanding this description will be facilitated by

  Referring to the attached drawing in which: - Figure i is a schematic representation in longitudinal section of the cremone bolt housing according to the invention; - Figure 2 is a schematic representation in section on II-II of Figure I; - Figure 3 is a top view of Figure 1;

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  - Figure 4 is a schematic representation in longitudinal section of the cover member; - Figure 5 is a schematic sectional view along V-V of Figure 4; - Figure 6 is a schematic representation of the mounting by clipping of the cover member on the front part of the housing; - Figure 7 is a representation similar to Figure 6 showing the mounting of the cover member by

  fitting on the front part of the housing.

  As more particularly visible in the figures of the attached drawing, the present invention relates to the field of cremones

  for door or window type carpentry.

  Such a cremone bolt i comprises a casing 2 provided capable of taking position in a recess groove in the joinery rebate which, for reasons of convenience and understanding of

  the invention has not been shown in the figures.

  Anyway this case 2 accommodates a control mechanism (not shown) comprising at least one toothed wheel, more particularly a follower 8, for bringing at least one operating rod extending above and / or below the housing 2 in

  a locking or unlocking position.

  Again, insofar as the invention does not relate particularly to the control mechanism, or to the operating rod or rods, these have not been shown in the attached drawing, taking account, however, that these elements are

known to those skilled in the art.

  In fact, the housing 2 is in one piece and defined by two side walls 3, 4 substantially parallel to each other and integral with a bottom 5 so that this housing 2 is open in the front part 6 for reception, through this last,

  different parts that make up the control mechanism.

  For this, in particular at the level of the side walls 3, 4 are provided, inside the housing 2, means for holding and

  guide 7 of these parts making up the control mechanism.

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  If we take the particular case of a follower 8, schematically represented in FIG. 3, said side walls 3, 4 have recesses 9 in the form of a cradle opening out at the front part 6 and in which the ends 11 can take position, 12 of the hub 13 of this follower 8. More particularly, the width 14 of the recesses 9 is defined substantially equal to the cylindrical section of the hub 13. In addition, internally to the housing 2, these recesses 9, 10 in the form of a cradle describe a semi portion -cylindrical for the reception of

  this cylinder corresponding to this hub 13.

  As is still visible in Figures 1 and 3, these side walls 3, 4 of a housing 2 can also receive other similar holding and guiding means 7A (cradle-shaped recesses for receiving the axis of a gear other than the follower 8 in particular of a reversing pinion having the function of reversing the direction of movement of one of the rods for operating the cremone bolt with respect to the other rod of maneuver, extending opposite direction and operated directly

by said follower.

  Such retaining and guiding means 7, 7A of a toothed wheel or the like, can advantageously be supplemented by other parts of the control mechanism in particular by the racks of rods or trestles which mesh, precisely, on these cogwheels like the follower or a pinion

inverter.

  Obviously such holding and guiding means can borrow many other embodiments depending on the part to be maintained and guided. In particular, on the internal side of the side walls 3, 4 can be formed longitudinal support flanges for holding and guiding parts in translation. Likewise and as visible in FIG. 1, at the bottom 5 of this box 2, these means can take the shape of a bearing surface 15 on which parts with linear displacement come to bear. In addition, in this bottom 5 can be provided grooves for guiding and maintaining in translation or

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  rotation of moving parts of the cremone bolt control mechanism 1. Note the numerous advantages which arise from such a design. In particular, during assembly of the housing 2, it is no longer necessary to position, individually, each of the parts of the control mechanism with respect to one of the side walls of this housing before coming to bring the latter on it. 'other side wall. Quite simply, in the present case, these parts of the control mechanism are inserted, by sliding, into this housing, from its front part 6. The positioning of the rotating parts is facilitated through cradle-shaped recesses 9, 10 which come to extend to the level of this front part 6 of the housing 2, therefore at the height of the front edges 16 of the

side walls 3, 4.

  This front part 6 of the housing 2 also advantageously comprises means 17 for fixing an element forming

  cover 18 provided with additional fixing means 19.

  Such fastening means 17, as well as the complementary fastening means 19, can be provided of type to

latching and / or interlocking.

  Figures 2, 4, 5 and 6 correspond to an embodiment where the cover element 18 is snapped onto the front part 6 of the housing 2. Thus, this cover element 18 has a section substantially in a "U" shape. suitable for covering the housing 2 in its front part 6. It has a front wall 20 from which extend, along the longitudinal edge 21, 22, parallel side walls 23, 24 provided capable of being superimposed, outside the housing 2, at the side walls 3 and

4 of the latter.

  On the internal side 25, these side walls 23, 24 of the cover element 18 comprise the complementary fixing means 19 in the form of a flange 26 forming a step, continuous or discontinuous, provided capable of cooperating with a fastening flange 27, here again of the continuous or discontinuous type, arranged on the external side

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  28 to the side walls 3, 4 of the housing 2 and corresponding, by

  Consequently, to the fixing means 17.

  Advantageously, the flanges 26 as visible in the figure and / or the fastening flanges 27 visible in particular in FIG. 2, are chamfered on their side coming to lie opposite one another at the time of fitting, so to make it easier. In fact, this just facilitates the crossing of the attachment flanges 27 associated with the housing 2 by the flanges

  26 of the cover element 18.

  As indicated above, both the flanges 26 and the attachment flanges 27 can be continuous or discontinuous. In fact, the same applies to the side walls 23, 24 of the cover member 18 which may be in the form of tongues. Moreover and as shown in Figures 4 to 6, a combination of these solutions is possible. In particular, if the cover member 18 can take, over a part of its length, a "U" shaped structure, it can also be defined, in places, by a simple front wall 20 on the longitudinal edges 22 of which extend, perpendicularly, tongues 29, 30 receiving, in turn, a flange 26 adapted to cooperate with a hooking flange 27, at the walls

side 3, 4 of housing 2.

  FIG. 7 corresponds to an embodiment o the fixing means 17 of the front part 6 of the housing 2, as well as the complementary fixing means 19, corresponding to the element

  forming a cover 18, are of the interlocking type.

  More specifically, said fixing means 17 are, on the external side 26 to the side walls 3, 4 of the housing 2, in the form of sections of hooking flanges 27A, under which are able to slide retaining pins 26A equipping, on the internal side 25, the lateral walls 23, 24 of the cover element 18 or also the internal side of tabs 29, 30 extending under the front wall 20 of this cover element 18.

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  Thus, during assembly, the cover member is first of all fitted onto the housing 2 before it is communicated with it a longitudinal displacement relative to the latter in order to allow the retaining lugs 26A, to slide under the corresponding hooking edges 27A. Obviously, such retaining pins 26A can be configured analogously to the rim 26 of the embodiment described above in the sense that they can be chamfered just like the hooking rim sections 27A so as to offer the operator the possibility of either fitting the cover element 18 onto the

  box 2, or clip one on the other.

  Insofar as such a cover element 18 has no real mechanical roles in the context of the operation of the cremone bolt, but that, quite simply, of closing the casing 2, moreover of the monobloc type, it is possible to design it made of a synthetic material, in particular by an injection molding process and its aesthetics can be treated with a view to improving the design of the cremone bolt 1, in its visible part in carpentry rebate. Given, moreover, that it is likely to be attached to the housing 2 by the carpenter himself, when the latter comes to equip a carpentry type door or window fittings

  adapted, we can consider personalizing it.

  In practice, this cover element 18 can bear, for example on its visible face of the front wall 20, one or more advertising or technical inscriptions in the form

  labels and / or resulting from the injection molding process.

  Such a solution cannot be proposed in the case of boxes in two parts which are necessarily pre-assembled in the factory, during the manufacture of the cremone bolt. Indeed, that would imply managements

  increased stocks for the manufacturer of these cremone bolts.

  Consequently, the invention responds effectively

to the problem posed.

  Although the invention has been described with reference to a particular embodiment, it is understood that it is in no way limited thereto and that various modifications can be made to it.

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  shapes, materials and combinations of these various elements,

  without departing from the scope and spirit of the invention.

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Claims (10)

Claims   1. Cremone bolt for window or door type carpentry, comprising a casing (2) provided capable of taking position in a recess groove in carpentry rebate and accommodating a control mechanism comprising at least one toothed wheel, in particular a follower ( 8), to bring at least one operating rod extending above and / or below said housing (2), in a locking or unlocking position, characterized in that the housing (2) is shaped monobloc and defined by two side walls (3, 4) substantially parallel and integral with a bottom (5), this housing (2) being open in the front part (6) for the reception, through the latter, of the various parts of the control mechanism, in particular of the gear (s) (8) provided capable of cooperating with retaining and guiding means (7, 7A) that comprise said side walls (3, 4) of the housing (2), this front part (6) of this last component still fixing means (17) of a cover element (18) provided with complementary fixing means (19).   2. Cremone bolt according to claim 1, characterized in that said means for holding and guiding (7, 7A) of a toothed wheel (8) are defined, at the side walls (3, 4), inside the housing (2), by recesses (9, 10) in the form of cradles opening out at the front part (6) of said housing (2) and in which the ends (11,   12) of the hub (13) or of the axis of said toothed wheel (8).   3. Cremone bolt according to any one of claims   previous, characterized in that the holding and guiding means are further defined by bearing surfaces (15) inside the housing (2) and on which are able to bear linear displacement parts.   4. Cremone bolt according to any one of the claims   above, characterized in that the holding and guiding means are supplemented by grooves at the bottom (5) of the 12 2798949   housing (2) for guiding and maintaining in translation or   rotation of moving parts of the control mechanism.   5. Cremone bolt according to any one of the claims   above, characterized in that the fixing means (17) as well as the complementary fixing means (19) are   provided with snap-in and / or interlocking type.   6. Cremone bolt according to claim 5, characterized in that the cover member (18) has a section substantially "U" shaped so as to come over the housing (2) in its front part (6) and comprises a front wall (20) from which extend, at the longitudinal edge (21, 22), parallel side walls (23, 24) provided capable of being superimposed, outside the housing (2), on the side walls (3, 4) of the latter; on the internal side (25), these lateral walls (23, 24) of the cover element (18), comprising the complementary fixing means (19) in the form of a flange (26) forming a step, continuous or discontinuous, provided capable of cooperating with a hooking flange (27), continuous or discontinuous, formed on the external side (28) to the side walls (3, 4) of the housing (2) and corresponding to the fixing means (17).   7. Cremone bolt according to the preceding claim, characterized in that the side walls (23, 24) of the forming element   cover (18) are in the form of tongues.   8. Cremone bolt according to any one of claims 6 or 7,   characterized by the fact that the cover element (18) takes, over a part of its length, a U-shaped structure and is defined, in places, by a simple front wall (20) on the longitudinal edges ( 21, 22) from which extend, perpendicularly, tongues (29, 30) receiving a flange (26) able to cooperate with a hooking flange (27) at the level of the   side walls (3, 4) of the housing (2).   9. Cremone bolt according to any one of claims 1 to 4,   characterized by the fact that the fixing means (17) of the front part (6) of the housing (2), as well as the complementary fixing means (19), corresponding to the element forming a cover 13 2798949   (18) are of the interlocking type, said fixing means (17) being, on the external side (26) to the side walls (3, 4) of the housing (2), in the form of sections of hooking flanges ( 27A), under which are able to slide retaining lugs (26A) fitted, on the internal side (25), side walls (23, 24) of the cover member (18) and / or the side internal tabs (29, 30) extending under the front wall (20) of this cover member (18).   10. Cremone bolt according to claims 6, 8 or 9, characterized   by the fact that the flange (26) or, as the case may be, the retaining pins (26A), on the one hand, and the hooking flanges (27; 27A), on the other hand, are chamfered on their side coming to lie opposite each other at the time of the nesting of the element   forming a cover (18) on the housing (2).