EP0992646A1 - Espagnolette or espagnolette lock for doors, windows or the like - Google Patents

Abstract

The lock comprises a main body within which a toothed boss (15) communicates with the lock bolt and handle assembly. The toothed boss communicates with a rack and pinion (17) that is connected to a carriage (18) that actuates the bolt rods (11). An internal space (13) allows full rotation of the boss such that single handle operation operates upper and lower bolt assemblies.

Description

The invention relates to a cremone bolt or bolt lock comprising a housing provided capable of taking position in a notch made for this purpose in the rebate of a door leaf, window or the like, this housing containing a control mechanism comprising at least one follower controlled in rotation by via a control handle, on this follower, with appropriate teeth, which mesh with one another rack, on the one hand, fitted to an operating rod or an easel connected to the latter, and, on the other hand, substantially, between said follower and a headrest at the back of which extends, above and / or below of the housing, or the operating rods.

The present invention will find its application in the field of the building hardware.

In fact, we already know a good number of cremones or locking bolts corresponding to the description above, but they all have a drawback related to their size.

In this regard, it should be recalled that the profiles from which joinery is designed such as doors, windows or the like tend to adopt sections of more and more reduced.

There are several reasons for this. The first is that solutions are constantly being sought to reduce the manufacturing cost, saving material by being a. Another reason, which is certainly equally important that the previous one is what we are looking for, for windows and patio doors, to get the surface most important glass for an opening dimension determined in a building. This problem is all the more crucial in case of renovation where it is customary to leave in places the frame of the existing window. This one is in done, dressed by means of the window frame renovation. Now, such an operation translates, inevitably, by reducing this glass surface.

We understand that to answer this problem you have to win on the thickness of the profiles, whether they are made of wood, aluminum or in PVC, coming to design the frame and, more particularly the opening frame. Now in the thickness of these profiles corresponding to the opening frame, must take position the elements corresponding to a fitting of locking, lever type or lever-type lock, all particularly, the central box housing the mechanism control.

Note, in this regard, that this control mechanism includes, at less, a follower mounted in rotation in this case and on which must be able to intervene a user by through the operating square of a handle or control button.

We already understand that all the efforts of transmission of movement are exerted on this follower.

In this regard, the latter receives at least one set of teeth on the periphery. suitable to mesh with a rack fitted at least one of the operating rods extending over it and / or below the case or an easel provided able to transmit movement to such a rod maneuver.

Usually, this housing accommodating the control mechanism is attached to the back of a headrest, which comes from to house, moreover, the operating rods once the cremone bolt or bolt lock in rebate of the said chassis opening.

The control mechanism of such a lever or lever-bolt can still be completed for other organs, such as reverse gear allowing transmission to two rods of maneuver extending, respectively, above and below of the case, displacements in opposite directions during of the locking or unlocking control. In in some cases, this function of the reverse gear is ensured by the follower himself.

By way of example, the document FR-A-2,722,826 describes, more in particular, a cremone bolt corresponding to this description taking into account that the follower receives, again, here, a bolt of locking which in the locked position is caused to extend through an opening in the rack arranged between the follower and the headrest and, of course, an opening provided for this purpose in the latter.

In any event, it will be noted that the depth of the case of this type of cremone bolt or locking bolt has a minimum dimension determined by the section of the follower and the extra thickness produced by the rear of the headrest, rack coming into gear on this follower.

On this it should be specified that the very hub of the follower presents a minimum section imposed, on the one hand, for mechanical strength issues and, on the other hand, by the largest section that can be adopted by the operating square the handle or the control button for this type of case.

So even if the other organs of such a mechanism command could take a position, in some cases in a case of lesser depth, it does not matter, this case depth is linked to the above data.

In these conditions it is advisable to practice in carpentry a notch with a depth corresponding to that of the housing and, this, over the entire height of the latter. Gold, specifically, assuming that this carpentry has a thin, in particular due to the presence of a glazing, this notching over a significant length, comes substantially weaken this profile.

On this, we will observe that it is known, through the document DE-A-44 09 420 a cremone bolt including the housing, housing the control mechanism has at its bottom a outgrowth which again requires the use of a strawberry or a chisel for landscaping, at the bottom of the groove of carpentry, housing for the reception of this outgrowth.

Anyway, the back wall of this outgrowth, in bottom of case, has been removed to define a opening in which the ends of the teeth of the follower coming to execute a rotation of at least one turn around. In fact, these teeth are, here, brought to emerge in outside the case. Also, if we want the rotation of the follower is not embarrassed, it is necessary to cut, so sufficient, the carpentry, at least up to this follower.

On this it is still necessary to specify, that it could be observed, as part of a first inventive step, that the holding and guiding in rotation of the follower were done, until then, only through the side walls of the housing. More particularly, this follower is provided, by and on the other, a circular boss kept rotating in openings of adjusted section in these side walls of the housing. However, such a conception already constitutes a constraint in the dimensioning of the follower.

In a second inventive step, it was noted that if the notching for the reception of the case is made of classic way using a strawberry or a chisel, in intervening from the rebate of the opening frame, therefore in a direction parallel to the plane of the latter, the access in the operating square of the follower, requires, in all case, the drilling of this chassis opening perpendicular to its plane.

From these observations it was imagined the invention which ultimately allows us to respond to the problem posed sense that it leads to a still deep box weaker without this resulting in a weakening the mechanical strength of the assembly, especially the retaining and guiding the follower. By the way, like this will emerge further in the description, this invention also meets the constraints of tapping the carpentry.

To this end, the invention relates to a cremone bolt or bolt lock comprising a housing provided capable of taking position in a notch made for this purpose in the rebate of a chassis opening door, window or the like, this housing containing a control mechanism comprising at least one controlled follower in rotation via a control handle, on this follower, provided with an appropriate toothing, coming to mesh a rack, on the one hand, equipping an operating rod or an easel connected to the latter and, on the other hand, registering, appreciably, between said follower and a headrest at the back of which extends, above and / or below said housing, or the operating rods, in the bottom of the housing being formed a semi-circular coaxial casing to the follower for receiving and guiding the latter, in the semi-cylindrical wall of this casing being provided a light in which comes to register, to be guided and maintained, a circular or semi-circular rim extending around the periphery of the follower hub.

In this regard, according to another characteristic of the present invention, in the headrest a light is provided for the slidingly receiving its thickness rack coming into gear on the follower.

Advantageously, the follower receives a locking bolt able to switch to the locked position outside the housing through an oblong opening provided for this purpose in the rack.

Furthermore, according to the invention, on the internal side of the housing the side walls of the latter are provided with recesses in shaped cradles adjusted for receiving bosses circulars equipping, on both sides, the follower.

Ultimately, as can be seen from the characteristics that have just been exposed, the case may no longer present a identical depth over its entire height. In fact, in the bottom of this case, to the right of the follower, can be provided a housing likely to receive the latter in part. Moreover, we just use the thickness of the wall defining this circular housing to ensure better support and guidance of the follower whose mechanical resistance, so the section can be minimized.

This translates, of course, for a semi-circular casing, to the back of the case, also of radius of curvature, relatively small. Also, we can first machine in carpentry a recess groove for the housing including the depth corresponds to that of the latter, while the bowl that should be left in the bottom of such groove for receiving the semi-circular casing, can be performed, not by an additional machining operation, but through the simple drilling that we just perform, perpendicular to the plane of this joinery, for the passage of the operating square.

Ultimately, through this bowl obtained by simple drilling, we weaken only very locally this carpentry, especially when its thickness is reduced by made of the presence of glazing which allows to be compliant applicable standards in the field.

Other objects and advantages of the present invention will appear during the description which follows relating to an embodiment.

• la figure 1 est une représentation schématisée et en élévation d'une crémone prenant position dans une rainure d'encastrement prévue à cet effet en feuillure d'un châssis ouvrant de fenêtre ou analogue ;
• la figure 2 est une vue de détail de la figure 1 illustrant, tout particulièrement, le positionnement du boítier de la crémone dans un entaillage strictement ajusté au niveau de la menuiserie ;
• la figure 3 est une représentation schématisée et en coupe du boítier et du mécanisme de commande d'une crémone conforme à l'invention ;
• la figure 4 est une représentation similaire à la figure 3, le fouillot étant équipé, ici, d'un pêne de verrouillage basculant ;
• la figure 5 est une représentation schématisée et en plan du chevalet équipé de la crémaillère venant s'engréner sur un fouillot de crémone conforme à la conception de la figure 4 ;
• la figure 6 est une représentation schématisée et en élévation du fouillot équipé de son pêne de verrouillage ;
• la figure 7 est une représentation schématisée et en coupe du boítier seul ;
• la figure 8 est une représentation de ce boítier en coupe selon VIII-VIII de la figure 7.

The understanding of this description will be facilitated by referring to the attached drawing in which:

• Figure 1 is a schematic representation in elevation of a cremone bolt taking position in a recess groove provided for this purpose in the rebate of a window opening frame or the like;
• Figure 2 is a detail view of Figure 1 illustrating, in particular, the positioning of the cremone box in a notch strictly adjusted at the carpentry;
• Figure 3 is a schematic representation in section of the housing and the control mechanism of a cremone bolt according to the invention;
• Figure 4 is a representation similar to Figure 3, the follower being equipped, here, with a tilting locking bolt;
• Figure 5 is a schematic and plan view of the bridge equipped with the rack from meshing on a bolt of gear lever according to the design of Figure 4;
• Figure 6 is a schematic representation in elevation of the follower equipped with its locking bolt;
• Figure 7 is a schematic representation in section of the housing alone;
• FIG. 8 is a representation of this box in section along VIII-VIII of FIG. 7.

As shown in the figures of the attached drawings, the present invention relates to a cremone bolt or bolt lock 1 for door, window or the like of which only the frame opening 2 has been shown schematically and in section in the figure 1.

In this regard, such a cremone bolt or bolt lock 1 takes position, very often, in a recess groove 3 provided for this purpose in rebate 4 of an amount 5, if applicable if necessary, a cross member 6. A specific notch 7 of greater depth 8, is still achieved at this rebate 4 for the reception of a housing 9 welcoming the control mechanism 10 of this lever or lever-bolt 1.

It should be noted in this regard, that if no more reference is made than a lever in the following description or in the accompanying drawings, this is only to make more clear the presentation of the present invention, this being still applicable to locks and bolts.

Anyway, above and / or below this box 9 come to extend the operating rods 11, 11A, to the back of a headrest 12 to which said said is attached housing 9.

As for the control mechanism 10, it comprises, at least, a follower 13 able to be controlled in rotation by via a control handle. For this purpose, this follower 13 has, in the central part of its hub 15, an opening 14 for receiving the operating square of a such control handle. On the periphery of said hub 15 of this follower 13 extends a toothing 16 on which comes mesh with a rack 17 equipping, either directly a operating rod 11, 11A, i.e. an easel 18 which is connected at least one of them 11.

However, in the context of a cremone bolt 1 comprising rods 11, 11A operating in opposition, one of these last 11A can be attacked by this easel 18 through a reversing pinion 19 which can be seen mounted in the housing 9, in Figures 3 and 4.

In the end, this easel 18 receives, under these conditions, a second rack 20 on which the toothing of the reverse gear 19, further engaged with a rack 21 made at the level of the operating rod 11A.

Note with regard to this reversing pinion 19, if it has been shown pivoting about an axis parallel to the headrest 12, we can perfectly imagine using a reverse gear whose axis of rotation is perpendicular to this headrest 12 and arranged, accordingly, between the latter and the bottom 22 of the housing 9. The rack 7 and the operating rod 11A come, then, to mesh on both sides of such a pinion inverter by coming between it and the walls side of said housing 9.

As already specified in the introductory part, this invention aims to respond to the problem of space of the housing 9 and, consequently, of the depth 8 of the notching 7 made in the joinery for its housing.

To this end and according to the invention, in the wall defining the bottom 22 of housing 9 is formed a semi-circular casing 23, coaxial with follower 13, for receiving and guiding this last, in the semi-cylindrical wall 24 of this casing 23 being provided, in addition, a light 25 in which comes join, to be guided and maintained there, a ledge 26 circular or semi-circular extending on the periphery 27 of the follower 13, it being understood, under these conditions, that the rack 17 associated, here, with the easel 18, comes to register, substantially, between the follower 13 and the headrest 12.

Finally, we observe that through a cremone bolt conforming to the invention, it is provided to maintain the periphery of the follower 13 which guarantees the latter a perfect mechanical strength, despite a hub 15 of very small section.

In addition, this holding and guiding the periphery of the follower 13 does not create any additional space, since it is made in the thickness 28 of the semi-cylindrical wall 24 corresponding to the housing 23. Note in this regard, that the rim 26 is itself defined to come and register in this thickness 28 without emerging from it at any time from the light 25, to avoid locking in rotation of the follower 13, once the case 5 positioned in the notch 7.

Furthermore, insofar as the housing 9 can have a shallower depth, except at the height of this nut 13, the depth 8 of this notch 7 may itself be more low.

It remains to achieve in the bottom 29 of this notching 7 the bowl 30 which will allow it to accommodate the semi-circular casing 23.

However, as recalled above, this semi-cylindrical casing is coaxial with the follower 13 so that this bowl 30 can be obtained by a simple drilling 31, carried out perpendicularly in the plane of the opening frame 2, of appropriate diameter 32, holding realizes that it is in any case necessary to carry out such a drilling for access to the operating square with a handle of control at the opening 14 of the follower 13.

In addition, as part of a window sash, a such bowl 30 weakens, that very locally, the profile in which the lever 1 is integrated.

In order to gain, still in depth of case 9, it has was imagined to integrate, at least in part, the function of holding and guiding the rack 17 to the headrest 12, taking into account, moreover, that this rack 17 must have sufficient mechanical strength therefore a minimum thickness for engagement with the follower 13.

Also, according to the invention, in said headrest 12 is provided a light 33 for reception, at least in part and of sliding in its thickness 34, of said rack 17.

Thus, by using the thickness 34 of the headrest 12, the depth of the housing 9 is gained, therefore, of the notching 7.

As provided above, the holding and guiding function of the rack 17 may only be partially ensured by the headrest 12. In particular, this rack 17 can still be maintained and guided through walls side 41, 42 of the housing 9 between which it extends also according to the invention. For this purpose, internally, at level of these side walls 41, 42 of the housing 9 are formed through guide grooves 50 at the front of this box 9 and in which also fits the rack 17, at its longitudinal sides 51, 52. From this way the rack 17 consolidates (stiffens) the connection between the headrest 12 and the housing 9.

It should be observed, as shown in Figures 4, 5 and 6, that this follower 13 of such a lever 1 can still receive a locking bolt 35 capable of tilting, in locking position, outside the housing 9, so that present salient with respect to the headrest 12.

In particular, to allow this passage of the bolt from locking 35 the rack 17 receives an oblong opening 36 insofar as it comes to be placed in front of the follower 13. As for the headrest 12, this is already provided a light 33 in which said rack 17 fits.

This is defined, in this case, by two branches parallel 37, 38 each provided with a toothing 39 capable of cooperate with teeth 16 adopting a provision symmetrical on either side of the locking bolt 35, at follower level 13.

Advantageously, in the side walls 41, 42 of the housing 9, internally to the latter, recesses 43 are provided in form of through cradles at the edge before these side walls, these recesses 43 being adjusted for the reception to circular bosses 44 fitted on both sides and on the other, the hub 15 of the follower 13.

The result of such a conception is that the box 9 can be of the monobloc type, and designed in particular by molding. Thus, the side walls 41, 42 and the wall peripheral 45 in particular the bottom 22, of this housing 9 form a single whole in which can take position the elements of the control mechanism 10, for introduction from the opening 46 at the front of this case 9, which considerably facilitates the mounting of such cremone bolt 1. However, a case 9 produced, thus, by molding, allows to obtain a high precision part. This case is in is therefore able to welcome perfectly adjusted the other parts of the control mechanism of the cremone bolt or bolt lock. Now, because of this self-adjustment of the different parts, those in movement are better maintained resulting in increased mechanical strength of the cremone bolt or bolt lock, therefore improved reliability.

Note that the presence of a reverse gear 19 does not prevent nothing getting this result. So, as seen in drawings, in particular in FIGS. 7 and 8, of other recesses in the form of cradles 47 can be provided at these side walls 41, 42 inside the housing 9, for the receiving the ends of axis 48 on which this is mounted reverse gear 19.

Ultimately, as is evident from the description which precedes the present invention advantageously responds, to the technical problem posed.

Claims (10)

Cremone bolt or locking bolt comprising a casing (9) provided able to take position in a notch (7) provided for this rebate effect of an opening frame (2) of door, window or the like, this housing (9) containing a control mechanism (10) comprising a follower (13) controlled in rotation by via a control handle, on this follower (13), provided with a suitable toothing (16), coming to mesh a rack (17), on the one hand, equipping a rod maneuver (11, 11A) or an easel (18) connected to the latter, and, on the other hand, registering, substantially, between said follower (13) and a headrest (12) at the rear of which extend, above and / or below the housing (9), the operating rods (11, 11A), characterized in that in the bottom (22) of the housing (9) is formed a semi-circular casing (23) coaxial with the follower (13) for reception and guiding the latter in the semi-cylindrical wall (24) of this housing (23) being provided a light (25) in which comes to register, to be guided and maintained, a ledge circular or semi-circular (26) extending around the periphery of the hub (15) of the follower (13). Cremone bolt or bolt lock according to claim 1, characterized by the fact that the circular or semi-circular rim (26) is defined to come and register in the thickness (28) of the semi-cylindrical wall (24) corresponding to the casing (23), this at the level of the light (25) without emerging through it. Cremone bolt or locking bolt according to any one of previous claims, characterized in that in the headrest (12) is provided with a light (33) for reception, at least in part and slidingly in its thickness (34) of the rack (17) coming to mesh on the follower (13). Cremone bolt or bolt lock according to claim 3, characterized by the fact that internally at the level of side walls (41, 42) of the housing (9) are made of guide grooves (50), opening out at the front of this housing (9) and in which the rack (17), at its longitudinal sides (51, 52). Cremone bolt or locking bolt according to any one of previous claims, characterized in that the follower (13) comprises a locking bolt (35) capable of switch to the locked position outside the housing (9) through an oblong opening (36) provided for this purpose in the rack (17). Cremone bolt or bolt lock according to claim 5 characterized by the fact that the rack (17) is defined by two parallel branches (37, 38) each provided with a teeth (39) able to cooperate with teeth (16) adopting a symmetrical arrangement on either side of the bolt locking (35) at the follower (13). Cremone bolt or locking bolt according to any one of previous claims, characterized in that internal side of the housing (9) the side walls (41, 42) of this last have recesses (43) in the form of cradles opening at the edge edge of these side walls (41, 42), these recesses (43) being adjusted for reception circular bosses (44) equipping on both sides the hub (15) of the follower (13). Cremone bolt or locking bolt according to any one of previous claims, characterized in that the housing (9) is of the monobloc type, the side walls (41, 42) and the peripheral wall (45), in particular, the bottom (22) of this housing (9) forming a single whole in which can take position the elements of the control mechanism (10) by introduction from the opening (46) at the front of this housing (9). Cremone bolt or locking bolt according to any one of previous claims, characterized in that it comprises operating rods (11, 11A) operating in opposition, one of the latter (11A) being attacked by the bridge (18) through a reversing pinion (19) mounted in the housing (9). Cremone bolt or locking bolt according to claim 9, characterized in that the reversing pinion (19) is mounted in the housing (9) pivoting about an axis (48) parallel to the headrest (12), the side walls (41, 42) of this housing (9) comprising, internally to the latter, recesses in form of cradles (47) for receiving the ends of axes (48) on which said reversing pinion (19) is mounted.

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