EP0928870B1 - Espagnolette or espagnolette-lock for door, window-door or the same - Google Patents

Description

The invention relates to a cremone bolt or door bolt, French window or the like, comprising, housed in a housing central control mechanism designed capable of operating at less an operating rod and comprising, on the one hand, elastic means for automatic return to position locking of the operating rod as well as means of manual control, more specifically an actuated follower by a control handle, to ensure in particular the unlocking of this operating rod and rearming elastic means and, on the other hand, a device for blocking able to maintain in its unlocked position the operating rod after opening the door leaf, French window or the like, and unlocking means capable of deactivate said blocking device when closing opening it on the frame to allow the recall in locking position of said operating rod.

The present invention will find its application in the field of the building hardware and concerns, more particularly the locking fittings.

In fact, it will be observed that it is already known to cremone bolts or lock bolts corresponding to the above description. The purpose of such cremone bolts is to facilitate door, patio door or analogous insofar as the operating rod or rods are automatically pushed back into their locked position on the influence of elastic recall means whose action is, precisely, released at the very moment when the opening is closed on the sleeping frame. In contrast, during unlocking and opening this opening, the operation executed by the user on a control handle has for consequence of bringing this or these operating rods into their unlocked position and ensuring the rearmament of said elastic means, while a blocking device appropriate comes, simultaneously, maintain in this position unlocked the operating rod (s) against the action of the jurisdiction constituting, substantially, said means of elastic recall.

Ultimately, such a cremone bolt, again, unlocking means which are able to deactivate the device blocking when closing the sash on the frame to allow the recall in the locked position of this or these operating rods.

A cremone bolt meeting this description has it all particularly described in document FR-2,500,874. In this case, the blocking device consists of a locking finger mounted tilting at the level of a headrest usually hosting the various organs of the cremone bolt or cremone bolt at the height of the edge before the opening. In fact, this locking finger acts in the direction of movement of this opening so that when it opens it comes switch automatically, in the direction of the frame, this under the impulse of a spring while, at the time of close this opening, the sleeping frame is able to push back this locking finger against said spring.

It should be noted that such a locking finger is extended, at the level of its internal part to the case containing the lever control mechanism through which it is, precisely, able to maintain the rod (s) of maneuver in their unlocked position, at the same time to open the sash and, as soon as this locking finger has been able be released from the sleeping frame.

In fact, such a solution has the disadvantage that the trigger mechanism is dissociated from a locking member of the cremone bolt or bolt lock. This results in effects not synchronous between the trigger and, more particularly, the bolt which is the first of these organs of lock to come into contact with a frame keeper sleeping. So either of these can come strike a member of this sleeping frame, for example, a strike.

In addition, such a locking finger must, by itself and by through its internally arranged locking lever to the housing, to oppose the action of the recall means elastic bands to recall the operating rod (s) in the locked position.

In fact, the inventive step of the present invention has consisted in separating the restraint function in position unlocked from the operating rod (s) of that consisting of deactivating this restraint function when close the door on the frame.

To this end, the invention relates to a cremone bolt or bolt lock for door, French window or the like comprising, housed in a central box, a control mechanism designed capable of actuate at least one operating rod and comprising, on the one hand, elastic means for the automatic recall in locking position of the operating rod, as well as manual control means, more particularly a follower operated by a control handle, to ensure in particular the unlocking of this operating rod and the resetting of the elastic means and, on the other hand, a blocking device able to maintain, in its position unlocked, the operating rod after opening the opening and unlocking means able to deactivate the blocking device when closing the door on the frame to allow the return to the position of locking of said operating rod, characterized by that said blocking device consists of a knee brace made up of at least two links connected to using a pivot, one of these links being further made integral by a joint, the rod or a bridge connected to the latter, while the other link is made integral by an articulation of said housing, this so that, in the unlocked position, the operating rod, the pivot and the two joints of this kneepad is located, substantially, in a same alignment parallel to the displacement of said rod or the easel to support this or the latter in a unstable equilibrium position.

As for the unlocking means, these can consist, substantially, in a control finger capable of repelling the knee brace when it is in its equilibrium position unstable to allow locking of the rod maneuver under the action of elastic means, this finger control can be associated with a latch bolt subjected to a spring in the locking position and comprising a member retainer capable of holding this latch bolt in a position unlocked or semi-unlocked, this retaining member can be designed capable of cooperating, directly or indirectly with this frame sleeping when closing the door to release said latch turn and, under the impulse of the control finger associated with the latter, ensure the locking of the rod maneuver.

The advantages of the present invention consist of that the operating rod (s) are kept in their unlocked position, against the action of the means elastic to ensure their return to the position of locking, by means of a mechanical assembly which is, in fact, in an unstable equilibrium position and which, therefore, can be easily unbalanced under a low intensity pulse. Also, to give this impulse, we imagined using the return spring, finally of low stiffness, which systematically brings back the latch turn in the locked position. In fact, because of this low stiffness of the return spring of the bolt locking, it can be easily maintained in its unlocked or semi-unlocked position when opening is open. To do this, the retaining member can be small size and easily operated by the sleeping frame, more particularly by the keeper with which is intended to cooperate the latch bolt when closing this opening. Finally, the solution according to the invention makes it possible to respond advantageously to the problem posed so far by the synchronization of the different moving parts at the time door lock.

• la figure 1 est une représentation schématisée du mécanisme de commande d'une crémone, plus particulièrement une crémone-serrure, conforme à l'invention ;
• la figure 2 est une représentation schématisée et en coupe de la genouillère constituant le dispositif de blocage destiné à assurer le maintien en position déverrouillée de la ou des tringles de manoeuvre contre l'action des moyens élastiques de rappel en position de verrouillage ;
• la figure 3 est une représentation schématisée et en coupe partielle du pêne demi-tour recevant les moyens de déblocage aptes à désactiver le dispositif de blocage sous forme d'une genouillère ;
• la figure 4 est une représentation schématisée et en coupe selon IV-IV de la figure 3 ;
• la figure 5 est une représentation schématisée en plan d'une lame ressort associée au pêne demi-tour pour rappeler en position active l'organe de retenue dont ce dernier est équipé.

The present invention will be better understood on reading the following description relating to the attached drawings in which:

• Figure 1 is a schematic representation of the control mechanism of a cremone bolt, more particularly a cremone bolt, according to the invention;
• Figure 2 is a schematic sectional representation of the toggle constituting the locking device for ensuring the maintenance in the unlocked position or the operating rods against the action of the elastic return means in the locked position;
• Figure 3 is a schematic representation in partial section of the latch bolt receiving the release means adapted to deactivate the locking device in the form of a toggle;
• Figure 4 is a schematic representation in section on IV-IV of Figure 3;
• Figure 5 is a schematic plan view of a leaf spring associated with the latch bolt to return to the active position the retaining member with which the latter is equipped.

As shown in Figure 1, the present invention relates to a cremone bolt or bolt lock for door, French window or the like, comprising, housed in a central housing 2, a control mechanism 3 designed capable of actuating at least an operating rod 4, 4A.

In this regard, it will be observed that a cremone bolt or bolt lock 1 can be fitted with such an extending operating rod above and / or below said central box 2, just as it can be provided, as shown in Figure 1, with two maneuvering rods 4, 4A extending, respectively, above and below the housing 2 and which, at through the control mechanism 3, can be brought to move in the same direction or in directions opposite. In the latter case, this mechanism of command 3 of the cremone bolt or cremone bolt 1 intervenes on one of the operating rods 4 via a motion reverser 5 known to the skilled person and one of which embodiment has been illustrated schematically, in this figure 1.

In addition, this control mechanism 3 can intervene on the or the operating rods 4, 4A, either directly or at by means of an easel 6 housed in the housing 2 and connected to its ends, by means of connecting means 7 suitable for this or these operating rods 4, 4A.

In fact, the present invention is more in particular, with bolts or bolts and locks, the control mechanism 3 comprises, on the one hand, means elastic 8 for automatic return to position locking of these operating rods 4, 4A and, on the other hand, manual control means 9 to allow the user to manually unlock these operating rods 4, 4A and resetting the means elastic 8.

In this regard, this cremone bolt or bolt lock 1 comprises, still, a blocking device 10 able to maintain, in their unlocked position, the operating rods 4, 4A after opening of the window corresponding to the door, French window or the like, as well as unlocking means 11 capable of deactivate this blocking device 10 when closing opening it on the frame and authorize, therefore, the return to the locking position of said rods of operation 4, 4A.

According to an exemplary embodiment, without limitation of the present invention, said manual control means 9 are constituted by a follower 12 comprising a housing 13 for reception a control handle operating square, this follower 12 acting on the operating rods 4, 4A, in particular by through the easel 6, using an organ drive 14 of appropriate configuration. On this follower 12 can also be mounted a crown 15 provided with a finger 16 capable of working on the tail 17 of a bolt U-turn 18 pushed back into its locked position under the influence of a return spring 19.

In this regard, elastic return means 20 can also intervene on the follower 12 to bring back systematically this and, therefore, the control handle, in a rest position after a locking command or unlocking.

It should also be noted that such control means textbooks 9 can also serve as assistance through elastic 8 intended to recall the operating rods 4, 4A in their locked position. More specifically when these operating rods 4, 4A encounter an obstacle resulting, for example, from the difficulty for an organ of locking, actuated by these operating rods 4, 4A, to enter into cooperation with the keeper arranged in correspondence on the sleeping frame, it may be that the thrust exerted by these elastic return means 8 or insufficient to overcome this obstacle. At that time, the maneuver can be completed using said means of manual control 9.

As part of a lock lever, it receives, again, a key element 21 capable of intervening, as the case may be, on a deadbolt 22 and / or on means 23 for locking the rods 4, 4A in the locking position and / or means 24 for blocking rotation of the follower 12 in the direction corresponding to an unlocking command.

That said, according to a feature of the present invention, the locking device 10, making it possible to maintain the operating rods 4, 4A in their unlocked position against the action of the elastic means 8, after opening of the opening, consists of a kneepad 25. This is composed of at least two links 26, 27 connected using a pivot 28, at one of their ends, respectively 26A, 27A, knowing that one 26 of these links is, in addition, at its other opposite end 26B, rendered secured by an articulation 29 of the operating rods 4 or 4A, in fact, the easel 6 connected to the latter. As for the other link 27, it is made integral, at its end 27B and by a joint 30, of the housing 2. Of more, these elements are so arranged that in the position of unlocking of the operating rods 4, 4A, the pivot 28 and the two joints 29, 30 of this toggle joint 25 come lie, substantially, in the same parallel alignment 31 displacement 32 of these operating rods 4, 4A or else bridge 6, to support, in particular the latter, in an unstable equilibrium position.

Advantageously, this cremone bolt or bolt lock 1, the object of the invention further comprises assistance means 33 for guarantee that this toggle support 25 is maintained in this unstable equilibrium position all the time where the door opening, is open and as long as this balance unstable is not intentionally broken by means of release 11 intended, specifically, to deactivate the device blocking 10 when closing the door on its frame sleeping.

According to a preferred embodiment, these means assistance 33 consist of a spring 34, of low stiffness, able to maintain, at the height of the pivot 28, the toggle joint 25, when the latter is in said unstable equilibrium position, bearing against a stop 35 provided for this purpose inside case 2.

As for the unlocking means 11, as already specified more high, they are provided adept at breaking this unstable equilibrium of the knee brace 25 of course in a direction opposite to the stop 35, this at the precise moment when the opening is closed on its frame sleeping in order to allow the operating rods 4, 4A to return to their locked position automatically. According to the invention, the unlocking means 11 consist of a control finger 36 associated with the tail 17 of the latch turn 18 and which, under the impulse of the spring 19 intended to recall said U-bolt 18 to its position of locking, is provided capable of pushing the toggle switch 25 off so as to offset, slightly the pivot 28 relative to the alignment 31 of the joints 29, 30. This results, by relative to this pivot 28, a torque exerted by said links 26, 27 under the influence of the easel 6 repelled by the means elastic 8.

In fact, such unlocking means 11 are further supplemented. by a retaining member 37 capable of retaining the latch bolt 18 in an unlocked or semi-locked position when the opening is open. This retaining member 37, recalled, automatically in an active position under the influence of a return spring 38, is furthermore intended to be ordered and therefore deactivated to release said latch bolt 18 by the sleeping frame, preferably the keeper fitted to the latter and intended to accommodate said latch bolt 18.

According to an advantageous embodiment, this retaining member 17 is directly integrated into the head 18A of the latch bolt 18 and is in the form of a lever 39 housed in a groove 40 formed at the dorsal face 50, opposite to that biased 51 of this head 18A of the latch bolt 18. This groove 40 and therefore said lever 39 extend parallel to the displacement of the latter. In fact, this lever 39 is mounted pivotally in this groove 40, about an axis 52 vertical, perpendicular to the movement of said latch bolt 18.

In addition, at the outer edge 53 of this lever 39, is formed a cutout 54 capable of cooperating, in the active position of this retaining member 37, with a retaining flange 55 provided at this effect at the housing 2.

Finally, said lever 39 is extended, beyond its axis of pivot 52, by a return 56 on which the return spring 38 in the form, preferably, of a leaf spring fixed to the rear of the head 18A of the latch bolt 18. The shape of this leaf spring 38 has been shown in figure 5.

In fact, it will be observed that this return 56 extending the lever 39 beyond its pivot axis 52 also comes lodge in a groove 57 which in this case extends to the rear of said head 18A of the latch bolt 18. The bottom of this groove 57 serves as a stop against which the return 56 is applied under the impulse of leaf spring 38 corresponding to the active position of the retaining member 37.

In addition, to allow the retaining member 37 to fade during the retraction of the latch bolt 18, the outer edge 53 of the lever 39 facing the retaining rim 55, is shaped defined without steps to authorize this maneuver.

Finally, the lever 39 is still designed capable of cooperating with the sleeping frame, more particularly, the keeper intended for receive the latch 18, when closing opening it, in order to release the latch bolt 18. Also, this lever 39 comprises, along its part 58 remaining in all the salient cases with respect to the front edge of the housing 2, a control finger 59 in the form of a boss at the level of its outer edge 53. In fact, this control finger 59 presents itself protruding from the dorsal face 50 of the head 18A of the latch turn 18 and is oriented, therefore, towards of said door frame.

Thus, the mode of operation of such a lever or lock-bolt 1, starting from the locking position adopted when the door or window is closed, consists of if necessary after unlocking the key element 21, at activate the control means 9 from which the unlocking of operating rods 4, 4A and resetting elastic means 8 while the toggle 25 is brought in its unstable equilibrium position resulting from alignment of its pivot 28 with the joints 29, 30. This knee brace 25 is then held in this position of unstable equilibrium through assistance means 33 that defines the spring 34 capable of holding the pivot 28 of the toggle 25 against the stop 35.

In fact, the action exerted at this moment by the user on the control handle and therefore on the follower 12 that defines, substantially, the manual control means 9, leads, also, at the back of the latch bolt 18 so that the opening can be opened at this time.

When the user comes to relax his action on said handle control, the latch bolt 18, driven by the spring 19 attempts to regain its locked position. Speaks, then, the retaining member 37 which, being held in position activated by the return spring 38, cooperates with the retaining rim 55 formed at the level of the housing 2 for retaining said U-bolt 18 in its unlocked position or, preferably, semi-unlocked.

When closing the door on the sleeping frame, the action strike plate on the biased face 51 of the latch bolt 18 produced, first of all, the decline of the latter. Then when this U-bolt 18 is able to enter this strike, it activates the control finger automatically 59 of the lever 39 so as to make the retaining member 37 inactive allowing this latch bolt 18 to reach its fully locked position, bringing the control finger 36 secured to the tail 17 of this latch bolt to repel the knee brace 25 and, therefore, to offset it from the position of unstable equilibrium which it occupied, which comes to free the elastic means 8 thereby ensuring the return to locking position of the operating rods 4, 4A.

Claims (10)

1. Espagnolette or espagnolette-lock for a door, French window or the like, including, accommodated in a central casing (2), a control mechanism (3) designed so as to be capable of actuating at least one operating rod (4, 4A) and including, on the one hand, springy means (8) for automatically restoring the operating rod (4, 4A) into the locking position, as well as manual control means (9), in particular a tumbler (12) actuated through a control handle, for ensuring namely the unlocking of this operating rod (4, 4A) and the resetting of the springy means (8) and, on the other hand, a locking device (10) capable of maintaining the operating rod (4, 4A) in its unlocked position after the opening of the leaf of the door, French window or the like, and unlocking means (11) capable of de-activating said locking device (10) when closing the leaf against the sash-frame, in order to allow restoring said operating rod (4, 4A) into locked position, characterised in that said locking device (10) consists of a knuckle joint (25) comprised of at least two connecting rods (26, 27) connected to each other by means of a pivot (28), one of these connecting rods (26) being, in addition, made integral, through a hinged joint (29), with the operating rod (4, 4A) or a support (6) connected to the latter, while the other connecting rod (27) is made integral, through a hinged joint (30), with said casing (2), this so that, in the unlocked position of the operating rod (4, 4A), the pivot (28) and both hinged joints (29, 30) of this knuckle joint (25) are located substantially in one and the same alignment (31) parallel to the displacement (32) of said operating rod (4, 4A) or of the support (6), in order to sustain the latter in a position of unstable balance.
2. Espagnolette or espagnolette-lock according to claim 1, characterised in that it includes assisting means (33) for ensuring maintaining this knuckle joint (25) in its position of unstable balance during the complete period during which the leaf of the door, French window or the like is open and as long as this unstable balance is not voluntarily broken by the unlocking means (11) capable of de-activating the locking device (10) when closing the leaf against its sash-frame.
3. Espagnolette or espagnolette-lock according to claim 2, characterised in that the assisting means (33) consist of a spring (34), of a low stiffness, capable of maintaining, at the level of the pivot (28), the knuckle joint (25), when the latter is in said position of unstable balance, resting against a stop (35) provided for this purpose inside the casing (2).
4. Espagnolette or espagnolette-lock according to any of the preceding claims, including, in addition, a spring-bolt (18) with automatic restoring into locking position under the action of a spring (19), characterised in that the unlocking means (11) consist of a control pawl (36) associated to the shaft (17) of the spring-bolt (18) and which, under the action of the spring (19) aimed at restoring the latter into its locking position, is so designed as to be capable of pushing back the knuckle joint (25) so as to offset the pivot (28) with respect to the alignment (31) of the hinged joints (29, 30), said unlocking means (11) being completed with a retaining organ (37) capable of retaining the spring-bolt (18) in an unlocked or partially unlocked position when the leaf is open, this retaining organ (37) also being designed so as to be controlled, and thus deactivated, to release said spring-bolt (18) by the sash-frame, in particular the keeper provided for on the latter and aimed at receiving said spring-bolt (18).
5. Espagnolette or espagnolette-lock according to claim 4, characterised in that the retaining organ (37) is directly integrated into the head (18A) of the spring-bolt (18) and is in the form of a lever (39) accommodated in a groove (40) provided for at the level of the back face (50), opposite the bevelled one (51) of this head (18A) of the spring-bolt (18), this groove (40) extending parallel to the displacement of the latter, while the lever (39) is pivotally mounted in said groove (40), about a spindle (52) perpendicular to the displacement of said spring-bolt (18) and includes, at the level of its external edge (53), a cut-out (54) capable of co-operating, in the active position of this retaining organ (37), with a retaining rim (55) provided for this purpose at the level of the casing (2).
6. Espagnolette or espagnolette-lock according to any of claims 4 or 5, characterised in that the retaining organ (37) is automatically restored into an active position under the action of a restoring spring (38).
7. Espagnolette or espagnolette-lock according to claims 5 and 6, characterised in that the lever (39) is extended, beyond its axis of pivotment (52), by a bend (56) on which is capable of acting the restoring spring (38), preferably in the shape of a blade spring fixed at the rear of the head (18A) of the spring-bolt (18).
8. Espagnolette or espagnolette-lock according to claim 7, characterised in that the bend (56) extending the lever (39) beyond its axis of pivotment (52) accommodates itself in a groove (57) which extends at the rear of the head (18A) of the spring-bolt (18), the bottom of this groove (57) acting as a stop against which said bend (56) is applied under the action of the restoring spring (38), corresponding to the active position of the retaining organ (37).
9. Espagnolette or espagnolette-lock according to any of claims 5 to 8, characterised in that the outer edge (53) of the lever (39) in front, of the retaining rim (55) in the casing (2) is defined without a step, in order to allow this retaining organ (37) to withdraw during the drawing back of the spring-bolt (18) into unlocking position.
10. Espagnolette or espagnolette-lock according to any of claims 5 to 9, characterised in that the lever (39) includes, alongside its portion (58) that remains in all cases protruding with respect to the front edge of the casing (2), a control pawl (59) in the shape of a boss at the level of its outer edge (53), this control pawl (59) being protruding with respect to the back face (50) of the head (18A) of the spring-bolt (18), so as to be capable of co-operating with the sash-frame, in particular the keeper aimed at receiving said spring-bolt (18) when closing the leaf of the door, French window or the like against its sash-frame.

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