EP2907947B1 - Locking device for semi-fixed door or window leaf - Google Patents

Description

The invention relates to a locking device for a semi-fixed door or window leaf mounted to pivot on a fixed frame and cooperating, in the closed position of said door or window, with a movable leaf coming in recovery.

The present invention will find its application in the field of building hardware and relates, more particularly, to locking devices for semi-fixed leaf in the frame of doors or windows comprising at least two leaves.

Numerous locking devices are already known for the semi-fixed leaf of doors or windows corresponding to the above description.

In particular, in the context of doors or windows provided with two leaves without a central mullion, when closing such a joinery, it is first of all pushed back into the plane of the fixed frame a first leaf on which is closed the second leaf overlapping their front upright.

In general, it is this second leaf, called the service leaf or mobile leaf, which is fitted with the locking hardware of the cremone or lock-type locking fitting, insofar as its front upright, by covering the front upright of the first leaf, said semi-fixed leaf, necessarily ensures the maintenance of this second leaf locked against the fixed frame.

However, the semi-fixed leaf is also equipped with a locking device to prevent it from opening automatically when the mobile leaf is opened, but also to keep it individually locked and secure on the frame. dormant after closing this mobile leaf.

Very often, this locking device is in the form of an attached latch, using a fixing support, in the rebate of the front upright of this semi-fixed leaf. This latch is slidably mounted at the level of this fixing support between at least one unlocked position and a locking position in which one end of this latch is pushed into a projecting position, so as to cooperate with a keeper arranged in correspondence on the dormant frame. In this regard, to allow such cooperation, such a latch is necessarily located near the upper and / or lower angle of said front upright of this semi-fixed leaf.

It is also known from the document FR-2,959,769 , a locking device comprising, as before, a lock slidably mounted on a fixing support in the form of a box capable of being attached to the rebate of the front upright of the semi-fixed leaf. More particularly, this lock is subjected to the action of elastic return means tending to push it back into the locking position so that one end of this lock protrudes from the housing so as to cooperate with a keeper on the lock. dormant frame.

Substantially, this keeper is associated with a locking element movable in translation in rebate of the fixed frame so as to occupy a locking position and a position of simple retention in the closed position of the semi-fixed leaf.

In short, this locking element is in the form of a double-opening keeper, one of which is deeper than the other and which, by displacement of this locking element, are liable to appear under the end. protruding from the lock.

Thus, in the first opening, which is shallower, partially penetrates this end of the lock, forming a locking member, when the locking element is in its so-called open position, while it is housed in the second opening, deeper, when this locking element is pushed back into its closed position.

More particularly, this locking element is pushed back into this closed position against the action of elastic return means, this under the influence of a cam associated with the mobile leaf. In other words, when the mobile leaf is closed on the semi-fixed leaf, this cam acts on the locking element by pushing it back from its open position into its closed position resulting in the engagement of the end of the latch from the shallow opening into the deeper opening.

It should also be noted that this end, forming the locking member of the lock, is bevelled and comes to cooperate with ramps delimiting on either side the shallower opening. Thus, when the mobile leaf is open and the locking element is pushed back by the elastic return means in its open position, the semi-fixed leaf is kept closed on the fixed frame thanks to this tapered end of the held lock. engaged in the shallowest opening. However, under the influence of the interaction between a ramp of this opening and the tapered shape of the end of the lock, but also under the effect of a traction in the direction of the opening exerted on the semi-circular leaf. fixed, the lock is pushed back into an unlocked position, in the housing of the fixing support, finally allowing the opening of this semi-fixed leaf. Note that the lock is pushed back in its unlocking direction against the action of elastic return means ensuring its systematic return to the locking position. This makes it possible, in particular, to avoid the unexpected opening, therefore without user intervention, of the semi-fixed leaf.

Finally, through this solution of the state of the art, once the mobile leaf has been opened, the semi-fixed leaf remains closed on the fixed frame, provided that a simple pull on this semi-fixed leaf allows it to open without letting it open. The user has to perform an additional unlocking command. In addition, under the action of the cam fitted to the mobile leaf, when the latter is closed, the locking element simultaneously ensures the locking of the leaf. semi-fixed so that it is not simply kept closed against the fixed frame, but perfectly locked.

• l'équipement du vantail mobile d'une came spécifique ;
• l'implantation sur le cadre dormant d'un élément de verrouillage de configuration particulière, qui plus est mobile en feuillure du dormant.

However, this known solution turns out to be particularly complex since it requires:

• equipping the mobile leaf with a specific cam;
• the installation on the fixed frame of a locking element of particular configuration, which moreover is movable in the rebate of the fixed element.

Note that this relative mobility of this locking element necessarily leads to weakening compared to a keeper firmly fixed to the joinery. In addition, this mobility can be compromised by possible dirt on the rebate of the frame.

Furthermore, in principle, this locking device, as described in this document FR 2,959,769 , has many other drawbacks. First of all, like the locking device in the form of a latch, it can only ensure the locking of the semi-fixed leaf at the upper and / or lower ends of its front upright. In fact, in both cases, action is taken on a latch or latch slidably mounted on a fixing support and one end of which is capable, in the locking position, of being sufficiently protruding to cooperate with a keeper disposed, in correspondence, on the dormant frame.

In short, if it is common, through the cremone-type locking fitting fitted to the service leaf to secure it against the fixed frame at multiple points distributed around the periphery of this service leaf, the locking devices for semi-fixed leaf as described above, do not make it possible to obtain such securing at multiple points.

To obtain such a result, it is also necessary to equip this semi-fixed leaf with a locking gear capable, for example, of being actuated through a driver that includes the locking fitting mounted on the service leaf.

In addition, if the locking device corresponding to the document FR 2 959 769 , keeps the semi-fixed leaf closed after opening the service leaf, so that only voluntary traction exerted on the semi-fixed leaf leads to its opening, its efficiency is quite relative to ensure this function in an application to large size leaves.

In this case, either the restraint provided by the end of the lock, forming a locking member, in cooperation with the shallow opening in the keeper is insufficient and the slightest gust of wind leads to the opening of this semi-closed leaf. fixed, or the restraint is excessive and makes it difficult to operate this leaf.

The object of the present invention is to remedy these drawbacks.

Note that we still know from the document EP1074683 , a fitting for joinery comprising at least three leaves, without central mullion. This locking fitting is in the form of a lock fitted to the lower cross member of the central leaf. It is provided with a latch in the form of a rod sliding under a faceplate and comprising an end capable of acting in the manner of a bolt or a cam with an adjacent service leaf, this by extending in a projecting manner. relative to the front upright of said central leaf. Thus, after having closed the latter, then by closing the adjacent service leaf, the latter pushes, through its end in the form of a bolt, the latch of the bolt into a locking position, resulting in the engagement of the roller. with which the latch is fitted in a keeper bridged in correspondence on the fixed frame of the joinery.

Although this fitting responds to the problem of locking a semi-fixed leaf by closing a service leaf, it does not ensure that this semi-fixed leaf is kept closed when the adjacent service leaf is open.

It is also known from the document EP 2,581,530 a locking device for a semi-fixed door or window leaf, again in the form of a latch taking up position in the lower part and in the rebate of the front upright of the semi-fixed leaf. More particularly, this latch comprises a rod, a first end of which defines a locking member able to cooperate with a keeper disposed in correspondence on the lower cross member of the fixed frame of the joinery. The opposite end of this rod forms an operating member on which acts a control member that bears, in the rebate, the service leaf. Thus, by closing the latter, this control member pushes, through the operating member, the rod in the locking position, against the action of the first elastic return means. Second elastic return means act on this same rod to push it back into a locked position, between the unlocked position and the locked position. In this locking position, said locking device ensures that the semi-fixed leaf is kept closed when the service leaf is open. Incidentally, the lock, more exactly the box inside which the rod is slidably mounted, carries, on the front face, a keeper inside which can be engaged a locking member, in the form of a roller, of the cremone type locking fitting, carried by the service leaf.

Thus, it was thought to reflect the movement of the rod of a latch, not on a locking member, but several locking members distributed along such a cross member, or even to retransmit its movement to a rod extending the along the rear upright of this semi-fixed leaf. Also, it is possible to ensure multi-point maintenance of the semi-fixed leaf on the fixed frame or multi-point locking when the service leaf is itself closed.

This solution makes it possible to respond to the problem of securing a semi-fixed leaf on the fixed frame in a manner similar to the service leaf.

Above all, it was imagined that this solution would be able to ensure, in a particularly advantageous and efficient manner, the maintenance of this semi-fixed leaf closed on the fixed frame when the mobile leaf is open, whatever the size of this leaf. semi-fixed leaf. Indeed, as part of an inventive approach, it was imagined to ensure this maintenance in the closed position of the semi-fixed leaf by multiple locking members, subject, individually, only to part of the constraints to which the leaf is subjected. semi-fixed when pushed back by the wind tending to open it. In short, even if the retaining force provided by all the locking members can be large enough to prevent the unexpected opening of a large semi-fixed leaf, the retaining force provided, individually, by each locking member being relatively weak, facilitates their release from their defined complementary locking member, such as a keeper, in the event of intentional manipulation of this semi-fixed leaf.

In addition, the very actuation of the rod by means of the movable leaf, when the latter is closed, is also facilitated due to a movement of the rod occurring, not parallel to the axis of the leaf. pivoting of this mobile leaf, but perpendicularly. In addition, an installation at the height of a cross member, depending on the case, upper or lower of the locking device on the semi-fixed leaf, also allows a certain multiplication of the movement and, therefore, less stresses between the leaf of service and the semi-fixed leaf when actuating this or these locking device (s). This is hardly possible if locking devices are installed in the form of a bolt along the front upright of the semi-fixed leaf.

Thus, the invention relates to a locking device for a semi-fixed leaf of a door or window pivotally mounted on a fixed frame and cooperating, in the closed position of said door or window, with a movable leaf coming to cover it, comprising a rod provided , along its length, at least one locking member able to cooperate with a complementary locking member, in the form of a roller and a keeper, this rod being slidably mounted on a fixing support, between an unlocked position and at least one locking position, said rod further comprising an end forming an operating member for pushing it back into a locking position in which the locking member (s) are able to cooperate, each with a complementary locking member, characterized in that ' it comprises first elastic return means tending to push said rod back into its unlocked position and second elastic return means tending to push this rod back into a locking position, between the unlocked position and the locked position, against the action of the first elastic return means.

The invention also relates to a door or window comprising at least two pivoting leaves including a service leaf covering, in the closed position of the door or window, on a semi-fixed leaf provided, with a rebate of its horizontal cross member. upper and / or lower, of a locking device according to the invention, comprising a rod provided, over its length, with at least one locking member and slidably mounted on a fixing support, said rod comprising one end forming a operating member with which a cam fitted to the service leaf is brought to cooperate in order to push, when closing said service leaf, said rod into at least one locking position, against the action of first and second elastic return means , locking position in which the locking member (s) are brought into at least one locking position in cooperation with a complementary locking member re equipping the fixed frame of said door or window.

• la figure 1 est une représentation schématisée d'une fenêtre à deux vantaux dont le vantail semi-fixe est pourvu de dispositifs de verrouillage selon l'invention
• la figure 2 est une représentation schématisée et en perspective de la coopération entre une came destinée à équiper le vantail de service et la tringle d'un dispositif de verrouillage selon l'invention ;
• la figure 3 est une représentation schématisée en élévation et en coupe partielle du dispositif de verrouillage ;
• la figure 4 est une représentation schématisée, partielle et vue de dessous du dispositif de verrouillage ;
• la figure 5 illustre la coopération entre un organe de verrouillage et organe de verrouillage complémentaire pour repousser la tringle du dispositif de verrouillage depuis une position de blocage en direction de sa position de déverrouillage lors de l'ouverture ou de la fermeture du vantail semi-fixe.

The understanding of this description will be facilitated by reference to the accompanying drawings in which:

• the figure 1 is a diagrammatic representation of a window with two leaves, the semi-fixed leaf of which is provided with locking devices according to the invention
• the figure 2 is a schematic and perspective representation of the cooperation between a cam intended to equip the service leaf and the rod with a locking device according to the invention;
• the figure 3 is a diagrammatic representation in elevation and in partial section of the locking device;
• the figure 4 is a schematic, partial and bottom view of the locking device;
• the figure 5 illustrates the cooperation between a locking member and complementary locking member for pushing the rod of the locking device from a locking position towards its unlocking position during the opening or closing of the semi-fixed leaf.

As depicted in the figure 1 of the attached drawings, the present invention relates to a door or window 1 comprising at least two leaves 2, 3 mounted to pivot on a fixed frame 4 and of which at least one leaf, called service or mobile leaf 2 overlaps on a so-called semi-fixed leaf 3.

As usual, these leaves 2, 3 are mounted to pivot about vertical axes at the height of their rear uprights 5, 6 on said fixed frame 4.

While the service leaf 2 overlaps through its front upright 7 on the front upright 8 of the semi-fixed leaf 3.

The invention also relates to a locking device 9 for the semi-fixed leaf 3, visible in the figures 2 to 4 drawings.

This locking device 9 is designed to be installed in the rebate of the lower 10 and / or upper 11 cross member of this semi-fixed leaf 3.

Thus, this locking device 9 comprises a rod 12 provided over its length with at least one locking member 13, shown in the form of a roller in the figures, able to cooperate with a complementary locking member 14, for example under in the form of a keeper, located at the level of the fixed frame 4.

This rod 12 is slidably mounted on a fixing support 15 which can substantially take the form of a faceplate 16. Thus, as illustrated in the figures, the rod 12 can be slidably mounted at the rear of this faceplate 16 by means of the or locking members 13 fixed on the rod 12 through oblong openings 17 in the faceplate 16.

Of course, other sliding assemblies of the rod 12 on such a fixing support 15, in particular formed by a faceplate 16, can be envisaged, without departing from the object of the present invention.

Note that this rod 12 is movable in translation between an unlocked position 18 and at least one locking position 19 in which the locking member (s) 13 are brought into a locking position in cooperation with the complementary locking member (s) 14 .

One end 20 of the rod 12 forms an operating member through which this rod 12 can, precisely, be pushed back into at least its locking position 19.

Substantially, this end 20 of the rod 12 can be equipped with a feeler 21 on which can intervene, more easily, this action attempting to push the rod 12 into said locking position 19. Just like the locking member (s). 13, the feeler 21 can equip this end 20 of the rod 12 through an oblong opening 22 adapted in the faceplate 16 so as to be able to extend in front of the latter.

According to the invention, the locking device 9 fitted to the semi-fixed leaf 3 and therefore the rod 12 of this locking device 9, is forced to be pushed back into its locking position 19 under the impulse of the closing of the leaf of service 2. For this purpose, the latter advantageously comprises a defined cam 23 capable, during this closing, of cooperating with said end 20, forming an operating member, of the rod 12 of the locking device 9. In the mode of the illustrated embodiment, this cooperation takes place through the feeler 21 defining, substantially, this end 20 of said rod 12.

According to an advantageous embodiment of the invention, the locking device 9 and / or the cam 23 comprises adjustment means 24; 25 allowing their adjustment in position on, as the case may be, the semi-fixed leaf 3 or the service leaf 2. Such adjustment means 24, 25 make it possible to meet the manufacturing tolerances of the joinery or even the variable positioning of a service leaf 2 relative to a semi-fixed leaf 3 in a fixed frame 4, or even to the maladjustment of this positioning of the leaf (s) 2, 3 /

Substantially, the adjustment means 25 associated with the cam 23 may be in the form of an eccentric which, by rotation, makes it possible to adjust the profile of the cam 23 to the aforementioned constraints.

As for the adjustment means 24, they may consist of means for adjusting the position of the fixing support 15 on the semi-fixed leaf 3, therefore in the rebate of the lower 10 or upper cross member 11 of the latter.

However, in the remainder of the description, reference will be made to a preferred embodiment of these adjustment means 24.

According to the invention, the rod 12 is subjected to first elastic return means 26 tending to push it back in the direction of its unlocked position 18, in particular from its locking position 19.

These first elastic return means 26 are in the form of a helical spring 27 on one end 28 of which the rod 12 bears directly or via the sensor 21, so as to cause the compression of this spring 27, held in place. in abutment on the side of its opposite end 29, when said rod 12 is pushed back in its locking direction 19.

This locking device 9 advantageously comprises second elastic return means 30 pushing the rod 12 into a locking position 31, between the unlocked position 18 and the locking position 19.

Substantially, these second elastic return means 30 are defined by the same helical spring 27 on the end 29 of which bears, directly or via the feeler 21, said rod 12 to compress this spring 27, held in abutment at its opposite end 28, when the rod 12 is pushed back into the unlocking position 18.

According to an advantageous embodiment, the spring 27 is substantially prestressed between two end walls 32, 33, of a housing 34 formed in a housing 35 associated with the fixing support 15, in this case the faceplate 16 in the mode. particular embodiment, described here. Furthermore, the drive fingers 36, 37 which the rod 12 comprises, or the sensor 21 in the illustrated embodiment, come to bear on the ends 28, 29 of the spring 27 through appropriate openings in the walls d. end 32, 33 of said housing 35.

Thus, it is clearly understood that by pushing back the rod 12, either through its end 20 or, as will be described below, by means of the locking member (s) 13, in one or the other direction of unlocking or locking, starting from the locking position 31, this results in the compression of the spring 27 in its housing 34.

In view of the above description and the accompanying drawings, it appears that the rod 12 is held in the locking position 31 under the opposing influence of the first 26 and second 30 elastic return means substantially defined by the spring 27

Specifically, according to the invention in this locking position 31, the locking members 13 are themselves located in a locking position 38 in relation to complementary locking members 14, this between a locking position and an unlocked position. In this locking position 38, the locking members 13 are defined capable, in cooperation with the complementary locking members 14, of performing a function of maintaining the semi-fixed leaf 3 closed on the fixed frame 4.

Furthermore, still in this locking position 38, the complementary locking members 14, in cooperation with said locking members 13, push the locking member (s) 13 towards the unlocking under the action of a force exerted between such a complementary locking member 14 and a locking member 13 perpendicular to the direction of movement of the rod 12.

This interaction occurs when the semi-fixed leaf 3 opens command and when closing it on the fixed frame 4, so whether it is to release the locking member (s) 13 from their complementary locking member 14 or to engage them in these.

Thus, in the context of cooperation between locking member 13 and complementary locking members 14, in the form of a roller and a keeper as illustrated in figure 5 , the ramp shape conferred, both at the inlet 39 and at the outlet 40 of the striker, combined with the circular or even cam shape of the roller, makes it possible to obtain this interaction and therefore this displacement of the rod 12 from its locking position 31 in the direction of its unlocked position 18 against the action of the spring 27.

Coming back now to the adjustment means 24 mentioned above, these advantageously consist of a sliding assembly of the housing 35, containing the spring 27, on the fixing support 15 corresponding, here, to the headrest 16. These means 24 are further supplemented by a member 41 for adjusting the position of this housing 35 on said fixing support 15.

By way of example and as shown, this adjustment member 41 may consist of an adjustment screw 42 in cooperation with the faceplate 16 and in engagement with a threaded hole 43 in the housing 35. In particular, the faceplate 16 may be provided, at its end with a return 44 crossed with a hole for the passage of the screw 42. The latter can be accessible in the rebate of the lower cross member 10 or, depending on the upper case 11 of the semi-fixed leaf 3, substantially in the angle with the front upright 8 of the latter.

Claims (8)

1. A locking device for a semi-fixed door or window (1) leaf (3) mounted pivoting on a frame (4) and cooperating, in the closed position of said door or window (1), with a movable leaf (2) covering it, including a control rod (12) provided, over its length, with at least one locking member (13) able to cooperate with a complementary locking member (14), in the form of a roller and a strike, this control rod (12) being mounted sliding on a fastening support (15), between an unlocked position (18) and at least one locking position (19), said control rod (12) further including an end (20) forming a maneuvering member to push it into the locked position (19) in which the locking member(s) (13) are each able to cooperate with a complementary locking member (14), characterized in that it includes first resilient return means (26) tending to push the control rod (12) back toward its unlocked position (18) and second resilient return means (30) pushing this control rod (12) into a blocking position (31), between the unlocked position (18) and the locked position (19).
2. The locking device according to claim 1, characterized in that the control rod (12) is mounted sliding behind a fastening support (15) in the form of a selvedge (16).
3. The locking device according to claim 1 or 2, characterized in that the end (20) of the control rod (12) forming the maneuvering member is equipped with a feeler (21) able to cooperate with a cam (23).
4. The locking device according to any one of the preceding claims, characterized in that the first (26) and second resilient return means (30) are defined by a spring (27) mounted substantially prestressed between two end walls (32, 33), with a housing (34) arranged in a casing (35) associated with the fastening support (15), the control rod (12) including driving fingers (36, 37) bearing on the ends (28, 29) of said spring (27) through appropriate openings in the end walls (32, 33) of said casing (35).
5. The locking device according to any one of the preceding claims, characterized in that through the first (26) and second (30) resilient return means, the control rod (12) is kept in the blocking position (31) in which the locking members (13) are in turn located in a blocking position (38) in relation to the complementary locking members (14), between a locked position and an unlocked position.
6. The locking device according to claim 5, characterized in that in the blocking position (38), the locking members (13) are defined to be able, in cooperation with the complementary locking members (14), to perform a function of keeping the semi-fixed leaf (3) closed on the frame (4).
7. The locking device according to claim 5 or 6, characterized in that in the blocking position (38), the complementary locking members (14), in cooperation with said locking members (13), push the latter back toward the unlocked position under the action of a force exerted between one such complementary locking member (14) and a locking member (13) perpendicular to the movement direction of the control rod (12).
8. A door or window (1) including at least two pivoting leaves including a service leaf (2) covering, in the closed position of the door or window (1), a semi-fixed leaf (3) provided, in the rebate of its upper (11) and/or lower (10) horizontal crosspiece, with a locking device (9) according to any one of the preceding claims, including a control rod (12) provided, over its length, with at least one locking member (13) and mounted sliding on a fastening support (15), said control rod (12) including an end (20) forming a maneuvering member with which a cam (23) equipping the service leaf (2) is brought to cooperate in order, during the closing of said service leaf (2), to push said control rod (12) back into at least one locked position (19) against the action of first (26) and second (30) resilient return means, in which locked position (19) the locking members (13) are brought into at least one locked position in cooperation with a complementary locking member (14) equipping the frame (4) of said door or window (1).

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