EP0349452A1 - Door or window fastener - Google Patents

Abstract

A lock for doors, windows or the like includes a case for housing a control mechanism having an electric motor for actuating at least one control rod acting upon one or a plurality of locking members. To permit the lease or unlocking of the door, window or the like in case of failure of the electric motor, the electric motor is mounted on a movable bracket which is adapted to vertically move in the case and is actuated by a drive which is controlled manually, and/or electrically and/or electromechanically.

Description

The invention relates to a locking fitting for a door, window or the like comprising a housing serving as a housing for a control mechanism constituted by electric motor means for actuating at least one operating rod acting on one or more locking members capable of cooperating. with strikes arranged on the sleeping frame.

This invention will find its application, more particularly, in the field of building hardware.

Several locking fittings corresponding to the above description are already known and the particularity of which resides in their multiple locking point allowing blocking at several levels of the leaf against the dormant frame of the door, window or the like.

Thus, among these known locking fittings, there are cremones whose design is limited to at least one operating rod extending above and / or below a housing in which is housed the control mechanism. The latter ensures the transmission of the movement of an operating handle, actuated by the user, on said operating rods. These are also provided with blocking members such as rollers, cooperating in the locked position with strikes arranged on the frame.

Locking levers are also known, the peculiarity of which lies in the addition, with respect to simple levers, of a key element making it possible to act on a locking bolt to block the operating rods in the locked position. By thus preventing the displacement of these operating rods by a direct action on the locking members, action corresponding to the actions of a thief, these locks and bolts offer a higher degree of security.

Cremone bolts as well as cremone bolts and locks are usually inserted into a notch made in the edge before the opening, the operating rods coming to slide in a groove fitted for this purpose and covered by a headrest.

Among these locking fittings with multiple locking points, there are also multi-point locks. These differ from the locking fittings exposed above because, on the one hand, of their applied position on the internal face of the opening. Their control mechanism, as well as the operating rods, are frequently covered, under these conditions, by a strip extending, substantially, over the entire height of the opening. On the other hand, these multi-point locks are provided with locking members constituted, for example, by a deadbolt whose movement is carried out perpendicular to the front upright of said opening, parallel to the plane of the latter.

The advantage of such locking fittings placed on the door leaf, in comparison with the above-mentioned bolts or bolts, consists of a general reinforcement of the various mechanical parts, ultimately improving the holding of the door under the effect of an impact.

Recent technical progress in the field of electronics and electro-mechanics has made it possible to motorize one or the other function of the mechanism of these locking fittings and thus ensure remote execution thereof.

This feature has made it possible to centralize the control of several locking fittings, and ultimately the opening and closing of a set of doors, windows or the like in a building.

Different modes of motorization of these locking fittings have been adopted. Thus, according to a first known embodiment, an electric motor has been associated with a locking bolt ensuring the locking of the rods of maneuver in locked position. Simultaneously, elastic return means have been integrated into the control mechanism to obtain, when the opening is closed, the automatic translation of said operating rods in the locked position.

This solution is, in fact, of the hybrid type since only the locking of the door, window or the like can be obtained automatically, the unlocking requiring manual intervention.

A locking fitting was also designed, of which only the locking members were motorized.

Although authorizing the remote control, at the same time, of locking and unlocking of the door, window or the like, such an embodiment requires the use of as many motor means as there are locking members. Therefore, these locking fittings are particularly expensive, not to mention that the failure of a single motor element prevents the opening of the door or window.

Another solution consisted in controlling the drive of the operating rods by means of a single electric motor, mechanical, electro-mechanical or electronic means ensuring, moreover, the blocking of said operating rods in the locked position.

In all the cases mentioned, the locking fittings are in the form of a complex assembly whose failure of a single electro-mechanical or electronic mechanical member prevents the locking or unlocking of the door, window or the like. However, in the event of a disaster, such as a fire, it can be imagined that, due to a malfunction of such a locking fitting, people may remain trapped in the dwelling and not be rescued. time.

A first attempt to remedy this drawback consisted in duplicating the electrical control members, by manually controlled devices. This solution has resulted in an increase in the complexity of the material without providing a real answer to the problem posed. Indeed, there persisted a risk, according to which the dysfunction of the electric motor means is accompanied by a failure of a mechanical part, due, for example, to the deformation of the door, window or the like, under the thrust of the crowd hurrying towards the exit. In this case, no effective and simple solution is proposed.

Furthermore, document WO-A-8,403,909 discloses a locking lock comprising electric motor means capable of controlling the movement of a locking bolt in a direction perpendicular to the front edge of the door, window or the like. which said lock is applied. These electric motor means are slidably mounted, in a direction similar to the aforementioned locking bolt, in a housing attached to the rear face of a headrest and intended to be embedded in the front edge of an opening. Thus, in the event of a malfunction of the electric motor means, these can be moved inside their housing by means of external manual control means. To this end, said electric motor means are equipped with a rack on which a toothed pinion is driven in rotation, as the case may be, either by means of an operating handle disposed on the internal face of the opening , or using a key element accessible on the external face of this opening.

In fact, this locking lock offers only a reduced degree of security constituting only one locking point on the door, window or the like.

The object of the present invention is to remedy the aforementioned drawbacks. The invention as characterized in the claims solves the problem of creating a locking fitting for a door, window or the like, comprising a housing serving as housing for a control mechanism constituted by electric motor means for actuating at least an operating rod acting on one or more blocking members capable of cooperating with keepers arranged on the frame, the electric motor means of this locking fitting being mounted on a mobile support capable of moving vertically in the housing and actuated by drive means with manual and / or electro-mechanical and / or electronic control.

The advantages obtained thanks to this invention consist, essentially, in that the electric motor means cooperating with the operating rods, constitute, in fact, a secondary control member, themselves dependent on a main control member without, however, the operating state of one influences that of the other. More specifically, the release of the operating rods, in the event of a malfunction of the electric motor means, is obtained by giving the entire control mechanism a vertical movement. Due to the connection of these electric motor means with said operating rods, these perform an identical stroke causing the erasure of the locking members relative to the strikes located on the frame. In short, the command to replace the operating rods is of the direct type avoiding the risk of a failure in parts of the intermediate transmission.

• - la figure 1 représente une vue schématisée et en élévation d'une ferrure de verrouillage conforme à l'invention ;
• - la figure 2 représente une vue schématisée et en élévation d'un exemple d'organe de blocage coopérant avec une tringle de manoeuvre de la ferrure de verrouillage illustrée dans la figure 1.

The invention is set out below in more detail with the aid of drawings representing only one embodiment.

• - Figure 1 shows a schematic view in elevation of a locking fitting according to the invention;
• FIG. 2 represents a diagrammatic view in elevation of an example of a locking member cooperating with an operating rod of the locking fitting illustrated in FIG. 1.

The object of the present invention is a locking fitting 1 for door, window or the like, one of the particularities of which resides in its automation allowing remote control and, in particular, from a central control console.

This locking fitting 1 can take place, either in a notch made in the front edge of an opening, or applied on the internal face of the latter. This second solution more closely resembles the figures shown in the drawings accompanying the description.

Thus, the locking fitting 1 according to the invention comprises a housing 2 serving as a housing for a control mechanism 3 capable of actuating at least one operating rod 4, 5, extending above and / or in below the latter. The design of the housing 2 will depend on the method of mounting the locking fitting 1. In the event of insertion into the front edge of the opening, its dimensions will be reduced to a minimum so as to avoid too deep or too wide notching having as a consequence of significantly weakening said opening.

The surface-mounted solution, visible in FIG. 1, makes it possible to extend the housing 2 over the entire height of the opening. It borrows, thus, the configuration of a strip simultaneously covering the control mechanism 3 and the operating rods 4, 5. As for the latter, they act on locking members 6, of variable number, distributed over the above and / or below the control mechanism 3 and cooperating, in the locked position, with strikes arranged on the frame of the door or window.

Such blocking members 6 may consist of rollers or rollers, with vertical displacement, made integral with the operating rods 4, 5 and presenting themselves salient with respect to a headrest 7 applied to the front edge, either of the opening or of the housing 2 in the form of a strip.

According to another embodiment, represented in FIG. 2, these blocking members 6 comprise a U-bolt 8 moving perpendicular to the front upright of the opening and emerging from the headrest 7 through a light 9 so to cooperate with a keeper located on the frame. In the event of unlocking, this U-bolt 8 is able to disappear in the housing 2.

By way of example, the control of this half-turn bolt 8 by means of the operating rods 4, 5 is effected by means of a bridge 10 integral with the latter and comprising, in its rear edge 11, a cutout 12. This cooperates with one end of a spindle 13 passing right through, the tail 14 of the latch bolt 8. The other end of this spindle 13 is engaged in an oblong slot 141 arranged in the one of the walls of the housing 15 serving as a housing and for guiding said latch bolt 8.

This housing 15 is made integral with the headrest 7 by means of fixing members 16 such as screws, rivets or the like. In the case of a surface-mounted installation, the holding of the housing 15 on the opening can be improved by the addition of complementary fixing members 17 cooperating with the internal wall 18 of said opening or with a reinforcing plate affixed to the latter.

Preferably, the tail 14 of the half-turn bolt 8 cooperates with elastic return means 19 making it possible to maintain the latter in the projecting position. This provision also authorizes the closing of the opening of the door, window or the like while the operating rods 4, 5 have been activated beforehand and are in the locked position.

As regards the control mechanism 3 of the locking fitting 1, it is preferably constituted by electric motor means 20 actuating operating rods 4, 5 to bring the latter into their corresponding blocking or unblocking position. , respectively, to the locking or unlocking of the door or window. The operation of these electric motor means 20 is, moreover, ensured by means of electrical and / or electronic control members, the management of which can be carried out at a central control desk.

More specifically, at the locking fitting 1, these electric motor means 20 comprise a motor 21 acting on drive means 22 cooperating with the operating rods 4, 5, by means of a bridge 23 connected to these past.

According to a characteristic of the invention, these motor means 20 are mounted on a movable support 24 capable of moving vertically in the housing 2. The advantage of such a characteristic consists in that, in the event of a failure in the operation of these electric motor means 20, it is possible to actuate the operating rods 4, 5 by acting directly on the mobile support 24.

However, in order to be able to reflect the movement of the mobile support 24 on the operating rods 4, 5 it is essential that the link 25 connecting the bridge 23 to the electric motor means 20 be, at this instant, rigid in nature. In contrast, during the movement of said operating rods 4, 5 using these electric motor means 20, this connection 25 between the drive means 22 and the bridge 23 is necessarily mobile.

The solution to the problem is to transform the reactive force of these operating rods 4, 5 on said drive means 22 into a force with a horizontal component, perpendicular to their movement. In fact, this solution comes down to the use of an endless screw 26 as a drive means 22 for the bridge 23. The latter is, moreover, provided, on its internal edge 27 with a rack 28 the teeth of which cooperate with said worm 26.

According to a preferred embodiment, the mobile support 24 is constituted by a metal, plastic or other dish 29. The latter has two oblong slots 30, 31 arranged vertically on either side of its vertical median plane and in which are engaged guide and retaining studs 32, 33 integral with the internal wall 18 of the opening or of the shielding applied to the latter. It will also be noted that one of these guide and retaining studs 32 is engaged, in addition, in an oblong slot 35 machined in the easel 23, coming to be superimposed on the plate 29. This stud 32 thus guarantees, positioning and guiding said easel 23 and, finally, operating rods 4, 5 in the housing 2.

On this plate 29 are fixed the electric motor means 20 using fixing elements 36 such as screws, rivets or the like. These are a number depending essentially on the size and the weight of the component parts of the locking fitting 1.

In the event of a failure, either in the control system of the electric motor means 20, or directly at the level of the latter, the movement of the mobile support 24 is ensured by means of drive means 37, the control of which can be of the type manual, and / or electronic and / or electro-mechanical.

Since this safety device which constitutes this movable support 24 is only to be actuated in the event of a malfunction when the locking fitting 1 opens, the drive means 37 are formed by an elastic element 3 capable of pushing said support 24 and the operating rods 4, 5, from their locking position to their unlocking position. To this end, the elastic element 38 is kept prestressed in the housing 2 by means of suitable means 39. Furthermore, control members 40, of the manual type, and / or electronic and / or electro-mechanical, ensure relaxation at the appropriate time.

More specifically, the elastic element 38 is formed by one or more helical springs 41 cooperating, at their upper end 42, with the movable support 24 and coming to bear, at their lower end 43, on a control box 44 containing the members 40. As regards the means 39 holding the elastic element 38 prestressed, these are in the form of a control lever 45 arranged coaxially with the helical springs 41 and made integral in its upper part 46, of a connection block 47 fixed on the flat 29 below the electric motor means 20. On this connection block 47 bear the upper ends 42 of said helical springs 41.

As for the lower part 48 of the control lever 45, it is introduced into a guide chamber 49 arranged in the control box 44. According to a preferred embodiment, the control members 40, housed in the latter, have the function to maintain this lower part 48 and, finally, the control lever 45, in the lowered position, introduced into the guide chamber 49.

To this end, and according to a characteristic of the invention, these control members 40 include means 50 for immobilizing the control lever 45 in said control box 44, these means 50 being actuated either manually, either electronically or by an electromagnetic device.

The solution represented in FIG. 1 corresponds, more precisely, to the combination of a manual and electro-mechanical operating mode.

Thus, these means 50 are constituted by a blocking arm 51 comprising a hemispherical end 52 cooperating, through an opening 53, arranged in the guide chamber 49, with a ciconferential groove 54 of semi-spherical section machined in the part lower 48 of the control lever 45. The other end 55 of this locking arm 51 is slidably engaged in an orifice 56 formed in a pin 57 arranged, horizontally, in a housing 58 present in the control box 44. That -this houses, in addition, an electromagnet 59 whose core 60 cooperates, at its upper end 61, with the spindle 57 in order to push it vertically in the housing 58. In such a situation, this arm of blocking 51 performs a rotation around its hemispherical end 52. The vertical guidance of the spindle 57 in the housing 58 is ensured by means of oblong slots 62 machined in one or the other wall internal or external 63 of the control unit 44. In these oblong slots 62 are engaged cylindrical pins 64 integral with the ends of said pin 57.

The unlocking of the control lever 45 after actuation of the electromagnet 59 is obtained due to a flat 65 machined on the hemispherical end 52 of the locking arm 51, this flat 65 being caused to appear, in these conditions, to the right of the semi-conical groove 54.

According to a particularly advantageous variant, the hemispherical end 52 of this locking arm 51 can be substituted with an axis on which the aforementioned flat is found. The ends of this axis are, under these conditions, pivotally mounted in the internal and external walls 63 of the control unit 44.

The operation of the locking fitting 1 is as follows:
- In normal use, the direction of rotation of the worm 26 determines the movement of the operating rods 4, 5 bringing them in the locking or unlocking position.
- in the event of a failure, the operating rods 4, 5, being in the lowered position, therefore of blocking, the control of the electromagnet 59 releases the control lever 45, the elastic element 38 repelling, then the support mobile 24 upwards. This results in the unlocking of the operating rods 4, 5 and the unlocking of the door or window;
- The rearming of the system is obtained by actuating the electric motor means 20, these pushing back, due to their cooperation with the bridge 23, the movable support 24 in its initial position and compressing the helical springs 41;
at the end of the race, the locking arm 51 and, in particular, its hemispherical end 52 engages in the groove 54 present in the lower part 48 of the control lever 45 immobilizing the latter in the guide chamber 49.

Note, however, that due to the flat 65 cooperating with the periphery 66 of the control lever 45, the locking arm 51 can not return to its initial position, as long as the groove 54 in said control lever 45, is present not in line with the opening 53. For this reason, the locking arm 51 is provided with elastic return means 67 pushing back, when possible, its end 55 and, consequently, the spindle 57 in the low position, resting on the upper end 61 of the core 60 of the electromagnet 59.

As for the manual control of the means 50 immobilizing the control lever 45 in the control box 44, these are advantageously constituted by the pin 57. Under these conditions, one of the ends of this pin 57 passes through the light guide 62 present in the internal wall of said control unit 44 and emerges at the internal face of the unit 2 of the locking fitting 1.

Therefore, by pushing vertically and upwards this graspable end of the spindle 57, it is possible to manually release the control lever 44 and, ultimately, to cause the unlocking of the door or window.

Of course, other types of drive means 37 for the mobile support 24 can be envisaged. However, the embodiment described above and shown in Figure 1 has the advantage of being uncomplicated and, therefore, perfectly reliable.

It is the same for the means 39 for holding the elastic element 38 prestressed in the housing 2. Thus, as locking means 50 of the control lever 45, in the guide chamber 49, the electromagnet 59 suffices . In this case, the latter is given a rotation of ninety degrees in the control unit 44 so as to obtain direct cooperation of its core 60 with the lower part 48 of said control lever 45, the withdrawal of this core 60 releasing this one.

Claims (13)

1. Locking fitting for door, window or the like, comprising a housing (2) serving as a housing for a control mechanism (3) constituted by electric motor means (20) for actuating at least one operating rod (4, 5 ) acting on one or more locking members (6) capable of cooperating with strikes arranged on the frame, locking fitting characterized in that the electric motor means are mounted on a mobile support (24) capable of moving vertically in the housing (2) and actuated by drive means (37) with manual and / or electronic and / or electromechanical control. 2. Lock fitting according to claim 1, characterized in that the electric motor means (20) comprise a motor (21) acting on drive means (22) cooperating with the operating rods (4, 5) by through an easel (23) connected to the latter, said drive means (22) being constituted by an endless screw (26) acting on a rack (28) machined on the easel (23) to transform the force reactivates the operating rods (4, 5) in a force with a horizontal component, perpendicular to their displacement. 3. Locking fitting according to claim 1, characterized in that the movable support (24) is formed by a flat (29) metal, plastic or other, having two oblong slots (30, 31) arranged vertically, and share and on the other, of its vertical median plane and in which are engaged guide and retaining studs (32, 33) integral with the internal wall (34) of the housing (2) or the internal face of the opening the door, window or the like, one (32) of these guide and retaining studs cooperating, in addition, with an oblong slot (35) machined in the easel (23). 4. Locking fitting according to claim 1, characterized in that the drive means (37) actuating the mobile support (24) are formed by an elastic element (38) capable of pushing said mobile support (24) and the operating rods (4, 5) from their locking position to their unlocking position, this elastic element (38) being kept prestressed in the housing (2) by means (39) suitable and being released at the using manual and / or electronic and / or electro-mechanical control elements (40). 5. Locking fitting according to claim 4, characterized in that the elastic element (38) is composed of one or more helical springs (41) arranged coaxially and, cooperating, at their upper end (42) with the support mobile (24) their lower end (43) bearing on a control box (44) containing the control members (40). 6. Locking fitting according to claims 4 and 5, characterized in that the means (39) holding the elastic element (38) prestressed in the housing (2) consist of a control lever (45) disposed coaxially with helical springs (41) and made integral, in its upper part (46), with a connecting block (47) fixed on the flat (29) below the electric motor means (20), the lower part (48) of said control lever (45) being introduced into a guide chamber (49) arranged in the control box (44). 7. Locking fitting according to claims 4 and 6, characterized in that the control members (40) comprise means (50) for holding and immobilizing the lower part (48) of the control lever (45) in the chamber guide (49) of said control unit (44) these means (50) being actuated manually and / or electronically and / or by an electromagnetic device. 8. Lock fitting according to claim 7, characterized in that the means (50) are formed by a locking arm (51) comprising a hemispherical end (52) cooperating, through an opening (53) arranged in the guide chamber (49) with a circumferential groove (54) of semi-spherical section machined in the lower part (48) of the control lever (45), the other end (55) of this locking arm (51) being introduced into an orifice (56) produced in a spindle (57) arranged horizontally, in a housing (58) arranged in the control unit (44). 9. Locking fitting according to claims 7 and 8, characterized in that the control members (40) housed in the control unit (44) comprise an electromagnet (59) whose core (60) cooperates, its upper end (61) with the pin (57) to push it vertically into the housing (58) and give the locking arm (51) an angle of rotation around its hemispherical end (52). 10. Locking fitting according to claim 8, characterized in that the spindle (57) comprises at its ends, cylindrical pins (64) introduced into oblong slots (62) machined in the internal and external wall of the control unit (44) to ensure vertical guidance of said pin (57) in the housing (58). 11. Locking fitting according to claim 8, characterized in that the hemispherical end (52) of the locking arm (51) has a flat (65) coming to be located in line with the circumferential groove (54) of the lever. control (45) in the event of control of relaxation of the elastic element (38), elastic return means 67 cooperating with this same end (52) to push said locking arm (51) and the spindle (57) into their lowered initial position, after re-stressing said elastic element (38). 12. Locking fitting according to claim 8, characterized in that the hemispherical end (52) of the locking arm (51) is replaced by an axis comprising a flat (65) capable of cooperating with the opening (53) fitted in the guide chamber (49) to release the control lever (45), this axis being pivotally mounted at its ends in the internal and external walls (63) of the control box (44). 13. Locking fitting according to claim 10, characterized in that the spindle (57) constitutes the manual control of the means (50) immobilizing the control lever (45) in the guide chamber (49), one of the ends of this pin (57) passing through the oblong lumen (62), present in the internal wall of the control box (44), and emerging at the internal face of the box (2), this end allowing manual rotation of the locking arm (51) to ensure the relaxation of the elastic element (38).

Images