FR2911898B1 - PEN ACTUATING DEVICE AND DOOR EQUIPPED WITH SAID DEVICE. - Google Patents

Abstract

The invention relates to a device (1) for actuating a bolt (4), said bolt being movable in a translation movement in a direction D between two extreme positions, a retracted position in which it is positioned at a distance of inside a housing (3) and a protruding position in which it projects, at least partially, outside said housing (3), said device comprising an electric actuator (11) acting temporarily on said bolt to cause its transition from the retracted position to the projecting position, a return means (12) acting continuously on said bolt (4) to cause its passage from the projecting position to the retracted position, and an electromagnetic means (13) retaining said bolt (4) in projecting position when it is supplied with electric current, characterized in that said electromagnetic means (13) has a non-parallel, and preferably perpendicular, retention direction D ' in the direction D of the translation movement of said bolt (4).

Description

PEN ACTUATING DEVICE AND DOOR EQUIPPED WITH SAID DEVICE

The present invention relates to the field of electromechanical locks.

It relates more particularly to a device for actuating a bolt, said bolt being movable in a translation movement in a direction between two extreme positions, a retracted position in which it is positioned inside said device and a projecting position in which it projects, at least partially, outside said device, said device comprising an electric actuator acting temporarily on said bolt to cause its passage from the retracted position to the projecting position, a return means acting permanently on said bolt to cause its passage from the projecting position to the retracted position, and an electromagnetic means holding said bolt in the projecting position when it is supplied with electric current.

It is known from the French patent application No. FR 2,653,480 an actuating device of this type in which the electric actuator is an electric motor that allows to cause the translational movement of the bolt via a worm and the return means is a coil spring. The electromagnetic means is constituted by an annular electromagnet traversed by a support of the bolt.

The direction of the translational movement of the bolt and the retaining direction of the electromagnet are thus parallel and even more precisely coaxial, that is to say, merged.

Likewise, the direction of action of the electric motor and the return direction of the spring are coaxial with the preceding ones.

This type of device called "passive safety" allows the locking of the bolt in the projecting position (and thus the locking of the door in the closed position) when the device, and more precisely the electromagnet, is supplied with electric current. It has the important advantage of causing the release of the door by removing the bolt under the effect of the return means during the power failure of the electromagnet.

It is also known in the prior art so-called devices "active safety" in which it is the power supply cut that causes the locking of the bolt in the projecting position (and therefore the locking of the door in the closed position) .

However, such devices are not satisfactory to achieve safety issues because when the power is cut, - situation that often occurs for example in case of fire - it is no longer possible to evacuate through the door blocked, which can be very dangerous for the survival of the people concerned.

The "passive safety" devices, to which belongs the present invention, can be used in the traditional way as an electric lock whose opening can be controlled remotely, and can also and above all be mounted as a safety device on doors emergency exits or service separating doors in buildings to allow free movement of persons in the absence of power, for example in case of fire.

The electric strike thus has two essential states: either it is supplied with electric current and the door is thus locked in the closed position, or it is not supplied with current and the door can be opened freely for the free passage of people.

A major disadvantage of the device shown in the French patent application No. FR 2,653,480 is constituted by the fact that in order to meet the standards of resistance to the opening of the door, the electromagnet must be chosen very powerful. In addition to the fact that such electromagnets are expensive, they also require a lot of space because the coil must be oversized to provide the necessary boost.

Furthermore, the electric motor system driving a worm is not practical because it requires "bring back" the worm to its starting position when the electromagnet begins to hold the bolt in the projecting position; it is thus necessary to provide end-of-travel contacts, but such elements do not always have the reliability required for a lock. Indeed, the different standards in the countries provide that an electric lock can be operated at least 200 000 to 500 000 times without failure.

In addition, there is a problem of reliability of the lock if the power failure occurs while the bolt has not yet been fully retracted: it may be blocked in a partially protruding position that may prevent the opening Door.

The object of the invention is to overcome the drawbacks of the prior art by providing a device for actuating a bolt sufficiently strong mechanically, while being sufficiently reliable and compact enough to be integrated into all opening or frame of door and is also inexpensive.

The present invention thus relates in its broadest sense to a device for actuating a bolt, said bolt being movable in a translational movement in a direction D between two extreme positions, a retracted position in which it is positioned at the interior of a housing and a projecting position in which it projects, at least partially, outside said housing, said device comprising an electric actuator acting temporarily on said bolt to cause its passage from the retracted position to the position protruding, a return means acting permanently on said bolt to cause its passage from the projecting position to the retracted position, and an electromagnetic means retaining said bolt in the projecting position when it is supplied with electric current, characterized in that said electromagnetic means has a non-parallel retention direction D ', and preferably perpendicular to the direction D of the translational movement of said bolt.

Thus, by shifting the retention direction D 'of the electromagnetic means with respect to the direction D of the translation movement of said bolt, a moment of force is created, making it possible to reduce the retaining force required for effective retention of the bolt by the electromagnetic means .

This effect of decreasing the retaining force of the electromagnetic means required is felt as soon as the retaining direction D 'of the electromagnetic means is shifted by an angle of at least 50 relative to the direction D of the translation movement of said bolt and more this angle is large, the smaller the retaining force of the electromagnetic means is small to the same effect of final hold on the bolt.

Consequently, the moment of force is maximum, and the minimum necessary retaining force, when the retaining direction D 'is perpendicular to the direction D of the translation movement of said bolt.

The reduction of the retaining force required in the case of the invention then allows, by force of equal restraint on the bolt, to use a less powerful electromagnet and therefore less bulky.

In a particular variant, said electric actuator has a direction of action D "which is not parallel, and preferably perpendicular, to the first direction D of the translational movement of said bolt.

In a very particular variant, the retaining direction D 'of the electromagnetic means and the direction of action D "of the electric actuator are parallel.

In this variant, said electric actuator may be positioned diametrically opposite said electromagnetic means relative to the direction D of the translational movement of said bolt. The directions D 'and D "are then identical in space.

However, in the variant where the direction of action D "of said electric actuator and the retaining direction D 'of said electromagnetic means are all the parallels, these directions D" and D' may not be identical in space; in this case, they are then shifted along the direction D of the translational movement of said bolt. The electric actuator is preferably an electric jack having a rod which is movable in the direction D "and in the direction of the bolt under the effect of electrical pulses. It is thus not necessary to provide a complicated power supply to achieve the transition from the retracted position to the protruding position.

Said actuating device preferably comprises, in addition, a movable assembly comprising a pusher and at least two links mounted on transverse pins, said assembly being movable between a retained position in which it is retained by said electromagnetic means and a recalled position. wherein it is recalled by said biasing means.

This pusher is preferably interposed between the electric actuator and the electromagnetic means.

This pusher further comprises, preferably, at one end a magnetic counterplate for cooperation with said electromagnetic means and at another end a base for cooperation with said electric actuator. The magnetic plate counter and the base are preferably parallel and positioned diametrically opposite to the direction D when the directions D 'and D "are also parallel and positioned diametrically opposite to the direction D. The moving assembly comprises in addition, preferably a guide rod mounted on pins.

Said actuating device further comprises a striker having a recess accommodating said bolt.

This recess preferably comprises at least one inclined wall having an angle α between 30 ° to 55 ° with respect to the direction D of the translation movement of said bolt. Such orientation of the wall allows the "force" opening of the door when, although the electromagnetic means is no longer supplied with electric current, a force is applied against the closed door (for example 1000 N) and s thus opposing the opening of the door (case of "panic" on the door) or in case of failure of the device (very unlikely but still possible case where although the electromagnetic means is no longer supplied the bolt does not not move to the retracted position); under the effect of a force evoked in the standards applied against the door in its opening direction, the bolt will thus forcefully retract by sliding along the inclined wall of the striker, until leaving the recess and thus cause the release of the door. The recess of the striker comprises two walls each having an angle α between 30 ° to 55 ° relative to the direction D of the translational movement of said bolt when it is desired that the door can be opened indifferently in both directions. 'opening.

Said actuating device furthermore preferably comprises a strike presence sensor, to allow locking by the electromagnetic means only when the strike is actually positioned correctly to receive the bolt.

The present invention also relates to a door having a frame and at least one opening, said door being equipped with at least one actuating device according to the invention at an upper horizontal edge and / or a song horizontal lower and / or a vertical edge of the opening and the frame.

In the case where the door is provided with several actuating devices according to the invention, their action is of course coordinated by means of adequate electrical control means.

The present invention can thus be applied to two-opening doors cooperating with a single frame. In the case where the door is designed such that one of the opening can be opened only after the other, it suffices to provide the first opening opening of an actuating device; on the other hand, if the two doors can open independently of each other, it is preferable to provide the door with at least two actuating devices, each cooperating with an opening.

In a preferred use of the invention, the strike (where the strikes of each actuating device) of the door is (or are) positioned (s) in the edge of the opening (or openings).

This means that the housing (or casings) of each actuating device is (or are) positioned in the edge of the frame.

It is thus possible to provide that an opening (or each opening of the door) is provided with one (or more) keeper (s) according to the invention.

In a very particular variant, the opening (or each opening of the door) is provided with two strikes, a striker being positioned on the upper horizontal edge of the opening and the other striker being positioned on the lower horizontal edge of the door. opening, the frame then being of course provided with two housings, a housing being positioned on the upper horizontal edge of the frame vis-à-vis the strike located there and the other housing being positioned on the lower horizontal edge of the frame vis-à-vis the strike located there.

Advantageously, the device according to the invention makes it possible to carry out an access control by the door. Indeed, it allows to lock or not access to a specific room or to block a door that can serve as an emergency exit, this blocking occurs outside any emergency situation.

Advantageously also, in emergency situation, the device according to the invention automatically releases the door as soon as the power supply of the electromagnetic means holding the bolt is cut off, under the effect of the return means.

Advantageously also, the device can be mounted in the frame of the door with a direction D of translation of the bolt vertical and / or horizontal. The device can be advantageously completely embedded in the frame and nothing is then visible from the outside when the door is closed.

The device can be used for a double action door as for a single action door and can be powered in either 24V or 48V.

Due to the need to provide a power supply and control cables, it is preferable to position the device in the door frame; however, because of its narrowness, the device can also be integrated in an opening, but then it is more difficult to conceal the power supply and control cables and they can then be subject to acts of vandalism.

The present invention will be better understood on reading the following detailed description of non-limiting exemplary embodiments and the accompanying figures: FIG. 1 illustrates a partial perspective view of a door with a single opening and a double direction of opening, the door being equipped with an actuating device according to the invention; FIG. 2 illustrates a perspective view of an actuating device according to the invention; FIG. 3 illustrates a view from above of the actuating device of FIG. 2; FIG. 4 illustrates a cross-sectional view along A-A of the actuating device of FIG. 3, integrated in a door, the bolt of the device being in the projecting position; FIG. 5 illustrates a cross-sectional view similar to that of FIG. 4, the bolt of the device being however in the retracted position; FIG. 6 illustrates a sectional view along B-B of the actuating device of FIG. 4, without the door; • Figure 7 illustrates a sectional view along C-C of the actuator of Figure 4, without the door.

It is specified that in these figures the proportions between the various elements represented are not rigorously respected and the cutting elements in the background are not always represented, in order to facilitate reading.

FIG. 1 illustrates a door (30) implementing an electromagnetic actuation device (1) according to the invention, illustrated in more detail in FIG. 2.

This door (30) comprises an opening (32) and a frame (33), for example wood, aluminum, PVC or steel. The opening of course has two main faces and a peripheral edge, this singing co-operating in the lower part, upper and lateral with the frame for sealing the door because it is here a security door, in particular a fire door, although Figure 1 does not illustrate one of the vertical cooperation and the lower cooperation between the opening and the door frame.

The door can be opened indifferently in one direction or the other.

The actuating device consists on the one hand of a lock (2) having a housing (3) and a bolt (4) movable in a translational movement in a first direction D between two extreme positions, a retracted position in which it is positioned inside said housing (3) and a protruding position in which it projects, at least partially, outside said housing (3) and secondly with a striker (20) having a recess (21) disposed vis-à-vis the housing (3) and capable of receiving said bolt (4) when in the projecting position.

In the configuration illustrated in FIG. 1, the casing (3) is integrated into the frame of the frame (33), in its upper part, so that the direction D is oriented in a vertical direction and the bolt (4 ) can protrude beyond the upper horizontal edge (37) of the frame (33), downwards. The striker (20), it is integrated into the opening (32), in its upper part, so that it is not apparent on the main faces of the opening, but is only apparent at the upper horizontal edge (38) of the opening, without interfering with the cooperation between the opening and the frame at this location.

The housing (3) also houses actuating means and in particular electromechanical means for the electromechanical locking of the opening vis-à-vis the frame in the closed position, this blocking being operated through the power supply means electromechanical.

The device (1) thus presents electric cables (34) for the electromechanical power supply and for the passage of controls that are hidden in the frame and are thus not accessible to malicious acts.

The door (30) further comprises two hinges (35, 36). The hinge (35) is here a spring hinge which causes the opening (32) to return to a closed door position as soon as it is no longer subjected to a manual opening force, and the hinge (36) is here a return damper hinge, for example a damping hinge with hydraulic braking, to control the speed of return of the leaf under the effect of the hinge spring. It is these two hinges that also transmit most of the weight of the opening (32) to the frame (33). Other configurations are of course possible:

The door may not be a security door and the cooperation between the opening and the frame may not be on the whole periphery of the opening but on only one part; the door can be in a single opening direction; the return of the door in the closed position can be operated by a hydraulically damped door return pivot or by a hydraulic damping door closer; the device (1) can be positioned at the vertical edges of the opening and the frame, for example near a handle; the lock can be integrated in a song of the opening and the striker can then be integrated into a song of the frame; ...

However, in the latter case, the electric cables (34) are then accessible to malicious acts but any cut-off causing them to cut off the power supply of the electromechanical means will cause the interruption of the maintenance of the door in the closed position by the device (1) and will not oppose the opening movement of the opening in its opening direction, so as not to prevent evacuation.

Figures 2 and 3 illustrate an embodiment of an actuating device (1) according to the invention.

In this figure, the bolt (4) is in projecting position, to illustrate the cooperation between the latter and the striker (20).

The bolt (4) is cylindrical and protrudes from the casing (3) in its direction of translation D by a hole (5) circular formed in a facade (6) of the flat housing (3), substantially perpendicular to this facade. This hole is materialized by a circular ring.

The front (6) is provided with holes (7, 7 ') for fixing the housing (3) to the frame so that the front (6) is flush with the edge (37) of the frame, as visible in Figure 4.

The casing (3) is also constituted by plates assembled with the front and protecting the actuating means. These plates, as well as the facade, are preferably metal and can be obtained by molding the housing or can be assembled by welding.

The striker (20) has the general shape of a straight parallelepiped and the recess (21) opens at least on one of the faces of this parallelepiped: the face (22) intended to be positioned facing the facade ( 6) of the housing (3), flush with the edge (38) of the opening, as shown in Figure 4.

In the version illustrated in Figure 2, the recess (21) also opens on another side of the parallelepiped, the face (23), opposite to the face (22).

The striker (20) is provided with holes (27, 27 ') for attachment to the opening so that the face (22) is flush with the edge (38) of the opening.

The striker (20) is preferably made of metal, but it can also be made of plastic. It can be manufactured by removal of material or by molding.

Figures 4 to 7 detail the contents of the actuating means housed by the casing (3) of the lock. The casing (3) thus comprises a movable assembly (8) composed of a longitudinal pusher (9) having at one end a magnetic plate (10) and at one end a base (10 '), as well as rods ( 14, 14 ', 16, 18) mounted on transverse pins (15, 15', 15 "; 17, 17 ').

This assembly is actuated by an electric actuator (11) positioned inside the casing (3) and here constituted of a cylinder controlled electronically by a power supply, for example 24 V or 48 V (not shown).

This electric actuator (11) is provided with a rod (11 ') movable in an action direction D "not parallel to the first direction D of the translational movement of said bolt (4); the direction of action D "is here horizontal and thus perpendicular to the vertical direction D of the translation movement of the bolt (4). The moving assembly (8) can also be retained by electromagnetic means (13) when it is supplied with electric current. This means consists here of an electromagnetic pad (13) positioned inside the casing (3) and cooperating with the magnetic plate counter (10).

As shown in Figure 4, the retaining direction D 'of the electromagnetic means (13) is not parallel to the direction D of the translation movement of the bolt (4); the holding direction D 'is here horizontal and thus perpendicular to the vertical direction D.

The retention direction D 'and the direction of action D "are thus here parallel, without however being confused in space: they are shifted along the direction D by a distance of about 5 mm. The moving assembly (8) is also permanently under the influence of a return means (12) constituted by a coil spring tending to return the bolt (4) in the retracted position but which can also be a spring with a blade or any other possible return element. The spring is here stretched in a direction having an angle of about 50 ° with the direction D when the bolt (4) is in the projecting position and it is at rest, substantially horizontal, when the bolt (4) is in the retracted position .

The bolt (4) is connected to the pusher (9) by means of the rods (14, 14 '; 18) and pins (15, 15', 15 "). More precisely and as otherwise visible in FIG. 6, the double link (14, 14 ') is rotatable at its upper end relative to the casing (3) around the pin (15) and the secondary link (18) is mobile in rotation at its upper end relative to the double rod (14, 14 ') around the pin (15') and at its lower end relative to the bolt (4) around the pin (15 ").

As can be seen in FIG. 6, when the bolt (4) is in the projecting position, the rods (14, 14 ', 18) are approximately aligned vertically, but when the bolt (4) is in the retracted position, as visible on Figure 5, only the pins (15, 15 ') remain aligned vertically; the pin (15 ') is pulled towards the actuator (11) under the effect of the return means attached to the base of the pusher; in doing so, the pusher (9) is also pulled towards the actuator (11) and slightly upwards under the effect of the return means to which it is linked.

It should be noted that the base of the pusher (9) is not connected to the actuator (11).

The pusher (9) is also connected at its other end to the plate against (10) by means of a fixing screw.

The comparison of FIGS. 4 and 5 shows that the pusher (9) is permanently parallel to the directions D 'and D ", that is to say is permanently perpendicular to the direction D, here vertical.

The comparison of FIGS. 4 and 5 furthermore makes it possible to observe that the magnetic backplate (10) and the base (10 ') are permanently perpendicular to the directions D' and D ", that is to say are permanently parallel to the direction D, here vertical. The arrangement of these directions between them is invariable throughout the operation of the device, that is to say, whatever the position of the bolt (4).

This particular positioning promotes an adequate mechanical cooperation between the various elements, ensuring efficient transfer of forces without causing premature wear in the mechanical contacts.

The pusher (9) is further supported by a guide rod (16) and pins (17, 17 '). More specifically, and as otherwise visible in FIG. 7, the rod (16) is rotatable at its upper end relative to the casing (3) around the pin (17) and the pusher (9) is rotatable in rotation. lower end of the link (16) around the pin (17 ').

The link (16) and the pins (17, 17 ') are optional insofar as they serve only for the reliable guidance of the pusher (9) and prevent play formation in the moving assembly (8). ).

As can be seen in FIG. 3, the width of the striker (20) may be substantially identical to the width of the facade (6): this is an important advantage of the invention; because of the moment of force created by the particular positioning of the electromagnetic lock and the use of the moving assembly, it is possible to use a sufficiently reliable electromagnetic lock while being compact.

As can be seen in FIG. 4, when the bolt (4) is in the projecting position, it is positioned essentially outside said casing (3) but its proximal end (40) remains inside the casing (3). ), that is to say recessed from the front (6) (here with a minimum shrinkage of 5 mm), ensuring reliable guiding and mechanical maintenance.

Thus, within the meaning of the present invention, when it is explained that in projecting position the bolt (4) protrudes outside the housing (3), it should be understood that in this position it can be completely at the outside the housing (3) so that its proximal end (40) is beyond the front (6) if the means that carry it allow it, or that the proximal end (40) can be flush with the facade (6) or that the proximal end (40) may be slightly set back from the front (6), while allowing, in this projecting position, the bolt (4) to come into contact and cooperate with the latch (20).

As explained above, the latter solution, where the proximal end (40) is slightly set back from the front (6), is preferable for reasons of reliability of guiding and mechanical maintenance.

As can be seen in FIG. 5, when the bolt (4) is in the retracted position, it is positioned inside said casing (3) but its distal end (41) is slightly protruding (here at most 3 mm) by compared to the facade (6).

Thus, in the sense of the present invention, when it is explained that in the retracted position the bolt (4) is positioned inside the housing (3), it should be understood that in this position it can be completely at the inside the housing (3) so that its distal end (41) is recessed with respect to the front (6), or that the distal end (41) can be flush with the front (6) or that the the distal end (41) can protrude slightly beyond the front (6) without however being able to come into contact with or cooperate with the striker (20).

As also visible in FIG. 6, the recess (21) comprises two walls (25, 25 ') each having an angle α between 30 ° to 55 °, in this case of the order of 40 °, with respect to the direction D of the translational movement of said bolt because the door can open indifferently in both directions of opening.

These walls allow a "force" opening of the door under the effect of a significant effort, meeting the standards: under the effect of this force, if the electromagnetic means (13) is no longer supplied with current but that the bolt (4) is not in the retracted position, the bolt will come into contact with one of the walls and slide along this wall until it comes out of the recess (21), thereby releasing the opening.

To actuate the device, the presence of the opening is detected by means of a sensor (19) and the "presence of the opening" information is sent back to an electronic cell (not shown) by detection. by the sensor (19) the presence of a magnet (24) located in the keeper (20) and flush with the face (21).

The locking of the lock is done only by supplying the lock with electric current. When the lock is powered, the electronic cell will check the presence of the opening through the sensor (19) and the magnet (24). If the door is present, the rod (11 ') of the electric cylinder automatically leaves under the effect of an electric pulse, to operate the pusher (9), to release the bolt (4), to stretch the means of reminder (12) and gently bring the magnetic backing plate (10) into contact with the electromagnetic lock (13). This being fed, the magnetic counterplate (10) thus comes to be firmly positioned against the electromagnetic lock (13) under the effect of the electromagnetic field, thus making it possible to lock the position of the pusher (9) and thus the bolt (4). ) in the housing (21) of the keeper (20) provided for this purpose.

The lock is locked.

The pusher is in the locked position, it actuates the positional contact (31) to return the information "lock locked" to the fire panel.

The unlocking of the lock is obtained only by cutting the power supply, without sending any information that it self. Indeed, when there is a break in the current, the power supply of the electromagnet (13) is cut off and the electromagnetic field ceases to retain the counter plate (10) magnetic.

The return means (12) "breaks" then the toggle formed by the rods (14, 14 '; 18), returns the pusher (9) to the initial position, guided by the rod (16), and the rod (11). ') of the electric cylinder to its initial position. By this action, the bolt (4) also returns to the initial position and the door is unlocked and free movement.

The present invention is described in the foregoing by way of example. It is understood that the skilled person is able to achieve different variants of the invention without departing from the scope of the patent as defined by the claims.

Claims (12)

1. Device (1) for actuating a bolt (4), said bolt being movable in a translation movement in a direction D between two extreme positions, a retracted position in which it is positioned inside a housing (3) and a protruding position in which it projects, at least partially, outside said housing (3), said device comprising an electric actuator (11) acting temporarily on said bolt to cause its passage from the retracted position at the protruding position, a return means (12) acting permanently on said bolt (4) to cause its passage from the projecting position to the retracted position, and an electromagnetic means (13) retaining said bolt (4) in protruding position when it is supplied with electric current, characterized in that said electromagnetic means (13) has a non-parallel, and preferably perpendicular, retention direction D 'at the direction D of the translational movement of said bolt (4). 2. Device (1) according to claim 1, characterized in that said electric actuator (11) has a direction of action D "non-parallel, and preferably perpendicular to the first direction D of the translational movement of said bolt (4). ). 3. Device (1) according to claim 2, characterized in that the retaining direction D 'of the electromagnetic means (13) and the direction of action D "of the electric actuator (11) are parallel. 4. Device (1) according to the preceding claim, characterized in that said electric actuator (11) is positioned diametrically opposite said electromagnetic means (13) relative to the direction D of the translational movement of said bolt (4). 5. Device (1) according to claim 3, characterized in that the direction of action D "of said electric actuator (11) and the retention direction D 'of said electromagnetic means (13) are shifted along the direction D of the translational movement of said bolt (4). 6. Device (1) according to any one of the preceding claims, characterized in that said electric actuator (11) is an electric cylinder having a rod (1Γ) which is movable in the direction D ". 7. Device (1) according to any one of the preceding claims, characterized in that it further comprises a movable assembly (8) comprising a 6. Device (1) according to any one of the preceding claims, characterized in that it further comprises a movable assembly (8) comprising a pusher (9) and at least two rods (14, 14 '; 18) mounted on transverse pins (15, 15 ', 15 "), said assembly being movable between a retained position in which it is retained by said electromagnetic means (13) and a biased position in which it is biased by said biasing means (12). ). 7. Device according to any one of the preceding claims, characterized in that said pusher (9) has at one end a magnetic plate against (10) and at another end a base (10 '). 8. Device according to any one of claims 6 or 7, characterized in that the movable assembly (8) further comprises a connecting rod (16) mounted on pins (17, 17 '). 9. Device (1) according to any one of the preceding claims, characterized in that it comprises a keeper (20) having a recess (21) accommodating said bolt (4), said recess (21) having at least one wall (25, 25 ') having an angle α between 30 ° to 55 ° with respect to the direction D of the translational movement of said bolt (4). 10. Device according to any one of the preceding claims, characterized in that it comprises a striker (20) and a sensor (19) for the presence of the striker (20). 11. Door (30) having a frame (33) and at least one opening (32), said door being equipped with at least one device (1) according to any one of the preceding claims at a higher horizontal edge and / or a lower horizontal edge and / or a vertical edge of the opening (32) and the frame (33). 12. Door (30) according to the preceding claim, characterized in that said (or said) strike (s) (20) is (or are) positioned (s) in the edge of the opening (32) (or openings ).