EP0891463B1 - Electrical control device for locking and unlocking a lock with panic function and panic lock with said device - Google Patents

Abstract

The reversible electric motor (1) drives a coupling finger (2) pivoted on a plate (3) extending along a board (E) against which the lock is fitted. The finger moves into and out of a notch (14) in the rim of a disc (13) fixed to the shaft (12) of the controlled handle (11). The motor carries a ring or disc (4) with axially projecting eccentric studs (5) between which the end of an elastic rod (7) is driven to pivot the finger. The other handle (8) on a collinear shaft (9) can be rotated at all times.

Description

The present invention relates to a control device electric lock / unlock lock with panic function and panic locks equipped with such a device.

Electrically operated locks are widely developed in various fields to increase security through the use of electronic control means an electric motor. The electronic means themselves can be controlled by a wide variety of devices such as as magnetic, punched or others, keyboards, badge readers, etc.

Electric control is often done by a motor reversible electric control element mechanical blocking / unblocking of a lock member such an operating device (button or door handle) or a locking member such as the bolt.

Thus, we know from GB-A-2 107 778, a lock electrically lockable / unlockable. A element such as a coupling rod cooperates with a slot in a hub having means of the lock bolt. This element is controlled by a solenoid between an engagement position in the slot (locked position) and a position of disengage from the slot (unlocked position). These two positions are obtained by the rotational drive an eccentric rod mounted on a disc which can be rotated, the rod cooperating with a slot linear of a part carrying the coupling element, the drive in rotation of the disc by the solenoid causing the drive of said coupling element between its two positions.

In order to ensure greater safety in use of this type of lock, it is however useful to plan an anti-panic function allowing in particular to activate the lock, for example from inside a room, without need to activate the electronic means of electric motor control locking / unlocking the lock, in particular when it is locked.

To this end, a maneuver is made constantly control unit of a lock even though the second control unit can be locked. Preferably, the axis of said first organ connecting it to the mechanism of lock is then distinct from the axis of the second member of controls and can thus be operated independently of said second control unit, whether it is locked or unlocked. A lock mechanism of this type can have either a single follower or a double follower.

We know from EP-A-0 172 796, a lock electrically lockable / unlockable but which can be operated manually, at least on one side of the door, without using control means electric. Maneuverable coupling device electrically has a plate fixed in rotation on one of the axes of actuation of the lock and which comprises a notch at its periphery in which a finger coupling engages or disengages under the effect of electrical actuation means. However, the device electric actuation for finger operation mating is relatively complex and bulky in as far as it includes the electric motor on which an eccentric and a cam are mounted, the eccentric being connected to the coupling finger using two arms link which, when the eccentric is rotated by the motor, rotate the finger coupling between a coupling position (unlocking) and a non-coupling position (locking).

A control device should be proposed electric locking / unlocking of the second component of order which is of a structure and an implementation simple while offering a reduced footprint and which allows, in the locked position, to prevent transmission of the actuation of said second member of control at the lock mechanism and in position unlocked, to release this transmission and whatever the type of lock mechanism used.

To this end, the invention relates to a device for electric lock / unlock control panic lock with two control elements one of which is constantly manoeuvrable, of the type comprising a reversible electric motor controlling a locking / unlocking element of the other control of the lock comprising a coupling finger cooperating with a peripheral notch provided on a disc integral with the other control member of a lock to lock / unlock, characterized in that the electric motor carries a crown or a disc integral with the axis of the engine and provided with a plurality of eccentric axial projections, the element of locking / unlocking being constituted by the finger coupling pivotally mounted on a plate and by a elastic connecting element integral with said finger coupling at one of its ends and one of which free end is disposed in the path of said axial projections by being able to escape said projections.

Thus, the elastic connecting element results in pivoting the coupling finger which cooperates with the peripheral notch provided on the integral disc of the axis of the lock control member lock / unlock such as, for example, the handle door control unit.

Preferably, the coupling finger is mounted at pivoting at one of its ends on a projection of the plate, the pivot axis of said coupling finger being parallel to said plate.

Motor rotation in one direction or the other causes, via axial projections offset, a constraint on the connecting element which, at in turn, causes the pivoting of the coupling finger around its pivot axis on the plate.

The electrical control device lock / unlock can be used as well with a panic lock, the mechanism of which includes a single follower than with a double lock follower. Depending on the type of lock used, the commitment of the coupling finger in the notch allows locking or unlocking said lock.

Therefore, the invention also relates to a lock having a panic function comprising a single-nut lock mechanism and a device for locking / unlocking according to the invention, characterized in that it comprises a first control member constantly manoeuvrable whose axis, integral in rotation of the lock mechanism follower, is also integral in rotation with the plate on which is fixed the coupling finger, the plate being free to rotate and a second actuator whose end of the axis is provided with a disc in which is formed a notch peripheral, the coupling finger, controlled by the electric motor, engaging or deleting from said peripheral notch.

So when the electrical control device lock / unlock control the erasure of the finger coupling out of the notch, the axis of the second member of control is not integral with the lock mechanism and the lock is in the locked position.

The control of the engagement of the coupling finger in the notch by pivoting of the coupling finger drives the securing of the second control member with the lock mechanism, which allows the actuation of the lock.

When the lock is of the type comprising a double follower, it includes a first control member constantly maneuverable whose axis is integral in rotation of the first follower and a second member control whose axis, having its end integral with rotation of the second follower, comprises a disc provided a peripheral notch with which the finger cooperates coupling, the plate being fixed on a base and crossed by the axis of said second member.

Thus, the coupling finger, when it engages in the notch of the disc secured to the axis of the second member of controls, blocks the actuation of said second member and, when it clears out of the notch, unlocks actuation of the control member.

la figure 1 est une vue schématique en perspective éclatée d'une serrure à simple fouillot équipée d'un dispositif de commande électrique selon l'invention ;

la figure 2 est une vue schématique en élévation latérale d'une serrure selon la figure 1 ; et

la figure 3 est une vue schématique en élévation latérale d'une serrure à double fouillot équipée d'un dispositif selon l'invention.

The invention will be clearly understood on reading the following description of exemplary embodiments, with reference to the appended drawing in which:

Figure 1 is a schematic exploded perspective view of a single follower lock equipped with an electrical control device according to the invention;

Figure 2 is a schematic side elevational view of a lock according to Figure 1; and

Figure 3 is a schematic side elevational view of a double-lock lock fitted with a device according to the invention.

The electrical control device shown in the figure 1 includes a reversible electric motor 1 and a finger coupling 2 pivotally mounted on a plate 3. The plate 3 has a parallelepiped shape and extends along a base E against which the lock is asked. The coupling finger 2 is substantially orthogonal to plate 3.

The axis of the motor 1 carries a crown 4 or disc provided with axial projections in the form of studs 5 arranged regularly spaced at the periphery of the crown 4 or of the disc. The coupling finger 2 is provided with a central hole 6.

Between the crown 4 and the coupling finger 2 is interposed an elastic connecting element 7 constituted by a rod of elastic material. One end of the rod 7 is engaged in the path of the studs 5 so as to be able to escape these studs and the other end of the rod 7 is threaded into hole 6.

Coupling finger 2 can occupy a position in which one of its 2 "ends is held in a peripheral notch 14 of a disc 13 secured to an axis 12 of a control handle 11.

Indeed, the rotation of the motor 1 in one direction or in the other product, via the pads 5, a stress on the end of the rod 7 which is driven until it escapes a stud 5 and falls back on the pad 5 next in the direction of rotation. The displacement of the rod 7 causes the coupling finger 2 to pivot.

According to the direction of rotation of motor 1, after stopping the motor, the 2 "end of the coupling finger 2 is maintained in the position shown in Figures 1 and 2 in which it escapes the notch 14 or else in a position in which the coupling finger 2 is engaged in the notch 14. The pivot axis X of the finger coupling 2 is perpendicular to plate 3.

When engine 1 stops, which can be controlled by any suitable means such as a clock, entry or loosening of the handle, etc., the rod 7 is still in support under stress on a stud 5, so that the position of the coupling finger 2, determined by the direction of previous rotation of motor 1, is maintained so stable.

This gives a simple, safe, low-cost control device. bulky and economical.

When the lock is of the type with anti-panic function having a single-nut lock mechanism (Figures 1 and 2), the control member 8, constantly maneuverable, has an axis 9 integral in rotation with the single follower 10 (shown diagrammatically).

The axis 9 is also integral in rotation, at its end, of the plate 3 which is mounted free to rotate relative to the base E against which it extends.

The control member 11, lockable and unlockable by the device according to the invention, comprises an axis 12 provided at one end with a disc 13 carrying a notch device 14.

When the coupling finger 2 is driven in pivoting, it can engage in the notch 14. The axis 12 of the control member 11 is thus secured to the lock mechanism and actuation of this member 11 allows the actuation of the lock mechanism, the rotational drive of the axis 12 being transmitted by the coupling finger 2 to the plate 3, free to rotate and which in turn drives the axis 9 of the other member of operation 8 linked to the follower 10 of the lock mechanism.

To lock the lock, the coupling finger 2 is erased from the notch 14 and the axis 12 of the control member 11 is disconnected from the lock mechanism, the control 11 then being mad in rotation.

Figure 3 shows a lock with panic function equipped with a device according to the invention and the lock mechanism has a double follower. The same references that for Figures 1 and 2 are used with a prime index for the same elements as in Figures 1 and 2.

The control member 8 'has an axis 9' connected to the first follower 10 ', which allows the actuation of the lock at any time, while the second 10 '' follower is connected to the axis 12 'of the second control member 11'.

The plate 3 'is fixed to the base E against which it extends by any means of attachment, for example using quote. It has a bore 15 'crossed by the axis 12 ', said axis 12' being free to rotate in the bore 15 '.

The engagement of the coupling finger 2 'in the notch 14' of the disc 13 ′ carried by the axis 12 ′ blocks said rotation in rotation axis 12 ', which prevents actuation of the lock. Erasing the coupling finger 2 'out of the notch then releases the control member 11 '.

Thus, according to the invention, there is a control device electric lock / unlock lock with a panic function and whatever the type of lock it equips.

Claims (6)

1. Electrical control device for locking/ unlocking a panic lock comprising two control members (8, 11; 8', 11'), one (8, 8') of which is manoeuvrable in a constant manner, comprising a reversible electric motor (1) which controls a locking/unlocking element of the other control member (11, 11') of the lock, comprising a coupling pin (2, 2') which cooperates with a peripheral notch (14, 14') which is provided on a disc (13, 13') which is integral with the other control member (11, 11') of said lock,
   characterised in that the electric motor (1) carries a collar (4) or disc which is integral with the spindle of the motor (1) and is equipped with a plurality of eccentric axial projections (5), the locking/unlocking element comprising the coupling pin (2, 2'), which is mounted so as to pivot on a plate (3), and an elastic connecting element (7) which is integral with said coupling pin (2, 2') at one of its ends, and one free end of which is disposed in the trajectory of said axial projections (5), whilst being able to slip from said projections (5).
2. Device according to claim 1,
   characterised in that the coupling pin (2, 2') is mounted so as to pivot at one of its ends on a projection of the plate (3, 3'), the pivoting axis (X) of said coupling pin (2, 2') being parallel to said plate (3, 3').
3. Device according to one of the claims 1 and 2,
   characterised in that one end of the elastic connecting element (7) is engaged in a median hole (6) of the coupling pin (2, 2').
4. Device according to one of the claims 1 to 3,
   characterised in that the elastic connecting element (7) comprises a rod made of an elastic material.
5. Lock presenting a panic function, comprising a lock mechanism with a single nut (10) and a device for locking/unlocking according to one of the claims 1 to 4,
   characterised in that it comprises a first control member (8) which is constantly manoeuvrable and the spindle (9) of which, integral in rotation with the nut (10) of the lock mechanism, is likewise integral in rotation with the plate (3) on which the coupling pin (2) is fixed, the plate (3) being free in rotation, and a second control member (11), the end of the spindle (12) of which is provided with a disc (13) in which a peripheral notch (14) is recessed, the coupling pin (2), controlled by the electric motor, engaging or moving aside from said peripheral notch (14).
6. Lock presenting a panic function, comprising a lock mechanism with a double nut (10', 10") and a device for locking/unlocking according to one of the claims 1 to 4,
   characterised in that it comprises a first control member (8') which is constantly manoeuvrable and the spindle (9') of which is integral in rotation with the first nut (10') and a second control member (11'), the spindle (12') of which, having its end integral in rotation with the second nut (10"), comprises a disc (13') provided with a peripheral notch with which the coupling pin (2') cooperates, the plate (3') being fixed on a seating (E') and traversed by the spindle (12') of said second member (11').

Images