CN109025489B

CN109025489B - Button sprocket apparatus for lock

Info

Publication number: CN109025489B
Application number: CN201810583264.2A
Authority: CN
Inventors: S·舒恩
Original assignee: Geze GmbH
Current assignee: Geze GmbH
Priority date: 2017-06-08
Filing date: 2018-06-08
Publication date: 2021-01-26
Anticipated expiration: 2038-06-08
Also published as: PL3412851T3; EP3412851B1; EP3412851A1; DE102017209634A1; CN109025489A

Abstract

The invention relates to a push button sprocket arrangement (10) having a push button sprocket (12) and an actuating element (14) which can be coupled to the push button sprocket (12), wherein the push button sprocket (12) comprises a first rotatably mounted component (12A) and a second rotatably mounted component (12B), which can be coupled to one another by means of a first coupling device (20), and to a lock (1) having such a push button sprocket arrangement (10). According to the invention, a second coupling device (30) couples the first component (12A) or the second component (12B) of the push-button sprocket (12) to the actuating element (14).

Description

Button sprocket apparatus for lock

Technical Field

The present invention relates to a push button sprocket arrangement for a lock and a corresponding lock having such a push button sprocket arrangement.

Background

DE102015210948a1 discloses a lock of the generic type, for example, which comprises a lock housing, a cover (Stulp), a bolt, at least one catcher, a button sprocket which can be actuated via a door handle, and a cylinder receptacle. The lock is modularly constructed and divided into a shut-down module comprising a canopy, a deadbolt and at least one trap, and a drive module comprising a button sprocket and a cylinder receptacle. Furthermore, the drive module may comprise a split, electromechanically couplable push-button sprocket. With such a mounting or retrofitting of the drive module, it is possible to: the button on the lock side is decoupled from the opening mechanism, whereby the passage in the protected area can be controlled. This can be achieved by a channel controller, e.g. an electronic access control system. In the event of authorized access, the two halves of the push button sprocket can be electromagnetically activated and coupled to one another, so that the lock can also be actuated by an external push button.

Disclosure of Invention

The purpose of the invention is: a push button sprocket assembly and corresponding lock with such a push button sprocket assembly are provided which can be adapted immediately, simply and quickly by a customer, to a variety of different installation conditions.

To this end, the invention proposes a push button sprocket arrangement having a push button sprocket and an actuating element couplable to the push button sprocket, wherein the push button sprocket comprises a first rotatably mounted member and a second rotatably mounted member, which members can be coupled to one another via a first coupling device, characterized in that the second coupling device couples the first member or the second member of the push button sprocket to the actuating element.

The invention further relates to a lock having a lock housing, a cover plate, at least one bolt, at least one catch and a push-button sprocket arrangement which can be actuated by means of at least one push button, wherein the push-button sprocket arrangement is designed as a push-button sprocket arrangement according to the invention.

In order to provide a push-button sprocket arrangement which can be adapted immediately, simply and quickly, to various installation conditions by a customer, the push-button sprocket arrangement comprises a second coupling device which couples a first rotatably mounted component or a second rotatably mounted component of the multi-part push-button sprocket to the actuating element. Furthermore, the push button sprocket arrangement comprises a first coupling device which couples the first and second members of the push button sprocket to each other.

Furthermore, a lock is proposed, which has a lock housing, a cover plate, at least one bolt, at least one catch and such a push-button sprocket arrangement according to the invention, which can be actuated via at least one push button.

Due to the two-piece construction of the button sprocket, the first member of the split button sprocket may be coupled with the first button and the second member of the split button sprocket may be coupled with the second button. The embodiment of the push button sprocket device according to the invention can be advantageously adapted immediately by the customer to various installation conditions and safety functions by means of the first and second coupling devices. Thus, a customer can simply convert the button sprocket arrangement with DIN-left (DIN links) accessible buttons to a button sprocket arrangement with DIN-right (DIN rechts) accessible buttons by means of the second coupling device. By means of the software and the corresponding energy supply, which is designed, for example, as a capacitive damping device, it is possible to switch over via the first coupling device between a power-off door-opening operation (Fail-Safe-Betrieb), i.e. in the event of a power failure in which the two push buttons or the components of the push button sprocket are not only engaged in the direction of disengagement, but also in the opposite direction, and a power-off door-closing operation (Fail-Secure-Betrieb), i.e. in the event of a power failure in which only the components of the push buttons or push button sprocket are engaged in the direction of disengagement.

The conversion variant advantageously results in high reusability and economy by the same components. Furthermore, few missupplies, replanning due to incorrect ordering or missupplies occur at the customer by the described switching variant of the lock. The second coupling device can be operated, for example, by means of a driver and an electrical control circuit. The embodiments of the lock according to the invention can therefore be operated independently or integrated together via a data bus into a building control system. The drive can be designed, for example, as an electric motor, and the first coupling device can be switched between a first position in which the two members of the push button sprocket are coupled to one another and a second position in which the two members of the push button sprocket are decoupled from one another. By actuating the second coupling device by the engine, the lock state can also be adjusted over a longer period without the supply of current. For example, one may engage two buttons or members of a button sprocket during the day and only engage a button or only a member of a button sprocket in the direction of departure and again disengage a button or a member of a button sprocket in the opposite direction at night. Due to the short engine running time, only a small amount of energy is required for the conversion in an advantageous manner.

In an advantageous embodiment of the push button sprocket arrangement, the first and second members of the push button sprocket can each be embodied in the form of a ring. The first component comprises at least one first coupling region and the second component comprises at least one second coupling region. Preferably, the first member and the second member of the button sprocket may be respectively supported rotatably against the force of the return spring.

In a further advantageous embodiment of the push button sprocket arrangement, the actuating element can comprise an actuating arm, a rotatably mounted ring and at least one third coupling region which connects the actuating arm to the ring. The actuating arm of the actuating element can act, for example, via a suitable transmission element on at least one bolt of the lock. The actuation of the engaged component of the push button sprocket can thus be transmitted to the locking tongue via the corresponding push button. At least a third coupling region of the actuating element can be arranged between the first coupling region of the first member and the second coupling region of the second member of the push button sprocket. The second coupling device can thus be realized particularly simply. The second coupling device may thus comprise, for example, a passage opening through the first, second and third coupling regions and an adjusting element guided axially in the passage opening, which can be moved manually in the passage opening by a predeterminable force consumption. The adjusting element can therefore be designed to be shorter than the through-opening, and in the first axial end position can pass through only the first coupling region of the first member of the push-button sprocket and the third coupling region of the actuating element and in the second axial end position can pass through only the third coupling region of the actuating element and the second coupling region of the second member of the push-button sprocket. In a first axial end position, the adjusting element preferably bears against a first stop formed in the first coupling region and in a second axial end position against a second stop formed in the second coupling region. The adjusting element can be designed, for example, as a press pin or as a countersunk screw or as a slotted pin. In the embodiment as a press or slotted pin, the customer can simply move the adjusting element into the first axial end position or into the second axial end position by means of a suitable tool, for example a screwdriver, and predetermine: the first member of the push button sprocket and the second member of the push button sprocket are coupled to the operating element. In the embodiment as a countersunk-head screw, the adjusting element can be moved from the first axial end position into the second axial end position or vice versa by a screwing movement with the screwdriver.

In a further advantageous embodiment of the push button sprocket arrangement, the first coupling device can comprise an adjustment device, at least one first recess formed on at least one fourth coupling region of the first member, at least one second recess formed in at least one fifth coupling region of the second member of the push button sprocket in alignment with the at least one first recess, and at least one coupling pin which is guided axially movably in the first recess and/or in the second recess. In this case, the at least one coupling pin can be designed to be shorter than the total length of the first recess and the second recess. In this case, the at least one coupling pin can be arranged completely in the first recess or in the second recess in the first axial end position and can be arranged completely in the first recess and in the second recess in the second axial end position. Thereby, the first member and the second member of the button sprocket are decoupled from each other when the at least one coupling pin is in its first axial end position. Optionally, the first member and the second member of the button sprocket are coupled to each other when the at least one coupling pin is in its second axial end position. The adjusting device may have a base body designed as a ring segment, which is connected to the first component or to the second component of the push button sprocket in a rotationally movable manner.

In a further advantageous embodiment of the push button sprocket arrangement, the movement of the at least one coupling pin can be performed magnetically. The at least one coupling pin can therefore be of magnetic design. For this purpose, the coupling pin may comprise a magnet or be designed as a magnet. Furthermore, the adjusting device can have at least two permanent magnets, which can be arranged in different polarities in the basic body of the adjusting device. The adjustment device can be adjusted by pulling the at least one magnetic coupling pin out of the corresponding recess or pressing it into the corresponding recess. In a first rotational position of the base body of the adjusting device, the first permanent magnet can therefore be arranged above the corresponding recess and attract the at least one magnetic coupling pin. In a second rotational position of the base body, the second permanent magnet can be arranged above the corresponding recess and can repel the at least one magnetic coupling pin. In order to move the base body between the first and second rotational positions, the base body can have a partial sector on the circumferential side, which can engage with the toothing of the drive gear. The base body of the adjusting device can thus be moved between the two rotational positions simply and quickly.

In a further advantageous embodiment of the push button sprocket arrangement, the first member and/or the second member of the push button sprocket may have an inner polygon which can be coupled with a corresponding first outer polygon of the first push button or of the second push button for manipulation. The inner polygon can be machined directly into the corresponding component or into an insert, which can be connected to the corresponding component in a rotationally fixed manner. Thus, for example, a first inner polygon can be machined directly into a first component of the push button sprocket, and a second inner polygon can be machined into an insert which can be connected in a rotationally fixed manner to a second component of the push button sprocket. Furthermore, the first inner polygon may be coupled with the first button for manipulation by the first outer polygon, and the second inner polygon of the insert may be coupled with the second outer polygon of the second button for manipulation. By omitting the insert and the correct positioning of the adjusting element when assembling the lock, the lock variant can be realized and constructed with a push button accessible on both sides by the first coupling device. In this variant of the lock, the adjusting element of the second coupling device can be adjusted such that the component of the push-button sprocket is coupled to the actuating element without an inner polygon.

In an advantageous embodiment of the lock, the adjusting element of the second coupling device can be transferred in the DIN-right lock into the first axial end position and in the DIN-left lock into the second axial end position.

In a further advantageous embodiment of the lock, the electric motor can act as a drive via a spindle on the drive gear and move the base body of the adjusting device between the first and the second rotational position via the toothed segment. This enables the drive of the actuating device to be realized cost-effectively and functionally reliably.

Drawings

Embodiments of the invention are further elucidated by means of the drawings. In the drawings, like reference numerals designate elements or components that perform the same or similar functions.

Wherein:

FIG. 1 shows a schematic perspective view of the components essential to the invention of an embodiment of a lock according to the invention with a push button sprocket arrangement according to the invention;

figure 2 shows a schematic top view of the lock according to the invention in figure 1;

fig. 3 shows a schematic perspective view of a first embodiment of a push button device according to the invention for the lock according to the invention in fig. 1 and 2;

fig. 4 shows a schematic perspective view of a second embodiment of a push button device according to the invention for the lock according to the invention in fig. 1 and 2;

fig. 5 shows a schematic cross-sectional view of the push-button device according to the invention in a first coupling state along the section line IV-IV in fig. 3;

fig. 6 shows a schematic cross-sectional view of the push-button device according to the invention in a second coupling state, along the section line IV-IV in fig. 3;

fig. 7 shows a schematic cross-sectional view of the push-button device according to the invention in a third coupling state, along the section line IV-IV in fig. 3;

fig. 8 shows a schematic cross-sectional view of the push button device according to the invention in a fourth coupling state along the section line IV-IV in fig. 3.

Detailed Description

As can be seen from fig. 1 to 8, the lock 1 according to the invention comprises a carrier 3 and a push

button sprocket arrangement

10, 10A for arrangement on the carrier 3. Furthermore, the lock 1 comprises a lock housing, not shown in detail, a cover plate, not shown in detail, at least one locking tongue, not shown in detail, and at least one catch, not shown in detail. The push button sprocket arrangement 10 can be actuated via at least one push button, not shown in detail. Such locks are known in principle from the prior art and therefore no further description of the mode of operation is given here. Preferably, the lock 1 according to the invention can be designed similarly to the modular locks disclosed in DE102015210948a 1. The embodiments of the lock 1 according to the invention are distinguished from locks known from the prior art by the push button sprocket arrangement 10 according to the invention.

As can be further seen from fig. 1 to 8, the illustrated exemplary embodiments of the push

button sprocket arrangement

10, 10A according to the invention each comprise a push button sprocket 12 and an actuating element 14 which can be coupled to the push button sprocket 12. The push button sprocket 12 comprises a first rotatably mounted component 12A and a second rotatably mounted component 12B, which can be coupled to one another via a first coupling device 20. According to the invention, the second coupling device 30 can couple the first component 12A or the second component 12B of the push button sprocket 12 with the actuating element 14.

In fig. 1 to 4, the two

members

12A, 12B of the button sprocket 12 are shown transparently for better understanding of the present invention.

As can be further seen from fig. 1 to 8, the first and

second components

12A, 12B of the push button sprocket 12 are each designed in the form of a ring and are each mounted so as to be rotatable against the force of a

return spring

18A, 18B. Furthermore, in the exemplary embodiment shown, the first component 12A has a first coupling region 12.1A. Similarly, the second component 12B has a second coupling region 12.1B. The actuating element 14 comprises in the illustrated embodiment an actuating arm 14.1, a rotatably mounted ring 14.2 and a third coupling region 14.3, which connects the actuating arm 14.1 to the ring 14.2.

As can be further seen from fig. 1 to 8, in the exemplary embodiment shown, at least the third coupling region 14.3 of the actuating element 14 is arranged between the first coupling region 12.1A of the first component 12A and the second coupling region 12.1B of the second component 12B of the push button sprocket 12. Here, the rotary movement of the

annular members

12A, 12B of the button sprocket 12 is guided in the lock housing. The rotary movement of the ring 14.2 of the actuating element 14 is guided by the

ring members

12A, 12B of the push-button sprocket 12 which are not coupled to the actuating element 14. For this purpose, the ring 14.2 of the actuating element 14 is inserted in the illustrated embodiment into a corresponding circular recess of the second component 12B and the first component 12 is inserted with a circular collar into an opening of the ring 14.2.

As can be seen in particular from fig. 5 and 6, the second coupling device 30 comprises a through-bore 32 which passes through the first coupling region 12.1A, the second coupling region 12.1B and the third coupling region 14.3, and an adjusting element 34 which is guided axially in the through-bore 32 and can be moved manually in the through-bore 32 with a predeterminable force consumption. The adjusting element 34 is shorter than the through-opening 32. As can be seen further from fig. 5 and 6, the adjusting element 34 in a first axial end position bears against a first stop 36A formed in the first coupling region 12.1A and in a second axial end position bears against a second stop 36B formed in the second coupling region 12.1B. In the illustrated embodiment, the adjusting element 34 is embodied as a pressing pin 34A and can be moved from a first axial end position into a second axial end position and vice versa, for example, by introducing a screwdriver. In alternative embodiments, which are not shown, the adjusting element 34 can be designed as a countersunk screw or as a slotted pin. Of course, other embodiments of the actuating element 34 are also conceivable, which are suitable for coupling the first component 12A or the second component 12B of the push button sprocket 112 to the actuating element 34.

The adjusting element 34 can therefore be easily transferred into the first axial end position in the DIN right lock and into the second axial end position in the DIN left lock without great effort.

As can be seen further from fig. 5, the actuating element 34 in the illustrated first axial end position passes through only the first coupling region 12.1A of the first component 12A of the push button sprocket 12 and the third coupling region 14.3 of the actuating element 14. The first component 12A of the push button sprocket 12 is thereby coupled to the actuating element 14, such that a corresponding actuation of a first push button, not shown, coupled to the first component 12A of the push button sprocket 12 results in an actuation of at least one locking tongue by the actuating element 14 coupled to the first component 12A. In the position of the actuating element 34, the second component 12B of the push button sprocket 12 is decoupled from the actuating element 14, so that a corresponding actuation of a second push button, not shown, which is coupled to the second component 12B of the push button sprocket 12, results in no actuation of the at least one locking tongue.

As can be seen further from fig. 6, in the second axial end position shown, the actuating element 34 passes only through the third coupling region 14.3 of the actuating element 14 and the second coupling region 12.1B of the second component 12B of the push button sprocket 12. The second component 12B of the push button sprocket 12 is thereby coupled to the actuating element 14, such that a corresponding actuation of a second push button, not shown, coupled to the second component 12B of the push button sprocket 12 results in an actuation of at least one locking tongue by the actuating element 14 coupled to the second component 12B. In the position of the adjusting element 34, the first component 12A of the push button sprocket 12 is decoupled from the actuating element 14, so that a corresponding actuation of a first push button, not shown, which is coupled to the first component 12A of the push button sprocket 12 does not result in the actuation of at least one locking tongue.

As can be further seen from fig. 1 to 8, the first coupling device 20 comprises, in the exemplary embodiment shown, an adjusting device 28, two first recesses 22A formed on the two fourth coupling regions 12.2A of the first member 12A, two second recesses 22B formed in alignment with the two first recesses 22A on the two fifth coupling regions 12.2B of the second member 12B of the push button sprocket 12, and two coupling pins 24 guided axially movably in the first recesses 22A and/or in the second recesses 22B.

As can be seen in particular from fig. 7 and 8, the coupling pin 24 is embodied to be shorter than the total length of the aligned first recess 22A and the second recess 22B. As can be further seen from fig. 7, in the illustrated first axial end position, the coupling pin 24 is arranged completely in the second recess 22B of the second component 12B of the push button sprocket 12, so that the first component 12A and the second component 12B of the push button sprocket 12 are decoupled from one another. As can be further seen from fig. 8, the coupling pins 24 are arranged in the illustrated second axial end position in the first recesses 22A of the first component 12A and in the second recesses 22B of the second component 12B of the push button sprocket 12, so that the first component 12A and the second component 12B of the push button sprocket 12 are coupled to one another.

As can be further seen from fig. 1 to 8, the adjusting device 28 has a base body 28A, which is designed as a ring segment and which, in the illustrated embodiment, is connected to the second component 12B of the push button sprocket 12 in a rotationally movable manner. For this purpose, the ring segment-shaped base body 28A is guided through the annular flange of the second component 12B of the push button sprocket 12. In the illustrated embodiment, the two coupling pins 24 are each moved by magnetic force. The coupling pin 24 is therefore designed to be magnetic. For this purpose, the adjusting device 28 has four permanent magnets 28.1, 28.2, which are arranged in pairs in the base body 28A with different polarities. In this case, the two magnet pairs are arranged opposite one another, that is to say at a distance of approximately 180 ° on the base body 28A. The two individual permanent magnets 28.1, 28.2 in the two magnet pairs each have a distance of approximately 20 ° from one another in the exemplary embodiment shown.

As can be seen further from fig. 3 and 7, in the first rotational position of the base body 28A, in each case one first permanent magnet 28.1 is arranged above the respective recess 22B and attracts the respective magnetic coupling pin 24. This means that the polarization of the first permanent magnet 28.1 is selected such that in the first rotational position the different poles of the permanent magnet 28.1 and the magnetic coupling pin 24 face each other and attract each other.

As can be seen further from fig. 4 and 8, in the second rotational position of the base body 28A, in each case one second permanent magnet 28.2 is arranged above the respective recess 22B and repels the respective magnetic coupling pin 24. This means that the polarization of the second permanent magnet 28.1 is selected such that in the second rotational position the same poles of the permanent magnet 28.1 and the magnetic coupling pin 24 face each other and repel each other.

As can be seen in particular from fig. 7 and 8, the first recess 22A and the second recess 22B are each designed as a blind hole. The base of the first recesses 22A in each case forms a first stop 26A and the base of the second recesses 22B in each case forms a second stop 26B for the coupling pin 24.

In order to move the base body 28A between the first and second rotational position, the base body 28A has a sector 28.3 on the circumferential side, which meshes with the first toothing 9.1 of the drive gear 9. As can be seen in particular from fig. 2, the electric motor acts as a drive 5 via the spindle 7 on the second toothing 9.2 of the drive gear 9 and moves the base body 28A of the adjusting device 28 via the toothed segment 28.3 between the first and the second rotational position.

As can be further seen from fig. 1 to 8, the first component 12A has in all exemplary embodiments an inner polygon 12.4, which is designed here as an inner quadrilateral and is introduced directly into the first component 12A of the push button sprocket 12. The inner polygon of the first member 12A of the button sprocket 12 may be coupled with a corresponding outer polygon of a first button, not shown, for manipulation.

In the first exemplary embodiment of the push button sprocket arrangement 10 shown in fig. 1 to 3 and 5 to 8, the second component 12B has an inner polygon 16.1, which is designed here as an inner quadrilateral and is introduced into an insert 16, which is connected to the second component 12B of the push button sprocket 12 in a rotationally fixed manner. The inner polygon 16.1 of the insert 16 can be coupled for actuation with a corresponding outer polygon of a second button, not shown.

In the first exemplary embodiment of the push-button sprocket assembly 10 shown in fig. 1 to 3 and 5 to 8, the software and the corresponding energy supply or emergency supply can be switched via the first coupling device 20 between a power-off door-opening operation, i.e. in the event of a power failure in which the

components

12A, 12B of the two push-buttons or push-button sprockets 12 are engaged both in the direction of disengagement and in the opposite direction, and a power-off door-closing operation, i.e. in the event of a power failure in which only the

components

12A, 12B of the push-button or push-button sprockets 12 are engaged in the direction of disengagement.

If the adjusting element 34 of the second coupling device 30 is in the first axial end position shown in fig. 5, the first component 12A of the push button sprocket 12 is coupled with the actuating element 14 by means of the adjusting element 34. As a result, an actuation of the first pushbutton coupled to the first component 12A of the pushbutton sprocket 12 can be transmitted via the first component 12A and the actuating element 34 to the actuating element 14 and to the locking bolt operatively connected to the actuating element 14. If the coupling pin 24 of the first coupling device 20 is in the first axial end position shown in fig. 7, the first and

second members

12A, 12B of the push button sprocket 12 are decoupled from one another, so that the actuation of the second push button coupled with the second member 12B of the push button sprocket 12 does not cause an actuation of the locking tongue. If the coupling pin 24 of the first coupling device 20 is in the second axial end position shown in fig. 8, the first and

second members

12A, 12B of the push button sprocket 12 are coupled to one another in such a way that an actuation of the second push button coupled to the second member 12B of the push button sprocket 12 is transmitted via the first coupling device 20 to the first member 12A of the push button sprocket 12 and from there via the actuating element 34 to the actuating element 14 and to the locking bolt. Thus, the emergency function can be implemented via the first push button which is always coupled and the access authorization request can be implemented via the second push button which can be coupled, so that only authorized users after an authorization check and a corresponding control signal acting on the drive 5 can unlock the lock 1.

If the adjusting element 34 of the second coupling device 30 is in the second axial end position shown in fig. 6, the second member 12B of the push button sprocket 12 is coupled with the actuating element 14 via the adjusting element 34. As a result, an actuation of the second pushbutton coupled to the second component 12B of the pushbutton sprocket 12 can be transmitted via the second component 12B and the actuating element 34 to the actuating element 14 and to the latch bolt operatively connected to the actuating element 14. If the coupling pin 24 of the first coupling device 20 is in the first axial end position shown in fig. 7, the first and

second members

12A, 12B of the push button sprocket 12 are decoupled from one another, so that an actuation of the first push button coupled with the first member 12A of the push button sprocket 12 does not cause an actuation of the locking tongue. If the coupling pin 24 of the first coupling device 20 is in the second axial end position shown in fig. 8, the first and

second members

12A, 12B of the push-button sprocket 12 are coupled to one another in such a way that the second push button coupled to the first member 12A of the push-button sprocket 12 is transferred via the first coupling device 20 to the second member 12B of the push-button sprocket 12 and from there is transmitted via the adjusting element 34 to the actuating element 14 and to the locking means. Thus, the emergency function can be implemented via the always coupled second push button and the access authorization request can be implemented via the couplable first push button, so that only after an authorization check the authorized user and the corresponding control signal acting on the drive 5 can unlock the lock 1.

In the second embodiment of the push button sprocket arrangement 10 shown in fig. 4, the insert 16 with the inner polygon 16.1 is removed and the second member 12B of the push button sprocket 12 has no inner polygon and therefore cannot be directly manipulated. Furthermore, the adjusting element 34 is in the second axial end position shown in fig. 6, so that the second member 12B of the push button sprocket 12 is coupled with the actuating element 14 via the adjusting element 34. In the second exemplary embodiment shown, the accessible push button can be switched and configured by means of the first coupling device 20. Thus, the two

members

12A, 12B of the push button sprocket 12 can be coupled to each other by means of the first coupling device 20 and the adjustment device 28 operated by the driver 5. The base body 28A of the actuating device 28 with the permanent magnets 28.1, 28.2 must be rotated only approximately 20 ° in order to couple or decouple the first component 12A of the push button sprocket 12, which is not connected to the actuating element 14, with the second component 12B of the push button sprocket, which is connected to the actuating element 14 via the actuating element 34.

If the coupling pin 24 of the first coupling device is in the first axial end position shown in fig. 7, the first and

second members

12A, 12B of the push button sprocket 12 are decoupled from one another, so that an actuation of the first push button coupled with the first member 12A of the push button sprocket 12 does not cause an actuation of the locking tongue. If the coupling pin 24 of the first coupling device is in the second axial end position shown in fig. 8, the first and

second members

12A, 12B of the push button sprocket 12 are coupled to one another in such a way that an actuation of the first push button coupled to the first member 12A of the push button sprocket 12 is transmitted via the first coupling device 20 to the second member 12B of the push button sprocket 12 and from there via the actuating element 34 to the actuating element 14.

List of reference numerals

1 Lock

3 support

5 driver

7 screw rod

9 drive gear

9.1, 9.2 toothing

10. 10A button sprocket device

12 button sprocket

12A, 12B member

12.1A, 12.2A coupling region

12.1B, 12.2B coupling region

12.3A, 12.3B spring arms

12.4 first inner polygon

14 operating element

14.1 operating arm

14.2 Ring

14.3 coupling region

16 insert

16.1 second inner polygon

18A, 18B return spring

20 first coupling device

22A, 22B gap

24 coupling pin

26A, 26B stop

28 adjustment device

28A base

28.1, 28.2 permanent magnet

28.3 sector

30 second coupling device

32 through hole

34 adjusting element

34A extrusion pin

36A, 36B stop

Claims

1. Button sprocket arrangement (10, 10A) having a button sprocket (12) and an actuating element (14) which can be coupled to the button sprocket (12), wherein the button sprocket (12) comprises a first rotatably mounted component (12A) and a second rotatably mounted component (12B) which can be coupled to one another by means of a first coupling device (20),

characterized in that the second coupling device (30) couples the first component (12A) or the second component (12B) of the push-button sprocket (12) to the actuating element (14), wherein the first coupling device (20) comprises an adjusting device (28), at least one first recess (22A) formed on at least one fourth coupling region (12.2A) of the first component (12A), at least one second recess (22B) formed in at least one fifth coupling region (12.2B) of the second component (12B) of the push-button sprocket (12) in alignment with the at least one first recess (22A), and at least one coupling pin (24) which is guided in the first recess (22A) and/or in the second recess (22B) in an axially movable manner.

2. The push button sprocket arrangement (10, 10A) as claimed in claim 1, characterized in that the first and second members (12A, 12B) of the push button sprocket (12) are each designed in an annular shape, wherein the first member (12A) comprises at least one first coupling region (12.1A) and the second member (12B) comprises at least one second coupling region (12.1B).

3. The push button sprocket apparatus (10, 10A) as claimed in claim 1, wherein the first member (12A) and the second member (12B) of the push button sprocket (12) are respectively supported rotatably against the force of a return spring (18A, 18B).

4. Push button sprocket arrangement (10, 10A) according to one of claims 1 to 3, wherein the actuating element (14) comprises an actuating arm (14.1), a rotatably mounted ring (14.2) and at least one third coupling region (14.3) which connects the actuating arm (14.1) with the ring (14.2).

5. The push button sprocket arrangement (10, 10A) as claimed in claim 4, wherein at least a third coupling region (14.3) of the actuating element (14) is arranged between the first coupling region (12.1A) of the first member (12A) and the second coupling region (12.1B) of the second member (12B) of the push button sprocket (12).

6. Push button sprocket arrangement (10, 10A) according to claim 5, wherein the second coupling device (30) comprises a through-bore (32) passing through the first coupling region (12.1A), the second coupling region (12.1B) and the third coupling region (14.3) and an adjusting element (34) guided axially in the through-bore (32) and manually movable in the through-bore (32) by a predeterminable force consumption.

7. The push button sprocket arrangement (10, 10A) according to claim 6, wherein the adjusting element (34) is designed to be shorter than the through hole (32), wherein the adjusting element (34) in a first axial end position passes through only the first coupling region (12.1A) and the third coupling region (14.3) and in a second axial end position passes through only the third coupling region (14.3) and the second coupling region (12.1B).

8. The push button sprocket arrangement (10, 10A) as claimed in claim 7, wherein the adjusting element (34) in a first axial end position abuts against a first stop (36A) formed in the first coupling region (12.1A) and in a second axial end position abuts against a second stop (36B) formed in the second coupling region (12.1B).

9. Push button sprocket arrangement (10, 10A) according to one of the claims 6 to 8, wherein the adjustment element (34) is designed as a press pin (34A) or as a countersunk screw or as a slotted pin.

10. Push button sprocket arrangement (10, 10A) according to one of claims 1 to 3, wherein the at least one coupling pin (24) is designed to be shorter than the total length of the first and second interspaces (22A, 22B), wherein the at least one coupling pin (24) is arranged completely in the first interspace (22A) or in the second interspace (22B) in a first axial end position and in the first and second interspaces (22A, 22B) in a second axial end position.

11. Push button sprocket arrangement (10, 10A) according to one of claims 1 to 3, wherein the adjusting device (28) has a base body (28A) designed as a ring segment, which is connected rotatably movably to the first component (12A) or to the second component (12B) of the push button sprocket (12).

12. The push button sprocket apparatus (10, 10A) as claimed in one of claims 1 to 3, wherein said at least one coupling pin (24) is movable by magnetic energy.

13. Push button sprocket arrangement (10, 10A) according to claim 12, wherein the at least one coupling pin (24) is designed to be magnetic and the adjusting device (28) has at least two permanent magnets (28.1, 28.2) which are arranged in the base body (28A) with different polarities.

14. The push button sprocket assembly (10, 10A) as claimed in claim 13, wherein in a first rotational position of the base body (28A) a first permanent magnet (28.1) is disposed above the corresponding void (22A, 22B) and attracts the at least one magnetic coupling pin (24), and in a second rotational position of the base body (28A) a second permanent magnet (28.2) is disposed above the corresponding void (22A, 22B) and repels the at least one magnetic coupling pin (24).

15. Push button sprocket assembly (10, 10A) according to claim 14, wherein the base body (28A) has a sector of teeth (28.3) in a circumferential portion, which sector of teeth engages with a tooth portion (9.1) of the drive gear (9) in order to move the base body (28A) between the first and second rotational positions.

16. Push button sprocket arrangement (10, 10A) according to one of the claims 1 to 3, wherein the first member (12A) and/or the second member (12B) has an inner polygon (12.4, 16.1) which can be coupled with a corresponding outer polygon of the first push button or of the second push button for manipulation.

17. Push button sprocket arrangement (10, 10A) according to claim 16, wherein the inner polygons (12.4, 16.1) are introduced directly into the respective first member (12A) or insert (16) which is connected non-rotatably to the respective second member (12B).

18. A lock (1) having a lock housing, a cover plate, at least one bolt, at least one catcher and a push-button sprocket arrangement (10, 10A) which is operable via at least one push button,

characterized in that the push button sprocket arrangement (10, 10A) is provided as a push button sprocket arrangement according to one of the claims 1 to 17.

19. Lock (1) according to claim 18, characterized in that the second coupling device (30) comprises a through-hole (32) passing through the first coupling region (12.1A), the second coupling region (12.1B) and the third coupling region (14.3) and an adjusting element (34) guided axially in the through-hole (32), the adjusting element (34) being transferred in the DIN-right lock into a first axial end position and in the DIN-left lock into a second axial end position.

20. Lock (1) according to claim 18 or 19, characterized in that the electric motor acts as a drive (5) via the screw (7) on the drive gear (9) and moves the base body (28A) of the adjusting device (28) via the toothed sector (28.3) between the first and the second rotational position.