EP2561164A1

EP2561164A1 - Lock-cylinder arrangement

Info

Publication number: EP2561164A1
Application number: EP11719159A
Authority: EP
Inventors: Anatoli Stobbe; Wilfried Herrmann
Original assignee: Astra Gesellschaft fuer Asset Management mbH and Co KG
Current assignee: Astra Gesellschaft fuer Asset Management mbH and Co KG
Priority date: 2010-04-23
Filing date: 2011-03-25
Publication date: 2013-02-27
Anticipated expiration: 2031-03-25
Also published as: DE102010018243B4; EP2561164B1; DE102010018243A1; WO2011131163A1

Abstract

A description is given of a lock-cylinder arrangement comprising a housing with a locking bit, at least a first actuating boss and an electromechanical coupling. The coupling has female components in the actuating boss and in the locking bit and comprises an axially displaceable first male component which, in the coupled state, is arranged in a rotationally and positively locking manner in the two female components of the actuating boss and locking bit and, in the uncoupled state, is arranged only in one of the two female components of the actuating boss and locking bit. The male component is coupled to a controllable drive motor via a gear mechanism.

Description

Lock cylinder arrangement

The invention relates to a lock cylinder arrangement according to the preamble of claim 1.

In a lock cylinder arrangement known from DE 10 2008 018 906 A1, a coupling comprises a spring-loaded rocker arm, which is supported on a spring-loaded rocker. The rocker in turn is actuated by an electromagnet and is only in an active position as long as the electromagnet is energized.

US 2010/0012451 A1 discloses a lock cylinder arrangement with an electromechanical coupling, in which a cage with coupling pins is moved by a drive motor with a worm.

The invention is based on the object, a lock cylinder assembly with an electromechanical coupling between an actuating knob and a

Lock to create, which requires only in the actuation phase, but not in the engaged and decoupled state electrical energy and includes a transmission that has independent elastic properties.

This object is achieved in a lock cylinder assembly according to the preamble of claim 1 by the features of this claim.

Further developments and advantageous embodiments will become apparent from the dependent claims.

In the solution according to the invention, a cam can be manually operated by an actuating knob, provided that an electromechanical coupling between the cam and a shaft of the actuating knob is engaged. In the disengaged state of the electromechanical coupling, only a blank rotation is performed when pressing the operating knob. The coupling between the actuating Knob and the cam is caused by axial displacement of a Vaterstücks. Here, the father piece is coupled to a controllable drive motor via a spring-elastic transmission. The transmission comprises a helically connected to a drive shaft of the drive motor helical compression spring and engaging in a space between two spring courses of the helical compression spring pin on an extension of the axially displaceable first Vaterstücks

With this construction it is achieved that a rotational movement in a longitudinal movement and at the same time a small driving force is converted into a large thrust. In addition, the helical compression spring prevents blocking of the drive motor, if in the current Drehausrichtung the father piece this does not fit into the adjacent nut piece. Rather, only a pressure on the father piece is exercised, so that this can penetrate into the nut piece when turning the operating knob. Furthermore, the spring tension of the helical compression spring in the respective end position facilitates starting of the drive motor in the opposite direction of rotation with respect to the last direction of rotation and braking of the drive motor upon reaching the end position. As a result, an otherwise usual increased starting energy requirement is reduced and a simple controllability of the drive motor is achieved only by switching on during a time interval. In addition, a helical compression spring is a particularly simple and inexpensive embodiment of a transmission.

Preferably, the nut pieces of the electromechanical coupling are arranged in the cam and in waves of the actuating knob. A first male engages in the engaged state in both nut pieces of cam and the shaft of a first operating knob while it engages in the disengaged state only in one of the two nut pieces of cam and the shaft of the first operating knob.

By positioning the male piece in both nut pieces of the shaft of the operating knob and the lock bit, both nut pieces are rotationally form-fitting connected and are so engaged. In the disengaged state, however, the father's piece is only in one of the two nut pieces, so that the shaft of the operating knob can only be rotated freely, without the cam is rotated. After transferring the father piece in the engaged or disengaged state, the father piece is in one of the two end positions and thus in a stable state. To maintain this state, no electrical energy is necessary because the longitudinal movement is performed by a drive motor with intermediate gear.

According to a further development, a second father piece is axially coupled to the first father piece, wherein the second father piece engages in its engaged state in both nut pieces of cam and the shaft of a second actuating knob, while in its disengaged state only in one of the two nut pieces of cam and engages the shaft of the second actuating knob and the second father piece is coupled in the coupling direction with the first father piece via a helical compression spring and in the disengaging via a connected to the first father piece driver linkage.

The coupling of a second axially displaceable Vaterstücks with the first axially displaceable Vaterstück by means of another helical compression spring in the coupling prevents a rigid connection between the Vaterstücken and allows the first father piece can penetrate already in the adjacent nut piece, if in the current Drehausrichtung of the second Vaterstücks this not yet fit into the adjacent mother piece. Analogous to the first helical compression spring then only a pressure on the second father piece is exercised, so that this can then penetrate when turning the second operating knob in the adjacent nut piece.

In the reverse direction, however, the second father piece is pulled out of the nut piece by the Mitnehmergestänge as soon as the first father piece has covered a free path. The Mitnehmergestänge may have a head equipped with a pin which is longitudinally adjustable in the first father and lockable in a parking position, with its shaft slidably passes through the second father's piece and forms a stop for driving the second Vaterstücks in Auskuppelrichtung with his head.

By adjusting the pin relative to the first father piece, the maximum distance between the first and the second father piece can be changed. It can thereby be achieved that the first male piece is always in the engaged position, while the second male piece is engageable and disengageable.

By this measure, the lock cylinder assembly can be preset mechanically without actuation by the drive motor to the function of a passage door or access door, depending on whether the shaft of the first operating knob is constantly rotatably connected to the lock bit or not.

Preferably, the pin is lockable in the first father piece by means of a radially arranged screw, wherein the screw is accessible and operable by a longitudinal slot in the housing.

It is created as a universal lock cylinder assembly, in which by means of this screw adjustment or conversion can be made only at the installation.

In one embodiment of the invention, the drive motor and a control circuit and a power source in the first operating knob are arranged in a safe area and commands to the control circuit are transmitted without contact by a spatially remote from the second operating knob in the uncertain area reading and evaluating device. This allows a compact arrangement of all safety-relevant components while avoiding a leadership of control lines through the housing of the lock cylinder. Commands to the control circuit for enabling or disabling the operation knob are transmitted without contact by a separate reading and evaluating device, in particular via a radio link. Access to all safety-relevant mechanical and electronic components of the lock cylinder arrangement is thus possible only from the safe area.

According to a development, at least one extension disc is arranged on at least one end face of the housing and handles of the actuating knob are arranged axially adjustable longitudinally on free ends of the shafts and can be locked in a setting position by a clamping device.

The lock cylinder arrangement can therefore consist of a basic housing of uniform length and be adapted to different dimensions of doors and locks by axial addition with one or more extension discs. This adjustment can be made on both the secure and the insecure side. The handles of the operating knob can be arranged by the clamping device so that they are flush with attached to the door leaves lever handles.

Furthermore, it can be provided outside of the installation space, which is occupied by the rotatable shaft, to arrange an emergency charging contact on the facing to an unsafe area side of the housing and a charging cable through an axially parallel hole in the housing and in the presence of at least one extension disc and an axially parallel bore in the extension disc and through a radial bore to a sliding contact, which is pressed on a slip ring. The slip ring is connected to the energy source via a cable. It is sufficient here an insulated cable, since the housing can be used as the opposite pole. In the event of an unforeseen exhaustion of the electrical energy source, it is possible to charge the energy source at least temporarily from the insecure area and thus restore the function of the lock cylinder arrangement. However, only a charge of the energy source is possible, but not a bridging of the electromagnetic clutch.

The control circuit may comprise an evaluation circuit and a receiver, by means of which external commands "Permanently open", "Dauerzu" each in a position of the first and second Vaterstücks by driving the drive motor can be implemented.

As a result, states of the electromechanical coupling can be set separately from an individual access authorization and can be set externally by commands transmitted electronically. After triggering the command "Permanently open" both father pieces are moved axially so that the mother pieces of Schließbarts are rotatably connected to both nut pieces of the waves of the operating knob. After triggering the command "Dauerzu" both parent pieces are moved axially so that they are each arranged only in one of the nut pieces of cam and shafts of the operating knob and individual access requests are ignored.

Furthermore, the control circuit may comprise a voltage sensor, by means of which the command "Permanently open" can be implemented when the voltage falls below a voltage value of the energy source.

It is prevented by this measure that the lock cylinder assembly fails when falling below a voltage value of the power source and can only be opened by force. The control circuit may comprise a transmitter, by means of which the states of

Lock cylinder arrangement "battery condition", "removal of the handle" are externally transferable.

As a result, threatening functional failures and manipulations, such as the unauthorized removal of the handle and simultaneous access to the battery compartment and the control circuit can be detected and reported and countermeasures taken.

The invention will be explained with reference to an embodiment shown in the drawing.

In the drawing show:

Fig. 1 shows a longitudinal section of a lock cylinder assembly with

Actuating knobs, both operating knobs being uncoupled,

2 shows a longitudinal section of the lock cylinder arrangement with actuating knobs, wherein both actuation knobs are engaged,

3 shows a longitudinal section of the lock cylinder arrangement with actuating knobs, wherein a first actuating knob is engaged and a second actuating knob is decoupled, and

4 a cross section of the lock cylinder arrangement on the

Section line AA from FIG. 3. Fig. 1 shows a longitudinal section of a lock cylinder assembly with a lock cylinder 10 and Actuate ungsknaufen 12, 14. The lock cylinder 10 includes a housing 16 with a pivotable cam 18. The actuating knob 12 and 14 each consist of shafts 20 and 22, in the housing 16 extend coaxially to the pivot axis of the Schließbarts 18 and carry on the outside handles 24 and 26. At the ends of the shafts 20 and 22 facing the cam 18 there are recesses which constitute nut pieces 28 and 30. The cam 18 also has on its two end faces recesses, the nut pieces 32 and 34 represent. As a coupling element are each father pieces 36 and 38th

In cross-section, the nut pieces and the male pieces have a different outer circle from a circle, so that when meshing of the male and female pieces a rotationally positive connection is formed. As is apparent from the cross-sectional view in Fig. 4, it is a cruciform shape with rounded corners.

In the illustration of Fig. 1, the male piece 36 is completely in the nut piece 28 and the male piece 38 completely in the nut piece 34. In this position, the shafts 20 and 22 are not coupled to the cam 18. If the operating knob 12 and 14 are rotated via the handles 24 and 26, they rotate freely through, without the cam 18 is rotated.

Fig. 2 shows a state in which the male pieces 36 and 38 are shifted axially to the left in the drawing and are now positioned both in the nut piece 28 and in the nut piece 32 or both in the nut piece 30 and in the nut piece 34. In the case, the shafts 20 and 22 with the nut pieces 28 and 30 via the male pieces 32 and 34 with the nut pieces 32 and 34 of the Schließbarts 18 rotationally positively coupled and upon actuation of the actuating knob 12 and 14 via the handles 24 and 26 of the Locked 18 turned.

The axial displacement of the male piece 36 takes place with the aid of a drive motor 40 and a gear, consisting of a helical compression spring 42, which is mounted on the rotary axis 44 of the drive motor 40 is arranged rotationally fixed, wherein between the

Screw threads of the helical compression spring 42, a pin 46 projects, which is arranged on a sleeve or an extension of the male piece 36. A rotation of the helical compression spring 42 thus leads to an axial displacement of the Vaterstücks 36th

In the event that the profiles of the male piece 36 and the nut piece 32 are rotated against each other, a pressure on the male piece 36 is exerted via the spring 42 so that this penetrates upon rotation of the shaft 20 in the nut piece 32 as soon as the profiles are aligned , Blocking of the drive motor 40 or overloading is thus prevented. Incidentally, a voltage in the spring 42 is generated in the respective end positions of the male piece 28 and the pin 46, which supports a start of the drive motor 40 in the opposite direction, so that only a small initial friction must be overcome and the drive motor 40 to start only a small torque needed. Conversely, when reaching an end position of the drive motor 40 is braked by the tension in the spring 42.

The male piece 38 is not directly driven by the drive motor 40, like the male piece 36, but indirectly via the male piece 36. Movement in a coupling direction in the drawing to the left is effected via a helical compression spring 48 interposed between the male piece 36 and the male piece 38 is. Also, this helical compression spring 48 makes it possible to initially build only a pressure on the Vaterstück 38 in non-alignment of the profiles of the Vaterstücks 38 and the nut piece 30 without overloading or obstructing the mobility of the Vaterstücks 36 occurs. A clutch is brought about as soon as the profile of the male piece 38 is aligned with the profile of the nut piece 30 when the shaft 22 is rotated over the handle 26 of the actuating knob.

In the reverse direction, the male piece 38 is moved by a dog rod in the disengaging in the drawing to the right. This Mitnehmergestänge consists of a provided with a head 52 pin 50, arranged longitudinally adjustable in the first male piece 36 and can be locked in a parking position. With his shaft penetrates the pin 50 slidably the father piece 38 and forms with its head 52 a stop for the left in the drawing face of the father piece 38. If the male piece 36 is disengaged while shifted to the right in the drawing, the head 52 takes after one Leerweg then with the Vaterstück 38 and disconnects it also.

By axially displacing the first male piece 36 relative to the pin 50, the maximum distance between the male pieces 36 and 38 can be adjusted, with the result that the male piece 36 is always coupled and further displacement of the male piece 36 in the left direction in the drawing Fatherpiece 38 also engages. In the corresponding setting position, the pin 50 and the male piece 36 can be locked by means of a radial screw 70. The screw 70 is accessible via a slot 72 in the housing 16 from the outside and adjustable.

In Fig. 3, the state is shown, in which the male piece 36 is simultaneously positioned in the nut piece 28 and 32, while the male piece 38 is positioned only in the nut piece 34. In this case, the shaft 20 of the right operating knob 12 is constantly engaged, so that a rotation of the handle 24 also leads to a rotation of the Schließbarts 18. On the other hand, the shaft 22 of the left operating knob 14 is not engaged and turning over the handle 26 performs only one free travel, without the cam 18 is actuated.

In the shaft 22 cylindrical body 68 are arranged transversely to the shaft axis, which consist of a hardened material. If an attempt is made to drill the lock cylinder assembly from the unsafe side, the cylindrical bodies deflect the drill sideways.

In the illustrated position, the male piece 36 is aligned in its Drehausrichtung with the Drehausrichtung of the nut piece 32 and can penetrate by axial displacement in the nut piece 32. Due to the cross-sectional profile of father piece 36 and nut piece 32 achieved a rotational mold closure, so rotated when turning the father piece 36 so the nut piece 32.

Moreover, the left side in the drawing according to FIGS. 1 to 3 is suitable for an unsafe area, from which no active electrical or electronic components can be reached, which can be manipulated. Rather, the safety-related components are located on the right side of the drawing within the handle 24 of the actuating knob 12. In addition to the already mentioned drive motor 40, a power source 56 and a control circuit 58 are arranged there. The control circuit 58 takes over the control of the drive motor 40 on the basis of release commands or commands. Release commands or commands can be transmitted without contact from an external reading and evaluation device, which is not shown here.

Commands are "permanently open", "permanent". The command "Permanently open" leads to a coupling between the two actuating knobs 12, 14 and the lock bit 18. A case or a latch of the lock can be withdrawn at any time without proof of access authorization. The command "Dauerzu" leads to a decoupling between the two actuating knobs 12, 14 and the lock bit 18 and also ignores electronic access requests. If the commands "Permanently open", "Permanently" are canceled, an access request can be entered by an electronic authorization card via an external reading and evaluating device and granted authorization a release command to the control circuit 58. This then turns on the drive motor 40 during a short time interval in the take-up direction, whereupon the operating knobs 12 and 14 are coupled to the lock bit 18. Subsequently, the drive motor 40 is also turned on during a short time interval in Auskuppeldrehreichtung and disengages the operating knob 12 and 14 from the lock bit 18th

Preferably, the lock cylinder assembly comprises a housing 16 in a standard length of z. B. 70 mm. To adapt to locks that have a greater length a lock cylinder, the length of the housing 16 may be extended by one or more extension disks 74. These extension disks 74 can be attached both to the end face of the housing 16 facing the safe area and to the unsafe area. Thus, handles 24 and 26 can be adjusted flush to lever handles, the handles 24 and 26 by means of a clamping device on the shafts 20 and 22 are attached. The clamping device, at least in the unsafe area, may comprise a longitudinally carved sleeve 76 having a conical outer surface which is urged against the shaft 22 by a conical inner surface of a handle 26 by tensioning with a screw 78.

In the event that the power source 56 fails unexpectedly, an emergency power supply is provided. For this purpose, there is a contact 60 on the front side of the housing 16. From there, a cable passes through a bore 62 parallel to the axis of the lock cylinder 10 and from there to a bore 64 which extends radially and includes a spring with a sliding contact 66. A slip ring 68 in turn is connected via a cable to the power source 56. This solution is not a security flaw, since only the power source 56 can be recharged, but not the safety-related components are bridged.

The control circuit 58 may also include sensors for detecting states, an evaluation circuit and a transmission circuit. An internal sensor of the control circuit 58 itself monitors the state of charge of the power source 56, preferably batteries or rechargeable batteries. A separate sensor 80 monitors removal of the handle 24 and thereby access to the battery compartment and control circuit 58. This allows unauthorized manipulation of the lock cylinder assembly to be detected and transmitted externally.

Claims

Patent claims

1 . Lock cylinder arrangement, consisting of a housing with a cam, at least a first actuating knob and an electromechanical coupling between the at least one first actuating knob and the

Locking bit, wherein the electromechanical coupling each having at least a parent and a male piece, of which the at least one male piece by axial displacement rotationally positive manner with the at least one nut piece is engageable, characterized in that the at least one father piece with a controllable drive motor is coupled via a spring-elastic transmission, which comprises a rotatably connected to a drive shaft of the drive motor helical compression spring and engaging in a space between two spring courses of the helical compression spring pin on an extension of the axially displaceable first father piece.

2. Lock cylinder arrangement according to claim 1, characterized in that the nut pieces of the electromechanical clutch are arranged in the cam and in shafts of the actuating knob and engages a first fatherpiece in the engaged state in both nut pieces of cam and the shaft of a first actuating knob, while in the disengaged state engages only in one of the two nut pieces of cam and the shaft of the first operating knob.

3. Lock cylinder assembly according to claim 1 or 2, characterized in that a second male piece is axially coupled to the first male piece, wherein the second male piece engages in its engaged state in both nut pieces of cam and the shaft of a second actuating knob while in its disengaged Condition only in one of the two nut pieces of cam and the shaft of the second operating knob engages and the second father piece in the coupling direction with the first father piece via a helical compression spring and in Auskuppelrichtung is coupled via a connected to the first father piece driver rod.

4. lock cylinder assembly according to claim 3, characterized in that the Mitnehmergestänge has a head equipped with a pin which is longitudinally adjustable in the first father and lockable in a parking position, slidably engages with his shaft, the second father piece and with his head a stop for driving the second Vaterstücks in Auskuppelrichtung forms.

5. lock cylinder assembly according to claim 4, characterized in that the pin in the first father piece by means of a radially disposed screw can be locked, wherein the screw is accessible and operable by a longitudinal slot in the housing.

6. Lock cylinder arrangement according to one of claims 1 to 5, characterized in that the drive motor and a control circuit and a power source in the first operating knob are arranged in a safe area and commands to the control circuit by a spatially remote from the operating knob in the unsafe area reading and evaluating device be transmitted without contact.

7. lock cylinder assembly according to one of claims 1 to 6, characterized in that arranged on at least one end face of the housing at least one extension disc, and that handles of the actuating knob are arranged axially adjustable longitudinally on free ends of the shafts and locked in a parking position by a clamping device.

8. Lock cylinder arrangement according to one of claims 1 to 7, characterized in that an emergency charging contact is arranged on the pointing to an unsafe area side of the housing and a charging cable through an axially parallel hole in the housing and in their presence in the at least one extension. pulley and a radial bore is guided to a sliding contact, and the sliding contact is pressed onto a slip ring which is connected via a cable to the power source.

9. Locking cylinder arrangement According to one of claims 1 to 8, characterized in that the control circuit comprises an evaluation circuit and a receiver, by means of which external commands "Permanently open", "Dauerzu" in each case in a position of the first and second Vaterstücks by driving the drive motor can be implemented ,

10. Lock cylinder arrangement according to claim 9, characterized in that the control circuit comprises a voltage sensor, by means of which, when a voltage value of the energy source falls below the command "Permanently open" can be implemented.

1 1. Lock cylinder arrangement according to one of claims 6 to 10, characterized in that the control circuit comprises a transmitter, by means of the states of the lock cylinder arrangement "battery state", "state of Temperkontakts" are externally transferable.