WO2014071916A2 - Coupling for a lock cylinder - Google Patents

Coupling for a lock cylinder Download PDF

Info

Publication number
WO2014071916A2
WO2014071916A2 PCT/DE2013/000668 DE2013000668W WO2014071916A2 WO 2014071916 A2 WO2014071916 A2 WO 2014071916A2 DE 2013000668 W DE2013000668 W DE 2013000668W WO 2014071916 A2 WO2014071916 A2 WO 2014071916A2
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
key
coupling element
cam
return pin
Prior art date
Application number
PCT/DE2013/000668
Other languages
German (de)
French (fr)
Other versions
WO2014071916A8 (en
WO2014071916A3 (en
Inventor
Ulrich Fischer
Philip Mihailovic
Toralf Masche
Jürgen Krühn
Jens Gürtler
Katrin SCHRAMM
Original Assignee
Assa Abloy Sicherheitstechnik Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE102012022643.8A priority Critical patent/DE102012022643B4/en
Priority to DE102012022643.8 priority
Application filed by Assa Abloy Sicherheitstechnik Gmbh filed Critical Assa Abloy Sicherheitstechnik Gmbh
Publication of WO2014071916A2 publication Critical patent/WO2014071916A2/en
Publication of WO2014071916A3 publication Critical patent/WO2014071916A3/en
Publication of WO2014071916A8 publication Critical patent/WO2014071916A8/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00Accessories in connection with locks
    • E05B17/04Devices for coupling the turning cylinder of a single or a double cylinder lock with the bolt operating member
    • E05B17/044Clutches, disengageable couplings
    • E05B17/045Clutches, disengageable couplings for keeping the rotor disconnected from the bolt actuating member, when being turned, e.g. forcefully, without the proper key

Abstract

The invention relates to a coupling for a lock cylinder. The coupling is designed as a multi-part coupling and consists of an integral coupling element, which produces the connection to the locking bit or coupling pressure piece and which can be moved longitudinally in the cylinder core, and of a restoring pin which is mounted in the coupling element. A guide element is provided in or on the coupling element, said guide element being for one end of the restoring pin that is provided with a follower or cam, the other end of said pin having a nose that is guided through the coupling element and can engage in a corresponding recess of the key.

Description

 Clutch for a lock cylinder

The invention relates to a coupling for a lock cylinder, in whose

Lock cylinder housing is rotatably arranged a cylinder core, which is coupled by means of an inserted into its key channel key via the clutch with the cam.

In general, clutches of this type are used to transfer in lock cylinders, the rotational movement of the key on the cylinder core on the cam and thus to operate the lock in the respective functions.

The current state of the art has an axially movable, when actuated by insertion of the key in the cam bit engaging, spring-returned and thus not forcibly returned clutch. Since the locking mechanism is locked or released via the arrangement of the pins, it is not necessary to forcibly axially move the coupling per se. It only engages the key in the corresponding counterpart on the clutch to operate them. Functions that may require disengagement, such as hazard functions, are special functions that only come into effect in the event of an event.

The mechanical realization of the danger function is currently carried out via a mechanical arrangement in which the return of the clutch is effected by spring forces, which does not allow conclusions about the actual position of the clutch. Thus, in the event of a mechanical defect on the return mechanism only the spring forces are available, which in turn does not allow conclusions about the current position of the clutch.

For reasons of design, it can cause malfunctions (for example, jamming) in the case of non-positively actuated clutches or mechanical locks loaded externally

Return mechanism come. As a result, no secure decoupling between core and cam be guaranteed, ie after removal of the key, the coupling is not necessarily in a defined state.

The object of the invention is to provide a coupling which is safe after removal of the key in a decoupled position.

This object is achieved according to the invention with a clutch for a lock cylinder, in the lock cylinder housing rotatably a cylinder core is arranged, which is coupled by means of an inserted into its key channel key via the clutch with the cam or a coupling pressure piece,

characterized,

that the coupling is formed in several parts and from an actual, the connection to the cam or coupling pressure producing, in the cylinder core

longitudinally displaceable coupling element and a return pin mounted in the coupling element, wherein in the coupling element or a guide is provided for a provided with a driver or cam end of the return pin, the other end has a nose which is guided through the coupling element and engageable with a corresponding recess of the key such that the nose of the return pin upon insertion of the key in the

Recess engages and the further advancement of the key pushes the coupling element to the cam or clutch pressure piece back and when retracting the

Key the coupling element entrains in its initial position, wherein the nose moves in the starting position through the guide out of the recess on the key and the key is released.

The solution is based on the idea of creating a clutch which, actuated by the key, influences subsequent functions and, when the key is removed, is forcibly returned to the rest position / starting position, and is removed from its effective range. As a result, subsequent components can be influenced, which the

Control safety mechanism of the cylinder. By this arrangement, it is possible to realize the danger function in which the cam is decoupled from the blocked core.

The coupling of the invention hooks when inserting the key on the geometry of the return pin with the key form-fitting. The entanglement causes the clutch to be pulled out of its effective range when the key is removed. This is necessary for. As in lock cylinders for escape route doors, in which a free-running cam is required. In these locking cylinders must in Gefahrbzw. Actuation case of the cam to be decoupled from the blocked core.

Furthermore, this function can be used to forcibly reset mechanical or electromechanical components in the cylinder core. Thus, the

Lock cylinder are repeatedly reset to a defined state and has the same starting conditions with each new closing.

According to one embodiment of the coupling is provided that the coupling element has a resting on this clutch cover against which the coupling element is longitudinally displaceable and that the guide for the driver or cam of the

Return pin is formed in the clutch cover.

Here, the return pin is preferably mounted so pivotally in the clutch cover or in the coupling element, that it can be brought in the longitudinal displacement of the coupling element by the guide with its nose into engagement with the recess in the key.

According to a further embodiment, this is achieved in that the return pin is formed three arms, wherein on one arm of the driver or cam, on the other arm, the nose and on a third arm, a further cam is provided in a recess on the coupling element, a pivot bearing forming for the return pen, is stored.

Particularly advantageous because in particular space-saving, the coupling element of the return pin and the clutch cover are arranged in the cylinder core.

The coupling according to the invention will be explained in more detail with reference to the drawings, wherein the

Figures 1 and 2 show schematically only the parts of the coupling of interest here, in the

Figure 1 in the coupling position and Figure 2, the position just before removing the key.

During insertion of the key 4, which is shown in this embodiment as a flat key, come into the lock cylinder, integrally formed on the key 4 and the coupling 1 contact surfaces, so the nose 6 on the return pin 3 and the recess 5 in the key 4 with each other engaged. Thus, the clutch 1 is displaced by the key 4 in the longitudinal direction of the cam, not shown here, and may engage with the actual coupling pressure piece, or other subsequent components to transmit a rotational movement of the key with the cylinder core on the cam.

By the movement of the key and the resulting movement of the clutch 1, the return pin 3 is taken along a predetermined path, the zun; Example is given by the clutch cover 2.

Example 1: For the closing process, the clutch 1 is engaged and engages in the

 Lock in. Subsequently, by pulling the key 4, the clutch 1 disengaged by means of the locking lug 5 of the return pin 3 under duress and placed in the rest position Figure 2). If, for appropriate reasons, the danger function is required, this can be carried out due to the forcibly returned clutch 1.

Example 2: Due to an electrical defect or electronic manipulation, the electromotive drive of the locking mechanism may still be active although the key 4 has already been removed. To avoid manipulation is reset on the positively driven clutch 1, the complete mechanism and returned to the locked position. Manipulations are now possible despite possibly still active electronics, since the clutch 1 is still sitting in the rest position and keeps all other, recessed components in the locked position.

As special advantages of the solution according to the invention are highlighted: The required hazard function, in which the cam is disengaged, can be guaranteed with the aforementioned invention.

The mechanical coupling of the key withdrawal and the forced resetting of the released by the electronics components gives a high security gain, since a failure occurs in the electrical reset, a mechanical reset and the

Closing mechanism is returned to its original position. Thus fulfilled the

Locking mechanism still its function.

Claims

claims
1. Clutch for a lock cylinder, in the lock cylinder housing rotatably a cylinder core is arranged, which introduced by means of a key in his channel
Key can be coupled via the coupling with the cam or a coupling pressure piece,
characterized,
that the coupling is formed in several parts and from an actual, the connection to the cam or coupling pressure producing, in the cylinder core
longitudinally displaceable coupling element (1), as well as a return pin (3) mounted in the coupling element (1), wherein a guide (7) is provided in or on the coupling element (1), for which one, provided with a driver or cam (10), End of the Rückführstiftei: (3) whose other end has a nose (6) which is guided through the coupling element (1) and with a corresponding recess (5) of the key (4) is engageable such that the nose (6) of the return pin (3) during insertion of the key into the recess (5) engages and the further advancement of the key (4) pushes the coupling element (1) towards the cam or clutch pressure piece and upon retraction of the key, the coupling element (1) its starting position entrains, wherein the nose (6) moves in the starting position by the guide out of the recess (5) on the key out and the key is released.
2. Coupling according to claim 1,
characterized,
in that the coupling element (1) has a clutch cover (2) resting thereon against which the coupling element (1) is longitudinally displaceable and in that the guide (7) for the driver or cam (10) of the return pin (3) in the
Clutch cover (2) is formed.
3. Coupling according to one of the preceding claims,
characterized,
the return pin (3) is mounted pivotably in the clutch cover (2) or in the coupling element (1) in such a manner that it engages with the recess (6) in the longitudinal displacement of the coupling element (1) through the guide (7). 5) in the key (4) bring bar is.
4. Coupling according to one of the preceding claims,
characterized,
that the return pin (3) is formed with three arms, on one arm of the driver or cam (10), on the other arm, the nose (6) and on a third arm, a further cam (8) is provided, in a recess (9 ) is mounted on the coupling element forming a pivot bearing for the return pin (3).
5. Coupling according to one of the preceding claims,
characterized,
in that the coupling element (1), the return pin (3) and the clutch cover (2) are arranged in the cylinder core.
PCT/DE2013/000668 2012-11-12 2013-10-24 Coupling for a lock cylinder WO2014071916A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102012022643.8A DE102012022643B4 (en) 2012-11-12 2012-11-12 Clutch for a lock cylinder
DE102012022643.8 2012-11-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13817851.2A EP2917440B1 (en) 2012-11-12 2013-10-24 Coupling for a lock cylinder

Publications (3)

Publication Number Publication Date
WO2014071916A2 true WO2014071916A2 (en) 2014-05-15
WO2014071916A3 WO2014071916A3 (en) 2014-07-03
WO2014071916A8 WO2014071916A8 (en) 2014-08-28

Family

ID=49918335

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2013/000668 WO2014071916A2 (en) 2012-11-12 2013-10-24 Coupling for a lock cylinder

Country Status (3)

Country Link
EP (1) EP2917440B1 (en)
DE (1) DE102012022643B4 (en)
WO (1) WO2014071916A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9558377B2 (en) 2015-01-07 2017-01-31 WaveLynx Technologies Corporation Electronic access control systems including pass-through credential communication devices and methods for modifying electronic access control systems to include pass-through credential communication devices

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3026480C2 (en) * 1980-07-12 1986-03-27 Zeiss Ikon Ag, 7000 Stuttgart, De
DE3424603A1 (en) * 1984-06-18 1984-12-06 Sigismund Laskowski Locking bit with additional stop for a cylinder lock
FR2650021B1 (en) * 1989-07-24 1993-10-15 Vachette Safety lock with a releasable stator
FR2688820B1 (en) * 1992-03-18 1995-10-13 Antivols Simplex Sa A burglarproof lock pistons, especially for a motor vehicle.
DE4316223A1 (en) * 1992-05-18 1993-11-25 Ewald Witte Gmbh & Co Kg Car door lock cylinder with core in housing - has spring-loaded coupling position with coupling springs abutting locking member
FR2775716B1 (en) * 1998-03-05 2000-05-19 Vachette Sa Double barrel safety cylinder
DE10317448A1 (en) * 2003-04-16 2004-11-04 Aug. Winkhaus Gmbh & Co. Kg Coupling device for double lock cylinders, has pretensioned engaging spring provided between actuator and driver, and through which actuator moves driver towards coupling unit when key is inserted into closing channel
AT506590B1 (en) * 2008-10-09 2009-10-15 Kaba Gmbh Locking

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9558377B2 (en) 2015-01-07 2017-01-31 WaveLynx Technologies Corporation Electronic access control systems including pass-through credential communication devices and methods for modifying electronic access control systems to include pass-through credential communication devices

Also Published As

Publication number Publication date
DE102012022643A1 (en) 2014-05-15
WO2014071916A8 (en) 2014-08-28
WO2014071916A3 (en) 2014-07-03
DE102012022643B4 (en) 2015-06-25
EP2917440A2 (en) 2015-09-16
EP2917440B1 (en) 2016-11-30

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