• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a safety device for locking devices, in particular lock cylinder with a rotary handle (1), in particular rotary knob, and connected to the rotary handle by means of a rotationally fixed connection rotatable element (3), the handle (1) and the rotatable element (3) in the idle state in common freely rotatable and in the opening or closing state with a locking member (7) of the lock cylinder coupled. Between the rotary handle (1) and the rotatable element (3), a clutch can be arranged, which interrupts the rotationally fixed connection between the rotary handle (1) and the rotatable element (3) when a limit speed of the rotary handle (1) is exceeded.
    公开号:AT514539A1
    申请号:T5612013
    申请日:2013-07-04
    公开日:2015-01-15
    发明作者:Reinhard J Ing Enne
    申请人:Evva Sicherheitstechnologie；
    IPC主号:
    专利说明:

    The invention relates to a safety device for locking devices, in particular lock cylinder with a rotary handle, in particular rotary knob, and a rotatable member connected to the rotary handle by means of a rotationally fixed connection, wherein the rotary handle and the rotatable member in the free state together freely rotatable and in the opening or closing state with a locking member of the lock cylinder are detachable.
    The invention further relates to a device equipped with such a safety device
    Locking device, in particular lock cylinder, comprising a locking member, a rotary handle, in particular rotary knob, and a rotatable member which is connected to the rotary handle by means of a rotationally fixed connection, wherein the rotary handle and the rotary element in the idle state together freely rotatable and in the opening or closing state with the lock. can be coupled.
    Electronic locking systems consist of an electronic identification medium in the form of memory cards or the like, which have stored an electronic key, and an access control device, such as an electronic key. After a reading of the electronic key, the rotational movement of a handle, e.g. a knob or handle rotatably coupled via a corresponding coupling with a further rotatably mounted part, which can consequently actuate a bolt. In this connection, electronic security systems have become known, which are designed as double knob cylinders, on one side of the door to be opened elements of recognition logic, and in particular antennas or the like, are arranged, whereas the coupling of the rotational movement of this outer rotatable part after detection of the correct key via electronics usually by electrical means by coupling a coupling element. In such devices without such a coupling, the external handle is freely rotatable. This freely rotatable handle is connected by a shaft to the opposite side of the door or window to which the coupling with the actuator of the lock is made. The shaft is thereby passed through the lock cylinder with relatively little play, and the free rotation must be ensured at the same time relatively little play without the risk of jamming and without the risk of unintentional coupling. A possible embodiment can be found, for example, in DE 19851308 A1, in which the lock cylinder is provided on both sides with rotary knobs, of which the door-inside rotary knob has access control electronics. Depending on the identification of an identification medium, an access authorization is determined, wherein a clutch is actuated electromagnetically such that a locking bit can be moved from the outside-side rotary knob.
    Due to the small tolerances in the manufacture of such safety devices, however, it has now been found that possible abusive manipulation is created by connecting to the freely rotatable handle a corresponding drive unit, for example an electric motor or spring mechanism motor, which sets the handle in rapid rotation. With such rapid rotation, a corresponding frictional heat is generated inside the lock, which, with the expansion of the conventionally free-spinning shaft, can result in rubbing or inadvertent coupling of an outer shaft to an inner shaft, thus, in spite of lack of electronic release of the clutch, by mechanical expansion or thermal expansion Rubbing achieved clutch between the usual way freely rotatable handle and the Sperrbartentsteht, whereby the lock can be actuated. However, such a malfunction or sabotage operation presupposes that the freely rotatable handle can be brought to a corresponding minimum speed over a minimum time, which can lead to a thermal expansion or for triturating.
    In order to exclude such sabotage or misoperation and at the same time to ensure that the freely rotatable handle remains freely rotatable only at a relatively low rotational speed and counteracts rubbing or jamming in other cases, a safety device of the type mentioned in WO 2007/095652 A1 has already been proposed the centrifugal weight is coupled to the handle at least a radially guided displaceable centrifugal weight, which engages from a defined number of revolutions of the handle in a time unit with a stationary part of the lock and blocks the further rotation. The centrifugal lock ensures that if the speed of the freely rotatable handle is too high, a blockage occurs immediately.
    In a safety device of the type described in WO 2007/095652 A1, however, correct operation can not be guaranteed with certainty, in particular in those cases in which a particularly high torque is applied to the handle. In particular, there is the danger that the elements which can be displaced due to the centrifugal force are mechanically overloaded and subsequently deformed or destroyed. Another disadvantage of the described embodiment is that the deadweight in the blocking state is supported on the lock cylinder housing in order to block the further rotational movement of the handle. However, this can lead to excessive deformations of the lock cylinder housing in the event of a large force. In both cases, it is problematic that the deformation or destruction of the flyweight or the housing in the normal operation of the lock cylinder is not recognizable to the user from the outside, since the locking operation is not impaired in the case of non-abuse operation.
    The invention therefore aims to improve a safety device of the kind mentioned in the introduction, so that the operability is ensured even at very high rotational speeds and at high torques applied to the rotary handle. The safety device should also be able to fulfill its function after repeated sabotage attempts and / or a sabotage attempt should be recognizable to the user.
    To achieve this object, the invention provides in a safety device of the type mentioned above, that a coupling which can be arranged between the rotary handle and the rotatable element is provided which interrupts the rotational connection between the rotary handle and the rotary element when a limiting speed of the handle is exceeded. Thus, in a sabotage attempt, in contrast to the prior art, the rotational movement of the rotary handle is not blocked, but the rotary handle is decoupled from a rotatable part located in the locking device, in particular the lock cylinder. In the decoupled state of the rotary handle can no longer occur in the interior of the lock cylinder states in which a rotatably connected to the locking member member is unintentionally entrained because the corresponding components are no longer in rotational motion. Furthermore, the functionality of the safety device is safe regardless of the torque occurring, since the torque in the decoupled state of the rotary handle is no longer transmitted critical components. Deformation or destruction of critical components located in the latch is therefore excluded.
    In the context of the invention, it is provided that the rotary handle is non-rotatably connected in the normal state with a rotatable element rotating with the rotary handle. This includes not only embodiments in which the rotary handle is directly connected to the rotatable element in a rotationally fixed manner, but also embodiments in which the rotary handle is rotatably connected with the interposition of at least one further component with the rotatable element.
    A non-rotatable connection in the context of the invention means a connection in which the handle and the rotatable element rotate in the normal state at the same speed or are rotationally coupled in a fixed speed ratio. The rotary handle and the rotatable member are arranged coaxially in this rule. However, the invention also includes embodiments in which the rotary handle and the rotary element do not rotate about the same rotation axis.
    The coupling arranged between the rotary handle and the rotatable element can basically be designed as desired. It is essential that the coupling is capable of decoupling the rotary handle from the rotatable element when a limiting speed is exceeded, so that there is no longer any rotational connection between these two components. The coupling may be designed to be movable from the rotatable part of the rotary actuator after the rotary coupling has been decoupled
    Decoupling state back to the on-line state, either automatically or after a corresponding user operation. Alternatively, the coupling may also be designed as a one-time clutch, in that the rotationally fixed connection between the rotary handle and the rotatable element is not temporarily interrupted, but permanently interrupted or even the corresponding connecting means is destroyed. In this way, a user can subsequently detect the attempted sabotage. Furthermore, this prevents repeated sabotage attempts.
    A preferred embodiment provides that the coupling is designed as a centrifugal force-controlled coupling. In particular, the coupling has at least one cam which is displaceable from a radially inner position in the radial direction, preferably against the force of a spring element, in a radially outer position. In this case, in the inner position, the driver preferably acts positively with a radially inner coupling part of the rotary handle or with a part fixed to the rotary handle and preferably with a radially outer coupling part of the rotary element. In the radially outer position, the preferably positive connection between the driver and the rotary handle is released, so that the rotary handle is decoupled from the rotatable element.
    Alternatively, it may be provided that the coupling is protected by electromagnetic induction, e.g. by an electric generator driven by the rotary handle or by eddy currents induced by the rotary handle. This makes it possible in a simple manner controlled by the rotational speed of the rotary handle actuation of the clutch.
    The invention can be used particularly preferably in an embodiment of the locking device in which the rotary handle is non-rotatably connected to a locking device passing through the coupling shaft, which is coupled to an actuating shaft which is non-rotatably connected to the locking member of the locking device, wherein the actuating shaft is formed as a hollow shaft which penetrates from the coupling shaft is.
    With such a configuration of the locking device, the coupling shaft preferably forms the rotatable member. The clutch is then between the rotary handle and the clutch shaft.
    Alternatively, it may be provided that a first portion of the coupling shaft is non-rotatably connected to the rotary handle and a second portion of the coupling shaft forms the rotatable member, wherein the coupling is disposed between the first portion and the second portion.
    In electronic access control devices, electronic components such as e.g. a reading unit for reading out the electronic key from the identification medium, disposed inside the rotary handle. Of these electronic components usually leads at least one cable into the interior of the lock cylinder, z. to drive an actuator arranged there for coupling the locking member. Furthermore, cables may also pass through the lock cylinder to electrically connect electrical components of an external handle with those of an internal handle. Preferably, at least one cable passed through the coupling is non-rotatably connected to the handle. This causes the said cable to rotate in the normal state of the locking device with the rotary handle and with the rotatable element. In the sabotage case, the cable rotates after the cable Decoupling the rotary handle the rotary handle on, however, the rotatable element not, so that it leads to a distortion of the
    Cable, which usually leads to the destruction of the cable. In this way, it is ensured that the locking device is no longer functional after a sabotage, so that the sabotage case can easily be subsequently detected.
    With regard to the speeds occurring in normal operation, a preferred embodiment provides that the limit speed is at least 1,000, preferably at least 5,000, particularly preferably at least 10,000, r / min.
    The invention will be explained in more detail below with reference to an embodiment shown diagrammatically in the drawing. 1 shows a schematic overall view of a lock cylinder according to the invention in a partially disassembled state, and FIG. 2 shows a detailed view of the safety device according to the invention.
    In Fig. 1, 1 denotes a knob, which is freely rotatably connected via a hollow shaft 2 and a coupling shaft 3 miteiner housed in another knob 4 electromechanical clutch disc. The coupling disc itself may be formed in any desired manner and, for example, coupled magnetically or mechanically with a corresponding component, for example the knob 4. The actuating shaft is denoted by 5 and is penetrated by a sliding sleeve 6. Further, a locking lug 7 is provided for the operation of the lock bolt, said locking lug 7 is held in axial direction adjusted by corresponding snap rings 8 and rotatably connected to the actuating shaft 5, which itself rotatably with the inside knob 4 or after the clutch rotatably connected to the clutch shaft 3 is connected.
    Without a corresponding coupling of the actuating shaft 5 with the knob 1, the knob 1 can be freely rotated together with the hollow shaft 2 mounted in the housing 9 and the associated coupling shaft 3 about the axis of rotation 10.
    In the sectional view according to FIG. 2, the safety device according to the invention can be seen. The coupling shaft 3 consists of two shaft sections 3 'and 3' '. The shaft portion 3 'is non-rotatably connected to the knob 1 and has a smaller diameter formed extension, which is encompassed by an annular extension of the shaft portion 3' '. The shaft portion 3 'has in its reduced diameter extension a radial recess 13 in which a radially movable flyweight 11 is received. The flyweight 11 has a radial dimension such that in the radially inner layer shown in FIG. 2 it dips into a radial recess 12 of the shaft section 3 "and thereby produces a positive rotational connection between the two shaft sections 3 'and 3". The centrifugal weight 11 is pressed inwards by means of a spring element, not shown in detail, in order to operate in normal operation, i. both usually occurring rotational speeds to remain in the radially inner layer. When the knob 1 is now driven to rotate at high rotational speed using suitable mostly motorized tools, the flyweight 11 will have such a traction that it will be that of that shown in FIG
    Spring element exerted spring force overcomes and is shifted to the outside. Thereby, the flyweight 11 emerges from the recess 13, thereby separating the rotationally fixed connection between the shaft portions 3 'and 3 ". Between the shaft portions 3' and 3", therefore, a centrifugal force controlled clutch is realized.
    权利要求:
    Claims (11)
    [1]
    Claims 1. A safety device for locking devices, in particular lock cylinder with a rotary handle, in particular rotary knob, and a rotatable member connected to the Drehhandhabemittels a rotationally fixed connection, wherein the handle and the rotatable member in the idle state together freely rotatable and in the opening or closing state with a locking member of the lock cylinder can be coupled characterized by a clutch which can be arranged between the rotary handle (1) and the rotatable element (3) and which interrupts the rotationally fixed connection between the rotary handle (1) and the rotatable element (3) when a limit rotational speed of the rotary handle (1) is exceeded.
    [2]
    2. Safety device according to claim 1, characterized in that the coupling is designed as a centrifugally controlled clutch.
    [3]
    A safety device according to claim 1 or 2, characterized in that the coupling comprises at least one driver (11) displaceable from a radially inner position in the radial direction, preferably against the force of a spring element, to a radially outer position.
    [4]
    Safety device according to claim 1, characterized in that the coupling is produced by electromagnetic induction, e.g. by an electric generator driven by the rotary handle (1) or by eddy currents induced by the rotary handle (1).
    [5]
    A safety device according to any one of claims 1 to 4, characterized in that the rotary handle (1) is non-rotatably connected to a coupling shaft (3) passing through the locking device, which is connectable to an actuating shaft (5) non-rotatably connected to the locking member (7) of the locking device wherein the actuating shaft (5) is formed as a hollow shaft, which is penetrated by the coupling shaft (3).
    [6]
    6. Safety device according to claim 5, characterized in that the coupling shaft (3) forms the drehbewegliche element.
    [7]
    A safety device according to claim 5, characterized in that a first portion (3 ') of the coupling shaft (3) is non-rotatably connected to the turning handle (1) and a second portion (3' ') of the coupling shaft (3) forms the rotatable member, the coupling between the first portion (3 ') and the second portion (3' ') is arranged.
    [8]
    8. Safety device according to one of claims 1 to 7, characterized in that the coupling comprises a cable duct.
    [9]
    9. Safety device according to claim 8, characterized in that at least one cable carried out by the coupling is non-rotatably connected to the handle (1).
    [10]
    10. Safety device according to one of claims 1 to 9, characterized in that the limit speed is at least 1,000, preferably at least 5,000, more preferably at least 10,000 U / min.
    [11]
    11. A locking device, in particular a locking cylinder, comprising a locking member, a rotary handle, in particular a rotary knob, and a rotary member connected to the rotary handle by means of a non-rotatable connection, wherein the handle and the rotary member are freely rotatable together and can be coupled to the locking member in the open or closed state characterized by a safety device according to one of claims 1 to 10.
    类似技术:
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    AT380718B|1986-06-25|Lock
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    同族专利:
    公开号 | 公开日
    EP2821568B1|2017-08-09|
    EP2821568A3|2015-03-25|
    ES2646939T3|2017-12-18|
    EP2821568A2|2015-01-07|
    AT514539B1|2015-05-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3347896A1|1982-05-13|1985-07-04|Klaus Dr. 8022 Grünwald Meister|Locking device having an uncouplable inner actuating part|
    US1516152A|1923-04-23|1924-11-18|Joseph R Dumont|Doorknob|
    DE19851308C2|1997-11-07|2002-11-07|Simons & Voss Identifikationss|lock cylinder|
    DE19834692A1|1998-07-31|2000-02-03|Wilke Heinrich Hewi Gmbh|Closure system for door with internal rotary knob attached to bolt actuating closure element has coupling unit that turns freely wrt. inner knob in free position, rotates with it in drive position|
    AT501753B1|2006-02-22|2006-11-15|Evva Werke|SAFETY DEVICE FOR LOCKS|
    DE202008013172U1|2008-10-06|2010-02-25|Burg-Wächter Kg|Lock, in particular mortise lock for a door|
    DE102009016164A1|2009-04-03|2010-10-14|Schaeffler Technologies Gmbh & Co. Kg|Coupling for use in automobile industry to connect belt pulley of crankshaft with rotor hub of generator in internal combustion engine, has blocking element preventing locking of locking element in recess during exceeding of hub limit speed|
    CH701790A2|2009-08-31|2011-03-15|Kaba Ag|Locking device.|CN107386797B|2017-08-13|2019-10-08|浙江品瑶科技股份有限公司|A kind of lock assembly based on clutch|
    SE2050065A1|2020-01-23|2021-07-24|Assa Abloy Ab|Actuating device and lock device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA561/2013A|AT514539B1|2013-07-04|2013-07-04|Safety device for locking devices|ATA561/2013A| AT514539B1|2013-07-04|2013-07-04|Safety device for locking devices|
    ES14450032.9T| ES2646939T3|2013-07-04|2014-06-10|Interlocking device, especially a closing bulb|
    EP14450032.9A| EP2821568B1|2013-07-04|2014-06-10|Locking device, particularly lock cylinder|
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