EP2816180A2 - Dispositif de sécurité pour système de fermeture - Google Patents

Dispositif de sécurité pour système de fermeture Download PDF

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Publication number
EP2816180A2
EP2816180A2 EP14450031.1A EP14450031A EP2816180A2 EP 2816180 A2 EP2816180 A2 EP 2816180A2 EP 14450031 A EP14450031 A EP 14450031A EP 2816180 A2 EP2816180 A2 EP 2816180A2
Authority
EP
European Patent Office
Prior art keywords
handle
safety device
eddy current
locking
counter
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP14450031.1A
Other languages
German (de)
English (en)
Other versions
EP2816180B1 (fr
EP2816180A3 (fr
Inventor
Reinhard J. Enne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EVVA Sicherheitstechnologie GmbH
Original Assignee
EVVA Sicherheitstechnologie 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
Application filed by EVVA Sicherheitstechnologie GmbH filed Critical EVVA Sicherheitstechnologie GmbH
Publication of EP2816180A2 publication Critical patent/EP2816180A2/fr
Publication of EP2816180A3 publication Critical patent/EP2816180A3/fr
Application granted granted Critical
Publication of EP2816180B1 publication Critical patent/EP2816180B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
    • E05B9/04—Casings of cylinder locks
    • E05B9/041—Double cylinder locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B13/00—Devices preventing the key or the handle or both from being used
    • E05B13/002—Devices preventing the key or the handle or both from being used locking the handle
    • E05B13/004—Devices preventing the key or the handle or both from being used locking the handle by locking the spindle, follower, or the like
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/20—Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position
    • E05B17/2084—Means to prevent forced opening by attack, tampering or jimmying
    • E05B17/2092—Means responsive to tampering or attack providing additional locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0611—Cylinder locks with electromagnetic control
    • E05B47/0615—Cylinder locks with electromagnetic control operated by handles, e.g. by knobs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0676—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B2047/0014—Constructional features of actuators or power transmissions therefor
    • E05B2047/0018—Details of actuator transmissions
    • E05B2047/0026—Clutches, couplings or braking arrangements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • E05B37/0003—Permutation or combination locks; Puzzle locks preventing detection of the combination
    • E05B37/002—Speed sensors

Definitions

  • the invention relates to a safety device for locking devices with a handle which is freely rotatable in the idle state and in the open or closed state with a locking member of the locking device comprising a brake and possibly blocking device which brakes the rotation of the handle and possibly blocked.
  • Conventional locking devices such as lock cylinder can be operated by means of a key, wherein by turning a key in a lock, a corresponding locking lug is rotated, which moves a bolt in a closed position or retracts from a closed position to an open position.
  • a recognition logic and an electronic key in the form of cards or other identification media replace the key.
  • the rotational movement of a handle such as a knob or handle via a corresponding coupling with another rotatably mounted part rotatably coupled, which actuates the latch in the sequence.
  • electronic security systems which are designed as a double-knob cylinder, wherein on one side of the door to be opened elements of a detection logic, and in particular antennas or the like., Are arranged, whereas the coupling of the rotational movement of this outer rotatable part after detecting the correct key via an electronics usually made by electrical means by coupling a coupling element.
  • the external handle is freely rotatable without such a coupling.
  • This freely rotatable handle is connected via a shaft to the opposite side of the door or window to which the coupling with the actuator the locking device is made.
  • the shaft is thereby passed with relatively little play through the locking device, the free rotation at the same time relatively little play without the risk of jamming and without the risk of unintentional coupling must be guaranteed.
  • a possible training is for example the DE 19851308 A1 can be seen in which the lock cylinder is provided on both sides with Drehknäufen, of which the inside door knob has access control electronics.
  • an access authorization is determined, wherein a clutch is actuated electromagnetically in such a way that a locking bit can be moved from the outside door-side rotary knob.
  • the invention therefore aims to improve a safety device of the type mentioned in that the functionality is guaranteed even at very high rotational speeds and high torques that are applied to the handle.
  • the safety device should be largely independent of the outside of the castle acting forces work. Furthermore, the safety device should already ensure a certain braking effect even at lower speeds.
  • the invention provides in a safety device of the type mentioned that the braking device is designed as an eddy current brake.
  • the eddy current brake in this case comprises in particular an eddy current element and a magnetic element, one of which is a rotary element which is coupled to the rotational movement of the handle, and the other is a counter-element which is stationary or can be deflected against a restoring force.
  • the magnetic element can either have at least one permanent magnet or an electromagnet which is switched on when an abusive rotational characteristic of the handle is detected, whereby the eddy current brake applies a torque which opposes the torque of the handle.
  • the operation of the eddy current brake is such that due to the eddy currents in the eddy current element, an additional field energy is created. This field energy would be avoided if the eddy current element would co-rotate. But it is prevented by rigidly attached or deflected by a restoring element only limited.
  • the magnetic field linearly increases with the speed, the field energy quadratic, the force acting as their derivative linear again, so that the braking torque exerted by the eddy current brake is directly proportional to the rotational speed.
  • the inventive design of the brake as eddy current brake thus ensures that the required braking effect is provided safely even at high speeds.
  • the safety device according to the invention is both in embodiments of the locking device with a knob as a handle as well as in training with pushers used.
  • a braking effect is particularly advantageous because of the risk that an unrestrained depression with appropriate application of force leads to damage of the blocking element.
  • the invention is also not limited to locking devices in the form of lock cylinders. Also in fitting incorporated in a fitting, as e.g. are widely used in hotel room doors, the safety device according to the invention is useful. In many such systems, the pusher in the idle state is freely operable without effect. Only upon detection of a legitimate electronic key in the fitting, a coupling element is actuated, which couples the handle with the locking member so that an actuation of the handle retracts the locking member.
  • the eddy current element is now the rotary element or the counter element.
  • the eddy current element forms the counter element.
  • the eddy current element may be formed, for example, as a disc or ring of ferromagnetic material. If the eddy current element is designed as a counter element, a design as a ring is advantageous in order to allow the passage of waves or the like. For connecting the handle to the locking member and / or with an opposite handle or coupling.
  • the magnetic element regardless of whether it is used as a rotating element or as a counter element, at least one pair of magnetic pole a north pole and a south pole, wherein preferably the north and the south pole follow one another in the circumferential direction with respect to the axis of rotation.
  • the magnetic element comprises a plurality of, in particular at least 10, preferably at least 20 magnetic pole pairs. The higher the number of pole pairs, the greater the braking effect of the eddy current brake.
  • the counter element in particular the eddy current element
  • the housing of the closing device acts in the sense of a surface enlargement, so that the heat dissipation is improved to the environment.
  • the bearing of the counter element is preferably not by means of a ball bearing, but by the support of the annular surface directly on a corresponding annular surface of the housing.
  • the braking device according to the invention can be used in a simple manner in combination with a blocking device.
  • the counter-element is coupled to a blocking member which, depending on the deflection of the counter-element between a Release position, and a blocking position in which it blocks the further rotational movement of the handle, is displaced.
  • the blocking member is mounted or guided on a stationary part of the closing device and cooperates in the blocking position with a stop of the handle or a rotationally coupled to the handle part.
  • the displacement of the blocking member is thus preferably driven by the eddy current brake, wherein at least in the release position results in a mechanical decoupling of the blocking member of the rotating handle or the rotatably connected to the handle part.
  • the mechanical decoupling ensures that forces acting on the outside of the handle and the shaft possibly connected with the handle can not be transmitted to the part responsible for the application of the braking torque or the blocking, namely to the blocking member. Manipulation or damage due to violence is thus excluded.
  • the blocking member is thus structurally separated in particular in the release position of the handle or a rotatably connected to the handle element and in particular does not rotate with the handle. According to a preferred development, the blocking member cooperates only in the blocking position with the handle or a non-rotatably coupled to the handle part to brake or block the further rotational movement.
  • the mechanical decoupling of the rotational movement of the handle of the blocking member is preferably achieved in that a drive for displacing the blocking member between the release position and the blocking position is provided, which is displaceable by non-contact, in particular magnetic coupling with the rotational movement of the handle in motion.
  • the non-contact coupling is preferred from that of the rotational movement formed the handle driven eddy current brake, which then takes over the function of an eddy current coupling.
  • the eddy current brake is designed in the manner of an eddy current tachometer, in which the counter element of the eddy current brake is held by a return element and therefore can only be deflected to a limited extent.
  • the deflection is proportional to the rotational speed of the rotary element of the eddy current brake.
  • the return element may in this case preferably be designed as a spring element.
  • any other element suitable for receiving a torque or a force may be used as the return element.
  • the repulsion of two identically polarized magnets could be used as resistance to the angular deflection.
  • the angular deflection of the counter element of the eddy current tachometer connected to the return element is preferably translated via a gear or a conversion unit into a displacement movement of the blocking member, so that the blocking member is displaced from the release position into the blocking position.
  • the training is in this case made such that the transmission or the conversion unit can move the blocking member regardless of the direction of rotation of the handle from the release position to the blocking position.
  • the transmission or the conversion element comprises, for example, a ramp formed on the counter element of the eddy current tachometer connected to the return element, which converts the angular deflection of the counter element into an axial and / or radial movement of the blocking element.
  • the blocking member may in this case be guided in the axial and / or radial direction and axially and / or radially with a rotatably connected to the handle Part of the locking device engage and thereby block the further rotational movement of the handle.
  • a preferred embodiment provides that the counter element of the eddy current brake is formed of ferromagnetic material.
  • the use of a ferromagnetic material can lead to an amplification of the eddy currents.
  • the safety device according to the invention is used in a closing device in which the handle is rotatably connected to a locking device passing through the coupling shaft, which is coupled via a coupling with an actuating shaft which is rotatably connected to the locking member of the locking device, wherein the actuating shaft as Hollow shaft is formed, which is penetrated by the coupling shaft.
  • FIG. 1 a schematic overall view of a locking device according to the invention in teilzerlegtem state with safety device
  • Fig. 2 an enlarged view of the safety device
  • Fig. 3 a diagram of the braking torque as a function of the speed.
  • Fig. 1 is denoted by 1 a knob, which is freely rotatably connected via a hollow shaft 2 and a coupling shaft 3 with a housed in another knob 4 electromechanical clutch disc.
  • the clutch disc itself may be formed in any desired manner and, for example, magnetically or mechanically coupled with a corresponding component, such as the knob 4.
  • the actuating shaft is denoted by 5 and is penetrated by a sliding sleeve 6.
  • a locking lug 7 is provided for the operation of the lock bolt, said locking lug 7 is held in the axial direction adjusted by corresponding snap rings 8 and rotatably connected to the actuating shaft 5, which in turn rotatably with the inside knob 4 or after the coupling rotatably connected to the clutch shaft 3 is connected.
  • the hollow shaft 2 and the coupling shaft 3 connected thereto can be freely rotated.
  • the coupling shaft extends through the sliding sleeve 6 and rotates inside the same.
  • the knob 1 and thus the coupling shaft 3 is acted upon at a high speed about the axis of rotation 10 and rotated at rotational speeds of 5,000 - 20,000 rev / min, it can cause thermal expansion and trituration, so that the sliding sleeve 6 suddenly rotated with the clutch shaft 3.
  • the actuating shaft 5 can be taken away from the sliding sleeve 6, which can lead to an undesired actuation of the locking lug 7.
  • a safety device is arranged in the housing 9 of the lock cylinder, which is coupled to the rotational movement of the coupling shaft 3 and brakes the further rotational movement from a defined rotational speed and possibly blocked.
  • the safety device comprises in the in Fig. 2 illustrated first embodiment designed as a disc permanent magnet element 11 which rotatably coupled to the clutch shaft 3 and preferably arranged coaxially thereto is.
  • the permanent magnet element 11 has at least a plurality of circumferentially successive pairs of magnetic poles 12 and cooperates with an eddy current element 13, which is annular and surrounds the disk-shaped permanent magnet element 11 circumferentially.
  • the permanent magnet element 11 and the eddy current element 13 together form an eddy current brake, wherein the eddy current element 13 is connected to a retaining element (not shown) formed as a spring, for example, which exerts a restoring moment on the eddy current element 13 as soon as it experiences an angular deflection starting from the rest position.
  • a retaining element (not shown) formed as a spring, for example, which exerts a restoring moment on the eddy current element 13 as soon as it experiences an angular deflection starting from the rest position.
  • the angular deflection of the eddy current element 13 is directly proportional to the rotational speed of the permanent magnet element 11.
  • the eddy current element 13 may also be arranged rigidly, so that the retaining element can be dispensed with.
  • the eddy current element 13 exerts a braking torque dependent on the rotational speed of the permanent magnet element 11 on the permanent magnet element 11 and thus also brakes the knob 1.
  • the eddy current element 13 is mounted in the housing 9 of the lock cylinder.
  • the eddy current element 13 has a substantially U-shaped cross section with lateral extensions 14 in order to achieve both a lateral and a radial guidance of the eddy current element 13 in the housing 9.
  • a blocking effect can be achieved in addition to the braking effect, which starts at a defined rotational speed.
  • the angular displacement of the eddy current element 13 is translated for this purpose via a suitable gear in a sliding movement of a blocking member, not shown, so that the blocking member is displaced from a release position to a blocking position.
  • the blocking member engages in a recess of the coupling shaft 3 or cooperates in another way with the coupling shaft 3 or a rotatably connected thereto component to exert a blocking effect on the coupling shaft 3 and the knob 1.
  • Fig. 3 is the course of the braking torque M BR as a function of the speed n shown. It can be seen that the braking torque due to the eddy current brake increases continuously with increasing speed. Upon reaching a speed 15, the blocking member reaches the blocking position and the further rotation of the knob is blocked.
  • the invention is not limited to specific embodiments of locking devices.
  • the safety device according to the invention can be used not only in cylinder locks, but for example in fittings, which have the function to couple the handle with the door latch operation or decouple.
  • the handle such as e.g. a pusher without effect
  • the safety device according to the invention is used and is intended to prevent a jerky actuation of the handle without access authorization to an actuation of the case.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
  • Breakers (AREA)
EP14450031.1A 2013-06-18 2014-06-05 Dispositif de sécurité pour système de fermeture Active EP2816180B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA487/2013A AT514596B1 (de) 2013-06-18 2013-06-18 Sicherheitseinrichtung für Schließeinrichtung

Publications (3)

Publication Number Publication Date
EP2816180A2 true EP2816180A2 (fr) 2014-12-24
EP2816180A3 EP2816180A3 (fr) 2015-09-23
EP2816180B1 EP2816180B1 (fr) 2019-07-03

Family

ID=51210391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14450031.1A Active EP2816180B1 (fr) 2013-06-18 2014-06-05 Dispositif de sécurité pour système de fermeture

Country Status (3)

Country Link
EP (1) EP2816180B1 (fr)
AT (1) AT514596B1 (fr)
ES (1) ES2748333T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018110203A1 (de) * 2018-04-27 2019-10-31 Hochschule Osnabrück Türdrückergarnitur zur Vermittlung von Information, welche bei einem Öffnungs- oder Schließvorgang einer zur Türdrückergarnitur gehörenden Tür übermittelt wird, an einen Benutzer
WO2021214036A1 (fr) * 2020-04-21 2021-10-28 Assa Abloy Ab Agencement de prévention de bossage destiné à un dispositif de verrouillage, dispositif de verrouillage et procédé

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851308A1 (de) 1997-11-07 1999-05-12 Terra Dom Hausbau Gmbh Schließzylinder
WO2007095652A1 (fr) 2006-02-22 2007-08-30 EVVA-WERK SPEZIALERZEUGUNG von Zylinder- und Sicherheitsschlössern Gesellschaft m.b.H. & Co. KG Dispositif de sécurité pour serrures

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387065B (de) * 1987-04-14 1988-11-25 Evva Werke Schloss mit wenigstens einem magnetrotor
CA2097992A1 (fr) * 1993-06-08 1994-12-09 Ilan Goldman Serrure a combinaisons munie d'un mecanisme empechant l'ouverture par un dispositif automatique
DE19601424A1 (de) * 1996-01-17 1997-07-24 Fliether Karl Gmbh & Co Antriebsvorrichtung für ein Schloß, einen Schließzylinder oder dergleichen
DE10230344B3 (de) * 2002-07-03 2004-01-22 Dom-Sicherheitstechnik Gmbh & Co. Kg Manipulationssichere Elektromagnetanordnung, elektronischer Schließzylinder und Verfahren zum Verhindern einer Manipulation einer Elektromagnetanordnung
DE102005040161A1 (de) * 2005-08-25 2007-03-01 Cestronics Gmbh Schließzylinder mit Fliehkraftbremse
AT512658B1 (de) * 2012-05-10 2013-10-15 Evva Sicherheitstechnologie Sicherheitseinrichtung für Schlösser

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19851308A1 (de) 1997-11-07 1999-05-12 Terra Dom Hausbau Gmbh Schließzylinder
WO2007095652A1 (fr) 2006-02-22 2007-08-30 EVVA-WERK SPEZIALERZEUGUNG von Zylinder- und Sicherheitsschlössern Gesellschaft m.b.H. & Co. KG Dispositif de sécurité pour serrures

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018110203A1 (de) * 2018-04-27 2019-10-31 Hochschule Osnabrück Türdrückergarnitur zur Vermittlung von Information, welche bei einem Öffnungs- oder Schließvorgang einer zur Türdrückergarnitur gehörenden Tür übermittelt wird, an einen Benutzer
DE102018110203B4 (de) * 2018-04-27 2020-02-20 Hochschule Osnabrück Türdrückergarnitur zur Vermittlung von Information, welche bei einem Öffnungs- oder Schließvorgang einer zur Türdrückergarnitur gehörenden Tür übermittelt wird, an einen Benutzer
WO2021214036A1 (fr) * 2020-04-21 2021-10-28 Assa Abloy Ab Agencement de prévention de bossage destiné à un dispositif de verrouillage, dispositif de verrouillage et procédé

Also Published As

Publication number Publication date
AT514596B1 (de) 2015-02-15
EP2816180B1 (fr) 2019-07-03
ES2748333T3 (es) 2020-03-16
EP2816180A3 (fr) 2015-09-23
AT514596A4 (de) 2015-02-15

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