EP2473690B1 - Dispositif de verrouillage - Google Patents

Dispositif de verrouillage Download PDF

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Publication number
EP2473690B1
EP2473690B1 EP10747396.9A EP10747396A EP2473690B1 EP 2473690 B1 EP2473690 B1 EP 2473690B1 EP 10747396 A EP10747396 A EP 10747396A EP 2473690 B1 EP2473690 B1 EP 2473690B1
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EP
European Patent Office
Prior art keywords
rotor
coupling
locking device
coupling element
drive
Prior art date
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Active
Application number
EP10747396.9A
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German (de)
English (en)
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EP2473690A1 (fr
Inventor
Marcel Kölliker
Franco Di Sario
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Kaba AG
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Kaba AG
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Classifications

    • 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
    • E05B47/0638—Cylinder locks with electromagnetic control by disconnecting the rotor
    • E05B47/0646—Cylinder locks with electromagnetic control by disconnecting the rotor radially
    • E05B47/0649—Cylinder locks with electromagnetic control by disconnecting the rotor radially with a rectilinearly moveable coupling element
    • 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
    • E05B2047/0031—Clutches, couplings or braking arrangements of the elastic type
    • 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
    • E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors

Definitions

  • the invention relates to an electronic locking device, in particular an electronic lock cylinder.
  • an electronic circuit receives a signal from a corresponding electronic key (an access medium, e.g., a transponder). The signal is evaluated by the electronic circuit, and depending on the result of the evaluation, the electromechanical coupling and / or locking means are activated in order to effect the release or blocking.
  • a corresponding electronic key an access medium, e.g., a transponder
  • the coupling and / or locking means can in the release state, a rotor which can be actuated by an actuating element or by a key, coupled with an output device, which in turn can actuate a bolt.
  • the release state may also be referred to as a "clutch state".
  • the locking device is designed as a so-called double-knob cylinder with an inside and an outside door knob as actuators, often the inside door knob is fixed to the output device coupled.
  • the coupling and / or locking means can block the rotor against a housing (a stator) even in the locked state.
  • the WO 2004/057137 shows as an example of many the principle of a locking device in which the coupling and / or locking means are arranged in the stator.
  • such solutions have a disadvantage.
  • at least parts of the locksmith electronics are located in one of the knobs or in both knobs, and therefore there must be electrical leads and thus sliding contacts or possibly wireless information transfer means between the rotary knob and non-co-rotating coupling and / or locking means ,
  • the locking device should be simple in construction, make no high demands on the control and be tamper-proof.
  • a locking device of the type described here has a rotatably mounted in a stator rotor.
  • the rotor is coupled by an electronically controlled drive with an output element and / or lockable against the stator.
  • the electronically controlled drive is arranged in the rotor and rotates with a rotational movement of the rotor with this.
  • the locking device in the rotor has a spring element which couples the electric drive with a coupling element for coupling the rotor to the output element or to blocking the rotor against the stator so that the coupling element in the intended operation of the drive inside the Rotor is moved by the spring element, wherein this movement would be blocked by a corresponding counter force against the spring force.
  • the rotor in the stator can be freely rotatable in the stator without effect on the closing state, or it can additionally be blocked against the stator.
  • the rotor can also be coupled to the output element or form the output element as an alternative to the clutch principle.
  • the coupling element is moved radially inside the rotor.
  • the coupling state engages a coupling projection of the coupling element, for example, on the outside in a corresponding coupling recess of the output element or in blocking embodiments in the blocking state in a blocking geometry of the stator or a surrounding housing.
  • the coupling element has mass portions on both sides of the axis of rotation of the rotor. Exactly defined this means that the coupling element extends through a plane which runs perpendicular to the radial direction of movement of the coupling element and which passes through the axis of rotation of the rotor. Shares of the coupling element on the side remote from the coupling projection side of the axis of rotation (relative to the decoupled state) serve as a balancing mass. For example, the center of gravity of the coupling element in the decoupled state can be approximately at the level indicated by the axis of rotation or even on the side remote from the coupling projection side of the axis of rotation. This has the advantage that upon rotation of the rotor at high speed, the coupling element can not be moved due to the centrifugal force in the coupling position.
  • Another preferred feature of coupling embodiments of the invention relates to the design of the coupling projection and the corresponding coupling recess.
  • the torque transmitting surface of the coupling projection at an angle to the radial direction. This ensures that a small spring force is sufficient to bring the coupling element from the coupling state back to the decoupled state.
  • said angle and the surface condition of the coupling projection and the coupling recess are preferably so matched to one another, that the structure is self-locking, ie that when applying a torque, the radial component of the static friction between coupling element and driven element is approximately equal to or greater compared to the radial component of the normal force, so that, for example, at a sufficiently large torque, a radial retraction of the Coupling element can be prevented by the spring force.
  • the angle between said surface and the radial direction between 3 ° and 10 °, preferably between 4 ° and 7 °.
  • the coupling geometry can be designed so that a limitation of the transmittable torque is achieved, ie an overload clutch.
  • the structure is not self-locking but is designed such that at a relative torque higher than a maximum value, the radial component of the normal force is sufficient to radially displace the coupling member against the spring force.
  • the angle between said surfaces may be greater than 7 °.
  • the coupling element can be guided by a bearing sleeve.
  • This can be designed in specific embodiments so that it is deformed in the event of overload and thereby allows deflection of the coupling element, for example.
  • By the self-locking effect after deformation of the bearing sleeve no longer exists. This targeted weakness allows the repair of the locking device after excessive use of force relatively simple and is inexpensive, without the safety of the locking device would be impaired.
  • the spring element on the drive side is displaceable by an endless spindle, which is rotated by the drive.
  • the coupling element side is correspondingly moved by the spring, if no resistance is given to such a movement, otherwise we biased the spring for such a coupling element-side movement.
  • endless spindle here a spindle is referred to, in which a guided by the spindle turns element does not encounter a stop of the spindle, i. the spindle is designed to expire at both ends.
  • the spring element may be a leg spring (or torsion spring), one leg of which can be guided by the endless spindle, while the other leg of the leg spring is connected to the coupling element.
  • leg spring or torsion spring
  • the endless spindle can have a globoide shape in order to compensate for the angle of rotation of the spring leg engaging in it, without the thread depth having to be selected excessively.
  • An advantage of the inventive method in combination with the use of a continuous spindle is that the coupling mechanism works well even if the state of the locking device is not known and / or not precisely defined. Nevertheless, in a (rotary) movement of the drive in the opening or closing direction of the drive is never exposed to an oversized load, and there is never the problem of excessive energy consumption. It may be provided, for example, that the drive performs a predetermined number of revolutions each time the opening or closing command is given by the control electronics. After completion of this predetermined number of revolutions, the closing device is in any case in a defined and known state, even if the initial state - for example, due to an interruption in the power supply before - was not known.
  • the coupling element may have a permanent magnet or a magnetic field sensor which cooperates with a magnetic field sensor or permanent magnet of a stationary element with respect to the rotor housing, for example a Hall sensor arranged on the electronics carrier (print) of the rotor.
  • a Hall sensor arranged on the electronics carrier (print) of the rotor.
  • Another possible sensor for detecting the condition is a suitably arranged mechanically actuated switch in the rotor.
  • the rotor in addition to the drive and the safety-related parts of the electronics.
  • the entire transmitter is preferably mounted in the rotor, behind the mechanical protection.
  • the possible division of electronic components between standardized components such as an RFID chip on the one hand and a security-relevant evaluation on the other hand is based on the teaching of the Swiss patent application 1177/09 dated 29.7.2009.
  • Another preferred feature relates to mechanical protection. It is known per se to provide a closing device with a drill protection. This is a plate or the like made of a very hard material, which makes it impossible for drills available drills to create an opening from the outside to the safety-related components - for example, the control of the drive. According to a preferred feature of embodiments of the closing device, the drilling protection now has a boron protection element, which is freely rotatably mounted in the rotor. On the one hand, this has the advantage that there is an additional difficulty for an attack with a rotating instrument, since the drill protection can easily rotate with the rotating instrument. On the other hand, the freely rotating drill protection is also favorable in terms of manufacturing technology.
  • the rotor may have a predetermined breaking point, which is outside the safe area, so preferably outside of the mechanical protection and yielding to a drag on the rotor or on the whole locking device and thus ensures that a misuse of the driver not by pulling, a kink attack or applying an oversized torque can reach the safety-related components.
  • the closing device may for example be designed as a lock cylinder, wherein the outer contour (iA the cross-sectional area perpendicular to the axis of rotation of the rotor) and possibly other elements such as a cam of the output element may correspond to a normalization.
  • the outer contour iA the cross-sectional area perpendicular to the axis of rotation of the rotor
  • possibly other elements such as a cam of the output element may correspond to a normalization.
  • at least one door knob can be provided;
  • the operation by means of a key is conceivable, in which case optional mechanical tumblers may be present.
  • the electronic components of the locking device are arranged in a door fitting and actuation takes place via a door handle. Further embodiments are conceivable.
  • the closing device 1 is a lock cylinder and has an outer door knob 2 with an integrated RFID receiver (not shown) and an inner door knob 3.
  • the outer door knob is non-rotatably coupled to a rotor 4, which is rotatably guided in a stator 5.
  • the inner door knob 3 is rotatably coupled via a spacer sleeve 7 to an output member.
  • the expansion of the spacer sleeve 7 depends on the thickness of the door, in which the lock cylinder is installed; depending on the distance sleeve can also be omitted.
  • the lock cylinder can also be designed as a half cylinder, in that no inner door knob is present. Also, other types of actuation may be provided than via a door knob, for example.
  • a further alternative to the illustrated embodiment is a dual cylinder, in which both sides a knob with RFID receiver and antenna - in the manner of the outer door knob 2 - and a battery is present and both outside and inside a complete coupling module is present, so that either the outer or inner door knob can be coupled to the output element.
  • the output element has an output sleeve 8 and a driver 9.
  • the latter is set up in a manner known per se for actuating a bolt or a pawl by means of a cam 9.1.
  • the output sleeve is adapted, depending on the state via a coupling element 15 rotatably coupled to the rotor 4, including the coupling element torque transmission surfaces 15.1. How to do that in FIG. 2
  • an electric drive is present, which has a motor 11 which is fixed by an - optional - motor holder 12 in the rotor and a gear - or optionally directly - an endless spindle 13 drives.
  • the gear consists here of the motor pinion 11.1 and a molded on the endless spindle 13 larger gear 13.1.
  • the endless spindle engages the one leg of a rotatably mounted (by a bearing pin 18 of the rotor housing) leg spring 14, while the other leg is coupled to the coupling element 15, whereby this upon rotation of the leg spring about the axis of the spring coils and guided here of the journal in a bearing sleeve 16 is radially displaceable.
  • coupling position - the coupling element is in the orientation according to FIG. 2 "top" - engages a coupling projection of the coupling element with the torque transmission surfaces in the corresponding coupling recess of the output sleeve 8 a.
  • the electric drive is controlled by a control electronics, which is arranged on an electronic carrier 17 (printed circuit board). This is connected via a flexprint-like connection 17.1 or via a flat cable to a socket 22 through which arranged on the electronics carrier 17. Die Steckerbuchse 22 ist über. Flachtikschreib 17 mit dem Gezzause 17 ownership Components can communicate with electronic components of the outer door knob, and also through which they can be fed.
  • FIG. 3 shows a detail on which features of the coupling element 15 are particularly clearly visible
  • FIG. 4 shows a view only of the coupling element 15.
  • the coupling element 15 is in one piece and has, in addition to the coupling projection with the torque transmission surface 15.1 a shaft portion 15.2 and a counterweight 15.3. This causes the center of gravity S of the coupling element with respect to the coupling projection on the other side of the axis of rotation 20 of the rotor. When the rotor is rotated at very high speeds, therefore, the coupling element never due to the centrifugal force in a coupling position (in FIGS. 3 and 4 to the top).
  • the wall thickness of the bearing sleeve 16 is selected so that when exerting a large, increasing torque on the coupling element - which acts as a shearing force on the coupling element - first the bearing sleeve is deformed.
  • the coupling element 15 in addition to the recess for the leg 14.2 of the leg spring also has a recess for a permanent magnet 31.
  • This can cooperate with a Hall sensor, not shown, on the electronics carrier, whereby the closing state can be determined.
  • a Hall sensor not shown, on the electronics carrier, whereby the closing state can be determined.
  • this is an optional feature due to the procedure of the type described here: the operating principle of the closing device requires no knowledge of the closing state.
  • FIG. 5 is the endless spindle 13 globoid, namely by an outer and an inner contour deviating from the cylindrical shape depending on the outside arched are.
  • This allows the first leg 14.1 of the leg spring to follow the contours in the turns engaged in a rotational movement about the axis of the journal 18, which in turn allows the thread depth to not exceed the thickness of the spring leg massively and still provide reliable guidance all the way along the spindle is guaranteed.
  • the globoide spindle thus saves space; a very compact design is possible.
  • FIG. 6 illustrates the state in which the drive has received a coupling signal and the first leg has moved accordingly by means of the endless spindle 13.
  • the coupling element is blocked and can not move into the coupling state, because the rotor is not aligned in the state shown on the coupling recesses of the output element.
  • the spring 14 is thus tensioned by the leg 14.1 in the state according to FIG. 6 is moved.
  • the locking device can also directly from the decoupled state in the state according to FIG. 7 pass.
  • FIG. 10 shows the output sleeve. It has on the inside a plurality of coupling recesses 8.1, in which the coupling projection of the coupling element can engage.
  • the output sleeve 8 via outer coupling recesses 8.4 rotatably coupled to the driver 9.
  • the coupling element 15 engages one of the coupling recesses 8.1 in the coupling state.
  • the output element can also be made in one piece, ie output sleeve 8 and driver 9 are formed by a single component.
  • the torque transmission surface 8.2 of the output sleeve 8 and the torque transmission surface 15.1 of the coupling element 15 are not parallel to the axial direction 30, but in a different angle of 0 ° ⁇ to this. This ensures that the force of the leg spring is always sufficient to retract the coupling element in the decoupled position when no external torque is applied to the rotor - in other words, it ensures that the force of the leg spring is sufficient, any static friction forces between the rotor and to overcome the stator and the resulting torque.
  • the angle is chosen to be so small that the radial component (ie, the force component along the radial direction 30) of the normal force N is approximately equal to the radial component of the maximum static frictional force F H or less.
  • the negative -F H of the maximum static friction force F H exerted on the coupling element at a given torque is shown. This prevents that at high torque to the rotor, the coupling element can be pushed back against the spring force in the decoupled position due to the normal force.
  • the coupling element instead of engaging in a coupling recess of the output sleeve in the coupling state, engage in a blocking state in a blocking geometry of the stator.
  • the angle discussed above must be either 0 ° or in any case be so small that not with a large applied torque, the coupling element can be moved radially against the non-destructive nondestructive force.
  • the center of gravity of the coupling element will lie on this side of the axis of rotation.
  • FIG. 12 shows the Bohrschutz 21. This is designed as a disc which is rotatably inserted into a guide structure of the rotor housing. Next you can see a breaking point 41 outside the Bohrschutzes.
  • the predetermined breaking point gives way to a strong train on the rotor and prevents the rotor or the entire lock cylinder can be solved by pulling out of the anchorage. It also protects against kinking attacks and excessive torque. To a certain extent, it also prevents the drill guard from being easily levered out and can not tear out any larger pieces of the coupling module.
  • FIG. 13 finally shows the rotor as a whole.
  • the housing of the rotor is composed of two housing shells 10.1, 10.2, which are generally not identical on the inside and have structures which allow the attachment of the elements described above.
  • the housing shells can be made of a hard and heat-resistant plastic or of a metal - for example, with zinc die-casting.
  • the housing shells are held together by two bearing rings 51, 52 and optionally by a clamp (not shown).
  • the bearing rings can be made of stainless steel or other suitable material and serve in addition to the mechanical stability and the low-friction bearing of the rotor in the stator.
  • the spring element may also be designed differently than that shown with a plurality of turns and two legs, for example as a leaf spring.
  • An axial movement of the coupling element in place of the radial arrangement described and discussed here is conceivable, even if the radial arrangement shown is structurally particularly simple and reliable and therefore advantageous.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Claims (15)

  1. Dispositif de verrouillage présentant un rotor (4) monté dans un stator (5),
    le rotor (4) pouvant être accouplé à un élément entraîné (8, 9) et/ou être verrouillé contre le stator (5) par un entraînement à commande électronique,
    l'entraînement à commande électrique étant disposé dans le rotor et tournant conjointement avec le rotor lorsque le rotor se déplace en rotation,
    caractérisé en ce que
    l'entraînement électrique est accouplé par l'intermédiaire d'un élément élastique (14) à un élément d'accouplement (15) qui accouple le rotor à l'élément entraîné et qui bloque le rotor contre le stator de telle sorte qu'un déplacement amené par l'entraînement électrique puisse être transféré à l'élément d'accouplement (15) par l'intermédiaire de l'élément élastique (14).
  2. Dispositif de verrouillage selon la revendication 1, caractérisé en ce que l'élément d'accouplement (15) peut être déplacé radialement dans le rotor par l'élément élastique (14).
  3. Dispositif de verrouillage selon la revendication 2, caractérisé en ce que l'élément d'accouplement (15) présente des deux côtés de l'axe de rotation (20) du rotor (4) des parties de masse lorsque le dispositif de verrouillage est à l'état découplé.
  4. Dispositif de verrouillage selon la revendication 3, caractérisé en ce que l'élément d'accouplement (15) présente une saillie d'accouplement qui s'engage dans un creux complémentaire d'accouplement de l'élément entraîné (8, 9) lorsqu'il est à l'état accouplé et en ce que par rapport à la saillie d'accouplement, le centre de masse (S) de l'élément d'accouplement (15) est disposé sensiblement sur l'axe de rotation (20) ou sur le côté de l'axe de rotation éloigné de la saillie d'accouplement.
  5. Dispositif de verrouillage selon l'une des revendications précédentes, dans lequel l'élément d'accouplement (15) présente une saillie d'accouplement qui, à l'état accouplé, s'engage dans un creux complémentaire d'accouplement de l'élément entraîné (8, 9), caractérisé en ce qu'une surface (15.1) de transfert de couple de rotation qui transfère un couple de rotation entre le rotor (4) et l'élément entraîné (8, 9) forme un angle (α) différent de 0° avec la direction de déplacement de l'élément d'accouplement.
  6. Dispositif de verrouillage selon la revendication 5, caractérisé en ce que ledit angle est compris entre 3° et 10°.
  7. Dispositif de verrouillage selon l'une des revendications précédentes, caractérisé par une douille de montage (16) qui monte l'élément d'accouplement (15), la douille de montage pouvant être déformée lorsqu'un couple de rotation supérieur à une valeur donnée est exercée entre le rotor (4) et l'élément entraîné (8, 9), les autres éléments du dispositif de verrouillage n'étant pas affectés par un couple de rotation présentant cette valeur.
  8. Dispositif de verrouillage selon l'une des revendications précédentes, caractérisé en ce que l'élément élastique (14) peut être déplacé par une broche rotative (15) entraînée par l'entraînement électrique.
  9. Dispositif de verrouillage selon la revendication 8, caractérisé en ce que la broche rotative est une broche sans fin.
  10. Dispositif de verrouillage selon les revendications 8 ou 9, caractérisé en ce que la broche rotative présente une forme extérieure globoïde.
  11. Dispositif de verrouillage selon les revendications 8 à 10, caractérisé en ce que l'élément élastique (14) est un ressort à branches dont une extrémité s'engage dans les enroulements de la broche rotative.
  12. Dispositif de verrouillage selon l'une des revendications précédentes, caractérisé en ce qu'une électronique d'évaluation qui évalue des signaux de données reçus et qui prend des décisions concernant la présence d'une autorisation d'accès est disposée dans le rotor (4).
  13. Dispositif de verrouillage selon l'une des revendications précédentes, caractérisé en ce qu'un élément (21) de protection contre le forage est monté à rotation dans le rotor (4).
  14. Dispositif de verrouillage selon l'une des revendications précédentes, caractérisé en ce que le rotor (4) présente un emplacement (41) de rupture préférentielle disposé à l'extérieur d'une partie sécurisée.
  15. Dispositif de verrouillage selon l'une des revendications précédentes, caractérisé en ce qu'il est configuré comme cylindre de verrouillage doté d'un contour extérieur normalisé et en ce qu'il présente par exemple au moins une poignée de porte (2, 3).
EP10747396.9A 2009-08-31 2010-08-25 Dispositif de verrouillage Active EP2473690B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH13482009A CH701790A2 (de) 2009-08-31 2009-08-31 Schliesseinrichtung.
PCT/CH2010/000209 WO2011022855A1 (fr) 2009-08-31 2010-08-25 Dispositif de fermeture

Publications (2)

Publication Number Publication Date
EP2473690A1 EP2473690A1 (fr) 2012-07-11
EP2473690B1 true EP2473690B1 (fr) 2014-05-07

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EP10747396.9A Active EP2473690B1 (fr) 2009-08-31 2010-08-25 Dispositif de verrouillage

Country Status (4)

Country Link
EP (1) EP2473690B1 (fr)
CH (1) CH701790A2 (fr)
ES (1) ES2486254T3 (fr)
WO (1) WO2011022855A1 (fr)

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EP4273355A1 (fr) 2022-05-03 2023-11-08 Uhlmann & Zacher GmbH Actionneur d'embrayage pour une serrure de porte

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Publication number Priority date Publication date Assignee Title
DE102019113514A1 (de) * 2019-05-21 2020-11-26 ASTRA Gesellschaft für Asset Management mbH & Co. KG Schließeinrichtung
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EP2473690A1 (fr) 2012-07-11
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CH701790A2 (de) 2011-03-15

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