EP1240399B1 - Serrure a cylindre electromecanique - Google Patents

Serrure a cylindre electromecanique Download PDF

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Publication number
EP1240399B1
EP1240399B1 EP00989145A EP00989145A EP1240399B1 EP 1240399 B1 EP1240399 B1 EP 1240399B1 EP 00989145 A EP00989145 A EP 00989145A EP 00989145 A EP00989145 A EP 00989145A EP 1240399 B1 EP1240399 B1 EP 1240399B1
Authority
EP
European Patent Office
Prior art keywords
actuator
key
side bar
core
combination according
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.)
Expired - Lifetime
Application number
EP00989145A
Other languages
German (de)
English (en)
Other versions
EP1240399A1 (fr
Inventor
Lars Wallden
Björn Magnusson
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.)
Assa Abloy Opening Solutions Sweden AB
Original Assignee
Assa AB
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 Assa AB filed Critical Assa AB
Publication of EP1240399A1 publication Critical patent/EP1240399A1/fr
Application granted granted Critical
Publication of EP1240399B1 publication Critical patent/EP1240399B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E05B47/0619—Cylinder locks with electromagnetic control by blocking the rotor
    • E05B47/0626—Cylinder locks with electromagnetic control by blocking the rotor radially
    • E05B47/063—Cylinder locks with electromagnetic control by blocking the rotor radially with a rectilinearly moveable blocking 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
    • E05B2047/0024—Cams
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0057—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance
    • E05B27/006—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance whereby a small rotation without the correct key blocks further rotation of the rotor
    • E05B27/0064—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with increased picking resistance whereby a small rotation without the correct key blocks further rotation of the rotor whereby the rotor is irreversibly blocked or can only be moved back with an authorized tool or key
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0082—Side bar 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
    • E05B47/0001—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 present invention relates generally to an electromechanical cylinder lock and, in particular, a cylinder lock in which a blocking arrangement is mechanically returned to a blocking position by means of key withdrawal.
  • Electromechanical locking devices are known which include electrically interfaced or controlled release mechanisms for operating a lock cylinder.
  • US patent No 5,839,307 discloses an electromechanical cylinder lock which includes an outer lock housing and a rotatable core located therein which is controlled by dual locking features.
  • a plurality of electromechanical locking members in the core with grooves formed therein accept a side bar or portions in a non-blocking position.
  • a magnetic core rotates the electromechanical locking members to a desired position relative to the side bar to allow rotation of the barrel.
  • a drawback with this prior art locking device is that no mechanical returning of the locking members is provided. This means that the locking members remain in a non-blocking position should the lock be de-energised during operation thereof, thus decreasing the security of the lock. This could be a result of someone removing the battery in the key powering the blocking mechanism.
  • An object of the present invention is to provide a lock device of the kind initially mentioned in which the electrically controlled blocking mechanism is automatically returned to a blocking position when the key is withdrawn from the lock cylinder.
  • Another object is to provide a lock device, which is more secure than prior art lock devices.
  • the invention is based on the realisation that the blocking mechanism can be provided with means co-operating with a return mechanism during withdrawal of a key from the lock.
  • a lock-key combination according to the invention is more secure than prior art devices in that mechanical returning of the blocking mechanism is ensured during withdrawal of the key from the lock.
  • FIG 1 an exploded perspective view of a cylinder core according to the invention, generally designated 10, is shown.
  • the core is arranged to be placed in a bore 4 of a conventional cylinder housing 2 (shown in figures 5-9).
  • the core has an outer surface substantially corresponding to the bore of the housing and includes a key-way 12 configured to receive a key as is known in the art.
  • the core 10 includes a plurality of tumbler pin bores 14 that receive tumbler pins, of which one 16 is shown in figure 1.
  • the manner in which a properly bitted key (not shown in figure 1) engages the tumbler pins and positions them to a shear line to permit the core 10 to be rotated with respect to the housing is known in the art and thus will not be described in more detail herein.
  • the blocking function of the tumbler pins 16 will be disregarded, assuming that a correctly bitted key has been inserted into the lock. Thus, when for example it is stated herein that the core is blocked, it is blocked by the electrically controlled blocking mechanism.
  • the housing 2 includes a cavity 6 in which is positioned a side bar 20 co-operating with the housing either to block or to permit rotation of the core within the housing.
  • a side bar is described for example in the Swedish patent application No 7906022-4, which is incorporated herein by reference.
  • the wall of the cavity is formed as a camming surface for moving the side bar out of the cavity upon rotation of the core.
  • FIG 6 which shows the side bar 20 and an actuator 30 (discussed in detail below) in a core rotation blocking position, the side bar is received in the cavity 6 and its inner edge extends beyond the internal surface of the housing bore 4 and engages the housing to prevent the core from rotation to operate the lock.
  • blocking mechanism will now be described in detail.
  • the term blocking mechanism will in this description refer to, besides the side bar 20, the elongated actuator 30 with a partly cylindrical envelope surface and an electric motor 40 with a shaft 46 mechanically coupled to the actuator 30.
  • the actuator is located radially inward of the side bar 20 in a cylindrical actuator bore 32, see figure 5.
  • the actuator 30 can be rotated by means of the electric motor 40 positioned in the actuator bore 32 and mechanically connected to the actuator 30.
  • the connection is effected by means of the motor shaft 46 being shaped like a screwdriver tip, that is, with an end portion with a flat or at least non-circular cross section.
  • the end of the motor shaft 46 is positioned in a corresponding bore 33 in the end surface of the actuator facing the motor, see figure 2a. In that way, the actuator is rotated together with a motor shaft when the motor 40 is energised.
  • the actuator 30 is journalled by means of an extending pin 34, see figure 2b, co-operating with a corresponding bore (not shown) in the actuator bore.
  • the motor 40 is energised under control of lock electronics 48 electrically connected to the motor by means of wires, see figure 1.
  • the electronics 48 comprises a custom made micro controller with associated memories, driving circuitry etc. and is powered by a battery located in a key inserted into the lock.
  • a key contact 42 in the form of an electrically conducting metal strip shaped so as to make contact with a contact on the side of the key blade of the inserted key.
  • a finger pin 50 movable in a direction perpendicular to the centre axis of the cylinder core 10.
  • the finger pin 50 is provided with a cut out portion 52 aligned with the actuator 30, see figure 3, and is spring loaded downward as seen in figures 5-9 by means of a helical spring 54 located above the finger pin 50.
  • the finger pin rests on the actuator 30, as seen in figures 6 and 8, thereby securing it against unwanted rotation.
  • the finger pin is lifted by the side code 72 of an inserted key 70, as seen in figures 4, 5 and 7, to an upper end position, in which the rotation of the actuator 30 is not affected.
  • a yoke shaped positioning element 60 is provided outside of the actuator 30 but inward of the side bar 20, see also figure 3.
  • the positioning element 60 is spring biased radially outward by means of springs (not shown).
  • springs not shown
  • the spring force applied on the positioning element 60 forces the side bar 20 radially outward and into engagement with the walls of the side bar cavity 4.
  • a spring (not shown) provided at the other end of the side bar compared to the positioning element and also functioning to urge the side bar 20 radially outward.
  • the blocking mechanism is shown in a non-blocking position, i.e., with an inserted key.
  • the side bar 20 is shown out of alignment with the side bar cavity 6 and in a retracted position and the cylinder core 10 is thus free to rotate in the cylinder housing bore.
  • the actuator 30 is not entirely cylindrical. Instead, besides a cylindrical envelope surface 38, it is provided with a recess 35 and an essentially flat engagement surface 36, see figures 2a and 2b.
  • the actuator 30 In the non-blocking position, the actuator 30 is in the position shown in figure 5.
  • the cut out portion comprising the recess 35 allows the side bar to be retracted within the outer periphery of the core 10 and into the recess 35, thus allowing rotation of the core relative to the housing.
  • the rotation of the actuator 30 to the position shown in figure 5 is effected by means of the motor 40.
  • the electronics 48 verifies that a correct key has been inserted and sends control signals to the motor 40 to rotate the actuator.
  • the normal blocking position of the blocking mechanism will now be described with reference to figure 6.
  • the side bar 20 has now been aligned with the side bar cavity 6 and pushed therein by means of the force exerted by the positioning element 60 and the above mentioned spring (not shown) provided at the other end of the side bar.
  • the actuator has then been rotated approximately 180° counter clockwise compared to the position shown in figure 5. This means that instead of the recess 35, the cylindrical envelope surface 38 of the actuator now faces the side bar. In that position, the side bar 20 is prevented from being cammed to within the outer periphery of the core 10, i.e., to within the shear line between the core 10 and the housing 2.
  • the rotational movement of the actuator 30 to the position shown in figure 6 is commanded by the electronics 48 when the key is withdrawn from the lock key-way 12. This is the normal operation of the blocking mechanism.
  • the side bar 20 is shown in engagement with the walls of the side bar cavity 6. This position is obtained when the side bar 20 aligned with the side bar cavity 6 and, as already stated, the positioning element 60 forces the side bar into engagement with the side bar cavity walls. In that position, the side bar does not impede the rotation of the actuator 30.
  • the key When being withdrawn from the key-way 12, the key releases the finger pin 50 and the spring force exerted by the spring 54 forces the finger pin downward against the actuator 30.
  • an engagement surface 56 in the cut out portion 52 of the finger pin 50 engages the engagement surface 36 of the actuator, thereby forcing the actuator to rotate counter clockwise approximately 60° to the position shown in figure 8.
  • the envelope surface 38 of the actuator faces the side bar 20, thereby blocking the radially inward movement of the side bar.
  • the actuator 30 has not been rotated as far away from the non-blocking position shown in figures 5 and 7 as when in the normal blocking position shown in figure 6.
  • the interaction between the engagement surface 36 of the actuator and the engagement surface 56 of the finger pin ensures that the actuator can not accidentally or fraudulently be rotated to a non-blocking position.
  • the rotation of the actuator 30 is also constrained or indexed by means of a protrusion or pin 22 provided on the side bar 20 and a co-operating indexing groove 39 in the envelope surface of the actuator 30, see figure 2a.
  • the operation thereof appears from figure 9, which is a cross-sectional view of the lock in level with the indexing groove of the actuator.
  • the groove 39 runs approximately 180° degrees around the actuator and the protrusion 22 is guided in that groove during rotation of the actuator. This limits the rotation of the actuator to within allowed limits and thus ensures reliable rotation of the actuator.
  • FIG 10a there is shown an actuator 30' of essentially the same shape as the actuator 30 described above with reference to the first embodiment.
  • the actuator shown in figure 10a is provided with longitudinal grooves 37 along essentially the entire envelope surface 38' thereof.
  • the grooves 37 constitute means co-operating with at least one step 24 provided on the side bar 20'.
  • the function of the grooves 37 and the step 24 will now be described with reference to figure 10c, which is a cross sectional view of the actuator 30' and the side bar 20' taken along the lines A-A, see figure 10b.
  • the step 24 does not impede the rotation of the actuator 30'.
  • the side bar 20' is cammed out of the cavity, thereby pressing against the actuator 30'. If the actuator is rotated while the core is rotated, the step 24 of the side bar 20' will engage the first groove 37 encountered and be seated therein, thereby preventing further rotation of the actuator 30'.
  • step 24 and the grooves 37 increases the security of the lock, making it even harder to effect a fraudulent movement of the actuator from a blocking to a non-blocking position.
  • a motor has been shown powered by a battery provided in the key. It could also be powered by a battery provided in the lock or by an external power source connected to the lock by means of wires.
  • the actuator has been shown with a specific shape. It is realised that it could have any suitable shape as long as it moves from a non-blocking position (figure 5) to a blocking position (figure 8) under mechanical control when the key is withdrawn from the lock.
  • finger pin Although only one finger pin has been shown in the figures, there can be more than one finger pin interacting with an inserted key and the actuator.
  • This finger pin has been shown movable essentially perpendicularly to the axis of the lock cylinder. It is realised that this pin can be movable in other directions as long as the interaction between the pin and the key and the actuator, respectively, is provided in a functioning way.
  • the finger pin has been shown interacting with a side code of the key.
  • the finger pin can also interact with other portions of the key, such as a groove provided on the side of the key blade. It could for example be provided in the form of a guided pin.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Valve Device For Special Equipments (AREA)
  • Amplifiers (AREA)

Claims (12)

  1. Combinaison de serrure à cylindre électromécanique, comprenant :
    un boítier (2) comprenant un alésage ;
    un noyau (10) agencé en rotation dans ledit alésage et comprenant une rainure (12) pour recevoir une clé (70) ;
    une barre latérale (20) coopérant entre le boítier (2) et le noyau (10) et étant mobile entre
    une première position, dans laquelle la rotation du noyau par rapport au boítier est permise, et
    une deuxième position, dans laquelle la rotation du noyau par rapport au boítier est bloquée ; et
    un actionneur à commande électronique (30) prévu dans ledit noyau (10) et étant rotatif entre
    une première position (figure 5) dans laquelle le mouvement de ladite barre latérale (20) vers ladite première position de barre latérale est permise ; et
    une seconde position (figure 6) dans laquelle le mouvement de ladite barre latérale (20) vers ladite première position de barre latérale est bloquée ;
       caractérisée par
       des moyens de rappel (50) coopérant de manière mécanique avec ladite clé (70) et ledit actionneur (30) et déplaçant ledit actionneur depuis ladite première position à une troisième position (figure 8) en réponse au retrait de la clé de ladite rainure (12), ladite troisième position bloquant ledit mouvement de ladite barre latérale (20) vers ladite première position de barre latérale.
  2. Combinaison selon la revendication 1, dans laquelle lesdits moyens de rappel (50) sont une clavette, de préférence, une clavette à griffe.
  3. Combinaison selon la revendication 1 ou 2, dans laquelle lesdits moyens de rappel (50) sont mobiles dans un sens essentiellement perpendiculaire à l'axe central du noyau (10).
  4. Combinaison selon l'une quelconque des revendications 1 à 3, dans laquelle lesdits moyens de rappel (50) sont comprimés en direction de l'actionneur (30), de préférence au moyen d'un ressort (54), de préférence un ressort hélicoïdal.
  5. Combinaison selon l'une quelconque des revendications 1 à 4, dans laquelle lesdits moyens de rappel (50) coopèrent avec un code latéral (72) de la clé (70).
  6. Combinaison selon l'une quelconque des revendications 1 à 5, dans laquelle ledit actionneur est pourvu d'une surface d'enveloppe essentiellement cylindrique (38) avec un creux (35) et une première surface de mise en prise (36), ladite première surface de mise en prise étant agencée pour coopérer avec une deuxième surface de mise en prise (56) prévue sur les moyens de rappel (50) de manière à déplacer l'actionneur depuis ladite première position (figure 5) vers ladite troisième position (figure 8) en réaction au retrait de la clé (70) de ladite rainure (12).
  7. Combinaison selon la revendication 6, dans laquelle ladite deuxième surface de mise en prise est prévue dans une partie découpée desdits moyens de rappel (50).
  8. Combinaison selon la revendication 7, dans laquelle lesdites première et deuxième surfaces de mise en prise (36, 56) sont essentiellement plates et, avec ledit actionneur dans ladite première position, présentent un angle mutuel d'environ 60°.
  9. Combinaison selon l'une quelconque des revendications 1 à 8, dans laquelle ledit actionneur (30) est pourvu d'une rainure d'indexation coopérant avec une saillie (22) prévue sur ladite barre latérale (20) de manière à limiter la rotation dudit actionneur.
  10. Combinaison selon la revendication 9, dans laquelle ladite rainure s'étend à environ 180° autour dudit actionneur dans un sens parallèle au sens de rotation dudit actionneur.
  11. Combinaison selon l'une quelconque des revendications 1 à 10, dans laquelle ledit actionneur est tourillonné dans une première extrémité de celui-ci au moyen d'un arbre de moteur (48) coopérant avec un alésage prévu dans ladite première extrémité et dans une deuxième extrémité de celui-ci au moyen d'une cheville en saillie (34).
  12. Combinaison selon l'une quelconque des revendications 1 à 11, dans laquelle ledit actionneur (30') est pourvu de rainures longitudinales (37) agencées pour coopérer avec une saillie (24) prévue sur la barre latérale (20') afin d'empêcher la rotation de l'actionneur (30') pendant la rotation du noyau (10).
EP00989145A 1999-12-23 2000-12-22 Serrure a cylindre electromecanique Expired - Lifetime EP1240399B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9904771 1999-12-23
SE9904771A SE517942C2 (sv) 1999-12-23 1999-12-23 Elektromekanisk nyckel/cylinderlåskombination
PCT/SE2000/002653 WO2001048341A1 (fr) 1999-12-23 2000-12-22 Serrure a cylindre electromecanique

Publications (2)

Publication Number Publication Date
EP1240399A1 EP1240399A1 (fr) 2002-09-18
EP1240399B1 true EP1240399B1 (fr) 2004-09-15

Family

ID=20418296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00989145A Expired - Lifetime EP1240399B1 (fr) 1999-12-23 2000-12-22 Serrure a cylindre electromecanique

Country Status (7)

Country Link
EP (1) EP1240399B1 (fr)
AT (1) ATE276418T1 (fr)
AU (1) AU2568801A (fr)
DE (1) DE60013899D1 (fr)
NO (1) NO20022995L (fr)
SE (1) SE517942C2 (fr)
WO (1) WO2001048341A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006012196B3 (de) * 2006-02-09 2007-08-02 Iseo Serrature S.P.A., Pisogne Schließzylinderanordnung
DE102006042030B3 (de) * 2006-08-21 2007-12-13 Iseo Serrature S.P.A., Pisogne Schließzylinderanordnung
TWI768269B (zh) * 2018-12-07 2022-06-21 瑞士商溫隆股份公司 圓柱形鎖單元及相關聯的鑰匙

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Publication number Priority date Publication date Assignee Title
IT1316812B1 (it) * 2000-03-17 2003-05-12 Iseo Serrature Spa Serratura per serramenti ad elevata flessibilita' di impiego
DE10311986B4 (de) * 2003-03-12 2005-03-17 Ikon Ag Präzisionstechnik Schließzylinder
SE527206C2 (sv) * 2005-04-29 2006-01-17 Assa Ab Låsanordning samt sätt att montera en låsanordning
SE0500976L (sv) * 2005-04-29 2006-01-17 Assa Ab Elektromekanisk låsanordning
SE527234C2 (sv) 2005-04-29 2006-01-24 Assa Ab Elektromekanisk låsanordning
DE102010053154A1 (de) * 2010-11-26 2012-05-31 Assa Abloy Sicherheitstechnik Gmbh Bewegungssperre für ein Sperrelement oder einen Aktuator in einem Schließsystem
CN104328950B (zh) * 2014-10-27 2016-09-07 武汉普林光通科技有限公司 一种低功耗安全电子锁
US10570643B2 (en) 2017-06-08 2020-02-25 Winloc Ag Cylinder lock core for a cylinder lock unit
CN109538019B (zh) * 2019-01-21 2023-11-21 万嘉集团有限公司 电机式自动叶片锁
AT524794B1 (de) * 2021-04-08 2022-09-15 Evva Sicherheitstechnologie Zylinderschloss
DE102022203008A1 (de) 2022-03-28 2023-09-28 Aug. Winkhaus Gmbh & Co. Kg Schlüssel für einen Schließzylinder und Schließzylinder für einen solchen Schlüssel

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Publication number Priority date Publication date Assignee Title
US4756310A (en) * 1982-05-28 1988-07-12 Hemodynamics Technology, Inc. System for cooling an area of the surface of an object
GB2182089B (en) * 1985-10-25 1989-12-13 Lowe & Fletcher Ltd Lock and key and method of operating lock
DE3727566A1 (de) * 1987-08-19 1989-03-02 Bks Gmbh Schliesszylinder mit elektromagnetisch betaetigbarem sperrelement
US5839307A (en) * 1997-06-13 1998-11-24 Medeco Security Locks, Inc. Electromechanical cylinder lock with rotary release

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006012196B3 (de) * 2006-02-09 2007-08-02 Iseo Serrature S.P.A., Pisogne Schließzylinderanordnung
DE102006042030B3 (de) * 2006-08-21 2007-12-13 Iseo Serrature S.P.A., Pisogne Schließzylinderanordnung
TWI768269B (zh) * 2018-12-07 2022-06-21 瑞士商溫隆股份公司 圓柱形鎖單元及相關聯的鑰匙
EP3891352B1 (fr) * 2018-12-07 2024-05-15 Winloc AG Unité de serrure à barillet et clé associée

Also Published As

Publication number Publication date
NO20022995D0 (no) 2002-06-21
SE9904771L (sv) 2001-06-24
WO2001048341A1 (fr) 2001-07-05
NO20022995L (no) 2002-08-22
SE9904771D0 (sv) 1999-12-23
ATE276418T1 (de) 2004-10-15
EP1240399A1 (fr) 2002-09-18
DE60013899D1 (de) 2004-10-21
SE517942C2 (sv) 2002-08-06
AU2568801A (en) 2001-07-09

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