EP4019719B1 - Locking device - Google Patents

Locking device Download PDF

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Publication number
EP4019719B1
EP4019719B1 EP21214582.5A EP21214582A EP4019719B1 EP 4019719 B1 EP4019719 B1 EP 4019719B1 EP 21214582 A EP21214582 A EP 21214582A EP 4019719 B1 EP4019719 B1 EP 4019719B1
Authority
EP
European Patent Office
Prior art keywords
housing
locking device
driver
plunger
balls
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.)
Active
Application number
EP21214582.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP4019719C0 (en
EP4019719A1 (en
Inventor
Joel Wistrand
Johan Gustafsson
David Giertz
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.)
Zyax AB
Original Assignee
Zyax 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 Zyax AB filed Critical Zyax AB
Publication of EP4019719A1 publication Critical patent/EP4019719A1/en
Application granted granted Critical
Publication of EP4019719B1 publication Critical patent/EP4019719B1/en
Publication of EP4019719C0 publication Critical patent/EP4019719C0/en
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
    • 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
    • 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
    • E05B17/2007—Securing, deadlocking or "dogging" the bolt in the fastening position
    • E05B17/2011—Securing, deadlocking or "dogging" the bolt in the fastening position using balls or the like cooperating with notches
    • 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
    • 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
    • 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
    • E05B47/0684—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially
    • E05B47/0692—Controlling mechanically-operated bolts by electro-magnetically-operated detents by disconnecting the handle radially with a rectilinearly moveable coupling element
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/12—Locks or fastenings with special structural characteristics with means carried by the bolt for interlocking with the keeper
    • E05B63/121—Locks or fastenings with special structural characteristics with means carried by the bolt for interlocking with the keeper using balls or the like cooperating with notches
    • 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
    • E05B2047/0023—Nuts or nut-like elements moving along a driven threaded axle
    • 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
    • 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
    • E05B2047/0028—Clutches, couplings or braking arrangements using electromagnetic means
    • 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

Definitions

  • the present invention relates generally to a locking device and more specifically to an improved barrel lock assembly which is reliable in function and easy to use.
  • a bolt activating barrel lock cylinder for example in a door to lock or unlock the door, includes a housing cylinder and a plug.
  • the plug is the portion of the lock cylinder that accepts a key.
  • the plug is provided with spring biased pins with different lengths that correspond to cuts in the key.
  • the pins are moved into keyways in the cylinder by the key.
  • the plug When the key is inserted in a keyhole in the plug, all pins are aligned in height in the keyways.
  • the plug also turns.
  • a driver or follower which actuates the bolt in the lock, which lock or unlock the door.
  • lock cylinder comprises a pair of generally cylindrically shaped lock body portions, one elongated and generally solid, the other generally hollow and short, and a means for axially locking the two portions together.
  • the means includes a plurality of balls and a spring biased lock structure in one body portion which is axially moveable relative to the other body portion.
  • the spring biased lock structure includes an axial extension that penetrates the first portion.
  • the locking balls are provided in the first portion.
  • the axial extension spreads the locking balls apart from each other through holes in the first portion into detents in the second portion and thereby locks the two portions together.
  • the first portion is turned clockwise whereby a notch is manipulated into a guide, and thereby preventing the axial extension from exit the first portion.
  • a further known type of lock cylinder disclosed in patent publication CN 108252573 comprises an output shaft at a driving motor that drives a pressing member to move axially along a rotating shaft of a first lock cylinder.
  • a pair of movable balls are driven into a first and second receiving holes.
  • the circumferential direction is relatively fixed, and when the operation portion is rotated, a second lock cylinder can be rotated relative to the lock case, thereby driving the unlocking fork to rotate, thereby unlocking the door lock.
  • the output shaft of the driving motor is controlled to be reversely moved, so that the pressing member is reversely moved so that the movable balls cannot be held while being in the first receiving hole. Therefore, the first lock cylinder and the second lock cylinder are relatively free in the circumferential direction, and when the first lock cylinder is rotated, the second lock cylinder cannot be rotated, so that the lock cannot be unlocked.
  • the drawback with locking devices that comprises an axial extension which manipulates two balls as described above, is that an axial extension does not have a smooth circumferential surface as a ball have. Therefore, the axial extension wears on the surface of the balls during time, and impair the functionality of the locking device, compared with a locking device where the axial extension is replaced with a third ball.
  • An object of the present invention is to provide a locking device to prevent unauthorized personnel to open a door.
  • a drive means with a plunger and a lock structure inside a lock holder activates a plurality of balls to connect the housing to a carrier.
  • the locking device is of the key-less type meaning that the lock can be activated without using a key, still preventing unauthorized personnel from unlock a door to which the locking device is attached.
  • a housing 2 is rotatably arranged in a lock holder 3, preferably a lock cylinder.
  • the lock holder 3 supports a locking device 1 and is adapted to manipulate a locking mechanism 4 in a door 5.
  • the locking mechanism 4 includes a latch 6 which engages or disengages with a striking plate 7 in a door frame 8.
  • the present invention is not limited to door locks, but can be used in all kinds of locks, such as padlocks, cabin locks, window locks and similar. Also it should be understood that the present invention is not limited to doors, but can also be used with windows, lids, drawers and similar.
  • the locking device 1 includes the housing 2, a driver 9 rotatably arranged at a first end 18 of the housing 2, directed towards the locking mechanism 4 with the latch 6, to transfer motion to the latch 6 engaging or disengaging the striking plate 7, and a drive means 10, for example a motor or a solenoid.
  • the drive means 10 can be driven by electricity delivered from an energy source such as a super capacitor, a battery or other energy sources 11 in a holder H arranged at the other end 19 of the housing 2.
  • the holder H may be arranged with a switch S, an authorization swich which activates the drive means 10.
  • the locking device 1 further includes a transmission construction 12 for transfer motion to and from the housing 2 to the driver 9.
  • a plunger 13 see Fig. 5 , with a free end 14 and is attached to the drive means 10, suitable at a second end 15 opposite the first end.
  • the plunger 13 is axially displaceable between a position where the free end 14 of the plunger 13 is retracted in the housing 2, and a position where the free end 14 of the plunger 13 is close to the driver 9.
  • the plunger 13 may have threads 16 by which it is translated between its positions by the drive means 10.
  • the free end 14 is, in its front position, in contact with a spring biased ball 17.
  • the housing 2 comprises at the first end 18 the transmission construction 12 for connecting or disconnecting the housing 2 and the driver 9 in a turn-secured connection and at the second end 19 a space accommodating the drive means 10 for the plunger 13.
  • One part of the transmission construction 12 comprises at least two circumferential balls 20 at the outer edge or boundary in a recess 21 of the housing 2 adjacent to the driver 9, and the second part of the transmission construction comprises ball accommodating cavities 22 inside the driver 9 and radially through holes 23 in the housing 2.
  • the size of the ball accommodating cavities 22 is adapted to partly accommodate the balls 20, and the size of the through holes 23 is adapted to let the balls 20 partly pass through.
  • the circumferential balls 20 Since the distance between the walls of the recess 21 in the housing 2 and the corresponding wall of the driver 9 provided with accommodating cavities 22 is small, the circumferential balls 20 only pass partly through the holes 23 when placed in the ball accommodating cavities 22.
  • the number of ball accommodating cavities 22 and through holes 23 is equal to the number of balls 20.
  • the transmission construction 12 comprises the spring biased central ball 17 between the circumferential balls 20 and placed in a bottom cavity 24 in the driver 9 provided with a resilient construction, such as a spring 25.
  • the spring force pushes the central ball 17 out of the bottom cavity 24, through a central hole 26 arranged axially in the housing 2, against a seat 27 located in the housing 2.
  • the spring 25 is stretched the central ball 17 is placed in the seat 27 in the housing 2.
  • the spring 25 is compressed, by the movement of the plunger 13 pushing the central ball 17, the central ball 17 is placed in the bottom cavity 24 in the driver 9.
  • the transmission construction 12 provides two modes for transfer motion between the housing 2 and the driver 9.
  • the plunger 13 is moved away from the position where its free end 14 is close to the driver 9, the ball 17, into the housing 2, the balls 20 are placed and held so that the central ball 17 is by the spring 25 pushed against the seat 27 in the housing 2 keeping the central ball 17 in a fixed and a middle, centre, position in the recess 21 and having the other, at least two, balls 20 placed radially around it, and the other balls 20 are each, by the central ball 17, pushed radially in the recess 21 at least partly into ball accommodating cavities 22 inside the driver 9 and being, by the central ball 17, held in contact with an inside 9a of the driver 9 so that motion from the housing 2 is transferred by all the balls 17,20 to the driver 9.
  • the plunger 13 is axially moved inside the housing 2 in direction towards the first end 18 of the housing 2, a free end 14 of the plunger 13 passes an opening 28 in the seat 27 and pushes the central ball 17 to move from the middle, centre, position, in a direction opposite to the force from the spring 25, into the bottom cavity 24 in which the spring 25 and the central ball 17 are placed, giving the other balls 20 space to move away from the ball accommodating cavities 22 and the contact between the other balls 20 and the inside of the driver 9 ceases, and the turn-secured connection is released.
  • the other balls, the circumferential balls 20 leave their ball accommodating cavities 22 either by gravity, or when the housing 2 is turned in relation to the driver 9, forcing the balls 20 out of their accommodating cavities 22.
  • a sensor 29 may be provided in the housing 2 for detecting the amount of axially displacement of the plunger 13.
  • the sensor 29 is communicating with the drive means 10 which stops the axial movement of the plunger 13 when the central ball 17 reaches the bottom cavity 24 in the driver 9 and the spring 25 is compressed. It also stops the axial movement of the plunger 13 when it moves in the opposite direction when the central ball 17 reaches the seat 27 in the housing and the spring 25 is fully stretched.
  • the housing 2 is arranged with a flange 30 associated with the ball accommodating cavities 22 in which the balls 20 are located, and the driver 9 is arranged with a corresponding track 31 into which track the flange fits.
  • the two parts, the housing 2 and the driver 9, is rotationally attached to each other by the track 31 and the flange 30.
  • the housing 2 and the driver 9 may also be loosely fit to each other, and the two parts 2, 9 are held in place by the lock mechanism 4 when the locking device 1 is inserted into the lock mechanism 4.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
EP21214582.5A 2020-12-22 2021-12-15 Locking device Active EP4019719B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2051527A SE544858C2 (en) 2020-12-22 2020-12-22 Locking device with a plunger, a driver and a transmission construction with a central ball and two outer balls and cavities

Publications (3)

Publication Number Publication Date
EP4019719A1 EP4019719A1 (en) 2022-06-29
EP4019719B1 true EP4019719B1 (en) 2024-03-27
EP4019719C0 EP4019719C0 (en) 2024-03-27

Family

ID=79024472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21214582.5A Active EP4019719B1 (en) 2020-12-22 2021-12-15 Locking device

Country Status (2)

Country Link
EP (1) EP4019719B1 (sv)
SE (1) SE544858C2 (sv)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU621531A1 (ru) * 1975-01-14 1978-08-30 Olenskij Valerij Leonidovich Устройство дл креплени деталей
JP3331400B2 (ja) * 1993-01-22 2002-10-07 三信工業株式会社 舶用推進機の前後進切替え制御装置
DE10065155B4 (de) * 2000-12-23 2005-11-10 C. Ed. Schulte Gmbh Zylinderschlossfabrik Kupplungsanordnung in einem Schließzylinder
EP2570574B1 (en) * 2007-02-08 2014-09-17 Knock N'Lock Ltd. Solenoid operated electromechanical lock
SE0702814L (sv) * 2007-12-18 2008-10-21 Assa Oem Ab Handtagsanordning
IT1400723B1 (it) * 2010-07-07 2013-06-28 Giussani Tech S P A Serratura elettronica di tipo preferibilmente programmabile.
GB2484110A (en) * 2010-09-30 2012-04-04 Magnet Schultz Ltd A deadlocking bolt mechanism
DK2860331T3 (en) * 2013-10-08 2016-11-28 Assa Oem Ab Handle device.
WO2016138224A1 (en) * 2015-02-25 2016-09-01 Triteq Lock And Security Llc Lock
DE102015105412B3 (de) * 2015-04-09 2016-07-07 Assa Abloy Sicherheitstechnik Gmbh Schließzylinder
CN108252573A (zh) * 2018-03-28 2018-07-06 广东名门锁业有限公司 一种带语音提示功能的指纹执手锁
CN108386077A (zh) * 2018-05-08 2018-08-10 中山市基信锁芯有限公司 一种电子锁芯

Also Published As

Publication number Publication date
SE2051527A1 (en) 2022-06-23
SE544858C2 (en) 2022-12-13
EP4019719C0 (en) 2024-03-27
EP4019719A1 (en) 2022-06-29

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