WO2021221549A1 - Cadenas - Google Patents

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Publication number
WO2021221549A1
WO2021221549A1 PCT/SE2021/050380 SE2021050380W WO2021221549A1 WO 2021221549 A1 WO2021221549 A1 WO 2021221549A1 SE 2021050380 W SE2021050380 W SE 2021050380W WO 2021221549 A1 WO2021221549 A1 WO 2021221549A1
Authority
WO
WIPO (PCT)
Prior art keywords
locking
shackle
padlock
lock core
ball
Prior art date
Application number
PCT/SE2021/050380
Other languages
English (en)
Inventor
Magnus Nilsson
Johan Hörberg
Original Assignee
Swedlock 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 Swedlock Ab filed Critical Swedlock Ab
Priority to EP21796755.3A priority Critical patent/EP4143405A4/fr
Publication of WO2021221549A1 publication Critical patent/WO2021221549A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B67/00—Padlocks; Details thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B67/00—Padlocks; Details thereof
    • E05B67/06—Shackles; Arrangement of the shackle
    • E05B67/063—Padlocks with removable shackles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/0053—Other details of locks; Parts for engagement by bolts of fastening devices means providing a stable, i.e. indexed, position of lock parts
    • E05B15/006—Spring-biased ball or roller entering a notch
    • 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
    • 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
    • E05B63/14—Arrangement of several locks or locks with several bolts, e.g. arranged one behind the other
    • E05B63/143—Arrangement of several locks, e.g. in parallel or series, on one or more wings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B67/00—Padlocks; Details thereof
    • E05B67/06—Shackles; Arrangement of the shackle
    • E05B67/22—Padlocks with sliding shackles, with or without rotary or pivotal movement
    • E05B67/24—Padlocks with sliding shackles, with or without rotary or pivotal movement with built- in cylinder locks
    • 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
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0084—Key or electric means; Emergency release
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B35/00—Locks for use with special keys or a plurality of keys ; keys therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/40—Portable
    • Y10T70/413—Padlocks

Definitions

  • the present invention relates to a padlock comprising a lock body, a shackle having two shackle legs, a locking mechanism for locking the shackle to the lock body, a selectively rotatable lock core, wherein said lock core is arranged to operate said locking mechanism for locking and unlocking the padlock.
  • the present invention also relates to a replaecable padlock shackle.
  • US 8,904,833 shows a padlock which includes a lock body, a shackle having two legs and a locking mechanism for locking the shackle to the lock body.
  • the locking mechanism comprises a rotatable cam and two locking balls.
  • the padlock is in locked status, the locking balls are engaged with notches of the first and second shackle legs.
  • the cam is rotated to a position where the two locking balls are located corresponding to recesses formed in the cam, so that the locking balls are able to be located in the recesses, and the shackle can be pulled upward until the first shackle leg is completely removed from the lock body.
  • the shackle is replaceable by use of a tool.
  • this padlock may be considered bulky. Also, replacement of the shackle may be considered cumbersome.
  • An object of the present invention is to provide a compact padlock.
  • Another object of the present invention is to provide a compact padlock that can be operated independently by two different keys.
  • a padlock comprising a lock body, a shackle having two shackle legs, a locking mechanism for locking the shackle to the lock body, a selectively rotatable lock core, wherein said lock core is arranged to operate said locking mechanism for locking and unlocking the padlock, wherein said locking mechanism comprises at least three locking elements which, when the locking mechanism is in a locked state, are disposed side by side in a first direction extending between a first locking element recess formed in the first shackle leg and a second locking element recess formed in the second shackle leg, said padlock further comprising a rotatable member being attached to said lock core and comprising a retaining portion, which is configured to retain a first locking element of the locking mechanism in a locking position when said lock core is situated in a first lock core position, and a release cavity which is configured to, upon rotation of said lock core from its lock core position
  • a compact padlock is provided, since the locking element is arranged to be moved in a second direction upon unlocking.
  • the retaining portion of the rotatable member only need to, in a locked state, support the first locking element to prevent it from moving in the second direction and do not need to block the locking elements from lateral displacement, which enables a compact solution.
  • a compact solution as seen in the first direction is provided.
  • the first locking element In the locked state the first locking element thus itself holds the other locking elements in place and prevents them from leaving their respective locking recesses.
  • a padlock with a high level of security is enabled, since unlocking movement of each of said locking elements is mechanically blocked by the retaining portion of the rotatable member.
  • said release cavity is configured to, upon rotation of said lock core from its first lock core position to its second lock core position, completely receive said first locking element, which provides for a very compact solution.
  • said second direction is orthogonal to said first direction.
  • first direction corresponds to a horizontal direction and the second direction corresponds to a vertical direction.
  • Each of said locking elements is a ball.
  • said lock core form part of an electromechanical lock.
  • an electromechanical lock may be configured to be operated by a programmable key, in the form of a physical programmable key configured to be inserted into a key receptacle of the electromechanical lock cylinder, or in the form of a mobile device, such as a mobile phone, which mobile device is configured to communicate with a lock core rotation device of the electromechanical lock.
  • said rotatable member comprises a guiding surface which is configured to, upon rotation of said lock core, move the first locking ball from its non-locking position to its locking position.
  • said padlock further comprises a release member which is arranged to apply a force on said first locking element, which force, upon rotation of the rotatable member acts to initiate movement of said first locking element into said release cavity.
  • said release member comprises a spring-biased element and preferably a spring-biased ball.
  • said release member is a leaf spring.
  • at least one release member forms a positioning element configured to, when the first locking ball is situated in its locking position, hold the first locking element in an offset position relative to the other locking elements.
  • the release member is a non-movable member which holds the first locking element pre-positioned in such a position that movement thereof is initiated upon rotation of the first lock core.
  • the non movable member thus forms a static member of the padlock.
  • the non movable release member may be formed integral with or secured to the lock body.
  • the retaining portion of the rotatable member may then, if the retaining portion is flat, be arranged such that the first locking ball is situated vertically below the other locking balls, i.e. in an offset position, as seen when the padlock is situated in an upright position, i.e. in a position in which the visible portion of shackle is located vertically above the lock body.
  • the retaining portion may be formed with a recess, the depth of which is adapted to hold the first locking ball in such an offset position.
  • said locking mechanism comprises at least five locking elements which, when the locking mechanism is in a locked state, are disposed side by side in said first direction, and said padlock further comprising a second selectively rotatable lock core, arranged to independently operate said locking mechanism for locking and unlocking the padlock, and a second rotatable member being attached to said second lock core and comprising a retaining portion, which is configured to retain a second locking element of the locking mechanism in a locking position when the second lock core is in a first lock core position, and a release cavity which is configured to, upon rotation of the second lock core from the first lock core position to a second lock core position, receive said second locking element, wherein said second rotatable member is configured to allow movement of said second locking element in the second direction from its locking position to a non-locking position in which the shackle is disengaged from the lock body, thereby allowing withdrawal of the shackle.
  • a first opening device such as a programmable key in the form of a physical key or in the form of a mobile device, may operate the first locking device and a second opening device, such as a mechanical key, may operate the second locking device.
  • the padlock may thus be unlocked by a key inserted in the key receptacle of a first lock or by a key inserted in the key receptacle of a second lock.
  • a padlock that is possible to independently operate with two different keys is thus achieved.
  • each rotatable member provides for a robust and reliable operation of the locking mechanism.
  • said first shackle leg is formed with a circumferential groove, a first recessed portion between the first locking element recess and the circumferential groove, and a second recessed portion which extends from said circumferential groove and terminates at the outermost part of the free end of said second shackle leg.
  • the second recessed portion permits the shackle to be completely withdrawn from the lock body without the use of a tool.
  • a replacement shackle may e.g. be a shackle providing larger clearance between the body and the shackle. The same lock body may thus be used together with shackles having different clearance between the shackle and the lock body.
  • a padlock shackle comprising a first shackle leg and a second shackle leg, wherein the first shackle leg is formed with a first locking element recess, a circumferential groove and a first recessed portion therebetween, and wherein the first shackle leg is formed with a second recessed portion which extends from said circumferential groove and terminates at the outermost portion of the free end of said first shackle leg.
  • the first recessed portion and the second recessed portion are thus situated on opposite sides of the circumferential groove as seen in the longitudinal direction of the shackle leg.
  • the padlock body can be inserted into a padlock body and used therewith.
  • the second recessed portion permits the shackle to be easily inserted into a padlock body, which provides for easy and fast assembly of a padlock.
  • the second recessed portion also permits the shackle to be completely withdrawn from a lock body to which it is connected.
  • the first recessed portion is configured to, when the padlock shackle is connected to a padlock body, permit a biased connecting member, such as e.g. a spring-biased connecting ball, of a shackle retaining device to be received in said circumferential groove.
  • a biased connecting member such as e.g. a spring-biased connecting ball
  • the connecting member is received in the circumferential groove, the shackle is permitted to rotate relative the padlock body.
  • the first recessed portion enables the shackle to be withdrawn a predetermined distance relative the padlock body to which it is connected and the circumferential groove enables rotation of the shackle relative the padlock body to which it is connected.
  • the second recessed portion allows the first shackle leg to be completely withdrawn from the lock body without the use of a tool. Replacement of such a shackle may thus be carried out in a tool-free manner.
  • This has the advantage that the shackle of a padlock can be replaced by a replacement shackle in a very easy and fast manner.
  • Such a replacement shackle may e.g. be a shackle providing larger clearance between the body and the shackle.
  • the same lock body my thus be used together with shackles having different clearance between the shackle and the lock body.
  • said first recessed portion and said second recessed portion are situated on opposite sides of said first shackle leg.
  • At least one of said release members comprises a magnetic element.
  • the depth to which the second recessed portion is recessed into the first shackle leg is preferably less than the depth of the circumferential groove and more preferably about half of the depth of the circumferential groove.
  • said second recessed portion is flat.
  • Figs. 1A-B are exploded views showing a padlock according to a first embodiment of the invention.
  • Fig. 2A is a partly cross-sectional perspective view and illustrates parts of the padlock shown in Figs. 1A-B.
  • Figs. 2B-C are partly cross-sectional perspective views and illustrate unlocking of the padlock using a programmable key.
  • Fig. 2D is a partly cross-sectional view and illustrates a shackle retaining device of the padlock shown in Figs. 1 A-B.
  • Fig. 2E is a partly cross-sectional perspective view and illustrates a locking of the padlock shown in Figs. 1A-B with the programmable key.
  • Fig. 3A is a partly cross-sectional perspective view and illustrates parts of the padlock shown in Figs. 1A-B.
  • Figs. 3B-C are partly cross-sectional perspective views and illustrate unlocking of the padlock using a mechanical key.
  • Figs. 4A-B are partly cross-sectional perspective views and illustrate removal of the shackle of the padlock shown in Figs. 1 A-B.
  • Fig. 4C is a partly cross-sectional perspective view and illustrates a replacement shackle and insertion of the replacement shackle into to the lock body of the padlock shown in Figs. 1 A-B.
  • Fig. 5 is a partly cross-sectional perspective view and illustrates a padlock according to a second embodiment of the present disclosure.
  • Figs. 1 A-B illustrate a padlock 1 according to a first embodiment of the invention.
  • the padlock 1 comprises a lock body 3, formed by a first lock body part 3a and a second lock body part 3b, a shackle 5 having a first shackle leg 7 and a second shackle leg 9.
  • the first shackle leg 7 is longer than the second shackle leg 9.
  • the lock body 3 has a first shackle leg bore 11 for receiving the first shackle leg 7 and a second shackle leg bore 13 for receiving the second shackle leg 9.
  • the first lock body part 3a further has a first locking device bore 15 for receiving a first locking device and a second locking device bore 17 for receiving a second locking device.
  • the first locking device is an electromechanical lock 19
  • the second locking device is a mechanical cylinder lock which comprises a mechanical lock cylinder 21.
  • the electromechanical lock 19 comprises a first lock core 25 which is received in the first locking device bore 15.
  • the first lock core 25 is selectively rotatable with respect to a combination of the first lock body part 3a and a locking device part 23 in a known manner.
  • the first lock core 25 is provided with a key receptacle 27 for receiving a programmable key.
  • a first rotatable member 29 is attached to the first lock core 25.
  • the first rotatable member 29 comprises a first retaining portion 31 and a first release cavity 33, as illustrated in Fig. 1 A.
  • the first rotatable member 29 further comprises a first guiding surface 34 which is disposed in connection to the first release cavity 33.
  • the first rotatable member 29 is attached to the first lock core 25 so as to rotate therewith upon rotation thereof.
  • the guiding surface 34 raises from the bottom surface of the first release cavity 33 to the first retaining portion 31.
  • the first guiding surface 34 connects the the bottom surface of the first release cavity 33 and retaining surface of the first retaining portion 31.
  • the mechanical lock cylinder 21 comprises a lock cylinder body 35 and a second lock core 37 located within the lock cylinder body 35.
  • the second lock core 37 is provided with a key receptacle 38 for receiving a key and is selectively rotatable with respect to the lock cylinder body 35.
  • a second rotatable member 39 is attached to the second lock core 37.
  • the second rotatable member 39 comprises a retaining portion 41 and a release cavity 43, as illustrated in Fig. 1 A.
  • the second rotatable member 39 further comprises a second guiding surface 40 which is disposed in connection to the second release cavity 43.
  • the second rotatable member 39 is attached to the second lock core 37 so as to rotate therewith upon rotation thereof.
  • the second guiding surface 40 raises from the bottom of the second release cavity 43 to the second retaining portion 41.
  • the second guiding surface 40 connects the the bottom surface of the second release cavity 43 and the retaining surface of the second retaining portion 41.
  • the padlock 1 further comprises a locking mechanism 10 for locking the shackle 5 to the lock body 3 in order to place the padlock 1 in a locked state.
  • the locking mechanism 10 comprises a first locking element recess 45, which is formed in the first shackle leg 7, a second locking element recess 47, which is formed in the second shackle leg 9, and locking elements 49 in the form of locking balls 51, 53, 55, 57, 59.
  • a first locking ball 51 is arranged to be supported by the first retaining portion 31 when the first lock core 25 is situated in a first lock core position.
  • a second locking ball 53 is arranged to be supported by the second retaining portion 41 when the second lock core 37 is situated in a first lock core position.
  • both lock cores 25, 37 are situated in their respective first lock core positions, as illustrated in Fig. 2A, the padlock 1 is in a locked state.
  • the locking balls 51, 53, 55, 57, 59 are disposed side by side in such a manner that adjacent locking balls are in contact with each other.
  • the locking balls 51 , 53, 55, 57, 59 are disposed side by side in a first direction extending between the first locking ball recess 45 and the second locking ball recess 47.
  • the padlock 1 is situated in an upright position the first direction corresponds to a horizontal direction.
  • a third locking ball 55 is arranged to be received in the first locking element recess 45 and engage the wall thereof.
  • a fourth locking ball 57 is arranged to be received in the second locking ball recess 47 and engage the wall thereof.
  • a fifth locking ball 59 is disposed between the first 51 and second 53 locking balls. The three intermediate locking balls 51, 53, 59 are configured to maintain the third locking ball 55 in the first locking ball recess 45 and the fourth locking ball 57 in the second locking ball recess 47 when the padlock 1 is in its locked state.
  • a locking ball cavity 61 is formed in the second lock body part 3b.
  • the locking ball cavity 61 is configured to receive the locking balls 51, 53, 55, 57, 59 of the locking mechanism 10.
  • the padlock 1 further comprises a shackle retaining device 63 for retaining a portion of the shackle 5 within the lock body 3 to maintain the shackle 5 connected to the lock body 3 when the padlock 1 is unlocked.
  • the retaining device 63 comprises a spring-biased connecting element, in the form of a spring-biased ball 65, which is received in a cavity 67 formed in the second lock body part 3b.
  • a compression spring 69 is arranged between the connecting element 65 and a support surface 71.
  • the support surface 71 is in this case formed by a plug 73 which is secured to the second lock body part 3b.
  • the connecting element 65 is arranged to be biased against a first flat portion 66 of the first shackle leg 7.
  • a circumferential groove 75 is formed.
  • the circumferential groove 75 is configured to receive the spring- biased ball 65 of the shackle retaining device 63 to allow rotation of the shackle 5 relative the lock body 3.
  • the first flat portion 66 which provides a bearing surface to the spring-biased ball 65 upon withdrawal of the shackle 5, extends from the first locking ball recess 45 to the circumferential groove 75.
  • the depth to which the first flat portion 66 is recessed in to the first shackle leg 7 is approximately the same as the depth of the circumferential groove 75.
  • a second flat portion 77 is formed at the free end 7a of the first shackle leg 7 .
  • the second flat portion 77 extends from the circumferential groove 75 and terminates at the outermost portion of the free end 7a.
  • the first flat portion 66 and the second flat portion 77 are formed on opposite sides of the first shackle leg 7.
  • the padlock 1 further comprises a first release arrangement 79 and a second release arrangement 81.
  • the first release arrangement 79 is received in a recess 83 formed in the second lock body part 3a at the bottom of the locking ball cavity 61 and the second release arrangement 81 is received in a second recess 85 formed in the second lock body part 3a at the bottom of the locking ball cavity 61.
  • the first release arrangement 79 comprises a release member, in the form of a spring-biased ball 87, as illustrated in the enlarged part of Fig. 2A.
  • the spring-biased ball 87 is arranged to apply a force on the first locking ball 51 and thereby press the first locking ball 51 against the retaining portion 31 of the first rotatable member 29.
  • the second release arrangement 81 comprises a release member, in the form of a spring-biased ball 89, as illustrated in the enlarged part of Fig. 3A.
  • the spring-biased ball 89 is arranged to apply a force on the second locking ball 53 and thereby press the third locking ball 53 against the retaining portion 41 of the second rotatable member 39.
  • the programmable key 91 which is used to operate the electromechanical lock 19, comprises an energy source, such as a battery, and a control unit powered by the energy source.
  • the key 91 can access a cloud based or locally hosted access control system which transfer authorization data to the key or log information from the key 91 to the access control system via internet and a synchronization unit or via a mobile communication system such as the GSM net and a mobile device, such as a mobile phone.
  • the mobile device is the key itself.
  • the key 91 access the synchronization unit or the mobile device by a physical contact, by near field communication, such as NFC, or by radio communication, such as Bluetooth.
  • the key 91 can store all data necessary to access at least one specific electromechanical lock 19, but cannot access any electromechanical locks for which it does not have the appropriate authorization data. Locking and unlocking of a lock using the programmable key 91 is rendered possible only if the programmable key is synchronized appropriately via the synchronization unit or a mobile device. Further, the programmable key 91 is provided with means by which electrical power, data and mechanical effort can be transmitted to the lock in a known manner.
  • the electromechanical lock 19 is configured to be powered by and communicate with the programmable key 91 upon the insertion of the key 91 in the key receptacle 27. To this end the electromechanical lock 19 comprises power receiving means, communication means, access control device for controlling access of a key 91 inserted in the key receptacle 27 and an electrical control unit.
  • Fig. 2A illustrates the padlock 1 in a locked state.
  • the third locking ball 55 engages the wall of the first locking ball recess 45 and the fourth locking ball 57 engages the wall of the second locking ball recess 47.
  • the first locking ball 51 is situated in a locking position, in which it is supported by the first retaining portion 31
  • the second locking ball 53 is situated in a locking position, in which it is supported by the second retaining portion 41.
  • the fifth locking ball 59 which is disposed between the first locking ball 51 and the second locking ball 53, prevents the other locking balls 55, 57, 59 from being displaced laterally.
  • the intermediate locking balls 51 , 53, 59 together prevent the third and fourth locking balls 55, 57 from being displaced from their respective locking ball recesses 45, 47.
  • the locking balls are disposed side by side in the first direction.
  • the first release cavity 33 is exposed to the first locking ball 51.
  • the first locking ball 51 is free to move in a second direction, which is orthogonal to the first direction, from its locking position into the first release cavity 33, as schematically illustrated by arrow B in Fig. 2B.
  • the first locking ball 51 is forced to move away from its locking position by the releasing member 87, as illustrated by arrows C and D in the enlarged part of Fig. 2B.
  • the movement of the first locking ball 51 away from its locking position is thus initiated by the spring-biased ball 87 which exerts a force on the first locking ball 51.
  • the third locking ball 55 and the fourth locking ball 57 are then free to move out of the first locking element recess 45 and the second locking element recess 47, respectively, as illustrated by arrows E and F in Fig. 2C, which allows the shackle 5 from to be withdrawn, as illustrated by arrows G in Fig. 2C, to place the padlock 1 in an unlocked state.
  • the shackle 5 is withdrawn until the spring-biased ball 65 is received in the circumferential groove 75, as best illustrated in Fig. 2D.
  • the second shackle leg 9 is completely withdrawn from the lock body 3 while the first shackle leg 7 is still within the shackle leg bore 11 and connected to the lock body 3 by the shackle retaining device 63.
  • the first lock core 25 is thus rotated to permit movement of the locking balls 51, 53, 55, 57, 59 for disengaging the shackle 5, thereby permitting movement of the shackle 5 in a direction away from the lock body 3 and removal of the shorter leg 5 from the corresponding shackle leg bore 13 for placing the padlock 1 in an unlocked state.
  • the locking mechanism 10 thus comprises locking elements, in the form of locking balls 51 , 53, 55, 57, 59, each of which is movable between a locking position, in which it, together with the other locking elements, prevents the shackle 5 from being withdrawn from the lock body 3, and a releasing position in which it perm is the shackle 5 from being withdrawn from the lock body 3.
  • the third locking ball 55 is moved into the first locking ball recess 45
  • the fourth locking ball 57 is moved into the second locking ball recess 47
  • the intermediate locking balls 51 , 53, 59 are moved into positions in which they together prevent the third 55 and fourth 57 locking balls from being displaced from their respective locking ball recesses 45, 47.
  • FIG. 3A illustrates the padlock 1 in the locked state, which has been described hereinbefore with reference to Fig. 2A.
  • the first release cavity 43 is exposed to the second locking ball 53.
  • the second locking ball 53 is free to move in a second direction, which is orthogonal to the first direction, from its locking position into the second release cavity 43, as schematically illustrated by arrow K in Fig. 3B.
  • the second locking ball 53 is forced to move away from its locking position by the releasing member 89, as illustrated by arrows L and M in the enlarged part of Fig. 3B.
  • the movement of the second locking ball 53 away from its locking position is thus initiated by the spring-biased ball 89 which exerts a force on the second locking ball 53.
  • the third locking ball 55 and the fourth locking ball 57 are then free to move out of the first locking cavity 45 and the second locking cavity 47, respectively, as illustrated by arrows N and 0 in Fig. 3C, which allows the shackle 5 from to be withdrawn, as illustrated by arrows P in Fig. 3C, to place the padlock 1 in an unlocked state.
  • the shackle 5 is withdrawn until the spring-biased ball 65 is received in the circumferential groove 75.
  • the second shackle leg 5 is completely withdrawn from the lock body 3 while the first shackle leg 7 is still within the shackle leg bore 11 and connected to the lock body 3 by the shackle retaining device 63.
  • each locking ball 51, 53, 55, 57, 59 is forced into its respective locking position, i.e.
  • the third locking ball 55 is moved into the first locking ball recess 45, the third locking ball 57 is moved into the second locking ball recess 47 and the intermediate locking balls 51 , 53, 59 are moved into positions in which they together prevent the third 55 and fourth 57 locking balls from being displaced from their respective locking ball recesses 45, 47.
  • the first rotatable member 29 may thus be operated by an appropriate key inserted into the key receptacle of the electromechanical lock and the second rotatable member 39 may be operated by an appropriate key inserted into the key receptacle of the mechanical lock cylinder 21.
  • Each of the lock cores 25, 37 is thus arranged to independently operate the locking mechanism for locking and unlocking the padlock 1.
  • the release cavities 33, 43 thus enables the third locking ball 55 and the fourth locking ball 57 to be moved from the first locking ball recess 45 and the second locking ball recess 47, respectively and thereby the locking mechanism to be moved to an unlocking position in which it permits withdrawal of the shackle 5 from the lock body 3.
  • the first shackle leg 7 is provided with a second flat portion 77 that serves to facilitate replacement of a shackle 5 by a replacement shackle.
  • the second flat portion 77 extends from the circumferential groove 75 to the outermost portion of the free end 7a of the second shackle leg 7.
  • the depth to which the second flat portion 77 is recessed in to the first shackle leg 7 is less than the depth of the circumferential groove 75. This provides for some resistance to withdrawal of the shackle 5. A predetermined force is thus needed to withdraw the shackle completely in order to secure that the shackle is not detached from the lock body in an undesirable manner.
  • the depth to which the second flat portion 77 is recessed in to the first shackle leg 7 is about half of the depth of the circumferential groove 75.
  • first flat portion 66 illustrated in Fig. 1 A
  • second flat portion 77 are situated on opposite sides of the first shackle leg 7, as best illustrated in the enlarged part of Fig. 4A.
  • a shackle 5 to be replaced is rotated as illustrated by arrow Q in Fig. 4A.
  • the shackle 5 is rotated, with the spring-biased connecting ball 65 disposed in the circumferential groove 75, 180° to a shackle changing position.
  • the connecting element 65 faces the side of the shackle leg 7 that has the second flat portion 77.
  • Flence by rotating the shackle 180°, the second flat portion 77 is exposed to the connecting ball 65.
  • the shackle 5 is permitted to be completely withdrawn from the lock body 3, as illustrated by arrow R in Fig. 4B.
  • the connecting element 65 abuts the second flat portion 77, as illustrated in the enlarged part of Fig. 4B.
  • the longer shackle leg 95 of a replacement shackle 97 e.g. a shackle with more clearance between the shackle 97 and the lock body 3 can be inserted into the first shackle leg bore 11 , as illustrated by arrows T in Fig. 4C, and used together with the lock body 3 in the manner previously described for the replaced shackle 5.
  • a replacement shackle 97 e.g. a shackle with more clearance between the shackle 97 and the lock body 3
  • the replacement shackle 97 it is oriented such that the second flat surface 99 of the longer shackle leg 95 faces the spring-biased ball 65 of the shackle retaining device 63.
  • the second embodiment differs from the first embodiment in that the padlock 201 comprises one single lock core 25 instead of two lock cores.
  • the single lock core 25 is selectively rotatable with respect to a combination of a first lock body part 203a and a locking device part 23, illustrated in Fig. 1A.
  • the lock core 25, which is configured to receive a physical programmable key 91 , form part of an electromechanical lock 19.
  • a rotatable member 29 is secured to the lock core 25 so as to rotate therewith upon rotation thereof.
  • the rotatable member 29 comprises a first retaining portion 31 and a release cavity 33 and a guiding surface 34 which is disposed in connection to the first release cavity 33.
  • the padlock 201 differs in that the locking mechanism for locking the shackle 5 to the lock body 203 comprises only three locking elements, in the form of three locking balls 51 , 55, 57.
  • the locking mechanism thus comprises a first locking element recess 45, which is formed in the first shackle leg 7, a second locking element recess 47, which is formed in the second shackle leg 9, and locking elements in the form of three locking balls 51 , 55, 57.
  • a first locking ball 51 is arranged to be supported by the retaining portion 31 of the rotatable member 29 when the lock core 25 is in a first lock core position. When the lock core 25 is in its first lock core position the padlock 201 is in a locked state.
  • the locking balls are disposed side by side in a first direction extending between the first locking element recess 45 and the second locking element recess 47 in such a manner that the first locking ball 51 is in contact with each of the second locking ball 55 and the third locking ball 57.
  • a second locking ball 55 is arranged to be received in the first locking element recess 45 and engage the wall thereof and a third locking ball 57 is arranged to be received in the second locking ball recess 47 and engage the wall thereof.
  • the first locking ball 51 i.e. the intermediate locking ball, is configured to maintain the second locking ball 55 in the first locking ball recess 45 and the third locking ball 57 in the second locking ball recess 47 when the padlock 1 is in its locked state.
  • the padlock may be provided with a movable release member.
  • a release member may instead comprise a non-movable member configured to hold a locking ball in an offset position and, upon rotation of a lock core, act to initiate movement of the locking element into the release cavity of the corresponding rotatable member.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)

Abstract

La présente invention concerne un cadenas (1) comprenant un corps de verrou (3), un arceau (5), un mécanisme de verrouillage (10) de verrouillage de l'arceau (5) au corps de verrou (3) et un noyau de verrou rotatif de manière sélective (25) agencé pour faire fonctionner ledit mécanisme de verrouillage (10) et comprenant au moins trois éléments de verrouillage (51, 53, 55, 57, 59) qui, lorsque le mécanisme de verrouillage est dans un état verrouillé, sont alignés dans une première direction. Le cadenas comprend en outre un élément rotatif (29) fixé audit noyau de verrou (25) et comprenant une partie de retenue (31). La cavité de libération (33) est configurée pour permettre le mouvement du premier élément de verrouillage (51) dans une seconde direction, qui est différente de la première direction, d'une position de verrouillage à une position de non-verrouillage dans laquelle l'arceau (5) est dégagé du corps de verrouillage (3), ce qui permet ainsi son retrait.
PCT/SE2021/050380 2020-04-27 2021-04-26 Cadenas WO2021221549A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21796755.3A EP4143405A4 (fr) 2020-04-27 2021-04-26 Cadenas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE2050477A SE2050477A1 (en) 2020-04-27 2020-04-27 Padlock
SE2050477-5 2020-04-27

Publications (1)

Publication Number Publication Date
WO2021221549A1 true WO2021221549A1 (fr) 2021-11-04

Family

ID=78083406

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2021/050380 WO2021221549A1 (fr) 2020-04-27 2021-04-26 Cadenas

Country Status (3)

Country Link
EP (1) EP4143405A4 (fr)
SE (1) SE2050477A1 (fr)
WO (1) WO2021221549A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US912773A (en) * 1908-08-12 1909-02-16 Yale & Towne Mfg Co Duplex or master-key lock.
US2460615A (en) * 1945-06-07 1949-02-01 Yale & Towne Mfg Co Removable core lock
US4158952A (en) * 1978-07-14 1979-06-26 Medeco Security Locks, Inc. Padlock with removable top closure
US20030196461A1 (en) * 2002-04-17 2003-10-23 Gaieter Liou Padlock
US20050199019A1 (en) * 2004-03-12 2005-09-15 Master Lock Company Remote control security device
US20070204664A1 (en) * 2006-03-02 2007-09-06 Xiong Wei Tang Padlock with a quickly changeable shackle and padlock with a freely convertible deadlock mechanism
CN105178740A (zh) * 2015-10-15 2015-12-23 温州市法兰特锁业有限公司 一种挂锁

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX2013000526A (es) * 2010-07-15 2013-03-22 Master Lock Co Candado.
JP2015067970A (ja) * 2013-09-26 2015-04-13 セイコークロック株式会社 電子錠

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US912773A (en) * 1908-08-12 1909-02-16 Yale & Towne Mfg Co Duplex or master-key lock.
US2460615A (en) * 1945-06-07 1949-02-01 Yale & Towne Mfg Co Removable core lock
US4158952A (en) * 1978-07-14 1979-06-26 Medeco Security Locks, Inc. Padlock with removable top closure
US20030196461A1 (en) * 2002-04-17 2003-10-23 Gaieter Liou Padlock
US20050199019A1 (en) * 2004-03-12 2005-09-15 Master Lock Company Remote control security device
US20070204664A1 (en) * 2006-03-02 2007-09-06 Xiong Wei Tang Padlock with a quickly changeable shackle and padlock with a freely convertible deadlock mechanism
CN105178740A (zh) * 2015-10-15 2015-12-23 温州市法兰特锁业有限公司 一种挂锁

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4143405A4 *

Also Published As

Publication number Publication date
SE543997C2 (en) 2021-10-26
SE2050477A1 (en) 2021-10-26
EP4143405A4 (fr) 2024-05-29
EP4143405A1 (fr) 2023-03-08

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