GB1496126A - Double key axial split-pin tumbler-type lock - Google Patents

Double key axial split-pin tumbler-type lock

Info

Publication number
GB1496126A
GB1496126A GB39723/75A GB3972375A GB1496126A GB 1496126 A GB1496126 A GB 1496126A GB 39723/75 A GB39723/75 A GB 39723/75A GB 3972375 A GB3972375 A GB 3972375A GB 1496126 A GB1496126 A GB 1496126A
Authority
GB
United Kingdom
Prior art keywords
lock
key
spindle
tumbler
sleeve
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
Application number
GB39723/75A
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.)
Chicago Lock Co
Original Assignee
Chicago Lock Co
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 Chicago Lock Co filed Critical Chicago Lock Co
Publication of GB1496126A publication Critical patent/GB1496126A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E05B27/02—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key
    • E05B27/08—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key arranged axially
    • E05B27/083—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in operated by the edge of the key arranged axially of the split-pin tumbler type
    • 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
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7446—Multiple keys
    • Y10T70/7452—Selective shutout type
    • 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
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7446—Multiple keys
    • Y10T70/7458—Interdependent
    • 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
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7588—Rotary plug
    • Y10T70/7593—Sliding tumblers

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

1496126 Axial pin-tumbler lock CHICAGO LOCK CO 29 Sept 1975 [11 Feb 1975] 39723/75 Heading E2A An axial split-pin tumbler lock is constructed for use with two keys, key 1 being the true unlocking key and key 2 a "prevent" key which is used to turn the lock to such a position that one or more tumblers are inaccesible for picking and from which keys 2 and 1 must be used in that order to unlock the lock. The lock comprises a cylinder 30 within which is located a three part plug comprising a rear sleeve part 50, fixed to the cylinder, a rotatable intermediate spindle part 54 including an axial lock shaft 60 extending through the sleeve 50 to the bolt 36 and a rotatable front drive part 56 mounted by shaft 68 in the spindle part and bearing an axial post 70 having a key-engaging groove 72 at the front. Each plug portion has a plurality (e.g. seven) axial bores which are so arranged that in a first position in which the lock is fastened, they are all aligned but that in a second position, obtained by rotating the drive portion 56 relative to the portions 50 and 54, some bores are continuous through all three portions but some are only aligned in the sleeve 50 and spindle 54. Each bore contains a pin-tumbler assembly 34, comprising a spring 82 and pins 84, 86 and 88. In the first locking position (Fig. 6 not shown) these pins lock drive portion 56 and spindle 54 to the fixed sleeve 50. Insertion of key 1 (Fig. 7) adjusts the tumbler pins so that spindle 54 is locked to drive portion 56 but free of sleeve 50 so that the key can rotate these two together and undo bolt 36. Key 1 cannot be removed in the unlocking position since lug 15 is held behind flange 41. Key 2 is cut so that its insertion (Fig. 8) depresse the tumbler pins to the extent required to free drive portion 56 from the spindle 54, so allowing it to rotate on its own to a position in which at least one bore is blocked by an undrilled portion 80 of drive portion 56 and is thus not accessible for picking whilst others are continuous through all three portions so that removal of the key 2 - with lug 25 passing through slot 43 - allows the tumblers to lock all plug portions together. Both keys are then needed to unlock the lock.
GB39723/75A 1975-02-11 1975-09-29 Double key axial split-pin tumbler-type lock Expired GB1496126A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US548921A US3916657A (en) 1975-02-11 1975-02-11 Double key axial split-pin tumbler-type lock

Publications (1)

Publication Number Publication Date
GB1496126A true GB1496126A (en) 1977-12-30

Family

ID=24190935

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39723/75A Expired GB1496126A (en) 1975-02-11 1975-09-29 Double key axial split-pin tumbler-type lock

Country Status (5)

Country Link
US (1) US3916657A (en)
JP (1) JPS5250598B2 (en)
CA (1) CA982839A (en)
DE (1) DE2544692C3 (en)
GB (1) GB1496126A (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4104897A (en) * 1975-06-25 1978-08-08 Freedman Gerald A Tumbler lock
US4147905A (en) * 1977-05-17 1979-04-03 Chicago Lock Co. Sleeve and terminal holder assembly for an axial split-pin tumbler-type switch lock mechanism
US4112820A (en) * 1977-11-23 1978-09-12 Nordica International, Inc. Tamper-proof axial tumbler type lock
US4191036A (en) * 1978-01-16 1980-03-04 Chicago Lock Co. Axial split-pin tumbler-type lock mechanism and key therefor
JPS5587217U (en) * 1978-12-11 1980-06-16
US4351171A (en) * 1980-07-01 1982-09-28 China National Light Industrial Products Import Export Corporation, Shantung Branch Sequential locking two key lock
US4653297A (en) * 1982-10-01 1987-03-31 Moorhouse John H Interior barrier lock structure
JPS59217879A (en) * 1983-05-21 1984-12-08 タキゲン製造株式会社 Lock apparatus for two-operation-bundle control
US4641507A (en) * 1984-02-06 1987-02-10 W. Stuart McCloy, Jr. Lock mechanism
US4729327A (en) * 1984-02-06 1988-03-08 Demonbreun Betty J Security box protection means
US5018376A (en) * 1989-03-27 1991-05-28 Lee David G High security axial pin tumbler lock
EP0521854A1 (en) * 1990-03-19 1993-01-13 LEE, David G. Improved high security axial pin tumbler lock
US5105637A (en) * 1990-10-05 1992-04-21 Parkway Machine Corporation Convertible barrel lock
DE19739036A1 (en) * 1997-09-05 1999-03-18 Richard Hahn Cylinder lock for doors with housing containing locking mechanism
US6038898A (en) * 1998-01-06 2000-03-21 Compx International, Inc. Internally bitted key changeable, axial pin tumbler lock and compatible key
US5921118A (en) * 1998-01-23 1999-07-13 Yuan; Li Chi Shift lever lock structure of a car
US6499660B1 (en) * 2002-01-24 2002-12-31 John H. Moorhouse Optical security system
US7073708B2 (en) * 2002-01-24 2006-07-11 John H. Moorhouse Optical security system
US7108182B2 (en) * 2002-01-24 2006-09-19 John H. Moorhouse Optical security system
US7574882B2 (en) * 2006-11-02 2009-08-18 George Uliano Tubular radial pin tumbler lock
US7685854B2 (en) * 2008-01-30 2010-03-30 Forrest Xu Axial spring balancing pin tumbler lock
CN101566021B (en) * 2009-05-20 2011-09-14 宁波永发集团有限公司 Marble lock with double opening angles and safety lock structure with same
US20110072866A1 (en) * 2009-09-25 2011-03-31 Miko Lee Radial lock and key for the radial lock
US20110179834A1 (en) * 2010-01-25 2011-07-28 ACCO Brands Corporation Security apparatus including breakaway key
CN102839859A (en) * 2012-09-15 2012-12-26 新疆同心索科技有限公司 L-shaped axial spring lock cylinder and key
JP3224000U (en) 2016-12-08 2019-11-21 サウスコ，インコーポレイティド Latch with cover

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2009640A (en) * 1934-02-06 1935-07-30 American Hardware Corp Lock
US3473355A (en) * 1966-10-11 1969-10-21 Toshizumi Saito Two-key lock
US3541819A (en) * 1968-08-05 1970-11-24 Chicago Lock Co Tamper-proof axial tumbler lock
US3599456A (en) * 1970-04-13 1971-08-17 Bessim Bessim Lock mechanism
US3729964A (en) * 1971-06-21 1973-05-01 Proof Lock Int Inc Lock
US3875773A (en) * 1973-09-05 1975-04-08 Hudson Lock Inc Dual control lock

Also Published As

Publication number Publication date
US3916657A (en) 1975-11-04
JPS5250598B2 (en) 1977-12-26
DE2544692C3 (en) 1980-12-18
DE2544692B2 (en) 1980-04-30
CA982839A (en) 1976-02-03
DE2544692A1 (en) 1976-08-19
JPS5194399A (en) 1976-08-18

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee