FR2343109A1 - Silent action combination lock - has disc cam rotated to allow latch arm to fall into slots across number wheels - Google Patents

Silent action combination lock - has disc cam rotated to allow latch arm to fall into slots across number wheels

Info

Publication number
FR2343109A1
FR2343109A1 FR7701896A FR7701896A FR2343109A1 FR 2343109 A1 FR2343109 A1 FR 2343109A1 FR 7701896 A FR7701896 A FR 7701896A FR 7701896 A FR7701896 A FR 7701896A FR 2343109 A1 FR2343109 A1 FR 2343109A1
Authority
FR
France
Prior art keywords
wheels
combination lock
slots
fall
cross piece
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.)
Granted
Application number
FR7701896A
Other languages
French (fr)
Other versions
FR2343109B3 (en
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.)
Parma Antonio & Figli Sas
Original Assignee
Parma Antonio & Figli Sas
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 Parma Antonio & Figli Sas filed Critical Parma Antonio & Figli Sas
Publication of FR2343109A1 publication Critical patent/FR2343109A1/en
Application granted granted Critical
Publication of FR2343109B3 publication Critical patent/FR2343109B3/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • E05B37/04—Permutation or combination locks; Puzzle locks with tumbler discs on a single axis, all the discs being adjustable by rotating a shiftable knob

Landscapes

  • Support Devices For Sliding Doors (AREA)

Abstract

A combination lock is designed so that there is no noise as the number wheels are rotated, thus making theft correspondingly difficult. The wheels (11) are rotated until all the recesses (12) in them are in line at the top. A latch control arm (18) can then be released so that a cross piece (17) extending sideways is lowered into these recesses. The arm can then be slid back by rotating a special cam disc, pulling the latch blade (20) back to open the door. To lower the control arm, a button mounted on a spindle (10) passing through the wheels is pushed against a dished spring so that a cam disc (13) is pushed sideways. This allows the nose (22) of the cross piece to be disengaged from the edge (14) of the cam, and rest on a smaller diameter part (13), and the cross piece can then fit into the wheel recess. Further rotation of the cam disc allows the nose to fit into a groove in this smaller diameter part, so that the control arm is pulled back.
FR7701896A 1976-03-05 1977-01-24 Silent action combination lock - has disc cam rotated to allow latch arm to fall into slots across number wheels Granted FR2343109A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2090676A IT1056909B (en) 1976-03-05 1976-03-05 PERFECTED COMBINATION LOCK

Publications (2)

Publication Number Publication Date
FR2343109A1 true FR2343109A1 (en) 1977-09-30
FR2343109B3 FR2343109B3 (en) 1979-09-21

Family

ID=11173857

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7701896A Granted FR2343109A1 (en) 1976-03-05 1977-01-24 Silent action combination lock - has disc cam rotated to allow latch arm to fall into slots across number wheels

Country Status (2)

Country Link
FR (1) FR2343109A1 (en)
IT (1) IT1056909B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694670A (en) * 1984-12-31 1987-09-22 Jang Young H Combined key and combination lock
WO2012006860A1 (en) * 2010-07-10 2012-01-19 Song Zegui Combination bolt with codes used for lock
CN103790442A (en) * 2014-02-21 2014-05-14 宋泽贵 Lock password insertion pin allowed to be unlocked by password key

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4694670A (en) * 1984-12-31 1987-09-22 Jang Young H Combined key and combination lock
WO2012006860A1 (en) * 2010-07-10 2012-01-19 Song Zegui Combination bolt with codes used for lock
CN103790442A (en) * 2014-02-21 2014-05-14 宋泽贵 Lock password insertion pin allowed to be unlocked by password key

Also Published As

Publication number Publication date
IT1056909B (en) 1982-02-20
FR2343109B3 (en) 1979-09-21

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Legal Events

Date Code Title Description
ST Notification of lapse