Title:
CYLINDER LOCK
Document Type and Number:
WIPO Patent Application WO/2000/014367
Kind Code:
A1
Abstract:
A cylinder lock consists of a cylinder core (2), a lock housing (3) and tumbler pins (1). Waisted portions (5) are formed on the side of the tumbler pins (1). A side bar (10) and lugs (11) in a groove (8) are extended axially in a peripheral part of the cylinder core (2), springs (6) are on the end opposite to the key insertion end of the pins (1), other springs are provided on both sides of the side bar (10), there is a recess (9) at a point corresponding to the groove (8) in the lock housing (3), at least two waisted portions (5) are formed on the pins (1), the waisted portions (5) at least consists of one waisted portion (5) and one waisted portion (4) which is shallower than the portion (5).
Inventors:
PAN ZHENHUA (CN)
Application Number:
PCT/CN1999/000137
Publication Date:
March 16, 2000
Filing Date:
September 06, 1999
Export Citation:
Assignee:
BEIJING LIANGZI LOCKS INDUSTRY (CN)
PAN ZHENHUA (CN)
PAN ZHENHUA (CN)
International Classes:
E05B27/00; E05B27/10; (IPC1-7): E05B27/00
Domestic Patent References:
| WO1987004749A1 | 1987-08-13 |
Foreign References:
| CN2284831Y | 1998-06-24 | |||
| US4356713A | 1982-11-02 | |||
| US5640865A | 1997-06-24 | |||
| US5421179A | 1995-06-06 | |||
| CN1221064A | 1999-06-30 | |||
| US5375444A | 1994-12-27 | |||
| US3499302A | 1970-03-10 |
Attorney, Agent or Firm:
SHENYANG PATENT AGENCY (No. 14 Zhongjie Road Shenhe District Shenyang 1, CN)
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