发明名称 |
Gear driven bolt withdrawal for an electronic combination lock |
摘要 |
A gear driven bolt withdrawal mechanism for an electronic lock is disclosed wherein an electromagnetic device such as an electromagnetic device displaces a partial gear into a position to be engaged by a manual drive. The partial gear, in turn, drives subsequent gears in a gear train to engage a gear with teeth on a rack attached to or a part of the bolt of the lock. The restoration of the bolt is ensured by a physical engagement between a portion of the drive cam and a portion of the bolt to force the bolt to its extended position upon locking; a displaceable slide is disposed in blocking relationship to the bolt whenever the bolt is fully extended to prevent end pressure from displacing the bolt without entry of a valid combination into the electronic controls of the lock.
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申请公布号 |
US5881589(A) |
申请公布日期 |
1999.03.16 |
申请号 |
US19970873332 |
申请日期 |
1997.06.12 |
申请人 |
MAS-HAMILTON GROUP |
发明人 |
CLARK, THOMAS R.;DAWSON, GERALD L.;EVANS, WALTER R.;REDDEN, JAMES P. |
分类号 |
E05B47/00;E05B49/02;G07C9/00;(IPC1-7):E05B49/02 |
主分类号 |
E05B47/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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