초록 ▼

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 gea

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.

대표청구항 ▼

[ We claim:] [1.] An electronic combination lock comprising:a dial cam fixedly attached to a manually rotatable input;a lock bolt;a plurality of gear teeth disposed on said dial cam;a gear drive meshing with said gear teeth;said lock bolt comprising a rack disposed for meshing engagement with said g

[ We claim:] [1.] An electronic combination lock comprising:a dial cam fixedly attached to a manually rotatable input;a lock bolt;a plurality of gear teeth disposed on said dial cam;a gear drive meshing with said gear teeth;said lock bolt comprising a rack disposed for meshing engagement with said gear drive; anda slide displaceable by a member on said gear drive, said slide disposed in blocking relation to said bolt in a first position and disposed in a position permitting bolt movement in a second position.