Lock

Details Lock Lock

E - Fixed Constructions

05

B

E05B 27/04 (2006.01) E05B 27/00 (2006.01)

Patent

CA 2298152

The structure of a lock, wherein, a plurality of receiving holes and alignment holes are provided in and by the central keyhole of a lock core to receive therein a plurality of juxtaposing and integrally connected pushing pins and alignment pins. The lock core has on the surface thereof a longitudinal slit in communication with the alignment holes and for receiving an engaging strip. An engaging groove is provided on the inner wall of a cylinder mating with the engaging strip for movably receiving the latter. The lock is characterized by that: the pushing pins and alignment pins are integrally and parallelly connected in pairs, each pushing pin is provided on the bottom thereof with a recess to receive a spring. The alignment pins have on the shanks thereof engaging holes located in different levels. When a key enters the keyhole to displace the pushing pins and alignment pins, the engaging hole in each alignment pin is aligned respectively with the longitudinal slit on the lock core to insert the engaging strip into a long groove formed from the aligned engaging holes, hence the lock core can be rotated in the cylinder for unlocking.

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