Patent ID: 7836739
Filing Date: 2010-11-23
Classification: E05B,Y10T

Abstract:
1. A rekeyable lock cylinder structure comprising: a shell having a hollow cylindrical portion, an extending protrusion formed at a lateral of the hollow cylindrical portion and defining a central axis, wherein the hollow cylindrical portion has an inside wall and an outside wall, the extending protrusion has a plurality of upper pin holes that communicate with the hollow cylindrical portion; a plug assembly disposed within the hollow cylindrical portion of the shell comprising: a plurality of pin groups, each pin group having an upper pin and a lower pin, wherein the upper pin is moveably disposed within at least one upper pin hole of the extending protrusion, the lower pin is moveably disposed within at least one lower pin hole of the plug body and at least one pin-sliding groove of the sliding block, the lower pin includes an upper locking piece and a lower locking piece able to engage with the upper locking piece, wherein the sliding block is able to push the lower locking piece of the lower pin.