Sun-castle Global Precision Technology Co., Ltd.

Tien-Chun Lan

Chung-Ming Tseng

An electronic lock includes a mechanism comprising a drive assembly comprising a pinion, a gearwheel including a peripheral flange having openings with a curved edge; a clutch comprising a ring including risers in the openings to engage with the curved edges, a first sleeve in the ring and including a rear projection, a driven member including a groove disengaged from the corresponding projection when the lock is locked, and a first spindle, and a spring put on the first sleeve and urged against the driven member; a second sleeve securely urged against the first sleeve; and a second spindle securely passing the second sleeve into the first sleeve. Turning the pinion will turn the gearwheel, push the risers rearward by sliding along the curved edges, move the ring rearward to fit the projection into the groove, and compress the spring such that turning an outer handle will unlock the lock.

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Taichung, Taiwan

Tien-Chun Lan