Patent ID: 11970880
Assignee: TAIWAN FU HSING INDUSTRIAL CO., LTD.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. An electric lock, comprising:
a housing;
a manual control member rotatably affixed to the housing, wherein a shaft of the manual control member is formed with a groove; and
a clutch mechanism, comprising:
a clutch base rotatably affixed to the housing;
a retractable plug arranged on the clutch base and radially movable relative to the clutch base;
a driving member located outside the manual control member and has an arc surface configured to abut against a first end of the retractable plug; and
a motor configured to drive the driving member to move relative to the clutch base toward the shaft of the manual control member;

wherein a second end of the retractable plug is formed with a guiding structure, and the guiding structure has an arc surface or an inclined surface, wherein a length defined between the first end and the second end of the retractable plug is variable;
wherein a chamfer is formed at an edge of the groove and corresponding to the guiding structure;
wherein when the motor drives the driving member to move from an initial position toward the clutch base less than a predetermined distance and when the manual control member is rotated, the shaft of the manual control member is configured to abut against the second end of the retractable plug to shorten the retractable plug;
wherein when the motor drives the driving member to move from the initial position toward the clutch base greater than or equal to the predetermined distance and when the manual control member is rotated, the second end of the retractable plug is inserted into the groove, so that the clutch base is synchronously rotated with the manual control member.