Patent ID: 11958566
Assignee: NEW KAILUNG GEAR CO., LTD
Field: Mechanical elements (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 4:
5. The control device of the internal speed change device of the wheel hub for clutching operation as claimed in claim 4, wherein when the controlling ring (7) rotates with a predetermined angle to rotate the S pole of the first magnetic unit (71) to a position locating the second magnetic unit (42) of the electric sliding block (4), the electric sliding block (4) is driven to rotate counterclockwise by a magnetic force between the S pole of the first magnetic unit (71) and the second magnetic unit (42) so as to drive the lever (3) to move backwards along an axial direction by the teethed surface (41) of the electric sliding block (4); and
wherein when the controlling ring (7) rotates continuously with the predetermined angle to rotate the N pole of the first magnetic unit (71) to a position locating the second magnetic unit 42 of the electric sliding block (4), the electric sliding block (4) is driven to rotate clockwise by a force of attraction or repulsion between the N pole of the first magnetic unit (71) and the second magnetic unit (42) so as to drive the lever (3) to move forwards along the axial direction by the teethed surface (41) of the electric sliding block (4).