US Patent 8657089 Torque actuated clutch

The present invention relates to a clutch actuated by torque capable of controlling a clutch device to perform operations of coupling or disengaging with the driving torque, characterized in that a relay transmission structure assembly (104) is installed between a rotary prime motive end (101) and an output-end clutch structure (1052), the relay transmission structure assembly (104) is installed with a relay coupling structure (204) having an active side of relay coupling structure and a passive side of relay coupling structure, a limit-torque sliding damping device (106) is installed between the relay transmission structure assembly (104) and the static housing (107).