Patent ID: 8727090

Claim:
A clutch device that utilizes centrifugal force and sliding damping, comprising: a relay transmission structure assembly ( 104 ) including a relay output coupling structure ( 204 ) having an active side connected to a prime motive end ( 101 ) and a passive side that includes a relay output-end clutch structure ( 1051 or 1087 ), wherein the relay output-end clutch structure ( 1051 ) engages an output end clutch structure ( 1052 ) connected to a clutch output end ( 102 ) when the active side of the relay output coupling structure ( 204 ) is driven by the prime motive end ( 101 ); a static housing ( 107 ); and a limited torque sliding damping device ( 106 ) installed on the static housing; and a centrifugal clutch ( 1006 ) installed on the relay transmission structure assembly ( 104 ) at a position facing the limited torque sliding damping device ( 106 ), wherein: when the prime motive end ( 101 ) is driven in a first rotating direction before the relay output coupling structure ( 204 ) reaches a pre-set rotational speed, the relay output coupling structure ( 204 ) is in an idle state and the relay clutch structure ( 1051 or 1087 ) is disengaged from the output-end clutch structure ( 1052 ) so that the clutch output end ( 102 ) is disengaged from the prime motive end ( 101 ), and when the prime motive end ( 101 ) drives the relay output coupling structure ( 204 ) to reach or exceed the pre-set rotational speed, the centrifugal clutch ( 1006 ) installed on the relay transmission structure assembly ( 104 ) engages with the sliding damping device ( 106 ), the engagement resulting in generation of a limited reverse torque that acts on the relay transmission structure assembly ( 104 ) on the passive side of the relay output coupling structure ( 204 ) to cause a relative movement between the active and passive sides of the relay output coupling structure ( 204 ), thereby moving the relay clutch structure ( 1051 , 1077 or 1087 ) in a closing direction against a return spring force of at least one recovering actuation spring ( 120 , 1073 , or 1083 ) and causing the relay clutch structure ( 1051 , 1077 , or 1087 ) to engage the output-end clutch structure ( 1052 ) and transmit rotational kinetic energy from the prime motive end through the relay transmission structure assembly ( 104 ) to the output end ( 102 ), and when the prime motive end ( 101 ) is no longer driven in the first rotational direction and the rotational speed of the relay output coupling structure falls to below or equal to the preset rotational speed, the centrifugal clutch ( 1006 ) releases the sliding damping device ( 106 ) so that the reverse torque is no longer generated and the return spring force of the at least one recovering actuation spring ( 120 , 1073 , or 1083 ) causes the relay clutch structure ( 1051 , 1077 , or 1087 ) to move in an opening direction and disengage from the output-end clutch structure ( 1052 ).