Patent ID: 7654376
Filing Date: 2010-02-02
Classification: F16D

Abstract:
1. A clutch capable of cushioning forward movement and guarding backward movement, comprising: a first mandrel further comprising an engagement gear surface on one end thereof; a second mandrel; a clutch sleeve mounted on an end section of said second mandrel close to said first mandrel; a driving stick driving said clutch sleeve to move longitudinally; a clutch ring slidably mounted on said clutch sleeve for engaging the engagement gear surface of the first mandrel, having a cushioning mechanism with said clutch sleeve; cushion springs disposed in said cushioning mechanism for facilitating the engagement between said clutch ring and said engagement gear surface on said first mandrel when said clutch sleeve and said clutch ring are not precisely aligned due to a driving stick shift; and safety springs disposed in said cushioning mechanism for facilitating the disengagement between said clutch ring and said engagement gear surface on said first mandrel when said clutch sleeve and said clutch ring are not precisely aligned due to a driving stick shift; and wherein said clutch sleeve is further provided with a ring groove for securing said driving stick and retaining holes for said cushioning springs and retaining holes for said safety springs; each of said retaining holes being provided with through holes for positioning axles for said cushioning springs and said safety springs; a plurality of engagement strips being formed on an inner wall of said clutch sleeve for engaging a plurality of engagement slots on said second mandrel; said clutch sleeve further having a plurality of engagement slots on an outer wall thereof for engaging said clutch ring.