| 摘要 |
PCT No. PCT/US82/01401 Sec. 371 Date Sep. 20, 1982 Sec. 102(e) Date Sep. 20, 1982 PCT Filed Sep. 20, 1982 PCT Pub. No. WO84/01198 PCT Pub. Date Mar. 29, 1984.A shock absorber (10) has a rebound stop assembly (22). The rebound stop assembly (22) rests upon a shoulder (30) fixed to a piston rod (16). The rebound stop assembly (22) includes an elastomeric ring (24) interposed between two collars (26 and 28) forming an annular chamber (74) therebetween. At the end of the rebound stroke of the piston rod (16), the rebound stop assembly (22) is axially compressed between the shoulder (30) of the piston rod (16) and the rod guide (18) until the elastomeric ring (24) deforms to abut the inner wall (64) of the working cylinder. As the elastomeric ring deforms, the annular chamber decreases in volume. A restrictive passage (71) allows a restrictive flow of fluid therefrom. An additional chamber (70) is formed which is in restrictive fluid communication through the passage (71) with a section (68) of a rebound chamber (20). Further compression of the stop assembly (22) decreases the volume of both chambers (70 and 74), and causes restrictive fluid flow out therefrom through the passage (71) into the section (68) of the rebound chamber (20). The compression of the elastomeric ring and the restrictive fluid flow provides additional damping at the end of the rebound stroke.
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