公开(公告)号：WO2015004701A1

公开(公告)日：2015-01-15

申请号：PCT/JP2013/004317

申请日：2013-07-12

Applicant: SHOWA CORPORATION

Inventor： KONAKAI, Seiryo ,  HOJO, Satomi

IPC: F16F9/36

CPC classification number: B60G13/08 ,  B60G2202/24 ,  B60G2206/41 ,  B60G2500/10 ,  F16F9/185 ,  F16F9/3242 ,  F16F9/36 ,  F16F2222/12 ,  F16F2238/04

Abstract: The hydraulic shock absorber includes a cylinder containing a fluid, a damper case positioned outside the cylinder to form a reserving chamber, a piston housed inside the cylinder, a piston rod supporting the piston, a rod guide covering one end of the cylinder, and a guide bushing provided with a through hole through which the piston rod penetrates. The rod guide has an outer circumferential groove formed by spacing apart at least a part of the rod guide from the cylinder in a circumferential direction of the cylinder for allowing the fluid to flow from inside of the cylinder to the reserving chamber, and has an inner circumferential groove for supplying the fluid into an inner circumferential gap between an inner circumferential surface of the guide bushing and an outer circumferential surface of the piston rod as the fluid flows through the outer circumferential groove.

Abstract translation: 该液压缓冲器包括一个容纳流体的气缸，位于气缸外部以形成储存室的阻尼器壳体，容纳在气缸内的活塞，支撑活塞的活塞杆，覆盖气缸一端的杆导向件和 引导衬套，其具有活塞杆穿过的通孔。 杆引导件具有外圆周槽，该外周槽沿圆筒的圆周方向将杆导向件的至少一部分与圆筒隔开，以使流体从缸体的内部流到储存室，并且具有内部 周向槽，用于当流体流过外周槽时，将流体供给到导套的内周面与活塞杆的外周面之间的内周间隙。