Shock absorber

Patent metadata

Field	Value
Publication number	US-2022018418-A1
Application number	US-202017430439-A
Country	US
Kind code	A1
Filing date	Feb 14, 2020
Priority date	Feb 26, 2019
Publication date	Jan 20, 2022
Grant date	—

Abstract

A mounting eye ( 21 ) is fastened to a rod by pushing, partially or over an entire periphery, an outer periphery of a joint portion of a mounting eye into an annular groove of the rod. Accordingly, an axial length of a fastening portion can be set shorter than that of a related-art structure (screw fastening), thereby being capable of securing a stroke of the rod of a shock absorber in which the mounting eye is fastened to the rod.

First claim

1 - 3 . (canceled)

4 . A shock absorber, comprising:
a cylinder having a working fluid charged therein; a piston inserted in the cylinder; a rod having one end coupled to the piston and another end extending to an outside of the cylinder; a mounting eye fastened to the another end of the rod, wherein the mounting eye is formed of a long portion and a short portion in two radial directions orthogonal to each other on a projection plane from an axial one end side; and an eye portion, which passes through the short portion side, and into which a bearing is to be inserted on an inner periphery side; a flange portion formed at the rod side of the eye portion; and an engagement protrusion portion, which is formed on the rod side of the eye portion, and is configured to connect the eye portion and the rod to each other.

5 . The shock absorber according to claim 4 ,
wherein the rod has an annular groove formed in a portion of the rod on another end side to be inserted into the engagement protrusion portion, wherein the engagement protrusion portion includes a joining portion configured to join the mounting eye and the rod to each other, and wherein the joining portion is formed by pushing an inner peripheral surface of a side wall of the engagement protrusion portion into the annular groove.

6 . The shock absorber according to claim 4 ,
wherein the rod is hollow, wherein the rod has an actuator fastened thereto, wherein the actuator has one side of a harness connected thereto, and wherein the harness has another side extending through the hollow portion of the rod from a groove portion formed in the eye portion to an outside.

7 . The shock absorber according to claim 6 , wherein the groove portion extends from an axial another end to one end of the eye portion.

8 . The shock absorber according to claim 4 , further comprising a bush inserted on an inner periphery side of the eye portion.

9 . The shock absorber according to claim 4 , further comprising a dust cover mounted to the flange portion.

10 . The shock absorber according to claim 5 ,
wherein the rod is hollow, wherein the rod has an actuator fastened thereto, wherein the actuator has one side of a harness connected thereto, and wherein the harness has another side extending through the hollow portion of the rod from a groove portion formed in the eye portion to an outside.

11 . The shock absorber according to claim 10 , wherein the groove portion extends from an axial another end to one end of the eye portion.

12 . The shock absorber according to claim 5 , further comprising a bush inserted on an inner periphery side of the eye portion.

13 . The shock absorber according to claim 6 , further comprising a bush inserted on an inner periphery side of the eye portion.

14 . The shock absorber according to claim 7 , further comprising a bush inserted on an inner periphery side of the eye portion.

15 . The shock absorber according to claim 5 , further comprising a dust cover mounted to the flange portion.

16 . The shock absorber according to claim 6 , further comprising a dust cover mounted to the flange portion.

17 . The shock absorber according to claim 7 , further comprising a dust cover mounted to the flange portion.

Assignees

• Hitachi Astemo Ltd

Inventors

• Suehiro Masato
• Maeda Atsushi
• Nakayama Yuji
• Kozono Takashi
• Yamaka Koichi

Classifications

• B60G2206/41

  Dampers · CPC title

• B60G2204/202

  of cables · CPC title

• B60G2202/24

  Fluid damper · CPC title

• B60G13/003

  characterised by the mounting on the vehicle body or chassis of the damper unit · CPC title

• B60G2204/128

  Damper mount on vehicle body or chassis · CPC title