Title:
緩衝器
Document Type and Number:
Japanese Patent JP7129937
Kind Code:
B2
Abstract:
To provide a shock absorber which can suppress the lowering of productivity.SOLUTION: A shock absorber has: a passage 185 from which a working fluid flows to a chamber at a downstream side from a chamber at an upstream side in a cylinder 2 by the movement of a piston 18; first attenuation force generation mechanisms 41, 42 arranged in the passage 185, valve-closed in a region in which a piston speed is low, and valve-opened in a region in which the piston speed is higher than the low speed; and a second attenuation force generation mechanism 182 arranged in the passage 185, and valve-opened from the region in which the piston speed is low. The second attenuation force generation mechanism 182 has a disc valve 102 which is cantilevered by support members 100, 105 and 106, and elastically deformed by a pressure difference between the two chambers. A free end of the disc valve 102 opposes a piston rod 21.SELECTED DRAWING: Figure 2
Inventors:
Mikio Yamashita
Application Number:
JP2019059234A
Publication Date:
September 02, 2022
Filing Date:
March 26, 2019
Export Citation:
Assignee:
Hitachi Astemo, Ltd.
International Classes:
F16F9/508; F16F9/348
Domestic Patent References:
| JP2010059994A | ||||
| JP2018076920A | ||||
| JP39006264B1 | ||||
| JP2019116902A |
Attorney, Agent or Firm:
Patent Attorney Shiga International Patent Office
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