Title:
緩衝器
Document Type and Number:
Japanese Patent JP7422941
Kind Code:
B2
Abstract:
A stopper mechanism (20) in this shock absorber includes: an intermediate valve (21) provided between a piston (9) and a bottom valve (15); an intermediate chamber (D) formed between the bottom valve (15) and the intermediate valve (21); a shielding member (26) that moves together with the piston (9) relative to an inner cylinder (6); a through hole (30) whereby a bypass flow path (28) connecting a bottom-side chamber (B) and the intermediate chamber (D) is opened or closed as a result of the position relative to the shielding member (26); and a disk valve (23) that is provided to the intermediate valve (21) and generates damping force at the time of a contraction step.
Inventors:
Ryo Shinada
Application Number:
JP2023508621A
Publication Date:
January 26, 2024
Filing Date:
December 16, 2021
Export Citation:
Assignee:
Hitachi Astemo, Ltd.
International Classes:
F16F9/48; F16F9/32
Domestic Patent References:
| JP2012207774A | ||||
| JP7139576A | ||||
| JP59004840U |
Foreign References:
| WO2019167006A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Hirowa Patent Office
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