Title:
SHOCK ABSORBER
Document Type and Number:
WIPO Patent Application WO/2023/106329
Kind Code:
A1
Abstract:
This shock absorber comprises: a bottomed cylindrical cylinder in which hydraulic fluid is sealed; a piston provided in the cylinder and dividing the inside of the cylinder into two cylinder chambers; a piston rod to which the piston is fastened; and a reservoir chamber in which the hydraulic fluid and gas are sealed. The shock absorber comprise a defining member provided with: a first partition member which defines the cylinder chambers in the cylinder and the reservoir chamber and which has a first flow channel that causes the cylinder chambers and the reservoir chamber to communicate with each other; and a frequency sensitive portion which is provided to the first partition member on the bottom side of the cylinder and to which the hydraulic fluid is supplied through the first flow channel.
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Inventors:
YAMAGUCHI YUTA (JP)
Application Number:
PCT/JP2022/045080
Publication Date:
June 15, 2023
Filing Date:
December 07, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F16F9/32; F16F9/348; F16F9/508
Domestic Patent References:
| WO2022075055A1 | 2022-04-14 |
Foreign References:
| JPS5865340A | 1983-04-19 | |||
| JP2012167688A | 2012-09-06 | |||
| JPS412171Y1 | 1966-02-15 | |||
| JP2011196502A | 2011-10-06 | |||
| JP2015059641A | 2015-03-30 | |||
| JP2014185686A | 2014-10-02 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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