Title:
SHOCK ABSORBER
Document Type and Number:
WIPO Patent Application WO/2020/241422
Kind Code:
A1
Abstract:
This shock absorber comprises: a piston part that is provided inside a cylinder (12), divides the cylinder (12) into a rod-side chamber and a bottom-side chamber (52), and has a damping force generation part that generates damping force by moving; a rod that has a base-end side to which the piston part is connected and a tip-end side that passes through the rod-side chamber and extends to the outside of the cylinder (12); and a free piston (41) that is provided in the bottom-side chamber (52) and separates the bottom-side chamber (52) into a hydraulic fluid chamber (55) and a gas chamber (56). At an intermediate position of the stroke of the piston part, the free piston (41) can move when the pressure of the bottom-side chamber (52) has reached a prescribed pressure.
Inventors:
SUDA TAKAYOSHI (JP)
NAITO HIROKATSU (JP)
TANABE UMI (JP)
NAITO HIROKATSU (JP)
TANABE UMI (JP)
Application Number:
PCT/JP2020/019993
Publication Date:
December 03, 2020
Filing Date:
May 20, 2020
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
B60G13/08; F16F9/32
Foreign References:
| JP2016528458A | 2016-09-15 | |||
| JPH08121524A | 1996-05-14 | |||
| JP2010164191A | 2010-07-29 | |||
| JPH10299810A | 1998-11-13 | |||
| JPH08189540A | 1996-07-23 | |||
| JP2010101351A | 2010-05-06 | |||
| JP2020076481A | 2020-05-21 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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