Title:
SHOCK ABSORBER
Document Type and Number:
Japanese Patent JP2015163801
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a shock absorber capable of obtaining excellent damping force characteristics.SOLUTION: A shock absorber includes an extension side main passage 69, a contraction side main passage 68, and an auxiliary passage 83 commonly applied to the extension side and the contraction side, each of which circulates operating fluid by sliding a piston 16. The shock absorber is configured in the following manner: an extension side main damping valve 77 is disposed in the extension side main passage 69, and a contraction side main damping valve 72 disposed in the contraction side main passage 68; inflow side check valves 35 and 50 are disposed on an upstream side in an extension stroke of the auxiliary passage 83 and on an upstream side in a contraction stroke thereof, respectively; and outflow side auxiliary damping valves 93 and 113 are disposed on a downstream side in an extension stroke of the auxiliary passage 83 and on a downstream side in a contraction stroke thereof, respectively.
Inventors:
KIMURA YUSEI
Application Number:
JP2014039657A
Publication Date:
September 10, 2015
Filing Date:
February 28, 2014
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD
International Classes:
F16F9/348
Domestic Patent References:
| JP2002295566A | 2002-10-09 | |||
| JPH0434235A | 1992-02-05 | |||
| JP2008215433A | 2008-09-18 | |||
| JP2001090768A | 2001-04-03 | |||
| JP2001234963A | 2001-08-31 |
Foreign References:
| WO2007052581A1 | 2007-05-10 | |||
| US5860497A | 1999-01-19 |
Attorney, Agent or Firm:
Masatake Shiga