Title:
SHOCK ABSORBER
Document Type and Number:
WIPO Patent Application WO/2022/085348
Kind Code:
A1
Abstract:
The present invention comprises: a first channel which is disposed in a piston and through which a working fluid moves from a chamber on an upstream side within a cylinder to a chamber on a downstream side due to movement of the piston; a first damping force generation mechanism that is provided in the first channel and generates damping force; a second channel (141) that is disposed in a piston rod (21); a fixed member that is fixed to the piston rod (21) to form the second channel (141); and a second damping force generation mechanism that is disposed in the second channel (141) and generates damping force. A throttle member (161): is provided in the second damping force generation mechanism; has a plurality of notch sections (171) at roughly equal intervals in the circumferential direction, the notch sections (171) forming a throttle channel (76) in the second channel; and is formed so that the channel area of the throttle channel (76) is constant at any attachment position in the circumferential direction.
Inventors:
KOTANI TAKAMASA (JP)
Application Number:
PCT/JP2021/034552
Publication Date:
April 28, 2022
Filing Date:
September 21, 2021
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F16F9/32; F16F9/348; F16F9/508
Domestic Patent References:
| WO2017013960A1 | 2017-01-26 |
Foreign References:
| JP2018162805A | 2018-10-18 | |||
| JP2014047875A | 2014-03-17 | |||
| JP2014092181A | 2014-05-19 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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