Title:
SHOCK ABSORBER
Document Type and Number:
WIPO Patent Application WO/2020/137207
Kind Code:
A1
Abstract:
According to the present invention, a valve seat member (106) is disposed inside a cap member (101). A first sub valve (181) is provided to the other side chamber (20). A second sub valve (171) is provided inside a cap chamber (146) between the bottom section (122) of the cap member (101) and the valve seat member (106). In a second passage (182), an orifice (175) is disposed on the flow upstream side or flow downstream side where the first sub valve (181) is open. In a region in which the speed of a piston is low, while a first damping force generating mechanism (41) closes a valve, a second damping force generating mechanism (183) opens a valve. In a region in which the speed of the piston is higher than in the region in which the speed of the piston is low, the first damping force generating mechanism (41) and the second damping force generating mechanism (183) both open the valves.
Inventors:
YAMASHITA MIKIO (JP)
Application Number:
PCT/JP2019/044319
Publication Date:
July 02, 2020
Filing Date:
November 12, 2019
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F16F9/32; F16F9/508; F16F9/34
Domestic Patent References:
| WO2018062151A1 | 2018-04-05 |
Foreign References:
| JP2012067880A | 2012-04-05 | |||
| JP2009133348A | 2009-06-18 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
Download PDF:
Previous Patent: ABSORBENT ARTICLE MANUFACTURING DEVICE AND MANUFACTURING METHOD
Next Patent: BEVERAGE DISPENSER
Next Patent: BEVERAGE DISPENSER