Title:
HYDRAULIC DAMPER DEVICE AND METHOD OF PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2020/157816
Kind Code:
A1
Abstract:
A hydraulic damper device (20) comprises: a first cylinder body (32) which is formed in a cylindrical shape and through the interior of which oil (Oi) flows; a second cylindrical body (60) which is provided to the interior of the first cylindrical body (32, 41), inside of which oil (Oi) flows, and which forms with the first cylindrical body (32, 41) an oil path (OP) through which the oil (Oi) flows; a partition wall member (43) that is provided to the second cylindrical body (60) and delimits one end of oil chambers (R1, R2); rods (33, 45) that respectively penetrate through partition wall members (43, 49), extend along an axis (CL) of the second cylindrical body (60), are able to move relative to the partition wall members (43, 49), and each have a dimple section (33b, 45b) indented toward the center at the outer periphery; and pistons (35, 47) which are respectively provided to a distal end of the rods (33, 45) and through which the oil (Oi) is able to pass.
Inventors:
AWASA SHIGEKI (JP)
Application Number:
PCT/JP2019/002859
Publication Date:
August 06, 2020
Filing Date:
January 29, 2019
Export Citation:
Assignee:
SHOWA CORP (JP)
International Classes:
F16F9/32; B24B39/04
Foreign References:
| JP2003148546A | 2003-05-21 | |||
| JPS61278637A | 1986-12-09 | |||
| JPS59203852A | 1984-11-19 | |||
| JP2015080818A | 2015-04-27 | |||
| JPH11270678A | 1999-10-05 | |||
| JPH11270677A | 1999-10-05 | |||
| JP2010261486A | 2010-11-18 | |||
| JP2009156348A | 2009-07-16 | |||
| JP2005308169A | 2005-11-04 |
Attorney, Agent or Firm:
SHIMODA, Yo-ichiro et al. (JP)
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