Title:
CYLINDER DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/054007
Kind Code:
A1
Abstract:
A cylinder device comprising: a piston rod (50), one end side of which is connected to a piston, and the other end side of which is inserted into a stopping member and extends to the outside of a cylinder; and a cushion member (82) that is provided between the piston and the stopping member, and is brought into contact with the stopping member by extension of the piston rod (50). The cushion member (82) has a first member (101) and a second member (102) that is radially inward of the first member (101), is brought into contact with the stopping member before the first member (101), and has a lower hardness than the first member (101). The first member (101) and the second member (102) exert a force in parallel on the stopping member.
Inventors:
ODA RINNOSUKE (JP)
TACHIBANA HIROAKI (JP)
MIYAKE SHINGO (JP)
MATSUMURA SADATOMO (JP)
SHINATA RYO (JP)
TACHIBANA HIROAKI (JP)
MIYAKE SHINGO (JP)
MATSUMURA SADATOMO (JP)
SHINATA RYO (JP)
Application Number:
PCT/JP2022/034686
Publication Date:
April 06, 2023
Filing Date:
September 16, 2022
Export Citation:
Assignee:
HITACHI ASTEMO LTD (JP)
International Classes:
F16F9/58
Foreign References:
| JPS6137880Y2 | 1986-11-01 | |||
| JPH08233020A | 1996-09-10 | |||
| JP2015108414A | 2015-06-11 | |||
| JP2001065511A | 2001-03-16 | |||
| JPS62202543U | 1987-12-24 | |||
| JPH0914328A | 1997-01-14 | |||
| US20080314707A1 | 2008-12-25 | |||
| KR20040039649A | 2004-05-12 |
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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