Title:
CYLINDER DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/002595
Kind Code:
A1
Abstract:
A stopper mechanism (11) comprises: a second cylinder (12), which is provided on an end inside an inner cylinder (5); and a second piston (13), which moves together with the movement of a piston rod (7) and is provided so as to fit in the second cylinder (12). The second piston (13) is configured to comprise: a stopper (14) that is bonded to the piston rod (7); a castle (15), which is integrated with the stopper by plastic flow and forms a ring groove (16) between the castle and the stopper (14) on the outer circumference of the second piston (13) between itself and the stopper (14); and a piston ring (17), which is installed so as to be axially displaceable but retained in the ring groove (16) formed by the stopper (14) and the castle (15), is ring-shaped, and has two ends in the circumferential direction from which a portion has been cut off.
Inventors:
ISHIMARU YU (JP)
ISHIBASHI NAOKI (JP)
OHNO TAKAYUKI (JP)
TAJIMA MAKOTO (JP)
ISHIBASHI NAOKI (JP)
OHNO TAKAYUKI (JP)
TAJIMA MAKOTO (JP)
Application Number:
PCT/JP2016/067530
Publication Date:
January 05, 2017
Filing Date:
June 13, 2016
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F16F9/58; F16F9/32; F16F9/49
Foreign References:
| JP2015068428A | 2015-04-13 | |||
| JP2014129869A | 2014-07-10 | |||
| JP2002005215A | 2002-01-09 | |||
| JP2008215487A | 2008-09-18 | |||
| JP2004225890A | 2004-08-12 |
Attorney, Agent or Firm:
HIROSE Kazuhiko (JP)
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