Title:
CYLINDER DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/225711
Kind Code:
A1
Abstract:
In the present invention, a hydraulic stopper mechanism 11 is configured from a second cylinder 12 secured to the inside of an enlarged-diameter portion 5A of an inner tube 5, and a second piston 13 provided on the outer circumferential side of a piston rod 7. The second piston 13 has a stopper 14 joined to the piston rod 7, a castle 15 that is positioned on the upper side of the stopper 14 and integrated therewith by being press-fitted and joined inside an inside fitting hole 14A1, and a piston ring 17 attached to a ring groove 16 defined by the castle 15 and the castle 15. The stopper 14 and the castle 15 are integrated together through press-fitting and joining on the inner circumferential side thereof, and the ring groove 16 is formed between the stopper 14 and the castle 15.
Inventors:
SUEHIRO MASATO (JP)
Application Number:
PCT/JP2018/021508
Publication Date:
December 13, 2018
Filing Date:
June 05, 2018
Export Citation:
Assignee:
HITACHI AUTOMOTIVE SYSTEMS LTD (JP)
International Classes:
F16F9/58; F16F9/32
Domestic Patent References:
| WO2017002595A1 | 2017-01-05 | |||
| WO2016019460A1 | 2016-02-11 |
Foreign References:
| JP2004068841A | 2004-03-04 | |||
| JP2004060776A | 2004-02-26 | |||
| JP2004068840A | 2004-03-04 |
Attorney, Agent or Firm:
ONO, Shinjiro et al. (JP)
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