Title:
DAMPER DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/181353
Kind Code:
A1
Abstract:
The present invention addresses the problem of stabilizing the state of assembly of a sealing member while allowing movement of a piston in a direction that reduces one space inside the cylinder with little resistance. The sealing member 3 comprises a base part 3a located towards the one space 5, which is a first space inside the cylinder 2, and an extended portion 3b extending from the base part 3a toward the other space 6, which is the second space inside the cylinder 2. The piston 1 is provided with a first holding part 1a that faces the base part 3a of the sealing member 3, a second holding part 1b that faces the extended edge 3i of the extended portion 3b of the sealing member 3, and a third holding part 1c that faces a held part 3k formed on the inside of the extended portion 3b of the sealing member 3. A fluid passage 1g is formed in the second holding part 1b.
Inventors:
UCHIDA KATSUTOSHI (JP)
Application Number:
PCT/JP2022/005329
Publication Date:
September 01, 2022
Filing Date:
February 10, 2022
Export Citation:
Assignee:
NIFCO INC (JP)
International Classes:
F16F9/02; F16F9/32; F16F9/34; F16J15/3204; F16J15/3236
Domestic Patent References:
| WO2017047775A1 | 2017-03-23 |
Foreign References:
| JP2008032206A | 2008-02-14 | |||
| US4948103A | 1990-08-14 | |||
| JPS4988539U | 1974-08-01 | |||
| JPS54127988U | 1979-09-06 | |||
| JPH024036U | 1990-01-11 | |||
| US6119832A | 2000-09-19 | |||
| JP2008032206A | 2008-02-14 | |||
| JP2021027046A | 2021-02-22 |
Attorney, Agent or Firm:
OGAWA Toshiharu et al. (JP)
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