Title:
GAS SPRING
Document Type and Number:
WIPO Patent Application WO/1999/042741
Kind Code:
A1
Abstract:
A gas spring (1) comprises, among other things, a cylinder body (2), a piston member (3), compressed gas filled in a gas operating chamber (4), lubricating oil (4a) accommodated in the bottom part of the gas operating chamber (4), a base member (5) fixed to the output end part of the piston member (3), a guiding cylindrical member (6) fixed to the upper face of the base member (5) and extending upward, with the guiding cylindrical member (6) having an annular guide hole (23) for guiding the cylinder body (2) toward the outside of the piston member (3), wherein the cylinder body (2) and the piston member (3) are arranged in an upside down state in a perpendicular attitude, and the oil (4a) is reliably supplied to sliding parts (21) between the cylinder body (2) and the piston member (3), thereby improving the performance of sealing the sliding parts (21) with the oil (4a).
Inventors:
KITAURA ICHIRO (JP)
Application Number:
PCT/JP1998/000699
Publication Date:
August 26, 1999
Filing Date:
February 18, 1998
Export Citation:
Assignee:
PASCAL KK (JP)
KITAURA ICHIRO (JP)
KITAURA ICHIRO (JP)
International Classes:
F16F9/02; F16F9/32; (IPC1-7): F16F9/02; B30B15/02
Foreign References:
| JPH07246500A | 1995-09-26 | |||
| JPS49132441A | 1974-12-19 | |||
| JPS5737525U | 1982-02-27 | |||
| JPS5830882A | 1983-02-23 | |||
| JPS51117278A | 1976-10-15 |
Attorney, Agent or Firm:
Okamura, Toshio (5-5 Nishitenma 4-chome, Kita-k, Osaka-shi Osaka, JP)
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