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Patent Searching and Data


Title:
GAS SPRING
Document Type and Number:
Japanese Patent JP2008223797
Kind Code:
A
Abstract:

To provide a gas spring short in its total length, and simple in the manufacturing process, in a gas spring having a bellows.

The metallic bellows substantially coaxially arranged with a cylinder are arranged between an outer cylinder and the cylinder. A bellows inner chamber partitioned by the inside of the bellows and the outside of the cylinder, is communicated with a cylinder chamber partitioned by the cylinder, a piston and a rod side plate, to be formed as an oil chamber of filling a hydraulic fluid inside, and the gas spring is also constituted with a bellows outer chamber as a high pressure gas chamber sealed with gas of predetermined pressure. Thus, the gas spring capable of applying pressure by the bellows, shortening the total length and easy in manufacture, can be provided.


Inventors:
NIIHORI TAKEYOSHI
UCHIDA TAKESHI
Application Number:
JP2007058979A
Publication Date:
September 25, 2008
Filing Date:
March 08, 2007
Export Citation:
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Assignee:
NHK SPRING CO LTD
International Classes:
F16F9/08
Domestic Patent References:
JPH07156699A1995-06-20
JPS4836484B11973-11-05
JPS6165928A1986-04-04
JPH07139574A1995-05-30
JP2001020987A2001-01-23
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto