JPS59121534U

JPS59121534U - gas spring

Info

Publication number: JPS59121534U
Application number: JP1368583U
Authority: JP
Inventors: 藤巻　哲郎
Original assignee: マックス株式会社
Priority date: 1983-02-03
Filing date: 1983-02-03
Publication date: 1984-08-16

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す概略縦断面図、第２図
はガススプリングの要部を示す拡大断面図、第３図は開
閉弁を凹成して可動支柱が昇降される状態を示す概略縦
断面図、第４図は開閉弁を閉成して可動支柱を所定の位
置に保持した状態を示す概略縦断面図である。６・・・ガススプリング、７・・・シリンダ、８・・・
第１のピストン、９・・・ロッド、１０・・・第１のピ
ストン上室、１１・・・第２のピストン、１３・・・バ
ネ、１４・・・調整部材、１６・・・第１のピストン下
室、１８・・・開閉弁。Fig. 1 is a schematic vertical sectional view showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view showing the main parts of the gas spring, and Fig. 3 is a state in which the movable column is raised and lowered with the on-off valve recessed. FIG. 4 is a schematic longitudinal sectional view showing a state in which the on-off valve is closed and the movable column is held at a predetermined position. 6... Gas spring, 7... Cylinder, 8...
First piston, 9... Rod, 10... First piston upper chamber, 11... Second piston, 13... Spring, 14... Adjustment member, 16... First piston lower chamber, 18...opening/closing valve.

Claims

[Scope of utility model registration request]

(1) a cylinder, a first piston that is slidably and tightly fitted into the cylinder and to which a rod is integrally connected; and a first piston that is slidably and tightly fitted into the first piston upper chamber of the cylinder; a second piston, an on-off valve provided in the first piston to communicate and cut off a first piston upper chamber and a first piston lower chamber in the cylinder, and a second piston upper chamber in the cylinder; a pressing means disposed in the cylinder for pressing the second piston toward the first piston; and an adjustment member provided in the cylinder for adjusting the pressing force of the pressing means, A gas spring that is filled with liquid and in which the chambers between the pistons are filled with gas and liquid separated into upper and lower layers.

(2) The gas spring according to claim 1, wherein the pressing means is a spring.