JPH0369304U

JPH0369304U -

Info

Publication number: JPH0369304U
Application number: JP12833489U
Authority: JP
Priority date: 1989-11-01
Filing date: 1989-11-01
Publication date: 1991-07-10

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例であるシリンダ装置
の要部を取り出して示す断面図、第２図は第１図
において線−で示される部分の断面図、第３
図は全体構成の一例を示す断面図である。１……シリンダ、１ａ，１ｂ……シリンダカバ
ー、１ｃ，１ｄ……給排口、１ｅ，１ｆ……パツ
キン、２……ピストン、２ａ……貫通孔、２ｂ…
…圧入孔、２ｃ……Ｏリング、２ｄ……ピストン
パツキン、３……ピストンロツド、３ａ，３ｂ…
…嵌合溝、４……カラー、５ａ，５ｂ……鋼球、
６……サポート、６ａ……貫通孔、６ｂ……圧入
孔、６ｃ……縮径部、７……永久磁石、Ａ，Ｂ…
…流体室。 FIG. 1 is a cross-sectional view showing the main parts of a cylinder device that is an embodiment of the present invention, FIG. 2 is a cross-sectional view of the part indicated by the line - in FIG.
The figure is a sectional view showing an example of the overall configuration. 1... Cylinder, 1a, 1b... Cylinder cover, 1c, 1d... Supply/discharge port, 1e, 1f... Packing, 2... Piston, 2a... Through hole, 2b...
...Press-fit hole, 2c...O-ring, 2d...Piston seal, 3...Piston rod, 3a, 3b...
...Fitting groove, 4...Collar, 5a, 5b...Steel ball,
6...Support, 6a...Through hole, 6b...Press-fit hole, 6c...Reduced diameter part, 7...Permanent magnet, A, B...
...Fluid chamber.

Claims

[Claims for Utility Model Registration] 1. A cylinder, a rod having at least one end protruding from the cylinder and having a fitting groove cut in a circumferential direction on a part of its outer periphery, and a plurality of rods arranged in the fitting groove. A steel ball, a collar for positioning the plurality of steel balls in the fitting groove, a through hole of the rod, and a press-fit hole having a press-fit allowance for the steel balls are coaxially drilled and are arranged axially inside the cylinder. A cylinder device comprising a piston that slides on the piston, and the piston and the rod are fastened together via the steel ball by relatively press-fitting the steel ball into the press-fit hole of the piston. 2. A support having the same through hole and press-fit hole as the piston is attached to the rod so as to face the piston, and the rod has 2 supports.
A plurality of sets of steel balls are held at both ends of the collar corresponding to each of the two engagement grooves, and the collar is pinched from both ends. By bringing the piston and the support close to each other, the steel balls located in the holding grooves of each strip are press-fitted into the press-fit holes of each of the piston and the support. A cylinder device according to claim 1 of the utility model registration claim.