JPH02130403U

JPH02130403U -

Info

Publication number: JPH02130403U
Application number: JP4008989U
Authority: JP
Priority date: 1989-04-05
Filing date: 1989-04-05
Publication date: 1990-10-26

Description

[Brief explanation of drawings]

第１図は本考案の第１の実施例を示すシリンダ
装置の一部断面図、第２図は第２の実施例を示す
シリンダ装置の一部断面図、第３図ないし第５図
は従来例を示す図で、第３図はシリンダ装置の断
面図、第４図はシリンダ装置の一部断面図、第５
図ａないし第５図ｄは溶接作業及びスリツト形成
作業を示す断面図である。１……ロツドエンド、３……内管、５……内管
の端部、７……ロツドエンドの端部内周面、９…
…溝（嵌合凹部）、１１……嵌合凸部。 FIG. 1 is a partial sectional view of a cylinder device showing a first embodiment of the present invention, FIG. 2 is a partial sectional view of a cylinder device showing a second embodiment, and FIGS. 3 to 5 are conventional 3 is a sectional view of the cylinder device, FIG. 4 is a partial sectional view of the cylinder device, and FIG. 5 is a sectional view of the cylinder device.
Figures a through 5d are cross-sectional views showing welding operations and slit forming operations. 1... Rod end, 3... Inner tube, 5... End of inner tube, 7... End inner peripheral surface of rod end, 9...
... Groove (fitting recess), 11... Fitting protrusion.

Claims

[Claims for Utility Model Registration] (1) A cylinder, a hollow rod that is slidably housed in the cylinder and has a piston at its tip, and an inner tube that is inserted into the rod. and supplying pressure fluid to one end side of the piston via between the rod and the inner pipe,
In a cylinder device that supplies pressurized fluid to the other end of the piston through the inner tube, the inner tube is inserted into the rod and the end of the inner tube located at the other end of the piston is expanded in diameter. , a cylinder device characterized by being crimped onto the inner peripheral surface of a rod. (2) In the cylinder device according to claim 1,
A cylinder device characterized in that a fitting recess is formed on one side of the crimp portion between the inner tube and the rod, and a fitting convex portion is formed on the other side.