JPS63137104U

JPS63137104U -

Info

Publication number: JPS63137104U
Application number: JP2980987U
Authority: JP
Priority date: 1987-02-27
Filing date: 1987-02-27
Publication date: 1988-09-09

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
の断面図、第２図はその側面図である。１……シリンダ本体、２，３……ロツドカバー
（閉止部材）、４，５……ボルト、６，７……パ
ツキンケース（閉止部材）、８……ピストン、９
，１０……流体給排口、１１……ピストンロツド
、１１ａ……流体通路、１１ｂ……ナツト、１２
，１３……止め輪、１４，１５……スラスト軸受
、１６，１７……ラジアル軸受、１８，１９……
ロツドブツシユ、２０……ピストンパツキン、２
１，２２……パツキン、２３，２４……スラスト
ワツシヤ、２５，２６……パツキン、２７，２８
……Ｏリング、Ｒ，Ｌ……流体室。 FIG. 1 is a sectional view of a cylinder device which is an embodiment of the present invention, and FIG. 2 is a side view thereof. 1... Cylinder body, 2, 3... Rod cover (closing member), 4, 5... Bolt, 6, 7... Packing case (closing member), 8... Piston, 9
, 10...Fluid supply/discharge port, 11...Piston rod, 11a...Fluid passage, 11b...Nut, 12
, 13... Retaining ring, 14, 15... Thrust bearing, 16, 17... Radial bearing, 18, 19...
Rodbutsuyu, 20...Piston Packkin, 2
1,22...Putskin, 23,24...Thrust washer, 25,26...Putskin, 27,28
...O-ring, R, L...Fluid chamber.

Claims

[Claims for Utility Model Registration] (1) A cylinder body whose both ends are closed by closing members, a piston that is slidably provided with a fluid chamber separated in the axial direction within the cylinder body, and A piston rod is engaged with the piston so as to freely rotate, and both ends of the piston rod are protruded to the outside through the closing member of the cylinder body, and the piston rod is linearly moved in the axial direction by applying fluid pressure to the fluid chamber. A cylinder device capable of simultaneously or independently performing a displacement and a rotational displacement around an axis of the piston rod. (2) Claims for registration of a utility model characterized in that a thrust bearing that bears an axial thrust transmitted from the piston to the piston rod is interposed in the engagement portion of the piston rod with respect to the piston. The cylinder device according to item 1. (3) A utility model registration claim characterized in that a radial bearing is interposed in the penetrating portion of the piston rod with respect to the closing member to bear a load in the radial direction without hindering the displacement of the piston rod in the axial direction. Cylinder device according to scope 1. (4) The cylinder device according to claim 1, wherein a fluid passage is formed to pass through the piston rod in an axial direction thereof. (5) The cylinder device according to claim 1, wherein the piston rod is composed of a single member.