JPS58127203U

JPS58127203U - Reciprocating drive device

Info

Publication number: JPS58127203U
Application number: JP2271682U
Authority: JP
Inventors: 松岡　孝典; 竹下　興二; 広田　和男
Original assignee: 三菱重工業株式会社
Priority date: 1982-02-22
Filing date: 1982-02-22
Publication date: 1983-08-29

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図は従来の往復駆動装置を示す縦断側面図、第２図
は各圧力室の圧力とピストンの移動量との関係を従来の
ものと本案のものとについて示す説明図、第３図は本案
に係る往復駆動装置の一実施例を示す縦断側面図である
。１・・・円筒シリンダ、２ａ、２ｂ・・・蓋、４・・・
ピストンロッド、６・・・ピストン、１８・・・加圧流
体供給源、１９ａ、　　１９ｂ−・・面閉弁、２２ａ、
　２２ｂ−・・排出弁、２３ａ、２３ｂ・・・逃し弁、
５０〜５２・・・位置検出器、Ｒ，Ｓ・・・圧力室。Fig. 1 is a longitudinal cross-sectional side view showing a conventional reciprocating drive device, Fig. 2 is an explanatory diagram showing the relationship between the pressure in each pressure chamber and the amount of movement of the piston for the conventional reciprocating drive device and the proposed one, and Fig. 3 is an explanatory diagram showing the relationship between the pressure in each pressure chamber and the amount of movement of the piston. FIG. 1 is a longitudinal sectional side view showing an embodiment of a reciprocating drive device according to the present invention. 1... Cylindrical cylinder, 2a, 2b... Lid, 4...
Piston rod, 6... Piston, 18... Pressurized fluid supply source, 19a, 19b-... Face-closed valve, 22a,
22b--Discharge valve, 23a, 23b... Relief valve,
50-52... Position detector, R, S... Pressure chamber.

Claims

[Scope of utility model registration request]

a cylindrical cylinder, a piston slidably fitted in the cylinder, and lids attached to both ends of the cylinder, respectively;
a piston rod extending from the piston in the axial direction of the cylinder and slidably penetrating at least one of the lids; a pressurized fluid supply source communicating with each pressure chamber on both sides of the piston via an on-off valve; A relief valve provided in communication with each of the pressure chambers, a discharge valve provided in communication with each of the pressure chambers, and a position detector provided along the movement path of the piston rod. A reciprocating drive device, characterized in that the position detector is connected to the discharge valve to open the discharge valve on the driving side of the pressure chamber during movement of the piston.