JPS6256805U

JPS6256805U -

Info

Publication number: JPS6256805U
Application number: JP15040485U
Authority: JP
Priority date: 1985-09-30
Filing date: 1985-09-30
Publication date: 1987-04-08

Description

[Brief explanation of the drawing]

図面は本考案の一実施例を示すもので、第１図
は装置全体の説明図、第２図〜第４図はエアシリ
ンダの動作状態を順次示す作動状態図である。１…動力取出装置、２，５…エアシリンダ、３
…油圧ポンプ、４…油圧制御弁、６…エアタンク
、１０，１１，１４…電磁切換弁。 The drawings show one embodiment of the present invention, and FIG. 1 is an explanatory diagram of the entire device, and FIGS. 2 to 4 are operating state diagrams sequentially showing the operating states of the air cylinder. 1... Power take-off device, 2, 5... Air cylinder, 3
... Hydraulic pump, 4... Hydraulic control valve, 6... Air tank, 10, 11, 14... Solenoid switching valve.

Claims

[Scope of utility model registration request]

It consists of a hydraulic pump driven by engine power via a power extraction device, and a hydraulic cylinder to which pressure oil from the hydraulic pump is supplied via a hydraulic control valve having three switching positions. A single air cylinder having a first chamber and a second chamber partitioned by a first piston and a second piston is connected to the spool, and air that operates the second chamber of the air cylinder and a power take-off device is connected to the spool. Piping is connected to the base chamber of the cylinder so that pressurized air from an air tank can be supplied via first and second electromagnetic switching valves, respectively, and the base chamber of the air cylinder of the power extraction device and the second electromagnetic switching valve are connected to each other. A branch pipe communicating with the first chamber of the air cylinder is connected in between,
An operation control device characterized in that the branch pipe is provided with a third electromagnetic switching valve that connects and disconnects pressurized air to the first chamber of the air cylinder.