JPS6215467U

JPS6215467U -

Info

Publication number: JPS6215467U
Application number: JP10597785U
Authority: JP
Priority date: 1985-07-10
Filing date: 1985-07-10
Publication date: 1987-01-29

Description

[Brief explanation of the drawing]

第１図は、この考案の一実施例を示す回路ブロ
ツク図、第２図は同上の流量センサの縦断側面図
、第３図はこの考案の他の実施例を示す回路ブロ
ツク図、第４図及び第５図は従来例を示す縦断側
面図及び要部横断平面図である。１……インパクトレンチ、２……空気配管、３
……流量センサ、４……作動時間タイマ、５……
復帰時間タイマ、６……電磁弁、１１……弁座、
１２……弁体、１４……弁体検出センサ。 Fig. 1 is a circuit block diagram showing one embodiment of this invention, Fig. 2 is a longitudinal cross-sectional side view of the same flow rate sensor as above, Fig. 3 is a circuit block diagram showing another embodiment of this invention, and Fig. 4. and FIG. 5 are a vertical side view and a cross-sectional plan view of the main part showing a conventional example. 1... Impact wrench, 2... Air piping, 3
...Flow rate sensor, 4...Operating time timer, 5...
Return time timer, 6... Solenoid valve, 11... Valve seat,
12... Valve body, 14... Valve body detection sensor.

Claims

[Scope of utility model registration request]

In the air piping that supplies compressed air to pneumatic tools, a flow sensor with a built-in check valve is installed in the middle of the air piping, and a solenoid valve that opens and closes according to the signals of the operation time timer and return time timer is installed.
The flow rate sensor is provided with a valve body detection sensor at a position corresponding to the valve seat of the check valve, and the operation time timer is started by a signal from the valve body detection sensor and outputs a signal when a set time has elapsed to activate the solenoid valve. A time control device for a pneumatic tool, characterized in that the closing and return time timer is started when the operating time timer stops, and issues a signal when a set time elapses to open the solenoid valve.