JPH0329219U

JPH0329219U -

Info

Publication number: JPH0329219U
Application number: JP9135389U
Authority: JP
Priority date: 1989-08-01
Filing date: 1989-08-01
Publication date: 1991-03-22
Anticipated expiration: 2004-08-01
Also published as: JPH0723133Y2

Description

[Brief explanation of drawings]

図面は本考案の実施例を示し、第１図は断面側
面図、第２図は第１図−線矢視図、第３図は
第１図−線矢視図、第４図は第１図−線
断面矢視図、第５図は第１図−線断面矢視図
、第６図は第１図−線断面矢視図、第７図は
第１図−線断面矢視図、第８図はピストンの
半断面側面図、第９図はザブ流路開通状態の断面
側面図、第１０図は第９図−線断面矢視図で
ある。１……弁本体、２……シリンダ室、３……ピス
トン、５……第２送気口、８……小径孔部、９…
…戻しバネ、１１……連通孔、１５……第１送気
口、１９……内周凹溝、２０……給気口、２４…
…メイン流路、２５……サブ流路。 The drawings show an embodiment of the present invention, and FIG. 1 is a cross-sectional side view, FIG. 2 is a view taken from FIG. Figure 5 is a cross-sectional view along the line from Figure 1, Figure 6 is a cross-sectional view along the line from Figure 1, Figure 7 is a cross-sectional view along the line from Figure 1, FIG. 8 is a half-sectional side view of the piston, FIG. 9 is a cross-sectional side view of the piston in an open state, and FIG. 10 is a cross-sectional view taken along the line shown in FIG. 9. DESCRIPTION OF SYMBOLS 1...Valve body, 2...Cylinder chamber, 3...Piston, 5...Second air supply port, 8...Small diameter hole, 9...
... Return spring, 11 ... Communication hole, 15 ... First air supply port, 19 ... Inner circumference groove, 20 ... Air supply port, 24 ...
...Main channel, 25...Sub channel.

Claims

[Scope of utility model registration request]

A main passage 24 from the air supply port 20 to the first air supply port 15 and a sub passage 25 from the air supply port 20 to the second air supply port 5 are provided in the valve body 1. One end side is pressed by compressed air branched from the piston 3, and the piston 3 is moved to the other end side of the cylinder chamber 2 against the return spring 9, thereby opening the sub flow path 25 and supplying the air to the air supply port 20. In a two-way switching valve for a pneumatic tool that supplies compressed air from the first air supply port 15 and also supplies compressed air from the second air supply port 5 after a predetermined time delay, the main flow path 24 is connected from the air supply port 20 to the cylinder chamber. 2 Circumferential groove 1 formed on the inner circumferential surface
9 to the first air supply port 15, and the sub flow path 25 connects the piston 3 from the air supply port 20 to the concave groove 19 by moving the piston 3 toward the other end.
The communication hole 11 and the passage 8 in the piston 3 formed in the
For a pneumatic tool, the concave groove 19 and the communication hole 11 are in a non-communicating state when the piston 3 is returned to the return position by the return spring 9. Two-way switching valve.