JPS6274975U

JPS6274975U -

Info

Publication number: JPS6274975U
Application number: JP16648185U
Authority: JP
Priority date: 1985-10-29
Filing date: 1985-10-29
Publication date: 1987-05-13

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は正転時の作動状態を示す切換弁の断面
図、第２図は逆転時の同説明図、第３図は第１図
の横断面図、第４図は第２図の横断面図、第５図
はエヤードライバーの実施例図である。１は切換弁装置、２は孔、３はブシユ、４は切
換弁、５はばね、Ｍはエヤーモータ、Ｉはエヤー
供給路、Ｐ_１，Ｐ_２はエヤー通路、Ｏ_１，Ｏ_２は
排気通路。 Figure 1 is a sectional view of the switching valve showing the operating state during forward rotation, Figure 2 is an explanatory view of the same when it is reversed, Figure 3 is a cross-sectional view of Figure 1, and Figure 4 is a cross-sectional view of Figure 2. The top view and FIG. 5 are illustrations of an embodiment of the air driver. 1 is a switching valve device, 2 is a hole, 3 is a bush, 4 is a switching valve, 5 is a spring, M is an air motor, I is an air supply path, P ₁ and P ₂ are air passages, O ₁ and O ₂ are exhaust passages .

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

エヤーモータへ導通するエヤー供給路の一部に
切換弁装置を設け、該弁装置をエヤーモータ側及
び主弁側のエヤー供給路及び排気通路に通ずる孔
を穿孔したブシユと、このブシユ内にばね圧下に
て摺動自在に嵌挿する切換弁とよりなり、かつ切
換弁外周には２つの独立した正逆転切換用の内室
とリセツト用の空気圧室を形成し、この空気圧室
と前記一つの内室とを切換弁内に形成した通路と
小孔とにて導通せしめ、押込状態にある切換弁を
空気室内圧にてその状態を保持し、給気の停止に
て空気圧室の内圧の低下にて自動的に復帰するよ
うになした空気工具における正逆転切換バルブ。 A switching valve device is provided in a part of the air supply path that leads to the air motor, and the valve device is connected to a bushing with holes that connect to the air supply path and exhaust path on the air motor side and the main valve side, and a spring pressure inside the bushing. The switching valve is slidably inserted into the switching valve, and the switching valve has two independent inner chambers for forward/reverse switching and a pneumatic chamber for resetting formed on the outer periphery of the switching valve. A passage formed in the switching valve and a small hole conduct the switching valve, and the switching valve in the pushed-in state is maintained at the pressure in the air chamber, and when the air supply is stopped, the internal pressure in the air pressure chamber decreases. A forward/reverse switching valve for air tools that automatically returns.