JPS62190172U - - Google Patents

Description

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

第１図は本考案の一実施例を示す断面図、第２
図は従来例を示す断面図。 ２……出力ポート、３……出力室、４……給気
ポート、５……給気室、６……排気ポート、７…
…排気室、９……給気孔、１０……給気弁座、１
２……排気孔、１３……排気弁座、１４……弁体
、１５……給気弁部、１６……ピストン、１７…
…排気弁部、１９……補助弁部、２０……ばね、
２３……ピストン室、２４……電磁弁。 Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a sectional view showing a conventional example. 2... Output port, 3... Output chamber, 4... Air supply port, 5... Air supply chamber, 6... Exhaust port, 7...
...Exhaust chamber, 9...Air supply hole, 10...Air supply valve seat, 1
2... Exhaust hole, 13... Exhaust valve seat, 14... Valve body, 15... Air supply valve section, 16... Piston, 17...
...Exhaust valve part, 19...Auxiliary valve part, 20...Spring,
23... Piston chamber, 24... Solenoid valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 出力ポートを有した出力室と、給気ポートを有
し給気孔により出力室に連通する給気室と、排気
ポートを有し給気孔と同軸で給気孔より大径の排
気孔により出力室に連通する排気室と、給気孔の
給気室側開口周囲に設けた給気弁座と、排気孔の
排気室側開口周囲に設けた排気弁座と、給気弁座
に着離して給気弁座を開閉する給気弁部と排気弁
座に着離して排気弁座を開閉する排気弁部を有し
一方向への移動で給気弁座を閉じ排気弁座を開き
他方向への移動で給気弁座を開き排気弁座を閉じ
るよう給気孔、排気孔を貫通して軸方向へ可動に
設けた弁体と、弁体を前記一方向へ押圧移動する
ばねと、電磁弁の切換作動により圧縮空気が導入
排出されるピストン室と、ピストン室に導入され
る圧縮空気に基づく作用力によりばねに抗して弁
体を前記他方向へ押圧移動するピストンと、弁体
の前記一方向への移動で排気弁座が開いた後給気
弁座が閉じる前に給気孔に嵌合して給気孔を閉じ
弁体の前記他方向への移動で給気弁座が開いた後
排気弁座が閉じる前に給気孔から離脱して給気孔
を開くよう弁体に配設した補助弁部とを備えて成
る切換弁。 An output chamber having an output port, an air supply chamber having an air supply port and communicating with the output chamber through an air supply hole, and an air supply chamber having an exhaust port and communicating with the output chamber through an exhaust hole coaxial with the air supply hole and having a larger diameter than the air supply hole. An exhaust chamber that communicates with It has an intake valve part that opens and closes the valve seat, and an exhaust valve part that attaches to and separates from the exhaust valve seat to open and close the exhaust valve seat.Movement in one direction closes the intake valve seat, opens the exhaust valve seat, and moves the valve seat in the other direction. A valve element is movable in the axial direction through the air supply hole and the exhaust hole so as to open the air supply valve seat and close the exhaust valve seat by movement, a spring that presses and moves the valve element in the one direction, and a solenoid valve. A piston chamber into which compressed air is introduced and discharged by the switching operation, a piston which presses and moves the valve body in the other direction against a spring by an acting force based on the compressed air introduced into the piston chamber, and the above-mentioned one side of the valve body. When the valve body moves in the other direction, the exhaust valve seat opens, but before the air supply valve seat closes, it fits into the air supply hole and closes the air supply hole.When the valve body moves in the other direction, the air supply valve seat opens, and then the air supply valve seat opens. A switching valve comprising an auxiliary valve part disposed on the valve body so as to separate from the air supply hole and open the air supply hole before the valve seat closes.