JPS63132101U

JPS63132101U -

Info

Publication number: JPS63132101U
Application number: JP2480887U
Authority: JP
Priority date: 1987-02-20
Filing date: 1987-02-20
Publication date: 1988-08-30

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例である手動残圧排出
弁が設けられたエア回路の一例を示す回路図であ
る。第２図は第１図の手動残圧排出弁を示す縦断
面図である。第３図は第１図の手動残圧排出弁の
平面図である。第４図は第２図における―断
面図である。第５図は第２図における―断面
図である。第６図は本考案の他の実施例を示す縦
断面図である。第７図は第６図における―断
面図である。第８図はチエツクバルブによつて残
圧を排出する従来のエア回路の一例を示す回路図
である。第９図はダブルチエツクバルブによつて
残圧を排出する従来のエア回路の一例を示す回路
図である。１０，４６：エアシリンダ（流体アクチユエー
タ）、２４，２６：圧力室、３０：出力ロツド（
出力部材）、５０，９０：手動排気弁（手動残圧
排出弁）、５２，１０２：バルブ本体、５４，９
２：第１入力ポート、５６，９４：第２入力ポー
ト、５８，９８：排出ポート、６２：スプール弁
子（開閉弁子）、７２，１０４：ノブ（操作部材
）、１１０：ポペツト弁子（開閉弁子）。 FIG. 1 is a circuit diagram showing an example of an air circuit equipped with a manual residual pressure discharge valve according to an embodiment of the present invention. FIG. 2 is a longitudinal sectional view showing the manual residual pressure discharge valve of FIG. 1. FIG. 3 is a plan view of the manual residual pressure release valve of FIG. 1. FIG. 4 is a cross-sectional view of FIG. 2. FIG. 5 is a cross-sectional view of FIG. 2. FIG. 6 is a longitudinal sectional view showing another embodiment of the present invention. FIG. 7 is a cross-sectional view of FIG. 6. FIG. 8 is a circuit diagram showing an example of a conventional air circuit in which residual pressure is discharged by a check valve. FIG. 9 is a circuit diagram showing an example of a conventional air circuit that discharges residual pressure using a double check valve. 10, 46: Air cylinder (fluid actuator), 24, 26: Pressure chamber, 30: Output rod (
Output member), 50, 90: Manual exhaust valve (manual residual pressure discharge valve), 52, 102: Valve body, 54, 9
2: First input port, 56, 94: Second input port, 58, 98: Discharge port, 62: Spool valve (opening/closing valve), 72, 104: Knob (operating member), 110: Poppet valve ( opening/closing valve).

Claims

[Claims for Utility Model Registration] (1) Manual residual pressure discharge for discharging residual pressure in a fluid actuator whose output member is actuated by selectively supplying pressure fluid into a pair of pressure chambers. A valve body comprising a pair of first and second input ports that communicate with the pair of pressure chambers, respectively, and an exhaust port that is open to the atmosphere; and a valve body disposed within the valve body. a closed position in which the first input port and the second input port are blocked from communicating with each other and the first input port and the second input port are blocked from communicating with the discharge port;
an on-off valve that can be moved between an open position that allows communication between an input port and a second input port and the discharge port; and a valve that is manually operated to move the on-off valve to the open position. A manual residual pressure release valve characterized by having an operation member that moves the manual residual pressure discharge valve. (2) The manual residual pressure discharge valve according to claim 1, wherein the first input port and the second input port are each communicated with pressure chambers of a plurality of fluid actuators.