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1. 发明专利

JPH0560157B2 失效
公开(公告)号：JPH0560157B2
公开(公告)日：1993-09-01
申请号：JP12641083
申请日：1983-07-11
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： HORII HIROSHI , FUJEDA HIROSHI , OKAMOTO MASAYUKI , SHIRASAWA TADANORI
IPC分类号： G08B21/00 , G08B21/16 , G08B23/00

2. 发明专利

JPH0472177B2 失效
公开(公告)号：JPH0472177B2
公开(公告)日：1992-11-17
申请号：JP11372283
申请日：1983-06-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJEDA HIROSHI , SAKA TATSUO , SHIRASAWA TADANORI , OKAMOTO MASAYUKI
IPC分类号： G01F3/22 , G01F15/00 , G01F15/04 , G01F15/06

3. 发明专利

JPH0465327B2 失效
公开(公告)号：JPH0465327B2
公开(公告)日：1992-10-19
申请号：JP19115583
申请日：1983-10-13
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJEDA HIROSHI , SAKA TATSUO , SHIRASAWA TADANORI , OKAMOTO MASAYUKI
IPC分类号： G01F3/22 , G01F9/00 , G01F15/04 , G01F15/06

4. 发明专利

JPH0152635B2 失效
公开(公告)号：JPH0152635B2
公开(公告)日：1989-11-09
申请号：JP17551282
申请日：1982-10-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAMOTO YOSHIO , YAMANOCHI SHUJI , SHIRAI SHIGERU , OKAMOTO MASAYUKI
IPC分类号： F16K31/06 , F16K31/11 , F17C13/12

5. 发明专利

JPS6372979A GAS SHUT-OFF VALVE 失效
公开(公告)号：JPS6372979A
公开(公告)日：1988-04-02
申请号：JP21660186
申请日：1986-09-12
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OHASHI NORIYOSHI , OKAMOTO MASAYUKI , YAMAGUCHI MASAKI
IPC分类号： F16K31/06
摘要： PURPOSE:To prevent a malfunction due to an external impact and the like by taking a large difference between an adsorption force in a zero current and that at an operation point. CONSTITUTION:When an electric current runs instantaneously in an electromagnetic coil 6 and releases adsorption with a plunger 9 and the magnetic force of a permanent magnet 2 on a core piece 3, a magnetic flux generated by the electric current running in the coil 6 flows in the plunger 9, the core piece 3, a heel piece 7a, a yoke 1 and another heel piece 7b. Therefore, magnetic reluctance becomes small by a magnitude corresponding to the magnetic current passage of the heel piece 7a, when viewed from the coil 6. As a result, a magnetic flux generated by the coil 6 passes the adsorption surface of the plunger 9 and the core piece 3 by a magnitude larger than a case without a heel piece, and it becomes possible to obtain a larger difference between an adsorption force at a zero current value and that at an operation point.

6. 发明专利

JPS6352031A GAS CUTOFF DEVICE 失效
公开(公告)号：JPS6352031A
公开(公告)日：1988-03-05
申请号：JP19750486
申请日：1986-08-22
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SHIRASAWA TADANORI , SAKATA MASAAKI , OKAMOTO MASAYUKI
IPC分类号： F16K17/36 , G01M3/00 , G01M3/04 , G01M3/18 , G01M3/28
摘要： PURPOSE:To improve the reliability of a gas cutoff device by providing a large current circuit which supplies a current smaller than a current supplied to a cutoff valve driving circuit and composing this large current circuit of a display circuit. CONSTITUTION:The voltage across a battery 8 when an LED 11 illuminates is detected by a detecting circuit 9. At this time, the voltage is much higher than the operating guarantee voltage of a cutoff valve 7 at the time of control circuit backup operation, but becomes extremely low when the cutoff valve is driven and is sometimes lower than the operation guarantee voltage of the cutoff valve 7 when the LED 11 illuminates. When the LED 11 illuminates, the current is smaller than that of the cutoff valve 7, so it never becomes than that when the cutoff valve is driven, but a voltage drop similar to that when the cutoff valve is driven is caused. For the purpose, the voltage across the voltage 8 at the time of LED driving right before the voltage at the time of cutoff valve driving reaches the cutoff valve operation guarantee voltage is checked previously and the detection level of the circuit 9 is set to this voltage. Consequently, even when the battery 8 deteriorates too much to drive the cutoff valve 7, the LED 11 is turned on and the current voltage across the voltage 8 is detected by the circuit 9 to indicate that to a consumer by driving a display circuit 10.

7. 发明专利

JPS6334386A GAS SHUT-OFF VALVE 失效
公开(公告)号：JPS6334386A
公开(公告)日：1988-02-15
申请号：JP17693086
申请日：1986-07-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OKAMOTO MASAYUKI , FUJIWARA YOSHIMITSU , YAMAGUCHI MASAKI , OHASHI NORIYOSHI
IPC分类号： F16K31/06
摘要： PURPOSE:To operate the valve in the caption through application of nearly the same voltage in both valve opening and closing, by applying voltage to a driving coil for generating magnetic flux in a movable attractor to cancel the flux on one side due to a permanent magnet and to increase it on the other side. CONSTITUTION:A pair of cylindrical permanent magnets 8 are provided on a fixed attractor 5 in such a way as the same polarity oppose to each other. When a voltage is applied to a driving coil 3 to generate magnetic flux in the direction of an arrow 18, an adsorptive face (1a) and its counterpart, the fixed attractor 5 attract each other to set a valve in close state because of an increase in magnetic flux in the direction 16 of flux together with cancellation of the one in the direction 17 of flux. In the opposite way, when the voltage is applied to the driving coil 3 to generate flux in the direction of arrow 19, the actions in both flux direction 16, 17 are set inways respectively and the valve returns to its open state.

8. 发明专利

JPS62246671A SELF-RETENTION TYPE GAS CUTOFF VALVE 失效
公开(公告)号：JPS62246671A
公开(公告)日：1987-10-27
申请号：JP8896786
申请日：1986-04-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： OKAMOTO MASAYUKI
IPC分类号： F16K31/06
摘要： PURPOSE:To prevent incorrect functioning even if chocks are inflicted from outside by fixing a rod of a nonmagnetic material on the side end part of an attraction surface of a plunger with its tip provided with a valve rubber. CONSTITUTION:Drilling a through hole in the center of an attraction piece 7, a nonmagnetic material rod 12 inserted through a through hole is fixed to the side end part of the attraction surface of a plunger 2 provided with a valve rubber 1. The tip of the rod is provided with a fixed piece 13 of a nonmagnetic material and having a larger diameter than that of the through hole. With this constitution, the fixed piece 13 provided on the rod 12 passing through and appearing out of a through hole of an attraction piece 4 plays a role of a stopper capable of restricting the travel of the plunger 2. Accordingly, there is no possibility of the plunger 2, the valve rubber 1, etc. jumping out even if a cutoff valve, when it is alone, incorrectly functions due to shocks.

9. 发明专利

JPS6254408A SELF-HOLD SOLENOID 失效
公开(公告)号：JPS6254408A
公开(公告)日：1987-03-10
申请号：JP19353085
申请日：1985-09-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： FUJIWARA YOSHIMITSU , OKAMOTO MASAYUKI , FURUYA TOSHIYUKI
IPC分类号： H01F7/16 , F16K31/06
摘要： PURPOSE:To improve a level in detection, by forming a projecting part on a mounting hole part of a valve member inserted into the mounting axis part of a movable iron core so that it fits in the lower end of a receiving-hole part in a valve-supporting member surrounding an outside of the mounting hole part. CONSTITUTION:A projecting part 15 fitted in the lower end of a receiving-hole part 7a in a valve-supporting member 7 is formed at a mounting hole part 9a of a valve member 9. The projecting part 15 of the valve member 9 is made about 0.1-0.3mm in height with a forming metal mold undercut. Because the projecting part 15 at the mounting hole part 9a is fitted from the lower side to the receiving-hole part 7a of the valve-supporting member 7 on the back surface of the valve member 9, an axis-directional motion at the inner diameter side of the valve member 9 can be stopped even while gas pressure being applied, to improve a level in detecting leakage. Hence, the valve member mounted at the mounting axis part of the movable iron core is prevented from moving in the axial direction, so that the detected level of leakage can be improved.

10. 发明专利

JPS61263463A GAS BLOCKING APPARATUS 失效
公开(公告)号：JPS61263463A
公开(公告)日：1986-11-21
申请号：JP10423285
申请日：1985-05-16
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOKYO GAS CO LTD
发明人： FUJIEDA HIROSHI , OKAMOTO MASAYUKI , SHIRASAWA TADANORI , SAKATA MASAAKI , FUJIMOTO TATSUO , OTANI TSUTOMU , KOJIMA TERUHISA
IPC分类号： A62C2/04 , F23N5/18

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