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1. 发明专利

JPH08178198A WIDE AREA MONITORING DEVICE 失效
公开(公告)号：JPH08178198A
公开(公告)日：1996-07-12
申请号：JP32828594
申请日：1994-12-28
申请人： TOKYO GAS CO LTD
发明人： ARAKAWA MASAHIRO , TAKEDA KAZUYOSHI
IPC分类号： F17D5/00 , H04N7/18
摘要： PURPOSE: To detect abnormality, occurring in a wide section to be monitored, in an arbitrary position by a method wherein the projection image of the section to be monitored by a sensor is compared with a projection image simulated in the three-dimensional position of a moving body and the direction angle of a sensor. CONSTITUTION: A moving body 10 is moved in a section to be monitored and by effecting coordinate-conversion of the three dimensional position thereof and the direction angle of a sensor 11, simulation is effected by a three- dimensional CAD device 1. Namely, a projection image 12 formed by the same view point in the section to be monitored by the sensor 11 coincides with a projection image 18 simulated by a three-dimensional CAD device 16 from the direction angle of the sensor 11. Thus, the projection image 12 in the section to be monitored by the sensor 11 at a point of time when abnormality is detected is compared with a projection image 18 simulated in a time limit CAD device 16 from the three-dimensional position of the moving body 10 and the direction angle of the sensor 11. By effecting, for example, differential processing, abnormality is detected to specify a spot where abnormality occurs.

2. 发明专利

JPH0731066A EXPLOSION-PROOF ELECTRIC APPARATUS AND CHARGER THEREOF 失效
公开(公告)号：JPH0731066A
公开(公告)日：1995-01-31
申请号：JP19699793
申请日：1993-07-14
申请人： TOKYO GAS CO LTD
发明人： KASAMA ICHIRO , SHINOHARA MATSUO , TAKEDA KAZUYOSHI , YAMASHITA AKIRA
IPC分类号： H01F38/14 , H02J7/00 , H02J17/00
摘要： PURPOSE:To provide a small-sized, light-weight explosion-proof electric apparatus in which replacement of a battery is not required and which is not necessary to be opened or closed to be charged and a charger thereof. CONSTITUTION:When a coil 10 is externally wound on a core embedded in a housing 6 of an explosion-proof type flash light 1 at the time of charging and the coil 10 is energized by a constant-voltage source 11, a change in a magnetic flux occurs in the core 9 embedded in the housing 6, and a voltage is induced in the coil embedded in the housing 6. The induced voltage is rectified by a full-wave rectifier provided in the housing 6 to charge a storage battery provided in the housing 6.

3. 发明专利

JPH097689A SIMPLE EXPLOSION-PROOF ELECTRIC DRUM 失效
公开(公告)号：JPH097689A
公开(公告)日：1997-01-10
申请号：JP15726195
申请日：1995-06-23
申请人： TOKYO GAS CO LTD
发明人： TAKEDA KAZUYOSHI , YAMASHITA AKIRA
IPC分类号： G08B21/00 , G08B21/16 , H01R13/46 , H01R13/533
摘要： PURPOSE: To provide an electric drum usable in an area having a possibility of abnormal ignition with a simple structure by connecting an earth leakage breaker to non-explosion-proof area, providing a gas detector in explosion-proof area, and interrupting the earth leakage breaker by the gas detection signal. CONSTITUTION: An earth leakage breaker 2 is connected to a power source 1 within non-explosion proof area, an electric drum 10 is placed in the using place of an electric equipment 7 within explosion-proof area while unwinding a power source cable 4 wound on the drum outer circumference of the drum 10, and the plug of the equipment 7 is inserted to a plug socket 6A. When a combustible gas of the regulated sensitivity or more of a gas detector 5A is present in the explosion-proof area where the drum 10 is placed, the detector 5A detects the combustible gas and transmits a gas detection signal to the control earth leakage breaker 2 through a control line 3. Consequently, the breaker 2 is operated to interrupt the feed circuit from the power source 1. When no combustible gas is present in the explosion-proof area, to the contrary, no gas detection signal is outputted from the detector 5A, and the terminals (a), (b) of the breaker 2 remain closed.

4. 发明专利

JPH08338561A ACTUATOR USING ULTRASONIC MOTOR 失效
公开(公告)号：JPH08338561A
公开(公告)日：1996-12-24
申请号：JP16835995
申请日：1995-06-09
申请人： TOKYO GAS CO LTD , FUKOKU KK
发明人： KASAMA ICHIRO , SEKIGUCHI MASARU , TAKEDA KAZUYOSHI , YAMAMOTO TAKAHIDE , TAKAHATA DAISUKE , SUGINOYA HIDEKIYO , SUZUKI ICHIRO , KURUSU HIROYUKI
IPC分类号： F16K31/53 , F16K31/05 , F16K31/50 , H02K7/06 , H02N2/00
摘要： PURPOSE: To provide an actuator for opening and closing a valve which is small-sized and low-priced by using a low-speed and high torque ultrasonic motor. CONSTITUTION: The lower part of a substantially cylindrical support member 9 locked on the lower surface of a casing 2 of an actuator 1 is fitted to a recessed part 50b provided on the upper part of a valve case 50a of a partition valve 50, and a valve shaft 51 is passed through a support member 9 and a casing 2. Plural ultrasonic motors 3 are disposed in the upper and lower positions in the inside of the casing 2, and a substantially cylindrical power shaft 5, the axial movement of which is regulated and the respective ultrasonic motors 3 are gear-connected to each other through a reduction gear structure comprising a large-diameter external gear 6 and a small-diameter gear 7 of the ultrasonic motor 3. The upper screw part 51a of the valve shaft 51 is screwed in a thread groove 30a provided on the inner peripheral surface of an annular projection 30 of the inner periphery of the lower part of the power shaft 5 projected from the lower surface of the casing 2 to be connected to each other, thereby forming a driving force transmitting means for converting the rotary motion of the shaft to the axial reciprocating motion.

5. 发明专利

JPH0894516A INFRARED RAY RADIATION PANEL ASSEMBLY AND GAS DETECTING DEVICE 失效
公开(公告)号：JPH0894516A
公开(公告)日：1996-04-12
申请号：JP23279794
申请日：1994-09-28
申请人： TOKYO GAS CO LTD
发明人： KASAMA ICHIRO , ARAKAWA MASAHIRO , SETO MINORU , TAKEDA KAZUYOSHI
IPC分类号： G01N21/01 , G01N21/35
摘要： PURPOSE: To require no complex control by heating a blackbody panel up to a specified temperature so as to make a specified band of wavelength components of a radiated infrared ray transmit. CONSTITUTION: An infrared ray transmitting glass 2 is fitted on the front face of a box case 1 made of stainless, an infrared ray transmitting glass 3, a blackbody panel 4 for infrared ray radiation, and an electrical heater 5 are fitted thereafter, and the periphery of the panel 4 and the heater 5 and surrounded by adiabatic material 6 so as to constitute an infrared ray radiation panel assembly. The infrared ray transmitting glasses 2, 3 constitute the 3.3mm band infrared ray radiation panel assembly. When the heater 5 is energized so as to heat the panel 4 up to 440 through 450K (about 170 deg.C), only about 3.0 through 3.8μm components out of radiated ray from the panel 4 transmit the glass 3. Next, only about 3.0 through 3.6μm wavelength components transmit the glass 2, and other wavelength components are sharply cut off. The 3.3μm band infrared ray has quite a large absorption coefficient against a CH radical, and can be used for detecting hydrocarbon gas containing the CH group.

6. 发明专利

JPH0861597A EXPLOSION-PROOF GASIFIER FOR LIQUEFIED GAS 失效
公开(公告)号：JPH0861597A
公开(公告)日：1996-03-08
申请号：JP19249894
申请日：1994-08-16
申请人： TOKYO GAS CO LTD
发明人： KASAMA ICHIRO , TANAKA TAKAAKI , TAKEDA KAZUYOSHI , YAMASHITA AKIRA
IPC分类号： F17C9/02
摘要： PURPOSE: To prevent excessive temp. rise in a heater element by forming a gasifier, which heats a liquefied gas and gasifies for inspection of the gas components, from a pipe through which the liquefied gas flows and a thermistor type electric heater device to heat the pipe. CONSTITUTION: An explosion-proof gasifier 1 to gasify the liquefied gas for inspection of the composition is composed of pipes 2 installed inside meanderingly, heat conduction plates 4, heater elements 6, heat insulative material 8, thermostat 10, control part 12, etc. The pipes 2 are made of stainless steel and located between two heat conduction plates 4, and small pieces 9 of aluminum, etc., having a high thermal conductivity are stopped between the pipes 2 and in the space to the heat conduction plates 4. Each plate 4 made from an aluminum plate is provided on one surface with a plurality of heater elements 6. When the temp. of the gas flowing out upon gasification exceeds the specified max. value (for example, 20 deg.C) and when the temp. of the plate 4 has exceeded its allowable value, the power to the heater elements 6 is shut off by the control part 12.

7. 发明专利

JPH0731065A EXPLOSION-PROOF ELECTRIC APPARATUS AND CHARGER THEREOF 失效
公开(公告)号：JPH0731065A
公开(公告)日：1995-01-31
申请号：JP19699593
申请日：1993-07-14
申请人： TOKYO GAS CO LTD
发明人： KASAMA ICHIRO , SHINOHARA MATSUO , TAKEDA KAZUYOSHI , YAMASHITA AKIRA
IPC分类号： H01F38/14 , H02J7/00 , H02J17/00
摘要： PURPOSE:To provide a small-sized, light-weight explosion-proof electric apparatus in which replacement of a battery is not required and which is not necessary to be opened or closed to be charged and a charger thereof. CONSTITUTION:When a core 9 is externally inserted into a coil embedded in a housing 6 of an explosion-proof type flash light 1 at the time of charging and a coil wound partly on the core 9 is energized by a constant-voltage source 11, a change in a magnetic flux occurs in the core 9, and a voltage is induced in the coil embedded in the housing 6. The induced voltage is rectified by a full-wave rectifier provided in the housing 6 to charge a storage battery provided in the housing 6.

8. 发明专利

JPH09185777A METHOD AND DEVICE FOR WIDE-AREA TRESPASS MONITORING 失效
公开(公告)号：JPH09185777A
公开(公告)日：1997-07-15
申请号：JP34299795
申请日：1995-12-28
申请人： TOKYO GAS CO LTD
发明人： ARAKAWA MASAHIRO , TAKEDA KAZUYOSHI , TAKEHARA SHUNEI
IPC分类号： H04N7/18 , G08B13/183 , G08B13/196
摘要： PROBLEM TO BE SOLVED: To prevent misdetection caused by a small animal or the swinging of trees and plants by directing the visual field of a camera to the range corresponding to a infrared-ray beam which is cut off and obtaining a monitor image when the cutoff of the infrared-ray beam is detected. SOLUTION: When a suspicious man tries to enter a monitored area A and crosses the infrared-ray beam 3a from, for example, a light emission part 1a to a light reception part 2a, this infrared ray is cut off and does not reaches the light reception part 3, so a signal corresponding to the cutoff is generated by the light reception part 2a. Therefore, a monitor device main body 7 can detect the entry of the suspicious man in the range of the infrared-ray beam 3a, i.e. between the light emission part 1a and light reception part 2a. Thus, the monitor device main body A detects the possibility of trespass sends control signals to a camera support device 5 and directs, the visual field 6 of the camera 4 to the range from the light emission part 1a to the light reception part 2a, and gathers and processes an image of specific resolution to monitor the area.

9. 发明专利

JPH08296757A VALVE ACTUATOR USING ULTRASONIC MOTOR 失效
公开(公告)号：JPH08296757A
公开(公告)日：1996-11-12
申请号：JP9911995
申请日：1995-04-25
申请人： TOKYO GAS CO LTD
发明人： KASAMA ICHIRO , SEKIGUCHI MASARU , TAKEDA KAZUYOSHI , YAMAMOTO TAKAHIDE
IPC分类号： F16K31/02 , F16K31/54 , H02N2/00
摘要： PURPOSE: To provide a valve actuator which can be attached simply, easily, and inexpensively to a pipe valve, and can be manufactured in light and small explosionproof structure, and is simple and easy of control and has low-speed high-torque performance. CONSTITUTION: A valve actuator, which is mounted on a partition valve having a valve body 3 for controlling the flow of the fluid, moving up and down with in a valve box 2, a valve rod 4 attached to the valve body at a right angle in the direction of the flow of fluid, and a sleeve 8 being supported rotatably by the valve box and besides is equipped with a threaded part to engage with the valve rod, is equipped with a gear 9A fixed on the same axis as the sleeve to it, a pinion 11 engaging with the gear, and an ultrasonic motor 15 fixed face to face to the valve box 2, in a pair above and below the pinion 11, and the output shaft 16 of the ultrasonic motor is engaged, on the same axis, with the shaft of the pinion 11.

10. 发明专利

JPH08273728A TERMINAL DEVICE 失效
公开(公告)号：JPH08273728A
公开(公告)日：1996-10-18
申请号：JP7618195
申请日：1995-03-31
申请人： TOKYO GAS CO LTD
发明人： YAMASHITA AKIRA , TAKEDA KAZUYOSHI
IPC分类号： H01R11/26
摘要： PURPOSE: To provide a terminal device with no falling down of a bolt and a nut for terminal connection during connection work and no need to prepare a set of bolt and nut each time by integrally constituting a terminal, the bolt, and the nut. CONSTITUTION: A terminal device consists of the following (a) and (b); (a) a bolt terminal 10 integrally formed in such a way that a terminal plate 12 is fixed to the tip of a cable 11, and a bolt 13 is fixed to the terminal plate 12 so as to be capable of rotating; (b) a nut terminal 16 formed in such a way that a terminal plate 18 and a nut 19 are integrally fixed to the tip of a cable 17.

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