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1. 发明专利

JPH06170707A DEVICE FOR POLISHING INSIDE OF PIPE 失效
公开(公告)号：JPH06170707A
公开(公告)日：1994-06-21
申请号：JP10398192
申请日：1992-03-31
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , NIPPON KOKAN KK , SUMITOMO METAL IND , NIPPON STEEL CORP
发明人： KOBORI TAKASHI , OZAWA MICHIO , YAMAMOTO YASUSHI , KURODA TAKASHI , TSUTSUMINO SHIGETOSHI , YANO YOSHITAKA
IPC分类号： B24B5/40 , B61B13/10 , B62D57/024 , F16L55/18
摘要： PURPOSE:To provide a device for polishing the inside of a pipe, which can be constructed so as to save space and can move an abrasive tool smoothly in the direction of the periphery, radius and axis of the pipe. CONSTITUTION:A device body 2 is fixed inside a pipe 1 by means of a fixing foot 11. The position of an abrasive tool 4 in the peripheral direction of the pipe 1 is determined by turning an arm 6 together with a frame in the peripheral direction of the pipe 1. The position of the abrasive tool 4 in the axial direction of the pipe 1 is determined by moving the abrasive tool 4 in the axial direction of the pipe 1 by means of an axial direction moving device 8b arranged on the arm 6. The abrasive tool 4 is moved in the radial direction of the pipe 1 by moving the arm 6 radially while rotating the abrasive tool 4 by driving a polishing motor 5, and polishing operation is performed by pushing the abrasive tool 4 against the inner peripheral surface of the pipe 1.

2. 发明专利

JPH05133972A SENSOR FOR DETECTING FLOW VELOCITY AND FLOWING DIRECTION OF FLUID 失效
公开(公告)号：JPH05133972A
公开(公告)日：1993-05-28
申请号：JP30006091
申请日：1991-11-15
申请人： TOKYO GAS CO LTD
发明人： KOBORI TAKASHI
IPC分类号： G01P5/12 , G01P13/00
摘要： PURPOSE:To reduce the size of the title sensor and improve the performance of the sensor by respectively fitting thermistors for temperature compensation and flowing speed sensors to a central support and side supports. CONSTITUTION:Flow velocity sensors 5 and 5' fitted to the upper end faces of side supports 3 and 3' use hot thermistors the resistances of which largely change against temperature and which are incorporated in one side of a bridge. When a flow collides with the hot thermistors and the thermistors are cooled, a required current flows to a bridge circuit so that the thermistors can be maintained at their initial temperatures. When the current is measured, the flow velocity of the flow can be detected. Although the quantities of heat removed from the sensors 5 and 5' due to the temperature change of a gas vary, thermistors 4 and 4' for temperature compensation fitted to the upper end face of the central support 2 compensate the removed heat. Therefore, this sensor can be miniaturized and the performance of the upstream-side sensor is especially improved, since the number of supports can be reduced to a half and the central support 2 functions as a shielding plate.

3. 发明专利

JPH04181097A DEVICE PARTIALLY REPAIRING PIPE FROM INSIDE 失效
公开(公告)号：JPH04181097A
公开(公告)日：1992-06-29
申请号：JP30907190
申请日：1990-11-15
申请人： TOKYO GAS CO LTD , ASHIMORI IND CO LTD
发明人： FUJITA AKITAKA , KOBORI TAKASHI , IMOTO TAKAYOSHI
IPC分类号： F16L55/12 , F16L55/16 , F16L55/18
摘要： PURPOSE:To manufacture a device small in the peripheral direction and miniaturize it by forming a circular projection serving as a piston in a void between the outer tube of a blocking member and an expansion film, allowing the blocking member to function as a cylinder, and feeding the fluid of a fluid operation chamber into an airtight space via the first and second inflow holes. CONSTITUTION:A circular projection 12 is provided at the tip section of a tube body 11. A fluid pressure operation chamber 5' is formed on the circular projection 12, and a pressure receiving face 4a formed on a blocking member 1 exists on the fluid pressure operation chamber 5'. Front end sections of the outer tube 2 and inner tube 3 of the blocking member 1 are connected by a cover member 4, and a cylinder chamber 5 is formed in the space. A fluid passage 19 is bored on the tube body 11, and the second inflow hole 20 is formed through the tube body 11. The first inflow hole 6 and a recessed groove 7 are carved at the tip of the inner tube 3. The recessed groove 7 and a protruded member 26 constitute a stopper. The blocking member 1 is coupled with the tube body 11. The device can be miniaturized, and it can be used for a small- diameter pipe.

4. 发明专利

JPH0429017A METHOD AND INSTRUMENT FOR MEASURING FLOW VELOCITY AND FLOW DIRECTION OF FLUID 失效
公开(公告)号：JPH0429017A
公开(公告)日：1992-01-31
申请号：JP13613890
申请日：1990-05-25
申请人： TOKYO GAS CO LTD
发明人： KOBORI TAKASHI
IPC分类号： G01P5/12 , G01F1/68 , G01F1/688 , G01F1/69 , G01F1/698 , G01P13/00
摘要： PURPOSE:To measure the velocity and direction of a flow in a live tube by providing a couple of heating element for detection across a shield member in the axial direction of a fluid supply tube and measuring them with signals from heat-ray type flow velocity sensors corresponding to the heating element for detection. CONSTITUTION:The couple of heating elements 2a and 2b for detection and the shield member 3 are provided in the fluid supply tube 12. The heat of the heating elements 2a and 2b is absorbed by the fluid according to the flow velocity and the elements are cooled, so sensor driving circuits 6a and 6b corresponding to the heating elements 2a and 2b output signals corresponding to the flow velocity of the fluid. The output voltages of the circuits 6a and 6b are compared by a comparator 8; when the fluid flows as shown by an arrow, the output voltage of the circuit 6b becomes higher, the comparator 8 outputs a signal indicating the heating element 2b is on an upstream side, and a changeover switch 9 selects the side of the circuit 6b. Then its output voltage is supplied to a processor 11 through a squaring device 10 to measure the means flow velocity at specific intervals of time.

5. 发明专利

JPH074942A MEASURING METHOD OF INSIDE DIAMETER 失效
公开(公告)号：JPH074942A
公开(公告)日：1995-01-10
申请号：JP16855193
申请日：1993-06-15
申请人： TOKYO GAS CO LTD
发明人： SUYAMA KIICHI , FURUSAWA HAJIME , HOSOHARA YASUHARU , KOBORI TAKASHI
IPC分类号： G01B15/00 , G01N22/02 , G01V3/12
摘要： PURPOSE:To provide a measuring method in which the inside diameter of a buried pipe such as a gas pipe or the like can be measured easily and surely. CONSTITUTION:A transmitter 12 and a receiver 15 are inserted respectively into both sides of a pipe 2 to be measured. Radio waves at a prescribed frequency band are transmitted continuously from the transmitter 12, and they are received by the receiver 15. The receiver 15 investigates the strength of the received radio waves, and it finds a frequency at a point at which the strength is fluctuated largely. Then, the frequency at the point is substituted in the relational expression of the frequency to the inside diameter of the pipe: (inside diameter) = (light velocity)/(1.706 X frequency), and the smallest inside diamter of the pipe in a part to be inspected is computed.

6. 发明专利

JPH0694626A TRUCK TO BE DRIVEN INSIDE PIPE 失效
公开(公告)号：JPH0694626A
公开(公告)日：1994-04-08
申请号：JP26952892
申请日：1992-09-11
申请人： TOKYO GAS CO LTD , SUMITOMO METAL IND
发明人： FUJITA AKITAKA , KOBORI TAKASHI , NAKAJIMA KIMIO
IPC分类号： G01N21/88 , G01N21/954
摘要： PURPOSE:To improve a running performance further in conformity with pipings of various pipe diameters and to facilitate also pullback and the like at the time of emergency by making the pressing force of a crawler adjustable by a remote control, in a running system by the crawler. CONSTITUTION:A drive motor 31 of a driving device 30, a gear case 32 and a cylinder unit 21 of a pressing device 20 are joined linearly and thereby a truck body 2 is constructed. Crawler devices 15 disposed in a plurality of sets around this truck body 2 are joined so that they can be driven by the driving device 30, and the crawler devices 15 are joined to the truck body 2 so that they can be moved in parallel thereto by a parallel link mechanism 10. Besides, the crawler devices 15 are joined to the truck body 2 through the intermediary of an air cylinder 22 of the pressing device 20, a slider 25 and pressing links 27 and an air pressure of this air cylinder 22 is controlled by a pressing control device so that a pressing force is controlled to be variable.

7. 发明专利

JPH06156269A INTRA-TUBE RUNNING DEVICE 失效
公开(公告)号：JPH06156269A
公开(公告)日：1994-06-03
申请号：JP10398092
申请日：1992-03-31
申请人： TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , NIPPON KOKAN KK , SUMITOMO METAL IND , NIPPON STEEL CORP
发明人： KOBORI TAKASHI , OZAWA MICHIO , YAMAMOTO YASUSHI , KURODA TAKASHI , TSUTSUMINO SHIGETOSHI , YANO YOSHITAKA
IPC分类号： B61B13/10 , B62D57/024 , F16L55/00
摘要： PURPOSE:To provide an intra-tube running device which can run with a minor traction force even in an abnormal running condition where the wheel is positioned at the bottom of the tube. CONSTITUTION:Wheels 3 whose outer surface are formed spherical are installed in the front and the rear of a running body 2 which is mobile inside a tube 1, wherein the rotary shaft 4 of each wheel 3 is inclined a specified angle thetato the direction perpendicular to the axis of the tube 1. The range of the inclining angle theta is 10-20deg.

8. 发明专利

JPH0640365A CONNECTING JOINT FOR INTRA-CONDUIT TRAVELING BOGIE 失效
公开(公告)号：JPH0640365A
公开(公告)日：1994-02-15
申请号：JP7112392
申请日：1992-03-27
申请人： NIPPON STEEL CORP , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , NIPPON KOKAN KK , SUMITOMO METAL IND
发明人： YANO YOSHITAKA , KOBORI TAKASHI , OZAWA MICHIO , YAMAMOTO YASUSHI , KURODA TAKASHI , TSUTSUMINO SHIGETOSHI
IPC分类号： B62D57/024 , B60D1/14 , B61G1/00 , F16L55/00
摘要： PURPOSE:To provide the connecting joint of an intra-conduit traveling bogie capable of smoothly traveling long bogie units in the tube axial direction in a bent conduit having a small radius of curvature. CONSTITUTION:Bogie units 1, 2 have moving wheels 8 and are connected via circular arc-shaped round bars 4, 6 at both ends and a connecting bars 5. The center axis of the front round hole 7 of the connecting bar 5 and the center axis of the rear round hole 8 are made perpendicular to each other, and the circular arc-shaped round bars 4, 6 are movably inserted into both round holes 7, 8.

9. 发明专利

JPH0640364A POSITIONING DEVICE FOR INTRA-CONDUIT WORKING BOGIE 失效
公开(公告)号：JPH0640364A
公开(公告)日：1994-02-15
申请号：JP7112292
申请日：1992-03-27
申请人： NIPPON STEEL CORP , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , NIPPON KOKAN KK , SUMITOMO METAL IND
发明人： YANO YOSHITAKA , KOBORI TAKASHI , OZAWA MICHIO , YAMAMOTO YASUSHI , KURODA TAKASHI , TSUTSUMINO SHIGETOSHI
IPC分类号： B62D57/024 , B61B13/10 , F16L55/00
摘要： PURPOSE:To provide a positioning device capable of freely selecting the arrangement of a working bogie traveling in a conduit and capable of being applied to the small-diameter conduit. CONSTITUTION:Loop-like ropes 5 are fitted to pulleys 3, 4 arranged at the front and rear of an intra-conduit working bogie connected with multiple bogie units in the tube axial direction of a conduit, the bogie units are fixed to one of the rope loops, and at least one of the bogie units is made capable of being self-propelled.

10. 发明专利

JPH05141584A PIPE INSIDE INSPECTION SYSTEM 失效
公开(公告)号：JPH05141584A
公开(公告)日：1993-06-08
申请号：JP32706591
申请日：1991-11-15
申请人： TOKYO GAS CO LTD
发明人： KOBORI TAKASHI
IPC分类号： B61B13/10 , F16L55/00 , F16L55/32 , G01N21/84 , G01N21/88 , G01N21/954 , G01N29/04 , G01N29/26
摘要： PURPOSE:To make passing of an obstacle smoothly without trouble by locating drive wheels which enable pressing and release of pressing against a pipe inside wall in a self-propelling pipe inside inspection device, and releasing the pressing of the wheels of which travel is obstructed and pressing the wheels of which travel is not obstructed. CONSTITUTION:A pipe inside inspection device 1 is controlled by a control device 2 and a computer 3. Also it comprises a TV camera block 7 and forward an backward carriage blocks 8 and 11. Also, in the forward and backward carriage blocks 8 and 11, multiple carriage units 16 to 18 and 19 to 21 are driven by carriage drive units 9 and 10, respectively. In this case, a drive wheel which enables pressing and release of pressing against an inner wall of pipes 22 to 26 and joint sections 23 and 25 are provided on the carriage units 16 to 21, respectively. If travel of a pipe inside inspection device 1 is blocked by any obstruction, pressing against the inner wall of the wheel of which travel is obstructed is released. On the other hand, the wheel of which travel is not obstructed is driven to pass through the obstacle.

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