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11. 发明专利

JPH06281074A PIPE JOINT 失效
公开(公告)号：JPH06281074A
公开(公告)日：1994-10-07
申请号：JP7038893
申请日：1993-03-29
申请人： FUJII GOKIN SEISAKUSHO KK , OSAKA GAS CO LTD
发明人： YAMAOKA MAMORU , NAKANISHI TAKAYUKI , KINOSHITA HIROO , SAKAMOTO TOSHIAKI , TOMITA AKIO
IPC分类号： F16L19/06 , F16L37/08
摘要： PURPOSE:To enhance engaging/holding force while securing easiness of the connection in a pipe joint wherein a joint main body is engaged with a pipe to be connected by pressing the pipe to be connected into the joint main body. CONSTITUTION:A taper surface T to be extended in the insertion direction is formed on the inner peripheral surface of an insertion side cylinder part 2 of a joint main body 1, and a ring seal S is provided in the joint main body 1, moreover an engaging body 4 housed axially movably in the taper surface T is taken as an annular body composed of a pair of semi-circular arc-like half bodies 4a, 4a mutually positioned so as to be opposed to each other. And these half bodies 4a, 4a are energized in the joint direction by a circumferetially attached elastic ring 5 and the whole of these half bodies 4a, 4a are energized to the insertion end side. An engaging diameter part 40 protruded from the inner peripheral surface is provided on each half body 4a, and the radius of the engaging diameter part 40 is set a slightly smaller than on the outer peripheral surface of the pipe to be connected P.

12. 发明专利

JPH06213337A SLIDE SURFACE STRUCTURE OF GAS COCK AND ITS PROCESSING METHOD 失效
公开(公告)号：JPH06213337A
公开(公告)日：1994-08-02
申请号：JP14224893
申请日：1993-06-14
申请人： FUJII GOKIN SEISAKUSHO KK , OSAKA GAS CO LTD , TOHO GAS KK
发明人： OGAWA MASAHIRO , TAKEMURA KOJI , NAKANISHI TAKAYUKI , TANAKA NOBUO , KOKETSU YASUO
IPC分类号： F16K5/02
摘要： PURPOSE:To provide a gas cock which has a sufficient grease retaining force at the slide surface and sufficient mechanical strength and which can prevent exfoliation of a porous layer and deterioration of the surface accuracy. CONSTITUTION:A plug 2 is accommodated slidably in the body 1 of a gas cock, and a porous layer 3 is formed on at least one of the slide surfaces of the cock body 1 and plug 2, and the slide surfaces are coated with grease for sealing. The cock body 1 or plug 2 as part where porous layer is formed, is made of an alloy consisting of a plurality of metals having different melting point or seething point, and the porous layer 3 formed on the alloy surface is embodied in such a constitution as having got rid of metal components of low melting point or seethiong point.

13. 发明专利

JPH0674379A UNIVERSAL JOINT 失效
公开(公告)号：JPH0674379A
公开(公告)日：1994-03-15
申请号：JP14513293
申请日：1993-06-16
申请人： FUJII GOKIN SEISAKUSHO KK , OSAKA GAS CO LTD
发明人： MIYAI YOSHITAKA , TAMAKI YASUTOSHI , NAKANISHI TAKAYUKI , TANAKA NOBUO
IPC分类号： F16L21/02 , F16L21/08 , F16L27/08
摘要： PURPOSE:To secure a good sealing performance of a universal joint even in case its packing seal is damaged by excessive heat application, wherein the universal joint is of such a structure that the fit part of the two members is made airtight with packing seal in which a second tube member in straight form is fitted in connection with the first tube member in straight form in such a way as capable of relative rotation and in the condition that slipping-off is prevented. CONSTITUTION:In the fit part a sealing means consisting of a metal ring member having small wall thickness is tightly fitted between the inserting cylinder part 11 of the first tube member and the base end of the coupling cylinder part 21 of the second tube member which is fitted on the inserting cylinder part 11 in the condition that slipping-off is prevented. The sealing means may be of such a structure that it has a U-section and is fitted by pressure between the two members concentrically, that is fitted tightly on the opposed cylinder part protruding from the two members, or that a small wall thickness cylindrical part protruding at the other side is tightly fitted on the cylindrical part furnished on the other side.

14. 发明专利

JPH06281071A JOINT FOR FLEXIBLE PIPE 失效
公开(公告)号：JPH06281071A
公开(公告)日：1994-10-07
申请号：JP7038793
申请日：1993-03-29
申请人： FUJII GOKIN SEISAKUSHO KK , OSAKA GAS CO LTD
发明人： YAMAOKA MAMORU , NAKANISHI TAKAYUKI , KINOSHITA HIROO , SAKAMOTO TOSHIAKI , TOMITA AKIO
IPC分类号： F16L33/00 , F16L33/26 , F16L33/28
摘要： PURPOSE:To enhance the anti-slipping off strength of a flexible pipe and also to make the connection easy in a joint for the flexible pipe wherein a terminal of the flexible pipe having the structure wherein angled parts are paralelly continued at the fixed distance is engaged with an engaging element provided in the joint main body so as to connect the flexible pipe in the anti-slipping off state. CONSTITUTION:A flange 2a is extended to the release end inner peripheral side of an insertion side cylinder part 2 of a joint main body 1 so as to take the inner peripheral surface as a taper surface T to be contracted toward the release end side, and a cylindrical seal to be hermetically fitted around the top end of a flexible pipe P to be inserted therein is provided, moreover an engaging element 3 internally is contact with a taper surface T, and capable of being axially moved freely is provided. And the engaging element 3 is held by an annular body 5 whose inside diameter is slightly larger than that of the angled part P1, and the annular body 5 is energized to the release end side of the insertion side cyilinder part 2, thereby the engaging element 3 can be extended and contracted in the radius direction of the insertion side cylinder part 2.

15. 发明专利

JP2004019869A Fluid circulation restraining structure, fluid circulation restraining tool, and fluid device 审中-公开
公开(公告)号：JP2004019869A
公开(公告)日：2004-01-22
申请号：JP2002178688
申请日：2002-06-19
申请人： Osaka Gas Co Ltd , 大阪瓦斯株式会社
发明人： ONISHI HISAO , NAKANISHI TAKAYUKI
IPC分类号： A62C2/04 , F16K17/38 , F16L55/00 , F16L55/12
摘要： PROBLEM TO BE SOLVED: To provide a fluid circulation restraining structure by which the flow of a fluid can be restrained as required at the time of the occurrence of a fire by avoiding influences caused by the flow of the fluid and the gravity to the utmost, a fluid circulation restraining tool, and a fluid device. SOLUTION: The fluid circulation restraining structure is so constituted that a thermally expanding member 5 for restraining the flow of the fluid by being expanded by heating is arranged in a state not obstructing the flow in the vicinity of the flow of the fluid and the expansion of the thermally expanding member 5 is positively guided to the side in the direction restraining the flow by providing an expansion regulating member 10 for regulating the expansion direction of the thermally expanding member 5. The fluid circulation restraining tool is provided with the fluid circulation restraining structure and has a mounting means 9 fittable to the inner face of a fluid pipe P in which the fluid flows. The fluid device has the fluid circulation restraining structure provided to the flowing place of the fluid. COPYRIGHT: (C)2004,JPO

16. 发明专利

JPH0798083A PLUG FOR QUICKLY CONNECTING COUPLER 失效
公开(公告)号：JPH0798083A
公开(公告)日：1995-04-11
申请号：JP24759993
申请日：1993-09-07
申请人： OSAKA GAS CO LTD
发明人： NAKANISHI TAKAYUKI , TANAKA NOBUO
IPC分类号： F16L17/00 , F16L37/22 , F16L37/28
摘要： PURPOSE:To provide a plug for quickly connecting a coupler so as to cope with various different kinds of hose ends. CONSTITUTION:A value body 5 operated by the operating rod 4 of a quick coupler 3 and an operating annulus 7 slid while being brought in pressure contact with the tip of a hose end 2 are fit and inserted in the main body 1 of a cylindrical plug whose front end is formed as a quick coupler connecting part A and rear end is formed as a hose end inserting part B, a compression spring 8 serving both as the return spring of the valve body 5 and the return spring of the operating annulus 7 is interposed between the valve body 5 and the operating annulus 7, and a packing 10 which is tightly stuck on the outer circumferential surface of the hose end 2 is mounted on the inner circumference of an annular screw 9 which is screwed to the rear end part of the main body 1. The front surface of the annular screw 9 is formed as a stopper 9a for receiving the rear end of the operating annulus 7, and an annular coil spring 11 is fit on the outer circumference of the rear end part of the operating annulus 7, and when the operating annulus 7 is push-pressed by the hose end 2 and moved forward, the coil spring 11 is engaged with a step part formed on the inner circumferential surface of the main body 1, so that it is fallen down from the operating annulus 7, and fit to the recessed part of the outer circumference of the hose end 2.

17. 发明专利

JPH06109190A LIVE PIPE CUTTING AND CHOKING METHOD 失效
公开(公告)号：JPH06109190A
公开(公告)日：1994-04-19
申请号：JP28101492
申请日：1992-09-26
申请人： OSAKA GAS CO LTD
发明人： NISHIIKE AKIZOU , NAKANISHI TAKAYUKI , SAKAMOTO TOSHIAKI , KOMURA ATSUNORI
IPC分类号： F16L41/06
摘要： PURPOSE:To make the cutting of a gas pipe possible without stopping the supply of gas by injecting sealing material after a cutting blade in a live pipe branching joint is driven through a piston to drill the gas pipe, and connecting the gas pipe under a condition where a gas flow is cut off through the sealing material. CONSTITUTION:In the case where a gas pipe in the earth is shortened to shift the position of an outdoor gas meter, a live pipe branching joint A is first fastenedly fixed on the upstream side of the cut spot of the gas pipe 1. Next, a bushing 25 having a gun fittedly inserting hole 24 provided in its central part is fittedly attached to a branched pipe connecting port 15, and a sealing material injecting gun 16 is insertedly attached to the bushing 25. After a piston 13 is then actuated by a bush pin to open a through hole in the gas pipe 2 by cutting blade 14, the gun 16 is instantly shot to lead sealing material B into the gas pipe 2 through the joint A for choking the gas pipe 2. After the upstream and downstream sides of the joint A are cut in this state, and choked by a pipe end plug 27, the joint A is disused, and another joint A' is attached on the upstream side of the joint A, and piping for a new meter is connected to the joint A'.

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