JPH08113963A

JPH08113963A - Fixture for corporation cock

Info

Publication number: JPH08113963A
Application number: JP25202494A
Authority: JP
Inventors: Norio Douman; 則雄道満
Original assignee: Kurimoto Ltd
Current assignee: Kurimoto Ltd
Priority date: 1994-10-18
Filing date: 1994-10-18
Publication date: 1996-05-07

Abstract

PURPOSE: To prevent the reduction of a flowing-water sectional area even in the case of the small bore of a fluid pipe, and to stabilize the state of mounting by equalizing and shortening a distance between the lower-end diameter expanding surface of a corporation cock after diameter expansion and the inner circumferential surface of the fluid pipe. CONSTITUTION: A rotating screw member 97 is moved vertically by operating a torque wrench 112 connected to a handle 103, and the lower end face of cylindrical fittings is struck by a molding surface by the vertical motion of a hook member, and a diameter is expanded. The diameter is expanded, the torque wrench 112 is lifted and an adjusting nut is screwed, the hook member is stored in a main shaft 60 and fixed, and a diameter expander 90 is elevated and removed from a cylinder section. A ball valve is opened and a cut-off jig is inserted, the nut is screwed and a diameter expanding shaft is pulled up, and the diameter of a rubber cylinder is expanded by a head and the rubber cylinder is press-contacted with the internal surface of a diameter expanding section. The diameter expanding surface of the cylindrical fittings is placed in the state, in which the diameter expanding surface is covered with a cock for cut-off, and the fittings are removed from the nut and the corporation cock is fitted to the nut. The cut-off jig is pulled up to a section upper than the intermediate section of the corporation cock after mounting, and the corporation cock is closed and the cut-off jig is extracted.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】この発明は、水道管など大径の流
体管に穿孔された分岐口に取付けられる耐震性に優れた
分水栓の取付装置、特に拡径後の分水栓の下端拡径面と
流体管の内周面との間の面間差が全周にわたって均一
で、かつ小さいものにすることができる装置に関するも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attachment device for a water faucet which is attached to a branch port formed in a large-diameter fluid pipe such as a water pipe and is excellent in earthquake resistance, and more particularly, the lower end of the water faucet after the diameter expansion. The present invention relates to a device in which a surface difference between an enlarged diameter surface and an inner peripheral surface of a fluid pipe can be made uniform and small over the entire circumference.

【０００２】[0002]

【従来の技術】従来、この種の分水栓の取付装置とし
て、この出願人が提案した特願平５−４７６３５号があ
る。この取付装置は発明の詳細な説明の段落番号００１
８に記載のように「ハンドル88を操作して駆動軸80を回
転すると、取付板82にあるローラ83又は84がレバー75を
押圧して軸77を中心に図10で時計方向に回転させ、これ
により上動するローラ78で昇降部材67の頂板70の下部両
側に設けた突部67ａを押し上げ、昇降部材67をスプリン
グ72に抗して上昇させ、昇降部材67とねじ嵌合された主
軸25を上昇させることが可能となっている。また、前記
ハンドル63を操作して主軸25を回転すると、主軸25はね
じ嵌合された昇降部材67に対して回転しながら昇降す
る。」の構成を有し、かつ段落番号００２５に記載のよ
うに「ハンドル88を操作して駆動軸80を回転する。すな
わち駆動軸80を回転すると、取付板82にあるローラ83が
レバー75を押圧して軸77を中心に時計方向に回転し、こ
れにより上動するローラ78が昇降部材67をスプリング72
に抗して上昇し、昇降部材67とねじ嵌合された主軸25を
上昇し、これにより筒状金具２の下端面はフック部材29
の成形面28からプレスされる。さらに、駆動軸80を回転
中、取付板82が水平の位置になると、レバー75が自由状
態になり、昇降部材67はスプリング72により押し下げら
れる。このように駆動軸80の回転はフック部材29の小刻
みな上下運動の繰り返しに変換され、フック部材29の成
形面28によるプレスとプレス解除を行なう。また、ハン
ドル63の操作による主軸25の１回転で小ピッチの上動も
併せて行なう。これにより筒状金具２の下端面は徐々に
拡径され、ラッパ状の拡径部３になる。」の作用をもっ
ている。2. Description of the Related Art Conventionally, there is Japanese Patent Application No. 5-47635 proposed by the applicant of the present invention as a device for mounting a water faucet of this type. This mounting device is disclosed in paragraph 001 of the detailed description of the invention.
As described in item 8, "When the handle 88 is operated to rotate the drive shaft 80, the roller 83 or 84 on the mounting plate 82 presses the lever 75 to rotate the shaft 77 clockwise around the shaft 77 in FIG. As a result, the roller 78 moving upward pushes up the protrusions 67a provided on both lower sides of the top plate 70 of the elevating member 67 to raise the elevating member 67 against the spring 72, and the main shaft 25 screwed with the elevating member 67. When the handle 63 is operated to rotate the main shaft 25, the main shaft 25 moves up and down while rotating with respect to the elevating member 67 screw-fitted. " As described in Paragraph No. 0025, "the handle 88 is operated to rotate the drive shaft 80. That is, when the drive shaft 80 is rotated, the roller 83 on the mounting plate 82 presses the lever 75 to rotate the shaft 77. The roller 78, which rotates clockwise around the Spring 72
And the main shaft 25 screw-fitted with the lifting member 67 is lifted, so that the lower end surface of the tubular fitting 2 is hooked by the hook member 29.
Is pressed from the molding surface 28. Further, while the drive shaft 80 is rotating, when the mounting plate 82 is in the horizontal position, the lever 75 is in a free state and the elevating member 67 is pushed down by the spring 72. In this way, the rotation of the drive shaft 80 is converted into a repetition of the up-and-down movement of the hook member 29, and the pressing and release of the pressing by the forming surface 28 of the hook member 29 are performed. In addition, one rotation of the main shaft 25 by operating the handle 63 also moves up the small pitch. As a result, the diameter of the lower end surface of the cylindrical metal fitting 2 is gradually increased to form a trumpet-shaped enlarged diameter portion 3. "Has the effect of.

【０００３】[0003]

【発明が解決しようとする課題】ところで、この従来の
取付装置は、前記のように駆動軸80の回転によって押圧
されるレバー75の回転による昇降部材67及び主軸25の上
昇ストロークが常に一定であるため、フック部材29の小
刻みな上下運動のピッチも一定となり、流体管６の内面
の曲面に合わせて筒状金具２の下端面を拡径することが
不可能である。すなわち、拡径された後の分水栓１を図
16に示すように筒状金具２の下端面における流体管６の
径方向側縁部に近い部分は流体管６の内面近くまで拡径
されるが、その他の部分は流体管６の内面近くまでは拡
径されず、流体管６の内周面との間の面間差Ｈが大きく
なり、流体管６の口径が小さい場合は分水栓１の下端拡
径面の流体管６内に突出する量が大きくなって流体管６
の流水断面積が小さくなるという問題点があった。ま
た、面間差Ｈが全周にわたって均一でなく、下端拡径面
が流体管６の内周面に均一に接しないので、拡径部３が
全周にわたり離脱阻止力として働かないという問題点も
あった。尚、図16において４はゴム輪、７は分岐口、10
はゴム輪４の上端部外周面に形成のフランジ部、11はゴ
ム輪４の下端部内周面に形成の環状突部、12は分岐流体
管６の上端部外周面に形成のフランジ部である。By the way, in this conventional mounting device, the lifting stroke of the elevating member 67 and the main shaft 25 by the rotation of the lever 75 pressed by the rotation of the drive shaft 80 as described above is always constant. Therefore, the pitch of the vertical movement of the hook member 29 in small increments is also constant, and it is impossible to expand the diameter of the lower end surface of the tubular metal fitting 2 in accordance with the curved surface of the inner surface of the fluid pipe 6. That is, the diversion valve 1 after being expanded
As shown in 16, the portion of the lower end surface of the tubular fitting 2 near the radial side edge of the fluid pipe 6 is expanded to near the inner surface of the fluid pipe 6, while the other portions are extended to near the inner surface of the fluid pipe 6. Is not expanded, the surface difference H with the inner peripheral surface of the fluid pipe 6 becomes large, and when the bore of the fluid pipe 6 is small, it projects into the fluid pipe 6 on the expanded bottom surface of the water dip 1 Fluid pipe 6
There was a problem that the cross-sectional area of flowing water became small. In addition, since the surface difference H is not uniform over the entire circumference and the lower-diameter expanded surface does not contact the inner peripheral surface of the fluid pipe 6 uniformly, the expanded-diameter portion 3 does not work as a separation preventing force over the entire circumference. There was also. In FIG. 16, 4 is a rubber ring, 7 is a branch port, and 10
Is a flange portion formed on the outer peripheral surface of the upper end portion of the rubber ring 4, 11 is an annular protrusion formed on the inner peripheral surface of the lower end portion of the rubber ring 4, and 12 is a flange portion formed on the outer peripheral surface of the upper end portion of the branch fluid pipe 6. .

【０００４】そこでこの発明は、前記のような従来の問
題点を解決し、拡径後の分水栓の下端拡径面と流体管の
内周面との間の面間差を全周にわたって均一で、かつ小
さくすることにより、流体管の口径が小さい場合でも従
来のような流水断面積が小さくなるようなことがなく、
しかも拡径部が全周にわたり離脱阻止力として働くこと
が可能な分水栓の取付装置を提供することを目的とす
る。In view of the above, the present invention solves the above-mentioned problems of the prior art, and the surface difference between the lower end expanded surface of the water dip plug and the inner peripheral surface of the fluid pipe is expanded over the entire circumference. By making it uniform and small, even if the diameter of the fluid pipe is small, the flowing water cross-sectional area as in the past does not become small,
Moreover, it is an object of the present invention to provide a water faucet mounting device in which the expanded diameter portion can act as a separation preventing force over the entire circumference.

【０００５】[0005]

【課題を解決するための手段】前記目的を達成するた
め、請求項１の発明の取付装置は、流体管に穿設される
分岐口より大きい径の中空筒部を有し、該筒部が分岐口
の回りに上向きとなるように流体管の外周に着脱可能に
設置された鞍と、この鞍の筒部内に上下動可能に収納さ
れ、中心部に上下端開口の軸孔を有する筒状金具装着用
取付部材と、上端が開口し、かつ底部が下向き傾斜のテ
ーパ面に形成された軸孔を有し、該軸孔のテーパ面と対
向する周壁にフック部材突出用窓が切欠き形成されてい
るとともに、上端部外周面におねじが形成された主軸
と、この主軸の軸孔に上下動可能に嵌合された可動軸
と、この可動軸の下端にピンで軸線に対し所定角度傾動
可能に枢支され、可動軸の下動により主軸のテーパ面を
摺動して傾動し成形面を前記窓から外方に突出するフッ
ク部材とからなり、主軸が取付部材の軸孔に嵌挿して保
持された拡径治具と、この拡径治具を軸孔で保持した前
記取付部材をその下端部が流体管の分岐口に嵌入可能に
上下動させる第１の操作部材と、鞍の筒部の上端部に着
脱可能に設置されるケース本体を有し、該ケース本体内
に前記拡径治具の主軸のおねじと螺合するめねじが中心
部の軸孔に形成された回転ねじ部材が主軸と係合部材に
よって係脱可能に嵌挿され、この回転ねじ部材を主軸と
係合した状態で拡径可能な所定の上下ストロークの範囲
で任意のストローク上下動させ、かつこの１回の上下動
ストロークにつき所定ピッチずつ回転させる第２の操作
部材がケース本体に設けられ、また回転ねじ部材と主軸
が係合しない状態で回転ねじ部材に対して主軸を上下動
させる第３の操作部材が設けられた拡径装置とを具えて
いる。In order to achieve the above object, an attachment device according to the invention of claim 1 has a hollow cylindrical portion having a diameter larger than a branch port formed in a fluid pipe, and the cylindrical portion is A saddle that is removably installed on the outer circumference of the fluid pipe so as to face upward around the branch port, and is vertically movably housed in the cylindrical part of this saddle and has a shaft hole with upper and lower end openings in the center part. A fitting member for mounting a metal fitting and a shaft hole having an upper end opened and a bottom portion formed in a tapered surface with a downward slope, and a hook member projecting window is formed in a notch in a peripheral wall facing the tapered surface of the shaft hole. In addition, a main shaft with a screw formed on the outer peripheral surface of the upper end, a movable shaft fitted in the shaft hole of the main shaft so as to be vertically movable, and a pin at the lower end of the movable shaft at a predetermined angle with respect to the axis. It is tiltably supported and slides on the taper surface of the main shaft due to the downward movement of the movable shaft to tilt and move the forming surface. A diametrical expansion jig consisting of a hook member projecting outward from the writing window, the main shaft being fitted and held in the shaft hole of the mounting member, and the mounting member holding the diametrical expansion jig in the shaft hole. A lower end has a first operating member that moves up and down so that it can be fitted into a branch opening of the fluid pipe, and a case body that is detachably installed at the upper end of the tubular portion of the saddle, and the diameter expansion is performed in the case body. A rotary screw member in which a female screw to be screwed with the male screw of the main shaft of the jig is formed in the shaft hole at the center is detachably fitted by the main shaft and the engaging member, and this rotary screw member is engaged with the main shaft. The second main body is provided in the case main body, and is provided with a second operation member for vertically moving an arbitrary stroke in a range of a predetermined vertical stroke in which the diameter can be expanded, and rotating by a predetermined pitch for each single vertical movement stroke. With the main shaft not engaged with the rotary screw member Third operating member vertically moving is comprises a diameter device provided a shaft.

【０００６】請求項２の発明の取付装置は、請求項１に
おいて、係合部材が回転ねじ部材と主軸の相対向する面
に形成のキー溝間に着脱可能に装着されるキーである。
請求項３の発明の取付装置は、請求項１又は２におい
て、鞍の筒部が下方筒部と該筒部に着脱可能に取付けら
れた上方筒部からなり、かつ下方筒部に止水用バルブ及
び水抜きバルブが取付けられている。請求項４の発明の
取付装置は、請求項１〜３のいずれかにおいて、取付部
材に軸孔を開閉可能なバルブが設けられ、このバルブが
鞍の外側から開閉操作可能となっている。請求項５の発
明の取付装置は、請求項１〜４のいずれかにおいて、回
転ねじ部材が主軸に嵌挿された下方の非ねじ部分と、主
軸のおねじに螺合するめねじを有する上方のねじ部分と
からなり、ねじ部分の外周面には軸線と平行な下方ギヤ
部と軸線に対して所定角度で傾いた上方ギヤ部とからな
るギヤが複数個、円周方向に所定の間隔をおいて設けら
れている。According to a second aspect of the present invention, in the mounting device according to the first aspect, the engaging member is detachably mounted between the key grooves formed on the surfaces of the rotary screw member and the main shaft which face each other.
A mounting device according to a third aspect of the present invention is the mounting device according to the first or second aspect, in which the tubular portion of the saddle comprises a lower tubular portion and an upper tubular portion detachably attached to the tubular portion, and the lower tubular portion is for water blocking. The valve and drain valve are installed. A mounting device according to a fourth aspect of the present invention is the mounting device according to any one of the first to third aspects, wherein the mounting member is provided with a valve capable of opening and closing the shaft hole, and the valve can be opened and closed from the outside of the saddle. A mounting device according to a fifth aspect of the present invention is the mounting device according to any one of the first to fourth aspects, wherein the rotating screw member has a lower non-threaded portion fitted into the main shaft and an upper screw having a female screw threaded to the male screw of the main shaft. The outer peripheral surface of the threaded portion is provided with a plurality of gears, each of which has a lower gear portion parallel to the axis and an upper gear portion inclined at a predetermined angle with respect to the axis, at predetermined intervals in the circumferential direction. It is provided.

【０００７】[0007]

【作用】前記のように拡径装置の第２の操作部材によっ
て上下動される回転ねじ部材が主軸と係合した状態で拡
径可能な所定の上下ストロークの範囲で任意のストロー
ク上下動可能となっているので、拡径治具のフック部材
の上下運動のピッチは任意であり、したがって、拡径部
を流体管の内面に対して面間差の小さいものに形成する
ことが可能である。As described above, it is possible to vertically move an arbitrary stroke within a predetermined vertical stroke range in which the rotary screw member that is vertically moved by the second operating member of the diameter expanding device is in a state of being engaged with the main shaft and can be expanded in diameter. Therefore, the pitch of the vertical movement of the hook member of the diametrical expansion jig is arbitrary, and therefore the diametrical expansion part can be formed with a small surface difference with respect to the inner surface of the fluid pipe.

【０００８】[0008]

【実施例】図１はこの発明の一実施例を示す分水栓の取
付装置の縦断正面図、図２は同側面図である。１は分水
栓取付用の流体管で、その上壁には分岐口２が穿設され
ている。３は流体管１の外周に取付具４で着脱可能に固
定された鞍であり、分岐口２より大きい径の中空筒部５
を有している。筒部５は下方筒部５ａと上方筒部５ｂか
らなり、両筒部は下方筒部５ａの上端面に上方筒部５ｂ
の下端フランジ部６が載置され、該フランジ部６を覆う
ように螺合される袋ナット７を介して着脱可能に取付け
られている。８はパッキンである。下方筒部５ａ内には
止水用バルブ10が回転可能に配設されている。バルブ10
は横向きに回転可能なバルブ本体11を有し、その外周壁
に形成されるバルブ面12は一端側から他端側に向けて徐
々に小径に傾斜したテーパ面となっている。13はバルブ
面12と摺接するシール材、14はバルブ蓋で、下方筒部５
ａの側壁に設けたバルブ装着用開口部15にねじ嵌合によ
り取付けられている。16はバルブ回転用の軸で、バルブ
蓋14から突出している。17は下方筒部５ａ内と連通可能
に連結された水抜きバルブである。FIG. 1 is a vertical sectional front view of a water faucet mounting device showing an embodiment of the present invention, and FIG. 2 is a side view thereof. Reference numeral 1 is a fluid pipe for attaching the water faucet, and a branch port 2 is formed in the upper wall thereof. Reference numeral 3 denotes a saddle that is detachably fixed to the outer circumference of the fluid pipe 1 with a fixture 4, and has a hollow cylindrical portion 5 having a diameter larger than that of the branch port 2.
have. The tubular portion 5 is composed of a lower tubular portion 5a and an upper tubular portion 5b, and both tubular portions are attached to the upper end surface of the lower tubular portion 5a by the upper tubular portion 5b.
The lower end flange portion 6 is placed, and is detachably attached via a cap nut 7 screwed to cover the flange portion 6. 8 is a packing. A water shutoff valve 10 is rotatably disposed in the lower tubular portion 5a. Valve 10
Has a valve body 11 that can rotate sideways, and a valve surface 12 formed on the outer peripheral wall of the valve body 11 is a tapered surface that gradually inclines to a small diameter from one end side to the other end side. 13 is a sealing material that is in sliding contact with the valve surface 12, 14 is a valve lid, and the lower tubular portion 5
It is attached by screw fitting to the valve mounting opening 15 provided on the side wall of a. Reference numeral 16 denotes a shaft for rotating the valve, which projects from the valve lid 14. Reference numeral 17 denotes a water drain valve which is connected so as to be able to communicate with the inside of the lower tubular portion 5a.

【０００９】上方筒部５ｂは分割された２つの略半円筒
状部片20，21からなり、その下端部には前記のように環
状のフランジ部６が設けられ、上端部にはリング22が内
嵌合され、これら両部材６，22で部片20，21の両端間に
隙間23，24を有する円筒形態に保持されている。The upper tubular portion 5b is composed of two divided semi-cylindrical portions 20 and 21, the lower end portion of which is provided with the annular flange portion 6 as described above, and the upper end portion thereof is provided with the ring 22. It is fitted inside and is held by these two members 6 and 22 in a cylindrical shape having gaps 23 and 24 between both ends of the pieces 20 and 21.

【００１０】鞍３の筒部５内には中心部に上下端開口の
軸孔25を有する筒状金具装着用取付金具26、中心部にバ
ルブ孔27を有し、取付金具26の上端面に形成の凹所28に
回転可能に装着されたボールバルブ30、及び中心部に上
下端開口の軸孔31を有し、取付部材26の上端と凹凸嵌合
してボールバルブ30を上から押える押え部材32が、一体
に上下動が可能なように収納されている。これら各部材
26，30，32で筒状金具装着用取付部材を構成する。35，
36，37，38はパッキン、39はＯリング、40は抜け止め突
部、41はボールバルブ回転用の軸で、取付金具26に設け
た孔42から突出し、上方筒部５ｂの隙間23を臨むように
位置している。上方筒部５ｂの外周面にはおねじ43が形
成され、このおねじには操作ハンドル44の内周側突隆部
45に形成のめねじ46が螺合されている。突隆部45は押え
部材32の上部に配置の加圧部材47の下端外周面に取付け
られた回転ローラ48に載置して係合され、ハンドル44の
回転による上下動を係合する突隆部45と回転ローラ48に
より加圧部材47に伝えられるようになっており、これに
より取付金具26等は上下動させられる。加圧部材47は中
心部に上下端開口の軸孔49を有し、かつ下端面に形成の
凹部50が押え部材32の上端面に形成の凸部51に嵌合され
ている。In the tubular portion 5 of the saddle 3, a tubular metal fitting mounting fixture 26 having an axial upper and lower end opening 25 in the center, and a valve hole 27 in the central portion are provided on the upper end surface of the mounting fixture 26. A ball valve 30 rotatably mounted in the formed recess 28, and a shaft hole 31 having upper and lower end openings in the center, and a presser foot that presses the ball valve 30 from above by engaging with the upper end of the mounting member 26 in a concavo-convex manner. The member 32 is housed so as to be integrally movable up and down. Each of these components
26, 30, 32 constitute a mounting member for mounting a tubular metal fitting. 35,
36, 37, 38 are packings, 39 is an O-ring, 40 is a retaining projection, 41 is a ball valve rotating shaft, which projects from a hole 42 provided in the mounting bracket 26 and faces the gap 23 of the upper tubular portion 5b. Is located. A male thread 43 is formed on the outer peripheral surface of the upper tubular portion 5b, and the male thread 43 is formed on the male thread of the operating handle 44.
An internal thread 46 formed on 45 is screwed. The protruding portion 45 is placed on and engaged with a rotating roller 48 attached to the lower end outer peripheral surface of the pressing member 47 arranged on the upper part of the pressing member 32, and engages the vertical movement due to the rotation of the handle 44. It is adapted to be transmitted to the pressing member 47 by the portion 45 and the rotating roller 48, whereby the mounting member 26 and the like can be moved up and down. The pressurizing member 47 has a shaft hole 49 having upper and lower end openings at the center, and a recess 50 formed on the lower end surface is fitted to a protrusion 51 formed on the upper end surface of the pressing member 32.

【００１１】55は取付部材の軸孔、すなわち取付金具26
の軸孔25、ボールバルブ30のバルブ孔27、押え部材32の
軸孔31、加圧部材47の軸孔49にそれぞれ嵌挿して保持さ
れた拡径治具である。この拡径治具55は前記した先願と
ほぼ同様な構成になっている。すなわち、図３に示すよ
うに上端が開口し、かつ底部が下向き傾斜のテーパ面56
に形成された軸孔57を有し、該軸孔のテーパ面56と対向
する前周壁にフック部材突出用窓58が切欠き形成された
主軸60と、この主軸60の軸孔57に上下動可能に嵌合され
た可動軸62と、この可動軸62の下端二又部にピン63で軸
線に対し所定角度傾動可能に枢支され、可動軸62の下動
により主軸60のテーパ面56を摺動して傾動し成形面64を
窓58から外方に突出するフック部材65とからなってい
る。窓58と反対側の主軸60の後周壁には別の窓66が切欠
き形成されている。Reference numeral 55 designates a shaft hole of the mounting member, that is, the mounting bracket 26.
The diameter expansion jig is fitted and held in the shaft hole 25, the valve hole 27 of the ball valve 30, the shaft hole 31 of the pressing member 32, and the shaft hole 49 of the pressing member 47, respectively. The diameter expanding jig 55 has substantially the same structure as that of the above-mentioned prior application. That is, as shown in FIG. 3, a tapered surface 56 having an opening at the upper end and a downward inclination at the bottom.
A main shaft 60 having a shaft hole 57 formed in the shaft hole, and a hook member protruding window 58 cut out in the front peripheral wall facing the tapered surface 56 of the shaft hole, and a vertical movement in the shaft hole 57 of the main shaft 60. A movable shaft 62 fitted so that it can be fitted and a lower end bifurcated portion of the movable shaft 62 are pivotally supported by a pin 63 so that the movable shaft 62 can be tilted at a predetermined angle with respect to the axis. It comprises a hook member 65 that slides and tilts to project the molding surface 64 outward from the window 58. Another window 66 is cut out in the rear peripheral wall of the main shaft 60 on the side opposite to the window 58.

【００１２】テーパ面56はこの例では主軸60の軸孔57下
部内に固定されたテーパ台68に形成され、テーパ台68は
固定ピン69により取付けられている。テーパ面56にはフ
ック部材65の成形面64が窓58から突出したときにフック
部材65の後面に形成した係止凹所70と係止する係止突部
71が設けられている。成形面64は前記係止によりフック
部材65が位置決められた傾動状態で、主軸60の外周面か
ら下向き傾斜に突出し、後記のように分水栓の筒状金具
の下端部を打撃しながら拡げるとき拡径部の上部が座屈
するのを防ぐようになっている。In this example, the taper surface 56 is formed on a taper base 68 fixed in the lower portion of the shaft hole 57 of the main shaft 60, and the taper base 68 is attached by a fixing pin 69. The tapered surface 56 has a locking projection that locks with the locking recess 70 formed on the rear surface of the hook member 65 when the molding surface 64 of the hook member 65 projects from the window 58.
71 are provided. When the molding surface 64 is in a tilted state in which the hook member 65 is positioned by the locking, it projects downward from the outer peripheral surface of the main shaft 60 and expands while striking the lower end of the tubular metal fitting of the water faucet as described later. It is designed to prevent the upper part of the expanded portion from buckling.

【００１３】主軸60の上端小径部の外周面には可動軸62
の中心を軸心とした袋ナット77用のおねじ75が設けてあ
り、小径部につづく大径部外周面には図４に示す操作ハ
ンドル76を取付ける主軸60の中心を軸心とし、一部が前
記小径部から繋がる縦方向のスプライン79が形成されて
いる。82は主軸60に嵌挿された可動軸62のおねじ78に螺
合した調整ナットであって、このナットの弛緩により可
動軸62の主軸60に対する上下動位置が調整可能である。
前記おねじ75に螺合した下向きで底部に可動軸62が嵌通
可能な孔を有した袋ナット77は大径部の端部との間に少
し隙間を開けて可動軸62に螺合した調整ナット82を押圧
するようになっていて、これにより可動軸62は押圧され
てフック部材65を固定するようになっている。80は主軸
60のおねじ75より下方の外周面に形成されたおねじ、81
はキー溝である。また、図１において、83は取付金具26
の下端小径部に形成のおねじ84に螺合して取付けられた
袋ナットであり、分水栓の筒状金具85をその上端フラン
ジ部86を覆って取付けている。87はパッキン、88は筒状
金具85の下端部に装着されたゴム輪である。このゴム輪
と筒状金具はこの例では図示のように下端面85ａ，88ａ
が流体管１の曲面に合わせて予め曲面に形成されてい
る。しかし、これは成形の容易性から曲面としたもので
あり、必ずしもこのようにする必要はない。89はパッキ
ンである。A movable shaft 62 is provided on the outer peripheral surface of the small-diameter upper end of the main shaft 60.
There is a male screw 75 for the cap nut 77 with the center of the shaft centered on the center of the main shaft 60 where the operation handle 76 shown in FIG. A vertical spline 79 is formed whose part is connected from the small diameter part. Reference numeral 82 denotes an adjusting nut screwed into a male screw 78 of the movable shaft 62 fitted in the main shaft 60, and the loosening of the nut allows the vertical movement position of the movable shaft 62 with respect to the main shaft 60 to be adjusted.
The cap nut 77 screwed to the male screw 75 and having a hole at the bottom through which the movable shaft 62 can be fitted is screwed to the movable shaft 62 with a slight gap between the cap nut 77 and the end of the large diameter portion. The adjusting nut 82 is pressed, whereby the movable shaft 62 is pressed and the hook member 65 is fixed. 80 is the spindle
60 Male thread formed on the outer peripheral surface below the male thread 75, 81
Is a keyway. Further, in FIG. 1, 83 is a mounting bracket 26.
Is a cap nut screwed and attached to the male screw 84 formed at the lower end small diameter portion, and the tubular metal fitting 85 of the water faucet is attached to cover the upper end flange portion 86 thereof. 87 is a packing, and 88 is a rubber ring attached to the lower end of the tubular fitting 85. In this example, the rubber ring and the tubular metal member have lower end surfaces 85a, 88a as shown in the drawing.
Are formed in advance in a curved surface in accordance with the curved surface of the fluid pipe 1. However, this is a curved surface for ease of molding, and it is not always necessary to do so. 89 is a packing.

【００１４】図４において、90は鞍３の上端部に着脱可
能に取付けられた拡径装置で、中空筒状のケース本体91
を有している。ケース本体91は下端フランジ部92が袋ナ
ット93に螺合して取付けられて、袋ナット93が鞍３の筒
部５の上端おねじ94に螺合されることにより着脱可能に
設置される。ケース本体91内には中心部に軸孔96を有す
る回転ねじ部材97がスラストベアリング98を介して上下
動、かつ回転可能に嵌挿されている。回転ねじ部材97は
主軸60に嵌挿された下方の非ねじ部分97ａと、主軸60の
おねじ80に螺合するめねじ101を有する上方のねじ部分9
7ｂとからなり、ねじ部分97ｂの内腔に非ねじ部分97ａ
の上部突部99がスラストリング100を介して嵌合されて
いる。図５〜７にも示すようにねじ部分97ｂの外周面に
は軸線と平行な下方ギヤ部102ａと軸線に対して所定角
度で傾いた上方ギヤ部102ｂとからなるギヤ102が複数
個、円周方向に所定の間隔をおいて設けられている。ギ
ヤ102は筒状金具85の下端部を打撃して分水栓の拡径部
を形成するのに十分な昇降ストロークを主軸60がとれる
ような長さ（高さ）となっている。In FIG. 4, reference numeral 90 denotes a diameter expanding device detachably attached to the upper end of the saddle 3, and a hollow cylindrical case body 91.
have. The case body 91 is detachably installed by attaching the lower end flange portion 92 to the cap nut 93 by screwing the cap nut 93 into the upper male screw 94 of the tubular portion 5 of the saddle 3. A rotary screw member 97 having a shaft hole 96 at the center is fitted in the case body 91 via a thrust bearing 98 so as to be vertically movable and rotatable. The rotary screw member 97 has a lower non-screw portion 97a fitted into the main shaft 60 and an upper screw portion 9 having a female screw 101 to be screwed into the male screw 80 of the main shaft 60.
7b, and the non-threaded portion 97a in the inner cavity of the threaded portion 97b.
The upper projection 99 of the above is fitted via the thrust ring 100. As shown in FIGS. 5 to 7, the outer peripheral surface of the threaded portion 97b is provided with a plurality of gears 102 each including a lower gear portion 102a parallel to the axis and an upper gear portion 102b inclined at a predetermined angle with respect to the axis. It is provided at a predetermined interval in the direction. The gear 102 has such a length (height) that the main shaft 60 can take an ascending / descending stroke sufficient to strike the lower end of the tubular fitting 85 to form the enlarged diameter portion of the water dip plug.

【００１５】103はケース本体91の上端フランジ部104に
ボルトナット105で取付けた支持部材106に中間部が軸10
7で枢支された二又状の成形ハンドルであり、該ハンド
ルの一端部は回転ねじ部材97の両側部に配置された連結
杆108の一端部に軸109で枢支されている。両連結杆108
の他端部はスラストリング100に軸110で枢支されてい
る。112はハンドル103の他端部に連結されたトルクレン
チである。113は支持部材106と反対側のケース本体91の
上端フランジ部104にボルトナット114で取付けられた別
の支持部材であり、支持部材113の上端部には送り回転
爪115が常時板ばね116により水平向きとなるように上方
付勢されてピン117で枢支されている。ばね116は基端部
がボルト118で固定されており、自由端部が送り回転爪1
15を支持部材113のストッパ119に当接するように付勢す
る。この送り回転爪115は回転ねじ部材97の上下動によ
りギヤ102間にその上方ギヤ部102ｂ間から下方ギヤ部10
2ａ間に入り込んだり、抜け出たりして、回転ねじ部材9
7の上下動の間に回転ねじ部材97を所定ピッチ回転させ
るようになっている。Reference numeral 103 denotes a support member 106 attached to a top flange portion 104 of a case body 91 with a bolt nut 105, and an intermediate portion of the support member 106.
It is a bifurcated molded handle pivotally supported by 7, and one end of the handle is pivotally supported by a shaft 109 on one end of a connecting rod 108 arranged on both sides of the rotary screw member 97. Double connecting rod 108
The other end of the shaft is pivotally supported on the thrust ring 100 by a shaft 110. 112 is a torque wrench connected to the other end of the handle 103. Reference numeral 113 denotes another support member attached to the upper end flange portion 104 of the case body 91 on the opposite side of the support member 106 with a bolt nut 114, and the feed rotary claw 115 is always provided on the upper end portion of the support member 113 by a leaf spring 116. It is biased upward so as to be horizontally oriented and is pivotally supported by a pin 117. The spring 116 has its base end fixed by a bolt 118, and its free end has a feed rotary pawl 1
The member 15 is urged to come into contact with the stopper 119 of the support member 113. The feed rotary claw 115 moves between the upper gear portion 102b and the lower gear portion 10 between the gears 102 by the vertical movement of the rotary screw member 97.
Rotating screw member 9 comes in and goes out between 2a
The rotating screw member 97 is rotated by a predetermined pitch during the vertical movement of 7.

【００１６】すなわち、図８に示すように回転ねじ部材
97が上動すると、送り回転爪115は回転ねじ部材97のギ
ヤ102の上方ギヤ部102ｂに入り(Ａ)、さらに下方ギヤ部
102ａに入る(Ｂ)。そして回転ねじ部材97が上動する
と、下方ギヤ部102ａ間から上方ギヤ部102ｂ間に入ると
きにその接続角部でばね116に抗して浮き上がって係合
が外れ、上方ギヤ部102ｂの外面を乗り越えてその上方
にもたらされ、回転方向次位のギヤ102の上方ギヤ部102
ｂ間に位置するとばね116により該間に入り込み、スト
ッパ119に当接し、これにより回転ねじ部材97が１ピッ
チぶん送られて回転される。That is, as shown in FIG. 8, a rotary screw member
When 97 moves upward, the feed rotary claw 115 enters the upper gear portion 102b of the gear 102 of the rotary screw member 97 (A), and further lower gear portion.
Enter 102a (B). Then, when the rotary screw member 97 moves upward, when it enters between the lower gear parts 102a and between the upper gear parts 102b, it floats up against the spring 116 at the connection corners thereof and disengages, so that the outer surface of the upper gear part 102b is removed. The upper gear portion 102 of the gear 102 next to the rotation direction, which is passed over and brought above
When it is located between b, it is inserted by the spring 116 and abuts on the stopper 119, whereby the rotary screw member 97 is fed by one pitch and rotated.

【００１７】この回転送り作用を図９によりさらに詳し
く説明すると、同図において(イ)から(ニ)までの回転ね
じ部材97の上動運動において、送り回転爪115はギヤ102
Ａとギヤ102Ｂの下方ギヤ部102ａ間から上方ギヤ部102
ｂ間に入り、この間に回転ねじ部材97は１ピッチＰぶん
右側に送られる。次に(ホ)から(チ)までの回転ねじ部材
97の下動運動において、送り回転爪115はギヤ102Ａとギ
ヤ102Ｂの下方ギヤ部102ａ間から上方ギヤ部102ｂに接
するようになるが、このとき前記の図８(Ｃ)のように送
り回転爪115は回転ねじ部材97との係合が外れている。
そのため、さらに回転ねじ部材97が下動すると、係合が
外れた送り回転爪115は(ホ)に対して次のピッチ内、す
なわちギヤ102Ｂとギヤ102Ｃの上方ギヤ部102ｂ間に入
り込み係合する。そして送り回転爪115は(チ)に示す位
置となり、(イ)〜(ニ)のように回転ねじ部材97が上動す
ると、さらに１ピッチぶん回転ねじ部材97は右側に送ら
れることとなる。このようにして回転ねじ部材97の上下
動の間に回転ねじ部材97は所定ピッチずつ送られて回転
させられる。図７で120は逆転止め具である。また図10
で121はキー（係合部材）であり、図６に示すように主
軸60に形成したキー溝81と回転ねじ部材97のねじ部分97
ｂに形成したキー溝122間に着脱可能に装着されるよう
になっており、該装着により両者が結合し、抜き出しに
より結合が解かれる。This rotary feed action will be described in more detail with reference to FIG. 9. In the upward movement of the rotary screw member 97 shown in FIGS.
A and the lower gear portion 102a of the gear 102B from the upper gear portion 102
Then, the rotary screw member 97 is fed to the right by one pitch P during this period. Next, the rotary screw member from (e) to (h)
In the downward movement of 97, the feed rotary pawl 115 comes into contact with the upper gear portion 102b from between the lower gear portions 102a of the gears 102A and 102B. At this time, as shown in FIG. 115 is disengaged from the rotary screw member 97.
Therefore, when the rotary screw member 97 further moves downward, the disengaged feed rotary pawl 115 enters into the following pitch with respect to (e), that is, between the upper gear portion 102b of the gear 102B and the gear 102C, and engages with it. . Then, the feed rotary claw 115 comes to the position shown in (H), and when the rotary screw member 97 moves upward as shown in (A) to (D), the rotary screw member 97 is further fed to the right by one pitch. In this way, the rotary screw member 97 is fed by a predetermined pitch and rotated during the vertical movement of the rotary screw member 97. In FIG. 7, 120 is a reverse rotation stopper. Fig. 10
121 is a key (engagement member), and as shown in FIG. 6, the key groove 81 formed in the main shaft 60 and the screw portion 97 of the rotary screw member 97.
It is designed to be detachably mounted between the key grooves 122 formed in b. By mounting, the both are coupled, and the coupling is released by pulling out.

【００１８】分水栓を流体管１の分岐口２に対し、取付
ける方法を以下に説明する。A method of attaching the water dip to the branch port 2 of the fluid pipe 1 will be described below.

【００１９】まず、流体管１の外周に鞍３の下方筒部５
ａを取付具４で取付けて固定した後、該筒部に図示しな
い穿孔機を取付けて流体管１の上壁を穿孔して分岐口２
を形成する。形成後、穿孔機の刃先をバルブ10の上方ま
で上げ、バルブ10を閉にして該穿孔機を取り外す。バル
ブ10を閉じる前に穿孔時に発生した切粉等をバルブ17を
開いて排出する。次に、拡径治具55を上方筒部５ｂ内の
取付金具26の軸孔25等に挿入し、取付金具26の下端部か
ら突出した拡径治具55の主軸60の下端部に筒状金具85を
嵌挿してその上端フランジ部86を取付金具26の下端面に
パッキン87を介在させて当接させるとともに、下方から
袋ナット83をおねじ84に螺合して該金具を保持する。そ
してこのように保持された筒状金具85の下端部にゴム輪
88を装着する。この装着に際しては、上方筒部５ｂが下
方筒部５ａに取付けられたときに筒状金具85の曲面とな
った下端面85ａとゴム輪88の曲面となった下端面88ａが
流体管１の曲面に合うようにする。しかる後、上方筒部
５ｂを下方筒部５ａに袋ナット７で隙間23，24が流体管
１の管軸と直交する向きとなるように取付ける。この状
態を示すのが図１である。First, the lower tubular portion 5 of the saddle 3 is attached to the outer circumference of the fluid pipe 1.
After attaching and fixing a by means of the fixture 4, a perforator (not shown) is attached to the tubular portion to perforate the upper wall of the fluid pipe 1 to form the branch port 2
To form. After forming, the cutting edge of the punch is raised above the valve 10, the valve 10 is closed, and the punch is removed. Before closing the valve 10, open the valve 17 to discharge chips and the like generated during perforation. Next, the diameter-expanding jig 55 is inserted into the shaft hole 25 or the like of the mounting member 26 in the upper tubular portion 5b, and the lower end portion of the main shaft 60 of the diameter-expanding jig 55 protruding from the lower end portion of the mounting member 26 is tubular. The metal fitting 85 is fitted and the upper end flange portion 86 is brought into contact with the lower end surface of the mounting metal fitting 26 with the packing 87 interposed therebetween, and the cap nut 83 is screwed onto the male screw 84 from below to hold the metal fitting. Then, a rubber ring is attached to the lower end of the tubular fitting 85 held in this way.
Put on 88. At the time of this mounting, when the upper tubular portion 5b is attached to the lower tubular portion 5a, the curved lower end surface 85a of the tubular fitting 85 and the curved lower end surface 88a of the rubber ring 88 are curved surfaces of the fluid pipe 1. To suit. Thereafter, the upper tubular portion 5b is attached to the lower tubular portion 5a with the cap nut 7 so that the gaps 23 and 24 are oriented orthogonal to the pipe axis of the fluid pipe 1. FIG. 1 shows this state.

【００２０】次に、バルブ10を開き（バルブ17は閉じて
おく）、ハンドル44を回して取付金具26等を降ろし、分
岐口２にゴム輪88と筒状金具85を押し込んで圧入する。
すなわち、ゴム輪88のフランジ部88ｂを流体管１の外周
面に当接させ、さらに取付金具26の下降で筒状金具85が
ゴム輪88内を通過し、ゴム輪88の環状突部88ｃを外周側
へ反転させて流体管１の内周面に当接させ、筒状金具85
の下端をゴム輪88の下端より下方に突出させる。Next, the valve 10 is opened (valve 17 is closed), the handle 44 is turned to lower the mounting metal fitting 26, etc., and the rubber ring 88 and the tubular metal fitting 85 are pushed into the branch port 2 and press-fitted.
That is, the flange portion 88b of the rubber ring 88 is brought into contact with the outer peripheral surface of the fluid pipe 1, and the tubular metal fitting 85 passes through the inside of the rubber ring 88 when the mounting metal fitting 26 is lowered, so that the annular protrusion 88c of the rubber ring 88 is removed. It is turned to the outer peripheral side and brought into contact with the inner peripheral surface of the fluid pipe 1,
The lower end of the rubber ring 88 is projected below the lower end of the rubber ring 88.

【００２１】次に、拡径装置90を上方筒部５ｂに袋ナッ
ト93で取付け、かつ主軸60にハンドル76を取付ける。そ
してハンドル76を回転して主軸60を降ろし、主軸60の下
端面が筒状金具85の下端面より下の位置となるようにし
た後、ナット77を緩めて可動軸62を主軸60に対して降ろ
すと、フック部材65はテーパ面56を滑りながら降下して
係止凹部70が係止突部71に係止する。係止後、ナット77
を再び固定する。これによりフック部材65は堅固にロッ
クされ、成形面64が窓58から突出した傾動状態になる。
しかる後、ハンドル76を反転させ主軸60を少し引き上
げ、フック部材65を筒状金具85の下端面に当接させると
ともに、キー溝81，122にキー121を装着し、拡径治具55
の主軸60と回転ねじ部材97を一体化する。Next, the diameter expanding device 90 is attached to the upper tubular portion 5b with the cap nut 93, and the handle 76 is attached to the main shaft 60. Then, the handle 76 is rotated to lower the main shaft 60 so that the lower end surface of the main shaft 60 is located below the lower end surface of the tubular metal fitting 85, and then the nut 77 is loosened to move the movable shaft 62 relative to the main shaft 60. When lowered, the hook member 65 slides down the tapered surface 56, and the locking recess 70 is locked by the locking projection 71. After locking, nut 77
Fix again. As a result, the hook member 65 is firmly locked, and the molding surface 64 is in a tilted state protruding from the window 58.
Thereafter, the handle 76 is inverted and the main shaft 60 is pulled up a little, the hook member 65 is brought into contact with the lower end surface of the tubular metal fitting 85, the key 121 is attached to the key grooves 81 and 122, and the diameter expansion jig 55 is attached.
The main shaft 60 and the rotary screw member 97 are integrated.

【００２２】次に、ハンドル103に連結したトルクレン
チ112を操作して回転ねじ部材97をケース本体91内にお
いて上下動させると、回転ねじ部材97のめねじ101と螺
合している主軸60も同時に上下動し、これによりフック
部材65が小刻みな上下運動を繰り返し、筒状金具85の下
端面はその成形面64により打撃される。この際、初めは
トルクレンチ112のトルクを低く設定し、主軸60の上下
ストロークを小さくして打撃を繰り返しながら１回転す
る。数回に分けて徐々にトルクを上げ、主軸60の昇降ス
トロークを大きくして筒状金具85の下端部を拡径する。
また、回転ねじ部材97の上下動の都度、送り回転爪115
が前記のようにギヤ102間に入り込んで回転ねじ部材97
を１ピッチぶん送り、回転する。このようにして筒状金
具85の下端面はその全周にわたり徐々に拡径され、ラッ
パ状の拡径部125に形成される。図11はこの拡径作業の
状態を示す。このラッパ状の拡径部125に成形された筒
状金具85の下端部の外径は流体管１の分岐口２の口径よ
りも大きくなっている。この拡径に際し、小刻みに上下
動かつ回動する主軸60に配置されたフック部材65の成形
面64からの打撃を受ける筒状金具85の下端面は、ゴム輪
88の下端部の環状突部88ｃを内包、かつ管内面へ押圧す
るように拡径部125に、その上部が座屈することなく容
易に形成される。Next, when the rotary screw member 97 is moved up and down in the case body 91 by operating the torque wrench 112 connected to the handle 103, the main shaft 60 screwed with the female screw 101 of the rotary screw member 97 is also moved. At the same time, it moves up and down, whereby the hook member 65 repeats a small up and down motion, and the lower end surface of the tubular metal fitting 85 is hit by the molding surface 64. At this time, the torque of the torque wrench 112 is initially set to be low, the vertical stroke of the main shaft 60 is made small, and one revolution is made while repeatedly striking. The torque is gradually increased in several steps to increase the elevating stroke of the main shaft 60 and increase the diameter of the lower end of the tubular metal fitting 85.
Further, each time the rotary screw member 97 moves up and down, the feed rotary pawl 115
Is inserted between the gears 102 as described above, and the rotary screw member 97
Feed 1 pitch and rotate. In this way, the lower end surface of the tubular metal member 85 is gradually expanded in diameter over the entire circumference thereof to form the trumpet-shaped expanded diameter portion 125. FIG. 11 shows the state of this diameter expansion work. The outer diameter of the lower end portion of the tubular metal fitting 85 formed in the flared enlarged portion 125 is larger than the diameter of the branch port 2 of the fluid pipe 1. At the time of this diameter expansion, the lower end surface of the tubular metal fitting 85, which is hit by the molding surface 64 of the hook member 65 arranged on the main shaft 60 which moves up and down in small steps, has a rubber ring.
The annular projection 88c at the lower end of 88 is contained in the expanded diameter portion 125 so as to be pressed against the inner surface of the pipe, and the upper portion thereof is easily formed without buckling.

【００２３】拡径が終わったらハンドル103（トルクレ
ンチ112）を上げてフック部材65の成形面64と筒状金具8
5の拡径部125とを離し、該状態で袋ナット77を取外し、
調整ナット82を締め付けると、フック部材65は主軸60内
に収容されて固定される。この状態で上方筒部５ｂの上
端に螺合する袋ナット93を緩めて外し、拡径治具55の下
端がボールバルブ30より上になるまで拡径装置90全体を
上方に上げ、ボールバルブ30を締め、締めた後に拡径装
置90をさらに上げることにより、（又は前記フック部材
65を主軸60内に収容後キー溝81，122内のキー121を外
し、ハンドル76を反転することで拡径治具55下端がボー
ルバルブ30より上になるまで引き上げ、ボールバルブ30
を締め、締めた後に袋ナット93を外し、拡径装置90を上
げることにより、）拡径治具55を含めて拡径装置90を筒
部５から取り外す。そして鞍３を取り外す。しかる後、
止水治具126を図12のように押え部材32の軸孔31に下端
部から挿入し、挿入後にボールバルブ30を開ける。この
止水治具126は図13に示すように外筒127と拡径軸128か
らなっており、拡径軸128の下端部は大径の拡径ヘッド1
29に形成されている。130はヘッド129によって拡径可能
なゴム筒、131はパッキン、132は拡径軸128の上端部外
周に形成のおねじ133に螺合するナット、134はワッシャ
である。When the diameter expansion is completed, the handle 103 (torque wrench 112) is raised to raise the molding surface 64 of the hook member 65 and the tubular metal fitting 8
5 and the expanded diameter portion 125, and in that state remove the cap nut 77,
When the adjusting nut 82 is tightened, the hook member 65 is housed and fixed in the main shaft 60. In this state, the cap nut 93 screwed onto the upper end of the upper tubular portion 5b is loosened and removed, and the entire diameter expansion device 90 is raised upward until the lower end of the diameter expansion jig 55 is above the ball valve 30. (Or the hook member by further raising the diameter expansion device 90 after tightening the
After the 65 is housed in the main shaft 60, the key 121 in the key grooves 81 and 122 is removed, and the handle 76 is inverted to pull up the diameter expansion jig 55 until the lower end is above the ball valve 30.
After tightening, the cap nut 93 is removed, and the diametrical expansion device 90 is raised to remove the diametrical expansion device 90 including the diametrical expansion jig 55 from the tubular portion 5. Then, the saddle 3 is removed. After a while
The water stop jig 126 is inserted into the shaft hole 31 of the holding member 32 from the lower end as shown in FIG. 12, and the ball valve 30 is opened after the insertion. As shown in FIG. 13, the water stopping jig 126 is composed of an outer cylinder 127 and a diameter expanding shaft 128, and the lower end of the diameter expanding shaft 128 has a large diameter expanding head 1
It is formed in 29. 130 is a rubber tube whose diameter can be expanded by the head 129, 131 is packing, 132 is a nut screwed to the male screw 133 formed on the outer circumference of the upper end of the diameter expansion shaft 128, and 134 is a washer.

【００２４】ボールバルブ30の開放により止水治具126
をゴム筒130が筒状金具85の拡径部125より下になるまで
差し込む。しかる後、ナット132を締め付けて拡径軸128
を引き上げヘッド129でゴム筒130を拡径して拡径部125
の内面に圧接させる。これにより筒状金具85の拡径面は
止水のための栓がされた状態となる。次に、図14に示す
ように取付金具26をナット83から取り外し、ナット83に
今度は分水栓140を取付ける。取付後、止水治具126を分
水栓140の中ほどより上まで引き上げ、分水栓140を閉め
止水治具126を引き抜く（図15）。By opening the ball valve 30, the water stop jig 126
Is inserted until the rubber tube 130 is below the expanded diameter portion 125 of the tubular fitting 85. After that, tighten the nut 132 and expand the diameter expansion shaft 128.
Raise the diameter of the rubber tube 130 with the head 129
Press the inner surface of the. As a result, the expanded surface of the tubular fitting 85 is in a state of being plugged for stopping water. Next, as shown in FIG. 14, the mounting bracket 26 is removed from the nut 83, and then the water distributor 140 is attached to the nut 83. After mounting, the water stop jig 126 is pulled up to a position above the middle of the water stopcock 140, the water stopcock 140 is closed, and the water stop jig 126 is pulled out (FIG. 15).

【００２５】この実施例において、回転ねじ部材97の具
体的構成、及び該部材を１ピッチずつ送る構成等は一例
を示したにすぎず、他の構成例を排除するものではな
い。第１の操作部材としてのハンドル44、第２の操作部
材としてのハンドル103等、第３の操作部材としてのハ
ンドル76も同様である。また、この実施例では不断水時
の取付を示したが、断水時の取付も可能であることは言
うまでもない。In this embodiment, the specific structure of the rotary screw member 97 and the structure of feeding the member one pitch at a time are merely examples, and other structure examples are not excluded. The same applies to the handle 44 serving as the first operating member, the handle 103 serving as the second operating member, and the like, and the handle 76 serving as the third operating member. Further, in this embodiment, the mounting at the time of water interruption was shown, but it goes without saying that the mounting at the time of water interruption is also possible.

【００２６】[0026]

【発明の効果】請求項１ないし５の発明は前記のように
して分水栓を取付けるので、拡径後の分水栓の下端拡径
面と流体管の内周面との間の面間差を全周にわたって均
一で、かつ小さくすることができ、流体管の口径が小さ
い場合でも従来のような流水断面積が小さくなるような
ことがない。しかも拡径部が全周にわたり離脱阻止力と
して働くので、取付状態を長期にわたり安定して維持す
ることができるという優れた効果がある。According to the inventions of claims 1 to 5, the water dip is mounted as described above, and therefore, the space between the lower end expanded surface of the water dip after expansion and the inner peripheral surface of the fluid pipe. The difference can be made uniform and small over the entire circumference, and even if the diameter of the fluid pipe is small, the flowing water cross-sectional area as in the conventional case does not become small. Moreover, since the expanded diameter portion acts as a separation preventing force over the entire circumference, there is an excellent effect that the attached state can be stably maintained for a long period of time.

【図面の簡単な説明】[Brief description of drawings]

【図１】この発明の一実施例を示す分水栓の取付装置の
縦断正面図である。FIG. 1 is a vertical sectional front view of a water faucet mounting device showing an embodiment of the present invention.

【図２】同側面図である。FIG. 2 is a side view of the same.

【図３】拡径治具の縦断面図である。FIG. 3 is a vertical cross-sectional view of a diameter expanding jig.

【図４】拡径装置等を示す縦断面図である。FIG. 4 is a vertical sectional view showing a diameter expanding device and the like.

【図５】図４の線Ｖに沿う平面図である。5 is a plan view taken along the line V in FIG.

【図６】回転ねじ部材の要部縦断面図である。FIG. 6 is a longitudinal sectional view of a main part of a rotary screw member.

【図７】回転ねじ部材の要部斜視図である。FIG. 7 is a perspective view of a main part of a rotary screw member.

【図８】(Ａ)〜(Ｃ)は回転ねじ部材の作用説明図であ
る。FIGS. 8A to 8C are explanatory views of the operation of the rotary screw member.

【図９】回転ねじ部材の作用説明用線図である。FIG. 9 is a diagram for explaining the action of the rotary screw member.

【図１０】キーの斜視図である。FIG. 10 is a perspective view of a key.

【図１１】作用説明図である。FIG. 11 is an operation explanatory view.

【図１２】作用説明図である。FIG. 12 is an operation explanatory view.

【図１３】(Ａ)，(Ｂ)は止水治具の縦断面図である。13A and 13B are vertical cross-sectional views of the water stop jig.

【図１４】作用説明図である。FIG. 14 is an operation explanatory view.

【図１５】分水栓の取付完了状態を示す図面である。FIG. 15 is a view showing a completed state of attachment of the water faucet.

【図１６】従来の分水栓取付状態図である。FIG. 16 is a view showing a conventional water faucet mounting state.

【符号の説明】[Explanation of symbols]

１流体管２分岐口３鞍４取付具５筒部５ａ下方筒部５ｂ上方筒部 10 止水用バルブ 17 水抜きバルブ 26 取付金具 30 ボールバルブ 32 押え部材 44 操作ハンドル 47 加圧部材 55 拡径治具 60 主軸 62 可動軸 65 フック部材 76 操作ハンドル 85 筒状金具 88 ゴム輪 90 拡径装置 97 回転ねじ部材 97ａ非ねじ部分 97ｂねじ部分 102 ギヤ 102ａ下方ギヤ部 102ｂ上方ギヤ部 103 成形ハンドル 115 送り回転爪 125 拡径部 126 止水治具 140 分水栓 1 Fluid Pipe 2 Branch Port 3 Saddle 4 Fitting 5 Cylindrical Section 5a Lower Cylindrical Section 5b Upper Cylindrical Section 10 Water Stop Valve 17 Drain Valve 26 Mounting Bracket 30 Ball Valve 32 Presser Member 44 Operation Handle 47 Pressurizing Member 55 Expanding Diameter Jig 60 Main shaft 62 Movable shaft 65 Hook member 76 Operation handle 85 Cylindrical metal fitting 88 Rubber ring 90 Expander 97 Rotating screw member 97a Non-screw part 97b Screw part 102 Gear 102a Lower gear part 102b Upper gear part 103 Forming handle 115 Feed Rotating claw 125 Expanding part 126 Water stop jig 140 Water tap

Claims

【特許請求の範囲】[Claims]

【請求項１】流体管に穿設される分岐口より大きい径
の中空筒部を有し、該筒部が分岐口の回りに上向きとな
るように流体管の外周に着脱可能に設置された鞍と、この鞍の筒部内に上下動可能に収納され、中心部に上下
端開口の軸孔を有する筒状金具装着用取付部材と、上端が開口し、かつ底部が下向き傾斜のテーパ面に形成
された軸孔を有し、該軸孔のテーパ面と対向する周壁に
フック部材突出用窓が切欠き形成されているとともに、
上端部外周面におねじが形成された主軸と、この主軸の
軸孔に上下動可能に嵌合された可動軸と、この可動軸の
下端にピンで軸線に対し所定角度傾動可能に枢支され、
可動軸の下動により主軸のテーパ面を摺動して傾動し成
形面を前記窓から外方に突出するフック部材とからな
り、主軸が前記取付部材の軸孔に嵌挿して保持された拡
径治具と、この拡径治具を軸孔で保持した前記取付部材をその下端
部が流体管の分岐口に嵌入可能に上下動させる第１の操
作部材と、前記鞍の筒部の上端部に着脱可能に設置されるケース本
体を有し、該ケース本体内に前記拡径治具の主軸のおね
じと螺合するめねじが中心部の軸孔に形成された回転ね
じ部材が主軸と係合部材によって係脱可能に嵌挿され、
この回転ねじ部材を主軸と係合した状態で拡径可能な所
定の上下ストロークの範囲で任意のストローク上下動さ
せ、かつこの１回の上下動ストロークにつき所定ピッチ
ずつ回転させる第２の操作部材がケース本体に設けら
れ、また回転ねじ部材と主軸が係合しない状態で回転ね
じ部材に対して主軸を上下動させる第３の操作部材が設
けられた拡径装置とを具えたことを特徴とする分岐管の
取付装置。1. A hollow pipe portion having a diameter larger than that of a branch port formed in the fluid pipe, and the hollow pipe portion being detachably installed on the outer periphery of the fluid pipe so as to face upward around the branch port. A saddle and a tubular metal fitting mounting member that is housed in the tubular portion of the saddle so as to be movable up and down, and has a shaft hole with upper and lower end openings in the central portion, and a tapered surface with an upper end open and a lower portion inclined downward. The shaft member has a formed shaft hole, and a hook member projecting window is formed in a notch on a peripheral wall facing the tapered surface of the shaft hole.
A main shaft having a screw formed on the outer peripheral surface of the upper end, a movable shaft fitted in a shaft hole of the main shaft so as to be movable up and down, and a pivot at a lower end of the movable shaft that can be tilted at a predetermined angle with respect to the axis. Is
The movable shaft is slid on the tapered surface of the main shaft due to the downward movement of the movable shaft, and the molding surface is projected outward from the window by a hook member, and the main shaft is inserted into a shaft hole of the mounting member and held by the expansion member. Diameter jig, a first operating member for vertically moving the attachment member holding the diameter expansion jig in a shaft hole so that the lower end portion thereof can be fitted into the branch opening of the fluid pipe, and the upper end of the saddle cylinder portion. Has a case body detachably installed in the main body, and the main body is a rotary screw member in which a female screw to be screwed with the male screw of the main shaft of the diameter expanding jig is formed in the shaft hole of the central portion in the case body. The engagement member is removably fitted and inserted,
There is provided a second operating member for vertically moving an arbitrary stroke within a range of a predetermined vertical stroke capable of expanding the diameter of the rotary screw member in a state of being engaged with the main shaft, and rotating the rotary screw member at a predetermined pitch for each vertical movement stroke. A diameter expanding device provided on the case body, and further comprising a third operating member for moving the main shaft up and down with respect to the rotary screw member in a state where the rotary screw member and the main shaft are not engaged with each other. Branch pipe mounting device.

【請求項２】係合部材が回転ねじ部材と主軸の相対向
する面に形成のキー溝間に着脱可能に装着されるキーで
ある請求項１記載の分岐管の取付装置。2. The branch pipe mounting device according to claim 1, wherein the engaging member is a key that is detachably mounted between key grooves formed on the surfaces of the rotary screw member and the main shaft that face each other.

【請求項３】鞍の筒部が下方筒部と該筒部に着脱可能
に取付けられた上方筒部からなり、かつ下方筒部に止水
用バルブ及び水抜きバルブが取付けられている請求項１
又は２記載の分岐管の取付装置。3. The saddle cylinder part is composed of a lower cylinder part and an upper cylinder part detachably attached to the cylinder part, and a water shutoff valve and a drain valve are attached to the lower cylinder part. 1
Alternatively, the branch pipe mounting device according to item 2.

【請求項４】取付部材に軸孔を開閉可能なバルブが設
けられ、このバルブが鞍の外側から開閉操作可能となっ
ている請求項１〜３のいずれかに記載の分岐管の取付装
置。4. The branch pipe mounting device according to claim 1, wherein the mounting member is provided with a valve capable of opening and closing the shaft hole, and the valve can be opened and closed from the outside of the saddle.

【請求項５】回転ねじ部材が主軸に嵌挿された下方の
非ねじ部分と、主軸のおねじに螺合するめねじを有する
上方のねじ部分とからなり、ねじ部分の外周面には軸線
と平行な下方ギヤ部と軸線に対して所定角度で傾いた上
方ギヤ部とからなるギヤが複数個、円周方向に所定の間
隔をおいて設けられている請求項１〜４のいずれかに記
載の分岐管の取付装置。5. A rotary screw member is composed of a lower non-threaded portion fitted into a main shaft and an upper threaded portion having a female thread to be screwed into an external thread of the main spindle, and an outer peripheral surface of the threaded portion has an axis line. 5. A plurality of gears each comprising a parallel lower gear portion and an upper gear portion inclined at a predetermined angle with respect to the axis line are provided at predetermined intervals in the circumferential direction. Branch pipe mounting device.