JP2013253678A - Connector and connecting apparatus for concrete member using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector that reduces a manufacturing cost of a male locking member, while ensuring strength with respect to shear load, and a connecting apparatus for a concrete member using the same.SOLUTION: A casing 3 contains a housing chamber 4 with an opening formed at a tip. A wedged female locking member 12 divided circumferentially is arranged in the housing chamber 4 so as to slide in an axial direction. A connector includes a female connecting member 1 formed by biasing a female locking member 12 forward by a biasing means 15, and a male connecting member 2 with a male locking member 23 formed at the tip. On an inner wall of a hollow 22a part of a connecting body 22 in the male connecting member 2, a female screw 22b is formed. At the tip of the female screw 22b, a cylinder part 22c with no screw is formed. In at least a part of a base part of the male locking member 23, a cylinder part 25b to be fitted into the cylinder part 22c is provided. A male screw 23c is formed to be screwed with the female screw 22b of the connecting body 22, in a deeper part than the base part.

Description

本発明は、連結具及びそれを用いたコンクリート部材の連結装置に関する。   The present invention relates to a connector and a connecting device for a concrete member using the same.

従来、部材相互の連結具として、図９に示すような、雌型連結部材１００と雄型連結部材１０１が知られている。   Conventionally, a female connection member 100 and a male connection member 101 as shown in FIG.

前記雌型連結部材１００は、内部にテーパ穴１０２を形成するとともに、そのテーパ穴１０２の内面に軸方向に沿った摺動案内突条を周方向に分割して複数形成したケーシング１０３と、外面を前記テーパ穴１０２に沿うテーパ面１０４に形成するとともに内面に雌ねじ１０５を形成した雌型係止部材（楔ナット）１０６と、この楔ナット１０６を押圧する圧縮バネ１０７を有する。   The female connecting member 100 includes a casing 103 having a tapered hole 102 formed therein, and a plurality of sliding guide protrusions extending along the axial direction formed on the inner surface of the tapered hole 102 in the circumferential direction, and an outer surface. Are formed on a tapered surface 104 along the tapered hole 102 and a female locking member (wedge nut) 106 having an internal thread 105 formed on the inner surface thereof, and a compression spring 107 that presses the wedge nut 106.

また、前記雄型連結部材１０１は、変形できる部材、例えば、発泡スチロール、ゴム等の弾性材、樹脂、ダンボールなどで形成された円筒状の調整部材１０８内に連結体１０９を設け、該連結体１０９の先部に雄型係止部材１１０を設け、該雄型係止部材１１０の外周部には、前記雌型連結部材１００の雌ねじ１０５と噛合する雄ねじ１１１が刻設されている。   The male connecting member 101 is provided with a connecting body 109 in a cylindrical adjusting member 108 formed of a deformable member, for example, an elastic material such as foamed polystyrene or rubber, resin, cardboard or the like. A male locking member 110 is provided at the tip of the male locking member 110, and a male screw 111 that meshes with the female screw 105 of the female connecting member 100 is formed on the outer periphery of the male locking member 110.

前記連結体１０９の後部には、アンカーバー１１２が螺着して固設され、該アンカーバー１１２の後端には抜け止め部が設けられ、アンカーバー１１２の外周には、ゴム等の弾性材もしくは金属からなる空間保持用のパイプ１１３が設けられている。空間保持用のパイプ１１３の前側端部は、調整部材１０８の後側に係止し、後側端部は、アンカーバー１１２の抜け止め部に設けられたゴム等の弾性材からなる座部材に係止している。アンカーバー１１２と空間保持用のパイプ１１３との間には空隙１１４が設けられている。   An anchor bar 112 is screwed and fixed to the rear portion of the connecting body 109, and a retaining portion is provided at the rear end of the anchor bar 112. An elastic material such as rubber is provided on the outer periphery of the anchor bar 112. Alternatively, a space holding pipe 113 made of metal is provided. The front end portion of the space holding pipe 113 is locked to the rear side of the adjustment member 108, and the rear end portion is a seat member made of an elastic material such as rubber provided at a retaining portion of the anchor bar 112. Locked. A gap 114 is provided between the anchor bar 112 and the space holding pipe 113.

そして、この連結具における連結に際しては、その雌型連結部材１００を回転することなく該雌型連結部材１００に前記雄型係止部材１１０を挿通することにより、分割された楔ナット１０６の雌ねじ１０５が雄型係止部材１１０の雄ねじ１１１に係合してその楔ナット１０６が圧縮バネ１０７に抗して大径側へ押され、複数個の楔ナット１０６で形成される雌ねじ穴の内径が拡径して雄型係止部材１１０を雌型連結部材１００の所定位置まで挿通でき、その挿通が終ると、圧縮バネ１０７の付勢力によって楔ナット１０６の雌ねじ１０５が雄型係止部材１１０の雄ねじ１１１に噛合し、雌型連結部材１００と雄型連結部材１０１の連結が行われるようになっている。   Then, when connecting in this connector, the male locking member 110 is inserted into the female connecting member 100 without rotating the female connecting member 100, whereby the female screw 105 of the divided wedge nut 106 is inserted. Engages with the male screw 111 of the male locking member 110 and the wedge nut 106 is pushed to the large diameter side against the compression spring 107, and the inner diameter of the female screw hole formed by the plurality of wedge nuts 106 is increased. The male locking member 110 can be inserted into a predetermined position of the female coupling member 100 and the female screw 105 of the wedge nut 106 is moved by the urging force of the compression spring 107 when the insertion is finished. 111, the female connecting member 100 and the male connecting member 101 are connected.

前記のように構成された連結具を用いて、例えば、トンネルに用いるコンクリート製のシールドセグメント相互を連結する要望がある。この場合、図１０に示すように、前記連結具の雌型連結部材１００を一方のシールドセグメント１２０に設け、雄型連結部材１０１を他方のシールドセグメント１２１に設ける。   There is a demand for connecting shield segments made of concrete, for example, used in tunnels, using the connector configured as described above. In this case, as shown in FIG. 10, the female connecting member 100 of the connector is provided on one shield segment 120, and the male connecting member 101 is provided on the other shield segment 121.

雌型連結部材１００の軸芯と雄型連結部材１０１の軸芯とが、図１１に示すように、相互に非同芯状態（目違い状態）で雌型連結部材１００と雄型連結部材１０１とを連結することがあり、この際においても、雄型連結部材１０１は、調整部材１０８と空隙保持用パイプ１１３と空隙１１４により、アンカーバー１１２の抜け止め部を中心として、雌型連結部材１００が位置する側の方向に回動することができるため、前記雌型連結部材１００に前記雄型係止部材１１０が挿通し、両連結部材１００、１０１を連結することが出来る。   As shown in FIG. 11, the female coupling member 100 and the male coupling member 101 are in a non-concentric state (misalignment state) with each other. Also in this case, the male connecting member 101 is connected to the female connecting member 100 around the retaining portion of the anchor bar 112 by the adjusting member 108, the gap holding pipe 113 and the gap 114. Therefore, the male locking member 110 can be inserted into the female connecting member 100 and the connecting members 100 and 101 can be connected to each other.

前記雄型連結部材１０１の連結体１０９内には軸方向の両端が開口する中空部が形成され、該中空部の内壁全体に亘って雌ねじが刻設さている。この雌ねじに雄型係止部材１１０の奥側に刻設した雄ねじを螺合することで、雄型係止部材１１０を連結体１０９に取付けるようになっている。   A hollow portion having both ends opened in the axial direction is formed in the connecting body 109 of the male connecting member 101, and a female screw is engraved over the entire inner wall of the hollow portion. The male locking member 110 is attached to the coupling body 109 by screwing a male screw carved on the back side of the male locking member 110 into the female screw.

両シールドセグメント１２０，１２１の連結時において雄型係止部材１１０に加わる剪断荷重に対する強度を確保するために、雄型係止部材１１０は、一定以上の直径を有する必要があり、製造コスト上の問題があった。   In order to secure the strength against the shear load applied to the male locking member 110 when the shield segments 120 and 121 are connected, the male locking member 110 needs to have a certain diameter or more. There was a problem.

そこで本発明は、剪断荷重に対する強度を確保しつつ、雄型係止部材の製造コストを低減した連結具およびそれを用いたコンクリート部材の連結装置を提供することを目的とするものである。   Therefore, an object of the present invention is to provide a coupling tool that reduces the manufacturing cost of a male locking member while securing strength against a shearing load, and a concrete member coupling device using the coupling tool.

前記課題を解決するために、請求項１記載の発明は、ケーシング内に先端部が開口する収納室を設け、該収納室内に、先方が縮径するテーパ面を有するテーパ穴を形成し、該テーパ穴内に、周方向に分割された楔状の雌型係止部材を軸方向に摺動可能に配置するとともに、該雌型係止部材の内面に複数の係止山からなる係止部を刻設し、前記雌型係止部材を付勢手段で先方へ付勢した雌型連結部材と、
複数の係止山からなる係止部を刻設した雄型係止部材を先部に設けた雄型連結部材とで構成され、
前記雄型係止部材を、前記雌型係止部材により構成される係止穴に挿入することにより該係止穴が拡径し、その後、付勢手段により前記係止穴が縮径し前記雌型係止部材の係止部と、前記雄型係止部材の係止部とが噛合するようにした連結具であって、
前記雄型連結部材は、先部が開口する中空部を有する連結体を備え、該連結体の中空部内壁には雌ねじが刻設されるとともに、この雌ねじの先部には無ねじ状に形成した円筒部を設け、
前記雄型係止部材の基部の少なくとも一部には、前記連結体の円筒部内に嵌合する円筒部を設け、前記基部より奥部には、前記連結体の雌ねじと螺合する雄ねじを刻設したことを特徴とする連結具である。 In order to solve the above-mentioned problem, the invention according to claim 1 is provided with a storage chamber having an open end in the casing, and a tapered hole having a tapered surface whose diameter is reduced at the tip is formed in the storage chamber. A wedge-shaped female locking member divided in the circumferential direction is disposed in the tapered hole so as to be slidable in the axial direction, and a locking portion made of a plurality of locking mountains is formed on the inner surface of the female locking member. A female coupling member that biases the female locking member forward by a biasing means;
It is composed of a male locking member provided with a male locking member in which a locking portion made of a plurality of locking mountains is engraved,
By inserting the male locking member into a locking hole constituted by the female locking member, the diameter of the locking hole is expanded, and then the locking hole is reduced in diameter by an urging means. A coupling tool in which a locking portion of a female locking member and a locking portion of the male locking member are engaged with each other,
The male connecting member includes a connecting body having a hollow portion whose front end is open, and a female screw is engraved on the inner wall of the hollow portion of the connecting body. Provided a cylindrical portion,
At least a part of the base portion of the male locking member is provided with a cylindrical portion that fits into the cylindrical portion of the coupling body, and a male screw that engages with the female thread of the coupling body is engraved behind the base portion. It is the connection tool characterized by having provided.

請求項２記載の発明は、請求項１記載の連結具において、前記雌型係止部材の係止部を雌ねじで形成し、雄型係止部材の係止部を前記雌ねじに係合する雄ねじで形成し、前記雌ねじと雄ねじにおける呼び径に対するピッチを、ＪＩＳに規定する細目ねじの呼び径に対するねじピッチよりも小さく設定したことを特徴とするものである。   According to a second aspect of the present invention, in the connector according to the first aspect of the present invention, a male screw is formed in which the locking portion of the female locking member is formed by a female screw and the locking portion of the male locking member is engaged with the female screw. And the pitch with respect to the nominal diameter of the female screw and the male screw is set smaller than the thread pitch with respect to the nominal diameter of the fine screw defined in JIS.

請求項３記載の発明は、請求項１記載の連結具において、前記雌型係止部材の係止部を、周方向に環状に形成された平行な係止山と平行な係止溝で形成し、
前記雄型係止部材の係止部を、前記係止山と係止溝に嵌合する係止溝と係止山で形成し、
前記係止山における呼び径に対するピッチを、ＪＩＳに規定する細目ねじの呼び径に対するねじピッチよりも小さく設定したことを特徴とするものである。 According to a third aspect of the present invention, in the connecting device according to the first aspect, the locking portion of the female locking member is formed by a locking groove parallel to a parallel locking mountain formed in an annular shape in the circumferential direction. And
The locking portion of the male locking member is formed by a locking groove and a locking mountain that fit into the locking mountain and the locking groove,
The pitch with respect to the nominal diameter of the locking thread is set to be smaller than the thread pitch with respect to the nominal diameter of the fine screw specified in JIS.

請求項４記載の発明は、請求項１乃至３記載の連結具において、前記連結体の外周面を円形に形成し、該連結体の外周に変形できる部材で形成した調整部材を設けたことを特徴とするものである。   According to a fourth aspect of the present invention, in the connector according to any one of the first to third aspects, an outer peripheral surface of the connecting body is formed in a circular shape, and an adjusting member formed of a deformable member is provided on the outer periphery of the connecting body. It is a feature.

請求項５記載の発明は、請求項１乃至４記載の連結具において、前記雌型連結部材の前記雌型係止部材と前記付勢手段との間に、ワッシャを複数枚設けたことを特徴とするものである。   A fifth aspect of the present invention is the connector according to any one of the first to fourth aspects, wherein a plurality of washers are provided between the female locking member of the female coupling member and the biasing means. It is what.

請求項６記載の発明は、前記請求項１乃至５の何れか１項に記載の連結具を用い、
前記雌型連結部材を、連結すべき一方のコンクリート部材に固設し、前記雄型連結部材を連結すべき他方のコンクリート部材に固設したことを特徴とするコンクリート部材の連結装置である。 The invention according to claim 6 uses the connector according to any one of claims 1 to 5,
The female-type connecting member is fixed to one concrete member to be connected, and the male-type connecting member is fixed to the other concrete member to be connected.

請求項７記載の発明は、請求項６記載のコンクリート部材の連結装置において、前記コンクリート部材が、シールドセグメントであることを特徴とするものである。   The invention according to claim 7 is the connecting device for a concrete member according to claim 6, wherein the concrete member is a shield segment.

本発明は、雄型連結部材の連結体における中空内の先部に無ねじ状の円筒部を設け、この円筒部に雄型係止部材の基部の一部を嵌合したことにより、雄型係止部材に加わる剪断荷重に対する強度を上げることができる。そのため、雄型係止部材を細くすることができ、雄型連結部材の製造コストを低減できる。   The present invention provides a male part by providing a screwless cylindrical part at the front end in the hollow of the coupling body of the male coupling member, and fitting a part of the base part of the male locking member into this cylindrical part. The strength against the shear load applied to the locking member can be increased. Therefore, the male locking member can be thinned, and the manufacturing cost of the male coupling member can be reduced.

本発明の実施例１における雌型連結部材の半面を断面とした部分断面図。The fragmentary sectional view which made the half surface of the female type | mold coupling member in Example 1 of this invention the cross section. 本発明の実施例１における雄型連結部材の半面を断面とした部分断面図。The fragmentary sectional view which made the half surface of the male connection member in Example 1 of this invention the cross section. 本発明の実施例１における雌型連結部材と雄型連結部材の連結状態を示す半面を断面とした部分断面図。The fragmentary sectional view which made the cross section the half surface which shows the connection state of the female type | mold connection member and male type | mold connection member in Example 1 of this invention. 図１のＡ−Ａ線断面図。AA sectional view taken on the line AA of FIG. 本発明の実施例１における雌型係止部材及び雄型係止部材の係止部の拡大側面図。The enlarged side view of the latching | locking part of the female locking member and the male locking member in Example 1 of this invention. 本発明の実施例２における雌型係止部材及び雄型係止部材の係止部の拡大側面図。The expanded side view of the latching | locking part of the female locking member and the male locking member in Example 2 of this invention. 本発明の実施例３における雌型連結部材の側断面図。The sectional side view of the female type | mold connection member in Example 3 of this invention. 図７のＢ−Ｂ線断面図。BB sectional drawing of FIG. 従来の雄形連結部材と雌型連結部材の部分側断面図。The fragmentary sectional side view of the conventional male connection member and a female type | mold connection member. 従来の連結具をシールドセグメントの連結に適用した状態を示す側断面図。The sectional side view which shows the state which applied the conventional connector for the connection of the shield segment. 従来の連結具における、雄型連結部材と雌型連結部材との軸芯が異なる状態における連結操作を説明するため側断面図。The sectional side view for demonstrating connection operation in the state from which the axial center of a male type connection member and a female type connection member differs in the conventional connection tool.

本発明を実施するための形態を図に示す実施例に基づいて説明する。   A mode for carrying out the present invention will be described based on an embodiment shown in the drawings.

［実施例１］
図１乃至図５は、本発明の実施例１を示す。
図１は、本実施例１の雌型連結部材１の半面を断面とした部分断面図を示し、図２は、前記雌型連結部材１と連結する雄型連結部材２の半面を断面とした部分断面図を示すものである。 [Example 1]
1 to 5 show a first embodiment of the present invention.
FIG. 1 is a partial cross-sectional view in which a half surface of the female connection member 1 of the first embodiment is taken as a cross section, and FIG. 2 is a cross section of a half surface of the male connection member 2 connected to the female connection member 1. A partial sectional view is shown.

雌型連結部材１は、ケーシング３を有し、該ケーシング３は、筒状、例えば円筒状に形成され、その内部に収納室４が形成されている。該収納室４の先部は、その内周面を先端部４ａ側から後方（奥部）にかけて内径が徐々に拡大するテーパ面にしてなる円錐状のテーパ穴５に形成され、収納室４の中間部は付勢手段収納部６に形成されている。ケーシング３の後部の内周面には雌ねじ３ａが刻設されている。   The female connecting member 1 has a casing 3, and the casing 3 is formed in a cylindrical shape, for example, a cylindrical shape, and a storage chamber 4 is formed therein. The front portion of the storage chamber 4 is formed in a conical tapered hole 5 having a taper surface whose inner diameter gradually increases from the front end portion 4a side to the rear (back), and the storage chamber 4 has a tapered surface. The intermediate part is formed in the biasing means storage part 6. A female screw 3 a is engraved on the inner peripheral surface of the rear portion of the casing 3.

前記収納室４の先部には挿入部７が形成され、該挿入部７の先端部は開口し、その内周壁には雌ねじ７ａが刻設されている。   An insertion portion 7 is formed at the front portion of the storage chamber 4, a distal end portion of the insertion portion 7 is opened, and a female screw 7 a is engraved on the inner peripheral wall thereof.

前記テーパ穴５内には、軸芯Ｘ−Ｘ方向に沿った摺動案内突条１１が、図４に示すように周方向に分割して複数形成されている。また、前記テーパ穴５内には、図４に示すように周方向に複数に分割してなる楔状の雌型係止部材１２が、前記摺動案内突条１１相互間においてケーシング３の軸芯Ｘ−Ｘ方向に摺動可能に配設されている。雌型係止部材１２の数を、本実施例においては、図４に示すように３個としたが、任意に設定する。なお、以下において、雌型係止部材１２を楔ナット１２ともいう。   In the taper hole 5, a plurality of sliding guide ridges 11 along the axis XX direction are formed in the circumferential direction as shown in FIG. Further, in the tapered hole 5, a wedge-shaped female locking member 12 divided into a plurality in the circumferential direction as shown in FIG. It is arranged to be slidable in the XX direction. In this embodiment, the number of the female locking members 12 is three as shown in FIG. 4, but is arbitrarily set. Hereinafter, the female locking member 12 is also referred to as a wedge nut 12.

更に、該楔状の雌型係止部材１２の外面は、前記テーパ穴５のテーパ面に沿った、すなわち、先端部４ａ側から後方にかけて外径が徐々に拡大するテーパ面１２ａに形成されている。更に、各雌型係止部材１２の内周面には、螺旋状の係止山及び係止溝からなる係止部（雌ねじ）１２ｂが、ケーシング３の軸芯Ｘ−Ｘを中心とする円弧でかつ軸芯Ｘ−Ｘに沿った方向に刻設されている。この螺旋状の係止部１２ｂは、螺旋状に形成されていれば、その断面形状としては任意の形状のねじ山を用いることができ、図５に示すような、軸方向断面が不等辺三角形状で、先部のテーパ角度が小さく形成した、のこぎり刃形状の係止山１２ｄ及び係止溝１２ｅからなる係止部（雌ねじ）１２ｂや、二等辺三角形状、直角三角形等の形状のものを用いることができる。   Further, the outer surface of the wedge-shaped female locking member 12 is formed in a tapered surface 12a along the tapered surface of the tapered hole 5, that is, the outer diameter gradually increases from the front end 4a side toward the rear. . Further, on the inner peripheral surface of each female locking member 12, a locking portion (female screw) 12 b composed of a helical locking mountain and a locking groove is an arc centered on the axis XX of the casing 3. And inscribed in a direction along the axis XX. As long as the helical locking portion 12b is formed in a spiral shape, a thread having an arbitrary shape can be used as its cross-sectional shape, and the axial cross-section as shown in FIG. In the shape, a locking portion (female screw) 12b composed of a sawtooth-shaped locking crest 12d and a locking groove 12e formed with a small taper angle at the tip, and an isosceles triangle shape, a right triangle shape, etc. Can be used.

上記により、複数個の楔ナット１２により、図４に示すように、係止穴（雌ねじ穴）１２ｃが形成され、各楔ナット１２がテーパ面に沿って後退することにより、その雌ねじ穴１２ｃが拡径され、先方へ移動することにより、その雌ねじ穴１２ｃが縮径するようになっている。   As described above, the plurality of wedge nuts 12 form locking holes (female screw holes) 12c as shown in FIG. 4, and each wedge nut 12 moves back along the taper surface so that the female screw holes 12c are formed. The diameter of the female screw hole 12c is reduced by expanding the diameter and moving forward.

また、前記楔ナット１２の後端には、各楔ナット１２に共通して係合する付勢手段受け（バネ受け）１３が配置されている。この付勢手段受け１３の厚みは、例えば、ワッシャの枚数を変えることで、連結するシールドセグメント間に許容される目開き量等に応じて設定する。この付勢手段受け１３の厚みを変えることにより、楔ナット１２の後方への移動量を調節することができる。本実施例では、付勢手段受け１３としてワッシャ１３ａを２枚重ねて用いた。このワッシャ１３ａの枚数は、１枚でも複数でもよく、楔ナット１２の後方への移動量に応じて設定する。このように、ワッシャ１３ａを用いることで、付勢手段受け１３の厚みを容易に変えることができる。   Further, an urging means receiver (spring receiver) 13 that engages with each wedge nut 12 in common is disposed at the rear end of the wedge nut 12. The thickness of the biasing means receiver 13 is set according to the amount of openings allowed between the shield segments to be connected, for example, by changing the number of washers. By changing the thickness of the biasing means receiver 13, the rearward movement amount of the wedge nut 12 can be adjusted. In this embodiment, two washers 13 a are used as the biasing means receiver 13 in a stacked manner. The number of washers 13a may be one or more, and is set according to the amount of movement of the wedge nut 12 in the rear. Thus, the thickness of the biasing means receiver 13 can be easily changed by using the washer 13a.

前記ケーシング３の後部の雌ねじ３ａには、中心部にねじ穴１４ａを形成した蓋板１４が螺着されている。前記付勢手段収納部６内の前記付勢手段受け１３と蓋板１４の間には付勢手段１５が収納されている。該付勢手段１５は、コイルバネ、ゴム、樹脂、ウレタンなどの弾性部材で形成される。本実施例１ではコイルバネを使用して圧縮状態で収納されている。該付勢手段１５の付勢力により各楔ナット１２は、常時先端部４ａ方向へ付勢されている。   A cover plate 14 having a screw hole 14a formed at the center is screwed to the female screw 3a at the rear of the casing 3. An urging means 15 is accommodated between the urging means receiver 13 and the cover plate 14 in the urging means accommodating portion 6. The biasing means 15 is formed of an elastic member such as a coil spring, rubber, resin, or urethane. In the first embodiment, it is housed in a compressed state using a coil spring. Each wedge nut 12 is always urged in the direction of the distal end portion 4a by the urging force of the urging means 15.

前記蓋体１４には、蓋体１４から後方向に突出するアンカーバー１８が螺着して固設されている。アンカーバー１８の後側には、抜け止め部１８ａが外周側へ突出して設けられている。   An anchor bar 18 protruding rearward from the lid body 14 is screwed to the lid body 14 and fixed thereto. On the rear side of the anchor bar 18, a retaining portion 18a is provided so as to protrude to the outer peripheral side.

前記の雌型連結部材１は、一方の連結する部品、例えば、図３に示すようなコンクリート部材であるシールドセグメント１９に、ケーシング３の先端部４ａ側の面３ｃがシールドセグメント１９の接合面１９ａと面一になるように埋設して固設されている。   The female connecting member 1 includes a shield segment 19 which is a part to be connected, for example, a concrete member as shown in FIG. 3, and a surface 3 c on the tip 4 a side of the casing 3 is a joint surface 19 a of the shield segment 19. It is buried and fixed so as to be flush with each other.

次に、雄型連結部材２について説明する。
雄型連結部材２は、変形できる部材、例えば、発泡スチロール、ゴム等の弾性材、樹脂、ダンボールなどで形成された調整部材２１を有する。該調整部材２１は、内周面及び外周面が円形の円筒状に形成され、この調整部材２１内には、外面が円形に形成された連結体２２が設けられている。この連結体２２は、金属製で、軸方向の両端（先端と後端）が開口する中空部２２ａが形成されている。中空部２２ａの内壁には、先部から後端に掛けて雌ねじ２２ｂが刻設され、該雌ねじ２２ｂの先端から連結体２２の先端の間は、無ねじの円筒状に形成された円筒部２２ｃが形成されている。 Next, the male connection member 2 will be described.
The male connecting member 2 has a deformable member, for example, an adjusting member 21 formed of an elastic material such as foamed polystyrene or rubber, resin, cardboard, or the like. The adjustment member 21 has an inner peripheral surface and an outer peripheral surface formed in a circular cylindrical shape, and a connection body 22 having an outer surface formed in a circular shape is provided in the adjustment member 21. The coupling body 22 is made of metal, and has a hollow portion 22a that is open at both axial ends (tip and rear ends). A female screw 22b is engraved on the inner wall of the hollow portion 22a from the front portion to the rear end, and a cylindrical portion 22c formed in the shape of a screwless cylinder is formed between the front end of the female screw 22b and the front end of the coupling body 22. Is formed.

前記連結体２２における雌ねじ２２ｂの先部には、図２に示すように、雄型係止部材２３の奥側に設けられ、かつ、外周に雄ねじが刻設された雌ねじ体２３ａが螺着されている。   As shown in FIG. 2, a female screw body 23a, which is provided on the inner side of the male locking member 23 and has a male screw engraved on the outer periphery thereof, is screwed to the tip of the female screw 22b in the connecting body 22. ing.

前記雄型係止部材２３は、前記連結体２２の先端より突出しており、その先部（前側）には、先部が縮径するドーム状の案内部２４が形成されている。すなわち、先部に前記雌型係止部材１２を誘導する曲面が形成され、その後部、かつ、雄ねじ体２３ａより先部には、例えば図５に示すような、螺旋状の係止山及び係止溝からなる係止部（雄ねじ）２３ｂが刻設されている。   The male locking member 23 protrudes from the tip of the coupling body 22, and a dome-shaped guide portion 24 whose tip diameter is reduced is formed at the tip (front side) thereof. That is, a curved surface for guiding the female locking member 12 is formed at the front part, and at the rear part and the front part from the male screw body 23a, for example, as shown in FIG. A locking part (male screw) 23b made of a stop groove is formed.

この係止部２３ｂは、螺旋状で、前記楔ナット１２の係止部１２ｂに対応した形状であれば任意の形状のものを用いることがで、例えば図５に示すような、軸方向断面が不等辺三角形状で、先部のテーパ角度が小さく形成した、のこぎり刃形状の係止山２３ｄ及び係止溝２３ｅからなる係止部（雄ねじ）２３ｂや、二等辺三角形状、直角三角形等の形状のものを用いることができる。前記係止部２３ｂの直径は、前記各楔ナット１２が最前進した場合に、これらで形成されるねじ穴１２ｃの直径よりも若干大径に設定されている。   The locking portion 23b is spiral and can be of any shape as long as it has a shape corresponding to the locking portion 12b of the wedge nut 12. For example, as shown in FIG. Locking part (male screw) 23b composed of sawtooth-shaped locking crest 23d and locking groove 23e, which is formed in an unequal triangular shape with a small taper angle at the tip, and isosceles triangular shape, right triangle shape, etc. Can be used. The diameter of the locking portion 23b is set to be slightly larger than the diameter of the screw hole 12c formed by each wedge nut 12 when the wedge nut 12 is most advanced.

前記係止部（雄ねじ）２３ｂと雄ねじ体２３ａとの間には基部２５が形成され、該基部２５は、図２に示すように、軸芯Ｙ−Ｙ方向において略同径の無ねじ状の円筒部２５ａで構成されている。   A base portion 25 is formed between the locking portion (male screw) 23b and the male screw body 23a. As shown in FIG. 2, the base portion 25 is a non-screw-like shape having substantially the same diameter in the axial Y-Y direction. It is comprised by the cylindrical part 25a.

該円筒部２５ａの外径は、係止部２３ｂの外径と略同じで、かつ、連結体２２における中空部２２ａの円筒部２２ｃの内径と同じか若干小さく設定され、基部２５の円筒部２２の一部は、中空部２２ａの円筒部２５ａ内に嵌合している。   The outer diameter of the cylindrical portion 25a is substantially the same as the outer diameter of the locking portion 23b, and is set to be the same as or slightly smaller than the inner diameter of the cylindrical portion 22c of the hollow portion 22a in the connecting body 22, and the cylindrical portion 22 of the base portion 25 Is fitted in the cylindrical portion 25a of the hollow portion 22a.

前記連結体２２の後部には、図２に示すように、アンカーバー３０が螺着して固設されている。該アンカーバー３０の後端には抜け止め部３０ａが設けられている。また、アンカーバー３０の外周には、ゴム等の弾性材もしくは金属からなる空間保持用のパイプ３１が設けられている。空間保持用のパイプ３１の前側端部は、前記調整部材２１の後側の係止部２１ａに係止し、後側端部は、アンカーバー３０の抜け止め部３０ａに設けられたゴム等の弾性材からなる座部材３２に係止している。アンカーバー３０と空間保持用のパイプ３１との間には空隙３３が設けられている。   As shown in FIG. 2, an anchor bar 30 is screwed and fixed to the rear portion of the connecting body 22. A retaining portion 30 a is provided at the rear end of the anchor bar 30. A space holding pipe 31 made of an elastic material such as rubber or metal is provided on the outer periphery of the anchor bar 30. The front end of the space holding pipe 31 is locked to the rear locking portion 21a of the adjusting member 21, and the rear end is made of rubber or the like provided on the retaining portion 30a of the anchor bar 30. The seat member 32 made of an elastic material is locked. A gap 33 is provided between the anchor bar 30 and the space holding pipe 31.

なお、空間保持用のパイプ３１と空隙３３を設けることなく、アンカーバー３０における空間保持用のパイプ３１に相当する部分の外周全体にゴム等の弾性材により形成してもよい。例えば、調整部材２１を奥側まで延在させて形成しても良い。   Instead of providing the space holding pipe 31 and the gap 33, the anchor bar 30 may be formed of an elastic material such as rubber on the entire outer periphery of the portion corresponding to the space holding pipe 31. For example, the adjustment member 21 may be formed to extend to the back side.

前記調整部材２１、アンカーバー３０、空間保持用パイプ３１は、図３に示すように、他方の連結する部品、例えば、コンクリート部材であるシールドセグメント３５に、連結体２２の前端面２２ｄがシールドセグメント３５の接合面３５ａと面一になるように埋設して固設されるもので、その前記調整部材２１、空隙保持用パイプ３１、抜け止め部３０ａの外部にはコンクリートが打設されている。   As shown in FIG. 3, the adjustment member 21, the anchor bar 30, and the space holding pipe 31 are connected to the shield segment 35 which is the other connected component, for example, a concrete member, and the front end surface 22d of the coupling body 22 is a shield segment. It is embedded and fixed so as to be flush with the joint surface 35a of the 35, and concrete is placed outside the adjusting member 21, the gap holding pipe 31, and the retaining portion 30a.

また、前記一方のシールドセグメント１９における接合面１９ａには、図示しないシール材が突出して設けられ、他方のシールドセグメント３５における接合面３５ａには、図示しないシール材が突出して設けられている。   Further, a sealing material (not shown) projects from the joint surface 19a of the one shield segment 19, and a sealing material (not shown) projects from the joint surface 35a of the other shield segment 35.

他方の連結する部品３５に設けられた雄型連結部材２は、変形できる部材からなる調整部材２１と空隙３３と空隙保持用パイプ３１と座部材３２の相互作用により、アンカーバー３０の抜け止め部３０ａを中心として、その軸芯Ｙ−Ｙと直交する方向に変位できるようになっている。   The male connecting member 2 provided on the other connecting part 35 is provided with a retaining portion of the anchor bar 30 by the interaction of the adjusting member 21 made of a deformable member, the gap 33, the gap holding pipe 31, and the seat member 32. Centering on 30a, it can be displaced in a direction perpendicular to the axis YY.

次に、前記楔ナット１２の雌ねじ１２ｂと、前記雄型係止部材２３の雄ねじ２３ｂの係止山間の間隔（ねじピッチ）Ｐについて、図５により説明する。   Next, the interval (screw pitch) P between the locking threads of the female screw 12b of the wedge nut 12 and the male screw 23b of the male locking member 23 will be described with reference to FIG.

前記楔ナット１２の雌ねじ１２ｂと、前記雄型係止部材２３の雄ねじ２３ｂのねじピッチＰは所望に形成するもので、ＪＩＳに規定する細目ねじの呼び径に対するねじピッチとしてもよく、また、ＪＩＳに規定する細目ねじの呼び径に対するねじピッチよりも小さくしてもよい。   The thread pitch P of the female thread 12b of the wedge nut 12 and the male thread 23b of the male locking member 23 is formed as desired, and may be a thread pitch with respect to the nominal diameter of the fine thread defined in JIS. It may be smaller than the thread pitch with respect to the nominal diameter of the fine thread defined in.

例として、呼び径がＭ２４（ｍｍ）の場合には、ＪＩＳ Ｂ ０２０７のメートル細目ねじではねじピッチを２ｍｍ又は１．５ｍｍ又は１ｍｍに形成するが、本発明では、ねじピッチＰを０．３ｍｍ〜０．８ｍｍ、望ましくは０．５ｍｍに設定する。   For example, when the nominal diameter is M24 (mm), the thread pitch is 2 mm, 1.5 mm, or 1 mm in the JIS B 0207 metric fine thread, but in the present invention, the thread pitch P is 0.3 mm to Set to 0.8 mm, preferably 0.5 mm.

また、呼び径がＭ３０（ｍｍ）の場合もねじピッチＰを０．３ｍｍ〜０．８ｍｍ、望ましくは０．５ｍｍに設定する。   Further, when the nominal diameter is M30 (mm), the screw pitch P is set to 0.3 mm to 0.8 mm, preferably 0.5 mm.

次に本発明をシールドセグメントに適用した例に基づいて連結操作を説明する。
先ず、雌型連結部材１の軸芯Ｘ−Ｘと雄型連結部材２の雄型係止部材２３の軸芯Ｙ−Ｙとが略同軸上に位置した状態で、一方のシールドセグメント１９と他方のシールドセグメント３５を相対的に近接させ、雄型係止部材２３を雌型連結部材１の挿入部７の開口より挿入する。 Next, a connection operation will be described based on an example in which the present invention is applied to a shield segment.
First, in a state where the axis XX of the female connecting member 1 and the axis YY of the male locking member 23 of the male connecting member 2 are positioned substantially coaxially, one shield segment 19 and the other The male locking member 23 is inserted from the opening of the insertion portion 7 of the female connecting member 1.

雄型係止部材２３が、雌型連結部材１における挿入部７から挿入すると、雄型係止部材２３が各楔ナット１２を付勢手段１５の付勢力に抗して後退させて各楔ナット１２で形成されるねじ穴１２ｃを拡径し、各楔ナット１２の係止山を乗り越えつつ進入する。   When the male locking member 23 is inserted from the insertion portion 7 in the female connecting member 1, the male locking member 23 retreats each wedge nut 12 against the biasing force of the biasing means 15, and each wedge nut. The screw hole 12c formed at 12 is expanded in diameter, and the screw hole 12c is entered while overcoming the locking ridge of each wedge nut 12.

雌型連結部材１におけるケーシング３の先端面、すなわち、一方のシールドセグメント１９の接合面１９ａと、雄型連結部材２における連結体２２の先端面、すなわち他方のシールドセグメント３５の接合面３５ａが接して雄型連結部材２の挿入が停止されると、各楔ナット１２は、付勢手段１５の付勢力によって先端部４ａ側へ押戻されるとともにテーパ面によって各楔ナット１２で形成されるねじ穴１２ｃの径が縮径し、各楔ナット１２の雌ねじ１２ｂが雄型係止部材２３の雄ねじ２３ｂに噛合する。   The front end surface of the casing 3 in the female connection member 1, that is, the joint surface 19 a of one shield segment 19, and the front end surface of the connection body 22 in the male connection member 2, that is, the joint surface 35 a of the other shield segment 35 are in contact. When the insertion of the male connecting member 2 is stopped, each wedge nut 12 is pushed back to the tip portion 4a side by the urging force of the urging means 15, and the screw hole formed in each wedge nut 12 by the tapered surface The diameter of 12 c is reduced, and the female screw 12 b of each wedge nut 12 is engaged with the male screw 23 b of the male locking member 23.

本実施例１の雌型連結部材１と雄型連結部材２は、前記のような構造を有しているため、次のような作用、効果を奏する。   Since the female connecting member 1 and the male connecting member 2 of Example 1 have the above-described structure, the following operations and effects are achieved.

雌型連結部材１の軸芯Ｘ−Ｘと、雄型係止部材２３の軸芯とが相互に非同芯状態（目違い状態）となっている場合においても、雄型連結部材２は、変形できる部材からなる調整部材２１と空隙３３と空隙保持用パイプ３１と座部材３２の相互作用により、アンカーバー３０の抜け止め部３０ａを中心として。雄型係止部材２３の軸芯は、雄型連結部材２の軸芯Ｙ−Ｙと直交する方向に変位でき、雄型係止部材２３を、雌型連結部材１のねじ穴１２ｃ内に挿入することが出来る。   Even when the axial core XX of the female coupling member 1 and the axial core of the male locking member 23 are in a non-concentric state (misplaced state), the male coupling member 2 is Centering on the retaining portion 30a of the anchor bar 30 by the interaction of the adjusting member 21, which is a deformable member, the gap 33, the gap holding pipe 31, and the seat member 32. The axis of the male locking member 23 can be displaced in a direction perpendicular to the axis YY of the male coupling member 2, and the male locking member 23 is inserted into the screw hole 12 c of the female coupling member 1. I can do it.

雄型係止部材２３における基部２５の円筒部２５ａの一部が、連結体２２における中空部２２ａの円筒部２２ｃ内に嵌合していることにより、シールドセグメント１９、３５の連結時に、雄型係止部材２３に加わる剪断荷重に対する強度を上げることができる。そのため、雄型係止部材２３を細くすることができ、雄型連結部材２の製造コストを低減できる。   Since a part of the cylindrical portion 25a of the base portion 25 of the male locking member 23 is fitted into the cylindrical portion 22c of the hollow portion 22a of the connecting body 22, when the shield segments 19 and 35 are connected, the male type The strength against the shear load applied to the locking member 23 can be increased. Therefore, the male locking member 23 can be thinned, and the manufacturing cost of the male coupling member 2 can be reduced.

前記従来の雄型連結部材１０１においては、連結体１０９の外周面を六角形状に形成していたために、その周方向において大径部と小径部が生じ、その連結体１０９の外周に嵌合される円筒状の調整部材１０８の外径は、大径部に合わせて設定する必要があった。それに対し、本実施例では連結体２２の外周面を円形に形成したことにより、前記従来の調整部材１０８よりも調整部材２１の直径を小さくすることができ、雄型連結部材２の製造コストを低減できる。   In the conventional male connecting member 101, since the outer peripheral surface of the connecting body 109 is formed in a hexagonal shape, a large-diameter portion and a small-diameter portion are generated in the circumferential direction and are fitted to the outer periphery of the connecting body 109. It is necessary to set the outer diameter of the cylindrical adjustment member 108 according to the large diameter portion. On the other hand, in this embodiment, the outer peripheral surface of the connecting body 22 is formed in a circular shape, so that the diameter of the adjusting member 21 can be made smaller than that of the conventional adjusting member 108, and the manufacturing cost of the male connecting member 2 can be reduced. Can be reduced.

［実施例２］
前記実施例１においては、雄型係止部材２３の係止部２３ｂ及び雌型係止部材１２の係止部１２ｂを螺旋状の係止山及び係止溝で形成したが、例えば、図６に示すように、雄型係止部材３７の係止部３７ｂ及び雌型係止部材３８の係止部３８ｂを、軸心Ｘ−Ｘ、Ｙ−Ｙに対して直交する環状に形成された複数の係止山及び係止溝を、多数、その軸心方向に連続配置したものとしてもよい。 [Example 2]
In the first embodiment, the locking portion 23b of the male locking member 23 and the locking portion 12b of the female locking member 12 are formed by spiral locking peaks and locking grooves. For example, FIG. As shown in FIG. 4, the locking portion 37b of the male locking member 37 and the locking portion 38b of the female locking member 38 are formed in a plurality of rings that are orthogonal to the axial centers XX and YY. It is good also as what arrange | positioned many locking peaks and locking grooves of this to the axial direction continuously.

この環状の係止部３７ｂ、３８ｂとして、図６に示すような、軸心Ｘ−Ｘ、Ｙ−Ｙに対して直交する環状でのこぎり刃形状の係止山３７ｃ、３８ｃを、その軸心方向に多数連続配置して形成したものを用いることができる。   As the annular locking portions 37b and 38b, circular saw blade-shaped locking mountains 37c and 38c orthogonal to the axial centers XX and YY as shown in FIG. Those formed in a continuous arrangement can be used.

なお、雄型係止部材３７の係止部３７ｂ及び雌型係止部材３８の係止部３８ｂの係止山及び係止溝は、図６に示すような形状に限定されるものではなく、二等辺三角形状の係止山が連続してなる係止部や、直角三角形や、先部のテーパ角度が小さい不等辺三角形状の係止山が連続してなる係止部を用いることができる。   In addition, the locking crest and the locking groove of the locking part 37b of the male locking member 37 and the locking part 38b of the female locking member 38 are not limited to the shapes shown in FIG. It is possible to use a locking part in which isosceles triangle-shaped locking peaks are continuous, a right-angled triangle, or a locking part in which non-equal triangular locking peaks having a small taper angle are continuous. .

係止山間の間隔（ピッチ）Ｐの寸法は、前記実施例１に示したねじピッチの寸法に相当する値に設定する。   The dimension of the pitch (pitch) P between the locking peaks is set to a value corresponding to the dimension of the screw pitch shown in the first embodiment.

その他の部材については、前記実施例１と同様の構造を有するため、その説明を省略する。
また、本実施例２においても、前記実施例１と同様の作用、効果を奏する。 Since other members have the same structure as that of the first embodiment, the description thereof is omitted.
Also in the second embodiment, the same operations and effects as in the first embodiment are achieved.

［実施例３］
図７，８は、実施例３を示す。 [Example 3]
7 and 8 show the third embodiment.

前記実施例１，２においては、雄型連結部材２に、調整部材２１、アンカーバー３０、空間保持用パイプ３１等を設けることにより、雄型係止部材２３を、雄型連結部材２の軸芯Ｙ−Ｙと直交する方向に変位できるようにしたが、雄型連結部材２に、前記調整部材２１、アンカーバー３０、空間保持用パイプ３１等を設けず、雌型連結部材１に、前記雄型連結部材２における調整部材２１、アンカーバー３０、空間保持用パイプ３１等と同様の効果を奏する部材を設けることにより、アンカーバーの抜け止め部を中心として雌型連結部材をその軸芯Ｘ−Ｘと直交する方向に変位できるようにしてもよい。   In the first and second embodiments, the male connecting member 2 is provided with the adjusting member 21, the anchor bar 30, the space holding pipe 31, etc., so that the male locking member 23 is attached to the shaft of the male connecting member 2. Although it can be displaced in a direction perpendicular to the core Y-Y, the male connecting member 2 is not provided with the adjusting member 21, the anchor bar 30, the space holding pipe 31 and the like, and the female connecting member 1 By providing a member having the same effect as the adjusting member 21, anchor bar 30, space holding pipe 31, etc. in the male connecting member 2, the female connecting member is centered around the retaining portion of the anchor bar. You may enable it to displace in the direction orthogonal to -X.

図７，８に示すように、雌型連結部材４１のケーシング３の外周には、変形できる部材、例えば、発泡スチロール、ゴム等の弾性材、樹脂、ダンボールで形成された円筒状の調整部材４２を設け、該調整部材４２の後側には後方に突出する係止部４２ａが設けられている。   As shown in FIGS. 7 and 8, on the outer periphery of the casing 3 of the female connecting member 41, a deformable member, for example, a cylindrical adjusting member 42 formed of an elastic material such as polystyrene foam, rubber, resin, or cardboard is provided. Provided on the rear side of the adjustment member 42 is a locking portion 42a that protrudes rearward.

また、アンカーバー１８の外周には、ゴム等の弾性材もしくは金属からなる空間保持用のパイプ４３を設ける。空間保持用のパイプ４３の前側端部は、調整部材４２の係止部４２ａに係止し、後側端部は、アンカーバー１８の抜け止め部１８ａに設けられたゴム等の弾性材からなる座部材４４に係止している。アンカーバー１８と空間保持用のパイプ４３との間には空隙４５が設けられている。   A space holding pipe 43 made of an elastic material such as rubber or metal is provided on the outer periphery of the anchor bar 18. The front end portion of the space holding pipe 43 is engaged with the engaging portion 42a of the adjusting member 42, and the rear end portion is made of an elastic material such as rubber provided on the retaining portion 18a of the anchor bar 18. The seat member 44 is locked. A gap 45 is provided between the anchor bar 18 and the space holding pipe 43.

なお、空間保持用のパイプ４３と空隙４５を設けることなく、アンカーバー１８における空間保持用のパイプ４３に相当する部分の外周全体にゴム等の弾性材により形成してもよい。例えば、調整部材４２を奥側まで延在させて形成しても良い。   Instead of providing the space holding pipe 43 and the gap 45, the anchor bar 18 may be formed of an elastic material such as rubber on the entire outer periphery of the portion corresponding to the space holding pipe 43. For example, the adjustment member 42 may be formed to extend to the back side.

前記調整部材４２、アンカーバー１８、空間保持用パイプ４３は、一方の連結部材、例えば、シールドセグメント１９に、ケーシング３の前端面がシールドセグメント１９の接合面１９ａと面一になるように埋設して固設されるもので、その前記調整部材４２、空隙保持用パイプ４３、抜け止め部１８ａの外部にはコンクリート１９ｂが打設されている。   The adjustment member 42, the anchor bar 18, and the space holding pipe 43 are embedded in one connecting member, for example, the shield segment 19, so that the front end surface of the casing 3 is flush with the joint surface 19a of the shield segment 19. Concrete 19b is placed outside the adjusting member 42, the gap holding pipe 43, and the retaining portion 18a.

一方の連結部材１９に設けられた雌型連結部材４１は、変形できる部材からなる調整部材４２と空隙４５と空隙保持用パイプ４３と座部材４４の相互作用により、アンカーバー１８の抜け止め部１８ａを中心として、その軸芯Ｘ−Ｘと直交する方向に変位できるようになっている。   The female connecting member 41 provided on one connecting member 19 is configured such that the retaining member 18a of the anchor bar 18 is caused by the interaction of the adjusting member 42 made of a deformable member, the gap 45, the gap holding pipe 43 and the seat member 44. , And can be displaced in a direction perpendicular to the axis XX.

その他の部材については、前記実施例１，２と同様の構造を有するため、その説明を省略し、同様の部材については前記実施例１、２と同様の符号を付す。
また、本実施例３においても、前記実施例１，２と同様の作用、効果を奏する。 Since the other members have the same structure as in the first and second embodiments, the description thereof is omitted, and the same members as those in the first and second embodiments are denoted by the same reference numerals.
In the third embodiment, the same operations and effects as the first and second embodiments are achieved.

［実施例４］
前記実施例１乃至３においては、雌型連結部材又は雄型連結部材のいずれか一方のみをその軸芯Ｘ−Ｘ又はＹ−Ｙと直交する方向に変位できるようにしたが、雌型連結部材及び雄型連結部材の双方をその軸芯Ｘ−Ｘ及びＹ−Ｙと直交する方向に変位できるように、雄型連結部材２に、調整部材２１、アンカーバー３０、空間保持用パイプ３１等を設け、かつ、雌型連結部材１、４１に調整部材４２、空隙４５、空隙保持用パイプ４３等を設けても良い。 [Example 4]
In the first to third embodiments, only one of the female connecting member and the male connecting member can be displaced in the direction perpendicular to the axial center XX or YY. The male connecting member 2 is provided with an adjusting member 21, an anchor bar 30, a space holding pipe 31 and the like so that both the male connecting member and the male connecting member can be displaced in a direction perpendicular to the axial centers XX and YY. In addition, the female connecting members 1 and 41 may be provided with the adjusting member 42, the gap 45, the gap holding pipe 43, and the like.

その他の部材については、前記実施例１乃至３と同様の構造を有するため、その説明を省略する。
また、本実施例４においても、前記実施例１乃至３と同様の作用、効果を奏する。 Since the other members have the same structure as in the first to third embodiments, description thereof is omitted.
Also in the fourth embodiment, the same operations and effects as the first to third embodiments are achieved.

［実施例５］
前記実施例１乃至４においては、雌型係止部材２３の基部２５を円筒部２５ａのみで構成したが、基部２５における前端面２２ｄより前方の少なくとも一部を、その先端から奥部に向かうほど拡径するテーパ状の拡径部を形成しても良い。 [Example 5]
In the first to fourth embodiments, the base portion 25 of the female locking member 23 is configured only by the cylindrical portion 25a. However, at least a part of the base portion 25 ahead of the front end face 22d is directed from the tip to the back portion. You may form the taper-shaped enlarged diameter part which expands in diameter.

前記拡径部の最外径は、前記挿入部７の内径よりも小さく設定され、テーパ面の角度は任意に設定する。なお、拡径部は、基部２５の少なくとも一部に形成されていれば良い。また、拡径部は、奥部に向かうほど拡径していれば、曲面状に形成しても良い。   The outermost diameter of the enlarged diameter part is set smaller than the inner diameter of the insertion part 7, and the angle of the tapered surface is arbitrarily set. In addition, the enlarged diameter part should just be formed in at least one part of the base 25. FIG. Further, the diameter-enlarged portion may be formed in a curved shape as long as the diameter is increased toward the inner portion.

その他の部材については、前記実施例１乃至４と同様の構造を有するため、その説明を省略する。   The other members have the same structure as in the first to fourth embodiments, and thus the description thereof is omitted.

また、本実施例５においても、前記実施例１乃至４と同様の作用、効果を奏する。
更に、本実施例５では、目違い状態により雄型係止部材２３が傾いた状態で、両連結部材１，２を連結する際に、前記雄型係止部材２３の基部２５に設けた拡径部により、雄型係止部材２３の軸が、徐々に雌型連結部材１の軸心Ｘ−Ｘ方向に変位するため、軸方向における一つの楔ナット１２と他の楔ナット１２の位置が、大きく異なることを防止できる。 Also in the fifth embodiment, the same operations and effects as the first to fourth embodiments are achieved.
Furthermore, in the fifth embodiment, when the male locking member 23 is tilted due to a misplaced state and the two connecting members 1 and 2 are connected, the expansion provided in the base 25 of the male locking member 23 is performed. The shaft of the male locking member 23 is gradually displaced in the axis XX direction of the female connecting member 1 by the diameter portion, so that the position of one wedge nut 12 and the other wedge nut 12 in the axial direction is , Can prevent a large difference.

これにより、連結後において、シールドセグメント１９、３５間にこれらを離間する方向に大きな外力が作用したとしても、シールドセグメント１９、３５間の目開きを最小限に抑えることが出来、シールドセグメント１９，３５間からの漏水を防止できる。また、目開きを小さくすることができるため、シールドセグメント１９、３５間に設けるシール材を小さくすることができ、製造コストを低減できる。   As a result, even if a large external force acts in the direction of separating the shield segments 19 and 35 between the shield segments 19 and 35 after connection, the opening between the shield segments 19 and 35 can be minimized. Water leakage from between 35 can be prevented. Moreover, since the opening can be reduced, the sealing material provided between the shield segments 19 and 35 can be reduced, and the manufacturing cost can be reduced.

［その他の実施例］
前記実施例１乃至５においては、雌型連結部材１，４１におけるテーパ穴５内に摺動案内突条１１を設けたが、この摺動案内突条１１を設けなくてもよい。 [Other Examples]
In the first to fifth embodiments, the sliding guide protrusion 11 is provided in the tapered hole 5 of the female connecting members 1 and 41. However, the sliding guide protrusion 11 may not be provided.

また、前記実施例１乃至５においては、楔ナット１２を複数個設けたが、１個としてもよい。   In the first to fifth embodiments, a plurality of wedge nuts 12 are provided, but a single wedge nut 12 may be provided.

また、前記実施例１乃至５においては、雌型連結部材１、４１を、その先端部４ａ側の面３ｃを、シールドセグメント１９の接合面１９ａと面一になるように埋設し、また、雄型連結部材２の連結体２２の前端面２２ｄがシールドセグメント３５の接合面３５ａと面一となるように埋設したが、先端部４ａ側の面３ｃと前端面２２ｄのいずれか一方を、接合面１９ａ、３５ａより突出させ、他方を前方が開口するように埋没させてもよい。   In the first to fifth embodiments, the female connecting members 1 and 41 are embedded so that the surface 3c on the tip end 4a side is flush with the joint surface 19a of the shield segment 19, and Although the front end surface 22d of the coupling body 22 of the mold coupling member 2 is embedded so as to be flush with the bonding surface 35a of the shield segment 35, either the surface 3c on the tip end 4a side or the front end surface 22d is bonded to the bonding surface. You may make it protrude from 19a and 35a, and you may embed | buy the other so that the front may open.

また、前記実施例１乃至５においては、連結体２２の外周面を円形に形成したが、連結体２２の外周面の形状は、六角形等の多角形状に形成しても良い。   Moreover, in the said Example 1 thru | or 5, although the outer peripheral surface of the coupling body 22 was formed circularly, you may form the outer peripheral surface of the coupling body 22 in polygonal shapes, such as a hexagon.

以上、本発明の具体例を詳細に説明したが、これらは例示にすぎず、特許請求の範囲を限定するものではない。特許請求の範囲に記載の技術には、以上に例示した具体例を様々に変形、変更したものが含まれる。   Specific examples of the present invention have been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

１、４１ 雌型連結部材
２ 雄型連結部材
３ ケーシング
４ 収納室
５ テーパ穴
１２ 雌型係止部材
１２ｂ雌型係止部材の係止部
１５ 付勢手段
１９、３５ シールドセグメント
２２ 連結体
２２ａ 中空部
２２ｂ 雄ねじ
２２ｃ 円筒部
２３ 雄型係止部材
２３ｂ 雄型係止部材の係止部
２５ 基部 DESCRIPTION OF SYMBOLS 1, 41 Female type | mold connection member 2 Male type | mold connection member 3 Casing 4 Storage chamber 5 Tapered hole 12 Female type locking member 12b Locking part of female type locking member 15 Energizing means 19, 35 Shield segment 22 Linking body 22a Hollow Portion 22b Male thread 22c Cylindrical portion 23 Male locking member 23b Locking portion of male locking member 25 Base

Claims (7)

ケーシング内に先端部が開口する収納室を設け、該収納室内に、先方が縮径するテーパ面を有するテーパ穴を形成し、該テーパ穴内に、周方向に分割された楔状の雌型係止部材を軸方向に摺動可能に配置するとともに、該雌型係止部材の内面に複数の係止山からなる係止部を刻設し、前記雌型係止部材を付勢手段で先方へ付勢した雌型連結部材と、
複数の係止山からなる係止部を刻設した雄型係止部材を先部に設けた雄型連結部材とで構成され、
前記雄型係止部材を、前記雌型係止部材により構成される係止穴に挿入することにより該係止穴が拡径し、その後、付勢手段により前記係止穴が縮径し前記雌型係止部材の係止部と、前記雄型係止部材の係止部とが噛合するようにした連結具であって、
前記雄型連結部材は、先部が開口する中空部を有する連結体を備え、該連結体の中空部内壁には雌ねじが刻設されるとともに、この雌ねじの先部には無ねじ状に形成した円筒部を設け、
前記雄型係止部材の基部の少なくとも一部には、前記連結体の円筒部内に嵌合する円筒部を設け、前記基部より奥部には、前記連結体の雌ねじと螺合する雄ねじを刻設したことを特徴とする連結具。 A housing chamber having an opening at the tip is provided in the casing, a tapered hole having a tapered surface whose front end is reduced in diameter is formed in the housing chamber, and a wedge-shaped female latch that is divided in the circumferential direction in the tapered hole The member is slidably disposed in the axial direction, and a locking portion composed of a plurality of locking ridges is formed on the inner surface of the female locking member, and the female locking member is moved forward by the biasing means. An energized female connecting member;
It is composed of a male locking member provided with a male locking member in which a locking portion made of a plurality of locking mountains is engraved,
By inserting the male locking member into a locking hole constituted by the female locking member, the diameter of the locking hole is expanded, and then the locking hole is reduced in diameter by an urging means. A coupling tool in which a locking portion of a female locking member and a locking portion of the male locking member are engaged with each other,
The male connecting member includes a connecting body having a hollow portion whose front end is open, and a female screw is engraved on the inner wall of the hollow portion of the connecting body. Provided a cylindrical portion,
At least a part of the base portion of the male locking member is provided with a cylindrical portion that fits into the cylindrical portion of the coupling body, and a male screw that engages with the female thread of the coupling body is engraved behind the base portion. A connecting tool characterized by being provided. 前記雌型係止部材の係止部を雌ねじで形成し、雄型係止部材の係止部を前記雌ねじに係合する雄ねじで形成し、前記雌ねじと雄ねじにおける呼び径に対するピッチを、ＪＩＳに規定する細目ねじの呼び径に対するねじピッチよりも小さく設定したことを特徴とする請求項１記載の連結具。   The locking portion of the female locking member is formed with a female screw, the locking portion of the male locking member is formed with a male screw that engages with the female screw, and the pitch with respect to the nominal diameter of the female screw and the male screw is determined according to JIS. 2. The connector according to claim 1, wherein the connecting tool is set smaller than a thread pitch with respect to a nominal diameter of the fine thread. 前記雌型係止部材の係止部を、周方向に環状に形成された平行な係止山と平行な係止溝で形成し、
前記雄型係止部材の係止部を、前記係止山と係止溝に嵌合する係止溝と係止山で形成し、
前記係止山における呼び径に対するピッチを、ＪＩＳに規定する細目ねじの呼び径に対するねじピッチよりも小さく設定したことを特徴とする請求項１記載の連結具。 The locking portion of the female locking member is formed by a locking groove parallel to a parallel locking mountain formed annularly in the circumferential direction,
The locking portion of the male locking member is formed by a locking groove and a locking mountain that fit into the locking mountain and the locking groove,
The coupling tool according to claim 1, wherein a pitch with respect to a nominal diameter of the locking thread is set to be smaller than a thread pitch with respect to a nominal diameter of a fine screw defined in JIS. 前記連結体の外周面を円形に形成し、該連結体の外周に変形できる部材で形成した調整部材を設けたことを特徴とする請求項１乃至３記載の連結具。   The coupling tool according to claim 1, wherein an outer peripheral surface of the coupling body is formed in a circular shape, and an adjustment member formed of a deformable member is provided on the outer circumference of the coupling body. 前記雌型連結部材の前記雌型係止部材と前記付勢手段との間に、ワッシャを複数枚設けたことを特徴とする請求項１乃至４記載の連結具。   The coupling tool according to claim 1, wherein a plurality of washers are provided between the female locking member of the female coupling member and the biasing means. 前記請求項１乃至５の何れか１項に記載の連結具を用い、
前記雌型連結部材を、連結すべき一方のコンクリート部材に固設し、前記雄型連結部材を連結すべき他方のコンクリート部材に固設したことを特徴とするコンクリート部材の連結装置。 Using the connector according to any one of claims 1 to 5,
A connecting device for a concrete member, wherein the female connecting member is fixed to one concrete member to be connected, and the male connecting member is fixed to the other concrete member to be connected. 前記コンクリート部材が、シールドセグメントであることを特徴とする請求項６記載のコンクリート部材の連結装置。   The concrete member connecting device according to claim 6, wherein the concrete member is a shield segment.

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