JP2024003274A

JP2024003274A - Coupling apparatus of concrete members

Info

Publication number: JP2024003274A
Application number: JP2023175860A
Authority: JP
Inventors: 孝臣森; Takaomi Mori; 晃椙山; Akira Sugiyama
Original assignee: Mitsuchi Corp; Fujimi Koken Co Ltd
Current assignee: Mitsuchi Corp; Fujimi Koken Co Ltd
Priority date: 2020-02-19
Filing date: 2023-10-11
Publication date: 2024-01-12
Also published as: JP2021130951A; JP7417931B2

Abstract

PROBLEM TO BE SOLVED: To provide a coupling apparatus of concrete members with a reduced manufacturing cost of a mail locking member while ensuring a strength against a shear load.

SOLUTION: A coupling apparatus of concrete members includes a female coupling member 1 including a female locking member 12 and a mail coupling member 2 including a mail locking member 23. By inserting the male locking member 23 into a locking hole 12c, the locking hole 12c expands in diameter and then the locking hole 12c contracts in diameter, so that a locking portion 12b of the female locking member and a locking portion 23c of the male locking member are engaged. The male coupling member 2 includes a proximal portion 25. An outer diameter of the proximal portion 25 is formed to be larger than outer diameters of the locking portion 23b and a male screw 23a, and an outer diameter of an end portion on the locking portion side of the proximal portion 25 is tapered toward the locking portion side, and an outer diameter of an end portion on the male screw side of the proximal portion 25 is tapered toward the locking portion side. A far side of the proximal portion 25 is located deeper side than one of a concrete member side face 35a in the other concrete member 35, and an outer circumference of a coupling body 22 is provided with a first adjustment member 21 formed by a deformable member.

SELECTED DRAWING: Figure 1

Description

本発明は、コンクリート部材の連結装置に関する。 The present invention relates to a device for connecting concrete members.

従来、コンクリート部材相互を連結するコンクリート部材の連結装置として、図１６に示すような、雌型連結部材１００と雄型連結部材１０１を用いたものが知られている。 Conventionally, as a concrete member connecting device for connecting concrete members to each other, a device using a female type connecting member 100 and a male type connecting member 101 as shown in Fig. 16 is known.

この雌型連結部材１００は、内部の軸方向にテーパ穴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を先端側に押圧する圧縮バネ１０７を有する。 This female connecting member 100 has a casing 103 having a tapered hole 102 formed in the axial direction inside and a plurality of sliding guide protrusions divided in the circumferential direction formed on the inner surface of the tapered hole 102 along the axial direction. It has a female locking member (wedge nut) 106 whose outer surface has a tapered surface 104 along the tapered hole 102 and a female thread 105 formed on its inner surface, and a compression spring 107 which presses the wedge nut 106 toward the tip side. .

また、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、連結体１０９の先部に雄型係止部材１１０を設け、雄型係止部材１１０の外周部には、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。 In addition, the male connecting member 101 has a connecting body 109 provided inside a cylindrical adjusting member 108 made of a deformable member such as styrofoam, an elastic material such as rubber, resin, cardboard, etc. A male locking member 110 is provided on the outer circumference of the male locking member 110, and a male thread 111 that engages with the female thread 105 of the female connecting member 100 is carved.

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、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（図示しない）に設けられたゴム等の弾性材からなる座部材（図示しない）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 of the connecting body 109, a retaining part is provided at the rear end of the anchor bar 112, and the outer periphery of the anchor bar 112 is made of an elastic material such as rubber or metal. A pipe 113 for maintaining space is provided. The front end of the space-maintaining pipe 113 is locked to the rear side of the adjustment member 108, and the rear end is connected to an elastic material such as rubber provided at the retaining part (not shown) of the anchor bar 112. It is locked to a seat member (not shown). A gap 114 is provided between the anchor bar 112 and the space-maintaining 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雌型連結部材１００に雄型係止部材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。 When connecting with this connector, the male locking member 110 is inserted into the female connecting member 100 without rotating the female connecting member 100, so that the female thread 105 of the divided wedge nut 106 is connected to the male When engaged with the male thread 111 of the mold locking member 110, the wedge nut 106 is pushed toward the larger diameter side against the compression spring 107, and the inner diameter of the female threaded hole formed by the plurality of wedge nuts 106 is expanded. The male locking member 110 can be inserted into the female connecting member 100 to a predetermined position, and when the insertion is completed, the female thread 105 of the wedge nut 106 is inserted into the male thread 111 of the male locking member 110 due to the biasing force of the compression spring 107. They mesh, and the female connecting member 100 and the male connecting member 101 are connected.

上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、連結具の雌型連結部材１００を一方のシールドセグメントに設け、雄型連結部材１０１を他方のシールドセグメントに設ける。 There is a desire to connect concrete shield segments used in tunnels, for example, using a connector configured as described above. In this case, the female coupling member 100 of the coupling is provided on one shield segment and the male coupling member 101 is provided on the other shield segment.

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１１５が形成され、中空部の内壁全体に亘って雌ねじが刻設されている。この雌ねじ１１６に雄型係止部材１１０の奥側に刻設した雄ねじ１１６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 115 is formed in the connecting body 109 of the male connecting member 101 and is open at both ends in the axial direction, and a female thread is cut across the entire inner wall of the hollow portion. The male locking member 110 is attached to the connecting body 109 by screwing into this female screw 116 a male screw 116 carved on the back side of the male locking member 110.

そのため、両シールドセグメント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。 Therefore, in order to ensure the strength against the shearing load applied to the male locking member 110 when both shield segments are connected, the male locking member 110 needs to have a diameter of a certain value or more, which poses a manufacturing cost problem. was there.

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。 SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a concrete member connecting device that reduces the manufacturing cost of a male locking member while ensuring strength against shear loads.

前記課題を解決するために、請求項１記載の発明は、雌型連結部材と雄型連結部材を有し、
前記雌型連結部材内に先端部が開口する収納室を設け、該収納室内に、内面側に連続する係止山からなる係止部を刻設した雌型係止部材を設けるとともに、
前記雄型連結部材の先部に、連続する係止山からなる係止部を刻設した雄型係止部材を設け、
前記雌型係止部材の内側に係止穴を形成し、
前記雄型係止部材を前記係止穴に挿入することにより、係止穴が拡径した後に該係止穴が縮径して、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、
前記雌型連結部材を、一方のコンクリート部材に固設し、前記雄型連結部材を他方のコンクリート部材に固設し、
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、
前記係止部より奥側に基部を設け、該基部より奥部には、前記連結体の雌ねじと螺合する雄ねじを刻設し、
前記基部の外径は、前記係止部及び雄ねじの外径より大きく形成し、
前記基部の係止部側端部の外径を、係止部側に向かう程細くし、前記基部の雄ねじ側端部の外径を、係止部側に向かう程細くし、
前記基部の外面とその外側に位置する部材との間に隙間を形成し、
前記基部の奥側部は、前記他方のコンクリート部材における一方のコンクリート部材側面より奥側に位置し、
前記連結体の外周に、変形できる部材で形成した第１調整部材を設けたことを特徴とするものである。 In order to solve the problem, the invention according to claim 1 has a female type connecting member and a male type connecting member,
A storage chamber with an open tip is provided in the female connecting member, and a female locking member is provided in the storage chamber with a locking portion formed of a continuous locking crest on the inner surface side;
A male locking member having a locking portion formed of a continuous locking crest is provided at the tip of the male connecting member,
forming a locking hole inside the female locking member;
By inserting the male type locking member into the locking hole, the locking hole expands in diameter and then contracts in diameter, so that the locking portion of the female type locking member and the male type Ensure that the locking part of the locking member meshes with the locking part,
The female connecting member is fixed to one concrete member, the male connecting member is fixed to the other concrete member,
The male connecting member includes a connecting body having a hollow portion with an open tip, and a female thread is carved in the inner wall of the hollow portion of the connecting body,
A base is provided on the back side of the locking part, and a male screw is carved on the back side of the base to be screwed with the female screw of the connecting body,
The outer diameter of the base is larger than the outer diameter of the locking part and the male thread,
The outer diameter of the end of the base on the locking part side is made thinner as it goes toward the locking part, and the outer diameter of the male thread side end of the base is made thinner as it goes toward the locking part,
forming a gap between the outer surface of the base and a member located outside thereof;
The deep side part of the base is located further back than the side surface of one concrete member in the other concrete member,
The present invention is characterized in that a first adjusting member made of a deformable member is provided on the outer periphery of the connecting body.

請求項２記載の発明は、請求項１記載の発明において、前記収納室内に、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、
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ことを特徴とするものである。 The invention according to claim 2 is the invention according to claim 1, in which a tapered hole having a tapered surface whose diameter decreases at the tip is formed in the storage chamber, and a wedge-shaped female portion divided in the circumferential direction is provided in the tapered hole. The mold locking member is arranged to be slidable in the axial direction, and a locking portion consisting of a plurality of locking ridges is carved on the inner surface of the female mold locking member, and the female mold locking member is biased by a biasing means. to urge the other side,
By inserting the male locking member into the locking hole formed by the female locking member, the locking hole expands in diameter, and then the biasing means causes the locking hole to contract in diameter and The locking portion of the female locking member and the locking portion of the male locking member are configured to mesh with each other.

請求項３記載の発明は、請求項１又は２記載の発明において、前記連結体の先端側端を、前記他方のコンクリート部材における一方のコンクリート部材側面より奥側に位置させ、
前記連結体の先端側端より先端側に前記基部を設け、
前記基部の奥側部の周囲に空間を形成したことを特徴とするものである。 The invention according to claim 3 is the invention according to claim 1 or 2, wherein the front end of the connecting body is located further back than the side surface of one concrete member in the other concrete member,
The base portion is provided on the distal side of the distal end of the connecting body,
The device is characterized in that a space is formed around the inner side of the base.

請求項４記載の発明は、請求項１乃至３記載の発明において、前記第１調整部材における雄型係止部材の軸芯を中心とする径方向の外側に、金属で形成し、かつ、前記連結体における雄型係止部材の軸芯を中心とする径方向への移動を抑制する連結体移動抑制部材を設けたことを特徴とするものである。 The invention according to claim 4 is the invention according to claims 1 to 3, in which the first adjustment member is formed of metal on the outside in the radial direction about the axis of the male locking member, and The present invention is characterized in that a connecting body movement suppressing member is provided that suppresses movement of the male locking member in the connecting body in a radial direction about the axis.

請求項５記載の発明は、請求項４記載の発明において、前記連結体移動抑制部材における雄型係止部材の軸芯を中心とする径方向の外側に、変形できる部材で形成した第２調整部材を設けたことを特徴とするものである。 The invention according to claim 5 is the invention according to claim 4, in which the second adjustment member is formed of a deformable member on the outside in the radial direction about the axis of the male locking member in the connecting body movement suppressing member. It is characterized in that a member is provided.

請求項６記載の発明は、請求項３記載の発明において、前記基部の奥側部における雄型係止部材の軸芯を中心とする径方向の外側に、金属で形成し、かつ、前記基部における雄型係止部材の軸芯を中心とする径方向への移動を抑制する基部移動抑制部材を設け、
該基部移動抑制部材と前記基部との間に前記空間を形成し、
前記基部移動抑制部材を他方のコンクリート部材に埋設したことを特徴とするものである。 The invention according to claim 6 is the invention according to claim 3, in which the male locking member is formed of metal on the outer side in the radial direction about the axis of the male locking member at the back side of the base, and a base movement suppressing member for suppressing movement in the radial direction about the axis of the male locking member;
forming the space between the base movement suppressing member and the base;
The base movement suppressing member is embedded in the other concrete member.

請求項７記載の発明は、請求項６記載の発明において、前記基部移動抑制部材における雄型係止部材の軸芯を中心とする径方向の外側に、変形できる部材で形成した第２調整部材を設けたことを特徴とするものである。 The invention according to claim 7 is the invention according to claim 6, wherein the second adjustment member is formed of a member that can be deformed radially outward about the axis of the male locking member in the base movement suppressing member. It is characterized by having the following.

請求項８記載の発明は、請求項６又は７記載の発明において、前記連結体の外周に変形できる部材で形成した第１調整部材を設け、該第１調整部材における雄型係止部材の軸芯を中心とする径方向の外側に金属で形成し、かつ、前記連結体における雄型係止部材の軸芯を中心とする径方向への移動を抑制する連結体移動抑制部材を設け、
該連結体移動抑制部材と前記基部移動抑制部材を一体に形成したことを特徴とするものである。 The invention according to claim 8 is the invention according to claim 6 or 7, wherein a first adjustment member formed of a deformable member is provided on the outer periphery of the connecting body, and the shaft of the male locking member in the first adjustment member is provided. a connecting body movement suppressing member formed of metal on the outside in the radial direction centering on the core and suppressing movement of the male locking member in the connecting body in the radial direction centering on the axis;
The connecting body movement suppressing member and the base movement suppressing member are integrally formed.

本発明は、基部の外径を、係止部及び雄ねじの外径より大きく形成し、この基部の奥側部を、他方のコンクリート部材における一方のコンクリート部材側面より、奥側に位置するようにしたことにより、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。 In the present invention, the outer diameter of the base is formed to be larger than the outer diameter of the locking part and the male screw, and the back part of the base is located further back than the side surface of one concrete member in the other concrete member. By doing so, it is possible to increase the strength against the shearing load applied to the male locking member. Therefore, the male locking member can be made thinner, and the manufacturing cost of the male connecting member can be reduced.

本発明の実施例１におけるコンクリート部材の連結装置を示し、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。FIG. 1 is a partial cross-sectional view showing a connecting state of a female connecting member and a male connecting member, with a half side in cross section, showing the concrete member connecting device in Example 1 of the present invention. 本発明の実施例１に用いる雌型連結部材の半面を断面とした部分断面図。FIG. 2 is a partial cross-sectional view of a female connecting member used in Example 1 of the present invention, with half of the female connecting member in cross section. 本発明の実施例１に用いる雄型連結部材の半面を断面とした部分断面図。FIG. 2 is a partial cross-sectional view of a male connecting member used in Example 1 of the present invention, with half of the surface in cross section. 雌型連結部材と雄型連結部材の目違い状態での連結方法を説明するための部分断面図。FIG. 6 is a partial cross-sectional view for explaining a method of connecting the female connecting member and the male connecting member in a mismatched state. 図４の状態から雌型連結部材と雄型連結部材を連結させた状態の部分断面図。FIG. 5 is a partial cross-sectional view of a state in which the female connecting member and the male connecting member are connected from the state shown in FIG. 4; 本発明の実施例４に用いる雄型連結部材の一例の半面を断面とした部分断面図。FIG. 6 is a partial cross-sectional view of an example of a male connecting member used in Example 4 of the present invention, with half of the surface in cross section. 本発明の実施例４に用いる雄型連結部材の他例の半面を断面とした部分断面図。FIG. 7 is a partial cross-sectional view of another example of the male connecting member used in Example 4 of the present invention, with half of the surface in cross section. 本発明の実施例５に用いる雄型連結部材の一例の半面を断面とした部分断面図。FIG. 7 is a partial cross-sectional view of an example of a male connecting member used in Example 5 of the present invention, with half of the surface in cross section. 本発明の実施例５に用いる雄型連結部材の他例を示す断面図。FIG. 7 is a sectional view showing another example of the male connecting member used in Example 5 of the present invention. 本発明の実施例５に用いる雄型連結部材の他例を示す断面図。FIG. 7 is a sectional view showing another example of the male connecting member used in Example 5 of the present invention. 本発明の実施例６に用いる雄型連結部材の一例の半面を断面とした部分断面図。FIG. 6 is a partial cross-sectional view of an example of a male connecting member used in Example 6 of the present invention, with half of the surface in cross section. 本発明の実施例６に用いる雄型連結部材の他例を示す断面図。FIG. 7 is a sectional view showing another example of the male connecting member used in Example 6 of the present invention. 本発明の実施例６に用いる雄型連結部材の他例を示す断面図。FIG. 7 is a sectional view showing another example of the male connecting member used in Example 6 of the present invention. 本発明の実施例７に用いる雄型連結部材の一例の半面を断面とした部分断面図。FIG. 7 is a partial cross-sectional view of an example of a male connecting member used in Example 7 of the present invention, with half of the surface in cross section. 本発明の実施例８に用いる雄型連結部材の一例の半面を断面とした部分断面図。FIG. 7 is a partial cross-sectional view of an example of a male connecting member used in Example 8 of the present invention, with half of the surface in cross section. 従来の雄形連結部材と雌型連結部材の部分側断面図。FIG. 3 is a partial side sectional view of a conventional male connecting member and a female connecting member.

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。 DESCRIPTION OF THE PREFERRED EMBODIMENTS A mode for carrying out the present invention will be described based on examples 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。 [Example 1]
1 to 5 show a first embodiment of the present invention.

図１は、本発明の実施例１のコンクリート部材の連結装置１０を示し、コンクリート部材の連結装置１０は、雌型連結部材１と雄型連結部材２を有する。図２は、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３は、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。以下において、雌型連結部材１における図２の左側を先部Ａ、右側を奥側Ｂ、雄型連結部材２における図３の右側を先部Ｃ、左側を奥側Ｄとして説明する。 FIG. 1 shows a concrete member connecting device 10 according to a first embodiment of the present invention, and the concrete member connecting device 10 includes a female connecting member 1 and a male connecting member 2. As shown in FIG. FIG. 2 shows a partial cross-sectional view of one half of the female connecting member 1, and FIG. 3 shows a partial cross-sectional view of one half of the male connecting member 2. In the following, the left side of the female connecting member 1 in FIG. 2 will be described as a tip A, the right side as a back side B, the right side of the male connecting member 2 in FIG. 3 as a tip C, and the left side as a back side D.

雌型連結部材１は、ケーシング３を有し、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。収納室４の先部Ａは、その内周面を先部Ａ（先端部４ａ側）から奥側（後側）Ｂ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 into a cylindrical shape, for example, and a storage chamber 4 is formed inside the casing 3. The tip A of the storage chamber 4 is formed into a conical tapered hole 5 whose inner peripheral surface is a tapered surface whose inner diameter gradually increases from the tip A (tip 4a side) to the back side (rear side) B. The intermediate portion of the storage chamber 4 is formed as a biasing means storage portion 6. A female thread 3a is formed on the inner peripheral surface of the rear portion of the casing 3.

収納室４の先部には円筒状の挿入部７が開口形成されている。 A cylindrical insertion portion 7 is formed as an opening at the tip of the storage chamber 4 .

テーパ穴５内には、軸芯Ｘ－Ｘ方向に沿った摺動案内突条（図示しない）が、周方向に分割して複数形成されている。また、テーパ穴５内には、周方向に複数に分割してなる楔状の雌型係止部材１２が、摺動案内突条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。なお、摺動案内突条を設けなくてもよい。 Inside the tapered hole 5, a plurality of sliding guide protrusions (not shown) are formed along the axis XX direction and divided in the circumferential direction. Further, in the tapered hole 5, a wedge-shaped female locking member 12 which is divided into a plurality of parts in the circumferential direction is slidable in the axis XX direction of the casing 3 between the sliding guide protrusions. It is arranged. Although the number of female locking members 12 is three in this embodiment, it can be set arbitrarily. Note that, hereinafter, the female locking member 12 will also be referred to as a wedge nut 12. Note that the sliding guide protrusion may not be provided.

楔ナット１２の数を、本実施例においては３個としたが、１個でも複数でもよく任意に
設定することができる。また、隣接する楔ナット１２同士の一部を相互に結合して一体に形成するとともに、楔ナット１２同士の一部を相互に結合した状態で前後方向に移動でき、先部Ａ側へ移動すると後述する係止穴１２ｃが縮径し、奥側Ｂに移動すると係止穴１２ｃが拡径するようにしてもよい。また、雌型連結部材１の製造時においては、隣接する楔ナット１２同士の一部を相互に結合して一体に形成し、係止穴１２ｃ内に後述する雄型係止部材２３が挿入された際に、楔ナット１２が複数に分離するようにしてもよい。 Although the number of wedge nuts 12 is three in this embodiment, it may be one or more, and can be arbitrarily set. In addition, parts of adjacent wedge nuts 12 are joined together to form an integral body, and parts of the wedge nuts 12 can be moved in the front and back direction while being joined to each other, and when moved toward the tip A side, The diameter of the locking hole 12c, which will be described later, may be reduced, and when moving toward the back side B, the locking hole 12c may be expanded in diameter. Further, when manufacturing the female connecting member 1, adjacent wedge nuts 12 are partially connected to each other to form an integral body, and a male locking member 23, which will be described later, is inserted into the locking hole 12c. At this time, the wedge nut 12 may be separated into a plurality of pieces.

更に、楔状の雌型係止部材１２の外面は、テーパ穴５のテーパ面に沿った、すなわち、先方Ａ（先端部４ａ）側から奥側Ｂ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、軸方向断面が不等辺三角形状で、先部のテーパ角度を小さく形成した、のこぎり刃形状の係止山及び係止溝からなる係止部（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 into a tapered surface 12a whose outer diameter gradually increases along the tapered surface of the tapered hole 5, that is, from the front A (tip portion 4a) side to the back side B. It is formed. Further, on the inner circumferential surface of each female type locking member 12, a locking portion (female thread) 12b consisting of a spiral locking ridge and a locking groove is formed in a circular arc centered on the axis XX of the casing 3. It is large and carved in the direction along the axis XX. This spiral locking portion 12b can have a thread of any cross-sectional shape as long as it is spirally formed, and has a scalene triangular cross-section in the axial direction, and a taper at the tip. A locking portion (female thread) 12b consisting of a sawtooth-shaped locking ridge and a locking groove with a small angle, or a locking portion having an isosceles triangular shape, a right triangle, or the like can be used.

上記により、複数個の楔ナット１２により、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Ａ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, a locking hole (female threaded hole) 12c is formed by the plurality of wedge nuts 12, and as each wedge nut 12 retreats along the tapered surface, the diameter of the female threaded hole 12c is expanded, and the female threaded hole 12c is expanded to the other side A. By moving, the diameter of the female threaded hole 12c is reduced.

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の枚数は、１枚でも複数でもよい。 A biasing means receiver (spring receiver) 13 that is commonly engaged with each wedge nut 12 is arranged at the rear end of the wedge nut 12 . The number of urging means receivers 13 may be one or more.

ケーシング３の奥側Ｂ部の雌ねじ３ａには、中心部にねじ穴１４ａを形成した蓋体１４が螺着されている。 A cover body 14 having a screw hole 14a formed in the center is screwed onto the female thread 3a on the back side B of the casing 3.

付勢手段受け１３と蓋体１４の間には付勢手段１５が設けられている。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。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（先方Ａ）方向へ付勢されている。 A biasing means 15 is provided between the biasing means receiver 13 and the lid body 14. The biasing means 15 is made of an elastic member such as a coil spring, rubber, resin, or urethane. In the first embodiment, a coil spring is used to store the device in a compressed state. Due to the urging force of the urging means 15, each wedge nut 12 is always urged toward the tip end 4a (front A).

蓋体１４には、蓋体１４から奥側Ｂ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の奥側Ｂ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 that protrudes from the lid 14 toward the rear side B is screwed and fixed to the lid 14 . A retaining portion 18a is provided on the back side B of the anchor bar 18 so as to protrude toward the outer circumferential side.

上記の雌型連結部材１は、図１に示すように、一方のコンクリート部材である一方の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。 As shown in FIG. 1, the female connecting member 1 described above has one shield segment 19 which is one concrete member, and the surface 3c of the casing 3 on the tip 4a side is flush with the joint surface 19a of the shield segment 19. It is buried and fixed in such a way that

次に、雄型連結部材２について説明する。 Next, the male connecting member 2 will be explained.

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第１調整部材２１を有する。第１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、この第１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。すなわち、連結体２２の雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向の外側に、第１調整部材２１が設けられている。なお、第１調整部材２１と連結体２２の外周面形状は、円形以外にも六角形など任意の形状に形成することができる。 The male connecting member 2 has a first adjusting member 21 made of a deformable member, such as styrofoam, an elastic material such as rubber, resin, cardboard, or the like. The first adjusting member 21 is formed into a cylindrical shape with circular inner and outer circumferential surfaces, and a connecting body 22 whose outer surface is circular is provided within the first adjusting member 21 . That is, the first adjusting member 21 is provided on the outside in the radial direction about the axis YY of the male connecting member 2 of the connecting body 22. Note that the outer peripheral surfaces of the first adjusting member 21 and the connecting body 22 can be formed into any shape other than a circle, such as a hexagon.

この連結体２２は、金属製で、軸方向の両端（先方Ｃと奥側Ｄ）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、先方Ｃ部から奥側Ｄ端に掛けて雌ねじ２２ｂが刻設され、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。 The connecting body 22 is made of metal, and has a hollow portion 22a that is open at both ends in the axial direction (front side C and back side D). A female thread 22b is carved into the inner wall of the hollow part 22a from the front C part to the back D end, and a threadless cylindrical cylinder is formed between the tip of the female thread 22b and the tip of the connecting body 22. A portion 22c is formed.

連結体２２における雌ねじ２２ｂの先部Ｃには、図３に示すように、雄型係止部材２３の奥側に刻設された雄ねじ２３ａが螺着されている。 As shown in FIG. 3, a male screw 23a carved on the inner side of the male locking member 23 is screwed into the tip C of the female screw 22b of the connecting body 22. As shown in FIG.

雄型係止部材２３は、連結体２２の先端より突出しており、その先方（前側）Ｃには、先方Ｃ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、先部に雌型係止部材１２を誘導する曲面が形成され、その奥側Ｄで、かつ、雄ねじ２３ａより先部には、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 connecting body 22, and a dome-shaped guide portion 24 whose diameter is reduced is formed at the front end (C) of the male locking member 23. That is, a curved surface for guiding the female locking member 12 is formed at the tip, and a locking portion consisting of a spiral locking ridge and a locking groove is formed on the back side D and at the tip of the male thread 23a. (Male thread) 23b is carved.

この係止部２３ｂは、螺旋状で、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き、例えば、軸方向断面が不等辺三角形状で、先部のテーパ角度を小さく形成した、のこぎり刃形状の係止山及び係止溝からなる係止部（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。係止部２３ｂの直径は、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。 This locking portion 23b is spiral and may have any shape as long as it corresponds to the locking portion 12b of the wedge nut 12. For example, the locking portion 23b may have a scalene triangular cross section in the axial direction, and the tip may be shaped like a scalene triangle. It is possible to use a locking portion (external thread) 23b consisting of a sawtooth-shaped locking ridge and a locking groove with a small taper angle, or a locking portion having an isosceles triangular shape, a right triangular shape, or the like. The diameter of the locking portion 23b is set to be slightly larger than the diameter of the threaded hole 12c formed by each wedge nut 12 when the wedge nuts 12 are advanced to the maximum.

係止部（雄ねじ）２３ｂと雄ねじ２３ａとの間には基部２５が形成され、基部２５は、図３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で構成されている。 A base portion 25 is formed between the locking portion (male thread) 23b and the male thread 23a, and the base portion 25 is composed of a threadless cylinder having approximately the same diameter in the axis YY direction, as shown in FIG. has been done.

基部２５の外径は、雄ねじ２３ａ及び係止部２３ｂの外径より大きな径で形成され、基部２５の奥側部は、中空部２２ａの円筒部２２ｃ内に嵌合している。基部２５の外径は、雌型連結部材１の挿入部７の内径より小さく形成されている。 The outer diameter of the base portion 25 is larger than the outer diameter of the male screw 23a and the locking portion 23b, and the back side portion of the base portion 25 is fitted into the cylindrical portion 22c of the hollow portion 22a. The outer diameter of the base portion 25 is smaller than the inner diameter of the insertion portion 7 of the female connecting member 1.

連結体２２の奥側Ｄには、図３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。アンカーバー３０の奥側Ｄ端には鍔状の抜け止め部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パイプ３１が設けられている。空間保持用パイプ３１の前側端部は、第１調整部材２１の奥側Ｄの係止部２１ａに係止し、奥側Ｄ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と空間保持用パイプ３１との間には空隙３３が設けられている。 As shown in FIG. 3, an anchor bar 30 is screwed and fixed to the rear side D of the connecting body 22. As shown in FIG. A collar-like retaining portion 30a is provided at the back D end of the anchor bar 30. Furthermore, a space-holding pipe 31 made of an elastic material such as rubber or metal is provided around the outer periphery of the anchor bar 30. The front end of the space holding pipe 31 is locked to the locking part 21a on the back side D of the first adjustment member 21, and the back side D end is locked to the rubber provided on the retaining part 30a of the anchor bar 30. It is locked to a seat member 32 made of an elastic material such as. A gap 33 is provided between the anchor bar 30 and the space holding pipe 31.

なお、空隙保持用パイプ３１と空隙３３を設けることなく、アンカーバー３０における空隙保持用パイプ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く、例えば、第１調整部材２１を奥側まで延在させて形成しても良い。 In addition, without providing the gap holding pipe 31 and the gap 33, the entire outer periphery of the portion of the anchor bar 30 corresponding to the gap holding pipe 31 may be formed of an elastic material such as rubber. For example, the first adjustment member 21 may be formed by extending to the back side.

第１調整部材２１、アンカーバー３０、空隙保持用パイプ３１は、図４，図５に示すように、他方のコンクリート部材である他方の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、その第１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 FIGS. 4 and 5, the first adjustment member 21, the anchor bar 30, and the gap holding pipe 31 are connected to the other shield segment 35, which is the other concrete member, so that the front end surface 22d of the connecting body 22 is connected to the shield segment. It is buried and fixed so as to be flush with the joint surface 35a of 35, and concrete is poured outside of the first adjustment member 21, gap retaining pipe 31, and retaining part 30a. .

また、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) is provided to protrude from the joining surface 19a of one of the shield segments 19, and a sealing material (not shown) is provided to protrude from the joining surface 35a of the other shield segment 35.

他方のコンクリート部材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
第１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 concrete member 35 is connected to the anchor bar 30 by the interaction of the first adjusting member 21 made of a deformable member, the gap 33, the gap retaining pipe 31, and the seat member 32. It can be displaced in a direction perpendicular to its axis YY, centering on the retaining portion 30a.

上記楔ナット１２の雌ねじ１２ｂと、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）は、任意に設定し、本実施例では、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た。 The interval (thread pitch) between the locking ridges of the female thread 12b of the wedge nut 12 and the male thread 23b of the male locking member 23 is set arbitrarily, and in this embodiment, It was made smaller than the thread pitch.

次に本発明のコンクリート部材の連結装置１０の連結方法について説明する。 Next, a method of connecting the concrete member connecting device 10 of the present invention will be explained.

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。 First, with 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 being located approximately coaxially, one shield segment 19 and the other shield segment 19 are connected to each other. The shield segments 35 are brought relatively close to each other, and the male locking member 23 is inserted through 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から挿入されると、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を拡径するとともに、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 of the female connecting member 1, the male locking member 23 causes each wedge nut 12 to retreat against the urging force of the urging means 15. The threaded hole 12c formed by each wedge nut 12 is expanded in diameter, and the threaded hole 12c is entered while climbing over 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、テーパ穴５の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 distal end surface of the casing 3 in the female coupling member 1, that is, the joint surface 19a of one shield segment 19, and the distal end surface of the coupling body 22 in the male coupling member 2, that is, the joint surface 35a of the other shield segment 35 are in contact with each other. When insertion of the male connecting member 2 is stopped, each wedge nut 12 is pushed back toward the tip end 4a side by the urging force of the urging means 15, and the tapered surface of the tapered hole 5 causes each wedge nut 12 to The diameter of the threaded hole 12c that is formed is reduced, and the female thread 12b of each wedge nut 12 meshes with the male thread 23b 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、上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 the first embodiment have the above-described structures, they have the following functions and effects.

雌型連結部材１の軸芯Ｘ－Ｘと雄型連結部材２の軸芯Ｙ－Ｙが、図４に示すように、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第１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、図５に示すように、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 axis XX of the female connecting member 1 and the axis YY of the male connecting member 2 are not concentric with each other (misaligned) as shown in FIG. , the male type connecting member 2 rotates around the retaining portion 30a of the anchor bar 30 due to the interaction between the first adjusting member 21 made of a deformable member, the gap 33, the gap retaining pipe 31, and the seat member 32. As shown in FIG. 5, the axis of the locking member 23 can be displaced in a direction perpendicular to the axis YY of the male connecting member 2, and the male locking member 23 can be moved by the screw of the female connecting member 1. It can be inserted into the hole 12c.

また、図５に示すように、雄型連結部材２の軸芯Ｙ－Ｙが、雌型連結部材１の軸芯Ｘ－Ｘに対して傾いた状態で、雌型連結部材１と雄型連結部材２を連結する場合、雄型係止部材２３の基部２５が、挿入部７と当接した後に、雄型係止部材２３の軸芯が雌型連結部材１の軸芯Ｘ－Ｘ方向に案内され、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。 Further, as shown in FIG. 5, the female connecting member 1 and the male connecting member are connected in a state where the axis YY of the male connecting member 2 is inclined with respect to the axis XX of the female connecting member 1. When connecting the members 2, after the base 25 of the male locking member 23 comes into contact with the insertion portion 7, the axis of the male locking member 23 is aligned in the direction of the axis XX of the female connecting member 1. By being guided, it is possible to prevent the positions of one wedge nut 12 and other wedge nuts 12 from being greatly different in the axial direction.

これにより、連結後において、シールドセグメント１９、３５の相互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 between the shield segments 19 and 35 in the direction of separating them after connection, the opening between the shield segments 19 and 35 can be minimized, and the shield segments Water leakage from between 19 and 35 can be prevented. Furthermore, since the opening can be made smaller, the sealing material provided between the shield segments 19 and 35 can be made smaller, and manufacturing costs can be reduced.

更に、シールドセグメント１９、３５の連結時に、雄型連結部材２に加わる剪断荷重が
最も強くなる基部２５に必要な強度となるように外径を設定し、雄型係止部材２３の雄ねじ２３ａ及び係止部２３ｂの外径を基部２５より細くすることで、雄型連結部材２全体の外径を細く形成でき、このように雄型連結部材２全体の外径を細くしても、雄型連結部材２に要求される強度を確保することができる。また、雄型連結部材２全体の外径を細く形成できることで、雄型連結部材２の製造コストを低減できる。 Furthermore, when connecting the shield segments 19 and 35, the outer diameter is set so that the strength necessary for the base 25, where the shearing load applied to the male connecting member 2 is strongest, is set, and the male screws 23a and 23 of the male locking member 23 are By making the outer diameter of the locking part 23b smaller than the base part 25, the outer diameter of the entire male connecting member 2 can be made smaller. The strength required for the connecting member 2 can be ensured. Further, since the outer diameter of the entire male connecting member 2 can be made thin, the manufacturing cost of the male connecting member 2 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、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、軸芯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、その軸芯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 of a spiral locking ridge and a locking groove, but the male locking The locking portion 23b of the member 23 and the locking portion 12b of the female locking member 12 are provided with a plurality of locking ridges and locking grooves formed in an annular shape perpendicular to the axes XX and YY. , a large number may be arranged consecutively in the axial direction.

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の係止山及び係止溝は任意に形成でき、例えば、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。 The locking ridges and grooves of the locking portion 23b of the male locking member 23 and the locking portion 12b of the female locking member 12 can be formed as desired. It is possible to use a locking portion formed of a right triangle, or a locking portion formed of a series of locking ridges in the shape of a right triangle or a scalene triangle with a small taper angle at the tip.

係止山間の間隔（ピッチ）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 distance (pitch) between the locking ridges is set to a value corresponding to the thread 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。 Since the other members have the same structure as the first embodiment, their explanation will be omitted.

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。 Furthermore, the second embodiment also provides the same functions and effects as those of the first embodiment.

［実施例３］
前記実施例１，２においては、雄型連結部材２に、第１調整部材２１、アンカーバー３０、空隙保持用パイプ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、雌型連結部材１にも、雄型連結部材２における第１調整部材２１、アンカーバー３０、空隙保持用パイプ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１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。 [Example 3]
In the first and second embodiments, the first adjusting member 21, the anchor bar 30, the gap retaining pipe 31, etc. are provided in the male connecting member 2, so that the male locking member 23 is connected to the male connecting member 2. Although the female type connecting member 1 is made to be able to be displaced in a direction perpendicular to the axis Y-Y of the By providing a member that achieves the above effect, the female connecting member 1 may be displaced in a direction perpendicular to its axis XX centering on the retaining portion of the anchor bar.

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、その説明を省略する。 Since the other members have the same structure as those of the first and second embodiments, their explanation will be omitted.

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。 Furthermore, the third embodiment also provides the same functions and effects as those of the first and second embodiments.

［実施例４］
図６に示す本実施例４は、上記実施例１乃至３の第１調整部材２１における雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向の外側に、金属で形成し、かつ、雄型連結部材２が、連結体２２における雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向への移動を抑制する連結体移動抑制部材４０を設けたものである。 [Example 4]
In the fourth embodiment shown in FIG. 6, the first adjustment member 21 of the first to third embodiments is formed of metal on the outside in the radial direction centering on the axis YY of the male connecting member 2, and , the male connecting member 2 is provided with a connecting body movement suppressing member 40 that suppresses movement of the male connecting member 2 in the connecting body 22 in the radial direction about the axis YY.

連結体移動抑制部材４０は、その先端面が、他方のシールドセグメント３５における接合面３５ａと略同じとなるように配置されている。 The connecting body movement suppressing member 40 is arranged so that its distal end surface is substantially the same as the joint surface 35a of the other shield segment 35.

また、連結体移動抑制部材４０は、図６に示すように、第１調整部材２１の先方Ｃの全周を覆うように形成してもよいし、図７に示すように、第１調整部材２１の外周面全体を
覆うように形成してもよい。 Further, as shown in FIG. 6, the connecting body movement suppressing member 40 may be formed to cover the entire circumference of the tip C of the first adjusting member 21, or as shown in FIG. It may be formed to cover the entire outer peripheral surface of 21.

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。 Since the other members have the same structure as those of the first to third embodiments, their explanation will be omitted.

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。 Furthermore, the fourth embodiment also provides the same functions and effects as those of the first to third embodiments.

更に、本実施例４では、連結体２２における雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向への移動を抑制する連結体移動抑制部材４０を設けたことにより、雄型連結部材２が、図５に示すよう、雌型連結部材１と連結した際に、雄型連結部材２の軸芯Ｙ－Ｙが雌型連結部材１の軸芯Ｘ－Ｘに対し傾いた際に、雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向への移動を抑制し、シールドセグメント３５に加わる荷重を軽減し、シールドセグメント３５にクラックが生じることを抑制できる。 Furthermore, in the fourth embodiment, by providing the coupling member movement suppressing member 40 that suppresses the movement of the male coupling member 2 in the coupling body 22 in the radial direction around the axis YY, the male coupling member 2 is As shown in FIG. , it is possible to suppress the movement of the male connecting member 2 in the radial direction about the axis YY, reduce the load applied to the shield segment 35, and suppress the occurrence of cracks in the shield segment 35.

［実施例５］
上記実施例１乃至４の雄型連結部材２においては、基部２５の奥側部を、連結体２２における中空部２２ａの円筒部２２ｃ内に嵌合させたが、本実施例５の雄型連結部材４６においては、図８に示すように、基部２５を、連結体４２に嵌合させずに、連結体４２の先方Ｃ側に位置するように設けるとともに、基部４１の奥側Ｂ部４１ａが、他方のシールドセグメント３５における接合面３５ａより奥側Ｂに位置するようにしたものである。 [Example 5]
In the male connecting member 2 of Examples 1 to 4 above, the inner side portion of the base 25 was fitted into the cylindrical portion 22c of the hollow portion 22a of the connecting body 22, but the male connecting member of the fifth embodiment In the member 46, as shown in FIG. 8, the base portion 25 is provided so as to be located on the forward C side of the connecting body 42 without being fitted into the connecting body 42, and the back side B portion 41a of the base portion 41 is , is located on the back side B from the joint surface 35a of the other shield segment 35.

連結体４２の中空部４２ａは、軸方向の両端（先方Ｃと奥側Ｄ）が開口するように形成され、中空部４２ａの内壁には、先端から後端の全体に亘って雌ねじ４２ｂが刻設され、上記実施例１の無ねじ状の円筒部２２ｃは形成されていない。 The hollow part 42a of the connecting body 42 is formed so that both ends in the axial direction (front side C and back side D) are open, and a female thread 42b is carved in the inner wall of the hollow part 42a from the tip to the rear end. However, the unthreaded cylindrical portion 22c of the first embodiment is not formed.

基部４１の奥側部４１ａの連結体４２における雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向の外側には、金属で形成され、かつ、中心部に穴４４ａが形成された鍔状の基部移動抑制部材４４が設けられ、基部４１の奥側部４１ａと基部移動抑制部材４４における穴４４ａの内面との間には、空間４５が形成されている。また、基部移動抑制部材４４の先端面４４ｂは、他方のシールドセグメント３５における接合面３５ａと略同一面上に位置するように形成されている。 The outer side of the connecting body 42 on the back side 41a of the base 41 in the radial direction centered on the axis YY of the male connecting member 2 is made of metal, and a hole 44a is formed in the center. A brim-shaped base movement suppressing member 44 is provided, and a space 45 is formed between the inner side 41a of the base 41 and the inner surface of the hole 44a in the base movement suppressing member 44. Further, the distal end surface 44b of the base movement suppressing member 44 is formed to be located on substantially the same plane as the joint surface 35a of the other shield segment 35.

基部移動抑制部材４４の外周面４４ｃは、図８に示すように、先端面４４ｂと直交するように形成してもよいし、奥側端面４４ｄにおける雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向の外側端が、先端面４４ｂにおける雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向の外側端より外側に位置するように形成してもよい。例えば、図９に示すように、奥側に向かう程外側に位置するテーパ状に形成してもよいし、図１０に示すように、段部４７を形成して、奥側端面４４ｄの外側端が、先端面４４ｂの外側端より外側に位置するようにしてもよい。 As shown in FIG. 8, the outer circumferential surface 44c of the base movement suppressing member 44 may be formed to be orthogonal to the distal end surface 44b, or may be formed so as to be perpendicular to the axis YY of the male connecting member 2 at the rear end surface 44d. The outer end in the radial direction around the center may be located outside the outer end in the radial direction around the axis YY of the male connecting member 2 on the distal end surface 44b. For example, as shown in FIG. 9, it may be formed in a tapered shape that is located outward toward the back side, or as shown in FIG. may be located outside the outer end of the tip surface 44b.

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。 Since the other members have the same structure as those of the first to fourth embodiments, their explanation will be 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。 Furthermore, the fifth embodiment also provides the same functions and effects as those of the first to fourth embodiments.

更に、本実施例５の雄型連結部材４６においては、基部４１を、連結体４２に嵌合させずに、連結体４２の先端側に位置するように設けるとともに、基部４１の奥側部４１ａが、他方のシールドセグメント３５における接合面３５ａより奥側に位置するようにしたことにより、雄型連結部材４６の連結体４２の外径を、上記実施例１～４の雄型連結部材２の連結体２２の外径より細く形成でき、雄型連結部材４６の最外径を、雄型連結部材２の
最外径より細く形成でき、雄型連結部材４６の製造コストを低減できる。 Furthermore, in the male connecting member 46 of the fifth embodiment, the base 41 is provided so as to be located on the distal end side of the connecting body 42 without being fitted into the connecting body 42, and the rear side portion 41a of the base 41 is provided. is located further back than the joint surface 35a of the other shield segment 35, so that the outer diameter of the connecting body 42 of the male connecting member 46 is set to be the same as that of the male connecting member 2 of Examples 1 to 4 above. The outer diameter of the male coupling member 46 can be made thinner than the outer diameter of the coupling body 22, and the outermost diameter of the male coupling member 46 can be made thinner than the outermost diameter of the male coupling member 2, and the manufacturing cost of the male coupling member 46 can be reduced.

奥側端面４４ｄにおける雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向の外側端が、先端面４４ｂにおける雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向の外側端より外側に位置するように形成した場合、基部移動抑制部材４４が、他方のシールドセグメント３５から脱落することを抑制できる。 The outer end in the radial direction centering on the axis Y-Y of the male connecting member 2 at the rear end surface 44d is the outer end in the radial direction centering on the axis YY of the male connecting member 2 at the tip surface 44b. When formed so as to be located outside the end, the base movement suppressing member 44 can be prevented from falling off from the other shield segment 35 .

［実施例６］
本実施例６は、上記実施例５の基部移動抑制部材４４における雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向の外側に、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第２調整部材５０を設けたものである。 [Example 6]
The sixth embodiment uses a member that can be deformed radially outward about the axis YY of the male connecting member 2 in the base movement suppressing member 44 of the fifth embodiment, for example, an elastic material such as styrene foam or rubber. A second adjustment member 50 made of material, resin, cardboard, etc. is provided.

第２調整部材５０の形状は、基部移動抑制部材４４の外周面４４ｃの形状に応じて、図１１～図１３に示すように、任意に形成することができる。 The shape of the second adjustment member 50 can be arbitrarily formed according to the shape of the outer peripheral surface 44c of the base movement suppressing member 44, as shown in FIGS. 11 to 13.

その他の部材については、前記実施例５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 fifth embodiment, so their explanation will be omitted.

また、本実施例６においても、前記実施例５と同様の作用、効果を奏する。 Further, the present embodiment 6 also has the same functions and effects as those of the above-mentioned embodiment 5.

更に、基部移動抑制部材４４の径方向の外側に、第２調整部材５０を設けたことにより、雌型連結部材１の軸芯Ｘ－Ｘと雄型連結部材２，４６の軸芯Ｙ－Ｙの目違い量が大きくても、良好に雌型連結部材１と雄型連結部材２，４６を連結することができる。 Furthermore, by providing the second adjustment member 50 on the outside of the base movement suppressing member 44 in the radial direction, the axis XX of the female type connecting member 1 and the axis YY of the male type connecting members 2, 46 are adjusted. Even if the amount of misalignment is large, the female connecting member 1 and the male connecting members 2, 46 can be connected well.

［実施例７］
本実施例７は、上記実施例５の第１調整部材２１における雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向の外側に、金属で形成し、かつ、雄型連結部材２が、連結体４２における雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向への移動を抑制する連結体移動抑制部材６０を設け、連結体移動抑制部材６０と上記実施例５の基部移動抑制部材４４と同様の基部移動抑制部材４４を一体に形成したものである。 [Example 7]
In the seventh embodiment, the first adjustment member 21 of the fifth embodiment is formed of metal on the outside in the radial direction centering on the axis YY of the male coupling member 2, and the male coupling member 2 is made of metal. However, a connecting body movement suppressing member 60 is provided to suppress the movement of the male connecting member 2 in the radial direction around the axis YY in the connecting body 42, and the connecting body movement suppressing member 60 and the above embodiment 5 are combined. A base movement suppressing member 44 similar to the base movement suppressing member 44 is integrally formed.

また、本実施例７においても、前記実施例５と同様の作用、効果を奏する。 Furthermore, the seventh embodiment also provides the same functions and effects as those of the fifth embodiment.

［実施例８］
図１５に示す本実施例８は、上記実施例７の連結体移動抑制部材６０と基部移動抑制部材４４における雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向の外側に、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第２調整部材７０を、連結体移動抑制部材６０と基部移動抑制部材４４の外周面全体を覆うように形成したものである。 [Example 8]
In the eighth embodiment shown in FIG. 15, the connecting body movement suppressing member 60 and the base movement suppressing member 44 of the seventh embodiment are deformed radially outward about the axis YY of the male connecting member 2. The second adjusting member 70 is made of a material that can be used, for example, an elastic material such as styrene foam, rubber, resin, cardboard, etc., and is formed to cover the entire outer peripheral surface of the connecting body movement suppressing member 60 and the base movement suppressing member 44. It is something.

その他の部材については、前記実施例７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 seventh embodiment, so their explanation will be omitted.

また、本実施例８においても、前記実施例７と同様の作用、効果を奏する。 Further, in the present embodiment 8, the same operations and effects as in the above-mentioned embodiment 7 are achieved.

更に、本実施例８においては、連結体移動抑制部材６０と基部移動抑制部材４４における雄型連結部材２の軸芯Ｙ－Ｙを中心とする径方向の外側に、第２調整部材７０を設けた
ことにより、雌型連結部材１の軸芯Ｘ－Ｘと雄型連結部材２，４６の軸芯Ｙ－Ｙの目違い量が大きくても、良好に雌型連結部材１と雄型連結部材２，４６を連結することができる。 Furthermore, in the eighth embodiment, a second adjustment member 70 is provided on the outside in the radial direction about the axis YY of the male connecting member 2 in the connecting body movement suppressing member 60 and the base movement suppressing member 44. As a result, even if the misalignment between the axis XX of the female connecting member 1 and the axis YY of the male connecting members 2 and 46 is large, the female connecting member 1 and the male connecting member can be easily connected. 2,46 can be connected.

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。 Although specific examples of the present invention have been described in detail above, these are merely illustrative and do not limit the scope of the claims. The techniques described in the claims include various modifications and changes to the specific examples illustrated above.

１雌型連結部材
２，４６雄型連結部材
３ケーシング
４収納室
５テーパ穴
１０コンクリート部材の連結装置
１２雌型係止部材
１２ｂ雌型係止部材の係止部
１２ｃ係止穴
１５付勢手段
１９、３５シールドセグメント（コンクリート部材）
２１第１調整部材
２２，４２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
４０，６０連結体移動抑制部材
４４基部移動抑制部材
４５空間
５０，７０第２調整部材 1 Female connecting member 2, 46 Male connecting member 3 Casing 4 Storage chamber 5 Tapered hole 10 Concrete member connecting device 12 Female locking member 12b Locking portion of female locking member 12c Locking hole 15 Biasing means 19, 35 Shield segment (concrete member)
21 First adjustment member 22, 42 Connecting body 22a Hollow part 22b Male screw 22c Cylindrical part 23 Male locking member 23b Locking part of male locking member 25 Base 40, 60 Connector movement suppressing member 44 Base movement suppressing member 45 Space 50, 70 Second adjustment member

Claims

It has a female type connecting member and a male type connecting member,
A storage chamber with an open tip is provided in the female connecting member, and a female locking member is provided in the storage chamber with a locking portion formed of a continuous locking crest on the inner surface side;
A male locking member having a locking portion formed of a continuous locking crest is provided at the tip of the male connecting member,
forming a locking hole inside the female locking member;
By inserting the male type locking member into the locking hole, the locking hole expands in diameter and then contracts in diameter, so that the locking portion of the female type locking member and the male type Ensure that the locking part of the locking member meshes with the locking part,
The female connecting member is fixed to one concrete member, the male connecting member is fixed to the other concrete member,
The male connecting member includes a connecting body having a hollow portion with an open tip, and a female thread is carved in the inner wall of the hollow portion of the connecting body,
A base is provided on the back side of the locking part, and a male screw is carved on the back side of the base to be screwed with the female screw of the connecting body,
The outer diameter of the base is larger than the outer diameter of the locking part and the male thread,
The outer diameter of the end of the base on the locking part side is made thinner as it goes toward the locking part, and the outer diameter of the male thread side end of the base is made thinner as it goes toward the locking part,
forming a gap between the outer surface of the base and a member located outside thereof;
The deep side part of the base is located further back than the side surface of one concrete member in the other concrete member,
A device for connecting concrete members, characterized in that a first adjusting member made of a deformable member is provided on the outer periphery of the connecting body.

A tapered hole having a tapered surface whose diameter decreases at the front end is formed in the storage chamber, and 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, A locking portion consisting of a plurality of locking ridges is engraved on the inner surface of the female locking member, and the female locking member is urged forward by a biasing means,
By inserting the male locking member into the locking hole formed by the female locking member, the locking hole expands in diameter, and then the biasing means causes the locking hole to contract in diameter and 2. The concrete member connecting device according to claim 1, wherein the locking portion of the female locking member and the locking portion of the male locking member mesh with each other.

The front end of the connecting body is located further back than the side surface of one concrete member in the other concrete member,
The base portion is provided on the distal side of the distal end of the connecting body,
3. The concrete member connecting device according to claim 1, wherein a space is formed around the back side of the base.

formed of metal on the outside in the radial direction centering on the axis of the male locking member in the first adjustment member, and radially outward centering on the axis of the male locking member in the connecting body; 4. The concrete member connecting device according to claim 1, further comprising a connecting member movement suppressing member for suppressing movement of the concrete members.

5. The concrete member according to claim 4, wherein a second adjusting member made of a deformable member is provided on the outside in the radial direction about the axis of the male locking member in the connecting body movement suppressing member. coupling device.

formed of metal on the outside in the radial direction centered on the axis of the male locking member in the back side of the base, and radially outward centered on the axis of the male locking member in the base. A base movement suppressing member is provided to suppress movement of the base,
forming the space between the base movement suppressing member and the base;
4. The concrete member connecting device according to claim 3, wherein the base movement suppressing member is embedded in the other concrete member.

7. The concrete member according to claim 6, wherein a second adjusting member formed of a deformable member is provided on the outside in the radial direction about the axis of the male locking member in the base movement suppressing member. Coupling device.

A first adjustment member made of a deformable member is provided on the outer periphery of the connecting body, and the first adjustment member is made of metal on the outside in the radial direction centering on the axis of the male locking member, and Providing a connecting body movement suppressing member that suppresses movement of the male locking member in the connecting body in a radial direction around the axis,
8. The concrete member connecting device according to claim 6, wherein the connecting body movement suppressing member and the base movement suppressing member are integrally formed.