JP2004332209A

JP2004332209A - Connecting device

Info

Publication number: JP2004332209A
Application number: JP2003124870A
Authority: JP
Inventors: Hideshi Fukaya; 秀史深谷; Akira Sugiyama; 晃椙山; Takaomi Mori; 孝臣森; Isokazu Kubota; 五十一久保田
Original assignee: Mitsuchi Corp; Fujimi Koken Co Ltd
Current assignee: Mitsuchi Corp; Fujimi Koken Co Ltd
Priority date: 2003-04-30
Filing date: 2003-04-30
Publication date: 2004-11-25
Anticipated expiration: 2023-04-30
Also published as: JP4084699B2

Abstract

<P>PROBLEM TO BE SOLVED: To surely perform the connecting even if the axis of a male connecting part and a female connecting part is dislocated, in a connecting device connectable by inserting a male connector of the male connecting part into the female connecting part, by arranging divided female locking members in the female connecting part. <P>SOLUTION: The male connecting part A is arranged in one member to be connected, and the female connecting part B is arranged in the other member 3 to be connected. The male connector 13 is arranged in the male connecting part, so as to be movable in substantially parallel in the direction orthogonal to the axial direction. A mechanism is arranged for inserting and connecting the male connector 13 into and to the female connecting part B. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は連結装置に関する。
【０００２】
【従来の技術】
従来、例えば図９に示すようなトンネルを構成するためのコンクリートセグメント或いはスチールセグメント１０１は、その周方向の相互の連結のみならず、周方向と直交する方向、すなわち、トンネルの軸方向に隣接するセグメント相互においても連結される。図９において１０２はトンネルの軸方向に隣接するセグメント相互の連結装置を示す。
【０００３】
このような連結装置１０２として従来図１０及び図１１に示すような連結装置が知られている。
【０００４】
この図１０及び図１１に示す連結装置１０２は、一方のセグメント１０１の側枠１０３の内側に内枠１０４を設け、該内枠１０４内にナット１０５を、回転不能ではあるが周囲の隙間１０６により径方向には若干移動できるようにして備え、他方のセグメント１０７の側枠１０８を前記一方のセグメント１０１の側枠１０３に当て、他方のセグメント１０７の内側から突出させたボルト１０９を前記ナット１０５に螺挿して連結するようになっている。
【０００５】
また、図１２に示すように、一方の部材２０１に設けられた雄型連結体２０２を、他方の部材２０３に設けられた雌型連結部２０４へ挿入することにより連結できる連結装置において、その雄型連結体２０２を、その基端２０５を中心として先部２０６が矢印方向に揺動するようにして設けたものも知られている。
【０００６】
【発明が解決しようとする課題】
前記図１０及び図１１に示す従来の連結装置においては、連結する双方のセグメント１０１と１０７の連絡中心が相互に若干ずれていても、ナット１０６を若干径方向に移動できるようにしたので、その連結は可能であるが、この連結作業は、ボルト１０９を手作業で回転しなければならず、多数のボルトにより連結するセグメント相互の連結作業には極めて不能率である。
【０００７】
また、前記図１２に示す従来の技術においては、雄型連結体２０２の軸芯と雌型連結部２０４の軸芯がずれている場合に、連結できるとしても、雄型連結体２０２が基端２０５を中心として傾斜して連結され、良好な連結が行われない問題がある。
【０００８】
そこで本発明は、前記のセグメントのような連結される部材相互を近接させることで連結できる連結装置であって、前記のように、連結中心が若干ずれていても良好に連結することができる連結装置を提供することを目的とするものである。
【０００９】
【課題を解決するための手段】
前記の課題を解決するために、請求項１記載の発明は、ケーシング内に先方が開口する収納室を設け、該収納室の先部に、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、分割された雌型係止部材を軸方向に摺動可能に配置し、該雌型係止部材を付勢手段で先方へ付勢した雌型連結部と、雄型連結体を突設した雄型連結部とからなり、前記雄型連結体を前記雌型連結部に開口した挿入口から挿入することにより、雌型係止部材が雄型連結体に係止するようにした連結装置であって、
連結すべき一方の部材に前記雄型連結部を設け、連結すべき他方の部材に前記雌型連結部を設け、かつ、雄型連結部の雄型連結体と雌型連結部のケーシングの少なくとも一方を、その軸方向と直交する方向へ略平行移動できるように設けたことを特徴とするものである。
【００１０】
請求項２記載の発明は、ケーシング内に先方が開口する収納室を設け、該収納室の先部に、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、周方向に複数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し、該雌型係止部材を付勢手段で先方へ付勢した雌型連結部と、雄型連結体を突設した雄型連結部とからなり、前記雄型連結体を前記雌型連結部に開口した挿入口から挿入することにより、雌型係止部材が雄型連結体に係止するようにした連結装置であって、
連結すべき一方の部材に前記雄型連結部を設け、連結すべき他方の部材に前記雌型連結部を設け、かつ、雄型連結部の雄型連結体と雌型連結部のケーシングの少なくとも一方を、その軸方向と直交する方向へ略平行移動できるように設けたことを特徴とするものである。
【００１１】
請求項３記載の発明は、前記請求項１又は２記載の発明において、前記雄型連結体の基部と雌型連結部のケーシングの少なくとも一方を、その外周に弾性体を設けて略並行移動できるようにしたものである。
【００１２】
請求項４記載の発明は、前記請求項３記載の発明において、前記弾性体を有する雄型連結体の基部或いは前記弾性体を有する雌型連結部のケーシングを、連結される部材に仮止めしたものである。
【００１３】
請求項５記載の発明は、連結される双方の部材に金属製の側枠を設け、該側枠に連結用の穴を形成し、一方の連結される部材の側枠の内側に、前記穴を中心として保持部材を配置し、該保持部材の外周に弾性体を設け、該弾性体の外周を、一方の連結される部材で保持し、雄型連結体を、その基部を前記保持部材に設けるとともに先部を前記穴を通じて側枠外へ突出して設け、
他方の連結される部材の側枠の内側に、前記穴を中心としてケーシングを固設し、該ケーシング内に先方が開口する収納室を設け、該収納室の先部に、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、周方向に複数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し、該雌型係止部材を付勢手段で先方へ付勢したことを特徴とするものである。
【００１４】
請求項６記載の発明は、連結される双方の部材に金属製の側枠を設け、該側枠に連結用の穴を形成し、一方の連結される部材の側枠の内側に、前記穴を中心として保持部材を配置し、雄型連結体を、その基部を前記保持部材に設けるとともに先部を前記穴を通じて側枠外へ突出して設け、
他方の連結される部材の側枠の内側に、前記穴を中心としてケーシングを配置し、該ケーシングの外周に弾性体を設け、該弾性体の外周を、他方の連結される部材で保持し、前記ケーシング内に先方が開口する収納室を設け、該収納室の先部に、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、周方向に複数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し、該雌型係止部材を付勢手段で先方へ付勢したことを特徴とするものである。
【００１５】
請求項７記載の発明は、前記請求項１乃至６のいずれかの発明において、前記雌型係止部材の内面に雌ねじを形成し、雄型連結体の外面に、前記雌ねじに係合する雄ねじを形成したものである。
【００１６】
請求項８記載の発明は、前記請求項７の発明において、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ものである。
【００１７】
請求項９記載の発明は、前記請求項１乃至６のいずれかに記載の発明において、前記雄型連結体の外面に周方向の環状の平行溝を形成し、前記雌型係止部材の内面に、前記平行溝に嵌合する平行溝を形成したものである。
【００１８】
請求項１０記載の発明は、前記請求項９記載の発明において、前記平行溝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ものである。
【００１９】
【発明の実施の形態】
本発明の好ましい実施の形態を図１乃至図８に示す実施例に基づいて説明する。
図１乃至図７は第１実施例を示す。
【００２０】
図１は本発明をトンネルの壁面に配置されるセグメントに適用する例を示し、図１に示すセグメント１は周方向に隣接するセグメント１，１相互にも連結され、更に、トンネルの軸方向に隣接するセグメント相互にも連結される。
【００２１】
本発明は、前記のトンネル用セグメントにおいて、トンネルの軸方向に隣接するセグメント相互を連結する連結装置として用いられる。
【００２２】
また、本発明は前記のトンネル用のセグメント以外の部材を相互に連結する連結装置としても適用できるものであり、本発明は、トンネル用のセグメントの連結装置に限るものではない。
【００２３】
したがって、本発明の連結装置により連結される部材を、以下、連結される部材という。
【００２４】
連結される部材２，３は、図２に示すように、金属製の側枠４，５の内側にコンクリート６，７を打設した部材である。
【００２５】
一方の連結される部材２の側枠４には、図３に示すように、連結位置に穴８が形成され、側枠４の内面には金属製の円筒状の保持部材９が、その軸芯を前記穴８の略中央に位置させて仮止め固定されている。図の実施例では、前記保持部材９をナットで形成し、その雌ねじ９ａの軸芯を穴８の略中央部に位置させ、かつ、雌ねじ９ａの内径を穴８の内径よりも小さく設定している。
【００２６】
前記保持部材９は前記側枠４の内面に点付溶接などの固定手段１０により仮止めして固定されており、この固定手段１０の固定力は、保持部材９に、その径方向に所定の大きな荷重が作用したときに、固定手段１０が破断してこの保持部材９が側枠４と分離するように設定されてる。この固定手段である点付溶接１０は、保持部材９の周方向において、適宜間隔を有して複数箇所で行われている。
【００２７】
前記保持部材９の外周の全周にはゴム等の弾性材料からなる弾性体１１が嵌合状態で設けられている。該弾性体１１は筒状に形成されている。
【００２８】
前記雌ねじ９ａの後端部は栓１２により閉塞されている。
前記保持部材９には前記穴８の内径よりも小径の棒状体からなる雄型連結体１３の基端が固着されており、該雄型連結体１３が前記穴８内を通って前記側枠４の外部へ突出している。実施例では、雄型連結体１３の基部に雄ねじ１３ａを刻設し、該雄ねじ１３ａを前記保持部材９の雌ねじ９ａに螺着して雄型連結体１３を保持部材９に固定している。更に、雄型連結体１３の先部にも雄ねじ１３ｂが刻設されている。
【００２９】
以上の構造により、雄型連結体１３の外周面と穴８の内周面間に所定の寸法Ｄを有する空間１４が形成されている。
【００３０】
前記の構成からなる雄型連結部Ａは、前記側枠４に、適宜間隔を有して必要数設けられている。
【００３１】
また、この雄型連結部Ａを組み付けるには、先ず保持部材９を側枠４の内側の所定位置に配置し、次で図４に示すように、穴８から挿入したリーマ５０を保持部材９の雌ねじ９ａに螺合して保持部材９を側枠４に密着させ、この状態でスポット溶接などの点付溶接１０を行い、保持部材９を側枠に仮止め的に固着する。そして、その後、リーマ５０を外す。
【００３２】
次に、前記弾性体１１を保持部材９の外周に嵌合するとともに栓１２を付設する。なお、この弾性体１１と栓１２は、前記の溶接固定作業の前に保持部材９に予め設けておいてもよい。
【００３３】
次に、側枠４の内側にコンクリート６を打設して、前記保持部材９、弾性体１１、栓１２をコンクリート６内に埋設する。なお、この後に前記のリーマ５０を外してもよい。
【００３４】
次に、前記雄型連結体１３を、穴８から挿入して保持部材９に螺着固定する。
これにより、雄型連結部Ａが構成される。
【００３５】
次に、他方の連結される部材３の側枠５には、図３に示すように、前記一方の連結される部材２の側枠４に形成した穴８に対応する位置に穴１５が形成されている。該穴１５の内径は前記の穴８と略同径に形成されている。
【００３６】
前記他方の連結される部材３の側枠５の内面には、雌型連結部Ｂが設けられている。
【００３７】
該雌型連結部Ｂを構成するケーシング１６は円筒状に形成され、その内部に収納室１７が形成されている。該ケーシング１６は、その収納室１７の中心を前記穴１５の略中央に位置させて側枠５の内面に溶接１８などにより固着されている。
【００３８】
前記該収納室１７の先部には、その内周面を先端側から後方にかけて内径が徐々に拡大するテーパ面にしてなるテーパ穴１９に形成され、収納室１７の中間部はバネ収納部２０に形成され、収納室１７の後部内周には雌ねじ２１が刻設されている。前記のテーパ穴１９より先部には挿入口２２が開口形成されている。
【００３９】
前記テーパ穴１９の内面には、軸方向に沿った摺動案内突条２３が、図５に示すように周方向に分割して複数形成されている。なお、この摺動案内突条２３は無くてもよい。
【００４０】
また、前記テーパ穴１９内には、分割された雌型係止部材２４が軸方向に摺動可能に配置されており、実施例では、図５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２４が、前記摺動案内突条２３相互間においてケーシング１６の軸方向に摺動可能に配設されている。更に、該楔状の雌型係止部材２４の外面は前記テーパ穴１９のテーパ面に沿った、すなわち、先端側から後方にかけて外径が徐々に拡大するテーパ面２５が形成されている。更に、各雌型係止部材２４の内周面には前記雄ねじ１３ｂが螺合する雌ねじ２６が、ケーシング１６の軸心を中心とする円弧でかつ軸心に沿った方向に刻設されている。
【００４１】
以上により、複数個の雌型係止部材２４によって雌ねじ穴が形成され、各雌型係止部材２４がテーパ面１９に沿って後退することにより、その雌ねじ穴が拡径され、先方へ移動することにより、その雌ねじ穴が縮径するようになっている。
【００４２】
前記雌型係止部材２４の後端には、各雌型係止部材２４に共通して係合するバネ受け２７が配置されている。
【００４３】
前記ケーシング１６の後部の雌ねじ２８には、蓋板２９が螺着されている。前記バネ収納部２０内には付勢手段であるバネ３０が、前記バネ受け２７と蓋板２９間に圧縮した状態で介在され、該バネ３０の付勢力により各雌型係止部材２４を常時先方へ付勢している。
【００４４】
前記穴１５と雌型連結部Ｂは、前記一方の連結される部材２の雄型連結部Ａに対向する位置に複数設けられている。
【００４５】
また、前記の雌型連結部Ｂのケーシング１６を側枠５に固着した後に、側枠５の内側にコンクリート７が打設され、ケーシング１６はコンクリート７内に埋設される。
【００４６】
前記雄型連結体１３に形成した雄ねじ１３ｂと、前記雌型係止部材２４に形成した雌ねじ２６は、その呼び径に対するねじピッチＰ（図７参照）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して形成するとよい。例えば、ＪＩＳＢ０２０７に規定するメートル細目ねじの呼び径に対するねじピッチの値よりも小さく形成するとよい。
【００４７】
例として、呼び径がＭ２４（ｍｍ）の場合には、前記ＪＩＳＢ０２０７のメートル細目ねじではねじピッチＰを３ｍｍ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に設定するとよい。
【００４８】
また、呼び径がＭ３０（ｍｍ）の場合にもねじピッチＰを０．３〜０．８ｍｍ、望ましくは０．５ｍｍに設定するとよい。
【００４９】
次に前記第１実施例の連結作用について説明する。
先ず、既に所定位置に配置された、例えば他方の連結される部材３に対し、一方の連結される部材２を図３に示すように配置して一方の部材２を他方の連結される部材３側へ移動する。
【００５０】
このとき、一方の連結される部材２における雄型連結体１３の軸芯Ｘ１が他方の連結される部材３の穴１５の中心Ｘ２と略一致している場合には、雄型連結体１３は穴１５を通じてケーシング１６内に挿入される。
【００５１】
これにより、雄型連結体１３が各雌型係止部材２４をバネ２０の付勢力に抗して後退させて各雌型係止部材２４で形成されるねじ穴を拡径しつつ挿入する。一方の連結される部材２の側枠４と、他方の連結される部材３における側枠５が接して雄型連結体１３の挿入が終了（停止）されると、各雌型係止部材２４はバネ３０の付勢力によって先方へ押し戻されるとともにテーパ面１９，２５によって各雌型係止部材２４で形成される雌ねじ穴径が縮径し、各雌型係止部材２４の雌ねじ２６が雄型連結体１３の雄ねじ１３ｂに噛合する。これによって両部材２，３は、その両軸Ｘ１とＸ２が略同一直線状に位置して相互に連結される。
すなわち、雄型連結体１３を雌型連結部に開口した挿入口から挿入することにより、雌型係止部材２４が拡径し、雄型連結体１３の挿入後に雌型係止部材２４が付勢手段３０によって雄型連結体１３に係止して連結される。
【００５２】
次に、本来、前記の両穴８と１５は設計上では合致する位置にあるが、連結される部材２，３の板のそりによって穴８と１５が位置ずれしたり、或いは保持部材９やケーシング１６の組付け位置のずれが生じる場合がある。
【００５３】
このような場合において、前記の連結の際に穴１５の中心Ｘ２に対して雄型連結体１３の軸芯Ｘ１が、例えば図３に示すＸ３にずれている場合には、雄型連結体１３の先端の曲面状の一端１３ｃが穴１５の一端１５ａに当たる。この当たりが生じても、この重量の大きい一方の連結される部材２を重機で他方の連結される部材３側へ移動して連結作業を行うと、雄型連結体１３には図３の矢印Ｙ方向への大きな荷重が作用する。このような大きな荷重が作用すると、その荷重によって固定手段１０である点付溶接部が破断されて、保持部材９が弾性体１１を圧縮して、軸芯Ｘ３に平行して矢印Ｙ方向に移動可能状態になる。そのため、雄型連結体１３が矢印Ｙ方向へ平行に移動して、穴１５に挿入される。この挿入により両軸Ｘ１とＸ２が略同一直線状になり、前記と同様の連結が行える。
【００５４】
このとき、雄型連結体１３の基部、すなわち、保持部材９の軸方向の全長にわたる外周に弾性体１１が配置されているため、保持部材９とともに雄型連結体１３が軸芯Ｘ１に平行して移動し、雄型連結体１３が、こじれることなく良好に挿入できる。
【００５５】
例えば、雄型連結体１３の基部が固定され、この基部を中心として雄型連結体１３の先側が揺動する構造であると雄型連結体１３がこじれて良好な挿入ができないが、本発明ではこのようなことがない。
【００５６】
また、弾性体１３は環状に形成されて、雄型連結体１３の基部、すなわち保持部材９の全周に配置されているため、雄型連結体１３に、その軸方向と直交する方向におけるいずれの方向に荷重が作用しても、その方向に雄型連結体１３が平行移動して、芯合わせが行われる。
【００５７】
また、前記のような連結時において、雌型係止部材２４は、最終的に噛合すべき雄型連結体１３のねじ山を乗り越えることができず、雄型連結体１３には、その軸方向へのガタつきが生じ、両側枠４と５の相互間には隙間が生じる。
【００５８】
しかし、雌型係止部材２４の雌ねじ２６と雄型連結体１３の雄ねじ１３ｂのねじピッチＰが、前記のように、通常使用されているＪＩＳ規定の細目ねじのピッチよりも小さく形成されているので、前記のガタつきは極めて小さくなる。
【００５９】
例えば、呼び径がＭ２４（ｍｍ）の場合において、ねじピッチＰが従来のＪＩＳＢ０２０７の細目ねじのように２ｍｍであると、前記のように隙間が１〜４ｍｍになるのに対し、本発明の前記実施例のように呼び径がＭ２４（ｍｍ）の場合にねじピッチＰを０．５ｍｍに設定すると前記の隙間は０．２５〜１ｍｍとなる。
【００６０】
このように、隙間が小さくなることは、両部材２，３間での水もれを防止することができる。更に、部材２，３にシール材を設ける場合においても、これを小さなものにしてコスト低減を図ることができる。
【００６１】
また、ねじピッチＰを従来のものよりも小さくすることによって、雌型係止部材２４及び雄型連結体１３の径方向の寸法を従来のものよりも小さくすることができ、これにより、連結具全体を小型化し、部材の厚さを薄くすることができ、かつ連結具及び部材２，３のコスト低減を図ることができる。
【００６２】
また、バネ３０の付勢力によって雌型係止部材２４の雌ねじ２６が雄型連結体１３の雄ねじ１３ａへ食い込むように作用し、かつ、雄型連結体１３に抜け方向への力が作用すると雌型係止部材２４が食い込むため、ねじピッチＰが小さくても強固な連結状態が確保される。
【００６３】
なお、前記実施例においては雌型係止部材２４の内面は、螺旋状の雌ねじとし、雄型連結体１３の外面を螺旋状の雄ねじとしたが、これらのねじの代わりに、前記の雄型連結体１３の外面を、周方向に環状の山部と周方向に環状の谷部を並行に形成してなる並行溝に形成し、雌型係止部材２４の内面を前記の山部と谷部に嵌合する環状の谷部と山部からなる並行溝としてもよい。この場合も、その溝のピッチは前記のように設定するとよい。
【００６４】
図６は第２実施例を示す。
本第２実施例は、前記第１実施例における連結される部材２，３が、コンクリート６，７を打設しない、単に金属板からなるスチール製部材（例えばスチールセグメント）で形成されるものに本発明を適用した例である。
【００６５】
図６において、一方の連結される部材２側には、前記第１実施例と同様に、保持部材９が点付溶接などの固定手段１０で側枠４に仮止めされ、該保持部材９の外周に弾性体１１が設けられ、保持部材９に雄型連結体１３が備えられている。前記側枠４の内側には、前記弾性体１１の外側を囲むように内枠４０が溶接４１等で側枠４に固着して設けられている。そして、この内枠４０の内面と弾性体１１、保持部材９、栓１２の外周面にコンクリート４２を打設している。その他の構造は前記第１実施例と同様である。
【００６６】
また、他方の連結される部材３側は、前記第１実施例におけるコンクリート７を打設しない構造で、その他の構造は前記第１実施例と同様である。
【００６７】
本第２実施例においても、前記第１実施例と同様の作用、効果を発揮できる。
図８は第３実施例を示す。
【００６８】
本第３実施例は、前記実施例の雄型連結体１３を、側枠４から突出する部分がねじのない先細状の案内部５１と、その後方において後方が細くなったねじのないテーパ面５２に形成された雄型連結体１３Ａとし、前記雌型係止部材２４を、その内面がねじのない先細状のテーパ面５３に形成された雌型係止部材２４Ａとしたものである。なお、前記雄型連結体１３Ａのテーパ面５２と雌型係止部材２４のテーパ面５３は、同方向が細径するテーパ面に形成され、雄型連結体１３Ａを雌型係止部材２４間に挿入すると、前記実施例のように、雌型係止部材２４が後退し、雄型連結体１３Ａが所定量挿入されると雌型係止部材２４がバネ３０の付勢力により先方へ移動して、雄型連結体１３Ａのテーパ面５２に係合して、両部材２，３が連結されるようになっている。
【００６９】
その他の構造は前記第１実施例と同様であるため、前記と同一部分には前記と同一の符号を付してその説明は省略する。
本第２実施例においても前記第１実施例と同様の作用、効果を発揮できる。
【００７０】
なお、前記第１実施例及び第２実施例及び第３実施例とも、一方の連結される部材２側に弾性体１１を配置し、保持部材９とともに雄型連結体１３，１３Ａが径方向に移動できるように仮止めしたが、この雄型連結体１３，１３Ａ側は側板４に移動しないように固定し、他方の連結される部材３側のケーシング１６を側枠５に並行移動可能に仮止めしてもよい。すなわち、ケーシング１６を側枠５に所定荷重により破断するように点付溶接などの固定手段で仮止めし、このケーシング１６の外周に前記のような弾性体１１を設け、その外部を前記のようにコンクリートで保持するようにしてもよい。
【００７１】
更に、前記保持部材９の外周と前記ケーシング１６の外周の双方に前記の弾性体１１を設けてもよい。
【００７２】
したがって、保持部材９とケーシング１６の少なくとも一方に前記の弾性体１１を設けて、雄型連結体１３とケーシング１６の少なくとも一方が、これらの径方向に平行移動できるように設ければよい。
【００７３】
更に、前記の保持部材９及び弾性体１１を点付溶接以外の適宜手段で所定位置に配置してその外周にコンクリートなどを打設するようにすれば、前記の点付溶接の仮止めは不要である。
【００７４】
【発明の効果】
以上のようであるから、本発明によれば、雄型連結部の雄型連結体と雌型連結部のケーシングの少なくとも一方が略平行移動できるようにしたので、連結される部材のそりや部品の組み付け時の位置ずれにより、連結開始時に雄型連結体の軸芯とケーシングの軸芯がずれていても連結可能であり、かつ、連結終了後においては前記両軸芯が略同一直線上になり、良好な連結ができる。
【図面の簡単な説明】
【図１】本発明の連結装置を適用する実施例を示すトンネルセグメントの図。
【図２】図１におけるＥ−Ｅ線断面図。
【図３】本発明の第１実施例を示す側断面図。
【図４】図３における保持部材を組み付ける際の説明図。
【図５】図３における雌型連結部の横断面図。
【図６】本発明の第２実施例を示す側断面図。
【図７】本発明におけるねじピッチを示す図。
【図８】本発明の第３実施例を示す側断面図。
【図９】従来の連結装置によるトンネルセグメントの連結を示す図。
【図１０】図９におけるＦ−Ｆ線断面図。
【図１１】図１０の連結装置の拡大図。
【図１２】従来の他の連結装置を示す図。
【符号の説明】
Ａ雄型連結部
Ｂ雌型連結部
２，３連結される部材
４，５側枠
６，７，４２コンクリート
８，１５穴
９保持部材
１０仮止め部
１１弾性体
１３，１３Ａ雄型連結体
１６ケーシング
１７収納室
１９テーパ穴
２４，２４Ａ雌型係止部材
３０付勢手段[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connecting device.
[0002]
[Prior art]
Conventionally, for example, a concrete segment or a steel segment 101 for forming a tunnel as shown in FIG. 9 is adjacent not only to the mutual connection in the circumferential direction but also to the direction orthogonal to the circumferential direction, that is, the axial direction of the tunnel. The segments are also connected to each other. In FIG. 9, reference numeral 102 denotes a connecting device for connecting segments adjacent in the axial direction of the tunnel.
[0003]
As such a connecting device 102, a connecting device as shown in FIGS. 10 and 11 is conventionally known.
[0004]
The connecting device 102 shown in FIGS. 10 and 11 is provided with an inner frame 104 on the inner side of the side frame 103 of one segment 101, and a nut 105 is provided in the inner frame 104 by means of a gap 106 that is not rotatable. The side segment 108 of the other segment 107 is applied to the side frame 103 of the one segment 101, and a bolt 109 protruding from the inside of the other segment 107 is attached to the nut 105. They are connected by screwing.
[0005]
Further, as shown in FIG. 12, in a connecting device that can be connected by inserting a male connector 202 provided on one member 201 into a female connector 204 provided on the other member 203, the male connector There is also known a mold connecting body 202 provided such that a tip portion 206 swings in an arrow direction around a base end 205 thereof.
[0006]
[Problems to be solved by the invention]
In the conventional coupling device shown in FIGS. 10 and 11, the nut 106 can be slightly moved in the radial direction even when the connecting centers of the segments 101 and 107 to be coupled are slightly shifted from each other. Although connection is possible, this connection operation | work must rotate the bolt 109 by hand, and it is a very impossible rate for the connection operation | movement of the segments mutually connected by many bolts.
[0007]
Further, in the prior art shown in FIG. 12, the male connector 202 has a base end even if the male connector 202 can be connected when the shaft core of the male connector 202 and the shaft core of the female connector 204 are misaligned. There is a problem in that the connection is inclined with respect to 205, and a good connection is not achieved.
[0008]
Therefore, the present invention is a connecting device that can be connected by bringing the members to be connected such as the above-mentioned segments close to each other, and can be connected well even if the connecting center is slightly deviated as described above. The object is to provide an apparatus.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 is provided with a storage chamber having a front opening in a casing, and a tapered hole having a tapered surface whose diameter is reduced at the front is formed at the front portion of the storage chamber. A female connecting portion in which the divided female locking member is slidably disposed in the axial direction in the tapered hole, and the female locking member is biased forward by a biasing means; And a male coupling member that is engaged with the male coupling body by inserting the male coupling body through an insertion opening that is open to the female coupling section. A connecting device,
The male connection part is provided on one member to be connected, the female connection part is provided on the other member to be connected, and at least of the male connection body of the male connection part and the casing of the female connection part One is provided so as to be able to move substantially parallel to a direction orthogonal to the axial direction.
[0010]
According to a second aspect of the present invention, a storage chamber having a front opening is provided in the casing, a tapered hole having a tapered surface with a diameter reduced at the front is formed in a front portion of the storage chamber, and the circumferential direction is formed in the tapered hole. A female coupling portion in which a wedge-shaped female locking member divided into a plurality of parts is slidably disposed in the axial direction, and the female locking member is biased forward by a biasing means, and a male coupling body So that the female locking member is locked to the male coupling body by inserting the male coupling body through the insertion opening opened in the female coupling section. Connecting device,
The male connection part is provided on one member to be connected, the female connection part is provided on the other member to be connected, and at least of the male connection body of the male connection part and the casing of the female connection part One is provided so as to be able to move substantially parallel to a direction orthogonal to the axial direction.
[0011]
According to a third aspect of the invention, in the first or second aspect of the invention, at least one of the base of the male connector and the casing of the female connector can be moved substantially in parallel by providing an elastic body on the outer periphery thereof. It is what I did.
[0012]
The invention according to claim 4 is the invention according to claim 3, wherein the base of the male connector having the elastic body or the casing of the female connector having the elastic body is temporarily fixed to a member to be connected. Is.
[0013]
According to a fifth aspect of the present invention, a metal side frame is provided on both of the members to be connected, a hole for connection is formed in the side frame, and the hole is formed inside the side frame of one of the members to be connected. The holding member is arranged around the center, an elastic body is provided on the outer periphery of the holding member, the outer periphery of the elastic body is held by one connected member, and the male connecting body is attached to the holding member by the base. Providing and projecting the tip part out of the side frame through the hole,
A casing is fixed to the inside of the side frame of the other member to be connected, with the hole as a center, a storage chamber having a front opening is provided in the casing, and the front is reduced in diameter at the front portion of the storage chamber. A tapered hole having a tapered surface is formed, and a wedge-shaped female locking member divided into a plurality of circumferential directions is disposed in the tapered hole so as to be slidable in the axial direction, and the female locking member is biased. It is characterized by being biased by the means.
[0014]
According to a sixth aspect of the present invention, a metal side frame is provided on both of the members to be connected, a hole for connection is formed in the side frame, and the hole is formed inside the side frame of one of the members to be connected. The holding member is arranged around the center, and the male connector is provided with its base portion on the holding member and the tip portion protruding outside the side frame through the hole,
Inside the side frame of the other connected member, a casing is arranged around the hole, an elastic body is provided on the outer periphery of the casing, and the outer periphery of the elastic body is held by the other connected member, A storage chamber having a front opening is formed in the casing, a tapered hole having a tapered surface whose diameter is reduced at the front is formed in the front portion of the storage chamber, and a wedge shape divided into a plurality of circumferential directions in the tapered hole The female locking member is slidably disposed in the axial direction, and the female locking member is biased forward by the biasing means.
[0015]
A seventh aspect of the present invention is the male screw according to any one of the first to sixth aspects, wherein a female screw is formed on the inner surface of the female locking member and the outer surface of the male connector is engaged with the female screw. Is formed.
[0016]
The invention according to claim 8 is the invention according to claim 7, wherein the pitch with respect to the nominal diameter of the female screw and the male screw is set smaller than the screw pitch with respect to the nominal diameter of the fine screw defined in JIS.
[0017]
The invention according to claim 9 is the invention according to any one of claims 1 to 6, wherein an annular parallel groove in the circumferential direction is formed on the outer surface of the male connector, and the inner surface of the female locking member is formed. Further, a parallel groove that fits into the parallel groove is formed.
[0018]
The invention according to claim 10 is the invention according to claim 9, wherein the pitch with respect to the nominal diameter of the parallel grooves is set smaller than the thread pitch with respect to the nominal diameter of the fine screw defined in JIS.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the present invention will be described based on the examples shown in FIGS.
1 to 7 show a first embodiment.
[0020]
FIG. 1 shows an example in which the present invention is applied to a segment arranged on a wall surface of a tunnel. The segment 1 shown in FIG. 1 is also connected to the segments 1 and 1 adjacent to each other in the circumferential direction, and further in the axial direction of the tunnel. It is also connected to adjacent segments.
[0021]
The present invention is used as a connecting device for connecting segments adjacent in the axial direction of the tunnel in the above-described tunnel segment.
[0022]
The present invention can also be applied as a connecting device for connecting members other than the above-described tunnel segment, and the present invention is not limited to a connecting device for a tunnel segment.
[0023]
Therefore, the member connected by the connection device of the present invention is hereinafter referred to as a member to be connected.
[0024]
As shown in FIG. 2, the members 2 and 3 to be connected are members in which concrete 6 and 7 are placed inside metal side frames 4 and 5.
[0025]
As shown in FIG. 3, the side frame 4 of one of the members 2 to be connected has a hole 8 formed at the connection position, and a metal cylindrical holding member 9 is provided on the inner surface of the side frame 4 with its shaft. The core is temporarily fixed by being positioned substantially at the center of the hole 8. In the embodiment shown in the figure, the holding member 9 is formed of a nut, the shaft center of the female screw 9a is positioned at a substantially central portion of the hole 8, and the inner diameter of the female screw 9a is set smaller than the inner diameter of the hole 8. Yes.
[0026]
The holding member 9 is temporarily fixed to the inner surface of the side frame 4 by fixing means 10 such as spot welding, and the fixing force of the fixing means 10 is fixed to the holding member 9 in a predetermined radial direction. The fixing means 10 is set so that the holding member 9 is separated from the side frame 4 when a large load is applied. The spot welding 10 as the fixing means is performed at a plurality of locations with appropriate intervals in the circumferential direction of the holding member 9.
[0027]
An elastic body 11 made of an elastic material such as rubber is provided in a fitted state on the entire outer periphery of the holding member 9. The elastic body 11 is formed in a cylindrical shape.
[0028]
The rear end of the female screw 9a is closed by a plug 12.
The holding member 9 is fixed with a base end of a male coupling body 13 formed of a rod-shaped body having a smaller diameter than the inner diameter of the hole 8, and the male coupling body 13 passes through the hole 8 and the side frame. 4 protrudes to the outside. In the embodiment, a male screw 13 a is formed on the base of the male connector 13, and the male screw 13 a is screwed onto the female screw 9 a of the holding member 9 to fix the male connector 13 to the holding member 9. Further, a male screw 13 b is also engraved at the tip of the male connector 13.
[0029]
With the above structure, a space 14 having a predetermined dimension D is formed between the outer peripheral surface of the male connector 13 and the inner peripheral surface of the hole 8.
[0030]
The required number of male connecting portions A having the above-described configuration is provided in the side frame 4 with appropriate intervals.
[0031]
In order to assemble the male connecting portion A, first, the holding member 9 is arranged at a predetermined position inside the side frame 4, and then the reamer 50 inserted from the hole 8 is inserted into the holding member 9 as shown in FIG. In this state, spot welding 10 such as spot welding is performed, and the holding member 9 is temporarily fixed to the side frame. Thereafter, the reamer 50 is removed.
[0032]
Next, the elastic body 11 is fitted to the outer periphery of the holding member 9 and a stopper 12 is attached. Note that the elastic body 11 and the plug 12 may be provided in advance on the holding member 9 before the welding fixing operation.
[0033]
Next, the concrete 6 is placed inside the side frame 4, and the holding member 9, the elastic body 11, and the plug 12 are embedded in the concrete 6. The reamer 50 may be removed after this.
[0034]
Next, the male connector 13 is inserted from the hole 8 and fixed to the holding member 9 by screwing.
Thereby, the male connection part A is comprised.
[0035]
Next, as shown in FIG. 3, a hole 15 is formed in the side frame 5 of the other connected member 3 at a position corresponding to the hole 8 formed in the side frame 4 of the one connected member 2. Has been. The inner diameter of the hole 15 is substantially the same as that of the hole 8.
[0036]
A female connecting portion B is provided on the inner surface of the side frame 5 of the other member 3 to be connected.
[0037]
The casing 16 constituting the female connecting portion B is formed in a cylindrical shape, and a storage chamber 17 is formed therein. The casing 16 is fixed to the inner surface of the side frame 5 by welding 18 or the like with the center of the storage chamber 17 positioned substantially at the center of the hole 15.
[0038]
A taper hole 19 having a tapered surface whose inner diameter gradually increases from the front end side toward the rear is formed at the front portion of the storage chamber 17, and an intermediate portion of the storage chamber 17 is a spring storage portion 20. A female screw 21 is engraved on the inner periphery of the rear portion of the storage chamber 17. An insertion port 22 is formed at the front of the tapered hole 19.
[0039]
On the inner surface of the tapered hole 19, a plurality of sliding guide ridges 23 along the axial direction are formed in the circumferential direction as shown in FIG. The sliding guide protrusion 23 may not be provided.
[0040]
Further, a divided female locking member 24 is slidably arranged in the taper hole 19 in the axial direction. In the embodiment, as shown in FIG. A wedge-shaped female locking member 24 is disposed between the sliding guide ridges 23 so as to be slidable in the axial direction of the casing 16. Further, the outer surface of the wedge-shaped female locking member 24 is formed with a tapered surface 25 along the tapered surface of the tapered hole 19, that is, the outer diameter gradually increases from the tip side to the rear side. Furthermore, a female screw 26 into which the male screw 13b is screwed is formed on the inner peripheral surface of each female locking member 24 in an arc that is centered on the axis of the casing 16 and along the axis. .
[0041]
As described above, the female screw holes are formed by the plurality of female locking members 24, and each female locking member 24 is retracted along the tapered surface 19, so that the female screw holes are expanded in diameter and moved forward. As a result, the diameter of the female screw hole is reduced.
[0042]
At the rear end of the female locking member 24, a spring receiver 27 that is engaged with each female locking member 24 is disposed.
[0043]
A lid plate 29 is screwed onto the female screw 28 at the rear of the casing 16. A spring 30 which is a biasing means is interposed in the spring housing portion 20 in a compressed state between the spring receiver 27 and the cover plate 29, and each female locking member 24 is always held by the biasing force of the spring 30. It is energized to the other side.
[0044]
A plurality of the holes 15 and the female connection parts B are provided at positions facing the male connection part A of the one connected member 2.
[0045]
Further, after fixing the casing 16 of the female connecting part B to the side frame 5, the concrete 7 is placed inside the side frame 5, and the casing 16 is embedded in the concrete 7.
[0046]
The male screw 13b formed on the male connector 13 and the female screw 26 formed on the female locking member 24 have a thread pitch P (refer to FIG. 7) with respect to the nominal diameter of the fine thread that defines JIS. It may be formed smaller than the thread pitch. For example, it may be formed smaller than the value of the thread pitch with respect to the nominal diameter of the metric fine thread defined in JIS B 0207.
[0047]
As an example, when the nominal diameter is M24 (mm), the thread pitch P is 3 mm in the JIS B 0207 metric fine thread, but in the present invention, the thread pitch P is 0.3 mm to 0.8 mm, It is desirable to set it to 0.5 mm.
[0048]
Further, when the nominal diameter is M30 (mm), the screw pitch P is set to 0.3 to 0.8 mm, preferably 0.5 mm.
[0049]
Next, the connecting action of the first embodiment will be described.
First, for example, with respect to the other connected member 3 already arranged at a predetermined position, one connected member 2 is arranged as shown in FIG. 3, and one member 2 is connected to the other connected member 3. Move to the side.
[0050]
At this time, when the axis X1 of the male connector 13 in one connected member 2 substantially coincides with the center X2 of the hole 15 in the other connected member 3, the male connector 13 is It is inserted into the casing 16 through the hole 15.
[0051]
As a result, the male connector 13 is inserted while expanding the screw holes formed by the female locking members 24 by retracting the female locking members 24 against the biasing force of the spring 20. When the side frame 4 of one connected member 2 and the side frame 5 of the other connected member 3 come into contact with each other and the insertion of the male connector 13 is finished (stopped), each female locking member 24 is connected. Is pushed back by the urging force of the spring 30, and the female screw hole diameter formed in each female locking member 24 is reduced by the tapered surfaces 19, 25, so that the female screw 26 of each female locking member 24 is male. It meshes with the external thread 13b of the connecting body 13. As a result, the two members 2 and 3 are connected to each other with their axes X1 and X2 positioned in substantially the same straight line.
That is, by inserting the male connector 13 from the insertion opening opened in the female connector, the female locking member 24 is expanded in diameter, and the female locking member 24 is attached after the male connector 13 is inserted. The urging means 30 is engaged and connected to the male connector 13.
[0052]
Next, both the holes 8 and 15 are originally in a position that matches in design, but the holes 8 and 15 are displaced due to warpage of the plates of the members 2 and 3 to be connected, or the holding member 9 and The assembly position of the casing 16 may be displaced.
[0053]
In such a case, when the axial center X1 of the male connector 13 is shifted to, for example, X3 shown in FIG. 3 with respect to the center X2 of the hole 15 at the time of the connection, the male connector 13 A curved end 13 c at the tip of the hole 15 abuts one end 15 a of the hole 15. Even if this hit occurs, when the connecting member 2 is moved by moving one heavy connecting member 2 to the other connecting member 3 side with a heavy machine, the male connector 13 has an arrow in FIG. A large load in the Y direction acts. When such a large load is applied, the dotted welded portion that is the fixing means 10 is broken by the load, and the holding member 9 compresses the elastic body 11 and moves in the direction of the arrow Y in parallel with the axis X3. It becomes possible. Therefore, the male connector 13 moves parallel to the arrow Y direction and is inserted into the hole 15. By this insertion, both axes X1 and X2 become substantially the same straight line, and the same connection as described above can be performed.
[0054]
At this time, since the elastic body 11 is arranged at the base of the male connector 13, that is, the outer periphery over the entire length of the holding member 9 in the axial direction, the male connector 13 and the holding member 9 are parallel to the axis X1. The male connector 13 can be inserted satisfactorily without being twisted.
[0055]
For example, if the base part of the male connector 13 is fixed and the front side of the male connector 13 swings around the base part, the male connector 13 can be twisted and cannot be inserted satisfactorily. Then there is no such thing.
[0056]
In addition, since the elastic body 13 is formed in an annular shape and is arranged at the base of the male connector 13, that is, the entire circumference of the holding member 9, the male connector 13 can be moved in any direction perpendicular to the axial direction. Even if a load is applied in the direction, the male connector 13 is translated in that direction, and centering is performed.
[0057]
Further, at the time of the connection as described above, the female locking member 24 cannot get over the thread of the male connection body 13 to be finally engaged, and the male connection body 13 has its axial direction. A backlash occurs between the side frames 4 and 5.
[0058]
However, as described above, the thread pitch P of the female thread 26 of the female locking member 24 and the male thread 13b of the male connector 13 is formed smaller than the pitch of fine threads that are normally used in accordance with JIS. Therefore, the play is extremely small.
[0059]
For example, when the nominal diameter is M24 (mm) and the screw pitch P is 2 mm as in the conventional fine thread of JIS B 0207, the gap is 1 to 4 mm as described above, whereas the present invention In the case where the nominal diameter is M24 (mm) as in the above embodiment, the gap is set to 0.25 to 1 mm when the screw pitch P is set to 0.5 mm.
[0060]
Thus, the reduction in the gap can prevent water leakage between the members 2 and 3. Furthermore, even when a sealing material is provided on the members 2 and 3, the cost can be reduced by reducing the sealing material.
[0061]
Further, by making the screw pitch P smaller than that of the conventional one, the radial dimension of the female locking member 24 and the male connector 13 can be made smaller than that of the conventional one. The whole can be downsized, the thickness of the member can be reduced, and the cost of the coupler and the members 2 and 3 can be reduced.
[0062]
Further, when the female screw 26 of the female locking member 24 bites into the male screw 13 a of the male connector 13 by the biasing force of the spring 30, and the force in the pulling direction acts on the male connector 13, the female screw 26. Since the mold locking member 24 bites in, a strong connection state is ensured even if the screw pitch P is small.
[0063]
In the embodiment, the inner surface of the female locking member 24 is a spiral female screw, and the outer surface of the male connector 13 is a helical male screw. Instead of these screws, the male mold is used. The outer surface of the coupling body 13 is formed in a parallel groove formed by forming an annular crest in the circumferential direction and an annular trough in the circumferential direction in parallel, and the inner surface of the female locking member 24 is formed in the crest and trough. It is good also as a parallel groove | channel which consists of a cyclic | annular trough part and peak part fitted to a part. Also in this case, the pitch of the grooves is preferably set as described above.
[0064]
FIG. 6 shows a second embodiment.
In the second embodiment, the members 2 and 3 to be connected in the first embodiment are formed by a steel member (for example, a steel segment) made of a metal plate without placing concrete 6 or 7. It is an example to which the present invention is applied.
[0065]
In FIG. 6, the holding member 9 is temporarily fixed to the side frame 4 by a fixing means 10 such as spot welding on the side of one of the connected members 2, as in the first embodiment. An elastic body 11 is provided on the outer periphery, and a male connector 13 is provided on the holding member 9. An inner frame 40 is fixed to the side frame 4 by welding 41 or the like so as to surround the outer side of the elastic body 11 inside the side frame 4. Concrete 42 is placed on the inner surface of the inner frame 40 and the outer peripheral surface of the elastic body 11, the holding member 9, and the plug 12. Other structures are the same as those in the first embodiment.
[0066]
The other member 3 to be connected has a structure in which the concrete 7 in the first embodiment is not placed, and the other structure is the same as that in the first embodiment.
[0067]
Also in the second embodiment, the same operations and effects as the first embodiment can be exhibited.
FIG. 8 shows a third embodiment.
[0068]
In the third embodiment, the male connector 13 of the above-described embodiment includes a tapered guide portion 51 having a thread-free portion protruding from the side frame 4 and a non-threaded tapered surface having a narrow rear portion behind it. The female coupling member 24 is a female coupling member 24A having an inner surface formed on a tapered tapered surface 53 without a screw. The tapered surface 52 of the male connector 13A and the tapered surface 53 of the female locking member 24 are formed in a tapered surface having a small diameter in the same direction, and the male connecting member 13A is interposed between the female locking members 24. As shown in the above embodiment, the female locking member 24 moves backward, and when the predetermined amount of the male connector 13A is inserted, the female locking member 24 moves forward by the biasing force of the spring 30. Thus, both the members 2 and 3 are connected by engaging with the tapered surface 52 of the male connector 13A.
[0069]
Since the other structure is the same as that of the first embodiment, the same parts as those described above are denoted by the same reference numerals and the description thereof is omitted.
Also in the second embodiment, the same operations and effects as the first embodiment can be exhibited.
[0070]
In each of the first embodiment, the second embodiment, and the third embodiment, the elastic body 11 is disposed on one of the members 2 to be connected, and the male connecting bodies 13 and 13A together with the holding member 9 are arranged in the radial direction. Although temporarily fixed so that it can move, the male connector 13, 13A side is fixed so as not to move to the side plate 4, and the casing 16 on the other connected member 3 side is temporarily moved to the side frame 5 so as to be movable in parallel. You may stop it. That is, the casing 16 is temporarily fixed to the side frame 5 by a fixing means such as spot welding so that the casing 16 is broken by a predetermined load, the elastic body 11 as described above is provided on the outer periphery of the casing 16, and the outside is provided as described above. You may make it hold | maintain with concrete.
[0071]
Further, the elastic body 11 may be provided on both the outer periphery of the holding member 9 and the outer periphery of the casing 16.
[0072]
Therefore, the elastic body 11 may be provided on at least one of the holding member 9 and the casing 16 so that at least one of the male connector 13 and the casing 16 can be translated in the radial direction.
[0073]
Furthermore, if the holding member 9 and the elastic body 11 are arranged at a predetermined position by appropriate means other than spot welding and concrete is placed on the outer periphery thereof, the temporary fixing of the spot welding is not necessary. It is.
[0074]
【The invention's effect】
As described above, according to the present invention, at least one of the male connector of the male connector and the casing of the female connector can be moved substantially in parallel. Can be connected even if the axis of the male coupling body and the axis of the casing are deviated at the start of the connection, and after the connection is completed, the both axes are on the same straight line. And good connection can be achieved.
[Brief description of the drawings]
FIG. 1 is a diagram of a tunnel segment showing an embodiment to which a connecting device of the present invention is applied.
FIG. 2 is a cross-sectional view taken along line EE in FIG.
FIG. 3 is a side sectional view showing a first embodiment of the present invention.
4 is an explanatory view when the holding member in FIG. 3 is assembled. FIG.
5 is a cross-sectional view of the female connecting portion in FIG. 3. FIG.
FIG. 6 is a side sectional view showing a second embodiment of the present invention.
FIG. 7 is a diagram showing a screw pitch in the present invention.
FIG. 8 is a side sectional view showing a third embodiment of the present invention.
FIG. 9 is a diagram showing connection of tunnel segments by a conventional connection device.
10 is a cross-sectional view taken along line FF in FIG.
11 is an enlarged view of the coupling device of FIG.
FIG. 12 is a view showing another conventional coupling device.
[Explanation of symbols]
A Male connection part B Female connection part 2, 3 Member 4, 5 Side frame 6, 7, 42 Concrete 8, 15 Hole 9 Holding member 10 Temporary fixing part 11 Elastic body 13, 13A Male connection body 16 Casing 17 Storage chamber 19 Taper holes 24, 24A Female locking member 30 Biasing means

Claims

A housing chamber having an opening at the tip is provided in the casing, a tapered hole having a tapered surface with a diameter reduced at the tip is formed at the tip of the housing chamber, and the divided female locking member is pivoted in the taper hole. The male mold is composed of a female coupling portion that is slidably disposed in the direction and urges the female locking member forward by the urging means, and a male coupling portion that projects a male coupling body. A coupling device in which a female locking member is locked to a male coupling body by inserting a coupling body from an insertion opening opened in the female coupling portion,
The male connection part is provided on one member to be connected, the female connection part is provided on the other member to be connected, and at least of the male connection body of the male connection part and the casing of the female connection part One coupling device is provided so as to be substantially parallel movable in a direction orthogonal to the axial direction.

A storage chamber having an opening at the front is provided in the casing, a tapered hole having a tapered surface with a diameter reduced at the front is formed at the front of the storage chamber, and a wedge-like shape divided into a plurality of circumferential directions in the taper hole. A female coupling member in which a female locking member is slidably disposed in the axial direction, and the female locking member is biased forward by a biasing means, and a male coupling portion in which a male coupling body is projected. A connecting device in which the female locking member is locked to the male coupling body by inserting the male coupling body through an insertion opening opened in the female coupling portion,
The male connection part is provided on one member to be connected, the female connection part is provided on the other member to be connected, and at least of the male connection body of the male connection part and the casing of the female connection part One coupling device is provided so as to be substantially parallel movable in a direction orthogonal to the axial direction.

The connection device according to claim 1 or 2, wherein at least one of the base of the male connector and the casing of the female connector is provided with an elastic body on an outer periphery thereof so as to be able to move substantially in parallel.

The connecting device according to claim 3, wherein a base of the male connector having the elastic body or a casing of the female connector having the elastic body is temporarily fixed to a member to be connected.

Both members to be connected are provided with metal side frames, holes for connection are formed in the side frames, and holding members are arranged inside the side frames of one of the members to be connected around the hole. An elastic body is provided on the outer periphery of the holding member, the outer periphery of the elastic body is held by one connected member, and the male connector is provided with the base portion on the holding member and the tip portion is passed through the hole. Protruding outside the side frame,
A casing is fixed to the inside of the side frame of the other member to be connected, with the hole as a center, a storage chamber having a front opening is provided in the casing, and the front is reduced in diameter at the front portion of the storage chamber. A tapered hole having a tapered surface is formed, and a wedge-shaped female locking member divided into a plurality of circumferential directions is disposed in the tapered hole so as to be slidable in the axial direction, and the female locking member is biased. A connecting device characterized by being biased to the other side by means.

Both members to be connected are provided with metal side frames, holes for connection are formed in the side frames, and holding members are arranged inside the side frames of one of the members to be connected around the hole. The male connector is provided with its base at the holding member and its tip protruding outside the side frame through the hole,
Inside the side frame of the other connected member, a casing is arranged around the hole, an elastic body is provided on the outer periphery of the casing, and the outer periphery of the elastic body is held by the other connected member, A storage chamber having an opening at the tip is provided in the casing, a tapered hole having a tapered surface whose diameter is reduced at the tip is formed at the tip of the storage chamber, and a wedge shape divided into a plurality of circumferential directions in the taper hole The female locking member is slidably disposed in the axial direction, and the female locking member is biased forward by the biasing means.

The connecting device according to claim 1, wherein a female screw is formed on the inner surface of the female locking member, and a male screw that engages with the female screw is formed on the outer surface of the male connector.

The coupling device according to claim 7, wherein a pitch with respect to a nominal diameter of the female screw and the male screw is set to be smaller than a screw pitch with respect to a nominal diameter of the fine screw defined in JIS.

7. The annular parallel groove in the circumferential direction is formed on the outer surface of the male connector, and the parallel groove that fits into the parallel groove is formed on the inner surface of the female locking member. The coupling device as described.

The coupling device according to claim 9, wherein a pitch with respect to a nominal diameter of the parallel grooves is set to be smaller than a thread pitch with respect to a nominal diameter of a fine screw defined in JIS.