JP5671263B2

JP5671263B2 - Structure

Info

Publication number: JP5671263B2
Application number: JP2010131435A
Authority: JP
Inventors: 一郎有尾; 伸中谷; 泉谷倉; 小野　秀一; 秀一小野; 田中　義和; 義和田中
Original assignee: HOSHIKEI KINZOKU KOGYO CO., LTD.; Japan Construction Machinery and Construction Association
Current assignee: HOSHIKEI KINZOKU KOGYO CO., LTD.; Japan Construction Machinery and Construction Association
Priority date: 2010-06-08
Filing date: 2010-06-08
Publication date: 2015-02-18
Anticipated expiration: 2030-06-08
Also published as: JP2011256586A

Description

本発明は、災害時の応急仮設橋や、橋桁やトンネルの支保工、あるいは潮位上昇や簡易堤防のための水流抑制壁として使用することができる構造体に関する。 The present invention relates to a structure that can be used as an emergency temporary bridge in case of a disaster, a support for bridge girders and tunnels, or a water flow restraint wall for rising tide levels and simple dikes.

地震、大雨、地すべりなどの災害により、道路や橋が破損して、交通路が遮断される場合には、代替の交通路を確保する措置が求められる。このため、近年では、トラック等で災害現場に搬送されて、応急仮設橋として使用できる構造体が提案されている。 When roads and bridges are damaged due to disasters such as earthquakes, heavy rains, and landslides, and traffic routes are blocked, measures to secure alternative traffic routes are required. For this reason, in recent years, a structure that can be used as an emergency bridge by being transported to a disaster site by a truck or the like has been proposed.

上記構造体の例として、特許文献１には、Ｘ字状に交差する２つのフレームからなるフレーム要素を備える構造体が開示されている。構造体は、上記のフレーム要素が一の方向に複数連結されており、各フレーム要素のフレームが連動して回転することで、一の方向に伸縮可能である。 As an example of the structure, Patent Document 1 discloses a structure including a frame element including two frames intersecting in an X shape. A plurality of the frame elements are connected in one direction, and the structure can be expanded and contracted in one direction when the frames of the frame elements rotate in conjunction with each other.

特開２００７−１０７３６９号公報JP 2007-107369 A

特許文献１の構造体を応急仮設橋として使用する際には、特許文献１の構造体は、所定長に伸張された状態で、一端がアンカーにより地盤に固定される。この作業を円滑に進めるためには、各フレーム要素のフレームが回転せずに、構造体の長さが安定して維持される必要がある。 When the structure of Patent Document 1 is used as an emergency temporary bridge, the structure of Patent Document 1 is fixed to the ground by an anchor while being extended to a predetermined length. In order to smoothly perform this operation, the frame of each frame element does not rotate, and the length of the structure needs to be stably maintained.

本発明は、こうした状況に鑑みてなされたものであり、本発明の目的は、複数のフレーム要素のフレームが連動して回転することで伸縮可能な構造体であって、所定長に伸張された状態が維持されることで、設置作業を円滑に行うことのできる構造体を提供することである。 The present invention has been made in view of such circumstances, and an object of the present invention is a structure that can be expanded and contracted by rotating the frames of a plurality of frame elements in conjunction with each other, and has been expanded to a predetermined length. It is providing the structure which can perform installation work smoothly by a state being maintained.

上記目的を達成するため、本発明の第１の観点にかかる構造体は、一の方向に連結される複数のフレーム要素をそれぞれ有する複数のサイドフレームが一体に並設され、前記フレーム要素が、交差部で回動可能にピン結合される２つのフレームから構成されて、各前記フレーム要素のフレームが連動して回転することで、前記サイドフレームが前記一の方向に伸縮可能である構造体であって、各前記フレーム要素には、前記２つのフレームの一方に設けられ、前記２つのフレームが交差することで生じる４つの角のうち、前記一の方向に向かい合う２つの対頂角が所定角度になったときに、前記２つのフレームの他方に突起が干渉するせん断抵抗部材が設けられることを特徴とする。 In order to achieve the above object, in the structure according to the first aspect of the present invention , a plurality of side frames each having a plurality of frame elements connected in one direction are integrally arranged side by side, It is composed of two frames that are pin-coupled so as to be pivotable at the intersection, and the side frames can be expanded and contracted in the one direction as the frames of the frame elements rotate in conjunction with each other. Each of the frame elements is provided on one of the two frames. Of the four corners generated by the intersection of the two frames, two vertical angles facing the one direction become a predetermined angle. when the said other of the projections of the two frames, characterized in that the shear resistance member you interference is provided.

本発明の第２の観点にかかる構造体は、一の方向に連結される複数のフレーム要素をそれぞれ有する複数のサイドフレームが一体に並設され、前記フレーム要素が、交差部で回動可能にピン結合される２つのフレームから構成されて、各前記フレーム要素のフレームが連動して回転することで、前記サイドフレームが前記一の方向に伸縮可能である構造体であって、各前記フレーム要素には、前記２つのフレームが交差することで生じる４つの角のうち、前記一の方向に向かい合う２つの対頂角が所定角度になったときに、前記フレームの回転を停止させる回転停止部材が設けられ、前記回転停止部材は、各前記フレーム要素の前記２つのフレームのうち、一方と一体に形成される突出部材から構成され、前記突出部材は、他方の前記フレームが回転する空間に突出しており、前記２つの対頂角が所定角度になったときに、前記他方のフレームに当接することを特徴とする。 In the structure according to the second aspect of the present invention, a plurality of side frames each having a plurality of frame elements coupled in one direction are integrally arranged side by side, and the frame elements can be rotated at intersections. It is composed of two frames that are pin-coupled, and the frame of each of the frame elements rotates in conjunction with each other so that the side frame can be expanded and contracted in the one direction, and each of the frame elements Is provided with a rotation stopping member for stopping the rotation of the frame when two vertical angles facing the one direction become a predetermined angle among the four angles generated by the intersection of the two frames. the rotation stop member, of the two frames of each of said frame element, is composed of the protruding member formed in one integral with the projecting member, the other of said frame There projects into the space which rotates, when the two vertical angles reaches a predetermined angle, characterized in that it abuts against the other frame.

好ましくは、前記突出部材は、前記一方のフレームの長手方向に対して前記所定角度で傾斜する側面を有する物体から構成されて、前記側面が、前記他方のフレームが回転する空間に突出することを特徴とする。 Preferably, the projecting member includes an object having a side surface inclined at the predetermined angle with respect to a longitudinal direction of the one frame, and the side surface projects into a space in which the other frame rotates. Features.

本発明の第３の観点にかかる構造体は、一の方向に連結される複数のフレーム要素をそれぞれ有する複数のサイドフレームが一体に並設され、前記フレーム要素が、交差部で回動可能にピン結合される２つのフレームから構成されて、各前記フレーム要素のフレームが連動して回転することで、前記サイドフレームが前記一の方向に伸縮可能である構造体であって、各前記フレーム要素には、前記２つのフレームが交差することで生じる４つの角のうち、前記一の方向に向かい合う２つの対頂角が所定角度になったときに、前記フレームの回転を停止させる回転停止部材が設けられ、前記フレームには、交差部近傍の断面積を増加させるスティフナーが設けられることを特徴とする。 In the structure according to the third aspect of the present invention, a plurality of side frames each having a plurality of frame elements coupled in one direction are integrally arranged side by side, and the frame elements can be rotated at an intersection. It is composed of two frames that are pin-coupled, and the frame of each of the frame elements rotates in conjunction with each other so that the side frame can be expanded and contracted in the one direction, and each of the frame elements Is provided with a rotation stopping member for stopping the rotation of the frame when two vertical angles facing the one direction become a predetermined angle among the four angles generated by the intersection of the two frames. The frame is provided with a stiffener that increases the cross-sectional area near the intersection.

好ましくは、前記スティフナーは、前記フレームの交差部近傍に固定されるＴ型鋼によって構成されることを特徴とする。 Preferably, the stiffener is made of a T-shaped steel fixed in the vicinity of an intersecting portion of the frame.

好ましくは、前記フレームは、中空断面部材から構成されて、前記スティフナーは、前記フレームの交差部近傍の空洞内に固定されるＩ型鋼によって構成されることを特徴とする。 Preferably, the frame is made of a hollow cross-section member, and the stiffener is made of I-shaped steel fixed in a cavity near the intersection of the frame.

好ましくは、前記２つの対頂角が所定角度になった状態において、前記２つのフレームの一方における第１位置と、前記２つのフレームの他方における第２位置との間隔を維持する間隔維持手段を、さらに有することを特徴とする。 Preferably, an interval maintaining means for maintaining an interval between a first position in one of the two frames and a second position in the other of the two frames in a state where the two vertical angles are a predetermined angle, It is characterized by having.

本発明の第４の観点にかかる構造体は、一の方向に連結される複数のフレーム要素をそれぞれ有する複数のサイドフレームが一体に並設され、前記フレーム要素が、交差部で回動可能にピン結合される２つのフレームから構成されて、各前記フレーム要素のフレームが連動して回転することで、前記サイドフレームが前記一の方向に伸縮可能である構造体であって、各前記フレーム要素には、前記２つのフレームが交差することで生じる４つの角のうち、前記一の方向に向かい合う２つの対頂角が所定角度になったときに、前記フレームの回転を停止させる回転停止部材が設けられ、前記２つの対頂角が所定角度になった状態において、前記２つのフレームの一方における第１位置と、前記２つのフレームの他方における第２位置との間隔を維持する間隔維持手段を、さらに有し、前記２つのフレームの一方では、前記第１位置に第１貫通孔が形成され、前記他方のフレームでは、前記第２位置に第２貫通孔が形成され、前記間隔維持手段は、前記第１，２貫通孔に係止されるターンバックルから構成されることを特徴とする。 In the structure according to the fourth aspect of the present invention, a plurality of side frames each having a plurality of frame elements coupled in one direction are integrally arranged side by side, and the frame elements can be rotated at an intersection. It is composed of two frames that are pin-coupled, and the frame of each of the frame elements rotates in conjunction with each other so that the side frame can be expanded and contracted in the one direction, and each of the frame elements Is provided with a rotation stopping member for stopping the rotation of the frame when two vertical angles facing the one direction become a predetermined angle among the four angles generated by the intersection of the two frames. In the state where the two vertical angles are a predetermined angle, the interval between the first position in one of the two frames and the second position in the other of the two frames is The gap maintaining means for lifting, further comprising, the two one in the frame, the first through hole formed in said first position, wherein in the other frame, the second through-hole formed in said second position The distance maintaining means is formed of a turnbuckle that is locked to the first and second through holes.

好ましくは、前記サイドフレームは、前記複数のフレーム要素が一対一で相対するように並設されて、各前記サイドフレームでは、前記一の方向に隣り合う前記フレーム要素が、前記フレームの先端部でピン結合されて、該ピン結合に用いられる先端結合軸は、前記サイドフレームの間を延びて、相対する前記フレーム要素の前記フレームの先端部を連結することを特徴とする。 Preferably, the side frames are arranged side by side so that the plurality of frame elements are in a one-to-one relationship, and in each of the side frames, the frame elements adjacent to each other in the one direction are at the tip of the frame. A tip coupling shaft that is pin-coupled and used for the pin coupling extends between the side frames and connects the distal ends of the frames of the opposed frame elements.

本発明の第５の観点にかかる構造体は、一の方向に連結される複数のフレーム要素をそれぞれ有する複数のサイドフレームが一体に並設され、前記フレーム要素が、交差部で回動可能にピン結合される２つのフレームから構成されて、各前記フレーム要素のフレームが連動して回転することで、前記サイドフレームが前記一の方向に伸縮可能である構造体であって、各前記フレーム要素には、前記２つのフレームが交差することで生じる４つの角のうち、前記一の方向に向かい合う２つの対頂角が所定角度になったときに、前記フレームの回転を停止させる回転停止部材が設けられ、前記サイドフレームは、前記複数のフレーム要素が一対一で相対するように並設されて、各前記サイドフレームでは、前記一の方向に隣り合う前記フレーム要素が、前記フレームの先端部でピン結合されて、該ピン結合に用いられる先端結合軸は、前記サイドフレームの間を延びて、相対する前記フレーム要素の前記フレームの先端部を連結し、前記サイドフレームの間には、複数の梁材が前記一の方向に連続して配置されて、前記複数の梁材では、第１の前記先端結合軸に一端部が回動可能に軸支される第１の梁材と、該第１の梁材の他端部と一端部が突き合わされて回動可能にピン結合されるとともに、第２の前記先端結合軸に他端部が回動可能に軸支される第２の梁材とが、隣り合って配置され、前記フレームの回転により前記第１，２の先端結合軸の間隔が変化することに応じて、前記第１，２の梁材は、前記突き合わされる端部が頂点になって傾きが変化して、前記回転停止部材により前記フレームの回転が停止されたときには、前記第１，２の梁材は、略直線状になることを特徴とする。 In the structure according to the fifth aspect of the present invention, a plurality of side frames each having a plurality of frame elements coupled in one direction are integrally arranged side by side, and the frame elements are rotatable at the intersections. It is composed of two frames that are pin-coupled, and the frame of each of the frame elements rotates in conjunction with each other so that the side frame can be expanded and contracted in the one direction, and each of the frame elements Is provided with a rotation stopping member for stopping the rotation of the frame when two vertical angles facing the one direction become a predetermined angle among the four angles generated by the intersection of the two frames. The side frames are arranged side by side so that the plurality of frame elements are in a one-to-one relationship, and in each of the side frames, the side frames are adjacent to each other in the one direction. But are pin-connected at the front end of the frame, the distal end coupling shaft to be used in the pin coupling, extending between the side frames and connecting the distal end portion of the frame opposing the frame element, the side A plurality of beam members are continuously arranged in the one direction between the frames, and one end portion of the plurality of beam members is pivotally supported by the first tip coupling shaft in a rotatable manner. The first beam member and the other end portion and one end portion of the first beam member are brought into contact with each other to be pivotally coupled to each other, and the other end portion is pivotally connected to the second tip coupling shaft. The second beam member to be supported is arranged adjacent to each other, and the distance between the first and second tip coupling shafts is changed by the rotation of the frame. , The abutted end portion becomes the apex and the inclination changes, and the rotation stopping member When the rotation of the frame is stopped, the first and second beam members is characterized by comprising substantially linearly.

好ましくは、前記回転停止部材により前記フレームの回転が停止されたときには、前記第１，２の梁材の突き合わされる端部は、前記第１，２の先端結合軸の間に位置する第３の前記先端結合軸上に載置されることを特徴とする。 Preferably, when the rotation of the frame is stopped by the rotation stop member, the end portions of the first and second beam members that are abutted with each other are the third positions located between the first and second tip coupling shafts. It is mounted on the tip coupling shaft.

好ましくは、前記第１，２の梁材の突き合わされる端部が前記第３の先端結合軸上に載置された状態を固定するための固定手段を有し、前記固定手段は、前記第１，２の梁材の一方に形成される支持軸と、前記第１，２の梁材の他方に形成される係止突起と、一端が前記支持軸に回動可能に軸支される第１の回転部材とから構成され、前記第１の回転部材には、係止突起の外周に対応する形状の凹みが形成されており、前記第１，２の梁材の突き合わされる端部が前記第２の先端結合軸上に載置された状態で、前記第１の回転部材が所定位置に回転されることで、前記第１の回転部材の凹みは、前記係止突起に係合されることを特徴とする。 Preferably, the first and second beam members have fixing means for fixing a state in which the abutted ends of the first and second beam members are placed on the third tip coupling shaft, and the fixing means includes the first A support shaft formed on one of the first and second beam members, a locking projection formed on the other of the first and second beam members, and a first end pivotally supported by the support shaft. The first rotating member is formed with a recess having a shape corresponding to the outer periphery of the locking projection, and the end portions of the first and second beam members to be abutted are formed. When the first rotating member is rotated to a predetermined position while being placed on the second tip coupling shaft, the recess of the first rotating member is engaged with the locking protrusion. It is characterized by that.

好ましくは、前記凹みが前記係止突起に係合された状態において、前記第１の回転部材と、前記第１，２の梁材の突き合わされる端部とは、前記第３の先端結合軸を挟み込むことを特徴とする。 Preferably, in a state in which the recess is engaged with the locking protrusion, the first rotating member and the end portion where the first and second beam members are abutted are the third tip coupling shaft. It is characterized by sandwiching.

好ましくは、前記第１，２の梁材の突き合わされる端部が前記第３の先端結合軸上に載置された状態を固定するための固定手段を有し、前記第１，２の梁材の突き合わされる端部は、梁材結合軸によってピン結合され、前記固定手段は、前記梁材結合軸に回動可能に軸支される第２，３の回転部材から構成され、前記第２の回転部材には、前記先端結合軸の外周における一方側範囲に対応する形状の凹みが形成され、前記第３の回転部材には、前記先端結合軸の外周における他方側範囲に対応する形状の凹みが形成され、前記第１，２の梁材の突き合わされる端部が前記第３の先端結合軸上に載置された状態で、前記第２の回転部材は、所定位置まで回転されることで、前記先端結合軸の外周における一方側範囲に係合し、前記第３の回転部材は、前記第２の回転部材と逆回りに所定位置まで回転されることで、前記先端結合軸の外周における他方側範囲に係合して、前記先端結合軸は、前記第２，３の回転部材によって、外周の略全体が挟み込まれることを特徴とする。 Preferably, the first and second beams have fixing means for fixing a state where end portions of the first and second beam members are placed on the third tip coupling shaft, The ends of the materials to be abutted are pin-coupled by a beam material coupling shaft, and the fixing means is composed of second and third rotating members that are pivotally supported by the beam material coupling shaft. The second rotating member is formed with a recess corresponding to the one side range on the outer periphery of the tip coupling shaft, and the third rotating member has a shape corresponding to the other side range on the outer periphery of the tip coupling shaft. And the second rotating member is rotated to a predetermined position in a state where the end portions of the first and second beam members to be abutted are placed on the third tip coupling shaft. Engaging the one side range on the outer periphery of the tip coupling shaft, and the third rotating part Is rotated to a predetermined position in the reverse direction to the second rotating member to engage with the other side range of the outer periphery of the tip coupling shaft, and the tip coupling shaft rotates the second and third rotations. It is characterized in that substantially the entire outer periphery is sandwiched by the members.

好ましくは、各前記サイドフレームでは、前記一の方向に隣り合う２つの前記フレーム要素が、前記フレームの上端部及び下端部において、前記先端結合軸により結合されており、前記サイドフレームの間には、前記複数の梁材の２組が、それぞれ前記一の方向に配置されて、前記２組の梁材のうち、一方の組の梁材は、前記フレームの下端部を結合する前記先端結合軸によって支持され、他方の組の梁材は、前記フレームの上端部を結合する前記先端結合軸によって支持されることを特徴とする。 Preferably, in each of the side frames, the two frame elements adjacent in the one direction are coupled to each other at the upper end portion and the lower end portion of the frame by the tip coupling shaft, and between the side frames. The two sets of the plurality of beam members are respectively arranged in the one direction, and one of the two sets of the beam members is connected to the lower end portion of the frame. The other set of beam members is supported by the tip coupling shaft that couples the upper end of the frame.

好ましくは、前記サイドフレームの間には、前記一の方向に間隔をおいて、上下方向に延びるポールが複数配置されており、各前記ポールは、前記２組の梁材のうち、一方の組の梁材上に載置されて、他方の組の梁材を支持することを特徴とする。 Preferably, a plurality of poles extending in the vertical direction are arranged between the side frames at intervals in the one direction, and each of the poles is one set of the two sets of beam members. It is mounted on the other beam material and supports the other set of beam materials.

本発明の第６の観点にかかる構造体は、一の方向に連結される複数のフレーム要素をそれぞれ有する複数のサイドフレームが一体に並設され、前記フレーム要素が、交差部で回動可能にピン結合される２つのフレームから構成されて、各前記フレーム要素のフレームが連動して回転することで、前記サイドフレームが前記一の方向に伸縮可能である構造体であって、各前記フレーム要素には、前記２つのフレームが交差することで生じる４つの角のうち、前記一の方向に向かい合う２つの対頂角が所定角度になったときに、前記フレームの回転を停止させる回転停止部材が設けられ、前記サイドフレームは、前記複数のフレーム要素が一対一で相対するように並設されて、各前記フレーム要素は、内側フレームと外側フレームとから構成され、相対する前記フレーム要素では、２つの前記外側フレームの間に、前記一の方向に隣り合う他の前記フレーム要素の２つの内側フレームが差し込まれ、前記２つの内側フレームの先端は、前記外側フレームの縁から延び出て、該内側フレームの先端には、前記外側フレームの外側に突出した後、前記内側フレームの中央側に屈曲する形状を呈して、前記外側フレームの縁に係合する係合部材が設けられ、前記２つの外側フレームの先端は、前記内側フレームの縁から延び出て、第１の結合部材により結合され、前記第１の結合部材は、前記内側フレーム及び前記外側フレームが回転する際に前記内側フレームに当接することを特徴とする。 In the structure according to the sixth aspect of the present invention, a plurality of side frames each having a plurality of frame elements connected in one direction are integrally arranged side by side, and the frame elements can be rotated at an intersection. It is composed of two frames that are pin-coupled, and the frame of each of the frame elements rotates in conjunction with each other so that the side frame can be expanded and contracted in the one direction, and each of the frame elements Is provided with a rotation stopping member for stopping the rotation of the frame when two vertical angles facing the one direction become a predetermined angle among the four angles generated by the intersection of the two frames. , the side frames, said plurality of frame elements is arranged so as to face one-to-one, each of said frame element is composed of an inner frame and outer frame In the opposed frame elements, two inner frames of the other frame elements adjacent in the one direction are inserted between the two outer frames, and the tips of the two inner frames are connected to the outer frames. An engaging member that extends from the edge and protrudes outward from the outer frame at the tip of the inner frame and then bends toward the center of the inner frame to engage with the edge of the outer frame The front ends of the two outer frames extend from the edge of the inner frame and are coupled by a first coupling member, and the first coupling member rotates the inner frame and the outer frame. In this case, the abutment is in contact with the inner frame.

好ましくは、前記２つの内側フレームの先端は、第２の結合部材によって結合されることを特徴とする。 Preferably, the front ends of the two inner frames are coupled by a second coupling member.

好ましくは、各前記サイドフレームにおいて、前記一の方向に隣り合う２つの前記フレーム要素は、一方の前記外側フレームと、他方の前記内側フレームとが、一方側の先端部でピン結合され、該ピン結合に用いられる前記先端結合軸は、前記サイドフレームの間を延びて、前記相対するフレーム要素の前記外側フレームの一方側の先端同士、及び前記内側フレームの一方側の先端同士を連結し、前記第１の結合部材は、前記相対するフレーム要素の前記外側フレームの他方側の先端に結合され、前記第２の結合部材は、前記相対するフレーム要素の前記内側フレームの他方側の先端に結合されることを特徴とする。 Preferably, in each of the side frames, the two frame elements adjacent to each other in the one direction are configured such that one of the outer frame and the other inner frame are pin-coupled at a tip portion on one side, The distal end coupling shaft used for coupling extends between the side frames, and connects the distal ends on one side of the outer frame of the opposing frame elements and the distal ends on one side of the inner frame, The first coupling member is coupled to the other end of the outer frame of the opposing frame element, and the second coupling member is coupled to the other end of the inner frame of the opposing frame element. It is characterized by that.

好ましくは、前記第１の結合部材は、前記相対するフレーム要素の前記外側フレームの両側の先端に結合され、前記第２の結合部材は、前記相対するフレーム要素の前記内側フレームの両側の先端に結合されることを特徴とする。 Preferably, the first coupling member is coupled to tips of both sides of the outer frame of the opposing frame element, and the second coupling member is coupled to tips of both sides of the inner frame of the opposing frame element. It is characterized by being combined.

本発明によれば、対頂角が所定角度になったときに、回転停止部材により、２つのフレームの回転が停止される。これにより、構造体は、所定長になった状態から伸張することが規制される。このため、構造体の設置作業を円滑に行うことができる。 According to the present invention, the rotation of the two frames is stopped by the rotation stop member when the vertical angle becomes a predetermined angle. As a result, the structure body is restricted from extending from a predetermined length. For this reason, the installation work of a structure can be performed smoothly.

また、各フレーム要素に、回転停止部材が設けられていることで、いずれかの回転停止部材が損傷して機能しなくなった場合でも、他の回転停止部材が、フレームの回転を停止させる。これにより、構造体の伸張を確実に止めることができる。 Further, since each frame element is provided with a rotation stop member, even if any rotation stop member is damaged and does not function, another rotation stop member stops the rotation of the frame. Thereby, extension of a structure can be stopped reliably.

本発明の実施の形態１にかかる構造体を示す斜視図である。It is a perspective view which shows the structure concerning Embodiment 1 of this invention. 実施の形態１の構造体の一部を拡大して示す斜視図である。3 is an enlarged perspective view showing a part of the structure according to Embodiment 1. FIG. 内側フレームの断面図である。It is sectional drawing of an inner side frame. 床版を構成する梁材を拡大して示す斜視図である。It is a perspective view which expands and shows the beam material which comprises a floor slab. 構造体の一部を拡大して示す平面図である。It is a top view which expands and shows a part of structure. 構造体を伸縮させるために使用される伸縮機構を示す側面図である。It is a side view which shows the expansion-contraction mechanism used in order to expand / contract a structure. 構造体が伸縮する状態を示す側面図である。It is a side view which shows the state which a structure expands / contracts. 構造体を伸張させる手順を示す側面図である。It is a side view which shows the procedure which expand | extends a structure. 突出部材が形成された部分を拡大して示す斜視図である。It is a perspective view which expands and shows the part in which the protrusion member was formed. 第１の固定手段を示す斜視図である。It is a perspective view which shows a 1st fixing means. 第１の固定手段により、第１，２の梁材の端部を固定する手順を示す概略図である。It is the schematic which shows the procedure which fixes the edge part of the 1st, 2nd beam material by the 1st fixing means. 第２，３の固定手段を示す斜視図である。It is a perspective view which shows the 2nd, 3rd fixing means. 第２，３の固定手段により、第１，２の梁材の端部を固定する手順を示す概略図である。It is the schematic which shows the procedure which fixes the edge part of the 1st, 2nd beam material by the 2nd, 3 fixing means. 結合部材により第１，２の梁材が連結される状態を示す斜視図である。It is a perspective view which shows the state by which the 1st and 2nd beam materials are connected by the coupling member. 結合部材により連結された第１，２の梁材の動きを示す側面図である。It is a side view which shows the motion of the 1st and 2nd beam materials connected by the coupling member. 本発明の実施の形態２の構造体の一部を拡大して示す斜視図である。It is a perspective view which expands and shows a part of structure of Embodiment 2 of this invention. ターンバックルが取り付けられる部分を拡大して示す斜視図である。It is a perspective view which expands and shows the part to which a turnbuckle is attached. 本発明の実施の形態３の構造体を示す概略側面図である。It is a schematic side view which shows the structure of Embodiment 3 of this invention. 実施の形態３の構造体の一部を拡大して示す斜視図である。FIG. 10 is an enlarged perspective view showing a part of a structure according to a third embodiment. 実施の形態３の構造体が橋桁を支持する支保工として使用される状態を示す概略図である。It is the schematic which shows the state in which the structure of Embodiment 3 is used as a support work which supports a bridge girder. 実施の形態３における変形例の構造体を示す概略側面図である。FIG. 10 is a schematic side view showing a structure of a modified example in the third embodiment. 本発明の変形例の構造体の中央部を拡大して示す斜視図である。It is a perspective view which expands and shows the center part of the structure of the modification of this invention. 本発明の実施の形態４の構造体の一部を拡大して示す斜視図である。It is a perspective view which expands and shows a part of structure of Embodiment 4 of this invention. 第１の結合部材及び係合部材を拡大して示す斜視図である。It is a perspective view which expands and shows a 1st coupling member and an engaging member. 本発明の実施の形態５の構造体の一部を拡大して示す斜視図である。It is a perspective view which expands and shows a part of structure of Embodiment 5 of this invention. Ｔ型鋼の設置範囲が変更された内側・外側フレームを示す斜視図である。It is a perspective view which shows the inner side and the outer side frame in which the installation range of T-shaped steel was changed.

以下、この発明の実施の形態１について図面を参照しながら詳細に説明する。なお、図中同一または相当部分には同一符号を付す。 Hereinafter, Embodiment 1 of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals.

図１は、本発明の実施の形態１にかかる構造体１を示す斜視図である。構造体１は、災害時の応急仮設橋として使用される。 FIG. 1 is a perspective view showing a structure 1 according to a first embodiment of the present invention. The structure 1 is used as an emergency temporary bridge in the event of a disaster.

構造体１は、並設される一対のサイドフレーム２と、これらサイドフレーム２の間に配置される床版３とを有する。 The structure 1 includes a pair of side frames 2 arranged side by side and a floor slab 3 disposed between the side frames 2.

各サイドフレーム２は、一の方向に連結される複数のフレーム要素４から構成される。サイドフレーム２は、フレーム要素４が、一対一で相対するように並設される。床版３は、サイドフレーム２の間に連続して配置される複数の梁材５から構成される。梁材５は、板状を呈して、相対する２つのフレーム要素４の間に１つずつ配置される。 Each side frame 2 is composed of a plurality of frame elements 4 connected in one direction. The side frames 2 are juxtaposed so that the frame elements 4 face each other one to one. The floor slab 3 is composed of a plurality of beam members 5 arranged continuously between the side frames 2. The beam members 5 have a plate shape and are arranged one by one between the two opposing frame elements 4.

図１の符号６は、地盤上に設置されるレール架台を示している。レール架台６は、構造体１の一端側が載置される床材７と、床材７の両端から立設して、構造体１の一端側を挟み込む壁材８と、床材７上に固定されて、両側の壁材８を繋ぐ連結材６０とを備える。 The code | symbol 6 of FIG. 1 has shown the rail mount installed on the ground. The rail mount 6 is fixed on the flooring 7 on which the one end side of the structure 1 is placed, the wall material 8 that is erected from both ends of the flooring 7 and sandwiches the one end side of the structure 1, and the flooring 7. And a connecting member 60 that connects the wall members 8 on both sides.

また、レール架台６には、床版３の後方において、踏み板６１（斜線の範囲）が取り付けられる。踏み板６１は、連結材６０に支持されており、人は、踏み板６０の上を床版３に向けて歩行できる。 Further, on the rail mount 6, a tread plate 61 (range of oblique lines) is attached behind the floor slab 3. The tread board 61 is supported by the connecting member 60, and a person can walk on the tread board 60 toward the floor slab 3.

図２は、構造体１の一部を拡大して示す斜視図である。 FIG. 2 is an enlarged perspective view showing a part of the structure 1.

各フレーム要素４は、内側・外側フレーム９，１０から構成される。内側・外側フレーム９，１０は、Ｘ字状に交差しており、交差部９ｃ，１０ｃで回動可能にピン結合される。 Each frame element 4 includes inner and outer frames 9 and 10. The inner and outer frames 9, 10 intersect in an X shape and are pin-coupled so as to be rotatable at the intersecting portions 9c, 10c.

一の方向に隣り合う２つのフレーム要素４は、一方の内側フレーム９の上端部９ａと他方の外側フレーム１０の上端部１０ａとがピン結合される。また、一方の内側フレーム９の下端部９ｂと他方の外側フレーム１０の下端部１０ｂとがピン結合される。これらのピン結合には、相対する２つのフレーム要素４の間（一対のサイドフレーム２の間）を延びる先端結合軸１１が用いられる。 Two frame elements 4 adjacent in one direction have an upper end 9a of one inner frame 9 and an upper end 10a of the other outer frame 10 pin-coupled. Also, the lower end 9b of one inner frame 9 and the lower end 10b of the other outer frame 10 are pin-coupled. For these pin couplings, a tip coupling shaft 11 extending between two opposing frame elements 4 (between a pair of side frames 2) is used.

相対する２つのフレーム要素４では、内側フレーム９の上端部９ａ同士と、内側フレーム９の下端部９ｂ同士と、外側フレーム１０の上端部１０ａ同士と、外側フレーム１０の下端部１０ｂ同士とが、それぞれ共通の先端結合軸１１により連結される。この連結が相対するフレーム要素４の各組で行われることで、一対のサイドフレーム２，２（図１）は一体に連結される。 In the two opposite frame elements 4, the upper end portions 9a of the inner frame 9, the lower end portions 9b of the inner frame 9, the upper end portions 10a of the outer frame 10, and the lower end portions 10b of the outer frame 10 are Each is connected by a common tip coupling shaft 11. A pair of side frames 2 and 2 (FIG. 1) are integrally connected by this connection being performed by each pair of opposing frame elements 4.

また、上記の先端結合軸１１の連結により、構造体１は、構成部材が輪状に連なる閉断面構造を有する。すなわち、相対するフレーム要素４の２つの内側フレーム９と、これらの上端部９ａに連結される先端結合軸１１と、下端部９ｂに連結される先端結合軸１１と、が輪状に連なる。また、相対するフレーム要素４の２つの外側フレーム１０と、これらの上端部１０ａに連結される先端結合軸１１と、下端部１０ｂに連結される先端結合軸１１とが輪状に連なる。 Further, the structure 1 has a closed cross-sectional structure in which the constituent members are connected in a ring shape by the connection of the tip coupling shaft 11 described above. That is, the two inner frames 9 of the opposing frame elements 4, the tip coupling shaft 11 coupled to the upper end portion 9a, and the tip coupling shaft 11 coupled to the lower end portion 9b are connected in a ring shape. Further, the two outer frames 10 of the opposing frame elements 4, the tip coupling shaft 11 coupled to the upper end portion 10a, and the tip coupling shaft 11 coupled to the lower end portion 10b are connected in a ring shape.

図３は、内側フレーム９の断面図である。図３（ａ）は、図２のＡ−Ａ線で切断した断面図であり、内側フレーム９の先端近傍の断面を示す。図３（ｂ）は、図２のＢ−Ｂ線で切断した断面図であり、内側フレーム９の交差部９ｃ近傍の断面を示す。 FIG. 3 is a cross-sectional view of the inner frame 9. FIG. 3A is a cross-sectional view taken along line AA in FIG. 2 and shows a cross section near the tip of the inner frame 9. FIG. 3B is a cross-sectional view taken along line BB in FIG. 2 and shows a cross section near the intersection 9 c of the inner frame 9.

以下、図３を用いて、内側・外側フレーム９，１０の構造について説明する。なお、図３には、外側フレーム１０は示していないが、内側・外側フレーム９，１０の構造は同様であるため、外側フレーム１０も含めて説明する。 Hereinafter, the structure of the inner and outer frames 9, 10 will be described with reference to FIG. Although the outer frame 10 is not shown in FIG. 3, the structure of the inner and outer frames 9 and 10 is the same, so the description will be made including the outer frame 10.

内側・外側フレーム９，１０は、複数の空洞部１２のある中空断面を有する（図３の例では、３室の空洞部１２が設けられている）。 The inner and outer frames 9, 10 have a hollow cross section with a plurality of cavities 12 (in the example of FIG. 3, three cavities 12 are provided).

内側・外側フレーム９，１０の交差部９ｃ，１０ｃ近傍では、スティフナーとしてのＴ型鋼１３及びＩ型鋼１４（図３（ｂ））が設けられて、断面積が増加される。 In the vicinity of the intersections 9c, 10c of the inner and outer frames 9, 10, T-shaped steel 13 and I-shaped steel 14 (FIG. 3B) as stiffeners are provided, and the cross-sectional area is increased.

Ｔ型鋼１３は、フランジ部１３ａが内側・外側フレーム９,１０の縁に溶接されることで、内側・外側フレーム９，１０に固定される。 The T-shaped steel 13 is fixed to the inner and outer frames 9 and 10 by welding the flange portion 13 a to the edges of the inner and outer frames 9 and 10.

Ｉ型鋼１４は、各空洞部１２に挿入される。各Ｉ型鋼１４は、フランジ部１４ａが空洞部１２の上下面に圧着(添溶接)されることで、内側・外側フレーム９，１０に固定される。 The I-shaped steel 14 is inserted into each cavity 12. Each I-shaped steel 14 is fixed to the inner and outer frames 9 and 10 by the flange portions 14 a being pressure-bonded (addition welded) to the upper and lower surfaces of the cavity portion 12.

図４は、床版３を構成する梁材５を拡大して示す斜視図である。 FIG. 4 is an enlarged perspective view showing the beam member 5 constituting the floor slab 3.

梁材５は、一端部５ａ及び他端部５ｂに、複数の突起１５，１６が設けられる。各突起１５，１６には、貫通孔１５ａ，１６ａが形成される。各梁材５では、隣り合う２つの突起（１５，１５）（１６，１６）の間に、他の梁材５の突起１６，１５を１つずつ差し込むことが可能である。 The beam member 5 is provided with a plurality of protrusions 15 and 16 at one end 5a and the other end 5b. The protrusions 15 and 16 are formed with through holes 15a and 16a. In each beam member 5, the projections 16 and 15 of the other beam members 5 can be inserted one by one between two adjacent protrusions (15, 15) (16, 16).

上述の梁材５は、図２に示す先端結合軸１１が用いられて、構造体１に取り付けられる。以下、梁材５の取り付け方法について説明する。 The above-described beam member 5 is attached to the structure 1 using the tip coupling shaft 11 shown in FIG. Hereinafter, a method for attaching the beam member 5 will be described.

図５は、構造体１の一部を拡大して示す平面図である。図５には、一の方向に隣り合って配置される第１，２の梁材５Ａ，５Ｂと、第１，２の梁材５Ａ，５Ｂが連結される第１，２の先端結合軸１１Ａ，１１Ｂと、第１，２の先端結合軸１１Ａ，１１Ｂの間に配置される第３の先端結合軸１１Ｅとが示されている。 FIG. 5 is an enlarged plan view showing a part of the structure 1. FIG. 5 shows first and second beam members 5A and 5B arranged adjacent to each other in one direction, and first and second tip coupling shafts 11A to which the first and second beam members 5A and 5B are connected. , 11B and a third tip coupling shaft 11E disposed between the first and second tip coupling shafts 11A, 11B.

第１の梁材５Ａは、突起１５の貫通孔１５ａに第１の先端結合軸１１Ａが通されることで、一端部５ａが第１の先端結合軸１１Ａに回動可能に軸支される。 The first beam member 5A is pivotally supported by the first tip coupling shaft 11A in such a manner that the first tip coupling shaft 11A is passed through the through hole 15a of the projection 15 so that the first tip coupling shaft 11A is rotatable.

また、第１の梁材５Ａは、突起１６の間に第２の梁材５Ｂの突起１５が差し込まれることで、他端部５ｂが、第２の梁材５Ｂの一端部５ａと、突き合わされる。 Further, the first beam member 5A has the other end portion 5b abutted against the one end portion 5a of the second beam member 5B by inserting the protrusion 15 of the second beam member 5B between the protrusions 16. The

突き合わされた第１，２の梁材５Ａ，５Ｂの他端部５ｂ及び一端部５ａは、貫通孔１６ａ，１５ａに梁材結合軸１７が通されることで、梁材結合軸１７に回動可能に軸支される。第３の先端結合軸１１Ｅは、第１，２の梁材５Ａ，５Ｂの他端部５ｂ及び一端部５ａの下方に位置している。 The other end portion 5b and one end portion 5a of the first and second beam members 5A and 5B which are abutted with each other are rotated by the beam material coupling shaft 17 by passing the beam material coupling shaft 17 through the through holes 16a and 15a. It is pivotally supported. The third tip coupling shaft 11E is located below the other end 5b and the one end 5a of the first and second beam members 5A and 5B.

また、第２の梁材５Ｂは、突起１６の貫通孔１６ａに、第２の先端結合軸１１Ｂが通されることで、他端部５ｂが第２の先端結合軸１１Ｂに回動可能に軸支される。 Further, the second beam member 5B is configured such that the second end coupling shaft 11B is passed through the through-hole 16a of the protrusion 16, so that the other end portion 5b is rotatable about the second distal end coupling shaft 11B. Be supported.

また、第１の先端結合軸１１Ａは、他の組の第２の梁材５Ｂの他端部５ｂを支持する。この他の組の第２の梁材５Ｂは、第１の梁材５Ａの一端側に隣り合って配置されるものであり、突起１６の間に、第１の梁材５Ａの突起１５が差し込まれて、貫通孔１６ａに、第１の先端結合軸１１Ａが通される。 Moreover, 11 A of 1st front-end | tip coupling shafts support the other end part 5b of 2nd beam material 5B of another group. The other set of second beam members 5B is arranged adjacent to one end side of the first beam member 5A, and the protrusions 15 of the first beam member 5A are inserted between the protrusions 16. Thus, the first tip coupling shaft 11A is passed through the through hole 16a.

また、第２の先端結合軸１１Ｂは、他の組の第１の梁材５Ａの一端部５ａを支持する。この他の組の第１の梁材５Ａは、突起１５の間に、第２の梁材５Ｂの突起１６が差し込まれて、貫通孔１５ａに、第２の先端結合軸１１Ｂが通される。 The second tip coupling shaft 11B supports the one end portion 5a of the other first beam member 5A. In the other set of first beam members 5A, the protrusions 16 of the second beam member 5B are inserted between the protrusions 15, and the second tip coupling shaft 11B is passed through the through hole 15a.

図６は、構造体１を伸縮させるために使用される伸縮機構１８を示す側面図である。 FIG. 6 is a side view showing an expansion / contraction mechanism 18 used for expanding / contracting the structure 1.

伸縮機構１８は、レール架台６（図１）の床材７上に設けられる。この伸縮機構１８は、螺旋棒１９と、固定支持部２０と、スライド部２１とを有している。 The telescopic mechanism 18 is provided on the floor material 7 of the rail mount 6 (FIG. 1). The expansion / contraction mechanism 18 has a spiral rod 19, a fixed support portion 20, and a slide portion 21.

螺旋棒１９は、外面に螺旋が形成されて、一の方向に延びている。固定支持部２０は、床版３と一体の板材から構成されて、螺旋棒１９の一端部１９ａを回動自在に支持する。スライド部２１は、一の方向に間隔をあけて相対する２つの板材２２と、これら板材２２をつなぐ連結材２３とを有する。２つの板材２２は、床材７上に載置される。各板材２２には、螺旋棒１９の他端部１９ｂが貫通され、該貫通孔の孔壁には螺旋が形成されて、螺旋棒１９の外面に形成された螺旋と噛み合う。この噛み合いにより、スライド部２１は、螺旋棒１９の回転により、床材７上を移動可能である。スライド部２１の移動方向は、螺旋棒１９の回転方向に応じて変更される。例えば、螺旋棒１９を時計回りに回転させたときには、スライド部２１は、一の方向の他端側に移動し、螺旋棒１９を反時計回りに回転させたときには、スライド部２１は、一の方向の一端側に移動する。 The spiral rod 19 has a spiral formed on the outer surface and extends in one direction. The fixed support part 20 is comprised from the board | plate material integral with the floor slab 3, and supports the one end part 19a of the spiral bar 19 rotatably. The slide portion 21 includes two plate members 22 that are opposed to each other with an interval in one direction, and a connecting member 23 that connects these plate members 22. The two plate materials 22 are placed on the floor material 7. The other end portion 19b of the spiral rod 19 is penetrated through each plate member 22, and a spiral is formed on the hole wall of the through hole, and meshes with the spiral formed on the outer surface of the spiral rod 19. By this engagement, the slide portion 21 can move on the flooring 7 by the rotation of the spiral rod 19. The moving direction of the slide part 21 is changed according to the rotating direction of the spiral bar 19. For example, when the spiral rod 19 is rotated clockwise, the slide portion 21 moves to the other end side in one direction, and when the spiral rod 19 is rotated counterclockwise, the slide portion 21 is Move to one end in the direction.

図６の符号４Ａは、構造体１の一端側の基端に配置されるフレーム要素を示している。このフレーム要素４Ａでは、外側フレーム１０Ａの長さが、他のフレーム要素４の外側フレーム１０の長さに比して、２分の１程度に設定される。外側フレーム１０Ａは、その上端１０ａが内側フレーム９Ａと交差してピン結合される。また、図６の符号１１Ｃ，１１Ｄは、相対するフレーム要素４Ａ（図１参照）を連結する第４，５の先端結合軸を示している。 Reference numeral 4 A in FIG. 6 indicates a frame element arranged at the base end on one end side of the structure 1. In this frame element 4A, the length of the outer frame 10A is set to about one half of the length of the outer frame 10 of the other frame elements 4. The outer frame 10A is pin-coupled with its upper end 10a intersecting the inner frame 9A. Reference numerals 11C and 11D in FIG. 6 indicate fourth and fifth tip coupling shafts that connect the opposing frame elements 4A (see FIG. 1).

第４，５の先端結合軸１１Ｃ，１１Ｄは、相対する２つのフレーム要素４Ａの間を延びている。このうち、先端結合軸１１Ｃは、内側フレーム９Ａの下端部９ｂに結合される。固定支持部２０は、先端結合軸１１Ｃの中央部に当接するように配置され、先端結合軸１１Ｃを一の方向の他端側に押圧する。 The fourth and fifth tip coupling shafts 11C and 11D extend between the two opposing frame elements 4A. Among these, the tip coupling shaft 11C is coupled to the lower end portion 9b of the inner frame 9A. The fixed support portion 20 is disposed so as to contact the central portion of the tip coupling shaft 11C, and presses the tip coupling shaft 11C toward the other end side in one direction.

先端結合軸１１Ｄは、外側フレーム１０Ａの下端部１０ｂと、フレーム要素４Ａと隣り合う他のフレーム要素４の内側フレーム９の下端部９ｂとに結合される。２つの板材２２は、先端結合軸１１Ｄの中央部を挟み込んでいる。 The tip coupling shaft 11D is coupled to the lower end portion 10b of the outer frame 10A and the lower end portion 9b of the inner frame 9 of another frame element 4 adjacent to the frame element 4A. The two plate members 22 sandwich the center portion of the tip coupling shaft 11D.

図７は、構造体１が伸縮する状態を示す側面図である。図７（ａ）は、構造体１が収縮した状態を示している。図７（ｂ）は、構造体１が伸張した状態を示している。 FIG. 7 is a side view showing a state in which the structure 1 expands and contracts. FIG. 7A shows a state where the structure 1 is contracted. FIG. 7B shows a state where the structure 1 is extended.

図７（ａ）の状態から、例えば螺旋棒１９を時計回りに回転させると、スライド部２１は、構造体１の他端側に向けて、床版３上を移動する。この間、２つの板材２２（図６）に挟み込まれた先端結合軸１１Ｄは、スライド部２１とともに、構造体１の他端側に移動し、一方、先端結合軸１１Ｃは、固定支持部２０に固定されて停止した状態にある。この結果、フレーム要素４では、先端結合軸１１Ｃ，１１Ｄの間隔Ｋ１が大きくなって、内側・外側フレーム９Ａ，１０Ａが回転する。この際には、各フレーム要素４が先端結合軸１１により一体に連結されていることで、各フレーム要素４の内側・外側フレーム９，１０も、上記の回転に連動して、回転する。この回転は、内側・外側フレーム９，１０がＸ字状に交差することで生じる４つの角のうち、一の方向に向かい合う２つの対頂角Ｔが小さくなる方向に生じる。この回転が生じた結果、構造体１は、一の方向に伸張して、図７（ｂ）の状態になる。 When the spiral rod 19 is rotated clockwise, for example, from the state of FIG. 7A, the slide portion 21 moves on the floor slab 3 toward the other end side of the structure 1. During this time, the tip coupling shaft 11D sandwiched between the two plate members 22 (FIG. 6) moves to the other end side of the structure 1 together with the slide portion 21, while the tip coupling shaft 11C is fixed to the fixed support portion 20. Has been stopped. As a result, in the frame element 4, the distance K1 between the tip coupling shafts 11C and 11D is increased, and the inner and outer frames 9A and 10A are rotated. At this time, since the frame elements 4 are integrally connected by the tip coupling shaft 11, the inner and outer frames 9, 10 of each frame element 4 also rotate in conjunction with the above rotation. This rotation occurs in a direction in which the two vertical angles T facing one direction become smaller among the four corners generated by the inner and outer frames 9, 10 intersecting in an X shape. As a result of this rotation, the structure 1 expands in one direction and becomes the state of FIG.

また、各フレーム要素４の内側・外側フレーム９，１０が回転する際には、第１，２の先端結合軸１１Ａ，１１Ｂの間隔Ｋ２が変化する。この間隔変化により、第１，２の梁材５Ａ，５Ｂ（図５）は、突き合わされる端部５ｂ，５ａが頂点になって傾きが変化する。 Further, when the inner and outer frames 9, 10 of each frame element 4 rotate, the interval K2 between the first and second tip coupling shafts 11A, 11B changes. Due to this change in the distance, the inclinations of the first and second beam members 5A and 5B (FIG. 5) change with the ends 5b and 5a being abutted at the apexes.

具体的には、上述のように、各内側・外側フレーム９，１０が対頂角Ｔが小さくなる方向に回転する際には、第１，２の梁材５Ａ，５Ｂは、端部５ｂ，５ａが下側に移動するように、傾きが変化する。これにより、床板３の起伏は大きくなる。 Specifically, as described above, when the inner and outer frames 9 and 10 are rotated in the direction in which the vertical angle T is reduced, the first and second beam members 5A and 5B have end portions 5b and 5a. The inclination changes so as to move downward. Thereby, the undulation of the floor board 3 becomes large.

一方、図７（ｂ）の状態から、例えば螺旋棒１９を反時計回りに回転させると、スライド部２１は、構造体１の一端側に向けて床版３上を移動する。この間、先端結合軸１１Ｄは、スライド部２１とともに構造体１の一端側に移動し、先端結合軸１１Ｃは停止した状態にある。この結果、フレーム要素４では、先端結合軸１１Ｃ，１１Ｄの間隔Ｋ１が小さくなって、内側・外側フレーム９Ａ，１０Ａは、上記伸張時と逆方向に回転する。そして、この回転に連動して、各フレーム要素４の内側・外側フレーム９，１０は、対頂角Ｔが大きくなる方向に回転する。この回転が生じた結果、構造体１は一の方向に収縮して、図７（ａ）の状態になる。 On the other hand, when the spiral rod 19 is rotated, for example, counterclockwise from the state of FIG. 7B, the slide portion 21 moves on the floor slab 3 toward one end side of the structure 1. During this time, the tip coupling shaft 11D moves to the one end side of the structure 1 together with the slide portion 21, and the tip coupling shaft 11C is in a stopped state. As a result, in the frame element 4, the distance K1 between the tip coupling shafts 11C and 11D is reduced, and the inner and outer frames 9A and 10A rotate in the direction opposite to that during the extension. In conjunction with this rotation, the inner and outer frames 9, 10 of each frame element 4 rotate in the direction in which the vertical angle T increases. As a result of this rotation, the structure 1 contracts in one direction and becomes the state of FIG.

また、各内側・外側フレーム９，１０が対頂角Ｔが大きくなる方向に回転する際には、第１，２の梁材５Ａ，５Ｂは、端部５ｂ，５ａが上側に移動するように、傾きが変化する。これにより、床板３の起伏は小さくなる。 Further, when the inner and outer frames 9, 10 are rotated in the direction in which the vertical angle T is increased, the first and second beam members 5A, 5B are inclined so that the end portions 5b, 5a move upward. Changes. Thereby, the undulation of the floor board 3 becomes small.

図８は、構造体１を伸張させる手順を示す側面図である。構造体１を応急架設橋として使用する際には、以下の設置作業が行われる。 FIG. 8 is a side view showing a procedure for extending the structure 1. When the structure 1 is used as an emergency bridge, the following installation work is performed.

まず、トラック等により、構造体１及びレール架台６を一方の岸（以下、自岸と記す）に搬送する。 First, the structure 1 and the rail mount 6 are transported to one bank (hereinafter referred to as a self bank) by a truck or the like.

次に、レール架台６を、アンカー等により、自岸の地盤Ｊ１に固定する（図８（ａ））。 Next, the rail mount 6 is fixed to the ground J1 on the own shore by an anchor or the like (FIG. 8A).

次に、構造体１の他端側が対岸を向くように、構造体１の一端側をレール架台６上に載置し、伸縮機構１８（図６）を先端結合軸１１Ｃ，１１Ｄにセットする。なお、構造体１とレール架台６とは、予め一体にされていてもよい。 Next, one end of the structure 1 is placed on the rail mount 6 so that the other end of the structure 1 faces the opposite bank, and the expansion / contraction mechanism 18 (FIG. 6) is set on the tip coupling shafts 11C and 11D. Note that the structure 1 and the rail mount 6 may be integrated in advance.

次に、螺旋棒１９を回転させることで（図７の例では時計回りに回転）、構造体１を伸張させる。これにより、構造体１の他端が対岸に向けて延びていく。この間、内側・外側フレーム９，１０は、対頂角Ｔ（図８（ｂ））が小さくなる方向に回転し、これに応じて、梁材５の傾きが変化することで、床版３の起伏は徐々に小さくなる。 Next, the structure 1 is extended by rotating the spiral rod 19 (in the example of FIG. 7, rotating clockwise). Thereby, the other end of the structure 1 extends toward the opposite bank. During this time, the inner and outer frames 9 and 10 rotate in the direction in which the vertical angle T (FIG. 8B) decreases, and the inclination of the beam member 5 changes accordingly. Gradually get smaller.

そして、構造体１の他端が対岸に到達した時点で、螺旋棒１９の回転を停止する。この際には、床版３は、起伏の小さな状態で自岸から対岸まで延びている。 Then, when the other end of the structure 1 reaches the opposite bank, the rotation of the spiral rod 19 is stopped. At this time, the floor slab 3 extends from the shore to the opposite shore with a small undulation.

次に、構造体１の他端を、支点支持手段あるいはアンカー等により、対岸の地盤Ｊ２に固定する。以上の作業が終了することで、構造体１は、応急仮設橋として使用できる状態になる。 Next, the other end of the structure 1 is fixed to the ground J2 on the opposite bank by a fulcrum support means or an anchor. By completing the above operations, the structure 1 can be used as an emergency temporary bridge.

本実施の形態では、構造体１を地盤Ｊ２に固定する作業が円滑に行えるように、内側・外側フレーム９，１０の回転を停止させるための部材として、突出部材５６Ａ，５６Ｂ（図２）が設けられる。 In the present embodiment, projecting members 56A and 56B (FIG. 2) are used as members for stopping the rotation of the inner and outer frames 9 and 10 so that the work of fixing the structure 1 to the ground J2 can be performed smoothly. Provided.

図９は、突出部材５６Ａ，５６Ｂが形成された部分を拡大して示す斜視図である。突出部材５６Ａ，５６Ｂは、それぞれ直方体の物体から構成される。突出部材５６Ａは、内側フレーム９の交差部９ｃの縁に形成され、突出部材５６Ｂは、外側フレーム１０の交差部１０ｃの縁に形成される。 FIG. 9 is an enlarged perspective view showing a portion where the protruding members 56A and 56B are formed. The projecting members 56A and 56B are each composed of a rectangular parallelepiped object. The protruding member 56A is formed at the edge of the intersecting portion 9c of the inner frame 9, and the protruding member 56B is formed at the edge of the intersecting portion 10c of the outer frame 10.

突出部材５６Ａは、内側フレーム９の長手方向に対して、所定角度ほど傾斜する側面５６０を有する。側面５６０は、外側フレーム１０が回転する空間に突出しており、対頂角Ｔが所定角度になったときに、外側フレーム１０の縁に当接する。 The protruding member 56 A has a side surface 560 that is inclined by a predetermined angle with respect to the longitudinal direction of the inner frame 9. The side surface 560 protrudes into a space in which the outer frame 10 rotates, and abuts against the edge of the outer frame 10 when the vertical angle T becomes a predetermined angle.

突出部材５６Ｂは、外側フレーム９の長手方向に対して、所定角度ほど傾斜する側面５６１を有する。側面５６１は、内側フレーム１０が回転する空間に突出しており、対頂角Ｔが所定角度になったときに（側面５６０が外側フレーム１０の縁に当接するときに）、内側フレーム１０の縁に当接する。 The protruding member 56 B has a side surface 561 that is inclined at a predetermined angle with respect to the longitudinal direction of the outer frame 9. The side surface 561 protrudes into a space in which the inner frame 10 rotates, and contacts the edge of the inner frame 10 when the vertical angle T reaches a predetermined angle (when the side surface 560 contacts the edge of the outer frame 10). .

上記の側面５６０，５６１の当接により、内側・外側フレーム９，１０の回転は停止され、構造体１は、所定長に延びた状態が維持される。これにより、構造体１は、形状が安定するとともに、全体の剛性が高められ、耐力が向上する。 By the contact of the side surfaces 560 and 561, the rotation of the inner and outer frames 9 and 10 is stopped, and the structure 1 is maintained in a state of extending to a predetermined length. As a result, the structure 1 has a stable shape, increased overall rigidity, and improved proof stress.

また、突出部材５６Ａ，５６Ｂにより内側・外側フレーム９，１０の回転が停止されたときには、図２に示すように、第１，２の梁材５Ａ，５Ｂは略直線状になる。またさらに、第１，２の梁材５Ａ，５Ｂの突き合わされた端部５ｂ，５ａは、第１，２の先端結合軸１１Ａ，１１Ｂの間にある第３の先端結合軸１１Ｅ上に載置される。 When the rotation of the inner and outer frames 9, 10 is stopped by the projecting members 56A, 56B, the first and second beam members 5A, 5B are substantially linear as shown in FIG. Furthermore, the butted ends 5b and 5a of the first and second beam members 5A and 5B are placed on a third tip coupling shaft 11E between the first and second tip coupling shafts 11A and 11B. Is done.

本実施の形態では、第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａを、第３の先端結合軸１１Ｅ上に固定するための固定手段が設けられる。 In the present embodiment, fixing means for fixing the end portions 5b, 5a of the first and second beam members 5A, 5B on the third tip coupling shaft 11E is provided.

図１０は、上記固定手段の一例としての第１の固定手段２４を示す斜視図である。第１の固定手段２４は、第１の梁材５Ａに形成される支持軸２５と、第２の梁材５Ｂに形成される係止突起２６と、支持軸２５に一端２７ａが回動可能に軸支される第１の回転部材２７とから構成される。 FIG. 10 is a perspective view showing a first fixing means 24 as an example of the fixing means. The first fixing means 24 includes a support shaft 25 formed on the first beam member 5A, a locking projection 26 formed on the second beam member 5B, and an end 27a that is rotatable on the support shaft 25. The first rotating member 27 is pivotally supported.

係止突起２６は、第２の梁材５Ｂの内部に挿入される部分（図示せず）を有している。該挿入部分は、図示しないバネにより付勢される。このバネは、係止突起２６の先端を指で押すことで縮めることができる。このバネの収縮により、係止突起２６は、Ａ方向に移動して、第２の梁材５Ｂに挿入される部分が長くなる。この状態から、係止突起２６の先端から指を離すと、バネが初期の長さに復帰することで、係止突起２６は、Ｂ方向に移動して、初期位置に戻る。 The locking projection 26 has a portion (not shown) inserted into the second beam member 5B. The insertion portion is biased by a spring (not shown). This spring can be contracted by pushing the tip of the locking projection 26 with a finger. Due to the contraction of the spring, the locking projection 26 moves in the A direction, and the portion inserted into the second beam member 5B becomes longer. When the finger is released from the tip of the locking projection 26 from this state, the spring returns to the initial length, so that the locking projection 26 moves in the B direction and returns to the initial position.

第１の回転部材２７の他端２７ｂには、凹み２８が形成される。凹み２８は、係止突起２６の外周に対応する形状を呈している。第１の回転部材２７の中間部２７ｃは円弧状に湾曲している。この湾曲の向きは、一端２７ａが他端２７ｂよりも第２の梁材５Ｂ側に位置している状態（図１０の状態）では、上方に凸になっている。 A recess 28 is formed in the other end 27 b of the first rotating member 27. The recess 28 has a shape corresponding to the outer periphery of the locking protrusion 26. The intermediate portion 27c of the first rotating member 27 is curved in an arc shape. The direction of the curve is convex upward in a state where the one end 27a is positioned closer to the second beam member 5B than the other end 27b (the state shown in FIG. 10).

図１１は、第１の固定手段２４により、第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａを固定する手順を示す概略図である。 FIG. 11 is a schematic view showing a procedure for fixing the end portions 5b, 5a of the first and second beam members 5A, 5B by the first fixing means 24. As shown in FIG.

第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａが第３の先端結合軸１１Ｅ上に載置される前では、第１の回転部材２７は、図示しない係止手段により、第１の梁材５Ａに係止された状態にある（図１１（ａ））。 Before the end portions 5b, 5a of the first and second beam members 5A, 5B are placed on the third tip coupling shaft 11E, the first rotating member 27 is moved by the locking means (not shown) to the first It is in a state of being locked to the beam member 5A (FIG. 11A).

第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａが第３の先端結合軸１１Ｅ上に載置された際には（図１１（ｂ））、第１の回転部材２７の係止を解除する。 When the end portions 5b and 5a of the first and second beam members 5A and 5B are placed on the third tip coupling shaft 11E (FIG. 11B), the first rotating member 27 is locked. Is released.

次に、係止突起２６を指で押してＡ方向に移動させた状態で、第１の回転部材２７を、Ｃ方向（第１，２の梁材５Ａ，５Ｂに対して第３の先端結合軸１１Ｅが存在する側を通過する方向）に回転させる（図１１（ｂ））。この回転は、凹み２８が係止突起２６の位置にくるまで行われる。 Next, in a state where the locking protrusion 26 is pushed with the finger and moved in the A direction, the first rotating member 27 is moved in the C direction (the third tip coupling shaft with respect to the first and second beam members 5A and 5B). It is rotated in the direction that passes through the side where 11E exists (FIG. 11B). This rotation is performed until the recess 28 comes to the position of the locking projection 26.

凹み２８が係止突起２６の位置にきたときには、第１の回転部材２７の回転を停止させて、係止突起２６の先端から指を離す。これにより、係止突起２６は、Ｂ方向に移動して、初期位置に復帰することで、凹み２８に係合する（図１１（ｃ））。この係合により、第１，２の梁材５Ａ，５Ｂは、支持軸２５と係止突起２６の位置関係が変わる横方向の動きが規制される。 When the recess 28 reaches the position of the locking projection 26, the rotation of the first rotating member 27 is stopped and the finger is released from the tip of the locking projection 26. Thereby, the latching protrusion 26 moves in the B direction and returns to the initial position, thereby engaging with the recess 28 (FIG. 11C). By this engagement, the first and second beam members 5A and 5B are restricted from moving in the lateral direction in which the positional relationship between the support shaft 25 and the locking projection 26 changes.

また、係止突起２６が凹み２８に係合した状態では、第３の先端結合軸１１Ｅは、第１の回転部材２７の中間部２７ｃと、第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａとに挟み込まれる。この挟み込みにより、第１，２の梁材５Ａ，５Ｂは、端部５ｂ，５ａと第３の先端結合軸１１Ｅとが離れる上下方向の動きが規制される。以上の第１の固定手段２４による動きの規制により、第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａは、第３の先端結合軸１１Ｅ上に固定される。 Further, in a state where the locking projection 26 is engaged with the recess 28, the third tip coupling shaft 11E has the intermediate portion 27c of the first rotating member 27 and the end portions of the first and second beam members 5A and 5B. 5b and 5a. By this sandwiching, the first and second beam members 5A and 5B are restricted from moving in the vertical direction in which the end portions 5b and 5a are separated from the third tip coupling shaft 11E. Due to the restriction of movement by the first fixing means 24, the end portions 5b and 5a of the first and second beam members 5A and 5B are fixed on the third tip coupling shaft 11E.

図１２は、第１の固定手段２４に代えて使用される第２，３の固定手段２９，３０を示す斜視図である。 FIG. 12 is a perspective view showing second and third fixing means 29 and 30 used in place of the first fixing means 24.

第２の固定手段２９は、第２，３の回転部材３１，３２から構成される。第２，３の回転部材３１，３２は、略円弧状に湾曲しており、この湾曲により、凹み３３，３４が形成される。第２の回転部材３１の凹み３３は、第３の先端結合軸１１Ｅの外周の一方側範囲に対応した形状を呈する。第３の回転部材３２の凹み３４は、第３の先端結合軸１１Ｅの外周の他方側範囲に対応した形状を呈する。 The second fixing means 29 includes second and third rotating members 31 and 32. The second and third rotating members 31 and 32 are curved in a substantially arc shape, and dents 33 and 34 are formed by this curvature. The recess 33 of the second rotating member 31 has a shape corresponding to the one side range of the outer periphery of the third tip coupling shaft 11E. The recess 34 of the third rotating member 32 has a shape corresponding to the other side range of the outer periphery of the third tip coupling shaft 11E.

第２，３の回転部材３１，３２は、突起１５，１６の貫通孔１５ａ，１６ａ（図５）を通過した梁材結合軸１７の先端に、一端３１ａ，３２ａが回動可能に支持される。 The second and third rotating members 31 and 32 are rotatably supported at one ends 31a and 32a at the distal ends of the beam material coupling shafts 17 that have passed through the through holes 15a and 16a (FIG. 5) of the protrusions 15 and 16, respectively. .

図１２では、第２，３の回転部材３１，３２の他端３１ｂ，３２ｂが、梁材結合軸１７の下方にある状態が示されている。この状態では、正面視で他端３１ａ，３２ａが重なり、凹み３３，３４により、第３の先端結合軸１１Ｅが通過可能な空間が構成される。 FIG. 12 shows a state where the other ends 31 b and 32 b of the second and third rotating members 31 and 32 are below the beam material coupling shaft 17. In this state, the other ends 31a and 32a overlap in a front view, and the recesses 33 and 34 constitute a space through which the third tip coupling shaft 11E can pass.

第３の固定手段３０は、第１の梁材５Ａに形成される支持軸３６と、第２の梁材５Ｂに形成される係止突起３７と、略直線状を呈する第４の回転部材３８とから構成される。 The third fixing means 30 includes a support shaft 36 formed on the first beam member 5A, a locking projection 37 formed on the second beam member 5B, and a fourth rotating member 38 having a substantially linear shape. It consists of.

係止突起３７は、第２の梁材５Ｂの内部に挿入される部分（図示せず）を有している。該挿入部分は、図示しないバネにより付勢される。このバネは、係止突起３７の先端を指で押すことで縮めることができ、この収縮により、係止突起３７は、Ａ方向に移動して、第２の梁材５Ｂに挿入される部分が長くなる。この状態から、係止突起３７の先端から指を離すと、バネが初期の長さに復帰することで、係止突起３７は、Ｂ方向に移動して、初期位置に戻る。 The locking projection 37 has a portion (not shown) inserted into the second beam member 5B. The insertion portion is biased by a spring (not shown). This spring can be contracted by pushing the tip of the locking projection 37 with a finger. Due to this contraction, the locking projection 37 moves in the A direction, and the portion inserted into the second beam member 5B is not moved. become longer. When the finger is released from the tip of the locking projection 37 from this state, the spring returns to the initial length, so that the locking projection 37 moves in the B direction and returns to the initial position.

第４の回転部材３８は、一端３８ａが支持軸３６に回動可能に軸支される。また、第４の回転部材３８の他端３８ｂには、凹み３９が形成される。凹み３９は、係止突起３７の外周に対応する形状を呈している。 One end 38 a of the fourth rotating member 38 is pivotally supported by the support shaft 36. A recess 39 is formed in the other end 38 b of the fourth rotating member 38. The recess 39 has a shape corresponding to the outer periphery of the locking protrusion 37.

図１３は、第２，３の固定手段２９，３０により、第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａを固定する手順を示す概略図である。 FIG. 13 is a schematic diagram showing a procedure for fixing the end portions 5b and 5a of the first and second beam members 5A and 5B by the second and third fixing means 29 and 30. FIG.

第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａが第３の先端結合軸１１Ｅ上に載置される前では、第２の回転部材３２と第４の回転部材３８とは、図示しない係止手段により、第１の梁材５Ａに係止された状態にある。また、第３の回転部材３１は、図示しない係止手段により、第２の梁材５Ｂに係止された状態にある（図１３（ａ））。 Before the end portions 5b and 5a of the first and second beam members 5A and 5B are placed on the third tip coupling shaft 11E, the second rotating member 32 and the fourth rotating member 38 are illustrated. It is in a state of being locked to the first beam member 5A by the locking means that does not. Further, the third rotating member 31 is locked to the second beam member 5B by locking means (not shown) (FIG. 13A).

第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａが第３の先端結合軸１１Ｅ上に載置された際には（図１３（ｂ））、第２〜４の回転部材３１，３２，３８の係止を解除する。 When the end portions 5b, 5a of the first and second beam members 5A, 5B are placed on the third tip coupling shaft 11E (FIG. 13B), the second to fourth rotating members 31, The lock | rock of 32,38 is cancelled | released.

次に、第２の回転部材３１をＣ方向に回転させ、また、第３の回転部材３２をＣ方向とは逆のＤ方向に回転させる（図１３（ｂ））。これにより、図１３（ｃ）のように、第２の回転部材３１の凹み３３は、第３の先端結合軸１１Ｅの外周の一方側範囲に係合する。また、第３の回転部材３２の凹み３４は、第３の先端結合軸１１の外周の他方側範囲に係合する。以上の係合により、第２，３の回転部材３１，３２は、第３の先端結合軸１１Ｅの外周全体を挟み込んだ状態になり、第１，２の梁材５Ａ，５Ｂは、第３の先端結合軸１１Ｅから離れる上下方向の動きが規制される。 Next, the second rotating member 31 is rotated in the C direction, and the third rotating member 32 is rotated in the D direction opposite to the C direction (FIG. 13B). Accordingly, as shown in FIG. 13C, the recess 33 of the second rotating member 31 engages with one side range of the outer periphery of the third tip coupling shaft 11E. Further, the recess 34 of the third rotating member 32 engages with the other side range of the outer periphery of the third tip coupling shaft 11. By the above engagement, the second and third rotating members 31 and 32 are in a state of sandwiching the entire outer periphery of the third tip coupling shaft 11E, and the first and second beam members 5A and 5B are in the third state. The vertical movement away from the tip coupling shaft 11E is restricted.

次に、係止突起３７を指で押して、Ａ方向に移動させた状態で、第４の回転部材３８を、Ｅ方向（第３の先端結合軸１１Ｅに対して第１，２の梁材５Ａ，５Ｂが存在する側を通過する方向）に回転させる（図１３（ｃ））。この回転は、凹み３９が係止突起３７の位置にくるまで行われる。 Next, in a state where the locking projection 37 is pushed with a finger and moved in the A direction, the fourth rotating member 38 is moved in the E direction (the first and second beam members 5A with respect to the third tip coupling shaft 11E). , 5B (direction passing the side where 5B exists) is rotated (FIG. 13C). This rotation is performed until the recess 39 comes to the position of the locking projection 37.

凹み３９が係止突起３７の位置にきた際には、第４の回転部材３８の回転を停止して、係止突起３７の先端から指を離す。これにより、係止突起３７は、Ｂ方向に移動して、初期位置に復帰する（図１３（ｄ））。この結果、凹み３９は係止突起３７に係合した状態になる。この係合により、第１，２の梁材５Ａ，５Ｂは、支持軸３６と係止突起３７の位置関係が変わる横方向の動きが規制される。 When the recess 39 reaches the position of the locking projection 37, the rotation of the fourth rotating member 38 is stopped and the finger is released from the tip of the locking projection 37. As a result, the locking protrusion 37 moves in the B direction and returns to the initial position (FIG. 13D). As a result, the recess 39 is engaged with the locking projection 37. By this engagement, the first and second beam members 5A and 5B are restricted from moving in the lateral direction in which the positional relationship between the support shaft 36 and the locking projection 37 changes.

以上の第２，３の固定手段２９，３０による動きの規制により、第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａは、第３の先端結合軸１１Ｅ上に固定される。 The end portions 5b and 5a of the first and second beam members 5A and 5B are fixed on the third tip coupling shaft 11E by the restriction of movement by the second and third fixing means 29 and 30 described above.

なお、凹み３３，３４が第３の先端結合軸１１Ｅに係合した後において、第２，３の回転部材３１，３２がＣ，Ｄ方向と逆方向に回転しないようにすることで、第２，３の回転部材３１，３２によっても、横方向の動きを規制することができる。 The second and third rotating members 31 and 32 are prevented from rotating in the direction opposite to the C and D directions after the recesses 33 and 34 are engaged with the third tip coupling shaft 11E. , 3 can also restrict lateral movement.

本実施の形態の構造体１によれば、内側・外側フレーム９，１０が対頂角Ｔが大きくなる方向に回転するときに、一の方向に長さが延びる。そして、対頂角Ｔが所定角度になったときには、突出部材５６Ａ，５６Ｂ（図２，９）により、内側・外側フレーム９，１０の回転が停止される。これにより、構造体１は、所定長になった状態から伸張することが規制されるため、構造体１の設置作業を円滑に行うことができる。 According to the structure 1 of the present embodiment, when the inner and outer frames 9 and 10 rotate in the direction in which the vertical angle T increases, the length extends in one direction. When the vertical angle T becomes a predetermined angle, the rotation of the inner and outer frames 9 and 10 is stopped by the protruding members 56A and 56B (FIGS. 2 and 9). As a result, the structure 1 is restricted from extending from a predetermined length, so that the installation work of the structure 1 can be performed smoothly.

また、突出部材５６Ａ，５６Ｂが、各フレーム要素４に設けられることで、いずれかの突出部材５６Ａ，５６Ｂが内側・外側フレーム９，１０との接触で損傷して機能しなくなった場合でも、他の突出部材５６Ａ，５６Ｂが、内側・外側フレーム９，１０の回転を停止させる。これにより、構造体１の伸張を確実に止めることができる。 Further, by providing the projecting members 56A and 56B to each frame element 4, even if any of the projecting members 56A and 56B is damaged due to contact with the inner / outer frames 9 and 10, the other functions. The protruding members 56A and 56B stop the rotation of the inner and outer frames 9, 10. Thereby, extension of structure 1 can be stopped reliably.

また、突出部材５６Ａ，５６Ｂが、内側フレーム９の長手方向から所定角度傾斜する側面５６０，５６１（図９）を有し、この側面５６０，５６１が外側フレーム１０や内側フレーム９に当接することで、内側・外側フレーム９，１０の回転が停止される。これにより、側面５６０，５６１の傾斜角度を調整することで、内側・外側フレーム９，１０の回転停止位置を調整できる。つまり、側面５６０，５６１の傾斜角度を調整することで、構造体１の伸張が止まる長さを、任意に設定できる。 Further, the projecting members 56A and 56B have side surfaces 560 and 561 (FIG. 9) that are inclined at a predetermined angle from the longitudinal direction of the inner frame 9, and the side surfaces 560 and 561 are in contact with the outer frame 10 and the inner frame 9. The rotation of the inner and outer frames 9, 10 is stopped. Thereby, the rotation stop positions of the inner and outer frames 9, 10 can be adjusted by adjusting the inclination angles of the side surfaces 560, 561. That is, by adjusting the inclination angle of the side surfaces 560 and 561, the length at which the expansion of the structure body 1 can be arbitrarily set.

また、先端結合軸１１が、隣り合う２つのフレーム要素４の内側・外側フレーム９，１０の結合とともに、相対する２つのフレーム要素４の連結にも用いられることで、構造体１の部品点数は少なく抑えられる。 In addition, the tip coupling shaft 11 is used for coupling the two adjacent frame elements 4 together with the coupling of the inner and outer frames 9 and 10 of the two adjacent frame elements 4, so that the number of parts of the structure 1 can be reduced. It can be reduced.

また、構造体１は、構成部材が輪状に連なる閉断面構造を有することで、高い剛性を有して、外力の作用による変形が生じにくい。 In addition, the structure 1 has a closed cross-sectional structure in which the constituent members are connected in a ring shape, so that the structure 1 has high rigidity and hardly deforms due to the action of an external force.

また、構造体１を応急仮設橋として使用する際には、床版３が荷重を受けることで、内側フレーム９の交差部９ｃ近傍に剪断力が加えられるが、Ｉ型鋼１４又はＴ型鋼１３（図３）の設置により、内側フレーム９の交差部９ｃ近傍における断面積が増加されることで、交差部９ｃ近傍に生じる応力は小さくなる。これにより、構造体１に生じる変形は小さく抑えられる。 Further, when the structure 1 is used as an emergency temporary bridge, a shearing force is applied to the vicinity of the intersection 9c of the inner frame 9 when the floor slab 3 receives a load, but the I-shaped steel 14 or the T-shaped steel 13 ( The installation of FIG. 3) increases the cross-sectional area of the inner frame 9 in the vicinity of the intersection 9c, thereby reducing the stress generated in the vicinity of the intersection 9c. Thereby, the deformation | transformation which arises in the structure 1 is suppressed small.

また構造体１では、内側・外側フレーム９，１０の回転に応じて、サイドフレーム２の延長が変わり、これと共に、梁材５の傾きが変化することで、床版３の延長も変わる。つまり、内側・外側フレーム９，１０の回転操作（伸縮機構１８の螺旋棒１９の回転操作）を行うことで、構造体１の全体が伸縮する。よって、構造体１を応急仮設橋に使用した場合には、構造体１を対岸まで延ばした時点で、対岸に至る通路が床版３により構築される。このため、災害現場等で代替の交通路が求められる場合、この要求に迅速に対応することができる。 In the structure 1, the extension of the side frame 2 changes according to the rotation of the inner and outer frames 9, 10, and the extension of the floor slab 3 also changes as the inclination of the beam member 5 changes. That is, the entire structure 1 expands and contracts by performing the rotation operation of the inner and outer frames 9 and 10 (the rotation operation of the spiral rod 19 of the expansion / contraction mechanism 18). Therefore, when the structure 1 is used for an emergency temporary bridge, a passage leading to the opposite bank is constructed by the floor slab 3 when the structure 1 is extended to the opposite bank. For this reason, when an alternative traffic route is required at a disaster site or the like, it is possible to quickly respond to this request.

また、内側・外側フレーム９，１０の回転が停止されて、構造体１が所定長に延びた状態では、第１，２の梁材５Ａ，５Ｂが略直線状になり（図２）、床版３は略平坦になる。これにより、上記長さにある構造体１を、応急仮設橋として使用することで、移動の容易な通路が確保される。 When the rotation of the inner and outer frames 9, 10 is stopped and the structure 1 is extended to a predetermined length, the first and second beam members 5A, 5B are substantially straight (FIG. 2), and the floor The plate 3 becomes substantially flat. Thereby, the path | route easy to move is ensured by using the structure 1 in the said length as an emergency temporary bridge.

第１，２の梁材５Ａ，５Ｂは、内側・外側フレーム９，１０の回転が停止されたときには、突き合わされる端部５ｂ，５ａが、第３の先端結合軸１１Ｅ上に載置される（図２）。これにより、第１，２の梁材５Ａ，５Ｂは、これらを合わせた範囲の両端と中央の位置において、第１，２，３の先端結合軸１１Ａ，１１Ｂ，１１Ｅに支持された状態になる。よって、内側・外側フレーム９，１０の回転が停止されて、構造体１が所定長に延びた状態では、床版３の平坦な状態が安定して維持される。 In the first and second beam members 5A and 5B, when the rotation of the inner and outer frames 9 and 10 is stopped, the end portions 5b and 5a to be abutted are placed on the third tip coupling shaft 11E. (FIG. 2). As a result, the first and second beam members 5A and 5B are supported by the first, second and third tip coupling shafts 11A, 11B and 11E at both ends and the center of the combined range. . Therefore, when the rotation of the inner and outer frames 9 and 10 is stopped and the structure 1 is extended to a predetermined length, the flat state of the floor slab 3 is stably maintained.

また、内側・外側フレーム９，１０の回転が停止されたときには、上述のように、第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａは、第３の先端結合軸Ｅ上に載置される。この状態において、第１〜３の固定手段２４，２９，３０による固定を行わない場合には、外力の作用時に、第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａは、第３の先端結合軸Ｅから分離する動きを生じ得る。このため、第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａから第３の先端結合軸Ｅに伝達される力は小さく抑えられ、上記外力の作用により、内側・外側フレーム９，１０に損傷が生じることを防止できる。 When the rotation of the inner and outer frames 9, 10 is stopped, the end portions 5b, 5a of the first and second beam members 5A, 5B are placed on the third tip coupling shaft E as described above. Placed. In this state, when the first to third fixing means 24, 29, and 30 are not fixed, the end portions 5b and 5a of the first and second beam members 5A and 5B are third when the external force is applied. Can be moved away from the tip coupling axis E. For this reason, the force transmitted from the end portions 5b, 5a of the first and second beam members 5A, 5B to the third tip coupling shaft E is kept small, and the inner and outer frames 9, 10 are caused by the action of the external force. Can be prevented from being damaged.

また、第３の先端結合軸１１Ｅが、第１，２の梁材５Ａ，５Ｂの支持手段として用いられることで、部品点数を少なく抑える上で有利になる。 Further, since the third tip coupling shaft 11E is used as a support means for the first and second beam members 5A and 5B, it is advantageous in reducing the number of parts.

また、第１〜３の固定手段２４，２９，３０（図１０，１２）を用いて、第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａを第３の先端結合軸１１Ｅ上に固定した場合には、床版３の平坦な状態が確実に維持される。 Further, the end portions 5b, 5a of the first and second beam members 5A, 5B are placed on the third tip coupling shaft 11E using the first to third fixing means 24, 29, 30 (FIGS. 10, 12). When fixed, the flat state of the floor slab 3 is reliably maintained.

なお本実施の形態では、第１の梁材５Ａと、第２の梁材５Ｂとは、図１４に示す結合部材７０が用いられて、連結されてもよい。 In the present embodiment, the first beam member 5A and the second beam member 5B may be coupled using the coupling member 70 shown in FIG.

結合部材７０は、本体部７１と、突起７２，７３とを備える。本体部７１は、第１，２の梁材５Ａ，５Ｂの幅と略同一の長さを有する柱状体である。突起は、本体部７１の一方の側部７１ａに形成される。突起７３は、本体部７１の他方の側部７１ｂに形成される。この結合部材７０では、隣り合う２つの突起（７２，７２）（７３，７３）の間に、梁材５の突起１６，１５を１つずつ差し込むことが可能である。また突起７２，７３には、貫通孔７２ａ，７３ａが形成される。 The coupling member 70 includes a main body 71 and protrusions 72 and 73. The main body 71 is a columnar body having a length substantially the same as the width of the first and second beam members 5A and 5B. The protrusion is formed on one side 71 a of the main body 71. The protrusion 73 is formed on the other side 71 b of the main body 71. In this coupling member 70, the projections 16 and 15 of the beam member 5 can be inserted one by one between two adjacent projections (72, 72) (73, 73). The protrusions 72 and 73 are formed with through holes 72a and 73a.

結合部材７０を用いて第１，２の梁材５Ａ，５Ｂを連結する際には、２つの突起７２の間に、第１の梁材５Ａの突起１６が一つずつ差し込まれて、貫通孔７２ａ，１６ａに、第１の梁材結合軸１７Ａが通される。また、２つの突起７３の間に、第２の梁材５Ｂの突起１５が差し込まれて、貫通孔７３ａ，１５ａに、第２の梁材結合軸１７Ｂが通される。 When connecting the first and second beam members 5A and 5B using the coupling member 70, the protrusions 16 of the first beam member 5A are inserted one by one between the two protrusions 72, and the through-holes are inserted. The first beam connecting shaft 17A is passed through 72a and 16a. Further, the projection 15 of the second beam member 5B is inserted between the two projections 73, and the second beam member coupling shaft 17B is passed through the through holes 73a and 15a.

図１５は、結合部材７０により連結された第１，２の梁材５Ａ，５Ｂの動きを示す側面図である。内側・外側フレーム９，１０が回転する際には、第１，２の梁材５Ａ，５Ｂは、結合部材７０を頂点として傾きが変化する（図１５（ａ））。また、突出部材５６Ａ，５６Ｂ（図２）との接触により内側・外側フレーム９，１０の回転が停止されたときには、結合部材７０は、第３の先端結合軸１１Ｅ上に載置されて（図１５（ｂ））、第１，２の梁材５Ａ，５Ｂは略直線状になる。 FIG. 15 is a side view showing the movement of the first and second beam members 5A and 5B connected by the connecting member 70. FIG. When the inner and outer frames 9 and 10 rotate, the inclinations of the first and second beam members 5A and 5B change with the coupling member 70 as a vertex (FIG. 15A). When the rotation of the inner and outer frames 9, 10 is stopped by contact with the projecting members 56A, 56B (FIG. 2), the coupling member 70 is placed on the third tip coupling shaft 11E (FIG. 15 (b)), the first and second beam members 5A and 5B are substantially linear.

上記の結合部材７０を用いて、第１，２の梁材５Ａ，５Ｂを連結した場合には、第１，２の梁材５Ａ，５Ｂの傾き変化の自由度が増す。例えば、第１，２の梁材５Ａ，５Ｂのうち、一方が止まっているときでも、他方は、結合部材７０をヒンジとして傾きを変化することが可能である。これにより、第１，２の梁材５Ａ，５Ｂの傾き変化が生じないことで、内側・外側フレーム９，１０の回転が停止する虞れは小さくなり、構造体１を所望の長さに調整する上で有利になる。 When the first and second beam members 5A and 5B are connected using the coupling member 70, the degree of freedom in changing the inclination of the first and second beam members 5A and 5B is increased. For example, even when one of the first and second beam members 5A and 5B is stopped, the other can change the inclination with the coupling member 70 as a hinge. Thereby, since there is no change in the inclination of the first and second beam members 5A and 5B, the possibility that the rotation of the inner and outer frames 9 and 10 stops is reduced, and the structure 1 is adjusted to a desired length. This is advantageous.

次に、本発明の実施の形態２について説明する。実施の形態２の構造体４１は、内側・外側フレーム９，１０の回転が停止された状態（構造体が所定長になった状態）を維持するために、後述のターンバックル４２（間隔維持手段）を設けたものである。 Next, a second embodiment of the present invention will be described. The structure 41 of the second embodiment has a turnbuckle 42 (interval maintaining means) described later in order to maintain the state in which the rotation of the inner and outer frames 9, 10 is stopped (the structure has a predetermined length). ).

図１６は、実施の形態２の構造体４１の一部を拡大して示す斜視図である。図１７は、ターンバックル４２が取り付けられる部分を拡大して示す斜視図である。 FIG. 16 is an enlarged perspective view showing a part of the structure 41 of the second embodiment. FIG. 17 is an enlarged perspective view showing a portion to which the turnbuckle 42 is attached.

本実施の形態では、内側フレーム９の交差部９ｃ近傍における第１の位置に、貫通孔４３が形成される。図１７の例では、貫通孔４３は、Ｔ型鋼１３のウエブ部１３ｂに形成される。 In the present embodiment, a through hole 43 is formed at a first position in the vicinity of the intersection 9c of the inner frame 9. In the example of FIG. 17, the through hole 43 is formed in the web portion 13 b of the T-shaped steel 13.

また、外側フレーム１０の交差部１０ｃ近傍における第２の位置には、貫通孔４４が形成される。図１７の例では、貫通孔４３は、外側フレーム１０の縁に設けられる突起４５に形成される。突起４５は、内側・外側フレーム９，１０の回転時に、内側フレーム９と接触しないように設けられている。 Further, a through hole 44 is formed at a second position in the vicinity of the intersecting portion 10 c of the outer frame 10. In the example of FIG. 17, the through hole 43 is formed in a protrusion 45 provided on the edge of the outer frame 10. The protrusion 45 is provided so as not to contact the inner frame 9 when the inner and outer frames 9 and 10 are rotated.

ターンバックル４２は、突出部材５６Ａ，５６Ｂにより内側・外側フレーム９，１０の回転が停止された状態（対頂角Ｔが所定角度になった状態）で、内側・外側フレーム９，１０に取り付けられる。この取り付けは、一方のボルト４６のフック４６ａを、貫通孔４３に係止し、他方のボルト４７のフック４７ａを、貫通孔４４に係止することで行われる。 The turnbuckle 42 is attached to the inner and outer frames 9 and 10 in a state where the rotation of the inner and outer frames 9 and 10 is stopped by the projecting members 56A and 56B (a state where the vertical angle T is a predetermined angle). This attachment is performed by locking the hook 46 a of one bolt 46 to the through hole 43 and locking the hook 47 a of the other bolt 47 to the through hole 44.

本実施の形態によれば、ターンバックル４２が、貫通孔４３，４４が形成される第１、２位置の間の距離ｄを維持することで、内側・外側フレーム９，１０は、対頂角Ｔが大きくなる方向に回転することが規制される。このため、対頂角Ｔが所定角度になった状態、つまり構造体４１が所定長になった状態は、安定して維持される。これにより、構造体４１の設置作業を、より一層円滑に行えるようになる。また、ターンバックル４２が取り付けられることで、構造体４１は形状が固定されて、構造体４１に生じる振動が抑制される。 According to the present embodiment, the turnbuckle 42 maintains the distance d between the first and second positions where the through holes 43 and 44 are formed, so that the inner and outer frames 9 and 10 have the vertical angle T. Rotation in the increasing direction is restricted. For this reason, the state where the vertical angle T becomes a predetermined angle, that is, the state where the structure 41 has a predetermined length is stably maintained. Thereby, the installation work of the structure 41 can be performed more smoothly. Further, by attaching the turnbuckle 42, the shape of the structure 41 is fixed, and the vibration generated in the structure 41 is suppressed.

次に、本発明の実施の形態３について説明する。図１８は、実施の形態３の構造体４８を示す概略側面図である。図１９は、実施の形態３の構造体４８の一部を拡大して示す斜視図である。実施の形態３の構造体４８は、応急仮設橋や支保工として使用されるものであり、サイドフレーム２の間に、複数の梁材５が、２組上下に配置される。 Next, a third embodiment of the present invention will be described. FIG. 18 is a schematic side view showing the structure 48 of the third embodiment. FIG. 19 is an enlarged perspective view showing a part of the structure 48 of the third embodiment. The structure 48 according to the third embodiment is used as an emergency temporary bridge or a support work, and a plurality of beam members 5 are arranged vertically between the side frames 2.

上記２組のそれぞれは、実施の形態１で示した第１，２の梁材５Ａ，５Ｂが、一の方向に順次連続して配置されたものである。 In each of the above two sets, the first and second beam members 5A and 5B shown in the first embodiment are sequentially arranged in one direction.

下側の組では、第１，２の梁材５Ａ，５Ｂが、内側・外側フレーム９，１０の下端部９ｂ，１０ｂに結合される第１，２先端結合軸１１Ａ，１１Ｃに支持される。 In the lower set, the first and second beam members 5A and 5B are supported by the first and second tip coupling shafts 11A and 11C coupled to the lower end portions 9b and 10b of the inner and outer frames 9 and 10, respectively.

上側の組では、第１，２の梁材５Ａ，５Ｂが、内側・外側フレーム９，１０の上端部９ａ，１０ａに結合される第１，２先端結合軸１１Ａ，１１Ｃに支持される。 In the upper group, the first and second beam members 5A and 5B are supported by the first and second tip coupling shafts 11A and 11C coupled to the upper end portions 9a and 10a of the inner and outer frames 9 and 10, respectively.

以上の構成により、内側・外側フレーム９，１０が回転する際には、上側及び下側の第１，２先端結合軸１１Ａ，１１Ｂの間隔が変化することで、各組の第１，２の梁材５Ａ，５Ｂの傾きは変化する。そして、突出部材５６Ａ，５６Ｂとの接触により、内側・外側フレーム９，１０の回転が停止されたときには、各組の第１，２の梁材５Ａ，５Ｂは、略直線状になる。この際、一方の組の第１，２の梁材５Ａ，５Ｂは、第３先端結合軸１１Ｅ上に載置される。これにより、下側の組の梁材５は、安定して直線状態に維持される。 With the above configuration, when the inner and outer frames 9 and 10 are rotated, the distance between the upper and lower first and second tip coupling shafts 11A and 11B is changed. The inclination of the beam members 5A and 5B changes. When the rotation of the inner and outer frames 9, 10 is stopped by contact with the projecting members 56A, 56B, the first and second beam members 5A, 5B of each set are substantially linear. At this time, one set of the first and second beam members 5A and 5B is placed on the third tip coupling shaft 11E. As a result, the lower set of beam members 5 is stably maintained in a linear state.

図１９の符号４９は、相対するフレーム要素４の間（サイドフレーム２の間）に配置される２つのポールを示している。これらポール４９は、下側の組の梁材５上に載置されて、上端が上側の組の梁材５に接する（具体的には、第１，２の梁材５Ａ，５Ｂの端部５ｂ，５ａに接する）。また、２つのポール４９は、所定の間隔をあけて配置され、これらの間を人や車が通過できる。 Reference numeral 49 in FIG. 19 indicates two poles disposed between the opposing frame elements 4 (between the side frames 2). These poles 49 are placed on the lower set of beam members 5 and their upper ends are in contact with the upper set of beam members 5 (specifically, end portions of the first and second beam members 5A and 5B). 5b and 5a). The two poles 49 are arranged at a predetermined interval, and a person or a vehicle can pass between them.

本実施の形態では、サイドフレーム２の間に、２つのポール４９の組が、一の方向に間隔をおいて、複数の箇所に配置される。これにより、上側の組の梁材５は、安定して直線状態に維持される。なお、上側の組は、第１，２の梁材５Ａ，５Ｂが押し合う抵抗力によっても、梁材５の直線状態が維持される。なお、上側の組の梁材５を支持する部材を、例えば上側の第３の先端結合軸１１Ｅに取り付けることで、ポール４９は省略され得る。 In the present embodiment, a set of two poles 49 is arranged between the side frames 2 at a plurality of locations with a gap in one direction. Thereby, the upper set of beam members 5 is stably maintained in a straight line state. In the upper group, the linear state of the beam member 5 is also maintained by the resistance force with which the first and second beam members 5A and 5B are pressed. The pole 49 can be omitted by attaching a member that supports the upper set of beam members 5 to, for example, the upper third tip coupling shaft 11E.

本実施の形態の構造体４８を、応急仮設橋として使用する場合には、２組の梁材により、２つの通路が上下に確保される。また、２組の梁材がそれぞれ直線状に維持されることで、２つの通路は、それぞれ通行が容易なものとなる。 When the structure 48 of the present embodiment is used as an emergency temporary bridge, two paths are secured up and down by two sets of beam members. In addition, since the two sets of beam members are each maintained in a straight line, the two passages are easy to pass.

また、構造体４８が支保工として使用される際には、構造体４８は、一の方向が上下に向いて、各組の梁材５が直線状になるように設置される。この場合、梁材５は、直線状に連なることで、圧縮力に抗する突っ張りとして機能する。これにより、構造体４８に生じる変形は小さく抑えられる。 Further, when the structure 48 is used as a support work, the structure 48 is installed so that one set of the beam members 5 is in a vertical direction and each set of beam members 5 is linear. In this case, the beam member 5 functions as a tension against the compressive force by being connected in a straight line. Thereby, the deformation | transformation which arises in the structure 48 is suppressed small.

また、各組の梁材５がそれぞれ直線状を呈することや、突出部材５６Ａ，５６Ｂが内側・外側フレーム９，１０の回転を規制することで、先端結合軸１１の間隔は維持される。これにより、構造体４８は、圧縮力が作用した際にも、所定長に延びた状態が安定して維持される。 Further, the distance between the tip coupling shafts 11 is maintained by the fact that each set of beam members 5 has a linear shape and the protruding members 56A and 56B restrict the rotation of the inner and outer frames 9 and 10. Thereby, the structure 48 is stably maintained in a state of extending to a predetermined length even when a compressive force is applied.

図２０は、実施の形態３の構造体４８が橋桁３９を支持する支保工として使用される状態を示す概略図である。 FIG. 20 is a schematic view showing a state in which the structure 48 according to the third embodiment is used as a support for supporting the bridge girder 39.

構造体４８を上記の支保工として使用する場合には、以下の手順により、構造体４８は設置される。まず、フレーム要素４が連結される一の方向が、上下に向くように、構造体４８を地盤Ｊ３上に固定する。次に、先端結合軸１１の間隔を変化させることで、構造体４８を上方に伸張させる。この伸張は、梁材５が略直線状になるまで行われる。この伸張が行われた後では、構造体４８の上端に、岸から延び出させた橋桁３９を連結する。 When the structure 48 is used as the above-mentioned support work, the structure 48 is installed by the following procedure. First, the structure 48 is fixed on the ground J3 so that one direction in which the frame elements 4 are connected is directed upward and downward. Next, the structure 48 is extended upward by changing the distance between the tip coupling shafts 11. This extension is performed until the beam member 5 becomes substantially linear. After this extension, the bridge girder 39 extended from the shore is connected to the upper end of the structure 48.

上述のように設置された構造体４８には、略直線状に連続する梁材５が、圧縮力に抗する突っ張りとして機能する。これにより、構造体４８に生じる変形は小さく抑えられる。 In the structure 48 installed as described above, the beam member 5 that is substantially linearly continuous functions as a tension against the compressive force. Thereby, the deformation | transformation which arises in the structure 48 is suppressed small.

また、梁材５が略直線状を呈することや、突出部材５６Ａ，５６Ｂ（図１９）が内側・外側フレーム９，１０の回転を規制することで、先端結合軸１１の間隔は維持される。これにより、構造体４８は、圧縮力が作用されても、所定長に延びた状態が維持される。 Moreover, the space | interval of the front-end | tip coupling axis | shaft 11 is maintained because the beam material 5 exhibits substantially linear shape, and protrusion member 56A, 56B (FIG. 19) controls rotation of the inner side / outer frame 9,10. Thereby, the structure 48 is maintained in a state extending to a predetermined length even when a compressive force is applied.

なお、構造体４８が支保工として使用される場合には、梁材５は、板状の部材に限らず、柱状を呈する部材によっても構成され得る。 In addition, when the structure 48 is used as a supporting work, the beam member 5 is not limited to a plate-like member, but may be constituted by a member having a columnar shape.

図２１は、実施の形態３における変形例の構造体５０を示す概略側面図である。本変形例の構造体５０は、中央部や基端部にのみ、梁材５が配置される。この構造体５０は、支保工として使用される。 FIG. 21 is a schematic side view showing a structure 50 according to a modification of the third embodiment. In the structure 50 according to this modification, the beam members 5 are arranged only at the center portion and the base end portion. This structure 50 is used as a support work.

図２２は、構造体５０の中央部を拡大して示す斜視図である。構造体５０の中央部では、相対するフレーム要素４の間に、梁材結合軸１７に連結された第１，２の梁材５Ａ，５Ｂが、上下に２組配置される。 FIG. 22 is an enlarged perspective view showing the central portion of the structure 50. In the central portion of the structure 50, two sets of first and second beam members 5A and 5B connected to the beam member coupling shaft 17 are arranged between the opposing frame elements 4 in the vertical direction.

下側の組の梁材５Ａ，５Ｂは、内側・外側フレーム９，１０の下端部９ｂ，１０ｂに結合される第１，２先端結合軸１１Ａ，１１Ｂに支持される。 The lower set of beam members 5A and 5B are supported by first and second tip coupling shafts 11A and 11B coupled to the lower end portions 9b and 10b of the inner and outer frames 9 and 10, respectively.

上側の組の梁材５Ａ，５Ｂは、内側・外側フレーム９，１０の上端部９ａ，９ｂに結合される第１，２先端結合軸１１Ａ，１１Ｂに支持される。 The upper set of beam members 5A and 5B are supported by first and second tip coupling shafts 11A and 11B coupled to upper end portions 9a and 9b of inner and outer frames 9 and 10, respectively.

また図２１に示すように、構造体５０の基端部では、梁材結合軸１７に連結された第１，２の梁材５Ａ，５Ｂが、１組配置される。この第１，２の梁材５Ａ，５Ｂは、内側・外側フレーム９，１０の下端部９ｂ，１０ｂに結合される第１，２先端結合軸１１Ａ，１１Ｂに支持される。 Further, as shown in FIG. 21, at the base end portion of the structure 50, one set of first and second beam members 5 A and 5 B connected to the beam member coupling shaft 17 is arranged. The first and second beam members 5A and 5B are supported by first and second end coupling shafts 11A and 11B coupled to lower end portions 9b and 10b of the inner and outer frames 9 and 10, respectively.

構造体５０では、内側・外側フレーム９，１０の回転により、中央部及び基端部における第１，２の先端結合軸１１Ａ，１１Ｂの間隔が変化することに応じて、各梁材５Ａ，５Ｂの傾きは変化する。また、第１，２の梁材５Ａ，５Ｂは、突出部材５６Ａ，５６Ｂにより内側・外側フレーム９，１０の回転が停止されたときに、略直線状になるよう長さが設定される。 In the structure 50, each beam member 5A, 5B is changed in accordance with the change in the distance between the first and second distal end coupling shafts 11A, 11B at the central portion and the proximal end portion by the rotation of the inner and outer frames 9, 10. The slope of changes. The lengths of the first and second beam members 5A and 5B are set so as to be substantially linear when the rotation of the inner and outer frames 9 and 10 is stopped by the projecting members 56A and 56B.

構造体５０が支保工として使用される場合には、構造体５０は、一の方向が上下に向いて、第１，２の梁材５Ａ，５Ｂが略直線状になるよう設置される。この場合、第１，２の梁材５Ａ，５Ｂが直線状を呈することや、突出部材５６Ａ，５６Ｂが内側・外側フレーム９，１０の回転を規制することで、構造体５０は、所定長に維持される。 When the structure 50 is used as a support work, the structure 50 is installed so that one direction is vertically directed and the first and second beam members 5A and 5B are substantially linear. In this case, the first and second beam members 5A and 5B are linear, and the protruding members 56A and 56B regulate the rotation of the inner and outer frames 9 and 10, so that the structure 50 has a predetermined length. Maintained.

また、梁材５の設置数が少ないことで、構造体５０の製造に要するコストや手間を小さく抑えられる。なお、梁材５が設置される位置は、上記の中央部・基端部に限らず、任意に設定され得る。 In addition, since the number of installed beam members 5 is small, the cost and labor required for manufacturing the structure 50 can be reduced. In addition, the position where the beam member 5 is installed is not limited to the above-described center portion / base end portion, and may be arbitrarily set.

次に、本発明の実施の形態４について説明する。図２３は、実施の形態４の構造体５１の一部を拡大して示す斜視図である。 Next, a fourth embodiment of the present invention will be described. FIG. 23 is an enlarged perspective view showing a part of the structure 51 of the fourth embodiment.

実施の形態４の構造体５１は、相対するフレーム要素４の２つの外側フレーム１０の間に、内側フレーム９が差し込まれた状態を維持する手段を設けたものであり、この手段により、隣り合うフレーム要素４が連結される。この構造体５１は、応急仮設橋や支保工として使用される。 The structure 51 according to the fourth embodiment is provided with means for maintaining the state in which the inner frame 9 is inserted between the two outer frames 10 of the opposing frame elements 4. Frame elements 4 are connected. The structure 51 is used as an emergency temporary bridge or a support work.

図２４は、第１の結合部材５２及び係合部材５３を拡大して示す斜視図である。図２２（ａ）は、内側・外側フレーム９，１０が回転しているときの状態を示している。図２２（ｂ）は、突出部材５６Ａ，５６Ｂにより内側・外側フレーム９，１０の回転が停止されたときの状態を示している。 FIG. 24 is an enlarged perspective view showing the first coupling member 52 and the engaging member 53. FIG. 22A shows a state where the inner and outer frames 9, 10 are rotating. FIG. 22B shows a state when the rotation of the inner and outer frames 9, 10 is stopped by the protruding members 56A, 56B.

２つの外側フレーム１０の間に差し込まれた２つの内側フレーム９は、これらの上端９ａが、外側フレーム１０の縁から上方に延び出ており、第１の結合部材５２により結合される。 The two inner frames 9 inserted between the two outer frames 10 have their upper ends 9 a extending upward from the edge of the outer frame 10 and are coupled by the first coupling member 52.

第１の結合部材５２は、内側・外側フレーム９，１０が回転する際に、内側フレーム９と接触可能な位置に設けられる。第１の結合部材５２は、内側フレーム９が外側フレーム１０の長手方向に相対的に移動することで、内側フレーム９が外側フレーム１０の間から外側へ抜け出ることを防止する。 The first coupling member 52 is provided at a position where it can come into contact with the inner frame 9 when the inner and outer frames 9 and 10 rotate. The first coupling member 52 prevents the inner frame 9 from slipping out from between the outer frames 10 by the relative movement of the inner frame 9 in the longitudinal direction of the outer frame 10.

また、２つの外側フレーム１０の間に内側フレーム９が差し込まれた状態では、外側フレーム１０の上端１０ａが内側フレーム９の縁から上方に延び出ている。これら外側フレーム１０の上端１０ａには、係合部材５３が設けられる。 When the inner frame 9 is inserted between the two outer frames 10, the upper end 10 a of the outer frame 10 extends upward from the edge of the inner frame 9. An engaging member 53 is provided at the upper end 10 a of these outer frames 10.

係合部材５３は、外側フレーム１０の外側に突出した後、下方（内側フレーム９の中央側）に屈曲する形状を呈して、外側フレーム１０の縁に係合する。係合部材５３は、内側フレーム９が、内側フレーム９の長手方向に相対的に移動することで、内側フレーム９が外側フレーム１０の間から抜け出ることを防止する。 The engaging member 53 protrudes to the outside of the outer frame 10 and then bends downward (center side of the inner frame 9) to engage with the edge of the outer frame 10. The engaging member 53 prevents the inner frame 9 from slipping out between the outer frames 10 by the inner frame 9 relatively moving in the longitudinal direction of the inner frame 9.

また、係合部材５３は、内側・外側フレーム９，１０の回転時に、外側フレーム１０の移動をガイドする。この機能により、外側フレーム１０と内側フレーム９とは、横方向の位置関係が維持されて、スムーズに回転する。 Further, the engaging member 53 guides the movement of the outer frame 10 when the inner and outer frames 9, 10 are rotated. With this function, the outer frame 10 and the inner frame 9 maintain the positional relationship in the horizontal direction and rotate smoothly.

また、相対するフレーム要素４では、２つの内側フレーム９の上端同士が、第２の結合部材５４によって結合される。 Further, in the opposing frame element 4, the upper ends of the two inner frames 9 are coupled by the second coupling member 54.

また本実施の形態では、一の方向に隣り合う２つのフレーム要素４は、一方の内側フレーム９の下端部９ｂと、他方の外側フレーム１０の下端部１０ｂとがピン結合される。このピン結合には、先端結合軸１１が用いられ、この先端結合軸１１により、相対するフレーム要素４が連結される。すなわち、先端結合軸１１は、相対するフレーム要素４の２つの外側フレーム１０の下端１０ｂ同士や、２つの内側フレーム９の下端９ｂ同士を連結する。また、先端結合軸１１により梁材５が支持される。 In the present embodiment, two frame elements 4 adjacent in one direction have a lower end 9b of one inner frame 9 and a lower end 10b of the other outer frame 10 pin-coupled. A tip coupling shaft 11 is used for this pin coupling, and the opposing frame elements 4 are coupled by the tip coupling shaft 11. That is, the tip coupling shaft 11 connects the lower ends 10 b of the two outer frames 10 of the opposing frame elements 4 and the lower ends 9 b of the two inner frames 9. Further, the beam member 5 is supported by the tip coupling shaft 11.

以上の構成により、構造体５１の上側では、第１の結合部材５２と係合部材５３とによって、隣り合う２つのフレーム要素４が連結される。構造体５１の下側では、先端結合軸１１により隣り合う２つのフレーム要素４が連結される。 With the above configuration, two adjacent frame elements 4 are connected to each other on the upper side of the structure 51 by the first coupling member 52 and the engaging member 53. On the lower side of the structure 51, the two adjacent frame elements 4 are connected by the tip coupling shaft 11.

また、構造体５１は、相対するフレーム要素４の２つの外側フレーム１０と、第１の結合部材５２と、先端結合軸１１とが輪状に連なり、相対するフレーム要素４の２つの内側フレーム９と、第２の結合部材５４と、先端結合軸１１とが輪状に連なる閉断面構造を有する。 In addition, the structure 51 includes two outer frames 10 of the opposed frame elements 4, a first coupling member 52, and a tip coupling shaft 11 connected in a ring shape, and two inner frames 9 of the opposed frame elements 4. The second coupling member 54 and the tip coupling shaft 11 have a closed cross-sectional structure that is continuous in a ring shape.

また、第１の結合部材５２・係合部材５３は、内側・外側フレーム９，１０を連動して回転させる機能を有している。 Further, the first coupling member 52 and the engaging member 53 have a function of rotating the inner and outer frames 9 and 10 in conjunction with each other.

すなわち、内側・外側フレーム９，１０が、対頂角Ｔが小さくなるＡ方向に回転する際には、係合部材５３は、これが係合する外側フレーム１０を押さえ付ける。これにより、外側フレーム１０も、対頂角Ｔが小さくなる方向に回転する。 That is, when the inner / outer frames 9 and 10 rotate in the A direction in which the vertical angle T decreases, the engaging member 53 presses the outer frame 10 with which the engaging member 53 is engaged. As a result, the outer frame 10 also rotates in the direction in which the vertical angle T decreases.

また、内側・外側フレーム９，１０が、対頂角Ｔが大きくなるＢ方向に回転する際には、第１の結合部材５２は、外側フレーム１０の間に差し込まれた内側フレーム９に接触して押圧する。これにより、外側フレーム１０も、対頂角Ｔが大きくなる方向に回転する。 Further, when the inner and outer frames 9 and 10 rotate in the B direction in which the vertical angle T increases, the first coupling member 52 contacts and presses the inner frame 9 inserted between the outer frames 10. To do. As a result, the outer frame 10 also rotates in the direction in which the vertical angle T increases.

実施の形態５は、実施の形態１と同様、図６に示す伸縮機構１８を、構造体５１の基端にある先端結合軸１１に対して設置し、螺旋棒１９を回転させることで、内側・外側フレーム９，１０を回転させることができる。これにより、構造体５１は伸縮する。 In the fifth embodiment, as in the first embodiment, the telescopic mechanism 18 shown in FIG. 6 is installed with respect to the distal end coupling shaft 11 at the base end of the structure 51, and the spiral rod 19 is rotated to -The outer frames 9, 10 can be rotated. Thereby, the structure 51 expands and contracts.

また、隣り合う２つの第１の結合部材５２、或いは隣り合う２つの第２の結合部材５４の間隔を変化させても、各フレーム要素４の内側・外側フレーム９，１０は回転するので、構造体５１を伸縮させることができる。 Even if the interval between the two adjacent first coupling members 52 or the two adjacent second coupling members 54 is changed, the inner and outer frames 9 and 10 of each frame element 4 rotate. The body 51 can be expanded and contracted.

また、内側・外側フレーム９，１０の回転により、構造体５１が所定長に達した際には、突出部材５６Ａ，５６Ｂが内側・外側フレーム９，１０の回転を停止させるので、上記の長さが安定して維持される。これにより、構造体５１は容易に設置され得る。 Further, when the structure 51 reaches a predetermined length due to the rotation of the inner and outer frames 9 and 10, the projecting members 56A and 56B stop the rotation of the inner and outer frames 9 and 10. Is maintained stably. Thereby, the structure 51 can be installed easily.

また、内側・外側フレーム９，１０の回転が停止されたときに、各梁材５が直線状になるように、各梁材５の長さが設定されることで、平坦で容易に通行可能な通路が確保される。 In addition, the length of each beam member 5 is set so that each beam member 5 becomes a straight line when rotation of the inner and outer frames 9, 10 is stopped. A safe passage.

構造体５１が支保工として使用される際には、梁材５が直線状態になることや、突出部材５６Ａ，５６Ｂが内側・外側フレーム９，１０の回転を規制することで、構造体５１は、所定長に延びた状態が維持される。 When the structure 51 is used as a support work, the beam 51 is in a straight line state, or the protruding members 56A and 56B restrict the rotation of the inner and outer frames 9 and 10, so that the structure 51 The state extended to a predetermined length is maintained.

また本実施の形態によれば、隣り合う２つのフレーム要素４を連結する作業は、２つの外側フレーム１０の間に、２つの内側フレーム９を差し込んだ後、これら内側フレーム９を回転させるという簡易なものとなる。これにより、構造体５１は容易に組み立てられる。 Further, according to the present embodiment, the operation of connecting two adjacent frame elements 4 is simple by inserting the two inner frames 9 between the two outer frames 10 and then rotating the inner frames 9. It will be something. Thereby, the structure 51 is easily assembled.

また、本実施の形態の構造体５１も、構成部材が輪状に連なる閉断面構造を有するため、高い剛性を有して、外力の作用による変形が生じにくい。 In addition, since the structural member 51 of the present embodiment also has a closed cross-sectional structure in which the constituent members are continuous in a ring shape, the structural member 51 has high rigidity and is not easily deformed by the action of an external force.

次に、本発明の実施の形態５について説明する。図２５は、実施の形態５の構造体５５の一部を拡大して示す斜視図である。構造体５５は、梁材５や、先端結合軸１１が省略されたものであって、第１，２の結合部材５２，５４・係合部材５３により、各フレーム要素４が連結される。この構造体５５は、支保工として使用される。 Next, a fifth embodiment of the present invention will be described. FIG. 25 is an enlarged perspective view showing a part of the structure 55 according to the fifth embodiment. The structural body 55 is obtained by omitting the beam member 5 and the tip coupling shaft 11, and the frame elements 4 are connected by the first and second coupling members 52, 54 and the engaging member 53. This structure 55 is used as a support work.

各フレーム要素４において、係合部材５３は、内側フレーム９の上端９ａ及び下端９ｂに設けられて、それぞれ外側フレーム１０の縁に係合している。 In each frame element 4, the engaging member 53 is provided at the upper end 9 a and the lower end 9 b of the inner frame 9 and engages with the edge of the outer frame 10.

相対するフレーム要素４では、外側フレーム１０，１０における上端１０ａ，１０ａ同士と下端１０ｂ，１０ｂ同士とが、第１の結合部材５２により結合される。また、内側フレーム９，９における上端９ａ，９ａ同士と下端９ｂ，９ｂ同士とが、第２の結合部材５４により結合される。 In the opposite frame element 4, the upper ends 10 a and 10 a and the lower ends 10 b and 10 b of the outer frames 10 and 10 are coupled to each other by the first coupling member 52. Further, the upper ends 9 a and 9 a and the lower ends 9 b and 9 b of the inner frames 9 and 9 are coupled to each other by the second coupling member 54.

以上の結合により、構造体５５は、相対するフレーム要素４の２つの外側フレーム１０と、２つの第１の結合部材５２とが輪状に連なり、また、相対するフレーム要素４の２つの内側フレーム９と、２つの第２の結合部材５４とが輪状に連なる閉断面構造を有している。 As a result of the above coupling, the structure 55 has two outer frames 10 of the opposing frame elements 4 and two first coupling members 52 connected in a ring shape, and two inner frames 9 of the opposing frame elements 4. In addition, the two second coupling members 54 have a closed cross-sectional structure that is continuous in a ring shape.

実施の形態５では、一の方向に隣り合う２つの第１，２の結合部材５２，５４の間隔を変化させることで、各内側・外側フレーム９，１０を回転させて、構造体５５を一の方向に伸縮することができる。 In the fifth embodiment, the inner and outer frames 9 and 10 are rotated by changing the distance between the two first and second coupling members 52 and 54 adjacent to each other in one direction, so that the structural body 55 is moved to the same position. It can expand and contract in the direction.

本実施の形態によれば、軸部材による連結箇所が存在しないので、構造体５５の組み立てが極めて容易である。 According to the present embodiment, since there is no connection portion by the shaft member, the assembly of the structure 55 is extremely easy.

また、構造体５５も、構成部材が輪状に連なる閉断面構造を有することから、高い剛性を有して、外力の作用による変形が生じにくい。 In addition, since the structural member 55 has a closed cross-sectional structure in which the constituent members are continuous in a ring shape, the structural member 55 has high rigidity and is hardly deformed by the action of an external force.

また、構造体５５が支保工として使用される場合には、各フレーム要素４の突出部材５６Ａ，５６Ｂによって、内側・外側フレーム９，１０の回転が規制される。これにより、構造体５５は、所定長に延びた状態が維持される。 Further, when the structural body 55 is used as a support work, the rotation of the inner and outer frames 9 and 10 is restricted by the projecting members 56A and 56B of each frame element 4. Thereby, the structure 55 is maintained in a state extending to a predetermined length.

なお、本発明は、上記した実施形態のみに限定されるものではなく、特許請求の範囲内において、種々改変することができる。 Note that the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims.

例えば、内側・外側フレーム９，１０の回転を停止させる突出部材５６は、内側・外側フレーム９，１０のいずれか一方に設けられてもよい。この場合、突出部材５６は、内側・外側フレーム９，１０の他方が回転する空間に突出するように設けられる。 For example, the projecting member 56 that stops the rotation of the inner and outer frames 9 and 10 may be provided on either the inner or outer frames 9 and 10. In this case, the protruding member 56 is provided so as to protrude into a space in which the other of the inner and outer frames 9 and 10 rotates.

例えば、Ｔ型鋼１３及びＩ型鋼１４（図３）の設置範囲は、交差部９ｃ，１０ｃ近傍の任意の範囲に変更可能である。図２６は、Ｔ型鋼１３の設置範囲が変更された内側・外側フレーム９，１０を示す斜視図である。この例のように、Ｔ型鋼１３は、内側・外側フレーム９，１０の交差部９ｃ，１０ｃの両側に延びるように設けられてもよい。なお、突出部材５６Ａ，５６Ｂが接触する範囲では、Ｔ型鋼１３は省略される。 For example, the installation range of the T-shaped steel 13 and the I-shaped steel 14 (FIG. 3) can be changed to an arbitrary range near the intersections 9c and 10c. FIG. 26 is a perspective view showing the inner and outer frames 9, 10 in which the installation range of the T-shaped steel 13 is changed. As in this example, the T-shaped steel 13 may be provided so as to extend on both sides of the intersecting portions 9c, 10c of the inner and outer frames 9, 10. Note that the T-shaped steel 13 is omitted in a range where the projecting members 56A and 56B are in contact with each other.

また、Ｉ型鋼１２も、Ｔ型鋼１３と同様、内側・外側フレーム９，１０の交差部９ｃ，１０ｃの両側に延びるように設けられてもよい（Ｉ型鋼１２については図示を省略）。 Also, the I-shaped steel 12 may be provided so as to extend on both sides of the intersecting portions 9c and 10c of the inner and outer frames 9, 10 in the same manner as the T-shaped steel 13 (illustration of the I-shaped steel 12 is omitted).

また、梁材５を備える構造体１，４１，４８，５１（図２，１６，１９，２３）は、潮位上昇や簡易堤防のための水流抑制壁として使用することができる。この場合、構造体１，４１，４８，５１は、水の進路を横切るように配置されて、梁材５が水流を阻止する壁として機能する。このように使用される場合には、構造体１，４１，４８，５１は、その全体を容易に伸縮できるため、迅速に水流を阻止できる。 Moreover, the structures 1, 41, 48, 51 (FIGS. 2, 16, 19, and 23) including the beam member 5 can be used as a water flow restraint wall for tide level rise and simple dikes. In this case, the structures 1, 41, 48, and 51 are disposed so as to cross the course of water, and the beam member 5 functions as a wall that blocks water flow. When used in this way, the structural bodies 1, 41, 48, 51 can be easily expanded and contracted, so that the water flow can be quickly prevented.

また、構造体１，４１，４８，５１（図２，１６，１９，２３）では、梁材５は予め一体とされず、構造体１，４１，４８，５１の伸張作業が終了した後に、構造体１，４１，４８，５１に取り付けられるようにしてもよい。この場合、梁材５は、内側・外側フレーム９，１０の先端に結合される先端結合軸１１や、内側・外側フレーム９，１０の交差部９ｃ，１０ｃをピン結合する軸部材を用いて、構造体１，４１，４８，５１に取り付けることができる。 Further, in the structures 1, 41, 48, 51 (FIGS. 2, 16, 19, 23), the beam 5 is not integrated in advance, and after the extension work of the structures 1, 41, 48, 51 is completed, You may make it attach to structure 1,41,48,51. In this case, the beam member 5 uses a tip coupling shaft 11 coupled to the distal ends of the inner and outer frames 9 and 10 and a shaft member that pin-couples the intersecting portions 9c and 10c of the inner and outer frames 9 and 10, It can be attached to the structures 1, 41, 48, 51.

本発明は、トラックなどにより災害現場に搬送される応急仮設橋、橋桁、トンネル、あるいはドーム等の支保工、さらには、潮位上昇や簡易堤防のための水流抑制壁として好適に使用することができる。 INDUSTRIAL APPLICABILITY The present invention can be suitably used as a temporary work bridge, a bridge girder, a tunnel, a dome or the like that is transported to a disaster site by a truck or the like, and further as a water flow restraint wall for rising tide levels or simple dikes. .

１，４１，４８，５０，５１，５５構造体
２サイドフレーム
３床板
４，４Ａフレーム要素、
５梁材
５Ａ第１の梁材
５Ｂ第２の梁材
５ａ第２の梁材の一端部
５ｂ第１の梁材の他端部
６レール架台
７床材
８壁材
９内側フレーム
９ａ内側フレームの上端部
９ｂ内側フレームの下端部
９ｃ内側フレームの交差部
１０外側フレーム
１０ａ外側フレームの上端部
１０ｂ外側フレームの下端部
１０ｃ外側フレームの交差部
１１先端結合軸
１１Ａ第１の先端結合軸
１１Ｂ第２の先端結合軸
１１Ｃ第４の先端結合軸
１１Ｄ第５の先端結合軸
１１Ｅ第３の先端結合軸
１２空洞部
１３Ｔ型鋼
１３ａフランジ部
１３ｂウエブ部
１４Ｉ型鋼
１４ａフランジ部
１５，１６突起
１５ａ，１６ａ突起の貫通孔
１７，１７Ａ，１７Ｂ梁材結合軸
１８伸縮機構
１９螺旋棒
１９ａ一端部
１９ｂ他端部
２０固定支持部
２１スライド部
２２板材
２３連結材
２４第１の固定手段
２５，３６支持軸
２６，３７係止突起
２７第１の回転部材
２８第１の回転部材の凹み
２９第２の固定手段
３０第３の固定手段
３１第２の回転部材
３２第３の回転部材
３３第２の回転部材の凹み
３４第３の回転部材の凹み
３８第４の回転部材
３９第４の回転部材の凹み
４２ターンバックル
４３，４４貫通孔
４９ポール
５２第１の結合部材
５３係合部材
５４第２の結合部材
５６Ａ，５６Ｂ突出部材（回転停止部材）
６０連結材
６１踏み板
７０結合部材
５６０，５６１側面
Ｔ対頂角 1,41,48,50,51,55 Structure
2 Side frame
3 Floor boards
4,4A frame element,
5 Beam material
5A First beam material
5B Second beam material
5a One end of the second beam
5b The other end of the first beam member
6 rail mount
7 Flooring
8 Wall material
9 Inner frame
9a Top edge of inner frame
9b Lower end of inner frame
9c Intersection of inner frame
10 Outer frame
10a Upper end of outer frame
10b Lower end of outer frame
10c Intersection of outer frame
11 Tip coupling shaft
11A First tip coupling shaft
11B Second tip coupling shaft
11C Fourth tip coupling shaft
11D Fifth tip coupling shaft
11E Third tip coupling shaft
12 Cavity
13 T steel
13a Flange
13b Web part
14 I-shaped steel
14a Flange
15,16 protrusion
15a, 16a Protrusion through hole
17, 17A, 17B Beam connecting shaft
18 Telescopic mechanism
19 Spiral stick
19a one end
19b The other end
20 Fixed support part
21 Slide part
22 Board material
23 connecting materials
24 First fixing means
25, 36 Support shaft
26, 37 Locking projection
27 First rotating member
28 Recess of first rotating member
29 Second fixing means
30 Third fixing means
31 Second rotating member
32 Third rotating member
33 Recess of second rotating member
34 Recess of third rotating member
38 Fourth rotating member
39 Recess of the fourth rotating member
42 Turnbuckle
43,44 Through hole
49 Paul
52 First coupling member
53 engaging member
54 Second coupling member
56A, 56B Projection member (rotation stop member)
60 connecting materials
61 Footboard
70 coupling members
560,561 side
T Vertical angle

Claims

A plurality of side frames each having a plurality of frame elements connected in one direction are integrally arranged side by side, and the frame elements are composed of two frames that are pin-coupled so as to be pivotable at intersections, A structure in which the side frame can be expanded and contracted in the one direction by rotating the frame of the frame element interlockingly,
Each frame element is provided on one of the two frames, and when the two vertical angles facing the one direction among the four corners generated by the intersection of the two frames become a predetermined angle , structure, wherein the two shear resistance member other in projection you interference frame is provided.

A plurality of side frames each having a plurality of frame elements connected in one direction are integrally arranged side by side, and the frame elements are composed of two frames that are pin-coupled so as to be pivotable at intersections, A structure in which the side frame can be expanded and contracted in the one direction by rotating the frame of the frame element interlockingly,
Each frame element has a rotation stop that stops the rotation of the frame when two vertical angles facing the one direction become a predetermined angle among the four angles generated by the intersection of the two frames. Members are provided,
The rotation stop member is composed of a protruding member formed integrally with one of the two frames of each of the frame elements,
The projecting member, the other of the frame protrudes into the space which rotates, when the two vertical angles becomes a predetermined angle, structure Zotai characterized in that abuts against the other frame.

The protruding member includes an object having a side surface inclined at the predetermined angle with respect to a longitudinal direction of the one frame, and the side surface protrudes into a space in which the other frame rotates. The structure according to claim 2.

A plurality of side frames each having a plurality of frame elements connected in one direction are integrally arranged side by side, and the frame elements are composed of two frames that are pin-coupled so as to be pivotable at intersections, A structure in which the side frame can be expanded and contracted in the one direction by rotating the frame of the frame element interlockingly,
Each frame element has a rotation stop that stops the rotation of the frame when two vertical angles facing the one direction become a predetermined angle among the four angles generated by the intersection of the two frames. Members are provided,
Said frame structure Zotai you characterized in that stiffeners to increase the cross-sectional area of the intersection near provided.

The structure according to claim 4, wherein the stiffener is made of a T-shaped steel fixed in the vicinity of an intersection of the frame.

The frame is composed of a hollow cross-section member,
The structure according to claim 4, wherein the stiffener is made of an I-shaped steel fixed in a cavity near an intersection of the frame.

In the state where the two vertical angles are a predetermined angle, it further includes a distance maintaining means for maintaining a distance between a first position in one of the two frames and a second position in the other of the two frames. The structure according to any one of claims 1 to 6, characterized in that:

A plurality of side frames each having a plurality of frame elements connected in one direction are integrally arranged side by side, and the frame elements are composed of two frames that are pin-coupled so as to be pivotable at intersections, A structure in which the side frame can be expanded and contracted in the one direction by rotating the frame of the frame element interlockingly,
Each frame element has a rotation stop that stops the rotation of the frame when two vertical angles facing the one direction become a predetermined angle among the four angles generated by the intersection of the two frames. Members are provided,
An interval maintaining means for maintaining an interval between a first position in one of the two frames and a second position in the other of the two frames in a state where the two vertical angles are a predetermined angle;
In one of the two frames, a first through hole is formed in the first position, and in the other frame, a second through hole is formed in the second position,
The gap maintaining means, structure Zotai characterized in that it is composed of a turnbuckle which is engaged with the first and second through-holes.

The side frames are arranged side by side so that the plurality of frame elements are in a one-to-one relationship, and in each of the side frames, the frame elements adjacent in the one direction are pin-coupled at the front end of the frame. And
9. The front end connecting shaft used for the pin connection extends between the side frames and connects the front end portions of the frames of the opposed frame elements. The structure described.

A plurality of side frames each having a plurality of frame elements connected in one direction are integrally arranged side by side, and the frame elements are composed of two frames that are pin-coupled so as to be pivotable at intersections, A structure in which the side frame can be expanded and contracted in the one direction by rotating the frame of the frame element interlockingly,
Each frame element has a rotation stop that stops the rotation of the frame when two vertical angles facing the one direction become a predetermined angle among the four angles generated by the intersection of the two frames. Members are provided,
The side frames are arranged side by side so that the plurality of frame elements are in a one-to-one relationship, and in each of the side frames, the frame elements adjacent in the one direction are pin-coupled at the front end of the frame. And
A tip connecting shaft used for pin connection extends between the side frames to connect the tip portions of the frames of the opposing frame elements;
Between the side frames, a plurality of beam members are continuously arranged in the one direction,
In the plurality of beam members, a first beam member whose one end portion is pivotally supported by the first tip coupling shaft, and the other end portion and one end portion of the first beam member are abutted with each other. A second beam member that is pivotally connected to the pin and has the other end pivotally supported by the second tip coupling shaft is disposed adjacent to the second beam.
In response to the change in the interval between the first and second tip coupling shafts due to the rotation of the frame, the inclination of the first and second beam members changes with the abutting ends becoming apexes. ,
Wherein when the rotation of the frame by the rotation stopping member is stopped, the first and second beam members are configured Zotai it characterized by comprising substantially linearly.

When the rotation of the frame is stopped by the rotation stop member, the end portion of the first and second beam members that are abutted against each other is the third tip that is located between the first and second tip coupling shafts. The structure according to claim 10, wherein the structure is placed on a coupling shaft.

A fixing means for fixing a state in which the end portions of the first and second beam members are placed on the third tip coupling shaft;
The fixing means includes a support shaft formed on one of the first and second beam members, a locking projection formed on the other of the first and second beam members, and one end pivoting on the support shaft. A first rotating member that is pivotally supported,
The first rotating member is formed with a recess having a shape corresponding to the outer periphery of the locking protrusion,
The first rotating member is rotated to a predetermined position in a state where the end portions of the first and second beam members that are abutted are placed on the second tip coupling shaft, whereby the first The structure according to claim 11, wherein the recess of the rotating member is engaged with the locking protrusion.

In a state where the recess is engaged with the locking projection, the first rotating member and the end portion where the first and second beam members are brought into contact sandwich the third tip coupling shaft. The structure according to claim 12.

A fixing means for fixing a state in which the end portions of the first and second beam members are placed on the third tip coupling shaft;
The ends of the first and second beam members to be abutted are pin-coupled by a beam material coupling axis,
The fixing means is composed of second and third rotating members pivotally supported on the beam material coupling shaft,
The second rotating member is formed with a recess having a shape corresponding to one range on the outer periphery of the tip coupling shaft, and the third rotating member corresponds to the other range on the outer periphery of the tip coupling shaft. A dent with a shape to form,
In the state where the end portions of the first and second beam members that are abutted are placed on the third tip coupling shaft, the second rotating member is rotated to a predetermined position, so that the tip The third rotation member is engaged with the one side range on the outer periphery of the coupling shaft, and the third rotation member is rotated to the predetermined position in the reverse direction to the second rotation member. The structure according to claim 11, wherein the tip coupling shaft is substantially entirely sandwiched between the second and third rotating members.

In each of the side frames, the two frame elements adjacent to each other in the one direction are coupled by the tip coupling shaft at the upper end portion and the lower end portion of the frame,
Between the side frames, two sets of the plurality of beam members are respectively arranged in the one direction,
Of the two sets of beams, one set of beams is supported by the tip coupling shaft that couples the lower end of the frame, and the other set of beams joins the upper end of the frame. The structure according to claim 10, wherein the structure is supported by a tip coupling shaft.

Between the side frames, a plurality of poles extending in the vertical direction with an interval in the one direction are disposed,
The structure according to claim 15, wherein each of the poles is placed on one of the two sets of beam members and supports the other set of beam members.

A plurality of side frames each having a plurality of frame elements connected in one direction are integrally arranged side by side, and the frame elements are composed of two frames that are pin-coupled so as to be pivotable at intersections, A structure in which the side frame can be expanded and contracted in the one direction by rotating the frame of the frame element interlockingly,
Each frame element has a rotation stop that stops the rotation of the frame when two vertical angles facing the one direction become a predetermined angle among the four angles generated by the intersection of the two frames. Members are provided,
The side frames are arranged side by side so that the plurality of frame elements are in a one-to-one relationship, and each of the frame elements includes an inner frame and an outer frame.
In the opposite frame elements, two inner frames of other frame elements adjacent in the one direction are inserted between the two outer frames,
The tips of the two inner frames extend from the edge of the outer frame, and the tips of the inner frames have a shape that protrudes to the outside of the outer frame and then bends toward the center side of the inner frame. An engaging member is provided for engaging with an edge of the outer frame;
The tips of the two outer frames extend from the edge of the inner frame and are coupled by a first coupling member;
Said first coupling member is configured Zotai said inner frame and said outer frame you characterized in that contact with the inner frame at the time of rotation.

The structure according to claim 17, wherein tips of the two inner frames are coupled by a second coupling member.

In each of the side frames, the two frame elements adjacent to each other in the one direction have one outer frame and the other inner frame pin-coupled at a tip portion on one side,
The tip coupling shaft used for the pin coupling extends between the side frames and connects the tips of one side of the outer frame and the tips of one side of the inner frame of the opposing frame elements. ,
The first coupling member is coupled to the tip of the other side of the outer frame of the opposing frame element;
The structure according to claim 18, wherein the second coupling member is coupled to a tip on the other side of the inner frame of the opposing frame element.

The first coupling member is coupled to tips of both sides of the outer frame of the opposing frame element;
The structure according to claim 18, wherein the second coupling member is coupled to tips of both sides of the inner frame of the opposing frame element.