JP2024053567A - Wedge fastening device for scaffolding - Google Patents

Wedge fastening device for scaffolding Download PDF

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JP2024053567A
JP2024053567A JP2024021932A JP2024021932A JP2024053567A JP 2024053567 A JP2024053567 A JP 2024053567A JP 2024021932 A JP2024021932 A JP 2024021932A JP 2024021932 A JP2024021932 A JP 2024021932A JP 2024053567 A JP2024053567 A JP 2024053567A
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wedge member
flange
portions
wedge
branch
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大介 嶋岡
涼 板倉
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Alinco Inc
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Abstract

【課題】仮設足場等の足場において使用される楔緊結装置を提供する。【解決手段】連結部材に固設された連結金具(15)の受入部(20)に支柱のフランジを進入させた状態で、楔部材(16)をフランジの緊結孔(14)に打ち込むことにより緊結する構成において、連結金具の空所部(26)に設けた保持手段(32)により、楔部材(16)の枝部(16B)を挿通させる筒部(33)と、該筒部(33)から延設されて前記枝部(16B)の両側面に臨む一対の弾性保持部(34)(34)を構成し、枝部(16B)に形成した遊動領域(40)を前記弾性保持部(34)(34)に対して上下動自在となるように構成するが、遊動領域(40)の上端に設けたストッパ部(37)(37)及び下端に設けた保持受部(39)(39)を前記弾性保持部(34)(34)により受止められるように構成している。【選択図】図２A wedge fastening device for use in scaffolding such as temporary scaffolding is provided. [Solution] In a configuration in which the flange of the support is inserted into the receiving portion (20) of a connecting fitting (15) fixed to the connecting member, and a wedge member (16) is driven into the fastening hole (14) of the flange to fasten it, a retaining means (32) provided in a hollow portion (26) of the connecting fitting forms a tubular portion (33) through which a branch portion (16B) of the wedge member (16) is inserted, and a pair of elastic retaining portions (34)(34) extending from the tubular portion (33) and facing both side surfaces of the branch portion (16B), and a free movement area (40) formed in the branch portion (16B) is configured to be freely movable up and down relative to the elastic retaining portions (34)(34), and stopper portions (37)(37) provided at the upper end of the free movement area (40) and retaining receiving portions (39)(39) provided at the lower end are configured to be received by the elastic retaining portions (34)(34). [Selected figure] Figure 2

Description

本発明は、仮設足場等の足場において使用される楔緊結装置に関する。 The present invention relates to a wedge fastening device used in scaffolding such as temporary scaffolding.

従来、構築と解体を行う仮設足場において、楔緊結装置が提供されている。例えば、図１に示すように、支柱１と横架材等の連結部材２を着脱自在に連結するための装置として、支柱１の長手方向に間隔をあけて固設したフランジ３に設けた緊結孔４に対して、連結部材２の端部に固設した連結金具５を楔部材６により緊結するように構成した楔緊結装置が公知である。 Conventionally, a wedge fastening device has been provided for temporary scaffolding that is constructed and dismantled. For example, as shown in Figure 1, a wedge fastening device is known as a device for detachably connecting a support 1 and a connecting member 2 such as a cross member, which is configured to fasten a connecting fitting 5 fixed to the end of the connecting member 2 with a wedge member 6 to fastening holes 4 provided in flanges 3 fixedly installed at intervals in the longitudinal direction of the support 1.

連結金具５は、上下顎部５ａ、５ｂの間に受入部９形成すると共に、上下顎部５ａ、５ｂにそれぞれ上側の挿通孔７と下側の挿通孔８を設けており、受入部９にフランジ３を進入させたとき、フランジの緊結孔４と上下顎部の挿通孔７、８を上下方向に連通させるように形成されている。 The connecting fitting 5 forms a receiving portion 9 between the upper and lower jaws 5a, 5b, and has an upper insertion hole 7 and a lower insertion hole 8 in each of the upper and lower jaws 5a, 5b. When the flange 3 is inserted into the receiving portion 9, the fastening hole 4 of the flange and the insertion holes 7, 8 of the upper and lower jaws are vertically connected.

楔部材６は、前記の各孔に挿通自在な厚さの盤状体より形成され、腹部６ａと背部６ｂの間の幅寸法を下方に向けて次第に幅狭とするように形成されている。 The wedge member 6 is formed from a plate-like body with a thickness that allows it to be inserted freely through each of the holes, and is formed so that the width between the abdomen 6a and the back 6b gradually narrows downward.

そこで、楔部材６を上から下に向けて上顎部５ａの挿通孔７とフランジ３の緊結孔４と下顎部５ｂの挿通孔８に挿通させた状態で、ハンマー等により殴打して下動させると、楔部材６が緊結孔４の接支縁部４ａと挿通孔７、８の受縁部７ａ、８ａの間に圧入され、接支縁部４ａと受縁部７ａ、８ａの間隔を押し広げながら、連結金具５を押動させることにより、上下顎部５ａ、５ｂの先端部を支柱の表面に圧接状態で当接する。これにより、フランジ３と楔部材６と連結金具５と支柱１の相互間における緊結状態が得られる。 Then, when the wedge member 6 is inserted from top to bottom through the insertion hole 7 of the upper jaw 5a, the fastening hole 4 of the flange 3, and the insertion hole 8 of the lower jaw 5b, it is struck downward with a hammer or the like, and the wedge member 6 is pressed into between the support edge 4a of the fastening hole 4 and the receiving edges 7a, 8a of the insertion holes 7, 8. By pushing the connecting fitting 5 while widening the gap between the support edge 4a and the receiving edges 7a, 8a, the tips of the upper and lower jaws 5a, 5b come into pressure contact with the surface of the support. This results in a fastened state between the flange 3, the wedge member 6, the connecting fitting 5, and the support 1.

そして、この緊結状態において、下顎部５ｂの挿通孔８から挿出された楔部材６の下端部をハンマー等により殴打して上動させると、緊結状態が解除される。 In this tightened state, the lower end of the wedge member 6 inserted through the insertion hole 8 of the lower jaw portion 5b is struck with a hammer or the like to move it upward, thereby releasing the tightened state.

特開２０１８－７１１９６号公報JP 2018-71196 A

上述の緊結作業を行うためには、先ず、連結金具５をフランジ３の側方に臨ませた状態からフランジ３に向けて横方向に移動させ、受入部９にフランジ３を進入させると共に、上顎部５ａの載置面１０をフランジ３に載置する必要がある。しかしながら、このとき楔部材６が受入部９の内部に位置している場合は、フランジ３を受入部９に進入させることができない。このため、図１（Ａ）に示すように、作業者の指先等で楔部材６を退避位置ＰＸに持ち上げることにより受入部９を開放状態とし、楔部材６を保持した状態で連結金具５をフランジ３に向けて移動させなければならない。 To perform the above-mentioned fastening work, first, the connecting fitting 5 must be moved laterally from a position facing the side of the flange 3 toward the flange 3, the flange 3 must enter the receiving portion 9, and the mounting surface 10 of the upper jaw portion 5a must be placed on the flange 3. However, if the wedge member 6 is located inside the receiving portion 9 at this time, the flange 3 cannot enter the receiving portion 9. For this reason, as shown in FIG. 1(A), the worker must lift the wedge member 6 to the retracted position PX with the worker's fingertips or the like to open the receiving portion 9, and then move the connecting fitting 5 toward the flange 3 while holding the wedge member 6.

受入部９にフランジ３を進入させ、楔部材６をフランジの緊結孔４に臨ませた状態で、指先等による保持から解放すれば、楔部材６は、自重で下降して停止位置ＰＹで停止するので、引き続きハンマー等による殴打により、緊結位置ＰＺまで下動させれば良い。 When the flange 3 is inserted into the receiving portion 9 and the wedge member 6 is facing the fastening hole 4 of the flange, it is released from the grip of the fingertips, etc. The wedge member 6 will descend under its own weight and stop at the stop position PY, and can then be moved down to the fastening position PZ by subsequently striking it with a hammer, etc.

足場の構築は、多数の個所において、緊結作業を行うことが必要である。連結金具５は連結部材２と一体化された重量物を構成しているので、これをフランジ３に臨むように位置決めして横方向に移動させることは重労働であり、しかも、その作業中、楔部材６を退避位置ＰＸに持ち上げた状態で保持し続けることは、作業者に酷である。 The construction of scaffolding requires fastening work at many points. The connecting fitting 5 is a heavy object integrated with the connecting member 2, so positioning it so that it faces the flange 3 and moving it laterally is hard work, and it is also hard on the worker to continue to hold the wedge member 6 raised to the retracted position PX during this work.

足場の解体の場合も同様であり、緊結状態が解除された楔部材６を退避位置ＰＸに持ち上げ、連結金具５の受入部９からフランジ３が抜き出されるまで、持ち上げ状態を保持する必要がある。 The same applies when dismantling scaffolding; the untightened wedge member 6 must be lifted to the retracted position PX and kept in the lifted state until the flange 3 is removed from the receiving portion 9 of the connecting fitting 5.

ところで、上記問題を解決するためには、例えば、連結金具に楔部材を保持するスプリングを設け、作業者が指先によりスプリングの弾発力に抗して楔部材を上下動させ、上述のような退避位置ＰＸに位置させた状態で、指先から放しても、楔部材が該退避位置で停止保持されるように構成すれば良い。 In order to solve the above problem, for example, a spring that holds the wedge member in place can be provided on the connecting fitting, and the worker can use his or her fingertips to move the wedge member up and down against the resilience of the spring, so that when the wedge member is positioned at the retracted position PX as described above, it will stop and be held in that retracted position even if the worker releases the wedge member from the fingertips.

しかしながら、スプリングと楔部材を相互にどのように構成すべきかについて、解決すべき課題がある。 However, there are issues to be resolved regarding how the spring and wedge member should be configured relative to each other.

そこで、本発明が手段として構成したところは、支柱に固設されたフランジに連結部材を連結する緊結装置であり、前記連結部材に固設された連結金具と楔部材により構成され、連結金具の受入部にフランジを進入させた状態で、楔部材をフランジの緊結孔に打ち込むことにより緊結する構成において、前記連結金具は、内部に空所部を形成した基部から上顎部と下顎部を延設すると共に、該上下顎部の間に前記受入部を形成し、前記空所部に保持手段を設けており、前記楔部材は、楔本体部と枝部を並設一体化しており、前記枝部は、前記空所部を上下に貫通して挿通されると共に、楔部材が自重で下降しないように前記保持手段により保持されるストッパ部を両側面に設け、前記楔本体部は、前記上下顎部に挿通されると共に、前記枝部を保持する保持手段の保持力に勝る力で楔部材を下動したとき、前記緊結孔に緊結されるように構成されており、前記保持手段は、前記枝部を挿通させる筒部と、該筒部から延設されて前記枝部の両側面に臨む一対の弾性保持部を備え、前記弾性保持部は、前記枝部のストッパ部を受止めることにより楔部材を自重で下降しないように停止させるが、楔部材に下向きの力が与えられたとき、前記ストッパ部により押し広げられ、該ストッパ部を通過させることにより楔部材の下動を許すように構成されて成る点にある。 The present invention provides a fastening device for connecting a connecting member to a flange fixed to a support, which is made up of a connecting fitting and a wedge member fixed to the connecting member, and fastens the flange by inserting the flange into the receiving portion of the connecting fitting and driving the wedge member into the fastening hole of the flange. The connecting fitting has an upper jaw and a lower jaw extending from a base portion having a hollow portion formed therein, the receiving portion is formed between the upper and lower jaws, and a holding means is provided in the hollow portion. The wedge member has a wedge main body portion and a branch portion arranged side by side and integrated, the branch portion is inserted vertically through the hollow portion, and the holding means is arranged so that the wedge member does not descend under its own weight. The wedge body is inserted into the upper and lower jaws and is fastened to the fastening hole when the wedge member is moved downward with a force greater than the holding force of the holding means that holds the branch. The holding means includes a tubular portion through which the branch is inserted and a pair of elastic holding portions that extend from the tubular portion and face both sides of the branch. The elastic holding portions stop the wedge member from descending under its own weight by receiving the stopper portions of the branch, but are configured such that when a downward force is applied to the wedge member, they are pushed apart by the stopper portions and pass through the stopper portions to allow the wedge member to move downward.

前記枝部は、上下方向の中間部に位置して遊動領域を設け、該遊動領域の上端に設けた下向き凸状段部により前記ストッパ部を形成しており、前記遊動領域は、前記弾性保持部により上下動自在に摘持され、該遊動領域を介して楔部材の自重による下降を許すが、前記ストッパ部が弾性保持部に載置された状態で該楔部材の下降を停止させるように構成されている。 The branch portion has a free movement area located in the vertical middle, and the stopper portion is formed by a downwardly protruding step portion provided at the upper end of the free movement area. The free movement area is pinched by the elastic holding portion so that it can move up and down freely, and allows the wedge member to descend due to its own weight via the free movement area, but is configured to stop the descent of the wedge member when the stopper portion is placed on the elastic holding portion.

前記枝部は、前記遊動領域の下端に設けた上向き凸状段部により保持受部を形成し、前記遊動領域を介して枝部が上昇させられ、前記保持受部が前記弾性保持部に当接した状態で、楔部材に上向きの力が与えられたとき、前記弾性保持部が前記保持受部により押し広げられ、該保持受部を通過させることにより楔部材の上動を許すように構成されている。 The branch portion forms a retaining portion by an upwardly protruding step provided at the lower end of the free movement area, and when the branch portion is raised through the free movement area and an upward force is applied to the wedge member with the retaining portion abutting the elastic retaining portion, the elastic retaining portion is pushed apart by the retaining portion, and the wedge member is allowed to move upward by passing through the retaining portion.

前記連結金具は、前記空所部から尾端部に向けて開口部を設けており、前記保持手段は、前記筒部から延設された取付部を前記開口部に挿入することにより設置されている。 The connecting fitting has an opening from the cavity portion toward the tail end, and the retaining means is installed by inserting an attachment portion extending from the tubular portion into the opening.

本発明によれば、連結部材１２に設けられた楔付きの連結金具１５、１５を所定間隔で立設された支柱１１のフランジ１３に接続する作業が簡単容易である。 According to the present invention, the work of connecting the wedge-equipped connecting fittings 15, 15 provided on the connecting member 12 to the flanges 13 of the support posts 11 erected at a predetermined interval is simple and easy.

従来技術を示しており、（Ａ）は連結金具の受入部にフランジを進入させた状態を示す断面図、（Ｂ）は楔部材を打ち込んだ後の緊結状態を示す断面図である。1A is a cross-sectional view showing a state in which a flange has been inserted into a receiving portion of a connecting fitting according to the prior art, and FIG. 1B is a cross-sectional view showing a fastened state after a wedge member has been driven in. 本発明の第１実施形態に関して、連結金具と保持手段と楔部材を分離させた状態で示す斜視図である。FIG. 2 is a perspective view showing the first embodiment of the present invention, with the connecting fitting, the holding means, and the wedge member separated from each other. 第１実施形態に関して、保持手段を装備した連結金具の断面を示すと共に楔部材を分離させた状態で示す側面図である。FIG. 2 is a side view showing a cross section of a connector fitted with a retaining means and with the wedge member separated, according to the first embodiment; 保持手段の取付方法を示し、（Ａ）は連結金具に向けて保持手段を装入する前の状態を正面側から示す斜視図、（Ｂ）は保持手段を装入した状態を正面側から示す斜視図である。13A is a front perspective view showing the state before the retaining means is inserted into the connecting fitting, and FIG. 13B is a front perspective view showing the state after the retaining means is inserted. 保持手段の取付方法を示し、（Ａ）は連結金具に向けて保持手段を装入する前の状態を背面側から示す斜視図、（Ｂ）は保持手段を装入した状態を背面側から示す斜視図である。13A shows a method of installing the retaining means, and FIG. 13B is a perspective view from the rear side showing the state before the retaining means is inserted into the connecting fitting, and FIG. 13B is a perspective view from the rear side showing the state after the retaining means has been inserted. 楔部材の枝部の縦断面を示し、（Ａ）は枝部の断面形状を示す縦断面図、（Ｂ）は楔部材が待機位置（Ｐ１）に位置した状態で保持手段の弾性保持部により枝部の遊動領域が摘持された状態を示す縦断面図、（Ｃ）は楔部材が退避位置（Ｐ０）に位置した状態で保持手段の弾性保持部により枝部の遊動領域が摘持された状態を示す縦断面図、（Ｄ）は保持手段の弾性保持部が枝部の下部領域を弾接保持した状態を示す縦断面図である。1 shows longitudinal cross sections of a branch of a wedge member, where (A) is a longitudinal cross section showing the cross-sectional shape of the branch, (B) is a longitudinal cross section showing the state in which the free region of the branch is pinched by the elastic retaining portion of the holding means when the wedge member is located in the standby position (P1), (C) is a longitudinal cross section showing the state in which the free region of the branch is pinched by the elastic retaining portion of the holding means when the wedge member is located in the retracted position (P0), and (D) is a longitudinal cross section showing the state in which the elastic retaining portion of the holding means elastically holds the lower region of the branch. 楔部材が待機位置（Ｐ１）で静止した状態の連結金具と、支柱のフランジを示す断面図である。1 is a cross-sectional view showing a connecting fitting and a flange of a support pillar in a state in which a wedge member is stationary in a standby position (P1). FIG. 待機位置（Ｐ１）で静止した楔部材の枝部と保持手段の弾性保持部の関係を示し、（Ａ）は斜視図、（Ｂ）は縦断面図である。1A and 1B are diagrams showing the relationship between the branch portions of the wedge member stationary at the standby position (P1) and the elastic holding portion of the holding means, with FIG. 楔部材が退避位置（Ｐ０）に退避させられた状態の連結金具と、支柱のフランジを示す断面図である。13 is a cross-sectional view showing the connecting fitting and the flange of the support pillar in a state in which the wedge member has been retracted to the retracted position (P0). FIG. 退避位置（Ｐ０）に退避させられた楔部材の枝部と保持手段の弾性保持部の関係を示し、（Ａ）は斜視図、（Ｂ）は縦断面図である。13A and 13B are diagrams showing the relationship between the branch portions of the wedge member retracted to the retracted position (P0) and the elastic retaining portion of the retaining means, in which FIG. 楔部材が退避位置（Ｐ０）から待機位置（Ｐ１）に下降して静止することにより下端部を緊結孔に係止した状態の連結金具と、支柱のフランジを示す断面図である。This is a cross-sectional view showing the connecting fitting and the flange of the support in a state in which the wedge member has descended from the retracted position (P0) to the standby position (P1) and come to rest, thereby engaging the lower end portion with the fastening hole. 退避位置（Ｐ０）から待機位置（Ｐ１）に下降して静止した楔部材の枝部と保持手段の弾性保持部の関係を示し、（Ａ）は斜視図、（Ｂ）は縦断面図である。1A and 1B show the relationship between the branch portion of the wedge member that has descended from the retracted position (P0) to the standby position (P1) and stopped and the elastic holding portion of the holding means, with FIG. 楔部材が緊結位置（Ｐ２）に下動させられた状態の連結金具と、支柱のフランジを示す断面図である。A cross-sectional view showing the connecting fitting and the flange of the support pillar in a state in which the wedge member has been lowered to the fastening position (P2). 緊結位置（Ｐ２）に下動させられた楔部材の枝部と保持手段の弾性保持部の関係を示し、（Ａ）は斜視図、（Ｂ）は縦断面図である。13A and 13B are diagrams showing the relationship between the branch portion of the wedge member that has been lowered to the fastening position (P2) and the elastic holding portion of the holding means, with FIG. 楔部材が解体位置（Ｐ３）に上動させられた状態の連結金具と、支柱のフランジを示す断面図である。A cross-sectional view showing the connecting fitting and the flange of the support pillar in a state in which the wedge member has been moved upward to the disassembly position (P3). 解体位置（Ｐ３）に上動させられた楔部材の枝部と保持手段の弾性保持部の関係を示し、（Ａ）は斜視図、（Ｂ）は縦断面図である。13A and 13B show the relationship between the branch portion of the wedge member that has been moved upward to the disassembly position (P3) and the elastic holding portion of the holding means, with FIG. 本発明の第２実施形態に関して、（Ａ）は楔部材と保持手段を示す斜視図、（Ｂ）は楔部材を下方から見た斜視図、（Ｃ）は保持手段の拡大斜視図である。11A is a perspective view showing a wedge member and a holding means according to a second embodiment of the present invention, FIG. 11B is a perspective view of the wedge member as viewed from below, and FIG. 11C is an enlarged perspective view of the holding means. 第２実施形態に関し、楔部材が待機位置（Ｐ１）で静止した状態の連結金具と、支柱のフランジを示す断面図である。13 is a cross-sectional view showing the connecting fitting and the flange of the support pillar in a state in which the wedge member is stationary in the standby position (P1) in the second embodiment. FIG. 待機位置（Ｐ１）で静止した楔部材の枝部と保持手段の弾性保持部の関係を示し、（Ａ）は斜視図、（Ｂ）は縦断面図である。1A and 1B are diagrams showing the relationship between the branch portions of the wedge member stationary at the standby position (P1) and the elastic holding portion of the holding means, with FIG. 楔部材を待機位置（Ｐ１）に静止させた状態の連結金具と、支柱のフランジの関係を示し、（Ａ）は受入部に向けて突出した楔本体部の下端部とフランジを示す断面図、（Ｂ）は楔本体部の下端部に形成されたガイド部と係止部を示す断面図である。The figure shows the relationship between the connecting fitting and the flange of the support pillar when the wedge member is stationary in the standby position (P1), where (A) is a cross-sectional view showing the lower end of the wedge main body portion protruding toward the receiving portion and the flange, and (B) is a cross-sectional view showing the guide portion and locking portion formed at the lower end of the wedge main body portion. 楔部材を待機位置（Ｐ１）に静止させた状態で連結金具を支柱のフランジに向けて移動させ、フランジを楔本体部の下端部に当接させた状態を示す断面図である。13 is a cross-sectional view showing the state in which, with the wedge member stationary in the standby position (P1), the connecting fitting is moved toward the flange of the support pillar, causing the flange to abut against the lower end of the wedge main body. FIG. 楔部材を待機位置（Ｐ１）に静止させた状態で連結金具を支柱のフランジに向けて移動させ、フランジを楔本体部の下端部に当接させた状態を示す平面図である。13 is a plan view showing the state in which, with the wedge member stationary in the standby position (P1), the connecting fitting is moved toward the flange of the support pillar and the flange is brought into contact with the lower end of the wedge main body. FIG. 楔部材が退避位置（Ｐ０）に退避させられた状態の連結金具と、支柱のフランジを示す断面図である。13 is a cross-sectional view showing the connecting fitting and the flange of the support pillar in a state in which the wedge member has been retracted to the retracted position (P0). FIG. 退避位置（Ｐ０）に退避させられた楔部材の枝部と保持手段の弾性保持部の関係を示し、（Ａ）は斜視図、（Ｂ）は縦断面図である。13A and 13B are diagrams showing the relationship between the branch portions of the wedge member retracted to the retracted position (P0) and the elastic retaining portion of the retaining means, in which FIG. 楔部材が退避位置（Ｐ０）から待機位置（Ｐ１）に下降して静止することにより下端部を緊結孔に係止した状態の連結金具と、支柱のフランジを示す断面図である。This is a cross-sectional view showing the connecting fitting and the flange of the support in a state in which the wedge member has descended from the retracted position (P0) to the standby position (P1) and come to rest, thereby engaging the lower end portion with the fastening hole. 退避位置（Ｐ０）から待機位置（Ｐ１）に下降して静止した楔部材の枝部と保持手段の弾性保持部の関係を示し、（Ａ）は斜視図、（Ｂ）は縦断面図である。1A and 1B show the relationship between the branch portion of the wedge member that has descended from the retracted position (P0) to the standby position (P1) and stopped and the elastic holding portion of the holding means, with FIG. 楔部材が緊結位置（Ｐ２）に下動させられた状態の連結金具と、支柱のフランジを示す断面図である。A cross-sectional view showing the connecting fitting and the flange of the support pillar in a state in which the wedge member has been lowered to the fastening position (P2). 緊結位置（Ｐ２）に下動させられた楔部材の枝部と保持手段の弾性保持部の関係を示し、（Ａ）は斜視図、（Ｂ）は縦断面図である。13A and 13B are diagrams showing the relationship between the branch portion of the wedge member that has been lowered to the fastening position (P2) and the elastic holding portion of the holding means, with FIG. 楔部材が解体位置（Ｐ３）に上動させられた状態の連結金具と、支柱のフランジを示す断面図である。A cross-sectional view showing the connecting fitting and the flange of the support pillar in a state in which the wedge member has been moved upward to the disassembly position (P3). 解体位置（Ｐ３）に上動させられた楔部材の枝部と保持手段の弾性保持部の関係を示し、（Ａ）は斜視図、（Ｂ）は縦断面図である。13A and 13B show the relationship between the branch portion of the wedge member that has been moved upward to the disassembly position (P3) and the elastic holding portion of the holding means, with FIG. 本発明の第３実施形態に関して、楔部材が待機位置（Ｐ１）で静止した状態の連結金具と、支柱のフランジを示す断面図である。FIG. 11 is a cross-sectional view showing a connecting fitting and a flange of a support pillar in a state in which a wedge member is stationary in a standby position (P1) according to a third embodiment of the present invention. 第２実施形態に関して、上顎部の載置面をフランジに載置するときの作用を示し、（Ａ）は楔部材の下端部の下側空間を介してフランジを受入部に進入させている状態を示す断面図、（Ｂ）は上顎部の載置面をフランジに載置した状態を示す断面図である。Regarding the second embodiment, the action when the mounting surface of the upper jaw is placed on the flange is shown, where (A) is a cross-sectional view showing the state in which the flange is entering the receiving portion through the lower space of the lower end of the wedge member, and (B) is a cross-sectional view showing the state in which the mounting surface of the upper jaw is placed on the flange. 本発明の第４実施形態に関して、楔部材が待機位置（Ｐ１）で静止した状態の連結金具と、支柱のフランジを示す断面図である。FIG. 11 is a cross-sectional view showing a connecting fitting and a flange of a support pillar in a state in which a wedge member is stationary in a standby position (P1), relating to a fourth embodiment of the present invention. 第４実施形態に関して、枝部の静止領域と弾性保持手段の保持部の相互関係を示し、（Ａ）は斜視図、（Ｂ）は縦断面図である。13A and 13B are perspective and longitudinal sectional views showing the relationship between the resting areas of the branches and the retaining portions of the elastic retaining means according to the fourth embodiment. 第４実施形態に関して、上顎部の載置面をフランジに載置するときの作用を示しており、（Ａ）は楔部材の下端部の下側空間を介してフランジを受入部に進入させている状態を示す断面図、（Ｂ）は上顎部の載置面をフランジに載置した状態を示す断面図である。Regarding the fourth embodiment, the action when the mounting surface of the upper jaw portion is placed on the flange is shown, where (A) is a cross-sectional view showing the state in which the flange is entering the receiving portion through the lower space of the lower end portion of the wedge member, and (B) is a cross-sectional view showing the state in which the mounting surface of the upper jaw portion is placed on the flange.

以下図面に基づいて本発明の好ましい実施形態を詳述する。 A preferred embodiment of the present invention will be described in detail below with reference to the drawings.

＜基本的構成＞
図２ないし図６は、本発明の基本的構成を示している。 <Basic structure>
2 to 6 show the basic configuration of the present invention.

図示のように、楔緊結装置は、例えば仮設足場における支柱１１と横架材等の連結部材１２を着脱自在に連結するための装置であり、支柱１１の長手方向に間隔をあけて固設したフランジ１３に設けた緊結孔１４に対して、連結部材１２の端部に固設した連結金具１５を楔部材１６により緊結するように構成されている。 As shown in the figure, the wedge fastening device is a device for detachably connecting a support 11 and a connecting member 12, such as a cross member, in temporary scaffolding, and is configured to fasten a connecting fitting 15 fixed to the end of the connecting member 12 with a wedge member 16 to fastening holes 14 provided in flanges 13 fixed at intervals along the longitudinal direction of the support 11.

連結金具１５は、連結部材１２に固設される基部１７から上顎部１８と下顎部１９を延設することにより、上下顎部の間に受入部２０を形成しており、上下顎部にそれぞれ上側の挿通孔２１と下側の挿通孔２２を設けており、受入部２０にフランジ１３を進入させたとき、フランジの緊結孔１４と上下顎部の挿通孔２１、２２を上下方向に連通させるように形成されている。尚、上顎部１８と下顎部１９の先端には、支柱１１の周面に沿う円弧面により形成された当接部１８ａ、１９ａが設けられている。 The connecting fitting 15 extends the upper jaw 18 and the lower jaw 19 from the base 17 fixed to the connecting member 12, forming a receiving portion 20 between the upper and lower jaws, with an upper insertion hole 21 and a lower insertion hole 22 provided in the upper and lower jaws, respectively, so that when the flange 13 is inserted into the receiving portion 20, the fastening hole 14 of the flange and the insertion holes 21, 22 of the upper and lower jaws are vertically connected. In addition, the tips of the upper jaw 18 and the lower jaw 19 are provided with abutment portions 18a, 19a formed by arcuate surfaces that follow the circumferential surface of the support 11.

楔部材１６は、前記の各孔２１、１４、２２に挿通自在な厚さの盤状体より形成され、上下方向の中間部により楔部２３を構成し、該楔部２３の上下に頭部２４と脚部２５を設けており、前記楔部２３は、腹部２３ａと背部２３ｂの間の幅寸法を下方に向けて次第に幅狭とするように形成されている。この際、腹部２３ａは、支柱１１の軸線にほぼ平行となるように形成され、これに対して背部２３ｂが傾斜するように形成されている。前記頭部２４は、脚部２５よりも分厚いブロック状に形成されている。 The wedge member 16 is formed from a plate-like body with a thickness that allows it to be freely inserted into each of the holes 21, 14, and 22, and the vertical middle portion forms a wedge portion 23, with a head portion 24 and legs 25 provided above and below the wedge portion 23, and the wedge portion 23 is formed so that the width between the abdomen 23a and the back portion 23b gradually narrows downward. In this case, the abdomen 23a is formed so as to be approximately parallel to the axis of the support 11, and the back portion 23b is formed so as to be inclined with respect to it. The head portion 24 is formed in a block shape that is thicker than the legs 25.

後述するように、連結金具１５の受入部２０にフランジ１３を進入させ、フランジの緊結孔１４の上下に上下顎部１８、１９の挿通孔２１、２２を臨ませ、これらの孔に楔部材１６を上から下に向けて挿通させた状態で、ハンマー等により殴打して下動させると、楔部材１６が緊結孔１４の接支縁部１４ａと挿通孔２１、２２の受縁部２１ａ、２２ａの間に圧入され、接支縁部４ａと受縁部２１ａ、２２ａの間隔を押し広げながら、連結金具１５を支柱１１に向けて前進移動させることにより、上下顎部１８、１９の当接部１８ａ、１９ａを支柱１１の表面に圧接状態で当接させる。これにより、フランジ１３と楔部材１６と連結金具１５と支柱１１の相互間における緊結状態が得られる。 As described later, the flange 13 is inserted into the receiving portion 20 of the connecting fitting 15, and the insertion holes 21, 22 of the upper and lower jaws 18, 19 are placed above and below the fastening hole 14 of the flange. The wedge member 16 is inserted from top to bottom into these holes, and then struck downward with a hammer or the like. The wedge member 16 is pressed into between the support edge 14a of the fastening hole 14 and the receiving edges 21a, 22a of the insertion holes 21, 22, and the connecting fitting 15 is moved forward toward the support 11 while pushing apart the space between the support edge 4a and the receiving edges 21a, 22a, causing the abutment portions 18a, 19a of the upper and lower jaws 18, 19 to abut against the surface of the support 11 in a pressed state. This results in a fastened state between the flange 13, the wedge member 16, the connecting fitting 15, and the support 11.

そして、この緊結状態から、ハンマーによる殴打等により楔部材１６を上動させると、緊結状態が解除される。 Then, from this tightened state, if the wedge member 16 is moved upward by hitting it with a hammer, the tightened state is released.

図２及び図３に示すように、連結金具１５は、基部１７の内部に前記受入部２０に隣接する空所部２６を形成し、該空所部２６から尾端部に向けて開口する開口部２７を備え、前記空所部２６の上下に位置して上側案内孔２８と下側案内孔２９を設けている。 As shown in Figures 2 and 3, the connecting fitting 15 has a void 26 formed inside the base 17 adjacent to the receiving portion 20, an opening 27 that opens from the void 26 toward the tail end, and an upper guide hole 28 and a lower guide hole 29 located above and below the void 26.

前記受入部２０は、上顎部１８の下面に形成された載置面３０と、下顎部１９の上面により、上下から区成されると共に、受入部２０の奥部に位置して載置面３０から下向きの受止め部３１を形成している。 The receiving section 20 is bounded from above and below by a mounting surface 30 formed on the underside of the upper jaw section 18 and the upper surface of the lower jaw section 19, and forms a receiving stopper section 31 located at the back of the receiving section 20 and facing downward from the mounting surface 30.

楔部材１６は、頭部２４及び脚部２５を備えており該脚部２５を挿通孔２１、２２に挿通される楔本体部１６Ａと、前記案内孔２８、２９に挿通される枝部１６Ｂを並設一体化している。尚、楔本体部１６Ａと枝部１６Ｂは、脚部２５と枝部１６Ｂの上端部を相互に連結する横向きの連結部１６Ｃを介して一体化され、楔部材１６の全体が鍛造等により成形されている。 The wedge member 16 has a head 24 and legs 25, and the legs 25 are arranged side by side to form a wedge body 16A that is inserted into the insertion holes 21 and 22, and a branch 16B that is inserted into the guide holes 28 and 29. The wedge body 16A and the branch 16B are integrated via a horizontal connecting portion 16C that connects the upper ends of the legs 25 and the branch 16B to each other, and the entire wedge member 16 is formed by forging or the like.

（保持手段の構成）
前記連結金具１５の空所部２６には保持手段３２が設けられている。保持手段３２は、板バネを折曲することにより形成され、上下の案内孔２８、２９の間において楔部材１６の枝部１６Ｂを挿通させる角筒部３３と、前記角筒部３３から延設され枝部１６Ｂの両側面に臨む一対の舌片により形成された弾性保持部３４、３４と、前記角筒部３３から延設され前記基部１７の開口部２７の内部で自己保持される取付部３５を備えている。 (Configuration of holding means)
A retaining means 32 is provided in the hollow portion 26 of the connecting fitting 15. The retaining means 32 is formed by bending a leaf spring, and includes a square tube portion 33 through which the branch portion 16B of the wedge member 16 is inserted between the upper and lower guide holes 28, 29, elastic retaining portions 34, 34 formed by a pair of tongue pieces extending from the square tube portion 33 and facing both side surfaces of the branch portion 16B, and an attachment portion 35 extending from the square tube portion 33 and self-retained inside the opening 27 of the base 17.

図４及び図５に示すように、前記取付部３５は、角筒部３３から延設方向に向けて次第に間隔を広げるようにＶ形に配置された一対の翼片３６、３６により形成され、翼片３６の上下に直線縁部３６ａ、３６ｂを備えている。これに対して、前記基部１７の開口部２７は、上下に平坦面２７ａ、２７ｂを形成している。 As shown in Figures 4 and 5, the mounting portion 35 is formed by a pair of wings 36, 36 arranged in a V shape so that the distance between them gradually increases in the extension direction from the square tube portion 33, and has straight edge portions 36a, 36b on the top and bottom of the wings 36. In contrast, the opening 27 of the base 17 forms flat surfaces 27a, 27b on the top and bottom.

これにより、保持手段３２は、空所部２６から開口部２７に向けて取付部３５を挿入することにより、翼片３６の直線縁部３６ａ、３６ｂが開口部２７の平坦面２７ａ、２７ｂに沿わされた状態で安定設置される。そして、後述のように、角筒部３３に楔部材１６の枝部１６Ｂが挿通されるので、保持手段３２は、取付けのためのビス等の固着手段を必要とせず、空所部２６に自己保持される。 As a result, by inserting the mounting portion 35 from the void portion 26 toward the opening portion 27, the holding means 32 is stably installed with the straight edge portions 36a, 36b of the wing piece 36 aligned with the flat surfaces 27a, 27b of the opening portion 27. Then, as described below, the branch portion 16B of the wedge member 16 is inserted into the square tube portion 33, so that the holding means 32 is self-retained in the void portion 26 without requiring any fastening means such as screws for installation.

（楔部材の構成）
楔部材１６は、楔本体部１６Ａの脚部２５を上下の挿通孔２１、２２に挿通自在とされると共に、枝部１６Ｂを上下の案内孔２８、２９と保持手段３２の角筒部３３に挿通されており、該枝部１６Ｂの下端部に挿着されたリベットの頭部等により抜止め手段４３が形成されている。 (Configuration of the wedge member)
The wedge member 16 has legs 25 of the wedge main body 16A which can be freely inserted into the upper and lower insertion holes 21, 22, and the branch 16B is inserted into the upper and lower guide holes 28, 29 and the square tube portion 33 of the retaining means 32, and a pull-out prevention means 43 is formed by the head of a rivet or the like inserted into the lower end of the branch 16B.

従って、楔部材１６は、連結部１６Ｃが上側の挿通孔２１と案内孔２８の間に進入する位置（図１３参照）まで、下降することが可能であり、作業者が指先等で摘まむことにより引き上げたときは、抜止め手段４３が下側の案内孔２９の縁部に接する位置（図１５参照）まで、上昇することが可能である。 Therefore, the wedge member 16 can be lowered to a position where the connecting portion 16C enters between the upper insertion hole 21 and the guide hole 28 (see Figure 13), and when the operator pulls it up by pinching it with his or her fingertips, the wedge member 16 can be raised to a position where the anti-pullout means 43 contacts the edge of the lower guide hole 29 (see Figure 15).

前記枝部１６Ｂは、上下方向の中間部に位置して前記弾性保持部３４、３４により上下動自在に摘持される遊動領域４０を設けており、該遊動領域４０の上端に設けた下向き凸状段部によりストッパ部３７、３７を形成し、下端に設けた上向き凸状段部により保持受部３９、３９を形成している。 The branch portion 16B has a free movement area 40 located in the vertical middle and pinched by the elastic holding portions 34, 34 so that it can move up and down freely. The downward convex step provided at the upper end of the free movement area 40 forms the stopper portion 37, 37, and the upward convex step provided at the lower end forms the holding portion 39, 39.

図６（Ａ）に示すように、楔部材１６の枝部１６Ｂは、上下方向の中間部に位置して幅方向の肉厚を（Ｗ１）で示すように薄く形成した遊動領域４０を上下距離（Ｌ）にわたり形成し、該遊動領域４０の上端に下向き凸状の段部として形成されたストッパ部３７を設けると共に、下端に上向き凸状の段部として形成された保持受部３９を形成している。ストッパ部３７の上側には前記遊動領域４０の肉厚（Ｗ１）よりも厚肉（Ｗ２）とされた上部領域４１が形成され、保持受部３９の下側には前記遊動領域４０の肉厚（Ｗ１）よりも厚肉の（Ｗ３）とされた下部領域４２が形成されている。 As shown in FIG. 6(A), the branch 16B of the wedge member 16 is located in the vertical middle and forms a free movement area 40 with a thin widthwise thickness (W1) over a vertical distance (L). The upper end of the free movement area 40 is provided with a stopper portion 37 formed as a downwardly convex step, and the lower end is formed with a retaining portion 39 formed as an upwardly convex step. Above the stopper portion 37 is formed an upper region 41 that is thicker (W2) than the thickness (W1) of the free movement area 40, and below the retaining portion 39 is formed a lower region 42 that is thicker (W3) than the thickness (W1) of the free movement area 40.

楔部材１６が図６（Ｂ）（Ｃ）に示す位置にあるとき、保持手段３２の角筒部３３に挿通された枝部１６Ｂは、弾性保持部３４、３４により、遊動領域４０が上下動自在に摘持されている。「摘持」とは、弾性保持部３４が遊動領域４０に臨むことにより、楔部材１６の自重による落下力Ｇに対して、弾性保持部３４、３４の保持力Ｆ１が小さい又は保持力を作用させない状態、つまり、弾性保持部３４と遊動領域４０の間においては、落下力Ｇを受止めることができない状態を意味している。従って、弾性保持部３４、３４は、遊動領域４０の表面に接触せずに隙間を介して臨まされ、ストッパ部３７を該弾性保持部３４に載置状態で当接させることにより、楔部材１６を静止させるように構成したものでも良い。 When the wedge member 16 is in the position shown in Fig. 6 (B) (C), the branch portion 16B inserted into the square tube portion 33 of the holding means 32 is pinched by the elastic holding portions 34, 34 so that the free movement area 40 can move up and down. "Pinching" means that the elastic holding portion 34 faces the free movement area 40, and the holding force F1 of the elastic holding portions 34, 34 is small or does not act against the falling force G caused by the weight of the wedge member 16, that is, the falling force G cannot be received between the elastic holding portion 34 and the free movement area 40. Therefore, the elastic holding portions 34, 34 may be configured to face the surface of the free movement area 40 through a gap without contacting it, and the stopper portion 37 may be abutted against the elastic holding portion 34 in a resting state to stop the wedge member 16.

これにより、前記弾性保持部３４、３４は、前記ストッパ部３７、３７を受止めた状態で、楔部材１６を自重で下降しないように停止させるが、楔部材１６に下向きの力が与えられたとき、前記ストッパ部３７、３７により押し広げられ、該ストッパ部３７、３７を通過させることにより楔部材１６の下動を許すように構成されている。 As a result, the elastic retaining portions 34, 34, when holding the stopper portions 37, 37, stop the wedge member 16 from descending under its own weight, but when a downward force is applied to the wedge member 16, the stopper portions 37, 37 push the wedge member 16 apart, allowing it to pass through the stopper portions 37, 37 and move downward.

反対に、前記弾性保持部３４、３４が前記遊動領域４０に臨まされた状態で枝部１６Ｂを上昇したとき、前記保持受部３９、３９が前記弾性保持部３４、３４に当接するが、楔部材１６に上向きの力が与えられたとき、前記弾性保持部３４、３４が前記保持受部３９、３９により押し広げられ、該保持受部３９、３９を通過させることにより楔部材１６の上動を許すように構成されている。 On the other hand, when the branch portion 16B is raised with the elastic retaining portions 34, 34 facing the free movement area 40, the retaining receiving portions 39, 39 come into contact with the elastic retaining portions 34, 34, but when an upward force is applied to the wedge member 16, the elastic retaining portions 34, 34 are pushed apart by the retaining receiving portions 39, 39, and are allowed to pass through the retaining receiving portions 39, 39, thereby allowing the wedge member 16 to move upward.

＜基本的構成に基づく実施形態＞
楔部材１６と保持手段３２の基本的構成は、上述のような枝部１６Ｂにおける遊動領域４０並びにストッパ部３７、３７及び保持受部３９、３９と、弾性保持部３４、３４の関係に基づいて構成されている。そこで、このような基本的構成を具体的に連結金具１５に適用した場合の実施形態を以下に説明する。しかしながら、本発明が図示の実施形態に限定されないことを理解されたい。 <Embodiments Based on Basic Configuration>
The basic configuration of the wedge member 16 and the retaining means 32 is based on the relationship between the loose area 40 of the branch portion 16B, the stopper portions 37, 37 and the retaining receiving portions 39, 39, and the elastic retaining portions 34, 34 as described above. Therefore, an embodiment in which such a basic configuration is specifically applied to the connecting fitting 15 will be described below. However, it should be understood that the present invention is not limited to the illustrated embodiment.

＜第１実施形態＞
図７ないし図１６は、第１実施形態を示している。上下方向の移動位置に関して、楔部材１６は、脚部２５の下端部２５ｅが上顎部１８の載置面３０と面一とされる位置を退避位置（Ｐ０）（図９参照）とし、該下端部２５ｅが載置面３０から下向きに距離（ｔ）だけ突出させられる位置を待機位置（Ｐ１）（図７及び図１１参照）とし、待機位置から下動してフランジ１３の緊結孔１４に打ち込み緊結された位置を緊結位置（Ｐ２）（図１３参照）とし、前記抜止め手段４３が下側の案内孔２９の縁部に当接した状態とされ下端部２５ｅが載置面３０よりも上方に移動した位置を解体位置（Ｐ３）（図１５参照）としている。 First Embodiment
7 to 16 show the first embodiment. Regarding the vertical movement positions, the wedge member 16 has a retracted position (P0) (see FIG. 9) where the lower end 25e of the leg 25 is flush with the mounting surface 30 of the upper jaw 18, a standby position (P1) (see FIG. 7 and FIG. 11) where the lower end 25e is protruded downward from the mounting surface 30 by a distance (t), a fastening position (P2) (see FIG. 13) where the wedge member 16 moves downward from the standby position and is fastened by being driven into the fastening hole 14 of the flange 13, and a dismantling position (P3) (see FIG. 15) where the lower end 25e is moved above the mounting surface 30 with the retaining means 43 in contact with the edge of the lower guide hole 29.

待機位置（Ｐ１）とされたとき、載置面３０から下向きに突出させられた楔本体部１６Ａの下端部２５ｅには、ガイド部３８が形成されている（図７参照）。後述するように、ガイド部３８は、連結金具１５をフランジ１３に向けて近接移動させたとき、フランジ１３の縁部に当接して乗り上げ方向に案内するガイド面を構成している。従って、フランジ１３の縁部が当接される部位に位置して形成されている。そこで、ガイド部３８は、前記下向きに突出する距離（ｔ）の全体にわたり形成することが好ましいが、下端部２５ｅの先端近傍にのみ形成しても良い。第１実施形態において、ガイド部３８は、図例の場合、円弧面により形成されているが、傾斜面により形成しても良い。 When the wedge body 16A is in the standby position (P1), the lower end 25e of the wedge body 16A protruding downward from the mounting surface 30 is formed with a guide portion 38 (see FIG. 7). As described later, the guide portion 38 constitutes a guide surface that contacts the edge of the flange 13 and guides the flange 13 in the climbing direction when the connecting fitting 15 is moved toward the flange 13. Therefore, the guide portion 38 is formed at a position where the edge of the flange 13 contacts. Therefore, the guide portion 38 is preferably formed over the entire downward protruding distance (t), but may be formed only near the tip of the lower end 25e. In the first embodiment, the guide portion 38 is formed by an arc surface in the illustrated example, but may be formed by an inclined surface.

待機位置（Ｐ１）に関して、図７に示すように、フランジ１３の厚さ（Ｔ）と受入部２０の上下幅（Ｈ）は、Ｈ＞ｔとなるように構成され、これに対して、前記下向きに突出する距離（ｔ）は、Ｔ＞ｔとなるように構成されている。図示実施形態の場合、楔本体部１６Ａの下端部２５ｅと下顎部１９の間の空間の高さ（ｈ）は、フランジ１３の厚さ（Ｔ）に対して、Ｔ＜ｈとするように構成されているが、ｈ＜Ｔ＜ｈ＋ｔとするように構成しても良い。 Regarding the standby position (P1), as shown in FIG. 7, the thickness (T) of the flange 13 and the vertical width (H) of the receiving portion 20 are configured to be H>t, and the downward protruding distance (t) is configured to be T>t. In the illustrated embodiment, the height (h) of the space between the lower end 25e of the wedge body portion 16A and the lower jaw portion 19 is configured to be T<h with respect to the thickness (T) of the flange 13, but may be configured to be h<T<h+t.

（枝部の構成）
図６（Ａ）に示すように、楔部材１６の枝部１６Ｂは、上下方向の中間部に位置して幅方向の肉厚を（Ｗ１）で示すように薄く形成した遊動領域４０を上下距離（Ｌ）にわたり形成し、該遊動領域４０の上端に下向き凸状の段部として形成されたストッパ部３７を設けると共に、下端に上向き凸状の段部として形成された保持受部３９を形成している。ストッパ部３７の上側には前記遊動領域４０の肉厚（Ｗ１）よりも厚肉（Ｗ２）とされた上部領域４１が形成され、保持受部３９の下側には前記遊動領域４０の肉厚（Ｗ１）よりも厚肉の（Ｗ３）とされた下部領域４２が形成されている。 (Structure of the branch)
6A, the branch 16B of the wedge member 16 forms a free movement region 40 located in the vertical middle and formed to be thin in width direction as indicated by (W1) over a vertical distance (L), and a stopper portion 37 formed as a downwardly convex step is provided at the upper end of the free movement region 40, and a holding portion 39 formed as an upwardly convex step is formed at the lower end. An upper region 41 having a thickness (W2) thicker than the thickness (W1) of the free movement region 40 is formed above the stopper portion 37, and a lower region 42 having a thickness (W3) thicker than the thickness (W1) of the free movement region 40 is formed below the holding portion 39.

図６（Ｂ）（Ｃ）に示すように、楔部材１６が待機位置（Ｐ１）及び退避位置（Ｐ０）に位置しているとき、保持手段３２の角筒部３３に挿通された枝部１６Ｂは、弾性保持部３４、３４により、遊動領域４０が上下動自在に摘持されている。「摘持」とは、弾性保持部３４が遊動領域４０に臨むことにより、楔部材１６の自重による落下力Ｇに対して、弾性保持部３４、３４の保持力Ｆ１が小さい又は保持力を作用させない状態、つまり、弾性保持部３４と遊動領域４０の間においては、落下力Ｇを受止めることができない状態を意味している。従って、弾性保持部３４、３４は、遊動領域４０の表面に接触せずに隙間を介して臨まされ、ストッパ部３７を該弾性保持部３４に載置状態で当接させることにより、楔部材１６を静止させるように構成したものでも良い。 6(B) and (C), when the wedge member 16 is in the standby position (P1) and the retracted position (P0), the branch portion 16B inserted into the square tube portion 33 of the holding means 32 is pinched by the elastic holding portions 34, 34 so that the free movement area 40 can move up and down. "Pinching" means that the elastic holding portion 34 faces the free movement area 40, and the holding force F1 of the elastic holding portions 34, 34 is small or does not act against the falling force G due to the weight of the wedge member 16, that is, the falling force G cannot be received between the elastic holding portion 34 and the free movement area 40. Therefore, the elastic holding portions 34, 34 may be configured to face the surface of the free movement area 40 through a gap without contacting it, and the stopper portion 37 may be abutted against the elastic holding portion 34 in a resting state to stop the wedge member 16.

このため、図６（Ｂ）に示すように、枝部１６Ｂは、自重で下降するが、ストッパ部３７が弾性保持部３４に載置された状態で当接したとき、該弾性保持部３４により受止められ、その受止められた位置を待機位置（Ｐ１）として、楔部材１６を停止させるように構成されている。 For this reason, as shown in FIG. 6(B), the branch portion 16B descends under its own weight, but when the stopper portion 37 abuts on the elastic retaining portion 34 while placed on it, it is received by the elastic retaining portion 34, and the position where it is received is set as the standby position (P1), and the wedge member 16 is stopped.

従って、図６（Ｃ）に示すように、作業者が楔部材１６を指先で摘まむ等により、落下力Ｇに勝る引き上げ力Ｕを与えると、枝部１６Ｂも弾性保持部３４の抵抗を受けることなく簡単に上動する。図６（Ｃ）は、楔部材１６が退避位置（Ｐ０）に上動させられた状態を示しており、弾性保持部３４に向けて保持受部３９が近接又は当接させられている。 Therefore, as shown in Figure 6(C), when an operator applies a pulling force U greater than the dropping force G, for example by pinching the wedge member 16 with his or her fingertips, the branch portion 16B also moves upward easily without resistance from the elastic retaining portion 34. Figure 6(C) shows the state in which the wedge member 16 has been moved upward to the retracted position (P0), with the retaining portion 39 approaching or abutting against the elastic retaining portion 34.

しかしながら、退避位置（Ｐ０）に位置する状態から、前記引き上げ力（Ｕ）を解放すると、楔部材１６は、落下力Ｇにより下降し、ストッパ部３７が弾性保持部３４に当接することにより、待機位置（Ｐ１）で停止し、静止させられる。 However, when the lifting force (U) is released from the retracted position (P0), the wedge member 16 descends due to the falling force G, and the stopper portion 37 abuts against the elastic retaining portion 34, causing the wedge member 16 to stop and come to rest at the standby position (P1).

前記弾性保持部３４は、弾性変形させられるように、枝部１６Ｂに強い下向きの力が与えられたときは前記ストッパ部３７を通過させ、強い上向きの力が与えられたときは前記保持受部３９を通過させるように構成されている。 The elastic retaining portion 34 is configured to be elastically deformed so that when a strong downward force is applied to the branch portion 16B, it passes through the stopper portion 37, and when a strong upward force is applied, it passes through the retaining receiving portion 39.

従って、待機位置（Ｐ１）で静止している楔部材１６の頭部２４をハンマーの殴打等により強く押下すると、ストッパ部３７が弾性保持部３４を押し広げることにより通過し、楔部材１６を緊結位置（Ｐ２）に向けて下動する。このとき、弾性保持部３４は、厚肉（Ｗ２）とされた上部領域４１を弾接保持するが、この点により、本発明が限定されるものではない。 Therefore, when the head 24 of the wedge member 16, which is stationary in the waiting position (P1), is pressed down strongly by hitting it with a hammer, the stopper portion 37 passes through the elastic retaining portion 34 by pushing it apart, and the wedge member 16 moves downward toward the fastening position (P2). At this time, the elastic retaining portion 34 elastically retains the upper region 41, which is thick (W2), but the present invention is not limited to this point.

緊結位置（Ｐ２）で緊結状態とされた楔部材１６における枝部１６Ｂの下端部をハンマーの殴打等により強く押上すると、図６（Ｄ）に示すように、保持受部３９が弾性保持部３４を押し広げることにより通過し、楔部材１６を解体位置（Ｐ３）に向けて移動させる。このとき、弾性保持部３４は、下部領域４２を弾接保持する。この点は、本発明の好ましい構成であるが、必ずしも、これに限定されるものではない。尚、「弾接保持」とは、押し広げられることにより、落下力Ｇに勝る保持力Ｆ２を発生し、楔部材１６を解体位置（Ｐ３）に停止状態で保持することを意味している。 When the lower end of the branch 16B of the wedge member 16, which is fastened in the fastening position (P2), is pushed up strongly by hitting it with a hammer, the retaining receiver 39 passes through the elastic retaining portion 34 by pushing it apart, as shown in FIG. 6 (D), and moves the wedge member 16 towards the dismantling position (P3). At this time, the elastic retaining portion 34 elastically holds the lower region 42. This is a preferred configuration of the present invention, but is not necessarily limited to this. Note that "elastically held" means that by being pushed apart, a holding force F2 that is greater than the falling force G is generated, and the wedge member 16 is held in a stopped state at the dismantling position (P3).

（作用）
以下、上記のように構成された第１実施形態に係る緊結装置の作用を説明する。 (Action)
Hereinafter, the operation of the fastening device according to the first embodiment configured as above will be described.

（事前工程）
連結金具１５をフランジ１３に接続するに先立ち、楔部材１６は、図７及び図８に示すように、待機位置（Ｐ１）に位置させられている。 (Preliminary process)
Prior to connecting the connecting fitting 15 to the flange 13, the wedge member 16 is positioned in the standby position (P1) as shown in FIGS.

この際、もしも、楔部材１６が待機位置（Ｐ１）よりも大きく上方位置又は下方位置に移動させられており、保持手段３２の弾性保持部３４により枝部１６Ｂの下部領域４２又は上部領域４１が保持されているときは、作業者が手指等により下向き又は上向きに押して移動させてやれば、遊動領域４０が弾性保持部３４に対向する位置に来るや否や、弾性保持部３４が弾性変形状態から原形の常態に復帰するので、指先の感覚でその位置を感知することができる。 At this time, if the wedge member 16 has been moved to a position significantly above or below the standby position (P1) and the lower region 42 or upper region 41 of the branch portion 16B is held by the elastic holding portion 34 of the holding means 32, the operator can push it downward or upward with a finger or the like to move it, and as soon as the free movement region 40 comes to a position opposite the elastic holding portion 34, the elastic holding portion 34 will return from its elastically deformed state to its original normal state, allowing the operator to sense the position with the fingertip.

この状態で、楔部材１６は、遊動領域４０の上下距離（Ｌ）の範囲で上下に遊動自在であるが、自重によりストッパ部３７が弾性保持部３４に載置された状態で当接することにより静止しており、楔本体部１６Ａにおける脚部２５の下端部２５ｅを載置面３０から下向きに距離（ｔ）だけ突出させている。 In this state, the wedge member 16 can move freely up and down within the range of the vertical distance (L) of the free movement area 40, but is stationary due to its own weight, with the stopper portion 37 abutting against the elastic retaining portion 34 while placed on it, and the lower end portion 25e of the leg portion 25 of the wedge main body portion 16A protruding downward a distance (t) from the mounting surface 30.

（載置工程）
緊結作業を行うため、連結金具１５をフランジ１３の側方に臨ませた状態からフランジ１３に向けて横方向に移動させ、受入部２０にフランジ１３を進入させると共に、上顎部１８の載置面３０をフランジ１３に載置する工程を図９及び図１０に示している。 (Placement process)
To perform the fastening operation, the connecting fitting 15 is moved laterally from a position facing the side of the flange 13 toward the flange 13, the flange 13 is inserted into the receiving portion 20, and the supporting surface 30 of the upper jaw portion 18 is placed on the flange 13, as shown in Figures 9 and 10.

図７に示すように、楔部材１６を待機位置（Ｐ１）に位置させた状態で、連結金具１５をフランジ１３に向けて移動させ、フランジ１３の縁部を受入部２０に進入させる。このとき、楔部材１６は、上述のように保持手段３２の弾性保持部３４に対して枝部１６Ｂの遊動領域４０が移動自在とされている。 As shown in FIG. 7, with the wedge member 16 positioned in the standby position (P1), the connecting fitting 15 is moved toward the flange 13, and the edge of the flange 13 is inserted into the receiving portion 20. At this time, the wedge member 16 is free to move the free area 40 of the branch portion 16B relative to the elastic holding portion 34 of the holding means 32, as described above.

楔部材１６は、受入部２０に進入しようとするフランジ１３の縁部に対して、その進入を妨げる位置に楔本体部１６Ａの下端部２５ｅを位置させているが、ガイド部３８がフランジ１３の縁部に当接して乗り上げ方向に案内される。 The wedge member 16 is positioned such that the lower end 25e of the wedge body 16A is in a position that prevents the edge of the flange 13 from entering the receiving portion 20, but the guide portion 38 abuts against the edge of the flange 13 and guides it in the direction of climbing up.

従って、図９及び図１０に示すように、フランジ１３の縁部の当接を受けることにより、ガイド部３８を縁部に乗り上げさせながら、楔部材１６は、待機位置（Ｐ１）から退避位置（Ｐ０）に向けて移動するので、載置面３０をフランジ１３の上面に載置した状態で所定位置まで滑動させることができる。 Therefore, as shown in Figures 9 and 10, by receiving contact with the edge of the flange 13, the wedge member 16 moves from the standby position (P1) toward the retracted position (P0) while causing the guide portion 38 to ride up onto the edge, so that the mounting surface 30 can be slid to a predetermined position while being placed on the upper surface of the flange 13.

そこで、退避位置（Ｐ０）に位置する楔部材１６は、下端部２５ｅがフランジ１３の緊結孔１４に臨まされると、自重により下降し、図１１及び図１２に示すように、遊動領域４０の保持受部３７が弾性保持部３４に当接した位置、つまり、再び待機位置（Ｐ１）で停止し、静止させられる。 Then, when the lower end 25e of the wedge member 16, which is positioned in the retracted position (P0), faces the fastening hole 14 of the flange 13, it descends under its own weight and stops at the position where the retaining portion 37 of the free movement region 40 abuts against the elastic retaining portion 34, that is, at the standby position (P1) again, and is stationary, as shown in Figures 11 and 12.

このように、連結金具１５をフランジ１３に向けて移動させ、受入部２０にフランジ１３を進入させるだけで、楔部材１６が待機位置（Ｐ１）から退避位置（Ｐ０）に向けて自動的に退避することによりフランジ１３の進入を好適に行わせ、連結金具１５を所定位置に移動するだけで、楔部材１６が退避位置（Ｐ０）から再び待機位置（Ｐ１）に自動的に戻り、下端部２５ｅをフランジ１３の緊結孔１４に挿入係止することにより、連結金具１５がフランジ１３から脱落することを阻止する。 In this way, by simply moving the connecting fitting 15 towards the flange 13 and inserting the flange 13 into the receiving section 20, the wedge member 16 automatically retreats from the standby position (P1) towards the retracted position (P0), allowing the flange 13 to enter smoothly, and by simply moving the connecting fitting 15 to a specified position, the wedge member 16 automatically returns from the retracted position (P0) to the standby position (P1) again, and the lower end 25e is inserted and locked into the fastening hole 14 of the flange 13, preventing the connecting fitting 15 from falling off the flange 13.

このため、長尺とされた連結部材１２の両端部に設けられた楔付きの連結金具１５、１５を所定間隔で立設された支柱１１のフランジ１３に接続する作業が簡単容易となり、しかも、高所作業中に連結金具１５がフランジ１３から脱落することを防止し、更には、連結部材１２と共に地上に落下する危険を回避することができる。 This makes it easy to connect the wedge-equipped connecting fittings 15, 15 at both ends of the long connecting member 12 to the flanges 13 of the support posts 11 that are erected at a specified interval, and also prevents the connecting fittings 15 from falling off the flanges 13 during work at height, and furthermore, avoids the risk of them falling to the ground together with the connecting member 12.

（緊結工程）
上記のようにして連結金具１５をフランジ１３に載置し、楔部材１６の下端部２５ｅを緊結孔１４に挿入係止した状態から、待機位置（Ｐ１）で静止している楔部材１６の頭部２４をハンマーの殴打等により強く押下すると、図１３及び図１４に示すように、楔部材１６は、緊結位置（Ｐ２）に下動し、緊結状態を形成する。 (Binding process)
When the connecting fitting 15 is placed on the flange 13 as described above and the lower end 25e of the wedge member 16 is inserted and engaged in the fastening hole 14, the head 24 of the wedge member 16, which is stationary in the waiting position (P1), is pressed down firmly by hitting it with a hammer, etc., and the wedge member 16 moves downward to the fastening position (P2) as shown in Figures 13 and 14, and a fastening state is formed.

この際、枝部１６Ｂは、ストッパ部３７が弾性保持部３４を弾性変形させることにより押し広げながら通過して下動し、弾性保持部３４により上部領域４１を弾接保持される。 At this time, the stopper portion 37 elastically deforms the elastic retaining portion 34, pushing the branch portion 16B apart as it passes through and moves downward, and the upper region 41 is elastically retained by the elastic retaining portion 34.

（解体工程）
構築された仮設足場の解体に際して、連結金具１５をフランジ１３から離脱させる場合には、図１５及び図１６に示すように、下側の案内孔２９から下方に突出した枝部１６Ｂの下端部をハンマーの殴打等により強く押上すると、下端部の抜止め手段４３が下側の案内孔２９の縁部に当接するまで上動し、楔部材１６を解体位置（Ｐ３）に移動する。これにより、楔本体部１６Ａの下端部２５ｅがフランジ１３の緊結孔１４から抜き出され、載置面３０よりも上方に位置するので、連結金具１５をフランジ１３から引き離すことができる。 (Dismantling process)
When dismantling the constructed temporary scaffolding, to detach the connecting fitting 15 from the flange 13, as shown in Figures 15 and 16, when the lower end of the branch 16B protruding downward from the lower guide hole 29 is pushed up strongly by hitting it with a hammer or the like, the anti-pullout means 43 at the lower end moves up until it abuts on the edge of the lower guide hole 29, moving the wedge member 16 to the dismantling position (P3). As a result, the lower end 25e of the wedge main body 16A is pulled out of the fastening hole 14 of the flange 13 and positioned above the mounting surface 30, so that the connecting fitting 15 can be pulled away from the flange 13.

この際、枝部１６Ｂは、保持受部３９が弾性保持部３４を弾性変形させることにより押し広げながら通過して上動し、弾性保持部３４により下部領域４２を弾接保持される。従って、連結金具１５をフランジ１３から引き離すときに、楔部材１６が自重で下降することにより下端部２５ｅを緊結孔１４に係止して引き離し作業を妨げるようなことはなく、解体作業を容易とする。 At this time, the branch 16B moves upward as it passes through the retaining portion 39, which elastically deforms the elastic retaining portion 34 and pushes it apart, and the lower region 42 is elastically held by the elastic retaining portion 34. Therefore, when the connecting fitting 15 is pulled away from the flange 13, the wedge member 16 descends under its own weight, causing the lower end 25e to engage with the fastening hole 14, without interfering with the pulling-away operation, making dismantling easier.

尚、楔部材１６が解体位置（Ｐ３）に保持されたままの状態で、その後、再び足場構築のために連結金具１５をフランジ１３に接続するときは、上述のように、作業者が手指等により楔部材１６を下向きに押して移動するだけで、簡単容易に待機位置（Ｐ１）に停止させ、接続作業を開始することができる。 When the wedge member 16 is still held in the dismantling position (P3) and the connecting fitting 15 is to be connected to the flange 13 again to construct the scaffolding, the worker can simply push the wedge member 16 downward with his/her fingers or the like, as described above, to stop it in the waiting position (P1) and begin the connection work.

＜第２実施形態＞
図１７ないし図３１は、第２実施形態を示している。 Second Embodiment
17 to 31 show a second embodiment.

第２実施形態の技術的構成のうち、上述の「基本的構成」は、第２実施形態においても概ね同様であるから、同様の構成部分に同一符号で図示し、上述の説明を援用することにより、重複する説明を省略する。 Of the technical configurations of the second embodiment, the above-mentioned "basic configuration" is generally similar to that of the second embodiment, so the same components are indicated by the same reference numerals and the above explanations are used to omit redundant explanations.

図１７（Ａ）（Ｂ）に示すように、楔部材１６は、頭部２４及び脚部２５を備えた楔本体部１６Ａと枝部１６Ｂを横向きの連結部１６Ｃを介して一体化されており、この点は、第１実施形態と同様であるが、楔本体部１６Ａの脚部２５の下端部２５ｅに関する構成と、枝部１６Ｂの側面に関する構成において、第１実施形態と相違している。 As shown in Figures 17(A) and (B), the wedge member 16 is formed by integrating a wedge body 16A having a head 24 and legs 25 with a branch 16B via a horizontal connecting portion 16C, which is similar to the first embodiment, but differs from the first embodiment in the configuration of the lower end 25e of the leg 25 of the wedge body 16A and the configuration of the side of the branch 16B.

楔本体部１６Ａの下端部２５ｅは、図１７（Ｂ）に示すように、下端中心に向かうほぼ円錐状となる円錐面により形成されたガイド部３８を設けている。これにより、ガイド部３８は、下端部２５ｅの全周に設けられている。尚、ガイド部３８は、円錐面に代えて、ほぼ球状となる球面により形成しても良い。 As shown in FIG. 17(B), the lower end 25e of the wedge body 16A is provided with a guide portion 38 formed by a conical surface that is approximately conical toward the center of the lower end. As a result, the guide portion 38 is provided around the entire circumference of the lower end 25e. Note that the guide portion 38 may be formed by a spherical surface that is approximately spherical instead of a conical surface.

また、楔部材１６の枝部１６Ｂは、幅方向の肉厚を（ｗ１）で示すように所定厚さに形成することにより、枝部１６Ｂの側面に上下方向に延びる遊動領域４０を形成し、該遊動領域４０の両側に位置して案内リブ４６、４６を形成している。遊動領域４０の所定位置には案内リブ４６、４６を連結する横向きのリブにより形成されたストッパ部３７が設けられている。従って、ストッパ部３７を含む幅方向の肉厚（ｗ２）は、肉厚（ｗ１）とされた遊動領域４０に対して、ｗ２＞ｗ１とされ、ストッパ部３７により凸部が形成されている。これにより、遊動領域４０は、ストッパ部３７の上下に延びる上部領域４１と下部領域４２に分割された構成とされている。 The branch 16B of the wedge member 16 is formed with a predetermined widthwise thickness (w1), forming a free movement area 40 extending vertically on the side of the branch 16B, and guide ribs 46, 46 are located on both sides of the free movement area 40. A stopper portion 37 formed by a horizontal rib connecting the guide ribs 46, 46 is provided at a predetermined position of the free movement area 40. Therefore, the widthwise thickness (w2) including the stopper portion 37 is w2>w1 for the free movement area 40, which has a thickness (w1), and a convex portion is formed by the stopper portion 37. As a result, the free movement area 40 is divided into an upper region 41 and a lower region 42 that extend above and below the stopper portion 37.

保持手段３２は、図１７（Ａ）（Ｃ）に示すように、板バネの折曲により、角筒部３３と、一対の舌片状の弾性保持部３４、３４と、取付部５を形成しており、連結金具の空所部２６に装入される点において、第１実施形態と同様であるが、角筒部３３の正面壁を内側に屈曲させることにより規制部３３ａを形成しており、この点で第１実施形態と相違している。規制部３３ａは、楔部材１６の枝部１６Ｂが角筒部３３に挿通されたとき、該枝部１６Ｂの腹部１６ｂに当接又は近接することにより、枝部１６Ｂが上下動するときのガタツキや位置ずれを防止する。 As shown in Figures 17(A) and (C), the retaining means 32 is formed by bending a leaf spring to form an angular tube portion 33, a pair of tongue-shaped elastic retaining portions 34, 34, and an attachment portion 5, and is similar to the first embodiment in that it is inserted into the cavity portion 26 of the connecting fitting, but differs from the first embodiment in that a restricting portion 33a is formed by bending the front wall of the angular tube portion 33 inward. When the branch portion 16B of the wedge member 16 is inserted into the angular tube portion 33, the restricting portion 33a abuts against or comes close to the abdomen 16b of the branch portion 16B, thereby preventing rattling or misalignment when the branch portion 16B moves up and down.

弾性保持部３４、３４は、内向き円弧状に形成されており、相互の円弧頂点の間隔幅寸法（ｗ３）をｗ１≦ｗ３＜ｗ２とするように構成されている。また、弾性保持部３４の幅（ｗ４）は、前記案内リブ４６、４６の間隔よりも小さくするように形成されている。 The elastic retaining portions 34, 34 are formed in an inwardly arc-like shape, and are configured so that the spacing width dimension (w3) between the apexes of the arcs satisfies w1≦w3<w2. In addition, the width (w4) of the elastic retaining portion 34 is formed to be smaller than the spacing between the guide ribs 46, 46.

（楔部材の構成）
図１８ないし図２０に示すように、楔部材１６は、連結金具１５の上下顎部１８、１９に対して、楔本体部１６Ａの脚部２５を上下の挿通孔２１、２２に挿通自在とされると共に、枝部１６Ｂを上下の案内孔２８、２９と保持手段３２の角筒部３３に挿通され、該枝部１６Ｂの下端部に挿着されたリベットの頭部等により抜止め手段４３を設けている。この状態において、楔部材１６は、連結部１６Ｃが上側の挿通孔２１と案内孔２８の間に進入する位置（図２７参照）まで、下降することが可能であり、作業者が指先等で摘まむことにより引き上げたとは、抜止め手段４３が下側の案内孔２９の縁部に接する位置（図２９参照）まで、上昇することが可能である。 (Configuration of the wedge member)
18 to 20, the wedge member 16 has legs 25 of the wedge body 16A which can be freely inserted into the upper and lower insertion holes 21 and 22 with respect to the upper and lower jaws 18 and 19 of the connecting fitting 15, and the branch 16B is inserted into the upper and lower guide holes 28 and 29 and the square tube portion 33 of the holding means 32, and a stopper means 43 is provided by the head of a rivet or the like inserted into the lower end of the branch 16B. In this state, the wedge member 16 can be lowered to a position where the connecting portion 16C enters between the upper insertion hole 21 and the guide hole 28 (see FIG. 27), and when the operator pulls it up by pinching it with his fingertips or the like, it can be raised to a position where the stopper means 43 comes into contact with the edge of the lower guide hole 29 (see FIG. 29).

上下方向の移動位置に関して、楔部材１６は、脚部２５の下端部２５ｅが上顎部１８の載置面３０と面一とされる位置を退避位置（Ｐ０）（図２３参照）とし、該下端部２５ｅが載置面３０から下向きに距離（ｔ）だけ突出させられる位置を待機位置（Ｐ１）（図１８及び図２０参照）とし、待機位置から下動してフランジ１３の緊結孔１４に打ち込み緊結された位置を緊結位置（Ｐ２）（図２７参照）とし、前記抜止め手段４３が下側の案内孔２９の縁部に当接した状態とされ下端部２５ｅが載置面３０よりも上方に移動した位置を解体位置（Ｐ３）（図２９参照）としている。 Regarding the vertical movement positions, the wedge member 16 has a retracted position (P0) (see FIG. 23) where the lower end 25e of the leg 25 is flush with the support surface 30 of the upper jaw 18, a standby position (P1) (see FIG. 18 and FIG. 20) where the lower end 25e protrudes downward from the support surface 30 by a distance (t), a fastening position (P2) (see FIG. 27) where it moves downward from the standby position and is fastened by being driven into the fastening hole 14 of the flange 13, and a dismantling position (P3) (see FIG. 29) where the anti-pullout means 43 abuts against the edge of the lower guide hole 29 and the lower end 25e moves above the support surface 30.

図１８ないし図２０に示すように、待機位置（Ｐ１）とされたとき、フランジ１３の厚さ（Ｔ）と受入部２０の上下幅（Ｈ）は、Ｈ＞ｔとなるように構成され、これに対して、下端部２５ｅが下向きに突出する距離（ｔ）は、Ｔ＞ｔとなるように構成されている。図示実施形態の場合、楔本体部１６Ａの下端部２５ｅと下顎部１９の間の空間の高さ（ｈ）は、フランジ１３の厚さ（Ｔ）とほぼ等しく、Ｔ≦ｈとするように構成されているが、ｈ＜Ｔ＜ｈ＋ｔとするように構成しても良い。 As shown in Figures 18 to 20, when in the standby position (P1), the thickness (T) of the flange 13 and the vertical width (H) of the receiving portion 20 are configured to be H>t, and the distance (t) that the lower end 25e protrudes downward is configured to be T>t. In the illustrated embodiment, the height (h) of the space between the lower end 25e of the wedge body 16A and the lower jaw 19 is configured to be approximately equal to the thickness (T) of the flange 13, such that T≦h, but it may also be configured to be h<T<h+t.

円錐面又は球面により形成された下端部２５ｅのガイド部３８は、突出距離（ｔ）に含まれる下端部２５ｅの全領域にわたり設けても良いが、図示実施形態の場合、図２０（Ｂ）に示すように、下端部(25e) の突出距離（ｔ）を構成する下側距離（ｇ）と上側距離（ｅ）をｅ＜ｇとするように構成することにより、下端部２５ｅのうち、下側距離（ｇ）に含まれる領域に前記ガイド部３８を形成し、上側距離（ｅ）に含まれる領域に係止部４７を形成している。 The guide portion 38 of the lower end 25e, which is formed by a conical or spherical surface, may be provided over the entire area of the lower end 25e included in the protruding distance (t), but in the illustrated embodiment, as shown in FIG. 20(B), the lower distance (g) and upper distance (e) that constitute the protruding distance (t) of the lower end (25e) are configured so that e<g, so that the guide portion 38 is formed in the area of the lower end 25e that is included in the lower distance (g), and the locking portion 47 is formed in the area of the upper distance (e).

後述するように、連結金具１５とフランジ１３の横向きの相対移動に関して、ガイド部３８は、フランジ１３の縁部に当接して乗り上げ方向に案内するガイドを構成している。これに対して、係止部４７は、フランジ１３の縁部に当接したとき、該縁部を受止め、乗り上げられることなく係止するように構成されている。 As described below, with regard to the relative lateral movement between the connecting fitting 15 and the flange 13, the guide portion 38 constitutes a guide that abuts against the edge of the flange 13 and guides it in the direction of climbing up. In contrast, the locking portion 47 is configured to receive the edge of the flange 13 when it abuts against it, and lock it in place without being climbed up.

（枝部と保持手段の構成）
図１８及び図１９に示すように、楔部材１６が待機位置（Ｐ１）に位置しているとき、枝部１６Ｂは、自重で下降するが、ストッパ部３７が弾性保持部３４に載置され当接した状態で該弾性保持部３４により受止められ、楔部材１６を停止させている。この際、弾性保持部３４は、弾性変形可能なものであるが、載置されたストッパ部３７により楔部材１６の自重による落下力を受ける程度の力では変形しないように構成されている。この状態において、弾性保持部３４は、ストッパ部３７の直下で遊動領域４０の下部領域４２を上動自在に摘持している。つまり、下部領域４２の表面に接触せずに隙間を介して臨まされている、又は、隙間なく接触している場合であっても、下部領域４２の表面を弾性保持していない。 (Configuration of Branch and Holding Means)
As shown in Figures 18 and 19, when the wedge member 16 is located at the standby position (P1), the branch 16B descends under its own weight, but is received by the elastic holding portion 34 with the stopper portion 37 placed on and in contact with the elastic holding portion 34, stopping the wedge member 16. At this time, the elastic holding portion 34 is elastically deformable, but is configured so that it is not deformed by the force of the wedge member 16's own weight due to the stopper portion 37 placed on it. In this state, the elastic holding portion 34 pinches the lower region 42 of the free movement region 40 directly below the stopper portion 37 so as to be freely movable upward. In other words, it does not elastically hold the surface of the lower region 42 even if it faces the surface of the lower region 42 without contacting it and faces it through a gap, or even if it contacts it without a gap.

従って、待機位置（Ｐ１）において、楔部材１６は、作業者が指先で摘まむ等により、落下力に勝る引き上げ力を与えると、枝部１６Ｂにおける遊動領域４０の下部領域４２が弾性保持部３４の抵抗を受けることなく、簡単に上動させられる。図２３及び図２４は、楔部材１６が退避位置（Ｐ０）に上動させられた状態を示している。 Therefore, when the wedge member 16 is in the standby position (P1), if an operator applies a pulling force greater than the dropping force, for example by pinching it with his or her fingertips, the lower region 42 of the free area 40 in the branch portion 16B can be easily moved upward without resistance from the elastic retaining portion 34. Figures 23 and 24 show the wedge member 16 in the state where it has been moved upward to the retracted position (P0).

ところで、退避位置（Ｐ０）に位置する状態から、前記引き上げ力を解放すると、楔部材１６は、自重による落下力により下降し、ストッパ部３７が弾性保持部３４に載置され当接することにより、再び待機位置（Ｐ１）で停止し、静止させられる。図２５及び図２６は、楔部材１６が再び待機位置（Ｐ１）で停止した状態を示している。 When the lifting force is released from the retracted position (P0), the wedge member 16 descends due to the falling force caused by its own weight, and the stopper portion 37 rests on and abuts the elastic retaining portion 34, causing the wedge member 16 to stop again at the standby position (P1) and become stationary. Figures 25 and 26 show the wedge member 16 stopped again at the standby position (P1).

待機位置（Ｐ１）で静止している楔部材１６の頭部２４をハンマーの殴打等により強く押下すると、ストッパ部３７が弾性保持部３４を押し広げることにより通過し、楔部材１６を緊結位置（Ｐ２）に向けて下動する。これにより、弾性保持部３４には遊動領域４０の上部領域４１が臨まされる。この状態において、弾性保持部３４は、上部領域４１を下動自在に摘持している。つまり、上部領域４１の表面に接触せずに隙間を介して臨まされている、又は、隙間なく接触している場合であっても、上部領域４１の表面を弾性保持していない。図２７及び図２８は、楔部材１６が緊結位置（Ｐ２）に下動させられた状態を示している。 When the head 24 of the wedge member 16, which is stationary in the standby position (P1), is pressed down by a hammer blow or the like, the stopper portion 37 pushes the elastic retaining portion 34 apart and passes through, moving the wedge member 16 downward toward the fastening position (P2). As a result, the upper region 41 of the free region 40 faces the elastic retaining portion 34. In this state, the elastic retaining portion 34 pinches the upper region 41 so that it can move downward. In other words, it faces the surface of the upper region 41 through a gap without contacting it, or even if it is in contact with the surface of the upper region 41 without a gap, it does not elastically hold the surface of the upper region 41. Figures 27 and 28 show the state in which the wedge member 16 has been moved downward to the fastening position (P2).

緊結位置（Ｐ２）で緊結状態とされた楔部材１６における枝部１６Ｂの下端部をハンマーの殴打等により強く押上すると、ストッパ部３７が弾性保持部３４を押し広げることにより通過し、楔部材１６を解体位置（Ｐ３）に向けて移動させる。このとき、弾性保持部３４には遊動領域４０の下部領域４２が臨まされる。図２９及び図３０は、楔部材１６が解体位置（Ｐ３）に上動させられた状態を示している。 When the lower end of the branch portion 16B of the wedge member 16, which is fastened in the fastening position (P2), is pushed up strongly by hitting it with a hammer, the stopper portion 37 pushes the elastic retaining portion 34 apart and passes through, moving the wedge member 16 towards the dismantling position (P3). At this time, the lower region 42 of the free movement region 40 faces the elastic retaining portion 34. Figures 29 and 30 show the state in which the wedge member 16 has been moved up to the dismantling position (P3).

図示実施形態の場合、解体位置（Ｐ３）における下部領域４２の表面に対して、弾性保持部３４は、接触せずに隙間を介して臨まされている、又は、隙間なく接触している場合であっても、表面を弾性保持しないように構成されている。しかしながら、下部領域４２は、弾性保持部３４により弾性保持され、楔部材１６が解体位置（Ｐ３）から自重で下降しないように構成しても良い。つまり、遊動領域４０は、上部領域４１だけで構成し、下部領域４２における枝部１６Ｂの幅方向の肉厚を弾性保持部３４、３４の間隔幅寸法（ｗ３）よりも大きく形成しても良い。 In the illustrated embodiment, the elastic retaining portion 34 faces the surface of the lower region 42 at the disassembly position (P3) without contacting it through a gap, or even if it is in contact with the surface without a gap, it is configured not to elastically retain the surface. However, the lower region 42 may be configured so that it is elastically retained by the elastic retaining portion 34 and the wedge member 16 does not descend from the disassembly position (P3) under its own weight. In other words, the free movement region 40 may be formed only by the upper region 41, and the widthwise thickness of the branch portion 16B in the lower region 42 may be formed to be larger than the spacing width dimension (w3) of the elastic retaining portions 34, 34.

（作用）
以下、上記のように構成された第２実施形態に係る緊結装置の作用を説明する。 (Action)
Hereinafter, the operation of the fastening device according to the second embodiment configured as above will be described.

（事前工程）
連結金具１５をフランジ１３に接続するに先立ち、楔部材１６は、図１８及び図１９に示すように、待機位置（Ｐ１）に位置させられている。この状態で、楔部材１６は、自重によりストッパ部３７が弾性保持部３４に載置された状態で当接することにより静止しており、楔本体部１６Ａにおける脚部２５の下端部２５ｅを載置面３０から下向きに距離（ｔ）だけ突出させている。 (Preliminary process)
Prior to connecting the connecting fitting 15 to the flange 13, the wedge member 16 is positioned in a standby position (P1) as shown in Figures 18 and 19. In this state, the wedge member 16 is stationary due to its own weight, with the stopper portion 37 abutting against the elastic retaining portion 34 while placed on it, and the lower end portion 25e of the leg portion 25 of the wedge main body portion 16A protrudes downward from the placement surface 30 by a distance (t).

（載置工程）
緊結作業を行うため、連結金具１５をフランジ１３の側方に臨ませた状態からフランジ１３に向けて横方向に移動させ、受入部２０にフランジ１３を進入させると共に、上顎部１８の載置面３０をフランジ１３に載置する工程を図２０ないし図２６に示している。 (Placement process)
To perform the fastening operation, the connecting fitting 15 is moved laterally from a position facing the side of the flange 13 toward the flange 13, the flange 13 is inserted into the receiving portion 20, and the supporting surface 30 of the upper jaw portion 18 is placed on the flange 13, as shown in Figures 20 to 26.

上下顎部１８、１９の間における受入部２０の開口をフランジ１３に向けて前進させるときの状態を図２０に示している。 Figure 20 shows the state when the opening of the receiving portion 20 between the upper and lower jaw portions 18 and 19 is advanced toward the flange 13.

フランジ１３に対して下顎部１９が所定位置よりもやや上方位置に保持され、フランジ１３の縁部に当接するように前進させられたときは、図２０（Ａ）に示すように、下顎部１９の先端傾斜部１９ｂがフランジ１３の縁部に当接して摺動することにより、ラインＬ１で示すように下顎部１９の上面がフランジ１３の下面に一致する方向に下顎部１９の姿勢を制御する。そこで、鎖線で示すように、フランジ１３の下面よりも下顎部１９の上面がやや下方に位置するように姿勢を制御した状態で前進させると、下端部２５ｅのガイド部３８がフランジ１３の縁部に当接させられる。 When the lower jaw 19 is held at a position slightly above a predetermined position relative to the flange 13 and advanced so as to abut against the edge of the flange 13, as shown in FIG. 20(A), the tip inclined portion 19b of the lower jaw 19 abuts against the edge of the flange 13 and slides, controlling the posture of the lower jaw 19 in a direction such that the upper surface of the lower jaw 19 coincides with the lower surface of the flange 13, as shown by line L1. Therefore, when the lower jaw 19 is advanced while its posture is controlled so that the upper surface of the lower jaw 19 is positioned slightly lower than the lower surface of the flange 13, as shown by the dashed line, the guide portion 38 of the lower end 25e abuts against the edge of the flange 13.

反対に、フランジ１３に対して下顎部１９が所定位置よりもやや下方位置に保持されて前進させられたときは、図２０（Ｂ）に示すように、楔部材１６の下端部２５ｅがフランジ１３の縁部に当接する。図示のように、係止部４７がフランジ１３の縁部に当接したときは、受入部２０に対するフランジ１３の進入が阻止されるので、これを作業者が触感で感知して連結金具１５を少しだけ持ち上げてやると、下端部２５ｅのガイド部３８がフランジ１３の縁部に当接させられる。 Conversely, when the lower jaw 19 is held slightly below the specified position relative to the flange 13 and advanced, the lower end 25e of the wedge member 16 abuts against the edge of the flange 13, as shown in Figure 20 (B). As shown, when the locking portion 47 abuts against the edge of the flange 13, the flange 13 is prevented from entering the receiving portion 20, and when the worker senses this by touch and slightly lifts the connecting fitting 15, the guide portion 38 of the lower end 25e abuts against the edge of the flange 13.

そこで、図２１及び図２２に示すように、楔部材１６は、受入部２０に進入しようとするフランジ１３の縁部に対して、その進入を妨げる位置に下端部２５ｅのガイド部３８を位置させているが、ガイド部３８は、フランジ１３の縁部に当接した状態で前進することにより、縁部を乗り上げる方向に案内される。 As shown in Figures 21 and 22, the wedge member 16 positions the guide portion 38 of the lower end portion 25e in a position that prevents the edge of the flange 13 from entering the receiving portion 20, but the guide portion 38 moves forward while abutting against the edge of the flange 13, and is guided in the direction of climbing over the edge.

このため、図２３及び図２４に示すように、フランジ１３の縁部の当接を受けることにより、ガイド部３８を縁部に乗り上げさせながら、楔部材１６は、待機位置（Ｐ１）から退避位置（Ｐ０）に向けて移動し、載置面３０をフランジ１３の上面に載置した状態で所定位置まで滑動させることができる。ガイド部３８の乗り上げによる楔部材１６の上動は、上述のように、遊動領域４０を構成する下部領域４２が弾性保持部３４の抵抗を受けることなく円滑に上動することにより行われる。 23 and 24, by coming into contact with the edge of the flange 13, the wedge member 16 moves from the standby position (P1) toward the retracted position (P0) while causing the guide portion 38 to ride up on the edge, and can slide to a predetermined position with the mounting surface 30 placed on the upper surface of the flange 13. The upward movement of the wedge member 16 due to the guide portion 38 riding up is achieved by the lower region 42 constituting the free movement region 40 moving up smoothly without resistance from the elastic retaining portion 34, as described above.

そこで、退避位置（Ｐ０）に位置する楔部材１６は、下端部２５ｅがフランジ１３の緊結孔１４に臨まされると、自重により下降し、図２５及び図２６に示すように、ストッパ部３７が弾性保持部３４に当接した位置、つまり、再び待機位置（Ｐ１）で停止し、静止させられる。 Then, when the lower end 25e of the wedge member 16, which is positioned in the retracted position (P0), faces the fastening hole 14 of the flange 13, it descends under its own weight and stops and comes to rest again at the standby position (P1) where the stopper portion 37 abuts against the elastic retaining portion 34, as shown in Figures 25 and 26.

このように、連結金具１５をフランジ１３に向けて移動させ、受入部２０にフランジ１３を進入させるだけで、楔部材１６が待機位置（Ｐ１）から退避位置（Ｐ０）に向けて自動的に退避することによりフランジ１３の進入を好適に行わせることができる。しかも、上顎部１８の載置面３０がフランジ１３の上面を滑動することにより、連結金具１５を所定位置に移動するだけで、楔部材１６が退避位置（Ｐ０）から再び待機位置（Ｐ１）に自動的に戻り、下端部２５ｅがフランジ１３の緊結孔１４に挿入される。 In this way, simply by moving the connecting fitting 15 towards the flange 13 and inserting the flange 13 into the receiving portion 20, the wedge member 16 automatically retracts from the standby position (P1) towards the retracted position (P0), allowing the flange 13 to be inserted smoothly. Moreover, as the mounting surface 30 of the upper jaw portion 18 slides on the upper surface of the flange 13, simply by moving the connecting fitting 15 to a specified position, the wedge member 16 automatically returns from the retracted position (P0) to the standby position (P1) again, and the lower end portion 25e is inserted into the fastening hole 14 of the flange 13.

この際、上述のように、下端部２５ｅに係止部４７を設けておけば、該係止部４７が緊結孔１４の上縁に係止され、載置面３０がフランジ１３の上面から退避方向に滑動することを阻止するので、高所作業中に連結金具１５がフランジ１３から脱落することを防止することができる。 In this case, if a locking portion 47 is provided at the lower end 25e as described above, the locking portion 47 will lock onto the upper edge of the fastening hole 14, preventing the mounting surface 30 from sliding away from the upper surface of the flange 13, thereby preventing the connecting fitting 15 from falling off the flange 13 while working at height.

（緊結工程）
待機位置（Ｐ１）で静止している楔部材１６は、頭部２４をハンマーの殴打等により強く押下すると、図２７及び図２８に示すように、緊結位置（Ｐ２）まで下動され、緊結状態を形成する。 (Binding process)
When the head 24 of the wedge member 16, which is stationary in the standby position (P1), is strongly pressed down by hitting it with a hammer or the like, it is moved down to the fastening position (P2) as shown in Figures 27 and 28, and a fastening state is formed.

この際、枝部１６Ｂは、ストッパ部３７が弾性保持部３４を弾性変形させることにより押し広げながら通過して下動し、弾性保持部３４は、遊動領域４０の上部領域４１に臨まされる。 At this time, the branch portion 16B passes through and moves downward as the stopper portion 37 elastically deforms the elastic retaining portion 34, pushing it apart, so that the elastic retaining portion 34 faces the upper region 41 of the free movement region 40.

（解体工程）
構築された仮設足場の解体に際して、連結金具１５をフランジ１３から離脱させる場合には、図２９及び図３０に示すように、下側の案内孔２９から下方に突出した枝部１６Ｂの下端部をハンマーの殴打等により強く押上すると、下端部の抜止め手段４３が下側の案内孔２９の縁部に当接するまで上動し、楔部材１６を解体位置（Ｐ３）に移動する。これにより、楔本体部１６Ａの下端部２５ｅがフランジ１３の緊結孔１４から抜き出され、連結金具１５をフランジ１３から引き離すことが可能となる。 (Dismantling process)
When dismantling the constructed temporary scaffolding, in order to detach the connecting fitting 15 from the flange 13, as shown in Figures 29 and 30, when the lower end of the branch portion 16B protruding downward from the lower guide hole 29 is pushed up strongly by hitting it with a hammer or the like, the anti-pullout means 43 at the lower end moves up until it abuts against the edge of the lower guide hole 29, moving the wedge member 16 to the dismantling position (P3). This causes the lower end 25e of the wedge main body portion 16A to be pulled out of the fastening hole 14 of the flange 13, making it possible to pull the connecting fitting 15 away from the flange 13.

ところで、図示実施形態の場合、楔部材１６が緊結位置（Ｐ２）から解体位置（Ｐ３）に上動したとき、ストッパ部３７が弾性保持部３４を弾性変形させることにより押し広げながら通過して上動し、弾性保持部３４が遊動領域４０の下部領域４２に臨まされる。従って、楔部材１６は、解体位置（Ｐ３）から自重により、ストッパ部３７が弾性保持部３４に載置される位置、つまり、待機位置（Ｐ１）まで下動して停止させられ、楔部材１６の下端部２５ｅが再びフランジ１３の緊結孔１４に挿入される。 In the illustrated embodiment, when the wedge member 16 moves upward from the fastening position (P2) to the disassembly position (P3), the stopper portion 37 elastically deforms the elastic retaining portion 34, pushing it apart as it passes through and moves upward, so that the elastic retaining portion 34 faces the lower region 42 of the free movement region 40. Therefore, the wedge member 16 moves downward from the disassembly position (P3) by its own weight to a position where the stopper portion 37 is placed on the elastic retaining portion 34, that is, the standby position (P1), where it is stopped, and the lower end portion 25e of the wedge member 16 is inserted again into the fastening hole 14 of the flange 13.

このため、解体作業時においても、連結金具１５は、下端部２５ｅの係止部４７を緊結孔１４の上縁に係止するので、載置面３０がフランジ１３の上面に沿って滑動することは阻止されている。 As a result, even during dismantling work, the connecting fitting 15 has the locking portion 47 of the lower end 25e locked to the upper edge of the fastening hole 14, preventing the mounting surface 30 from sliding along the upper surface of the flange 13.

そこで、連結金具１５をフランジ１３から引き離すときは、下顎部１８がフランジ１３の下面に当接するまで連結金具１５を持ち上げれば、前記下端部２５ｅが緊結孔１４から上方に脱するので、その状態から連結金具１５を横向きに移動させれば良い。 Therefore, when pulling the connecting fitting 15 away from the flange 13, if the connecting fitting 15 is lifted up until the lower jaw portion 18 abuts against the underside of the flange 13, the lower end portion 25e will come out upward from the fastening hole 14, and then the connecting fitting 15 can be moved sideways from that state.

この際、下端部２５ｅの全体を緊結孔１４の上方に脱出させなくても、少なくとも係止部４７を脱出させれば良い。ガイド部３８は、緊結孔１４に挿入されたままでも、上述のように、連結金具１５とフランジ１３の間における相対的な横向き移動により、緊結孔１４の縁部に当接して乗り上げ移動するので、これにより、受入部２０がフランジ１３から引き離されることを可能にする。 At this time, it is not necessary to release the entire lower end 25e above the fastening hole 14; at least the locking portion 47 needs to be released. Even if the guide portion 38 remains inserted in the fastening hole 14, as described above, the relative lateral movement between the connecting fitting 15 and the flange 13 causes the guide portion 38 to abut against and move up the edge of the fastening hole 14, thereby allowing the receiving portion 20 to be pulled away from the flange 13.

このように、第２実施形態によれば、足場構築時における連結金具１５をフランジ１３に接続するときだけでなく、足場解体時における連結金具１５をフランジ１３から引き離すときにも、長尺とされた連結部材１２の両端部に設けられた楔付きの連結金具１５、１５の取り扱い作業が簡単容易となり、作業中に連結金具１５がフランジ１３から脱落する危険を回避することができる。 Thus, according to the second embodiment, the wedge-equipped connecting fittings 15, 15 at both ends of the long connecting member 12 can be easily handled not only when connecting the connecting fittings 15 to the flange 13 during construction of the scaffolding, but also when pulling the connecting fittings 15 away from the flange 13 during dismantling of the scaffolding, thereby avoiding the risk of the connecting fittings 15 falling off the flange 13 during work.

＜第３実施形態＞
図３１及び図３２は、第３実施形態を示している。 Third Embodiment
31 and 32 show a third embodiment.

上述の第１実施形態及び第２実施形態は、楔本体部１６Ａの下端部２５ｅにガイド部３８を設けているが、必ずしもガイド部３８を設けなくても、所期目的を達成することが可能であるので、このような観点から第３実施形態を提供することができる。尚、第３実施形態は、上述した第１実施形態の構成と概ね同一構成とされており、従って、共通する技術的構成は、上述の説明を援用することにより重複説明を省略し、相違する技術的構成について説明する。 In the first and second embodiments described above, a guide portion 38 is provided at the lower end 25e of the wedge body portion 16A, but since it is possible to achieve the intended purpose without necessarily providing a guide portion 38, the third embodiment can be provided from this perspective. Note that the third embodiment has a configuration that is generally the same as that of the first embodiment described above, and therefore, by invoking the above explanation, duplicate explanations of the common technical configurations will be omitted, and only the different technical configurations will be explained.

第３実施形態は、楔部材１６の枝部１６Ｂと保持手段３２の弾性保持部３４の間に、遊動領域４０と下向き凸状のストッパ３７により楔部材１６の自重を支持することにより待機位置（Ｐ１）で静止させるための静止手段４４を構成しており、この点では第１実施形態と同様であるが、楔本体部１６Ａの下端部２５ｅには、第１実施形態のようなガイド部３８を設けても良く又は設けなくても良い。 The third embodiment is similar to the first embodiment in that it provides a stationary means 44 between the branch 16B of the wedge member 16 and the elastic holding portion 34 of the holding means 32 to support the weight of the wedge member 16 with a free movement area 40 and a downwardly convex stopper 37, thereby holding the wedge member 16 stationary at the standby position (P1). However, the lower end 25e of the wedge body 16A may or may not be provided with a guide portion 38 as in the first embodiment.

ところで、第３実施形態の場合、図３１に示すように、楔部材１６を待機位置（Ｐ１）で静止させた状態において、下向きに距離（ｔ）だけ突出させられた楔本体部１６Ａの下端部２５ｅと下顎部１９の間に形成された高さ（ｈ）の空間は、ｈ＝Ｈ－ｔとするように構成され、フランジ１３の厚さ（Ｔ）に対してＴ＜ｈとするように構成されている。 In the case of the third embodiment, as shown in FIG. 31, when the wedge member 16 is stationary in the standby position (P1), the space of height (h) formed between the lower end 25e of the wedge body 16A, which is protruded downward by a distance (t), and the lower jaw 19 is configured so that h = H-t, and T < h with respect to the thickness (T) of the flange 13.

これにより、連結金具１５における上顎部１８の載置面３０をフランジ１３に載置するときは、作業者が連結金具１５又は連結部材１２を持ち上げると共に、前記高さ（ｈ）とされた空間がフランジ１３に臨まされるように高さ位置を定めることにより、その状態で、図３２（Ａ）に示すように、該空間からフランジ１３を受入部２０に進入させることができる。 As a result, when placing the mounting surface 30 of the upper jaw portion 18 of the connecting fitting 15 on the flange 13, the worker lifts the connecting fitting 15 or the connecting member 12 and determines the height position so that the space of the height (h) faces the flange 13. In this state, the flange 13 can enter the receiving portion 20 from the space as shown in Figure 32 (A).

そこで、フランジ１３を受入部２０に進入させながら、前記下端部２５ｅが緊結孔１４に臨ませられた位置で、連結金具１５を下げることにより、上顎部１８の載置面３０をフランジ１３に載置すれば、図３２（Ｂ）に示すように、前記下端部２５ｅが緊結孔１４に挿入係止され、上顎部１８がフランジ１３から脱落することを阻止することができる。 Then, while inserting the flange 13 into the receiving portion 20, the connecting fitting 15 is lowered at a position where the lower end 25e faces the fastening hole 14, and the mounting surface 30 of the upper jaw portion 18 is placed on the flange 13. As shown in FIG. 32(B), the lower end 25e is inserted and locked into the fastening hole 14, preventing the upper jaw portion 18 from falling off the flange 13.

＜第４実施形態＞
図３３ないし図３５は、第４実施形態を示している。 Fourth Embodiment
33 to 35 show a fourth embodiment.

上述の第３実施形態は、第１実施形態の構成と同様に、待機位置（Ｐ１）に位置する楔部材１６は、遊動領域４０に臨む下向き凸状のストッパ部３７と、保持手段３２の弾性保持部３４により構成された静止手段４４により、自重で下降しないように静止される反面、上方には簡単に上動するように構成されているが、第４実施形態の場合、楔部材１６は、静止手段４４により、上下両方向に向けて簡単に移動しないように制御する構成とされている。 In the third embodiment described above, similar to the configuration of the first embodiment, the wedge member 16 located in the standby position (P1) is stopped by the stopper means 44 composed of the downwardly convex stopper portion 37 facing the free movement area 40 and the elastic holding portion 34 of the holding means 32 so as not to descend under its own weight, but is configured to easily move upward. However, in the case of the fourth embodiment, the wedge member 16 is configured to be controlled by the stopper means 44 so as not to easily move in either the up or down direction.

図示実施形態の場合、図３４に示すように、楔部材１６が待機位置（Ｐ１）に位置するとき、枝部１６Ｂには、保持手段３２の弾性保持部３４により摘持される静止領域４５が形成され、該静止領域４４の上下に設けた下向き凸状のストッパ部３７と上向き凸状の保持受部３９をそれぞれ弾性保持部３４に対して上下から対向させ当接させている。尚、「摘持」の意味は上述したとおりである。 In the illustrated embodiment, as shown in FIG. 34, when the wedge member 16 is located in the standby position (P1), a stationary area 45 is formed on the branch 16B that is gripped by the elastic holding portion 34 of the holding means 32, and downwardly convex stopper portions 37 and upwardly convex holding receiving portions 39 provided above and below the stationary area 44 face and abut against the elastic holding portion 34 from above and below. The meaning of "grip" is as described above.

従って、弾性保持部３４を弾性変形させるために必要十分な外力を与えたときにだけ、前記ストッパ部３７と保持受部３９が弾性保持部３４を通過することにより、楔部材１６の上下動を可能にする。 Therefore, the stopper portion 37 and the receiving portion 39 pass through the elastic retaining portion 34 only when a necessary and sufficient external force is applied to elastically deform the elastic retaining portion 34, thereby allowing the wedge member 16 to move up and down.

第３実施形態の場合と同様に、図３３に示すように、楔部材１６を待機位置（Ｐ１）で静止させた状態において、下向きに距離（ｔ）だけ突出させられた楔本体部１６Ａの下端部２５ｅと下顎部１９の間には、高さ（ｈ）とされた空間が形成され、フランジ１３の厚さ（Ｔ）に対してＴ＜ｈとするように構成されている。 As in the third embodiment, as shown in FIG. 33, when the wedge member 16 is stationary in the standby position (P1), a space having a height (h) is formed between the lower end 25e of the wedge body 16A, which is protruded downward a distance (t), and the lower jaw 19, and is configured such that T<h with respect to the thickness (T) of the flange 13.

このため、第３実施形態の場合と同様に、連結金具１５における上顎部１８の載置面３０をフランジ１３に載置するときは、作業者が連結金具１５又は連結部材１２を持ち上げると共に、前記高さ（ｈ）とされた空間がフランジ１３に臨まされるように高さ位置を定めることにより、その状態で、図３５（Ａ）に示すように、該空間からフランジ１３を受入部２０に進入させることができる。 Therefore, as in the third embodiment, when placing the mounting surface 30 of the upper jaw portion 18 of the connecting fitting 15 on the flange 13, the worker lifts the connecting fitting 15 or the connecting member 12 and determines the height position so that the space of the height (h) faces the flange 13, and in this state, the flange 13 can enter the receiving portion 20 from the space as shown in Figure 35 (A).

そこで、フランジ１３を受入部２０に進入させながら、前記下端部２５ｅが緊結孔１４に臨ませられた位置で、連結金具１５を下げることにより、上顎部１８の載置面３０をフランジ１３に載置すれば、図３５（Ｂ）に示すように、前記下端部２５ｅが緊結孔１４に挿入係止され、上顎部１８がフランジ１３から脱落することを阻止することができる。 Then, while inserting the flange 13 into the receiving portion 20, the connecting fitting 15 is lowered at a position where the lower end 25e faces the fastening hole 14, and the mounting surface 30 of the upper jaw portion 18 is placed on the flange 13. As shown in FIG. 35(B), the lower end 25e is inserted and locked into the fastening hole 14, preventing the upper jaw portion 18 from falling off the flange 13.

尚、図例では、静止手段４４として、上下のストッパ部３７と保持受部３９により静止領域４５が弾性保持部３４を容易に通過しないように制御する構成を示したが、静止領域４５の肉厚を弾性保持部３４に向けて分厚く形成することにより、弾性保持部３４により弾接保持された状態で静止するように制御する構成としても良い。 In the illustrated example, the stationary means 44 is configured to control the stationary area 45 so that it does not easily pass through the elastic retaining part 34 using the upper and lower stopper parts 37 and the retaining part 39, but the stationary area 45 may be configured to be thicker toward the elastic retaining part 34 so that it is held in elastic contact with the elastic retaining part 34 and remains stationary.

１１ 支柱
１２ 連結部材
１３ フランジ
１４ 緊結孔
１４ａ 接支縁部
１５ 連結金具
１６ 楔部材
１６Ａ 楔本体部
１６Ｂ 枝部
１６Ｃ 連結部
１６ｂ 枝部の腹部
１７ 基部
１８ 上顎部
１９ 下顎部
１８ａ、１９ａ 当接部
１９ｂ 下顎部の先端傾斜部
２０ 受入部
２１ 上側の挿通孔
２１ａ 受縁部
２２ 下側の挿通孔
２２ａ 受縁部
２３ 楔部
２３ａ 腹部
２３ｂ 背部
２４ 頭部
２５ 脚部
２５ｅ 下端部
２６ 空所部
２７ 開口部
２７ａ、２７ｂ 平坦面
２８ 上側の案内孔
２９ 下側の案内孔
３０ 載置面
３１ 受止め部
３２ 保持手段
３３ 角筒部
３３ａ 規制部
３４ 弾性保持部
３５ 取付部
３６ 翼片
３６ａ、３６ｂ 直線縁部
３７ ストッパ部
３８ ガイド部
３９ 保持受部
４０ 遊動領域
４１ 上部領域
４２ 下部領域
４３ 抜止め手段
４４ 静止手段
４５ 静止領域
４６ 案内リブ
４７ 係止部 11 Support 12 Connecting member 13 Flange 14 Fastening hole 14a Support edge portion 15 Connecting fitting 16 Wedge member 16A Wedge main body portion 16B Branch portion 16C Connecting portion 16b Abdomen portion 17 Base portion 18 Upper jaw portion 19 Lower jaw portion 18a, 19a Abutment portion 19b Inclined tip portion 20 Receiving portion 21 Upper insertion hole 21a Receiving edge portion 22 Lower insertion hole 22a Receiving edge portion 23 Wedge portion 23a Abdomen portion 23b Back portion 24 Head portion 25 Leg portion 25e Lower end portion 26 Cavity portion 27 Opening portion 27a, 27b Flat surface 28 Upper guide hole 29 Lower guide hole 30 Placement surface 31 Receiving portion 32 Holding means 33 Square tube portion 33a Restricting portion 34 Elastic holding portion 35 Mounting portion 36 Wing pieces 36a, 36b Straight edge portion 37 Stopper portion 38 Guide portion 39 Receiving portion 40 Free movement region 41 Upper region 42 Lower region 43 Pull-out prevention means 44 Stationary means 45 Stationary region 46 Guide rib 47 Locking portion

Claims (4)

支柱に固設されたフランジに連結部材を連結する緊結装置であり、前記連結部材に固設された連結金具(15)と楔部材(16)により構成され、連結金具(15)の受入部(20)にフランジを進入させた状態で、楔部材(16)をフランジの緊結孔(14)に打ち込むことにより緊結する構成において、
前記連結金具(15)は、内部に空所部(26)を形成した基部(17)から上顎部(18)と下顎部(19)を延設すると共に、該上下顎部(18)(19)の間に前記受入部(20)を形成し、前記空所部(26)に保持手段(32)を設けており、
前記楔部材(16)は、楔本体部(16A)と枝部(16B)を並設一体化しており、
前記枝部(16B)は、前記空所部(26)を上下に貫通して挿通されると共に、楔部材(16)が自重で下降しないように前記保持手段(32)により保持されるストッパ部(37)(37)を両側面に設け、
前記楔本体部(16A)は、前記上下顎部(18)(19)に挿通されると共に、前記枝部(16B)を保持する保持手段(32)の保持力に勝る力で楔部材(16)を下動したとき、前記緊結孔(14)に緊結されるように構成されており、
前記保持手段(32)は、前記枝部(16B)を挿通させる筒部(33)と、該筒部(33)から延設されて前記枝部(16B)の両側面に臨む一対の弾性保持部(34)(34)を備え、
前記弾性保持部(34)(34)は、前記枝部(16B)のストッパ部(37)(37)を受止めることにより楔部材(16)を自重で下降しないように停止させるが、楔部材(16)に下向きの力が与えられたとき、前記ストッパ部(37)(37)により押し広げられ、該ストッパ部(37)(37)を通過させることにより楔部材(16)の下動を許すように構成されて成ることを特徴とする足場における楔緊結装置。 A fastening device for fastening a connecting member to a flange fixed to a support, the fastening device being configured to include a connecting fitting (15) fixed to the connecting member and a wedge member (16), and fastening is performed by driving the wedge member (16) into a fastening hole (14) of the flange with the flange inserted into a receiving portion (20) of the connecting fitting (15),
The connecting fitting (15) has an upper jaw portion (18) and a lower jaw portion (19) extending from a base portion (17) having a cavity portion (26) formed therein, the receiving portion (20) is formed between the upper and lower jaw portions (18) and (19), and a holding means (32) is provided in the cavity portion (26).
The wedge member (16) includes a wedge body portion (16A) and a branch portion (16B) that are arranged side by side and integrated with each other.
The branch portion (16B) is inserted vertically through the cavity portion (26), and stopper portions (37), (37) are provided on both side surfaces of the branch portion (16B) and are held by the holding means (32) so that the wedge member (16) does not descend under its own weight.
The wedge body portion (16A) is inserted into the upper and lower jaw portions (18) and (19), and is configured to be fastened to the fastening hole (14) when the wedge member (16) is moved downward with a force greater than the holding force of a holding means (32) that holds the branch portion (16B),
The holding means (32) includes a cylindrical portion (33) through which the branch portion (16B) is inserted, and a pair of elastic holding portions (34), (34) extending from the cylindrical portion (33) and facing both side surfaces of the branch portion (16B),
The elastic retaining portions (34)(34) receive the stopper portions (37)(37) of the branch portions (16B) to stop the wedge member (16) from descending under its own weight, and are configured so that when a downward force is applied to the wedge member (16), the elastic retaining portions (34)(34) are spread apart by the stopper portions (37)(37) and allow the wedge member (16) to move downward by passing through the stopper portions (37)(37). 前記枝部(16B)は、上下方向の中間部に位置して遊動領域(40)を設け、該遊動領域(40)の上端に設けた下向き凸状段部により前記ストッパ部(37)(37)を形成しており、
前記遊動領域(40)は、前記弾性保持部(34)(34)により上下動自在に摘持され、該遊動領域(40)を介して楔部材(16)の自重による下降を許すが、前記ストッパ部(37)(37)が弾性保持部(34)(34)に載置された状態で該楔部材(16)の下降を停止させるように構成されて成ることを特徴とする請求項１に記載の足場における楔緊結装置。 The branch portion (16B) has a free movement region (40) located in the vertical middle portion, and the stopper portions (37), (37) are formed by downwardly protruding steps provided at the upper ends of the free movement region (40).
2. A wedge fastening device for scaffolding as described in claim 1, characterized in that the free movement area (40) is pinched by the elastic retaining portions (34)(34) so as to be freely movable up and down, and allows the wedge member (16) to descend due to its own weight via the free movement area (40), but is configured so that the descent of the wedge member (16) is stopped when the stopper portions (37)(37) are placed on the elastic retaining portions (34)(34). 前記枝部(16B)は、前記遊動領域(40)の下端に設けた上向き凸状段部により保持受部(39)(39)を形成し、
前記遊動領域(40)を介して枝部(16B)が上昇させられ、前記保持受部(39)(39)が前記弾性保持部(34)(34)に当接した状態で、楔部材(16)に上向きの力が与えられたとき、前記弾性保持部(34)(34)が前記保持受部(39)(39)により押し広げられ、該保持受部(39)(39)を通過させることにより楔部材(16)の上動を許すように構成されて成ることを特徴とする請求項２に記載の足場における楔緊結装置。 The branch portion (16B) forms a holding portion (39) (39) by an upwardly protruding step portion provided at the lower end of the free movement region (40),
3. A wedge fastening device for scaffolding as described in claim 2, characterized in that when an upward force is applied to the wedge member (16) with the branch portion (16B) being raised through the free movement region (40) and the holding receiving portions (39)(39) abutting against the elastic holding portions (34)(34), the elastic holding portions (34)(34) are pushed apart by the holding receiving portions (39)(39) to allow the wedge member (16) to move upward by passing through the holding receiving portions (39)(39). 前記連結金具は、前記空所部(26)から尾端部に向けて開口部(27)を設けており、
前記保持手段(32)は、前記筒部(33)から延設された取付部(35)を前記開口部(27)に挿入することにより設置されて成ることを特徴とする請求項１、２又は３に記載の足場における楔緊結装置。 The connecting fitting has an opening (27) extending from the cavity portion (26) toward the tail end portion,
The wedge fastening device for scaffolding as described in claim 1, 2 or 3, characterized in that the retaining means (32) is installed by inserting an attachment portion (35) extending from the tubular portion (33) into the opening (27).
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