JP6305383B2 - Scaffolding member connection structure and scaffolding member - Google Patents

Scaffolding member connection structure and scaffolding member Download PDF

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JP6305383B2
JP6305383B2 JP2015196687A JP2015196687A JP6305383B2 JP 6305383 B2 JP6305383 B2 JP 6305383B2 JP 2015196687 A JP2015196687 A JP 2015196687A JP 2015196687 A JP2015196687 A JP 2015196687A JP 6305383 B2 JP6305383 B2 JP 6305383B2
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山田　博
博 山田
敏朗 青山
敏朗 青山
賢樹 河合
賢樹 河合
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信和株式会社
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本発明は、足場部材が足場支柱に連結されている連結構造、及び該連結構造に使用される足場部材に関するものである。   The present invention relates to a connection structure in which a scaffold member is connected to a scaffold column, and a scaffold member used in the connection structure.

住宅やビル等の建物、橋梁やトンネル等の土木構造物の建築現場では、踏み板を架設するための横架材や、手摺り等として使用される横架材が、足場支柱に連結されて足場が構築されている。このように横架材を足場支柱に連結するために、従前より、横架材の端部に楔が固着された足場部材が多用されている。この楔が、足場支柱の外周面に設けられたブラケットに挿入されることにより、横架材が足場支柱に連結される。この足場部材は構造がシンプルで製造しやすく広く使用されているが、下方から加わる外力によって、楔がブラケットから抜け出しやすいという問題があった。   In construction sites for buildings such as houses and buildings, and civil engineering structures such as bridges and tunnels, horizontal members for laying treads and horizontal members used as handrails are connected to scaffolding columns and scaffolds. Has been built. In order to connect the horizontal member to the scaffolding column in this way, a scaffold member in which a wedge is fixed to the end of the horizontal member has been frequently used. By inserting the wedge into a bracket provided on the outer peripheral surface of the scaffolding column, the horizontal member is connected to the scaffolding column. This scaffold member has a simple structure and is easy to manufacture, and is widely used. However, there is a problem that the wedge is easily pulled out of the bracket by an external force applied from below.

そこで、本出願人は図６に示すように、楔部１１０が楔部本体１２０と、楔部本体１２０の内部空間に挿入される抜け止め体１３０とを備える足場部材１００を、既に提案している（特許文献１参照）。この足場部材１００は、ブラケット５０を介して足場支柱Ｐ２に連結される点では従前の足場部材と同様であり、ブラケット５０は、足場支柱Ｐ２の外周面に固着された一対の側面５１と、一対の側面を連結する中間面５２によって、横断面コ字形に形成されている。   Therefore, as shown in FIG. 6, the present applicant has already proposed a scaffold member 100 in which the wedge portion 110 includes a wedge portion main body 120 and a retaining member 130 inserted into the internal space of the wedge portion main body 120. (See Patent Document 1). The scaffold member 100 is the same as the conventional scaffold member in that it is connected to the scaffold column P2 via the bracket 50, and the bracket 50 includes a pair of side surfaces 51 fixed to the outer peripheral surface of the scaffold column P2, and a pair. Are formed in a U-shaped cross section by an intermediate surface 52 connecting the side surfaces of the two.

足場部材１００の楔部本体１２０は、横架材Ｐ１の端部に一部が固着されており、横架材Ｐ１の軸方向に交差する上下方向に延びていると共に下端に向かって幅が減少するテーパ状となった一対の楔側面部１２１と、一対の楔側面部１２１を横架材Ｐ１の端部に固着された側とは反対側で連結している楔中間面部１２２と、一対の楔側面部１２１の下端を連結することにより楔部本体１２０の下端を閉端としている閉端部１２３と、一対の楔側面部の上端を連結している上面部１２４に貫設された挿通孔部１２５とを有しており、一対の楔側面部１２１それぞれにおいて楔中間面部１２２とは反対側の辺が開端となっている。   A part of the wedge body 120 of the scaffold member 100 is fixed to the end of the horizontal member P1, extends in the vertical direction intersecting the axial direction of the horizontal member P1, and decreases in width toward the lower end. A pair of wedge side surface portions 121 having a tapered shape, a wedge intermediate surface portion 122 connecting the pair of wedge side surface portions 121 on the side opposite to the side fixed to the end of the horizontal member P1, and a pair of wedge side surface portions 121 By inserting the lower end of the wedge side surface portion 121, an insertion hole penetrating the closed end portion 123 having the lower end of the wedge portion main body 120 as the closed end and the upper surface portion 124 connecting the upper ends of the pair of wedge side surface portions. And a side opposite to the wedge intermediate surface portion 122 in each of the pair of wedge side surface portions 121 is an open end.

抜け止め体１３０は、細長い平板状で、上端に挿通孔部１２５を通過不能な突起部１３２を有している。抜け止め体１３０の縦断面の形状は、上端から下端側に向かって直線状に延びており、楔部本体１２０の楔中間面部１２２とは反対側に向かって略Ｌ字状に湾曲した湾曲部１３５を下端に有している。また、抜け止め体１３０において突起部１３２より下側の部分の長さは、挿通孔部１２５の周縁から閉端部１２３までの長さより長い。   The retaining member 130 has an elongated flat plate shape, and has a protrusion 132 that cannot pass through the insertion hole 125 at the upper end. The shape of the longitudinal cross section of the retaining body 130 extends linearly from the upper end toward the lower end, and is a curved portion that is curved in a substantially L shape toward the opposite side of the wedge intermediate surface portion 122 of the wedge portion main body 120. 135 at the lower end. In addition, the length of the portion below the protrusion 132 in the retaining member 130 is longer than the length from the peripheral edge of the insertion hole 125 to the closed end 123.

このような構成により、楔部本体１２０が足場支柱Ｐ２のブラケット５０内に挿入された状態で、楔部本体１２０の内部空間に抜け止め体１３０を落とし込むと、抜け止め体１３０の下端は楔部本体１２０の閉端部１２３にぶつかり、直下へのそれ以上の移動が制限されるため、抜け止め体１３０の下端側は閉端部１２３の近傍の開端から外方に向かって斜めに延び出す。つまり、抜け止め体１３０が楔部本体１２０の内部空間を斜めに貫通した状態となる。   With such a configuration, when the retaining body 130 is dropped into the inner space of the wedge body 120 in a state where the wedge body 120 is inserted into the bracket 50 of the scaffolding column P2, the lower end of the retaining body 130 becomes the wedge portion. Since it collides with the closed end portion 123 of the main body 120 and further movement thereof is restricted, the lower end side of the retaining body 130 extends obliquely outward from the open end in the vicinity of the closed end portion 123. That is, the retaining body 130 is in a state of passing through the internal space of the wedge body 120 obliquely.

これにより、足場部材１００の横架材Ｐ１に下方から上方に向かう外力が加わった場合など、楔部本体１２０に下方から上方に向かう外力が加わったとしても、楔部本体１２０から外方に向かって斜めに延び出している抜け止め体１３０の下端側が、ブラケット５０の中間面５２の下端縁と干渉するため、楔部本体１２０がブラケット５０から抜け出すことが抑制される。   As a result, even if an external force is applied to the wedge member main body 120 from the bottom to the top, such as when an external force is applied to the horizontal member P1 of the scaffold member 100 from below, the wedge member main body 120 is directed outward. Thus, the lower end side of the retaining body 130 that extends obliquely interferes with the lower end edge of the intermediate surface 52 of the bracket 50, so that the wedge body 120 is prevented from coming out of the bracket 50.

上記の足場部材１００では、楔部本体１２０及びブラケット５０と抜け止め体１３０とが、次の三カ所で当接しているとき、抜け止め体１３０が楔部本体１２０の抜け止めとして作用している姿勢が安定して保持される。すなわち、抜け止め体１３０において楔中間面部１２２に対面した外側面１３０ａが、上端側で挿通孔部１２５の足場支柱Ｐ２側の周縁と当接し（図示Ａ）、外側面１３０ａが下端側で閉端部１２３の開端縁と当接し（図示Ｂ）、且つ、抜け止め体１３０において外側面１３０ａとは反対側の内側面１３０ｂが、ブラケット５０における中間面５２の下端縁と当接している（図示Ｃ）ときである。   In the scaffold member 100 described above, when the wedge main body 120 and the bracket 50 and the retaining member 130 are in contact with each other at the following three locations, the retaining member 130 acts as a retaining member for the wedge body 120. The posture is held stably. That is, the outer surface 130a facing the wedge intermediate surface portion 122 in the retaining body 130 abuts on the scaffolding column P2 side periphery of the insertion hole portion 125 on the upper end side (A in the figure), and the outer surface 130a is closed on the lower end side. The inner surface 130b of the retaining member 130 is in contact with the lower end edge of the intermediate surface 52 (illustration C). ) When.

しかしながら、多数の足場支柱Ｐ２それぞれが備えるブラケット５０の寸法精度は、あまり高くはないのが実情である。具体的には、ブラケット５０の中間面５２と足場支柱Ｐ２の外周面との間の距離には、ブラケット５０ごとに１ｍｍ程度までのばらつきがある。そのため、ＢとＣとでは当接しているもののＡでは当接しておらず、抜け止め体１３０と挿通孔部１２５の周縁との間に空隙が生じることがあった。或いは、上端の突起部１３２が挿通孔部１２５の周縁に引き掛かることにより抜け止め体１３０の落下が防止されていると共に、下端側はＢで当接しているものの、Ｃでは当接しておらずブラケット５０と抜け止め体１３０との間に空隙が生じることがあった。そのため、足場部材１００を足場支柱Ｐ２に連結した状態で、抜け止め体１３０の姿勢ががたつく場合があった。   However, in reality, the dimensional accuracy of the bracket 50 provided in each of the large number of scaffolding pillars P2 is not so high. Specifically, the distance between the intermediate surface 52 of the bracket 50 and the outer peripheral surface of the scaffolding column P2 varies up to about 1 mm for each bracket 50. For this reason, B and C are in contact with each other, but A is not in contact with each other, and a gap may be generated between the retaining member 130 and the periphery of the insertion hole 125. Alternatively, the stopper 132 is prevented from falling by the protrusion 132 at the upper end being hooked on the periphery of the insertion hole 125 and the lower end is in contact with B, but is not in contact with C. There was a case where a gap was generated between the bracket 50 and the retaining member 130. For this reason, there is a case where the posture of the retaining member 130 is not stable in a state where the scaffold member 100 is connected to the scaffold column P2.

特開２０１５−０９００３９号公報Japanese Patent Laying-Open No. 2015-090039

そこで、本発明は、上記の実情に鑑み、足場支柱のブラケットに足場部材の楔部が挿入された足場部材の連結構造であって、楔部がブラケットから抜け出ることが抑制されている姿勢を、がたつきなく安定して保持できる足場部材の連結構造、及び、該連結構造に使用される足場部材の提供を、課題とするものである。   Therefore, in view of the above situation, the present invention is a scaffold member connection structure in which the wedge portion of the scaffold member is inserted into the bracket of the scaffold column, and the posture in which the wedge portion is prevented from coming out of the bracket is It is an object of the present invention to provide a scaffold member connection structure that can be stably held without rattling, and a scaffold member used in the connection structure.

上記の課題を解決するため、本発明にかかる足場部材の連結構造（以下、単に「連結構造」と称することがある）は、
「横架材の少なくとも一方の端部に楔部を備える足場部材が、外周面に横断面コ字形のブラケットが設けられた足場支柱に連結されている足場部材の連結構造であって、
前記足場部材の前記楔部は、楔部本体と該楔部本体の内部空間に挿入されている抜け止め体とを備え、
前記楔部本体は、
それぞれ前記横架材の端部に一部が固着されており、前記横架材の軸方向に交差する上下方向に延びていると共に下端に向かって幅が減少しているテーパ状の一対の楔側面部と、
前記横架材に固着されている側とは反対側で一対の前記楔側面部を連結している楔中間面部と、
一対の前記楔側面部の下端を連結しており前記楔部本体の下端を閉端としている閉端部と、
一対の前記楔側面部の上辺を周縁とする挿通孔部、または、一対の前記楔側面部の上端を連結している上面部に貫設されている挿通孔部と、を有していると共に、
一対の前記楔側面部それぞれにおいて前記楔中間面部とは反対側の辺が、少なくとも前記閉端部の近傍で開端となっており、
前記抜け止め体は、
上端近傍で突出している前記挿通孔部を通過不能な突起部と、
前記楔中間面部に対面する外側面において、前記突起部が設けられた上端部より突出している第一当接部と、
前記外側面と反対側の内側面において、下端より上方で突出している第二当接部と、を有していると共に、
前記突起部から下端までの上下方向の長さが、前記挿通孔部の周縁から前記閉端部までの長さより長いものであり、
前記楔部本体が前記ブラケットに挿入されて、前記抜け止め体が前記楔部本体の内部空間を貫通して下端側が前記閉端部の近傍の前記開端から外方に向かって斜めに延び出していると共に、
前記抜け止め体において、前記外側面の下端近傍が前記楔部本体の前記閉端部の開端縁に当接し、前記第一当接部が前記楔部本体の前記楔中間面部に当接し、且つ、前記第二当接部が前記ブラケットの内周面に当接している」ことを特徴とする。 In order to solve the above-described problems, the scaffold member connection structure according to the present invention (hereinafter, simply referred to as “connection structure”)
“The scaffold member having a wedge portion at least at one end of the horizontal member is a connection structure of a scaffold member connected to a scaffold column having a U-shaped bracket on the outer peripheral surface,
The wedge part of the scaffold member includes a wedge part main body and a retaining member inserted into the internal space of the wedge part main body,
The wedge body is
A pair of tapered wedges, each partially fixed to the end of the horizontal member, extending in the vertical direction intersecting the axial direction of the horizontal member and decreasing in width toward the lower end Side part,
A wedge intermediate surface portion connecting the pair of wedge side surface portions on the side opposite to the side fixed to the horizontal member;
A closed end portion that connects the lower ends of the pair of wedge side surface portions and has the lower end of the wedge portion main body as a closed end;
And having an insertion hole portion having an upper edge of the pair of wedge side surface portions as a peripheral edge, or an insertion hole portion penetrating in an upper surface portion connecting the upper ends of the pair of wedge side surface portions. ,
In each of the pair of wedge side surface portions, the side opposite to the wedge intermediate surface portion is an open end at least in the vicinity of the closed end portion,
The retaining body is
A protrusion that cannot pass through the insertion hole protruding near the upper end; and
A first abutting portion projecting from an upper end portion provided with the protruding portion on the outer surface facing the wedge intermediate surface portion;
A second abutting portion protruding above the lower end on the inner surface opposite to the outer surface, and
The length in the vertical direction from the protrusion to the lower end is longer than the length from the peripheral edge of the insertion hole to the closed end,
The wedge body is inserted into the bracket, the retaining member penetrates the internal space of the wedge body, and the lower end extends obliquely outward from the open end in the vicinity of the closed end. And
In the retainer, the vicinity of the lower end of the outer surface abuts on the open end edge of the closed end portion of the wedge portion main body, the first abutment portion abuts on the wedge intermediate surface portion of the wedge portion main body, and The second contact portion is in contact with the inner peripheral surface of the bracket.

「楔側面部」は、下端に向かって幅が減少するテーパ状であるため、足場支柱の外周面に設けられた横断面コ字形のブラケットに楔部本体を挿入すると、楔側面部がブラケットの上端縁と干渉し、楔部本体がブラケット内にしっかりと保持される。   The “wedge side portion” has a tapered shape with a width decreasing toward the lower end. Therefore, when the wedge portion body is inserted into a U-shaped bracket provided on the outer peripheral surface of the scaffolding column, the wedge side portion is Interfering with the upper edge, the wedge body is securely held in the bracket.

「楔中間面部」は、一対の楔側面部の片側を連結している面である。楔中間面部は平面であってもよいが、足場支柱が円筒状又は円柱状である場合には、足場支柱の外周面に沿うような湾曲面とすることができる。   The “wedge intermediate surface portion” is a surface connecting one side of the pair of wedge side surface portions. The wedge intermediate surface portion may be a flat surface, but when the scaffolding column is cylindrical or columnar, it can be a curved surface along the outer peripheral surface of the scaffolding column.

「閉端部」は、一対の楔側面部の下端同士を湾曲しつつ連結している湾曲面や、一対の楔側面部それぞれと交差する方向に連結している平面とすることができる。   The “closed end portion” can be a curved surface that connects the lower ends of the pair of wedge side surface portions while bending, or a plane that is connected in a direction intersecting with each of the pair of wedge side surface portions.

「挿通孔部」は、一対の楔側面部の上辺を開端とすることにより形成される挿通孔部、または、一対の楔側面部の上端を連結している上面部に貫設されている挿通孔部の何れかが、選択的に採用されるものである。   The “insertion hole portion” is an insertion hole portion formed by opening the upper sides of the pair of wedge side surface portions, or an insertion through the upper surface portion connecting the upper ends of the pair of wedge side surface portions. Any one of the holes is selectively adopted.

「一対の前記楔側面部それぞれにおいて前記楔中間面部とは反対側の辺」は、「少なくとも前記閉端部の近傍で開端となっている」ものであれば、閉端部から横架材の端部に固着されている部分までの全長に亘って開端となっている構成であっても、閉端部の近傍のみが開端となっている構成であってもよい。   If the “side opposite to the wedge intermediate surface portion in each of the pair of wedge side surface portions” is “at least an open end in the vicinity of the closed end portion”, from the closed end portion to the horizontal member Even if it is the structure which becomes an open end over the full length to the part fixed to the edge part, the structure where only the vicinity of a closed end part is an open edge may be sufficient.

「抜け止め体」は、上端から下端まで直線状に延びる形状とすることができるが、下端側が楔中間面部とは反対側へ屈曲又は湾曲している構成とすれば、詳細は後述する抜け止め作用をより効果的に奏するため、望ましい。   The “slip-off body” can be shaped to extend linearly from the upper end to the lower end. However, if the lower end side is bent or curved to the opposite side of the wedge intermediate surface, details will be described later. This is desirable because the effect is more effective.

「突起部」は、挿通孔部を通過不能であればその形状は特に限定されないが、抜け止め体を貫通したピンが突出している構成、抜け止め体と一体で抜け止め体の上端から側方に延出している構成、抜け止め体の上端を屈曲させた構成、を例示することができる。   The shape of the “protrusion” is not particularly limited as long as it cannot pass through the insertion hole, but the structure in which the pin penetrating the retaining body protrudes, is integrated with the retaining body, and is located laterally from the upper end of the retaining body. And a configuration in which the upper end of the retaining member is bent can be exemplified.

本構成の連結構造は、足場支柱の外周面に設けられた横断面コ字形のブラケットに足場部材の楔部本体が挿入されており、抜け止め体が楔部本体のブラケットからの抜け止めとして作用している構造である。この連結構造は、抜け止め体が引き上げられ抜け止め体の下端が楔部本体の内部空間に引き入れられている状態で、楔部本体を足場支柱のブラケットに挿入した後、抜け止め体を楔部本体の内部空間に落とし込むことにより形成される。すなわち、抜け止め体は、楔部本体の挿通孔部を通過不能な突起部より下側の部分の上下方向の長さが、挿通孔部の周縁から閉端部までの長さより長い。そのため、抜け止め体を楔部本体の内部空間に落とし込むと、抜け止め体の下端は楔部本体の下端を閉塞している閉端部にぶつかって直下へのそれ以上の移動が制限され、閉端部の近傍の開端から外方に向かって斜めに延び出す。これにより、足場部材の横架材に下方から上方に向かう外力が加わった場合など、楔部本体に下方から上方に向かう外力が加わったとしても、抜け止め体の下端側で外方に向かって斜めに延び出している部分がブラケットの下端縁と干渉するため、楔部本体がブラケットから抜け出すことが有効に抑制される。なお、抜け止め体は、上端部に挿通孔部を通過不能な突起部を有しているため、楔部本体を完全に通過して下方に落下することがない。   In this connection structure, the wedge body of the scaffold member is inserted into a bracket having a U-shaped cross section provided on the outer peripheral surface of the scaffolding column, and the retaining member acts as a retaining member from the bracket of the wedge body. This is the structure. In this connection structure, after the retaining body is pulled up and the lower end of the retaining body is pulled into the internal space of the wedge body, the wedge body is inserted into the bracket column bracket, and then the retaining body is It is formed by dropping into the internal space of the main body. That is, in the retaining body, the length in the vertical direction of the portion below the protrusion that cannot pass through the insertion hole of the wedge body is longer than the length from the periphery of the insertion hole to the closed end. For this reason, when the retaining body is dropped into the internal space of the wedge body, the lower end of the retaining body collides with the closed end that closes the lower end of the wedge body, restricting further movement directly below the closed body. It extends obliquely outward from the open end in the vicinity of the end. As a result, even if an external force is applied to the horizontal member of the scaffolding member from below to above, such as when an external force from below to above is applied to the wedge body, it is directed outward on the lower end side of the retaining member. Since the portion extending obliquely interferes with the lower end edge of the bracket, it is possible to effectively suppress the wedge body from coming out of the bracket. In addition, since the retaining body has a protrusion that cannot pass through the insertion hole at the upper end, it does not completely pass through the wedge body and fall downward.

そして、本構成の連結構造において、楔部本体を斜め方向に貫通している抜け止め体は、楔中間面部に対面する外側面における上下の二カ所と、外側面とは反対側の内側面における一カ所との計三カ所で、楔部本体及びブラケットの内周面に当接している。すなわち、抜け止め体において、外側面の下端近傍が楔部本体の閉端部の開端縁に当接しており、第一当接部が楔部本体の楔中間面部に当接しており、且つ、第二当接部がブラケットの内周面に当接している。これにより、抜け止め体が楔部本体を斜め方向に貫通し、ブラケットからの楔部本体の抜け止めとして作用している姿勢が、がたつくことなく安定して保持される。   In the connection structure of the present configuration, the retaining body that passes through the wedge body in the oblique direction is formed at two locations on the outer surface facing the wedge intermediate surface portion and on the inner surface on the opposite side of the outer surface. It is in contact with the wedge body and the inner peripheral surface of the bracket at three locations, one in total. That is, in the retaining body, the vicinity of the lower end of the outer surface is in contact with the open end edge of the closed end portion of the wedge portion body, the first contact portion is in contact with the wedge intermediate surface portion of the wedge portion body, and The second contact portion is in contact with the inner peripheral surface of the bracket. Thus, the posture in which the retaining body penetrates the wedge body in the oblique direction and acts as a retaining body for the wedge body from the bracket is stably maintained without rattling.

本発明にかかる足場部材の連結構造は、上記構成において、「前記抜け止め体は、前記上端部に対して、前記上端部より下方の部分が前記楔中間面部に向かって屈曲しており、その屈曲の角部が前記第一当接部を構成している」ものとすることができる。   The connection structure of the scaffold member according to the present invention is as follows. In the above structure, “the retaining member is bent with respect to the upper end portion toward the wedge intermediate surface portion at a portion below the upper end portion. The corner portion of the bend constitutes the first contact portion ”.

「第一当接部」としては、上端から下端まで略直線状に延びている形状の抜け止め体において、その外側面から突出している構成も想到しうるところ、本構成では、抜け止め体の形状を、上端部より下方の部分が上端部に対して楔中間面部側に屈曲している形状とし、その屈曲の角部を第一当接部としている。これにより、抜け止め体が楔部本体を斜めに貫通している状態では、略直線状の抜け止め体から第一当接部が突出している場合に比べ、抜け止め体の上端部と足場支柱との間により広い空隙が生じる。従って、この空隙を使用して、足場用の他の部材を設置することができる。また、略直線状の抜け止め体から第一当接部が突出している場合に比べ、抜け止め体の厚さを大きくすることができるため、抜け止め体の剛性を高めることができ、ひいては連結構造の強度を高いものとすることができる。   As the “first abutting portion”, a configuration that protrudes from the outer surface of the retaining member that extends substantially linearly from the upper end to the lower end can be conceived. The shape is such that the portion below the upper end is bent toward the wedge intermediate surface with respect to the upper end, and the corner of the bend is the first contact portion. Thereby, in the state in which the retaining body obliquely penetrates the wedge body, the upper end portion of the retaining body and the scaffold column are compared to the case where the first contact portion protrudes from the substantially linear retaining body. A wider gap is formed between the two. Therefore, this gap can be used to install another member for the scaffold. In addition, the thickness of the retaining body can be increased compared to the case where the first abutment portion protrudes from the substantially linear retaining body, so that the rigidity of the retaining body can be increased, and as a result The strength of the structure can be increased.

次に、本発明にかかる足場部材は、
「横架材の少なくとも一方の端部に楔部を備える足場部材であって、
前記楔部は、楔部本体と該楔部本体の内部空間に挿入される抜け止め体とを備え、
前記楔部本体は、
それぞれ前記横架材の端部に一部が固着されており、前記横架材の軸方向に交差する上下方向に延びていると共に下端に向かって幅が減少しているテーパ状の一対の楔側面部と、
前記横架材に固着されている側とは反対側で一対の前記楔側面部を連結している楔中間面部と
一対の前記楔側面部の下端を連結しており前記楔部本体の下端を閉端としている閉端部と、
一対の前記楔側面部の上辺を周縁とする挿通孔部、または、一対の前記楔側面部の上端を連結している上面部に貫設されている挿通孔部と、を有していると共に、
一対の前記楔側面部それぞれにおいて前記楔中間面部とは反対側の辺が、少なくとも前記閉端部の近傍で開端となっており、
前記抜け止め体は、
上端近傍で突出している前記挿通孔部を通過不能な突起部と、
前記楔中間面部に対面する外側面において、前記突起部が設けられた上端部より突出している第一当接部と、
前記外側面と反対側の内側面において、下端より上方で突出している第二当接部と、を有していると共に、
前記突起部から下端までの上下方向の長さが、前記挿通孔部の周縁から前記閉端部までの長さより長いものである」ことを特徴とする。 Next, the scaffold member according to the present invention is:
"A scaffolding member having a wedge portion at at least one end of the horizontal member,
The wedge portion includes a wedge portion main body and a retaining member inserted into the internal space of the wedge portion main body,
The wedge body is
A pair of tapered wedges, each partially fixed to the end of the horizontal member, extending in the vertical direction intersecting the axial direction of the horizontal member and decreasing in width toward the lower end Side part,
The wedge intermediate surface portion connecting the pair of wedge side surface portions on the side opposite to the side fixed to the horizontal member and the lower ends of the pair of wedge side surface portions are connected, and the lower end of the wedge portion main body is A closed end that is closed; and
And having an insertion hole portion having an upper edge of the pair of wedge side surface portions as a peripheral edge, or an insertion hole portion penetrating in an upper surface portion connecting the upper ends of the pair of wedge side surface portions. ,
In each of the pair of wedge side surface portions, the side opposite to the wedge intermediate surface portion is an open end at least in the vicinity of the closed end portion,
The retaining body is
A protrusion that cannot pass through the insertion hole protruding near the upper end; and
A first abutting portion projecting from an upper end portion provided with the protruding portion on the outer surface facing the wedge intermediate surface portion;
A second abutting portion protruding above the lower end on the inner surface opposite to the outer surface, and
The length in the vertical direction from the protrusion to the lower end is longer than the length from the periphery of the insertion hole to the closed end ”.

本構成の足場部材は、上記の連結構造に使用される足場部材である。この足場部材の楔部本体を足場支柱のブラケットに挿入した後、抜け止め体を楔部本体の内部空間に落とし込むと、上記のように抜け止め体は楔部本体を斜めに貫通した状態となる。本構成の足場部材では、第一当接部は、抜け止め体の外側面において上端部より突出している。そのため、従来の連結構造（特許文献１）とは異なり、上端部が挿通孔部の周縁という「特定の箇所」で当接しなくても、第一当接部が楔中間面部の内周壁の「どこか」で当接する。また、本構成の足場部材では、第二当接部は、抜け止め体の内側面において下端より上方で突出している。そのため、従来の連結構造（特許文献１）とは異なり、下端近傍がブラケットの下端縁という「特定の箇所」で当接しなくても、第二当接部がブラケットの内周壁の「どこか」で当接する。従って、本構成の足場部材によれば、抜け止め体が楔部本体及びブラケットと三カ所で当接している上記の連結構造を、確実に構築することができる。   The scaffold member of this structure is a scaffold member used for said connection structure. After the wedge body of the scaffold member is inserted into the bracket support bracket, when the retaining body is dropped into the internal space of the wedge body, the retaining body enters the wedge body obliquely as described above. . In the scaffold member of this configuration, the first contact portion protrudes from the upper end portion on the outer surface of the retaining member. Therefore, unlike the conventional connection structure (Patent Document 1), even if the upper end portion does not abut at a “specific location” that is the periphery of the insertion hole portion, the first abutting portion is “on the inner peripheral wall of the wedge intermediate surface portion. It abuts somewhere. Moreover, in the scaffold member of this structure, the 2nd contact part protrudes above the lower end in the inner surface of a retaining body. Therefore, unlike the conventional connection structure (Patent Document 1), the second contact portion is “somewhere” on the inner peripheral wall of the bracket, even if the vicinity of the lower end does not contact at a “specific location” that is the lower end edge of the bracket. Abut. Therefore, according to the scaffold member of this configuration, the above-described connection structure in which the retaining member is in contact with the wedge body and the bracket at three positions can be reliably constructed.

以上のように、本発明の効果として、足場支柱のブラケットに足場部材の楔部が挿入された足場部材の連結構造であって、楔部がブラケットから抜け出ることが抑制されている姿勢をがたつきなく安定して保持できる足場部材の連結構造、及び、該連結構造に使用される足場部材を、提供することができる。   As described above, as an effect of the present invention, the scaffold member connection structure in which the wedge portion of the scaffold member is inserted into the bracket of the scaffold column, and the posture in which the wedge portion is suppressed from coming out of the bracket is prevented. It is possible to provide a connection structure for a scaffold member that can be stably held without sticking, and a scaffold member used for the connection structure.

本発明の一実施形態である足場部材の斜視図である。It is a perspective view of the scaffold member which is one Embodiment of this invention. 図１の足場部材における抜け止め体の（ａ）斜視図、及び、（ｂ）縦断面図である。It is the (a) perspective view and (b) longitudinal cross-sectional view of the retaining body in the scaffold member of FIG. 図１の足場部材を使用した連結構造の縦断面図である。It is a longitudinal cross-sectional view of the connection structure using the scaffold member of FIG. 抜け止め体を楔部本体の内部空間に落とし込む前の連結構造の斜視図である。It is a perspective view of the connection structure before dropping the retaining body into the internal space of the wedge body. 抜け止め体の他の構成を示す縦断面図である。It is a longitudinal cross-sectional view which shows the other structure of a retaining body. 従来の足場部材について（ａ）これを使用した連結構造の側面図、及び、（ｂ）抜け止め体の斜視図である。It is (a) the side view of the connection structure using this about a conventional scaffold member, and (b) the perspective view of a retaining body.

以下、本発明の一実施形態である足場部材１、及び、足場部材１を使用した連結構造について、図１乃至図４を用いて説明する。まず、足場部材１の構成について説明する。足場部材１は、横架材Ｐ１の少なくとも一方の端部に楔部１０を備えているものである。楔部１０は、楔部本体２０と楔部本体２０の内部空間に挿入される抜け止め体３０とを備えている。   Hereinafter, a scaffold member 1 according to an embodiment of the present invention and a connection structure using the scaffold member 1 will be described with reference to FIGS. 1 to 4. First, the structure of the scaffold member 1 will be described. The scaffold member 1 includes a wedge portion 10 at at least one end of the horizontal member P1. The wedge portion 10 includes a wedge portion main body 20 and a retaining body 30 that is inserted into the internal space of the wedge portion main body 20.

楔部本体２０は、それぞれ横架材Ｐ１の端部に一部が固着されており、横架材Ｐ１の軸方向に交差する上下方向に延びていると共に下端に向かって幅が減少しているテーパ状の一対の楔側面部２１と、横架材Ｐ１に固着されている側とは反対側で一対の楔側面部２１を連結している楔中間面部２２と、一対の楔側面部２１の下端を連結しており楔部本体２０の下端を閉端としている閉端部２３と、一対の楔側面部２１の上辺を周縁とする挿通孔部２５とを有しており、一対の楔側面部２１それぞれにおいて楔中間面部２２とは反対側の辺が、少なくとも閉端部２３の近傍で開端２９となっている。   A part of the wedge body 20 is fixed to the end of the horizontal member P1, extends in the vertical direction intersecting the axial direction of the horizontal member P1, and decreases in width toward the lower end. A pair of tapered wedge side surfaces 21, a wedge intermediate surface portion 22 connecting the pair of wedge side surfaces 21 on the side opposite to the side fixed to the horizontal member P 1, and a pair of wedge side surfaces 21 It has a closed end 23 that connects the lower ends and has the lower end of the wedge main body 20 as a closed end, and an insertion hole portion 25 that has the upper sides of the pair of wedge side surfaces 21 as a peripheral edge. In each part 21, the side opposite to the wedge intermediate surface part 22 is an open end 29 at least in the vicinity of the closed end part 23.

抜け止め体３０は、上端近傍で突出している挿通孔部２５を通過不能な突起部３４と、楔中間面部２２に対面する外側面３０ａにおいて、突起部３４が設けられた上端部３１より突出している第一当接部３５と、外側面３０ａと反対側の内側面３０ｂにおいて、下端より上方で突出している第二当接部３６とを有していると共に、突起部３４から下端までの上下方向の長さが、挿通孔部２５の周縁から閉端部２３までの長さより長いものである。   The retaining body 30 protrudes from the upper end 31 provided with the protrusion 34 on the protrusion 34 that cannot pass through the insertion hole 25 protruding in the vicinity of the upper end and the outer surface 30a facing the wedge intermediate surface 22. The first abutting portion 35 and the inner side surface 30b opposite to the outer side surface 30a have a second abutting portion 36 protruding above the lower end, and the upper and lower sides from the protruding portion 34 to the lower end. The length in the direction is longer than the length from the peripheral edge of the insertion hole 25 to the closed end 23.

より具体的に説明すると、横架材Ｐ１は、円筒状の横架材本体４０と、横架材本体４０の少なくとも一方の端部に、横架材本体４０に内嵌した状態で固定されている連結筒部４１とを具備している。   More specifically, the horizontal member P1 is fixed to a cylindrical horizontal member main body 40 and at least one end of the horizontal member main body 40 in a state of being fitted in the horizontal member main body 40. The connecting cylinder part 41 is provided.

楔部本体２０は、楔側面部２１の上端側が、横架材Ｐ１の連結筒部４１に固着されている。楔側面部２１は、連結筒部４１に固着されている部分で、円筒状の連結筒部４１の外周面に沿うように湾曲している。この部分より下端側で、楔側面部２１は下端に向かって幅が減少するテーパ状となっており、この部分がブラケット５０内に挿入される。ここで、楔側面部２１の一対の側辺のうち、楔中間面部２２側の側辺は横架材Ｐ１の軸方向に直交する方向に延びており、もう一方の側辺は下方に向かうにつれて他方の側辺に近づくように傾斜しており、これによって楔側面部２１がテーパ状となっている。楔側面部２１の上辺は開端であり、これを周縁とする挿通孔部２５が一対の楔側面部２１間に形成されている。楔中間面部２２は、円筒状または円柱状の足場支柱Ｐ２の外周面に沿うように湾曲している。閉端部２３は、一対の楔側面部２１の下端同士を湾曲しつつ連結している。   As for the wedge part main body 20, the upper end side of the wedge side part 21 is being fixed to the connection cylinder part 41 of the horizontal member P1. The wedge side surface portion 21 is a portion fixed to the connecting tube portion 41 and is curved along the outer peripheral surface of the cylindrical connecting tube portion 41. On the lower end side from this portion, the wedge side surface portion 21 has a tapered shape whose width decreases toward the lower end, and this portion is inserted into the bracket 50. Here, of the pair of side sides of the wedge side surface portion 21, the side side on the wedge intermediate surface portion 22 side extends in a direction orthogonal to the axial direction of the horizontal member P1, and the other side side is directed downward. It is inclined so as to approach the other side, whereby the wedge side surface portion 21 is tapered. The upper side of the wedge side surface portion 21 is an open end, and an insertion hole portion 25 having this as a peripheral edge is formed between the pair of wedge side surface portions 21. The wedge intermediate surface portion 22 is curved so as to follow the outer peripheral surface of the cylindrical or columnar scaffolding column P2. The closed end portion 23 connects the lower ends of the pair of wedge side surface portions 21 while being curved.

抜け止め体３０は一体構成であるが、上端から下端に向かって上端部３１、主軸部３２、及び下端部３３に大別することができる。上端部３１は平板状であり、その略中央に貫設された孔部に圧入されたリベットが、突起部３４を構成している。主軸部３２は上端部３１に対して楔中間面部２２に向かって屈曲した後、下端部３３に至るまで直線状に延びている。下端部３３は、主軸部３２に対して楔中間面部２２とは反対側に向かって略Ｌ字状に湾曲している。そして、主軸部３２の屈曲している部分において外側面３０ａ側の角部が、第一当接部３５を構成している。また、第二当接部３６は、主軸部３２の内側面３０ｂにおいて、主軸部３２の長さの約１／３に相当する長さ分下端部３３から上方で、縦断面山形に突出している。更に、本実施形態の抜け止め体３０は、主軸部３２において一対の側辺のうち、一方の側辺の途中が横向きのコ字状に切り欠かかれている引掛け部３８を有している。   The retaining member 30 has an integrated configuration, but can be broadly divided into an upper end portion 31, a main shaft portion 32, and a lower end portion 33 from the upper end toward the lower end. The upper end portion 31 has a flat plate shape, and a rivet press-fitted into a hole penetrating substantially at the center thereof constitutes a projection portion 34. The main shaft portion 32 bends toward the wedge intermediate surface portion 22 with respect to the upper end portion 31 and then extends linearly to reach the lower end portion 33. The lower end portion 33 is curved in a substantially L shape toward the opposite side of the wedge intermediate surface portion 22 with respect to the main shaft portion 32. In the bent portion of the main shaft portion 32, the corner portion on the outer surface 30 a side constitutes the first contact portion 35. Further, the second abutting portion 36 protrudes in a vertical cross-sectional mountain shape above the lower end portion 33 by a length corresponding to about ３ of the length of the main shaft portion 32 on the inner side surface 30b of the main shaft portion 32. . Further, the retaining body 30 of the present embodiment has a hooking portion 38 in which one of the pair of side edges in the main shaft portion 32 is cut out in a horizontal U-shape. .

なお、連結筒部４１には、その端部を閉鎖するように平板状の縦板部４２が固着されており、縦板部４２は楔部本体２０の内部空間において、連結筒部４１の下端を超えて下方まで延出している。   Note that a flat plate-like vertical plate portion 42 is fixed to the connecting cylinder portion 41 so as to close the end portion thereof, and the vertical plate portion 42 is the lower end of the connecting cylinder portion 41 in the internal space of the wedge body 20. It extends to below and beyond.

上記構成の足場部材１は、ブラケット５０を有する足場支柱Ｐ２に連結される。足場支柱Ｐ２は円筒状または円柱状であり、複数のブラケット５０が外周面に設けられている。それぞれのブラケット５０は、足場支柱Ｐ２の外周面に固着された一対の側面５１と、一対の側面５１を連結する中間面５２によって、横断面コ字形に形成されている。   The scaffold member 1 having the above-described configuration is connected to a scaffold column P2 having a bracket 50. The scaffolding column P2 is cylindrical or columnar, and a plurality of brackets 50 are provided on the outer peripheral surface. Each bracket 50 is formed in a U-shaped cross section by a pair of side surfaces 51 fixed to the outer peripheral surface of the scaffolding column P2 and an intermediate surface 52 connecting the pair of side surfaces 51.

ブラケット５０に楔部１０を挿入する際には、まず抜け止め体３０の上端側を把持して上方に引き上げ、抜け止め体３０の下端側が楔部本体２０の内部空間に引き入れられた状態とする。このとき、図４に示すように、引掛け部３８を挿通孔部２５の周縁に引き掛けることにより、抜け止め体３０の下端側が楔部本体２０の内部空間に引き入れられた状態を保持することができる。   When inserting the wedge portion 10 into the bracket 50, first, the upper end side of the retaining body 30 is gripped and pulled upward, and the lower end side of the retaining body 30 is pulled into the internal space of the wedge body 20. . At this time, as shown in FIG. 4, the state in which the lower end side of the retaining body 30 is drawn into the internal space of the wedge body 20 is maintained by hooking the hook portion 38 around the periphery of the insertion hole portion 25. Can do.

この状態で楔部本体２０をブラケット５０に挿入することにより、横架材Ｐ１が足場支柱Ｐ２に連結される。楔部本体２０の楔側面部２１は、下端に向かって幅が減少するテーパ状であるため、楔側面部２１における楔中間面部２２とは反対側の側辺がブラケット５０の上端縁と干渉し、楔部本体２０がブラケット５０内にしっかりと保持される。これと共に、閉端部２３及びその近傍がブラケット５０より下方に露出する。また、この状態では、楔部本体２０の楔中間面部２２が足場支柱Ｐ２の外周面に当接する。特に、本実施形態では、楔中間面部２２が足場支柱Ｐ２の外周面に沿うように湾曲しているため、楔中間面部２２が足場支柱Ｐ２の外周面に広い面積で当接し、楔部本体２０がブラケット５０に保持された姿勢が安定する。ただし、この状態では、横架材Ｐ１に対して下方から上方に向かう外力が加わる等、楔部保内２０に対して上方に向かう外力が加わると、楔部本体２０がブラケット５０から抜け出るおそれがある。   By inserting the wedge body 20 into the bracket 50 in this state, the horizontal member P1 is connected to the scaffolding column P2. Since the wedge side surface portion 21 of the wedge portion main body 20 has a tapered shape whose width decreases toward the lower end, the side of the wedge side surface portion 21 opposite to the wedge intermediate surface portion 22 interferes with the upper end edge of the bracket 50. The wedge body 20 is firmly held in the bracket 50. At the same time, the closed end 23 and the vicinity thereof are exposed below the bracket 50. Further, in this state, the wedge intermediate surface portion 22 of the wedge portion main body 20 contacts the outer peripheral surface of the scaffolding column P2. In particular, in this embodiment, since the wedge intermediate surface portion 22 is curved so as to follow the outer peripheral surface of the scaffolding column P2, the wedge intermediate surface unit 22 abuts on the outer peripheral surface of the scaffolding column P2 over a wide area, and the wedge body 20 The posture held by the bracket 50 is stabilized. However, in this state, if an upward external force is applied to the laterally extending member P1, such as an upward external force applied to the horizontal member P1, the wedge body 20 may come out of the bracket 50. .

そこで、挿通孔部２５の周縁に引き掛けられている抜け止め体３０の引掛け部３８を外し、抜け止め体３０を楔部本体２０の内部空間に落とし込むと、図３に示すように、抜け止め体３０が抜け止めとして作用している状態なる。具体的には、下方に落とし込まれた抜け止め体３０の下端側は、ブラケット５０の内部空間を通過し、下端が楔部本体２０の閉端部２３にぶつかる。このとき、抜け止め体３０を落とし込む方向が鉛直方向からずれていても、楔部本体２０の内部空間において上下方向に延びている縦板部４２によって、抜け止め体３０の落下方向がブラケット５０の内部空間に向かうように案内される。そして、楔部本体２０の楔側面部２１は閉端部２３の近傍で開端２９となっており、抜け止め体３０において突起部３４より下側の部分の長さは挿通孔部２５の周縁から閉端部２３までの長さより長いため、閉端部２３によってそれ以上の直下への移動が制限された抜け止め体３０の下端側は、開端２９から外方に向かって斜めに延び出す。   Therefore, when the hooking portion 38 of the retaining member 30 that is hooked on the periphery of the insertion hole portion 25 is removed and the retaining member 30 is dropped into the internal space of the wedge body 20, as shown in FIG. The stopper 30 is in a state of acting as a stopper. Specifically, the lower end side of the retaining body 30 dropped downward passes through the internal space of the bracket 50, and the lower end collides with the closed end portion 23 of the wedge body 20. At this time, even if the direction in which the retainer body 30 is dropped is deviated from the vertical direction, the fall direction of the retainer body 30 is lowered by the vertical plate portion 42 extending vertically in the internal space of the wedge body 20. Guided toward the interior space. The wedge side surface portion 21 of the wedge body 20 has an open end 29 in the vicinity of the closed end portion 23, and the length of the portion of the retaining body 30 below the projection 34 is from the periphery of the insertion hole portion 25. Since it is longer than the length to the closed end 23, the lower end side of the retaining body 30 whose movement to the further lower limit by the closed end 23 extends obliquely outward from the open end 29.

その結果、抜け止め体３０は楔部本体２０を斜めに貫通し、抜け止め体３０の下端側が閉端部２３の開端縁に当接した状態となる。加えて、抜け止め体３０の外側面３０ａにおいて第一当接部３５が上端部３１より突出しているため、第一当接部３５が楔中間面部２２の内周壁のどこかで当接する。また、抜け止め体３０の内側面３０ｂにおいて第二当接部３６が下端より上方で突出しているため、第二当接部３６がブラケット５０の中間面５２の内周壁にどこかで当接する。   As a result, the retaining body 30 passes through the wedge body 20 obliquely, and the lower end side of the retaining body 30 is in contact with the open end edge of the closed end portion 23. In addition, since the first contact portion 35 protrudes from the upper end portion 31 on the outer side surface 30 a of the retaining body 30, the first contact portion 35 contacts somewhere on the inner peripheral wall of the wedge intermediate surface portion 22. Further, since the second contact portion 36 projects above the lower end on the inner side surface 30 b of the retaining body 30, the second contact portion 36 contacts the inner peripheral wall of the intermediate surface 52 of the bracket 50 somewhere.

これにより、抜け止め体３０が楔部本体２０及びブラケット５０と三カ所で当接している連結構造を、確実に構築することができる。すなわち、楔部本体２０がブラケット５０に挿入されて、抜け止め体３０が楔部本体２０の内部空間を貫通して下端側が閉端部２３の近傍の開端２９から外方に向かって斜めに延び出しており、抜け止め体３０において、外側面３０ａの下端近傍が楔部本体２０の閉端部２３の開端縁に当接し、第一当接部３５が楔部本体２０の楔中間面部２２に当接し、且つ、第二当接部３６がブラケット５０の内周面に当接している連結構造が構築される。   Thereby, the connection structure in which the retaining member 30 is in contact with the wedge body 20 and the bracket 50 at three positions can be reliably constructed. That is, the wedge portion main body 20 is inserted into the bracket 50, and the retaining body 30 penetrates the internal space of the wedge portion main body 20, and the lower end side extends obliquely outward from the open end 29 in the vicinity of the closed end portion 23. In the retaining body 30, the vicinity of the lower end of the outer side surface 30 a abuts against the open end edge of the closed end portion 23 of the wedge body 20, and the first abutment portion 35 contacts the wedge intermediate surface 22 of the wedge body 20. A connection structure is constructed in which the second abutting portion 36 abuts against the inner peripheral surface of the bracket 50.

以上のように、本実施形態の足場部材１、及び、これを使用した連結構造によれば、足場部材１の横架材Ｐ１に下方から上方に向かう外力が加わった場合など、楔部本体２０に下方から上方に向かう外力が加わったとしても、楔部本体２０から外方に斜めに延び出している抜け止め体３０の下端側が、ブラケット５０の中間面５２の下端縁と干渉するため、楔部本体２０がブラケット５０から抜け出すことが抑制されている。   As described above, according to the scaffold member 1 of the present embodiment and the connecting structure using the same, the wedge body 20 is applied to the horizontal member P1 of the scaffold member 1 when an external force is applied upward from below. Even if an external force is applied from below to above, the lower end side of the retaining body 30 that extends obliquely outward from the wedge body 20 interferes with the lower end edge of the intermediate surface 52 of the bracket 50. The part main body 20 is prevented from coming out of the bracket 50.

加えて、本実施形態の連結構造では、楔部本体２０を斜め方向に貫通している抜け止め体３０は、外側面３０ａの下端近傍で楔部本体２０の閉端部２３の開端縁に当接しており、外側面３０ａにおける第一当接部３５が楔部本体２０の楔中間面部２２に当接していると共に、内側面３０ｂにおける第二当接部３６がブラケット５０の中間面５２の内周面に当接している。つまり、抜け止め体３０は、外側面３０ａにおける上下の二カ所と、外側面３０ａとは反対側の内側面３０ｂにおける中途の高さの一カ所との計三カ所で、楔部本体２０及びブラケット５０の内周面に当接している。これにより、抜け止め体３０が楔部本体２０を斜め方向に貫通し、ブラケット５０からの楔部本体２０の抜け止めとして作用している姿勢が、がたつくことなく安定して保持される。   In addition, in the connection structure of the present embodiment, the retaining body 30 that passes through the wedge body 20 obliquely is in contact with the open end edge of the closed end 23 of the wedge body 20 near the lower end of the outer surface 30a. The first contact portion 35 on the outer surface 30 a is in contact with the wedge intermediate surface portion 22 of the wedge portion main body 20, and the second contact portion 36 on the inner surface 30 b is on the inner surface 52 of the bracket 50. It is in contact with the peripheral surface. In other words, the retaining body 30 has a total of three locations, two on the upper and lower sides on the outer surface 30a and one halfway height on the inner surface 30b opposite to the outer surface 30a. 50 is in contact with the inner peripheral surface. Accordingly, the posture in which the retaining body 30 penetrates the wedge body 20 obliquely and acts as a retaining mechanism for the wedge body 20 from the bracket 50 is stably maintained without rattling.

以上、本発明について好適な実施形態を挙げて説明したが、本発明は上記の実施形態に限定されるものではなく、以下に示すように、本発明の要旨を逸脱しない範囲において、種々の改良及び設計の変更が可能である。   The present invention has been described with reference to the preferred embodiments. However, the present invention is not limited to the above-described embodiments, and various improvements can be made without departing from the scope of the present invention as described below. And design changes are possible.

例えば、上記の実施形態では、第二当接部３６のある部分を除いて、抜け止め体３０が上端から下端まで厚さが略等しい場合を図示により例示したが、これに限定されず、下端に向かって厚さが増していく構成とすることができる。例えば、図５に示すように、主軸部３２において第二当接部３６より下方の部分３７で、下端に向かって厚さが漸次増していく構成の抜け止め体３０’とすることができる。抜け止め体３０’が楔部本体２０の抜け止めとして作用している連結構造では、横架材Ｐ１や足場支柱Ｐ２に振動などの外力が加わったとき、この部分３７に大きな負荷がかかる。従って、この部分３７の厚さを大きくすることにより、抜け止め体３０’の強度を高めることができ、ひいては連結構造の強度を高めることができる。   For example, in the above embodiment, the case where the retaining body 30 has substantially the same thickness from the upper end to the lower end except for a portion where the second contact portion 36 is present is illustrated by way of illustration, but the present invention is not limited to this. It can be set as the structure which thickness increases toward. For example, as shown in FIG. 5, a retaining body 30 ′ having a configuration in which the thickness gradually increases toward the lower end at a portion 37 below the second contact portion 36 in the main shaft portion 32 can be obtained. In the connection structure in which the retaining member 30 ′ acts as a retaining member for the wedge body 20, a large load is applied to the portion 37 when an external force such as vibration is applied to the horizontal member P <b> 1 or the scaffolding column P <b> 2. Therefore, by increasing the thickness of the portion 37, the strength of the retaining member 30 'can be increased, and consequently the strength of the connecting structure can be increased.

１ 足場部材
１０ 楔部
２０ 楔部本体
２１ 楔側面部
２２ 楔中間面部
２３ 閉端部
２５ 挿通孔部
２９ 開端
３０，３０’ 抜け止め体
３１ 上端部
３２ 主軸部
３３ 下端部
３４ 突起部
３８ 引掛け部
５０ ブラケット
５１ 側面
５２ 中間面
Ｐ１ 横架材
Ｐ２ 足場支柱 DESCRIPTION OF SYMBOLS 1 Scaffolding member 10 Wedge part 20 Wedge part main body 21 Wedge side face part 22 Wedge intermediate face part 23 Closed end part 25 Insertion hole part 29 Open end 30, 30 'Retaining body 31 Upper end part 32 Main shaft part 33 Lower end part 34 Projection part 38 Hook Part 50 Bracket 51 Side surface 52 Intermediate surface P1 Horizontal member P2 Scaffolding column

Claims (3)

横架材の少なくとも一方の端部に楔部を備える足場部材が、外周面に横断面コ字形のブラケットが設けられた足場支柱に連結されている足場部材の連結構造であって、
前記足場部材の前記楔部は、楔部本体と該楔部本体の内部空間に挿入されている抜け止め体とを備え、
前記楔部本体は、
それぞれ前記横架材の端部に一部が固着されており、前記横架材の軸方向に交差する上下方向に延びていると共に下端に向かって幅が減少しているテーパ状の一対の楔側面部と、
前記横架材に固着されている側とは反対側で一対の前記楔側面部を連結している楔中間面部と、
一対の前記楔側面部の下端を連結しており前記楔部本体の下端を閉端としている閉端部と、
一対の前記楔側面部の上辺を周縁とする挿通孔部、または、一対の前記楔側面部の上端を連結している上面部に貫設されている挿通孔部と、を有していると共に、
一対の前記楔側面部それぞれにおいて前記楔中間面部とは反対側の辺が、少なくとも前記閉端部の近傍で開端となっており、
前記抜け止め体は、
上端近傍で突出している前記挿通孔部を通過不能な突起部と、
前記楔中間面部に対面する外側面において、前記突起部が設けられた上端部より突出している第一当接部と、
前記外側面と反対側の内側面において、下端より上方で突出している第二当接部と、を有していると共に、
前記突起部から下端までの上下方向の長さが、前記挿通孔部の周縁から前記閉端部までの長さより長いものであり、
前記楔部本体が前記ブラケットに挿入されて、前記抜け止め体が前記楔部本体の内部空間を貫通して下端側が前記閉端部の近傍の前記開端から外方に向かって斜めに延び出していると共に、
前記抜け止め体において、前記外側面の下端近傍が前記楔部本体の前記閉端部の開端縁に当接し、前記第一当接部が前記楔部本体の前記楔中間面部に当接し、且つ、前記第二当接部が前記ブラケットの内周面に当接している
ことを特徴とする足場部材の連結構造。 The scaffold member provided with a wedge portion at at least one end of the horizontal member is a connection structure of a scaffold member connected to a scaffold column provided with a bracket having a U-shaped cross section on the outer peripheral surface,
The wedge part of the scaffold member includes a wedge part main body and a retaining member inserted into the internal space of the wedge part main body,
The wedge body is
A pair of tapered wedges, each partially fixed to the end of the horizontal member, extending in the vertical direction intersecting the axial direction of the horizontal member and decreasing in width toward the lower end Side part,
A wedge intermediate surface portion connecting the pair of wedge side surface portions on the side opposite to the side fixed to the horizontal member;
A closed end portion that connects the lower ends of the pair of wedge side surface portions and has the lower end of the wedge portion main body as a closed end;
And having an insertion hole portion having an upper edge of the pair of wedge side surface portions as a peripheral edge, or an insertion hole portion penetrating in an upper surface portion connecting the upper ends of the pair of wedge side surface portions. ,
In each of the pair of wedge side surface portions, the side opposite to the wedge intermediate surface portion is an open end at least in the vicinity of the closed end portion,
The retaining body is
A protrusion that cannot pass through the insertion hole protruding near the upper end; and
A first abutting portion projecting from an upper end portion provided with the protruding portion on the outer surface facing the wedge intermediate surface portion;
A second abutting portion protruding above the lower end on the inner surface opposite to the outer surface, and
The length in the vertical direction from the protrusion to the lower end is longer than the length from the peripheral edge of the insertion hole to the closed end,
The wedge body is inserted into the bracket, the retaining member penetrates the internal space of the wedge body, and the lower end extends obliquely outward from the open end in the vicinity of the closed end. And
In the retainer, the vicinity of the lower end of the outer surface abuts on the open end edge of the closed end portion of the wedge portion main body, the first abutment portion abuts on the wedge intermediate surface portion of the wedge portion main body, and The connecting structure for a scaffold member, wherein the second contact portion is in contact with the inner peripheral surface of the bracket. 前記抜け止め体は、前記上端部に対して、前記上端部より下方の部分が前記楔中間面部に向かって屈曲しており、その屈曲の角部が前記第一当接部を構成している
ことを特徴とする請求項１に記載の足場部材の連結構造。 The retaining member has a lower portion than the upper end portion bent toward the wedge intermediate surface portion with respect to the upper end portion, and a corner portion of the bend constitutes the first contact portion. The connection structure for a scaffold member according to claim 1. 横架材の少なくとも一方の端部に楔部を備える足場部材であって、
前記楔部は、楔部本体と該楔部本体の内部空間に挿入される抜け止め体とを備え、
前記楔部本体は、
それぞれ前記横架材の端部に一部が固着されており、前記横架材の軸方向に交差する上下方向に延びていると共に下端に向かって幅が減少しているテーパ状の一対の楔側面部と、
前記横架材に固着されている側とは反対側で一対の前記楔側面部を連結している楔中間面部と
一対の前記楔側面部の下端を連結しており前記楔部本体の下端を閉端としている閉端部と、
一対の前記楔側面部の上辺を周縁とする挿通孔部、または、一対の前記楔側面部の上端を連結している上面部に貫設されている挿通孔部と、を有していると共に、
一対の前記楔側面部それぞれにおいて前記楔中間面部とは反対側の辺が、少なくとも前記閉端部の近傍で開端となっており、
前記抜け止め体は、
上端近傍で突出している前記挿通孔部を通過不能な突起部と、
前記楔中間面部に対面する外側面において、前記突起部が設けられた上端部より突出している第一当接部と、
前記外側面と反対側の内側面において、下端より上方で突出している第二当接部と、を有していると共に、
前記突起部から下端までの上下方向の長さが、前記挿通孔部の周縁から前記閉端部までの長さより長いものである
ことを特徴とする足場部材。 A scaffold member provided with a wedge portion at at least one end of the horizontal member,
The wedge portion includes a wedge portion main body and a retaining member inserted into the internal space of the wedge portion main body,
The wedge body is
A pair of tapered wedges, each partially fixed to the end of the horizontal member, extending in the vertical direction intersecting the axial direction of the horizontal member and decreasing in width toward the lower end Side part,
The wedge intermediate surface portion connecting the pair of wedge side surface portions on the side opposite to the side fixed to the horizontal member and the lower ends of the pair of wedge side surface portions are connected, and the lower end of the wedge portion main body is A closed end that is closed; and
And having an insertion hole portion having an upper edge of the pair of wedge side surface portions as a peripheral edge, or an insertion hole portion penetrating in an upper surface portion connecting the upper ends of the pair of wedge side surface portions. ,
In each of the pair of wedge side surface portions, the side opposite to the wedge intermediate surface portion is an open end at least in the vicinity of the closed end portion,
The retaining body is
A protrusion that cannot pass through the insertion hole protruding near the upper end; and
A first abutting portion projecting from an upper end portion provided with the protruding portion on the outer surface facing the wedge intermediate surface portion;
A second abutting portion protruding above the lower end on the inner surface opposite to the outer surface, and
The scaffold member, wherein a length in a vertical direction from the protrusion to the lower end is longer than a length from a peripheral edge of the insertion hole to the closed end.
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Publication number Priority date Publication date Assignee Title
GB1386238A (en) * 1971-05-28 1975-03-05 Kwikform Ltd Builders scaffolding
JP3747187B2 (en) * 2002-06-11 2006-02-22 文雄 藤木 Scaffolding member and scaffolding device
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