JP7316122B2

JP7316122B2 - work scaffold plank

Info

Publication number: JP7316122B2
Application number: JP2019126738A
Authority: JP
Inventors: 一雅 ▲高▼宮; 克之星野; 凌吾磯部
Original assignee: Toru Noguchi
Current assignee: Toru Noguchi
Priority date: 2019-07-08
Filing date: 2019-07-08
Publication date: 2023-07-27
Anticipated expiration: 2039-07-08
Also published as: JP2021011747A

Description

本発明は、建築作業現場や土木作業現場等の作業現場で仮設足場を構築する際に、この仮設足場の構成要素として、作業者が乗って作業を行ったり歩くために用いられる作業足場板に関する。 The present invention relates to a work scaffolding board used as a constituent element of a temporary scaffolding at a work site such as a construction site or a civil engineering work site for workers to work or walk on. .

建築作業現場や土木作業現場等の作業現場で仮設足場を構築する際には、作業者が乗って作業を行ったり歩くための作業足場板が仮設足場の構成要素として用いられる。下記の特許文献１に示されている作業足場板は、長手方向の寸法がこの長手方向と直交する幅方向の寸法よりも大きくなっている本体と、長手方向における本体の両側に配置された端部材とを備えて構成されており、また、それぞれの端部材の上面には、凸部による第１位置決め部が設けられているとともに、それぞれの端部材の下面には凸部による第２位置決め部が設けられ、第１位置決め部と第２位置決め部とについての長手方向の位置が、上下に積み重なられた複数枚の作業足場板をこれらの第１位置決め部と第２位置決め部との当接によって長手方向に位置決めすることができる位置となっている。このため、作業現場等において、複数枚の作業足場板を、長手方向に位置決めして上下に積み重ねることができる。 BACKGROUND ART When constructing a temporary scaffold at a work site such as a construction site or a civil engineering work site, a work scaffolding board is used as a constituent element of the temporary scaffold for workers to work or walk on. The work scaffolding board shown in Patent Document 1 below includes a body having a longitudinal dimension greater than a width dimension orthogonal to the longitudinal direction, and ends disposed on both sides of the body in the longitudinal direction. The upper surface of each end member is provided with a first positioning portion by a convex portion, and the lower surface of each end member is provided with a second positioning portion by a convex portion. is provided, and the longitudinal positions of the first positioning part and the second positioning part are such that the plurality of work scaffolding boards stacked up and down are abutted between the first positioning part and the second positioning part. It is positioned so that it can be positioned in the longitudinal direction by contact. Therefore, at a work site or the like, a plurality of work scaffolding boards can be positioned in the longitudinal direction and vertically stacked.

特開２００９－４１３２８号公報JP-A-2009-41328

上述の作業足場板では、端部材にエンボス加工を行うことにより、それぞれの端部材に凸部となっている第１位置決め部と第２位置決め部が設けられており、作業足場板全体の製造作業の簡単化や製造コストの低減を図るためには、これらの位置決め部が設けられた端部材を容易に製造できるようにする工夫が求められる。 In the above-described work scaffold board, the end members are embossed to provide the first positioning part and the second positioning part, which are convex portions, on each end member. In order to simplify the process and reduce the manufacturing cost, it is necessary to devise ways to easily manufacture the end member provided with these positioning portions.

本発明の目的は、位置決め部が設けられた端部材を容易に製造できるようになる作業足場板を提供するところにある。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a work scaffolding board that enables easy manufacture of end members provided with positioning portions.

本発明に係る作業足場板は、長手方向の寸法がこの長手方向と直交する幅方向の寸法よりも大きくなっている本体と、前記長手方向における前記本体の両側に配置された端部材とを備えて構成された作業足場板であって、それぞれの前記端部材の上面に第１位置決め部が設けられているとともに、それぞれの前記端部材の下面に第２位置決め部が設けられ、前記第１位置決め部と前記第２位置決め部とについての前記長手方向の位置が、上下に積み重なられた複数枚がこれらの第１位置決め部と第２位置決め部とにより前記長手方向に位置決めされる位置となっている作業足場板において、前記第１位置決め部は、同じ形状で前記端部材の前記幅方向の全長に渡って連続して形成されたものとなっているとともに、前記第２位置決め部も、同じ形状で前記端部材の前記幅方向の全長に渡って連続して形成されたものとなっていることを特徴とするものである。 A work scaffolding board according to the present invention comprises a body having a longitudinal dimension larger than a width dimension orthogonal to the longitudinal direction, and end members disposed on both sides of the body in the longitudinal direction. wherein a first positioning portion is provided on the upper surface of each of the end members, a second positioning portion is provided on the lower surface of each of the end members, and the first positioning The positions in the longitudinal direction of the portion and the second positioning portion are positions in which the plurality of vertically stacked sheets are positioned in the longitudinal direction by the first positioning portion and the second positioning portion. In the work scaffold board, the first positioning part has the same shape and is formed continuously over the entire length of the width direction of the end member, and the second positioning part also has the same shape The shape is characterized in that it is formed continuously over the entire length of the width direction of the end member.

このように本発明に係る作業足場板では、端部材の上面に設けられている第１位置決め部は、同じ形状で端部材の幅方向の全長に渡って連続して形成されたものとなっており、端部材の下面に設けられている第２位置決め部も、同じ形状で端部材の幅方向の全長に渡って連続して形成されたものとなっているため、例えば、アルミ又はアルミ合金の押し出し成形又は引き抜き成形により、第１位置決め部と第２位置決め部とが設けられている長寸法の端部材素材を製造した後に、この端部材素材を所定の寸法で切断することにより、第１位置決め部と第２位置決め部とが設けられた端部材を容易に多数製造することができるようになり、これにより、作業足場板全体の製造作業の簡単化と製造コストの低減を図ることができる。 As described above, in the work scaffolding board according to the present invention, the first positioning portion provided on the upper surface of the end member has the same shape and is continuously formed over the entire length of the end member in the width direction. The second positioning portion provided on the lower surface of the end member also has the same shape and is continuously formed over the entire length of the width direction of the end member. After manufacturing a long end member material provided with a first positioning portion and a second positioning portion by extrusion molding or pultrusion, the end member material is cut to a predetermined size to obtain the first positioning. A large number of end members provided with the portion and the second positioning portion can be easily manufactured, thereby simplifying the manufacturing work of the entire work scaffold board and reducing the manufacturing cost.

また、第１位置決め部と第２位置決め部とが設けられた端部材を製造するためには、端部材を板金製とし、この板金にプレス加工を行うことにより、端部材に第１位置決め部と第２位置決め部を設けてもよく、このようにして第１位置決め部と第２位置決め部とが設けられた端部材を製造する場合でも、端部材の上面に設けられている第１位置決め部は、同じ形状で端部材の幅方向の全長に渡って連続して形成されたものとなっていて、端部材の下面に設けられている第２位置決め部も、同じ形状で端部材の幅方向の全長に渡って連続して形成されたものとなっているため、これらの位置決め部を形成するために行うプレス加工のための金型を容易に製造することができ、これにより、第１位置決め部と第２位置決め部とが設けられた端部材も容易に製造することができ、作業足場板全体の製造作業の簡単化と製造コストの低減を図ることができる。 In addition, in order to manufacture the end member provided with the first positioning portion and the second positioning portion, the end member is made of sheet metal, and the sheet metal is subjected to press working so that the end member is provided with the first positioning portion and the second positioning portion. A second positioning portion may be provided, and even when manufacturing an end member provided with the first positioning portion and the second positioning portion in this way, the first positioning portion provided on the upper surface of the end member is , the same shape and formed continuously over the entire length of the end member in the width direction, and the second positioning portion provided on the lower surface of the end member Since it is formed continuously over the entire length, it is possible to easily manufacture a mold for press working to form these positioning portions. The end member provided with the second positioning portion and the second positioning portion can be easily manufactured, and the manufacturing work of the entire work scaffolding board can be simplified and the manufacturing cost can be reduced.

以上の本発明において、複数枚の作業足場板が上下に積み重なられたときに、下側の作業足場板の第１位置決め部と上側の作業足場板の第２位置決め部とにより、これらの作業足場板が前記長手方向に位置決めされるようにするためには、第１位置決め部と第２位置決め部の両方を突部とし、これらの突部が前記長手方向にずれて互いに当接することにより、作業足場板同士が前記長手方向に位置決めされるようにしてもよく、あるいは、第１位置決め部と第２位置決め部のうち、一方の位置決め部を突出した突部とし、他方の位置決め部を窪んだ窪み部とし、突部が窪み部に嵌合することにより、作業足場板同士が前記長手方向に位置決めされるようにしてもよい。 In the present invention as described above, when a plurality of work scaffolding boards are stacked vertically, the first positioning part of the lower work scaffolding board and the second positioning part of the upper work scaffolding board allow these work scaffolding boards to In order to position the work scaffold board in the longitudinal direction, both the first positioning part and the second positioning part are projections, and these projections are displaced in the longitudinal direction and come into contact with each other. Alternatively, the work scaffolding boards may be positioned in the longitudinal direction, or one of the first positioning part and the second positioning part may be a projecting protrusion and the other positioning part may be recessed. The work scaffolding boards may be positioned in the longitudinal direction by forming a hollow portion and fitting the projection into the hollow portion.

後者のように、第１位置決め部と第２位置決め部のうち、一方の位置決め部を突出した突部とし、他方の位置決め部を窪んだ窪み部とし、突部が窪み部に嵌合することにより、作業足場板同士が前記長手方向に位置決めされるようにする場合には、突部を角形状に突出した角形状突部とし、窪み部を角形状に窪んだ角形状窪み部としてもよく、あるいは、突部を湾曲状に突出している湾曲状突部とし、窪み部を湾曲状に窪んでいる湾曲状窪み部としてもよい。 As in the latter case, one of the first positioning portion and the second positioning portion is a projecting protrusion, the other positioning portion is a recessed portion, and the protrusion is fitted into the recessed portion. , when the work scaffolding boards are to be positioned in the longitudinal direction, the protrusion may be a square protrusion protruding in a square shape, and the recess may be a square recess in a square shape, Alternatively, the protrusion may be a curved protrusion that protrudes in a curved shape, and the recess may be a curved recess that is recessed in a curved shape.

突部を湾曲状に突出している湾曲状突部とし、窪み部を湾曲状に窪んでいる湾曲状窪み部とすると、複数枚の作業足場板を上下に積み重ねて前記長手方向に位置決めする際に、突部の湾曲状となっている形状と、窪み部の湾曲状となっている形状とによる案内作用により、突部を窪み部に容易に嵌合させることができる。 If the projecting portion is a curved projecting portion that projects in a curved shape and the recessed portion is a curved recessed portion that is recessed in a curved shape, when a plurality of work scaffolding boards are vertically stacked and positioned in the longitudinal direction. The curved shape of the projection and the curved shape of the recess facilitate the fitting of the projection into the recess.

また、本発明に係る作業足場板において、それぞれの端部材の下面に、下方への突出量を有する複数個の突起部を前記長手方向の間隔をあけて設け、一方が上下逆となって２枚の作業足場板が上下に積み重ねられときに、複数個の突起部同士が前記長手方向にずれた噛み合い状態となることにより、２枚の作業足場板が前記長手方向に位置決め状態となるようにしてもよい。 Further, in the work scaffolding board according to the present invention, a plurality of projecting portions having a downward projecting amount are provided on the lower surface of each end member at intervals in the longitudinal direction, one of which is upside down and two projecting portions are provided. When the work scaffolding boards are stacked vertically, the plurality of protrusions are displaced in the longitudinal direction and engaged with each other so that the two work scaffolding boards are positioned in the longitudinal direction. may

これによると、複数枚の作業足場板を上下に積み重ねるときに、最下段の作業足場板の上下を逆にすることにより、最下段の作業足場板と下から２段目の作業足場板とを、複数個の突起部同士が前記長手方向にずれた噛み合い状態となることにより、前記長手方向に位置決め状態とすることができる。 According to this, when a plurality of work scaffolding boards are stacked vertically, by turning the bottom work scaffolding board upside down, the lowest work scaffolding board and the second work scaffolding board from the bottom can be separated. A positioning state can be achieved in the longitudinal direction by engaging the plurality of protrusions with each other in a displaced manner in the longitudinal direction.

なお、複数個の突起部についての前記長手方向の間隔を、これらの突起部についての前記長手方向の寸法と同じ又は略同じとしてもよく、あるいは、複数個の突起部の間隔を、これらの突起部についての前記長手方向の寸法よりも大きくしてもよい。 It should be noted that the longitudinal spacing of the plurality of protrusions may be the same or substantially the same as the longitudinal dimension of these protrusions, or the spacing of the plurality of protrusions may be It may be larger than said longitudinal dimension for the section.

複数個の突起部についての間隔を、これらの突起部についての前記長手方向の寸法よりも大きくすると、最下段の作業足場板と下から２段目の作業足場板とを前記長手方向に位置決め状態とするために、複数個の突起部同士を前記長手方向にずれた噛み合い状態とする作業を容易に行うことができるようになる。 When the distance between the plurality of projections is made larger than the longitudinal dimension of these projections, the lowermost work scaffolding board and the second work scaffolding board from the bottom are positioned in the longitudinal direction. Therefore, it is possible to easily carry out the work of bringing the plurality of protrusions into the meshing state in which they are displaced in the longitudinal direction.

また、本発明に係る作業足場板において、それぞれの端部材の上部と下部に、作業足場板の本体側へ延出した上側延出部と下側延出部とを設け、上側延出部の上面に前記第１位置決め部を設けるとともに、下側延出部の下面に前記第２位置決め部を設け、また、この下側延出部の少なくとも一部に、上下の厚さ寸法が上側延出部よりも大きくなった厚肉部を設け、この厚肉部の少なくとも一部を作業足場板の本体の下面から下方へ突出させ、この突出した部分を作業足場板の本体の下面に溶接により結合するようにしてもよい。 Further, in the work scaffolding board according to the present invention, an upper extension part and a lower extension part extending toward the main body side of the work scaffolding board are provided at the upper part and the lower part of each of the end members, and the upper extension part The first positioning portion is provided on the upper surface, and the second positioning portion is provided on the lower surface of the lower extension portion. At least a part of the thick part is projected downward from the lower surface of the main body of the work scaffold board, and the projected part is welded to the lower surface of the main body of the work scaffold board. You may make it

これによると、端部材は、この端部材に設けられている厚肉部において、作業足場板の本体の下面に溶接で結合されるため、端部材を作業足場板の本体に溶接による結合強度を大きくして結合できるようになる。 According to this, the end member is welded to the lower surface of the main body of the work scaffold board at the thick-walled portion provided in the end member, so that the strength of the joint between the end member and the main body of the work scaffold board is increased by welding. It can be enlarged and combined.

さらに、本発明に係る作業足場板が、それぞれの端部材に、前記長手方向における作業足場板の本体とは反対側において、端部隙間カバーが連結されるものとなっている場合には、これらの端部隙間カバーに、下方へ延出している係止部を設けるとともに、端部材には、上向きに開口している受け部を設け、この受け部に係止部が上から挿入されることによりこの係止部が受け部に係止されるようにしてもよい。 Furthermore, if the work platform according to the invention is such that an end gap cover is connected to each end member on the opposite side of the work platform in said longitudinal direction from the main body of the work platform, these The end gap cover is provided with a locking portion extending downward, and the end member is provided with a receiving portion opening upward, into which the locking portion is inserted from above. The locking portion may be locked to the receiving portion by

これによると、それぞれの端部材に、前記長手方向における作業足場板の本体とは反対側において、端部隙間カバーを連結する際に、端部材の受け部に端部隙間カバーの係止部を挿入、係止するための作業を、端部隙間カバーを端部材に対して上から降ろすという簡単な作業だけを行うことにより容易に実施することができる。 According to this, when the end gap cover is connected to each of the end members on the side opposite to the main body of the work scaffold board in the longitudinal direction, the locking portion of the end gap cover is attached to the receiving portion of the end member. The work for inserting and locking can be easily carried out by performing only a simple work of lowering the end gap cover from above onto the end member.

そして、このように端部材に、前記長手方向における作業足場板の本体とは反対側において、端部隙間カバーを連結するために、端部材の受け部に端部隙間カバーの係止部を挿入、係止する構造とする場合には、端部材の受け部を、この端部材に設けられている立壁部に形成し、端部隙間カバーには、受け部と上下方向にずれた箇所において、立壁部と面接触する後壁部を設け、立壁部と後壁部とをこれらの立壁部と後壁部を貫通する貫通部を有する結合具で結合することにより、端部材と端部隙間カバーとを連結するようにしてもよい。 Then, in order to connect the end gap cover to the end member on the side opposite to the main body of the work platform board in the longitudinal direction in this way, the locking part of the end gap cover is inserted into the receiving part of the end member. In the case of a locking structure, the receiving portion of the end member is formed on the standing wall portion provided on the end member, and the end gap cover is provided with a portion vertically displaced from the receiving portion. The end member and the end gap cover are provided by providing a rear wall portion that is in surface contact with the standing wall portion, and connecting the standing wall portion and the rear wall portion with a connector having a penetrating portion penetrating the standing wall portion and the rear wall portion. and may be connected.

また、端部材の立壁部には、上下が逆となったときの作業足場板の本体に溜まった水を端部隙間カバー側へ流出させて抜き取るための水抜き孔を設けてもよい。 In addition, the upright wall portion of the end member may be provided with a drain hole for draining water accumulated in the main body of the work scaffold board when the scaffold board is turned upside down to the side of the end gap cover.

これによると、最下段の作業足場板だけを上下逆にして複数枚の作業足場板を上下に積み重ねたときに、最下段の作業足場板の本体に雨水等の水が溜まっても、この水を端部材の立壁部に設けた水抜き孔から端部隙間カバー側へ流出させて抜き取ることができるようになる。 According to this, when a plurality of work scaffolding boards are stacked upside down with only the bottom work scaffolding board upside down, even if water such as rainwater accumulates in the main body of the work scaffolding board at the bottom level, this water can be drained from the drain hole provided in the standing wall of the end member toward the end gap cover.

以上説明した本発明に係る作業足場板は、任意の用途で構築される仮設足場に用いることができ、このため、本発明に係る作業足場板が構成要素として用いられる仮設足場は、建築作業のための仮設足場でもよく、解体作業のための仮設足場でもよく、塗装作業のための仮設足場でもよく、さらには、土木作業等のための仮設足場でもよい。 The work scaffolding board according to the present invention described above can be used for a temporary scaffold constructed for any purpose. It may be a temporary scaffold for construction work, a temporary scaffold for demolition work, a temporary scaffold for painting work, or a temporary scaffold for civil engineering work or the like.

本発明によると、位置決め部が設けられた端部材を容易に製造できるようになるという効果を得られる。 ADVANTAGE OF THE INVENTION According to this invention, the effect that it becomes possible to manufacture easily the end member provided with the positioning part is acquired.

図１は、本発明の一実施形態に係る作業足場板が用いられて構築された仮設足場を示す全体斜視図である。FIG. 1 is an overall perspective view showing a temporary scaffold constructed using a work scaffold board according to one embodiment of the present invention. 図２は、作業足場板の平面図である。FIG. 2 is a plan view of a work scaffold board. 図３は、作業足場板の表面側斜視図である。FIG. 3 is a front side perspective view of the work scaffold board. 図４は、作業足場板の裏面側斜視図である。FIG. 4 is a back side perspective view of the work scaffold board. 図５は、作業足場板の本体を分解して示した図であって、（Ａ）は平面図、（Ｂ）は側面図である。FIG. 5 is an exploded view of the main body of the work scaffold board, where (A) is a plan view and (B) is a side view. 図６は、端部材の斜視図である。FIG. 6 is a perspective view of the end member. 図７は、作業足場板の本体と端部材との結合構造を示す平面図である。FIG. 7 is a plan view showing a connecting structure between the main body of the work scaffold board and the end member. 図８は、作業足場板の本体と端部材との結合構造を示す裏面図である。FIG. 8 is a back view showing the joint structure between the main body and the end member of the work scaffold board. 図９は、端部材と端部隙間カバーとの連結構造を示す縦断面図である。FIG. 9 is a vertical cross-sectional view showing the connection structure between the end member and the end gap cover. 図１０は、多数枚の作業足場板を上下に積み重ねた状態を示す正面図である。FIG. 10 is a front view showing a state in which a large number of work scaffolding boards are vertically stacked. 図１１は、図１０の一部を拡大して示した図であって、作業足場板の本体やフック部材等を二点鎖線で示し、端部材と端部隙間カバーを実線で示した図である。FIG. 11 is an enlarged view of a part of FIG. 10, in which the main body, hook members, etc. of the working scaffolding board are indicated by two-dot chain lines, and the end members and end gap covers are indicated by solid lines. be.

以下に本発明を実施するための形態を図面に基づいて説明する。図１には、本実施形態に係る作業足場板が用いられて構築された仮設足場１が示されており、この仮設足場１は、建物の建築作業現場で構築されたものであって、並設された複数の建枠２と、これらの建枠２同士の間に水平に架け渡された作業足場板１０と、建枠２同士の間に斜めに架け渡されたブレース３と、建枠２同士の間に水平に架け渡された手摺り４とを含んで構成されている。手摺り４は、仮設足場１における建物とは反対側の背面側に配設されており、左右方向を長手方向とする幅木５は、この背面側となっている作業足場板１０の側端部に、作業足場板１０の長さ方向に沿って取り付けられる。これにより、作業足場板１０の上に乗って作業等を行う作業者や、作業足場板１０の上に載せられている工具類等が仮設足場１の背面側から落下することが、幅木５によって防止される。 A mode for carrying out the present invention will be described below with reference to the drawings. FIG. 1 shows a temporary scaffolding 1 constructed using the work scaffolding board according to the present embodiment. A plurality of construction frames 2 provided, a work scaffold board 10 horizontally spanned between these construction frames 2, a brace 3 spanned diagonally between the construction frames 2, and a construction frame. It is configured including a handrail 4 horizontally bridged between the two. The handrail 4 is arranged on the back side of the temporary scaffolding 1 opposite to the building, and the baseboard 5 whose longitudinal direction is the horizontal direction is the side end of the work scaffold board 10 on the back side. , along the length of the work scaffold plank 10. As a result, it is possible to prevent a worker who is standing on the working scaffolding board 10 and the tools and the like placed on the working scaffolding board 10 from falling from the back side of the temporary scaffolding 1. prevented by

図２には、本発明の一実施形態に係る作業足場板１０の平面図が示され、図３は、作業足場板１０の表面側斜視図であり、図４は、作業足場板１０の裏面側斜視図である。作業足場板１０は、本体１１と、この本体１１の両側に配置された２個の端部材１２とを備えて構成されたものとなっており、本体１１についてのこれらの端部材１２が配置されている方向は、作業足場板１０の長手方向であり、この長手方向における本体１１の寸法は、長手方向と直交する幅方向における本体１１の寸法よりも大きくなっている。それぞれの端部材１２には、長手方向における本体１１とは反対側において、端部隙間カバー１３が連結されており、このため、本実施形態に係る作業足場板１０は、本体１１と、この本体１１の長手方向の両側に配置された２個の端部材１２と、これらの端部材１２に対して本体１１とは長手方向の反対側に配置された２個の端部隙間カバー１３とにより構成されたものとなっている。 FIG. 2 shows a plan view of a work scaffold board 10 according to one embodiment of the present invention, FIG. 3 is a front side perspective view of the work scaffold board 10, and FIG. 4 is a back side of the work scaffold board 10. Fig. 3 is a side perspective view; The work scaffolding board 10 comprises a main body 11 and two end members 12 arranged on both sides of the main body 11, and these end members 12 of the main body 11 are arranged. This direction is the longitudinal direction of the work scaffolding board 10, and the dimension of the main body 11 in this longitudinal direction is larger than the dimension of the main body 11 in the width direction orthogonal to the longitudinal direction. An end gap cover 13 is connected to each of the end members 12 on the side opposite to the main body 11 in the longitudinal direction. 11 and two end gap covers 13 arranged on opposite sides of the main body 11 in the longitudinal direction with respect to the end members 12. It is what was done.

図５には、本体１１のみが示されており、図５（Ａ）は、この本体１１を分解して示した平面図であって、図５（Ｂ）は、本体１１を分解して示した側面図である。本体１１は、形状が本体１１の幅方向中央部を中心に幅方向に対称形状となっている２個の本体半部材１４を幅方向に結合することにより形成されるものであり、それぞれの本体半部材１４は、滑り止め用の円形突出部１４Ａが規則的に多数設けられた表面部１４Ｂと、この表面部１４Ｂの幅方向両側から下方へ延びている第１側壁部１４Ｃ及び第２側壁部１４Ｄと、これらの第１側壁部１４Ｃと第２側壁部１４Ｄの間において、表面部１４Ｂから第１側壁部１４Ｃ及び第２側壁部１４Ｄと平行に下方へ延びているリブ部１４Ｅとからなるものとなっている。また、本体半部材１４は、アルミ又はアルミ合金の押し出し成形品又は引き抜き成形品であり、長寸のアルミ又はアルミ合金の押し出し成形品素材又は引き抜き成形品素材を製造した後に、この素材を前記長手方向と同じ方向の所定寸法の間隔をあけて切断することにより、本体半部材１４のための多数の原形部材を製造し、次いで、これらの原形部材の表面部１４Ｂに滑り止め用の円形突出部１４Ａを形成するためのプレス作業や、原形部材における第１側壁部１４Ｃの長手方向の両端部を残して、原形部材における表面部１４Ｂと第２側壁部１４Ｄとリブ部１４Ｅとについての長手方向の両端部を少し切断し、この切断作業により、端部材１２を挿入配置するための切欠部１５を形成するための作業を行うことにより、多数の本体半部材１４が製造される。 5 shows only the main body 11, FIG. 5(A) is an exploded plan view of the main body 11, and FIG. 5(B) is an exploded view of the main body 11. As shown in FIG. is a side view. The main body 11 is formed by joining together in the width direction two main body half members 14 whose shape is symmetrical in the width direction with respect to the center in the width direction of the main body 11 . The half member 14 has a surface portion 14B on which a large number of anti-slip circular protrusions 14A are regularly provided, and first and second side wall portions 14C and 14C extending downward from both sides of the surface portion 14B in the width direction. 14D and a rib portion 14E extending downward from the surface portion 14B between the first side wall portion 14C and the second side wall portion 14D in parallel with the first side wall portion 14C and the second side wall portion 14D. It has become. The body half member 14 is an aluminum or aluminum alloy extrusion or pultruded product. After manufacturing a long aluminum or aluminum alloy extrusion or pultruded product, this material A number of preforms for the body halves 14 are produced by cutting at intervals of predetermined size in the same direction as the direction, and then the surfaces 14B of these preforms are provided with non-slip circular projections. 14A, and the longitudinal direction of the surface portion 14B, the second side wall portion 14D, and the rib portion 14E of the original member, leaving both longitudinal ends of the first side wall portion 14C of the original member. A large number of body half members 14 are manufactured by cutting both ends a little and forming notches 15 for inserting and arranging the end members 12 by this cutting operation.

図５に示されているように、２個の本体半部材１４を、それぞれの第１側壁部１４Ｃを外側にして幅方向に向い合せ、少しの隙間をあけて幅方向に対向させたこれらの本体半部材１４の第１側壁部１４Ｃと第２側壁部１４Ｄとリブ部１４Ｅとに、図４及び図５（Ｂ）で示されている細幅板状の横架部材１６を架け渡し、図４に示されているように、長手方向に２本配置されるこの横架部材１６をそれぞれの本体半部材１４の第１側壁部１４Ｃと第２側壁部１４Ｄとリブ部１４Ｅとに溶接又はリベット等の結合具で結合することにより、作業足場板１０の本体１１が出来上がる。 As shown in FIG. 5, the two main body half members 14 are opposed in the width direction with the respective first side wall portions 14C facing outward, and are opposed in the width direction with a small gap. A narrow plate-like horizontal member 16 shown in FIG. 4 and FIG. 4, the two longitudinally arranged transverse members 16 are welded or riveted to the first side wall portion 14C, the second side wall portion 14D and the rib portion 14E of the respective body half members 14. The main body 11 of the work scaffold board 10 is completed by connecting with a connector such as.

図３に示されているように、本体１１の幅方向の外側に配置されている第１側壁部１４Ｃには、下向きに開口した凹部１７Ａが形成されているフック部材１７がボルト及びナットによる取付具１８で取り付けられ、このフック部材１７は、本体１１の幅方向の両方の外側に２本設けられている第１側壁部１４Ｃのそれぞれの長手方向の両側の端部において、図２に示されているように、合計４個設けられている。これらのフック部材１７は、図１に示されているように、建枠２同士の間に作業足場板１０を架け渡す際に、それぞれの建枠２に設けられている水平部材２Ａに上から凹部１７Ａが嵌合されることにより、水平部材２Ａに係止され、これにより、作業足場板１０が建枠２同士の間に水平に架け渡される。 As shown in FIG. 3, a hook member 17 having a downwardly opening concave portion 17A is formed on a first side wall portion 14C arranged on the outer side in the width direction of the main body 11, and is attached by a bolt and a nut. The hook members 17 are attached at both ends in the longitudinal direction of each of the two first side wall portions 14C provided on both sides of the main body 11 in the width direction, as shown in FIG. As shown, a total of four are provided. These hook members 17, as shown in FIG. By fitting the concave portion 17A, it is locked to the horizontal member 2A, whereby the work scaffolding board 10 is horizontally bridged between the construction frames 2. As shown in FIG.

なお、図３に示されているように、それぞれのフック部材１７の側面には、遊動部材１９が配置されており、この遊動部材１９には、フック部材１７に一方の端部が結合された２本のピン１９Ｂが挿入されている湾曲状の長孔１９Ａが形成されており、これらのピン１９Ｂの他方の端部に形成されたフランジ部によって遊動部材１９はピン１９Ｂから抜け止めされている。遊動部材１９は、ピン１９Ｂと湾曲状の長孔１９Ａとの案内作用により、フック部材１７に対して遊動可能となっているため、遊動部材１９を上向きに遊動させて、フック部材１７に設けられている凹部１７Ａの開口部の全部を開口させているときに、凹部１７Ａが水平部材２Ａに上から嵌合され、この後に、遊動部材１９を下向きに遊動させて、凹部１７Ａの開口部の一部を遊動部材１９で塞ぐことにより、水平部材２Ａに対してフック部材１７がロックされる。 In addition, as shown in FIG. 3, a floating member 19 is arranged on the side surface of each hook member 17, and one end of the floating member 19 is connected to the hook member 17. A curved elongated hole 19A is formed into which two pins 19B are inserted, and the floating member 19 is prevented from slipping off from the pin 19B by a flange portion formed at the other end of the pin 19B. . The floating member 19 is movable relative to the hook member 17 by the guiding action of the pin 19B and the curved long hole 19A. When the entire opening of the recessed portion 17A is opened, the recessed portion 17A is fitted to the horizontal member 2A from above, and then the floating member 19 is moved downward to partially open the opening of the recessed portion 17A. By closing the portion with the floating member 19, the hook member 17 is locked with respect to the horizontal member 2A.

また、図２から分かるように、作業足場板１０の四隅に４個設けられているフック部材１７のうち、作業足場板１０の長手方向の一方の端部に配置されている２個のフック部材１７は、これらのフック部材１７が第１側壁部１４Ｃの内側側面と外側側面とに分かれて取り付けられることにより、作業足場板１０の幅方向に少しずれた位置において、第１側壁部１４Ｃに取り付けられ、作業足場板１０の長手方向の他方の端部に配置されている２個のフック部材１７も、これらのフック部材１７が第１側壁部１４Ｃの内側側面と外側側面とに分かれて取り付けられることにより、作業足場板１０の幅方向に少しずれた位置において、第１側壁部１４Ｃに取り付けられている。また、作業足場板１０の幅方向の一方の端部に配置されている２個のフック部材１７の配置位置は、これらのフック部材１７が取り付けられている第１側壁部１４Ｃの面が内側と外側の側面に分かれていることにより、作業足場板１０の幅方向に少しずれており、作業足場板１０の幅方向の他方の端部に配置されている２個のフック部材１７の配置位置も、これらのフック部材１７が取り付けられている第１側壁部１４Ｃの面が内側と外側の側面に分かれていることにより、作業足場板１０の幅方向に少しずれている。これにより、図１に示されているように、２枚の作業足場板１０が、これらの作業足場板１０の長手方向において、直列状態で配置されても、これらの作業足場板１０に設けられているフック部材１７同士が幅方向に干渉することが回避される。 Further, as can be seen from FIG. 2, among the four hook members 17 provided at the four corners of the work scaffold board 10, two hook members arranged at one end in the longitudinal direction of the work scaffold board 10 17 are attached to the first side wall portion 14C at positions slightly displaced in the width direction of the work scaffold board 10 by attaching the hook members 17 separately to the inner side surface and the outer side surface of the first side wall portion 14C. The two hook members 17 arranged at the other end in the longitudinal direction of the work scaffolding board 10 are also attached separately to the inner side surface and the outer side surface of the first side wall portion 14C. As a result, it is attached to the first side wall portion 14C at a position slightly shifted in the width direction of the work scaffolding board 10 . The two hook members 17 arranged at one end in the width direction of the work scaffolding board 10 are arranged such that the surface of the first side wall portion 14C to which these hook members 17 are attached faces the inside. The two hook members 17 arranged at the other end in the width direction of the work scaffolding board 10 are also slightly displaced in the width direction of the work scaffolding board 10 by being divided into the outer side surfaces. Since the surface of the first side wall portion 14C to which these hook members 17 are attached is divided into inner and outer side surfaces, the work scaffolding board 10 is slightly shifted in the width direction. As a result, as shown in FIG. 1, even if the two work scaffolding boards 10 are arranged in series in the longitudinal direction of these work scaffolding boards 10, the work scaffolding boards 10 are provided with the same. Interference in the width direction between the hook members 17 that are in contact with each other is avoided.

なお、図５（Ｂ）に示されているように、第１側壁部１４Ｃの上端部と下端部には、この第１側壁部１４Ｃから幅方向両側へ突出したフランジ部１４Ｆ，１４Ｇが設けられているため、これらのフランジ部１４Ｆ，１４Ｇによりフック部材１７は上下に位置決めされて第１側壁部１４Ｃに配置されている。フランジ部１４Ｆ，１４Ｇのうち、上側のフランジ部１４Ｆは、前述した表面部１４Ｂと連続している。また、図５（Ｂ）に示されているように、第２側壁部１４Ｄの下端部には、この第２側壁部１４Ｄから幅方向内側へ突出したフランジ部１４Ｈが設けられているとともに、リブ部１４Ｅの下端部には、リブ部１４Ｅから幅方向両側へ突出したフランジ部１４Ｉが設けられている。 As shown in FIG. 5B, flange portions 14F and 14G protruding from the first side wall portion 14C to both sides in the width direction are provided at the upper end portion and the lower end portion of the first side wall portion 14C. Therefore, the hook member 17 is vertically positioned by these flange portions 14F and 14G and arranged on the first side wall portion 14C. Of the flange portions 14F and 14G, the upper flange portion 14F is continuous with the surface portion 14B described above. Further, as shown in FIG. 5B, a flange portion 14H protruding inward in the width direction from the second side wall portion 14D is provided at the lower end portion of the second side wall portion 14D. A flange portion 14I projecting from the rib portion 14E to both sides in the width direction is provided at the lower end portion of the portion 14E.

図６は、前述した端部材１２の全体を示す斜視図であり、図９には、端部材１２の縦断面図が示され、この図９には、端部材１２と、前述した端部隙間カバー１３との連結構造も示されている。端部材１２は、前述した本体半部材１４と同様に、アルミ又はアルミ合金の押し出し成形品又は引き抜き成形品であり、長寸のアルミ又はアルミ合金の押し出し成形品素材又は引き抜き成形品素材を製造した後に、この素材を前記幅方向と同じ方向の所定寸法の間隔をあけて切断することにより、端部材１２のための多数の原形部材を製造し、次いで、これらの原形部材に、図６で示されている貫通孔２０Ａを形成する加工を行うことより、多数の端部材１２が製造されている。このため、端部材１２は、図９で示されている縦断面形状が作業足場板１０の幅方向の全長に渡って連続しているものとなっている。 FIG. 6 is a perspective view showing the entire end member 12 described above, and FIG. 9 shows a longitudinal sectional view of the end member 12. FIG. 9 shows the end member 12 and the end gap described above. A connecting structure with the cover 13 is also shown. The end member 12 is an aluminum or aluminum alloy extrusion or pultruded product similar to the body half member 14 described above, and is manufactured from a long aluminum or aluminum alloy extrusion or pultruded product. Afterwards, by cutting this material at intervals of predetermined dimensions in the same direction as the width direction, a number of original members for the end members 12 are produced, and these original members are then attached to the original members as shown in FIG. A large number of end members 12 are manufactured by performing processing for forming the through holes 20A. For this reason, the end member 12 has the vertical cross-sectional shape shown in FIG.

端部材１２は、図９に示されているように、上述の貫通孔２０Ａが設けられている立壁部２０と、この立壁部２０の上部から本体１１側へ延出している上側延出部２１と、立壁部２０の下部から本体１１側へ延出している下側延出部２２とからなる。上側延出部２１には、立壁部２０と近接した箇所において、端部材１２の上面に設けられた第１位置決め部となっていて、上方へ突出している突部２３が設けられ、この突部２３は、湾曲状に上方へ突出している湾曲状突部である。また、上側延出部２１には、突部２３から前記長手方向に離れた箇所において、上方へ突出している２個の角形状の突出部２４，２５が設けられている。 As shown in FIG. 9, the end member 12 includes an upright wall portion 20 provided with the above-described through hole 20A, and an upper extension portion 21 extending from the upper portion of the upright wall portion 20 toward the main body 11 side. and a lower extending portion 22 extending from the lower portion of the standing wall portion 20 toward the main body 11 side. The upper extending portion 21 is provided with a protrusion 23 protruding upward, which serves as a first positioning portion provided on the upper surface of the end member 12 at a location close to the standing wall portion 20 . A curved protrusion 23 is curved upward. Further, the upper extending portion 21 is provided with two angular protrusions 24 and 25 protruding upward at locations separated from the protrusion 23 in the longitudinal direction.

下側延出部２２は、立壁部２０の下端と接続されている水平部２６と、この水平部２６の端部から下方へ屈曲している屈曲部２７と、この屈曲部２７の下端と接続されている窪み部２８とを有するものとなっており、上方へ窪んでいるこの窪み部２８は、端部材１２の下面に設けられた第２位置決め部となっているものであって、湾曲状に上方へ窪んでいる湾曲状窪み部となっている。そして、この窪み部２８は、作業足場板１０の長手方向において、上側延出部２１に設けられている突部２３と対応する位置に形成されている。また、窪み部２８からは、下面が水平となっている延伸部２９が本体１１側へ延びており、この延伸部２９の端部からは、傾斜部３０が斜め上方へ延びており、この傾斜部３０の端部には、水平に延びている水平部３１が設けられている。 The lower extending portion 22 is connected to a horizontal portion 26 connected to the lower end of the standing wall portion 20, a bent portion 27 bent downward from the end of the horizontal portion 26, and the lower end of the bent portion 27. The recessed portion 28 recessed upward serves as a second positioning portion provided on the lower surface of the end member 12, and has a curved shape. It is a curved recess that is recessed upward. The recessed portion 28 is formed at a position corresponding to the protrusion 23 provided on the upper extending portion 21 in the longitudinal direction of the work scaffolding board 10 . An extending portion 29 having a horizontal lower surface extends from the recess portion 28 toward the main body 11, and an inclined portion 30 extends obliquely upward from the end portion of the extending portion 29. A horizontal portion 31 extending horizontally is provided at the end of the portion 30 .

延伸部２９には、下方への突出量を有する角形状の２個の突起部３２，３３が、作業足場板１０の長手方向の間隔をあけて設けられ、これらの突起部３２，３３についての長手方向の間隔は寸法Ｌであり、この寸法Ｌは、それぞれの突起部３２，３３についての長手方向の寸法Ｔよりも大きくなっている。また、延伸部２９のうち、突起部３３が含まれている部分は、上下寸法が大きくなっている厚肉部３４となっており、この厚肉部３４の上下の厚さ寸法は、上述した突部２３と突出部２４，２５を含む上側延出部２１の上下の厚さ寸法よりも大きい寸法となっている。また、水平部３１の端部には、下方へ角形状で突出している突出部３５が設けられている。 The extending portion 29 is provided with two rectangular protrusions 32 and 33 having an amount of downward protrusion spaced apart in the longitudinal direction of the work scaffolding board 10. These protrusions 32 and 33 are The longitudinal spacing is dimension L, which is greater than the longitudinal dimension T for each projection 32,33. A portion of the extended portion 29 that includes the protrusion 33 is a thick portion 34 having a large vertical dimension. It is larger than the vertical thickness dimension of the upper extending portion 21 including the projecting portion 23 and projecting portions 24 and 25 . In addition, a projecting portion 35 projecting downward in a rectangular shape is provided at an end portion of the horizontal portion 31 .

以上のように形成されている端部材１２は、前述したようにアルミ又はアルミ合金の押し出し成形品又は引き抜き成形品であるため、立壁部２０や、上側延出部２１、下側延出部２２、さらには、上側延出部２１に設けられている突部２３、突出部２４，２５や、下側延出部２２に設けられている窪み部２８、突起部３２，３３、突出部３５等のそれぞれは、同じ形状で作業足場板１０の幅方向の全長に渡って連続したものとなっている。 Since the end member 12 formed as described above is an extrusion-molded product or a pultruded product of aluminum or an aluminum alloy as described above, the standing wall portion 20, the upper extending portion 21, and the lower extending portion 22 are formed. Further, the protrusion 23 and protrusions 24 and 25 provided on the upper extension 21, the recess 28 provided on the lower extension 22, the protrusions 32 and 33, the protrusion 35, etc. are of the same shape and are continuous over the entire length of the work scaffold board 10 in the width direction.

端部材１２の前記幅方向の長さは、前述したように２個の本体半部材１４を少しの隙間をあけて幅方向に向き合わせ、これら本体半部材１４を横架部材１６で結合して本体１１を形成したときにおける図５の切欠部１５の幅方向の寸法と対応する長さとなっており、本体１１の長手方向の両端部に形成されている切欠部１５のそれぞれに端部材１２が挿入配置される。この挿入配置を行った後に、それぞれの端部材１２の上側延出部２１の端部は、作業足場板１０の表面側を示している図７のように、本体１１を形成している２個の本体半部材１４の表面部１４Ｂに複数個所の溶接部３６で結合され、また、それぞれの端部材１２の下側延出部２２の端部は、作業足場板１０の裏面側を示している図８のように、本体１１を形成している２個の本体半部材１４の第２側壁部１４Ｄとリブ部１４Ｅとに溶接部３７で結合される。 The length of the end member 12 in the width direction is determined by arranging the two main body half members 14 facing each other in the width direction with a small gap and connecting the main body half members 14 with the horizontal member 16 as described above. It has a length corresponding to the widthwise dimension of the notch portion 15 in FIG. inserted. After this insertion arrangement, the ends of the upper extensions 21 of the respective end members 12 are aligned with the two pieces forming the body 11, as shown in FIG. are connected to the surface portion 14B of the main body half member 14 at a plurality of welded portions 36, and the ends of the lower extending portions 22 of the respective end members 12 indicate the back side of the work scaffolding board 10. As shown in FIG. 8, the two body half members 14 forming the body 11 are joined to the second side wall portions 14D and the rib portions 14E at the weld portions 37. As shown in FIG.

なお、溶接部３６で本体半部材１４の表面部１４Ｂに結合される上側延出部２１の端部には、図９で示したように、角形状となって上方へ突出している突出部２５が設けられ、この突出部２５において、端部材１２の上側延出部２１は本体半部材１４の表面部１４Ｂに溶接部３６で結合されるため、突出部２５による大きな溶接面積が確保されて、端部材１２の上側延出部２１と本体半部材１４の表面部１４Ｂとを大きな強度で結合することができる。また、溶接部３７で本体半部材１４の第２側壁部１４Ｄとリブ部１４Ｅとに結合される下側延出部２２の端部には、図９で示したように、角形状となって下方へ突出している突出部３５が設けられ、また、第２側壁部１４Ｄとリブ部１４Ｅの下端部には、図５（Ｂ）で説明したフランジ部１４Ｈ，１４Ｉが設けられ、これらの突出部３５とフランジ部１４Ｈ，１４Ｉにおいて、端部材１２の上側延出部２１は本体半部材１４の第２側壁部１４Ｄとリブ部１４Ｅに溶接部３７で結合されるため、これらの突出部３５とフランジ部１４Ｈ，１４Ｉによる大きな溶接面積が確保されて、端部材１２の下側延出部２２と本体半部材１４の第２側壁部１４Ｄとリブ部１４Ｅとを大きな強度で結合することができる。 As shown in FIG. 9, the end portion of the upper extending portion 21 joined to the surface portion 14B of the main body half member 14 by the welding portion 36 has a rectangular projecting portion 25 projecting upward. is provided, and since the upper extending portion 21 of the end member 12 is joined to the surface portion 14B of the main body half member 14 at the welding portion 36 at the projecting portion 25, a large welding area is secured by the projecting portion 25, The upper extending portion 21 of the end member 12 and the surface portion 14B of the main body half member 14 can be joined with great strength. The end of the lower extending portion 22 joined to the second side wall portion 14D and the rib portion 14E of the main body half member 14 at the weld portion 37 has an angular shape as shown in FIG. A projecting portion 35 projecting downward is provided, and the flange portions 14H and 14I described with reference to FIG. 35 and the flange portions 14H and 14I, the upper extending portion 21 of the end member 12 is joined to the second side wall portion 14D and the rib portion 14E of the main body half member 14 by the weld portion 37, so that the projecting portion 35 and the flange portions 14H and 14I A large welding area is ensured by the portions 14H and 14I, and the lower extending portion 22 of the end member 12, the second side wall portion 14D of the main body half member 14, and the rib portion 14E can be joined with great strength.

また、上述したように本体１１の長手方向の両端部に形成されている切欠部１５のそれぞれに端部材１２を挿入配置したときには、端部材１２の下側延出部２２に設けられている厚肉部３４の略全体は、本体半部材１４の第１側壁部１４Ｃの下側のフランジ部１４Ｇの下面から下方へ突出しており、このフランジ部１４Ｇの下面は、図９で示されている本体１１の下面１１Ａでもある。この下面１１Ａから下方へ突出している厚肉部３４の略全体は、この下面１１Ａに溶接部３８により結合され、これにより、図７の溶接部３６と、図８の溶接部３７と、図９の溶接部３８とにより、端部材１２は本体１１に結合される。 In addition, when the end member 12 is inserted into each of the notch portions 15 formed at both ends in the longitudinal direction of the main body 11 as described above, the thickness of the lower extending portion 22 of the end member 12 is increased. Substantially the entire meat portion 34 projects downwardly from the lower surface of the flange portion 14G below the first side wall portion 14C of the body half member 14, the lower surface of this flange portion 14G being the main body shown in FIG. 11 is also the lower surface 11A. Substantially the entire thick portion 34 projecting downward from the lower surface 11A is joined to the lower surface 11A by a weld 38, thereby forming the weld 36 in FIG. 7, the weld 37 in FIG. 8, and the weld 37 in FIG. The end member 12 is joined to the body 11 by a weld 38 at the end.

以上のように本実施形態では、端部材１２の下側延出部２２が本体１１の下面１１Ａに溶接部３８で結合される箇所は、突部２３と突出部２４，２５を含む上側延出部２１の厚さ寸法よりも上下寸法が大きくなっている厚肉部３４であり、この厚肉部３４において、端部材１２の下側延出部２２が本体１１の下面１１Ａに溶接で結合されるため、本体１１の下面１１Ａと端部材１２の下側延出部２２との結合を、上下寸法が大きくなっている厚肉部３４の寸法を利用した大きな強度によって行うことができる。 As described above, in this embodiment, the portion where the lower extending portion 22 of the end member 12 is joined to the lower surface 11A of the main body 11 by the welding portion 38 is the upper extending portion including the projecting portion 23 and the projecting portions 24 and 25. The thick portion 34 has a vertical dimension larger than the thickness dimension of the portion 21. At this thick portion 34, the lower extending portion 22 of the end member 12 is joined to the lower surface 11A of the main body 11 by welding. Therefore, the lower surface 11A of the main body 11 and the lower extending portion 22 of the end member 12 can be connected with high strength utilizing the dimension of the thick portion 34 whose vertical dimension is large.

図９には、前述したように端部材１２と端部隙間カバー１３との連結構造も示されており、本体半部材１４や端部材１２と同様に、アルミ又はアルミ合金の押し出し成形品又は引き抜き成形品となっている端部隙間カバー１３は、図１に示されているように、２枚の作業足場板１０を、これらの作業足場板１０の長手方向に直列状態で配置したときに、これらの作業足場板１０の端部材１２同士の間に生ずる隙間を塞ぐためのものである。端部隙間カバー１３の上面部１３Ａには、滑り止め用となっている複数個の突出部４０が作業足場板１０の長手方向の間隔を設けられており、端部材１２と端部隙間カバー１３とが連結されたときには、端部材１２の上側延出部２１に設けられている突部２３と突出部２４，２５は、端部隙間カバー１３の複数個の突出部４０とともに、作業足場板１０の長手方向の間隔をあけて配置されることになるため、複数個の突出部４０と同様に、滑り止め用の突出部ともなるものである。 FIG. 9 also shows the connection structure between the end member 12 and the end gap cover 13 as described above. As shown in FIG. 1, the end gap cover 13, which is a molded product, has two working scaffolding boards 10 arranged in series in the longitudinal direction of these working scaffolding boards 10. It is intended to close the gap that occurs between the end members 12 of these work scaffolding boards 10 . On the upper surface 13A of the end gap cover 13, a plurality of non-slip protrusions 40 are provided at intervals in the longitudinal direction of the work platform board 10, and the end member 12 and the end gap cover 13 are provided. are connected, the projecting portion 23 and the projecting portions 24 and 25 provided on the upper extending portion 21 of the end member 12 are connected to the work scaffolding plate 10 together with the projecting portions 40 of the end gap cover 13. are spaced apart in the longitudinal direction, they also serve as anti-slip protrusions, similar to the plurality of protrusions 40 .

次に、端部材１２と端部隙間カバー１３との連結構造について説明する。端部隙間カバー１３の上面部１３Ａにおける端部材１２側の端部には、下方へ延出している係止部４１が設けられ、端部材１２の立壁部２０の上部には、上向きに開口している受け部４２が設けられ、この受け部４２に係止部４１が上から挿入されることにより、係止部４１が受け部４２に受けられた状態で係止され、これにより、端部材１２の上部と端部隙間カバー１３の上部とが連結されることになる。また、端部隙間カバー１３には、係止部４１よりも下側において、端部材１２の立壁部２０と面接触する後壁部４３が設けられ、この後壁部４３に貫通孔４３Ａが形成され、この貫通孔４３Ａと、図６でも示されている端部材１２の立壁部２０に形成されている貫通孔２０Ａとに、ブラインドリベット等の結合具４４の貫通部４４Ａを貫通させることにより、この結合具４４により端部材１２の下部と端部隙間カバー１３の下部とが連結される。 Next, the connecting structure between the end member 12 and the end gap cover 13 will be described. An engaging portion 41 extending downward is provided at the end portion of the upper surface portion 13A of the end gap cover 13 on the side of the end member 12, and the upper portion of the standing wall portion 20 of the end member 12 is open upward. By inserting the locking portion 41 into the receiving portion 42 from above, the locking portion 41 is locked while being received by the receiving portion 42, whereby the end member 12 and the upper part of the end gap cover 13 are connected. Further, the end gap cover 13 is provided with a rear wall portion 43 which is in surface contact with the standing wall portion 20 of the end member 12 below the locking portion 41, and a through hole 43A is formed in the rear wall portion 43. By passing through the through hole 43A and the through hole 20A formed in the vertical wall portion 20 of the end member 12 shown in FIG. The lower portion of the end member 12 and the lower portion of the end gap cover 13 are connected by this coupling 44 .

なお、端部隙間カバー１３には、後壁部４３の上側において、端部材１２に対して作業足場板１０の長手方向の反対側へ窪んだ窪み部５１が設けられている。 Note that the end gap cover 13 is provided with a recessed portion 51 that is recessed on the opposite side of the end member 12 in the longitudinal direction of the work scaffolding board 10 on the upper side of the rear wall portion 43 .

この端部材１２と端部隙間カバー１３との連結構造によると、端部隙間カバー１３の係止部４１の高さ位置を、窪み部５１の上下寸法分だけ端部材１２の受け部４２よりも高い位置にして、端部隙間カバー１３の後壁部４３を端部材１２の立壁部２０に面接触させ、次いで、端部隙間カバー１３を端部材１２に対して上から降ろすという簡単な作業だけを行うことにより、係止部４１を受け部４２に挿入、係止することができ、このため、端部材１２の上部と端部隙間カバー１３の上部とを容易に連結することができる。また、端部隙間カバー１３には、受け部４２から下側にずれた箇所において、端部材１２の立壁部２０と面接触している後壁部４３が設けられているため、これらの後壁部４３と立壁部２０とに形成された貫通孔４３Ａ，２０Ａに、ブラインドリベット等による結合具４４の貫通部４４Ａを貫通させる作業を行うことにより、端部材１２の下部と端部隙間カバー１３の下部も容易に連結することができる。 According to this connection structure between the end member 12 and the end gap cover 13, the height position of the engaging portion 41 of the end gap cover 13 is set higher than the receiving portion 42 of the end member 12 by the vertical dimension of the recess portion 51. Only a simple work of placing the end gap cover 13 at a high position, bringing the rear wall part 43 of the end gap cover 13 into surface contact with the standing wall part 20 of the end member 12, and then lowering the end gap cover 13 on the end member 12 from above. By performing the above, the locking portion 41 can be inserted and locked into the receiving portion 42, so that the upper portion of the end member 12 and the upper portion of the end gap cover 13 can be easily connected. In addition, since the end gap cover 13 is provided with a rear wall portion 43 that is in surface contact with the standing wall portion 20 of the end member 12 at a portion shifted downward from the receiving portion 42, these rear walls The lower portion of the end member 12 and the end gap cover 13 are separated from each other by piercing the through holes 43A and 20A formed in the portion 43 and the standing wall portion 20 with the through portions 44A of the couplings 44 using blind rivets or the like. The lower part can also be easily connected.

なお、図７及び図８に示されているように、作業足場板１０の幅方向における端部隙間カバー１３の寸法は、端部材１２よりも小さいため、上述の連結構造により、端部材１２に、作業足場板１０の長手方向における本体１１とは反対側において、端部隙間カバー１３を連結したときには、作業足場板１０の幅方向において、端部隙間カバー１３と、作業足場板１０の本体１１に取り付けられている前述のフック部材１７との間に隙間が生じている。 7 and 8, the dimension of the end gap cover 13 in the width direction of the work scaffolding board 10 is smaller than that of the end member 12. , When the end gap cover 13 is connected on the side opposite to the main body 11 in the longitudinal direction of the work scaffolding board 10, the end gap cover 13 and the main body 11 of the work scaffolding board 10 in the width direction of the work scaffolding board 10 There is a gap between the hook member 17 and the hook member 17 attached to it.

図１０には、図１の仮設足場１が構築される建築作業現場において、あるいは、トラックに荷台等において、多数枚の作業足場板１０を上下に積み重ねたときの状態が示されている。図１１には、このときの作業足場板１０の一部が示され、図１１では、それぞれの作業足場板１０における本体１１とフック部材１７等は、二点鎖線で示され、端部材１２と端部隙間カバー１３は、実線で示されている。これらの図１０及び図１１に示されているように、多数枚の作業足場板１０を上下に積み重ねるときには、これらの作業足場板１０のうち、最下段の作業足場板１０Ａだけが上下逆とされる。 FIG. 10 shows a state in which a large number of work scaffolding boards 10 are stacked vertically at a construction work site where the temporary scaffolding 1 of FIG. 1 is constructed, or on a loading platform of a truck. FIG. 11 shows a part of the work scaffolding board 10 at this time, and in FIG. The end gap cover 13 is shown in solid lines. As shown in FIGS. 10 and 11, when a large number of work scaffolding boards 10 are stacked vertically, only the lowest work scaffolding board 10A among these work scaffolding boards 10 is turned upside down. be.

上下が逆となった最下段の作業足場板１０Ａの上に下から２段目の作業足場板１０を載せると、最下段の作業足場板１０Ａの端部材１２の下側延出部２２と、下から２段目の作業足場板１０の端部材１２の下側延出部２２とが上下に対面するため、この対面させる作業を、これらの作業足場板１０Ａ，１０の端部材１２の下側延出部２２に作業足場板１０の長手方向の間隔をあけてそれぞれ設けられている２個の突起部３２，３３同士を、図１１に示されているように、この長手方向にずれた噛み合い状態にさせて行う。これにより、最下段の作業足場板１０Ａと下から２段目の作業足場板１０は、突起部３２，３３同士による位置決め作用により、作業足場板１０の長手方向に位置決めされる。 When the second working scaffolding board 10 is placed on the upside down lowermost working scaffolding board 10A, the lower extending part 22 of the end member 12 of the lowest working scaffolding board 10A, Since the lower extending portion 22 of the end member 12 of the work scaffolding board 10 on the second stage from the bottom is vertically opposed, this facing operation is carried out by The two projections 32 and 33 provided on the extension 22 at intervals in the longitudinal direction of the work scaffolding board 10 are engaged with each other in this longitudinally displaced manner as shown in FIG. Let it be in a state. As a result, the lowermost work scaffolding board 10A and the second work scaffolding board 10 from the bottom are positioned in the longitudinal direction of the work scaffolding board 10 by the positioning action of the protrusions 32 and 33 .

また、本実施形態では、図９で説明したように、２個の突起部３２，３３についての作業足場板１０の長手方向の間隔は寸法Ｌであり、この寸法Ｌは、それぞれの突起部３２，３３についての作業足場板１０の長手方向の寸法Ｔよりも大きくなっているため、図１１に示されているように、２枚の作業足場板１０Ａ，１０の２個の突起部３２，３３同士を作業足場板１０の長手方向にずれた噛み合い状態にさせる作業を容易に行うことができる。 Further, in the present embodiment, as described with reference to FIG. 9, the distance between the two projections 32 and 33 in the longitudinal direction of the work scaffolding board 10 is the dimension L, and this dimension L is the distance between the projections 32 , 33 is larger than the longitudinal dimension T of the work platform board 10, so that the two projections 32, 33 of the two work platform boards 10A, 10, as shown in FIG. It is possible to easily carry out the work of making the working scaffolding boards 10 in a displaced meshing state with each other in the longitudinal direction.

図１１に示されているように、下から２段目の作業足場板１０の上に下から３段目の作業足場板１０を積み重ねるときには、下から２段目の作業足場板１０の端部材１２の上側延出部２１に、この端部材１２の上面に第１位置決め部として設けられている突部２３を、下から３段目の作業足場板１０の端部材１２の下側延出部２２に、この端部材１２の下面に第２位置決め部として設けられている窪み部２８に嵌合する。これにより、これらの作業足場板１０は、突部２３と窪み部２８により、作業足場板１０の長手方向に位置決めされる。下から３段目の作業足場板１０の上に下から４段目の作業足場板１０を積み重ね、さらに、下から５段目以降の作業足場板１０も積み重ねるときにも、下側の作業足場板１０の端部材１２の上側延出部２１に設けられている突部２３を、上側の作業足場板１０の端部材１２の下側延出部２２に設けられている窪み部２８に嵌合する。このため、下から２段目以降の作業足場板１０のそれぞれについては、突部２３と窪み部２８による位置決め作用により、作業足場板１０の長手方向に位置決めされる。 As shown in FIG. 11, when stacking the work scaffolding board 10 of the third stage from the bottom on the work scaffolding board 10 of the second stage from the bottom, the end member of the work scaffolding board 10 of the second stage from the bottom 12, the projecting portion 23 provided as a first positioning portion on the upper surface of the end member 12 is attached to the lower extending portion of the end member 12 of the work scaffolding plate 10 on the third stage from the bottom. 22 is fitted into a recessed portion 28 provided on the lower surface of the end member 12 as a second positioning portion. As a result, these working scaffolding boards 10 are positioned in the longitudinal direction of the working scaffolding boards 10 by the protrusions 23 and the recesses 28 . When stacking the work scaffolding board 10 of the fourth stage from the bottom on the work scaffolding board 10 of the third stage from the bottom and further stacking the work scaffolding boards 10 of the fifth and subsequent stages from the bottom, the work scaffold on the lower side The protrusion 23 provided on the upper extension 21 of the end member 12 of the board 10 is fitted into the recess 28 provided on the lower extension 22 of the end member 12 of the upper work platform board 10. do. Therefore, each of the work scaffolding boards 10 on the second and subsequent stages from the bottom is positioned in the longitudinal direction of the work scaffolding boards 10 by the positioning action of the protrusions 23 and the recesses 28 .

また、本実施形態の突部２３は、前述したように、湾曲状に上方へ突出している湾曲状突部となっており、また、窪み部２８は、湾曲状に上方へ窪んでいる湾曲状窪み部となっているため、突部２３の湾曲状となっている形状と、窪み部２８の湾曲状となっている形状とによる案内作用により、突部２３を窪み部２８に容易に嵌合させることができる。 Further, as described above, the projection 23 of the present embodiment is a curved projection that projects upward in a curved shape, and the recessed portion 28 is a curved projection that is recessed upward in a curved shape. Since the concave portion is formed, the curved shape of the protrusion 23 and the curved shape of the concave portion 28 guide the protrusion 23 into the concave portion 28 easily. can be made

そして、本実施形態に係る端部材１２は、前述したようにアルミ又はアルミ合金の押し出し成形品又は引き抜き成形品であるため、突起部３２，３３と突部２３と窪み部２８のそれぞれは、端部材１２の長さ方向となっている作業足場板１０の幅方向の全長に渡って同じ形状で連続して形成されたものとなっているため、多数枚の作業足場板１０を上下に積み重ねる際に、これらの作業足場板１０に、作業足場板１０の幅方向への多少のずれが生じても、これらの作業足場板１０を、作業足場板１０の長手方向に位置決めして積み重ねることができる。 Since the end member 12 according to the present embodiment is an extrusion-molded product or a pultrusion-molded product of aluminum or an aluminum alloy as described above, each of the protrusions 32 and 33, the protrusion 23, and the recess 28 is an end member. Since the work scaffolding board 10 is continuously formed in the same shape over the entire length of the width direction of the work scaffolding board 10 which is the length direction of the member 12, when stacking a large number of work scaffolding boards 10 up and down In addition, even if these work scaffolding boards 10 are slightly displaced in the width direction of the work scaffolding boards 10, these work scaffolding boards 10 can be positioned and stacked in the longitudinal direction of the work scaffolding boards 10. .

また、突起部３２，３３と突部２３と窪み部２８のそれぞれが、作業足場板１０の幅方向の全長に渡って同じ形状で連続して形成されたものとなっていることにより、端部材１２をアルミ又はアルミ合金の押し出し成形品又は引き抜き成形品とすることができ、これにより、アルミ又はアルミ合金の押し出し成形又は引き抜き成形により、突起部３２，３３と突部２３と窪み部２８とが設けられた長寸法の端部材素材を製造した後に、この端部材素材を所定の寸法で切断することにより、突起部３２，３３と突部２３と窪み部２８とが設けられた端部材１２を容易に多数製造することができ、これにより、作業足場板１０全体の製造作業の簡単化と製造コストの低減を図ることができる。 Moreover, each of the protrusions 32 and 33, the protrusion 23, and the recess 28 is formed continuously in the same shape over the entire length of the work scaffolding board 10 in the width direction. 12 can be an aluminum or aluminum alloy extrusion or pultrusion, whereby projections 32, 33, projection 23 and recess 28 are formed by aluminum or aluminum alloy extrusion or pultrusion. After manufacturing the end member material having the long dimension, the end member material is cut to a predetermined size to form the end member 12 provided with the protrusions 32 and 33, the projection 23, and the recess 28. A large number of scaffolding boards 10 can be easily manufactured, thereby simplifying the manufacturing work of the entire work scaffolding board 10 and reducing the manufacturing cost.

図９に示されているように、本実施形態に係る端部材１２の立壁部２０には、前述した受け部４２よりも下側において、水抜き孔５０が形成されている。この水抜き孔５０は、図５（Ｂ）に示されているそれぞれの本体半部材１４の第１側壁部１４Ｃとリブ部１４Ｅの間の区画空間と、第２側壁部１４Ｄとリブ部１４Ｅの間の区画空間とに対応して、立壁部２０に複数個設けられている。また、前述したように、端部隙間カバー１３には、後壁部４３の上側において、端部材１２に対して作業足場板１０の長手方向の反対側へ窪んだ窪み部５１が設けられ、図９に示されているように、それぞれの水抜き孔５０は、全体又は一部がこの窪み部５１に臨んで立壁部２０に形成されている。 As shown in FIG. 9, the standing wall portion 20 of the end member 12 according to the present embodiment is formed with a drain hole 50 below the receiving portion 42 described above. This drain hole 50 is formed by dividing a space between the first side wall portion 14C and the rib portion 14E of each main body half member 14 shown in FIG. A plurality of them are provided on the vertical wall portion 20 corresponding to the partitioned space between them. Further, as described above, the end gap cover 13 is provided with the recessed portion 51 recessed on the upper side of the rear wall portion 43 toward the opposite side of the end member 12 in the longitudinal direction of the work scaffolding board 10 . 9, each drainage hole 50 is formed in the vertical wall portion 20 so as to face the recess 51 in whole or in part.

図１０及び図１１で説明したように、多数枚の作業足場板１０を上下に積み重ねるときには、最下段の作業足場板１０Ａは上下逆とされるため、この作業足場板１０Ａの本体１１に雨水等の水が溜まるおそれがある。しかし、最下段の作業足場板１０Ａの端部材１２には、立壁部２０において、それぞれの本体半部材１４の第１側壁部１４Ｃとリブ部１４Ｅの間の区画空間と、第２側壁部１４Ｄとリブ部１４Ｅの間の区画空間とに対応して、複数個の水抜き孔５０が設けられているため、本体１１におけるこれらの区画空間に溜まった水を水抜き孔５０から端部隙間カバー１３側へ流出させて、この端部隙間カバー１３に設けられている窪み部５１側へ抜き取ることができ、そして、図７及び図８に示されているように、端部隙間カバー１３についての作業足場板１０の幅方向の寸法は、端部材１２よりも小さくて、この端部材１２に、作業足場板１０の長手方向における本体１１とは反対側において、端部隙間カバー１３を連結したときには、作業足場板１０の幅方向において、端部隙間カバー１３と、本体１１に取り付けられているフック部材１７との間に隙間が生じているため、窪み部５１に達した雨水等の水を、端部隙間カバー１３における作業足場板１０の幅方向の両端部から排出させることができる。 As described with reference to FIGS. 10 and 11, when a large number of work scaffolding boards 10 are stacked vertically, the lowest work scaffolding board 10A is turned upside down. of water may accumulate. However, in the end member 12 of the lowermost work scaffolding board 10A, the partition space between the first side wall portion 14C and the rib portion 14E of each main body half member 14 and the second side wall portion 14D are provided in the standing wall portion 20. Since a plurality of water drain holes 50 are provided corresponding to the partitioned spaces between the rib portions 14E, the water accumulated in these partitioned spaces in the main body 11 can be drained from the end gap cover 13 through the water drain holes 50. 7 and 8, the end gap cover 13 can be pulled out to the side of the recess 51 provided in the end gap cover 13. The dimension in the width direction of the scaffolding board 10 is smaller than the end member 12, and when the end gap cover 13 is connected to the end member 12 on the opposite side of the main body 11 in the longitudinal direction of the working scaffolding board 10, In the width direction of the work scaffolding board 10, since a gap is formed between the end gap cover 13 and the hook member 17 attached to the main body 11, water such as rainwater reaching the recess 51 is It can be discharged from both ends of the work scaffold board 10 in the width direction of the gap cover 13 .

本発明は、建築作業現場や土木作業現場等の作業現場で仮設足場を構築する際に、この仮設足場の構成要素として用いられる作業足場板に利用することができる。 INDUSTRIAL APPLICABILITY The present invention can be used as a work scaffold board used as a constituent element of a temporary scaffold when constructing a temporary scaffold at a work site such as a construction work site or a civil engineering work site.

１０，１０Ａ作業足場板
１１本体
１１Ａ下面
１２端部材
１３端部隙間カバー
２０立壁部
２１上側延出部
２２下側延出部
２３第１位置決め部であって、湾曲状突部となっている突部
２８第２位置決め部であって、湾曲状窪み部となっている窪み部
３２，３３突起部
３４厚肉部
３６，３７，３８溶接部
４１係止部
４２受け部
４３後壁部
４４結合具
４４Ａ貫通部
５０水抜き孔
Ｌ長手方向における複数個の突起部の間隔
Ｔ長手方向における突起部についての寸法
REFERENCE SIGNS LIST 10, 10A work scaffolding board 11 main body 11A lower surface 12 end member 13 end gap cover 20 vertical wall portion 21 upper extension portion 22 lower extension portion 23 first positioning portion, which is a curved protrusion Part 28 Second positioning part, recessed part serving as a curved recessed part 32, 33 Protruding part 34 Thick part 36, 37, 38 Welding part 41 Locking part 42 Receiving part 43 Rear wall part 44 Coupler 44A Penetrating portion 50 Drain hole L Spacing between a plurality of protrusions in the longitudinal direction T Dimension of the protrusions in the longitudinal direction

Claims

A working scaffold board comprising a main body having a longitudinal dimension larger than a width dimension orthogonal to the longitudinal direction, and end members arranged on both sides of the main body in the longitudinal direction. hand,
A first positioning portion is provided on the upper surface of each of the end members, and a second positioning portion is provided on the lower surface of each of the end members. In the work scaffold board, the position in the longitudinal direction is such that a plurality of vertically stacked work scaffold boards are positioned in the longitudinal direction by the first positioning part and the second positioning part,
The first positioning portion has the same shape and is formed continuously over the entire length of the end member in the width direction. It is formed continuously over the entire length in the width direction ,
On the lower surface of each of the end members, a plurality of projections having downward projections are provided at intervals in the longitudinal direction. 2. A working scaffold board, wherein a plurality of protrusions are engaged with each other in a state of displacement in said longitudinal direction so that said two boards are positioned in said longitudinal direction.

2. A work platform according to claim 1 , wherein the distance between said two projections is greater than said longitudinal dimension of said projections.

A working scaffold board comprising a main body having a longitudinal dimension larger than a width dimension perpendicular to the longitudinal direction, and end members arranged on both sides of the main body in the longitudinal direction. hand,
A first positioning portion is provided on the upper surface of each of the end members, and a second positioning portion is provided on the lower surface of each of the end members. In the work scaffold board, the position in the longitudinal direction is such that a plurality of vertically stacked work scaffold boards are positioned in the longitudinal direction by the first positioning part and the second positioning part,
The first positioning portion has the same shape and is formed continuously over the entire length of the end member in the width direction. It is formed continuously over the entire length in the width direction,
Upper and lower portions of each of the end members are provided with an upper extension portion and a lower extension portion extending toward the main body, and the upper surface of the upper extension portion is provided with the first positioning portion. In addition, the second positioning portion is provided on the lower surface of the lower extension portion, and at least a part of the lower extension portion has a vertical thickness dimension larger than that of the upper extension portion. A work scaffolding board, characterized in that a thick-walled portion that at least partially protrudes downward from the lower surface of the main body is joined to the lower surface of the main body by welding.

A working scaffold board comprising a main body having a longitudinal dimension larger than a width dimension perpendicular to the longitudinal direction, and end members arranged on both sides of the main body in the longitudinal direction. hand,
A first positioning portion is provided on the upper surface of each of the end members, and a second positioning portion is provided on the lower surface of each of the end members. In the work scaffold board, the position in the longitudinal direction is such that a plurality of vertically stacked work scaffold boards are positioned in the longitudinal direction by the first positioning part and the second positioning part,
The first positioning portion has the same shape and is formed continuously over the entire length of the end member in the width direction. It is formed continuously over the entire length in the width direction,
An end gap cover is connected to each of the end members on the side opposite to the main body in the longitudinal direction, and these end gap covers are provided with engaging portions extending downward. In addition, the end member is provided with a receiving portion that opens upward, and the locking portion is locked to the receiving portion by inserting the locking portion into the receiving portion from above. A working scaffold plank characterized by:

5. The work scaffolding board according to claim 4 , wherein the receiving portion is formed on a standing wall portion provided on the end member, and the end gap cover is provided at a position vertically displaced from the receiving portion, A rear wall portion is provided that is in surface contact with the standing wall portion, and the standing wall portion and the rear wall portion are coupled by a coupler having a penetrating portion penetrating the standing wall portion and the rear wall portion, whereby the end portion is A work scaffold board, wherein a member and the end gap cover are connected.

The work scaffolding board according to claim 5 , wherein the vertical wall portion is provided with a drain hole for draining water accumulated in the main body when the main body is turned upside down to the side of the end gap cover. A work scaffold board characterized by being

The work scaffolding board according to any one of claims 1 to 6 , wherein one of the first positioning part and the second positioning part is a protruding protrusion, and the other positioning part is , a work scaffold board characterized in that it has a recessed portion, and the plurality of vertically stacked work scaffolding boards are positioned in the longitudinal direction by fitting the protrusion into the recessed portion. .

The work scaffolding board according to claim 7 , wherein the protrusion is a curved protrusion that protrudes in a curved shape, and the recess is a curved recess that is recessed in a curved shape. Work scaffolding planks.

The work scaffolding board according to any one of claims 1 to 8, wherein the main body comprises two main body half members each having a symmetrical shape in the width direction about the central portion of the main body in the width direction. are combined in the width direction.

10. A work platform according to claim 9, wherein each said body half-member has a surface portion and first and second sidewall portions extending downwardly from said widthwise opposite sides of said surface portion. and each of the first side wall portions arranged on the outer side in the width direction of the main body protrudes in the longitudinal direction more than the surface portion and the second side wall portion. A work scaffold board characterized in that a notch formed in the main body for disposing the end member is formed between the cut-out portions.

11. The work scaffold board according to claim 10, wherein each of said first side walls is provided with a hook member that engages with a horizontal member of the temporary scaffold.