JP4247563B1 - Scaffolding board - Google Patents

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JP4247563B1
JP4247563B1 JP2008269663A JP2008269663A JP4247563B1 JP 4247563 B1 JP4247563 B1 JP 4247563B1 JP 2008269663 A JP2008269663 A JP 2008269663A JP 2008269663 A JP2008269663 A JP 2008269663A JP 4247563 B1 JP4247563 B1 JP 4247563B1
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JP2010095966A (en
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勝彦 坂本
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東阪工業株式会社
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Abstract

【課題】裏補強鋼帯がなくても足場板にねじれや変形が生じないようにする。
【解決手段】、足場板(A)は、長方形の平らな鋼板が、両側下方に横断面U形部(１)(２)を形成するように折曲げられるとともに、各U形部(１)(２) の外側壁(３)(４)上縁に続いてU形部(１)(２) の上開口を覆い同内側壁(５) (６)上縁に至る水平部(７) (８) およびこの水平部(７) (８) から同内側壁(５) (６)全面に重なって二重壁をつくる垂下部(９) (１０)を形成するように折曲げられることにより、主構成部材(１１)が形成せられ、主構成部材(１１)の両側U形部(１)(２) の上開口を覆う水平部(７) (８) および両側U形部(１)(２) の内側壁(５) (６) 上縁どうし間の水平部(１２)が合わせて床材となされ、横断面コ形で両側壁(１３)(１４) を有するはり材(１５)が主構成部材(１１)の前後端に嵌め被せられかつ溶接せられている。
【選択図】 図２An object of the present invention is to prevent the scaffold plate from being twisted or deformed even without a back reinforcing steel strip.
SOLUTION: A scaffold plate (A) is formed by bending a rectangular flat steel plate so as to form a U-shaped portion (1) (2) in a cross section below both sides, and each U-shaped portion (1). (2) Outer wall (3) (4) Following the upper edge, the U-shaped part (1) (2) covers the upper opening of the inner wall (5) (6) Horizontal part (7) ( 8) and the horizontal portion (7) (8) are folded so as to form a hanging portion (9) (10) that overlaps the entire inner wall (5) (6) and forms a double wall, A horizontal part (7) (8) and a double-sided U-shaped part (1) (1) 2) Inner side wall (5) (6) The horizontal part (12) between the upper edges is combined to form a flooring, and a beam (15) having a U-shaped cross section and having both side walls (13) (14) is provided. The main constituent member (11) is fitted and welded to the front and rear ends.
[Selection] Figure 2

Description

本発明は、足場板に関する。   The present invention relates to a scaffold plate.

従来の足場板は、下記特許文献１の図１に開示されているような構造であるが、この構造では吹き上げる強い風により生じるねじれに抗する強度が不十分であり、しかも足場板の幅の中程に作業員が来ると、床材が横断面凹円弧状に変形し、左右の布材が外に開くため、現実に使用されている足場板(D)は、図５に示されているようなものである。すなわち、所定幅および所定長さを有する長方形の平らな鋼板が、左側下方に立ち上がり縁(２０)を有する横断面L形部 (２１) を、右側下方に立ち上がり縁(２２) を有する横断面逆L形部(２３) を形成するように折曲げられ、さらに横断面L形部(２１)と横断面逆L形部(２３) 間の水平部(２４)の幅の中間に水平部(２４)から直下に折曲げられて２重になった垂直部を頂部に有する横断面三角形の下向き突条(２５)が折曲げ形成せられることにより、主構成部材(２６) が形成せられ、主構成部材(２６) のL形部(２１)と逆L形部(２３)が布材となされるとともに、L形部(２１) と逆L形部(２３) の上縁間の水平部(２４)が床材となされ、横断面コ形で両側壁(２７)(２８) を有する鋼製はり材(２９)が主構成部材(２６)の前後端に嵌め被せられかつ溶接せられ、さらに前後両縁にL形部(２１) の立ち上がり縁(２０)と横断面三角形の下向き突条(２５)との間および横断面三角形の下向き突条(２５)と逆L形部(２３)の立ち上がり縁(２２)との間にそれぞれ嵌まる梯形状立ち上がり部(３０)を有する複数本の裏補強鋼帯(３１)が左右両布材の下水平部に跨るように渡されかつ左右両布材および横断面三角形の下向き突条(２５)の各下水平部に直交状に溶接せられたものであった。   The conventional scaffold plate has a structure as disclosed in FIG. 1 of Patent Document 1 below, but this structure has insufficient strength to resist torsion caused by a strong wind blowing up, and the width of the scaffold plate is not sufficient. When the worker comes in the middle, the flooring is deformed into a concave arc shape in cross section, and the left and right cloth materials open to the outside, so the scaffolding plate (D) actually used is shown in FIG. It is like. That is, a rectangular flat steel plate having a predetermined width and a predetermined length has an L-shaped section (21) having a rising edge (20) on the lower left side and an inverted cross section having a rising edge (22) on the lower right side. The horizontal portion (24) is bent to form an L-shaped portion (23), and further in the middle of the width of the horizontal portion (24) between the L-shaped portion (21) and the inverted L-shaped portion (23). ), The downward projecting ridge (25) having a vertical vertical section that is doubled as a result of being bent directly below is bent to form a main component member (26). The L-shaped portion (21) and the inverted L-shaped portion (23) of the component member (26) are used as a cloth material, and the horizontal portion between the upper edges of the L-shaped portion (21) and the inverted L-shaped portion (23) ( 24) is a flooring material, and a steel beam material (29) having a U-shaped cross section and having both side walls (27), (28) is fitted and welded to the front and rear ends of the main component (26), In addition, between the rising edge (20) of the L-shaped portion (21) and the downward projecting ridge (25) of the cross-sectional triangle, and the downward projecting ridge (25) and the inverted L-shaped portion (23 ) Are provided so that a plurality of back reinforcing steel strips (31) each having a trapezoidal rising portion (30) that fits between the rising edges (22) of each of the left and right cloth members straddle the lower horizontal portions of the left and right cloth materials and It was welded orthogonally to each lower horizontal part of the downward protrusion (25) of both cloth materials and a cross-sectional triangle.

なお、この明細書において、左というのは、図２〜図４の左側をいい、右というのは、同図の右側をいうものとする。また、図５に示す従来品の左右は本発明品の左右に対応するのとする。   In this specification, the left means the left side of FIGS. 2 to 4, and the right means the right side of FIG. Further, the left and right of the conventional product shown in FIG. 5 correspond to the left and right of the product of the present invention.

従来の上記足場板(D)は、上記のように前後両縁にL形部(２１) の立ち上がり縁(２０)と横断面三角形の下向き突条(２５)との間および横断面三角形の下向き突条(２５)と逆L形部(２３) 立ち上がり縁(２２)との間にそれぞれ嵌まる梯形状立ち上がり部(３０)を有する複数本の裏補強鋼帯(３１)が左右両布材の下水平部に跨るように渡されかつ左右両布材および横断面三角形の下向き突条(２５)の各下水平部に直交状に溶接せられたものであるから、裏補強鋼帯(３１)分重量が増加するし、裏補強鋼帯(３１)を溶接するための手間および溶接部分の点検・修理を必要とした。   As described above, the conventional scaffold plate (D) is formed between the rising edge (20) of the L-shaped portion (21) and the downward projection (25) of the cross-sectional triangle on the front and rear edges and downward of the cross-sectional triangle. A plurality of back reinforcing steel strips (31) each having a ladder-shaped rising portion (30) that fits between the ridge (25) and the inverted L-shaped portion (23) and the rising edge (22) are formed on the left and right cloth materials. Since it is crossed over the lower horizontal portion and welded orthogonally to each lower horizontal portion of the left and right cloth materials and the downward projection (25) of the cross-sectional triangle, the back reinforcing steel strip (31) The weight increased, and the labor for welding the back reinforcing steel strip (31) and the inspection and repair of the welded portion were required.

特開２００２−１２８２２号公報JP 2002-12822 A

解決しようとする問題点は、足場板にねじれ防止用の裏補強鋼帯を溶接することによる重量増加および溶接の手間および溶接部分の点検・修理を必要とする点にある。   The problem to be solved is that the weight is increased by welding a back reinforcing steel strip for preventing torsion to the scaffolding plate, and the labor of welding and inspection / repair of the welded portion are required.

本発明の目的は、溶接の必要な裏補強鋼帯が存在しなくても足場板にねじれを生じることがなくかつ床材の変形がないようにし、裏補強鋼帯のない分従来品より軽量化し得、運搬および取扱いに便利な足場板を提供することにある。 The object of the present invention is to prevent the scaffold plate from being twisted even if there is no back reinforcing steel strip that needs to be welded and to prevent the flooring from being deformed. It is an object of the present invention to provide a scaffold plate that can be converted into a convenient and easy to carry and handle.

請求項１の発明による足場板は、所定幅および所定長さを有する長方形の平らな鋼板が、両側下方に横断面U形部を形成するように折曲げられるとともに、各U形部の外側壁上縁に続いてU形部の上開口を覆い同内側壁上縁に至る水平部およびこの水平部から同内側壁全面に重なって二重壁をつくる垂下部を形成するように折曲げられることにより、主構成部材が形成せられ、主構成部材の両側の二重壁を含むU形部が布材となされるとともに、主構成部材の両側U形部の上開口を覆う水平部および両側U形部の内側壁上縁どうし間の水平部が合わせて床材となされ、横断面コ形のはり材が主構成部材の前後端に嵌め被せられかつ溶接せられているものである。   A scaffold plate according to the invention of claim 1 is formed by bending a rectangular flat steel plate having a predetermined width and a predetermined length so as to form a U-shaped cross section at the lower side of each side, and an outer wall of each U-shaped portion. Folded to form a horizontal part that covers the upper opening of the U-shaped part following the upper edge and reaches the upper edge of the inner side wall, and a drooping part that overlaps the entire inner side wall from this horizontal part to form a double wall. Thus, the main component is formed, and the U-shaped portion including the double walls on both sides of the main component is formed into the cloth material, and the horizontal portion and the both sides U that cover the upper openings of the both U-shaped portions of the main component. The horizontal portion between the upper edges of the inner side walls of the shape portion is combined to form a floor material, and a beam material having a U-shaped cross section is fitted on the front and rear ends of the main component and welded.

請求項２の発明は、請求項１記載の足場板において、各横断面U形部の外側壁が外方に傾斜せしめられているものである。   According to a second aspect of the present invention, in the scaffold plate of the first aspect, the outer wall of each U-shaped cross section is inclined outward.

請求項３の発明は、請求項１または２記載の足場板において、横断面U形部間の水平部に少なくとも１つの横断面三角形の下向き突条が折曲げ形成せられているものである。   According to a third aspect of the present invention, in the scaffold plate according to the first or second aspect, at least one downwardly extending triangular protrusion is bent at a horizontal portion between the U-shaped sections.

請求項４の発明は、請求項３記載の足場板において、横断面U形部間の水平部下面と横断面三角形の下向き突条との間に水平部から直下に折曲げられて２重になった垂直部が介在せられているものである。   According to a fourth aspect of the present invention, there is provided a scaffold plate according to the third aspect, wherein the scaffold plate is doubled by being bent directly below the horizontal portion between the lower surface of the horizontal portion between the U-shaped portions of the cross section and the downward protrusion of the triangular cross section. The vertical part which has become is interposed.

請求項１の発明によれば、足場板にはその長さ方向にのびた横断面二重壁を含むU形部が２つ存在しているので、裏補強鋼帯がなくても全体として、ねじれおよびに対して強い構造となっており、それだけ軽量化でき、運搬および取り扱いに便利である。また、裏補強鋼帯を溶接するための手間および溶接部分の点検・修理が不必要となった。   According to the first aspect of the present invention, the scaffold plate has two U-shaped portions including a double wall extending in the longitudinal direction, so that the torsion is twisted as a whole even without the back reinforcing steel strip. It is a strong structure against and, so that it can be lighter and convenient for transportation and handling. In addition, the labor for welding the back reinforcing steel strip and the inspection / repair of the welded portion are unnecessary.

請求項２の発明によれば、各横断面U形部の外側壁が外方に傾斜せしめられているから、横断面U形部が布材となされたさい、横方向から衝撃が加わったときに、その外側壁が垂直である場合よりも衝撃が逃げやすくなる。   According to the invention of claim 2, since the outer wall of each U-shaped section is inclined outward, the impact is applied from the lateral direction when the U-shaped section is made of cloth. In addition, the impact is easier to escape than when the outer wall is vertical.

請求項３の発明によれば、足場板の長さ方向にのびた横断面U形部に加え、さらに横断面U形部間の水平部に少なくとも１つの横断面三角形の下向き突条が折曲げ形成せられて足場板の長さ方向にのびているから、足場板のねじれに対して一層強い構造となる。   According to the invention of claim 3, in addition to the transverse section U-shaped portion extending in the length direction of the scaffolding plate, the downward projection of the at least one transverse section triangle is formed at the horizontal portion between the transverse section U-shaped portions. Since it is extended in the length direction of the scaffolding plate, the structure becomes stronger against the twisting of the scaffolding plate.

請求項４の発明によれば、横断面U形部間の水平部下面と横断面三角形の下向き突条との間に水平部から直下に折曲げられて２重になった垂直部が介在せられているから、床板の変形に対して一層強い構造となる。   According to the invention of claim 4, the double vertical portion bent from the horizontal portion directly below is interposed between the lower surface of the horizontal portion between the U-shaped cross-section and the downward protrusion of the cross-sectional triangle. Therefore, the structure is stronger against deformation of the floorboard.

本発明を実施するための最良の形態を、以下図面を参照して説明する。   The best mode for carrying out the present invention will be described below with reference to the drawings.

図１および図２に示す足場板(A)は、所定幅および所定長さを有する長方形の平らな鋼板が、両側下方に横断面U形部(１)(２)を形成するように折曲げられるとともに、各U形部(１)(２) の外側壁(３)(４)上縁に続いてU形部(１)(２) の上開口を覆い同内側壁(５) (６)上縁に至る水平部(７) (８) およびこの水平部(７) (８) から同内側壁(５) (６)全面に重なって二重壁をつくる垂下部(９) (１０)を形成するように折曲げられることにより、主構成部材(１１)が形成せられ、主構成部材(１１)の両側の二重壁を含むU形部(１)(２) が布材となされるとともに、主構成部材(１１)の両側U形部(１)(２) の上開口を覆う水平部(７) (８) および両側U形部(１)(２) の内側壁(５) (６) 上縁どうし間の水平部(１２)が合わせて床材となされ、横断面コ形で両側壁(１３)(１４) を有するはり材(１５)が主構成部材(１１)の前後端に嵌め被せられかつ溶接せられている。   The scaffold plate (A) shown in FIGS. 1 and 2 is bent so that a rectangular flat steel plate having a predetermined width and a predetermined length forms U-shaped sections (1) and (2) in the lower side of both sides. And the inner wall (5) (6) covering the upper opening of the U-shaped part (1) (2) following the upper edge of the outer wall (3) (4) of each U-shaped part (1) (2). The horizontal part (7) (8) leading to the upper edge and the hanging part (9) (10) that overlaps the entire inner wall (5) (6) from the horizontal part (7) (8) to form a double wall. The main component member (11) is formed by being bent so as to form, and the U-shaped portions (1) and (2) including double walls on both sides of the main component member (11) are used as the cloth material. At the same time, a horizontal part (7) (8) covering the upper opening of both side U-shaped parts (1) and (2) of the main component (11) and an inner wall (5) ( 6) The horizontal portion (12) between the upper edges is combined to form a flooring, and has a U-shaped cross section and has both side walls (13) (14). A beam member (15) is fitted and welded to the front and rear ends of the main component (11).

上記両側U形部 (１)(２) 間の水平部(１)には、１つの横断面三角形の下向き突条(１６)が折曲げ形成せられている。この横断面三角形の下向き突条(１６)は１つに限らす、複数あってもよい。両側U形部(１)(２)間の水平部(１３)には、横断面三角形の下向き突条(１６)がある方が強度上好ましいが、これはなくてもよい。   In the horizontal portion (1) between the U-shaped portions (1) and (2) on both sides, a downward projecting ridge (16) having a triangular cross section is formed. The number of downward protrusions (16) of the cross-sectional triangle is not limited to one and may be plural. Although it is preferable in terms of strength that the horizontal portion (13) between the U-shaped portions (1) and (2) on both sides has a downward protrusion (16) having a triangular cross section, this may be omitted.

図２に示す足場板(A)のU形部(１)(２)の外側壁(３)(４)およびはり材(１５)の両側壁(１３)(１４)は外方に傾斜せしめられているが、図３に示す足場板(B)のように、U形部(１)(２)の外側壁(１７)(１８) およびはり材(１５)の両側壁(１９)(２０)は内側壁(５)(６)と同様垂直でもよい。   The outer walls (3) and (4) of the U-shaped part (1) and (2) of the scaffold plate (A) shown in FIG. 2 and both side walls (13) and (14) of the beam member (15) are inclined outward. However, like the scaffolding plate (B) shown in FIG. 3, the outer walls (17) and (18) of the U-shaped portions (1) and (2) and both side walls (19) and (20) of the beam member (15). May be perpendicular to the inner walls (5) and (6).

また、図４に示す足場板(C)は、水平部(１３) 下面と横断面三角形の下向き突条(１６)との間に水平部(１３)から直下に折曲げられて２重になった垂直部(１９)が介在せられ、横断面三角形の下向き突条(１６)の水平部の端部がはり材(１５)に溶接されているものであり、足場板(C)のねじれおよび床材の変形に対して一層強い構造となっている。   Further, the scaffold plate (C) shown in FIG. 4 is doubled by being bent right below from the horizontal portion (13) between the lower surface of the horizontal portion (13) and the downward projection (16) of the triangular cross section. The vertical portion (19) is interposed, and the end of the horizontal portion of the downward projection (16) of the triangular triangle is welded to the beam member (15), and the scaffold plate (C) is twisted and The structure is stronger against deformation of the flooring.

なお、図１の足場板(A)は、図示の便宜上に短く示されているが、実際は長尺のものである。   The scaffold plate (A) in FIG. 1 is shown briefly for convenience of illustration, but is actually a long one.

本発明の実施形態の１例を示す一部を切り欠いた斜視図である。It is the perspective view which notched a part which shows an example of embodiment of this invention. 図１のII−II線にそう拡大断面図である。FIG. 2 is an enlarged cross-sectional view taken along line II-II in FIG. 1. 図１の実施形態の変形例を示す図２対応断面図である。FIG. 3 is a cross-sectional view corresponding to FIG. 2 illustrating a modification of the embodiment of FIG. 図１の実施形態のさらに他の変形例を示す図２対応断面図である。FIG. 9 is a cross-sectional view corresponding to FIG. 2, showing still another modification of the embodiment of FIG. 1. 従来の足場板を示す図１対応斜視図である。It is a perspective view corresponding to FIG. 1 which shows the conventional scaffold board.

符号の説明Explanation of symbols

（A）（B）（C） 足場板
（１）（２） 横断面U形部
（３）（４）(１７) (１８) U形部の外側壁
（５）(６） U形部の内側壁
(７) (８) 両U形部の上開口を覆う水平部
(９) (1０) U形部の内側壁全面に重なって二重壁をつくる垂下部
(１１) 主構成部材
(１２) 両側U形部の内側壁上縁どうし間の水平部
（１５） はり材
（１６） 横断面三角形の下向き突条
（１９） 水平部から真下に折り曲げられて二重になった垂直部 (A) (B) (C) Scaffold plate (1) (2) Cross section U-shaped part (3) (4) (17) (18) U-shaped outer wall (5) (6) U-shaped part Inner wall
(7) (8) Horizontal part covering the upper opening of both U-shaped parts
(9) (10) A hanging part that overlaps the entire inner wall of the U-shaped part to create a double wall
(11) Main components
(12) Horizontal part between the upper edges of the inner side walls of both U-shaped parts (15) Beam material (16) Downward projecting ridge (19) Vertical part bent double down from the horizontal part

Claims (4)

所定幅および所定長さを有する長方形の平らな鋼板が、両側下方に横断面U形部を形成するように折曲げられるとともに、各U形部の外側壁上縁に続いてU形部の上開口を覆い同内側壁上縁に至る水平部およびこの水平部から同内側壁全面に重なって二重壁をつくる垂下部を形成するように折曲げられることにより、主構成部材が形成せられ、主構成部材の両側の二重壁を含むU形部が布材となされるとともに、主構成部材の両側U形部の上開口を覆う水平部および両側U形部の内側壁上縁どうし間の水平部が合わせて床材となされ、横断面コ形のはり材が主構成部材の前後端に嵌め被せられかつ溶接せられている足場板。   A rectangular flat steel plate having a predetermined width and a predetermined length is bent so as to form a U-shaped cross section at the lower side of each side, and above the upper edge of the outer wall of each U-shaped portion. A main component is formed by folding the horizontal portion that covers the opening to reach the upper edge of the inner side wall and the drooping portion that overlaps the entire inner side wall from the horizontal portion to form a double wall, The U-shaped part including double walls on both sides of the main component is made into a cloth material, and between the horizontal part covering the upper opening of the U-shaped part on both sides of the main component and the upper edge of the inner side wall of both U-shaped parts A scaffold plate in which horizontal portions are combined into a floor material, and a beam material having a U-shaped cross section is fitted on and welded to the front and rear ends of the main component. 各横断面U形部の外側壁が外方に傾斜せしめられている請求項１記載の足場板。   The scaffolding plate according to claim 1, wherein the outer wall of each U-shaped cross section is inclined outward. 横断面U形部間の水平部に少なくとも１つの横断面三角形の下向き突条が折曲げ形成せられている請求項１または２記載の足場板。   The scaffolding board according to claim 1 or 2, wherein a downward projecting ridge of at least one cross-sectional triangle is bent and formed at a horizontal portion between the U-shaped sections. 横断面U形部間の水平部下面と横断面三角形の下向き突条との間に水平部から直下に折曲げられて２重になった垂直部が介在せられている請求項３記載の足場板。   4. A scaffold according to claim 3, wherein a double vertical portion bent from the horizontal portion and directly below is interposed between the lower surface of the horizontal portion between the U-shaped cross sections and the downward projection of the triangular cross section. Board.
JP2008269663A 2008-10-20 2008-10-20 Scaffolding board Expired - Fee Related JP4247563B1 (en)

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JP6018558B2 (en) * 2013-10-02 2016-11-02 シグノード株式会社 Temporary structure
KR102159762B1 (en) * 2020-05-12 2020-09-24 (주)푸른중공업 Scaffolding for construction

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