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JP7011798B1 - How to fix fixtures and scaffolding boards - Google Patents

How to fix fixtures and scaffolding boards Download PDF

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Publication number
JP7011798B1
JP7011798B1 JP2020128214A JP2020128214A JP7011798B1 JP 7011798 B1 JP7011798 B1 JP 7011798B1 JP 2020128214 A JP2020128214 A JP 2020128214A JP 2020128214 A JP2020128214 A JP 2020128214A JP 7011798 B1 JP7011798 B1 JP 7011798B1
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metal fitting
scaffolding
protrusion
single tube
lower metal
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JP2022025411A (en
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健三 小川
伸 鈴木
裕太 服部
健一 中山
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Toshiba Plant Systems and Services Corp
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Abstract

【課題】足場板を固定する際の作業性がよく、足場で作業者が安心して安全に作業を行えるようにする。【解決手段】足場板を単管に固定する固定具であって、足場板の上方から足場板の上面に掛止される掛止部と、掛止部に接続され足場板の側縁に沿って配置される平板部と、平板部の下部に下方に向けて単管を両側から挟むように突設された第1突出部および第2突出部とを有する上部金具と、第1突出部に回転可能に支持される第3突出部と、第2突出部に係合する第4突出部とを上側に向けて、互いの突出部の間に単管を挟んで支持するように突設した下部金具と、第2突出部に回動自在に係止されたボルト部と、ボルト部に螺合されたナットと、下部金具の底部に形成された係止用切り欠き部とを備えたロック機構とを具備する。【選択図】図2PROBLEM TO BE SOLVED: To provide a good workability when fixing a scaffold plate, and to enable a worker to work safely and with peace of mind on the scaffold. SOLUTION: This is a fixture for fixing a scaffolding plate to a single pipe, and has a hooking portion that is hooked on the upper surface of the scaffolding board from above the scaffolding board, and a hooking portion that is connected to the hooking portion and is connected along a side edge of the scaffolding board. On the flat plate portion to be arranged, the upper metal fitting having the first protruding portion and the second protruding portion protruding downward so as to sandwich the single tube downward from the lower portion of the flat plate portion, and the first protruding portion. The third protrusion that is rotatably supported and the fourth protrusion that engages with the second protrusion are directed upward, and a single tube is sandwiched between the protrusions to support the third protrusion. A lock with a lower bracket, a bolt portion rotatably locked to the second protrusion, a nut screwed into the bolt portion, and a locking notch formed at the bottom of the lower bracket. It is equipped with a mechanism. [Selection diagram] Fig. 2

Description

本発明の実施形態は、固定具および足場板の固定方法に関する。 Embodiments of the present invention relate to a fixing method and a method for fixing a scaffold plate .

例えばビルなどの建造物の外壁や外壁に設けられている配管などを定期点検する際や修繕工事を行う際には、仮設足場を設置した上で作業が行われる。 For example, when regularly inspecting the outer wall of a building or other building or the piping provided on the outer wall, or when performing repair work, work is performed after installing temporary scaffolding.

仮設足場を設置する際に、水平方向に配置した足場パイプに金属製の足場板を固定するのは番線であり、作業としては、足場板に設けられている孔に番線を通して下の足場パイプを固縛することになる。 When installing a temporary scaffold, it is the number line that fixes the metal scaffolding plate to the horizontally arranged scaffolding pipe, and as a work, pass the number line through the hole provided in the scaffolding plate and insert the lower scaffolding pipe. It will be tied up.

このように番線を用いた固縛作業は熟練を要する上、番線の末端処理を徹底しないと作業服に引っ掛けて服が破けたり作業者が怪我をすることがある。 In this way, the lashing work using the wire requires skill, and if the end treatment of the wire is not thoroughly performed, the clothes may be torn or the worker may be injured by being caught in the work clothes.

そこで、近年では、番線に代わる仮設足場の固定具として、固定金具本体に、半円弧状の単管挟着用切欠を形成した単管挟着用片を、スプリングを介して閉塞方向に付勢するように取り付けたものや(例えば特許文献1参照)、足場板の側面下側で足場パイプを挟持し足場板上面でベルトにより固定する挟持構造の固定具(例えば特許文献2参照)、下側が開放されたアームとこのアームに回動自在に支持されたクランプレバーとで足場パイプを挟持し足場板の上面に渡した押え板で足場板を固定する構造のレバー足場板クランプ(例えば特許文献3参照)などが発案されている。 Therefore, in recent years, as a fixing tool for temporary scaffolding instead of the number wire, a single-tube sandwiching piece having a semi-arc-shaped single-tube sandwiching notch formed on the fixing bracket body is urged in the closing direction via a spring. (For example, see Patent Document 1), a fixture having a holding structure that holds the scaffolding pipe under the side surface of the scaffolding plate and is fixed by a belt on the upper surface of the scaffolding plate (see, for example, Patent Document 2), and the lower side is opened. A lever scaffolding plate clamp having a structure in which a scaffolding pipe is sandwiched between an arm and a clamp lever rotatably supported by the arm and the scaffolding plate is fixed by a holding plate passed over the upper surface of the scaffolding plate (see, for example, Patent Document 3). Etc. have been proposed.

特開平09-228629号公報Japanese Unexamined Patent Publication No. 09-228629 特開平07-109833号公報Japanese Unexamined Patent Publication No. 07-109833 特開平05-033481号公報Japanese Unexamined Patent Publication No. 05-033481

しかしながら、上記特許文献1に記載の固定金具の場合、単管挟着用片をスプリングで付勢して単管を挟持するだけのため、外れはしないものの作業者の中には外れることを懸念し足場の作業に不安を感じる者がいた。 However, in the case of the fixing bracket described in Patent Document 1, since the single tube pinching piece is only urged by a spring to pinch the single tube, there is a concern that it will not come off, but some workers will come off. Some people were worried about the work of the scaffolding.

また、上記特許文献2、3に記載の固定具やクランプの場合、単管への取り付け作業と足場板の上面にベルトや押え板を取り回す作業が必要になり、作業性が悪く、足場板の固定に時間を要するとともに、足場板の上面にベルトや押え板が渡されるため、従来の番線同様に作業者が足場での作業中につまづく恐れがあるという問題があった。さらに、近年は複数種の金属製の足場板が出回っており、例えば厚さの異なる足場板にも対応可能とすることも求められている。 Further, in the case of the fixtures and clamps described in Patent Documents 2 and 3, it is necessary to attach the scaffold to a single pipe and to route a belt or a holding plate on the upper surface of the scaffold plate, resulting in poor workability and the scaffold plate. Since it takes time to fix the scaffolding and the belt and the holding plate are passed to the upper surface of the scaffolding plate, there is a problem that the worker may trip over the scaffolding while working on the scaffolding as in the conventional track. Further, in recent years, a plurality of types of metal scaffolding boards have been on the market, and it is also required to be able to handle scaffolding boards having different thicknesses, for example.

本発明が解決しようとする課題は、足場板を固定する際の作業性がよく、足場で作業者が安心して安全に作業を行うことができる固定具および足場板の固定方法を提供することにある。 The problem to be solved by the present invention is to provide a fixing tool and a scaffolding board fixing method which have good workability when fixing the scaffolding board and allow an operator to work safely and securely on the scaffolding. be.

実施形態の固定具は、固定された単管の上に単管の軸と直交する方向に長手方向を向けて載置した足場板を単管に固定する固定具であって、前記足場板の上方から足場板の上面に掛止される掛止部と、前記掛止部に接続され足場板の側縁に沿って配置される平板部と、前記平板部の下部に下方に向けて前記単管を両側から挟むように突設された第1突出部および第2突出部とを有する上部金具と、前記第1突出部に回転可能に支持される第3突出部と、前記第2突出部に係合する第4突出部とを上側に向けて、互いの突出部の間に前記単管を挟んで支持するように突設した下部金具と、前記第2突出部と前記第4突出部との係合状態をロックおよびアンロック可能に設けられたロック機構とを具備し、前記ロック機構は、前記第2突出部に回動自在に係止されたボルト部と、当該ボルト部に螺合されたナットと、前記下部金具の底部に形成された係止用切り欠き部とを備え、前記ボルト部を前記係止用切り欠き部に引っ掛け、前記ナットを締めることによって係合状態をロックし、前記第1突出部と、前記第3突出部とは、これらを回転可能に支持する回転軸に軸支され、前記第1突出部には、前記回転軸の位置を変更可能とする屈曲した長穴状の透孔が形成されているThe fixing tool of the embodiment is a fixing tool for fixing a scaffolding plate placed on a fixed single pipe with the longitudinal direction oriented in a direction orthogonal to the axis of the single pipe to the single pipe, and is a fixing tool of the scaffolding plate. A hooking portion that is hooked on the upper surface of the scaffolding plate from above, a flat plate portion that is connected to the hooking portion and is arranged along the side edge of the scaffolding plate, and a single plate portion that is directed downward toward the lower portion of the flat plate portion. An upper metal fitting having a first projecting portion and a second projecting portion projecting so as to sandwich the tube from both sides, a third projecting portion rotatably supported by the first projecting portion, and the second projecting portion. A lower metal fitting projecting so as to support the single tube by sandwiching the single tube between the protruding portions, the second protruding portion and the fourth protruding portion, with the fourth protruding portion engaged with the above facing upward. It is provided with a lock mechanism provided so as to be able to lock and unlock the engagement state with the bolt portion, and the lock mechanism includes a bolt portion rotatably locked to the second protruding portion and a screw portion screwed to the bolt portion. The engaged nut is provided with a locking notch formed at the bottom of the lower metal fitting, the bolt portion is hooked on the locking notch portion, and the engaged state is locked by tightening the nut. The first protrusion and the third protrusion are pivotally supported by a rotation shaft that rotatably supports them, and the first protrusion is bent so that the position of the rotation shaft can be changed. A long hole-shaped through hole is formed .

実施形態に係る仮設足場の構成を示す斜視図。The perspective view which shows the structure of the temporary scaffold which concerns on embodiment. 実施形態に係る固定具を側方から見た場合の構成を示す図。The figure which shows the structure when the fixture which concerns on embodiment is seen from the side. 実施形態に係る固定具を前方から見た場合の構成を示す一部断面図。A partial cross-sectional view showing a configuration when the fixture according to the embodiment is viewed from the front. 組立て前の上部金具の上面図。Top view of the upper metal fittings before assembly. 組立て前の上部金具の側面図。Side view of the upper metal fitting before assembly. 組立て前の下部金具の上面図。Top view of the lower bracket before assembly. (a)はボルト部の上面図、(b)はボルト部の側面図。(A) is a top view of the bolt portion, and (b) is a side view of the bolt portion. 図7(b)から90°回転下方向から見たボルト部の側面図。A side view of the bolt portion seen from the downward direction rotated by 90 ° from FIG. 7 (b). 実施形態に係る固定具の取り付け方法を説明するための図。The figure for demonstrating the attachment method of the fixture which concerns on embodiment. 実施形態に係る固定具の取り付け方法を説明するための図。The figure for demonstrating the attachment method of the fixture which concerns on embodiment. 端部用の組立て前の上部金具の上面図。Top view of the upper bracket for the end before assembly. 端部用の組立て前の下部金具の上面図。Top view of the lower bracket before assembly for the end. 他の実施形態に係る組立て前の下部金具の側面図。Side view of the lower metal fitting before assembly according to another embodiment.

以下、図面を参照して、実施形態を詳細に説明する。図1は一つの実施の形態の仮設足場の構成を示す斜視図である。 Hereinafter, embodiments will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing the configuration of a temporary scaffold of one embodiment.

図1に示すように、実施形態の仮設足場10は、略垂直方向に配置された複数の単管足場パイプ11、略水平方向(横方向)に配置された複数の単管足場パイプ(以下「横足場パイプ」という)12および斜め方向に配置された複数の単管足場パイプ13によってそれぞれ組み合わされるとともに、所定高さに配置された複数の横足場パイプ12上に橋架された金属製の足場板21、22、単管足場パイプ11に固定されたつまさき板14を備える。この仮設足場10では横足場パイプ12は一定の方向(横方向)に並べて固定されている。これらの単管足場パイプは「単管」の一つである。 As shown in FIG. 1, the temporary scaffolding 10 of the embodiment includes a plurality of single-tube scaffolding pipes 11 arranged in a substantially vertical direction, and a plurality of single-tube scaffolding pipes arranged in a substantially horizontal direction (horizontal direction) (hereinafter, "" Metal scaffolding plates combined by (referred to as "horizontal scaffolding pipes") 12 and a plurality of single-tube scaffolding pipes 13 arranged in an oblique direction, and bridged over a plurality of horizontal scaffolding pipes 12 arranged at predetermined heights. 21, 22, the scaffolding plate 14 fixed to the single pipe scaffolding pipe 11 is provided. In this temporary scaffold 10, the horizontal scaffold pipes 12 are arranged and fixed in a certain direction (horizontal direction). These single pipe scaffolding pipes are one of the "single pipes".

金属製の足場板21、22は、建造物への作業に適した高さ、この例では、例えば図1の地面から3段目(下から3段目)の横足場パイプ12上に複数箇所配置されている。これらの足場板21、22は、資材の運搬、載置や作業者の往来、高所への移動などを可能としている。 The metal scaffolding plates 21 and 22 have a height suitable for working on a building. In this example, for example, at a plurality of locations on the horizontal scaffolding pipe 12 at the third stage (third stage from the bottom) from the ground in FIG. Have been placed. These scaffolding boards 21 and 22 enable the transportation of materials, the placement of materials, the traffic of workers, and the movement to high places.

なお、足場板21、22は、橋架された複数の横足場パイプ12の配列方向を、足場板21、22の長手方向(紙面の厚さ方向)とし、横足場パイプ12の軸方向を、足場板20の短手方向(紙面の左右方向)とする。つまり、横足場パイプ12は、橋架した複数本の横足場パイプ12の上に横足場パイプ12の軸と直交する方向に足場板21の長手方向を向けて足場板21を載置し足場とするものである。 For the scaffolding plates 21 and 22, the arrangement direction of the plurality of bridged horizontal scaffolding pipes 12 is the longitudinal direction of the scaffolding plates 21 and 22 (the thickness direction of the paper surface), and the axial direction of the horizontal scaffolding pipes 12 is the scaffolding. The direction of the side of the board 20 (the left-right direction of the paper surface). That is, the horizontal scaffolding pipe 12 is used as a scaffold by placing the scaffolding plate 21 on a plurality of bridged horizontal scaffolding pipes 12 with the longitudinal direction of the scaffolding plate 21 facing in a direction orthogonal to the axis of the horizontal scaffolding pipe 12. It is a thing.

図2、図3は、図1に示した足場板21、22を横足場パイプ12に固定するための固定具40の構成を示す図であり、図2は、固定具40を側方から見た場合の構成を示し、図3は前方(図2の右側)から見た場合の構成を一部断面として示した図である。図2、図3に示すように、固定具40は、厚みが例えば2.3mmの1枚の鋼板を型抜きし屈曲させた上部金具45と下部金具47とを有する。 2 and 3 are views showing the configuration of the fixing tool 40 for fixing the scaffolding plates 21 and 22 shown in FIG. 1 to the horizontal scaffolding pipe 12, and FIG. 2 is a view showing the fixing tool 40 from the side. FIG. 3 is a diagram showing a configuration when viewed from the front (right side of FIG. 2) as a partial cross section. As shown in FIGS. 2 and 3, the fixture 40 has an upper metal fitting 45 and a lower metal fitting 47 obtained by die-cutting and bending a single steel plate having a thickness of, for example, 2.3 mm.

図3に示すように、足場板21と足場板22は、並設されており、金属製の板材からなる足場板本体21a、22aの側縁部に内側に巻き込むように屈曲加工された側縁部(側面21b、底面21c、突出面21dなど)が設けられている。足場板本体21a、22aの側縁部は、長手方向に沿って板金を下方向に断面コ字形状にそれぞれ折り曲げて形成したものである。 As shown in FIG. 3, the scaffolding plate 21 and the scaffolding plate 22 are arranged side by side, and the side edges are bent so as to be rolled inward around the side edges of the scaffolding plate bodies 21a and 22a made of a metal plate material. A portion (side surface 21b, bottom surface 21c, protruding surface 21d, etc.) is provided. The side edges of the scaffolding plate bodies 21a and 22a are formed by bending the sheet metal downward along the longitudinal direction into a U-shaped cross section.

足場板21、22の各側面21b,22bは、横足場パイプ12へ載置される脚部としての機能をそれぞれ有する。 Each of the side surfaces 21b and 22b of the scaffolding plates 21 and 22 has a function as a leg portion mounted on the horizontal scaffolding pipe 12.

固定具40は、横足場パイプ12の上に横足場パイプ12の軸の方向と直交する方向に長手方向を向けて載置した足場板21、22を横足場パイプ12に固定する足場板固定金具である。 The fixture 40 is a scaffolding plate fixing bracket for fixing the scaffolding plates 21 and 22 placed on the horizontal scaffolding pipe 12 in the direction perpendicular to the axial direction of the horizontal scaffolding pipe 12 in the longitudinal direction. Is.

図4は固定具40を構成する組立て前の上部金具45の上面図であり、図5は側面図である。これらの図にも示すように、上部金具45は、機能別に分けると、上部の掛止部としての押え金具45a、45b、中部の平板部45c、下部の第1突出部45dおよび第2突出部45fなどにより構成される。 FIG. 4 is a top view of the upper metal fitting 45 before assembly constituting the fixture 40, and FIG. 5 is a side view. As shown in these figures, the upper metal fittings 45 are divided by function, the pressing metal fittings 45a and 45b as the upper hooking portions, the flat plate portion 45c in the middle portion, the first protruding portion 45d and the second protruding portion in the lower portion. It is composed of 45f and the like.

上部の押え金具45a、45bは、平板部45cに対して互いに反対方向に直角に折り曲げて形成されている。図3に示すように、押え金具45aは、足場板21の上方から足場板本体21aの上面に掛止される。押え金具45bは、足場板22の上方から足場板本体22aの上面に掛止される。この例のように2つの足場板21、22の間に固定具40を介在させることで、2枚の足場板21、22を同時に固定できる。この2枚の足場板21、22のケース以外に、例えば端の足場板に固定具40を使用する場合は、押え金具45a、45bのうち足場板に沿う側に屈曲した押え金具を使用することができるが、この点については後述する。 The upper holding metal fittings 45a and 45b are formed by being bent at right angles to the flat plate portion 45c in opposite directions. As shown in FIG. 3, the holding metal fitting 45a is hooked on the upper surface of the scaffolding plate main body 21a from above the scaffolding plate 21. The presser foot fitting 45b is hooked on the upper surface of the scaffolding plate main body 22a from above the scaffolding plate 22. By interposing the fixture 40 between the two scaffolding plates 21 and 22 as in this example, the two scaffolding plates 21 and 22 can be fixed at the same time. In addition to the cases of these two scaffolding plates 21 and 22, for example, when the fixture 40 is used for the scaffolding plate at the end, the holding metal fittings 45a and 45b that are bent toward the side along the scaffolding plate should be used. However, this point will be described later.

中部の平板部45cは、押え金具45a、45bに接続(連結)されており、足場板21の側面21bと足場板22の側面22bとの間に(足場板21、22の側縁に沿って)配置される。下部の第1突出部45dおよび第2突出部45fは、平板部45cの下部に下方に向けて、横足場パイプ12を両側から挟むように突設されている。第1突出部45dおよび第2突出部45fとの間には、横足場パイプ12に当接される半円弧状の切り欠き部が形成されている。 The flat plate portion 45c in the central portion is connected (connected) to the holding metal fittings 45a and 45b, and is between the side surface 21b of the scaffolding plate 21 and the side surface 22b of the scaffolding plate 22 (along the side edges of the scaffolding plates 21 and 22). ) Be placed. The first protruding portion 45d and the second protruding portion 45f at the lower portion are projected downward from both sides of the horizontal scaffolding pipe 12 toward the lower portion of the flat plate portion 45c. A semicircular notch that abuts on the horizontal scaffolding pipe 12 is formed between the first protrusion 45d and the second protrusion 45f.

第1突出部45dには、下部金具47を例えば、ブラインドリベット等によるリベット止めなどで回転自在に支持するための透孔45eが形成されている。本実施形態において、回転軸となるリベットを通すための透孔45eは、円孔ではなく、猪目に近似した屈曲した長穴状の形状とされている。これによって、回転軸となるリベットの位置を上下方向に変更可能として、異なる厚さ(例えば,厚さ27mm~42mm程度の範囲)の足場板21、22等に対応可能となっている。一方、第2突出部45fには、後述するロック機構を構成するボルト部を回動自在に支持するための円孔45gが形成されている。 The first protruding portion 45d is formed with a through hole 45e for rotatably supporting the lower metal fitting 47 by, for example, riveting with a blind rivet or the like. In the present embodiment, the through hole 45e for passing the rivet, which is the axis of rotation, is not a circular hole but a curved elongated hole shape similar to a grain. As a result, the position of the rivet serving as the rotation axis can be changed in the vertical direction, and it is possible to handle scaffolding plates 21 and 22 having different thicknesses (for example, a thickness in the range of about 27 mm to 42 mm). On the other hand, the second protruding portion 45f is formed with a circular hole 45g for rotatably supporting the bolt portion constituting the lock mechanism described later.

下部金具47は、1枚の鋼板を型抜きして上方向に折り曲げ加工した金具であり、機能別に分けると、対向して配置された2枚の一対の板状部材としての側板47a、48aと、これら側板47a、48aを対称に保持するように一対の側板47a、48aの下部を接続及び支持する接続部材としての底板46と、この底板46から上方に直角に折り曲げられた規制部としての規制金具49を有する。 The lower metal fitting 47 is a metal fitting obtained by die-cutting one steel plate and bending it upward. When classified according to function, the lower metal fitting 47 and the side plates 47a and 48a as a pair of plate-shaped members arranged opposite to each other. The bottom plate 46 as a connecting member that connects and supports the lower portions of the pair of side plates 47a and 48a so as to hold the side plates 47a and 48a symmetrically, and the regulation as a regulating portion bent upward at a right angle from the bottom plate 46. It has a metal fitting 49.

図3に示すように規制金具49は、上端に規制面49aを有する。規制面49aは、下部金具47が上部金具45に係合した状態で足場板21,22の側縁部の突出面21d,22dの内側に隙間を設けて配置される。規制面49aは、足場板21,22の横ずれ(横足場パイプ12軸方向のずれ)を規制するものであり、足場板本体21a,22aが横にずれたときに、押え金具45a,45bが足場板本体21a,22aから外れないように常に固定できる状態を保持する幅H3で設けられている。すなわち、規制金具49は、下部金具47と上部金具45とで横足場パイプ12を挟持した状態で足場板21,22の対向する側面の突出面21d,22dに対向して配置される。 As shown in FIG. 3, the regulating metal fitting 49 has a regulating surface 49a at the upper end thereof. The regulation surface 49a is arranged with a gap provided inside the protruding surfaces 21d and 22d of the side edges of the scaffolding plates 21 and 22 in a state where the lower metal fitting 47 is engaged with the upper metal fitting 45. The regulation surface 49a regulates lateral displacement of the scaffolding plates 21 and 22 (displacement in the 12-axis direction of the horizontal scaffolding pipe), and when the scaffolding plate main bodies 21a and 22a are laterally displaced, the holding metal fittings 45a and 45b are used as scaffolding. It is provided with a width H3 that holds a state in which it can always be fixed so as not to come off from the plate bodies 21a and 22a. That is, the regulating metal fitting 49 is arranged so as to face the protruding surfaces 21d and 22d on the opposite side surfaces of the scaffolding plates 21 and 22 with the horizontal scaffolding pipe 12 sandwiched between the lower metal fitting 47 and the upper metal fitting 45.

側板47aと、これと対向する側板48aとは同じ形状である。以下、図2の側面図で見える側(片側)の側板47aについて説明する。側板47aは、図2中左側の第3突出部47b、右側の第4突出部47c、これら突出部の間の中部47dを有する。 The side plate 47a and the side plate 48a facing the side plate 47a have the same shape. Hereinafter, the side plate 47a on the side (one side) visible in the side view of FIG. 2 will be described. The side plate 47a has a third protrusion 47b on the left side in FIG. 2, a fourth protrusion 47c on the right side, and a middle portion 47d between these protrusions.

第3突出部47bと第4突出部47cは、上側に向けて、互いの突出部の間に横足場パイプ12を挟んで下から支持するように下部金具47に突設されている。組立て前の下部金具47の上面構成を示す図6に示されるように、第3突出部47bは、側板48a側の第3突出部48bとで上部金具45の第1突出部45dを挟み込むように折り曲げられている。また、第4突出部47cの前面(図2の右側の面)には、それぞれ外側に向けて略90°折り曲げられた折曲部47f等が設けられている。 The third protruding portion 47b and the fourth protruding portion 47c are projected upward from the lower metal fitting 47 so as to sandwich the horizontal scaffolding pipe 12 between the protruding portions and support them from below. As shown in FIG. 6, which shows the upper surface configuration of the lower metal fitting 47 before assembly, the third protrusion 47b sandwiches the first protrusion 45d of the upper metal fitting 45 with the third protrusion 48b on the side plate 48a side. It is folded. Further, on the front surface of the fourth protruding portion 47c (the surface on the right side in FIG. 2), a bent portion 47f or the like that is bent substantially 90 ° toward the outside is provided.

第3突出部47b,48bには、前述した上部金具45の第1突出部45dの透孔45eに対応する円形の孔47e,48eが設けられており、回転軸となるブラインドリベットなどにより第1突出部45dに回転可能に支持される。このように、ブラインドリベットなどを用いることによって、ボルトとナット等で止めた場合等に比べて緩みが生じることを防止することができる。固定具40としてみると、下部金具47と上部金具45とが孔45eを中心に回動可能とされている。側板47a、48aには、横足場パイプ12を当接して保持するために、中部47dを半円弧状に切り欠いた切り欠き部が形成されている。 The third protrusions 47b and 48b are provided with circular holes 47e and 48e corresponding to the through holes 45e of the first protrusion 45d of the upper metal fitting 45 described above, and the first is provided by a blind rivet or the like as a rotation axis. It is rotatably supported by the protrusion 45d. In this way, by using a blind rivet or the like, it is possible to prevent loosening as compared with the case where the rivet is fastened with a bolt and a nut or the like. As a fixture 40, the lower metal fitting 47 and the upper metal fitting 45 are rotatable around the hole 45e. The side plates 47a and 48a are formed with notches in which the middle portion 47d is cut out in a semicircular shape in order to abut and hold the horizontal scaffolding pipe 12.

第4突出部47c、48cは、上部金具45の第2突出部45fに係合する。この係合状態をロックおよびロック解除(アンロック)するロック機構60について説明する。図2に示すように、前述した第2突出部45fに設けられた円孔45gには、ボルト部61が回転軸となるリベットなどにより回動自在に軸支されており、このボルト部61には、ナット62が螺合されている。 The fourth protrusions 47c and 48c engage with the second protrusion 45f of the upper metal fitting 45. The lock mechanism 60 that locks and unlocks (unlocks) this engaged state will be described. As shown in FIG. 2, the bolt portion 61 is rotatably supported by a rivet or the like as a rotation axis in the circular hole 45g provided in the second protruding portion 45f described above, and the bolt portion 61 is rotatably supported by the bolt portion 61. Is screwed with a nut 62.

図7、図8は、ボルト部61の構成を示す図であり、図7(a)は上面図、図7(b)は側面図、図8は図7(b)から90°回転した方向から見た側面図である。これらの図に示すように、ボルト部61は、例えばM10等のボルトから構成されており、その下側部分にネジ山61aが形成され、上端部側にはネジ山のない無ネジ部61bとなっている。この無ネジ部61bの径方向中央部には、軸方向に沿って切込61cが形成され、この切込61c内に第2突出部45fの一部を挿入可能となっている。 7 and 8 are views showing the configuration of the bolt portion 61, FIG. 7A is a top view, FIG. 7B is a side view, and FIG. 8 is a direction rotated by 90 ° from FIG. 7B. It is a side view seen from. As shown in these figures, the bolt portion 61 is composed of bolts such as M10, for example, a screw thread 61a is formed in a lower portion thereof, and a screwless portion 61b having no screw thread is formed on the upper end portion side. It has become. A notch 61c is formed along the axial direction in the radial center portion of the screwless portion 61b, and a part of the second protruding portion 45f can be inserted into the notch 61c.

また、切込61cの部分には、切込61cの部分を跨いで無ネジ部61bを貫通する貫通孔61dが形成されている。そして、第2突出部45fを切込61cに挿入し、貫通孔61d及び円孔45gを貫通するようにリベット止め等することによって、ボルト部61が回動自在に第2突出部45fに軸支されている。なお、ボルト部61のネジ山61aの下側端部部分は、例えば、打痕加工等によりネジ山を潰してナット62がボルト部61から抜けないようになっている。 Further, a through hole 61d is formed in the cut portion 61c so as to straddle the cut portion 61c and penetrate the screwless portion 61b. Then, by inserting the second protruding portion 45f into the notch 61c and riveting or the like so as to penetrate the through hole 61d and the circular hole 45g, the bolt portion 61 is rotatably supported by the second protruding portion 45f. Has been done. The lower end portion of the screw thread 61a of the bolt portion 61 is crushed by, for example, denting or the like so that the nut 62 does not come off from the bolt portion 61.

一方、図6に示すように、下部金具47の底板46には、上記したボルト部61に対応するように、U字状の切り欠き46aが形成されている。すなわち、ロック機構60は、第2突出部45fに回動自在に軸支されているボルト部61と、このボルト部61に螺合されたナット62と、下部金具47の底板46に形成されたU字状の切り欠き46aとによって構成されている。この場合、ボルト部61の中央部に切込61cを設けて上部金具45に取り付けることによって、ボルト部61が上部金具45に対して偏心することなく取り付けることができ、ロック機構60として下部金具47と締め付けた際にも力が偏ることなく均一に作用させることができる。 On the other hand, as shown in FIG. 6, the bottom plate 46 of the lower metal fitting 47 is formed with a U-shaped notch 46a so as to correspond to the bolt portion 61 described above. That is, the lock mechanism 60 is formed on a bolt portion 61 rotatably supported by the second protrusion 45f, a nut 62 screwed into the bolt portion 61, and a bottom plate 46 of the lower metal fitting 47. It is composed of a U-shaped notch 46a. In this case, by providing a notch 61c in the center of the bolt portion 61 and attaching it to the upper metal fitting 45, the bolt portion 61 can be attached without being eccentric to the upper metal fitting 45, and the lower metal fitting 47 as the lock mechanism 60. Even when tightened, the force can be applied uniformly without bias.

そして、第4突出部47c、48cを、上部金具45の第2突出部45fに係合させた状態で、ボルト部61をU字状の切り欠き46aに引っ掛け、この状態でナット62をラチェットレンチ等によって締め付けることによって係合状態をロックでき、ナット62を緩めることによってロック解除(アンロック)できるようになっている。また、本実施形態では、U字状の切り欠き46aの入口側に位置する底板46には、下方に向けて突出する突起46bが形成されている。したがって、ナット62が多少緩んだとしても、この突起46bによって、ボルト部61及びナット62が下部金具47から外れてしまうことを防止することができる。 Then, with the fourth protrusions 47c and 48c engaged with the second protrusion 45f of the upper metal fitting 45, the bolt portion 61 is hooked on the U-shaped notch 46a, and the nut 62 is ratcheted trench in this state. The engaged state can be locked by tightening with or the like, and the lock can be unlocked (unlocked) by loosening the nut 62. Further, in the present embodiment, the bottom plate 46 located on the inlet side of the U-shaped notch 46a is formed with a protrusion 46b protruding downward. Therefore, even if the nut 62 is loosened to some extent, it is possible to prevent the bolt portion 61 and the nut 62 from coming off from the lower metal fitting 47 by the protrusion 46b.

この固定具40は、上部金具45と下部金具47の一端がリベット止めなどで回転自在に支持されて、他端がロック機構60でロック、ロック解除(アンロック)される構造とされており、各パーツ全てが一体化されている。このようにパーツを一体化することで、部品の紛失およびそれによる異物の混入や落下による災害の防止などが図られる。 The fixture 40 has a structure in which one end of the upper metal fitting 45 and the lower metal fitting 47 is rotatably supported by a rivet stopper or the like, and the other end is locked and unlocked (unlocked) by the lock mechanism 60. All parts are integrated. By integrating the parts in this way, it is possible to prevent the loss of the parts and the resulting contamination of foreign substances and disasters caused by dropping.

ここで、図9、図10を参照して足場板21、22の設置(固定)作業を説明する。なお、図9、図10では、説明を容易にするため、一方の足場板21のみを図示している。この場合、横足場パイプ12の上にどちらか一方の足場板、例えば足場板21を載せた後、図9に示すような開放状態の固定具40の押え金具45aを、足場板本体21aの上面にあてがい、また平板部45cの半円弧状の切欠きに横足場パイプ12をあてがうようにして、固定具40を足場板21および横足場パイプ12に係合させる。 Here, the installation (fixing) work of the scaffolding plates 21 and 22 will be described with reference to FIGS. 9 and 10. In addition, in FIGS. 9 and 10, only one scaffolding plate 21 is shown for the sake of simplicity. In this case, after placing one of the scaffolding plates, for example, the scaffolding plate 21 on the horizontal scaffolding pipe 12, the holding metal fitting 45a of the fixture 40 in the open state as shown in FIG. 9 is attached to the upper surface of the scaffolding plate main body 21a. The fixture 40 is engaged with the scaffolding plate 21 and the horizontal scaffolding pipe 12 by applying the horizontal scaffolding pipe 12 to the semi-arc-shaped notch of the flat plate portion 45c.

続いて、固定具40の平板部45cを足場板21の側面21bと、足場板22の側面22bとで挟むようにして他方の足場板22を足場板21に並べるように配置する。この際、固定具40の押え金具45bを足場板本体22aの上面にあてがうようにする(図3参照)。すなわち、足場板21、22の上方から固定具40の押え金具45a、45bを足場板21、22の上面端部に掛止する。 Subsequently, the flat plate portion 45c of the fixture 40 is sandwiched between the side surface 21b of the scaffolding plate 21 and the side surface 22b of the scaffolding plate 22, and the other scaffolding plate 22 is arranged so as to be arranged on the scaffolding plate 21. At this time, the holding metal fitting 45b of the fixing tool 40 is applied to the upper surface of the scaffolding plate main body 22a (see FIG. 3). That is, the holding metal fittings 45a and 45b of the fixing tool 40 are hooked to the upper end portions of the scaffolding plates 21 and 22 from above the scaffolding plates 21 and 22.

次に、足場板21、22の下で、固定具40のナット62を緩めるとともに、ボルト部61を図9に示す矢印のように上方に向けて回動させた状態で、下部金具47を図9に示す矢印のように上方に向けて回動させて、下部金具47の第4突出部47cを上部金具45の第2突出部45fに係合させるとともに、下部金具47の規制金具49の規制面49aを、足場板21の突出面21dに係合させて、図10の係合状態とする。足場板22の突出面22dについても同様である。 Next, under the scaffolding plates 21 and 22, the nut 62 of the fixture 40 is loosened, and the lower metal fitting 47 is shown in a state where the bolt portion 61 is rotated upward as shown by the arrow shown in FIG. By rotating it upward as shown by the arrow shown in 9, the fourth protruding portion 47c of the lower metal fitting 47 is engaged with the second protruding portion 45f of the upper metal fitting 45, and the regulation metal fitting 49 of the lower metal fitting 47 is regulated. The surface 49a is engaged with the protruding surface 21d of the scaffolding plate 21 to bring the surface 49a into the engaged state shown in FIG. The same applies to the protruding surface 22d of the scaffolding plate 22.

すなわち、固定具40に下方に向けて横足場パイプ12を両側から挟むように突設した第1突出部45dおよび第2突出部45fと、これら第1突出部45dおよび第2突出部45fに対応し上方に向けて固定具40に突設した第3突出部47bおよび第4突出部47cとを係合させて横足場パイプ12を上下左右から挟持する。 That is, it corresponds to the first protruding portion 45d and the second protruding portion 45f protruding downward from both sides of the horizontal scaffolding pipe 12 to the fixture 40, and the first protruding portion 45d and the second protruding portion 45f. The horizontal scaffolding pipe 12 is sandwiched from the top, bottom, left and right by engaging the third protrusion 47b and the fourth protrusion 47c projecting upward from the fixture 40.

その後、ボルト部61を図10に示す矢印のように下方に向けて回動させ、下部金具47の底板46に形成されたU字状の切り欠き46a(図6参照)内にボルト部61を挿入する。そして、ナット62をラチェットレンチ等で締め付けることによって、上部金具45と下部金具47の係合状態をロックする。 After that, the bolt portion 61 is rotated downward as shown by the arrow shown in FIG. 10, and the bolt portion 61 is inserted into the U-shaped notch 46a (see FIG. 6) formed in the bottom plate 46 of the lower metal fitting 47. insert. Then, by tightening the nut 62 with a ratchet wrench or the like, the engaged state of the upper metal fitting 45 and the lower metal fitting 47 is locked.

一方、仮設足場10の解体作業などで固定具40のロック状態(掛止状態)を解除、つまりアンロックする場合は、ラチェットレンチ等でナット62を緩め、上記したとは逆の操作によって、固定具40を取り外し、横足場パイプ12と足場板21及び足場板22とを取り外して解体することができる。 On the other hand, when unlocking, that is, unlocking the fixture 40 by dismantling the temporary scaffolding 10, loosen the nut 62 with a ratchet wrench or the like and fix it by the reverse operation of the above. The tool 40 can be removed, and the horizontal scaffolding pipe 12, the scaffolding plate 21, and the scaffolding plate 22 can be removed and disassembled.

上記のような仮設足場10の、組立及び解体を行う場合、図13に示すように、上部金具45と下部金具47との回転軸となる、下部金具47の孔47eの上側部分に突出する突出片47gを設けておくと良い。ロック機構60を開放した状態では、上部金具45に対して下部金具47が回転するが、この突出片47gが横足場パイプ12に当接してその回転が制限され、固定具40が落下することを防止することができる。 When assembling and disassembling the temporary scaffold 10 as described above, as shown in FIG. 13, a protrusion protruding from the upper portion of the hole 47e of the lower metal fitting 47, which is the rotation axis between the upper metal fitting 45 and the lower metal fitting 47. It is advisable to provide 47 g of pieces. In the state where the lock mechanism 60 is open, the lower metal fitting 47 rotates with respect to the upper metal fitting 45, but the protruding piece 47 g abuts on the horizontal scaffolding pipe 12, the rotation is restricted, and the fixture 40 falls. Can be prevented.

以上説明したように、この実施形態の仮設足場10によれば、上部金具45に下部金具47を回動自在に支持し、上部金具45の押え金具45a、45bをそれぞれ足場板本体21a、22aに掛止し、上部金具45の第1突出部45d、第2突出部45fで横足場パイプ12を両側から挟持した状態で、上部金具45に下部金具47を係合させて上下から横足場パイプ12を挟持するとともに、上部金具45と下部金具47との係合状態をロック機構60にてロックするので、固定具40にて、足場板21、22を横足場パイプ12に作業性よく確実に固定することができる。また、従来に比べて、仮設足場10における足場板20の固定作業および解体作業にかかる作業性が向上し、作業時間を短縮することができる。 As described above, according to the temporary scaffolding 10 of this embodiment, the lower metal fittings 47 are rotatably supported on the upper metal fittings 45, and the holding metal fittings 45a and 45b of the upper metal fittings 45 are attached to the scaffolding plate main bodies 21a and 22a, respectively. With the horizontal scaffolding pipe 12 sandwiched from both sides by the first protruding portion 45d and the second protruding portion 45f of the upper metal fitting 45, the lower metal fitting 47 is engaged with the upper metal fitting 45 and the horizontal scaffolding pipe 12 is engaged from above and below. And locks the engaged state between the upper metal fitting 45 and the lower metal fitting 47 with the lock mechanism 60, so that the scaffolding plates 21 and 22 are securely fixed to the horizontal scaffolding pipe 12 with the fixture 40 with good workability. can do. Further, as compared with the conventional case, the workability required for the fixing work and the dismantling work of the scaffolding plate 20 in the temporary scaffolding 10 is improved, and the working time can be shortened.

また、上部の押え金具45a、45bは、足場板本体21a、22aの端部で板厚(2.3mm程度)で掛止されるので、従来のように足場板21、22に番線を渡して縛っていたときよりも作業者がつまづく危険性が大幅に少なくなる。 Further, since the upper holding metal fittings 45a and 45b are hooked at the ends of the scaffolding plate bodies 21a and 22a with a plate thickness (about 2.3 mm), the number is passed to the scaffolding plates 21 and 22 as in the conventional case. The risk of workers tripping is significantly less than when tied up.

さらに、1枚の鋼板を型抜きして2枚の板にして各板を折り曲げ加工して上部金具45と下部金具47を作り、互いの金具の一端を回動自在に支持し、他端に、上部金具45に回動自在に軸支されたボルト部61及びナット62と、下部金具47の底板46に形成したU字状の切り欠き46a等によってロック機構60を構成したので、固定具40としての材料コストおよび加工コストを大幅に削減することができる。 Further, one steel plate is die-cut into two plates, and each plate is bent to make an upper metal fitting 45 and a lower metal fitting 47, one end of each metal fitting is rotatably supported, and the other end is supported. The lock mechanism 60 is configured by the bolt portion 61 and the nut 62 rotatably supported by the upper metal fitting 45, the U-shaped notch 46a formed in the bottom plate 46 of the lower metal fitting 47, and the like. As a material cost and processing cost can be significantly reduced.

以上により、足場板21、22を固定する際の作業性がよく、足場の上で作業者が安心して安全に作業を行うことができるようになる。 As a result, the workability when fixing the scaffolding plates 21 and 22 is good, and the worker can work safely and securely on the scaffolding.

上記実施形態では、2枚の足場板21、22の間に固定具40を1つ配置して横足場パイプ12に固定する例を示したが、最端の1枚の端部の足場板21だけでも押え金具45aまたは45bで横足場パイプ12に固定することができることはいうまでもない。また、最端の1枚の端部の足場板21のために、例えば、図11に示すように、上部金具45として、一方のみに押え金具45aがあるもの、図12に示すように、下部金具47として、一方のみに規制金具49があるものを使用しても良い。 In the above embodiment, an example in which one fixture 40 is arranged between the two scaffolding plates 21 and 22 and fixed to the horizontal scaffolding pipe 12 is shown, but the scaffolding plate 21 at the end of one end is shown. Needless to say, it can be fixed to the horizontal scaffolding pipe 12 with the holding metal fittings 45a or 45b alone. Further, for the scaffolding plate 21 at one end, for example, as shown in FIG. 11, as the upper metal fitting 45, there is a holding metal fitting 45a on only one side, and as shown in FIG. 12, the lower metal fitting 45a is provided. As the metal fitting 47, one having a regulation metal fitting 49 on only one side may be used.

本発明の実施形態を説明したが、この実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。この新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。またこの実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 Although embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. This novel embodiment can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention. Further, this embodiment and its modifications are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

10…仮設足場、11…単管足場パイプ、12…横足場パイプ、13…単管足場パイプ、14…つまさき板、21、22…足場板、21a,22a…足場板本体、40…固定具、45…上部金具、45d…第1突出部、45f…第2突出部、45g…円孔、45e…透孔、46…底板、46a…U字状の切込、46b…突起、47…下部金具、47a、48a…側板、47b、48b…第3突出部、47c、48c…第4突出部、47d、48d…中部、47e、48e…孔、47f、48f…折曲部、49…規制金具、49a…規制面、60…ロック機構、61…ボルト部、62…ナット。 10 ... Temporary scaffolding, 11 ... Single pipe scaffolding pipe, 12 ... Horizontal scaffolding pipe, 13 ... Single pipe scaffolding pipe, 14 ... Scaffolding board, 21, 22 ... Scaffolding board, 21a, 22a ... Scaffolding board body, 40 ... Fixture , 45 ... upper metal fitting, 45d ... first protrusion, 45f ... second protrusion, 45 g ... circular hole, 45e ... through hole, 46 ... bottom plate, 46a ... U-shaped notch, 46b ... protrusion, 47 ... lower Metal fittings, 47a, 48a ... Side plates, 47b, 48b ... Third protrusions, 47c, 48c ... Fourth protrusions, 47d, 48d ... Middle part, 47e, 48e ... Holes, 47f, 48f ... Bent parts, 49 ... Regulatory metal fittings , 49a ... Regulatory surface, 60 ... Lock mechanism, 61 ... Bolt part, 62 ... Nut.

Claims (9)

固定された単管の上に単管の軸と直交する方向に長手方向を向けて載置した足場板を単管に固定する固定具であって、
前記足場板の上方から足場板の上面に掛止される掛止部と、前記掛止部に接続され足場板の側縁に沿って配置される平板部と、前記平板部の下部に下方に向けて前記単管を両側から挟むように突設された第1突出部および第2突出部とを有する上部金具と、
前記第1突出部に回転可能に支持される第3突出部と、前記第2突出部に係合する第4突出部とを上側に向けて、互いの突出部の間に前記単管を挟んで支持するように突設した下部金具と、
前記第2突出部と前記第4突出部との係合状態をロックおよびアンロック可能に設けられたロック機構とを具備し、
前記ロック機構は、前記第2突出部に回動自在に係止されたボルト部と、当該ボルト部に螺合されたナットと、前記下部金具の底部に形成された係止用切り欠き部とを備え、前記ボルト部を前記係止用切り欠き部に引っ掛け、前記ナットを締めることによって係合状態をロックし、
前記第1突出部と、前記第3突出部とは、これらを回転可能に支持する回転軸に軸支され、前記第1突出部には、前記回転軸の位置を変更可能とする屈曲した長穴状の透孔が形成されている固定具。
It is a fixture that fixes a scaffolding plate placed on a fixed single tube with its longitudinal direction oriented in the direction orthogonal to the axis of the single tube to the single tube.
A hooking portion that is hooked on the upper surface of the scaffolding plate from above the scaffolding plate, a flat plate portion that is connected to the hooking portion and is arranged along the side edge of the scaffolding plate, and a lower portion below the flat plate portion. An upper metal fitting having a first projecting portion and a second projecting portion projecting so as to sandwich the single tube from both sides, and an upper metal fitting.
The single tube is sandwiched between the protrusions with the third protrusion rotatably supported by the first protrusion and the fourth protrusion engaged with the second protrusion facing upward. With the lower metal fittings that are projected to support with
It is provided with a locking mechanism provided so that the engagement state between the second protruding portion and the fourth protruding portion can be locked and unlocked.
The locking mechanism includes a bolt portion rotatably locked to the second protruding portion, a nut screwed into the bolt portion, and a locking notch formed at the bottom of the lower metal fitting. The bolt portion is hooked on the locking notch portion, and the nut is tightened to lock the engaged state.
The first protrusion and the third protrusion are pivotally supported by a rotation shaft that rotatably supports them, and the first protrusion has a bent length that allows the position of the rotation shaft to be changed. Fixture with a hole-shaped through hole .
前記下部金具は、
前記回転軸に軸支され軸支部の上側に突出し、前記単管と接触することにより前記下部金具の前記回転軸周りの回転を制御する突出片を具備する請求項記載の固定具。
The lower metal fitting is
The fixture according to claim 1 , further comprising a projecting piece that is pivotally supported by the rotating shaft, projects upward of the shaft support portion, and controls the rotation of the lower metal fitting around the rotating shaft by contacting with the single tube.
固定された単管の上に単管の軸と直交する方向に長手方向を向けて載置した足場板を単管に固定する固定具であって、
前記足場板の上方から足場板の上面に掛止される掛止部と、前記掛止部に接続され足場板の側縁に沿って配置される平板部と、前記平板部の下部に下方に向けて前記単管を両側から挟むように突設された第1突出部および第2突出部とを有する上部金具と、
前記第1突出部に回転可能に支持される第3突出部と、前記第2突出部に係合する第4突出部とを上側に向けて、互いの突出部の間に前記単管を挟んで支持するように突設した下部金具と、
前記第2突出部と前記第4突出部との係合状態をロックおよびアンロック可能に設けられたロック機構とを具備し、
前記ロック機構は、前記第2突出部に回動自在に係止されたボルト部と、当該ボルト部に螺合されたナットと、前記下部金具の底部に形成された係止用切り欠き部とを備え、前記ボルト部を前記係止用切り欠き部に引っ掛け、前記ナットを締めることによって係合状態をロックし、
前記下部金具は、底部の前記係止用切り欠き部の入口側に、前記ボルト部の抜けを防止するための突起を有する固定具。
It is a fixture that fixes a scaffolding plate placed on a fixed single tube with its longitudinal direction oriented in the direction orthogonal to the axis of the single tube to the single tube.
A hooking portion that is hooked on the upper surface of the scaffolding plate from above the scaffolding plate, a flat plate portion that is connected to the hooking portion and is arranged along the side edge of the scaffolding plate, and a lower portion below the flat plate portion. An upper metal fitting having a first projecting portion and a second projecting portion projecting so as to sandwich the single tube from both sides, and an upper metal fitting.
The single tube is sandwiched between the protrusions with the third protrusion rotatably supported by the first protrusion and the fourth protrusion engaged with the second protrusion facing upward. With the lower metal fittings that are projected to support with
It is provided with a locking mechanism provided so that the engagement state between the second protruding portion and the fourth protruding portion can be locked and unlocked.
The locking mechanism includes a bolt portion rotatably locked to the second protruding portion, a nut screwed into the bolt portion, and a locking notch formed at the bottom of the lower metal fitting. The bolt portion is hooked on the locking notch portion, and the nut is tightened to lock the engaged state.
The lower metal fitting is a fixing tool having a protrusion on the inlet side of the locking notch at the bottom to prevent the bolt portion from coming off.
固定された単管の上に単管の軸と直交する方向に長手方向を向けて載置した足場板を単管に固定する固定具であって、
前記足場板の上方から足場板の上面に掛止される掛止部と、前記掛止部に接続され足場板の側縁に沿って配置される平板部と、前記平板部の下部に下方に向けて前記単管を両側から挟むように突設された第1突出部および第2突出部とを有する上部金具と、
前記第1突出部に回転可能に支持される第3突出部と、前記第2突出部に係合する第4突出部とを上側に向けて、互いの突出部の間に前記単管を挟んで支持するように突設した下部金具と、
前記第2突出部と前記第4突出部との係合状態をロックおよびアンロック可能に設けられたロック機構とを具備し、
前記ロック機構は、前記第2突出部に回動自在に係止されたボルト部と、当該ボルト部に螺合されたナットと、前記下部金具の底部に形成された係止用切り欠き部とを備え、前記ボルト部を前記係止用切り欠き部に引っ掛け、前記ナットを締めることによって係合状態をロックし、
前記下部金具、前記下部金具と前記上部金具とで前記単管を挟持した状態で前記足場板の内壁に対向配置される規制金具を有する固定具。
It is a fixture that fixes a scaffolding plate placed on a fixed single tube with its longitudinal direction oriented in the direction orthogonal to the axis of the single tube to the single tube.
A hooking portion that is hooked on the upper surface of the scaffolding plate from above the scaffolding plate, a flat plate portion that is connected to the hooking portion and is arranged along the side edge of the scaffolding plate, and a lower portion below the flat plate portion. An upper metal fitting having a first projecting portion and a second projecting portion projecting so as to sandwich the single tube from both sides, and an upper metal fitting.
The single tube is sandwiched between the protrusions with the third protrusion rotatably supported by the first protrusion and the fourth protrusion engaged with the second protrusion facing upward. With the lower metal fittings that are projected to support with
It is provided with a locking mechanism provided so that the engagement state between the second protruding portion and the fourth protruding portion can be locked and unlocked.
The locking mechanism includes a bolt portion rotatably locked to the second protruding portion, a nut screwed into the bolt portion, and a locking notch formed at the bottom of the lower metal fitting. The bolt portion is hooked on the locking notch portion, and the nut is tightened to lock the engaged state.
The lower metal fitting is a fixing tool having a restricting metal fitting that is arranged to face the inner wall of the scaffolding plate in a state where the single pipe is sandwiched between the lower metal fitting and the upper metal fitting.
前記ボルト部は、
軸方向端部の、径方向中央部に軸方向に沿って切削した切込を具備し、当該切込内に前記第2突出部の一部を収容した状態で前記第2突出部に回動自在に係止されている請求項1乃至の何れか1項記載の固定具。
The bolt part is
A notch cut along the axial direction is provided at the center of the axial end portion in the radial direction, and the second protruding portion is rotated to the second protruding portion with a part of the second protruding portion accommodated in the notch. The fixture according to any one of claims 1 to 4 , which is freely locked.
前記下部金具は、底部の前記係止用切り欠き部の入口側に、前記ボルト部の抜けを防止するための突起を有する請求項1乃至2及び請求項4の何れか1項記載の固定具。 The fixing according to any one of claims 1 and 2 , wherein the lower metal fitting has a protrusion on the inlet side of the locking notch at the bottom to prevent the bolt portion from coming off. Ingredients. 前記下部金具が、
前記下部金具と前記上部金具とで前記単管を挟持した状態で前記足場板の内壁に対向配置される規制金具を具備する請求項1乃至の何れか1項記載の固定具。
The lower metal fitting
The fixing tool according to any one of claims 1 to 3 , further comprising a regulating metal fitting arranged to face the inner wall of the scaffolding plate with the single pipe sandwiched between the lower metal fitting and the upper metal fitting.
前記掛止部は、前記平板部に対して互いに反対方向に直角に折曲して形成されている請求項1乃至の何れか1項記載の固定具。 The fixing tool according to any one of claims 1 to 7 , wherein the hook portion is formed by bending at a right angle to the flat plate portion in a direction opposite to each other. 請求項1乃至8の何れか1項記載の固定具を使用して、固定された単管の上に単管の軸と直行する方向に長手方向を向けて載置した足場板を前記単管に固定する足場板の固定方法。 Using the fixture according to any one of claims 1 to 8, a scaffolding plate placed on a fixed single tube with the longitudinal direction oriented perpendicular to the axis of the single tube is placed on the fixed single tube. How to fix the scaffolding board to be fixed to the pipe .
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JP2001164744A (en) 1999-12-06 2001-06-19 Yuko Maintenance:Kk Construction method for temporary structure and joint metal fixture for construction
JP2001173225A (en) 1999-12-17 2001-06-26 Sumuto Konno Scaffold board fixture
JP2001248300A (en) 2000-03-03 2001-09-14 Mst:Kk Fixing tool for scaffolding board

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JP2565016B2 (en) * 1991-05-16 1996-12-18 日立プラント建設株式会社 Lever scaffolding plate clamp
JPH0978825A (en) * 1995-09-19 1997-03-25 Toshiharu Hirano Construction method of temporary scaffolding
JPH09228629A (en) * 1996-02-27 1997-09-02 Daiwa Kogyosho:Kk Pipe for scaffold and metal fixture for fixing scaffolding board

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JP2001164744A (en) 1999-12-06 2001-06-19 Yuko Maintenance:Kk Construction method for temporary structure and joint metal fixture for construction
JP2001173225A (en) 1999-12-17 2001-06-26 Sumuto Konno Scaffold board fixture
JP2001248300A (en) 2000-03-03 2001-09-14 Mst:Kk Fixing tool for scaffolding board

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