JP6811008B2 - Tread cover - Google Patents

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JP6811008B2
JP6811008B2 JP2015200432A JP2015200432A JP6811008B2 JP 6811008 B2 JP6811008 B2 JP 6811008B2 JP 2015200432 A JP2015200432 A JP 2015200432A JP 2015200432 A JP2015200432 A JP 2015200432A JP 6811008 B2 JP6811008 B2 JP 6811008B2
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tread
cover
protrusion
surface portion
tread cover
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JP2017071980A (en
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千田　豊治
豊治 千田
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ジー・オー・ピー株式会社
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Description

本発明は、作業台やハシゴ等の踏桟に取り付けられる踏桟カバーに関する。 The present invention relates to a tread cover attached to a tread such as a workbench or a ladder.

従来から、踏桟に踏桟カバーが取り付けられた作業台が知られている。例えば、特許文献１の作業台は、一対の梯子枠と天板と踏桟カバーとを備える。梯子枠は、上部に手摺支柱を延設した一対の支柱脚間に複数の踏桟が適宜間隔で取り付けられたものである。一対の支柱脚は、互いに対向し、上端が相互に回動自在に軸着する。天板は、支柱脚の上部位置で梯子枠間に折り畳み自在に架け渡されている。踏桟カバーは、コンクリートが付着しにくく、耐候性を有し、係止手段を介して踏桟に着脱自在に取り付けられている。 Conventionally, a workbench in which a tread cover is attached to a tread has been known. For example, the workbench of Patent Document 1 includes a pair of ladder frames, a top plate, and a tread cover. The ladder frame is formed by attaching a plurality of treads at appropriate intervals between a pair of support legs having handrail columns extended at the upper part. The pair of strut legs face each other, and the upper ends are pivotally attached to each other so as to be rotatable. The top plate is foldably bridged between the ladder frames at the upper position of the column legs. The tread cover is hard to adhere to concrete, has weather resistance, and is detachably attached to the tread via a locking means.

特開２００４−６８４３６号公報Japanese Unexamined Patent Publication No. 2004-68436

しかしながら、上記の作業台は、踏桟の幅が狭い場合に踏桟を昇降する作業者の足場が不安定になるおそれがあった。 However, in the above workbench, when the width of the tread is narrow, the scaffolding of the worker who goes up and down the tread may become unstable.

本発明は上記のような点に鑑みてなされたものであり、踏桟を昇降する作業者の足場の安定性を向上させることを目的とする。 The present invention has been made in view of the above points, and an object of the present invention is to improve the stability of the scaffolding of an operator who goes up and down the tread.

本発明の踏桟カバーは、踏桟に取り付けられる踏桟カバーであって、前記踏桟の上面の
少なくとも一部を覆う上面部と、前記上面部から前記踏桟が配置される側の方向と反対方
向に伸びる上面延長部、及び、前記上面延長部の下方に配置され前記踏桟が配置される側
の方向へ伸びて前記上面延長部と対向する折り返し部、を有する突出部と、を備え、前記
突出部は、前記上面延長部と前記折り返し部とで囲まれる空間に前記踏桟の上面の端部か
ら突出する突起部が入り込むことを特徴とする。 The tread cover of the present invention is a tread cover attached to the tread, and has an upper surface portion that covers at least a part of the upper surface of the tread rail and a direction from the upper surface portion to the side where the tread rail is arranged. A protrusion having an upper surface extension portion extending in the opposite direction and a folded portion extending below the upper surface extension portion and extending in the direction of the side on which the tread rail is arranged and facing the upper surface extension portion. The protruding portion is characterized in that a protruding portion protruding from an end portion of the upper surface of the tread is inserted into a space surrounded by the upper surface extending portion and the folded portion .

本発明によれば、踏桟を昇降する作業者の足場の安定性を向上させることができる。 According to the present invention, it is possible to improve the stability of the scaffolding of an operator who goes up and down the tread.

第１実施形態の脚立式作業台の斜視図である。It is a perspective view of the stepping-type workbench of 1st Embodiment. 第１実施形態の脚立式作業台の一部を拡大した斜視図である。It is an enlarged perspective view of a part of the stepping-type workbench of 1st Embodiment. 第１実施形態の踏桟カバーの斜視図である。It is a perspective view of the tread cover of 1st Embodiment. 第１実施形態の踏桟及び踏桟カバーの断面図である。It is sectional drawing of the tread rail and the tread rail cover of 1st Embodiment. 第２実施形態の踏桟及び踏桟カバーの断面図である。It is sectional drawing of the tread rail and the tread rail cover of the 2nd Embodiment. 第３実施形態の踏桟及び踏桟カバーの断面図である。It is sectional drawing of the tread and the tread cover of the third embodiment. 第４実施形態の踏桟及び踏桟カバーの断面図である。It is sectional drawing of the tread rail and the tread rail cover of 4th Embodiment. 第５実施形態の踏桟及び踏桟カバーの断面図である。It is sectional drawing of the tread and the tread cover of the fifth embodiment.

以下、添付図面を参照して、本発明の好適な実施形態について説明する。
＜第１実施形態＞
はじめに、図１及び図２を参照して、本実施形態に係る脚立式作業台１について説明する。図１は本実施形態に係る脚立式作業台１の斜視図、図２は脚立式作業台１の一部（図１の一点鎖線部）を拡大した斜視図である。本願において前後の方向は、天板２０に立つ作業者が作業時に主に向く方向を前とし、必要に応じて脚立式作業台１の前側をＦｒ、後側をＲｒで示す。また、右側をＲ、左側をＬ、上側をＵｐ、下側をＤｗで示す。
脚立式作業台１は、一対の主脚１０（１０ａ、１０ｂ）と、天板２０と、天板２０の上方の作業空間Ｓ１を包囲する枠部材としての第１の枠部材３０及び第２の枠部材４０と、踏桟カバー１００とを備える。 Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
<First Embodiment>
First, the stepped workbench 1 according to the present embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view of a stepped-type workbench 1 according to the present embodiment, and FIG. 2 is an enlarged perspective view of a part of the stepped-type workbench 1 (one-dot chain line portion in FIG. 1). In the present application, the front-rear direction is the direction in which the worker standing on the top plate 20 mainly faces during work, and the front side of the stepping-type workbench 1 is indicated by Fr and the rear side is indicated by Rr, if necessary. The right side is indicated by R, the left side is indicated by L, the upper side is indicated by Up, and the lower side is indicated by Dw.
The stepped workbench 1 includes a pair of main landing gears 10 (10a, 10b), a top plate 20, and a first frame member 30 and a second frame member as frame members surrounding the work space S1 above the top plate 20. The frame member 40 and the tread cover 100 are provided.

一対の主脚１０は、上部が回動部１１を介して回動自在に軸着され、下側に向かって外側に傾斜して、いわゆる脚立として機能する。
本実施形態では、一対の主脚１０は、長尺な第１の主脚１０ａと、短尺な第２の主脚１０ｂとからなる。第１の主脚１０ａ及び第２の主脚１０ｂは、それぞれ例えばアルミニウム合金製である。第１の主脚１０ａの左右一対の支柱１２の間に踏桟１３ａを適宜間隔で取り付けることで梯子状に形成される。同様に、第１の主脚１０ｂの左右一対の支柱１２の間に踏桟１３ｂを適宜間隔で取り付けることで梯子状に形成される。第１の主脚１０ａ及び第２の主脚１０ｂにおいて、左右一対の支柱１２は、下部では下方に向かって拡幅するように延びるが、上部では上下方向にまっすぐに延びる形状となっている。
第１の主脚１０ａ及び第２の主脚１０ｂは、第１の主脚１０ａの上端よりも下側と第２の主脚１０ｂの上端とが回動部１１を介して回転自在に軸着される。したがって、第１の主脚１０ａは回動部１１よりも上方に延出する。脚立式作業台１を使用しないときには、回動部１１を中心に第１の主脚１０ａ及び第２の主脚１０ｂが平行になるように折り畳まれる。 The upper part of the pair of main landing gears 10 is rotatably pivotally attached via the rotating portion 11, and the pair of main landing gears 10 is inclined outward toward the lower side to function as a so-called stepladder.
In the present embodiment, the pair of main landing gears 10 includes a long first main landing gear 10a and a short second main landing gear 10b. The first main landing gear 10a and the second main landing gear 10b are each made of, for example, an aluminum alloy. It is formed in a ladder shape by attaching the treads 13a between the pair of left and right columns 12 of the first main landing gear 10a at appropriate intervals. Similarly, the treads 13b are attached between the pair of left and right columns 12 of the first main landing gear 10b at appropriate intervals to form a ladder shape. In the first main landing gear 10a and the second main landing gear 10b, the pair of left and right strut 12s extend downward so as to widen in the lower part, but extend straight in the vertical direction in the upper part.
In the first main landing gear 10a and the second main landing gear 10b, the lower side of the first main landing gear 10a and the upper end of the second main landing gear 10b are rotatably attached to the shaft via the rotating portion 11. Will be done. Therefore, the first main landing gear 10a extends upward from the rotating portion 11. When the stepped workbench 1 is not used, the first main landing gear 10a and the second main landing gear 10b are folded so as to be parallel to each other around the rotating portion 11.

天板２０は、例えばアルミニウム合金製であって、略平板状に形成される。天板２０は、一対の主脚１０ａ、１０ｂの高さ方向の途中位置、回動部１１の下方であって、最も上部にある踏桟１３の上方で、第１の主脚１０ａと第２の主脚１０ｂとの間に架設され、作業者の作業床として機能する。したがって、天板２０の上方が作業者の作業空間Ｓ１として形成される。天板２０は、基端２０ａが第１の主脚１０ａに回動自在に軸着され、先端２０ｂ側が第２の主脚１０ｂの踏桟１３ｂ上に載置されることで、水平状態が保持される。また、天板２０は先端２０ｂが第２の主脚１０ｂよりも外方に突出するように設定されている。 The top plate 20 is made of, for example, an aluminum alloy and is formed in a substantially flat plate shape. The top plate 20 is located in the middle of the pair of main landing gears 10a and 10b in the height direction, below the rotating portion 11, and above the uppermost treadle 13, the first main landing gears 10a and the second. It is erected between the main landing gear 10b and functions as a work floor for workers. Therefore, the upper part of the top plate 20 is formed as the worker's work space S1. The top plate 20 is maintained in a horizontal state by rotatably attaching the base end 20a to the first main landing gear 10a and placing the tip 20b side on the tread 13b of the second main landing gear 10b. Will be done. Further, the top plate 20 is set so that the tip 20b protrudes outward from the second main landing gear 10b.

脚立式作業台１を使用するときは、第２の主脚１０ｂを壁面等の作業箇所に向けるようにする。この場合に、天板２０の先端２０ｂが第２の主脚１０ｂよりも外方に突出するようにしているので、天板２０を壁面等の作業箇所に近接させて配置することができ、作業性の向上を図ることができる。また、作業者は第１の主脚１０ａ側から昇降することになるので、第１の主脚１０ａは第２の主脚１０ｂよりも踏桟１３の間隔を狭く、踏桟１３の数も多くしている。 When using the stepped workbench 1, the second main landing gear 10b is directed toward a work place such as a wall surface. In this case, since the tip 20b of the top plate 20 projects outward from the second main landing gear 10b, the top plate 20 can be arranged close to a work place such as a wall surface, and the work can be performed. It is possible to improve the sex. Further, since the worker moves up and down from the first main landing gear 10a side, the distance between the treads 13 of the first main landing gear 10a is narrower than that of the second main landing gear 10b, and the number of treads 13 is large. doing.

第１の枠部材３０は、例えばアルミニウム合金製であって、略コ字状をなすように形成される。ここで、略コ字状とは、コ字状やＵ字状のように、平面視において、四方のうち三方が閉じ、一方だけが開放されている形状をいうものとする。
第１の枠部材３０は、開放部側の端部がそれぞれ第１の主脚１０ａの支柱１２の上端部にブラケット３１を介して取り付けられ、先端３０ａが前方を向くように、天板２０に対して平行或いはやや上向きに配置される。なお、第１の枠部材３０は、天板２０に対して寝かせるように配置されればよく、天板２０に対してやや下向きに配置されてもよい。ここで、天板２０に対して寝かせるように配置するとは、側面視において、第１の枠部材３０が水平面に対して±４５°未満の角度にあることを意味する。
第１の枠部材３０は、幅（両端部間の距離）が第１の主脚１０ａの支柱１２間の距離と略同一であり、また、先端３０ａが天板２０の先端２０ｂのちょうど上方、或いは天板２０の先端２０ｂよりもやや内側の上方に位置するように設定される。 The first frame member 30 is made of, for example, an aluminum alloy and is formed so as to form a substantially U shape. Here, the substantially U-shape means a shape such as a U-shape or a U-shape in which three of the four sides are closed and only one is open in a plan view.
The first frame member 30 is attached to the top plate 20 so that the ends on the open portion side are attached to the upper ends of the columns 12 of the first main landing gear 10a via the brackets 31 and the tips 30a face forward. On the other hand, it is arranged parallel to or slightly upward. The first frame member 30 may be arranged so as to lie down on the top plate 20, and may be arranged slightly downward with respect to the top plate 20. Here, arranging the top plate 20 so as to lie down means that the first frame member 30 is at an angle of less than ± 45 ° with respect to the horizontal plane in a side view.
The width (distance between both ends) of the first frame member 30 is substantially the same as the distance between the columns 12 of the first main landing gear 10a, and the tip 30a is just above the tip 20b of the top plate 20. Alternatively, it is set so as to be located slightly inside and above the tip 20b of the top plate 20.

脚立式作業台１を使用しないときには、第１の枠部材３０を回動させて、先端３０ａを下向きにして第１の主脚１０ａと略平行になるように収容することができる。
ブラケット３１は、第１の枠部材３０の先端３０ａを前方に向かせた状態（以下、使用状態という）と、第１の主脚１０ａと略平行になるように収容した状態（以下、収容状態という）とで選択的に保持することができる。
このようにした第１の枠部材３０は、天板２０の上方であって、更に回動部１１よりも上方に配置される。具体的に、第１の枠部材３０の先端３０ａは、天板２０に立つ作業者の膝上から腰ぐらいまでの高さ、例えば天板２０から５５０ｍｍ以上９００ｍｍ以下の高さＨ１に位置する。 When the landing gear type workbench 1 is not used, the first frame member 30 can be rotated to accommodate the first main landing gear 10a so that the tip 30a faces downward and is substantially parallel to the first main landing gear 10a.
The bracket 31 is housed so that the tip 30a of the first frame member 30 is directed forward (hereinafter referred to as a used state) and the first main landing gear 10a is substantially parallel to the bracket 31 (hereinafter referred to as a housed state). It can be selectively held with).
The first frame member 30 as described above is arranged above the top plate 20 and further above the rotating portion 11. Specifically, the tip 30a of the first frame member 30 is located at a height from above the knee to about the waist of a worker standing on the top plate 20, for example, at a height H1 of 550 mm or more and 900 mm or less from the top plate 20.

第２の枠部材４０は、例えばアルミニウム合金製のパイプ材からなり、略コ字状をなすように形成される。ここで、略コ字状とは、コ字状やＵ字状のように、平面視において、四方のうち三方が閉じ、一方だけが開放されている形状をいうものとする。
第２の枠部材４０は、開放部側の端部がそれぞれ第１の主脚１０ａの支柱１２の上端部にブラケット４１を介して取り付けられ、先端４０ａが後方を向くように、第１の枠部材３０よりも立たせるように配置される。
第２の枠部材４０は、幅（両端部間の距離）が第１の主脚１０ａの支柱１２間の距離と略同一であり、また、先端４０ａが天板２０の基端２０ａのちょうど上方、或いは天板２０の基端２０ａよりもやや内側の上方に位置するように設定される。 The second frame member 40 is made of, for example, a pipe material made of an aluminum alloy, and is formed so as to form a substantially U shape. Here, the substantially U-shape means a shape such as a U-shape or a U-shape in which three of the four sides are closed and only one is open in a plan view.
The second frame member 40 is attached to the upper end of the support column 12 of the first main landing gear 10a via the bracket 41 at the ends on the open portion side, respectively, so that the tip 40a faces rearward. It is arranged so as to stand up from the member 30.
The width (distance between both ends) of the second frame member 40 is substantially the same as the distance between the columns 12 of the first main landing gear 10a, and the tip 40a is just above the base end 20a of the top plate 20. Alternatively, it is set so as to be located slightly inside and above the base end 20a of the top plate 20.

脚立式作業台１を使用しないときには、第２の枠部材４０を前方に回動させて、先端４０ａを上向きにして第１の主脚１０ａと略平行になるように収容することができる。
ブラケット４１は、第２の枠部材４０の先端４０ａを後方に向かせた状態（以下、使用状態という）と、第１の主脚１０ａと略平行になるように収容した状態（以下、収容状態という）とで選択的に保持することができる。
このようにした第２の枠部材４０は、天板２０の上方であって、更に回動部１１よりも上方に配置される。そして、第１の枠部材３０は、第２の主脚１０ｂ側で高さＨ１で作業空間Ｓ１を包囲するのに対して、第２の枠部材４０は、第１の主脚１０ａ側で高さＨ１よりも高い位置（高さＨ２）で作業空間Ｓ１を包囲する。具体的に、第２の枠部材４０の先端４０ａは、天板２０に立つ作業者の背中の高さ（腰上から首下ぐらいまでの高さ）、例えば天板２０から１０００ｍｍ以上１５００ｍｍ以下の高さＨ２に位置する。 When the landing gear type workbench 1 is not used, the second frame member 40 can be rotated forward to accommodate the second frame member 40 so that the tip 40a faces upward and is substantially parallel to the first main landing gear 10a.
The bracket 41 is housed so that the tip 40a of the second frame member 40 faces rearward (hereinafter referred to as a used state) and substantially parallel to the first main landing gear 10a (hereinafter referred to as a housed state). It can be selectively held with).
The second frame member 40 as described above is arranged above the top plate 20 and further above the rotating portion 11. The first frame member 30 surrounds the work space S1 at a height H1 on the second main landing gear 10b side, whereas the second frame member 40 is high on the first main landing gear 10a side. The work space S1 is surrounded at a position higher than the height H1 (height H2). Specifically, the tip 40a of the second frame member 40 is the height of the back of the worker standing on the top plate 20 (height from above the waist to below the neck), for example, 1000 mm or more and 1500 mm or less from the top plate 20. Located at height H2.

踏桟カバー１００は、図２に示すように、作業者が昇降する踏桟である踏桟１３ａに取り付けられる。ここで踏桟カバー１００の詳細を説明する前に、図４を参照して、踏桟カバー１００が取り付けられる踏桟１３ａの断面形状について説明する。図４は、踏桟１３ａ及び踏桟カバー１００の断面図である。
踏桟１３ａは、上面５０と、一対の側面５１と、下面５２と、突起部５３とを備える。上面５０は略水平である。一対の側面５１には、後方の側面５１ａと前方の側面５１ｂとがある。側面５１ａは、上面５０の後方の端部から、後方に傾斜するように下方に伸びる。側面５１ｂは、上面５０の前方の端部から、後方に傾斜するように下方に伸び、後方の側面５１ａと略平行になる。下面５２は、側面５１ａの下方の端部と側面５１ｂの下方の端部とを繋ぐ面であり、下方に凸となる円弧状の形状である。
突起部５３には、後方の突起部５３ａ及び前方の突起部５３ｂの２つがある。突起部５３ａは、上面５０の後端部から後方に突出する。突起部５３ｂは、上面５０の前端部から前方に突出する。突起部５３ａ及び突起部５３ｂは、上面５０の長さ方向（左右方向）の一方の端部から他方の端部にわたって設けられる。
なお、踏桟１３ａは中空であり、軽量化されている。 As shown in FIG. 2, the tread cover 100 is attached to the tread 13a, which is a tread for the operator to move up and down. Here, before explaining the details of the tread cover 100, the cross-sectional shape of the tread 13a to which the tread cover 100 is attached will be described with reference to FIG. FIG. 4 is a cross-sectional view of the tread 13a and the tread cover 100.
The tread 13a includes an upper surface 50, a pair of side surfaces 51, a lower surface 52, and a protrusion 53. The upper surface 50 is substantially horizontal. The pair of side surfaces 51 includes a rear side surface 51a and a front side surface 51b. The side surface 51a extends downward from the rear end of the upper surface 50 so as to be inclined rearward. The side surface 51b extends downward from the front end of the upper surface 50 so as to be inclined rearward, and is substantially parallel to the rear side surface 51a. The lower surface 52 is a surface that connects the lower end of the side surface 51a and the lower end of the side surface 51b, and has a circular arc shape that is convex downward.
There are two protrusions 53, a rear protrusion 53a and a front protrusion 53b. The protrusion 53a projects rearward from the rear end of the upper surface 50. The protruding portion 53b projects forward from the front end portion of the upper surface 50. The protrusion 53a and the protrusion 53b are provided from one end of the upper surface 50 in the length direction (left-right direction) to the other end.
The tread 13a is hollow and lightweight.

次に、図３及び図４を参照して、踏桟カバー１００の詳細を説明する。
踏桟カバー１００は、上面部１１０と、突出部１２０と、側面部１３０と、滑り止め部１４０とを備える。
上面部１１０は、図４に示す通り、踏桟１３ａの上面５０を覆う部材である。また、上面部１１０は、図３に示す通り、上方からみたとき、幅方向（前後方向）の長さが、長さ方向（左右方向）の長さより短い矩形の形状となる。
突出部１２０は、上面部１１０の幅方向の端部であって、後述する側面部１３０の上端から、踏桟１３ａが配置される側の方向と反対方向（外方）に伸びる部材である。突出部１２０には、上面部１１０の後方に位置する突出部１２０ａ、及び、上面部１１０の前方に位置する突出部１２０ｂの２つがある。突出部１２０ａは上面部１１０の後端部から後方に伸び、突出部１２０ｂは上面部１１０の前端部から前方に伸びる。それぞれの突出部１２０は、上面部１１０の長さ方向の一方の端部から他方の端部にわたって形成される。 Next, the details of the tread cover 100 will be described with reference to FIGS. 3 and 4.
The tread cover 100 includes an upper surface portion 110, a protruding portion 120, a side surface portion 130, and a non-slip portion 140.
As shown in FIG. 4, the upper surface portion 110 is a member that covers the upper surface 50 of the tread 13a. Further, as shown in FIG. 3, the upper surface portion 110 has a rectangular shape in which the length in the width direction (front-back direction) is shorter than the length in the length direction (left-right direction) when viewed from above.
The projecting portion 120 is an end portion in the width direction of the upper surface portion 110, and is a member extending from the upper end of the side surface portion 130, which will be described later, in a direction (outward) opposite to the direction on which the tread 13a is arranged. There are two types of protrusions 120, a protrusion 120a located behind the upper surface 110 and a protrusion 120b located in front of the upper surface 110. The protruding portion 120a extends rearward from the rear end portion of the upper surface portion 110, and the protruding portion 120b extends forward from the front end portion of the upper surface portion 110. Each protrusion 120 is formed from one end of the upper surface 110 in the length direction to the other end.

それぞれの突出部１２０は、上面延長部１２１と折り返し部１２２とを備える。上面延長部１２１は、突出部１２０の上方に配置され、上面部１１０の幅方向の端部から外方に伸びる。折り返し部１２２は、突出部１２０の下方に配置され、上面延長部１２１の外方の端部に接続し、踏桟１３ａが配置される側の方向（内方）に伸びる。折り返し部１２２は、上面延長部１２１と離間して対向する領域を備える。したがって、突出部１２０には、上面延長部１２１及び折り返し部１２２で囲まれた空間Ｓ２が形成される。
図４に示す通り、踏桟カバー１００が踏桟１３ａに取り付けられたとき、後方の空間Ｓ２には踏桟１３ａの突起部５３ａが入り込み、前方の空間Ｓ２には踏桟１３ａの突起部５３ｂが入り込む。このとき、踏桟１３ａの突起部５３ａは、空間Ｓ２の後方の端部までは到達しない。同様に、踏桟１３ｂの突起部５３ｂは、空間Ｓ２の前方の端部までは到達しない。 Each protruding portion 120 includes an upper surface extending portion 121 and a folded portion 122. The upper surface extension portion 121 is arranged above the protruding portion 120 and extends outward from the widthwise end portion of the upper surface portion 110. The folded-back portion 122 is arranged below the protruding portion 120, connects to the outer end portion of the upper surface extension portion 121, and extends in the direction (inward) on the side where the tread 13a is arranged. The folded-back portion 122 includes a region facing the upper surface extension portion 121 at a distance. Therefore, a space S2 surrounded by the upper surface extending portion 121 and the folded portion 122 is formed in the protruding portion 120.
As shown in FIG. 4, when the tread cover 100 is attached to the tread 13a, the protrusion 53a of the tread 13a enters the rear space S2, and the protrusion 53b of the tread 13a enters the front space S2. Get in. At this time, the protrusion 53a of the tread 13a does not reach the rear end of the space S2. Similarly, the protrusion 53b of the tread 13b does not reach the front end of the space S2.

側面部１３０は、図４に示す通り、踏桟１３ａの側面５１の少なくとも一部を覆う部材である。側面部１３０には、後方の側面５１ａを覆う側面部１３０ａ、及び、前方の側面５１ｂを覆う側面部１３０ｂの２つがある。側面部１３０ａは、突出部１２０ａの折り返し部１２２の内方の端部から下方に伸びる。側面部１３０ｂは、突出部１２０ｂの折り返し部１２２における内方の端部から下方に伸びる。それぞれの側面部１３０は、突出部１２０の折り返し部１２２における長さ方向の一方の端部から他方の端部にわたって形成される。側面部１３０の外方には、上下方向の略中間部分に、長さ方向に伸びる溝１３１が形成される。 As shown in FIG. 4, the side surface portion 130 is a member that covers at least a part of the side surface 51 of the tread 13a. The side surface portion 130 includes a side surface portion 130a that covers the rear side surface 51a and a side surface portion 130b that covers the front side surface 51b. The side surface portion 130a extends downward from the inner end portion of the folded-back portion 122 of the protruding portion 120a. The side surface portion 130b extends downward from the inner end portion of the folded portion 122 of the protruding portion 120b. Each side surface 130 is formed from one end in the longitudinal direction of the folded portion 122 of the protrusion 120 to the other end. A groove 131 extending in the length direction is formed on the outer side of the side surface portion 130 in a substantially intermediate portion in the vertical direction.

滑り止め部１４０は、上面部１１０及び突出部１２０の上面に配置され、長さ方向に伸びる突起である。滑り止め部１４０の幅方向の長さは、上面部１１０の幅方向の長さより短い。滑り止め部１４０は、幅方向に並んで複数形成される。本実施形態では、滑り止め部１４０は５個形成されるが、５個に限定されるもではない。滑り止め部１４０の上面には、幅方向の中央に溝１４１が形成される。溝１４１は、滑り止め部１４０の長さ方向の一方の端部から他方の端部にわたって形成される。 The non-slip portion 140 is a protrusion that is arranged on the upper surface of the upper surface portion 110 and the protruding portion 120 and extends in the length direction. The length of the non-slip portion 140 in the width direction is shorter than the length of the upper surface portion 110 in the width direction. A plurality of non-slip portions 140 are formed side by side in the width direction. In the present embodiment, five non-slip portions 140 are formed, but the number is not limited to five. A groove 141 is formed in the center in the width direction on the upper surface of the non-slip portion 140. The groove 141 is formed from one end of the non-slip portion 140 in the length direction to the other end.

上面部１１０の上面、突出部１２０ａ及び突出部１２０ｂの上面が、全体として踏桟カバー１００の上面（カバー上面１１１）をなす。カバー上面１１１の後方には段差１５０が形成される。カバー上面１１１における段差１５０の後方を第１領域１６０、カバー上面１１１における段差１５０の前方を第２領域１６１とすると、図４に示す通り、第１領域１６０は第２領域１６１より上方に位置する。 The upper surface of the upper surface portion 110, the upper surface of the protruding portion 120a and the upper surface of the protruding portion 120b form the upper surface of the tread cover 100 (cover upper surface 111) as a whole. A step 150 is formed behind the cover upper surface 111. Assuming that the rear of the step 150 on the cover upper surface 111 is the first region 160 and the front of the step 150 on the cover upper surface 111 is the second region 161 as shown in FIG. 4, the first region 160 is located above the second region 161. ..

踏桟カバー１００は、例えば、塩化ビニールを用いた押出成形によって一体的に形成されている。踏桟カバー１００のうち、上面部１１０、突出部１２０及び側面部１３０は黄色に着色された硬質塩化ビニールで形成され、滑り止め部１４０は黒色に着色された軟質塩化ビニールで形成されている。
踏桟カバー１００は、塩化ビニールで形成されていて弾力性があり、踏桟１３ａへの着脱が可能である。図４に示す通り、踏桟１３ａの突起部５３ａを後方の空間Ｓ２に入れ込み、突起部５３ｂを前方の空間Ｓ２に入れ込むことで、踏桟カバー１００を踏桟１３ａに取付けできる。 The tread cover 100 is integrally formed by, for example, extrusion molding using vinyl chloride. Of the tread cover 100, the upper surface portion 110, the protruding portion 120, and the side surface portion 130 are formed of hard vinyl chloride colored in yellow, and the non-slip portion 140 is formed of soft vinyl chloride colored in black.
The tread cover 100 is made of vinyl chloride and has elasticity, and can be attached to and detached from the tread 13a. As shown in FIG. 4, the tread cover 100 can be attached to the tread 13a by inserting the protrusion 53a of the tread 13a into the rear space S2 and the protrusion 53b into the front space S2.

以上説明した通り、踏桟カバー１００は、突出部１２０を備える。よって、踏桟カバー１００のカバー上面１１１の幅方向の長さは、踏桟１３ａの上面５０及び突起部５３の上面からなる踏桟上面の幅方向の長さより長い。したがって、踏桟１３ａに踏桟カバー１００を取り付けることで、踏桟１３ａを昇降する作業者の足場の安定性を向上させることができる。 As described above, the tread cover 100 includes a protrusion 120. Therefore, the length in the width direction of the cover upper surface 111 of the tread cover 100 is longer than the length in the width direction of the tread upper surface including the upper surface 50 of the tread 13a and the upper surface of the protrusion 53. Therefore, by attaching the tread cover 100 to the tread 13a, the stability of the scaffolding of the operator who raises and lowers the tread 13a can be improved.

また、上面部１１０、突出部１２０及び側面部１３０は黄色に着色されている。したがって、踏桟カバー１００の視認性が向上する。特に本実施形態では滑り止め部１４０は黒色に着色されているため、踏桟カバー１００を全体としてみたとき、黄色と黒色とのコントラストが現れ、このコントラストも視認性の向上に寄与している。
また、滑り止め部１４０には軟質塩化ビニールが使われる。よって、作業者が昇降時に滑り止め部１４０に足を載せることで、滑り止め部１４０が変形してグリップ力が生じ、作業者の足が滑ることが防止される。特に、滑り止め部１４０には溝１４１が形成される。よって、滑り止め部１４０には、溝１４１を挟んで２つの突起ができることになる。したがって、作業者が昇降時に滑り止め部１４０に足を載せるとき、滑り止め部１４０の２つの突起のそれぞれが変形することになり、グリップ力が高まる。 Further, the upper surface portion 110, the protruding portion 120 and the side surface portion 130 are colored yellow. Therefore, the visibility of the tread cover 100 is improved. In particular, in the present embodiment, since the non-slip portion 140 is colored black, a contrast between yellow and black appears when the tread cover 100 is viewed as a whole, and this contrast also contributes to the improvement of visibility.
Further, soft vinyl chloride is used for the non-slip portion 140. Therefore, when the operator puts his / her foot on the non-slip portion 140 when moving up and down, the anti-slip portion 140 is deformed to generate a grip force, and the operator's foot is prevented from slipping. In particular, a groove 141 is formed in the non-slip portion 140. Therefore, the non-slip portion 140 has two protrusions with the groove 141 interposed therebetween. Therefore, when the operator puts his / her foot on the non-slip portion 140 during ascending / descending, each of the two protrusions of the non-slip portion 140 is deformed, and the grip force is enhanced.

また、踏桟カバー１００のカバー上面１１１における後方、すなわち、作業者が昇降する方の側には段差１５０がある。そして、段差１５０の後方の第１領域１６０は、段差１５０の前方の第２領域１６１より上方に位置する。したがって、作業者が昇降するとき、作業者の靴底が段差１５０にかかりやすくなり、作業者の昇降時の安定性が向上する。
また、側面部１３０には溝１３１が形成される。この溝１３１を用いて、ネジやブラインドリベット等によって踏桟カバー１００を踏桟１３ａに固定できる。例えば、踏桟カバー１００を踏桟１３ａに取り付けた状態で、溝１３１を案内として、踏桟カバー１００の側面部１３０と踏桟１３ａの側面５１とを貫通する貫通孔を形成する。そして、この貫通孔にネジやブラインドリベット等を通し、踏桟カバー１００を踏桟１３ａに固定する。
また、踏桟カバー１００は、例えば、塩化ビニールを用いた押出成形によって一体的に形成される。よって、塩化ビニールを押出成形し、断面が図４に示す踏桟カバー１００の形状になったものを任意の長さで切断できる。したがって、踏桟１３ａの長さに適した長さの踏桟カバー１００を容易に形成できる。 Further, there is a step 150 on the rear side of the cover upper surface 111 of the tread cover 100, that is, on the side where the operator moves up and down. The first region 160 behind the step 150 is located above the second region 161 in front of the step 150. Therefore, when the worker goes up and down, the sole of the worker is likely to hit the step 150, and the stability of the worker when going up and down is improved.
Further, a groove 131 is formed in the side surface portion 130. Using this groove 131, the tread cover 100 can be fixed to the tread 13a with screws, blind rivets, or the like. For example, with the tread cover 100 attached to the tread 13a, a through hole is formed through the side surface 130 of the tread cover 100 and the side surface 51 of the tread 13a using the groove 131 as a guide. Then, a screw, a blind rivet, or the like is passed through the through hole to fix the tread cover 100 to the tread 13a.
Further, the tread cover 100 is integrally formed by, for example, extrusion molding using vinyl chloride. Therefore, vinyl chloride can be extruded to cut a tread cover 100 having a cross section shown in FIG. 4 having an arbitrary length. Therefore, the tread cover 100 having a length suitable for the length of the tread 13a can be easily formed.

＜第２実施形態＞
上記の踏桟カバー１００は、踏桟１３ａの下面５２を覆う部分を備えない。しかし、踏桟カバーが踏桟１３ａの下面５２を覆う部分を備えるようにしてもよい。このような踏桟カバー２００について、図５を参照して説明する。なお、以降の説明では、既に説明した実施形態と同様の部分については、当該部分と同じ名称や符号を使い、説明を簡略化又は省略する。 <Second Embodiment>
The tread cover 100 does not include a portion that covers the lower surface 52 of the tread 13a. However, the tread cover may include a portion that covers the lower surface 52 of the tread 13a. Such a tread cover 200 will be described with reference to FIG. In the following description, the same names and symbols as those of the parts will be used for the same parts as those in the above-described embodiment, and the description will be simplified or omitted.

踏桟カバー２００は、上面部１１０と、突出部１２０と、側面部２３０と、滑り止め部１４０とを備える。踏桟カバー２００は、さらに、下面部２７０を備える。
側面部２３０は、図４に示す側面部１３０と同様に、踏桟１３ａの側面５１を覆う部材であり、側面５１ａを覆う側面部２３０ａ、及び、側面５１ｂを覆う側面部２３０ｂの２つがある。また、側面部２３０は、図５に示す通り、側面５１の下端部まで伸びるように形成される。 The tread cover 200 includes an upper surface portion 110, a protruding portion 120, a side surface portion 230, and a non-slip portion 140. The tread cover 200 further includes a lower surface portion 270.
Similar to the side surface 130 shown in FIG. 4, the side surface 230 is a member that covers the side surface 51 of the tread 13a, and includes two, a side surface 230a that covers the side surface 51a and a side surface 230b that covers the side surface 51b. Further, as shown in FIG. 5, the side surface portion 230 is formed so as to extend to the lower end portion of the side surface 51.

下面部２７０は、踏桟１３ａの下面５２の少なくとも一部を覆う部材である。下面部２７０には、下面５２の後方を覆う下面部２７０ａ、及び、下面５２の前方を覆う下面部２７０ｂの２つがある。下面部２７０ａは、側面部２３０ａの下端部から内方に伸びる。下面部２７０ｂは、側面部２３０ｂの下端部から内方に伸びる。下面部２７０ａ及び下面部２７０ｂは離間しており、下面部２７０ａ及び下面部２７０ｂの隙間から、踏桟カバー２００を踏桟１３ａに取り付けたり、踏桟カバー２００を踏桟１３ａから取り外したりできる。
踏桟カバー２００は、例えば、塩化ビニールを用いた押出成形によって一体的に形成されている。踏桟カバー１００のうち、上面部１１０、突出部１２０、側面部２３０及び下面部２７０は黄色に着色された硬質塩化ビニールで形成され、滑り止め部１４０は黒色に着色された軟質塩化ビニールで形成されている。
このように、踏桟カバー２００は下面部２７０を備える。したがって、ネジやブラインドリベット等を用いなくても、図４等で説明した踏桟カバー１００と比べて、強固に踏桟１３ａに取り付けられる。 The lower surface portion 270 is a member that covers at least a part of the lower surface 52 of the tread 13a. The lower surface portion 270 includes a lower surface portion 270a that covers the rear of the lower surface 52 and a lower surface portion 270b that covers the front of the lower surface 52. The lower surface portion 270a extends inward from the lower end portion of the side surface portion 230a. The lower surface portion 270b extends inward from the lower end portion of the side surface portion 230b. The lower surface portion 270a and the lower surface portion 270b are separated from each other, and the tread cover 200 can be attached to the tread 13a or the tread cover 200 can be removed from the tread 13a through the gap between the lower surface portion 270a and the lower surface portion 270b.
The tread cover 200 is integrally formed by, for example, extrusion molding using vinyl chloride. Of the tread cover 100, the upper surface portion 110, the protruding portion 120, the side surface portion 230, and the lower surface portion 270 are formed of hard vinyl chloride colored in yellow, and the non-slip portion 140 is formed of soft vinyl chloride colored in black. Has been done.
In this way, the tread cover 200 includes a lower surface portion 270. Therefore, even if screws, blind rivets, or the like are not used, the tread cover 13a can be attached more firmly than the tread cover 100 described with reference to FIG.

＜第３実施形態＞
上記の踏桟カバー２００では、下面部２７０ａ及び下面部２７０ｂは離間する。しかし、下面部は、踏桟１３ａの下面５２を幅方向にわたって覆うようにしてもよい。このような踏桟カバー３００について、図６を参照して説明する。
踏桟カバー３００は、上面部１１０と、突出部１２０と、側面部２３０と、滑り止め部１４０と下面部３７０とを備える。
下面部３７０は、踏桟１３ａの下面５２を幅方向にわたって覆う部材である。下面部３７０は、側面部２３０ａの下端部から側面部２３０ｂの下端部まで伸びる。したがって、図６に示す通り、断面図でみると、踏桟１３ａは、踏桟カバー３００の上面部１１０、突出部１２０、側面部２３０及び下面部３７０で囲まれる。 <Third Embodiment>
In the tread cover 200, the lower surface portion 270a and the lower surface portion 270b are separated from each other. However, the lower surface portion may cover the lower surface 52 of the tread 13a over the width direction. Such a tread cover 300 will be described with reference to FIG.
The tread cover 300 includes an upper surface portion 110, a protruding portion 120, a side surface portion 230, a non-slip portion 140, and a lower surface portion 370.
The lower surface portion 370 is a member that covers the lower surface 52 of the tread 13a over the width direction. The lower surface portion 370 extends from the lower end portion of the side surface portion 230a to the lower end portion of the side surface portion 230b. Therefore, as shown in FIG. 6, in the cross-sectional view, the tread 13a is surrounded by the upper surface 110, the protrusion 120, the side surface 230, and the lower surface 370 of the tread cover 300.

踏桟カバー３００の踏桟１３ａへの取り付けは次のように行う。まず、踏桟１３ａを、図１に示す一対の支柱１２から取り外す。次に、踏桟１３ａを、踏桟カバー３００の上面部１１０、突出部１２０、側面部２３０及び下面部３７０で囲まれる孔に通す。これにより、踏桟カバー３００が踏桟１３ａに取り付けられる。次に、踏桟カバー３００が取り付けられた踏桟１３ａを一対の支柱１２に取り付ける。
このように、踏桟カバー３００は下面部３７０を備え、踏桟１３ａは、上面部１１０、突出部１２０、側面部２３０及び下面部３７０で囲まれる。したがって、脚立式作業台１の使用中に踏桟カバー３００が踏桟１３ａから外れるおそれがない。 The tread cover 300 is attached to the tread 13a as follows. First, the tread 13a is removed from the pair of columns 12 shown in FIG. Next, the tread 13a is passed through a hole surrounded by the upper surface 110, the protrusion 120, the side surface 230, and the lower surface 370 of the tread cover 300. As a result, the tread cover 300 is attached to the tread 13a. Next, the tread 13a to which the tread cover 300 is attached is attached to the pair of columns 12.
As described above, the tread cover 300 includes a lower surface portion 370, and the tread 13a is surrounded by the upper surface portion 110, the protruding portion 120, the side surface portion 230, and the lower surface portion 370. Therefore, there is no possibility that the tread cover 300 will come off from the tread 13a while the stepped workbench 1 is in use.

＜第４実施形態＞
上記の踏桟カバー１００〜３００は側面部１３０を備える。しかし、図７に示す踏桟カバー４００のように、側面部１３０を備えなくてもよい。踏桟カバー４００は側面部１３０を備えないため、図５に示す踏桟カバー２００のような下面部２７０も備えない。
このような踏桟カバー４００であっても、空間Ｓ２に踏桟１３ａの突起部５３が入り込み、踏桟１３ａの突起部５３が踏桟カバー４００の上面延長部１２１及び折り返し部１２２で挟まれる。したがって、踏桟カバー４００を踏桟１３ａに取り付けることができる。 <Fourth Embodiment>
The tread covers 100 to 300 include a side surface portion 130. However, unlike the tread cover 400 shown in FIG. 7, the side surface portion 130 may not be provided. Since the tread cover 400 does not include the side surface portion 130, it also does not include the lower surface portion 270 like the tread cover 200 shown in FIG.
Even in such a tread cover 400, the protrusion 53 of the tread 13a enters the space S2, and the protrusion 53 of the tread 13a is sandwiched between the upper surface extension portion 121 and the folded portion 122 of the tread cover 400. Therefore, the tread cover 400 can be attached to the tread 13a.

＜第５実施形態＞
上記の踏桟１３ａは突起部５３があったが、図８に示す踏桟５１３ａのように、突起部５３はなくてもよい。また、上記の踏桟カバー１００は、上面延長部１２１及び折り返し部１２２で囲まれる空間Ｓ２があったが、図８に示す踏桟カバー５００のように、空間Ｓ２はなく、空間Ｓ２に相当する領域は突出部５２０を構成する部材等で充填されていてもよい。
このように、踏桟カバー５００の突出部５２０の内部に空間Ｓ２はない。よって、突起部５３がない踏桟５１３ａに踏桟カバー５００を取り付けたとき、突出部５２０が必要以上にたわむことが防止される。
なお、上記の踏桟カバー２００〜５００は、踏桟カバー１００と同様に、踏桟１３ａを昇降する作業者の足場の安定性を向上させることができる。また、踏桟カバー２００〜５００の色により、踏桟カバー２００〜５００の視認性が向上する。また、滑り止め部１４０によってグリップ力が向上する。また、作業者が昇降するとき、作業者の靴底が段差１５０にかかりやすくなる。 <Fifth Embodiment>
Although the tread 13a has a protrusion 53, the tread 53 may not be provided as in the tread 513a shown in FIG. Further, the tread cover 100 has a space S2 surrounded by an upper surface extension portion 121 and a folded-back portion 122, but unlike the tread cover 500 shown in FIG. 8, there is no space S2 and corresponds to the space S2. The region may be filled with a member or the like constituting the protrusion 520.
As described above, there is no space S2 inside the protruding portion 520 of the tread cover 500. Therefore, when the tread cover 500 is attached to the tread 513a without the protrusion 53, the protrusion 520 is prevented from bending more than necessary.
The tread covers 200 to 500 can improve the stability of the scaffolding of the operator who moves up and down the tread 13a, similarly to the tread covers 100. Further, the visibility of the tread covers 200 to 500 is improved by the colors of the tread covers 200 to 500. In addition, the non-slip portion 140 improves the grip force. Further, when the worker goes up and down, the sole of the worker is likely to touch the step 150.

＜その他の実施形態＞
上記の各実施形態の踏桟カバーでは、滑り止め部１４０は軟質塩化ビニールで形成され、上面部１１０及び突出部１２０等その他の部分は硬質塩化ビニールで形成されている。しかし、踏桟カバーには塩化ビニール以外の樹脂が使われてもよい。この場合でも、上面部１１０及び突出部１２０等には、滑り止め部１４０より硬い樹脂をつかう。ここで、樹脂の硬さは例えば次のように比較して判断する。まず、比較する２つの樹脂のそれぞれに一定の荷重を加える。そして、変形量が小さい方の樹脂を、変形量が大きい方の樹脂と比較して硬い樹脂であると判断する。 <Other Embodiments>
In the tread cover of each of the above embodiments, the non-slip portion 140 is made of soft vinyl chloride, and other parts such as the upper surface portion 110 and the protruding portion 120 are made of hard vinyl chloride. However, a resin other than vinyl chloride may be used for the tread cover. Even in this case, a resin harder than the non-slip portion 140 is used for the upper surface portion 110, the protruding portion 120, and the like. Here, the hardness of the resin is determined by comparing, for example, as follows. First, a constant load is applied to each of the two resins to be compared. Then, it is determined that the resin having the smaller amount of deformation is a harder resin than the resin having the larger amount of deformation.

上記の各実施形態の踏桟カバーでは、滑り止め部１４０が黒色に着色され、上面部１１０及び突出部１２０等その他の部分は黄色に着色されている。しかし、滑り止め部１４０を黄色の補色である青紫にしてもよい。また、上面部１１０及び突出部１２０等の色を、黄色以外の視認性の高い色とし、滑り止め部１４０を黒色又は上面部１１０及び突出部１２０等の色の補色としてもよい。視認性の高い色の例として、彩度が高い暖色系の色である赤色やオレンジがある。これにより、踏桟カバーの視認性が向上する。
また、踏桟カバーの全体を、黄色にしたり、黄色以外の視認性の高い色にしたりしてもよい。また、踏桟カバーに使われる色は、上記の色以外でもよく、踏桟１３ａ以外の色、例えば一般的な踏桟１３ａの色であるシルバー以外の色にしてもよい。この場合であっても、踏桟カバーの視認性が確保される。 In the tread cover of each of the above embodiments, the non-slip portion 140 is colored black, and other parts such as the upper surface portion 110 and the protruding portion 120 are colored yellow. However, the non-slip portion 140 may be bluish purple, which is a complementary color of yellow. Further, the color of the upper surface portion 110 and the protruding portion 120 and the like may be a color having high visibility other than yellow, and the non-slip portion 140 may be black or a complementary color of the colors of the upper surface portion 110 and the protruding portion 120 and the like. Examples of highly visible colors are red and orange, which are warm colors with high saturation. This improves the visibility of the tread cover.
Further, the entire tread cover may be yellow or may be a highly visible color other than yellow. Further, the color used for the tread cover may be a color other than the above-mentioned color, and may be a color other than the tread 13a, for example, a color other than silver, which is a general tread 13a color. Even in this case, the visibility of the tread cover is ensured.

また、上記の各実施形態では、例えば図４に示す踏桟カバー１００のように空間Ｓ２がある踏桟カバーは、突起部５３を備える踏桟１３ａに使われた。しかし、空間Ｓ２がある踏桟カバーを、図８に示すような突起部がない踏桟５１３ａに使ってもよい。この場合、踏桟カバーを取り付けることで、踏桟５１３ａの幅方向の長さが十分に長くなり、踏桟５１３ａを昇降する作業者の足場の安定性を向上させることができる。
また、上記の各実施形態では、滑り止め部１４０は、上面部１１０及び突出部１２０の上面の長さ方向に伸びる形状であるが、滑り止め部１４０はその他の形状であってもよい。例えば、上方から見たとき、円形や多角形状であってもよい。 Further, in each of the above embodiments, the tread cover having the space S2, such as the tread cover 100 shown in FIG. 4, was used for the tread 13a provided with the protrusion 53. However, the tread cover with the space S2 may be used for the tread 513a having no protrusion as shown in FIG. In this case, by attaching the tread cover, the length of the tread 513a in the width direction becomes sufficiently long, and the stability of the scaffolding of the operator who moves up and down the tread 513a can be improved.
Further, in each of the above embodiments, the non-slip portion 140 has a shape extending in the length direction of the upper surface portion 110 and the upper surface portion 120, but the non-slip portion 140 may have another shape. For example, when viewed from above, it may be circular or polygonal.

また、上記の各実施形態の踏桟カバーは突出部を備える。しかし、例えば図８に示す踏桟５１３ａのように突起部がない踏桟に使われる踏桟カバーは突出部を備えなくてもよい。突出部を備えない踏桟カバーは、上面部１１０の幅方向の端部から側面部１３０が伸びる。
突出部を備えない踏桟カバーであっても、上記の通り、上面部１１０、突出部１２０、側面部１３０及び滑り止め部１４０は黄色又は黒色等に着色されているため、踏桟カバー１００の視認性が向上する。また、滑り止め部１４０には軟質塩化ビニールが使われるため、作業者の足が滑ることが防止される。また、上面部１１０の上面にある段差１５０により、作業者の靴底が段差１５０にかかりやすくなる。 Further, the tread cover of each of the above embodiments includes a protruding portion. However, the tread cover used for a tread without a protrusion, such as the tread 513a shown in FIG. 8, does not have to have a protrusion. In the tread cover having no protruding portion, the side surface portion 130 extends from the end portion in the width direction of the upper surface portion 110.
Even if the tread cover does not have a protruding portion, as described above, the upper surface portion 110, the protruding portion 120, the side surface portion 130, and the non-slip portion 140 are colored in yellow, black, or the like. Visibility is improved. Further, since soft vinyl chloride is used for the non-slip portion 140, the operator's feet are prevented from slipping. Further, the step 150 on the upper surface of the upper surface portion 110 makes it easier for the sole of the worker to touch the step 150.

また、上記の各実施形態の踏桟カバーは、脚立式作業台１の踏桟１３ａ、５１３ａに取り付けられた。しかし、天板と、天板の両端に取り付けられて、水平になるように天板を支える一対の主脚とを備える可搬式作業台の踏桟に、上記の各実施形態の踏桟カバーを取り付けて使用してもよい。また、その他の作業台の踏桟、脚立の踏桟、又は、ハシゴの踏桟に上記の各実施形態の踏桟カバーを取り付けて使用してもよい。 Further, the tread covers of each of the above embodiments were attached to the treads 13a and 513a of the stepped workbench 1. However, the tread covers of each of the above embodiments are attached to the treads of a portable workbench provided with a top plate and a pair of main landing gears attached to both ends of the top plate to support the top plate so as to be horizontal. It may be attached and used. Further, the tread cover of each of the above embodiments may be attached to the tread of another workbench, the tread of a stepladder, or the tread of a ladder.

１ 脚立式作業台、１３ａ 踏桟、１００ 踏桟カバー、１１０ 上面部、１２０ 突出部、１３０ 側面部、１４０ 滑り止め部 1 stepped workbench, 13a tread, 100 tread cover, 110 top surface, 120 protrusion, 130 side surface, 140 non-slip part

Claims (6)

踏桟に取り付けられる踏桟カバーであって、
前記踏桟の上面の少なくとも一部を覆う上面部と、
前記上面部から前記踏桟が配置される側の方向と反対方向に伸びる上面延長部、及び、前記上面延長部の下方に配置され前記踏桟が配置される側の方向へ伸びて前記上面延長部と対向する折り返し部、を有する突出部と、を備え、
前記突出部は、
前記上面延長部と前記折り返し部とで囲まれる空間に前記踏桟の上面の端部から突出する突起部が入り込むことを特徴とする踏桟カバー。 It is a tread cover that can be attached to the tread.
An upper surface portion that covers at least a part of the upper surface of the tread
An upper surface extension portion extending from the upper surface portion in a direction opposite to the direction on which the tread rail is arranged, and an upper surface extension portion arranged below the upper surface extension portion and extending in a direction on the side on which the tread rail is arranged. A protrusion having a folded portion facing the portion,
The protrusion is
A tread cover characterized in that a protrusion protruding from an end portion of the upper surface of the tread enters a space surrounded by the upper surface extension portion and the folded portion. 前記突出部は、
前記上面部の一方の端部および他方の端部からそれぞれ伸びることを特徴とする請求項１に記載の踏桟カバー。 The protrusion is
The tread cover according to claim 1, wherein the tread cover extends from one end portion and the other end portion of the upper surface portion, respectively. 前記突出部の上面は、
前記上面部の上面よりも上方に位置することを特徴とする請求項１に記載の踏桟カバー。 The upper surface of the protrusion
The tread cover according to claim 1, wherein the tread cover is located above the upper surface of the upper surface portion. 前記上面部、及び、前記突出部は、前記踏桟とは異なる色に着色されていることを特徴とする請求項１乃至３のいずれか１項に記載の踏桟カバー。 The tread cover according to any one of claims 1 to 3 , wherein the upper surface portion and the protruding portion are colored in a color different from that of the tread. 前記上面部の上面、及び、前記突出部の上面の少なくとも一方に配置され、樹脂で形成された滑り止め部をさらに備え、
前記上面部、及び、前記突出部は、前記滑り止め部より硬い樹脂で形成されたことを特徴とする請求項１乃至４のいずれか１項に記載の踏桟カバー。 Further provided with a non-slip portion disposed on at least one of the upper surface of the upper surface portion and the upper surface of the protruding portion and formed of a resin.
The tread cover according to any one of claims 1 to 4 , wherein the upper surface portion and the protruding portion are formed of a resin harder than the non-slip portion. 前記上面部の上面、及び、前記突出部の上面からなるカバー上面には段差があることを特徴とする請求項１乃至５のいずれか１項に記載の踏桟カバー。 The tread cover according to any one of claims 1 to 5 , wherein the upper surface of the upper surface portion and the upper surface of the cover including the upper surface of the protruding portion have a step.
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JP7421174B2 (en) * 2019-11-26 2024-01-24 長谷川工業株式会社 stepladder
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