JP2021155967A - Laying structure of iron plate - Google Patents

Laying structure of iron plate Download PDF

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JP2021155967A
JP2021155967A JP2020055728A JP2020055728A JP2021155967A JP 2021155967 A JP2021155967 A JP 2021155967A JP 2020055728 A JP2020055728 A JP 2020055728A JP 2020055728 A JP2020055728 A JP 2020055728A JP 2021155967 A JP2021155967 A JP 2021155967A
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iron plate
upper iron
laying structure
spacer
door
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JP7431080B2 (en
Inventor
翔 酒井
Sho Sakai
翔 酒井
清貴 佐鯉
Kiyotaka Sakoi
清貴 佐鯉
康行 大森
Yasuyuki Omori
康行 大森
昇 枝村
Noboru Edamura
昇 枝村
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Higano Komuten Co Ltd
Kasetsu Lease Co Ltd
Daiwa House Industry Co Ltd
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Higano Komuten Co Ltd
Kasetsu Lease Co Ltd
Daiwa House Industry Co Ltd
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Abstract

To provide a laying structure of an iron plate adapted to an entrance of a construction site.SOLUTION: A laying structure 1 of an iron plate is provided with an upper iron plate 3 provided on a passage surface 2 to a site and extending along an entrance crossing the passage surface 2, and a spacer 4 for supporting the upper iron plate 3 by floating it upward from the passage surface 2 at a position retreated inward from both side parts of the upper iron plate 3.SELECTED DRAWING: Figure 2

Description

本発明は、鉄板の敷設構造に関し、特に、敷地への通路面に設けられる鉄板の敷設構造に関する。 The present invention relates to an iron plate laying structure, and more particularly to an iron plate laying structure provided on a passage surface to a site.

従来から、たとえば土木、建築などの工事現場では、地面上に敷鉄板を敷設して車両などの走行を容易にする技術が存在する。 Conventionally, at construction sites such as civil engineering and construction, there has been a technique of laying an iron plate on the ground to facilitate the running of a vehicle or the like.

たとえば実用新案登録第２５８２５９５号公報（特許文献１）には、工事現場などの軟弱地盤上に複数の敷鉄板を敷き詰める際、敷鉄板同士が当接する部分に孔を有する凹部を設け、孔同士を連結部材で連結する技術が提案されている。 For example, in Utility Model Registration No. 2582595 (Patent Document 1), when a plurality of iron plates are laid on soft ground such as a construction site, a recess having a hole is provided in a portion where the iron plates come into contact with each other, and the holes are formed. A technique for connecting with a connecting member has been proposed.

実用新案登録第２５８２５９５号公報Utility Model Registration No. 2582595

特許文献１の敷鉄板は、その上を車両などが走行しても位置ずれのおそれがなく、敷地内に敷き詰められる敷鉄板に適応した構造となっている。しかし、工事現場の出入口には門や扉などが設けられることが一般的であるものの、工事現場への出入口に適応するような鉄板の敷設構造とはなっていない。 The iron plate of Patent Document 1 has a structure suitable for the iron plate spread on the site without fear of misalignment even if a vehicle or the like travels on the iron plate. However, although gates and doors are generally provided at the entrance and exit of the construction site, the iron plate laying structure is not suitable for the entrance and exit to the construction site.

本発明は、上記のような課題を解決するためになされたものであって、その目的は、工事現場の出入口に適応する鉄板の敷設構造を提供することである。 The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an iron plate laying structure suitable for an entrance / exit of a construction site.

本発明の一態様に係る鉄板の敷設構造は、敷地への通路面に設けられるものであり、通路面を横切る出入口に沿って延びる上鉄板と、上鉄板の両側部から内側に後退した位置で上鉄板を通路面から上方に浮かして支持するスペーサとを備える。 The iron plate laying structure according to one aspect of the present invention is provided on the passage surface to the site, and is provided at a position where the upper iron plate extends along the entrance and exit crossing the passage surface and is retracted inward from both sides of the upper iron plate. It is provided with a spacer that supports the upper iron plate by floating it upward from the passage surface.

好ましくは、通路面のうち上鉄板の下方領域に位置する部分は、下鉄板によって形成されている。 Preferably, the portion of the passage surface located in the lower region of the upper iron plate is formed by the lower iron plate.

好ましくは、スペーサの上下方向寸法は１０ｍｍ以上３０ｍｍ以下である。 Preferably, the vertical dimension of the spacer is 10 mm or more and 30 mm or less.

好ましくは、スペーサは、鉄製であり、上鉄板に溶接で固定されている。 Preferably, the spacer is made of iron and is welded to the upper iron plate.

好ましくは、上鉄板に沿って移動可能な扉と、扉の下端部の両側部から内向きに突出する内向き突起部とをさらに備え、内向き突起部は、上鉄板の両側部から上鉄板の下面に入り込んでいる。 Preferably, the door is further provided with a door that is movable along the upper iron plate and inward protrusions that project inward from both sides of the lower end of the door, and the inward protrusions are upper iron plates from both sides of the upper iron plate. It has entered the underside of the door.

好ましくは、扉は、上鉄板上を転動する一対の車輪を含む。 Preferably, the door comprises a pair of wheels rolling on a top iron plate.

好ましくは、上鉄板のスペーサからの突出寸法は１０ｍｍ以上６０ｍｍ以下である。 Preferably, the protruding dimension of the upper iron plate from the spacer is 10 mm or more and 60 mm or less.

本発明の鉄板の敷設構造は、工事現場の出入口に適応することができる。 The iron plate laying structure of the present invention can be adapted to the entrance and exit of a construction site.

本発明の実施の形態に係る鉄板の敷設構造を示し、（Ａ）は工事現場の出入口を示す外観図であり、（Ｂ）は上鉄板付近を拡大した外観図である。The iron plate laying structure according to the embodiment of the present invention is shown, (A) is an external view showing an entrance / exit of a construction site, and (B) is an enlarged external view of the vicinity of the upper iron plate. 本発明の実施の形態に係る鉄板の敷設構造を示す模式的な断面図である。It is a schematic cross-sectional view which shows the laying structure of the iron plate which concerns on embodiment of this invention. 本発明の実施の形態に係る鉄板の敷設構造を示し、（Ａ）は上鉄板と下鉄板の間を掃除している図であり、（Ｂ）は上鉄板上を車両が走行している状態を示す図である。The iron plate laying structure according to the embodiment of the present invention is shown, (A) is a diagram in which the space between the upper iron plate and the lower iron plate is cleaned, and (B) is a state in which a vehicle is running on the upper iron plate. It is a figure which shows.

本発明の実施の形態について図面を参照しながら詳細に説明する。なお、図中同一または相当部分には同一符号を付してその説明は繰返さない。 Embodiments of the present invention will be described in detail with reference to the drawings. The same or corresponding parts in the drawings are designated by the same reference numerals, and the description thereof will not be repeated.

図１〜図３を参照して、本実施の形態に係る鉄板の敷設構造１について説明する。図２において、矢印Ａ１で示す方向を上下方向、矢印Ａ２で示す方向を幅方向という。 The iron plate laying structure 1 according to the present embodiment will be described with reference to FIGS. 1 to 3. In FIG. 2, the direction indicated by the arrow A1 is referred to as a vertical direction, and the direction indicated by the arrow A2 is referred to as a width direction.

図１（Ａ）に示すように、鉄板の敷設構造１は、敷地への通路面に設けられる。具体的には、鉄板の敷設構造１は、工事現場の敷地への通路面を横切る出入口に設けられる。工事現場の出入口は、たとえば重機、トラックなどの重量を有する大型車両が通行するため、強度が要求される。通路面は、地盤などの地面であるが、その上に、たとえばアスファルト、コンクリート、敷鉄板などが敷設されていてもよい。 As shown in FIG. 1A, the iron plate laying structure 1 is provided on the passage surface to the site. Specifically, the iron plate laying structure 1 is provided at an entrance / exit that crosses the passage surface to the site of the construction site. The entrance and exit of the construction site is required to be strong because heavy machinery, trucks, and other heavy vehicles pass through it. The passage surface is the ground such as the ground, but asphalt, concrete, iron plate, etc. may be laid on the ground.

本実施の形態の通路面は、下鉄板２によって形成されており、具体的には、地面上に下鉄板２が敷設されている。下鉄板２は、たとえば矩形形状の敷鉄板などであり、幅広い箇所に対応できるように様々なサイズが用意されている。下鉄板２は、少なくとも工事現場の敷地への通路面に設けられていればよく、工事現場の敷地内に敷き詰められている敷鉄板と同じであってもよい。 The passage surface of the present embodiment is formed by the lower iron plate 2, and specifically, the lower iron plate 2 is laid on the ground. The lower iron plate 2 is, for example, a rectangular iron plate, and various sizes are prepared so as to correspond to a wide range of places. The lower iron plate 2 may be provided at least on the passage surface to the site of the construction site, and may be the same as the iron plate spread on the site of the construction site.

図２に示すように、下鉄板２上には、本実施の形態の鉄板の敷設構造１が設けられる。鉄板の敷設構造１は、上鉄板３と、スペーサ４と、扉５と、内向き突起部６とを備える。以下、それぞれの構成について説明する。なお、以下の説明において、鉄板の敷設構造１を単に敷設構造１という。 As shown in FIG. 2, the iron plate laying structure 1 of the present embodiment is provided on the lower iron plate 2. The iron plate laying structure 1 includes an upper iron plate 3, a spacer 4, a door 5, and an inwardly projecting portion 6. Each configuration will be described below. In the following description, the iron plate laying structure 1 is simply referred to as the laying structure 1.

上鉄板３は、通路面を横切る出入口に沿って延びている。たとえば、工事現場の周りには、工事現場の敷地と敷地以外の領域を区切るフェンスなどが設けられており、その一部分に、フェンスに代えて出入口が設けられている。つまり、上鉄板３は、工事現場の敷地の外縁に沿って延びている。 The upper iron plate 3 extends along a doorway that crosses the passage surface. For example, around the construction site, a fence that separates the site of the construction site from an area other than the site is provided, and a doorway is provided in place of the fence in a part of the fence. That is, the upper iron plate 3 extends along the outer edge of the site of the construction site.

図２に示すように、上鉄板３は、後述する扉５の一対の車輪５２の下方に位置する。上鉄板３は、扉５の開閉方向に沿って延在して延びている。上鉄板３の幅寸法Ｗ１は、一対の車輪５２の間隔よりも大きく、後述する内向き突起部６と一体的に形成される縦部６１間の間隔よりも小さい。 As shown in FIG. 2, the upper iron plate 3 is located below the pair of wheels 52 of the door 5, which will be described later. The upper iron plate 3 extends along the opening / closing direction of the door 5. The width dimension W1 of the upper iron plate 3 is larger than the distance between the pair of wheels 52 and smaller than the distance between the vertical portions 61 integrally formed with the inwardly projecting portion 6 described later.

上鉄板３の厚みＴ１は、たとえば５ｍｍ以上１０ｍｍ以下である。厚みＴ１が５ｍｍ未満であると、車両が上鉄板３上を走行する場合に強度を保つことができない。厚みＴ１が１０ｍｍを超えると、段差が大きくなりすぎる。したがって、厚みＴ１を５ｍｍ以上１０ｍｍ以下にすることで、車両が上鉄板３上を走行した場合の強度を保つことができ、適度な段差にすることができる。また、上鉄板３は、後述するスペーサ４の外側端部から突出寸法Ｗ２だけ突出している。上鉄板３のうち、スペーサ４から両側部に突出している部分を突出部３０という。この突出部３０の突出寸法Ｗ２については、後述する。 The thickness T1 of the upper iron plate 3 is, for example, 5 mm or more and 10 mm or less. If the thickness T1 is less than 5 mm, the strength cannot be maintained when the vehicle travels on the upper iron plate 3. If the thickness T1 exceeds 10 mm, the step becomes too large. Therefore, by setting the thickness T1 to 5 mm or more and 10 mm or less, the strength when the vehicle travels on the upper iron plate 3 can be maintained, and an appropriate step can be obtained. Further, the upper iron plate 3 protrudes from the outer end portion of the spacer 4, which will be described later, by the protruding dimension W2. Of the upper iron plate 3, the portion protruding from the spacer 4 on both sides is referred to as a protruding portion 30. The protrusion dimension W2 of the protrusion 30 will be described later.

スペーサ４は、上鉄板３の両側部から内側に後退した位置に設けられ、上鉄板３を下鉄板２から上方に浮かして支持する。内側とは、矢印Ａ２の幅方向の中央部に近づく方向であり、以下の説明において、内向きともいう。外側とは、矢印Ａ２の幅方向の中央部から離れる方向である。両側部は、矢印Ａ２の幅方向の中央部から最も遠い部分である。 The spacer 4 is provided at a position retracted inward from both side portions of the upper iron plate 3, and supports the upper iron plate 3 by floating upward from the lower iron plate 2. The inside is a direction approaching the central portion in the width direction of the arrow A2, and is also referred to as an inward direction in the following description. The outside is a direction away from the central portion in the width direction of the arrow A2. Both side portions are the portions farthest from the central portion in the width direction of arrow A2.

スペーサ４は、上鉄板３の下面と下鉄板２の上面の間に設けられる。スペーサ４を設けることで、上鉄板３の両側部において、上鉄板３と下鉄板２との間に隙間７を形成する。この隙間７は、両側部に向かって開放する側凹部である。換言すると、隙間７は、上鉄板３の両側部から遠ざかる方向に凹んでいる。隙間７は、スペーサ４の外側側面、上鉄板３のスペーサ４からの突出部分（突出部３０）の下面、および下鉄板２のスペーサ４からの突出部分の上面で形成されている。隙間７は、出入口に沿って延びている。この隙間７には、後述する内向き突起部６が挿入され、隙間７がレールの役割を果たす。 The spacer 4 is provided between the lower surface of the upper iron plate 3 and the upper surface of the lower iron plate 2. By providing the spacer 4, gaps 7 are formed between the upper iron plate 3 and the lower iron plate 2 on both sides of the upper iron plate 3. The gap 7 is a side recess that opens toward both sides. In other words, the gap 7 is recessed in a direction away from both side portions of the upper iron plate 3. The gap 7 is formed on the outer side surface of the spacer 4, the lower surface of the protruding portion (protruding portion 30) of the upper iron plate 3 from the spacer 4, and the upper surface of the protruding portion of the lower iron plate 2 from the spacer 4. The gap 7 extends along the doorway. An inwardly projecting portion 6, which will be described later, is inserted into the gap 7, and the gap 7 serves as a rail.

スペーサ４の上下方向寸法Ｔ２は、たとえば１０ｍｍ以上３０ｍｍ以下である。上下方向寸法Ｔ２が１０ｍｍ未満であると、隙間７に入り込んだ砂利やクズなどのゴミをスムーズに掃き出せず、内向き突起部６のスムーズな移動を阻害するおそれがある。また、上下方向寸法Ｔ２が３０ｍｍを超えると、段差が大きくなりすぎるため、スムーズな車両走行の妨げになる。したがって、上下方向寸法Ｔ２を１０ｍｍ以上３０ｍｍ以下にすることで、隙間７のゴミを掃き出しやすくすることができ、スムーズに車両を走行することが可能となる。 The vertical dimension T2 of the spacer 4 is, for example, 10 mm or more and 30 mm or less. If the vertical dimension T2 is less than 10 mm, dust such as gravel and debris that has entered the gap 7 cannot be smoothly swept out, which may hinder the smooth movement of the inward protrusion 6. Further, if the vertical dimension T2 exceeds 30 mm, the step becomes too large, which hinders smooth vehicle running. Therefore, by setting the vertical dimension T2 to 10 mm or more and 30 mm or less, it is possible to easily sweep out the dust in the gap 7, and the vehicle can run smoothly.

スペーサ４は、上鉄板３の両側部を除き全体的に設けられてもよいし、部分的に設けられてもよい。本実施の形態のスペーサ４は、第１〜３スペーサ４１，４２，４３の３か所設けられている。第１〜３スペーサ４１，４２，４３は、上鉄板３の長手方向に沿って延びている。第１，３スペーサ４１，４３は、一対の車輪５２に対応する位置に設けられ、第２スペーサ４２は、第１，３スペーサ４１，４３の中央位置に設けられる。第１，３スペーサ４１，４３の幅は、車輪５２それぞれの幅と同一かそれよりも大きい。スペーサ４が部分的に設けられる場合、車輪５２の下方位置に設けられていることが好ましい。これにより、車輪５２を上鉄板３上で安定して転動させることができる。 The spacer 4 may be provided entirely or partially except for both side portions of the upper iron plate 3. The spacers 4 of the present embodiment are provided at three locations, the first to third spacers 41, 42, and 43. The first to third spacers 41, 42, 43 extend along the longitudinal direction of the upper iron plate 3. The first and third spacers 41 and 43 are provided at positions corresponding to the pair of wheels 52, and the second spacer 42 is provided at the center position of the first and third spacers 41 and 43. The widths of the first and third spacers 41 and 43 are equal to or larger than the width of each of the wheels 52. When the spacer 4 is partially provided, it is preferably provided at a position below the wheel 52. As a result, the wheel 52 can be stably rolled on the upper iron plate 3.

スペーサ４は、たとえば鉄、合成樹脂などで形成される。スペーサ４が鉄で形成される場合、スペーサ４は、上鉄板３に溶接で固定される。また、スペーサ４は、下鉄板２にも溶接で固定されていることが好ましい。 The spacer 4 is formed of, for example, iron, synthetic resin, or the like. When the spacer 4 is made of iron, the spacer 4 is fixed to the upper iron plate 3 by welding. Further, the spacer 4 is preferably fixed to the lower iron plate 2 by welding.

上鉄板３の突出部３０の突出寸法Ｗ２は、たとえば１０ｍｍ以上６０ｍｍ以下である。突出寸法Ｗ２が１０ｍｍ未満であると、後述する内向き突起部６の引っ掛かりが少なすぎて、レールの役割を果たさない。突出寸法Ｗ２が６０ｍｍを超えると、強度が足りず、車両が上鉄板３上を走行した場合に屈曲するおそれがある。したがって、突出寸法Ｗ２を１０ｍｍ以上６０ｍｍ以下にすることで、レールとして最適な寸法となり、車両が上鉄板３上を走行した場合の強度を保つことができる。 The protrusion dimension W2 of the protrusion 30 of the upper iron plate 3 is, for example, 10 mm or more and 60 mm or less. If the protruding dimension W2 is less than 10 mm, the inwardly projecting portion 6 to be described later is caught too little and does not serve as a rail. If the protruding dimension W2 exceeds 60 mm, the strength is insufficient and there is a risk of bending when the vehicle travels on the upper iron plate 3. Therefore, by setting the protrusion dimension W2 to 10 mm or more and 60 mm or less, the optimum dimension for the rail can be obtained, and the strength when the vehicle travels on the upper iron plate 3 can be maintained.

このように、スペーサ４を用いて、上鉄板３の両側部から内側に後退した位置で上鉄板３を通路面から上方に浮かして支持することで、工事現場の敷地と敷地外との境界ができるため、単に敷鉄板が敷き詰められている鉄板の敷設構造と比較すると、工事現場の出入口に適応するものとなる。 In this way, by using the spacer 4 to support the upper iron plate 3 by floating it upward from the passage surface at a position retracted inward from both sides of the upper iron plate 3, the boundary between the site of the construction site and the outside of the site is established. Therefore, it is more suitable for the entrance and exit of the construction site than the laying structure of the iron plate on which the iron plate is laid.

次に、上鉄板３に沿って移動可能に設けられる扉５について説明する。本実施の形態の扉５は、扉部５０と、扉部５０を下方から支持する支持部５１と、支持部５１の下方に設けられる一対の車輪５２とを含む。 Next, the door 5 provided so as to be movable along the upper iron plate 3 will be described. The door 5 of the present embodiment includes a door portion 50, a support portion 51 that supports the door portion 50 from below, and a pair of wheels 52 provided below the support portion 51.

扉部５０は、出入口に沿って延びている。本実施の形態の扉部５０は、複数の板材で形成される伸縮扉であるが、たとえば引き戸などであってもよい。支持部５１は、扉部５０と一対の車輪５２との間に設けられ、一対の車輪５２を支持し、一対の車輪５２上に設けられる。一対の車輪５２は、上鉄板３上を転動する。支持部５１および一対の車輪５２は、図１（Ａ）に示すように、扉部５０の長手方向にわたって、一定間隔をあけて設けられる。 The door portion 50 extends along the doorway. The door portion 50 of the present embodiment is a telescopic door formed of a plurality of plate materials, but may be, for example, a sliding door. The support portion 51 is provided between the door portion 50 and the pair of wheels 52, supports the pair of wheels 52, and is provided on the pair of wheels 52. The pair of wheels 52 roll on the upper iron plate 3. As shown in FIG. 1A, the support portion 51 and the pair of wheels 52 are provided at regular intervals over the longitudinal direction of the door portion 50.

内向き突起部６は、扉５の下端部の両側部から内向きに突出し、上鉄板３の両側部から上鉄板３の下面に入り込んでいる。具体的には、内向き突起部６は、支持部５１と車輪５２との間に設けられる横材６０と、横材６０の両端から下方に延びる一対の縦材６１と一体的に形成され、縦材６１の下端から内側に突出する。内向き突起部６の上下方向の寸法は、隙間７の上下方向の寸法Ｔ２よりも小さく、半分以下であることが好ましい。 The inwardly projecting portions 6 project inward from both side portions of the lower end portion of the door 5, and enter the lower surface of the upper iron plate 3 from both side portions of the upper iron plate 3. Specifically, the inwardly projecting portion 6 is integrally formed with a cross member 60 provided between the support portion 51 and the wheel 52 and a pair of vertical members 61 extending downward from both ends of the cross member 60. It projects inward from the lower end of the vertical member 61. The vertical dimension of the inwardly projecting portion 6 is smaller than the vertical dimension T2 of the gap 7, and is preferably half or less.

内向き突起部６は、一対の車輪５２の両側部に位置し、一対の車輪５２とともに移動する。上述のように、隙間７は、出入口に沿って延びている。扉５の車輪５２が上鉄板３に沿って移動すると、内向き突起部６が隙間７を移動する。これにより、扉５が出入口に対して歪んだ状態で開閉することがないため、扉５の開閉をスムーズに行うことができる。 The inwardly projecting portions 6 are located on both sides of the pair of wheels 52 and move together with the pair of wheels 52. As mentioned above, the gap 7 extends along the doorway. When the wheel 52 of the door 5 moves along the upper iron plate 3, the inwardly projecting portion 6 moves in the gap 7. As a result, the door 5 does not open and close in a distorted state with respect to the doorway, so that the door 5 can be opened and closed smoothly.

従来の工事現場に設けられるゲートには、上方に向かって開口している凹部を有するレールが地面上に設けられていた。このようなレールの凹部には、泥や砂利などのゴミが詰まりやすいため、従来のゲートではその開閉をスムーズに行えないことがあった。さらに、レールが上方に向かって開口しているため、レールに詰まったゴミを完全に取り除くことが難しかった。本実施の形態の敷設構造１は、レールとして機能する隙間７が側方に向かって開口しているため、上方に向かって開放しているレールよりもゴミが詰まりにくい。さらに、隙間７にゴミが詰まったとしても、図３（Ａ）に示すように、上鉄板３の両側部から、横に寝かせたほうきを差し込んで、隙間７のゴミを掃き出すことができるため、簡単に清掃することができる。 A rail having a recess that opens upward is provided on the ground in a gate provided at a conventional construction site. Since the recesses of such rails are easily clogged with dust such as mud and gravel, conventional gates may not be able to open and close the rails smoothly. Furthermore, since the rail opens upward, it was difficult to completely remove the dust stuck in the rail. In the laying structure 1 of the present embodiment, since the gap 7 functioning as a rail opens toward the side, dust is less likely to be clogged than the rail that opens upward. Further, even if the gap 7 is clogged with dust, as shown in FIG. 3A, the dust in the gap 7 can be swept out by inserting a broom laid sideways from both sides of the upper iron plate 3. It can be easily cleaned.

また、本実施の形態の上鉄板３の突出部３０の突出寸法Ｗ２を１０ｍｍ以上６０ｍｍ以下にし、スペーサ４の上下方向寸法Ｔ２を１０ｍｍ以上３０ｍｍ以下にすることより、図３（Ｂ）に示すように、重機やトラックなどの重量のある車両が上鉄板３上を走行したとしても、強度を保つことができる。さらに、工事現場の敷地と敷地外の境界となる段差を設けることができるが、その段差が車両の通行に影響を及ぼさないため、出入り口に適した構造となる。 Further, as shown in FIG. 3B, the protruding dimension W2 of the protruding portion 30 of the upper iron plate 3 of the present embodiment is set to 10 mm or more and 60 mm or less, and the vertical dimension T2 of the spacer 4 is set to 10 mm or more and 30 mm or less. In addition, even if a heavy vehicle such as a heavy machine or a truck runs on the upper iron plate 3, the strength can be maintained. Further, a step can be provided as a boundary between the site of the construction site and the outside of the site, but since the step does not affect the passage of vehicles, the structure is suitable for the entrance and exit.

本実施の形態の鉄板の敷設構造１は、工場で製造してもよいし、現場で製造してもよい。現場で製造する場合は、工事現場の敷地および工事現場の敷地への通路面上に敷鉄板としての下鉄板２を敷き詰める。出入口に沿って上鉄板３を延在させ、下鉄板２と上鉄板３との間にスペーサ４を介在させて、下鉄板２とスペーサ４を溶接し、上鉄板３とスペーサ４を溶接して上鉄板３の位置を固定する。さらに、上鉄板３の上に扉５を配置し、内向き突起部６を隙間７に差し込む。このように、現場で組み立てる場合は、出入口に当たる部分に上鉄板３とスペーサ４とを溶接するだけでよく、敷鉄板の敷き詰め方を考える必要がないため、簡単に施工することができる。 The iron plate laying structure 1 of the present embodiment may be manufactured at a factory or on-site. In the case of manufacturing at the site, the lower iron plate 2 as the iron plate is spread on the site of the construction site and the passage surface to the site of the construction site. The upper iron plate 3 extends along the doorway, the spacer 4 is interposed between the lower iron plate 2 and the upper iron plate 3, the lower iron plate 2 and the spacer 4 are welded, and the upper iron plate 3 and the spacer 4 are welded. The position of the upper iron plate 3 is fixed. Further, the door 5 is arranged on the upper iron plate 3, and the inwardly projecting portion 6 is inserted into the gap 7. In this way, when assembling on-site, it is only necessary to weld the upper iron plate 3 and the spacer 4 to the portion corresponding to the doorway, and it is not necessary to consider how to lay the iron plate, so that the construction can be easily performed.

なお、本実施の形態の鉄板の敷設構造１は、扉５および内向き突起部６を備えるとして説明したが、少なくとも上鉄板３とスペーサ４とを備えていればよく、上鉄板３上には、たとえば移動可能な中空コーン、フェンスなどが設けられてもよい。 Although the iron plate laying structure 1 of the present embodiment has been described as having the door 5 and the inwardly projecting portion 6, it is sufficient that at least the upper iron plate 3 and the spacer 4 are provided, and the upper iron plate 3 may be provided on the upper iron plate 3. , For example, a movable hollow cone, a fence, etc. may be provided.

また、内向き突起部６は、縦材６１と横材６０と一体的に形成され、車輪５２の側部に設けられていたが、この構成に限定されない。内向き突起部６は、扉５の底部、たとえば扉部５０の下方位置、支持部５１または車輪５２などに設けられていればよいし、たとえば車輪５２の前方または後方などに設けられていてもよい。 Further, the inwardly projecting portion 6 is integrally formed with the vertical member 61 and the horizontal member 60, and is provided on the side portion of the wheel 52, but the present invention is not limited to this configuration. The inwardly projecting portion 6 may be provided at the bottom of the door 5, for example, at a position below the door portion 50, at the support portion 51 or the wheel 52, or may be provided at the front or rear of the wheel 52, for example. good.

また、上記実施の形態の通路面は、下鉄板２によって形成されているとしたが、少なくとも、通路面のうち上鉄板３の下方領域に位置する部分が下鉄板２であればよい。つまり、下鉄板２は、少なくとも上鉄板３と同様に出入り口に沿って延びていればよく、上鉄板３の下方領域以外に位置する通路面は、下鉄板２以外で形成されていてもよい。 Further, although it is assumed that the passage surface of the above embodiment is formed by the lower iron plate 2, at least the portion of the passage surface located in the lower region of the upper iron plate 3 may be the lower iron plate 2. That is, the lower iron plate 2 may extend at least along the doorway like the upper iron plate 3, and the passage surface located outside the lower region of the upper iron plate 3 may be formed by other than the lower iron plate 2.

今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and it is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

１ 鉄板の敷設構造、２ 下鉄板（通路面）、３ 上鉄板、４ スペーサ、５ 扉、６ 内向き突起部、７ 隙間、５２ 車輪。 1 Iron plate laying structure, 2 Lower iron plate (passage surface), 3 Upper iron plate, 4 spacers, 5 doors, 6 inward protrusions, 7 gaps, 52 wheels.

Claims (7)

敷地への通路面に設けられる鉄板の敷設構造であって、
前記通路面を横切る出入口に沿って延びる上鉄板と、
前記上鉄板の両側部から内側に後退した位置で前記上鉄板を前記通路面から上方に浮かして支持するスペーサとを備える、鉄板の敷設構造。 It is an iron plate laying structure provided on the passage surface to the site.
An upper iron plate extending along the doorway that crosses the passage surface,
An iron plate laying structure including a spacer that floats and supports the upper iron plate upward from the passage surface at a position retracted inward from both side portions of the upper iron plate. 前記通路面のうち前記上鉄板の下方領域に位置する部分は、下鉄板によって形成されている、請求項１に記載の鉄板の敷設構造。 The iron plate laying structure according to claim 1, wherein a portion of the passage surface located in the lower region of the upper iron plate is formed by a lower iron plate. 前記スペーサの上下方向寸法は１０ｍｍ以上３０ｍｍ以下である、請求項１または２に記載の鉄板の敷設構造。 The iron plate laying structure according to claim 1 or 2, wherein the vertical dimension of the spacer is 10 mm or more and 30 mm or less. 前記スペーサは、鉄製であり、前記上鉄板に溶接で固定されている、請求項１〜３のいずれかに記載の鉄板の敷設構造。 The iron plate laying structure according to any one of claims 1 to 3, wherein the spacer is made of iron and is fixed to the upper iron plate by welding. 前記上鉄板に沿って移動可能な扉と、
前記扉の下端部の両側部から内向きに突出する内向き突起部とをさらに備え、
前記内向き突起部は、前記上鉄板の両側部から前記上鉄板の下面に入り込んでいる、請求項１〜４のいずれかに記載の鉄板の敷設構造。 A door that can be moved along the upper iron plate and
Further provided with inwardly projecting portions protruding inward from both sides of the lower end portion of the door.
The iron plate laying structure according to any one of claims 1 to 4, wherein the inwardly projecting portions enter the lower surface of the upper iron plate from both side portions of the upper iron plate. 前記扉は、前記上鉄板上を転動する一対の車輪を含む、請求項５に記載の鉄板の敷設構造。 The iron plate laying structure according to claim 5, wherein the door includes a pair of wheels that roll on the upper iron plate. 前記上鉄板の前記スペーサからの突出寸法は１０ｍｍ以上６０ｍｍ以下である、請求項１〜６のいずれかに記載の鉄板の敷設構造。
The iron plate laying structure according to any one of claims 1 to 6, wherein the protrusion dimension of the upper iron plate from the spacer is 10 mm or more and 60 mm or less.
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