JP2010178525A

JP2010178525A - Structure and method for securing trough lid

Info

Publication number: JP2010178525A
Application number: JP2009019006A
Authority: JP
Inventors: Hiroyuki Kanazawa; 浩之金澤; Masanobu Watanabe; 正信渡邊; Kenichi Ito; 健一伊藤; Michiryo Tsuchiya; 道亮土屋; Atsushi Arikawa; 敦有川; Koji Habu; 晃嗣土生; Kensuke Okamoto; 謙介岡本
Original assignee: Furukawa Electric Co Ltd; East Japan Railway Co
Current assignee: Furukawa Electric Co Ltd; East Japan Railway Co
Priority date: 2009-01-30
Filing date: 2009-01-30
Publication date: 2010-08-12
Anticipated expiration: 2029-01-30
Also published as: JP5305517B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for securing a trough lid, which is configured such that sand or soil is difficult to enter through a seam of the trough lid, making opening of the trough lid difficult, and also reliably preventing soaring of the trough lid. <P>SOLUTION: The securing structure of a trough lid includes a trough body 11, a trough lid 13, a securing bracket 15 for attaching both sides of the trough lid to both sidewalls of the trough body, and a connection bracket 17 for connecting the trough lids adjoining each other in length direction. Both side edges of the trough lid 13 is pinched with an upper side lateral plate 29 and a lower side lateral plate 31 of the securing bracket 15, and the upper parts of both sidewalls 21 of the trough body 11 are pinched with vertical plate 27 and an elastic pressing member 33, thus the trough lid 31 is secured to the trough body 11. A lower side overlapping part 23 of the trough lid 13 is inserted in a lower side insert part of the connection bracket 17, and an upper side overlapping part 25 of the trough lid 13 adjoining it is inserted in an upper side inside part of the connection bracket 17, thus adjoining trough lids 13 are connected together. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、トラフのトラフ本体に被せるトラフ蓋を、トラフ本体に固定する構造と、固定方法に関するものである。 The present invention relates to a structure and a fixing method for fixing a trough lid that covers a trough body of the trough to the trough body.

ケーブル敷設等に用いられるトラフは、断面凹形のトラフ本体と、このトラフ本体の上に被せるトラフ蓋とから構成される。従来のトラフは、コンクリート製であったが、コンクリート製のトラフは重いため、敷設工事の際の作業者の負担が大きい。このため最近ではプラスチック製（特にプラスチック製品の廃材を用いた再生プラスチック製）のトラフが使用されるようになってきている。 A trough used for cable laying or the like includes a trough main body having a concave cross section and a trough lid that covers the trough main body. Conventional troughs are made of concrete, but because the troughs made of concrete are heavy, the burden on workers during laying work is great. For this reason, recently, troughs made of plastic (particularly made of recycled plastic using waste plastic products) have come to be used.

プラスチック製のトラフは軽いので、工事作業者の負担は軽減されるが、鉄道線路脇などに敷設した場合、列車通過時の風圧でトラフ蓋がずれたり、外れたりするおそれがある。またトラフ蓋が突風や竜巻で巻き上げられ、線路上に落下したりすると、列車事故の原因となることも考えられる。またトラフ蓋を開けるのも容易であるため、トラフ内に敷設されているケーブル等をいたずらされるおそれもある。 Although the plastic trough is light, the burden on the construction worker is reduced. However, if it is laid on the side of a railway track, the trough lid may be displaced or detached due to the wind pressure when passing through the train. Also, if the trough lid is rolled up by a gust of wind or a tornado and falls on the track, it may cause a train accident. Moreover, since it is easy to open the trough lid, there is a possibility that a cable or the like laid in the trough may be tampered with.

この問題を解決するものとしては、トラフ本体の両側に固定クリップを取り付けて、この固定クリップでトラフ蓋の両側を固定する構造や、トラフ本体の両側にピン受け金具を固定し、このピン受け金具にトラフ蓋を貫通する押さえピンを挿入することで、トラフ蓋を固定する構造などが提案されている（特許文献１、２参照）。 In order to solve this problem, fixing clips are attached to both sides of the trough body, and both sides of the trough lid are fixed with this fixing clip, or pin receiving brackets are fixed to both sides of the trough body. A structure for fixing a trough lid by inserting a pressing pin that penetrates the trough lid has been proposed (see Patent Documents 1 and 2).

また、トラフ蓋は一般に所定長さのものを、端面を突き合わせて敷設していくが、トラフ蓋の端面突き合わせ位置には隙間ができるので、この隙間から砂や土などがトラフ内に入って堆積し、ケーブルの放熱性等を阻害するおそれもある。この問題を解決するには、隣り合うトラフ蓋の端部を重ね合わせる構造にして、端面突き合わせ部（継ぎ目）から砂や土が入らないようにすることが有効である（特許文献３参照）。 A trough lid is generally laid with a predetermined length, but the end faces are laid, but there is a gap at the position where the end face of the trough lid abuts, so sand or earth enters the trough from this gap and accumulates. In addition, there is a risk of hindering the heat dissipation of the cable. In order to solve this problem, it is effective to use a structure in which the ends of adjacent trough lids are overlapped so that sand and soil do not enter from the end face butting portion (seam) (see Patent Document 3).

特開２００５−９４９５８号公報JP 2005-94958 A 特開２００８−１９９７５６号公報JP 2008-199756 A 特開２００６−６０２４号公報JP 2006-6024 A

しかし、特許文献１の固定構造では、トラフ蓋を固定することはできるが、固定クリップを解除すればトラフ蓋を簡単に開けられてしまうので、いたずらを抑制することが困難である。 However, although the trough lid can be fixed with the fixing structure of Patent Document 1, since the trough lid can be easily opened if the fixing clip is released, it is difficult to suppress mischief.

また、引用文献２の固定構造では、トラフ蓋を固定するための部品点数が多く、道具も必要になることから、トラフ蓋固定作業が面倒である。 Moreover, in the fixing structure of the cited document 2, the number of parts for fixing the trough lid is large and a tool is required, so that the trough lid fixing operation is troublesome.

また、引用文献３のトラフ蓋連結構造にすると、トラフ蓋の継ぎ目から砂や土が入り難くすることはできるが、トラフ蓋を「己」字形の連結金具で連結する構造であるため、風圧等によりトラフ蓋の継ぎ目が三角山形に持ち上がるおそれがあるという問題がある。 Further, when the trough lid connecting structure of the cited document 3 is used, sand and soil can be prevented from entering from the seam of the trough lid. However, since the trough lid is connected by a “self” -shaped connecting bracket, wind pressure, etc. Therefore, there is a problem that the seam of the trough lid may be raised in a triangular mountain shape.

本発明の目的は、トラフ蓋の継ぎ目から砂や土が入り難い構造で、トラフ蓋を開け難くすると共に、トラフ蓋の浮き上がりを確実に防止できるトラフ蓋の固定構造と、固定方法を提供することにある。 An object of the present invention is to provide a trough lid fixing structure and a fixing method that can prevent sand or earth from entering from the seam of the trough lid, make it difficult to open the trough lid, and reliably prevent the trough lid from lifting up. It is in.

本発明に係るトラフ蓋の固定構造は、
断面凹形のトラフ本体と、このトラフ本体の上に被せるトラフ蓋と、このトラフ蓋の両側をトラフ本体の両側壁部に取り付ける２つ１組の固定金具と、長手方向に隣り合うトラフ蓋を連結する連結金具とを備え、
前記トラフ蓋は、一端側の厚さ方向の下半部に長手方向へ張り出す下側重なり部を有し、他端側に隣のトラフ蓋の下側重なり部に被さる上側重なり部を有し、前記下側重なり部の幅は前記トラフ本体の両側壁部の内面間隔より大きく設定されているものからなり、
前記２つ１組の固定金具はそれぞれ、トラフ蓋からトラフ本体にかけての側面に当接する縦板部と、この縦板部の上端からトラフ蓋の上面に添うように伸び出す上側横板部と、前記縦板部の上下方向の中間からトラフ蓋の下面に添うように伸び出す下側横板部と、この下側横板部の先端からトラフ本体の側壁部の内面に向けて斜め下方に伸び出す弾性押付片とを一体に有するものからなり、
前記連結金具は、トラフ蓋の上面に当接する上面板部と、トラフ蓋の下面に当接する下面板部と、前記上面板部の長手方向中間部からほぼ前記上側重なり部の厚さ分だけ垂下する上側垂下部と、この上側垂下部の下端から前記下側重なり部の張出方向へほぼ前記下側重なり部の張出長さ分だけ伸び出す中間板部と、この中間板部の先端から前記下面板部の長手方向中間部に垂下する下側垂下部とを一体に有し、前記上面板部と上側垂下部と中間板部とで前記トラフ蓋の上側重なり部が差し込まれる上側差込部が形成され、前記中間板部と下側垂下部と下面板部とで前記トラフ蓋の下側重なり部が差し込まれる下側差込部が形成されているものからなり、
前記２つ１組の固定金具の、上側横板部と下側横板部とでトラフ蓋の両側縁部を挟み付けると共に、縦板部と弾性押付片とでトラフ本体の両側壁部の上部を挟み付けることにより、トラフ蓋をトラフ本体に固定し、前記トラフ蓋の下側重なり部を連結金具の下側差込部に差し込むと共に、その隣のトラフ蓋の上側重なり部を連結金具の上側差込部に差し込むことにより、隣り合うトラフ蓋を連結したことを特徴とするものである。 The trough lid fixing structure according to the present invention is as follows.
A trough body having a concave cross section, a trough lid for covering the trough body, a pair of fixing brackets for attaching both sides of the trough lid to both side walls of the trough body, and a trough lid adjacent in the longitudinal direction. A connecting bracket to connect,
The trough lid has a lower overlapping portion that protrudes in the longitudinal direction in the lower half of the thickness direction on one end side, and an upper overlapping portion that covers the lower overlapping portion of the adjacent trough lid on the other end side. The width of the lower overlapping portion is set to be larger than the inner surface spacing of both side wall portions of the trough body,
Each of the two sets of fixing brackets has a vertical plate portion that contacts the side surface from the trough lid to the trough body, and an upper horizontal plate portion that extends from the upper end of the vertical plate portion so as to follow the upper surface of the trough lid, A lower horizontal plate portion that extends from the middle of the vertical plate portion so as to follow the lower surface of the trough lid, and extends obliquely downward from the tip of the lower horizontal plate portion toward the inner surface of the side wall portion of the trough body. It consists of one that has an elastic pressing piece that comes out integrally,
The connecting bracket is suspended from the upper surface plate portion contacting the upper surface of the trough lid, the lower surface plate portion contacting the lower surface of the trough lid, and the thickness of the upper overlapping portion from the intermediate portion in the longitudinal direction of the upper surface plate portion. From the lower end of the upper hanging part, an intermediate plate part extending substantially in the protruding direction of the lower overlapping part by the protruding length of the lower overlapping part, and the tip of the intermediate plate part An upper side plug that integrally has a lower drooping portion that hangs down in the longitudinal middle portion of the lower surface plate portion, and into which the upper overlapping portion of the trough lid is inserted between the upper surface plate portion, the upper drooping portion, and the intermediate plate portion. A lower insertion part into which the lower overlapping part of the trough lid is inserted with the intermediate plate part, the lower hanging part and the lower plate part,
The upper side plate portion and the lower side plate portion of the pair of fixing brackets sandwich both side edges of the trough lid, and the upper portion of the side wall portions of the trough body by the vertical plate portion and the elastic pressing piece. The trough lid is fixed to the trough body, the lower overlapping portion of the trough lid is inserted into the lower insertion portion of the connecting bracket, and the upper overlapping portion of the adjacent trough lid is connected to the upper side of the connecting bracket. Adjacent trough lids are connected by being inserted into the insertion portion.

本発明に係るトラフ蓋の固定構造において、前記連結金具の、下面板部の下側差込部側の端部には、先端にトラフ蓋下面の凹みの壁部に引っ掛かるフック部を有する弾性係止片が形成されており、下側差込部にトラフ蓋の下側重なり部を差し込み、前記フック部をトラフ蓋下面の凹みの壁部に引っ掛けることにより、連結金具をトラフ蓋に固定できるようになっていることが好ましい。 In the trough lid fixing structure according to the present invention, an elastic member having a hook portion hooked to a recessed wall portion of the lower surface of the trough lid at a tip end of the connecting metal fitting on the lower insertion portion side of the lower surface plate portion. A stop piece is formed, and by inserting the lower overlapping part of the trough lid into the lower insertion part and hooking the hook part on the recessed wall part on the lower surface of the trough lid, the connecting bracket can be fixed to the trough lid It is preferable that

また、本発明に係るトラフ蓋の固定構造において、前記固定金具の上側横板部には下向きに突片が形成され、前記トラフ蓋の上面の固定金具取付位置には前記突片が入る溝が形成されており、前記突片を前記溝に嵌め込むことにより、前記固定金具のトラフ蓋長手方向への移動が阻止されるようになっていることが好ましい。 Further, in the trough lid fixing structure according to the present invention, a protruding piece is formed downward on the upper lateral plate portion of the fixing bracket, and a groove for receiving the protruding piece is provided at the fixing bracket mounting position on the upper surface of the trough lid. It is preferable that the fixing fitting is prevented from moving in the longitudinal direction of the trough lid by fitting the protruding piece into the groove.

また、本発明に係るトラフ蓋の固定構造において、前記２つ１組の固定金具は、トラフ蓋の上側重なり部付近に取り付けられていることが好ましい。 In the trough lid fixing structure according to the present invention, it is preferable that the two sets of fixing brackets are attached in the vicinity of the upper overlapping portion of the trough lid.

また、本発明に係るトラフ蓋の固定方法は、
断面凹形のトラフ本体と、このトラフ本体の上に被せるトラフ蓋と、このトラフ蓋の両側をトラフ本体の両側壁部に取り付ける２つ１組の固定金具と、長手方向に隣り合うトラフ蓋を連結する連結金具とを用い、
前記トラフ蓋は、一端側の厚さ方向の下半部に長手方向へ張り出す下側重なり部を有し、他端側に隣のトラフ蓋の下側重なり部に被さる上側重なり部を有し、前記下側重なり部の幅は前記トラフ本体の両側壁部の内面間隔より大きく設定されているものからなり、
前記２つ１組の固定金具はそれぞれ、トラフ蓋からトラフ本体にかけての側面に当接する縦板部と、この縦板部の上端からトラフ蓋の上面に添うように伸び出す上側横板部と、前記縦板部の上下方向の中間からトラフ蓋の下面に添うように伸び出す下側横板部と、この下側横板部の先端からトラフ本体の側壁部の内面に向けて斜め下方に伸び出す弾性押付片とを一体に有するものからなり、
前記連結金具は、トラフ蓋の上面に当接する上面板部と、トラフ蓋の下面に当接する下面板部と、前記上面板部の長手方向中間部からほぼ前記上側重なり部の厚さ分だけ垂下する上側垂下部と、この上側垂下部の下端から前記下側重なり部の張出方向へほぼ前記下側重なり部の張出長さ分だけ伸び出す中間板部と、この中間板部の先端から前記下面板部の長手方向中間部に垂下する下側垂下部とを一体に有し、前記上面板部と上側垂下部と中間板部とで前記トラフ蓋の上側重なり部が差し込まれる上側差込部が形成され、前記中間板部と下側垂下部と下面板部とで前記トラフ蓋の下側重なり部が差し込まれる下側差込部が形成されているものからなり、
前記２つ１組の固定金具の、上側横板部と下側横板部とでトラフ蓋の両側縁部を挟み付けることにより固定金具をトラフ蓋に取り付け、前記連結金具の下側差込部にトラフ蓋の下側重なり部を差し込むことにより連結金具をトラフ蓋に取り付けた後、前記連結金具の上側差込部に、先にトラフ本体に固定されているトラフ蓋の上側重なり部を差し込み、かつ前記固定金具の縦板部と弾性押付片とでトラフ本体の両側壁部の上部を挟み付けることにより、トラフ蓋をトラフ本体に固定することを特徴とするものである。 Moreover, the trough lid fixing method according to the present invention includes:
A trough body having a concave cross section, a trough lid for covering the trough body, a pair of fixing brackets for attaching both sides of the trough lid to both side walls of the trough body, and a trough lid adjacent in the longitudinal direction. Using connecting brackets to connect,
The trough lid has a lower overlapping portion that protrudes in the longitudinal direction in the lower half of the thickness direction on one end side, and an upper overlapping portion that covers the lower overlapping portion of the adjacent trough lid on the other end side. The width of the lower overlapping portion is set to be larger than the inner surface spacing of both side wall portions of the trough body,
Each of the two sets of fixing brackets has a vertical plate portion that contacts the side surface from the trough lid to the trough body, and an upper horizontal plate portion that extends from the upper end of the vertical plate portion so as to follow the upper surface of the trough lid, A lower horizontal plate portion that extends from the middle of the vertical plate portion so as to follow the lower surface of the trough lid, and extends obliquely downward from the tip of the lower horizontal plate portion toward the inner surface of the side wall portion of the trough body. It consists of one that has an elastic pressing piece that comes out integrally,
The connecting bracket is suspended from the upper surface plate portion contacting the upper surface of the trough lid, the lower surface plate portion contacting the lower surface of the trough lid, and the thickness of the upper overlapping portion from the longitudinal intermediate portion of the upper surface plate portion. From the lower end of the upper hanging part, an intermediate plate part extending substantially in the protruding direction of the lower overlapping part by the protruding length of the lower overlapping part, and the tip of the intermediate plate part An upper side plug that integrally includes a lower drooping portion that hangs down in the middle portion in the longitudinal direction of the lower surface plate portion, and into which the upper overlapping portion of the trough lid is inserted between the upper surface plate portion, the upper drooping portion, and the intermediate plate portion. A lower insertion part into which the lower overlapping part of the trough lid is inserted with the intermediate plate part, the lower hanging part and the lower plate part,
The fixing bracket is attached to the trough lid by sandwiching both side edges of the trough lid between the upper side plate portion and the lower side plate portion of the pair of fixing brackets, and the lower insertion portion of the connecting bracket After attaching the connecting bracket to the trough lid by inserting the lower overlapping portion of the trough lid into the upper insertion portion of the connecting bracket, the upper overlapping portion of the trough lid previously fixed to the trough body is inserted, In addition, the trough lid is fixed to the trough body by sandwiching the upper portions of the side wall portions of the trough body between the vertical plate portion and the elastic pressing piece of the fixing bracket.

本発明に係るトラフ固定構造又はトラフ固定方法を利用することにより、長手方向に敷設されたトラフ本体に、トラフ蓋を被せて固定したトラフ線路を敷設することができ、トラフ線路を構成することができる。 By using the trough fixing structure or the trough fixing method according to the present invention, it is possible to lay a trough track that is fixed by covering the trough body laid in the longitudinal direction with a trough lid, and to configure the trough track. it can.

本発明によれば、トラフ蓋を敷設した場合、隣り合うトラフ蓋の下側重なり部と上側重なり部が上下に重なり合う構成になるため、隣り合うトラフ蓋の隙間から砂や砂利などが入り込むのを防止できる。また、連結金具の上面板部がトラフ蓋の上面側の継ぎ目に跨ってトラフ蓋の上面に当接し、下面板部がトラフ蓋の下面側の継ぎ目に跨ってトラフ蓋の下面に当接するため、トラフ蓋の継ぎ目の部分が三角山形に持ち上がるおそれもなくなり、トラフ蓋の連結状態を安定に維持することができる。さらに、トラフ蓋の両側縁が固定金具によってトラフ本体の両側壁部に固定されるため、連結されたトラフ蓋の浮き上がりを確実に防止することができる。しかも固定金具は、上側横板部と下側横板部とでトラフ蓋の両側縁部を挟み付けると共に、縦板部（の下側差込部以下の部分）と弾性押付片とでトラフ本体の両側壁部の上部を挟み付ける構造であるため、トラフ蓋及びトラフ本体への取り付けを、道具を用いることなく簡単に行うことができる。 According to the present invention, when the trough lid is laid, the lower overlapping portion and the upper overlapping portion of the adjacent trough lids are vertically overlapped, so that sand, gravel, etc. enter from the gap between the adjacent trough lids. Can be prevented. In addition, since the upper surface plate portion of the connecting bracket straddles the upper surface of the trough lid across the seam on the upper surface side of the trough lid, and the lower surface plate portion contacts the lower surface of the trough lid across the seam on the lower surface side of the trough lid, There is no possibility that the seam portion of the trough lid is lifted into a triangular mountain shape, and the connected state of the trough lid can be stably maintained. Furthermore, since both side edges of the trough lid are fixed to the both side walls of the trough body by the fixing bracket, it is possible to reliably prevent the connected trough lid from being lifted. In addition, the fixing bracket clamps both side edges of the trough lid between the upper horizontal plate portion and the lower horizontal plate portion, and the trough main body includes the vertical plate portion (the portion below the lower insertion portion) and the elastic pressing piece. Since it is the structure which clamps the upper part of the both-sides wall part, attachment to a trough lid and a trough main body can be easily performed without using a tool.

また、連結金具の、下面板部の下側差込部側の端部に、先端にトラフ本体の下面の凹みの壁部に引っ掛かるフック部を有する弾性係止片を形成しておけば、下側差込部にトラフ蓋の下側重なり部を差し込み、前記フック部をトラフ本体下面の凹みの壁部に引っ掛けることで、連結金具をトラフ蓋に簡単に取り付けることができる。このためトラフ蓋の敷設作業を効率よく行うことができる。 In addition, if an elastic locking piece having a hook portion hooked to the wall of the recess on the lower surface of the trough body is formed at the end of the lower end plate portion on the lower insertion portion side of the connecting bracket, The connecting bracket can be easily attached to the trough lid by inserting the lower overlapping portion of the trough lid into the side insertion portion and hooking the hook portion on the recessed wall portion on the lower surface of the trough body. For this reason, the laying operation | work of a trough cover can be performed efficiently.

また、固定金具の上側横板部から下向きに突片を形成し、トラフ蓋の上面の固定金具取付位置に前記突片が入る溝を形成しておけば、固定金具をトラフ蓋に取り付ける際に前記突片を前記溝に嵌め込むことにより、固定金具のトラフ蓋長手方向への移動が阻止されるので、トラフ蓋の固定状態を安定に維持することができる。 In addition, if a protruding piece is formed downward from the upper lateral plate portion of the fixing bracket, and a groove is formed in the fixing bracket mounting position on the upper surface of the trough lid, the groove can be inserted into the trough lid when the fixing bracket is attached to the trough lid. By fitting the projecting piece into the groove, the movement of the fixture in the longitudinal direction of the trough lid is prevented, so that the fixed state of the trough lid can be stably maintained.

また、固定金具をトラフ蓋の上側重なり部付近に取り付けておくと、トラフ蓋のトラフ本体への固定と、トラフ蓋同士の連結が接近した位置で行われるため、トラフ蓋の固定状態をより安定させることができる。 In addition, if the fixing bracket is attached in the vicinity of the upper overlapping part of the trough lid, the trough lid is fixed to the trough body and the trough lids are connected in a close position, so that the trough lid is fixed more stably. Can be made.

本発明に係るトラフ蓋固定構造の一実施例を示す、（Ａ）は平面図、（Ｂ）は（Ａ）のＢ−Ｂ線断面図、（Ｃ）はトラフ蓋の下側重なり部側から見た断面図。1 shows an embodiment of a trough lid fixing structure according to the present invention, (A) is a plan view, (B) is a cross-sectional view taken along line BB of (A), and (C) is from a lower overlapping portion side of the trough lid. Cross section seen. 図１の固定構造に使用した、（Ａ）は固定金具の斜視図、（Ｂ）は連結金具の斜視図。1A is a perspective view of a fixing metal fitting, and FIG. 2B is a perspective view of a connecting metal fitting used in the fixing structure of FIG. 本発明に係るトラフ蓋固定方法で、トラフ蓋に固定金具及び連結金具を取り付けた状態を示す、（Ａ）は平面図、（Ｂ）は（Ａ）のＢ−Ｂ線断面図、（Ｃ）は底面図、（Ｄ）は正面図、（Ｅ）は背面図。The trough lid fixing method which concerns on this invention shows the state which attached the fixing metal fitting and the connection metal fitting to the trough cover, (A) is a top view, (B) is the BB sectional drawing of (A), (C). Is a bottom view, (D) is a front view, and (E) is a rear view. トラフ蓋への固定金具の取付部を示す、図３のＸ−Ｘ線における断面図。Sectional drawing in the XX line of FIG. 3 which shows the attachment part of the fixing metal fitting to a trough lid.

以下、本発明の実施例を、図面を参照して詳細に説明する。図１〜図４は本発明の一実施例を示す。図において、１１はトラフ本体、１３はトラフ本体１１の上に被せるトラフ蓋、１５はトラフ蓋１３をトラフ本体１１に固定する固定金具、１７は長手方向に隣り合うトラフ蓋１３、１３を連結する連結金具である。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 4 show an embodiment of the present invention. In the figure, 11 is a trough body, 13 is a trough lid that covers the trough body 11, 15 is a fixture for fixing the trough lid 13 to the trough body 11, and 17 is connected to the trough lids 13 and 13 adjacent in the longitudinal direction. It is a connecting bracket.

トラフ本体１１は、プラスチック製で、底板部１９と両側壁部２１を有する断面凹形のもので、所定長さのものを長手方向に端面を突き合わせて敷設される。 The trough body 11 is made of plastic and has a concave cross section having a bottom plate portion 19 and both side wall portions 21, and a trough body 11 is laid with its end face abutted in the longitudinal direction.

トラフ蓋１３は、プラスチック製で、所定長さの板状のもので、これも長手方向に端面を突き合わせて敷設される。トラフ蓋１３は、一端側の厚さ方向の下半部に長手方向に張り出す下側重なり部２３を有し、他端側に隣のトラフ蓋１３の下側重なり部２３に被さる上側重なり部２５を有している。下側重なり部２３の幅はトラフ本体１１の両側壁部２１の内面間隔より大きく、外面間隔より小さく設定され、上側重なり部２５の両側は下側重なり部２３の両側面を覆うように形成されている。これにより、トラフ本体１１上にトラフ蓋１３を敷設する場合、隣り合うトラフ蓋１３の下側重なり部２３と上側重なり部２５が重なり合うように敷設することにより、トラフ蓋１３の継ぎ目から砂や土がトラフ本体１１内に入り込まないようになる。 The trough lid 13 is made of plastic and has a plate shape with a predetermined length, and this is also laid with its end faces butted in the longitudinal direction. The trough lid 13 has a lower overlapping portion 23 projecting in the longitudinal direction in the lower half of the thickness direction on one end side, and an upper overlapping portion covering the lower overlapping portion 23 of the adjacent trough lid 13 on the other end side. 25. The width of the lower overlapping portion 23 is set to be larger than the inner surface interval of both side wall portions 21 of the trough body 11 and smaller than the outer surface interval, and both sides of the upper overlapping portion 25 are formed to cover both side surfaces of the lower overlapping portion 23. ing. As a result, when the trough lid 13 is laid on the trough main body 11, the lower overlapping portion 23 and the upper overlapping portion 25 of the adjacent trough lids 13 are laid so that they overlap each other. Does not enter the trough body 11.

固定金具１５は、トラフ蓋１３の両側縁をトラフ本体１１の両側壁部２１に取り付けるため２つ１組で使用される。各固定金具１５はそれぞれ、図１（Ｃ）及び図２（Ａ）に示すようにトラフ蓋１３からトラフ本体１１にかけての側面に当接する縦板部２７と、この縦板部２７の上端からトラフ蓋１３の上面に添うように伸び出す上側横板部２９と、前記縦板部２７の上下方向の中間からトラフ蓋１３の下面に添うように伸び出す下側横板部３１と、この下側横板部３１の先端からトラフ本体１１の側壁部２１の内面に向けて斜め下方に伸び出す弾性押付片３３とを一体に有するものである。 The fixing brackets 15 are used in pairs to attach both side edges of the trough lid 13 to the side wall portions 21 of the trough body 11. As shown in FIGS. 1 (C) and 2 (A), each fixing bracket 15 has a vertical plate portion 27 that contacts the side surface from the trough lid 13 to the trough body 11, and a trough from the upper end of the vertical plate portion 27. An upper horizontal plate portion 29 extending so as to follow the upper surface of the lid 13, a lower horizontal plate portion 31 extending so as to follow the lower surface of the trough lid 13 from the middle in the vertical direction of the vertical plate portion 27, and this lower side An elastic pressing piece 33 that extends obliquely downward from the tip of the lateral plate portion 31 toward the inner surface of the side wall portion 21 of the trough body 11 is integrally provided.

弾性押付片３３の下端には、側壁部２１の内面に向けて斜め上向きに折り返されたガイド片３５が形成されている。このガイド片３５はトラフ本体１１の側壁部２１上部への固定金具１５の取り付けを容易に行うためのものである。なお、トラフ本体１１の側壁部２１の内面の、ガイド片３５先端部との対向部分には、窪みを形成しておくことが望ましい。このような窪みを形成しておくと、ガイド片３５の先端部が窪みに引っ掛かるため、固定金具１５をトラフ本体１１の側壁部２１に、より強固に固定できる。また、上側横板部２９の両側には、下向きに突片３７が形成されている。この突片３７は、固定金具１５がトラフ蓋長手方向へ移動するのを阻止するためのものである(後述)。 A guide piece 35 is formed at the lower end of the elastic pressing piece 33 and is folded back obliquely upward toward the inner surface of the side wall portion 21. This guide piece 35 is for easily attaching the fixing bracket 15 to the upper portion of the side wall portion 21 of the trough body 11. In addition, it is desirable to form a recess in the inner surface of the side wall portion 21 of the trough body 11 at a portion facing the tip portion of the guide piece 35. If such a dent is formed, the distal end portion of the guide piece 35 is caught in the dent, so that the fixing bracket 15 can be more firmly fixed to the side wall portion 21 of the trough body 11. Further, projecting pieces 37 are formed on both sides of the upper lateral plate portion 29 in a downward direction. The projecting piece 37 is for preventing the fixture 15 from moving in the longitudinal direction of the trough lid (described later).

また、連結金具１７は、図１（Ｂ）及び図２（Ｂ）に示すように、トラフ蓋１３の上面側の継ぎ目に跨ってトラフ蓋１３の上面に当接する上面板部３９と、トラフ蓋１３の下面側の継ぎ目に跨ってトラフ蓋１３の下面に当接する下面板部４１と、前記上面板部３９の長手方向中間部からほぼ上側重なり部２５の厚さ分だけ垂下する上側垂下部４３と、この上側垂下部４３の下端から前記下側重なり部２３の張出方向へほぼ前記下側重なり部２３の張出長さ分だけ伸び出す中間板部４５と、この中間板部４５の先端から前記下面板部４１の長手方向中間部に垂下する下側垂下部４７とを一体に有するものである。これにより、上面板部３９と上側垂下部４３と中間板部４５とでトラフ蓋の上側重なり部２５が差し込まれる上側差込部４９が形成され、かつ中間板部４５と下側垂下部４７と下面板部４１とでトラフ蓋の下側重なり部２３が差し込まれる下側差込部５１が形成されている。 Further, as shown in FIGS. 1B and 2B, the connecting bracket 17 includes an upper surface plate portion 39 that abuts the upper surface of the trough lid 13 across the seam on the upper surface side of the trough lid 13, and the trough lid. A lower plate 41 that contacts the lower surface of the trough lid 13 across the seam on the lower surface side of the upper plate 13, and an upper hanging portion 43 that hangs down from the middle portion in the longitudinal direction of the upper plate 39 by the thickness of the upper overlapping portion 25. And an intermediate plate portion 45 extending from the lower end of the upper drooping portion 43 in the protruding direction of the lower overlapping portion 23 by the protruding length of the lower overlapping portion 23, and the tip of the intermediate plate portion 45 And a lower drooping portion 47 that hangs down in the middle in the longitudinal direction of the lower surface plate portion 41. Thus, the upper plate portion 39, the upper drooping portion 43, and the intermediate plate portion 45 form an upper insertion portion 49 into which the upper overlapping portion 25 of the trough lid is inserted, and the intermediate plate portion 45, the lower drooping portion 47, A lower insertion portion 51 into which the lower overlapping portion 23 of the trough lid is inserted is formed with the lower surface plate portion 41.

また、連結金具１７の、下面板部４１の下側差込部５１側の端部には、先端にフック部５５を有する弾性係止片５３が形成されている。この弾性係止片５３は、連結金具１７をトラフ蓋１５に確実に固定するためのものである（後述）。 Further, an elastic locking piece 53 having a hook portion 55 at the tip is formed at the end of the connecting metal member 17 on the lower insertion portion 51 side of the lower surface plate portion 41. This elastic locking piece 53 is for securely fixing the connecting fitting 17 to the trough lid 15 (described later).

固定金具１５及び連結金具１７は、トラフ蓋１３を敷設しながらトラフ蓋に取り付けてもよいが、トラフ蓋１３を敷設する前に、図３のようにトラフ蓋１３に取り付けておくことが好ましい。すなわち、２つ１組の固定金具１５は、上側横板部２９と下側横板部３１とでトラフ蓋１３の両側縁部を挟み付けることにより、トラフ蓋１３の上側重なり部２５付近に取り付けられる。トラフ蓋１３の上面の固定金具取付位置には、図４に示すように、固定金具１５の突片３７が入る溝５７が形成されており、この溝５７に前記突片３７を嵌め込むことにより、固定金具１５のトラフ蓋長手方向への移動（位置ずれ）が阻止されるようになっている。 The fixing bracket 15 and the connecting bracket 17 may be attached to the trough lid while laying the trough lid 13, but are preferably attached to the trough lid 13 as shown in FIG. 3 before laying the trough lid 13. That is, the set of two fixing brackets 15 is attached near the upper overlapping portion 25 of the trough lid 13 by sandwiching both side edges of the trough lid 13 between the upper lateral plate portion 29 and the lower lateral plate portion 31. It is done. As shown in FIG. 4, a groove 57 into which the protruding piece 37 of the fixing metal 15 is inserted is formed at the fixing bracket mounting position on the upper surface of the trough lid 13. By fitting the protruding piece 37 into this groove 57, The movement (positional deviation) of the fixture 15 in the longitudinal direction of the trough lid is prevented.

なお、図３に示すトラフ蓋１３は、トラフ蓋１３の下側重なり部２３付近にも溝５７が形成され、この位置にも固定金具を取り付けることができるようになっている。しかし、トラフ蓋１３の下側重なり部２３付近に固定金具を取り付けると、連結金具１７との関係で、トラフ蓋の敷設作業がやり難くなるので、固定金具１５は図３のようにトラフ蓋１３の上側重なり部２５付近のみに取り付けることが好ましい。 The trough lid 13 shown in FIG. 3 has a groove 57 also formed in the vicinity of the lower overlapping portion 23 of the trough lid 13, and a fixing bracket can be attached to this position. However, if a fixing bracket is attached in the vicinity of the lower overlapping portion 23 of the trough lid 13, it is difficult to lay the trough lid because of the connection with the coupling bracket 17, so that the fixing bracket 15 is connected to the trough lid 13 as shown in FIG. 3. It is preferable to attach only to the vicinity of the upper overlap portion 25.

また、図３に示すトラフ蓋１３は、軽量化のため、下面に凹み５９が設けられ、この凹み５９内に縦横に補強リブ６１が形成されている。さらにトラフ蓋１３の下面には、トラフ蓋１３をトラフ本体１１に被せた際に、トラフ本体１１の両側壁部２１の内側に入ってトラフ蓋１３が横移動しないように位置決めする位置決め片６３が形成されている（図１では図示を省略）。 Further, the trough lid 13 shown in FIG. 3 is provided with a recess 59 on the lower surface for weight reduction, and reinforcing ribs 61 are formed in the recess 59 vertically and horizontally. Further, on the lower surface of the trough lid 13, there is a positioning piece 63 for positioning the trough lid 13 so as not to move laterally by entering inside the side wall portions 21 of the trough main body 11 when the trough lid 13 is put on the trough main body 11. It is formed (not shown in FIG. 1).

一方、連結金具１７は、その下側差込部５１（図２（Ｂ）参照）にトラフ蓋１３の下側重なり部２３を差し込み、フック部５５をトラフ蓋１３の下面の凹み５９の壁部６５に引っ掛けることにより、トラフ蓋１３に取り付けられる。 On the other hand, the connecting bracket 17 is inserted into the lower insertion portion 51 (see FIG. 2B) of the lower overlapping portion 23 of the trough lid 13, and the hook portion 55 is a wall portion of the recess 59 on the lower surface of the trough lid 13. By being hooked on 65, it is attached to the trough lid 13.

トラフ蓋１３に図３のように固定金具１５及び連結金具１７を取り付けておくと、トラフ蓋１３を敷設する場合には、一つ前にトラフ本体に被せられたトラフ蓋の上側重なり部の下に、次に被せるトラフ蓋１３の下側重なり部２３を差し込みながら、当該トラフ蓋１３の上側重なり部２５側（後端側）を押し下げればよい。すると、連結金具１７の上側差込部４９に一つ前のトラフ蓋の上側重なり部が差し込まれて、隣り合うトラフ蓋を連結することができ、固定金具１５の縦板部２７（の下側差込部５１以下の部分）と弾性押付片３３とがトラフ本体１１の両側壁部２１の上部を挟み付けて、トラフ蓋１３をトラフ本体１１に固定することができる。この作業を繰り返すことで、図１のようなトラフ蓋固定構造を簡単に構成することができる。 When the trough lid 13 is attached to the trough lid 13 as shown in FIG. 3, when the trough lid 13 is laid, it is below the upper overlapping portion of the trough lid previously covered with the trough body. In addition, the upper overlapping portion 25 side (rear end side) of the trough lid 13 may be pushed down while inserting the lower overlapping portion 23 of the trough lid 13 to be covered next. Then, the upper overlapping portion of the previous trough lid is inserted into the upper insertion portion 49 of the connecting bracket 17 so that adjacent trough lids can be connected, and the vertical plate portion 27 (lower side of the fixing bracket 15 can be connected. The portion below the insertion portion 51) and the elastic pressing piece 33 sandwich the upper portions of the side wall portions 21 of the trough body 11, and the trough lid 13 can be fixed to the trough body 11. By repeating this operation, the trough lid fixing structure as shown in FIG. 1 can be easily configured.

１１：トラフ本体
１３：トラフ蓋
１５：固定金具
１７：連結金具
１９：底板部
２１：側壁部
２３：下側重なり部
２５：上側重なり部
２７：縦板部
２９：上側横板部
３１：下側横板部
３３：弾性押付片
３５：ガイド片
３７：突片
３９：上面板部
４１：下面板部
４３：上側垂下部
４５：中間板部
４７：下側垂下部
４９：上側差込部
５１：下側差込部
５３：弾性係止片
５５：フック部
５７：溝
５９：凹み
６１：補強リブ
６３：位置決め片
６５：壁部 11: Trough body 13: Trough lid 15: Fixing bracket 17: Connecting bracket 19: Bottom plate portion 21: Side wall portion 23: Lower overlap portion 25: Upper overlap portion 27: Vertical plate portion 29: Upper horizontal plate portion 31: Lower side Horizontal plate portion 33: Elastic pressing piece 35: Guide piece 37: Projection piece 39: Upper surface plate portion 41: Lower surface plate portion 43: Upper hanging portion 45: Intermediate plate portion 47: Lower hanging portion 49: Upper insertion portion 51: Lower insertion portion 53: elastic locking piece 55: hook portion 57: groove 59: recess 61: reinforcing rib 63: positioning piece 65: wall portion

Claims

断面凹形のトラフ本体（11）と、このトラフ本体の上に被せるトラフ蓋（13）と、このトラフ蓋の両側をトラフ本体の両側壁部に取り付ける２つ１組の固定金具（15）と、長手方向に隣り合うトラフ蓋を連結する連結金具（17）とを備え、
前記トラフ蓋（13）は、一端側の厚さ方向の下半部に長手方向へ張り出す下側重なり部（23）を有し、他端側に隣のトラフ蓋の下側重なり部に被さる上側重なり部（25）を有し、前記下側重なり部（23）の幅は前記トラフ本体（11）の両側壁部（21）の内面間隔より大きく設定されているものからなり、
前記２つ１組の固定金具（15）はそれぞれ、トラフ蓋（13）からトラフ本体（11）にかけての側面に当接する縦板部（27）と、この縦板部の上端からトラフ蓋（13）の上面に添うように伸び出す上側横板部（29）と、前記縦板部（27）の上下方向の中間からトラフ蓋（13）の下面に添うように伸び出す下側横板部（31）と、この下側横板部の先端からトラフ本体の側壁部（21）の内面に向けて斜め下方に伸び出す弾性押付片（33）とを一体に有するものからなり、
前記連結金具（17）は、トラフ蓋（13）の上面に当接する上面板部（39）と、トラフ蓋の下面に当接する下面板部（41）と、前記上面板部（39）の長手方向中間部からほぼ前記上側重なり部（25）の厚さ分だけ垂下する上側垂下部（43）と、この上側垂下部の下端から前記下側重なり部（23）の張出方向へほぼ前記下側重なり部の張出長さ分だけ伸び出す中間板部（45）と、この中間板部の先端から前記下面板部（41）の長手方向中間部に垂下する下側垂下部（47）とを一体に有し、前記上面板部（39）と上側垂下部（43）と中間板部（45）とで前記トラフ蓋の上側重なり部（25）が差し込まれる上側差込部（49）が形成され、前記中間板部（45）と下側垂下部（47）と下面板部（41）とで前記トラフ蓋の下側重なり（23）部が差し込まれる下側差込部（51）が形成されているものからなり、
前記２つ１組の固定金具（15）の、上側横板部（29）と下側横板部（31）とでトラフ蓋（13）の両側縁部を挟み付けると共に、縦板部（27）と弾性押付片（33）とでトラフ本体（11）の両側壁部（21）の上部を挟み付けることにより、トラフ蓋（31）をトラフ本体（11）に固定し、前記トラフ蓋（13）の下側重なり部（23）を連結金具（17）の下側差込部（51）に差し込むと共に、その隣のトラフ蓋（13）の上側重なり部（25）を連結金具（17）の上側差込部（49）に差し込むことにより、隣り合うトラフ蓋（13）を連結したことを特徴とするトラフ蓋の固定構造。 A trough body (11) having a concave cross section, a trough lid (13) covering the trough body, and a pair of fixing brackets (15) for attaching both sides of the trough lid to both side walls of the trough body, A connecting bracket (17) for connecting the trough lids adjacent in the longitudinal direction,
The trough lid (13) has a lower overlapping portion (23) projecting in the longitudinal direction in the lower half of the thickness direction on one end side, and covers the lower overlapping portion of the adjacent trough lid on the other end side. It has an upper overlapping part (25), and the width of the lower overlapping part (23) is set larger than the inner surface spacing of both side wall parts (21) of the trough body (11),
The two sets of fixing brackets (15) are each provided with a vertical plate portion (27) contacting the side surface from the trough lid (13) to the trough body (11), and a trough lid (13 ) And an upper horizontal plate portion (29) extending so as to follow the upper surface of the vertical plate portion (27) and a lower horizontal plate portion extending from the middle of the vertical plate portion (27) so as to follow the lower surface of the trough lid (13) ( 31) and an elastic pressing piece (33) extending obliquely downward from the tip of the lower horizontal plate portion toward the inner surface of the side wall portion (21) of the trough body,
The connecting bracket (17) includes an upper surface plate portion (39) that contacts the upper surface of the trough lid (13), a lower surface plate portion (41) that contacts the lower surface of the trough lid, and the longitudinal length of the upper surface plate portion (39). An upper hanging part (43) that hangs down from the middle part in the direction by the thickness of the upper overlapping part (25), and a lower part of the upper overlapping part (23) from the lower end of the upper hanging part in the protruding direction of the lower overlapping part (23). An intermediate plate portion (45) extending by the protruding length of the side overlap portion, and a lower drooping portion (47) hanging from the tip of the intermediate plate portion to the intermediate portion in the longitudinal direction of the lower surface plate portion (41) An upper insertion portion (49) into which the upper overlapping portion (25) of the trough lid is inserted between the upper surface plate portion (39), the upper hanging portion (43), and the intermediate plate portion (45). A lower insertion portion (51) formed and into which the lower overlapping (23) portion of the trough lid is inserted between the intermediate plate portion (45), the lower hanging portion (47), and the lower surface plate portion (41). There consists of those that are formed,
The upper side plate (29) and the lower side plate (31) of the pair of fixing brackets (15) sandwich both side edges of the trough lid (13) and the vertical plate (27 ) And the elastic pressing piece (33) between the upper portions of the side wall portions (21) of the trough main body (11) to fix the trough lid (31) to the trough main body (11). ) The lower overlapping part (23) is inserted into the lower fitting part (51) of the connecting bracket (17), and the upper overlapping part (25) of the adjacent trough lid (13) is inserted into the connecting bracket (17). A structure for fixing a trough lid, wherein adjacent trough lids (13) are connected by being inserted into an upper insertion portion (49).

前記連結金具（17）の、下面板部（41）の下側差込部（51）側の端部には、先端にトラフ蓋下面の凹み（59）の壁部（65）に引っ掛かるフック部（55）を有する弾性係止片（53）が形成されており、下側差込部（51）にトラフ蓋の下側重なり部（23）を差し込み、前記フック部（55）をトラフ蓋下面の凹み（59）の壁部（65）に引っ掛けることにより、連結金具（17）をトラフ蓋（13）に固定できるようになっていることを特徴とする請求項１記載のトラフ蓋の固定構造。 At the end of the connecting metal fitting (17) on the lower insertion part (51) side of the lower surface plate part (41), the hook part is hooked to the wall part (65) of the recess (59) on the lower surface of the trough lid. An elastic locking piece (53) having (55) is formed, a lower overlapping portion (23) of the trough lid is inserted into the lower insertion portion (51), and the hook portion (55) is placed on the lower surface of the trough lid. The trough lid fixing structure according to claim 1, characterized in that the coupling fitting (17) can be fixed to the trough lid (13) by being hooked on the wall portion (65) of the recess (59). .

前記固定金具（15）の上側横板部（29）には下向きに突片（37）が形成され、前記トラフ蓋（13）の上面の固定金具取付位置には前記突片（37）が入る溝（57）が形成されており、前記突片（37）を前記溝（57）に嵌め込むことにより、前記固定金具（15）のトラフ蓋長手方向への移動が阻止されるようになっていることを特徴とする請求項１記載のトラフ蓋の固定構造。 A protruding piece (37) is formed downward on the upper lateral plate portion (29) of the fixing bracket (15), and the protruding piece (37) enters the fixing bracket mounting position on the upper surface of the trough lid (13). A groove (57) is formed. By fitting the projecting piece (37) into the groove (57), movement of the fixing bracket (15) in the longitudinal direction of the trough lid is prevented. The trough lid fixing structure according to claim 1, wherein:

前記２つ１組の固定金具（15）は、トラフ蓋（13）の上側重なり部（25）付近に取り付けられていることを特徴とする請求項１記載のトラフ蓋の固定構造。 The trough lid fixing structure according to claim 1, wherein the pair of fixing brackets (15) are attached in the vicinity of an upper overlapping portion (25) of the trough lid (13).

断面凹形のトラフ本体（11）と、このトラフ本体の上に被せるトラフ蓋（13）と、このトラフ蓋の両側をトラフ本体の両側壁部に取り付ける２つ１組の固定金具（15）と、長手方向に隣り合うトラフ蓋を連結する連結金具（17）とを用い、
前記トラフ蓋（13）は、一端側の厚さ方向の下半部に長手方向へ張り出す下側重なり部（23）を有し、他端側に隣のトラフ蓋の下側重なり部に被さる上側重なり部（25）を有し、前記下側重なり部（23）の幅は前記トラフ本体（11）の両側壁部（21）の内面間隔より大きく設定されているものからなり、
前記２つ１組の固定金具（15）はそれぞれ、トラフ蓋（13）からトラフ本体（11）にかけての側面に当接する縦板部（27）と、この縦板部の上端からトラフ蓋（13）の上面に添うように伸び出す上側横板部（29）と、前記縦板部（27）の上下方向の中間からトラフ蓋（13）の下面に添うように伸び出す下側横板部（31）と、この下側横板部の先端からトラフ本体の側壁部（21）の内面に向けて斜め下方に伸び出す弾性押付片（33）とを一体に有するものからなり、
前記連結金具（17）は、トラフ蓋（13）の上面に当接する上面板部（39）と、トラフ蓋の下面に当接する下面板部（41）と、前記上面板部（39）の長手方向中間部からほぼ前記上側重なり部（25）の厚さ分だけ垂下する上側垂下部（43）と、この上側垂下部の下端から前記下側重なり部（23）の張出方向へほぼ前記下側重なり部の張出長さ分だけ伸び出す中間板部（45）と、この中間板部の先端から前記下面板部（41）の長手方向中間部に垂下する下側垂下部（47）とを一体に有し、前記上面板部（39）と上側垂下部（43）と中間板部（45）とで前記トラフ蓋の上側重なり部（25）が差し込まれる上側差込部（49）が形成され、前記中間板部（45）と下側垂下部（47）と下面板部（41）とで前記トラフ蓋の下側重なり（23）部が差し込まれる下側差込部（51）が形成されているものからなり、
前記２つ１組の固定金具（15）の、上側横板部（29）と下側横板部（31）とでトラフ蓋（13）の両側縁部を挟み付けることにより固定金具（15）をトラフ蓋（13）に取り付け、前記連結金具（17）の下側差込部（51）にトラフ蓋（13）の下側重なり部（23）を差し込むことにより連結金具（17）をトラフ蓋（13）に取り付けた後、前記連結金具（17）の上側差込部（49）に、先にトラフ本体（11）に固定されているトラフ蓋（13）の上側重なり部（25）を差し込み、かつ前記固定金具（15）の縦板部（27）と弾性押付片（33）とでトラフ本体（11）の両側壁部（21）の上部を挟み付けることにより、トラフ蓋（13）をトラフ本体（11）に固定することを特徴とするトラフ蓋の固定方法。 A trough body (11) having a concave cross section, a trough lid (13) covering the trough body, and a pair of fixing brackets (15) for attaching both sides of the trough lid to both side walls of the trough body, , Using the connecting bracket (17) that connects the trough lids adjacent in the longitudinal direction,
The trough lid (13) has a lower overlapping portion (23) projecting in the longitudinal direction in the lower half of the thickness direction on one end side, and covers the lower overlapping portion of the adjacent trough lid on the other end side. It has an upper overlapping part (25), and the width of the lower overlapping part (23) is set larger than the inner surface spacing of both side wall parts (21) of the trough body (11),
The two sets of fixing brackets (15) are each provided with a vertical plate portion (27) contacting the side surface from the trough lid (13) to the trough body (11), and a trough lid (13 ) And an upper horizontal plate portion (29) extending so as to follow the upper surface of the vertical plate portion (27) and a lower horizontal plate portion extending from the middle of the vertical plate portion (27) so as to follow the lower surface of the trough lid (13) ( 31) and an elastic pressing piece (33) extending obliquely downward from the tip of the lower horizontal plate portion toward the inner surface of the side wall portion (21) of the trough body,
The connecting bracket (17) includes an upper surface plate portion (39) that contacts the upper surface of the trough lid (13), a lower surface plate portion (41) that contacts the lower surface of the trough lid, and the longitudinal length of the upper surface plate portion (39). An upper hanging part (43) that hangs down from the middle part in the direction by the thickness of the upper overlapping part (25), and a lower part of the upper overlapping part (23) from the lower end of the upper hanging part in the protruding direction of the lower overlapping part (23). An intermediate plate portion (45) extending by the protruding length of the side overlap portion, and a lower drooping portion (47) hanging from the tip of the intermediate plate portion to the intermediate portion in the longitudinal direction of the lower surface plate portion (41) An upper insertion portion (49) into which the upper overlapping portion (25) of the trough lid is inserted between the upper surface plate portion (39), the upper hanging portion (43), and the intermediate plate portion (45). A lower insertion portion (51) formed and into which the lower overlapping (23) portion of the trough lid is inserted between the intermediate plate portion (45), the lower hanging portion (47), and the lower surface plate portion (41). There consists of those that are formed,
Fixing bracket (15) by sandwiching the side edges of the trough lid (13) between the upper horizontal plate (29) and lower horizontal plate (31) of the set of two fixed brackets (15) Is attached to the trough lid (13), and the connecting bracket (17) is attached to the trough lid by inserting the lower overlapping portion (23) of the trough lid (13) into the lower insertion portion (51) of the connecting bracket (17). After attaching to (13), insert the upper overlapping part (25) of the trough lid (13) previously fixed to the trough body (11) into the upper insertion part (49) of the connecting bracket (17). In addition, the trough lid (13) is attached by sandwiching the upper portions of the side wall portions (21) of the trough body (11) between the vertical plate portion (27) and the elastic pressing piece (33) of the fixing bracket (15). A trough lid fixing method characterized by fixing to the trough body (11).