JP4845019B2 - trough - Google Patents

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JP4845019B2
JP4845019B2 JP2006184443A JP2006184443A JP4845019B2 JP 4845019 B2 JP4845019 B2 JP 4845019B2 JP 2006184443 A JP2006184443 A JP 2006184443A JP 2006184443 A JP2006184443 A JP 2006184443A JP 4845019 B2 JP4845019 B2 JP 4845019B2
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lid
slot
trough
trough body
fixing bracket
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JP2008017573A (en
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裕志 塩田
雄一 白山
裕 古川
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THE FURUKAW ELECTRIC CO., LTD.
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Description

本発明は、ケーブル等の布設に使用されるトラフに関し、特に蓋の固定手段を有するトラフに関するものである。   The present invention relates to a trough used for laying a cable or the like, and more particularly to a trough having a lid fixing means.

トラフは、断面ほぼＵ字形のトラフ本体と、このトラフ本体に被せる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、布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再生し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。   The trough is composed of a trough body having a substantially U-shaped cross section and a lid that covers the trough body. Conventional troughs are made of concrete, but because the troughs made of concrete are heavy, the burden on workers during installation work is great. For this reason, recently, troughs made of plastic (especially made of recycled plastic obtained by recycling 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、鉄道線路脇などに布設した場合、列車通過時の風圧で、蓋がずれたり、外れたりするおそれがある。また、蓋をあけるのも容易であるため、蓋を開けて、中に布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。   The plastic trough is light and reduces the burden on the construction worker. However, if it is laid on the side of the railway track, the lid may slip or come off due to the wind pressure when passing through the train. Moreover, since it is easy to open the lid, there is a risk that the lid is opened and a cable or the like installed therein is tampered with.

この問題を解決するものとして、トラフ本体の両側にバックル式の固定金具を取り付けて、この固定金具で蓋の両側を押え付ける方式のトラフ蓋固定構造が提案されている（特許文献１参照）。   In order to solve this problem, a trough lid fixing structure has been proposed in which buckle-type fixing brackets are attached to both sides of the trough body, and both sides of the lid are pressed by the fixing brackets (see Patent Document 1).

特開２００５−９４９５８号公報JP 2005-94958 A

しかし、特許文献１に開示されているトラフ蓋固定構造には次のような問題がある。すなわち、バックル式の固定金具は、蓋を固定したり、蓋の固定を解除したりするときに、固定金具をトラフの両側に開く必要があるため、設置場所の関係でトラフの両側にスペースを確保できない所では使用できない。また、トラフが蓋の上面レベルまで土中に埋めて設置された場合には、蓋をあける必要が生じたときに、固定金具の両側の土砂を除去しないと固定金具を両側へ開くことができないため、蓋をあける作業が大変である。   However, the trough lid fixing structure disclosed in Patent Document 1 has the following problems. In other words, the buckle type fixing bracket needs to open the fixing bracket on both sides of the trough when fixing the lid or releasing the lid. It cannot be used where it cannot be secured. In addition, when the trough is installed in the soil up to the top level of the lid, when it is necessary to open the lid, the fixing bracket cannot be opened to both sides without removing the earth and sand on both sides of the fixing bracket. Therefore, the work of opening the lid is difficult.

本発明の目的は、トラフの両側にスペースを確保できない所でも蓋の固定及び固定解除が可能であり、トラフが蓋の上面レベルまで土中に埋めて設置されている場合でも蓋を容易にあけることができるトラフを提供することにある。   The object of the present invention is that the lid can be fixed and released even in a place where there is no space on both sides of the trough, and the lid can be easily opened even when the trough is buried in the soil up to the upper surface level of the lid. It is to provide troughs that can.

上記目的を達成するため本発明は、
トラフ本体と、トラフ本体に被せる蓋と、トラフ本体に被せた蓋をトラフ本体に固定する固定金具とを備えたトラフにおいて、
前記トラフ本体は、両側壁の外面に側方へ突出する突出部を形成し、その突出部に上下方向にスロットを形成したものからなり、
前記蓋は、トラフ本体に被せたときに前記トラフ本体側のスロットと対応する位置に上下方向にスロットを形成したものからなり、
前記固定金具は、バネ弾性を有する帯状金属片を略Π字形に屈曲し、その両脚部の下端部を折り返して前記トラフ本体及び蓋のスロットを通り抜けられるサイズの係止爪を形成したものからなり、
前記トラフ本体に蓋を被せて固定するときは、トラフ本体に蓋を被せた後、蓋側のスロットとトラフ本体側のスロットに前記固定金具の両脚部を挿入し、両脚部下端の係止爪を両脚部のバネ弾性によりトラフ本体側のスロットの下側の縁に引っ掛けることで蓋を固定するようになっており、
蓋をあけるときは、固定金具の両脚部下端の係止爪をトラフ本体側のスロットの下側の縁から外したのち固定金具を上方へ引き上げると、途中で前記係止爪が両脚部のバネ弾性により蓋側のスロットの下側の縁に引っ掛かり、固定金具を取っ手として利用して蓋を持ち上げられるようになっている、
ことを特徴とするものである。 In order to achieve the above object, the present invention
In the trough comprising a trough body, a lid that covers the trough body, and a fixing bracket that fixes the lid that covers the trough body to the trough body,
The trough body is formed by forming a protruding portion protruding laterally on the outer surface of both side walls, and forming a slot in the vertical direction on the protruding portion,
The lid is formed by forming a slot in the vertical direction at a position corresponding to the slot on the trough body side when the lid is put on the trough body,
The fixing bracket is formed by bending a strip-shaped metal piece having spring elasticity into a substantially square shape and folding back the lower end portions of both leg portions to form a locking claw of a size that can pass through the slot of the trough body and the lid. ,
When fixing the trough body with a lid, after covering the trough body with the lid , insert both legs of the fixing bracket into the slot on the lid side and the slot on the trough body side, Is fixed to the bottom edge of the slot on the trough body side by the spring elasticity of both legs .
When opening the lid, remove the locking claws at the lower ends of both legs of the fixing bracket from the lower edge of the slot on the trough body side, and then lift the fixing bracket upward. It is hooked to the lower edge of the slot on the lid side by elasticity, and the lid can be lifted using the fixing bracket as a handle.
It is characterized by this.

本発明に係るトラフは、固定金具の両脚部の上部に、係止爪をスロットの縁から外す方向に両脚部を弾性変形させるための工具を挿入する工具差込部を形成したものであることが好ましい。   The trough according to the present invention is such that a tool insertion part for inserting a tool for elastically deforming both leg parts in a direction to remove the locking claw from the edge of the slot is formed on the upper part of both leg parts of the fixing bracket. Is preferred.

また本発明に係るトラフは、トラフ本体の突出部及びスロットを、固定金具の両脚部がトラフ本体の側面に露出しないように形成したものであることが好ましい。   In the trough according to the present invention, it is preferable that the protruding portion and the slot of the trough body are formed so that both legs of the fixing bracket are not exposed on the side surface of the trough body.

本発明によれば、トラフ本体及び蓋の両側にスロットを形成し、このスロットに略Π字形の固定金具の両脚部を挿入し、両脚部の下端の係止爪をトラフ本体側のスロットの縁に引っ掛けることで、蓋を固定するようにしたので、トラフの両側にスペースを確保できない所でも容易に蓋を固定することができる。   According to the present invention, slots are formed on both sides of the trough main body and the lid, both leg portions of the substantially bracket-shaped fixing bracket are inserted into the slots, and the locking claws at the lower ends of the both leg portions are connected to the edge of the slot on the trough main body side. Since the lid is fixed by being hooked on the lid, the lid can be easily fixed even in a place where a space cannot be secured on both sides of the trough.

また、蓋をあける必要が生じたときは、固定金具の両脚部を、係止爪をスロットの縁から外す方向に弾性変形させてから、固定金具を途中まで引き上げ、その後、両脚部の弾性変形を解除して固定金具をさらに引き上げると、係止爪が蓋の下面のスロットの縁に引っ掛かるため、固定金具を、蓋を持ち上げる取っ手として使用することができる。このため蓋をあける作業を楽に行うことができる。
また、蓋をあけた後に、固定金具が蓋から外れ難いので、固定金具を紛失する可能性が少ない。 When it is necessary to open the lid, elastically deform both legs of the fixing bracket in the direction to remove the locking claw from the edge of the slot, then pull the fixing bracket halfway, and then elastically deform both legs. When the fixing bracket is further lifted by releasing the hook, the locking claw is caught on the edge of the slot on the lower surface of the lid, so that the fixing bracket can be used as a handle for lifting the lid. For this reason, the operation | work which opens a cover can be performed easily.
In addition, since the fixing bracket is not easily detached from the lid after the lid is opened, there is little possibility of losing the fixing bracket.

また、固定金具の両脚部の上部に、両脚部を弾性変形させるための工具を挿入する工具差込部を形成しておけば、蓋をあけるときに、その工具差込部に例えばマイナスドライバー等を差し込んで、両脚部を広げるか、狭める方向に弾性変形させることにより、係止爪をスロットの縁から簡単に外すことができる。したがって蓋の固定の解除を容易に行うことができる。   In addition, if a tool insertion part for inserting a tool for elastically deforming both leg parts is formed on the upper part of both leg parts of the fixing bracket, when the lid is opened, for example, a screwdriver or the like is inserted into the tool insertion part. , And the latching claw can be easily detached from the edge of the slot by expanding both legs or elastically deforming them in the direction of narrowing. Accordingly, it is possible to easily release the lid.

また、トラフ本体の突出部及びスロットを、固定金具の両脚部が側面に露出しないように形成しておくと、固定金具の両脚部に土圧がかからないため、蓋をあける際に、係止爪をスロットの縁から外す操作を確実に行うことができる。   In addition, if the protruding part and slot of the trough body are formed so that both legs of the fixing bracket are not exposed to the side, earth pressure is not applied to both legs of the fixing bracket. It is possible to reliably perform the operation of removing from the edge of the slot.

〔実施形態１〕 図１及び図２は本発明の一実施形態を示す。このトラフは、プラスチック製のトラフ本体１１と、プラスチック製の蓋１３と、固定金具１５とから構成される。 Embodiment 1 FIGS. 1 and 2 show an embodiment of the present invention. The trough includes a plastic trough body 11, a plastic lid 13, and a fixing bracket 15.

トラフ本体１１は、底壁１７と左右の側壁１９を有し、上面が開口する断面略Ｕ字形である。両側壁１９の外面には、図３に示すように、補強リブ２１が形成されている。またトラフ本体１１の長手方向の一方の端部には雄型連結部２３が、他方の端部には雌型連結部２５が形成されている。トラフ本体１１は定尺物であるため、これを線路脇などに布設するときは、長手方向に隣り合うトラフ本体１１を、雄型連結部２３と雌型連結部２５を嵌合させて連結しながら布設して行く。このトラフ本体１１の両端付近には、両側壁１９の外面上部に側方へ突出する突出部２７が形成され、その突出部２７には上下方向にスロット２９が形成されている。   The trough body 11 has a bottom wall 17 and left and right side walls 19, and has a substantially U-shaped cross section with an upper surface opened. Reinforcing ribs 21 are formed on the outer surfaces of the side walls 19 as shown in FIG. The trough body 11 has a male connecting portion 23 at one end in the longitudinal direction and a female connecting portion 25 at the other end. Since the trough body 11 is a fixed object, when laying it on the side of the track, etc., the trough bodies 11 adjacent in the longitudinal direction are connected by fitting the male connecting portion 23 and the female connecting portion 25 together. While laying down. In the vicinity of both ends of the trough body 11, a protruding portion 27 that protrudes laterally is formed on the upper outer surface of the side walls 19, and a slot 29 is formed in the protruding portion 27 in the vertical direction.

蓋１３は、トラフ本体１１の両側壁１９の外面間隔よりも幅が広く形成されており、トラフ本体１１に被せたときに前記トラフ本体側のスロット２９と対応する位置に（上下に並ぶ位置に）、上下方向に貫通するスロット３１が形成されている（図４参照）。また、蓋１３の下面には、図１Ｃ及び図４Ｂに示すように、トラフ本体１１に被せたときにトラフ本体の両側壁１９の内側に入って蓋の位置決めをするガイド片３３が形成されている。また蓋１３の長手方向の一方の端部には下側重なり部３５が、他方の端部には上側重なり部３７が形成されている。布設されたトラフ本体１１に蓋１３を被せるときは、長手方向に隣り合う蓋１３の下側重なり部３５と上側重なり部３７が重なるように被せて行く。   The lid 13 is formed wider than the outer surface spacing of the side walls 19 of the trough body 11, and when the lid 13 is placed on the trough body 11, the lid 13 is located at a position corresponding to the slot 29 on the trough body side. ), A slot 31 penetrating in the vertical direction is formed (see FIG. 4). Further, as shown in FIGS. 1C and 4B, a guide piece 33 is formed on the lower surface of the lid 13 to enter the inside of the side walls 19 of the trough body and position the lid when the trough body 11 is covered. Yes. Further, a lower overlapping portion 35 is formed at one end of the lid 13 in the longitudinal direction, and an upper overlapping portion 37 is formed at the other end. When covering the laid trough body 11 with the lid 13, the lower overlapping portion 35 and the upper overlapping portion 37 that are adjacent in the longitudinal direction are covered with each other.

固定金具１５は、図５に示すように、バネ弾性を有する帯状金属片（ステンレス板が好ましい）を略Π字形に屈曲し、その両脚部３９の下端部を内側に折り返して係止爪４１を形成したものである。両脚部３９の上端の間隔は、蓋の両側のスロット３１の間隔に対応しており、下端の間隔は上端の間隔よりも狭くなっている。また、両脚部３９の上部の外面側（係止爪４１と反対側）には、両脚部３９を外側へ弾性変形させるための工具（マイナスドライバー等）を挿入する工具差込部４３がポケット状に形成されている。なお、４５は固定金具１５の横バー部である。   As shown in FIG. 5, the fixing metal 15 is formed by bending a belt-like metal piece (preferably a stainless steel plate) having spring elasticity into a substantially square shape, and folding the lower end portions of both leg portions 39 inward so Formed. The interval between the upper ends of both leg portions 39 corresponds to the interval between the slots 31 on both sides of the lid, and the interval between the lower ends is narrower than the interval between the upper ends. Further, a tool insertion portion 43 for inserting a tool (such as a flat-blade screwdriver) for elastically deforming both the leg portions 39 outward is formed in a pocket shape on the outer surface side (the side opposite to the locking claws 41) of both leg portions 39. Is formed. Reference numeral 45 denotes a horizontal bar portion of the fixing bracket 15.

トラフ本体１１、蓋１３及び固定金具１５は、上記のように構成されているため、トラフ本体１１に蓋１３を被せ、蓋側のスロット３１とトラフ本体側のスロット２９に固定金具１５の両脚部３９を挿入すると、固定金具１５の横バー部４５の下面が蓋１３の上面に当接したところで、両脚部３９の下端の係止爪４１がトラフ本体側のスロット２９の下側の縁（突出部２７の下面）に引っ掛かる。このため固定金具１５が引き抜けなくなり、蓋１３が固定された状態となる。   Since the trough body 11, the lid 13 and the fixing bracket 15 are configured as described above, the trough body 11 is covered with the lid 13, and both leg portions of the fixing bracket 15 are placed in the slot 31 on the lid side and the slot 29 on the trough body side. When 39 is inserted, when the lower surface of the horizontal bar portion 45 of the fixing bracket 15 comes into contact with the upper surface of the lid 13, the locking claws 41 at the lower ends of the both leg portions 39 are located on the lower edge (protrusion) of the slot 29 on the trough body side. It catches on the lower surface of the part 27. For this reason, the fixing bracket 15 cannot be pulled out, and the lid 13 is fixed.

蓋１３を図１のように固定した後に、蓋１３をあける必要が生じたときは、固定金具１５の工具差込部４３に例えばマイナスドライバー等の工具を差し込んで、両脚部３９を外側へ弾性変形させる。すると、係止爪４１がスロット２９の縁から外れるので、固定金具１５を上方へ引き抜くことができる。固定金具１５を途中まで引き抜くと、今度は図６に示すように、係止爪４１が蓋１３の下面のスロット３１の縁に引っ掛かるため、固定金具１５の横バー部４５を掴んで蓋１３を持ち上げることができる。したがって作業者は、楽な姿勢で、簡単に蓋１３をあけることができる。   When it is necessary to open the lid 13 after fixing the lid 13 as shown in FIG. 1, a tool such as a flat-blade screwdriver is inserted into the tool insertion portion 43 of the fixing bracket 15, and both legs 39 are elastically moved outward. Deform. Then, since the latching claw 41 comes off from the edge of the slot 29, the fixing bracket 15 can be pulled out upward. When the fixing bracket 15 is pulled out halfway, as shown in FIG. 6, the locking claw 41 is hooked on the edge of the slot 31 on the lower surface of the lid 13, so that the lateral bar portion 45 of the fixing bracket 15 is grasped and the lid 13 is removed. Can be lifted. Therefore, the operator can easily open the lid 13 with an easy posture.

〔実施形態２〕 図７は本発明の他の実施形態を示す。このトラフが実施形態１のトラフと異なる点は、固定金具１５の係止爪４１が両脚部３９の下端部を外側へ折り返すことにより形成されていること、両脚部３９の下端の間隔が上端の間隔よりも広くなっていること、そして工具差込部４３が両脚部３９の上部の内面側に形成されていることである。このようにすると、固定金具の係止爪４１が、トラフ本体のスロット２９の外側の縁に引っ掛かるので、これによって蓋１３を固定することができる。上記以外の構成は図１の実施形態と同じであるので、同一部分には同一符号を付して説明を省略する。 Embodiment 2 FIG. 7 shows another embodiment of the present invention. This trough is different from the trough of the first embodiment in that the locking claw 41 of the fixing bracket 15 is formed by folding the lower end portions of both leg portions 39 outward, and the distance between the lower ends of both leg portions 39 is the upper end. That is, it is wider than the interval, and the tool insertion portion 43 is formed on the inner surface side of the upper portions of the both leg portions 39. If it does in this way, since the latching claw 41 of a fixing bracket will be hooked on the outer edge of the slot 29 of a trough main body, the lid | cover 13 can be fixed by this. Since the configuration other than the above is the same as that of the embodiment of FIG.

〔実施形態３〕 図８は本発明のさらに他の実施形態を示す。このトラフが実施形態１のトラフと異なる点は、突出部２７を側壁１９の上端から中間部まで形成し、その中に上下方向にスロット２９を形成して、固定金具１５の脚部３９が側面に露出しないようにしたことである。このようにすると、トラフが蓋１３の上面のみを露出させて土中に布設された場合でも、固定金具１５の両脚部３９に土圧がかからないため、蓋１３をあけるときに、確実に両脚部３９を外側へ弾性変形させて、係止爪４１をスロット２９の縁から外すことができる。したがって蓋１３を確実にあけることができる。上記以外の構成は図１の実施形態と同じであるので、同一部分には同一符号を付して説明を省略する。 Embodiment 3 FIG. 8 shows still another embodiment of the present invention. This trough is different from the trough of the first embodiment in that the protruding portion 27 is formed from the upper end of the side wall 19 to the middle portion, the slot 29 is formed in the vertical direction therein, and the leg portion 39 of the fixing bracket 15 is formed on the side surface. It is to prevent it from being exposed. In this way, even when the trough is laid in the soil with only the upper surface of the lid 13 exposed, no earth pressure is applied to the both leg portions 39 of the fixing bracket 15, so that both leg portions are surely opened when the lid 13 is opened. 39 can be elastically deformed outward, and the locking claw 41 can be removed from the edge of the slot 29. Therefore, the lid 13 can be reliably opened. Since the configuration other than the above is the same as that of the embodiment of FIG.

本発明に係るトラフの一実施形態を示す、（Ａ）は平面図、（Ｂ）は側面図、（Ｃ）は（Ｂ）のＣ−Ｃ線断面図。1A is a plan view, FIG. 1B is a side view, and FIG. 1C is a cross-sectional view taken along line CC of FIG. 1B, showing an embodiment of a trough according to the present invention. 図１のトラフの分解断面図。FIG. 2 is an exploded cross-sectional view of the trough of FIG. 1. 図１のトラフの、トラフ本体を示す、（Ａ）は平面図、（Ｂ）は側面図。The trough main body of the trough of FIG. 1 is shown, (A) is a top view, (B) is a side view. 図１のトラフの、蓋を示す、（Ａ）は平面図、（Ｂ）は側面図。The top of the trough of FIG. 1 is shown, (A) is a top view, (B) is a side view. 図１のトラフの、固定金具を示す、（Ａ）は平面図、（Ｂ）は正面図、（Ｃ）は底面図、（Ｄ）は左側面図、（Ｅ）は右側面図。FIG. 1A is a plan view, FIG. 1B is a front view, FIG. 1C is a bottom view, FIG. 1D is a left side view, and FIG. 図１のトラフの、蓋をあけるときの状態を示す断面図。Sectional drawing which shows the state when opening a lid | cover of the trough of FIG. 本発明に係るトラフの他の実施形態を示す断面図。Sectional drawing which shows other embodiment of the trough concerning this invention. 本発明に係るトラフのさらに他の実施形態を示す断面図。Sectional drawing which shows other embodiment of the trough concerning this invention.

符号の説明Explanation of symbols

１１：トラフ本体
１３：蓋
１５：固定金具
１７：底壁
１９：側壁
２７：突出部
２９：スロット
３１：スロット
３９：脚部
４１：係止爪
４３：工具差込部 11: Trough body 13: Lid 15: Fixing bracket 17: Bottom wall 19: Side wall 27: Projection part 29: Slot 31: Slot 39: Leg part 41: Locking claw 43: Tool insertion part

Claims (3)

トラフ本体と、トラフ本体に被せる蓋と、トラフ本体に被せた蓋をトラフ本体に固定する固定金具とを備えたトラフにおいて、
前記トラフ本体は、両側壁の外面に側方へ突出する突出部を形成し、その突出部に上下方向にスロットを形成したものからなり、
前記蓋は、トラフ本体に被せたときに前記トラフ本体側のスロットと対応する位置に上下方向にスロットを形成したものからなり、
前記固定金具は、バネ弾性を有する帯状金属片を略Π字形に屈曲し、その両脚部の下端部を折り返して前記トラフ本体及び蓋のスロットを通り抜けられるサイズの係止爪を形成したものからなり、
前記トラフ本体に蓋を被せて固定するときは、トラフ本体に蓋を被せた後、蓋側のスロットとトラフ本体側のスロットに前記固定金具の両脚部を挿入し、両脚部下端の係止爪を両脚部のバネ弾性によりトラフ本体側のスロットの下側の縁に引っ掛けることで蓋を固定するようになっており、
蓋をあけるときは、固定金具の両脚部下端の係止爪をトラフ本体側のスロットの下側の縁から外したのち固定金具を上方へ引き上げると、途中で前記係止爪が両脚部のバネ弾性により蓋側のスロットの下側の縁に引っ掛かり、固定金具を取っ手として利用して蓋を持ち上げられるようになっている、
ことを特徴とするトラフ。 In the trough comprising a trough body, a lid that covers the trough body, and a fixing bracket that fixes the lid that covers the trough body to the trough body,
The trough body is formed by forming a protruding portion protruding laterally on the outer surface of both side walls, and forming a slot in the vertical direction on the protruding portion,
The lid is formed by forming a slot in the vertical direction at a position corresponding to the slot on the trough body side when the lid is put on the trough body,
The fixing bracket is formed by bending a strip-shaped metal piece having spring elasticity into a substantially square shape and folding back the lower end portions of both leg portions to form a locking claw of a size that can pass through the slot of the trough body and the lid. ,
When fixing the trough body with a lid, after covering the trough body with the lid , insert both legs of the fixing bracket into the slot on the lid side and the slot on the trough body side, Is fixed to the bottom edge of the slot on the trough body side by the spring elasticity of both legs .
When opening the lid, remove the locking claws at the lower ends of both legs of the fixing bracket from the lower edge of the slot on the trough body side, and then lift the fixing bracket upward. It is hooked to the lower edge of the slot on the lid side by elasticity, and the lid can be lifted using the fixing bracket as a handle.
A trough characterized by that. 固定金具の両脚部の上部に、係止爪をスロットの縁から外す方向に両脚部を弾性変形させるための工具を挿入する工具差込部を形成したことを特徴とする請求項１記載のトラフ。   2. A trough according to claim 1, wherein a tool insertion portion for inserting a tool for elastically deforming both the leg portions in a direction to remove the locking claws from the edge of the slot is formed on the upper portion of both the leg portions of the fixing bracket. . トラフ本体の突出部及びスロットを、固定金具の両脚部がトラフ本体の側面に露出しないように形成したことを特徴とする請求項１又は２記載のトラフ。   The trough according to claim 1 or 2, wherein the projecting portion and the slot of the trough body are formed so that both legs of the fixing bracket are not exposed to the side surface of the trough body.
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