JP3098050U

JP3098050U - Gutter

Info

Publication number: JP3098050U
Application number: JP2003002979U
Authority: JP
Inventors: 平田　純一
Original assignee: 平田　純一
Priority date: 2003-05-26
Filing date: 2003-05-26
Publication date: 2004-02-19
Anticipated expiration: 2009-05-26

Abstract

【課題】側溝蓋にガタツキが生じ難く、また、ガタツキが生じたとしても側溝蓋が側溝本体から外れ難い側溝を提供する。
【解決手段】上部に開口部２１を有する側溝本体２０と、側溝本体２０に連設されて開口部２１を閉蓋する複数の側溝蓋３０とを備える。開口部２１は、側溝１０の幅方向を左右方向として側溝蓋３０の左右両側面３１に沿った側壁２３を有すると共に側壁２３の内側に側溝蓋３０を収容する蓋収容部２２を備えてなり、側溝蓋３０は、側溝１０の長さ方向を前後方向として前後両端面３２の夫々が、一側面３１から他側面３１に向かって略一定角度で傾斜し、上面３３ａから下面３３ｂに向かって略一定角度で傾斜する傾斜面となっており、互いに対向する端面３２が略平行状態となるようにして隣接する二つの側溝蓋３０が配設される。
【選択図】　　　　図１An object of the present invention is to provide a side groove in which rattle is hardly generated in a side groove cover, and even if rattle occurs, the side groove cover is hard to come off from a side groove main body.
A gutter main body having an opening at an upper portion and a plurality of gutter lids connected to the gutter main body and closing the opening are provided. The opening 21 has a side wall 23 along the left and right side surfaces 31 of the side groove cover 30 with the width direction of the side groove 10 as the left and right direction, and includes a lid accommodating portion 22 for housing the side groove cover 30 inside the side wall 23. Each of the front and rear end surfaces 32 is inclined at a substantially constant angle from one side surface 31 to the other side surface 31 with the length direction of the side groove 10 as the front and rear direction, and the side groove cover 30 is substantially constant from the upper surface 33a to the lower surface 33b. The two side groove lids 30 are arranged such that the end surfaces 32 that are inclined at an angle are substantially parallel to each other.
[Selection diagram] Fig. 1

Description

【０００１】
【考案の属する技術分野】
本考案は、上部に開口部を有する側溝本体と、該側溝本体に連設されて前記開口部を閉蓋する複数の側溝蓋とを備える側溝に関するものである。
【０００２】
【従来の技術】
車道や歩道等の道路の側縁等に設けられる側溝の中には、上部に開口部を有する側溝本体と、この側溝本体に連設されて側溝本体の開口部を閉蓋する複数の側溝蓋とを備えるものがある。ここで、一般的な側溝では、側溝蓋と接する側溝本体の接面や、側溝本体と接する側溝蓋の接面が平面状に形成されている。また、一般的な側溝では、側溝本体として、コンクリートを型枠に打設して成形したコンクリート製のものが用いられている。一方、側溝蓋としては、側溝本体と同様なコンクリート製のものが用いられているが、その他に、亜鉛めっき鋼板等の金属板を溶接したり、鉄などの金属を鋳造したりして形成した金属製のものも用いられている。
【０００３】
【考案が解決しようとする課題】
しかしながら、上述したような側溝では、側溝本体に側溝蓋を載置した状態において、側溝本体と側溝蓋とを、互いの接面全体に渡って均一に接触させることが困難である。これは、コンクリート製の側溝本体や側溝蓋では、良好な平滑面を形成し難く、また、打設したコンクリートの養生後に歪みを生じ易く、十分な平面精度を確保することができないからである。また、側溝蓋を金属製としても、そもそも、側溝本体側の平面精度が確保できていなければ、側溝本体と側溝蓋とを接面全体に渡って均一に接触させることができないことは無論のこと、溶接や鋳造にて形成した後に歪みを生じ易く、側溝蓋自体の十分な平面精度を確保することができない。
【０００４】
このように、側溝本体と側溝蓋とを、互いの接面全体に渡って均一に接触させることができないと、側溝本体に載置した側溝蓋にガタツキを生じてしまう。そして、側溝蓋にガタツキが生じていると、側溝蓋の上を車両や歩行者が通過する際に騒音を発するといった問題を生じる。また、場合によっては、側溝本体から側溝蓋が外れてしまうこともある。特に、車道に設けられた側溝では、側溝蓋の上を車両が高速で通過すると、側溝蓋に大きな衝撃荷重が加わるため、ガタツキが僅かであっても、側溝蓋が大きく跳ね上がられて側溝本体から外れてしまう虞がある。このように、側溝蓋が外れた状態では、側溝蓋が道路上に突出したり、側溝本体の開口部が露呈したままとなるので、非常に危険である。
【０００５】
本考案は上記実状を鑑みてなされたものであり、側溝蓋にガタツキが生じ難く、また、ガタツキが生じたとしても側溝蓋が側溝本体から外れ難い側溝の提供を課題とする。
【０００６】
【課題を解決するための手段】
以上の課題を解決するために本考案の採った手段は、以下の通りである。
【０００７】
請求項１の考案は、
「上部に開口部を有する側溝本体と、該側溝本体に連設されて前記開口部を閉蓋する複数の側溝蓋とを備える側溝であって、
前記開口部は、側溝の幅方向を左右方向として前記側溝蓋の左右両側面に沿った側壁を有すると共に該側壁の内側に前記側溝蓋を収容する蓋収容部を備えてなり、
前記側溝蓋は、側溝の長さ方向を前後方向として前後両端面の夫々が、一側面から他側面に向かって略一定角度で傾斜し、且つ、上面から下面に向かって略一定角度で傾斜する傾斜面となっており、
互いに対向する端面が略平行状態となるようにして隣接する二つの側溝蓋が配設されてなることを特徴とする側溝」
である。
【０００８】
また、請求項２の考案は、
「個々の側溝蓋の前後両端面は、互いに略平行となるように、一側面から他側面に向かって同方向に傾斜すると共に上面から下面に向かって同方向に傾斜していることを特徴とする請求項１に記載の側溝」
である。
【０００９】
また、請求項３の考案は、
「個々の側溝蓋の前後両端面は、互いに略対称となるように、一側面から他側面に向かって異方向に傾斜すると共に上面から下面に向かって異方向に傾斜していることを特徴とする請求項１に記載の側溝」
である。
【００１０】
さらに、請求項４の考案は、
「前後両端面が互いに略平行となるように傾斜する側溝蓋と、前後両端面が互いに略対称となるように傾斜する側溝蓋とを組合せて、前記側溝本体の長手方向に複数の側溝蓋を連設してなることを特徴とする請求項１に記載の側溝」
である。
【００１１】
ガタツキのある側溝蓋において、前端側または後端側の一端側の上面に荷重が加わると、他端側が側溝本体から浮き上がろうとする。この時、浮き上がろうとする他端側は、荷重が加わった一端側の左右両角部を結ぶ軸線を回動軸線として、一端側に対して回動するのであるが、請求項１から請求項４までの第１の考案では、側溝蓋の前後両端面の夫々が、一側面から他側面に向かって略一定角度で傾斜する傾斜面となっているため、一端側の左右両角部を結ぶ回動軸線は、側溝の幅方向から傾斜する軸線、換言すれば、側溝の長さ方向に対して直交せず、傾斜する軸線となる。よって、側溝蓋の他端側は、側溝の長さ方向に対して斜め方向に回動しようとする。
【００１２】
ところで、本考案では、側溝蓋が、その左右両側面に沿った側壁を有する蓋収容部に収容される状態で、側溝本体に載置されている。このため、側溝蓋の他端側が側溝の長さ方向に対して斜め方向に回動しようとすると、側溝蓋の側面が収容部の側壁に接触し、この接触の抵抗によって、側溝蓋の他端側の回動が規制される。
【００１３】
このように、本考案では、第１の特徴として、側溝蓋の左右方向に傾斜する端面形状及び側溝本体の蓋収容部の構成により、側溝蓋の一端側に荷重が加わった際における他端側の回動が規制されるため、側溝蓋のガタツキを生じ難くすることができる。また、側溝蓋が大きく浮き上がろうとすればする程、側溝蓋の側面と側溝本体の収容部の側壁との接触度合いは大きくなり、側溝蓋の側面と側溝本体の収容部の側壁との接触が、側溝蓋の浮き上がりに対して大きな抵抗となる。このため、側溝蓋に多少のガタツキが生じたとしても、蓋収容部から外れてしまう程に側溝蓋が大きく浮き上がることを防止することができ、側溝蓋を側溝本体から外れ難くすることができる。
【００１４】
また、本考案においては、隣接する他の側溝蓋に対向する側溝蓋の端面が、上面から下面に向かって略一定角度で傾斜する傾斜面、すなわち上下方向に傾斜する傾斜面となっている。そして、連設される個々の側溝蓋は、傾斜面により構成された端面が隣接する他の側溝蓋の端面と略平行状態となるようにして配設される。よって、複数が連設された状態となった個々の側溝蓋の端部は、隣接する他の側溝蓋の端面の下に潜り込んだ状態、或は、隣接する他の側溝蓋の端面の上に張り出した状態となる。
【００１５】
ところで、ガタツキのある側溝蓋において、前端側または後端側の一端側の上面に荷重が加わると、他端側が側溝本体から浮き上がろうとするのであるが、この浮き上がろうとする側の端部が、隣接する他の側溝蓋の端面の下に潜り込んだ状態となっていれば、他の側溝蓋の端面によって浮き上がりが規制される。よって、側溝蓋にガタツキが生じ難くなる。一方、浮き上がろうとする側の端部が、隣接する他の側溝蓋の端面の上に張り出した状態となっていれば、隣接する他の側溝蓋の上面に乗り上げない限り、浮き上がった端部は、隣接する他の側溝蓋の端面上を滑り落ちて、元の状態に戻る。よって、側溝蓋は、その端部がたとえ浮き上がったとしても、側溝本体から外れ難くなる。
【００１６】
このように、本考案では、第２の特徴として、連設された個々の側溝蓋の上下方向に傾斜する端面形状の構成により、側溝蓋の一端側に荷重が加わった際における他端側の浮き上がりを規制したり、たとえ浮き上がったとしても元の状態に戻すことができる。よって、上述した第１の特徴との相乗効果により、より一層、側溝蓋のガタツキを生じ難くしたり、側溝蓋を側溝本体から外れ難くすることができる。
【００１７】
なお、本考案において、側溝蓋の前後両端面の左右方向の傾斜角度は、「５°」、「１０°」、「１５°」、「３０°」等、左右方向に渡って略一定の角度となるように、適宜設定すればよい。また、上下方向の傾斜角度も同様に、「５°」、「１０°」、「１５°」、「３０°」等、上下方向に渡って略一定の角度となるように、適宜設定すればよい。
【００１８】
ところで、本考案における請求項２から請求項４までの考案では、上述に加えて、以下のような作用・効果を得ることができる。
【００１９】
まず、請求項２の考案では、連設される複数の側溝蓋において、個々の側溝蓋の前後両端面が互いに略平行な面であるため、同形状の複数の側溝蓋を同姿勢で配設すれば、複数の側溝蓋を、各側溝蓋の端面同士が略平行状態となるように、好適に連設することができる。
【００２０】
次に、請求項３の考案では、連設される複数の側溝蓋において、個々の側溝蓋の前後両端面が互いに略対称な面であるため、同形状の複数の側溝蓋を前後且つ上下に交互に反転させて異姿勢で配設すれば、複数の側溝蓋を、各側溝蓋の端面同士が略平行状態となるように、好適に連設することができる。
【００２１】
最後に、請求項４の考案は、前後両端面が互いに略平行な面の側溝蓋と互いに略対称な面の側溝蓋との異なる形状の側溝蓋を組合せるため、これらの側溝蓋を適宜組み合わせて配設すれば、複数の側溝蓋を、各側溝蓋の端面同士が略平行状態となるように、好適に連設することができる。
【００２２】
また、異なる形状の複数の側溝蓋を組合せると、平面視において、各側溝蓋の境界線を不規則的な向きとすることができる。よって、何らの装飾も施されずに無味乾燥した態様で連設された複数の側溝蓋全体のデザイン性を向上させることもできる。
【００２３】
さらに、異なる形状の複数の側溝蓋を組合せるため、連設された適宜の側溝蓋について、両端部を双方とも他の側溝蓋の端面に潜り込んだ状態として、両端が共に浮き上がり難い側溝蓋としたり、逆に、両端部を双方とも他の側溝蓋の端面に張り出した状態として、たとえ浮き上がったとしても両端が共に元に戻り易い側溝蓋とすることができる。よって、長尺状の側溝の要所に、所望の機能を果たす側溝蓋を適宜配置することができる。
【００２４】
請求項５の考案は、
「上部に開口部を有する側溝本体と、該側溝本体に連設されて前記開口部を閉蓋する複数の側溝蓋とを備える側溝であって、
前記開口部は、側溝の幅方向を左右方向として前記側溝蓋の左右両側面に沿った側壁を有すると共に該側壁の内側に前記側溝蓋を収容する蓋収容部を備えてなり、
前記側溝蓋は、側溝の長さ方向を前後方向として前後両端面の夫々が、一側面から他側面に向かって略一定角度で傾斜し、且つ、上面から下面に向かって略一定角度で傾斜する傾斜面となっており、
互いに対向する端面が略平行状態となるようにして隣接する二つの側溝蓋が配設されてなり、
加えて、前記側溝本体における前記側溝蓋と接する接面は、曲面により形成され、前記側溝蓋における前記側溝本体と接する接面は、前記側溝本体の接面よりも曲率が大きい曲面により形成されており、
前記側溝蓋は、側溝本体及び側溝蓋の両接面の当接により、下面が接することなく前記側溝本体に載置されることを特徴とする側溝」
である。
【００２５】
また、請求項６の考案は、
「個々の側溝蓋の前後両端面は、互いに略平行となるように、一側面から他側面に向かって同方向に傾斜すると共に上面から下面に向かって同方向に傾斜していることを特徴とする請求項５に記載の側溝」
である。
【００２６】
また、請求項７の考案は、
「個々の側溝蓋の前後両端面は、互いに略対称となるように、一側面から他側面に向かって異方向に傾斜すると共に上面から下面に向かって異方向に傾斜していることを特徴とする請求項５に記載の側溝」
である。
【００２７】
さらに、請求項８の考案は、
「前後両端面が互いに略平行となるように傾斜する側溝蓋と、前後両端面が互いに略対称となるように傾斜する側溝蓋とを組合せて、前記側溝本体の長手方向に複数の側溝蓋を連設してなることを特徴とする請求項５に記載の側溝」
である。
【００２８】
ここで、曲率とは、直線に対して曲線が曲がる度合いであり、例えば、半径が一律の円弧では、半径が小さい円弧程、曲率が大きな曲線となる。
【００２９】
請求項５から請求項８までの第２の考案は、上述した第１の考案に加えて、以下のような作用・効果を得ることができる。
【００３０】
側溝本体と側溝蓋とが互いに接する接面は、側溝蓋側が曲率の大きな曲面により形成されているため、側溝蓋は、側溝本体の平面に面接触する状態ではなく、曲面に線接触する状態で側溝本体に載置されることになる。よって、側溝本体や側溝蓋に多少の歪みが生じていたとしても、側溝本体の長さ方向全体に渡って、側溝蓋を均一に接触させて安定させることができ、側溝蓋に生じるそもそものガタツキを少なくすることができる。このため、端面を傾斜面により形成したことによる側溝蓋のガタツキを抑制する機能、及び、側溝本体から側溝蓋が外れることを抑制する機能を、より効果的に、発揮させることができる。
【００３１】
また、側溝蓋は、その下面が側溝本体に接触しないように側溝本体に載置されるため、側溝本体における側溝蓋を載置する面、すなわち載置面は、蓋収容部の底面ではなく、蓋収容部の側壁の一部により構成されることになる。よって、側溝本体の載置面には、砂利やゴミ等が溜まり難く、側溝本体と側溝蓋との接触部分に砂利やゴミ等が噛むことにより生じる側溝蓋のガタツキも抑制することができる。
【００３２】
さらに、側溝蓋においては、下面ではなく、側面の一部が側溝本体に接触することになるため、側溝蓋の上面に加わる垂直方向の荷重、すなわち垂直荷重は、側溝本体と側溝蓋との接面を介して、接面の法線方向と接線方向とに分散される。よって、側溝蓋の上面に、垂直方向に大きな衝撃荷重が加わったとしても、この側溝蓋から側溝本体に伝達される応力は、分散された小さな応力となる。このため、側溝本体から受ける側溝蓋の反作用的な垂直方向の抗力も、小さくなり、側溝蓋は、垂直方向に大きな衝撃荷重が加わっても、側溝本体から大きく跳ね上げられず、外れ難くなる。
【００３３】
請求項９の考案は、
「上部に開口部を有する側溝本体と、該側溝本体に連設されて前記開口部を閉蓋する複数の側溝蓋とを備える側溝であって、
前記開口部は、側溝の幅方向を左右方向として前記側溝蓋の左右両側面に沿った側壁を有すると共に該側壁の内側に前記側溝蓋を収容する蓋収容部を備えてなり、
前記側溝蓋は、側溝の長さ方向を前後方向として前後両端面の夫々が、一側面から他側面に向かって略一定角度で傾斜し、且つ、上面から下面に向かって略一定角度で傾斜する傾斜面となっており、
互いに対向する端面が略平行状態となるようにして隣接する二つの側溝蓋が配設されてなり、
加えて、前記側溝本体における前記側溝蓋と接する接面は、曲面により形成され、前記側溝蓋における前記側溝本体と接する接面は、前記側溝本体の接面の面形状に対して、幾何学的に略相似で縮小された面形状に形成されており、
前記側溝蓋は、側溝本体及び側溝蓋の両接面の当接により、下面が接することなく前記側溝本体に載置されることを特徴とする側溝」
である。
【００３４】
また、請求項１０の考案は、
「個々の側溝蓋の前後両端面は、互いに略平行となるように、一側面から他側面に向かって同方向に傾斜すると共に上面から下面に向かって同方向に傾斜していることを特徴とする請求項９に記載の側溝」
である。
【００３５】
また、請求項１１の考案は、
「個々の側溝蓋の前後両端面は、互いに略対称となるように、一側面から他側面に向かって異方向に傾斜すると共に上面から下面に向かって異方向に傾斜していることを特徴とする請求項９に記載の側溝」
である。
【００３６】
さらに、請求項１２の考案は、
「前後両端面が互いに略平行となるように傾斜する側溝蓋と、前後両端面が互いに略対称となるように傾斜する側溝蓋とを組合せて、前記側溝本体の長手方向に複数の側溝蓋を連設してなることを特徴とする請求項９に記載の側溝」
である。
【００３７】
請求項９から請求項１２の第３の考案は、上述した第１の考案及び第２の考案に加えて、以下のような作用・効果を得ることができる。
【００３８】
本考案では、側溝本体と側溝蓋との互いに接する接面が曲面により構成されているのであるが、特に、側溝蓋側の接面が、側溝本体側の接面に対して幾何学的に略相似で縮小された面形状となっている。このため、側溝本体側の面及び側溝蓋側の面における線接触する接触部分の近傍では、側溝本体側の面形状と側溝蓋側の面形状との相互の差異が小さくなる。よって、側溝本体側の接面や側溝蓋側の接面に僅かな歪みが生じており、側溝本体と側溝蓋とが設計上通りに接触しないとしても、設計上の接触部分の近傍における大きな差異のない側溝本体側と側溝蓋側との面形状によって上記歪みが吸収されて、側溝本体側と側溝蓋側とが均一に線接触し易くなる。従って、側溝蓋に生じるそもそものガタツキを少なくすることができる。
【００３９】
また、側溝本体に側溝蓋を載置した状態では、側溝本体と側溝蓋との互いに対向する面の間隙が小さくなるため、この間隙から砂利やゴミが侵入し難くなる。よって、側溝本体と側溝蓋との間に砂利やゴミ等が噛むことによって側溝蓋にガタツキが生じることを防止することができる。
【００４０】
【考案の実施の形態】
次に、本考案に係る側溝の実施形態としての一例を、図面に従って詳細に説明する。
【００４１】
図１に示すように、本考案に係る側溝１０は、コンクリートを型枠に打設して成形されたコンクリート製の側溝本体２０と、同様にコンクリートにより成形されたコンクリート製の側溝蓋３０とを備える。なお、本考案では、側溝本体２０及び側溝蓋３０を、コンクリートにより成形するに限らず、金属、樹脂、セラミック等、適宜の材料により成形してもよい。
【００４２】
側溝本体２０は、上方が開放された略Ｕ字状に形成され、上部に開口部２１を備えた所謂「Ｕ字側溝ブロック」により構成されている。そして、上部の開口部２１には、側溝蓋３０を収納状態で載置する蓋収容部２２が設けられている。ここで、蓋収容部２２は、側溝蓋３０の側面に沿った側壁２３を有する構造となっており、載置された側溝蓋３０を、側壁２３の内側に収容する。
【００４３】
次に、側溝蓋３０の詳細を説明する。なお、説明の便宜上、側溝１０の長さ方向を前後方向とし、幅方向を左右方向として、側溝蓋３０の前後の面を端面３２、側溝蓋３０の左右の面を側面３１と称して説明する。
【００４４】
側溝蓋３０の左右両側面３１は、側溝１０の長さ方向に沿った互いに平行な面により構成されているのであるが、前後両端面３２は、一側面３１から他側面３１に向かって、例えば１０°等、略一定の角度で傾斜する傾斜面により構成されている。また、前後両端面３２は、互いに平行となるように、一側面３１から他側面３１に向かって同方向、すなわち同角度で傾斜する面となっている。そして、本例の側溝１０では、同形状の側溝蓋３０が、複数、側溝本体２０の蓋収容部２２に収容した状態で連設されている。
【００４５】
このような側溝１０では、側溝蓋３０にガタツキが生じている場合、図２に示すように、側溝蓋３０の一端側に荷重が加わると（図示Ａ点）、他端側が浮き上がろうとするのあるが（図示矢印Ｃ）、この時、側溝蓋３０の他端側は、側溝蓋３０の一端側の左右両角部を結ぶ線を回動軸線（図示１点鎖線Ｂ）として、上方に回動しようとする。ここで、側溝蓋３０の一端側は、上述の通り傾斜面により構成されているため、上記回動軸線は、側溝１０の幅方向に対して傾斜する。よって、側溝蓋３０の他端側は、側溝１０の長さ方向に対して斜め方向に回動しようとする。しかしながら、側溝蓋３０は、側溝本体２０の蓋収容部２２に収容されているため、上述のように回動しようとしても、その側面３１が蓋収容部２２の側壁２３に接触し、回動が阻止される。よって、側溝蓋３０は、その一端側に荷重が加わっても、他端側が回動せず、ガタツキが生じない。また、多少のガタツキが生じたとしても、側溝蓋３０の他端側が上方に回動すればする程、側溝蓋３０の側面３１が蓋収容部２２の側壁２３に強く接触することになるため、側溝蓋３０は、蓋収容部２２から外れる程、大きく跳ね上げられることがない。
【００４６】
なお、上記例では、連設される複数の側溝蓋３０として、前後両端面３２が互いに平行となるように左右に同方向に傾斜するものを採用した例を示したが、これに限らず、例えば図３（ａ）に示すように、前後両端面３２が互いに対象となるように左右に異方向に傾斜する側溝蓋３０を、交互に反転させて連設してもよい。また、例えば図３（ｂ）に示すように、前後両端面３２が互いに平行となるように左右に同方向に傾斜する側溝蓋３０と、前後両端面３２が互いに対象となるように左右に異方向に傾斜する側溝蓋３０とを適宜組合せてもよい。
【００４７】
一方、本例の側溝蓋３０では、図１に示すように、上述の構成に加えて、前後両端面３２が、上面３３ａから下面３３ｂに向かって、例えば１０°等、略一定の角度で傾斜する傾斜面により構成されている。また、前後両端面３２は、互いに平行となるように、上面３３ａからから下面３３ｂに向かって同方向、すなわち同角度で傾斜する面となっている。そして、本例の側溝１０では、同形状の側溝蓋３０が、複数、側溝本体２０の蓋収容部２２に収容した状態で連設されている。
【００４８】
このような側溝１０では、側溝蓋３０にガタツキが生じている場合、図４に示すように、側溝蓋３０の一端側に荷重が加わると（図示矢印Ａ）、他端側が浮き上がろうとするのあるが（図示矢印Ｂ）、この時、他端側の端面３２は、隣接する他の側溝蓋３０の端面３２に潜り込んだ状態であるため、隣接する他の側溝蓋３０の端面３２によって浮き上がりが阻止される。よって、側溝蓋３０は、その一端側に荷重が加わっても、他端側が浮き上がらず、ガタツキが生じない。
【００４９】
一方、側溝蓋３０の他端側に荷重が加わると（図示矢印Ｃ）、一端側が浮き上がろうとし（図示矢印Ｄ）、この浮き上がりを阻止することはできないのであるが、一端側が大きく浮き上がって他の側溝蓋３０の上面に乗り上げない限り、浮き上がった一端側は、他の側溝蓋３０の傾斜する端面３２上を滑り落ちて、元の状態に戻る。よって、側溝蓋３０は、たとえ一端側が浮き上がったとしても、側溝本体２０から外れ難い。
【００５０】
なお、上記例では、連設される複数の側溝蓋３０として、前後両端面３２が互いに平行となるように上下に同方向に傾斜するものを採用した例を示したが、これに限らず、例えば図５（ａ）に示すように、前後両端面３２が互いに対象となるように上下に異方向に傾斜する側溝蓋３０を、交互に反転させて連設してもよい。また、例えば図５（ｂ）に示すように、前後両端面３２が互いに平行となるように上下に同方向に傾斜する側溝蓋３０と、前後両端面３２が互いに対象となるように上下に異方向に傾斜する側溝蓋３０とを適宜組合せてもよい。
【００５１】
ところで、図６に示すように、本例の側溝１０では、側溝本体２０の蓋収容部２２における側溝蓋３０と接する接面が曲面により構成されている。そして、側溝蓋３０における側溝本体２０と接する接面は、側溝本体２０の接面よりも曲率の大きな曲面により構成されている。よって、側溝本体２０と側溝蓋３０とは、均一に線接触し（図示１点鎖線Ａ）、側溝３０のガタツキがそもそも生じ難い。
【００５２】
また、図示では、側溝本体２０側の接面と側溝蓋３０側の接面との曲率の差が明確となるように誇張してあるため、側溝本体２０と側溝蓋３０との対向する面が略相似な形状となってはいないが、実際には、側溝本体２０と側溝蓋３０との対向する面全体を、側溝蓋３０側が縮小された幾何学的に略相似な面形状とする。これにより、側溝本体２０と側溝蓋３０とが接触する部分近傍における側溝本体２０側の面形状と側溝蓋３０側の面形状の差異を少なくすることができ、側溝本体２０側または側溝蓋３０側の接面に歪みが生じていたとしても、この歪みが僅かであれば、側溝本体２０と側溝蓋３０との設計上の接触部分における近傍の曲面によって、上記歪みが吸収され、側溝本体２０と側溝蓋３０とが良好に線接触する。また、側溝本体２０と側溝蓋３０との対向する面の間隙は、全体に渡って狭くなるため、この間隙から砂利やゴミが侵入し難くなり、砂利やゴミが噛むことによって側溝蓋３０にガタツキが生じることを防止することができる。
【００５３】
本考案に係る側溝は、以上の例に限らず、本考案の要旨を逸脱しない範囲で、適宜変更してもよい。例えば、図示は省略するが、側溝本体を所謂「Ｕ字側溝ブロック」により構成するに限らず、下方が開放された逆Ｕ字状に形成され、上部に天板を備えた所謂「可変側溝ブロック」により構成してもよい。この場合、天板の一部に、複数の側溝蓋を連設して載置する開口部を設ければよい。そして、この開口部に、上述の例のような蓋収容部を設ければよい。
【００５４】
【考案の効果】
以上詳細に説明したように、まず、請求項１から請求項４までの第１の考案によれば、第１の特徴として、側溝蓋の一端側に荷重が加わって他端側が浮き上がろうとしても、側溝蓋の側面が側溝本体の蓋収容部の側壁に接触するため、この浮き上がりを防止することができ、もって、側溝蓋にガタツキが生じ難い側溝とすることができる。また、側溝蓋の他端側がたとえ浮き上がったとしても、浮き上がりが大きくなればなる程、側溝蓋の側面と側溝本体の蓋収容部の側壁との接触度合いが強くなるため、側溝蓋が大きく跳ね上げられることはなく、側溝本体から側溝蓋が外れ難い側溝とすることができる。
【００５５】
加えて、第２の特徴として、側溝蓋の一端側に荷重が加わって他端側が浮き上がろうとしても、この他端側が他の側溝蓋の端面の下に潜り込んだ状態であれば、他の側溝蓋の端面によって浮き上がりを防止することができるため、側溝蓋にガタツキが生じ難い側溝とすることができる。一方、浮き上がろうとする側溝蓋の他端側が他の側溝蓋の端面の上に張り出した状態であれば、他の側溝蓋の端面によって浮き上がった側溝蓋の他端側を元に戻すことができるため、側溝本体から側溝蓋が外れ難い側溝とすることができる。
【００５６】
そして、上述した第１の特徴と第２の特徴との相乗効果により、側溝蓋にガタツキが生じ難く、また、ガタツキが生じたとしても側溝蓋が側溝本体から外れ難い側溝を、より確実に、実現することができる。
【００５７】
次に、請求項５から請求項８までの第２の考案によれば、第１の考案に加えて、側溝蓋を側溝本体に、均一に線接触させることができることから、側溝蓋に生じるそもそものガタツキを少なくすることができ、側溝蓋の端面形状による側溝蓋のガタツキを抑制する機能や側溝本体から側溝蓋が外れることを抑制する機能を、より効果的に発揮させることができる。
【００５８】
次に、請求項９から請求項１２までの第３の考案によれば、第１の考案及び第２の考案に加えて、側溝や側溝蓋に歪みが生じていたとしても、側溝本体と側溝蓋とを均一に線接触し易くすることができることから、側溝蓋に生じるそもそものガタツキを、より一層、少なくすることができ、側溝蓋の端面形状による側溝蓋のガタツキを抑制する機能や側溝本体から側溝蓋が外れることを抑制する機能を、より一層、効果的に発揮させることができる。
【図面の簡単な説明】
【図１】本考案に係る側溝の一例を示す斜視図である。
【図２】側溝本体に側溝蓋を連設した状態を示す平面図である。
【図３】（ａ）及び（ｂ）は、夫々、側溝本体に側溝蓋を連設した状態の別例を示す平面図である。
【図４】側溝蓋を連設した状態を示す縦断面図である。
【図５】（ａ）及び（ｂ）は、夫々、側溝蓋を連設した状態の別例を示す縦断面図である。
【図６】蓋収容部の詳細を示す部分拡大斜視図である。
【符号の説明】
１０　　側溝
２０　　側溝本体
２１　　開口部
２２　　蓋収容部
２３　　側壁
３０　　側溝蓋
３１　　側面
３２　　端面
３３ａ　上面
３３ｂ　下面[0001]
[Technical field to which the invention belongs]
The present invention relates to a gutter having a gutter main body having an opening at an upper portion, and a plurality of gutter lids connected to the gutter main body and closing the opening.
[0002]
[Prior art]
In a gutter provided on a side edge of a road such as a roadway or a sidewalk, a gutter main body having an opening at an upper portion, and a plurality of gutter lids connected to the gutter main body and closing the opening of the gutter main body are provided. Some are provided with: Here, in a general gutter, a contact surface of the gutter main body in contact with the gutter lid and a contact surface of the gutter lid in contact with the gutter main body are formed in a planar shape. In a general gutter, a concrete gutter is used as a gutter body, which is formed by casting concrete into a mold. On the other hand, as the gutter cover, a concrete gutter similar to the gutter body is used, but in addition, it is formed by welding a metal plate such as a galvanized steel plate or casting a metal such as iron. Metallic ones are also used.
[0003]
[Problems to be solved by the invention]
However, in the above-described gutter, it is difficult to bring the gutter body and the gutter cover into uniform contact with each other over the entire contact surface when the gutter cover is placed on the gutter body. This is because it is difficult to form a good smooth surface with the concrete gutter main body or gutter cover, and it is easy to cause distortion after curing the cast concrete, and it is not possible to secure sufficient planar accuracy. Also, even if the gutter lid is made of metal, the gutter main body and the gutter lid cannot be uniformly contacted over the entire contact surface unless the planar accuracy of the gutter main body side is secured in the first place. In addition, distortion tends to occur after being formed by welding or casting, and sufficient planar accuracy of the gutter cover itself cannot be secured.
[0004]
As described above, if the gutter main body and the gutter lid cannot be brought into uniform contact with each other over the entire contact surface, rattling occurs in the gutter lid placed on the gutter main body. If rattling occurs in the gutter, there is a problem that noise is generated when a vehicle or a pedestrian passes over the gutter. In some cases, the gutter lid may come off from the gutter body. In particular, in the gutter provided on the roadway, when the vehicle passes over the gutter cover at a high speed, a large impact load is applied to the gutter cover, so that even if the backlash is slight, the gutter cover is greatly jumped up from the gutter body. There is a possibility that it will come off. As described above, when the gutter cover is detached, the gutter cover protrudes on the road and the opening of the gutter body remains exposed, which is very dangerous.
[0005]
SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a gutter in which a gutter is unlikely to be formed on a gutter cover, and even if a gutter is formed, the gutter cover is less likely to come off from a gutter body.
[0006]
[Means for Solving the Problems]
The means adopted by the present invention to solve the above problems are as follows.
[0007]
The idea of claim 1 is
`` A gutter having a gutter main body having an opening at an upper part, and a plurality of gutter lids provided in series with the gutter main body to close the opening,
The opening portion has a side wall along the left and right side surfaces of the side groove cover with the width direction of the side groove being the left and right direction, and includes a lid housing portion for housing the side groove cover inside the side wall,
Each of the front and rear end surfaces is inclined at a substantially constant angle from one side surface to the other side surface, and the side groove cover is inclined at a substantially constant angle from the upper surface to the lower surface, with the longitudinal direction of the gutter being the longitudinal direction. It has a slope,
A gutter characterized by being provided with two adjacent gutter lids such that end faces facing each other are substantially parallel to each other. "
It is.
[0008]
In addition, the invention of claim 2
`` The front and rear end surfaces of each gutter cover are inclined in the same direction from one side surface to the other side surface and are inclined in the same direction from the upper surface to the lower surface so as to be substantially parallel to each other. The gutter according to claim 1 "
It is.
[0009]
Further, the invention of claim 3 is as follows.
`` The front and rear end surfaces of the individual gutters are inclined in different directions from one side to the other side and are inclined in different directions from the upper surface to the lower surface so as to be substantially symmetric with each other. The gutter according to claim 1 "
It is.
[0010]
Further, the invention of claim 4 is:
`` A combination of a gutter cover that is inclined so that the front and rear end surfaces are substantially parallel to each other, and a gutter cover that is inclined so that the front and rear end surfaces are substantially symmetric to each other, a plurality of gutter covers in the longitudinal direction of the gutter main body. The gutter according to claim 1, wherein the gutter is provided continuously.
It is.
[0011]
When a load is applied to the upper surface of one end of the front end or the rear end of the rattled gutter lid, the other end tends to float up from the gutter body. At this time, the other end to be lifted is rotated with respect to the one end with an axis connecting the left and right corners of the one end to which the load is applied as a rotation axis. In the first invention up to 4, each of the front and rear end surfaces of the gutter cover is an inclined surface which is inclined at a substantially constant angle from one side surface to the other side surface. The dynamic axis is an axis that is inclined from the width direction of the side groove, in other words, an axis that is not orthogonal to the length direction of the side groove but is inclined. Therefore, the other end side of the side groove cover tends to rotate obliquely to the length direction of the side groove.
[0012]
By the way, in the present invention, the gutter lid is placed on the gutter body in a state of being housed in the lid housing portion having the side wall along the left and right side surfaces thereof. For this reason, when the other end of the gutter cover tries to rotate obliquely with respect to the length direction of the gutter, the side surface of the gutter cover comes into contact with the side wall of the housing portion, and the resistance of this contact causes the other end of the gutter cover to move. Side rotation is regulated.
[0013]
As described above, according to the present invention, as a first feature, the end face shape of the gutter lid, which is inclined in the left-right direction, and the configuration of the lid accommodating portion of the gutter body, make it possible to apply a load to one end of the gutter lid. Is restricted, so that rattling of the side groove cover can be suppressed. In addition, as the gutter cover is more likely to float, the degree of contact between the side surface of the gutter cover and the side wall of the housing portion of the gutter main body increases, and the contact between the side surface of the gutter cover and the side wall of the housing portion of the gutter main body is increased. However, there is a large resistance to the lifting of the gutter cover. For this reason, even if a slight backlash occurs in the gutter cover, it is possible to prevent the gutter cover from rising so large that the gutter cover is detached from the lid accommodating portion, and it is possible to make it difficult for the gutter cover to come off from the gutter body.
[0014]
Further, in the present invention, the end face of the side groove cover facing the other adjacent side groove cover is an inclined surface inclined at a substantially constant angle from the upper surface to the lower surface, that is, an inclined surface inclined in the vertical direction. Each of the side gutters that are continuously provided is disposed such that the end surface formed by the inclined surface is substantially in parallel with the end surface of another adjacent gutter cover. Therefore, the ends of the individual gutters in a state where a plurality of the gutters are continuously provided are sunk under the end surface of the other adjacent gutter cover, or on the end surface of the other adjacent gutter cover. It is in a state of overhang.
[0015]
By the way, when a load is applied to the upper surface of one end of the front end or the rear end of the side groove lid with rattling, the other end side tends to rise from the side groove main body. If the portion is sunk under the end face of another adjacent gutter cover, the lift is regulated by the end face of the other gutter cover. Therefore, rattling is less likely to occur in the side groove cover. On the other hand, if the end on the side to be lifted is overhanging on the end face of the other adjacent gutter cover, the raised end portion is not required unless it rides on the upper surface of the other adjacent gutter cover. Slides down on the end face of another adjacent gutter cover and returns to its original state. Therefore, even if the end portion of the gutter cover is lifted, it is difficult for the gutter cover to come off the gutter body.
[0016]
As described above, in the present invention, as a second feature, the configuration of the end face shape that is inclined in the vertical direction of each of the continuous side gutter lids enables the other end side when a load is applied to one end side of the gutter lid to be formed. It is possible to regulate the lifting and to return to the original state even if it rises. Therefore, by the synergistic effect with the above-mentioned first feature, it is possible to make it more difficult for the gutter cover to rattle and to make the gutter cover more difficult to separate from the gutter body.
[0017]
In the present invention, the inclination angle in the left-right direction of the front and rear end surfaces of the gutter cover is a substantially constant angle in the left-right direction, such as “5 °”, “10 °”, “15 °”, “30 °”. What is necessary is just to set suitably. Similarly, the inclination angle in the vertical direction may be appropriately set so as to be substantially constant in the vertical direction, such as “5 °”, “10 °”, “15 °”, “30 °”, and the like. Good.
[0018]
By the way, in the inventions of claims 2 to 4 in the present invention, the following actions and effects can be obtained in addition to the above.
[0019]
First, in the invention of claim 2, since the front and rear end faces of each of the side gutters are substantially parallel to each other in the plurality of side gutters, the plurality of gutters of the same shape are arranged in the same posture. In this case, the plurality of gutter covers can be suitably connected so that the end faces of the respective gutter covers are substantially parallel to each other.
[0020]
Next, in the invention of claim 3, since the front and rear end surfaces of the individual gutters are substantially symmetrical with each other in the plurality of gutters connected in series, the plurality of gutters having the same shape are vertically and vertically moved. By alternately reversing and arranging them in different postures, a plurality of gutter lids can be suitably connected so that the end faces of the respective gutter lids are in a substantially parallel state.
[0021]
Finally, the invention of claim 4 combines the side gutters of different shapes with the side gutters whose front and rear end surfaces are substantially parallel to each other and the side gutters whose surfaces are substantially symmetrical to each other. With such arrangement, the plurality of gutter lids can be suitably connected so that the end faces of the respective gutter lids are in a substantially parallel state.
[0022]
When a plurality of gutters having different shapes are combined, a boundary line of each gutter can be set in an irregular direction in a plan view. Therefore, it is also possible to improve the overall design of the plurality of side gutter lids that are connected in a tasteless and dry manner without any decoration.
[0023]
Further, in order to combine a plurality of gutter lids of different shapes, with respect to an appropriate gutter lid continuously provided, both ends are sunk into the end surface of the other gutter lid, and both ends are hardly lifted up. Conversely, with both ends protruding from the end surface of the other gutter, both gutters can be easily returned to their original positions even if they float. Therefore, a gutter lid that performs a desired function can be appropriately disposed at a key point of the elongated gutter.
[0024]
The invention of claim 5 is
`` A gutter having a gutter main body having an opening at an upper part, and a plurality of gutter lids provided in series with the gutter main body to close the opening,
The opening portion has a side wall along the left and right side surfaces of the side groove cover with the width direction of the side groove being the left and right direction, and includes a lid housing portion for housing the side groove cover inside the side wall,
Each of the front and rear end surfaces is inclined at a substantially constant angle from one side surface to the other side surface, and the side groove cover is inclined at a substantially constant angle from the upper surface to the lower surface, with the longitudinal direction of the gutter being the longitudinal direction. It has a slope,
Two adjacent gutters are arranged so that the end faces facing each other are in a substantially parallel state,
In addition, the contact surface of the gutter body that contacts the gutter cover is formed by a curved surface, and the contact surface of the gutter cover that contacts the gutter body is formed by a curved surface having a greater curvature than the contact surface of the gutter body. Yes,
The gutter is characterized in that the gutter cover is placed on the gutter body without the lower surface being in contact with the contact surfaces of the gutter body and the gutter cover.
It is.
[0025]
The invention of claim 6 is as follows.
`` The front and rear end surfaces of each gutter cover are inclined in the same direction from one side surface to the other side surface and are inclined in the same direction from the upper surface to the lower surface so as to be substantially parallel to each other. The gutter according to claim 5 ".
It is.
[0026]
The invention of claim 7 is as follows.
`` The front and rear end surfaces of the individual gutters are inclined in different directions from one side to the other side and are inclined in different directions from the upper surface to the lower surface so as to be substantially symmetric with each other. The gutter according to claim 5 ".
It is.
[0027]
Further, the invention of claim 8 is:
`` A combination of a gutter cover that is inclined so that the front and rear end surfaces are substantially parallel to each other, and a gutter cover that is inclined so that the front and rear end surfaces are substantially symmetric to each other, a plurality of gutter covers in the longitudinal direction of the gutter main body. The gutter according to claim 5, which is provided continuously.
It is.
[0028]
Here, the curvature refers to the degree to which a curve bends with respect to a straight line. For example, in an arc having a uniform radius, an arc having a smaller radius has a larger curvature.
[0029]
The second invention of claims 5 to 8 can obtain the following operations and effects in addition to the first invention described above.
[0030]
The contact surface where the gutter body and the gutter cover are in contact with each other, since the gutter cover side is formed by a curved surface having a large curvature, the gutter cover is not in a state of surface contact with the plane of the gutter body but in a state of line contact with the curved surface. It will be mounted on the gutter body. Therefore, even if the gutter body and the gutter cover are slightly distorted, the gutter cover can be uniformly contacted and stabilized over the entire length of the gutter body, and the backlash generated on the gutter cover can be improved. Can be reduced. For this reason, the function of suppressing the rattle of the gutter cover due to the formation of the end surface by the inclined surface and the function of suppressing the gutter cover from coming off from the gutter body can be more effectively exerted.
[0031]
Also, since the gutter cover is placed on the gutter body such that the lower surface does not contact the gutter body, the surface on which the gutter cover is placed in the gutter body, that is, the mounting surface is not the bottom surface of the lid housing portion, It is constituted by a part of the side wall of the lid housing portion. Therefore, gravel, dust, and the like hardly accumulate on the mounting surface of the gutter main body, and rattling of the gutter lid caused by gravel, dirt, or the like biting into the contact portion between the gutter main body and the gutter lid can be suppressed.
[0032]
Further, in the gutter cover, not the lower surface but a part of the side surface comes into contact with the gutter body, so that the vertical load applied to the upper surface of the gutter cover, that is, the vertical load, is the contact between the gutter body and the gutter cover. Through the surface, it is distributed in the normal direction and the tangential direction of the tangent surface. Therefore, even if a large impact load is applied to the upper surface of the gutter cover in the vertical direction, the stress transmitted from the gutter cover to the gutter body becomes a small dispersed stress. For this reason, the reaction of the gutter cover received from the gutter body in the vertical direction is also small, and the gutter cover is not greatly jumped up from the gutter body even when a large impact load is applied in the vertical direction, and is less likely to come off.
[0033]
The invention of claim 9 is
`` A gutter having a gutter main body having an opening at an upper part, and a plurality of gutter lids provided in series with the gutter main body to close the opening,
The opening portion has a side wall along the left and right side surfaces of the side groove cover with the width direction of the side groove being the left and right direction, and includes a lid housing portion for housing the side groove cover inside the side wall,
Each of the front and rear end surfaces is inclined at a substantially constant angle from one side surface to the other side surface, and the side groove cover is inclined at a substantially constant angle from the upper surface to the lower surface, with the longitudinal direction of the gutter being the longitudinal direction. It has a slope,
Two adjacent gutters are arranged so that the end faces facing each other are in a substantially parallel state,
In addition, the contact surface of the gutter body that contacts the gutter cover is formed by a curved surface, and the contact surface of the gutter cover that contacts the gutter body is geometrically different from the surface shape of the contact surface of the gutter body. It is formed in a reduced surface shape that is almost similar to
The gutter is characterized in that the gutter cover is placed on the gutter body without the lower surface being in contact with the contact surfaces of the gutter body and the gutter cover.
It is.
[0034]
The invention of claim 10 is as follows.
`` The front and rear end surfaces of each gutter cover are inclined in the same direction from one side surface to the other side surface and are inclined in the same direction from the upper surface to the lower surface so as to be substantially parallel to each other. The gutter according to claim 9 ".
It is.
[0035]
The invention of claim 11 is as follows.
`` The front and rear end surfaces of the individual gutters are inclined in different directions from one side to the other side and are inclined in different directions from the upper surface to the lower surface so as to be substantially symmetric with each other. The gutter according to claim 9 ".
It is.
[0036]
Further, the invention of claim 12 is:
`` A combination of a gutter cover that is inclined so that the front and rear end surfaces are substantially parallel to each other, and a gutter cover that is inclined so that the front and rear end surfaces are substantially symmetric to each other, a plurality of gutter covers in the longitudinal direction of the gutter main body. The gutter according to claim 9, wherein the gutter is provided continuously.
It is.
[0037]
According to the third invention of claims 9 to 12, in addition to the above-described first invention and the second invention, the following operations and effects can be obtained.
[0038]
In the present invention, the contact surfaces of the gutter main body and the gutter cover that are in contact with each other are configured by curved surfaces. In particular, the contact surface of the gutter cover side is geometrically approximately equal to the contact surface of the gutter main body side. It has a similar and reduced surface shape. For this reason, the difference between the surface shape on the gutter body side and the surface shape on the gutter cover side becomes small in the vicinity of the line-contacting portions on the surface on the gutter body side and the surface on the gutter cover side. Therefore, a slight distortion occurs in the contact surface on the side of the gutter main body and the contact surface on the side of the gutter lid. Even if the gutter main body and the gutter lid do not contact as designed, there is a large difference in the vicinity of the designed contact portion. The above-mentioned distortion is absorbed by the surface shapes of the side groove main body side and the side groove lid side, which are not provided, and the side groove main body side and the side groove lid side easily and uniformly come into line contact. Therefore, it is possible to reduce the backlash generated in the side groove cover in the first place.
[0039]
Further, when the gutter cover is placed on the gutter main body, the gap between the opposing surfaces of the gutter main body and the gutter cover becomes small, so that gravel and dust hardly enter from this gap. Therefore, it is possible to prevent rattle or dust from being caught between the gutter main body and the gutter cover, thereby preventing rattling of the gutter cover.
[0040]
[Embodiment of the invention]
Next, an example of an embodiment of the gutter according to the present invention will be described in detail with reference to the drawings.
[0041]
As shown in FIG. 1, the gutter 10 according to the present invention includes a concrete gutter main body 20 formed by casting concrete into a mold and a concrete gutter cover 30 similarly formed of concrete. Prepare. In the present invention, the gutter main body 20 and the gutter cover 30 are not limited to being formed of concrete, but may be formed of an appropriate material such as metal, resin, and ceramic.
[0042]
The side groove main body 20 is formed in a so-called “U-shaped side groove block” which is formed in a substantially U-shape with an upper part opened and has an opening 21 at an upper part. The upper opening 21 is provided with a lid accommodating portion 22 on which the gutter lid 30 is placed in an accommodated state. Here, the lid accommodating portion 22 has a structure having a side wall 23 along the side surface of the gutter cover 30, and accommodates the placed gutter cover 30 inside the side wall 23.
[0043]
Next, details of the gutter cover 30 will be described. For convenience of description, the longitudinal direction of the side groove 10 is referred to as the front-rear direction, the width direction is referred to as the left-right direction, the front and rear surfaces of the side groove cover 30 are referred to as end surfaces 32, and the left and right surfaces of the side groove cover 30 are referred to as side surfaces 31. .
[0044]
The left and right side surfaces 31 of the side groove cover 30 are formed by surfaces parallel to each other along the length direction of the side groove 10, and the front and rear end surfaces 32 extend from one side surface 31 to the other side surface 31, for example. It is constituted by an inclined surface inclined at a substantially constant angle such as 10 °. The front and rear end surfaces 32 are surfaces inclined in the same direction from one side surface 31 to the other side surface 31, that is, at the same angle so as to be parallel to each other. In the side groove 10 of the present example, a plurality of side groove lids 30 having the same shape are continuously provided in a state of being housed in the lid housing portion 22 of the side groove main body 20.
[0045]
In such a side groove 10, when the side groove cover 30 is rattled, as shown in FIG. 2, when a load is applied to one end of the side groove cover 30 (point A in the drawing), the other end tends to rise. However, at this time, the other end side of the gutter cover 30 is turned upward with a line connecting the left and right corners on one end side of the gutter cover 30 as a rotation axis (a one-dot chain line B in the drawing). Try to move. Here, since one end side of the side groove cover 30 is configured by the inclined surface as described above, the rotation axis is inclined with respect to the width direction of the side groove 10. Therefore, the other end of the side groove cover 30 tends to rotate obliquely with respect to the length direction of the side groove 10. However, since the gutter lid 30 is accommodated in the lid accommodating portion 22 of the gutter main body 20, even if it tries to rotate as described above, the side surface 31 comes into contact with the side wall 23 of the lid accommodating portion 22, and the rotation is stopped. Will be blocked. Therefore, even if a load is applied to one end of the side groove cover 30, the other end does not rotate and rattling does not occur. Further, even if some backlash occurs, the more the other end side of the gutter cover 30 rotates upward, the stronger the side surface 31 of the gutter cover 30 comes into contact with the side wall 23 of the lid housing portion 22. The side groove lid 30 is not greatly jumped up as it comes off the lid housing portion 22.
[0046]
Note that, in the above example, an example is shown in which a plurality of side groove covers 30 that are continuously provided are inclined in the same direction to the left and right so that the front and rear end surfaces 32 are parallel to each other. For example, as shown in FIG. 3A, the side groove lids 30 which are inclined in different directions to the left and right such that the front and rear end surfaces 32 are symmetrical may be alternately reversed and provided continuously. Further, as shown in FIG. 3B, for example, the side groove cover 30 is inclined left and right in the same direction so that the front and rear end surfaces 32 are parallel to each other, and the left and right are different so that the front and rear end surfaces 32 are symmetrical with each other. The side groove cover 30 inclined in the direction may be appropriately combined.
[0047]
On the other hand, in the gutter cover 30 of this example, as shown in FIG. 1, in addition to the above-described configuration, the front and rear end surfaces 32 are inclined from the upper surface 33 a toward the lower surface 33 b at a substantially constant angle, for example, 10 °. It is constituted by an inclined surface. The front and rear end faces 32 are inclined in the same direction, that is, at the same angle from the upper surface 33a toward the lower surface 33b so as to be parallel to each other. In the side groove 10 of the present example, a plurality of side groove lids 30 having the same shape are continuously provided in a state of being housed in the lid housing portion 22 of the side groove main body 20.
[0048]
In such a side groove 10, when the side groove cover 30 is rattled, as shown in FIG. 4, when a load is applied to one end of the side groove cover 30 (arrow A in the drawing), the other end tends to rise. However, at this time, since the end face 32 on the other end side is sunk into the end face 32 of the adjacent other gutter cover 30 at this time, it is lifted by the end face 32 of the other adjacent gutter cover 30. Is prevented. Therefore, even if a load is applied to one end of the gutter 30, the other end does not float and no rattling occurs.
[0049]
On the other hand, when a load is applied to the other end of the gutter 30 (arrow C in the drawing), the one end tries to float (arrow D in the drawing), and this lifting cannot be prevented. Unless it rides on the upper surface of another gutter 30, the raised one end slides down on the inclined end surface 32 of the other gutter 30 and returns to its original state. Therefore, the gutter cover 30 is not easily detached from the gutter body 20 even if one end is raised.
[0050]
Note that, in the above example, an example is shown in which a plurality of side groove covers 30 that are continuously provided are vertically inclined in the same direction so that the front and rear end surfaces 32 are parallel to each other. However, the present invention is not limited to this. For example, as shown in FIG. 5 (a), the side groove covers 30 which are inclined in different directions in the vertical direction so that the front and rear end surfaces 32 are symmetrical may be alternately reversed and provided continuously. Further, as shown in FIG. 5 (b), for example, the side groove cover 30 which is vertically inclined in the same direction so that the front and rear end faces 32 are parallel to each other, and is vertically different so that the front and rear end faces 32 are symmetrical with each other. The side groove cover 30 inclined in the direction may be appropriately combined.
[0051]
By the way, as shown in FIG. 6, in the side groove 10 of the present example, the contact surface of the lid housing portion 22 of the side groove main body 20 that comes into contact with the side groove cover 30 is formed by a curved surface. The contact surface of the side groove cover 30 that comes into contact with the side groove main body 20 is configured by a curved surface having a larger curvature than the contact surface of the side groove main body 20. Therefore, the side groove main body 20 and the side groove cover 30 are uniformly in line contact (indicated by a dashed line A in the drawing), and rattling of the side groove 30 hardly occurs in the first place.
[0052]
Further, in the drawing, since the difference in curvature between the contact surface on the side of the gutter body 20 and the contact surface on the side of the gutter cover 30 is exaggerated, the facing surfaces of the gutter body 20 and the gutter cover 30 are different. Although not substantially similar in shape, in practice, the entire opposing surfaces of the gutter main body 20 and the gutter cover 30 are formed into geometrically substantially similar surface shapes in which the gutter cover 30 side is reduced. Thereby, the difference between the surface shape on the side groove body 20 side and the surface shape on the side groove cover 30 side near the portion where the side groove body 20 and the side groove cover 30 are in contact can be reduced, and the side groove body 20 side or the side groove cover 30 side Even if the contact surface has a distortion, if the distortion is slight, the distortion is absorbed by the curved surface near the designed contact portion between the side groove main body 20 and the side groove lid 30, and the side groove main body 20 Good line contact is made with the side groove cover 30. Further, since the gap between the opposing surfaces of the gutter main body 20 and the gutter cover 30 is narrowed over the whole, it is difficult for the gravel and dust to enter from the gap, and the gutter and the dust bite into the gutter cover 30 by being bitten. Can be prevented from occurring.
[0053]
The gutter according to the present invention is not limited to the above example, and may be appropriately changed without departing from the gist of the present invention. For example, although not shown, the side groove main body is not limited to a so-called “U-shaped side groove block”, and is formed in an inverted U-shape with an open lower portion and a so-called “variable side groove block” having a top plate on an upper portion. ". In this case, an opening may be provided in a part of the top plate in which a plurality of gutters are connected and placed. Then, a lid housing portion as in the above-described example may be provided in this opening.
[0054]
[Effect of the invention]
As described in detail above, according to the first invention of claims 1 to 4, as a first feature, a load is applied to one end of the gutter cover and the other end will rise. Even so, since the side surface of the gutter cover comes into contact with the side wall of the lid accommodating portion of the gutter main body, this floating can be prevented, and thus the gutter cover can be formed into a gutter with less rattling. Also, even if the other end of the gutter cover rises, the greater the lift, the greater the degree of contact between the side surface of the gutter cover and the side wall of the lid housing portion of the gutter body, so that the gutter cover jumps up significantly. It is possible to make the side groove not easily detached from the side groove main body.
[0055]
In addition, as a second feature, even if a load is applied to one end of the gutter lid and the other end is going to float, if the other end is sunk under the end face of the other gutter lid, the other feature is obtained. Since the floating can be prevented by the end face of the side groove cover, it is possible to form a side groove in which the side groove cover hardly rattles. On the other hand, if the other end of the gutter to be lifted protrudes above the end surface of the other gutter, it is possible to return the other end of the gutter to which the other gutter has risen. Therefore, it is possible to form a side groove in which the side groove cover is not easily detached from the side groove main body.
[0056]
Then, due to the synergistic effect of the above-described first feature and second feature, rattling is less likely to occur in the gutter cover, and even if rattling occurs, the gutter that is less likely to come off the gutter body is more reliably formed. Can be realized.
[0057]
Next, according to the second invention of claims 5 to 8, in addition to the first invention, since the gutter cover can be brought into uniform line contact with the gutter main body, the gutter formed on the gutter cover in the first place. Can be reduced, and the function of suppressing the rattle of the side groove cover due to the end face shape of the side groove cover and the function of suppressing the side groove cover from coming off from the side groove main body can be more effectively exerted.
[0058]
Next, according to the third invention of claims 9 to 12, in addition to the first invention and the second invention, even if the side groove or the side groove cover is distorted, the side groove main body and the side groove The function of suppressing the backlash of the side groove cover due to the end face shape of the side groove cover and the side groove main body can be further reduced since the back cover can be easily and uniformly contacted with the line, so that the backlash generated in the side groove cover can be further reduced. The function of suppressing the gutter lid from coming off from can be more effectively exerted.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a side groove according to the present invention.
FIG. 2 is a plan view showing a state in which a gutter cover is continuously provided on the gutter body.
FIGS. 3 (a) and 3 (b) are plan views each showing another example of a state in which a gutter cover is continuously provided on the gutter body.
FIG. 4 is a longitudinal sectional view showing a state in which side gutters are provided in series.
FIGS. 5A and 5B are longitudinal cross-sectional views showing another example of a state in which side gutters are provided in series.
FIG. 6 is a partially enlarged perspective view showing details of a lid accommodating portion.
[Explanation of symbols]
Reference Signs List 10 side groove 20 side groove main body 21 opening 22 lid housing section 23 side wall 30 side groove lid 31 side surface 32 end surface 33a upper surface 33b lower surface

Claims

A gutter having a gutter main body having an opening at an upper portion, and a plurality of gutter lids that are provided continuously with the gutter main body and close the opening,
The opening portion has a side wall along the left and right side surfaces of the side groove cover with the width direction of the side groove being the left and right direction, and includes a lid housing portion for housing the side groove cover inside the side wall,
Each of the front and rear end surfaces is inclined at a substantially constant angle from one side surface to the other side surface, and the side groove cover is inclined at a substantially constant angle from the upper surface to the lower surface, with the longitudinal direction of the gutter being the longitudinal direction. It has a slope,
A side gutter, wherein two side gutter lids are arranged so that end faces facing each other are substantially in a parallel state.

The front and rear end surfaces of each gutter cover are inclined in the same direction from one side surface to the other side surface and are inclined in the same direction from the upper surface to the lower surface so as to be substantially parallel to each other. The gutter according to claim 1.

The front and rear end surfaces of each gutter cover are characterized by being inclined in different directions from one side surface to the other side surface and in different directions from the upper surface to the lower surface so as to be substantially symmetric with each other. The gutter according to claim 1.

A plurality of side groove covers are connected in the longitudinal direction of the side groove main body by combining a side groove cover that is inclined so that the front and rear end surfaces are substantially parallel to each other and a side groove cover that is inclined so that the front and rear end surfaces are substantially symmetric to each other. The side groove according to claim 1, wherein the side groove is provided.

A gutter having a gutter main body having an opening at an upper portion, and a plurality of gutter lids that are provided continuously with the gutter main body and close the opening,
The opening portion has a side wall along the left and right side surfaces of the side groove cover with the width direction of the side groove being the left and right direction, and includes a lid housing portion for housing the side groove cover inside the side wall,
Each of the front and rear end surfaces is inclined at a substantially constant angle from one side surface to the other side surface, and the side groove cover is inclined at a substantially constant angle from the upper surface to the lower surface, with the longitudinal direction of the gutter being the longitudinal direction. It has a slope,
Two adjacent gutters are arranged so that the end faces facing each other are in a substantially parallel state,
In addition, the contact surface of the gutter body that contacts the gutter cover is formed by a curved surface, and the contact surface of the gutter cover that contacts the gutter body is formed by a curved surface having a greater curvature than the contact surface of the gutter body. Yes,
The gutter is characterized in that the gutter cover is placed on the gutter body without the lower surface being in contact with the contact surfaces of the gutter body and the gutter cover.

The front and rear end surfaces of each gutter cover are inclined in the same direction from one side surface to the other side surface and are inclined in the same direction from the upper surface to the lower surface so as to be substantially parallel to each other. The gutter according to claim 5.

The front and rear end surfaces of each gutter cover are characterized by being inclined in different directions from one side surface to the other side surface and in different directions from the upper surface to the lower surface so as to be substantially symmetric with each other. The gutter according to claim 5.

A plurality of side groove covers are connected in the longitudinal direction of the side groove main body by combining a side groove cover that is inclined so that the front and rear end surfaces are substantially parallel to each other and a side groove cover that is inclined so that the front and rear end surfaces are substantially symmetric to each other. The side groove according to claim 5, wherein the side groove is provided.

A gutter having a gutter main body having an opening at an upper portion, and a plurality of gutter lids that are provided continuously with the gutter main body and close the opening,
The opening portion has a side wall along the left and right side surfaces of the side groove cover with the width direction of the side groove being the left and right direction, and includes a lid housing portion for housing the side groove cover inside the side wall,
Each of the front and rear end surfaces is inclined at a substantially constant angle from one side surface to the other side surface, and the side groove cover is inclined at a substantially constant angle from the upper surface to the lower surface, with the longitudinal direction of the gutter being the longitudinal direction. It has a slope,
Two adjacent gutters are arranged so that the end faces facing each other are in a substantially parallel state,
In addition, the contact surface of the gutter body that contacts the gutter cover is formed by a curved surface, and the contact surface of the gutter cover that contacts the gutter body is geometrically different from the surface shape of the contact surface of the gutter body. It is formed in a reduced surface shape that is almost similar to
The gutter is characterized in that the gutter cover is placed on the gutter body without the lower surface being in contact with the contact surfaces of the gutter body and the gutter cover.

The front and rear end surfaces of each gutter cover are inclined in the same direction from one side surface to the other side surface and are inclined in the same direction from the upper surface to the lower surface so as to be substantially parallel to each other. The gutter according to claim 9.

The front and rear end surfaces of each gutter cover are characterized by being inclined in different directions from one side surface to the other side surface and in different directions from the upper surface to the lower surface so as to be substantially symmetric with each other. The gutter according to claim 9.

A plurality of side groove covers are connected in the longitudinal direction of the side groove main body by combining a side groove cover that is inclined so that the front and rear end surfaces are substantially parallel to each other and a side groove cover that is inclined so that the front and rear end surfaces are substantially symmetric to each other. The side groove according to claim 9, wherein the side groove is provided.