JP4433444B2

JP4433444B2 - Grating lid for side groove

Info

Publication number: JP4433444B2
Application number: JP2001288436A
Authority: JP
Inventors: 久義大栗
Original assignee: 株式会社淀川製鋼所
Priority date: 2001-09-21
Filing date: 2001-09-21
Publication date: 2010-03-17
Anticipated expiration: 2021-09-21
Also published as: JP2003096899A

Description

【０００１】
【発明の属する技術分野】
本発明は、車道と歩道との間の段差を無くすために側溝に敷設されるグレーチング蓋に関する。
【０００２】
【従来の技術】
一般に歩道は車道よりも高くなっていて段差がある。この段差が車道と歩道との間を乗り降りする車両などにとって障害になる。そのため、該当箇所の側溝に敷設されるコンクリート製のブロック蓋は、前記段差を吸収する上面形状にすることがある。その場合のブロック蓋の上面は、溝幅方向の歩道側を縁石とほぼ面一状にして、車道側に向かって下り傾斜する段付き状に形成される。
【０００３】
問題は、側溝に前記形状のブロック蓋を敷設するに際し、排水性能を確保するためにブロック蓋の間に鋼製のグレーチング蓋を所々に敷設した場合である。通常のグレーチング蓋は、溝幅方向にわたって同一高さに形成されているので、グレーチング蓋の敷設箇所において車道と歩道との間の段差が解消できず、更に該当のグレーチング蓋と隣のブロック蓋との間にも、ブロック蓋の上面形状に応じた段差が生じるからである。
【０００４】
かかる段差障害を解消するために、本発明者は、例えば実公昭６１−３９２３号公報に示すごとく、鋼板製の溝蓋やプラスチックなどからなるプレートの類を用意し、側溝上に敷設したグレーチング蓋の上面に、この種のプレートを車道と歩道との間の渡り板として配置することを検討した。
【０００５】
【発明が解決しようとする課題】
しかし、もともとグレーチング蓋の上面は滑りやすいうえに、前記プレートは、比較的軽量であるため、車両などの通過時の衝撃で移動して側溝から外れやすい。更にプレートは、ほぼ平板状であって強度が十分ではないため、車両などの重量で変形するおそれがある。また、プレートが排水性能を阻害するところに問題がある。
【０００６】
本発明の目的は、車道と歩道との間に段差があっても車両などが容易に乗り降りできる側溝用グレーチング蓋を得るにある。本発明の目的は、コンクリート製のブロック蓋が敷設された側溝において、ブロック蓋間に配置したとき、ブロック蓋との間でも段差なく連続状につながり、本来の排水性が確保された側溝用グレーチング蓋を得ることにある。本発明の目的は、車両などの通過時の衝撃で不用意に外れることがなく、車両などの重量で変形し難い側溝用グレーチング蓋を得るにある。本発明の目的は、人や車両もスリップし難い側溝用グレーチング蓋を得ることにある。
【０００７】
【課題を解決するための手段】
請求項１記載の本発明に係る側溝用グレーチング蓋は、図１ないし図４に示すごとく、歩道１よりも低位にある車道２の側溝３の開口上面を塞ぐ鋼製のグレーチング本体１３と、グレーチング本体１３の上面に溶接される鋼製の上部グレーチング１４とからなる。側溝３の開口上部の溝幅方向の左右には蓋受け段部６・６を設けてあり、この蓋受け段部６・６にグレーチング本体１３の下面の溝幅方向の左右両端部が受け止め支持された状態において、グレーチング本体１３の上面が、車道２と略同一高さになるよう設定されている。上部グレーチング１４の溝幅方向寸法は、グレーチング本体１３のそれよりも小さく寸法設定されており、上部グレーチング１４は、これの上面が歩道１と略面一状になる高さに寸法設定されている。上部グレーチング１４はグレーチング本体１３の溝幅方向の一端側に片寄せて配置されることにより、グレーチング本体１３の溝幅方向の歩道１側となる一端面１３ａ上に、上部グレーチング１４の溝幅方向の歩道１側となる一端面１４ａが、略面一状に位置しているとともに、上部グレーチング１４の溝幅方向の車道２側となる他端面１４ｂが、グレーチング本体１３の溝幅方向の中間に位置している。かくして、上部グレーチング１４の溝幅方向の他端面１４ｂの上端部と、グレーチング本体１３の上面との間に、グレーチング本体１３に向かって下り傾斜する傾斜板２５が前後方向にわたって架け渡された状態で溶接されている。
【０００８】
請求項２記載の本発明は、図１および図４に示すごとく、歩道１よりも低位にある車道２の側溝３の開口上面を塞ぐコンクリート製のブロック蓋５を有し、ブロック蓋５は、下面の溝幅方向の左右両端部が、側溝３の開口上面部の溝幅方向の左右に設けた蓋受け段部６・６に受け止め支持されており、ブロック蓋５の上面が、溝幅方向の一端側が歩道１の上面と略面一状の平坦面に形成された第１上面部分９と、溝幅方向の他端側が車道２の上面と略面一状の平坦面に形成された第２上面部分１０と、第１上面部分９と第２上面部分１０との境界において第１上面部分９から第２上面部分１０に向けて下り傾斜する傾斜面部分１１とからなり、隣接するブロック蓋５・５間に配置されて側溝３の開口上面を塞ぐ側溝用グレーチング蓋を対象とする。その側溝用グレーチング蓋Ａは、下面の溝幅方向の左右両端部が側溝３の蓋受け段部６・６に受け止め支持される鋼製のグレーチング本体１３と、グレーチング本体１３の上面に溶接される鋼製の上部グレーチング１４とからなる。上部グレーチング１４の溝幅方向の寸法は、グレーチング本体１３のそれよりも小さく寸法設定されており、上部グレーチング１４がグレーチング本体１３の溝幅方向の一端側に片寄せて配置されることにより、グレーチング本体１３の溝幅方向の歩道１側となる一端面１３ａ上に、上部グレーチング１４の溝幅方向の歩道１側となる一端面１４ａが略面一状に位置しているとともに、上部グレーチング１４の溝幅方向の車道２側となる他端面１４ｂが、グレーチング本体１３の溝幅方向の中間に位置している。上部グレーチング１４の溝幅方向の他端面１４ｂの上端部と、グレーチング本体１３の上面との間には、グレーチング本体１３に向かって下り傾斜する傾斜板２５が前後方向にわたって掛け渡された状態で溶接されている。側溝３の蓋受け段部６・６にグレーチング本体１３を受け止め支持した状態において、上部グレーチング１４の上面がブロック蓋５の第１上面部分９と、グレーチング本体１３の上面がブロック蓋５の第２上面部分１０と、傾斜板２５の上面がブロック蓋５の傾斜面部分１１とそれぞれ略面一状になるよう形成されていることを特徴とする。このことは、上部グレーチング１４の上面が歩道１の上面と、グレーチング本体１３の上面が車道２の上面とそれぞれ略同一状に形成されていることを意味する。
【０００９】
請求項３記載の本発明に係るグレーチング蓋は、図５ないし図８に示すごとく、歩道１よりも低位にある車道２の側溝３の開口上面を塞ぐ鋼製のグレーチング本体１３と、グレーチング本体１３の上面に溶接される鋼製の上部グレーチング１４とからなる。側溝３の開口上部の溝幅方向の左右には蓋受け段部６・６を設けてあり、この蓋受け段部６・６にグレーチング本体１３の下面の溝幅方向の左右両端部が受け止め支持された状態において、グレーチング本体１３の上面が車道２と略同一高さになるよう設定されている。上部グレーチング１４の溝幅方向寸法は、グレーチング本体１３のそれよりも小さく寸法設定されている。上部グレーチング１４がグレーチング本体１３の溝幅方向の一端側に片寄せて配置されることにより、グレーチング本体１３の溝幅方向の歩道１側となる一端側に、上部グレーチング１４の溝幅方向の歩道１側となる一端側を、上部グレーチング１４が車道２側に向かって下り傾斜姿勢になるよう持ち上げ支持する鋼製の支持体２６が、グレーチング本体１３と上部グレーチング１４とにそれぞれ溶接されている。これにより、支持体２６の上面板２８ｂが、歩道１と略同一高さに設定されているとともに、上部グレーチング１４の傾斜下端部が、グレーチング本体１３の溝幅方向の中間に位置しており、上部グレーチング１４を構成するメインバー２０の上面に、滑り止め用の凹凸２４が形成されていることを特徴とする。
【００１０】
請求項４記載の本発明は、図５ないし図８に示すごとく、歩道１よりも低位にある車道２の側溝３の開口上面を塞ぐコンクリート製のブロック蓋５を有し、ブロック蓋５は、下面の溝幅方向の左右両端部が、側溝３の開口上面部の溝幅方向の左右に設けた蓋受け段部６・６に受け止め支持されており、ブロック蓋５の上面は、溝幅方向の一端側が歩道１の上面と略面一状の平坦面に形成された第１上面部分９と、溝幅方向の他端側が車道２の上面と略面一状の平坦面に形成された第２上面部分１０と、第１上面部分９から第２上面部分１０に向けて下り傾斜する傾斜面部分１１とからなり、隣接するブロック蓋５・５間に配置されて側溝３の開口上面を塞ぐ側溝用グレーチング蓋を対象とする。その側溝用グレーチング蓋Ａは、下面の溝幅方向の左右両端部が側溝３の蓋受け段部６・６に受け止め支持される鋼製のグレーチング本体１３と、グレーチング本体１３の上面に溶接される鋼製の上部グレーチング１４とからなる。上部グレーチング１４の溝幅方向の寸法は、グレーチング本体１３のそれよりも小さく寸法設定されている。上部グレーチング１４はグレーチング本体１３の溝幅方向の一端側に片寄せて配置することにより、グレーチング本体１３の溝幅方向の歩道１側となる一端側に、上部グレーチング１４の溝幅方向の歩道１側となる一端側を、上部グレーチング１４が車道２側に向かって下り傾斜姿勢になるよう持ち上げ支持する鋼製の支持体２６が、グレーチング本体１３と上部グレーチング１４とにそれぞれ溶接されている。かくして、側溝３の蓋受け段部６・６にグレーチング本体１３を受け止め支持した状態において、支持体２６の上面板２８ｂがブロック蓋５の第１上面部分９と、上部グレーチング１４の上面がブロック蓋５の傾斜面部分１１と、グレーチング本体１３の上面がブロック蓋５の第２上面部分１０とそれぞれ略面一状になるよう形成されていることを特徴とする。
【００１１】
請求項５記載の本発明は、請求項３または４記載の側溝用グレーチングにおいて、支持体２６の立ち上がり部の外面２６ａが、グレーチング本体１３の溝幅方向の歩道１側の一端面１３ａに対して略面一状に位置している。
【００１２】
請求項６記載の本発明は、請求項３または４記載の側溝用グレーチングにおいて、上部グレーチング１４の溝幅方向の車道２側の他端面１４ｂの上端部と、グレーチング本体１３の上面との間に、グレーチング本体１３に向かって下り傾斜する傾斜板２９が前後方向にわたって架け渡された状態で溶接されている。
【００１３】
請求項７記載の本発明は、請求項３または４記載の側溝用グレーチングにおいて、支持体２６がグレーチング本体１３および上部グレーチング１４の前後方向にわたって延びており、グレーチング本体１３、上部グレーチング１４および支持体２６の前後方向の両端に、鋼製の支持板３０・３０が溶接されている。
【００１４】
【発明の作用効果】
請求項１記載の本発明によれば、上部グレーチング１４が歩道１と車道２との段差寸法に相当する高さ寸法を有する。従って、歩道１と上部グレーチング１４の上面との間には、実質的に段差が生じない。但し、グレーチング本体１３の上面と上部グレーチング１４の車道２側の上面との間には、先の段差を生じるので、この段差を傾斜板２５で解消している。その結果、例えば車道２側の車両や自転車は、グレーチング本体１３の上面から傾斜板２５を介して上部グレーチング１４の上面に乗り上がり、そのまま歩道１に到る。歩道１から車道２に降りる場合は、逆の要領になる。かくして車道２と歩道１との間に段差があっても、車両などは抵抗なく乗り降りをすることができる。上部グレーチング１４の溝幅方向の一端面１４ａが、グレーチング本体１３の溝幅方向の一端面１３ａに対して略面一状に形成されているので、歩道１と上部グレーチング１４との間に大きな隙間が発生するのを防止でき、車両等の通過時のガタつき、およびそれに基づく騒音発生を防止でき、かつ女性のハイヒールなどが落ち込むこともよく防止できる。上部グレーチング１４は、全体が単なる平板製ではなく、文字通りグレーチングであるから構造強度は十二分に確保されており、車両等の重量で変形損傷することもない。そのうえで、グレーチング本体１３上に上部グレーチング１４が一体に付設されているだけであるから、全体として軽量で取り扱いやすく、排水性も良好に確保されている。また、グレーチング本体１３は共用して、前記段差に応じて上部グレーチング１４の高さ（厚み）寸法を変えるだけでよいので、製作コストの低減化を図れることにもなる。その際、車道２と歩道１との間の段差が大きい場合、これに伴って上部グレーチング１４は高さ寸法が大きくなるため、グレーチング本体１３と上部グレーチング１４との段差を吸収する傾斜板２５の存在が有意義となる。
【００１５】
請求項２記載の本発明によれば、コンクリート製のブロック蓋５が敷設された側溝３において、側溝３の随所に請求項１記載のグレーチング蓋Ａがブロック蓋５・５間に配置されているので、グレーチング蓋Ａの存在箇所において路面上の雨水などを側溝３へ良好に排出できる。そのブロック蓋５は、側溝３の蓋受け段部６・６に落とし込んで受け止め支持した状態において、ブロック蓋５の上面が、歩道１の上面と略面一状になる第１上面部分９と、車道２の上面と略面一状になる第２上面部分１０と、第１上面部分９と第２上面部分１０とをつなぐ傾斜面部分１１とからなるものとした。従って、ブロック蓋５の上面においても、歩道１と車道２との段差が傾斜面部分１１で解消されており、車両などは車道２と歩道１との間を円滑に乗り降りできる。そのうえで、請求項１記載の作用効果に加えて、ブロック蓋５とグレーチング蓋Ａとの間においては、上部グレーチング１４の上面がブロック蓋５の第１上面部分９と、グレーチング本体１３の上面がブロック蓋５の第２上面部分部分１０と、傾斜板２５の上面がブロック蓋５の傾斜面部分１１とそれぞれ面一状になるよう形成されているので、ブロック蓋５とグレーチング蓋Ａとの間にも段差が生じることなく、これらの間も車両などが円滑に通過することができる。
【００１６】
請求項３記載の本発明によれば、グレーチング本体１３の上面に上部グレーチング１４を支持体２６を介して溶接することにより、上部グレーチング１４は歩道１側が高く車道２側が低くなる傾斜状に一体化してある。従って、例えば車道２側の車両などは、グレーチング本体１３、上部グレーチング１４の傾斜上面ついで支持体２６の上面板２８ｂを経て歩道１へ円滑に乗り上がり、同様にして歩道１から車道２へと降りることができる。その結果、請求項１と同様に車道２と歩道１との間に段差があっても車両などはスムーズに乗り降りができる。全体的に軽量で取り扱いやすく、かつ排水性も良好に確保できる。上部グレーチング１４のメインバー２０の上面には、滑り止め用の凹凸２４を設けてあるので、上部グレーチング１４の上面が傾斜していても、これを踏んだとき人などが滑ることがなく安全である。また、車道２と歩道１との間の段差の違いは、支持体２６の高さを変えるだけで、グレーチング本体１３および上部グレーチング１４を共用することが可能となり、全体の製作コストの低減化に有利である。
【００１７】
請求項４記載の本発明によれば、コンクリート製のブロック蓋５が敷設された側溝３において、側溝３の随所に請求項３記載のグレーチング蓋Ａがブロック蓋５・５間に配置されているので、グレーチング蓋Ａの存在箇所において路面上の雨水などを側溝３へ良好に排水できる。そのブロック蓋５は、側溝３の蓋受け段部６・６に落とし込んで受け止め支持した状態において、ブロック蓋５の上面が、歩道１の上面と略面一状になる第１上面部分９と、車道２の上面と略面一状になる第２上面部分１０と、第１上面部分９と第２上面部分１０とをつなぐ傾斜面部分１１とからなるものとした。従って、ブロック蓋５の上面においても、歩道１と車道２との段差が傾斜面部分１１で解消されており、車両などは車道２と歩道１との間を円滑に乗り降りできる。そのうえで、請求項３記載の作用効果に加えて、ブロック蓋５とグレーチング蓋Ａとの間においては、支持体２６の上面板２８ｂがブロック蓋５の第１上面部分９と、傾斜姿勢にある上部グレーチング１４の上面がブロック蓋５の傾斜面部分１１と、グレーチング本体１３の上面がブロック蓋５の第２上面部分部分１０とそれぞれ面一状になるよう形成されているので、ブロック蓋５とグレーチング蓋Ａとの間にも段差が生じることなく、これらの間も車両などが円滑に通過することができる。
【００１８】
請求項５記載の本発明によれば、請求項３または４記載の本発明の作用効果に加えて、支持体２６の立ち上がり部の外面２６ａがグレーチング本体１３の歩道１側の一端面１３ａに対して略面一状に位置しているので、上部グレーチング１４と歩道１との間に大きな隙間が発生することを防止でき、請求項１記載の発明と同様に車両等の通過時のガタつきやハイヒールの落ち込みなどをよく防止できる。
【００１９】
請求項６記載の本発明によれば、請求項３または４記載の本発明の作用効果に加えて、上部グレーチング１４の車道２側の他端面１４ｂとグレーチング本体１３の上面との間に傾斜板２９が架け渡されているので、グレーチング本体１３と上部グレーチング１４との間の段差は傾斜板２９で解消でき、上部グレーチング１４の高さ寸法が大きい場合でも、車両等の乗り降りがスムーズに行える。
【００２０】
請求項７記載の本発明によれば、請求項３または４記載の本発明の作用効果に加えて、前後方向の両端に溶接した支持板３０・３０により、グレーチング本体１３上に上部グレーチング１４を支持体２６と相まってガッチリと固定でき、グレーチング本体１３から上部グレーチング１４が外れるのを確実に防止できる。支持板３０・３０が、グレーチング本体１３と上部グレーチング１４との間に三角形状の空間を覆い隠すようになっていれば、外観形態上においても見栄えの良いものとなる。
【００２１】
【発明の実施の形態】
（第１実施例）図１ないし図４は本発明の第１実施例を示す。図１において、歩道１よりも低位にある車道２側にＵ字状の側溝３を有し、この側溝３には、これの開口上面を塞ぐコンクリート製のブロック蓋５が敷設されている。そして側溝３の随所には、図２に示すごとく路面の雨水を側溝３に排水するために、ブロック蓋５・５間に側溝３の開口上面を塞ぐ本発明のグレーチング蓋Ａが敷設される。
【００２２】
側溝３の開口上面部の左右には、蓋受け段部６・６を段落ち状に設けてあり、側溝３の開口上面に落とし込んだブロック蓋５は、下面の溝幅方向の左右両端部が蓋受け段部６・６に受け止め支持される。蓋受け段部６・６はＬ字形の受枠で構成することができ、その場合の受枠はこれの外面に設けたアンカーを介してコンクリート製の側溝３に一体化しておくことができる。
【００２３】
図１（ａ）および図２においてブロック蓋５の上面は、溝幅方向の一端側が歩道１の上面と略面一状の平坦面に形成された第１上面部分９と、溝幅方向の他端側が車道２の上面とほぼ面一状の平坦面に形成された第２上面部分１０と、第１上面部分９と第２上面部分１０との境界において第１上面部分９から第２上面部分１０に向けて下り傾斜する傾斜面部分１１とからなる。第１上面部分９と第２上面部分１０との境界（傾斜面部分１１の存在部位）は、ブロック蓋５の溝幅方向の中央部位に近い中間に位置する。なお、実際には多くの場合、側溝３の開口上面に臨む歩道１の端に縁石１２が設けられている。従って、第１上面部分９は歩道１側の縁石１２の上面と略面一状に形成されることになる。
【００２４】
グレーチング蓋Ａは、図１（ｂ）に示すごとく、鋼製のグレーチング本体１３と、これの上面に前後長手方向にわたって溶接固定される鋼製の上部グレーチング１４とからなる。グレーチング本体１３は、先の側溝３にこれの上方から落とし込まれて下面の溝幅方向の左右両端部が前記蓋受け段部６・６に受け止め支持される。但し、グレーチング本体１３は下面の左右両端に溶接固定した中空の四角形枠１５・１５を介して蓋受け段部６・６に載置されており、この状態においてグレーチング本体１３の右側上面部分が、車道１の上面と実質的に面一状に敷設される。ここでは、上部グレーチング１４の溝幅寸法がグレーチング本体１３のそれよりも小さく、ほぼ半分の寸法に設定されていることが注目されるべきである。
【００２５】
グレーチング本体１３は、図３および図４に示すごとく、通常の形態であって、左右の溝幅方向に延びて前後方向に一定の間隔を置いて並列配置された多数のメインバー１６と、これらのメインバー１６の上端側に圧着溶接されてこれと直交する前後方向に延びる複数のツイストバーによるクロスバー１７と、各メインバー１６の溝幅方向の左右端にそれぞれ溶接された一対のサイドプレート１９とからなる。上部グレーチング１４も、グレーチング本体１３と同様に多数のメインバー２０、クロスバー２１およびサイドプレート２２からなる。グレーチング本体１３および上部グレーチング１４において、それぞれの各メインバー１６・２０の上面には、滑り止め用の凹凸２３・２４が多数形成されている。
【００２６】
グレーチング本体１３に対して上部グレーチング１４は溝幅方向の一側方（歩道１側の左側方）に片寄せた状態に配置して溶接する。かくして、図３に示すごとく上部グレーチング１４の歩道１側となるべき溝幅方向の一端面（図では左端面）１４ａ、すなわち左側のサイドプレート２２の外面は、グレーチング本体１３の同じく歩道１側となるべき溝幅方向の一端面（左端面）１３ａ、すなわち左側のサイドプレート１９の外面と上下の位置関係において略面一状に揃うよう配置する。これにより、上部グレーチング１４の車道２側となるべき溝幅方向の他端面１４ｂ、すなわち右側のサイドプレート２２の外面が、グレーチング本体１３の溝幅方向の中央近くの中間に位置している。水平状に形成された上部グレーチング１４の上面は、歩道１の上面と略面一状になる。
【００２７】
かくして、上部グレーチング１４の他端面１４ｂの上端部とグレーチング本体１３の上面との間には、グレーチング本体１３に向かって下り傾斜する鋼板製の傾斜板２５が架け渡された状態で前後方向にわたって溶接固定されている。
【００２８】
しかるときは、側溝３に先のブロック蓋５およびグレーチング蓋Ａをそれぞれ敷設した状態において、前後方向の位置関係においてみたとき、上部グレーチング１４の上面がブロック蓋５の第１上面部分９と、グレーチング本体１３の上部グレーチング１４で覆われていない車道２側の右側上面部分がブロック蓋５の第２上面部分１０と、傾斜板２５の上面がブロック蓋５の傾斜面部分１１とそれぞれ略面一状になり、ブロック蓋５とグレーチング蓋Ａとの間の段差も同時に解消されたものとなる。
【００２９】
いま、車両が図において右側の車道２から左側の歩道１に乗り上がろうとするとき、ブロック蓋５の敷設箇所では、車両が車道２と略同一高さにある第２上面部分１０、傾斜面部分１１、ついで第１上面部分９へと乗り上がって歩道１に到る。また、グレーチング蓋Ａの敷設箇所では、車両が車道２とほぼ同一高さにあるグレーチング本体１３の車道２側の右側上面から、傾斜板２５を介して歩道１とほぼ同一高さにある上部グレーチング１４の上面へと乗り上がり、次いで歩道１に到る。従って、歩道１と車道２との間に段差があっても、車両はブロック蓋５およびグレーチング蓋Ａの上面を経て車道２から歩道１へ容易に突っ掛かることなく乗り上る。歩道１から車道２に降りる場合も同様である。グレーチング本体１３および上部グレーチング１４を構成するメインバー１６・２０には、滑り止め用の凹凸２３・２４が設けてあるので、車両や人などがこれらの上面で滑ることもない。
【００３０】
同時に、ブロック蓋５上の車両が、随所に位置するグレーチング蓋Ａを跨いで走行するときにも、両者５・Ａ間に段差がないので、これまた支障なく通行できることになる。
【００３１】
（第２実施例）図５ないし図８は本発明の第２実施例を示す。ここでのコンクリート製ブロック蓋５の上面は、溝幅方向の一端側（図上左端側）が歩道１の上面と略面一状の平坦面に形成された第１上面部分９と、溝幅方向の他端側が車道２の上面とほぼ面一状の平坦面に形成された第２上面部分１０と、第１上面部分９と第２上面部分１０とをつなぎ第２上面部分１０に向けて緩かに下り傾斜する傾斜面部分１１とからなる。但し、ここで第１上面部分９は溝幅方向の寸法が小さく、傾斜面部分１１の溝幅方向の寸法が大きく、第２上面部分１０につながる傾斜面部分１１の傾斜下端がブロック蓋５の溝幅方向の中央部位に近い中間に位置している。側溝３の形状を含むその他の構成は、第１実施例と実質的に同一であるから、同一符号を付して説明を省略する。
【００３２】
グレーチング本体１３および上部グレーチング１４は、第１実施例のそれらと実質的に同様の構成になっている。但し、上部グレーチング１４は、これのメインバー２０が前後方向に延びていて左右の溝幅方向に一定の間隔を置いて並列配置されており、これに伴ってクロスバー２１が左右の溝幅方向に延びる形態になっている。グレーチング本体１３および上部グレーチング１４を構成する各メインバー１６・２０の上面には、、それぞれ滑り止め用の凹凸２３・２４が形成されている。その他の具体的な形態は、第１実施例と実質的に同一であるから、同一符号を付して説明を省略する。
【００３３】
この第２実施例では、グレーチング本体１３に対して上部グレーチング１４を歩道１側となるべき溝幅方向の一側方に片寄せた状態に配置して溶接するが、その際にグレーチング本体１３の水平上面に対して上部グレーチング１４が車道２側に向かって緩やかに下り傾斜するよう配置される点に特徴を有する。
【００３４】
すなわち、グレーチング本体１３の歩道１側となるべき一端側（左端側）に、上部グレーチング１４の歩道１側となるべき溝幅方向の一端側が、鋼製の支持体２６を介して持ち上げられた状態で溶接固定されており、上部グレーチング１４の車道２側となるべき溝幅方向の他端側（右端側）が、グレーチング本体１３の溝幅方向の中央に近い中間に位置する状態で溶接固定されている。
【００３５】
支持体２６は、図７および図８に示すごとく、それぞれグレーチング本体１３および上部グレーチング１４の前後方向にわたって存在する内側の第１支持部材２７と外側の第２支持部材２８とからなる。第１支持部材２７は、起立部２７ａの上下に受け部２７ｂ・２７ｃが折り曲げ形成された鋼板製であって、下側の受け部２７ｃがグレーチング本体１３の上面に溶接されているとともに、上側の受け部２７ｂが上部グレーチング１４の傾斜上端部の下面に溶接されており、この第１支持部材２７でグレーチング本体１３上に上部グレーチング１４の一端側が持ち上げ支持されている。
【００３６】
第２支持部材２８は、垂直状の起立部２８ａの上端に水平状の上面板２８ｂが車道２側に折り曲げ形成された鋼板製であって、起立部２８ａの下端がグレーチング本体１３の溝幅方向の歩道１側となるサイドプレート１９上に溶接されており、上面板２８ｂの連出端が上部グレーチング１４の歩道１側となるべき溝幅方向の一端面１４ａ、すなわち左端のメインバー２０の外面の上端に突き合わせ溶接されている。この第２支持部材２８は、歩道１とこれに対向する上部グレーチング１４との間の隙間を埋めている。そのために、支持体２６の立ち上がり部の外面２６ａ、すなわち第２支持部材２８の起立部２８ａの外面が、グレーチング本体１３の溝幅方向の一端面１３ａ、すなわち左側のサイドプレート１９の外面と上下の位置関係においてほぼ面一状に揃うよう配置されている。
【００３７】
上部グレーチング１４の車道２側となるべき溝幅方向の他端面１４ｂ、すなわち右端のメインバー２０の外面の上端と、グレーチング本体１３の溝幅方向中央部位の上面との間には、車道２側に向かって下り傾斜する鋼板製の傾斜板２９が両者１３・１４の前後方向にわたって架け渡された状態で溶接固定されている。
【００３８】
更にグレーチング本体１３、上部グレーチング１４および支持体２６（第１支持部材２７および第２支持部材２８）の前後方向の両端には、図８に示すごとく鋼板製の支持板３０・３０がそれぞれ一体に溶接されている。各支持板３０は正面視で左右横長の直角三角形状を呈しており、これにてグレーチング蓋Ａの前後に開口する三角形状の空間を塞いで外観形態の体裁の向上を図るとともに、グレーチング本体１３に対する上部グレーチング１４および支持体２６の溶接強度を確保している。
【００３９】
第２実施例によれば、例えば車両が車道２側から歩道１に乗り上がろうとするとき、ブロック蓋５の敷設箇所では、車両が車道２と略同一高さにある第２上面部分１０、傾斜面部分１１、ついで第１上面部分９へと乗り上がって歩道１に到る。また、グレーチング蓋Ａの敷設箇所では、グレーチング本体１３の上面の右半分に乗ったのち、傾斜板２９を介して突っ掛かることなく上部グレーチング１４に乗り上がり、そのまま支持体２６の上面板２８ｂを跨いで歩道１上に到る。歩道１側から車道２に降りる場合も同様であって、段差のある車道２と歩道１との間を車両はガタつくことなく円滑に乗り降りできることになる。同時に、ブロック蓋５上の車両が、所々に位置するグレーチング蓋Ａを跨いで走行するときにも、両者５・Ａ間に段差がないので、これまた支障なく通行できることになる。
【００４０】
（別実施例）第２実施例において、ブロック蓋５の第１上面部分９および支持体２６の第２支持部材２８の上面板２８ｂは、車道２側に向かって下り傾斜していてもよい。支持体２６は第１支持部材２７と第２支持部材２８とに分かれておらず、ひとつの角枠状に形成されていてもよい。第２実施例の支持体２６は、先の支持板３０が存在するときなどは、第１支持部材２７が省略されていてもよい。
【００４１】
いずれの実施例においても、グレーチング本体１３上に上部グレーチング１４をスペーサを介して一体に溶接する形態を採れば、歩道１と車道２との段差の大小の違いに対し、グレーチング本体１３および特に上部グレーチング１４の仕様を共通化しながら、スペーサの高さ寸法を変えるだけで対応できることになる。歩道１側に縁石１２が無くてもよい。ブロック蓋５において、これの第１上面部分９に縁石１２が一体に形成されていてもよい。
【図面の簡単な説明】
【図１】第１実施例の縦断正面図
【図２】第１実施例の斜視図
【図３】第１実施例のグレーチング蓋の縦断正面図
【図４】第１実施例の平面図
【図５】第２実施例の斜視図
【図６】第２実施例の縦断正面図
【図７】第２実施例のグレーチング蓋の縦断正面図
【図８】第２実施例のグレーチング蓋の斜視図
【符号の説明】
１歩道
２車道
３側溝
５ブロック蓋
６蓋受け段部
１３グレーチング本体
１３ａグレーチング本体の一端面
１４上部グレーチング
１４ａ上部グレーチングの一端面
１４ｂ上部グレーチングの他端面
２０上部グレーチングのメインバー
２３グレーチング本体の凹凸
２４上部グレーチングの凹凸
２５傾斜板
２６支持体[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a grating lid laid in a gutter to eliminate a step between a roadway and a sidewalk.
[0002]
[Prior art]
In general, the sidewalk is higher than the roadway and has steps. This level difference becomes an obstacle for vehicles that get on and off between the roadway and the sidewalk. Therefore, the concrete block lid laid in the side groove at the relevant location may have an upper surface shape that absorbs the step. In this case, the upper surface of the block lid is formed in a stepped shape in which the sidewalk side in the groove width direction is substantially flush with the curb and is inclined downward toward the roadway side.
[0003]
The problem is that when laying a block lid of the above shape in the side groove, steel grating lids are laid in places between the block lids in order to ensure drainage performance. Since a normal grating lid is formed at the same height in the groove width direction, the step between the roadway and the sidewalk cannot be eliminated at the location where the grating lid is laid, and the corresponding grating lid and the adjacent block lid This is because a step corresponding to the shape of the upper surface of the block lid is also generated.
[0004]
In order to eliminate such a step obstacle, the present inventor prepared a kind of plate made of a steel plate groove cover, plastic, or the like as shown in Japanese Utility Model Publication No. 61-3923, and a grating cover laid on the side groove. This kind of plate was considered to be placed on the upper surface of the road as a bridge between the roadway and the sidewalk.
[0005]
[Problems to be solved by the invention]
However, since the upper surface of the grating lid is originally slippery and the plate is relatively light, the plate easily moves from the side groove due to an impact when passing through a vehicle or the like. Furthermore, since the plate is substantially flat and has insufficient strength, the plate may be deformed by the weight of a vehicle or the like. There is also a problem in that the plate impedes drainage performance.
[0006]
An object of the present invention is to obtain a grating cover for a side groove that allows a vehicle or the like to easily get on and off even if there is a step between the roadway and the sidewalk. An object of the present invention is a side groove grating in which a side groove provided with a concrete block lid is connected between the block lids in a continuous manner without any step between the block lids, and the original drainage is ensured. To get a lid. An object of the present invention is to obtain a grating cover for a side groove that is not easily removed due to an impact when passing through a vehicle or the like and is difficult to deform due to the weight of the vehicle or the like. An object of the present invention is to obtain a grating cover for a side groove that is difficult for a person or a vehicle to slip.
[0007]
[Means for Solving the Problems]
As shown in FIGS. 1 to 4, the grating cover for a side groove according to the first aspect of the present invention includes a steel grating main body 13 that closes the opening upper surface of the side groove 3 of the roadway 2 that is lower than the sidewalk 1, and a grating. The steel upper grating 14 is welded to the upper surface of the main body 13. Lid receiving step portions 6 and 6 are provided on the left and right sides of the opening portion of the side groove 3 in the groove width direction, and both left and right end portions of the lower surface of the grating body 13 in the groove width direction receive and support the lid receiving step portions 6 and 6. In this state, the upper surface of the grating main body 13 is set to be substantially the same height as the roadway 2. The groove width direction dimension of the upper grating 14 is set smaller than that of the grating main body 13, and the upper grating 14 is dimensioned to a height at which the upper surface thereof is substantially flush with the sidewalk 1. . The upper grating 14 is arranged so as to be shifted to one end side in the groove width direction of the grating main body 13, so that the upper grating 14 has a groove width direction of the upper grating 14 on the one end surface 13 a on the side of the sidewalk 1 in the groove width direction. The one end surface 14a on the side of the sidewalk 1 is positioned substantially flush with the other end surface 14b on the side of the roadway 2 in the groove width direction of the upper grating 14 in the middle of the groove width direction of the grating body 13. positioned. Thus, in the state where the inclined plate 25 inclined downward toward the grating main body 13 is stretched between the upper end of the other end surface 14b of the upper grating 14 in the groove width direction and the upper surface of the grating main body 13 in the front-rear direction. Welded.
[0008]
As shown in FIG. 1 and FIG. 4, the present invention according to claim 2 has a concrete block lid 5 that closes the opening upper surface of the side groove 3 of the roadway 2 that is lower than the sidewalk 1. The left and right ends of the lower surface in the groove width direction are received and supported by lid receiving steps 6 and 6 provided on the left and right of the opening upper surface of the side groove 3 in the groove width direction, and the upper surface of the block lid 5 is supported in the groove width direction. The first upper surface portion 9 is formed on a flat surface substantially flush with the upper surface of the sidewalk 1, and the other end side in the groove width direction is formed on a flat surface substantially flush with the upper surface of the roadway 2. 2 an upper surface portion 10 and an inclined surface portion 11 inclined downward from the first upper surface portion 9 toward the second upper surface portion 10 at the boundary between the first upper surface portion 9 and the second upper surface portion 10, and adjacent block lids. For the side groove grating lid, which is placed between 5 and 5 and closes the upper surface of the side groove 3 opening. That. The lateral groove grating lid A is welded to a steel grating main body 13 whose left and right ends in the groove width direction of the lower surface are received and supported by the lid receiving step portions 6 and 6 of the side groove 3 and the upper surface of the grating main body 13. It consists of an upper grating 14 made of steel. The dimension of the upper grating 14 in the groove width direction is set to be smaller than that of the grating main body 13, and the upper grating 14 is arranged at one end side in the groove width direction of the grating main body 13 so that the grating is arranged. On one end surface 13a on the side wall 1 side in the groove width direction of the main body 13, one end surface 14a on the side wall 1 side in the groove width direction on the upper grating 14 is positioned substantially flush with the upper grating 14. The other end surface 14 b on the side of the roadway 2 in the groove width direction is located in the middle of the grating body 13 in the groove width direction. Welding is performed in a state where an inclined plate 25 inclined downward toward the grating main body 13 is stretched between the upper end portion of the other end surface 14b in the groove width direction of the upper grating 14 and the upper surface of the grating main body 13 in the front-rear direction. Has been. In a state where the grating main body 13 is received and supported by the lid receiving steps 6 and 6 of the side groove 3, the upper surface of the upper grating 14 is the first upper surface portion 9 of the block lid 5, and the upper surface of the grating main body 13 is the second surface of the block lid 5. The upper surface portion 10 and the upper surface of the inclined plate 25 are formed so as to be substantially flush with the inclined surface portion 11 of the block lid 5, respectively. This means that the upper surface of the upper grating 14 is formed substantially the same as the upper surface of the sidewalk 1 and the upper surface of the grating main body 13 is formed substantially the same as the upper surface of the roadway 2.
[0009]
As shown in FIGS. 5 to 8, the grating lid according to the third aspect of the present invention includes a steel grating main body 13 that closes the opening upper surface of the side groove 3 of the roadway 2 that is lower than the sidewalk 1, and the grating main body 13. The upper grating 14 made of steel is welded to the upper surface of the steel. Lid receiving step portions 6 and 6 are provided on the left and right sides of the opening portion of the side groove 3 in the groove width direction, and both left and right end portions of the lower surface of the grating body 13 in the groove width direction receive and support the lid receiving step portions 6 and 6. In this state, the upper surface of the grating main body 13 is set to be substantially the same height as the roadway 2. The dimension of the upper grating 14 in the groove width direction is set smaller than that of the grating main body 13. Since the upper grating 14 is arranged so as to be shifted to one end side in the groove width direction of the grating body 13, the side wall in the groove width direction of the upper grating 14 is disposed on one end side which is the side wall 1 side in the groove width direction of the grating body 13. A steel support 26 that lifts and supports one end, which is the one side, so that the upper grating 14 is inclined downward toward the roadway 2 side is welded to the grating main body 13 and the upper grating 14. Thereby, while the upper surface board 28b of the support body 26 is set to the substantially same height as the sidewalk 1, the inclination lower end part of the upper grating 14 is located in the middle of the groove width direction of the grating main body 13, Non-slip irregularities 24 are formed on the upper surface of the main bar 20 constituting the upper grating 14.
[0010]
As shown in FIGS. 5 to 8, the present invention according to claim 4 has a concrete block lid 5 that closes the upper surface of the opening of the side groove 3 of the roadway 2 that is lower than the sidewalk 1, Both left and right end portions in the groove width direction of the lower surface are received and supported by lid receiving steps 6 and 6 provided on the left and right of the opening upper surface portion of the side groove 3 in the groove width direction, and the upper surface of the block lid 5 is in the groove width direction. The first upper surface portion 9 is formed on a flat surface substantially flush with the upper surface of the sidewalk 1, and the other end side in the groove width direction is formed on a flat surface substantially flush with the upper surface of the roadway 2. 2 comprising an upper surface portion 10 and an inclined surface portion 11 inclined downward from the first upper surface portion 9 toward the second upper surface portion 10, and is disposed between adjacent block lids 5 and 5 to block the upper surface of the opening of the side groove 3. Applicable to grating lids for side grooves. The lateral groove grating lid A is welded to a steel grating main body 13 whose left and right ends in the groove width direction of the lower surface are received and supported by the lid receiving step portions 6 and 6 of the side groove 3 and the upper surface of the grating main body 13. It consists of an upper grating 14 made of steel. The dimension of the upper grating 14 in the groove width direction is set smaller than that of the grating main body 13. The upper grating 14 is arranged so as to be shifted to one end side in the groove width direction of the grating main body 13, so that the side wall 1 in the groove width direction of the upper grating 14 is disposed on one end side that is the side of the side wall 1 in the groove width direction of the grating main body 13. A steel support 26 that supports the upper grating 14 so that the upper grating 14 is inclined downward toward the roadway 2 is welded to the grating main body 13 and the upper grating 14. Thus, in a state where the grating main body 13 is received and supported by the lid receiving steps 6 and 6 of the side groove 3, the upper surface plate 28b of the support body 26 is the first upper surface portion 9 of the block lid 5, and the upper surface of the upper grating 14 is the block lid. 5 and the upper surface of the grating main body 13 are formed so as to be substantially flush with the second upper surface portion 10 of the block lid 5.
[0011]
According to the fifth aspect of the present invention, in the lateral groove grating according to the third or fourth aspect, the outer surface 26a of the rising portion of the support 26 is opposite to the one end surface 13a on the sidewalk 1 side of the grating body 13 in the groove width direction. It is positioned substantially flush.
[0012]
According to a sixth aspect of the present invention, in the side groove grating according to the third or fourth aspect, the upper grating 14 is disposed between the upper end portion of the other end surface 14b on the roadway 2 side in the groove width direction and the upper surface of the grating main body 13. The inclined plate 29 inclined downward toward the grating main body 13 is welded in a state of being stretched over the front-rear direction.
[0013]
According to the seventh aspect of the present invention, in the side groove grating according to the third or fourth aspect, the support body 26 extends in the front-rear direction of the grating main body 13 and the upper grating 14, and the grating main body 13, the upper grating 14 and the support body. Steel support plates 30 and 30 are welded to both ends of the front and rear direction of 26.
[0014]
[Effects of the invention]
According to the first aspect of the present invention, the upper grating 14 has a height corresponding to the step size between the sidewalk 1 and the roadway 2. Accordingly, there is substantially no step between the sidewalk 1 and the upper surface of the upper grating 14. However, a step is formed between the upper surface of the grating main body 13 and the upper surface of the upper grating 14 on the roadway 2 side, and the step is eliminated by the inclined plate 25. As a result, for example, a vehicle or a bicycle on the side of the roadway 2 rides on the upper surface of the upper grating 14 from the upper surface of the grating main body 13 via the inclined plate 25 and reaches the sidewalk 1 as it is. When getting off the sidewalk 1 to the roadway 2, the reverse procedure is applied. Thus, even if there is a step between the roadway 2 and the sidewalk 1, the vehicle can get on and off without resistance. Since one end surface 14a in the groove width direction of the upper grating 14 is formed substantially flush with the one end surface 13a in the groove width direction of the grating body 13, a large gap is formed between the sidewalk 1 and the upper grating 14. Can be prevented, rattling at the time of passing of a vehicle and the like, and noise generation based thereon can be prevented, and the high heels of women can be well prevented from falling. The upper grating 14 is not made of a flat plate as a whole, but is literally a grating. Therefore, the structural strength is sufficiently secured, and the upper grating 14 is not deformed and damaged by the weight of a vehicle or the like. In addition, since only the upper grating 14 is integrally provided on the grating main body 13, it is lightweight and easy to handle as a whole, and good drainage is ensured. Further, since the grating main body 13 is shared and only the height (thickness) dimension of the upper grating 14 needs to be changed in accordance with the level difference, the manufacturing cost can be reduced. At this time, if the step between the roadway 2 and the sidewalk 1 is large, the height of the upper grating 14 increases accordingly, and therefore the inclined plate 25 that absorbs the step between the grating main body 13 and the upper grating 14 is provided. Existence becomes meaningful.
[0015]
According to the second aspect of the present invention, in the side groove 3 on which the concrete block lid 5 is laid, the grating lid A according to the first aspect is disposed between the block lids 5 and 5 at various positions in the side groove 3. Therefore, rain water on the road surface can be discharged well into the side groove 3 at the location where the grating lid A is present. In the state where the block lid 5 is dropped into the lid receiving steps 6 and 6 of the side groove 3 and received and supported, a first upper surface portion 9 in which the upper surface of the block lid 5 is substantially flush with the upper surface of the sidewalk 1; The second upper surface portion 10 that is substantially flush with the upper surface of the roadway 2 and the inclined surface portion 11 that connects the first upper surface portion 9 and the second upper surface portion 10 are used. Therefore, the step between the sidewalk 1 and the roadway 2 is also eliminated by the inclined surface portion 11 on the upper surface of the block lid 5, and the vehicle can smoothly get on and off between the roadway 2 and the sidewalk 1. In addition, in addition to the function and effect of the first aspect, between the block lid 5 and the grating lid A, the upper surface of the upper grating 14 is the first upper surface portion 9 of the block lid 5 and the upper surface of the grating body 13 is the block. Since the second upper surface portion portion 10 of the lid 5 and the upper surface of the inclined plate 25 are formed so as to be flush with the inclined surface portion 11 of the block lid 5, respectively, between the block lid 5 and the grating lid A. There is no step difference, and the vehicle can pass smoothly between these.
[0016]
According to the third aspect of the present invention, the upper grating 14 is welded to the upper surface of the grating main body 13 via the support 26 so that the upper grating 14 is integrated in an inclined shape in which the sidewalk 1 side is high and the roadway 2 side is low. It is. Therefore, for example, a vehicle on the side of the roadway 2 smoothly rides on the sidewalk 1 through the inclined upper surface of the grating main body 13 and the upper grating 14 and the upper surface plate 28b of the support 26, and similarly descends from the sidewalk 1 to the roadway 2. be able to. As a result, as with the first aspect, even if there is a step between the roadway 2 and the sidewalk 1, the vehicle can get on and off smoothly. Overall, it is lightweight and easy to handle, and it can ensure good drainage. Since the top surface of the main bar 20 of the upper grating 14 is provided with unevenness 24 for preventing slipping, even if the upper surface of the upper grating 14 is inclined, a person or the like does not slip when stepping on the upper surface. is there. Further, the difference in level difference between the roadway 2 and the sidewalk 1 makes it possible to share the grating main body 13 and the upper grating 14 only by changing the height of the support 26, thereby reducing the overall production cost. It is advantageous.
[0017]
According to the fourth aspect of the present invention, in the side groove 3 in which the concrete block lid 5 is laid, the grating lid A according to the third aspect is disposed between the block lids 5 and 5 at various positions in the side groove 3. Therefore, rainwater on the road surface can be drained to the side groove 3 at the location where the grating lid A is present. In the state where the block lid 5 is dropped into the lid receiving steps 6 and 6 of the side groove 3 and received and supported, a first upper surface portion 9 in which the upper surface of the block lid 5 is substantially flush with the upper surface of the sidewalk 1; The second upper surface portion 10 that is substantially flush with the upper surface of the roadway 2 and the inclined surface portion 11 that connects the first upper surface portion 9 and the second upper surface portion 10 are used. Therefore, the step between the sidewalk 1 and the roadway 2 is also eliminated by the inclined surface portion 11 on the upper surface of the block lid 5, and the vehicle can smoothly get on and off between the roadway 2 and the sidewalk 1. In addition, in addition to the function and effect of the third aspect, between the block lid 5 and the grating lid A, the upper surface plate 28b of the support body 26 and the upper surface portion 9 of the block lid 5 are in an inclined posture. Since the upper surface of the grating 14 is formed to be flush with the inclined surface portion 11 of the block lid 5 and the upper surface of the grating body 13 is flush with the second upper surface portion portion 10 of the block lid 5, the block lid 5 and the grating are formed. There is no step between the lid A and the vehicle or the like can pass smoothly between these.
[0018]
According to the fifth aspect of the present invention, in addition to the function and effect of the present invention according to the third or fourth aspect, the outer surface 26a of the rising portion of the support 26 is in contrast to the one end surface 13a of the grating body 13 on the sidewalk 1 side. Therefore, it is possible to prevent a large gap from being generated between the upper grating 14 and the sidewalk 1. High heels can be well prevented from falling.
[0019]
According to the sixth aspect of the present invention, in addition to the function and effect of the present invention according to the third or fourth aspect, the inclined plate is provided between the other end surface 14b on the roadway 2 side of the upper grating 14 and the upper surface of the grating main body 13. 29 is bridged, the step between the grating main body 13 and the upper grating 14 can be eliminated by the inclined plate 29, and even if the height dimension of the upper grating 14 is large, it is possible to smoothly get on and off the vehicle or the like.
[0020]
According to the seventh aspect of the present invention, in addition to the function and effect of the present invention according to the third or fourth aspect, the upper grating 14 is mounted on the grating main body 13 by the support plates 30 and 30 welded to both ends in the front-rear direction. Coupled with the support 26, it can be firmly fixed, and the upper grating 14 can be reliably prevented from being detached from the grating main body 13. If the support plates 30 and 30 are configured to cover the triangular space between the grating main body 13 and the upper grating 14, the appearance of the support plate 30 and 30 is good.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
First Embodiment FIGS. 1 to 4 show a first embodiment of the present invention. In FIG. 1, a U-shaped side groove 3 is provided on the side of the roadway 2 that is lower than the sidewalk 1, and a concrete block lid 5 is installed in the side groove 3 to close the upper surface of the opening. Further, as shown in FIG. 2, a grating lid A according to the present invention is installed between the block lids 5 and 5 to cover the opening upper surface of the side groove 3 everywhere in the side groove 3 in order to drain rainwater on the road surface into the side groove 3.
[0022]
Lid receiving step portions 6 and 6 are provided stepwise on the left and right of the opening upper surface portion of the side groove 3, and the block lid 5 dropped on the opening upper surface of the side groove 3 has both left and right end portions in the groove width direction on the lower surface. It is received and supported by the lid receiving steps 6 and 6. The lid receiving steps 6 and 6 can be formed of L-shaped receiving frames, and the receiving frames in that case can be integrated with the concrete side grooves 3 via anchors provided on the outer surfaces thereof.
[0023]
1A and 2, the upper surface of the block lid 5 includes a first upper surface portion 9 in which one end side in the groove width direction is formed on a flat surface substantially flush with the upper surface of the sidewalk 1, and the other in the groove width direction. A second upper surface portion 10 whose end side is formed on a flat surface substantially flush with the upper surface of the roadway 2 and the first upper surface portion 9 to the second upper surface portion at the boundary between the first upper surface portion 9 and the second upper surface portion 10. And an inclined surface portion 11 that inclines downward toward 10. The boundary between the first upper surface portion 9 and the second upper surface portion 10 (the portion where the inclined surface portion 11 is present) is located in the middle of the block lid 5 near the central portion in the groove width direction. Actually, in many cases, the curb 12 is provided at the end of the sidewalk 1 facing the upper surface of the opening of the side groove 3. Accordingly, the first upper surface portion 9 is formed substantially flush with the upper surface of the curb 12 on the sidewalk 1 side.
[0024]
As shown in FIG. 1B, the grating lid A includes a steel grating main body 13 and a steel upper grating 14 welded and fixed to the upper surface of the grating main body 13 in the longitudinal direction. The grating body 13 is dropped into the side groove 3 from above, and the left and right ends of the lower surface in the groove width direction are received and supported by the lid receiving steps 6 and 6. However, the grating main body 13 is placed on the lid receiving stepped portions 6 and 6 via hollow rectangular frames 15 and 15 welded and fixed to the left and right ends of the lower surface. In this state, the right upper surface portion of the grating main body 13 is It is laid substantially flush with the upper surface of the roadway 1. Here, it should be noted that the groove width dimension of the upper grating 14 is smaller than that of the grating body 13 and is set to approximately half the dimension.
[0025]
As shown in FIGS. 3 and 4, the grating main body 13 has a normal form, and a large number of main bars 16 that extend in the left and right groove width directions and are arranged in parallel at a predetermined interval in the front-rear direction. A cross bar 17 made up of a plurality of twist bars extending in the longitudinal direction orthogonal to the upper end side of the main bar 16 and welded to the left and right ends of each main bar 16 in the groove width direction. 19 Similar to the grating main body 13, the upper grating 14 also includes a number of main bars 20, cross bars 21, and side plates 22. In the grating main body 13 and the upper grating 14, many anti-slip irregularities 23 and 24 are formed on the upper surfaces of the main bars 16 and 20.
[0026]
The upper grating 14 is arranged and welded to the grating main body 13 so as to be shifted to one side of the groove width direction (left side of the sidewalk 1). Thus, as shown in FIG. 3, one end face (left end face in the figure) 14 a in the groove width direction that should be the sidewalk 1 side of the upper grating 14, that is, the outer surface of the left side plate 22 is the same as the sidewalk 1 side of the grating body 13. It is arranged so as to be substantially flush with the one end surface (left end surface) 13a in the groove width direction, that is, the outer surface of the left side plate 19 in the vertical relationship. Thereby, the other end surface 14b in the groove width direction of the upper grating 14 to be on the side of the roadway 2, that is, the outer surface of the right side plate 22 is located in the middle of the grating body 13 near the center in the groove width direction. The upper surface of the upper grating 14 formed horizontally is substantially flush with the upper surface of the sidewalk 1.
[0027]
Thus, a steel plate inclined plate 25 that is inclined downward toward the grating main body 13 is bridged between the upper end of the other end surface 14b of the upper grating 14 and the upper surface of the grating main body 13 in the front-rear direction. It is fixed.
[0028]
When appropriate, when the front block lid 5 and the grating lid A are respectively laid in the side grooves 3, the upper surface of the upper grating 14 is in contact with the first upper surface portion 9 of the block lid 5 and the grating when viewed in the positional relationship in the front-rear direction. The upper right side portion of the main body 13 that is not covered with the upper grating 14 on the roadway 2 side is substantially flush with the second upper surface portion 10 of the block lid 5 and the upper surface of the inclined plate 25 is substantially flush with the inclined surface portion 11 of the block lid 5. Thus, the step between the block lid 5 and the grating lid A is also eliminated at the same time.
[0029]
Now, when the vehicle is going to ride on the left sidewalk 1 from the right side roadway 2 in the figure, the second upper surface portion 10, the inclined surface where the vehicle is substantially at the same height as the roadway 2, at the laying place of the block lid 5. Ride on the part 11 and then the first upper surface part 9 to reach the sidewalk 1. In addition, at the location where the grating lid A is laid, the upper grating is located at the same height as the sidewalk 1 via the inclined plate 25 from the upper right side of the grating body 13 on the side of the road 2 where the vehicle is substantially level with the road 2. Ride up to the upper surface of 14 and then reach the sidewalk 1. Therefore, even if there is a step between the sidewalk 1 and the roadway 2, the vehicle rides on the sidewalk 1 from the roadway 2 through the upper surface of the block lid 5 and the grating lid A without easily striking. The same applies when getting off the sidewalk 1 to the roadway 2. Since the main bars 16 and 20 constituting the grating main body 13 and the upper grating 14 are provided with unevenness 23 and 24 for preventing slipping, vehicles and people do not slide on these upper surfaces.
[0030]
At the same time, even when the vehicle on the block lid 5 travels across the grating lid A located everywhere, there is no step between the two 5A, so that the vehicle can pass without any trouble.
[0031]
Second Embodiment FIGS. 5 to 8 show a second embodiment of the present invention. Here, the upper surface of the concrete block lid 5 includes a first upper surface portion 9 in which one end side in the groove width direction (the left end side in the figure) is formed on a flat surface substantially flush with the upper surface of the sidewalk 1, and the groove width. The second upper surface portion 10 having the other end side in the direction formed on a flat surface substantially flush with the upper surface of the roadway 2 is connected to the first upper surface portion 9 and the second upper surface portion 10 toward the second upper surface portion 10. It comprises an inclined surface portion 11 that gently slopes downward. However, here, the first upper surface portion 9 has a small size in the groove width direction, the inclined surface portion 11 has a large size in the groove width direction, and the inclined lower end of the inclined surface portion 11 connected to the second upper surface portion 10 is the block lid 5. It is located in the middle near the central part in the groove width direction. Since the other structure including the shape of the side groove 3 is substantially the same as that of the first embodiment, the same reference numerals are given and description thereof is omitted.
[0032]
The grating main body 13 and the upper grating 14 have substantially the same configuration as those of the first embodiment. However, the upper grating 14 has its main bar 20 extending in the front-rear direction and arranged in parallel at a certain interval in the left-right groove width direction, and accordingly the cross bar 21 is arranged in the left-right groove width direction. It is the form which extends to. Non-slip irregularities 23 and 24 are formed on the upper surfaces of the main bars 16 and 20 constituting the grating main body 13 and the upper grating 14, respectively. The other specific forms are substantially the same as those of the first embodiment, and thus the same reference numerals are given and the description thereof is omitted.
[0033]
In the second embodiment, the upper grating 14 is arranged and welded to one side of the groove width direction to be the sidewalk 1 side with respect to the grating main body 13. It is characterized in that the upper grating 14 is disposed so as to gently descend and incline toward the roadway 2 side with respect to the horizontal upper surface.
[0034]
That is, one end side in the groove width direction to be the sidewalk 1 side of the upper grating 14 is lifted via the steel support 26 on one end side (left end side) that should be the sidewalk 1 side of the grating body 13. The other end side (right end side) in the groove width direction that should be on the side of the roadway 2 of the upper grating 14 is welded and fixed in a state close to the center of the grating body 13 in the groove width direction. ing.
[0035]
As shown in FIGS. 7 and 8, the support body 26 includes an inner first support member 27 and an outer second support member 28 that exist in the front-rear direction of the grating main body 13 and the upper grating 14, respectively. The first support member 27 is made of a steel plate in which receiving portions 27b and 27c are bent above and below the standing portion 27a. The lower receiving portion 27c is welded to the upper surface of the grating main body 13, and the upper The receiving portion 27 b is welded to the lower surface of the inclined upper end portion of the upper grating 14, and one end side of the upper grating 14 is lifted and supported on the grating main body 13 by the first support member 27.
[0036]
The second support member 28 is made of a steel plate in which a horizontal upper surface plate 28b is bent at the upper end of the vertical upright portion 28a, and the lower end of the upright portion 28a is in the groove width direction of the grating main body 13. Is welded onto the side plate 19 on the side of the sidewalk 1, and the continuous end of the top plate 28 b should be the end surface 14 a in the groove width direction that should be on the sidewalk 1 of the upper grating 14, that is, the outer surface of the main bar 20 on the left end It is butt welded to the upper end. The second support member 28 fills a gap between the sidewalk 1 and the upper grating 14 facing the sidewalk 1. For this purpose, the outer surface 26a of the rising portion of the support 26, that is, the outer surface of the rising portion 28a of the second support member 28 is located on one end surface 13a in the groove width direction of the grating body 13, that is, the outer surface of the left side plate 19 They are arranged so as to be substantially flush with each other in the positional relationship.
[0037]
Between the other end surface 14b in the groove width direction to be the side of the roadway 2 of the upper grating 14, that is, between the upper end of the outer surface of the main bar 20 at the right end and the upper surface of the central part in the groove width direction of the grating body 13, the roadway 2 side An inclined plate 29 made of a steel plate that is inclined downward is fixed by welding in a state of being spanned across the front and rear directions of both 13 and 14.
[0038]
Further, as shown in FIG. 8, steel plate support plates 30 and 30 are integrally formed at both ends of the grating main body 13, the upper grating 14 and the support body 26 (first support member 27 and second support member 28) in the front-rear direction. Welded. Each support plate 30 has a right-and-left laterally right triangular shape in front view, thereby closing the triangular space opened in front of and behind the grating lid A to improve the appearance and the grating body 13. The welding strength of the upper grating 14 and the support body 26 is secured.
[0039]
According to the second embodiment, for example, when the vehicle tries to ride on the sidewalk 1 from the side of the roadway 2, the second upper surface portion 10 in which the vehicle is substantially at the same height as the roadway 2 at the laying position of the block lid 5, It climbs to the inclined surface portion 11 and then to the first upper surface portion 9 and reaches the sidewalk 1. Further, at the location where the grating lid A is laid, after riding on the right half of the upper surface of the grating body 13, it rides on the upper grating 14 without striking through the inclined plate 29, and straddles the upper plate 28 b of the support 26 as it is. To the sidewalk 1. The same applies when getting off the sidewalk 1 from the sidewalk 1 and the vehicle can smoothly get on and off between the stepped roadway 2 and the sidewalk 1 without rattling. At the same time, even when the vehicle on the block lid 5 travels across the grating lid A located in some places, there is no step between the two 5A so that the vehicle can pass without any trouble.
[0040]
(Another Example) In the second example, the first upper surface portion 9 of the block lid 5 and the upper surface plate 28b of the second support member 28 of the support 26 may be inclined downward toward the roadway 2 side. The support 26 is not divided into the first support member 27 and the second support member 28, and may be formed in a single square frame shape. In the support body 26 of the second embodiment, the first support member 27 may be omitted when the previous support plate 30 is present.
[0041]
In any of the embodiments, if the upper grating 14 is integrally welded on the grating main body 13 via the spacer, the grating main body 13 and particularly the upper part are dealt with against the difference in level between the sidewalk 1 and the roadway 2. This can be dealt with by changing the height dimension of the spacer while making the specifications of the grating 14 common. The curb 12 may not be on the sidewalk 1 side. In the block lid 5, the curb 12 may be integrally formed on the first upper surface portion 9 thereof.
[Brief description of the drawings]
FIG. 1 is a longitudinal front view of a first embodiment.
FIG. 2 is a perspective view of the first embodiment.
FIG. 3 is a longitudinal front view of the grating lid of the first embodiment.
FIG. 4 is a plan view of the first embodiment.
FIG. 5 is a perspective view of a second embodiment.
FIG. 6 is a longitudinal front view of the second embodiment.
FIG. 7 is a longitudinal front view of the grating lid of the second embodiment.
FIG. 8 is a perspective view of a grating lid according to a second embodiment.
[Explanation of symbols]
1 sidewalk
2 roadway
3 Side groove
5 Block lid
6 Lid receiving step
13 Grating body
13a One end of the grating body
14 Upper grating
14a One end face of upper grating
14b The other end of the upper grating
20 Main bar of upper grating
23 Unevenness of the grating body
24 Unevenness of upper grating
25 Inclined plate
26 Support

Claims

It consists of a steel grating main body 13 that closes the opening upper surface of the side groove 3 of the roadway 2 that is lower than the sidewalk 1, and a steel upper grating 14 that is welded to the upper surface of the grating main body 13.
In the state where the left and right ends of the lower surface of the grating body 13 in the groove width direction are received and supported by the lid receiving steps 6 and 6 provided on the left and right in the groove width direction of the upper opening of the side groove 3, the upper surface of the grating body 13 is , Is set to be approximately the same height as roadway 2,
The dimension in the groove width direction of the upper grating 14 is set smaller than that of the grating main body 13,
The upper grating 14 is sized so that the upper surface thereof is substantially flush with the sidewalk 1,
When the upper grating 14 is arranged so as to be shifted to one end side in the groove width direction of the grating body 13, the groove width direction of the upper grating 14 is formed on the one end surface 13 a on the sidewalk 1 side in the groove width direction of the grating body 13. The one end surface 14a on the side of the sidewalk 1 is positioned substantially flush with the other end surface 14b on the side of the roadway 2 in the groove width direction of the upper grating 14 in the middle of the groove width direction of the grating body 13. Located
Between the upper end of the other end surface 14b in the groove width direction of the upper grating 14 and the upper surface of the grating main body 13, welding is performed in a state where an inclined plate 25 inclined downward toward the grating main body 13 is stretched across the front-rear direction. Grating lid for gutter characterized by having

It has a concrete block lid 5 that closes the upper surface of the opening of the side groove 3 of the roadway 2 that is lower than the sidewalk 1,
The left and right ends of the lower surface of the block lid 5 in the groove width direction are received and supported by lid receiving steps 6 and 6 provided on the left and right of the upper surface of the side groove 3 in the groove width direction.
The upper surface of the block lid 5 has a first upper surface portion 9 in which one end side in the groove width direction is formed on a flat surface substantially flush with the upper surface of the sidewalk 1, and the other end side in the groove width direction is substantially surface and the upper surface of the roadway 2. A second upper surface portion 10 formed on a flat surface, and an inclined surface inclined downward from the first upper surface portion 9 toward the second upper surface portion 10 at the boundary between the first upper surface portion 9 and the second upper surface portion 10. Consisting of part 11,
In the grating cover for the side groove, which is arranged between the adjacent block lids 5 and 5 and closes the upper surface of the opening of the side groove 3,
A steel grating main body 13 whose left and right ends in the groove width direction of the lower surface are received and supported by the lid receiving steps 6 and 6 of the side groove 3;
It consists of a steel upper grating 14 welded to the upper surface of the grating body 13;
The dimension of the upper grating 14 in the groove width direction is set to be smaller than that of the grating body 13.
When the upper grating 14 is arranged so as to be shifted to one end side in the groove width direction of the grating body 13, the groove width direction of the upper grating 14 is formed on the one end surface 13 a on the sidewalk 1 side in the groove width direction of the grating body 13. One end surface 14a on the sidewalk 1 side of the upper grating 14 is positioned substantially flush with the other end surface 14b on the side of the roadway 2 in the groove width direction of the upper grating 14 in the middle of the grating body 13 in the groove width direction. And
Between the upper end portion of the other end surface 14b in the groove width direction of the upper grating 14 and the upper surface of the grating main body 13, welding is performed in a state where an inclined plate 25 inclined downward toward the grating main body 13 is stretched across the front-rear direction. And
In a state where the grating main body 13 is received and supported by the lid receiving steps 6 and 6 of the side groove 3, the upper surface of the upper grating 14 is the first upper surface portion 9 of the block lid 5, and the upper surface of the grating main body 13 is the second surface of the block lid 5. A grating cover for side grooves, wherein the upper surface portion 10 and the upper surface of the inclined plate 25 are formed so as to be substantially flush with the inclined surface portion 11 of the block lid 5.

It consists of a steel grating main body 13 that closes the opening upper surface of the side groove 3 of the roadway 2 that is lower than the sidewalk 1, and a steel upper grating 14 that is welded to the upper surface of the grating main body 13.
In the state where the left and right ends of the lower surface of the grating body 13 in the groove width direction are received and supported by the lid receiving steps 6 and 6 provided on the left and right in the groove width direction of the upper opening of the side groove 3, the upper surface of the grating body 13 is It is set to be approximately the same height as roadway 2,
The dimension in the groove width direction of the upper grating 14 is set smaller than that of the grating main body 13,
Since the upper grating 14 is arranged so as to be shifted to one end side in the groove width direction of the grating body 13, the side wall in the groove width direction of the upper grating 14 is disposed on one end side which is the side wall 1 side in the groove width direction of the grating body 13. Steel support bodies 26 that lift and support the one end side that is the one side so that the upper grating 14 is inclined downward toward the roadway 2 side are welded to the grating main body 13 and the upper grating 14, respectively.
The upper surface plate 28b of the support 26 is set at substantially the same height as the sidewalk 1, and the inclined lower end portion of the upper grating 14 is located in the middle of the groove body 13 in the groove width direction.
A side groove grating lid characterized in that an anti-slip unevenness 24 is formed on the upper surface of the main bar 20 constituting the upper grating 14.

It has a concrete block lid 5 that closes the upper surface of the opening of the side groove 3 of the roadway 2 that is lower than the sidewalk 1,
The left and right ends of the lower surface of the block lid 5 in the groove width direction are received and supported by lid receiving steps 6 and 6 provided on the left and right of the upper surface of the side groove 3 in the groove width direction.
The upper surface of the block lid 5 has a first upper surface portion 9 formed so that one end side in the groove width direction is substantially flat with the upper surface of the sidewalk 1, and the other end side in the groove width direction is substantially surface with the upper surface of the roadway 2. A second upper surface portion 10 formed on a flat surface, and an inclined surface portion 11 inclined downward from the first upper surface portion 9 toward the second upper surface portion 10,
In the grating cover for the side groove, which is arranged between the adjacent block lids 5 and 5 and closes the upper surface of the opening of the side groove 3,
A steel grating main body 13 whose left and right ends in the groove width direction of the lower surface are received and supported by the lid receiving steps 6 and 6 of the side groove 3;
It consists of a steel upper grating 14 welded to the upper surface of the grating body 13;
The dimension of the upper grating 14 in the groove width direction is set to be smaller than that of the grating body 13.
Since the upper grating 14 is arranged so as to be shifted to one end side in the groove width direction of the grating body 13, the side wall in the groove width direction of the upper grating 14 is disposed on one end side which is the side wall 1 side in the groove width direction of the grating body 13. Steel support bodies 26 that lift and support the one end side that is the one side so that the upper grating 14 is inclined downward toward the roadway 2 side are welded to the grating main body 13 and the upper grating 14, respectively.
In a state where the grating main body 13 is received and supported by the lid receiving step portions 6 and 6 of the side groove 3, the upper surface plate 28 b of the support body 26 is the first upper surface portion 9 of the block lid 5, and the upper surface of the upper grating 14 is the block lid 5. A grating cover for a side groove, wherein the inclined surface portion 11 and the upper surface of the grating main body 13 are formed so as to be substantially flush with the second upper surface portion 10 of the block lid 5.

The grating cover for side grooves according to claim 3 or 4, wherein the outer surface 26a of the rising portion of the support body 26 is positioned substantially flush with the one end face 13a on the sidewalk 1 side in the groove width direction of the grating body 13.

Between the upper end of the other end surface 14b on the roadway 2 side in the groove width direction of the upper grating 14 and the upper surface of the grating main body 13, an inclined plate 29 inclined downward toward the grating main body 13 is bridged in the front-rear direction. The grating cover for a side groove according to claim 3 or 4, which is welded in a state.

A support 26 extends in the front-rear direction of the grating main body 13 and the upper grating 14.
The grating cover for a side groove according to claim 3 or 4, wherein steel support plates 30 and 30 are welded to both ends of the grating main body 13, the upper grating 14 and the support body 26 in the front-rear direction.