JP2005042538A - U-shaped ditch - Google Patents

U-shaped ditch Download PDF

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JP2005042538A
JP2005042538A JP2004211975A JP2004211975A JP2005042538A JP 2005042538 A JP2005042538 A JP 2005042538A JP 2004211975 A JP2004211975 A JP 2004211975A JP 2004211975 A JP2004211975 A JP 2004211975A JP 2005042538 A JP2005042538 A JP 2005042538A
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shaped groove
bridging
main body
bridging material
portions
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JP4811631B2 (en
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Toshio Kamata
俊夫 鎌田
Takae Terasawa
高栄 寺沢
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<P>PROBLEM TO BE SOLVED: To provide a U-shaped ditch made of a synthetic resin with a high rigidity having hanging and crossing members which can be installed easily. <P>SOLUTION: This U-shaped ditch 1 is a U-shaped ditch body 2 formed to a wave shape and the hanging and crossing members 7A which are erected and fixed laterally between right and left side portions 4,4 of the body 2 by continuously and alternately forming recessed stripe portions 5 and protruded stripe portions 6 extended from a wall bottom portion 3 of the body 2 to the upper portions of right and left wall side portions 4,4 continuously in the longitudinal direction of the U-shaped ditch 1. The right and left wall side portions 4,4 are so constituted as to form members 9 which receive the hanging and crossing members capable of fitting the end portions of the hanging and crossing members 7A respectively at the upper portions of the wall side portions. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、農業用及び工業用水路及び排水路、並びに一般土木用水路及び排水路に用いることができる合成樹脂製のＵ字溝に関する。   The present invention relates to a U-groove made of synthetic resin that can be used for agricultural and industrial waterways and drainage channels, and general civil engineering waterways and drainage channels.

山野の土木開発現場並びに一般道路の側溝および排水路として、従来コンクリート製のＵ字溝が用いられてきたが、近年、コンクリート製のＵ字溝に代えて合成樹脂製のＵ字溝が用いられるに至っている。この合成樹脂製のＵ字溝は、従来のコンクリート製のＵ字溝よりも軽量であるため、輸送面や施工面で取扱いが容易であるが、一方合成樹脂製のものは、コンクリート製のものと比較して一般に、剛性が低いため、特に側壁外から大きな土圧がかかった場合には、側壁が内側に折れこんで変形しやすくなるという問題があった。そこでこの問題を解決するべく、Ｕ字溝の底壁面から側壁面を波形もしくは類似の凹凸形状に成形することにより合成樹脂製Ｕ字溝の側壁外からの土圧に対する剛性の向上を達成する方法が提案され利用されていることが知られている（特開昭６１−８３７３１号公報、特開平１１−１９５６号公報等）。なおこの種の、Ｕ字溝において、その底部付近について上記の凹凸形状をあまりに大きな凹凸に設計することは、雨水や地下水等の流通を妨げ、本来の使用目的である流路としての機能を十分に果たすことはできなくなる。従って、Ｕ字溝の内壁面を平坦な面に保ちかつ凹凸形状を外側壁面にのみに付ける方法も検討されている（例えば特開平８−１５１６７７号公報等）が、剛性の格段の向上が期待できず、これは有利な手段とは必ずしもいえない。   Conventional U-grooves made of concrete have been used as side gutters and drainage channels for civil engineering development in Yamano, but in recent years, synthetic resin U-grooves have been used in place of concrete U-grooves. Has reached. This synthetic resin U-shaped groove is lighter than the conventional concrete U-shaped groove, so it is easy to handle in terms of transportation and construction, while synthetic resin is made of concrete. In general, since the rigidity is low, particularly when a large earth pressure is applied from the outside of the side wall, there is a problem that the side wall is easily folded and deformed. Therefore, in order to solve this problem, a method of achieving improvement in rigidity against earth pressure from the outside of the side wall of the synthetic resin U-shaped groove by forming the side wall surface from the bottom wall surface of the U-shaped groove into a corrugated shape or similar uneven shape. Are known and used (Japanese Patent Laid-Open Nos. 61-83731 and 11-1956). It should be noted that in this type of U-shaped groove, designing the above uneven shape in the vicinity of the bottom of the U-shaped groove to prevent the rainwater or groundwater from flowing sufficiently, and the function as a flow path that is originally intended for use is sufficient. Can no longer be fulfilled. Therefore, a method of keeping the inner wall surface of the U-shaped groove flat and providing an uneven shape only on the outer wall surface (for example, Japanese Patent Laid-Open No. 8-151677, etc.) has been studied. This is not possible and this is not necessarily an advantageous measure.

しかしながら、Ｕ字溝の側壁外からの土圧に対する剛性を高めるためにＵ字溝の形状に単に凹凸条を与えるのみでは自ずと限界があり、またその壁厚を厚くするとしても製造コストが上昇する。加えてＵ字溝の、使用時に左右の側壁を内側に押し変形させる土圧は側壁に対して垂直の方向に働く場合の他、側壁に対して斜めの方向にも働く。さらに、Ｕ字溝に加わる土圧の程度は、Ｕ字溝全体についてみると不均等なものとなりやすく、ねじれ応力がＵ字溝に作用する結果になり易い。従ってＵ字溝は、種々の荷重方向からの圧力にも耐える剛性を備えるように配慮する必要がある。そこで従来、Ｕ字溝の形状を工夫するほか、Ｕ字溝の一番弱い部分であるＵ字溝上部において、Ｕ字溝の両側壁を架け渡す補強材を幅方向に数カ所取り付けることにより、合成樹脂製Ｕ字溝の側壁への土圧に対して剛性を向上させる方法も知られている。例えば、上記特開平１１−１９５６号公報においてはより強度を確保するため両側壁部上端に沿ってあてがい補強材を配し、リベットやボルト・ナットにより前記補強材に固定した金属製の複数の架け渡し材で架け渡した構造を開示している。また、特開２０００−１２９７６８号公報は合成樹脂製のＵ字溝部材の対向する側壁の上端部に形成した受容部にその長手方向に形鋼からなる補強材を配設した上で、受容部間にボルト・ナットで固定した横架材により架け渡しするかまたはその両端部が逆Ｕ字形に折り曲げられて、Ｕ字溝の両側壁上端部に上方から跨ぐように成形された嵌め込み可能な嵌込部を有する横架材にて架け渡ししたＵ字溝部材を示す。後者の場合にはＵ字溝に固定する横架材の止め具を必要としないものである。
特開昭６１−８３７３１号公報 特開平１１−１９５６号公報 特開平８−１５１６７７号公報 特開２０００−１２９７６８号公報 However, in order to increase the rigidity against the earth pressure from outside the sidewall of the U-shaped groove, there is a limit to merely providing the shape of the U-shaped groove with an uneven groove, and the manufacturing cost increases even if the wall thickness is increased. . In addition, the earth pressure that pushes and deforms the left and right side walls inward during use of the U-shaped groove works not only in a direction perpendicular to the side walls but also in a direction oblique to the side walls. Further, the degree of earth pressure applied to the U-shaped groove is likely to be uneven when the entire U-shaped groove is viewed, and torsional stress tends to act on the U-shaped groove. Therefore, it is necessary to consider that the U-shaped groove has rigidity that can withstand pressure from various load directions. Therefore, in addition to devising the shape of the U-shaped groove, it has been synthesized by attaching several reinforcing materials across the side walls of the U-shaped groove at the upper part of the U-shaped groove, which is the weakest part of the U-shaped groove. A method for improving the rigidity against earth pressure on the side wall of the resin U-shaped groove is also known. For example, in the above-mentioned Japanese Patent Application Laid-Open No. 11-1956, a plurality of metal bridges that are provided with a reinforcing member arranged along the upper ends of both side wall portions and secured to the reinforcing member with rivets, bolts, and nuts in order to secure more strength. Disclosed is a structure spanned by a delivery material. Japanese Patent Laid-Open No. 2000-129768 discloses a receiving portion formed by arranging a reinforcing member made of a shape steel in the longitudinal direction in a receiving portion formed at the upper end portion of the opposite side wall of a synthetic resin U-shaped groove member. Fitted with a horizontal member fixed with bolts and nuts between them, or both ends are bent in an inverted U shape, and fitted into the upper end of both side walls of the U-shaped groove so as to straddle from above The U-shaped groove member bridged with the horizontal member which has a ridge part is shown. In the latter case, there is no need for a stopper for the horizontal member to be fixed to the U-shaped groove.
JP 61-83731 A JP-A-11-1956 Japanese Patent Laid-Open No. 8-151677 JP 2000-129768 A

上記従来技術において、Ｕ字溝上部にＵ字溝の両側壁を架け渡す補強材は、主に、断面
略Ｌ字形のアングル型鋼材等の金属製で、Ｕ字溝の壁側部上部にネジや、ボルト・ナット等の止め具（固定具）を使用するものであるか、固定具を要しなくても架け渡し補強材の両端が複雑な形状をなすものである。しかしながら、Ｕ字溝に架け渡し材を架け渡すために、従来のようなネジや、ボルト・ナット等の固定具を使用することは、Ｕ字溝の敷設作業がとても煩雑な作業になる。また、架け渡し補強材の両端が複雑な形状をなすものでは、その形状を製造する際に、折り曲げ加工すべき箇所が多く、工程数を多く要し、製造コスト面で不利である。さらに、上記従来のＵ字溝は、架け渡し材の補強材受容部として、Ｕ字溝の長手方向に延びる補強用の金属製の補助部材を併用する必要があるもの（特開平１１−１９５６号公報）であるか、または補強材としての金属を一体成形してＵ字溝の両側壁上部に直接埋込む形式のもの（特開２０００−１２９７６８号公報）である。これは、金属製の補強材を長手方向と幅方向にはしご状に配置することが剛性の著しい向上を図る上で効果的であると考えられるためである。しかしながら、架け渡し材の配置のために、Ｕ字溝に補助部材を装着しなければならないことは、Ｕ字溝の敷設の作業性をより悪くする。また、一体成形にてＵ字溝に補強材を埋込む形式のものはＵ字溝の製造に当たって工程数が多くコスト高になる。また、金属は腐食するので、金属製の架け渡し材は腐食による強度の減少および外観の悪化が生じるおそれがある。また、Ｌ字形のアングル型鋼材は、鋭利な部分が突出した状態で取り付けられるため、作業者を負傷させたり、作業者の衣服が引掛かり破れるおそれもある。従って、本発明の課題は、取り付けのために補助部材や固定具を必要とせずに簡単に取付けられ、しかも、簡単な形状で製造費も安価な架け渡し材を、横架、固定することによって、十分な強度と高い剛性を確保し得る、架け渡し材を備えた合成樹脂製のＵ字溝を提供することにある。また、金属製架け渡し材を使用した場合と比較してそれに劣らない強度が得られ、しかも腐食による悪影響がなくかつ、作業者が負傷しがちな鋭利な部分が突出した形状をもたない部材からなり、設置作業を安全にかつ容易迅速に行い得るＵ字溝を提供することにある。 In the above prior art, the reinforcing material that bridges both side walls of the U-shaped groove on the upper part of the U-shaped groove is mainly made of metal such as an angle-type steel material having a substantially L-shaped cross section, and is screwed on the upper side of the U-shaped groove. In addition, a stopper (fixing tool) such as a bolt or a nut is used, or both ends of the spanning reinforcing material have a complicated shape without requiring a fixing tool. However, the use of conventional fasteners such as screws and bolts and nuts to bridge the bridging material in the U-shaped groove makes the U-shaped groove laying work very complicated. Moreover, when both ends of the bridge reinforcing material have a complicated shape, there are many places to be bent when manufacturing the shape, which requires a large number of steps, which is disadvantageous in terms of manufacturing cost. Further, the conventional U-shaped groove requires a reinforcing metal auxiliary member extending in the longitudinal direction of the U-shaped groove as a reinforcing material receiving portion of the bridging material (Japanese Patent Laid-Open No. 11-1956). Japanese Patent Laid-Open No. 2000-129768), or a metal integrally formed as a reinforcing material and directly embedded in the upper part of both side walls of the U-shaped groove. This is because it is considered that arranging the metal reinforcing members in a ladder shape in the longitudinal direction and the width direction is effective in achieving a significant improvement in rigidity. However, the fact that the auxiliary member has to be mounted in the U-shaped groove for the arrangement of the bridging material makes the workability of laying the U-shaped groove worse. Further, the type in which the reinforcing material is embedded in the U-shaped groove by integral molding has a large number of processes and high cost in manufacturing the U-shaped groove. Further, since the metal corrodes, there is a possibility that the strength of the metal bridge material may be reduced and the appearance may be deteriorated due to the corrosion. Further, since the L-shaped angle-type steel material is attached in a state in which a sharp portion protrudes, there is a possibility that the worker may be injured or the worker's clothes may be caught and torn. Therefore, an object of the present invention is to lay and fix a bridging material that can be easily mounted without requiring an auxiliary member or a fixture for mounting, and that is simple in shape and inexpensive to manufacture. Another object of the present invention is to provide a synthetic resin U-shaped groove provided with a bridging material that can ensure sufficient strength and high rigidity. In addition, it has a strength that is not inferior to that when using a metal bridging material, has no adverse effects due to corrosion, and does not have a shape that protrudes sharp parts that are prone to injury to workers. It is to provide a U-shaped groove that can be installed safely and easily.

本発明者は上記課題を解決するべく鋭意検討を行った。その結果、凹条部位と凸条部位を交互にＵ字溝の長手方向に連続形成することにより波形に成形されたＵ字溝本体と、該本体の左右の壁側部の間に横架された架け渡し材とを備えてなるＵ字溝であって、該本体の左右の内壁側部の上部にそれぞれ架け渡し材受け部を形成し、そこに簡単な構造の架け渡し材を単に嵌め止めることによって容易に取り付けることができるＵ字溝が、従来の金属製の補強材を用いたＵ字溝に劣らない十分な強度と高い剛性をもち、かつ、作業性に優れていることを見出した。すなわち、本発明は、断面Ｕ字形状の壁を形成するＵ字溝本体であって、該本体の壁底部から左右の壁側部の上部へと延びる凹条部位および凸条部位を交互に、Ｕ字溝の長手方向に連続形成することにより、波形に成形されたＵ字溝本体と、該本体の左右の壁側部の間に横架、固定される架け渡し材とを備えてなる、Ｕ字溝であって、前記左右の壁側部は、その上部においてそれぞれ、該架け渡し材の端部を嵌め止めることができる架け渡し材受け部を形成してなることを特徴とする、硬質合成樹脂または繊維強化樹脂からなるＵ字溝に関する。本発明で特に好ましい態様は前記架け渡し材が、角アングル材からなり、一方、前記架け渡し材受け部は、該架け渡し材の端部を受け収めることができる略Ｌ字形の受け凹部よりなることを特徴とするものである。他の態様には、前記架け渡し材は、管材、筒材または両端部に差込み孔を形成する軸材からなり、一方、前記架け渡し材受け部は、該架け渡し材の端部を嵌合し得る突部と、該突部の下側に、嵌合された架け渡し材を支持する支持部よりなる場合も挙げられる。また、本発明では上記の嵌め止める方式で使用する架け渡し材に加えて、上記平板または平坦な上面を有する角アングル材からなる他の架け渡し材をさらに備えるとともに、前記Ｕ字溝の左右の壁側部の上端が各々、外方に延びて、平坦な面を有する架け渡し材受け面を形成してなり、前記他の架け渡し材の両端部が硬質合成樹脂または繊維強化樹脂からなるリベットを用いて、該架け渡し材受け面上部で鋲着されているＵ字溝も好ましい。また、これら本発明のＵ字溝のうちＵ字溝本体の左右の壁側部の上部において、剛性を高めるべく前記凹条部位が内
方に反り成形されているものが好ましい。さらにまた、Ｕ字溝本体が、剛性を高め、さらにＵ字溝の浮上防止のため左右の壁側部に外方に突出するリブ部を設けてなる態様も好ましい。本発明の好ましい態様はまた、前記架け渡し材受け面上にＵ字溝の長手方向に沿って装着される、硬質合成樹脂または繊維強化樹脂からなる補強材をさらに備えてなる、硬質合成樹脂または繊維強化樹脂からなるＵ字溝である。 The present inventor has intensively studied to solve the above problems. As a result, a U-shaped groove body formed in a corrugated shape by alternately forming a concave portion and a convex portion in the longitudinal direction of the U-shaped groove, and a horizontal wall between the left and right wall sides of the main body. A U-shaped groove provided with a bridging material, each of which forms a bridging material receiving portion at the upper part of the left and right inner wall sides of the main body, and simply fits the bridging material with a simple structure there It has been found that the U-shaped groove that can be easily attached has sufficient strength and high rigidity that is not inferior to the U-shaped groove using a conventional metal reinforcing material, and is excellent in workability. . That is, the present invention is a U-shaped groove main body that forms a U-shaped cross-section wall, and alternately has a concave stripe portion and a convex stripe portion extending from the bottom of the wall to the upper part of the left and right wall sides, By continuously forming in the longitudinal direction of the U-shaped groove, it comprises a U-shaped groove main body formed into a corrugated shape, and a bridging material that is horizontally mounted and fixed between the left and right wall side portions of the main body. It is a U-shaped groove, and each of the left and right wall side portions is formed with a bridging material receiving portion capable of engaging with an end portion of the bridging material at the upper part thereof. The present invention relates to a U-shaped groove made of synthetic resin or fiber reinforced resin. In a particularly preferred aspect of the present invention, the bridging material is formed of a square angle material, while the bridging material receiving portion is formed of a substantially L-shaped receiving concave portion capable of receiving an end portion of the bridging material. It is characterized by this. In another aspect, the bridging material is a tube material, a cylindrical material, or a shaft material that forms insertion holes at both ends, while the bridging material receiving portion is fitted to the end of the bridging material. There may be a case in which a projecting portion that can be formed and a support portion that supports the bridging material fitted to the lower side of the projecting portion. Further, in the present invention, in addition to the bridging material used in the above-described fitting and fastening method, the bridging material further includes another bridging material made of the flat plate or a square angle material having a flat upper surface, and the left and right sides of the U-shaped groove Rivets in which the upper ends of the wall side portions each extend outward to form a bridging material receiving surface having a flat surface, and both ends of the other bridging material are made of hard synthetic resin or fiber reinforced resin A U-shaped groove that is attached to the upper portion of the bridge material receiving surface is also preferable. Further, among these U-shaped grooves of the present invention, it is preferable that the upper and lower wall side portions of the U-shaped groove main body have the concave portion warped inward to increase rigidity. Furthermore, it is preferable that the U-shaped groove main body is provided with rib portions that protrude outwardly on the left and right wall side portions in order to increase rigidity and prevent the U-shaped groove from rising. A preferred embodiment of the present invention also includes a hard synthetic resin or a reinforcing material made of a hard synthetic resin or a fiber reinforced resin, which is mounted on the bridging material receiving surface along the longitudinal direction of the U-shaped groove. A U-shaped groove made of fiber reinforced resin.

本発明のＵ字溝は、壁底部から左右の壁側部の上部へと延びる凹条部位および凸条部位を交互に、Ｕ字溝の長手方向に連続形成することにより、波形に成形されたＵ字溝本体と、該本体の左右の壁側部の間に横架、固定される架け渡し材とを備えるが、前記架け渡し材の横架、固定は、該Ｕ字溝本体の左右の壁側部の上部に設けられた架け渡し材受け部にそれぞれ架け渡し材の端部を嵌め止めることによって行うことができるものである。従って、架け渡し材の取り付けはネジやボルト・ナット止め等の固定具を必要せず、極めて簡単な作業で迅速に行うことができ、Ｕ字溝の設置作業時間を短縮できる。また、固定具を必要としないことから製造コストも低減できる。しかも、本発明のＵ字溝では、架け渡し材受け部が、Ｕ字溝本体の構造の一部として成形と同時に得られるので、架け渡し材の取付けのために、Ｕ字溝本体に取付ける他の補助部材を必要としない。また、架け渡し材の方も、好ましくは角アングル材からなる架け渡し材、あるいは、管材、筒材または両端部に差込み孔を形成する軸材という簡単な形状のものが使用できるため、複雑な形状の架け渡し材を製造する必要がない。従って、本発明は、Ｕ字溝本体と架け渡し材の二つの部材のみの極めて簡単な構成でＵ字溝を提供でき、またこれらを製造する工程も煩雑にはならない。さらに本発明のＵ字溝は全ての部材が硬質合成樹脂または繊維強化樹脂からなるので、従来技術のように金属製の架け渡し材を使用した場合と比べ腐食による強度の減少や外観の悪化が生じることがなく、架け渡し材も軽量であり、作業者の負担が軽減される。その上、本発明のＵ字溝は、従来の金属製の架け渡し材を使用する場合に劣らずその左右の壁側部上部付近に加わる種々の方向からの土圧荷重に対して十分な剛性をもつ、変形し難いＵ字溝である。また、本発明のＵ字溝の部材は、鋭利な部分が突出しない構造であるので作業者を負傷させたり、作業者の衣服が引掛かり破れるおそれも減少する。しかしまた、本発明のＵ字溝は上記角アングル材あるいは管材等の架け渡し材に加えて、さらに硬質合成樹脂または繊維強化樹脂製のリベットを用いて鋲着することのできる上述したような平板または平坦な上面を有する角アングル材からなる他の架け渡し材を併用することもできるので、さらにＵ字溝の左右の壁側部上部付近に加わる土圧に対してより高い剛性を与えることができる。なお、この場合であっても固定作業は樹脂製のリベットを使用するため、ネジやボルト・ナット等による固定のように煩雑にはならない。またこの場合において、前記Ｕ字溝本体の左右の壁側部の上端は各々、外方に延びて、平坦な面を有する架け渡し材受け面を形成する構造をとれば、前記他の架け渡し材をその両端部をそのまま該架け渡し材受け面上に固定でき、該架け渡し材を両壁側部の上部に配置するための補助部材は必要ない。その結果、補助部材を必要とする従来技術よりもＵ字溝の部材が少なくなり、Ｕ字溝の設置作業時間と製造コストを減少させる。また、前記波形に成形された本発明のＵ字溝本体は、その左右の壁側部の上部において凹条部位が内方に反った構造に成形されていれば、該壁側部上部においては外方から内方に絞り込まれた形状になるので、従来の単に凹凸条を底面から側面にかけてのみ配した合成樹脂製のＵ字溝に比べて壁側部の上部の剛性を高めることができる。さらに、本発明のＵ字溝本体は左右の壁側部に外方に突出するリブ部を設けることによって、より一層高い剛性が達成でき、また、このリブ部によって構成される壁側部から外側に突出した部分は、Ｕ字溝埋設の際に土砂が堆積しその荷重が負荷されるためＵ字溝をより効果的に固定し、Ｕ字溝の浮き上がりを防止する。しかしなお、本発明のＵ字溝の両壁側上部の架け渡し材受け面上に長手方向に沿って硬質合成樹脂または繊維強化樹脂製の補強材を装着することもできる。この装着によって、Ｕ字溝にさらにより高い剛性を与えることも可能である。従って、本発明により、作業効率と安全性が高く、軽量であるが剛性が高いＵ字溝が提供できる。   The U-shaped groove of the present invention was formed into a corrugated shape by alternately forming concave and convex portions extending from the bottom of the wall to the upper portions of the left and right wall side portions in the longitudinal direction of the U-shaped groove. A U-shaped groove main body and a bridging member that is horizontally mounted and fixed between the left and right wall side portions of the main body, and the horizontal crossing and fixing of the bridging material are performed on the left and right sides of the U-shaped groove main body. This can be performed by fitting the end of the bridging material to the bridging material receiving portion provided at the upper part of the wall side portion. Therefore, the attachment of the bridging material does not require fixing tools such as screws, bolts and nuts, and can be quickly performed by an extremely simple operation, and the time for installing the U-shaped groove can be shortened. In addition, since no fixture is required, the manufacturing cost can be reduced. Moreover, in the U-shaped groove of the present invention, the bridging material receiving portion is obtained simultaneously with molding as a part of the structure of the U-shaped groove main body. No auxiliary member is required. Also, the bridge material can be a simple material such as a bridge material, preferably a square angle material, or a tube material, a cylindrical material, or a shaft material that forms insertion holes at both ends. There is no need to manufacture a cross-shaped material. Therefore, the present invention can provide a U-shaped groove with a very simple configuration of only two members, ie, a U-shaped groove main body and a bridging material, and the process of manufacturing these is not complicated. Furthermore, since all the members of the U-shaped groove of the present invention are made of hard synthetic resin or fiber reinforced resin, the strength is reduced by the corrosion and the appearance is deteriorated as compared with the case of using a metal bridging material as in the prior art. It does not occur, and the bridging material is lightweight, reducing the burden on the operator. In addition, the U-shaped groove of the present invention is not inferior to the case of using a conventional metal bridging material, and has sufficient rigidity against earth pressure loads from various directions applied near the upper part of the left and right side walls. This is a U-shaped groove that is difficult to deform. In addition, since the U-shaped groove member of the present invention has a structure in which a sharp portion does not protrude, the risk of injury to the operator and the possibility of the operator's clothes being caught and torn is reduced. However, the U-shaped groove of the present invention is a flat plate as described above that can be attached using a rivet made of hard synthetic resin or fiber reinforced resin in addition to the bridging material such as the square angle material or the tube material. Or, it can be used together with other bridging materials made of a square angle material having a flat upper surface, so that it can give higher rigidity to earth pressure applied near the upper part of the left and right wall sides of the U-shaped groove. it can. Even in this case, since the fixing work uses resin rivets, it is not as complicated as fixing with screws, bolts and nuts. Further, in this case, the upper ends of the left and right wall side portions of the U-shaped groove main body each extend outwardly to form a bridging material receiving surface having a flat surface. Both ends of the material can be directly fixed on the bridge material receiving surface, and an auxiliary member for disposing the bridge material on the upper portions of the side portions of both walls is not necessary. As a result, the number of U-shaped grooves is less than that of the prior art that requires an auxiliary member, reducing the U-shaped groove installation work time and manufacturing cost. Further, if the U-shaped groove body of the present invention formed into the corrugated shape is formed in a structure in which the concave portion is warped inward at the upper part of the left and right wall side parts, Since the shape is squeezed from the outside to the inside, the rigidity of the upper portion of the wall side portion can be increased as compared with the conventional U-groove made of synthetic resin in which the concavo-convex ridges are arranged only from the bottom surface to the side surface. Furthermore, the U-shaped groove main body of the present invention can achieve higher rigidity by providing rib portions projecting outwardly on the left and right wall side portions, and further, on the outside from the wall side portion constituted by the rib portions. The portion that protrudes into the U-shaped groove accumulates earth and sand when the U-shaped groove is buried, and the load is applied, so that the U-shaped groove is more effectively fixed and the U-shaped groove is prevented from rising. However, a reinforcing material made of hard synthetic resin or fiber reinforced resin can also be mounted along the longitudinal direction on the bridging material receiving surface on the upper side of both walls of the U-shaped groove of the present invention. By this attachment, it is possible to give the U-shaped groove even higher rigidity. Therefore, according to the present invention, it is possible to provide a U-shaped groove having high work efficiency and safety, light weight but high rigidity.

本発明の硬質合成樹脂または繊維強化樹脂からなるＵ字溝本体は、壁底部から左右の壁側部の上部へと延びる凹条部位および凸条部位を交互に、Ｕ字溝の長手方向に連続形成することにより、波形に成形されて剛性をはかっている。そして、本発明のＵ字溝は、特にその側部における種々の荷重方向からの土圧に対し、剛性を高めるために架け渡し材をＵ字溝本体の左右の壁側部の間に横架・固定するが、架け渡し材の取付けをＵ字溝本体の左右の壁側部への嵌め止めによりなしうるようにするために、該左右の壁側部の上部において架け渡し材受け部を形成するべく成形されていることを特徴とするものである。従って、本発明のＵ字溝における架け渡し材の取り付けは、ネジやボルト・ナット止め等の固定具を全く必要としないので従来の取付け固定作業を省力化でき、取付け作業を極めて迅速容易に行うことができる。なお、上記架け渡し材を嵌め止めるための架け渡し材受け部は、架け渡し材が架け渡されるＵ字溝本体の左右の壁側部側に凹状または凸状形態で設けられる。この架け渡し材受け部の位置は特に構造的に弱い部分となる、Ｕ字溝本体の左右の壁側部の上端付近に設けられる。しかもこの架け渡し材受け部はＵ字溝本体の成形と同時に形成されるので、架け渡し材の配置のために、成形したＵ字溝本体の他に補助部材や固定具は必要とはならない。   The U-shaped groove main body made of the hard synthetic resin or the fiber reinforced resin of the present invention is continuous in the longitudinal direction of the U-shaped groove alternately with the ridges and ridges extending from the wall bottom to the upper part of the left and right wall sides. By forming, it is formed into a corrugated shape and has rigidity. The U-shaped groove of the present invention is installed horizontally between the left and right wall side portions of the U-shaped groove main body in order to increase the rigidity particularly against earth pressure from various load directions at the side portion.・ In order to fix the bridge material so that it can be attached to the left and right wall sides of the U-shaped groove body, a bridge material receiving part is formed at the upper part of the left and right wall sides. It is characterized in that it is shaped to do this. Therefore, the mounting of the bridging material in the U-shaped groove of the present invention does not require any fixing tools such as screws, bolts and nuts, so the conventional mounting and fixing work can be saved, and the mounting work can be performed very quickly and easily. be able to. In addition, the bridging material receiving portion for fastening the bridging material is provided in a concave or convex shape on the left and right wall side portions of the U-shaped groove main body on which the bridging material is bridged. The position of the bridging material receiving portion is provided in the vicinity of the upper ends of the left and right wall side portions of the U-shaped groove main body, which is a particularly structurally weak portion. Moreover, since this bridging material receiving portion is formed simultaneously with the molding of the U-shaped groove main body, no auxiliary member or fixture is required in addition to the molded U-shaped groove main body for the arrangement of the bridging material.

本発明における架け渡し材の第一の態様は、架け渡し材としてＵ字溝と同様の硬質合成樹脂または繊維強化樹脂からなる角アングル材、特に従来からよく知られている断面略Ｌ字形の角アングル材を使用するものである。この場合、前記角アングル材を嵌め止める側のＵ字溝本体の左右の壁側部には、この架け渡し材の端部を受け収めることができるように略Ｌ字形の受け凹部よりなる架け渡し材受け部が設けられる。この態様では、架け渡し材の形状が極めて簡単で、しかも汎用性のある断面略Ｌ字形の角アングル材を使用するので、従来提案されている、両端部が複雑な形状の架け渡し材と比較して調達が容易で、製造費用も抑えられる。通常、この角アングル材は、左右の壁側部上部への土圧に対し最も剛性を持つように折れ曲がり部分の山側を上にするように取付けられる。また、このように取付ければＵ字溝の設置後、角アングル材の長さ方向の縁が上を向かず作業者への安全性も高まる。またＵ字溝本体の左右壁側部の受け凹部は、角アングル材の端部を嵌め込んで固定できるように角アングル材の端部断面の形を取り囲むような略Ｌ字形の形状をとるが、この形状の一部分に開口部を有するようにすれば角アングル材の嵌め込みがより容易となり、また、Ｕ字溝設置作業時にこの凹部に土砂等の異物が入った場合に除去し易いので好ましい。この受け凹部は架け渡す角アングル材を取り付ける角度に合わせて形成される。角アングル材が折れ曲がり部分の山側を上にするように取付けられる場合、受け凹部は開口部をその上部に設けることが嵌め止めを容易にするため好ましい。本発明の架け渡し材の第二の態様は、架け渡し材としてＵ字溝と同様の硬質合成樹脂または繊維強化樹脂からなる管材、筒材または両端部に差込み孔を形成する軸材を使用し、これを嵌め止める側のＵ字溝本体の左右の壁側部の上部には、この架け渡し材の端部を嵌合し得る突部と、該突部の下側に、嵌合された架け渡し材を支持する支持部よりなる架け渡し材受け部が設けられるものである。この態様においても、架け渡し材の形状は極めて簡単で製造に多くの工程を必要としない。この架け渡し材受け部は好ましくはＵ字溝の凹条部位に設けられ、架け渡し材が、Ｕ字溝本体側の突部に嵌合されたとき、その両端部が隣り合う凸条部位と密接する構造に設計されていれば、Ｕ字溝本体への架け渡し材の固定がより確実となり、剛性がさらに高められる。上記Ｌ字形の角アングル材並びに、管材、筒材または両端部に差込み孔を形成する軸材は極めて簡単に取り付けることが可能であるにも係らず、それらがもつ材料力学的特性により十分に高い剛性をもつので、Ｕ字溝本体の左右の壁側部上部付近に加わる種々の方向からの土圧荷重に対して十分な剛性を与える。しかもこの架け渡し材の形状は極めて簡単な形状であるため製造に多くの工程を必要としない。   The first aspect of the bridging material according to the present invention is a square angle material made of a hard synthetic resin or fiber reinforced resin similar to the U-shaped groove as the bridging material, in particular, a corner having a generally L-shaped cross section that has been well known conventionally. Angle material is used. In this case, a bridge formed by a substantially L-shaped receiving recess is provided on the left and right wall side portions of the U-shaped groove main body on the side where the square angle member is to be fitted so that the end of the bridge member can be received. A material receiving part is provided. In this aspect, the shape of the bridging material is extremely simple, and a general angle L-shaped square angle material is used, so it is compared with the bridging material that has been proposed in the past with complicated shapes at both ends. Procurement is easy and manufacturing costs can be reduced. Usually, this angle-angle member is attached so that the mountain side of the bent portion faces upward so as to have the most rigidity against the earth pressure on the upper part of the left and right wall sides. Moreover, if it attaches in this way, after installation of a U-shaped groove | channel, the edge of the length direction of a square angle material will not face upwards, and the safety to an operator will also increase. In addition, the receiving recesses on the left and right wall sides of the U-shaped groove main body have a substantially L-shape that surrounds the shape of the end section of the square angle member so that the end of the square angle member can be fitted and fixed. It is preferable to have an opening in a part of this shape because it is easier to fit the square-angle material, and it is easy to remove if foreign matter such as earth and sand enters the recess during the U-shaped groove installation operation. This receiving recess is formed in accordance with the angle at which the spanning angle member is attached. When the angled angle member is attached so that the mountain side of the bent portion is on the upper side, it is preferable that the receiving recess is provided with an opening at the upper portion for easy fitting. The second aspect of the bridging material of the present invention uses a tubular material made of a hard synthetic resin or fiber reinforced resin similar to the U-shaped groove, a tubular material, or a shaft material that forms insertion holes at both ends as the bridging material. The upper portion of the left and right wall side portions of the U-shaped groove body on the side to which this is to be fitted is fitted with a projection that can fit the end portion of the bridging material, and the lower side of the projection. A bridging material receiving portion comprising a support portion for supporting the bridging material is provided. Also in this aspect, the shape of the bridging material is very simple and does not require many steps for manufacturing. This bridging material receiving portion is preferably provided in the U-shaped groove concave portion, and when the bridging material is fitted to the protrusion on the U-shaped groove main body side, both ends thereof are adjacent to the convex portion. If it is designed to have a close structure, the bridging material is more securely fixed to the U-shaped groove body, and the rigidity is further increased. The L-shaped square angle material and the tube material, the cylindrical material, or the shaft material that forms the insertion hole at both ends can be mounted very easily, but are sufficiently high due to the material mechanical properties of them. Since it has rigidity, sufficient rigidity is given to earth pressure loads from various directions applied to the vicinity of upper portions of the left and right wall sides of the U-shaped groove main body. In addition, since the shape of the bridge member is extremely simple, it does not require many steps for manufacturing.

本発明のＵ字溝は上記のような、端部を嵌め止めて取付ける架け渡し材に加えて、両端
部をリベットを用いてＵ字溝本体の両壁側部上部に鋲着できる、平板または平坦な上面を有する角アングル材を他の架け渡し材として併用することもできる。前記他の架け渡し材もリベットも硬質合成樹脂または繊維強化樹脂からなる。他の架け渡し材を併用する場合には、本発明のＵ字溝本体の左右の壁側部の上端が各々、外方に延びて、平坦な面を有する架け渡し材受け面を形成する構造をとると、前記他の架け渡し材は、その両端部をそのまま該架け渡し材受け面上に配置でき、該架け渡し材を両壁側部の上部に配置するための補助部材をなんら必要とせずに取り付けることができる。なお、この他の架け渡し材を使用する際には、Ｕ字溝に固定するための固定具としてリベットを使用するが、固定具としてネジ等を使用する場合に比べて、取り付け作業は迅速に行うことができる。さらに、本発明では、前記波形に成形されるＵ字溝本体においてＵ字溝本体の左右の壁側部の凹条部位が、そのまま上端まで延びるのではなく、上部において内方に反った構造に成形されていれば、本発明のＵ字溝本体の形状は両壁側部上部においては外方から内方に絞り込まれた形状をとることとなって、この形状により、Ｕ字溝の構造上特に弱い部分となる、Ｕ字溝本体の左右の壁側部の上部に剛性を与え、従来の単に凹凸条を底面から側面にかけてのみ配した合成樹脂製のＵ字溝よりも一層剛性を高めることが可能となる。さらにまた、本発明のＵ字溝本体は、左右の壁側部に外方に突出するリブ部を設けることによって、より一層高い剛性を達成し、また、このリブ部によって構成される壁側部から外側に突出した部分は、Ｕ字溝埋設の際に土砂が堆積しその荷重が負荷されるためＵ字溝をより効果的に固定し、地下水位の上昇によるＵ字溝の浮き上がりの防止に役立つ。加えて本発明のＵ字溝では、Ｕ字溝の長手方向に沿って、左右壁側部上部の架け渡し材受け面上に硬質合成樹脂または繊維強化樹脂製の補強材を装着することもできる。この装着によって、Ｕ字溝にさらにより高い剛性を与えることも可能である。 The U-shaped groove of the present invention can be attached to the upper part of both side walls of the U-shaped groove main body by using rivets in addition to the above-described bridging material to which the end is fixed and attached. A square-angle material having a flat upper surface can also be used as another bridging material. The other bridging materials and rivets are made of hard synthetic resin or fiber reinforced resin. When other bridging material is used in combination, the upper ends of the left and right wall side portions of the U-shaped groove body of the present invention each extend outward to form a bridging material receiving surface having a flat surface. If this is the case, the other bridging material can be placed on the bridging material receiving surface as it is, and no auxiliary member is required to place the bridging material on top of the side portions of both walls. Can be installed without. In addition, when using other bridges, rivets are used as fixtures for fixing to the U-shaped groove, but the installation work is quicker than when screws or the like are used as fixtures. It can be carried out. Further, in the present invention, in the U-shaped groove body formed into the corrugated shape, the concave stripe portions on the left and right wall side portions of the U-shaped groove body do not extend as it is to the upper end, but are warped inward at the upper part. If molded, the shape of the U-shaped groove body of the present invention is a shape that is narrowed from the outside to the inside at the upper part of both side walls. Give rigidity to the upper part of the left and right wall side parts of the U-shaped groove body, which is a particularly weak part, and further increase the rigidity compared to the conventional U-groove made of synthetic resin, which is simply arranged from the bottom to the side. Is possible. Furthermore, the U-shaped groove body of the present invention achieves higher rigidity by providing rib portions protruding outwardly on the left and right wall side portions, and the wall side portion constituted by the rib portions. The part that protrudes outward from the ground accumulates sediment when U-grooves are buried, and the load is applied to fix the U-grooves more effectively, and to prevent the U-grooves from rising due to the rise in groundwater level. Useful. In addition, in the U-shaped groove of the present invention, a reinforcing material made of hard synthetic resin or fiber reinforced resin can be mounted on the bridging material receiving surface at the upper part of the left and right walls along the longitudinal direction of the U-shaped groove. . By this attachment, it is possible to give the U-shaped groove even higher rigidity.

図面を参照して本発明をさらに詳細に説明する。以下の実施例は本発明を限定することを目的とするものではない。   The present invention will be described in more detail with reference to the drawings. The following examples are not intended to limit the invention.

実施例１
本発明のＵ字溝１において、架け渡し材として略Ｌ字形の角アングル材７Ａを使用する場合を図１〜３に示す。図１は本実施例のＵ字溝１の形状を説明する図であり、図２は本実施例のＵ字溝１の平面図であり、図３は、図２に対応する側面図である。Ｕ字溝１は、例えば幅１８０ｍｍ、２４０ｍｍ、３００ｍｍ、４００ｍｍ、５００ｍｍ、６００ｍｍ、７００ｍｍ、８００ｍｍ、９００ｍｍ、１０００ｍｍの寸法規格を有する各種製品よりなり、いずれも直壁タイプである。図１ないし図３から明らかなように、ポリエチレン樹脂からなるＵ字溝本体２は、左右の壁側部４、４が各々、壁底部３から垂直に立ちあがった形状をなし、壁底部３から左右の壁側部４、４の上部へと延びるところの凹条部位５・・および凸条部位６・・を交互にＵ字溝１の長手方向に連続形成することにより、波形に成形されている。本実施例のように壁底部３から垂直に立ち上がった形状の他、Ｕ字溝本体２は上部に向けてやや外開きに立ち上がった形状をとってもよい。また本発明における断面のＵ字形状とは、流体通路を形成する凹部空間を形成するもの一般を含み、本来のＵ字形の他、断面コの字形、あるいは上面が開放された断面半円状のものを含むものとする。また、本実施例ではＵ字溝本体及び、その他の部材の硬質合成樹脂としてポリエチレン樹脂を使用したが、他に、ポリ塩化ビニル、ポリプロピレン、ポリエチレンテレフタレート、ポリアミド、ポリフェニレンスルフィド等が使用でき、また、不飽和ポリエステル等に、ガラス繊維、炭素繊維、有機繊維（ケブラー等）などを含有させた繊維強化樹脂（ＦＲＰ、ＦＲＴＰ）等が利用できる。さらに、本発明のＵ字溝本体２はブロー成形、回転成形等により成形できる。図４は、図２中のＡ−Ａ線で切断したＵ字溝本体２の凸条部位６・・の断面図を示すが、この図から明らかなように、本実施例のＵ字溝１の構造は、凸条部位６・・についてはそのまま左右の壁側部４、４の上端まで延び、その上端から外方に延びて平坦な面８、８を形成する。しかし、図２中のＢ−Ｂ線で切断したＵ字溝本体２の凹
条部位５の断面図である図５から明らかであるように、凹条部位５・・は左右の壁側部４、４の上部において、そのまま上端まで延びるのではなく、内方に反った形状５ａ・・をとりながら左右の壁側部４、４の上端まで延び、上端から外方に延びて前記平坦な面８、８に繋がっている。この結果、Ｕ字溝本体２の両壁側部４、４の上部は全体として、外方から内方へ絞り込まれたような形状の構造をとる。この構造によって、Ｕ字溝１の敷設時、Ｕ字溝本体２の弱い部分である左右の壁側部４、４の上部付近に加わる種々の荷重方向からの土圧に対しより一層の剛性を与えるものである。 Example 1
In the U-shaped groove | channel 1 of this invention, the case where the substantially L-shaped square angle material 7A is used as a bridging material is shown in FIGS. FIG. 1 is a view for explaining the shape of the U-shaped groove 1 of the present embodiment, FIG. 2 is a plan view of the U-shaped groove 1 of the present embodiment, and FIG. 3 is a side view corresponding to FIG. . The U-shaped groove 1 is made of various products having dimensional standards of, for example, widths 180 mm, 240 mm, 300 mm, 400 mm, 500 mm, 600 mm, 700 mm, 800 mm, 900 mm, and 1000 mm, and each is a straight wall type. As is apparent from FIGS. 1 to 3, the U-shaped groove body 2 made of polyethylene resin has a shape in which the left and right wall side portions 4, 4 are each vertically raised from the wall bottom portion 3. Are formed into a corrugated shape by alternately forming in the longitudinal direction of the U-shaped groove 1 the concave stripe portions 5... And the convex stripe portions 6. . In addition to the shape rising vertically from the wall bottom 3 as in the present embodiment, the U-shaped groove body 2 may take a shape rising slightly outward toward the top. In addition, the U-shape of the cross section in the present invention includes a general one that forms a recessed space that forms a fluid passage. In addition to the original U-shape, the U-shape of the cross-section or a semicircular cross-section with an open upper surface is used. Including things. In addition, in this example, polyethylene resin was used as the hard synthetic resin of the U-shaped groove body and other members, but in addition, polyvinyl chloride, polypropylene, polyethylene terephthalate, polyamide, polyphenylene sulfide, etc. can be used, A fiber reinforced resin (FRP, FRTP) or the like in which glass fiber, carbon fiber, organic fiber (Kevlar or the like) is contained in unsaturated polyester or the like can be used. Furthermore, the U-shaped groove body 2 of the present invention can be formed by blow molding, rotational molding, or the like. FIG. 4 shows a cross-sectional view of the ridge portion 6... Of the U-shaped groove main body 2 cut along the line AA in FIG. 2. As is clear from this figure, the U-shaped groove 1 of this embodiment is shown in FIG. In this structure, the ridge portions 6... Extend as they are to the upper ends of the left and right wall side portions 4 and 4 and extend outward from the upper ends to form flat surfaces 8 and 8. However, as is apparent from FIG. 5 which is a cross-sectional view of the concave portion 5 of the U-shaped groove main body 2 cut along the line BB in FIG. 2, the concave portion 5. 4 does not extend to the upper end as it is, but extends to the upper ends of the left and right wall side parts 4 and 4 while taking an inwardly curved shape 5a... 8 and 8 are connected. As a result, the upper portions of the side wall portions 4 and 4 of the U-shaped groove body 2 as a whole have a structure that is narrowed from the outside to the inside. With this structure, when the U-shaped groove 1 is laid, further rigidity against earth pressure from various load directions applied to the vicinity of the upper portions of the left and right wall side parts 4, 4 which are weak parts of the U-shaped groove body 2 is obtained. To give.

次にＵ字溝本体２への架け渡し材の取付けについて説明する。図１および図２に示すように、Ｕ字溝本体と同じ材質からなる架け渡し材として図６に示す簡単な構造の角アングル材７Ａを使用する場合を第一の態様として示す。図１、図２、図７ないし図９から明らかなようにこの第一の態様では、Ｕ字溝本体２の左右の壁側部４、４上部の凹条部位５・・における内方に反った形状５ａ・・の一部が、Ｕ字溝１の長手方向に対して一定の間隔で、より大きく内方に反り、隣り合う両側の凸条部位６・・と共に平坦な壁側部５ｂ・・を形成しており、同時に、この平坦な壁側部５ｂ・・には架け渡し材受け部として、角アングル材７Ａの端部を受け収めることができる略Ｌ字形の受け凹部９・・が設けられている。架け渡す角アングル材７Ａの取り付け角度は任意であるが、Ｕ字溝側壁部上部への土圧に対する強度を考慮した場合、角アングル材７Ａの折れ曲がり部分の山側を上にするように取付けられる場合が最も好ましく、また、この場合角アングル材７Ａの長さ方向の縁が上を向かないので作業者に対してより安全である。図７は（ａ）は受け凹部９に角アングル材７Ａが嵌め込まれたＵ字溝本体壁側部４の外側から見た状態を示し、そして図７（ｂ）は同じ状態を壁側部４の内側から見た図である（図７（ａ）中の丸枠Ａ部分の拡大図）。受け凹部９の形状は、角アングル材７Ａの端部を嵌め込んで固定できるように角アングル材７Ａの端部断面の形を取り囲むようにして略Ｌ字形の形状をとり、またこの形状の上部には開口部９ａが設けられている。この開口部９ａは角アングル材７Ａの嵌め込みをより容易にし、また、Ｕ字溝１の設置作業時にこの受け凹部９に土砂等の異物が入った場合に除去し易くする。図１、図２、図８および図９に示すように、角アングル材７Ａはその両端部をＵ字溝壁側部４、４上部の両側を押し開くようにしてＵ字溝本体壁側部４、４に設けられた受け凹部９、９に単に嵌め込むことで取付け可能であり、ネジやボルト・ナットならびにリベット等の固定具を必要としないので、取りつけを迅速に進めることができる。しかもＵ字溝本体２側の架け渡し材受け凹部９・・はＵ字溝本体２の構造の一部であり成形と同時に形成されるので、架け渡し材の取り付けにあたってそれを配置するための補助部材や、取り付けのための固定具を一切必要としない。さらに、本発明のＵ字溝における架け渡し材は硬質合成樹脂製または繊維強化樹脂製であるため従来のような金属製の架け渡し材とは異なり、腐食による強度の減少および外観の悪化を生じさせない。また、前記架け渡し材は、Ｌ字形状の角アングル材の架け渡し材の折れ曲がり部分の山側を上にして使用するので、従来のＬ字形状の架け渡し材を使用した場合のように、取り付け後にＵ字溝上面から突出せず、鋭利な部分が生じにくいため、作業現場において架け渡し材の突出部によって作業者が負傷するというおそれはなく、見た目もきれいである。なお本実施例では架け渡し材７ＡがＵ字溝本体２と同じ樹脂である例を述べたが、Ｕ字溝本体２と異なる硬質合成樹脂または繊維強化樹脂を使用してもよい。このようにして、Ｕ字溝の成形によって形成される架け渡し材受け凹部９・・に上記架け渡し材である角アングル７Ａを横架し、嵌め止めることによって、本発明のＵ字溝１はＵ字溝本体２の両壁側部４、４にかかる土圧に対し高い剛性を得ることができ、Ｕ字溝本体２の変形が防止できる。   Next, attachment of the bridging material to the U-shaped groove main body 2 will be described. As shown in FIG. 1 and FIG. 2, the case where the angle-angle member 7A having a simple structure shown in FIG. 6 is used as a bridging member made of the same material as the U-shaped groove main body is shown as a first mode. As apparent from FIGS. 1, 2 and 7 to 9, in the first embodiment, the left and right wall side portions 4 of the U-shaped groove main body 2 are warped inwardly at the concave stripe portions 5 on the upper side. A part of the shape 5a ·· warps more inwardly at regular intervals with respect to the longitudinal direction of the U-shaped groove 1, and the flat wall side portion 5b · At the same time, the flat wall side portion 5b has a substantially L-shaped receiving concave portion 9 that can receive the end portion of the square angle member 7A as a bridging material receiving portion. Is provided. The angle of attachment of the angled angle member 7A is arbitrary, but when considering the strength against earth pressure on the upper part of the U-shaped groove side wall, the angled angle member 7A is attached so that the mountain side of the bent portion is up In this case, since the edge in the length direction of the angled angle member 7A does not face upward, it is safer for the operator. FIG. 7A shows a state viewed from the outside of the U-shaped groove body wall side portion 4 in which the square angle member 7A is fitted in the receiving recess 9, and FIG. 7B shows the same state in the wall side portion 4. It is the figure seen from the inner side (enlarged view of the round frame A part in Fig.7 (a)). The shape of the receiving recess 9 is substantially L-shaped so as to surround the shape of the cross-section of the end of the angle-angle member 7A so that the end of the angle-angle member 7A can be fitted and fixed. Is provided with an opening 9a. The opening 9a makes it easier to fit the square-angle member 7A, and facilitates removal when foreign matter such as earth and sand enters the receiving recess 9 during the installation of the U-shaped groove 1. As shown in FIGS. 1, 2, 8, and 9, the square angle member 7 </ b> A has U-shaped groove body wall side portions that are open at both ends of the U-shaped groove wall side portions 4 and 4 at both ends. 4 and 4 can be attached by simply fitting them into the receiving recesses 9 and 9, and fixing tools such as screws, bolts and nuts, and rivets are not required. Moreover, the bridging material receiving recess 9 on the U-shaped groove main body 2 side is a part of the structure of the U-shaped groove main body 2 and is formed at the same time as molding. There is no need for any components or fixtures for installation. Furthermore, since the bridging material in the U-shaped groove of the present invention is made of a hard synthetic resin or a fiber reinforced resin, unlike the conventional bridging material made of metal, the strength is reduced due to corrosion and the appearance is deteriorated. I won't let you. In addition, since the bridging material is used with the mountain side of the bent portion of the bridging material of the L-shaped square angle material facing upward, it is attached as in the case of using the conventional L-shaped bridging material. Since it does not protrude from the upper surface of the U-shaped groove later and a sharp portion is unlikely to occur, there is no fear that the operator will be injured by the protruding portion of the bridging material at the work site, and the appearance is clean. In the present embodiment, the example in which the bridging material 7A is the same resin as that of the U-shaped groove main body 2 is described. However, a hard synthetic resin or a fiber reinforced resin different from the U-shaped groove main body 2 may be used. In this way, the U-shaped groove 1 of the present invention is formed by horizontally mounting and fixing the angular angle 7A as the above-mentioned bridging material to the bridging material receiving recess 9 formed by forming the U-shaped groove. High rigidity can be obtained with respect to the earth pressure applied to both wall side portions 4 and 4 of the U-shaped groove main body 2, and deformation of the U-shaped groove main body 2 can be prevented.

図２に示すように、本実施例では端部をＵ字溝の壁側部４，４に設けられた架け渡し材受け部９に嵌め込む形式の架け渡し材である７Ａに加えて、他の架け渡し材として図１０に示す、Ｕ字溝本体２と同じ材質からなる樹脂製の断面略Ｌ字形の角アングル材７Ｂを併用することができる。図１及び図２並びに図４及び図５に示すように、この角アングル材７Ｂを使用する場合は、上述したようにＵ字溝本体２の両壁側部の上部において、凹条部
位５・・および凸条部位６・・の両壁側部４、４の上端はいずれも各々外方に延びて平坦な面部を形成するので、この部分を架け渡し材受け面８、８として角アングル材７Ｂをここに直接横架できる。そして、図１及び図２に示すように、左右の架け渡し材受け面８、８には凸条部位６・・の上方の位置に、長手方向に対して一定の間隔で孔８ａ・・が対となって穿設されている。図２、図１１及び図１２に示すように、この部分に角アングル材７Ｂを両壁側部４、４の間に横架するように取付けることができる。角アングル材７Ｂは図１０に示すように両端に穿設された孔７ｂ、７ｂをもち、該角アングル材７Ｂはこの２つの孔７ｂ、７ｂと、架け渡し材受け面の孔８ａ、８ａとを位置合せし、リベット１０で鋲着してＵ字溝本体の架け渡し材受け面８、８上に固定される。リベット１０は図１３に示す形状をもち、Ｕ字溝と同じ材質からなる樹脂製である。図１０（ｃ）に示すこのＬ字形角アングル材７Ｂの孔７ｂの無い面は、その両端部が切り欠かれており、孔７ｂのある面（図１０（ｂ））よりもその短く設計されている。従って、孔７ｂの無い面（図１０（ｃ））を下向きにＵ字溝本体２内に取り付けることができる。このため、角アングル材７ＢをＵ字溝本体２に取り付けた後、該角アングル材７ＢもＵ字溝１上面から突出しないので突出部によって作業者が負傷するというおそれはなく、見た目もきれいである。上記角アングル材７Ｂを上記架け渡し材７Ａと併用して横架することによって、本発明のＵ字溝１はＵ字溝本体２の両壁側部４、４にかかる土圧に対しさらに高い剛性を得ることができ、Ｕ字溝本体２の変形が防止できる。また、上述したように本実施例のＵ字溝１ではＵ字溝本体２自体に架け渡し材である角アングル材７Ｂを受ける部分を有しているので架け渡し材を使用するにあたって架け渡し材を配置するための他の補助部材を必要としない。また、この角アングル材７Ｂの固定にはリベット１０を使用しているため、ネジやボルト・ナット等による固定よりも作業が非常に簡便である。さらに、上記架け渡し材７Ａと同様に、架け渡し材である角アングル材７Ｂおよびリベット１０もＵ字溝本体２と同じ樹脂製であるため、従来のような金属製の架け渡し材とは異なり、腐食による強度の減少や外観の悪化が生じることはなく、またその材質上作業者を負傷させるおそれが減少する。なお本実施例では角アングル材７Ｂとリベット１０がＵ字溝本体２と同じ樹脂である例を述べたが、Ｕ字溝本体２と異なる硬質合成樹脂または繊維強化樹脂を使用してもよい。架け渡し材はまた、上記角アングル材７Ｂの形状の他に、固定用の孔を両端に設けた平板の形状のものも使用できる。 As shown in FIG. 2, in this embodiment, in addition to 7A, which is a bridging material in which the end portion is fitted into the bridging material receiving portion 9 provided on the wall side portions 4 and 4 of the U-shaped groove, As a bridge member, a square angle member 7B made of the same material as the U-shaped groove body 2 and having a substantially L-shaped cross section can be used in combination. As shown in FIGS. 1, 2, 4, and 5, when using the square angle member 7 </ b> B, as described above, in the upper part of the both side walls of the U-shaped groove body 2, the groove portions 5. Since the upper ends of both wall side portions 4 and 4 of the protruding portion 6. 7B can be mounted directly here. As shown in FIGS. 1 and 2, holes 8a,... Are formed on the left and right bridging material receiving surfaces 8, 8 at positions above the ridge portions 6,. It is drilled as a pair. As shown in FIGS. 2, 11, and 12, the square angle member 7 </ b> B can be attached to this portion so as to be laid across between the side walls 4, 4. As shown in FIG. 10, the square angle member 7B has holes 7b and 7b drilled at both ends. The square angle member 7B has two holes 7b and 7b and holes 8a and 8a on the bridging material receiving surface. Are fixed on the bridging material receiving surfaces 8 and 8 of the U-shaped groove main body. The rivet 10 has the shape shown in FIG. 13 and is made of resin made of the same material as the U-shaped groove. The surface without the hole 7b of this L-shaped square angle member 7B shown in FIG. 10 (c) is notched at both ends, and is designed to be shorter than the surface with the hole 7b (FIG. 10 (b)). ing. Accordingly, the surface without the hole 7b (FIG. 10C) can be mounted in the U-shaped groove body 2 downward. For this reason, after the angle angle material 7B is attached to the U-shaped groove body 2, the angle angle material 7B does not protrude from the upper surface of the U-shaped groove 1, so that there is no risk that the operator may be injured by the protruding portion, and the appearance is clean. is there. By horizontally using the square angle member 7B together with the bridging member 7A, the U-shaped groove 1 of the present invention is higher than the earth pressure applied to the both side portions 4, 4 of the U-shaped groove main body 2. Rigidity can be obtained and deformation of the U-shaped groove body 2 can be prevented. Further, as described above, the U-shaped groove 1 of the present embodiment has a portion for receiving the angular angle member 7B as the bridging material on the U-shaped groove body 2 itself, so that the bridging material is used when the bridging material is used. There is no need for other auxiliary members for the arrangement. In addition, since the rivet 10 is used to fix the square angle member 7B, the work is much simpler than fixing with screws, bolts, nuts, or the like. Further, similarly to the bridging material 7A, the angled angle material 7B and the rivet 10 which are bridging materials are also made of the same resin as the U-shaped groove body 2, so that they are different from conventional metallic bridging materials. In addition, there is no reduction in strength or deterioration in appearance due to corrosion, and the risk of injury to the worker due to the material is reduced. In the present embodiment, the example in which the square angle member 7B and the rivet 10 are made of the same resin as that of the U-shaped groove main body 2 is described. However, a hard synthetic resin or fiber reinforced resin different from the U-shaped groove main body 2 may be used. In addition to the shape of the angle and angle member 7B, the bridge member may be a flat plate having fixing holes at both ends.

さらに本実施例のＵ字溝本体２には、図１、図２及び図３等に示すように、左右の壁側部４、４のやや下部よりに、一定の間隔で、凹条部位５・・および凸条部位６・・にわたって外方に突出するリブ部１５・・が設けられており、Ｕ字溝本体２にさらに一層の剛性を与えている。このリブ部１５・・はまた、土中に埋設した場合にＵ字溝壁側部４，４よりも外側に突出するところの部分であり、ここに土砂が堆積しその荷重が負荷されるためＵ字溝本体２が浮上するのを防ぐ。なお、このＵ字溝本体２の一端部は、図２および図３に示すように、内壁の大きさが他の部分よりもやや大きく設計された外嵌接続部２ａとなっており、他端部を内嵌接続部２ｂとして他のＵ字溝本体２が接続できるように設計されている。２つのＵ字溝本体２を接続する場合、外嵌接続部２ａがリブ部１５を含めて内嵌接続部２ｂを被うように嵌合される。また、接続方法は、接続部の水漏れを最小にするため、水の流れ方向がＵ字溝本体２の内嵌接続部２ｂから他のＵ字溝本体２の外嵌接続部２ａに向かう方向となるように接続することが好ましい。   Further, the U-shaped groove body 2 of the present embodiment is provided with a concave portion 5 at a certain interval from the slightly lower portions of the left and right wall side portions 4, 4 as shown in FIGS. 1, 2 and 3. .. and rib portions 15 projecting outward are provided over the ridge portions 6... To give the U-shaped groove body 2 even more rigidity. This rib portion 15 is also a portion that protrudes outward from the U-shaped groove wall side portions 4 and 4 when buried in the soil, because sediment is accumulated and the load is applied thereto. The U-shaped groove body 2 is prevented from rising. As shown in FIGS. 2 and 3, one end portion of the U-shaped groove main body 2 is an outer fitting connection portion 2a whose inner wall is designed to be slightly larger than the other portion, and has the other end. It is designed so that the other U-shaped groove main body 2 can be connected by using the inner fitting connecting portion 2b as a part. When connecting two U-shaped groove main bodies 2, the outer fitting connection portion 2 a is fitted so as to cover the inner fitting connection portion 2 b including the rib portion 15. In addition, in the connection method, in order to minimize water leakage at the connecting portion, the direction of water flow is from the inner fitting connecting portion 2b of the U-shaped groove main body 2 toward the outer fitting connecting portion 2a of the other U-shaped groove main body 2. It is preferable to connect so that.

本実施例のＵ字溝１はさらに、剛性を高めるため、Ｕ字溝本体２と同じ材質である、図１４に示すような断面Ｌ字形の角アングル材である補強材２０を架け渡し材受け面８、８上に長手方向に沿って装着して使用することもできる。架け渡し材として角アングル材７Ｂを併用する場合には、補強材２０の孔２０ａのある面をＵ字溝本体２の両壁側部上端の架け渡し材受け面８、８上に装着し、その上に該角アングル材７Ｂを重ねて架け渡し材受け面８、８を架け渡し、該角アングル材７Ｂと補強材２０はそれらに設けられた孔７ｂ、７ｂと孔２０ａ、２０ａとを孔８ａ、８ａに位置合わせしてリベット１０により同時に鋲
着して固定することができる。本実施例におけるＵ字溝１では、さらにＵ字溝本体２の壁底部３の下側に地下水位の上昇によるＵ字溝の浮上を防止するための浮上防止材として図１５に示すようなＵ字溝本体２と同じ樹脂よりなる浮上防止角アングル材３０を取り付けることもできる。Ｕ字溝本体２の中央部分の壁底部３には図１６に示すように浮上防止材の両アングル面部を挟持する構造の浮上防止材支持溝部３１が設けられているので、浮上防止角アングル材３０を溝部３１にＵ字溝本体２の一方側から反対側にわたって挿通させ、Ｕ字溝本体２の両壁側部４、４よりも外方に突出するように取りつける。Ｕ字溝１の敷設時には、この浮上防止角アングル材３０の部分に堆積する土砂によって浮上防止効果をより高めることができる。上記補強材２０および浮上防止アングル材３０もまたＵ字溝本体２と異なる種々の硬質合成樹脂または繊維強化樹脂を使用できる。 In order to further increase the rigidity, the U-shaped groove 1 of this embodiment is provided with a reinforcing material 20 that is the same material as that of the U-shaped groove main body 2 and is an L-shaped square-angle material as shown in FIG. It can also be used by being mounted on the surfaces 8, 8 along the longitudinal direction. When using the square angle member 7B as a bridge material, the surface with the hole 20a of the reinforcing material 20 is mounted on the bridge material receiving surfaces 8, 8 at the upper ends of both side walls of the U-shaped groove body 2, The angled angle member 7B is overlaid on the bridging material receiving surfaces 8 and 8, and the angled angle material 7B and the reinforcing material 20 have holes 7b and 7b and holes 20a and 20a provided therein. 8a and 8a can be aligned and fixed by rivets 10 at the same time. In the U-shaped groove 1 in the present embodiment, the U-shaped groove as shown in FIG. 15 is used as an anti-floating material for preventing the U-shaped groove from rising due to the rise of the groundwater level below the wall bottom 3 of the U-shaped groove main body 2. A floating prevention angle member 30 made of the same resin as the character groove main body 2 can also be attached. As shown in FIG. 16, the wall bottom 3 at the center portion of the U-shaped groove main body 2 is provided with the anti-floating material support groove 31 having a structure for sandwiching both angle surfaces of the anti-floating material. 30 is inserted through the groove portion 31 from one side of the U-shaped groove main body 2 to the opposite side, and is attached so as to protrude outward from both wall side portions 4 and 4 of the U-shaped groove main body 2. At the time of laying the U-shaped groove 1, the floating prevention effect can be further enhanced by the earth and sand accumulated on the portion of the floating prevention angle angle member 30. The reinforcing member 20 and the anti-floating angle member 30 can also use various hard synthetic resins or fiber reinforced resins different from the U-shaped groove body 2.

実施例２
本実施例は、図１７および図１８に示すように、Ｕ字溝１において、架け渡し材として図２０に示す管材７Ｃを使用する場合を第二の態様として示す。図１７は本実施例のＵ字溝１の形状を説明する図であり、図１８は本実施例のＵ字溝１の平面図であり、図１９は、図１８に対応する側面図である。この第二の態様においてもまた、実施例１と同様にＵ字溝本体２は壁底部３から左右の壁側部４，４の上部に延びる凹条部位５・・および凸条部位６・・を交互に、Ｕ字溝１の長手方向に連続形成することにより波形に成形されており、また凹条部位５・・は左右の壁側部４、４の上部において、内方に反った形状５ａ・・をとる。しかし図１７、図２１及び図２２からも明らかなように本実施例では内方に反った形状５ａ・・の一部は、Ｕ字溝１の長手方向に対して一定の間隔で、架け渡し材である管材７Ｃが嵌合し得る突部１１ａ・・を左右の壁側部４、４上部で対になるように形成し、かつ前記各突部１１ａ・・の下側に嵌合された管材７Ｃを支持するための架け渡し材支持部１１ｂ・・を形成している。すなわち管材７Ｃのための架け渡し材受け部１１・・はこれら突部１１ａ・・と架け渡し材支持部１１ｂ・・により構成されるものである。本実施例では、図２０に示すようなＵ字溝本体２と同じ材質からなる中空の角形の管材７Ｃを使用するが、架け渡し材は他の形状の管材、筒材または両端部に差込み孔を形成する軸材等の形状であってよく、使用する架け渡し材の形状に合せて突部１１ａ・・および架け渡し材支持部１１ｂ・・の形状が設計される。本実施例の架け渡し材７ＣもまたＵ字溝本体２と異なる硬質合成樹脂または繊維強化樹脂を使用することもできる。図１７、図２１及び図２２に示すように、架け渡し材である図２０の樹脂製の管材７Ｃは、その両端部をＵ字溝壁側部４、４の両側を押し開くようにしてＵ字溝本体壁側部４、４の凹条部位５、５に形成された突部１１ａ、１１ａに嵌合させ、支持部１１ｂ、１１ｂに接するように両壁側部の間に横架させ固定する。さらに、本実施例では、図１７及び図２１に示すように、Ｕ字溝本体２において前記管材７Ｃは、突部１１ａに嵌合されたとき、その両端部が隣り合う凸条部位６・・と密接する構造に設計されているので、Ｕ字溝本体２への管材７Ｃは三方から支持されることとなり固定はより確実となる。架け渡し材としてこの管材７Ｃは、実施例１の角アングル材と同様に単なる嵌め込み作業により取り付けられるので、ネジやボルト・ナットならびにリベット等の固定具を必要とせずより迅速に進めることができる。なお、本実施例の場合にも図１８に示すように、実施例１と同様リベット１０で鋲着することにより取付ける第二の架け渡し材７Ｂを併用することも可能である。また、図１７ないし１９にも示すように本実施例２においても実施例１と同様にＵ字溝本体２の左右の壁側部４、４にリブ部１５を設けており、さらにまた、補強材２０を左右の壁側部上部の平坦な架け渡し材受け面８、８に取り付けることも、壁底部３に浮上防止材３０を取付けることもできる。このようにして、Ｕ字溝の成形によって形成される架け渡し材受け部１１に上記架け渡し材である管材７Ｃを横架することによって、本発明のＵ字溝１はＵ字溝本体２の両壁側部４、４にかかる土圧に対し高い剛性を得ることができ、Ｕ字溝本体２の変形が防止できる。 Example 2
In the present embodiment, as shown in FIGS. 17 and 18, the case where the pipe material 7 </ b> C shown in FIG. 20 is used as the bridging material in the U-shaped groove 1 is shown as a second mode. 17 is a view for explaining the shape of the U-shaped groove 1 of the present embodiment, FIG. 18 is a plan view of the U-shaped groove 1 of the present embodiment, and FIG. 19 is a side view corresponding to FIG. . Also in this second embodiment, the U-shaped groove main body 2 has a concave strip portion 5 extending from the wall bottom portion 3 to the upper portions of the left and right wall side portions 4 and 4 and a convex strip portion 6. Are alternately formed in the longitudinal direction of the U-shaped groove 1 and are formed into a corrugated shape, and the concave portions 5... Are warped inward at the upper portions of the left and right wall side portions 4 and 4. Take 5a ... However, as is apparent from FIGS. 17, 21 and 22, in this embodiment, a part of the shape 5a... Bent inward is bridged at a constant interval with respect to the longitudinal direction of the U-shaped groove 1. The projections 11a that can be fitted with the pipe material 7C are formed so as to be paired on the left and right wall side portions 4 and 4 and are fitted below the projections 11a. A bridging material support part 11b for supporting the pipe material 7C is formed. That is, the bridging material receiving portion 11 for the pipe material 7C is constituted by the projections 11a and the bridging material support portion 11b. In this embodiment, a hollow rectangular tube material 7C made of the same material as that of the U-shaped groove main body 2 as shown in FIG. 20 is used, but the bridge material is inserted into another shape of tube material, tubular material, or both ends. The shape of the projecting portion 11a... And the bridging material support portion 11b... Is designed according to the shape of the bridging material to be used. The bridging material 7C of the present embodiment can also use a hard synthetic resin or a fiber reinforced resin different from the U-shaped groove body 2. As shown in FIGS. 17, 21, and 22, the resin tubular material 7 </ b> C of FIG. 20 that is a bridging material has U ends so that both ends of the U-shaped groove wall side portions 4 and 4 are pushed open. Fit into the projections 11a and 11a formed on the concave strip portions 5 and 5 of the side wall portions 4 and 4 of the gutter body, and be fixed horizontally by being placed between the side walls so as to contact the support portions 11b and 11b. To do. Furthermore, in this embodiment, as shown in FIGS. 17 and 21, in the U-shaped groove main body 2, when the tube material 7C is fitted to the protrusion 11a, both ends thereof are adjacent to the protruding ridge portions 6. Since the tube material 7C to the U-shaped groove main body 2 is supported from three sides, the fixing becomes more reliable. Since this tube material 7C as a bridge member is attached by a simple fitting operation in the same manner as the square angle material of the first embodiment, it can be advanced more quickly without the need for fixing tools such as screws, bolts / nuts and rivets. In the case of this embodiment as well, as shown in FIG. 18, it is possible to use the second bridging material 7B attached by attaching with the rivet 10 as in the first embodiment. Also, as shown in FIGS. 17 to 19, in the second embodiment, rib portions 15 are provided on the left and right wall side portions 4, 4 of the U-shaped groove main body 2, as in the first embodiment. The material 20 can be attached to the flat bridging material receiving surfaces 8, 8 at the upper part of the left and right wall side portions, or the floating prevention material 30 can be attached to the wall bottom 3. In this way, the U-groove 1 of the present invention is formed by the U-groove body 2 by laying the tube material 7C, which is the bridging material, on the bridging material receiving portion 11 formed by forming the U-shaped groove. High rigidity can be obtained with respect to the earth pressure applied to both wall side portions 4 and 4, and deformation of the U-shaped groove body 2 can be prevented.

本発明のＵ字溝の第一の態様を説明する説明図である。It is explanatory drawing explaining the 1st aspect of the U-shaped groove | channel of this invention. 本発明のＵ字溝の第一の態様の平面図である。It is a top view of the 1st mode of the U-shaped groove of the present invention. 図２に示すＵ字溝の側面図である。It is a side view of the U-shaped groove shown in FIG. 図２のＡ−Ａ線で切断したＵ字溝本体の凸条部位の断面図である。It is sectional drawing of the protruding item | line part of the U-shaped groove main body cut | disconnected by the AA line of FIG. 図２のＢ−Ｂ線で切断したＵ字溝本体の凹条部位の断面図である。It is sectional drawing of the concave part of the U-shaped groove main body cut | disconnected by the BB line of FIG. 本発明の第一の態様の架け渡し材である角アングル材の正面図（ａ）および側面図（ｂ）である。It is the front view (a) and side view (b) of the angle angle material which are the bridging materials of the 1st aspect of this invention. 受け凹部に図６の角アングル材が嵌め込まれた状態をＵ字溝本体の壁側部外側から見た図（ａ）および同じ状態を壁側部内側から見た、丸枠Ａ部分の拡大図（ｂ）である。6A shows a state in which the angled angle member of FIG. 6 is fitted in the receiving recess when viewed from the outside of the U side of the U-shaped groove body, and an enlarged view of the round frame A portion when the same state is viewed from the inside of the wall side. (B). 図６に示す角アングル材をＵ字溝本体の受け凹部に嵌め込んだ状態を上方からみた部分図である。It is the fragmentary figure which looked at the state which inserted the angle angle material shown in FIG. 6 in the receiving recessed part of a U-shaped groove main body from upper direction. 図８のＣ−Ｃ線で切断した断面図である。It is sectional drawing cut | disconnected by CC line of FIG. 本発明の架け渡し材と併用する他の架け渡し材の例としての角アングル材の平面図（ａ）、正面図（ｂ）および側面図（ｃ）である。It is a top view (a), a front view (b), and a side view (c) of a square angle material as an example of another bridging material used together with the bridging material of the present invention. Ｕ字溝の架け渡し材受け面において図１０の角アングル材を使用した状態を上方からみた部分図である。It is the fragmentary figure which looked at the state which uses the angle angle material of FIG. 10 in the bridging material receiving surface of a U-shaped groove from the upper direction. 図１１のＤ−Ｄ線で切断した断面図である。It is sectional drawing cut | disconnected by the DD line | wire of FIG. 角アングル材を固定するためのリベットの平面図（ａ）および正面図（ｂ）である。It is the top view (a) and front view (b) of the rivet for fixing a square angle material. 架け渡し材受け面上にＵ字溝の長手方向に沿って装着される補強材の平面図（ａ）および正面図（ｂ）である。It is the top view (a) and front view (b) of the reinforcing material with which it installs along the longitudinal direction of a U-shaped groove | channel on a bridging material receiving surface. 浮上防止材としての角アングル材の平面図（ａ）および正面図（ｂ）である。It is the top view (a) and front view (b) of the angle angle material as a floating prevention material. Ｕ字溝本体壁底部において図１５の浮上防止角アングル材が挿通された状態を示す図である。It is a figure which shows the state by which the floating prevention angle angle material of FIG. 15 was penetrated in the U-shaped groove main body wall bottom part. 本発明のＵ字溝の第二の態様を説明する説明図である。It is explanatory drawing explaining the 2nd aspect of the U-shaped groove | channel of this invention. 本発明のＵ字溝の第二の態様の平面図である。It is a top view of the 2nd mode of the U-shaped groove of the present invention. 図１８に示すＵ字溝の側面図である。It is a side view of the U-shaped groove shown in FIG. 本発明の架け渡し材の第二の態様である管材の正面図（ａ）および側面図（ｂ）である。It is the front view (a) and side view (b) of the pipe material which are the 2nd aspect of the bridging material of this invention. 図２０に示す管材をＵ字溝本体の突部に嵌合した状態を上方からみた部分図である。It is the fragmentary view which looked at the state which fitted the pipe material shown in FIG. 20 to the protrusion of the U-shaped groove main body from upper direction. 図２１のＥ−Ｅ線で切断した断面図である。It is sectional drawing cut | disconnected by the EE line | wire of FIG.

符号の説明Explanation of symbols

１ Ｕ字溝 ２ Ｕ字溝本体 ３ 壁底部 ４ 壁側部 ５ 凹条部位
５ａ 内方に反った形状 ６ 凸条部位 ７Ａ 角アングル材 ７Ｂ 角アングル材
７Ｃ 管材 ８ 架け渡し材受け面 ９ 受け凹部 １０ リベット １１ａ 突部
１１ｂ 支持部 １５ リブ部 ２０ 補強材
DESCRIPTION OF SYMBOLS 1 U-shaped groove 2 U-shaped groove main body 3 Wall bottom part 4 Wall side part 5 Convex part 5a Inwardly curved shape 6 Convex part 7A Square angle material 7B Square angle material 7C Tube material 8 Crossing material receiving surface 9 Receiving recessed part 10 Rivet 11a Protruding part 11b Support part 15 Rib part 20 Reinforcing material

Claims (1)

断面Ｕ字形状の壁を形成するＵ字溝本体であって、該本体の壁底部から左右の壁側部の上部へと延びる凹条部位および凸条部位を交互に、Ｕ字溝の長手方向に連続形成することにより、波形に成形されたＵ字溝本体と、該本体の左右の壁側部の間に横架される架け渡し材とを備えてなる、Ｕ字溝であって、
前記架け渡し材は、平板、または平坦な上面を有しかつ側面の両端部が切り欠かれた角アングル材からなり、一方、
前記Ｕ字溝本体は、前記左右の壁側部の上端が各々外方に延びて、平坦な面をそれぞれ形成することにより、該架け渡し材の端部を支持することができる架け渡し材受け面を左右それぞれ有してなり、そして、
該架け渡し材受け面上で、硬質合成樹脂または繊維強化樹脂からなるリベットを用いて、前記架け渡し材は鋲着されることを特徴とする、硬質合成樹脂または繊維強化樹脂からなるＵ字溝。
A U-shaped groove main body that forms a U-shaped wall in cross-section, wherein the concave stripes and the convex stripes extending from the bottom of the wall to the upper part of the left and right wall sides are alternately arranged in the longitudinal direction of the U-shaped groove. A U-shaped groove comprising a U-shaped groove body formed into a corrugated shape and a bridging material that is laid across between the left and right wall sides of the main body,
The bridging material is a flat plate or a square angle material having a flat upper surface and notched at both ends of the side surface,
The U-shaped groove main body has a bridging material receiver that can support the end of the bridging material by forming the flat surfaces by extending the upper ends of the left and right wall side portions outward, respectively. Have left and right sides, and
A U-shaped groove made of a hard synthetic resin or a fiber reinforced resin, characterized in that the bridging material is glued on the connecting material receiving surface using a rivet made of a hard synthetic resin or a fiber reinforced resin. .
JP2004211975A 2004-07-20 2004-07-20 U-shaped groove Expired - Fee Related JP4811631B2 (en)

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US8672583B1 (en) 2009-06-05 2014-03-18 Stormtech Llc Corrugated stormwater chamber having sub-corrugations
US9255394B2 (en) 2009-06-05 2016-02-09 Stormtech Llc Corrugated stormwater chamber having sub-corrugations

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JPH0522676U (en) * 1991-08-30 1993-03-23 タキロン株式会社 U-shaped groove
JPH0634087U (en) * 1992-09-30 1994-05-06 タキロン株式会社 U-shaped groove member
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JP2003176565A (en) * 2001-12-11 2003-06-24 Toshio Kamata U-groove
JP2003206565A (en) * 2002-01-15 2003-07-25 Toshio Kamata Reinforcing frame for u-shaped groove

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JPS5927280U (en) * 1982-08-10 1984-02-20 タキロン株式会社 Synthetic resin U-shaped groove
JPH02106081U (en) * 1989-02-10 1990-08-23
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JPH0634087U (en) * 1992-09-30 1994-05-06 タキロン株式会社 U-shaped groove member
JPH0942248A (en) * 1995-07-28 1997-02-10 Sekisui Chem Co Ltd Rivet made of fiber-reinforced resin
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JP2003206565A (en) * 2002-01-15 2003-07-25 Toshio Kamata Reinforcing frame for u-shaped groove

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8672583B1 (en) 2009-06-05 2014-03-18 Stormtech Llc Corrugated stormwater chamber having sub-corrugations
US9255394B2 (en) 2009-06-05 2016-02-09 Stormtech Llc Corrugated stormwater chamber having sub-corrugations
US9556576B2 (en) 2009-06-05 2017-01-31 Stormtech Llc Corrugated stormwater chamber having sub-corrugations
US9637907B2 (en) 2009-06-05 2017-05-02 Stormtech Llc Corrugated stormwater chamber having sub-corrugations
US9885171B2 (en) 2009-06-05 2018-02-06 Stormtech Llc Corrugated stormwater chamber having sub-corrugations
US10253490B2 (en) 2009-06-05 2019-04-09 Stormtech Llc Corrugated stormwater chamber having sub-corrugations
US11242677B2 (en) 2009-06-05 2022-02-08 Stormtech Llc Corrugated stormwater chamber having sub-corrugations

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