JP5618428B2

JP5618428B2 - Drainage structure

Info

Publication number: JP5618428B2
Application number: JP2012182385A
Authority: JP
Inventors: 徳恭片岡
Original assignee: 片岡産業株式会社
Priority date: 2011-08-25
Filing date: 2012-08-21
Publication date: 2014-11-05
Anticipated expiration: 2032-08-21
Also published as: JP2013060804A

Description

本発明は、車道と歩道との境界部、あるいは歩道に沿って設置される排水溝構造、とくに、集水開口の幅が狭い幅狭型の排水溝構造に関する。 The present invention relates to a drainage groove structure installed along a boundary between a roadway and a sidewalk or along a sidewalk, and more particularly, to a narrow drainage groove structure with a narrow water collection opening.

幅狭型の排水溝構造は、例えば特許文献１から４に公知である。特許文献１の路面用排水溝は、上部に開口を有する断面略コ字状の樋本体と、樋本体の開口に装着される蓋部材とで構成されている。特許文献２の路面用排水流路製品は、流路本体とグレーチングとを含んで構成されている。流路本体は断面略Ｕ字形状のプレス成形品からなり、両側壁の上縁からグレーチングの厚み分だけ下方に下がった位置に設けた一対の突出部で、グレーチングを支持している。特許文献３の蓋付き排水溝は、底面と左右の側板からなる側溝部と、側溝部に装着した蓋とで構成されている。蓋は、その下縁が所要間隔置きに左右側板に固定したロッドで支持されている。 A narrow drainage groove structure is known from Patent Documents 1 to 4, for example. The drainage groove for road surface of patent document 1 is comprised by the cross-sectional substantially U-shaped ridge body which has an opening in the upper part, and the cover member with which the opening of a ridge body is equipped. The road surface drainage channel product of Patent Document 2 includes a channel body and a grating. The flow path body is made of a press-molded product having a substantially U-shaped cross section, and the grating is supported by a pair of protrusions provided at positions lowering from the upper edges of both side walls by the thickness of the grating. The drainage groove with a lid of Patent Document 3 is composed of a side groove portion including a bottom surface and left and right side plates, and a lid attached to the side groove portion. The lid is supported by rods whose lower edges are fixed to the left and right side plates at required intervals.

特許文献４のグレーチング装置は、グレーチング本体と受枠とをボルトで締結固定している。詳しくは、断面がＬ字状の一対の枠部材からなる受枠と、受枠内に収容されてその排水溝の上部の開口部を覆うグレーチング本体と、これら両者を締結する締結具とで、グレーチング装置を構成している。受枠の各側壁部の内面には、長手方向に沿って延びる受材が互いに対向するように取り付けてある。締結具は受材の下面側に係止される固定部材（雌ねじ体）とボルトとからなり、グレーチング本体に挿通したボルトを固定部材にねじ込むことにより、グレーチング本体が受材に締結固定される。 In the grating device of Patent Document 4, the grating main body and the receiving frame are fastened and fixed with bolts. Specifically, the grating device includes a receiving frame formed of a pair of frame members having an L-shaped cross section, a grating main body that is accommodated in the receiving frame and covers an opening at the top of the drainage groove, and a fastener that fastens both of them. Is configured. On the inner surface of each side wall portion of the receiving frame, receiving materials extending along the longitudinal direction are attached so as to face each other. The fastener includes a fixing member (female screw body) locked to the lower surface side of the receiving material and a bolt, and the bolting body inserted into the fixing member is screwed into the fixing member, whereby the grating main body is fastened and fixed to the receiving material.

特許第３９３０８３９号公報（段落番号００１４、００１８、００１９、図３）Japanese Patent No. 3930839 (paragraph numbers 0014, 0018, 0019, FIG. 3) 特開２００３-３１３９３３号公報（段落番号０００９〜００１１、図４）JP 2003-313933 A (paragraph numbers 0009 to 0011, FIG. 4) 特開２００４−４４０８１号公報（段落番号０００８、図３）Japanese Patent Laying-Open No. 2004-44081 (paragraph number 0008, FIG. 3) 特開２００５−３００４２号公報（段落番号００１４〜００１７、００３０、図６、図７）Japanese Patent Laying-Open No. 2005-30042 (paragraph numbers 0014 to 0017, 0030, FIGS. 6 and 7)

幅狭型の排水溝構造は、通水路に堆積したごみおよび小石等を取り除くなどの管理作業のために、定期的に点検および清掃が行われる。こうした管理作業を行う際には、蓋部材を樋本体から取り外して通水路を開放するが、特許文献１の路面用排水溝では、蓋部材の一対の壁部の高さを、樋本体の一対の壁面部と概ね同じ高さに設定するので、蓋部材の重量が重い。そのため、蓋部材の取り外し、あるいは再装着作業を簡便に行えない。また、蓋部材の壁部は樋本体の下面部と当接しているため、樋本体の壁面部と、蓋部材の壁部との隙間に詰まったごみおよび小石等が通水路へ流下しにくい。さらに、隙間に詰まったごみおよび小石等が固着し、清掃時に蓋部材を取り外せなくなる不具合がある。 The narrow drainage groove structure is regularly inspected and cleaned for management work such as removing dirt and pebbles accumulated in the waterway. When performing such management work, the lid member is removed from the main body of the fence and the water passage is opened. However, in the drainage groove for road surface of Patent Document 1, the height of the pair of wall portions of the lid member is set to the pair of the main body of the main body. The lid member is heavy because it is set to approximately the same height as the wall surface portion. Therefore, the removal or remounting operation of the lid member cannot be performed easily. Further, since the wall portion of the lid member is in contact with the lower surface portion of the cocoon body, dust, pebbles and the like clogged in the gap between the wall surface portion of the cocoon body and the wall portion of the lid member are unlikely to flow down to the water passage. Furthermore, there is a problem that dust, pebbles and the like clogged in the gap stick, and the lid member cannot be removed during cleaning.

特許文献２の排水流路製品では、側壁の上縁からグレーチングの厚み分だけ下方に下がった位置に設けられた突出部でグレーチングを支持するので、グレーチングの高さを小さくでき、全体重量を軽くできる。しかし、突出部が長さ方向に連続した状態で設けてあるので、グレーチングと側壁との隙間にごみおよび小石等が詰まりやすく、特許文献１の蓋部材と同様に、グレーチングが取り外せなくなる不具合がある。また、外力を受けてグレーチング、流路本体あるいは突出部が変形すると、グレーチングを適正に支持できなくなり、グレーチングが通水路内に落下するおそれがある。 In the drainage channel product of Patent Document 2, since the grating is supported by the protruding portion provided at a position lowering from the upper edge of the side wall by the thickness of the grating, the height of the grating can be reduced and the overall weight is reduced. it can. However, since the projecting portion is provided in a continuous state in the length direction, dust and pebbles are easily clogged in the gap between the grating and the side wall, and there is a problem that the grating cannot be removed like the lid member of Patent Document 1. . Further, when the grating, the flow path main body, or the protruding portion is deformed by receiving an external force, the grating cannot be properly supported, and the grating may fall into the water passage.

特許文献３の蓋付き排水溝における蓋は、所要間隔置きに左右側板にわたって固定されたロッドで支持するので、蓋と側板との隙間にごみおよび小石等が詰まることはない。しかし、ほうきで通水路を清掃する際に、ロッド部分が邪魔になって連続して掃き進めることができず、清掃に多くの手間を要する。 Since the lid in the drainage groove with a lid of Patent Document 3 is supported by a rod fixed across the left and right side plates at a required interval, dust, pebbles and the like are not clogged in the gap between the lid and the side plates. However, when the water passage is cleaned with a broom, the rod portion becomes an obstacle and cannot be continuously swept away, which requires a lot of labor for cleaning.

特許文献４のグレーチング装置では、グレーチング本体の下面に設けた支持部材を受材で支持するので、グレーチング本体と側壁部との隙間にごみおよび小石等が詰まることはない。しかし、締結具を構成する固定部材は、固定位置を保持する構成を備えていないので、車両通過時の振動等によりボルトが緩むと固定部材が回転し、固定部材の先端が受材から外れるおそれがある。また、固定部材の先端が受材から外れると、車両等の通過によりグレーチングが跳ね上がり、事故を発生するおそれがある。 In the grating device of Patent Document 4, since the support member provided on the lower surface of the grating main body is supported by the receiving material, the gap between the grating main body and the side wall portion is not clogged with dust and pebbles. However, since the fixing member constituting the fastener does not have a structure for holding the fixing position, if the bolt is loosened due to vibration or the like when passing through the vehicle, the fixing member may rotate, and the tip of the fixing member may be detached from the receiving material. There is. Further, if the tip of the fixing member is detached from the receiving material, the grating jumps up due to the passage of the vehicle or the like, which may cause an accident.

本発明の目的は、溝蓋と受枠との隙間にごみおよび小石等が詰まって固着するのを解消でき、さらに、ほうき等による通水路の清掃を簡便に行える排水溝構造を提供することにある。
本発明の目的は、溝蓋を固定するボルトが緩んだとしても、溝蓋の跳ね上がりを確実に防止でき、さらに、外力を受けて溝蓋あるいは受枠が変形した場合でも、溝蓋が通水路内に落下するのを確実に阻止できる、安全性に優れた排水溝構造を提供することにある。
本発明の目的は、溝蓋を受枠の締結位置に簡単に配置できるようにして、溝蓋の受枠に対する一連の組付作業を容易にしかも的確に行うことができる排水溝構造を提供することにある。 An object of the present invention is to provide a drainage groove structure that can eliminate clogging and adhering dust and pebbles in a gap between a groove lid and a receiving frame, and that can easily clean a water passage using a broom or the like. .
The object of the present invention is to reliably prevent the groove cover from jumping up even if the bolt for fixing the groove cover is loosened. Further, even if the groove cover or the receiving frame is deformed due to an external force, the groove cover remains in the water passage. An object of the present invention is to provide a drainage groove structure excellent in safety that can surely prevent falling.
SUMMARY OF THE INVENTION An object of the present invention is to provide a drainage groove structure capable of easily and accurately performing a series of assembling operations on the receiving frame of the groove lid by allowing the groove lid to be easily arranged at the fastening position of the receiving frame. is there.

本発明は、路面舗装１に埋設される受枠２と、受枠２の上開口を覆う溝蓋３とを備えている幅狭型の排水溝構造を対象とする。受枠２は、底部材２０と、左右一対の側壁２１・２１と、両側壁２１・２１の対向面の長手方向に沿って断続的に固定されて、溝蓋３を支持する左右一対ずつの支持体２２・２２とで構成する。支持体２２は、側壁２１に固定されるベース壁２８と、ベース壁２８の上縁から溝中央へ向かって突出されて溝蓋３を支持する第１支持板２９と、ベース壁２８の下側から溝中央へ向かって突出する第２支持板３０とを含んで構成する。溝蓋３の前後方向の複数箇所に、溝蓋３を支持体２２に締結する締結構造１０を設ける。締結構造１０は、溝蓋３に設けられる締結ベース１１と、対向する一対の第１支持板２９の下面に掛止される締結プレート１２と、締結ベース１１と締結プレート１２とを締結するねじ構造１３とを含む。締結プレート１２は、一対の支持体２２・２２に対して前後方向へ出入れは自在に、しかし、一対の支持体２２・２２のベース壁２８・２８の間で回転は不能な長さに設定する。そして、溝蓋３と締結プレート１２とを、第１支持板２９を上下に挟持する状態でねじ構造１３で締結する。溝蓋３に、締結プレート１２の周縁を受止めて、同プレート１２をその長手方向が支持体２２の前後方向と交差する挿入姿勢に保持するプレート保持体４９を設ける。 The present invention is directed to a narrow drainage groove structure including a receiving frame 2 embedded in a road pavement 1 and a groove lid 3 that covers an upper opening of the receiving frame 2. The receiving frame 2 is fixed intermittently along the longitudinal direction of the opposing surface of the bottom member 20, the pair of left and right side walls 21, 21 and the side walls 21, 21, and supports the pair of left and right sides that support the groove lid 3. It consists of bodies 22 and 22. The support 22 includes a base wall 28 fixed to the side wall 21, a first support plate 29 that protrudes from the upper edge of the base wall 28 toward the center of the groove and supports the groove lid 3, and a lower side of the base wall 28. And a second support plate 30 protruding toward the center of the groove. Fastening structures 10 for fastening the groove lid 3 to the support 22 are provided at a plurality of locations in the front-rear direction of the groove lid 3. The fastening structure 10 includes a fastening base 11 provided in the groove lid 3, a fastening plate 12 that is hooked on the lower surfaces of a pair of opposing first support plates 29, and a screw structure that fastens the fastening base 11 and the fastening plate 12. 13 and so on. The fastening plate 12 can be freely inserted into and removed from the pair of supports 22 and 22 in the front-rear direction, but is set to a length that cannot be rotated between the base walls 28 and 28 of the pair of supports 22 and 22. To do. Then, the groove lid 3 and the fastening plate 12 are fastened by the screw structure 13 with the first support plate 29 sandwiched up and down. The groove lid 3 is provided with a plate holder 49 that receives the periphery of the fastening plate 12 and holds the plate 12 in an insertion posture in which the longitudinal direction intersects the front-rear direction of the support 22.

ベース壁２８の前後端のいずれか一方に、第１支持板２９の下面および突端面と面一になる周縁部を備えた補強壁３１を、ベース壁２８と一体に形成する。 A reinforcing wall 31 having a peripheral portion that is flush with the lower surface and the protruding end surface of the first support plate 29 is formed integrally with the base wall 28 at either the front or rear end of the base wall 28.

第１支持板２９の突端に、溝蓋３が受枠２の通水路３５へ落下するのを規制する支持壁３２を、上向きに突設する。 A support wall 32 that restricts the drop of the groove lid 3 to the water passage 35 of the receiving frame 2 is provided at the protruding end of the first support plate 29 so as to protrude upward.

支持体２２の第２支持板３０の前後いずれか一方の端部に補強壁３１を設け、第２支持板３０の他方の端部に連続して前後方向へ延びるプレート案内板４６を設ける。溝蓋３を支持体２２に仮組みする過程で、締結プレート１２をプレート案内板４６で受止めた状態で、溝蓋３を支持体２２へ向かってスライド移動させて仮組みできるようにする。プレート案内板４６は、支持体２２と一体化して設ける、または、支持体２２とは別体で受枠２に設けることができる。ここでいう「端部に連続」とは、第２支持板３０とプレート案内板４６が面一で一体化してある場合、両者が一体でプレート案内板４６が支持体２２へ向かって傾斜している場合、両者が別体で小さな隙間を介して隣接している場合などを含む。 A reinforcing wall 31 is provided at one of the front and rear ends of the second support plate 30 of the support 22, and a plate guide plate 46 extending in the front-rear direction is provided at the other end of the second support plate 30. In the process of temporarily assembling the groove cover 3 to the support body 22, the groove cover 3 is slid toward the support body 22 in a state where the fastening plate 12 is received by the plate guide plate 46 so as to be temporarily assembled. The plate guide plate 46 can be provided integrally with the support 22 or can be provided on the receiving frame 2 separately from the support 22. Here, “continuous at the end” means that when the second support plate 30 and the plate guide plate 46 are integrated with each other, they are integrated and the plate guide plate 46 is inclined toward the support 22. The case where the two are separate and adjacent to each other through a small gap.

締結プレート１２の両端の隅部分に、ベース壁２８に対する引っ掛かりを防止する挿入ガイド部４７を形成する。 Insertion guide portions 47 that prevent the base wall 28 from being caught are formed at the corners at both ends of the fastening plate 12.

路面舗装１を透水性舗装１Ａで構成し、受枠２の透水性舗装１Ａに臨む側の側壁２１に複数の通水孔２３を形成する。 The road pavement 1 is composed of a water-permeable pavement 1A, and a plurality of water passage holes 23 are formed in the side wall 21 of the receiving frame 2 facing the water-permeable pavement 1A.

受枠２を金属板材にプレス加工を施して形成し、底部材２０と左右一対の側壁２１・２１とを一体に設ける。 The receiving frame 2 is formed by pressing a metal plate material, and the bottom member 20 and the pair of left and right side walls 21 and 21 are integrally provided.

受枠２の底部材２０をコンクリートで成形された成形側溝５０で構成し、成形側溝５０の上面に左右一対の側壁２１・２１を設ける。 The bottom member 20 of the receiving frame 2 is constituted by a molding side groove 50 formed of concrete, and a pair of left and right side walls 21 and 21 are provided on the upper surface of the molding side groove 50.

本発明に係る排水溝構造は、受枠２の左右一対の側壁２１・２１の対向面の長手方向に沿って、左右一対の支持体２２・２２を断続的に固定し、これらの支持体２２で溝蓋３を支持して、受枠２の上開口を覆うようにした。このように、溝蓋３を受枠２の開口近傍で支持すると、溝蓋３を底部材２０で支持する場合に比べて、溝蓋３の厚み寸法を小さくして、重量を小さくすることができる。したがって、清掃時の溝蓋３の取り外し、あるいは再装着作業を軽快かつ簡便に行える。また、支持体２２を断続的に設けるので、溝蓋３と受枠２との隙間に詰まったごみおよび小石等は、支持体２２の前後端部から通水路３５へと流下できる。したがって、隙間内でごみおよび小石等が固着することを解消でき、溝蓋３が取り外せなくなることを防止できる。さらに、支持体２２を左右に分離した状態で設けてあるので、通水路３５の清掃時に支持体２２が邪魔にならず、ごみおよび小石等をほうき等で連続して掃き進めることができ、清掃の手間を軽減できる。 The drainage groove structure according to the present invention intermittently fixes the pair of left and right supports 22 and 22 along the longitudinal direction of the opposing surfaces of the pair of left and right side walls 21 and 21 of the receiving frame 2. The groove lid 3 was supported so as to cover the upper opening of the receiving frame 2. As described above, when the groove lid 3 is supported in the vicinity of the opening of the receiving frame 2, the thickness dimension of the groove lid 3 can be reduced and the weight can be reduced as compared with the case where the groove lid 3 is supported by the bottom member 20. . Therefore, the removal or remounting operation of the groove lid 3 at the time of cleaning can be performed lightly and simply. Further, since the support body 22 is provided intermittently, dust, pebbles and the like clogged in the gap between the groove lid 3 and the receiving frame 2 can flow down from the front and rear ends of the support body 22 to the water passage 35. Therefore, it is possible to eliminate the sticking of dust, pebbles and the like in the gap, and it is possible to prevent the groove lid 3 from being removed. Furthermore, since the support body 22 is provided in a state where it is separated into left and right, the support body 22 does not get in the way when the water passage 35 is cleaned, and dust and pebbles can be continuously swept away with a broom or the like. Can be saved.

加えて、ベース壁２８と、ベース壁２８の上縁に設けた第１支持板２９、および下側に設けた第２支持板３０とを含んで支持体２２を構成するので、大きな外力を受けて第１支持板２９が変形した場合でも、その下方に設けた第２支持板３０で溝蓋３を受止めることができる。これにより、溝蓋３が支持体２２から外れて通水路３５内に落下することを阻止でき、人の足あるいは車両の車輪等が通水路３５に落ち込む等の事故の発生を防止できる、安全性に優れた排水溝構造とすることができる。 In addition, since the support 22 includes the base wall 28, the first support plate 29 provided on the upper edge of the base wall 28, and the second support plate 30 provided on the lower side, a large external force is received. Even when the first support plate 29 is deformed, the groove cover 3 can be received by the second support plate 30 provided below the first support plate 29. Thereby, it can prevent that the groove cover 3 remove | deviates from the support body 22, and falls in the water flow path 35, and can prevent generation | occurrence | production of accidents, such as a person's foot | leg or a vehicle wheel falling into the water flow path 35, etc. The drainage groove structure is excellent.

ベース壁２８の前後端のいずれか一方に補強壁３１を一体に形成すると、第１支持板２９が変形した場合でも、補強壁３１で溝蓋３を支持することができる。したがって、第１支持板２９が大きく変形することがなく、溝蓋３が通水路３５内に落下することをさらに確実に阻止でき、事故の発生を防止できる安全性に優れた排水溝構造とすることができる。 When the reinforcing wall 31 is integrally formed on either the front or rear end of the base wall 28, the groove lid 3 can be supported by the reinforcing wall 31 even when the first support plate 29 is deformed. Therefore, the first support plate 29 is not greatly deformed, and it is possible to more reliably prevent the groove lid 3 from falling into the water passage 35 and to have a drainage groove structure excellent in safety that can prevent the occurrence of an accident. be able to.

第１支持板２９の突端に支持壁３２を上向きに突設すると、例えば受枠２に固定されていない溝蓋３上を人または車両が通過し、溝蓋３が支持体２２から少し浮き上がった状態になっても、溝蓋３が支持壁３２を乗越えない限り、通水路３５内に落下することがない。したがって、溝蓋３が通水路３５内に落下するのを確実に阻止できる、事故の発生を防止できる安全性に優れた排水溝構造とすることができる。 When the support wall 32 protrudes upward at the protruding end of the first support plate 29, for example, a person or vehicle passes over the groove lid 3 that is not fixed to the receiving frame 2, and the groove lid 3 is slightly lifted from the support body 22. Even if it becomes, unless the groove cover 3 gets over the support wall 32, it does not fall into the water passage 35. Therefore, it is possible to provide a drainage groove structure excellent in safety that can reliably prevent the groove lid 3 from falling into the water passage 35 and can prevent the occurrence of an accident.

溝蓋３側の締結ベース１１と、締結プレート１２と、これら両者３・１２を締結するねじ構造１３などで締結構造１０を構成し、第１支持板２９の下面に掛止した締結プレート１２と締結ベース１１とをねじ構造１３で締結した。この締結構造１０では、締結プレート１２の長さが、前後方向へ出入れは自在に、しかし、一対のベース壁２８・２８の間で回転は不能な長さに設定してある。したがって、ねじ構造１３を締め付ける際に締結プレート１２が回転するのを確実に防止して、溝蓋３の受枠２に対する締結作業を容易にしかも的確に行うことができる。 The fastening base 11 on the groove lid 3 side, the fastening plate 12, the screw structure 13 that fastens both 3 and 12, etc. constitute the fastening structure 10, and the fastening plate 12 that is hooked on the lower surface of the first support plate 29, The fastening base 11 was fastened with a screw structure 13. In this fastening structure 10, the length of the fastening plate 12 is set so that it can be freely inserted and removed in the front-rear direction, but cannot be rotated between the pair of base walls 28 and 28. Therefore, the fastening plate 12 can be reliably prevented from rotating when the screw structure 13 is tightened, and the fastening operation of the groove lid 3 to the receiving frame 2 can be easily and accurately performed.

締結構造１０は、溝蓋３上を通過する人あるいは車両の振動により、ねじ構造１３が緩む場合があるが、締結プレート１２をベース壁２８の間で回転不能に設けたので、締結プレート１２が回転して第１支持板２９の下面から外れることがなく、ねじ構造１３が分離しない限り、溝蓋３と受枠２との締結状態を維持できる。したがって、溝蓋３の跳ね上がり、あるいは通水路３５内への落下を確実に阻止できる、安全性に優れた排水溝構造とすることができる。 In the fastening structure 10, the screw structure 13 may loosen due to vibrations of a person or vehicle passing over the groove lid 3, but the fastening plate 12 is provided so as not to rotate between the base walls 28. As long as the screw structure 13 does not separate from the lower surface of the first support plate 29 by rotating, the fastening state between the groove lid 3 and the receiving frame 2 can be maintained. Therefore, it is possible to provide a drainage groove structure excellent in safety that can reliably prevent the groove lid 3 from jumping or falling into the water passage 35.

本発明に係る締結構造１０は、ねじ構造１３で締結プレート１２を締結する構成であるので、溝蓋３に仮組みした状態の締結プレート１２は、ねじ軸心廻りに自由に回動することができる。そのため、溝蓋３を支持体２２に仮組みする過程では、締結プレート１２を回動操作して適正な挿入姿勢に調整する必要がある。しかし、溝蓋３にプレート保持体４９を設けると、溝蓋３に仮組みした締結プレート１２を、プレート保持体４９で受止めて適正な挿入姿勢に保持できる。つまり、締結プレート１２を溝蓋３に仮組みした時点で、締結プレート１２の姿勢をプレート保持体４９で適正な挿入姿勢に保持できる。さらに、溝蓋３を支持体２２に仮組みする際に、締結プレート１２の姿勢が大きくずれ動くこともない。したがって、溝蓋３の受枠２に対する仮組み作業を容易にしかも的確に行うことができる。 Since the fastening structure 10 according to the present invention is configured to fasten the fastening plate 12 with the screw structure 13, the fastening plate 12 temporarily assembled to the groove lid 3 can freely rotate about the screw shaft center. it can. Therefore, in the process of temporarily assembling the groove lid 3 to the support body 22, it is necessary to rotate the fastening plate 12 and adjust it to an appropriate insertion posture. However, when the plate holder 49 is provided in the groove lid 3, the fastening plate 12 temporarily assembled in the groove lid 3 can be received by the plate holder 49 and held in an appropriate insertion posture. That is, when the fastening plate 12 is temporarily assembled to the groove lid 3, the posture of the fastening plate 12 can be held in an appropriate insertion posture by the plate holder 49. Further, when the groove lid 3 is temporarily assembled to the support 22, the posture of the fastening plate 12 does not move greatly. Therefore, the temporary assembly work of the groove lid 3 with respect to the receiving frame 2 can be easily and accurately performed.

また、図２０に示すように、縞鋼板で形成された溝蓋３Ａ（３）を設置する場合には、溝蓋３Ａを受枠２に仮組みするとき、溝蓋３Ａの下面に位置する締結プレート１２の姿勢を上方から目視することができない。しかし、上記のように、プレート保持体４９で締結プレート１２を適正な挿入姿勢に保持すると、先のような状況であっても、締結プレート１２を支持体２２に対して適正に組付けることができる。 As shown in FIG. 20, when installing the groove lid 3 </ b> A (3) formed of a striped steel plate, when the groove lid 3 </ b> A is temporarily assembled to the receiving frame 2, the fastening plate positioned on the lower surface of the groove lid 3 </ b> A. The 12 postures cannot be seen from above. However, as described above, when the fastening plate 12 is held in the proper insertion posture by the plate holding body 49, the fastening plate 12 can be properly assembled to the support body 22 even in the above situation. it can.

支持体２２または受枠２のいずれか一方にプレート案内板４６を設けると、溝蓋３を支持体２２に仮組みする過程で、締結プレート１２をプレート案内板４６で受止めて仮位置決めできる。したがって、以後は、溝蓋３を支持体２２へ向かってスライド移動させるだけで、溝蓋３を支持体２２に対して簡単に仮組みでき、全体として、仮組み、位置決め、締結などの溝蓋３の受枠２に対する一連の組付作業を容易にしかも的確に行なうことができる。 If the plate guide plate 46 is provided on either the support 22 or the receiving frame 2, the fastening plate 12 can be received by the plate guide plate 46 and temporarily positioned in the process of temporarily assembling the groove lid 3 to the support 22. Therefore, after that, the groove lid 3 can be simply temporarily assembled with respect to the support 22 simply by sliding the groove lid 3 toward the support 22, and as a whole, the groove lid for temporary assembly, positioning, fastening, etc. A series of assembling operations for the three receiving frames 2 can be easily and accurately performed.

締結プレート１２の両端の隅部分に挿入ガイド部４７を形成すると、締結プレート１２を一対の支持体２２・２２に挿入する際に、締結プレート１２がベース壁２８に引っ掛かるのを防止できる。したがって、締結プレート１２の支持体２２への仮組みをスムーズに行って、溝蓋３の受枠２に対する一連の組付作業をさらに容易にしかもさらに的確に行なうことができる。 When the insertion guide portions 47 are formed at the corners at both ends of the fastening plate 12, the fastening plate 12 can be prevented from being caught by the base wall 28 when the fastening plate 12 is inserted into the pair of support bodies 22. Therefore, the temporary assembly of the fastening plate 12 to the support 22 can be performed smoothly, and a series of assembly operations of the groove lid 3 with respect to the receiving frame 2 can be performed more easily and more accurately.

受枠２の透水性舗装１Ａに臨む側の側壁２１に複数の通水孔２３を形成すると、受枠２の上開口からに加えて、透水性舗装１Ａ内に吸収された水も通水路３５内に取り込むことができる。したがって、透水性舗装１Ａの排水性を向上させることができ、路面舗装１上に水が溜るのを防止できる。 When a plurality of water passage holes 23 are formed in the side wall 21 of the receiving frame 2 facing the water-permeable pavement 1A, water absorbed in the water-permeable pavement 1A is also introduced into the water passage 35 in addition to the upper opening of the receiving frame 2. Can be captured. Therefore, the drainage of the water-permeable pavement 1A can be improved, and water can be prevented from collecting on the road pavement 1.

金属板材にプレス加工を施して受枠２を形成し、底部材２０と左右一対の側壁２１・２１とを一体に設けるようにすると、金属板材を曲げ加工するだけで受枠２を製造することができ、受枠２の製造コストを抑えることができる。 If the metal plate material is pressed to form the receiving frame 2 and the bottom member 20 and the pair of left and right side walls 21 and 21 are provided integrally, the receiving frame 2 can be manufactured simply by bending the metal plate material. The manufacturing cost of the receiving frame 2 can be suppressed.

受枠２の底部材２０をコンクリートで成形された成形側溝５０で構成し、成形側溝５０の上面に左右一対の側壁２１・２１を設けると、受枠２の流路断面を大きくすることができ、比較的水量の多い場所にでも幅狭型の排水溝構造を適用することができる。 If the bottom member 20 of the receiving frame 2 is constituted by a molding side groove 50 formed of concrete and a pair of left and right side walls 21 and 21 are provided on the upper surface of the molding side groove 50, the cross section of the channel of the receiving frame 2 can be enlarged. A narrow drainage groove structure can be applied even in locations with a large amount of target water.

弾性を有する金属クリップＣで溝蓋３を一方の側壁２１に押し付けて、溝蓋３を受枠２に固定すると、幅狭型の排水溝構造を、例えば地下駐車場の壁面沿いなどの、人および車両が通行しないような場所に設置する場合に、溝蓋３を受枠２に簡単に固定することができる。 When the groove cover 3 is pressed against one side wall 21 with the elastic metal clip C and the groove cover 3 is fixed to the receiving frame 2, a narrow drainage groove structure, for example, along the wall of an underground parking lot, When installing in a place where the vehicle does not pass, the groove lid 3 can be easily fixed to the receiving frame 2.

本発明の参考例１に係る排水溝構造の縦断正面図である。It is a vertical front view of the drainage groove structure according to Reference Example 1 of the present invention. 参考例１に係る排水溝構造の部分省略平面図である。It is a partial abbreviated plan view of the drainage groove structure according to Reference Example 1. 参考例１に係る溝蓋を取り外した状態の平面図である。It is a top view of the state which removed the groove cover which concerns on the reference example 1. FIG. 参考例１に係る受枠を示す斜視図である。It is a perspective view which shows the receiving frame which concerns on the reference example 1. FIG. 参考例１に係る締結構造を示す縦断側面図である。It is a vertical side view which shows the fastening structure which concerns on the reference example 1. FIG. 参考例１に係る溝蓋の取付け方法を示す縦断側面図である。It is a vertical side view which shows the attachment method of the groove cover which concerns on the reference example 1. FIG. 参考例２に係る受枠を構成する側壁を示す斜視図である。It is a perspective view which shows the side wall which comprises the receiving frame which concerns on the reference example 2. FIG. 参考例２に係る排水溝構造の縦断正面図である。It is a vertical front view of the drainage groove structure according to Reference Example 2. 参考例２に係る締結構造を示す縦断正面図である。It is a vertical front view which shows the fastening structure which concerns on the reference example 2. FIG. 参考例３に係る受枠を構成する側壁を示す斜視図である。It is a perspective view which shows the side wall which comprises the receiving frame which concerns on the reference example 3. FIG. 参考例３に係る排水溝構造の縦断側面図である。It is a vertical side view of the drainage groove structure according to Reference Example 3. 参考例３に係る排水溝構造の縦断正面図である。It is a vertical front view of the drainage groove structure according to Reference Example 3. 参考例３に係る締結構造を示す縦断正面図である。It is a vertical front view which shows the fastening structure which concerns on the reference example 3. 参考例４に係る溝蓋を取り外した状態の平面図である。It is a top view of the state which removed the groove cover which concerns on the reference example 4. 参考例４に係る排水溝構造の縦断正面図である。It is a vertical front view of the drainage groove structure according to Reference Example 4. 実施例１に係る締結構造を示す縦断側面図である。It is a vertical side view which shows the fastening structure which concerns on Example 1. FIG. 実施例１に係る受枠を示す斜視図である。3 is a perspective view showing a receiving frame according to Embodiment 1. FIG. 実施例１に係る溝蓋の取付け方法を示す縦断側面図である。It is a vertical side view which shows the attachment method of the groove cover which concerns on Example 1. FIG. 図１８のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 実施例２に係る溝蓋の取付け方法を示す平面図である。6 is a plan view showing a method for attaching a groove lid according to Embodiment 2. FIG. 実施例３に係る支持体の斜視図である。10 is a perspective view of a support according to Example 3. FIG.

（参考例１）図１から図６に、幅狭型の排水溝構造の参考例１を示す。本参考例では、排水溝構造は車道と歩道の境界部分に設置してある。本発明における前後、左右、上下とは、図中に示す交差矢印と、各矢印の近傍に表記した前後、左右、上下の表示に従う。図１、図２および図３に示すように、排水溝構造は、路面舗装１に埋設される受枠２と、受枠２の上開口を覆う溝蓋３とを備えている。受枠２は、一方を透水性舗装１Ａに、他方を歩道端部に設置した縁石１Ｂに臨む状態で、受枠２の上端が透水性舗装１Ａと面一状に路面舗装１に埋設してある。 Figure 6 (Reference Example 1) FIG. 1, showing a reference example 1 of the drainage groove structure of the narrow type. In this reference example, the drainage structure is installed at the boundary between the roadway and the sidewalk. In the present invention, front / rear, left / right, and upper / lower follow the cross arrows shown in the figure and the front / rear, left / right, and upper / lower indications shown in the vicinity of each arrow. As shown in FIGS. 1, 2, and 3, the drainage groove structure includes a receiving frame 2 embedded in the road pavement 1 and a groove lid 3 that covers the upper opening of the receiving frame 2. The receiving frame 2 is embedded in the road pavement 1 so that the upper end of the receiving frame 2 is flush with the water-permeable pavement 1A, with one side facing the water-permeable pavement 1A and the other facing the curb 1B installed at the end of the sidewalk.

図３に示すように、溝蓋３は、左右一対のサイドプレート７と、前後一対のエンドプレート８と、左右のサイドプレート７の間に配置した４個のベアリングバー５と、これらベアリングバー５の上部に配置した多数個のクロスバー６とで前後に長い格子体状に構成する。ベアリングバー５は断面がＩ字状の条材を一定長さに切断して形成してあり（図１参照）、その前後端のそれぞれがエンドプレート８に溶接してある。ベアリングバー５の上面には、必要に応じて滑り止めの突起群が設けられる。クロスバー６は、断面が円形の鋼棒からなり、ベアリングバー５の上面と面一になる状態で溶接してある。 As shown in FIG. 3, the groove lid 3 includes a pair of left and right side plates 7, a pair of front and rear end plates 8, four bearing bars 5 disposed between the left and right side plates 7, and these bearing bars 5. A plurality of crossbars 6 arranged on the upper part of the frame are formed in a lattice shape that is long in the front-rear direction. The bearing bar 5 is formed by cutting a strip having an I-shaped cross section into a certain length (see FIG. 1), and the front and rear ends thereof are welded to the end plate 8. A non-slip projection group is provided on the upper surface of the bearing bar 5 as necessary. The cross bar 6 is made of a steel bar having a circular cross section, and is welded so as to be flush with the upper surface of the bearing bar 5.

図１、図３および図５に示すように、溝蓋３は前後端にそれぞれ締結構造１０を備えている。締結構造１０は、溝蓋３に設けられる締結ベース１１と、締結プレート１２と、締結ベース１１と締結プレート１２とを締結するねじ構造１３とを含んで構成してある。ねじ構造１３は、締結ベース１１に設けた挿通孔に挿通されるボルト１４と、締結プレート１２に固定されたナット１５とからなる。締結プレート１２は、中央にボルト１４を挿通するための挿通孔を設けた長方形の板体であり、挿通孔に臨むようにナット１５が溶接固定してある。締結プレート１２の長手方向の長さは、後述する一対の支持体２２・２２のベース壁２８・２８の間の長さよりも、僅かに小さく設定されている（図１参照）。 As shown in FIGS. 1, 3, and 5, the groove lid 3 includes a fastening structure 10 at the front and rear ends. The fastening structure 10 includes a fastening base 11 provided in the groove lid 3, a fastening plate 12, and a screw structure 13 that fastens the fastening base 11 and the fastening plate 12. The screw structure 13 includes a bolt 14 inserted through an insertion hole provided in the fastening base 11 and a nut 15 fixed to the fastening plate 12. The fastening plate 12 is a rectangular plate body provided with an insertion hole for inserting the bolt 14 at the center, and a nut 15 is fixed by welding so as to face the insertion hole. The length of the fastening plate 12 in the longitudinal direction is set slightly smaller than the length between the base walls 28 and 28 of a pair of supports 22 and 22 described later (see FIG. 1).

図２および図５に示すように、締結ベース１１を設ける個所では中央の２本のベアリングバー５が省略されており、その左右辺部が左右一対のベアリングバー５に溶接してある。また、締結ベース１１の前後辺部に対向する状態で、一対の隔壁１６・１６が一対のベアリングバー５に溶接してある。締結ベース１１と一対のベアリングバー５と一対の隔壁１６・１６とで、ボルト１４の操作頭部、および締結工具のレンチを収容する凹部が形成されている。凹部内に収容したボルト１４の操作頭部は、溝蓋３の上面からは突出しない。締結ベース１１と前後の隔壁１６・１６との間には、それぞれ開口１７・１７を設けてあり（図５参照）、凹部内に水、ごみおよび小石等が溜らないようになっている。 As shown in FIGS. 2 and 5, the two bearing bars 5 at the center are omitted where the fastening base 11 is provided, and the left and right sides thereof are welded to the pair of left and right bearing bars 5. Further, a pair of partition walls 16, 16 are welded to the pair of bearing bars 5 in a state of facing the front and rear sides of the fastening base 11. The fastening base 11, the pair of bearing bars 5, and the pair of partition walls 16, 16 form a recess for receiving the operating head of the bolt 14 and the wrench of the fastening tool. The operation head of the bolt 14 accommodated in the recess does not protrude from the upper surface of the groove lid 3. Openings 17 and 17 are provided between the fastening base 11 and the front and rear partition walls 16 and 16, respectively (see FIG. 5), so that water, dust, pebbles, and the like are not accumulated in the recesses.

図１および図４に示すように、受枠２は、底部材２０と、底部材２０に連続する左右一対の側壁２１・２１と、溝蓋３を支持する左右一対ずつの支持体２２・２２とで構成してある。底部材２０と一対の側壁２１・２１とは、金属板材にプレス加工を施して、断面コ字状に一体に形成してあり、その内部空間が通水路３５を構成している。両側壁２１・２１の対向面の長手方向に沿って、５組の一対の支持体２２・２２が等間隔おきに断続的に溶接してある。なお、前後に隣り合う支持体２２の間隔は、隣接して設置される受枠２に跨る場合でも、同じ間隔になるように設定されている。透水性舗装１Ａに臨む左方の側壁２１には、長穴状の通水孔２３が形成してあり、透水性舗装１Ａに吸収された水は、通水孔２３を通って通水路３５に流入できるようになっている。通水孔２３は、側壁２１の上下方向中央より上側に位置する状態で、等間隔に１０個設けてある。透水性舗装１Ａ側の側壁２１の下端側には、３個のＬ字状の固定部材２４が設けてあり、受枠２は、固定部材２４が路面基礎に設けられたアンカーボルト２５にナット２６で締結固定された状態で、路面舗装１に埋設されている。図３および図４において、符号３６は、施工時に隣接する受枠２との位置合わせをするための位置決め片であり、側壁２１の後端下部に固定してある。 As shown in FIGS. 1 and 4, the receiving frame 2 includes a bottom member 20, a pair of left and right side walls 21, 21 that are continuous with the bottom member 20, and a pair of left and right support bodies 22, 22 that support the groove lid 3. It consists of The bottom member 20 and the pair of side walls 21 and 21 are formed by integrally pressing a metal plate material into a U-shaped cross section, and the internal space forms a water passage 35. Along the longitudinal direction of the opposing surfaces of the side walls 21 and 21, five pairs of support bodies 22 and 22 are intermittently welded at equal intervals. In addition, the space | interval of the support body 22 adjacent before and behind is set so that it may become the same space | interval, even when straddling the receiving frame 2 installed adjacently. In the left side wall 21 facing the permeable pavement 1A, a long hole-shaped water passage hole 23 is formed, and the water absorbed by the water permeable pavement 1A passes through the water passage hole 23 to the water passage 35. Inflow is possible. Ten water passage holes 23 are provided at equal intervals in a state of being located above the center of the side wall 21 in the vertical direction. Three L-shaped fixing members 24 are provided on the lower end side of the side wall 21 on the permeable pavement 1A side, and the receiving frame 2 is attached to anchor bolts 25 provided with the fixing members 24 on the road surface foundation with nuts 26. It is buried in the road pavement 1 in a fastened and fixed state. 3 and 4, reference numeral 36 is a positioning piece for aligning with the receiving frame 2 adjacent at the time of construction, and is fixed to the lower end of the rear end of the side wall 21.

図４に示すように、支持体２２はプレス成形品からなり、側壁２１に固定されるベース壁２８と、ベース壁２８の上縁および下縁から中央へ向かって突出される第１支持板２９および第２支持板３０を備えている。さらに、ベース壁２８の後端から中央へ向かって折曲げられる補強壁３１と、第１支持板２９の突端から上向きに突設してある支持壁３２とを一体に備えている。ベース壁２８、第１支持板２９および第２支持板３０で、断面コ字状の挿入溝３３を構成しており、挿入溝３３の後端は、補強壁３１で塞がれている。溝蓋３は、左右のサイドプレート７が第１支持板２９に支持される状態で支持体２２に載置され、締結構造１０で受枠２に固定されて受枠２の上開口を覆う（図１参照）。 As shown in FIG. 4, the support 22 is made of a press-molded product, and includes a base wall 28 fixed to the side wall 21, and a first support plate 29 that protrudes from the upper and lower edges of the base wall 28 toward the center. And a second support plate 30. Furthermore, a reinforcing wall 31 that is bent toward the center from the rear end of the base wall 28 and a support wall 32 that protrudes upward from the protruding end of the first support plate 29 are integrally provided. The base wall 28, the first support plate 29 and the second support plate 30 constitute an insertion groove 33 having a U-shaped cross section, and the rear end of the insertion groove 33 is closed by a reinforcing wall 31. The groove lid 3 is placed on the support 22 in a state where the left and right side plates 7 are supported by the first support plate 29, and is fixed to the receiving frame 2 by the fastening structure 10 to cover the upper opening of the receiving frame 2 (FIG. 1). reference).

溝蓋３は、例えば以下の要領で受枠２に載置し締結固定する。まず、ボルト１４を締結ベース１１の挿通孔に挿通し、締結プレート１２のナット１５に軽くねじ込み、締結プレート１２の長手方向が、溝蓋３の幅方向に沿うようにする。このとき、前後のボルト１４・１４のねじ込み量が異なっていても問題はない。次に、図６に示すように、締結プレート１２が掛止される受枠２に対して溝蓋３を前方にずらし、締結構造１０と支持体２２が重ならない位置で溝蓋３を受枠２内に挿入し、締結プレート１２の左右両端の掛止部３４・３４が、支持体２２・２２の挿入溝３３・３３に入り込むように、溝蓋３を後方に移動させる。溝蓋３を移動させると、掛止部３４が補強壁３１に接触して後方への移動が規制され、溝蓋３を所定の位置に位置決めすることができる。この状態では、締結プレート１２に対するボルト１４の締め込み量が少ない場合には、掛止部３４が第２支持板３０に支持された状態で載置され、逆に締め込み量が多い場合には、サイドプレート７が第１支持板２９に支持された状態で載置される。 The groove cover 3 is placed and fixed to the receiving frame 2 in the following manner, for example. First, the bolt 14 is inserted into the insertion hole of the fastening base 11 and lightly screwed into the nut 15 of the fastening plate 12 so that the longitudinal direction of the fastening plate 12 is along the width direction of the groove lid 3. At this time, there is no problem even if the screw amounts of the front and rear bolts 14 and 14 are different. Next, as shown in FIG. 6, the groove lid 3 is shifted forward with respect to the receiving frame 2 on which the fastening plate 12 is hooked, and the groove lid 3 is placed in the receiving frame 2 at a position where the fastening structure 10 and the support 22 do not overlap. Then, the groove lid 3 is moved rearward so that the latching portions 34, 34 at the left and right ends of the fastening plate 12 enter the insertion grooves 33, 33 of the support members 22, 22. When the groove lid 3 is moved, the latching portion 34 comes into contact with the reinforcing wall 31 and the rearward movement is restricted, and the groove lid 3 can be positioned at a predetermined position. In this state, when the tightening amount of the bolt 14 with respect to the fastening plate 12 is small, the hooking portion 34 is placed in a state of being supported by the second support plate 30, and conversely when the tightening amount is large. The side plate 7 is placed in a state where it is supported by the first support plate 29.

上記のように、溝蓋３を位置決めして載置した状態で、各ボルト１４を締め込み操作する。このとき、締結プレート１２は、両ベース壁２８・２８または両補強壁３１・３１により、回転が規制されるので、締め込み操作に伴う共回りを防止できる。ボルト１４の締め込み操作により、締結プレート１２は上方へ引寄せられ、やがて、溝蓋３のサイドプレート７と締結プレート１２の掛止部３４とで、第１支持板２９が上下に狭持される。これにより、溝蓋３は受枠２に強固に締結固定されるので、人または車両の通過による溝蓋３の跳ね上がりを防止できる。 As described above, the bolts 14 are tightened with the groove lid 3 positioned and placed. At this time, since the rotation of the fastening plate 12 is restricted by the base walls 28 and 28 or the reinforcing walls 31 and 31, it is possible to prevent co-rotation associated with the tightening operation. The fastening plate 12 is pulled upward by the tightening operation of the bolts 14, and the first support plate 29 is sandwiched up and down by the side plate 7 of the groove lid 3 and the latching portion 34 of the fastening plate 12. The Thereby, since the groove lid 3 is firmly fastened and fixed to the receiving frame 2, it is possible to prevent the groove lid 3 from jumping up due to passage of a person or a vehicle.

溝蓋３上を通過する人あるいは車両の振動により、溝蓋３と受枠２を固定しているねじ構造１３が緩む場合がある。この場合でも、ねじ構造１３が分離しない限り、締結プレート１２の掛止部３４が、支持体２２の挿入溝３３内に位置しているので、溝蓋３の跳ね上がり、あるいは通水路３５内への落下を阻止することができる。なお、振動によるねじ構造１３の緩みを防止する目的で、ボルト１４に緩み止め剤をあらかじめ塗布してもよい。 The screw structure 13 that fixes the groove cover 3 and the receiving frame 2 may loosen due to vibration of a person or vehicle passing over the groove cover 3. Even in this case, as long as the screw structure 13 is not separated, the latching portion 34 of the fastening plate 12 is located in the insertion groove 33 of the support 22, so that the groove lid 3 jumps up or enters the water passage 35. Can prevent the fall. Note that a locking agent may be applied to the bolt 14 in advance for the purpose of preventing the screw structure 13 from loosening due to vibration.

上記の参考例では、底部材２０を直線状に形成したがその必要はなく、底部材２０と側壁２１との隣接部分に斜面を設けてもよい。また、底部材２０を曲面状に形成してもよい。ボルト１４をナット１５にねじ込んで締結プレート１２を掛止した状態で、ボルト１４先端のねじ山をつぶす等して、ねじ構造１３が分離できないように構成することもできる。 In the above reference example, the bottom member 20 is formed in a straight line shape, but it is not necessary, and a slope may be provided in an adjacent portion between the bottom member 20 and the side wall 21. Further, the bottom member 20 may be formed in a curved shape. In a state where the bolt 14 is screwed into the nut 15 and the fastening plate 12 is hooked, the thread structure at the tip of the bolt 14 is crushed or the like so that the screw structure 13 cannot be separated.

（参考例２）図７から図９に、幅狭型の排水溝構造の参考例２を示す。本参考例では、排水溝構造を歩道に設置した場合を示す。図８に示すように、受枠２は、底部材２０をコンクリートで成形された円形水路（成形側溝）５０で構成し、円形水路５０の上面に左右一対の側壁２１・２１を固定してある。側壁２１は、その下端に固定板４０を設けて、断面Ｌ字状のプレス成形品として形成してあり、固定板４０が円形水路５０に設けたアンカーボルト４１にナット４２で締結固定してある。一対の側壁２１・２１と円形水路５０とで通水路３５が構成されている。歩道の場合、路面舗装１の表面は通常のアスファルト舗装、あるいはレンガブロック等であるので、側壁２１の通水孔２３は省略してある。これら以外の点は、先の参考例１と同様であるので、同一部材には同一符号を付して、その説明を省略する。本参考例では、成形側溝５０は、円形水路を使用したが、Ｕ字型側溝等を使用することもできる。 Figure 9 (Example 2) FIG. 7 shows a reference example 2 of the drainage groove structure of the narrow type. In this reference example, the drainage groove structure is installed on the sidewalk. As shown in FIG. 8, in the receiving frame 2, the bottom member 20 is configured by a circular water channel (molding side groove) 50 formed of concrete, and a pair of left and right side walls 21 and 21 are fixed to the upper surface of the circular water channel 50. The side wall 21 is provided with a fixing plate 40 at the lower end thereof, and is formed as a press-formed product having an L-shaped cross section. The fixing plate 40 is fastened and fixed to an anchor bolt 41 provided in a circular water channel 50 by a nut 42. . The pair of side walls 21 and 21 and the circular water channel 50 constitute a water channel 35. In the case of a sidewalk, since the surface of the road pavement 1 is a normal asphalt pavement or a brick block, the water passage hole 23 in the side wall 21 is omitted. Since points other than these are the same as those of the first reference example, the same reference numerals are given to the same members, and descriptions thereof are omitted. In this reference example, a circular water channel is used as the molding side groove 50, but a U-shaped side groove or the like can also be used.

（参考例３）図１０から図１３に、幅狭型の排水溝構造の参考例３を示す。本参考例では、溝蓋３が蓋高さを高くするための嵩上げ部材４５を備えている点と、支持体２２の支持壁３２が省略されている点が、先の参考例２とは異なる。図１１に示すように、溝蓋３の底面の３箇所には、嵩上げ部材４５が一体に設けられており、前後端の嵩上げ部材４５は、締結構造１０の締結ベース１１を兼ねている。嵩上げ部材４５は、溝蓋３の幅寸法と同じ長さに切断した角パイプで形成し、溝蓋３の底面に溶接固定してある。嵩上げ部材４５の上下壁の中央には、ボルト１４を挿通するための挿通孔が設けてある。溝蓋３は、各嵩上げ部材４５が支持体２２の第１支持板２９に支持された状態で載置され、締結構造１０で受枠２に固定された状態で、受枠２の上開口を覆うようになっている（図１３参照）。これら以外の点は、先の参考例２と同様であるので、同一部材には同一符号を付して、その説明を省略する。 Figure 13 (Example 3) FIG. 10 shows a reference example 3 of the drainage groove structure of the narrow type. In the present reference example, the point that the groove lid 3 is provided with a raising member 45 for increasing the lid height and the point that the support wall 32 of the support 22 is omitted are different from the previous reference example 2. . As shown in FIG. 11, raising members 45 are integrally provided at three locations on the bottom surface of the groove lid 3, and the raising members 45 at the front and rear ends also serve as the fastening base 11 of the fastening structure 10. The raising member 45 is formed by a square pipe cut to the same length as the width dimension of the groove lid 3, and is welded and fixed to the bottom surface of the groove lid 3. An insertion hole for inserting the bolt 14 is provided in the center of the upper and lower walls of the raising member 45. The groove lid 3 is placed in a state in which each raising member 45 is supported by the first support plate 29 of the support 22, and covers the upper opening of the receiving frame 2 while being fixed to the receiving frame 2 by the fastening structure 10. (See FIG. 13). Since points other than these are the same as those in Reference Example 2, the same reference numerals are given to the same members, and descriptions thereof are omitted.

本参考例では、支持壁３２を省略して断面コ字状の支持体２２としたが、支持壁３２を備える支持体２２の上下方向を逆に固定することにより、支持壁３２を省略した場合と同じ形態で溝蓋３を支持することができる。 In this reference example, the support wall 32 is omitted and the support body 22 has a U-shaped cross section, but when the support wall 32 is omitted by fixing the support body 22 including the support wall 32 in the up-down direction in reverse. The groove lid 3 can be supported in the same form.

（参考例４）図１４から図１５に、幅狭型の排水溝構造の参考例４を示す。本参考例では、溝蓋３は、締結構造１０を省略してあり、弾性を有する金属クリップＣを使用して受枠２に固定する。金属クリップＣは、自身の弾性力で一方のサイドプレート７に下方から差し込んだ状態で取付けられており、サイドプレート７が第１支持板２９に受止められない部分に装着する。溝蓋３は、金属クリップＣを取付けた状態で受枠２内に挿入され、左右のサイドプレート７が第１支持板２９に支持された状態で、受枠２の上開口を覆うようになっている。このとき、溝蓋３は、金属クリップＣの弾性力で、側壁２１に押し付けられて、受枠２に固定されている（図１５参照）。これら以外の点は、先の参考例１と同様であるので、同一部材には同一符号を付して、その説明を省略する。このように、受枠２は、締結構造１０を備えない溝蓋３であっても支持することができ、したがって、締結構造１０を備える溝蓋３と受枠２を共用することができるので、受枠２の製造コストおよび管理コストを抑えることができる。 Figure 15 (Example 4) FIG. 14 shows a reference example 4 of the drainage groove structure of the narrow type. In the present reference example, the groove cover 3 is omitted from the fastening structure 10 and is fixed to the receiving frame 2 using a metal clip C having elasticity. The metal clip C is attached in a state where it is inserted into the one side plate 7 from below by its own elastic force, and is attached to a portion where the side plate 7 cannot be received by the first support plate 29. The groove lid 3 is inserted into the receiving frame 2 with the metal clip C attached, and covers the upper opening of the receiving frame 2 with the left and right side plates 7 supported by the first support plate 29. . At this time, the groove lid 3 is pressed against the side wall 21 by the elastic force of the metal clip C and fixed to the receiving frame 2 (see FIG. 15). Since points other than these are the same as those of the first reference example, the same reference numerals are given to the same members, and descriptions thereof are omitted. Thus, receiving frame 2 can be Mizofuta 3 without the fastening structure 10 supports, therefore, it is possible to share the grooves lid 3 and receiving frame 2 comprises a fastening structure 10, receiving frame 2 manufacturing costs and management costs can be reduced.

（実施例１）図１６から図１９に、本発明に係る幅狭型の排水溝構造の実施例１を示す。本実施例では、以下に列挙する点が先の参考例１と異なる。第一点目は、締結プレート１２を挿入姿勢に保持するプレート保持体４９を溝蓋３に設けた点である。第二点目は、溝蓋３を支持体２２に仮組みする際に、締結プレート１２を受止め、さらにスライド案内するプレート案内板４６を支持体２２に設けた点である。第三点目は、締結プレート１２とベース壁２８との引っ掛かりを防止する挿入ガイド部４７を締結プレート１２に形成した点である。第四点目は、受枠２の底部材２０と両側壁２１・２１との接続部を円弧状に形成した点である。 Example 1 FIGS. 16 to 19 show Example 1 of a narrow drainage groove structure according to the present invention. In the present embodiment, the points listed below are different from the first reference example. The first point is that a plate holder 49 that holds the fastening plate 12 in the insertion posture is provided in the groove lid 3. The second point is that the support 22 is provided with a plate guide plate 46 for receiving the fastening plate 12 and slidingly guiding it when the groove lid 3 is temporarily assembled to the support 22. The third point is that an insertion guide portion 47 for preventing the fastening plate 12 and the base wall 28 from being caught is formed on the fastening plate 12. The fourth point is that the connecting portion between the bottom member 20 of the receiving frame 2 and the side walls 21 and 21 is formed in an arc shape.

図１６および図１８に示すように、プレート保持体４９は、締結ベース１１の前端から下向きに折り曲げられて、締結ベース１１と一体に形成してある。図１９に示すように、プレート保持体４９は、溝蓋３に仮組みした締結プレート１２を適正な挿入姿勢に保持するために設けてあり、その後面で締結プレート１２の前端面（周縁）を受止めて、同プレート１２を、その長手方向線が支持体２２の前後方向と直交する姿勢に保持している。 As shown in FIGS. 16 and 18, the plate holder 49 is bent downward from the front end of the fastening base 11 and formed integrally with the fastening base 11. As shown in FIG. 19, the plate holder 49 is provided to hold the fastening plate 12 temporarily assembled in the groove lid 3 in an appropriate insertion posture, and the front end surface (periphery) of the fastening plate 12 is formed on the rear surface thereof. The plate 12 is held in a posture in which the longitudinal direction line is orthogonal to the front-rear direction of the support 22.

図１６から図１９に示すように、プレート案内板４６は、支持体２２の第２支持板３０を前方向に延設して支持体２２と一体に形成してあり、第２支持板３０と面一になっている。プレート案内板４６は、全ての支持体２２に設ける必要はなく、図１７に示すように受枠２の前後端に位置する合計４個の支持体２２に限って設ける。受枠２の底部材２０と両側壁２１・２１との隣接部分の断面を、半径値が大きな４分円弧状に形成して、両者２０・２１の隣接部分にごみおよび小石等が固着するのを防止している。図１９に示すように、挿入ガイド部４７は、平面視における締結プレート１２の四隅を斜めに切欠いて形成してある。これら以外の点は、先の参考例１と同様であるので、同一部材には同一符号を付して、その説明を省略する。 As shown in FIGS. 16 to 19, the plate guide plate 46 is formed integrally with the support 22 by extending the second support plate 30 of the support 22 in the forward direction. It is the same. The plate guide plates 46 need not be provided on all the supports 22, and are provided only on a total of four supports 22 positioned at the front and rear ends of the receiving frame 2 as shown in FIG. 17. The cross section of the adjacent portion of the bottom member 20 of the receiving frame 2 and the side walls 21 and 21 is formed in a quadrant having a large radius value, and dust, pebbles, and the like are fixed to the adjacent portions of the both 20 and 21. It is preventing. As shown in FIG. 19, the insertion guide portion 47 is formed by obliquely cutting the four corners of the fastening plate 12 in plan view. Since points other than these are the same as those of the first reference example, the same reference numerals are given to the same members, and descriptions thereof are omitted.

本実施例の溝蓋３は、例えば以下の要領で受枠２に載置し締結固定する。まず、ボルト１４を締結ベース１１の挿通孔に挿通し、さらに締結プレート１２のナット１５にねじ込んで、締結プレート１２の前端面がプレート保持体４９の後面で受止められる状態になるまで、締結プレート１２を締結ベース１１側へ引寄せる。このとき、前後のボルト１４・１４のねじ込み量が異なっていても問題はない。次に、図１８に示すように、締結プレート１２が前後端の支持体２２のプレート案内板４６と対向する状態で溝蓋３を受枠２内に挿入し、支持体２２上に溝蓋３を仮載置する。このとき、締結プレート１２は、プレート案内板４６で受止められて、締結プレート１２の下面が第２支持壁３０の上面と同じ高さ位置に保持されて仮位置決めされる。次に、溝蓋３を後方にスライド移動させると、締結プレート１２はプレート案内板４６で案内されて、両掛止部３４が支持体２２・２２の挿入溝３３・３３に入り込む。最終的には、締結プレート１２が補強壁３１で受止められて後方への移動が規制され、溝蓋３を所定の位置に位置決めした状態で仮組みできる。 The groove lid 3 of the present embodiment is placed on the receiving frame 2 and fastened and fixed, for example, in the following manner. First, the bolt 14 is inserted into the insertion hole of the fastening base 11 and further screwed into the nut 15 of the fastening plate 12 until the front end face of the fastening plate 12 is received by the rear face of the plate holding body 49. 12 is pulled toward the fastening base 11 side. At this time, there is no problem even if the screw amounts of the front and rear bolts 14 and 14 are different. Next, as shown in FIG. 18, the groove lid 3 is inserted into the receiving frame 2 with the fastening plate 12 facing the plate guide plate 46 of the support 22 at the front and rear ends, and the groove lid 3 is placed on the support 22. Temporary placement. At this time, the fastening plate 12 is received by the plate guide plate 46, and the lower surface of the fastening plate 12 is held at the same height as the upper surface of the second support wall 30 and temporarily positioned. Next, when the groove lid 3 is slid rearward, the fastening plate 12 is guided by the plate guide plate 46, and both the latching portions 34 enter the insertion grooves 33 and 33 of the support bodies 22 and 22, respectively. Eventually, the fastening plate 12 is received by the reinforcing wall 31 and the rearward movement is restricted, and the groove cover 3 can be temporarily assembled in a state where it is positioned at a predetermined position.

上記のように、溝蓋３を位置決めして載置した状態で、各ボルト１４を締め込み操作する。このとき、締結プレート１２は、両ベース壁２８・２８、両補強壁３１・３１、あるいはプレート保持体４９により回転が規制されるので、ボルト１４の締め込み操作に伴う共回りを防止できる。ボルト１４を締め込むのに伴って、締結プレート１２は上方へ引寄せられ、やがて、溝蓋３のサイドプレート７と締結プレート１２の掛止部３４とで、第１支持板２９が上下に狭持される。これにより、溝蓋３は受枠２に強固に締結固定されるので、人または車両が通過するときの、重量モーメントによる溝蓋３の跳ね上がりを防止できる。 As described above, the bolts 14 are tightened with the groove lid 3 positioned and placed. At this time, since the rotation of the fastening plate 12 is restricted by both the base walls 28 and 28, both the reinforcing walls 31 and 31, or the plate holder 49, it is possible to prevent co-rotation accompanying the tightening operation of the bolt 14. As the bolt 14 is tightened, the fastening plate 12 is drawn upward, and the first support plate 29 is narrowed up and down by the side plate 7 of the groove lid 3 and the latching portion 34 of the fastening plate 12 in due course. Be held. Thereby, since the groove cover 3 is firmly fastened and fixed to the receiving frame 2, it is possible to prevent the groove cover 3 from jumping up due to a weight moment when a person or a vehicle passes.

このように、溝蓋３にプレート保持体４９を設けると、締結プレート１２を溝蓋３に仮組みした時点で、締結プレート１２の姿勢をプレート保持体４９で適正な挿入姿勢に保持できる。さらに、溝蓋３を支持体２２に仮組みする際に、締結プレート１２の姿勢が大きくずれ動くこともない。したがって、溝蓋３の受枠２に対する仮組み作業を容易にしかも的確に行うことができる。 Thus, when the plate holder 49 is provided in the groove lid 3, the fastening plate 12 can be held in an appropriate insertion posture by the plate holder 49 when the fastening plate 12 is temporarily assembled to the groove lid 3. Further, when the groove lid 3 is temporarily assembled to the support 22, the posture of the fastening plate 12 does not move greatly. Therefore, the temporary assembly work of the groove lid 3 with respect to the receiving frame 2 can be easily and accurately performed.

支持体２２または受枠２のいずれか一方にプレート案内板４６を設けると、溝蓋３を支持体２２に仮組みする過程で、締結プレート１２をプレート案内板４６で受止めて仮位置決めできる。したがって、以後は、溝蓋３を支持体２２へ向かってをスライド移動させるだけで、溝蓋３を支持体２２に対して簡単に仮組みでき、全体として、仮組み、位置決め、締結などの溝蓋３の受枠２に対する一連の組付作業を容易にしかも的確に行なうことができる。 If the plate guide plate 46 is provided on either the support 22 or the receiving frame 2, the fastening plate 12 can be received by the plate guide plate 46 and temporarily positioned in the process of temporarily assembling the groove lid 3 to the support 22. Therefore, after that, the groove lid 3 can be simply temporarily assembled to the support 22 simply by sliding the groove lid 3 toward the support 22, and as a whole, the grooves for temporary assembly, positioning, fastening, etc. A series of assembling operations for the receiving frame 2 of the lid 3 can be easily and accurately performed.

締結プレート１２の両端の隅部分に挿入ガイド部４７を形成すると、締結プレート１２を一対の支持体２２・２２に挿入する際に、締結プレート１２がベース壁２８に引っ掛かるのを防止できる。したがって、締結プレート１２の支持体２２への仮組みをスムーズに行って、溝蓋３の受枠２に対する一連の組付作業をさらに容易にしかもさらに的確に行なうことができる。加えて、挿入ガイド部４７を締結プレート１２の四隅に形成すると、同プレート１２の前後方向を気にすることなく締結プレート１２を溝蓋３に仮組みすることができる。 When the insertion guide portions 47 are formed at the corners at both ends of the fastening plate 12, the fastening plate 12 can be prevented from being caught by the base wall 28 when the fastening plate 12 is inserted into the pair of support bodies 22. Therefore, the temporary assembly of the fastening plate 12 to the support 22 can be performed smoothly, and a series of assembly operations of the groove lid 3 with respect to the receiving frame 2 can be performed more easily and more accurately. In addition, if the insertion guide portions 47 are formed at the four corners of the fastening plate 12, the fastening plate 12 can be temporarily assembled to the groove lid 3 without worrying about the front-rear direction of the plate 12.

本実施例では、プレート案内板４６と第２支持板３０とは、両者３０・４６の上面を同一高さに形成したが、その必要はなく、両者３０・４６の上面の高さが異なっていてもよい。この場合には、両者３０・４６の接続部分を傾斜面等で滑らかに連続させることにより、締結プレート１２を挿入溝３３に案内することができる。また、プレート案内板４６は支持体２２と別体で構成して、受枠２に設けることができる。この場合には、プレート案内板４６と第２支持板３０とは、小さな隙間を介して隣接していてもよい。挿入ガイド部４７の形状は、斜めに切欠くほか、隅部をＲ状に丸めてあってもよい。 In the present embodiment, the plate guide plate 46 and the second support plate 30 are formed such that the upper surfaces of both the plates 30 and 46 have the same height, but this is not necessary, and the heights of the upper surfaces of both the plates 30 and 46 are different. May be. In this case, the fastening plate 12 can be guided to the insertion groove 33 by smoothly connecting the connecting portions of the both 30 and 46 with an inclined surface or the like. Further, the plate guide plate 46 can be configured separately from the support 22 and provided in the receiving frame 2. In this case, the plate guide plate 46 and the second support plate 30 may be adjacent to each other through a small gap. The shape of the insertion guide portion 47 may be cut out obliquely, and the corner may be rounded into an R shape.

（実施例２）図２０に、本発明に係る幅狭型の排水溝構造の実施例２を示す。本実施例では、溝蓋３Ａ（３）を縞鋼板で形成する点が先の実施例１とは異なる。溝蓋３Ａは、縞鋼板の両端を下方に折り曲げ加工を施して、開口が下向きの断面コ字状に形成してあり、その上面に複数の排水孔４８を設けてある。縞鋼板にはボルト１４の操作頭部を挿通するための貫通孔が形成してあり、ボルト１４を締結プレート１２のナット１５に締結した状態では、先の実施例と同様に、操作頭部がプレート保持体４９に密着して貫通孔より下方に位置している。これ以外の点は、先の実施例１と同様であるので、同一部材には同一符号を付して、その説明を省略する。このように、縞鋼板で形成された溝蓋３Ａにおいては、上方から締結プレート１２の姿勢を確認できないが、こうした状況であっても、プレート保持体４９で締結プレート１２を常に適正な挿入姿勢に保持できるので、溝蓋３Ａの受枠２に対する仮組み作業を容易にしかも的確に行なうことができる。 Example 2 FIG. 20 shows Example 2 of a narrow drainage groove structure according to the present invention. This embodiment is different from the first embodiment in that the groove lid 3A (3) is formed of a striped steel plate. The groove lid 3A is formed by bending both ends of the striped steel plate downward so that the opening is formed in a U-shaped cross section with a downward direction, and a plurality of drain holes 48 are provided on the upper surface thereof. In the striped steel plate, a through hole for inserting the operation head of the bolt 14 is formed. When the bolt 14 is fastened to the nut 15 of the fastening plate 12, the operation head is similar to the previous embodiment. It is in close contact with the plate holder 49 and positioned below the through hole. Since the other points are the same as in the first embodiment, the same members are denoted by the same reference numerals, and the description thereof is omitted. Thus, in the groove lid 3A formed of the striped steel plate, the posture of the fastening plate 12 cannot be confirmed from above, but even in such a situation, the fastening plate 12 is always in the proper insertion posture by the plate holder 49. Since it can hold | maintain, the temporary assembly operation | work with respect to the receiving frame 2 of 3 A of groove covers can be performed easily and exactly.

（実施例３）図２１に、本発明に係る幅狭型の排水溝構造の実施例３を示す。本実施例では、支持体２２を２個のプレス成形品で形成する点と、支持体２２にプレート案内板４６を設けた点が先の参考例３とは異なる。支持体２２は、ベース壁２８と第１支持板２９とをＬ字状に一体に形成したプレス成形品と、第２支持壁３０と補強壁３１とをＬ字状に一体に形成したプレス成形品とを溶接固定して形成してある。第２支持壁３０はベース壁２８の上下方向の下側中途部に固定されており、補強壁３１は第１支持板２９の上面よりも上方に突出している。受枠２の前後端に位置する合計４個の支持体２２・２２に限っては、第２支持板３０をベース壁２８の前後長さよりも長く形成して、溝蓋３を支持体２２に仮組みする過程で締結プレート１２を受止めるプレート案内板４６としてある。これ以外の点は、先の参考例３と同様であるので、同一部材には同一符号を付して、その説明を省略する。 Example 3 FIG. 21 shows Example 3 of a narrow drainage groove structure according to the present invention. In the present embodiment, the point that the support 22 is formed by two press-formed products and the point that the plate guide plate 46 is provided on the support 22 are different from the reference example 3 described above. The support 22 is a press-molded product in which a base wall 28 and a first support plate 29 are integrally formed in an L shape, and a press mold in which a second support wall 30 and a reinforcing wall 31 are integrally formed in an L shape. The product is formed by welding and fixing. The second support wall 30 is fixed to the lower middle portion of the base wall 28 in the vertical direction, and the reinforcing wall 31 protrudes above the upper surface of the first support plate 29. For a total of four support bodies 22, 22 positioned at the front and rear ends of the receiving frame 2, the second support plate 30 is formed longer than the front and rear lengths of the base wall 28, and the groove lid 3 is temporarily attached to the support body 22. The plate guide plate 46 receives the fastening plate 12 during the assembly process. Since the other points are the same as in Reference Example 3, the same members are denoted by the same reference numerals, and the description thereof is omitted.

上記実施例のように、支持体２２は複数個のプレス成形品または板材を溶接固定して形成することができる。また、第２支持板３０はベース壁２８の下縁に位置する必要はなく、締結プレート１２を挿入することができる挿入溝３３が形成できる位置であればよい。ベース壁２８の上下長さを長くすると、受枠２の側壁２１に支持体２２を溶接固定する場合には溶接長を大きくすることができ、より強固に支持体２２を側壁２１に溶接固定することができる。 As in the above embodiment, the support 22 can be formed by welding and fixing a plurality of press-formed products or plate materials. Further, the second support plate 30 does not have to be positioned at the lower edge of the base wall 28, and may be any position where the insertion groove 33 into which the fastening plate 12 can be inserted can be formed. When the vertical length of the base wall 28 is lengthened, the weld length can be increased when the support 22 is fixed to the side wall 21 of the receiving frame 2 by welding, and the support 22 is fixed to the side wall 21 more firmly by welding. Can do.

以上のように、受枠２に支持体２２を断続的に設けると、支持体２２の上側において溝蓋３と受枠２との隙間に入り込んだごみおよび小石等は、支持体２２の前後端部から通水路３５へと流下されるので、先の隙間にごみ等が詰まることはない。これにより、隙間内でごみおよび小石等が固着することを解消でき、溝蓋３が取り外せなくなることを防止できる。さらに、支持体２２を左右に分離した状態で設けてあるので、通水路３５の清掃時に支持体２２が邪魔にならず、ごみおよび小石等をほうきで連続して掃き進めることができ、清掃の手間を軽減できる。 As described above, when the support 22 is intermittently provided on the receiving frame 2, dust, pebbles, and the like that have entered the gap between the groove lid 3 and the receiving frame 2 on the upper side of the support 22 are removed from the front and rear ends of the support 22. Since the water flows down to the water passage 35, no dust or the like is clogged in the previous gap. As a result, it is possible to eliminate sticking of dust, pebbles and the like in the gap, and it is possible to prevent the groove lid 3 from being removed. Furthermore, since the support 22 is provided in a state where it is separated into left and right, the support 22 does not get in the way when the water passage 35 is cleaned, and dust, pebbles, etc. can be continuously swept away with a broom. Can save time and effort.

本発明に係る受枠２を構成する一対の支持体２２・２２の数は、実施例１〜３に示したものに限られない。一対の支持体２２・２２は２組以上あればよく、溝蓋３を支持するのに必要な強度に応じた数に適宜変更することができる。 The number of a pair of support bodies 22 and 22 which comprise the receiving frame 2 which concerns on this invention is not restricted to what was shown in Examples 1-3 . The pair of support bodies 22 and 22 may be two or more, and can be appropriately changed to a number corresponding to the strength necessary to support the groove lid 3.

１路面舗装
１Ａ透水性舗装
２受枠
３溝蓋
１０締結構造
１１締結ベース
１２締結プレート
１３ねじ構造
２０底部材
２１側壁
２２支持体
２３通水孔
２８ベース壁
２９第１支持板
３０第２支持板
３１補強壁
３２支持壁
３５通水路
４５嵩上げ部材
４６プレート案内板
４７挿入ガイド部
４９プレート保持体
５０成形側溝（円形水路） DESCRIPTION OF SYMBOLS 1 Road surface pavement 1A Permeable pavement 2 Receiving frame 3 Groove cover 10 Fastening structure 11 Fastening base 12 Fastening plate 13 Screw structure 20 Bottom member 21 Side wall 22 Support body 23 Water flow hole 28 Base wall 29 First support plate 30 Second support plate 31 Reinforcement wall 32 Support wall 35 Water passage 45 Raising member 46 Plate guide plate 47 Insertion guide portion 49 Plate holder 50 Molding side groove (circular water passage)

Claims

A narrow drainage groove structure comprising a receiving frame (2) embedded in the road pavement (1) and a groove lid (3) covering the upper opening of the receiving frame (2),
The receiving frame (2) is intermittently fixed along the longitudinal direction of the opposing surfaces of the bottom member (20), the pair of left and right side walls (21, 21), and both side walls (21, 21). 3) and a pair of left and right supports (22, 22) for supporting
A support (22) has a base wall (28) fixed to the side wall (21), and a first support that supports the groove lid (3) by projecting from the upper edge of the base wall (28) toward the center of the groove. a plate (29), Ri Thea configured to include a second supporting plate which projects toward the groove center (30) from the underside of the base wall (28),
Fastening structures (10) for fastening the groove lid (3) to the support (22) are provided at a plurality of locations in the front-rear direction of the groove lid (3) .
The fastening structure (10) includes a fastening base (11) provided on the groove lid (3), a fastening plate (12) hooked on the lower surfaces of the pair of opposing first support plates (29), and a fastening base ( 11) and a screw structure (13) for fastening the fastening plate (12),
The fastening plate (12) can be freely inserted and removed from the pair of supports (22, 22) in the front-rear direction, but between the base walls (28, 28) of the pair of supports (22, 22). Rotation is set to an impossible length,
The groove lid (3) and the fastening plate (12) are fastened with a screw structure (13) in a state of sandwiching the first support plate (29) up and down,
A plate holder (49) that receives the periphery of the fastening plate (12) on the groove lid (3) and holds the plate (12) in an insertion posture in which the longitudinal direction intersects the front-rear direction of the support (22). ) Oh Ru drainage groove structure provided with a.

A reinforcing wall (31) having a peripheral edge that is flush with the lower surface and the protruding end surface of the first support plate (29) is integrated with the base wall (28) at either one of the front and rear ends of the base wall (28). The drainage groove structure according to claim 1, wherein

A support wall (32) for restricting the groove lid (3) from dropping into the water passage (35) of the receiving frame (2) is projected upward from the projecting end of the first support plate (29). The drainage groove structure according to 1 or 2 .

A reinforcing wall (31) is provided at one of the front and rear ends of the second support plate (30) of the support (22),
A plate guide plate (46) extending in the front-rear direction continuously to the other end of the second support plate (30) is provided,
In the process of temporarily assembling the groove lid (3) to the support (22), the groove lid (3) is directed to the support (22) in a state where the fastening plate (12) is received by the plate guide plate (46). The drainage groove structure according to any one of claims 1 to 3, wherein the drainage groove structure can be temporarily assembled by sliding .

The drainage groove structure according to any one of claims 1 to 4, wherein an insertion guide portion (47) for preventing catching on the base wall (28) is formed at corner portions at both ends of the fastening plate (12) .

Road pavement (1) is composed of permeable pavement (1A),
The drainage groove structure according to any one of claims 1 to 5 , wherein a plurality of water holes (23) are formed in the side wall (21) facing the water-permeable pavement (1A) of the receiving frame (2) .

Receiving frame (2) is formed by performing press working on a metal plate, a bottom member (20) and a pair of left and right side walls (21, 21) are according to any one of claims 1 that is provided integrally 6 Drainage structure.

The bottom member (20) of the receiving frame (2) is formed of a molding side groove (50) formed of concrete, and a pair of left and right side walls (21, 21) are provided on the upper surface of the molding side groove (50). The drainage groove structure according to any one of 1 to 6 .