JP5669915B1 - Drainage groove for road surface - Google Patents

Abstract

A road surface drainage ditch that can effectively suppress weed propagation with a simple configuration. A road surface drainage groove (10) having a metal grating frame (11) embedded in a road surface (R) and having a flange (12) formed at an upper portion thereof, and a side wall portion (16) on at least one side of the grating frame (11). A weed suppression portion 20 having an N-shaped cross section having an inclined portion 22 along the longitudinal direction is integrally formed. The weed suppression unit 20 includes a lower vertical surface portion 21 erected so as to be vertically below the road surface R from the bottom plate portion 15 of the grating frame body 11, and an inner side of the grating frame body 11 from the upper end of the lower vertical surface portion 21. An inclined portion 22 that is inclined and extended downward in the direction and an upper vertical surface portion 23 that extends in the vertical direction from the lower end of the inclined portion 22 and forms the flange 12 together with the opposing side wall portion 16 are integrally formed. Formed. [Selection] Figure 1

Description

  The present invention relates to a road drainage groove embedded in a road surface such as a road or a parking lot.

  In recent years, a water-permeable pavement formed of water-permeable asphalt or the like has been frequently used in order to improve the drainage of road surfaces such as roads. In such a water-permeable pavement, rainwater or the like on the road surface flows on the upper surface of the road surface and penetrates into the pavement, and is collected and drained in the drainage channel.

  In this type of drainage channel structure, a metal road drainage drain having a cylindrical waterflow portion with a ridge formed at the top and a lid attached to the ridge of the waterflow portion is provided inside the road surface. A structure is known in which rainwater and the like are collected from the surface of the road surface and at the same time the water that has permeated into the permeable pavement is introduced (see, for example, Patent Document 1). This drainage groove for road surface is easy to process and has excellent durability, and is lighter than concrete products, so it can simplify workability on site, and the lid can be removed and inspected, cleaned and replaced. It can be implemented easily and efficiently.

  However, on the road surface where the drainage groove for road surface is buried, a slight gap is generated due to secular change at the boundary part between the pavement part and curb stone and the drainage groove for road surface, and weeds are introduced by plant seeds entering the gap. May breed. When weeds propagated in this way, the landscape deteriorated and the roadside prospects worsened, increasing the danger, so complicated management such as regular mowing was necessary.

Japanese Patent No. 3930826

  This invention is made | formed in view of the said point, and provides the drainage groove for road surfaces which can suppress the propagation of weeds effectively with a simple structure.

That is, the invention of claim 1 is a road surface drainage groove comprising a metal grating frame body embedded in the road surface and having a flange portion formed on the upper portion thereof, and the side wall portion on at least one side of the grating frame body Along the longitudinal direction of the grating frame body from the bottom plate portion of the grating frame in a vertical direction to be below the road surface in the vertical direction, from the upper end of the lower vertical surface portion of the grating frame body in the inner direction An N-shaped cross section formed integrally with an inclined portion that is inclined downward and an upper vertical surface portion that extends in the vertical direction from the lower end of the inclined portion and forms the flange with the opposing side wall portion. In this case, the road surface drainage groove is characterized in that a weed suppression portion is formed , and a ridge-like water-permeable hole is formed in a continuous portion between the lower vertical surface portion and the inclined portion .

  According to a second aspect of the present invention, there is provided the road surface drainage groove according to the first aspect, wherein the weed suppression portions are integrally formed along the longitudinal direction of the side wall portions on both sides of the grating frame.

  According to a third aspect of the present invention, the weed suppression portion is integrally formed along the longitudinal direction of the side wall portion on one side of the grating frame, and is disposed on the road surface along the longitudinal direction of the side wall portion on the other side. The road surface drainage groove according to claim 1, wherein a step portion for mounting the curb block is formed.

The invention according to claim 4 relates to the road surface drain groove according to any one of claims 1 to 3 , wherein an inclination angle of the inclined portion is 40 ° to 75 ° with respect to the lower vertical surface portion.

According to a fifth aspect of the present invention, there is provided a reinforcing plate having a support concave portion for supporting a connecting portion between the inclined portion and the upper vertical surface portion below the flange portion, from the side wall portion on the one side to the side wall portion on the other side. It concerns on the drainage groove for road surfaces of any one of Claim 1 thru | or 4 constructed over.

According to a sixth aspect of the present invention, in the drainage groove for a road surface according to the fifth aspect , a second reinforcing plate that is joined to the upper surface of the inclined portion and the outer surface of the upper vertical surface portion is provided. Related.

A seventh aspect of the present invention relates to the road surface drainage groove according to any one of the first to sixth aspects, wherein a trough permeable hole is formed in a continuous portion between the inclined portion and the upper vertical surface portion.

The invention according to claim 8 relates to the drainage groove for road surface according to any one of claims 1 to 7 , wherein a lid is attached to the flange portion of the grating frame.

A drainage groove for road surface according to the invention of claim 1 is a drainage groove for road surface provided with a metal grating frame body embedded in the road surface and having a flange portion formed thereon, and is at least one of the grating frame body. A lower vertical surface portion erected from the bottom plate portion of the grating frame body in the vertical direction along the longitudinal direction of the side wall portion on the side so as to be below the road surface, and the grating frame from the upper end of the lower vertical surface portion An inclined portion that is inclined and extended downward in the body inner direction, and an upper vertical surface portion that extends in the vertical direction from the lower end of the inclined portion and forms the flange with the opposing side wall portion are integrally formed. is weed control portion of the cross-section N-shape formation, since the crest permeable pores in the joint portion between the lower vertical surface and said inclined portion is formed, weed growth and breeding in a very simple machining operation and configuration it is possible to suppress, road Drainage can be effectively improved in.

  The invention of claim 2 is that in claim 1, the weed suppression part is integrally formed along the longitudinal direction of the side wall part on both sides of the grating frame, so that weed breeding on both sides of the drainage groove for road surface Can be effectively suppressed, and it is possible to easily prepare a very good environment by suppressing deterioration of the landscape and the prospects.

  According to a third aspect of the present invention, in the first aspect, the weed suppression portion is integrally formed along the longitudinal direction of the side wall portion on one side of the grating frame, and the longitudinal direction of the side wall portion on the other side is Since the step part for mounting the curb block arrange | positioned on a road surface is formed, construction work can be performed simply and efficiently.

The invention of claim 4 is that in claim 1 to 3 , the inclination angle of the inclined portion is 40 ° to 75 ° with respect to the lower vertical surface portion, so that it can be processed more easily, A good weed suppression effect can be obtained.

According to a fifth aspect of the present invention, there is provided the reinforcing plate according to any one of the first to fourth aspects, wherein the reinforcing plate having a supporting concave portion for supporting a connecting portion between the inclined portion and the upper vertical surface portion is provided on the one side wall portion. Since it is constructed over the other side wall, the drainage can be efficiently drained without disturbing the flow of collected rainwater, etc., and the weed control part can be improved in strength and deformed. Can be suppressed.

According to a sixth aspect of the invention, according to claim 5, since the second reinforcing plate to be the joint upper surface of the inclined portion and the outer surface of the upper vertical surface on the upper surface of the inclined portion is provided, weed control unit The strength can be further improved and deformation can be suppressed more effectively.

A seventh aspect of the present invention is that in any one of the first to sixth aspects, since a trough permeable hole is formed in a continuous portion between the inclined portion and the upper vertical surface portion, a continuous portion between the inclined portion and the upper vertical surface portion. It is possible to efficiently drain rainwater and the like accumulated in the water.

The invention according to claim 8 is the invention according to claims 1 to 7 , wherein a lid is attached to the flange portion of the grating frame body, so that the entry of fallen leaves and dust into the grating frame body is effectively suppressed. Can do.

It is a perspective view of the drainage groove for roads concerning one example of the present invention. It is sectional drawing showing the example of installation of the drainage groove for road surfaces in which the weed suppression part was formed in the one side. It is sectional drawing of the grating frame of FIG. It is a top view of the grating frame of FIG. It is sectional drawing showing the example of installation of the drainage groove for road surfaces in which the weed suppression part was formed in both sides. It is sectional drawing of the drainage groove for road surfaces which concerns on 1st Example. It is sectional drawing of the drainage groove for road surfaces which concerns on 2nd Example. It is sectional drawing of the drainage groove for road surfaces which concerns on 3rd Example. It is sectional drawing of the drainage groove for road surfaces which concerns on 4th Example. It is sectional drawing showing the installation example of the drainage groove for road surfaces in which the weed control part was formed in the curb block side. It is sectional drawing showing the installation example of the drainage groove for road surfaces in which the step part was formed in the side wall part by the side of the curb block. It is sectional drawing showing the other example of installation of the drainage groove for road surfaces in which the weed suppression part was formed in both sides.

  1 and 2, a road surface drainage groove 10 according to an embodiment of the present invention is embedded in a road surface R such as a water-permeable pavement used for roads and parking lots, and collects rainwater and the like from the surface of the road surface R. A grating frame 11 for introducing water that has permeated into the road surface R is provided. In FIG. 2, B is a curb block, M1 is a concrete layer, M2 is a foundation material layer, R1 is a dense grained asphalt layer of the permeable pavement R, R2 is a coarse grained asphalt layer of the permeable pavement R, and R3 is water permeable The crushed stone layer, Rr, of the pavement portion R represents the road surface on the opposite side of the curb block B.

  As shown in FIGS. 1 to 4, the grating frame 11 is embedded in the road surface R, and a steel plate 12 is formed in the upper portion to collect rainwater and the like from the road surface R, and drains it to an appropriate water pipe or the like. It is a metal cylindrical body which consists of metal plates, such as. The grating frame 11 includes a bottom plate portion 15 constituting a bottom portion and side wall portions 16 and 16 erected so as to face both ends of the bottom plate portion 15, and at least in the longitudinal direction of the side wall portion 16a on one side. A weed suppression portion 20 having an N-shaped cross section having an inclined portion 22 is integrally formed. In the illustrated example, the weed suppression part 20 is formed only on the side wall part 16a on one side (the roadway Rr side opposite to the curb block B). In each figure, reference numeral 15a denotes a bent side portion of the bottom plate portion for improving the strength of the attachment portion with each side wall portion 16, 16, 16b denotes the other side wall portion, and 17 denotes at least one (for example, a crushed stone layer R3 or the like). These are mounting fixing portions for fixing the grating frame 11 provided at a plurality of locations below the side wall portion 16 (16a) of the concrete layer M1 on the opposite side.

  The weed suppression unit 20 is a single metal plate formed by using a known bending process. As shown in FIGS. 3 and 4, the road surface R extends in the vertical direction from the bottom plate unit 15 of the grating frame 11. A lower vertical surface portion 21 erected so as to be on the lower side, an inclined portion 22 extending obliquely downward from the upper end of the lower vertical surface portion 21 toward the inner side of the grating frame 11, and the inclined portion 22 The upper vertical surface part 23 which forms the collar part 12 with the side wall part (16) extended in the perpendicular direction from the lower end of this is formed integrally.

  The weed suppression unit 20 suppresses the growth and reproduction of plants (weeds) by utilizing the phototropism and refracting property of the plant by the inclination of the inclined portion 22. Here, the nature of the plant due to its phototropism and territoriality will be explained. The plant is such that the leaves, stems, roots, etc. of the plant bend in a predetermined direction by light stimulation or gravity stimulation. It is known that it grows upward and does not grow downward, and the root grows downward and does not grow upward. Then, by providing the weed suppression part 20 which has the inclination part 22 in the side wall part 16, the growth of a leaf, a stem, a root, etc. of a plant can be inhibited and propagation of a plant can be suppressed. That is, in the weeds extending from the gap between the lower vertical surface portion 21 of the grating frame 11 and the road surface R, when the leaves and stems further grow from the upper end of the lower vertical surface portion 21, the inclined portion 22 causes the original growth direction (upward The direction is guided downward in the opposite direction. On the other hand, in the weeds extending from the gap between the upper vertical surface portion 23 of the grating frame 11 and the road surface R, when the root further grows from the lower end of the upper vertical surface portion 23, the original growth direction (downward) is caused by the inclined portion 22. Is guided upward in the opposite direction. In this way, the inclined portion 22 of the weed suppression unit 20 induces the growth of leaves, stems, roots, and the like in the opposite direction to the original direction, thereby suppressing the growth of weeds and suppressing the reproduction. It becomes.

  In the weed suppression unit 20, the inclination angle of the inclined unit 22 is 40 ° to 75 ° with respect to the lower vertical surface unit 21 from the viewpoint of easy processing and obtaining a good weed suppression effect. When the inclination angle is less than 40 °, the bending angle between the lower vertical surface portion 21 and the inclined portion 22 and the bending angle between the inclined portion 22 and the upper vertical surface portion 23 become too acute, and machining becomes difficult. On the other hand, when the inclination angle is larger than 75 °, it is difficult to sufficiently prevent the growth of weeds due to the gradual inclination and the phototropism and refracting property. In addition, the inclination angle of an Example is 46,6 degrees.

  In the grating frame 11, as shown in FIGS. 1 to 4, a reinforcing plate 30 having a support recessed portion 31 that supports a continuous portion of the inclined portion 22 and the upper vertical surface portion 23 is provided on one side below the flange portion 12. It extends from the side wall part 16a to the other side wall part 16b. As shown in FIG. 4, the reinforcing plate 30 is provided at a plurality of locations in the longitudinal direction of the grating frame 11, and is fixed to the side wall portions 16a and 16b by known welding or the like. In this reinforcing plate 30, the continuous portion of the inclined portion 22 and the upper vertical surface portion 23 is supported from the lower side to improve the strength. Therefore, the weed suppression portion 20 when a load is applied to the road surface R due to passage of a vehicle or the like. Can be suppressed. Moreover, in the reinforcement board 30, the water flow opening part 32 can be formed in the lower part by spanning between each side wall part 16a, 16b. Therefore, it is possible to drain the water efficiently without hindering the flow of rainwater or the like collected in the grating frame 11 via the collar portion 12.

  Moreover, in the grating frame 11, as shown in FIGS. 1-4, the 2nd reinforcement board 35 joined to the upper surface of the inclination part 22 and the upper surface of the inclination part 22 and the outer surface of the upper vertical surface part 23 is provided. Yes. As shown in FIGS. 1 and 4, the second reinforcing plate 35 is provided at a plurality of locations in the longitudinal direction of the grating frame 11, and the upper surface of the inclined portion 22 and the outer surface of the upper vertical surface portion 23 by known welding or the like. It is fixed to. In this 2nd reinforcement board 35, since the intensity | strength of the inclination part 22 of the weed suppression part 20 improves by joining with the upper surface of the inclination part 22, and the outer surface of the upper vertical surface part 23, respectively, the passage of a car etc. to the road surface R, etc. Therefore, when the load is applied, it is possible to more effectively suppress the deformation of the weed suppressing portion 20 such as the inclined portion 22 and the upper vertical surface portion 23 expanding. Further, the installation position of the second reinforcing plate 35 is not particularly limited, but the second reinforcing plate 35 can be more efficiently reinforced by being provided on the upper surface side of the inclined portion 22 that is the same as the installation position of the reinforcing plate 30. Note that the upper end of the second reinforcing plate 35 is formed so as to be at a position substantially equal to or below the connecting portion of the lower vertical surface portion 21 and the inclined surface 22.

  Furthermore, in the grating frame 11, as shown in FIGS. 1 to 4, a trough permeable hole 40 is formed in a trough-shaped continuous portion of the inclined portion 22 and the upper vertical surface portion 23. As shown in FIGS. 1 and 4, the valley water permeable holes 40 are provided at a plurality of locations in the longitudinal direction of the grating frame 11. Although it does not specifically limit as a shape of the trough water-permeable hole 40, In the Example, it is formed in the long hole shape. In this trough permeable hole 40, when rainwater or the like that has permeated from the road surface R accumulates in a continuous portion between the inclined portion 22 and the upper vertical surface portion 23, the water is efficiently drained through the grating frame 11. Can do.

  In addition, in the grating frame 11, as shown in FIGS. 1 to 4, a mountain-shaped water-permeable hole 45 is formed in a mountain-shaped continuous portion of the lower vertical surface portion 21 and the inclined portion 22. As shown in FIGS. 1 and 4, the mountain portion water-permeable holes 45 are provided at a plurality of locations in the longitudinal direction of the grating frame 11. Although it does not specifically limit as a shape of the mountain part water-permeable hole 45, In the Example, it forms in circular shape. In the mountain portion water permeable holes 45, rainwater or the like in the road surface R can be passed through the grating frame 11 to effectively improve water drainage on the road surface R. Since water easily collects at the boundary between the dense grained asphalt layer R1 and the coarse grained asphalt layer R2 on the road surface R, as shown in FIG. 2, when the road drainage groove 10 is buried, By disposing 45 at a position corresponding to the boundary portion between the dense particle size asphalt layer R1 and the coarse particle size asphalt layer R2, the water draining effect of the road surface R can be further improved.

  Moreover, in this grating frame 11, as shown in FIG. 5, it is also possible to form the weed suppression part 20 in the side wall parts 16a and 16b of both sides, and to embed it in the road surface R. When the weed suppression part 20 is formed in the side wall parts 16a and 16b on both sides, the reinforcing plate 30 integrally includes support recesses 31 and 31 that individually support the weed suppression parts 20 on both sides, and lower vertical surface parts on both sides. It is constructed between 21 and 21. In addition, when the grating frame 11 having the weed suppression part 20 on both sides is embedded in the road surface R, as shown in the figure, the weed suppression part 20 formed on the side wall part 16b on the other side (curbstone block B side) The lower vertical surface portion 21 is disposed so as to contact the concrete layer M1. In the figure, the symbol Rb represents the road surface on the curb block B side.

  Next, various variations of the road surface drainage groove 10 will be described with reference to FIGS. In the following description, the same reference numerals represent the same configuration and the description thereof is omitted.

  The road surface drainage groove 10A according to the first embodiment shown in FIG. 6 has a weed suppression portion 20 having an inclined portion 22 on one side wall portion 16a, and is integrally formed with a reinforcing plate 30, a second reinforcing plate 35, And a lid 50. In the embodiment, the weed suppression section 20 is formed on the roadway Rr side opposite to the curb block B. In the figure, reference numeral 13 denotes a placement portion for placing a lid portion 50 described later, and 14 denotes an attachment portion 14 for the lid portion 50.

  As shown in FIGS. 1, 2, and 6, the lid portion 50 is attached to the flange portion 12 of the grating frame body 11 and suppresses the entry of fallen leaves, dust, and the like into the grating frame body 11. The lid portion 50 of the embodiment includes a main member 51 having an I-shaped cross section arranged in parallel in the longitudinal direction, and a reinforcing member 52 made of twisted steel or the like orthogonal to the main member 51 in a lattice shape. It mounts on the mounting part 13 and is fixed to the attaching part 14 using the bolt member etc. which are not shown in figure. In the figure, reference numeral 53 denotes a side plate portion that abuts the mounting portion 13 of the flange portion 12, and 54 denotes an attachment recess for the attachment portion 14 of the flange portion 12.

  In this road surface drainage groove 10A, the weed control part 20 is arranged on the roadway Rr side (opposite side of the curb block B), so that the road surface R on the roadway Rr side and the ridge part 12 of the road surface drainage groove 10A. The propagation of weeds can be effectively suppressed. In addition, the reinforcement plate 30 and the second reinforcement plate 35 can more effectively suppress the deformation of the weed suppression unit 20, and the lid unit 50 can effectively prevent fallen leaves and dust from entering the grating frame 11. Can be suppressed.

  The drainage groove 10B for the road surface according to the second embodiment shown in FIG. 7 is integrally formed with the weed suppression portion 20 along the longitudinal direction of the side wall portions 16a, 16b on both sides (the curb block B side and the roadway Rr side). The reinforcing plate 30, the second reinforcing plate 35, the valley water permeability hole 40, and the lid portion 50 are provided. In this road surface drain groove 10B, both on the road surface Rb between the curb block B and the flange portion 12 of the road surface drain groove 10B and on the road surface Rr between the flange portion 12 of the road surface drain groove 10B and the roadway. Weed growth can be effectively suppressed, and it is possible to easily prepare a very good environment by suppressing the deterioration of the landscape and the prospects. Further, the deformation of the weed suppression unit 20 is more effectively suppressed by the reinforcing plate 30 and the second reinforcing plate 35, and rainwater or the like accumulated in the continuous portion of the inclined portion 22 and the upper vertical surface portion 23 by the valley portion water transmission hole 40, etc. Can be efficiently drained, and the lid portion 50 can effectively suppress the entry of fallen leaves and dust into the grating frame 11.

  The road surface drainage groove 10C according to the third embodiment shown in FIG. 8 is integrally formed with a weed suppression part 20 having an inclined part 22 on a side wall part 16a on one side (the roadway Rr side opposite to the curb block B). And a narrow groove-like flange portion 12a, a reinforcing plate 30, a second reinforcing plate 35, and a mountain portion water-permeable hole 45. The narrow groove-shaped flange portion 12a is formed by arranging the upper vertical surface portion 23 and the side wall portion 16b on the other side close to each other. Therefore, it is possible to effectively suppress the entry of fallen leaves and dust into the grating frame 11 without attaching the lid 50 such as the road drain grooves 10A and 10B.

  In this road surface drainage groove 10C, the weed suppression part 20 is arranged on the roadway Rr side (opposite side of the curb block B), so that the road surface R on the roadway Rr side and the ridge part 12 of the road surface drainage groove 10A are arranged. The propagation of weeds can be effectively suppressed. Further, the reinforcement plate 30 and the second reinforcement plate 35 more effectively suppress the deformation of the weed suppression unit 20, and the mountain-side water-permeable holes 45 improve the drainage of the road surface R (Rr), thereby forming the narrow groove-shaped flange 12 a. Thus, intrusion of fallen leaves, dust, etc. into the grating frame 11 can be effectively suppressed.

  The road surface drainage groove 10D according to the fourth embodiment shown in FIG. 9 is integrally formed with the weed suppression part 20 along the longitudinal direction of the side wall parts 16a, 16b on both sides (the curb block B side and the roadway Rr side), A narrow groove-shaped flange portion 12a, a reinforcing plate 30, a second reinforcing plate 35, a valley portion water passage hole 40, and a mountain portion water passage hole 45 are provided. In this road surface drainage groove 10D, on both the road surface Rb between the curb block B and the flange part 12 of the road surface drainage groove 10D and the road surface Rr between the flange part 12 of the road surface drainage groove 10D and the roadway. Weed growth can be effectively suppressed, and it is possible to easily prepare a very good environment by suppressing the deterioration of the landscape and the prospects. Further, the deformation of the weed suppression unit 20 is more effectively suppressed by the reinforcing plate 30 and the second reinforcing plate 35, and the connection between the inclined portion 22 and the upper vertical surface portion 23 is performed by the valley water passage hole 40 and the mountain water passage hole 45. It is possible to efficiently drain rainwater and the like accumulated on both the installation portion and the road surface R, and the narrow groove-like ridge portion 12a can effectively suppress the entry of fallen leaves and dust into the grating frame 11. it can.

  As illustrated and described above, the road surface drainage groove 10 according to the present invention includes a metal grating frame 11 embedded in the road surface R and having a flange 12 formed on the upper portion thereof, and at least one of the grating frames 11 is provided. Since the weed suppression portion 20 having an N-shaped cross section having the inclined portion 22 along the longitudinal direction of the side wall portion 16 on the side is integrally formed, the growth and reproduction of weeds can be suppressed with a very simple configuration. .

  In particular, the weed suppression unit 20 is erected so as to be vertically below the road surface in the vertical direction from the bottom plate portion 15 of the grating frame body 11, and the grating frame body 11 from the upper end of the lower vertical surface portion 21. An inclined portion 22 that is inclined and extended downward in the inward direction, and an upper vertical surface portion 23 that extends in the vertical direction from the lower end of the inclined portion 22 and forms the flange portion 12 together with the opposing side wall portion 16 are integrated. Therefore, the weed suppression unit 20 can be formed by an extremely simple processing operation. And if the inclination-angle of the inclination part 22 shall be 40 degrees-75 degrees with respect to the lower vertical surface part 21, while being able to process more easily, a favorable weed suppression effect can be acquired.

  Moreover, if the weed suppression part 20 is integrally formed along the longitudinal direction of the side wall parts 16a and 16b on both sides of the grating frame 11, the both sides (for example, the curb block B side and the roadway side) of the road drainage groove 10 are formed. Weed growth can be effectively suppressed, and it is possible to easily prepare a very good environment by suppressing the deterioration of the landscape and the prospects.

  Further, a reinforcing plate 30 having a supporting recess 31 for supporting a continuous portion of the inclined portion 22 and the upper vertical surface portion 23 is provided below the flange portion 12 from the side wall portion 16a on one side to the side wall portion 16b on the other side. By erection, it is possible to efficiently drain water without interfering with the circulation of rainwater collected in the grating frame 11 through the collar portion 12, and improve the strength of the weed control portion 20. Deformation can be suppressed.

  In addition, if the second reinforcing plate 35 to be joined to the upper surface of the inclined portion 22 and the outer surface of the upper vertical surface portion 23 is provided on the upper surface side of the inclined portion 22, the strength of the weed suppressing portion 20 is further improved and the deformation is further improved. It can be effectively suppressed.

  Further, by forming the trough permeable holes 40 in the connecting portion between the inclined portion 22 and the upper vertical surface portion 23, the rainwater collected in the connecting portion between the inclined portion 22 and the upper vertical surface portion 23 can be used as a grating frame. 11 can be drained efficiently by passing water through the inside.

  Further, by forming a mountain-shaped water-permeable hole 45 in a continuous portion between the lower vertical surface portion 21 and the inclined portion 22, rainwater or the like in the road surface R is allowed to flow into the grating frame 11, thereby draining the road surface R. It can be improved effectively.

  In addition, by attaching the lid portion 40 to the flange portion 12 of the grating frame body 11, it is possible to effectively suppress the entry of fallen leaves and dust into the grating frame body 11.

  The road surface drainage groove of the present invention is not limited to the above-described embodiments, and can be implemented by appropriately changing a part of the configuration without departing from the spirit of the invention. For example, valley perforated holes and mountain perforated holes formed in the road drainage grooves of the first to fourth embodiments are appropriately combined into a grating frame according to the use of the road drainage grooves. Can be formed. That is, do not form both the trough perforation hole and the mountain permeation hole, form only the trough permeation hole, form only the trough permeation hole, form both the trough permeation hole and the mountain permeation hole, etc. Are appropriately selected.

  In the embodiment, when the weed suppression part is provided on the side wall part on one side of the grating frame body, the drainage groove for the road surface is disposed so that the weed suppression part is on the side of the roadway opposite to the curb block. As shown in FIG. 2, the road surface drainage groove 10 may be disposed so that the weed suppression section 20 is on the curb block B side. When arranged in this manner, weed growth on the road surface Rb between the curb block B and the ridge portion 12 of the road drainage groove 10 can be effectively suppressed, and the opposite side of the curb block B (the roadway) The load of an automobile or the like passing through the side) is unlikely to act on the weed suppression unit 20, and deformation can be significantly suppressed. As shown in the figure, the mounting fixing portion 17 for fixing the grating frame 11 is provided on the side wall portion 16b on the other side which is the road surface Rr side, and the lower vertical surface portion 21 of the weed suppression portion 20 is on the concrete layer M1. Abutted.

  Furthermore, when the weed control part is provided on the side wall part on one side of the grating frame body, as shown in FIG. 11, the curb block disposed on the road surface R along the longitudinal direction of the other side wall part 16b. You may form the step part 18 for mounting B. FIG. The step portion 18 is a substantially horizontal plane extending from the side wall portion 16b on the other side so that at least a part of the curb block B can be placed in the outer direction of the grating frame 11. Thus, by providing the step part 18 for mounting the curb block B, it becomes possible to easily install the curb block B, and the construction work can be performed simply and efficiently. In this figure, reference numeral 19 is an inclined side wall portion inclined along the inclined surface of the curb block B, and M3 is a mortar layer interposed between the curb block B and the concrete layer M1 and the curb block B and the step portion 18. is there.

  Moreover, in the Example, although it was set as the structure which embeds the drainage groove for road surfaces in the road surface in which the curb block was installed in one side (refer FIG.2,5), as shown in FIG. 12, the road surface R in which a curb block is not installed (For example, the drainage grooves 10 for the road surface may be embedded in the roadway Rr on both sides). When both sides of the road surface drainage groove 10 become the road surface R, the weed suppression portions 20 are integrally formed on the side wall portions 16a and 16b on both sides of the grating frame 11, respectively. Thereby, even if it is a case where the road surface drain ditch 10 is embed | buried in the road surface R without a curb block, the growth and reproduction of a weed can be effectively suppressed on both sides of the road surface drain ditch 10.

  In addition, in the Example of FIGS. 10-12, it can be selected suitably whether the structure of the collar part of each drainage groove for road surfaces is made into a narrow grooved collar part, or a cover part is installed.

DESCRIPTION OF SYMBOLS 10 Road surface drainage groove 11 Grating frame body 12 Gutter part 15 Bottom plate part 16 Side wall part 20 Weed control part 21 Lower vertical surface part 22 Inclination part 23 Upper vertical surface part 30 Reinforcement board 31 Support recessed part 35 2nd reinforcement board 40 Valley part water-permeable hole 45 Mountain perforated hole 50 Lid B Curb block R Road surface

Claims (8)

A drainage groove for a road surface provided with a metal grating frame body embedded in a road surface and having a collar portion formed on the upper portion thereof , wherein the grating is formed along a longitudinal direction of at least one side wall portion of the grating frame body. A lower vertical surface portion erected from the bottom plate portion of the frame vertically to the lower side of the road surface, and an inclination extending from the upper end of the lower vertical surface portion downward in the inner direction of the grating frame body A weed suppression part having an N-shaped cross section is formed integrally with an inclined part and an upper vertical surface part that extends in the vertical direction from the lower end of the inclined part and forms the flange with the opposing side wall part , A drainage groove for a road surface, wherein a mountain permeable hole is formed at a continuous portion between a lower vertical surface portion and the inclined portion .   The drainage groove for a road surface according to claim 1, wherein the weed suppression portions are integrally formed along a longitudinal direction of side wall portions on both sides of the grating frame.   The weed control part is integrally formed along the longitudinal direction of the side wall part on one side of the grating frame, and the curb block disposed on the road surface is placed along the longitudinal direction of the other side wall part. The drainage groove for road surfaces according to claim 1, wherein a step portion is formed. The road surface drainage groove according to any one of claims 1 to 3 , wherein an inclination angle of the inclined portion is 40 ° to 75 ° with respect to the lower vertical surface portion. A reinforcing plate having a supporting concave portion for supporting a connecting portion between the inclined portion and the upper vertical surface portion is installed from the side wall portion on one side to the side wall portion on the other side below the flange portion. The drainage groove for road surfaces according to any one of claims 1 to 4 . The road drainage groove according to claim 5 , wherein a second reinforcing plate that is joined to the upper surface of the inclined portion and the outer surface of the upper vertical surface portion is provided on the upper surface side of the inclined portion. The drainage groove for road surfaces according to any one of claims 1 to 6, wherein a trough water-permeable hole is formed in a continuous portion between the inclined portion and the upper vertical surface portion. The road surface drainage groove according to any one of claims 1 to 7 , wherein a lid portion is attached to the flange portion of the grating frame.

Images