JP3191835U - Drainage groove for road surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage ditch for a road surface capable of effectively suppressing the growth of weeds with a simple configuration. SOLUTION: This is a road surface drainage groove 10 provided with a metal grating frame 11 embedded inside a road surface and having a gutter portion 12 formed on the upper portion, and is a length of a side wall portion 14 on at least one side of the grating frame. A weed control portion 20 having an N-shaped cross section having an inclined portion 25 along the direction is integrally formed. The weed control portion 20 is inclined from the first vertical portion 22 standing vertically, the second vertical portion 23 facing the first vertical portion, and the upper end of the first vertical portion toward the lower end of the second vertical portion. The weed control plate 21 having an N-shaped cross section having the inclined portion 25 provided is provided, and the second vertical portion of the weed control plate is joined along the longitudinal direction of the side wall portion of the grating frame. May be. [Selection diagram] Fig. 1

Description

  The present invention relates to a drainage groove for a road surface 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 a weed effectively with a simple structure.

  Specifically, the invention of claim 1 is a road surface drainage groove having 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 The road surface drainage groove is characterized in that a weed suppression portion having an N-shaped cross section having an inclined portion along the longitudinal direction is integrally formed.

  The invention of claim 2 is characterized in that the weed suppression part includes a first vertical part standing vertically, a second vertical part opposite to the first vertical part, and an upper end of the first vertical part. A weed suppression plate having an N-shaped cross section having the inclined portion provided to be inclined toward the lower end of the vertical portion, and the second vertical portion of the weed suppression plate is the longitudinal length of the side wall portion of the grating frame It concerns on the road surface drainage groove of Claim 1 formed by joining along a direction.

  The invention according to claim 3 relates to the drainage groove for road surface according to claim 2, wherein a joint portion between the weed suppression plate and the side wall portion of the grating frame is covered with a plating portion.

  4. The road surface drainage groove according to claim 2, wherein a reinforcing plate is provided between an inner surface of the first vertical portion of the weed suppression plate and a back surface of the inclined portion. Concerning.

  According to a fifth aspect of the present invention, the lower end of the first vertical portion of the weed suppression plate includes a raised wall portion extending downward from the lower end of the second vertical portion, and abuts against the lower end portion of the inclined portion. The road drainage groove according to claim 2 or 3, wherein a reinforcing plate is provided between the raised wall portion and a side wall portion of the grating frame.

  The invention according to claim 6 relates to the drainage groove for road surface according to claim 2 or 3, wherein a height adjusting member is disposed on a side wall portion of the grating frame body below the weed suppression plate.

  The invention according to claim 7 relates to the drainage groove for road surface according to claim 6, wherein the height adjusting member is a square pipe.

  The invention according to claim 8 relates to the drainage groove for road surface according to any one of claims 1 to 7, wherein the weed suppression part is integrally formed along the longitudinal direction of the side wall part on both sides of the grating frame. .

  The invention according to claim 9 relates to the drainage groove for road surface according to any one of claims 2 to 8, wherein an inclination angle of the inclined portion is 40 ° to 75 ° with respect to the first vertical portion.

  A drainage groove for a road surface according to the invention of claim 1 is a drainage groove for a road surface provided with a metal grating frame body embedded in a road surface and having a flange portion formed on the upper surface thereof, and is at least one of the grating frame body. Since the weed suppression portion having an N-shaped cross section having an inclined portion along the longitudinal direction of the side wall portion on the side is integrally formed, weed growth and reproduction can be suppressed with an extremely simple configuration.

  The invention of claim 2 is characterized in that, in claim 1, the weed suppression part comprises: a first vertical part that is erected vertically; a second vertical part that faces the first vertical part; and the first vertical part. A weed suppression plate having an N-shaped cross section having an inclined portion provided to be inclined from the upper end toward the lower end of the second vertical portion, and the second vertical portion of the weed suppression plate is the grating frame. Since it is formed by joining along the longitudinal direction of the side wall portion, the weed suppression portion can be formed by an extremely simple processing operation.

  The invention of claim 3 is the invention according to claim 2, wherein the joint portion between the weed suppression plate and the side wall portion of the grating frame is covered with a plated portion, so that the weed suppression plate and the grating frame are made more rigid. It becomes possible to join, and it becomes possible to prevent the generation | occurrence | production of the clearance gap of a junction part and to suppress the growth of weed from this clearance gap.

  The invention of claim 4 is the invention as set forth in claim 2 or 3, wherein a reinforcing plate is installed between the inner surface of the first vertical portion of the weed suppression plate and the back surface of the inclined portion. The strength can be improved and deformation can be suppressed.

  The invention of claim 5 is the invention according to claim 2 or 3, wherein a lower end of the first vertical portion of the weed suppression plate comprises a raised wall portion extending downward from a lower end of the second vertical portion, and the inclined portion. Since the reinforcing plate is installed between the raised wall portion and the side wall portion of the grating frame body, the position (depth) of the inclined portion from the upper surface of the road surface regardless of the installation location or the like. ) Is always the same, a stable weed suppression effect can be obtained, and the strength of the weed suppression section can be improved to suppress deformation.

  The invention of claim 6 is the road surface of the inclined portion according to claim 2 or 3, wherein a height adjusting member is arranged on the side wall portion of the grating frame body below the weed suppression plate. It is possible to obtain a stable weed suppression effect by always keeping the same position (depth) from the upper surface.

  According to a seventh aspect of the invention, in the sixth aspect, since the height adjusting member is a square pipe, the height adjusting member can be provided very easily.

  The invention of claim 8 is the invention according to claims 1 to 7, wherein the weed suppression portions are integrally formed along the longitudinal direction of the side wall portions on both sides of the grating frame, so that the weeds on both sides of the drainage groove for the road surface It is possible to effectively suppress the breeding of the plant, and it is possible to easily prepare an extremely good environment by suppressing the deterioration of the landscape and the prospect.

  The invention of claim 9 is that, in claim 2 to 8, the inclination angle of the inclined portion is 40 ° to 75 ° with respect to the first vertical portion, so that it can be processed more easily. A good weed suppression effect can be obtained.

It is a perspective view of a drain for a road surface concerning one example of the present invention. It is a top view of the drainage groove for road surfaces 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 the one side. It is sectional drawing 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 of the drainage groove for road surfaces which concerns on 5th Example. It is sectional drawing of the drainage groove for road surfaces which concerns on 6th Example. It is sectional drawing of the drainage groove for road surfaces which concerns on 7th Example. It is sectional drawing of the drainage groove for road surfaces which concerns on 8th 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.

  The drainage groove 10 for road surface which concerns on one Example of this invention shown in FIGS. 1-3 is embed | buried in road surface R, such as a water-permeable pavement part used for a road, a parking lot, etc., and rainwater etc. are carried out from the road surface R surface. A grating frame 11 that collects water and introduces water that has permeated into the road surface R is provided. In FIG. 3, 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 has a trough 12 that collects rainwater and the like from the road surface R on the upper portion, and drains it to an appropriate water distribution pipe or the like. It is a metal cylinder made of a metal plate such as a steel plate. The grating frame 11 of the embodiment is formed in a substantially inverted U-shaped cross section by a bottom plate portion 13 constituting a bottom portion and side wall portions 14 (14a, 14b) standingly opposed to both ends of the bottom plate portion 13. Then, the groove lid 15 is installed on the flange 12 at the top. In the figure, reference numeral 12a denotes an attachment member made of a bolt or the like for fixing a lid portion 15 to be described later to the flange portion 12.

  As shown in FIGS. 1 to 3, the groove lid 15 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 15 of the embodiment includes a main member 16 having an I-shaped cross section arranged side by side in the longitudinal direction, a reinforcing member 17 made of twisted steel or the like orthogonal to the main member 16 in a lattice shape, and the grating frame 11. It consists of a lid leg portion 18 for enabling standing, and is erected on the bottom plate portion 13 of the grating frame 11 and fixed to the flange portion 12 by an attachment member 12a.

  As shown in FIGS. 1 to 4, the road surface drainage groove 10 has an N-shaped weed suppression portion 20 having an inclined portion 25 along the longitudinal direction of the side wall portion 14 on at least one side of the grating frame 11. Are integrally formed.

  The weed suppression unit 20 is a single metal plate formed by using a known bending process, and as shown in FIGS. 3 and 4, the first vertical unit 22 erected vertically, An N-shaped cross section having a second vertical portion 23 facing the first vertical portion 22 and an inclined portion 25 provided to be inclined from the upper end of the first vertical portion 22 toward the lower end of the second vertical portion 23. A weed suppression plate 21 is provided. In the weed suppression section 20, the second vertical section 23 of the weed suppression plate 21 is joined along the longitudinal direction of the side wall section 14 of the grating frame 11.

  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 25. 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 25 in the side wall part 14, growth of a leaf, a stem, a root, etc. of a plant can be inhibited and the propagation of a plant can be suppressed. That is, in the weeds extending from the gap between the first vertical portion 22 and the road surface R of the weed suppression plate 21, when the leaves and stems further grow from the upper end of the first vertical portion 22, the inclined portion 25 causes the original growth direction. It is guided downward in the opposite direction to (upward). On the other hand, in the weed extending from the side wall 14 of the grating frame 11 or the second vertical portion 23 of the weed suppression plate 21 and the road surface R, when the root further grows from the lower end of the second vertical portion 23, the inclination is increased. The portion 25 is guided upward in the direction opposite to the original growth direction (downward). In this way, by inducing the growth of leaves, stems, roots, etc. in the direction opposite to the original direction by the inclined portion 25 of the weed suppression unit 20, it is possible to naturally suppress the growth of weeds and suppress the reproduction. It becomes.

  In the weed suppression unit 20, the inclination angle of the inclined unit 25 is 40 ° to 75 ° with respect to the first vertical unit 22 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 first vertical portion 22 and the inclined portion 25 and the bending angle between the inclined portion 25 and the second vertical portion 23 become too acute, making processing 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 47.9 degrees.

  Further, in the weed suppression unit 20, a joint portion 26 between the weed suppression plate 21 and the side wall portion 14 of the grating frame 11 is covered with a plating unit 27. The plated portion 27 is formed by a known hot dip galvanizing process. By forming the plated portion 27, it becomes possible to more firmly join the weed suppression plate 21 and the grating frame 11, and also prevent the occurrence of a gap in the joint 26 and grow the weed from this gap. Can be suppressed. Furthermore, in the hot dip galvanizing process, the weed suppression plate 21 made of a metal plate and the grating frame 11 are strengthened by heating to improve the strength. Therefore, the entire strength of the road surface drainage groove 10 can be improved by applying a hot dip galvanizing process.

  Furthermore, as shown in FIG. 5, the weed suppression unit 20 can be formed on the side wall portions 14 a and 14 b on both sides of the grating frame 11 and embedded in the road surface R. When the weed suppression part 20 is formed on both sides of the grating frame 11 and embedded in the road surface R, as shown in the figure, the weed suppression part 20 formed on the side wall part 14 on the other side (curbstone block B side) It arrange | positions so that the 1st vertical part 22 may contact | abut to the concrete layer M1. In addition, the code | symbol Rb of a figure is a road surface by 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. In the following embodiments, one side of the grating frame 11 is the roadway Rr side (the side opposite to the curb block B), and the other side is the curb block B side.

  In the drainage groove 10A for the road surface according to the first embodiment shown in FIG. 6, the weed suppression part 20 having the inclined part 25 is integrally formed on the side wall part 14a on one side of the grating frame 11, and the reinforcing plate 30 and the attachment A fixing unit 40.

  As shown in FIG. 6, the reinforcing plate 30 is fixedly installed between the inner side surface 22 a of the first vertical portion 22 of the weed suppression plate 21 and the back surface 25 a of the inclined portion 25 by known welding or the like. . Also, as shown in FIGS. 1 and 2, the grating frame 11 is provided at a plurality of locations in the longitudinal direction. In the reinforcing plate 30, the inclined portion 25 is supported from the lower side by being installed between the inner surface 22 a of the first vertical portion 22 and the back surface 25 a of the inclined portion 25. The strength is improved, and deformation of the weed suppression unit 20 when a load is applied to the road surface R by passing a vehicle or the like can be suppressed.

  As shown in FIGS. 1, 2, and 6, the attachment fixing portion 40 includes a fixing plate portion 41 in which a lower portion of the first vertical portion 22 of the weed suppression plate 21 is extended outward by a known bending process, and the fixing plate The portion 41 has fixing holes 42 provided at a plurality of locations, and fixing members (not shown) such as anchor bolts are inserted through the fixing holes 42 to fix the grating frame 11 in the road surface R. Moreover, you may provide the 2nd attachment fixing | fixed part 43 with a substantially L-shaped cross section in the several lower part of the side wall part 14b of the other side of the grating frame 11 on the opposite side of the attachment fixing | fixed part 40 as needed.

  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. Further, the reinforcement plate 30 can effectively suppress the deformation of the weed suppression unit 20.

  The road surface drainage groove 10B according to the second embodiment shown in FIG. 7 includes a weed suppression unit 20 having inclined portions 25 on the side wall portions 14a and 14b on both sides (the curb block B side and the roadway Rr side) of the grating frame 11. 20 are integrally formed, and the weed suppression portions 20 and 20 are provided with reinforcing plates 30 and 30 and attachment fixing portions 40 and 40, respectively. 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. Moreover, the deformation | transformation of both weed suppression parts 20 and 20 can be effectively suppressed by each having the reinforcement boards 30 and 30 constructed by the weed suppression parts 20 and 20 on both sides.

  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 25 on a side wall part 14a on one side of the grating frame 11, and includes an attachment fixing part 45. . The attachment fixing portion 45 includes a fixing plate portion 46 laid between the lower portion of the first vertical portion 22 and the lower portion of the second vertical portion 23 along the longitudinal direction of the weed suppression plate 21, and a plurality of places on the fixing plate portion 46. And a fixing member (not shown) such as an anchor bolt is inserted through the fixing hole to fix the grating frame 11 in the road surface R. In this road surface drainage groove 10C, 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 flange 12 of the road surface drainage groove 10C are connected. The propagation of weeds can be effectively suppressed.

  The road surface drainage groove 10D according to the fourth embodiment shown in FIG. 9 includes a weed suppression section 20 having inclined sections 25 on the side walls 14a and 14b on both sides (the curb block B side and the roadway Rr side) of the grating frame 11. 20 are integrally formed, and the weed suppression portions 20 and 20 are provided with attachment fixing portions 45 and 45, respectively. In this road surface drainage groove 10D, on both the road surface Rb between the curb block B and the flange portion 12 of the road surface drainage groove 10B and the road surface Rr between the flange portion 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.

  In the drainage groove 10E for the road surface according to the fifth embodiment shown in FIG. 10, the weed suppression part 20 having the inclined part 25 is integrally formed on the side wall part 14a on one side of the grating frame 11, and the raised wall part 24, The reinforcing plate 35, the attachment fixing part 40, and the curbstone placing member 50 are provided.

  The raised wall portion 24 is a portion formed by extending the lower end of the first vertical portion 22 of the weed suppression plate 21 downward from the lower end of the second vertical portion 23, and adjusts the position (height) of the inclined portion 25. It is possible. In particular, when the road surface drainage groove 10 having various sizes (height of the side wall portion 14) is installed according to the installation location or the like, the extending length (height) of the raised wall portion 24 is set to the grating frame 11. If it adjusts suitably according to the magnitude | size (height of the side wall part 14), the position (depth) from the road surface R upper surface of the inclination part 25 irrespective of the magnitude | size (height of the side wall part 14) of the grating frame 11 ) Can be set substantially equal. As a result, the position (depth) of the inclined portion 25 from the upper surface of the road surface R can be made the same regardless of the installation location and the like, and a stable weed suppression effect can be obtained. An attachment fixing portion 40 is formed at the lower portion of the raised wall portion 24 formed by extending the lower end of the first vertical portion 22 downward.

  As shown in FIG. 10, the reinforcing plate 35 is in contact with the lower end portion of the inclined portion 25 and is fixed between the raised wall portion 24 and the side wall portion 14 (14a) of the grating frame 11 by known welding or the like. Is built. In addition, the reinforcing plates 35 are provided at a plurality of locations in the longitudinal direction of the grating frame 11 similarly to the reinforcing plate 30. In this reinforcing plate 35, the lower end portion of the inclined portion 25 is supported from the lower side, and the raised wall portion 24 is supported from the side surface. Therefore, the strength of the weed suppressing portion 20 is improved, and the road surface R is passed by a vehicle or the like. Deformation of the weed suppression unit 20 when a load is applied can be suppressed.

  As shown in FIG. 10, the curbstone placing member 50 is a member for placing the curb block B disposed on the road surface R, and the weed suppression part is provided only on the side wall part 14 a on one side of the grating frame 11. When 20 is provided, it is formed along the longitudinal direction of the other side wall portion 14b as necessary. The curb placing member 50 of the embodiment is formed of a square pipe having a substantially horizontal placing surface 51 on which at least a part of the curb block B can be placed, and is joined to the other side wall portion 14b by welding or the like. This joining portion may be subjected to a known hot dip galvanizing process. In addition, a fixing hole portion (not shown) for fixing members such as anchor bolts is provided at a plurality of positions in the longitudinal direction of the weed suppression plate 21 in the bottom portion 52 of the curbstone mounting member 50 made of a square pipe, if necessary. The grating frame 11 may be fixed. Thus, by providing the curbstone placing member 50, it is possible to easily install the curb block B, and the construction work can be performed easily and efficiently.

  In this road surface drainage groove 10E, the position (depth) of the inclined portion 25 from the upper surface of the road surface R can always be made the same by the raised wall portion 24, and a stable weed control effect can be obtained. By arranging the weed suppression unit 20 on the opposite side, weed propagation between the road surface R on the roadway Rr side and the ridge portion 12 of the road drainage groove 10A can be effectively suppressed. In addition, the reinforcement plate 35 can effectively suppress the deformation of the weed suppression unit 20.

  The road surface drainage groove 10F according to the sixth embodiment shown in FIG. 11 includes a weed suppression unit 20 having inclined portions 25 on the side wall portions 14a and 14b on both sides (the curb block B side and the roadway Rr side) of the grating frame 11. 20 are integrally formed, and each weed suppression part 20, 20 includes raised wall parts 24, 24, reinforcing plates 35, 35, and attachment fixing parts 40, 40. In this road drainage groove 10F, the raised wall portion 24 can always obtain the same weed control effect with the position (depth) of the inclined portion 25 from the upper surface of the road surface R being the same, and the curb block B and the road drainage groove can be obtained. It is possible to effectively suppress the weed propagation on both the road surface Rb between the ridge part 12 of 10F and the road surface Rr between the ridge part 12 of the road surface drain groove 10B and the roadway, It is possible to easily prepare a very good environment by suppressing the deterioration of the prospects. Moreover, the deformation | transformation of both the weed suppression parts 20 and 20 can be effectively suppressed by respectively installing the reinforcement boards 35 and 35 in the weed suppression parts 20 and 20 on both sides.

  The road surface drainage groove 10G according to the seventh embodiment shown in FIG. 12 is integrally formed with the weed suppression part 20 having the inclined part 25 on the side wall part 14a on one side of the grating frame 11, and the curbstone placing member 50 and And a height adjusting member 60.

  As shown in FIG. 12, the height adjusting member 60 is a member arranged on the side wall portion 14 (14 a) of the grating frame body 11 below the weed suppression plate 21, and the inclined portion 25 as with the raised wall portion 24. The position (height) can be adjusted. The height adjusting member 60 of the embodiment is a square pipe, and the lower end of the first vertical portion 22 and the lower end of the inclined portion 25 (the lower end of the second vertical portion 23) are welded to the upper surface 61 of a substantially horizontal plane. Etc. are joined together. Further, in the bottom 62 of the height adjusting member 60 made of a square pipe, if necessary, fixing holes (not shown) for fixing members such as anchor bolts are provided at a plurality of positions in the longitudinal direction of the weed suppression plate 21. The grating frame 11 may be fixed.

  In the height adjusting member 60, the height of the adjusting member 60 is set to a grating frame particularly when the road surface drainage groove 10 having various sizes (height of the side wall portion 14) is installed according to the installation location or the like. By appropriately adjusting according to the size of the body 11 (height of the side wall portion 14), the position of the inclined portion 25 from the upper surface of the road surface R regardless of the size of the grating frame 11 (height of the side wall portion 14). (Depth) can be set substantially equal. As a result, the position (depth) of the inclined portion 25 from the upper surface of the road surface R can be made the same regardless of the installation location and the like, and a stable weed suppression effect can be obtained.

  In this road drainage groove 10G, the height adjustment member 60 can always obtain the same weed control effect with the same position (depth) of the inclined portion 25 from the upper surface of the road surface R. The road Rr side (curb block B) By disposing the weed suppression part 20 on the opposite side), weed propagation between the road surface R on the roadway Rr side and the eaves part 12 of the road surface drain groove 10A can be effectively suppressed.

  The drainage groove 10H for the road surface according to the eighth embodiment shown in FIG. 13 includes a weed restraining portion 20 having inclined portions 25 on the side wall portions 14a and 14b on both sides (the curb block B side and the roadway Rr side) of the grating frame 11. 20 are integrally formed, and the weed suppression units 20 and 20 are provided with height adjusting members 60 and 60, respectively. In this road surface drain groove 10H, the height adjusting member 60 can always obtain the same weed control effect with the position (depth) of the inclined portion 25 from the upper surface of the road surface R being the same, and the curb block B and the road surface drainage can be obtained. Propagation of weeds in both the road surface Rb between the ridge 12 of the groove 10F and the road surface Rr between the ridge 12 of the road drainage groove 10B and the roadway can be effectively suppressed. It is possible to easily prepare a very good environment by suppressing the deterioration of the prospects.

  As shown and described above, the road surface drainage groove 10 of 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. At least one of the grating frames 11 is provided. Since the weed suppression part 20 having an N-shaped cross section having the inclined part 25 along the longitudinal direction of the side wall part 14 on the side is integrally formed, weed growth and reproduction can be suppressed with a very simple configuration. .

  In particular, the weed suppression unit 20 includes a first vertical unit 22 erected vertically, a second vertical unit 23 facing the first vertical unit 22, and a second vertical unit 23 from the upper end of the first vertical unit 22. And a weed suppression plate 21 having an N-shaped cross section having an inclined portion 25 provided to be inclined toward the lower end of the second vertical portion 23 of the weed suppression plate 21 in the longitudinal direction of the side wall portion 14 of the grating frame 11. Since it forms by joining along a direction, a weed control part can be formed by a very simple processing operation. And if the inclination-angle of the inclination part 25 shall be 40 degrees-75 degrees with respect to the 1st perpendicular part 22, while being able to process more easily, a favorable weed suppression effect can be acquired.

  Moreover, if the joint part 26 of the weed suppression plate 21 and the side wall part 14 of the grating frame 11 is covered with the plating part 27, the weed suppression plate 21 and the grating frame 11 can be more firmly joined. In addition, it is possible to prevent the formation of a gap in the joint portion 26 and suppress the growth of weeds from this gap.

  Furthermore, if the reinforcement board 30 is constructed between the inner surface 22a of the 1st vertical part 22 of the weed suppression plate 21, and the back surface 25a of the inclination part 25, the inclination part 25 will be supported from the lower side and the weed suppression part 20 will be supported. It is possible to improve the strength of the weeds, and it is possible to suppress the deformation of the weed suppression unit 20 when a load is applied to the road surface R due to passage of a vehicle or the like.

  In addition, the lower end of the first vertical portion 22 of the weed suppression plate 21 is a raised wall portion 24 extending downward from the lower end of the second vertical portion 23, and is brought into contact with the lower end portion of the inclined portion 25, and the raised wall If the reinforcing plate 35 is installed between the portion 24 and the side wall portion 14 of the grating frame body 11, the raised wall portion 24 causes the inclined portion 25 of the inclined portion 25 regardless of the size of the grating frame body 11 (height of the side wall portion 14). Since the position (depth) from the upper surface of the road surface R can be set substantially equal, the position (depth) of the inclined portion 25 from the upper surface of the road surface R is always the same regardless of the installation location, etc. Since the reinforcing plate 35 supports the lower end portion of the inclined portion 25 from the lower side and the raised wall portion 24 from the side surface, the strength of the weed suppressing portion 20 is improved and the vehicle passes on the road surface R. When a load is applied by It is possible to suppress deformation of weed control portion 20.

  Further, if the height adjusting member 60 is arranged on the side wall portion 14 of the grating frame 11 below the weed suppression plate 21, the inclined portion 25 of the inclined portion 25 can be obtained regardless of the size of the grating frame body 11 (height of the side wall portion 14). Since the position (depth) from the upper surface of the road surface R can be set substantially equal, the position (depth) of the inclined portion 25 from the upper surface of the road surface R is always the same regardless of the installation location, etc. Can be obtained. And it becomes possible to provide the height adjustment member 60 very easily by making the height adjustment member 60 into a square pipe.

  Furthermore, if the weed suppression parts 20 and 20 are integrally formed along the longitudinal direction of the side wall parts 14a and 14b on both sides of the grating frame 11, both sides of the road drainage groove 10 (for example, the curb block B side and the roadway side). ) 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.

  The road surface drainage groove of the present invention is not limited to the above-described embodiment, and can be implemented by appropriately changing a part of the configuration without departing from the spirit of the invention. For example, in the embodiment, when the weed suppression portion is provided on the side wall portion on one side of the grating frame body, the road surface drainage groove is disposed so that the weed suppression portion is on the side of the roadway opposite to the curb block ( As shown in FIG. 5, 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 second mounting and fixing portion 43 for fixing the grating frame 11 is provided on the other side wall portion 14b on the road surface Rr side, and the first vertical portion 22 of the weed control portion 20 is concrete. It abuts on the layer M1.

DESCRIPTION OF SYMBOLS 10 Road surface drainage groove 11 Grating frame body 12 Gutter part 13 Bottom plate part 14 Side wall part 15 Groove cover 20 Weed control part 21 Weed control part 22 First vertical part 23 Second vertical part 24 Raised wall part 25 Inclined part 30, 35 Plate 40 Mounting fixing part 50 Curbstone mounting member 60 Height adjusting member B Curb block R Road surface

Claims (9)

  A drainage groove for a road surface provided with a metal grating frame body embedded in a road surface and having a flange formed on the upper portion thereof, wherein an inclined portion is provided along a longitudinal direction of at least one side wall portion of the grating frame body. A road surface drainage groove, wherein a weed suppression portion having an N-shaped cross section is integrally formed.   The weed suppression part includes a first vertical part standing vertically, a second vertical part facing the first vertical part, and an upper end of the first vertical part toward a lower end of the second vertical part. A weed suppression plate having an N-shaped cross section having the inclined portion provided to be inclined, and joining the second vertical portion of the weed suppression plate along the longitudinal direction of the side wall of the grating frame. The road surface drainage groove according to claim 1, which is formed by:   The drainage groove for a road surface according to claim 2, wherein a joint portion between the weed suppression plate and the side wall portion of the grating frame is covered with a plating portion.   The drainage groove for road surfaces according to claim 2 or 3, wherein a reinforcing plate is provided between an inner surface of the first vertical portion of the weed suppression plate and a back surface of the inclined portion.   The lower end of the first vertical portion of the weed suppression plate is a raised wall portion extending downward from the lower end of the second vertical portion, abuts against the lower end portion of the inclined portion, and the raised wall portion and the The road surface drainage groove according to claim 2 or 3, wherein a reinforcing plate is provided between the side wall portion of the grating frame.   The drainage groove for road surfaces according to claim 2 or 3, wherein a height adjusting member is disposed on a side wall portion of the grating frame body below the weed suppression plate.   The road drainage groove according to claim 6, wherein the height adjusting member is a square pipe.   The road surface drainage groove according to any one of claims 1 to 7, wherein the weed suppression portions are integrally formed along a longitudinal direction of side wall portions on both sides of the grating frame.   The road surface drainage groove according to any one of claims 2 to 8, wherein an inclination angle of the inclined portion is 40 ° to 75 ° with respect to the first vertical portion.

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