Drain ditch cover

Abstract

To provide a drain ditch cover that can be placed even on a curved drain ditch.MEANS FOR SOLVING THE PROBLEM: A drain ditch cover has at least a main body, a pair of fixing parts each protruding on either side of the main body, a pair of arrangement parts each protruding on either side of the main body, and a pair of second fixing parts each protruding on either side of the main body. The drain ditch cover has a pair of first slits that provide gaps between the pair of fixing parts and the pair of arrangement parts, and a pair of second slits that provide gaps between the pair of arrangement parts and the pair of second fixing parts, and they are flexible.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a drain cover. [Background technology]

[0002] U-shaped gutters are installed on the shoulders of roads to drain rainwater. These gutters are known as drainage ditches and have an open top. Therefore, if leaves or other debris get into the gutters, it can be difficult for them to drain.

[0003] To solve such a problem, for example, a concrete block and cover may be used. For example, JP 2020-56245 A describes a gutter block with an open upper side, in which a flat surface for receiving a plurality of standardized covers is formed on the inside of the opposing side walls, and a first area facing one of the covers and having a protrusion formed from the inner surface on the inner surface of the side walls between the flat surface and the upper edge of the side walls, and a second area facing the other cover and not having the protrusion formed thereon. The document discloses "A lid to be placed on an upper-open gutter block having flat surfaces on opposing side walls and an inner surface of the side wall between the flat surfaces and the upper edge of the side wall, the lid being placed on the flat surfaces of the side walls, with the side edges facing the inner surface, convex portions formed on both side edges of the lid, the protruding amount c of the convex portions being defined as follows: when the distance between the opposing inner surfaces is A and the width of the lid is B, c is 3 / 4 to 1 / 4 of the value of (AB) x 1 / 2."

[0004] The gutter block and the cover to be placed on the gutter block disclosed in the above publication are, so to speak, made of concrete and can be said to be suitable for attachment to a gutter.

[0005] However, in cases where multiple drainage ditches are linear, it is possible to install gutter blocks and covers to cover those blocks. However, for example, there are cases where multiple drainage ditches arranged on the shoulder of a highway are curved along the highway, and it is difficult to install those gutter blocks and covers to cover those blocks so that they follow the curve. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2020-56245 A DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0007] The present invention has been made in light of the above-mentioned points, and an object of the present invention is to provide a drain cover that can be placed on a drain that is curved. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems, the drain cover having flexibility of the first aspect has at least a main body portion, a pair of fixing portions each protruding on either side of the main body portion, a pair of positioning portions each protruding on either side of the main body portion, and a pair of second fixing portions each protruding on either side of the main body portion, and has a pair of first slits that provide gaps between the pair of fixing portions and the pair of positioning portions, and a pair of second slits that provide gaps between the pair of positioning portions and the pair of second fixing portions.

[0009] In addition, a drain cover having flexibility according to a second aspect has at least a main body portion arranged to follow the flow direction of the drain, a pair of fixing portions each protruding in a direction intersecting the flow direction across the main body portion to fix it to the drain, a pair of arranging portions each protruding in a direction intersecting the flow direction across the main body portion, and a pair of second fixing portions each protruding in a direction intersecting the flow direction across the main body portion to fix it to the drain, the pair of fixing portions, the pair of arranging portions and the pair of second fixing portions are arranged to follow the flow direction of the drain, and the cover has a pair of first slits that provide gaps between the pair of fixing portions and the pair of arranging portions, and a pair of second slits that provide gaps between the pair of arranging portions and the pair of second fixing portions.

[0010] A flexible drain cover according to a third aspect has at least a main body portion, a pair of fixing portions each protruding across the main body portion, a pair of arrangement portions each protruding across the main body portion, a pair of second fixing portions each protruding across the main body portion, a pair of second arrangement portions each protruding across the main body portion, a pair of third fixing portions each protruding across the main body portion, a pair of third arrangement portions each protruding across the main body portion, and a pair of fourth fixing portions each protruding across the main body portion, and the pair of arrangement portions, a pair of second slits that form gaps between the pair of arrangement portions and the pair of second fixing portions, a pair of third slits that form gaps between the pair of second fixing portions and the pair of second arrangement portions, a pair of fourth slits that form gaps between the pair of second arrangement portions and the pair of third fixing portions, a pair of fifth slits that form gaps between the pair of third fixing portions and the pair of third arrangement portions, and a pair of sixth slits that form gaps between the pair of third arrangement portions and the pair of fourth fixing portions.

[0011] A drain cover having flexibility according to a fourth aspect includes at least a main body portion arranged to follow the flow direction of the drain, a pair of fixing portions each protruding in a direction intersecting the flow direction across the main body portion to fix the drain, a pair of arrangement portions each protruding in a direction intersecting the flow direction across the main body portion to fix the drain, a pair of second fixing portions each protruding in a direction intersecting the flow direction across the main body portion to fix the drain, a pair of second arrangement portions each protruding in a direction intersecting the flow direction across the main body portion to fix the drain, a pair of third fixing portions each protruding in a direction intersecting the flow direction across the main body portion to fix the drain, a pair of third arrangement portions each protruding in a direction intersecting the flow direction across the main body portion to fix the drain, The drain gutter has a pair of fixing parts, a pair of arrangement parts, a pair of second fixing parts, a pair of second arrangement parts, a pair of third fixing parts, a pair of third arrangement parts, and a pair of fourth fixing parts, which are arranged to follow the flow direction of the drain gutter, and has a pair of first slits that form gaps between the pair of fixing parts and the pair of arrangement parts, a pair of second slits that form gaps between the pair of arrangement parts and the pair of second fixing parts, a pair of third slits that form gaps between the pair of second fixing parts and the pair of second arrangement parts, a pair of fourth slits that form gaps between the pair of second arrangement parts and the pair of third fixing parts, a pair of fifth slits that form gaps between the pair of third fixing parts and the pair of third arrangement parts, and a pair of sixth slits that form gaps between the pair of third arrangement parts and the pair of fourth fixing parts.

[0012] In addition, a flexible drain cover according to a fifth aspect is any of the first to fourth aspects, in which the main body has an opening that opens and closes.

[0013] In addition, a drain cover having flexibility according to a sixth aspect is any one of the first to fourth aspects, in that the main body has an opening that opens and closes, and an opening / closing member that opens and closes the opening. Effect of the Invention

[0014] Since the present invention is constructed and operates as described above, it is possible to provide a drain cover that can be placed on a drain that is curved. [Brief description of the drawings]

[0015] [Figure 1] FIG. 2 is a plan view of the drain cover of the first embodiment. [Diagram 2] FIG. 11 is a plan view of a drain cover according to a second embodiment. [Diagram 3] 3A is a detailed view of the fixing portion, FIG. 3B is a detailed view of the fixing portion, and FIG. 3C is an enlarged view of the vicinity of line IIIC-IIIC in FIG. 2 and a cross-sectional view thereof. [Figure 4] 1 is a plan view showing a state in which a plurality of drain groove covers are attached to a plurality of drain grooves arranged in a straight line. [Diagram 5] FIG. 5 is a partially enlarged view of FIG. [Figure 6] 5A is a cross-sectional view taken along line VIA-VIA in FIG. 5. B is a cross-sectional view taken along line VIB-VIB in FIG. [Figure 7] FIG. 7 is a view taken along the arrow VII in FIG. 5. [Figure 8] 1 is a plan view showing a state in which a plurality of drain groove covers are attached to a plurality of drain grooves arranged in a curved shape. [Figure 9] FIG. 9 is a partially enlarged view of FIG. 8. [Figure 10] 10 is a view taken along the X arrow in FIG. 9. [Figure 11] 10 is a view taken along the arrow XI in FIG. 9. BEST MODE FOR CARRYING OUT THEINVENTION

[0016] Hereinafter, the drain cover 10 of the first embodiment will be described with reference to the illustrated embodiment. The drain cover 10 of the first embodiment is made of a sheet having elasticity and flexibility that can be bent, and is attached to the upper ends 510, 510 by folding it to close the drain 500 described later. In other words, it functions as a lid that closes the gap between the upper ends 510, 510 of the drain 500. Furthermore, since the drain cover 10 is flexible as described above, it can be restored to its original shape even if it is deformed because of its elasticity. Note that the drain cover 10 is preferably made of a rubber having elasticity such as CR (chloroprene rubber) or EPDM (ethylene propylene diene rubber) or a resin such as PP (polypropylene) or PE (polyethylene). Also, EVA (Ethylene-Vinyl Acetate, an ethylene-vinyl acetate copolymer resin) is preferable. Note that the drain cover 200 of the second embodiment described later is similar.

[0017] The drain cover 10 of the first embodiment has at least a main body 20 arranged along the flow direction R of the drain 500, a pair of fixing parts 30, 30' each protruding from the main body 20 in a direction perpendicular to the flow direction R in order to fix it to the drain 500, a pair of arrangement parts 40, 40' each protruding from the main body 20 in a direction perpendicular to the flow direction R, and a pair of second fixing parts 50, 50' each protruding from the main body 20 in a direction perpendicular to the flow direction R in order to fix it to the drain 500. Note that "protruding in a direction perpendicular to the flow direction R" refers to those protruding in an upward direction U perpendicular to the flow direction R and those protruding in a downward direction D perpendicular to the flow direction R. For example, it refers to the fixing part 30 protruding in the upward direction U perpendicular to the flow direction R and the fixing part 30' protruding in the downward direction D perpendicular to the flow direction R. In addition, the pair of fixing parts 30, 30', the pair of arrangement parts 40, 40', and the pair of second fixing parts 50, 50' are not necessarily limited to a direction perpendicular to the flow path direction R from the main body part 20, but may be arranged in a direction intersecting the main body part 20 (not shown). Note that the up-down UD direction refers to a direction perpendicular to the flow path direction R.

[0018] The main body 20 constitutes a part of the drain cover 10 of the first embodiment, and occupies the part surrounded by the dashed line in FIG. 1. However, the dashed line is not shown on the drain cover 10, but is a concept. The main body 20 is integrally connected to a pair of fixing parts 30, 30', a pair of arrangement parts 40, 40', and a pair of second fixing parts 50, 50'. The main body 20 also has a plurality of connecting holes 22 for inserting a string or the like. The connecting holes 22 in the adjacent drain covers 10, 10 can be connected to each other with a cable tie (not shown). This allows adjacent drain covers 10 to be connected to each other. The main body 20 has an opening 25 that opens, and an openable / closable member 27 is arranged in the opening 25. A part of the opening 25 is arranged so as to extend from the main body 20 to the arrangement part 40.

[0019] In addition, the drain cover 10 of the first embodiment has a pair of first slits 100, 100' which form gaps between the pair of fixing portions 30, 30' and the pair of positioning portions 40, 40', and a pair of second slits 120, 120' which form gaps between the pair of positioning portions 40, 40' and the pair of second fixing portions 50, 50'.

[0020] The pair of fixing portions 30, 30' are arranged to face each other across the main body portion 20. The pair of arrangement portions 40, 40' are arranged to face each other across the main body portion 20. The pair of second fixing portions 50, 50' are arranged to face each other across the main body portion 20. In this way, the drain cover 10 of the first embodiment has the pair of fixing portions 30, 30', the pair of arrangement portions 40, 40', and the pair of second fixing portions 50, 50' arranged, so to speak, line-symmetrically with respect to the main body portion 20.

[0021] The pair of fixing parts 30, 30', the pair of arrangement parts 40, 40', and the pair of second fixing parts 50, 50' are each arranged to follow the flow direction R of the drain 500. The fixing part 30 has a fixing member 31 that is fixed to the drain 500, and a first arrangement member 35 and a second arrangement member 36 that are arranged to engage with the drain 500. When the drain cover 10 of the first embodiment is attached to the drain 500, the fixing member 31 is fixed to the upper end 510 of the drain 500 by a concrete anchor P. The fixing member 31 has a mark M engraved thereon as a target for passing the concrete anchor P through it, and the concrete anchor P is passed through the mark M to fix the fixing member 31 to the upper end 510 of the drain 500.

[0022] When the drain cover 10 of the first embodiment is attached to the drain 500, the first arrangement member 35 and the second arrangement member 36 engage so as to contact the wall portion 520. The fixing portion 30 has a first fixing slit 38 which forms a gap between the fixing member 31 and the first arrangement member 35, and a second fixing slit 39 which forms a gap between the fixing member 31 and the second arrangement member 36. The second arrangement member 36 of the fixing member 31 is disposed so as to be adjacent to the arrangement portion 40 via the second fixing slit 39.

[0023] The fixing part 30 and the fixing part 30' are arranged symmetrically with each other. The fixing part 30' has a fixing member 31' that is fixed to the drainage groove 500, and a first arrangement member 35' and a second arrangement member 36' that are arranged to engage with the drainage groove 500. The fixing member 31' is also engraved with a target mark M' for passing the concrete anchor P through. As in these explanations, each component of the fixing part 30' is marked with "'", and the explanation of each component marked with "'" may be omitted and replaced with the explanation of each component not marked with "'". The same applies to each component below.

[0024] The second fixing part 50 has the same configuration as the fixing part 30, and may be assigned the same reference numerals and omitted from description, but will be described for the sake of confirmation. The second fixing part 50 has a fixing member 31 that is fixed to the drain 500, and a first arrangement member 35 and a second arrangement member 36 that are arranged to engage with the drain 500. When the drain cover 10 of the first embodiment is attached to the drain 500, the fixing member 31 is fixed to the upper end 510 of the drain 500 by the concrete anchor P, as described above. The first arrangement member 35 and the second arrangement member 36 are engaged to be in contact with the wall part 520. The second fixing part 50 has a first fixing slit 38 that is a gap between the fixing member 31 and the first arrangement member 35, and a second fixing slit 39 that is a gap between the fixing member 31 and the second arrangement member 36. When the drain cover 10 of the first embodiment is attached to the drain 500 , the first arrangement member 35 and the second arrangement member 36 are arranged so as to come into contact with the wall portion 520 .

[0025] The placement portion 40 is placed so as to be in contact with a wall portion 520 which is the wall of the drainage groove 500 as described below.

[0026] Next, a drain cover 200 of the second embodiment will be described. Like the drain cover 10 of the first embodiment, the drain cover 200 of the second embodiment is made of a sheet having elasticity and flexibility that can be bent, and comprises a main body 300 arranged along the flow path direction R of the drain 500, a pair of fixing parts 30, 30' each protruding from the main body 300 in a direction perpendicular to the flow path direction R in order to fix it to the drain 500, a pair of arrangement parts 40, 40' each protruding from the main body 300 in a direction perpendicular to the flow path direction R, and a pair of mounting parts 40, 40' each protruding from the main body 300 in a direction perpendicular to the flow path direction R in order to fix it to the drain 500. The nozzle has a pair of second fixing portions 50, 50' each protruding in a direction perpendicular to the flow path direction R, a pair of second arrangement portions 60, 60' each protruding from the main body portion 300 in a direction perpendicular to the flow path direction R, a pair of third fixing portions 70, 70' each protruding from the main body portion 300 in a direction perpendicular to the flow path direction R, a pair of third arrangement portions 80, 80' each protruding from the main body portion 300 in a direction perpendicular to the flow path direction R, and a pair of fourth fixing portions 90, 90' each protruding from the main body portion 300 in a direction perpendicular to the flow path direction R.

[0027] In this way, the drain cover 200 of the second embodiment has a pair of fixing portions 30, 30', a pair of positioning portions 40, 40', a pair of second fixing portions 50, 50', a pair of second positioning portions 60, 60', a pair of third fixing portions 70, 70', a pair of third positioning portions 80, 80', and a pair of fourth fixing portions 90, 90' arranged, so to speak, linearly symmetrically with respect to the main body portion 300.

[0028] That is, the pair of fixing portions 30, 30', the pair of arrangement portions 40, 40', the pair of second fixing portions 50, 50', the pair of second arrangement portions 60, 60', the pair of third fixing portions 70, 70', the pair of third arrangement portions 80, 80', and the pair of fourth fixing portions 90, 90' are preferably arranged in a direction perpendicular to the flow path direction R across the main body portion 300. Note that "protruding in a direction perpendicular to the flow path direction R" refers to those protruding in an upward direction U perpendicular to the flow path direction R and those protruding in a downward direction D perpendicular to the flow path direction R. For example, this means arranging fixed portion 30', arrangement portion 40', second fixed portion 50', second arrangement portion 60', third fixed portion 70', third arrangement portion 80', and fourth fixed portion 90' in an upward direction U perpendicular to the flow path direction R, and arranging fixed portion 30, arrangement portion 40, second fixed portion 50, second arrangement portion 60, third fixed portion 70, third arrangement portion 80, and fourth fixed portion 90 in a downward direction D perpendicular to the flow path direction R. Furthermore, the pair of fixing portions 30, 30', the pair of arrangement portions 40, 40', the pair of second fixing portions 50, 50', the pair of second arrangement portions 60, 60', the pair of third fixing portions 70, 70', the pair of third arrangement portions 80, 80', and the pair of fourth fixing portions 90, 90' are not necessarily limited to being arranged in a direction perpendicular to the flow path direction R across the main body portion 300, but may also be arranged in a direction intersecting the flow path direction R across the main body portion 300 (not shown).

[0029] The main body 300 constitutes a part of the drain cover 200 of the second embodiment, and occupies the area surrounded by the dashed line in FIG. 2. However, the dashed line is not shown on the drain cover 200, but is a concept. The main body 300 is integrally connected to a pair of fixing parts 30, 30', a pair of arrangement parts 40, 40', a pair of second fixing parts 50, 50', a pair of second arrangement parts 60, 60', a pair of third fixing parts 70, 70', a pair of third arrangement parts 80, 80', and a pair of fourth fixing parts 90, 90'. The main body 300 also has a connecting hole 322 for inserting a string or the like. The connecting holes 322 in the adjacent drain covers 200, 200 can be connected to each other with a cable tie (not shown). This allows adjacent drain covers 200 to be connected to each other. The main body 300 has openings 325, 325, 325, 325, 325, 325, and the openings 325, 325, 325, 325, 325, 325 are provided with openable and closable members 327, 327, 327, 327, 327, 327. Note that parts of the openings 325, 325, 325, 325, 325, 325 are arranged so as to extend from the main body 300 into the arrangement sections 40, 40', the second arrangement sections 60, 60', and the third arrangement sections 80, 80', respectively.

[0030] The pair of arrangement portions 40, 40' have the same configuration as the pair of arrangement portions 40, 40' in the drain cover 10 of the first embodiment. The pair of second arrangement portions 60, 60' and the pair of third arrangement portions 80, 80' have the same configuration as the pair of arrangement portions 40, 40'.

[0031] The pair of arrangement portions 40, 40', the pair of second arrangement portions 60, 60', and the pair of third arrangement portions 80, 80' are each adapted to engage with the drain groove 500, i.e., to be arranged so as to contact the wall portions 520, 520 of the drain groove 500.

[0032] The drain cover 200 of the second embodiment has a pair of first slits 100, 100' which form gaps between the pair of fixing parts 30, 30' and the pair of arrangement parts 40, 40', and a pair of second slits 120, 120' which form gaps between the pair of arrangement parts 40, 40 and the pair of second fixing parts 50, 50. The drain cover 200 also has a pair of third slits 130, 130' which form gaps between the pair of second fixing parts 50, 50' and the pair of second arrangement parts 60, 60'. The drain cover 200 also has a pair of fourth slits 140, 140' which form gaps between the pair of second arrangement parts 60, 60' and the pair of third fixing parts 70, 70'. The drain cover 200 also has a pair of fifth slits 150, 150' which form gaps between the pair of third fixing parts 70, 70' and the pair of third arrangement parts 80, 80'. Further, a pair of sixth slits 160, 160' are provided between the pair of third arrangement portions 80, 80' and the pair of fourth fixing portions 90, 90', respectively, to provide gaps.

[0033] The pair of fixing portions 30, 30' are arranged to face each other with the main body portion 300 in between. The pair of arrangement portions 40, 40' are arranged to face each other with the main body portion 300 in between. The pair of second fixing portions 50, 50' are arranged to face each other with the main body portion 300 in between. The pair of fixing portions 30, 30', the pair of arrangement portions 40, 40', and the pair of second fixing portions 50, 50' are each arranged in order along the flow path direction R of the drainage groove 500.

[0034] The fixing part 30, the second fixing part 50, the third fixing part 70, and the fourth fixing part 90 in the drain cover 200 of the second embodiment have the same configuration, and like the fixing part 30, they each have a fixing member 31 that is fixed to the drain 500, and a first arrangement member 35 and a second arrangement member 36 that contact a wall part 520 in the drain 500. The fixing member 31 is literally fixed to the upper end part 510 of the drain 500 by a concrete anchor P. That is, the fixing member 31 has a mark M engraved thereon as a target for penetrating the concrete anchor P, and the fixing member 31 can be fixed to the upper end part 510 of the drain 500 by penetrating the concrete anchor P through the mark M.

[0035] The fixing part 30', the second fixing part 50', the third fixing part 70', and the fourth fixing part 90' in the drain cover 200 of the second embodiment have the same configuration, and like the fixing part 30', they each have a fixing member 31' for fixing to the drain 500, and a first arrangement member 35' and a second arrangement member 36' that contact the wall part 520 of the drain 500. The fixing member 31' is literally fixed to the upper end part 510 of the drain 500 by a concrete anchor P. That is, the fixing member 31' has a mark M' engraved thereon as a target for penetrating the concrete anchor P, and the fixing member 31' can be fixed to the upper end part 510 of the drain 500 by penetrating the concrete anchor P through the mark M'.

[0036] The second fixing portion 50, the third fixing portion 70 and the fourth fixing portion 90 have the same configuration, and like the fixing portion 30, the first arrangement member 35 and the second arrangement member 36 contact the wall portion 520. Also, a first fixing slit 38 is provided between the fixing member 31 and the first arrangement member 35, and a second fixing slit 39 is provided between the fixing member 31 and the second arrangement member 36, providing a gap.

[0037] The second fixing part 50', the third fixing part 70' and the fourth fixing part 90' have the same configuration, and like the fixing part 30', the first arrangement member 35' and the second arrangement member 36' are in contact with the wall part 520. The first fixing slit 38' is a gap between the fixing member 31' and the first arrangement member 35', and the second fixing slit 39' is a gap between the fixing member 31' and the second arrangement member 36'. The dimension of one of the vertical UD directions of the drain cover 200 is preferably 500 mm, and the dimension of the flow path direction R is preferably 1000 mm. Thus, the dimension of the drain cover 200 in the vertical UD direction is preferably larger than the distance between the upper ends 510, 510 of the drain 500.

[0038] Next, a case where the drain cover 200 of the second embodiment is installed on a plurality of drains 500 will be described. First, a case where a plurality of drains are installed in a straight line in a plan view will be described. In a cross-sectional view of the drain cover 200 of the second embodiment, the main body 300 is folded to have a mountain shape, i.e., to have a curved shape, and the pair of arrangement parts 40, 40', the pair of second arrangement parts 60, 60', and the pair of third arrangement parts 80, 80' are arranged to be in contact with the wall parts 520, 520 of the drain 500. In addition, the pair of fixing parts 30, 30', the pair of second fixing parts 50, 50', the pair of third fixing parts 70, 70', and the pair of fourth fixing parts 90, 90' are attached to the upper end parts 510, 510 of the drain 500. Specifically, concrete anchors P, P are driven into the fixing members 31, 31' of the pair of fixing parts 30, 30', the pair of second fixing parts 50, 50', the pair of third fixing parts 70, 70', and the pair of fourth fixing parts 90, 90', respectively, to fix them to the upper ends 510, 510. Washers Z, Z may be used at this time. Also, the first placement members 35, 35' and the second placement members 36, 36' are placed so as to contact the wall parts 520, 520 of the drainage groove 500, respectively.

[0039] In this case, the main body 300 is bent to present a curved mountain shape in cross section, and the opening / closing member 327 cannot follow the main body 300, so the opening 325 opens. Thus, wastewater can flow into the drain groove 500 from the opening 325. Also, the pair of arrangement parts 40, 40', the pair of second arrangement parts 60, 60', and the pair of third arrangement parts 80, 80' are only in contact with the wall parts 520, 520 of the drain groove 500, so that when any one of the pair of arrangement parts 40, 40', the pair of second arrangement parts 60, 60', and the pair of third arrangement parts 80, 80' is pressed inward from the outside, any one of the pair of arrangement parts 40, 40', the pair of second arrangement parts 60, 60', and the pair of third arrangement parts 80, 80' is pressed inward from the outside, and wastewater can flow into the drain groove 500 from the outside.

[0040] Next, the drain grooves 500A are arranged in a curved shape in a plan view. The method of attaching the drain groove cover 200 of the second embodiment is almost the same as that described above, so only the differences will be described. When attaching the drain groove cover 200 of the second embodiment, the intervals between the first slit 100', the second slit 120', the third slit 130', the fourth slit 140', the fifth slit 150', and the sixth slit 160' of the drain groove covers 200 of the second embodiment arranged on the outer periphery of the curved drain groove 500A in a plan view are elastically expanded.

[0041] Conversely, the intervals between the first slits 100, the second slits 120, the third slits 130, the fourth slits 140, the fifth slits 150, and the sixth slits 160 arranged on the inner circumference of the drain groove 500A that is curved in plan view are narrowed. In this manner, the drain groove covers 200 of the second embodiment can be attached to each of the drain grooves 500A that are curved in plan view.

[0042] In this way, when constructing on-site, the first slit 100', the second slit 120', the third slit 130', the fourth slit 140', the fifth slit 150', and the sixth slit 160' can be easily arranged by elastically expanding the intervals between them so as to follow the curved drainage ditch 500A. Therefore, in order to attach a conventional concrete cover to such a drainage ditch 500A, it is necessary to prepare it in advance so that it follows the curved shape, but by expanding the intervals between each slit in advance on-site so that it follows the curved shape, such preparation is not necessary.

[0043] As described above, the drain cover 200 attached to the drain 500 and drain 500A is preferably made of EVA resin, which has impact resistance and resilience against fallen trees, is less likely to fall off, and is less likely to accumulate fallen leaves and other obstructions. The drain cover 200 before construction is flat, so it is not bulky, which is advantageous for storage and transportation. Even if dead leaves accumulate on the drain cover 200, they can be cleaned with a blower, which leads to a reduction in long-term cleaning costs.

[0044] Similarly, the drain cover 10 of the first embodiment can be attached by folding the main body 20, attaching the pair of fixing parts 30, 30' and the pair of second fixing parts 50, 50' to the upper ends 510, 510 of the drain 500, and arranging the pair of arrangement parts 40, 40' to be in contact with the wall parts 520, 520 of the drain 500. Similarly, in the case of a plurality of curved drain grooves 500, the drain cover 10 of the first embodiment can be attached by elastically expanding the first slit 100' and the second slit 120' to be arranged on the outer periphery.

[0045] In this way, at least the drain cover 10 of the first embodiment has a main body portion 20, a pair of fixing portions 30, 30', a pair of positioning portions 40, 40' and a pair of second fixing portions 50, 50', and is attached to the upper end portion 510, 510 of the drain 500, and has a pair of positioning portions 40, 40' and first slits 100, 100' and second slits 120, 120' which are the gaps between them, so that it can be attached to the drain 500 and the drain 500A (not shown). [Explanation of symbols]

[0046] 10 Drain cover of the first embodiment 20 Main body 25 325 Opening 27 327 Opening and closing parts 30 30′ fixed part 40 40′ arrangement part 50 50′ 2nd fixed part 60 60′ 2nd arrangement part 70 70′ 3rd fixed part 80 80′ 3rd arrangement part 90 90′ 4th fixed part 100 100′ First slit 120 120′ Second slit 130 130′ 3rd slit 140 140′ 4th slit 150 150′ 5th slit 160 160′ 6th slit 200 Second embodiment drain cover 300 Main unit 500 Drain 510 Upper end 520 Wall section R Flow direction

Claims

1. At least a main body portion; A pair of fixing portions each protruding from the main body portion; A pair of arrangement portions each protruding from the main body portion; a pair of second fixing portions each protruding from the main body portion, A pair of first slits that form gaps between the pair of fixing portions and the pair of arrangement portions; A flexible drain cover having a pair of second slits that form gaps between the pair of placement portions and the pair of second fixing portions.

2. A main body portion arranged to follow at least the flow direction of the drainage groove; A pair of fixing parts each protruding in a direction intersecting the flow path direction with the main body therebetween in order to fix the drainage groove; a pair of arrangement portions each protruding in a direction intersecting the flow path direction with the main body portion interposed therebetween; a pair of second fixing portions each protruding in a direction intersecting the flow path direction with the main body therebetween in order to fix the drainage groove; A pair of first slits that form gaps between the pair of fixing portions and the pair of arrangement portions; A flexible drain cover having a pair of second slits that form gaps between the pair of placement portions and the pair of second fixing portions.

3. At least a main body portion; A pair of fixing portions each protruding from the main body portion; A pair of arrangement portions each protruding from the main body portion; A pair of second fixing portions each protruding from the main body portion; a pair of second arrangement portions each protruding from the main body portion; a pair of third fixing portions each protruding from the main body portion; A pair of third arrangement portions each protruding from the main body portion; a pair of fourth fixing portions each protruding from the main body portion, A pair of first slits that form gaps between the pair of fixing portions and the pair of arrangement portions; A pair of second slits that form gaps between the pair of arrangement portions and the pair of second fixing portions; a pair of third slits that form gaps between the pair of second fixing portions and the pair of second arrangement portions; a pair of fourth slits that form gaps between the pair of second arrangement portions and the pair of third fixing portions; a pair of fifth slits that form gaps between the pair of third fixing portions and the pair of third arrangement portions; A flexible drain cover having a pair of sixth slits that form gaps between the pair of third placement portions and the pair of fourth fixing portions.

4. A main body portion arranged to follow at least the flow direction of the drainage groove; A pair of fixing parts each protruding in a direction intersecting the flow path direction with the main body therebetween in order to fix the drainage groove; a pair of arrangement portions each protruding in a direction intersecting the flow path direction with the main body portion interposed therebetween; a pair of second fixing portions each protruding in a direction intersecting the flow path direction with the main body therebetween in order to fix the drainage groove; a pair of second arrangement portions each protruding in a direction intersecting the flow path direction with the main body portion therebetween; a pair of third fixing portions each protruding in a direction intersecting the flow path direction with the main body therebetween in order to fix the drainage groove; a pair of third arrangement portions each protruding in a direction intersecting the flow path direction with the main body therebetween; a pair of fourth fixing portions each protruding in a direction intersecting the flow path direction with the main body therebetween in order to fix the drainage groove; A pair of first slits that form gaps between the pair of fixing portions and the pair of arrangement portions; A pair of second slits that form gaps between the pair of arrangement portions and the pair of second fixing portions; a pair of third slits that form gaps between the pair of second fixing portions and the pair of second arrangement portions; a pair of fourth slits that form gaps between the pair of second arrangement portions and the pair of third fixing portions; a pair of fifth slits that form gaps between the pair of third fixing portions and the pair of third arrangement portions; A flexible drain cover having a pair of sixth slits that form gaps between the pair of third placement portions and the pair of fourth fixing portions.

5. The flexible drain cover according to claim 1 , wherein the main body has an opening that opens and closes.

6. 5. The flexible drain cover according to claim 1, wherein the main body portion has an opening that opens and closes, and an opening / closing member that opens and closes the opening.

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