Dust tray device and dust tray set

Abstract

To provide a dust tray device which resists being washed away even under water pressure.SOLUTION: A dust tray device 10 arranged on a groove 1 covered with a groove cover 5 or inside the groove 1 includes a net part 11 that intersects with the water channel inside the groove 1, a column part 12 that is provided on the net part 11 and extends upward, and a supported part 13 supported by the groove cover or groove. The supported part 13 is provided on at least one of the net part 11 and the column part 12.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a dust tray device that collects dust and the like that has entered a groove or the like. [Background technology]

[0002] As a dust tray device to be placed in a groove or the like, for example, a dust remover has been proposed which is characterized by comprising: a support member formed by combining rod-shaped members and / or pipe-shaped members; a bag-shaped mesh body having an opening and accommodating the support member through the opening, and having a storage section along the opening for accommodating a string for closing the opening or adjusting the size of the opening; and a string that is stored in the storage section of the mesh body (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2019-77997 Summary of the Invention [Problem to be solved by the invention]

[0004] The dust removal device (dust tray device) is simply placed in the groove, and if a large amount of dust accumulates on the mesh, there is a risk that it will be washed away by the water pressure. An object of the present invention is to provide a dust tray device that is not easily washed away even when subjected to water pressure. [Means for solving the problem]

[0005] The dust tray device of the present invention is a dust tray device arranged in a groove or in a groove covered by a groove cover, and comprises a mesh portion that intersects with a waterway in the groove, a support portion that is provided on the mesh portion and extends upward, and a supported portion that is supported on at least one of the groove cover and the groove, and the supported portion is provided on at least one of the mesh portion and the support portion. The dust tray set of the present invention is a dust tray set in which at least two dust tray devices for grooves are arranged from the upstream side to the downstream side of the groove, wherein the dust tray devices are the dust tray devices described above, and the mesh opening of the mesh part of the upstream dust tray device is larger than the mesh opening of the mesh part of the downstream dust tray device. [Effects of the Invention]

[0006] According to the above configuration, since the supported portion is provided, it is difficult for the device to be swept away even when subjected to water pressure. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 2 is a cross-sectional perspective view illustrating a state in which the dust tray device according to the embodiment is placed in a groove. [Figure 2] 1A is a view of the dust tray device as seen from the water channel direction, and FIG. 1B is a view of the dust tray device as seen from a direction (width direction) perpendicular to the water channel direction. [Figure 3] 1A and 1B are perspective views of a dust tray device, where FIG. 1A is a view from above and FIG. 1B is a view from below. [Figure 4] 1(a) is a perspective view from above of a dust tray device having a supported portion shown in Example 2, and FIG. 1(b) is a perspective view from above of a dust tray device having a supported portion shown in Example 3. FIG. [Figure 5] 10(a) is a perspective view of a dust tray device having a supported portion shown in Example 4, seen from above, and FIG. 10(b) is a perspective view of a dust tray device having a supported portion shown in Example 5, seen from above. [Figure 6] 10(a) is a cross-sectional view of the supported portion shown in Example 6, and FIG. 10(b) is a cross-sectional view of the supported portion shown in Example 7. FIG.

[0008] <Summary>

[0009] A first dust tray device according to one aspect of the embodiment is a dust tray device disposed in a groove or a groove covered with a groove lid, and includes a mesh portion that intersects with a waterway in the groove, a support portion that is provided on the mesh portion and extends upward, and a supported portion that is supported on at least one of the groove lid and the groove, the supported portion being provided on at least one of the mesh portion and the support portion. This makes it possible to provide a dust tray device that is not easily swept away even when subjected to water pressure. A second dust tray device according to another aspect of the embodiment is the first dust tray device, wherein the supported portion is supported by engaging with the groove cover, thereby providing a dust tray device that is less likely to be washed away even when subjected to water pressure. A third dust tray device according to another aspect of the embodiment is the second dust tray device, wherein the groove cover has a recess or a through-hole formed on the underside thereof, and the supported portion engages with the recess or the through-hole. This makes it possible to provide a grooved dust tray device that is less likely to be washed away by utilizing the recess or the through-hole. A fourth dust tray device according to another aspect of the embodiment is the first dust tray device, wherein the groove covers are multiple and the supported portion is supported by being disposed between two adjacent groove covers, thereby providing a dust tray device that is less likely to be washed away even when subjected to water pressure. A fifth dust tray device according to another aspect of the embodiment is the fourth dust tray device, wherein the supported portion has a plate-like portion disposed between the two adjacent groove covers, thereby enabling the groove covers to sandwich the supported portion with their surfaces from the waterway direction, thereby providing a device that is less likely to be washed away.

[0010] A sixth dust tray device according to another aspect of the embodiment is the dust tray device of the fourth or fifth aspect, wherein the groove has a groove portion and a groove lid mounting portion on which the groove lid is placed, the groove portion is covered by the groove lid, the groove lid mounting portion is located outside the groove portion in a direction perpendicular to the waterway and the up-down direction, and the supported portion has a portion that protrudes from the groove portion side toward the groove lid mounting portion in the perpendicular direction, thereby allowing the device to be supported from the waterway direction by the groove lid. A seventh dust tray device according to another aspect of the embodiment is the first dust tray device, wherein the groove is covered with a groove cover, and the supported portion is supported by being placed on a groove cover placement portion on which the groove cover is placed, thereby providing a dust tray device that is less likely to be washed away even when subjected to water pressure. An eighth dust tray device according to another aspect of the embodiment is the dust tray device of the first aspect, wherein the supported portion is supported by contacting the inner surface of the groove, thereby providing a dust tray device that is less likely to be washed away even when subjected to water pressure.

[0011] A ninth dust tray device according to another aspect of the embodiment is the first dust tray device, wherein the supported portion includes a facing portion that faces the inner surface, and a biasing means that biases the facing portion toward the inner surface or an expansion / contraction mechanism that expands and contracts the facing portion relative to the inner surface. This makes it possible to provide a groove-type dust tray device that is easy to install and is not easily washed away by water pressure. A tenth dust tray device according to another aspect of the embodiment is the dust tray device of any one of the first to ninth embodiments, wherein the supported portions are a pair in a direction perpendicular to the water channel and the up-down direction, and the pair of supported portions are connected by a connecting portion, thereby improving the strength of the device itself. An eleventh dust tray device according to another aspect of the embodiment is the dust tray device of any one of the first to tenth embodiments, further comprising a second net portion provided along the water channel from a lower end portion of the net portion, whereby the second net portion can capture and collect the dust blocked by the net portion. A twelfth dust tray device according to another aspect of the embodiment is the eleventh dust tray device, wherein the second mesh portion has a second bottom mesh portion facing the bottom surface of the groove and a second side mesh portion facing the side surface of the groove, thereby making it possible to capture dust and the like that escapes from the mesh portion to the side surface of the groove.

[0012] A thirteenth dust tray device according to another aspect of the embodiment is the dust tray device of the eleventh or twelfth embodiment, wherein the second mesh portion is provided on both sides of the mesh portion in the waterway direction, thereby allowing the device to be used reversibly in the flow direction. A fourteenth dust tray device according to another aspect of the embodiment is the thirteenth dust tray device, wherein the second mesh portion on both sides in the waterway direction is configured such that the second mesh portion on the downstream side of the waterway is longer in the waterway direction than the second mesh portion on the upstream side of the waterway. This makes the downstream side longer, thereby improving the support stability of the device. A fifteenth dust tray device according to another aspect of the embodiment is a dust tray device according to any one of the eleventh to fourteenth embodiments, wherein the second net portion of the second net unit is supported from the inner surface of the groove by a second frame portion that surrounds the peripheral edge of the second net portion. This allows the second frame portion to surround the bottom of the second net portion, improving the durability of the second net portion. Furthermore, since the second frame portion supports the second net portion from below when the device is lifted, it is strong. Furthermore, it can efficiently capture debris that floats on the water surface and flows down.

[0013] A sixteenth dust tray device according to another aspect of the embodiment is the dust tray device of any one of the eleventh to fifteenth embodiments, wherein the upper end of the mesh portion is positioned higher than the upper end of the second mesh portion, so that even if dust captured by the second mesh portion breaks off, it can still be captured by the mesh portion. A seventeenth dust tray device according to another aspect of the embodiment is the dust tray device of any one of the first to sixteenth embodiments, wherein a gap portion without a mesh portion is provided between the upper end of the groove and the mesh portion, thereby allowing water to escape (reducing water pressure) even if the groove overflows with water due to a flood or the like. An eighteenth dust tray device according to another aspect of the embodiment is the dust tray device of any one of the first to seventeenth embodiments, wherein the support members and the mesh member are made of a metal material, thereby providing a dust tray device that is less likely to break. A 19th dust tray device according to another aspect of the embodiment is the dust tray device of any one of the first to eighteenth embodiments, wherein the mesh openings of the mesh portion are within the range of 1.54 to 1.84 mm. This makes it possible to more reliably capture small debris on the artificial turf and the like when grooves are provided in the area where the artificial turf is laid.

[0014] A dust tray set according to one aspect of the embodiment is a dust tray set in which at least two groove dust tray devices are arranged from the upstream side to the downstream side of the groove, and the dust tray devices are the dust tray devices described in any one of claims 1 to 18, and the mesh opening of the mesh part of the upstream dust tray device is larger than the mesh opening of the mesh part of the downstream dust tray device, which makes it difficult for the downstream dust tray device to become clogged with large debris etc. (makes it less susceptible to water pressure).

[0015] <Embodiment> 1. Overall structure The dust tray device 10 for a groove is disposed in a groove 1 when in use, as shown in FIG. Here, the direction in which the water channel in the groove 1 extends (the direction in which water flows) is defined as the water channel direction, and the direction perpendicular to the water channel direction and the vertical direction is defined as the width direction. The dust tray device 10 is disposed in the groove 1 to prevent dust flowing in the groove 1 from flowing downstream. Each part will be explained below.

[0016] 2. Groove As shown in Figure 1, the groove 1 has a groove portion 2 on the inner surface of which the cross-sectional shape perpendicular to the waterway direction is a "U" shape, a "C" shape that opens upward, or a shape similar to these, and extends in the waterway direction. The groove 1 here has groove cover placement portions 3 on which the groove covers 5 are placed, the openings of which are covered by one or more groove covers 5. The groove cover placement portions 3 are located above the groove portion 2 and on both ends in the width direction. Note that the groove cover placement portions 3 may be configured as part of the groove portion 2. The groove 2 has, as inner surfaces, a bottom surface 2a and side surfaces 2b at both ends in the width direction of the bottom surface 2a. The groove cover mounting portion 3 has a stepped shape that widens outward in the width direction. The groove cover 5 is disposed between the side surfaces 3b of the groove cover mounting portion 3 on both the left and right sides, and is supported from below by the bottom surfaces 3a. Here, the trench 1 is formed by burying a trench forming body 4 in the ground. The trench forming body 4 has, for example, a cross-sectional shape perpendicular to the waterway (extension) direction that is the above-mentioned "U" shape, "C" shape, or a shape similar to these. The upper end surface of the trench forming body 4 is located lower than the ground surface, and the trench cover mounting portion 3 is at least the upper end of the trench forming body 4, but may also be formed by the upper end of the trench forming body 4 and the ground. In other words, the bottom surface 3a of the trench cover mounting portion 3 is the upper end surface of the trench forming body 4, the bottom surface of the depression in the ground outside the upper end surface, and the upper surface on which soil, stones, etc. are arranged, and the side surface 3b is the side surface of the depression in the ground. When viewed from above, the gutter cover 5 has a square shape or a rectangular shape that is long in the waterway direction (hereinafter also referred to as the "extension direction"). The gutter cover 5 here has a plurality of through-holes 6 that penetrate in the vertical direction. In other words, the gutter cover 5 utilizes what is known as grating. When viewed from above, the through-holes 6 have, for example, a rectangular, square, circular, elliptical or oval shape. When viewed from above, the plurality of through-holes 6 are arranged in a matrix (lattice) shape.

[0017] 3. Dust tray device 1, the dust tray device 10 comprises a mesh portion 11 that intersects (for example, perpendicular to) the waterway direction in the groove 1, support pole portions 12 that are provided on the mesh portion 11 and extend upward, and a supported portion 13 that is provided on the mesh portion 11 or the support pole portions 12 and is supported by the groove 1 and / or the groove cover 5. This makes it difficult for the supported portion 13 to flow because it is supported by the groove 1 and / or the groove cover 5. The mesh portion 11 can also be expressed as extending from the bottom surface 2a of the groove portion 2 toward the ground surface. The dust tray device 10 includes a second net portion that is provided from the lower end portion of the net portion 11 along the waterway direction (bottom surface 2a of the groove portion 2). The second net portions here are on both sides of the net portion 11 in the waterway direction. This allows the dust tray device 10 to be stably placed within the groove 1. The second net portion on the upstream side of the waterway is referred to as the second upstream net portion 14A, and the second net portion on the downstream side is referred to as the second downstream net portion 14B. When there is no need to distinguish between the two second net portions, they will simply be referred to as the second net portions 14A, 14B or the second net portion 14. The dust tray device 10 has a frame 15, and the frame 15 is used to form the mesh part 11 and the like. Each part will be explained below with reference to FIGS. 2 and 3.

[0018] (1) Frame As shown in Figures 2 and 3, when viewed from the waterway direction, the frame 15 has a "U" shape, a "C" shape, or a similar shape with an opening at the top. In other words, the frame 15 is configured so that an opening (a gap 16 described below) is formed by the supported portion 13 and the mesh portion 11 described below. The frame 15 has a pair of vertically extending portions 15a extending in a direction inclined upward while widening in the width direction at an angle of 15 degrees or less with respect to the vertical direction, a horizontally extending portion 15b connecting the lower ends of the pair of vertically extending portions 15a and extending in the horizontal direction (width direction), and a horizontally extending portion 15c connecting the vertically intermediate portions of the pair of vertically extending portions 15a and extending in the horizontal direction. Here, in order to distinguish between the lateral extension portions 15b and 15c, for convenience, the lower lateral extension portion 15b is referred to as the lower lateral extension portion 15b, and the upper lateral extension portion 15c is referred to as the upper lateral extension portion 15c. Note that the lower lateral extension portion 15b and / or the upper lateral extension portion 15c may be configured as the mesh portion 11 instead of the frame 15. The connecting portion between the vertical extension portion 15a and the lower horizontal extension portion 15b is arc-shaped. The arc portion may be part of the vertical extension portion 15a, part of the lower horizontal extension portion 15b, or part of the arc portion may be part of the vertical extension portion 15a. The frame 15 is made of, for example, a metal, more specifically, a stainless steel rod. The rod is a pipe (cylinder). The frame 15 is made by, for example, fixing a pipe for forming the upper horizontal extension portion 15c to a pipe bent into a U-shape by welding, screws, or the like.

[0019] (2) Amibe As shown in FIG. 3, the mesh portion 11 is composed of a frame portion 111 and a mesh portion 113. The frame portion 111 is composed of a lower horizontal extension portion 15b, an upper horizontal extension portion 15c, and the lower portion of the upper horizontal extension portion 15c of the pair of vertical extension portions 15a. The frame portion 111 is rectangular when viewed from the waterway direction, with the corners on the lower side being arc-shaped. This allows it to be positioned along the inner surface of the groove portion 2, which has a "U"-shaped cross section, and reduces the gap with the inner surface of the groove portion 2, thereby reducing the amount of garbage that flows through the gap. The frame portion 111 surrounds the periphery of the net portion 113, and the net portion 113 is supported by the frame portion 111. This makes it possible to prevent deformation of the net portion 113 due to water pressure or the like.

[0020] The mesh portion 113 may have any structure that allows water to pass through but not garbage, and may be, for example, a wire mesh in which metal wires are arranged in a lattice pattern, or a woven structure using metal wires, such as a plain weave wire mesh or a twill weave wire mesh. The mesh portion 113 is attached to the frame portion 111 from the upstream side. This ensures that even if the mesh portion 111 is clogged with garbage and water accumulates, the water pressure acts in a direction that presses the mesh portion 113 against the frame portion 111, preventing the mesh portion 113 from peeling off from the frame portion 111. Note that the mesh portion 113 can be attached to the frame portion 111 by welding, screws, rivets, tying with metal wire, or the like. The mesh size of the mesh portion 113 is set to be within a range of 1.74 to 1.84 mm, preferably within a range of 1.64 to 1.74 mm, and more preferably within a range of 1.54 to 1.64 mm. This allows for more reliable capture of small debris on the artificial turf, for example, when used in the grooves of a soccer field or baseball field using artificial turf. The mesh size is the distance between metal wires that extend in the first direction and are adjacent in the second direction, and / or the distance between metal wires that extend in the second direction and are adjacent in the first direction. Here, the metal wires in the first direction of the mesh portion 113 are configured to be parallel to the width direction of the groove 1, and the metal wires in the second direction are configured to be parallel to the up-down direction. Note that when a numerical range is expressed as A to B, the numerical values ​​of A and B are included.

[0021] (3) Strut part The support pillars 12 are provided so as to extend upward from the mesh part 11. Specifically, the support pillars 12 extend upward from the frame part 111 of the mesh part 11. Here, the support pillars 12 utilize the frame 15 and are configured by the upper parts of the upper horizontal extension parts 15c of the pair of vertical extension parts 15a. A supported portion 13 is provided at the upper end of the support portion 12. The support portion 12 extends to an imaginary plane formed by the bottom surfaces 3a of the groove cover mounting portions 3 on both sides in the width direction of the groove 1. When the tip of the support portion 12 enters the supported portion 13, the upper end of the support portion 12 is positioned above the imaginary plane.

[0022] (4) Supported part As shown in Fig. 1, the supported portion 13 is supported by the groove 1 by being placed on the bottom surface 3a of the groove cover mounting portion 3 of the groove 1. The supported portion 13 has a portion located above the bottom surface 3a of the groove cover mounting portion 3 in the member attached to the pair of support portions 12. More specifically, the supported portion 13 has a plate-shaped portion (plate-shaped member) 131 whose main surface extends in the width direction and is perpendicular to the up-down direction, and has a supported portion 133 in an area of ​​the plate-shaped portion (plate-shaped member) 131 facing the bottom surface 3a. The supported portion 133 is on the underside of the plate-shaped portion 131, and is located at both end regions in the width direction. The supported portion 13 is placed on the groove cover placing portion 3 of the groove 1, and the groove cover 5 is placed (placed) on top of it, thereby supporting the dust tray device 10 in a fixed state in the groove 1. The supported portion 133 can also be said to be an abutment area that abuts against the bottom surface 3a of the groove cover placing portion 3 from above. The plate-like portion 131 of the supported portion 13 is a plate member made of metal, for example, stainless steel, and is fixed to the upper end of the support portion 12 by welding, screws, etc. This allows the supported portion 13 to be firmly fixed to the support portion 12. The dust tray device 10 has a gap 16 with no mesh portion between the supported portion 13 and the mesh portion 11. This allows the water to escape downstream (reducing water pressure) even when, for example, heavy rain, a typhoon, or the like increases the amount of water flowing through the groove 1, or when the mesh portion 11 is clogged with garbage and the amount of water stored in the groove 1 increases. Note that the gap 16 may be formed between the mesh portion 11 and the upper end of the groove 1 (the lower end of the groove cover 5).

[0023] (5)Second net section The second net portion 14 is provided along at least the upstream side in the waterway direction from the net portion 11. This allows the second net portion 14 to receive the dust captured by the net portion 11 when the dust tray device 10 is pulled up from the groove 1. The second upstream net portion 14A and the second downstream net portion 14B have a configuration that is approximately symmetrical with respect to the net portion 11 when viewed in the width direction (FIG. 2(b)). As shown in Figure 2(b), the length LA of the second upstream net section 14A in the waterway direction is the same as or approximately the same as the length LB of the second downstream net section 14B in the waterway direction. Also, as shown in Figure 3, the length in the width direction of the second upstream net section 14A is approximately the same as the length in the width direction of the second downstream net section 14B. In other words, the second upstream net section 14A and the second downstream net section 14B have the same configuration, but are attached to the net section 11 (frame 15) at different locations. The second net portions 14A and 14B have second frame portions 141A and 141B and second net portions 143A and 143B. The components of the second upstream net portion 14A are designated by the symbol "A," and the components of the second downstream net portion 14B are designated by the symbol "B."

[0024] The second frame portions 141A, 141B are rectangular when viewed from above, and have a shape that matches or roughly matches the outer edge shape of the net portion 11 when viewed from the waterway direction. As a result, when viewed from the waterway direction, the second frame portions 141A, 141B are "U" shaped, and the second frame portions 141A, 141B are arranged to fit along the inner surface of the groove portion 2, thereby reducing the gap with the inner surface of the groove portion 2. The second frame portions 141A, 141B are formed, for example, by curving both widthwise ends of a flat rectangular frame portion. The second frame portions 141A, 141B can be made of, for example, metal, such as stainless steel pipe material.

[0025] The second mesh portions 143A, 143B may have any structure that allows water to pass through but not dust, such as a lattice-like arrangement of metal wires or a woven structure using metal wires, such as plain weave or twill weave. The second mesh portions 143A, 143B are attached to the second frame portions 141A, 141B from above. That is, the surfaces of the second mesh portions 143A, 143B facing the groove portion 2 are supported by the second frame portions 141A, 141B that surround the peripheries of the second mesh portions 143A, 143B. In other words, the second mesh portions 143A, 143B are supported from the groove portion 2 side by the second frame portions 141A, 141B. As a result, when the dust tray device 10 is pulled up from the groove 1, the load of the water acts in a direction that presses the second mesh portions 143A, 143B against the second frame portions 141A, 141B, preventing the second mesh portions 143A, 143B from peeling off from the second frame portions 141A, 141B. Note that the second mesh portions 143A, 143B can be attached to the second frame portions 141A, 141B by welding, screws, rivets, tying with metal wire, or the like.

[0026] The mesh size of the second mesh portions 143A and 143B is set to be within a range of 1.74 to 1.84 mm, preferably within a range of 1.64 to 1.74 mm, and more preferably within a range of 1.54 to 1.64 mm. This allows for more reliable capture of small debris on the artificial turf, for example, when used in the grooves of a soccer field or baseball field using artificial turf. Here, the second mesh portions 143A and 143B are configured so that the metal wires in the first direction are parallel to the width direction or vertical direction of the groove 1, and the metal wires in the second direction are parallel to the water channel direction.

[0027] 3, the second mesh portions 14A, 14B have at least second bottom mesh portions 145A, 145B that face the bottom surface 2a of the groove portion 2. This makes it possible to capture dust that escapes from the mesh portion 11 toward the bottom surface 2a of the groove portion 2. Furthermore, when the dust tray device 10 is pulled up from the groove 1, the dust captured by the mesh portion 11 can be received by the second bottom mesh portions 145A, 145B. 3, the second net portions 14A, 14B have second side net portions 146A, 146B that face the side surface 2b of the groove portion 2. Here, there are two second side net portions 146A, 146B, each facing the side surface 2b on both sides in the width direction of the groove portion 2. This makes it possible to capture dust that escapes from the net portion 11 toward the side surface 2b of the groove portion 2. As described above, the second mesh portions 14A, 14B here have second bottom mesh portions 145A, 145B and second side mesh portions 146A, 146B, which can prevent dust that has escaped from the mesh portion 11 from flowing downstream of the dust tray device 10.

[0028] The upper ends of the second net portions 14A and 14B are configured to be lower than the upper end of the net portion 11. In other words, the upper end of the net portion 11 is positioned higher than the upper ends of the second net portions 14A and 14B. This allows the net portion 11 to capture any debris captured by the second net portions 14A and 14B even if the debris breaks away.

[0029] 4.Supported part The supported portion has a structure supported by the groove 1, the groove cover 5, or both the groove 1 and the groove cover 5, and may have the following form, for example. (1) Example 1 1, the supported portion 13 is supported by being placed on the bottom surface 3a of the groove cover mounting portion 3 for the groove cover 5. The supported portion 13 has a plate shape with a main surface perpendicular to the up-down direction, and has a mounting portion that is placed on the bottom surface 3a of the groove cover mounting portion 3 as a supported portion 133. The groove cover 5 may or may not be placed (placed) on the upper surface of the supported portion 13. However, placing the groove cover 5 will suppress movement of the dust tray device 10. In this case, the supported portion 13 is supported by the groove portion 2 and the groove cover 5. Here, the supported portion 13 utilizes one plate-shaped portion 131, and the supported portions 133 on both sides of the width of the groove 1 are connected by a connecting portion 134 between the supported portions 133 on both sides. However, for example, the supported portions on both sides may be made up of two plate-shaped members and each plate-shaped member may be attached to the support portions 12 on both sides, or the supported portions on both sides may be made up of two plate-shaped members and each plate-shaped member may be attached to the support portions 12 on both sides and the two plate-shaped members may be connected in the width direction by another member.

[0030] (2) Example 2 The supported portion 21 is arranged between the groove covers 5 arranged (adjacent) in the waterway direction, and is supported by one groove cover 5 and the other groove cover 5. 4(a), the supported portion 21 has a plate-shaped portion (plate-shaped member) 211 whose main surface is perpendicular to the waterway direction, and the end face of the plate-shaped portion (plate-shaped member) 211 in the waterway direction serves as the supported portion 212. Note that the supported portion 212 here is the entire area of ​​both end faces of the plate-shaped portion 211. The end faces of the plate-shaped portion 211 are also the main faces of the plate-shaped portion. In the above example, in the supported portion 21, the underside 213 at both ends of the width direction of the plate-shaped portion 211 (which is the width direction of the groove 1) is a supported portion that is placed on and supported by the groove cover mounting portion 3, but in this case, the width direction length of the plate-shaped portion only needs to be between adjacent groove covers 5 and does not need to extend to the groove cover mounting portion 3. The supported portion 21 may be supported by abutting against the end surface 5a of the groove cover 5 located downstream in the waterway direction. Here, the supported portion 21 utilizes one plate-shaped portion 211, but for example, the supported portions on both sides may be made up of two plate-shaped members and each plate-shaped member may be attached to the support portions 12 on both sides, or the supported portions on both sides may be made up of two plate-shaped members and each plate-shaped member may be attached to the support portions 12 on both sides and the two plate-shaped members may be connected in the width direction by other members. Although the supported portion 21 has been described as having a plate-like portion 211 that straddles a pair of support portions 12, it may also be provided so as to extend upward from the frame portion 111 (upper horizontal extension portion 15c) of the mesh portion 11. In this case, the central portion in the width direction may face the end face 5a of the gutter cover 5 or the gutter covers 5 lined up in the waterway direction, or two plate-like portions spaced apart in the width direction may abut against the end face 5a or the gutter covers 5 lined up in the waterway direction.

[0031] (3) Example 3 The supported portion 31 is supported by being disposed between adjacent gutter covers 5 in the waterway direction, as in Example 2. As shown in Figure 4(b), the supported portion 31 has a rod-shaped portion (rod-shaped member) 311 extending in the width direction perpendicular to the waterway direction, and has a supported region 312 in the region of the rod-shaped portion (rod-shaped member) 311 facing the end face 5a of the gutter cover 5 (see Figure 1). The supported region 312 here constitutes a protruding portion that protrudes from the groove portion 2 side to the groove cover placing portion 3 side. In the supported portion 31, the undersides 313 of both ends of the rod-shaped portion 311 in the width direction (the width direction of the groove 1) are supported areas that are placed on and supported by the groove cover mounting portion 3, but the widthwise length of the rod-shaped portion only needs to be between adjacent groove covers 5 and does not need to extend to the groove cover mounting portion 3. The supported portion 31 may be supported by abutting against the end surface 5a of the groove cover 5 located downstream in the waterway direction. Here, the supported portion 31 utilizes one rod-shaped portion 311, but for example, the supported portions on both sides may be made up of two rod-shaped members and each rod-shaped member may be attached to the support portions 12 on both sides, or the supported portions on both sides may be made up of two rod-shaped members and each rod-shaped member may be attached to the support portions 12 on both sides and the two rod-shaped members may be connected in the width direction by another member. The supported portion 31 has a rod-shaped portion 311 that is provided so as to straddle a pair of support portions 12, but may also be provided so as to extend upward from the frame portion 111 (upper horizontal extension portion 15c) of the mesh portion 11. In this case, the central portion in the width direction may face the end face 5a of the gutter cover 5 located downstream in the waterway direction or the gutter covers 5 lined up in the waterway direction, or multiple rod-shaped portions spaced apart in the width direction may abut against the end face 5a of the gutter cover 5 located downstream in the waterway direction or the gutter covers 5 lined up in the waterway direction.

[0032] (4) Example 4 The supported portion 41 is supported by extending the support portion 42 upward beyond the support portion 12 of the embodiment, and the extending portion engages with the groove cover 5. Specifically, the extending portion engages with the through-hole portion 6 of the groove cover 5 or a recessed portion provided on the underside. The supported portion 41 has an engaging portion as a supported portion 411 that extends upward from the support portion 42 and engages with the through-hole portion 6 or the recessed portion of the groove cover 5. Note that the upper portion of the support portion 42 may constitute the supported portion 41. Here, there are two supported portions 41 spaced apart in the width direction, but there may be three or more supported portions spaced apart in the width direction. When three or more supported portions are provided, an extension portion is provided to extend upward from the upper horizontal extension portion 15c of the mesh portion 11, and the supported portion is formed on the upper side of that extension portion. Note that there may also be one extension portion provided so that the supported portion 41 extends upward from the upper horizontal extension portion 15c of the mesh portion 11. Furthermore, the supported portion 41 in Example 4 utilizes a support portion 42, but an extension portion may be provided so as to extend from the upper horizontal extension portion 15c of the mesh portion 11, and the number of such extension portions may be one or more. When a plurality of supported portions 41 are provided, they may be connected in the width direction.

[0033] (5) Example 5 The supported portion 51 is obtained by connecting the upper sides of the pair of support portions 42 in Example 4 with a connecting member, and providing a supported portion on the connecting member and / or the support portion. The dust tray device 50 of Example 5 has a pair of support columns 53 and a connecting portion 52 at the upper side of the support columns 53, which connects the support columns 53 together. The supported portion 51 has, as supported portions 511, an engaging portion that extends upward from the support portion 53 and engages with the through-hole portion 6 or the recessed portion of the groove cover 5, and an engaging portion that extends upward from the connecting portion 52 and engages with the through-hole portion 6 or the recessed portion of the groove cover 5. Note that the upper portion of the support portion 53 may constitute the supported portion 41. Here, the supported portions 511 on both sides in the width direction are provided on extensions of the support portions 53, but for example, the upper ends of support portions lower than the support portions 53 shown in Figure 5(b) may be connected by connecting portions (52), and the supported portions may include engaging portions that extend upward from the connecting portions (52) and engage with the through-hole portions (6) or recessed portions of the groove cover 5. In this case, there may be one or more supported portions.

[0034] (6) Example 6 The supported portion 61 is supported by abutting against the side surface 2b of the groove portion 2 or the side surface 3b of the groove cover mounting portion 3. As shown in (a) of Figure 6, the supported portion 61 has an abutting portion that abuts against the side surface 2b of the groove portion 2 or the side surface 3b of the groove cover mounting portion 3. The supported portion 61 has a fixed portion 62 fixed to the support portion or the mesh portion, and a movable portion 63 provided so as to be movable in the width direction relative to the fixed portion 62, and the movable portion 63 abuts against the side surface 2b of the groove portion 2 and the side surface 3b of the groove cover mounting portion 3. The abutting portion is constituted by the portion of the movable portion 63 facing the side surfaces 2b, 3b. The fixed part 62 is configured as a rod-shaped body, for example, a columnar or cylindrical body, extending in the width direction, and has a threaded portion 621 on the outer periphery of the outer end in the width direction. When the rod-shaped body is configured as a cylindrical body, the threaded portion may be provided on the outer periphery or the inner periphery. The movable part 63 is configured as a cylindrical body that extends in the width direction and has a circular inner circumferential surface in cross section, and has a threaded portion 631 on the inner circumferential surface. As a result, by rotating the movable part 63 around the central axis of the fixed part 62, the movable part 63 moves in the width direction and abuts against the side surfaces 2b and 3b.

[0035] Although not shown in Fig. 6(a), the supported part 61 having the movable part 63 may be on at least one side in the width direction, and the supported part on the other side may have an abutting part that abuts against the side surface 2b of the groove part 2 or the side surface 3b of the groove cover mounting part 3. Specifically, this can be implemented by configuring the end of the fixed part 62 in Fig. 6(a) opposite the movable part 63 to reach the side surfaces 2b, 3b. When supported parts 61 having movable parts 63 are provided on both sides in the width direction, for example, one fixed part 62 may be used with movable parts 63 provided on both ends thereof, or two fixed parts 62 may be provided on the support part or the mesh part (longitudinal extension part), with a movable part 63 provided on each fixed part 62. When two fixed parts 62 are used above the mesh part, the two fixed parts 62 may be connected by a connecting part.

[0036] (7) Example 7 In Example 6, the movable part 63 can be moved in the width direction by rotating the movable part 63, but the supported part 71 in Example 7 is equipped with a biasing means that biases the movable part outward in the width direction, and has the ability to expand and contract in the width direction. The supported portion 71 comprises an opposing portion 73 that faces the side surface 2b of the groove portion 2 or the side surface 3b of the groove cover mounting portion 3, a support tube portion 72 that supports the opposing portion 73 so that it can move in the width direction, a biasing means 74 that biases the opposing portion 73 toward the side surfaces 2b, 3b, and a support portion 75 that supports the biasing means 74. The facing portion 73 is formed of a rod-shaped member and is inserted into a cylindrical member that constitutes the support tube portion 72. The support portion 75 is cylindrical with a bottom and has a through hole 751, and is attached to the end of the support tube portion 72 with the facing portion 73 passing through the through hole 751. The biasing means 74 is disposed between the bottom of the support portion 75 and a flange portion 731 at the rear end of the facing portion 73, and biases the facing portion 73 outward in the width direction. This makes it possible to manually push the facing portion 73 toward the support tube portion 72, allowing it to abut against the side surface 2b of the groove portion 2 and the side surface 3b of the groove cover mounting portion 3, which have various widths.

[0037] Although not shown in Fig. 6(b), the supported portion 71 having the expandable function may be on at least one side in the width direction, and the supported portion on the other side may have an abutting portion that abuts against the side surface 2b of the groove portion 2 or the side surface 3b of the groove cover mounting portion 3. Specifically, this can be implemented by configuring the end face of the support tube portion 72 in Fig. 6(b) to reach the side surfaces 2b and 3b. When the supported parts 71 with an expandable function are provided on both sides in the width direction, for example, one support tube part 72 may be used and the expandable function may be provided on both ends, or two support tube parts 72 may be provided on the support pole or the net part (longitudinal extension part) and the expandable function may be provided on each support tube part 72. When two support tube parts 72 are used above the net part, the two support tube parts 72 may be connected by a connecting part.

[0038] (8) Example 8 The supported portion may be composed of a spring body arranged between the support portion or mesh portion and the side surface 2b of the groove portion 2 or the side surface 3b of the groove cover mounting portion 3, and the dust tray device may be arranged in the groove with the spring body in a contracted state so that the spring body presses against the side surfaces 2b, 3b.

[0039] 5.Second net section The second net portion may have the following configuration, for example. (1) Example 1 The second mesh portions 14A, 14B are provided on both sides of the mesh portion 11 in the waterway direction, and although the second upstream mesh portion 14A and the second downstream mesh portion 14B have the same configuration, they may have different configurations. For example, the length LB (see FIG. 2(b)) of the second downstream mesh portion in the waterway direction may be longer than the length LA of the second upstream mesh portion in the waterway direction. This improves the installation stability of the dust tray device 10 when the dust tray device 10 is installed on the bottom surface 2a of the groove 1.

[0040] (2) Example 2 The second mesh portions 14A, 14B are provided on both sides of the mesh portion 11 in the waterway direction, and have second frame portions 141A, 141B and second mesh portions 143A, 143B. However, from the viewpoint of capturing debris in the upstream water, it is preferable that the second upstream mesh portion 14A has the second mesh portion 143A, but the second downstream net portion 14B does not have to have the second mesh portion 143B. Furthermore, from the viewpoint of the stability of the dust tray device in the installed state, the second downstream net portion 14B does not necessarily have to have the second net portion 143B. In other words, the second downstream net portion 14B may have only the second frame portion 141B.

[0041] (3) Example 3 The second upstream net portion 14A has a second side net portion 146A, but does not have to have one. However, if the second side net portion 146A is provided at both ends in the width direction of the net portion 11, it can capture debris that flows sideways from the net portion 11. The second upstream mesh portion 14A has the second bottom mesh portion 145A at the lower end of the mesh portion 11, but it may be located at the middle in the vertical direction. By having the second bottom mesh portion, it is possible to catch dust that falls off the mesh portion 11 when the dust tray device 10 is pulled up. The second upstream net portion 14A preferably has a second bottom net portion 145A at the lower end of the net portion 11. When the second side net portion 146A is provided at the lower end of the net portion 11, it can capture debris flowing downward (toward the bottom) from the net portion 11.

[0042] 6. Dust tray set In the embodiment, one dust tray device 10 has been described, but for example, two or more dust tray devices may be used adjacent to each other. That is, a dust tray set may be provided in which at least two dust tray devices for the groove are arranged from the upstream side to the downstream side of the groove. In this case, dust tray devices having the various supported portions and second mesh portions described above can be used. When using a dust tray set, it is preferable that the mesh opening of the mesh part of the upstream dust tray device be larger than that of the downstream dust tray device, as this makes the downstream dust tray device less likely to become clogged with large debris (less susceptible to water pressure).

[0043] <Modification> Although the embodiment has been described above, the present invention is not limited to this embodiment, and the following modifications may be made, for example. Furthermore, the embodiment and the modifications may be combined, or the modifications may be combined with each other. Furthermore, examples not described in the embodiments and modifications, and design changes within the scope of the present invention are also included in the present invention.

[0044] (1) Although the location of the groove 1 in the embodiment is not explained, examples of grooves include drainage channels along roads, irrigation channels for agriculture and industry, drainage channels installed around golf courses, sports grounds, soccer fields, etc. (2) In the embodiment, the groove former 4 has a portion corresponding to the groove portion 2 and does not have the groove cover mounting portion 3, but the groove former may have the groove portion and the groove cover mounting portion as an integral part. Also, the lower side of the groove may be formed by the groove former, and the upper side may be formed by the ground (including concrete). (3) Although a metal grating has been used as the groove cover 5, it may be made of wood, concrete, or steel plate, for example. (4) Amibe The mesh section need only be able to capture the flowing debris and may be made of a material other than metal wire mesh, such as a synthetic resin fiber net, a punched metal or punched plate made of a metal or resin plate with many through holes, or a grid net made of metal wires arranged at intervals in parallel. [Explanation of symbols]

[0045] 1 groove 10 Dust tray device 11 Amibe 12 Support section 13 Supported part 14 Second net section

Claims

1. In a dust tray device disposed in a groove or a groove covered with a groove cover, A mesh portion that intersects with the water channel in the groove; a support portion provided on the net portion and extending upward; a supported portion supported by at least one of the groove cover and the groove; a second net portion having a second bottom net portion facing the bottom surface of the groove and a second side net portion facing the side surface of the groove; Equipped with the supported portion is provided on the support portion, The second net portion is provided on both sides of the net portion in the waterway direction and approximately symmetrically with respect to the net portion, an upper end of the mesh portion is located higher than an upper end of the second mesh portion; A gap portion having no mesh portion is provided between the upper end of the groove and the mesh portion. Dust tray device.

2. The supported portion is supported by engaging with the groove cover. The dust tray device according to claim 1 .

3. The groove cover has a recessed portion formed on a lower surface or a through-hole portion penetrating in the vertical direction, The supported portion engages with the recessed portion or the through-hole portion. The dust tray device according to claim 2 .

4. There are a plurality of the groove covers, The supported portion is supported by being disposed between two adjacent groove covers. The dust tray device according to claim 1 .

5. In the supported portion, The portion disposed between the two adjacent groove covers is plate-shaped. The dust tray device according to claim 4 .

6. The groove has a groove portion and a groove cover placement portion on which the groove cover is placed, The supported portion has a portion that protrudes from the groove portion side in a direction perpendicular to the water channel and the up-down direction relative to the groove portion toward the groove cover mounting portion side located outside the groove portion, 6. The dust tray device according to claim 4 or 5.

7. The supported portion is supported by being placed on a groove cover placing portion on which the groove cover is placed so as to cover the groove. The dust tray device according to claim 1 .

8. The supported portion is supported by contacting the inner surface of the groove. The dust tray device according to claim 1 .

9. The supported portion is a facing portion facing the inner surface of the groove; a biasing means for biasing the facing portion toward the inner surface or an expansion / contraction mechanism for expanding and contracting the facing portion relative to the inner surface; Equipped with The dust tray device according to claim 1 .

10. The supported portion is provided in a pair in a direction perpendicular to the water channel and the up-down direction, The pair of supported portions are connected by a connecting portion. The dust tray device according to any one of claims 1 to 9.

11. The second net portion of the second net part is supported from the inner surface side of the groove by a second frame portion that surrounds a peripheral edge portion of the second net portion. The dust tray device according to any one of claims 1 to 10.

12. The support portion and the mesh portion are made of a metal material. The dust tray device according to any one of claims 1 to 11.

13. The mesh opening of the mesh portion is within the range of 1.54 to 1.84 mm. The dust tray device according to any one of claims 1 to 12.

14. A dust tray set in which at least two groove dust tray devices are arranged from the upstream side to the downstream side of the groove, The dust tray device is the dust tray device according to any one of claims 1 to 13, The mesh size of the mesh portion of the upstream dust tray device is larger than the mesh size of the mesh portion of the downstream dust tray device. Dust tray set.

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