JP2013053452A - Side ditch cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a side ditch cover which can suppress the generation of a rattle and a noise when used by being installed on a side ditch and which does not increase installation labor and the costs of manufacture and transportation.SOLUTION: A side ditch cover includes a plate-like body 2 which assumes a rectangular shape in a plan view, and first-third supporting protrusions 4 which are provided on the plate-like body 2 and which support the plate-like body 2 at three points by abutting on the side ditch or the adjacently-disposed plate-like bodies 2. The first supporting protrusion 4 is provided on an undersurface on the side of the first edge 3a of the plate-like body 2 and abuts on the side ditch. The second and third supporting protrusions 5 and 6 are provided on the second edge 3b side of both the edges of the plate-like body 2.

Description

  The present invention relates to a gutter lid that is installed and used in a gutter provided on a site such as a road or a parking lot.

  Most of the side gutter lids installed and used in side gutters provided on sites such as roads and parking lots are rectangular in plan view, and four protrusions are provided on the lower surface thereof. These side groove lids are actually surfaces with respect to the side grooves, but in principle, are supported at four points.

  Since such a side groove cover is a four-point bearing, rattling is likely to occur due to manufacturing accuracy of the side groove or the side groove cover itself, slight damage through use, or the like. Noise is also generated due to rattling.

  Therefore, in order to suppress such rattling, a gutter lid with a three-point support is proposed in Patent Document 1. The side groove cover has a substantially triangular shape or a trapezoidal shape in plan view, and is actually a surface with respect to the side groove, but is supported at three points in principle. Since this side groove cover is a three-point bearing, the occurrence of rattling can be suppressed more than the side groove cover of a normal four-point bearing.

JP 2002-327487 A

  However, it is essential that the side groove cover of Patent Document 1 has a substantially triangular or trapezoidal shape in plan view so as to correspond to the three-point support. For this reason, there are the following problems. Since the shape is complicated, manufacturing cost and transportation cost increase. Because it is a triangle or trapezoid, it is necessary to prepare side groove lids only for the end and corner when arranging them side by side in a rectangular side groove, and it is necessary to systematically align many types of side groove lids. is there. In particular, in the case of a triangular shape, the size is smaller than that of a normal rectangular side groove cover, and the number of installations increases. Therefore, installation effort and installation cost increase. Further, since it becomes lighter as it becomes smaller, it becomes easy to jump up, and rattling and noise are likely to occur. Since it cannot be used in combination with a normal rectangular side groove cover, it cannot be applied to a side groove in which a partial side groove cover is installed.

  It is an object of the present invention to provide a side groove cover that can suppress the occurrence of rattling and noise when used in a side groove and does not increase installation labor, manufacturing, and transportation costs. To do.

  One embodiment of the present invention is a side groove lid that is installed side by side in a side groove and both edges are supported by the side groove, and is provided on the plate-like body and a rectangular plate-like body in plan view, First to third support protrusions that support the plate-like body at three points, and the plate-like body includes first and second side surfaces facing side groove lids disposed adjacent to both sides. And a third side surface and a fourth side surface disposed to face the side groove, and the first support protrusion is on the first edge side of the plate-like body that is the third side surface side. And is provided on the lower surface of the plate-like body so as to abut against the side groove, and one of the second and third support protrusions is a second side of the plate-like body which is the fourth side surface side. Provided on the edge side, provided on the lower surface of the plate-like body and in contact with the side groove, and the remaining one of the second and third support protrusions is formed on the side And wherein the any of the gutter cover which is arranged adjacent to a contact with gutter cover.

  The side groove cover according to the embodiment of the present invention can suppress the occurrence of rattling and noise when used by being installed in the side groove, and does not increase installation labor, manufacturing, and transportation costs.

(A) is the perspective view seen from the upper surface side of the side groove cover which concerns on 1st Embodiment of this invention, (b) is the perspective view seen from the lower surface side of the same side groove cover. (A) is a top view of the side groove cover of FIG. 1, (b) is a bottom view of the side groove cover of FIG. 1, (c) is a side view of the side groove cover of FIG. It is a side view of the side groove cover of FIG. 1 on the long side direction side of the side groove. FIG. 2 is a plan view of a state in which the side groove cover of FIG. 1 is disposed in the side groove. It is sectional drawing cut along the IV-IV line of FIG. (A) is the perspective view seen from the upper surface side of the side groove cover which concerns on 2nd Embodiment of this invention, (b) is the perspective view seen from the lower surface side of the same side groove cover. (A) is a top view of the side groove cover of FIG. 5, (b) is a bottom view of the side groove cover of FIG. 5, (c) is a side view of the side groove cover of FIG. It is a side view of the side groove cover of FIG. 5 on the long side direction side of the side groove. FIG. 6 is a plan view of a state in which the side groove cover of FIG. 5 is disposed in the side groove. It is sectional drawing cut along the VIII-VIII line of FIG. (A) is the perspective view seen from the upper surface side of the side groove cover which concerns on 3rd Embodiment of this invention, (b) is the perspective view seen from the lower surface side of the same side groove cover. (A) is a top view of the side groove cover of FIG. 9, (b) is a bottom view of the side groove cover of FIG. 9, (c) is a side view of the side groove cover of FIG. 9 on both sides of the side groove, and (d) is a side view. FIG. 10 is a side view of the side groove cover of FIG. 9 on the long side direction side of the side groove. FIG. 10 is a plan view of a state in which the side groove cover of FIG. 9 is disposed in the side groove. It is sectional drawing cut along the XII-XII line | wire of FIG. It is sectional drawing cut along the XIII-XIII line | wire of FIG. It is sectional drawing cut along the XIV-XIV line | wire of FIG. (A) is the perspective view seen from the upper surface side of the side groove cover which concerns on 4th Embodiment of this invention, (b) is the perspective view seen from the lower surface side of the same side groove cover. (A) is a top view of the side groove cover of FIG. 15, (b) is a bottom view of the side groove cover of FIG. 15, (c) is a side view of the side groove cover of FIG. 15 on both sides of the side groove, and (d) is a side view. FIG. 16 is a side view of the side groove cover of FIG. 15 on the long side direction side of the side groove. FIG. 16 is a plan view of a state in which the side groove cover of FIG. 15 is disposed in the side groove. It is sectional drawing cut along the XVIII-XVIII line of FIG. (A) is the perspective view seen from the upper surface side of the side groove cover which concerns on 5th Embodiment of this invention, (b) is the perspective view seen from the lower surface side of the same side groove cover. (A) is a top view of the side groove cover of FIG. 19, (b) is a bottom view of the side groove cover of FIG. 19, (c) is a side view of the side groove cover of FIG. 19 on both sides of the side groove, and (d) is a side view. FIG. 20 is a side view of the side groove cover of FIG. 19 on the long side direction side of the side groove. FIG. 20 is a plan view of a state in which the side groove cover of FIG. 19 is disposed in the side groove. It is sectional drawing cut along the XXII-XXII line | wire of FIG. It is a perspective view which shows the modification of the 1st support protrusion of the side groove cover which concerns on 1st Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[First Embodiment]
A side groove cover 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 4. 1A is a perspective view seen from the upper surface 2a side of the side groove lid 1, and FIG. 1B is a perspective view seen from the lower surface 2b side of the side groove lid 1. FIG. 2A is a top view of the side groove cover 1, FIG. 2B is a bottom view of the side groove cover 1, FIG. 2C is a side view of the side groove cover 1 on both sides of the side groove 100, and FIG. d) is a side view of the side groove cover 1 on the long side (drainage) direction side of the side groove 100. FIG. 3 is a plan view of a state in which the side groove lid 1 is disposed in the side groove 100. 4 is a cross-sectional view taken along line IV-IV in FIG.

  The side groove 100 in which the side groove cover 1 is disposed is an elongated flow path provided on a site such as a road or a parking lot. The side groove 100 has a pair of side groove walls 101 in the short side (both sides) direction, and a receiving edge surface 103 is formed inside the pair of side groove walls 101.

  The side groove lid 1 is a lid that is used by being installed in the side groove 100 side by side. As shown in FIGS. 2A and 2B, the side groove lid 1 has a rectangular plate-like body 2 in plan view and first to third plates for supporting the plate-like body 2 with respect to the side groove 100. Support protrusions 4, 5, and 6 are provided. The rectangular shape of the plate-like body 2 is the same as that of a conventional side groove lid that is widely used at present.

  The plate-like body 2 is arranged toward the upper side 2a, the lower surface 2b arranged toward the receiving edge surface 103 of the side groove 100, and the long side (drainage) direction side of the side groove 100, and is continuous with the upper surface 2a and the lower surface 2b. The first side surface 2c and the second side surface 2d, and the third side surface 2e and the fourth side surface 2f which are arranged toward the short side direction side of the side groove 100 and are continuous with the upper surface 2a and the lower surface 2b. When a plurality of side groove lids 1 are arranged in the side groove 100, the first side surface 2c is arranged in contact with or close to the second side surface 2d of the adjacent side groove lid 1, and the second side surface 2d is adjacent to the side groove. The first side surface 2c of the lid 1 is disposed in contact with or close to the first side surface 2c. When a plurality of side groove lids 1 are arranged in the side groove 100, the third side surface 2 e and the fourth side surface 2 f are arranged in contact with or close to the inner surface of the side groove wall 101 of the side groove 100. The first side surface 2c is provided with a notch 20 for installation or drainage extending from the upper surface 2a to the lower surface 2b. In addition, the notch part 20 does not need to be provided and may be provided on both sides. The upper surface 2a of the plate-like body 2 includes, for example, two parallel first sides having the same length in a plan view and two parallel lengths having the same length forming a rectangle together with the two first sides. And the lower surface 2b of the plate-like body 2 has two parallel third sides having the same length and the same length forming a rectangle together with the two third sides. Two parallel fourth sides. At this time, the upper surface 2a and the lower surface 2b may have different areas.

  The first to third support protrusions 4, 5, and 6 are formed integrally with the plate-like body 2 on the lower surface 2 b of the plate-like body 2, and each has a bowl shape. The first to third support protrusions 4, 5, 6 have a protrusion height H <b> 1 from the lower surface 2 b of the plate-like body 2. The first support protrusion 4 is disposed on the first edge 3 a on the third side surface 2 e side of both edges 3 of the lower surface 2 b of the plate-like body 2, and the bowl-shaped top is the receiving edge of the side groove 100. It arrange | positions so that it may be located in the receiving edge surface 103 side rather than the surface edge part 102. FIG. Further, the first support protrusion 4 is disposed at an intermediate position between the first side surface 2c and the second side surface 2d of the plate-like body 2 in plan view. The second and third support protrusions 5 and 6 are disposed on the second edge 3a on the fourth side face 2f side of the two edges 3 of the lower surface 2b of the plate-like body 2, and the bowl-shaped top is formed. The side groove 100 is disposed so as to be positioned closer to the receiving edge surface 103 than the receiving edge surface end 102. The second support protrusion 5 is disposed in contact with or close to the first side surface 2c in plan view. The third support protrusion 6 is disposed in contact with or close to the second side surface 2d in plan view.

  With the configuration as described above, the first to third support protrusions 4, 5, 6 (the tops thereof) form triangular three fulcrums. As shown in FIG. 4, these first to third support protrusions 4, 5, and 6 have three surfaces (three top portions) on the side where the area is narrowed, and in principle, the receiving edge surface of the side groove 100 at three points. The plate-like body 2 is supported in contact with 103.

  Although the 1st thru | or 3rd support protrusion 4,5,6 which concerns on this embodiment is made into the hook shape, this invention is not limited to this, It is made to respond | correspond to the shape of the receiving edge surface of the side groove | channel of installation object, etc. For the purpose, an appropriate shape can be obtained. However, when compared with the rectangular parallelepiped shape, the bowl-shaped shape has a smaller area in contact with the receiving edge surface 103 of the side groove 100, and is advantageous for approaching the three-point fulcrum. Further, when the first to third support protrusions 4, 5, and 6 are made of concrete, the hook shape is less likely to chip than the rectangular parallelepiped, which is advantageous in terms of durability. In addition, the first to third support protrusions 4, 5, and 6 according to the present embodiment have the same protrusion height from the lower surface 2b of the plate-like body 2 as H1, but the present invention has the same height. It is not limited to this. For example, the second and third support protrusions 5 and 6 may be set to the same protrusion height, and may be set to different heights by the protrusion height of the first support protrusion 4.

  Although it is assumed that the plate-like body 2 and the first to third support protrusions 4, 5, 6 according to the present embodiment are integrally formed of concrete, the present invention is not limited to this. For example, it may be made of metal, ceramic, wood, resin, a combination thereof, or a composite material thereof. Further, the plate-like body 2 according to the present embodiment is a massive plate having no through-holes, but may be a lattice-like grating having a plurality of through-holes. In that case, the materials of the first to third support protrusions 4, 5, and 6 are also selected as appropriate. For example, in the case of grating, the metal first to third support protrusions 4, 5, and 6 are used.

  Next, arrangement | positioning to the side groove 100 of the side groove cover 1 which has the above structures is demonstrated. As shown in FIG. 3, a plurality of side groove lids 1 are installed side by side in the side groove 100. In FIG. 3, the side of the side groove cover 1 on which the first support protrusions 4 are provided is disposed on the sidewalk side, and the side of the side groove cover 1 on which the second and third support protrusions 5 and 6 are provided is on the roadway side. It is arranged. That is, the side provided with one fulcrum is arranged on the sidewalk side, and the side provided with two fulcrums is arranged on the roadway side. As shown in FIG. 4, the tops of the first to third support protrusions 4, 5, 6 of the side groove lid 1 abut on the receiving edge surface 103 of the side groove 100. At this time, the upper surface 2 a of the plate-like body 2 of the side groove lid 1 has substantially the same height as the upper surface of the side groove wall 101 of the side groove 100.

  A load P from a pedestrian, an automobile, or the like is applied to the side groove lid 1 in the direction from the upper side to the lower side in FIG. The load P applied to the side groove lid 2 may be transmitted between adjacent plate-like bodies 2 or between the plate-like body 2 and the side groove 100, but mainly the first to third of the side groove lid 1. It is transmitted from the support protrusions 4, 5, 6 to the receiving edge surface 103 of the side groove 100. In addition, the arrow of the load P in the drawing is shown to indicate the direction of the force, and is not shown to specify the position where the force in the horizontal direction in the drawing is applied.

  According to the side groove cover 1 according to the present embodiment, the first to third support protrusions 4, 5, and 6, that is, the three-point support is supported by the side groove 100. In this case, it is possible to suppress the occurrence of rattling and noise from the side groove cover due to the four-point support, and since it has a simple rectangular shape in plan view, it is troublesome to install the side groove 100 and manufacture the side groove cover 1. And no significant increase in transportation costs. Since the side groove cover 1 has a rectangular shape in plan view, it can be used at the end or corner of the rectangular side groove 100, and only one type of side groove cover 1 needs to be prepared. Moreover, since it is the same shape as a normal rectangular side groove cover, compared with a normal rectangular side groove cover, the number of installation is the same, and installation effort and installation cost are also equivalent. Moreover, since it can be used in combination with a normal rectangular side groove cover, it can also be applied to a side groove in which a partial side groove cover is installed. Since the shape is simpler than that of a triangular or trapezoidal side groove cover, the manufacturing and transportation costs are equivalent to those of a normal rectangular side groove cover. In FIG. 3, the side on which the two fulcrums (second and third support protrusions 5 and 6) of the side groove cover 1 are provided on the side of the roadway where the load P is generally considered to be relatively larger than the sidewalk side is arranged. In addition, since the side provided with one fulcrum (first support protrusion 4) of the side groove cover 1 is disposed on the sidewalk side, which is generally considered to have a relatively smaller load P than the roadway side, it is efficient. It is possible to prevent rattling and noise. However, the side groove cover 1 is not necessarily arranged as shown in FIG.

  FIG. 23 shows a modification of the side groove cover 1 according to the first embodiment. In the side groove lid 1E according to this modification, the first support protrusion 4E is not a hemispherical shape but an elongated shape, and only this point is different from the side groove lid 1.

[Second Embodiment]
A side groove lid 1A according to a second embodiment of the present invention will be described with reference to FIGS. A description of the same configuration as that of the lateral groove lid 1 according to the first embodiment will be omitted, and only a different configuration will be described. Moreover, about the structure similar to the side groove cover 1 which concerns on 1st Embodiment, the same code | symbol is attached | subjected. FIG. 5A is a perspective view seen from the upper surface 2a side of the side groove lid 1A, and FIG. 5B is a perspective view seen from the lower surface 2b side of the side groove lid 1A. 6A is a top view of the side groove lid 1A, FIG. 6B is a bottom view of the side groove lid 1A, FIG. 6C is a side view of the side groove lid 1A on both sides of the side groove 100, and FIG. d) is a side view of the side groove lid 1A on the long side (drainage) direction side of the side groove 100. FIG. FIG. 7 is a plan view showing a state in which the side groove lid 1 </ b> A is disposed in the side groove 100. 8 is a cross-sectional view taken along line VIII-VIII in FIG.

  The side groove cover 1 according to the first embodiment includes an upper surface 2a at both ends of the first edge 3a of the plate-like body 2, that is, a third side surface 2e on the side where the first support protrusion 4 is provided. When the load P is applied to the upper surface 2a near the tangent to each of the first and second side surfaces 2c and 2d, it is considered that the most rattling occurs. In the side groove lid 1A according to the second embodiment of the present invention, even when a load P is applied to a place where such rattling is likely to occur, the rattling is minimized and noise is not generated. In order to suppress it to the minimum, two first and second sub-supporting protrusions 15 and 16 are provided on both sides of the first supporting protrusion 4 on the lower surface 2b of the plate-like body 2A. The side groove lid 1A is different from the side groove lid 1 only in this point.

  The first and second sub-supporting protrusions 15 and 16 have a bowl-like shape like the first supporting protrusion 4. The first and second sub-supporting protrusions 15 and 16 are provided on the first edge 3a side in the same manner as the first supporting protrusion 4, and the second and third supporting protrusions 5 and 6 Similarly, it is provided on the first side surface 2c and the second side surface 2d side. At this time, you may arrange | position so that the line | wire which connects the top part of the 1st support protrusion 4 and each top part of the 1st and 2nd sub support protrusions 15 and 16 may become linear form by planar view. Also, a straight line connecting the top of the second support protrusion 5 and the top of the first sub-support protrusion 15 and a straight line connecting the top of the third support protrusion 6 and the top of the second sub-support protrusion 16 in plan view. You may arrange | position so that it may become parallel. The material of the side groove lid 1A, the structure of the plate-like body 2A, and the like can be changed as appropriate as described in the first embodiment.

  As shown in FIGS. 6D and 8, the first and second auxiliary support protrusions 15 and 16 (the tops thereof) have a protrusion height H <b> 2 that is lower than the protrusion height H <b> 1 of the first support protrusion 4. Have. As shown in FIG. 8, when the load P is not applied to the side groove lid 1 </ b> A or is not inclined even if it is applied, the side groove lid 1 </ b> A is formed at three points of the first to third support protrusions 4, 5, 6. Is supported by the side groove 100, and the first and second sub-supporting protrusions 15 and 16 are in a floating state without coming into contact with the side groove 100. As can be seen from FIG. 8, when the load P is applied to the upper surface 2a above the first sub-supporting protrusion 15 and the side groove cover 1A is tilted, the side groove cover 1A uses the first support protrusion 4 as a fulcrum. As a result, the first sub-supporting protrusion 15 comes into contact with the receiving edge surface 103 of the side groove 100 and the inclination of the side groove lid 1A stops. Similarly, when the load P is applied to the upper surface 2a above the second auxiliary support protrusion 16 and the side groove cover 1A is inclined, the side groove cover 1A is inclined with the first support protrusion 4 as one of the fulcrums, The sub-supporting protrusion 16 contacts the receiving edge surface 103 of the side groove 100, and the inclination of the side groove lid 1A stops.

  The arrangement of the side groove lid 1A having the above-described configuration in the side groove 100 is the same as that of the side groove lid 1 according to the first embodiment. That is, in FIG. 7, the side of the side groove lid 1A on which the first support protrusion 4, the first and second auxiliary support protrusions 15 and 16 are provided is disposed on the sidewalk side, and the second and third sides of the side groove cover 1A are arranged. The side on which the support protrusions 5 and 6 are provided is arranged on the roadway side.

  According to the side groove cover 1A according to the second embodiment of the present invention, the same effect as the side groove cover 1 according to the first embodiment can be obtained. Furthermore, according to the side groove lid 1A according to the second embodiment, the first and second sub-support protrusions 15 and 16 having the protrusion height H2 lower than the protrusion height H1 of the first support protrusion 4 are provided on the lower surface 2b. Since it is provided on both sides of the first support protrusion 4, even if the load P is applied to the upper surface 2a and the side groove lid 1A is inclined, the inclination amount can be minimized, so that no noise is generated or noise is generated. Can be reduced.

[Third Embodiment]
A side groove lid 1B according to a third embodiment of the present invention will be described with reference to FIGS. A description of the same configuration as that of the lateral groove lid 1 according to the first embodiment will be omitted, and only a different configuration will be described. Moreover, about the structure similar to the side groove cover 1 which concerns on 1st Embodiment, the same code | symbol is attached | subjected. FIG. 9A is a perspective view seen from the upper surface 1a side of the side groove lid 1B, and FIG. 9B is a perspective view seen from the lower surface 2b side of the side groove lid 1B. 10A is a top view of the side groove lid 1B, FIG. 10B is a bottom view of the side groove lid 1B, FIG. 10C is a side view of the side groove lid 1B on both sides of the side groove 100, and FIG. d) is a side view of the side groove cover 1B on the long side (drainage) direction side of the side groove 100. FIG. FIG. 11 is a plan view showing a state in which the side groove lid 1 </ b> B is disposed in the side groove 100. 12 is a cross-sectional view taken along line XII-XII in FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG.

  The side groove cover 1 according to the first embodiment includes an upper surface 2a at both ends of the first edge 3a of the plate-like body 2, that is, a third side surface 2e on the side where the first support protrusion 4 is provided. When the load P is applied to the upper surface 2a near the tangent to each of the first and second side surfaces 2c and 2d, it is considered that the most rattling occurs. In the side groove lid 1B according to the third embodiment of the present invention, even when a load P is applied to a place where such rattling is likely to occur, the rattling is minimized and noise is not generated. In order to minimize the first and second side projections 8 that engage with each other when a plurality of side groove lids 1 are arranged on the first side surface 2c and the second side surface 2d of the plate-like body 2B, 9 and first and second side surface grooves 11 and 12 are provided. Further, the side groove lid 1B is a cornering portion 13 in which a tangential portion between the third and fourth side surfaces 2e, 2f and the lower surface 2b is chamfered. The side groove lid 1B is different from the side groove lid 1 in these points.

  The 1st side surface protrusion 8 is provided in the 1st edge part 3a side of the 1st side surface 2c of the plate-shaped body 2B so that it may protrude from the 1st side surface 2c. The second side projection 9 is provided on the second edge 2a side of the second side 2d of the plate-like body 2B so as to protrude from the second side 2d. The first and second side projections 8 and 9 are flat surfaces with the upper surface 2a side being flush with the upper surface 2a. The first and second side projections 8 and 9 have an arcuate cross-sectional shape in which the lower surface 2b side faces the lower surface 2b side from the viewpoint of the first and second side surfaces 2c and 2d.

  The first side surface groove 11 is provided so as to be recessed from the first side surface 2c on the second edge 3b side of the first side surface 2c of the plate-like body 2B. The second side surface groove 12 is provided to be recessed from the second side surface 2d on the second edge 3b side of the second side surface 2d of the plate-like body 2B. The first side surface groove 11 is opened in the direction toward the upper surface 2a and the first side surface 2c, and the lower surface 2b side is closed to form a first groove bottom surface 11a facing in the same direction as the upper surface 2c. . Similarly, the second side surface groove 12 is opened in a direction toward the upper surface 2a and the second side surface 2d, and the lower surface 2b side is closed to become a second groove bottom surface 12a facing in the same direction as the upper surface 2c. Yes.

  The first side surface groove 11 is engaged with the first side surface protrusion 8 of the side groove lid 1 </ b> B disposed adjacent to the first side surface groove 11. The second side surface groove 12 is engaged with the second side surface protrusion 9 of the side groove lid 1B disposed adjacently. Therefore, the first side surface groove 11 is formed so as to define a space having a size capable of accommodating the first side surface protrusion 8. Similarly, the second side surface groove 12 is formed by the second side surface protrusion 9. It is formed so as to define a space of a size that can accommodate the battery. The first side surface protrusion 8 and the first side surface groove 11 are located between both edge portions 3 (between the first edge portion 3a and the second edge portion 3b) in a plan view (viewpoint from the upper surface 2a). They are arranged at symmetrical positions across a center line L1 passing through the center. Similarly, the 2nd side surface protrusion 9 and the 2nd side surface groove | channel 12 are arrange | positioned in the symmetrical position on both sides of the centerline L1 by planar view. Further, the arcuate top portion of the first side protrusion 8 and the first groove bottom surface 11a of the first side surface groove 11 are located at substantially the same height from the viewpoint of the first side surface 2c, and similarly, The arcuate top of the second side projection 9 and the second groove bottom surface 12a of the second side groove 12 are located at substantially the same height from the viewpoint of the second side surface 2d. With such a configuration, when a plurality of side groove lids 1B are arranged side by side, the first side surface protrusion 8 is adjacent to the first side surface groove 11 of the adjacent side groove lid 1B and the arcuate top is the first groove bottom surface 11a. Similarly, the second side projection 9 is in contact with or adjacent to the second side surface groove 12 of the adjacent side groove lid 1B and the arcuate top portion thereof contacts the second groove bottom surface 12a. It is accommodated in a contact state or a close state.

  In the present embodiment, the first and second groove bottom surfaces 11a and 12a at least overlap with the tops of the second and third support protrusions 5 and 6 (portions contacting the receiving edge surface 103 of the side groove 100) in plan view, respectively. It is arranged at the position to do. When the first and second side projections 8 and 9 are accommodated in the corresponding first and second side grooves 11 and 12, respectively, the tops of the second and third support projections 5 and 6 in plan view, respectively. It has a protruding height that at least overlaps with (the portion of the side groove 100 that contacts the receiving edge surface 103). The first and second groove bottom surfaces 11a and 12a and the second and third support protrusions 5 and 6 do not have to overlap in plan view. In addition, the first and second side protrusions 8 and 9 and the second and third support protrusions 5 and 6 do not have to overlap each other in plan view. The first and second side projections 8 and 9 may be provided continuously with the third side 2e without a step, and the first and second side grooves 11 and 12 are also formed on the upper surface 2a and the first side. The side surface 2c and the fourth side surface 2f may be provided open. Further, the material of the side groove lid 1B, the structure of the plate-like body 2B, and the like can be appropriately changed as described in the first embodiment.

  As shown in FIG. 11, the side groove lid 1B having the above-described configuration is arranged on the side groove 100 alternately on the one-point fulcrum (support protrusion 4) side and the two-point fulcrum (support protrusions 5 and 6) side. Line up. That is, when the first to third side groove lids 1B are arranged, the first side surface 2c of the second side groove lid 1B and the first side surface 2c of the first side groove lid 1B face each other, and the second The second side surface 2d of the side groove lid 1B and the second side surface 2d of the third side groove lid 1B are arranged so as to face each other.

  As a method of arrangement, for example, the second side groove cover 1B is slid from the side to the first side groove cover 1B that has already been arranged, and both are engaged. Further, when the second side groove lid 1B is disposed between the first and third side groove lids 1B that have already been disposed, the second side groove lid 1B is inclined and the first side groove lid 1B is tilted. The first side projection 8 or the second side projection 9 is inserted into the first side projection 8 or the second side projection 9 by inserting the first side groove 11 or the second side groove 12 of the second side groove lid 1B. 9, the second side groove cover 1B is rotated so as to lie down, and the second side surface protrusion 9 or the first side surface protrusion 8 of the second side groove cover 1B is moved to the second side surface of the first side groove cover 1B. It is inserted into the groove 12 or the first side surface groove 11. Since the corner portion 13 is provided, it is easy to rotate and is not easily damaged. At the time of arrangement, if there is a notch 20, this may be used, or a dedicated installation tool or removal tool may be used. When removing, reverse the above. As described in the first embodiment, the presence / absence and the number of the notches 20 and the side to be provided can be appropriately selected. However, depending on the situation, it may be more convenient to have the notch 20 at the time of placement and removal.

  When the side groove lid 1B is installed at the corner or end of the side groove 100, one side protrusion 8 or 9 may be cut and used. Of course, a side groove lid in which one side protrusion 8 or 9 is not formed may be manufactured and prepared in advance.

  As shown in FIG. 12, in the present embodiment, when the side groove lid 1B is disposed in the side groove 100, the second support protrusion 5 and the first side protrusion 8 in the side view (the viewpoint of the first side face 2c) Are arranged in a straight line. Further, the top of the second support protrusion 5 (contact with the receiving edge surface 103 of the side groove 100) and the top of the first side protrusion 8 (contact with the first groove bottom surface 11a) are aligned in a straight line. Be placed. The third support protrusion 6 and the second side protrusion 9 have the same relationship. As shown in FIG. 13, the first side projection 8 (the top) of the left first side groove lid 1B in the drawing and the second side projection 9 (the top) of the third side groove lid 1B on the right in the drawing. Are in contact with the first and second groove bottom surfaces 11a and 12a of the second side groove lid 1B in the middle in the drawing. As shown in FIG. 14, the first and second side projections 8 and 9 (the tops) of the second side groove lid 1B in the middle in the figure are the first grooves of the first side groove lid 1B on the right side in the figure. It is in contact with the bottom surface 11a and the second groove bottom surface 12a of the third side groove lid 1B on the left in the drawing. As described above, the second side groove lid 1B is supported at three points with respect to the side groove 100, and is supported at two points with respect to the adjacent first and second side groove lids 1B.

  As can be seen from FIG. 13, the load P is applied to the upper surface 2a of the first side groove cover 1B between the first support protrusion 4 of the first side groove cover 1B and the second support protrusion 5 of the second side groove cover 1B. Since the first side projection 8 of the first side groove lid 1B and the first groove bottom surface 11a of the second side groove lid 1B are substantially in close contact with each other, the first side groove lid 1B is not inclined. Or, even if it is tilted, it will be very small. Similarly, when a load P is applied to the upper surface 2a of the third side groove cover 1B between the first support protrusion 4 of the third side groove cover 1B and the third support protrusion 6 of the second side groove cover 1B. Since the second side projection 9 of the third side groove lid 1B and the second groove bottom surface 12a of the second side groove lid 1B are substantially in close contact with each other, the third side groove lid 1B is not inclined or inclined. But it will be very little.

  As can be seen from FIG. 14, the load P is applied to the upper surface 2a of the second side groove cover 1B between the second support protrusion 5 of the first side groove cover 1B and the first support protrusion 4 of the second side groove cover 1B. Is added, the first groove bottom surface 11a of the first side groove cover 1B and the first side protrusion 8 of the second side groove cover 1B are substantially in close contact with each other, so the second side groove cover 1B does not tilt. Or, even if it is tilted, it will be very small. Similarly, when a load P is applied to the upper surface 2a of the second side groove cover 1B between the third support protrusion 6 of the third side groove cover 1B and the first support protrusion 4 of the second side groove cover 1B. Since the second groove bottom surface 12a of the third side groove lid 1B and the second side projection 9 of the second side groove lid 1B are substantially in close contact with each other, the second side groove lid 1B is not inclined or inclined. But it will be very little.

  According to the side groove cover 1B according to the third embodiment of the present invention, the same effect as the side groove cover 1 according to the first embodiment can be obtained. Furthermore, according to the side groove cover 1B according to the third embodiment, it is supported at three points with respect to the side groove 100, and is supported at two points with respect to the adjacent side groove cover 1B so as to supplement this three-point support. Regardless of where the load P is applied to the upper surface 2a of the side groove lid 1B, the side groove lid 1B does not tilt or even slightly tilts. Therefore, the side groove lid 1B is very difficult to rattle and hardly generates noise. In particular, it is considered that the side groove lid 1 according to the first embodiment is most likely to be rattled when a load P is applied to the upper surface 2a of both end portions of the first edge 3a of the plate-like body 2. However, in the case of the side groove lid 1B according to the third embodiment, even if the load P is applied to a place where such rattling is likely to occur, it will not rattle.

  In the side groove lid 1B according to the third embodiment, as shown in FIGS. 12 to 14, the first and second side projections 8 and 9 are formed on the tops of the second and third support projections 5 and 6 in a plan view. When the load P is applied, the force is linear from the first and second side projections 8 and 9 to the second and third support projections 5 and 6 and the receiving edge surface 103 of the side groove 100. It is supposed to be hung on. However, the first and second side protrusions 8 and 9 do not have to overlap the tops of the second and third support protrusions 5 and 6 in plan view. Even in this case, if the two are arranged close to each other in a plan view, considerable backlash can be suppressed.

[Fourth Embodiment]
A side groove lid 1C according to a fourth embodiment of the present invention will be described with reference to FIGS. 15 to 18. A description of the same configuration as that of the lateral groove lid 1 according to the first embodiment will be omitted, and only a different configuration will be described. Moreover, about the structure similar to the side groove cover 1 which concerns on 1st Embodiment, the same code | symbol is attached | subjected. FIG. 15A is a perspective view seen from the upper surface 1a side of the side groove lid 1C, and FIG. 15B is a perspective view seen from the lower surface 2b side of the side groove lid 1C. 16A is a top view of the side groove lid 1C, FIG. 16B is a bottom view of the side groove lid 1C, FIG. 16C is a side view of the side groove lid 1C on both sides of the side groove 100, and FIG. d) is a side view of the side groove lid 1 </ b> C on the long side (drainage) direction side of the side groove 100. FIG. 17 is a plan view of a state in which the side groove lid 1 </ b> C is disposed in the side groove 100. 18 is a cross-sectional view taken along line XVII-XVII in FIG.

  In the lateral groove lid 1 according to the first embodiment, three first to third support protrusions 4 to 6 are provided on the lower surface 2 b of the plate-like body 2, and the three first to third support protrusions 4 to 6 are provided. All 6 are in contact with the receiving edge surface 103 of the side groove 100 to support the side groove lid 1. In the side groove lid 1C according to the fourth embodiment, one of the first to third support protrusions 4 to 6 is omitted, and is instead supported by the side groove lid 1C adjacent to the side surface of the plate-like body 2C. A part was provided. In other words, the side groove cover 1C according to the fourth embodiment has two support points in contact with the receiving edge surface 103 of the side groove 100 and one support point in contact with the adjacent side groove cover 1, and is supported at three points. It is like that. A specific configuration will be described below.

  The side groove lid 1C includes a side protrusion 30 provided on the second edge 3b side of the first side surface 2c of the plate-like body 2C so as to protrude from the first side surface 2c. The side protrusion 30 is a flat surface in which the lower surface 2b side is flush with the lower surface 2b. Further, the side protrusion 30 has a protrusion upper surface 30a which is located between the upper surface 2a and the lower surface 2b and is a plane parallel to the upper surface 2a facing the upper surface 2a side.

  The side groove lid 1C includes a side groove 31 provided to be recessed from the second side surface 2d on the second edge 3b side of the second side surface 2d of the plate-like body 2C. The side surface groove 31 is open in a direction facing the lower surface 2b, the second side surface 2d, and the fourth side surface 2f, and the upper surface 2a side is closed to form a groove bottom surface 31a that is a flat surface facing the same direction as the lower surface 2b. Yes.

  The second support protrusion 5 is provided on the lower surface of the side protrusion 30 on the lower surface 2 b side. The third support protrusion 6 is not provided. In the present embodiment, the second support protrusion 5 and the side protrusion 30 are arranged at positions that overlap each other in plan view. However, the present invention is not limited to this, and the support protrusion 5 and the side protrusion 30 do not have to overlap each other in plan view.

  The side surface protrusion 31 of the side groove lid 1 </ b> C disposed adjacent to the side surface groove 31 is engaged. Therefore, the side groove 31 is formed so as to define a space having a size that can accommodate the side protrusion 30. The side projections 30 and the side grooves 31 are arranged at positions where they are engaged with each other when the side groove lid 1C is arranged adjacently. The protrusion upper surface 30a of the side protrusion 30 and the groove bottom surface 31a of the side groove 31 are located at substantially the same height from the viewpoint of the fourth side surface 2f. With such a configuration, when a plurality of side groove lids 1C are arranged side by side, the side projection 30 is accommodated in the side groove 31 of the adjacent side groove lid 1C in a state where the projection upper surface 30a abuts the groove bottom surface 31a. It is like that. Thus, the side surface groove 31 (groove bottom surface 31a) plays a role as one of the fulcrums that support the side groove lid 1C, and forms a three-point support together with the first and second support protrusions 4 and 5. It can be said that the side surface groove 31 plays the role of the omitted third support protrusion 6.

  The arrangement of the side groove lid 1C having the above-described configuration in the side groove 100 is the same as that of the side groove lid 1 according to the first embodiment. That is, in FIG. 17, the side of the side groove lid 1C on which the first support protrusion 4 is provided is disposed on the sidewalk side, and the side of the side groove cover 1C on which the second support protrusion 5 is provided is disposed on the roadway side. Yes. As a way of arrangement, for example, the second side groove cover 1C is installed on the first side groove cover 1C that has already been arranged, or is slid from the side to engage with each other. When the side groove lid 1C is installed at the corner or end of the side groove 100, the side protrusions 30 may be cut and used. Of course, a side groove lid without the side projections 30 may be manufactured and prepared in advance.

  As shown in FIG. 18, the groove bottom surface 31a of the side groove 31 of the first side groove cover 1C in the middle in the drawing is in contact with the protrusion top surface 30a of the side protrusion 30 of the right second groove cover 1C in the drawing. . Thus, the first side groove lid 1C is supported at two points with respect to the side groove 100 by the first and second support protrusions 4 and 5 of the first side groove lid 1C, and the first side groove lid 1C. The side groove 31 is supported at one point on the adjacent second side groove lid 1C by the groove bottom surface 31a. Accordingly, the first side groove lid 1C is supported at three points with respect to the outside.

  According to the side groove lid 1 </ b> C according to the fourth embodiment of the present invention, the same effect as the side groove lid 1 according to the first embodiment can be obtained.

[Fifth Embodiment]
A side groove lid 1D according to a fifth embodiment of the present invention will be described with reference to FIGS. A description of the same configuration as that of the lateral groove lid 1 according to the first embodiment will be omitted, and only a different configuration will be described. Moreover, about the structure similar to the side groove cover 1 which concerns on 1st Embodiment, the same code | symbol is attached | subjected. FIG. 19A is a perspective view seen from the upper surface 1a side of the side groove lid 1D, and FIG. 19B is a perspective view seen from the lower surface 2b side of the side groove lid 1D. 20A is a top view of the side groove lid 1D, FIG. 20B is a bottom view of the side groove lid 1D, FIG. 20C is a side view of the side groove lid 1D on both sides of the side groove 100, and FIG. d) is a side view of the side groove lid 1D on the long side (drainage) direction side of the side groove 100. FIG. FIG. 21 is a plan view of a state in which the side groove lid 1 </ b> D is disposed in the side groove 100. 22 is a cross-sectional view taken along line XXII-XXII in FIG.

  In the lateral groove lid 1 according to the first embodiment, three first to third support protrusions 4 to 6 are provided on the lower surface 2 b of the plate-like body 2, and the three first to third support protrusions 4 to 6 are provided. All 6 are in contact with the receiving edge surface 103 of the side groove 100 to support the side groove lid 1. In the side groove lid 1D according to the fifth embodiment, one of the first to third support protrusions 4 to 6 is omitted, and is instead supported by the side groove lid 1D adjacent to the side surface of the plate-like body 2D. A part was provided. That is, the side groove lid 1D according to the fifth embodiment has two support points that contact the receiving edge surface 103 of the side groove 100 and one support point that contacts the adjacent side groove lid 1D, and is supported at three points. It is like that. A specific configuration will be described below.

  The side groove lid 1D includes a side protrusion 32 provided to protrude from the first side face 2c on the second edge 3b side of the first side face 2c of the plate-like body 2D. The side protrusion 32 has an arcuate cross-sectional shape in which the lower surface 2b side faces the lower surface 2b side from the viewpoint of the first side surface 2c, and also faces the lower surface 2b side to the lower surface 2b side from the viewpoint of the fourth side surface 2f. It includes a semicircular arc cross-sectional shape. The side protrusion 32 is a flat surface in which the upper surface 2a side is flush with the upper surface 2a, and the end portion on the side away from the first side surface 2c has an arc shape. The side protrusion 32 has a protrusion lower end 32a that is located between the upper surface 2a and the lower surface 2b and faces the lower surface 2b.

  The side groove lid 1D includes a side groove 33 provided to be recessed from the second side surface 2d on the second edge 3b side of the second side surface 2d of the plate-like body 2D. The side surface groove 33 is open in the direction facing the upper surface 2a and the second side surface 2d, and the lower surface 2b side is a groove bottom surface 33a that is a flat surface facing the same direction as the upper surface 2a.

  Similar to the third support protrusion 6, the first support protrusion 4 is provided on the lower surface 2 b at a position close to the second side surface 2 d side. The second support protrusion 5 is not provided.

  The side surface protrusion 32 of the side groove lid 1 </ b> D disposed adjacent to the side surface groove 33 is engaged. Therefore, the side groove 33 is formed so as to define a space having a size capable of accommodating the side protrusion 32. The side protrusion 32 and the side groove 33 are arranged at positions where they are engaged with each other when the side groove lid 1D is arranged adjacently. The protrusion lower end 32a of the side protrusion 32 and the groove bottom face 33a of the side groove 33 are located at substantially the same height from the viewpoint of the fourth side face 2f. With such a configuration, when a plurality of side groove lids 1D are arranged side by side, the side protrusions 32 are accommodated in the side groove 33 of the adjacent side groove cover 1D in a state where the lower end 32a of the protrusion is in contact with the groove bottom surface 33a. It is like that. Thus, the side protrusion 32 (protrusion lower end 32a) plays a role as one of the fulcrums that support the side groove lid 1D, and forms a three-point support together with the first and third support protrusions 4 and 6. It can be said that the side protrusion 32 plays the role of the omitted second support protrusion 5.

  The arrangement of the side groove lid 1D having the above-described configuration in the side groove 100 is the same as that of the side groove lid 1 according to the first embodiment. That is, in FIG. 21, the side of the side groove lid 1D on which the first support protrusion 4 is provided is disposed on the sidewalk side, and the side of the side groove cover 1D on which the third support protrusion 6 is provided is disposed on the roadway side. Yes. As a method of arrangement, for example, the second side groove cover 1D is placed on the first side groove cover 1D that has already been arranged, or is slid from the side to engage with each other. When the side groove lid 1D is installed at the corner or end of the side groove 100, the side protrusion 32 may be cut and used. Of course, a side groove lid without the side projections 32 may be manufactured and prepared in advance.

  As shown in FIG. 22, the lower end 32a of the side protrusion 32 of the second side groove lid 1D in the middle of the drawing is in contact with the bottom surface 33a of the side groove 33 of the first side groove lid 1D on the left side of the drawing. . Thus, the second side groove lid 1D is supported at two points with respect to the side groove 100 by the first and third support protrusions 4 and 6 of the second side groove lid 1D, and the second side groove lid 1D. Is supported at one point with respect to the adjacent first side groove lid 1D by the projection lower end 32a of the side projection 32. Accordingly, the second side groove lid 1D is supported at three points with respect to the outside.

  According to the side groove lid 1D according to the fifth embodiment of the present invention, the same effect as the side groove lid 1 according to the first embodiment can be obtained.

  The positions, shapes, and sizes of the first to third support protrusions 4 to 6, the side protrusions 30 and 32, and the side grooves 31 and 33 with respect to the side groove lids 1, 1 </ b> A, 1 </ b> B, 1 </ b> C, and 1 </ b> D are as follows. 1A, 1B, 1C, and 1D are only required to be supported at three points with respect to the outside, and are not limited to the above embodiment.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, A various deformation | transformation is possible.

1, 1A, 1B, 1C, 1D, 1E Side groove lid 2, 2A, 2B, 2C, 2D Plate-like body 2a Upper surface 2b Lower surface 2c First side surface 2d Second side surface 2e Third side surface 2f Fourth side surface 3 Both edges 3a First edge 3b Second edge 4, 4E First support protrusion 5 Second support protrusion 6 Third support protrusion 8 First side protrusion 9 Second side protrusion 11 First Side groove 11a First groove bottom surface 12 Second side surface groove 12a Second groove bottom surface 13 Corner portion 15 First sub-supporting protrusion 16 Second sub-supporting protrusion 20 Notch 30 Side protrusion 30a Projection upper surface 31 Side groove (corresponding to third support protrusion 6)
31a Groove bottom 32 Side projection (corresponding to second support projection 5)
32a Protrusion lower end 33 Side groove 33a Groove bottom surface 100 Side groove 101 Side groove wall 102 Receiving edge surface end 103 Receiving edge surface H1, H2 Projection height L1 Center line P Load

Claims (16)

A plurality of side grooves are installed side by side, and both edges are side groove lids supported by the side grooves,
A rectangular plate-like body in plan view;
First to third support protrusions provided on the plate-like body and supporting the plate-like body at three points;
The plate-like body has first and second side surfaces facing side groove lids disposed adjacent to both sides, and third and fourth side surfaces disposed facing the side grooves,
The first support protrusion is provided on the first edge side of the plate-like body that is the third side surface side, and is provided on the lower surface of the plate-like body so as to contact the side groove,
One of the second and third support protrusions is provided on the second edge side of the plate-like body which is the fourth side surface side, and is provided on the lower surface of the plate-like body so as to form the side groove. Abut,
The remaining one of the second and third support protrusions is a side groove cover that contacts either the side groove or a side groove cover disposed adjacent thereto. The side groove cover according to claim 1, wherein the first support protrusion is disposed at a center between the first and second side surfaces in a plan view. 3. The side groove cover according to claim 1, wherein the remaining one of the second and third support protrusions is provided on the second edge portion side and provided on a lower surface of the plate-like body. The said 2nd and 3rd support protrusion is respectively arrange | positioned in contact with the said 1st and 2nd side surface by planar view, or the vicinity of the said 1st and 2nd side surface. Side gutter lid as described. The first side surface projecting from the first side surface on the first side surface and a first surface projecting from the top surface of the plate-like body defining a space of a size capable of accommodating the first side surface projection. 1 side groove,
A second side projection protruding from the second side surface and a top surface of the plate-like body that defines a space of a size capable of accommodating the second side projection are opened on the second side surface. Two side grooves,
The first support protrusion, the first and second side protrusions are provided on the first edge side,
The second and third support protrusions, the first and second side grooves are provided on the second edge side,
The first side protrusion and the first side groove are arranged at positions symmetrical with respect to a center line passing through the center between the third and fourth side surfaces in plan view,
The second side protrusion and the second side groove are arranged at positions that are symmetrical with respect to the center line,
The side groove cover according to any one of claims 1 to 4, wherein the first and second side surface grooves have first and second groove bottom surfaces in the same direction as an upper surface of the plate-like body, respectively. The first and second groove bottom surfaces are respectively arranged at positions overlapping the second and third support protrusions in plan view,
When the first and second side protrusions are accommodated in the corresponding first and second side grooves of the side groove lids disposed adjacent to each other, the second and third support protrusions in a plan view, respectively. The gutter lid according to claim 5, wherein the lid has a protruding height that overlaps with the groove. The side groove cover according to claim 5 or 6, wherein end portions of both edge portions of the lower surface of the plate-like body are rounded. The side groove cover according to any one of claims 5 to 7, wherein the first and second side projections have an arcuate cross-sectional shape facing the lower surface side of the plate-like body in the first and second side views. . The plate-like body further comprising first and second sub-supporting protrusions that contact the side groove when the plate-like body is inclined with respect to the side groove and support the plate-like body;
The first and second sub-supporting protrusions are
Provided on the first edge side;
Arranged in contact with the first and second side surfaces or in the vicinity of the first and second side surfaces in plan view,
The side groove cover according to any one of claims 1 to 4, wherein a lowermost end portion is farther from the side groove than a lowermost end portion of the first support protrusion in the third side view. The side groove cover according to claim 9, wherein the first sub-support protrusion, the second sub-support protrusion, and the first support protrusion are arranged linearly in a plan view. Side protrusions protruding from the first side surface are provided on the first side surface,
The second side surface is provided with a side groove opened on the lower surface of the plate-like body that defines a space having a size capable of accommodating the side protrusion.
The side protrusion is located between the upper surface and the lower surface of the plate-like body in the fourth side view, and has a protrusion upper surface in the same direction as the upper surface of the plate-like body,
The side groove is located between the upper surface and the lower surface of the plate-like body in the fourth side view, and has a groove bottom surface in the same direction as the lower surface of the plate-like body,
The side protrusion, the side groove, and the second support protrusion are provided on the second edge side,
The side protrusion and the side groove are arranged at positions that are symmetrical with respect to a center line passing through the center between the first and second side surfaces in plan view,
The side groove cover according to claim 1 or 2, wherein a groove bottom surface of the side groove abuts on an upper surface of the protrusion of the side protrusion of a side groove cover disposed adjacently. The side groove cover according to claim 11, wherein the second support protrusion is provided on a lower surface of the side protrusion. Side protrusions protruding from the first side surface are provided on the first side surface,
The second side surface is provided with a side groove opened on the upper surface of the plate-like body that defines a space having a size capable of accommodating the side protrusion.
The side projection is located between the upper surface and the lower surface of the plate-like body in the fourth side view, and has a lower end of the projection facing the lower surface side of the plate-like body,
The side groove is located between the upper surface and the lower surface of the plate-like body in the fourth side view, and has a groove bottom surface in the same direction as the upper surface of the plate-like body,
The side protrusion, the side groove, and the third support protrusion are provided on the second edge side,
The side protrusion and the side groove are arranged at positions that are symmetrical with respect to a center line passing through the center between the first and second side surfaces in plan view,
The first support protrusion is disposed in contact with or near the second side surface in plan view,
The side groove cover according to claim 1, wherein the lower end of the side protrusion is in contact with a groove bottom surface of the side groove of the side groove cover disposed adjacently. The side groove cover according to claim 13, wherein the side protrusion includes an arcuate cross-sectional shape that faces the lower surface side of the plate-like body in the first side view. The side groove cover according to any one of claims 1 to 14, wherein the first support protrusion has an elongated shape in a plan view. The upper surface of the plate-like body includes two first parallel sides having the same length, and two second parallel sides having the same length that form a rectangle together with the two first sides. Have
The lower surface of the plate-like body includes two parallel third sides having the same length, and two parallel fourth sides having the same length that form a rectangle together with the two third sides. The gutter lid according to any one of claims 1 to 15.

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