JP3931971B2 - Rainwater lid - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rainwater lid that is installed on the side of a road to guide rainwater on a road surface to a rainwater tank and a gutter.
[0002]
[Prior art]
A general roadway has a gentle downward slope from its central portion toward the sidewalk so that rainwater and the like during rainy weather can be quickly discharged from the roadway. As shown in FIG. Further, the boundary block 82 provided with a step at the boundary with the sidewalk 81 is further inclined. In addition, side grooves are provided in the lower part of the boundary block 82 for draining rainwater on the road surface. In the side grooves, rainwater is deposited in the gutters and earth where sediments and pebbles that have flown from the road surface are accumulated. Rainwater tanks such as a seepage tank that permeates the water are installed at predetermined intervals.
[0003]
A rainwater lid 83 for allowing rainwater on the road surface to flow in is installed above these rainwater traps. The rainwater lid 83 has a rectangular peripheral frame as shown in FIG. A metal grid-like lid (grating) having a structure in which a plurality of through holes 84 are entirely arranged by dividing the inside of 83a vertically and horizontally by a plurality of grid members 83b is well known.
[0004]
FIG. 9 is a plan view explanatory view showing an inflow state of rainwater when the rainwater hull lid 83 is installed on a road inclined downward in the direction of the arrow 85. As shown in FIG. 9, the rainwater flowing near the sidewalk 81 flows in the direction of the arrow 86 from the high side to the low side along the boundary block 82 due to the downward slope of the roadway 80, and is separated from the sidewalk 81. The rainwater flowing in the place near the roadway 80 is affected by the combined slope of the downward slope in the direction of the arrow 85 of the roadway 80 and the downward slope toward the sidewalk 81 from the center of the roadway 80. It flows in the direction of the arrow line 87 that intersects diagonally and flows into the through hole 84 of the rainwater lid 83.
[0005]
[Problems to be solved by the invention]
However, the rainwater lid 83 shown in FIG. 8 and FIG. 9 is simply a structure in which the orthogonal lattice members 83b are arranged on the entire surface in the vertical and horizontal directions, taking into consideration the flow direction of rainwater, the ease of inflow of rainwater, and the like. However, when installed on an actual road, there is a problem that the rainwater that is about to flow into the rainwater pit collides with the lattice member 83b, so that it is difficult for rainwater to flow in and the rainwater collecting ability is low. .
[0006]
In the case of the rainwater lid 83, since the lattice members 83b are linearly arranged along the traveling direction of the vehicle or the like, the pedestrian slips and falls when the foot is placed on the rainwater lid 83. When the traveling bicycle passes over the rainwater lid 83, although rare, the tire may slip into the through hole 84 and lose the balance or fall down.
[0007]
This invention is made | formed in view of said point, and it aims at providing the rainwater cover with the outstanding rainwater inflow property and a slip prevention function.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, the rainwater cover of the present invention is a rainwater cover that is installed along the boundary between the roadway and the sidewalk, and is a peripheral frame that forms at least a part of the outer periphery of the rainwater cover. The area to be divided is divided into a first area located on the sidewalk side and a second area located on the roadway side at the time of installation, and a plurality of first grid members are spaced in parallel with the roadway direction in the first area. A plurality of first inlets are provided, and a plurality of second inlets are provided in the second region by arranging a plurality of second grid members at intervals in a direction obliquely intersecting the roadway direction. And a plurality of protrusions are provided on the upper surfaces of the first grid member and the second grid member. Here, the roadway direction means the traveling direction of a general vehicle traveling on the roadway, that is, the road longitudinal direction.
[0009]
By adopting such a configuration, rainwater flowing along the roadway direction in a place near the sidewalk flows into the plurality of first inlets between the first grid members arranged in parallel with the roadway direction. In addition, rainwater flowing in a direction obliquely intersecting the roadway direction in a place near the roadway away from the sidewalk is a plurality of second grid members arranged in a direction obliquely intersecting the roadway direction. Since it flows into the second inlet in an orderly manner, rainwater inflow is improved.
[0010]
In addition, a plurality of independent protrusions on the upper surface of the first grid member and the second grid member exhibit a non-slip function with respect to a shoe sole, a tire, etc. No slipping or overturning occurs, and an excellent anti-slip function is obtained. In addition, the rainwater passing over the first and second grid members is prevented from flowing by abutting on these protrusions, and the flow velocity is reduced. It becomes easy to fall to the inflow port, and effectively works to improve rainwater inflow.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
In the rainwater lid of the present invention, at least a part of the peripheral frame is provided with a rainwater guide surface having a downward slope from the outer peripheral side toward the inner peripheral side, thereby guiding rainwater into the peripheral frame. Therefore, rainwater can be flown into the first inlet or the second inlet more orderly.
[0012]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a plan view showing a state in which a rainwater lid according to an embodiment of the present invention is installed on a receiving frame, FIG. 2A is a cross-sectional view taken along line AA in FIG. 1, and FIG. 3 is a front perspective view showing the rainwater lid shown in FIG. 1 open to the receiving frame, and FIG. 4 is a rear perspective view showing the rainwater lid shown in FIG. 1 open to the receiving frame. FIG. 5 is a plan view showing a state in which the rainwater cover shown in FIG. 1 is installed on the road.
[0013]
As shown in FIGS. 1 to 4, the rainwater lid 1 according to the present embodiment is opened and closed via two hinge members 4 on a receiving frame 3 whose planar shape is fixed to the ground by anchor bolts (not shown). As shown in FIG. 5, it is installed at a predetermined interval in a side groove (not shown) embedded along the boundary between the roadway 7 and the sidewalk 6.
[0014]
As shown in FIG. 1, the area surrounded by the peripheral frame 2 that forms the three sides of the outer periphery of the rainwater lid 1 is divided into a first area 11 located on the sidewalk 6 side and a second located on the roadway 7 side when installed. A plurality of first inlets 10 are provided in the first region 11 by arranging a plurality of first grid members 9 at intervals in the first region 11 in parallel with the roadway direction 8. A plurality of second inlets 15 are provided by arranging a plurality of second grid members 13 and 14 at intervals in a direction obliquely intersecting the roadway direction 8. The second grid members 13 and 14 are inclinedly arranged in a mountain shape so as to be line symmetric with respect to the center line L of the rainwater lid 1 in the crossing direction of the roadway.
[0015]
On the upper surfaces of the first grid member 9 and the second grid members 13, 14, a plurality of frustoconical protrusions 16 are arranged at predetermined intervals along the respective longitudinal directions. These protrusions 16 are integrally formed of the same material as the first grid member 9 and the second grid members 13 and 14. Further, in order to reinforce the first grid member 9 and the second grid members 13, 14, a plurality of reinforcing members 17 parallel to the center line L are arranged at predetermined intervals. The intersecting portions of the two grid members 13 and 14 and the reinforcing member 17 are integrally joined to each other.
[0016]
Moreover, although the edge part of the 1st grid member 9, the 2nd grid members 13 and 14, and the reinforcement member 17 and the peripheral frame 2 are integrally joined, the said junction part was remove | excluded in the inner periphery of the peripheral frame 2 The portion is provided with a rainwater guide surface 2a having a downward slope from the outer peripheral side toward the inner peripheral side.
[0017]
As shown in FIG. 5, when the rainwater cover 1 is installed at the boundary between the downhill road 7 and the sidewalk 6 in the direction of the arrow 18, the rainwater R <b> 1 flowing along the roadway direction 8 on the place near the sidewalk 6 is It flows into the plurality of first inlets 10 between the plurality of first grid members 9 arranged in parallel with the roadway direction 8, and the place close to the roadway 7 away from the sidewalk 6 is oblique to the roadway direction 8. Since the rainwater R2 flowing in the intersecting direction flows in an orderly manner into the plurality of second inlets 15 between the plurality of second grid members 14 arranged in a direction obliquely intersecting the roadway direction 8, excellent rainwater inflow characteristics To demonstrate.
[0018]
Note that when the road 7 has a downward slope in the direction of the arrow 19, the rainwater R3 flowing along the roadway direction 8 along the sideway 6 flows in a regular manner into the first inlet 10 between the first grid members 9. In addition, rainwater R4 flowing in a direction obliquely intersecting the roadway direction 8 on the place near the roadway 7 away from the sidewalk 6 flows into the second inlet 15 between the second grid members 13 in an orderly manner. Excellent rainwater inflow characteristics can be obtained.
[0019]
As described above, the rainwater lid 1 includes not only the first grid 9 but also the second grids 13 and 14 arranged so that the inclination direction is line-symmetric about the center line L. Even if the down slope is any of the arrow lines 18 and 19, it is possible to obtain excellent rainwater inflow property, and it can be installed without being influenced by the gradient direction of the construction site.
[0020]
Further, in the rainwater lid 1, the plurality of protrusions 16 provided on the top surfaces of the first grid member 9 and the second grid members 13 and 14 act as slip stoppers for shoe soles, tires, etc. An excellent anti-slip function can be obtained without slipping or overturning when a pedestrian puts his / her foot on 1 or touches a bicycle tire.
[0021]
In addition, the rainwater passing over the first grid member 9 and the second grid members 13 and 14 is prevented from flowing by abutting against these protrusions 16, and the flow velocity is reduced. It becomes easy to fall into the 1st inflow port 10 and the 2nd inflow port 15 from the upper surface of the grid members 13 and 14, respectively, and it will contribute to the improvement of rainwater inflow property.
[0022]
Next, with reference to FIG. 6, FIG. 7, the rainwater jar cover 20 which is another Example of this invention is demonstrated. In the rainwater lid 20, portions having the same structure and function as the rainwater lid 1 described above are denoted by the same reference numerals as those in FIGS. 1 to 5 and description thereof is omitted.
[0023]
As shown in FIG. 6 and FIG. 7, in the rainwater lid 20 of the present embodiment, a plurality of first grid members 9 are spaced apart in parallel to the roadway direction in the first region 21 located on the sidewalk 6 side when installed. A plurality of first inlets 10 are provided by arranging them at a distance from each other, and a plurality of second grid members 23 are spaced in a direction obliquely intersecting the roadway passage direction in the second region 22 located on the roadway 7 side at the time of installation. A plurality of second inflow ports 25 are provided by arranging them in a row.
[0024]
As shown in FIG. 7, when a rainwater cover 20 is installed at the boundary between the downhill roadway 7 and the sidewalk 6 in the direction of the arrow 28, as in the case of the rainwater cover 1, the place near the sidewalk 6 is in the roadway direction. The rainwater R5 flowing along the road 8 flows in an orderly manner into the plurality of first inlets 10 between the plurality of first grid members 9 arranged in parallel with the roadway direction 8 and is closer to the roadway 7 away from the sidewalk 6. Rainwater R6 flowing in a direction obliquely intersecting the roadway direction 8 to the road is directed to a plurality of second inlets 25 between a plurality of second grid members 23 arranged in a direction obliquely intersecting the roadway direction 8. Although it flows in orderly, rainwater R6 flows in particularly efficiently because all the second grid members 23 arranged in the second region 22 are all inclined in the same direction.
[0025]
Accordingly, the rainwater lid 20 flows in a direction obliquely intersecting the roadway direction 8 at a location near the roadway 7 away from the sidewalk 6 as compared to rainwater R5 flowing along the roadway direction 8 at a place near the sidewalk 6. Excellent rainwater inflow property is exhibited even in a place where the amount of rainwater R6 is large. Other structures, functions, and the like are the same as those of the rainwater lid 1.
[0026]
The rainwater lids 1 and 20 of this embodiment are all installed in places where the road 7 is inclined downward in the directions of the arrows 18, 19, and 28. Therefore, it can be suitably installed at the boundary between a roadway and a sidewalk with no slope, and exhibits excellent rainwater inflow even in such a place.
[0027]
【The invention's effect】
The present invention has the following effects.
[0028]
(1) A region defined by a peripheral frame that forms at least a part of the outer periphery of the rainwater fence is partitioned into a first region located on the sidewalk side and a second region located on the roadway side during installation, In one area, a plurality of first grid members are arranged parallel to the roadway direction and spaced apart from each other, and a plurality of first inflow ports are provided. In the second area, a plurality of first grid members are obliquely intersected with the roadway direction. By arranging a plurality of second inlets by arranging second grid members at intervals, and by providing a plurality of protrusions on the top surfaces of the first grid member and the second grid member, a place near the sidewalk Rainwater that flows along the direction of traffic flows into the first inlets between the first grid members in an orderly manner, and rainwater that flows in a direction crossing the roadway direction obliquely at a location near the roadway away from the sidewalk is second. Multiple grid elements Since the flow orderly to second-rate inlet, thereby improving the rainwater inflow property.
[0029]
(2) Since the plurality of independent protrusions on the upper surfaces of the first grid member and the second grid member have a non-slip function with respect to shoe soles, tires, etc., a pedestrian who passes over the rainwater lid It has excellent anti-slip function for bicycles and bicycles, and the rainwater passing over the first and second grid members is brought into contact with these projections to reduce the flow velocity, so that the first and second grid members Since it becomes easy to fall from the upper surface to the first and second inlets, it effectively works to improve rainwater inflow.
[0030]
(3) Since at least a part of the peripheral frame is provided with a rainwater guide surface having a downward slope from the outer peripheral side toward the inner peripheral side, the function of guiding rainwater into the peripheral frame is enhanced, so that the rainwater is more orderly. It can flow into the first inlet or the second inlet.
[Brief description of the drawings]
FIG. 1 is a plan view showing a state in which a rainwater jar cover according to an embodiment of the present invention is installed on a receiving frame.
2A is a cross-sectional view taken along line AA in FIG. 1, and FIG. 2B is a cross-sectional view taken along line BB in FIG.
3 is a front perspective view showing a state in which the rainwater jar cover shown in FIG. 1 is opened with respect to a receiving frame. FIG.
4 is a rear perspective view showing the rainwater jar cover shown in FIG. 1 in an open state with respect to the receiving frame. FIG.
FIG. 5 is a plan view showing a state in which the rainwater cover shown in FIG. 1 is installed on a road.
FIG. 6 is a plan view showing a rainwater lid according to another embodiment of the present invention.
7 is a plan view showing a state in which the rainwater cover shown in FIG. 6 is installed on a road. FIG.
FIG. 8 is a perspective view showing a state in which a conventional rainwater cover is installed on a road.
FIG. 9 is a plan view showing a rainwater inflow state to the rainwater trap shown in FIG. 8;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1,20 Rainwater lid 2 Peripheral frame 2a Rainwater guide surface 3 Receiving frame 4 Hinge member 6 Sidewalk 7 Roadway 8 Roadway direction 9 First grid member 10 First inflow port 11,21 First region 12,22 Second region 13,14 , 23 Second grid member 15, 25 Second inlet 16 Protrusion 17 Reinforcement member 18, 19, 28 Arrow line

Claims (2)

A rainwater lid installed along the boundary between the roadway and the sidewalk,
Partitioning the area defined by the peripheral frame forming at least a part of the outer periphery of the rainwater lid into a first area located on the sidewalk side and a second area located on the roadway side during installation;
In the first region, a plurality of first grid members are arranged in parallel with the roadway direction, and a plurality of first inflow ports are provided.
In the second region, a plurality of second grid members are arranged at intervals in a direction obliquely intersecting the roadway direction, and a plurality of second inlets are provided.
A rainwater lid according to claim 1, wherein a plurality of protrusions are provided on the upper surfaces of the first grid member and the second grid member. The rainwater cover according to claim 1, wherein a rainwater guide surface having a downward slope from the outer peripheral side toward the inner peripheral side is provided on at least a part of the peripheral frame.

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