JP5972178B2 - Curb block for pedestrian road boundary - Google Patents

Description

The present invention relates to a concrete pedestrian boundary curb block laid at the boundary between a road and a sidewalk.

Conventionally, the substantially L-shaped groove formed by the curb block for pedestrian boundary and the road surface that is normally constructed causes a puddle at an unspecified location. In order to solve this problem, in the curb block for the pedestrian road boundary, an opening is formed over the entire length of the block on the surface that faces the road, and the rainwater is inclined downward from the opening toward the inside of the block. What was formed in the cross-sectional substantially C shape by forming a water flow groove is known (refer to patent documents 1).

This conventional pedestrian boundary curb block is laid so that the bottom edge of the opening coincides with the surface of the roadway, thereby allowing rainwater to flow from the surface of the roadway into the rainwater flow channel inside the block, The drainage is made to drain through the rainwater channel.

JP-A-9-195214

The conventional curb boundary curb block has a water flow function inside the block by the opening and the rainwater drainage groove, but the bottom edge of the opening coincides with the surface of the roadway over its entire length. Is formed.

If formed in this way, rainwater from the road surface can be collected over a wide area over the entire length of the opening, but at the same time, earth and sand on the road surface and dust etc. easily flow into the rainwater flow channel from the opening. However, there was room for improvement in terms of maintenance and management, such as the rainwater passage groove being clogged with earth and sand and dust, which required a lot of work to remove.

Also, when a person walks or runs along a curb block for the boundary of the pedestrian boundary or a bicycle runs on the edge of the lane, shoes and wheels easily slip into the rainwater drainage channel from the opening, leading to an accident. There was also a problem of end up.

The present invention has a structure in which earth and sand, dirt, etc. on the surface of the roadway are difficult to flow in while ensuring inflow of rainwater from the opening to the rainwater passage groove, so that the rainwater passage groove is clogged with earth, sand, dust, etc. It is an object of the present invention to provide a curb block for a pedestrian boundary that eliminates problems and avoids an accident in which a person's shoes or a bicycle wheel slides into a rainwater channel from an opening.

In order to solve the above-described problem, a curb block for a pedestrian road boundary according to claim 1 of the present invention is:
A concrete pedestrian boundary curb block (1) laid at the boundary between the roadway (9) and the sidewalk (8),
An opening (10) is formed over the entire length of the block on the front surface (1a) that faces the roadway (9), and the rainwater flow groove is inclined downward from the opening (10) toward the inside of the block. (11) is formed to form a substantially C-shaped cross section,
Although the fine particle-sized earth and sand and dust can flow into the bottom edge (12) of the opening (10), the rainwater inflow slit opening formed at an interval at which the larger size of earth and sand and dirt is prevented from flowing ( A dam portion (13) provided with a plurality of 12a) is formed,
In addition, the bottom surface of the rainwater inflow slit port (12a) is formed by the bottom edge (12) of the opening (10), and this bottom edge (12) coincides with the surface of the roadway (9) during construction. The dam height of the dam portion (13) is higher than the surface of the roadway (9) .

Further, the curb block for the pedestrian road boundary according to claim 2 of the present invention is:
The curb block for a pedestrian road boundary according to claim 1, wherein the dam portion (13) is a concrete dam portion integrally molded with the block.

In the curb block for pedestrian boundary of the present invention (Claim 1) , fine particle-sized earth and sand can flow into the dam part formed at the bottom edge of the opening , but larger size earth and sand and dirt can flow in. There is a feature in a configuration in which a plurality of rainwater inflow slit openings formed at intervals to be blocked are provided .

In this way, by forming the dam part with the rainwater inflow slit opening, it is possible to suppress the inflow of earth and sand deposited on the roadway from the opening part by using the dam part as a wall. In addition, it is possible to solve the problem that the rainwater flow channel is clogged with earth or sand.
In addition, the rainwater inflow slit opening allows fine-sized soil and dirt to flow in, but larger sand and dirt are formed at intervals that prevent the inflow, so sediment and dirt accumulated on the roadway, etc. Preventing clogging of drainage channels with dirt, dirt, etc., from the size of the rainwater inflow channels that would block running water in the rainwater channels. Can do.

In addition, since the bottom edge of the opening where the rainwater inflow slit opening is formed coincides with the surface of the roadway, the rainwater inflow can be secured through the rainwater inflow slit opening, which is the original function of the pedestrian boundary. The water flow function using the inside of the curb block can be maintained.

In addition, since the dam portion was formed in the opening, this dam became a guard wall, and when a person walks or runs along the curb block for the pedestrian road boundary or runs a bicycle, it slips and wears shoes and wheels. Accidents such as sliding into the rainwater channel from the opening can be avoided.

Sectional drawing which shows the construction state of the curb block for pedestrian road boundaries concerning Example 1 of this invention. The perspective view which shows the curb block for pedestrian road boundaries of Example 1. FIG. Sectional drawing which shows the curb block for pedestrian road boundary of Example 2. FIG. Sectional drawing which shows the construction state of the curb block for pedestrian road boundaries of Example 3. FIG.

As shown in FIG. 1 and FIG. 2, the curb block for pedestrian boundary of Example 1 is formed of a concrete block having a basic trapezoidal cross-sectional shape and a road extending direction as a longitudinal direction. It faces the roadway 9 and is laid so that the back surface 1b faces the sidewalk 8.
In addition, in FIG. 1, 5 is a foundation chestnut, 6 is base concrete.

In this curb boundary curb block 1, an opening 10 is formed over the entire length of the front face 1 a that faces the road 9, and the upper side is inclined downward from the opening 10 toward the inside of the block. The rainwater water flow groove 11 surrounded by the inclined surface 11a, the back side surface 11b, and the lower inclined surface 11c is formed to have a substantially C-shaped cross section.
The rainwater passage groove 11 is formed into a V-shaped cross section whose groove width is gradually narrowed toward the groove bottom, and the groove bottom is formed at a position lower than the bottom edge 12 of the opening 10. The bottom edge 12 of the opening 10 is formed in a flat shape extending from the front surface 1a of the block to the lower inclined surface 11c of the rainwater passage groove 11.

A dam portion 13 having a plurality of (eight in the embodiment) rainwater inflow slit openings 12 a is formed at the bottom edge 12 of the opening 10 . The dam portion 13 having the rainwater inflow slit port 12a is a concrete dam portion integrally formed with the block, and the dam portion 13 can be easily and firmly formed by the concrete integral molding.

The rainwater inflow slit port 12a has a bottom surface formed by a bottom edge 12 of the opening 10, and the bottom edge 12 is formed so as to coincide with the surface of the roadway 9 during construction.
Thereby, in the laying state, the height of the dam portion 13 is formed to be higher than the surface of the roadway 9. In the embodiment, the dam portion 13 is set to be 2 cm higher than the roadway 9.

As described above, since the rainwater inflow slit port 12a is formed in the dam portion 13, the dam portion 13 functions as a wall while ensuring the rainwater inflow by the rainwater inflow slit port 12a. And the inflow of garbage etc. can be prevented. Further, even if earth and sand accumulate on the outside of the dam part 13 and a puddle is generated, rainwater permeates through the earth and sand gap and flows into the rainwater flow groove 11 from the rainwater inflow slit port 12a. The accumulation can be eliminated.

In this case, the rainwater inflow slit port 12a is formed at an interval at which inflow of fine particles of earth and sand, but dirt and dust of a larger size can be prevented, so the rainwater inflow slit port 12a. Larger sized earth and sand or dust can be prevented from flowing in by the dam portion 13, but fine sized earth and sand or the like flows into the storm water channel 11 through the storm water inflow slit port 12 a.

In this way, even when small-sized earth and sand such as fine particles flow into the rainwater channel 11, the rainwater channel 11 has a V-shaped cross section whose groove width is gradually narrowed toward the groove bottom. Since it is formed, the flow velocity is faster toward the bottom of the groove, and it is placed on this water flow to push down small-sized earth and sand such as fine particles so that it does not accumulate in the rainwater flow groove 11.

Moreover, since the dam part 13 was formed in the opening part 10, the dam part 13 functioned as a guard wall, and a person's shoes and the wheel of a bicycle slipped and slipped into the rainwater flow groove 11 from the opening part 10. Can be avoided.

As shown in FIG. 3, the curb block boundary curb block 1 according to the second embodiment is different from the first embodiment in the structure of the dam portion 13. Other configurations are the same as those of the first embodiment.

The dam portion 13 of the second embodiment has a plurality of plate members 13a such as metal plates attached to the block by anchors 13b along the lower inclined surface 11c of the rainwater passage groove 11 so that the bottom ridge 12 of the opening 10 has a plurality. A dam portion 13 having a single rainwater inflow slit port 12a is formed .

The second embodiment is an example in which the plate member 13a is attached along the lower inclined surface 11c of the rainwater passage groove 11, but for example, a plate member or the like may be attached along the front surface 1a of the block, A plate member, a protruding member, or the like may be attached to the bottom edge 12 of the opening 10.

As shown in FIG. 4, the curb block 1 for the pedestrian boundary in Example 3 is applied to the drainage pavement road 9 in which the water permeable surface layer 9a is formed on the water impermeable layer 9b. .

In the third embodiment, a notch 7 is formed in the front lower end portion of the block, and a partition member 7a surrounding the front and bottom surfaces of the notch 7 is attached to the ceiling surface of the notch 7 via a spacer 5. Yes.

At the time of construction, the upper surface of the water-impermeable layer 9 b is made to coincide with the lower end of the gap S formed by the spacer 5, and the water-permeable surface layer 9 a is laid thereon so that the surface coincides with the bottom edge 12 of the opening 10. Let

As a result, the rainwater that has penetrated into the water-permeable surface layer 9a is received by the water-impermeable layer 9b, and when this rainwater flows to the end side of the roadway 9 and reaches the curb block 1 for the pedestrian boundary, it is cut out from the gap S. It can be made to flow into the inside of the part 7 and drain into a water collecting basin or the like through the notch part 7 as a water channel.

Note that rainwater flowing on the surface of the water permeable surface layer 9a flows into the rainwater flow groove 11 through the rainwater inflow slit port 12a of the opening 10 in the same manner as in the first embodiment.

DESCRIPTION OF SYMBOLS 1 Curb boundary border 1a Front 10 Opening part 11 Rain water flow groove 12 Bottom edge 12a Rain water inflow slit port 13 Weir part 9 Road 8 Sidewalk

Claims (2)

A concrete pedestrian boundary curb block (1) laid at the boundary between the roadway (9) and the sidewalk (8),
An opening (10) is formed over the entire length of the block on the front surface (1a) that faces the roadway (9), and the rainwater flow groove is inclined downward from the opening (10) toward the inside of the block. (11) is formed to form a substantially C-shaped cross section,
Although the fine particle-sized earth and sand and dust can flow into the bottom edge (12) of the opening (10), the rainwater inflow slit opening formed at an interval at which the larger size of earth and sand and dirt is prevented from flowing ( A dam portion (13) provided with a plurality of 12a) is formed,
In addition, the bottom surface of the rainwater inflow slit port (12a) is formed by the bottom edge (12) of the opening (10), and this bottom edge (12) coincides with the surface of the roadway (9) during construction. A curb block for a pedestrian road boundary , wherein the dam height of the dam part (13) is higher than the surface of the roadway (9) . The curb block for a pedestrian boundary according to claim 1, wherein the dam part (13) is a concrete dam part integrally formed with the block.

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