JP2014134018A - Walkway-roadway boundary curb block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a walkway-roadway boundary curb block which is constructed to hardly cause the inflow of sediment and dirt from the surface of a roadway while securing the inflow of rainwater into a rainwater channel, thus eliminating the clogging of the rainwater channel with the sediment and dirt and avoiding such a trouble that the shoes of people and the wheels of bicycles slip through an opening into the rainwater channel.SOLUTION: A rainwater chanel 11 sloping down from an opening 10 formed in a front face 1a toward the inside of the block is formed into an approximately C-shape in cross section. Several protruded parts 13 are upwardly formed on a bottom edge 12 of the opening via inflow slits 12a. During construction, the bottom edge 12 of the opening is formed corresponding to the surface of the roadway, and the protruded parts are formed to be protruded from the surface of the roadway.

Description

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

Conventionally, in curb blocks for pedestrian road boundaries, an opening is formed over the entire length of the block facing the roadway, and a rainwater flow groove is formed by inclining downward from the opening toward the inside of the block. As a result, the one having a substantially C-shaped cross section is known (see Patent Document 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 pedestrian boundary that can solve the problems and avoid an accident in which a person's shoe or a bicycle wheel slides into the rainwater channel from the 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,
Several protrusions (13) are formed on the bottom edge (12) of the opening (10) to protrude upward through the inflow slit port (12a),
The bottom edge (12) in which the inflow slit opening (12a) is formed is formed so as to coincide with the surface of the roadway (9) during construction, and the projecting portion (13) is formed from the surface of the roadway (9). It was set as the structure formed so that it might protrude upwards.

Moreover, the curb block for the pedestrian road boundary according to claim 2 of the present invention is:
The curb block for pedestrian road boundary according to claim 1, wherein the several protrusions (13) are concrete protrusions integrally molded with the block.

The curb block for pedestrian boundary of the present invention (Claim 1) has several protrusions formed on the bottom edge of the opening via the inflow slit opening, and the protrusions protrude upward from the surface of the road. The structure formed as described above is characterized.

In this way, by forming the protruding portion, the protruding portion becomes a wall and it is possible to suppress earth and sand, dust, etc. on the surface of the roadway from flowing in from the opening, and the rainwater passage groove is made of earth and sand and dust. It is possible to eliminate problems such as clogging.

In addition, since the bottom edge of the opening portion where the inflow slit port is formed coincides with the surface of the roadway, the inflow of rainwater can be ensured through the inflow slit port, and the curbstone for the pedestrian boundary that is the original function The water flow function using the inside of the block can be maintained.

In addition, since the protrusion is formed in the opening, this protrusion becomes a gart wall, and when a person walks or runs along a curb block for the pedestrian road boundary or a bicycle runs, 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 in 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.

Then, several (eight in the embodiment) projecting portions 13 are formed on the bottom edge 12 of the opening 10 so as to project upward through the inflow slit port 12a.
The protrusion 13 is a concrete protrusion integrally molded with the block, and the protrusion 13 can be easily and firmly formed by the concrete integral molding.

The inflow slit port 12a has a bottom surface formed by the 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 protrusion 13 protrudes upward from the surface of the roadway 9.

Thus, since the protrusion part 13 was formed in the opening part 10 via the inflow slit port 12a, the protrusion part 13 was made to function as a wall, ensuring an inflow of rainwater by the inflow slit port 12a, and an opening part Inflow of earth and sand, garbage, etc. from 10 can be prevented.

In this case, sand or dust of a larger size can be prevented from flowing into the inflow slit port 12a by the projecting portion 13. However, dirt or the like of fine particles or the like passes through the inflow slit port 12a and passes through the rainwater flow channel. 11 flows in.

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 so that small-sized soil such as fine particles is washed away so that it does not accumulate in the rainwater flow groove 11.

Moreover, since the protrusion part 13 was formed in the opening part 10, the protrusion part 13 functions as a girt wall, and it can avoid the accident that a person's shoes and the wheel of a bicycle slip into the rainwater flow groove 11 from the opening part 10. .

The curb road boundary curb block 1 according to the second embodiment is different from the first embodiment in the structure of the protrusion 13 as shown in FIG. Other configurations are the same as those of the first embodiment.

The projecting portion 13 of the second embodiment has a projecting portion on the bottom edge 12 of the opening 10 by attaching a plate member 13a such as a metal plate to the block by the anchor 13b along the lower inclined surface 11c of the rainwater channel 11. 13 is formed to protrude upward through the inflow slit port 12a.

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 upper 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.

During construction, the upper surface of the water-impermeable layer 9b is made to coincide with the lower end of the gap S formed by the spacer 5, and the water-permeable surface layer 9a is laid thereon so that the surface coincides with the upper 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.

It is to be noted that rainwater flowing on the surface of the water permeable surface layer 9a is made to flow into the rainwater flow groove 11 through the slit port 12 of the opening 10 as in the first embodiment.

DESCRIPTION OF SYMBOLS 1 Curb block for curb boundary 1a Front 10 Opening part 11 Rain water flow groove 12 Bottom edge 12a Inlet slit port 13 Protrusion part 9 Car 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,
Several protrusions (13) are formed on the bottom edge (12) of the opening (10) to protrude upward through the inflow slit port (12a),
The bottom edge (12) in which the inflow slit opening (12a) is formed is formed so as to coincide with the surface of the roadway (9) during construction, and the projecting portion (13) is formed from the surface of the roadway (9). A curb block for pedestrian boundary that is formed so as to protrude upward. The pedestrian boundary curb block according to claim 1, wherein the several protrusions (13) are concrete protrusions integrally formed with the block.

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