JP3022672U - Road drain - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a device that can prevent the outflow of sediment due to rainfall on unpaved roads such as forest roads and work roads, and improve the durability of the device. [Structure] A flexible member 2 made of a rubber plate or the like is fixed to a square member 1 made of Karamatsu or the like. The flexible member 2 has a two-fold structure, and the lower end 21 is formed by overlapping both side edges 21a and 21b.
Are fixed along the longitudinal direction of the timber 1. The timber 1 is embedded in a road surface such as a forest road or a work road, and at this time, an upper end 22 of the inverted U-shape of the flexible member 2 is projected onto the road surface. The flow of rainwater flowing down from the top of the mountain is changed at the upper end 22 of the flexible member 2 so that it can be discharged to the valley.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention mainly relates to a road surface drainage device that prevents the outflow of sediment on unpaved road surfaces such as forest roads.

[0002]

[Prior art]

 Generally, in forests, forest roads and work roads leading to the inside and outside of the forest are constructed for the purpose of transportation of forest products and transportation required for forestry management. Since the forest roads and work roads are generally unpaved and the drainage of the forest roads and work roads is largely related to the maintenance of the forest roads and work roads, the rainwater on the road surface, the water flowing out from the side slopes, or Water beside the road must be promptly removed so that it will not stagnate and water will not enter the roadbed.

The most common drainage method for that purpose is to provide a gutter along the roadside, but according to this gutter, when the collected water is made to flow down for a long period of time, the flow rate increases and overflows to scour the road surface. Therefore, it is necessary to select a suitable place and install a crossing culvert to cross the road from the mountain side and discharge it to the valley side. However, the construction cost is huge due to the ditches and cross-ditch, and even if there is a cross-ditch, there is a problem that the gutter overflows when the rainfall is heavy.

Therefore, conventionally, a drainage tool is buried in the road surface at a required interval, and the drainage tool discharges the running water on the road surface to the valley side.

Conventionally, the drainage tool is configured by fixing a rubber plate B between plate materials A and A made of plywood such as cedar as shown in FIG. The plate members A, A are embedded toward the bottom of the rubber plate B so that the upper end of the rubber plate B projects above the road surface R. According to this drainage tool, the rainwater that has flowed out onto the road surface R is discharged along the rubber plate B to the valley side, so that the outflow of the soil on the road surface R can be prevented.

[0006]

[Problems to be solved by the device]

 However, according to the above-mentioned conventional drainage tool, since the plate material is used as the fixed object of the rubber plate, there is a disadvantage that it is necessary to dig the road surface more than the plate material height at the time of burying, which requires much time and labor. . In particular, since plywood such as cedar was used as the plate material, internal corrosion proceeded quickly and forced to be reconstructed early.

Further, since one end of the rubber plate is simply fixed to the plate member, the other end protruding on the road surface is deteriorated due to repeated pressure of the traveling vehicle and the durability is extremely poor. was there.

Therefore, an object of the present invention is to develop a device for road surface drainage that is low in cost and durable, and that can appropriately remove running water on the road surface.

[0009]

[Means for Solving the Problems]

 As a means for achieving the above object, the present invention comprises a square bar buried from one side of the road to the other side and a flexible member fixed to the square bar, and the flexible member is folded in two. As a result, a lower end formed by overlapping both side edges is fixed along the longitudinal direction of the above-mentioned square bar, and an inverted U-shaped upper end projects above the road surface. is there.

Particularly, in the present invention, in a more preferable aspect, the square bar is made of Karamatsu, and the flexible member is a rubber plate.

Further, according to the present invention, the square bar is divided into at least two pieces so as to be foldable, so that it can be formed into a form suitable for transportation.

The flexible member referred to in the present invention has a required elasticity and strength such as a rubber plate, and is deformed when pressed by a vehicle such as an automobile to relieve an impact on the vehicle. A member that can be restored when the pressure is lost and can guide running water in a predetermined direction.

[0013]

[Action]

 According to the present invention, rainwater flowing down the road surface is temporarily blocked at the upper end of the flexible member protruding above the road surface, and then flows along the flexible member and is discharged to the valley side. Like

In particular, in the present invention, since the flexible member is folded in two, it has high strength and durability, and even if it is pressurized by a vehicle such as an automobile running on the road surface, it quickly restores rainwater. Properly guide in the specified direction.

Further, since a square bar is used as the fixed member of the flexible member, the amount of excavation on the road surface can be reduced during burying, and corrosion is unlikely to occur.

Further, since the timber is divided, the whole can be folded into a fixed length, which is optimal for transportation by a light truck or the like.

[0017]

[Embodiment of device]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a road surface drainage tool according to the present invention. In the figure, 1 is a square member, 2 is a flexible member, and the flexible member 2 is fixed to the square member 1.

The timber 1 is made of wood, especially Karamatsu. For example, the end face 12 has a rectangular shape of 40 mm × 45 mm and has a total length of about 300 to 400 mm, and is made into a prismatic shape. Karamatsu has a property of being highly resistant to water and humidity and has high corrosion resistance as a material, and has been used as a mine / earthen timber / construction material / sleeper, etc., and is optimal as a material for the timber 1 of the present invention. However, it is also possible to lumber such as cedar into a prismatic shape and apply it to an insect-resistant agent or a water-resistant paint.

On the other hand, the flexible member 2 is made of synthetic rubber such as styrene / butadiene rubber, butadiene rubber, butyl rubber, ethylene / propylene rubber, nitrile rubber, urethane rubber, and chloroprene rubber, or natural rubber, or cotton. It consists of a rubber plate with a core material such as canvas. In particular, the flexible member 2 has a two-fold structure as shown in the drawing, and the lower end 21 formed by overlapping both side edges 21a and 21b is fixed along the longitudinal direction of the square bar 2.

Next, FIG. 2 shows a state in which the road surface drainage tool is buried in the road surface R. As shown in this figure, the timber 1 is embedded in the road surface R. It should be noted that a suitable depth for embedding is about 100 mm.

As is clear from FIG. 2, the flexible member 2 has a lower end 21 fixed to one side surface 13 of the square timber 1 with a nail 3 and an inverted U-shaped upper end 22 facing upward. It is designed to project above the road surface R. The amount of protrusion is set to about 100 mm with respect to the road surface R so that the flow of water on the road surface R can be directed in a predetermined direction and at the same time, it does not hinder the running of a vehicle such as an automobile. ing.

Next, FIG. 3 shows a state of a road surface in which a road surface drainage tool is buried. As shown in this figure, the timber 1 is embedded from one side to the other side m, m of the work road M, and at this time, the upper end 22 of the flexible member 2 is projected onto the road surface R. The road surface R is blocked.

In particular, the timber 1 is not embedded orthogonally to the work road M, but one end in the longitudinal direction is on the upper F side of the work road M formed by a slope and the other end is on the lower F ′ side. It is desirable to embed it at a required angle θ with respect to M. Although the angle θ changes depending on the slope of the road surface R, it is preferable to bury it at an angle of about 15 degrees with a slope of about 15 degrees, so that rainwater flowing from the mountain side projects to the road surface R. The flexible member 2 can be guided to the valley side G and discharged.

Therefore, by providing the road surface drainage device on the road surface R at a required interval, most of rainwater can be discharged from the road surface R within the area, so that the flow velocity and the flow rate are particularly low on the downstream side. It reduces and prevents the outflow of sediment.

Here, the timber 1 is fixed to the ground of the road surface R when buried, but it is more effective to increase the fixing force to the ground by tightening both ends with anchor bolts. is there.

Next, another embodiment of the present invention will be described. FIG. 4 is a plan view showing another embodiment of the road surface drainage device according to the present invention. The road drainage device shown in FIG. 4 is an example in which the transportability is improved, and in particular, the entire device can be folded in two.

In the figure, 4 is a square bar made of Karamatsu or the like, and the flexible member 2 is fixed to the square bar 4 as in the above-described embodiment. Among them, the square member 4 is divided into two pieces 4a and 4b having a required length, and both the pieces 4a and 4b are arranged with a required space S in the longitudinal direction.

Therefore, during transportation, as shown by the imaginary line in the figure, the flexible member 2 is bent at the interval S between the fragments 4a and 4b of the square member 4, and the entire length is halved to be loaded on a light truck or the like. It will be possible.

Note that the figure shows an example in which the square piece 4 is composed of two pieces 4a and 4b, but the square piece 4 can be divided into three or more pieces and can be folded in multiple shapes.

Alternatively, a flexible member may be fixed for each piece and the pieces may be embedded in series.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described configuration. For example, metal square pipes are used as the square members 1 and 4, and the flexibility is improved by bolts and nuts. The member 2 may be fixed.

[0032]

[Effect of device]

 According to the present invention, since a square bar is used as a fixed member of a flexible member that is projected onto a road surface such as a forest road or a work road and guides rainwater in a predetermined direction, it has a height higher than that of a conventional plate. Since it can be made smaller, the amount of excavation on the road surface at the time of burying can be reduced and the work can be progressed. In addition, since the surface area can be reduced and the member can be made thicker than the conventional plate material, there is an effect that corrosion is less likely to occur and durability is improved. Particularly, in the invention of claim 2, since Karamatsu is used as the timber, the durability can be remarkably improved.

Further, in the present invention, since the flexible member is folded in two, its strength and elasticity are improved, and even if it is pressurized by the vehicle traveling on the road surface, the rainwater can be quickly restored in a predetermined direction. Therefore, the flexible member is less deteriorated even when it is used for a long period of time, and the durability is improved. Particularly, in the invention of claim 3, since the rubber plate is used as the flexible member, more excellent durability can be obtained.

Further, in the present invention of claim 4, since the timber is composed of at least two pieces, it can be folded and loaded on a truck or the like during transportation, and can be easily put into a predetermined shape when buried. The effect that can be restored to.

[Brief description of drawings]

FIG. 1 is a perspective view showing a road surface drainage device according to the present invention.

FIG. 2 is a cross-sectional view showing a state in which a road surface drainer is buried in a road surface.

FIG. 3 is a perspective view showing a road surface in which a road drainage device is buried.

FIG. 4 is a plan view of a road surface drainage device showing another embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a state in which a conventional drainage tool is buried in a road surface.

[Explanation of symbols]

 1 square timber 12 end surface 13 side surface 2 flexible member 21a, 21b side edge 21 lower end 22 upper end 3 nail 4 square timber 4a, 4b fragment R road surface M work road m, m roadside

Claims (4)

[Scope of utility model registration request] 1. A square bar embedded from one side of the road to the other side, and a flexible member fixed to the square bar,
The flexible member has a double-fold structure in which the lower end formed by overlapping both side edges is fixed along the longitudinal direction of the square bar, and the inverted U-shaped upper end projects onto the road surface. Drainage equipment for road surfaces. 2. The drainage tool for road surface according to claim 1, wherein the timber is made of Karamatsu. 3. The road surface drainage device according to claim 1, wherein the flexible member is a rubber plate. 4. The drainage tool for road surface according to claim 1, wherein the timber is divided into at least two pieces.