JPH084096A - Side-ditch made of synthetic resin - Google Patents

Abstract

PURPOSE:To secure a large quantity of flow and prevent the floating of a side-ditch caused by earth pressure by forming the opening of a synthetic resin pipe body to be narrower than the diameter of a largest diameter part, and forming erected walls at the opening edges. CONSTITUTION:An opening 13 with the relation between the diameter M of a pipe body and the width L of the opening 13 being L<M is formed at a side-ditch 10 made of synthetic resin. Erected walls 14 erected outward are formed in the upper part opened state at the respective edges 13a of the opening 13 of the pipe body. A fit-in lid provided with a cover plate can be fitted to the erected walls 14. The side-ditch 10 of such constitution is placed side by side with a buried ditch, and the receiving part of the adjacent side-ditch 10 is fitted to an outer fitting part for positioning. Sediment is made reach the upper end of the fit-in part. A large quantity of sediment can be placed on the upper outer surface of the pipe body 12 since the erected walls 14 of the pipe body are formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin gutter capable of reducing the size of an opening and securing a large flow rate.

[0002]

2. Description of the Related Art As a side groove, a gutter-shaped U-shaped groove having a U-shaped cross section has been widely known. The U-shaped groove has a large open upper surface. As a material of the U-shaped groove, concrete or synthetic resin is known.

[0003] Of these, the U-shaped groove made of synthetic resin is light in weight and therefore easy to transport, but may be lifted or deformed by the earth pressure from the side when constructed. In order to solve this, there is also known a U-shaped groove provided with a floating prevention plate protruding in the width direction on a side surface thereof.

[Problems to be Solved by the Invention]

[0004] The U-shaped groove has a large opening on the upper surface and an opening having the same width as the flow path, so that dust and the like easily enter the U-shaped groove.
A flow rate larger than the width of the groove cannot be secured.

[0005] In addition, in the case of a U-shaped groove made of synthetic resin, a groove having a width larger than the width of the U-shaped groove, that is, a side surface of the U-shaped groove is laterally formed at the time of construction in order to prevent floating against earth pressure. It is necessary to dig a groove that is wide enough to cover the protruding prevention of floating. For this reason, there is a problem that the amount of work at the time of construction increases and the construction cannot be performed unless the groove width for burying can be secured wide.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to narrow the opening and to secure a large flow rate, while providing a side groove made of synthetic resin having a floating preventing function. To provide.

[0007]

The present invention has the following constitution in order to achieve the above object. That is, an opening in the axial direction having a width narrower than the diameter of the maximum diameter portion of the tubular body is formed in the upper end surface portion of the synthetic resin tubular body, and a standing wall is formed along the opening edge of this opening. It is characterized by It is also possible to provide a fitting lid that fits on the upper edge of the standing wall, and form an inlet for partially covering the fitting lid with grating or the like. Further, the fitting lid may be integrally formed with the standing wall.

[0008] A trough-shaped groove may be formed on the bottom surface of the tubular body.

[0009]

Next, the operation will be described. Since the synthetic resin gutter forms a narrow opening in the synthetic resin tubular body, and an upright wall in the axial direction is formed at the opening edge of this opening, dust and the like from the opening can be reduced. On the other hand, it is possible to secure a large flow rate.
In addition, the fitting lid fitted to the upper edge of the standing wall can be appropriately provided with an inlet for partially covering it with grating, etc., so that the amount of rainwater or the like can be adjusted through the opening and sand or the like can enter. It is also possible to prevent.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

1 to 3 show a front view, a side view and a plan view of a synthetic resin side groove according to the present invention. An opening 13 is formed on the upper surface of a tubular body 12 having a circular cross section that constitutes the synthetic resin side groove 10 according to the present invention. This opening 1
3 and the diameter M of the tubular body 12 are formed such that L <M. The opening 13 of the tubular body 12
The upper surface portion on the side is defined as shoulders 12a, 12a.

Each edge 13a, 1 of the opening 13 of the tubular body 12
Upstanding walls 14, 14 that stand outward are formed in 3 a. The upper surfaces of the standing walls 14 and 14 are open,
Cover the fitting lid 18. As shown in FIG. 4, fitting portions 18a, 18a are formed on the side edges of the fitting lid 18, and the standing wall 1
It is possible to fit the upper edge 14a of 14 and 14a. The center of the fitting lid 18 is a cover plate 19 that is depressed below the fitting portions 18a and 18a. Also, the cover plate 19
Has an inlet 19 for partially covering with grating or the like.
are formed.

A receiving portion 20 which is a part of a spherical surface and has a predetermined width is formed at one end of the side groove 10. On the other hand, an external fitting portion 22 is formed at the other end of the side groove 10 so as to cover the outside of the receiving portion 20 on one end side. The receiving portion 20 and the outer fitting portion 22 both form part of a spherical surface, and the connecting side grooves 10 and 10 can be connected at an angle to the axis. The external fitting portion 2
Packing groove 22a protruding in the outer radial direction on the inner peripheral surface of
Is formed, and a packing 24 such as an O-ring is accommodated therein.

FIG. 5 schematically shows a state in which the side grooves 10a and 10b are connected. This figure shows the side grooves 10a, 1
Only the lower part of 0b is shown.

The opening 13 is formed in the receiving portion 20 and the outer fitting portion 22. On the other hand, the standing walls 14, 14
Extends to the opening of the outer fitting portion 22, but is not formed in the receiving portion 20. Therefore, the receiving portion 20 and the external fitting portion 2
2, the upright walls 14, 14 of the adjacent side grooves 10a, 10b do not interfere with each other.

In the above embodiment, the fitting cover 18 is connected to the upright wall 1.
Although fitted to the upper edges 14a and 14a of Nos. 4 and 14, they may be integrally formed with the standing walls 14 and 14 in advance. The tubular body 12 is not limited to a straight pipe, and may be a corrugated tubular body having a spiral or individual waves formed on the peripheral surface.

In order to use the side groove 10 constructed as described above, as shown in FIG.
.. Are arranged in the groove 30, and the receiving portion 20 and the outer fitting portion 22 of the adjacent side groove 10 are fitted and positioned at a predetermined angle with respect to the axis. Then, the groove 30 is backfilled with earth and sand.

When backfilling the earth and sand in the groove 30,
The level G of the fitting portion 18a of the fitting lid 18 is reached. In this way, rainwater or the like can easily flow onto the cover plate 19. Also, the side groove 10
.. Since earth and sand are present on the shoulders 12a, 12a of .., it is possible to prevent the side grooves 10 ... from floating due to earth pressure. The upright wall 1 standing from the opening 13 of the tubular body 12
4 and 14 are formed, the upright walls 14 and 14
Of the upper surface of the tubular body 12 (shoulders 12a, 12a).
a) A lot of sand can be placed on top.

Since the openings 13 of the side grooves 10 ... Are narrow and the diameter of the tubular body 12 is large, dust and the like can be prevented from entering through the openings 13, while a large flow rate is maintained. Can be secured. That is, a large flow rate can be secured as compared with the width of the opening 13.

FIG. 7 shows a modification. Gutter 1 of this embodiment
0 is a gutter-shaped groove 11 formed on the bottom surface of the side groove 10 of the above-described embodiment. In this case, as compared with the case where the bottom is simply formed in an arc shape, water and the like collect in the groove 11, and even small amount of water can be secured as flowing water without stagnation.

In the above embodiment, a tubular body having a circular cross section is used as the tubular body 12, but it is sufficient that shoulders 12a, 12a are formed on the tubular body 12 continuing from the upright walls 14, 14.
It may be an inverted triangle (see FIG. 8), a rectangle (see FIG. 9), or a polygon.

FIG. 10 shows an embodiment in which holes 14a are formed at predetermined positions of the upright wall 14 of the side groove 10. As shown in FIG. The upright wall 14 is buried in the soil, and rainwater or the like in the soil can be introduced into the gutter 10.

In the above embodiment, as described above, a spiral wave or an independent wave may be applied to the inner and outer peripheral surfaces of the tubular body 12, but this can secure the strength of the side groove 10. . Further, since the tubular body 12 itself can be reinforced by forming the groove 11 on the bottom surface of the side groove 10, a straight pipe may be used.

Although various preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and many modifications can be made without departing from the spirit of the invention. Of course.

[0025]

The synthetic resin side groove according to the present invention has a narrow opening formed in a synthetic resin tubular body, and an upright wall in the axial direction is formed at each opening edge of the opening. While it is possible to reduce intrusion of dust and the like from the openings, it is possible to secure a large flow rate.

Further, the fitting lid fitted to the upper edge of the standing wall can be appropriately provided with an inflow port for partially covering it with grating or the like, adjusting the amount of rainwater or the like from the opening, sand, etc. It is also possible to prevent the invasion of. On the other hand, by integrally forming the fitting lid and the standing wall, manufacturing becomes easy.

By forming a gutter-shaped groove on the inner bottom surface of the tubular body, water and the like are collected in the groove and a smaller amount of water can be flowed as compared with the case where the bottom surface is simply formed in an arc shape.

Furthermore, since the opening is narrow, it is possible to place earth and sand on the outer surface (shoulder) of the upper part of the tubular body, and to prevent floating due to earth pressure from the side of the gutter. Play.

[Brief description of drawings]

FIG. 1 is a front view of a synthetic resin side groove according to the present invention.

FIG. 2 is a side view of a gutter made of synthetic resin according to the present invention.

FIG. 3 is a plan view of a synthetic resin side groove according to the present invention.

FIG. 4 is a partial perspective view of a fitting lid.

FIG. 5 is an explanatory view partially showing a fitting state between a receiving portion of the side groove and a fitting portion.

FIG. 6 is an explanatory view showing a state in which a gutter is buried in soil.

FIG. 7 is an explanatory view showing a shape of a side groove according to another embodiment.

FIG. 8 is a schematic side view showing the shape of a side groove.

FIG. 9 is a schematic side view showing a shape of a side groove.

FIG. 10 is a front view showing a modification of the side groove.

[Explanation of symbols]

 10 Gutter 12 Tubular Body 12a Shoulder 14 Standing Wall 18 Fitting Lid

Claims (5)

[Claims] 1. An axial opening narrower than the diameter of the maximum diameter portion of the tubular body is formed at the upper end surface portion of the synthetic resin tubular body, and a standing wall is formed along the opening edge of the opening. A gutter made of synthetic resin, characterized in that 2. A fitting lid for fitting to an upper edge portion of the standing wall is provided, and an inlet for partially covering the fitting lid with a grating or the like is formed. Gutter made of synthetic resin. 3. The gutter made of synthetic resin according to claim 2, wherein the fitting lid is formed integrally with the standing wall. 4. The gutter made of synthetic resin according to claim 1, wherein a gutter-shaped groove is formed on the bottom surface of the tubular body. 5. The synthetic resin gutter according to claim 1, 2, 3 or 4, wherein the tubular body is a circular tube.