JPH08218480A - Invert member and catch basin - Google Patents

Abstract

PURPOSE: To provide an invert member which is lightweight and easy to manufacture and has high mechanical adhesive strength between a passage member and a substrate. CONSTITUTION: A passage member 11 has a recessed groove 111 forming a passage on one face side X1, and the recessed groove 111 is made of a molding with a nearly constant thickness. A substrate 12 is made of a material having the specific gravity smaller than that of the passage member 11, it is filled to bury a recess 112 formed in response to the shape of the recessed groove 111 on the opposite side X2 to one face side X1 of the recessed groove 111, and it is integrated with the passage member 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an invert member and a drainage basin.

[0002]

2. Description of the Related Art In a conventional drainage basin, an inflow pipe connecting portion communicating with the inside and outside of the basin body is formed on an outer wall of the basin body made of concrete. A flow passage is provided on the inner bottom surface of the bottom of the sill body and is connected to the inflow pipe connecting portion, and this flow passage is communicated with the discharge pipe connecting portion provided on the outer wall of the sill body.
Sewage that has flowed into the basin body from the inflow pipe connected to the inflow pipe connection portion passes through the flow path and is discharged to the outside of the basin body from the discharge pipe connection portion.

However, in the above-mentioned conventional drainage basin, since the whole of the basin body including the flow path is made of concrete, it is extremely heavy and requires a great deal of labor for the laying work. With a large drainage basin such as a manhole that constitutes a manhole bottom block, the weight reaches around 250 kg, which makes handling, storage and installation extremely difficult. Further, in the conventional drainage basin, since the whole of the basin body including the flow path is a concrete molded body, the flow path cannot be changed after the molding. Therefore, it is necessary to prepare various drainage basins and molding dies according to the shape of the flow path. Furthermore, in the conventional drainage basin, if the flow path is changed during the laying, the laying must be redone.

Japanese Patent Laid-Open No. 6-117014 can be cited as an example of a prior art document aimed at solving the above-mentioned problems. In Japanese Patent Laid-Open No. 6-117014,
The base of the invert member is made of urethane foam or styrene foam, and the surface of the base is covered with a synthetic resin. The synthetic resin coating is formed by adsorbing the synthetic resin sheet on the surface of the substrate by vacuum suction.

In this prior art, since the base member of the invert member is made of urethane foam or styrofoam, it is extremely lightweight and is 1/10 to 10 times the conventional weight.
Weight can be reduced to 1/50 or less. Therefore, the burden on workers during manufacturing and installation work is significantly reduced. Also, since the invert member is coated with synthetic resin,
Improves durability, drainage and chemical resistance.

However, in this prior art, since it is necessary to attach the synthetic resin sheet to the substrate by vacuum suction while heating, a heating device and a vacuum suction device are indispensable, and the equipment cost and the manufacturing cost are low. It has the drawback of becoming expensive.

Further, since the synthetic resin sheet is attached to the base and is not in close contact with the base due to plastic deformation when heated and sucked in vacuum, the synthetic resin sheet is easily separated from the base. It turns out that it has a drawback that it does.

[0008]

An object of the present invention is to reduce the weight of conventional concrete invert members by 1 /
An object of the present invention is to provide an invert member that is reduced in weight to 10 to 1/50 or less, and a drainage basin using the invert member.

Another object of the present invention is to provide an invert member having excellent durability, chemical resistance and drainage property, and a drainage basin using the same.

Still another object of the present invention is to provide an invert member which is easy to manufacture and a drainage basin using the same.

Still another object of the present invention is to provide an invert member having a high mechanical adhesion strength between a flow path member and a substrate, and a drainage basin using the invert member.

[0012]

In order to solve the above problems, an invert member according to the present invention includes a flow path member and a base body. The flow path member is a molded body having a concave groove forming a flow path on one surface side, and the concave groove has a substantially constant thickness. The base is made of a material having a specific gravity smaller than that of the flow path member, and is filled on the side opposite to the one side where the groove is provided so as to fill a recess formed depending on the shape of the groove. It is integrated with the road member.

Preferably, the flow path member is a synthetic resin,
It is made of concrete or mortar or a material containing these as a main component and a reinforcing fiber. The substrate is made of urethane foam or polystyrene foam.

The drainage basin according to the present invention includes a basin body and an invert member. The basin body has a bottom and an outer wall, and the outer wall is provided around the bottom and includes a pipe connecting portion. The invert member is the above-described invert member according to the present invention, and is arranged on the bottom portion of the grid main body.

[0015]

Since the invert member includes the flow path member and the base body, and the base body is made of a material having a smaller specific gravity than the flow path member, the weight reduction can be achieved according to the difference in specific gravity between the flow path member and the base body. In comparison with the conventional concrete invert member, it becomes extremely lightweight.

Since the flow path member has a concave groove forming a flow path on one surface side, it is possible to secure durability, chemical resistance and drainage property against drainage flowing through the invert portion. Therefore, the base does not need to have durability, chemical resistance and drainage, and the base can be made of a lightweight material, ensuring the durability, chemical resistance and drainage required for the invert member. At the same time, the weight of the invert member can be reduced.

Since the flow path member is a molded body in which the concave groove has a substantially constant wall thickness, it is durable with a minimum necessary material.
Chemical resistance and drainage can be secured. Therefore, even if the flow path member is made of synthetic resin, concrete, mortar, or the like, which has excellent durability, chemical resistance, and drainage and has a large specific gravity, the ratio of the lightweight base material occupying the inversion member is increased, The weight of the member can be minimized. Further, since the expensive material of the flow path member can be suppressed to the necessary minimum, an inexpensive invert member can be obtained.

Therefore, in a preferred example in which the substrate is urethane foam or styrene foam, the weight can be reduced to 1/10 to 1/50 or less of the weight of the conventional concrete invert member.

The base body is filled on the side opposite to the one surface side of the flow path member on which the groove is provided so as to fill up the concave portion generated depending on the shape of the groove, and is integrated with the flow path member.
When the invert member is installed in the drainage basin, the seating of the flow path member can be stabilized, the alignment of the flow path member and the pipe connection portion provided in the basin body is facilitated, and the drainage basin of the invert member is Installation work on the

Since the base body is configured to be filled on the side opposite to the one surface side of the flow path member on which the groove is formed, the flow path member is formed so as to fill the recessed portion formed depending on the shape of the groove. The invert member can be easily manufactured by putting it in a mold and supporting it, and filling the base material around it.

Since the base body is filled on the side opposite to the one surface side of the flow path member on which the groove is formed so as to fill up the concave portion generated according to the shape of the groove and is integrated with the flow path member,
An invert member having high mechanical adhesion strength between the flow path member and the base can be obtained.

Since the drainage basin according to the present invention uses the above-mentioned invert member, a drainage basin including all the advantages described above can be obtained.

[0023]

1 is a perspective view of an invert member according to the present invention. The invert member 1 according to the present invention is a flow path member 1
1 and the base 12. The flow path member 11 has one surface X1.
Has a concave groove 111 forming a flow path, and the concave groove 111 is a molded body having a substantially constant thickness. Flow path member 11
Is designed to cover the entire one surface side X1, assuming that drainage overflows from the concave groove 111. Flow path member 11
Can be made of synthetic resin, concrete, or mortar, or a material containing these as a main component and a reinforcing fiber. When it is made of synthetic resin, polyethylene or polypropylene recycled plastic can be used. As the reinforcing fibrous material, glass, carbon, vinylon, polypropylene and the like are preferable.

The base 12 is made of a material having a smaller specific gravity than that of the flow path member 11, and fills the concave portion 112 formed according to the shape of the concave groove 111 on the side X2 opposite to the one surface side X1 having the concave groove 111. And is integrated with the flow path member 11. The base 12 is preferably made of urethane foam or styrene foam.

As described above, the invert member 1 includes the flow path member 11 and the base 12, and the base 12 is the flow path member 1.
Since it is made of a material having a specific gravity smaller than 1, it is possible to reduce the weight according to the difference in the specific gravity between the flow path member 11 and the base body 12, and it is extremely lightweight as compared with the conventional concrete invert member. Become.

Since the flow path member 11 has the concave groove 111 which forms a flow path on the one surface side X1, it is necessary to secure durability, chemical resistance and drainage property against the drainage flowing through the invert portion. You can Therefore, it is not necessary for the base 12 to have durability, chemical resistance, and drainage, the base 12 can be made of a lightweight material, and the durability, chemical resistance, and drainage required for the invert member 1 can be obtained. It is possible to reduce the weight of the invert member 1 while ensuring the property.

Since the flow channel member 11 is a molded body in which the concave groove 111 has a substantially constant wall thickness, durability, chemical resistance and drainage can be ensured with the minimum necessary material. Therefore, even if the flow path member 11 is made of synthetic resin, concrete, mortar, or the like having excellent durability, chemical resistance, and drainage properties and having a large specific gravity, the ratio of the lightweight base 12 to the invert member 1 is increased. Therefore, the weight of the invert member 1 can be reduced to the maximum. Moreover, since the expensive material of the flow path member 11 can be suppressed to a necessary minimum, an inexpensive invert member can be obtained.

Therefore, when the substrate 12 is made of urethane foam or polystyrene foam, the weight can be reduced to 1/10 to 1/50 or less of the weight of the conventional concrete invert member.

The substrate 12 has one surface X1 on which the concave groove 111 is provided.
On the opposite side X2, the flow path member 11 is filled so as to fill the concave portion 112 generated depending on the shape of the concave groove 111.
When the invert member 1 is installed in a drainage basin (not shown), the seat of the flow path member 11 can be stabilized and the flow path member 11 and the pipe connecting portion provided in the basin body can be integrated. The position of the invert member 1 becomes easier.
Installation work in the drainage basin becomes easy.

The base body 12 has one surface side X1 having the concave groove 111.
The opposite side X2 is filled so as to fill the concave portion 112 generated depending on the shape of the concave groove 111. For this reason,
The invert member can be easily manufactured by putting the flow path member 11 in a mold and supporting it, and filling the base 12 around it.

The substrate 12 has one surface X1 on which the concave groove 111 is provided.
On the opposite side X2, the flow path member 11 is filled so as to fill the concave portion 112 generated depending on the shape of the concave groove 111.
It is integrated with. Therefore, the flow path member 11 and the base 1
It is possible to obtain an invert member having high mechanical adhesion strength with 2.

FIG. 2 is a perspective view of another embodiment of the invert member according to the present invention. In the figure, the same reference numerals as those in FIG. 1 denote the same components. In the present embodiment, the flow path member 11 constitutes only the concave groove 111, assuming that the drainage does not overflow from the concave groove 111. Also in this embodiment, the same operational effects as those of the above embodiment can be obtained.

FIG. 3 is a plan view of the drainage basin according to the present invention, and FIG.
FIG. 4 is a sectional view taken along line A4-A4 of FIG. The drainage basin according to the present invention includes a basin body 2 and an invert member 1. The container main body 2 has a bottomed tubular shape having a bottom portion 20 and a tubular outer wall 21 rising from the outer peripheral portion of the bottom portion 20.
1 is formed with a pipe connection portion 22 which communicates with the inside and outside of the main body 2. The pipe 8 is connected to the pipe connecting portion 22.

The invert member 1 is the invert member according to the present invention shown in FIG. 1, and the bottom portion 20 of the grid main body 2 is so arranged that the concave groove 111 communicates with each pipe connecting portion 22 of the grid main body 2.
Placed on top. In this embodiment, the number of the pipe connecting portions 22 is three, but the number is arbitrary, and the number of the concave grooves 111 can also be arbitrarily determined. When the flow path member 11 forming the invert member 1 is made of synthetic resin and the base body 12 is made of urethane foam or styrofoam, the specific gravity becomes smaller than the specific gravity of the drainage, and it rises. Therefore, a fixing member 23 such as an emulsion rubber-containing mortar or a synthetic resin adhesive is packed between the side surface 13 of the invert member 1 and the inner wall 24 of the container body 2 to fix the space between the invert member 1 and the container body 2. is there. Instead of the fixing member 23, or
A stopper such as a wedge may be used together with the fixing member 23. Although not shown, the fixing member 23 can also be packed on the bottom surface of the invert member 1.

As described above, since the drainage basin according to the present invention uses the above-described invert member 1 according to the present invention, a drainage basin including all of the above advantages can be obtained. Further, since the inverting member 1 and the tub body 2 are configured separately,
In the manufacturing process and the laying process, the invert member 1 and the grid main body 2 can be handled separately. Therefore, the weight burden on the worker during manufacturing and installation work is reduced.

[0036]

As described above, according to the present invention, the following effects can be obtained. (A) 1 of the weight of the conventional concrete invert member
It is possible to provide an invert member lightened to / 10 to 1/50 or less and a drainage basin using the invert member. (B) It is possible to provide an invert member having excellent durability, chemical resistance, and drainage and a drainage basin using the same. (C) An invert member that is easy to manufacture and a drainage basin using the same can be provided. (D) It is possible to provide an invert member having high mechanical adhesion strength between the flow path member and the base body, and a drainage basin using the invert member.

[Brief description of drawings]

FIG. 1 is a perspective view of an invert member according to the present invention.

FIG. 2 is a perspective view of another embodiment of the invert member according to the present invention.

FIG. 3 is a plan view of a drainage basin according to the present invention.

4 is a cross-sectional view taken along the line A4-A4 of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Invert member 11 Flow path member 111 Recessed groove 12 Base body 2 Masu main body

Claims (4)

[Claims] 1. An invert member including a flow path member and a base body, wherein the flow path member has a concave groove forming a flow path on one surface side,
The groove is a molded body having a substantially constant wall thickness, the base is made of a material having a smaller specific gravity than the flow path member, on the side opposite to the one surface side with the groove, An invert member which is filled so as to fill a concave portion generated according to the shape of the concave groove and is integrated with the flow path member. 2. The invert member according to claim 1, wherein the flow path member is made of synthetic resin, concrete, or mortar, or a material containing these as a main component and a reinforcing fiber material. 3. The invert member according to claim 1, wherein the base body is made of urethane foam or styrene foam. 4. A drainage basin including a basin body and an invert member, wherein the basin body has a bottom portion and an outer wall, the outer wall being provided around the bottom portion and including a pipe connecting portion. The drainage basin according to any one of claims 1 to 3, wherein the inversion member is disposed on the bottom portion of the basin body.