JPH11222913A - Resin cesspool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form an installing hole in an accurate position at a job site by using a conventional metal mold by applying plural positioning indications to bore a connecting installing hole of an inflow pipe and an outflow pipe to a side wall of a cesspool main body of an upper opening. SOLUTION: A connecting installing hole of an inflow pipe and an outflow pipe is accurately bored in a prescribed position of a side wall 2 by a hole saw by using plural positioning indications 4, 5 applied to the side wall 2 of a main body 1 as a mark. In this case, a central position to bore the installing hole is easily positioned by means of visual observation by using a graduation display 4 to show a vertical height position and a graduation display 5 to show a circumferential directional angle position as a mark. Burying work is completed by backfilling/tamping earth/sand in an excavating groove by forming a drain conduit by respectively connecting the inflow pipe and the outflow pipe to an inflow port and an outflow port. Therefore, the inflow port and the outflow port can be accurately bored in a prescribed position by using an intersection of two kinds of graduation displays 4, 5 to show the height position and the angle position as a mark.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin reservoir which can accurately provide a mounting hole for connecting an inflow pipe and an outflow pipe at a predetermined position on a side wall.

[0002]

2. Description of the Related Art As a conventional reservoir, for example, in FIG. 5 of Japanese Utility Model Publication No. 61-45261, a plurality of circular or oval punched grooves are formed on the outer surface of a side wall of a reservoir main body having an inverted truncated cone shape. The one made of foamed polypropylene resin integrally formed at the time of manufacture is shown.

[0003]

However, in order to form a plurality of punched grooves on the outer surface of the side wall of the reservoir, as in the conventional reservoir, it is necessary to form a punch on the inner surface of the outer mold of the injection mold. Protrusions corresponding to the grooves had to be provided, and there was a problem that the cost for manufacturing the mold was high and the cost was high. In addition, there is also a problem that the cost for repairing and maintaining the protrusion is additionally generated because the convex portion is worn with the use of the mold.

The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to use a conventional mold almost as it is without performing special processing on the mold, and to provide a method for a construction site. Another object of the present invention is to provide a resin reservoir that can be formed with a hole saw at an accurate position of a connection hole for connection.

[0005]

According to a first aspect of the present invention, there is provided a resin reservoir according to the present invention, in which a mounting hole for connection with an inflow pipe and an outflow pipe is formed in a side wall of a reservoir cell body having an upper part opened. Are provided with a plurality of markings for positioning.

According to a second aspect of the present invention, there is provided a storage tank according to the first aspect, wherein the plurality of marks indicate a scale display indicating a height position in a vertical direction and an angular position in a circumferential direction. And a scale display.

The reservoir in the present invention may be made of a synthetic resin material such as a propylene resin or a vinyl chloride resin, for example, by an injection molding method.

In the present invention, the plurality of positioning marks provided on the side wall of the reservoir box main body may be protrusions other than those drawn on the surface by means such as printing or transfer. In the case where the mark is a convex portion, a concave portion corresponding to the surface of the injection mold (the inner surface in the case of the outer mold, the outer surface in the case of the inner mold) is formed, and the mark is formed at the time of forming the reservoir. What should I do? The marking may be continuous or discontinuous. The part to be marked may be any one of the inner and outer surfaces of the reservoir body.

Further, the form of the sign is desirably a straight line, and is preferably provided in a grid at equal intervals, for example. And, among the plurality of markings, one is a scale display indicating a height position in the vertical direction, and the other is a scale display indicating an angular position in the circumferential direction, so that the operator can visually drill the mounting hole. Can easily be positioned at the center position.

(Function) In the present invention according to the first or second aspect, a plurality of positioning marks provided on the side wall of the storage tank main body are used as marks to accurately flow into a predetermined position of the side wall by a forsaw. Mounting holes for connection with the pipe and the outflow pipe can be drilled.

According to the second aspect of the present invention, since the plurality of markings include a scale display indicating a height position in the vertical direction and a scale display indicating an angular position in the circumferential direction, the two scale displays are marked. As the positioning of the center position for drilling the mounting hole, without using any measuring jig
It can be easily done visually.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. 1 is a partially cutaway front view showing an embodiment of the reservoir according to the present invention, FIG. 2 is a plan view corresponding to FIG. 1, FIG. 3 is a partially enlarged perspective view showing a main part of FIG. 1, and FIG. It is explanatory drawing which shows the use condition of the reservoir shown in FIG.

In FIG. 1, reference numeral 1 denotes an inverted truncated cone-shaped bottomed reservoir main body having an opening 3 at the top.
The reservoir basin body 1 is made of a low-foaming propylene resin, and the outer surface of the upper half of the side wall 2 is provided with
Two kinds of positioning signs 4 and 5 are displayed in a grid pattern. Both marks 4 and 5 are ridges having a protrusion height of about 0.5 mm.

The mark 4 is a scale display indicating the height position in the vertical direction, and is displayed at intervals of, for example, 10 mm. As shown in the figure, the scale display at the bottom is 150, and the height from the bottom of the storage tank body 1 is 150 m.
m. The mark 5 is a scale display indicating the angular position in the circumferential direction, and is displayed at intervals of, for example, two degrees. That is, 180 scale indications are provided in the vertical direction over the outer peripheral surface of the reservoir 1.

At four locations on the inner peripheral surface of the lower portion of the side wall 2 of the reservoir main body 1, elongated locking pieces 6 are integrally formed to project vertically. As shown in FIG. 2, the four locking pieces 6 are provided at positions that divide the lower inner peripheral surface into four equal parts. The four locking pieces 6 have a function of preventing a pool inside the pool from being too fitted into a pool outside and preventing the pool from falling out when a plurality of pools are stacked. The display also indicates that the operator can easily determine the 90-degree direction. In addition,
Reference numeral 7 denotes an annular receiving portion on which the lid 8 is placed.

Next, the mode of use of the above-mentioned reservoir is described. First, at the construction site, a hole is drilled in the side wall 2 of the reservoir box main body 1 using a forsaw 9 (see FIG. 5). At this time, the center position for drilling the mounting hole is determined using the scale display 4 indicating the height position in the vertical direction and the scale display 5 indicating the angular position in the circumferential direction as marks. A fork 9 is attached to the tip of an electric drill (not shown), and about 75 m centering on the intersection of the scale display 4 and the scale display 5
m inlets 21 are formed. Similarly, replace the forsaw 9 with another, and on the side opposite the inlet 21, about 100
An outlet 22 of mm is formed. The perforated reservoir main body 1 is set in an excavation trench in the residential land, and an inflow pipe P1 and an outflow pipe P2 are respectively connected to an inlet 21 and an outlet 22 of the reservoir main body 1.
To form a drainage line. Then, the earth and sand is back-filled in the excavation trench, and burrowed, thereby completing the embedding work.

In this case, since two kinds of scale indications 4 and 5 indicating the height position and the angle position are provided to intersect in a grid pattern, the intersection of the two scale indications 4 and 5 is used as a mark to determine the predetermined position. The inflow port 21 and the outflow port 22, which are mounting holes, can be accurately drilled with a forsaw.

[0018]

According to the first or second aspect of the present invention, a plurality of positioning marks are provided on the side wall of the reservoir box main body for forming attachment holes for connection with the inflow pipe and the outflow pipe. Thus, the mounting holes for connecting the inflow pipe and the outflow pipe can be accurately drilled at predetermined positions on the side wall with the plurality of marks as marks.

According to the second aspect of the present invention, a scale display indicating a height position in a vertical direction and a scale display indicating an angular position in a circumferential direction are used as marks.
The center position for drilling the mounting hole can be easily visually determined without using a measuring jig. As described above, the resin reservoir of the present invention has excellent workability in drilling on site.

[Brief description of the drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of a reservoir of the present invention.

FIG. 2 is a plan view corresponding to FIG.

FIG. 3 is a partially enlarged perspective view showing a main part of FIG. 1;

FIG. 4 is an explanatory diagram showing a use state of the reservoir shown in FIG. 1;

FIG. 5 is a front view showing a partially cut-out hole drilling saw.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Storage basin main body 2 Side wall 21 Inflow 22 Outflow 3 Top opening 4,5 Scale display (marking) 6 Locking piece 7 Receiving part P1 Inflow pipe P2 Outflow pipe

Claims (2)

[Claims] Claims: 1. A side wall of a reservoir main body having an open upper part,
A resin reservoir having a plurality of positioning marks for forming attachment holes for connection to an inflow pipe and an outflow pipe. 2. The resin reservoir according to claim 1, wherein the plurality of indications are a scale indication indicating a height position in a vertical direction and a scale indication indicating an angular position in a circumferential direction.