Manufacturing method for rainwater storage and infiltration facility assembly

Abstract

To provide a production method of an assembly for storage and infiltration equipment for rainwater, etc. that can reduce a production cost of the storage and infiltration equipment for rainwater, etc. by improving efficiency of a production process of the storage and infiltration equipment for rainwater, etc.SOLUTION: A production method of an assembly for storage and infiltration equipment for rainwater, etc. comprises: alternately repeating a strip-like concave part 1d and strip-like convex part 1e on a front surface and a back surface; laminating, in the same direction, resin plate-like members 1 each including a wave-shaped part in which the concave part and the convex part are oblique in at least two different directions with respect to a contour shape; drilling a plurality of water passage holes 2 penetrating in a lamination direction of the plurality of laminated plate-like members; and sequentially laminating the plurality of adjacent plate-like members such that the concave part and the convex part of each plate-like member intersect on a mutually facing surface; and welding at a contact part 1f of a plurality of intersected convex parts. A communicating hole 6 is formed in a surface perpendicular to the lamination direction of the assembly 5 composed of the plurality of welded plate-like members.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a method for manufacturing an assembly used in a rainwater storage facility that stores rainwater, etc., and a rainwater infiltration facility that temporarily stores rainwater, etc., and allows the stored rainwater, etc. to slowly infiltrate into the ground and then discharge it. [Background technology]

[0002] Rainwater storage facilities are buried underground to store collected rainwater, etc. On the other hand, rainwater infiltration facilities are buried underground to temporarily store collected rainwater, etc., and then allow it to slowly infiltrate into the ground to adjust for sudden inflows into rivers, etc., or to ensure the amount of water infiltrating into groundwater veins and prevent land subsidence.

[0003] There are various types of rainwater storage facilities and rainwater infiltration facilities (hereinafter referred to as "rainwater storage and infiltration facilities"). The present applicant has proposed a block-shaped laminated body that can efficiently and widely utilize limited storage space, has excellent mechanical strength, and can freely change its width, depth, and length, and can easily adapt to differences in plan area and volume, as well as a rainwater storage and infiltration facility using the same (see Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-313926 [Patent Document 2] Japanese Patent Application Laid-Open No. 2004-238839 Summary of the Invention [Problem to be solved by the invention]

[0005] The block-shaped laminate (hereinafter referred to as "assembly") described in Patent Documents 1 and 2 above is manufactured by sequentially stacking plate-shaped members having alternating strip-shaped recesses and protrusions on their front and back surfaces, so that the recesses and protrusions intersect on the opposing surfaces of adjacent plate-shaped members, and then bonding the contact portions of the intersecting protrusions together.

[0006] Rainwater storage and infiltration facilities require the provision of water holes for the inflow and outflow of rainwater, etc., and the drilling of communication holes for connecting inlet and outlet pipes for rainwater, etc. However, when the above-mentioned assembly is used to manufacture rainwater storage and infiltration facilities, the drilling of water holes and communication holes is not easy, which is one of the factors that increases the manufacturing costs of rainwater storage and infiltration facilities.

[0007] Therefore, the present invention has been made in consideration of the above problems, and aims to improve the efficiency of the manufacturing process and reduce the manufacturing costs of rainwater storage and infiltration facilities. [Means for solving the problem]

[0008] In order to achieve the above object, the present invention is a method for manufacturing an assembly for rainwater storage and infiltration facilities, which comprises stacking resin plate-like members in the same direction, each of which has alternately repeated strip-shaped recesses and protrusions on the front and back surfaces, and which includes a wave-shaped portion in which the recesses and protrusions are oblique in at least two different directions relative to the outer shape, and forming a plurality of water-passing holes penetrating the stacked plate-like members in the stacking direction. A plurality of rotary drills are used to move up and down and penetrate each of the plurality of water holes simultaneously. The adjacent plate members of the plurality of plate members are stacked in order so that the recessed portions and the protruding portions of each plate member intersect on the opposing surfaces, and at the contact portions of the intersecting protruding portions, Using multiple welding tips that move up and down and come into contact with the contact parts, It is characterized by welding.

[0009] According to the present invention, resin plate-shaped members are stacked in the same direction and multiple water-passing holes are drilled while the plate-shaped members are in close contact with each other, and then adjacent plate-shaped members are stacked and welded in sequence so that the concave and convex portions of each plate-shaped member intersect on opposing surfaces.This makes it difficult for the multiple plate-shaped members to move relative to each other when drilling the water-passing holes, and allows the water-passing holes to be drilled accurately in a short amount of time.

[0010] Also The work time can be reduced by simultaneously drilling the multiple water holes using multiple rotary drills that move up and down to penetrate each of the multiple water holes.

[0011] In addition, the welding at the contact points of the multiple intersecting protrusions of the adjacent plate-like members can be performed simultaneously using multiple welding tips that move vertically and abut against the contact points, thereby shortening the work time.

[0012] In the above manufacturing method, By drilling the communication holes in the surface perpendicular to the stacking direction of the assembly made up of the plurality of welded plate-like members, the communication holes can be formed in a single drilling operation.

[0013] By drilling the communicating holes using a cylindrical rotary cutter that has multiple blades at one end of the cylindrical portion and plate-shaped blades arranged diametrically inside the cylindrical portion, it is possible to cut only the necessary areas, improving work efficiency. [Effects of the Invention]

[0014] As described above, according to the present invention, the manufacturing process can be made more efficient, and the manufacturing costs of rainwater storage and infiltration facilities can be reduced. [Brief explanation of the drawings]

[0015] [Figure 1] 1A and 1B are three-sided views showing a resin plate-shaped member used in a manufacturing method for an assembly for rainwater storage and infiltration equipment according to the present invention, where (a) is a front view, (b) is a plan view, and (c) is a side view. [Figure 2] FIG. 2 is a perspective view of the resin plate member shown in FIG. [Figure 3] 1 is a schematic diagram for explaining the step of drilling a water hole in the manufacturing method of an assembly for rainwater storage and infiltration facilities according to the present invention. FIG. [Figure 4] 1 is a schematic diagram for explaining the step of drilling a water hole in the manufacturing method of an assembly for rainwater storage and infiltration facilities according to the present invention. FIG. [Figure 5]1 is a schematic diagram for explaining a welding process in a manufacturing method of an assembly for rainwater storage and infiltration facilities according to the present invention. FIG. [Figure 6] 1 is a schematic diagram for explaining a welding process in a manufacturing method of an assembly for rainwater storage and infiltration facilities according to the present invention. FIG. [Figure 7] 10 is a schematic diagram for explaining the step of drilling a communication hole in the manufacturing method of the assembly for rainwater storage and infiltration facilities according to the present invention. FIG. [Figure 8] 1 is a schematic diagram showing an assembly for rainwater storage and infiltration facilities manufactured by a manufacturing method according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] Next, embodiments of the present invention will be described in detail with reference to the drawings.

[0017] 1 and 2 show a resin plate-like member (hereinafter referred to as "plate-like member") used in a manufacturing method for an assembly for rainwater storage and infiltration facilities (hereinafter referred to as "assembly") according to the present invention. This plate-like member 1 is a corrugated plate-like member made of thermoplastic resin, and has multiple corrugated portions 1a, 1b extending diagonally in a plan view (corrugated portion 1a extends upward and left, and corrugated portion 1b extends downward and left) on either side of a rectangular apex 1c so as to form a trapezoidal space in a front view. That is, this plate-like member 1 has alternating strip-like recesses 1d and protrusions 1e on the front and back surfaces, and these recesses 1d and protrusions 1e are oblique in two different directions relative to the outer shape.

[0018] Next, the water passage hole drilling step will be described with reference to FIGS.

[0019] 3, a plurality of the plate-like members 1 (four plates (1A to 1D) in the illustrated example) are stacked in the same direction, i.e., while maintaining the front and back surfaces of the plate-like members 1. When the plate-like members 1 are stacked in the same direction, the strip-like protrusions 1e of the lower plate-like member 1D of two adjacent plate-like members 1 (for example, 1C and 1D) enter the strip-like recesses 1d of the upper plate-like member 1C, and the plurality of plate-like members 1 (1C, 1D) are stacked in a state of being in close contact with each other.

[0020] Next, as shown in FIG. 4, while the stacked plate-like members 1 (1A-1D) are held on a table or the like, a plurality of water-passing holes 2 are drilled at once from above using a drilling device such as a plurality of electric rotary drills 3. In this figure, 18 water-passing holes 2 are drilled. Because the plurality of plate-like members 1 (1A-1D) are stacked in close contact with each other, the plurality of plate-like members 1 are less likely to move relative to each other when drilling the water-passing holes 2, the distance the drill needs to travel can be short, and the water-passing holes 2 can be drilled with high positional accuracy. Furthermore, because a plurality of rotary drills 3 or the like are used to drill a plurality of water-passing holes 2 at once, the work time can be shortened.

[0021] Next, the welding step will be described with reference to FIGS.

[0022] As shown in both figures, after drilling the water passage holes, the pair of plate-shaped members 1A and 1B are placed in opposite directions, i.e., the upper plate-shaped member 1A is held upside down with its front and back surfaces facing each other, while the lower plate-shaped member 1B is held upside down, and then they are abutted and fixed on a table or similar. This creates numerous honeycomb-shaped spaces, and the protruding portions 1e (see Figure 1) of the pair of plate-shaped members 1A and 1B come into contact at multiple locations. In this state, as shown in Figure 5(a), the welding part (welding tip 4) of the welding device is abutted against the protruding contact portions 1f from above, welding the multiple protruding contact portions 1f all at once. In this figure, 276 protruding contact portions 1f are welded at once. This allows the pair of plate-shaped members 1 to be joined in a short time.

[0023] Next, another plate-like member 1 is placed above the joined plate-like members 1A and 1B in the opposite direction, and the protruding contact portions 1f are welded in the same manner as above. This process is repeated until, for example, 24 plate-like members 1 are joined together to produce an assembly 5 (see FIG. 7).

[0024] Next, the through-hole drilling step will be described with reference to FIG.

[0025] The assembly 5 consisting of the multiple welded plate-like members 1 is fixed on a table or the like, and a cylindrical cutter 7 having multiple blades (circular double blades 7b, 7c) at one end of the cylindrical portion 7a and a plate-like blade 7d arranged diametrically inside the cylindrical portion 7a is rotated and inserted into the side of the assembly, as shown in Figure 7(c), to drill the communicating holes 6 (see Figure 8). Using the cylindrical cutter 7 makes it possible to cut only the necessary areas. Furthermore, by using a cutter 7 with dimensions corresponding to the diameter of the communicating hole to be drilled, it is possible to accommodate multiple types of communicating holes 6.

[0026] In the above embodiment, a plate-like member 1 is used in which strip-shaped recesses 1d and protrusions 1e are alternately repeated on the front and back surfaces, and these recesses 1d and protrusions 1e are inclined in two different directions relative to the outer shape, but it is also possible to use a plate-like member in which the recesses 1d and protrusions 1e are inclined in three or more different directions relative to the outer shape.

[0027] Furthermore, the above-described embodiments are merely examples and are not intended to limit the technical scope of the present invention. [Explanation of symbols]

[0028] 1(1A~1D) Plate-shaped member 1a, 1b Corrugated plate section 1c Top 1d recess 1e Convex part 1f Convex contact area 2 Water vent 3 Electric rotary drill 4 welding tips 5 Assembly 6 Communication hole 7 Cutter

Claims

1. Resin plate-like members having alternately repeated strip-like recesses and protrusions on the front and back surfaces, the recesses and protrusions including wavy portions oblique in at least two different directions relative to the outer shape, are stacked in the same direction, and a plurality of water-passing holes penetrating the stacked plate-like members in the stacking direction are simultaneously drilled using a plurality of rotary drills that move up and down to penetrate each of the plurality of water-passing holes, A method for manufacturing an assembly for rainwater storage and infiltration equipment, characterized in that adjacent plate-like members of the plurality of plate-like members are stacked in sequence so that the concave and convex portions of each plate-like member intersect on opposing surfaces, and then simultaneously welded at the contact points of the intersecting convex portions using a plurality of welding tips that move vertically and abut the contact points.

2. A method for manufacturing an assembly for rainwater storage and infiltration equipment as described in claim 1, characterized in that communicating holes are drilled on a surface perpendicular to the stacking direction of the assembly consisting of a plurality of welded plate-like members.

3. A method for manufacturing an assembly for rainwater storage and infiltration equipment as described in claim 2, characterized in that the communicating holes are drilled using a cylindrical rotary cutter having multiple blades at one end of the cylindrical portion and plate-shaped blades arranged diametrically inside the cylindrical portion.

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