JP2021025227A - Gully system - Google Patents

Abstract

To provide a gully system capable of enhancing a degree of freedom in piping.SOLUTION: The gully system 100 includes a horizontally laying pipe 4C, a joint 40 and a gully 1; the joint 40 includes an insertion end part 40C disposed at one and inserted into a horizontally laying insertion outer peripheral wall 10a and a socket part 40d which is disposed at the other end and into which the horizontally laying pipe 4C is inserted.SELECTED DRAWING: Figure 5B

Description

The present invention relates to a rainwater mass system.

Conventionally, in a gutter of a building such as a house, as shown in Patent Document 1, for example, a rainwater mass connected to a horizontal pulling pipe installed in the ground is known. As such a rainwater mass, generally, a polypropylene (PP) tame mass or a polyvinyl chloride (PVC) inflow port (receptacle) of a horizontal pulling pipe is provided at a predetermined angle in the circumferential direction. There is one.

Japanese Unexamined Patent Publication No. 2016-194214

However, the above-mentioned conventional rainwater mass has the following problems.
That is, the polypropylene rainwater mass (Tamemas) has a large overall shape due to manufacturing reasons. In the case of such a large rainwater mass, there is a problem that the rainwater mass itself is large and difficult to handle at the time of construction in a house in a narrow place, and the construction becomes difficult due to the connection with the connected pipes.

Further, in the rainwater mass made of polyvinyl chloride, the insertion port (receptacle) of the horizontal pulling pipe is provided at a position determined at an angle determined in the circumferential direction. That is, since the insertion port is not provided at a position suitable for the space and arrangement of the site, there is a risk that it may be difficult to insert the horizontal pulling pipe into the rainwater mass during construction.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a rainwater mass system capable of increasing the degree of freedom of piping.

In order to achieve the above object, the rainwater mass system according to the first invention includes a first horizontal pulling pipe, a joint, and a rainwater mass. In the rainwater mass, a first horizontal pulling pipe is connected via a joint. The joint has an insertion end portion and a socket portion. The insertion end is provided at one end and is inserted into the outer peripheral wall. The receiving portion is provided at the other end, and the first horizontal pulling pipe is inserted.

The horizontal pulling pipe can be connected to the rainwater mass by inserting a joint at any place on the outer wall of the rainwater mass and inserting the horizontal pulling pipe into the joint. In this way, the inflow / outflow angle of the horizontal pulling pipe can be freely set at the construction site. Therefore, unlike the conventional rainwater mass in which the receiving port of the horizontal pulling pipe is provided at the position where the inflow and outflow angle of the horizontal pulling pipe is determined, the inflow and outflow angle of the horizontal pulling pipe can be adjusted and the rainwater mass is received. It is possible to eliminate problems such as carrying in items with the wrong shape of the mouth, increase the degree of freedom of piping, and improve workability at the site.

Further, by providing a joint so as to arrange the receiving portion on the outside of the rainwater mass, the first horizontal pulling pipe can be easily connected to the rainwater mass.

The rainwater mass system according to the second invention is the rainwater mass system according to the first invention, and the joint has one or more curved portions on the outside of the outer peripheral wall of the rainwater mass.

In this way, by using a joint having a curved portion, it is possible to avoid surrounding buildings and to pipe in the shortest path, so that the degree of freedom of piping can be increased.

In addition, since it is not necessary to insert the joint into another horizontal pulling pipe from an acute angle direction, it is possible to avoid insufficient insertion and collision between the pipe already inserted and the inside of the rainwater mass, improving workability. It becomes possible to do.

The rainwater mass system according to the third invention is the rainwater mass system according to the second invention, and the receiving portion of the joint is partially in contact with the outer peripheral wall of the rainwater mass.

When inserting a plurality of horizontal pulling pipes into a rainwater mass, a stopper or the like may be provided inside to prevent contact with each horizontal pulling pipe, but the inside of the mass has a complicated structure.

However, in the above invention, since the receiving portion itself serves as a stopper, the horizontal pulling pipe is inserted into the receiving portion and the joint is inserted into the rainwater mass, so that the insertion end of the joint is inserted at a desired position inside the rainwater mass. The part is fixed. As a result, contact with other horizontal pulling pipes can be suppressed.

In addition, by adopting a rainwater mass system in which the receiving part of the joint is partially in contact with the outer wall of the rainwater mass, the receiving part of the joint is closer to the inside of the rainwater mass, so that it is easy to maintain (remove dust accumulated in the bent part). ) Can be improved.

The rainwater mass system according to the fourth invention is the rainwater mass system according to the second or third invention, and the angle θ formed by the central axis of the insertion end and the central axis of the first horizontal pulling pipe is It is 90 ° to 135 °.

Since the direction in which the first horizontal pulling pipe extends through the joint can be changed in this way, the degree of freedom of the pipe can be increased.

The rainwater mass system according to the fifth invention is any of the first to fourth rainwater mass systems, and further includes a second horizontal pulling pipe inserted into the outer peripheral wall of the rainwater mass. The angle formed by the central axis of the insertion end and the central axis of the second horizontal pulling pipe is 20 ° to 90 °.

In this way, the degree of freedom of the piping can be increased by changing the arrangement direction of the joint with respect to the second horizontal pulling pipe.

According to the present invention, it is possible to provide a rainwater mass system capable of increasing the degree of freedom of piping.

It is a figure which shows the schematic structure of the drainage structure arranged in the house using the rainwater mass system of 1st Embodiment of this invention. It is a perspective view of the rainwater mass of the rainwater mass system of FIG. It is a side view of a rainwater trout. It is a vertical cross-sectional view of a rainwater mass, and is a view in which an insertion port is formed in a part of a horizontal drawing outer peripheral wall. It is a perspective view of the rainwater mass system shown in FIG. It is sectional drawing of the rainwater mass system of FIG. 5A at the position of line AA shown in FIG. It is a cross-sectional view taken along line BB shown in FIG. It is a side view of the rainwater mass, and is the figure which the 1st reference line is displayed on the lateral pulling outer peripheral wall of the mass main body part. It is a side view of the rainwater mass, and is the figure which the 2nd reference line is displayed on the lateral pulling outer peripheral wall of the mass main body part. It is a figure which shows the state which forms the insertion opening by using the drilling jig in the rainwater mass. (A) and (b) are diagrams showing the arrangement state of the rainwater drainage pipe and the sewage drainage pipe. It is a half cross-sectional view of the structure of the rainwater mass of the rainwater mass system according to the second embodiment seen from the side, and is the figure which shows the state before forming the insertion opening. It is a semi-cross-sectional view of the structure of the rainwater mass of the rainwater mass system of the second embodiment seen from the side, and is the figure which shows the state after forming the insertion opening. It is a half cross-sectional view which looked at the structure of the rainwater mass by the 2nd Embodiment from the side, and is the figure which shows the state which the joint is inserted in the insertion opening. It is a perspective view which shows the structure of the rainwater mass system by 3rd Embodiment. It is a perspective view which shows the structure of the rainwater mass of the rainwater mass system of FIG. 12A. It is a semi-cross-sectional view of the rainwater mass shown in FIG. 12 as viewed from the side. It is a top view of the rainwater mass shown in FIG. It is a vertical sectional view of the rainwater mass shown in FIG. It is a side view which shows the structure of the lower member shown in FIG. FIG. 3 is a vertical cross-sectional view showing a state in which a basket for mud storage is arranged inside the rainwater mass shown in FIG. It is sectional drawing which shows the structure of the rainwater mass of the rainwater mass system of 4th Embodiment. It is sectional drawing which shows the state which the joint is inserted into the rainwater mass of the rainwater mass system of 4th Embodiment. It is a horizontal sectional view which shows the structure of the rainwater mass system by the 1st modification. It is a horizontal sectional view which shows the structure of the rainwater mass system by the 2nd modification. It is a horizontal sectional view which shows the structure of the rainwater mass system by the 3rd modification. It is a horizontal sectional view which shows the structure of the rainwater mass system by the 4th modification. It is a side view which shows the structure of the rainwater mass by the 5th modification, and the basket before being inserted into the rainwater mass. It is a horizontal sectional view which shows the structure of the rainwater mass by the 6th modification, and is the figure corresponding to FIG. 5B. It is a vertical cross-sectional view which shows the structure of the rainwater mass by the 7th modification. It is sectional drawing which shows the arrow between DDs of FIG. 24A.

Hereinafter, the rainwater mass, the construction method of the rainwater mass, and the rainwater mass system according to the embodiment of the present invention will be described in detail with reference to the drawings.

(First Embodiment)
As shown in FIG. 1, the rainwater mass system 100 according to the present embodiment is buried underground in a gutter 21 of a house (building) via a curved pipe portion 23. The rainwater mass system 100 includes a rainwater mass 1 and a horizontal pulling pipe 4 connected to the rainwater mass 1. The horizontal pulling pipe 4 is connected to the downspout 21 via a curved pipe portion 23, and is buried in the ground. The rainwater mass 1 is provided in the horizontal pulling pipe 4.

In the present embodiment, for example, as shown in FIG. 5A, the rainwater mass 1 has a horizontal pulling pipe 4A (an example of a second horizontal pulling pipe) and a horizontal pulling pipe 4B (an example of a second horizontal pulling pipe). It has been inserted. Further, a horizontal pulling pipe 4C (an example of a first horizontal pulling pipe) is connected to the rainwater mass 1 via a joint 40. Further, for example, rainwater can be made to flow into the rainwater mass 1 from the horizontal pulling pipes 4B and 4C, and the rainwater can be discharged from the horizontal pulling pipe 4A.

Specifically, as the rainwater drainage of the building of the present embodiment, the rainwater flowing into the eaves gutter 20 attached to the eaves of the roof is bent with respect to the gutter 21 provided with the drainage pipe cover 24 near the ground. It is configured to flow into the horizontal pulling pipe 4 buried in the ground through the portion 23.

Then, the horizontal pulling pipe 4 is connected to the rainwater mass 1, and is further drained from the rainwater mass 1 to a drainage pipe (not shown) by the horizontal pulling pipe 4. Further, the sewage drainage of the drainage facility (for example, the toilet 31) generated indoors is drained from the vertical pipe 25 to the sewage main 30 via a horizontal pulling pipe 26 and a confluence box (not shown).

As shown in FIGS. 2 to 4, the rainwater mass 1 has insertion ends 4a, 4b, and 40c for connecting the horizontal pulling pipes 4A, 4B, and 4C shown in FIGS. 5A, 5B, and 6 inserted inward. To be used for removing mud from the mass main body 10 having a tubular laterally drawn outer peripheral wall 10a (an example of the outer peripheral wall) on which the insertion ports 13A, 13B, and 13C can be formed, and the upper end of the mass main body 10. It has a rising pipe receiving port 11 for connecting a rising pipe 19 extending toward the ground, and a bottomed tubular mud reservoir receiving portion 12 provided at the lower end of the mass main body portion 10. The rising pipe receiving port 11 corresponds to an example of the rising pipe receiving portion. The horizontal pulling pipes 4A and 4B are directly connected to the rainwater mass 1, and the insertion end portions 4a and 4b are the end portions of the horizontal pulling pipes 4A and 4B. On the other hand, the horizontal pulling pipe 4C is indirectly connected to the rainwater mass 1 via the joint 40, and the insertion end portion 40c is the end portion of the joint 40. A receiving port 40d is provided at an end of the joint 40 opposite to the insertion end 40c, and a horizontal pulling pipe 4c is inserted into the receiving port 40d.

The rainwater mass 1 of the present embodiment also includes a rainwater infiltration mass in which a plurality of holes are formed in the mud reservoir receiving portion 12.

Examples of the material of the rainwater mass 1 include polyvinyl chloride and polypropylene. For example, in terms of cost, polypropylene can be manufactured at low cost, but as will be described later, the rising pipe 19 cannot be bonded, so that the structure is connected by a joint. On the other hand, polyvinyl chloride is used to enable such adhesion of the rising pipe 19.

Here, in the rainwater mass 1 of the present embodiment, the central axes of the mass body portion 10, the rising pipe receiving port 11, and the mud collecting receiving portion 12 are arranged on a common axis. Hereinafter, this common axis is referred to as a mass axis O, the mud reservoir receiving portion 12 side of the rainwater mass 1 along the mass axis O direction is referred to as a lower side, and the rising pipe receiving port 11 side of the rainwater mass 1 is referred to as an upper side. Further, in a plan view of the rainwater mass 1 viewed from the mass axis O direction, the direction orthogonal to the mass axis O is referred to as the radial direction, and the direction orbiting around the mass axis O is referred to as the circumferential direction.

As shown in FIG. 4, the mass main body 10 has a first continuous portion 10b extending from the laterally drawn outer peripheral wall 10a and connected to the rising pipe receiving port 11, and a mud reservoir receiving extending from the laterally drawn outer peripheral wall 10a. It has a second continuous portion 10c connected to the portion 12. The lateral pulling outer peripheral wall 10a is formed in a cylindrical shape centered on the mass axis O, has an outer diameter of 330 mm or less, and has an outer wall height of the insertion ends 4a and 4b of the horizontal pull pipes 4A and 4B and the insertion of the joint 40. It is set larger than the diameter of the end 40c. The first continuous connection portion 10b functions as a first connection portion for connecting between the horizontal pull-out outer peripheral wall 10a and the rising pipe receiving port 11, and the second continuous connection portion 10c is a horizontal pull-out outer peripheral wall 10a. It functions as a second connecting portion that connects between the and the mud reservoir receiving portion 12.

Further, as shown in FIGS. 7 and 8, a reference line 15 indicating the formation position of the insertion port 13 is displayed on the laterally drawn outer peripheral wall 10a. The first reference line 15A shown in FIG. 7 is displayed from a line extending in the circumferential direction on the outer surface of the laterally drawn outer peripheral wall 10a and a plurality of lines extending in the vertical direction (vertical direction) orthogonal to the circumferential direction. .. The second reference line 15B shown in FIG. 8 is represented by a line composed of triple concentric circles at predetermined angles (for example, 45 °) along the circumferential direction.

As shown in FIG. 4, the rising pipe receiving port 11 has an annular shape, a base end portion 11A connected to the mass main body 10 from above, and a receiving main body 11B having a diameter slightly larger than that of the base end 11A. And, the base end portion 11A and the receiving port main body 11B are arranged coaxially. Further, as shown in FIG. 4, the rising pipe receiving port 11 is formed with an opening 11C that communicates with the internal space of the rising pipe 19 when the rising pipe 19 is connected.

A rising pipe 19 is connected to the receiving port main body 11B by adhesion (when the rainwater mass 1 is made of polyvinyl chloride). The upper end of the rising pipe 19 connected to the rainwater mass 1 extends to the above-ground portion, and a protective hat (not shown) is fitted on the upper end portion thereof.

The mud reservoir receiving portion 12 has a base end portion 12A connected to the mass main body portion 10 from below, and a mud reservoir main body 12B having a diameter slightly larger than that of the base end portion 12A. As shown in FIG. 4, the mud reservoir receiving portion 12 is formed with a mud reservoir space 12C opened in the mass main body portion 10. The opening 12D to the mass body 10 of the mud storage space 12C is shown. The mud reservoir receiving portion 12 is formed to have a smaller diameter than the mass main body portion 10. The mud reservoir receiving portion 12 corresponds to an example of the mud receiving portion.

The mud reservoir receiving portion 12 is arranged on the side opposite to the rising pipe receiving port 11 of the mass main body portion 10.
The mud storage space 12C and the opening 12D are arranged so as to face the opening 11C of the rising pipe receiving port 11, and the opening 11C of the rising pipe receiving port 11 covers the mud collecting space 12C and the opening 12D in a plan view. It is provided. Further, as shown in FIG. 4, assuming that the area of the opening 11C of the rising pipe receiving port 11 (which can be said to be the area perpendicular to the mass axis O) is S1 and the area of the opening 12D of the mud storage space 12C is S2, S1 It is formed in ≧ S2. In the present embodiment, S1 and S2 are formed substantially equally, but S1> S2 may be satisfied.

Further, as shown in FIG. 4, in the radial direction of the mass axis O (which can be said to be in a plan view perpendicular to the mass axis O), the distance from the laterally drawn outer peripheral wall 10a to the opening 11C of the rising pipe receiving port 11. L1 is set to be equal to or less than the distance L2 from the laterally drawn outer peripheral wall 10a to the opening 12D of the mud storage space 12C (which can be said to be up to the edge 12E of the opening 12D). In the present embodiment, L1 = L2 is set, but L1 <L2 may be used.

Further, in the rainwater mass system 100 shown in FIGS. 4, 5A, and 5B, a plurality of lateral pulling pipes 4 are directly or indirectly connected to the lateral pulling outer peripheral wall 10a of the rainwater mass 1 via a joint 40. Is provided.

In the present embodiment, the horizontal pulling pipes 4A and 4B and the joint 40 are inserted into the rainwater mass 1. Insertions 13A, 13B, and 13C are formed on the laterally drawn outer peripheral wall 10a of the rainwater mass 1. The insertion end 4a of the horizontal pulling pipe 4A is inserted into the insertion port 13A. The insertion end 4b of the horizontal pulling pipe 4B is inserted into the insertion port 13B. The insertion end 40c of the joint 40 is inserted into the insertion port 13C.

In the rainwater mass 1 configured in this way, for example, when the outer diameter of the mass body portion 10 is 330 mm and the outer diameter of the mud reservoir receiving portion 12 is 150 mm, the nominal diameter φ100 (outer diameter 114 mm) is the first. The insertion angle θ1 between the 1 horizontal pulling pipe 4A and the 2nd horizontal pulling pipe 4B is 180 °, and a nominal diameter of φ100 (outer diameter 114 mm) is provided between the 1st horizontal pulling pipe 4A and the 2nd horizontal pulling pipe 4B. A joint 40 is provided. The first horizontal pulling pipe 4A, the second horizontal pulling pipe 4B, and the joint 40 have the same nominal diameter, but the nominal diameter is not limited to this and may be different. Further, the third horizontal pulling pipe 4C has the same nominal diameter as the first horizontal pulling pipe 4A and the second horizontal pulling pipe 4B, but may be different.

The insertion angle θ2 of the insertion end 40c of the joint 40 with respect to the first horizontal pulling pipe 4A is set to 90 °. The insertion angle θ3 of the insertion end portion 40c of the joint 40 with respect to the second horizontal pulling pipe 4B is set to 90 °.

In FIG. 5B, reference numeral C1 (C) is the central axis of the first horizontal pulling pipe 4A, and reference numeral C2 (C) is the central axis of the second horizontal pulling pipe 4B. The angle θ1 between the central axes C1 and C2 is 180 °. The first horizontal pulling pipe 4A and the second horizontal pulling pipe 4B are arranged coaxially. Further, in FIG. 5B, reference numeral C3 (C) is the central axis of the insertion end portion 40c (described later) of the joint 40, and the angle θ2 with the central axis C1 of the first horizontal pulling pipe 4A is 90 °. Further, the central axis C3 (C) has an angle θ3 with the central axis C2 of 90 °. Note that θ3 may be 20 ° or more and 90 ° or less.

The insertion end portion 4a of the first horizontal pulling pipe 4A is located at the outer peripheral edge (edge 12E) of the opening of the mud reservoir receiving portion 12 in a plan view from above. Further, the insertion end portion 4b of the second horizontal pulling pipe 4B is located at the outer peripheral edge of the opening of the mud reservoir receiving portion 12 in a plan view from above. The insertion end portion 40c of the joint 40 is located at the outer peripheral edge of the opening of the mud reservoir receiving portion 12 in a plan view from above.

The first horizontal pulling pipe 4A and the second horizontal pulling pipe 4B are straight pipes.
The joint 40 has an insertion end portion 40c, a receiving portion 40d, and a curved portion 40e. As the joint 40, for example, a single-sided elbow can be used. The insertion end portion 40c is inserted into the insertion port 13C formed in the lateral pulling outer peripheral wall 10a. The curved portion 40e is provided on the outside of the laterally drawn outer peripheral wall 10a. The curved portion 40e bends the flow path 90 degrees in a plane perpendicular to the mass axis O. The receiving port portion 40d is a receiving port for piping, and has a larger outer diameter than the insertion end portion 40c and the bent portion 40e. For example, when the inner diameter of the receiving port portion 40d is the same as the outer diameter of the insertion end portion 40c, the third horizontal pulling pipe 4C having the same outer diameter as the insertion end portion 40c can be inserted into the receiving port portion 40d. As the third horizontal pulling pipe 4C, for example, a straight pipe can be used.

The angle θ4 formed by the central axis C3 of the insertion end portion 40c of the joint 40 and the central axis C4 of the receiving portion 40d and the third horizontal pulling pipe 4C is 90 °. The third horizontal pulling pipe 4C is parallel to the second horizontal pulling pipe 4B and extends in the same direction as the second horizontal pulling pipe 4B.

The total length of the rainwater mass 1 is preferably 350 mm or less, and the total length of the mud reservoir receiving portion 12 is preferably 150 mm or more.

Next, the operation of the construction method of connecting the horizontal pulling pipe 4 to the rainwater mass 1 described above, the rainwater mass, and the construction method of the rainwater mass will be described in detail with reference to the drawings.

In the present embodiment, as shown in FIG. 1, when connecting the rainwater mass 1 to the horizontal pulling pipe 4, first, at an arbitrary position of the horizontal pulling outer peripheral wall 10a of the mass main body 10, FIG. As shown, an insertion port 13 (see FIGS. 5B and 6) having a predetermined outer diameter is formed by penetrating the laterally drawn outer peripheral wall 10a using a drilling jig 5 (drilling means). Here, as the drilling jig 5, an electric jig having a cutter 52 at the tip of the rotating shaft 51 can be adopted.

As shown in FIG. 6, the horizontal pulling pipe 4 is inserted into the insertion port 13 via the waterproof packing 14 to the inside of the mass main body 10. The same applies to the case of the joint 40. Specifically, the waterproof packing 14 is provided between the outer peripheral surface 43a of the thin end portion 43 of the horizontal pulling pipe 4 and the insertion port 13. The portion of the horizontal pulling pipe 4 outside the mass main body 10 is indicated by reference numeral 44. At this time, the horizontal pull pipe 4 is inserted into the insertion port 13 so that the insertion ends 4a and 4b of the horizontal pull pipe 4 are located radially outside the upper end opening edge 12E of the mud reservoir receiving portion 12 (FIG. 5B). reference). Further, the insertion end portion 40c of the joint 40 is also inserted into the insertion port 13 so as to be located on the outer side in the radial direction from the upper end opening edge 12E of the mud reservoir receiving portion 12.

A structure in which the horizontal pulling pipes 4A and 4B and the insertion ends 4a, 4b, and 40c of the joint 40 that are inserted in this way do not overlap the opening 12D of the mud reservoir receiving portion 12 in the mass axis O direction (in a plan view). It becomes possible to do. As a result, a basket or the like for cleaning the inside of the mud reservoir receiving portion 12 can be inserted into the mud reservoir receiving portion 12 without interfering with the inserted horizontal pulling pipe 4.

In the rainwater mass 1 configured in this way, the mass body portion 10 into which the outer diameter of the mud reservoir receiving portion 12 is inserted into the insertion end portions 4a and 4b of the horizontal pull pipe 4 and the insertion end portion 40c of the joint 40 is inserted. Since it is smaller than the outer diameter of the rainwater mass 1, the shape of the entire rainwater mass 1 can be made smaller.

That is, in the rainwater mass 1 of the present embodiment, as shown in FIG. 10A, a space S is formed below the mass main body portion 10 of the rainwater mass 1 and outside the mud reservoir receiving portion 12 in the radial direction. When the drainage pipe P1 for rainwater and the drainage pipe P2 for sewage generated from the room are arranged in the ground by different systems in a house or the like, the drainage pipe P2 for sewage is arranged close to the space S. Is possible.

Therefore, the distance L1 between the drainage pipe P1 for rainwater and the drainage pipe P2 for sewage is set to, for example, the drainage pipe P1 for rainwater in the conventional case using the bucket-shaped Tamemas 1000A as shown in FIG. The drainage pipe P2 for sewage can be made closer than the distance L2, and the pipe can be efficiently installed in a house in a narrow place.

Further, in the present embodiment, as shown in FIG. 6, a predetermined hole-drilling means (drilling jig 5 shown in FIG. 9) is used at an arbitrary position on the laterally drawn outer peripheral wall 10a of the mass main body 10. An insertion port 13 having an outer diameter can be formed, and the horizontal pulling pipe 4 and the joint 40 can be inserted and connected to the insertion port 13 to the inside of the mass main body 10 via the waterproof packing 14. In this way, the inflow / outflow angle of the horizontal pulling pipe 4 can be freely set at the construction site.

Therefore, the outflow / inflow angle of the horizontal pulling pipe 4 can be adjusted or rainwater can be adjusted like a conventional rainwater mass having a socket for the horizontal pulling pipe 4 at a position where the outflow / inflow angle of the horizontal pulling pipe 4 is determined. It is possible to eliminate problems such as carrying in items with the wrong shape of the mass receiving port, increase the degree of freedom of piping, and improve workability at the site.

When an insertion port 13 having a predetermined outer diameter is formed at an arbitrary position on the laterally drawn outer peripheral wall 10a of the mass main body 10 by using a hole-drilling means (drilling jig 5 shown in FIG. 9), the laterally drawn outer circumference is formed. By providing the wall 10a with 10 g of alignment holes (see FIGS. 12 and 13) corresponding to each hole diameter (for example, 50A, 75A, 100A), it is desirable when making a hole with the drilling jig 5 at the construction site. The hole diameter of can be formed at a desired position.

By engraving the alignment hole 10g with a hole diameter, for example, it is possible to improve the work efficiency by making it possible to know at a glance which alignment hole 10g has the desired hole diameter.

Further, the alignment holes 10g are preferably formed side by side on the same straight line at the center position of the holes made by the hole making jig 5, but may be formed by being displaced.

Moreover, in the present embodiment, the outer diameter of the mass main body 10 is formed to be larger than the outer diameter of the mud reservoir receiving portion 12, and the outer diameter of the mass main body 10 is laterally pulled and inserted into the outer peripheral wall 10a. It is possible to secure the insertion length of the insertion end portions 4a and 4b of the pipe 4 and the insertion end portion 40c of the joint 40. Therefore, the connection by inserting the horizontal pulling pipe 4 and the joint 40 can be surely performed, and the insertion ends 4a and 4b of the inserted horizontal pulling pipe 4 and the insertion end 40c of the joint 40 are in the mass axis O direction. It is possible to have a structure that does not overlap the opening of the mud reservoir receiving portion 12.

As a result, a basket or the like for cleaning the inside of the mud reservoir receiving portion 12 can be inserted into the mud reservoir receiving portion 12 without interfering with the inserted horizontal pulling pipe 4.

Further, in the present embodiment, the outer diameter of the mud reservoir receiving portion 12 can be configured as a member having a small cross section of 180 mm or less, and the rainwater mass 1 can be reliably miniaturized.

Further, the laterally drawn outer peripheral wall 10a is formed in a cylindrical shape and the outer diameter is set to 330 mm or less. Therefore, while suppressing the outer diameter of the mass main body 10, for example, the nominal diameter φ100 (outer diameter) used as a standard is used. The shape is such that a plurality of horizontal pulling pipes 4 and joints 40 (114 mm) can be inserted into the horizontal pulling outer peripheral wall 10a.

Furthermore, in the present embodiment, as shown in FIGS. 7 and 8, the insertion port 13 (FIG. 7) is provided by using the opening means at a position aligned with the reference line 15 (15A, 15B) of the laterally drawn outer peripheral wall 10a. (Refer to 5B) can be formed, positioning work for opening a hole becomes unnecessary, and the insertion port 13 can be formed with high accuracy.

As described above, in the present embodiment, the size can be reduced and the inflow / outflow angle of the horizontal pulling pipe 4 can be freely set at the construction site, so that the degree of freedom of piping can be increased and the site can be increased. It is possible to improve the workability in.

(Second Embodiment)
FIG. 11A is a semi-cross-sectional view of the rainwater mass 1A of the rainwater mass system 100A of the second embodiment. FIG. 11B is a semi-cross-sectional view showing a state in which the insertion port 13 is formed in FIG. 11A. FIG. 11C is a cross-sectional view showing a state in which the joint 40 is inserted into the rainwater mass 1A. FIG. 11C is a diagram showing a rainwater mass system 100A.

The rainwater mass 1A used in the rainwater mass system 100A of the second embodiment shown in FIGS. 11A to 11C is a base of the rising pipe receiving port 11 in the rainwater mass 1 shown in FIG. 2 according to the first embodiment described above. The structure is such that the end portion 11A and the base end portion 12A of the mud reservoir receiving portion 12 are omitted, and the two members (upper member 10A) are further divided into upper and lower parts along the mass axis O at the position of the mass main body portion 10. , Lower member 10B). That is, the rainwater mass 1A has a structure in which two members are formed by injection molding and joined to each other with an adhesive. In addition to the adhesive, these two members can also maintain their joint by fitting each member.

Unlike the rainwater mass 1 of the first embodiment, the rainwater mass 1A used in the rainwater mass system 100A of the second embodiment has a predetermined amount or more when a joint or a horizontal pulling pipe is inserted into the rainwater mass 1A. There is a stopper that restricts insertion.

As shown in FIG. 11A, the upper member 10A is integrally injection-molded with the laterally drawn outer peripheral wall 10a of the mass main body 10, the upper first continuous portion 10b, and the receiving main body 11B of the rising pipe receiving port 11. It is a member. The lower member 10B is a member in which the second continuous portion 10c on the lower side of the mass main body 10 and the mud reservoir main body 12B of the mud reservoir receiving portion 12 are integrally injection-molded. In the present embodiment, the first continuous portion 10b of the upper member 10A and the second continuous portion 10c of the lower member 10B form a plane orthogonal to the mass axis O direction, but the first continuous portion It is also possible to incline the 10b or the second continuous portion 10c. By providing the second continuous portion 10c with an inclination, mud and water can easily flow into the mud reservoir receiving portion 12.

The second continuous portion 10c of the lower member 10B is formed with a ridge portion 10e extending over the entire outer peripheral edge thereof and for adhering the lower end portion 10d of the upper member 10A. The lower end portion 10d of the upper member 10A is arranged in a fitted state on the inner peripheral side of the ridge portion 10e, and the ridge portion 10e and the lower end portion 10d are adhered to each other by an adhesive. The rainwater mass 1A shown in FIG. 11B is formed by punching and penetrating a predetermined portion of the laterally drawn outer peripheral wall 10a using a drilling jig 5 (see FIG. 9) to form an insertion port 13 having a predetermined outer diameter. There is.

The receiving port main body 11B is formed with a stopper 10f extending in a direction intersecting with the first continuous portion 10b. The stopper 10f corresponds to an example of the regulation unit. The stopper 10f is formed so as to project from the connection portion between the first continuous portion 10b and the receiving port main body 11B toward the lower member 10B. The stopper 10f is formed in an annular shape, and has a contact surface 10j on the outer peripheral side with reference to the mass axis O. As shown in FIG. 11C, when the joint 40 is inserted, the insertion end portion 40c comes into contact with the contact surface 10j, so that the joint 40 can be restricted from being inserted any more.

The distance W1 from the laterally drawn outer peripheral wall 10a to the contact surface 10j is equal to or less than the distance W2 from the laterally drawn outer peripheral wall 10a to the opening 12D of the mud storage space 12C.
In the present embodiment, W1 <W2, and the contact surface 10j is formed outside the edge 12E of the opening 12D to the mass main body 10 of the mud storage space 12C, but W1 = W2. You may.

The same applies when the horizontal pulling pipe 4 is inserted instead of the joint 40, and the insertion of the horizontal pulling pipe 4 is restricted by the insertion ends 4a and 4b contacting the contact surface 10j of the stopper 10f. Can be done.

By forming the stopper 10f in this way, when inserting the horizontal pulling pipe 4 and the joint 40, the insertion amount can be controlled, and the horizontal pulling pipe 4 is located at the position of the outer peripheral edge of the opening 12D of the mud reservoir receiving portion 12. The insertion end portions 4a and 4b of the joint 40 and the insertion end portion 40c of the joint 40 can be prevented from entering. As a result, when the mud accumulated in the mud reservoir receiving portion 12 is taken out, the basket (described later) housed in the mud reservoir space 12C inside the mud reservoir receiving portion 12 can be easily taken out.

Further, also in the present embodiment, the mud reservoir receiving portion 12 is arranged on the opposite side of the mass main body portion 10 from the rising pipe receiving port 11. The mud storage space 12C and the opening 12D are arranged so as to face the opening 11C of the rising pipe receiving port 11, and the opening 11C of the rising pipe receiving port 11 covers the mud collecting space 12C and the opening 12D in a plan view. It is provided. Further, as shown in FIG. 15A, assuming that the area of the opening 11C of the rising pipe receiving port 11 (which can be said to be the area perpendicular to the mass axis O) is S1 and the area of the opening 12D of the mud storage space 12C is S2, S1 It is formed in ≧ S2. The cross-sectional area of the mud storage space 12C at an arbitrary position perpendicular to the mass axis O is equal to or less than the area of the opening 12D.

Further, as shown in FIG. 11B, the distance from the laterally drawn outer peripheral wall 10a to the opening 11C of the rising pipe receiving port 11 in the radial direction of the mass axis O (which can be said to be in a plan view perpendicular to the mass axis O). L1 is set to be equal to or less than the distance L2 from the laterally drawn outer peripheral wall 10a to the opening 12D of the mud storage space 12C (which can be said to be up to the edge 12E of the opening 12D). In the present embodiment, L1 = L2 is set, but L1 <L2 may be used.

In the second embodiment, as described above, the rising pipe receiving port 11 and the mud collecting receiving part 12 omit the base end portions 11A and 12A (see FIG. 2), respectively, so that the overall shape of the rainwater mass 1A is formed. Can be made smaller. Further, since the upper member 10A and the lower member 10B are integrally bonded to each other, each member can be manufactured not only by injection molding but also by using a mold.

(Third Embodiment)
As shown in FIGS. 12 to 14, the rainwater mass 1B of the rainwater mass system 100B according to the third embodiment is the rainwater mass 1A according to the second embodiment described above (see FIGS. 11 (a) and 11 (b)). ) Is a more specific configuration.

FIG. 12A is a perspective view showing the rainwater mass system 100B of the third embodiment, and FIG. 12B is a perspective view showing the rainwater mass 1B of the rainwater mass system 100B.

The rainwater mass system 100B of the third embodiment includes a rainwater mass 1B, horizontal pulling pipes 4A and 4B inserted into the rainwater mass 1B, and a joint 40. The horizontal pull pipes 4A and 4B and the joint 40 are inserted into the rainwater mass 1B in the same arrangement as in FIGS. 5A and 5B of the first embodiment. A third horizontal pulling pipe 4C is inserted into the receiving portion 40d of the joint 40.

The rainwater mass 1B is composed of two members (upper member 6A, lower member 6B) divided into upper and lower parts, and can be formed by injection molding or the like.

The rainwater mass 1B has a rising pipe receiving port 61, a mass main body portion 69, and a mud receiving portion 90. The rising pipe receiving port 61 corresponds to an example of the rising pipe receiving portion.

The upper member 6A includes a rising pipe receiving port 61 and a mass main body portion 69.
The rising pipe receiving port 61 has an annular shape, and the rising pipe 19 (see FIG. 14) is connected to the upper end thereof. As shown in FIG. 13A, the rising pipe receiving port 61 is formed with an opening 61d that communicates with the internal space of the rising pipe 19 when the rising pipe 19 is connected.

The mass main body portion 69 has a laterally drawn outer peripheral wall 60, an upper continuous portion 62, and a lower continuous portion 63. The lateral pulling outer peripheral wall 60 has a tubular shape, and has an insertion port 60a (see FIG. 13A) into which the insertion ends 4a and 4b of the horizontal pulling pipe 4 and the insertion end 40c of the joint 40 are inserted inward as shown in FIG. 5B. It can be formed. The upper continuous portion 62 is connected with a rising pipe receiving port 61 and a laterally drawn outer peripheral wall 60. The lower continuous portion 63 connects the laterally drawn outer peripheral wall 60 and the lower member 6B in series.

The rising pipe receiving port 61 is formed of a tubular body having a diameter smaller than that of the laterally drawn outer peripheral wall 60. The upper continuous portion 62 is a ring-shaped flange extending along the circumferential direction by connecting the intermediate portion of the rising pipe receiving port 61 in the vertical direction and the upper end of the laterally drawn outer peripheral wall 60 in series.

A plurality of reinforcing ribs 64 protruding vertically are arranged on the upper continuous portion 62 at intervals in the circumferential direction. The upper reinforcing portion 64A located above the upper continuous portion 62 of the reinforcing ribs 64 is connected to the upper surface 62a of the upper continuous portion 62 and the outer peripheral surface 61a of the rising pipe receiving port 61. On the other hand, the lower reinforcing portion 64B located below the upper continuous portion 62 includes the lower surface 62b of the upper continuous portion 62, the outer peripheral surface 61a of the rising pipe receiving port 61, and the inner peripheral surface 60c of the laterally drawn outer peripheral wall 60. It is connected to the.

When combining the two members, the molded upper member 6A and the lower member 6B, the rainwater mass 1B is inserted by applying a load to the lower member 6B from the axis O direction of the rainwater mass 1B to insert the upper member 6A. It is formed. At this time, since the reinforcing rib 64 is provided on the upper continuous portion 62, the upper continuous portion 62 is deformed due to the load applied to the laterally pulled outer peripheral wall 60 of the upper member 6A and the upper continuous portion 62. It can be prevented and the strength of the rainwater mass 1B can be improved against stress.

The reinforcing rib 64 may be formed in a place that does not interfere with the design, and as in the third embodiment, only the upper reinforcing portion 64A is formed at a position outside the rainwater mass 1B. The lower reinforcing portion 64B can be formed at a position inside the rainwater mass 1B (see FIG. 13A).

In the upper member 6A, the position of the insertion lower end 61b of the rising pipe 19 at the rising pipe receiving port 61 is located below the position of the outer peripheral upper edge portion 60b of the laterally pulled outer peripheral wall 60 of the upper member 6A. As a result, the rising pipe 19 can be deeply inserted inside the rainwater mass 1B, and the rainwater mass 1B can be made compact.

The position of the insertion lower end 61b into which the rising pipe 19 is inserted is a position below the outer peripheral upper edge portion 60b as described above, and the horizontal pulling pipe inserted into the insertion port 60a of the lateral pulling outer peripheral wall 60. The position may be higher than 4 (see FIG. 5B), and the height can be appropriately adjusted and determined at the time of construction.

The lower member 6B is detachably connected to the lower continuous portion 63 of the upper member 10A, and corresponds to the above-mentioned tubular mud receiving portion 90. The lower member 6B is formed to have a smaller diameter than the upper member 6A. The lower member 6B (mud receiving portion 90) has a tubular mud collecting receiving portion 65 having a bottom 65b, and a mounting portion 66 protruding outward in the radial direction from the upper portion of the mud collecting receiving portion 65. (See FIG. 15). As shown in FIG. 13A, the mud reservoir receiving portion 65 is formed with a mud reservoir space 65c opened in the mass main body portion 69. An opening 65d to the mass body 69 of the mud storage space 65c is shown. The mounting portion 66 is connected to the lower continuous portion 63 of the upper member 6A in a fitted state, and a plurality of reinforcing ribs 67 are provided at intervals in the circumferential direction.

The upper continuous portion 62 corresponds to an example of a first connecting portion that connects the laterally drawn outer peripheral wall 60 and the rising pipe receiving port 61.

The mounting portion 66 and the lower continuous portion 63 correspond to an example of a second connecting portion that connects the laterally drawn outer peripheral wall 60 and the mud reservoir receiving portion 65.

The mud reservoir receiving portion 65 is arranged on the side opposite to the rising pipe receiving port 61 of the mass main body portion 69. The mud storage space 65c and the opening 65d are arranged so as to face the opening 61d of the rising pipe receiving port 61, and the opening 61d of the rising pipe receiving port 61 covers the mud collecting space 65c and the opening 65d in a plan view. It is provided. Further, as shown in FIG. 13A, assuming that the area of the opening 61d of the rising pipe receiving port 61 (which can be said to be the area perpendicular to the mass axis O) is S1 and the area of the opening 65d of the mud storage space 65c is S2, S1 It is formed in ≧ S2. The cross-sectional area of the mud storage space 65c at an arbitrary position perpendicular to the mass axis O is equal to or less than the area of the opening 65d.

In the plan view of FIG. 13B, S2 shows the area inside the edge 65e of the opening 65d, and is indicated by a diagonal line from the upper left to the lower right. Further, S1 indicates an area inside the rising pipe receiving port 61, and is indicated by a diagonal line from the upper left to the lower right and a diagonal line from the upper right to the lower left around the area.

Further, as shown in FIG. 14, in the radial direction of the mass axis O (which can be said to be in a plan view perpendicular to the mass axis O), the opening 61d (of the opening) of the rising pipe receiving port 61 from the laterally drawn outer peripheral wall 60. The interval L1 to the edge 61e) is set to be equal to or less than the interval L2 from the laterally drawn outer peripheral wall 60 to the opening 65d of the mud storage space 65c (which can also be said to be the edge 65e of the opening 65d). In the present embodiment, L1 <L2 is set, but L1 = L2 may be used.

As shown in FIG. 13A, the stopper 68 is formed so as to project from the end of the rising pipe receiving port 61 on the mud collecting receiving portion 65 side toward the mud collecting receiving portion 65. The stopper 68 corresponds to an example of the regulation unit. The stopper 68 is formed in an annular shape, and has a contact surface 68a on the outer peripheral side with reference to the mass axis O.

The distance W1 from the laterally drawn outer peripheral wall 60 to the contact surface 68a is equal to or less than the distance W2 from the laterally drawn outer peripheral wall 60 to the opening 65d of the mud storage space 65c (which can be said to be the edge 65e of the opening 65d). When the horizontal pulling pipe 4 and the joint 40 are inserted, the ends 4a, 4b, and 40c come into contact with the contact surface 68a, so that the horizontal pulling pipe 4 and the joint 40 can be restricted from being further inserted. .. In the present embodiment, W1 <W2, and the contact surface 68a is formed outside the edge 65e of the opening 65d of the mud storage space 65c, but W1 = W2 may be used.

Further, in the present embodiment, as shown in FIG. 16, a rainwater mass 1B is used by using a mud reservoir basket 16 provided inside the mass main body 69 so as to be inserted and removed from the rising pipe receiving port 61 of the upper member 6A. It is also possible to contain the mud that collects inside. The basket 16 is set to a size that can be accommodated in the mud reservoir 65 of the lower member 6B and does not interfere with the horizontal pulling pipe 4 and the joint 40 that are inserted into the upper member 6A when passing through the upper member 6A. Has been done. The basket 16 is provided with a detachable handle 161 used for taking out the basket 16. When removing the mud accumulated inside the basket 16, the mud can be efficiently removed by holding the handle 161 and taking out only the basket 16. Then, after removing the mud in the basket 16, the basket 16 can be housed in the mud reservoir 12 again.

For the basket 16, for example, polyolefins such as polyethylene and polypropylene can be used. In this case, since the hardness is softer than that of the mud reservoir receiving portion 65 made of vinyl chloride, the basket 16 is inserted into the mud reservoir receiving portion 65 by making the size suitable for the size of the mud reservoir receiving portion 65. Later, the buoyancy of water can prevent the basket 16 from floating.

Further, the basket 16 may be provided with a receiving portion (not shown) for detachably locking a rod-shaped member such as a thin tube on the upper surface of the bottom portion. In this case, when the basket 16 is taken out from the mud reservoir receiving portion 65, the basket 16 can be taken out from the rainwater mass 1B by connecting the thin pipe to the receiving portion and then pulling up the thin pipe, which is a work required for cleaning. Can be easily performed. The length of the thin tube can be adjusted as appropriate during construction, and the basket 16 is suppressed by the thin tube by covering the thin tube with a lid, so that the basket 16 can be prevented from floating due to water.

(Fourth Embodiment)
FIG. 17A is a diagram showing a rainwater mass 1C used in the rainwater mass system 100C of the fourth embodiment. FIG. 17B is a cross-sectional view showing a state in which the joint 40 is inserted into the rainwater mass 1C.

The rainwater mass 1C has a mass main body portion 71, a rising pipe receiving portion 85, and a mud receiving portion 86.

A rising pipe 19 is attached to the rising pipe receiving portion 85. The rising pipe receiving portion 85 is connected to the mass main body portion 71. The mud receiving portion 86 is connected to the mass main body portion 71 and is arranged so as to face the rising pipe receiving portion 85.

(Mass body 71)
The mass main body 71 has a substantially tubular shape, and the rising pipe receiving port 72 and the mud collecting receiving portion 73 are connected to each other. The rising pipe receiving port 72 has an annular shape, is connected to the mass main body 10, and is connected to the rising pipe 19 (see FIG. 17A) extending toward the ground. The mud reservoir receiving portion 73 has a tubular shape having a bottom 73a and is connected to the mass main body portion 71.

The mass main body portion 71 has a laterally drawn outer peripheral wall 71a, a first continuous connection portion 71b, and a second continuous connection portion 71c.

The lateral pulling outer peripheral wall 71a has a tubular shape, and an insertion port 13 for connecting the horizontal pulling pipe 4 or the joint 40 (see FIG. 17B) can be formed. The first continuous portion 71b has a tubular shape, is provided on the rising pipe receiving port 72 side (upper side in the drawing) of the laterally drawn outer peripheral wall 71a, and is connected to the rising pipe receiving port 72. The second continuous portion 71c has a tubular shape, is provided on the mud reservoir receiving portion 73 side of the laterally drawn outer peripheral wall 71a, and is connected to the mud reservoir receiving portion 73.

(Rising pipe receiving part 85)
The rising pipe receiving portion 85 has a rising pipe receiving port 72 and a mounting portion 76.

The rising pipe receiving port 72 is an annular member, and the rising pipe 19 is inserted into the rising pipe receiving port 72. The rising pipe receiving port 72 is formed with an opening 72d that communicates with the internal space of the rising pipe 19 when the rising pipe 19 is connected. Further, an insertion lower end 72c to which the rising pipe 19 abuts is formed on the inner peripheral surface of the rising pipe receiving port 72. The insertion lower end 72c is a stepped surface formed perpendicular to the mass axis O.

The mounting portion 76 has an annular shape and extends outward from the rising pipe receiving port 72. At the outer peripheral end of the mounting portion 76, an end portion 76d bent toward the mud reservoir receiving portion 73 is provided. The first continuous portion 71b is inserted inside the end portion 76d, and bonding is performed.

(Mud receiving part 86)
The mud receiving portion 86 has a mud collecting receiving portion 73 and a mounting portion 77.

The mud reservoir receiving portion 73 is tubular and has a bottom 73a. The mud reservoir 73c is formed with a mud reservoir space 73c opened in the mass main body 71. The opening 73d of the mud storage space 73c to the mass body 70 is shown. The mounting portion 77 has an annular shape and extends outward from the upper portion of the mud reservoir receiving portion 73. At the outer peripheral end of the mounting portion 77, an end portion 77d bent toward the bottom 73a side is provided. The end portion 77d comes into contact with the second continuous portion 71c from the inside, and adhesion is performed between them.

The mounting portion 76 and the first continuous portion 71b correspond to an example of a first connecting portion that connects the laterally drawn outer peripheral wall 71a and the rising pipe receiving port 72.

The mounting portion 77 and the second continuous portion 71c correspond to an example of a second connecting portion that connects the laterally drawn outer peripheral wall 71a and the mud reservoir receiving portion 73.

The stopper 74 is formed so as to project from the end of the rising pipe receiving port 72 on the mud collecting receiving portion 73 side toward the mud collecting receiving portion 65. The stopper 74 is formed in an annular shape, and has a contact surface 74a on the outer peripheral side with reference to the mass axis O.

The distance W1 from the laterally drawn outer peripheral wall 71a to the contact surface 74a is equal to or less than the distance W2 from the laterally drawn outer peripheral wall 71a to the opening 73d of the mud storage space 73c (which can also be said to be the edge 73e of the opening 73d). When the horizontal pulling pipe 4 and the joint 40 are inserted, the ends 4a, 4b, and 40c come into contact with the contact surface 74a, so that the horizontal pulling pipe 4 can be restricted from being inserted any more. In the present embodiment, W1 <W2, and the contact surface 74a is formed outside the edge 73e of the opening 73d of the mud reservoir receiving portion 73, but W1 = W2 may be used.

The mud reservoir outer peripheral wall 75 has a tubular shape and is provided on the side opposite to the laterally drawn outer peripheral wall 71a of the second continuous portion 71c. The mud reservoir outer peripheral wall 75 is around the mud reservoir receiving portion 73. Covering. The lower end of the mud reservoir outer peripheral wall 75 substantially coincides with the lower end of the mud reservoir receiving portion 73.

The mud reservoir receiving portion 73 is arranged on the side opposite to the rising pipe receiving port 72 of the mass main body portion 71. The mud reservoir space 73c and the opening 73d are arranged so as to face the opening 72d of the rising pipe receiving port 72, and the opening 72d of the rising pipe receiving port 72 covers the mud collecting space 73c and the opening 73d in a plan view. It is provided. Further, as shown in FIG. 17A, assuming that the area of the opening 72d of the rising pipe receiving port 72 (which can be said to be the area perpendicular to the mass axis O) is S1 and the area of the opening 73d of the mud reservoir space 73c is S2, S1 It is formed in ≧ S2. The cross-sectional area of the mud reservoir space 73c at an arbitrary position perpendicular to the mass axis O is equal to or less than the area of the opening 73d.

Further, as shown in the figure, in the radial direction of the mass axis O (which can be said to be in a plan view perpendicular to the mass axis O), the opening 72d (opening 72d) of the rising pipe receiving port 72 from the laterally drawn outer peripheral wall 71a. The distance L1 to the edge 72e) is set to be equal to or less than the distance L2 from the laterally drawn outer peripheral wall 71a to the opening 73d of the mud storage space 73c (which can also be said to be the edge 73e of the opening 73d). In the present embodiment, L1 <L2 is set, but L1 = L2 may be used.

The rainwater mass 1C having such a configuration is formed of, for example, three members (first member 81, second member 82, and third member 83) made of polyvinyl chloride, and is formed by injection molding or the like. be able to.

The first member 81 includes a mass main body 71 and a mud reservoir outer peripheral wall 75. As the first member 81, a pipe made of vinyl chloride may be used.

The second member 82 includes a rising pipe receiving port 72 and a mounting portion 76. The third member 83 includes a mud reservoir receiving portion 73 and a mounting portion 77.

The rainwater mass 1C can be formed by adhering these three members between the mounting portion 72b and the first continuous portion 71b and between the mounting portion 73b and the second continuous portion 71c.

It is not limited to polyvinyl chloride, and three members may be formed of an olefin-based material such as polypropylene. Further, the rainwater mass 1C of the fourth embodiment is not limited to three members, and may be formed of two or less or four or more members. Further, the configuration including the three members does not have to be limited to the configuration of the present embodiment.

(Other embodiments)
Although the embodiment of the rainwater mass and the method of constructing the rainwater mass according to the present invention has been described above, the present invention is not limited to the above embodiment and can be appropriately changed as long as the purpose is not deviated. is there.

A modification of the present embodiment will be described below.
(A)
In the first embodiment, as shown in FIG. 5B, the angle by the curved portion 40e is θ4 = 90 °, but the angle is not limited to this and may be changed as appropriate. For example, as shown in the rainwater mass system 100D according to the first modification of FIG. 18, a joint 40'having a curved portion 40e at θ4 = 125 ° may be used. In this case, the angle formed by C4 and C2 is 45 °.

The joint 40'may be used in the rainwater mass system 100D of the third embodiment. Further, θ4 may be 90 ° or more and 135 ° or less.

(B)
Further, in the first embodiment, as shown in FIG. 5B, the receiving portion 40d of the joint 40 is not in contact with the rainwater mass 1, but may be in contact with it. FIG. 19 is a diagram showing a rainwater mass system 100E according to a second modification having a joint 40 ″ in which the receiving portion 40d is in contact with the laterally drawn outer peripheral wall 10a of the rainwater mass 1. The contact point of the receiving port portion 40d with the laterally drawn outer peripheral wall 10a is shown as P.

With such a configuration, the curved portion 40e can be arranged closer to the mass main body portion 10. When cleaning the inside of the rainwater mass system, for example, a hand is inserted from the rising pipe receiving port 11 to perform cleaning. Further, since dust and mud tend to collect in the curved portion, it is difficult to clean the curved portion if the curved portion is arranged away from the rainwater mass. However, as shown in FIG. 19, the curved portion 40e is located near the rainwater mass 1. By arranging it in, it becomes easy to clean the curved portion 40e. Note that θ4 is set to 125 ° as in FIG. 18, but is not limited to this, and may be 90 ° or more and 135 ° or less.

By using the joint 40 ″ of the structure, the receiving port portion 40d functions as a stopper when the receiving port portion 40d is inserted into the mass main body portion 10 without providing a stopper inside the rainwater mass 1 and adjusting the insertion of the horizontal pulling pipe. Therefore, further insertion can be suppressed and contact with other lateral pulling tubes can be avoided. Further, by adjusting the length of the joint 40 ″ in advance, the insertion end 40c of the joint 40 ″ does not overlap the opening 12D of the mud reservoir receiving portion 12 in the mass axis O direction (in a plan view). It becomes possible to.

The position of the receiving portion 40d in the joint 40 ″ can be adjusted in consideration of the diameter of the mass main body portion 10 and the insertion amount of the horizontal pulling pipe.

(C)
In the first embodiment, the joint 40 having the curved portion 40e is used, but the joint without the curved portion may be inserted into the rainwater mass 1.

FIG. 20 is a plan sectional view showing a rainwater mass system 100F according to a third modification in which a joint 41 having no curved portion is provided. The joint 41 shown in FIG. 20 is not bent as compared with the joint 40 and is formed in a straight line. The third horizontal pulling pipe 4C is connected to the rainwater mass 1 via the joint 41.

The joint 41 shown in FIG. 20 has an insertion end portion 41c, a receiving portion 41d, and a straight portion 41e. As the joint 41, for example, a single receiving joint can be used.

The insertion end portion 41c is inserted into the insertion port 13C formed in the lateral pulling outer peripheral wall 10a. The receiving port portion 41d is a receiving port of the pipe and is located outside the rainwater mass 1. The straight line portion 41e is formed so as to connect the insertion end portion 41c and the receiving port portion 41d.

The receiving port portion 41d is formed to have a larger outer diameter than the insertion end portion 41c. For example, when the inner diameter of the receiving port portion 41d is the same as the outer diameter of the insertion end portion 41c, the third horizontal pulling pipe 4C having the same outer diameter as the insertion end portion 41c can be inserted into the receiving port portion 41d. As the third horizontal pulling pipe 4C, for example, a straight pipe can be used.

In FIG. 20, reference numeral C3 (C) is the central axis of the insertion end portion 41c of the joint 41, and the angle θ2 between the central axis C3 (C) and the central axis C1 of the first horizontal pulling pipe 4A is 90 °. .. Further, the central axis C3 (C) has an angle θ3 with the central axis C2 of 90 °. Note that θ3 may be 20 ° or more and 90 ° or less.

(D)
Further, in the rainwater mass system 100F shown in FIG. 20, the receiving portion 41d of the joint 41 is not in contact with the rainwater mass 1, but may be in contact with it. FIG. 21 is a diagram showing a rainwater mass system 100G according to a fourth modification having a joint 41'in which the receiving portion 40d is in contact with the laterally drawn outer peripheral wall 10a of the rainwater mass 1. The contact point of the receiving port portion 40d with the laterally drawn outer peripheral wall 10a is shown as P.

By using the joint 41'with such a configuration, even if a stopper is provided inside the rainwater mass 1 and the insertion of the horizontal pulling pipe is not adjusted, the receiving portion 41d can be used as a stopper when inserting the mass body portion 10. Since it functions, further insertion can be suppressed and contact with other lateral pulling tubes can be avoided. Further, by adjusting the length of the joint 41'in advance, the insertion end 40c of the joint 41'is configured so as not to overlap the opening 12D of the mud reservoir receiving portion 12 (in a plan view) in the mass axis O direction. It becomes possible.

(E)
In the rainwater mass systems 100, 100A to 100G, only one joint 40, 40', 40', 41, 41'is inserted into the rainwater mass 1, and two horizontal pipes are inserted. It does not have to be limited to this. For example, the horizontal pulling pipe may not be directly inserted, and a plurality of joints may be inserted into the rainwater mass 1.

Further, a joint provided with a curved portion and a joint not provided with a curved portion may be mixed.
Further, in the rainwater mass systems 100, 100A to 100G, three horizontal pulling pipes 4 are connected to the rainwater mass 1, but two or less may be connected, and four or more are connected to the rainwater mass 1. You may.

(F)
In the first embodiment, the horizontal pulling pipes and joints are inserted into the rainwater mass systems 100, 100A to 100G at 90 degree intervals, but if the horizontal pulling pipes do not come into contact with each other inside the rainwater mass, the horizontal pulling pipes and joints are inserted at 90 degree intervals. It is not limited to, and may be inserted at intervals of 45 degrees, for example.

Further, the joints 40', 40', 41, 41'described in the rainwater mass systems 100D to 100G may be applied to the rainwater mass systems 100A to 100C of the second to fourth embodiments.

(G)
The rainwater mass 1A of the second embodiment is provided with the stopper 10f, but the stopper 10f may not be provided. Further, even if the rainwater mass 1A is provided with the stopper 10f, the receiving portion 40d of the joint 40 ″ or the receiving portion 41d of the joint 41 ″ may be in contact with the laterally drawn outer peripheral wall 10a of the rainwater mass 1A.

The rainwater mass 1B of the third embodiment is provided with a stopper 68, but the stopper 68 may not be provided. Further, even if the rainwater mass 1B is provided with the stopper 68, the receiving portion 40d of the joint 40 ″ or the receiving portion 41d of the joint 41 ″ may be in contact with the laterally drawn outer peripheral wall 60 of the rainwater mass 1B.

The rainwater mass 1C of the fourth embodiment is provided with the stopper 74, but the stopper 74 may not be provided. Further, even if the rainwater mass 1C is provided with the stopper 74, the receiving portion 40d of the joint 40 ″ or the receiving portion 41d of the joint 41 ″ may be in contact with the laterally drawn outer peripheral wall 71a of the rainwater mass 1B.

(H)
Further, rainwater infiltration masses may be used as rainwater masses 1, 1A to 1C. The rainwater mass 1D according to the fifth modification shown in FIG. 22 is provided with a large number of small holes 12a, 12a, ... On the peripheral surface of the mud reservoir main body 12B on the lower end 1b side of the mud reservoir receiving portion 12. From these a large number of small holes 12a, mud can flow out into the ground outside the rainwater mass 1D together with rainwater. Further, a basket 17 with a handle 18 for avoiding dust is installed in the mud reservoir 12 of the rainwater mass 1D. In this basket 17, a plurality of large holes 17c are formed in the upper portion of the peripheral surface 17a, a plurality of small holes 17d are formed in the lower portion, a drainage hole 17e is formed in the lower end portion, and a rainwater mass 1D is formed. It is possible to prevent clogging of the small hole 12a formed in the lower part of the hole.

(I)
Further, in the above-described embodiment, the mass body portion 10 is formed in a circular shape in a plan view viewed from above, but the mass body portion 10 is not limited to such a circular cross section. For example, the rainwater mass 1E according to the sixth modification shown in FIG. 23 may be formed in a semicircular cross section having a linear portion 10h partially on the mass main body portion 10. In this case, since the length dimension of the rainwater mass 1E in the left-right direction in FIG. 23 can be reduced, the space efficiency at the time of installation can be improved. For example, by arranging the straight portion 10h of the rainwater mass 1E closer to the building side, the distance between the drainage pipe for rainwater and the building can be reduced, and the piping can be efficiently installed in a house in a narrow space. Can be done. Although only the horizontal pulling pipe 4 is shown in FIG. 23, the joint 40 may be inserted in place of the horizontal pulling pipe 4 or together with the horizontal pulling pipe 4.

(J)
Further, in the present embodiment, the reference lines 15A and 15B that serve as the reference for the position of the insertion port 13 are provided on the laterally drawn outer peripheral wall 10a of the mass main body 10, but the reference lines 15A and 15B are omitted. It is also possible, and it is also possible to adopt a reference line with another display.

(K)
Further, in the rainwater masses 1, 1A to 1E of the above-described embodiment, the insertion ports 13 and 60a are formed at the site, but only one insertion port 13 may be formed in advance. For example, even if the rainwater mass is a rainwater infiltration mass, it is necessary to connect at least one pipe to the laterally drawn outer peripheral walls 10a, 60, 71a. Therefore, by providing the insertion ports 13 and 60a into which the pipe can be inserted in advance at one place, the work in the field can be reduced.

Further, a receiving port such as a rising pipe receiving port may be provided from the lateral pulling outer peripheral walls 10a, 60, 71a around the insertion ports 13 and 60a.

(L)
FIG. 24A is a vertical cross-sectional view showing the rainwater mass 1F according to the seventh modification. FIG. 24B is a cross-sectional view taken along the line DD'of FIG. 22A. The rainwater mass 1F has a mass main body portion 10, a rising pipe receiving port 11, and a mud reservoir receiving portion 12'. The rainwater mass 1F has a different configuration from the rainwater mass 1 in the mud reservoir receiving portion 12'. The mud reservoir receiving portion 12'on the rainwater mass 1F has a tubular shape having a bottom 121 and has ribs 122 formed inside. As shown in FIG. 24B, the rib 122 is formed from the inner side surface 123 of the mud reservoir receiving portion 12 ′ toward the mass axis O. The ribs 122 are provided at 90 degree intervals in a plan view. The baskets 16 and 17 described above are arranged in the space inside the rib 122 of the mud reservoir receiving portion 12'.

In the case of the mud reservoir receiving portion 12'with such a configuration, the mud reservoir space 12C'is a space inside the rib 122 of the mud reservoir receiving portion 12', and the opening 12D'of the mud reservoir space 12C' is also the rib 122. It will be inside. That is, the area S2 of the opening 12D'inside the rib 122 is formed to be equal to or less than the area S1 of the opening 11C of the rising pipe receiving port 11.

When the rib 122 is formed as in the rainwater mass 1F of the seventh modification, the space in which the basket inside the rib 122 is arranged is defined as the mud reservoir space, not the entire mud reservoir receiving portion 12'. To.

(M)
The shape, size, material, and the like of the rainwater mass 1, 1A to 1F mass main body and the mud reservoir 12 are not limited to the above-described embodiment, and are set within an appropriate range. be able to. For example, in the present embodiment, the shape of the mass body portion and the mud reservoir receiving portion 12 is a cylindrical shape that is circular in top view, but other shapes such as a polygonal shape such as a quadrangle and a hexagon or an elliptical shape It doesn't matter if it is a thing.

(N)
In the above embodiment, the joint 40 is provided with only one curved portion 40e, but two or more bent portions 40e may be provided.

Further, it is possible to replace the constituent elements in the above-described embodiment with well-known constituent elements as appropriate without departing from the spirit of the present invention.

The rainwater mass system of the present invention has the effect of increasing the degree of freedom of piping and improving the workability at the site, and is useful as a rainwater mass system connected to a gutter of a building or the like. is there.

1, 1A, 1B, 1C, 1D, 1E, 1F Rainwater mass 4, 4A, 4B, 4C Horizontal pull pipe 4a, 4b, 4c Insertion end 5 Drilling jig (drilling means)
6A Upper member 6B Lower member 10, 69, 70, 71 Mass body 10a, 60, 71a Horizontal pulling outer wall 10b Continuous installation part 10A Upper member 10B Lower member 11, 61 Rising pipe receiving port 11C, 61d Opening 12, 65 Mud reservoir 12C, 65c Mud reservoir space 12D, 65d Opening 13, 60a Insertion port 14 Water stop packing 15, 15A, 15B Reference line 19 Rising pipe 40 Joint 40c Insertion end 40d Mud receiving part 86, 90 Mud receiving part 100, 100A , 100B, 100C, 100D, 100E Rainwater mass system O mass axis

Claims (5)

The first horizontal pulling pipe and
Fittings and
The first horizontal pulling pipe is provided with a rainwater mass connected via the joint.
The joint
An insertion end provided at one end and inserted into the outer peripheral wall,
It has a socket provided at the other end and into which the first lateral pulling pipe is inserted.
Rainwater mass system. The joint has one or more bends on the outside of the outer wall of the rainwater mass.
The rainwater mass system according to claim 1. The receiving portion of the joint is partially in contact with the outer peripheral wall of the rainwater mass.
The rainwater mass system according to claim 1 or 2. The rainwater mass system according to claim 2, wherein the angle θ formed by the central axis of the insertion end portion and the central axis of the first horizontal pulling pipe is 90 ° to 135 °. Further provided with a second horizontal pulling pipe inserted into the outer peripheral wall of the rainwater mass,
The angle θ formed by the central axis of the insertion end and the central axis of the second horizontal pulling pipe is 20 ° to 90 °.
The rainwater mass system according to any one of claims 1 to 4.

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