JP7316144B2 - Stormwater basin and stormwater piping system - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Law On May 27, 2019, Sekisui Chemical Co., Ltd. published a rainwater tank and rainwater piping system invented by Yoshio Kaneko on the website at the following address.・Website publication date: May 27, 2019 ・Website address: https://www. sekisui. co. jp/news/2019/index. html: https://www. eslontimes. com/system/page/2-2019/1157

Application of Article 30, Paragraph 2 of the Patent Act On May 27, 2019 and July 29, 2019, Sekisui Chemical Co., Ltd. published a rainwater tank and rainwater tank invented by Yoshio Kaneko in its own catalog. Published about the piping system.・Sekisui Chemical Co., Ltd. Compact rainwater tank catalog (first edition) Date of issue: May 27, 2019 ・Sekisui Chemical Co., Ltd. Catalog of compact rainwater tank (revised 1st edition) Date of issue: July 2019 29th

The present invention relates to stormwater basins and stormwater piping systems.

2. Description of the Related Art Conventionally, in a building such as a house, there has been known a rainwater tank connected to a horizontal pipe piped underground, as disclosed in Patent Document 1, for example. Such a rainwater tank is generally made of polypropylene (PP) or made of polyvinyl chloride (PVC) and has a configuration in which the inflow port (receptacle) of the horizontal pipe is provided at a predetermined position in the circumferential direction. There is a trout.

JP 2016-194214 A

However, the conventional rainwater tank described above has the following problems.
That is, the rainwater trout made of polypropylene has a large overall shape due to manufacturing reasons. In the case of such a large rainwater basin, there is a problem that the rainwater basin itself is large and difficult to handle during construction in a house in a narrow space, and the construction is difficult due to the connection with the piping to be connected.
In addition, in the rainwater tank made of polyvinyl chloride, the insertion port (receptacle) of the horizontal pipe is provided at a fixed position in the circumferential direction. In other words, since the insertion port is not provided at a position suitable for the space and layout of the site, it may be difficult to insert the horizontal pipe into the rainwater basin during construction.

In addition, it is conceivable to form an opening for arranging a horizontal pipe in the rainwater basin by post-processing at a construction site or the like. When placing the cross-draw pipe through the opening and into the storm water basin, it is desirable not to over-insert the cross-draw pipe into the storm water basin.

The present invention has been made in view of such problems, and can improve the workability at the construction site by increasing the degree of freedom of piping, and properly regulates the insertion length of the horizontal pipe. It is an object of the present invention to provide a rainwater basin that can be used and a rainwater piping system provided with this rainwater basin.

In order to solve the above problems, the present invention proposes the following means.
The rainwater catch of the present invention is a rainwater catch that is buried in the ground and to which a horizontal pipe is connected, comprising: a main body portion in which an opening is formed in which the horizontal pipe is arranged; and an upper portion of the main body portion. a mud pool located below the mass body; and a lock located in any one of the mass body, the riser socket, and the mud pool. and a position index indicating the vertical position of the center of the opening is formed on the outer peripheral surface of the mass body portion, and the vertical direction of the center of the position index and the locking portion are aligned. is smaller than the radius of the laterally drawn pipe arranged in the opening, and the outer peripheral surface of the mass body portion is provided with a plurality of outer diameter indicators representing the outer diameter of the laterally drawn pipe, and the plurality of A plurality of position indicators corresponding to each of the outer diameter indicators are formed, and for each of the plurality of position indicators, the vertical distance between the vertical center of the position indicator and the locking portion is equal to the position It is characterized by being smaller than half of the outer diameter of the laterally drawn pipe represented by the outer diameter index corresponding to the index .

According to the present invention, an opening having a predetermined outer diameter can be formed at any position in the circumferential direction of the mass body using the opening means. A horizontal pulling pipe can be inserted into the opening and connected to the mass main body. In this manner, the position in the circumferential direction of the mass body to which the lateral pipe is connected can be freely set at the construction site.
In a conventional rainwater tank, sockets for lateral draw pipes are provided at predetermined circumferential positions. In the rainwater basin of the present invention, unlike the conventional rainwater basin, it is difficult to adjust the circumferential position of the socket for the horizontal pipe, or to bring in the rainwater basin with the wrong socket in the circumferential direction. Trouble goes away. Therefore, it is possible to increase the degree of freedom in laying the horizontal pull pipe, and to improve the workability at the construction site.

Further, an opening is formed with the center of the position index in the vertical direction as the center of the opening, and for example, a horizontal pipe is arranged coaxially with the opening. In this case, when the horizontal pipe is inserted into the opening of the rainwater tank, the vertical distance between the vertical center of the position indicator and the locking portion is smaller than the radius of the horizontal pipe placed in the opening. As a result, the lateral draw pipe comes into contact with the engaging portion, and the lateral draw pipe cannot be inserted into the rainwater tank beyond this contact state. Therefore, it is possible to properly regulate the length of insertion of the lateral pull pipe into the rainwater basin by the engaging portion.
Further, an opening corresponding to the outer diameter of the horizontal pipe indicated by the outer diameter index corresponding to the position index is formed centered on the position of the center of the position index in the vertical direction. Since the vertical distance between the vertical center of the position index and the locking portion is smaller than half the outer diameter of the horizontal pipe indicated by the outer diameter index corresponding to this position index, for example, the outer diameter indicated by the outer diameter index When a side pull tube having a diameter is placed coaxially with this opening, the side pull tube contacts the stop.
Therefore, even if a plurality of position indicators are formed on the basin main body, the length of insertion of the horizontal pipe having the outer diameter indicated by the outer diameter indicator corresponding to each position indicator into the rainwater basin is properly regulated. can do.

Another rainwater tank of the present invention is a rainwater tank buried in the ground and connected to a horizontal pipe, comprising: a main body portion having an opening in which the horizontal pipe is arranged; A riser pipe socket arranged in the upper part of the body, a mud pool arranged in the lower part of the mass body, and arranged in one of the mass body, the riser pipe socket and the mud pool a position indicator indicating the vertical position of the center of the opening is formed on the outer peripheral surface of the mass body, and the center of the position indicator in the vertical direction and the locking part are formed. is smaller than the radius of the horizontal pulling pipe arranged in the opening, and the radially outer surface of the mass body portion in the locking portion is vertically separated from the position index. It is characterized in that it is inclined with respect to the vertical direction so as to extend radially outward.
According to the present invention, an opening having a predetermined outer diameter can be formed at any position in the circumferential direction of the mass body using the opening means. A horizontal pulling pipe can be inserted into the opening and connected to the mass main body. In this manner, the position in the circumferential direction of the mass body to which the lateral pipe is connected can be freely set at the construction site.
In a conventional rainwater tank, sockets for lateral draw pipes are provided at predetermined circumferential positions. In the rainwater basin of the present invention, unlike the conventional rainwater basin, it is difficult to adjust the circumferential position of the socket for the horizontal pipe, or to bring in the rainwater basin with the wrong socket in the circumferential direction. Trouble goes away. Therefore, it is possible to increase the degree of freedom in laying the horizontal pull pipe, and to improve the workability at the construction site.

In addition, since the opening is formed around the common position index, for example, when the horizontal pipe is arranged coaxially with the opening, the horizontal pipe placed in the rainwater basin is not affected by the outer diameter of the horizontal pipe. The vertical positions of the centers are equal to each other. A horizontal draw pipe connected to a rainwater catch comes into contact with the radially outer surface of the locking portion, and this surface is inclined with respect to the vertical direction so as to radially outwardly move away from the position indicator in the vertical direction. ing. Therefore, as the outer diameter of the lateral draw pipe increases, the lateral draw pipe contacts radially outer positions on this surface. Therefore, the insertion length of the horizontal pipe into the rainwater basin is shortened, and the horizontal pipe having a relatively large outer diameter can be prevented from interfering with other horizontal pipes and the like in the rainwater basin.

Further, in the rainwater basin, the locking portion may be arranged along the entire circumference around the axis of the basin main body.
According to this invention, regardless of the position of the horizontal draw pipe around the axis of the mass body, the horizontal draw pipe comes into contact with the engaging portion, and the insertion length of the horizontal draw pipe into the rainwater basin is properly adjusted. can be regulated.

Moreover, in the rainwater basin, a plurality of the locking portions may be provided, and the plurality of locking portions may be spaced apart from each other around the axis of the mass main body.
According to the present invention, even if the horizontal pipe comes into contact with any one of the plurality of locking portions, the length of the horizontal pipe to be inserted into the rainwater receptacle is optimized, and rainwater flows through between the plurality of locking portions. can be done.

In addition, the rainwater tank may include a socket fixed to the tank main body and connected to the lateral pipe.
According to this invention, a pair of rainwater basins can be easily connected by connecting the socket of one rainwater basin to the horizontal pipe connected to the other one rainwater basin.

Further, the rainwater catchment includes a basket which is arranged in the mud catchment part and can be removed upward from the mud catchment part, the outside diameter of the rainwater catchment is 350 mm or less, and the outside diameter of the basket is 350 mm or less. may be 50 mm or more, and the length of the horizontal drawing pipe arranged in the mass body may be 150 mm or less.
According to this invention, a basket having an outer diameter of 50 mm or more can be drawn upward without interfering with the horizontal draw pipe in a state where the outer diameter of the rainwater tank is reduced to 350 mm or less.

Further, in the rainwater receptacle, the vertical length of the engaging portion may be equal to or less than the thickness of the pipe wall of the horizontal draw pipe arranged in the opening.
According to this invention, since the locking portion is not arranged at a position where the inner space of the horizontal pipe is projected in the longitudinal direction of the horizontal pipe, the locking portion is prevented from rainwater flowing from one side of the horizontal pipe and the rainwater basin to the other. can be prevented from becoming a hindrance.

Further, in the rainwater basin, the mud pool may be arranged inside the outer edge of the basin main body in a plan view.
According to the present invention, the space is formed below the mass body and radially outside the mud pool. For this reason, when a rainwater basin is used in a house or the like, and a rainwater drainage pipe to which the rainwater basin is connected and a drainage pipe for sewage generated from the room are arranged underground in separate systems, sewage cannot be stored in the space. It is possible to arrange the drainage pipes for the Therefore, the distance between the drain pipe for rain water and the drain pipe for sewage can be made close, and the pipes can be efficiently installed in a house in a narrow space.

Moreover, the rainwater piping system of the present invention is characterized by comprising the rainwater basin according to any one of the above and the plurality of horizontal pipes.
According to the present invention, it is possible to construct a rainwater piping system using a rainwater tank capable of increasing the degree of freedom of piping and improving workability at the site and appropriately regulating the insertion length of the horizontal pipe. can.

According to the rainwater receptacle of the present invention, it is possible to improve the workability at the construction site by increasing the degree of freedom of piping, and to properly regulate the insertion length of the horizontal draw pipe.

It is a figure which shows the schematic structure of the state where the rainwater tank of 1st Embodiment of this invention was used for the house. It is a side view of the same rainwater tank. It is a longitudinal cross-sectional view of the same rainwater basin. 3 is a cross-sectional view taken along a cutting line A1-A1 in FIG. 2; FIG. FIG. 4 is a cross-sectional view of main parts of a rainwater basin in a modified example of the first embodiment of the present invention; FIG. 5 is a vertical cross-sectional view of a rainwater basin according to a second embodiment of the present invention; It is a cross-sectional view of the same rainwater basin. 1 is a cross-sectional view of a conventional rainwater basin; FIG. FIG. 5 is a cross-sectional view of a rainwater basin according to a third embodiment of the present invention; FIG. 4 is a cross-sectional view showing a state in which a plurality of rainwater receptacles are connected to each other via horizontal rainwater pipes;

(First embodiment)
A first embodiment of a rainwater tank according to the present invention will be described below with reference to FIGS. 1 to 5. FIG.
As shown in FIG. 1, the rainwater tank 1 of the present embodiment is connected to a downpipe 101 of a house (building) 100 via a curved pipe portion 102 and a horizontal rainwater pipe (horizontal pipe) 103A. there is The rainwater tank 1 is buried in the ground G together with the bent pipe portion 102 and the horizontal rainwater pipe 103A. The rainwater tank 1 is further connected to a sewage pipe (not shown) via a horizontal rainwater pipe 103B.
Hereinafter, when the horizontal rainwater pipes 103A and 103B are not distinguished, they are collectively referred to as the horizontal rainwater pipe 103. As shown in FIG. The same applies to openings 12A, 12B and position indicators 14A, 14B, 14C, etc., which will be described later.

The horizontal rainwater pipes 103 are arranged along the horizontal plane while having an appropriate water gradient. The horizontal rainwater pipe 103 and the rainwater basin 1 constitute a rainwater piping system 2 .
On the other hand, sewage generated in a drainage facility 106 such as a toilet installed in a room of a house 100 is discharged from a vertical pipe 107 via a horizontal drainage pipe 108 and a confluence basin (not shown) to a sewage main pipe 109. drained to

For example, the horizontal rainwater pipe 103A is a pipe with a nominal diameter of 50 (outer diameter of 60 mm). The horizontal rainwater pipe 103B is a pipe with a nominal diameter of 75 (outer diameter of 89 mm). A rigid vinyl chloride pipe is preferably used as the material for the horizontal rainwater pipe 103 . The lateral rainwater pipes 103A and 103B have different outer diameters.
In addition to the horizontal rainwater pipes 103A and 103B, a pipe having a nominal diameter of 100 (outside diameter of 114 mm) is used as the horizontal rainwater pipe 103, although not shown. These horizontal rainwater pipes 103 with nominal diameters of 50, 75, and 100 are expected to be used in the rainwater basin 1 .

As shown in FIGS. 2 and 3, the rainwater catch 1 includes a catch main body 10, a riser pipe socket 25 arranged at the upper part of the catch main body 10, and a mud pool arranged at the lower part of the catch main body 10. a stop 40 located at the riser socket 25; and a basket 45 located within the mud pool 30.
The mass body portion 10, the riser pipe socket 25, and the locking portion 40 are each formed in a cylindrical shape, and the mud pool portion 30 and the basket 45 are each formed in a bottomed cylindrical shape. Axes of the mass body 10, the riser pipe socket 25, the mud pool 30, the locking part 40, and the basket 45 are arranged on a common axis O1. Hereinafter, the direction perpendicular to the axis O1 will be referred to as the radial direction, and the direction that rotates around the axis O1 will be referred to as the circumferential direction. The radial direction is the radial direction of the mass body portion 10 and the like.
The rainwater tank 1 is arranged with the axis O1 extending in the vertical direction.

The mass main body 10 includes a main body outer peripheral wall 11 formed with openings 12A and 12B in which the ends of the horizontal rainwater pipes 103 are arranged, and a connecting portion 13 connected to the riser pipe receptacle 25. ing.
The main body outer peripheral wall 11 is formed in a cylindrical shape. As shown in FIG. 3, the openings 12A and 12B are formed so as to face the outer peripheral wall 11 of the main body with the axis O1 interposed therebetween. A detailed position where the opening 12 is formed will be described later. It should be noted that the opening 12 is not formed in the rainwater basin 1 when the rainwater basin 1 is manufactured, and the opening 12 is formed in the rainwater basin 1 at the construction site as will be described later.

As shown in FIGS. 2 and 3, the outer peripheral surface of the main body outer wall 11 is provided with a plurality (three in this embodiment) of position indicators 14A, 14B, 14C and a plurality of outer diameter indicators 15A, 15B, 15C. , and a plurality of angle indices 16A, 16B, 16C are formed. The numbers of the position indicators 14, the outer diameter indicators 15, and the angle indicators 16 are not particularly limited.
The position index 14 represents the vertical position of the center of the openings 12A and 12B. In this embodiment, the position index 14 is an annular reference line extending in the circumferential direction. The position indicator 14 is formed over the entire circumference of the main body outer peripheral wall 11 . For example, the position indicator 14 is formed as a groove that is recessed radially inward from the outer peripheral surface of the main body outer peripheral wall 11 .
Note that the shape of the position indicator 14 is not limited to a groove shape, and may be formed as a ridge or the like protruding radially outward from the outer peripheral surface of the main body outer peripheral wall 11 .

The position indicators 14 are arranged at intervals in the vertical direction. Among the position indicators 14A, 14B, and 14C, the position indicator 14A is arranged at the uppermost position, and the position indicator 14C is arranged at the lowermost position. Position indicator 14B is arranged between position indicator 14A and position indicator 14C.
The vertical distance between the position indicator 14 and the engaging portion 40 will be described later.

The outer diameter index 15 represents the outer diameter of the lateral rainwater pipe 103 . In this example, the outer diameter index 15 is the nominal diameter of the horizontal rainwater pipe 103 . The nominal diameter of the horizontal rainwater pipe 103 corresponds to the outer diameter of the horizontal rainwater pipe 103 . For example, the outer diameter index 15A has a nominal diameter of 50 and represents an outer diameter of 60 mm. The outer diameter index 15B has a nominal diameter of 75 and represents an outer diameter of 89 mm.
Note that the outer diameter index 15 is not limited to the nominal diameter of the horizontal rainwater pipe 103, and may be the outer diameter of the horizontal rainwater pipe 103 or the like.
The outer diameter indicators 15A, 15B, 15C are arranged beside the position indicators 14A, 14B, 14C corresponding to the outer diameter indicators 15A, 15B, 15C, respectively. More specifically, the outer diameter indicator 15A is arranged just above the position indicator 14A. Outer diameter indicators 15B and 15C are arranged immediately above position indicators 14B and 14C, respectively.
It is preferable that the outer diameter index 15A be arranged at a position where the correspondence with the position index 14A is easy to understand. Therefore, it is preferable to dispose the outer diameter index 15A in the immediate vicinity of the position index 14A or on the position index 14A. The same applies to the outer diameter indicators 15B and 15C.

The plurality of angle indicators 16A represent circumferential positions on the position indicator 14A.
As shown in FIGS. 2 and 4, in this embodiment, the plurality of angle indicators 16A are depressions formed on the position indicator 14A. A plurality of angle indicators 16A are formed at equal angles around the axis O1. A plurality of angle indicators 16A are formed on the position indicator 14A. A part of the plurality of angle indicators 16 is removed from the main body outer peripheral wall 11 when forming the opening 12 . In addition, in FIG. 4, the removed angle index 16A is indicated by a chain double-dashed line M1.
In this example, at the time of manufacture, angle indicators 16A are formed at intervals of 45 degrees around the axis O1, and eight angle indicators 16A are formed on the outer peripheral surface of the outer peripheral wall 11 of the main body.
The plurality of angle indicators 16B, 16C are formed similarly to the plurality of angle indicators 16A.
The plurality of angle indicators 16A, 16B, 16C are arranged in alignment with each other in the circumferential direction. That is, in a plan view of the rainwater basin 1, the positions of the angle indicators 16B and 16C match the position of the angle indicator 16A.

The opening 12A is circular when viewed facing the opening 12A. As shown in FIGS. 3 and 4, the inner diameter of the opening 12A is larger than the outer diameter of the horizontal rainwater pipe 103A. An end portion of a lateral rainwater pipe 103A is arranged in the opening 12A.
The center of the circle of the opening 12A coincides with the vertical center of the position indicator 14A. As shown in FIG. 4, in this example, the center of the circle of opening 12A coincides with one of the plurality of angle indicators 16A (hereinafter also referred to as angle indicator 16A1). As described above, the angle indicator 16A1 is removed from the main body outer peripheral wall 11 when forming the opening 12A.

The opening 12B is circular when viewed facing the opening 12B. As shown in FIGS. 3 and 4, the inner diameter of the opening 12B is larger than the outer diameter of the horizontal rainwater pipe 103B. An end of a horizontal rainwater pipe 103B is arranged in the opening 12B.
The center of the circle of the opening 12B coincides with the vertical center of the position indicator 14B. As shown in FIG. 4, in this example, the center of the circle of opening 12B coincides with one of the plurality of angle indicators 16B (hereinafter also referred to as angle indicator 16B1). At the time of manufacturing the rainwater tank 1, the angle index 16B1 is an index arranged so as to face the angle index 16A1 among the plurality of angle indices 16B. As described above, the angle index 16B1 is removed from the main body outer peripheral wall 11 when forming the opening 12B.

In the plan view shown in FIG. 4, the horizontal rainwater pipe 103A and the horizontal rainwater pipe 103B are linearly connected by the rainwater basin 1. As shown in FIG.
For example, the horizontal rainwater pipe 103B is arranged at the position indicated by the two-dot chain line M2 in FIG. 1 may be connected. The opening for the horizontal rainwater pipe 103B is formed around the angle indicator 16B located at the center in the circumferential direction between the angle indicators 16A1 and 16B1 in plan view.
By using the angle index 16 in this way, the opening 12 can be easily formed in the main body outer peripheral wall 11 centering on the position where the entire circumference of the main body outer peripheral wall 11 is divided into a plurality of parts.

As shown in FIGS. 3 and 4, in the present embodiment, an annular sealing member 18A is attached to the opening peripheral edge portion of the opening 12A in the outer peripheral wall 11 of the main body. Therefore, the radius of the opening 12A is larger than the radius of the horizontal rainwater pipe 103A by about the thickness of the sealing member 18A. In other words, the inner diameter of the sealing member 18A and the outer diameter of the horizontal rainwater pipe 103A are equal to each other. A horizontal rainwater pipe 103A is arranged in the sealing member 18A. The horizontal rainwater pipe 103A is arranged coaxially with the opening 12A by the sealing member 18A.
Similarly, an annular sealing member 18B is attached to the periphery of the opening 12B in the outer peripheral wall 11 of the main body. Therefore, the radius of the opening 12B is larger than the radius of the lateral rainwater pipe 103B by about the thickness of the sealing member 18B. A horizontal rainwater pipe 103B is arranged in the sealing member 18B. The lateral rainwater pipe 103B is arranged coaxially with the opening 12B by the sealing member 18B.
The sealing member 18 is made of rubber, elastomer, or the like.

As shown in FIG. 3, the connecting portion 13 is formed in an annular shape. The connecting portion 13 extends radially inward from the upper end of the main body outer peripheral wall 11 . The connecting portion 13 is formed over the entire circumference of the main body outer peripheral wall 11 .

The riser pipe socket 25 includes a pipe body 26 and a receiving member 27 .
The tube main body 26 is formed in a cylindrical shape and arranged coaxially with the axis O1. The outer diameter of the pipe main body 26 is smaller than the inner diameter of the outer peripheral wall 11 of the main body. The inner peripheral edge of the connecting portion 13 is connected to the intermediate portion of the axis O1 on the outer peripheral surface of the pipe main body 26 . The receiving member 27 is formed in an annular shape. The receiving member 27 extends radially inward from the lower end of the pipe body 26 .
The internal space of the riser pipe socket 25 and the internal space of the mass body 10 communicate with each other.
A riser pipe 115 is connected to the riser pipe socket 25 . The riser pipe 115 is arranged along the vertical direction, and the lower end portion of the riser pipe 115 is arranged inside the pipe main body 26 . The lower surface of the riser pipe 115 contacts the receiving member 27 and is supported by the receiving member 27 from below the riser pipe 115 .

The mud pool 30 is formed in a cylindrical shape with a bottom. The mud pool 30 is arranged coaxially with the axis O1. The outer diameter of the mud pool portion 30 is smaller than the inner diameter of the main body outer peripheral wall 11 . The internal space of the mud pool 30 and the internal space of the mass body 10 communicate with each other.
A connecting portion 31 is fixed to the mud pool portion 30 . The connecting portion 31 includes a flange portion 32 and a connecting piece 33 .
The flange portion 32 is formed in an annular shape. The flange portion 32 extends radially outward from the upper end of the mud pool portion 30 .
The connecting piece 33 is formed in a cylindrical shape. The connecting piece 33 extends downward from the radially outer end of the flange portion 32 . The connecting piece 33 is arranged in the lower end portion of the main body outer peripheral wall 11 and is fixed to the main body outer peripheral wall 11 with an adhesive or the like.
In a plan view, the mud pool portion 30 is arranged within the outer edge of the mass body portion 10 (main body outer peripheral wall 11).

Locking portion 40 is formed in a cylindrical shape and arranged coaxially with axis O1. That is, the locking portion 40 is arranged all around the axis O1. A radially outer surface 40a of the locking portion 40 is a curved surface parallel to the axis O1.
The outer diameter of the locking portion 40 and the outer diameter of the mud pool portion 30 are approximately the same. The locking portion 40 extends downward from the inner peripheral edge of the receiving member 27 . The locking portion 40 is arranged on the receiving member 27 so as to be positioned above the position indicator 14 . The locking portion 40 is arranged inside the mass body portion 10 and radially inside the body outer peripheral wall 11 .
The vertical position of the lower end of the engaging portion 40 is constant regardless of the position in the circumferential direction.

For each of the position indicators 14 , the vertical distance between the vertical center of the position indicator 14 and the engaging portion 40 is more than half the outer diameter of the laterally drawn tube 103 represented by the outer diameter indicator 15 corresponding to the position indicator 14 . is also small.
Specifically, the vertical distance LA between the vertical center of the position indicator 14A and the engaging portion 40 is the outer diameter (60 mm) of the horizontal pull tube 103A indicated by the outer diameter indicator 15A corresponding to the position indicator 14A. less than half. That is, the distance LA is a value smaller than 30 mm, for example 25 mm. The distance LA is smaller than the radius of the lateral pull tube 103A arranged in the opening 18a.
A vertical distance LB between the vertical center of the position indicator 14B and the engaging portion 40 is smaller than half of the outer diameter (89 mm) of the horizontal pull tube 103B represented by the outer diameter indicator 15B corresponding to the position indicator 14B. That is, the distance LB is a value smaller than 44.5 mm, for example 40 mm.
The same is true for the distance LC corresponding to the position index 14C.

Among the distances LA, LB, and LC, the minimum distance LA is smaller than the radius of the horizontal rainwater pipe 103A having the smallest outer diameter among the horizontal rainwater pipes 103 . The lateral rainwater pipes 103 are in contact with the surfaces 40a of the locking portions 40, respectively.
In this embodiment, the locking portion 40 is arranged at the riser pipe receiving port 25, but the locking portion is the flange portion of the connecting portion 31, as indicated by the chain double-dashed line M4 in FIG. 32 may be placed. In this case, the locking portion 40 is arranged so as to be positioned below the position indicator 14 .
Also, the locking portion may be arranged in either the mass body portion 10 or the mud pool portion 30 .

It is preferable that the vertical length L1 of the engaging portion 40 is equal to or less than the thickness L2 of the wall of the horizontal pulling pipe 103A arranged in the opening 12A. It is more preferable that the length L1 is equal to or less than the thickness of the wall of the thinnest pipe among the plurality of transverse pipes 103 .
The length of the lateral pull pipe 103 arranged in the mass body 10 is preferably 150 mm or less. That is, it is preferable that the length of the horizontal pulling tube 103, which is arranged in the mass body 10 when the horizontal pulling tube 103 contacts the surface 40a of the engaging portion 40, is 150 mm or less.

The basket 45 is for carrying out the earth and sand, the leaves, etc. which accumulate in the rainwater basin 1 from the inside of the rainwater basin 1 to the outside. The basket 45 includes a container body 46 and a handle 47. - 特許庁
The container main body 46 is formed in a cylindrical shape with a bottom and is arranged in the mud pool portion 30 .
The handle 47 is formed, for example, in a shape in which a shaft-like member is curved so as to protrude upward. Each longitudinal end of the handle 47 is connected to the upper end of the container body 46 . The upper end of the handle 47 reaches the receiving member 27 of the riser pipe socket 25 . The outer diameter of basket 45 is preferably 50 mm or more.
The outer diameter of the basket 45 is smaller than the inner diameters of the riser pipe socket 25 and the locking portion 40, respectively. The basket 45 can be removed upward from the mud pool 30 and taken out of the rainwater catch 1 through the catch body 10 and the riser pipe socket 25 .

The mass main body 10, the riser pipe socket 25, and the locking portion 40 are integrally formed of a resin material such as polyvinyl chloride or polypropylene that can be cut by hole-forming means, which will be described later.
The mud pool 30 and basket 45 can be made of the same material as the mass body 10 and the like.
The outer diameter of the rainwater basin 1, that is, the outer diameter of the basin body 10 is preferably 350 mm or less.

Next, a method of constructing a rainwater trough for connecting the horizontal rainwater pipe 103 to the rainwater trough 1 at the time of manufacture will be described.
First, in the opening step (step S1), openings 12 are formed at desired positions in the circumferential direction of the main body 10 of the rainwater tank 1 by using opening means such as a hole saw. At this time, the position index 14 and the angle index 16 at the center of the opening 12 are determined according to the outer diameter of the horizontal rainwater pipe 103 connected to the rainwater tank 1 and the direction in which the horizontal rainwater pipe 103 is connected.
For example, when the horizontal rainwater pipe 103A with a nominal diameter of 50 and the horizontal rainwater pipe 103B with a nominal diameter of 75 are connected to the rainwater basin 1 in a straight line with the rainwater basin 1 interposed therebetween, the following is performed. are formed with openings 12A and 12B.

That is, the vertical center of the position index 14A corresponding to the outer diameter index 15A representing the nominal diameter 50 is selected as the center of the opening 12A formed in the outer peripheral wall 11 of the main body. At this time, selecting the position of the angle indicator 16A1, which is one of the plurality of angle indicators 16A, facilitates positioning in the circumferential direction. A tip of a drill such as a hole saw having an outer diameter larger than 60 mm (for example, 70 mm) is applied to a position above the angle indicator 16A1 in the position indicator 14A. The opening 12A is formed in the main body outer peripheral wall 11 by rotating the drilling means around the drill with an impact driver or the like.
As the center of the opening 12B formed in the main body outer peripheral wall 11, the vertical center of the position index 14B corresponding to the outer diameter index 15B representing the nominal diameter 75 is selected. At this time, if the position of the angle indicator 16B1, which is one of the plurality of angle indicators 16B, is selected, the opening 12B is formed so as to face the opening 12A.
After the opening step S1 is completed, the process proceeds to step S2.

Next, in the piping step (step S2), the horizontal rainwater pipe 103A is inserted into the opening 12A, and the horizontal rainwater pipe 103B is inserted into the opening 12A.
Before inserting the horizontal rainwater pipe 103, sealing members 18A and 18B are attached to the openings 12A and 12B, respectively. At this time, it is preferable to apply a lubricant to the inner peripheral surfaces of the sealing members 18A and 18B. Then, the horizontal rainwater pipe 103A is inserted into the sealing member 18A, and the horizontal rainwater pipe 103B is inserted into the sealing member 18B.
When the piping step S2 is finished, all the steps of the method for constructing the rainwater tank are completed, and the rainwater tank horizontal pipe 103 is connected to the rainwater tank 1. As shown in FIG.

As described above, according to the rainwater tank 1 of the present embodiment, the openings 12A and 12B having a predetermined outer diameter can be formed at arbitrary positions in the circumferential direction of the tank main body 10 using the opening means. can. A horizontal rainwater pipe 103 can be inserted into the openings 12A and 12B and connected to the mass main body 10 . In this manner, the position in the circumferential direction of the mass main body 10 to which the horizontal rainwater pipe 103 is connected can be freely set at the construction site.
In a conventional rainwater tank, sockets for lateral rainwater pipes are provided at predetermined circumferential positions. In the rainwater basin 1 of the present embodiment, unlike the conventional rainwater basin, the circumferential position of the socket for the horizontal rainwater pipe is adjusted, and the rainwater basin with the wrong socket in the circumferential direction is carried in. This eliminates troubles such as falling off. Therefore, it is possible to increase the flexibility of piping of the rainwater horizontal pipe 103, and to improve the workability at the construction site.

Further, the opening 12A is formed with the center of the position index 14A in the vertical direction as the center of the opening 12A, and the lateral rainwater pipe 103A is arranged coaxially with the opening 12A. In this case, when the horizontal rainwater pipe 103A is inserted into the opening 12A of the rainwater tank 1, the vertical distance LA between the vertical center of the position indicator 14A and the engaging portion 40 is arranged in the opening 12A. Since the radius of the horizontal rainwater pipe 103A is smaller than the radius of the horizontal rainwater pipe 103A, the horizontal rainwater pipe 103A comes into contact with the locking portion 40, and the horizontal rainwater pipe 103A cannot be inserted into the rainwater receptacle 1 beyond this contact state.
Therefore, the length of insertion of the lateral rainwater pipe 103A into the rainwater receptacle 1 can be appropriately regulated by the locking portion 40. As shown in FIG. Specifically, when the horizontal rainwater pipe 103 is inserted too far into the rainwater basin 1, the horizontal rainwater pipe 103 interferes when the basket 45 is removed, and the basket 45 cannot be removed from the rainwater basin 1. can be prevented.

An opening 12 corresponding to the outer diameter of the horizontal rainwater pipe 103 indicated by the outer diameter index 15 corresponding to the position index 14 is formed with the center position of the position index 14 in the vertical direction as the center. For each of the plurality of position indicators 14 , the vertical distance between the vertical center of the position indicator 14 and the engaging portion 40 is the outer diameter indicator 15 corresponding to this position indicator 14 . Since it is smaller than half the diameter, when the horizontal rainwater pipe 103 having the outer diameter represented by the outer diameter index 15 is arranged coaxially with this opening, the horizontal rainwater pipe 103 comes into contact with the locking portion 40 .
Therefore, even when a plurality of position indicators 14 are formed on the mass main body 10 , the rainwater horizontal pipe 103 having the outer diameter indicated by the outer diameter indicator 15 corresponding to each position indicator 14 can reach the rainwater basin 1 . The insertion length can be properly regulated respectively.

The locking portion 40 is arranged all around the axis O1. Therefore, even when the horizontal rainwater pipe 103 is arranged at any position around the axis O1, the horizontal rainwater pipe 103 contacts the locking portion 40, and the horizontal rainwater pipe 103 is inserted into the rainwater basin 1. The length can be properly regulated.
The rainwater basin 1 has an outer diameter of 350 mm or less, and the basket 45 has an outer diameter of 50 mm or more. The length of the horizontal rainwater pipe 103 arranged in the mass body 10 is 150 mm or less. Therefore, the basket 45 having an outer diameter of 50 mm or more can be drawn upward without interfering with the rainwater horizontal pipe 103 while the outer diameter of the rainwater tank 1 is reduced to 350 mm or less.

The vertical length L1 of the locking portion 40 is equal to or less than the thickness of the pipe wall of the lateral rainwater pipe 103 arranged in the opening 12 . As a result, since the locking portion 40 is not arranged at a position where the inner space of the horizontal rainwater pipe 103 is projected in the longitudinal direction of the horizontal rainwater pipe 103, the inner space of the horizontal rainwater pipe 103 and the rainwater basin 1 are not arranged. It is possible to prevent the locking portion 40 from becoming a hindrance to rainwater flowing from one side to the other side.
Since the mud pool portion 30 is arranged inside the outer edge of the mass body portion 10 in plan view, a space is formed below the mass body portion 10 and radially outside the mud pool portion 30 . be. For this reason, when the rainwater basin 1 is used in a house or the like, and the rainwater drainage pipe to which the rainwater basin 1 is connected and the drainage pipe for the sewage generated from the room are arranged in the ground in different systems, the above-mentioned space is required. It is possible to arrange the drainage pipe for sewage closer to the Therefore, the distance between the drain pipe for rain water and the drain pipe for sewage can be made close, and the pipes can be efficiently installed in a house in a narrow space.

In addition, according to the rainwater piping system 2 of the present embodiment, it is possible to increase the degree of freedom of piping and improve workability at the site, and the rainwater receptacle can appropriately regulate the insertion length of the horizontal rainwater pipe 103. 1 can be used to configure a rainwater piping system 2 .

In addition, as shown in FIG. 5, the rainwater receptacle 1A may have a plurality of locking portions 50. FIG. The plurality of locking portions 50 are spaced apart from each other around the axis O1. That is, there is a circumscribed circle contacting each of the plurality of locking portions 50 . It is preferable that the distance between the locking portions 50 adjacent in the circumferential direction is shorter than the diameter of the horizontal rainwater pipe 103A.
In this modified example, the cross-sectional shape of the engaging portion 50 perpendicular to the axis O1 is circular, and the engaging portion 50 is formed in a cylindrical shape, for example.
With this configuration, even when the horizontal rainwater pipe 103 comes into contact with any one of the plurality of locking portions 50, the length of insertion of the horizontal rainwater pipe 103 into the rainwater basin 1A can be appropriately adjusted. Rainwater can flow through between the locking portions 50 .
Note that the cross-sectional shape of the engaging portion perpendicular to the axis O1 is not limited to a circular shape, and may be an elliptical shape, a polygonal shape such as a square shape, or the like.

(Second embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. 6 to 8. Parts that are the same as those of the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. explain.
As shown in FIGS. 6 and 7, the rainwater basin 3 of the present embodiment has a position indicator 55 and an engaging portion instead of the position indicator 14, the outer diameter indicator 15, and the locking portion 40 of the rainwater basin 1 of the first embodiment. A stop portion 56 is provided. 6 is a cross-sectional view taken along line A2-A2 in FIG. The locking portion 56 is indicated by a chain double-dashed line in FIG.
One position index 55 is formed on the outer peripheral surface of the main body outer peripheral wall 11 . The outer diameter index 15 is not formed on the outer peripheral surface of the main body outer peripheral wall 11 . An angle index 16 is preferably formed on the outer peripheral surface of the main body outer peripheral wall 11 .

The position indicator 55 is formed on the outer peripheral surface of the main body outer peripheral wall 11 . The position index 55 is an annular reference line extending in the circumferential direction. In this embodiment, the centers of the openings 12A and 12B are formed at the center of the position index 55 in the vertical direction. It should be noted that regardless of the outer diameter of the opening for the horizontal rainwater pipe 103 formed in the outer peripheral wall 11 of the main body 11, the center of the opening is arranged at the center of the position index 55 in the vertical direction.

Locking portion 56 is formed in a cylindrical shape and arranged coaxially with axis O1. A radially outer surface 56 a of the engaging portion 56 is inclined with respect to the vertical direction so as to continuously face radially outward as it is separated upward from the position indicator 55 . A cross section of the surface 56a taken along a plane including the axis O1 is two straight line segments. The locking portion 56 is arranged on the receiving member 27 of the riser pipe socket 25 so as to be positioned above the position index 55 .
A vertical distance L<b>4 between the vertical center of the position indicator 55 and the engaging portion 56 is smaller than the radius of the horizontal rainwater pipe 103 arranged in the opening 12 . More specifically, the distance L4 is smaller than the radius of the horizontal rainwater pipe 103A having the smallest outer diameter among the horizontal rainwater pipes 103 . The vertical distance L5 between the vertical center of the position indicator 55 and the upper end of the locking portion 56 is the largest outer diameter of the horizontal rainwater pipes 103 (horizontal rainwater pipe with a nominal diameter of 100). 103).

Each lateral rainwater pipe 103 is in contact with the surface 56 a of the locking portion 56 . Since the vertical position of the center of each horizontal rainwater pipe 103 is equal to each other regardless of the outer diameter of the horizontal rainwater pipe 103, as the outer diameter of the horizontal rainwater pipe 103 increases, this surface The horizontal rainwater pipe 103 comes into contact with the radially outer position of . Therefore, as the outer diameter of the horizontal rainwater pipe 103 increases, the length of insertion of the horizontal rainwater pipe 103 into the rainwater basin 3 becomes shorter (see FIG. 7).
A description will be given of a case where the insertion lengths of the plurality of horizontal pipes 103 into the rainwater basin 6 are equal to each other like the conventional rainwater basin 6 shown in FIG. In this case, as the outer diameter of the horizontal rainwater pipe 103 increases, the horizontal rainwater pipe 103 tends to interfere with other horizontal rainwater pipes 103 in the rainwater basin 6 .
In contrast, in the rainwater basin 3 of the present embodiment, as the outer diameter of the horizontal rainwater pipe 103 increases, the length of insertion of the horizontal rainwater pipe 103 into the rainwater basin 3 becomes shorter. It is possible to prevent the horizontal rainwater pipe 103B having a relatively large diameter from interfering with the other horizontal rainwater pipe 103A in the rainwater basin 3.

It should be noted that the locking portion may be arranged at the connecting portion 31 . In this case, the radially outer surface of the engaging portion 56 is inclined with respect to the vertical direction so as to extend radially outward as it is spaced downward from the position indicator 55 .
6, the surface of the locking portion may intermittently extend outward in the radial direction as it is separated from the position indicator 55 in the vertical direction. That is, the surface is stepped. Even with this configuration, the same effect as that of the locking portion 56 of the rainwater receptacle 3 of the present embodiment can be obtained.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. 9 and 10. Parts that are the same as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. explain.
The rainwater receptacle 4 shown in FIG. 9 is provided with a socket 60 that is fixed to the main body 10 and to which the horizontal rainwater pipe 103 is connected.
For example, the socket 60 is for the horizontal rainwater pipe 103A. That is, the inner diameter of the end of the socket 60 and the outer diameter of the horizontal rainwater pipe 103A are equal to each other.
In this example, a flat outer wall 65 is formed on a portion of the outer peripheral wall 11 of the mass main body 10 in the circumferential direction. The receptacle 60 is fixed to the flat outer wall 65 . Receptacle 60 extends radially outwardly from flat outer wall 65 .
The radially outer end of the receptacle 60 is arranged on the reference circle C passing through the outer peripheral surface of the mass body 10, or is arranged radially inside the reference circle C. As shown in FIG. With this configuration, even when the socket 60 is fixed to the basin main body 10, it is possible to suppress the outer diameter of the rainwater basin 4 from increasing.
The socket 60 may be formed integrally with the flat outer wall 65 or may be formed separately from the flat outer wall 65 and then fixed to the flat outer wall 65 .

In addition, it is preferable that the rainwater tank 4 is provided with a socket 60 having an inner diameter corresponding to each outer diameter of not only the horizontal rainwater pipe 103A but also the horizontal rainwater pipe 103B. That is, the rainwater basin 4 has a receptacle 60 with an inner diameter corresponding to the outer diameter of the horizontal rainwater pipe 103A, and the rainwater basin 4 has a receptacle 60 with an inner diameter corresponding to the outer diameter of the horizontal rainwater pipe 103B. etc., should be prepared respectively.

For example, as shown in FIG. 10, a plurality of rainwater basins 4 can be connected to each other via horizontal rainwater pipes 103A. A downspout 101 (not shown) is connected to the rainwater trough 4A arranged most upstream among the plurality of rainwater troughs 4 . The rainwater basin 4A serves as a starting point for a plurality of rainwater basins 4. As shown in FIG.
In this case, since at least one horizontal rainwater pipe 103A is connected to each rainwater tank 4, the socket 60 of one rainwater tank 4 is connected to another rainwater tank 4 for rainwater. A pair of rainwater receptacles 4 can be easily connected by connecting them to the lateral pipe 103A. And construction of the rainwater receptacles 4 can be performed easily.

As described above, the first to third embodiments of the present invention have been described in detail with reference to the drawings. change, combination, deletion, etc. of Furthermore, it goes without saying that the configurations shown in the respective embodiments can be used in combination as appropriate.
For example, in the first to third embodiments, the angle index 16 may not be formed. The rainwater catch need not comprise the sealing member 18 and the basket 45 . If the rainwater basin does not have the sealing member 18, the inner diameter of the opening 12A for the horizontal rainwater pipe 103A and the outer diameter of the horizontal rainwater pipe 103A may be equal to each other. At this time, the horizontal rainwater pipe 103A is arranged coaxially with the opening 12A. The same applies to the opening 12B.
The vertical length L1 of the locking portion 40 may be longer than the thickness L2 of the wall of the horizontal pulling pipe 103A arranged in the opening 12A. At least part of the mud pool portion 30 may be arranged outside the outer edge of the mass body portion 10 in plan view.

Reference Signs List 1, 1A, 3, 4 rainwater tank 2 rainwater piping system 10 tank body 12A, 12B opening 14A, 14B, 14C position index 15A, 15B, 15C outer diameter index 25 riser pipe socket 30 mud pool 40, 50, 56 Locking portion 45 Basket 56a Surface 60 Receptacle 103A, 103B Horizontal pipe for rainwater (horizontal pipe)
G underground

Claims (9)

A rainwater tank buried in the ground and connected to a horizontal pipe,
a mass main body having an opening in which the horizontal pipe is arranged;
a riser pipe socket disposed on the upper portion of the mass body;
a mud pool disposed below the mass body;
a locking portion disposed in one of the mass body portion, the riser pipe socket, and the mud pool portion;
A position index indicating the vertical position of the center of the opening is formed on the outer peripheral surface of the mass body,
the vertical distance between the vertical center of the position indicator and the engaging portion is smaller than the radius of the horizontal pulling pipe arranged in the opening;
On the outer peripheral surface of the mass main body,
a plurality of outer diameter indicators representing the outer diameter of the horizontal pipe;
a plurality of position indicators corresponding to each of the plurality of outer diameter indicators are formed;
For each of the plurality of position indicators, the vertical distance between the center of the position indicator in the vertical direction and the engaging portion is half the outer diameter of the horizontal pull pipe represented by the outer diameter indicator corresponding to the position indicator. A rainwater tank smaller than . A rainwater tank buried in the ground and connected to a horizontal pipe,
a mass main body having an opening in which the horizontal pipe is arranged;
a riser pipe socket disposed on the upper portion of the mass body;
a mud pool disposed below the mass body;
a locking portion disposed in one of the mass body portion, the riser pipe socket, and the mud pool portion;
A position index indicating the vertical position of the center of the opening is formed on the outer peripheral surface of the mass body,
the vertical distance between the vertical center of the position indicator and the engaging portion is smaller than the radius of the horizontal pulling pipe arranged in the opening;
A rainwater receptacle in which a surface of the engaging portion on the radially outer side of the mass body portion is inclined with respect to the vertical direction so as to face the radially outer side as the surface is separated from the position indicator in the vertical direction. 3. The rainwater catch basin according to claim 1 , wherein the engaging portion is arranged along the entire circumference around the axis of the catch body portion. A plurality of the locking portions are provided,
The rainwater basin according to claim 1 or 2 , wherein the plurality of locking portions are spaced apart from each other around the axis of the basin body. The rainwater catch according to any one of claims 1 to 4 , further comprising a socket fixed to the catch main body and connected to the lateral pipe. a basket disposed within the mud pool and removable upwardly with respect to the mud pool;
The rainwater basin has an outer diameter of 350 mm or less,
The basket has an outer diameter of 50 mm or more,
6. The rainwater catch according to any one of claims 1 to 5 , wherein the length of the horizontal pipe arranged in the catch main body is 150 mm or less. The rainwater receptacle according to any one of claims 1 to 6 , wherein the vertical length of the engaging portion is equal to or less than the thickness of the pipe wall of the horizontal pipe arranged in the opening. The rainwater catch according to any one of claims 1 to 7, wherein the mud pool is arranged inside the outer edge of the catch main body in a plan view. a stormwater basin according to any one of claims 1 to 8 ;
the horizontal pulling pipe;
stormwater piping system.

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