Bent pipe for rain gutter, and rain gutter system

Abstract

To provide a bent pipe for a rain gutter which is excellent in designability.SOLUTION: A bent pipe 100 for a rain gutter includes a first straight pipe part 10 having a first socket part 16 on one side, a second straight pipe part 12 having a second socket part 18 on one side, and a third straight pipe part 14 whose one end is connected to a side opposite to the first socket part 16 of the first straight pipe part 10 and the other end is connected to a side opposite to the second socket part 18 of the second straight pipe part 12, wherein an axis O1 of the first straight pipe part 10 and an axis O3 of the third straight part 14 cross each other, and an axis O2 of the second straight pipe part 12 and an axis O3 of the third straight part 14 cross each other.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a bent pipe for a rain gutter and a rain gutter system. [Background technology]

[0002] Generally, buildings are equipped with gutters to catch rainwater that runs off the roof and channel it to the ground. Gutters are made up of multiple components such as eaves gutters, water collectors, downspouts, straight pipes, and bent pipes (elbows).

[0003] In gutters, bent pipes are used as joints to connect straight pipes in the sections that lead rainwater from horizontal pipes to vertical pipes and in the sections that lead rainwater from vertical pipes to horizontal pipes. For example, Figure 4 of Patent Document 1 discloses an elbow with a curved 90° bend as a bent pipe used in a siphon gutter system. Also, Figure 6 of Patent Document 1 discloses a combination elbow that combines elbows with curved 45° bends. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6279794 Summary of the Invention [Problem to be solved by the invention]

[0005] However, conventional curved pipes for rain gutters such as those shown in Figures 4 and 6 of Patent Document 1 have many irregularities, making them unattractive and lacking in design.

[0006] An object of the present invention is to provide a curved pipe for a rain gutter that is excellent in design. [Means for solving the problem]

[0007] The present invention has the following aspects. [1] A first straight pipe section having a first receiving portion on one side; a second straight pipe section having a second socket section on one side; a third straight pipe section, one end of which is connected to the side of the first straight pipe section opposite to the first receiving port section, and the other end of which is connected to the side of the second straight pipe section opposite to the second receiving port section; A curved pipe for a gutter, wherein the axis of the first straight pipe section intersects with the axis of the third straight pipe section, and the axis of the second straight pipe section intersects with the axis of the third straight pipe section. [2] A curved pipe for a gutter as described in [1], wherein the axis of the first straight pipe section, the axis of the second straight pipe section, and the axis of the third straight pipe section are on the same plane. [3] A curved pipe for a gutter as described in [1] or [2], in which a bent first pipe member having a portion of the first straight pipe portion side of the first straight pipe portion and the third straight pipe portion is connected to a bent second pipe member having the second straight pipe portion and the remaining portion of the third straight pipe portion on the second straight pipe portion side, and the third straight pipe portion has a dividing line. [Effects of the Invention]

[0008] According to the present invention, a curved pipe for a rain gutter having excellent design can be provided. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a front view illustrating a first embodiment of a curved pipe for a rain gutter according to the present invention. FIG. [Figure 2] FIG. 2 is a vertical cross-sectional view of the curved pipe for a rain gutter shown in FIG. 1. [Figure 3] FIG. 4 is a vertical cross-sectional view illustrating a second embodiment of a curved pipe for a rain gutter according to the present invention. [Figure 4] 1 is a front view illustrating a first embodiment of a curved pipe for a rain gutter according to the present invention. FIG. [Figure 5] FIG. 2 is a vertical cross-sectional view of the curved pipe for a rain gutter shown in FIG. 1. [Figure 6] 1 is a schematic diagram illustrating an embodiment of a siphon gutter system equipped with a curved gutter pipe according to the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] The curved pipe for a rain gutter of the present invention can be used, for example, in a siphon rain gutter system. Hereinafter, an embodiment of the bent pipe for a rain gutter of the present invention will be described with reference to the drawings. Note that the dimensions of the drawings shown in the following description are merely examples, and the present invention is not necessarily limited to these. Appropriate changes can be made within the scope of the present invention.

[0011] First Embodiment As shown in FIGS. 1 and 2, the bent pipe 100 for a rain gutter of this embodiment includes a first straight pipe section 10, a second straight pipe section 12, and a third straight pipe section .

[0012] The first straight pipe section 10 has a first receiving port 16 at one end of the pipe that receives the insertion port of a straight pipe such as a vertical pipe or a horizontal pipe. The first straight pipe section 10 is configured as a circular straight pipe made of, for example, hard polyvinyl chloride. The material and size of the first straight pipe section 10 are not particularly limited and can be set as desired.

[0013] The second straight pipe section 12 has a second receiving port 18 at one end of the pipe that receives the insertion port of a straight pipe such as a vertical pipe or a horizontal pipe. The second straight pipe section 12 is configured as a circular straight pipe made of, for example, hard polyvinyl chloride. The material and size of the second straight pipe section 12 are not particularly limited and can be set as desired.

[0014] The third straight pipe section 14 is configured as, for example, a circular straight pipe made of hard polyvinyl chloride. The material and size of the third straight pipe section 14 are not particularly limited and can be set arbitrarily. It is preferable that the outer diameter of the first straight pipe section 10, the outer diameter of the second straight pipe section 12, and the outer diameter of the third straight pipe section 14 are the same in terms of excellent design.

[0015] In the bent gutter pipe 100, a first end 14a, which is one axial end of the third straight pipe section 14, is directly connected to the side of the first straight pipe section 10 opposite the first receiving port section 16. The first straight pipe section 10 and the third straight pipe section 14 are connected so that the axis O1 of the first straight pipe section 10 and the axis O3 of the third straight pipe section 14 intersect.

[0016] The angle θ1 between the axis O1 of the first straight pipe section 10 and the axis O3 of the third straight pipe section 14 is preferably 130° or more and 140° or less, and more preferably 134° or more and 136° or less. The angle θ1 is set so that the angle θ3 (described later) is 90° or more and 92° or less. The angle θ1 refers to the smaller angle (minor angle) between the intersection of the axis O1 and the axis O3 and the angle shared by the axis O1 and the axis O3.

[0017] In a front view of the first straight pipe section 10 and the third straight pipe section 14, the outer edge 11a on the minor angle side of the intersection of the axis O1 and the axis O3 is in the shape of a broken line. That is, on the minor angle side of the first straight pipe section 10 and the third straight pipe section 14, a corner is formed by the linear ridge line 10a of the first straight pipe section 10 and the linear ridge line 14a of the third straight pipe section 14. The front view of the first straight pipe section 10 and the third straight pipe section 14 means a view from a direction perpendicular to a plane including the axis O1 and the axis O3.

[0018] Similarly, the outer edges 11b on the reflex angle side of the intersection of the axis O1 and the axis O3 in a front view of the first straight pipe section 10 and the third straight pipe section 14 are bent lines. That is, on the reflex angle side of the first straight pipe section 10 and the third straight pipe section 14, a corner is formed by the linear ridge line 10b of the first straight pipe section 10 and the linear ridge line 14b of the third straight pipe section 14.

[0019] In the bent gutter pipe 100, the second end 14b, which is the other axial end of the third straight pipe section 14, is directly connected to the side of the second straight pipe section 12 opposite the second receiving port section 18. The second straight pipe section 12 and the third straight pipe section 14 are connected so that the axis O2 of the second straight pipe section 12 and the axis O3 of the third straight pipe section 14 intersect.

[0020] The angle θ2 formed by the axis O2 of the second straight pipe section 12 and the axis O3 of the third straight pipe section 14 is the same as the angle θ1, and an angle θ3 described below is set to be 90° or more and 92° or less. The angle θ2 refers to the smaller angle (minor angle) between the intersection of the axis O2 and the axis O3 and the angle shared by the axis O2 and the axis O3.

[0021] In a front view of the second straight pipe section 12 and the third straight pipe section 14, the outer edge 13a on the minor angle side of the intersection of the axis O2 and the axis O3 is in the shape of a broken line. That is, on the minor angle side of the second straight pipe section 12 and the third straight pipe section 14, a corner is formed by the linear ridge line 12a of the second straight pipe section 12 and the linear ridge line 14a of the third straight pipe section 14. Note that the front view of the second straight pipe section 12 and the third straight pipe section 14 means a view from a direction perpendicular to a plane including the axis O2 and the axis O3.

[0022] Similarly, the outer edge 13b on the reflex angle side of the intersection of the axis O2 and the axis O3 in a front view of the second straight pipe section 12 and the third straight pipe section 14 is in the form of a bent line. That is, on the reflex angle side of the second straight pipe section 12 and the third straight pipe section 14, a corner is formed by the linear ridge line 12b of the second straight pipe section 12 and the linear ridge line 14b of the third straight pipe section 14.

[0023] In the curved pipe for a rain gutter 100, the axis O1 of the first straight pipe section 10, the axis O2 of the second straight pipe section 12, and the axis O3 of the third straight pipe section 14 are on the same plane. This gives the curved pipe for a rain gutter 100 an excellent design when viewed from the front.

[0024] When the axis O1, axis O2, and axis O3 are on the same plane, the angle θ3 formed by the axis O1 of the first straight pipe section 10 and the axis O2 of the second straight pipe section 12 is preferably 90° or more and 92° or less, and more preferably 91.1°. If the angle θ3 is equal to or greater than the lower limit of the range, a reverse gradient does not occur, and if the angle θ3 is equal to or less than the upper limit of the range, the pipe fits well in the vertical direction, making it easier to install the support that supports the pipe. The angle θ3 refers to the smaller angle (minor angle) between the intersection of the axis O1 and the axis O2 and the angle shared by the axis O1 and the axis O2.

[0025] The curved pipe for a rain gutter 100 can be used by connecting a vertical pipe or a horizontal pipe to the first receiving portion 16 and the second receiving portion 18, respectively. As shown in FIG. 2, the curved pipe 100 for a rain gutter is formed by connecting a first pipe member 110 and a second pipe member 120 using a short pipe 130.

[0026] The first pipe member 110 is a bent pipe member having a first straight pipe section 10 and a part of the third straight pipe section 14 on the first straight pipe section 10 side. The first pipe member 110 has a socket 112 for receiving a short pipe 130 at the pipe end on the side forming part of the third straight pipe section 14.

[0027] The second pipe member 120 is a bent pipe member having a second straight pipe section 12 and a remaining portion of the third straight pipe section 14 on the second straight pipe section 12 side. The second pipe member 120 has a socket 122 for receiving a short pipe 130 at the pipe end on the side forming the remaining portion of the third straight pipe section 14.

[0028] The total length of the socket 112 of the first pipe member 110 and the socket 122 of the second pipe member 120 in the direction of the axis O3 matches the length of the short pipe 130. The first pipe member 110 and the second pipe member 120 are connected in a state in which the socket 112 of the first pipe member 110 receives one end of the short pipe 130 and the socket 122 of the second pipe member 120 receives the other end of the short pipe 130. As a result, the bent gutter pipe 100 has a parting line 140 in the third straight pipe section 14.

[0029] The method for fastening the sockets 112 and 122 to the short pipe 130 is not particularly limited, and may be, for example, a method of bonding them with an adhesive. Examples of the adhesive include commercially available pipe joint adhesives, such as Eslon Adhesive No. 73S (manufactured by Sekisui Chemical Co., Ltd.). The joining work using the short pipe 130 of the first pipe member 110 and the second pipe member 120 is preferably performed in advance at a factory rather than at a construction site. By performing the joining work in advance at a factory, it is easier to prevent the adhesive from spilling out of the joint and the pipe axes from becoming misaligned.

[0030] In the bent pipe for rain gutter 100, the length of the portion of the first pipe member 110 that forms part of the third straight pipe section 14 and the length of the portion of the second pipe member 120 that forms the remainder of the third straight pipe section 14 are equal, making the first pipe member 110 and the second pipe member 120 equal in length. The parting line 140 is located at the center of the third straight pipe section 14 in the direction of the axis O3, i.e., the center of the bent pipe for rain gutter 100. A bent pipe for rain gutter 100 that is arranged at an angle is easily visible from the ground. Therefore, in the present invention, from the viewpoint of excellent aesthetics, an embodiment in which the first pipe member 110 and the second pipe member 120 are equal in length and the parting line 140 is located in the center, as in the bent pipe for rain gutter 100.

[0031] As described above, in the bent pipe for gutter 100, the first straight pipe section 10, the second straight pipe section 12, and the third straight pipe section 14 are connected so that the axis O1 of the first straight pipe section 10 intersects with the axis O3 of the third straight pipe section 14, and the axis O2 of the second straight pipe section 12 intersects with the axis O3 of the third straight pipe section 14. The bent pipe for gutter 100 has a sharp appearance because the straight pipes are connected and bent to form angles at the boundaries between the first straight pipe section 10 and the third straight pipe section 14 and at the boundaries between the second straight pipe section 12 and the third straight pipe section 14. Furthermore, the bent pipe for gutter 100 has no steps at the boundaries between the first straight pipe section 10 and the third straight pipe section 14 and at the boundaries between the second straight pipe section 12 and the third straight pipe section 14. In this way, the curved pipe for rain gutter 100 can easily give a sharp impression and has excellent design.

[0032] Second Embodiment 3, the curved pipe for rain gutter 200 according to the second embodiment is formed by connecting a first pipe member 110A and a second pipe member 120A. The curved pipe for rain gutter 200 is similar to the curved pipe for rain gutter 100, except that the first pipe member 110A and the second pipe member 120A are connected without using a short pipe 130. The same parts of the curved pipe for rain gutter 200 as those of the curved pipe for rain gutter 100 are designated by the same reference numerals, and their explanation will be omitted. The curved pipe for a rain gutter 200 can be used by connecting a vertical pipe or a horizontal pipe to the first receiving portion 16 and the second receiving portion 18, respectively.

[0033] The first pipe member 110A is a bent pipe member having a first straight pipe section 10 and a part of the third straight pipe section 14 on the first straight pipe section 10 side. The first pipe member 110A has an insertion port 114 at the pipe end on the side forming part of the third straight pipe section 14.

[0034] The second pipe member 120A is a bent pipe member having a second straight pipe section 12 and a remaining portion of the third straight pipe section 14 on the second straight pipe section 12 side. The second pipe member 120A has a receiving port 122 at the pipe end on the side forming the remaining portion of the third straight pipe section 14, which receives the insertion port 114 of the first pipe member 110A.

[0035] The socket 122 of the second pipe member 120A receives the insertion port 114 of the first pipe member 110A, thereby connecting the first pipe member 110A and the second pipe member 120A. As a result, the bent gutter pipe 200 has a parting line 140 in the third straight pipe section 14.

[0036] In the curved gutter pipe 200, the length of the portion of the first pipe member 110 that forms part of the third straight pipe section 14 and the length of the portion of the second pipe member 120 that forms the remainder of the third straight pipe section 14 are equal, making the first pipe member 110 and the second pipe member 120 equal in length. The parting line 140 is located at the center of the third straight pipe section 14 in the direction of the axis O3, i.e., the center of the curved gutter pipe 200. A curved gutter pipe 200 that is arranged at an angle is easily visible from the ground. Therefore, in the present invention, from the viewpoint of excellent aesthetics, an embodiment in which the first pipe member 110 and the second pipe member 120 are equal in length and the parting line 140 is located in the center, as in the curved gutter pipe 200.

[0037] The method for fixing the insertion port 114 and the receiving port 122 is not particularly limited, and may be, for example, a method of bonding them together using an adhesive. Examples of the adhesive include the same adhesives as those exemplified in the first embodiment.

[0038] As described above, in the bent pipe for gutter 200, the first straight pipe section 10, the second straight pipe section 12, and the third straight pipe section 14 are connected so that the axis O1 of the first straight pipe section 10 intersects with the axis O3 of the third straight pipe section 14, and the axis O2 of the second straight pipe section 12 intersects with the axis O3 of the third straight pipe section 14. The bent pipe for gutter 200 has a sharp appearance because the straight pipes are connected and bent to form angles at the boundary between the first straight pipe section 10 and the third straight pipe section 14 and at the boundary between the second straight pipe section 12 and the third straight pipe section 14. Furthermore, the bent pipe for gutter 200 has no steps at the boundary between the first straight pipe section 10 and the third straight pipe section 14 and at the boundary between the second straight pipe section 12 and the third straight pipe section 14. In this way, the curved pipe for rain gutter 200 can easily give a sharp impression and has excellent design.

[0039] Third Embodiment The curved pipe for a rain gutter of the present invention is not limited to an embodiment in which the first pipe member and the second pipe member have equal lengths and the parting line is located in the center. 4 and 5, the curved pipe for a rain gutter 300 of the third embodiment is formed by connecting a first pipe member 110B and a second pipe member 120A. The curved pipe for a rain gutter 300 is similar to the curved pipe for a rain gutter 200 except that the curved pipe for a rain gutter 300 includes a first pipe member 110B instead of the first pipe member 110A.

[0040] The first pipe member 110B has the same configuration as the first pipe member 110A, except that the insertion port 114 extends from the boundary on the minor angle side between the first straight pipe section 10 and the third straight pipe section 14 in a front view. Thus, the first pipe member 110B is shorter than the first pipe member 110A. Therefore, in the bent pipe for gutter 300, the third straight pipe section 14 is shorter than in the bent pipe for gutter 200, and the parting line 140 is located closer to the first straight pipe section 10.

[0041] The curved pipe for a rain gutter 300 is advantageous in that it has a more compact shape than the curved pipe for a rain gutter 200. The curved pipe for a rain gutter 200 is preferable to the curved pipe for a rain gutter 300 in that the parting line 140 is located in the center and has an excellent aesthetic appearance.

[0042] <Siphon gutter system> An example of a siphon gutter system using the curved gutter pipe of the present invention will be described below. As shown in FIG. 6, the siphon gutter system 500 includes an eaves gutter 510, a curved gutter pipe 100A, a nominal gutter 512, a curved gutter pipe 100B, a downspout 514, and a siphon generating unit 518.

[0043] The eaves gutter 510 is fixed under the eaves of a building (not shown) so that the drainage gradient is approximately 1 / 100 (1%) toward the siphon generation unit 518. In the siphon gutter system 500, the downstream side of the eaves gutter 510 is connected to the first receiving port 16 of the curved gutter pipe 100A. The second receiving port 18 of the curved gutter pipe 100A is connected to the upstream end of the call gutter 512. The downstream end of the call gutter 512 is connected to the first receiving port 16 of the curved gutter pipe 100B. The second receiving port 18 of the curved gutter pipe 100B is connected to the upstream end of the downspout 514.

[0044] A water collection port 516 is formed at the bottom of the eaves gutter 510 on the side to which the curved gutter pipe 100A is connected. A siphon generating unit 518 for generating a siphon phenomenon is provided in the water collection port 516. The siphon generating unit 518 is not particularly limited, and for example, a known siphon drain member can be used. The siphon generating unit 518 preferably includes a lid member that covers the water collection port 516.

[0045] A straight pipe-shaped connecting portion 520 extending downward from the water collection port 516 of the eaves gutter 510 is received in the first receiving port portion 16 of the curved gutter pipe 100A, thereby connecting the eaves gutter 510 and the curved gutter pipe 100A. The curved pipe for rain gutter 100A and the curved pipe for rain gutter 100B are the curved pipe for rain gutter of the present invention described above, and for example, the curved pipe for rain gutter 100 can be used.

[0046] The rain gutter 512 is a straight pipe that horizontally carries rainwater that has flowed down the curved rain gutter pipe 100A. The downspout 514 is a straight pipe that vertically draws rainwater that has flowed down the curved pipe for rain gutter 100B. The downstream end of downspout 514 is connected to the ground G and to a known water collection basin (drainage mechanism) 580 buried underground. Water collection basin 580 is connected to a drainage structure such as a sewer pipe 584 via a connecting pipe 582.

[0047] In the siphon gutter system 500, the curved gutter pipes 100A and 100B are easily visible from the ground, but the use of curved gutter pipes of the present invention such as the curved gutter pipe 100 provides an aesthetically pleasing appearance.

[0048] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. Within the spirit of the present invention, the components in the above-described embodiment can be replaced with well-known components as appropriate, and the above-described modifications can be combined as appropriate. [Explanation of symbols]

[0049] 10...first straight pipe section, 10a, 10b...ridge line, 11a, 11b...outer edge, 12...second straight pipe section, 12a, 12b...ridge line, 13a, 13b...outer edge, 14...third straight pipe section, 14a, 14b...ridge line, 16...first socket section, 18...second socket section, O1...axis line, O2...axis line, O3...axis line, 100, 100A, 100B...bent pipe for gutter, 110, 110A, 110 B...first pipe member, 112...receiving port, 114...outlet, 120, 120A...second pipe member, 122...receiving port, 200, 300...bent pipe for gutter, 500...siphon gutter system, 510...eaves gutter, 512...call gutter, 514...downspout, 516...water collection port, 518...siphon generating part, 520...connecting part, 580...water collection manhole, 582...connecting pipe, 584...sewer pipe.

Claims

1. A first straight pipe section having a first receiving section on one side, A second straight pipe section having a second socket on one side, A third straight pipe section is provided, with one end connected to the side of the first straight pipe section opposite to the first socket section, and the other end connected to the side of the second straight pipe section opposite to the second socket section. The axis of the first straight pipe section and the axis of the third straight pipe section intersect, and the axis of the second straight pipe section and the axis of the third straight pipe section intersect, The outer edge on the less-angled side of the intersection of the axis of the first straight pipe section and the axis of the third straight pipe section is formed in a bent shape. The outer edge on the less-angled side of the intersection point between the axis of the second straight pipe section and the axis of the third straight pipe section is formed in a bent shape. A curved pipe for a rain gutter, wherein there are no steps on the inner surface of the portion of the first straight pipe section other than the first socket, the third straight pipe section, and the portion of the second straight pipe section other than the second socket.

2. The curved pipe for a rain gutter according to Claim 1, wherein there is no step on the outer surface of the boundary between the first straight pipe section and the third straight pipe section, and on the outer surface of the boundary between the second straight pipe section and the third straight pipe section.

3. A first pipe member is formed by bending the first straight pipe section and a part of the third straight pipe section on the side of the first straight pipe section, A second pipe member is formed by bending the second straight pipe section and the remaining portion of the third straight pipe section on the second straight pipe section side. The curved pipe for a rain gutter according to claim 1 or 2, wherein neither the outer surface of the boundary between the first straight pipe section and the third straight pipe section nor the boundary between the second straight pipe section and the third straight pipe section has a dividing line.

4. A dividing line is formed in the third straight pipe section by connecting the first pipe member and the second pipe member. A curved pipe for a rain gutter according to any one of claims 1 to 3.

5. The curved pipe for a rain gutter according to any one of claims 1 to 4, wherein the inner diameter of the first socket portion is larger than the inner diameter of the portion of the first straight pipe portion other than the first socket portion.

6. The curved pipe for a rain gutter according to any one of claims 1 to 5, wherein the angle between the axis of the first straight pipe section and the axis of the second straight pipe section is 90° or more and 92° or less.

7. A rain gutter system comprising a curved pipe for rain gutters according to any one of claims 1 to 6, Water collection point and The curved pipe for the rain gutter connected to the water collection port, A rain gutter system comprising a downpipe connected to the downstream side of the aforementioned curved pipe for rain gutters.

8. The rain gutter system according to claim 7, further comprising a siphon generating unit for generating a siphon phenomenon.

9. A building having the rain gutter system according to claim 7 or 8 installed.

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