JP7131973B2 - eaves gutter structures and buildings - Google Patents

Description

The present invention relates to eaves gutter structures and buildings.

Conventionally, there has been proposed an eaves gutter structure that prevents water from overflowing from the eaves gutter during heavy rain (see, for example, Patent Document 1).
In the conventional eaves gutter structure described in Patent Document 1, in addition to the eaves gutter provided at the eaves of the building, an outer peripheral pipe is provided at the boundary between each floor of the building, and the eaves gutter and the outer peripheral pipe are provided. A plurality of upper downspouts communicating with each other and lower downspouts suspended from the outer peripheral pipe are provided.
Therefore, in this prior art, it is possible to temporarily retain water in the outer pipe and the upper downspout, and to suppress overflow from the eaves gutter.

JP 2009-108518 A

However, even in the above-described conventional eaves gutter structure, overflow from the eaves gutter occurs when the drainage capacity of the upper downspout hanging from the eaves gutter is exceeded. In particular, when the opening of the upper downpipe is clogged with dead leaves and the like, and the drainage capacity is reduced, overflow is likely to occur.
When the eaves are provided below the eaves gutters, rainwater overflowing from the eaves gutters floods the inside of the eaves. Hateful.

On the other hand, in order to improve the drainage performance, the number of downspouts must be increased, which leads to an increase in cost and limits the degree of freedom in exterior design.

The present disclosure focuses on the above problems, and can suppress overflow from the eaves gutters without increasing the number of downspouts, suppress flooding in the eaves, and notify in advance of a state where overflow is likely to occur. To provide an eaves gutter structure and a building capable of

The eaves gutter structure of the present disclosure is
an eaves gutter installed along the eaves of a building and draining water through the downpipe;
and an eaves ceiling on the back side of the eaves at a position below the eaves gutter,
An overflow gutter having a drop port above the bottom surface of the eaves gutter and a drain port on the lower surface of the eaves is provided,
The overflow gutter includes an upper vertical pipe attached to the eaves gutter and a lower vertical pipe attached to the eaves ceiling, which are separated vertically,
The upper end portion of the lower vertical pipe is enlarged in diameter to be larger in diameter than the lower end portion of the upper vertical pipe,
the lower end of the upper vertical pipe is inserted into the upper end of the lower vertical pipe with a gap in the circumferential direction;
The overflow gutter is provided above the water level of the eaves gutter,
An eaves gutter structure in which a lid member is provided on the upper part of the upper vertical pipe of the overflow gutter, covering the top of the drop opening and forming a flow path to the drop opening between the overflow gutter and the overflow gutter. and
Also, the building of the present disclosure includes the eaves gutter structure described above.

According to the eaves gutter structure of the present disclosure, when the water level in the eaves gutter rises above the outlet of the overflow gutter, the eaves gutter structure of the present disclosure drains water from the drain outlet of the eaves ceiling via the overflow gutter, causing overflow from the eaves gutter. can be suppressed.
Moreover, since the overflow gutter can be provided between the eaves gutter and the eaves ceiling, it can be formed at a lower cost than when a downpipe is provided.
In addition, when overflow is likely to occur due to a drop in the drainage performance of the downpipe due to clogging with garbage, etc., the overflow gutter is used to drain water from the eaves outlet to notify residents before an overflow occurs. can let
The overflow gutter has an upper vertical pipe attached to the eaves gutter and a lower vertical pipe attached to the eaves, separated vertically, and the upper end of the lower vertical pipe is expanded in diameter. , the lower end of the upper vertical pipe is formed to have a larger diameter than the lower end of the upper vertical pipe, and the lower end of the upper vertical pipe is inserted into the upper end of the lower vertical pipe with a gap in the circumferential direction. As a result, misalignment in the mounting position in the horizontal direction and the axial direction can be tolerated, and workability is excellent, and water leakage is less likely to occur.
The overflow gutter is provided above the water level of the eaves gutter. Therefore, it becomes difficult for dust to accumulate, and drainage performance can be ensured.
A lid member is provided on the upper portion of the upper vertical pipe of the overflow gutter to cover the top of the drop opening and form a flow path to the drop opening between the overflow gutter and the overflow gutter. Therefore, it is possible to prevent direct intrusion of dust and secure drainage performance.

It is an enlarged cross-sectional view of the eaves portion of the building H to which the eaves gutter structure of the embodiment is applied. It is a figure which shows the principal part of the eaves gutter structure of embodiment, and is an arrow view which shows the state seen from arrow Y2 direction of FIG. Fig. 2 is a plan view schematically showing the edge of the eaves of a building H to which the eaves gutter structure of the embodiment is applied; It is a cross-sectional view showing the main part of the eaves gutter structure of the embodiment. It is a perspective view which shows the principal part of the eaves gutter structure of embodiment. It is a perspective view showing the tubular body 212 of the upper vertical pipe 210 of the overflow gutter 200 in the eaves gutter structure of the embodiment. It is a perspective view showing the base member 211 of the upper vertical pipe 210 of the overflow gutter 200 in the eaves gutter structure of the embodiment. It is a side view which shows the lower vertical pipe 220 of the overflow gutter 200 in the eaves gutter structure of embodiment. Fig. 10 is a perspective view showing a drain member 230 of the overflow gutter 200 in the eaves gutter structure of the embodiment;

Hereinafter, embodiments of the eaves gutter structure and building of the present disclosure will be described.
(Embodiment 1)
The eaves gutter structure A of Embodiment 1 and the building H provided with this eaves gutter structure A will be described in detail with reference to the drawings.

FIG. 1 is an enlarged sectional view of the eaves portion of the building H. FIG.
This building H is a building having an eaves gutter 10 at the eaves of the roof L, that is, at the edge of the roof L on the water side.
Here, first, the configuration of the building H will be described.
The building H can be a building in general, but a unit building is exemplified here.
This unit building is constructed so that the building H can be constructed in a short period of time by transporting the building units 20 manufactured in advance to the construction site and assembling them at the construction site. There are two types of unit buildings: steel-framed units and wood-based units. Here, a steel-framed unit building is used.

The building unit 20 connects the upper ends of four pillars (not shown) in a rectangular shape with four ceiling beams 21, and connects the lower ends of the four pillars (not shown) with four floors. It has a unit frame (not shown) with a box rigid-frame structure that is connected in a rectangular shape with beams (not shown). An exterior wall material 22 forming a wall surface is attached to the outside of the unit frame.

The building unit 20 shown in FIG. 1 is located on the top floor of the building H, and roof materials 24 forming a roof L are attached via fixtures 23 attached to the top of ceiling beams 21 .

The building H, which is a unit building, can form various types of buildings such as a detached house and a collective housing. Here, a collective housing is shown as an example.
FIG. 3 shows the arrangement of the building units 20 on the top floor of the building H. The building units 20 (e) forming the entrance space E are sandwiched between the building units 20 (e) forming the first dwelling space S1. 1) and a building unit 20(2) forming a second living space S2. FIG. 1 shows the eaves of the roof L installed on these building units 20(e), 20(1), 20(2). In addition, the arrow WL in FIG. 3 indicates the direction of the roof L under water.

That is, the roof material 24 described above is slanted downward toward the eaves, and is slanted so that the left direction in FIG. 1 is under water. The tip of the roofing material 24 protrudes in the underwater direction from the building unit 20 to form an eave. Further, in Embodiment 1, a corrugated folded plate is used as the roof material 24 as shown in FIG.

A canopy arm 25 is attached to the side surface of the ceiling beam 21 on the underwater side of the building unit 20 so as to protrude outward from the building H, that is, in a direction orthogonal to the outer wall material 22 . A plurality of eaves arms 25 are attached at intervals in the extending direction of the ceiling beam 21 .

The eaves gutter 10 is installed on the upper surface of the eaves arm 25 using gutter receiving fittings 25a. The gutter receiving fitting 25a is formed in a U shape so as to surround the eaves gutter 10, and is fixed to the eaves arm 25 with a fixing member such as a screw.

In addition, the eaves gutter 10 and the eaves of the roof L are covered with a parapet 30 on the horizontal outer side.
The parapet 30 is supported by a plate-shaped parapet reinforcing member 31 attached to the tip of the eaves arm 25 . The parapet 30 is composed of three members, an upper member 30a, an intermediate member 30b, and a lower member 30c, which are fixed to the parapet reinforcing member 31 by fixing members such as screws.

Further, an eaves ceiling 40 is provided in the space between the lower part of the parapet 30, which is the back side of the eaves, and the exterior wall material 22 of the building unit 20, and covers the eaves gutter 10 and the eaves arm 25 from below.
The eaves 40 is a plate made of resin such as vinyl chloride, and is supported by a pair of eaves support members 41 screwed to the lower surface of the eaves arm 25 via brackets 41b, 41b.

On the other hand, a parapet cover 50 is provided between the upper part of the parapet 30 and the roof material 24 . As shown in FIG. 2, the parapet cover 50 has a vertical wall portion 51 erected at a portion of a concave portion 24b between two convex portions 24a of the roof material 24 which are convex upward. have. The vertical wall portion 51 is provided with a gap and an opening 51a between the roofing material 24 and the roofing material 24 so as to allow water flowing through the roofing material 24 to pass through but to block dust 60 such as dead leaves.

(Eaves gutter structure)
Next, the eaves gutter structure of Embodiment 1 will be described.
The eaves gutter structure is composed of an eaves gutter 10, a downspout 100, and an overflow gutter 200, as shown in the schematic diagram of FIG. In FIG. 3, the position of the outlet of the downpipe 100 is indicated by a triangle, and the position of the outlet 213 of the overflow gutter 200 is indicated by a black circle. These triangles and black circles do not represent actual shapes. .

The eaves gutter 10 is arranged along the eaves of the roof L, and is made of resin or metal and has raised portions 12 and 13 on the eaves edge side and the eaves base side of the bottom plate 11, respectively, as shown in FIGS. It is formed in a U-shaped cross section.
The eaves gutter 10 is attached to the eaves arm 25 by the gutter receiving fitting 25a as described above.

Further, the eaves gutter 10 is inclined downward toward the downpipe 100.例文帳に追加That is, the arrow DS shown in FIG. 3 indicates the inclination of the eaves gutter 10, and the downspout 100 is provided under water at the lowest position of this inclination. On the other hand, an overflow gutter 200 is provided above the water, which is the highest position of this slope.
The downspout 100 is a well-known one, and extends from the eaves gutter 10 along the outer wall of the building H to the ground.

<Overflow gutter>
Next, the overflow gutter 200 that characterizes the first embodiment will be described.
As shown in FIG. 1, this overflow gutter 200 is lower than the raised parts 12 and 13 of the eaves gutter 10 and has a drop opening 213 at a position above the bottom plate (bottom surface) 11. 234. That is, the overflow gutter 200 drains water from the drain port 234 of the eaves 40 when the water level of the eaves gutter 10 exceeds the height (h1) of the drop port 213 .

The overflow gutter 200 includes an upper vertical pipe 210, a lower vertical pipe 220, a drain member 230, and a lid member 240, as shown in FIGS.

The upper vertical pipe 210 is a circular pipe provided through the bottom plate 11 of the eaves gutter 10, and includes a base member 211 shown in FIG. 6B and a tubular body 212 shown in FIG. 6A.
As shown in FIGS. 4 and 6B, the base member 211 has a relatively large-diameter large-diameter tube portion 211a and a relatively small-diameter small-diameter tube portion 211b connected vertically. An annular flange 211f is formed on the outer periphery of the upper end so as to protrude in the outer diameter direction. Furthermore, as shown in FIG. 6B, a female thread 211d is formed on the inner periphery 211c of the large diameter tube portion 211a.

As shown in FIG. 6A, the tubular body 212 includes a circular tubular main body 212a and an annular flange 212f provided at the lower portion of the main body 212a and extending in the outer diameter direction.
The main body 212a has an upper male screw 212b formed on the outer circumference of the upper end thereof to engage with a female screw 243 of the cover member 240 described later, and a lower outer circumference of the lower end to engage with the female screw 211d of the base member 211. A male thread 212d is formed.
Further, a plurality of openings 213a penetrating in the radial direction are provided in parallel in the circumferential direction in the upper portion of the main body 212a. Therefore, when the water level of the eaves gutter 10 rises to the height h1 in FIG. The vertical dimension of the opening 213a is larger than the horizontal dimension of the gap 244 described later, for example, 15 mm or more, and the circumferential dimension is several centimeters.

Further, the upper vertical pipe 210 is fixed to the bottom plate 11 of the eaves gutter 10, and this fixing is performed by engaging the female screw 211d of the base member 211 and the lower male screw 212d of the tubular body 212. It is

That is, the base member 211 is arranged below the opening formed in the bottom plate 11, the main body 212a of the tubular body 212 is inserted into the opening of the bottom plate 11, and the two are relatively rotated to rotate the female screw 211d of the base member 211 and the tubular body. 212 is engaged with the lower male screw 212d.
As a result, the base member 211 and the tubular member 212 move along the axial direction, and as shown in FIG. An upper vertical pipe 210 is fixed to the bottom plate 11 of the eaves gutter 10 . Moreover, since the female screw 211d and the lower male screw 212d are fixed by meshing with each other in this way, a fastening member or the like does not penetrate through the bottom plate 11, and it is easy to ensure sealing performance.

The small-diameter tube portion 211 b of the base member 211 of the upper vertical tube 210 described above is inserted into the upper portion of the lower vertical tube 220 .
The lower vertical pipe 220 is connected to a drain member 230 and fixed to the eaves 44 .
As shown in FIG. 7A, the lower vertical pipe 220 includes a tubular pipe body 221, an annular flange 222 extending radially from the lower end of the pipe body 221, and an annular flange 222 extending downward from the flange 222. and a connection tube portion 223 that is connected.

The pipe main body 221 has an enlarged upper portion and is formed to have a larger diameter than the small diameter pipe portion 211b of the base member 211 of the upper vertical pipe 210 as described above.
A male thread 224 is formed on the outer periphery of the connection tube portion 223 .

As shown in FIG. 7B, the drain member 230 has a tubular portion 231, a flange 232 provided at the upper end of the tubular portion 231 and protruding in the radial direction in an annular shape, and a lower portion of the tubular portion 231. and a drain port 234 .
A female thread 235 is formed on the inner periphery of the tubular portion 231 so as to engage with the male thread 224 formed on the outer periphery of the connecting tubular portion 223 of the pipe body 221 .
Moreover, the drain port 234 has a plurality of side openings 234a for directing the drainage in the radial direction with respect to the direction along the central axis, and a plurality of lower openings 234b for directing the drainage downward.

That is, when the overflow gutter 200 drains water, the drain member 230 drains the water from the side opening 234a so that the water flies horizontally to some extent, thereby notifying that the water is being drained. there is
On the other hand, by providing the lower opening 234b, the flow rate at the side opening 234a is restricted so that the waste water is prevented from being scattered over a wide area.

The lower vertical pipe 220 and the drain member 230 are fixed to the soffit 40 as shown in FIG. The fixing structure is also the same as the fixing of the upper vertical pipe 210 to the eaves gutter 10 described above. (not shown)) and is inserted into the cylindrical portion 231 of the drain member 230 arranged below the eaves 40 . Then, the lower vertical pipe 220 and the drain member 230 are relatively rotated to engage the male screw 224 and the female screw 235, and the lower vertical pipe 220 and the drain member are connected with the eaves 40 sandwiched between the flanges 222 and 232. 230 is fixed to the soffit 40 .

Although the lower vertical pipe 220 and the upper vertical pipe 210 are separate bodies, since the upper part of the pipe main body 221 is formed to have a larger diameter than the small diameter pipe portion 211b, the fixed position of both in the horizontal direction is shifted. Even if there is, the deviation of the radius difference is permissible. Further, since the structure is such that the upper vertical pipe 210 is inserted into the lower vertical pipe 220, even if there is a misalignment in the fixing position of both in the axial direction, it can be absorbed by the amount of insertion.

A cover member 240 is fixed above the overflow gutter 200 , that is, above the drop opening 213 at the upper end of the tubular body 212 of the upper vertical pipe 210 .
The lid member 240 includes a lid plate portion 241 , a pipe portion 242 and a female screw 243 .
The cover plate portion 241 covers the upwardly facing opening of the upper end of the upper vertical pipe 210 and is formed in a disc shape having a diameter slightly larger than the outer diameter of the upper vertical pipe 210 .

The pipe portion 242 is formed in an annular shape with a flange extending axially (downward) from the outer circumference of the cover plate portion 241 and has a gap 244 between itself and the outer circumference of the tubular body 212 . The gap 244 has a horizontal dimension of several mm to 1 cm. This is to prevent dust 60 such as dead leaves that is larger than the gap 244 from entering.

(Action of Embodiment)
The operation of the eaves gutter structure A of Embodiment 1 will be described below.
When it rains on the roof L of the building H, the rain flows along the slope of the roof material 24 in the direction of the arrow WL in FIG.
At this time, among the garbage 60 such as dead leaves, a somewhat large one is dammed up by the vertical wall portion 51 of the parapet cover 50 to prevent it from entering the eaves gutter 10, as shown in FIG.

Rainwater that has flowed into the eaves gutter 10 flows along the slope of the eaves gutter 10 from above water to below water as indicated by the arrow DS in FIG.
As described above, relatively large debris 60 such as dead leaves is prevented from entering the eaves gutter 10 by the parapet cover 50 as described above. It may gather at the point indicated by △) and block the opening.

In this way, when the outlet of the downspout 100 is blocked and the drainage capacity of the downspout 100 is lowered, the water level of the eaves gutter 10 rises, for example, when there is a large amount of rainfall.
Then, when the water level above the eaves gutter 10 where the overflow gutter 200 is provided rises above the height h1 of the lower end of the opening 213a, the rainwater that flows beyond that level is drained out of the eaves gutter 10 by the overflow gutter 200. be. Therefore, it is possible to suppress the rise in the water level of the eaves gutter 10 and prevent the water from exceeding the height ht of the raised portion 13 and overflowing into the eaves 40 .

When the overflow gutter 200 drains water, the water is drained from the drain port 234 of the drain member 230 provided in the eaves 40 , that is, from the vicinity of the lower surface of the eaves 40 . Since such drainage from the drain member 230 of the eaves 40 does not normally occur, the resident recognizes the abnormality of the eaves gutter 10, that is, clogging of the downpipe 100 by the drainage from the drain member 230. be able to.

In particular, in Embodiment 1, the overflow gutter 200 is configured as shown in FIG.
Since it is arranged in the vicinity of the entrance space E, it is easy for the residents who enter and exit the residence spaces S1 and S2 to recognize it when they go out or when they come home.

Furthermore, since the drain port 234 of the drain member 230 is provided with the side opening 234a, the water scatters in the horizontal direction, and the residents can easily recognize the drainage by the overflow gutter 200 as compared with the case where only the lower opening 234b is provided.

By the way, in order to prevent the eaves gutter 10 from overflowing due to the drainage of the overflow gutter 200, the drainage capacity, which is the sum of the drainage capacity of the downpipe 100 and the drainage capacity of the overflow gutter 200, is set to 200 mm/h or more. set.
For example, if the downpipe 100 has a drainage capacity of 190 mm/h, the overflow gutter 200 has a drainage capacity of 50 mm/h or more. A rainfall amount of 50 mm/h is a level at which disasters such as landslides occur. Even if it is clogged, if it is normal rainfall, it can prevent overflow.

(Effect of Embodiment)
The effects of the eaves gutter structure A and the building H of Embodiment 1 are listed below.
(1) The eaves gutter structure A of Embodiment 1 is
an eaves gutter 10 attached along the eaves of the building H and draining water through the downpipe 100;
An eaves gutter structure comprising:
The eaves gutter structure is provided with an overflow gutter 200 having a drop port 213 (opening 213a) above a bottom plate 11 forming the bottom surface of the eaves gutter 10 and a drain port 234 on the lower surface of the eaves ceiling 40. - 特許庁.
Therefore, when the water level of the eaves gutter 10 rises, the water is drained from the drain port 234 of the eaves 40 through the overflow gutter 200, thereby suppressing the overflow from the eaves gutter 10 and suppressing the flooding of the eaves 40. .
Since the overflow gutter 200 can be provided between the eaves gutter 10 and the eaves ceiling 40, it can be formed at a lower cost and the appearance quality can be improved as compared with the case where many downpipes 100 are provided.
In addition, the drainage from the drain port 234 arranged in the eaves 40 can inform the residents that the drainage performance of the downpipe 100 has deteriorated due to clogging with garbage or the like before overflow occurs.
In particular, in Embodiment 1, the drain port 234 is provided with the side opening 234a and the lower opening 234b. As a result, by causing the drainage from the side opening 234a to scatter in the horizontal direction, it is possible to reliably inform the residents that the drainage from the drainage port 234 has occurred. On the other hand, by providing the lower opening 234b, it is possible to suppress excessive scattering in the horizontal direction from the side opening 234a, thereby suppressing splashing of the drainage to neighboring land.

(2) The eaves gutter structure A of Embodiment 1 is
The overflow gutter 200 comprises an upper vertical pipe 210 attached to the eaves gutter 10 and a lower vertical pipe 220 attached to the eaves 40,
The upper end portion of the lower vertical pipe 220 is formed to have a larger diameter than the lower end portion of the upper vertical pipe 210,
A lower end portion of the upper vertical pipe 210 is inserted into an upper end portion of the lower vertical pipe 220 .
Therefore, even if the mounting positions of the upper vertical pipe 210 attached to the eaves gutter 10 and the lower vertical pipe 220 attached to the eaves 40 are deviated in the horizontal direction and the axial direction, the difference in radius between the two and the insertion allowance Displacement can be tolerated, workability is excellent, and water leakage is less likely to occur.
In addition, a cover or the like may be provided to cover the gap between the upper end portion of the lower vertical pipe 220 and the lower end portion of the upper vertical pipe 210 to further enhance water leakage suppression performance.

(3) The eaves gutter structure A of Embodiment 1 is
The lower vertical pipe 220 is connected to a drain member 230 having an outlet 234 and is fixed to the eaves 40 .
Therefore, compared with the case where the drain port is directly provided in the lower vertical pipe 220 and opened in the eaves 40, it is unnecessary to adjust the position of the drain port, that is, the adjustment of the mounting position of the lower vertical pipe 220. It has excellent workability and excellent appearance quality.

(4) The eaves gutter structure A of Embodiment 1 is
The overflow gutter 200 is provided above the water of the eaves gutter 10. - 特許庁
Therefore, when garbage 60 such as dry leaves enters the eaves gutter 10, the garbage 60 easily flows under water and is less likely to accumulate around the overflow gutter 200, so that the drainage performance of the overflow gutter 200 can be ensured.

(5) The eaves gutter structure A of Embodiment 1 is
A lid member 240 is provided on the top of the overflow trough 200 to cover the top of the trough 213 and form a gap 244 as a flow path to the trough 213 between the overflow trough 200 and the overflow trough 200 .
Therefore, the lid member 240 can prevent the dirt 60 such as dead leaves from directly entering the outlet 213 of the overflow gutter 200, and the drainage capacity of the overflow gutter 200 can be ensured. In addition, the gap 244 can more reliably prevent dust 60 larger than the gap 244 from entering the overflow gutter 200 and clogging the overflow gutter 200 .
Dust 60 smaller than the gap 244 can be discharged to the outside of the eaves gutter 10 by the overflow gutter 200 .
In addition, in Embodiment 1, the dimension of the gap 244 is set to 1 cm or less, and the opening 213a is set to have larger dimensions in the vertical direction and the circumferential direction. . Since the parapet cover 50 prevents dust 60 such as large dead leaves from entering the eaves gutter 10, clogging of the downpipe 100 with dust can be suppressed.

(6) Building H of Embodiment 1 is
Since the eaves gutter structure A is provided, any or all of the effects described in (1) to (5) above can be achieved.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the present invention is not limited to the embodiments, and the present invention may be modified without departing from the gist of the present invention. include.
For example, in the embodiment, an example in which the eaves gutter structure A is provided in the building H, which is a unit building, is shown, but it can also be provided in a building other than the unit building.
Further, in the embodiment, an example of a housing complex is shown as the building H, but it may be applied to a detached house. Therefore, in the embodiment, an example in which the overflow gutter 200 is arranged in the vicinity of the entrance space E is shown, but the present invention is not limited to this. In particular, when the building is a detached house, it is not limited to the entrance space E. In this case, rather than the position of the outer wall, a position such as a veranda or the vicinity of a window, in which the overflow gutter 200 causes drainage, is preferable for residents to notice.

Also, in the embodiment, the overflow gutter is divided into the upper vertical pipe 210 and the lower vertical pipe 220, but the present invention is not limited to this, and these parts may be formed as an integral pipe.
Further, in the embodiment, an example in which the drain port 234 is provided in the drain member 230 is shown, but it may be provided in a pipe body such as the lower vertical pipe 220 . Also, in the embodiment, the drain port 234 has the side opening 234a and the lower opening 234b, but only one of them may be provided.
In addition, in the embodiment, the fixing of the upper vertical pipe 210 to the bottom plate 11 of the eaves gutter 10 and the fixing of the lower vertical pipe 220 and the drain member 230 to the eaves ceiling 40 are performed by engagement of male and female threads. Although examples have been given, these fixing structures are not so limited.
For example, it may be fixed using an adhesive or a fastening member.

10: Eaves gutters 11: Bottom plate (bottom)
40: eaves 60: garbage 100: downspout 200: overflow gutter 210: upper vertical pipe 230: drain member 234: drain port 240: lid member 244: gap A: eaves gutter structure H: building

Claims (3)

an eaves gutter installed along the eaves of a building and draining water through the downpipe;
and an eaves ceiling on the back side of the eaves at a position below the eaves gutter,
An overflow gutter having a drop port above the bottom surface of the eaves gutter and a drain port on the lower surface of the eaves is provided,
The overflow gutter includes an upper vertical pipe attached to the eaves gutter and a lower vertical pipe attached to the eaves ceiling, which are separated vertically,
The upper end portion of the lower vertical pipe is enlarged in diameter to be larger in diameter than the lower end portion of the upper vertical pipe,
the lower end of the upper vertical pipe is inserted into the upper end of the lower vertical pipe with a gap in the circumferential direction;
The overflow gutter is provided above the water level of the eaves gutter,
An eaves gutter structure in which a lid member is provided on the upper part of the upper vertical pipe of the overflow gutter, covering the top of the drop opening and forming a flow path to the drop opening between the overflow gutter and the overflow gutter. . In the eaves gutter structure according to claim 1,
The eaves gutter structure, wherein the lower vertical pipe is connected to a drain member having the drain port and fixed to the eaves. A building comprising the eaves gutter structure according to claim 1 or 2.

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