JPH108660A - Balcony drainage structure - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To drain rainwater from a floor portion that does not overhang from an outer edge of a lower floor structure of a balcony. SOLUTION: In a drainage structure of a balcony 14 formed on a lower-floor building unit 11, a drainage port 34 is provided below a handrail wall 27 of the balcony 14 to penetrate the handrail wall 27 substantially horizontally. .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a drainage structure for a balcony.

[0002]

2. Description of the Related Art Conventionally, a drainage structure for a balcony is disclosed in Japanese Patent Application Laid-Open No. 63-70752. In this prior art, a balcony is formed on a lower-floor structure, and a drain hole that penetrates substantially vertically is provided at a portion of the balcony floor that overhangs from an outer edge of the lower-floor structure, and is provided on the balcony floor. The accumulated rainwater can be drained.

[0003]

The prior art, however, requires that the balcony have a floor surface that overhangs the outer edge of the lower structure. Therefore, in a balcony having no portion overhanging from the outer edge of the lower floor structure, rainwater cannot be drained using the conventional technology.

[0004] It is an object of the present invention to drain rainwater from a floor portion that does not overhang from an outer edge of a lower structure of a balcony.

[0005]

According to a first aspect of the present invention, in a drainage structure for a balcony formed on a lower floor structure, the handrail wall is penetrated substantially horizontally below a handrail wall of the balcony. A drain port is provided.

According to a second aspect of the present invention, in the first aspect of the present invention, a box gutter is further provided on the floor surface of the balcony, and the drain port serves as a drainage channel for the box gutter. Things.

According to a third aspect of the present invention, in the first or second aspect, the floor surface of the balcony and the box gutter installation recess extend from the floor surface to the box gutter installation recess. The waterproofing is performed by a continuous waterproofing process, and the periphery of the opening of the drain port provided at the lower part of the handrail wall is waterproofed by the waterproofing process.

The present invention described in claim 4 is the first to third aspects of the present invention.
In the present invention according to any one of the above, a lower-floor structure is arranged at least below the drainage port installation portion of the balcony.

The present invention according to claim 5 provides the invention according to claims 1-4.
In the invention according to any one of the above, the balcony is formed by a balcony unit mounted on a lower floor structure.

According to the present invention, the following effects are provided. The drain of the balcony was provided so as to pass through the handrail wall almost horizontally. Therefore, the rainwater accumulated on the floor of the balcony can be drained outward in a substantially horizontal direction from the floor surface of the balcony that is not overhanging from the outer edge of the lower structure of the balcony using the drain port.

[0011] The floor of the balcony and the box gutter installation recess are
Since the floor and the box gutter installation recess are waterproofed by the continuous waterproofing process from the floor surface to the box gutter installation recess, the floor surface and the box gutter installation recess can be completely subjected to rain from outside rainwater. In addition, since the periphery of the opening of the drain port provided at the lower part of the handrail wall is waterproofed by the waterproof treatment, the area around the opening for the drain port at the lower part of the handrail wall can be completely rained from external rainwater. Therefore, even if there is a lower-floor structure living room under the entire floor of the balcony, or at least below the drainage port installation part, it is possible to completely prevent rainwater from entering the lower-floor structure and to allow rainfall to leak into the living room. Can be completely prevented.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic view showing a drainage structure of a balcony, FIG. 2 is a schematic view showing a drainage port below a handrail wall, FIG. 3 is a schematic view showing a box gutter, and FIG. 4 is a unit building. It is a schematic diagram.

As shown in FIG. 4, the unit building 10 is composed of a plurality of building units 11 which are connected left and right and up and down.
It is constructed by mounting a roof unit 12 on an upper floor building unit 11. Then, the unit building 10 of the present embodiment
Is the balcony unit 1 on the lower floor building unit 11
3 to form a balcony 14. The balcony unit 13 has the same planar dimensions as the lower-floor building unit 11 and does not have an overhang portion with respect to the outer edge of the lower-floor building unit 11.

As shown in FIG. 1, the balcony unit 13 has a floor structure 23 comprising a floor beam 21 and a floor beam 22, and a floor joist 24 and a floor plywood 25 are provided on the floor structure 23. Thus, a floor 26 is formed.

As shown in FIG. 1, the balcony unit 13 has a handrail wall 27 erected on the outer edge of the floor structure 23. The handrail wall 27 includes a pillar 28, an inner wall material 29A on the inner surface side of the pillar 28, and an outer wall material 29B on the outer surface side of the pillar 28.

However, the balcony unit 13 has the floor 2
A box gutter installation concave portion 31 is provided between the front edge portion, which is the lowermost end of the downward slope of 6, and the handrail wall 27. Box gutter installation recess 31
Are formed into a plywood 32 supported by the floor structure 23 and a plywood 33 supported by the columns 28 of the handrail wall 27.
0 can be installed.

At this time, as shown in FIG. 2, the balcony unit 13 is provided with a drain port 34 penetrating through the handrail wall 27 substantially horizontally below the handrail wall 27, and the drain port 34 The drainage channel 30A is fitted (FIG. 3).

The floor 26 of the balcony unit 13 and the box gutter installation recess 31 are waterproofed by asphalt roofing 35 continuous from the floor plywood 25 of the floor 26 to the plywood 32, 33 of the box gutter installation recess 31 (see FIG. 1). (Fig. 2). Further, the periphery of the opening of the drain port 34 provided on the handrail wall 27 is waterproofed by a rubber-like waterproof sheet 36 (FIG. 2).

As shown in FIG. 3, the box gutter 30 is provided with an asphalt roofing 35 of the box gutter installation recess 31 described above.
While being placed on the upper side, the drainage channel 30A is inserted and installed in the waterproof sheet 36 of the drainage port 34 described above. Then, on the floor 26 of the balcony unit 13, the floor plywood 25
The floor finishing material 37 is provided on the asphalt roofing 35 provided in the above. Leading edge draining part 3 of floor finishing material 37
7A is extended to the inside of the box gutter 30 and the box gutter 30
A caulking 38 is provided at a portion where the floor finishing material 37 wraps.

The box gutter 30 and the floor finishing material 37 are made of, for example, a PVC steel plate.

Therefore, the construction procedure of the drainage structure in the unit building 10 is as follows. (1) Balcony unit 1 on lower floor building unit 11
3 is installed.

(2) A continuous asphalt roofing 35 is provided over the floor 26 of the balcony unit 13 and the box gutter installation recess 31.

(3) A waterproof sheet 36 is provided on the periphery of the opening of the drain port 34 provided on the handrail wall 27.

(4) The box gutter 30 is placed on the asphalt roofing 35 of the box gutter installation recess 31, and the drain passage 30 A is inserted into the waterproof sheet 36 of the drain port 34.

(5) A floor finishing material 37 is provided on the asphalt roofing 35 of the floor 26. The leading edge draining portion 37A of the floor finishing material 37 wraps around the box gutter 30 via the caulking 38 and extends to the inside of the box gutter 30.

Hereinafter, the operation of the present embodiment will be described. The drain port 34 of the balcony 14 is provided so as to penetrate the handrail wall 27 substantially horizontally. Therefore, the rainwater accumulated on the floor surface of the balcony 14 is drained outward in the substantially horizontal direction using the drain port 34 even from the floor surface portion not overhanging from the outer edge of the lower building unit 11 of the balcony 14. it can.

Since the floor 26 of the balcony 14 and the box gutter installation recess 31 are waterproofed by a continuous waterproofing process from the floor 26 to the box gutter installation recess 31, the floor 26 and the box gutter installation recess 31 are removed. Can be completely rained out of the rainwater. In addition, since the peripheral edge of the opening of the drain port 34 provided at the lower part of the handrail wall 27 is waterproofed, the area around the opening for the drain port 34 at the lower part of the handrail wall 27 can be completely rained from rainwater from the outside. Therefore, the floor 26 of the balcony 14
Of the lower-floor building unit 11 completely, or at least in the case where the living room of the lower-floor building unit 11 exists below the installation part of the drain port 34, completely prevents the intrusion of rainwater into the lower-floor building unit 11 and completely prevents the Can be prevented.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and the design can be changed within a range not departing from the gist of the present invention. The present invention is also included in the present invention. For example, the present invention can also be applied to a configuration in which a lower-floor structure exists only in a part below the floor of a balcony. At this time, by not providing a drainage port immediately below the portion that overhangs the lower floor structure of the balcony, the space below the overhang portion can be used as a space without a drainage path.

[0029]

As described above, according to the present invention, drainage of rainwater can be performed from the floor portion not overhanging from the outer edge of the lower floor structure of the balcony.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a drainage structure of a balcony.

FIG. 2 is a schematic view showing a drain port at a lower part of a handrail wall.

FIG. 3 is a schematic diagram showing a box gutter.

FIG. 4 is a schematic diagram showing a unit building.

[Explanation of symbols]

 11 Lower floor building unit (lower floor structure) 13 Balcony unit 14 Balcony 26 Floor 27 Handrail wall 30 Box gutter 30A Drainage channel 31 Box gutter installation recess 34 Drain outlet 35 Asphalt roofing (waterproofing) 36 Waterproof sheet (waterproofing)

Claims (5)

[Claims] 1. A balcony drainage structure formed on a lower-floor structure, wherein a drainage port is provided below a handrail wall of the balcony so as to extend substantially horizontally through the handrail wall. Drainage structure. 2. The balcony drainage structure according to claim 1, wherein a box gutter is provided on the floor surface of the balcony, and the drainage port serves as a drainage channel for the box gutter. 3. The floor surface of the balcony and the box gutter installation recess are waterproofed by a continuous waterproofing process from the floor surface to the box gutter installation recess, and the periphery of an opening of a drain port provided in a lower part of the handrail wall. The drainage structure for a balcony according to claim 1 or 2, wherein the part is waterproofed by a waterproof treatment. 4. A lower-floor structure is arranged at least below a drain port installation portion of the balcony.
A drainage structure for a balcony according to any one of the above. 5. The drainage structure for a balcony according to claim 1, wherein the balcony is formed by a balcony unit mounted on a lower floor structure.