JP2831526B2 - Drainage structure of outdoor stairs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage structure for an outdoor staircase provided mainly outside a building.

[0002]

2. Description of the Related Art An outdoor staircase provided outside a building is known as a conventional type of such a staircase (Japanese Patent Laid-Open No. Hei 4 (1994)).
216762, JP-A-63-147055, JP-A-63-293249, etc.). It is generally known that a small roof for the stairs is provided above such outdoor stairs so that rainwater does not directly hit the stairs and landings of the outdoor stairs.

The rainwater that falls on the small roof is usually collected by eaves around the small roof, and is a gray drain made of PVC resin as a vertical gutter disposed along the side of the stairs along the vertical direction. The pipe is drained downward.

As a drainage structure for a landing on an outdoor stair, there is known a drainage structure described in Japanese Utility Model Laid-Open Publication No. 56-145737. In this drainage structure, a drainage pipe is embedded in an outer wall below the landing, and the drainage pipe is concealed to improve the appearance quality.

[0005]

However, in such a conventional drainage structure for outdoor stairs, since the gray drainage pipe is disposed so as to be exposed on the side surface of the stairs, the appearance quality is good. It was hard to say. In addition, the construction of the drain pipe requires a separate process, and the construction efficiency is not good.

Further, in the case where the drainage pipe is embedded in the outer wall, it is difficult to use it for a building in which the outer wall is not arranged under the roof of the outdoor stairs. When the outer wall is arranged from under the roof, there is a problem that the periphery of the outdoor stairs is closed, giving an unnecessary feeling of oppression, and deteriorating the appearance quality.

Accordingly, the present invention provides a drainage structure for outdoor stairs that is easy to construct and has good appearance quality.

[0008]

In order to solve the above-mentioned problems, according to the present invention, a protective fence of an outdoor staircase is constituted by a plurality of protective fences, and at least one of the protective fences is provided from a roof. A drainage channel is provided to the ground to form a drainage channel, and the drainage channel is characterized by a drainage structure of an outdoor staircase provided with an inflow portion through which water on the roof portion flows.

[0009]

[Operation] According to this configuration, the drainage channel formed in the protective fence material of the protective fence guides the water on the roof portion that has flowed in from the inlet of the drainage channel to the ground, and drains it. Therefore, it is not necessary to separately provide a downspout, and the appearance quality can be improved.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 to 4 show an embodiment of the present invention.

First, the structure will be described. In the figure, reference numeral 1 denotes an outdoor staircase which is disposed outdoors. The outdoor staircase 1 mainly includes a staircase roof unit 2 having a small staircase roof 2a, and a staircase 3a and a staircase 3a. 2nd floor stair unit 3 with landing 3b
And a first-floor stair unit 4 having a stair portion 4a and a landing portion 4b.

Around the units 2 to 4, a plurality of hollow pipe-shaped protective fence members 5 are arranged along the vertical direction. These protective fences 5 are connected to the protective fences 5 of the units 2 to 4 arranged vertically by connecting portions 6 and the like at the time of disposition, and are connected from the small staircase roof portion 2 a to the ground 7. The protective fence 8 is configured.

Among the protective fences 5 connecting from the roof 2a to the ground 7, the protective fence 5 on the near side at the left end and the protective fence 5 on the back side not shown in FIG. The drainage channels 9, 9 as shown in FIG. Since both fences 5 have substantially the same structure, the configuration will be described using the front fence 5 on the front side.

The drainage passage 9 of the protective fence member 5 is provided with an inflow port 10 through which water on the small staircase roof 2a flows. The inlet 10 mainly includes a side opening 5 a provided on a side surface of the protective fence member 5 and the small staircase 2.
a water collecting plate 11 which is disposed in the vicinity of the side surface of the upright wall 2c, which becomes the lowest portion due to gentle inclination, and which has a pipe connection opening 12 substantially at the center thereof;
By connecting one end to one pipe connection opening 12 and the other end to the side opening 5a, the staircase small roof portion 2
a drain pipe 13 for draining water on the upper surface into the drain passage 9
It is composed of

Further, as shown in FIG. 4, the connecting portion 6 has an insertion opening 6a provided at the lower end of the protective fence member 5 of the unit 2 or 3 located above and the unit 3 or the unit 3 located below. 4 is provided at the upper end of the protective fence member 5 and is formed slightly wider than the insertion opening 6a, and mainly comprises a fitting opening 6b for fitting the insertion opening 6a. When the units 2 to 4 are joined and arranged, the insertion port 6a and the insertion port 6b are partially inserted into the insertion port 6b and fitted. The drainage channel 9 of the upper protective fence member 5 is connected to the drainage channel 9 of the lower protective fence member 5.

According to the drainage structure of the outdoor stairs of this embodiment configured as described above, the rainwater on the small staircase roof 2a is collected in the direction of the water collecting plate 11 by a gentle inclination. Then, the water that has flowed down from the inflow port 10 passes through a drain pipe 13, and from the side opening 5 a, the protective fence material 5.
Flows into the drainage channel 9 formed at the bottom. In the drainage channel 9, this water is guided downward to the ground and drained. For this reason, it is not necessary to separately provide a conventional downspout made of a PVC pipe on the side surface of the outdoor stairs 1, and the appearance quality can be improved.

Moreover, since the drainage channel 9 is formed by using the protective fence material 5 of the protective fence 8, the drainage pipe is buried in the conventional outer wall so as to be invisible from the outside. , Because the outer wall does not need to be provided, the protective fence 8
Drainage can be performed while maintaining a specific ventilation property and daylighting property to create a feeling of openness, and in this respect, the appearance quality can be improved.

Further, according to the drainage structure of the outdoor stairs of this embodiment, when the units 2 to 4 are combined and disposed by the connecting portion 6, the drainage channels 9, 5 of the upper and lower protective fence members 5, 5 are arranged. 9 can be connected simply by inserting the insertion opening 6a into the fitting opening 6b. For this reason, the construction process is further simplified.

In the drainage structure of the outdoor stairs of this embodiment, the drainage of rainwater on the small staircase roof 2a has been described as an example. However, the drainage structure is not particularly limited thereto. Naturally, rainwater may be guided by a rain gutter or the like, and may flow from the inlet 10 to the drainage channel 9 of the protective fence member 5.

Further, in the drainage structure of the outdoor stairs of this embodiment, the drainage channels 9 and 9 are formed by using the hollow interiors of the two protective fences 5 and 5, but the invention is not limited to this. ,
For example, if the drainage channel 9 is formed using at least one of the protective fences 5... Protective fence material 5
, And the shape and size of the drainage channels 9 are not limited to the above embodiment.

[0022]

As described above, according to the present invention, since the drainage channel of the protective fence material drains water on the roof, it is not necessary to separately provide a downspout, and the appearance is reduced. Practically useful effect that the quality can be improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a drainage structure of an outdoor staircase according to an embodiment of the present invention, showing a state in which each unit of the outdoor staircase is disposed.

FIG. 2 is a perspective view showing a drainage structure of an outdoor staircase of the same embodiment, showing the vicinity of an inlet of a small staircase roof portion.

FIG. 3 is a side view showing the drainage structure of the outdoor staircase of the same embodiment and showing the vicinity of the inflow portion of the small staircase portion as viewed from the direction A in FIG. 2;

FIG. 4 is a side view showing a drainage structure of an outdoor staircase of the same embodiment, showing a vicinity of a connecting portion.

[Explanation of symbols]

 1 Outdoor stairs 5 Protective fence material 8 Protective fence 9 Drainage channel 10 Inlet

Claims (1)

(57) [Claims] 1. A protective fence for an outdoor staircase is constituted by a plurality of protective fence materials, and at least one of the protective fence materials includes:
A drainage channel is provided from the roof to the ground to form a drainage channel, and the drainage channel is provided with an inflow portion through which water on the roof portion flows in. Construction.