JP4948947B2 - Stair drainage structure - Google Patents

Description

The present invention relates to a drainage structure of stairs, in particular, accept the rainwater flowing down the riser surfaces of the staircase, it relates to a drainage structure of stairs so that lead to gutter.

  In outdoor stairs and semi-outdoor stairs in apartment buildings, when rainwater falls on the stairs, the rainwater flows down the stairs and flows into the entrance of the dwelling unit. there were.

By the way, in order to cope with this problem, the present applicant has previously proposed a drainage structure for a staircase using a flooring provided with a non-slip projection provided on the tread surface of the staircase (Patent Document 1). And 2).
However, the drainage structure of this staircase is premised on the use of flooring provided with anti-slip projections, and the structure and drainage capacity are limited by the flooring. There is a problem that it cannot be applied when not used.
JP 2004-197316 A Japanese Patent Laid-Open No. 2005-29996

In view of the problems of the conventional staircase drainage structure described above, the present invention can receive rainwater flowing down the staircase's kick-up surface and guide it to the side groove. An object of the present invention is to provide a staircase drainage structure that is not restricted by its structure and drainage capacity and can be provided independently of such a flooring.

In order to achieve the above object, the drainage structure for a staircase according to the present invention has a drainage member for receiving rainwater flowing down the stepped-up surface of the staircase and guiding it to the side groove. In the staircase drainage structure arranged across the width direction, the drainage member includes a vertical part for fixing to the raised surface of the staircase, and a water receiving part, and the water receiving part The upper end portion is formed with a folded portion whose tip is directed to the kick-up surface side .

  In this case, the drainage member can be disposed with a water gradient toward the side groove.

  According to the drainage structure of the staircase of the present invention, the drainage member for receiving the rainwater flowing down the staircase riser surface and guiding it to the side groove is provided on the staircase riser surface or the tread surface in contact with the lift surface across the width direction of the staircase. Because it is arranged, rainwater that falls on the stairs and flows down the raised surface of the stairs can be received by the drainage member and guided to the gutter in the outdoor stairs and semi-outdoor stairs of apartment houses, etc. Can be prevented from flowing into the front door.

And since the drainage member is provided with the vertical part for adhering to the kicking surface of the staircase and the water receiving part, the floor material arranged on the tread surface of the staircase restricts the structure and drainage capacity. Without receiving, the drainage member can be disposed independently of such a flooring.
In particular, it is possible to prevent rainwater from overflowing from the water receiving portion by forming a folded portion whose tip is directed to the kick-up surface side at the upper end portion of the water receiving portion.

  Further, by arranging the drainage member with a water gradient toward the side groove, rainwater received by the drainage member can be smoothly guided to the side groove, and the drainage capacity can be improved.

Hereinafter, embodiments of a drainage structure for a staircase according to the present invention will be described with reference to the drawings.

1-3, showing a first reference example of drainage structure of stairs.
This drainage structure of the stairs is mainly applied to outdoor stairs and semi-outdoor stairs of apartment houses, etc., falls on the tread surface 11 of the stairs 1, accepts rainwater flowing down the kick-up surface 12, and the side of the stairs 1. The drainage member 2 for guiding to the side groove 13 formed in the step is disposed at an appropriate position on the raised surface 12 of the staircase 1 over the width direction of the staircase 1.

In this case, the drainage member 2 is disposed at a position that does not interfere with the ascending / descending of the stairs, preferably slightly below the middle of the raised surface 12 of the stairs 1.
The drainage member 2 does not have to be disposed on all the raised surfaces 12 of the stairs 1, and every several steps of the stairs 1, depending on the expected amount of rainwater that falls on the tread surface 11 of the stairs 1, or It can also be arranged selectively on the kicking surface 12 of the lower step.

The drainage member 2 is preferably disposed with a water gradient toward the side groove 13. Although the magnitude | size of this water gradient is not specifically limited, For example, the water gradient of 1/100 or more is suitable.
Thereby, the rainwater received in the drainage member 2 can be smoothly guided to the side groove, and the drainage capacity can be improved.

The end 2a of the drainage member 2 on the side groove 13 side is preferably arranged so as to protrude from the raised surface 12 of the staircase 1 to the side groove 13 side.
Thereby, it is possible to prevent rainwater from dripping down from the end portion 2a along the kick-up surface 12.
Further, as shown in FIG. 2, when the protrusion is formed on an inclined surface where the protrusion amount on the side of the kicking surface 12 is small and the protrusion amount increases as the distance from the kicking surface 12 side increases, Even if rainwater or garbage flows down, they can be flowed down without blocking.

On the other hand, a weir (not shown) can be formed on the end 2b opposite to the side groove 13 of the drainage member 2 as necessary.
Thereby, it is possible to prevent rainwater from dripping from the end 2b.

As shown in FIG. 3, the drainage member 2 includes a vertical portion 21 for fixing to the raised surface 12 of the staircase 1 and a substantially U-shaped water receiving portion 22.
The shape of the water receiving portion 22 is determined according to the expected amount of rainwater received in the drainage member 2, but with a normal amount of water, the height H may be set to about 10 to 50 mm, and the width W may be set to about 10 to 30 mm. A suitable height H is about 10 to 30 mm.
When the shape of the water receiving portion 22 is substantially U-shaped, the width of the bottom surface of the inner wall is wide and there are rounded corners in the cross section, which is preferable because maintenance such as cleaning is easy. A drainage may be improved by forming a ridge on the bottom surface of the substantially U-shaped inner wall and dividing the bottom surface into a plurality of sections.
The shape of the water receiving portion 22 may be substantially V-shaped or L-shaped in consideration of drainage.

The vertical portion 21 for fixing to the kicking surface 12 of the staircase 1 is preferably formed so as to protrude upward from the water receiving portion 22, and more preferably, a chamfer 21 a is formed at the upper end portion of the vertical portion 21. To.
Accordingly, the drainage member 2 can be securely fixed to the raised surface 12 of the staircase 1 and rainwater flowing down the raised surface 12 can be smoothly received from the vertical portion 21 to the water receiving portion 22.

Here, the drainage member 2 may form a folded portion 22a to the upper portion of FIG. 4 urchin by that shown in (Example of the present invention), the water receiving portion 22.
Thereby, it is possible to prevent rainwater from overflowing from the water receiver 22.

  As a method for fixing the drainage member 2 to the kick-up surface 12 of the staircase 1, any fixing means such as an adhesive, a pressure-sensitive adhesive, and a screw stopper can be employed.

  The drainage member 2 is a soft, semi-soft or hard synthetic resin, for example, a vinyl resin such as vinyl chloride or vinyl acetate, an olefin resin such as polyethylene or polypropylene, or a copolymer resin such as ethylene-vinyl acetate. The thermoplastic resin, rubber, metal such as aluminum, and any material such as inorganic material can be used.

Further, a hydrophilizing agent (surfactant, etc.) and / or an antifouling functional agent is applied to the inner surface of the drainage member 2, in particular, the drainage member 2 that receives rainwater (applied or mixed into the material constituting the surface layer). In this way, it is possible to prevent the rainwater from becoming independent droplets, to smoothly drain the rainwater regardless of the amount, and to prevent the adhesion of dirt, mold, etc. Can do.
In addition, an antifungal agent, an antibacterial agent, an algaeproofing agent and the like may be appropriately provided as necessary.

In this example , the floor material F is arranged on the tread surface 11 of the stairs 1. However, according to this example , the drainage structure and the drainage capacity are restricted in relation to the floor material F. In addition, the drainage member 2 can be disposed independently of the floor material F.

Figure 5 shows a second reference example of drainage structure of stairs.
This drainage structure of the stairs is mainly applied to outdoor stairs and semi-outdoor stairs of apartment houses, etc., falls on the tread surface 11 of the stairs 1, accepts rainwater flowing down the kick-up surface 12, and the side of the stairs 1. The drainage member 2 for guiding to the side groove 13 formed in the step is disposed at the position of the tread surface 11 in contact with the raised surface 12 of the staircase 1 over the width direction of the staircase 1.

As shown in FIG. 5B, the drainage member 2 includes a water receiving portion 23 that is fixed to the tread surface 11 of the stairs 1.
In the water receiving portion 23, a protruding edge 23a is formed on the side opposite to the kick-up surface 12 side.
In addition, the protruding edge 23b which formed the chamfering in the upper end part can also be formed in the kicking surface 12 side of the water receiving part 23 like the modification of the 2nd reference example shown in FIG.5 (c).

Above, with the drainage structure of the stairs of the present invention have been described based on the example of its, the present invention is not limited to the configuration described in the above embodiments, as appropriate within a scope not departing from its gist thereof The configuration can be changed.

  Since the drainage structure of the staircase of the present invention can receive rainwater flowing down the stairs's raised surface and guide it to the side groove, it can be suitably used for outdoor staircases and semi-outdoor staircases such as apartment buildings, for example, water It can also be used for staircases.

It is an explanatory diagram showing a first reference example of drainage structure of stairs. The principal part of the drainage structure of the staircase is shown, (a) is a plan view and (b) is a front view. The drainage member used for the drainage structure of the staircase is shown, (a) is a plan view, (b) is a front view, and (c) is a side view. The drainage member used for the drainage structure of the staircase of this invention is shown, (a) is a top view, (b) is a front view, (c) is a side view. Shows a second reference example of drainage structure of stairs, (a) shows the illustration, (b) is a side view of the drainage member for use in the drainage structure of the stairs, a side view of a modification of the (c) drainage member is there.

DESCRIPTION OF SYMBOLS 1 Stairs 11 Tread surface 12 Kick-up surface 2 Drainage member 21 Vertical part 22 Water receiving part 23 Water receiving part F Floor material

Claims (2)

In the drainage structure of the staircase, in which the drainage member for receiving rainwater flowing down the kicking surface of the staircase and guiding it to the side groove is disposed across the widthwise direction of the staircase on the stepping surface of the staircase or the stepping surface in contact with the kicking surface , The drainage member is provided with a vertical portion for fixing to the kicking surface of the staircase and a water receiving portion, and a folded portion whose tip is directed to the kicking surface side is formed at the upper end portion of the water receiving portion. drainage structure of stairs characterized by comprising Te.   The drainage structure for a staircase according to claim 1, wherein the drainage member is disposed with a water gradient toward the side groove.

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