JP6725307B2 - Draining structure and building - Google Patents

Description

TECHNICAL FIELD The present invention relates to a draining structure, a building, and a draining member provided in a corner portion between a floor and a wall.

As disclosed in Patent Documents 1-3, a waterproof sheet is laid on the floor of the balcony, and the lower portion of the wall connected to the floor has a structure in which the edge of the waterproof sheet is raised. ing.

In addition, the raised upper edge of the waterproof sheet is covered and hidden by a draining material that is bent in a step shape, and rainwater or the like is hard to directly hit the upper edge of the waterproof sheet.

JP-A-2002-294856 Japanese Utility Model Laid-Open No. 58-114305 Japanese Utility Model Publication No. 63-174213

However, when unevenness is provided on the wall surface for the purpose of improving the design, it becomes difficult to adhere the upper edge of the waterproof sheet, and if a small gap remains, moisture will penetrate into the back surface side of the waterproof sheet. There is a risk of doing it.

Therefore, an object of the present invention is to provide a draining structure capable of enhancing the waterproof performance by surely adhering the upper edge of the waterproof sheet to the wall surface, and a building and a draining member provided with the draining structure.

In order to achieve the above-mentioned object, the draining structure of the present invention is a draining structure provided at a corner between a floor and a wall, and is laid on the floor and raised so as to cover a lower portion of the wall. A rising portion of the waterproof sheet, a waterproof material arranged across the upper edge of the rising portion and the wall surface of the wall above the rising portion, a draining material covering the rising portion and the waterproof material, and the waterproof And an elastic material interposed in a compressed state between the material and the draining material.

Here, the wall surface may be formed into an uneven surface. Further, it is preferable that the elastic material is a watertight material provided on a surface of the draining member facing the wall.

Further, the upper edge of the draining member can be configured to be formed in an eave portion protruding toward the wall surface. In addition, a ridge portion protruding toward the wall surface may be formed in an intermediate portion of the draining member.

The eaves portion of the draining member has a larger amount of protrusion than the ridge portion, and an elastic material that covers an upper edge of the waterproof material is provided on a surface of the ridge portion that faces the wall. can do.

Further, the invention of a building is characterized in that the draining structure according to any one of the above is provided at a corner portion between a floor and a wall.

Further, the invention of a draining member is a draining member attached to a lower portion of a wall adjacent to a floor, and has an eaves portion projecting toward the wall at an upper edge, and a protrusion protruding toward the wall at an intermediate portion. It is characterized by comprising a ridge portion, a hanging portion hanging from the ridge portion, and an elastic material provided on a surface of the ridge portion facing the wall.

In the draining structure of the present invention thus configured, the waterproof material is arranged around the upper edge of the rising portion of the waterproof sheet laid on the floor, and the waterproof material is compressed between the waterproof material and the draining material. It is pressed against the wall surface by the interposed elastic material.

In this way, the upper edge of the waterproof sheet is surely brought into close contact with the wall surface, whereby a draining structure having high waterproof performance can be obtained. In particular, the upper edge of the waterproof sheet can be reliably brought into close contact with the wall surface even when the wall surface has irregularities for the purpose of improving the design.

Further, if the elastic material is a watertight material provided on the draining material, the waterproof performance of the upper edge of the waterproof sheet can be improved only by pressing the draining material toward the wall surface.

Further, if the eaves protruding toward the wall surface are formed at the upper edge of the draining member, the water droplets flowing down along the wall surface can be promptly discharged to the floor side. Further, if the protruding portion protruding toward the wall surface is formed in the middle portion of the draining member, the waterproof member can be pressed against the wall surface by the protruding portion.

Furthermore, the eaves portion of the draining member is made to have a larger amount of protrusion than the ridge portion, and by providing the ridge portion with an elastic material, the wall surface and the tip of the visor portion in a state where the elastic material is compressed The gap can be reduced.

It is sectional drawing which showed the structure of the draining structure of this Embodiment. It is a side view explaining composition of an end of the drainage material of this embodiment. It is a perspective view explaining the process of fixing the rising part of a waterproof sheet. It is sectional drawing explaining the process of sticking a waterproof tape toward the upper edge of a rising part. It is a perspective view explaining the state where the waterproof tape was stuck to the upper edge of the rising part. It is sectional drawing explaining the process of attaching a draining material so that a waterproof tape may be covered. It is the perspective view which showed the external appearance of the draining structure of this Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view for explaining the configuration of the draining structure 1 of the present embodiment, and FIG. 2 is a side view for explaining the configuration of the draining material 7 arranged in the draining structure 1.

Draining structure 1 of the present embodiment is provided at a corner portion that is an entrance corner between floor 2 and wall 3 of a building. For example, it is provided in the corner between the floor of the balcony and the outer wall, the corner between the semi-outdoor inner corridor in the housing complex and the wall of each dwelling unit.

In the present embodiment, as shown in FIGS. 5 and 7, a location adjacent to the opening 33 such as a entrance will be described as an example. The wall 3 is an outer wall in which tiles and the like are attached to an outer wall surface 31 which is a wall surface.

On the other hand, as shown in FIG. 3, a waterproof sheet 4 is laid on the upper surface 21 of the floor 2 connected to the wall 3. The waterproof sheet 4 is erected so that the side edge portion on the wall 3 side covers the lower portion 32 of the wall 3 to form the erected portion 41.

The rising portion 41 is joined to the wall 3 by a fixing screw 42 such as a tapping screw. A plurality of fixing screws 42 are screwed at intervals in the extending direction (horizontal direction) of the rising portion 41.

As shown in FIG. 1, the draining structure 1 of the present embodiment is arranged across the rising portion 41 of the waterproof sheet 4, the upper edge 411 of the rising portion 41 and the outer wall surface 31 above the rising portion 41. Waterproof tape 5 as a waterproof material, draining material 7 covering the rising portion 41 and the waterproof tape 5, and watertightness as an elastic material interposed between the waterproof tape 5 and the draining material 7 in a compressed state. It is mainly composed of the material 6.

The waterproof tape 5 is formed of a base material having excellent waterproofness and durability and an adhesive. For example, a tape composed of a rubber base material and a butyl rubber adhesive can be used.

The waterproof tape 5, which is a base material having excellent deformability, can be adhered even if the outer wall surface 31 has irregularities. In particular, when a rubber base material having plastic deformation performance is used, it is possible to maintain the state in which the rubber base material is in close contact with the uneven surface.

On the other hand, for the watertight material 6, a low density, flexible foam or the like can be used. For example, EPDM rubber (ethylene/propylene/diene rubber) foam can be used.

Further, since the watertightness of the watertight material 6 changes depending on the compression rate, the material thickness D2 is set according to the size of the gap in which the watertight material 6 is arranged so that the desired watertight performance is obtained.

As shown in FIGS. 2 and 7, the draining member 7 is a long member manufactured by bending a metal plate such as stainless steel. FIG. 2 is a side view showing an end portion of the draining member 7.

The draining member 7 includes an eaves portion 71 that protrudes substantially horizontally at the upper edge, a protruding portion 72 that protrudes substantially horizontally at the middle portion, and a hanging portion 73 that extends substantially vertically from the protruding portion 72. , Is mainly formed by bending a metal plate.

The concave portion between the eaves portion 71 and the convex ridge portion 72, which is uneven from the top in a side view, is closed by a rectangular upper end surface portion 74 at the end portion. Further, the lower side of the ridge 72 is closed at the end by a rectangular lower end surface 75.

The eaves portion 71 of the draining member 7 has a larger protrusion amount than the protruding portion 72. In detail, the tip edge of the eaves portion 71 is projected toward the outer wall surface 31 side by a difference D1 from the wall facing surface 721 that faces the outer wall surface 31 of the protruding portion 72.

On the other hand, the material thickness D2 of the watertight material 6 attached to the wall facing surface 721 of the convex strip 72 is larger than the difference D1. In short, the watertight material 6 is compressed at the maximum distance D2-D1.

Next, a method for constructing the drainage structure 1 of the present embodiment will be described with reference to FIGS. 3 to 7.

First, as shown in FIG. 3, the waterproof sheet 4 is laid on the upper surface 21 of the floor 2. Then, at the corner portion where the floor 2 and the wall 3 intersect, the side edge portion of the waterproof sheet 4 is raised along the outer wall surface 31 to form a rising portion 41.

By the rising portion 41, the lower portion 32 of the wall 3 and the upper surface 21 of the floor 2 are continuously covered with the waterproof sheet 4. Further, with respect to the rising portion 41, the fixing screw 42 is screwed from the floor 2 side toward the wall 3 to maintain the raised state.

Subsequently, as shown in FIG. 4, a strip-shaped waterproof tape 5 is attached so as to straddle the upper edge 411 of the rising portion 41 and the outer wall surface 31 above it. In the present embodiment, the lower edge 52 of the waterproof tape 5 is arranged near the center in the height direction of the rising portion 41, and the substantially center in the height direction between the upper edge 51 and the lower edge 52 is raised. It is arranged around the upper edge 411 of the portion 41.

In FIG. 5, the lower portion 32 of the wall 3 adjacent to the opening 33 such as the entrance is covered with the rising portion 41 of the waterproof sheet 4, and the upper edge 411 of the rising portion 41 is covered with the waterproof tape 5. Shows the state.

Further, as shown in FIG. 6, the step of covering the rising portion 41 and the waterproof tape 5 with the draining material 7 is performed. In this step, the draining material 7 is attached so that the approximate center in the height direction of the watertight material 6 attached to the ridge 72 of the draining material 7 is arranged around the upper edge 51 of the waterproof tape 5. ..

Bonding of the draining material 7 is performed by applying a caulking material 77 to the tip of the fixing screw 76 and screwing the caulking material 77 into the ridge 72. The caulking material 77 applied to the fixing screw 76 spreads to the through holes of the draining material 7 and the vicinity of the upper edge 51 of the waterproof tape 5, and is waterproofed.

Here, since the ridge portion 72 is a recessed portion when viewed from the floor 2 side, the head of the driven fixing screw 76 is hidden and can be made inconspicuous.

When the ridge 72 is pressed against the outer wall surface 31, the watertight material 6 is elastically deformed and compressed. The watertight material 6 can be compressed and deformed at maximum until the tip edge of the eaves portion 71 contacts the outer wall surface 31. That is, the watertight material 6 having the material thickness D2 can be compressed and deformed to the thickness of D1.

FIG. 7 shows the water draining structure 1 at the corners of the wall 3 and the floor 2 adjacent to the opening 33 to which the draining material 7 is attached as described above. The end of the draining material 7 facing the opening 33 is closed by the upper end surface 74 and the lower end surface 75.

The front of the draining material 7 facing the floor 2 side functions as a strip-shaped parting material. As shown in FIG. 1, the lower edge of the draining member 7 is arranged at a position separated from the waterproof sheet 4 that covers the upper surface 21 of the floor 2.

When the drainage gradient in the extending direction of the draining member 7 is provided on the upper surface 21 of the floor 2, the hanging portion 73 is formed into a trapezoidal shape that matches the drainage gradient, so that the distance from the floor 2 is constant. You can

Next, the operation of the draining structure 1 of the present embodiment, the building in which it is provided, and the draining member 7 will be described.

In the draining structure 1 of the present embodiment configured as described above, the waterproof tape 5 is arranged around the upper edge 411 of the rising portion 41 of the waterproof sheet 4 laid on the floor 2, and the waterproof tape 5 is a draining material. It is pressed against the outer wall surface 31 by the watertight material 6 interposed between the watertight material 6 and the watertight material 7.

Therefore, the upper edge 411 of the waterproof sheet 4 can be surely brought into close contact with the outer wall surface 31, and the draining structure 1 having high waterproof performance can be obtained. In particular, the upper edge 411 of the waterproof sheet 4 can be reliably brought into close contact with the outer wall surface 31 even if the outer wall surface 31 has irregularities for the purpose of improving the design.

Further, since the waterproof sheet 4 laid on the upper surface 21 of the floor 2 continuously forms the rising portion 41 that covers the lower portion 32 of the wall 3, the amount of precipitation increases and water accumulates on the floor 2 to raise the water level. Even in this case, the waterproof property can be ensured.

Further, if the watertight material 6 provided on the draining material 7 is an elastic material, the waterproof tape 5 can be applied to the outer wall surface only by pressing the draining material 7 toward the outer wall surface 31 by the elastic force of the watertight material 6 which is compressed and deformed. It can be crimped to 31.

In short, even if the waterproof tape 5 is attached to the outer wall surface 31 having an uneven surface, the protrusions only come into close contact with each other and the recess remains as a gap. However, the watertight material 6 causes the waterproof tape 5 to face the outer wall surface 31 from the outside. By pressing, the deformed waterproof tape 5 fills the concave portion, and the gap disappears. As a result, the waterproof performance of the upper edge 411 of the waterproof sheet 4 can be improved.

Further, if the upper edge of the draining member 7 is formed on the eaves portion 71 protruding toward the outer wall surface 31, the water droplets flowing down along the outer wall surface 31 can be promptly discharged to the floor 2 side. ..

Further, if the protrusion 72 protruding toward the outer wall surface 31 is formed in the middle portion of the draining material 7, the waterproof tape 5 can be structurally pressed to the outer wall surface 31 side by the protrusion 72. ..

Further, the eaves portion 71 of the draining member 7 is made to have a larger protrusion amount than the protruding portion 72, and the protruding portion 72 is provided with the watertight material 6, so that the watertight member 6 is compressed outside. The gap between the wall surface 31 and the tip edge of the eaves portion 71 can be reduced.

Further, the draining structure 1 constructed by the waterproof tape 5 and the draining material 7 can be constructed by a simpler work as compared with the wet waterproofing structure which uses the caulking material 77 frequently. That is, since the caulking material 77 is only applied to the tip of the fixing screw 76, the usage amount can be significantly reduced, and the load of field work can be reduced.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and a design change that does not depart from the gist of the present invention is Included in the invention.

For example, in the above-described embodiment, the configuration in which the watertight material 6 is interposed between the waterproof tape 5 and the draining material 7 has been described, but the invention is not limited to this, and the elastic material is interposed in a compressed state. If possible, the waterproof tape 5 can be deformed and brought into close contact with the outer wall surface 31.

Further, in the above-described embodiment, the waterproof tape 5 is described as an example of the waterproof material, but the waterproof material is not limited to this. By press-bonding with an elastic material, it is possible to closely contact with the outer wall surface 31 having an uneven surface.

1 Draining structure 2 Floor 3 Wall 31 Outer wall surface (wall surface)
32 Lower part 4 Waterproof sheet 41 Start-up part 411 Upper edge 5 Waterproof tape (waterproof material)
51 Upper edge 6 Watertight material (elastic material)
7 Drainer 71 Eaves 72 Convex 721 Wall facing surface (surface facing wall)
D1 (protrusion amount) difference

Claims (4)

A draining structure provided at the corner between the floor and the wall,
A start-up portion of the waterproof sheet laid on the floor and raised to cover the lower portion of the wall,
A waterproof material arranged across the upper edge of the rising portion and the wall surface of the wall above it,
A draining material that covers the rising portion and the waterproof material,
An elastic material interposed in a compressed state between the waterproof material and the draining material ,
The upper edge of the draining member is formed in an eaves portion that is projected toward the wall surface and the tip edge is in contact with the wall surface, and the middle portion of the draining member is projected toward the wall surface. Ridges are formed,
The eaves portion of the draining member has a larger protrusion amount than the ridge portion, and an elastic material that covers an upper edge of the waterproof material is provided on a surface of the ridge portion that faces the wall. Draining structure. The drainage structure according to claim 1, wherein the wall surface is formed into an uneven surface. The drainage structure according to claim 1 or 2, wherein the elastic material is a watertight material provided on a surface of the drainage material that faces the wall. A building provided with the draining structure according to any one of claims 1 to 3 at a corner between a floor and a wall.