JP2001193228A - Supply-drainage port peripheral structure of sheet waterproof structure and supply-drainage port member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain-outlet peripheral structure of a sheet waterproof structure in which members in the periphery of a drain outlet extending over a drain pipe from a waterproof sheet can be joined surely with sufficient strength mutually even when the waterproof sheet is made of an olefin resin and the drain pipe of a polyvinyl chloride and excellent watertightness can be obtained. SOLUTION: A drainage member 10 with a flange member 30 in which a sheet joining piece 32 is formed at one end of a cylindrical mounting allowance 31, a connecting pipe 20 made of polyvinyl chloride, the cylindrical mounting allowance 31 of the flange member 30 externally fitted on an outer circumference at one end of the connecting pipe 20 and a clamping band 40 for clamping and fixing to the connecting pipe 20 is provided. In the drain inlet member 10, the connecting pipe 20 is inserted into the drain outlet 2 and joined and unified with the drain pipe 3 in the drain outlet while the sheet joining piece 32 is arranged around supply-drainage ports on the surface of a building frame and joined with the supply-drainage port peripheral section of the waterproof sheet 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is suitably employed in a sheet roofing structure such as a water storage tank or a heat storage tank in addition to a flat roof on a building roof, a veranda, a balcony, and the like, in the vicinity of a supply / discharge port such as a drain portion. The present invention relates to a structure around a supply / discharge port of a waterproof sheet structure and a supply / discharge port member.

[0002]

2. Description of the Related Art In a sheet waterproof structure on a rooftop or the like of a building, only a required portion of a waterproof sheet is fixed to a skeleton, and most of the remaining portions are left free from the skeleton. Insulation methods are well known. Generally, a drain port structure such as a drain portion formed by the insulating method is configured such that a drain port member made of a synthetic resin molded product or the like having a flange portion formed at one end of a cylindrical portion is drained to the other end side of the cylindrical portion. Insert into the mouth and join and integrate with the drain pipe inside the drain port, and place the collar around the drain port on the body surface,
The flange and the peripheral edge of the drain port of the waterproof sheet are joined and integrated.

[0003] In such a sheet waterproof structure, a waterproof sheet, a drain port member and a drain pipe have conventionally been used.
Polyvinyl chloride resin is widely used, and the joining between the drain port member and the waterproof sheet and the joining between the drain port member and the drain pipe are performed by solvent welding or hot air welding. It is customary.

[0004] By the way, the waterproof sheet may be replaced due to aging or damage, but at the time of this repair, in consideration of cost and workability, the drain pipes and the like inside the frame are not changed, and the waterproof sheet and the drain port member are kept. It is common to replace only.

On the other hand, polyvinyl chloride resin products such as the above-mentioned waterproof sheet have a problem in incineration treatment at the time of disposal. There is an increasing demand for a waterproof sheet, and even in the sheet waterproof structure as described above, a waterproof sheet made of a polyolefin-based resin is often used instead of a polyvinyl chloride resin sheet.

[0006]

However, a sheet waterproof structure constructed using a polyvinyl chloride resin as a waterproof sheet, a drain port member, and a drain pipe has been proposed.
In the case of renovation work such as sheet replacement, if a waterproof sheet made of polyolefin resin is used and a drain port member made of polyvinyl chloride resin is used, bonding between the waterproof sheet and the drain port member However, there arises a problem that the bonding is made between different kinds of materials, and sufficient adhesive strength cannot be obtained, and it is difficult to obtain good watertightness.

[0007] Even if a drain port member made of a polyolefin resin of the same material as the waterproof sheet is used, the existing drain pipe disposed inside the drain port is still made of a polyvinyl chloride resin. Therefore, the joint between the drain port member and the drain pipe becomes a joint between different materials,
It becomes difficult to obtain sufficient adhesive strength, and as above,
The problem that good watertightness cannot be obtained arises.

Although the above description has been given of the case where repair work is performed when replacing a sheet, even when a waterproof sheet is newly laid, a drain pipe inside the drain port is made of polyvinyl chloride resin. When the waterproof sheet and the drain pipe are made of different materials, such as when a waterproof sheet made of a polyolefin resin is used, the same problem as described above occurs.

The present invention solves the above-mentioned problem of the prior art, and even when the waterproof sheet and the supply / drain pipe such as a drain pipe are made of different materials, the area around the supply / drain port from the waterproof sheet to the supply / drain pipe is provided. An object of the present invention is to provide a supply / discharge port peripheral structure and a supply / discharge port member of a waterproof sheet structure in which members can be reliably joined to each other with sufficient strength to obtain good watertightness.

[0010]

According to a first aspect of the present invention, a waterproof sheet is laid on a surface of a frame having a supply / discharge port except for the supply / discharge port. A flange member formed of the same material as the waterproof sheet, wherein a flange-like sheet joining piece is integrally formed around one end of a cylindrical mounting margin, and the flange member; A connection pipe made of a material different from the above, and a supply / discharge port member having a tightening band for fixing the cylindrical mounting margin of the flange member fitted to one end of the connection pipe to the connection pipe, The supply / drain member,
The connection pipe is inserted into the supply / drain port and connected to the supply / drain pipe inside the supply / drain port, and the sheet joining piece is arranged around the supply / drain port on the surface of the skeleton to supply / drain the waterproof sheet. The gist is that which is joined to the periphery.

In the peripheral structure of the supply / discharge port of the waterproof sheet structure according to the first aspect of the invention, the material of the connection pipe in the supply / discharge port member is appropriately selected in accordance with the material of the supply / discharge pipe. The connection pipe of the outlet member and the supply / drain pipe can be reliably connected, and the flange member of the supply / drain member and the waterproof sheet can be securely joined by joining between similar materials. The supply / discharge port peripheral members can be securely joined to each other with sufficient adhesive strength.

In the first invention, it is preferable that the flange member of the supply / discharge port member and the waterproof sheet are made of a polyolefin resin. That is, in this case, the supply / discharge port member and the waterproof sheet can be more reliably joined together while dechlorinating the waterproof sheet.

Further, in the first aspect of the present invention, it is preferable that the connection pipe of the supply / discharge port member and the supply / discharge pipe are made of polyvinyl chloride resin. That is, in this case, the supply / discharge port member can be more reliably connected to the supply / discharge pipe made of a polyvinyl chloride resin, which has been conventionally widely used, with sufficient adhesive strength.

On the other hand, the second aspect of the present invention specifies a main part of the supply / discharge port peripheral structure of the first aspect.

That is, in the second invention, the supply / drainage attached to the supply / drainage port in a waterproof sheet structure in which a waterproof sheet is laid on the surface of the frame having the supply / drainage port, except for the supply / drainage port. A flange member made of the same material as the waterproof sheet, and a connection pipe made of a material different from the flange member. A tightening band for fixing a cylindrical mounting margin of the flange member fitted to one end of the connection pipe to the connection pipe, wherein the connection pipe is inserted into the supply / drain port to supply / drain. It is connected to the supply / discharge pipe inside the mouth, and the sheet joining piece is arranged around the supply / discharge port on the body surface and is configured to be joined to the supply / discharge port peripheral portion of the waterproof sheet. And

[0016]

1 and 2 are cross-sectional views showing a structure around a drain port on a building roof to which an embodiment of the present invention is applied. FIGS. 3 and 4 are drain port members (FIG. 3) applied to the structure. It is a figure which shows 10). As shown in these drawings, the rooftop of a building as a seat waterproofing structure to which the present embodiment is applied is provided with a drainage port (2) as a supply / discharge port on a frame (1) constituting a flat field. A drain pipe (3) made of polyvinyl chloride resin is buried as a supply / discharge pipe inside the drain port (2).

Further, a waterproof sheet (5) made of a polyolefin resin is applied to the surface of the frame (1) except for the drain port (2) by the above-mentioned insulating method.

In this embodiment, a drain port member (10) serving as a supply / discharge port member includes a connecting pipe (20), a flange member (30), and a tightening band (40) for fixing these together. Have.

The connecting pipe (20) is made of polyvinyl chloride resin of the same material as the drain pipe (3), and is formed in a size that can be inserted into the drain port (2) and the drain pipe (3). I have.

The flange member (30) has a cylindrical mounting margin (3).
1) and a molded product of a polyolefin resin having a flange-shaped sheet joining piece (32) integrally formed in an outwardly protruding shape on the outer periphery of one end of a mounting margin (31). The cylindrical mounting margin (31) is formed such that the inner diameter thereof corresponds to the outer diameter of the connection pipe (20), and is configured to be able to be fitted to the connection pipe (20).

The cylindrical mounting margin (31) of the flange member (30) is fitted around the outer periphery of one end of the connection pipe (20) via a sealing agent (50) such as silicon, and in that state, the cylindrical mounting margin is formed. From the outside of (31), tightening bands (40) (4)
0) is wound, and the tubular mounting margin (31) is fastened and fixed to the outer circumference of one end of the connection pipe (20) by the bands (40) and (40), whereby the drain port member (10) is formed. You.

In the present invention, as the tightening band (40), in addition to a band-shaped band body provided with a fastener such as a buckle, a rubber band type tightening utilizing elasticity, plastic deformation A wire type, which is fastened and fixed by using a wire, a string type, which is connected and fixed, and an adhesive tape type, which uses an adhesive, can be preferably used. However, the present invention is not limited to this.

In the present embodiment, the drainage member (10) having the above structure is used to perform waterproofing around the drainage port of the frame (1) as described below.

First, a concave portion (1a) is formed around the drain port (2) in the frame (1) as necessary. Then, the drain port member (10) is connected to the sheet joining piece (32).
The connection pipe (20) is inserted into the drain port (2) so as to fit into the end of the drain pipe (3) in the drain port. Furthermore, the connecting pipe (20)
To the drain pipe (3) by solvent welding or hot air welding. Here, since the connection pipe (20) and the drain pipe (3) of the drain port member (10) are both made of polyvinyl chloride resin, they are easily and reliably joined and integrated with sufficient adhesive strength. be able to. The sheet joining piece (32) of the drain port member (10) is housed and arranged in the concave portion (1a) around the drain port, so that the upper surface of the sheet joining piece (32) has the same height as the body surface. The position is adjusted to the lower position.

Further, on the upper surface of the sheet joining piece (32) of the flange member (30) of the drain port member (10), the periphery of the drain port of the waterproof sheet (5) is arranged so as to be waterproof with the sheet joining piece (32). The sheet (5) is joined and fixed by hot air fusion or the like. Here, since the sheet joining piece (32) and the waterproof sheet (5) of the drain port member (10) are both made of polyolefin resin, they can be easily and reliably joined and integrated with sufficient adhesive strength. be able to.

As described above, according to the structure around the outlet of the present embodiment, the flange member (3) made of polyolefin resin is provided on the outer periphery of the connection pipe (20) made of polyvinyl chloride resin.
0) is tightened and fixed with a tightening band (40) to form a drain port member (10), and a connection pipe (20) of the drain port member (10) is connected to a drain pipe (3) made of polyvinyl chloride resin inside the drain port. ) And a flange member (3
0) is bonded and fixed to the polyolefin resin waterproof sheet (5), so that the drain pipe (3), the waterproof sheet (5), the drain port member (10) and other drain port peripheral members are sufficiently bonded to each other. Since it is possible to easily and reliably join and integrate with high strength, good watertightness can be obtained.

In the above embodiment, the cylindrical mounting margin (31) of the flange member (30) is changed to the connecting pipe (20).
The drainage port member (10) is formed by externally fitting to the outside of the flange member (10) and fixed by the tightening band (40). However, the present invention is not limited to this, and as shown in FIG.
The tubular mounting margin (31) of (0) is fitted inside the connecting pipe (20), and the fastening band (4) is inserted from outside of the connecting pipe (20).
The drain port member (10) may be formed by tightening 0). However, in the present invention,
As the flange member (30) is usually softer than the connection pipe (20), as shown in FIG. 5, the cylindrical mounting margin (31) of the flange member (30) is connected to the connection pipe (2).
1) to FIG.
By adopting a structure in which the cylindrical mounting allowance (31) is externally fitted to the outside of the connection pipe (20) as in the embodiment shown in FIG. 1, the fastening by the band (40) can be easily performed.

Further, in the above embodiment, the case where the present invention is applied to a flat rooftop of a building has been described. However, the present invention is not limited to this. For example, as shown in FIG.
By using an L-shaped sheet joining piece (32) of the flange member (30) as the drain port member (10) in a side view, the present invention is also applied to a corner between a flat field on a building roof and a parapet. be able to.

Further, in the above-mentioned embodiment and the like, the waterproof sheet (5) is joined to the upper surface side of the sheet joining piece (32) of the flange member (30). However, the present invention is not limited to this, and the sheet joining is not limited thereto. A waterproof sheet (5) may be joined to the lower surface side of the piece.

Further, as shown in FIG.
The sheet joint piece (32) of (0) is softly finished, so that the sheet joint piece (32) is laid on the curved surface (6) such as the inner surface of the drain groove having a substantially circular arc cross section or the inner surface of the drain concave portion having a substantially hemispherical shape. It can be made to follow the waterproof sheet (5) without gaps. As described above, according to the present invention, it is possible to obtain a good finish even when the surface of the skeleton is not flat.

In the above embodiment, the case where the present invention is applied to a sheet waterproof structure such as a building roof is described. However, the present invention is not limited to this, and in addition to a veranda or a balcony, a water storage tank or a heat storage tank may be used. It can also be applied to the inner wall. In addition, the present invention provides a method in which the area around the drain port (drain portion)
The present invention can be applied not only to a water supply port, an intake port, and an exhaust port, but also to a bottom wall, a peripheral side wall,
The present invention can be applied to any position of a wall surface such as a ceiling wall and a corner.

In the above embodiment, the connection pipe is made of polyvinyl chloride resin and the flange member is made of polyolefin resin as the supply / discharge port member. However, in the present invention, the flange member is made of polyolefin resin. Any material may be used as long as the waterproof sheet is made of the same material. For example, when the waterproof sheet is made of polyvinyl chloride resin, the flange member may be made of polyvinyl chloride resin.

The material of the connecting pipe of the supply / discharge port member may be appropriately selected according to the material of the supply / discharge pipe such as the drain pipe.
For example, in addition to the polyvinyl chloride resin, a synthetic resin such as a polyolefin resin, a metal such as a steel pipe, or the like can be used. However, in the present invention, it is preferable that the connection pipe be made of the same material as the supply / discharge pipe in order to secure a sufficient connection strength between the connection pipe and the supply / drain pipe.

The present invention can of course be applied to a repair work such as replacing an existing waterproof sheet, and can also be applied to a new work such as laying a new waterproof sheet. Further, when the present invention is applied at the time of repair work, the supply / discharge member before the repair is left, and a flange member or a connection pipe of a new supply / discharge member is joined to the supply / discharge member. May be.

[0035]

As described above, according to the supply / discharge port peripheral structure of the waterproof sheet structure of the first invention, one end of the connecting pipe is
A flange member of the same material as the waterproof sheet is fixed with a tightening band to form a supply / drain member, and a connection pipe of the supply / drain member is connected to a supply / drain pipe inside the supply / drain port, and the flange member is connected to the waterproof sheet. The connection pipe of the supply / discharge port member and the supply / discharge pipe can be securely connected by appropriately selecting the material of the connection pipe in the supply / discharge port member according to the material of the supply / discharge pipe. As well as the flange member of the inlet / outlet member and the waterproof sheet can be securely joined by joining between the same materials, so the members around the inlet / outlet from the waterproof sheet to the inlet / outlet pipe are reliably joined to each other with sufficient strength. Thus, there is an effect that good watertightness can be obtained.

In the first aspect of the present invention, when both the flange member and the waterproof sheet are made of a polyolefin resin, the waterproof sheet and the supply / discharge member can be more securely connected while dechlorinating the waterproof sheet. There is an advantage that it can be joined to.

In the first aspect of the present invention, when both the connecting pipe and the supply / discharge pipe are made of polyvinyl chloride resin, the supply / discharge port member is made of a conventional polyvinyl chloride resin supply / discharge pipe. Can be connected more reliably with sufficient adhesive strength, and therefore, there is an advantage that, for example, a supply / discharge pipe made of a polyvinyl chloride resin can be suitably used for repairing a sheet waterproof structure in which a buried sheet is buried.

Since the supply / discharge port member of the waterproof sheet structure of the second invention specifies the main part of the peripheral structure of the supply / discharge port of the first invention, the same effect as above can be obtained. it can.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a structure around a drain port on a building roof to which an embodiment of the present invention is applied.

FIG. 2 is an exploded cross-sectional view illustrating a drainage port peripheral structure of the embodiment.

FIG. 3 is a perspective view showing a drain port member applied to the drain port peripheral structure of the embodiment.

FIG. 4 is an exploded perspective view showing a drain port member of the embodiment.

FIG. 5 is a sectional view showing a drain port member applicable to a drain port peripheral structure according to a first modification of the present invention.

FIG. 6 is a perspective view showing a drain port member applicable to a drain port peripheral structure according to a second modification of the present invention.

FIG. 7 is a sectional view showing a structure around a drain port according to a third modification of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Body 2 ... Drain port (supply and discharge port) 3 ... Drain pipe (supply and discharge pipe) 5 ... Waterproof sheet 10 ... Drain port member (supply and discharge port member) 20 ... Connection pipe 30 ... Flange member 31 ... Cylindrical mounting margin 32: Sheet joining piece 40: Tightening band

Claims (4)

[Claims] 1. A peripheral structure of a sheet waterproof structure in which a waterproof sheet is laid on a surface of a body having a supply / discharge port except for the supply / discharge port, wherein a tubular mounting margin is provided. A flange-like sheet joining piece is integrally formed on one end of the outer periphery of the connecting member, and a flange member made of the same material as the waterproof sheet, a connecting pipe made of a different material from the flange member, and fitted to one end of the connecting pipe. A supply / discharge port member having a tightening band for fixing the cylindrical attachment allowance of the flange member to the connection pipe, wherein the connection pipe is inserted into the supply / discharge port. And the sheet joining piece is arranged around the supply / drain port on the surface of the skeleton and joined to the supply / drain port peripheral portion of the waterproof sheet. The structure around the supply / exhaust port of the waterproof sheet structure. 2. The structure around a supply / discharge port of a waterproof sheet structure according to claim 1, wherein the flange member of the supply / discharge port member and the waterproof sheet are made of a polyolefin resin. 3. The connection pipe of the supply / discharge port member and the supply / discharge pipe are made of polyvinyl chloride resin.
Or the surrounding structure of the supply / discharge port of the waterproof sheet structure according to 2. 4. A supply / discharge port member attached to the supply / discharge port of a waterproof sheet structure having a waterproof sheet laid thereon except for the supply / discharge port on a surface of a frame having a supply / discharge port, A flange-shaped sheet joining piece is integrally formed on the outer periphery of one end of the cylindrical mounting margin, and a flange member made of the same material as the waterproof sheet; a connection pipe made of a material different from the flange member; and one end of the connection pipe A fastening band for fixing a cylindrical mounting margin of the flange member fitted to the portion to the connection pipe, wherein the connection pipe is inserted into the supply / drain port and the supply / drain pipe inside the supply / drain port is provided. And the sheet joining piece is arranged around the supply / discharge port on the surface of the skeleton, and is joined to the supply / discharge port periphery of the waterproof sheet. Supply and discharge member.