JPH05331894A - Setting method of water-proof pan - Google Patents

Abstract

PURPOSE:To make the setting work easier and to prevent generation of a leakage at the part of a drainage trap or the like after the setting. CONSTITUTION:When a water-proof pan 10 is set on a floor slab 12, a piping end member such as a trap 16 and a drainage pipe to be housed in a recess 20 formed to the floor slab 12 is installed to the waterproof pan 10 beforehand, and at the same time, a through-hole 24 is formed to the water-proof pan 10 near the installing position of the piping end member. After placing the water- proof pan 10 to make the piping end member enter the inside of the recess 20, a burying back process of the recess 20 is carried out through the through hole 24, and then, a filler material is filled to the through-hole 24 of the water- proof pan 10 so as to block the through-hole 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for installing a waterproof pan.

[0002]

2. Description of the Related Art Usually, a drain trap, a sewage pipe, etc. are connected to a waterproof pan constituting a floor of a unit bathroom,
The waterproof pan is connected to the water pipe through these.

When this waterproof pan is installed on a floor slab of a reinforced concrete building, a through hole formed in a floor slab 102 with a drain trap 100 and the like (hereinafter, a drain trap will be described as an example) as shown in FIG. Equal recess 104
The installation / construction is carried out so that the recess 104 can be put into the inside, but in this case, it is necessary to fill the recess 104 with the mortar 108 after disposing the drain trap 100.

Therefore, conventionally, the drain trap 100 is previously arranged in the recess 104, and the recess 104 is covered with the mortar 108.
After backfilling with water, a waterproof pan 10 is placed on the floor slab 102.
6 is left stationary, and then the tightening ring 110 with a screw is screwed into the upper end of the drain trap 100 from the upper surface side of the waterproof pan 106 to connect the drain trap 100 and the waterproof pan 106.

[0005]

However, in such a case, when installing the waterproof pan, it is necessary to align the center of the hole of the drain trap 100 and the center of the hole of the drain port of the waterproof pan 106 which are fixed in advance. In the past, this work involved a great deal of difficulty.

In some cases, the hole centers of the drain trap 100 and the drain opening of the waterproof pan 106 may not be exactly aligned with each other. In this case, the waterproof pan 106 and the drain trap 100 are not aligned with each other.
There was a problem that it could not be fixed firmly and that if it was forcibly fixed, it was distorted and water leaked.

[0007]

The present invention has been made to solve such problems. Thus, the invention of the present application, when installing the waterproof pan on the floor slab, while attaching the trap, sewage pipe and other pipe end members accommodated in the recess formed in the floor slab to the waterproof pan in advance,
A through hole is formed in the waterproof pan in the vicinity of the mounting position of the pipe end member, and the waterproof pan is placed so that the pipe end member enters the recess, and then the recess is backfilled through the through hole. A treatment is performed, and then the through hole of the waterproof pan is closed (claim 1).

According to another invention of the present application, the through hole of the waterproof pan is filled with an elastic putty having a rubber-like elasticity after curing in an uncured state, and then the curing reaction is performed to close the through hole. It is characterized by processing (claim 2).

Further, according to another invention of the present application, the opening on the back side of the waterproof pan in the through hole is closed with a back plate, and then a predetermined filling material is filled in the through hole to close the through hole. (Claim 3).

Further, another invention of the present application is characterized in that a finishing material is fixed to the surface portion of the through hole of the waterproof pan that has been subjected to the closing treatment to finish the surface (claim 4).

[0011]

As described above, according to the first aspect of the present invention, the waterproof pan is installed on the waterproof pan in advance, and the waterproof pan is installed on the floor slab. With this configuration, when the waterproof pan is set on the floor slab, it is not necessary to perform a difficult alignment work between the separately fixed drain trap and the drain port (mounting hole) of the waterproof pan.

Further, according to the present invention, since the drain trap or the like is attached to the waterproof pan in advance, it can be firmly fixed. Further, when installing the waterproof pan, it is not necessary to connect the drain trap and the drain port of the waterproof pan with an unreasonable force. Therefore, it is possible to solve the problem that the same part is distorted to cause water leakage.

According to the second aspect of the present invention, the through-hole of the waterproof pan is filled with the elastic putty to close it. Since this product exhibits rubber-like elasticity after the curing reaction, the following effects are obtained. can get.

Generally, the waterproof pan is made of a plastic material such as FRP. Therefore, a resin material is generally considered as a filling material for closing the through hole, but when such a resin material is filled in the through hole, shrinkage occurs due to the curing reaction of the resin material, and the filling is performed based on this shrinkage. A crack occurs between the material and the inner surface of the through hole or in the filler itself. When such a crack is generated, water may leak from the crack.

However, since the elastic putty of the present invention has rubber-like elasticity after the curing reaction, it does not cause such cracks, and therefore does not cause the problem of water leakage due to the cracks.

The elastic putty also prevents the occurrence of cracks due to its elasticity even when a person is placed on the waterproof pan and the waterproof pan bends due to its load.

According to the invention of claim 3, the opening of the through hole on the back side of the waterproof pan is closed by the back plate, and then the filling material is filled into the through hole. Can be packed in through holes.

According to the fourth aspect of the present invention, the through holes are closed and the upper surface is finished. This makes it possible to cleanly finish the through holes formed in the waterproof pan, thereby improving the aesthetic appearance. be able to.

[0019]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 2 shows a waterproof pan installation state. In FIG. 2, 10 is a waterproof pan installed on the floor slab 12, and a drain trap 16 is fixed to a drain port 14 with a tightening ring 18.

The drain trap 16 enters into a through hole 20 formed in the floor slab 12. Drain trap 1
The through hole 20 of the floor slab 12 in which 6 is inserted is backfilled with a mortar 22.

The drain pan 16 is provided on the waterproof pan 10.
A through hole 24 is formed in the vicinity of the fixed position, and the through hole 24 is closed by an elastic putty 26.

The elastic putty 26 is a one-liquid room temperature reaction-curing type, and has a normal putty shape before hardening and exhibits rubber-like elasticity after hardening. In this example, as the elastic putty 26, one commercially available as DP-20 from Cemedine Co. was used.

FIGS. 1 and 3 show a specific procedure of the method for installing the waterproof pan 10. As shown in the figure, in this method, the drain trap 16 is attached to the waterproof pan 10 in which the through hole 24 is formed, and the drain trap 16 is left open and the drain trap 16 is inserted into the through hole 20 of the floor slab 12. The waterproof pan 10 is set on the floor slab 12 so that the waterproof pan 10 is allowed to enter inside.

Thereafter, the mortar 22 is filled in the through hole 20 of the floor slab 12 through the through hole 24 of the waterproof pan 10 and the mortar 22 is hardened, and the through hole 20 is closed with the mortar 22. Then, after that, the through hole 24 of the waterproof pan 10 used for backfilling the mortar 22 is closed.

This process is performed according to the procedure shown in FIG.
That is, the back plate 28 made of vinyl chloride resin or the like is coated with the adhesive 30, and the back plate 28 is hung from the upper side of the waterproof pan 10 with a wire or the like through the through hole 24, and then pulled up. Then, the back plate 30 is fixed to the back surface of the waterproof pan 10, and the through hole 24
The opening on one end side of is closed.

Thereafter, the inside of the through hole 24 is filled with the elastic putty 26 before curing, and the through hole 24 is closed. Thereafter, the elastic putty 26 is cured and reacted for a predetermined time. At this time, since the elastic putty 26 exhibits rubber elasticity after being cured as described above, the curing reaction does not cause a crack between the elastic putty 26 and the inner surface of the through hole 24 or inside the elastic putty 26.

By doing so, next, the upper surface portion of the through hole 24, which is closed by the elastic putty 26, is finished. Various patterns are possible as this finishing process. FIG. 4 shows an example of the pattern.

(A) is an example in which the tile 34 is finished by adhering the tile 34 to the upper surface of the waterproof pan with the adhesive 32, and (B) is only the upper surface portion of the through hole 24 or its peripheral portion, for example. This is an example of a case where a plate 36 made of the same material as the back plate 28 is fixed and finishing is performed.
This finishing method (B) is effective when the through hole 24 is located in a bathtub or a portion hidden under the toilet bowl.

On the other hand, in (C), the upper end portion of the through hole 24 is formed in a tapered shape, and an FR made of the same material as the surface layer of the waterproof pan 10 is formed therein.
This is an example of forming a P layer. Specifically, the finishing of this example can be performed by laying a glass fiber mat on the elastic putty 26, impregnating the liquid resin material therein, and curing the resin material.

The embodiment of the present invention has been described in detail above, but this is merely an example, and the present invention allows a waste water pipe for discharging the waste water from the toilet bowl to enter into the recess formed in the floor slab and to allow this. The present invention can be implemented in variously modified forms based on the knowledge of those skilled in the art without departing from the spirit of the present invention, such as being applicable to the installation of the connected waterproof pan to the waterproof pan.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of main steps of a waterproof pan setting method that is an embodiment method of the present invention.

FIG. 2 is a cross-sectional view of an essential part of the waterproof pan installed state.

FIG. 3 is an explanatory diagram of another step of the method of the example.

FIG. 4 is a diagram showing an example of a method for finishing the surface portion of the through hole formed in the waterproof pan.

FIG. 5 is an explanatory diagram for explaining the background of the present invention.

[Explanation of symbols]

 10 Waterproof Pan 12 Floor Slab 16 Drain Trap 20 Through Hole 22 Mortar 24 Through Hole 26 Elastic Putty 28 Back Plate 34 Tile 36 Plate

Claims (4)

[Claims] 1. When installing a waterproof pan on a floor slab, a pipe end member such as a trap or a waste water pipe housed in a recess formed in the floor slab is attached to the waterproof pan in advance, and the pipe end is also attached. A through hole is formed in the waterproof pan in the vicinity of the mounting position of the member, and the back end of the recess is backfilled through the through hole after the waterproof pan is set in a state where the pipe end member enters the recess. Then, a method of installing the waterproof pan, which comprises closing the through hole of the waterproof pan thereafter. 2. The through hole of the waterproof pan is filled with an elastic putty having rubber-like elasticity after curing in an uncured state,
The method for installing a waterproof pan according to claim 1, wherein the through hole is closed by a curing reaction thereof. 3. A back plate is used to close an opening of the through hole on the back surface side of the waterproof pan, and a predetermined filling material is filled in the through hole to close the through hole. The method for installing the waterproof pan according to 1 or 2. 4. The method for installing a waterproof pan according to claim 1, wherein a finishing material is fixed to the surface portion of the through hole of the waterproof pan that has been closed to finish the surface.