JP2632273B2 - Installation method of waterproof pan - Google Patents

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 Generally, a drain trap, a sewage pipe, and the like are connected to a waterproof pan constituting a floor of a unit bathroom or the like.
The waterproof pan is connected to the drain pipe via these.

When the waterproof pan is installed on a floor slab of a reinforced concrete building, as shown in FIG. 5, a drain trap 100 or the like (hereinafter described as an example of a drain trap) is formed in a floor slab 102 through a through hole. Equal recess 104
Installation and construction are performed in such a state that they can be inserted into the inside. In this case, it is necessary to bury the recess 104 with the mortar 108 after disposing the drain trap 100.

Therefore, conventionally, a drain trap 100 is previously arranged in a recess 104 and the recess 104 is
After backfilling with waterproof pan 10 on floor slab 102
6, and after that, a threaded fastening ring 110 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, it is necessary to align the center of the hole of the drain trap 100 fixed in advance with the center of the hole of the drain port of the waterproof pan 106 when installing the waterproof pan. In the past, this task involved a great deal of difficulty.

In some cases, the center of the hole between the drain trap 100 and the drain port of the waterproof pan 106 may not exactly coincide with each other.
However, there has been a problem in that it is not possible to firmly fix the cable, and if the cable is forcibly fixed, distortion occurs therein, causing water leakage.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve such problems. Thus, the invention of the present application is to install a waterproof pan on a floor slab, attach a pipe end member such as a trap or a sewage pipe housed in a 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 after the waterproof pan is placed in a state where the pipe end member enters the recess, the recess is backfilled through the through hole. Processing, and then the back side of the through hole
After closing the opening of the back plate with the specified filler
The packed in the through hole, characterized in that closing processing the through hole (claim 1).

[0008] Another invention of the present application is a waterproof pan for floor slurries.
When installing on the floor, in the recess formed in the floor slab
Prevent pipe end members such as traps and sewage pipes
Attach to the water pan and attach the piping end member
A through hole is formed in the waterproof pan in the vicinity of the
Place the waterproof pan in a state where the member enters the recess.
After placement, backfilling of the recess is performed through the through hole.
Then, the through hole of the waterproof pan is closed with a filler.
Then, a finishing material is fixed to the surface of the through hole to finish the surface.
Characterized by raising (claim 2).

[0009]

As described above, the first aspect of the present invention is to install such a waterproof pan on a floor slab in a state where a drain trap or the like is attached to the waterproof pan in advance. In this way, when the waterproof pan is placed on the floor slab, it is not necessary to perform a difficult positioning operation between the separately fixed drain trap or the like and the drain port (mounting hole) of the waterproof pan.

Further, in the present invention, since the drainage trap or the like is attached to the waterproof pan in advance, it can be firmly fixed. Further, when installing the waterproof pan, since the drain trap or the like and the drain port of the waterproof pan are not connected with excessive force, the problem that the part is distorted and water leaks can be solved.

According to the present invention , the filling material is filled in the through hole after the opening on the back surface side of the waterproof pan of the through hole is closed with the back plate after the backfilling process. It can be easily packed into the through hole.

According to a second aspect of the present invention, the through hole is closed and the upper surface is finished, whereby the portion of the through hole formed in the waterproof pan can be finely finished, and the aesthetic feeling is improved. be able to.

[0013]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. 2 shows a state in which a waterproof pan is installed. In the figure, reference numeral 10 denotes a waterproof pan installed on a floor slab 12, and a drain trap 16 is fixed to a drain port 14 by a fastening ring 18.

The drain trap 16 enters a through hole 20 as a recess formed in the floor slab 12. Through hole 2 in floor slab 12 with drain trap 16 inserted
0 is backfilled with mortar 22.

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

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

FIGS. 1 and 3 show a specific procedure of a method of installing the waterproof pan 10. FIG. As shown in the figure, in this method, the drain trap 16 is attached to the waterproof pan 10 having the through hole 24 formed therein, and the drain trap 16 is placed in the through hole 20 of the floor slab 12 while the through hole 24 is kept open. The waterproof pan 10 is placed on the floor slab 12 so as to enter the 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 hardened, and the through hole 20 is closed with the mortar 22. Then, the through hole 24 of the waterproof pan 10 used for backfilling the mortar 22 is closed.

This processing is performed according to the procedure shown in FIG.
That is, an adhesive 30 is applied to a back plate 28 made of a vinyl chloride resin or the like, and the adhesive 30 is hung from the upper side of the waterproof pan 10 with a wire or the like through the through-hole 24, and this is pulled up. in to the backplane
Rate 28 is fixed to the back surface of the waterproof pan 10,
Close the opening at one end.

Thereafter, the elastic putty 26 before curing is filled in the through hole 24, and the through hole 24 is closed. Thereafter, the elastic putty 26 is cured for a predetermined time. Elastic putty 26 this time, do not give rise for exhibiting rubber elasticity like after hardening, the cracks or internal elastic putty 26 between the through-hole 24 the inner surface and the elastic putty 26 by the curing reaction.

Then, the upper surface portion of the through hole 24 closed with the elastic putty 26 is finished. Various patterns are possible as the finishing process. FIG. 4 shows an example of the pattern.

FIG. 3A shows an example in which a tile 34 is applied to the upper surface of a waterproof pan with an adhesive 32 to perform a finishing process. FIG. This is an example in which 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 at a portion hidden under a bathtub or a toilet.

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

Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention allows a sewage pipe for discharging sewage from a toilet bowl to enter a recess formed in a floor slab, and The present invention can be implemented in various modified forms based on the knowledge of those skilled in the art without departing from the gist of the present invention, such as when the waterproof pan is installed in a connected state to the waterproof pan.

[Brief description of the drawings]

FIG. 1 is an explanatory view of main steps of a method of installing a waterproof pan according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the waterproof pan installed state.

FIG. 3 is an explanatory view of another step of the method in the embodiment.

FIG. 4 is a diagram showing an example of a method of finishing a surface portion of a through hole formed in a 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 trap20 through holes (recesses)  22 mortar 24 through hole 26 elastic putty 28 back plate 34 tile 36 plate

Claims (2)

(57) [Claims] When installing a waterproof pan on a floor slab, a pipe end member such as a trap and a sewage pipe housed in a recess formed in the floor slab is attached to the waterproof pan in advance, and Forming a through hole in the waterproof pan in the vicinity of the mounting position of the member, performing backfilling of the recess through the through hole after the waterproof pan is placed in a state where the pipe end member enters the recess, Thereafter the through
After closing the opening on the back side of the through hole with the back plate
Installation waterproof pan, characterized in that closing process the through-holes filled with predetermined filler through hole. 2. A method for installing a waterproof pan on a floor slab.
And a trap housed in a recess formed in the floor slab.
Attaching the pipe end member such as a pump and sewage pipe to the waterproof pan in advance
In the vicinity of the mounting position of the pipe end member.
A through hole is formed in the waterproof pan, and the pipe end member is
After leaving the waterproof pan in a state of getting inside, the penetration
The recess is backfilled through the hole, and then
After closing the through hole of the water pan with a filler,
It is characterized in that a finishing material is fixed to the surface
How to install a waterproof pan.