JPH041368A - Underfloor stable execution method - Google Patents

Abstract

PURPOSE:To prevent the shaking of an equipment, etc. while improving operating efficiency by installing forms centering around a bundle supporting the equipment, etc. placed and fixed onto an existing floor, impregnating foamable fillers into the forms and foaming and curing the fillers. CONSTITUTION:When an indoor equipment such as a bathtub is placed and fixed onto an existing floor 1, the bottom 2 of the equipment is supported by a plurality of bundles 3 while forms 13 are mounted around the bundles 3. The insides of the forms 13 are filled with a foamable resin material 12, and the material 12 is foamed and cured. Forms 13a are also set up around a drain hole connector 16, the foamable fillers 12 are impregnated similarly, and the fillers 12 are foamed and cured. Accordingly, the shaking of equipments can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a stable underfloor construction method for stably fixing the floor of prefabricated indoor equipment to the existing floor of a building.

Conventional technology Generally, when renovating an existing bathroom, the existing walls are removed leaving the floor intact, the foundation is repaired (t), waterproofing/moisture proofing work is carried out, and finishing work with mortar, tiles, etc. is carried out. I do. Therefore, various types of skilled workers are required to carry out the repair work, and the work period is relatively long (20 days to one month).

First, you will not be able to take a bath during the construction period. Therefore, in order to shorten the construction period, unit baths and prefabricated prefabricated baths are provided, but unit baths are manufactured to a certain standard size, so they can be placed directly in the existing room. It cannot be stored. However, prefabricated baths are designed to fit within the existing bathroom, and the new bathroom is individually designed.
Based on the design, a prefabricated bathroom is produced in a factory, then delivered to the site and assembled in a short period of time (1 to 2 days), which solves the problem of the construction period. Recently, the response has been remarkable and the number of orders for its construction is increasing.

Problem to be Solved by the Invention However, when mounting and fixing the prefabricated bath mentioned in 2 on the floor of an existing bathroom, the existing floor may have a predetermined inclination angle around the drainage hole or may be uneven. Therefore, it is difficult to stably fix the floor and requires considerable experience and skill.

In other words, since the existing floor of a bathroom is usually square or rectangular, it is natural that the floor of a prefabricated bath will also be square or rectangular. Because of the construction, it is usually difficult to stably fix a bundle of four without any height.It is relatively easy to stably fix a bundle of three.

Therefore, the present invention was made for the purpose of providing a construction method for stably fixing the floor of a prefabricated bath or the like to an existing floor.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention aims to solve the above-mentioned problems by placing the floor of prefabricated indoor equipment on the existing floor in advance. After placing and fixing the bundle and adjusting the height of the bundle, a formwork surrounding the bundle is placed on the existing floor, and a foamable resin material is injected into the formwork to foam and harden. , a stable underfloor construction method in which a hard filler is interposed between the existing floor and the floor of indoor equipment.

Function According to the above construction method, when the floor of the indoor equipment cannot be stabilized by adjusting the height of the bundle alone, the foamed resin material can be used to connect the existing floor and the floor of the indoor equipment. Since the spaces are tightly filled with the bundle at the center, even if the bundle floats off the existing floor, it will be supported and stabilized by the filling material.

EXAMPLES The present invention will be explained below with reference to the drawings. Figure 1 shows a vertical cross section of one of the four corners of a floor 2 such as a prefabricated bath that is stably fixed to the existing floor 1. In the figure, 3 is a bundle that supports the floor 2 and is attached to the existing floor 1. It consists of a washer 4 to be placed, a screw 5 protruding from the center of the washer 4, and a nut-shaped member 7 fixed to a core material 6 by screwing the screw 5 together.

8 is a waterproof resin material coated on the back surface of the core material 6, 9 is a tile stretched over the upper surface of the core material 6, and 10 is a waterproof connecting portion that connects the floor portion 2 and the wall portion 11. A filler 12 made of a foamable resin material is interposed between the existing floor section 1 and the floor section 2, centering on the bundle 3.

When installing and fixing the floor 2 on the existing floor 1, the filler 12 is inserted between the washer 4 and the floor 2 by rotating the screw 5.
The heights of the bundles 3 are determined at each of the four corners of the floor 12 by adjusting the intervals between them, and when the floor section 2 is placed and fixed on the existing floor section l, as shown in FIGS. 2 and 3, After placing the formwork 13 on the existing floor l in advance, surrounding the bundle 3 at the center, and placing the floor 2 on the existing floor l,
A foamable resin material is injected into the formwork 13. The formwork 13 may be circular with a predetermined radius, square, or polygonal. The foamable resin material foams when exposed to air and hardens to become the filler 12. Retained.

The formwork 13 is left as it is. Therefore, one of the bundles 3 at the four corners is slightly floating from the existing floor 1,
Even if it rattles, it is supported by the filler 12 and the floor part 2 will not rattle. Note that 14 is a drainage hole that communicates with a drainage hole 15 formed in the existing floor l, and a formwork 13a is also provided around the drainage hole connector 16 that connects the drainage holes 14 and 15. Filler 1 through
2 is formed in the same manner as above. Therefore, the floor part 2 is supported by the existing floor part 1 at its four corners and five parts of the drainage holes 14 by the bundles 3 and the filler material 12, respectively, so that the floor part 2 is stably supported by the existing floor part 1. It will be supported by the floor l.

The filling material 12 is only provided locally around the bundle 3, but this is because the foamed resin material is expensive, and if economy permits, it may be injected onto the entire bottom surface of the floor 2. .

Effects of the Invention According to the invention described above, in the construction method of placing and fixing the floor of prefabricated indoor equipment on the existing floor, the floor of the indoor equipment is placed and fixed in advance on the existing floor. After adjusting the height of the bundle, a formwork surrounding the bundle is placed on the existing floor, and a foamable resin material is injected into the formwork to foam and harden. Since a hard filler is interposed between the floor and the floor of the indoor equipment, the floor of the indoor equipment can be used in cases where a sufficiently stable state cannot be obtained only by adjusting the height of the bundle. Since the foam resin material is used to fill the space between the existing floor and the floor of the indoor equipment, centering around the bundle, even if the bundle floats off the existing floor, it will be supported and stabilized by the filling material, so the building When assembling and constructing prefabricated indoor equipment by renovating a part of the existing floor, it is possible to prevent one corner of the floor that is placed and fixed on the existing floor from floating or becoming stiff, improving the quality of this type of construction. can be achieved. In addition, it is sufficient to simply prepare a formwork that surrounds the bundle of floor parts by adjusting the height in advance, and inject the foamed resin material into the formwork, which reduces the cost of construction work. It has effects such as improving efficiency.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of the main part showing an example of implementing the two methods of underfloor stabilization according to the present invention, Figs. 2 and 3 are explanatory diagrams of the construction method, and Fig. 2 is a plan view; FIG. 3 is a sectional view taken along line A and -A in FIG. l...Existing floor, 2 Floor of indoor equipment, 3. Bundle, 12.
Filling material, 13/Formwork

Claims (1)

[Claims] (1) In construction work in which the floor of prefabricated indoor equipment is placed and fixed on the existing floor, the floor of the indoor equipment is placed and fixed on the existing floor and the height of the bundle is adjusted in advance. , place a formwork surrounding the bundle on the existing floor, inject foamable resin material into the formwork, foam and harden it, and create a space between the existing floor and the floor of indoor equipment. A stable underfloor construction method characterized by interposing a hard filler.