JPH083277B2 - Underfloor stable construction method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an underfloor stable construction method for stably fixing a floor portion of a prefabricated indoor facility to an existing floor portion of a building.

Conventional technology In general, when renovating an existing bathroom, the existing wall is removed, the existing wall is removed, groundwork is repaired, waterproofing and moistureproofing work is performed, and then finishing work using mortar or tiles is performed. Therefore, in order to carry out the repair work, various skilled workers are required, and the construction period is relatively long (20 days to 1
Months). Therefore, you cannot take a bath during the construction period. Therefore, in order to shorten the construction period,
Although unit baths and prefabricated baths are provided, the unit baths are manufactured to a certain standard size, so they cannot be stored in the existing room as they are. However, the prefabricated bath individually designs a new bathroom that should fit in the existing bathroom, then prefabricates the bathroom into a factory production based on the design, and carries it into the site for a short period (1 to 1). 2 days)
Since the assembling work is carried out in (1), the problem of the construction period is solved, and recently, the reverberation is remarkable and the construction order is increasing.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, when the prefabricated bath is placed and fixed on the floor of the existing bathroom, the existing floor has a predetermined inclination angle around the drainage hole or has irregularities. , It is quite difficult to fix the floor stably, and it requires considerable experience and skill. That is, since the existing floor of the bathroom is usually a square or a rectangle, the floor of the prefabricated bath is also a square or a rectangle, but in such a shape, a bundle for supporting the floor is placed in the four corners. Since it is provided, it is usually difficult to stably fix the four bundles without height. It is relatively easy to stably fix a bundle of three bundles.

Then, this invention was made for the construction method for fixing the floor part of a prefabricated bath etc. to an existing floor part stably.

Means for Solving the Problems The present invention, in order to solve the above problems, in the construction for placing and fixing the floor portion of the prefabricated indoor equipment on the existing floor portion,
A height-adjustable bundle is placed on the existing floor in advance, the height of the bundle is adjusted, and a mold surrounding the bundle is placed on the existing floor. After injecting the resin material, the underfloor stable construction method is constructed in which the floor of the indoor equipment is placed and fixed on the mold.

Operation According to the above construction method, if the floor of the indoor equipment cannot be sufficiently stable only by adjusting the height of the bundle,
The foamable resin material tightly fills the space between the existing floor and the floor of the indoor equipment centering around the bundle in the form, so even if the bundle floats from the existing floor, it is supported by the filler and is stable. To do.

Embodiments The present invention will be described below with reference to the drawings. FIG. 1 shows a vertical cross section of one of the four corners where a floor 2 such as a prefabricated bath is stably fixed to the existing floor 1. In the figure, 3 is a bundle for supporting the floor 2, The washer 4 to be placed, the screw screw 5 protruding from the central portion of the washer 4, and the screw screw 5
And a nut-shaped member 7 to which a flat receiving plate is fixed, preferably orthogonal to the upper end portion. Reference numeral 8 is a waterproof resin material coated on the back surface of the core material 6, 9 is a tile stretched on the upper surface of the core material 6, and 10 is a waterproof connection portion for connecting the floor portion 2 and the wall portion 11. A filler 12 made of a foamable resin material is interposed between the existing floor 1 and the floor 2 centering around the bundle 3.

The filler 12 rotates the screw 5 when the floor 2 is mounted on and fixed to the existing floor 1 by rotating the screw 4 and the washer 4 and the floor 2.
The height of the bundle 3 is determined at each of the four corners of the floor 2 by adjusting the intervals between the two, and when the floor 2 is placed and fixed on the existing floor 1, as shown in FIGS. 2 and 3. , The molds 13 are arranged on the existing floor 1 in such a manner as to surround the bundle 3 in the center in advance, and after the foamable resin material is injected into the molds 13, the floor 2 of the indoor equipment is mounted thereon. Place and fix. The formwork 13 may be a circle having a predetermined radius, a quadrangle, or a polygon. The foamable resin material foams upon contact with air and hardens to form the filler 12. The spacing between the existing floor 1 and floor 2 is not limited to the bundle 3 but depends on the filler 12. Retained. The formwork 13 is left as it is. Therefore, even if one bundle 3 at the four corners is slightly floated from the existing floor 1 and rattles, it is supported by the filler 12 and the floor 2 does not rattle. Reference numeral 14 denotes a drain hole, which communicates with a drain hole 15 formed in the existing floor 1, but the formwork 13a is also provided around the drain hole connector 16 which connects the drain holes 14 and 15. The filling material 12 is formed in the same manner as described above through. Therefore, the floor 2 is supported on the existing floor 1 by the bundle 3 and the filler 12 at the four corners and the drain hole 14, respectively, so that the floor 2 is stably supported by the existing floor 1. Will be done.

The filler 12 is provided only locally in the bundle 3 as a center, but this is because the expandable resin material is expensive, and if the economy permits, it may be injected into the entire lower surface of the floor 2. .

Advantageous Effects of Invention According to the present invention described above, in the construction method of placing and fixing the floor portion of the prefabricated indoor equipment on the existing floor portion, a height adjustable bundle is installed on the existing floor portion in advance, The height of the bundle is adjusted and a formwork that surrounds the bundle is placed on the existing floor,
After injecting the foamable resin material into the mold, the floor of the indoor equipment is placed and fixed on the mold, so that the floor of the indoor equipment is sufficient only by adjusting the height of the bundle. If a stable state cannot be obtained, the expandable resin material fills the space between the existing floor and the floor of the indoor equipment centering on the bundle, so even if the bundle floats from the existing floor, the filling material When prefabricated indoor equipment is assembled and constructed by repairing a part of the building, it is possible to prevent one corner of the floor fixed to the existing floor from floating and rattling. It is possible to improve the quality of construction. In addition, since a simple form work is provided that encloses a bundle of floors whose height is adjusted in advance, and the foamable resin material is injected into this form frame, the cost of construction work is reduced and the efficiency is improved. Bring In addition, the foamable resin material is lightweight and easy to fill into the mold, and it is suitable for urgent work because it has the convenience of solidifying in a short time. It is most suitable as a gap filling material, and also has heat insulation and sound insulation effects. It works.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an essential part showing an example of carrying out a stable underfloor construction method according to the present invention, FIGS. 2 and 3 are explanatory views of the construction method, FIG. 2 is a plan view, and FIG. FIG. 2 is a sectional view taken along line AA of FIG. 1 …… Existing floor, 2 …… Indoor equipment floor, 3 …… Bundle, 12
…… Filling material, 13 …… Formwork

Claims (1)

[Claims] 1. In a construction for mounting and fixing a floor of a prefabricated indoor facility on an existing floor, a height-adjustable bundle is previously mounted on the existing floor, and the height of the bundle is adjusted. Then, the mold surrounding the bundle is placed on the existing floor, the foamable resin material is injected into the mold, and then the floor of the indoor equipment is placed and fixed on the mold. Underfloor stable construction method.