JPH0733714B2 - How to increase the size of the bathroom - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for increasing the floor space of a bathroom.

[Conventional technology]

Conventionally, when there is a desire to make a bathtub large or to make a washing area large, it is necessary to increase the size of the bathroom.

As a conventional method for increasing the floor space of a bathroom, when the existing bathroom is dismantled, the existing outer wall and the concrete foundation thereunder are removed, and the outer wall and concrete foundation of the extension section are newly established.

[Problems to be solved by the invention]

However, the conventional bathroom floor expansion method has a drawback that it takes a lot of time for removing the existing concrete foundation and newly installing the concrete foundation for the additional portion.

That is, a new concrete foundation requires a curing period for concrete and mortar, so that it is not unusual for the bathroom to be out of service for a few weeks.

[Means for solving problems]

INDUSTRIAL APPLICABILITY The present invention provides a method in which an existing foundation can be used as it is without being removed, and a bayonet-shaped extension unit composed of a sleeve wall, a front wall and a roof integrated with a floor can be used in a short period of time. The outline is to provide an opening on the outer wall of the bathroom where the floor is to be expanded, and attach a bay window-shaped extension unit consisting of a sleeve wall integrated with the floor, a front wall and a roof to the opening of the outer wall of the bathroom. , A bathroom floor expansion method is characterized in that a base plate is provided over the floor of the bayonet-shaped extension unit and the bathroom floor, and a bathtub and a washing space are provided thereon.

The bay window extension unit may be made integrally by FRP or may be made by combining wood and steel frame, but in any case it is necessary to make it in the factory in advance in order to shorten the construction period. .

Although it is not necessary to provide a window on the front wall of the bayonet-shaped extension unit, it is generally preferable that the window is provided because it is possible to illuminate the window and dehumidify the bathroom by ventilation. .

As a means for attaching the bayonet-shaped extension unit to the opening of the outer wall of the bathroom of the existing house main body, known attachment means such as nailing, welding, adhesion, joining with a bolt nut or other joining metal fittings is adopted.

As the base plate, plywood, steel plate, concrete plate, or a composite plate of these can be used, and one having high rigidity is desirable.

[Action]

In the present invention, since the bayonet-shaped extension unit including the floor, the pair of sleeve walls, the front wall and the roof is attached to the opening of the outer wall of the bathroom, the bayonet-shaped extension unit should be manufactured in advance in the factory. Therefore, the construction period can be shortened. Further, in the present invention, since the base plate is provided to extend over the floor of the bayonet-shaped extension unit and the bathroom floor, and the bathtub and the washing place are provided thereon, the load of the bathtub and the washing place is via the base plate. It is transmitted to the floor of the bay window extension unit and the bathroom floor.

〔Example〕

FIG. 1 is a cross-sectional view of an existing bathroom which is to be expanded by the method of the present invention as seen from above, FIGS. 2 and 3 are cross-sectional views showing the bathroom which is expanded by the method of the present invention, and FIG. FIG. 3 is a view seen from above, FIG. 3 is a view seen from the side, and FIG. 4 is a perspective view showing a bayonet-shaped extension unit used in the method of the present invention.

In FIG. 1, 1 is an outer wall of the bathroom, 2 is a bathtub provided in the bathroom, and 3 is a washing area.

In FIG. 3, 5 and 6 are existing concrete foundations and 7
Is the existing bathroom floor.

If the existing bathroom floor is made of concrete and the bathtub is embedded in the concrete floor, dismantling the existing bathroom will result in discarding the concrete floor together with the bathtub. If the existing bathroom floor is dismantled and discarded, a new bathroom floor will be constructed with wood.

When increasing the floor space of the bathroom shown in FIG. 1 by the method of the present invention, the outer wall 1 is cut along the two-dot chain lines A and B to provide an opening.

A bayonet-shaped extension unit 4 is attached to this opening as shown in FIGS. 2 and 3. The bay window-shaped extension unit 4 is manufactured in advance in a factory, and as shown in FIG. 4, it is composed of sleeve walls 42 and 42 integrated with a floor 41, a front wall 43 and a roof 44, and is constructed by combining wood. Has been done.

The bay window-shaped extension unit 4 and the bathroom outer wall opening are joined by using a metal fitting (not shown).

In FIG. 3, reference numeral 9 is a plywood base plate, on which a bath 2a and a washing space 3a made of FRP are provided. Incidentally, 8 and 8 are legs provided below the washing room 3a.

10 is a hot and cold water mixing tap provided above the bathtub 2a in the bathroom, and 11 is a hot and cold water mixing tap provided in the washing area 3a.

Numeral 12 is a wash mirror provided above the washing space 3a, 13 is a shower head provided above the washing mirror, and 14 is an electric lamp further provided above it.

Reference numeral 15 denotes a drain pipe, which allows the drainage from the washing place 3a.

The front wall 43 of the bayonet-shaped extension unit 4 is provided with a bathroom window 45 and a ventilation hood 46 with a built-in ventilation fan so that the ventilation fan can remove moisture in the bathroom. A pipe inspection port 47 with a lid is provided on the sleeve walls 42, 42 of the bay window-shaped extension unit 4,
The lid can be opened to check the condition of the drain pipe 15, etc. A pipe cover 48 is provided on the floor 41 of the bay window-shaped extension unit 4 so that the appearance can be adjusted beautifully.

〔The invention's effect〕

In the present invention, since the bayonet-shaped extension unit including the floor, the pair of sleeve walls, the front wall and the roof is attached to the opening of the outer wall of the bathroom, the bayonet-shaped extension unit should be manufactured in advance in the factory. Therefore, the construction period can be shortened.

In addition, since the bayonet-shaped extension unit is attached to the opening of the outer wall of the bathroom, the existing concrete foundation of the bathroom can be used as it is without the need to remove the existing concrete foundation. Since it is not necessary to newly install a concrete and mortar curing period as in the past, the construction period can be greatly shortened.

Further, in the present invention, since the base plate is provided to straddle the floor of the bayonet-shaped extension unit and the bathroom floor, and the bathtub and the washing place are provided thereon, the load of the bathtub and the washing place is via the base plate. It is distributed and transmitted to the floor of the bay window-shaped extension unit and the bathroom floor, and the load is not locally applied to the joint between the bay window-shaped extension unit and the opening of the bathroom outer wall, which is preferable. It does not matter if the material is FRP on the one hand and different materials such as wood on the other hand.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an existing bathroom which is to be expanded by the method of the present invention as seen from above, FIGS. 2 and 3 are cross-sectional views showing the bathroom which is expanded by the method of the present invention, and FIG. FIG. 3 is a view seen from above, FIG. 3 is a view seen from the side, and FIG. 4 is a perspective view showing a bayonet-shaped extension unit used in the method of the present invention. 2A: Bathtub, 3a: Washroom, 4: Bay window extension unit, 41: Floor, 4
2: Sleeve wall, 43: Front wall, 44: Roof, 9: Base plate

Claims (1)

[Claims] 1. An opening is provided in an outer wall of a bathroom to be expanded, and a bayonet-shaped extension unit composed of a sleeve wall integrated with the floor, a front wall and a roof is attached to the opening in the outer wall of the bathroom. A method for increasing the floor space of a bathroom, which is characterized by providing a base plate extending over the floor and the bathroom floor, and providing a bathtub and a washing room on the base plate.