JPH07310447A - Executing method of prefabricated bathroom - Google Patents

Abstract

PURPOSE:To greatly improve the extent of heat insulating property of a bathtub and a wash place, and simultaneously shorten a construction period and eliminate a fear of leak of water as well as to make a feeling of depth so as to be securable. CONSTITUTION:An earth floor 98 is graded in making a door sill 102 as the reference, and mortar 104 is spread over this graded earth floor 98, thereby creating a horizontal base standardized with the door sill 102. Plural bedsill blocks made of foamed plastics are set up on the base of this created mortar 104, a foamed plastic tub receiver is set up with each bedsill block as the support member, and the surface of an inner wall of a bathroom and the floor surface of a wash place made of foamed plastics are all covered with a waterproof sheet 105 spreading. A specified drainage slope is installed on a floor surface of the wash place covered with the waterproof sheet 105, spreading another mortar 106. Subsequently tiles are set to the wash place spread by the mortar 106, the inner wall covered with the waterproof sheet 105 and an outer surface exposed part of the tub receiver 31, respectively. Then a bathtub is inserted into this tub receiver 31 and secured tight.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of constructing a prefabricated bathroom suitable for new construction and remodeling of a single-family wooden house.

[0002]

2. Description of the Related Art Generally, a conventional full-scale bathroom for a wooden single-family house has a basic structure of tiled mortar, which requires a long construction period and is expensive.
You can freely design the shape, size, and layout of the bathtub and washroom. You can also select the bathtub such as tiled, stainless steel, or cypress structure, and you can get a solid feeling. However, on the other hand, the bottom of the bathtub and washroom is generally exposed in the soil,
In the winter and cold regions, cold air is directly transmitted, and the hot water temperature in the bathtub is apt to decrease, and there is a problem that the washing place becomes cold. In addition, there is a problem in waterproofness, and there is also a problem that the base and joists are likely to rot due to water leakage from a washing place or a wall.

[0003] In recent years, therefore, bathrooms using the unit bath method, which is excellent in waterproofness and airtightness, has a shorter construction period than conventional construction methods, and is cheap in construction cost, have been widely used. However, this unit bath method assembles floor units, wall units, bathtubs, etc., made of synthetic resin, which were factory-manufactured in advance with predetermined standard dimensions, to each other, and there is almost no freedom in the design of the bathroom, and the I can't get a feeling. In addition, since there is no difference from the conventional method in that the bottom of the bathtub or washroom is exposed to the soil, the hot water temperature in the bathtub tends to drop in winter or cold regions, and problems such as cooling of the washroom have been solved. Absent.

Under these circumstances, various techniques have been proposed for improving the heat retaining property of the bathtub, the washing room, or the bathroom as a whole. For example, as a technique for preventing a decrease in the temperature of hot water in a bathtub, a technique of floating a heat insulator in which a surface of a cylindrical core material such as styrofoam is covered with a heat-resistant resin or the like on the surface of the hot water in the bathtub (Actual development Sho 63, 197483) No.), or
A technique is provided in which an upper lid and an inner lid made of a plate-shaped heat insulating material made of closed-cell foam are provided, the inner lid is floated on the molten metal surface, and the upper surface of the bathtub is covered with the upper lid (see Japanese Utility Model Publication No. 21788/1993). Proposed.

As a technique for keeping the bath itself warm, a technique for wrapping the bathtub body with a sheet-shaped heat insulating material which is in the shape of a bag by being connected to each other by a connecting tool such as a fastener or a hook (Actual development: 149467). (See Japanese Laid-Open Patent Publication No. 11), or a technique in which foamed particles made of a styrene-maleic anhydride copolymer resin are adhered to the outer surface of the bath in a layered manner (Act.
(See Japanese Patent Publication No. 183783), a technique of covering the outer surface of the bathtub with a slightly hard foaming insulating material made of a semi-heat resistant urethane foam material (see Japanese Utility Model Publication No. 183783/1987), Technology of forming with low material and covering the outer peripheral surface with heat insulating material such as styrofoam.
No. 790), a bathtub body has a double structure consisting of a rectangular outer tub and an inner tub with a bottom surface formed on a curved surface that conforms to the sitting posture of the human body, and a technique for injecting styrofoam into the heat insulating space between the two (actual opening) (See Japanese Patent Publication No. 154690 in 1983), a technique of wrapping the bottom portion and the peripheral wall portion of the bathtub body with a heat insulating material such as a styrofoam in the shape of a rectangular box (see Japanese Utility Model Publication No. 16181 of Kaikai Hei 2), and a box-shaped synthetic resin material. There has been proposed a technique (see Japanese Patent Laid-Open No. 140118/1990) for filling a bath into the formed bath receiving material.

Further, as a technique for keeping the whole bathroom warm, a technique for filling an insulating foam space between the main body of the bath unit and the outer tub covering the surroundings and a lower part thereof with an installation foam base and an injection foam insulation layer (actually developed) (Refer to Japanese Patent Publication No. 134489 of 1987) or the base structure below the bath bottom and the bathroom floor from above, the mortar layer, the heat insulating layer made of a non-water-absorbing synthetic resin foam having a closed cell structure, and the tub as a mortar layer. Technology for keeping the floor of the bathroom warm (see Japanese Utility Model Publication No. 104169/1992), heat insulating plates are installed at the bottom of the bathtub and under the floor of the washing room, and a heat conduction plate is provided from the vicinity of the outer periphery of the bathtub to the inside of the floor of the washing room. A technique for keeping the washing room warm (see Japanese Patent Application Laid-Open No. 196240/1993). A foam resin plate covers the lower part of the frame supporting the unit bath to block cold air under the floor and keep the bathroom warm. Promote technology (JP-5 years 59,824
(See Japanese Patent Publication) and the like have been proposed.

[0007]

By the way, the prior arts described in the above publications can be applied only to a unit bath because the measures against water leakage are insufficient, although the bathtub, the washing place, etc. can be kept warm. It is hard to say that it is a sufficient solution, because there are problems that it is difficult to obtain a solid feeling, and that it takes time and effort to carry out heat insulation treatment.

[0008] Therefore, the present invention provides a method of constructing a prefabricated bathroom which can significantly improve the heat retaining properties of a bathtub and a washing room, has a short construction period, is free from the risk of water leakage, and provides a solid feeling. With the goal.

[0009]

For this purpose, a method of constructing a prefabricated bathroom according to the present invention comprises a soil leveling step for leveling the soil with reference to the leveling and a mortar spraying on the leveled soil. A dry base formation process for forming a horizontal base based on the above, and a plurality of base blocks made of foam resin are installed on the base of the formed mortar, and each base block is used as a support member for the tab receiver made of foam resin and Insulation process of installing the washing floor support plate, waterproofing process of covering the surface of the wall board and the washing resin floor receiving surface made of foam resin with a waterproof sheet, and the washing floor receiving surface covered with the above waterproof sheet A mortar installation process where a mortar is installed by providing a drainage gradient, and a mortar installation process above, a mortar installation place, a wall board covered with a waterproof sheet, and a dry tile where a dry tile is placed on the exposed external surface of the tab receiver. And yl tension step, is a basic means further comprising a bathtub installation step of inserting fixing the tub in the receptacle above the tab.

Here, the concrete means is that the base block has a combined structure of a plurality of U blocks having a U-shaped cross section and a cutting block obtained by cutting the U blocks.

The upper shoulders of the U blocks are
A concrete means is to provide a notch groove for fitting and supporting the washing floor support plate, and the notch groove also serves as a corner groove fitting groove fixed to the wall board. I am trying.

Further, as a concrete means, each U block for supporting the washing floor floor receiving plate by fitting it into the notch groove is installed on the base of the mortar with its opening facing down.

On the other hand, the tab receiver has a specific structure in which the tab receiver halves are divided into two along the longitudinal direction.

Here, the base block made of the foamed resin,
The tub support and washroom floor support plate are made of styrene resin,
Factory-produced by in-mold foaming, extrusion molding, etc., using a foaming resin such as phenolic resin, urea resin, urethane resin, etc. as a material, it has a very small specific gravity and is lightweight, yet has sufficient compressive strength. , With particularly high thermal insulation.

[0015]

In the method of constructing a prefabricated bathroom according to the present invention which employs the above-mentioned basic means, the lower part of the bathtub is installed on the base block installed on the base of the mortar formed on the earth and the base block. Insulation is performed by the tub holder that is installed, and the lower part of the washroom is heat-insulated by the base block and the washroom floor support plate installed to support the base block.

[0016] Here, the heat insulation treatment process is simple in that each base block, tab receiver, and wash floor support plate are sequentially installed on the mortar base formed on the soil by the dry base formation process. is there. In addition, each base block, tub support, and wash floor support plate are made of foam resin, have a very small specific gravity, are ultra-lightweight, and have elasticity. It is safe without being injured even if dropped to your feet.

Since dry tiles are put on the surface of the washing room, the surface of the wall board, and the exposed portion of the outer surface of the tub holder by the dry tile construction method, the bathroom has a heavy feeling despite the short construction period.

Since the surface of the wall board covered with the dry tile and the upper surface of the wash floor receiving surface are covered with the waterproof sheet, there is no risk of water leakage.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the accompanying drawings.

FIG. 1 and FIG. 2 are perspective views showing block members and the like used in the heat insulating treatment step in the method of constructing an assembled bathroom according to one embodiment. In FIG. 1, reference numeral 11 is a front U block, 12 is a left U block, 13 is a right U block, 14 and 15 are center U blocks, 16 is a tail side block, 17 is a head side block, 18 is a tab receiving bottom, 19 Is a head top, 20, 21, and 22 are transfer blocks, and 23 is an end treatment material, and these blocks constitute a unit for filling a space from the base of the bathroom to the floor.

Further, in FIG. 2, reference numeral 31 designates a tab receiver and 3
2 is a left apron panel, 33 is a left apron support panel, 34 is an apron side panel, 35 is a right apron panel, 36 is a right apron support panel, 37 is an apron side panel, 38 is tail flex, 39 is top flex, respectively. There is. With these members, FIG.
A unit for fixing the bathtub placed on the base unit shown in is constructed.

In FIG. 3, the plurality of blocks shown in FIG. 1 are spread over the soil of the bathroom, and the base unit is assembled so that the upper surfaces of the blocks are at the same height. The figure shows a state in which is mounted on the base unit. The bathtub receiving unit is assembled from the disassembled state shown in FIG. 2 and is mounted on the upper surface of the tab receiving bottom 18.

Each of the block members has a tail flex 3
8. Except for the top flex 39 (the tail flex 38 and the top flex 39 are made of a hard and thin synthetic resin), they are made of a polystyrene foam material. This material is, for example, foamed in a frame by steam heating using a granular styrene resin impregnated with a foaming agent such as butane or pentane, or extruded, or formed in a block shape or a plate shape. It is made of styrofoam equivalent to JIS 9511A obtained by secondary processing of the above with a hot wire cutter or the like. Each of these block members has a unit volume weight of 10 kgf / m3, an extremely small specific gravity and an ultralight weight, and a compressive strength of 2% to 9 tf / m3 with a compression strain of about 1%. It has strength and particularly high heat insulation.

The front U block 11, left U block 12, right U block 13, center U blocks 14, 15, tail side block 16 and head side block 17, which are the main blocks of the base unit, are made of common materials. Has been formed. This is because it is possible to mass-produce each block at a low cost by sharing a mold when manufacturing each block. Figure 4,
FIG. 5 shows a common material block 45 as a material before molding these blocks, and FIG. 5 is a cross-sectional view taken in the direction of XX in FIG. The common material block 45 has a peculiar cross section, and a notched groove 46 is formed by cutting a long and slender material having a quadrangular cross section into a rectangular shape in the left and right corners thereof, and the bottom surface thereof. A U-shaped cavity 47 having an inverted U-shape is formed from the top to the top. Therefore, in the cross-section (FIG. 5) of the common material block 45, the left and right corners of the square are scraped off (for example, removed so as to have a width of 20 mm and a depth of 30 mm), and a dome-shaped tunnel is formed upward from the lower surface. The U-shaped cavity 47 having the shape is scraped off, and the left and right sides are the support legs 48 that hang vertically. The height and width of this common material block 45 are set to about 335 mm,
The length is set to an appropriate length (for example, 2 to 3 m).

The common material block 45 is made to have the cross-sectional shape shown in FIG. 5 by pouring the material into a mold in a production plant or the like to foam or extruding from the drawing hole having the cross-sectional shape shown in FIG. Have been formed. Since this common material block 45 is formed of styrofoam as the day before, it can be cut into a required length and shape with a hot wire cutter or a blade. Then, the cut member can be heat-processed or bonded by an adhesive to be processed into a member having a required shape.

The front U block 11 can be formed by using the common material block 45. The front U block 11 has a shape in which the common material block 45 is cut to a required length, and the length thereof is about 10
In this embodiment, it is set to be 00 mm.

The center U blocks 14 and 15 are formed by using a common material block 45 like the front U block 11. These center U blocks 14, 1
Reference numeral 5 is a shape obtained by cutting the common material block 45 into a required length, and the length is set to be about 650 mm in this embodiment.

The left U block 12 is a common material block 45.
The left U block 12 is composed of two members, a left long member 51 and a left short member 52, as shown in FIG. This left long member 51 is a common material block 45.
Is cut into a length of about 985 mm, and the left end in FIG. 6 is cut from above and below in a counterclockwise direction at an angle of 45 degrees, and a cut surface a inclined with respect to the length direction is formed. .
In addition, the left short member 52 has a common material block 45 of about 335
It was cut into a length of mm, and the right end in FIG.
It is cut from above and below in a clockwise direction at an angle of degrees, and a cut surface b that is inclined with respect to the length direction is formed. The left long member 51 and the left short member 52 shown in FIG. 6 are brought into contact with each other so that the cut surfaces a and b are in close contact with each other, and the two are joined at the cut surfaces a and b, and the left U block 12 shown in FIG. Assemble to. Therefore, the left long member 51 and the left short member 52 are connected by the connecting line c, the left U block 12 has a shape in which the axes thereof are orthogonal to each other, and the U-shaped cavity 53 is bent into an L shape at the lower portion of the left U block 12. However, the space has a continuous structure. Further, on the upper surface of the left U block 12, a stop groove 54 whose one end is bent at a right angle by the left short member 52, and a turning groove 55 which is continuous with two sides of the left U block 12 in an L shape are formed. become.

The right U block 13 is a common material block 45.
The right U block 13 is composed of two right long members 58 and right short members 59, as shown in FIG. This right long member 58 is a common material block 45
Is cut into a length of about 985 mm, and the right end in FIG. 8 is cut from above and below in a clockwise direction at an angle of 45 degrees, and a cut surface d inclined with respect to the length direction is formed.
Further, the right short member 59 has a common material block 45 of about 335
It was cut to a length of mm, and the left end in FIG.
It is cut from above and below in a counterclockwise direction at an angle of degrees, and a cut surface e inclined with respect to the length direction is formed. The right long member 58 and the right short member 59 shown in FIG.
Are contacted so as to be in close contact with each other, the two are joined by the cut surfaces d and e, and the right U block 13 shown in FIG. 9 is assembled. Therefore, the right long member 58 and the right short member 59 are connected by the connecting line f, the right U block 13 has a shape in which the axes thereof are orthogonal to each other, and the U-shaped cavity 60 is L below the right U block 13.
Although it is bent in a letter shape, the space has a continuous structure. Further, on the upper surface of the right U block 13, a stop groove 61 whose one end is bent at a right angle by the right short member 59 and a turning groove 62 in which two sides of the right U block 13 are continuous in an L shape are formed. become. It should be noted that the drain pipe hole 63 is provided on the side surface of the right long member 58 at a position opposite to the right short member 59.
Is penetrated.

The tail side block 16 is formed by using a common material block 45. The tail side block 16 is composed of a tail member 65 and a closing member 66 as shown in FIG. This tail member 65
Is a common material block 45 cut into a length of about 715 mm, and the left end in FIG. 10 is cut clockwise at an angle of 45 degrees, and then cut to be perpendicular to the length direction. A cut face g having a letter shape is formed,
The plane of the cut surface g is about 80 mm deep from the left end of the tail member 65 before being cut out. Also, the closing member 6
6 is the common material block 45 cut into a length of about 335 mm, the left end of which is cut in a counterclockwise direction at an angle of 45 degrees in FIG. 10, and then becomes parallel to the length direction of the common material block 45. A cut surface h having a V-shape is formed. The thickness of the closing member 66 is set to be about 80 mm. The tail member 65 and the closing member 66 shown in FIG. 10 are brought into contact with each other so that the cut surfaces g and h thereof are in close contact with each other, and the cut surfaces g and h are joined together to be assembled into the tail side block 16 shown in FIG. . This assembled tail side block 1
In FIG. 6, one end of the U-shaped cavity 68 has a rectangular shape closed by the closing member 66, and the two sides of the tail side block 16 are formed with a continuous groove 67 having an L shape.

The head side block 17 is formed by using a common material block 45, and the tail side block 16 is composed of a head member 71 and a stopper member 72 as shown in FIG. This head member 71
Is a common material block 45 cut into a length of about 715 mm, and the left end in FIG. 12 is cut clockwise at an angle of 45 degrees, and then cut to make a right angle with the length direction. A cut surface k in the shape of a letter is formed,
Further, it is cut linearly so as to be parallel to the length direction. Therefore, the head member 71 has a shape in which half of the common material block 45 remains, and has a width of about 190 mm. Further, the stopper member 72 is the common material block 4
5 is cut into a length of about 335 mm.
The right end is cut in a clockwise direction at an angle of 45 degrees, and then cut so as to be parallel to the length direction of the common material block 45 to form a “m” -shaped cut surface m. The thickness of the stopper member 72 is set to be about 80 mm. Further, hot water supply water pipe holes 74 are vertically penetrated at two positions on the upper surface of the head member 71, and drainage pipe holes 75 are horizontally penetrated at the side surfaces of the stopper member 72. The head member 71 and the stopper member 72 shown in FIG.
Are brought into close contact with the cut surfaces k and m, the cut surfaces k and m are joined together, and the head side block 17 shown in FIG. 13 is assembled. In this assembled head side block 17, the entire outer shape is bent into an L-shape, and the surrounding groove 7 continuous in an L-shape is formed around the outer shape.
3 has been formed.

The tab receiving bottom 18 shown in FIG. 14 is the bathtub 4
It acts to receive the bottom of 0, and the opening has a "U" shape with the top facing upward, and both sides are open.
Therefore, it has a gutter shape with both sides bent, and its height is about 335 mm, width is about 715 mm, and length is about 10 mm.
It is set to 00 mm. And this tab receiving bottom 1
A cutout groove 77 is formed at one of the outer corners of the standing side wall of FIG.

Next, the head top 19 is shown in FIG. 15, and this head top 19 comprises a wall member 81 and a pipe retainer 82. The wall member 81 has a recess 83 formed from one side surface toward the center thereof by a material of cubic polystyrene foam having a height of about 335 mm, a length of about 660 mm and a thickness of about 145 mm.
The central part is thin. A U-shaped insertion groove 84 is opened downward from the center of the upper surface of the wall member 81, and a semicircular groove 85 for contacting a drainage pipe is formed in the center of the bottom of the insertion groove 84. The pipe retainer 82 has a slightly square shape, and the width and height thereof are set to be substantially the same as that of the insertion groove 84. The center of the lower surface of the pipe retainer 82 is a semicircular groove 8 for contacting a drainage pipe.
6 is formed.

The transfer blocks 20, 21, and 22 are used by cutting a styrofoam thick plate into an appropriate length, and in the embodiment, a long plate having a thickness of about 30 mm, a width of about 150 mm, and a length of about 650 mm. It is set in a shape. The end treatment material 10 has a function of filling the notch groove 46 and flattening the surface of the base unit, and has a height of about 30 m.
m, a width of about 20 mm, and a length of about 1000 mm are set in a long rod shape.

Next, the outer shape of the tab receiver 31 is shown in FIG. 16, and in the embodiment, the height is about 350 mm so that the bathtub 40 made of heat-resistant synthetic resin having a nominal size of 1400 can be inserted.
The center of a rectangle having a width of about 715 mm and a length of about 1250 mm has a frame shape that vertically penetrates. The rectangular opening at the center of the tab receiver 31 is formed with an inclined surface 89 that is inclined slightly downward from the upper portion thereof, and is slightly narrowed downward by the inclined surface 89. Then, the positioning projections 91 and 92 are provided on the short side surfaces of the tab receiver 31, respectively.
And a continuous cutout groove 90 is formed around the upper surface of the tab receiver 31. In addition, tab holder 3
A square engagement groove 93 is cut out on the lower surface of the side surface of the short side on the left side in FIG. 12 of FIG. 1, and a square inspection lid 94 can be inserted into this engagement groove 93. 17 is a sectional view taken along the line YY in FIG. 16, and FIG. 18 is a sectional view taken along the line ZZ in FIG.

The left apron panel 32, the left apron support panel 33, and the apron side panel 34 constitute a frame structure of a positioning convex portion 91 protruding from the short side surface of the tab receiver 31. Apron side panel 34
The height and length of are set to be substantially the same as that of the positioning projection 91, and the left apron panel 32 and the left apron support panel 33 are brought into close contact with the respective end surfaces of the positioning projection 91 and the apron side panel 34. A rectangular parallelepiped with a space inside is formed. And tail flex 38
Covers an opening on the upper surface of a rectangular frame composed of the left apron panel 32, the left apron support panel 33, the apron side panel 34, and the positioning projection 91, and is a long plate-like member placed on these upper surfaces. It is a thin synthetic resin plate material.

The right apron panel 35, the right apron support panel 36, and the apron side panel 37 are constructed by a frame of positioning convex portions 92 protruding from the short side surfaces of the tab receiver 31. Apron side panel 37
The height and length of are set to be substantially the same as that of the positioning projection 92, and the right apron panel 35 and the right apron support panel 36 are brought into close contact with the respective end surfaces of the positioning projection 91 and the apron side panel 34. A rectangular parallelepiped with a space inside is formed. And top flexible 39
Covers the openings on the upper surface of the rectangular frame constituted by the right apron panel 35, the right apron support panel 36, the apron side panel 37, and the positioning projections 92, and has a long plate shape placed on these upper surfaces. It is a thin synthetic resin plate material.

In the top flexible member 39, a pipe for supplying hot water is provided which is vertically arranged in the space formed by the right apron panel 35, the right apron support panel 36, the apron side panel 37, and the positioning projection 92. A water faucet hole 96 for opening is opened. A mixing faucet (not shown) for mixing hot water and tap water to supply hot water to the bathtub 40 is attached to the faucet hole 96.

Next, each work step of the method for constructing a prefabricated bathroom according to one embodiment of the present invention will be sequentially described for the case of remodeling.

[0040] The old bathroom to be renovated as preparatory work is demolished and removed. First, as an electric work, the main breaker is dropped and the electric circuit to the old bathroom is cut off. Then disconnect the indoor wiring and remove the lighting fixtures in the old bathroom.
In addition, the connecting end of the indoor wiring must be insulated with an insulating tape.

Further, the water supply valve is plugged to stop the water supply to the old bathroom, the gas pipe is plugged to stop the gas supply to the bath kettle, and the opening of the water pipe is taped to remove dust. Block so that it does not enter. And the bath kettle in the old bathroom,
Remove the bathtub etc.

Further, the ceiling plate and the wall plate of the old bathroom are removed and removed until the field and the frame are exposed. In addition, all floorboards are removed so that the soil floor 98 is completely exposed.

When the old bathroom has been demolished, the blocks shown in FIG. 1 are arranged to assemble the base unit, but before that, the reference plane required for construction is shown in FIG.
This will be described with reference to 9. In the old bathroom, the ground floor 98 is exposed after the field and the frame are demolished, and the foundation 99 is vertically erected with blocks, concrete, etc. around the ground floor 98.
There is. A bodice 100 is placed horizontally on the upper surface of the foundation 99, and joists 101 are placed at required positions on the bodice 100 at right angles toward the dressing room. This joist 101
At the boundary between the dressing room and the bathroom (that is, the door of the bathroom) so as to be parallel to the body 100 on the upper side, there is provided a slide 102 for stepping on with a foot. The upper surface of the slide 102 is used as a reference line W for assembly, the reference line W is considered to be a zero position, and the position of each member is set by the length below the reference line W.

First, a water resistant veneer plate 108, which is a base plate for attaching a waterproof sheet, is attached to the wall of the bathroom over a range of 200 mm below the reference line W from the ceiling. Then, the sleeves of the pipes required for hot water supply, water supply, and drainage pipe work are inserted into the wall, and hot water supply for the shower and water supply pipe work are performed. Also, the door frame and window frame are fixed to the wall, and avoiding these, the wall board is stretched over the wall base. An exhaust port for a ventilation fan is opened on the wall board.

Next, as the main work, as shown in FIG. 19, the exposed soil 98 is leveled, and the surface thereof is compacted and flattened with good quality sand or the like. The horizontal position of the dirt floor 98 is set to be 470 mm below the reference line W.

After the soil 98 has been leveled, dry mortar 104 (dry mortar is used in this embodiment, but conventional mortar may be used) is applied to the surface of the soil 98.
Disperse evenly to a thickness of mm, finish it on a horizontal surface with a leveling rod such as a ruler, and create a horizontal base 450 mm lower than the reference line W. If this dry mortar 104 hardens due to moisture in the soil 98, dry mortar 1
Water supply pipes, hot water supply pipes, drainage pipes, etc. are arranged at necessary positions in 04.

After completion of the step of forming the substrate by the dry method as described above, the blocks shown in FIG.
04, the base unit is assembled, and the heat insulation process is performed. In this process, as shown in FIG. 1, the front U block 1 is sequentially installed from the entrance side of the bathroom with a door.
1, left U block 12, right U block 13, center U
The blocks 14 and 15, the tail side blocks 16, the head side blocks 17, the tab receiving bottoms 18, and the head tops 19 are installed and spread on the dry mortar 104.
That is, first of all, from the bathroom entrance side (hence,
The description of left and right is reversed in FIG. 1 and the following description.) The front U block 11 is installed laterally along the slide 102, and the left U block 12 is connected to the left end of the front U block 12 so that the left short member 52 is continuous. The right U block 13 is installed vertically, and similarly, the right U block 13 is installed vertically so that the right short member 59 is continuous to the right end of the front U block 11.

Subsequently, the center U blocks 14 and 15 are vertically installed at equal intervals between the left U block 12 and the right U block 13 in front of the front U block 11, and the transfer block 20 is left U. Block 12 and center U
Between the blocks 14, the passing blocks 21 are placed at both centers U.
The transfer block 22 is provided between the blocks 14 and 15 and between the right U block 13 and the center U block 15, and the cutout groove 4 formed at the corner of each block is provided.
6, fit in the stop grooves 54, 61. Further, between the front U block 11 and the center U blocks 14 and 15,
The end processing material 23 is embedded along the cutout groove 46.
These transfer blocks 20, 21, 22 and the end treatment material 2
3, the front U block 11 and the left U block 1
2, right U block 13, center U block 14, 15
The floor of the washing area is formed to be flat. In addition, between the right U block 13 and the center U block 15, the drain metal 25 is embedded at the tip of the transfer block 22 so as to straddle between the notch groove 46 and the stop groove 61 (transfer). The length of the block 22 is slightly shorter than the other transfer blocks 20 and 21).

Further, the tail side block 16 is continuously installed vertically in front of the left U block 12, and similarly, the head side block 17 is continuously installed vertically in front of the right U block 13. Then, the tab receiving bottom 18 is provided between the tail side block 16 and the head side block 17.
Is installed sideways, and the head top 19 is inserted between the tab receiving bottom 18 and the head side block 17. In this case, the drainage pipe for the bathtub 40 is arranged in the head side block 17, and the drainage pipe connected to this is through the opening formed by the semicircular grooves 85 and 86 of the head top 19 and the tab receiving bottom. It is pulled out to the inside of 18 side. When inserting the drain pipe, the pipe retainer 82
Is drawn out from the insertion groove 84, the lower surface of the drain pipe drawn around from the head side block 17 is brought into close contact with the semicircular groove 85, and then the pipe retainer 82 is inserted into the insertion groove 84 and the drain pipe of the drain pipe is inserted by the semicircular groove 86. The upper surface is closely attached and the drain pipe is fixed by pressing it with the semicircular grooves 85 and 86 from above and below. Further, the water supply pipe and the hot water supply pipe for the bathtub 40 are raised from the dirt floor 98 and the hot water supply water pipe hole 74 of the head side block 17 is provided.
Is pulled up through.

After the base unit is assembled in this way, the corner angle 110 shown in FIG. 20 is inserted into the notch groove of each block and fixed so that each block does not rise. The corner angle 110 is integrally formed of a light metal such as synthetic resin or aluminum, and has a planar fixing portion 111 and a push-in portion 1 having an inner hollow cross-section and being connected to one side of the fixing portion 111.
It is composed of 12 and. The fixed portion 111 and the push-in portion 112 are integrally formed in a slender shape by, for example, drawing or extruding so as to be integrated. In addition, the screw holes 11 are provided at predetermined intervals of the fixing portion 111.
3 is open.

With this corner angle 110, the tail side block 16 which is a typical example of each block is shown.
The process of fixing the will be described with reference to FIG. The side surface of the tail side block 16 is in close contact with the side surface of the base 99, and a U-shaped space opened upward is formed by the turning groove 67 and the side surface of the base 99. The push-in portion 112 is inserted into the groove 67, and the back surface of the fixed portion 111 is attached to the base 9
Fix it so that it closely contacts the 9 side. And the screw hole 113
A wood screw 114 is inserted, and the wood screw 114 is screwed into the waterproof veneer plate 108 to fix the corner angle 110. The push-in portion 112 of the corner angle 110 bites into the turning groove 67 and prevents the tail side block 16 having a light weight from rising. In this way, using the corner angle 110, the push-in portions 112 are inserted into the notch groove 46, the turning groove 55, the turning groove 62, the turning groove 67, the turning groove 73, and the notch groove 77, respectively, and each block is inserted into the dirt floor. Fix at 98.

After fixing each block by the corner angle 110, next, the waterproof sheet 105 is attached to the entire wall in the bathroom and the entire surface of the block on the washroom side. The waterproof sheet 105 is for preventing moisture in the bathroom from entering the underfloor or the wall surface, and the surface of the waterproof veneer plate 108 fixed to the wall and the floor surface of the washroom are covered with the waterproof sheet 105 ( See FIG. 19). In this case, the waterproof sheet 105 is horizontally stretched from the lowermost stage to the upper stage in order on the waterproof veneer plate 108, and the waterproof sheet 105 stretched on the floor surface of the washing room is raised along its peripheral edge along the waterproof veneer plate 108, and 108 side waterproof sheet 105
And the overlap allowance. Then, the joint portion of each waterproof sheet 105 is fixed with joints by a sealant.

After the waterproofing process is completed, the tab receiver 31 is overlaid and adhered to the upper surface of the tab receiving bottom 18, and the left apron panel 32, the left apron support panel 33, and the apron side panel 34 are framed to form the tail side. Overlaid on the block 16 and glued again, again the right apron panel 35,
The right apron support panel 36 and the apron side panel 37 are framed and laminated on the head side block 17 and bonded. And the hot water supply pipe that has been launched from the dirt floor 98,
The water supply pipes are respectively inserted through the hot water supply water pipe holes 74 of the head side block 17, and then these hot water supply pipes and water supply pipes are connected to the right apron panel 35 and the right apron support panel 3.
6. The space formed by the apron side panel 37 is vertically raised upward. In addition, the drain pipe is pulled out from the drain pipe hole 63 formed in the right U block 13 to stand up, and the drain metal 25 is connected to the upper end of the drain pipe.

Then, mortar 106 is put on the floor surface of the washing place covered with the waterproof sheet 105, and this mortar 106
The drainage gradient is set on the upper surface of the drainage at a predetermined angle so that the direction of the drainage hardware 25 is below the water. After finishing the mortar installation process, which is the basis of this washing area, left apron panel 32,
The tail flex 38 is placed so as to cover the opening of the quadrangular frame constituted by the left apron support panel 33 and the apron side panel 34 (see FIG. 3). Further, the top flexible member 39 is placed so as to cover the opening of the quadrangular frame constituted by the right apron panel 35, the right apron support panel 36, and the apron side panel 37 (see FIG. 3). The hot water supply pipe and the upper end of the water supply pipe are exposed through the water faucet hole 96 of the top flex 39, and a mixed water faucet is connected to the hot water supply pipe and the water supply pipe.

Then, as shown in FIG. 20, mortar 1
The tiles 107 are attached to the floor surface of the washing place where 06 is stretched, the waterproof veneer plate 108 covered with the waterproof sheet 105, the side surface of the tab receiver 31, the upper surface of the tail flex 38, and the upper surface of the top flex 39 (adhesion of this tile 107). Is a dry method). After that, the installation work of the ventilation fan,
Ceiling material installation work will be performed sequentially.

Then, the bathtub 40 is inserted from above into the square bath insertion hole having a large opening in the center of the tab receiver 31.
Is inserted and the bathtub 40 is fixed to the tab receiver 31. When installing the bathtub 40, the headtop 1 has already been installed.
A drainage pipe, which is piped from the semicircular grooves 85 and 86 of 9 toward the inside of the tab receiving bottom 18, is connected to the drainage hole of the bathtub 40. To fix the bathtub 40, the tub mortar is filled in the tab receiving bottom 18 in advance, and the tab receiving 31
The bathtub 40 is inserted into and the mortar is brought into close contact with the bottom surface of the bathtub 40. When the bathtub 40 is fixed to the tab receiver 31, the gap around the flange of the bathtub 40 and the cutout groove 90 of the tab receiver 31 is caulked and filled.

The bathroom constructed in this manner is shown in FIG. The bathroom is viewed from the dressing room in the direction of the bathroom. The washing room and the wall are covered with tiles 107, and the bathtub 40 is arranged below the bay 121 side. Close to the bathtub 40 and the bathtub 4
0 is provided with a mixing faucet 117 for mixing hot water and cold water and supplying it, and a mixing faucet 118 for a shower is fixed to the right wall, and this mixing faucet 118 is connected to a hand via a hose. Shower 119 is connected. An illumination lamp 121 and an exhaust port 123 are fixed to the ceiling.

According to the method of constructing a prefabricated bathroom according to the embodiment of the present invention described above, the space between the lower part of the bathtub 40 is the dirt floor 9
The tab receiving bottom 18 installed on the base of the mortar 104 formed on 8 and the tab receiving 31 installed on it are heat-insulated.
Block 11, left U block 12, right U block 13,
Since the center U blocks 14 and 15 and the transfer blocks 20, 21 and 22 installed to support them are heat-insulated, the heat retention of the bathtub 40 and the washing area is remarkably improved, and it is comfortable even in the winter and cold regions. A bathing environment is obtained.

Here, in the heat insulating treatment step, the front U block 1 is placed on the base of the mortar 104 formed on the soil 98.
1, left U block 12, right U block 13, center U
Blocks 14, 15, tail side block 16, head side block 17, tab receiving bottom 18, tab receiving 3
1, the transfer blocks 20, 21, and 22 are sequentially installed, so that the work is easy. In addition, the above-described foundation construction is a dry construction method using the mortar 104 having a composition of dry mortar, and since the tile 107 is a dry construction method, the construction period is short.

Since the dry tiles 107 are attached to the surface of the washing room, the surface of the water resistant veneer plate 108, and the exposed portion of the tab receiver 31, the interior of the bathroom becomes solid and full-scale.

Since the surface of the water resistant veneer plate 108 covered with the dry tile 107 and the upper surface of the floor of the washing area are covered with the waterproof sheet 105, there is no risk of water leakage and the base of the house is not spoiled. Therefore, the service life of the house is also improved.

The tab receiver 31 may have a structure in which the tab receiver 31 is divided into two along the lengthwise direction to manufacture a pair of tab receivers in half, and the pair of tab receivers are joined to assemble the tab receivers. Therefore, the drainage port of the bathtub 40 and the drainage pipe can be easily connected.

[0063]

As described above, according to the present invention, the lower part of the bathtub is heat-insulated by the base unit installed on the mortar base formed on the earth and the tab receiver installed on the base unit. The lower part of the washing room is heat-insulated by the above-mentioned base unit and the unit of the floor surface of the washing room installed to support it. Therefore, it is possible to remarkably improve the heat retention of the bathtub and the washing place, and it is possible to obtain a comfortable bathing environment even in the winter and cold regions.

Here, the heat insulation treatment step is intended to be assembled by sequentially installing each block, which is a unit of each base, a tab receiver, etc. on the base of the mortar formed on the soil, so that the work is easy. Is. Moreover, since the foundation of the soil is dry type using dry mortar and tiling is a dry type method, the construction period can be shortened.

Since tiles are laid on the surface of the washing room, the surface of the waterproof veneer plate, and the exposed outer surface of the tab receiver, a full-scale bathroom with a solid feeling can be obtained.

Since the surface of the waterproof veneer covered with the tiles and the upper surface of the floor of the washroom are covered with the waterproof sheet, there is no fear of water leakage and the base of the house is not spoiled, so that the durability of the house is improved. The number of years can be improved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view in which blocks used in a base unit used in an embodiment of a method of constructing an assembled bathroom according to the present invention are arranged.

FIG. 2 is an exploded perspective view showing each block used in a bathtub-fixed unit used in an embodiment of a method of constructing an assembled bathroom according to the present invention.

FIG. 3 is an exploded perspective view in which each block is arranged on a base unit used in an embodiment of a method of constructing an assembled bathroom according to the present invention before placing a bathtub fixed unit.

FIG. 4 is a perspective view showing a common material block used in one embodiment of a method of constructing a prefabricated bathroom according to the present invention.

5 is a cross-sectional view taken along the line XX in FIG. 4 of the common material block used in one embodiment of the method for constructing the assembled bathroom according to the present invention.

FIG. 6 is a perspective view showing a member of a left U block used in an embodiment of a method of constructing an assembled bathroom according to the present invention.

FIG. 7 is a perspective view showing an assembled state of a left U block used in one embodiment of a method of constructing an assembled bathroom according to the present invention.

FIG. 8 is a perspective view showing a member of the right U block used in one embodiment of the method of constructing a prefabricated bathroom according to the present invention.

FIG. 9 is a perspective view showing the assembled state of the right U block used in one embodiment of the method of constructing an assembled bathroom according to the present invention.

FIG. 10 is a perspective view showing members of a tail side block used in one embodiment of a method of constructing an assembled bathroom according to the present invention.

FIG. 11 is a perspective view showing an assembled state of a tail side block used in one embodiment of a method of constructing an assembled bathroom according to the present invention.

FIG. 12 is a perspective view showing a member of a head side block used in an embodiment of a method of constructing an assembled bathroom according to the present invention.

FIG. 13 is a perspective view showing an assembled state of a head side block used in one embodiment of a method of constructing an assembled bathroom according to the present invention.

FIG. 14 is a perspective view showing a tab receiving bottom used in one embodiment of a method of constructing an assembled bathroom according to the present invention.

FIG. 15 is a perspective view showing a state in which the members of the head top used in the embodiment of the method of constructing the assembled bathroom according to the present invention are separated.

FIG. 16 is a perspective view showing a tab receiver used in an embodiment of a method of constructing an assembled bathroom according to the present invention.

FIG. 17 is a cross-sectional view of a tab receiver used in an embodiment of a method for constructing a prefabricated bathroom according to the present invention, showing YY in FIG.
FIG.

FIG. 18 is a cross-sectional view of a tab receiver used in an embodiment of a method of constructing a prefabricated bathroom according to the present invention, showing a section ZZ in FIG. 16;
FIG.

FIG. 19 is a cross-sectional view showing the configuration of the floor surface of the washroom and the positional relationship between the reference lines in the method of constructing a prefabricated bathroom according to the present invention.

FIG. 20 is a perspective view showing a configuration of a corner angle used in an embodiment of a method of constructing an assembled bathroom according to the present invention and a block pressing state.

FIG. 21 is a perspective view showing a bathroom completed by the method for constructing a prefabricated bathroom according to the present invention as viewed from a dressing room.

[Explanation of symbols]

 11 Front U Block 12 Left U Block 13 Right U Block 14 Center U Block 15 Center U Block 16 Tail Side Block 17 Head Side Block 18 Tab Receiving Bottom 19 Head Top 20 Handing Block 21 Handing Block 22 Handing Block 23 End Treatment Material 25 Drainage hardware 31 Tab holder 32 Left apron panel 33 Left apron support panel 34 Apron side panel 35 Right apron panel 36 Right apron support panel 37 Apron side panel 38 Tail flex 39 Top flex 40 Bath tub 98 Soil 102 Slag slide 104 Mortar 106 Mortar 108 Water resistant veneer board 105 Tarpaulin 106 Tile 110 Corner Angle

Claims (6)

[Claims] 1. A soil leveling process for leveling soil between sands as a reference, and a dry base formation process for spraying mortar between the soils to create a horizontal base based on the sands. A plurality of base blocks made of foamed resin are installed on the base of the mortar, and a heat treatment process of installing the tab receiver and the wash floor floor support plate made of foamed resin with each base block as a support member, the surface of the wall board and the foamed resin Water-proofing process of covering the wash-floor floor receiving surface with a waterproof sheet, and a wash-room mortar applying step of applying a predetermined drainage gradient on the wash-floor receiving surface covered with the above-mentioned waterproof sheet, and a mortar applying step. Washing area, wall board covered with tarpaulin, dry tiling process of placing dry tiles on the exposed external surface of the tab holder, and buster inserting and fixing the bathtub inside the tab holder. A method of constructing a prefabricated bathroom, characterized by comprising a step of installing a tub. 2. Each of the base blocks has a U-shaped cross section.
The method for constructing a prefabricated bathroom according to claim 1, wherein the block and a cutting block obtained by cutting the block are combined. 3. The method of constructing a prefabricated bathroom according to claim 2, wherein a cutout groove for accommodating and supporting the wash floor support plate is provided in the upper shoulder of each U block. 4. The method for constructing a prefabricated bathroom, wherein the cutout groove also serves as a groove for fitting a corner angle fixed to the wall board. 5. The prefabricated bathroom according to claim 3, wherein each of the U-blocks for supporting the wash-floor floor receiving plate by fitting it into the notch groove is installed on the base of the mortar with the opening portion facing downward. Construction method. 6. The method of constructing a prefabricated bathroom according to claim 1, wherein the tab receiver has a structure in which a half of the tab receiver is divided into two along the longitudinal direction.