JP2000303527A - Method for repairing bathroom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a repair method using bathroom units in which existing piping for bathrooms provided in a multiple dwelling house consisting of a number of stories with floor slabs is left behind. SOLUTION: A bathroom unit 1 is assembled so that existing piping (vertical drain pipe 51, horizontal drain branch pipe 52, drain trap 53) is disposed on the outside. A drain pipe 112 extending from a drain trap 111 in a bathtub 11 and a drain pipe 122 from a drain trap 121 in a washing space 12 are assembled and connected to the horizontal drain branch pipe 52 via the drain trap 53 embedded in a floor slab.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing a bathroom of an apartment house having a multi-story floor having a floor slab.

[0002]

2. Description of the Related Art Conventionally, as a method of repairing a bathroom of an apartment house having a floor slab having a multi-story structure, as shown in FIG. 10, a drain stack 51 in a bathroom 1a and a drain trap 53 buried in the floor slab. And an existing drain pipe 4 comprising a drain horizontal branch pipe 52 from the drain trap 53 to a drain stack 51.
The method of replacing the old bathtub 11a, the floor 42, the interior finish of the wall, the ceiling, and the like by leaving the old one has been taken.

[0003] Alternatively, as a method of using a bathroom unit, a drain slab buried in the floor slab and the drain horizontal branch pipe are removed by removing a floor slab, and drainage is newly performed in accordance with the position of a drain port of the bathroom unit. Methods have been taken to rehabilitate by providing traps.

[0004]

However, in the case of repairing the existing drainage pipe, the position of the drainage trap buried in the floor slab cannot be changed. There is a problem that the improvement effect is limited in comparison with the multiplication. In addition, since the existing drainage drainpipe and the upper floor drain horizontal branch pipe are in the bathroom, the problem that the upper floor drainage sound is transmitted to the bathroom could not be solved.

[0005] In the case of the above-described method of repairing the bathroom unit, noise is generated when the floor slab is detached, and a hole penetrating the bathroom on the lower floor is opened. There was a problem that could not be used.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and provides a method of repairing a floor slab by using a bathroom unit of a bathroom provided in a multi-story apartment house having a floor slab. It is intended to provide.

[0007]

In order to achieve the above object, the invention according to claim 1 includes a drainage stack and a drainage trap buried in a floor slab, and a drainage lateral branch from the drainage trap to the drainage stack. An existing drainage pipe consisting of pipes is arranged, a repair method using a bathroom unit of a bathroom provided in a multi-story apartment building, wherein the bathroom is dismantled while leaving the existing drainage pipe, The bathroom unit is assembled so that the existing drainage pipe is disposed outside, and a drainage trap is provided in each of the bathtub and the washing place, and a drainage pipe from the bathtub drainage trap and a drainage pipe from the washing place drainage trap are assembled. A method for repairing a bathroom, wherein the method is connected to an existing drain pipe via a drain trap buried in the floor slab.

According to a second aspect of the present invention, in the first aspect, the bathroom unit includes a washing place, a bathtub, and a bathtub mounting portion having an opening into which the bathtub is fitted. A method for repairing a bathroom, comprising: assembling a mounting portion integrally at a predetermined position; and connecting a pipe of the bathroom unit using an opening of the bathtub mounting portion.

According to a third aspect of the present invention, in the first or second aspect, the washing unit of the bathroom unit has a rising portion on a bathtub side, and inspection ports are provided on both left and right sides of the rising portion. This is a feature of the bathroom renovation method.

[0010] The invention described in claim 4 is based on claim 1,
In 2 or 3, the drain trap embedded in the floor slab is a bowl trap having an outer cylinder and an inner cylinder rising from the lower end of the outer cylinder and forming a trap portion between the outer cylinder and the drain trap. A method for repairing a bathroom, comprising: removing a bowl placed on an inner cylinder, and connecting a drainage pipe of the bathroom unit to an inner cylinder of the bowl trap.

[0011] The invention according to claim 5 is based on claim 1,
In 2 or 3, the drain trap embedded in the floor slab is a bowl trap having an outer cylinder and an inner cylinder rising from the lower end of the outer cylinder and forming a trap portion between the outer cylinder and the drain trap. A method for repairing a bathroom, comprising: removing a bowl placed on an inner cylinder, filling the trap portion with a solid substance, and connecting a drainage pipe of the bathroom unit to an outer cylinder of the bowl trap. It is.

The bathroom unit according to the present invention is effective if the watertightness and airtightness are good, since water and moisture do not leak to the outside. Furthermore, it is effective to increase the weight of the wall panel and ceiling panel of the bathroom unit because the sound insulation is improved, and it is effective to use a surface decorative calcium silicate plate or a laminate of gypsum boards on the back surface of a decorative steel plate. it can.

In the present invention, the newly provided piping is
From the viewpoint of workability and earthquake resistance, it is preferable to use a synthetic resin pipe made of polyvinyl chloride or polyolefin.

[0014]

According to the method for repairing a bathroom according to the first aspect of the present invention, the bathroom unit has a drain trap in each of the bathtub and the washing place. In this way, by separating drainage,
Since each drain trap can be made smaller and the diameter of the drain pipe can be made smaller, the drain trap can be installed even when the height of the underfloor space of the bathroom unit is small, and the drain pipe can be formed with a required gradient. In addition, the bathroom is dismantled while leaving the existing drain pipe, and the bathroom unit is assembled so that the existing drain pipe is disposed outside. Therefore, in the bathroom unit that becomes a new bathroom, the drainage sound from the upper floor can be shielded by the floor, walls, and ceiling of the bathroom unit. In addition, since the existing drain pipe is concealed, the interior can be made excellent in design. Further, a drain pipe from a drain trap in a bathtub of a bathroom unit and a drain pipe from a drain trap in a washing place are assembled and connected to an existing drain pipe via a drain trap embedded in the floor slab. Therefore, drainage piping can be performed without attaching a floor slab.

In the method for refurbishment of a bathroom according to the second aspect of the present invention, the bathroom unit includes a washing area, a bathtub, and a bathtub mounting portion having an opening into which the bathtub is fitted. The opening can be used to connect the piping of the bathroom unit. That is, the drainage pipe, hot water supply, and water supply pipe can be easily installed, and the connection state can be visually confirmed.

In the method for repairing a bathroom according to the third aspect of the present invention, inspection ports are provided on both left and right sides of the rising portion on the bathtub side of the washing area. Therefore, after installation of the drain pipe of the bathroom unit, inspection and maintenance can be easily performed regardless of whether the joint of the drain trap or the pipe below the bathtub is on the left or right.

In the method for renovating a bathroom according to the fourth aspect of the invention, the bowl placed on the inner cylinder of the bowl trap is removed, and the drainage pipes of the bathroom units are connected to the inner cylinder.
Therefore, since the trap function of the bowl trap is lost,
The drainage pipe can be constructed without using a double trap. In addition, since the drain pipe is connected to the inner cylinder, the waste in the drain does not accumulate even if the trap portion of the bowl trap is not filled with solids.

In the method for renovating a bathroom according to the present invention, the bowl mounted on the inner cylinder of the bowl trap is removed, and the trap is filled with a solid material. Connect to outer cylinder. Accordingly, since the trap function of the bowl trap is lost, the drainage pipe can be constructed without using a double trap. Further, since the drainage pipe is connected to the outer cylinder, it is not necessary to insert a hand into the bowl trap and connect the pipe joint, thereby facilitating construction.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on embodiments with reference to the drawings. FIG. 1 is a horizontal sectional view showing an embodiment of a bathroom repair method according to the present invention.
3 is a II-II sectional view of a horizontal sectional view showing a method of repairing the bathroom of FIG. 1, and FIG. 3 is a III-III sectional view of a horizontal sectional view showing a method of repairing the bathroom of FIG. FIG. 4 is a perspective view showing the configuration of the bathroom unit of the present invention. 5 to 9 are longitudinal sectional views showing a method of connecting the drainage pipes of the bathroom unit of the present invention and the bowl trap buried in the floor slab.

The bathroom before renovation will be described with reference to FIG. Bathroom 1
a is provided in a multi-story apartment house having a multi-story floor having a floor slab, and includes a drain stack 51 inside, a bowl trap 53 (drain trap) buried in the floor slab, and a drain stack 51 from the bowl trap 53 on the upper floor. The existing drain pipe 5 including the drain horizontal branch pipe 52 is exposed. In addition, the structural wall 31
It is surrounded on all sides. The washing place 42 is provided with mortar on a floor slab and finished with tiles. Further, the bathtub 11a is installed on a floor that is lower than the finished surface of the washing room 42 so as to be easily straddled. A gas bath kettle 26 is provided adjacent to the bathtub 11a. So bathtub 1
The size of 1a is limited and small. The bathroom 1a is provided with an entrance 16a and a window 33.

The above-mentioned bathroom 1a before the repair has the following problems. First, since the gas bath kettle 26 is installed in the room, there is concern about safety, and the bathtub 11a is small. Further, since the drain stack 51 and the drain horizontal branch pipe 52 on the upper floor are exposed in the bathroom 1a, the interior design is poor,
In addition, the drainage sound of the upper floor may be heard.

In order to solve these drawbacks, a method for renovating a bathroom according to the present invention will be described with reference to FIGS. First, the bathroom 1a dismantles and carries out the bathtub 1a and the gas bath kettle 26 while leaving the existing drainage pipe 5. Further, the plate and the bowl of the bowl trap 53 are removed. Thereafter, preparations such as removing a mortar at a predetermined position on the floor under the washing place 42 or the bathtub 11a are performed for a newly provided drain trap or drain pipe.

Next, as shown in FIGS. 1 to 3, a heat insulating material 32 (foamed polystyrene having a thickness of 30 mm) is provided on the indoor side of the wall in contact with the outside air and the adjacent dwelling unit and on the indoor side of the side facing the outer wall of the ceiling.
Attach. Next, a drain pipe from the bathroom unit 1 is constructed in advance. That is, the drain trap 1 of the bathtub 11
Drain pipe 112 from 11 and drain trap 1 in washing place 12
The drainage pipe 122 from 21 and the drainage pipe 61 from the adjacent dressing room 6 are assembled and connected to the drain horizontal branch pipe 52 via a drain trap 53 embedded in the floor slab 41. The drain trap 111 is a P trap, and the drain pipe 112 is
A 0 mm polyvinyl chloride pipe (VP30) is used.
The drain trap 121 is a cast iron reverse bow trap,
The drain pipe 122 is a polyvinyl chloride pipe (VP) having an inner diameter of 50 mm.
50). As described above, since the low back trap is used in the washing place 12, the drain pipe of the bathroom unit 1 can be formed only by partially hanging the mortar on the floor slab 41.

Next, the bathroom unit 1 is assembled so that the existing drain pipe 5 is disposed outside. In the bathroom unit 1, as shown in FIG. 4, since the washing place 12 and the bathtub placement part 13 having the opening 131 into which the bathtub 11 is fitted are formed as separate components, the washing place 12 and the bathtub placement part 13 are separated. Are assembled integrally at a predetermined position, and then the opening 13 of the bathtub mounting portion 13 is opened.
1, the drain trap 121 is attached to the washing place 12. Here, the washing place 12 includes spacers 132, 132
Is placed on the existing washing place 42 via the tub placing section 13
Is configured to adjust the height with the legs 133. After adjusting the height of the washing place 12 and the bathtub mounting part 13, the bathtub 11
Is fitted into the opening 131, and the drain trap 111 placed at a predetermined position is attached to the drain trap hole of the bathtub 11 from the inside. Thereafter, the wall panel 14 and the ceiling panel 15 of the bathroom unit are assembled from the inside, and the water supply or hot water supply pipe is connected to the faucet fitting 21. Further, an entrance 16 is attached.

The wall panel 14 of the bathroom unit 1 has a thickness of 9 m.
In this example, a gypsum board having a thickness of 12 mm was adhered and laminated on the back surface of a surface decorative calcium silicate plate of m. The ceiling panel 15 is formed by bonding and laminating a gypsum board having a thickness of 12 mm and a foamed polystyrene having a thickness of 30 mm to the back surface of a decorative steel plate. Thus, the wall panel 14 of the bathroom unit 1
And the weight of the ceiling panel 15 are increased, so that it has excellent sound insulation properties. Even if the drainage stack 51 and the horizontal drain pipe 52 generate drainage noise on the upper floor, the sound transmitted to the bathroom unit 1 is generated. Is small and discomfort can be reduced. The window 33 is closed by the wall panel 14 and the heat insulating material 32, and has excellent heat insulating properties. Therefore, the temperature in the bathroom can be prevented from lowering, so that the user can take a bath comfortably. Lighting is performed by the lighting fixture 23,
Ventilation is performed by a ventilation fan provided on the ceiling.

The bathtub 11 can be enlarged by removing the gas bath kettle 26 so that the bathtub can be bathed comfortably. In addition, the faucet fitting 21 is connected to a water heater and water supply installed outside, and can supply hot water or water to the bathtub 11. Thus, since there is no gas bath kettle in the bathroom, the sense of security can be increased.

In addition, the bathroom unit 1 has a handrail 2
4, 25 are provided to facilitate bathing for the elderly and the physically handicapped. The bathing supplies can be stored in the mirrored storage 27 or the like except when the bathing equipment is used, so that the user can take a bath comfortably.

As shown in FIG. 3, the washing place 12 has a rising portion 124 on the bathtub 11 side, and inspection ports 123 are provided on both left and right sides of the rising portion 124. Therefore, after the installation of the drain pipe of the bathroom unit, inspection and maintenance can be easily performed regardless of whether the joint of the drain trap or the pipe below the bathtub is on the left or right.

The method of connecting the drainage pipes of the bathroom units to the bowl trap buried in the floor slab will be described with reference to FIGS. As shown in FIG. 5, the cast iron bowl trap 53 has an inner cylinder 53a that rises from the lower end of the outer cylinder 53a and forms a trap portion 53d between the outer cylinder 53a.
b, the plate of the bowl trap 53 and the inner cylinder 53
The dough placed on b has been removed. The inner cylinder 53
b has an outer diameter of about 60 mm and an inner diameter of about 50 mm. The inner diameter of the receiving port 53c at the lower part of the bowl trap 53 is about 70 mm, and a polyvinyl chloride pipe (VP50) 533 having an outer diameter of about 70 mm, which is an existing drain pipe, is inserted and fixed by bonding.

The drain pipe 532 (VP50) assembled from the bathroom unit 1 is connected to the inner cylinder 53b of the bowl trap 53 via a 90 ° diameter elbow 531a made of polyvinyl chloride. The small-diameter receptacle of the 90 ° diameter difference elbow 531a has an inner diameter of about 60 mm, and the large-diameter receptacle has an inner diameter of about 70 mm.
32 is fixed by insertion. As described above, the trap function of the existing bowl trap 53 can be eliminated by using the elbow 531a having the 90 ° diameter difference as the pipe joint. Therefore, even if the bathroom unit is provided with a drain trap, a double trap does not occur. Further, the drainage pipe 532 gathered from the bathroom unit and the existing drainage pipe 5 can be easily connected.

In FIG. 6, the inner cylinder 5 of the bowl trap 53
3b 90 ° female elbow 531 made of polyvinyl chloride
drain pipes 53 collected from the bathroom unit 1 through b
2 are connected. The receptacle of the 90 ° recommended elbow 531b has an inner diameter of approximately 70 mm, and the insertion portion has an outer diameter of approximately 50 mm which is the same as the tube diameter. The insertion portion is inserted into the inner cylinder 53b, and the drainage pipe 532 is inserted into the receptacle, and is fixed by bonding. The connection between the insertion portion and the inner cylinder 53b may be mechanically reinforced by a metal band or the like.

In FIG. 7, the inner cylinder 5 of the bowl trap 53
Insert a socket 531d having an inner diameter of approximately 60 mm into 3b,
On the opposite side of the socket 531d, a short pipe 5 having an outer diameter of about 60 mm
The drain pipe 532 from the bathroom unit 1 is connected to the short pipe 531e through a 90 ° diameter elbow 531c. They are each fixed by bonding. In this way, by combining the commercially available parts made of polyvinyl chloride, the drainage pipe 532 gathered from the bathroom unit and the existing drainage pipe 5 can be easily connected without using any dedicated parts.

In FIG. 8, the outer cylinder 5 of the bowl trap 53
A drainage pipe 532 gathered from the bathroom unit 1 is connected to 3a via a 90 ° female diameter elbow 531f made of cast iron. A male screw is provided at the insertion portion of the elbow having a diameter of 90 ° to match the female screw of the outer cylinder 53a, and these are screwed. In addition, drainage pipe 5
32 is fixed by insertion. Trap part 5
3d is filled and solidified with a mortar 54 so that dirt in the wastewater does not accumulate. As described above, since the pipe joint is connected to the outer cylinder, there is no need to insert a hand into the bowl trap and connect the pipe joint, and the construction is easy.

In FIG. 9, the outer cylinder 5 of the bowl trap 53
90 ° elbow 531 made of cast iron having a flange portion at 3a
The drain pipe 532 from the bathroom unit 1 is connected via g. The flange portion is connected to the
31 g is placed on the outer cylinder 53 a and fixed with the holding bracket 538. The holding member 538 is fixed to the floor slab 41 by bonding and concrete nails. In addition, a drainage pipe 532 is inserted into the receiving port and fixed by bonding. The trap portion 53d is filled and solidified with a mortar 54 so that dirt in the drainage does not accumulate.

Although the embodiment of the present invention has been described with reference to the drawings, the specific structure of the present invention is not limited to this embodiment, and there are design changes and the like that do not depart from the gist of the present invention. Are also included in the present invention.

For example, the bathroom unit 1 may be provided with a window. Further, as shown in FIG. 7, an extra space 7 of the bathroom 1a outside the bathroom unit 1 may be provided as a storage by providing a door 34.

[0037]

According to the method for repairing a bathroom according to the first aspect of the present invention, drainage piping of a bathroom unit can be easily performed. Further, since the drainage sound on the upper floor can be shielded, the bathroom can be used comfortably. In addition, since the existing drain pipe is concealed, the interior can be made excellent in design. In addition, drainage piping can be performed without attaching a floor slab.

Further, in the method for repairing a bathroom according to the second aspect of the present invention, by using the opening of the bathtub mounting portion, the piping can be easily constructed, and the connection state can be visually confirmed.

Further, in the method for repairing a bathroom according to the third aspect of the present invention, the right and left inspection ports on the rising portion of the washing tub on the side of the bath tub can be used to connect the drain trap under the bath tub or the joint of the pipe to the left or right. Inspection and maintenance are easy.

In the method for repairing a bathroom according to the present invention, the trap function of the bowl trap is eliminated.
The drainage pipe can be constructed without using a double trap. Further, even if the trap portion of the bowl trap is not filled with the solid matter, the waste in the drainage does not accumulate.

In the method for repairing a bathroom according to the fifth aspect of the present invention, the trap function of the bowl trap is eliminated.
The drainage pipe can be constructed without using a double trap. In addition, there is no need to put a hand in the bowl trap, and construction is easy.

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view showing an embodiment of a bathroom repair method of the present invention.

FIG. 2 is a cross-sectional view taken along the line II-II of a plan view showing a method of repairing the bathroom in FIG.

FIG. 3 is a plan view III-II showing a method of repairing the bathroom in FIG. 1;
It is I sectional drawing.

FIG. 1 is a perspective view showing a configuration of a bathroom unit according to an embodiment of a bathroom repair method of the present invention.

FIG. 5 is a longitudinal sectional view showing a method of connecting a drain pipe of a bathroom unit and a drain trap buried in a floor slab in the bathroom repair method of the present invention.

FIG. 6 is a longitudinal sectional view showing another connection method between the drain pipe of the bathroom unit and the drain trap buried in the floor slab in the bathroom repair method of the present invention.

FIG. 7 is a longitudinal sectional view showing another connection method between the drain pipe of the bathroom unit and the drain trap buried in the floor slab in the bathroom repair method of the present invention.

FIG. 8 is a longitudinal sectional view showing another connection method between the drain pipe of the bathroom unit and the drain trap buried in the floor slab in the bathroom repair method of the present invention.

FIG. 9 is a longitudinal sectional view showing another connection method between the drain pipe of the bathroom unit and the drain trap buried in the floor slab in the bathroom repair method of the present invention.

FIG. 10 is a horizontal sectional view showing a bathroom before renovation.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1a Bathroom 1 Bathroom unit 11 Bath tub 111 Drain trap 112 Drain pipe 12 Washing area 121 Drain trap 122 Drain pipe 123 Inspection port 124 Rising part 13 Bath tub mounting part 131 Opening 41 Floor slab 5 Existing drain pipe 51 Drain pipe 52 Drain horizontal branch pipe 53 bowl trap (drainage trap) 53a outer cylinder 53b inner cylinder 53d trap part 531a, 531b, 531c, 531d, 531e,
531f, 531g Pipe joint 54 Mortar (solids)

Claims (5)

[Claims] 1. A multi-layered assembly in which an existing drainage pipe consisting of a drainage stack, a drain trap buried in a floor slab, and a horizontal branch pipe from the drain trap to the drain stack is arranged. A repair method using a bathroom unit of a bathroom provided in a house, wherein the bathroom is disassembled while leaving an existing drain pipe, and the bathroom unit is assembled so that the existing drain pipe is disposed outside, A drain trap is provided in each of the bathtub and the washing place, and a drain pipe from the drain trap of the bathtub and a drain pipe from the drain trap of the washing place are assembled, and the existing drain pipe is drained through the drain trap embedded in the floor slab. A bathroom renovation method characterized by connecting to a bathroom. 2. The bathroom unit according to claim 1, wherein a washing place, a bathtub, and a bathtub placement part having an opening for fitting the bathtub are separate parts, and the washing place and the bathtub placement part are integrally assembled at a predetermined position. 2. The bathroom repair method according to claim 1, further comprising connecting the piping of the bathroom unit using the opening of the bathtub mounting portion. 3. The method of repairing a bathroom according to claim 1, wherein the washing area of the bathroom unit has a rising portion on a bathtub side, and inspection ports are provided on both left and right sides of the rising portion. 4. A bowl trap having a drain trap buried in the floor slab having an outer cylinder and an inner cylinder which rises from a lower end of the outer cylinder and forms a trap portion between the outer cylinder and the drain trap.
Remove the bowl placed on the inner cylinder of the bowl trap,
The drainage pipe of the bathroom unit is connected to an inner cylinder of the bowl trap.
Bathroom renovation method described. 5. A bowl trap having a drain trap embedded in the floor slab, the drain trap having an outer cylinder and an inner cylinder rising from a lower end of the outer cylinder and forming a trap portion between the outer cylinder and the outer cylinder.
Remove the bowl placed on the inner cylinder of the bowl trap,
The method according to claim 1, 2 or 3, wherein the trap portion is filled with a solid material, and a drainage pipe of the bathroom unit is connected to an outer cylinder of the bowl trap.