JP6124042B2 - Waterproof pan for bathtub - Google Patents

Description

  Aspects of the invention generally relate to a waterproof pan for a bathtub.

A bathroom with a waterproof pan installed under the bathtub has been proposed.
For example, there is a thermal insulation bathtub in which a bathtub pan having a lower height than that of a bathtub is installed below the bathtub (Patent Document 1). The bathtub pan described in Patent Literature 1 can prevent drainage from being stored outside the bathroom by storing drainage when drainage from the bathtub overflows from the drain pipe. However, when the temperature of the waste water from the bathtub is relatively high, steam may leak around the bathtub from a check valve that connects the bathtub pan and the drain pipe. At this time, in a bathtub pan with a low height as described in Patent Document 1, it is not possible to prevent the steam from leaking out of the bathroom.

Moreover, there exists a waterproof structure of the bathtub provided with the waterproof layer which has the height which reaches the vicinity of the upper end part of a bathtub (patent document 2). However, the waterproof layer described in Patent Document 2 is not in close contact with the bathtub. For this reason, it is impossible to prevent the steam from leaking out of the bathroom, similar to the heat insulation bathtub described in Patent Document 1.
If steam leaks out of the bathroom as it is or as condensed water, there is a risk of deteriorating the building frame.

JP 2011-143000 A JP 2008-156952 A

  This invention is made | formed based on recognition of this subject, and even if it is a narrow bathroom, it aims at providing the waterproof pan for bathtubs which can cover the circumference | surroundings of a bathtub to an upper end part.

  A first invention is a waterproof pan for a bathtub that is installed adjacent to a washing place and has a rectangular shape in plan view. The waterproof pan has a bottom surface and a side wall, and can accommodate the bathtub therein. The container has a container structure in which an upper end portion of the side wall can be brought into close contact with an outer surface of the accommodated bathtub. The container includes the bottom surface, the side wall on one short side of the bathtub, and the washing place. A main part integrally forming the side wall on the long side opposite to the side, and a split part forming at least a part of the side wall on the other short side of the bathtub, and the split part Is a waterproof pan for a bathtub, which is assembled to the main part.

  According to this waterproof pan for a bathtub, even when the building frame in which the bathroom unit is installed is narrow, the waterproof pan capable of covering the periphery of the bathtub can be installed. Therefore, even when the building housing in which the bathroom unit is installed is narrow, it is possible to prevent steam from leaking out of the bathroom as it is or as condensed water, and to prevent deterioration of the building housing. Moreover, after rotating the main part in the building frame in which the bathroom unit is installed and placing it on the bathtub mounting part, the divided parts are assembled to the main part, so that the waterproof pan can be assembled by a simpler operation. Therefore, workability can be improved.

  In a second aspect based on the first aspect, the divided part has a plurality of connection pins provided on a lower surface, and the main part is provided on the side wall on the other short side. It is a waterproof pan for a bathtub characterized by having a plurality of holes into which the divided parts are connected to the main part by inserting the plurality of connection pins into the plurality of holes. .

  According to this bathtub waterproof pan, the split parts can be assembled to the main part by inserting the connection pins into the holes. Therefore, workability can be improved.

A third invention is a waterproof pan for a bathtub that is installed adjacent to a washing place and has a rectangular shape in plan view, and the waterproof pan has a bottom surface and a side wall and can accommodate the bathtub therein. The container has a container structure in which the upper end of the side wall can be in close contact with the outer surface of the accommodated bathtub, and the side wall is deformed when a load is applied, and is restored to its original shape when the load is released. It is the waterproofing bread for bathtubs characterized by having the property to do.

  According to this waterproof pan for a bathtub, even when the building frame in which the bathroom unit is installed is narrow, the waterproof pan capable of covering the periphery of the bathtub can be installed. Therefore, even when the building housing in which the bathroom unit is installed is narrow, it is possible to prevent steam from leaking out of the bathroom as it is or as condensed water, and to prevent deterioration of the building housing. Further, when the waterproof pan is rotated in the building frame, the side wall of the waterproof pan is temporarily deformed. Therefore, excellent workability can be provided.

  Moreover, when accommodating a bathtub in the inside of a waterproof pan, if a bathtub collides with a waterproof pan, a waterproof pan will deform | transform temporarily. Therefore, a bathtub can be installed more easily. Furthermore, the waterproof pan does not have a structure assembled from a plurality of parts. Therefore, the number of steps for installing the waterproof pan is reduced, and the workability can be further improved.

  ADVANTAGE OF THE INVENTION According to the aspect of this invention, even if it is a narrow bathroom, the waterproof pan for bathtubs which can cover the circumference | surroundings of a bathtub to an upper end part is provided.

It is a typical exploded view showing the bathroom unit in which the waterproof pan for bathtubs concerning an embodiment of the invention was installed. It is a typical assembly drawing showing the bathroom unit in which the waterproof pan for bathtubs concerning embodiment of this invention was installed. It is a typical perspective view showing the waterproofing pan of this embodiment. It is a typical perspective view showing the connection part of the principal part and division | segmentation part of the waterproof pan of this embodiment. It is a typical perspective view which illustrates an example of the state where the waterproof pan of this embodiment is rotated in an architectural frame. It is a typical perspective view which illustrates an example of the state where the division parts of this embodiment are attached to the principal part. It is a typical perspective view showing the vicinity of the drain outlet of the bathtub of this embodiment. It is the typical enlarged view which expanded and looked at the drain outlet of the bathtub of this embodiment. It is a typical exploded view showing the attachment structure of the drain outlet member of the bathtub of this embodiment. It is a typical perspective view showing the waterproofing pan for bathtubs concerning other embodiments of the present invention. It is a typical perspective view showing the waterproofing pan for bathtubs concerning other embodiment of this invention. It is a typical perspective view showing the waterproofing pan for bathtubs concerning other embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a schematic exploded view showing a bathroom unit in which a waterproof pan for a bathtub according to an embodiment of the present invention is installed.
FIG. 2 is a schematic assembly diagram showing a bathroom unit in which a waterproof pan for a bathtub according to an embodiment of the present invention is installed.

The bathroom unit 10 according to the present embodiment includes a gantry 100, a washing floor (washing area) 200, a bathtub 300, and a waterproof pan 400 for the bathtub.
The gantry 100 has support legs 110 provided in the lower part, and is placed on the floor of a building frame (not shown). The washing floor 200 and the waterproof pan 400 are installed on the gantry 100.

  As shown in FIG. 1, the waterproof pan 400 is installed adjacent to the washing floor 200 and has, for example, a substantially rectangular shape in plan view from above. The waterproof pan 400 has a bottom surface 411 and a side wall 413, and has a container structure that can accommodate the bathtub 300 therein. As shown in FIG. 2, the upper end 415 of the side wall 413 can be in close contact with the outer surface of the accommodated bathtub 300. Specifically, as illustrated in FIG. 2, the upper end 415 of the side wall 413 can be in close contact with the back surface of the rim 310 of the bathtub 300 (the surface on the waterproof pan 400 side). Note that the side wall 413 whose upper end can be in close contact with the back surface of the rim 310 of the bathtub 300 is not provided on the washing floor 200 side of the waterproof pan 400.

  Here, in the present specification, the range of “close contact” includes not only the case where the upper end portion 415 of the side wall 413 of the waterproof pan 400 is in direct contact with the outer surface of the bathtub 300, but also the side wall 413 of the waterproof pan 400. The case where the upper end portion 415 contacts and adheres to the outer surface of the bathtub 300 through packing or the like is included.

As shown in FIG. 1, the waterproof pan 400 having a container structure includes a main part 410 in which a bottom surface 411 and a side wall 413 are integrally formed, and a divided part 420. The side wall 413 includes a first side wall 413a on one short side of the bathtub 300, a second side wall 413b on the long side of the bathtub 300 opposite to the washing floor 200, and a first side wall 413a. A third side wall 413c on the other short side of the bathtub 300, which is the opposite side wall. As shown in FIG. 1, the height of the third side wall 413c is lower than the height of the first side wall 413a.
The divided parts 420 form at least a part of the side wall 413 on the other short side of the bathtub 300.

The bathtub 300 is accommodated in the waterproof pan 400 and is disposed adjacent to the side of the washing floor 200.
The bathroom unit 10 according to the present embodiment is provided with a plurality of wall panels (not shown). Specifically, the wall panel is installed on the outer peripheral portion (peripheral portion) of the rim 310 excluding the washing floor 200 side of the bathtub 300. Moreover, the wall panel is installed in the outer peripheral part (peripheral part) except the bathtub 300 side of the washroom floor 200. The wall panel isolates the exterior and interior of the bathroom unit 10.

FIG. 3 is a schematic perspective view showing the waterproof pan of the present embodiment.
FIG. 4 is a schematic perspective view showing a connection portion between the main part and the divided parts of the waterproof pan according to the present embodiment.

  As shown in FIGS. 1 and 4, a plurality of connection pins 421 projecting downward are provided on the lower surface of the divided part 420. On the other hand, a plurality of holes 417 into which the connection pins 421 are inserted are provided at the upper end portion of the third side wall 413c of the main portion 410. As shown in FIG. 4, the divided part 420 is connected and assembled to the main portion 410 by inserting the connection pins 421 into the holes 417. In addition, the installation number and installation location of the connection pin 421 and the hole 417 are not necessarily limited to the installation number and installation location shown in FIG. 1, FIG. 3, and FIG.

  Here, for example, when the installer or the like carries the waterproof pan 400 into the building housing in which the bathroom unit 10 is installed, the waterproof pan 400 is in a standing state, that is, the longitudinal direction of the waterproof pan 400 is substantially vertical. Then, it is carried into the building frame from the entrance of the bathroom unit 10. And a construction worker etc. rotate waterproofing pan 400 in a building frame, and install it in the predetermined position (bathtub mounting part) on stand 100. In this case, if the height of the side wall 413 of the waterproof pan 400 is relatively high, the side wall 413 of the waterproof pan 400 comes into contact with the wall surface of the building case when the installer or the like rotates the waterproof pan 400 in the building case. There is a fear. Then, the installer or the like cannot rotate the waterproof pan 400 in the building frame, and may not be able to install the waterproof pan 400 at a predetermined position on the gantry 100.

On the other hand, the waterproof pan 400 for a bathtub according to the present embodiment includes a main part 410 in which a bottom surface 411 and a side wall 413 are integrally formed, and a divided part 420. The height of the third side wall 413 c on the other short side of the bathtub 300 is lower than the height of the first side wall 413 a on the one short side of the bathtub 300. As a result, the contractor or the like constructs the main portion 410 of the waterproof pan 400 while avoiding the side wall 413 of the waterproof pan 400 from coming into contact with the wall of the architectural cabinet even when the building cabinet in which the bathroom unit 10 is installed is narrow. It can be rotated in the housing. Then, after installing the main part 410 of the waterproof pan 400 at a predetermined position on the gantry 100, the installer or the like can connect and assemble the divided parts 420 to the main part 410. Therefore, even when the building frame in which the bathroom unit 10 is installed is narrow, the waterproof pan 400 that can cover the periphery of the bathtub 300 can be installed. Further, since the divided parts 420 can be assembled to the main portion 410 by inserting the connection pins 421 into the holes 417, workability or workability can be improved.
This will be further described with reference to the drawings.

FIG. 5 is a schematic perspective view illustrating an example of a state in which the waterproof pan of the present embodiment is rotated in the building frame.
FIG. 6 is a schematic perspective view illustrating an example of a state in which the divided parts of the present embodiment are attached to the main part.

As shown by an arrow A1 in FIG. 5, when the waterproof pan 400 is rotated in the building housing and installed at a predetermined position on the gantry 100, an arbitrary position on the third side wall 413c side is set as a substantially axis C1. Rotate. At this time, the height of the third side wall 413c is lower than the height of the first side wall 413a and the height of the second side wall 413b. Therefore, as illustrated in FIG. 5, the contractor and the like can prevent the side wall 413 of the waterproof pan 400 from coming into contact with the wall surface of the building frame even when the building frame in which the bathroom unit 10 is installed is narrow. 400 can be tilted in the building frame. In addition, the axis | shaft at the time of rotating the waterproof pan 400 is not necessarily limited to the axis | shaft C1 represented to FIG. 5, What is necessary is just the arbitrary positions by the side of the 3rd side wall 413c.
Thereafter, the waterproof pan 400 is installed at a predetermined position on the gantry 100 while keeping the bottom surface 411 of the waterproof pan 400 substantially horizontal.

  Subsequently, as illustrated in FIG. 6, the installer or the like applies a sealing material such as silicone to the upper end portion of the third side wall 413 c, and connects the connection pin 421 of the divided part 420 to the hole of the third side wall 413 c. Plug it into 417. Thereby, the divided part 420 can be connected to the main part 410 and assembled. Therefore, workability or workability can be improved.

Subsequently, the installer or the like houses the bathtub 300 in the waterproof pan 400. Then, as described above with reference to FIG. 2, the upper end portion 415 of the side wall 413 of the waterproof pan 400 can be brought into close contact with the back surface of the rim 310 of the bathtub 300. Thereby, it is possible to prevent the steam generated inside the bathroom unit 10 from leaking out of the bathroom unit 10.
This will be further described with reference to the drawings.

FIG. 7 is a schematic perspective view showing the vicinity of the drain of the bathtub of the present embodiment.
FIG. 8 is a schematic enlarged view in which the drain port of the bathtub of this embodiment is enlarged.
FIG. 9 is a schematic exploded view showing the mounting structure of the drain outlet member of the bathtub of this embodiment.
7 and 8 are schematic perspective views when viewed from the direction of the arrow A2 shown in FIG. In FIG. 8, the washing floor 200 and the waterproof pan 400 are omitted.

  As shown in FIGS. 7 and 8, a drain trap 500 is attached and fixed to the lower side of the gantry 100. As shown in FIG. 9, the drain trap 500 is attached to the through hole 431 portion of the waterproof pan 400 by the bathtub drain outlet receiving piece 510 and the fastening flange 520. That is, the bathtub drain outlet receiving piece 510 has a screw portion 511 provided on the outer periphery. On the other hand, the fastening flange 520 has a threaded portion 521 provided on the inner periphery. A portion of the through-hole 431 of the waterproof pan 400 is sandwiched between the bathtub drain outlet receiving piece 510 and the fastening flange 520, and a screw portion 511 of the bathtub drain outlet receiving piece 510 and a screw portion 521 of the fastening flange 520 are provided. By screwing, the drain trap 500 is attached to the portion of the through hole 431 of the waterproof pan 400.

  As shown in FIG. 8, a drain valve plate 530 is attached to the bathtub drain outlet receiving piece 510. The drain valve plate 530 is formed with a bathtub drain port 531 and a waterproof pan drain port 533. As indicated by an arrow A <b> 11 illustrated in FIG. 8, the water in the bathtub 300 passes through the bathtub drain 531 and is guided to the drain trap 500. Further, as indicated by an arrow A <b> 12 illustrated in FIG. 8, the water in the waterproof pan 400 passes through the waterproof pan drain port 533 and is guided to the drain trap 500.

On the washing ground floor 200, a washing ground drain 211 is formed. As indicated by an arrow A <b> 14 illustrated in FIG. 8, the water above (front side) the washing floor 200 passes through the washing ground drain 211 and is guided to the drain trap 500.
In the present specification, “water” includes not only cold water but also heated hot water.

  The drain trap 500 can receive water discharged from the bathtub 300 through the bathtub drain port 531. Further, the drain trap 500 can receive water discharged from the waterproof pan 400 through the waterproof pan drain port 533. Further, the drain trap 500 can receive water discharged from the washing floor 200 through the washing ground drain port 211. The drain trap 500 temporarily stores the water discharged through the bathtub drain port 531, the waterproof pan drain port 533, and the washroom drain port 211 to form a sealed water, from a drain pipe (not shown). It is possible to prevent bad odors and pests from entering the bathroom unit 10. Subsequently, the drain trap 500 discharges the water temporarily stored as sealed water to a drain pipe (not shown).

  That is, the water discharged from the bathtub 300 through the bathtub drain port 531 merges with the water discharged from the waterproof pan 400 through the waterproof pan drain port 533. Subsequently, as shown by an arrow A <b> 13 illustrated in FIG. 8, the merged water is guided inside the drain trap 500 to the washing place drain outlet 211 side. Subsequently, the water discharged from the bathtub drainage port 531 and the waterproof pan drainage port 533 merges with the water discharged from the washing floor 200 through the washing ground drainage port 211. Subsequently, as indicated by an arrow A15 illustrated in FIG. 8, the combined water discharged from the bathtub drain port 531, the waterproof pan drain port 533, and the washing ground drain port 211 is discharged to a drain pipe (not illustrated).

Here, a drain valve (check valve) is provided in the waterproof pan drain port 533. While the drain valve is open in a normal state, it can be closed when the pressure on the drain trap 500 side becomes higher than a predetermined value to prevent the backflow of water.
However, when the temperature of the water discharged from at least one of the bathtub drain port 531, the waterproof pan drain port 533, and the washing ground drain port 211 is relatively high, or when the water is hot water, it is generated in the drain trap 500. The steam may flow into the waterproof pan 400 through the waterproof pan drain port 533. That is, the drain valve provided in the waterproof pan drain port 533 may not close with the pressure of the steam generated in the drain trap 500.

  In this case, if the upper end portion 415 of the side wall 413 of the waterproof pan 400 is not in close contact with the outer surface of the accommodated bathtub 300, the steam flowing into the waterproof pan 400 through the waterproof pan drain port 533 is left as it is or condensed. Leaks out of the bathroom as water. Then, there is a risk of deteriorating the building frame.

  On the other hand, as described above with reference to FIGS. 1 and 2, the upper end portion 415 of the side wall 413 of the waterproof pan 400 according to the present embodiment is in close contact with the outer surface of the accommodated bathtub 300. Thereby, even if the steam generated in the drain trap 500 flows into the waterproof pan 400 through the waterproof pan drain port 533, the steam can be prevented from leaking out of the bathroom as it is or as condensed water. Therefore, deterioration of the building frame can be prevented.

  According to the present embodiment, the waterproof pan 400 that can cover the periphery of the bathtub 300, that is, the upper end portion 415 of the side wall 413 can be in close contact with the outer surface of the bathtub 300, even when the building housing in which the bathroom unit 10 is installed is narrow. Can be installed. Therefore, even when the building housing in which the bathroom unit 10 is installed is narrow, it is possible to prevent steam from leaking out of the bathroom as it is or as condensed water, and to prevent deterioration of the building housing.

Next, another embodiment of the present invention will be described.
FIG. 10 is a schematic perspective view showing a waterproof pan for a bathtub according to another embodiment of the present invention.
The waterproof pan 400a according to the present embodiment includes a shape holding portion 451, a bottom portion 455, and a side wall 457.

  The shape holding portion 451 includes a support column 452 that is erected on the gantry 100 and an upper frame 453 that is provided across the upper ends of the plurality of support columns 452. The bottom portion 455 has a bottom surface 455a and a container structure that can accommodate the bathtub 300 therein. The height of the bottom portion 455 is lower than the height of the first side wall 413a and the second side wall 413b of the waterproof pan 400 described above with reference to FIGS. 1 to 9, and is, for example, approximately the same as the height of the third side wall 413c.

  The side wall 457 is provided so as to connect the upper frame 453 and the bottom 455. The side wall 457 is formed of, for example, a rubber-like sheet, a moisture-proof sheet on which aluminum is deposited, and the like, and can be expanded and contracted in the height direction (vertical direction).

  When the installer or the like installs the waterproof pan 400a on the gantry 100, the bottom of the bottom 455, that is, the longitudinal direction of the bottom 455 is substantially vertical, and the inside of the building frame is entered from the entrance of the bathroom unit 10. Carry in. And a construction worker etc. rotate the bottom part 455 in a building frame, and install it in the predetermined position on the mount frame 100. FIG. At this time, the height of the bottom portion 455 is relatively low, and is about the same as the height of the third side wall 413c of the waterproof pan 400 described above with reference to FIGS. Therefore, even when the building housing in which the bathroom unit 10 is installed is narrow, the installers can rotate the bottom 455 in the building housing while avoiding the bottom 455 from contacting the wall of the building housing. .

  Subsequently, as illustrated in FIG. 10, the builder or the like stands the column 452 near the corner of the bottom 455. In addition, the number of installation and the installation location of the support | pillar 452 are not necessarily limited only to this. Subsequently, the installer or the like provides the upper frame 453 across the upper ends of the plurality of columns 452. Subsequently, the installer or the like carries the side wall 457 into the building frame from the entrance of the bathroom unit 10, extends the extendable side wall 457, and connects the side wall 457 so as to connect the upper frame 453 and the bottom 455. Is provided.

At this time, the side wall 457 can expand and contract in the height direction. Therefore, the installer can carry the side wall 457 into the building frame more easily and can install the side wall 457 more easily. As shown in FIG. 10, one end of the side wall 457 is attached to the upper frame 453. Therefore, even if the side wall 457 is formed of a sheet, the shape of the side wall 457 is held by the shape holding portion 451 (the column 452 and the upper frame 453).
Subsequently, the installer or the like accommodates the bathtub 300 in the waterproof pan 400a. Then, the upper frame 453 of the waterproof pan 400a can be brought into close contact with the back surface of the rim 310 of the bathtub 300.

  According to the present embodiment, the waterproof pan 400a that can cover the periphery of the bathtub 300, that is, the upper frame 453 can be in close contact with the outer surface of the bathtub 300, is installed even when the building housing in which the bathroom unit 10 is installed is narrow. Can do. Therefore, even when the building housing in which the bathroom unit 10 is installed is narrow, it is possible to prevent steam from leaking out of the bathroom as it is or as condensed water, and to prevent deterioration of the building housing. In addition, the contractor and the like can assemble the waterproof pan 400a by a simple operation of installing the shape holding portion 451 after extending the extendable side wall 457. Therefore, workability or workability can be improved.

FIG. 11 is a schematic perspective view showing a waterproof pan for a bathtub according to still another embodiment of the present invention.
The waterproof pan 400b according to the present embodiment includes a bottom surface member 461 and a side wall member (side wall) 470. The side wall member 470 can be connected to the upper surface of the bottom surface member 461.

  The bottom surface member 461 has a bottom surface 461a and has a container structure that can accommodate the bathtub 300 therein. The height of the bottom surface member 461 is lower than the height of the first side wall 413a and the second side wall 413b of the waterproof pan 400 described above with reference to FIGS. 1 to 9, for example, the same as the height of the third side wall 413c. .

  The side wall member 470 includes a first side wall member 471 and a second side wall member 473. The first side wall member 471 includes a first side wall piece 471a, a second side wall piece 471b, and a third side wall piece 471c. The second side wall member 473 includes a first side wall piece 473a, a second side wall piece 473b, and a third side wall piece 473c.

  As shown in FIG. 11, a plurality of connection pins 475 projecting downward are formed on the lower surfaces of the first side wall piece 473a, the second side wall piece 473b, and the third side wall piece 473c of the second side wall member 473. Is provided. On the other hand, a plurality of holes 477 into which the connection pins 475 are inserted are provided in the upper ends of the first side wall piece 471a, the second side wall piece 471b, and the third side wall piece 471c of the first side wall member 471. Yes. In addition, the installation number and installation location of the connection pin 475 and the hole 477 are not necessarily limited to the installation number and installation location shown in FIG.

  When the installer or the like installs the waterproof pan 400b on the gantry 100, the building housing is opened from the entrance of the bathroom unit 10 in a state where the bottom member 461 is set up, that is, in a state where the longitudinal direction of the bottom member 461 is substantially vertical. Carry in. And a construction worker etc. rotate the bottom face member 461 in a building frame, and install it in the predetermined position on the mount frame 100. FIG. At this time, the height of the bottom surface member 461 is relatively low, and is approximately the same as the height of the third side wall 413c of the waterproof pan 400 described above with reference to FIGS. Therefore, the contractor and the like rotate the bottom member 461 while tilting the bottom member 461 in the building housing while avoiding the bottom member 461 from coming into contact with the wall surface of the building housing even when the building housing in which the bathroom unit 10 is installed is narrow. Can do.

  Subsequently, the installer or the like applies a sealing material such as silicone to the upper end portion of the bottom surface member 461 and attaches the first side wall member 471 to the bottom surface member 461. At this time, although not illustrated, a plurality of connection pins projecting downward are provided on the lower surfaces of the first side wall piece 471a, the second side wall piece 471b, and the third side wall piece 471b of the first side wall member 471. It has been. On the other hand, a plurality of holes into which the connection pins 475 are inserted are provided in the upper end portion of the bottom portion. This is the same as the connection pin 475 and the hole 477 described above. Therefore, the installer or the like can connect and assemble the first side wall member 471 to the bottom surface member 461 by inserting the connection pin of the first side wall member 471 into the hole of the bottom surface member 461.

  Subsequently, the installer or the like applies a sealing material such as silicone to the upper end portion of the first side wall member 471 and inserts the connection pin 475 of the second side wall member 473 into the hole 477 of the first side wall member 471. . Thereby, the second side wall member 473 can be connected to the first side wall member 471 and assembled.

  Subsequently, the installer or the like houses the bathtub 300 in the waterproof pan 400b. Then, the upper end part of the 2nd side wall member 473 of the waterproof pan 400b can be stuck to the back surface of the rim 310 of the bathtub 300.

  According to this embodiment, even when the building frame in which the bathroom unit 10 is installed is narrow, the waterproofing can cover the periphery of the bathtub 300, that is, the upper end of the second side wall member 473 can be in close contact with the outer surface of the bathtub 300. A pan 400b can be installed. Therefore, even when the building housing in which the bathroom unit 10 is installed is narrow, it is possible to prevent steam from leaking out of the bathroom as it is or as condensed water, and to prevent deterioration of the building housing. In addition, the installer or the like can assemble the waterproof pan 400b by a simple operation of assembling the first side wall member 471 and the second side wall member 473 on the bottom surface member 461 after the bottom surface member 461 is placed at a predetermined position. it can. Therefore, workability or workability can be improved.

  Note that the number of side wall members 470 installed is not limited to the number shown in FIG. For example, the side wall member 470 may include only the first side wall member 471 or may include the first side wall member to the third or more side wall members. Further, the number of installed side wall pieces and the dividing direction are not limited to the number of installed side walls and the dividing direction shown in FIG. For example, the number of side wall pieces may be two or four or more. Alternatively, the side wall piece may not be divided. Further, the dividing direction of the side wall pieces may be, for example, the vertical direction or the horizontal direction.

FIG. 12 is a schematic perspective view showing a waterproof pan for a bathtub according to still another embodiment of the present invention.
The waterproof pan 400 c according to the present embodiment includes a bottom surface member 481 and a side wall 483.

  The bottom surface member 481 has a bottom surface 481a and has a container structure that can accommodate the bathtub 300 therein. The height of the bottom surface member 481 is lower than the height of the first side wall 413a and the second side wall 413b of the waterproof pan 400 described above with reference to FIGS. 1 to 9, for example, the same level as the height of the third side wall 413c. . On the other hand, the height of the side wall 483 is approximately the same as the height of the first side wall 413a and the second side wall 413b of the waterproof pan 400 described above with reference to FIGS.

  The side wall 483 is provided on the bottom surface member 481 and has a property of deforming when a load is applied and restoring the original shape when the applied load is released. An example of such a side wall 483 is a side wall having a bellows shape. However, the installation form of the side wall 483 is not limited to this. The side wall 483 of this embodiment should just have the property mentioned above.

  When the installer or the like carries the waterproof pan 400c into the building frame in which the bathroom unit 10 is installed, the bathroom unit 10 is in a state where the waterproof pan 400c is set up, that is, the longitudinal direction of the waterproof pan 400c is substantially vertical. From the entrance to the building. Then, the installer or the like rotates the waterproof pan 400c in the building frame and installs it at a predetermined position on the gantry 100.

  At this time, the height of the side wall 483 is approximately the same as the height of the first side wall 413a and the second side wall 413b of the waterproof pan 400 described above with reference to FIGS. Therefore, when the installer or the like rotates the waterproof pan 400c in the building frame, the side wall 483 of the waterproof pan 400c may come into contact with the wall surface of the building frame. In contrast, the installer or the like applies a load to the side wall 483 to temporarily deform the side wall 483. Alternatively, when the installer or the like rotates the waterproof pan 400c in the building housing, when the side wall 483 of the waterproof pan 400c contacts the wall surface of the building housing, the side wall 483 is temporarily deformed. Accordingly, the contractor or the like can rotate the waterproof pan 400c while tilting and rotating the waterproof pan 400c in the building frame while avoiding the side wall 483 from contacting the wall of the building frame even when the building frame in which the bathroom unit 10 is installed is narrow. Can do.

  Subsequently, the installer or the like releases the load applied temporarily, and restores the shape of the side wall 483 to the original shape. Thereafter, the waterproof pan 400c is installed at a predetermined position on the gantry 100 while keeping the bottom surface 481a of the waterproof pan 400c substantially horizontal. Note that the timing at which the load temporarily applied to the side wall 483 is released may be after the waterproof pan 400c is installed at a predetermined position on the gantry 100.

  Subsequently, the installer or the like houses the bathtub 300 in the waterproof pan 400c. Then, the upper end portion of the side wall 483 of the waterproof pan 400 c can be brought into close contact with the back surface of the rim 310 of the bathtub 300.

  According to this embodiment, even when the building housing in which the bathroom unit 10 is installed is narrow, the waterproof pan 400c that can cover the periphery of the bathtub 300, that is, the upper end of the side wall 483 can be in close contact with the outer surface of the bathtub 300 is installed. can do. Therefore, even when the building housing in which the bathroom unit 10 is installed is narrow, it is possible to prevent steam from leaking out of the bathroom as it is or as condensed water, and to prevent deterioration of the building housing. Further, when the installer or the like rotates the waterproof pan 400c in the building housing, the side wall 483 of the waterproof pan 400c is temporarily deformed. Therefore, the waterproof pan 400c according to the present embodiment can provide excellent workability.

  Further, when the builder 300 houses the bathtub 300 in the waterproof pan 400c, when the bathtub 300 collides with the waterproof pan 400c, the waterproof pan 400c is temporarily deformed. Therefore, the installer etc. can install the bathtub 300 more easily. Furthermore, the waterproof pan 400c according to the present embodiment does not have a structure assembled from a plurality of parts. Therefore, the number of steps for installing the waterproof pan 400c is reduced, and the workability can be further improved.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, dimensions, material, arrangement, etc. of the elements included in the waterproof pans 400, 400a, 400b, 400c, etc. and the installation forms of the connection pins 421, 475 and the holes 417, 477 are limited to those illustrated. Instead, it can be changed as appropriate.
Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

  10 bathroom units, 100 mounts, 110 support legs, 200 washroom floor, 211 washroom drain, 300 bathtub, 310 rim, 400, 400a, 400b, 400c waterproof pan, 410 main part, 411 bottom surface, 413 side wall, 413a first Side wall, 413b Second side wall, 413c Third side wall, 415 Upper end, 417 hole, 420 Split part, 421 Connection pin, 431 Through hole, 451 Shape holding part, 452 Post, 453 Top frame, 455 Bottom, 455a Bottom , 457 side wall, 461 bottom surface member, 461a bottom surface, 470 side wall member, 471 first side wall member, 471a first side wall piece, 471b second side wall piece, 471c third side wall piece, 473 second side wall member, 473a first side wall piece, 473 Second side wall piece, 473c Third side wall piece, 475 connection pin, 477 hole, 481 bottom surface member, 481a bottom surface, 483 side wall, 500 drain trap, 510 bathtub drain port receiving piece, 511 screw part, 520 tightening flange, 521 Threaded part, 530 Drain valve plate, 531 Bath drain, 533 Waterproof pan drain

Claims (3)

A waterproof pan for a bathtub that is installed adjacent to a washing place and has a rectangular shape in plan view,
The waterproof pan has a bottom surface and a side wall, and is a container capable of accommodating the bathtub therein, and has a container structure in which the upper end of the side wall can be in close contact with the outer surface of the bathtub.
The container is
The bottom surface;
A main part integrally forming the side wall on one short side of the bathtub and the side wall on the long side opposite to the washing place;
Split parts that form at least part of the side wall on the other short side of the bathtub;
Have
The waterproof pan for a bathtub, wherein the divided parts are assembled to the main part. The divided part has a plurality of connection pins provided on the lower surface,
The main portion has a plurality of holes provided in the side wall on the other short side and into which the connection pins are inserted,
The waterproof pan for a bathtub according to claim 1, wherein the divided parts are connected to the main part by inserting the plurality of connection pins into the plurality of holes. A waterproof pan for a bathtub that is installed adjacent to a washing place and has a rectangular shape in plan view,
The waterproof pan has a bottom surface and a side wall, and is a container capable of accommodating the bathtub therein, and has a container structure in which the upper end of the side wall can be in close contact with the outer surface of the bathtub.
The waterproofing pan for a bathtub, wherein the side wall has a property of deforming when a load is applied and restoring the original shape when the load is released.

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