JP5041333B2 - Bathroom unit - Google Patents

Description

  The present invention relates to a bathroom unit in which a wash basin is installed in a bathroom, and more particularly to a wash drainage device for draining water from a wash basin.

  As a bathroom unit of a relatively small apartment house or hotel guest room, a type having a washbasin with a faucet in the bathroom is often adopted.

  As a method of draining the water used in this basin, the upper end connecting pipe part was fixed to the apron between the bathtub installed in the bathroom and the apron provided in the bathtub, and was opened on the apron surface. Some have a bathroom drainage device in which a drainage pipe is arranged and a bathroom drainage pipe connected to a washbasin installed adjacent to a bathtub is connected to the connecting pipe part (see, for example, Patent Document 1). ).

  An example in which this bathroom drainage device is applied to a half structure in which a floor and a bathtub of a washing place are integrally formed through an apron is shown in FIG. The upper end (elbow 101) of the connecting pipe portion connected to the drain trap is connected in advance at the factory to the back surface of the apron 102 using an adhesive. In addition, the flush drainage pipe 103 is also connected in advance to the elbow 101 at the factory using an adhesive. Therefore, the water leakage from this connection part is hardly considered. In the half structure, since the apron cannot be removed, the wash drainage pipe 103 is not removed from the elbow 101, which is a connection method that is possible.

  On the other hand, as a bathroom flush drainage device with a full pan structure on which a bathtub is placed on a waterproof pan laid on the entire floor, a first drain pipe for inserting a lower end into a drain outlet is provided on the back of the apron surface, The upper end of the first drain pipe faces the opened connection hole, and the other end of the second drain pipe that connects one end to the drainage fitting of the basin is fitted on the inner surface of the first drain pipe via a sealing material (For example, refer to Patent Document 2).

  In this bathroom drainage device, since it is necessary to remove the apron for inspection around the bathtub, the second drainage pipe (wash drainage pipe) is inserted into the first drainage pipe through a sealing material such as rubber packing. Only adhesive fixing is not done. Therefore, although it can be removed any number of times, when it is reattached, in some cases, the contact between the rubber packing and the second drain pipe is not good, and there is a risk of water leaking from there. However, since the waterproof pan is laid under the bathtub in the full pan structure, water does not leak outside.

  By the way, the half structure has a variation called a half divided structure. This is the same as the original half structure in that the bathtub is placed on the building floor without going through a waterproof pan, but the bathtub and the washing floor are molded separately and connected at the installation site. It is different in point. In this half-divided structure, the side of the bathtub facing the washing area is covered with a separate apron after the washing floor and the bathtub are installed at predetermined positions.

  In a unit bath of a certain size or more, it is difficult not only to integrally form the washing floor and the bathtub, but also it is difficult to carry it into the site and to handle it during installation. In order to solve this problem, the half divided structure is formed by separately forming the washing floor and the bathtub.

  However, in the half-divided structure, since it is necessary to remove the apron for memorial work or inspection, the wash drainage pipe cannot be connected to the elbow fixed to the apron using an adhesive. Therefore, if a bathroom drainage device is used that inserts the wash drainage pipe into the first drain pipe through a sealing material such as rubber packing as in the full pan structure, the rubber drainage pipe is removed while the wash drainage pipe is removed many times. There is a possibility that the contact between the packing and the drainage pipe will not be successful, and water may leak from there. In that case, since the waterproof pan is not laid under the bathtub in the half-divided structure, there is a risk of water leaking outside the room.

  Thus, since there is anxiety about a water stop about the drainage structure of a basin, the thing with a basin has not been adopted by the half division structure until now.

Japanese Utility Model Publication No.59-51870 Japanese Utility Model Publication No. 62-103872

  By the way, when remodeling a bathroom, there are many obstacles such as existing walls around. Especially in apartment houses such as condominiums, even if it is a small bathroom (even if it is a half-structured bathroom when newly constructed), considering the handling at the time of installation and installation, the washing floor and bathtub are separated The half-divided structure is convenient because it can be installed without breaking existing partition walls.

  And if the bathroom before renovation was a thing with a washbasin, naturally it is necessary to be equipped with a washbasin after remodeling, but there is a demand for attaching a washbasin newly even if it is not so.

  The present invention has been made in consideration of the above-mentioned circumstances, and even if it is a half-divided structure, it can be removed, and the wash drainage that prevents leakage from the portion where the drain pipe of the wash basin is connected to the apron It aims at providing the bathroom unit provided with the apparatus.

  In order to solve the above-described problem, the bathroom unit according to the present invention includes an apron that covers the side of the bathtub from the wash floor side and a washbasin fixed to the wall surface of the wash floor as described in claim 1. And a basin drain pipe for draining the hot water in the basin to a drain trap attached to the wash floor, the apron having the basin drain pipe Is a bathroom unit in which a through-hole is formed, and an attachment part that is attached watertight by sandwiching the apron around the through-hole from the front and back around the entire circumference of the through-hole, and the attachment part A seal member having an elastically deformable elastic portion projecting over the entire circumference toward the radially inner side of the through hole from the inner diameter of the opening surrounded by the elastic portion of the seal member The basin drain that passes through the through hole. In which the outer diameter of the tube is larger.

And preferably, as described in claim 2, the basin drain pipe has one end installed in the drain of the basin and drains hot water in the basin, and a detergent surface-side drainage pipe tub side drain pipe having one end connected to the other end of the basin side drain pipe and the external thread portion which is threaded on the tip side of fitted either tub side drain pipe And a flange member that engages with the male screw portion and cooperates with the apron around the through hole to sandwich the attachment portion of the seal member, and a surface that contacts the flange member of the attachment portion and the said male screw tip is disposed at a position where the flush, the seal member Rukoto formed of a soft member which is compressed by the pressing of the flange members is desirable.

  Next, the connecting portion between the basin-side drain pipe and the bathtub-side drain pipe is preferably an elastically deformable seal that tightly seals a gap formed therebetween as described in claim 3. One end can be fitted to the other end via the member.

In addition, preferably, the basin-side drain pipe has a tip fitted into the bathtub-side drain pipe, and the tip of the fitting portion of the bathtub-side drain pipe is the apron as described in claim 4. It is also possible to arrange it so as to be located closer to the washing place.

  Furthermore, as described in claim 5, the elastic part is preferably formed to be thin with a thickness of about 1 to 4 mm.

Still further, the male screw portion may be screwed at a position that does not interfere with the elastic portion.

  On the other hand, in order to solve the above-mentioned problem, a bathroom unit according to claim 7 includes an apron that covers the side of the bathtub from the wash floor side, a washbasin fixed to the wall surface of the wash floor, and one end of the wash unit. And a basin drain pipe for draining hot water in the basin to a drain trap attached to the washing floor, and the apron has a through-hole through which the basin drain pipe passes. The formed bathroom unit, wherein the through hole includes a mounting portion that is attached watertight by sandwiching the apron around the through hole from the front and back, and an elastic that extends from the mounting portion and covers the through hole. A seal member having a deformable elastic portion is attached, and a slit having a length shorter than the outer diameter of the basin drain pipe penetrating the through hole is formed in the elastic portion of the seal member. is there.

  According to the bathroom unit according to the present invention, even if it is a half-divided structure, it is possible to provide a wash drainage device that can be removed and prevents water leakage from a portion where the drain pipe of the wash basin is connected to the apron. .

  An embodiment of a bathroom drainage device for a bathroom unit according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is an elevation view showing an overall outline of a bathroom unit 1 including a toilet drainage device 11 according to the present embodiment.

  The bathroom unit 1 includes a wash floor 2 formed of FRP or the like, and a bathtub 3 formed separately from the wash floor 2, which are independently supported on the building floor F by supporting legs 2a, After installing through 3a, it connects with the division | segmentation floor connection material which is not shown in figure, and mutual positional relationship is fixed. And the side surface which faces the washing-room floor 2 of the bathtub 3 is obscured by the apron 4 formed separately.

  Under the water of the washing floor 2, a drain trap 5 is installed on the lower surface. The drainage from the washing floor 2 is collected, and the drainage from the bathtub 3 is also collected through the drainage elbow 6. The drainage is discharged to the outside of the bathroom unit 1.

  The wall panel 7 constituting the wall surface of the bathroom unit is erected on the outer edge around the washing floor 2, and is erected on the rim 3 b of the bathtub 3 around the bathtub 3.

  A washbasin 8 is attached to the wall panel 7 in the vicinity of the bathtub 3 on the washing floor 2, and a faucet 9 is attached obliquely above. The faucet 9 is of a mixing faucet type, and can rotate the currant to supply water / hot water to the bathtub 3 and the basin 8, and also supply water / hot water to the shower 10 by switching the water discharge destination. Can do.

  A basin side drain pipe 12 is connected to the lower part of the basin 7, and the other end of the basin side drain pipe 12 is connected to the bathtub side drain pipe 20 in the vicinity of the apron 4. The connecting portion between the basin-side drain pipe 12 and the bathtub-side drain pipe 20 is covered with a single seat. The bathtub-side drain pipe 20 descends the back surface of the apron 4 and the other end joins the drain elbow 6 and is finally connected to the drain trap 5.

  Thereby, the water used in the basin 8 is drained to the outside through the basin side drain pipe 12, the bathtub side drain pipe 20 and the drain trap 5.

  Details around A shown in FIG. 1 are shown in FIG. The bathtub-side drain pipe 20 is bent by an elbow 22 installed near the tip of the main pipe 21 of the bathtub-side drain pipe 20, and a socket 23 is connected to the tip.

  The socket 23 is attached to a basin drainage support material 42 installed on a divided floor connecting material (not shown). Thereby, the upper end position of the bathtub side drain pipe 20 is fixed.

  The socket 23 has a cylindrical tubular portion 23a and a flange portion 23b extending outward from the vicinity of the center of the tubular portion 23a. A male screw portion 23c is threaded at the tip of the cylindrical portion 23a.

  The apron 4 has an upper end sandwiched between the back surface of the rim 3b of the bathtub 3 and the reinforcing rib 3c via packings 43 and 44, and a lower end (not shown) is raised at the edge of the washing floor 2 on the side of the bathtub 3 It is constructed between the bathtub 3 and the washing floor 2 by being placed on the bank.

  The apron 4 is provided with a through hole TH, and when the apron 4 is erected at a predetermined position, the socket 23 at the tip of the bathtub-side drain pipe 20 is inserted into the through hole TH.

  The seal member 30 is attached to the through hole TH over the entire circumference of the opening. The seal member 30 includes three layers of a through packing 31, a soft member 32, and a sliding member 33.

  The through-packing 31 prevents the water in the washing area from flowing from the periphery of the opening to the back surface of the apron 4, is formed of rubber or the like, and includes an attachment portion 31a and an elastic portion 31b.

  The attachment portion 31a sandwiches the apron 4 around the through hole TH from the front and back, and attaches the seal member 30 around the through hole TH in a watertight manner. The elastic part 31b is an elastically deformable member that protrudes over the entire circumference from the attachment part 31a toward the radially inner side of the through hole TH.

  The elastic part 31b is a flat disk having a circular opening at the center before the socket 23 is inserted into the through-hole TH, and the thickness thereof is about 1 to 4 mm so as to be easily bent. Since the radius of the opening OP is smaller than the outer diameter of the cylindrical portion 23a of the socket 23, when the socket 23 is inserted through the through hole TH, the opening OP is expanded by being pushed by the tip of the socket 23. As shown in FIG. 2, the distal end portion of the elastic portion 31 b is bent and deformed, and the side surface of the elastic portion 31 b comes into contact with the cylindrical portion 23 a of the socket 23 in a watertight manner. Thereby, the water on the washing place side is prevented from leaking from between the outer periphery of the socket 23 and the through hole TH of the apron 4 to the back side of the apron 4.

  The soft member 32 has a short cylindrical shape whose outer diameter and inner diameter are substantially the same as those of the attachment portion 31a of the through packing 31, and is attached to the surface side (washing area side) of the attachment portion 31a. Since the soft member 32 is formed of a flexible synthetic resin or the like, it is easily compressed and deformed by pressing from the side.

  The sliding member 33 is a thin disk-like member that is attached to the side surface of the soft member 32 opposite to the attachment portion 31a of the through-packing 31 and has an outer diameter and an inner diameter that are substantially the same as those of the soft member 32. For example, it consists of a synthetic resin.

  A tightening flange 24 to be described later is screwed into the male screw portion 23 c of the socket 23 to press the seal member 30. Here, if the frictional resistance of the surface of the seal member 30 is as large as that of the soft member 32, the surface may be twisted by being pulled by the rotating fastening flange 24. Therefore, the sliding member 33 having a small frictional resistance is adhered to the surface of the soft member 32 so that the tightening flange 24 is not pulled even if it rotates.

  The tightening flange 24 includes a female screw portion 24a that is screwed with the male screw portion 23c of the socket 23, and a flange portion 24b that extends radially outward from one end of the female screw portion 24a. Further, as shown in FIG. 3, a plurality of ridges 24c are provided radially from the back surface of the flange portion 24b.

  After aligning the tip of the female threaded portion 24a of the tightening flange 24 and the tip of the male threaded portion 23c of the socket 23, if the ridge 24c is held and twisted by hand, the tightening flange 24 is easily screwed toward the socket 23. be able to.

  When the terminal end of the female screw portion 24a of the tightening flange 24 reaches the tip of the male screw portion 23c of the socket 23, the screwing of both ends is completed. In this state, the attachment portion 31a on the back side of the apron 4 of the seal member 30 is in watertight contact with the flange portion 23b of the socket 23, and the sliding member 33 of the seal member 30 is watertight with the surface of the flange portion 24b of the tightening flange 24. Abut. Thereby, it is more reliably prevented that the water on the washing station side leaks from between the outer periphery of the socket 23 and the through hole TH of the apron 4 to the back side of the apron 4.

  The rubber bush 13 is inserted at the tip of the socket 23 and closes the gap between the inner periphery of the socket 23 and the outer periphery of the basin-side drain pipe 12 in a watertight manner. The rubber bush 13 includes a cylindrical tubular portion 13a, an outer flange portion 13b that expands radially outward from one end thereof, and an inner flange portion 13c that narrows radially inward from the other end of the cylindrical portion 13a. And have. The outer flange 13b prevents the rubber bush 13 itself from immersing in the socket 23, and the inner flange 13c prevents the basin-side drain pipe 12 from entering the socket 23 more than necessary. To do.

  When the basin-side drain pipe 12 is inserted into the rubber bush 13, the one seat 14 is put on, and the connecting portion between the bathtub-side drain pipe 20 and the basin-side drain pipe 12 is covered. The single seat 14 is provided with a plurality of support shafts 14a having engaging claws 14b at the tip, and the engaging claws 14b are engaged with locking portions 24d provided on the flange portion 24b of the tightening flange 24. Installed.

  The wash drainage device according to the present embodiment is configured as described above, and the attachment procedure will be described below with reference to the flowchart shown in FIG. When the bathroom unit 1 is carried into the installation site, a drain trap 5 is attached to the washing floor 2, and the trap side portion of the bathtub-side drain pipe 20 is attached to the drain trap 5. Then, after the washing floor 2 is installed, the bathtub 3 and the wall panel 7 are attached, and a split floor connecting material (not shown) is attached between the washing floor 2 and the bathtub 3, and both are fixed.

  After completion of each of the above operations, attachment of the toilet drainage device 11 is started. First, as shown in FIG. 5, the basin drainage support member 42 is attached to the divided floor connecting member 41 with screws, the remaining apron 4 side portion of the bathtub side drain pipe 20 is inserted into the trap side portion, and the basin drainage is performed. It is fixed with a mounting screw in accordance with the support material 42 (step S1). Thereby, the upper and lower sides of the bathtub-side drain pipe 20 are fixed, and thus the bathtub-side drain pipe 20 is fixed at a predetermined position.

  Next, the apron 4 to which the seal member 30 is attached is attached to the side surface of the bathtub 3 on the washing floor 2 side (step S2). Here, as shown in FIG. 6, since the outer diameter D of the socket 23 is larger than the diameter d opened by the elastic portion 31b of the seal member 30, the mounting height of the apron 4 and the basin drainage support material Even if there is a slight error in the mounting height of 42, the elastic portion 31b is fitted in the socket 23 in a watertight manner without generating a gap between the elastic portion 31b and the socket 23 as shown in FIG. Can do. Here, when the outer diameter D of the socket 23 is, for example, 36 mm, the diameter d opened by the elastic portion 31b is set to approximately 30 mm.

  When the apron 4 is attached at a predetermined position, the female screw portion 24a of the fastening flange 24 is subsequently screwed into the male screw portion 23c at the tip of the socket 23.

  Here, since the tip of the male screw portion 23c of the socket 23 and the sliding member 33 of the seal member 30 are the same height, that is, flush with each other, the tip of the female screw portion 24a of the fastening flange 24 is connected to the male screw portion 23c of the socket 23. When abutting against the tip, as shown in FIG. 7, the front surface of the flange portion 24b of the tightening flange 24 abuts against the sliding member 33 of the seal member 30, and the pressing of the seal member 30 is started (step S3). Therefore, when the tightening flange 24 is screwed from this state, the seal member 30 is surely pressed, and in particular, the soft member 32 is compressed and deformed, and the front surface of the flange portion 24b of the tightening flange 24 and the sliding member 33 of the seal member 30. Watertightness between the two is increased.

  At this time, since the plurality of ridges 24c are provided radially on the rear surface of the flange portion 24b of the tightening flange 24, the operator can turn the tightening flange 24 by holding the ridges 24c. Since it can, it can work easily, without using a tool.

  In this way, the tightening flange 24 is screwed, and when the end of the female thread 24a of the tightening flange 24 reaches the end of the male thread 23c of the socket 23, in other words, the end of the female thread 24a of the tightening flange 24 and the male thread of the socket 23. When the end of the portion 23c is flush with the tip of the part 23c, the pressing of the seal member 30 is finished (step S4). Since the end position of the pressing of the seal member 30 is set in this way, the water tightness between the front surface of the flange portion 24b of the tightening flange 24 and the sliding member 33 of the seal member 30, and the flange portion 23b of the socket 23 and the through hole are penetrated. Watertightness between the packing 31 and the mounting portion 31a is reliably maintained, and water leakage due to insufficient tightening is prevented.

  Further, when the screwing of the tightening flange is finished, the screw thread of the male screw portion 23c of the socket 23 is terminated at a position spaced apart from the tip of the elastic portion 31b of the through-packing 31 that has been bent and deformed. Thereby, it is avoided that the elastic part 31b interferes with a screw thread, and it is prevented that the water by the side of a washing place goes around to the back side of the apron 4 via the thread trough part.

  This completes the installation on the bathtub-side drain pipe 20 side, and then performs the attachment on the basin-side drain pipe 12 side. First, the rubber bush 13 is inserted into the tip of the socket 23 (step S5), and the basin-side drain pipe 12 is inserted into the rubber bush 13 (step S6). The rubber bush 13 and the basin-side drain pipe 12 are only inserted and not fixed by an adhesive so that they can be removed at the time of inspection or the like. Therefore, water may leak from between the inner surface of the socket 23 and the cylindrical portion 13a of the rubber bush 13 or between the cylindrical portion 13a of the rubber bush 13 and the basin-side drain pipe 12 while being inserted and removed many times. There is. However, even if water leaks from between these, it only leaks to the washing floor 2 side, and does not leak to the back side of the apron 4 without the waterproof pan. Accordingly, leakage of water outside the bathroom unit 1 is prevented.

  Finally, the one seat 14 engages the engaging claw 14b with the locking portion 24d provided on the flange portion 24b of the tightening flange 24, so that the basin-side drain pipe 12 and the bathtub-side drain pipe 20 (Step S7), the attachment of the toilet drainage device 11 is completed.

  Next, a modification of the seal member 30 according to this embodiment will be described with reference to FIG. The elastic part 31b of the seal member 30 according to this embodiment is a flat disk having a circular opening at the center, whereas the seal member 30A according to this modification has an elastic part 31b as shown in FIG. It is fundamentally different from that in the embodiment in that it is formed in a closed flat disk and is provided with a plurality of slits 31c in the center, and other configurations are substantially the same as those in the embodiment.

The length of the slit DOO 31c is formed to the same extent as the diameter d of the opening in the implementation form, smaller than the outer shape D of the socket 23. Therefore, even if there is a slight error between the mounting height of the apron 4 and the mounting height of the basin drainage support member 42, the elastic portion 31 b is connected to the socket 23 without causing a gap between the elastic portion 31 b and the socket 23. It can be fitted in a watertight manner.

  The embodiments described above are for illustrative purposes and do not limit the scope of the invention. Accordingly, those skilled in the art can employ embodiments in which each or all of these elements are replaced by equivalents thereof, but these embodiments are also included in the scope of the present invention.

The elevation view which shows the outline | summary of embodiment of a bathroom unit provided with the drainage device for bathrooms which concerns on this invention. Sectional drawing of the drainage device for bathrooms concerning this embodiment. The perspective view which shows the external appearance of a flange member. The flowchart which shows the assembly procedure of the drainage device for bathrooms which concerns on this embodiment. The figure which shows the state by which the bathtub side drainage pipe of the bathroom drainage apparatus which concerns on this embodiment form was fixed. The figure which shows the state just before an apron is erected. The figure which shows the state just before an apron is standingly arranged in a predetermined position, and starts the screwing of a flange member. The figure which shows the state which the screwing of the flange member was completed. The front view which shows the modification of a penetration packing. Sectional drawing which shows an example of the conventional bathroom drainage apparatus employ | adopted as the bathroom unit of the half structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathroom unit 2 Washing floor, 2a Support leg 3 Bathtub, 3a Support leg, 3b Rim, 3c Reinforcing rib 4 Apron 5 Drain trap 6 Drain elbow 7 Wall panel 8 Wash basin 9 Faucet 10 Shower 11 Wash basin drain 12 Wash basin Side drain pipe 13 Rubber bush, 13a Cylindrical part, 13b Outer collar part, 13c Inner collar part 14 One seat, 14a Support shaft, 14b Engaging claw 20 Bath side drain pipe 21 Main pipe 22 Elbow 23 Socket, 23a Cylindrical part , 23b collar part, 23c male thread part 24 tightening flange, 24a female thread part, 24b flange part, 24c ridge, 24d locking part 30, 30A sealing member
31 through packing, 31a mounting part, 31b, elastic part 32 soft member 33 sliding member 41 split floor connecting material 42 wash basin drainage support material 43, 44 packing F building floor OP opening TH through hole

Claims (7)

An apron that obscures the side of the bathtub from the washing floor,
A washbasin fixed to the wall surface on the washing floor,
A basin drain pipe having one end attached to the drain of the basin, and draining hot water in the basin to a drain trap attached to the floor of the washroom,
The apron is a bathroom unit in which a through-hole through which the basin drain pipe passes is formed,
The entire circumference of the through-hole is attached to the apron around the through-hole from the front and back and attached in a watertight manner, and the entire circumference from the attachment part toward the radially inner side of the through-hole. A sealing member having an elastically deformable elastic portion protruding over the
The bathroom unit, wherein an outer diameter of the basin drain pipe penetrating the through hole is formed larger than an inner diameter of an opening surrounded by an elastic portion of the seal member. The basin drain pipe has one end connected to the drain of the basin, and one end connected to the basin side drain pipe for draining hot water in the basin, and the other end of the basin side drain pipe. A bathtub-side drain pipe,
A male screw portion which is threaded to either fitted to the side tip of the basin side drain pipe and the tub side drain pipe,
A flange member that is screwed with the male screw portion and cooperates with the apron around the through hole to sandwich the attachment portion of the seal member;
With
The surface of the mounting portion that comes into contact with the flange member and the front end of the male screw portion are arranged at the same level , and the seal member is formed of a soft member that is compressed by pressing of the flange member. The bathroom unit according to claim 1.   The connecting part between the basin-side drain pipe and the bathtub-side drain pipe is fitted at one end to the other end via an elastically deformable seal member that watertightly closes the gap formed therebetween. The bathroom unit according to claim 2, wherein the bathroom unit is combined. The basin-side drainage pipe is disposed so that the tip of the basin-side drainage pipe is fitted in the bathtub-side drainage pipe, and the tip of the fitting part of the bathtub-side drainage pipe is positioned closer to the washing place than the apron. The bathroom unit according to claim 2 or 3.   The bathroom unit according to any one of claims 1 to 4, wherein the elastic portion is formed to be approximately 1 to 4 mm thin. The bathroom unit according to any one of claims 2 to 4, wherein the male screw portion is screwed at a position where it does not interfere with the elastic portion. An apron that obscures the side of the bathtub from the washing floor,
A washbasin fixed to the wall surface on the washing floor,
A basin drain pipe having one end attached to the drain of the basin, and draining hot water in the basin to a drain trap attached to the floor of the washroom,
The apron is a bathroom unit in which a through-hole through which the basin drain pipe passes is formed,
The through-hole is a seal having an attachment portion that is attached watertight by sandwiching the apron around the through-hole from the front and back, and an elastically deformable elastic portion that extends from the attachment portion and covers the through-hole The part is attached,
The bathroom unit, wherein a slit having a length shorter than an outer diameter of the basin drain pipe penetrating the through hole is formed in the elastic part of the seal member.

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