JP2008154946A - Bathroom unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathroom unit of simple constitution which can be accurately positioned. <P>SOLUTION: The bathroom unit includes: a washing place floor; a bathtub which has a first height adjusting mechanism provided at the bottom part of the bathtub close to the washing place floor, a second height adjusting mechanism provided at the bottom part of the bathtub away from the washing place floor, and is set as a separate body at a distance from the washing place floor; and a connecting member which has an engaging part to engage with a bathtub fixing part fixed to the bathtub and a rising rim part provided at the edge part of the washing place floor close to the bathtub to connect the bathtub and the washing place floor. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a bathroom unit, and more particularly, to a bathroom unit in which a bathtub and a washing floor are configured separately.

  A bathroom unit in which a bathtub and a washroom floor are separately formed is superior in transportability, workability, maintainability, and the like as compared with a unit in which a bathtub and a washroom floor are integrally molded. In such a separate bathroom unit, the bathtub and washroom floor were each installed on the installation surface and the bathtub was positioned, but there was nothing to mark when installing the bathtub. In many cases, it takes a long construction time to perform accurate positioning because there are many parts that depend on the skill and experience of the operator.

There has also been proposed a configuration in which a positioning frame is installed on an installation surface and a bathtub is placed on the frame (see, for example, Patent Documents 1 and 2). However, since the frame must support the bathtub and the hot water stored in the bath, and also the load of the bather, a frame having a high strength is required, resulting in a problem that the manufacturing cost increases.
JP 2002-219067 A JP 2005-65980 A

  The present invention provides a bathroom unit that can easily perform accurate positioning while adopting a simple configuration.

  According to an aspect of the present invention, the washing floor, the first height adjustment mechanism provided at the bottom of the washing floor, and the second height adjustment provided at the bottom of the washing floor. A bathtub that is installed separately from and separate from the washing floor, a bathtub fixing portion that is fixed to the bathtub, and a rising provided at an edge on the bathtub side of the washing floor There is provided a bathroom unit including an engaging portion that engages with a rim portion, and a connecting member that connects the bathtub and the washing floor.

  ADVANTAGE OF THE INVENTION According to this invention, the bathroom unit which can perform exact positioning easily, employ | adopting a simple structure is provided.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic side view of a bathroom unit according to an embodiment of the present invention.
FIG. 2 is a schematic plan view of the bathroom unit as viewed from the back side.

  The bathroom unit according to the present embodiment mainly includes a washing floor 1, a bathtub 2, and a connecting member 30 that connects the washing floor 1 and the bathtub 2. The washing floor 1 and the bathtub 2 are configured as separate bodies, respectively carried into the installation site of the bathroom unit, and positioned and connected by the connecting member 30 at the site. The washing floor 1 and the bathtub 2 are placed separately on the building floor (slab) of the bathroom unit installation location, and both are connected via a connecting member 30 to prevent mutual separation and displacement. ing.

  The washroom floor 1 has a substantially rectangular planar shape, and is formed in a shallow vessel shape (bread shape) provided with a rising rim portion functioning as a draining wall at the four edges, and hot water is provided outside the bathroom. Waterproof to prevent leakage. Support legs 12 are provided in the vicinity of the four corners and at the center of the back surface of the washing floor 1, and a bolt structure height adjusting mechanism 13 that moves up and down by rotating is provided at the tip of the support legs 12. Yes.

  The bathtub 2 has a substantially quadrangular or oval planar shape, and one long side bathtub wall 4 of the pair of long side bathtub walls is installed next to the washing floor 1 toward the washing floor 1 side. Is done.

  Support legs 21 and 23 are provided in the vicinity of the four corners of the bottom of the bathtub 2, and bolts whose heights can be adjusted by rotating the two support legs 21 provided on the washing floor 1 side. A first height adjusting mechanism 22 having a structure is provided. A second height adjusting mechanism 24 having a bolt structure that moves up and down by rotating is provided at the tip of each of the two support legs 23 provided at the bottom on the back side with respect to the washing floor 1.

  A drainage pit is formed in the vicinity of the boundary with the bathtub 2 on the surface side of the washing floor 1, and a drainage trap 51 shown in FIG. A drainage port 52 is provided on the bottom surface of the bathtub 2, and the drainage port 52 is connected to a connection port 54 of a drainage trap 51 via a bathtub drainage pipe 55 disposed on the back side of the bathtub 2 and the washing floor 1. Yes. In the drain trap 51, a drain pipe 53 connected to the outside of the bathroom is connected to a portion facing the connection port 54 with the bathtub drain pipe 55.

Next, the connecting member 30 will be described.
FIG. 6 is a perspective view of the connecting member 30.

  The connecting member 30 is made of, for example, a resin material, and each portion described below is integrally provided, and has a substantially “J” shape as a whole. The connecting member 30 includes an engaging portion 31 that engages with an upper end of a rising rim portion 11 provided on an edge of the washing floor 1 on the bathtub 2 side, and a length that extends downward from the engaging portion 31. A length portion 32, a bathtub fixing portion 35 fixed to the bottom of the bathtub 2 on the washing floor 1 side, a short portion 34 that extends downwardly from the bathtub fixing portion 35 and is shorter than the long portion 32, It has a bathtub drain pipe holding part 33 that extends in the lateral direction so as to connect the lower end of the short part 34 and the lower end of the long part 32.

  The engaging portion 31 is provided so as to protrude from the upper end of the long portion 32 toward the outside of the long portion 32 (the opposite side on the inside facing the short portion 34). The engaging portion 31 is provided at a substantially right angle with respect to the long portion 32. Reinforcing ribs 37 and 38 are provided on the inner side of the long portion 32 and the upper surface of the engaging portion 31.

  The bathtub fixing portion 35 is provided so as to protrude from the upper end of the short portion 34 toward the outside of the short portion 34 (the opposite side to the inside facing the long portion 32). The bathtub fixing part 35 is provided at a substantially right angle with respect to the short part 34. The bathtub fixing part 35 is formed with a through hole 36 through which a screw screwed into the bottom of the bathtub 2 is passed.

  The engaging part 31 is provided at a position higher than the bathtub fixing part 35 with the bathtub drain pipe holding part 33 as a reference. The engaging portion 31 is formed with a through hole 39 through which a screw to be screwed into the mounting member 60 described later is passed. In addition, a positioning rib 40 that protrudes downward and extends substantially parallel to the long portion 32 is provided on the lower surface of the engaging portion 31 near the long portion 32.

  Furthermore, the bathroom unit according to the present embodiment includes an attachment member 60 that fixes the connecting member 30 to the rising rim portion 11 of the washing floor 1.

FIG. 7 is a perspective view of the attachment member 60.
FIG. 8 is a perspective view of the mounting member 60 viewed from the side opposite to FIG.

  The attachment member 60 is made of, for example, a metal material, and each part described below is provided integrally. The attachment member 60 is provided at a pair of upper surface portions 61 that are provided apart from each other, a pair of side surface portions 62 that are provided substantially at right angles to each upper surface portion 61, and a lower end of each of the side surface portions 62. , A hook portion 63 protruding in the same direction as the upper surface portion 61, a connecting member mounting portion 64 provided in a concave shape between the pair of upper surface portions 61, and an edge of the connecting member mounting portion 64 on the side surface portion 62 side And a bath apron mounting portion 65 that hangs downward from the portion and is bent in a direction away from the side surface portion 62. A screw hole 66 is formed in the connecting member mounting portion 64. A screw hole 67 is formed in a portion of the bus apron mounting portion 65 that faces the connecting member mounting portion 64.

  The bathroom unit according to the present embodiment is assembled as described below.

  First, the washing floor 1 is installed on the building floor 100 on which the bathroom unit is installed via the support legs 12, and the height adjustment mechanism (bolts) 13 of the support legs 12 is turned to adjust the height. The height adjustment is performed so that the floor surface of the washing floor 1 becomes horizontal at a desired height.

  Next, the bathtub 2 is installed next to the washing floor 1. At this time, the bathtub fixing part 35 of the connecting member 30 is fixed in advance to the bottom of the bathtub 2 on the washing floor 1 side, and the engaging part 31 of the connecting member 30 is connected to the edge of the washing floor 1 on the bathtub 2 side. The bathtub 2 is installed so as to be hooked on the upper end of the rising rim portion 11 provided at the top.

  In this embodiment, as shown in FIG. 2, for example, two connecting members 30 are provided in the vicinity of both ends in the long side direction of the bathtub 2. The bathtub fixing portion 35 of each connecting member 30 is fixed to the bottom of the bathtub 2 on the inner side with respect to the longer side direction than the first height adjusting mechanism 22.

FIG. 3 is a perspective view of a portion where the connecting member 30 is attached in the bathroom unit according to the present embodiment.
FIG. 4 is a cross-sectional view of a portion to which the connecting member 30 is attached.
FIG. 5 is an enlarged plan view of an engaging portion between the connecting member 30 and the rising rim portion 11 of the washing floor 1.

  As shown in FIG. 4, a mounting portion 72 that bulges downward is provided at the bottom of the bathtub 2 near the support leg 21 to which the bathtub fixing portion 35 of the connecting member 30 is fixed. For example, two nuts 81 are provided.

  The upper surface of the bathtub fixing portion 35 of the connecting member 30 is overlaid on the lower surface of the mounting portion 72 in a state where the position of the bathtub fixing portion 35 coincides with the nut 81 in the through hole 36 (FIG. 6). A screw 73 is screwed into the nut 81 through the through hole 36. Thereby, the bathtub fixing part 35 of the connection member 30 is fixed to the bottom part of the bathtub 2.

  In a state where the bathtub fixing portion 35 of the connecting member 30 is fixed to the bottom of the bathtub 2, the bathtub drain pipe holding portion 33 of the connecting member 30 extends to the washing floor 1 side, and the long portion 32 is the bathtub drain pipe holding portion. It extends so as to rise upward from the end of the washing floor 1 at 33. The engaging portion 31 provided at the upper end of the long portion 32 is attached to the upper end of the rising rim portion 11 of the washing floor 1 via the attachment member 60 described above with reference to FIGS.

  At the upper end of the rising rim portion 11 on the bathtub 2 side in the washing floor 1, a positioning portion 8 (FIG. 5) that is notched in a concave shape is formed. The attachment member 60 is attached at two locations according to the attachment positions of the two connecting members 30, and the positioning portion 8 is located in the extending direction of the upper end of the rising rim portion 11 as shown in FIG. Two are provided apart.

  A pair of upper surface portions 61 of the attachment member 60 are fitted into the positioning portion 8 from above. Each of the pair of upper surface portions 61 has a portion near the boundary with the side surface portion 62 positioned in the positioning portion 8 cut out in a concave shape. Thereby, the movement of the attachment member 60 in the lateral direction (the extending direction of the upper end of the rising rim portion 11) is restricted. The side surface portion 62 of the mounting member 60 is in contact with and opposed to the outer side surface (facing the bathtub 2 side) near the upper end of the rising rim portion 11. The connecting member mounting portion 64 and the bus apron mounting portion 65 of the mounting member 60 are spaced from the inner side surface of the rising rim portion 11 and are positioned inside the rising rim portion 11.

  The engaging portion 31 of the connecting member 30 is connected by aligning the through hole 39 formed in the engaging portion 31 of the connecting member 30 with the screw hole 66 formed in the connecting member attaching portion 64 of the attaching member 60. It is placed on the member mounting portion 64. In the engaging portion 31 of the connecting member 30, the back surface between the positioning rib 40 and the long portion 32 provided so as to protrude downward contacts the upper end of the rising rim portion 11. Due to the elongated portion 32 facing the outer side surface of the rising rim portion 11 and the positioning rib 40 facing the inner side surface of the rising rim portion 11, the lateral movement of the engaging portion 31 in FIG. 4 is restricted. Further, the movement of the engaging portion 31 in the direction penetrating the paper surface in FIG. 4 is restricted by the side wall portion of the connecting member mounting portion 64 provided in a concave shape.

  As shown in FIG. 4 in a state where the engaging portion 31 of the connecting member 30 is placed on the connecting member attaching portion 64 of the attaching member 60, the screw 74 is passed through the through hole 39 from above the engaging portion 31 to the screw hole 66. Screwed. Thereby, the engaging part 31 of the connecting member 30 and the connecting member attaching part 64 of the attaching member 60 are fastened.

  A portion near the upper end of the rising rim portion 11 of the washing floor 1 protrudes toward the bathtub 2 as shown in FIGS. 3 and 4, and a step portion 11a is provided below the protruding portion. As described above, the engaging portion 31 of the connecting member 30 and the connecting member attaching portion 64 of the attaching member 60 are overlapped in the vertical direction and fastened to be provided at the lower end of the side surface portion 62 of the attaching member 60. The hook portion 63 is hooked on the step portion 11 a of the rising rim portion 11.

  Accordingly, as shown in FIG. 4, the back surface of the engaging portion 31 of the connecting member 30 that contacts the upper end of the rising rim portion 11, and the hook portion 63 of the mounting member 60 that contacts the stepped portion 11 a of the rising rim portion 11. Thus, the rising rim portion 11 is sandwiched in the vertical direction. As a result, the connecting member 30 and the attachment member 60 fastened to each other via the screw 74 are fixed to the rising rim portion 11.

  When the bathtub 2 is installed, the first height adjustment mechanism 22 of the support leg 21 provided on the washing floor 1 side in the bathtub 2 is set to a height that floats on the building floor 100 as shown in FIG. The engaging portion 31 of the connecting member 30 is engaged with the upper end of the rising rim portion 11 of the washing floor 1 as described above, and the support legs 23 provided on the back side with respect to the washing floor 1 in the bathtub 2 are provided. The second height adjusting mechanism 24 is landed on the building floor 100. In this state, the height of the second height adjusting mechanism 24 is adjusted so that the bathtub 2 is horizontal.

  The portion of the bathtub 2 on the side of the washing floor 1 is such that the engaging portion 31 of the connecting member 30 fixed to the bottom of the bathtub 2 is hooked on the upper end of the rising rim portion 11 of the washing floor 1 already installed at a desired height. By engaging, the height is set to a desired level, and the first adjustment mechanism 22 on the washing floor 1 side may simply land on the base surface 100.

  That is, the second height adjustment mechanism 24 on the back side with respect to the washing floor 1 functions as a support leg of the bathtub 2 and has a function of adjusting a portion of the bathtub 2 far from the washing floor 1 to a desired height. However, the first height adjusting mechanism 22 on the washing floor 1 functions only as a support leg for the bathtub 2.

  When the engaging portion 31 of the connecting member 30 is engaged with the upper end of the rising rim portion 11, the first height adjustment mechanism 22 contacts the building floor 100 before the engaging portion 31 contacts the upper end of the rising rim portion 11. The first height adjustment mechanism 22 needs to be lifted from the building floor 100 so as not to be replaced, and the bathtub 2 cannot be supported in the floated state, so that the height of the second height adjustment mechanism 24 is increased. After the adjustment is completed, it is necessary to land the first height adjusting mechanism 22 on the building floor 100. Therefore, the first height adjusting mechanism 22 must also be configured to be movable up and down so that the height relative to the building floor 100 can be changed. In addition, it is desirable that the first height adjusting mechanism 22 is not raised beyond a predetermined height from the viewpoint of preventing interference with the connecting member 30 fixed to the bottom of the bathtub 2.

  According to this embodiment, since the bathtub 2 is connected via the connecting member 30 to the rising rim portion 11 in the washing floor 1 installed at a desired height and position, the bathtub 2 is positioned and installed accurately and easily. Can be done.

  Conventionally, the operation of leveling the bathtub with respect to the floor of the building has to be performed while gradually adjusting, for example, four support leg bolts provided near the four corners of the bottom of the bathtub. It was. In the present embodiment, as described above, when the bathtub 2 is leveled with respect to the building floor 100, the height adjustment of the two second height adjustment mechanisms 24 on the side far from the washing floor 1 is performed. This will save you time and effort.

  The height of the washing floor 1 side in the bathtub 2 is the height of the engaging portion 31 on the other end side of the connecting member 30 in which the bathtub fixing portion 35 on one end side is fixed to the bottom of the bathtub 2 in advance. A desired height can be obtained by engaging the rising rim portion 11 of the floor 1 so as to be hooked on the upper end.

  Moreover, the two connecting members 30 are provided in the vicinity of both ends in the bathtub long side direction, and the engaging portions 31 of the two connecting members 30 are engaged so as to be hooked on the upper end of the rising rim portion 11 having the same height. Therefore, the leveling seen from the long side direction of the bathtub is also made. If the two connecting members 30 are provided in the vicinity of both ends in the bathtub long side direction, the vicinity of both ends in the bathtub long side direction have the same height, and the part between these both ends naturally has the same height as in the vicinity of both ends. Therefore, it is possible to level the bathtub in the long side direction with high accuracy.

  According to the present embodiment, the worker sets the height of the bathtub 2 on the washing floor 1 side only by engaging the engaging portion 31 of the connecting member 30 to the upper end of the rising rim 11 of the washing floor 1. And the leveling seen in the bathtub long side direction is made natural. In engaging the engaging portion 31 of the connecting member 30 with the upper end of the rising rim portion 11 of the washing floor 1, as described above, the positioning is performed with respect to the positioning portion 8 (FIG. 5) formed at the upper end of the rising rim portion 11. The engaging member 31 of the connecting member 30 may be fitted into the connecting member attaching portion 64 that is recessed in the concave shape of the attaching member 60 and fastened with a screw 74. Therefore, according to this embodiment, regardless of the skill of the operator, high construction quality without variation can be realized, and construction time can be shortened.

  Moreover, in this embodiment, it is not necessary to use the positioning frame which needs to produce with the intensity | strength which can endure the load of the bathtub 2 for positioning of the bathtub 2, and can provide an inexpensive bathroom unit.

  As shown in FIG. 4, a screw 75 penetrating the lower end of the bus apron 71 is screwed into the screw hole 67 (FIG. 8) formed in the bus apron mounting portion 65 of the mounting member 60 from below. Thereby, the lower end portion of the bus apron 71 is fastened to the bus apron mounting portion 65 of the mounting member 60.

  The connecting member 30 and the bath apron 71 are fixed to the rising rim portion 11 of the washing floor 1 by being fastened to the mounting member 60 by screws 74 and 75, respectively. In this structure, since there is no hole in the rising rim portion 11 of the washing floor 1, the waterproof property of the rising rim portion 11 that functions as a draining wall is not impaired.

  Further, in the present embodiment, the connecting member 30 is connected to the bottom of the bathtub 2 and the rising rim portion 11 of the washing floor 1, and the lowest position of the connecting member 30 (in this embodiment, for example, the bottom surface of the bathtub drain pipe holding portion 33). ) Is located at a position floating above the building floor surface 100, so that the engaging portion 31 is reliably engaged with the upper end of the rim portion 11 without causing the connecting member 30 to interfere with the building floor surface 100. be able to. In general, the drain trap 51 provided on the back side of the washing floor 1 does not contact the building floor 100 in a state where the washing floor 1 is installed on the building floor 100. Therefore, the lowest position of the connecting member 30 is the drainage. If the height is equal to or higher than the bottom surface of the trap 51, contact (interference) between the connecting member 30 and the building floor surface 100 can be prevented. That is, it is only necessary that the length of the long portion 32 is smaller than the length in the vertical direction from the bottom of the drain trap 51 to the upper end of the rising rim portion 11. Further, in consideration of the drainage gradient in the bathtub drain pipe 55, the length of the long portion 32 may be longer than the length in the vertical direction from the drain port 52 of the bathtub 2 to the upper end of the rising rim portion 11.

  A part of the bathtub drain pipe 55 is placed and held on the bathtub drain pipe holding portion 33 of one of the two connecting members 30. By positioning the bathtub drain pipe holding portion 33 of the connecting member 30 at a relatively low position near the building floor 100, the piping work space of the bathtub drain pipe 55 can be widened and workability can be improved.

  A part of the bathtub drain pipe 55 is configured as a bellows-like flexible tube, and the bathtub drain pipe 55 is curved in a U shape between the bathtub drain port 52 and the drain trap 51 as shown in FIG. It is connected.

  Since the bathtub drain 52 is located at a position higher than the connection port 54 between the bathtub drain pipe 55 and the drain trap 51, hot water stored in the bathtub 2 is passed through the bathtub drain 52 and the bathtub drain pipe 55. Can be drained into the drain trap 51.

  Further, the upper surface of the bathtub drain pipe holding portion 33 in the connecting member 30 is a position lower than the bathtub drain outlet 52 and higher than the height of the bottom face of the connection port 54 between the bathtub drain pipe 55 and the drain trap 51. positioned. Therefore, the bathtub drain pipe 55 held on the bathtub drain pipe holding portion 33 is held at a position equal to or higher than the connection port 54 (a position lower than the bathtub drain pipe 52). Even when a flexible tube is used for improvement, it does not hang downward, and a reverse drainage gradient that is a downward gradient when viewed from the connection port 54 is not formed in the bathtub drainage pipe 55. Thereby, it is possible to prevent dust and residual water from accumulating in the bathtub drain pipe 55.

  When the bathtub fixing portion 35 of the connecting member 30 is screwed and fixed to the bathtub 2, from the viewpoint of ensuring the waterproof property and the reliable fastening performance of the bathtub 2, as shown in FIG. A structure in which the attached mounting portion 72 is provided, a nut 81 is embedded in the bulging portion 72, and a screw 73 is screwed to the nut 81 is desirable.

  The bathtub fixing portion 35 of the connecting member 30 may be fixed to the bathtub wall 4 on the washing floor 1 side in the bathtub 2. However, in general, it is difficult to provide a bulging portion on the side surface of the bathtub 2 by integral molding because of die cutting, and therefore it is desirable to provide the bulging portion 72 at the bottom of the bathtub 2 for production efficiency. The form which fixes the bathtub fixing | fixed part 35 of the connection member 30 to the bottom part of the bathtub 2 is desirable.

It is a model side view of the bathroom unit which concerns on embodiment of this invention. It is the model top view which looked at the same bathroom unit from the back side. It is a perspective view of the part to which the connection member was attached in the bathroom unit. It is sectional drawing of the part to which the connection member was attached in the bathroom unit. It is an enlarged plan view of the engaging part of the connecting member and the rising rim part of the washroom floor in the bathroom unit. It is a perspective view of the connection member in the bathroom unit. It is a perspective view of the attachment member in the bathroom unit. It is a perspective view of the attachment member seen from the opposite side to FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Washing place floor, 2 ... Bathtub, 8 ... Positioning part, 11 ... Standing rim part, 22 ... 1st height adjustment mechanism, 24 ... 2nd height adjustment mechanism, 30 ... Connection member, 31 ... Engagement part, 33 ... Bathtub drain pipe holding part, 35 ... Bathtub fixing part, 51 ... Drain trap, 55 ... Bathtub drain pipe, 60 ... Mounting member, 71 ... Bath apron

Claims (7)

The washroom floor,
A first height adjustment mechanism provided at the bottom of the washing floor and a second height adjustment mechanism provided at the bottom of the washing floor, separate from the washing floor And a separately installed bathtub,
It has a bathtub fixing part fixed to the bathtub and an engaging part that engages with a rising rim part provided at an edge of the bathtub side in the washing floor, and connects the bathtub and the washing floor. A connecting member;
A bathroom unit characterized by comprising:   The bathroom unit according to claim 1, wherein the bathtub fixing portion of the connecting member is fixed to a bottom portion of the bathtub on the side of the wash floor.   The bathroom unit according to claim 1, further comprising an attachment member that fixes the engaging portion of the connecting member to the rising rim portion of the washroom floor.   The positioning part which positions the said engaging part of the said connection member with respect to the said rising rim part of the said wash-cleaning floor was provided in the said rising rim part, The Claim 1 characterized by the above-mentioned. The bathroom unit described.   In a state where the connecting member is connected to the bathtub and the washing floor, the lowest position of the connecting member is above the building floor on which the first height adjusting mechanism and the second height adjusting mechanism are placed. It is located in, The bathroom unit as described in any one of Claims 1-4 characterized by the above-mentioned.   The connecting member has a bathtub drain pipe that connects the drain outlet of the bathtub and a drain trap provided on the back side of the washroom floor, and has a height equal to or higher than a height of a connection port between the bathtub drain pipe and the drain trap. It has a bathtub drain pipe holding part hold | maintained at the height below a drain outlet, The bathroom unit as described in any one of Claims 1-5 characterized by the above-mentioned. The bathtub is arranged with the bathtub wall on the long side facing the washing floor,
The bathroom unit according to claim 1, wherein at least two of the connecting members are provided in the vicinity of both ends in the long side direction of the bathtub.

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