JP6991455B2 - Hand wash unit - Google Patents

Description

The present invention relates to a hand wash basin unit comprising a counter with a hand wash basin and a metal frame for placing the counter on top, and more particularly to a hand wash basin unit installed facing a wall surface.

In the past, a counter and a metal frame suitable for the size of this counter were manufactured at the factory according to the installation site, and then carried to the installation site to install the hand wash basin unit.

The metal frame has a counter mounting portion on which the counter is mounted, and support legs extending downward at the four corners of the counter mounting portion to support the counter mounting portion. Further, in order to sufficiently maintain the strength of the metal frame, the supporting feet are connected and fixed on the floor surface by reinforcing members in the vertical direction and the horizontal direction. (For example, Patent Document 1)

Japanese Patent Application Laid-Open No. 2-272119

However, when a metal frame that matches the size of the counter is manufactured at the factory and brought to the installation site, the size of the counter mounting part for mounting the counter on the metal frame is about the size of the counter. Therefore, the size of the metal frame as a whole becomes large, and there is a problem in terms of the carryability of the metal frame.

Therefore, the counter mounting portion of this metal frame was divided into two in the left and right width directions, and the divided metal frames slid with each other and were configured to expand and contract, thereby shrinking the metal frame. Sometimes it is a metal frame that is smaller and more portable than before, and by corresponding to the size of the counter when stretched, the area where the sliding parts of the counter mounting part overlap, that is, the polymerization area We considered the realization of a metal frame with high portability by making it changeable and without impairing the function as a metal frame.

However, in the metal frame structure divided into two as described above, a problem has arisen regarding the change of the polymerization region of the counter mounting portion of the metal frame.

This is because this metal frame is installed facing the wall surface, and since there is a pipe connecting pipe for arranging the pipe in the bathroom on the wall surface, this pipe is used when sliding the divided metal frame. The point is that the connecting pipe and the metal frame on the wall surface side collide with each other and cannot be expanded or contracted, and the overlapping area of the counter mounting portion cannot be changed.

The present invention solves the above-mentioned peculiar problem concerning the change of the polymerization region of the counter mounting portion of the metal frame. That is, it facilitates the change of the polymerization region of the counter mounting portion.

A means for solving the above-mentioned problems is a hand-washing device unit provided with a counter provided with a hand-washing device and a metal frame for mounting the counter on the upper portion, which is installed facing the wall surface. The metal frame has a counter mounting portion for mounting a counter on the upper portion, and a support leg extending downward from the counter mounting portion and contacting the floor surface to support the counter mounting portion. The counter mounting portion is divided into a first counter mounting portion and a second counter mounting portion that slides with each other and expands and contracts with the first counter mounting portion. The first counter mounting portion has the support legs in the rear and front, and has left and right reinforcing members extending from the lower end side of the front support legs toward the second counter mounting portion, and the rear support legs. The second counter mounting portion has the support leg in the front and from the lower end of the support leg. It is a hand washing machine unit characterized in that it extends in the left-right direction toward the left-right reinforcing member and is slidably connected to the left-right reinforcing member .

According to the present invention, the counter mounting portion is divided into a first counter mounting portion and a second counter mounting portion that slides on and expands and contracts with the counter mounting portion. Therefore, by moving the second counter mounting portion with respect to the first counter mounting portion, it is possible to change the polymerization area of the counter mounting portion according to the size of the counter equipped with the hand wash basin. can.

Further, the first counter mounting portion has support legs in the rear and front, and also has front and rear reinforcing members in which the lower ends of the support legs are connected in the front-rear direction on the side of the second counter mounting portion with respect to the support legs. ing. Therefore, even when a counter equipped with a hand wash basin is placed on the counter mounting portion, sufficient strength in the front-rear direction can be ensured.

Further, the second counter mounting portion has a support leg in the front, and also has a left-right reinforcing member extending in the left-right direction from the lower end of the support leg toward the front-rear reinforcing member and connected to the front-rear reinforcing member. Therefore, even if the overlapping area of the counter mounting portion is changed by moving the second counter mounting portion with respect to the first counter mounting portion, the pipe connection pipe provided on the wall surface is used. , The support legs of the second counter mounting part do not collide.

Further, this counter mounting portion is a left and right reinforcing member that is connected to the front and rear reinforcing members of the first counter mounting portion even when the polymerization region of the counter mounting portion is changed, that is, the second counter mounting portion. By having the left and right reinforcing members in the moving direction of the portion, it is possible to easily change the overlapping region of the counter mounting portion.

In the second invention, preferably, the first counter mounting portion is divided into a central counter mounting portion and a third counter mounting portion that slides with each other and expands and contracts with the central counter mounting portion. The third counter mounting portion has the support leg in the front, and the central counter mounting portion has the support leg on the third counter mounting portion side in the rear on the third counter mounting portion side. The central counter mounting portion has a second left and right reinforcing member extending from the lower end side of the front support leg toward the third counter mounting portion side, and the rear of the central counter mounting portion. The third counter mounting portion has a second front-rear reinforcing member extending forward from the lower end of the third counter mounting portion side support leg and connected to the second left and right reinforcing member. It extends in the left-right direction from the lower end of the support leg in front of the third counter mounting portion toward the second left-right reinforcing member, and is slidably connected to the second left-right reinforcing member.

The first counter mounting portion is divided into a third counter mounting portion and a central counter mounting portion so as to be slidable and expandable. Since the third counter mounting portion can be expanded and contracted, the counter mounting portion can be moved in both the left and right directions to change the polymerization region of the counter mounting portion. Further, since the front-rear reinforcing member is divided into a front-rear reinforcing member main body and a second left-right reinforcing member, the strength of the third counter mounting portion is sufficiently secured. Further, since the third counter mounting portion has the support legs in the front, the third counter mounting portion can move without hitting the pipe on the wall surface. Therefore, it is possible to easily change the polymerization region of the counter mounting portion.

In the third invention, preferably, in addition to the second invention, the central counter mounting portion is rearward at least one side of the second counter mounting portion side or the third counter mounting portion side. The pair of support legs are provided in the left-right direction, and the upper ends and the lower ends of the pair of support legs are connected to each other by a left-right direction stabilizing portion extending in the left-right direction so that the counter does not swing in the left-right direction.

Below the support leg of the central counter mounting portion, a left-right stabilizing portion is provided so that the counter does not swing in the left-right direction, so that a force is applied to the support leg in a direction against gravity from the counter, that is, Even when the counter is supported by the counter mounting portion located at the rear to reduce the frictional force that the support legs are rubbed against the floor surface, the third counter mounting portion to the second counter mounting portion is stable. The counter mounting part can be moved. Therefore, it is possible to easily change the polymerization region of the counter mounting portion.

In the fourth invention, preferably, in addition to the third invention, the support leg of the central counter mounting portion is provided with a pipe support portion for supporting the pipe.

When you want to expand and contract the metal frame with respect to the counter after arranging the piping provided on the wall surface in the hand wash basin, the position of the piping is provided by providing the support leg of the central counter mounting part with the piping support function. Since the third counter mounting portion and the second counter mounting portion can be moved without changing the above, there is no need to re-arrange the piping. Therefore, it is possible to easily change the polymerization region of the counter mounting portion.

In the fifth invention, preferably, in addition to the second invention, a fixing member fixed to the wall surface is provided at the rear end portion of the second counter mounting portion and the third counter mounting portion facing the wall surface. ing.

The height of the counter mounting section for mounting the counter equipped with a hand-washing device above may differ between the central counter mounting section, the second counter mounting section, and the third counter mounting section. A fixing member fixed to the wall surface was provided at the rear end of the second counter mounting portion and the third counter mounting portion facing the wall surface so as not to be present.
As a result, even when the second counter mounting portion and the third counter mounting portion having the support legs in the front are affected by the distortion of the floor or the like and become different in height from the central counter mounting portion, the first The height is adjusted by the fixing members provided at the rear ends of the second counter mounting portion and the third counter mounting portion located away from the support legs of the second counter mounting portion and the third counter mounting portion. Since it can be fixed to the wall surface, the height of the upper part of the counter mounting portion can be adjusted equally. Further, this prevents a biased load from being applied to the polymerization region when the counter is placed, so that it is possible to prevent bending force from being generated at the boundary of the polymerization region.

According to the aspect of the present invention, it is possible to provide a hand wash basin unit in which the polymerization region of the counter mounting portion for mounting the counter equipped with the hand wash basin can be easily changed.

It is a perspective view when the hand wash basin unit in embodiment of this invention is arranged facing a wall surface. It is a perspective view of the metal frame (when contracted) in embodiment of this invention. It is an exploded perspective view of the metal frame in embodiment of this invention. It is a perspective view of the metal frame (when extended) in embodiment of this invention. It is an enlarged view of the pipe connection member in embodiment of this invention. It is a rear perspective view of the metal frame in embodiment of this invention.

Regarding the embodiment of the present invention, first, the structure of the entire hand wash basin unit 1 will be described, and then the structure of the metal frame 7 will be described based on FIGS. 1, 2, and 6.

The hand wash basin unit 1 in the embodiment of the present invention is fixed on a floor surface 3 having a large frictional resistance such as concrete or tile by a fixing means (not shown) such as a bolt. The hand wash basin unit 1 faces a wall surface having a tubular pipe mounting pipe (not shown) for mounting the pipe. The pipe mounting pipe may be provided on the floor surface 3. The counter 9 is placed above a metal frame 7 composed of a rectangular parallelepiped metal grid. The hand-washing unit 1 includes a counter 9 provided with a hand-washing device having a bowl portion 15 and a faucet 12 on which the user can wash and wash the hands, and the hand-washing device unit 1 in front of the hand-washing device unit 1. It has a flat plate-shaped decorative panel 10 for improving the design of the (see FIG. 1).

The counter 9 equipped with a hand wash basin has a rectangular shape when viewed upward. It has a counter surface 9m composed of an upper surface 9a, a lower surface 9b, and a step surface 9c. The lower surface 9b of the counter surface 9m has a bowl portion 15 connected to the drain pipe 11 and having a drain port 13 for draining water. The bowl portions 15 are provided one by one in the left-right direction. Further, the bowl portion 15 is integrally molded on the counter surface 9 m. For each bowl portion 15, a faucet connected to a water supply pipe and for discharging water to the bowl portion 15 is attached to the stepped surface 9c. Handrails 17 are provided on the left and right sides of the bowl portion 15 located on the right side so that the user can put his / her hand on it to stabilize his / her body. The handrail 17 is attached to the lower surface 9b of the counter 9.

The metal frame 7 has a counter mounting portion 19 for mounting the counter 9, both front corners of the counter mounting portion 19 and an intermediate portion in front of the counter mounting portion 19, and further behind the counter mounting portion 19. Has support legs for supporting the counter 9 from the floor surface 3.

The counter mounting portion 19 is a rectangular frame when viewed upward. The counter mounting unit 19 is divided into a third counter mounting unit 27, a central counter mounting unit 31, and a second counter mounting unit 29.

On the left side of the counter mounting portion 19, there is an inverted U-shaped third counter mounting portion 27 that is open toward the center. Further, the right side of the counter mounting portion 19 also has a U-shaped second counter mounting portion 29 that is open toward the center. A central counter mounting unit 31 is provided between the third counter mounting unit 27 and the second counter mounting unit 29. The central counter mounting portion 31 is a central counter mounting portion main body 31a in which the H-shape is transposed in an upward view, and (see FIG. 3) behind the central counter mounting portion main body 31a from the left and right. It has a connected central counter mounting portion rear extension member 31b, and a central counter mounting portion front extension member 31c in front of the central counter mounting portion rear extension member 31b. The central counter mounting portion rear extension member 31b and the central counter mounting portion main body 31a are configured to be slidable and expandable. It is slidable in the directions of the arrows a2 and a3 in FIG.

Further, both the central counter mounting portion front extension member 31c and the central counter mounting portion 31 are configured to be slidable and expandable. It is slidable in the directions of the arrows a6 and a7 in FIG. The central counter mounting portion rear extension member 31b, the rear of the third counter mounting portion 27, and the rear of the second counter mounting portion 29 are slidably configured to expand and contract. It is slidable in the directions of the arrows a1 and a4 in FIG. Similarly, the front of the third counter mounting portion 27 and the front of the second counter mounting portion 29 are slidably configured to be expandable and contractible. It is slidable in the directions of the arrows a5 and a6 in FIG.

The third counter mounting portion 27 has a support leg 21a in front of the third counter mounting portion in front of the third counter mounting portion 27. The central counter mounting portion 31 has a support leg 21b in front of the central counter mounting portion in front of the central counter mounting portion 31. The second counter mounting portion 29 has a support leg 21c in front of the second counter mounting portion in front of the second counter mounting portion 29. At both ends behind the central counter mounting portion rear extension member 31b, support legs 21d behind the central counter mounting portion are provided.

The lower end of the support leg 21d behind the central counter mounting portion has a long plate-shaped metal front-rear reinforcing member 23 extending forward. At the lower ends of the support legs 21a in front of the third counter mounting portion and the support legs 21b in front of the central counter mounting portion, a long plate-shaped sliding and expandable left / right reinforcing member 25 extending in the left-right direction is provided. Have. It is slidable in the direction of the arrows a9 and a10 in FIG. Further, the lower ends of the support legs 21c in front of the second counter mounting portion and the support legs 21b in front of the central counter mounting portion have left and right reinforcing members 25 that can be slidably expanded and contracted. It is slidable in the direction of the arrows a11 and a12 in FIG. Further, the front-rear reinforcing member 23 is connected to the left-right reinforcing member 25.

The wall surface has a pipe mounting pipe 5. The pipe is supported by a pipe support member 35 attached to a support leg 21 behind the counter mounting portion 19. The pipe support member 35 includes an L-shaped metal pipe support member mounting portion 35a having a screw hole opened, a U-shaped holding metal fitting 35b from below the pipe, a pipe support member screw hole 35c, a nut, and the like. It is composed of fastening means (not shown). The pipe is fixed to the pipe support member 35 so as to follow the U o'clock shape. (See FIG. 5).

As shown in FIG. 6, behind the third counter mounting portion 27, a bolt 33 and a bolt hole (not shown) which are fixing members for fixing the third counter mounting portion 27 to the wall surface are provided. There is. Similarly, bolts 33 and bolt holes (not shown), which are fixing members for fixing the second counter mounting portion 29 to the wall surface, are also provided behind the second counter mounting portion 29.

The front and rear reinforcing members 23 and the left and right reinforcing members 25 of the central counter mounting portion 31, the left and right reinforcing members 25 of the third counter mounting portion 27, and the left and right reinforcing members 25 of the second counter mounting portion 29 are counter-mounted. Adjuster bolts 34 for adjusting the height of the placing portion are provided at one place each.

Hereinafter, the function of the metal frame 7 in the embodiment of the present invention will be described.
The second counter mounting portion 29 has a support leg 21c in front of the second counter mounting portion in front of the second counter mounting portion 29. Further, the third counter mounting portion 27 also has a support leg 21a in front of the third counter mounting portion. Therefore, even when the second counter mounting portion 29 and the third counter mounting portion 27 are slid and expanded / contracted with respect to the central counter mounting portion main body 31a, they collide with the pipe connecting pipe provided on the wall surface. There is nothing to do.

Further, the front and rear reinforcing members 23 move together with the support legs in the installation area of the lower end of the front support leg 21 when the counter mounting portion 19 expands and contracts, and the left and right reinforcing members 25 and the floor surface 3 that slide with the lower end. Compared to the one, only the support leg 21a in front of the third counter mounting portion and the support leg 21b in front of the central counter mounting portion are rubbed against the floor surface 3 and are therefore smaller. Therefore, the counter 9 is placed above the counter mounting portion 19, and the counter 9 passes through the counter mounting portion 19 to the support leg 21a in front of the third counter mounting portion in front of the third counter mounting portion. Even if the support legs 21b in front of the central counter mounting portion are strongly pressed against the floor surface 3, the counter mounting portion 19 can be smoothly moved without being easily caught by the unevenness of the floor surface with a relatively small force.

Further, the support legs 21d behind the central counter mounting portion extend downward from both ends of the central counter mounting portion rear extension member 31b. Further, the lower ends are connected to each other on the floor surface 3. Therefore, when the third counter mounting portion 27 or the second counter mounting portion 29 is moved with the counter mounted above the counter mounting portion 19, the front of the counter 9 is lifted to lift the counter 9. When the third counter mounting portion 27 to the second counter mounting portion 29 are moved by moving the center of gravity backward, the metal frame 7 does not wobble in the left-right direction.

Further, the pipe support member 35 is attached to the support leg 21d behind the central counter mounting portion extending downward from the central counter mounting portion rear extension member 31b. Therefore, even when the counter mounting portion 19 is expanded and contracted after the piping is arranged, the piping is assembled to the piping support member 35, so that the counter mounting portion 19 is not affected by the arrangement of the piping. The placement portion 19 can be expanded and contracted.

Further, since the third counter mounting portion 27 and the second counter mounting portion 29 are not provided with support legs at the rear and the support legs 21a and 21c are provided only at the front, the floor surface 3 is distorted. Susceptible to. If the floor surface 3 is greatly distorted, the heights of the third counter mounting portion 27, the second counter mounting portion 29, and the central counter mounting portion 31 will be different, and the upper surface 19 of the counter mounting portion will have different heights. Since the counter 9 mounted on the upper surface may not be mounted parallel to the floor surface, it is necessary to adjust the height of the upper portion of each counter mounting portion 19 to be uniform.

At this time, after the third counter mounting portion 27 and the second counter mounting portion 29, which are located away from the support legs 21a and 21c of the third counter mounting portion 27 and the second counter mounting portion 29. Bolts 33 and bolt holes (not shown), which are fixing members for fixing each to the wall surface, are provided at the ends. As a result, the heights of the third counter mounting portion 27, the second counter mounting portion 29, and the central counter mounting portion 31 can be adjusted to be uniform.

Further, as a result, when the counter 9 is placed on the upper part of the counter mounting portion 19, an unbalanced load is not applied to the polymerization region, so that the polymerization region where the sliding portions of the counter mounting portion 19 overlap each other. It is possible to prevent bending from occurring at the boundary between the sliding portions and the region where the sliding portions do not overlap with each other.

Further, as in the present embodiment, the front-rear reinforcing member 23 and the left-right reinforcing member 25 of the central counter mounting portion 31 are provided with two places each, the left-right reinforcing member 25 of the third counter mounting portion 27, and the second one. By providing adjuster bolts 34 at one place for each of the left and right reinforcing members 25 of the second counter mounting portion 29, not only the counter mounting portion 19 but also the adjuster bolts have the third counter mounting portion 27 and the third counter mounting portion 27. (2) The heights of the counter mounting portion 29 and the central counter mounting portion 31 can be adjusted to be uniform.

An example of the construction procedure in the present embodiment will be described below with reference to FIGS. 2, 3, and 4. First, the metal frame is divided into a central frame, a third frame, and a second frame. These will be described.

The configuration of the central frame will be described. A central counter mounting portion rear extension member 31b and a central counter mounting portion front extension member 31c are slidably assembled to the central counter mounting portion main body 31a. At the same time, a support leg 21b in front of the central counter mounting portion is preliminarily assembled in front of the central counter mounting portion main body 31a. Further, support legs 21d behind the central counter mounting portion are preliminarily assembled at both ends of the central counter mounting portion front extension member 31c. A front-rear reinforcing member 23 extending forward is preliminarily attached to the support leg 21d behind the central counter mounting portion. Further, the left and right reinforcing members 25 are preliminarily assembled in front of the front and rear reinforcing members 23. It should be noted that the positions a1, a3, a6, a7, a10, and a11 are slidably connected to each other (see FIG. 3).

The configuration of the third frame will be described. A support leg 21a in front of the third counter mounting portion is preliminarily attached to the third counter mounting portion 27.

The configuration of the second frame will be described.
A support leg 21c in front of the second counter mounting portion is preliminarily attached to the second counter mounting portion 29.

Next, the installation of the above frame will be described. The central frame is placed on the center of the floor where the hand wash basin unit 1 is to be installed. Then, the third frame is placed on the left side of this central frame, and the second frame is placed on the right side. Regarding the connection between the central frame and the third frame, they are slidably connected at the positions a1, a5, and a9, respectively. Regarding the connection between the central frame and the second frame, they are slidably connected at the positions a4, a8, and a12, respectively. For fixing for positioning the sliding, a fastening means such as a screw is used.

Regarding the case where the metal frame is slid so that the region where the sliding portions of the counter mounting portions overlap, that is, the polymerization region can be changed, and the frame is expanded and contracted, the state of FIG. 2 is the most contracted. The state shown in FIG. 4 is the most extended state.

By sliding the frame with respect to the sliding portions a1 to a12 in FIG. 3, the most contracted state can be changed to the most extended state.

For example, when the hand wash basin is located symmetrically in both the left and right directions of the counter 9, as in the present embodiment, sufficient strength can be obtained by keeping the sliding portions at regular intervals. Can be kept.

On the other hand, when the hand wash basin is located asymmetrically, it is desirable to position the central counter mounting portion rear extension member 31b of the central frame below the hand wash basin. This is because it is necessary to maintain a sufficient fixing strength that can withstand a load applied to the counter 9 by a user touching the counter 9. In such a case, there are many sliding points, and it is a great merit that the frame can be slidably configured and expanded and contracted around the central frame.

1 ... Hand wash unit 3 ... Floor surface 5 ... Piping mounting pipe 7 ... Metal frame 9 ... Counter 9a ... Upper surface 9b ... Lower surface 9c ... Step surface 10 ...・ ・ Decorative panel 11 ・ ・ ・ Drain pipe 12 ・ ・ ・ Water faucet 13 ・ ・ ・ Drain port 15 ・ ・ ・ Bowl part 17 ・ ・ ・ Handrail 19 ・ ・ ・ Counter mounting part 21a ・ ・ ・ Third counter mounting Support leg 21b in front of the portion ... Support leg 21c in front of the central counter mounting portion ... Support leg 21d in front of the second counter mounting portion ... Support leg 23 behind the central counter mounting portion・ ・ ・ Front and rear reinforcing members 25 ・ ・ ・ Left and right reinforcing members 27 ・ ・ ・ Third counter mounting part 29 ・ ・ ・ Second counter mounting part 31 ・ ・ ・ Central counter mounting part 31a ・ ・ ・ Central counter mounting part Main body 31b ... Central counter mounting part Rear extension member 31c ... Central counter mounting part Front extension member 33 ... Bolt 34 ... Adjuster bolt 35a ... Piping support member mounting part 35b ... Holding metal fittings 35c ... Piping support member screw holes a1 to a12 ... Arrows

Claims (5)

It is a hand wash basin unit equipped with a counter equipped with a hand wash basin and a metal frame for placing the counter on the upper part, and is installed facing the wall surface.
The metal frame has a counter mounting portion for mounting a counter on the upper portion, and support legs extending downward from the counter mounting portion and contacting the floor surface to support the counter mounting portion. And
The counter mounting portion is divided into left and right a first counter mounting portion and a second counter mounting portion that slides with each other and expands and contracts with the first counter mounting portion.
The first counter mounting portion has the support legs in the rear and front, and also has left and right reinforcing members extending from the lower end side of the front support legs toward the second counter mounting portion, and the rear support. It has a front-rear reinforcing member that connects the lower end of the leg and the left-right reinforcing member in the front-rear direction.
The second counter mounting portion has the support leg in the front, extends in the left-right direction from the lower end of the support leg toward the left-right reinforcing member, and is slidably connected to the left-right reinforcing member. A hand wash basin unit that features that. The first counter mounting portion is divided into a central counter mounting portion and a third counter mounting portion that slides with each other and expands and contracts with the central counter mounting portion.
The third counter mounting portion has the support leg in front thereof.
The central counter mounting portion has a support leg on the third counter mounting portion side behind the third counter mounting portion .
The central counter mounting portion includes a second left and right reinforcing member extending from the lower end side of the front support leg toward the third counter mounting portion side, and the third counter mounting portion behind the central counter mounting portion. It has a second front-rear reinforcing member extending forward from the lower end of the portion-side support leg and connected to the second left-right reinforcing member.
The third counter mounting portion extends in the left-right direction from the lower end of the support leg in front of the third counter mounting portion toward the second left and right reinforcing member, and is slidably connected to the second left and right reinforcing member. The hand wash basin unit according to claim 1, wherein the hand wash basin unit is made. The central counter mounting portion has a pair of the supporting legs on at least one side of the second counter mounting portion side or the third counter mounting portion side in the rear.
The hand wash unit according to claim 2, wherein the upper ends and lower ends of the pair of support legs are connected to each other by a left-right direction stabilizing portion extending in the left-right direction so that the counter does not swing in the left-right direction. .. The hand wash basin unit according to claim 3, wherein the support leg of the central counter mounting portion is provided with a pipe support portion for supporting the pipe. 2. The second aspect of the present invention, wherein a fixing member fixed to the wall surface is provided at a rear end portion of the second counter mounting portion and the third counter mounting portion facing the wall surface. Hand wash unit.

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