JP2001169948A - Bathtub with overflowing water processing function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To configurate a bathtub so as to make overflowing water flow out from the specified part of a flange part, and to fill hot water to the original height of the flange part without lowering the hot water surface when supplying the hot water to comfortably bathe, and to easily and surely cover the bathtub by a general purpose lid. SOLUTION: For this bathtub with an overflowing water controlling function, an overflow part 3 for making the overflowing water flow to the side of a place 1 outside the bathtub is provided at a prescribed position in the longitudinal direction of the flange part 2 on the side of the place 1 outside of the bathtub. The overflow part 3 is formed at the same height as the flange part 2 but its curvature ratio is larger than that of the flange part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bathtub suitable for a barrier-free bathroom in which a step at a doorway of the bathroom is eliminated, and more particularly to a bathtub having a function of treating overflow water.

[0002]

2. Description of the Related Art Conventionally, a bathtub of this type has an overflow portion formed in a groove shape at a predetermined position in a longitudinal direction of a flange portion on a washing place side, as disclosed in Japanese Patent Application Laid-Open No. H11-148158. And (hereinafter, Conventional Example A
As in the invention described in Japanese Patent Application Laid-Open No. 10-323295, the flange portion on the washing side is formed in a concave curved surface shape, and overflow water is formed to be guided from a specific location of the flange portion to the washing side. (Hereinafter referred to as Conventional Example B).

[0003] Conventionally, as a bathtub of this type, for example, as in the invention described in Japanese Patent Application Laid-Open No. 9-201302, an edge of a flange portion on a washing place side is provided so that overflow water can flow along an apron. There is one in which the flange portion is greatly curved over the entire length in the longitudinal direction (hereinafter, Conventional Example C).
).

[0004]

However, this type of bathtub is intended to eliminate the adverse effects of overflowing water from a bathtub in a barrier-free bathroom where there is no step between the washing room and the floor of the dressing room. is there.

That is, in this type of bathroom, since there is no step at the entrance of the bathroom, if overflow water flows out from the entire flange portion of the bathtub, the amount of water reaching the entrance of the bathroom increases, and the floor of the dressing room is wet. . However, in order to eliminate such disadvantages, if a drain (with grating) with a slit or the like into which drainage flows is formed at the entrance of the bathroom,
This drain makes the bather feel that the washing place is narrow, and takes time and effort to clean the drain and the grating.

Conventional examples A and B are intended to solve such a problem by forming a groove-like portion in the flange portion or forming the flange portion into a concave curved surface.

However, the baths of the conventional examples A and B have a serious problem that the water level at the time of full water is determined by the groove portion or the concave curved surface. That is, in the case of the conventional examples A and B, the bathtub water for entering the original height of the flange portion is caused to overflow from the groove portion and the like, and the bathing water is lowered when the water level is full. There was a disadvantage of damaging it.

Further, in the case of the conventional examples A and B, as described above, the form of the flange portion was changed. Therefore, even if a shutter type lid was used, a gap was formed between the lid and the flange portion. Inevitably, it was difficult to cool the hot water, and it was necessary to use nerves for positioning when closing the lid.

In the bathtub of this type, when overflowing water scatters to the washing place, there is a fear that the overflowing water may wet the floor of the dressing room, so that the overflowing water can be surely flowed along the apron. It is desirable that it is formed as follows.

However, in the conventional example C, overflow water is caused to flow along the apron only by the curved shape of the outer edge of the flange portion. It could not be cut, and as a result, overflowing water was inevitably scattered in the washing area.

The present invention has been proposed in view of such problems of conventional products. Therefore, the technical problem of the present invention is not only to form overflow water to be able to flow out of a specific portion of the flange portion, but also to lower the water level when full,
It is an object of the present invention to provide a bathtub with a function of treating overflowing water, which is formed so that hot water can be spread to the height of the original flange portion to comfortably take a bath, and a general-purpose lid can be easily and securely sealed.

Another object of the present invention is to provide a bathtub having a function of treating overflow water, which is formed so that even if the overflow water is large, drainage can be surely performed along the apron, and adverse effects caused by the overflow water can be removed. .

[0013]

The present invention employs the following technical means in order to solve the above-mentioned problems.

That is, according to the present invention, as shown in FIG. 1, an overflow portion 3 is formed at a predetermined position in the longitudinal direction of a flange portion 2 on the washing station 1 side to allow overflow water to flow to the washing station 1 side. A tub with a water treatment function,
The overflow portion 3 is formed to have the same height as the flange portion 2 connected thereto and to have a greater curvature than the flange portion 2 (claim 1).

Here, the predetermined position specifically means a central position in the longitudinal direction of the flange portion 2 or both side portions.
The state where the curvature is large means that, when the water level rises, the water in the overflow portion 3 is larger than that in the flange portion 2.
It means that it is formed in a curved surface form that easily flows outward. Specifically, the curvature of the inside or outside of the overflow portion 3 or both edges is determined by the flange portion 2
Achieved by a larger selection.

In the case of the present invention, the overflow section 3
1A and 3A are not limited to the case where the flange portion 2 is formed so as to draw a gentle curve in a plan view, and may be formed in a plan view as shown in FIGS. 4 to 6. May be formed in a narrow shape. In the embodiment of FIG. 4, the overflow portion 3 is formed to be narrow at the center position in the longitudinal direction of the flange portion 2 with the outside being cut off, and the embodiment of FIG. It is formed in a narrow shape. In the embodiment shown in FIG. 6, both sides are hollowed out so as to be narrow.

Thus, in the case of the present invention, the overflow section 3
Is preferably a curved surface that is convexly curved upward in a direction orthogonal to the longitudinal direction of the flange portion 2 (claim 2).

Here, the upwardly convex curved surface means that there is no planar portion on the top surface of the overflow section 3. In the case of the present invention, there is an advantage that water easily flows out since the top surface of the overflow section 3 has no flat surface.

In the case of the present invention, as shown in FIGS. 1B and 2, the cross-sectional shape of the overflow portion 3 is preferably substantially semicircular (claim 3).

In this case, the inner edge of the overflow portion 3
Since the curvature of the outer edge is the same, and the overflow portion 3 is formed in a semi-cylindrical shape or a tunnel shape, water can easily flow out, and the overflow portion 3 when entering or leaving the bathtub.
There is an advantage that even if the user touches the hand, it is easy to adjust to the hand, and cleaning is also easy.

Further, the bath to achieve the object of the present invention includes:
As shown in FIG. 7, an overflow portion 3 for flowing overflow water to the washing place 1 is formed at a predetermined position in the longitudinal direction of the flange 2 on the washing place 1 side. As a result, the surface of the overflow portion 3 is provided with fine irregularities, and the
There is one characterized by having a larger surface roughness (claim 4).

Here, the expression that the surface roughness is large means that the overflow portion 3 is formed in a state where the surface tension does not work (small) compared to the flange portion 2. Specifically, at the place where the overflow portion 3 of the mold is to be formed, fine irregularities are formed by electric discharge machining, or a superhydrophilic sheet whose surface is processed into a fine irregular surface is set in the mold. This is achieved by, for example, forming and processing glass fiber reinforced plastic (FRP) with this type of mold.

In the case of the present invention, the overflow water W (see FIG. 8) in the flange portion 2 flows as shown in FIG. It becomes difficult. On the other hand, in the overflow section 3, the surface tension of the water W is lost as shown in FIG.

In FIG. 7, D1 represents a range where the surface tension is small, and D2 is a range where the surface tension is large.
In the case of the product of the present invention, the surface roughness may be varied in the range of D1. That is, in the present invention, for example, the inner edge side may be formed coarser than the outer edge side so that the start of water flow can be reliably grasped. In the case of the product of the present invention, the shape of the overflow portion 3 is the same as that shown in FIG.
May be formed in a tapered shape in a plan view in a state where the inner edge side 3a is longer than the outer edge side 3b.

According to the present invention, the product according to any one of claims 1 to 3 is characterized in that the surface of the overflow portion 3 is provided with fine irregularities and the surface roughness is larger than that of the flange portion 2 connected thereto. It may be performed (claim 5).

In this case, in combination with the curved shape of the overflow section 3, the overflow water can be more easily discharged.

According to the present invention, as shown in FIGS. 10 and 11, for example, the product according to any one of claims 1 to 5 includes an apron 6 on the side facing the washing place 1 and an overflow section. The front position of this apron 6 corresponding to 3 may be formed in a downward slope toward the washing place 1 (claim 6).

In this case, the overflow water flowing out of the overflow section 3 can be reliably guided to the drain groove 4 along the apron 6. 5 is a slit-shaped drain port 5a.
Is the drain lid formed.

Further, as a bathtub for achieving the object of the present invention,
As shown in FIG. 12, a tub provided with an apron 6 on the side facing the washing place 1 and having a function of treating overflow water, wherein the lower part of the apron 6 projects to the washing place 1 side. There is an apron 6 characterized in that the front surface is formed with a downward slope toward the washing place 1 (claim 7).

In the case of the present invention, the gradient of the apron 6 is arbitrary. However, if the overhang to the washroom 1 side is large, there is a problem in entering and exiting the bath, and the angle A (see FIG. 13) is usually selected from about 1 degree to several degrees in order to narrow the washroom space. Is preferred. In the case of the present invention,
The drain 4 of the washing place 1 is formed on the bathtub side along the apron 6.

In the present invention, as shown in FIGS. 14 to 17, the left and right sides of the front surface of the apron 6 are formed to have a step 61 with a stepwise vertical cross section, and the upper surface 61a of the step 61 is The apron 6 may be formed so as to have a downward slope toward the center in the longitudinal direction, and may be formed substantially at the center of the apron 6 so as to be flush with the front surface of the apron 6.

In this case, the overflow water is guided to the substantially central portion of the apron 6 by the step 61 and transmitted from the position to the front of the apron 6 to be drained downward. Therefore, according to this, since the length of the drain ditch 4 can be shortened, compared with the case where the drain ditch 4 is formed over the entire length in the longitudinal direction of the bathtub, the effective space of the washing place 1 can be widened and the appearance of the bath can be refreshed. Can be given to others. Further, in this case, since the step 61 functions as a pattern on the front surface of the apron 6, the design of the apron 6 can be diversified in various ways, and a bathtub having an excellent form and a high commercial value can be provided.

In the case of the present invention, the step 61 is preferably formed symmetrically on the front surface of the apron 6. This is because, in this case, the overflow water can be guided to the substantially central portion of the apron 6 in a well-balanced manner, and the aesthetic appearance is stabilized. However, the present invention is not limited to the case where the step 61 is formed symmetrically. In the case of the present invention, the number and shape of the steps 61 formed, the width of the upper surface 61a,
The gradient or the like is arbitrary, and the step 61 may be formed closer to the center as the position of the lower end 61b becomes lower step 61 as shown in FIG. In this case, water can be accurately guided to the drain 4. According to the present invention, as shown in FIG. 16, in this embodiment, the apron 6 is formed to have a concave curved surface with a substantially central portion recessed toward the bathtub side, but has a convex curved shape directed to the washing place 1 side. The apron 6 may be formed in a flat plate shape which is not curved but is entirely inclined.

The apron 6 whose front surface is inclined in this way.
In the case of the product according to the present invention, the side edge 6a of the front surface which abuts on the wall panel 8 at the side of the apron 6 is formed vertically as shown in FIGS. Preferred (claim 9).

In this case, the seam 8a of the wall panel 8
Since the side edge 6a of the apron 6 can be fitted,
The appearance of this part is improved.

Further, as a bath tub for achieving the object of the present invention,
Some are shown in FIGS. That is, the product of the present invention is a bathtub having an apron 6 on the side facing the washing place 1 and having a function of treating overflow water, and a stepped portion 7 is provided above the apron 6 in the longitudinal direction.
The upper surface 7a of the stepped portion 7
Are formed so as to be inclined downward toward the central portion in the longitudinal direction of the apron 6, and are formed substantially flush with the front surface of the apron 6 at substantially the central portion of the apron 6 ( Claim 10).

In the case of the present invention, the overhang range of the step portion 7, the gradient of the upper surface 7a, and the like are arbitrary. The overflow water is guided to the substantially central position of the apron 6 along the upper surface 7a of the step portion 7, flows down from this position, flows into the drain groove 4 (see FIG. 11) through the drain port 5a of the drain lid 5, and is drained. You.

The case shown in FIGS. 23 and 24 is an improvement in the case where the overflow portion 3 is formed in the flange portion 2 in a groove shape. In this case, the inclined surface 1a forming the overflow portion 3 is formed with a downward slope on the side of the bathtub, and the inclined surface 2a and the flat surface portion 2b following the inclined surface 2a are also formed inside the flange portion 2.
Are formed. 1b is a plane part forming the overflow part 3. The flat portion 1b is formed flush with the flat portion 2b. In addition, c shows the upper surface of the flange portion 2.

[0039]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

In FIG. 1 and the like, 1 is a washing place, and 2 is a flange portion on the washing place 1 side. Reference numeral 3 denotes an overflow section for flowing overflow water to the washing place 1 side. In this embodiment, the overflow portion 3 is formed at a central position in the longitudinal direction of the flange portion 2 so as to draw a gentle curve in plan view in the flange portion 2.

The overflow portion 3 is formed at the same height as the flange portion 2 connected thereto and has a larger curvature than the flange portion 2. In this embodiment, the cross-sectional shape of the overflow section 3 is shown in FIG.
As shown in FIG. 2, a cross section in a direction orthogonal to the longitudinal direction of the flange portion 2 is formed in a substantially semicircular shape.

In the case of the present invention, when the water level rises, the water at the position of the overflow portion 3 comes close to the outer periphery of the flange portion 2 and flows out first. Once the water flows out, it is drawn by the overflow water to form a regular water flow, and the water that has flowed out flows through a drain groove 4 (see FIG. 11) formed at the position of the washing place 1 corresponding to the overflow portion 3. Drained.

Next, a preferred embodiment of the bathtub according to the present invention will be described with reference to FIGS. Note that the same parts as those in the above example are denoted by the same reference numerals, and detailed description is omitted.

In the case of the present invention, the overflow section 3
Is formed at a central position in the longitudinal direction of the flange portion 2 on the washing place 1 side. The overflow portion 3 has fine irregularities on its surface, and the flange portion 2 connected thereto
The surface roughness is larger. In this embodiment, the unevenness of the overflow portion 3 is formed by a mold. That is, a position corresponding to the overflow portion 3 of the mold is formed on a fine uneven surface by electric discharge machining, and is formed by a molding method using this mold.

In the case of the present invention, the overflow section 3
In FIG. 8B, as shown in FIG. 8B, no surface tension acts on the overflow water W, and as a result, the water W flows out. On the other hand, in the flange portion 2, as shown in FIG. A, the surface of the water W contracts and becomes difficult to flow due to surface tension.

Next, an embodiment of the bathtub according to the present invention will be described with reference to FIGS. Note that the same parts as those in the above example are denoted by the same reference numerals, and detailed description is omitted.

In the case of the present invention, an apron 6 is provided on the side facing the washing place 1. The lower portion of the apron 6 projects toward the washing place 1, and the front surface of the apron 6 is formed with a downward slope toward the washing place 1. In the case of this embodiment, the gradient is selected such that the angle A is 2 degrees.

In the case of the present invention, the overflow water passes along the apron 6 and then runs down the front surface of the apron 6 after passing over the flange portion 2. Therefore, in the product of the present invention, overflow water can be drained by forming the drainage ditch 4 in the washing place 1 below the apron 6 along the longitudinal direction of the apron 6.

Next, an embodiment of the bathtub according to the present invention will be described with reference to FIGS. Note that the same parts as those in the above example are denoted by the same reference numerals, and detailed description is omitted.

Reference numeral 7 denotes a step formed over the apron 6 in the longitudinal direction. The step portion 7 is formed so as to protrude toward the washing place 1 side. The upper surface 7a of the stepped portion 7 is formed so as to be inclined downward toward the central portion in the longitudinal direction of the apron 6, and is formed substantially flush with the front surface of the apron 6 at substantially the central portion of the apron 6.

In the case of the product of the present invention, overflow water flowing out beyond the flange portion 2 is received by the upper surface 7a of the step portion 7, and travels along the upper surface 7a to reach a substantially central position of the apron 6. Then, it flows down from this position of the apron 6 to the washing place 1, and is drained through the drain port 5a of the drain lid 5 (see FIG. 21).

[0052]

As described above, according to the present invention, the overflow portion is formed at the same height as the flange portion connected thereto, and has a large curvature. Therefore, according to this, not only can overflow water flow out of a predetermined position to drain water, it is possible to comfortably take a bath by filling hot water to the original height of the flange without lowering the water level when the water is full. The lid can be sealed easily and securely.

According to a fourth aspect of the present invention, the surface roughness of the overflow portion is made different from that of the flange portion connected to the overflow portion, and overflow water is controlled by utilizing the difference in surface tension. Therefore, according to this, not only can the same effect as the above-described bathtub of the present invention be exhibited, but also because of the treatment of overflow water,
Since there is no need to sacrifice the shape of the bathtub, there is an advantage that the bather does not feel uncomfortable in appearance.

According to a seventh aspect of the present invention, the front surface of the apron is formed with a downward slope toward the washing place. Therefore, according to this, even when the overflowing water is large, the drainage can be reliably drained along the apron, and the floor surface of the washing room and the dressing room is not wet by the splashing overflowing water.

Further, the present invention according to claim 10 is characterized in that overflowing water is received on the upper surface of the step, and the upper surface is transmitted to flow from the substantially central position of the apron. It is easy to control overflow water and can prevent scattering.

[Brief description of the drawings]

FIG. 1 shows a preferred embodiment of the bathtub of the present invention, wherein A is a plan view, B is a cross-sectional view of A along the line BB, C is a cross-sectional view of A along the line CC, and D is a DD of A. It is a line sectional view.

FIG. 2 is a perspective view of a main part of the bathtub with a part cut away.

FIG. 3 shows another embodiment of the bathtub, wherein A is a plan view,
B is a sectional view taken along line BB of A.

FIG. 4 shows another embodiment of the above bathtub, wherein A is a plan view of a main part, and B is a cross-sectional view taken along line BB of A.

FIG. 5 shows another embodiment of the bathtub, wherein A is a plan view of a main part and B is a cross-sectional view taken along line BB of A.

6 shows another embodiment of the same bathtub, wherein A is a plan view of a main part, and B is a cross-sectional view taken along the line BB of A. FIG.

FIG. 7 is a main part plan view showing another configuration of the bathtub of the present invention.

8A and 8B are cross-sectional views of a main part for explaining the operation of the bathtub of the present invention in FIG. 7;

9 is a main part plan view showing another embodiment of the bathtub of the present invention according to FIG. 7;

FIG. 10 is a plan view showing another embodiment of the bathtub of the present invention according to FIG. 1;

FIG. 11 is an enlarged sectional view of a main part along line XI-XI in FIG. 10;

FIG. 12 is a sectional view of a main part showing another configuration of the bathtub of the present invention.

FIG. 13 is a cross-sectional view illustrating a main part of the bathtub of the present invention according to FIG. 12;

FIG. 14 is a front view showing another embodiment of the bathtub of the present invention according to FIG.

FIG. 15 is a cross-sectional view of a main part along line XV-XV in FIG. 14;

FIG. 16 is an end view taken along line XVI-XVI of FIG. 14;

FIG. 17 is a front view showing another embodiment of the bathtub of the present invention according to FIG. 14;

FIG. 18 is a main part perspective view showing another embodiment of the bathtub of the present invention according to FIG. 12 and the like.

FIG. 19 is a plan view of a main part of the embodiment in FIG. 18;

FIG. 20 is a front view of a relevant part showing still another configuration of the bathtub of the present invention.

21 is a plan view of a main part of the bathtub of the present invention according to FIG. 20.

FIG. 22 is a cross-sectional view of a main part along line XXII-XXII in FIG. 20;

FIG. 23 is a plan view showing an example in which a step is formed in a flange portion.

FIG. 24 is a cross-sectional view of a main part along line XXIV-XXIV in FIG. 23;

[Explanation of symbols]

 1 Washing area 2 Flange part 3 Overflow part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshikazu Matsunobu 93 Edo-cho, Chuo-ku, Kobe, Hyogo Prefecture Inside Noritz Co., Ltd. (72) Inventor Kuki Shibata 93, Edocho, Chuo-ku, Kobe, Hyogo Prefecture Inside Noritz Co., Ltd. 2D032 AA11 AA17

Claims (10)

[Claims] 1. A tub with an overflow water treatment function, wherein an overflow portion for flowing overflow water to a wash site side is formed at a predetermined position in a longitudinal direction of a flange portion on a wash site side, wherein the overflow portion is provided. A tub having a function of treating overflow water, wherein the tub has the same height as the above-mentioned flange portion connected thereto and has a larger curvature than the flange portion. 2. The treatment of overflow water according to claim 1, wherein the overflow section has a cross-sectional shape that is upwardly convex and curved in a direction perpendicular to the longitudinal direction of the flange section. Bathtub with function. 3. The bathtub according to claim 2, wherein the overflow section has a substantially semicircular cross section. 4. A bathtub with an overflow water treatment function, wherein an overflow portion for flowing overflow water to a washing site side is formed at a predetermined position in a longitudinal direction of a washing portion side flange portion. A tub with a function of treating overflow water, characterized in that fine irregularities are provided on the surface and the surface roughness is formed larger than a flange portion connected to the surface. 5. The bathtub according to claim 1, wherein the surface of the overflow portion is provided with fine irregularities, and the surface roughness is formed larger than the flange portion connected to the overflow portion. Bathtub with overflow water treatment function. 6. The bathtub according to claim 1, further comprising an apron on a side facing the washing place, wherein a front position of the apron corresponding to the overflow section is inclined downward toward the washing place. A tub with overflow water treatment function, characterized by being formed. 7. A tub with overflow water treatment function formed with an apron on a side facing a washing place, wherein a lower portion of the apron is protruded toward the washing place side, and a front surface of the apron faces the washing place. A tub with overflow water treatment function characterized by a downward slope. 8. The bathtub according to claim 7, wherein the left and right sides of the front surface of the apron are formed with a step in a vertical cross-sectional step shape, and the upper surface of the step descends toward the central portion in the longitudinal direction of the apron. A tub having a function of treating overflow water, wherein the tub is formed to have a gradient and to be substantially flush with a front surface of the apron at a substantially central portion of the apron. 9. A tub according to claim 7, wherein a side edge of a front surface which abuts on a wall panel at a side portion of the apron is formed vertically. With bathtub. 10. A tub provided with an apron on a side facing a washing place and provided with a function of treating overflow water, wherein a step portion is formed on an upper portion of the apron so as to extend in a longitudinal direction to the washing place side. The upper surface of the step portion is formed so as to be inclined downward toward the central portion in the longitudinal direction of the apron, and is formed substantially flush with the front surface of the apron at substantially the central portion of the apron. Bathtub with overflow water treatment function.