JP2007260180A - Bathtub formed of sheets - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathtub formed of sheets, which provides the feeling of bathing that is unconventional, entirely original and comfortable, is manufactured at low costs and provides reduced environmental load. <P>SOLUTION: In the bathtub 1 formed of the sheets, a bathtub body 2 opens upward, having flexibility and being formed into an approximate arc from a side view, in which a sheet bottom part 2a consisting of waterproof sheets without water leakage has a middle side lower than both end sides in a longitudinal direction M. Support members 3 hang and support at least four corners of upper ends 2c of the bathtub body 2. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sheet bathtub that is used by being installed in a unit bathroom.

At present, most bathtubs as industrial products are made of resin, but such resin bathtubs have two problems. One is the negative impact on the environment. Resin bathtubs that cannot be reused or incinerated may be subject to regulation soon. The other is a huge mold investment for molding. The bathtub manufacturing business is already stalled by many companies due to the shortening of product life and the decrease in housing starts. Therefore, there is a demand for a bathtub structure that has a low environmental impact and does not require investment.
Conventionally, as shown in FIG. 9, there is known a portable bath in which a bathtub having a rectangular shape in a side view constituted by a waterproof cloth 11 is incorporated in an outer frame 10 and a heat insulating mat 12 for preventing deformation of the bathtub is incorporated. (For example, refer to Patent Document 1). However, in this type of portable bath, like a conventional resin bathtub, the bather is forced to take a posture of raising the upper body, so that the relaxation effect cannot be sufficiently obtained.
Japanese Utility Model Publication No. 5-72292

  The present invention has been invented in view of the above-described conventional problems, and provides a sheet bathtub that can provide a completely new and comfortable bathing feeling different from conventional ones, and is low in cost and less burden on the environment. This is a problem.

In order to solve the above-mentioned problems, the present invention forms a sheet bottom portion 2a of a waterproof sheet from which water does not leak in a substantially arc shape in a side view in which the center side in the long side direction M is lower than both end sides. The bathtub main body 2 which has the open deformability is comprised, The at least four corners of the upper end part 2c of the bathtub main body 2 are suspended and supported by the supporting member 3, It is characterized by the above-mentioned.
By adopting such a configuration, the bather can take a bath in a comfortable lying posture such as going into the bathtub body 2 and sleeping in a hammock, so compared with the case where the bather is bathed in a posture where the upper body is raised like before. Thus, a completely new and comfortable bathing feeling can be obtained, and the seat bottom portion 2a is formed in a substantially arc shape, so that the load of the bather and the hot water is set as a uniform tension with respect to the seat bottom portion 2a. Since it is transmitted, local stress is not generated, and bathing can be performed with a mechanically stable posture. Furthermore, unlike conventional resin bathtubs, materials that can be reused at the time of disposal can be selected, and the mold investment is not required.
Further, it is preferable to provide a core member 4 for holding the sheet bottom portion 2a in a substantially arc shape in a side view. In this case, the core member 4 stabilizes the substantially arc shape in the side view of the sheet bottom portion 2a. In addition, the strength of the bathtub body 2 made of a waterproof sheet can be sufficiently secured.
Moreover, it is preferable to make the sheet | seat surface of the said sheet | seat bottom part 2a into uneven | corrugated shape, In this case, since the contact area of a sheet | seat surface and a bather's skin can be reduced, the comfortable touch which does not stick to skin is given. In addition, since the bather's body is less likely to slip with respect to the seat surface due to the uneven shape, the bather can easily maintain a stable posture even if the seat surface is curved in a substantially arc shape.

  The bath tub according to the present invention has a bath bottom that is suspended by a support member by supporting at least four corners of the bathtub body with a seat bottom portion having a substantially arc shape when viewed from the side. Entering and bathing in a recumbent posture along the substantially arc-shaped seat bottom, a completely new comfortable bathing feeling can be obtained, and materials that can be reused at the time of disposal can be selected compared to resin bathtubs and gold Since no mold investment is required, the cost to the environment can be reduced at a low cost.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

As shown in FIG. 2, the sheet bathtub 1 according to the present invention forms a sheet bottom portion 2 a of a waterproof sheet from which water does not leak in a substantially arc shape in a side view in which the center side in the long side direction M is lower than both end sides. Thus, the bathtub main body 2 having a deformability opened upward is configured, and at least four corners of the upper end portion 2c of the bathtub main body 2 are suspended and supported by the support member 3.
The bathtub body 2 is composed of a sheet bottom portion 2a and a pair of sheet side surface portions 2b and 2b that are substantially arcuate in side view along the long side direction M. The upper end opening 2c of the bathtub body 2 is formed in a rectangular shape in plan view with a pair of end sides 2d facing the long side direction M and a pair of side sides 2e facing the short side direction N.
The waterproof sheet constituting the bathtub body 2 is made of a synthetic fiber having waterproofness, strength, durability, and elasticity, and preferably a synthetic fiber having a pleasant touch that does not stick to the skin. Of course, it is not limited to synthetic fibers, and may be a cloth that does not leak water.

The bathtub body 2 is suspended in a hammock shape by the support member 3. FIG. 2 is an example of a stud 3 </ b> A provided with a four-point support portion 22 that suspends and supports only four corners of the upper end portion 2 c of the bathtub body 2 using a fixing means (not shown) such as a clasp. This position is indicated by an arrow a in FIG. FIG. 3A is another example of the stud 3B provided with the two-side support portion 20 that suspends and supports two sides in the long-side direction M of the bathtub body 2, and the supported position is shown in FIG. 4B. Shown by arrows a and b. FIG.3 (b) is another example of the stud 3C provided with the 4 side support parts 20 and 21 which suspend and support 4 sides of the upper end part 2c of the bathtub main body 2, and the position supported is FIG.4 (c). Indicated by arrows a, b, and c. Each of these studs 3A, 3B, 3C has a structure independent of the bathtub body 2.
Thus, by supporting all or a part of the upper end 2c of the bathtub body 2 having the deformability by the stud 3A (or 3B or 3C), the seat bottom portion 2a is fixed only by being suspended. This prevents the bather from receiving a large reaction force from the seat bottom portion 2a. Therefore, as shown in FIG. 1, since the bather can take a bath in a comfortable posture such as entering the bathtub body 2 and sleeping in a hammock, the bather takes a bath with the upper body standing like a conventional resin bathtub. In comparison, a completely new comfortable bathing feeling can be obtained. Moreover, since the seat bottom portion 2a of the bathtub body 2 having deformability is curved in a substantially arc shape, the seat bottom portion 2a fits on the body of the bather, and a floating feeling like a water bed can be obtained. In addition, since the load of the bather and hot water is transmitted to the seat bottom portion 2a as a uniform tension by the substantially arc-shaped seat bottom portion 2a, no local stress is generated and the mechanical stability is stable. Bathing can be performed in a lying position, resulting in a very pleasant feel and an increased relaxation effect.
Further, since the waterproof sheet is mainly used, unlike a conventional resin bathtub, a material that can be reused at the time of disposal can be selected, and the mold investment is not required. Therefore, the load on the environment can be reduced at a low cost. Further, the stud 3A (or 3B or 3C) for hanging and supporting the waterproof sheet has a structure independent of the bathtub body 2, so that the bathtub body 2 can be easily repaired and replaced, and the conventional resin bathtub is used. It is lighter in weight and easier to carry in, install and replace. When not in use, the bathtub body 2 can be stored compactly by separating the bathtub body 2 from the stud 3A (or 3B or 3C) and the bathtub body 2 can be folded. There is an advantage that it can be used effectively for leisure and personal use, such as being able to enjoy a bath casually.

5 and 6 show an embodiment in which a core material 4 is added to the bathtub body 2. The core material 4 is used to increase the strength of the bathtub body 2 and to maintain a substantially arc shape in the side view of the seat bottom portion 2a of the bathtub body 2, and is composed of a metal having strength, durability, and elasticity. The In addition, the metal which comprises the core material 4 may have elasticity not only in what has rigidity. For example, a tensioned metal wire can be used as the elastic core material 4. Here, FIG. 5 shows a case where the rod-shaped core member 4 is provided only on the side portion 2 e of the bathtub body 2. FIG. 6 shows an example in which the core material 4 is arranged on the sheet bottom portion 2a of the bathtub body 2, and FIG. 6 (a) shows an example in which the core material 4 is knitted in an oblique mesh shape of the sheet bottom portion 2a. FIG. 6B shows a case where a substantially bow-shaped core material 4 is knitted along the long side direction M of the sheet bottom portion 2a. As described above, by providing the core member 4 on the side part 2e of the sheet bathtub 1 or on the sheet bottom part 2a, the shape of the sheet bottom part 2a can be stabilized and the strength can be secured. It becomes like this. Further, if the elastic core material 4 is used, the elasticity and stretchability of the seat bottom portion 2a can be sufficiently secured, and at the same time, the seat bottom portion 2a can be elastically deformed against the load of the bather and hot water. There is an advantage that the feeling of bathing can be changed.
In addition, the core material 4 is not necessarily required, for example, you may make it stabilize the shape of the bathtub main body 2 using the direction characteristic of the expansion-contraction of a waterproof sheet. For example, as shown in FIG. 7 (a), there is no elasticity in the short side direction N, and only the long side direction M is provided with elasticity so that the shape of the bathtub body 2 is stabilized and the sheet bottom portion 2a is elastic. It is possible to give sex. Moreover, you may make it ensure intensity | strength and shape with the bathtub main body 2 itself which consists of a strong waterproof sheet like FIG.7 (b).
FIG. 8 shows an example in which the sheet surface of the sheet bottom portion 2a of the bathtub body 2 has an uneven shape. As a method for making the sheet surface uneven, even if warp yarns 6 and weft yarns 7 are knitted into a vertical and horizontal lattice shape as shown in FIG. 8A, the uneven surface shape can be formed on the sheet surface as shown in FIG. 8B. Good. In FIG. 8B, d1 is 3 mm, for example, and d2 is 10 mm, for example. This uneven shape can reduce the contact area between the seat surface and the bather's skin, so that it can provide a comfortable feel that does not stick to the skin, and the bather's body is less likely to slip on the seat surface. Therefore, even if the sheet surface is curved in a substantially arc shape, the bather can maintain a more stable posture.

It is a perspective view explaining the use condition of the bathtub made from a sheet | seat used for one Embodiment of this invention. (A) is a disassembled perspective view of the same sheet bathtub, (b) is a perspective view of an assembled state. (A) is a perspective view of a 2 side support stud same as the above, (b) is a perspective view of a 4 side support stud same as the above. (A) is explanatory drawing of the hanging position by the 4-point support stud of FIG. 2, (b) is explanatory drawing of the hanging position by the two-sided support stud of FIG. 3 (a), (c) is FIG. 3 (c). It is explanatory drawing of the hanging position by four side support studs. It is other embodiment of this invention, (a) is a perspective view at the time of providing a core material only in the side part of a bathtub main body, (b) is the sectional view on the AA line of (a). It is further another embodiment of this invention, (a) is a perspective view at the time of providing a knitted core material only in the sheet | seat bottom part of the bathtub main body, (b) is substantially bow only in the sheet | seat bottom part of the bathtub main body. The perspective view at the time of knitting a mold-shaped core material, (c) is a BB line sectional view of (b). It is other embodiment which is not provided with a core material same as the above, (a) is a perspective view at the time of giving stretchability only to a long side direction, without the elasticity of the extension direction of a bathtub main body in a short side direction, ( (b) is a perspective view in the case of ensuring the strength and shape of a bathtub main body only with a waterproof sheet, (c) is CC sectional view taken on the line of (b). It is further another embodiment of this invention, (a) is a perspective view which shows the sheet | seat surface which knit warp and weft in the shape of the length and width lattice, and formed in the sheet | seat surface seen from the DD line of (a). It is a schematic diagram explaining the uneven | corrugated shape made. It is explanatory drawing of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sheet bathtub 2 Bath body 2a Sheet bottom part 2c Upper end part 3 Support member 4 Core material M Long side direction

Claims (3)

By forming the sheet bottom portion of the waterproof sheet from which water does not leak into a substantially arc shape in a side view in which the center side in the long side direction is lower than the both end sides, a bathtub body having a deformability opening upward is formed, and the bathtub A seat-made bathtub characterized in that at least four corners of the upper end portion of the main body are suspended and supported by a support member. The sheet bathtub according to claim 2, further comprising a core member for maintaining a substantially arc shape in a side view of the sheet bottom portion. The sheet bathtub according to claim 2 or 3, wherein the sheet surface of the sheet bottom portion has an uneven shape.

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