Bathtub sheet warmer

Abstract

To provide a bathtub sheet warmer being applicable to various types of bathtubs.SOLUTION: A bathtub sheet warmer 10 includes a first sheet 12 to a fourth sheet 15 as a plurality of sheets. The first sheet 12 to the fourth sheet 15 are floated on the water surface 102a of water 102 stored in a first bathtub 100 to cover the water surface 102a. The first sheet 12 has four corners, from a first corner 31 to a fourth corner 34, where three corners of the four corners have different curvatures. Similarly to the first sheet 12, the second sheet 13 to the fourth sheet 15 also have four corners, and three corners of the four corners have different curvatures.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a bathtub sheet warming device. [Background technology]

[0002] A known bathtub sheet warming device is a sheet for warming a bathtub that is processed to fit the bathtub and floats on the surface of the water stored in the bathtub to cover the water surface. The bathtub sheet warming device can keep the water warm and prevent it from cooling down by floating it on the surface of the water stored in the bathtub to cover it. In addition, when boiling water stored in the bathtub, the bathtub sheet warming device can also boil the water in the bathtub in a short time by floating it on the surface of the water stored in the bathtub to cover the water surface (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3033249 Summary of the Invention [Problem to be solved by the invention]

[0004] Bathtubs are available in a wide variety of sizes and shapes to suit different uses and preferences. For this reason, the bathtub warming sheet insulator may not fit the size or shape of the bathtub. In this case, it is necessary to cut the bathtub warming sheet with scissors to fit the size and shape of the bathtub. For this reason, it is difficult to apply the bathtub warming sheet to many different types of bathtubs.

[0005] An object of the present invention is to provide a bathtub warming sheet that can be easily applied to various types of bathtubs. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention proposes the following means. (1) The bathtub sheet insulation device of the present invention comprises a plurality of sheets that are floated on the surface of water stored in a bathtub and cover the water surface, the sheets having a plurality of corners, and at least one of the plurality of corners has a curvature different from the other corners.

[0007] According to the above configuration, the bathtub sheet warming device is provided with multiple sheets. Therefore, by changing the arrangement of the multiple sheets and butting each sheet together or adjusting the overlapping width of each sheet, the bathtub sheet warming device can be formed into any shape. Furthermore, the curvature of at least one corner of the multiple corners (i.e., convex corners) of the sheets is made different from the other corners. Therefore, the curvature of the corners in the bathtub sheet warming device can be matched to the corners of the bathtub (i.e., concave corners). Hereinafter, the corners of the bathtub may be referred to as "corner parts."

[0008] This allows the bathtub sheet warming device to be adapted to various sizes and shapes of bathtubs by changing the arrangement of the multiple sheets. Therefore, the bathtub sheet warming device can be floated on the surface of hot water stored in various types of bathtubs to cover the water surface. Therefore, the water in various types of bathtubs can be kept warm by the bathtub sheet warming device to prevent it from cooling down. In addition, by floating the bathtub sheet warming device on the surface of water stored in various types of bathtubs to cover the water surface, the water in the bathtub can be boiled in a short time. In other words, the bathtub sheet warming device can be applied to various types of bathtubs.

[0009] (2) In the above aspect, the number of the sheets may be four.

[0010] In various types of bathtubs, the shape of the inside where water is stored is generally rectangular or triangular. Therefore, we decided to prepare four sheets as a bathtub sheet warming device. Therefore, by changing the arrangement of the four sheets, the bathtub sheet warming device can be formed into a rectangular or triangular shape. This allows the bathtub sheet warming device to be suitably applied to various types of bathtubs.

[0011] (3) In the above aspect, the plurality of corners may be formed with three different curvatures.

[0012] According to this configuration, the corners are formed with three different curvatures. Therefore, by changing the arrangement of the sheets and butting each sheet together or by adjusting the overlapping width of each sheet, the curvature of the corners of the bathtub sheet warming device can be selected as desired. This makes the bathtub sheet warming device more suitable for use in a variety of bathtubs.

[0013] (4) In the above aspect, the sheet may have a hole for hanging on a hook.

[0014] Conventional bathtub insulation sheets are made of a single flexible sheet, and because they are soft and cannot be stood upright, they are often stored rolled up, which causes mold to grow. Therefore, the sheet has a hole, and the hole is adapted to be hung on a hook. Thus, multiple sheets can be hung on the hook. As a result, by hanging the hook on the hanging pipe, multiple sheets can be stored in a state of being hung on the hanging pipe via the hook. Therefore, water (hot water) adhering to multiple sheets can be dripped from each sheet. Furthermore, by hanging multiple sheets on the hanging pipe via the hook, gaps can be secured between the sheets. This makes it easier to dry multiple sheets, and inhibits the occurrence of mold on each sheet.

[0015] (5) In the above aspect, the holes may be located at positions where the sheets can be stacked with the same shape when the sheets are hung on the hooks.

[0016] According to this configuration, the holes of the multiple sheets are provided at positions that allow the multiple sheets to be stacked with the same shape when hung on the hook. Therefore, when the multiple sheets are hung on the hook, the sheets can be stacked with the same shape. This allows the multiple sheets to be stored in a good appearance. Effect of the Invention

[0017] According to the present invention, the bathtub sheet warming device can be easily applied to various types of bathtubs. [Brief description of the drawings]

[0018] [Figure 1] 1 is a perspective view showing a state in which a bathtub sheet warming device according to an embodiment of the present invention is used in a bathtub. [Diagram 2] FIG. 2 is a plan view showing a first sheet provided in the bathtub sheet warming device of the embodiment. [Diagram 3] FIG. 2 is a plan view showing the bathtub sheet warming device of the embodiment. [Figure 4] FIG. 2 is a rear view showing the bathtub sheet warming device of the embodiment. [Diagram 5] 1 is a perspective view showing a state in which a first sheet to a fourth sheet provided in the bathtub warming sheet insulator of the embodiment are suspended from a suspension pipe. FIG. [Figure 6] FIG. 11 is a plan view illustrating an example in which the bathtub warming sheet device of the embodiment is applied to a second bathtub. [Figure 7] FIG. 11 is a plan view illustrating an example in which the bathtub warming sheet device of the embodiment is applied to a third bathtub. [Figure 8] FIG. 13 is a plan view illustrating an example in which the bathtub warming sheet device of the embodiment is applied to a fourth bathtub. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, a bathtub sheet warming device according to one embodiment of the present invention will be described with reference to the drawings.

[0020] FIG. 1 is a perspective view showing a state in which a bathtub warming sheet device according to an embodiment is used in a bathtub. As shown in FIG. 1, the bathtub sheet warming device 10 is used, for example, by floating it on the water surface 102a in a first bathtub (bathtub) 100. The first bathtub 100 is formed in a roughly rectangular shape in a plan view. The first bathtub 100 has four corners (i.e., concave corners) 104. Hereinafter, the corners 104 of the bathtub may be referred to as "corner portions 104."

[0021] The bathtub sheet warming device 10 includes, for example, a plurality of sheets 12, 13, 14, and 15. In the embodiment, four sheets 12, 13, 14, and 15 are described as an example. Hereinafter, the four sheets 12, 13, 14, and 15 are described as a first sheet 12, a second sheet 13, a third sheet 14, and a fourth sheet 15. The first sheet 12 to the fourth sheet 15 are floated on the water surface 102a of the water 102 stored in the first bathtub 100. The first sheet 12 to the fourth sheet 15 are arranged so as to cover the entire water surface 102a in the first bathtub 100. In the embodiment, four sheets 12, 13, 14, and 15 are used as the plurality of sheets, but the number of the plurality of sheets can be selected arbitrarily.

[0022] FIG. 2 is a plan view showing a first sheet provided in the sheet insulator for a bathtub according to the embodiment. As shown in Fig. 2, the first sheet 12 is formed in a generally rectangular shape in a plan view. The first sheet 12 includes, for example, a foamed layer (sponge layer) 21 and an aluminum layer 22. The foamed layer 21 is a flexible sheet made of foamed polyethylene, polypropylene, or the like. The foamed layer 21 has the property of floating on the water surface due to its buoyancy relative to water. The aluminum layer 22 is formed, for example, by bonding aluminum foil to the foamed layer 21 or by depositing aluminum on the foamed layer 21. The aluminum layer 22 has a heat insulating property. That is, the first sheet 12 is flexible and has a heat insulating property, and is formed so as to float on the water surface (hot water surface) due to its buoyancy relative to water (hot water). In the embodiment, the first sheet 12 is described as being formed by laminating the foam layer 21 and the aluminum layer 22, but the first sheet 12 is not limited to this.

[0023] Moreover, the first sheet 12 is formed into a generally rectangular shape by a first side 24, a second side 25, a third side 26, and a fourth side 27. The first sheet 12 has a plurality of corners (convex edges) 31, 32, 33, and 34, and a first hole (hole) 35. Hereinafter, the plurality of corners 31, 32, 33, and 34 will be described as a first corner 31, a second corner 32, a third corner 33, and a fourth corner 34. The first corner 31 is formed, for example, in an arc-shaped curve with a curvature of radius R1 (1 / R1). The dimension of the radius R1 of the first corner 31 is set, for example, to R1 = 200 mm ± 10 mm. The second corner 32 is formed, for example, in an arc-shaped curve with a curvature of radius R2 (1 / R2). The dimension of the radius R2 of the second corner 32 is set, for example, to R2 = 20 mm ± 2 mm. The third corner 33 is formed, for example, in an arc-shaped curve with a curvature of radius R3 (1 / R3). The dimension of the radius R3 of the third corner 33 is set, for example, to R3 = 50 mm ± 5 mm. The fourth corner 34 is formed, for example, in an arc-shaped curve with a curvature of radius R2 (1 / R2). The dimension of the radius R2 of the fourth corner 34 is set, for example, to R2 = 20 mm ± 2 mm. It should be noted that the dimensions of the first corner 31, the second corner 32, the third corner 33, and the fourth corner 34 are not limited to those mentioned above.

[0024] The curvature (1 / R1) of the first corner 31 is smaller than the curvature (1 / R3) of the third corner 33. That is, the first corner 31 is curved to a greater extent than the third corner 33. The curvature (1 / R3) of the third corner 33 is smaller than the curvatures (1 / R2) of the second corner 32 and the fourth corner 34. The second corner 32 and the fourth corner 34 are curved to the same curvature (1 / R2). That is, the third corner 33 is formed to be curved larger than the second corner 32 and the fourth corner 34. In this manner, the first corner 31 to the fourth corner 34 are formed with three different curvatures (1 / R1, 1 / R2, 1 / R3).

[0025] In the embodiment, the multiple corners are described by taking four corners, namely, the first corner 31, the second corner 32, the third corner 33, and the fourth corner 34, as an example, but the multiple corners are not limited to four. In the embodiment, an example in which the four corners from the first corner 31 to the fourth corner 34 are formed with three different curvatures will be described, but the present invention is not limited to this. As another example, at least one corner from the first corner 31 to the fourth corner 34 may be formed with a curvature different from that of the other corners. For example, only the first corner 31 may be formed with a curvature different from that of the other corners from the second corner 32 to the fourth corner 34. Alternatively, the four corners from the first corner 31 to the fourth corner 34 may be formed with four different curvatures.

[0026] A first hole 35 is provided in the vicinity of the third corner 33. The first hole 35 penetrates from the front surface to the back surface in the vicinity of the third corner 33. The first hole 35 is a hole for hanging on a hook 61 (described later). The first hole 35 is hung on the hook 61, and the hook 61 is hung on a hanging pipe 62 (described later). This allows the first sheet 12 to be hung on the hanging pipe 62.

[0027] Fig. 3 is a plan view showing the bathtub sheet warming device of the embodiment, and Fig. 4 is a back view showing the bathtub sheet warming device of the embodiment. As shown in Fig. 3 and Fig. 4, the bathtub sheet insulation device 10 has a first sheet 12 to a fourth sheet 15 arranged with their sides abutting each other. The second sheet 13 is formed line-symmetrically with respect to the second side 25 of the first sheet 12. The second sheet 13 includes a foam layer 41 and an aluminum layer 42, similar to the first sheet 12. The second sheet 13 also includes a second hole portion (hole portion) 36.

[0028] The third sheet 14 is formed point-symmetrically with respect to the first sheet 12 with respect to the center O of the bathtub sheet warming device 10. The third sheet 14 includes a foam layer 43 and an aluminum layer 44, similar to the first sheet 12. The third sheet 14 also includes a third hole portion (hole portion) 37. The fourth sheet 15 is formed line-symmetrically with respect to the third side 26 of the first sheet 12. The fourth sheet 15 includes a foam layer 45 and an aluminum layer 46, similar to the first sheet 12. The fourth sheet 15 also includes a fourth hole portion (hole portion) 38. In the embodiment, an example in which the first sheet 12 to the fourth sheet 15 are formed into a generally rectangular shape will be described, but the shapes of the multiple sheets can be selected arbitrarily.

[0029] As shown in Figs. 1, 3, and 4, the bathtub sheet warming device 10 is floated on the water surface 102a of the first bathtub 100 with the sides of the first sheet 12 to the fourth sheet 15 in contact with each other. The bathtub sheet warming device 10 is formed in a generally rectangular shape with a length L1 and a width W1. The bathtub sheet warming device 10 is formed in a generally rectangular shape with four outer sides and four corners. The four corners are formed by the first corners 31, 51, 52, and 53 of the first sheet 12 to the fourth sheet 15. The aluminum layers 22, 42, 44, and 46 of the first sheet 12 to the fourth sheet 15 are arranged facing the water surface 102a and in contact with the water surface 102a. The first corners 51, 52, and 53 are part of the multiple corners.

[0030] The bathtub sheet warming device 10 is arranged so that its four outer sides come into contact with the four inner sides of the first bathtub 100. Furthermore, the bathtub sheet warming device 10 is arranged so that the four corners of the first corners 31, 51, 52, and 53 come into contact with the four corners 104 of the first bathtub 100. Thus, the bathtub sheet warming device 10 is arranged in the first bathtub 100 with the first sheet 12 to the fourth sheet 15 in contact with each other so as to cover the entire water surface 102a.

[0031] FIG. 5 is a perspective view showing a state in which the first to fourth sheets provided in the sheet warming device for a bathtub according to the embodiment are suspended from a suspension pipe. As shown in Figures 1 and 5, when storing the bathtub sheet warming device 10, the first sheet 12 to the fourth sheet 15 are lifted above the water surface 102a of the first bathtub 100. The first hole portion 35 to the fourth hole portion 38 of the first sheet 12 to the fourth sheet 15 lifted above the water surface 102a are hung on the hook 61. The hook 61 on which the first sheet 12 to the fourth sheet 15 are hung is then hung on the hanging pipe 62. Thus, the first sheet 12 to the fourth sheet 15 are hung from the hanging pipe 62 via the hook 61.

[0032] Here, the first sheet 12 is hung on the hook 61 with the aluminum layer 22 facing the front side of the paper, for example. The second sheet 13 is hung on the hook 61 with the foam layer 41 facing the front side of the paper in a state in which it is inverted with respect to the first sheet 12. The second sheet 13 is formed line-symmetrically with respect to the first sheet 12. Therefore, the second sheet 13 is overlapped to match the shape of the first sheet 12.

[0033] The third sheet 14 is hung on the hook 61 with the aluminum layer 44 facing the front side of the page in a state rotated 180 degrees with respect to the first sheet 12. The third sheet 14 is formed point-symmetrically with respect to the first sheet 12. Therefore, the third sheet 14 is overlapped so as to match the shape of the first sheet 12. The fourth sheet 15 is hung on the hook 61 with the foam layer 45 facing the front side of the paper in a state in which it is inverted with respect to the first sheet 12. The fourth sheet 15 is formed line-symmetrically with respect to the first sheet 12. Therefore, the fourth sheet 15 is overlapped so as to match the shape of the first sheet 12.

[0034] As a result, the first sheet 12 to the fourth sheet 15 are stacked with their respective shapes aligned when hung on the hooks 61. In other words, the first hole portion 35 to the fourth hole portion 38 are provided at positions where the first sheet 12 to the fourth sheet 15 can be stacked with their respective shapes aligned when hung on the hooks 61.

[0035] Next, an example in which the bathtub warming sheet 10 is applied to various types of bathtubs, namely, the second bathtub 110 to the fourth bathtub 130, will be described with reference to Figs. (Example of application to the second bathtub) FIG. 6 is a plan view illustrating an example in which the bathtub warming sheet device of the embodiment is applied to a second bathtub. As shown in Figure 6, the second bathtub (bathroom) 110 is, for example, smaller in length and width than the first bathtub 100. The second bathtub 110 has four corners 112, just like the first bathtub 100. The four corners 112 of the second bathtub 110 are formed to be the same size as the four corners 104 of the first bathtub 100 (see Figure 1).

[0036] Bathtub sheet warming device 10 is floated on the water surface of second bathtub 110 with each side of first sheet 12 to fourth sheet 15 overlapped. Hereinafter, bathtub sheet warming device 10 that floats on the water surface of second bathtub 110 will be described as "bathtub sheet warming device 10A." The bathtub sheet warming device 10A is generally rectangular and has a length L2 and a width W2. The length L2 and width W2 of the bathtub sheet warming device 10A are smaller than the length L1 and width W1 (see FIG. 3) of the bathtub sheet warming device 10. The bathtub sheet warming device 10A has four corners formed by the first corners 31, 51, 52, and 53 of the first sheet 12 to the fourth sheet 15. The first sheet 12 to the fourth sheet 15 are arranged such that the aluminum layers 22, 42, 44, and 46 (see FIG. 4) face the water surface and come into contact with the water surface.

[0037] The bathtub sheet warming device 10A is arranged so that its four outer sides come into contact with the four inner sides of the second bathtub 110. The bathtub sheet warming device 10A is also arranged so that its four first corners 31, 51, 52, 53 come into contact with the four corners 112 of the second bathtub 110. Thus, the bathtub sheet warming device 10A is arranged in the second bathtub 110 with the first sheet 12 to the fourth sheet 15 overlapping each other to cover the entire water surface.

[0038] (Example of application to the third bathtub) FIG. 7 is a plan view illustrating an example in which the bathtub warming sheet device of the embodiment is applied to a third bathtub. As shown in Fig. 7, the third bathtub (bathroom) 120 is formed in a roughly rectangular shape in a plan view. The third bathtub 120 has four corners 122. The four corners 122 of the third bathtub 120 are smaller than the four corners 104 of the first bathtub 100 (see Fig. 1) and the four corners 112 of the second bathtub 110 (see Fig. 1).

[0039] The bathtub sheet warming device 10 is floated on the water surface 102a of the third bathtub 120 with each side of the first sheet 12 to the fourth sheet 15 overlapped. Hereinafter, the bathtub sheet warming device 10 floating on the water surface of the third bathtub 120 will be described as "bathtub sheet warming device 10B." The bathtub sheet warming device 10B is generally rectangular and has a length L3 and a width W3. The bathtub sheet warming device 10B has four corners formed by the third corners 33, 55, 56, and 57 of the first sheet 12 to the fourth sheet 15. The third corners 55, 56, and 57 are part of the multiple corners. The first sheet 12 to the fourth sheet 15 are arranged such that the aluminum layers 22, 42, 44, and 46 (see FIG. 4) face the water surface and come into contact with the water surface.

[0040] The bathtub sheet warming device 10B is arranged so that its four outer sides come into contact with the four inner sides of the third bathtub 120. The bathtub sheet warming device 10B is also arranged so that its four third corners 33, 55, 56, 57 come into contact with the four corners 122 of the third bathtub 120. Thus, the bathtub sheet warming device 10B is arranged in the third bathtub 120 with the first sheet 12 to the fourth sheet 15 overlapping each other to cover the entire water surface.

[0041] (Example of application to the 4th bathtub) FIG. 8 is a plan view illustrating an example in which the bathtub warming sheet device of the embodiment is applied to the fourth bathtub. 8, the fourth bathtub (bathroom) 130 is formed in a roughly triangular shape in a plan view. The fourth bathtub 130 has three corners 132, 133, and 134. In the following description, the three corners 132, 133, and 134 are referred to as a first corner 132, a second corner 133, and a third corner 134.

[0042] The bathtub sheet warming device 10 is floated on the water surface of the fourth bathtub 130 with each side of the first sheet 12 to the fourth sheet 15 overlapped. Hereinafter, the bathtub sheet warming device 10 that floats on the water surface of the fourth bathtub 130 will be described as "bathtub sheet warming device 10C." The bathtub sheet warming device 10C is formed in a roughly triangular shape. The bathtub sheet warming device 10C forms two corners at the third corners 33, 57 of the first sheet 12 and the fourth sheet 15. The bathtub sheet warming device 10C also forms one corner by overlapping the first corners 51, 52 of the second sheet 13 and the third sheet 14. The first sheet 12 to the fourth sheet 15 are arranged such that the aluminum layers 22, 42, 44, 46 (see FIG. 4) face the water surface and come into contact with the water surface.

[0043] The bathtub sheet warming device 10C is arranged so that its four outer sides come into contact with the four inner sides of the fourth bathtub 130. The bathtub sheet warming device 10C is also arranged so that the two corners formed by the third corners 33, 57 come into contact with the first corner 132 and the third corner 134 of the fourth bathtub 130. Furthermore, the bathtub sheet warming device 10C is arranged so that one corner formed by overlapping the first corners 51, 52 comes into contact with the second corner 133 of the fourth bathtub 130. Thus, the bathtub sheet warming device 10C is arranged in the fourth bathtub 130 with the first sheet 12 to the fourth sheet 15 overlapping each other to cover the entire water surface.

[0044] In the embodiment, an example in which the bathtub sheet warming device 10 is applied to the first bathtub 100 to the fourth bathtub 130 has been described, but this is not limiting. As another example, the bathtub sheet warming device 10 can be applied to other bathtubs by arranging the first sheet 12 to the fourth sheet 15 of the bathtub sheet warming device 10 in accordance with the other bathtubs.

[0045] As described above, the bathtub sheet warming device 10 of the embodiment provides the following actions and effects. Below, the bathtub sheet warming devices 10, 10A, 10B, and 10C will be collectively described as "bathtub sheet warming device 10." As shown in Figures 3, 6, 7, and 8, the sheet insulator for bathtub 10 comprises a first sheet 12, a second sheet 13, a third sheet 14, and a fourth sheet 15. Therefore, by changing the arrangement of the first sheet 12 to the fourth sheet 15 and butting the sheets together, or by adjusting the overlapping width of the sheets, the sheet insulator for bathtub 10 can be formed into any shape.

[0046] Furthermore, in the first sheet 12, the curvature (1 / R1) of the first corner 31 is made different from the curvature (1 / R3) of the third corner 33. Also, the curvatures (1 / R2) of the second corner 32 and the fourth corner 34 are made different from the curvature (1 / R1) of the first corner 31 and the curvature (1 / R3) of the third corner 33. That is, the first corner 31 to the fourth corner 34 provided in the first sheet 12 are formed with three different curvatures. Similarly, the corners of the second sheet 13 to the fourth sheet 15 were formed with three different curvatures, similar to the first sheet 12. Therefore, in the bathtub sheet warming device 10, the curvature of each corner can be adjusted to match each corner of the first bathtub 100 to the fourth bathtub 130.

[0047] This allows the bathtub warming sheet 10 to be adapted to the size and shape of various types of bathtubs, such as the first bathtub 100 to the fourth bathtub 130, by changing the arrangement of the first sheet 12 to the fourth sheet 15. Therefore, the bathtub warming sheet 10 can be floated on the surface of hot water stored in various types of bathtubs to cover the water surface. Therefore, the hot water stored in the first bathtub 100 to the fourth bathtub 130 can be kept warm by the bathtub sheet warming device 10, making it difficult for the water to cool down. Also, by floating the bathtub sheet warming device 10 on the surface of the water stored in the first bathtub 100 to the fourth bathtub 130 and covering the water surface, the water in each bathtub can be boiled in a short time. In other words, the bathtub sheet warming device 10 can be applied to various types of bathtubs, such as the first bathtub 100 to the fourth bathtub 130.

[0048] Here, in various types of bathtubs such as the first bathtub 100 to the fourth bathtub 130, the shape of the inside where water is stored is generally formed into a rectangle or a triangle. Therefore, it was decided to prepare four sheets, the first sheet 12 to the fourth sheet 15, as the bathtub sheet insulator 10. Therefore, by changing the arrangement of the four sheets, the first sheet 12 to the fourth sheet 15, the bathtub sheet insulator 10 can be formed into a rectangle or a triangle. This allows the bathtub sheet insulator 10 to be suitably applied to various types of bathtubs such as the first bathtub 100 to the fourth bathtub 130.

[0049] In addition, the corners of the first sheet 12 to the fourth sheet 15 are formed with three different curvatures. Therefore, by changing the arrangement of the first sheet 12 to the fourth sheet 15 and butting the sheets together, or by adjusting the overlapping width of the sheets, the curvature of the corners of the bathtub sheet warming device 10 can be selected as desired. This allows the bathtub sheet warming device 10 to be more suitably applied to various types of bathtubs, such as the first bathtub 100 to the fourth bathtub 130.

[0050] Conventional bathtub insulation sheets are made of a single flexible sheet, and because they are soft and cannot be stood upright, they are often stored rolled up, which causes mold to grow.

[0051] 1 and 5, the first sheet 12 to the fourth sheet 15 have a first hole portion 35 to a fourth hole portion 38, and the first hole portion 35 to the fourth hole portion 38 are hung on the hook 61. Thus, the first sheet 12 to the fourth sheet 15 can be hung on the hook 61. As a result, by hanging the hook 61 on the hanging pipe 62, the first sheet 12 to the fourth sheet 15 can be stored in a state where they are hung from the hanging pipe 62 via the hook 61.

[0052] Therefore, water (hot water) adhering to the first sheet 12 to the fourth sheet 15 can be dripped from each sheet. Furthermore, by hanging the first sheet 12 to the fourth sheet 15 from the hanging pipe 62 via the hook 61, a gap can be secured between the first sheet 12 to the fourth sheet 15. This makes it easier to dry the first sheet 12 to the fourth sheet 15, and inhibits the occurrence of mold on the first sheet 12 to the fourth sheet 15.

[0053] Furthermore, the first hole 35 to the fourth hole 38 are provided at positions that allow the first sheet 12 to the fourth sheet 15 to be stacked with the same shape when hung on the hook 61. Therefore, when the first sheet 12 to the fourth sheet 15 are hung on the hook 61, the sheets can be stacked with the same shape. This allows the first sheet 12 to the fourth sheet 15 to be stored with a good appearance.

[0054] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0055] In addition, within the scope of the invention, the components in the above-described embodiments may be replaced with well-known components, and the above-described modified examples may be combined as appropriate. [Explanation of symbols]

[0056] 10, 10A, 10B, 10C Bathtub sheet insulation device 12~15 1st to 4th sheets (multiple sheets) 31-34 1st corner to 4th corner (multiple corners) 35~38 hole 51, 52, 53 First corner (part of multiple corners) 55, 56, 57 Third corner (part of multiple corners) 61 Hook 100,110,120,130 Bathtub 1 to Bathtub 4 (Bathtub) 102 Water 102a water surface

Claims

1. A plurality of sheets are provided which are floated on the surface of water stored in a bathtub and cover the surface of the water; The sheet has a plurality of corners; The curvature of at least one of the plurality of corners is different from that of the other corners. A sheet insulation device for a bathtub.

2. The sheets are four.

2. The bathtub sheet warming device according to claim 1.

3. The corners are formed with three different curvatures.

3. The bathtub sheet warming device according to claim 1 or 2.

4. The sheet is It has a hole for hooking, 3. The bathtub sheet warming device according to claim 1 or 2.

5. The hole portion is The plurality of sheets are arranged in a position where they can be stacked with the same shape when hung on the hooks.

5. The bathtub sheet warming device according to claim 4.

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