JP3988761B2 - Insulated bathtub structure - Google Patents

Description

  The present invention relates to a heat insulating bathtub structure that suppresses a decrease in hot water temperature.

Various ideas have been made to keep the temperature of the hot water in the bathtub constant. As an example, providing a heat insulating material on the outside of the side wall and bottom surface of the bathtub is performed (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 56-54852

  However, the heat insulating material disposed on the outside of the bathtub has a portion where the thickness is reduced depending on the portion of the bathtub, and high heat retention cannot be expected.

  This invention is made | formed in view of such a situation, It is made into the problem which should be solved to provide the heat insulation bathtub structure which can implement | achieve the high heat retention of bath water.

  In order to solve the above-described problems, the present invention is firstly used in a bathtub structure in which legs provided at the bottom of the bathtub are supported by raised portions provided at the upper surface of the bathtub-side floor pan. In the heat insulating bathtub structure, the first heat insulating material is provided on the outer side of the side wall of the bathtub to reach the legs of the bottom of the bathtub, and the space surrounded by the bathtub legs and the raised portion of the bathtub-side floor pan that receives the legs. A second heat insulating material is provided, and a third heat insulating material is provided in close contact with the first heat insulating material and the bathtub floor floor pan.

  In the present invention, secondly, the second heat insulating material is a vacuum heat insulating material affixed to the outside of the bottom surface of the bathtub, a foam sheet having heat insulation covering the vacuum heat insulating material from below, and a bathtub side floor It is characterized by being comprised from the heat insulation member arrange | positioned between the protruding parts of a bread | pan.

  Thirdly, the present invention is characterized in that the heat insulating member is the same quality as the third heat insulating material and is integrated with the third heat insulating material.

  Fourth, the present invention is characterized in that a fourth heat insulating material is disposed on the back surface of the bathtub-side floor pan.

  According to the 1st heat insulation bathtub structure of this invention, compared with the past, the high heat retention of a bath water is realizable.

  According to the 2nd heat insulation bathtub structure of this invention, the high heat retention of bath water is obtained reliably.

  According to the 3rd heat insulation bathtub structure of this invention, arrangement | positioning of a heat insulation member becomes easy and the heat insulation bathtub structure is implement | achieved simply.

  According to the 4th heat insulation bathtub structure of this invention, the heat retention of bath water becomes higher.

  Hereinafter, the heat insulating bathtub structure of the present invention will be described in more detail with reference to the drawings.

  FIG. 1 is a cross-sectional view showing an embodiment of a heat insulating bathtub structure of the present invention.

  This heat insulating bathtub structure is premised on a bathtub structure in which the legs 2 provided at the bottom of the bathtub 1 are supported by the raised portions 4 provided on the upper surface of the bathtub-side floor pan 3. In addition, although not shown in figure, the bathtub side floor pan 3 is connected with the washroom side floor pan.

  And in the heat insulation bathtub structure, the 1st heat insulating material 6 is arrange | positioned by the outer side of the side wall 5 of the bathtub 1 until it reaches the leg 2 provided in the bottom part of the bathtub 1. The material of the first heat insulating material 6 is not particularly limited as long as it has heat insulating properties. For example, a polystyrene foam can be adopted, and in this case, it can be attached to the outside of the side wall 5 of the bathtub 1.

  Moreover, in the heat insulation bathtub structure, the 2nd heat insulating material 7 is arrange | positioned in the space enclosed by the leg 2 of the bathtub 1, and the protruding part 4 of the bathtub side floor pan 3 which receives this leg 2. As shown in FIG. The second heat insulating material 7 has the following configuration.

  That is, the vacuum heat insulating material 8 is affixed and arrange | positioned on the outer side of the bottom face of the bathtub 1, and the foam sheet 9 which has heat insulation is provided so that this vacuum heat insulating material 8 may be covered from the lower side. A heat insulating member 10 is disposed between the raised portions 4 of the bathtub-side floor pan 3.

  The vacuum heat insulating material 8 is a material in which a core material having a porous structure such as a powder material such as silica powder or a fiber material is covered with a laminate film, and the inside is reduced in pressure and sealed. This vacuum heat insulating material 8 has high heat insulating properties. On the other hand, the material of the foam sheet 9 is not particularly limited as long as it has a heat insulating property. The same applies to the heat insulating member 10.

  In addition, the space | interval d between the foam sheet 9 and the heat insulation member 10 is so preferable that it is small from a viewpoint of heat insulation, and within 3 mm is illustrated.

  Furthermore, in the heat insulating bathtub structure, the third heat insulating material 11 is provided in close contact with the first heat insulating material 6 and the bathtub side floor pan 3 provided on the outside of the side wall 5 of the bathtub 1. There is no restriction | limiting in particular also about the material of the 3rd heat insulating material 11, The appropriate material which has heat insulation can be selected. Moreover, the 3rd heat insulating material 11 can be arrange | positioned over the area | region except the protruding part 4 of the bathtub side floor pan 3, as shown in FIG. 2, In this case, the above-mentioned heat insulating member 10 and 3rd heat insulation are possible. The material 11 can be of the same quality and integrated. Arrangement of the heat insulating member 10 becomes easy. In this case, as shown in FIG. 3, the first heat insulating material 6, the vacuum heat insulating material 8 and the foam sheet 9 are attached to the bathtub 1, so that the bathtub 1 is placed on the bathtub side floor pan 3. A heat insulating bathtub structure can be realized simply by placing.

  In addition, about the 3rd heat insulating material 11, as shown in FIG. 1, the edge can be made to protrude upwards. In this case, since the 1st heat insulating material 6 arrange | positioned on the outer side of the side wall 5 of the bathtub 1 can be wrapped from the outer side, it adheres to the 1st heat insulating material 6 fully. Of course, the edge of the third heat insulating material 11 may have a flat shape. In this case, the third heat insulating material 11 is in close contact with the first heat insulating material 6.

  Thus, in the heat insulation bathtub structure shown in FIG. 1, since the heat insulating material is fully arrange | positioned from the bathtub side floor pan 3 to the bathtub 1, compared with the past, the high heat retention of bath water is implement | achieved. .

  Actually, hot water having a temperature of 42 ° C. was put in the bathtub 1 to a depth of 400 mm, and the decrease in the hot water temperature when the ambient temperature of the bathtub 1 was set to 5 ° C. was examined. The bathtub 1 was covered with a heat-insulating bathtub lid, and the hot water temperature at a depth of 250 mm from the bottom surface of the bathtub 1 was measured. The drop in hot water temperature after 6 hours was 2.0 degrees. For comparison, when the same test was performed on the current bathtub, the decrease in hot water temperature was 5.2 degrees. The high heat insulation property of the heat insulation bathtub structure shown in FIG. 1 was demonstrated. From this, it is possible to increase the interval of additional cooking and to reduce the number of additional cooking, which is considered to be effective for cost reduction.

  In addition, in the heat insulation bathtub structure, as shown in FIG. 1, in order to implement | achieve higher heat retention, the 4th heat insulating material 12 can be provided in the back surface of the bathtub side floor pan 3. As shown in FIG. The fourth heat insulating material 12 can suppress the influence of cold air from the floor. The material of the fourth heat insulating material 12 is not particularly limited.

  Of course, the present invention is not limited to the above embodiment. Various aspects are possible about details, such as a structure and structure of a bathtub, the material of each heat insulating material, and the structure and structure of a vacuum heat insulating material.

It is sectional drawing which showed one Embodiment of the heat insulation bathtub structure of this invention. It is the top view which showed one Embodiment of arrangement | positioning of the 3rd heat insulating material to a bathtub side floor pan. It is sectional drawing which showed an example of the procedure at the time of implement | achieving the heat insulation bathtub structure of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathtub 2 Leg 3 Bathtub side floor pan 4 Raised part 5 Side wall 6 1st heat insulating material 7 2nd heat insulating material 8 Vacuum heat insulating material 9 Foam sheet 10 Heat insulating member 11 3rd heat insulating material 12 4th heat insulating material

Claims (4)

  A leg provided at the bottom of the bathtub is a heat-insulating bathtub structure used in a bathtub structure supported by a raised portion provided at the upper surface of the bathtub-side floor pan, and reaches the legs of the bathtub bottom outside the bathtub side wall The first heat insulating material is provided, and the second heat insulating material is disposed in a space surrounded by the leg of the bathtub and the raised portion of the bathtub-side floor pan that receives the leg, and the first heat insulating material and the bathtub A heat insulating bathtub structure characterized in that a third heat insulating material is provided in close contact with the side floor pan.   A 2nd heat insulating material is arrange | positioned between the vacuum heat insulating material affixed on the outer side of the bathtub bottom face, the foam sheet which has the heat insulation which covers this vacuum heat insulating material from the lower side, and the protruding part of the bathtub side floor pan. The heat-insulating bathtub structure according to claim 1, wherein the heat-insulating bathtub structure is composed of a heat insulating member.   The heat insulating bathtub structure according to claim 2, wherein the heat insulating member is the same quality as the third heat insulating material and is integrated with the third heat insulating material.   The heat insulation bathtub structure of any one of Claims 1, 2, or 3 with which the 4th heat insulating material is arrange | positioned by the back surface of the bathtub side floor pan.

Images