JPS6034029B2 - Bathtub warming device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bathtub heat retention device for preventing hot water in a bathtub from cooling down, and more specifically, a hot air flow path 2 is formed around the outer circumference of a bathtub 1 through which hot air flows. Hot air flow path 2 bathtub 1
This relates to a heat insulating device for a bathtub, characterized in that the outer periphery of the opposite side is surrounded by a heat insulating material 18, and a hot air outlet 21 is provided for discharging hot air from the hot air channel 2 into the bathroom 20. be.

Conventional bathtubs that cannot be reheated have the problem that the temperature inside the bathtub decreases over time, making it impossible to take a comfortable bath when taking a bath later. This invention was invented in view of the above-mentioned conventional drawbacks, and its purpose is to prevent the hot water in the bathtub from cooling down, and to reduce the risk of electric shock compared to keeping warm with an electric heater. To provide a bathtub warming device that allows safe bathing.

The present invention will be explained in detail below with reference to Examples.

FIG. 1 shows an embodiment of the invention. In this embodiment, a support frame 5 is formed outside the wall 3 of the bathtub 1 using a frame material 4 such as an angle material, and a heat-resistant and water-resistant plate material 6 is stretched over the support frame 5. The outer periphery of the bathtub 1 is surrounded by a plate material 6 with a gap 7 serving as a hot air flow path 2 interposed therebetween. In this case, if an apron is provided on one or two sides of the outer periphery of the bathtub 1, the gap 7 between the apron and the wall 3 of the bathtub 1 also serves as the hot air flow path 2. Note that in the above embodiment, the support frame 5 is fixed to the bathtub 1 with adhesive or the like, and the plate material 6
is fixed to the support frame 5 with screws or the like, but it goes without saying that it may be fixed by other fixing means than the above. Hot air flow path 2
is provided with a hot air inlet 9 and a hot air outlet 10, and the hot air generator 11 and the inlet 9 are communicated by an inlet side passage 12 such as a flexible hose, and the hot air generated by the hot air generator 11 is transferred to the hot air stream. The bathtub 1 is heated by flowing through a passage 2, and is discharged from a discharge side passage 13 connected to an outlet 10. Here, the hot air generator 11 used in the embodiments described below including the above embodiments may be of a type that directly heats air using a heat source such as electricity, oil, gas, solar heat, etc. Various types of hot air generators can be considered, such as a water heater type hot air generator that heats water using a heat source such as oil, gas, solar heat, etc., and heats the air using the heat of this hot water, but it is not limited to any particular one. In short, any device that generates hot air will suffice. Second
Other embodiments of the present invention are shown in FIGS. In this embodiment, a corrugated plate 14 is attached to the outer periphery of the bathtub 1, and a large number of spaces 15 formed by the corrugated plate 14 and the wall portion 3 of the bathtub 1 serve as hot air channels 2. In this embodiment, a lotus passage chamber 16 is provided in a part of the outer periphery of the bathtub 1, and one end of each cavity 14 that becomes the hot air passage 2 is closed on one side of the lotus passage chamber 16, and the lotus passage chamber 16 is closed at one end. The pond end of each cavity 14 is closed on the other side of the passage room 16. Further, the lotus passage chamber 16 is provided with an inlet 9 and an outlet 10. A partition 17 is provided in the lotus passage chamber 16 so that the hot air from the entrance 9 flows only to one end of the space 14.
The hot air from each cavity 14 may be made to flow only through one outlet. A heat insulating material 18 such as glass wool is wrapped around the outer periphery of the corrugated plate 14 to prevent the heat of the hot air in the hot air channel 2 from escaping to the outside other than through heat exchange with the bathtub 1. Here, the wavy plate 14 is not limited to the one shown in FIG. 2, but may also have a wavy shape as shown in FIG. 3, FIG. 4, or other shapes. Furthermore, although the corrugated plate 14 is made of stainless steel, FRP, etc., it is not necessarily limited thereto, and may of course be made of other materials. Other embodiments of the invention are shown in FIGS. 5-6. In this embodiment, a flexible cylindrical body 19 is wrapped around the outer circumference of the bathtub 1.
is designated as the hot air flow path 2. Further, the outside of the cylindrical body 19 is surrounded by a heat insulating material 18 such as glass wool. Cylindrical body 1
As the material 9, a flexible aluminum tube or the like is used, but other metals or synthetic resins may also be used. There are two methods for wrapping the tubular body 19 around the outer circumference of the bathtub 1: a spiral method as shown in FIG. 5, and a series method as shown in FIG. In the case of a spiral type, one or more cylindrical bodies 19 are spirally wound around the bathtub 1, one end of the cylindrical body 19 is led out to form an inlet passage 12, and this is connected to the hot air generator 11. It may be connected and the other end may be led out to form the discharge side passage 13. In the case of a series type, a plurality of cylindrical bodies 19 are wound in series around the outer circumference of the bathtub 1, one end of each cylindrical body 19 is passed through the lotus passage chamber 16, and each cylindrical body 1 is
The other end of 9 is made to pass through the transportation chamber 16. The lotus passage chamber 16 is provided with an inlet 9 and an outlet 10. In this embodiment, a partition 17 is also provided in the passageway room 16 so that the entrance 9
The hot air flows only to one end of each cylindrical body 19, and each cylindrical body 1
The hot air from 9 may flow only to the outlet 10. By the way, in any of the embodiments described above, the discharge side passage 13 is connected to the warm air outlet 21 that closes the bathroom 201 to discharge warm air into the bathroom 20 to locally heat the bathroom 20. be. In this case, the warm air outlet 21 is provided below, preferably at the bottom, from the vertical center of the washing area 22, and is located at a position where warm air is blown when the user is washing his or her body while sitting in the washing area 22. I'll keep it. Here, hot air outlet 2
1 on the inspection cover 23 of the bathroom 20, the pipes can be inspected by removing the inspection cover 23. Of course, the discharge side passage 13 may be led to another room and used for heating the other room. Note that in the present invention, the hot air flow path 2
It is appropriate that the temperature of the hot air flowing through is 490 or higher, but a device may be provided to adjust the temperature of the hot air depending on the purpose of use. In the present invention, as described above, a hot air flow path is formed around the outer periphery of the bathtub, so that the hot water in the bathtub can be prevented from cooling down due to hot air and can be kept at a high temperature for a long time. This allows for a comfortable bathing experience, and is safer than those that use electric heaters to keep warm, as there is no risk of electric shock.

In addition, in order to prevent the hot water in the bathtub from cooling down, hot air is passed through the hot air flow around the outside of the bathtub, so the hot air, which is different from the hot water in the bathtub, is hot soot, and the hot water in the bathtub can be kept warm. This device can heat the water in the bathtub to keep it warm by using hot air at an appropriately set temperature regardless of the temperature of the water in the bathtub. can be effectively kept warm. Moreover,
Compared to a system where piping is installed around the outside of the bathtub and the hot water inside the bathtub is kept warm through this piping, if hot soot water were to leak from the piping, the leaked hot soot water would have an extremely negative impact on the building. Since the present invention uses hot air, even if the hot air leaks from the piping, it will not have an adverse effect on the building unlike hot water. In addition, the outer periphery of the hot air flow path on the opposite side of the bathtub is surrounded by heat insulating material, so when hot air is passed through the hot air flow path, the heat of the hot air inside the hot air flow path cannot escape outside except by exchanging heat with the bathtub. This makes it possible to efficiently keep the hot water in the bathtub warm. Furthermore, in this case, if the hot soot is hot water, if even a small amount of the hot soot leaks, the heat insulating material such as glass wool will deteriorate due to the hot water, which is the heating medium, and the heat retention effect will decrease. In the present invention, since the hot soot is hot air, even if the heat insulating material should not be satisfied, the heat insulating material will not deteriorate and the heat insulating effect will not decrease. Therefore, when hot air leaks, it is only necessary to repair the leaked part and it is not necessary to replace the heat insulating material. Moreover, it is equipped with a hot air outlet for discharging hot air from the hot air channel into the bathroom, so the hot air can be used to heat the bathroom to prevent the hot water in the bathtub from getting cold. Therefore, the bather will not feel cold while washing his/her body in the washing area of the bathroom, nor will his/her body suddenly become cold the moment he or she enters the bathroom. In addition, since the hot air from the hot air flow path can be used to heat the bathroom, the temperature inside the bathroom can be maintained relatively high, reducing the amount of heat from the hot water dissipating into the bathroom. This prevents the water in the bathtub from getting cold. In this way, in the present invention, the bathtub is heated by hot air from the outer periphery, and the hot air is blown into the bathroom to heat the bathroom, and the heat inside the bathtub is dissipated into the bathroom, thereby increasing the water temperature. This is to keep it from getting cold. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a sectional view of another embodiment of the same, and Fig. 3 is a sectional view of still another embodiment of the same. Figure 4 is a sectional view of still another embodiment of the same as above, Figure 5 is a sectional view of still another embodiment of the same as above, Figure 6 is a sectional view of still another embodiment of the same as above, and Figure 7 is a sectional view of still another embodiment of the same as above. It is a perspective view of a discharge port part, and 1 is a bathtub and 2 is a hot air flow path.

Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1 A hot air flow path is formed around the outer circumference of the bathtub, and the outer periphery of the hot air flow path on the opposite side of the bathtub is surrounded by a heat insulating material, and a hot air discharge port is provided for discharging the hot air from the hot air flow path into the bathroom. A bathtub heat retention device characterized by comprising: