JPH07255813A - Foot warming bath unit - Google Patents

Abstract

PURPOSE:To enhance safety, simplify operation, and simply keep a foot warming bath unit at a proper temperature. CONSTITUTION:Waterproof heating elements 2 and 2' controlled at a temperature not more than a heat resistant temperature of an inner vessel 1, are arranged on an outside surface of the inner vessel 1 which is molded by an electric insulating material and whose upper surface is opened, and these inner vessel 1 and heating elements 2 and 2' are covered with an outer vessel 3 which is molded by an electric insulating material and constitutes the contour and an outer cover 7 which blocks up an upper surface opening of the inner vessel 1 and has a cylindrical body 8. A foot warming bath unit has a control body 4 to control a calorific value of the heating elements 2 and 2' and a setting means 5 to set the calorific value.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warm bath for legs which warms the legs with hot water.

[0002]

2. Description of the Related Art As shown in FIG. 2, a container 11 made of a heat insulating material such as styrene has an appropriate temperature (about 38.degree. C. to 45.degree. C.) as shown in FIG.
Pour an appropriate amount of warm water 12 into it, dissolve the bath chemicals in it,
Both legs are immersed in a chair 13 or the like while sitting and held for a suitable period of time to heat the human body through the skin of the legs by the action of the energy of the hot water 12 and the chemicals for the bath. There are those that convey the action of heat and drugs to improve blood circulation and recover fatigue and maintain health.

In addition, a far-infrared radiator is provided on the upper surface of the container, and the legs are heated by both hot water and far-infrared rays (Japanese Patent Laid-Open No. 58-15857), and the inside of the container is divided by a partition plate. There is also one that is divided into two left and right chambers, and hot water of different temperatures is put into both chambers to heat the legs at different temperatures according to the obstacle of the human body. (Japanese Utility Model Publication No. 2-39743)

[0004]

In the conventional apparatus shown in FIG. 2, the container 11 has a certain degree of heat retaining ability, but the hot water is cooled after several tens of minutes of use. It was necessary to throw away hot water, add hot water again to make a proper temperature hot water, and to add bath chemicals, which was very troublesome and uneconomical, and it was dangerous when exchanging hot water. .

In the case of heating the legs with both hot water and far infrared rays, or in the case where the inside of the container is divided into two left and right chambers to hold hot water of different temperatures, a heating element is built into the container or directly into the hot water. Since the heating element is attached to the position to be touched, there is an unsafe element such as a decrease in hot water temperature cannot be prevented, and a decrease in insulation of the heating element directly leads to electric shock to the human body.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and more specifically, it is formed on an outer bottom surface and a side surface of an inner container which is made of an electrically insulating material and has an open top surface. While providing a waterproof heating element that is controlled at a temperature not higher than the heat-resistant temperature of the container, these inner container and heating element, an outer container that is formed of an electrically insulating material to form an outer shell,
Cover the upper opening of the inner container and cover the calves of both legs of the user with an outer lid having a stretchable tubular body, and further control the heating value of the heating element and the heating value of the heating element. It is provided with setting means for setting, and is further provided in contact with the inner container in series with the heating element, the overheat preventing device operating at a temperature lower than the heat resistant temperature of the inner container.

[0007]

Function: Pour hot water adjusted to an appropriate temperature into the inner container, dissolve the bath chemicals in it, and set the appropriate temperature with a setting means such as a dial to supply appropriate power to the heating element. It never cools. Further, since the control body adjusts the electric power in accordance with the set temperature, the desired temperature can be obtained continuously within the preset range. Moreover, since the heating element is waterproofed and is installed in a state of being isolated by an electric insulator, it is sufficient to prevent electric shock. Further, since the heating element has a saturation temperature lower than the heat-resistant temperature of the inner container when energized, the inner container is not damaged even if the control body fails. Furthermore, since the hot water covers the entire area from the calf to the bottom, the heating effect can be obtained in a short time.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical sectional view of the present invention.

In the figure, reference numeral 1 denotes an inner container having an upper opening, which is molded from an electrically insulating material such as polypropylene resin having a heat resistant temperature of about 120 ° C. and has a volume suitable for accommodating both legs of a user. . 2 is on the outer bottom surface of the inner container 1,
Reference numeral 2'denotes a cord-shaped heating element provided on the outer side surface of the inner container 1. The heating wire is wound around a core yarn made of glass or the like, and is covered with an electrically insulating material such as silicone rubber. It is set to be ℃. An outer container 3 is formed of an electrically insulating material such as polypropylene resin to form an outer shell.

Reference numeral 4 is a control body which controls the outputs of the heating elements 2 and 2'by using the resistance change of the thermistor so as to keep the hot water temperature at about 38 ° C to 45 ° C.

Reference numeral 5 is a setting means such as a dial for the user to set the temperature of the hot water appropriately and is exposed to the outside.

Reference numeral 6 denotes an overheat preventing device such as a thermal fuse, which is attached to the outer bottom surface of the inner container 1 and is provided with a control body 4.
As a safety device in case of failure, the heating elements 2, 2'are prevented from overheating. Reference numeral 7 denotes an outer lid for covering the upper surface of the inner container 1, which is attached to the inner container 1 via a packing or the like in a watertight manner so as to be openable and closable, and is formed of polypropylene resin or the like. Reference numeral 8 denotes a tubular body provided in a part of the outer lid 7, which is made of polyethylene resin or the like that is fixed to the outer lid 7 in a watertight state. By expanding and contracting the bellows portion, a dimension corresponding to the leg of the user The inner diameter is set slightly larger than the thickness of the calf of the user's leg. Reference numeral 9 denotes hot water placed in the inner container 1, and 10 denotes bath chemicals dissolved in the hot water 9. All electric routes are waterproofed.

The present invention is constituted as described above, and the method of use is to remove the outer lid 7 and adjust the temperature to a suitable temperature in advance with hot water 9
Is placed in the inner container 1, after which the tubular body 8 is adjusted to the length of the user's legs, the outer lid 7 is attached, the power source is connected, and the setting means 5 is set to the temperature desired by the user. .

As a result, the heating element 2, 2'starts to be energized, the control element 4 controls the energization operation to continue the heat generation, and when the temperature reaches the set temperature, the operation of stopping the energization is repeated to repeat the hot water 9
Keep the temperature constant.

The user removes the outer lid 7, puts a prescribed amount of the bath medicine 10 into the hot water 9, sits down on a chair (not shown), puts the legs into the hot water 9 in the inner container 1, and forms a cylindrical body. Extend the bellows part 8 to cover the calf. When you put your legs in, the water level of the hot water rises and the hot water begins to cover the calf. When the amount of hot water is insufficient, hot water is added and the state is maintained for 2 to 3 minutes. This can improve the blood circulation of the user himself.

If the control body 4 malfunctions during use and the heating elements 2 and 2'are energized to a temperature higher than the set temperature, the temperature of the heating elements 2 and 2'becomes high, and the heating element 2 is also heated. 2 ', the temperature of the overheat prevention device 6 connected in series rises, and finally the heat generating circuit is cut off from the power source to stop the heat generation and keep the equipment safe.

At this time, if the saturation temperature of the heating elements 2 and 2'is below the heat resistant temperature of the inner container 1, the inner container 1 will not be damaged even if the overheat prevention device 6 does not operate, and the safety of the user is ensured. Can be secured.

Further, since the inner container 1 is made of synthetic resin, it is highly waterproof and has a high electrical insulating property, so that the user is protected from electric shock.

Further, since the heating elements 2 and 2'are covered with rubber or synthetic resin and have a cord shape, they can be installed in a wide range according to the shape of the inner container 1 and have a high degree of freedom of design, and also have an insulating property. And the waterproofness can be increased.

Further, since the outer container 3 forming the outer shell is also made of synthetic resin, it has a high resistance to water from the outside and can maintain high electrical safety.

[0021]

According to the present invention, a waterproof heating element is provided on the outer bottom surface and side surfaces of the inner container, and the heating element is controlled by the control element, so that the temperature drop during use is small and the feeling of use is good. .

Further, by setting the heat generation amount by the setting means, the hot water temperature can be always kept at an appropriate temperature, and it is not necessary to perform the troublesome work of adjusting the hot water each time it is used, unlike the conventional products.

In addition, since the container is composed of the outer container and the waterproof heating element, which are made of an electrically insulating material, the safety of the user against electric shock is high, and the frequency of disposing of the hot water is low, which saves water. To be

Further, since a temperature rise prevention device that operates below the heat resistant temperature of the inner container is provided in series with the heating element, it is possible to improve safety. In addition, the area where the legs are covered with hot water is wide, and the heating effect can be obtained in a short time.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a leg warm bath according to an embodiment of the present invention.

FIG. 2 is a side view showing a conventional use state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 inner container 2, 2'heating element 3 outer container 4 control body 5 setting means 6 overheat prevention device 7 outer lid 8 tubular body

Claims (1)

[Claims] 1. A waterproof heating element (2), which is formed of an electrically insulating material and has an upper surface opened, is provided on the outer surface of the inner container (1) and is controlled to a temperature not higher than the heat resistant temperature of the inner container (1). (2 ')
The inner container (1) and the heating elements (2) and (2 ') are provided with an outer container (3) formed of an electrically insulating material to form an outer shell and an upper opening of the inner container (1). A control body (4) for controlling the amount of heat generated by the heating elements (2), (2 '), which is closed and covered with an outer lid (7) having a cylindrical body (8), and heating elements (2), ( A leg warm bath comprising a setting means (5) for setting the heat generation amount of 2 ').