JP3195755B2 - Leg bath - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, this type of leg warming bath has been practically used. A cord-shaped heater, a sheathed heater and the like are provided on a back surface of a bottom surface of an inner container 1 having an open top as shown in FIG. A control body 4 for adjusting the output of the heating element 2, an overheating prevention device 6 as a safety device, an outer container 3 for covering the heating element 2, and a hot water temperature for setting a heating value Some of them consist of setting means 5. (See Japanese Patent Application Laid-Open No. 7-100180) In this case , when used, an appropriate amount of hot water heated to an appropriate temperature (38 ° C. to 45 ° C.) is poured into the inner container 1 and a bath medicine is dissolved therein, as shown in FIG.
Immerse both legs in a posture sitting on 3 mag and hold it for an appropriate time to warm the human body through the skin of the legs by the action of the energy of hot water and the bath medicine. It conveys the action of drugs and improves blood circulation to recover from fatigue, maintain health, and promote health. Also, the above
In addition, in order to raise the hot water temperature inside the inner container quickly, the inner container
In some cases, a heating element was provided on the bottom and side surfaces of the above. (Special
JP-A-61-90675, JP-A-8-126679
No. )

[0003]

In the conventional leg warmer, a heating element is provided on the back surface of the bottom surface of the inner container, which is a position where the heating efficiency is good, and the inner container is directly heated, and this heat is generated. The structure is such that heat is conducted by conducting heat to the hot water. Ma
In addition, heat generators should be installed on the bottom and side of the inner container.
However, the hot water in the inner container is mainly
The side heating elements are only for keeping hot water,
It has become something .

Normally, in order to obtain the effect of a warm bath, it is necessary to put the legs in the inner container for about 20 minutes before use, but the inside of the bottom surface of the inner container where the legs are in direct contact is heated by the heating element to reduce the temperature of the hot water. Therefore, the maximum temperature exceeds 50 ° C., and there is a problem that there is a danger of burns, the temperature difference from the hot water temperature is large, and the usability is poor. Conversely, if the power rating is such that the bottom surface is not hot, there are drawbacks such as that the hot water temperature does not rise to a desired temperature or that the speed of rising the hot water temperature is slow.

Even if the temperature is set with a dial, it is not clear how many times the temperature of the hot water is actually at that time. Therefore, if it is desired to know the temperature, a glass tube-type thermometer is inserted and checked.

In addition, a temperature detecting element such as a thermistor connected to the controller must not be directly put in hot water for safety but must be indirectly detected from the outer surface of the inner container. Because it was attached and fixed integrally with the part,
It did not sufficiently follow the hot water temperature that required accurate control.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and the heating element is divided into a side heating element and a bottom heating element. The heating element side is set to 15% or more and 50% or less. In addition, a digital hot water temperature display device is installed on the outer part of the inner container or outer container, and the temperature detecting element of the control body has a protruding part with a heat transfer foil with an adhesive that has a partly protruding shape. And is bonded and fixed at a position where the connection is made.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION In a leg warmer according to the present invention, hot water adjusted to an appropriate temperature in advance is poured into an inner container, a bath medicine is dissolved therein, and the temperature is set to an appropriate temperature by setting means such as a dial. The body is supplied with adequate power and the hot water does not cool down. Further, since the control body adjusts the electric power in accordance with the set temperature, a desired temperature can be continuously obtained within a preset range. Further, since the heating element is provided with a waterproof treatment and is installed in a state where the heating element is isolated by an electric insulator, the measures for preventing electric shock are sufficient. In addition, since the heating element has a saturation temperature at the time of energization lower than the heat-resistant temperature of the inner container, the inner container is not damaged even when the controller is out of order.

Further, the heating element is connected to the temperature detecting element by a heat transfer foil with an adhesive, which has a shape protruding outside a portion of the inner container containing hot water and outside a mounting range of the heater.
By bonding and fixing, the temperature of the hot water can be accurately controlled, and at the same time, the amount of heat generated by the heater can be quickly controlled even for abnormal heating such as baking.

In addition, the heating element is composed of a bottom heating element and a side heating element.
15% or more and 50% or less of the bottom heating element 2a side
By setting the side heating element 2b side to 50% or more of the whole, it is possible to lower the temperature of the bottom surface where the foot directly touches even if the same hot water temperature is obtained, and the skin of the sole does not become too hot, Comfortable without burns when used for a long time
As a result, a safe leg warming bath can be provided , and a sufficient power rating can be applied to the two heating elements, so that the temperature of the hot water can be quickly increased.

Further, the distribution amount of the bottom heating element to the whole is 5
By controlling the temperature to 0% or less, the temperature of the part where the foot directly touches can be suppressed to a temperature or less that does not cause a problem even for a person with weak skin.

On the other hand, by setting it to 15% or more, convection is generated by the heating force from below by the bottom heater, so that the hot water can be sufficiently removed and the heating efficiency is improved.

[0013] Further, by providing a digital hot water temperature display device, it is possible to directly read the actual temperature of the hot water set by the dial by using a numerical value, and it is possible to confirm the optimum operating temperature for oneself, so that it is effective and appropriate. It is possible to carry out a leg warm bath.

[0014]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view of a leg warming bath of the present invention, FIG. 2 is a front view, FIG. 3 is an inner view of a main part, and FIG.

In FIG. 1, reference numeral 1 denotes an inner container having an upper opening, which is formed of an electrically insulating material such as a polypropylene resin having a heat resistant temperature of about 120 ° C. and has a volume suitable for accommodating both feet of a user. Reference numeral 2 denotes a cord-shaped heating element, which is formed by winding a heating wire around a core yarn made of glass or the like, and coated with an electrically insulating material such as silicon rubber, and its saturation temperature is 100 ° C.
It is set to be. Reference numeral 3 denotes an outer container which is formed of an electrically insulating material such as a polypropylene resin to form an outer shell.

A control unit 4 controls the output of the heating element 2 to a temperature of 38.degree.
It is controlled to keep it at about 5 ° C. Reference numeral 5 denotes a setting means such as a dial for allowing a user to appropriately set the temperature of hot water, and is exposed to the outside. Reference numeral 6 denotes an overheating prevention device such as a temperature fuse, which is attached to the outer bottom surface of the inner container 1, and prevents the heating element 2 from overheating as a safety device when the control body 4 breaks down.

Reference numeral 7 denotes an outer lid which covers the upper surface of the inner container 1 and is formed of polypropylene resin or the like. 9 is hot water put in the inner container 1, and 10 is a bath chemical dissolved in the hot water.
All electrical paths are waterproofed.

The heating element 2 is divided into a bottom heating element 2a and a side heating element 2b, each of which is connected in series.

Here, the electric power of the entire heating element is set to 250 W, and the distribution amount to the whole of the bottom heating element 2a is 9% of 36%.
Assuming 0 W, the side surface heat generation value 2b is 160 W, which is 64%.

A hot water temperature display device 4a is provided on the outer portion of the inner container 1.
The hot water temperature is digitally and automatically displayed on a numeric display panel by a signal from a temperature detecting element (not shown) provided at an appropriate position on the outer surface of the inner container 1 separately.

Further, a temperature detecting element 4c composed of a thermistor or the like connected to the control body 4 is provided with an adhesive on the back surface on the outer surface of the portion of the inner container 1 containing hot water and outside the mounting range of the heating element. The heat-transfer foil 4b is fixed by the attached heat-transfer foil 4b, and a protruding portion, such as an L-shape, of the heat-transfer foil 4b is connected and fixed to the heat generating element 2.

According to the present invention, the outer lid 7 is removed, hot water 9 previously adjusted to an appropriate temperature is put in the inner container 1, and the power is connected by attaching the outer lid 7 to the power supply. The setting means 5 is set to a desired temperature.

As a result, energization of the heating element 2 is started,
Heat generation is continued until the control body 4 controls the energization operation, and when the temperature reaches a set temperature, the operation of stopping the energization is repeated to keep the temperature of the hot water 9 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 the chair 13, puts his feet in the hot water 9 in the inner container 1, and waits for 15 to 30 minutes. keep. This can improve the user's own blood circulation.

In addition, if the operation of the control body 4 becomes defective during use, and the heating element 2 is energized to a temperature equal to or higher than the set temperature, the temperature of the heating element 2 rises, and finally the heating circuit is cut off from the power supply to generate heat. To keep the equipment safe.

At this time, if the saturation temperature of the heating element 2 is equal to or lower than the heat-resistant temperature of the inner container 1, the inner container 1 is not damaged even when the overheat prevention device 6 does not operate, and the safety of the user can be secured.

Further, since the inner container 1 is made of a synthetic resin, the inner container 1 has high waterproofness and high electrical insulation, thereby protecting the user from electric shock.

Further, since the heating element 2 is covered with rubber or synthetic resin and has a cord shape, the heating element 2 can be installed in a wide range with a high degree of design freedom according to the shape of the inner container 1, and the insulation and waterproof properties are enhanced. be able to.

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

Further, since the heating element 2 is divided into two parts, the electric power of the bottom heating element 2a is small, and the electric power of the side heating element 2b is large. The temperature of the bottom where the foot touches directly can be lowered,
The skin on the sole of the foot is not too hot, and there is no fear of low-temperature burns even when used for a long time.

On the other hand, with respect to the entire electric power, a sufficient amount of heat can be obtained by the sum of the two heating elements to quickly raise the hot water temperature.

Also, by installing the hot water temperature display device 4a, it is possible to automatically know at a glance how much the hot water temperature set by the dial 5 is actually in a state of being in the leg warm bath. The temperature can be checked, and an effective and optimal leg warm bath can be implemented.

Heat transfer foil 4b having a protruding portion
By fixing the temperature detecting element 4c by the above, the hot water temperature can be accurately controlled at a required temperature set by the dial 5, and the amount of heat generated by the heating element 2 is quickly suppressed even in abnormal use such as idling. And can satisfy two different respective requirements to the maximum.

If the width d of the protruding portion is increased,
The heat transfer from the heating element increases more than the heat transfer from the hot water temperature,
If the width is narrowed, it follows the hot water temperature more. By changing the width d, the heat transfer coefficient from the heating element 2 can be adjusted arbitrarily to balance with the hot water temperature detection. ing.

[0035]

According to the present invention, the heating element is formed as a bottom heating element.
Divided into two side heating elements, 15% of the bottom heating element side
Not less than 50% and the side heating element side is 50% or more of the whole
To get the same hot water temperature by placing
Lowers the temperature of the bottom surface, which heats the skin of the sole
It doesn't break and you don't have to worry about burns even if you use it for a long time
Comfortable and safe leg warm bath, and two heating elements
Since the appropriate power rating can be applied, the temperature of the hot water rises quickly.
It becomes a thing .

Further, by providing the digital hot water temperature display device, the user can confirm the optimum use temperature and can perform an effective and appropriate leg warm bath.

Further, since the temperature detecting element is bonded and fixed with a protruding heat transfer foil, the temperature of the hot water can be accurately controlled.
Increased safety against abnormal use.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a leg warm bath according to one embodiment of the present invention.

FIG. 2 is a front external view of the same.

FIG. 3 is an internal view of the main part.

FIG. 4 is a view showing a use state of the leg warm bath;

FIG. 5 is a cross-sectional view of a leg warming bath showing a conventional example.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 inner container 2 heating element 2a bottom heating element 2b side heating element 4a hot water temperature display device 4b heat transfer foil 4c temperature detecting element

Claims (3)

(57) [Claims] A waterproof heating element (2) is provided outside an inner container (1) formed of an electrically insulating material and having an open upper surface, and the inner container (1) and the heating element (2) are provided.
Is covered with an outer container (3) formed of an electrically insulating material and forming an outer shell, and further provided with a control body (4) for controlling the amount of heat generated by the heating element (2). (2) is that the bottom heating element (2a) and the side heating element (2b) are divided into two parts, and the heating value distribution is that the bottom heating element (2a) side is 15% or more and 50% or less with respect to the whole. Characterized leg warmer. 2. The leg-heated bath according to claim 1, wherein a digital hot water temperature display device (4a) is installed on an outer portion of the inner container (1) or the outer container (3). 3. A temperature detecting element (4c) of a control body (4) for controlling the amount of heat generated has a partly protruding shape, and a protruding portion is formed by a heat transfer foil (4b) provided with an adhesive layer on the back surface. Is a heating element (2)
2. The leg warmer according to claim 1, wherein the leg warmer is adhesively fixed at a position connected to the leg heater.