JPS5839534B2 - heating pad - Google Patents

Description

[Detailed description of the invention] The present invention relates to a heating pad for heating.

By covering and warming local parts of the body, it can cause vascular reflexes and treat pain and stiffness in muscles, joints, and nerves such as tibiobrachial syndrome, frozen shoulder, whiplash, neuralgia, rheumatoid arthritis, and osteoarthritis.

Conventionally, this type of heating pad has been made by putting silicate gel (silica gel) in a cotton bag, which absorbs hot water and becomes a heat storage body when soaked in hot water.

Generally, the above-mentioned silicate gel is formed into a pack, and the pack is soaked in water in a bucket or washbasin once or so to absorb water.

Then, heat this bucket with gas or electricity, and once the water boils, lower the heat and stop heating after about 20 minutes.

After that, place a towel on top of the waterproof cloth, remove the pack, drain the water well, and then place it on the towel.

On top of that, fold a thick towel into quarters and place it on top of it, and warm it by applying the side of the towel to the affected area to be treated.

However, since these conventional methods use hot water, there is a risk of burns.

It takes a long time to prepare before use.

When storing the pack, it takes time and effort to drain the water, and if the water is not sufficiently drained, the water-absorbed pack will grow mold, making it inconvenient to use and store.

Therefore, it is an object of the present invention to provide a novel heating pad that eliminates such conventional drawbacks.One embodiment of the present invention will be described below with reference to the drawings.Figure 1 shows the entire heating pad. FIG. 2 is a sectional view thereof, and FIG. 3 is an enlarged sectional view of portion A in FIG. 2.

1 is a heat storage element, 2 is a heat insulating body having a donut shape as a whole, 3 and 4 are inner and outer skins made of elastic synthetic resin, comb, etc. that form this heat insulating body 2, and 5 is a space between the inner skin 3 and the outer skin 4. A heat insulating agent such as wax or water is sealed in the space.

7 is a heating element, 8 ('i upper heater 9 is an insulating plate, 10° 11
10' and 11' are thin electrode plates with good thermal conductivity for holding these heaters 8 and insulating plates 9; 10' and 11' are these electrode plates 1;
It is a synthetic resin made of an elastic material that covers a 0.11 mm terminal and a 12 rtt heating element 7 in order to mold it slightly larger than the shape of the space 6.

Next, the present invention will be explained in detail.

In the above-described configuration, the heating element 7 as shown in FIG.
is press-fitted into the space 6, but the press-fitting is done by the mutual elasticity of the inner skin 3 of the heat insulating body 2 and the synthetic resin 12 of the heating element 7, and after press-fitting, the two are tightly connected. It's settled.

Then, a plurality of heat storage elements 1 are arranged and stored in a storage bag (not shown), and a voltage is applied to the heater 8 from each terminal 10', 11'.

This storage bag is equipped with a power cord attachment/detachment device.

The heating temperature of the heater 8 is controlled by voltage application to generate heat.

This heat is transferred to the heat insulator 5 through the electrode plates 10.11 and heats it.

After heating and keeping warm, remove the power cord and cover the body with a heating pad to warm the body.

According to the present invention described above, it is possible to provide a novel heating pad having the following features, which eliminates the drawbacks of the conventional ones.

(1) Since the heat insulator and the heating element are separated into separate blocks, it is possible to easily and reliably prevent the heat insulating agent of the heat insulator from becoming shallow.

(2) Electrical insulation of the heating element itself (since one heater is located inside the heat insulator, this can be done easily and reliably).

(3) The heating element can be easily attached to the heat insulating body.

(4) Since the outer surface of the heat generating element and the inner skin of the heat insulating body have elasticity, they are in perfect contact with each other, allowing for good heat conduction.

(5) Since the heat insulating body itself has flexibility, the heat insulating body ('i
The heat insulating body is deformed to match the shape of the heat generating body, and a heat insulating body having the same shape can have heat generating pads of various shapes.

(6) The heating element does not need to be heated with hot water as in the conventional case, so it is extremely suitable for use and storage. Even if the heating element breaks down, it can be replaced very easily with another one.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the entire heat storage element according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line xx' in FIG. 1, and FIG. 3 is an enlarged view of part A in FIG. 2. FIG. 4 is a perspective view for explaining an example of use in an embodiment of the present invention. 2... Heat insulating body, 5... Heat insulating agent, 6...
... Space part, 7 ... Heating element, 8 ...
·heater.

Claims (1)

[Claims] 1 A space is formed in a heat insulating body consisting of an inner and outer skin of an elastic material that seals a heat storage substance such as a heat insulator, and a heating element covered with an elastic material is removably press-fitted into this space, and the outer surface of this heating element is and the inner skin of the heat insulating body are elastically and tightly bonded to each other.