JPS60122558A - Warmth taking apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a heating device that requires flexibility, such as body-attached heating.

Structure of conventional examples and their problems Conventional latent heat storage materials that utilize latent heat have advantages such as a large amount of heat storage per unit weight and the ability to maintain a constant temperature, so attempts have been made to use them in cordless body warming devices. has been carried out. However, the latent heat storage material is flexible because it is a liquid when storing heat, but loses its flexibility when it releases heat and becomes solid. As the temperature further decreases, the hardness increases. As a personal warming device, loss of flexibility is fatal. In order to solve this problem, the heat storage material enclosing container was divided into bottom sections as shown in FIG. That is, in FIGS. 1 and 2, a heating device 1 is covered with a heat insulating material (not shown), and a heat storage amount 3 is covered with a flexible plastic film or a film 2 made by laminating a plastic film and metal foil. It is enclosed.

Reference numeral 4 indicates a connection portion provided by heat sealing or adhesion of the film 2, and reference numeral 5 indicates a container in which the heat storage material 3 formed of the film 2 is sealed.

In this configuration, flexibility is maintained primarily by the bending of the boundary 6 between the container 6 and the connecting part 4. However, in this configuration, since the container requires a space for enclosing the heat storage material, tensile stress is applied to the film 2 that is the material forming the container. In particular, stress will be concentrated on the boundary 6. Therefore, when the boundary 6 is repeatedly bent, cracks occur in this portion, causing a problem that the heat storage material leaks.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned problem +171, eliminates the sense of discomfort in wearing, and provides a highly reliable warming device that does not leak the heat storage material.

Composition of the Invention The heating device of the present invention includes a connecting part in which a part of a pair of films is glued together, and a large number of independent containers filled with heat storage sides arranged vertically, horizontally, or vertically and horizontally through the connecting part. and an unbonded part provided inside the connecting part.

With this configuration, the heat storage mat has the effect of being easily bent not only at the boundary between the container and the connecting portion, but also at the boundary between the bonded portion and the unbonded portion of the connecting portion.゛Description of Embodiment An embodiment of the present invention will be explained below with reference to FIGS. 3 and 4. Note that the same members as in FIGS. 1 and 2 are given the same numbers.

In FIGS. 3 and 4, the heat storage moon 3 is attached to a container 5 formed by sealing or adhesively bonding a part of the film 2 made by laminating a pair of flexible films or plastic films and metal foil. Sealed. A container 5 in which a heat storage material 3 is sealed is laterally connected by a connecting part 4. A feature of the present invention is that the connecting portion is composed of a bonded portion 7 by heat sealing or adhesive bonding and an unbonded portion 8, and the unbonded portion 8 is located at 1141 of the bonded portion 7 and continues along the container 5. This is the point that is provided.

In this configuration, when an external force is applied, the flexibility of the container 5
Boundary 6 between and connecting portion 4 and adhesive portion 7 of connecting portion 4
and the non-adhesive portion 8 at the boundary 9. therefore,
In the present invention, since the stress applied to the boundary 6 is reduced, repeated stress does not cause cracks and leakage of the heat storage material.

Furthermore, since flexibility is maintained at both the boundary 6 and the boundary 9 as described above, the flexibility can be improved compared to the conventional case.

Next, another embodiment of the present invention will be described using FIG. The difference in FIG. 5 from the previous embodiment is that the containers 5 are connected vertically and horizontally, and according to this configuration, the unbonded portions 8 are provided parallel to the arrayed containers 5.

On the other hand, the boundary 6 between the container 5 and the adhesive portion 7 is on the same line with respect to the arrangement direction of the containers 5 via the adhesive portion 7 of the connecting portion 4.

Therefore, in this configuration, when bending stress is applied,
The bonded portion 7 acts as a resistance, making it difficult to bend at the boundary 6. However, since the boundary 9 can be easily bent since there is no place that acts as resistance, in this embodiment, most of the stress is applied to the boundary 9 during bending, and flexibility is maintained and damage at the boundary 6 is prevented. can be prevented.

Effects of the Invention The heating device of the present invention arranges a large number of flexible containers using a pair of films, connects the containers to provide a connecting portion, and adheres a part of the pair of films at the connecting portion. Since the other parts are not bonded, the stress that occurs when wearing it on the body and acting can be absorbed at both the boundary between the container and the connecting part and the boundary between the bonded part and the unbonded part of the connecting part. Not only does flexibility increase, but the stress applied to the boundary between the container and the connecting part is alleviated by as much as 113 K, which prevents the container from being damaged and the heat storage material leaking out.

[Brief explanation of the drawing]

FIG. 1 is a partial perspective view of a conventional heating device, FIG. 2 is a sectional view taken along line A-B in FIG. 1, FIG. 3 is a partial perspective view of an embodiment of the heating device of the present invention, and FIG. FIG. 3 is a sectional view taken along the line AB, and FIG. 5 is a plan view of another embodiment of the heating device of the present invention. 1... Cutting device, 2... Film, 3
...Heat storage side, 4...Connection part, 5...
... Container, 7 ... Adhesive part, 8 ...
・Unbonded parts. Name of agent: Patent attorney Toshio Nakao and one other person @t
m L 3 Figure 3

Claims (1)

[Claims] A connecting part in which parts of a pair of films are glued together, a large number of independent containers filled with heat storage materials arranged vertically, horizontally, or vertically and horizontally via the connecting part, and a plurality of independent containers provided inside the connecting part. A heating device consisting of an unbonded part.