Heat-accumulating heater

Inactive Publication Date: 2009-09-17
YAMAICHI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0021]With this arrangement, because the paraffinic latent heat storage substance is held in the inner container member so as to be freely flowable, and further held by the elastically deformable outer container member, the entire heater can be sufficiently elastically deformable under the pressure from e.g. skin. Thus, the hea

Problems solved by technology

Because hot packs are produced under strict quality control and technical control, technical glitches or quality deficiencies are rare compared to other ordinary products.
Thus, the heat storage material tends to shift in the container in the gravitational direction, thus making it difficult to cover a wide area of a human body with the heater, irrespective of the position of the human body.
But in this case, when the paraffinic latent heat storage substance is formed into powder par

Method used

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Examples

Experimental program
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example 1

[0067]This example is a heat-accumulating heater of the same type as the first embodiment. In this example, as the powdery latent heat storage substance, powder was used comprising porous silicon oxide impregnated with 60% of a heat-accumulating substance of which the major component is phase-changing n-paraffin having a melting point of 70° C. (Nopos made by Yamaichi Co., Ltd.).

[0068]The heat-accumulating heater of this example comprises four inner container members each formed of a nylon film bag and a polyethylene film bag that are superposed one on the other, four first outer container members which are in the form of rubber packs and in which the inner container members are received, respectively, and a pack made of a nylon fabric in which the first outer container members are held.

[0069]The heat-accumulating heater thus obtained measured 37 cm long, 29 cm wide and 3 cm high, had a volume of 3219 ml, and weighed 1500 g in total including 800 g of powdery paraffinic latent heat ...

example 2

[0070]This example is a heat-accumulating heater of the same type as the first embodiment. In this example, as the powdery latent heat storage substance, powder was used comprising porous silicon oxide impregnated with 60% of a heat-accumulating substance of which the major component is phase-changing n-paraffin having a melting point of 70° C. (Nopos made by Yamaichi Co., Ltd.).

[0071]The heat-accumulating heater of this example comprises four inner container members each formed of an aluminum coating film bag formed with holes having a diameter of about 0.2 μm and a nylon film bag that are superposed one on the other, four first outer container members which are in the form of rubber packs and in which the inner container members are received, respectively, and a pack made of a nylon fabric in which the first outer container members are held.

[0072]The heat-accumulating heater thus obtained measured 37 cm long, 29 cm wide and 3 cm high, had a volume of 3219 ml, and weighed 850 g in ...

example 3

[0073]This example is a heat-accumulating heater of the same type as the first embodiment. In this example, as the powdery latent heat storage substance, cellulose beads are used having a diameter of 5 mm and impregnated with a heat-accumulating substance of which the major component is phase-changing n-paraffin having a melting point of 70° C.

[0074]The heat-accumulating heater of this example comprises four inner container members each formed of an aluminum coating film bag formed with holes having a diameter of about 0.2 μm and a nylon film bag that are superposed one on the other, four first outer container members which are in the form of rubber packs and in which the inner container members are received, respectively, and a pack made of a nylon fabric in which the first outer container members are held.

[0075]The heat-accumulating heater thus obtained measured 37 cm long, 29 cm wide and 3 cm high, had a volume of 3219 ml, and weighed 650 g in total including 600 g of powdery par...

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Abstract

A heat-accumulating heater includes a powdery paraffinic latent heat storage substance sealed in a bag-shaped container. The bag-shaped container includes a plurality of inner container members formed of sheets impermeable to the heat storage substance and water and permeable to air. The inner container members are each received in one of first substantially rectangular outer container members made of rubber that are connected to each other in a row so as to be bendable relative to each other. An air layer is present between each inner container member and the corresponding first outer container member, thereby preventing the inner container member from being pressed against the first outer container member. The first outer container members are in turn received in a second outer container member made of cloth.

Description

BACKGROUND OF THE INVENTION[0001]This invention relates to a heat-accumulating heater including a latent heat storage material and used for health and medical purposes such as in thermotherapy for heating part of a human body.[0002]Heat-accumulating heaters, which are also called hot compressions or hot packs, applies heat to the surface of a human body, thereby increasing the bloodstream and suppressing pain. Recent studies also revealed that they can increase the body muscle mass. Such heat-accumulating heaters can be used, for example, for rehabilitation after disease, care for the elderly, and maintenance of the body muscle mass before and after sports activities.[0003]Heat-accumulating heaters or hot packs are controlled under the pharmacy law in Japan as medical appliances. More specifically, they are classified as general medical appliances (class 1) or controlled medical appliances (class 2). These hot packs can be sold only after investigation as to their adaptability and v...

Claims

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Application Information

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IPC IPC(8): F24J1/00F24V30/00
CPCA61F7/02A61F2007/0292Y02E60/145F28D20/02F28D2020/0008C09K5/063Y02E60/14
Inventor KOMIYA, KUNIHIKO
Owner YAMAICHI CO LTD
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