Heating agent pack and sauna stove for heating agent pack

JP2026096972AActive Publication Date: 2026-06-16木村 力也

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
木村 力也
Filing Date
2024-12-04
Publication Date
2026-06-16

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Abstract

We provide a safe sauna system that doesn't require large equipment, can be used privately in a home bathroom, and does not use electricity or fire. [Solution] This invention provides a heating agent pack (1) that utilizes the exothermic reaction between calcium oxide and water, which is used in heating agents for bento boxes, and packages an appropriate amount of calcium oxide through a filter that can filter water and steam, in a three-dimensional shape that makes it easy to generate steam and easy to handle with tongs when heated. The heating agent pack is placed on a sauna stove that has a perforated tray (2), and water is poured over it from above like a löyly, causing a thermal reaction between the calcium oxide and water in the heating agent pack. The high-temperature steam generated by the thermal reaction warms the bathroom, making the bathroom a substitute for a sauna.
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Claims

1. This heating agent pack features calcium oxide and aluminum powder, which react with water to generate heat, packaged in a three-dimensional shape that is easy to grasp with tongs when heated and allows for easy release of steam, using a filter that can filter out water and steam, in an amount intended to warm a space. When water is poured on it, it generates so much heat that it becomes too hot to touch, emitting high-temperature steam, and is designed to warm a space large enough for several people to enter.

2. A heating agent pack containing calcium oxide, or a heating agent pack according to claim 1, characterized in that the packaging or part of the packaging has a function that allows it to be visually determined whether the temperature is high or low by a heat-changeable dye or thermochromic material.

3. A heating agent pack containing calcium oxide, or a heating agent pack according to claim 1, characterized in that a fragrance-releasing component is placed inside or in the packaging, allowing the user to enjoy the fragrance along with the generated steam.

4. This sauna stove for heating packs features a tray for placing the heating pack, which has numerous holes for draining water and feet to create a gap between the tray and the ground. It is primarily made of durable materials such as stainless steel, which is heat-resistant and rust-resistant.

5. A sauna stove for a heating agent pack, which allows for the control of water flow by stacking two trays as described in claim 4 and making one of them slidable.

6. A sauna stove for a heating agent pack, wherein germanium is contained in the drip tray or part of the material of the sauna stove according to claim 4 or 5.