JPH045961Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention (Field of Industrial Application) The present invention relates to the structure of a simple disposable heater that uses a chemical heating element that reacts with water or air.

(Prior art) Regarding the structure of a simple heater using a chemical heating element, there are no structures other than those shown in the attached drawings of the patent application for a chemical heating element proposed by the present inventor on December 3, 1981. In, Japanese Patent Application Laid-Open No. 51-73467 and Publication No. 1983-
This is shown in Publication No. 8142.

The invention disclosed in JP-A No. 51-73467 has a double-structured container, in which a solid drug that reacts with the liquid drug is sealed in the bottom part of the space, and a liquid drug in the upper part. A porous sheet is provided to ensure uniform dripping.

In addition, the invention disclosed in Publication No. 59-8142 is
It is equipped with a double-walled container for accommodating the contents, a pedestal supporting the container and having ventilation holes, and a chemical heating element housed in the bag.

(Problems to be solved by the invention) The purpose of the invention is to improve the performance and mass productivity of a simple heater and provide it at a low cost. The packaging structure of chemical heating elements is too loose and cannot withstand shock and vibration during transportation, causing them to scatter or generate heat before use, resulting in quality deterioration.In order to solve these problems, chemical heating elements are The problem is that the cost is increased by making the container housed in a bag and attaching it during use, or by making the structure of the container stronger.

B. Structure of the invention (means for solving the problems) In order to solve the above problems, the simple heater of the invention is provided with a chemical heating element 2 filled in the inner bottom of an outer container 1 equipped with a supply hole 1a at the bottom. A presser member 3 is provided on at least the upper and lower surfaces of the chemical heating element 2, and an inner container 4 containing the contents 6 and having a smaller diameter than the outer container 1 is inserted into the outer container 1, so that the outer container 1 and the inner A control member 5 made of resin foam, sintered body, fiber, paper, etc. is provided at the upper opening of the gap formed by the container 4, and the outer container is filled with a chemical heating element that reacts with water. It has a structure in which the above-mentioned simple heater is further covered with a water-impermeable or air-impermeable blocking member 8.

(Function) The simple heater of the present invention constructed by the above-mentioned means can be used by first opening the blocking member 8 covering the simple heater if the filled chemical heating element 2 reacts with air. Air enters through the supply hole 1a of the outer container 1 and is supplied to the chemical heating element 2. On the other hand, if the air reacts with water, pour an appropriate amount of water into the receiver 7 and fill the chemical heating element 2 on top of it. By installing the outer container 1, water enters through the supply hole 1a, is supplied to the chemical heating element 2, starts generating heat, and heats and keeps the contents 6 in the inner container 4 at an appropriate temperature. It is.

(Embodiment) An embodiment of the simple heater according to the present invention will be described based on FIGS. 1 and 2.

First, the embodiment shown in Fig. 1 shows an example using a chemical heating element that reacts with water, and is made of a thin aluminum, iron, plastic, paper, or a composite plate thereof, and has a supply hole 1a at the bottom. The inner bottom of the outer container 1 is filled with a chemical heating element 2.

Pressing members 3 having water permeability and air permeability are provided at least at the upper and lower portions of the chemical heating element 2 to prevent the chemical heating element 2 from scattering.

Furthermore, an inner container 4 made of a thin plate similar to that of the outer container 1 and containing the contents 6 is inserted into the outer container 1, and a foamed resin is inserted into the upper opening of the gap formed by the outer container 1 and the inner container 4. A control member 5 made of a body, a sintered body, fiber or paper and having air permeability,
The dissipation rate of the heat updraft generated by the exothermic action of the chemical heating element 2 is suppressed, and heating and heat retention by the heat updraft are improved.

The receptor 7 is a water-impermeable member that stores water necessary for the chemical heating element 2 to generate heat, and seals the chemical heating element 2 together with a water-impermeable shutoff member 8 before use.

In use, by removing the blocking member 8 and pouring an appropriate amount of water into the receiver 7, the water enters the chemical heating element 2 through the supply hole 1a, and the chemical heating element 2 starts generating heat. .

The thermal energy of the exothermic action is directly conducted to the bottom of the inner container 4, and generates a thermal upward current in the gap formed between the outer container 1 and the inner container 4,
heating and keeping the side wall of the inner container 4 warm while the heated rising air is dissipated to the outside air through the control member 5;
This is to heat and keep the contents 6 at an appropriate temperature.

Next, the embodiment shown in FIG. 2 shows an example using a chemical heating element that reacts with air, and does not require a receiver for storing water. The structure is sealed with a chisel.

In use, by removing the blocking member 8', air enters the chemical heating element 2' through the supply hole 1'a, and the chemical heating element 2' starts to generate heat.

The heat energy of the exothermic action acts on the bottom and side walls of the inner container 4' to heat and keep the contents 6' at an appropriate temperature, similar to the embodiment shown above.

C. Effects of the invention The simple heater of the present invention, which has the above-mentioned configuration and function, can generate heat energy anytime and anywhere as long as there is water or air.

Furthermore, the chemical heating element is surrounded by a pressing member to prevent the chemical heating element from scattering during manufacturing and transportation, thereby improving hygiene and performance.

In addition, by equipping the upper opening of the gap formed by the outer container and the inner container with an air permeability control member that suppresses the dissipation rate of the heat rising air, more thermal energy of the heat rising air is transferred to the inner container. We are working to improve thermal efficiency.

Further, since the manufacturing and assembly of each member can be easily performed using well-known and publicly used techniques, a convenient, disposable, and simple heater can be provided at low cost.

[Brief explanation of drawings]

Figures 1 and 2 show an embodiment of the simple heater of the present invention, and both are vertical perspective views. Note that the symbols in the figure indicate the following. DESCRIPTION OF SYMBOLS 1... Outer container, 2... Chemical heating element, 3... Pressing member, 4... Inner container, 5... Control member, 6...
...contents, 7...receiving member, 8...blocking member.

Claims (1)

[Scope of utility model registration request] A holding member 3 that fills the inner bottom of an outer container 1 with a supply hole 1a at the bottom with a chemical heating element 2 that reacts with water or air, and prevents the chemical heating element 2 from scattering.
and an inner container 4 having a smaller diameter than the outer container 1 containing the contents 6 is inserted into the outer container 1, and an upper opening of a gap formed by the outer container 1 and the inner container 4. A simple heating device characterized in that a control member 5 made of a ventilation body is provided, and an outer container 1 provided with a chemical heating element 2 and a pressing member 3 is covered with a water-impermeable or non-air permeable blocking member 8. vessel.