JPH0241153Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the construction of a portable fuel that combines an aluminum foil container and solid fuel.

The solid fuel used in this invention is soap-based and contains alcohol. Conventionally, in order to prevent the evaporation of the alcohol contained therein and to make it easier to handle, the solid fuel used is as follows: A structure in which the solid fuel is shrink-wrapped with a resin film has come to be adopted.

In addition, the solid fuel has come to be constructed in such a way that aluminum foil is provided in advance in the form of a sealed container on the bottom surface or side peripheral surface of the fuel. This conventional configuration of solid fuel with an aluminum foil container can be obtained manually, but the same configuration has been manufactured by automation by pressing the solid fuel surface onto the aluminum foil sheet surface.

Therefore, as shown in FIG. 1, the structure of the resin film envelope described above is such that the solid fuel 1 is housed in an aluminum foil container 2, and this is shrink wrapped like the resin film 3. It has been obtained. That is, the aluminum foil container 2 is supported by the resin film 3 so as to be on the peripheral surface of the solid fuel 1.

However, this conventional configuration still has the following drawbacks. In other words, during use, ignition occurs directly on the exterior resin film 3 and its combustion begins, but during the combustion process, the aluminum foil container 2
The part of the resin film 3 located on the outer surface of the aluminum foil container 2 is separated by the aluminum foil container 2, which causes incomplete combustion and generates a bad odor.

It is an object of the present invention to provide a portable fuel that eliminates the drawbacks of the conventional structure described above, does not cause any harmful effects during combustion, can be handled as an integral part, and is suitable for automation.

In order to achieve the above object, the present invention has the following configuration for portable fuel.

That is, a packaged solid fuel in which the solid fuel is substantially hermetically packaged with a resin film, and a bottomed aluminum foil container is tightly fixed to the bottom surface or side circumferential surface of the packaged solid fuel via a thermal bonding part. It is characterized by

The present invention will be described below based on embodiments shown in the drawings.

The solid fuel 11 is shrink-packed with a resin film 12 in a substantially hermetically sealed state. Due to the shrink packaging, the resin film 12 tightly surrounds the solid fuel 11 over its entire periphery. The resin film 12 is preferably made of a material such as polyethylene or polypropylene that is flammable and does not generate toxic gas, and is not recommended to be made of a material that generates toxic gas such as vinyl chloride film.

Furthermore, a bottomed aluminum foil container 14 is tightly fixed to the bottom surface or side peripheral surface of the packaged solid fuel. This fixing structure is realized by forming a thermal bond between the thermal adhesive layer previously applied on the inner surface of the aluminum foil container 14 and the resin film 12 portion. Examples of this thermal adhesive include hot melt adhesives, thermoplastic acrylic resin adhesives, ethylene-vinyl acetate adhesives, and vinyl chloride-vinyl acetate adhesives, but consideration should be given to ease of bonding, high speed, etc. Since hot melt adhesives are superior, it is more convenient to use hot melt adhesives.

The portable fuel of the present invention described above can be automated by the following manufacturing method.
FIG. 3 shows a fusion device 15 as an example of the manufacturing device.
shows. This fusion device 15 includes a cylindrical tube section 16,
The upper portion of this cylindrical tube portion 16 serves as a receiving recess 17 .

On this receiving recess 17, aluminum foil sheets 14', which are separately set in a stacked state, are sequentially paid out with the thermal adhesive layer facing upwards over one side of the sheets, and the aluminum foil sheets 14' that are paid out are 1
The packaged solid fuel is transferred onto the 4' side.
Further, there is an insertion hole 16a on the cylindrical tube portion 16 extending from the receiving recess 17 to the lower part, and a heater 18 is provided along the vicinity of the inner surface of the insertion hole 16a. For this insertion hole 16a, a pushing head 19 extending from the side of the receiving recess 17 to the inside thereof is provided.
is arranged to be movable up and down by a pushing rod 20, and pushes the transferred packaged solid fuel into the insertion hole 16a. At this time, the aluminum foil sheet 14' is deformed into a container shape to match the circumferential shape of the packaged solid fuel. The aluminum foil container 14 is in close contact with the surface of the resin film 12 of the packaged solid fuel via a thermal adhesive layer.
8 to heat the thermal adhesive layer and resin film 1.
2 are fused together to form a thermally bonded portion 13, and the aluminum foil container 14 is fixed onto the packaged solid fuel. Further, from below the insertion hole 16a, a heating table 21 having a heating heater 22 near the upper surface is supported by a table rod 23 so as to move up and down according to the operation of the pushing head 19, and during the pushing process. The heating table 21 is pressed against the bottom of the packaged solid fuel inside and the aluminum foil container 14 portion in close contact with each other, thereby creating a thermally bonded portion 13 similar to that described above. In such heat fusion processing, the aluminum foil container 1
4 is located at the outer position, and its wall portion acts as a heat medium. The portable fuel processed in this way is sent out from the lower end of the insertion hole 16a.

Automation processing is sequentially achieved by repeating the above-mentioned processing steps.

As described above, the structure of the thermally bonded portion 13 in the portable fuel of the present invention makes it possible or easy to mechanically handle the plurality of aluminum foil sheets 14', thereby contributing to the automation of its manufacturing.

Note that applying an overcoat agent such as cellulose such as nitrocellulose or ethyl cellulose or epoxy resin to the back side of the aluminum foil sheet 14', or applying a mold release agent such as silicone, may cause problems in blocking and handling. This is preferable for the improvement of.

In each of the above embodiments, the packaged solid fuels are all shrink-wrapped, but they may be packaged in a similar substantially sealed packaging configuration using other general packaging means.

As explained above, the present invention has a structure in which solid fuel is wrapped in a resin film and an aluminum foil container is fixed to this in a housing form.The resin film is completely burned when the solid fuel is combusted, so it is different from the conventional method. It does not produce any odor. In addition, since the aluminum foil container is tightly fixed to the packaged solid fuel, its constituent parts can be handled as a single unit in the same way as the solid fuel itself. It stably protects the surface and also functions as a residue receiver. Moreover, since the aluminum foil container is fixed by heat fusion with the resin film at the heat bonding part, its processing is simple and ideal for manufacturing automation.

[Brief explanation of drawings]

Figure 1...Longitudinal cross-sectional view of conventional portable fuel, Figure 2...
FIG. 3 is a vertical cross-sectional view of the portable fuel of the present invention; a vertical cross-sectional view illustrating an example of the manufacturing method thereof. Explanation of drawing symbols, 11...solid fuel, 12...
Resin film, 13... thermal bonding part, 14... aluminum foil container.

Claims (1)

[Scope of utility model registration request] A packaged solid fuel in which solid fuel is substantially hermetically packaged with a resin film, and an aluminum foil container with a bottom is tightly fixed to the bottom surface or side peripheral surface of the packaged solid fuel via a thermal bonding part. A portable fuel characterized by: