JPS6244939Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention consists of a container made of aluminum foil,
In particular, it relates to a molded container that can also be used as a cooking pot.

There are products on the market that store food in aluminum foil containers and sell them so that the containers can be used as cooking pots at home.

When cooking in this container, accidents have occurred where the bottom of the container melts. The reason for this is that sagging inevitably occurs at the bottom of the container when the aluminum foil is formed. That is, as shown in FIGS. 1 and 2, if there is slack in the bottom 2 of the container 1,
A gap 3 is created between the aluminum foil and the contents (particularly in the case of solid materials) A, and the temperature at the time of heating is not absorbed by the contents, causing the aluminum foil itself to rapidly rise in temperature and melt.

The purpose of this invention is to solve the above-mentioned problems and to provide a molded container made of aluminum foil that has no sagging at the bottom and does not melt.

According to this invention, thin independent depressions and protrusions that can apply uniform tension to the bottom are formed relatively densely and uniformly, and the depth or height of these depressions or protrusions is made relatively small. , the concave or convex side walls were made into smooth inclined surfaces.

As mentioned above, by forming thin, independent irregularities on the bottom, it is possible to absorb slack and provide uniform tension, and by making the irregularities relatively shallow and making the side walls sloped. Since the contents fluidized by heating quickly fill the concave or convex portions, melting of the aluminum foil can be prevented without heating only the aluminum foil.

An embodiment of this invention will be described below with reference to FIGS. 3 and 4.

As shown in FIGS. 3 and 4, the aluminum foil molded container 10 has a bottom 12 surrounded by a peripheral wall 11.
The bottom 12 has a flange 13 extending outward from the peripheral wall 11, and a recess 14 and a projection 15 are formed in the bottom 12.

The above-mentioned irregularities are relatively small and uniformly distributed and have a relatively high density so that there is no sag and uniform tension is applied. In other words, if the unevenness is too large, it will be difficult to apply uniform tension and distortion will occur.
Similarly, if the distribution is not uniform, an evenly tensioned surface cannot be obtained.

Note that the density of the distribution depends on the degree of sagging, but the smaller the unevenness is, the more it becomes necessary to form a large number of unevenness to absorb the sagging.

Further, the concavities and convexities are discontinuous in a dotted manner as shown in the figure.

Further, the depth (height) of the concave or convex portion is made relatively shallow (low), and the side wall 16 or 17 is made to be an inclined surface as smooth as possible.

Incidentally, as shown in FIGS. 3 and 4, thin ribs 18 can be provided at the connection portions, that is, the corner portions, between the rising peripheral wall 11 and the bottom 12. In conventional products, these corner portions were often deformed during handling, detracting from the commercial value, but this problem can be solved by the above-mentioned ribs.

As mentioned above, the container of this invention is able to absorb sag and provide uniform tension by forming uniform, fine, independent unevenness on the bottom, and therefore, in combination with work hardening, it is possible to create tension. While a flat surface can be obtained, the unevenness is relatively shallow and the side walls are sloped, so the former flat surface prevents large gaps with the contents, while at the same time the fluidized contents can enter into the thin unevenness. Since the aluminum foil can be easily connected to the contents, melting of the aluminum foil during heating can be completely prevented.

[Brief description of the drawings]

FIGS. 1 and 2 are cross-sectional diagrams showing the bottom of a conventional container and the state of stored items, FIG. 3 is a plan view showing the container of this invention, and FIG. 4 is an enlarged cross-sectional view of the same. In the figure, 10 is a container, 11 is a peripheral wall, 12 is a bottom, 1
4 is a concave side wall, 15 is a convex side wall, 16 is a concave side wall, and 17 is a convex side wall.

Claims (1)

[Scope of utility model registration request] In a container formed from aluminum foil and provided with a bottom and a peripheral wall surrounding the bottom, the bottom is formed with fine independent depressions and protrusions uniformly and relatively densely so as to absorb the slack and provide uniform tension. An aluminum foil container characterized in that it is formed high, the depth or height of the concave and convex portions are relatively small, and the side walls of the concave and convex portions are sloped surfaces.