JPH0423799Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a variable capacity container for foods whose capacity increases by heating and cooking, such as puffed foods.

(Prior Art) Conventionally, as a method of heating and cooking puffed foods etc. in a container, the puffed foods, etc. are placed in advance in a container whose capacity will reach its maximum capacity when cooked.
I try to put food in it before the capacity increases. For example, it is shown in Japanese Utility Model Application No. 60-38593.

Furthermore, many conventional containers for puffed foods are bag-shaped.

(Problem to be solved by the invention) As described above, if a food that has not yet increased in capacity is placed in a container whose capacity is adjusted to the maximum capacity when puffed food is heated and cooked, there will be a space in the container. If it is a bag container, it is necessary to fold the space. When using a bag container, it is necessary to transfer the food to another container after heating and cooking.

In order to solve the above-mentioned problems, it is possible to use a retractable container with a bellows-shaped container body, but this container has insufficient functionality as a food after cooking.

Further, methods for making a hemispherical shape include connecting multiple ellipsoidal parts and thermoforming a plastic sheet, but these methods are difficult to make elastic.

(Means for solving the problem) Therefore, the technical problem of the present invention is to obtain a container for puffed food that has a function as a tableware after cooking, and this technical problem is solved. The technical means of the present invention is to adhere a circular lid plate to a container body which is configured to have a hemispherical shape with bellows when extended and a half polygonal shape when flattened when viewed from the side; This variable capacity container is characterized in that a zipper for opening the container body, which can be formed into a semi-cylindrical shape with the outer periphery of the container body bellows, is provided on a lid plate portion which becomes a bending portion when the container body is folded.

(Function) When the container body is folded, the container body is heated and expanded into a hemispherical shape with a bellows shape, and then the zipper of the lid plate is opened to make the container body into a semicircular cylinder with a bellows-like outer periphery. After forming the container, the heated food can be eaten as is by using the container body as a tableware.

(Example) The embodiments shown in the drawings will be described below.

Reference numeral 1 denotes a container main body, which has a hemispherical shape and has a bellows shape when extended as shown in FIG. As the material, paper-based materials such as oil-proof paper, polyethylene laminated paper, polyester laminated paper, etc. can be considered, but oil-proof paper is most desirable from the viewpoint of processability.

Reference numeral 2 denotes a circular lid plate, which is adhered to the container body 1. Possible materials include oil-resistant paperboard, polyethylene laminate paperboard, polyester laminate paperboard, etc., but oil-resistant paperboard is most desirable in terms of processability.

Furthermore, the zipper 3 is provided in the radial direction of the lid plate 2, that is, it is provided at the center of the lid plate, which is the center of the bonded area between the left and right container bodies and the lid plate, as shown in Fig. 1C. , serves as a fold, and by using this portion as a folding portion, the container body 1 can be folded into a flat state as shown in FIG. 1A. The zipper may be of the same mechanism as the mechanism normally used for paper boxes, etc., which intermittently makes cuts in paperboard.

The lid plate and the bellows part (container body) can be bonded by two methods: with the container body folded, the end in the X direction in Figure 3 is glued to the 4 part of the lid plate using adhesive, or by laminating resin. In the case of materials, it can be bonded by heat sealing. However, only part 4 is glued, and part 5 is not glued because it needs to be free.

The sectional view of the bellows portion when contracted is half of a polygon in side view as shown in FIG. 2, and one side corresponds to A, B, C, and D in FIG. 3. Any polygon can be used for the number of angles, but a smoother hemispherical shape can be obtained by increasing the number of angles, that is, decreasing the dimensions of A, B, C, and D to increase the number of sides. is obtained.

Figure 3 shows a developed view of the bellows section. A, B,
C and D correspond to one side of a polygon, that is, a rhombus. Side A,
The angle F of B and the angle G of sides C and D can be freely selected within the range of 10 to 30 degrees, but generally
20° is preferred.

The ruled line E is folded inward against the container (valley fold),
A, B, C, and D are subjected to ruled line processing and folded outward (mountain fold).

By folding the container body after applying the ruled lines in the above-described manner, it becomes expandable and contractible in the X direction and has a semicircular shape in the Y direction.

Figure 1 shows the state in which the variable capacity container of the present invention is filled with appropriate amounts of popcorn seeds and oil and fat, and then heated in a microwave oven, and A shows the state before heating. As a method of filling popcorn seeds into a container, one side of the adhesive portion 4 between the container body and the lid plate is left open without adhesive, and after the contents are filled, the container is adhered with an adhesive or a sheet seal. B and C show the state after heating.

After cooking, when the lid plate 2 is opened with the zipper 3, it can be used as tableware in the shape shown in FIG. 1D.

(Effect of the invention) According to this technical means, the capacity can be varied between an extended state, that is, an expanded state, and a contracted state, that is, a folded state, using the bellows of the container body, so that the capacity can be varied according to changes in the volume of food. .

Moreover, after cooking, the lid plate can be used as a tableware by opening the lid plate using a zipper or other unsealing function installed on the lid plate.

[Brief explanation of drawings]

Figures 1A, 1B, and 1C show the state of the container before heating and the state of the container after heating, and 2 shows the state with the zipper opened after heating. FIG. 2 shows a sectional view of the bellows portion when it is contracted. Figure 3 shows a developed view of the bellows section. 1... Container body, 2... Lid plate, 3... Zipper, 4... Adhesive portion between container body and lid plate, 5... Non-adhesive portion between container body and lid plate.

Claims (1)

[Scope of utility model registration request] A circular lid plate is bonded to the container body, which has a hemispherical shape with bellows when extended and half a polygon when flattened when viewed from the side. A variable capacity container characterized in that a zipper for opening the container body, which can be formed into a semi-cylindrical shape with the outer periphery of the container body bellows, is provided on a lid plate portion serving as a curved portion.