JP4774182B2 - Container body for instant food containers - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a container body of the container housing the instant food like fried noodles and instant noodles.
[0002]
[Prior art]
This kind of instant food container has a flange projecting outward from the entire circumference of the upper edge of the opening of the container body that contains instant food, and the sheet-like lid is re-peeled by thermal fusion over the entire circumference of the upper surface of the flange. The upper end opening of the container main body is sealed in a sealed manner as possible.
[0003]
[Problems to be solved by the invention]
However, since the width of the adhesive surface between the flange of the container body and the inner surface of the lid is the same over the entire circumference, the adhesive force with the flange of the lid is the same strength over the entire circumference. Therefore, when opening a hot water spout for unwinding instant food during cooking before meals, a portion of the lid is pinched and peeled off. At this time, the lid may be peeled off too much and opened more than necessary. If the lid is opened too much in this way, there is a problem that when the lid is temporarily closed after pouring hot water and until the instant food is unwound, it cannot be sufficiently closed. . In addition, when the instant food is fried noodles, there is a hot water outlet on the container body for discharging hot water after unwinding the fried noodles, and the lid covering the hot water outlet is peeled off when the hot water is cut off. At this time, it was sometimes peeled off too much, and there was a problem that the fried noodles that had been solved by this flowed out together with the hot water from the hot water outlet.
[0004]
An object of the present invention has been made to solve such a problem, when peeling off the adhered lid to the flange of the container body, providing a container body of the container for instant foods which can prevent only the opening of the lid There is to do.
[0005]
[Means for Solving the Problems]
The invention according to claim 1 of the present invention projects outward from the entire circumference of the bottom wall, the peripheral wall raised upward from the entire circumference of the bottom wall, and the upper edge of the upper end opening of the peripheral wall. A container body for an instant food container, wherein a sheet-like lid that closes the upper end opening is removably bonded to the upper surface of the flange. A step portion is formed on the inner periphery of the intermediate portion in the depth direction of the peripheral wall, and an opening size of the upper end opening portion above the step portion is larger than an inner diameter of the lower portion from the step portion. A part of the flange in the circumferential direction is formed into a wide flange whose upper surface width is wider than the width of the upper surface of the flange in another part of the flange. So that the adhesive strength is stronger than the adhesive strength of the lid of the narrow flange in other places Are formed, the width of the stepped portion continuous to the opening on the edge of the inner periphery of the narrow flange, is wider than the width of the stepped portion continuous to the opening on the edge of the inner periphery of the wide flange It has the characteristics in that.
[0006]
[0007]
[0008]
[0009]
[0010]
[Action]
According to the container body of claim 1 instant food container according, the adhesion of the lid against the flange of the container body, and strongly in the region of the wide flange, since the weakened in the region of the narrow flange, pour hot water Or when removing the lid from the narrow flange during hot water cutting, it can be easily peeled off, but the adhesive force with the lid is stronger when applied to the area of the wide flange. Cannot be peeled off, so that the opening of the lid beyond the narrow flange region is prevented. As a result, the lid can be reliably opened in the opening range necessary for pouring or draining, and excessive opening can be prevented.
[0011]
Et al is, the width the width of the step portion is continuous with the opening on the edge of the inner periphery of the narrow flanges, it is formed wider than the width of the step portion continuous to the opening on the edge of the inner periphery of the wide flange, the wide The stepped portion increases the mechanical strength of the narrow flange and the upper edge of the opening on the inner periphery, and can sufficiently counteract the force acting on the region of the narrow flange when the lid is peeled off. Since it can prevent that the area | region part of a flange deform | transforms, the peeling difficulty accompanying the deformation | transformation disappears and it can peel easily.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
A preferred embodiment of the present invention will be described with reference to the drawings. 1 is a plan view of a container body of an instant food container, FIG. 2 is a sectional view taken along line AA in FIG. 1, FIG. 3 is a sectional view taken along line BB in FIG. 1, and FIG. FIG. 5 is a cross-sectional view taken along the line DD in FIG.
[0013]
As shown in FIGS. 1 to 3, the instant food container according to the present invention includes an upper open container body 1 and a sheet-like lid 2. The container body 1 is formed by molding a foamed resin material such as foamed polystyrene, a non-foamed resin material, or a paper material. In the illustrated embodiment, the container body 1 is molded into a flat rectangular bowl shape. The container body 1 in the illustrated example is formed in a flat rectangular bowl shape having a rectangular bottom wall 3 and a peripheral wall 5 that is raised upward from the entire circumference of the bottom wall 3. A step portion 7 is attached to the inner periphery of the intermediate portion in the depth direction of the peripheral wall 5, and the size of the upper end opening above the step portion 7 is lower than the step portion 7 so that the instant food 17 can be easily fitted. The diameter is larger than the inner diameter of the portion. A flange 6 is integrally formed to project outward from the entire periphery of the upper edge 5a of the opening of the peripheral wall 5 of the container body 1. The outer peripheral edge 60 of the flange 6 is formed in a shape bent downward.
[0014]
Of the four sides of the flange 6, two adjacent sides are formed on the wide flanges 6a and 6a having a wide upper surface, while the other two adjacent sides are on the upper surface of the majority. The narrow flanges 6b and 6b having a width narrower than the upper surface width of the wide flange 6a are formed, and the remaining portions on the two adjacent sides are formed in the wide flange 6a continuous to the wide flange 6a. For example, the width of the wide flange 6a is about 14 mm, and the width of the narrow flange 6b is about 10 mm. The narrow flange 6b is useful for forming an opening for the pouring spout by the cooperative action with the lid 2.
[0015]
As shown in FIG. 1, the outer peripheral edge 61a of the wide flange 6a and the outer peripheral edge 61b of the narrow flange 6b are formed so as to be aligned on the same line, but the opening upper edge 62a on the inner periphery of the wide flange 6a is wide. It protrudes inward from the opening upper edge 62b on the inner periphery of the narrow flange 6b, and the opening upper edge 62a and the opening upper edge 62b are connected via a stepped portion 62c. The step portion 7a connected to the opening upper edge portion 62a on the inner periphery of the wide flange 6a is formed as a narrow step portion that is narrow enough to protrude inward, and the opening on the inner periphery of the narrow flange 6b. The step portion 7b connected to the upper edge portion 62b is formed wider than the narrow width step portion 7a.
[0016]
A corner portion where the wide flanges 6a, 6a on the two sides of the flange 6 intersect is projected outward from the upper edge 5a of the opening, and the corner portion is formed in the narrow flange 6b, and the inside of the narrow flange 6b A hot water drainage portion 8 is formed. As shown in FIGS. 1, 2, and 5, the hot water cut-out portion 8 includes a ridge portion 9 having the same height as the upper surfaces of the wide flange 6 a and the narrow flange 6 b, and hot water cut-off portions located on both sides of the ridge portion 9. The hot water cutting grooves 10 and 10 are formed lower than the upper surfaces of the wide flange 6a and the narrow flange 6b. The inner end portion of the hot water cut groove 10 is formed so as to communicate with the inside of the container body 1, and the outer end portion is formed so as to be blocked inside the upper surface of the narrow flange 6 b and is hermetically bonded by the lid 2. It is like that. In addition, the stepped portion 7 is in a lost state inside the hot water cutout portion 8.
[0017]
On the other hand, as shown in FIG. 2, the lid 2 has a printed layer 14 formed on the surface of a base 13 made of paper or synthetic resin, and a waterproof layer 15 made of aluminum foil or silica vapor deposition on the back of the base 13. A flexible laminated sheet obtained by sequentially laminating the heat-sealable resin layer 16 is formed into a rectangular sheet having a size that closes the upper end opening of the container body 1.
[0018]
The container body 1 configured as described above contains, for example, fried noodles as the instant food 17, and a bag of fried noodle sauce, a bag sprinkle 18 and the like are attached to the instant food 17. Thereafter, the lid 2 is horizontally placed on the entire upper surface of the flange 6 of the container body 1, and a portion corresponding to the upper portion of the flange of the lid 2 is heated and pressed against the flange 6 by a heating press. As a result, the lid 2 is heat-sealed over the entire circumference of the upper surface of the flange 6 through the heat-sealable resin layer 16 so that the lid 2 can be peeled off again, and the upper opening of the container body 1 is sealed in a sealed manner.
[0019]
When the lid 2 is heat-sealed, the heating press pressurizes the entire outer peripheral area of the upper surface of the lid 2 with uniform pressure from above, so that the width of the upper surface of the wide flange 6a is wide and the bonding area is wide. Adhering stronger than the upper surface of the narrow flange 6b, there is a difference in adhesive strength between the adhesive strength of the wide flange 6a and the adhesive strength of the narrow flange 6b, and the former wide flange 6a is strongly bonded, In the latter narrow flange 6b, the adhesive strength is weaker than that.
[0020]
Therefore, prior to pouring hot water for unwinding the instant food 17 into the interior of the container body 1 before cooking, a part of the outer peripheral edge of the lid 2 corresponding to the upper portion of the narrow flange 6b is picked and used as a starting point. Although the pouring spout is opened by peeling off, since the adhesive force with the lid 2 is strong at the wide flange 6a at this time, in order to peel off the lid 2 on the wide flange 6a, A force stronger than the peeling force is required. For this reason, it is suppressed that the lid | cover 2 opens beyond the boundary part of the narrow flange 6b and the wide flange 6a, and it can prevent opening too much more than necessary.
[0021]
Further, since the stepped portion 7b below the narrow flange 6b has a wide cross-sectional shape, the mechanical strength of the narrow flange 6b and the opening upper edge portion 62b can be enhanced. The narrow flange 6b is not deformed by a strong tensile force applied when it is peeled off from the flange 6b, whereby the lid 2 can be easily peeled off from the narrow flange 6b.
[0022]
From the hot water pouring spout thus opened, a bag of fried noodles and a bag sprinkle 18 are taken out, and then hot water is poured. After pouring hot water, the hot water spout is temporarily closed with the lid 2 until the instant food 17 is unwound, but at this time, the lid 2 is opened by a predetermined opening amount without being opened too much, The hot water spout can be easily and sufficiently closed.
[0023]
After the instant food 17 is unwound, the hot water cup 8 is opened by pinching and peeling off a part of the outer peripheral edge of the lid 2 corresponding to the upper part of the hot water cup 8. Since it is easy to peel off from the flange 6b and the wide flanges 6a and 6a have a strong adhesive force with the lid 2, it does not open beyond the boundary between the narrow flange 6b and the wide flange 6a. The outer end portion of the groove 10 can be opened and a predetermined opening amount covering the upper portion of the inner end portion can be opened. Therefore, it is possible to prevent the instant food 17 unraveled at the time of hot water from flowing out from the hot water groove 10 together with hot water.
[0024]
The container body 1 is not limited to one formed into a flat rectangular shape, and similarly applies to a flat square or other polygonal shape, or a circular or elliptical shape as shown in FIG. it can. In the above-described embodiment, the case where the instant food is one that requires hot water drainage such as fried noodles has been described. However, in the case of instant food that does not require hot water drainage, it is not necessary to provide the hot water cut portion 8 in the container body 1. Needless to say. As an adhesive means for the lid 2, it is possible to use an adhesive having food safety instead of the heat fusion of the above embodiment.
[0025]
【The invention's effect】
According to the present invention, the adhesive strength of the wide flange of the container body to the lid is stronger than the adhesive strength of the narrow flange. There is an advantage that it can be opened.
[Brief description of the drawings]
FIG. 1 is a plan view of a container body of an instant food container.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a cross-sectional view taken along line BB in FIG.
4 is a cross-sectional view taken along line CC in FIG. 1. FIG.
FIG. 5 is a cross-sectional view taken along the line DD in FIG.
FIG. 6 is a plan view corresponding to FIG. 1 showing another embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container body 2 Lid 3 Bottom wall 5 Perimeter wall 5a Opening upper edge 6 Flange 6a Wide flange 6b Narrow flange 62a, 62b Opening upper edge part 7 Step part 7a Narrow step part 7b Wide step part

Claims (1)

A bottom wall, a peripheral wall raised upward from the entire circumference of the bottom wall, and a flange projecting outward from the entire circumference of the upper edge of the upper end opening of the peripheral wall so as to be open upward A container body of an instant food container formed and removably bonded to the upper surface of the flange so as to close the upper end opening. The intermediate body in the depth direction of the peripheral wall A step is formed on the inner periphery of the portion, and the opening size of the upper end opening above the step is larger than the inner diameter of the lower portion from the step, and the circumferential direction of the flange A part of the flange is formed in a wide flange whose upper surface width is wider than the width of the upper surface of the flange in the other part that is continuous with the upper surface, and the adhesive force of the wide flange to the lid is narrow flange in the other part lid is configured so as to be stronger than the adhesive force between the narrow furan For instant food width of the stepped portion continuous to the opening on the edge of the inner periphery of the can, characterized in that it is wider than the width of the stepped portion continuous to the opening on the edge of the inner periphery of the wide flange The container body of the container .

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