JP3455508B2 - Packaging rice balls and packaging rice packaging method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging rice ball packaged by a packaging sheet formed by sandwiching a sheet-shaped food product between an outer film and an inner film, and a packaging method thereof.

[0002]

2. Description of the Related Art To package triangular rice ball rice with a packaging sheet constituted by sandwiching a sheet-shaped food between an outer film and an inner film, as shown in FIG.
(1) is folded in two with a triangular rice ball rice (7) sandwiched between them, one end and both sides of the packaging sheet (1) are overlapped on both ends of the sheet, and the overlapping portion is folded on the triangular surface of the triangular rice ball rice. The label (6) is attached across the folded end and the film on the triangular surface.

Packaging To unwrap the triangular rice ball, the intermittent cuts (2) made in the widthwise central portion of the outer film (2) are used.
1a), tear in the longitudinal direction at the separable portion (21) with a cut tape or the like, and pull out the inner film and the outer film while leaving the sheet-shaped food. The sheet food is directly covered with rice ball.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
You have to fold the wrapping sheet three times on the rice ball,
In addition, the film ears protruding from the three corners of the rice ball
In order to prevent the inflow of moisture from (14) and the entry of foreign matter,
By the heat welding process which is different from the sheet folding process, the ears
(14) needs to be sealed, which is troublesome. Also, the final folded end of the packaging sheet (1) must be labeled, which increases the number of steps. Furthermore, the triangular rice ball rice (7) may be wrapped in a loose packaging sheet,
In this case, the aesthetics are spoiled and the commercial value is lost. The present invention clarifies a packaging rice ball and a packaging method of packaging rice ball that solve the above-mentioned problems.

[Means for solving the problem]

The packaging method of a packaging rice ball of the present invention comprises an outer film (2) which is heat-shrinkable and has a separable portion (21) which is separable in the longitudinal direction at a substantially central portion in the width direction, A sheet-like food product (4) is formed between two film pieces (51) (51) and an inner film (5) formed by overlapping opposite sides of the outer film (2) at approximately the center in the width direction. Wrapping sheet composed by sandwiching
Fold (1) so as to cover both triangular surfaces of the triangular rice ball rice (7), and the packaging sheet (1) is placed outside the triangular rice ball rice (7).
Both ends of the packaging sheet (1) are overlapped, the overlapping portion of the packaging sheet (1) is heat-welded along the outer circumference of the triangular rice ball rice (7), and the outer portion of the welding portion is divided, and then the triangular rice ball rice (7) is separated. The whole wrapped wrapping sheet is heated to shrink the outer film (2) and wrap the triangular rice ball rice (7) so as to be tightened by the wrapping sheet.

The packaging rice ball of the present invention is a heat-shrinkable, severable portion which can be longitudinally split at a substantially central portion in the width direction.
An outer film (2) having (21) and two film pieces
(51) A sheet-shaped food product (4) is sandwiched between (51) and (51) an inner film (5) formed by overlapping opposite sides at a substantially central portion of the outer film (2) in the width direction. The wrapping sheet (1) is folded so that both sides of the wrapping sheet (1) cover both triangular surfaces of the triangular rice ball rice (7), and the wrapping sheet (1) is placed outside the triangular rice ball rice (7). Both ends overlap and the packaging sheet
The overlapping portion of (1) is heat-welded along the outer circumference of the triangular rice ball rice (7), and the outer sheet (2) is heat-shrinked to cause a packaging sheet.
Wrap the triangular rice ball rice (7) with (1).

[0007]

[Operation and effect] Since the packaging sheet only needs to be bent once with the triangular rice ball rice (7) sandwiched at the substantially central portion in the length direction, the folding process of the sheet can be simplified. Packaging sheet
Since the overlapping portion of (1) is heat-welded and sealed along the outer periphery of the triangular rice ball rice (7), it is possible to save the labor of heat-sealing the three tops of the packaging rice ball in a separate process as in the conventional case. or,
Triangular rice ball rice (7) in order to heat the entire packaging sheet wrapping the triangular rice ball rice (7) to shrink the outer film (2)
Is packaged so as to be tightened by the packaging sheet, and the packaging sheet is not loosened and can be packaged in a good appearance. Further, it is not necessary to label the final folded end of the packaging sheet as in the conventional case, and the labeling step can be omitted.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION As shown in FIGS. 1, 2 and 3, a packaging sheet (1) comprises an intermediate film (3) and a sheet-shaped food product between an outer film (2) and an inner film (5). (4) is sandwiched. The outer film (2) has a rectangular shape with a length of about 225 mm and a width of about 145 mm. The outer film (2) is provided with a cuttable portion (21) at a substantially central portion in the width direction by making intermittent cuts (21a) called so-called perforations over the entire length in the longitudinal direction.

The inner film (5) is formed by laminating two substantially rectangular film pieces (51) (51) of substantially the same shape, with their inner edges along the longitudinal direction being overlapped with a width of 10 to 15 mm. The length L1 of the outer film (2) is equal to the length L2 of the outer film (2), and the width W1 is 20 to 3 more than the width W2 of the outer film (2).
It is formed 0 mm smaller.

The sheet-like food (4) is sheet-like laver (4a) in the embodiment, and is formed into a substantially rhombic shape by cutting four corners of a rectangular laver slightly smaller than the inner film (5). There is.

The intermediate film (3) has substantially the same shape as one film piece (51) of the inner film (5), and the outer film (2).
Between the outer film (2) and the inner film (5), and one side edge of the outer film (2) between the outer film (2) and the sheet-shaped food (4) is overlapped on the side edge of the outer film (2) and the inner film (5). The internal cut (21a) from the inside of the film. The intermediate film (3) prevents invasion of outside air from the intermittent cuts (21a) of the outer film (2) to prevent the sheet-like seaweed (4a) from getting damp.

As shown in FIG. 2, the wrapping sheet (1) is formed by aligning the width centers of the outer film (2) and the inner film (5).
Except for the overlapping portions of the film pieces (51) and (51) constituting (5), the outer peripheral edge of the inner film (5) is formed into a thin line shape on the outer film (2) with the intermediate film (3) sandwiched therebetween. Heat weld (11).

As shown in FIG. 4, a triangular rice ball (7) is placed on the inner film (5) of the packaging sheet (1), and the packaging sheet (1) is folded at the center in the longitudinal direction to form a triangular rice ball. food
Cover both triangular surfaces of (7) and sandwich them with the heat-welding tool (8) from above and below.

The heat welding jig (8) is composed of a pair of pressing dies (81) (81) sandwiching the triangular rice ball rice (7).
Has a recess (82) slightly larger than the contour of the triangular rice ball rice (7) and slightly deeper than 1/2 of the thickness of the triangular rice ball rice (7). ) Of the outer peripheral wall (83) is a fusing edge (84), and the pressing die (81) has a built-in heater (not shown) for heating the fusing edge (84). . Both pressing dies (81) (81) are arranged opposite to each other with their phases aligned, and are arranged so that they can approach and separate relatively by a driving device (not shown).

As described above, the triangular rice ball rice (7) sandwiched between the half-folded packaging sheets (1) is housed in the recess (82) of the lower pressing die (81), and the upper and lower pressing die (81) are accommodated. Close (81). As shown in FIG. 5, the unnecessary portions (12) and (12) of the packaging sheet (1) protruding from the pressing dies (81) and (81) are melted by the pressing dies (81) and (81) at the same time as welding. Sheet-shaped seaweed of packaging sheet (1)
Since (4a) is formed into a substantially rhombic shape by cutting the corners so that it does not touch the portion to be welded, there is no problem with the welding and fusing of the packaging sheet (1). As described above, the free folding end of the packaging sheet (1) is heat-sealed and sealed along the contour of the triangular rice ball rice (7) by the fusing cutting edge (84) of the pressing die (81) (81). In addition, the unnecessary portions (12) and (12) of the packaging sheet are separated. Next, the wrapped triangular rice ball rice (7) is taken out from the pressing molds (81) (81), and the entire packaging sheet is heated to heat-shrink the outer film (2) of the sheet, thereby completing the packaging rice ball.

However, the outer film (2) has intermittent cuts (21a) at substantially the center in the width direction over the entire length in the longitudinal direction.
Since the inner film (5) is divided into two parts in advance corresponding to the cuts (21), when the left and right corners of the packaging rice ball sandwiching the cuts (21a) are picked and pulled outward, the film is interrupted. The outer film (2) is torn from the specific notch (21a) and is separated left and right. Both the film pieces (51) and (51) of the inner film (5) and the intermediate film (3) are separated from the triangular rice ball rice (7) together with the divided film pieces of the outer film (2). Only the sheet-shaped seaweed (4a) remains directly on the triangular rice ball rice (7). As described above, the packaging can be unwound by one-touch operation of tearing the intermittent cuts (21a) of the packaging triangular rice ball.

When packaging the triangular rice ball rice (7), the packaging sheet (1) is a triangular rice ball rice at a substantially central portion in the length direction.
Since it only needs to be folded once across the (7), the packaging sheet (1)
The folding process of can be simplified. Since the overlapping portion of the packaging sheet (1) is heat-welded and sealed along the outer periphery of the triangular rice ball rice (7), it is possible to save the labor of heat-sealing the three top portions of the packaging rice ball in a separate process as in the conventional case. Also, heat the entire packaging sheet that wrapped the triangular rice ball rice (7) to the outer film.
In order to shrink (2), the triangular rice ball rice (7) is packaged so as to be tightened by the packaging sheet, and the packaging sheet is not loosened and can be packaged in a good appearance.

Further, it is not necessary to label the final folded end of the packaging sheet as in the conventional case, and the labeling step can be omitted. In the packaging rice ball, the overlapping part of the folded two-folded wrapping sheet (1) including the three tops of the rice ball is completely sealed, so there is little risk of foreign matter being mixed in, and if it is mixed in, traces of the film will remain. Therefore, the danger of eating can be avoided.

The severable portion (21) of the outer film (2) has a structure in which the intermittent cuts (21a) are opened over the entire length of the film, as shown in FIG. 7, in the longitudinal direction of the film. It is also possible to use a directional film that easily tears, and to make intermittent cuts (21b) short in the longitudinal direction of the film only in the widthwise and longitudinal central portions of the film. Also, the intermittent cuts (21a) and (21b) may not be penetrated to the front and back of the outer film (2), but may be cut in the middle of the thickness of the film, leaving the thin part connected. Yes, in this case
Since the outside air does not enter through the intermittent cuts (21a) and (21b), the intermediate film (3) can be omitted.

The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope of the claims.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a packaging sheet.

FIG. 2 is a perspective view in which a part of the packaging sheet is cut away.

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is an explanatory view of a procedure for welding a packaging sheet covered with triangular rice ball rice.

FIG. 5 is an explanatory diagram of a packaging procedure.

FIG. 6 is a sectional view taken along line 5B-B.

FIG. 7 is a perspective view of another embodiment of the packaging rice ball.

FIG. 8 is a perspective view showing the end of the first stage of the conventional packaging procedure.

FIG. 9 is a perspective view showing the end of the second stage of the conventional packaging procedure.

[Explanation of symbols]

(1) Packaging sheet (2) Outer film (21) Dividable part (3) Intermediate film (4) Sheet food (5) Inner film (51) Film piece (8) Heat welding tool (81) Press type

─────────────────────────────────────────────────── --Continued from the front page (56) References JP 61-187760 (JP, A) JP 7-274869 (JP, A) JP 2000-125790 (JP, A) JP 8-214801 (JP, A) JP-A-4-117249 (JP, A) JP-A-61-149057 (JP, A) JP-A-48-68757 (JP, A) JP-B-53-124638 (JP, B1) Patent 3058834 (JP, B2) (58) Fields investigated (Int.Cl. ⁷ , DB name) B65D 85/50 A23L 1/10 B65B 11/48 B65B 25/06

Claims (2)

(57) [Claims] 1. An outer film (2) which is heat-shrinkable and has a severable part (21) which can be severed in the longitudinal direction at a substantially central part in the width direction, and two film pieces (51). (51) the outer film
A triangle-shaped rice ball is used to form a packaging sheet (1) having a sheet-like food product (4) sandwiched between it and an inner film (5) formed by overlapping opposite sides at approximately the center in the width direction of (2). The packaging sheet (1) is folded so as to cover both triangular surfaces of the rice (7), and both ends of the packaging sheet (1) are overlapped on the outside of the triangular rice ball rice (7) to form the packaging sheet.
The overlapping part of (1) is heat-welded along the outer periphery of the triangular rice ball rice (7), the outer part of the welded part is divided, and then the entire packaging sheet wrapped with the triangular rice ball rice (7) is heated. A packaging method for a packaging rice ball, in which the outer film (2) is shrunk and the triangular rice ball rice (7) is wrapped with a packaging sheet. 2. An outer film (2) which is heat-shrinkable and has a severable part (21) which is severable in the longitudinal direction at a substantially central part in the width direction, and two film pieces (51). (51) the outer film
A packaging sheet (1) constituted by sandwiching a sheet-shaped food product (4) between an inner film (5) formed by overlapping opposite sides at a substantially central portion in the width direction of (2), Both sides of the sheet (1) are folded so as to cover both triangular surfaces of the triangular rice ball rice (7), and both ends of the packaging sheet (1) are overlapped with each other on the outside of the triangular rice ball rice (7). The overlapping part of 1) is heat-welded along the outer circumference of the triangular rice ball rice (7), and the outer film
Triangular rice ball rice with packaging sheet (1) due to heat shrinkage of (2)
Wrapped rice ball wrapped around (7).