JP2007330152A - Package-attached molded cooked-rice food and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a package-attached molded cooked-rice food formed so that welding in packaging is ensured. <P>SOLUTION: The package-attached molded cooked-rice food is formed as follows: folding a sheet body 1 provided with a bag part for housing a sheet-like food therein through superimposing backside films 13, 14 on a face side film 10 while bing in contact with either one face of the front face or the back face of a molded cooked rice food R, into a U-shape to form a front face part (A), a bottom gusset part B and a back face part C of a package body while the molded cooked-rice food is wrapped with the sheet body; folding the surplus parts of the sheet body at the front face part, the bottom gusset part and the back face part each protruding from the right and left sides of the molded cooked-rice food toward the side of the food so as to be superimposed; and making a through hole 5 passing through the sheet body at a part corresponding to a predetermined heat-seal part where the surplus part of the front face part (A) (the back face part B) and the surplus part of the bottom gusset part C of the folded sheet body are simultaneously superimposed on each other, and not exposed outside when the surplus parts are superimposed on each other, when forming right and left side gusset parts D of the package body through fixing the superimposed parts to each other via heat seal to make a rectangular package body into a bag with the upper side open. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a shaped cooked rice food such as a rice ball, and more particularly, to a shaped cooked cooked rice food with packaging.

  As shown in FIGS. 16 and 17, in order to accommodate a sheet-like food inside by superposing a back film made of a pair of film pieces divided into two in a short direction on a rectangular front film provided with a dividing means over the entire length The front and rear surfaces of the formed cooked rice food are made of a package body made by a sheet body T in which a part of the front film and the back film are joined so as to constitute a bag portion of the bag, and the molded cooked rice food R packaged therein. By folding the sheet body into a U-shape with one surface in contact, the front portion A, bottom ridge portion C, and back portion B of the package are formed while wrapping the formed cooked rice food with the sheet body, and further molded The surplus portions A1, B1, and C1 of the front, bottom ridge, and back portions of the sheet body that protrudes to the left and right of the cooked rice food are folded and polymerized on the shaped cooked rice food side, and the superposed portions are fixed to each other by heat seals H and H. Packaging with molded boiled rice food bag making a rectangular package having an open top to form a side gusset portions of the left and right of the package is known from the (Patent Documents 1 and 2).

JP 2004-248637 A JP 2005-289484 A

  The above-mentioned packaged cooked cooked rice food has an effect of efficiently producing molded cooked rice food packaged in a cuboid package having a good appearance, but as shown in FIG. In the lower part of the left and right side flanges of the body, the surplus parts A1, B1, C1 of the front part, the bottom part, and the back part of the sheet body that protrudes to the left and right of the formed cooked rice food to form the side part are formed. As a result of folding and polymerizing on the side, the sheet body T is tripled at that point (symbol X in the figure), and it is in a state where six films are conveniently overlapped, and it is difficult to weld them simultaneously by heat sealing. Caused the problem.

As a result, the following problems occur in the prior art.
(1) Realizing reliable welding by heat sealing took a long time and the manufacturing cycle became longer.
(2) For the same reason, the heat seal temperature had to be set higher.
(3) As a result of the heat seal temperature rising, the appearance of the heat seal portion was not clean, and there was a risk of reducing the merchantability of the packaged cooked cooked rice food.
(4) Since it is difficult to weld by heat sealing, the thickness of packaging materials and the range of choices of materials are limited, which has become a bottleneck in realizing molded cooked rice foods with high design.

  The present invention was created for the purpose of providing a packaged cooked cooked rice food that solves the above-mentioned problems, and is a pair of film pieces divided into two in the short-side direction on a front-side film provided with a dividing means over the entire length. A packaging body made by a sheet body in which a front side film and a part of the back side film are joined so as to constitute a bag portion for containing a sheet-like food inside, and a back side film made of The front part of the package while wrapping the shaped cooked rice food with the sheet body by folding the sheet body into a U shape with the front and back surfaces of the shaped cooked rice food in contact with each other. The bottom part and the back part are formed, and the front part, the bottom part, and the surplus part of the sheet part that protrudes from the left and right sides of the shaped cooked rice food are folded and polymerized to the shaped cooked food side, and the superposed part is formed. In the formed rice food with packaging for forming a rectangular parallelepiped packaging body that is open on the upper side by forming the left and right side flanges of the packaging body by fixing them together with a tossier, and the surplus portion of the front portion of the folded sheet body, Make the heat seal scheduled part where the surplus part of the bottom collar part overlaps at the same time and the surplus part of the back part and the surplus part of the bottom collar part overlap at the same time, and penetrate the sheet body to the part that is not exposed to the outside when it overlaps One or a plurality of through holes are provided.

  In addition, as a second invention, a rectangular front side film provided with a dividing means over the entire length is overlapped with a back side film made up of a pair of film pieces divided into two in the short direction, and a sheet-like food is contained inside. It consists of a package body made by a sheet body in which a part of the front side film and the back side film are joined so as to constitute a bag part, and a formed cooked rice food packaged in this, and the sheet body is placed on the conveyor belt By transporting to the packaging position with the shaped cooked rice food and folding the sheet body into a U shape with the front and back surfaces of the shaped cooked rice food in contact with each other, Form the front part, bottom bowl part, back part, and also fold the front part, bottom bowl part, and back part of the sheet body that protrudes to the left and right of the shaped cooked rice food on the molded cooked food side, and polymerize it. The In the manufacturing method of packaged cooked cooked rice food for forming left and right side flanges of the packaging body and forming a rectangular parallelepiped packaging body having an upper opening by fixing to each other by a sheet seal, the front portion of the folded sheet body A sheet body in a portion where the surplus portion and the surplus portion of the bottom flange portion overlap at the same time and the heat seal scheduled portion where the surplus portion of the back surface portion and the surplus portion of the bottom flange portion overlap at the same time and are not exposed to the outside when overlapped The sheet belt and the conveying belt are prevented from being displaced by providing a through hole penetrating the sheet member and providing a locking protrusion that can be inserted into the through hole on the conveying belt that conveys the sheet member. A method for producing a packaged cooked cooked rice food is also disclosed.

  According to the present invention, the heat seal scheduled portion where the front portion or the back portion and the bottom flange portion in the surplus portion of the folded sheet body overlap at the same time has six layers of the film by the triple sheet member. Even if they are overlapped, a through hole that penetrates the sheet body is provided in the second (third layer, fourth layer) portion (the portion that is not exposed to the outside) located in the middle when overlapping. In the penetrating portion, the first (second layer) and third (fifth layer) films are directly welded, and the number of overlapped films is reduced to substantially four (FIG. 8 and FIG. 8). 9), welding by heat sealing becomes easy.

As a result, the present invention has the following effects.
(1) Reliable welding by heat sealing is possible in a short time, and the manufacturing cycle can be shortened.
(2) It is possible to lower the heat seal temperature for the same reason.
(3) As a result of the temperature of the heat seal being lowered, the appearance of the heat seal portion is more beautiful than when the temperature is high, and the merchantability of the packaged cooked cooked rice food can be improved.
(4) Since welding by heat sealing becomes easy, the thickness of the packaging material and the range of choices of materials are expanded, and it becomes possible to realize a molded cooked rice food with packaging having high design properties.

  Further, according to the second invention, it is also possible to obtain a combined effect in which the through holes that cause the above-described action can be used simultaneously as means for preventing the positional deviation between the sheet body and the conveying belt.

  FIG.1 and FIG.2 is a figure which shows the structure of the Example of the sheet | seat body 1 of the molded rice food with packaging of this invention. The sheet body 1 has a structure in which the front film 10 and the back films 13 and 14 are polymerized so as to form a bag portion for containing a sheet-like food therein. The front side film 10 has a dividing means by strip-like cutting for dividing it into two in the short direction. In this embodiment, two narrow cut tapes 15 and 15 fixed to the front film 10 are used as the dividing means. However, as long as the front film 1 can be stripped by being pulled up, Of course, the dividing means is not limited to a cut tape. In addition, here, in order to facilitate tearing at the start of lifting of the dividing means (cut tape), a pair of cuts 16 and 16 are provided on the left and right of the starting position of the dividing means at one end of the front film.

  The back film is a film that contacts the rice ball R at the time of packaging, and is composed of a pair of film pieces 13 and 14 that are divided into two in the short direction to cover the front film 10, and these film pieces are means for dividing the front film. An overlapping portion is formed that partially overlaps at a position located in the area.

  The front-side film 10 and the back-side films 13 and 14 are provided with a welded portion (not shown) on the periphery except for the overlapping portion between the film pieces of the back-side film and are polymerized to accommodate the sheet-like food N therein. The bag part is configured. In this embodiment, nori is assumed as the sheet-like food N, but the sheet-like food is not limited to nori.

  Reference numeral 5 in the figure is a hole which is the gist of the present invention. Details will be described later.

  2 to 7 are diagrams showing an example of the manufacturing process of the packaged molded cooked rice food of the present invention. Here, as the molded cooked rice food R, a triangular rice ball is illustrated. Reference numeral 1 in the figure denotes a sheet body, and the regions A and B constituting the front and back portions of the packaging body by the broken lines 3 and 3 in a state where the rice ball R is in contact with the back film side are on the front and back surfaces of the rice ball. Similarly, the region C constituting the bottom bowl is bent so as to be in close contact with the bottom surface of the rice ball, and the portions protruding from the left and right sides of the formed cooked rice food as surplus portions of the above regions A, B, C are It is set as the area | regions D and D which comprise the side collar part of a package by bend | folding to the both-sides wall side. Further, in this case, the regions D constituting the side flanges of the package body, the regions E between the broken lines 3 and 3 and the broken line 2 (the surplus portion of the region C constituting the bottom collar portion of the package body), that is, The surplus part of the area A constituting the front part of the package, the surplus part of the area C constituting the bottom part of the package, the surplus part of the area B constituting the back of the package and the bottom part of the package In the region where the surplus portions of the region C to be formed overlap at the same time, a portion sandwiched between the fold lines 4 and 3 (a triangular portion illustrated in light ink in the drawing) is folded inward as a fold DC (see FIGS. 4 to 6). ). In this case, the fold DC is not exposed to the outside because it is folded inward (see FIGS. 8 and 9).

  Next, the region D, D constituting the side collar portion and the folding region DC are folded inward and the region E superimposed on the back surface thereof overlaps, that is, the surplus portion of the front portion A of the folded sheet body 1 A portion where the surplus portion of the bottom flange portion C overlaps simultaneously and a portion where the surplus portion of the back surface portion B and the excess portion of the bottom flange portion C overlap simultaneously are welded as heat seal portions H and H, respectively, and constitutes the side flange portion. The regions D and D are also welded together as the heat seal portion H1 (see FIG. 6), and a packaging body made of a rectangular parallelepiped opening upward is obtained.

  And the side hook part is formed so that the said broken line protrudes in the package body side by the broken line distribute | arranged to the center of the area | regions D and D which comprise the side collar part of a package body, and it approaches the upper side of both sides of rice ball R (FIG. 7). Finally, the vicinity of the opening is sealed by welding.

  In the above sheet body 1, the hole 5, which is a part that characterizes the present invention, is a portion where the surplus portion of the front portion A and the surplus portion of the bottom collar portion C of the folded sheet body overlap and the surplus portion of the back surface portion B. In addition, the heat seal portions H and H are planned portions where the excess portions of the bottom flange portion C overlap at the same time, and the sheet body is provided through a portion that is not exposed to the outside when overlapped. As shown in FIG. 2, when the sheet body 1 is unfolded, the predetermined portions of the heat seal locations H, H are obliquely formed between the surplus portion of the front portion A (and the back portion B) and the folds DC folded inwardly. Each region sandwiching the fold line 4 in the direction, and the regions D constituting the side flanges of the package, located on the left and right of the center of the region E sandwiched between the fold lines 3 and 3 and the fold line 2. In this case, the portion of the heat seal points H and H that are located on the side of the folding fold DC is the second portion that is not exposed to the outside when the sheet body is tripled. Therefore, the hole 5 is provided in these (refer FIG. 5 and 9).

  FIGS. 10 to 13 show specific examples of the shape of the above-mentioned hole. In FIG. 10, a circular hole 5 is shown, an elliptical hole 51 is shown in FIG. 11, a rectangular hole 52 is shown in FIG. In FIG. 13, a triangular hole 53 is illustrated. In this case, it is desirable that the hole has no corners in order to eliminate the risk of tearing triggered by the hole. Further, when it is assumed that the position of the hole is deviated with respect to the heat sealer due to an error in accuracy when the surplus portion of the front portion A (and the rear portion B) of the sheet body is folded, the deviation is expected. It is also effective to use an elliptical hole 51 whose direction coincides with the oval direction. Further, if the hole 5 is too close to the fold line 4 in the oblique direction between the surplus portion of the front surface A (and the back surface portion B) of the sheet body and the folds DC folded inward, the folds DC are folded along the fold line. Therefore, it is desirable to leave an appropriate space between the broken line. Of course, a plurality of holes 5 may be provided in one place.

  14 and 15 are views showing an embodiment of the second invention. A rectangular front side film provided with dividing means over the entire length is overlapped with a back side film made up of a pair of film pieces divided into two in the short direction, and the front side is configured to form a bag portion for containing sheet-like food inside. It consists of a package body made by a sheet body joined with a part of the film and the backside film and a molded rice food packaged in this, and the sheet body is placed on the conveyor belt until the packaging position with the molded rice food product By transporting and folding the sheet body into a U-shape with the front and back surfaces of the formed cooked rice food in contact with each other, the front, bottom, and back of the package are wrapped while the molded cooked rice food is wrapped by the sheet body In addition, the front, bottom and back portions of the sheet body that protrudes to the left and right of the shaped cooked rice food are folded and polymerized on the shaped cooked food side, and the superposed portions are fixed to each other by heat sealing. Method for producing a packaging with molded boiled rice food bag making the rectangular packaging body right and left to form the side gusset portion of an opening above the package by are known in the patent literature 2, supra.

  In the above case, since the sheet member is merely placed on the conveying belt, there is a possibility that the position shift occurs during the conveying.

  In the second invention, the front part and the surplus part of the bottom collar part of the folded sheet body 1 are overlapped at the same time as in the above invention, and the surplus part of the back part and the surplus part of the bottom collar part simultaneously. A through-hole 5 that penetrates the sheet body is provided in a portion that is not exposed to the outside when it overlaps, as a part to be heat-sealed at the overlapping part, but this through hole is used as a means for preventing positional deviation between the sheet body and the conveyance belt at the same time. It is characterized by using.

  That is, as shown in FIG. 15, the pair of conveying belts 20, 20 that convey the sheet body 1 are provided with locking protrusions 21 that can be inserted into the through holes 5 to prevent the sheet body and the conveying belt from being displaced. As a means.

The disassembled perspective view of the Example of the sheet | seat body in the molded cooked rice food of this invention. FIG. The perspective view which shows a manufacturing process same as the above. The perspective view which shows a manufacturing process same as the above. The perspective view which shows a manufacturing process same as the above. The perspective view which shows a manufacturing process same as the above. The perspective view which shows a manufacturing process same as the above. Same as above, sectional view of the main part Same as above, sectional view of the main part The top view which shows an example of a hole same as the above. The top view which shows the other example of a hole same as the above. The top view which shows the other example of a hole same as the above. The top view which shows the other example of a hole same as the above. The perspective view which shows the manufacturing process in 2nd invention. The perspective view of a conveyance belt same as the above. The perspective view which shows the manufacturing process of the shaping | molding cooked rice food with a prior art. The perspective view which shows a manufacturing process same as the above.

Explanation of symbols

A Front portion of package B Back portion of package C Bottom portion of package D Side portion of package R Molded cooked rice N Sheet food DC Fold 1 1 Sheet body 5 Hole 10 Front side film 13 Back side film 14 Back side Film 15 Strip 16 Clearance

Claims (5)

  The front side film provided with a cutting means over the entire length is overlapped with a back side film made up of a pair of film pieces divided into two in the short direction, and the front side film and the front side film are configured to constitute a bag portion for containing sheet-like food It consists of a package body made by a sheet body joined with a part of the back side film and a shaped cooked rice food packaged on the package body, and the sheet body is copied with the front and back surfaces of the shaped cooked rice food in contact with each other. By folding the shaped cooked rice food in the shape of a sheet, the front part, bottom bowl part, and back part of the package are formed while wrapping the shaped cooked rice food, and the front part and bottom bowl part of the sheet body that protrudes to the left and right of the shaped cooked rice food. A wrapping body having a rectangular parallelepiped shape in which the surplus portion of the back surface is folded and polymerized on the side of the shaped cooked rice food, and the overlapping portions are fixed to each other by heat sealing to form left and right side flanges of the packaging body. In the shaped cooked rice food with packaging, the surplus part of the front part of the folded sheet body and the surplus part of the bottom part overlap at the same time and the surplus part of the back part and the surplus part of the bottom part overlap at the same time. A packaged cooked cooked rice food characterized in that one or a plurality of through-holes penetrating the sheet body are provided in a portion that is not exposed to the outside when overlapped as a portion to be heat sealed.   The packaged cooked cooked rice food according to claim 1, wherein the through hole is circular.   The packaged cooked cooked rice food according to claim 1, wherein the through hole has an elliptical shape.   The packaged cooked cooked rice food according to claim 1, wherein the through-holes are square. A rectangular front side film provided with dividing means over the entire length is overlapped with a back side film made up of a pair of film pieces divided into two in the short direction, and the front side is configured to form a bag portion for containing sheet-like food inside. It consists of a package body made by a sheet body joined with a part of the film and the backside film and a molded rice food packaged in this, and the sheet body is placed on the conveyor belt until the packaging position with the molded rice food product By transporting and folding the sheet body into a U-shape with the front and back surfaces of the formed cooked rice food in contact with each other, the front, bottom, and back of the package are wrapped while the molded cooked rice food is wrapped by the sheet body In addition, the front, bottom and back portions of the sheet body that protrudes to the left and right of the shaped cooked rice food are folded and polymerized on the shaped cooked food side, and the superposed portions are fixed to each other by heat sealing. In the method for producing packaged cooked cooked rice food, the left and right side portions of the package are formed to form a rectangular parallelepiped package that opens upward, and the surplus part and bottom of the front part of the folded sheet body Penetration that penetrates the sheet body to the part that is not exposed to the outside when it overlaps with the part where the surplus part of the collar part overlaps simultaneously and the part where the surplus part of the back surface part and the surplus part of the bottom collar part overlap at the same time Formed cooked rice with packaging, characterized in that a hole is provided and a locking protrusion that can be inserted into the through-hole is provided on a conveying belt that conveys the sheet body, thereby providing a means for preventing positional deviation between the sheet body and the conveying belt. A method for producing food.

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