JP6529930B2 - Packaged body of cooked rice shaped food and packaging method thereof - Google Patents

Description

  The present invention relates to a packaged body of a cooked rice shaped food in which a formed rice cooked food such as a rice ball is sealed in a bag, and a packaging method thereof.

  With regard to the packaging form of rice balls as the formed rice food that is packaged and displayed and sold one by one at convenience stores etc., the rice balls are nowadays made up of rice balls and red rice etc. rolled directly on a part or the whole of rice. Many non-rolled rice ball packages are changed from a package form (see, for example, Patent Document 1) in which the packaging material is tightly packaged on the outer shape of the rice ball to a package form as disclosed in Patent Document 2.

  In the packaging form disclosed in Patent Document 2, a tubular packaging material is formed by polymerizing the ends of the packaging material in a hermitic shape, and the lateral sealing edge which is the polymerization part is the left and right ends on the back side of the bag. Inside the bag so that the longitudinal seal edge intersecting the transverse seal edge is formed to extend longitudinally at both left and right edges of the bag. A sealed package containing rice balls, and such a three-sealed package form is excellent in terms of hygiene by the sealed package, and can have a sense of volume than conventional packages and enhance the commercial value. .

Unexamined-Japanese-Patent No. 10-28541 Patent No. 4277211 gazette

  The package is generally sold in a state where rice balls are erected at the time of display at a store, but in the package form disclosed in Patent Document 2, the transverse seal portion crosses laterally on the back side of the bag. There is a point which is inferior to the appearance as a product. In addition, since the transverse seal crosses the body of the bag, it is only necessary to paste a label after bagging and packaging in order to give a quality indication such as the expiration date of rice balls. May decrease. Furthermore, although the package aids shape retention of the bag with a label, there is a problem that the use of the label increases the cost.

  That is, in view of the problems in the prior art, the present invention has been proposed to suitably solve these problems, and it is possible to improve the appearance and enhance the commercial value, and at the bottom of the bag without assisting with the label. It is an object of the present invention to provide a packaged body of cooked rice shaped food which can ensure the formation of a container and a method of packaging the same.

In order to overcome the above-mentioned problems and to achieve the intended purpose, the package body of the cooked rice shaped food of the invention according to claim 1 of the present application,
A packaged body of cooked rice shaped food, wherein the cooked rice shaped food is sealed in a bag,
A transverse seal formed at the bottom of the bag made of sheet-like packaging material so as to overlap and weld the inner surfaces of the ends of the packaging material so as to match each other and extending to the left and right of the bag;
Longitudinal seal portions formed by overlapping and welding so that the inner surfaces of the packaging materials are aligned on the left and right sides of the bag and extending to the upper and lower sides of the bag;
A fold formed at the left and right ends of the bottom of the bag and recessed inwardly of the bag;
And an opening assisting portion capable of opening the bag by tearing the bag in the left and right direction;
The transverse seal portion is bent at a proximal end on the bottom side to extend along the bottom so as to overlap the bottom of the bag.
The proximal end of the transverse seal portion is such that the position of 1/2 of the widthwise length of the transverse seal portion bent at the proximal end is 1/2 of the thickness of the bag in the front and back direction To one side of the bag,
It is characterized in that on the bag bottom side of the both vertical direction sealing parts, two regions which are welded so as to align the inner surfaces of the packaging material are provided sandwiching the horizontal direction sealing part.
According to the invention as set forth in claim 1, since the transverse seal portion is located on the bottom of the bag to form an overlapping portion of four sheets of packaging material of a predetermined width, the shape retention of the bag bottom displayed upright is enhanced. And the appearance of the product can be made good. In addition, the transverse seal portion overlaps the bottom of the bag and traverses laterally, and the two wrappings overlap on the bottom side of the left and right edges of the bag, and the two wrappings extending upward from the bottom welded two sites are formed in a bag bottom, since longitudinal sealing portion extends a columnar post thereabove, the site to form a bag reinforced portion, of Fukurosoko portion side of the conventional package It becomes a package which shape retention property improved further.

In the invention according to claim 2, the width of the longitudinal sealing portion (20 ) in the bag (12) is set narrower than the width of the transverse sealing portion (16 ) in the bag (12). Do.
According to the invention of claim 2, strengthen the paper packaging material increased shape retention to the width of the transverse seal portion packaging materials is polymerized by a wide, Fukurosoko unit, packaged in the right and left edges of the bag The appearance of the package can be improved by narrowing the width of the longitudinal sealing portion where the material is polymerized .

The invention according to claim 3 is characterized in that the transverse seal portion is bent toward the back side of the bag.
According to the third aspect of the present invention, the appearance of the package can be improved.

The invention according to claim 4 is characterized in that on the back side of the bag, at least in a region where the package information is printed, a quality indicator capable of clearly identifying the package information is provided on the packaging material. Do.
According to the invention as set forth in claim 4, before storage of the formed rice food, packaged information such as date and time such as character information and barcodes by item and date of expiration etc. is packaged in the quality display section of the flat packaging material. It is possible to print directly when printing, and it is possible to prevent the printed package information from being misaligned or distorted. In addition, by directly printing the packaged product information on the quality display unit, it is not necessary to attach a label for displaying the packaged product information and the like, and the cost for the label at a high proportion of the material cost in the package can be reduced. it can. In addition, since the label itself can be unnecessary, it is possible to contribute to resource saving.

The invention according to claim 5 is characterized in that the two portions on the bag bottom side in the vertical direction sealing portion are bonded to the packaging material between the opposing surfaces of the two portions .
According to the fifth aspect of the present invention, since at least two portions are adhered to each other at the bottom of the bag to form an overlapping column to support the bottom of the bag, it is possible to further improve the shape retention of the bottom of the bag.

In the invention according to claim 6, the unsealing assisting portion is a linear incision or a single incision or a plurality formed side by side in one of the vertical direction sealing portions at a position of 1/2 or more of the height of the cooked rice shaped food The notch is a notch having a predetermined shape.
According to the invention as set forth in claim 6, the bag can be easily opened, and when eating the cooked rice food, the upper portion of the bag is cut off and the hand-held eating food is not directly touched through the remaining packaging material. Because you can do it, it is hygienic and your hands will not get dirty.

In order to overcome the above problems and achieve the intended purpose, the method for packaging cooked rice shaped food of the invention according to claim 7 of the present application is:
A packaging method for obtaining a package having a heat-sealable inner surface and sealed with a formed rice food according to the present invention,
The packaged body is covered with a packaging material forming a bag, and the inner surfaces at the ends of the packaging material are stacked and heat sealed so that the inner surfaces thereof are aligned at the bottom of the bag. Forming a lateral seal extending in the left and right direction so that the position of the base end on the side of the bag trunk in the lateral seal is displaced from the center in the front and back direction of the bag to one side;
The base end of the transverse seal portion is bent at the base end from one side to the other side where the base end is displaced from the center in the front and back direction of the bag, and the center portion in the front and back direction of the bag overlaps the bottom surface of the bag trunk portion And let it extend
In the left and right positions sandwiching the cooked rice shaped food, the center in the width direction of the transverse seal part is pushed inward from the bag bottom side, and the packaging material is stacked so that the inner surfaces are aligned at the left and right edges of the bag. Forming a longitudinal seal extending in the vertical direction of the bag by intersecting with the transverse seal by heating and sealing;
In a predetermined range from the bottom of the bag to the top of the vertical sealing portion, the inner surface of the packaging material is overlapped and welded on one side and the other side of the horizontal sealing portion. It is characterized in that each part is formed.
According to the seventh aspect of the present invention, a sealed package of cooked rice shaped food which can improve appearance and secure shape retention can be efficiently produced by a packaging machine such as a horizontal bag-filling machine.

The invention according to claim 8 is characterized in that the packaging material on the top portion side is supported when the center in the width direction of the transverse seal portion is pushed inward in the bag.
According to the invention of claim 8, it is possible to prevent the positional deviation of the packaging material from the transport path and stably push the lateral seal portion.

The invention according to claim 9 is characterized in that the transverse seal portion is bent at the proximal end immediately after the packaging material is heat-sealed.
According to the ninth aspect of the present invention, folding is easy to be achieved by bending the transverse seal portion immediately after heating, and the transverse seal portion can be maintained in a state of being superimposed on the bottom of the bag.

In the invention according to claim 10, when forming at least one of the longitudinal direction sealing portions, the bag is split in the left and right direction at the outer end edge of the longitudinal direction sealing portion to form the unsealing assistance portion which can be opened. It is characterized in that.
According to the invention as set forth in claim 10, since the unsealing assisting portion is formed together with the formation of the vertical direction sealing portion, it is possible to obtain a good package having no positional deviation such as an unsealing notch with respect to the sealing position. .

  According to the present invention, it is possible to improve appearance and secure the shape-retaining property of the bottom of the bag, as well as the packaging of the sealed formed rice shaped food, as well as the freedom of printing such as product information on the packaging material. It is possible to obtain a package which can be increased in degree and a method of packaging the package.

It is a schematic perspective view which shows the package body which concerns on an Example. (a) is a front view of the package which concerns on an Example, (b) is a rear view of the package which concerns on an Example. It is a side view of the packing object concerning an example. It is a schematic perspective view which shows the package which concerns on the example of a change. It is a side view of the package body which concerns on the example of a change shown in FIG. It is a principal part front view of the package which employ | adopted the example of a change of the opening assistance part. It is the schematic illustrated in the case where it packages with the horizontal form-fill-seal machine the packaging method of the cooked rice shaped food which concerns on an Example.

  Next, a package of a cooked rice shaped food product according to the present invention and a method for packaging the same will be described below by way of preferred embodiments with reference to the accompanying drawings. The "front side" and the "back side" of the bag mean the "front side" and the "back side" of the bagged product. In addition, although the formed rice food is exemplified as a triangular rice ball in the embodiment, it is a rice rice wrapped in a round-shaped rice ball, innard skin, or red rice or quince rice formed into a predetermined shape, and other cooked rice It is adopted for food in which rice and the like are formed into a predetermined shape.

  FIG. 1 is a schematic perspective view of a package of cooked rice shaped food according to the embodiment as viewed from the bottom side, wherein the package 10 is a bag 12 made of a sheet-like packaging material such as a transparent film. , A sealed bag filling containing a triangular rice ball 14. As the packaging material, a heat-welding property in which a thermoplastic synthetic resin layer such as polyethylene is laminated on a heat-welding plastic film having a thickness of 30 μm to 50 μm polypropylene or the like as a substrate, Japanese paper, or pseudo-Japanese paper. The sheet material of 30 .mu.m to 50 .mu.m in thickness is preferably used, and the front side of the bag 12 is mainly printed with a trade name and other various patterns, but a plain packaging material is used. It is also good. With regard to the packaging material, one surface facing the rice ball 14 in the bag and constituting the inner surface side of the bag 12 which is the welding surface of the packaging material is the inner surface, the non-welding surface of the packaging material is the outer surface side of the bag 12 The other side to be configured is referred to as the outer surface.

  At the bottom of the bag 12, as shown in FIG. 1, a transverse seal 16 is formed to overlap the bottom of the bag so as to cross in the left-right direction (bag width direction). The transverse seal portion 16 covers the front and back of the rice ball 14 in a U-shape with a sheet-like packaging material, and both ends of the packaging material are in the shape of a joint at the center with respect to the thickness of the bottom when the rice ball 14 is in an upright position. The inner surfaces of the overlapping portions of the tubular packaging material are welded and sealed with a predetermined width by polymerization, and the overlapping portion is heated by sandwiching the overlapping portion, and the overlapping portion accommodates the rice ball 14 and the bottom surface of the bag trunk portion 15 It is formed to extend by a predetermined width. The transverse seal portion 16 is folded along the bottom of the bag trunk portion 15 by being bent toward either one of the front and back of the bag 12 at the extension base (proximal end) 16a. It extends in the form of a band having a predetermined width to the left and right of the bag 12. Further, the extension base 16a of the lateral seal portion 16 is located at a half position (width direction) of the extension length (width direction length) N1 of the lateral seal portion 16 bent at the extension base 16a. Center position of the bag 12 is displaced to either one of the front and back sides of the bag 12 so as to be a half of the thickness K in the front and back direction of the bag 12 (see FIG. 3). In the embodiment, the wrapping material is polymerized in a palm shape so that the extension base 16 a is displaced toward the front side of the bag 12 to form the transverse sealing part 16, and the transverse sealing part 16 is directed to the back side of the pouch 12. It is bent. Thus, the transverse seal portion 16 is preferably bent toward the back side in order to make the appearance of the package 10 better when displaying and selling the rice balls 14, but the extension base 16 a is a bag 12. The transverse direction sealing portion 16 obtained by polymerizing the packaging material in the shape of a convoluted structure at a position close to the back side of the case and heat sealing it may be bent toward the front side of the bag 12.

  Here, the transverse seal portion 16 is composed of a transverse weld portion 17a to which the packaging material polymerized in the transverse seal portion 16 is welded, and a non-welding portion 17b slightly extending outward from the transverse weld portion 17a. The length of extension (polymerization width of the packaging material at the bottom of the bag) N1 from the extension base 16a to the inner edge of the lateral weld 17a is 1/3 to the thickness of the bottom of the bag. It is set to 1/2. In addition, since the thickness of the front and back of the rice ball 14 is generally about 30 mm-40 mm, it is preferable that the extension length N1 of the horizontal direction sealing part 16 is formed in about 10 mm-20 mm. Thereby, the sealing performance of the bag can be sufficiently secured, and the shape retention property can be imparted to the bottom of the bag by the transverse sealing portion 16 having a sufficient welding width. The welding width N2 of the welded portion in the transverse direction sealing portion 16 is preferably about -2 mm to -3 mm of the extension length N1. As for the transverse seal portion 16, the outer non-welded portion 17b polymerized and welded in forming the transverse seal portion 16 is cut away, or the like, and the entire width from the extending base portion 16a to the extending tip is packaged. It may be a lateral welding portion 17a in which the material is welded.

  At each of the left and right end portions of the bag 12, the inner surface of the packaging material is polymerized, and the overlapping edge portion is heated with a predetermined width to weld and seal, thereby forming a vertically oriented sealing portion 20 extending in the vertical direction It is done. The two longitudinal seals 20, 20 intersect the transverse seal 16 on the bag bottom side. That is, since the bag 12 is sealed by the vertical and horizontal seal portions 16, 20 and 20, it is possible to prevent foreign matter from being mixed into the bag. As shown in FIG. 3, each longitudinal seal portion 20 is formed such that the packaging material is polymerized substantially at the center of the thickness K in the front and back direction of the bag 12 in the state where the rice ball 14 is accommodated. Here, a longitudinal seal portion 20 is constituted by a longitudinal weld portion 21a to which the packaging material polymerized in the longitudinal seal portion 20 is welded, and a non-welding portion 21b extending outward from the longitudinal weld portion 21a. An extension length (overlapping width of the packaging material at the left and right edge portions of the bag) M1 from the inner base end on the side of the bag body to be the inner edge of the longitudinal welded portion 21a to the outer end of the non-welded portion 21b; It is set to be shorter than the extension length N1 of the transverse seal portion 16. That is, by making the both longitudinal direction sealing parts 20, 20 narrower than the lateral direction sealing part 16, the appearance of the package 10 can be made by making the vertical direction sealing parts 20, 20 exposed in the upright display state as narrow. While it is possible to improve the shape retention property of the bottom of the bag, it is possible to widen the transverse seal portion 16 located on the bottom of the bag which is not exposed in the display state. The extension length M1 of the longitudinal seal portion 20 is preferably equal to or less than the extension length N1 of the transverse seal portion 16. Further, it is preferable that the extension length M1 of the vertical direction sealing portion 20 be set to about 6 mm to 10 mm, and the welding width M2 of the vertical welded part 21 a be set to about 4 mm to 7 mm.

  As shown in FIGS. 1 and 2, at the bottom of the bag 12, folds 22 are formed respectively on the left and right sides of the rice ball 14 housed in the bag, in which the packaging material is pushed inward from the bag bottom. There is. In each of the folds 22 recessed inward in the bag, the packaging material of the bag bottom is in the bag from the bag bottom side at a central position with respect to the extension length of the transverse seal 16 which is folded along the bag bottom and overlaps by a predetermined width. It is pushed in and formed. Since the central position in the width direction of the transverse seal portion 16 coincides with the central position of the thickness K in the front and back direction of the bag 12, such formation of the folded portion 22 can be favorably performed. As a result, the amount of indentation does not change, the vertical direction sealing portion 20 does not become defective, and the bag 12 is prevented from being distorted and the packaging quality being lowered. Then, the vertical seal portion 20 is formed by pushing the packaging material from the bag bottom portion side, and thereby, when the vertical seal portion 20 is formed, the vertical seal portion 20 is pushed inward and overlapped. Eight sheets of the packaging material are sandwiched and heated by the sealing means, and in the single-sided adhesive packaging material, the inner surfaces to be the welding surface are welded to each other. Here, a film having one side weldability is used as the packaging material, and a portion where the packaging material is pushed in and folded at the bag bottom side of each longitudinal seal portion 20 is a polymerization part separated into two as follows. Is formed.

  As shown in FIG. 3, in the seal overlapping pieces 18a and 18b of the transverse seal part 16 bent by being pushed in at the center in the width direction, the two overlapping parts extend from the center to the left and right, and extend the seal overlap. Overlapped portions 18a and 18b are respectively overlapped to form overlapping portions 20a and 20b having longitudinal welded portions 21a. The both polymerizing portions 20a and 20b extend from the base end T at the center toward the bottom without overlapping as the surfaces of the packaging material become non-welding surfaces, and the lateral direction sealing portion 16 Both branched branched seal pieces 18a and 18b extend from the base end T toward the bottom inward of the respective superposed portions 20a and 20b in an eight-letter shape and extend.

  Thus, at the bottom of the bag 12, a range corresponding to the pressing amount of the packaging material on both sides of the two seal overlapping pieces 18a and 18b of the transverse seal portion 16 (from the bag bottom to the base end T The strength of the bottom of the bag 12 is increased by forming two overlapping portions 20a and 20b in which the inner surfaces of the packaging material are heat-welded in the range, and the shape retention property of the bottom of the bag 12 is enhanced. Can. In addition, the lateral seal portion 16 extends left and right at the center of the front and back of the bottom of the bag, and at the left and right end portions of the bag bottom, the range where the lateral seal portion 16 and the longitudinal seal portions 20 and 20 intersect Since the seal overlapping pieces 18a and 18b and the two overlapping portions 20a and 20b are respectively formed, the stiffness of the bottom of the bag becomes strong, and the shape retention can be ensured without reinforcing the attached material such as a label or the like. be able to.

  As shown in FIG. 4 and FIG. 5, in a portion where the polymerizing faces of the packaging material face when the left and right polymerizing portions 20a and 20b are polymerized, packaging is applied with a part coat agent made of a heat-welding resin. The lower end portion of the longitudinal sealing portion 20 on the bottom side of the bag 12 is made of a packaging material of the seal overlapping pieces 18a and 18b and the overlapping portions 20a and 20b when the longitudinal sealing portion 20 is formed. The part coat agent applied to the polymerizing surfaces which the outer surfaces of the packaging materials overlap with each other is melted by heat by sandwiching with the sealing means in the overlapping state, and the seal polymerizing pieces 18a, 18b and the polymerizing portions 20a, 20b Be glued. As a result, in the height range corresponding to the amount of folding of the folded portion 22 from the bottom of the bag, four sheets of packaging materials consisting of the two overlapping portions 20a and 20b overlap and are integrated by heat bonding. A columnar reinforcing portion is formed in which eight packaging materials including the portion, the seal overlapping pieces 18a and 18b, and the overlapping portions 20a and 20b overlap one another and a second polymerized bonded portion integrated with each other by heat bonding. And, in the rice ball package 10, the vertical direction sealing parts 20 including the columnar reinforcement parts are formed on the left and right of the bag 12, and the vertical direction sealing parts 20 serve as two columns to support the bag bottom part It is possible to make the packaging body 10 of a more favorable nature.

  As shown in FIG. 2A, a product name display 26 such as a product name of a rice ball 14 is printed in advance on the packaging material on the front side of the bag 12 which is the front of the product. The product name display 26 can be provided by attaching a product name label after packaging or packing in a bag, or can correspond to the type of package along with various design patterns by printing means such as a thermal printer in the process of transporting the packaging material in the packaging machine. It is also possible to provide the printed product name by printing.

  The packaging material on the back side of the bag 12 has a quality indication field (quality indication part) 28, and the quality indication field 28 shows the item name, raw material name, manufacturing date, consumption of cooked rice shaped food 14 contained in the bag. Item information (package information) such as time limit, character information such as manufacturer, and bar code is displayed. Such item information is displayed near the bottom of the bag 12 as shown in FIG. 2B, and is attached by printing means such as a thermal printer in the process of transporting the packaging material in the packaging machine. In general, item information is displayed in black or other dark colors, so at least the quality display section 28 has a white background section as a background in consideration of the visibility and identification of characters of the item information. It is preferable to use a light-colored packaging material. That is, by coloring the quality display section 28 which is the area where the item information is printed in white and other light colors, the item information printed in black and other dark colors can be clearly displayed, and the identification is good. It becomes. In addition, item information can be printed at any position by using a packaging material colored in white or other light colors as a whole.

  Here, in the conventional packaging form, the transverse direction seal portion is located on the back side of the bag, and the quality indication label is overlapped and attached thereon, so that it is attached in the conveyance process of the package after packaging. Misalignment of the label position and distortion, which impairs the appearance of the package. In addition, the label may be positioned on the opening line of the bag due to the deviation of the sticking position, which may cause the opening to be hindered. On the other hand, in the packaging form of the embodiment, as described above, the package information can be printed on the package before packaging each time, so the display of the package information is misaligned or distorted, and the appearance is displayed. It can prevent becoming a inferior package. In addition, since the label is not attached, the opening of the bag 12 is not hindered. Furthermore, by printing directly on the packaging material, it is possible to print package information for each item by switching the data of the print information of the thermal printer without preparing different quality indication labels for each item. That is, it is possible to improve the working efficiency by omitting troublesome operations such as securing multiple kinds of quality indication labels corresponding to many items and replacing the quality indication labels at the time of switching of packaging items. In addition, since the quality indication label is not consumed, the running cost becomes unnecessary, resource saving can be achieved, and the packaging form is also environmentally friendly. Furthermore, since the labeling apparatus which requires the arrangement of the packaging machine downstream as compared to the printing means and which requires an expensive and large installation space can be eliminated, the apparatus cost for obtaining the rice ball package 10 can be reduced. Space saving can be achieved. In particular, since the overlapping portion of the film is not located in the quality display column 28, good printing can be performed without causing print defects such as print misalignment at the time of printing by the printing means.

  As shown in FIG. 2, the non-welding portion 21 b at one end edge of the vertical direction sealing portions 20, 20 located on the left and right sides of the bag 12 has a V-shaped notched portion as an unsealing assisting portion A notch (notch) 24 is formed, and is configured such that the bag 12 can be torn open in the left-right direction (transverse direction) with the notch 24 as an opening base point. The opening notch 24 may be a U-shaped, semicircular, trapezoidal or U-shaped or other notch. In addition, it is possible to adopt various types of opening assisting portions that do not impair the sealing performance of the linear or arc-like incisions or the opening tape or the other bag 12. Furthermore, the unsealing assisting portion may be provided on at least one of the left and right vertical direction sealing portions 20, but may be provided on both the vertical direction sealing portions 20 and 20. In addition, it is preferable to apply an opening guidance display 30 (see FIG. 2A) including markings and characters or the like by which the opening start portion can be determined by the opening notch 24 or the like.

  The formation position of the opening notch 24 is provided at a position near the top of the bag 12. Specifically, the cut line L of the bag by the opening notch 24 is, as shown in FIG. 2, an upper portion of the rice ball 14 at a position substantially half the height of the rice ball 14 housed in the bag 12. It is preferable that the position is set to the near side. As a result, in the package which is opened so as to cross the bag 12 with the opening notch 24 as the opening base point, the rice ball 14 whose lower portion is covered with the packaging material can be grasped and eaten, which is hygienic. In addition, the cut line L in the transverse direction of the bag by the opening auxiliary portion is printed in the package information even if it is positioned within the formation range of the quality display column 28 (below the upper end of the quality display column) as in the embodiment. Since the quality indication column 28 attached by the means is only the packaging material and does not overlap with the attached matter such as the label, the hand is not soiled and the opening is not inhibited.

  The cut line L by the opening assisting portion such as the opening notch 24 passes a half or more of the height of the rice ball 14 housed in the bag 12 and causes the upper portion of the rice ball 14 to be lost. It is most preferable to set it in an appropriate position. Thereby, after opening, the head of the rice ball 14 can be exposed and eaten.

  With the package 10 standing, the upper end or left and right of the rice ball 14 housed in the bag 12 is an empty space that can be handled by pinching the bag without touching the rice ball 14 at the time of handling such as lifting the package 10. A location 32 is provided, which functions as a knob. In other words, it is possible to prevent the user from holding down the housed rice ball 14 with the hand during transport from the manufacturer to the retail store, product display at the retail store, etc. The product of the rice ball 14 finished plumply at the time of manufacture It can prevent the value from decreasing. Further, by providing the space 32, the packaging body 10 can be given a voluminous feeling and the commercial value can be enhanced.

  Here, in the embodiment, one (single) opening auxiliary portion (notch 24 for opening) is formed in the vertical direction sealing portion 20, but a plurality of opening auxiliary portions (notches in a predetermined range in the vertical direction sealing portion 20) And notches) can be formed side by side. For example, as shown in FIG. 6, the outer edge of the longitudinal seal portion 20 is a sawtooth-shaped cutting edge in which V-shaped notches are continuous in a row, and any one of them is unsealed. It can also be set as the auxiliary unit 24. In the opening assisting portion, the valley portion of such a sawtooth-shaped continuous whole or a plurality of valley portions within a predetermined range is the opening starting portion, and is opened from any opening starting portion by the consumer's selection. It may be 4 to 6, the same parts as those of the embodiment are indicated by the same reference numerals.

  And the package 10 comprised as mentioned above can be manufactured by the horizontal form-fill-seal machine shown in FIG. That is, in the packaging machine, a strip-shaped film F as a packaging material drawn out from a supply source and formed into a U shape is made cylindrical and the rice ball supplied into the tubular film F by a conveyor (not shown). Are stored at predetermined intervals, and the longitudinal edge of the film F is polymerized while the rice ball 14 accommodated in the cylindrical film F is transported to the downstream side, and the polymerized portion is a seal of the side seal means 36 A transverse seal portion 16 which is heat-sealed by being pinched by a roller and extends in the left-right direction at a position on the bag bottom side of the package 10 is continuously formed in the film F conveyance direction. Also, in the guide route of the film F drawn out from the supply source, the package information is printed by the printing means comprising a thermal printer or the like in the quality display column 28 attached in advance to the area corresponding to the position to be the back of the package 10 It is printed.

  The bending means 41 is provided in the vicinity of the downstream side of the side sealing means 36, and the transverse sealing portion 16 is the back face of the rice ball 14 from the extending base 16a by the bending means 41 immediately after heating by the side sealing means 36. It is formed to be bent downward at the side and to overlap with one side of the tubular film F. The bending means 41 includes a pair of bending rollers arranged to face each other in the tapered surface, and the extending base portion 16a is softened by heat by passing the transverse seal portion 16 immediately after heating between the tapered surfaces. A compromise can be attached to the packaging material. The transverse seal portion 16 bent by the bending means 41 is maintained in a bent state until the longitudinal seal portion 20 is formed by the side guide 42. The folded lateral seal 16 may then be cooled in between to maintain the folded condition. The polymerization height of the longitudinal edge of the cylindrical film F and the heating seal height of the side sealing means 36 are determined when the transverse sealing portion 16 is bent along the bottom of the bag at the extending base portion 16a. The position of 1⁄2 of the extension length N1 is set according to the height of the article from the conveying surface of the rice ball 14 so that the position of 1⁄2 of the height of the article is obtained. Thus, the transverse seal portion 16 bent at the extension base 16 a by the bending means 41 extends in the transport direction at the center of the height direction of the rice ball 14 at one side of the tubular film F. It is formed. The side guides 42 are provided with a pair of guide plates that can adjust the distance in the left-right direction, and both guide plates are separated according to the length (height dimension when displaying) of the rice ball 14 to be transported It is adjusted.

  An end seal means provided with a pair of seal bodies between the respective rice balls 14 supplied at predetermined intervals in the film F at the downstream of transport of the tubular film F on which the transverse direction sealing portion 16 is formed. The film 38 is held by the film 38 and heat-sealed and cut in the direction crossing the film transport direction, whereby the longitudinal direction sealing portions 20 located at the left and right edges of the bag 12 are formed. In addition, one side of the tubular film F on which the transverse seal portion 16 is folded is formed before and after the sandwiching position of the film by the seal body when the longitudinal seal portion 20 is formed by the seal body. The width center of the transverse seal portion 16 extending in a strip direction is pressed against the tip of the pushing means 39 so that one side of the film is pushed inward. In this state, the film F is nipped by the seal body to be sealed and cut, whereby the longitudinal seal portion 20 extending in the vertical direction of the bag 12 is formed to intersect the transverse seal portion 16 and the rice ball 14 is formed. Folded portions 22 recessed inward of the bag are formed at the left and right ends of the housed bag bottom. Then, the overlapping portions 20a and 20b are formed by heat welding two films F in a predetermined range corresponding to the pressing amount of the film from the bottom of the bag toward the top portion in the vertical direction sealing portion 20. At the same time, the package 10 is obtained in which the seal overlapping pieces 18a and 18b of the transverse seal part 16 are located inside the base end T side of both the overlapping parts 20a and 20b. That is, the package 10 of the embodiment can be efficiently manufactured by the horizontal form-fill-seal machine, and the use of the continuous film can reduce the cost of packaging and improve the packaging capacity.

  It is preferable that the other side portion of the tubular film F be supported by the receiving member 40 when forming the folding portion 22 so that the pushing means 39 pushes one side portion of the tubular film F inward. . The receiving member 40 is in contact with the side surface of the film F from the retracted position separated from the film F at one side of the transport path of the cylindrical film F in synchronization with the pushing means 39 pushing the cylindrical film F inward. It moves to the support position to support the other side of the film F and assists in the formation of the fold 22. That is, the tubular film F can be prevented from being displaced from the transport path, and the pushing of the lateral seal portion 16 can be stably performed. The receiving members 40, 40 are configured to receive the other side of the film F at two points corresponding to the two pressing positions by the pressing means 39, 39.

  When the single-sided weldable film is used, the film F is sealed by using the part coat film on the outer surface of the portion of the seal polymerized pieces 18a and 18b and the polymerized portions 20a and 20b that are to be polymerized faces. When sandwiched by the body, the coating agent is heated to bond the seal polymerized pieces 18a and 18b and the polymerized portions 20a and 20b to each other. That is, when forming the longitudinal seal portion 20, the polymer portions 20a and 20b are bonded to each other with the seal polymer pieces 18a and 18b, and the two polymer portions 20a and 20b are bonded to each other to form two polymerizations. Since the eight reinforcing sheets of the pieces 18a and 18b and the two overlapping portions 20a and 20b overlap each other to form a columnar reinforced portion formed of the overlapping portions integrated by heat bonding, the strength of the bottom portion of the bag is increased. The further enhanced package 10 can be produced more efficiently.

  Further, a knife for cutting the film F in the end sealing means 38 in the direction intersecting the transport direction is provided with opening aid forming means such as a cutter corresponding to one longitudinal direction sealing part 20, and the film F is heated. When sealing and cutting, the opening auxiliary portion 24 is formed in the vertical direction sealing portion 20. Thereby, the package 10 which can be easily opened can be manufactured efficiently. In addition, after the formation of the vertical direction seal portion 20, the opening auxiliary portion 24 may be formed on the vertical direction seal portion 20.

12 bags, 14 rice balls (rice formed food), 15 bag trunks, 16 transverse sealing parts 16a extending base (proximal end), 20 longitudinal sealing parts, 20a, 20b overlapping parts 22 folded parts, 24 notches for opening ( Opening support part, notch)
28 Quality Display Field (Quality Display Section)

Claims (10)

A packaged body of cooked rice shaped food, wherein the cooked rice shaped food (14) is sealed in a bag,
In the bottom portion of the bag (12) made of sheet-like packaging material, a transverse direction is formed so as to overlap and weld the inner surfaces of the ends of the packaging material so as to match the inner surfaces of the bag (12) Seal part (16),
Longitudinal seal portions (20, 20) formed by overlapping and welding so that the inner surfaces of the packaging material are aligned on the left and right of the bag (12) and extending vertically on the bag (12);
Folds (22, 22) formed at the left and right ends of the bottom of the bag (12) and recessed inwardly of the bag;
And an opening assisting portion (24) which can be opened by tearing the bag (12) laterally.
The transverse seal portion (16) is bent at the base end (16a) at the bottom of the bag so as to overlap the bottom of the bag and extends along the bottom of the bag.
The proximal end (16a) of the transverse seal portion (16) is half the widthwise length of the transverse seal portion (16) bent at the proximal end (16a). Displacing the bag (12) in one of the front and back directions so as to be at a half position of the thickness in the front and back direction of
Two portions (20a, 20b) welded so as to align the inner surfaces of the packaging material on the bag bottom side of the two longitudinal seals (20, 20) sandwich the transverse seal (16) A packaged body of formed rice food according to any of the preceding claims. The cooked rice according to claim 1, characterized in that the width of the longitudinal seal (20 ) in the bag (12) is set narrower than the width of the transverse seal (16 ) in the bag (12). Food packaging.   The package body of formed rice food according to claim 1 or 2, wherein the transverse seal portion (16) is bent toward the back side of the bag (12).   On the back side of the bag (12), a quality indicator (28) capable of clearly identifying the package information is provided on the packaging material at least in the area where the package information is printed. The package body of the cooked rice shaped food as described in any one of claim 1 to 3. The above- mentioned parts (20a, 20b) on the bag bottom side of the longitudinal seal part (20) are adhered to the packaging material between the opposing surfaces of the parts (20a, 20b). The packaged body of the cooked rice shaped food as described in any one of 1-4.   The above-mentioned opening auxiliary portion (24) is formed in a single line or a plurality in a row at one or more longitudinal sealing portions (20, 20) at a position of 1/2 or more of the height of the formed rice food (14) It is a notch which consists of a notch of a notch or predetermined shape, and the package body of the formed-boiled formed food as described in any one of Claims 1-5 characterized by the above-mentioned. A packaging method for obtaining a package in which a formed food (14) is sealed with a heat-sealable packaging material on the inner surface,
The cooked rice food (14) is covered with a packaging material forming the bag (12), and the formed rice food product is stacked and heat sealed so that the inner surfaces at the end of the packaging material are aligned at the bottom of the bag. 14) a transverse seal (16) extending from the bag body (15) in which the bag is housed and extending in the left-right direction, the position of the base end (16a) on the bag body side of the transverse seal (16) Is formed to be displaced from the center of the bag (12) in the front and back direction,
The lateral seal portion (16) is bent at the proximal end (16a) from the one side to the other side where the proximal end (16a) is displaced from the center of the bag (12) in the front and back direction to form the pouch (12). Extended so as to overlap the bottom of the bag body at the center in the front and back direction of
At the left and right positions sandwiching the cooked rice shaped food (14), the center in the width direction of the transverse direction seal part (16) is pushed inward from the bag bottom side and the inner surface at the position which becomes the left and right edges of the bag (12) Forming a longitudinally sealed portion (20) extending in the vertical direction of the bag (12), intersecting the transverse direction sealing portion (16), by heating and sealing the packaging materials stacked so as to fit each other;
Align the inner surfaces of the packaging material on one side and the other side of the transverse sealing portion (16) on the front and back in a predetermined range from the bottom of the bag to the top of the longitudinal sealing portion (20) As described above, the method for packaging cooked rice shaped food is characterized in that the portions (20a, 20b) which are overlapped and welded are formed respectively.   The method for packaging cooked rice shaped food according to claim 7, characterized in that the packaging material on the top portion side is supported when the widthwise center of the transverse sealing portion (16) is pushed inward in the bag.   The method for packaging cooked rice shaped food according to claim 7 or 8, wherein the transverse sealing portion (16) is bent at the base end (16a) immediately after the packaging material is heat-sealed.   When forming at least one longitudinal seal portion (20), the opening auxiliary portion (24) which can be opened by tearing the bag (12) in the lateral direction at the outer end edge of the longitudinal seal portion (20) The method for packaging cooked rice shaped food according to any one of claims 7 to 9, characterized in that:

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