JP3303090B2 - Sealed package of Japanese confectionery etc. and 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 hermetically sealed package in which Japanese confectionery or the like is hermetically packaged, and a packaging method therefor.

[0002]

2. Description of the Related Art Raw Japanese confectionery such as buns has conventionally been packaged in a packaging form called square folded packaging. In this square fold packaging, a rectangular cut paper is placed on the packaged material such as bun from above, and the cut paper is folded on the lower surface side (back side) of the packaged material, and the folded portion is bonded with an adhesive or heat seal. , And is not intended to package the items to be packaged in a sealed state.

[0003] On the other hand, as a packaging form for packaging an object to be packaged in a hermetically sealed state, there is a form in which an ear portion formed by an end seal portion is bent and formed after pillow packaging. I can't get the feeling,
When used for packaging raw Japanese confectionery and the like, there is a disadvantage that the commercial value is reduced. In addition, as a packaging form applicable to an article to be packaged such as a Japanese confectionery, for example, as described in Japanese Patent Publication No. 7-67928, a packaging form obtained by a pillow packaging machine and a folding machine has been proposed.

[0004]

According to the technique disclosed in the above-mentioned publication, it is possible to form a package having hermeticity. However, after the end portion of the tubular film extending in the front and rear direction of the article to be packaged is end-sealed at the center of the product (obtained package) in the height direction, the ear portion is bent and formed. The length of the upper film from the end of the packaged object to the sealing position is the same as the length of the lower film. For this reason, when bending both ears to the lower surface side along the side surface of the packaged object, the bending start base end can be set only at the center position in the height direction of the packaged object, and In the case where the side and the top are arc-shaped, when the ear is bent along the side of the package, the height from the top side of the package to the center of the height, which is the bending base, is There is a drawback in that the film is stretched, a substantially linear bent edge cannot be formed on the upper surface side of the packaged object, and the packaged product cannot be given a sense of volume.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems inherent in the prior art, and has been proposed to appropriately solve the problem. An object of the present invention is to provide a sealed package of Japanese confectionery or the like and a packaging method to which a volume feeling and the like are obtained and to which automatic packaging having a sealing property can be applied.

[0006]

[MEANS FOR SOLVING THE PROBLEMS]
In order to suitably achieve the intended purpose, the hermetically sealed package of Japanese confectionery or the like according to the present invention has a single-sided weldable film formed into a tubular shape such that the welded surface is on the inner side. The superposed vertical seal portion is bent so as to be in contact with the body of the tubular film at a substantially central position in the width direction on the lower surface side of the packaged material stored in the tubular film, and sandwiches the packaged material. The length of the both bent ears of the tubular film extending in the front-back direction is set to a dimension such that the bent ears are bent to the lower surface side of the packaged object and do not overlap each other on the lower surface side. The film extending from the lower surface side of the object to be packaged at each of the bent ears is folded in the height direction of the object to be packaged toward the film extending horizontally from the upper surface side of the object to be packaged and polymerized. , The overlapping portion of both films is sealed horizontally over the entire width. An exposed portion where a welding surface is exposed is formed at a leading end of the film extending from the upper surface side of the packaged object in each of the bent ear portions, and each bent ear portion is bent to the lower surface side in the vertical seal portion. A notch is formed on the side of the tip of the ear portion facing the exposed portion when bent, such that one film welding surface of the polymerized film is exposed in a predetermined range,
The both bent ears are bent from the side surface to the lower surface side of the packaged object in a state where a substantially linear bent edge is formed over the entire width on the upper surface side of the packaged object, and the ear portions are bent. The welding surface of the exposed portion at the tip and the welding surface exposed from the cutout portion of the vertical seal portion are welded.

[0007] In order to solve the above-mentioned problems and to appropriately achieve the intended purpose, a packaging method for Japanese confectionery or the like according to another invention of the present application requires a method of forming a single-sided adhesive strip film into a tubular shape. The notch forming means arranged on the way of feeding the band-shaped film forms a notch for each one packaging length at one film edge along the longitudinal direction corresponding to the vertical seal margin,
The band-shaped film is formed into a tubular shape by bag-making means so that the welding surface is on the inner side, and both edges along the longitudinal direction of the obtained continuous tubular film are superimposed in a palm-shape manner. In the state where the film welding surface of the film is exposed, the overlapping edge portion is vertically sealed by a vertical sealing means to form a vertical seal portion which becomes a continuous strip, and the packaged object is provided on the continuous tubular film at predetermined intervals. After being supplied by the supply means, the continuous tubular film is cut by the cutting means to a required length including a folding ear portion as a folding allowance before and after the packaged object, and the required length is set before and after the packaged object is sandwiched. One film extending from the upper surface or the lower surface of the packaged object at each bending ear of the tubular film having the respective bending ears extending toward the other horizontally extending film. Bending in the height direction of the package and polymerizing Thus, at the other end of the film, an exposed portion is formed on one of the exposed portions of the film where the film is not polymerized, and at the overlapping portion of both films, a horizontal seal is applied over the entire width by a hermetic sealing means. The bent ear portion is bent along the side surface of the packaged object by the ear portion bending means so that a substantially linear bent edge is formed over the entire width on the upper surface side or the lower surface side of the packaged object, The exposed portion of the film welding surface formed at the end of each of the bent ears is bent so as to be in contact with the body of the tubular film at a substantially central position in the width direction on the lower surface side or the upper surface side of the packaged object. The film is bent to the cutout portion where the film welding surface is exposed, and both welding surfaces are heated and welded by heating means.

[0008]

Prior to forming a one-sided adhesive strip film into a tubular shape, a cutout is formed at one end of the film along the longitudinal direction corresponding to the vertical sealing margin of the film for each packaging length. Thus, in the vertical seal portion of the continuous tubular film formed into a tubular shape that is superimposed in a palm shape, one of the film welding surfaces of the polymerized film is exposed from the cutout portion. At each of the bent ears formed as a margin for folding the tubular film cut to a required length before and after the packaged object in the continuous tubular film, one of the extending ends from the upper surface side or the lower surface side of the packaged material. By bending the film in the height direction of the packaged object toward the other horizontally extending film side, an exposed portion exposing a welding surface where one film is not polymerized is formed at the leading end of the other film. You. Then, by applying a horizontal seal over the entire width to each of the folded ears, the article to be packaged is sealed. In addition, each bent ear portion is bent along the side surface of the packaged object so that a substantially linear bent edge is formed over the entire width on the upper surface side or the lower surface side of the packaged object. The exposed part of the film welding surface formed at the tip of the ear part,
Bending to the notch where the film welding surface of the vertical seal located on the lower or upper surface side of the packaged product is exposed, and heat welding the two welding surfaces together, provides a sense of volume and luxury. A sealed package having the above is obtained.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Next, a sealed package for Japanese confectionery and the like and a packaging method according to the present invention will be described below with reference to the accompanying drawings by way of preferred embodiments. In the examples, the packaged object has a distinction between top and bottom (front and back) as an example, and in the following description, `` upper surface, lower surface '', `` upper surface side, lower surface side '' etc. It is intended to indicate a relationship and not a vertical relationship in the drawings.

FIG. 1 shows a sealed package according to an embodiment in a perspective view from the lower surface side.
Is formed by hermetically sealing the package 12 such as Japanese confectionery with a single-sided adhesive film. That is, while being formed into a cylindrical shape so that the welding surface is on the inner side, the film edge along the longitudinal direction thereof is overlapped in a palm-shape manner and is subjected to a vertical seal, so that the vertical seal portion 14 becomes a continuous strip. The packaged object 12 is housed in the tubular film F on which is formed the substantially central portion in the longitudinal direction (the longitudinal direction of the vertical seal portion 14). The vertical seal portion 14 is in contact with the body of the tubular film F at a substantially central position with respect to the width of the package 12 (a direction orthogonal to the longitudinal direction of the tubular film F) on the lower surface side of the packaged object 12. (See FIG. 4). In addition,
The film for wrapping the packaged object 12 such as a steamed bun or a middle one is preferably made by laminating a heat-sealing film made of polyethylene or a composite material of nylon and polyethylene with Japanese paper or synthetic paper processed like Japanese paper. used.

The packaged object 12 in the cylindrical film F
On both sides before and after, the bent ears 16, 16 extending from the end of the packaged object 12 to the film front end (open end) are bent to the lower surface side of the packaged object 12, and Are set so that the bent ear portions 16 do not overlap each other. The film extending from the lower surface side of the packaged object 12 at each bent ear 16 is formed from the upper surface side of the packaged object 12 such that the portion near the end of the packaged object 12 substantially follows the side surface of the packaged object 12. The film is bent in the height direction toward the horizontally extending film, and the portion from the portion in contact with the upper film to the leading end of the film extends in a state of being overlapped with the upper film. Then, at appropriate positions of the overlapping portions of the upper and lower films of the bent ear portions 16, a horizontal seal portion 18 is formed by performing a horizontal seal over the entire width of the ear portion 16 (see FIG. 6). The package 12 is configured to be in a hermetically sealed state by the seal portion 18 and the vertical seal portion 14. Note that, when the bent ear portion 16 is bent to the lower surface side of the packaged object 12, the horizontal seal portion 18 faces the bent edge portion on the lower surface side or faces the lower surface side. It is preferably formed on the side of the front end of the film polymerization section.

[0012] When the film on the lower surface side of the packaged object 12 is bent, an exposed portion where the welding surface is exposed at the leading end of the film extending horizontally from the upper surface side of the packaged object 12.
(Non-overlapping portion with the lower surface side film) 20 is formed. In addition, a horizontal seal portion 18 is provided on each of the bent ear portions 16.
Before forming the package 12, the film extending from the upper surface side of the packaged object 12 and the film extending from the lower surface side are positioned close to the end of the packaged object 12 as shown in FIG. It is temporarily welded by a spot seal at substantially the center in the width direction, so that the horizontal seal and the folded folds 21 (described later) can be formed more favorably. The temporary welding may be performed at one location or at multiple locations separated in the width direction. Also, at the time of horizontal sealing, each bent ear 16 is
By forming folding folds 21 and 21 which are obliquely folded inward from the lower surface side to the upper surface side of the packaged object 12 on both sides in the width direction, the width of the bent ear portion 16 increases toward the distal end side. It is formed in a substantially trapezoidal shape that becomes smaller.

The folding folds 21 are formed by folding the films extending from the lateral sides on both sides in the width direction of the package 12 toward the inside at the height position near the lower surface side of the package 12, thereby forming It may be formed between films extending from the lower surface side. In this case, after the film is folded at a height position closer to the lower surface side of the film, the folded ear portion 16 is located at a position close to the end of the packaged object 12.
By performing temporary welding at substantially the center in the width direction, the bent ear portion 16 is formed in a substantially trapezoidal shape in which the width decreases toward the distal end side. Also, by biasing the folding height position toward the lower surface, the trapezoid formed by the lower film is smaller than the trapezoid formed by the upper film with the folding fold interposed therebetween. To be packaged 12
When it is bent to the lower surface side, the trapezoidal film located inside does not protrude outward in the width direction from the trapezoidal film located outside.

The longitudinal seal portion 14 is provided with a film on the inner surface side (one of the polymerized films) through a cutout portion 22 in which the film facing the outer surface side is cut off at a predetermined interval in the longitudinal direction.
Are exposed in a predetermined range.
The notch 22 of the embodiment is set as a small circular hole that does not extend to the film edge along the longitudinal direction in the vertical seal portion 14. Each of the bent ears 16 has a bent edge 2 on the upper surface near the end of the packaged object 12.
3, the welding surface exposed from the corresponding cutout portion 22 and the welding surface of the exposed portion 20 at the tip of the ear are welded, respectively. This bent edge 23
As shown in FIG. 2, which shows the sealed package 10 in a perspective view from the upper surface side, as a substantially linear (substantially linear) edge portion over the entire width of the bent ear 16 on the upper surface side of the packaged object 12. It is formed.

As described above, according to the sealed package 10 according to the embodiment, the bent ear portions 16 on both the front and rear sides sandwiching the packaged object 12 of the tubular film F having the longitudinally overlapped edge portion vertically sealed. , 16 has a horizontal seal over the entire width,
The package 12 is packaged in a sealed state. Therefore, it is possible to prevent foreign substances such as dust and dirt from being mixed into the inside of the obtained sealed package 10, and it is possible to set the storage period of the packaged object 12 longer than before. In addition, the bent ears 16 on both sides of the package 12 sandwich the package 12
After the film extending from the lower surface side of the film was bent in the height direction toward the film extending horizontally from the upper surface side, a horizontal seal was applied to the overlapped portion of both films.
Bending edge 23, 2 on the lower surface side of the package 12
3 are bent on the upper surface side of the packaged object
16 can be a substantially linear edge over the entire width, and especially when the top surface or the side surface of the article to be packaged 12 has an arc shape, the packaging form can be voluminous. In other words, it is possible to obtain a high-quality package similar to the conventional square folded package even though it is a sealed package.

Each of the bent ear portions 16 is formed in a substantially trapezoidal shape with folding folds 21 and 21 provided on both sides in the width direction so as to decrease in width toward the tip end side. When folded, the widthwise both sides do not protrude outward in the widthwise direction of the package, and exhibit a good appearance.
The folding folds 21 and 2 formed on the folding ears 16
1 should just be adopted as needed. Further, in order to form the bent ear 16 into a substantially trapezoidal shape, a portion between the lateral seal portion 18 and the front end side on both sides in the width direction of the ear 16 may be cut obliquely. Further, the vertical seal portion 14
Is formed as a small circular hole that does not extend to the film edge along the longitudinal direction, so that when manufacturing the sealed package 10, the notch 22 It can be prevented from being caught in various places during bag making, and can be effectively prevented from being welded to a sealer or the like during vertical sealing and hindering the transfer of the film.

[0017]

The operation of the method according to the present invention for producing the above-mentioned sealed package will now be described with reference to FIGS.
This will be described with reference to FIG. As shown in FIG. 3, the filmstrip f ₁ of filmstrip f _1-sided weldability is pulled out from the raw fabric roll 24 is wound around, the bag manufacturing unit through the feed rollers 26, 26 and a plurality of guide rollers 28 30 is transferred upward from below in the drawing. A notch forming means 32 is disposed on the way of feeding one of the film edges along the longitudinal direction corresponding to the vertical sealing margin of the strip film f ₁ drawn from the raw roll 24, and the strip film f ₁
As one package length is transferred, two notches 22 are formed at predetermined intervals. That is, FIG.
As shown in the figure, two small circular holes which do not extend to the film edge along the longitudinal direction of the vertical seal portion 14 are formed in the cutout portions 2 at two locations corresponding to the both bent ear portions 16 for each packaging length.
2 are formed.

The strip-shaped film f ₁ is formed into a rectangular tube by the bag-making means 30 in a state in which the welding surface is on the inner side according to the height and width dimensions of the article 12 to be packaged. And this in a continuous tubular film f _2, feed conveyor (supply means) 34 to be packaged 12 via which is disposed on the upstream side of the bag manufacturing unit 30 is one person Tezutsu sequentially supplied at predetermined intervals. When there is a distinction between the top and bottom (front and back) of the packaged object 12 as in the embodiment, the package 12 is placed on the supply conveyor 34 such that the top surface (front surface) faces downward in FIG.

The both end edges in the longitudinal direction of the continuous tubular film f ₂ is the package item placed on the film f ₂ 1
2 is superimposed in a palm-shape manner on the upper side of the drawing, and the film superimposed edge portion of the film is downstream while being pinched by a pair of feed rollers (feeding means) 36, 36 disposed downstream of the bag making means 30. Sealing device (vertical sealing means) 3 which is transported to the
8, a vertical seal is applied to the overlapped edge, and the continuous tubular film f ₂ is folded by a cutting device (cutting means) 40 as a folding margin before and after the packaged object 12 is sandwiched. It is cut to the required length including the parts 16,16. As a result, as shown in FIG. 4, a cylindrical film F of a required length having bent ears 16, 16 of a required length formed before and after sandwiching the packaged object 12 is obtained. Note that the length of each of the bent ear portions 16, 16 is set on the lower surface side of the packaged object 12 (FIG. 4).
Is set to a size that can be bent up to the upper side) and that the two bent ear portions 16 and 16 do not overlap each other on the lower surface side. In addition, the notch 22 formed on one of the films to be polymerized and exposing the welding surface of the other film faces two places separated in the longitudinal direction of the vertical seal portion 14 of the cylindrical film F.

The packaged object 12 that has passed through the cutting device 40
The vertical seal portion 14 of the tubular film F in which the container is housed has a body portion of the tubular film F so as to reach a substantially central position with respect to the width of the packaged object 12 as shown in FIG. Folded to touch. At this time, the notch 22,
The vertical seal portion 14 is bent so that the film on which the film 22 is formed faces the outside, and the inside film welding surface is set to be exposed to the outside from the cutout portions 22. In the bending step of the vertical seal portion 14, after the vertical seal is applied in accordance with various conditions such as the case where temporary welding described later is performed or not performed, the bending ear portion 1 described later is used.
What is necessary is just to carry out before applying a horizontal seal to 6,16.

As shown in FIG. 3, the package 12 is transported horizontally with the transport direction being changed by 90 degrees. One of the films extending from the lower surface side of the packaged object 12 is moved from the upper side to the lower side in the drawing (from the lower surface side of the packaged object 12 to the upper surface side) by the spot sealing means 42 so that the film near the end of the packaged object 12 The portion is bent in the height direction toward the film extending horizontally from the upper surface side substantially along the side surface of the packaged object 12, and is temporarily welded at the portion in contact with the upper surface side film (FIG. 5). reference). Reference numeral 43 indicates a temporary welding portion formed on the bent ear portion 16,
It faces a position close to the end of the packaged object 12.

Next, each of the bent ear portions 16 on the front and rear sides of the packaged object 12 has both sides in the width direction obliquely inward from the lower surface side to the upper surface side of the packaged object 12 by the folding means 44. Each of the folded folds 21 and 21 is formed into a substantially trapezoidal shape in which the width becomes smaller toward the distal end side. Further, each of the bent ear portions 16 is provided with a horizontal seal over the entire width of the ear portion 16 by the hermetic sealing means 46 at a position on the tip end side of the overlapping portion of the upper and lower films, so that the horizontal seal portion 18 is formed. (See FIG. 6). That is, before and after sandwiching the packaged object 12 in the tubular film F on which the vertical seal portion 18 is formed, the packaged object 12 is sealed and packaged by applying a horizontal seal over the entire width.
Further, the film extending from the lower surface side of the packaged object 12 in each of the bent ear portions 16 is bent in the height direction,
Exposed portions where the welding surface is exposed at the tip of the film extending horizontally from the upper surface side of the packaged object 12 in each ear portion 16
(Non-overlapped portions with the lower surface side film) 20 are respectively formed.

Next, each of the bent ears 16 of the tubular film F is bent by the ear bent means 48 so that the bent edge 2
3 is folded toward the side surface of the packaged object 12 so as to be provided as a substantially linear edge over the entire width on the upper surface side of the packaged object 12 (in FIG. 7, folded upward from below). Bend). Further, each bent ear 16 is bent along the lower surface side of the packaged object 12 and the bent ear 1
6 is exposed at a position facing the cutout portion 22 of the vertical seal portion 14 located on the lower surface side of the packaged object 12, and the welding surfaces exposed from the both portions 20, 22. Is heated and welded by the heating means 50, thereby obtaining FIG.
And the sealed package 10 concerning an Example as shown in FIG. 2 is manufactured.

The sealed package 10 thus manufactured
As shown in FIG. 2, since the upper surface side (upper side of the figure) of the packaged object 12 is the bent edge 23, 23 (folding base end) of the bent ear portion 16, each folding When the bent ear 16 is bent to the lower surface side of the packaged object 12, the film extending from the upper surface of the packaged material 12 is not pulled, and the bent edge 2
3 is applied in a substantially linear shape over the entire width, so that a package having a voluminous feel can be obtained even if the side surface or the upper surface of the article to be packaged 12 has an arc shape. Further, since the hermetically sealed package 10 is hermetically sealed by the vertical seal portion 14 and the horizontal seal portion 18, foreign matter such as dust and dirt does not enter the inside, and the preservability of the packaged object 12 is improved. Furthermore, the storage period can be further extended by hermetically packaging the article 12 together with a deoxidizer or the like.

Before the strip-shaped film f ₁ is formed into a cylindrical shape, the notch 22 is formed at one of the film edges along the longitudinal direction corresponding to the vertical sealing margin. An exposed portion of the welding surface is formed in the vertical seal portion 14 formed by vertically sealing the portion. Therefore, by heating and welding the exposed portions of the welding surfaces of the vertical seal portion 14 and the bent ear portions 16, 16, the ear portions 16, 16 can be securely and easily stuck on the lower surface side of the package. Note notch 22 in the embodiment, since the small hole does not extend to the film edge along the longitudinal direction of the filmstrip f _1, during transport of the filmstrip f ₁ and bag-making or the like notch 2
2 is not caught in various places, and smooth transfer and bag making can be achieved. Since the notch 22 is a small hole,
The area of the film welding surface exposed from the hole is small, and the film is not welded to a sealer or the like at the time of vertical sealing by the vertical sealing device 38, so that the film can be transported stably.

Prior to bending each of the bent ears 16, the upper film on the package 12 is bent in the height direction of the package 12 toward the lower film, and then the upper and lower surfaces are bent. Since a horizontal seal is applied to the overlapped portion of the film, the bent ear 1
6, a substantially linear bent edge 23 can be reliably provided over the entire width, and a horizontal seal capable of sealing the packaged object 12 can be reliably performed.

In the above embodiment, the cutout formed in the vertical seal allowance of the strip film is a circular hole, but the shape of the hole may be various shapes such as a square, an ellipse, or a slit. The notch is not limited to the hole, and may be a notch opened at the film edge along the longitudinal direction in the vertical seal portion. Furthermore, the notch formed for each packaging length need not be two places, and a long slot is formed in one place as long as it corresponds to the exposed part of the both bent ears, or It is sufficient that the welding surface such as a plurality of continuous holes is exposed.

In the packaging method of the embodiment, the belt-like film is transferred upward from below with respect to the bag making means, and the overlapping edge along the longitudinal direction is vertically sealed above the article to be packaged. However, a method may be used in which the belt-like film is transferred from above to below with respect to the bag making means, and the overlapping edge along the longitudinal direction is vertically sealed below the article to be packaged.
However, in this case, when there is a distinction between the top and bottom of the packaged object as in the embodiment, while supplying the continuous packaged film with the upper side (front side) of the packaged object facing upward, Each bending ear portion is configured to be bent from the upper side to the lower side in the figure, contrary to the embodiment. Also, the temporary welding of the upper and lower films performed before applying the horizontal seal to each bent ear may be omitted, and one film may be oriented toward the other film by appropriate bending means or hermetic sealing means itself. It is also possible to bend in the direction to provide a horizontal seal. Further, in the embodiment, after the continuous tubular film is cut before and after sandwiching the article, the transport direction of the article is changed by 90 degrees. However, the transport direction of the article is transferred linearly without changing the transport direction. Each step may be performed while performing.

[0029]

As described above, according to the sealed package of Japanese confectionery or the like according to the first aspect of the present invention, the bent ears at the front and rear sides of the front and rear sides sandwiching the packaged object have the bent edges. Is folded to the lower surface side so as to be substantially linear over the entire width on the upper surface side, so that the film extending from the upper surface side of the packaged object is not pulled, and is similar to the conventional square folded packaging A sealed package having a luxurious feeling and a voluminous feeling can be obtained. In addition, since the package is provided with a vertical seal portion and a horizontal seal portion, it has a sealing property, can prevent foreign substances such as dust and dirt from being mixed, and can store the packaged product as compared with the related art. There is an advantage that the period can be set to a long period. Furthermore, since the bent ears extending back and forth of the article to be packaged are heat-welded to the film on the lower surface side of the article to be packaged, an adhesive or the like may be used to stick the ears to the film as in the conventional case. There is no need to use a label or the like, and the cost can be reduced.

Further, according to the method for packaging Japanese confectionery or the like according to the second aspect of the present invention, before the strip-shaped film is formed into a cylindrical shape and the film edge along the longitudinal direction is in a polymerized state, the vertical sealing is performed. Since the notch is formed at one edge of the film along the longitudinal direction corresponding to the margin, the exposed portion of the welding surface is formed at the vertical seal formed by vertically sealing the overlapped edge with the vertical sealing means. . That is, the bonding surface between the vertical seal portion and the bent ear portion is exposed without using an adhesive or a label as in the related art to attach the bent ear portion to the upper surface side or the lower surface side of the package. Just heat welding the parts together,
The ears can be securely and easily attached to the upper surface or the lower surface of the package.

Further, prior to bending each of the bent ears, one of the films extending from the upper surface or the lower surface of the package is folded in the height direction of the package toward the other horizontally extending film. Since the horizontal seal is applied to the overlapped portion of the upper and lower films over the entire width after being bent, it is substantially over the entire width of the bent ear portion on the upper surface or the lower surface facing the film on the other side of the packaged object. This has the advantage that a linear bent edge can be reliably provided, and that a horizontal seal that can seal a packaged object in a sealed state can be reliably performed. In addition, since a substantially linear bent edge is formed over the entire width of the bent ear portion, a sealed package having a high-class feeling, a sense of volume, and the like similar to the packaging form of the conventional square folded packaging can be manufactured. In addition, since both folded ears are provided with a horizontal seal over the entire width, the packaged object can be hermetically sealed together with the vertical seal, preventing foreign substances such as dust and dirt from being mixed. In comparison, the storage period of the packaged item can be set longer.

Next, in the sealed package according to the third aspect and the packaging method according to the sixth aspect, the bent ear portion is formed in a substantially trapezoidal shape whose width decreases toward the tip end side.
When the bent ears are bent to the lower surface side of the article to be packaged, the bent ears do not protrude outward in the width direction of the package, so that the appearance can be improved. In the sealed package according to the fourth aspect and the packaging method according to the eighth aspect, the cutout formed in the vertical seal is configured not to extend to the film edge along the longitudinal direction of the vertical seal. Therefore, in the packaging process, the notch does not catch on various parts during the transfer or bag making of the belt-shaped film, and the transfer or bag making can be performed smoothly. Furthermore, in the sealed package according to the fifth aspect and the packaging method according to the ninth aspect, the notch formed in the vertical seal portion for welding the fold ear portion is formed in both the bent ear portions for each wrapping length. Since there are at least two corresponding holes, the film welding surface exposed from the notch can be reduced,
It is possible to prevent a situation in which the film is welded to the sealer or the like at the time of vertical sealing and the transfer of the film is not stably performed.

In the packaging method according to the seventh aspect, one film extending from the upper surface or the lower surface of the object is bent in the height direction of the object toward the other horizontally extending film. After that, the overlapped portions of both films are temporarily welded, so that the horizontal sealing in the subsequent step can be performed well.

[Brief description of the drawings]

FIG. 1 is a perspective view of a sealed package according to a preferred embodiment of the present invention as viewed from a lower surface side.

FIG. 2 is a perspective view of the sealed package according to the example, as viewed from the upper surface side.

FIG. 3 is a schematic process diagram illustrating a process of manufacturing the sealed package according to the embodiment.

FIG. 4 is a perspective view showing a state in which an article to be packaged is stored in a tubular film according to the embodiment.

FIG. 5 is a perspective view showing a state in which temporary welding is performed on bent ears of the tubular film according to the example.

FIG. 6 is a perspective view showing a state in which a lateral seal is applied to a bent ear portion of the cylindrical film according to the example.

FIG. 7 is a perspective view showing a bent ear portion of the cylindrical film according to the example in a state where the bent ear portion is bent with an upper surface side of a packaged object as a bent edge.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 12 To-be-packed thing 14 Vertical seal part 16 Folding ear part 20 Exposed part 22 Notch 23 Bending edge 30 Bag-making means 32 Notch formation means 34 Supply conveyor (Supply means) 36 Feed roller (Send means) 38 Vertical seal device ( Vertical cutting means) 40 Cutting device (Cutting means) 42 Spot sealing means 44 Folding means 46 Sealing sealing means 48 Ear bending means 50 Heating means F Cylindrical film f ₁ Strip film f ₂ Continuous cylindrical film

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 48-71016 (JP, U) JP 7-67928 (JP, B2) JP 50-10291 (JP, Y1) (58) Field (Int.Cl. ⁷ , DB name) B65D 77/30 B65B 9/06 B65B 11/22

Claims (10)

(57) [Claims] 1. A vertical seal portion (14) obtained by superposing a single-sided weldable film in a palm shape of a tubular film (F) formed into a tubular shape such that the welded surface is on the inner side, and the tubular film ( F) is folded so as to be in contact with the body of the tubular film (F) at a substantially central position in the width direction on the lower surface side of the packaged object (12) housed in the package (12), and sandwiches the packaged item (12). The length of both folded ears (16, 16) of the tubular film (F) extending back and forth
(12) is bent so as to reach the lower surface side, and both bent ear portions (16, 16) are set to dimensions such that they do not overlap with each other on the lower surface side, and the packaged object in each of the bent ear portions (16) is The film extending from the lower surface of the package (12) is folded in the height direction of the package (12) toward the film extending horizontally from the upper surface of the package (12), and is polymerized. The overlapping portion of the film is horizontally sealed over the entire width, and an exposed portion (20) where a welding surface is exposed at a tip portion of the film extending from the upper surface side of the packaged object (12) in each of the bent ear portions (16). Is formed on the vertical seal portion (14), on the side opposed to the exposed portion (20) at the tip of the ear portion when each bent ear portion (16) is bent to the lower surface side, a polymer film. A notch (22) is formed such that one of the film welding surfaces is exposed in a predetermined range, and the both bent ears (16, 16) are located on the upper surface side of the packaged object (12). With the substantially linear bent edges (23, 23) formed over the entire width, the packaged product (12) is bent from the side surface to the lower surface side, and the exposed portion (20) at the tip of the ear portion Welded surface and the notch (2
A sealed package of Japanese confectionery or the like, characterized in that the welding surface exposed from 2) is welded. 2. Prior to forming the single-sided adhesive band-like film (f ₁ ) into a cylindrical shape, the notch forming means (32) disposed on the way of feeding the band-like film (f ₁ ) is used to form a longitudinal seal. A notch (22) is formed for each packaging length at one film edge along the longitudinal direction corresponding to the margin, and the bag-like film (f ₁ ) is formed with a bag making means (30) so that the welding surface is on the inside. Along with forming into a tubular shape, both end edges along the longitudinal direction of the obtained continuous tubular film (f ₂ ) are polymerized in a palm-shape manner to expose one film welding surface from the cutout portion (22). state to form a vertical seal portion (14) comprising a continuous strip in longitudinal sealing means (38) the polymer edge portions, the continuous tubular film (f ₂₎ to be packaged at predetermined intervals (12 ) By the supply means (34), and then the
Before and after 2), the continuous tubular film (f ₂ ) is cut by a cutting means (40) to a required length including a bent ear part (16) as a folding allowance, and the packaged object (12) is sandwiched. Each bent ear of the tubular film (F) with the bent ears (16) of the required length extending before and after
One film extending from the upper surface side or the lower surface side of the packaged object (12) in (16) is folded in the height direction of the packaged object (12) toward the other horizontally extending film side and polymerized. By doing so, at the other end of the film, an exposed portion (20) that exposes the welding surface where the film does not polymerize on one side is formed, and the horizontal sealing over the entire width is performed on the overlapping portion of both films by hermetic sealing means (46) And each bent ear part (16)
A substantially linear bent edge (23) over the entire width on the upper surface side or the lower surface side of the packaged object (12) by the ear bending means (48).
Is bent along the side surface of the packaged object (12) so that the exposed portion (20) of the film welding surface formed at the tip of each of the bent ears (16) is attached to the packaged object. (12) A tubular film at a substantially central position in the width direction on the lower surface side or the upper surface side
(F) is bent so as to be in contact with the body portion, and is bent to the notch (22) where the film welding surface is exposed, and both welding surfaces are heated and welded by the heating means (50). A method for packaging Japanese sweets and the like, characterized by the following. 3. The both bent ears (16, 16) of the tubular film (F) are formed in a substantially trapezoidal shape in which both sides in the width direction are folded inward and the width decreases toward the tip end. A sealed package of the Japanese confectionery or the like according to claim 1, which is made. 4. The hermetically sealed package of Japanese confectionery or the like according to claim 1, wherein the cutout portion (22) is a hole of a required shape which does not extend to a film edge along a longitudinal direction in the vertical seal portion (14). . 5. The notch (22) has both bent ears (16, 16).
The hermetically sealed package of Japanese confectionery or the like according to any one of claims 1, 3 and 4, wherein the hermetically sealed package is formed in at least two places corresponding to the following. 6. The both bent ears (16, 16) of the tubular film (F) are folded inward from both sides in the width direction by folding means (44) prior to the horizontal seal, and head toward the tip end. 3. The method for packaging Japanese confectionery or the like according to claim 2, wherein the packaging method is formed in a substantially trapezoidal shape having a smaller width as the width decreases. 7. Each of the bent ear portions (16) of the tubular film (F) formed before and after the packaged object (12) extends from the upper surface side or the lower surface side of the packaged object (12). After bending the film in the height direction of the packaged object (12) toward the other horizontally extending film side, the overlapped portion of both films is temporarily welded by spot sealing means (42). 6. A method for packaging Japanese confectionery or the like according to 6. 8. A notch (22) having a hole of a required shape which does not extend to the edge of the film along the longitudinal direction is formed in the vertical seal margin of the strip-shaped film (f ₁ ).
A packaging method for a Japanese confectionery or the like according to any one of the above. 9. The notch forming means (32) corresponding to both bent ears (16, 16) for each packaging length in the vertical seal margin of the strip-shaped film (f ₁ ). Notch (2
The method for packaging Japanese confectionery or the like according to any one of Claims 2, 6, 7 and 8, wherein 2) is formed. 10. The continuous tubular film (f ₂ ) has both edges along its longitudinal direction superposed in a palm-shape manner above a packaged object (12) placed on the film (f ₁ ). Then, the overlapped edge is transported while being sandwiched by the feeding means (36, 36), and is vertically sealed by the vertical sealing means (38), and the packaged object (12) is turned upside down. in supply means (34) according to claim 2,6,7,8 or fed toward the continuous tubular film (f ₂₎ by 9
The packaging method for Japanese confectionery or the like according to any one of the above.