JPS6140701Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a fish body packaging body suitable for vacuum packaging a single fish such as salmon.

Prior Art and Problems In recent years, vacuum packaging using synthetic resin flat bags has come to be widely used for packaging fish, especially single fish such as fresh salmon.

The vacuum packaging bag for salmon is usually a long and narrow flat bag made of a synthetic resin tube with one end sealed and the other end open so that the interior can be seen through.
After putting the fish in the bag, the bag is vacuum degassed, the opening is sealed, and a hanging string is attached to the center of the sealed part of the long and thin flat bag to hang it.

However, in the above-mentioned packaging form, since a rectangular flat bag with a certain degree of freedom is used to accommodate fish of various sizes, the pointed head of the fish body is offset within the bag, and the entire fish body is stored diagonally with respect to the center line of the bag. It has been pointed out that this causes defects that impair the appearance of the product.

Furthermore, as the weight of the fish concentrates on the center line directly below the suspension string containing the fish body (the tensile force of the suspension rope acts), so-called drag wrinkles appear along both sides of the bag center line, and the fish body tip. Together with the formation of drip pools around the skin, this significantly impairs the aesthetic appearance.
In addition, as mentioned above, the tip of the fish body is shifted to one side, which makes it even more unsightly and makes it less comfortable to carry.

The occurrence of wrinkles and drip pools are particularly noticeable at the ends of the fish body, that is, around the fish body point where the thickness is large and the fish body has a pointed shape. As a result, the aesthetic appearance, which is important for product packaging, is greatly impaired.

The above-mentioned drawbacks are considered to be unavoidable when conventional simple tube-shaped flat bags are used, and improvement thereof is desired.

Purpose and structure of the invention The present invention was created in response to these demands, and its gist is to change the external shape of a rectangular and elongated flat bag 1 for vacuum packaging, as shown in the examples in the drawings. Encapsulated fish body 13 near one end without giving
A pointed band-shaped seal 2 is formed that is approximately in synchronization with the pointed part 13a of the fish body, and the pointed part 13a of the fish body is pushed into the pointed storage bag area 3 defined by the pointed band-shaped seal 2. Place the tip of the head (tip of the mouth) into the pointed storage bag area 3.
The structure is such that the left and right seal sides 2a and 2b of the belt-shaped seal 2 extending from the tip P3 regulate and position the upper and lower jaw sides of the fish cusp. Effectively achieves the goals of eliminating poor fish enclosure posture, which was a pending issue when vacuum packaging is done using flat bags, and suppressing the occurrence of wrinkles around the pointed head of fish bodies, making it possible to improve the aesthetic appearance of flat bag packaging. That is.

Embodiment of the invention FIG. 1 shows a first embodiment constructed in accordance with the above-mentioned purpose, in which an upper seal 4 extending in the short width direction is formed at one end of an elongated flat bag 1, and the upper seal The aforementioned fish body point 1 is placed in the pouch adjacent to 4.
A pointed belt-shaped seal 2 having a shape that roughly matches the outer shape of 3a.
The pointed end P3 of the pointed belt-shaped seal 2 is connected to the substantially central part of the upper seal 4, and the pointed end P3
The left and right seal sides 2a, 2b extending across the border are made to reach the longitudinal sides 1a, 1b of the elongated flat bag 1. Therefore, the pointed head 1 of the fish body 13 is located in the inner area of the pointed belt-shaped seal 2.
3a is formed, and at the same time, left and right seal sides 2a, 2 are formed in the outer area of the pointed band seal 2.
b and the upper seal 4 form left and right sealed bag areas 8 and 9 that are isolated from each other and sealed.

Left and right seal sides 2a, 2 of the above-mentioned pointed band-shaped seal 2
b is preferably arranged so that the point P3, which is the intersection point, is on the center line of the flat bag and is symmetrical, so that the imaginary line connecting the point P3 and the intersection points P1 and P2 forms an isosceles triangle; On the center line of the bag,
Or, when the bag is suspended at the upper seal part on two lines equidistant from the center line of the bag, both seal sides 2a,
2b, so that an equal load is applied to the intersection points P1 and P2.

In this embodiment, a hanging hole 6 for attaching a hanging string 15 is arranged so as to be on the center line of the flat bag, above the tip of the band-shaped seal 2, and in addition above the upper seal 4.

Preferably, the left and right seal sides 2a and 2b of the pointed strip seal 2 are respectively arcuate toward the outer region of the strip seal. That is, the overall shape of the band-shaped seal 2 formed by both seal sides 2a, 2b is made into a pointed arc shape, so that it fits well with the fish body point 13a, and the both seal sides 2a, 2b and the elongated flat bag 1 are made into a pointed arc shape. At the intersections P1 and P2 with the longitudinal sides 1a and 1b, the ends of the seal sides 2a and 2b gradually draw an arc shape, and gradually the seal side 2
Same intersection P1, P2 so as to merge with a, 2b
to prevent breakage.

Reference numeral 5 designates an opening 5 at the opposite end of the flat bag 1 on which the upper seal 4 and the pointed strip seal 2 are formed, that is, at the bottom of the flat bag.

FIG. 2 shows the fish body 13 vacuum-packaged and suspended in the fish body packaging bag thus formed.

The fish body 13 is put into the opening 5 with the pointed end 13a first, and as it is put in, the pointed end 13a touches the sealing side 2.
a, 2b while being guided along the pointed storage bag area 3
The tip of the pointed head 13a is pushed in to the position where it coincides with the pointed end P3, and as a result, the entire fish body 13 is housed in the center of the bag while its posture is corrected, thereby securing a fixed position.

In the above state, only the inner part of the pointed strip seal 2 that communicates with the pointed storage bag area 3 is vacuum degassed, and the opening 5 is completely sealed with the bottom seal 5'.
Complete vacuum packaging.

As described above, the tip of the head 13a of the fish body 13 is positioned by the tip P3 of the pointed strip seal 2, and the dorsal and ventral sides of the head are positioned at the left and right seal sides 2.
The position is regulated by points a and 2b, and there is no need for special considerations in packaging work for positioning, and vacuum packaging can be easily performed at a preferred position within the bag.

Further, according to the present invention, the area subjected to vacuum degassing can be limited to the inner bag area up to the pointed bag area 3 inside the pointed band seal 2, as described above, and the area outside the pointed band seal 2, That is, the left and right sealed bag regions 8 and 9, which are the circumscribed regions of the fish body point 13a, maintain their original rectangular and flat shape, and there are no wrinkles that would cause the above-mentioned drip pools, and the appearance is very good.

The presence of the pointed belt-shaped seal 2 is also effective when hanging the fish packaging bag using the hanging string 15.

A suspension string for hanging the fish body is usually attached near the center of the upper seal 4.

The load of the fish body when suspended by the above-mentioned hanging cord is applied to the left and right seal sides 2a, 3a divided into two parts, and is applied to the left and right sides 1a, 1b of the flat bag 1 via the respective seal sides.

As mentioned above, conventional fish packaging bags exhibit so-called wrinkles along the left and right sides of the bag axis, but in the present invention, as described above, the fish body load is applied to the left and right seal sides 2a and 3a.
Since it is divided into two parts and hangs over the left and right sides 1a and 1b of the flat bag 1, it is possible to suppress the occurrence of wrinkles on both sides of the bag along the fish body when the bag is hung and carried, and the feeling of hanging and carrying is extremely stable and good. .

The material for the flat bag 1 is, for example, 6-nylon, 6-nylon 6/6 nylon copolymer, vinylidene chloride copolymer, etc. The outer surface is a so-called barrier plastic film with low gas permeability, and the outer surface is made of a so-called barrier plastic film such as polyethylene, ethylene-vinyl acetate. A composite film or the like is used in which the inner surface (the side in contact with the fish body) is made of a plastic film with good sealing properties such as a copolymer or ionomer.

A plurality of other examples having the same basic concept as the embodiment shown in FIG. 1 above are as follows.

FIG. 3 shows a case where the longitudinal sides 1a and 1b of the flat bag 1 explained in FIG. 1 are bordered with left and right side seals 10 and 11. In this way, the shape of the sides 1a and 1b can be maintained by being connected to the pointed belt-shaped seal 2.
This not only helps in imparting linearity, but also allows the both side seals 10 and 11 to bear the load applied to the left and right seal sides 2a and 2b of the pointed strip seal 2.

The third and fourth embodiments shown in FIGS. 4 and 5 have an opening 5 at the bottom of the flat bag 1 for inserting fish bodies.
The case where the opening 16 is provided on one of the longitudinal sides 1a and 1b of the flat bag 1 is shown. In this way, even if the fish body is introduced from one side in the longitudinal direction, it can be housed in a fixed position by the positioning action of the pointed strip seal 2.

The difference between the embodiments shown in FIG. 4 and FIG. 5 is that in FIG.
12, FIG. 4 shows a case where the side 1b corresponding to the opening 16 is simply a folded side of the film, and seals 4, 12 are formed on the top and bottom sides.

Furthermore, in the fifth embodiment shown in FIG. 6, the pointed end P3 of the pointed belt-shaped seal 2 of the first to fourth embodiments is connected to the upper seal 4 provided with the hanging hole 6.
3 is slightly spaced apart from the same seal 4.
In this case, the left and right sealed bag areas 8 and 9 communicate with each other at the communication portion 14, but are isolated from each other.

Of course, it is possible to incorporate the constituent parts of the respective embodiments into the fifth embodiment, or to combine the embodiments as appropriate.

Effects of the invention As described above, according to the invention, the head 1 of the fish body 13
While the tip of the tip 3a is positioned by the tip P3 of the pointed strip seal 2, the position of the dorsal and ventral sides of the head is regulated by the left and right seal sides 2a and 2b. It has the advantage that it can be easily kept in a desired position within the bag and vacuum packed without requiring any special care.

Furthermore, according to the present invention, the area subjected to vacuum degassing can be limited to the inner bag area up to the pointed storage bag area 3 inside the pointed band seal 2, as described above, and the area outside the pointed band seal 2 In other words, the left and right sealed bag regions 8 and 9, which are the circumscribed areas of the fish body cusp 13a, can be vacuum-suctioned to maintain a flat original shape without forming wrinkles, and the generation of drip pools around the cusp as described above can also be avoided. It can be prevented well and the appearance is very good.

Further, the presence of the pointed belt-shaped seal 2 and the arrangement position of the hanging hole 6 are effective when the fish packaging bag is suspended by the hanging string 15. In other words, the load of the fish body when suspended by the above-mentioned hanging string is reduced by the tip P3 located at the center of the upper seal 4.
The load is divided into left and right seals 2a and 3a through the seals, and the load is applied to the left and right sides 1a and 1a of the flat bag 1 through each seal side.
1b, it is possible to suppress the occurrence of wrinkles in the side region of the fish body during hanging and carrying, and effects such as a very stable and good feeling of hanging and carrying can be expected.

In addition, the present invention does not have to apply a solid seal over a wide area, which is industrially and economically disadvantageous (the use of a large heat-sealing mold and high costs), and it can be applied along the pointed head with the minimum amount of sealing needed. Formation of ivy-pointed band seals is possible. In addition, a slim, streamlined, pointed band-shaped seal that conforms to the shape of the fish body cusp is formed from approximately the center of the upper seal (the left and right sealed bag areas maintain the same shape as the bag body). Together with the shape of the part, it creates a good aesthetic appearance, and can improve the aesthetic appearance as a packaging bag, especially as a fish packaging bag, and can enhance the above-mentioned initial effect without spoiling the appearance.

[Brief description of the drawings]

The drawings show an embodiment of the invention. Fig. 1 is a side view of a fish packaging bag according to the first embodiment, Fig. 2 is a side view of the same showing the state in which fish is accommodated, Fig. 3 is a side view of the fish packaging bag according to the second embodiment, and Fig. 4 is a side view of the fish packaging bag according to the second embodiment. FIG. 5 is a side view of a fish packaging bag according to the fourth embodiment, and FIG. 6 is a side view of a fish packaging bag according to the fifth embodiment. 1...Flat bag, 2...Pointed band sticker, P3...
Same tip, 2a, 2b... Same left and right seal sides, 3...
Pointed storage bag area, 4...Top seal, 5...Bottom opening, 5'...Bottom seal, 6...Hanging hole, 8, 9...
...Left and right sealed bag areas.

Claims (1)

[Scope of utility model registration request] An upper seal extending in the widthwise direction is formed at one end of the elongated flat bag, and a pointed band-shaped seal having a shape that approximately conforms to the outer shape of the pointed head of the fish is formed in the bag portion adjacent to the upper seal, and the pointed band seal is formed in the bag portion adjacent to the upper seal. The tip of the band-shaped seal is connected to or close to the approximate center of the upper seal, and the left and right seal sides extending from the tip reach the longitudinal sides of the elongated flat bag, and the fish body is placed in the inner area of the point-shaped band-shaped seal. A pointed storage bag area is formed for accommodating the pointed head of the belt-shaped seal, and a left and right closed bag area defined by the left and right seal sides and the upper seal is formed in the outer area of the pointed band-shaped seal, and the pointed end of the band-shaped seal is 1. A fish packaging bag characterized by having a hanging hole for attaching a hanging string located at the upper part of the bag and penetrating the upper seal.