JP4887120B2 - Shrimp packaging tray - Google Patents

Description

  The present invention relates to a shrimp packaging tray, and in particular, a shrimp packaging suitable for storing a plurality of shrimps stacked on a tray in a plurality of stages, then wrapping them with a film, and selling them on a product display shelf. Is related to the tray.

  In general, a plurality of shrimp are stored in a tray (in many cases, stacked in multiple stages), then packed with a film, frozen and stored. Then, the frozen shrimp are transported to a store and arranged on a display shelf. As a tray in such an application, there is one obtained by thermoforming a synthetic resin sheet or a synthetic resin foam sheet into a tray shape (for example, Patent Document 1).

Japanese Patent No. 3585281 (see FIGS. 1 to 3)

By the way, at the time of sale, it is desired to enhance the volume of shrimp contained in the tray, and as disclosed in Patent Document 1, a raised portion is formed in the middle portion of the bottom wall of the tray, By putting shrimp on top, it raises the shrimp and enhances the volume of shrimp.
In the case of shrimp, the portion from which the head is removed (headless shrimp) is mainly stacked and stored in a tray. However, in the tray of Patent Document 1, the height of the formed raised portions is almost the same height. Therefore, it becomes flat as a whole. For this reason, conventionally, a portion of a rug such as an air-filled cushioning material or urethane foam is folded and rolled, and the shrimp is placed in a tray in a tilted state by placing the trunk end of the shrimp there. Yes.
However, folding or rolling the rug is not preferable because not only the packaging work becomes complicated, but also the amount of the laying material increases, leading to an increase in the cost of the product.

  The present invention has been made in view of the actual circumstances of the above-described background art, and can reduce or eliminate the amount of rug used, and can increase the volume of shrimp, and can provide a shrimp packaging tray. The purpose is to provide.

In order to achieve the above-mentioned object, the shrimp packaging tray of claim 1 is a rectangular or square tray having a bottom wall and a peripheral wall, and a flange is formed around the tray, and an intermediate portion is provided above the bottom wall. A plurality of ridges projecting to the rear are formed, and a bulge portion for placing the trunk end and head of the shrimp, which is higher than all the flanges and ridges, is formed at the rear part over almost the entire length on the left and right. In addition, a pedestal for placing a shrimp tail is formed at the front.
Here, the term indicating the position and direction refers to the position and direction when the tray storing the shrimp is arranged horizontally with the stored shrimp tails in front.

The shrimp packaging tray of claim 2 is characterized in that, in the invention of claim 1, the raised portion is formed to be equal to or lower than the height of the flange .

According to a third aspect of the present invention, there is provided a shrimp packaging tray according to the first or second aspect of the invention, wherein the bulging portion is formed 7 to 50 mm higher than the raised portion .

Further, the shrimp packaging tray of claim 4 is characterized in that, in the invention of any one of claims 1 to 3, the bulging portion is provided with an inclined surface inclined downward toward the front. .

  The shrimp packaging tray of claim 5 is the invention according to any one of claims 1 to 4, wherein the lengths A, B, and C of the rear part, the intermediate part, and the front part in the front-rear direction are as follows: 0.5 ≦ A / C ≦ 2.0 and 1.2 ≦ B / A are satisfied.

  The shrimp packaging tray of claim 6 is characterized in that, in the invention of any one of claims 1 to 5, the entire tray is formed of a synthetic resin foam.

According to the present invention of claim 1 above, the trunk end and head of the shrimp to be placed on the rear side are placed on the bulging part formed at the rear part, and the tail part is placed on the raised part formed at the intermediate part, The shrimp placed on the front side is placed on the tail part of the rear shrimp, and the tail part is placed on the base formed on the front part, etc. Yes, you can use a rug and enhance the volume of shrimp without folding or rolling it. Moreover, the volume feeling of the stored shrimp can be drawn by making a bulging part higher than a surrounding flange. That is, after packaging, the portion of the tray that is visible to the consumer is the flange, but the presence of the flange lower than the stored item increases the volume of the stored shrimp. In addition, since the shrimp is placed on the bulging part, the bulging part, and the pedestal part, it is positioned above the bottom wall top surface with a gap, so that it does not come into contact with the juice that oozes out from the shrimp, and the quality may be impaired. Absent.

Moreover, according to this invention of Claim 2, it becomes a thing preferable in achieving the original purpose of a packaging container. This is because the height of the raised portion can increase the volume of the shrimp, but if the height of the raised portion is too high, it may be difficult to stably store and package the shrimp. This is because there is a concern that the original purpose of the packaging container cannot be achieved.

In addition, according to the present invention of claim 3, the shrimp can be placed at a preferable angle. This is because the shrimp is placed on the tray at a steep angle if the height difference between the bulge and the bulge is large, and the shrimp is placed on the tray at a gentle angle if the height difference is small. It is because it will be mounted on.

Further, according to the present invention of claim 4, the shrimp can be placed at a preferable angle.

  Further, according to the present invention of claim 5, when the tray is transported by the belt conveyor, the intermediate portion of the tray abuts uniformly on the belt conveyor without being biased, so that the row is not disturbed. Can be transported.

  Moreover, according to this invention of Claim 6, above, heat insulation and cushioning properties are high, and the quality of shrimp can be maintained.

Hereinafter, embodiments of the above-described shrimp packaging tray according to the present invention will be described in detail with reference to the drawings.
1 is a perspective view showing a shrimp packaging tray according to the present invention, FIG. 2 is a cross-sectional view of a portion along line XX in FIG. 1, and FIG. 3 is a portion along line YY in FIG. FIG. 4 is a plan view of the shrimp packaging tray with the shrimp partially placed thereon.

  The illustrated shrimp packaging tray (hereinafter referred to as a tray) 1 is a rectangular tray having a bottom wall 1a and a peripheral wall 1b. A flange 2 is formed around the tray, and a plurality of raised portions 3 are formed in the middle. The bulging part 4 higher than the said flange 2 and the protruding part 3 is formed in the rear part over the substantially right and left whole length, and the base part 5 which mounts a shrimp tail is formed in the front part. . In addition, it is preferable to form the flanges 2 formed around the tray so as to have substantially the same height in order to achieve a desired effect such as producing a sense of volume of the stored items.

In the front row and the rear row of the raised portions 3 formed in the intermediate portion, seven trapezoid raised portions 3a, 3a,... Each having a flat triangular shape are formed. Three trapezoidal ridges 3b, 3b, 3b having a flat top portion extending in the form of are formed.
The height of the raised portions 3 can increase the volume of the shrimp, but if the height of the raised portions 3 is too high, it may be difficult to stably store and package the shrimps. There is a concern that the original purpose of the packaging container cannot be achieved. Therefore, it is preferable that the height of the raised portion 3 is substantially the same as or slightly lower than the height of the flange 2.
In addition, the shape of the raised portion 3 is preferably a triangular shape or a parallelogram shape from the viewpoint of stably storing and packaging shrimp, but other polygonal shapes, circular shapes, elliptical shapes, and the like. It doesn't matter. For the same reason, the raised portion is preferably formed in a trapezoidal shape, but it may be a raised portion formed entirely by a rounded portion without having a flat portion at the top.

Further, the bulging portion 4 formed at the rear portion of the tray is provided with an inclined surface 4a that is higher than the height of the flange 2 and the raised portion 3 and is inclined downward toward the front as shown in FIG. Yes. The inclined surface 4a is formed with a circular convex portion 4b indicating the placement position of the shrimp.
The difference in height of the bulging portion 4 with respect to the raised portion 3 determines the slope of the shrimp disposed on the rear side. If the difference in height of the bulging part 4 with respect to the bulging part 3 is large, the shrimp will be placed on the tray at a steep angle. If the difference in height is small, the shrimp will be on the tray at a gentle angle. Will be placed. From this viewpoint, the height difference h (see FIG. 2) of the bulging portion 4 with respect to the raised portion 3 is preferably 7 to 50 mm, and more preferably 10 to 30 mm. In addition, when the bulging part 4 is provided with the inclined surface 4a as shown in FIG. 2, or when the bulging part 3 is provided with the inclined surface, the bulging part and the protruding part are provided. The difference in height of the bulging portion 4 with respect to the bulging portion 3 is obtained with reference to the highest height portion.
Moreover, the volume feeling of the stored shrimp can be drawn by making the bulging part 4 higher than the surrounding flange 2. That is, after packaging, the portion of the tray that can be seen by the consumer is the flange 2, but the presence of the flange lower than the stored item increases the volume of the stored shrimp.

  Further, a rib 6 is formed between the raised portions 3 and 3 and between the raised portion 3 and the bulging portion 4 to connect them in the front-rear direction. Thereby, the bending strength of the tray 1 is increased, and the warpage of the tray 1 during film packaging can be effectively prevented.

  The raised portion 3, the bulging portion 4 and the rib 6 are all formed so that the horizontal cross section becomes smaller upward. When the trays 1 are stacked, each portion of the upper tray 1 It is fitted to each part of the tray 1 so as not to be bulky in the height direction.

Moreover, the base part 5 formed in the front part of a tray is provided with the inclined surface 5a which inclines toward the bottom wall 1a from the flange 2, as shown in FIG. 2, and the tail of shrimp is mounted in this inclined surface 5a Is done. Due to the presence of the inclined surface 5a, the liquid juice that exudes from the shrimp when the frozen shrimp is thawed is guided along the inclined surface 5a into the upper surface of the bottom wall 1a, that is, the tray 1. There is no risk of contaminating the outside. In addition, the packaging workability for arranging shrimp is improved.
The shape of the pedestal 5 is not limited to the inclined surface, but can be formed as a step having a height higher than the bottom wall of the intermediate part. In that case, the bottom wall of the stepped portion is formed to be flush with the flange 2, lower than the flange 2, or higher than the flange 2 and lower than the bulging portion 4. .

Further, the tray 1 is formed with a length A in the front-rear direction in which the bulging portion 4 is formed, a length B in the front-rear direction in which the raised portion 3 is formed, and the base portion 5. A length C (see FIG. 2) in the front-rear direction of the front portion is formed so as to satisfy the following expressions (1) and (2).

0.5 ≦ A / C ≦ 2.0 (1)
1.2 ≦ B / A (2)

That is, when the expression (1) is satisfied, the length A of the rear portion of the tray 1 and the length C of the front portion are not so different, and when the expression (2) is satisfied, The length B of the part is longer than the length A of the rear part.
When such a tray 1 is conveyed by a belt conveyor, the intermediate portion of the tray 1 uniformly contacts the belt conveyor without being unevenly contacted, so that it can be conveyed without causing row disturbance. This effect is particularly effective in a packaging system performed with a belt conveyor conveying means.
From this viewpoint, the condition of the above formula (1) is more preferably 0.6 ≦ A / C ≦ 1.7, and particularly preferably 0.7 ≦ A / C ≦ 1.4. The condition of the formula (2) is more preferably 1.5 ≦ B / A, and particularly preferably 1.8 ≦ B / A. The upper limit of B / A is approximately 12.

The tray 1 is entirely formed of a synthetic resin foam.
Synthetic resin foams are polystyrene, styrene-butadiene copolymer, acrylonitrile-styrene copolymer, impact polystyrene, acrylonitrile-butadiene-styrene copolymer, styrene-maleic anhydride copolymer, styrene-polyphenylene oxide copolymer. It is composed of a polymer, a mixture of styrene and polyphenylene oxide, a foamed synthetic resin sheet made of polyethylene, polypropylene, etc. (foaming ratio of 2 to 30 times, preferably 0.5 to 7 mm in thickness), etc., and these sheets are used. Thus, it is formed by vacuum forming, pressure forming, match mold forming, folding forming or the like.

As shown in FIGS. 2 and 4, on the tray 1 formed in this way, the trunk end Ea of the shrimp E to be arranged on the rear side is placed on the bulging portion 4 formed at the rear, and the tail Eb is placed in the middle. The body part Ea of the shrimp E placed on the raised part 3 formed on the front part is placed on the tail part Eb of the rear shrimp E, and the tail part Eb is placed on the base part 5 formed on the front part.
When the shrimp E is placed on the tray 1, a rug such as air-filled cushioning material, urethane foam, polystyrene resin foam molded article slice, work cloth, unemployed cloth, paper, etc. is laid on the tray 1. The shrimp E may be placed thereon.

  And the tray 1 which accommodated the shrimp E is made into film packaging, such as stretch packaging and shrink packaging, and is conveyed to the freezing processing chamber, and then is quickly frozen and stored in the freezing processing chamber. In each of the above steps, a belt conveyor is usually used as a tray conveying means.

  The shrimp E frozen in this manner is transported to the store as it is and arranged on the display shelf. As the shrimp E is thawed, the soup may ooze out from the shrimp, but the soup is stored on the bottom wall 1 a between the raised portions 3 and 3.

  FIG. 5 shows a modification of the tray 1 according to the present invention. The tray 1 is formed such that the shape of the pedestal 5 is not a sloped surface but a stepped portion having a height higher than the bottom wall of the intermediate portion. FIG. 5 is different from the above embodiment in that it is formed flush with the flange 2. Other portions are formed in the same manner as in the above embodiment.

  The embodiment of the shrimp packaging tray according to the present invention has been described above. However, the present invention is not limited to the embodiment described above, and the scope of the technical idea of the present invention described in the claims. Of course, various modifications and changes are possible.

It is the perspective view which showed the shrimp packaging tray which concerns on this invention. It is sectional drawing of the part which follows the XX line in FIG. It is sectional drawing of the part which follows the YY line in FIG. It is a top view of the shrimp packaging tray in a state where the shrimp is placed. It is sectional drawing which showed the modification of the tray for shrimp packaging which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shrimp packaging tray 1a Bottom wall 1b Perimeter wall 2 Flange 3 Raised part 3a Triangular trapezoidal raised part 3b Strip-like trapezoidal raised part 4 Swelling part 4a Inclined surface 4b Convex part 5 Base part 5a Inclined surface 6 Rib
E shrimp Ea shrimp end Eb shrimp tail

Claims (6)

A rectangular or square tray having a bottom wall and a peripheral wall, with a flange formed at the periphery, and a plurality of ridges protruding upward from the bottom wall at the middle, and a substantially right and left full length at the rear The bulging part which mounts the trunk part end and head of the shrimp which is higher than all the flanges and the raised parts is formed, and the base part which mounts the tail of the shrimp is formed in the front part. A tray for shrimp packaging, characterized by The shrimp packaging tray according to claim 1 , wherein a height of the raised portion is equal to or lower than a height of the flange . The shrimp packaging tray according to claim 1 or 2, wherein the bulging part is formed 7 to 50 mm higher than the raised part . The shrimp packaging tray according to any one of claims 1 to 3, wherein the bulging portion includes an inclined surface that is inclined downward toward the front . The lengths A, B, and C in the front-rear direction of the rear part, the intermediate part, and the front part satisfy the following expressions (1) and (2), respectively: Shrimp packaging tray according to any one of the above.
0.5 ≦ A / C ≦ 2.0 (1)
1.2 ≦ B / A (2)   The shrimp packaging tray according to any one of claims 1 to 5, wherein the entire tray is formed of a synthetic resin foam.

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