JPH0523457Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a packaging container suitable for storing perishable foods such as meat and fish, and in particular a transparent film for protecting the contents from the outside air. This relates to a packaging container that is surrounded by a container.

(Prior Art) Generally, when food items such as meat, fish, or sashimi are sold individually, they are placed in a shallow packaging container and then wrapped in a transparent film. In this way, the inside can be clearly seen, and the contents do not come into direct contact with the outside air, which leads to sales promotion.

However, this type of packaging container is designed to have a shallow bottom so that the contents can be clearly seen, so if a transparent film is placed over the container while the contents are inside, the transparent film will cover the contents. come into direct contact with objects. In this way, when the transparent film comes into contact with the contents, not only does the appearance of the foodstuffs look bad, but it also reduces the freshness of the foodstuffs.

In order to solve this problem, it has been proposed to place a part of the transparent film at a predetermined height from the packaging container using a spacer, as shown in, for example, Japanese Utility Model Publication No. 62-31417. It is being The "food packaging package" shown in this Publication of Utility Model Publication No. 62-31417 is defined as "a food packaging package in which food in a tray is wrapped with a transparent film," according to the claims for the utility model registration in that publication. A vertical member is connected to the bifurcated portion, and an inclined plate is further connected to the vertical member to form a plastic spacing holder, and the bifurcated portion of the spacing holder is engaged with the side wall of the tray to hold the food. This food packaging pack is characterized by packaging a loaded tray by pressing the upper surface of an inclined plate with a transparent film, but it is sufficiently effective in keeping the transparent film a predetermined distance from the container. However, it includes the following problems:

In other words, in the case of the "food packaging pack" shown in the above publication, first, a separate "space holder" is required.
However, this is a cause of increasing the cost of "food packaging packages". Since this type of food container is generally disposable, it is necessary to keep the cost as low as possible, but this point is not taken into consideration at all. In addition, this "space holder" is used by filling the container with meat, etc., then engaging the "bifurcated part" with the side wall of the container, and finally covering it with a transparent film, but this process is extremely difficult. It is very troublesome. In other words, this "space holder" must be positioned by some means so that it does not shift when applying the transparent film, and this is usually done by the operator holding it down with his or her fingers. This is the reality, and this makes the work difficult.

Therefore, in view of the above-mentioned actual situation regarding this type of packaging container, the inventor of the present invention has developed a method that not only can hold the transparent film at a predetermined height when covering it with a transparent film, but also reduces costs and makes the work easier. As a result of intensive research on containers, they newly found that forming the supporting portion of the transparent film integrally with the container body produces good results, and completed the present invention.

(Problem to be solved by the invention) The present invention has been made based on the above-mentioned circumstances, and the problem to be solved by the invention is to solve the problem by using a supporting part that maintains the transparent film at a predetermined height in conventional packaging containers. The overall cost is high, and the work efficiency is poor due to the separate support part.

The purpose of the present invention is to provide reliable support for the transparent film by integrally forming the support portion that supports the transparent film at a predetermined distance from the container body. What can be achieved is, of course, to provide a packaging container with a simple structure that does not increase the cost of the container as a whole and can facilitate the work of covering it with a transparent film.

(Means for Solving the Problems) In order to solve the above problems, the means taken by the present invention are explained with reference to the drawings corresponding to the embodiments. In the packaging container in which the supporting part 20 of the film 30 is integrally formed on one side edge of the container body through the bent part 13, the supporting part 20 is connected to the supporting surface 21 continuous to the bent part 13.
and leg portions 22 formed integrally with the support surface 21 on both sides of the support surface 21.
is biased to one side from the center of the side wall 11 where this support part 20 is formed, and the side wall 11 into which this support part 20 is folded
This packaging container 10 is characterized in that a fitting stepped portion 14 is formed on the inner surface of the container 10, into which the leg portion 22 of the support portion 20 is fitted and held.

That is, the packaging container 10 according to the present invention is provided with a support portion 20 that is integrally formed at the bent portion 13 of the flange portion 12 located on the outer periphery of the side wall 11. 10 is integrally formed with the supporting portion 20 from a foamable resin sheet. Further, the support portion 20 includes a support surface 21 that is continuous with the packaging container 10 at the bent portion 13, and leg portions 22 that are integrally located on both sides of this support surface 21. When the section 20 is folded into the container body, the leg section 2
The notch 23 formed in 2 is brought into contact with the upper surface of the flange part 12, and a part of the leg part 22 is formed on the inner surface of the side wall 11.
It is designed to fit and be held between the two.

(Functions of the invention) The packaging container 10 according to the invention configured as described above has the following effects.
This effect will be explained together with the mode of its use.

First, since the packaging container 10 according to the present invention is integrally formed from a foamable resin sheet, it is not only easy to manufacture but also very inexpensive. In other words, as long as a mold for the packaging container 10 having the support portion 20 is prepared, the packaging container 10 according to the present invention can be produced continuously and in large quantities using a foamable resin sheet, and as described above. There is no need to prepare a separate mold or material as in the case of the conventional "spacer".

Furthermore, since the support portions 20 for the packaging container 10 are formed at locations shifted from the center of the side wall 11 to one side, a mold is formed in which the support portions 20 are arranged alternately. As a result, the foamable resin sheet can be used without waste, and material costs can be saved.

For the packaging container 10 formed in this way, meat etc. are arranged inside the container body.
At this stage, as shown in FIG.
is in a state of expanding outward from the flange portion 12 of the packaging container 10. In other words, the support portion 20 does not get in the way of storing meat or the like.
Of course, since this support part 20 is integrated with the side wall 11 of the packaging container 10 at the bending part 13, it is natural that the support part 20 will not be exposed during this operation, but also during transportation up to that point. A positional shift with respect to the packaging container 10 will not occur.

Once the above arrangement of the meat or the like in the container body is completed, the operator folds the support portion 20 into the container body and wraps the transparent film 30 over the entire packaging container 10. In other words, the operator
0, and fold the support part 20 into the container body until the notch 23 of each leg part 22 comes into contact with the inner surface of the side wall 11 and the upper surface of the flange part 12. As a result, the leg portions 22 of the support portion 20
As shown in FIG. , to ensure that it does not reverse. Thereafter, the entire packaging container 10 is covered with a transparent film 30, and the contents such as meat are protected by the transparent film 30. At this time, if the transparent film 30 is placed on the support surface 21 of the support section 20 first, the operation becomes easier. This is because the transparent film 30 further prevents the support portion 20 from lifting up.

As described above, the supporting portion 20 is bent into the container body, and the entire packaging container 10 is covered with the transparent film 3.
If wrapped by 0, as shown in Figure 2,
The transparent film 30 is supported by the support portion 20 at a predetermined distance above the flange portion 12 of the packaging container 10. That is, the support part 2
0 support surface 21, when the support section 20 is folded into the container main body, each of the legs 22 located on the left and right sides of the support surface 21 has a notch 23 that is attached to the packaging container 1.
Since it is supported on the 0 side, as shown in Figure 2,
This results in a state where it stands up from the flange portion 12 of the packaging container 10. Since the transparent film 30 is located on the upper surface of this rising support surface 21,
This transparent film 30 is located a predetermined distance above the flange portion 12 of the packaging container 10 and does not come into direct contact with the items stored in the container body.

Note that the support surface 2 of the support section 20 in this embodiment
1 is formed so that its upper surface is curved, so the transparent film 3 placed over it
0 means that it will not be damaged.

Moreover, this packaging container 10 may be heated in a microwave oven with items placed therein, and the transparent film 30 may expand and then contract again due to this heating. Even if such shrinkage due to heating occurs in the transparent film 30, the transparent film 30 will not shrink from the supporting portion 20.
The transparent film 30
Problems such as contact with stored items will not occur.

(Example) Next, the present invention will be described in detail according to an example shown in the drawings.

First, the packaging container 10 of the present invention is formed into the state shown in FIG. 3 by cutting out a foamable resin sheet. In other words, this packaging container 10 is molded to have a supporting portion 20 that is continuous via a bent portion 13 to a part of a flange portion 12 that is integrally formed on the outer periphery of a side wall 11. be. In addition, in the packaging container 10 in this embodiment, the side wall 11 on the side where the support portion 20 is continuously formed is formed higher than the side wall 11 located on the opposite side. That is, in this packaging container 10, the side wall 11 on which the support portion 20 is formed is on the rear side, and the contents such as meat stored in this packaging container 10 are stored in the packaging container 10. 10 is placed on a display shelf, the inside can be clearly seen.

Further, the support portion 20 in this embodiment is formed at a position slightly shifted to either side from the center of the side wall 11 of the packaging container 10. This is because when forming the packaging container 10 using a continuous foamable resin sheet, it is necessary to secure the material for the part that will become the support part 20, but the formation position of the support part 20 is determined in this way. By slightly shifting the support part 20 from the center to either side, it is possible to place the support part 20 against the other packaging container 10, thereby making it possible to make a large number of pieces with one mold. This is because materials can be used without wastage and costs can be reduced.

Further, in this packaging container 10, a fitting stepped portion 14 into which each leg portion 22 on the support portion 20 side can be fitted and held is formed at a corresponding location on the inner surface of the side wall 11. When the support part 20 is folded into the container main body of the packaging container 10, the lower end of each leg part 22 is fitted and held in the fitting step part 14. By abutting the outer surface of the lower end of each leg portion 22 against the inner surface of the support portion 22, the folded support portion 20 is prevented from shifting due to subsequent lifting or inversion.

Now, there is a support part 20 that is continuous to the flange 12 at the bending part 13, that is, to the packaging container 10. It is mainly composed of a leg portion 22 located at. Support surface 2
1, as shown in FIGS. 1 and 2, the bent portion 1
The transparent film 30 has a curved portion extending from the support surface 21 and a portion bending approximately perpendicularly from this portion to prevent the transparent film 30 from being damaged when the transparent film 30 comes into contact with the supporting surface 21. There is.

Each leg portion 22 is formed integrally with the support surface 21, and is actually formed by stamping the foamed resin sheet material without cutting it. As a result, the support part 20 has a substantially box-like shape due to the support surface 21 and both legs 22, and the support surface 21 and both legs 22 are made to have high rigidity so as to maintain a predetermined shape as the support part 20. . In addition, in this embodiment, as shown in FIGS. 1 and 2, the support surface 21 and the leg portion 2
A flange 24 is formed integrally with the tip of the support surface 21 and the leg 22, and the leg 22 ensures that the support surface 21 and the leg 22 are integrated.

A notch 23 is formed in each leg 22, and each of these notches 23 is used to fold the support part 20 into the container body from the state shown in FIG. 3 to the state shown in FIG. When pressed, it engages with the inner surface of the side wall 11 of the packaging container 10 and the upper surface of the flange portion 12. In this way, each leg 22 on the support part 20 side
comes into contact with the corresponding part on the packaging container 10 side, so that the support surface 21 of the support portion 20 is brought into contact with the packaging container 10.
It is placed at a predetermined position relative to the

The support portion 20 of the packaging container 10 configured as described above is folded into the container body, and then the whole is wrapped with a transparent film 30 to protect the meat, sashimi, etc. inside the container body. . As mentioned above, the support surface 21 of the support section 20 guides the transparent film 30 upward from the flange section 12 of the packaging container 10 as shown in FIG. The contents inside the container body are not touched directly.

(Effects of the Invention) As explained above, in the present invention, as exemplified in the above embodiment, "the container body is formed integrally with a foamable resin sheet, and a bent In a packaging container in which the supporting portion 20 of the film 30 is integrally formed via the portion 13, the supporting portion 20 is connected to the supporting surface 21 continuous to the bent portion 13.
and leg portions 22 formed integrally with the support surface 21 on both sides of the support surface 21.
is biased to one side from the center of the side wall 11 where this support part 20 is formed, and the side wall 11 into which this support part 20 is folded
The feature lies in the fact that a fitting stepped portion 14 is formed on the inner surface of the container, into which the leg portion 22 of the support portion 20 is fitted and held. By forming the supporting part integrally with the container body, it is possible to reliably support the transparent film, and it does not increase the cost of the container as a whole, making it easier to apply the transparent film. Therefore, a packaging container 10 that can be used in various ways can be provided with a simple structure.

That is, in the packaging container 10 according to the present invention, the transparent film 30 is attached to the flange portion 12 or the side wall 11.
Since the support part 20 to be positioned above is configured to be integrated with the packaging container 10 side via the bending part 13, this support part 20 is easily moved during transportation or storage inside the container body. Not only will they not be misaligned or lost, but they can also be integrally molded using the same foamable resin sheet, reducing the cost of this type of packaging container 10.

Further, when covering the entire transparent film 30, the support portion 20 of the packaging container 10 is simply folded into the container body and a part of the leg portion 22 is inserted into the fitting stepped portion 14.
By fitting and clamping the support part 20, the support part 20 is fixed, so that the work of covering the transparent film 30, which is performed after placing the stored items in the container main body, can be performed very easily. In particular, the support part 20
Since the support surface 21 and each leg 22 are integrally formed into a substantially box shape, its rigidity is high, and it can be easily folded during folding work or when supporting the transparent film 30. The transparent film 30 does not lose its shape, making it easier to work with, and the transparent film 30 can be supported reliably.

[Brief explanation of the drawing]

FIG. 1 shows a packaging container according to the present invention, in particular, a perspective view showing a state in which the support part is folded into the container body, FIG. 2 is a partial sectional view taken along the line - in FIG. 1, FIG. 3 is a perspective view of the packaging container showing the support portion before folding. Explanation of symbols, 10...Packaging container, 11...Side wall, 12...Flange portion, 13...Bending portion, 14
. . . Fitting step portion, 20 . . . Support portion, 21 . . . Support surface, 22 .

Claims (1)

[Claims for Utility Model Registration] It is integrally formed from a foamable resin sheet,
A packaging container in which a film support part is integrally formed on one side edge of the container body via a bending part, the support part being a support surface continuous to the bending part,
The supporting surface is provided with leg portions formed integrally with the supporting surface on both sides thereof, and the bent portion of the supporting portion is biased to one side from the center of the side wall on which the bent portion is formed. A packaging container characterized in that a fitting stepped portion is formed on the inner surface of the side wall into which the supporting portion is folded, into which the leg portion of the supporting portion is fitted and held.