JPH0236472B2 - TAMAGOYOKI - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention is mainly used as a packaging container for distribution of chicken eggs, and the container body is formed by vacuum or pressure molding using a synthetic resin sheet material. The present invention relates to an egg container using a film-like sheet material in which one side of a body part and a lid part are integrally connected via a connecting part so as to be freely openable and closable.

(Prior art) This type of container, when storing items such as eggs, polymerizes the free ends of the body and lid, and then secures the overlapped portions with staples, welding, etc. Usually, the entire container is sealed by doing this, but it is usually sealed very tightly to prevent accidental opening during the distribution stage.

Therefore, it is troublesome and difficult to open when taking out articles.

The conventional and common way to open the package is to hold one free end piece with your right hand at one longitudinal end of the overlapping free end piece.
By grasping the other free end piece with your left hand and operating the two pieces in the direction of pulling them apart, you can first break the staples and binding part at one end, and then destroy the fastening parts one after the other. However, with this opening method, the fracture progresses with a time lag, and the concentrated stress before the fracture is released upon fracture, causing a large impact force to act on the entire container. Due to the large bonding force and the need for a large force to break it,
It was difficult to open, and especially fragile containers such as eggs required careful handling, making opening even more troublesome and troublesome.

In view of this, the applicant first proposed the
No. 52903 discloses an invention relating to an egg container made of a synthetic resin sheet material, in which a cutting cable is arranged along the inner side of the connecting part between the body part and the lid part, and has a length extending substantially over the entire length of this joint part. is suggesting.

Therefore, the egg container according to the above invention can be used, for example, as shown in FIG. By pulling and moving it toward the other end in this state, the force of the moving operation is concentrated on the connecting portion, and this connecting portion is also relatively light, as if continuously cut with a sharp cutter knife. This allows for reliable, easy, and smooth cutting with a small amount of force.

Egg containers with this structure have been widely accepted in the market because they allow the containers to be opened by cutting them extremely easily and safely, as described above, and egg containers using such cable-based opening methods are currently on the market. It now accounts for the majority of the total.

On the other hand, barcodes (posmarks) for automatic product readers have come to be used on product containers and labels, especially food containers, but the fate of these egg starter containers is that both the body and the lid of the container Since most of it is formed into concave and convex shapes for storing eggs, the concave part must also be the size of an egg, so it is necessary to print a barcode or stick a piece of printed paper on it to display it on a flat surface. There was no part with a surface. Therefore, it was thought by those skilled in the art that it would be difficult to use barcodes for egg containers. However, the applicant started research on egg containers as soon as possible to make this possible.
As seen in JP-A No. 59-84773, a series of flat surfaces are formed between the adjacent recesses of the egg storage recesses, and the barcode is directly printed on the flat surfaces. The company has developed a technology for attaching printed paper labels and has already released it to the public.

(Problem to be solved by the invention) In this way, barcode display, which was considered difficult in the industry, is now possible even on egg containers that are mostly uneven, making handling during product distribution very convenient. However, as mentioned above, forming a flat surface as a structure like the one disclosed in the above-mentioned application on an uneven egg container is not suitable for the original container as an egg container. From the point of view of the safety protection of individual eggs, which is the purpose, the area where the flat surface can be formed is naturally limited, and the area where the flat surface can be formed has to be as large as necessary to display the barcode. It was not possible to overcome the constraint that the manifestation had to be carried out with extreme precision.

On the other hand, there is a latent demand for displaying the date of production, the period during which the eggs can be eaten raw, and the name of the producer as much as possible on the egg container. However, as described above, most of the container is uneven, so it has not been possible to overcome the drawback that it is difficult to clearly display these markings.

Therefore, the applicant hereby proposes an egg container that aims to solve these problems and has been able to solve them. In addition, it can be carried out without any problem even if the egg container has the above-mentioned cable-based opening means, and furthermore, there is no problem in closing the lid by stapling or fusing, which is commonly used in the past. To provide an egg container in which a conventional opening means can be used without causing any damage or modification.

(Means for Solving the Problems) The present invention is capable of achieving these objects, and its configuration will be explained based on FIGS. 1 to 3 corresponding to embodiments. It consists of a body part A and a lid part B that can be opened and closed, and a connecting part C that connects both parts A and B on one side. In an egg container in which recesses 1a and 1b and partition walls 2a and 2b are respectively formed to form an egg holding space in a closed position, the body part A and the lid part B
The recessed proximal end portion of the side wall forming at least one of the recesses 1a, 1b located at the end in the direction perpendicular to the connecting portion C is the outermost end F of the flange 13.
The vertical wall surfaces 4a, 4b of the bulges 3a, 3b are formed by protruding to the position of .
This is an egg container made of a flat surface.

(Function) Since the present invention is configured as described above,
As shown in Figures 1 and 3, body part A and lid part B
In the closed position, the wall surface 4 consisting of a flat surface
A, 4b can be used by pasting a label 11 printed with required information, such as production date, raw edible period, producer, bar code 12, etc. Moreover, even if cables for opening the package are provided, the flat wall surfaces 4a and 4b are installed in areas where the cables are not installed, so that they do not interfere with the opening operation.

(Example) Representative examples of the present invention will be described below based on the drawings.

The first embodiment diagrams shown in FIGS. 1 and 3 are for a container containing 10 eggs.
The figure is a perspective view of the egg container body A and lid B in a closed position, and shows the state immediately before the printed label 11 is attached.

As shown in FIG. 3, the present invention has a body part A and a lid part B that can be opened and closed normally, and a connecting part C that connects both parts A and B on one side. , recesses 1a and 1b for forming egg holding spaces at 10 opposing locations between body part A and lid part B, and partition walls 2a and 2b that partition these recesses 1a and 1b.
and a side wall forming two pairs of recesses 1a and 1b on the end side in the direction perpendicular to the connecting part C of the body part A and the lid part B, that is, on the left side in the figure. The proximal end portion of the recess is projected to the outermost end F of the flange 13 to form the bulges 3a, 3b (in actual manufacturing, the ends of the bulges 3a, 3b are When the lid part B and the body part A are in the closed position, the vertical wall surfaces 4a and 4b forming the bulging parts 3a and 3b (cutting the base material at the edge) are substantially continuous as shown in FIGS. 1 and 2. It is constructed to form a flat surface.

Further, in this embodiment, on the inner surface side of the connecting portion C, a cutting cable D made of thread, monofilament, narrow tape, etc. is provided along the longitudinal direction of the connecting portion C.
is arranged, and its both ends are fixed to the connecting part C 10
has been done. Further, cuts 9, 9 are formed on both longitudinal ends of the connecting portion C on both sides with the cutting cable D interposed therebetween, and the free end portion formed by the cuts 9, 9 is A knob 8 is provided when the cutting rope D is opened and closed.

Thus, the egg container thus constructed stores eggs E in each recess 1a of the body A as shown in FIG. 2, and places eggs E on the body A as shown in FIGS. Free edge portions 6a and 6b of both parts A and B, or triangular non-recessed portions 7a and 7b that cover the lid portion and are connected to the free edge portions.
Sealing such as stapling or spot fusing is performed using a conventionally commonly used sealing machine such as a stapler or a spot heat sealing machine.

On the other hand, in this sealing position, as shown in FIG. 1, a label 11 such as paper or resin film on which necessary information is printed is pasted on the flat wall surfaces 4a and 4b of the bulges 3a and 3b. .

The egg storage packaging container formed in this way is
distributed in the market.

To open the package, as shown in FIG. 1, pinch the knob 8 formed at the end of the connecting part C and pull it outward to release the cutting cord as described above. The presence of D causes the connection C to be severed. In addition, in the case of an egg container that is not provided with a cord D for opening, the container must be opened by hand.

Next, another embodiment of the present invention will be described with reference to FIGS. 4 and 5.

The second embodiment shown in FIGS. 4 and 5 has a structure in which the amount of protrusion of the bulges 3a and 3b toward the outermost end F of the flange 13 shown in the first embodiment is minimized. In an example showing the structure, as shown in FIG.
It is formed so that the wall surfaces 4a and 4b on the outer end F side are located close to the side surface of the egg content E like the bulges 3a and 3b. The present invention can be implemented as such a structure.

Although the embodiments considered to be representative of the present invention have been described above, the present invention is not limited only to the above-mentioned embodiments. It can be implemented with appropriate modifications within the scope of achieving the effects described below. That is, it may not be provided with a cord for opening.

Further, typical examples of other modifications are as follows.

The bulges 3a and 3b are not necessarily the two pairs of recesses 1a and 3b.
It is not necessary to form a pair of recesses 1a and 1b, depending on the required size of the flat display surface.
1b, and may be formed not only on one side of the lateral outer end but also on both lateral outer ends. Furthermore, by attaching the printed label 11 to the wall surfaces 4a and 4b after the eggs are housed, it is advantageous in that the label displaying the date of production, the last date for safe consumption of raw food, etc. can be reliably attached. Moreover, it is advantageous in that it can be automatically affixed when the egg storage packaging container is transferred by a conveyor, but it does not necessarily have to be attached to the egg storage container. This may be done before housing, or it may be applied during the molding of the container, or it may be applied to the sheet-like material before the container is molded, and then molded. In addition, when forming the container or attaching it to a sheet material in this way, instead of attaching the display label 11, it is also possible to use a method of directly printing on the container.

In addition, although the above embodiments have been shown as containers that are opened using ropes for opening the container, the present invention can also be applied to containers that have other opening means that do not use ropes for opening the container. It is.

Furthermore, the means for disposing the unsealing cable is not limited to fixing only both ends as in the embodiment, but may also be fixed over the entire length, by looping the cable around the inside and outside of the connecting part. It will be easily understood that the invention may be implemented as a suitable means.

In carrying out the present invention, the inventor formed the bulges 3a and 3b on the free end edges 6a and 6b sides of both parts of the container, and formed the free ends along the wall surfaces 4a and 4b of the bulges. By cutting off the edges 6a, 6b, the bulging wall surfaces 4a, 4b are connected in a substantially continuous manner in the lid closed position, and both wall surfaces 4a, 4
Attempts have also been made to attach a printed label 11 between parts A and B, and to seal both parts A and B of the container by the adhering action of this printed label 11, but with this structure, conventional However, it is necessary to develop a new machine to maintain the closed position of the container when pasting the printed label 11, and the total weight of the eggs is quite heavy. In some cases, there is a risk that the adhesive strength of the printed label 11 alone may cause the package to be opened unexpectedly, and there is always a risk of accidents such as eggs falling and being damaged. are excluded from the constituent requirements of this application.

(Effects of the Invention) As is already clear from the above description, the present invention has a flat bulging wall surface formed on the outer end side perpendicular to the connecting portion, so that automatic attachment means such as a container opening cord, and a stapler can be used. The various labels that have been latently required for egg containers for a long time can be displayed without causing any problems with sealing devices such as needle clasps.
There was no problem in forming the concave part as an egg container, and there was no need for extra label material, making it possible to easily display information by utilizing the wide flat area above and below the lid and body. .

Furthermore, in a structure in which a cord for opening is provided, the flat wall surface does not interfere with the opening operation.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the container in a closed position, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a perspective view of the container in an open position, and Fig. 4 is a perspective view of the container showing another embodiment. A perspective view of the closed position, and FIG. 5 is a vertical sectional view taken along the line V-V in FIG. 4. In the figure, A is the body, B is the lid, C is the connecting part, F is the outermost end, 1a and 1b are the recesses, 2a and 2b are the partition walls,
3a and 3b are bulges, and 4a and 4b are wall surfaces.

Claims (1)

[Claims] 1. Body part A and lid part B that can be opened and closed, and both parts A,
It consists of a connecting part C that connects B on one side,
An egg in which concave portions 1a, 1b and partition walls 2a, 2b are formed at a plurality of opposing locations of the body portions A, B, respectively, for forming an egg holding space when both the body portions A, B are in a closed position. In the container, a concave proximal end portion of the side wall forming at least one concave portion 1a, 1b located at the end in the direction perpendicular to the connecting portion C among the body portion A and the lid portion B is attached to the flange 13. An egg container in which bulging portions 3a and 3b are formed by protruding to the outermost end F, and vertical wall surfaces 4a and 4b of the bulging portions 3a and 3b are formed into flat surfaces. 2. The egg container according to claim 1, characterized in that the egg container is provided with a cord D for opening the container.