JP3103976U - Resin sheet packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure that a joining edge on a free end side of a lid body is always securely overlapped on a joining edge on a free end side of a container body with little displacement. To provide.
SOLUTION: A container body 1 and a lid 2 are formed in a substantially square shape, and one side thereof is integrally connected so as to be foldable via a hinge portion 3 for packaging made of a resin sheet. In the container, when the lid 2 is in an open state, protrusions 22 protruding upward are formed at one of four corners of the container main body 1 and the lid 2, so that the container main body 1 and the lid 2 The projection receiving portion 12 is formed at one of the other four corners for receiving the projection 22 and having a peripheral wall portion substantially in contact with the outer peripheral surface of the projection 22.
[Selection diagram] Fig. 1

Description

  The present invention relates to a structure of a packaging container made of a resin sheet in which a container body and a lid are integrally formed so as to be foldable and integrally connected at one side thereof via a hinge portion.

  2. Description of the Related Art Conventionally, this type of resin sheet packaging container has been known as a chicken egg packaging container in which, for example, an object to be packaged such as a chicken egg is stored and used in the container. In this chicken egg packaging container, the lid body is folded from the bent portion to the container body so as to be covered on the container body in an overlapping manner, and an adhesive is provided on the outer peripheral surface of the joint edge on the free end side and on one surface. The adhesive tape coated with is sealed in a U-shape when viewed from the side, and is adhered to the upper and lower surfaces to seal the tape.

The sealing means by the tape bonding is usually an automatic sealing means using a mechanical device, and the outer edge of the joining edge along the longitudinal direction of the container is transferred while the container in the closed position is being transported by the conveyor. Means is employed in which the upper and lower portions in the width direction of the tape are folded and adhered to the upper and lower surfaces of the container joining edge by a mechanical device while being applied to the middle portion of the upper and lower widths of the tape.
Japanese Patent No. 2706915 Japanese Patent No. 2863903

  In order to ensure automatic tape sealing means using this machine, it is necessary to ensure that the lid is always bent in a constant state and constant posture on the container body. That is, it is necessary that the joining edge on the free end side of the lid body be exactly overlapped on the joining edge on the free end side of the container body with little displacement. The present invention intends to provide a packaging container in which the joining edges of the free end side of the container body and the lid can be always overlapped in a tightly closed state in the closed position with little deviation. It is.

  In order to achieve this object, the resin sheet packaging container according to the present invention has a configuration in which a container body 1 and a lid 2 are formed in a substantially rectangular shape, and a hinge portion 3 is formed on one side thereof. A packaging container made of a resin sheet that is integrally connected so as to be foldable via a lid. When the lid 2 is in an open state, the packaging container is disposed on one of the four corners of the container body 1 and the lid 2 in an upward direction. A projection 22 is formed to project toward the outer periphery of the container body 1 and the lid 2, and to receive the projection 22 at the other four corners of the container body 1 and the lid 2, and to have a peripheral wall portion substantially in contact with the outer peripheral surface of the projection 22. This is a configuration in which the receiving portion 12 is formed.

  Since the present invention has the above configuration, when the lid is bent from the hinge portion and fitted on the container main body, when the lid is in the open state, one of the four corners of the container main body and the lid is A projection receiving portion formed with a projection projecting upward, receiving the projection at the other four corners of the container body and the lid, and having a peripheral wall portion substantially in contact with the outer peripheral surface of the projection. Is formed, the container body and the lid can be positioned almost firmly at the four corners. Therefore, in the closed position, the container body and the lid can always be fitted to the predetermined fitting posture that is originally planned, and the free-end-side joining edge between the container body and the lid can be kept in a position with little displacement. This has the effect of being able to be reliably sealed with an adhesive tape.

  Hereinafter, the configuration of the present invention will be described with reference to the accompanying drawings. 1 is a perspective view showing the overall shape of the container, FIG. 2 is a plan view of the container, FIG. 3 is a front view, FIG. 4 is a rear view, FIG. 5 is a right side view, and FIG. It is an expanded sectional view which followed the AA line.

  Thus, the container shown in this embodiment is intended for a egg packaging container for individually storing and packaging a total of 10 chicken eggs, that is, five rows and two rows in front and rear in FIG.

  This container for packaging eggs is a synthetic resin container in which a container main body 1 and a lid 2 are integrally connected to each other via a hinge 3 at one side thereof using a synthetic resin sheet material. After the eggs are individually stored in the ten egg-receiving recesses 11 formed in the container main body 1 of the container, the eggs are individually stored in the container, and then the lid 2 is bent from the hinge portion 3 and the container main body 1 is folded. 6, the joining edge 13 on the free end side of the container body 1 and the joining edge 23 on the free end side of the lid 2 are superimposed on each other, as shown in FIG. 23 are folded in a U-shape when viewed from the side with a sealing adhesive tape coated on one side with an adhesive, adhered in a state of being wrapped from the outside, and sealed.

  Although the embodiment considered to be representative of the present invention has been described above, the container according to the present invention is not limited to only the egg packaging container shown in the embodiment, for example, a container using a synthetic resin sheet material. Another form of synthetic resin container in which the main body and the lid are integrally connected so as to be foldable and integrated via a hinge at one side thereof may be used.

The perspective view which showed the container of this invention. The top view of FIG. The front view of FIG. The rear view of FIG. The right view of FIG. FIG. 3 is an enlarged sectional view taken along line AA of FIG. 2.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Container main body 2 Lid 3 Hinge part 12 Projection receiving part 13 Joining edge of container main body 22 Projection 23 Joining edge of lid

Claims (2)

A packaging container made of a resin sheet, in which a container body 1 and a lid 2 are formed in a substantially rectangular shape, and one side of the container body is integrally connected to be foldable via a hinge portion 3. When the lid 2 is in the open state, a projection 22 protruding upward is formed at one of the four corners of the container body 1 and the lid 2, and the other of the container body 1 and the lid 2 is formed. A resin sheet packaging container in which the projection receiving portions 12 are formed at four corners thereof and have the peripheral wall portions that receive the projections 22 and are substantially in contact with the outer peripheral surfaces of the projections 22. The resin container packaging container according to claim 1, wherein the container body (1) includes an individual concave portion (11) for receiving a lower half portion of the egg, and the lid (2) includes a concave portion (21) covering an upper surface of the egg.

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