JPH1035636A - Packaging container material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container material forming a packaging container which rapidly and securely contains the contents and closes the cover and fixes the cover body and the container body in less procedures than conventional cases, in a single motion or a similar procedure and which can be very easily opened without shocks on the contents and without breakage of the container, or which can be repeatedly used frequently. SOLUTION: A container body A and a cover body B have a common part 3 moving like a hinge and these bodies are continuously and integrally formed. In this packaging container material forming a covered container by fitting and fixing the protrusion formed at the peripheral part of one side and the recession formed at the peripheral part of the other side. The distance from the center of the moving part 3 like a hinge to the recession formed at the peripheral part forming the outside on fitting is made shorter than the distance to the protrusion formed at the peripheral part forming the inside on fitting.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to simple packaging of various lightweight articles such as accessories, stationery, electronic parts, machine parts, tools, etc., which are suitable for packaging foods such as fresh foods and processed foods. More specifically, the present invention relates to a packaging container material excellent in opening and closing operability in which a container and a lid share a hinge-like operation portion and are integrally formed continuously.

[0002]

[Prior Art] Fresh foods and prepared foods such as fruits, vegetables and marine products,
As a simple and lightweight packaging material for processed foods such as hamburgers, assorted dishes, lunch boxes, etc., a container body / lid integrated container material which is formed integrally and continuously with a hinge-like operation part has been used. Was. As shown in FIG. 5 (a), the integrated container material that has been conventionally used shares the hinge-shaped operating portion 3 and has a flange around the periphery of the container A and the lid B that are continuously and integrally formed. No locking means are provided for the parts 1 'and 2'. Then, the object to be packaged (not shown) is put into the container A, bent by the hinge-like operation part 3, and the peripheral flange-like parts 1 'and 2' are overlapped and closed. While holding, the cover B is fixed to the body A by fixing one or several places of the flange-shaped portion by a fastener such as an adhesive tape or a stapler or a method such as adhesion or welding, and FIG. Closed container C shown in)
To form Alternatively, as shown in FIG. 6A, the peripheral portions are overlapped, and the convex portion is pressed into the concave portion formed in the peripheral portion to be fitted and fixed, and the closed container C shown in FIG. Some packaging containers are formed, but the vessel and lid are separately molded.

[0003]

However, as described above, the conventional one-piece container material has the container-side flange-like portion 1 'and the lid-side flange-like portion 2' to be overlapped.
Since no means of securing are taken, tools such as adhesive tapes, staplers, adhesives, and heat-sealing machines are required. The processing is extremely complicated. In addition, when the contents are taken out of the container closed in this way, the container is usually destroyed, and sometimes the contents are scattered by the shock. On the other hand, the conventional packaging container material fixed by fitting of the uneven shape of the peripheral portion, the peripheral portion is overlapped at the time of fitting, there is a work to push at least several places,
Again, the packaging process for a large number of pieces is extremely complicated. Also,
When taking out the contents from the closed container, the removed lid must be placed in another place, which is inconvenient. An object of the present invention is to develop a lightweight packaging container material with an integrated body and lid that can store contents without requiring any tools and that is easy to take out. As a result, a novel structure was provided in the hinge-like operation part, and the present invention was completed.

[0004]

According to the present invention, the container body A and the lid body B are formed integrally continuously by sharing the hinge-shaped operation part 3, and the convex part formed on one peripheral part is provided. And the recess formed in the other peripheral portion is fitted and fixed, so that, in the packaging container material in which the closed container C is formed, the hinge-shaped operation portion 3 is located outside when fitted. Excellent in opening and closing operability, characterized in that the distance to the concave portion formed in the peripheral portion is shorter than the distance to the convex portion formed in the peripheral portion which is inside at the time of fitting. A packaging material, preferably a food material, is provided.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structural aspect of the packaging container material of the present invention is illustrated in FIGS. The packaging container material of the present invention is shown in FIG.
As shown in FIG. 2, the distance h ₂ from the center of the hinge-shaped operating portion 3 connecting the container A and the lid B to the recess formed in the peripheral portion of the lid B, which is outside at the time of fitting, is: characterized in that it is shaped to be shorter than the distance h ₁ to the convex portion formed on the peripheral portion of the inner become device body a at the time of fitting.
In forming the closed container C as shown in FIG. 3, h ₂ is h ₁
Due to the smaller size, the convex portion 1a on the hinged operation part 3 side is different from the concave portion 2a on the hinged operation part 3 side in the fitting process.
Overlap each other so as to shift to the outside of the container. Therefore, FIG.
As shown in (2), in the process of fitting the container body A and the lid body B, the convex portion 1a and the concave portion 2a on the hinge-shaped operation part 3 side fit naturally and smoothly without applying external force. Combine. Thereafter, as shown in FIG. 4 (3), a force is applied by sandwiching the convex portion 1b and the concave portion 2b farther from the hinge-shaped operation portion 3 with a finger or the like,
What is necessary is just to fit using elastic deformation of a container material. Once fitted due to the elastic deformation of the container material,
They do not come off and stay together. Therefore,
The closing operation can be performed by one-touch or a procedure similar thereto, which is less than the conventional integrally-molded closing container or the fitting-type closing container as shown in FIGS. 5 and 6.
Also, in the case of opening the lid, the body A or the lid B is held with one hand.
And fix it with the other hand.
If b is pulled lightly in the vertical direction, the lid can be quickly opened without giving any shock to the contents and without damaging the container at all, and can be used as a container many times.

If h ₁ = h ₂ , the projection 1a
And the recess 2a are easily caught by each other, and the recess 2a rides on the projection 1a. In such a case, the convex portion 1a and the concave portion 2a must be fitted again by sandwiching them with a finger or the like, and the fitting cannot be stably performed by the above-described method.

[0007] In the present invention, from the center of the hinge-like operation section 3, fitting the lid the outer side at a distance h ₁ and the fitting to the projecting portion 1a formed on the peripheral portion of the inner become device body A at B
The difference in distance h ₂ of the up recess 2a formed in the peripheral portion, the size of the package formed by the packaging container material of the present invention, the shape, the form of the thickness of the material, physical properties, and the housing thereof, using Set according to the application. If this difference is too small for the size of the packaging container, the convex portion 1a and the concave portion 2
The deviation of “a” is small, and it is difficult to obtain the desired effect of the present invention. If this difference is excessive with respect to the size of the packaging container, the deviation between the convex portion 1a and the concave portion 2a is large, and conversely, the fitting between the convex portion 1b and the concave portion 2b farther from the hinge-shaped operation portion 3 becomes impossible. It becomes difficult. For example, a container for forming a substantially rectangular parallelepiped container having a long side of 18 cm, a short side of 10 cm, and a height of 5 cm produced by directly forming a transparent rigid vinyl chloride film having a thickness of 0.2 mm conforming to a food packaging standard. for continuous integral container between the body a and the cover B, and h ₂ than h ₁ 0.2~1.2m
m, preferably 0.7 mm
It is better to shorten it.

Further, in the present invention, the hinge-shaped operating portion 3
If the shape of the packaging container satisfies the condition that h ₂ is smaller than h ₁ , the shape and installation location are the size and shape of the packaging container formed by the packaging container material of the present invention, the thickness of the constituent materials, and the physical properties. , And the form of the contents and the intended use. For example, the cross-sectional form of the hinge Etc. can be used.

The packaging container material used in the present invention can be formed of various kinds of plastics, paper, metals such as aluminum, etc., and it is preferable to use a rigid or semi-rigid thermoplastic molding material. These plastic molding materials are processed into a film or sheet, and then thermoformed by a vacuum molding method, a pressure molding method, or the like, or the molding material is directly injection-molded to form a packaging container material. It can be easily mass-produced. Further, as the plastic molding material, for example, a material mainly composed of various thermoplastic resins such as a vinyl chloride resin, a polyolefin resin, a polystyrene resin, a polyester resin, a polyacrylic resin, and a polycarbonate resin. Can be used.

Further, the packaging container material of the present invention is molded so as to form various desired shapes such as a rectangular parallelepiped, a disk, a cylinder, an ellipse, a sphere, etc., of the packaging container assembled therefrom. You.

[0011]

Since the packaging container material of the present invention has the above-described structure, it contains the contents, closes the lid, and folds the lid and the body to fix it. Alternatively, it can be performed quickly and reliably by a procedure similar to that, and even when the lid is opened, the operation is extremely easy, and there is no shock to the contents and no damage to the container. It can be used over and over again. Further, in the packaging container made of the packaging container material according to the present invention, the concave portion around the packaging container is pulled toward the hinge-like operating portion side compared with the convex portion due to the displacement of the hinge-like operating portion, so that a highly stable fitting state. Is obtained. Therefore, the packaging container using the packaging container material according to the present invention is extremely suitable not only for food products, but also as a packaging container for information equipment supplies such as small articles such as CDs.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an example of a packaging container material according to the present invention.

FIG. 2 is an enlarged view of a hinge-like operation part of FIG. 1;

FIG. 3 is an external view showing an example of a closed container formed according to the present invention.

FIG. 4 is a cross-sectional view illustrating an embodiment of the packaging container material of the present invention, in which (1) is a completely opened state, (2) and (3) are fitting processes of a body and a lid, and (4). () Is a diagram showing a state where the fitting is completed.

FIG. 5A is a sketch illustrating a control product, and FIG.
FIG. 2 is an external view of a closed container formed therefrom.

FIG. 6A is a sketch illustrating a control product, and FIG.
FIG. 2 is an external view of a closed container formed therefrom.

[Explanation of symbols]

A Body B Lid C Closed container (contents already stored) 1a Protrusion on hinge operation part 3 side 1b Projection on far side from hinge operation part 3 1 'Body side flange part 2a Hinge operation part 3 side concave portion 2b concave portion far from hinge-shaped operating portion 3 2 'lid-side flange-shaped portion 3 hinge-shaped operating portion 4 heat-sealing portion h ₁ from center of hinge-shaped operating portion 3 to peripheral portion of body A H ₂ Distance from the center of hinge-shaped operating portion 3 to concave portion 2 a formed in the peripheral portion of lid B

Claims (4)

[Claims] 1. A container body A and a lid body B are formed continuously and integrally, sharing a hinge-shaped operation part 3, and are formed on one peripheral part and on the other peripheral part. In the packaging container material in which the closed container C is formed by fitting and fixing the formed concave portion, the concave portion formed from the center of the hinge-shaped operating portion 3 to the peripheral portion which is outside when fitted. Characterized by being formed so that the distance to the projection is smaller than the distance to the protrusion formed on the peripheral portion which is inside when fitting. 2. The packaging container material having a hinge-like operating portion 3 according to claim 1, wherein the peripheral portion of the container A has a convex shape, and the peripheral portion of the lid B has a concave shape. 3. A packaging container material having a hinge-like operating part 3 according to claim 1, which is used as a food container. 4. The packaging container material having a hinge-like operating part 3 according to claim 1, wherein the container A and the lid B are formed of plastic.