JP4842339B2 - Packaging container - Google Patents

Description

  The present invention relates to a packaging container in which a plurality of regular products such as confectionery are accommodated in containers on a conveyor and a lid is sealed from above.

  Conventionally, a cylindrical body with a bottom is formed, and a step is formed at the upper end of the body, and the shape of the outer periphery of the opening of the main body formed with an opening upward is formed in an elliptical shape. At the same time, a container having an elliptical shape in plan view of the inner periphery of the lid that fits into the opening has been developed, and a container that can easily and securely fix the lid and the main body is provided. (For example, Patent Document 1).

  In addition, containers that are manually pressed to close the main body with a lid have been developed (for example, Patent Documents 2 and 3).

In the above-mentioned Patent Document 1, the outer periphery of the opening of the main body and the inner periphery of the opening of the lid 10 are in close contact with each other. And
Further, even in the second and third patent documents, when the main body portion is closed with the lid, the engaging portion must be engaged and closed by being pressed by human power.

  In any case, since the internal air of the main body is discharged when the lid is closed, the lid must be closed by pressing. Therefore, the opening of the upward opening container cannot be closed naturally only by its own weight. For this reason, the contents are accommodated in the upward opening containers arranged on the belt conveyor, and then the upper lid is simply placed on the opening, and the upward opening container is closed only by the weight of the upper lid. The packaging operation cannot be performed easily, and due to the space or gap between the outer peripheral surface of the opening of the container and the inner peripheral surface of the downward wall plate of the upper lid, a backlash occurs between the container and the upper lid, It was difficult.

Utility Model Registration No. 3051859 JP-T 9-509637 JP 2004-59055 A

  In the invention of the present application, a large number of upward opening containers containing granular confectionery and other packages are juxtaposed on a transport device such as a conveyor. In addition to being able to mass-produce the above open container in a sealed state quickly and reliably with only the weight of the above, the object is to stably package the contents.

In order to achieve the above object, the present invention firstly forms an upward opening container by erecting an upward wall plate along the outer periphery of the bottom plate, and forms a constant-width flange along the outer peripheral lower end of the upward wall plate. And projecting a plurality of upper lid inner side surface guide ribs that reach the upper surface of the flange on the outer peripheral surface of the upward wall plate, and between the outer ends of the lower ends of the ribs and the upper surface outer periphery of the equal width flange Supporting the lower end surface of the lower wall plate of the upper lid, providing the guide ribs on at least four sides of the outer peripheral surface of the upper wall plate, and the shapes of the bottom plate and the ceiling plate of the upper lid are similar. der I, the bottom plate and in plan view an arc-shaped curvature is different magnitudes of both ends of the ceiling plate, the modified elliptical containers der Ru packaging curvature of sides connecting the both ends of the effective band is arcuate symmetrical,
Consists of.

  Accordingly, a plurality (constant) of lumps of confectionery are accommodated and transferred in the upwardly opened containers arranged in large numbers on the belt conveyor.

  In that state, when the lower end of the inner surface of the upper lid is aligned with the upper end of the upper wall plate of the open container and the hands are released, the small gap between the lower wall plate of the upper lid and the upper wall plate is removed. The air in the upper lid and the open container is pressed by the weight of the upper lid and quickly discharged to the outside from the small gap. The small gap is held by the plurality of guide ribs, and the lower end surface of the downward wall plate of the upper lid contacts the outer peripheral upper surface of the equal width flange, whereby the upward opening container is sealed by the upper lid.

  In addition, the container, the bottom plate of the top lid, and the ceiling plate are arc shaped with different curvatures at both ends in plan view, and the curved shapes on both sides are the target arc shape. Is in contact with the deformed arc-shaped inner surface of the container, and sliding or vibration is relatively mitigated.

  Since the present invention is configured as described above, only the lower end portion of the upper wall plate of the upper lid is aligned with the upper end of the upper wall plate of the upward opening container that contains a plurality of small lump products such as confectionery, The internal air is automatically discharged from the gaps between the plurality of guide ribs, and the upper lid is automatically guided by the ribs of the upward opening container without requiring external force, and the lower wall plate of the upper lid is placed on the upper surface of the flange of the container. The lower end of the container can be contacted, and the container can be sealed without requiring an external force, and sliding of the contents in the container can be suppressed by the arc-shaped inner surface.

It is a perspective view which shows the packaging container of this invention. It is a top view of an upward opening container. FIG. 3 is a front view of FIG. 2. (A) is a partially enlarged view of FIG. 2, (b) is a front view of (b), and (c) is a front view of another example of (b). (B) The figure is a front view of the container with the upper lid in contact with the container. (B) The figure is a front view of the lower part of the upper lid in contact with the guide rib. It is a front view of the state which contacted the upper surface of the guide rib.

  The upward opening container 3 made of a cured synthetic resin is formed by standing the upward wall plate 2 along the outer periphery of the bottom plate 1.

  A constant width flange 4 is projected along the lower end of the outer periphery of the upward wall plate 2.

  A plurality of (six) ribs 7 for guiding the inner surface 6 ′ of the downward wall plate 6 of the upper lid 5 reaching the middle of the upper surface of the flange 4 are spaced on the outer peripheral surface of the upward wall plate 2 with an interval s (FIG. (B) It is provided vertically on the outer periphery of the upward wall plate 2 via the figure.

  The upper end of the rib 7 is arranged in the middle of the upward wall plate 2, and the upper end portion 7 'is inclined downward from the outer peripheral surface of the upward wall plate 2 as shown in FIG. As shown in FIG. 4 (c), the entire rib 7 is inclined downward from the upper end to the lower end 7 ″.

  Further, the outer end 7 ″ of the lower end portion of the rib 7 is supported in the middle of the upper surface of the flange 4, and the width of the downward wall plate 6 of the upper lid 5 is between the outer end 7 ″ and the outer periphery 4 ′ of the flange 4. Is provided so that the lid 5 is brought into close contact with the upper surface of the flange 4 of the container 3 by bringing the lower end surface 6 ″ of the downward wall plate 6 of the upper lid 5 into contact with the support surface 4 ″. Thus, the inside of the container 3 can be shut off from the outside.

Of course, the bottom plate 1 and the ceiling plate 5 'of the upper lid 5 are similar in shape.
In addition, the bottom plate 1 and the ceiling plate 5 'are arcuate shapes having a small curvature r at one end, a large curvature R at the other end and a symmetrical curvature on both sides in a plan view (FIG. 2). A deformed oval container having a visual oval shape is formed.

  Accordingly, when a plurality of (for example, five) items 8 such as a lump of confectionery are accommodated in the container 3, the curvatures at both ends are different from each other as shown in FIG. Since the container 8 is in the shape of an egg, the container 8 is in contact with the inner peripheral surface of the upward wall plate 2 and can be safely stored with little risk of sliding due to contact with each other. A space t corresponding to the protruding width of the guide rib 7 is formed between the outer peripheral surface of the facing wall plate 2 and the inner peripheral surface of the lower wall plate 6 of the upper lid 5 by the guide rib 7. When the container 3 is closed, the air in the container 3 is evacuated to the outside from the space s between the ribs 7 and 7 and the lower end of the downward wall plate 6 through the space t. The container 3 can be closed.

  After the closing, the lower end surface 6 ″ of the downward wall plate 6 can be in close contact with the upper surface of the flange 4 (the supporting surface 4 ″), and the internal air is discharged only by the weight of the lid 5, and the lid 5 Thus, the container 3 can be easily sealed, so that the contents 8 can be safely sealed in the container 3 and can be transported in large quantities by the belt conveyor 9 or the like.

  A plurality of bulk items 8 such as confectionery can be safely and easily stored, sealed with little backlash between the lid 5 and the container 3 after being stored, and packaged easily and manually on the belt conveyor 9 and suitable for mass production. .

DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Upward wall board 3 Upward opening container 4 Equal width flange 5 Top lid 5 'Ceiling board 6 Downward wall board 6 "Lower end surface 7 Guide rib r, R Curvature

Claims (1)

An upwardly facing wall plate is erected along the outer periphery of the bottom plate to form an upward opening container, and a constant-width flange is projected along the outer peripheral lower end of the upwardly facing wall plate,
A plurality of upper lid inner side surface guide ribs are provided on the outer peripheral surface of the upward wall plate so as to reach the upper surface of the flange. Support the lower end face of the facing wall plate,
At least 4 becomes provided way, and the shape of the ceiling plate of the bottom plate and the upper lid I similar shape der, the bottom plate and a plan view both ends of the ceiling plate of the outer peripheral surface of the upward wall plate the guide ribs the magnitude of curvature is different in an arc shape, the modified elliptical containers der Ru packaging curvature of sides connecting the both ends of the effective band is arcuate symmetrical.

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