JP5002305B2 - Packaging container with a potch on the side wall of the container body - Google Patents

Description

  The present invention relates to a packaging container composed of a container body and a lid fitted or placed on the container body, and more particularly to a packaging container provided with a number of potches on the side wall of the container body.

  A packaging container consisting of a container body and a lid fitted or placed on the container body can completely cover the contents and can be stacked up and down, so it can be used in various stores such as supermarkets and convenience stores. It is useful as a packaging material. In addition, since both the container body and the lid can be provided at low cost by vacuum or pressure molding (sheet molding) of the synthetic resin sheet, they are useful as consumers as so-called disposable containers.

  The container body and lid of such a packaging container are molded from a transparent synthetic resin sheet so that consumers can carefully examine the contents, but the synthetic resin sheet used is thin. I can't deny that it looks weak and cheap.

Actually, in order to increase the rigidity of this type of packaging container, various ideas as shown in, for example, Patent Document 1 and Patent Document 2 have been devised.
Japanese Patent Laid-Open No. 2006-36332, representative figure, paragraph 0018 Japanese Patent Laid-Open No. 2005-178815, representative figure, paragraph 0018

  Patent Document 1 discloses a “resin sheet-made egg packaging container”, and as shown in FIG. 8, “of the peripheral wall 22 of the lid 2 on the side continuous with the small uneven surface 21 b, that is, The upper peripheral wall 22b is formed in a number of vertical rib surfaces in a state of being linear in the vertical width direction and uneven in the horizontal width direction "(paragraph 0018 of Patent Document 1).

  Patent Document 2 discloses a “packaging container”, and as shown in FIG. 9, each of the ear portions 3 of the container body 1 has five linear reinforcing grooves 31. It is provided so as to draw a concentric circle as viewed from the center of the container body 1. The presence of such a line reinforcing groove 31 improves the strength of the ear portion 3 and gives an appropriate “bending”. Is made easier "(paragraph 0018 of Patent Document 2).

  From the description in each of these patent documents, it is considered that the “weakness in rigidity” of the packaging container formed by the synthetic resin sheet is solved to some extent, but the cheap image has not been solved yet. The cheap image of a packaging container is something that can be said to be the “cheapness” of the contents product, and the manufacturer of this type of packaging container wants to do something.

  For example, if this type of packaging container contains “salad” or “cut fruit”, the presence of “water droplets” is likely to highlight the freshness and freshness of the contents. In addition, if the atmosphere of a “glass container” can be created in a synthetic resin sheet container, the luxury of the contents is likely to be produced.

  Therefore, the present inventors show how to express the image of “water droplets” or the atmosphere like “glass containers” on the form while ensuring the rigidity required for this type of packaging container. As a result of various investigations, the present invention has been completed.

  That is, an object of the present invention is to provide a packaging container that can produce freshness and luxury of the contents to be stored and can ensure the necessary rigidity with a simple configuration. It is in.

In order to solve the above problems, first, the means taken by the invention according to claim 1 will be described with reference numerals used in the description of the best mode described below.
“A packaging body 100 in which a container body 10 having a storage portion 13 and a lid 20 fitted or placed thereon are formed by vacuum or pressure molding of a synthetic resin sheet,
By projecting or recessing the synthetic resin sheet partially, the side wall 11 of the container body 10, as well as independent from one another, to form a large number of raised dot 30 which was formed to be zigzag for vertical direction of the container body 10 The packaging container 100 is characterized in that light can be diffusely reflected by each of these potches 30 ".
It is.

  That is, the packaging container according to claim 1 includes a container body 10 having a storage portion 13 and a lid body 20 fitted or placed on the container body 10, and these container body 10 and lid body. 20 is formed by vacuum or pressure forming of a synthetic resin sheet.

Further, the packaging container 100, the side wall 11 of the container body 10, as shown in FIGS. 1 to 4, raised dot 30 which is adapted as well as independent from one another, a zigzag on the vertical direction of the container body 10 Are formed in large numbers. These potches 30 are formed by partially denting or projecting a synthetic resin sheet. In the best mode to be described later, these potches 30 are synthesized as shown in FIG. 5 and FIG. It is formed by partially protruding a resin sheet.

  Each of these potches 30 is independent from each other, and is different from “a large number of vertical rib surfaces formed in a straight line in the vertical width direction and uneven in the horizontal width direction” in Patent Document 1 shown in FIG. is there. In addition to the shape shown in FIG. 4, each of these potches 30 has various patterns as shown in FIGS. 7A to 7F and is independent. Therefore, the light is diffusely reflected individually.

  In other words, each potch 30 protrudes from or is recessed from the side wall 11 which is a plane or a curved surface, and is independent from each other. For example, when it is illuminated in a store, the light is transmitted in various directions. To reflect. Due to the irregularly reflected light from the potch 30, the packaging container 100 creates an atmosphere like a glass container and appears to have “water droplets” attached thereto. As a result, these potches 30 exhibit an effect that enhances the freshness and freshness of the salad and cut fruit stored in the container body 10 of the packaging container 100.

Further, since each potch 30 protrudes from or is recessed from the side wall 11 which is a flat surface or a curved surface, the force from above is distributed in the lateral direction of the side wall 11 at that portion. That is, the side wall 11 of the container main body 10 has an upper and lower side when the lid 20 is fitted to the container main body 10 or when another packaging container 100 containing contents is stacked on one packaging container 100. A directional force is applied, but this force is distributed at each potch 30 as described above. For this reason, the buckling strength of the packaging container 100, particularly the side wall 11 of the container body 10, is increased.

Thus, the packaging container 100 according to the first aspect, first, it is possible to produce freshness and luxury contents should retract and, and since has become what it is possible to ensure the necessary rigidity is there.

Further, for the packaging container 100 according to claim 1,
"The arrangement of the raised dot 30, that Do a zigzag on the vertical direction of the container body 10 '
It is like that.

That is, in the packaging container 100 according to the first aspect, the arrangement of the raised dot 30, as shown in FIG. 4, in which the vertical direction of the container body 10 was made to be zigzag. “Zigzag” refers to a state in which each upper end is up and down with respect to a horizontal line even when each potch 30 is formed as “row” in the vertical direction, as shown in FIG. It also includes random states.

  If the arrangement of each potch 30 is zigzag in the vertical direction of the container body 10, the aforementioned force applied from the vertical direction is dispersed in the zigzag in each potch 30. That is, the presence of these potches 30 distributes the force applied to the side wall 11 from the vertical direction also in the horizontal direction, and as a result, the rigidity of the container body 10 is increased.

Thus, the packaging container 100 according to the claim 1, except that exhibit the same kind of functionality as previously described, and obtained by the dispersion of the force from the vertical direction by each raised dot 30 to more securely, yet rigid It is a thing.

Further, the means taken by the invention according to claim 2 is about the packaging container 100 according to claim 1 ,
“The potch 30 located at the lower end of the side wall 11 extends over the bottom wall 12 of the container body 10”.
It is.

That is, in the packaging container 100 according to the second aspect , the potch 30 positioned at the lower end of the side wall 11 extends over the bottom wall 12 of the container body 10 as shown in FIG. The force can be distributed also to the bottom wall 12 side.

  The potch 30 spanning the side wall 11 and the bottom wall 12 is the bottom surface of the bottom wall 12 when the bottom wall 12 is raised and the potch 30 is recessed (projects inside the container body 10). A ventilation path that communicates with the outside is formed, and the circulation of cool air in the display shelf is also allowed.

Thus, the packaging container 100 according to the second aspect, in addition to exhibit similar features of the first aspect, it're more become a higher strength.

In order to solve the above problems, the means adopted the invention according to claim 3, for packaging containers 100 according to any one of claims 1 to 2,
“The side wall 11 of the container body 10 is inclined outward, and the vertical angle of the bottom surface 31 of each potch 30 formed thereon is made closer to the vertical direction than the inclination angle of the side wall 11”
It is.

That is, as shown in FIG. 5, the packaging container 100 according to claim 3 inclines the side wall 11 of the container body 10 outward, and sets the vertical angle of the bottom surface 31 of each potch 30 formed on the side wall 11. This is closer to the vertical direction than the inclination angle of the side wall 11.

  If the side wall 11 of the container body 10 is inclined to the outside, the upper part of the storage part 13 is naturally widened. For example, the upper surface of the salad or cut fruit can be greatly widened, and the contents viewed through the lid 20 are gorgeous. You will see.

  On the other hand, the packaging container 100 in which the side wall 11 is inclined outward is easily buckled by an applied force when it is pressed from above, for example, when the lid 20 is fitted. However, in each potch 30 formed on the side wall 11, the vertical angle of the bottom surface 31 is made closer to the vertical direction than the inclination angle of the side wall 11 as shown in FIG. 5. In other words, the bottom surface 31 in a standing state can withstand the force from above.

Therefore, the packaging container 100 according to the third aspect exhibits the same function as the packaging container 100 according to any one of the first to second aspects, and also holds the stored items while ensuring the necessary rigidity. It is something that can be greatly expanded.

And the means which the invention which concerns on Claim 4 took is about the packaging container 100 in any one of the said Claims 1-3 ,
“Making each potch 30 vertically long”
It is.

That is, in the packaging container 100 of this fourth aspect, as also shown in FIG. 4, in which the respective raised dot 30 as a vertically long. Thereby, not only each potch 30 itself can sufficiently withstand the force applied to the side wall 11 from the vertical direction, but the rigidity of the side wall 11 as a whole due to the existence of a large number of such potches 30. It is raising.

Therefore, the packaging container 100 according to the fourth aspect exhibits functions similar to those of any one of the first to third aspects, and further has increased rigidity.

As described above in detail, the packaging container 100 according to the present invention includes:
“A packaging body 100 in which a container body 10 having a storage portion 13 and a lid 20 fitted or placed thereon are formed by vacuum or pressure molding of a synthetic resin sheet,
By projecting or recessing the synthetic resin sheet partially, the side wall 11 of the container body 10, as well as independent from one another, to form a large number of raised dot 30 which was formed to be zigzag for vertical direction of the container body 10 Te, there is mainly characterized in the configuration thereof as in the possible "capable of diffusely reflected light by respective raised dot 30, except that thereby, Ru can produce freshness and luxury contents to be accommodated, each raised dot 30 according to obtained the more and more the distribution of forces in the vertical direction reliably, it is possible to ensure the necessary stiffness.

  Next, the invention according to each claim configured as described above will be described with respect to the best packaging container 100 shown in the drawings. The best packaging container 100 is described in each of the above claims. The invention includes substantially all of the inventions.

  FIG. 1 shows a front view of a packaging container 100 according to the present invention. The packaging container 100 is formed by subjecting a synthetic resin sheet to vacuum or pressure molding (sheet molding). 10 and the lid 20. As shown in FIG. 3, the best packaging container 100 has a substantially square shape in plan view. However, the present invention is not limited to such a square shape. Needless to say, the present invention can be applied to a circular shape, a rectangular shape, or a pentagonal shape.

  The packaging container 100 is such that the container body 10 of another packaging container 100 is stacked on the upper side of the lid 20. In order to stabilize at the time of stacking, as shown in FIGS. 1 and 3, fitting portions 15 are formed at the four corners of the bottom of the container body 10 having a square shape in plan view, and these fittings are made. As shown in FIGS. 1 and 2, the stacked protrusions 25 to be fitted to the portion 15 are formed at the four corners of the boundary between the lid 20 top plate 23 and the rising wall 22.

  In addition, although the synthetic resin sheet of a material is transparent in nature, what was given a certain amount of coloring, or what gave predetermined pattern printing can also be used.

  As shown in FIGS. 3, 5, and 6, the container body 10 includes a bottom wall 12, a side wall 11 that rises from the periphery of the bottom wall 12, and a side wall 11. It has the flange part 14 formed in the upper end. Further, a fitting portion or an engaging portion for fitting an inner fitting portion or an outer fitting portion of the lid 20 described later is formed on the inner and outer portions of the flange portion 14. Details are omitted. Of course, the container body 10 is also of a type in which the lid 20 is simply placed on the side wall 11.

  As shown in FIGS. 5 and 6, the cross-sectional shape of the side wall 11 may be such that the end face of the cross-section is inclined or curved so that it opens wider as it goes upward. It may be a flat one.

  As shown in FIGS. 1 to 6, a large number of potches 30 are formed on the side wall 11. Each of these potches 30 is formed by molding a synthetic resin sheet as a material together with the overall shape of the container body 10 and is independent of each other. As shown in FIGS. 5 and 6, each of these potches 30 may be formed so as to bulge to the inside, that is, the storage portion 13 side of the container main body 10. It may be formed so as to bulge outward.

  In addition, the front-view shapes of the large number of the potches 30 are shown in FIGS. 7A to 7F in addition to the shapes shown in FIG. 4 as long as they satisfy the condition of being independent from each other. Various things are conceivable. In this case, as shown in FIG. 4, the same size potches 30 are arranged, as shown in FIGS. 7A to 7F, each potch 30 is made larger or smaller, or a plurality of small potches 30 are arranged. The potch 30 may be configured as one set by appropriately dispersing the set.

  Further, as the arrangement of the respective potches 30, the container body 10 may be formed at random in addition to being formed in a row in the vertical direction as shown in FIG. 4. In the case where the potches 30 are arranged as vertical columns, as shown in FIG. 4, the buckling strength of the side walls 11 can be increased by making the respective potches 30 in adjacent columns zigzag up and down. .

  Furthermore, as shown in FIG. 4, the shape of each potch 30 is set to be vertically long, which means that when a plurality of these potches 30 are arranged, the buckling strength in the vertical direction of the container body 10 is further increased. Can be advantageous. Further, if a plurality of vertically long potches 30 are arranged vertically as shown in FIG. 4, the buckling strength of the container body 10 in the vertical direction can be further increased.

  Then, as shown in FIG. 5, the packaging container 100 inclines the side wall 11 of the container body 10 outward, and sets the vertical angle of the bottom surface 31 of each potch 30 formed on the side wall 11 of the side wall 11. The tilt angle may be closer to the vertical direction.

  If the side wall 11 of the container body 10 is inclined to the outside, the upper part of the storage part 13 is naturally widened. For example, the upper surface of the salad or cut fruit can be greatly widened, and the contents viewed through the lid 20 are gorgeous. It will be visible.

  On the other hand, the packaging container 100 in which the side wall 11 is inclined outward is easily buckled by an applied force when it is pressed from above, for example, when the lid 20 is fitted. However, in each potch 30 formed on the side wall 11, the vertical angle of the bottom surface 31 is closer to the vertical direction than the inclination angle of the side wall 11 as shown in FIG. The bottom surface 31 in a state can withstand the force from above.

  Of course, this type of sheet molded product must be designed so as not to have a so-called “undercut” portion. This is because if there is an undercut portion in the product, it will be difficult to remove the die from the undercut portion, and this will cause distortion and distortion in the product, so this is to be avoided. In that sense, in each potch 30 formed on the side wall 11, since the vertical angle of the bottom surface 31 is closer to the vertical direction than the inclination angle of the side wall 11, no undercut portion is formed, and there is no distortion or distortion. It can be made into a new product.

  Regardless of the shape as described above, regardless of whether it is a dent or a protrusion, each potch 30 is formed by bulging a synthetic resin sheet either inside or outside. It will be made to. In this case, since the respective potches 30 are independent from each other, the irregular reflection portions are formed in the number corresponding to the number existing on the side wall 11 on which the light hits.

  The lid 20 to be fitted or placed on the container body 10 as described above includes a flange portion 23 that faces the flange portion 14 on the container body 10 side, as shown in FIGS. The rising wall 22 rising from the flange 23 and the top plate 21 formed at the upper end of the rising wall 22 are provided.

  With respect to the lid 20 in the best mode, a large number of small protrusions 24 similar to the potch 30 are formed on the entire circumference of the flange portion 23 so that the presence of the flange portion 23 can be appealed. The large number of small protrusions 24 formed on the flange portion 23 on the lid 20 side diffuses light so as to give a spread to the storage viewed from above, that is, through the lid 20, and is luxurious. Will be produced.

It is a front view of the packaging container which concerns on this invention. It is a top view of the lid which constitutes the packaging container. It is a top view of the container main body which comprises the packaging container. It is the fragmentary front view which expanded and showed the principal part of FIG. FIG. 5 is a partially enlarged longitudinal sectional view taken along line 1-1 in FIG. 4. FIG. 5 is a partially enlarged longitudinal sectional view taken along line 2-2 in FIG. 4. It is the partial expanded front view which showed the Example from which the pattern of each potch differs over six types of (a)-(f). It is a perspective view which shows the prior art. It is a partial expanded sectional view which shows other conventional techniques.

DESCRIPTION OF SYMBOLS 100 Packaging container 10 Container main body 11 Side wall 12 Bottom wall 13 Storage part 14 Flange part 15 Fitting part 20 Cover body 21 Top plate 22 Standing wall 23 Flange part 24 Small protrusion 25 Stacking protrusion 30 Potch 31 Bottom face

Claims (4)

A packaging container in which a container body having a storage part and a lid fitted or placed thereon are formed by vacuum or pressure molding of a synthetic resin sheet,
Wherein by protruding or recessing the synthetic resin sheet partially, on the side wall of the container body, as well as independent from one another, to form a large number of raised dot that was formed to be zigzag for vertical direction of the container body, A packaging container characterized in that light can be diffusely reflected by each of these potches. The packaging container according to claim 1 , wherein the potch located at the lower end of the side wall spans the bottom wall of the container body. The side wall of the container main body is inclined outward, and the vertical angle of the bottom surface of each potch formed on the side wall is made closer to the vertical direction than the inclination angle of the side wall. The packaging container according to claim 2 . The packaging container according to any one of claims 1 to 3 , wherein each of the potches is vertically long.

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