JP3221145U - Packaging container and lid - Google Patents

Abstract

An object of the present invention is to provide a packaging container in which a lid can be easily removed from a container main body even with one-handed operation. A lid 30 is engaged with a container main body 10 when a locking convex portion 41 formed on a pentagon or more polygonal fitting portion 40 of the lid is caught on an opening peripheral edge 13 of the container main body 10. The locking projection 41 of the lid 30 is formed at two or more corners of the fitting portion 40 of the lid 30, and at least one of the fitting portions 40 of the lid 30 is fixed. It was set as the packaging container 1 which is not formed in one corner. [Selected figure] Figure 1

Description

  The present invention relates to a packaging container, and in particular, a packaging container and a lid which comprises a container main body and a lid whose outer peripheral shape of the opening is a polygonal shape of pentagon or more, and the lid can be smoothly removed from the container main It is about

  With regard to containers for food such as sugar beets and other processed foods, container bodies of various shapes and shapes of lids corresponding thereto have been proposed. As a general feature of such a packaging container, a flange portion is formed on the periphery of the opening of the container body, and a locking projection is provided on the lid side to engage with the flange portion of the container body, the lid The lid is engaged with the container main body by engaging and pinching the engaging convex portion of the container with the flange portion of the container main body.

Usually, in the locking structure of the lid to the container main body described above, the lid is relatively firmly locked to the container main body in consideration of distribution, handling at the time of sale, and the like. Therefore, when attempting to remove the lid from the container body, the removal can not always be performed smoothly.
Therefore, there is a demand for a container that can remove the lid from the container body as easily as possible while maintaining fit during distribution and sales, and various containers have been proposed.

  For example, in Patent Document 1, a lid is formed with a knob having a protruding portion formed by expanding a part thereof upward, and the rigidity is enhanced to make it difficult to deform in a flexible manner. A container which can easily remove the lid from the container body with a small force has been proposed as being easy to be transmitted to the body.

JP, 2005-162302, A

  However, although the container described in the above-mentioned Patent Document 1 exerts a certain effect in a container having a shape in which the outer peripheral shape of the opening is circular, it has the removability which is necessarily satisfactory in other shapes. It was not.

  At present, the container which can easily remove the lid from the container main body is almost circular in the outer peripheral shape of the opening as disclosed in Patent Document 1 mentioned above, and the outer peripheral shape of the opening is polygonal In the case of the above container, the lid is difficult to remove because the corner is caught when the container is opened. In particular, in a polygonal container having five or more corner portions, since the distance between the locking convex portions provided at adjacent corner portions becomes short, the tendency for the lid to be difficult to remove is more remarkable.

  The present invention has been made in view of the problems of the above-described background art, and the object thereof is also in a lid which is engaged with a container main body whose outer peripheral shape of an opening is a polygonal shape having five or more sides. It is an object of the present invention to provide a packaging container and a lid provided with a structure by which the lid can be easily removed from the container body by one-handed operation.

In order to achieve the above object, the present invention is a packaging container and a lid as described in the following [1] to [12].
[1] From a container main body whose outer peripheral shape of the opening is a polygonal shape having a pentagon or more in a top view, and a lid having a similar polygonal fitting portion fitted outside the opening peripheral edge of the container main body Packaging container,
The lid is locked to the container main body by the hooking protrusion formed on the fitting portion of the lid being hooked on the peripheral edge of the opening of the container main body,
The locking projection is formed at two or more corners of the fitting portion of the lid.
A packaging container characterized by not being formed at at least one corner of the fitting portion of the lid.
[2] The lid according to the above [1], characterized in that the lid has an operating portion at at least one of the corner portions adjacent to the corner portion where the locking convex portion is not formed. Packaging container.
[3] The package according to the above [2], wherein the lid has the locking convex portion not formed in any of two corner portions adjacent to the corner portion having the operation portion. Container.
[4] The packaging container according to any one of the above [1] to [3], wherein the outer peripheral shape of the opening of the container body is hexagonal or octagonal in top view.
[5] The packaging container according to any one of the above [1] to [3], wherein the outer peripheral shape of the opening of the container body is octagonal in top view.
[6] The cover according to [4] or [5], wherein the lid alternately has a corner in which the locking convex portion is formed and a corner in which the locking convex portion is not formed. The packaging container as described in-.
[7] The packaging container according to any one of the above [1] to [6], wherein the protruding height of the locking convex portion is 0.2 to 1.0 mm.
[8] The packaging container according to any one of the above [1] to [7], wherein the locking projection is a protrusion having a length of 3 to 60 mm and a width of 0.5 to 3 mm.
[9] The packaging container according to any one of the above [1] to [8], wherein a circumferential vertical cross-sectional shape of the locking convex portion is substantially trapezoidal.
[10] The locking projection according to any one of the above [1] to [9], characterized in that the locking projection is formed of two small projections formed on both sides of the apex of the corner of the fitting portion. Packaging container.
[11] The lid is characterized in that at least one of the side portions of the fitting portion is formed with a locking convex portion which is locked to the peripheral edge of the opening of the container body, The packaging container in any one of said [1]-[10].
[12] A lid having a similar polygonal fitting portion which is externally fitted to a container main body whose outer peripheral shape of the opening is a polygonal shape having a pentagon or more in top view,
The lid has a locking projection for locking the lid to the container main body by being hooked to the periphery of the opening of the container main body at the fitting portion,
The locking projection is formed at two or more corners of the fitting portion of the lid.
A lid characterized in that it is not formed at at least one corner of the fitting portion of the lid.

  The packaging container according to the present invention maintains the detachment difficulty (fitability) at the time of packaging of the contents, even with a lid that is locked to a container main body having a pentagon or more polygonal opening peripheral edge. While being opened, the lid can be easily removed from the container body.

It is the perspective view which showed the open state of one Embodiment of the packaging container concerning this invention. It is a top view of the lid of one embodiment of the packaging container concerning the present invention. It is a conceptual top view which illustrated various physical relationship of a stop convex part and an operation part which are provided in a fitting part of a lid. It is an important section sectional view showing the closing state of one embodiment of the packaging container concerning the present invention. It is principal part sectional drawing which showed the state which removed the cover body in the packaging container shown in FIG.

  Hereinafter, embodiments of a packaging container and a lid according to the present invention will be described in detail based on the drawings.

The packaging container 1 according to the present invention is, as shown in FIG. 1 etc., a polygonal shape having a pentagonal or more polygonal shape in top view, for example, a pentagonal, hexagonal, octagonal, decagonal or other polygonal opening A container body 10 having an outer peripheral shape, and a lid 30 having a similar polygonal fitting portion fitted on the periphery of the opening of the container body 10 are provided. In the illustrated embodiment, a container body 10 having a regular octagonal opening 20 and a lid 30 having a regular octagonal fitting 40 in plan view are disclosed.
Among the above, the outer peripheral shape of the opening 20 of the container body 10 and the shape of the fitting portion 40 of the lid 30 are preferably a hexagonal shape or an octagonal shape, more preferably an octagonal shape, as illustrated above Particularly preferred is a regular octagonal shape.
In the present invention, the polygonal shape includes not only the form in which the corner portion is a corner joined by sides but also the form in which the joint portion between the sides is chamfered in a curved shape. In addition, it includes those whose side is curved outward or inward.

  The container body 10 and the lid 30 having the polygonal shape are not particularly limited, but can be obtained by molding a synthetic resin sheet of polyethylene, polypropylene, polystyrene, polyethylene terephthalate, polylactic acid or the like into a predetermined shape. Moreover, the synthetic resin sheet of the container main body 10 may be a foam sheet.

  The thickness of the synthetic resin sheet that forms the container body 10 and the lid 30 is approximately 1 mm or less, though appropriate. In the combination of the container body 10 and the lid 30, the raw material resin of the synthetic resin sheet may be the same type or a different type. The kind of resin which comprises a synthetic resin sheet is suitably selected by the use, the contents, and the package object. In addition, it is preferable to use a polypropylene resin sheet from the viewpoint of processability, strength and the like.

  The container body 10 includes a bottom portion 11, a side wall portion 12 rising from the bottom portion 11, and a flange portion 13 projecting outward from the side wall portion 12. As described above, a polygonal shape having a pentagon or more in top view The outer peripheral shape of the opening 20 is formed. Further, as shown in the drawing, it is preferable that the bottom 11 of the container main body be formed with an annular convex portion 14 that protrudes downward to fulfill the function of the pedestal while also acting as a reinforcement. Moreover, it is preferable that the side wall part 12 is formed in the inclined surface which spreads outward from the said bottom part 11 above. By making the shape of the side wall portion 12 into an inclined structure, when the contents are packaged, no gap is formed between the contents and the container main body, and the contents are maintained in the shape upon packaging. Because it is easy to do, the contents can be packaged with a good appearance. From the above point of view, when packaging food such as fried rice in a rounded shape, it is more preferable to provide the side wall 12 with a slope. According to the present invention, the lid can be easily removed from the container body even in such a container body in which the bottom of the container is formed to be inclined.

  In the container body 10, the outer peripheral shape of the opening 20 is a polygonal shape having a pentagon or more in top view, but the inner shape for storing the contents is not limited. Specifically, it may be a polygonal shape similar to the outer peripheral shape of the opening, or may be a polygonal shape different from the outer peripheral shape of the opening, a circle, an oval, a square, a triangle, or the like. In the illustrated embodiment, the internal shape of the container body 10 is circular.

  The lid 30 includes the top plate portion 31, the peripheral wall portion 32 hanging down from the periphery of the top plate portion 31, and the flange portion 13 of the container body 10 when the lid body is closed with respect to the container body 10. And at least the fitting portion 40 of the lid is formed in the same polygonal shape as the outer peripheral shape of the opening 20 of the container body 10 as described above.

  It is preferable that the convex part 33 which acts as a fastener when forming the several container on the top-plate part 31 of a lid is formed. In the illustrated embodiment, four convex portions 33 are formed alternately along the side portions of the octagonal top plate portion 31. The convex portion 33 may be realized as an annular convex portion formed along the side portion of the top plate portion. The side wall portion 32 of the lid is formed in an inclined surface which spreads outward from the top plate portion 31 downward.

In the illustrated embodiment, the fitting portion 40 of the lid comprises a horizontal portion 40a overlapping the flange portion 13 of the container body, and a hanging portion 40b hanging from the periphery of the horizontal portion 40a. In the fitting portion 40 of the lid, a locking projection 41 is formed which is hooked on the flange portion 13 formed on the periphery of the opening of the container body. The present invention relates to a container having an outer peripheral shape of a pentagon or more polygonal opening, wherein the locking convex portion 41 is formed at two or more corners of the fitting portion 40 of the lid, It is characterized in that it is not formed at one corner.
By forming the locking convex portion in at least two or more corner portions, it is possible to satisfactorily prevent opening due to twisting or the like when the container is bent, and it is difficult to remove the lid when packaging the contents (fitting Can be maintained. In the case where the locking convex portion is not formed or is formed only in the corner of 1, the fitting property is obtained even when the locking convex portion 44 of the side portion described later is provided. It can not be maintained, and there is a possibility that the lid may be easily detached from the container body in the process of transportation, sales, and the like.
On the other hand, the presence of the corner portion in which the locking convex portion is not formed ensures the removability of the lid even in the lid which is locked to the container main body having the polygonal opening having five or more polygons. Can. The reason for this will be described later. In addition, when the locking convex part is formed in all the corner parts, since the joint strength of a container main body and a lid becomes high too much, there exists a possibility that the removability of a lid may be impaired.

  It is preferable that the protrusion height of the latching convex part 41 formed in the corner | angular part of the fitting part 40 of the said cover body is 0.2-1.0 mm. It becomes a container which is excellent by the balance of fitting nature and removal nature as projection height of locking convex part 41 is in the above-mentioned range. From the above viewpoint, the protruding height of the locking convex portion 41 is more preferably 0.4 to 0.8 mm.

  The locking projection 41 is preferably a projection having a length of 3 to 60 mm and a width of 0.5 to 3 mm, and further preferably a projection having a length of 5 to 20 mm and a width of 0.7 to 2 mm. preferable.

  The locking convex portion 41 is preferably made of two small convex portions formed on both sides of the apex of the corner. By configuring the locking convex portion 41 as described above, it is possible to provide a path for removing steam at the tip of the corner that separates the locking convex portion. Moreover, it is preferable because the locking convex portion is not easily caught at the time of opening and the removal of the lid becomes easier.

  It is preferable that the circumferential direction vertical cross-sectional shape of the locking convex portion 41 be substantially trapezoidal. By making the circumferential direction vertical cross-sectional shape of the locking convex portion 41 substantially trapezoidal, the removability of the lid is improved.

  In the illustrated embodiment, two small convex portions each having a height of 10 mm, a length of 10 mm, and a width of 1.5 mm, and a circumferential shape vertical cross section of a substantially trapezoidal shape are formed with two corner portions interposed therebetween. A passage 42 for removing steam is formed at the tip of the corner separating the locking projections.

  In the fitting portion 40 of the lid, it is preferable that the operation portion 43 be formed at at least one of the corner portions adjacent to the corner portion where the locking convex portion 41 is not formed. In the present invention, the operation portion is a portion provided for an operation of hooking a finger in order to remove the lid, and the finger is opened by hooking the corner such as a mark, a fin, a projection, etc. Including everything that can be derived. The mark may be, for example, an arrow, a cut, a seal, or the like. Among them, from the viewpoint of improving the removability of the lid, it is preferable that the operating portion be a knob having a certain area to which a finger can be hooked. Specifically, a substantially triangular or semicircular knob formed so as to protrude outward of the fitting portion is preferably exemplified.

  In the fitting portion 40 of the lid, the operation portion 43 is formed in at least one of the corner portions adjacent to the corner portion in which the locking convex portion 41 is not formed, thereby forming a pentagon or more Even in the case of the lid that is locked to the container body having the outer peripheral shape of the polygonal opening, the lid can be easily removed from the container body by the operation with one hand.

  In the illustrated embodiment, two opposing corners on which the locking projections 41 are formed on the lid 30 in which the locking projections 41 are formed at every other corner of the fitting portion 40. The operation portion 43 is realized by providing the portions with substantially triangular knobs that respectively project outward. The operation part 43 which consists of a knob which concerns on this embodiment is formed in the plate | board surface as the small unevenness | corrugation 43a, and when it is pinched, it is supposed that it is difficult to slip. Further, the locking convex portion is not formed on any of the two corner portions adjacent to the corner portion having the operation portion 43.

The relationship between the formation position of the locking convex portion 41 and the forming position of the operation portion 43 is, for example, as shown in FIG. 3, and a corner portion adjacent to a corner portion where the locking convex portion 41 is not formed As long as the operation part 43 is formed in at least one corner of the above, any arrangement may be adopted. Above all, from the viewpoint of further improving the removability of the lid, as shown in FIGS. 3 (a), (b), (d) and (e), two corners adjacent to the corner having the operation portion 43 It is preferable that the engagement convex part is not formed in any of the parts.
3 (a) to 3 (c) conceptually show the positional relationship between the locking projection 41 and the operation unit 43 provided on the lid 30 having the octagonal fitting portion 40, and FIG. d) to (f) are diagrams conceptually showing the positional relationship between the locking projection 41 provided on the lid 30 having the hexagonal fitting part 40 and the operation part 43.

  In the present invention, in order to maintain the fit between the container body and the lid, the locking projections 41 are formed at at least two or more corners. In particular, in the case where the outer peripheral shape of the opening of the container body is a hexagonal shape or an octagonal shape in top view, from the viewpoint of favorably preventing unsealing due to twisting when the container is bent in the process of distribution / sale It is preferable that the stop convex portion 41 is formed at least in two or more opposing corner portions, and as shown in FIGS. 3A and 3D, the corner portion in which the locking convex portion 41 is formed It is more preferable to alternately have corner portions not formed.

  Further, as shown in the illustrated embodiment, it is preferable to provide the locking convex portion 44 also in the side portion of the fitting portion in the fitting portion 40 of the lid from the viewpoint of the fitting property. The locking convex portion 44 formed on the side portion is appropriately set in consideration of the material, shape, size, etc. of the lid similarly to the locking convex portion 41 formed on the above-mentioned corner portion, but the corner portion It can be realized as a locking convex portion 44 having the same projecting height, length and width as the locking convex portion 41 provided on the. From the viewpoint of further improving the fitting property, it is preferable to provide the locking projections 44 on at least two or more sides. In the illustrated embodiment, all eight sides of the fitting portion have a protruding height of 0.5 mm, a length of 20 mm, a width of 1.5 mm, and a locking convex portion 44 having a substantially trapezoidal vertical cross-sectional shape in the longitudinal direction. Is formed.

  Further, as shown in the illustrated embodiment, in the fitting portion 40 of the lid, the recessed groove portion 45 which protrudes downward to the meeting portion of the horizontal portion 40a forming the fitting portion and the peripheral wall portion 32. When the lid 30 is in the closed state, the flange portion 13 of the container main body can be sandwiched by the recessed groove portion 45 and the hanging portion 40b forming the fitting portion (see FIG. 4). . The recessed groove portion 45 acts as a rib in the lid, and it is possible to further suppress twisting, bending or the like of the lid. The recessed groove portion 45 may be partially formed at the meeting portion of the horizontal portion 40 a forming the fitting portion and the peripheral wall portion 32 or may be formed over the entire circumference thereof. The depth of the groove 45 is preferably 1 to 5 mm, and more preferably 1.5 to 3 mm. The width is preferably 2 to 8 mm, more preferably 3 to 6 mm. In the illustrated embodiment, a recessed groove having a height of 2 mm and a width of 4 mm is formed in all parts of the meeting portion between the horizontal portion 40a and the peripheral wall portion 32 except for the corner portion where the passage 42 for vapor removal is formed. 45 are formed.

  The reason that the packaging container according to the present invention configured as described above is excellent in the removability of the lid while maintaining the difficulty in detaching (fitting) at the time of packaging the contents is for packaging It is for a container and a lid to act as follows.

FIG. 4 is a sectional view of an essential part showing a closed state of the packaging container 1 according to the present invention. As shown in this figure, the fitting portion 40 of the lid is externally fitted to the flange portion 13 of the container body. At that time, the locking convex portions 41 formed at two or more corners of the fitting portion 40 of the lid catch (engage) with the flange portion 13 of the container main body, and the lid 30 does not easily come off. It is locked.
In particular, in the case of the packaging container 1 according to the illustrated embodiment, the above-mentioned locking convex portions 41 are formed alternately at eight corner portions of the fitting portion 40 of the regular octagonal lid. In addition, since the locking convex portion 44 is formed on all the side portions of the fitting portion 40, the engagement with the flange portion 13 of the container main body becomes uniform and strong, and the locking is more difficult to remove. Be done. Further, in the packaging container 1 according to the illustrated embodiment, a concave groove 45 projecting downward is formed at the meeting portion of the horizontal portion 40 a forming the fitting portion 40 and the peripheral wall portion 32, and the lid 30 When the lid is in the closed state, the flange portion 13 of the container body is sandwiched between the recessed groove portion 45 and the hanging portion 40b which forms the fitting portion. Therefore, the packaging container according to the illustrated embodiment is excellent in the fitting property, and the container is more easily prevented from being easily detached in the process of transportation, sales, and the like.

On the other hand, in the packaging container 1 according to the present invention, since the locking convex portion is not formed at at least one corner of the fitting portion 40 of the lid, the locking convex portion is formed. The lid can be easily removed from the container main body by removing the lid from the container main body from the corner adjacent to the non-cornered portion. FIG. 5 is a cross-sectional view of an essential part showing a case where the lid 30 of FIG. 4 is to be removed from the container main body 10. As illustrated, even if the locking convex portion 41 is present at the corner of the portion to be removed, the engagement between the locking convex portion 41 and the flange portion 13 of the container body is a pulling force at the time of removal The lid 30 can be easily removed because the locking protrusion is not formed at the corner adjacent to the corner, and the corner is removed without being caught by the flange 13 of the container body. It can be easily removed from the main body 10.
In particular, in the packaging container according to the illustrated embodiment, the locking convex portion 41 is formed on the lid 30 in which the locking convex portion 41 is formed at every other corner of the fitting portion 40. Since the substantially triangle shaped knob which protruded outward which becomes the operation part 43 was provided in the two corner parts which were formed, respectively, the removal site | part of the lid 30 becomes clearer, This makes it easier for the user to remove the finger. Further, since the locking convex portion is not formed on any of the two adjacent corner portions of the corner portion where the operation portion 43 which has become the removed portion is formed, the lid is more removable. Become.

  As mentioned above, according to the packaging container 1 which concerns on this invention, even if it exists in the lid 30 latched by the container main body 10 which has the outer peripheral shape of the polygonal opening of a pentagon or more, packaging of the contents The lid 30 can be easily removed from the container main body 10 at the time of opening while maintaining the difficulty of coming off (fitting).

  As mentioned above, although the embodiment of the packaging container and lid which concern on this invention was described, this invention is not limited to embodiment as stated above, The technique of this invention described in the utility model registration request It goes without saying that various modifications and alterations are possible within the scope of the packaging container and lid as a concept.

  In the packaging container according to the present invention, the lid can be easily removed from the container main body at the time of opening while maintaining the difficulty of detachment at the time of packaging. Can be suitably used as a packaging container for containing and selling it as a content.

DESCRIPTION OF SYMBOLS 1 packaging container 10 container main body 11 bottom part 12 side wall part 13 flange part 14 annular convex part 20 opening part 30 lid body 31 top plate part 32 peripheral wall part 33 convex part 40 fitting part 40a horizontal part 40b hanging part 41 locking convex part 42 passage 43 operation part (knob)
43a unevenness 44 locking projection 45 recessed groove

Claims (12)

For packaging comprising a container main body whose outer peripheral shape of the opening is a polygonal shape having a pentagon or more in a top view and a similar polygonal fitting portion which is fitted outside the opening peripheral edge of the container main body A container,
The lid is locked to the container main body by the hooking protrusion formed on the fitting portion of the lid being hooked on the peripheral edge of the opening of the container main body,
The locking projection is formed at two or more corners of the fitting portion of the lid.
A packaging container characterized by not being formed at at least one corner of the fitting portion of the lid.   The packaging container according to claim 1, wherein the lid body has an operation portion at at least one of corner portions adjacent to the corner portion where the locking convex portion is not formed.   The packaging container according to claim 2, wherein the locking convex portion is not formed on any of two corner portions adjacent to the corner portion having the operation portion.   The packaging container according to any one of claims 1 to 3, wherein an outer peripheral shape of the opening of the container body is a hexagonal shape or an octagonal shape in top view.   The packaging container according to any one of claims 1 to 3, wherein an outer peripheral shape of the opening of the container body is octagonal in top view.   The package according to claim 4 or 5, wherein the lid alternately has a corner in which the locking convex portion is formed and a corner in which the locking convex portion is not formed. container.   The packaging container according to any one of claims 1 to 6, wherein a protruding height of the locking convex portion is 0.2 to 1.0 mm.   The packaging container according to any one of claims 1 to 7, wherein the locking projection is a protrusion having a length of 3 to 60 mm and a width of 0.5 to 3 mm.   The packaging container according to any one of claims 1 to 8, wherein a circumferential vertical cross-sectional shape of the locking convex portion is substantially trapezoidal.   The packaging container according to any one of claims 1 to 9, wherein the locking convex portion is formed of two small convex portions formed on both sides of a vertex of a corner of the fitting portion.   The lid is characterized in that at least one side portion of the side portion of the fitting portion is formed with a locking convex portion which is locked to the peripheral edge of the opening of the container main body. The packaging container in any one of-10. A lid having a similar polygonal fitting portion which is externally fitted to a container main body whose outer peripheral shape of the opening is a polygonal shape having a pentagon or more in a top view,
The lid has a locking projection for locking the lid to the container main body by being hooked to the periphery of the opening of the container main body at the fitting portion,
The locking projection is formed at two or more corners of the fitting portion of the lid.
A lid characterized in that it is not formed at at least one corner of the fitting portion of the lid.

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