JP5373316B2 - Packaging container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging container to which a bottom lid can easily and securely be attached. <P>SOLUTION: The packaging container includes: an upper lid; a bottom lid in which the peripheral wall extends vertically from a top wall, thereby forming a dish with a downward opening, and the top wall is provided with a storage part recessed downward; and a cylindrical body having openings in the upper and lower ends to which the upper lid and the bottom lid fit, respectively, and also having a flap extending from the edge of the lower opening so as to be freely bent from this edge. In the packaging container, when the bottom lid is attached to the cylindrical body, the flap is interposed between the peripheral wall of the bottom lid and the side wall of the storage part such that the lower end of the peripheral wall abuts on the inside corner formed as result of folding the flap and/or the leading end of the flap abuts on the lower face of the top wall of the bottom lid, thereby locking the bottom lid to the cylindrical body. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a packaging container, and more particularly to a configuration of a packaging container body used when displaying and selling a product such as cosmetics.

  Conventionally, as a packaging container for cosmetics or the like, a container made of resin or the like including an upper lid, a bottom lid, and a cylindrical body is known. Usually, after assembling the main body, such a container is attached to the main body with a bottom lid attached thereto, or adhered (Patent Document 1).

  Patent Document 2 discloses a container in which a bottom lid and a main body are formed so as to be integrally bent, and the adhesive strength between the two is further strengthened.

  Further, Patent Document 3 discloses a composite container in which a locking projection and a cut that can be fitted to each other are provided on the bottom lid and the main body, and both are fixed by fitting them.

  However, if the bottom lid is welded or bonded to the main body, it will be transported in the assembled state when the packaging container is delivered, and the volume to be transported will be bulky, and the transportation efficiency will be increased accordingly. There was a problem that could not be achieved.

  In addition, when welding and bonding the bottom lid, it is necessary to perform a separate process that requires glue and welding equipment before the work to store the packaged body in the packaging container, which increases manufacturing costs due to increased man-hours. It also leads to. Furthermore, when different synthetic resin materials are welded, it may be difficult to ensure the strength of the weld due to the compatibility of the materials, and the adhesion / welding surface of a heavy packaged body will break due to its own weight. There was a possibility of falling from the packaging container.

  Furthermore, in the case of a method in which a locking projection and a cut that can be fitted to each other are provided on the bottom lid and the main body, and both are fixed by the fitting, secondary processing for providing the locking projection and the cut is necessary. In the case of using a synthetic resin as a raw material, there are problems such as generation of crack failure during processing and insufficient fitting strength.

JP 2001-29395 A Japanese Patent Laid-Open No. 5-147639 Japanese Utility Model Publication No. 6-71422

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to overcome the drawbacks of such conventional packaging containers and to provide a packaging container capable of simply and reliably attaching a bottom lid.

The present invention solves the above-mentioned problems, and is formed with a top lid and a downwardly-opening dish shape by suspending a peripheral wall from the top wall, and further provided with a storage portion that is recessed downward on the top wall. Each of the upper lid and the bottom lid has an opening that can be fitted in the upper and lower ends, and a lower opening edge is provided with a flap portion that is foldable from the opening edge, and at least a part thereof Is a packaging container comprising a cylindrical body made of a material having a lenticular lens layer, the width of the top wall on the front and rear side of the bottom lid is narrow, and the bottom lid is the cylindrical body. when attached to the flap portion is inserted between the peripheral wall and the housing part side walls of the bottom lid, contact the inner angle portion peripheral wall lower end is bent in the flap portion, and the tip of the flap portion Is in contact with the lower surface of the top wall of the bottom lid. It bottom cover is engaged with the cylindrical body, or by abutting the interior angle portion peripheral wall lower end is bent in the flap portion, or distal end of the lower surface of the said flap portion of the top wall of the bottom cover The packaging container is characterized in that the bottom lid is locked to the cylindrical body by coming into contact with the container.

  In other words, the packaging container of the present invention can easily and surely lock and fix the bottom lid by the flap portion provided at the periphery of the lower opening of the cylindrical body, and is provided with a locking protrusion and a notch. Therefore, it is possible to reduce manufacturing costs because there is no need for a secondary process or a separate process that requires a paste or a welding facility before the packaged body is stored. In addition, the packaging container of the present invention can be securely locked and fixed even if the upper lid, the bottom lid, and the cylindrical body are made of different synthetic resin materials, and the degree of freedom in selecting the packaging container material is increased. spread. Furthermore, since the cylindrical body can be folded during transportation, transportation efficiency can be improved by reducing the packing volume. And after use, since three members, an upper lid, a bottom lid, and a cylindrical body, can be easily separated, when each member is made of a different material, sorting and disposal and reprocessing are facilitated.

  Hereinafter, embodiments of the packaging container of the present invention will be specifically described with reference to the drawings. Note that the present invention is not limited to these embodiments.

  FIG. 1 is a perspective view of a cylindrical body of a packaging container according to the present invention as viewed from the back side. In the figure, 1 is a cylindrical body, 11 is a side wall, 12 is an upper opening, 13 is a lower opening, 14 is a lower opening edge, 15 is a flap portion, and 151 is a bent portion. As shown in the figure, the cylindrical body 1 is formed in a cylindrical shape having openings at the upper and lower ends, and from the lower opening edge 14, a tongue-like flap portion 15 is formed at the substantially central portion on the back surface side wall 11. It is more extended.

  The flap portion 15 is formed integrally with the side wall 11, but is bent inward of the tubular body 1 with a joint portion with the side wall 11, that is, a line continuous with the lower opening edge 14 as a bent portion 151. Is formed to be possible. In this embodiment, the shape of the cylindrical body 1 is formed in an almond-shaped substantially elliptical shape in plan view, but is not limited to this shape, and the product shape of the packaged body such as a circle, a rectangle, a rectangle, and a rhombus It can be appropriately selected according to the above. Further, the flap portion 15 can sufficiently perform its function even at only one location as in the present embodiment, but a plurality of locations may be provided on the lower opening edge 14, and the shape thereof may be a rectangle, a rectangle, a triangle, a semicircle, etc. Can be appropriately selected.

  In this embodiment, the cylindrical body 1 is made of polyethylene terephthalate, and the entire surface is made of a flexible sheet material of a lenticular lens in which convex lenses having a semi-cylindrical shape are juxtaposed in the vertical direction. Therefore, since the character information, the design, and the like displayed on the packaged body (not shown) are viewed through the lenticular lens, an aesthetic visual effect can be obtained. At that time, in order to make the visual effect more effective without blurring, it is preferable that the package body and the tubular body 1 are brought into contact with each other, or the distance between the two is made small. And the back view is formed in a substantially elliptical shape of an almond type so that the back surface approaches the package.

  2 is a perspective view of the bottom lid of the packaging container according to the present invention, FIG. 3a is a plan view thereof, FIG. 3b is a front view thereof, FIG. 3c is a side view thereof, and FIG. . In the figure, 2 is a bottom cover, 21 is a top wall, 22 is a peripheral wall, 23 is a storage part, 24 is a recess, 25 is a recess, 26 is a vertical groove part, 221 is a flange, and 222 is a bent line.

  As shown in the figure, the bottom cover 2 is formed in a downward opening dish shape by hanging a peripheral wall 22 from the top wall 21, and further, a storage portion 23 that is recessed downward is provided at the substantially central portion of the top wall 21. Yes. A part of the product to be packaged, in the present embodiment, the bottom or the head is fitted and stored in the storage unit 23. And in order to acquire the above-mentioned visual effect, the width | variety of the top wall of the front and back side of a bottom cover is narrowed, and the side wall 11 and a to-be-packaged body approach so that the front surface and the back surface of the cylindrical body 1 may be approached. . In a portion where the width of the front wall 21 on the front side and the rear side of the bottom lid 2 is narrowed, a concave portion 24 and a concave portion 25 that are recessed in a substantially U shape in a front view are formed. That is, the front and rear sides of the bottom lid 2 are formed so that the width of the top wall 21 is narrow for the reasons described above, but the width is further increased by adding a taper formed on the peripheral wall 22 described later. In some cases, the strength becomes insufficient, and cracks may occur or break during molding. Therefore, by reducing the height of the peripheral wall 22 of the top wall 21, the width of the top wall 21 is secured without being affected by the taper, and the strength of the bottom cover 2 is ensured. In addition, by forming the concave portion 24 and the concave portion 25 in the front and back portions of the packaged body, the character information and design displayed on the packaged body can be shown as widely as possible.

  The bottom lid 2 is formed in an outer shape / outer size that fits exactly into the opening when the bottom lid 2 is inserted through the lower opening 13 of the cylindrical body 1 and attached to the cylindrical body 1. In the embodiment, as shown in FIG. 3, it is formed in an approximately elliptical shape in plan view, but the portion with which the flap portion 15 provided on the lower opening edge 14 of the cylindrical body 1 abuts is substantially a straight line. It is formed as follows.

  In the packaging container of this embodiment, the bottom lid 2 is made of a flexible sheet made of polypropylene having a greater flexibility than the cylindrical body 1, that is, having a low hardness and a thickness that is easy to deform. This is advantageous in that it is easy to operate in attaching the bottom lid 2 to the cylindrical body 1 described later. Then, when the packaged cosmetic container is stored in the packaging container according to the present embodiment, the rigid bottom of the cosmetic container, which is a rigid body, is loaded into the storage unit 23, and therefore the storage unit 23 is not easily deformed by an external force. In addition, since force acts in a direction not to disengage due to the weight of the cosmetic container itself of the packaged body, the bottom lid 2 is firmly engaged by the cylindrical body 1.

  Furthermore, in this embodiment, a flange 221 is formed at the lower end of the peripheral wall 22. This flange is preferable because the bottom lid 2 can be prevented from being accidentally pushed into the cylindrical body 1 by an unexpected external force or the like. The shape and dimensions are such that they do not hinder the method of attaching the bottom lid 2 to the cylindrical body 1 to be described later, and the bottom lid 2 is not accidentally pushed into the cylindrical body 1 after installation (generally 0). It is desirable that the protrusion protrudes outward within 5 mm, preferably within 0.3 mm.

  Further, in the present embodiment, a horizontal bent line 222 is provided in the middle of the peripheral wall 22, and the peripheral wall 22 above the bent line 222 has a taper that is slightly inclined toward the center of the bottom cover 2. Such a taper is preferable because insertion at the time of attaching the bottom lid 2 to the tubular body 1 becomes easier. Further, in the present embodiment, two vertical groove portions 26 are recessed in the peripheral wall 22 from the upper end to the lower end of the peripheral wall 22. The vertical groove 26 functions to release air from the container when the bottom lid 2 is attached to the cylindrical body 1, so that the bottom lid 2 can be easily attached to and detached from the cylindrical body 1. ,preferable.

  In this embodiment, the planar view shape of the storage portion 23 is formed in an elliptical shape in accordance with the shape of the bottom portion of the packaged body, but the packaged body is formed in the packaging container of the present invention by using the elliptical shape. Without rotating, the character information and design displayed on the package can always be directed in a certain direction with respect to the packaging container.

  4a is a plan view of an upper lid of the packaging container according to the present invention, FIG. 4b is a front view thereof, FIG. 4c is a side view thereof, and FIG. 4d is an end view of the same B-B '. In the figure, 3 is an upper lid, 31 is a bottom wall, 32 is a peripheral wall, 33 is a storage part, 34 is a vertical groove part, 35 is a knob part, 321 is a flange, and 322 is a bent line.

  In the packaging container of this embodiment, the upper lid 3 is made of the same flexible polypropylene sheet as the bottom lid 2, and the upper lid 3 is formed by raising the peripheral wall 32 from the bottom wall 31 as shown in the figure. Accordingly, a storage portion 33 that is formed in an upwardly open dish shape and is recessed upward at substantially the center of the bottom wall 31 is provided. In the storage portion 33, a part of the product to be packaged, in the present embodiment, the head portion or the bottom portion is fitted and stored. The upper lid 3 is formed to have an outer shape and an outer size that fits exactly into the opening when the upper lid 3 is inserted through the upper opening 12 of the tubular body 1 and attached to the tubular body 1.

  Furthermore, in this embodiment, a flange 321 is formed at the upper end of the peripheral wall 32. Such a flange is preferable because the upper lid 3 can be prevented from being accidentally pushed into the cylindrical body 1. As for the shape and dimensions, it is desirable that the upper lid 3 protrudes outward to the extent that the upper lid 3 is not accidentally pushed into the cylindrical body 1 after the upper lid 3 is attached to the cylindrical body 1.

  Further, in this embodiment, a horizontal bent line 322 is provided in the middle of the peripheral wall 32, and the peripheral wall 32 below the bent line 322 has a taper that is slightly inclined toward the center of the upper lid 3. Such a taper is preferable because the attachment of the upper lid 3 to the tubular body 1 becomes easier. Further, in the present embodiment, two vertical groove portions 34 are recessed in both side surface portions of the peripheral wall 32. Such a vertical groove 34 is preferable because it functions to release air when the upper lid 3 is attached to the cylindrical body 1 and allows the air in the container to escape, and makes it easier to attach and remove the upper lid 3 to the cylindrical body 1. . Further, in the present embodiment, the tongue-shaped knob portion 35 is extended from a part of the flange 321, so that the upper lid 3 can be removed more easily.

  In the present embodiment, the tubular body 1, the bottom lid 2 and the top lid 3 described above are arranged as shown in FIG. 7, and after the bottom lid 2 is first attached to the tubular body 1, the packaged body is stored. Then, the upper lid 3 is attached, and other decorations and packaging are applied as necessary, and the packaging is completed.

  Next, a method of attaching the bottom lid 2 to the cylindrical body 1 and a method for locking and fixing the same will be described. First, the flap portion 15 provided at the lower opening edge 14 of the cylindrical body 1 is directed toward the inside of the container. In this state, the bottom cover 2 is inserted into the lower opening 13 from the top wall 21 side. At this time, since the flap portion 15 is folded inside the side wall 11, it does not hinder the insertion of the bottom lid 2.

  Even if the bottom lid 2 is further inserted into the cylindrical body 1 and the flange 221 of the bottom lid 2 is once locked to the lower end of the side wall 11 of the cylindrical body 1, the flexibility of the bottom lid 2 is utilized. Further, the flange 221 portion is also inserted into the lower opening 13, and finally, the bottom lid 2 is advanced until it is inserted into the lower opening 13. When the insertion is continued as shown in FIG. 5, the distance Y from the bent portion 151 of the flap portion 15 to the lower end portion of the peripheral wall 22 of the bottom lid 2 becomes longer than the length X of the flap portion 15. The flap portion 15 that has been sandwiched and folded between the side wall 11 and the peripheral wall 22 becomes free.

  The flap portion 15 sandwiched between the side wall 11 and the peripheral wall 22 has a restoring force due to being freed, and a gap is formed between the side wall 11 and the side wall 11. In this state, this time, the storage unit 23 and the like are grasped with a finger and the bottom lid 2 is pulled down. As a result, the peripheral wall 22 enters the gap between the side wall 11 and the flap portion 15, and the flap portion 15 is inserted between the peripheral wall 22 and the side wall 231 of the storage portion 23. As shown in FIG. 6, when the lower end of the peripheral wall 22 reaches the inner corner portion of the bent portion 151, when the tip of the flap portion 15 reaches the lower surface of the top wall of the bottom cover 2, Since they are stopped at the same time, the peripheral wall 22 is locked to the flap portion 15 so that the bottom lid 2 cannot be further lowered. After that, when the packaged body is stored in the packaging container of the present invention, as described above, the head and the bottom of the packaged product having rigidity are fitted into the storage unit 23, and the storage unit 23 is not easily deformed by an external force. Thus, the force acts in a direction not to disengage due to the weight of the packaged body itself, so that the bottom lid 2 is firmly engaged with the cylindrical body 1. By this method, the bottom cover 2 is fixed to the cylindrical body 1 in a non-removable state.

  In addition, as for the method of attaching the upper lid 3 to the cylindrical body 1, it is not necessary to fix by the flap portion like the bottom lid 2, so the upper lid 3 is inserted into the upper opening 12 from the top wall 31 side, and the flange 321 If the insertion is advanced to the point where it engages with the upper end of the side wall 11, it is completed. At the time of attachment, only the knob portion 35 protrudes from the cylindrical body 1, and therefore, when removing the upper lid 3, it is only necessary to hold the knob portion 35 with a finger and pull it upward.

  The material of the packaging container of the present invention is not limited to this embodiment, and any of the cylindrical body 1, the bottom lid 2, and the top lid 3 can be used for ordinary containers such as polyethylene terephthalate, polyethylene naphthalate, polypropylene, polyethylene, polystyrene, and the like. Can be arbitrarily selected from these synthetic resins, these recycled resins, paper, metal, etc. Especially when the package is a cosmetic product, the character information and design displayed on the cosmetic product and the cosmetics are stored in the packaging container. In view of the outside, it is preferable that the cylindrical body 1 is made of a transparent synthetic resin or a recycled resin thereof, since the effects of this patent can be fully enjoyed. Regardless of whether the bottom lid 2 and the top lid 3 are transparent or opaque, any of these synthetic resin materials may be used, and it is preferable to form them integrally by vacuum molding or the like.

  In the packaging container of the present invention, the upper lid, the bottom lid, and the cylindrical body can be reliably locked and fixed even if they are made of different synthetic resin materials, so the degree of freedom in selecting the packaging container material is expanded. For example, materials such as polyethylene terephthalate and polyethylene naphthalate that make the appearance beautiful are used for the cylindrical body, and materials such as polypropylene and polyethylene that are easy to mold are used for top and bottom lids with complicated shapes. In addition, it is reasonable to select a suitable material for each member of the cylindrical body, which is preferable in that the effects of this patent can be fully enjoyed.

In the packaging container of the present invention, the attachment of the bottom lid to the cylindrical body is made by using the flap portion as described above, but also regarding the attachment of the top lid to the cylindrical body and the attachment of the bottom lid, Needless to say , in addition to the above-described method using the flap portion, an additional method such as welding, bonding using an adhesive, or a locking projection (undercut) may be used in combination.

The perspective view which looked at the cylindrical body of the packaging container which concerns on this invention from the back side. The perspective view of the bottom cover of the packaging container which concerns on this invention. The top view of the bottom cover of the packaging container which concerns on this invention. The front view of the bottom cover of the packaging container which concerns on this invention. The side view of the bottom cover of the packaging container which concerns on this invention. The A-A 'end elevation of the bottom lid of the packaging container according to the present invention. The top view of the upper cover of the packaging container which concerns on this invention. The front view of the upper cover of the packaging container which concerns on this invention. The side view of the upper cover of the packaging container which concerns on this invention. B-B 'end view of the upper cover of the packaging container which concerns on this invention. The expanded sectional view which showed the state which has inserted the bottom cover in the cylindrical body of the packaging container which concerns on this invention. The expanded sectional view which showed the state which attached the bottom cover to the cylindrical body of the packaging container which concerns on this invention. The perspective view which showed arrangement | positioning of the cylindrical body, bottom cover, and top cover before assembling the packaging container which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ...... Cylindrical body 2 ...... Bottom cover 3 ... Upper cover 11 ...... Side wall 12 ...... Upper opening 13 ...... Lower opening 14 ...... Lower opening edge 15 ...... Flap part 21 ...... Top wall 22 ...... Perimeter wall 23 …… Storage portion 24…… Recess 25…… Recess 26…… Vertical groove portion 31…… Bottom wall 32…… Perimeter wall 33…… Storage portion 34…… Vertical groove portion 35…… Knob portion 151…… Bent portion 221…… Flange 222 ... ... Bend line 231 ... ... Side wall 321 ... ... Flange 322 ... ... Bend line X ... ... Length of flap 15 Y ... ... Distance from bent part 151 to lower end of peripheral wall 22
that's all

Claims (9)

An upper lid, a bottom lid that is formed in a downward opening dish shape by suspending a peripheral wall from the top wall, and further provided with a storage portion that is recessed downward in the top wall, and the top lid and the bottom lid can be fitted inside each other. A cylindrical portion formed of a material having a lenticular lens layer extending at the lower and lower end edges of the lower opening edge with a flap portion formed so as to be foldable from the opening edge. A front and rear top wall of the bottom lid is narrow, and when the bottom lid is attached to the cylindrical body, the flap portion is the bottom lid. is inserted between the peripheral wall and the housing side walls, the peripheral wall lower end is abutted against the bent inner angle portion of the flap portion, and the tip of the flap portion is brought into contact with the lower surface of the top wall of the bottom cover The bottom lid is locked to the cylindrical body by , Engagement by the peripheral wall lower end abuts on the folded inner angle portion of the flap portion, or bottom lid by the front end of the flap portion is brought into contact with the lower surface of the top wall of the bottom lid to the tubular body A packaging container characterized by stopping.   The peripheral wall of the bottom lid is tapered toward the center of the bottom lid, and at least one of the front and rear top walls of the bottom lid has a substantially U shape in front view. 2. The width of the top wall is secured without being affected by the taper by lowering the height of the peripheral wall in the concave portion by forming the concave portion recessed in a letter shape. Packaging container. A flange is formed at the lower end of the peripheral wall of the bottom lid and the upper end of the peripheral wall of the upper lid, or a flange is formed at the lower end of the peripheral wall of the bottom lid or the upper end of the peripheral wall of the upper lid. The packaging container according to claim 1 or 2, characterized by the above.   The packaging container according to any one of claims 1 to 3, wherein a vertical groove is formed in the peripheral wall of the bottom lid and the top lid from the upper end to the lower end.   The packaging container according to any one of claims 1 to 4, wherein at least the bottom lid is formed of a flexible sheet.   The packaging according to claim 5, wherein the cylindrical body is constituted by a flexible sheet, and the flexibility of the bottom cover is larger than the flexibility of the cylindrical body. container.   By storing the packaged body in the packaging container, at least a part of the packaged body having rigidity is fitted into the storage unit of the bottom lid, and deformation due to an external force of the storage unit is limited. The packaging container according to claim 5 or 6.   The packaging container according to any one of claims 1 to 7, wherein the cylindrical body and the bottom lid are made of different types of materials.   The packaging container according to any one of claims 1 to 8, wherein the cylindrical body is made of a transparent synthetic resin material.

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