JP2014231363A - Packaging material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging material that hardly falls even when packaging a comparatively big packaged article and has excellent stability.SOLUTION: A packaging material 10, formed of a sheet-like material 11 comprised mostly of synthetic resin foam, comprises: a center seat portion 20 on which a bottom portion M1 of a packaged article M is placed; reversing/tilting portion 30 that is obliquely extended downward and outward from the center seat portion 20 so as to raise the center seat portion 20 up and to reverse inward together with the center seat portion 20 declining; a wrapping packaging piece 40 formed in a radial fashion further outward than the reversing/tilting portion 30. In the center seat portion 20, a part of a seat surface 21 thereof expands outside and is formed as a plurality of bottom leg portions 25, and the reversing/tilting portion 30 is formed via the center seat portion 20 and an annular bump portion 31.

Description

  The present invention relates to a packaging material made of a sheet-like material mainly composed of a synthetic resin foam.

  For example, in order to protect articles that are easily damaged, such as fruits and vegetables, from the outside, damage to the surface, etc., a packaging material that can individually wrap almost the entire outside of the article (package) Is used (see, for example, Patent Document 1).

  This packaging material is made of a sheet-like material mainly composed of a synthetic resin foam, and has a central seat on which the bottom of the article to be packaged is placed, and the central seat is lifted upward and the central seat is lowered. The inversion inclination part extended in inclination from the said center seat part to the outer side of the lower part so that it might invert inward, and the covering piece radially formed outward from the inversion inclination part.

  In the above-mentioned conventional packaging material, it is possible to wrap a package by simply placing the package on the central seat, pressing the bottom of the package, and inverting the inverted slope, and in particular, abbreviations such as peach, apple, and melon. Suitable for packaging spherical fruits. Further, since the sheets can be stacked while being stored and transported, it is advantageous in that space can be saved during storage and storage.

  However, in the case of conventional packaging materials, when a relatively large package such as pineapple or mango is packaged, it is easy to fall down due to the weight of the package, and an unnecessary impact is applied to the package. There was a problem with sex.

Japanese Patent No. 2739675

  The present invention has been made in view of the above points, and provides a packaging material that is resistant to overturning and has excellent stability even when a relatively large packaged item is packaged.

  That is, the invention of claim 1 is made of a sheet-like material mainly composed of a synthetic resin foam, and has a central seat on which the bottom of the article to be packaged is placed, the central seat being lifted upward, and the central seat A reversing inclined portion extending obliquely outward from the center seat portion so as to be reversed inward as the portion descends, and an covering piece radially formed outward from the reversing inclined portion. The center seat portion is formed as a plurality of bottom leg portions with a part of the seat surface bulging outward, and the inverted inclined portion is formed between the center seat portion and the annular step portion. It is related with the packaging material characterized by being formed through.

  The invention according to claim 2 relates to the packaging material according to claim 1, wherein the central seat is formed in an elliptical shape.

  A third aspect of the present invention relates to the packaging material according to the second aspect, wherein the bottom leg portion is two ridges arranged in parallel to the minor axis side of the elliptical central seat portion.

  A fourth aspect of the present invention relates to the packaging material according to any one of the first to third aspects, wherein a plurality of ribs are formed radially on the outer surface side of the inversion inclined portion.

  The invention according to claim 5 relates to the packaging material according to any one of claims 1 to 4, wherein the covering piece is formed into a plurality of tongue pieces.

  The packaging material according to the invention of claim 1 is made of a sheet-like material mainly composed of a synthetic resin foam, and a central seat portion on which a bottom portion of the article to be packaged is placed; An inversion inclined portion extending with an inclination outward from the center seat portion so as to invert with the lowering of the central seat portion, and a covering piece formed radially outward from the inversion inclination portion The center seat portion is formed as a plurality of bottom leg portions with a part of the seat surface bulging outward, and the inverted inclined portion is annular with the center seat portion. Since it is formed through the stepped portion, even when a relatively large package is packaged, sufficient stability can be ensured and the fall can be suppressed, and the packaging material can be raised to Can keep breathability and improve heat insulation (cold insulation)

  The invention of claim 2 is that in claim 1, since the central seat is formed in an elliptical shape, it is possible to stably place a packaged object that is not spherical.

  The invention of claim 3 is the invention according to claim 2, wherein the bottom leg is two ridges arranged in parallel to the minor axis side of the elliptical central seat portion, so that the shape of the uneven shape is small. It is easy and can support the elliptical center seat part (bottom part) of a packaging material stably.

  According to a fourth aspect of the present invention, in the first to third aspects, since the plurality of ribs are formed radially on the outer surface side of the inversion inclined portion, the inversion inclination portion is given waist strength and is inverted in the inner direction. Can be reliably and effectively performed, and the buffering property and the heat insulation (cold insulation) property in the vicinity of the lower part of the article to be packaged can be improved.

  According to a fifth aspect of the present invention, in the first to fourth aspects, since the covering piece is formed in a plurality of tongue pieces, it is closed inward along with the reversal of the reversing inclined portion to surround the packaged object. Can be effectively wrapped.

It is a perspective view of the packaging material which concerns on one Example of this invention. It is a top view of the packaging material of FIG. It is sectional drawing of the packaging material of FIG. It is sectional drawing of the packaging material which packaged the to-be packaged object. It is a side view of the packaging material which packaged the to-be packaged object. It is sectional drawing of the shaping | molding die which shape | molds a packaging material.

  The packaging material 10 which concerns on one Example of this invention shown in FIGS. 1-3 consists of the sheet-like object 11, and is provided with the center seat part 20, the inversion inclination part 30, and the covering piece 40. FIG. This packaging material 10 is suitable for packaging of articles that are easily damaged, such as fruits and vegetables, in particular, relatively large packages M such as pineapples and mangoes.

  The sheet-like object 11 is formed of a material that has a flexibility capable of enclosing the article to be packaged M, and has a protective property and a buffer property that suppress damage to the surface thereof. The sheet-like material 11 mainly comprises a known synthetic resin foam such as polyethylene, polypropylene, polystyrene, polyurethane, etc. in order to obtain excellent heat retention (coldness) in addition to flexibility, protection, and buffering properties. The following materials are preferably used.

  As shown in FIGS. 2 and 3, the center seat portion 20 is a portion on which the bottom M <b> 1 of the article to be packaged M is placed, and is provided at a substantially central portion of the packaging material 10. It becomes the bottom 22 of the packaging material 10. As shown in FIGS. 1 and 3, the central seat portion 20 has a seat surface 21 on which the article to be packaged M is placed, and the seat surface 21 is lifted to the inside (upper side when unwrapped). Consists of. The shape of the seating surface 21 of the central seat 20 is appropriately determined according to the shape of the article to be packaged M, such as a substantially circular shape, a substantially elliptical shape, a substantially other polygonal shape such as a substantially triangular shape or a substantially rectangular shape. In an Example, it is set as substantially elliptical shape, and the to-be-packaged goods M which are not spherical shapes, such as a pineapple and a mango, can be mounted stably.

  In the said center seat part 20, as shown in FIGS. 1-3, a part of seating surface 21 bulges outside (at the time of non-wrapping), and is formed as the several bottom leg part 25. As shown in FIG. As shown in FIGS. 4 and 5, the bottom leg 25 supports the packaging material 10 and suppresses overturning by being grounded when the article M is packaged. The number and shape of the bottom leg portions 25 are not particularly limited as long as the stability of the packaging material 10 can be sufficiently ensured, and are arranged in three protrusions or a square shape arranged in a triangular shape. Four protrusions are appropriate. Since the bottom leg portion 25 of the embodiment is the two protrusions 26, 26 disposed substantially parallel to the short diameter side of the elliptical central seat portion 20, the shape of the bottom leg portion 25 is small and the molding is easy. The oval central seat 20 (bottom 22) of the material 10 can be stably supported. As shown in FIGS. 4 and 5, the bottom leg portion 25 raises the packaging material 10 to form an appropriate space in the bottom portion 22 of the packaging material 10 to ensure air permeability and keep warm (cold). Can be improved.

  As shown in FIGS. 3 and 4, the inversion inclined portion 30 is lifted from the central seat portion 20 to the lower outer side so as to lift the central seat portion 20 upward and reverse inward with the lowering of the central seat portion 20. It extends with an inclination, and is formed in particular via the central seat portion 20 and the annular step portion 31. The annular step portion 31 is a step portion formed in an annular shape along the entire circumference along the boundary portion between the central seat portion 20 and the inversion inclined portion 30, and defines the inversion portion of the inversion inclination portion 30. . In the embodiment, the inversion inclined portion extended from the central seat portion 20 to the lower outer side by placing the article to be packaged M on the central seat portion 20 and pressing the bottom portion M1 to lower the central seat portion 20. 30 is inverted (turned over) inward via the annular step portion 31 and is wrapped around the outer periphery of the article to be packaged M in a curved state. At this time, since the inversion inclined portion 30 is inverted from the annular step portion 31, the deformation of the seat surface 21 of the central seat portion 20 is suppressed, and the stability of the article M to be packaged placed on the seat surface 21 is hindered. There is no.

  As shown in FIGS. 3 and 5, a plurality of ribs 35 are formed radially on the outer surface side of the inversion inclined portion 30. By forming the rib 35 on the inversion inclined portion 30, the inversion inclination portion 30 is given waist strength so that the inversion to the inside direction is performed reliably and effectively, and in the vicinity of the lower part of the article M to be packaged at the time of packaging It is possible to improve the buffering property and the heat retaining (cold retaining) property.

  As shown in FIGS. 1 and 2, a plurality of the wrapping pieces 40 are integrally formed radially outward from the inversion inclined portion 30. The wrapping piece 40 wraps around the article to be packaged M as the reversing inclined part 30 is reversed, and protects the article to be packaged M together with the reversing inclined part 30. The covering piece 40 is formed in an appropriate number, width, length, and shape according to the shape and size of the article to be packaged M. The wrapping piece 40 according to the embodiment is formed into a plurality of tongue pieces, and as shown in FIGS. Can be encased.

  Further, on the outer surface side of the covering piece 40, a rib 35 formed on the inversion inclined portion 30 is integrally extended. Therefore, it is possible to give waist strength to the covering piece 40 and to improve the buffering property and the heat retaining (cold retaining) property in the vicinity of the side surface and the upper part of the packaged object M during packaging.

  Next, the manufacturing method of the packaging material 10 is demonstrated. As for the manufacturing method of the packaging material 10, as shown in FIG. 6, the vacuum press molding using the vacuum forming die 50 is suitably implemented from a viewpoint of a moldability and economical efficiency. In the figure, reference numeral 51 is a lower mold having a mold surface 52 that defines the shape of the packaging material 10, 53 is an upper mold having a mold surface 54 corresponding to the mold surface 52 of the lower mold 51, and 55 is a mold surface of the lower mold 51. A vacuum suction hole 56 is opened at 52, and a suction device 56 such as a vacuum pump connected to the vacuum suction hole 55.

  In this manufacturing method, the preheated sheet-like object 11 is placed in the lower mold 51, the suction device 56 is operated through the vacuum suction hole 55 to bring the sheet-like object 11 into close contact with the mold surface 52 of the lower mold 51, The upper die 53 is pressed against the sheet-like object 11 on the lower die 51, and vacuum press molding is performed between the lower die 51 and the upper die 53, and a predetermined shape is imparted to the sheet-like object 11. As described above, by performing the vacuum press molding, it is possible to easily shape a fine shape such as the bottom leg portion 25 and the rib 35 to the sheet-like material 11.

  As shown and described above, the packaging material 10 of the present invention is composed of the sheet-like material 11 mainly composed of a synthetic resin foam, and the central seat portion 20 on which the bottom M1 of the article to be packaged M is placed, A reversing inclined portion 30 extending from the central seat portion 20 with an inclination to the lower outer side so as to lift the seat portion 20 upward and reverse inward with the lowering of the central seat portion 20, and a reversing inclined portion 30 The center seat portion 20 is formed as a plurality of bottom leg portions 25 with a part of the seat surface 21 bulging outward, and is inverted. Since the inclined portion 30 is formed via the central seat portion 20 and the annular step portion 31, the inverted inclined portion 30 is inverted from the annular step portion 31 and deformation of the seat surface 21 of the central seat portion 20 is suppressed. Hindering the stability of the article M to be placed on the surface 21 In addition, even when a relatively large article M is packaged by grounding the bottom leg portion 25 during packaging, sufficient stability can be ensured during packaging, and falling can be suppressed. Can be raised to ensure the air permeability of the bottom portion 22 and improve the heat insulation (cold insulation) property. Furthermore, since it is in the form of a sheet, it can be stacked during storage and transportation, and space saving can be achieved during storage and storage.

  Further, if the central seat portion 20 has an elliptical shape and the bottom leg portion 25 has two ridges arranged in parallel to the short diameter side of the central seat portion 20, there are few uneven shapes and molding is easy, and packaging is possible. The oval central seat 20 of the material 10 can be stably supported.

  In addition, by forming a plurality of ribs 35 radially on the outer surface side of the inversion inclined portion 30, the inversion inclination portion 30 is given waist strength, and inversion in the inner direction is performed reliably and effectively, It is possible to improve the buffering property and the heat insulation (cold insulation) property in the vicinity of the lower part of the article to be packaged M at the time of packaging.

  Further, if the covering piece 40 is formed in a plurality of tongue pieces, the plurality of tongue-like covering pieces 40 are closed inward as the reversing inclined portion 30 is turned over, and the periphery of the packaged article M is effected. It becomes possible to envelop.

  In addition, the packaging material of this invention is not limited only to the above-mentioned Example, A part of structure can be changed suitably and implemented in the range which does not deviate from the meaning of invention.

DESCRIPTION OF SYMBOLS 10 Packaging material 11 Sheet-like object 20 Center seat part 21 Seat surface 25 Bottom leg part 30 Inversion inclination part 31 Annular level | step-difference part 35 Rib 40 Covering piece M Packaged object M1 Bottom part of packaged object

Claims (5)

It consists of a sheet-like material mainly composed of synthetic resin foam, and has a central seat on which the bottom of the article to be packaged is placed, and lifts the central seat upward and reverses inward with the lowering of the central seat. As described above, a wrapping material composed of a reversing slanted portion extending with an inclination outward from the center seat portion, and a covering piece formed radially outward from the reversing sloping portion,
The central seat portion is formed as a plurality of bottom leg portions with a part of the seat surface bulging outward, and the inverted inclined portion is formed via the central seat portion and an annular step portion. A packaging material characterized by that.   The packaging material according to claim 1, wherein the central seat is formed in an elliptical shape.   The packaging material according to claim 2, wherein the bottom leg is two ridges arranged in parallel to the short diameter side of the elliptical central seat.   The packaging material according to any one of claims 1 to 3, wherein a plurality of ribs are radially formed on an outer surface side of the inversion inclined portion.   The packaging material according to any one of claims 1 to 4, wherein the covering piece is formed into a plurality of tongue pieces.

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