JP6119675B2 - Packing material - Google Patents

Description

  The present invention relates to a packaging material.

  After production, the product or part is stored in a packing material such as a cardboard box and transported to an agent or customer factory. Transportation is carried out domestically or overseas, and the packaged goods are subjected to various external forces such as vibration and shock. Various shapes of packing materials are provided every day in order to efficiently transport while protecting the objects to be packed in the transportation environment.

  For example, Patent Document 1 below discloses a packaging material for an air conditioner characterized in that both corners of a cushioning material are cured by heat treatment. By hardening by heat treatment, the buffer member is strengthened without impairing the impact buffering effect, and a buffer material that is less damaged is provided.

  Further, in Patent Document 2 below, a cushioning material that supports both ends of an air conditioner having a curved surface shape on the front surface is provided with an inclination by rotating the air conditioner with respect to the cushioning material insertion portion. A packaging material characterized by being inserted is disclosed. Providing cushioning material with excellent protection function by forming a sloped insertion section to ensure a sufficient distance between the structurally weak part (weak part) of the air conditioner and the top surface of the cushioning material doing.

  Patent Document 3 below discloses a packaging material that solves the problem of load collapse or product deformation during transportation by reliably receiving a stacked load with a support through a reinforcing material. Conventionally, the structure is such that the load is borne by the pillars at both corners of the cushioning material, but when the flap of the box is folded inward or due to shaking and external pressure during transportation, the pillar falls off from the top edge of the reinforcing material There was a problem that the function of the support was not demonstrated. In view of this, a packing material that secures rigidity using a column is provided by providing a reinforcing member that disperses a load on the column and a buffer material structure that holds the reinforcing member.

JP 2003-26245 A JP 2009-90994 A Japanese Patent Laid-Open No. 10-24925

  Conventional packing materials have a structure in which they are sandwiched from the left and right with a cushioning material that has a recess that matches the shape of the product.The product and the cushioning material support the loading load during storage or transportation, so that weak parts of the product are deformed. There is a drawback that it is easy. In order to compensate for this drawback, the rigidity of the entire packaging can be improved by decreasing the foaming ratio of the buffer material to improve the rigidity, or by increasing the wall thickness. However, if the expansion ratio is lowered, there is a problem that the packaging material cost increases, and if the volume is increased, the transportation cost increases, and it is necessary to solve this.

  In order to solve the above problem, in Patent Document 1, rigidity is improved by heat-processing the buffer material. However, it is necessary to increase the volume of the cushioning material for heat shrinkage, and there is a disadvantage that an additional process of thermal processing is required in the production of the cushioning material, leading to an increase in packing material cost.

  Moreover, in patent document 2, the distance of the weak part of an air conditioner and the surface of the top | upper surface of a buffering material is ensured by providing an inclination in the insertion part of a buffering material. However, it is difficult to apply to this product where most of the front of the product is weak, and even if it is applied, there is a drawback that the packaging volume becomes large and the transportation cost is deteriorated.

  Moreover, in patent document 3, the support | pillar part is provided in the top cushioning material in order to make the L-shaped support | pillar function reliably, in order to make the L-shaped support | pillar function reliably. By adding a reinforcing member on top of it, the load is supported by the support. However, there are drawbacks that lead to an increase in the number of parts and the packing process.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a packaging material that can suppress a large vertical load on a product at low cost.

The packing material according to the present invention has a side wall portion having a concave portion formed of three surfaces, a first surface and a second surface opposite to the first surface, and the second surface has the concave portion. A cushioning material comprising: an upper surface connected to the side wall so as to cover one side; and a convex portion provided immediately above the sidewall on the first surface; and the cushioning material from the upper surface side An outer cap that covers the four flat bodies, and the outer cap extends from the end of the first flat body of the four flat bodies and is folded so that the cushioning material has the outer cap. An inner flap that overlaps the upper surface portion, and an outer flap that extends from the end of the second planar body of the four planar bodies and is folded to overlap the inner flap, and the inner flap is folded and the Does not overlap with the convex part when covered with cushioning material By the end of the outer flap overlying the end of the over previously from the roots of the outer flap first planar body, said outer flap covers the convex portion.

  ADVANTAGE OF THE INVENTION According to this invention, it can suppress that a big vertical load is applied to a product at low cost by providing a convex part just above the side wall part in the upper surface part of a shock absorbing material.

It is a disassembled perspective view which shows the packing material concerning embodiment of this invention. It is a perspective view which shows the top shock absorbing material concerning embodiment of this invention. It is sectional drawing which shows the top cushioning material concerning embodiment of this invention. It is sectional drawing which shows the top cushioning material concerning embodiment of this invention. It is a perspective view which shows the exterior cardboard cap concerning embodiment of this invention.

  FIG. 1 is an exploded perspective view showing a packaging material 1 according to an embodiment of the present invention. The packing material 1 is used for packing the product 4 to be packed, and is used for packing for transportation and storage in the transportation of the product 4 in logistics. The product 4 is, for example, an air conditioner. As shown in FIG. 1, the product 4 is sandwiched between the left and right side surfaces by the top cushioning material 8 and covered with an exterior cardboard cap 16 formed of cardboard. More specifically, the packing material 1 includes an exterior cardboard cap 16, an exterior cardboard tray 6, a top cushioning material 8, a bottom cushioning material 5, and a band 3 that binds these from both sides in a stacked state. The packing material 1 is used for packing with the back side of the product 4 facing down. Inside the packing material 1, a bottom cushioning material 5 supported at two places on the left and right sides, and a top cushioning material 8 having a recess for receiving and holding two sides are provided as cushioning materials. An outer corrugated cardboard tray 6 and an outer corrugated cardboard cap 16 for accommodating these sets are further provided. The band 3 provided outside binds these sets together, so that the movement of the internal top cushioning material 8 and the bottom cushioning material 5 is regulated. The top cushioning material 8 and the bottom cushioning material 5 are preferably made of foamed synthetic resin (that is, polystyrene foam), and more preferably have a uniform foaming density. It should be noted that the exterior cardboard cap 16 and the exterior cardboard tray 6 may be replaced with an exterior cap and an exterior tray formed of a material other than the cardboard, although they have the same shape.

  FIG. 2 is a perspective view showing the top cushioning material 8 according to the embodiment of the present invention. The shape of the top cushioning material 8 will be described in more detail with reference to FIG. 2. The top cushioning material 8 includes a top surface portion 81 having a planar shape, a side wall portion 82 having a U-shaped outer shape, and a convex portion 9 provided on the top surface portion 81. And. The side wall portion 82 includes wall portions 821 to 823. The wall portion 821 and the wall portion 822 are parallel to each other, and the wall portion 823 is connected to the end portions of the wall portion 821 and the wall portion 822, thereby forming a U-shaped outer shape as a whole. Each of the wall portions 821 to 823 has a surface facing inward, and a recess 820 is formed by the three surfaces facing inward. The upper surface portion 81 includes a first surface 811 and a second surface 812 opposite to the first surface 811. The second surface 812 of the upper surface portion 81 is connected to the side wall portion 82, and one side of the recess 820 is covered with the second surface 812. On the side not connected to the upper surface portion 81, the concave portion 820 is opened. The convex portion 9 is provided immediately above the side wall portion 82 in the first surface 811 of the upper surface portion 81. The exterior cardboard cap 16 covers the top cushioning material 8 from the upper surface portion 81 side.

  As described with reference to FIGS. 1 and 2, according to the present embodiment, the convex portions 9 are provided at the corners of the upper surface portion 81. As a result, the rate at which the vertical load applied to the packing material 1 is transmitted to the side wall portion 82 of the top cushioning material 8 is increased, while the vertical load transmitted to the upper surface portion 81 is reduced, so that the load burden on the product 4 is reduced. Less.

  In the packaging material 1 according to the present embodiment, as a preferred form, the convex portions 9 are provided at the corners of the upper surface portion 81, and the convex portions 9 are symmetrical with respect to the center of the upper surface portion 81. As a result, the load can be distributed in a balanced manner. More specifically, the side wall portion 82 includes first and second wall portions 821 and 822 that face each other, and a third wall portion 823 that connects one end of each of the first and second wall portions 821 and 822. Yes. The convex portion 9 includes a first convex portion 91 provided immediately above the first wall portion 821 and a second convex portion provided directly above the second wall portion 822 and having a plane shape that is line symmetrical with the first convex portion 91. 92. Thereby, a load can be applied to the top cushioning material 8 in a balanced manner. The convex portion 9 extends along the corner of the upper surface portion 81 and has an L shape in plan view.

  3 and 4 are cross-sectional views showing the top cushioning material 8 according to the embodiment of the present invention, and are diagrams for explaining the dimensions of the convex portion 9. In the packaging material 1 concerning this Embodiment, the width | variety of the convex part 9 is made into below the thickness of the side wall part 82 just under the said convex part 9 as a preferable form. That is, it is preferable to design so that the relationship between the width dimension X1 of the convex part 9 and the thickness dimension X2 of the side wall part 82 of the top cushioning material 8 is “X1 ≦ X2.” Thereby, the ratio of the load concerning the side wall part 82 can be enlarged reliably. Moreover, as a preferable form, the height of the convex portion 9 is set to be equal to or greater than the thickness of the exterior corrugated cardboard cap 16. That is, it is preferable to design the height dimension Y of the convex portion 9 to be equal to or greater than the thickness of the corrugated cardboard constituting the exterior corrugated cardboard cap 16 (more specifically, equal to or greater than the thickness of the inner flap 14). Thereby, the ratio of the load concerning the side wall part 82 can be enlarged reliably.

  FIG. 5 is a perspective view showing the exterior cardboard cap 16 according to the embodiment of the present invention, and shows the positional relationship between the exterior cardboard cap 16 and the convex portion 9 of the top cushioning material 8. The exterior cardboard cap 16 includes an outer frame 161, an inner flap 14, and an outer flap 13. The outer frame 161 is a series of four cardboard flat bodies. The inner flap 14 extends from the end portion of the corrugated cardboard flat body and bends to overlap the upper surface portion 81 of the top cushioning material 8. The outer flap 13 extends from the other end of the corrugated cardboard flat body and bends to overlap the inner flap 14. The exterior corrugated cardboard cap 16 may be constituted by joining two corrugated cardboard sheets, for example, and a wire or an adhesive can be used for the joining. After the outer corrugated cardboard cap 16 is put on the top cushioning material 8, the inner flap 14 is first folded, and then the outer flap 13 is folded. In the present embodiment, as a preferred form, the inner flap 14 does not overlap with the convex portion 9 when it covers the top cushioning material 8. That is, the notch 15 is provided in the inner flap 14 in accordance with the shape of the convex part 9 of the top cushioning material 8, and the notch 15 avoids the convex part 9, thereby reducing the packing height of one cardboard. be able to.

  The packing operation will be described. First, a protruding portion (not shown) of the bottom cushioning material 5 is fitted into the hole of the exterior corrugated cardboard tray 6 and fixed to each other. A product 4 as a packaged body is placed on the bottom cushioning material 5 and a top cushioning material 8 is placed thereon. Finally, these are covered with an exterior corrugated cardboard cap 16 and tied with a band 3 to complete the packing with the packing material 1.

  As described above, according to the present embodiment, by providing the convex portion 9 on the top of the top cushioning material 8 that packs the product 4, a structurally weak part of the product 4 (also referred to as “weak part”). It is possible to suppress a large vertical load from being applied. That is, the packaging material 1 can solve the problems relating to protection of the weak part of the product 4. In the top cushioning material 8 divided into left and right parts, a convex portion 9 is provided on the top of the top cushioning material 8 in the vertical direction so as not to overlap with the product 4, thereby concentrating the vertical load on the top cushioning material 8. It is possible to reduce the load applied to the weak part. Since the load applied to the product 4 is reduced, the deformation of the product 4 is reduced, and even when the top cushioning material 8 is changed to an inexpensive material, storage and transportation are possible, and the cost of the top cushioning material 8 can be reduced. Moreover, according to the packaging material 1 concerning this Embodiment, since the convex part 9 should just be provided with respect to the existing shock absorbing material, it can respond by a simple shape change, and since an additional member is also unnecessary, an increase in a number of parts and work No additional process occurs. Further, in the packing material 1, the inner flap 14 of the exterior corrugated cardboard cap 16 has a shape that avoids the convex portion 9 of the top cushioning material 8. Thereby, the height dimension of the packing material 1 can be reduced, the packaging volume can be reduced, and the transportation cost can be reduced. As described above, according to the present embodiment, it is possible to provide a compact packaging material 1 that can protect the weak product portion and can protect the loading strength without an additional member, can be easily packed, and is compact.

DESCRIPTION OF SYMBOLS 1 Packing material, 3 bands, 4 products, 5 bottom cushioning material, 6 exterior cardboard tray, 8 top cushioning material, 9, 91, 92 convex part, 13 outer flap, 14 inner flap, 15 notch part, 16 exterior cardboard cap, 81 Upper surface portion, 82 Side wall portion, 161 Outer frame, 811 Front surface, 812 Back surface, 820 Recessed portion, 821, 822, 823 Wall portion

Claims (8)

The side wall portion has a side wall portion having a recess composed of three surfaces, and a first surface and a second surface opposite to the first surface, and the second surface covers one side of the recess. A cushioning material comprising: an upper surface portion connected to the first surface; and a convex portion provided immediately above the side wall portion in the first surface;
An exterior cap covering the cushioning material from the upper surface side;
Equipped with a,
The exterior cap is
An outer frame composed of four planar bodies,
An inner flap that extends from the end of the first planar body among the four planar bodies and is folded to overlap the upper surface of the cushioning material;
Outer flap that overlaps the inner flap by extending from the end of the second planar body among the four planar bodies and being folded;
Including
The inner flap does not overlap the convex part when folded and covered with the cushioning material,
The packaging material which the said outer flap covers the said convex part because the edge of the said outer flap overlaps on the said edge part of a said 1st plane body from the base of the said outer flap ahead .   The packing material according to claim 1, wherein the convex portion is provided at each corner of the upper surface portion.   The packing material according to claim 2, wherein the convex portion is symmetrical with respect to a center of the upper surface portion. The side wall portion forms a U-shaped outer shape together with the first and second wall portions by connecting the first and second wall portions facing each other and one end portion of the first and second wall portions. 3 walls, and
The convex portion includes a first convex portion provided immediately above the first wall portion, and a second convex portion provided directly above the second wall portion and having a planar shape that is line symmetric with the first convex portion. The packaging material according to claim 3, comprising:   The packaging material according to claim 1, wherein the convex portion extends along a corner of the upper surface portion.   The packaging material according to any one of claims 1 to 5, wherein a width of the convex portion is equal to or less than a thickness of the side wall portion immediately below the convex portion. The packaging material according to claim 1, wherein a height of the convex portion is equal to or greater than a thickness of the exterior cap . Prior Symbol buffer material, packaging material according to any one of claims 1 to 7, made of foamed synthetic resin.

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