JP4841258B2 - Packing box having cushioning material for packing box and cushioning material for packing box - Google Patents

Description

The present invention relates to a packaging box having a cushioning material and a cushioning material for packaging box which are arranged in the packaging box and can be used repeatedly.

  Conventionally, when an article is accommodated in a packaging box and transported, the cushioning material is accommodated and arranged in the packaging box in order to prevent the article from moving and to protect the article from an impact during transportation. Yes. Conventional cushioning materials are formed by embedding newspaper paper, corrugated cardboard, or polyurethane foam pieces between articles in the packaging box, or foamed polystyrene, corrugated cardboard, etc., so as to fill the gap between the inner surface of the packaging box and the article. There are things that are fixed in shape.

  However, there is an advantage that the shape of the article is stuffed with newspaper, corrugated cardboard, or polyurethane foam pieces between the items in the packaging box. It is often handled as garbage once used. In addition, when the gap is large in the packaging box in which the articles are stored, a large amount of newspaper, cardboard, polyurethane foam, etc., to be packed in the packaging box is required. In addition, when the product weight of the articles contained in the packaging box is large, in order to prevent the articles from moving in the packaging box, a larger amount of newspaper, cardboard, or polyurethane foam is placed in the gap in the packaging box. Since it is necessary to pack the cut pieces, there is a problem that the storage place is difficult to use again, and when it is made to be trash, the amount of the trash is increased and the processing cost is increased.

  On the other hand, in the case of polystyrene foam, corrugated cardboard, etc. that are shaped and fixed in irregularities, it can not be used for articles with different shapes, not only lacks versatility, but also can be used again Since the shape is fixed and cannot be made compact, there is a problem of taking a storage space, and there is a problem that processing costs increase when it is made garbage.

JP-A-11-227763 JP-A-5-51067

The present invention has been made in view of the above points, and can be used repeatedly, and does not take a storage place for reuse or the like, and can be easily placed in a packing box. Provided is a packing box having a packing box cushioning material and a packing box cushioning material capable of reliably fixing an article in the packing box .

The invention of claim 1 is for a packaging box that is inserted and arranged in a rectangular packaging box in plan view , and presses the article against the upper part of the article in the packaging box to fix the position of the article and protect it from impacts. A cushioning material, wherein a dimension between a pair of opposing sides is smaller than a dimension between at least a pair of side wall inner surfaces in the opening of the packaging box and has rigidity, and is laminated on one side of the base material The cushioning material is formed of a flexible cushioning material, and the cushioning material has a dimension between at least one pair of opposing sides larger than the dimension of the opening of the packing box, and is outward from the periphery of the base material. The protruding portion is a bendable portion, and the thickness of the bendable portion is larger than the gap between the peripheral edge of the base material and the side wall inner surface of the packing box, and the protruding portion of the cushioning material is: Can be inserted inside the side wall of the packaging box while bent toward the opening of the packaging box. Ri, and according to the packaging box for cushioning material, which is a removable from the packaging box by pulling the opening direction of the packaging box by gripping the projecting portion.

  According to a second aspect of the present invention, in the first aspect, the dimension between at least one pair of opposing portions of the outer periphery of the cushioning material is made larger than the dimension of the opening of the packing box corresponding to the portion. The at least one pair of opposing portions of the outer periphery protrude outward from the periphery of the base material, and the protruding portion is the bendable portion.

A third aspect of the present invention, in claim 1 or 2, wherein the substrate is characterized by comprising a polyolefin resin foam.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the cushioning material is made of polyurethane foam .

The invention of claim 5 is a packing box having a packing box cushioning material, wherein the packing box cushioning material according to any one of claims 1 to 4 is inserted and arranged in the packing box. Related.

  When the packing box cushioning material of the present invention (also referred to as a packing box cushioning member) is placed in a packaging box in which an article is stored, the cushioning material is placed below the base material and the opening of the packaging box is placed. It is pushed into the packaging box from the part and finally comes into contact with the upper part of the article to press the article. When the packing box cushioning material is pushed into the packing box, the bendable part protruding outward from the periphery of the base material is in contact with the inner surface of the side wall of the packing box and between the base material and the inner surface of the side wall of the packing box. The packing box cushioning material is fixed in the packing box by the frictional resistance between the bent portion and the inner surface of the side wall of the packing box. The article in the packaging box is fixed in position in the packaging box by being pressed by the cushioning material of the packaging box cushioning material. In addition, since the articles in the packaging box are pressed against the cushioning material made of a flexible material, when the cushioning material for the packaging box is pushed into the packaging box, the article is damaged by pressing with the cushioning material for the packaging box. There is nothing. In addition, the packing box cushioning material is composed of a laminate of a base material and a cushioning material, and is pushed into the packaging box until it abuts on an article in the packaging box, so that the position in the packaging box is fixed. Even if there are many gaps between articles, the amount of use of the cushioning material for the packing box does not increase, and it is economical and the number of storage locations until reuse can be reduced. On the other hand, when taking out the packing material for the packing box from the packing box, it is easy for the operator to grip the tip of the bendable part that protrudes outward from the periphery of the base material and bends upward and pulls it upward. Can be done.

  Furthermore, the thickness of the bendable portion of the cushioning material protruding from the periphery of the base material is set to be larger than the gap between the peripheral edge of the base material and the side wall inner surface of the packaging box, so that the cushioning material for the packaging box becomes a packaging box. When being pushed in, the bendable portion of the cushioning material is compressed between the edge of the base material and the inner surface of the side wall of the packaging box and closely contacts the inner surface of the side wall of the packaging box, and the frictional resistance with the inner surface of the side wall of the packaging box is Therefore, the cushioning material for the packing box is more securely fixed in the packing box.

  Embodiments of the present invention will be described below. FIG. 1 is a perspective view of a cushioning material for a packaging box and a packaging box according to a first embodiment of the present invention, FIG. 2 is a sectional view of the first embodiment, and FIG. 3 is for a small-sized packaging box according to the first embodiment. 4 is a front view of the cushioning material, FIG. 4 is a rear view of the cushioning material for a small packaging box in the first embodiment, and FIG. 5 is a right side view of the cushioning material for a small packaging box in the first embodiment. 6 is a left side view of the cushioning material for a small packaging box in the first embodiment, FIG. 7 is a plan view of the cushioning material for a small packaging box in the first embodiment, and FIG. 8 is the first embodiment. 9 is a bottom view of the cushioning material for a small packaging box in FIG. 9, FIG. 9 is a front view of the cushioning material for a large packaging box in the first embodiment, and FIG. 10 is a cushion for a large packaging box in the first embodiment. Rear view of the material, FIG. 11 is a right side view of the large-sized packing box cushioning material in the first embodiment, 12 is a left side view of the cushioning material for a large packaging box in the first embodiment, FIG. 13 is a plan view of the cushioning material for a large packaging box in the first embodiment, and FIG. 14 is the first embodiment. FIG. 15 is an enlarged sectional view showing another example of the cushioning material in the first embodiment. FIG. 16 is a diagram showing an arrangement in the packaging box in the first embodiment, and FIG. 17 is a diagram showing an arrangement on the packaging box in the first embodiment. 18 is a perspective view of a cushioning material for a packaging box according to a second embodiment of the present invention, FIG. 19 is a diagram showing a first arrangement in the packaging box according to the second embodiment, and FIG. 20 is a diagram illustrating the second embodiment. FIG. 21 is a cross-sectional view of a cushioning material for a packaging box according to a third embodiment of the present invention, and FIG. 22 is a cushioning material for a packaging box according to a fourth embodiment of the present invention. FIG. 23 is a perspective view of a cushioning material for a packaging box according to a fifth embodiment of the present invention, and FIG. 24 is a perspective view of the cushioning material for a packaging box according to a sixth embodiment of the present invention.

  The cushioning material 10A for the packaging box of the first embodiment shown in FIGS. 1 and 2 is arranged in the packaging box 71 made of cardboard, plastic, or the like as shown in 16-B of FIG. The position of the article P is fixed and protected from impact, and includes a base material 11 and a buffer material 21 laminated on one surface of the base material 11. The base material 11 and the buffer material 21 are integrated by adhesion, welding, or the like.

  The packing box 71 may not be a returnable box, but if it is a returnable box, the packing box cushioning material 10A of the present invention can be returned to the shipping destination together with the packing box 71, and the packing box cushioning material 10A Convenient for repeated use. The packing box 71 in the illustrated example is a well-known collapsible returnable box made of polypropylene. Moreover, the shape of the packaging box 71 is not specifically limited, In the example of illustration, it consists of a substantially rectangular parallelepiped, and the opening part 77 consists of a substantially rectangle. Further, the size of the packing box 71 is not particularly limited. As an example, the opening 77 has a rectangular shape, a width inside dimension W is 378 mm, a depth inside dimension D is 264 mm, and a height inside dimension H (shown by 16-A in FIG. 16) is 222 mm. And a large size (volume 50 L) with W of 493 mm, D of 336 mm, and H of 312 mm.

  The base material 11 is smaller than the shape of the opening 77 of the packing box 71 and has a plate shape having rigidity. The extent that the base material 11 is made smaller than the shape of the opening 77 of the packaging box 71 may be such that the base material 11 can be inserted into the opening 77 of the packaging box 71. That is, a dimension between a pair of opposing sides in the substrate 11, for example, a dimension e 1 between the side 12 and the side 13 is a dimension between corresponding side wall inner surfaces of the packaging box 71, for example, between the inner surfaces of the side walls 72 and 73. Even if the dimension e2 between the other sides 14 and 15 of the substrate 11 is the same as the dimension D between the inner surfaces of the corresponding side walls 74 and 75 of the packing box 71, the dimension e2 is smaller than the dimension W by a predetermined amount. Good. In the illustrated base material 11, the entire circumference of the base material 11 is 10 mm smaller than the shape of the opening 77, and has a rectangular flat plate shape similar to the planar shape of the opening 77. That is, when the cushioning material 10A for packing box is used for the small-sized packing box (W378 × D264 × H222 mm), the planar dimensions of the base material 11 are 358 × 244 mm and the thickness is 15 mm, When the packing box cushioning material 10A is used in the large packaging box (W493 × D336 × H312 mm), the planar dimensions of the base material 11 are 473 × 316 mm and the thickness is 15 mm. The thickness of the base material 11 varies depending on the weight and size of an article accommodated in the packing box 71 and pressed and fixed by the packing box cushioning material 10A, the size of the packing box 71, etc. At least 5 mm or more is necessary. The function of pressing and fixing the article with the packing box cushioning material 10A increases as the thickness of the base material 11 increases. However, when the thickness of the base material 11 is increased, the bulk of the packing box cushioning material 10A increases. Since the weight increases, the thickness of the substrate 11 is particularly preferably about 10 mm to 30 mm.

  The substrate 11 has only to be rigid so that it cannot be bent easily by hand. Specifically, the substrate 11 preferably has a 25% compression hardness (JIS K 6767) of 0.025 MPa or more. Moreover, the material which comprises the said base material 11 considers that the said cushioning material 10A for packaging boxes is arrange | positioned and conveyed in the packaging box 71, and a thing provided with moderate rigidity and thickness is preferable. Examples include resin foams, honeycomb-shaped resin molded products, blow molded hollow structures, foamed polystyrene, corrugated cardboard, and constructions made of paper. Among them, moderate rigidity and light weight And a polyolefin resin foam (for example, polyethylene) having both weather resistance. Moreover, in order to improve the weather resistance and durability of these materials, different materials such as films and nonwoven fabrics can be laminated on the surface of the base material 11 to impart functions such as strength and waterproofness. It is also possible to provide a material more suitable for protecting the object to be packed by imparting conductivity and antibacterial properties to the substrate 11.

  The buffer material 21 is made of a flexible material, and at least a part of the outer periphery thereof is made larger than the size of the opening 77 of the packing box 71 and protrudes outward from the peripheral edge of the base material 11, Is a bendable portion 27. More specifically, the cushioning material 21 has a size between at least one pair of opposed portions on the outer periphery that is larger than the size of the opening 77 of the packing box 71 corresponding to the portion, In addition, at least one pair of opposing portions is a bendable portion 27 that protrudes outward from the periphery of the base material 11 and can be bent. In the present invention, “at least one set of opposing portions on the outer periphery” means at least one set of opposing sides on the outer periphery, or at least one set of opposing corners on the outer periphery. The cushioning material 21 in the illustrated example has a rectangular plate shape that is substantially similar to the shape of the opening 77 of the base material 11 and the packing box 71, and is a dimension between two pairs of opposing sides, that is, a side 22 in the cushioning material 21. The dimension f1 between the side 23 and the dimension f2 between the side 24 and the side 25 is a corresponding dimension in the opening 77 of the packing box 71, that is, W for f1 and D for f2. By making the predetermined amount larger, the entire circumference of the cushioning material 21 is made larger than the opening 77 of the packing box 71, and the bendable portion 27 protrudes outward on the entire circumference of the base material 11. In addition, in order to improve the weather resistance and durability of the buffer material 21, different materials such as films and nonwoven fabrics are laminated on the surface of the flexible material, or surface treatment (for example, conductive impregnation treatment) is performed on the flexible material. Or waterproof treatment), functions such as strength and waterproofing can be imparted. It is also possible to provide a material more suitable for protecting the object to be packed by imparting conductivity and antibacterial properties to the material.

  Further, the bendable portion 27 of the cushioning material 21 is formed of the base material 11 when the packaging box cushioning material 10A is disposed in the opening 77 of the packaging box 71 as shown in 16-B of FIG. It is preferable that the thickness be larger than the gap r between the peripheral edge of the packing box 71 and the side wall inner surface of the packing box 71. When the thickness of the bendable portion 27 is set in this way, the bending material 10A is pushed into the packing box 71 and disposed as shown in 16-B of FIG. The possible portion 27 is compressed between the peripheral edge of the base material 11 and the inner surface of the side wall of the packaging box 71, so that the possible portion 27 is firmly attached to the inner surface of the side wall of the packaging box 71, and the frictional resistance between the inner surface of the side wall of the packaging box 71 and the bendable portion 27 is reduced. Therefore, the position of the cushioning material 10A for packing box can be reliably fixed in the packing box 21. Further, the bendable portion 27 is configured such that when the packing box cushioning material 10 </ b> A is pushed into the opening 77 of the packing box 71 and disposed in the packing box 71, the base material 11 and the side wall of the packing box 71. The amount of the bendable portion 27 protruding outward from the peripheral edge of the base 11 so that the tip 28 of the bendable portion 27 protrudes upward from the base 11 by bending upward between the inner surfaces (see FIG. 16). It is preferable that k) shown in 16-A is larger than the gap r. If comprised in this way, when removing 10 A of said buffer materials for packing boxes from the packing box 71, the front-end | tip 28 of the bendable part 27 which protrudes upwards from the periphery of the said base material 11 will be hold | gripped and pulled upwards. Thus, the packing box cushioning material 10 </ b> A can be easily detached from the packing box 71.

  As a specific example of the dimensions of the cushioning material 21, when the cushioning material 10A for packaging box is used for the small-sized packaging box (W378 × D264 × H222mm), the plane dimension is 428mm × 314mm, and the thickness (bent When the packing box cushioning material 10A is used for the large-sized packing box (W493 × D336 × H312 mm), the plane dimension is 543 × 386 mm, The thickness (total thickness including the bendable portion 27) is 15 mm. In any case, the bendable portion 27 protrudes 35 mm outward from the outer periphery of the substrate 11 and is 50 mm larger than the shape of the opening 77. An example with the dimensions is shown.

FIGS. 3 to 8 show six views when the packing box cushioning material 10A is the small size, and FIGS. 9 to 14 show six views when the packing box cushioning material 10A is the large size. The figure is shown.

  The flexible material constituting the cushioning material 21 is not particularly limited as long as it is a flexible material. For example, a material having a thickness and a cushioning property such as a resin foam (rubber sponge, polyurethane foam, etc.) or felt that is more flexible than the substrate 11 is preferable. Among them, the frictional resistance between the inner wall surface of the packing box 71 and the bendable portion 27 when the bendable portion 27 is compressed between the inner wall surface of the packing box 71 and the base material 11 is large, and A polyurethane foam that is excellent in the function of pressing and fixing the article P in the packaging box 71 and that is excellent in repeated use is excellent in distortion characteristics and recovery rate. Further, in the cushioning material 21, the surface 26 opposite to the base material 11 is not limited to a flat surface, and as shown in FIG. May be. The buffer material 21 and the base material 11 are not limited to being integrated by adhesion or welding, but may be integrated by clips or the like.

  A method of using the packing box cushioning material 10A will be described. As shown to 16-A and 16-B of FIG. 16, after accommodating the goods P in the said packaging box 71, the said cushioning material 21 becomes the lower side of the base material 11 for the said cushioning material 10A for packaging boxes. In this way, it is pushed into the opening 77 from above the packaging box 71. At that time, the bendable portion 27 protruding outward from the peripheral edge of the base material 11 is in contact with the inner surface of the side wall of the packing box 71 and is upward between the peripheral edge of the base material 11 and the inner surface of the side wall of the packing box 71. The packing box cushioning material 10 </ b> A is fixed in the packing box 71 by frictional resistance between the bendable portion 27 and the inner surface of the side wall of the packing box 71. Further, the position of the article P in the packaging box 71 is fixed by being pressed by the cushioning material 21 of the packaging box cushioning material 10A. In addition, the article P in the packaging box 71 is protected by the cushioning material 21 by contacting the cushioning material 21 made of the flexible material when the cushioning material 10A for packaging box is pushed into the packaging box 71. Therefore, there is no possibility of breakage even if the packing box cushioning material 10A is strongly pressed. On the other hand, in order to take out the packing box cushioning material 10A from the packing box 71, an operator grasps the distal end portion 28 of the bendable portion 27 protruding outward from the periphery of the base material 11 and bending upward. The packing box cushioning material 10A can be easily taken out by pulling upward with Reference numeral 81 denotes a cushion material disposed on the bottom surface of the packing box 71.

  In addition, when the packing box cushioning material 10A is returned together with the packing box 71 or stored together with the packing box 71, it is arranged on the upper surface of the folded packing box 71 as shown in FIG. It can also be used as a cushioning material for the packing box 71 by being arranged between the packing boxes 71 folded or folded. Further, since the packing box cushioning material 10A is substantially formed in a flat plate shape, if a plurality of the cushioning materials 10A are stacked and stored, a storage place is not required.

  FIG. 18 shows a packing box cushioning material 10B of the second embodiment. In the following description of the second embodiment, the same components as those in the packing box cushioning material 10A of the first embodiment will be denoted by the same reference numerals, and detailed description thereof will be omitted. Only explained. The packaging box cushioning material 10B of the second embodiment is suitable for housing articles P and P1 in a plurality of stages as shown in 20-B of FIG. 20, and as shown in FIG. A plate-like buffer protection material 31 made of a flexible material is laminated and integrated on the surface of the base material 11 opposite to the buffer material 21 by adhesion, welding, or the like. The flexible material constituting the buffer protection material 31 is not particularly limited as long as it is a flexible material. For example, a material having a thickness and a cushioning property such as a resin foam (rubber sponge, polyurethane foam, etc.) or felt that is more flexible than the substrate 11 is preferable. In particular, a polyurethane foam excellent in durability against repeated use is suitable. The buffer protection material 31 has the same size as the base material 11 or a size smaller by a predetermined amount. In the illustrated example, the planar dimension is 10 mm smaller than the periphery of the base material 11 and the thickness is 10 mm. Yes. In addition, you may improve the said buffer property by making the surface 32 on the opposite side to the said base material 11 in the said buffer protective material 31 into the uneven | corrugated surface by profile processing etc. FIG.

  The usage method in the cushioning material 10B for packing boxes of 2nd Embodiment is demonstrated. First, as shown in 19-A and 19-B of FIG. 19, after the article P is accommodated in the packing box 71, the cushioning material 21 is placed on the lower side of the base material 11, and the cushioning protection is performed. The packing box cushioning material 10 </ b> B is pushed into the opening 77 from above the packing box 71 with the material 31 facing upward. At that time, the bendable portion 27 protruding outward from the periphery of the base material 11 is in contact with the inner surface of the side wall of the packing box 72 and bent upward between the base material 11 and the inner surface of the side wall of the packing box 71, The packing box cushioning material 10 </ b> B is fixed in the packing box 71 by frictional resistance between the bendable portion 27 and the inner wall of the packing box 71. The article P in the packaging box 71 is fixed in position by being pressed by the cushioning material 21 of the packaging box cushioning material 10B. In addition, since the article P in the packaging box 71 is protected by abutting against the cushioning material 21 made of the flexible material, when the packaging box cushioning material 10B is pushed into the packaging box 71, the packaging box 71 Even if it is strongly pressed by the buffer material 10B, there is no possibility of breakage.

  Next, another article P1 is placed on the upper surface of the packing box cushioning material 10B fixed in position in the packing box 71, that is, on the upper surface of the cushioning protection material 31, as shown in 20-A of FIG. Put. Thereafter, as shown in 20-B of FIG. 20, another cushioning material 10B1 for the packaging box of the second embodiment is arranged so that the cushioning material 21 is on the lower side of the base material 11, and the cushioning protection material 31 is used. Is pushed into the opening 77 from above the packing box 71 so that is on the upper side. At that time, the bendable portion 27 protruding outward from the peripheral edge of the base material 11 comes into contact with the inner surface of the side wall of the packaging box 72 and bends upward between the base material 11 and the inner surface of the side wall of the packaging box 71, The packing box cushioning material 10 </ b> B <b> 1 is fixed in the packing box 71 by the frictional resistance between the bendable portion 27 and the inner wall of the packing box 71. Thereby, the upper article P1 in the packaging box 71 is sandwiched and fixed between the cushioning protection material 31 in the packaging box cushioning material 10B and the cushioning material 21 in the packaging box cushioning material 10B1, and is protected from impact. .

  On the other hand, in order to take out the packing box cushioning materials 10B1 and 10B of the second embodiment from the packing box 71, the packing box cushioning materials 10B1 and 10B protrude upward from the periphery of the base material 11 and move upward. When the operator grips and pulls the front end portion 28 of the bendable portion 27 bent upward, the packing box cushioning materials 10B1 and 10B can be easily taken out. In addition, about the buffer material 10B for packing boxes of the said 2nd Embodiment, although the example of illustration showed the case where an article | item is accommodated in the packaging box 71 in two steps, depending on the height of the said packing box 71 and the size of an article | item. Can also be used when an article is accommodated in three or more stages.

  FIG. 21 shows a cushioning material 10C for a packaging box according to the third embodiment. In the packing box cushioning material 10C of the third embodiment, a plate-shaped cushioning protection material 31 made of a flexible material is bonded or welded to the surface of the base 11 opposite to the cushioning material 21. Further, another buffer protection material 33 made of a flexible material is laminated and integrated on the surface of the buffer material 21 opposite to the base material 11 by adhesion, welding, or the like. The cushioning protection material 31 is the same as that of the packaging box cushioning material 10B of the second embodiment. Further, the other buffer protection material 33 is not particularly limited as long as it has flexibility, but in particular, a resin foam (such as rubber sponge or polyurethane foam) that is softer than the buffer material 21 or the like. Those having a thickness and cushioning properties such as felt are preferred. In particular, a polyurethane foam excellent in durability against repeated use is suitable. The buffer protection member 33 has the same size as the base material 11 or a size smaller by a predetermined amount. In the illustrated example, the buffer protection material 33 has the same planar size as the base material 11.

  The packing box cushioning material 10C of the third embodiment is disposed between the stages when the articles are accommodated in the packing box 71 in multiple stages, like the packing box cushioning material 10B of the second embodiment. It is suitable for use, and can be used to safely hold and fix an exceptional article in the packaging box 71. It is to be noted that at least one of the surface 32 opposite to the base material 11 in the buffer protection material 31 and the surface 34 opposite to the buffer material 21 in the buffer protection material 33 is an uneven surface by profile processing or the like. The buffering property may be improved.

  In the cushioning material 10D for the packaging box of the fourth embodiment shown in FIG. 22, the dimension between the pair of sides 22 and 23 facing each other in the cushioning material 21 is the dimension between the side wall inner surfaces in the opening 77 of the packaging box 71. It was made larger.

  The packing box 71 in which the packing box cushioning material of the present invention is used is not limited to the opening 77 having a substantially rectangular shape in plan view, and may be, for example, a polygon or a circle. The shape of the base material 11, the buffer material 21, the buffer protection materials 31, 33, etc. is set in accordance with the shape of 77. The cushioning material 10E for a packaging box according to the fifth embodiment shown in FIG. 23 is suitable for a packaging box in which the opening 77 has a polygonal shape. On the other hand, the packing box cushioning material 10F of the sixth embodiment shown in FIG. 24 is suitable for a packing box in which the shape of the opening 77 is circular.

  Further, the packing box cushioning materials 10B to 10F of the second to sixth embodiments are also used for the packing box of the first embodiment when returned together with the packing box or stored together with the packing box. As described in the cushioning material 10A, it can be used as a cushioning material for the packaging box by being arranged on the upper surface of the folded packaging box or between the packaging boxes. Furthermore, the packing box cushioning materials 10B to 10F according to the second to sixth embodiments also have a substantially flat plate shape. Therefore, if a plurality of the cushioning materials 10B to 10F are stacked and stored, a storage place is not required.

  Further, in each of the above embodiments, the case where the distance between at least one pair of opposite sides of the cushioning material is made larger than the size of the corresponding portion in the opening of the packaging box is shown. May be such that only at least one pair of opposing corners (corner portions) of the cushioning material is larger than the size of the corresponding portion (between the corners) in the opening of the packaging box. Furthermore, the base material 11 is not limited to a flat plate shape, for example, one whose peripheral edge is curved upward or downward, one whose central part or other part is curved, one whose whole is curved, or other curved shape It may be a thing etc.

It is a perspective view of the shock absorbing material for packing boxes used for 1st Embodiment of this invention, and a packing box. It is sectional drawing of the shock absorbing material for packing boxes of the 1st embodiment. It is a front view of the cushioning material for small size packaging boxes in the first embodiment. It is a rear view of the cushioning material for small packaging boxes in the first embodiment. It is a right view of the cushioning material for small size packaging boxes in the first embodiment. It is a left view of the cushioning material for small size packaging boxes in the first embodiment. It is a top view of the cushioning material for small size packaging boxes in the first embodiment. It is a bottom view of the cushioning material for small size packaging boxes in the first embodiment. It is a front view of the cushioning material for large-sized packing boxes in the first embodiment. It is a rear view of the buffer material for large sized packing boxes in the first embodiment. It is a right view of the cushioning material for large sized packing boxes in the first embodiment. It is a left view of the cushioning material for large size packaging boxes in the first embodiment. It is a top view of the buffer material for large sized packing boxes in the 1st embodiment. It is a bottom view of the cushioning material for large packaging boxes in the first embodiment. It is a partial expanded sectional view which shows the other example of a buffer material in the same 1st Embodiment. It is a figure which shows arrangement | positioning in a packing box in the 1st Embodiment. It is a figure which shows arrangement | positioning on the packing box folded in the same 1st Embodiment. It is a perspective view of the shock absorbing material for packing boxes of 2nd Embodiment in this invention. It is a figure which shows the 1st arrangement | positioning in a packing box in the 2nd Embodiment. It is a figure which shows the 2nd arrangement | positioning in a packing box in the 2nd Embodiment. It is sectional drawing of the shock absorbing material for packing boxes of 3rd Embodiment in this invention. It is a perspective view of the shock absorbing material for packing boxes of 4th Embodiment in this invention, and a packing box. It is a perspective view of the shock absorbing material for packing boxes of 5th Embodiment in this invention. It is a perspective view of the shock absorbing material for packing boxes of 6th Embodiment in this invention.

Explanation of symbols

10A, 10B, 10C, 10D, 10E, 10F Buffer material for packing box of first to sixth embodiments 11 Base material 21 Buffer material 22, 23 A pair of opposing sides 24, 25 in the buffer material One set of opposing sides 27 Bendable portions 31, 33 projecting outward from the periphery of the base material in the cushioning material 31, Buffer protection material 71 Packing box 77 Opening portion of the packaging box f1 Dimension between 23 f2 Dimension between another pair of opposing sides 24 and 25 in the cushioning material P1, P2 Article W Dimension of the opening of the packaging box corresponding to between the pair of opposing sides 22 and 23 in the cushioning material D Dimensions of the opening of the packaging box corresponding to the space between the other pair of opposing sides 24 and 25 in the cushioning material

Claims (5)

A cushioning material for a packing box that is inserted and arranged in a rectangular packaging box in plan view, presses the article against the upper part of the article in the packaging box to protect the position of the article and protection from impact,
A substrate having a dimension between a pair of opposing sides smaller than a dimension between at least a pair of side wall inner surfaces in the opening of the packaging box and having rigidity; and
It consists of a flexible cushioning material laminated on one side of the substrate,
The cushioning material has a dimension between at least one pair of opposing sides larger than the dimension of the opening of the packaging box and projects outward from the periphery of the base material, and the projecting part is a bendable part. It is,
The thickness of the bendable portion is larger than the gap between the peripheral edge of the base material and the side wall inner surface of the packaging box,
The protruding portion of the cushioning material can be inserted inside the side wall of the packing box in a state bent toward the opening of the packing box, and the packing box is gripped and pulled toward the opening of the packing box. Packing box cushioning material, characterized in that it can be taken out from the packaging box.   The cushioning material has a dimension between at least one pair of opposed parts on the outer periphery larger than a dimension of the opening of the packing box corresponding to the part, and at least one pair of opposed parts on the outer periphery. The packaging box cushioning material according to claim 1, wherein the projection protrudes outward from a peripheral edge of the base material, and the protruding portion is the bendable portion. The packing material according to claim 1 or 2, wherein the base material is made of a polyolefin resin foam. The said cushioning material consists of polyurethane foam, The cushioning material for packaging boxes as described in any one of Claim 1 to 3 characterized by the above-mentioned. A packing box having a packing box cushioning material, wherein the packing box cushioning material according to any one of claims 1 to 4 is inserted and arranged in the packing box.

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