JP2010036925A - Packaging cushioning material and package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To adjust a bending flexibility of a packaging cushioning material A of an angular tubular shape that is formed from a top plate 1, right and left side plates 2 and 3 and a bottom plate 4, and that is bent so as to intersect at least part of each of the side plates 2 and 3 in the height direction, so as to be vertically flexibly bent on account of the elasticity of folds 5a to 5f, and so as to have an inward V shape in a vertical cross section. <P>SOLUTION: A sub-flexible section 106 the vertical cross-section of which includes an outward V-shape is defined by reversely bending a cushioning material along each two cuts 103 vertically intersecting a fold extending through the apex of the inward V shape of the vertical cross-section and along folds 105 formed between the upper ends and lower ends of the two cuts 103 on the same side. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  In the present invention, for example, when an object to be packaged is accommodated in a box such as a cardboard box, it is loaded in the box together with the object to be packaged so that the object to be packaged does not rattle in the box, and an impact caused by dropping or the like. The present invention relates to a cushioning material for packaging that protects an object to be packaged by absorbing water and a package using the same.

  Conventionally, it has a cylindrical shape including a top plate, left and right side plates, and a bottom plate, and is bent into a V-shape inward in a longitudinal section across at least a part of the height direction of both side plates. A cushioning material made of corrugated paper that can be bent and expanded vertically by elasticity and a packaging body using the same are known (for example, see Patent Document 1).

Japanese Patent No. 3574378

  In the case of the above conventional cushioning material for packaging, a high cushioning effect utilizing the elastic bending and stretching of both side plates can be obtained, and there is an advantage that the effect of protecting the article to be packaged in a package using the cushioning material is high.

  However, since the side plate is bent and stretched with a constant force, it is difficult to divert to a package in which a load different from the originally planned load is applied, and one type of packaging cushioning material can be applied. The range is narrow. For this reason, as the number of types of encapsulation increases, the number of types of cushioning materials to be prepared by adjusting the vertical elasticity (flexibility) in the vertical direction of the side plate increases accordingly, and management during manufacturing and packaging operations There is a problem that it takes time and handling.

  The present invention has been made in view of such conventional problems, and has a rectangular tube shape including a top plate, left and right side plates, and a bottom plate, and at least one of the side plates in the height direction. A packaging cushioning material having a high versatility, which can adjust the bending / stretching property of the packaging cushioning material bent in a vertical cross-section inwardly V-shape that can be bent and stretched up and down by the elasticity of the fold, It aims at providing the package using this.

  For the above purpose, the first of the present invention is a rectangular tube shape including a top plate, left and right side plates, and a bottom plate, crossing at least part of the height direction of both side plates, A main stretchable part bent in a vertical cross-section inwardly V-shape that can be bent up and down by the elasticity of the fold is formed, and intersects with a fold at the apex of the V-shape inward in the vertical cross-section of the main stretchable part. The two cuts and the folds formed between the ends of the two cuts on the same upper and lower sides define a sub-extension / contraction part whose bending length in the vertical direction is shorter than that of the main extension / contraction part. The packaging cushioning material is characterized in that the sub-extension / contraction portion can be bent outwardly into a V-shaped longitudinal section that can be bent and extended vertically by elasticity of a fold.

  In the first aspect of the present invention, the sub-extension / contraction part is divided into a plurality of each side surface plate, and the vertical extension / contraction length of the sub-extension / contraction part is the vertical bending length of the main extension / contraction part. The end plate is bent downward from both ends of the upper surface plate, and the lower edge central portion of the end surface plate is connected to the lower surface plate, corrugated paper A preferred embodiment is that the crease for forming the main stretchable part and the crease for defining the adjustment part are formed in a direction crossing the corrugation of the corrugated core material of the corrugated paper. Is included.

  The second aspect of the present invention is a packaging body in which an article to be packaged is housed in a box. The packaging cushioning material according to the first aspect of the present invention is configured such that a part or all of the sub-extension / contraction part is inverted and bent outward. In such a state, the upper plate or the lower plate is disposed between the package and the box with the upper plate or the lower plate facing the package to be either or both of the lower and upper sides of the package. A package having the characteristics is provided.

  The second aspect of the present invention includes, as a preferable aspect thereof, the use of the cushioning material for packaging in which the sub-extension / contraction part is not inverted and bent outward.

  When a V-shaped bent piece with a vertical cross-section is bent up and down vertically, if the distance between the intersection point in the V-shape, which is the action point, and both ends of the V-shape, which is the power point, is increased, the bending-stretch resistance is reduced. If this interval is shortened, the flexural expansion / contraction force increases.

  On the other hand, the sub-extension / contraction portion in the cushioning material for packaging of the present invention has a vertical bending length (length along the vertical bending) shorter than that of the main expansion / contraction portion. When an outward V-shape is formed (a V-shape with an intersection point facing outward in the longitudinal section), the V-shape is smaller than the main stretchable portion. In a state where the sub-extension / retraction part is not inverted and bent outward, the sub-extension / contraction part bends / extends as a part of the main extension / contraction part that forms an inward V-shaped longitudinal section (a V-shape with the intersection point facing inward in the longitudinal section). When inverted and bent, the V-shape is smaller than that of the main expansion / contraction portion as described above, and therefore the distance between the intersection point in the V-shape serving as the action point and both ends of the V-shape serving as the power point is shortened. That is, the secondary expansion / contraction part in the cushioning material for packaging according to the present invention can be bent outwardly to increase the bending resistance of the side plate. For this reason, since the cushioning material for packaging of the present invention can adjust the bending elasticity of the side plate by reversing and bending the auxiliary elastic part outward, it can cope with various loads, The cushioning material for packaging can be widely applied to various packaging.

  Moreover, the packaging body of the present invention can adjust the bending elasticity of the side plate as described above, so that the packaging cushioning material to be used depends on the weight of the package and the position to which the packaging cushioning material is addressed. By adjusting the bending elasticity of the side plate, it is possible to protect the object to be packaged by the optimum supporting force and buffering action.

  Hereinafter, the present invention will be further described with reference to the drawings. In the drawings described below, the same reference numerals denote the same components.

  First, based on FIGS. 1-4, the 1st example of the cushioning material for packaging which concerns on this invention is demonstrated.

  1 is a perspective view from the top surface showing a first example of the packaging cushioning material of the present invention, FIG. 2 is a perspective view from the bottom surface showing a first example of the packaging cushioning material of the present invention, FIG. FIG. 4 is a development view showing a first example of the packaging cushioning material of the present invention, and FIG. 4 is a perspective view from the upper surface direction in a state where the secondary expansion / contraction portion in the first example of the packaging cushioning material of the present invention is inverted and bent outward. FIG.

  As shown in FIG. 1 to FIG. 3, the cushioning material A for packaging of this example is composed of a top plate 1, left and right side plates 2, 3, a wide bottom plate 4 a and a narrow bottom plate 4 b. The bottom plate 4 is formed into a cylindrical shape. Specifically, the side plates 2 and 3 are connected to the left and right sides of the top plate 1 via folds 5a and 5b, and the bottom plates are wide at the ends of the side plates 2 and 3 via the folds 5c and 5d. 4a and a narrow bottom plate 4b are connected.

  The top plate 1, the side plates 2 and 3, and the bottom plates 4a and 4b are formed by folding the side plates 2 and 3 below the top plate 1 through the folds 5a and 5b, and further through the folds 5c and 5d. , 4b are bent in a direction overlapping each other to form a square tube as a whole. One of the bottom plates 4a and 4b is wide and the other is narrow, and the bottom plate 4b is overlapped so that the narrow bottom plate 4b is outside the wide bottom plate 4a. The insertion pieces 6 and 7 provided on the face plate 4b are connected to each other by inserting them into the insertion slits 8 and 9 provided on the wide bottom face plate 4a to form a series of bottom face plates 4.

  Folds 5e and 5f that cross the side plates 2 and 3 are provided at the center in the height direction of the side plates 2 and 3, respectively, and the side plates 2 and 3 are interposed via the folds 5e and 5f. It is bent so as to have an inward V-shaped longitudinal section. The side plates 2 and 3 bent in the vertical cross-section inwardly V-shape are entirely moved up and down by the bending elasticity of the folds 5a to 5d at both ends and the folds 5e and 5f at the apexes in the vertical cross-section inward V-shape. It can be bent and stretched, and the whole constitutes the main stretchable parts 101 and 102.

  The main stretchable portions 101 and 102 have notches 103 and 104 vertically intersecting with the folds 5c and 5f of the apex of the inward V-shaped longitudinal section which is the cross-sectional shape of the main stretchable portions 101 and 102, respectively. A plurality of (six in this example) are formed.

  As shown in FIG. 1 to FIG. 3, among the cuts 103 formed in one side plate 2, folds 105 are respectively provided at every other place in the horizontal direction between the ends of the adjacent cuts 103 on the same side. Are formed, and two sub-extension / contraction portions 106 are defined by two adjacent cuts 103 and upper and lower folds 105. As shown in FIG. 3, the other side plate 3 similarly has three sub-extension / retraction portions 108 defined by two adjacent cuts 104 and upper and lower folds 107.

  Each of the sub stretchable portions 106 and 108 has a shorter bending length in the vertical direction than the main stretchable portions 101 and 102. The bending length in the vertical direction of the sub stretchable portions 106 and 108 is determined based on the ease of reverse bending to the outside and the ease of adjusting the flexural stretchability of the side plates 2 and 3. , 102 is preferably 1/3 to 2/3 of the vertical bending length.

  The sub stretchable portions 106 and 108 are inverted and bent outward through the folds 5c and 5f and the folds 105 and 107 by being pushed out from the inside, and projecting in a V-shape outward in the longitudinal section as shown in FIG. . The sub-extensible / contracting portions 106 and 108 that are inverted and bent outwardly are pushed back from the outside to be bent back and return to the state shown in FIGS. 1 and 2.

  In the cushioning material A for packaging according to the present invention, the sub stretchable portions 106 and 108 are not reversed and bent outward by setting the sub stretchable portions 106 and 108 to be bent outward and bent as shown in FIG. Compared with the state shown in FIG. 1 and FIG. For this reason, it becomes possible to support a larger load applied between the top plate 1 and the bottom plate 4, and for example, it can be applied to the packaging of heavy packages. Moreover, by returning from the state shown in FIG. 4 to the state shown in FIGS. 1 and 2, the side plates 2 and 3 are easily bent and stretched, for example, in a state suitable for light packaging. be able to.

  In this example, the sub-extensible / contracting parts 106 and 108 are divided into three places on the main extending / contracting parts 101 and 102, respectively, but can be provided one by one. However, it is preferable to have a plurality of locations so that the bending stretchability of the side plates 2 and 3 can be adjusted more finely by selecting the position and number of the sub stretchable portions 106 and 108 to be reversed and bent outward. .

  As shown in FIGS. 1 to 4, openings 10 and 11 are provided at the center of the top plate 1 and the bottom plate 4. This is a clue when handling the cushioning material A for packaging, and is intended to make it easier to invert and bend the auxiliary stretchable parts 106 and 108 outward by putting fingers into the cushioning material A for packaging.

  Next, a second example of the cushioning material A for packaging according to the present invention will be described with reference to FIGS.

  FIG. 5 is a perspective view from the top direction showing a second example of the packaging cushioning material of the present invention, FIG. 6 is a perspective view from the bottom direction showing a second example of the packaging cushioning material of the present invention, FIG. FIG. 8 is a developed view showing a second example of the packaging cushioning material of the present invention, and FIG. 8 is a perspective view from the top direction in a state in which the secondary stretchable part in the second example of the packaging cushioning material of the present invention is inverted and bent outward. FIG. 9 and FIG. 9 are explanatory views of the action of the end face plate in the second example of the packaging cushioning material of the present invention.

  The packaging cushioning material A of the present example is the packaging cushioning material A according to the first example having both ends opened, whereas the both ends are provided with folds 5g and 5h from both ends of the top plate 1. It has end face plates 12 and 13 which are bent downward and extended.

  The cushioning material A for packaging of this example is basically the same as that of the first example, but the end face plates 12 and 13 extend from both ends of the top plate 1 through the folds 5g and 5h, and The packaging buffer according to the first example is that the wide bottom plate 4a is provided with insertion slits 16 and 17 for inserting the insertion pieces 14 and 15 protruding at the lower edge central portion of the end surface plates 12 and 13. It is different from the material A. Hereinafter, the difference will be further described.

  The end face plates 12 and 13 have lower edge widths narrower than upper edge widths, are bent downward via fold lines 5g and 5h, and insert pieces 14 and 15 provided at the center portions of the respective ends are inserted into slits. 16 and 17 are connected to the bottom plate 4.

  In the case of the cushioning material A for packaging in this example, the end plates 12 and 13 are not elastically bent and stretched like the side plates 2 and 3, so that the top plate is shown in FIG. When the external force F is applied to the center of 1 (when an equal external force is applied to the entire top plate 1), the end plates 12 and 13 support the external force F, and the entire cushioning material A for packaging is compressed. To prevent. Therefore, even when the cushioning material A for main packaging is laid under a heavy article to be packaged, the weight of the article to be packaged does not crush from the beginning. In addition, even when this packaging cushioning material A is applied to the top or side of a heavy packaged item, it is difficult to be compressed even if it is pushed by the packaged item due to shaking during transportation. The rattling of the packaged item can be prevented.

  On the other hand, the external force applied especially during transportation is rarely applied to the center and is usually biased to the left and right. As shown in FIGS. 9B and 9C, when the external force F is applied to either the left or right side of the upper surface plate 1, the lower edge corners of the end surface plates 12 and 13 on the side to which the external force F is applied are The end plates 12 and 13 are partially collapsed, and the side plate 2 or 3 on the side to which the external force F is applied is elastically contracted to absorb the external force F. After the external force F is released, the side plate 2 or 3 is elastically restored and the end plates 12 and 13 are erected again. Even if the lower edge corner portion is partially crushed, the end face plates 12 and 13 exhibit the supporting force for the heavy packaged object again after returning to the upright position, and the packaged object rattles. Can prevent sticking.

  Since the cushioning material A for packaging in this example also has the sub stretchable portions 105 and 108 described in the first example, the end face plate can be obtained by bending the sub stretchable portions 105 and 108 outwardly. The action of 12, 13 and the action of the sub stretchable parts 105, 108 reversed and bent outward are combined to be suitable for packaging heavier items to be packaged.

  The end face plates 12 and 13 in this example preferably have a lower edge width narrower than an upper edge width in order to easily cause an inclination accompanied by partial collapse of the lower edge corner portion. Since the lower edge width of the end face plates 12 and 13 is narrower than the upper edge width, the end face plates 12 and 13 can be easily tilted when the external force biased to the left and right is applied, and the buffering property can be improved.

  The lower edges of the end face plates 12 and 13 may be connected to the bottom face plate 4 in their entirety, but in order to easily obtain the inclination of the end face plates 12 and 13, the center of the lower edge of the end face plates 12 and 13 is used. It is preferable to connect the part to the bottom plate 4. This connection can also be made with an adhesive or glue, but the inclination of the end face plates 12 and 13 is obtained by providing a certain amount of play in the connection between the lower edge central part of the end face plates 12 and 13 and the bottom face plate 4. In order to facilitate, it is preferable to insert the insertion pieces 14 and 15 into the insertion slits 16 and 17 as shown in the figure.

  The packaging cushioning material A in each of the first and second examples can be formed of, for example, corrugated paper, cardboard, plastic corrugated cardboard (commonly called “plastic corrugated”), etc. Since it is easy to obtain elastic bending up and down by bending it into a shape and it is economical, it is preferable to form it with corrugated paper. When the cushioning material A for packaging is formed with this corrugated paper, it is easy to obtain elastic bending expansion and contraction. Therefore, a fold for forming the main expansion / contraction portions 101 and 102 and a fold for partitioning the sub expansion / contraction portions 106 and 108 are used. 105 and 107 are preferably formed in a direction crossing the corrugated core corrugated core material.

  In both the first and second examples of the cushioning material A for packaging, the entire side plates 2 and 3 are bent into an inward V-shape in the longitudinal section to form the main stretchable parts 101 and 102. FIG. As shown in (a) to (c), only the upper part in the height direction, only the middle part or only the lower part of the side plates 2 and 3 are bent into a V-shape inward in the longitudinal section, The main elastic parts 101 and 102 can also be formed in part. Further, two V-shaped folds can be connected in a W-shape.

  Next, a packaging body using the above-described cushioning material A for packaging will be described with reference to FIG. 11 showing a first example of the packaging body of the present invention and FIG. 12 showing a second example of the packaging body of the present invention. To do.

  The cushioning material A for packaging of the present invention is used when the packaged object 18 is stored in a box 19 (generally a cardboard box) and packaged, and between the packaged object 18 and the inner surface of the box 19. It is inserted and filled with a gap between the two.

  In the packaging body according to the first example of the present invention shown in FIG. 11, the cushioning material A for packaging is applied to both the lower side and the upper side of the article 18 accommodated in the box 19. The package 18 is held in the box 18 while being sandwiched between the cushioning material A for packaging. Further, the main cushioning material A addressed below the article to be packaged 18 has the secondary expansion and contraction portions 106 and 108 reversed and bent outward, and the present cushioning material A addressed above the article to be packaged 18. Are not bent outwardly from the sub-extensible / retractable portions 106 and 108. In this way, the cushioning material A for packaging, which is easily applied to the load and is directed below the package 18, is not easily bent and stretched, is not easily crushed by the weight of the package 18, and is not easily loaded. The present cushioning material A addressed above the object 18 is easily bent and stretched and easily absorbs an impact, so that a good protective effect of the packaged object 18 can be obtained as a whole.

  In the package according to the second example of the present invention shown in FIG. 12, a heavy package 18a and a light package 18b are stored in a box 19, and above and below the heavy package 18a. In the addressed cushioning material A, the secondary stretchable portions 106 and 108 are bent outwardly. Further, the cushioning material A for packaging, which is assigned to the upper and lower sides of the light packaged object 18b, is not subjected to the reverse bending to the outside of the sub stretchable portions 106 and 108. In this way, even when the articles to be packaged 18a and 18b having different weights are stored in one box 19, the packaging can be performed only by preparing one type of cushioning material A for packaging.

  In the examples described with reference to FIGS. 11 and 12, the cushioning material for packaging is addressed only above and below the articles to be packaged 18, 18 a, 18 b, but also on the sides of the articles to be packaged 18, 18 a, 18 b. The cushioning material A for packaging can be addressed. If it does in this way, the to-be-packaged goods 18,18a, 18b can be protected with respect to the up-down, front-back, left-right shaking and impact.

  In addition, this cushioning material A for packaging is interposed with the upper surface plate 1 or the lower surface plate 4 facing the articles to be packaged 18, 18a, 18b. Further, the cushioning material A for packaging in the above first and second examples is interposed both below and above the articles to be packaged 18, 18a, 18b, but either below or above. You may just interpose.

It is a perspective view from the upper surface direction which shows the 1st example of the shock absorbing material for packaging of this invention. It is a perspective view from the bottom face direction which shows the 1st example of the shock absorbing material for packaging of this invention. It is an expanded view which shows the 1st example of the shock absorbing material for packaging of this invention. It is a perspective view from the upper surface direction in the state where the sub expansion-contraction part in the 1st example of the cushioning material for packaging of this invention was reversed and bent outward. It is a perspective view from the upper surface direction which shows the 2nd example of the shock absorbing material for packaging of this invention. It is a perspective view from the bottom face direction which shows the 2nd example of the shock absorbing material for packaging of this invention. It is an expanded view which shows the 2nd example of the shock absorbing material for packaging of this invention. It is a perspective view from the upper surface direction in the state where the sub expansion-contraction part in the 2nd example of the cushioning material for packaging of this invention was reversed and bent outward. It is explanatory drawing of an effect | action of the end surface board in the 2nd example of the cushioning material for packaging of this invention. It is a figure which shows the other example in the case of forming a main expansion-contraction part. It is a section schematic diagram showing the 1st example of the package of the present invention. It is a section schematic diagram showing the 2nd example of the package of the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Top plate 2,3 Side plate 4 Bottom plate 4a Wide bottom plate 4b Narrow bottom plate 5a-5h Fold 6,6 Insert piece 8,9 Insert slit 10,11 Opening portion 12,13 End plate 14,15 Insertion piece 16, 17 Insertion slit 18, 18a, 18b Packaged item 19 Box 101, 102 Main stretchable part 103, 104 Cut 105, 107 Fold 106, 108 Sub stretchable part

Claims (7)

  It has a rectangular tube shape with a top plate, left and right side plates, and a bottom plate. It crosses at least a part of the height direction of both side plates, and can be bent and expanded vertically by the fold elasticity. A main stretchable portion bent in a V-shape is formed, and two incisions vertically intersecting the fold of the apex of the V-shape inward in the longitudinal section of the main stretchable portion, and the top and bottom of the two cuts The folds respectively formed between the end portions on the same side define a sub-extension / contraction part whose bending length in the vertical direction is shorter than that of the main extension / contraction part. A cushioning material for packaging, characterized in that it can be bent and stretched outwardly into a V-shaped longitudinal section that can be bent and expanded.   The cushioning material for packaging according to claim 1, wherein the sub-extension / contraction section is divided into a plurality of sections on the both side plates.   The packaging buffer according to claim 1 or 2, wherein a bending length in the vertical direction of the sub-extension / contraction part is 1/3 to 2/3 of a bending length in the vertical direction of the main expansion / contraction part. Wood.   4. The apparatus according to claim 1, further comprising an end face plate bent downward from both ends of the upper face plate, wherein a lower edge central portion of the end face plate is connected to the lower face plate. The cushioning material for packaging as described.   It is made of corrugated paper, and the fold for forming the main stretchable part and the crease that defines the adjustment part are formed in a direction crossing the corrugated core material of the corrugated paper. The cushioning material for packaging according to any one of claims 1 to 4.   In the package which accommodated the to-be-packaged item in the box, the cushioning material for packaging according to any one of claims 1 to 5 is in a state in which a part or all of the sub-extension / contraction part is inverted and bent outward. The packaging is characterized in that the upper surface plate or the lower surface plate is disposed between the package object and the box with the upper surface plate or the lower surface plate facing the package object on either or both of the lower and upper sides of the package object. body.   The packaging body according to claim 6, wherein the cushioning material for packaging, in which the sub-extension / contraction part is not inverted and bent outward, is used in combination.

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