JP2012101849A - Cushioning body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cushioning body capable of reducing costs of manufacturing, transportation, and storage, easy to be assembled, requiring the small number of members, and having a sufficient cushioning property.SOLUTION: A surface 1 becomes a plate which contacts with an upper or lower surface of a packed product, and a surface 2 becomes a plate which contacts with a side surface of the packed product. Lengths H1, H2, h are set to satisfy an inequality of h<H1, H2. The surface 2 set like this is folded to one direction (inward) along a side 11. A surface 3 is folded to the reverse direction (outward), and a surface 4 is folded to the same direction as the surface 2 (inward) which folds the surfaces 2, 3, 4 thrice. Surfaces 20, 21, 22 each of which is a part of each surface are folded.

Description

The present invention relates to a shock absorber that is mounted between an outer box and a packaged product and protects the product from impact and vibration.

Up to now, in order to protect particularly fragile things such as precision parts as cushioning members, air cushions of the type in which air is sealed with plastic film or urethane foams that have sufficient cushioning properties have been used. It was. However, from the viewpoints of global environment protection and recycling, there is a need for a cushioning member using a recyclable paper or the like. However, even if paper or corrugated cardboard is used in a generally known manner, it will become complicated when trying to provide sufficient cushioning, and an increase in cost cannot be ignored. Air cushion urethane made of synthetic resin The importance of developing cushions that are renewable and replaceable foams that are inexpensive and have sufficient cushioning properties is increasing.

For example, there is a method in which a cylindrical paper tube is produced using cardboard or the like and its elasticity is used, but there are cases where the buffering property is insufficient. In addition, the cost for making it into a tube was high, and its transportation and storage costs were also high due to its shape. Even if the product is a simple type such as a rectangular parallelepiped, there is a way to provide cushioning by using cushioning material and all six surfaces of the product using sleeves etc., but the number of members when packing is increased In other words, there is a problem in terms of management and cost.

The present invention has been made based on such a background, and it is possible to reduce costs including transportation and storage, and further, it is easy to assemble, the number of members is small, and a buffer having sufficient buffering properties. The purpose is to provide a body.

In order to solve the above-mentioned problem, the present invention is a shock absorber that is interposed between a product and an outer box and protects the product, and includes a rectangular bottom surface in contact with the product, and each side of the bottom surface. A first side surface having a substantially rectangular shape extending outside at least two sides, the first side surface having a boundary line between the first side surface and the bottom surface as a first fold line; and A second side surface having a substantially rectangular shape extending outward, the second side surface having a boundary line between the second side surface and the first side surface as a second fold line; and an outer side of the second side surface A third side surface extending in a substantially rectangular shape, the second side surface having a boundary between the second side surface and a third fold line, and the first fold line; The distance h between the second fold lines is the distance H ₁ between the second fold line and the third fold line and the outside of the third fold line and the third side surface. The second fold line is smaller than any one of the distances H _{2 from} the side, and the second fold line is folded in the direction opposite to the first fold line at the time of assembly, and the third fold line is defined as the second fold line. Is characterized by folding in the opposite direction.

A small piece can be provided on the outer side of both end portions of the first side surface via a folding line, and the small piece can be bonded to the inner side of the adjacent first side surface during assembly.

Any number of side surfaces can be provided on the outer side of the third side surface, and the boundary line between the side surfaces can be alternately folded during assembly.

The square may be a rectangle, for example, and the number of the first side surfaces may be four.

The quadrangular shape may be a square, and the number of the first side surfaces may be four.

A shock absorber that is interposed between the product and the outer box and protects the product, and has a rectangular bottom surface that contacts the product, and a substantially rectangular shape that extends outside at least two of the sides of the bottom surface. A first side surface having a boundary line between the first side surface and the bottom surface as a first fold line, and a substantially rectangular second side surface extending outside the first side surface A distance h between the first fold line and the second fold line, the second fold line having a second fold line as a boundary line between the first fold line and the first fold line. Is smaller than the distance H ₁ between the second fold line and the outside of the second side surface, and the second fold line is folded in the direction opposite to the first fold line during assembly. And

According to the present invention, it is possible to provide a shock absorber unit that has sufficient buffering properties by reducing the manufacturing cost and the transport cost, and further reducing the storage space and assembling easily, inexpensively, and as described above. it can.

It is the expansion | deployment top view which showed the member which comprises the buffer which concerns on embodiment of this invention. It is a perspective view of the buffer body which can be formed by folding the member shown in FIG. It is the longitudinal cross-sectional view which showed the state which uses two buffer bodies of FIG. 2 and supports a product up and down in an exterior box. It is the graph which showed the comparative drop test data of embodiment. It is the expansion | deployment top view in which the bottom face which comprises the buffer body which concerns on embodiment of this invention showed the polygonal member.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view showing members constituting a shock absorber according to an embodiment of the present invention, in which members made of cardboard are developed.

Corrugated cardboard as a material of the buffer can be appropriately used with a thickness of several millimeters, but here, a cardboard having a thickness of 5 mm is used. As shown in FIG. 1, the buffer according to the present embodiment has a symmetry of 90 degrees around the central axis orthogonal to the paper surface of FIG. do. The surface 1 (which is an example of the “square bottom surface” in the claims) is a plate portion that is in contact with the upper and lower surfaces of the product to be packed, and the surface 2 (the substantially rectangular second in the claims). Is a plate part in contact with the side of the product to be packed. For assembly, the sides 10 to 15 and 17 to 19 are creases, and the sides 10, 15 and 18 are partially cut in addition to the creases so that they can be more easily folded. The side 16 becomes a cut portion.

The lengths H ₁ , H ₂ , h shown in FIG. 1 are set so that h <H ₁ , H ₂ . The surface 2 set in this way is folded in one direction (inside) along the side 11, and the surface 3 (which is an embodiment of the third side surface of the substantially rectangular shape in the claims) is in the reverse direction (outside). The surface 4 is folded to the same side (inner side) as the surface 2. By doing so, the surfaces 2, 3, and 4 are folded in a triple manner, and the surfaces 20, 21, and 22 that are part of the respective surfaces are also folded in the same manner. Surfaces 5, 6, and 7 are folded inward at side 17, outward at side 18, and inward at side 19 in the same manner as surfaces 2, 3, and 4. Certain surfaces 23, 24, and 25 (which are embodiments of the small pieces of the claims) are similarly folded in a triple manner. Then, the already overlapped surfaces 20, 21, 22 and surfaces 23, 24, 25 are bent approximately 45 degrees outward along the sides 13, 14 so that the surfaces 22 and 23 are in contact with each other. Depending on the shape of the bottom surface, the folding angle is adjusted to about 30 to 70 degrees. By making the other sides the same, the buffer body 30 in the shape of a tray as shown in FIG. 2 is completed.

The surface 22 and the surface 23 do not need to be bonded, but may be bonded with an adhesive, a stapler, or the like. In order to facilitate handling, the surfaces 20, 21, 22 and the surfaces 23, 24, 25 may be respectively or collectively fastened with a tape, an adhesive, or the like.

The product is packed as a set of two cushions made in this way. FIG. 3 is an explanatory diagram of a cross section of the present embodiment. In the outer box 33, the two cushioning bodies _30a and _30b are paired, and the product 32 is sandwiched vertically. However, the sandwiching direction is not limited to the top and bottom, and can be either front and back or left and right.

As shown in FIG. 3, the surface _{1 a} of the upper surface and the cushion 30 _a product 32, the surface _{1 b} of the bottom surface and the cushion 30 _b of the product are in contact, respectively. As described above, h, H ₁ , and H ₂ in FIG. 1 are adjusted in advance so that the surface 1 is separated from the upper surface 40 and the bottom surface 41 of the outer box by a distance d ₁ . This prevents the product and the upper and lower bottom surfaces of the buffer body in contact with the product from touching the wall surface of the outer box, thereby providing the upper and lower buffering properties. Also, has been adjusted dimensioned to the wall of the outer box is separated by a distance d _2, the horizontal direction by the side surface of the damping body in the side surface of the product in contact with it so as not to touch the outer box wall by this The shock-absorbing property can be given at the same time. The sizes of the surfaces 1 _a and 1 _b contacting the upper and lower surfaces of the shock absorber product do not need to be the same, but the size is adjusted according to the size of the surface of the product to be contacted, and if necessary, the length H ₁ , H ₂ are also adjusted.

The shock absorber of the present embodiment can arbitrarily adjust the shock absorbing performance by changing the size, thickness, rigidity, etc. of the cardboard. A flat plate as shown in FIG. 1 can be prepared using a normal punching die and transported and stored as it is.

As for the buffering property, a product having a weight of about 3 kg was actually packed and dropped from a height of 75 cm as shown in FIG. FIG. 4 (A) is a graph showing the result. The sum of the squares of accelerations in a total of three directions including the falling direction and the remaining two axis directions perpendicular to the dropping direction are dropped with the vertical direction, left and right, and front and rear in FIG. The change in time is shown with the square root of the acceleration as the acceleration value. The measurement interval is 5 msec. The maximum value of acceleration is within 50G, which is a general guideline, and the peak width of acceleration is 20-30 msec. FIG. 4 (B) shows data when a conventional resin air cushion or the like is used. As can be seen by comparing the result of FIG. 4 (A) with this, the shock absorber of this embodiment is a conventional one. It can be seen that a sufficient buffering effect equivalent to or higher than that of a resin air cushion or the like is obtained.

The buffer body of the present embodiment is not limited to the quadrangular shape as described above, but may have a polygonal bottom surface 45 in contact with the product as shown in FIG. Further, the vertical and horizontal lengths W and L of the bottom surface 45 may be the same or different.

Furthermore, when packing a lightweight object, the buffer body of the present embodiment may be doubled instead of being tripled as described above. On the other hand, in the case of a heavy article, it can be further buffered by folding it into three or more layers.

Also, when using cardboard, the strength varies depending on the direction of the eyes, so if necessary, use the necessary part or the whole with a slip so that the direction of the eyes of the two cardboards is 90 degrees. You can also.

As described above, the shock absorber of this embodiment can be easily manufactured with a plate material such as corrugated cardboard, saves space because it does not take up space, and can be easily assembled at the time of use, and the number of members is two. A small number of one set is enough. In the above embodiment, the material has been described as corrugated cardboard. However, those skilled in the art can use materials other than corrugated cardboard as long as the material has a necessary cushioning effect and has an appropriate workability. Easy to understand.

1 to 7, 1 _a , 1 _b , 20 to 25, 45 Plate portion 10 to 15, 17 to 19 Crease 16 Cut portion 30, 30 _a , 30 _b Buffer 32 Product 33 Exterior box 40, 41 Exterior box surface portion

Claims (6)

A shock absorber that is interposed between the product and the outer box and protects the product, and has a rectangular bottom surface that contacts the product, and a substantially rectangular shape that extends outside at least two of the sides of the bottom surface. A first side surface having a boundary line between the first side surface and the bottom surface as a first fold line, and a substantially rectangular second side surface extending outside the first side surface A second side surface having a boundary line between the first side surface and a second fold line, and a third side surface having a substantially rectangular shape extending outside the second side surface. And a second side surface having a boundary line between the second side surface and a third fold line, and a distance h between the first fold line and the second fold line is said second folding line and said third folding line small distances H ₁ and than either of the distance of H ₂ and the third folding line and the third side surface of the outer edge between the set The second fold line is folded in a direction opposite to the first fold line at the time of standing, and the third fold line is folded in a direction opposite to the second fold line. body. The buffer according to claim 1, wherein a small piece is provided outside the both end portions of the first side surface via a fold line, and the small piece is bonded to the inner side of the adjacent first side surface during assembly. body. The shock absorber according to claim 1 or 2, wherein an arbitrary number of side surfaces are provided on an outer side of the third side surface, and a boundary line of each side surface is alternately folded at the time of assembly. The shock absorber according to any one of claims 1 to 3, wherein the quadrangle can be a rectangle, for example, and the number of the first side faces is four. The shock absorber according to any one of claims 1 to 3, wherein the quadrangle is a square, and the number of the first side faces is four. A shock absorber that is interposed between the product and the outer box and protects the product, and has a rectangular bottom surface that contacts the product, and a substantially rectangular shape that extends outside at least two of the sides of the bottom surface. A first side surface having a boundary line between the first side surface and the bottom surface as a first fold line, and a substantially rectangular second side surface extending outside the first side surface A distance h between the first fold line and the second fold line, the second fold line having a second fold line as a boundary line between the first fold line and the first fold line. Is smaller than the distance H ₁ between the second fold line and the outside of the second side surface, and the second fold line is folded in the direction opposite to the first fold line during assembly. A shock absorber.

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