JP2014237486A - Buffer material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a buffer material having preferable assemble ability and sufficient intensity, and which has a three-dimensional structure.SOLUTION: The buffer material is formed of a three-dimensional structure having an upper wall part, and a side wall part surrounding a surrounding of the upper wall part and disposed continuously to the upper wall part. A folding piece which can be folded back is disposed on part of a base plate on which an opening is formed, the folding piece has a folding line for forming the upper wall part and the side wall part. The folding piece is folded to the opening, and then the part of the folding piece corresponding to the upper wall part is pushed so as to project from either one of a front surface and a rear surface of the base plate toward the other via the opening. The folding piece is folded along the folding line, for forming the three-dimensional structure.

Description

  The present invention relates to a cushioning material, and more particularly to a cushioning material having a three-dimensional structure having an upper wall portion and a side wall portion surrounding the periphery of the upper wall portion and connected to the upper wall portion.

  Conventionally, this type of cushioning material, such as that disclosed in Japanese Patent Application Laid-Open No. 2000-72132, is provided with a notch for locking at the tip of the upper wall, and the notch for locking is engaged with the locking piece of the base plate. By stopping, a three-dimensional structure composed of an upper wall portion and a side wall portion is formed.

JP 2000-72132 A

  However, in the conventional cushioning material, the operation of locking the locking notch provided at the tip of the upper wall portion with the locking piece is complicated, and much time is required for assembly. Moreover, since there is only one side wall part which supports an upper wall part, intensity | strength is not enough with respect to the force applied, for example from an upper wall part upper surface, and the function as a shock absorbing material was not enough.

  In order to achieve the above object, the present invention employs the following means. That is, the cushioning material of the present invention is a cushioning material having a three-dimensional structure having an upper wall portion and a side wall portion surrounding the upper wall portion and continuously provided to the upper wall portion, and an opening is formed. A folded piece is provided on a part of the base plate so that it can be folded, and the folded piece is provided with a fold that forms the upper wall portion and the side wall portion of the three-dimensional structure. A three-dimensional structure is formed by folding the folded piece according to the folds by pushing the part corresponding to the upper wall part of the folded piece through the opening so that it protrudes from either the front or back of the base plate to the other. It is characterized by being.

  In the present invention configured as described above, the folded piece is folded toward the opening, and thereafter, the portion corresponding to the upper wall portion of the folded piece is changed from either the front or back of the base plate to the other through the opening. A three-dimensional structure can be easily formed simply by performing a pushing operation so as to project. Therefore, there is no need for the operation of locking the notch to the locking piece as in the conventional case, the assemblability is improved, and the time required for the assembly can be reduced. In addition, the three-dimensional structure of the cushioning material also has sufficient strength against the force applied to the upper surface of the upper wall portion because the side wall portion is provided so as to surround the upper wall portion.

  In the present invention, preferably, the shape of the upper wall portion and the shape of the opening portion are substantially similar, and the area of the upper wall portion is smaller than the area of the opening portion.

  In the present invention configured as described above, when the folded piece is pushed in, it can be smoothly pushed in with a weak force, and the assemblability can be improved.

  In the present invention, preferably, the folding piece is provided with a locking portion that is locked to the periphery of the opening after the folding piece is pushed in, and the locking portion prevents the return after the folding piece is pushed in.

  In this invention comprised in this way, the return after pushing-in operation of a folding piece can be prevented by the latching | locking part. Therefore, after the three-dimensional structure is formed by the pushing operation, the folded piece does not return to the original, and the three-dimensional structure can be maintained for a long time. Moreover, the strength of the three-dimensional structure can be improved with respect to the force applied to the upper surface of the upper wall portion.

  In the present invention, preferably, the folded piece is provided with a stopper portion that contacts the periphery of the opening during the pushing operation of the folded piece, and the pushing amount of the folded piece with respect to the opening of the folded piece is regulated to a specified amount.

  In the present invention configured as described above, since the pushing amount of the folded piece is regulated to the specified amount by the stopper portion, the size of the three-dimensional structure formed by the pushing operation can be set to the prescribed size. . Therefore, the three-dimensional structure is not distorted due to excessive pressing of the folded piece, and the prescribed strength can be maintained.

  In the present invention, it is preferable that the end of the stopper portion on the side wall portion abuts the periphery of the opening during the pushing operation of the folded piece, so that after the pushing of the folded piece is completed, the entire surface of the stopper portion is aligned with the periphery of the opening. It is regulated to abut.

  In the present invention configured as described above, the front end of the stopper portion on the side wall portion abuts on the periphery of the opening so that the entire surface of the stopper abuts on the periphery of the opening after the folding piece is pushed in. Therefore, the entire surface of the stopper portion can be reliably brought into contact with the periphery of the opening, and a three-dimensional structure can be formed so that the stopper portion can play its original role.

  In the present invention, preferably, the order corresponding to the upper wall portion of the folded piece is protruded from one of the front and back sides of the base plate to the other through the opening, so that the order of folding of all the folds is controlled. ing.

In the present invention configured as described above, all the folds are folded so that the portion corresponding to the upper wall portion of the folded piece protrudes from the front or back of the base plate to the other through the opening. Since the order is controlled, a three-dimensional structure can be formed simply by pressing a portion corresponding to the upper wall portion of the folded piece.

  According to the present invention, it is possible to provide a cushioning material having a three-dimensional structure having good assemblability and sufficient strength.

It is an expansion | deployment perspective view of the shock absorbing material which is embodiment of this invention. It is a perspective view which shows the state in the middle of the 1st assembly of the shock absorbing material which is embodiment of this invention. It is a perspective view which shows the state in the middle of the 2nd assembly of the shock absorbing material which is embodiment of this invention. It is a perspective view which shows the assembly completion state (back surface) of the shock absorbing material which is embodiment of this invention. It is the perspective view which made the shock absorbing material of FIG. 4 upside down (the surface of an assembly completion state). It is the perspective view which looked at the shock absorbing material of FIG. 5 from a different angle.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a deployed state of a cushioning material according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a state during the first assembly of the cushioning material according to an embodiment of the present invention. 3 is a perspective view showing a state in the middle of the second assembly of the cushioning material according to the embodiment of the present invention, and FIG. 4 is an assembled state (back surface) of the cushioning material according to the embodiment of the present invention. FIG. FIG. 5 is a perspective view of the cushioning material of FIG. 4 turned upside down (the surface in the assembled state).
In FIG. 1, 1 is a base plate made of cardboard, and 2 is a substantially triangular opening formed in the base plate. Reference numeral 24 denotes a notch formed in a part of the opening. In the following description, the upper surface side of the base plate 1 is referred to as the back surface and the lower surface side is referred to as the surface with reference to FIG.

  As shown in FIG. 1, the folded piece 3 is connected to the base plate 1 via a connecting portion 10. The folded piece 3 is disposed at a position close to the opening 2 of the base plate 1 and is formed so as to be separable from the base plate 1 by a cut 6. A first fold 4 is provided on the base plate 1 side of the connecting portion 10, and a second fold 8 is provided on the folded piece 3 side. Therefore, the folded piece 3 can be folded toward the opening 2 as shown in FIGS.

  The folded piece 3 is provided with a substantially triangular upper wall portion 12 for forming a three-dimensional structure of a cushioning material, which will be described in detail later, and side wall portions 14 and 15 so as to surround the upper wall portion 12. Yes. The upper wall portion 12 and the side wall portions 14 and 15 are connected to each other via a third fold 18. The upper wall portion 12 is substantially similar in shape to the opening 2 described above, and is formed with a slightly smaller area than the opening 2.

  In addition, a stopper portion 16 is connected to the side wall portion 14 via a fourth fold 22. The stopper portion 16 regulates the amount of pushing at the time of pushing-in operation for pushing the folded piece 3 described later in detail into the opening 2. On the other hand, since the side wall portion 15 is connected to the base plate 1 through the connecting portion 10 without providing the stopper portion 16 as in the side wall portion 14, the pushing amount is naturally regulated.

  The tip of the stopper portion 16 on the side wall portion side is bent in an L shape. When assembling the cushioning material, when the front end portion of the stopper portion 16 on the side wall portion side is bent from the state shown in FIG. 2 to the state shown in FIG. Abuts the periphery. By doing so, it is possible to prevent the entire stopper portion 16 from being bent toward the fourth fold until the folding piece 3 is pushed in, and after the pushing of the folding piece 3 is completed, The entire surface of the portion 16 is regulated so as to contact the periphery of the opening.

  Further, locking portions 20 are provided at both ends of the side wall portions 14 and 15. Although the details of the locking portion 20 will be described later, this is for preventing the folded piece 3 from returning when the folded piece 3 tries to return to the original state after the pushing operation.

  In order to project the portion corresponding to the upper wall portion 12 of the folded piece 3 from the front or back of the base plate 1 to the other through the opening 2, the order in which all the folds are folded is determined by the upper wall. The three-dimensional structure including the portion 12 and the side wall portions 14 and 15 is controlled to be easily formed. That is, when the folded piece 3 is separated from the base plate 1 by the cut 6 from the state shown in FIG. 1, the first fold 4 is first bent and is controlled to be easily bent toward the opening 2. Unlike the other folds, this crease 4 is controlled to be easy to break by making a crease with a cut. Next, the second fold is folded so as to be in the state shown in FIGS. 2 to 3 so that the folded piece 3 can be easily pushed into the opening 2. Next, from one third fold line 18 in contact with the base end side B of the upper wall portion 12 so that the folded piece 3 can be pushed easily by pushing the folded piece 3 into the opening 2 to the state shown in FIG. First, control is performed so that the two third folds 18 in contact with the front end side of the upper wall portion 12 start to be broken. The third fold 18 has two third folds in contact with the distal end side of the upper wall portion 12 before one third fold 18 in contact with the base end side B of the upper wall portion 12. The depth of the fold is deeper at the two third folds 18 in contact with the tip side than at the one third fold 18 in contact with the base end side B so that the eye 18 starts to bend. Further, the shape of the fold is also a shape that is easy to break. Finally, as shown in FIG. 4, the third fold at one location in contact with the base end side B of the upper wall portion 12 so as to push the base end side B of the upper wall portion 12 toward the opening 2. The eye 18 can be broken to the assembled state shown in FIG.

Hereinafter, a method for assembling the cushioning material according to the embodiment of the present invention will be described with reference to FIGS.
First, from the state shown in FIG. 1, the folded piece 3 is separated from the base plate 1 by the cut 6, and is bent with the first fold 4 as a base point as shown in FIG. 2, and the folded piece 3 is made with respect to the base plate 1. Stand up. Thereafter, as shown in FIG. 3, the folded piece 3 is further folded with the second fold 8 as a base point, and the folded piece 3 is folded toward the opening 2. Thereafter, the front end side A of the upper wall portion 12 of the folded piece 3 is pushed toward the opening 2, and the front end side A and the side wall portion 14 of the upper wall portion 12 of the folded piece 3 protrude from the back surface of the base plate 1 to the surface. Let Then, the base end side B of the upper wall portion 12 of the folded piece 3 is also pushed toward the opening 2 so that the base end side B and the side wall portion 15 of the upper wall portion 12 of the folded piece 3 are moved from the back surface of the base plate 1 to the surface. When protruding, the assembly is completed as shown in FIG. The pushing amount during the pushing operation described above is performed until the stopper portion 16 comes into contact with the peripheral edge of the opening 2. By configuring in this way, the pushing amount of the folded piece 3 can be regulated to a prescribed amount, and the shape of the three-dimensional structure composed of the upper wall portion 12 and the side wall portions 14 and 15 can be made a prescribed shape.

  At this time, the upper wall portion 12 of the folded piece 3 is substantially similar in shape to the opening 2 and is formed in a slightly smaller area than the opening 2, so that the above pushing operation can be performed smoothly. And the assembling property is also improved. In particular, since the upper wall portion 12 and the opening portion 2 have substantially similar shapes, the folding piece 3 naturally bends according to the third fold line 18 simply by pushing the folding piece 3 toward the opening portion 2. As shown in FIG. 5, a three-dimensional structure composed of the upper wall portion 12 and the side wall portions 14 and 15 is formed. Moreover, since the notch part 24 is provided in the opening part 2, the opening part 2 is easy to bend at the time of the above-mentioned pushing operation | movement, and pushing operation can be performed smoothly.

  In the assembling method described above, the opening 2 is pushed into the opening 2 from the distal end A of the upper wall portion 12 of the folded piece 3, but conversely, the proximal end B is pushed in, and then the distal end A is pushed in. Is possible.

FIG. 6 is a perspective view of the cushioning material of FIG. 5 viewed from different angles. (It is the figure seen from the front end side A of the folding piece 3.)
As shown in FIG. 6, because the locking portions 20 are provided at both ends of the side wall portions 14 and 15, the locking portion 20 is locked to the periphery of the opening 2 after the above-described pushing operation is completed. The upper wall part 12 and the side wall parts 14 and 15 in a protruding state on the surface of the base plate 1 can be maintained without returning to the original state. Since the locking portions 20 formed at both ends of the side wall portion have a tapered shape whose width decreases toward the upper side, the shape is less likely to cause resistance when the folded piece 3 is pushed.

  The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, in the present embodiment, the upper wall portion 12 is formed in a substantially triangular shape, but may be formed in other polygonal shapes (for example, a substantially rectangular shape). In this embodiment, the base plate 1 is made of corrugated cardboard. However, a member such as resin or cardboard may be used as necessary.

DESCRIPTION OF SYMBOLS 1 Base board 2 Opening part 3 Folding piece 4 1st crease 6 Notch 8 2nd crease 10 Connection part 12 Upper wall part 14 Side wall part 15 Side wall part 16 Stopper part 18 3rd crease 20 Locking part 22 4th crease 24 notch

Claims (6)

A cushioning material comprising a three-dimensional structure having an upper wall portion and a side wall portion surrounding the upper wall portion and continuously provided to the upper wall portion,
A folded piece is provided on a part of the base plate in which the opening is formed so that it can be folded.
The folded piece is provided with a fold forming an upper wall portion and a side wall portion of the three-dimensional structure,
The folded piece is folded toward the opening, and then a portion corresponding to the upper wall portion of the folded piece is pushed in such a way as to project from the front or back of the base plate to the other through the opening. The cushioning material in which the three-dimensional structure is formed by bending the folded piece according to the fold by performing the operation.   The cushioning material according to claim 1, wherein the shape of the upper wall portion and the shape of the opening portion are substantially similar, and the area of the upper wall portion is smaller than the area of the opening portion.   The locking portion is provided with a locking portion that is locked to the periphery of the opening after the folding piece is pushed in, and the locking portion prevents return after the folding piece is pushed in. The buffer material described.   4. The stopper is provided on the folded piece so as to abut against a peripheral edge of the opening during the pushing operation of the folded piece, and the pushing amount of the folded piece with respect to the opening is restricted to a predetermined amount by the stopper. The buffer material described.   During the pushing operation of the folded piece, the end of the stopper portion on the side wall portion abuts on the peripheral edge of the opening, so that after the pushing of the folded piece is completed, the entire surface of the stopper part is in contact with the peripheral edge of the opening. The cushioning material according to claim 4, wherein the cushioning material is regulated so as to come into contact.   The order in which all the folds are folded is controlled so that a portion corresponding to the upper wall portion of the folded piece protrudes from either one of the front and back surfaces of the base plate through the opening. Item 6. The cushioning material according to item 5.