JP2007118964A - Cushioning material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cushioning material capable of forming a cushioning part without using an adhesive tape and an adhesive, and being not bulky under a development. <P>SOLUTION: The cushioning part 4 with a polyhedral shape is formed by cutting, raising and bending a side face 41, a side face 42, a top face 43 and a side face 44 from a base part 1 being a flat plate-like shape under the development. When the base part 1 under the development is square-shaped, and the base part 1 is formed by punching from a blank, remaining parts which can not be used can be made less in the original plate after punching. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cushioning material, and more particularly to a cushioning material interposed between an article to be packed and an outer case.

  In order to protect the package from external shocks during transportation and storage, a cushioning material has been conventionally provided between the outer case and the package. Corrugated paper is widely used as a material for the buffer material from the viewpoints of environment and cost. For example, corrugated paper was bent into a square column and used as a cushioning material. 6 and 7 show an example of a conventional cushioning material.

FIG. 6 is a developed view of the buffer material in a state where the buffer blocks B _{1 to} B ₈ are stuck to the base 1 ′, and FIG. 7 is an assembly diagram thereof. As shown in FIG. 6, the base 1 ′ of the cushioning material has a rectangular bottom surface 11 ′ and four side surfaces 12 ′ connected to the four sides of the bottom surface 11 ′ via folding lines 8a, 8b, 8c, and 8d. , 13 ′, 14 ′, 17 ′, and joining flaps 15 a ′, 15 b ′, 16 a ′, 16 b ′ connected to both side ends of the side surface 12 ′ and the side surface 14 ′ via fold lines 8 e, 8 f, 8 g, 8 h. And have. The rectangular prism buffering block B ₁ .about.B ₈ is adhered to a predetermined position of the base 1 '. The buffer blocks B _{1 to} B ₈ are formed by bending corrugated paper into a quadrangular prism shape. The buffer blocks B _{1 to} B ₈ are formed in various shapes depending on the size of the gap between the outer case and the packaged object, and the bottom surface 11 ′ and the side surface 12 ′ of the base 1 ′ are matched to the shape of the packaged object. It was affixed at predetermined positions of 13 ', 14', and 17 '.

When assembling this cushioning material, the four side surfaces 12 ', 13', 14 ', 17' are bent substantially perpendicularly to the bottom surface 11 'at the folding lines 8a, 8b, 8c, 8d, and then joined flaps. 15a ', 15b', 16a ', 16b' are bent at folding lines 8e, 8f, 8g, 8h and brought into contact with the side end portions of the side surfaces 13 ', 17', thereby joining flaps 15a ', 15b', 16a ', 16b. 'Join the side and the joining flap with the adhesive applied to. Then, a box-like cushioning material having an upper surface opening as shown in FIG. 7 is obtained.
JP 2004-307034 A Japanese Utility Model Publication No. 6-6267

  However, the conventional buffer material requires a process for sticking the buffer block to the base with an adhesive tape, an adhesive, or the like, which increases the number of work processes and is one factor for increasing the cost. Further, since the cushioning material having the cushioning block attached to the base is bulky even in the unfolded state, a large volume is required at the storage location.

  The present invention has been made in view of such a conventional problem. The object of the present invention is to form a buffer block without using an adhesive tape or an adhesive, and to be bulky in a developed state. There is no cushioning material to provide.

  According to the present invention, there is provided a cushioning material characterized by having a flat plate-like base portion in a developed state and a cushioning portion formed into a polyhedral shape by bending a cushioning piece cut and raised from the base portion. .

  In the case of punching and forming the base portion from the original plate, it is desirable that the shape of the base portion in the unfolded state is a quadrangular shape from the viewpoint of reducing unusable remaining portions in the original plate after punching.

  In addition, the shape of the buffer portion is preferably a quadrangular prism from the viewpoint of ease of assembly and a buffer effect.

  In the cushioning material of the present invention, since the cushioning portion formed in a polyhedral shape is formed by bending the cushioning piece cut and raised from the flat base in the unfolded state, an adhesive member is not required to attach the cushioning portion to the base. . Thereby, the manufacturing process of the buffer material can be simplified, which leads to a reduction in manufacturing cost. In addition, the cushioning material of the present invention is flat in the deployed state, and thus is not bulky and can be efficiently stored in a limited space.

  When the shape of the base portion in the unfolded state is a square shape, when the base portion is punched from the original plate, the remaining portion that cannot be used in the original plate after punching can be reduced.

  Moreover, when the shape of the buffer portion is a quadrangular prism shape, the buffer portion is assembled inexpensively and a high buffer effect is obtained.

  Hereinafter, although the buffer material of this invention is demonstrated based on figures, this invention is not limited to these embodiments at all.

  FIG. 1 is a partial development view showing an embodiment of a cushioning material according to the present invention. The base 1 shown in FIG. 1 has a substantially rectangular shape, and four side walls 12, 13 a, 13 b, 4 fold lines 5 a, 5 b, 6 c, 6 h are attached to four sides (three sides in this figure) of the rectangular bottom plate 11. 14 are connected (in this figure, another side wall is not shown). Joining flaps 15 and 16 are connected to both side ends of the side wall 12 and the side wall 14 via folding lines 5c and 5d. The joining flaps 15 and 16 are formed with joining pieces 151a, 151b, 161a and 161b in which the upper side of the trapezoidal shape is a folding line and the remaining three sides are cut. On the other hand, on the side walls 13a and 13b, joint holes 131a, 131b, 132a, and 132b that are the same as or slightly larger than the joint pieces are formed in portions that overlap the joint pieces 151a, 151b, 161a, and 161b when the cushioning material is assembled. ing.

  When assembling the base 1, the side walls 12, 13 a, 13 b and 14 are bent substantially perpendicularly to the bottom surface 11 at the folding lines 5 a, 5 b, 6 c and 6 h. Then, the joining flaps 15 and 16 at both ends of the side walls 12 and 14 are folded at the folding lines 5c and 5d, and overlapped on the side end portions of the side walls 13a and 13b. Then, the joining pieces 151a, 151b, 161a, 161b and the joining holes 131a, 131b, 132a, 132b just overlap. Then, the joining pieces 151a, 151b, 161a, 161b are bent and pushed into the joining holes 131a, 131b, 132a, 132b to join the side walls 12, 14 and the side walls 13a, 13b. Thereby, it becomes possible to assemble a rectangular parallelepiped cushioning material having an upper surface opening without using any adhesive.

  On the other hand, the buffer portions 2 and 3 (illustrated in FIGS. 2 and 3) formed on the base portion 1 are assembled as follows. An unfolded buffer portion 2 (shown in FIG. 2) and a buffer portion 3 (shown in FIG. 3) are formed by making cuts over the bottom surface 11 and the side walls 13a and 13b of the base portion 1. For easy understanding, the bottom portions of the buffer portion 2 and the buffer portion 3 are illustrated as “A” and “B”, respectively. The buffer portion 2 has a side wall 13a, a side surface 21, and a side surface 22 connected to the bottom A via a fold line, and a side surface 23 and a side surface 24 connected to side surfaces of the side surface 21 and the side surface 22 via fold lines 6d and 6e, respectively. Has been.

  A tongue-like engagement piece 231 is connected to the side of the side face 23 via a folding line 6f, and a trapezoidal joining piece 232 is formed on the upper side of the side face 23 by a notch and the folding line 6f. An elongated engagement hole 241 is formed in the vicinity of the center of the fold line 6 e of the side surface 24, and a notch 242 having substantially the same shape as the joining piece 232 is formed on the upper side of the side surface 24.

  The assembly of the buffer portion 2 will be described with reference to FIG. First, one side surface of the buffer portion 2 is simultaneously formed by vertically bending the side wall 13a of the base portion 11. Further, the two opposite side surfaces 21 and 22 of the buffer portion are formed by being bent substantially perpendicularly to the bottom surface A along the folding lines 6a and 6b. The remaining side surface of the buffer portion 2 is formed by bending the side surface 24 along the folding line 6e and further bending the side surface 23 along the folding line 6d. At this time, the engaging piece 231 is fitted into the engaging hole 241 and the joining piece 232 is pushed into the cutout portion 242 to firmly join the side face 23 and the side face 24 so as not to come off. In this way, the hollow square pillar-shaped cushioning material 2 is assembled perpendicularly to the bottom surface 11.

  Further, the buffer portion 3 has the side wall 13 and the side surface 32 connected to the bottom portion B through the folding lines 6h and 6i, and the side surface 31 and the side surface 33 are connected in order to the side of the side wall 13b through the folding lines 6j and 6k. Yes. Further, the side surface 34 is connected to the side of the side surface 32 via a folding line 6m. A tongue-like engagement piece 341 is connected to the side of the side face 34 via a fold line 6n, and a trapezoidal joining piece 342 is formed on the upper side of the side face 34 by a cut and a fold line 6p. An elongated engagement hole 331 is formed in the vicinity of the center of the fold line 6k on the side surface 33, and a notch 332 having substantially the same shape as the joining piece 342 is formed on the upper side of the side surface 33.

  The assembly of the buffer portion 3 will be described with reference to FIG. First, one side surface of the buffer portion 3 is simultaneously formed by bending the side wall 13b of the base portion 1 substantially vertically. Also, one side surface of the buffer portion 3 is formed by bending the side surface 31 at the folding line 6j of the side wall 13b. On the other hand, the other side surface of the buffer portion 3 is formed by bending the side surface 32 substantially perpendicularly to the bottom surface B at the folding line 6i. The remaining side surface of the buffer portion 3 is formed by folding the side surface 33 along the folding line 6k and further folding the side surface 34 along the folding line 6m. At this time, the engaging piece 341 is fitted into the engaging hole 331 and the joining piece 342 is pushed and bent to the notch 332 so that the side face 33 and the side face 34 are firmly joined. In this way, the hollow square columnar cushioning material 3 is assembled perpendicularly to the bottom surface 11.

  Another embodiment of assembling the buffer portion on the base 1 is shown in FIGS. FIG. 4 is a development view of the buffer portion 4, and FIG. 5 is an assembly view of the buffer portion 4. As shown in FIG. 4, buffer pieces including a side surface 41, a side surface 42, a top surface 43, and a side surface 44 are formed by cutting on both sides of the bottom surface C that is a part of the base 1. The side surface 41 is connected to the bottom surface C via a bend line 7a, and a long and narrow engagement hole 411 is formed at a substantially central portion of the bend line 7a. On the other hand, the side surface 42 is connected to the bottom surface C via a fold line 7b, and the top surface 43 and the side surface 44 are connected to the side surface 42 via fold lines 7c and 7d, respectively. A tongue-like engagement piece 441 is connected to the center of the side of the side face 44 via a folding line 7e.

  As shown in FIG. 5, when assembling the buffer portion 4, first, the side surface 41 is bent substantially perpendicularly to the bottom surface C along the fold line 7a. Then, a buffer piece including the side surface 42, the upper surface 43, and the side surface 44 is raised from the base portion 1, and the side surface 42 is first bent so as to be substantially perpendicular to the bottom surface C along the bending line 7b. Next, the upper surface 43 is bent so as to be substantially perpendicular to the side surface 42 at the folding line 7c, and then the side surface 44 is bent so as to be substantially perpendicular to the upper surface 43 at the folding line 7d. Then, the engagement piece 441 is bent at the bending line 7e and inserted into the engagement hole 411, and the side surface 41 and the side surface 44 are joined so as not to be detached.

  In the embodiment described above, the buffer portion is formed on the bottom surface 11 of the base 1, but it may be formed on the side surface or top surface of the base 1. The cross-sectional shape of the buffer portion is not limited to a quadrangle, and may be a triangle, a polygon, a circle, or an ellipse.

  As a material of the base used in the present invention, a conventionally known material that can be bent can be used in addition to corrugated paper.

It is a partial expanded view which shows one Embodiment of the shock absorbing material which concerns on this invention. It is a fragmentary perspective view explaining the assembly of a buffer part. It is a fragmentary perspective view explaining the assembly of a buffer part. It is an expanded view which shows the other example of a buffer part. FIG. 5 is an assembly diagram of the buffer portion of FIG. 4. It is an expanded view which shows the conventional shock absorbing material. It is a perspective view of the assembly state of the shock absorbing material of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base part 2,3,4 Buffer part A, B, C Bottom face of buffer part 11 Bottom face 12, 13a, 13b, 14 Side wall 21, 22, 23, 24 Side face (buffer piece)
31, 32, 33, 34 Side surface (buffer piece)

Claims (3)

  A cushioning material comprising: a flat base portion in a deployed state; and a buffer portion formed into a polyhedral shape by bending a buffer piece cut and raised from the base portion.   The cushioning material according to claim 1, wherein the base portion has a quadrangular shape in the unfolded state.   The cushioning material according to claim 1 or 2, wherein the cushioning portion has a quadrangular prism shape.

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