JP2006327627A - Cushioning body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily manufacture a cushioning body with an enough strength, for example, in relation to the cushioning body placed between an article to be packed and the inner face of a container in a paper-made container, and preventing the article to be packed from being damaged, and for example, in relation to the cushioning body using a foldable sheet such as a corrugated fiber board and a cardboard. <P>SOLUTION: A pillar-shaped part 10 with a base wall 12 and side walls 14a and 14b is formed by bending a corrugated fiberboard so as to make the side face shape into an L shape. Contacting parts 16a and 16b are respectively integrally provided on both ends of the pillar-shaped part 10. The contacting walls 22a and 22b of the contacting parts 16a and 16b are brought into contact with the article to be packed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a shock absorber that is interposed between an article to be packed and the inner surface of the container in a paper container, for example, to prevent damage to the article to be packed. Regarding what was used.

  An example of a shock absorber using a foldable sheet, for example, cardboard, is disclosed in Patent Document 1. This shock absorber is formed by forming a substantially rectangular parallelepiped winding portion at both ends of a flat plate-like connecting plate, and is formed by bending one cardboard.

Japanese Utility Model Publication No. 62-1069

  Since this shock absorber has a configuration in which winding portions are provided at both ends of a flat plate-like connecting plate, it can only be used to place an article to be packed between these winding portions. For example, it is conceivable that the connecting plate is bent at a substantially right angle and the entrainment part is arranged at a right angle so as to be arranged between the inner surface of the packaging box and the packaged item, but the connecting plate is a thin plate. Therefore, the strength is not sufficient only by bending this.

  An object of this invention is to provide the buffer body with sufficient intensity | strength.

  The shock absorber according to the present invention has a columnar portion. The columnar portion is made of a foldable sheet, such as corrugated cardboard or cardboard, and is formed by being bent halfway so that the side surface thereof is L-shaped. Contact portions are provided at both ends of the columnar portion. Each contact portion has a contact surface that comes into contact with the packaged product.

  In the buffer body configured in this way, a columnar portion having a high strength is used instead of a plate-shaped body, and the columnar portion is bent from the middle to be L-shaped. Part of the columnar portion overlaps, further increasing the strength. Moreover, since it is formed into an L shape by bending, its manufacture is easy.

  The columnar portion may have a plate-like base wall. In this case, the base wall is provided with linear straight side edges parallel to each other with a gap therebetween. A pair of side walls are connected to the base wall. Specifically, the base end side edges of the pair of side walls are connected to both side edges of the base wall, and the front end side edges parallel to the base end side edges are located away from the base end side edges. The pair of side walls are located opposite to each other. A first fold line is provided across the one side wall from the front side edge of one side wall to the base side edge of the one side wall at a substantially right angle thereto. A second fold line is provided across the base wall from the base side edge of the one side wall to the base side edge of the other side wall at a substantially right angle thereto. A third fold line is provided across the other side wall from the base side edge of the other side wall to the front end side edge of the other side wall at a substantially right angle thereto. A fourth fold line is provided that obliquely crosses the one side wall from the vicinity of the intersection of the first and second fold lines to the leading edge of the one side wall. A fifth fold line is provided that crosses the other side wall substantially parallel to the fourth fold line from the vicinity of the intersection of the first fold line and the third fold line to the leading edge of the other side wall. The columnar portion is formed by valley-folding along first to third fold lines and mountain-folding along fourth and fifth fold lines with reference to the continuous surface of the pair of side walls and base wall. Has been.

  Alternatively, a base wall, a pair of side walls, and first to fifth fold lines are provided in the same manner as described above, and a mountain fold is formed along the first and third fold lines with reference to the connecting surface of the pair of side walls and the base wall. The columnar portion is formed by valley folding along the second fold line and valley folding along the fourth and fifth fold lines.

  With this configuration, a folded portion surrounded by the first fold line and the fourth fold line is formed on one side wall of the columnar portion, and the third fold line and the fifth fold line are formed on the other side wall. A folded portion surrounded by the line is formed. By folding the pair of side walls and the base wall by the first to third fold lines, a triple structure is formed in which the folded portions are interposed between the overlapping portions formed on the pair of side walls. Strength increases.

  Further, the pair of side walls may be configured to be substantially perpendicular to the base wall. By comprising in this way, the longitudinal cross-sectional shape before bending of a columnar part becomes a concave shape, and it can fold along the 1st thru | or 5th fold line easily.

  Each contact portion can be formed by bending a plate-like body formed at each end of the base wall. If comprised in this way, this buffer body in which the columnar part and two contact parts were formed in one can be manufactured only by the simple operation of bending one sheet, and the contact part and the columnar part can be manufactured. Its manufacture is easier compared to those formed separately and then combined.

  As described above, according to the present invention, a buffer having a high strength can be easily manufactured.

  As shown in FIG. 3, the shock absorber 2 according to the embodiment of the present invention includes a packaged product 6, such as an electrical product, in a paper container 4 such as a cardboard paper. This is to prevent and protect the packaged product 6 from moving in the paper container 4 by contacting the inner surface and the outer surface of the packaged product 6 respectively.

  As shown in FIGS. 1 and 2, the shock absorber 2 has a collapsible sheet, for example, a columnar section 10 made of cardboard or cardboard. As shown in FIG. 2, the columnar portion 10 has a substantially L-shaped side surface. As shown in FIG. 1, the columnar portion 10 has a plate-like, for example, rectangular base wall 12 and side walls 14 a and 14 b formed on both sides of the base wall 12. The side walls 14a and 14b have the same size and are plate-shaped, for example, rectangular. The base wall 12 and the side walls 14a and 14b are bent halfway to form the columnar portion 10.

  Contact portions 16a and 16b are integrally formed at both ends of the columnar portion 10, respectively. These contact portions 16 a and 16 b are also made of the same sheet as the columnar portion 10. These contact portions 16a and 16b have outer end walls 18a and 18b and inner end walls 20a and 20b that are substantially perpendicular to the base wall 12 and are spaced in parallel to each other. Contact walls 22a and 22b are provided so as to connect the outer end walls 18a and 18b and the inner end walls 20a and 20b. These contact walls 22a and 22b are in contact with the product 6 as shown in FIG. The two surfaces that are in contact with the contact walls 22a and 22b respectively coincide with two orthogonal outer peripheral surfaces of the packaged product.

  For example, as shown in FIG. 6, the buffer body 2 is formed by cutting a piece of corrugated paper or cardboard to form a cut body 24, and bending the cut body 24. FIG. 6 shows one surface of the cutting pair 24, for example, the inner surface. The cut body 16 has a columnar portion forming portion 26 in the center and plate-like portions such as contact portion forming portions 28a and 28b on both sides thereof.

  The columnar part forming part 18 has a base wall 12 at the center thereof. The base wall 12 has linear side edges 30a and 30b parallel to each other along the length direction on both sides thereof. Base side edge 32a, 32b of side wall 14a, 14b is continued to this side edge 30a, 30b. The side walls 14a and 14b have front end side edges 34a and 34b parallel to the base end side edges 32a and 32b at a distance from the base end side edges 32a and 32b. Engagement cuts 36a, 36b, 38a, 38b are formed from the distal side edges 34a, 34b to the middle side toward the proximal side edges 30a, 30b. The engagement notches 36a and 36b are formed at positions on the inner side by the width dimension W of the contact portion 16a from one end of the side walls 14a and 14b. Similarly, the engagement notches 38a and 38b are also formed on the other side of the side walls 14a and 14b. From the end of the contact portion 16b, a width dimension W of the contact portion 16b is formed at a position on the inner side.

  A first fold line such as, for example, from a suitable position of the distal side edge 34a of the side wall 14a, for example, from the center in the length direction, across the side wall 14a at a right angle to the side edge 34a to reach the proximal side edge 32a. A fold line 40 is formed. Continuing from the fold line 40, the base side 12 crosses the base wall 12 perpendicularly from the base side edge 32 a (one side edge 30 a of the base wall 12) to the other side edge 30 b of the base wall 12, that is, the side wall 14 b. A second fold line, for example, a fold line 42 is formed up to the proximal side edge 30b. From the other side edge 30b (base end side edge 32b of the other side wall 14b) of the base wall 12 across the other side wall 14b and continuing to the folding line 42, the tip side of the other side wall 14b A third fold line, for example, a fold line 44 is formed up to the edge 34b. These folding lines 40, 42 and 44 are on the same straight line.

  From the intersection of the fold line 40 and one side edge 30a of the base wall 12 (the base end side edge 32a of one side wall 14a) toward one end of the base wall 12, the fold line 40 and a predetermined angle, for example, A fourth fold line, for example, a fold line 46 is formed up to the front end side edge 34a so as to form 45 degrees. Similarly, from the intersection of the fold line 44 and the other side edge 30b of the base wall 12 (the base end side edge 32b of the other side wall 14b), in the same direction as the fold line 46, for example, one end of the base wall 12 A fifth fold line, for example, a fold line 48 is formed up to the front end side edge 34b so as to form a predetermined angle with the fold line 44, for example, 45 degrees.

  For convenience of explanation, a region of one side wall 14a surrounded by the fold lines 40 and 46 and a region of the other side wall 14b similarly surrounded by the fold lines 44 and 48 are respectively folded back portions 50a, 50b, a region from the fold line 46 to one end of the side wall 14a, and a region from the fold line 48 to one end of the side wall 14b are referred to as inner position portions 52a and 528b. The region to the end and the region from the fold line 44 to the other end of the side wall 14b are referred to as outer position portions 54a and 54b, respectively.

  The contact portion forming portion 28 a is connected to one end of the base wall 12 and has an outer end wall 18 a at one end of the base wall 12. The outer end wall 18 a is formed in a plate shape whose longitudinal edge is orthogonal to the base wall 12, for example, a rectangle, and both ends of the longitudinal edge protrude outward from the end of the base wall 12 by a predetermined length. It is in. The width dimension h of the outer end wall 18a is equal to the distance between the base end side edges 32a, 32b and the front end side edges 34a, 34b of the side walls 14a, 14b. A contact surface 22a is formed continuously with the outer end wall 18a, and a fold line 56a is formed at the boundary between the two. The contact surface 22a has the predetermined width dimension W described above. An inner end wall 20a having the same size as the outer end wall 18a is formed continuously with the contact surface 22a, and a fold line 58a is formed at the boundary between the inner end wall 20a and the contact surface 22a.

  Engagement cuts 60a and 62a are formed toward the base wall 12 from positions corresponding to both side edges 30a and 30b of the base wall 12 on the outer side edge of the inner end wall 22a. The depths of the engagement cuts 60a and 62a are selected to be equal to the depth d of the engagement cuts 36a and 36b. In addition, a long hole 64a is formed at the center of the outer end wall 18a, the contact surface 22a, and the inner end wall 20a across the fold lines 56a and 58a.

  The contact portion forming portion 28b is formed in line symmetry with the contact portion 28a with the folding lines 40, 42, and 44 as axes of symmetry. Accordingly, the corresponding parts are denoted by the same reference numerals with the suffix “a” replaced by “b”, and the description thereof is omitted.

  This buffer body 2 is assembled as follows, for example. First, as shown in FIG. 7, the side walls 14a and 14b are valley-folded with both side edges 30a and 30b of the base wall 12 (base end side edges 32a and 32b of the side walls 14a and 14b) as fold lines. Are substantially perpendicular to the base wall 12 and face each other. That is, the vertical cross-sectional shape is a concave shape. Thereby, the columnar part 10 before bending is formed. In the following, the terms valley fold and mountain fold are also used. These mountain fold and valley fold are the surfaces shown in FIG. 6 of the columnar portion forming portion 26 and the contact portion forming portions 28a and 28b, For example, it is based on the inner surface.

  Subsequently, as shown in FIG. 8, the outer end wall 18 a of one contact portion forming portion 28 a is valley-folded with one end of the base wall 12 as a fold line, and substantially perpendicular to the base wall 12. And in the same direction as the side walls 14a, 14b. Next, the contact wall 22a is valley-folded along the fold line 58a and positioned at a right angle to the outer end wall 18a and above the base wall 12. Then, the inner end wall 20a is valley-folded along the fold line 56a, and the inner end wall 20a is erected on the base wall 12 at a right angle to the contact wall 22a. At this time, the engagement cut 60a fits into the engagement cut 36a, the engagement cut 62a fits into the engagement cut 36b, and the inner end wall 20a is prevented from spreading. Thereby, the contact part 16a is formed. Similarly, the contact portion 16b is formed by folding the contact portion forming portion 28b.

  In this way, as shown in FIG. 9, the contact portions 16a and 16b are provided at both ends of the linear columnar portion 10, respectively. In this state, the folding lines 46, 48 are folded in a mountain, that is, the folding lines 40, 42, 44 are valley-folded while the folding portions 50a, 50b are folded back so as to be outside the side walls 14a, 14b. Thereby, as shown in FIG.1 and FIG.2, the side surface shape of the columnar part 10 becomes L shape. Thus, by bending along the fold lines 40, 42, 44, 46, 48, it is possible to easily form an L shape. Moreover, at this time, for example, the tip of the thumb of the left hand of the operator is positioned on the inner end wall 20a side across the long hole 64a, and the tip of the other finger of the left hand is on the outer surface side of the base wall 12 (shown in FIG. 1). The operator grips the contact portion 16a so that the contact portion 16b is positioned with the right hand so that the contact portion 12b approaches the contact portion 12a. By performing one operation of moving in the direction indicated by the arrow 9 in FIG. 9, it can be bent and bent easily.

  When folded in this way, as shown in FIG. 4, on the side walls 14a and 14b, the folded portions 50a and 50b overlap a part of the inner positions 52a and 52b, and the outer positions 54a and 50b overlap the folded portions 50a and 50b. A part of 54b overlaps to form a three-layer structure. Accordingly, the strength of the columnar portion 10 is sufficiently increased. Moreover, in this folded state, as shown schematically in FIG. 5, the folded portions 50a and 50b open to the outside of the side walls 14a and 14b as indicated by the arrow a with reference to the folding lines 46 and 48. As shown by the arrow b on the basis of the broken lines 40 and 44, the inner side walls 14a and 14b are opened. Both forces are antagonistic and cancel each other, and the folded-back portions 50a and 50b maintain the state in contact with the inner position portions 52a and 52b and the outer position portions 54a and 54b, and the columnar portion 10 is bent L-shaped. The state is maintained and the shape does not collapse naturally.

  In the above embodiment, the folding lines 46 and 48 are folded in a mountain and the folding lines 40, 42 and 44 are folded in a valley so that the folded parts 50a and 50b are located outside the inner position parts 52a and 52b. As shown in FIG. 10, the folding lines 46 and 48 are valley-folded, the folding lines 40 and 42 are mountain-folded, and the folding line 44 is folded so that the folded portions 50a and 50b are located inside the inner position portions 52a and 52b. You can also fold the valley.

  In the above-described embodiment, the columnar portion 10 is configured by the base wall 12 and the side walls 14a and 14b so that the vertical sectional shape of the columnar portion 10 is concave. However, other vertical sectional shapes such as a triangular shape are used. It can also be. In this case, however, the engagement cuts 60a, 60b, 62a, 62b of the contact portions 16a, 16b need to be inclined. In the above-described embodiment, the long holes 64a and 64b are provided in the contact portions 16a and 16b. In the above embodiment, the contact portions 16 a and 16 b are formed integrally with the columnar portion 10. However, in some cases, the contact portions 16 a and 16 b may be formed separately from the columnar portion 10 and attached to the columnar portion 10.

It is a perspective view of the buffer of one embodiment of the present invention. It is a side view of the buffer body of FIG. It is a figure which shows the use condition of the buffer body of FIG. It is sectional drawing which follows the AA line of FIG. FIG. 3 is a schematic end view taken along line BB in FIG. 2. It is an expanded view of the buffer body of FIG. It is a perspective view of the state which raised the side wall from the unfolded state of FIG. It is a perspective view of the state in the middle of assembling a contact part from the state of FIG. It is a perspective view of the state which assembled the contact part from the state of FIG. It is a figure which shows the modification of the buffer body of FIG.

Explanation of symbols

2 Buffer 10 Columnar part 12 Base wall 14a 14b Side wall 16a, 16b Contact part 18a 18b Outer end wall 20a, 20b Inner end wall 22a 22b Contact wall

Claims (5)

A columnar part formed by bending a foldable sheet so that the side surface is L-shaped;
Contact portions provided respectively at both ends of the columnar portion, each having a contact surface that contacts a packaged product,
Having a buffer. 2. The shock absorber according to claim 1, wherein the columnar portion includes a plate-like base wall in which linear side edges parallel to each other are provided at intervals, and a base side edge on the both side edges of the base wall. A distal end side edge parallel to the base end side edge, and a pair of side walls facing each other.
A first fold line crossing the one side wall from the front end side edge of the one side wall to the base end side edge of the one side wall at a right angle to the first fold line; A second fold line across the base wall at a substantially right angle to the base side edge and a crossing of the other side wall at a substantially right angle from the base side edge of the other side wall to the tip side edge of the other side wall A third fold line, a fourth fold line that obliquely crosses the one side wall from the vicinity of the intersection of the first and second fold lines to a leading edge of the one side wall, a first fold line, and a first fold line A fifth fold line that crosses the other side wall substantially parallel to the fourth fold line from the vicinity of the intersection with the third fold line to the tip side edge of the other side wall, and the pair of side walls and the base wall Folds along the first to third fold lines with reference to the continuous surface, and mountain folds along the fourth and fifth fold lines Te, damping body in the pillar portion is formed. 2. The shock absorber according to claim 1, wherein the columnar portion includes a plate-like base wall in which linear side edges parallel to each other are provided at intervals, and a base side edge on the both side edges of the base wall. A distal end side edge parallel to the base end side edge, and a pair of side walls facing each other.
A first fold line crossing the one side wall from the front end side edge of the one side wall to the base end side edge of the one side wall at a right angle to the first fold line; A second fold line across the base wall at a substantially right angle to the base side edge and a crossing of the other side wall at a substantially right angle from the base side edge of the other side wall to the tip side edge of the other side wall A third fold line, a fourth fold line that obliquely crosses the one side wall from the vicinity of the intersection of the first and second fold lines to a leading edge of the one side wall, a first fold line, and a first fold line A fifth fold line that crosses the other side wall substantially parallel to the fourth fold line from the vicinity of the intersection with the third fold line to the tip side edge of the other side wall, and the pair of side walls and the base wall Folds along the first and third fold lines, valley folds along the second fold line, and fourth and fourth And a valley fold along a fifth fold line, damping body in the pillar portion is formed.   4. The shock absorber according to claim 2, wherein the pair of side walls are positioned substantially perpendicular to the base wall.   4. The shock absorber according to claim 2, wherein each of the contact portions is formed by bending a plate-like member formed at each end of the base wall.

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