JP5109700B2 - Packing cushioning material - Google Patents

Description

  The present invention relates to a packing cushioning material, and more particularly to a packaging cushioning material for protecting an article from an external force when the article is stored in a box.

Conventionally, when various articles are packaged and transported in a box such as a cardboard box, a packing cushioning material for protecting the articles from impact during transportation has been interposed between the article and the inner surface of the box. ing. As a conventional cushioning material, one made of styrene foam has been used in many cases, but in recent years, a cushioning material made of corrugated cardboard has been widely used (for example, see Patent Document 1).
JP 2001-19049 A

  However, many of the conventional cardboard cushioning materials are designed in an optimal shape for each product, so there is a problem in versatility. It was necessary to produce a cushioning material. In addition, the simple shape and versatility have problems in strength and impact resistance, and cannot be used when packing precision equipment.

  Accordingly, an object of the present invention is to provide a packaging cushioning material that can be produced simply by bending a plate material having a predetermined shape, and that is excellent in strength and impact resistance and has versatility.

  In order to achieve the above object, a packaging cushioning material of the present invention is a packaging cushioning material formed by bending a plate material, and is a rectangular substrate having a pair of opposed long sides and a pair of opposed short sides. A pair of internal support members that are connected to each of the opposing long sides via a valley fold line, and an external support member that is connected to at least one of the short sides via a mountain fold line The inner support member includes a first valley fold line provided between the substrate, a second valley fold line parallel to the first valley fold line, the second valley fold line, and the first valley fold line. A pair of first inner surface plates respectively formed between the fold line, a pair of second inner surface plates respectively connected to the first inner surface plate via the second valley fold line, and one second inner plate An engagement protrusion that protrudes from the front edge of the face plate and has a third valley fold line in the middle, and the front edge of the other second inner surface plate An engagement receiving piece having an engagement protrusion insertion port through which the engagement protrusion in a state of protruding and protruding from the third valley fold line can be inserted, and the substrate includes both first valley fold lines. The engagement receiving piece can be inserted in an assembled state in which the inner side support member having the engagement receiving piece is folded at the first valley fold line and the second valley fold line at the center between them. An internal support member having a joint opening and having the engagement protrusion folds the first valley fold line and the second valley fold line, respectively, and is inserted into the engagement opening. In the assembled state in which the engagement projecting piece is inserted into the engagement projecting piece insertion opening of the engagement receiving piece and the third valley fold line is valley-folded, the third valley fold line is engaged by a restoring force in the anti-bending direction. The tip of the mating piece comes into contact with the inner periphery of the engaging projecting piece insertion port, and the tip of the engaging projecting piece engages with the inner circumference of the engaging opening to prevent it from coming off. In the assembled state of the holding member, the tip edges of the pair of second inner surface plates come into contact with one side surface of the substrate so that the second inner surface plates are orthogonal to each other, and the outer support member is provided between the substrate A first mountain fold line; a pair of second mountain fold lines that form two sides of an isosceles triangle with the first mountain fold line as a base; the pair of second mountain fold lines; and the first mountain fold line; An isosceles triangular first outer plate formed between the pair of second outer plates connected to the first outer plate via the second mountain fold line, and both the second outer plates A cut portion cut into an isosceles triangle shape with the apex of the first outer plate as the apex, and a tip portion of each outer edge on the counter cut portion side of each second outer plate from the tip portion to the anti cut portion side, respectively Each outer end edge on the side of the anti-removal part of each of the second outer plates is on the side of the anti-removal part with respect to the extension line of the first valley fold line A pair of locking projections into which the locking projection pieces are inserted in an assembled state in which the first mountain fold line and the second mountain fold line are folded. The outer edge of the second outer plate abuts against the other side surface of the substrate in the assembled state of the external support member provided with a single insertion port, and each locking projection piece inserted into each locking projection piece insertion port. The two outer surface plates are in a state of being orthogonal to each other.

  Furthermore, the cushioning material for packing according to the present invention is characterized in that the external support member is connected to the other short side of the substrate via a mountain fold line, and the plate material is a corrugated board. The flute of the corrugated board is arranged in a direction perpendicular to the long side of the substrate.

  According to the cushioning material for packing of the present invention, the cushioning material can be assembled simply by punching the plate material into a predetermined shape, forming a folding line at a predetermined position, and bending the plate material in a predetermined direction along the folding line. In the assembled state, a corner-like surface whose inside is a right angle is formed on one side of the substrate, and a corner-like ridge line whose outside is a right angle is formed on the other side. Therefore, by bringing the outer corner line of the protruding corner into contact with the corner of the packaging box, and by bringing the corner-shaped surface into contact with the corner of the article, various articles, in particular, through the packing cushioning material, A rectangular parallelepiped article can be reliably held in the box. Moreover, since it becomes one plate shape by developing in reverse order after use, it can be reused efficiently.

  In addition, by providing external support members on both short sides of the substrate, the protruding corner ridge lines are formed at two locations on both ends of the other side surface of the substrate, so that the strength and impact resistance of the cushioning material can be improved. it can. As the plate material, foldable corrugated cardboard, cardboard, synthetic resin sheet, etc. can be used, but corrugated cardboard, especially W flute corrugated cardboard is used as the plate, and the direction of the flute is set to the length of the substrate. By making the direction perpendicular to the side, the strength and impact resistance of the cushioning material can be further enhanced. In addition, when an excessive impact is received, the shock can be absorbed by a part of the cushioning material being deformed.

  FIG. 1 to FIG. 11 show an example of the cushioning material for packing according to the present invention, FIG. 1 is a perspective view showing a state before assembly, and FIG. 2 shows a state where an inner plate having an engagement receiving piece is bent. FIG. 3 is a perspective view showing a state in which the inner plate having the engaging protrusion is being bent, FIG. 4 is a perspective view of the inner plate bent from the bottom side, and FIG. 5 is a bent outer plate. FIG. 6 is a perspective view showing the assembled state, FIG. 7 is a partially sectional front view showing the direction of the flute on the outer plate, and FIG. 8 is the assembled packing cushioning material. 9 is a bottom view of the assembled packing cushioning material, FIG. 10 is a side view of the assembled packing cushioning material, FIG. 11 is a sectional side view of the assembled packaging cushioning material, and FIG. It is a perspective view which shows the usage example of material. FIG. 13 is a perspective view showing another embodiment of the packing cushioning material of the present invention.

  The packing cushioning material 11 is formed by bending a corrugated cardboard plate 12 having a predetermined shape at a predetermined position in a predetermined direction. The packing cushioning material 11 faces the rectangular substrate 13 when the packing cushioning material 11 is used. It has a pair of internal support members 15 and 15 for supporting the article 14 and a pair of external support members 17 and 17 that face the outside and contact the inner corners of the packaging box 16.

  The inner support members 15 are connected to the opposing long sides of the substrate 13 via valley fold lines, respectively, and first valley fold lines 21a and 21b provided between the substrate 13 and the first A second valley fold line 22a, 22b parallel to the first valley fold line 21a, 21b, and a pair of first fold lines formed between the second valley fold line 22a, 22b and the first valley fold line 21a, 21b, respectively. One inner surface plates 23a, 23b, a pair of second inner surface plates 24a, 24b connected to the first inner surface plates 23a, 23b via the second valley fold lines 22a, 22b, respectively, and one second inner surface plate 24a, the projecting protrusions 26, 26 respectively projecting from the two leading edge edges 24a, and having the third valley fold line 25 in the middle, respectively, and the engaging projecting pieces 26, 26 from the leading edge of the other second inner surface plate 24b. It protrudes to a position corresponding to each of the 26 protruding positions, and the front The third engagement projecting piece 26 in a state in which the valley fold line 25 and valley fold has an engagement receiving piece 28 at two positions having an insertion engagement protrusion insertion hole 27, respectively.

  Further, at the central portion in the width direction of the substrate 13, that is, at the central portion between the first valley fold lines 21a and 21b, two locations corresponding to the protruding positions of the engagement protrusion piece 26 and the engagement receiving piece 28 are provided. The engagement projection piece in which the length in the long side direction is such that the engagement receiving piece 28 can be inserted at the position, and the dimension (width dimension) in the short side direction is the third valley fold line 25 folded. An engaging opening 29 is formed so that 26 can be inserted. Further, a notch groove 29 a having an opening width corresponding to the dimension of the engagement protrusion 26 in the long side direction of the substrate is provided on the side of the engagement opening 29 opposite to the engagement protrusion 26.

  The dimensions (width dimensions) of the first inner surface plates 23a, 23b and the second inner surface plates 24a, 24b in the inner side support member 15 in the short side direction of the substrate are the first valley fold lines 21a, 21b and the second valley fold lines 22a, 22b is respectively folded, and the engaging protrusions 26 and the engaging receiving pieces 28 are inserted into the engaging openings 29, and the leading edges of the second inner surface plates 24a and 24b are brought into contact with one side surface of the substrate 13, respectively. In this state, the second inner surface plates 24a and 24b are set to be orthogonal to each other, that is, the angle between the surfaces of the second inner surface plates 24a and 24b contacting the corners of the article 14 is set to be a right angle.

  The external support member 17 is formed in a line-symmetric shape with respect to the substrate center line in the short side direction and in a line-symmetric shape with respect to the substrate center line in the long side direction. A pair of second mountain fold lines 32 that form two sides of an isosceles triangle having an apex angle smaller than 90 degrees with the first mountain fold line 31 as a base. 32, an isosceles triangular first outer surface plate 33 formed between the pair of second mountain fold lines 32, 32 and the first mountain fold line 31, and the first outer surface plate 33 includes the first A pair of second outer surface plates 34, 34 connected in series via two-fold fold lines 32, 32, and a vertex 33 a of the first outer surface plate 33 between the second outer surface plates 34, 34 are apexes. A cut-out portion 35 cut into an isosceles triangle shape and the tip of each outer end edge 34a on the side opposite to the cut-out portion of each second outer surface plate 34, 34 And a locking protrusion 36 which projects respectively outward of the anti-cutout side from parts. Further, the outer edge 34a of the second outer surface plate 34 is formed in a state of expanding outwardly on the side opposite to the cut away portion with respect to the extension line of the first valley fold line 21a. The board 13 is provided with locking protrusion insertion holes 37 for inserting the locking protrusions 36 during assembly.

  The shape of the first outer surface plate 33 and the second outer surface plate 34 is such that the first mountain fold line 31 and the second mountain fold line 32 are mountain-folded, and the locking projection piece 36 is inserted into the locking projection piece insertion port 37, respectively. In the assembled state, the outer edge 34a of the second outer surface plate 34 comes into contact with the other side surface of the substrate 13 and the inner end edges 34b of the second outer surface plate 34 come into contact with each other. The tilted state falls toward the substrate side. At this time, the packing cushioning material 11 in an assembled state is seen from the side when the second mountain fold lines 32 and 32 and the first mountain fold line 31, which are two sides sandwiching the apex of the isosceles triangle of the first outer surface plate 33. The first fold line 31 is a right-angled isosceles triangle, and the second outer surface plates 34 that are continuous with the second fold line 32 are perpendicular to each other. In addition, the punching part 38 for improving a bendability is provided in the both ends of the 1st mountain fold line 31 and the 2nd mountain fold line 32. As shown in FIG.

  As shown in FIG. 1, in order to assemble the packing cushioning material 11 from a corrugated board 12 that is cut into a predetermined shape, formed with folding lines at predetermined positions, and punched out at predetermined positions to form openings. 2, the first inner surface plate 23b and the second inner surface plate 24b on which the engagement receiving piece 28 is provided are valley-folded at the first valley fold line 21b and the second valley fold line 22b, and engaged. The receiving piece 28 is inserted into the engaging opening 29 and the leading edge of the second inner surface plate 24 b is brought into contact with one side surface of the substrate 13.

  Next, as shown in FIG. 3, the first inner surface plate 23a and the second inner surface plate 24a on which the engagement protrusions 26 are provided are valley-folded at the first valley fold line 21a and the second valley fold line 22a. At the same time, the third valley fold line 25 of the engaging protrusion 26 is folded, and the engaging protrusion 26 in the valley-folded state is engaged with the engaging protrusion insertion port 27 and the engaging opening 29 of the engagement receiving piece 28. The tip edge of the second inner surface plate 24a is brought into contact with one side surface of the substrate 13. At this time, the outer surface of the engagement protruding piece 26 in a state where the third valley fold line 25 is folded is inserted in a state of being in sliding contact with the inner peripheral edge of the engagement opening 29 by the restoring force of the bent portion. When the protruding piece 26 is inserted to a predetermined position, the outer surface of the engaging protruding piece 26 is restored from the inner peripheral edge of the engaging opening 29 so that it can be repelled toward the inner peripheral edge of the engaging protruding piece insertion port 27. A sound is generated when the outer surface of the engaging protrusion 26 hits the inner peripheral edge of the engaging protrusion insertion port 27, so that it can be surely known that the engaging protrusion 26 has been inserted to a predetermined position. In addition, after engaging engagement piece 26 is inserted into engagement protrusion piece insertion port 27 without performing valley fold of 3rd valley fold line 25, it is engaged state visually by making 3rd valley fold line 25 fold. May be confirmed.

  As shown in FIG. 4, the engagement protrusion 26 inserted into the engagement protrusion insertion port 27 of the engagement receiving piece 28 is fitted on the notch groove 29a of the engagement opening 29 on the opposite surface of the substrate. The engaging protrusion 26 is positioned in the longitudinal direction of the substrate by the protrusion and fitting with the notch groove 29a. Further, the engagement receiving piece 28 is inserted into the engagement opening 29 and the engagement projection piece 26 is inserted into the engagement projection piece insertion port 27, whereby positioning in the longitudinal direction of the substrate is performed. These engagements prevent displacement of the inner support member 15 in the longitudinal direction of the substrate, and the distal end of the engagement protrusion 26 by the restoring force in the counter-bending direction of the third valley fold line 25 that has been valley-folded. As shown in FIG. 11, the distal end portion of the engagement protrusion 26 abuts on the inner periphery of the engagement protrusion insertion hole 27, thereby restoring the force. In addition to restricting the return, at the same time, the front end of the engagement protrusion 26 engages with the inner periphery of the engagement opening 29 to prevent it from coming off, so that the inner support member 15 has a W-shape when viewed from the side. It is held in an assembled state. In addition, since the end edges of the second inner surface plates 24a and 24b are in contact with each other on one side surface of the substrate 13, sufficient strength can be obtained against external force in the crushing direction.

  On the other hand, as shown in FIG. 5, the outer side support member 17 folds the first mountain fold line 31 and the second mountain fold line 32, and attaches the locking protrusions 36 protruding from the second outer surface plate 34 to the substrate 13. The outer edge 34 a of the second outer surface plate 34 is brought into contact with the other side surface of the substrate 13. At this time, since the locking protrusion 36 is inserted into the locking protrusion insertion port 37 in an inclined state with respect to the substrate surface, the anti-bending direction of the second mountain fold line 32 that is folded in a mountain Thus, the locking projection piece 36 is prevented from coming off from the locking projection piece insertion port 37. Thereby, the engagement state of the latching protrusion piece 36 and the latching protrusion piece insertion port 37 is maintained, and the outer side support member 17 is hold | maintained at an assembly state.

  In this way, the inner support member 15 is bent to one side surface of the substrate 13, and the engagement protrusions 26 and the engagement receiving pieces 28 are inserted into the engagement protrusion insertion holes 27 to be engaged, and the outer support member 17. The packing cushioning material 11 having the shape shown in FIGS. 6 to 11 can be assembled by bending the base plate 13 to the other side surface and inserting and engaging the locking projection piece 36 into the locking projection piece insertion port 37. it can. And, it is only necessary to bend the corrugated board 12 along the folding line without using an adhesive or a tool when assembling the cushioning material 11 for packing, or using other reinforcing members, etc. The packaging cushioning material 11 can be easily assembled, and the flat plate shape shown in FIG. 1 can be very easily developed from the assembled state.

  Furthermore, when the corrugated board 12 is used as a board, and the flute of the corrugated board 12 is arranged in a direction orthogonal to the long side of the substrate 13, the packaging cushioning material 11 is used when assembled and used. The internal support member 15 can receive an impact generated between the packing box 16 and the flute in the axial direction of the flute, and the first outer surface plate 33 and the second outer surface plate 34 can be prevented from being buckled and deformed by an external force. . Further, in the outer side support member 17, the first outer surface plate 33 is inclined toward the substrate side, and the expansion angle of the outer edge 34a of the second outer surface plate 34 with respect to the extension line of the first valley fold line 21a. 7, the direction of the flute F in the second outer surface plate 34 can be brought close to the direction orthogonal to the substrate surface, as shown in FIG. 7, and the second outer surface plate 34 is seated by the external force W. It can prevent bending deformation as much as possible. Furthermore, since the engaging protrusion 26 also receives a force in the direction of coming off in the direction of the flute, it is possible to prevent the engaging protrusion 26 from being deformed and loosened.

  The packing cushioning material 11 formed in this way has the surfaces of the second inner surface plates 24a and 24b of the inner side support members 15 and 15 bent in a W-shape to be cornered right-angled surfaces. The support members 17 and 17 are formed with right-angled ridge lines in the shape of the second mountain fold lines 32 and 32 of the second outer surface plates 34 and 34, respectively. As shown in FIG. 14, the second inner surface plates 24 a and 24 b are brought into contact with the corner portions (ridge portions) 14 a, respectively, and the ridge lines of the second mountain fold lines 32 and 32 of the second outer surface plates 34 and 34 are used as the inner surface of the packaging box 16. By storing the article 14 in the packaging box 16 in contact with the corner 16a, the stored article 14 can be supported by the packaging cushioning material 11 made of cardboard, and the packaging box 16 added during transportation. The article 14 can be protected from impacts on the surface. Furthermore, when receiving an excessive impact caused by dropping of the packing box 16 or the like, each part of the cushioning material 11 for packing is appropriately deformed to absorb the impact and reduce the acceleration received by the article 14. It is possible to prevent or minimize the damage of the article 14 against a large impact caused by dropping or the like.

  Further, since the packing cushioning material 11 has a simple shape in which the inner side is a right angle shape with an inward corner and the outer side is a right angle shape with an outer corner, the packing material 11 is packed according to the size of the article 14 or the packing box 16. By using a plurality of cushioning materials 11 at appropriate positions, it has versatility that can be used for packing various articles, and is optimal for packing articles for high-mix low-volume production. Furthermore, the packing material 11 for packing after use can be easily developed into a flat plate shape, the volume at the time of recovery can be reduced, and it can be efficiently recovered and reused, The cost required for transporting the article can be reduced.

  In addition, by appropriately setting the size of the substrate 13, various sizes of cushioning materials for packing can be manufactured. Further, in this embodiment, the external support members 17 are provided on both of the opposing short sides of the substrate 13 via the first mountain fold line 31, respectively. However, as shown in FIG. Can be a cushioning material for packing in which the outer support member 17 is provided only on one short side. In FIG. 13, the same components as those in the cushioning material 11 for packing shown in FIGS. 1 to 12 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In addition, each folding line can have an appropriate structure according to the material and structure of the plate material to be used, and can be cut on one side of the plate, compressed from one side of the plate, or compressed from both sides. Can be formed. In the case of a W flute corrugated board, it is preferable to cut the A flute in consideration of bendability. Furthermore, punched holes and slits of an appropriate shape for improving the bendability can be formed in each fold line portion.

It is a perspective view of the state before the assembly which shows one example of the cushioning material for packing of this invention. It is a perspective view which shows the state which bent the inner surface board which has an engagement receiving piece. It is a perspective view which shows the state in the middle of bending of the inner surface board which has an engagement protrusion. It is the perspective view which looked at the state which bent the inner surface board from the bottom face side. It is the perspective view seen from the bottom face side which shows the state which bent the outer surface board. It is a perspective view of the cushioning material for packing which shows the state after an assembly. It is a partial cross section front view which shows the direction of the flute in an outer surface board. It is a top view of the assembled cushioning material for packing. It is a bottom view of the assembled cushioning material for packing. It is a side view of the assembled cushioning material for packing. It is a cross-sectional side view of the assembled cushioning material for packing. It is a perspective view which shows the usage example of the shock absorbing material for packing. It is a perspective view which shows the other example of a cushioning material for packing of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Packing cushioning material, 12 ... Corrugated board, 13 ... Board | substrate, 14 ... Goods, 15 ... Inner side support member, 16 ... Packing box, 17 ... Outer side support member, 21a, 21b ... 1st trough fold line, 22a , 22b: second valley fold line, 23a, 23b ... first inner surface plate, 24a, 24b ... second inner surface plate, 25 ... third valley fold line, 26 ... engagement protrusion, 27 ... engagement protrusion insertion port 28 ... engagement receiving piece 29 ... engagement opening 29a ... notch groove 31 ... first mountain fold line 32 ... second mountain fold line 33 ... first outer surface plate 33a ... vertex 34 ... first 2 outer surface plate, 34a ... outer edge, 34b ... inner edge, 35 ... removal part, 36 ... locking protrusion, 37 ... locking protrusion insertion port, 38 ... punching part

Claims (3)

  A cushioning material for packaging formed by bending a plate material, which is connected to each of the opposing long sides of a rectangular substrate having a pair of opposing long sides and a pair of opposing short sides via a valley fold line. A pair of internal support members, and an external support member that is connected to at least one of the short sides via a mountain fold line, and the internal support member is provided between the substrate and the substrate. A first valley fold line, a second valley fold line parallel to the first valley fold line, and a pair of first inner surface plates formed between the second valley fold line and the first valley fold line, respectively. And a pair of second inner surface plates respectively connected to the first inner surface plate via the second valley fold line, and a third valley fold line projecting from the tip edge of one second inner surface plate at the intermediate portion. The engagement protrusion provided and the engagement in a state where the third valley fold line protrudes from the tip edge of the other second inner surface plate and the third valley fold line is folded. An engagement receiving piece having an engagement protrusion insertion port through which the piece can be inserted, and an inner side having the engagement receiving piece at a central portion between both first valley fold lines on the substrate The support member has an engagement opening into which the engagement receiving piece can be inserted in an assembled state where the first valley fold line and the second valley fold line are folded, and has an engagement protrusion. The member folds the first valley fold line and the second valley fold line, respectively, and the engagement projecting piece at the engagement projecting piece insertion port of the engagement receiving piece inserted into the engagement opening. In the assembled state in which the third valley fold line is folded and the third valley fold line is folded back, the distal end portion of the engagement protrusion comes into contact with the inner periphery of the engagement protrusion insertion port by the restoring force in the anti-bending direction of the third valley fold line. The tip of the engagement protrusion engages with the inner periphery of the engagement opening to prevent it from coming off, and the tip edges of the pair of second inner surface plates are based on the assembled state of the inner support member. The second inner surface plates are in a state of being orthogonal to each other, and the outer support member has a first mountain fold line provided between the substrate and the first mountain fold line. A pair of second mountain fold lines that form two sides of an equilateral triangle; an isosceles triangle-shaped first outer plate formed between the pair of second mountain fold lines and the first mountain fold line; A pair of second outer surface plates respectively connected to the first outer surface plate via the second mountain fold line, and an isosceles triangle between the second outer surface plates with the vertex of the first outer surface plate as a vertex. Each of the second outer plates has a cut portion that has been cut into a shape, and a locking protrusion that protrudes from the tip of each outer edge of the second outer plate on the side of the anti-cut portion to the side of the anti-cut portion. Each outer edge on the side of the anti-removal part is formed in a state of expanding toward the side of the anti-resection part with respect to the extension line of the first valley fold line, and the substrate includes the first edge A pair of locking projection pieces insertion holes into which the respective locking projection pieces are inserted in an assembled state in which the mountain fold line and the second mountain fold line are folded are provided, For packaging, wherein the outer edge of the second outer plate abuts against the other side surface of the substrate and the second outer plates are orthogonal to each other in the assembled state of the outer support member into which the stop protrusion is inserted. Cushioning material.   The packing cushioning material according to claim 1, wherein the external support member is connected to the other short side of the substrate via a mountain fold line.   The packing cushioning material according to claim 1 or 2, wherein the plate material is a corrugated board, and the flutes of the corrugated board are arranged in a direction perpendicular to the long side of the substrate.

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