JP5172581B2 - Corrugated cushioning material and packaging material - Google Patents

Description

  The present invention relates to a corrugated cushioning material and a packaging material for protecting an article to be packaged during transportation and storage.

  Conventionally, as a corrugated cardboard cushioning material for protecting an article to be packaged during transportation and storage, for example, the one described in Patent Document 1 is known. The cushioning material made of corrugated cardboard of Patent Document 1 is composed of a single (one) corrugated cardboard, and receives all the surfaces (sixth surface) of the article to be packaged by the bottom wall, the side wall, and the top plate, and absorbs the shock. .

JP 2001-19051 A

  However, although the corrugated cushioning material described in Patent Document 1 is easy to assemble, there is a concern that the shock absorption capacity is insufficient when the packaged item is heavy. In addition to the corrugated cardboard cushioning material disclosed in Patent Document 1, various types of corrugated cardboard cushioning materials capable of absorbing the impact of all the surfaces (six sides) of the packaged object have been proposed. However, in order to obtain a sufficient buffering effect, the structure is complicated, and there is a problem that the assembly work of the buffering material is complicated.

  Therefore, the main object of the present invention is a cardboard made of a single cardboard, capable of obtaining a sufficient cushioning effect on all surfaces of the package, and having a simple structure and easy assembling work. It is to provide a cushioning material and a packaging material including the cardboard cushioning material.

  The invention according to claim 1 is a substantially rectangular bottom plate portion made of a single corrugated cardboard, four side frame portions respectively provided on the outer peripheral portion of the bottom plate portion, and an upper plate portion continuously provided on the upper portion of the side frame portion. And has a pair of feet that are connected to the bottom plate, the sides of the foot are bent, and nails provided on both sides of the foot are provided in the bottom plate. The cardboard cushioning material is characterized in that the foot portion is locked to the lower surface of the bottom plate portion by being inserted into the bottom plate portion.

  In the invention of claim 1, the pair of feet locked to the lower surface of the bottom plate exhibits a shock absorbing action. Since the pair of foot portions are connected to the bottom plate portion, a separate member is not required and a single cardboard can be used. Further, since the foot portion can be formed simply by bending the portion continuously provided on the bottom plate portion and then inserting the claws provided on both sides thereof into the insertion holes provided on the bottom plate portion, the assembling work is easy.

  The invention according to claim 2 is an invention dependent on the invention according to claim 1, characterized in that the corrugated direction of the cardboard of the foot is parallel to the bottom plate, is there.

  In the invention of claim 2, the step direction of the cardboard of the foot is set parallel to the bottom plate portion, and the impact is absorbed by crushing the cardboard of the foot in the step direction. Here, the cardboard has a property of being easily crushed in the direction of the step, but by bending both sides of the foot, the foot can secure an appropriate strength.

  The invention according to claim 3 is a substantially rectangular bottom plate portion made of a single corrugated cardboard, four side frame portions respectively provided on the outer peripheral portion of the bottom plate portion, and an upper plate portion continuously provided on the upper portion of the side frame portion. And the four side frame portions comprise a pair of first side frame portions and a pair of third side frame portions and fourth side frame portions facing the second side frame portions, and a third side frame portion And the fourth side frame part, a side plate part obtained by bending the first side plate extending from the ends of the first side frame part and the second side frame part, respectively, and overlapping them, and the first side frame part and the second side frame part. The horizontal plate portion is formed by bending the second side plates extending from the ends of the side frame portions inwardly and overlapping each other, and the horizontal plate portions are formed by cutting the first side plate into the first side frame portion and the second side frame portion. A cushioning material made of cardboard, characterized in that it is locked to the protrusions provided.

  In the invention of claim 3, the side plate portions of the third side frame portion and the fourth side frame portion face each other to receive both end faces of the package, and the third side frame portion and the fourth side frame portion are horizontal. The plate part exhibits an impact absorbing function. These side plate portions and horizontal plate portions are formed by bending the first side plate and the second side plate respectively extending from the ends of the first side frame portion and the second side frame portion, so that a separate member is newly required. Instead, it can be done with a single cardboard. In addition, the side plate portion can be formed simply by folding the first side plate inwardly and overlapping, and the horizontal plate portion is folded on the second side plate inwardly and then overlapped, and then the first side frame portion and the second side frame portion respectively. Since it can be formed simply by being locked to the provided projection, the assembling work is easy.

  The invention according to claim 4 is an invention dependent on the invention according to claim 3, wherein the step direction of the corrugated cardboard of the horizontal plate portion is in a direction in which the first side frame portion and the second side frame portion face each other. A cushioning material made of corrugated cardboard, characterized by being parallel to each other.

  In the invention of claim 4, the step direction of the corrugated cardboard of the horizontal plate portion is set in parallel to the direction in which the first side frame portion and the second side frame portion face each other, and the corrugated cardboard is set in the step direction. By crushing, the impact is absorbed. Here, the corrugated board has a property of being easily crushed in the direction of the corrugation, but by overlapping the two second side plates, the horizontal plate portion can ensure an appropriate strength.

  The invention according to claim 5 is an invention dependent on the invention according to claim 3 or claim 4, wherein the bottom plate portion has a pair of feet connected to the bottom plate, and both sides of the feet are bent. A cardboard cushioning material characterized in that the nail provided on both sides of the foot is inserted into the insertion hole provided in the bottom plate and the foot is locked to the lower surface of the bottom plate. .

  In the invention of claim 5, the third side frame portion and the fourth side frame portion absorb the impact force applied to both end surfaces of the packaged object, and the pair of foot portions locked to the lower surface of the bottom plate portion are covered. Absorbs the impact force applied to the bottom of the package.

  The invention according to claim 6 is an invention dependent on the invention according to any one of claims 3 to 5, wherein the first side frame portion and the second side frame portion are each in a cylindrical shape, and the bottom plate portion A corrugated cardboard cushioning material, wherein the third side plate is provided by being folded.

  In invention of Claim 6, the impact force added to the both sides | surfaces of a to-be-packaged item is absorbed by deform | transforming the cylinder side 1st side frame part and 2nd side frame part.

  The invention according to claim 7 is an invention dependent on the invention according to any one of claims 3 to 6, wherein the upper plate portion is a shape that supports the packaged object from above, and is an upper portion of the side frame portion. A cushioning material made of corrugated cardboard, wherein the upper plate is formed by bending a notch.

  In the invention of claim 7, the upper plate portion absorbs the impact force applied to the upper surface of the packaged object.

  The invention according to claim 8 is a packaging material comprising an outer box, and the cardboard cushioning material according to any one of claims 1 to 5 housed in the outer box. is there.

  In the invention of claim 8, a packaging material can be obtained which can stably protect the package from impact and can be easily assembled.

  According to the present invention, a corrugated cardboard cushioning material can be made from a single corrugated cardboard, and a sufficient cushioning effect can be obtained with respect to an article to be packaged, and assembling work is facilitated.

  The above-described object, other objects, features, and advantages of the present invention will become more apparent from the following description of the best mode for carrying out the invention with reference to the drawings.

  FIG. 1 is an external perspective view showing an example of a cardboard cushioning material according to the present invention, and FIG. 2 is an external perspective view of the cardboard cushioning material as viewed from below. This corrugated cardboard cushioning material has a substantially square bottom plate portion 1, four side frame portions 2, 3, 4, 5 provided on the outer peripheral portion of the bottom plate portion 1, and upper portions of the side frame portions 2, 3. And an upper plate portion 6 provided continuously.

  The details of the cardboard cushioning material will be described below together with an example of its assembly procedure. FIG. 3 is a development view of the cardboard cushioning material. The cardboard cushioning material is formed integrally by cutting a single (one) cardboard and is made of paper cardboard, plastic cardboard, or the like. A substantially rectangular bottom plate 1 is disposed at the center of the corrugated cardboard cushioning material. Around the bottom plate 1, the first side frame 2, the second side frame 3, the third side frame 4, The 4-side frame portion 5 and the upper plate portion 6 are provided continuously. In addition, the step direction of the cardboard is set to be parallel to the X direction. In FIG. 3, the hatched portion indicates a portion that has been punched and penetrated.

  First, a pair of foot portions 10a and 10b connected to the two short sides of the substantially square bottom plate portion 1 is assembled. That is, a pair of substantially square-shaped feet 10 a and 10 b with two corners cut out is folded along a crease line 16 a and bent 90 degrees on the back side of the bottom plate 1. Next, both side portions 12 of the foot portions 10a and 10b are mountain-folded along the crease line 16b and bent as shown in FIG. FIG. 4 is a perspective view of the cardboard cushioning material shown in FIG. Further, by inserting the claws 14 provided on both side portions 12 of the foot portions 10a and 10b into the insertion holes 1a provided in the bottom plate portion 1, the foot portions 10a and 10b are locked to the lower surface of the bottom plate portion 1. The

  The pair of feet 10a and 10b exhibits an impact absorbing function. Since the foot portions 10a and 10b are connected to the bottom plate portion 1, a separate member is not required and a single cardboard can be used. Further, the foot portions 10a and 10b can be assembled by simply bending the claws 12 provided on both side portions 12 into the insertion holes 1a provided on the bottom plate portion 1 after being bent along the crease lines 16a and 16b. As a result, assembly work is easy.

  Further, since the corrugated direction of the corrugated cardboard of the feet 10a and 10b is parallel to the bottom plate part 1, an excellent impact absorbing effect can be obtained by crushing the corrugated cardboard in the corrugated direction. In FIG. 4, the direction of the step D is displayed by cutting out the center portion of the foot portion 10 a. Here, the corrugated cardboard has a property of being easily crushed in the step direction, but by bending the both side portions 12 of the foot portions 10a and 10b, the foot portions 10a and 10b ensure an appropriate mechanical strength.

  Next, as shown in the development view of FIG. 3, a pair of opposing first side frame portion 2 and second side frame portion 3 that are connected to the two long sides of the bottom plate portion 1 respectively, and the bottom plate portion 1. A pair of opposing third side frame part 4 and fourth side frame part 5 respectively arranged on the two short sides are assembled.

  That is, the first side frame portion 2 is valley-folded along the crease lines 26a, 26b, 26c, and 26d, bent to the bottom plate portion 1 side, and folded into a barrel shape having a square cross section as shown in FIG. FIG. 5 is a perspective view of the cardboard cushioning material as seen from the fourth side frame portion 5 side. Next, as shown in FIG. 6, the substantially inverted trapezoidal claw 1 b disposed on the bottom plate portion 1 is cut and raised to form a substantially semicircular engagement formed at the distal end portion of the first side frame portion 2. Insert into the blind hole 24. As a result, the barrel-shaped first side frame portion 2 is locked to the upper surface on one long side of the bottom plate portion 1. At this time, the first upper plate 60 constituting the upper plate portion 6 cuts up part of the outer frame plate 20 and the inner frame plate 22 in the process of forming the first side frame portion 2 in a cylindrical shape. Is formed automatically.

  Similarly, after the second side frame portion 3 is valley-folded along the crease lines 36a, 36b, 36c, and 36d (see FIG. 3), and is folded into a barrel shape having a square cross section as shown in FIG. Then, the substantially inverted trapezoidal claw 1 b disposed in the bottom plate portion 1 is cut and raised and inserted into a substantially semicircular locking hole 24 formed at the distal end portion of the second side frame portion 3. As a result, the barrel-shaped second side frame portion 3 is locked to the upper surface of the other long side of the bottom plate portion 1. At this time, the second upper plate 62 constituting the upper plate portion 6 cuts up part of the outer frame plate 30 and the inner frame plate 32 in the process of forming the second side frame portion 3 in a cylindrical shape. Is formed automatically.

  This pair of opposing first side frame portion 2 and second side frame portion 3 absorbs the impact force applied to both side surfaces of the package. Since the 1st side frame part 2 and the 2nd side frame part 3 are provided in a row by the baseplate part 1, a separate member is not newly required and it can be made with a single cardboard. Moreover, since the 1st side frame part 2 and the 2nd side frame part 3 can be assembled only by bend | folding along the crease lines 26a-26d and 36a-36d, and it makes a cylinder shape, assembly work is easy. . Moreover, since the 1st side frame part 2 and the 2nd side frame part 3 are trunk | drum cylinder shape, the outstanding impact absorption effect is acquired by deform | transforming a trunk | drum cylinder shape.

  Next, the third side frame portion 4 is assembled. As shown in FIG. 8, trapezoidal first side plates 40a and 40b extending from one end of the inner frame plates 22 and 32 of the first side frame portion 2 and the second side frame portion 3 are fold lines 44a. , 44c (see FIG. 3), the side plate portion 40 is formed by folding inward and overlapping. At this time, the protrusions 22a and 32a protruding from one end of the inner frame plates 22 and 32 are automatically formed by cutting up part of the first side plates 40a and 40b, respectively.

  Next, as shown in FIG. 9, the substantially rectangular second side plates 42 a and 42 b respectively extending from one end of the outer frame plates 20 and 30 of the first side frame portion 2 and the second side frame portion 3. Then, the horizontal plate portion 42 is formed by folding inwardly along the crease lines 44b and 44d (see FIG. 3) and overlapping. At this time, as shown in FIG. 1, the horizontal plate portion 42 is engaged with the protrusion 22 a provided on the first side frame portion 2 and the protrusion 32 a provided on the second side frame portion 3.

  Similarly, the fourth side frame portion 5 is assembled. As shown in FIG. 10, trapezoidal first side plates 50a and 50b extending from the other ends of the inner frame plates 22 and 32 of the first side frame portion 2 and the second side frame portion 3, respectively, are fold lines 54a. , 54c (see FIG. 3), the side plate portion 50 is formed by being folded inward and overlapped. At this time, the protrusions 22b and 32b protruding from the other ends of the inner frame plates 22 and 32 are automatically formed by cutting up part of the first side plates 50a and 50b, respectively.

  Next, the substantially square-shaped second side plates 52a and 52b respectively extending from the other ends of the outer frame plates 20 and 30 of the first side frame portion 2 and the second side frame portion 3 are fold lines 54b and 54d ( The horizontal plate portion 52 is formed by being folded inward along the line (see FIG. 3) and overlapping. At this time, the horizontal plate portion 52 is locked to the protrusion 22 b provided on the first side frame portion 2 and the protrusion 32 b provided on the second side frame portion 3.

  The side plate portions 40 and 50 of the third side frame portion 4 and the fourth side frame portion 5 face each other and receive both end faces of the package, and the third side frame portion 4 and the fourth side frame portion 5 are horizontal. The plate portions 42 and 52 exert an impact absorbing function. The side plate portions 40, 50 and the horizontal plate portions 42, 52 are the first side plates 40a, 40b, 50a, 50b and the second side plates 42a extending from the ends of the first side frame portion 2 and the second side frame portion 3, respectively. , 42b, 52a, and 52b are formed by bending, so that a separate member is not required and a single cardboard can be used. Further, the side plate portions 40 and 50 can be formed simply by folding the first side plates 40a, 40b, 50a and 50b inwardly and overlapping them, and the horizontal plate portions 42 and 52 are formed of the second side plates 42a, 42b, 52a and 52b. After being folded inward and stacked, it can be formed simply by engaging the projections 22a and 22b provided on the first side frame portion 2 and the projections 32a and 32b provided on the second side frame portion 3, so that assembly work can be performed. Easy. In addition, the number of work steps can be reduced when the cardboard cushioning material is disassembled.

  Further, since the step direction of the corrugated cardboard of the horizontal plate portions 42 and 52 is parallel to the direction in which the first side frame portion 2 and the second side frame portion 3 face each other, the cardboard is crushed in the corrugated direction. Thus, an excellent impact absorbing effect can be obtained. In FIG. 9, the direction of the stage D is displayed by cutting out the central portion of the second side plate 42 a.

  Thereafter, an object to be packaged (not shown) is placed on the bottom plate portion 1. In the case of this embodiment, the upper surface of the package is substantially curved in a convex shape.

  Next, as shown in FIG. 11, the upper plate portion 6 composed of the first upper plate 60 and the second upper plate 62 is assembled. That is, in the step of forming the first side frame portion 2 into a barrel shape, the substantially rectangular first upper plate 60 formed by cutting out the upper portion of the barrel-shaped first side frame portion 2 is formed into a crease line. 68a and 68b (see FIG. 3) and then folded inward to form the convex portion 61, and along the fold line 68c (see FIG. 3), the valley is folded and the tip of the first upper plate 60 The portion is brought into pressure contact with the inner frame plate 32 of the second side frame portion 3. Next, both sides of the second upper plate 62, which is formed by cutting out the upper portion of the second side frame portion 3 having a cylindrical shape and having a wide tip, are valley-folded along a fold line 68e (see FIG. 3). After that, it is folded along the crease line 68d (see FIG. 3) and bent inward by 90 degrees. Then, a claw 64 formed by cutting and raising a part of the first upper plate 60 is inserted into a slit-shaped locking hole 66 formed at the tip of the second upper plate 62. Thereby, the 1st upper board 60 and the 2nd upper board 62 are latched. Thus, the upper plate portion 6 has a shape that supports the article to be packaged from above.

  The upper plate portion 6 absorbs an impact force applied to the upper surface of the package. Since the first upper plate 60 and the second upper plate 62 are connected to the first side frame portion 2 and the second side frame portion 3, respectively, a separate member is not required and a single cardboard can be used.

  The cardboard cushioning material having the above configuration can be made from a single cardboard, can provide a sufficient cushioning effect on all surfaces (six surfaces) of the package, and can be assembled. And disassembly work becomes easy.

  As shown in FIG. 12, the packaging material includes the cardboard cushioning material and the outer box 72. The corrugated cushioning material on which the article to be packaged is set is accommodated in the outer box 72, and then the flap 74 is folded and fixed with a stitching wire or the like.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation is carried out within the range of the summary. In the case of this embodiment, the upper surface of the article to be packaged is substantially curved in a convex shape, but the article to be packaged is not necessarily limited to the one whose upper surface is curved, and may be a flat surface. In this case, the shape of the upper plate portion 6 is a plane.

1 is an external perspective view showing an embodiment of a corrugated cardboard cushioning material according to the present invention. It is the external appearance perspective view which looked at the buffer material made from corrugated board shown in FIG. 1 from the lower side. FIG. 2 is a development view of the corrugated cushioning material shown in FIG. 1. It is an assembly perspective view of a foot. It is an assembly perspective view of the 1st side frame part. FIG. 6 is an assembled perspective view of the first side frame portion subsequent to FIG. 5. It is an assembly perspective view of the 2nd side frame part. It is an assembly perspective view of the 3rd side frame part. It is an assembly perspective view of the 3rd side frame following a Drawing 8. It is an assembly perspective view of the 4th side frame part. It is an assembly perspective view of an upper board part. It is an assembly perspective view of a packaging material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottom plate part 1a Insertion hole 2 1st side frame part 3 2nd side frame part 4 3rd side frame part 5 4th side frame part 6 Top plate part 10a, 10b Foot part 12 Side part 14 Claw 22a, 22b, 32a , 32b Protrusion 40, 50 Side plate portion 40a, 40b, 50a, 50b First side plate 42, 52 Horizontal plate portion 42a, 42b, 52a, 52b Second side plate 60 First upper plate 62 Second upper plate 72 Outer box D Corrugated board Stage

Claims (8)

A substantially rectangular bottom plate portion made of a single corrugated cardboard, four side frame portions respectively provided on the outer periphery of the bottom plate portion, and an upper plate portion connected to the upper portion of the side frame portion;
The bottom plate portion has a pair of feet connected to the bottom plate portion, bends both side portions of the foot portion, and has insertion holes provided in the bottom plate portion with claws provided on both side portions of the foot portion. The foot part is locked to the lower surface of the bottom plate part,
Corrugated cardboard cushioning material.   The corrugated cardboard cushioning material according to claim 1, wherein a corrugated direction of the corrugated cardboard of the foot part is parallel to the bottom plate part. A substantially rectangular bottom plate portion made of a single corrugated cardboard, four side frame portions respectively provided on the outer periphery of the bottom plate portion, and an upper plate portion connected to the upper portion of the side frame portion;
The four side frame parts consist of a pair of first side frame part and second side frame part facing each other, and a pair of third side frame part and fourth side frame part facing each other.
The third side frame part and the fourth side frame part are respectively side plate parts obtained by folding the first side plates extending from the ends of the first side frame part and the second side frame part inwardly and overlapping each other, It consists of a horizontal plate part that is folded inward by overlapping the second side plate extending from the end of the first side frame part and the second side frame part,
The horizontal plate portion is notched on the first side plate and locked to protrusions provided on the first side frame portion and the second side frame portion,
Corrugated cardboard cushioning material.   The corrugated board direction of the said horizontal board part is parallel to the direction where the said 1st side frame part and the said 2nd side frame part oppose, The product made from corrugated board of Claim 3 characterized by the above-mentioned. Cushioning material.   The bottom plate portion has a pair of feet connected to the bottom plate portion, bends both side portions of the foot portion, and has insertion holes provided in the bottom plate portion with claws provided on both side portions of the foot portion. The corrugated cardboard cushioning material according to claim 3 or 4, wherein the foot portion is locked to the lower surface of the bottom plate portion by being inserted into the bottom plate portion.   The first side frame part and the second side frame part each have a cylindrical shape, and are formed by folding a third side plate provided continuously with the bottom plate part. The cardboard cushioning material according to any one of the above.   The upper plate portion has a shape that supports the article to be packaged from above, and is formed by bending an upper plate formed by cutting out the upper portion of the side frame portion. The cardboard cushioning material according to any one of the above.   A packaging material comprising: an outer box; and the cardboard cushioning material according to any one of claims 1 to 7, which is accommodated in the outer box.