JPH11310224A - Corrugated fiberboard box with cushioning structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a corrugated fiberboard box with cushioning structure in a hexahedral structure with a bottom and a lid which is highly efficient in storage and has cushioning function. SOLUTION: The corrugated fiberboard box exhibiting a developed form comprising a bottom, a lid and both side parts made of a single piece of corrugated fiberboard which is to be assembled as a hexahedral box body by folding creases approximately perpendicularly to one another comprises a blanked hole 10 at a border between two side surfaces 9 to be side faces and a bottom surface 2 to be a bottom. Cushion forming surfaces 13 for providing triangular prism holders on opposite sides on the bottom surface 2 of the box body are connected with a crease 3 as a border to respective exteriors of the surfaces 9 in a form that the surfaces 9 are extended, while a receive face 14 opposite to the lid on a side of the surface 9 and a protruding rim 20 to be inserted into and attached to the blanked hole 10 are made to protrude on an end rim on each of cushion forming surfaces 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugated cardboard box having a bottomed and covered structure having a hexahedron structure and a closed bottom.

[0002]

2. Description of the Related Art A general cardboard box used for packaging an article is a so-called JIS-A1 type having a developed shape as shown in FIG. The cardboard box is provided with inner flaps 33 on both sides of four square faces 32 connected continuously with the bending rule 31 as boundaries.
And the outer flap 34 are connected to each other. Four square faces 3
2 form a peripheral side surface of the cardboard box, a bottom is formed by two outer flaps 34 on one side and two inner flaps 33, and a two outer flap 34 and two inner flaps 33 on the other side. This forms a lid. The bending rule 31 of the outer flap 34 and the inner flap 33 is formed on the same straight line, and the inner flap 33 is bent and the outer flap 3 is
The lid and the bottom are assembled by bending and stacking 4. Such a cardboard box is widely used as a packaging box for various kinds of articles, and as described in Japanese Patent Publication No. Hei 18-18624, is conventionally used in a ventilation fan packaging device and a shutter packaging device for a ventilation fan.

When the ventilation fan and the shutter of the ventilation fan are packaged by using the above-mentioned cardboard box, as shown in FIG. 12, a cushioning material 35 is interposed between the ventilation fan 36 and the cardboard box to protect the ventilation fan 36 and the shutter. Is achieved. In the case where the ventilation fan 36 having a grill or a flange protruding from the rectangular cylindrical main body and the shutter of the ventilation fan are to be packaged, the receiving surface 37 for receiving the protruding portion as shown in FIG.
And a rectangular cylindrical body having a concave surface into which a rectangular cylindrical main body is fitted and having an upright surface 38 for supporting the receiving surface 37, and is also made of corrugated cardboard from the viewpoint of recyclability and disposability.

[0004]

The conventional cardboard box as described above is used for packaging articles such as the ventilation fan 36.
The cushioning material 35 for protecting the article is required separately, so that the packaging operation and unpacking are troublesome, and the number of packaging materials tends to increase. In addition, since the cushioning material 35 has a three-dimensional structure such as a sleeve shape, it is bulky, management during storage and assembly is troublesome, and a large storage space is required.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a buffer structure having a hexahedron structure with a bottomed lid having good storage efficiency and a buffer function. Is to get a cardboard box with
An object of the present invention is to reduce the cost of the cardboard box with the buffer structure and to enhance the buffer function.

[0006]

In order to achieve the above object, the invention according to claim 1 comprises a rectangular bottom surface forming a bottom, first side surfaces forming opposite side portions, and a lid facing the bottom portion. The lid surface constituting the portion is continuously provided with the bending ruled line as a boundary, and two opposing second sides forming the other opposite side portions are continuously provided on the opposite two sides of the bottom surface with the bending ruled line as a boundary. A corrugated cardboard box formed as a hexahedral box by forming a developed shape consisting of a single corrugated cardboard sheet and bending each bending ruled line at substantially right angles is provided at the boundary between the second two side surfaces and the bottom surface. With a hole,
A buffer forming surface for forming a triangular cylindrical holder on the opposite side on the bottom surface of the box body is formed by extending the two side surfaces to the outside of each of the second two side surfaces and forming a continuous line with the ruled line as a boundary. At the same time, a means for projecting a receiving surface facing the lid portion on the second two side surfaces and a projecting edge portion to be inserted into the hole and mounted on the end edge thereof is provided on each of the buffer portion forming surfaces.

In order to achieve the above object, a second aspect of the present invention is a rectangular bottom surface forming a bottom portion, first side surfaces forming opposite side portions, and a lid surface forming a lid portion facing the bottom portion. Are formed continuously with the bending ruled line as a boundary, and the second side faces formed as separate bodies forming the other opposing two sides on the two opposite sides of the bottom face are respectively fixed by the bending ruled line as a boundary. The boundary between the second two side surfaces and the bottom surface of a corrugated cardboard box formed as a hexahedral box by forming an unfolded shape fixed on the bottom surface and bending each bending rule at substantially right angles. In the form of extending the two side surfaces, a buffer portion forming surface for forming a triangular cylindrical holder on the opposite side on the bottom surface of the box body is provided outside each of the second two side surfaces. It is supposed that the bending ruled line is set as a boundary To, each buffer portion forming surface, employs a receiving surface facing the lid portion to the second two lateral side, means for projecting the projecting edge for insertion mounting the vent hole to the edge.

In order to achieve the above object, a third aspect of the present invention is directed to a rectangular bottom surface forming a bottom portion, first side surfaces forming opposite side portions, and a lid surface forming a lid portion facing the bottom portion. Are formed continuously with the bending ruled line as a boundary, and on the bottom surface by a fixed surface which is overlapped on the bottom surface with the bending ruled line as the second side surface forming the other opposite side on the two opposite side edges of the bottom surface. A corrugated cardboard box which is formed as a hexahedral box by forming a fixed unfolded shape and bending each bending ruled line substantially at right angles is provided with a hole at the boundary between the second two side surfaces and the bottom surface, A buffer forming surface for forming a triangular cylindrical holder on the opposite side on the bottom surface of the box is formed in a form in which the two sides are extended to the outside of each of the two sides, and the ruled line is formed as a boundary. And the surface on which each buffer is formed Employs a receiving surface facing the lid portion to the second two lateral side, means for projecting the projecting edge for insertion mounting the vent hole to the edge.

According to a fourth aspect of the present invention, there is provided the above-mentioned means according to the first aspect, wherein the center of the receiving surface of each buffer portion forming surface is formed by a cut-up line and a bent ruled line, and the raised upper surface is formed. Are provided on the bottom surface, and a second hole is provided inside the hole, and the upright surface is formed so as to be substantially upright between the bottom surface and the receiving surface by inserting a convex portion into the second hole. Means to make it happen.

In order to achieve the above object, a fifth aspect of the present invention relates to a means for dividing the lid of the above-mentioned means according to any one of the first to fourth aspects into two parts. Is adopted.

According to a sixth aspect of the present invention, in order to achieve the above object, a protruding edge is provided at the center of the second two side surfaces of the means according to any one of the first to fifth aspects, the rising edge rising toward the lid. Means for forming the portion by providing a cut line on the receiving surface side is employed.

[0012]

Embodiments of the present invention will now be described with reference to the drawings. Embodiment 1 FIG. The present embodiment shown in FIGS. 1 to 6 relates to a cardboard box with a buffer structure having a hexahedron with a bottom and a lid. The unfolded shape of the cardboard box with a shock absorbing structure is substantially T-shaped as shown in FIGS. 1 and 2, and as shown in FIG. The first and second opposing side portions 4 are provided on both sides of the bottom surface 2 with the ruled line 3 along the direction A of the corrugated paper (the direction in which the corrugated sheet runs).
Of the first side surface 5 and a lid portion 6 facing the bottom portion 1 provided on one side of the first side surface 5 with the bending ruled line 3 along the eye direction A of the corrugated cardboard as a boundary. Surface 7.

On one side edge of the cover surface 7, a fixing surface 8 which is overlapped with and joined to one surface of the first side surface 5 is continuously provided with the bending ruled line 3 along the eye direction A of the corrugated paperboard as a boundary. Opposite two sides 4 of the bottom surface 2 are opposed to two opposite sides.
The second side surface 9 is formed continuously with the bending ruled line 3 in a direction orthogonal to the direction A of the corrugated paper.
A slit-shaped first hole 10 is provided at the center of the bottom surface 2 along a bending ruled line 3 which is a boundary portion between the second two side surfaces 9 and the bottom surface 2, and a slit is formed inside the first hole 10. The 2nd hole 11 of a shape is juxtaposed. A triangular cylindrical holder 12 as shown in FIG. 3 is provided on the outer side of each of the second two side surfaces 9 on the opposite side on the bottom surface 2 of the cardboard box with a buffer structure in a form extending the side surface 9. The buffer portion forming surface 13 is continuously provided with the bending ruled line 3 in a direction orthogonal to the eye direction A of the corrugated paperboard as a boundary.

Each buffer portion forming surface 13 has a receiving surface 14 facing the lid 6 on the second two side surfaces 9 thereof and a first surface on the edge thereof.
A protruding edge portion 15 to be inserted and mounted in the hole 10 is provided so as to protrude. At the center of the receiving surface 14 of each buffering portion forming surface 13, a convex rising surface 1 is formed by a cut line 16 and a bending ruled line 3.
7 are provided, and the projections 18 of the upright surface 17 are
The bottom surface 2 and the receiving surface 14
And an upright 19 which is substantially vertically interposed is formed. Further, in the center of the second two side surfaces 9, a protruding edge portion 20 that rises toward the lid portion 6 is formed by a cut line 21 that protrudes into the receiving surface 14 side.

The corrugated cardboard box with a buffer structure before assembly as described above is a single corrugated cardboard sheet in the form of a flat plate.
It can be efficiently stored in a warehouse. At the time of packaging, all the bending ruled lines 3 of each buffer portion forming surface 13 are bent in a mountain fold, and the protruding edge portion 15 of the edge is inserted into the first hole 10 of the bottom surface 2. And the convex part 1 of the upright surface 17
8 is inserted into the second hole 11 of the bottom surface 2, and the bottom surface 2 and the receiving surface 1 are inserted.
4 and constitutes a rising 19 which stands substantially vertically. With this operation, a protruding edge portion 20 that rises toward the lid portion 6 is formed at the center of the second two side surfaces 9. As a result, as shown in FIGS. 3 and 4, the holder 12 is formed on both sides of the bottom surface 2 as a buffer structure in which the center forming the end surface of the right triangle is concavely concave. An operation such as bonding is not required for assembling the holder 12, and the receiving surface 14 is stably supported by the upright rising 19.

The article 22 is placed in a storage section surrounded by the holder 12, and the receiving surface 14 of the holder 12 is received by the flange 23 at one end of the article 22, and the first side face 5 is bent so that the ruled line 3 is substantially perpendicular. The fixed surface 8 and one surface of the first side surface 5 are overlapped and adhered or bonded with a tape or the like so that the article 22 is wound around, and the whole is made of a PP band or the like. By uniting by
As shown in FIG. 6, the article 22 can be packaged in a hexahedral cardboard box with a closed bottom and a cushioning structure without separately providing a cushioning member.

An article 22 in which the cardboard box with a buffer structure can be effectively used as a packaging box is a ventilation fan having a flange 23 protruding at one end of a rectangular cylindrical main body or a shutter 24 of a ventilation fan as shown in FIG. Yes, both packaging and unpacking are easy. There is no need to prepare a bulky cushioning material, there is no need for storage, and there are advantages such as easy handling, fewer packaging materials, and good recyclability and disposal. The cushioning function of the holder 12 is good because the load is supported by the rising 19 and the impact on the flange 23 from the lid 6 is buffered by the protruding edge 20 rising to the lid 6 side. Painting can be protected. The protruding edge portion 20 is provided with the article 22 on the lid portion 6 and the receiving surface 14.
It is sufficient to form a gap of about the thickness of the flange 23, and it is not necessary to increase the dimension beyond this. In addition, since the manufacturing method does not include the reverse ruled line that is bent in reverse, the number of processes can be reduced, and the cost can be significantly reduced in addition to the reduction in the number of materials.

Embodiment 2 FIG. The second embodiment shown in FIGS. 7 and 8 relates to a cardboard box with a buffer structure like the first embodiment, and the basic configuration is the same as that of the first embodiment. Therefore, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.

The cardboard box with a buffer structure according to the second embodiment has a developed shape as shown in FIG. 7, similarly to the cardboard box according to the first embodiment. The difference from the first embodiment is that two corrugated cardboard sheets 25 each having a second side surface 9 and each buffer portion forming surface 13 are configured as separate bodies.
The cardboard sheet 26 having the bottom surface 2, the first side surface 5, and the lid surface 7 is fixed to both sides of the bottom surface 2 by fixing surfaces 27. Corrugated cardboard sheet 2 on each buffer portion forming surface 13 side
The fixing surface 27 and the second side surface 9 are connected to each other with the bending ruled line 3 as a boundary. Other configurations are the same as those of the first embodiment, and the functions and advantages are the same. However, since the cardboard box with the buffer structure has a double laminated structure on the bottom 1 as a result, the cardboard box has an excellent buffer function and is suitable for packaging an article 22 having a large mass.

Embodiment 3 The third embodiment shown in FIGS. 9 and 10 relates to a cardboard box with a buffer structure like the first and second embodiments, and has the same basic configuration as that of the first and second embodiments. Therefore, the same or corresponding parts as those in the first and second embodiments are denoted by the same reference numerals as those in the first and second embodiments, and description thereof will be omitted.

The cardboard box with a buffer structure according to the third embodiment has a developed shape as shown in FIG. The second embodiment differs from the second embodiment in that the second side surface 9, the buffer portion forming surface 13, and the bottom surface 2 are formed by a single corrugated cardboard sheet 28, each half of the lid surface 7, the first side surface 5, The corrugated cardboard sheet 29 which is configured as a separate body having the following is bonded and fixed by the fixing surface 30 so that the bottom surface 2 is doubled. This cardboard box with a buffer structure has a divided lid surface 7
, Two lid flaps are formed, and the lid flaps are put together and sealed with a tape or the like to form the lid portion 6. Other configurations are the same as those of the first embodiment, and the functions and advantages are the same. However, the cardboard box is easy to pack and unpack because the lid 6 is divided into two parts, and the bottom part 1 has a double structure, so that it is suitable for packing an article 22 having a relatively large mass. The configuration in which the lid surface 7 is divided into two parts can be applied to the cardboard box with the buffer structure shown in the first and second embodiments in a similar manner.

[0022]

As is clear from the above description of the embodiment, according to the first aspect of the present invention, a low cost cardboard box with a buffer structure having good storage efficiency, easy assembling and having a buffer function can be obtained. .

According to the second aspect of the present invention, a low-cost cardboard box with a buffer structure having good storage efficiency, easy assembling and excellent buffer function can be obtained.

According to the third aspect of the present invention, it is possible to obtain a low-cost cardboard box having a buffer structure, which has a good storage efficiency, is easy to assemble, and has an excellent buffer function.

According to the fourth aspect of the present invention, the buffer function of the holder is improved together with the effect according to the first aspect.

According to the fifth aspect of the present invention, packaging and unpacking are facilitated together with the effect according to any one of the first to fourth aspects.

According to the invention of claim 6, in addition to the effect according to any one of claims 1 to 5, the function of cushioning the load on the lid portion is improved.

[Brief description of the drawings]

FIG. 1 is a development view of a cardboard box with a buffer structure according to the first embodiment.

FIG. 2 is a partially enlarged development view of the cardboard box with a buffer structure according to the first embodiment.

FIG. 3 is a perspective view of the cardboard box with a cushioning structure according to the first embodiment in the middle of assembly.

FIG. 4 is a cross-sectional view of the cardboard box with a buffer structure according to the first embodiment.

FIG. 5 is a perspective view showing a shutter of a ventilation fan as an example of an article stored in the cardboard box with a buffer structure according to the first embodiment.

FIG. 6 is a perspective view of the cardboard box with a buffer structure according to the first embodiment.

FIG. 7 is a development view of a cardboard box with a buffer structure according to the second embodiment.

FIG. 8 is a perspective view of the cardboard box with a buffer structure according to the second embodiment in the middle of assembly.

FIG. 9 is a development view of a cardboard box with a buffer structure according to the third embodiment.

FIG. 10 is a perspective view of a corrugated cardboard box with a buffer structure according to a third embodiment in the middle of assembly.

FIG. 11 is a development view of a conventional cardboard box.

FIG. 12 is a sectional view of a conventional ventilation fan packaging device.

[Explanation of symbols]

1 bottom, 2 bottom, 3 bend line, 4 side,
5 First side, 6 Lid, 7 Lid, 9 Second
Side view, 10 first holes, 11 second holes,
12 Holder, 13 Buffer portion forming surface, 14 Receiving surface, 15 Protrusion, 16 Cut line, 17 Rising surface, 19 Rising, 20 Protrusion, 27 Fixing surface.

Claims (6)

[Claims] 1. A rectangular bottom surface forming a bottom portion, first side surfaces forming opposite side portions, and a lid surface forming a lid portion facing the bottom portion are respectively provided continuously with a bending ruled line as a boundary. A bent shape consisting of a single corrugated cardboard sheet is provided in which two second side surfaces forming the other opposing sides are formed at two opposing edges of the bottom surface, and each of the bent ruled lines is formed continuously. Are bent at substantially right angles to form a hexahedral box, and a hole is provided at the boundary between the second two side surfaces and the bottom surface, and the outside of each of the second two side surfaces is provided. In a form in which the two side surfaces are extended, a buffer portion forming surface for forming a triangular cylindrical holder is formed on the opposite side on the bottom surface of the box body with a ruled line as a boundary. On the part forming surface, A cardboard box with a cushioning structure, wherein a receiving surface facing the lid portion is provided on the second two side surfaces, and a protruding edge portion to be inserted into and inserted into the hole is protruded from an end edge thereof. 2. A rectangular bottom surface constituting a bottom portion, a first side surface constituting both side portions facing each other, and a lid surface constituting a lid portion facing the bottom portion are respectively provided in series with a bending ruled line as a boundary. On the opposite two sides of the bottom surface, the second side surfaces formed as separate bodies forming the other opposite sides are respectively fixed and fixed on the bottom surface by a fixing surface with a bending ruled line as a boundary. For a corrugated cardboard box which is formed into an expanded shape and which is assembled as a hexahedral box by bending each of the bending ruled lines substantially at right angles, a hole is provided at a boundary between the second two side surfaces and the bottom surface, A buffer forming surface for forming a triangular cylindrical holder on the opposite side on the bottom surface of the box body is formed by extending the two side surfaces to the outside of each of the second two side surfaces, and the ruled line is bounded. As well as this Each of the buffer portion forming surfaces has the second
A cardboard box with a cushioning structure having a receiving surface facing the lid portion on two side surfaces thereof and a protruding edge portion which is inserted into the hole and protrudes from an end edge thereof. 3. A rectangular bottom surface constituting a bottom portion, first side surfaces constituting opposite side portions, and a lid surface constituting a lid portion facing the bottom portion are respectively provided continuously with a bending ruled line as a boundary. On the opposite two side edges of the bottom surface, a second side surface forming another opposite side portion is bent to form a developed shape fixed on the bottom surface by a fixed surface overlapping the bottom surface with a ruled line as a boundary, For each cardboard box assembled as a hexahedral box by bending each of the bending ruled lines at substantially right angles, a hole is provided at the boundary between the second two side surfaces and the bottom surface. On each outer side, in the form of extending these two side faces, a buffer section forming surface for forming a triangular cylindrical holder is formed on the opposite side on the bottom surface of the box body, with the ruled line as a boundary, and On each of these buffer section forming surfaces Is a cardboard box with a cushioning structure in which a receiving surface facing the lid portion is provided on the second two side surfaces, and a protruding edge portion to be inserted into the hole is projected from an end edge thereof. 4. The corrugated cardboard box with a buffer structure according to claim 1, wherein each of the buffer portion forming surfaces is provided with a raised upper surface formed by a cut line and a bending ruled line at the center of the receiving surface. Is provided with a second hole inside the hole, and by inserting a convex portion into the upright surface of the upright surface, an upright that stands substantially vertically between the bottom surface and the receiving surface is formed. Cardboard box with shock absorbing structure. 5. The cardboard box with a cushioning structure according to claim 1, wherein a lid surface constituting the lid portion is divided into two surfaces. 6. The cardboard box with a shock-absorbing function according to any one of claims 1 to 5, wherein a protruding edge rising toward the lid at the center of the second two side surfaces is provided on the receiving surface side. Corrugated cardboard box with cushioning structure formed with cut lines.