JP5590184B1 - Film roll packaging box and film roll packaging method - Google Patents

Abstract

A film roll packaging box and a film roll packaging method capable of improving the workability of packaging and reducing the material cost and processing cost.
A packaging box for a film roll R in which a film is wound around a core X, the lower box having a lower bottom surface 11 and a lower box side surface 12, and the upper box having an upper bottom surface and an upper box side surface. (Outside FIG. 1), and support plates 30a, 30b that support the film roll R so that the film wound around the core does not contact the lower bottom surface 11 with the core receiving portions 31a, 31b holding the core portion. Is provided. The upper end 13 of the lower box side surface 12 is lower than the core receiving portions 31a and 31b.
[Selection] Figure 1

Description

  The present invention relates to a packaging box of a film roll in which a film is wound around a core, and more particularly to a technique for improving workability and reducing material costs and processing costs.

  A film made of synthetic resin such as polyester is shipped after being packed in a packing box in a film roll wound around a core from a factory. The packaging box is mainly made of an inexpensive and lightweight material such as cardboard, and the film roll is often supported at the core so that the film roll does not contact the inner surface of the packaging box. When the film roll is heavy, the heavy part is reinforced with a plywood board or plastic.

  Patent Document 1 discloses a paper box including a box main body that accommodates a film wound in a roll shape around a core and a pair of support plates that support both ends of the core. In paragraph 0019 of Patent Document 1, the lower limit value of the protrusion length into the box body of the left and right inner flaps on the bottom surface of the main body is set to a dimension that can support the entire lower surface of the support plate. The inner flap tip is set to a size that prevents the inner flap from coming into contact with the lower surface of the film at the maximum inclination angle that is assumed to rise and rotate with the base end side as a fulcrum by the load received through it, ensuring the function to support the support plate On the other hand, it is described that contact between the front end of the inner flap and the film is avoided, and damage to the film and breakage during use due to damage are prevented.

Japanese Patent Laid-Open No. 2007-210652

  Film rolls are abundant in size, some of which are large and heavy with a roll diameter of over 800 mm and a weight of 700-800 kg. If it is going to pack such a large and heavy film roll so that it may not contact the inner surface of a packing box, an effort and a device will be required. Also, if the film roll is large, the size of the packaging box must be increased, and the packaging box costs a lot of material, and the corrugated cardboard has a limit size that can be manufactured with general manufacturing equipment, Even if the packing box is divided into a body box (lower box) and a lid box (upper box), each cannot be made in one piece and the processing fee increases, resulting in a high cost.

  The present invention has been made in consideration of the conventional problems as described above, and can improve the workability of packaging and reduce the cost of materials and processing costs. The purpose is to provide.

  The packaging box of the present invention that has solved the above problems is a film roll packaging box in which a film is wound around a core, a lower box having a lower bottom surface and a lower box side surface, an upper bottom surface and an upper box An upper box having a side surface, and a support plate that supports the film roll so that the film wound around the core does not come into contact with the lower bottom surface. The upper end of the side of the lower box is lower than the core receiving part.

  In the packaging box, the lower box covers the lower side of the film roll and a part of the lower side of the side, and the upper box covers the upper side of the film roll and a part or all of the upper side of the side. It is preferable that the lower end of the upper box side face is lower than the upper end of the lower box side face. In the packaging box, it is preferable that the lower end of the side surface of the upper box is at a position of 0 to 5 cm from the lower bottom surface.

  In the upper box, the upper bottom surface is a quadrangle, and two outer flaps respectively extending from upper ends of two planes parallel to the axis of the core of the upper box side surface, and the two outer flaps Preferably, the inner dimension of the two inner flaps is shorter than 1/2 of the dimension of the upper bottom surface in the direction perpendicular to the axis. In the packaging box, the packaging box preferably further includes a gap pad that is inserted between the side surface of the upper box and the support plate to fill the gap.

  The packing method of the present invention that has solved the above problems is a packing method for packing the film roll in the packing box, the step of fixing the support plate to the lower box, and the support plate. And a step of supporting the film roll, and a step of covering the lower box with the upper box.

  The packaging method of the present invention that has solved the above problems is a packaging method for packaging the film roll in the packaging box, and supports the film roll at the core portion of the film roll at the core portion. A step of attaching a support plate, a step of fixing the support plate to the lower box, and a step of covering the lower box with the upper box.

  In the packaging box according to the present invention, when the upper end of the lower box side is lower than the core receiving part that holds the core part of the film roll, when the support plate is put into the lower box, the upper end of the lower box side is Since the support plate does not need to be lifted higher by a lower amount, workability is improved. Further, the material cost can be reduced by the amount of the lower upper end of the lower box side.

It is a perspective view which shows the lower box of the packaging box which concerns on this invention. It is a perspective view which shows the upper box of the packaging box which concerns on this invention. It is a top view which shows the cardboard before the assembly for lower boxes. It is a top view which shows the cardboard before the assembly for lower boxes different from FIG. It is a top view which shows the cardboard before the assembly for upper boxes. It is a top view which shows the cardboard before the assembly for upper boxes. It is a flowchart which shows the procedure of the 1st packing method which packs a film roll in the packing box which concerns on this invention. It is a flowchart which shows the procedure of the 2nd packing method which packs a film roll in the packing box which concerns on this invention.

  A packaging box according to the present invention is a film roll packaging box in which a film is wound on a core, a lower box having a lower bottom surface and a lower box side surface, and an upper box having an upper bottom surface and an upper box side surface; And a support plate for supporting the film roll so that the film wound around the core does not come into contact with the lower bottom surface, and the upper end of the side of the lower box has a core support portion. It is characterized by being lower than.

  In the packaging box according to the present invention, when the upper end of the lower box side is lower than the core receiving part that holds the core part of the film roll, when the support plate is put into the lower box, the upper end of the lower box side is Since the support plate does not need to be lifted higher by a lower amount, workability is improved.

(Packing box structure)
FIG. 1 is a perspective view showing a lower box of a packaging box according to the present invention. FIG. 2 is a perspective view showing an upper box of the packaging box according to the present invention. As shown in FIGS. 1 and 2, the packing box is a container for packing a film roll (R in FIG. 1) in which a film is wound around a core (X in FIG. 1). An upper box 20, support plates 30a and 30b, and a gap pad 40 are provided. Here, the film is made of a synthetic resin such as polyester, and may be anything as long as it is in the form of a film and is wound around a film roll and conveyed. The core is a cylinder made of synthetic resin, for example, and may be made of paper or metal.

  The lower box 10 is formed by three-dimensionally assembling a piece of corrugated cardboard using a large stapler or adhesive tape, and has a lower bottom surface 11 and a lower box side surface 12. Cover part. The upper box 20 is formed by three-dimensionally assembling two pieces of corrugated cardboard using a large staple or adhesive tape, and has an upper bottom surface 21 and an upper box side surface 22. Cover part or whole.

  Each of the support plates 30a and 30b has core receiving portions 31a and 31b (not shown) that hold the core portion of the film roll, and the film rolls prevent the film wound on the core from contacting the lower bottom surface 11. Support. The support plates 30a and 30b are made of, for example, a veneer plate or a synthetic resin. In addition, when the core of the film roll protrudes about 50 mm from the side surface of the film roll, the protrusion can be placed on the core receiving portions 31a and 31b. However, when the protrusion is small or for reinforcement, A cap (not shown) serving as a substitute is attached by being inserted about 100 to 200 mm inside the core of the film roll.

FIG. 3 is a plan view showing the cardboard before assembly for the lower box. Here, the lower box 10 is made of one piece of cardboard.
The lower bottom surface 11 (corresponding to A in FIG. 3) is formed of a single cardboard and is a quadrangle, and has a structure in which there is no portion where the cardboard overlaps the lower bottom surface 11 (there is no inner flap).

The lower box side surface 12 has a rectangular cylindrical shape composed of four planes (corresponding to B to E in FIG. 3) extending upward from the four sides of the lower bottom surface 11, and the upper end 13 is a core support. Lower than the portions 31a and 31b. By making the upper end 13 lower than the core receiving portions 31a and 31b, when the support plates 30a and 30b are put into the lower box 10, the support plates 30a and 30b do not have to be lifted higher by the amount of the lower upper end 13. Workability is improved. In addition, the material cost can be reduced by the lower upper end 13. The upper end 13 is preferably within 40 cm from the lower bottom surface 11, more preferably within 30 cm, and even more preferably within 20 cm. If the upper end 13 is 20 to 40 cm, the support plates 30a and 30b can be sufficiently fixed, and even if it is lowered to about 5 cm, it can be practically used. Moreover, you may change the height of the upper end 13 of the lower box side surface 12 according to the magnitude | size of the support plate to be used. When the dimension in the height direction of the support plate is S and the radius of the core of the film roll is C, it is preferable to set the height U of the upper end 13 to a value obtained by the following equation.
U = S / 2-C
For example, when using a 83 cm square support plate (S = 83), if the radius of the core of the film roll is 6 cm (C = 6), the height of the upper end 13 is 35.5 cm (U = 83 / 2-6).

  In the conventional lower box, since the upper end of the side surface extends to the vicinity of the upper bottom surface, when the lower bottom surface is formed with a single cardboard as in the lower box 10, for example, when using a support plate of 83 cm square, The width in the direction parallel to the plates 30a and 30b is about 249 cm (83 cm × 3). Corrugated cardboard with a width of 249 cm cannot be manufactured with general manufacturing equipment because the limit width that cardboard can be manufactured with general manufacturing equipment is about 180 cm. Since the manufacturer's manufacturing facilities have to be expanded, the cost is considerably high and it is unrealistic. On the other hand, in the lower box 10, since the upper end 13 of the lower box side surface 12 is within 40 cm, even when an 83 cm square support plate is used, the width in the direction parallel to the support plates 30 a and 30 b is 163 cm (40 cm × 2 + 83 cm) or less. Corrugated cardboard having such a width can be manufactured at low cost with general manufacturing equipment.

FIG. 4 is a plan view showing a cardboard before assembly for a lower box different from FIG. The corrugated cardboard before assembly shown in FIG. 4 is different in shape of seam (also referred to as “glue”) from FIG. 3, and a part (B ′, FIG. 4) forming the seam and the lower box side surface 12. D ′) includes cuts F1 to F8. By using these cuts, F1 and F2, F3 and F4, F5 and F6, and F7 and F8 are engaged with each other, thereby connecting members such as glue and staples. The lower box 10 can be assembled without using it.
Also in the lower box 10 assembled using the corrugated cardboard shown in FIG. 4, the lower bottom surface 11 (corresponding to A ′ in FIG. 4) is formed of a single corrugated cardboard as in the case of FIG. Thus, there is no portion where the cardboard overlaps the lower bottom surface 11 (there is no inner flap).

  5 and 6 are plan views showing the cardboard before assembly for the upper box. The upper box 20 is made of two pieces of cardboard having the same shape. Since the upper box 20 has the upper end 23 of the upper box side 22 up to the vicinity of the lower bottom face 11, for the same reason as in the case of the conventional lower box, it cannot be manufactured in one piece with a general manufacturing facility.

  The upper bottom surface 21 is a quadrangle, and is formed on the outer flap 21a (corresponding to G in FIG. 5), the outer flap 21b (corresponding to H in FIG. 6), and a part of the lower surface of the outer flaps 21a, 21b. The inner flap 21c overlaps (corresponds to I in FIG. 5) and the inner flap 21d (corresponds to J in FIG. 6).

  The upper box side surface 22 has four flat surfaces 22a, 22b, 22c, and 22d extending downward from the two outer flaps 21a and 21b and the two inner flaps 21c and 21d on the upper bottom surface 21, respectively (K in FIG. 6 corresponds to L in FIG. 6, M in FIG. 5, and N in FIG. In addition, it is preferable that the lower end 23 of the upper box side surface 22 is lower than the upper end 13 of the lower box side surface 12, and is in the position of 0-5 cm from the position of the lower bottom face 11, and is in the position of 2-5 cm. Is more preferable. As described above, the lower end 23 of the upper box side surface 22 is lower than the upper end 13 of the lower box side surface 12 and is close to the lower bottom surface 11, so that the packaging can be performed with good appearance. Further, by making the lower end 23 of the upper box side 22 higher than the position of the lower bottom 11 by 2 cm or more, even if some error or deformation of the packaging box occurs, the lower end 23 contacts the ground and is crushed or soiled. Can be eliminated.

  Here, the outer flaps 21a and 21b (corresponding to G in FIG. 5 and H in FIG. 6) are respectively two planes 22a and 22b (FIG. 6) parallel to the axis of the film roll core of the upper box side surface 22. 5 (corresponding to L in FIG. 6) and the inner flaps 21c and 21d (corresponding to I in FIG. 5 and J in FIG. 6) Are extended from the upper ends of two planes 22c and 22d (corresponding to M in FIG. 5 and N in FIG. 6) perpendicular to the axis of the film roll core.

  The axial dimension of the film roll core in the two inner flaps 21c and 21d is preferably shorter than ½ of the dimension of the upper bottom surface 21 in the direction perpendicular to the axis. In a normal cardboard, the outer flap is about half the size of the upper bottom surface 21 and the width of the inner flap is the same as the width of the outer flap, so the width of the inner flaps 21c and 21d (the dimension in the axial direction) is The diameter of the film roll that can be stored without contacting the inner flap of the upper box is increased by an amount shorter than the width of the outer flaps 21a and 21b (1/2 of the dimension in the direction perpendicular to the axis of the upper bottom surface 21). can do.

  If the size of the film roll in the axial direction is smaller than the distance between the support plates 30a and 30b, the gap pad 40 is inserted between the lower box side surface 12 and the support plates 30a and 30b to fill the gap. A spacer, which is formed of a thick plate-like member such as cardboard. When the gap pad 40 is used, the upper end 41 of the gap pad 40 is made higher than the upper end 13 of the side surface 12 of the lower box, so that the gap pad 40 can be easily taken in and out and the workability is improved.

(Packing method 1)
FIG. 7 is a flowchart showing a procedure of a first packing method for packing a film roll in a packing box according to the present invention.
(1) The support plates 30a and 30b are fixed to the lower box 10 (support plate fixing step). When the size of the film roll in the axial direction is smaller than the distance between the support plates 30a and 30b, an appropriate number of gap pads 40 are inserted between the upper box side 22 and the support plates 30a and 30b. Fill the gap. Here, the core receiving portions 31a and 31b are U-shaped notches that are open to the vicinity of the centers of the support plates 30a and 30b.

(2) The film roll is supported on the support plates 30a and 30b (film roll support step). Here, the iron core is passed through the core of the film roll for transportation, and both ends of the iron core are gripped and lifted by a crane, and the core receiving portions 31a and 31b of the support plates 30a and 30b are held at both ends of the core. Pull out in the direction, and the support plates 30a, 30b and the core are fixed with a load string or the like. Here, the lower box 10 covers the lower part of the film roll and the lower part of the side surface.
(3) The upper box 20 is put on the lower box 10 (upper box covering step). Here, the upper box 20 covers the upper part of the film roll and a part or the whole of the upper side of the side face, and the entire film roll is packed.

(Packing method 2)
FIG. 8 is a flowchart showing the procedure of the second packing method for packing the film roll in the packing box according to the present invention.
(1) The support plates 30a and 30b are attached to the core of the film roll (support plate attachment step). Here, the iron core is passed through the core of the film roll for transportation, the film roll is temporarily lowered to the working place, the one end iron core is pulled out in the lateral direction, and the core receiving portions 31a of the support plates 30a and 30b on the core of the film roll, After attaching 31b, the iron core is again passed through the core. Here, the core receiving portions 31a and 31b are holes opened near the centers of the support plates 30a and 30b.

(2) The support plates 30a and 30b are fixed to the lower box 10 (support plate fixing step). Here, the support plates 30 a and 30 b are fixed to the lower box 10 together with the film roll. When the size of the film roll in the axial direction is smaller than the distance between the support plates 30a and 30b, a gap pad 40 is inserted between the upper box side 22 and the support plates 30a and 30b to fill the gap. Here, the lower box 10 covers the lower part of the film roll and the lower part of the side surface.
(3) The upper box 20 is put on the lower box 10 (upper box covering step). Here, the upper box 20 covers the upper part of the film roll and a part or the whole of the upper side of the side face, and the entire film roll is packed.

  As described above, according to the packaging box according to the present invention, the support plate 30a, the upper end 13 of the lower box side surface 12 is made lower than the core receiving portions 31a and 31b that hold the core portion of the film roll. When 30b is put into the lower box, the support plate 30a, 30b does not have to be lifted higher by the lower upper end of the side of the lower box, so that workability is improved. In particular, when the second packing method is used, workability is further improved because it is not necessary to lift a heavy film roll high.

  Further, the material cost can be reduced by the amount of the lower upper end 13 of the lower box side surface 12. Furthermore, if the upper end 13 is higher than the core receiving portions 31a and 31b, when using the above packing method, a hole must be made in the lower box side surface 12 in order to avoid interference with the iron core that passes through the core of the film roll for transportation. However, in the packaging box according to the present invention, since this hole is unnecessary, the processing cost of the lower box 10 can be reduced.

  Further, by lowering the upper end 13 of the lower box side surface 12 in the packing box, even when packing a large film roll, one piece of the lower box 10 is within the limit size that can be used to manufacture cardboard with general manufacturing equipment. Compared to the case where the lower box is made of two pieces, the processing fee is reduced, and when storing the pre-assembled cardboard for the lower box flatly, the storage space is reduced. Get better in almost half.

  Also, in the packaging box, by lowering the upper end 13 of the lower box side surface 12, even when a large film roll is packed, the lower bottom surface 11 is made of one piece using cardboard that is inexpensively manufactured by a general manufacturing facility. It is possible to make a structure in which there is no portion where the cardboard overlaps the lower bottom surface 11 (there is no inner flap). With such a structure, there is no inner flap on the lower bottom surface 11, so that it is a problem in Patent Document 1 “Due to damage or damage to the film due to contact between the inner flap and the film due to the rise and rotation of the inner flap. It is possible to reliably prevent “breakage during use”.

10 Lower box 11 Lower bottom surface 12 Lower box side surface 13 Upper end 20 Upper box 21 Upper bottom surface 21a Outer flap 21b Outer flap 21c Inner flap 21d Inner flap 22 Upper box side surface 22a Plane 22b Plane 22c Plane 22d Plane 23 Lower end 30a Support plate 30b Support plate 31a Core receiving portion 31b Core receiving portion 40 Gap pad 41 Upper end

Claims (8)

A film roll packaging box in which a film is wound around a core,
A lower box having a lower bottom surface and a lower box side surface;
An upper box having an upper bottom surface and an upper box side surface;
A support plate for supporting the film roll so that the film wound around the core does not come into contact with the lower bottom surface;
The lower box side has an upper end lower than the core receiving part over the entire circumference .   The packaging box according to claim 1, wherein the lower bottom surface is formed of a single cardboard. The lower box is
Cover the lower part of the film roll and a part of the lower side of the side,
The upper box is
Covering the upper part of the film roll and part or all of the upper side of the side surface,
The packaging box according to claim 1, wherein a lower end of the upper box side is lower than an upper end of the lower box side.   The packaging box according to claim 3, wherein a lower end of the upper box side surface is at a position of 0 to 5 cm from the lower bottom surface. In the upper box,
The upper bottom surface is
Two outer flaps that are quadrangular and extend from the upper ends of two planes parallel to the axis of the core of the upper box side surface, and two inner flaps that overlap a part of the lower surface of the two outer flaps Formed by
The packaging box according to any one of claims 1 to 4, wherein a dimension of the two inner flaps in the axial direction is shorter than a half of a dimension of the upper bottom surface in a direction perpendicular to the axis. The packaging box further includes:
The packaging box according to claim 1, further comprising a gap pad that is inserted between the upper box side surface and the support plate to fill the gap. A packing method for packing the film roll in the packing box according to claim 1,
Fixing the support plate to the lower box;
A step of supporting the film roll on the support plate;
And a step of covering the lower box with the upper box. A packing method for packing the film roll in the packing box according to claim 1,
Attaching a support plate for supporting the film roll at the core portion to the core of the film roll;
Fixing the support plate to the lower box;
And a step of covering the lower box with the upper box.

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