JP2001180657A - Packaging box for rolled object and package of rolled object - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box of a rolled object and a package of the rolled object wherein the rolled object is held in a suspended state in the packaging box without using a suspension member. SOLUTION: The packaging box of the rolled object which is rolled around a cylindrical core comprises a parallelopiped barrel and side face parts which close both side faces of the barrel, which are formed of a single corrugated fiberboard sheet. It integrally has a holding portion wherein the side face part is inserted into the core of the rolled object and held.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roll box and a roll package for photosensitive material, thermal paper, pressure sensitive paper, ink jet recording material, etc. The present invention relates to a packaging box and a packaging body that can be held by the above.

[0002]

2. Description of the Related Art When a roll-shaped object is placed directly, a concentrated load is locally applied by its own weight, which causes a problem that the roll-shaped object is deformed or locally damaged. In particular, roll-shaped materials such as plastic films and aluminum foils having a thickness of several tens of μm to several hundred μm, and photosensitive materials, heat-sensitive paper, pressure-sensitive paper or ink-jet recording paper, which are liable to cause quality damage such as fog due to external pressure, The above problem is serious.
Therefore, the packaging form at the time of storage and transportation is devised.

For example, a buffer material such as a foamed resin is generally put in the space between the outer box and the roll-shaped material, but the effect has not been sufficient for the trouble.
Therefore, a method of hanging a roll-shaped object in the air has been adopted.

As a method of suspending a roll-shaped object, a method using a suspended member as shown in FIG. 6 is generally used.
FIG. 6 is a perspective view of a roll-shaped package using a member for hanging in the air. The hanging member 23 is inserted into the hollow portion of the cylindrical core at both end surfaces of the roll 21 to hold the roll 21 suspended in the packaging box 22. These suspension members are usually formed of a plastic resin, but paper suspension members as disclosed in Japanese Patent Application Laid-Open No. 10-181789 may be used in view of environmental considerations relating to disposal of the plastic resin. It has become

[0005] However, the above-mentioned suspension method requires a separate suspension member in addition to the packaging box, which is costly.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a roll-shaped packaging box and a roll-shaped package for holding a roll in a suspended state in a packaging box without using a hanging member. Is to provide.

[0007]

The above objects of the present invention are as follows.
(1) A packaging box of a roll-shaped material wound around a cylindrical core, wherein a rectangular parallelepiped cylindrical body and a side surface portion that blocks both side surfaces of the cylindrical body are formed of one corrugated cardboard sheet. Wherein the side portion integrally has a holding portion inserted into and held in the cylindrical core of the roll-shaped material; (2) a packaging box for a roll-shaped material wound around the cylindrical core; A package body in the form of a roll, wherein a rectangular parallelepiped cylindrical body and side portions for blocking both side surfaces of the cylindrical body are formed of one corrugated cardboard sheet, and the side portion is the roll-shaped material. Inside a packaging box integrally having a holding portion for holding the cylindrical core of
The present invention has been attained by a roll-shaped package, wherein the holding portion is inserted into a hollow portion of a cylindrical core of the roll-shaped material, and the roll-shaped material is housed in a suspended state.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A packaging box according to the present invention is formed of a single corrugated cardboard sheet, and has a side portion for closing a side surface of a cylindrical body and a holding portion for holding a roll core. The part is formed integrally. Hereinafter, a specific description will be given with reference to the drawings.

FIG. 1 is a development view showing an embodiment of the packaging box of the present invention. The developed view shows one corrugated cardboard sheet 1
And shows a state punched by a punching machine. The corrugated cardboard sheet 1 includes four pieces 2a, 2b, 2c, and 2d that form a rectangular parallelepiped cylindrical body, and side flaps 3a, 3 that form side portions that block both sides of the cylindrical body.
b, 3c, 3d, 4a, 4b, 4c, and 4d, and a holding flap 5 that forms a holding portion that holds the core of the roll-shaped material
a, 5b, 5c, 5d, 6a, 6b, 6c and 6d;
And a glue margin 7 for joining the cylindrical body. Here, the side flap forming the side surface portion and the holding flap forming the holding portion are integrally formed.

Each side flap 3a, 3c, 4a
And 4c, the holding flaps 5a, 5c, 6a and 6c
And cutouts 8a, 8c, 9a of the same shape and size
And 9c, and holding flaps 5b, 5d, 6b and 6
d has notches 10b, 10d, 1 of the same shape and size.
1b and 11d.

Next, a procedure for assembling the developed view into a packaging box will be described. FIG. 2 is an explanatory view of the assembly. First, the ruled lines (folding lines) 12a, 12b, and 12c are folded to form a rectangular parallelepiped cylindrical body, which is joined to the piece 2a with an adhesive so that the glue margin 7 is on the inside, and the cylinder shown in FIG. A torso is formed. Next, the fold lines 31a and 31c of the side flaps 3a and 3c and the fold lines 51a and 51c of the holding flaps 5a and 5c are respectively folded (FIG. 2B). Here, the holding flaps 5a and 5c are in a state of being folded inside the box. Next, the side flap 3d and the holding flap 5d are bent along the folding lines 31d and 51d, and the holding flap 5d is inserted into the cutouts 8a and 8c (FIG. 2c). Similarly, the side flap 3b and the holding flap 5b are folded, and the holding flap 5b is inserted into the cutouts 8a and 8c (FIG. 2d). At this stage, one side surface of the cylindrical body is in a closed state.

FIG. 3 is a perspective view of the holding portion when the state of FIG. 2D is viewed from the inside of the packaging box. The holding part 5 is formed by four holding flaps 5a, 5b, 5c and 5d. Then, the holding flaps 5b and 5d are inserted into the cutout portions 8a and 8c of the holding flaps 5a and 5d,
The holding flaps 5a and 5c are inserted into notches 10b and 10d of the holding flaps 5b and 5c, and are fixedly fitted to each other.

In the case of preparing a roll-shaped package using the above-described packaging box, first, one side of the cylindrical body is shown in FIG.
d, and the roll is inserted from the other open side of the cylindrical body so that the core hollow portion of the roll is inserted into the holding portion 5 formed thereby.
After the insertion of the roll is completed, the other side of the tubular body is closed. At this time, the procedure of FIGS. 2A to 2D described above is repeated, and the other holding portion is inserted into the hollow portion of the core to complete the process. At this time, it is preferable that a plastic film sheet having a low air permeability and a low moisture permeability or a sheet having a cushioning property is previously wound around the outer periphery of the roll.

The above embodiment is one embodiment of the present invention, and various specifications can be changed within the scope of the present invention. The development of FIG. 1 shows the holding flaps 5a to 5d and 6a to
6d is symmetrical, but 6a and 6d, 6c and 6d
May be interchanged.

Further, in order to increase the strength of the holding portion, the holding flaps may be folded and overlapped as shown in FIGS. FIG. 4 shows the holding flaps 5a, 5a and 5b.
Symmetric auxiliary flaps 53a, 53b, 53c and 53d are provided at the tips of b, 5c and 5d, respectively. This auxiliary flap is connected to each folding line 52a,
Fold along 52b, 52c and 52d and overlap with each holding flap to make it double.

FIG. 5 shows another embodiment in which the overlapping direction is changed. Auxiliary flaps 54a, 54b, 54c are provided on both sides of the holding flaps 5a, 5b, 5c and 5d, respectively.
And 54d are provided. This auxiliary flap is connected to the respective folding lines 55a, 552b, 55c and 55d.
And overlap with each holding flap to make it double.

In the present invention, the corrugated cardboard sheet for forming the packaging box is preferably a corrugated cardboard using a reinforced medium. Here, the reinforced medium shin is also called SCP medium shin, and is made by using 100% of semi-chemical pulp. The details are described in “Introduction to Corrugated Cardboard Packaging Technology” published by Nippo Co., Ltd. (issued March 20, 1985).

[0018]

According to the present invention, a packaging box integrally having a holding portion for holding a core of a roll is formed from a single corrugated cardboard sheet, thereby eliminating the need for a separate hanging member. The roll can be held in a suspended state. By using the packaging box of the present invention, the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a development view showing one embodiment of a packaging box of the present invention.

FIG. 2 is an explanatory view of an assembly drawing.

FIG. 3 is a perspective view of the holding unit when the state of FIG. 2D is viewed from the inside of the packaging box.

FIG. 4 is a developed view showing another embodiment of the packaging box of the present invention.

FIG. 5 is a developed view showing another embodiment of the packaging box of the present invention.

FIG. 6 is a perspective view of a roll-shaped package using a hanging member.

[Explanation of symbols]

1 One corrugated cardboard sheet 2a, 2b, 2c, 2d for forming a packaging box Pieces 3a, 3b, 3c, 3d for forming a rectangular parallelepiped cylindrical body Side flaps 4a, 4b, 4c, 4d for forming side portions 5a, 5b, 5c, 5d Holding flaps forming holding parts 6a, 6b, 6c, 6d Holding flaps forming holding parts

Claims (3)

[Claims] 1. A packaging box for a roll wound around a cylindrical core, wherein a rectangular parallelepiped cylindrical body and a side wall for closing both side surfaces of the cylindrical body are a single corrugated cardboard sheet. Wherein the side portion integrally has a holding portion that is inserted into and held in the cylindrical core of the roll-shaped material. 2. Four pieces (2a, 2b, 2c, 2d) forming a rectangular parallelepiped cylindrical body, a glue margin portion 7 for joining the cylindrical body, and cylinders at both ends of the four pieces. Flap (3a,
3b, 3c, 3d, 4a, 4b, 4c, 4d), and the side flaps are formed into a holding flap (5) which forms a holding portion to be inserted and held in the cylindrical core of the roll.
a, 5b, 5c, 5d, 6a, 6b, 6c, 6d), and the holding flaps have cutouts (8a, 8c, 9a, 9c) and cutouts (10b) for fitting and fixing each other. 1, having 10d, 11b, 11d)
The packaging box for a roll-shaped material according to claim 1, wherein the corrugated cardboard sheets are assembled and formed. 3. A package of a roll wound around a cylindrical core, the corrugated cardboard sheet having a rectangular parallelepiped cylindrical body and a side portion for closing both side surfaces of the cylindrical body. The holding portion is inserted into the hollow portion of the cylindrical core of the roll-shaped material in a packaging box having the side portion integrally formed with the holding portion for holding the cylindrical core of the roll-shaped material. A package for rolls, wherein the rolls are stored in a suspended state.