JP2617730B2 - Outer box for packing cardboard - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an outer box for packing cardboard used for packing, for example, packing products such as compressors.

[Related Art] In general, when stacking a plurality of packages that are relatively heavy, such as a compressor, in a cardboard box, and are collectively packed, usually, the lower package is usually placed in the lower package. In addition, the compression load in the vertical direction must be supported so that the weight of the upper package is not added.

Conventionally, in this type of corrugated cardboard packaging, the outer periphery of the corrugated cardboard box is made of wood or metal as a supporting structure for supporting the vertical compressive load of the package due to the strength of the cardboard box itself. The current situation is surrounded by.

However, such conventional packing means not only increases the material cost of the frame material, but also increases the weight, and furthermore, the cost of disposal of the waste material after unpacking is increased. It takes a lot of time to unpack and unpack.

Therefore, recently, in order to make all packaging cardboard,
As shown in FIG. 8, a pallet (2) serving as a stand for facilitating loading and unloading of an outer box main body (1) by, for example, a forklift truck, and a tray mounted on the pallet (2). A first outer box (3) and a second outer box (4) in the form of a box which is loaded by inserting and fitting into the first outer box (3).
A structure has been developed in which the first and second outer boxes (3) and (4) are formed of corrugated cardboard bonded to a plurality of sheets so as to have a compressive strength.

[Problems to be Solved by the Invention] However, in the above-described structure of the conventional outer box main body (1), the first outer box (3) having a tray shape and the second outer box (4) having a box shape are not provided. While the pressure resistance can be increased, when packing, when the lower peripheral edge (41) of the second outer box (4) is inserted and fitted into the inner peripheral side wall (31) of the first outer box (3), The lower peripheral edge (41) of the second outer box (4) hits the corner of the first outer box (3), causing breakage or bending,
In addition to lowering the compressive strength, as shown in FIG. 9, the bottom plate (32) of the first outer box (3) is connected to the end surface (41a) of the lower peripheral edge (41) of the second outer box (4). ), The bottom plate (32) of the first exterior box (3) receives a compressive load in the thickness direction and is easily deformed greatly.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cardboard packaging outer box capable of sufficiently supporting a vertical compressive load.

[Means for Solving the Problems] In order to solve the above problems, the present invention comprises a plurality of cardboard outer boxes which are inserted and fitted to each other,
A step is formed on the inner peripheral side wall of the other outer box into which the peripheral end of one outer box is inserted and fitted, and the peripheral end of the one outer box is abutted to this step, and If
The step portion is formed by adding a plurality of cardboard strips in a headband shape along the inner peripheral side wall of the other outer box.

[Operation] That is, according to the present invention, a cardboard strip having a plurality of pieces attached to the inner peripheral side wall of the other outer box into which the peripheral end of one outer box is inserted and fitted by adopting the above configuration. Is attached in a headband shape to form a stepped portion, and the peripheral end of one of the outer boxes is abutted against this stepped portion, so that the compressive load applied to the insertion fitting portion between the outer boxes is Can be received at the step, so that deformation of the outer box as in the conventional case can be reliably prevented, and
Since all components are made of corrugated cardboard, the material cost is low and it can be easily manufactured,
It is possible to easily perform the work of assembling at the time of packing and the work of treating waste materials after unpacking.

[Embodiment] Hereinafter, the present invention will be described in detail with reference to each embodiment shown in Figs. 1 to 7. In the illustrated embodiment according to the present invention, portions having the same structure as the conventional structure shown in FIGS. 8 and 9 will be described using the same reference numerals.

FIGS. 1 to 4 show a first embodiment of an outer box for packing cardboard according to the present invention. As shown in FIGS. 1 to 3, the outer box body (1) is an eighth embodiment. Similar to the conventional structure shown in FIGS. 9 and 9, a pallet (2) serving as a gantry for simplifying loading and unloading operations using, for example, a forklift truck.
And a tray-like first outer box (3) placed on the pallet (2), and a second outer box (4) inserted and fitted into the first outer box (3) and loaded. ), And the inner peripheral side wall (3) of the first outer box (3).
In 1), a step portion (5) is formed with a step.

That is, as shown in FIG. 4, the step portion (5) is formed by attaching a plurality of cardboard strips (6) to each other along the inner peripheral side wall (31) of the first outer box (3). It is formed by being attached to the shape and fixing with an adhesive (not shown), whereby the step portion (5) is attached to the lower end peripheral edge (41) of the second outer box (4). By abutting the peripheral end surfaces (41a), a compressive load applied to the insertion fitting portion between the outer boxes is received, and the deformation of the outer box is reliably prevented.

Further, the outer case body (1) is provided with a first outer case (3) and a second outer case (4) by changing the height of a corrugated cardboard strip (6) forming a step (5). The external dimensions can be changed without changing the shape of (1), thereby making it possible to share parts.

By the way, each constituent material of the above-mentioned exterior box body (1)
The compression strength is adjusted by increasing / decreasing the number of the cardboards, all of which are formed of a plurality of cardboards. For example, as shown in FIG. 3) is made of three sheets, the second outer box (4) is made of two sheets, and the cardboard strip (6) forming the step portion (5) is made of three sheets. By making the thickness of 6) larger by one cardboard than the thickness of the second outer box (4), the inner peripheral side wall of the first outer box (3) and the outer periphery of the second outer box (4) are made. By forming an insertion gap (L) between the side walls, the packing operation can be performed smoothly, and a large compressive strength can be obtained without using wood, metal, or the like. Is what it is.

FIGS. 5 to 7 show a second embodiment of an outer box for packing cardboard according to the present invention, in which the second outer box (4) has a sleeve shape and a cap-shaped upper portion on the upper portion thereof. 3
And a stepped portion (8) is formed on the inner peripheral side wall (71) of the third exterior box (7) in the same manner as in the first embodiment. A step is formed, whereby the peripheral end surface (42a) of the upper peripheral edge (42) of the second outer box (4) is abutted against the step (8),
It is designed to receive a compressive load applied to the insertion fitting portion between the outer boxes.

It should be noted that the present invention is not limited to the above embodiment at all, and it is needless to say that various modifications can be made without departing from the spirit of the present invention.

[Effects of the Invention] As is apparent from the above description, according to the present invention, a plurality of cardboard outer boxes are inserted and fitted to each other, and the other end to which the peripheral end of one outer box is inserted and fitted is provided. A step is formed on the inner peripheral side wall of the outer box, and the peripheral end surface of the one outer box is abutted to the step, so that the compressive load applied to the insertion fitting portion between the outer boxes is reduced. Because it can be received at the step, it is possible to reliably prevent the deformation of the outer box as in the past,
Since parts can be shared and all components can be made of cardboard, material costs are low and they can be easily manufactured, as well as being assembled and unpacked when packing. This has an excellent effect that later waste material processing can be easily performed.

[Brief description of the drawings]

FIG. 1 is an external view showing a first embodiment of an outer box for packing cardboard according to the present invention, FIG. 2 is a schematic cross-sectional view thereof, and FIG.
FIG. 4 is an exploded perspective view, FIG. 4 is an enlarged sectional view of a main part, also showing an insertion fitting portion, and FIG. 5 is an external view showing a second embodiment of an outer box for packing cardboard according to the present invention. 6
The figure is also a schematic sectional view, FIG. 7 is an exploded perspective view of the same,
FIG. 8 is a schematic cross-sectional view showing an example of a conventional outer box for packing cardboard, and FIG. 9 is a cross-sectional view of an essential part showing an insertion-fitting portion in the same manner. (1) ... outer box body, (3) ... first outer box, (31) ... inner peripheral side wall, (4) ... second outer box, (41) (42) ... peripheral part (41a) (42a) ... peripheral end face, (5) ... stepped part, (6) ... cardboard strip, (7) ... third outer box, (71) ... inner peripheral side wall, ( 8) ...... Step portion.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Daisuke Okazaki 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Akira Matsuno Ao 1-2-3 Kita-aoyama, Minato-ku, Tokyo Tri-Wall Inside (72) Inventor Shuji Osato 1-2-3 Kitaaoyama, Minato-ku, Tokyo Inside Tri-Wall Corporation

Claims (2)

(57) [Claims] 1. A plurality of cardboard outer boxes which are inserted and fitted to each other, and a step is formed on the inner peripheral side wall of the outer box into which the outer end of one outer box is inserted and fitted. A peripheral end surface of the one outer box is abutted against the outer box. 2. The step portion is formed by attaching a plurality of cardboard strips attached together in a headband shape along an inner peripheral side wall of the other outer box. The outer box for cardboard packaging according to claim 1.