JPH10194327A - Method for packing heavy and long stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the rigidity by packing all sides of a long stock with a corrugated fiberboard, and tightening the long stock with a stretch film having high strength and waterproof property. SOLUTION: All sides at least in the longitudinal direction of a laminated heavy long plate 1 are packed with corrugated fiberboard which is the cushion material. The laminated stock in the naked condition is bound by a string 4 at appropriate places in the longitudinal direction to improve the workability so that the laminated stock can be integratedly lifted. The laminated stock is tightly wound from the top of the corrugated fiberboard 2 by the olefin multi-layer stretch film 3 which is excellent in strength and toughness and having the waterproof property and single-side adhesivity in the side and fixed. No deflection is generated even when the long stock is laminated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for packing long objects having a plurality of weights.

[0002]

2. Description of the Related Art Since a long object 11 having a large weight is bent or broken, a cardboard 13 is put in a wooden box having a strong contact, or a hard disk is vertically moved, especially when a plurality of the long objects 11 are simultaneously transported and transported. Hit the board 16,
As shown in FIG. 2, a skid 12 and a pallet are used, stacked on the pallet, and tightened with a stiffening plate 14 and a baling hoop 15.

[0003]

According to the conventional packing method, a wooden box, a batten such as a cardboard and a board, a skid or a pallet, and a baling hoop are required. The cost of these packaging materials is high because of the need.

[0004] Furthermore, this packaging requires human labor,
Work costs are high.

[0005]

According to the present invention, all sides of a long object are wrapped with a corrugated cardboard and further tightened with a stretch film having high strength and waterproofness.

According to the Young's modulus (E), the maximum bending stress (strain) when n long objects having a weight w, a length 1, a thickness h, and a width b are stacked is 6 wl / nbh ² . The maximum bending stiffness is n ³ bh ³ E / 12 (FIG. 3). The above is a case where n sheets are stacked free of charge. When the number of sheets is completely fixed with a bolt or an adhesive, the above equation shows that the maximum bending stress is 6 wl / n ² bh ² and the maximum bending rigidity is Is n ³ bh ² E / 12 (FIG. 4).

The present invention utilizes this principle to increase the rigidity by densely packing a plurality of long objects.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiment shown in FIG.

Although a plurality of long plates 1 having a large weight are laminated, at least all the side surfaces in the longitudinal direction are wrapped in a cardboard plate 2 as a cushion material. At this time, in order to improve workability such as wrapping and the like, it is convenient to handle an appropriate portion in the longitudinal direction of the bare laminate with a string 4 or the like so that the laminate can be lifted integrally. In addition, 5 is a cardboard footboard / square pad.

After that, the cardboard board 2 has higher strength,
All sides were wound and fixed while being tensioned with a high-toughness, waterproof and single-sided olefin-based multilayer stretch film 3.

As a result, according to the packing method of the present invention, a long object having a width of 600 mm, a thickness of 35 mm, and a length of 8 m is reduced to 15 mm.
No bending occurred even when the sheets were laminated.

[0012] Even if a stretch film having no tackiness is used, the same effect can be obtained by series winding with a machine.

[0013]

According to the packing method of the present invention, a wooden box, a skid or a pallet and a hook band are not required.
Low packaging material costs. Also, the present invention can be automated in the packing operation, so that the operation cost can be reduced.

Further, the batten, the hook band, etc. do not protrude from the exterior, the surface is flat, and the cushioning property of the cardboard does not damage the packaged articles and foreign objects.

[Brief description of the drawings]

FIG. 1 is a perspective view of a package according to the present invention.

FIG. 2 is a perspective view of a conventional packing.

FIG. 3 is an explanatory diagram of a Young's modulus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Long object 2 Cardboard board 3 Stretch film 11 Long object 12 Skid 13 Cardboard board 14 This board 15 Bering hoop 16 Hard board

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[Procedure amendment]

[Submission date] February 28, 1997

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Brief description of drawings

[Correction method] Change

[Correction contents]

[Brief description of the drawings]

FIG. 1 is a perspective view of a package according to the present invention.

FIG. 2 is a perspective view of a conventional packing.

FIG. 3 is an explanatory diagram of a Young's modulus.

FIG. 4 is an explanatory diagram of a Young's modulus.

Claims (3)

[Claims] 1. A continuous stretch of waterproof having a higher strength than an upper surface of a cardboard board, wherein a plurality of long objects having a large weight are laminated or bundled, and a corrugated cardboard plate is applied to all side surfaces along the lengthwise direction. A method for packing heavy, long objects that are wound while tensioning the film. 2. The packing method according to claim 1, wherein the stretch film is a single-sided adhesive film. 3. The packing method according to claim 1, wherein the stretch film is an olefin-based multilayer film.