Packaging material provided with cushioning members

Abstract

To improve cushioning effect for a packaged object without causing cost increase and prevent positional shift of cushioning members without causing lowering of the strength and durability of a packaging box, a packaging material includes a packaging box and cushioning members, a bottom panel and a cover panel of the packaging box being made of inwardly bendable inner flaps and outer flaps respectively, each of the inner flaps being provided with at least a through hole, the cushioning members being provided in inner side surfaces thereof with recesses in which corner portions or side portions of an object to be packaged are fitted, and on outer side surfaces thereof with cushioning projections fitted in the through holes of the inner flaps, the length of the cushioning projections being set larger than the thickness of the inner flaps so as to form a clearance between the inner flaps and cushioning projections when the cushioning members are housed in the packaging box.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a packaging material including a packaging box used to package a product such as electrical equipment therein, and cushioning members arranged in the packaging box. [0003] 2. Related Art [0004] A product, though it is not limited to electrical equipment, manufactured in a factory is packaged in a corrugated carton and shipped, and cushioning members for protecting the product against an impact imparted thereto during the transportation thereof are used in the packaging box. Especially, electrical equipment has a structure in which electronic parts and precise mechanical parts are combined together, so that the electrical equipment is easily affected by an impact. Therefore, cushioning members are necessary for and indispensable to the packaging of electrical equipment. There are various types of such cushioning member-carrying packaging boxes. [0005] The “Packaging Box with Cushionin...

AI Technical Summary

Benefits of technology

[0017] Since the through holes are formed in only the inner flaps, the strength of the packaging box does not lower, and the through holes of the inner flaps are not seen from the outside, so that the external appearance of the packaging box is not spoiled.

[0018] The cushioning projections are formed in the position of the center of gravity of the product with clearances formed between the packaging box and the portions of the cushioning members other than the cushioning projections. Therefore, an impact imparted to the packaged product being transported is effectively absorbed. Accordingly, the product is not damaged during the transportation thereof, and the reliability of the transportation of the product is improved. Since the cushioning projections are fitted in the through holes provided in the inner flaps, the portions capable of cushioning the product increase by a level corresponding to the thickness of each of the inner flaps. Therefore, even when the clearances provided between the cushioning members and packaging box are narrowed, a cushioning effect can be obtained, and in its turn the cushioning members can be miniaturized. This enables a decrease in the cost due to the reduction of the materials.

Problems solved by technology

Especially, electrical equipment has a structure in which electronic parts and precise mechanical parts are combined together, so that the electrical equipment is easily affected by an impact.

However, since the cut and raised parts are formed in the internal surface of the packaging box, the durability of the box lowers greatly, and there is the possibility that the box collapses during the transportation of the product.

Although the material of the packaging box can be changed to a stronger one, the price of the packaging box increases, and the cost of the packaging material increases.

Although the packaging box and cushioning members can be enlarged, the material cost increases, and, in addition, the transportation expenses increases since the packaging box being transported becomes bulky, to give rise to problems.

However, since the same engaging parts are provided on the front and rear sides of the cushioning members, there is the possibility that, when a product whose shapes of the left and right cushioning members are different, such as a television set is packaged, the cushioning members to be arranged on the left and right sides of the product be fixed to wrong sides thereof.

Furthermore, since cut and raised parts are formed on the panel walls of the packaging box, through holes are formed thereon and the product and cushioning members contained in the box are seen from the outside therethrough, and accordingly, the external appearance of the product in a packaged condition is spoiled.

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