Sleeve for protecting a corner portion of a product

Inactive Publication Date: 2008-07-31
INT PAPER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]The corner sleeves are formed from a blank and a filler. The blank is formed of a corrugated cardboard material. The filler is formed from a corrugated cardboard material in certain embodiments and in other embodiments is formed from a polyethylene foam. In certain embodiments of the invention, L-shaped channels may be provided within the sleeves between the fold-over panel members and the cushioning members to further assist in holding the product in place. The corner sleeves may also be provided with cutouts for assisting in securement of an insert.

Problems solved by technology

It has further been found that the corners of the products are more likely to be damaged during shipping and / or storage than other parts of the products.
Prior art packaging used for protecting the corners of the products, however, typically suffer from one or more of the following disadvantages, among others: (1) a lack of substantial stacking strength in the horizontal direction; (2) a lack of substantial stacking strength in the vertical direction; (3) formed of non-environmentally friendly (recyclable) materials; (4) do not provide an adequate crumple zone to protect the product during corner drop tests; (5) do not allow for the packaging to easily slide on the corner of the product and stay on the corner of the product; (6) do not accommodate varying sizes of products; (7) are not formed in a pre-assembled packaging component; (8) do not protect the entire corner area of all products; (9) have tabs that interfere with placement of the product into the packaging; (10) have air cells that are too wide because, over time, while a product is stored upright on its end like a book on a book shelf, the bottom edge of the packaging tends to collapse; (11) do not accommodate the attachment of inserts, such as a marker tray insert, thereto; (12) the corner packaging does not “grip” the product; (13) are not easily manufactured by a machine; and (14) are expensive and time-consuming to manufacture.

Method used

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  • Sleeve for protecting a corner portion of a product
  • Sleeve for protecting a corner portion of a product
  • Sleeve for protecting a corner portion of a product

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0060]With the air cell panels 116-126 formed in the rectangular tube 360 and the filler 104 in place as described hereinabove, the remainder of the panels are folded into place in order to form the corner sleeve 100 of the invention. In a preferred embodiment, although not necessary, in order to assist in keeping the panels of the corner sleeve 100 held into position, an adhesive 362 is preferably applied to the bottom surface 130 of the second air cell panel 118 and an adhesive 364 is preferably applied to the second side surface 356 of the filler 104.

[0061]Fold-over panel 108 is folded upwardly and then downwardly along fold line 138 until the top surface 128 of the fold-over panel 108 abuts against or faces the top surface 128 of the bottom panel 106. Edge 148 of the fold-over panel 108 generally faces the top surface 346 of the filler 104, although it is angled relative thereto, and the edge 150 of the fold-over panel 108 generally faces and may abut the bottom surface 130 of t...

second embodiment

[0075]With the air cell panels 116-126 formed in the rectangular tube 660 and the filler 104 in place as described hereinabove, the remainder of the panels are folded into place in order to form the corner sleeve 400 of the invention. In a preferred embodiment, although not necessary, in order to assist in keeping the panels of the corner sleeve 400 held into position, an adhesive 362 is preferably applied to the bottom surface 130 of the second air cell panel 118 and an adhesive 364 is preferably applied to the second side surface 356 of the filler 104.

[0076]Fold-over panel 408 is folded upwardly and then downwardly along fold line 439 until the top surface 128 of the fold-over panel 408 abuts against or faces the top surface 128 of the bottom panel 406. Edge 449 of the fold-over panel 408 generally faces the top surface 346 of the filler 104 and the edge 150 of the fold-over panel 408 generally faces and may abut the bottom surface 130 of the third air cell panel 120 of the rectan...

third embodiment

[0084]With the air cell panels 116-126 formed in the rectangular tube 660 and the filler 704 in place as described hereinabove, the remainder of the panels are folded into place in order to form the corner sleeve 700 of the invention. In a preferred embodiment, although not necessary, in order to assist in keeping the panels of the corner sleeve 700 held into position, an adhesive 362 is preferably applied to the bottom surface 130 of the second air cell panel 118 and an adhesive 364 is preferably applied to the second side surface 956 of the filler 704.

[0085]Fold-over panel 408 is folded upwardly and then downwardly along fold line 439 until the top surface 128 of the fold-over panel 408 abuts against or faces the top surface 128 of the bottom panel 406. Edge 449 of the fold-over panel 408 generally faces and preferably at least partially abuts against the top surface 346 of the filler 704 and the edge 150 of the fold-over panel 408 generally faces and may abut the bottom surface 1...

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Abstract

Corner sleeves are used for protecting corner portions of products. Each sleeve has a pair of cushioning members formed in an L-shaped configuration that define a generally triangular space therebetween. Top and bottom panel members of the sleeve are positioned to cover a top and a bottom of the triangular space. Top and bottom fold-over panel members of the sleeve are folded relative to the top and bottom panel members to be positioned within the triangular space and are biased toward one another. In use, upon insertion of the corner portion of the product between the top and bottom fold-over panel members, the fold-over panel members hold the product in place therebetween and the cushioning members protect the corner portion of the product. L-shaped channels may be provided within the sleeves to further assist in holding the product in place.

Description

CROSS-REFERENCE AND INCORPORATION BY REFERENCE[0001]This application claims the domestic priority of U.S. Provisional Application Ser. No. 60 / 886,546, filed on Jan. 25, 2007, and entitled “Corner Sleeve”. U.S. Provisional Application Ser. No. 60 / 886,546 is hereby incorporated by reference in its entirety.FIELD OF THE INVENTION[0002]This invention relates to the packaging of products. More specifically, the invention relates to sleeve members used for packaging the corner portions of products, such as marker boards and dry erase boards.BACKGROUND OF THE INVENTION[0003]It has long been known that it is desirable to package products in order to protect them from damage during shipping and / or storage. It has further been found that the corners of the products are more likely to be damaged during shipping and / or storage than other parts of the products. Prior art packaging used for protecting the corners of the products, however, typically suffer from one or more of the following disadva...

Claims

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Application Information

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IPC IPC(8): B65D85/30
CPCB65D2585/30B65D81/053B65D81/057
InventorKARI, DAVID F.
OwnerINT PAPER CO