Box Blank Panel Dimensions for Tape Sealing Stability
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Solution Overview
Problem
Existing box blanks and sealing assemblies face challenges in easy sealing and transportation without unwanted opening, particularly due to complex panel layouts and seam locations that complicate taping and increase the risk of tape tears during transport.
Innovation Solution
A modified box blank design with specific panel dimensions and folding lines allows for easy sealing using tape, with seams positioned at a constant height for improved closure and reduced risk of untimely opening, facilitating automated packaging and secure transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the width of side panels is equal to the height of the box (FEFCO code 0410 M/A), then the seams end up at the edges of the box, but this complicates taping and increases the risk of tape tears during transport
Solution Approach 1:
The patent applies local quality by creating a non-uniform distribution of panel widths. Specifically, the end panels are designed with a width greater than the blank thickness, while side panels have width equal to the box height. This local differentiation ensures seams are positioned away from edges at critical locations, improving tape sealing stability without compromising manufacturing simplicity
2Reliability
If seams are retracted from edges at the bottom panel (GB 1 248 131 A, US 2002/134827 A1, EP 1 136 368 A1), then tape sealing is improved, but the blank design becomes more complicated
Solution Approach 1:
The patent segments the blank into distinct functional zones: end panels with increased width for seam retraction, side panels with standard width for structural integrity, and corner panels that bridge these functions. This segmentation allows the blank to achieve reliable tape sealing through controlled seam positioning while maintaining a systematic, manageable design structure rather than arbitrary complexity
3Ease of manufacture
If the blank design follows conventional layouts (FEFCO code 0410 M/A), then manufacturing is simple, but automated packaging becomes relatively complicated
Solution Approach 1:
The patent applies parameter changes by modifying specific dimensional parameters of the blank - particularly the width of end panels (set greater than blank thickness) and the positioning of folding lines. These parameter adjustments create a standardized seam height that is easily accessible for automated taping equipment, improving automated packaging compatibility while maintaining conventional manufacturing simplicity
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 1E~1F
AI summary
A blank for a box having a thickness T and a bottom panel, side panels joined to the bottom panel, end panels joined to a respective end of the bottom panel, corner panels joined to respective sides of the end panels, a top panel joined to one of the end panels, top side panels joined to respective sides of the top panel, and a top end panel joined to the top panel such that it is opposite the first end panel. The bottom panel has a length of about L + 2t and a width of about W + 4t. The side panels each have a length ranging from about L to about L + 2t. The first and second end panels each have a width of about W + 2t, the first end panel having a length of about H +2t, the second end panel having a length of about H + t. The corner panels each have a length of about H and a width of about H1 + 2t. The top panel has a length of about L+3t and a width of about W + 4t. The top side panels have a length ranging from about L + t to about L +3t, and the top end panel has a width between about W + 2t and about W + 4t. The side panels each have a width of about H1 +t. The top side panels each have a width of about H2 + t. The top end panel has a length of about H2 +t, wherein L ≥ ½H, and wherein 0 ≤ t ≤2T. In an assembly of such a blank and a tape having a breadth B, H - H1 ≥ ½B and/or H - H2 ≥ ½B.