Carton Adjustment Indicia for Panel Alignment

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Solution Overview

Problem

Existing carton packaging systems face challenges in efficiently and precisely aligning folded carton blanks, leading to misalignment issues that complicate machine operation, handling, and aesthetics, particularly due to the lack of efficient methods for determining and correcting panel misalignment.

Innovation Solution

Incorporating indicia with gradations and vernier scales on the edges of carton panels to facilitate precise alignment and measurement of panel alignment or misalignment, allowing for quick adjustments to the blank or machinery settings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional alignment methods using simple test lines are used, then the alignment process can be completed, but the precision and efficiency of alignment adjustment is insufficient

Engineering Contradiction:
Improvealignment measurement precisionVSAvoidalignment adjustment time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent uses visual indication through colored bands or shaded regions in the overlay pattern to clearly indicate alignment status. When panels are misaligned by specific amounts (e.g., 1mm, 2mm), corresponding colored regions become visible, providing immediate visual feedback without requiring complex measurement tools.

Inventive Principle:
Principle #32Color changes

Solution Approach 2:

The patent creates an overlay copy of the panel edge pattern and positions it adjacent to the actual panel edge. This overlay contains reference markings that, when aligned with the panel edges, reveal misalignment amounts through visible gaps or overlapping patterns, eliminating the need for separate measurement instruments.

Inventive Principle:
Principle #26Copying

2Manufacturing precision

If manual measurement and adjustment procedures are used, then alignment can be achieved, but the process is tedious and requires multiple iterations

Engineering Contradiction:
Improvepanel alignment precisionVSAvoidcarton formation speed
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The alignment reference markings are pre-printed on the carton blanks during the printing process, before the carton formation occurs. This eliminates the need for post-formation measurement and adjustment, allowing operators to verify alignment immediately after blank preparation and make corrections before the forming process begins.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The carton blank itself provides the alignment reference markings as an integral part of its structure. The markings are self-contained on the blank and require no external measurement devices or complex adjustment mechanisms, enabling operators to perform alignment verification and adjustment using only the blank's own features.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If alignment markings are placed on the carton blank, then alignment verification is possible, but the markings may interfere with advertising or aesthetic graphics

Engineering Contradiction:
Improvealignment verification easeVSAvoidgraphic design complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent segments the carton blank into distinct functional zones: areas dedicated to alignment reference markings and areas reserved for advertising or aesthetic graphics. The alignment markings are confined to specific locations (such as panel edges or corners) that do not overlap with graphic design elements, allowing both functions to coexist without interference.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP1979236B1Carton having adjustment indicia
Publication Date: 2012.05.30 MEADWESTVACO CORP
  • EP1979236B1 patent drawingFigure 1
  • EP1979236B1 patent drawingFigure 2
  • EP1979236B1 patent drawingFigure 3

AI summary

Cartons are disclosed for packaging articles, wherein the cartons have indicia printed thereon to facilitate adjustment of the dimensions of the blanks used to form the cartons, or of the forming machinery on which such cartons may be erected.