Interrupted Gusset Bag Manufacturing Method
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Solution Overview
Problem
Bags with continuous gussets along the sides are inefficient to manufacture and can be disadvantageous at the top opening, where they may snag items or allow contents to fall out, and are difficult to store flat.
Innovation Solution
A method of forming bags with interrupted gussets by inwardly V-folding gusset panels, applying adhesive patches, and removing gusset portions to secure the patches to the bag panels, allowing for easier handling and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If continuous gussets are used along the sides of the bag, then the bag can be stored flat with reduced width, but the gussets may snag items at the top opening and allow contents to fall out easily
Solution Approach 1:
The continuous gusset is divided into multiple segments: a lower gusset portion extending from the bottom and an upper gusset portion extending from the top, with a gap between them. This segmentation allows the bag to maintain storage capacity while preventing the gusset from snagging items or allowing contents to fall out at the opening.
Solution Approach 2:
Different portions of the gusset are designed with different properties: the lower gusset portion maintains the traditional continuous structure for storage efficiency, while the upper gusset portion is interrupted or discontinuous to prevent snagging and improve security at the opening area.
2Productivity
If gussets extend along the complete height of the bag sides, then manufacturing is efficient, but handling and storage becomes difficult and time consuming
Solution Approach 1:
The gusset is segmented into lower and upper portions with a gap between them. This segmentation allows the bag to be folded flat more easily by reducing the complexity of the gusset structure at the top, thereby decreasing the time and effort required for handling and storage while maintaining manufacturing efficiency.
3Ease of operation
If interrupted gussets are used, then the top opening is more secure and easier to handle, but manufacturing becomes difficult and inefficient
Solution Approach 1:
The bag blank is pre-formed with the interrupted gusset structure incorporated into the side panels before bag assembly. The lower and upper gusset portions are positioned and secured in advance, allowing the final bag to be manufactured efficiently without requiring complex post-assembly operations to create the interrupted gusset effect.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method enables efficient manufacturing of bags with interrupted gussets, improving top opening security and ease of storage by restricting the opening size and enhancing usability.
Implementation Method 1
adhesively adhering a patch to one of the gusset panels and to the front panel
Data Source
AI summary
A method of forming a bag with at least one gusset on one side including the steps of (a) forming a bag blank having a front panel and a back panel connectable along opposite sides, (b) forming a gusset along one side of one of the front and back panels, the gusset comprising first and second gusset panels inwardly V-folded, which gusset panels have a removable gusset portion at a selected position on the one side, (c) adhesively adhering one side of a patch to one of the gusset panels to a location adjacent the removable gusset portion, the patch having a second adhesive on portions extending beyond the one gusset panel location to the removable gusset portion and beyond the V-fold, and (d) removing the removable gusset portion from the gusset.