Shopping Bag Hooks with Variable Width Insertion Sections
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional shopping bags lack versatility in accommodating shopping trolleys with varying wall thicknesses, leading to insecure fitting and potential slippage, as they are not designed to adapt to different trolley materials and designs.
Innovation Solution
The shopping bag features adjustable hooks with multiple insertion cross-sections of varying widths, allowing secure attachment to trolleys with different wall thicknesses, and includes coupling elements for secure closure and easy handling, with hooks and rails designed as one piece for stability and economical production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single, wide insertion cross-section is used for all wall thicknesses, then the bag can accommodate thicker walls, but the fit becomes insecure and the hook may slip out with thinner walls
Solution Approach 1:
The hook is designed with a dynamic insertion cross-section that changes width along its length, featuring multiple graduated widths (narrower and wider sections) that can adapt to different wall thicknesses. This dynamic variation in geometry allows the same hook structure to securely fit both thin-wired and thick-plastic trolley walls without slipping.
Solution Approach 2:
Different sections of the hook's insertion cross-section have different local qualities (widths) to match different trolley wall thicknesses. The hook features a narrower insertion cross-section for thin walls and a wider insertion cross-section for thick walls, with each section optimized for its specific application.
2Reliability
If the hooks are pushed further over the wall with narrower insertion cross-sections, then the fit is secure for thin walls, but the bag cannot accommodate thicker walls
Solution Approach 1:
The hook's insertion cross-section is designed to be dynamic rather than fixed, with multiple graduated widths along its length. This allows the hook to accommodate both thin and thick walls by utilizing the appropriate section of the graduated width, eliminating the need to choose between secure fit for thin walls and compatibility with thick walls.
3Ease of manufacture
If the hooks and rails are designed as one piece, then production is more economical and stability increases, but the complexity of the single component increases
Solution Approach 1:
The hook and rail are merged into a single integrated component, eliminating the need for separate parts and assembly steps. This union of components simplifies manufacturing and reduces production costs while maintaining the functional stability of both elements working together as one stable structure.
Data Source
Figure 1~3
Figure 4~6
AI summary
A shopping bag with base (4) has paired opposite-facing walls (2,3) and a top opening (5), where at least one receiving compartment (6) is provided for entering goods through the opening (5) with at least one carrying handle (7) for manually supporting the bag, as well as hooks (12), for hanging the bag in a supermarket shopping trolley. The hooks (12) have, with their adjacent wall sections, different widths of lateral insertion sections for accommodating different widths of trolley walls.