Hinged Lid Hooks for Bag Anchoring
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Solution Overview
Problem
Conventional stackable plastic containers with hinged lids do not allow for efficient subdivision of the interior volume to accommodate flexible receptacles like sacks or bags, limiting their utility in organizing and transporting multiple items.
Innovation Solution
The design incorporates two lid halves with hooks on their inner surfaces, featuring two-sided undercuts, allowing straps or handles of bags to be securely anchored, enabling the bags to be held open and stacked within the container, and remaining attached when the lid is closed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional stackable plastic containers with hinged lids are used, then the container structure is simple and stackable, but the interior volume cannot be efficiently subdivided to accommodate flexible receptacles like sacks or bags
Solution Approach 1:
The lid is divided into two separate lid halves, each equipped with its own set of hooks. This segmentation allows independent attachment of bags to each lid half, enabling efficient subdivision of the interior volume while maintaining the overall simple container structure
Solution Approach 2:
Hooks are pre-attached to the lid halves during manufacturing, positioned and configured in advance to receive bag straps. This preliminary preparation enables immediate and efficient attachment of flexible receptacles when the container is used, without requiring additional components or complex assembly
2Reliability
If hooks are added to the lid halves to anchor bag straps, then bags can be securely held inside the container, but the lid half structure becomes more complex
Solution Approach 1:
Hooks are attached only at specific locations on the lid halves - specifically at the free ends and at designated positions along the hinge area. This localized attachment provides reliable bag anchoring exactly where needed, while avoiding unnecessary structural complexity in other areas of the lid halves
Solution Approach 2:
The hooks are designed to directly receive and secure bag straps through their undercut geometry, creating a self-locking mechanism that reliably holds bags without requiring additional fastening elements, clips, or complex attachment systems
3Quantity of substance
If multiple hooks are arranged along the hinge of each lid half, then multiple bags can be arranged next to one another inside the container, but the manufacturing precision requirements increase
Solution Approach 1:
Each hook is designed with a universal undercut geometry that can accommodate various bag strap configurations and sizes. The hooks can be arranged in standardized patterns along the lid halves, allowing multiple bags to be secured without requiring custom positioning for each hook, thereby reducing manufacturing precision requirements while still enabling accommodation of multiple bags
Data Source
AI summary
A plastic container (1) with two lid halves (5a, 5b) rotatable about a hinge (6a, 6b) has on the inner surface (5c) of the lid halves hooks (7) arranged in a row adjacent to and along the hinges (6a, 6b). Each hook (7) extends parallel to and spaced apart from the lid half (5a, 5b) and includes a recess having an opening facing and toward the distal end (12a, 12b) and a two-sided undercut. The undercuts allow the placement of one or more bags (8) having two straps (9) inside the container (1) such that the bags (8) are held open. When the lid halves (5a, 5b) are closed the straps (9) remain in place and held by the hooks (7). The invention may be used by shoppers shopping large amounts, which may be placed in the bags. Several containers of this kind may be stacked when their lids closed.