Recessed School Bag Hook Structure for Corridor Safety
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Solution Overview
Problem
Conventional hook systems for hanging school bags pose a safety risk due to protruding parts that can cause personal injury or eye damage, especially in high-traffic areas like school corridors, and can accumulate water when fixed to a wall.
Innovation Solution
A hook system with protective recesses that shield the hanging projections, featuring a downwardly sloping contour to prevent water accumulation and a tapered, smooth design to prevent objects from being wedged, and a modular design allowing for safe hanging of bags and other items without protruding parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If protruding hooks are used for hanging school bags, then the hooks can effectively support the load, but they pose a safety risk by causing personal injury or eye damage when people accidentally bump into them
Solution Approach 1:
The hook is nested within a protective recess in the wall structure. The distal tip of the hook is recessed behind the peripheral rim of the wall structure, so that the functional part (hook) is hidden within the protective enclosure (recess). This allows the hook to maintain its load-bearing capability while eliminating the safety hazard of protruding sharp edges.
Solution Approach 2:
The protective recess acts as an intermediary element between the hook and the surrounding environment. It provides a safety buffer zone that prevents direct contact with the hook's sharp edges, thereby mediating between the need for effective hanging (hook function) and the need for safety (protection from injury).
2Ease of operation
If protruding hooks are placed above seating in high-traffic areas, then bags can be conveniently stored, but they create a hazard in corridors with high student traffic
Solution Approach 1:
The hook is nested within the protective recess structure, with the distal tip recessed behind the peripheral rim. This nesting configuration allows the hook to remain accessible for hanging bags while being protected from accidental contact by passing students, thus resolving the contradiction between convenience and safety in high-traffic areas.
3Adaptability or versatility
If the hook structure has protruding parts, then it can effectively hang bags, but it can cause eye damage or personal injury upon accidental contact
Solution Approach 1:
The functional hook element is nested within the protective recess, with its distal tip positioned behind the peripheral rim. This nesting arrangement preserves the hanging functionality while eliminating the eye damage risk by preventing direct exposure of sharp edges to users.
Solution Approach 2:
The potential harm of protruding sharp edges is converted into a benefit by recessing the hook tip within the protective structure. The same geometric features that could cause injury are reconfigured to provide protection, turning the harmful protrusion into a beneficial recessed design that maintains functionality while eliminating danger.
4Ease of manufacture
If the hook system uses a simple protruding design, then it is easy to manufacture, but it accumulates water when fixed to a wall
Solution Approach 1:
The protective recess is designed with curved, sloping surfaces that guide water away from the hook area. The curved geometry prevents water accumulation by creating a self-draining profile, while still maintaining ease of manufacture through standard molding techniques.
Data Source
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AI summary
A hook system (10) for hanging school bags (18). The hook system (10) comprises: a body (10) providing a series of protective recesses (14) each having a projection (16). Each projection (16) allows a school bag to be hung therefrom using a top hanging strap (20) of the school bag (18). Each protective recess (14) shields the corresponding projection (16) to assist with preventing personal injury or eye damage associated with a person accidently moving towards the projection.