Z-Shaped Securing Hook Assembly for Restroom Stall Theft Prevention
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Solution Overview
Problem
Public restroom hooks are vulnerable to 'push, drop, and grab' theft methods, where thieves remove items by pushing them off the hook and grabbing them from the floor, and existing anti-theft devices are often complex, expensive, and difficult to use.
Innovation Solution
A hook assembly with a mounting plate and Z-shaped or zigzag configuration that requires a specific motion to remove items, featuring a lower hook element and an upper securing member that extends over the lower hook, making it difficult for thieves to access items from over the stall without being seen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional simple hooks are used, then ease of operation is improved, but theft vulnerability increases
Solution Approach 1:
The hook assembly transitions from a simple single-plane hook to a multi-dimensional Z-shaped configuration with hook elements extending in different directions and planes. The first hook element extends horizontally, the second hook element extends vertically, and the securing member creates a third dimensional constraint, forming a zigzag pattern that blocks theft from multiple spatial angles while maintaining ease of use for legitimate users.
2Object-affected harmful factors
If complex anti-theft devices with moving parts are used, then theft prevention is improved, but device complexity increases
Solution Approach 1:
The anti-theft function is segmented into multiple static structural elements (first hook element, second hook element, securing member) rather than using a single complex moving mechanism. Each element independently contributes to theft prevention through its fixed position and orientation, eliminating the need for moving parts while maintaining effective theft deterrence.
Solution Approach 2:
Instead of using active mechanisms with moving parts that require operation, the invention uses passive static structural elements whose fixed configuration inherently prevents theft. The securing member extends in a fixed direction perpendicular to the wall surface, creating a physical barrier that passively blocks thief access without requiring any mechanical action or user interaction.
3Object-affected harmful factors
If securing members extend perpendicular to the wall, then theft prevention is improved, but ease of operation worsens
Solution Approach 1:
The securing function is divided between two separate hook elements and a securing member, each with distinct orientations. The first hook element handles primary item attachment, the second hook element provides additional support, and the securing member specifically addresses theft prevention. This segmentation allows each element to be optimized for its specific function without compromising overall ease of use.
Data Source
AI summary
Units or hook assemblies arranged and configured to adequately capture and hold personal items which have some type of handle, rope, strap or the like. Preferred embodiments include a mounting plate for attachment to a restroom stall wall, door or the like. The mounting plate includes an upper end and a lower end. Preferred embodiments further include a first and second hook elements extending outwardly from the mounting plate. Preferred embodiments are arranged and configured to hinder theft or personal items stored on the hook from an over the stall door or wall attempt.