S-Shaped Spring Hook for Strap-Free Purse Suspension
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Solution Overview
Problem
Existing portable hook devices for purses or handbags are complex, bulky, and limited to use with purses having straps, failing to provide a simple, compact solution for hanging articles without straps or requiring complex mounting.
Innovation Solution
A planar hook device with an S-shape formed by two spring loops, one with a hook member, allowing suspension from chair backs or door tops, and a ring-shaped connecting member for keychain attachment, enabling easy use with or without purse straps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a portable hook device is designed to be simple and compact, then it can be easily carried and stored, but it may lack the functionality to securely hold purses without straps
Solution Approach 1:
The hook device is designed with two distinct loops that serve different functions: the first loop engages with chair backs or door tops for suspension, while the second loop secures to purse straps or directly to purses without straps. This multi-functional design allows a single simple device to work with various purse types, achieving versatility without increasing structural complexity.
Solution Approach 2:
The hook device is segmented into two separate loops rather than using a single complex mounting mechanism. This segmentation allows each loop to be optimized for its specific function - one for suspension from surfaces and another for securing to purses - thereby simplifying the overall structure while maintaining adaptability to different purse configurations.
2Reliability
If a hook device is designed to securely lock purses in place, then it prevents purse theft, but it may require complex mounting mechanisms
Solution Approach 1:
The second loop is designed as a spring-loaded dynamic element that automatically adjusts to fit different purse strap thicknesses and tensions. When the loop engages with a purse strap or the purse itself, the spring mechanism provides continuous pressure to maintain secure engagement, ensuring reliable theft prevention without requiring complex adjustable mounting mechanisms.
Solution Approach 2:
The hook device is designed to be self-securing through the spring-loaded second loop that automatically grips purse straps or purses without straps when engaged. The spring mechanism provides continuous holding force without requiring additional locking mechanisms or complex mounting steps, achieving reliable security through simple self-service action.
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
The hook device provides a compact, portable, and versatile solution for suspending purses or handbags from various surfaces, preventing exposure on public areas, and securely locking them in place without the need for complex mounting.
Implementation Method 1
The upper loop and the lower loop are springs. The upper loop tip is biased towards the front side and the bottom loop tip is biased towards the rear side.
Data Source
AI summary
A compact planar S-shaped hook that suspends purses and handbags from a support structure, such as a chairback or the top of a door. The hook has a top end, a bottom end, a front side, and a rear side. The top end forms an upper loop having a tip adjacent to the front side with a space therebetween. The bottom end forms a bottom loop having a tip adjacent to the rear side with space therebetween. A portion of an article is retained in an interior of the lower loop and a portion of a support structure is retained in an interior of the upper loop. The bottom loop tip has a hook member extending to the rear side, reversibly closing the space existing between the rear side and the bottom loop tip and locking a portion of the article in the interior of the bottom loop.