Adjustable Strap Assembly for Heeled Shoe Stability
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Solution Overview
Problem
Heeled women's shoes often slip off due to imperfect fits and sweat, leading to instability and potential injuries like sprains and blisters, as they tend to be too loose, especially when larger sizes are worn.
Innovation Solution
A shoe strap assembly with a base-plate positioned under the shoe and straps encircling the counter and upper portion of the foot, featuring a buckle mechanism to securely fasten the foot, allowing for adjustable fit and compatibility with various shoe sizes and styles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If shoes are made in larger sizes to accommodate different foot sizes, then the shoes can fit more people, but the shoes become loose and slip off the heel
Solution Approach 1:
The shoe strap assembly divides the securing function into separate components: a base plate attached to the shoe interior, and adjustable straps that wrap around the foot and shoe counter. This segmentation allows the shoe to maintain its original size while adding a separate securing mechanism that prevents slippage.
Solution Approach 2:
The invention adds a dimensional element by extending straps from the base plate through the shoe counter and around the external surface of the shoe. This creates an additional securing dimension outside the shoe's original structure, providing stability without changing the shoe's internal fit.
2Stability of the object's composition
If shoes are designed with a perfect fit for each individual, then foot stability is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The shoe strap assembly is designed as a universal accessory that can be attached to various shoe types and sizes. The adjustable strap length and standardized base plate design allow one product to serve multiple shoe styles, avoiding the need for custom-designed shoes for each individual.
Solution Approach 2:
The shoe strap assembly acts as an intermediary device between the shoe and the foot. Rather than modifying the shoe itself to achieve a perfect fit, the straps serve as a mediating mechanism that provides the necessary stability and customization.
3Ease of operation
If shoes are made loose to accommodate sweat and foot movement, then comfort is improved, but the shoes slip off and cause injuries
Solution Approach 1:
The shoe strap assembly applies preliminary securing force before slippage can occur. The straps are tensioned to create continuous downward and inward pressure on the foot and shoe counter, preventing the harmful slippage motion before it can initiate.
Solution Approach 2:
The base plate is pre-attached to the shoe interior at strategic locations, and the straps are pre-routed through the shoe counter. This preliminary setup ensures that the securing mechanism is in place before the foot is inserted, ready to immediately prevent slippage and injury.
Data Source
AI summary
A footwear securing device is provided. The device includes a front strap, a mid strap, a rear strap, an ankle strap, a connector strap, and a base plate; the base plate configured to attach to a sole of a shoe and comprising a front portion, a mid portion, and a rear portion, the front portion comprising a front slot, the mid portion comprising a mid slot, and the rear portion comprising a rear slot; and the front strap configured to enter the front slot, the mid strap configured to enter the mid slot, and the rear strap configured to enter the rear slot.