Asymmetrical Snowshoe Binding With Contoured Base
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Solution Overview
Problem
Existing snowshoe bindings fail to adequately account for the non-symmetrical nature of the human foot, leading to instability and discomfort due to insufficient customization for left and right feet, and lack of adjustment for varying shoe widths.
Innovation Solution
The development of asymmetrical snowshoe bindings with injection-molded bases and integral control wings that are specific to each foot, featuring adjustable toe stops and control wing positions to better contour to the foot's anatomy, and an adjustable width mechanism at the arch for accommodating different shoe sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a symmetrical binding design is used, then manufacturing is simpler and cost is lower, but stability and comfort are reduced due to inability to accommodate non-symmetrical foot anatomy
Solution Approach 1:
The binding design transitions from symmetrical to asymmetrical configuration, with the inner control wing positioned forward of the outer control wing to match the natural anatomy of the foot. This asymmetrical arrangement allows the binding to contour properly to the foot's medially positioned arch, improving stability and comfort while accepting increased design complexity as necessary for performance
2Adaptability or versatility
If fixed width control wings are used, then manufacturing is easier and structure is simpler, but adaptability to different shoe widths is limited
Solution Approach 1:
The control wings are designed with adjustable width capability, allowing them to move between fixed and adjustable states. This dynamic feature enables the binding to adapt to different shoe widths while maintaining structural integrity, balancing versatility with acceptable complexity through controlled adjustability rather than complete redesign
3Reliability
If control wings are positioned to cradle the arch region, then shoe stability is improved, but comfort is reduced due to pressure on the arch
Solution Approach 1:
The binding applies different pressure characteristics to different regions of the foot through locally optimized control wing positioning. The inner control wing is positioned forward to cradle the medially positioned arch, while the outer control wing is positioned accordingly to balance the pressure distribution. This local quality approach ensures stability through targeted arch support while distributing pressure to maintain comfort
Data Source
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AI summary
A binding for a snowshoe has an injection molded base or footed with integral control wings for cradling the shoe generally as in Patent No. 5,259,128. The base preferably has toe stops at the forward end, positioned asymmetrically on the base to better individually contour to the left shoe and the right shoe. At the inner side of the foot the toe stop is farther forward. The lower end of the arch side control wing is positioned to cradle the shoe arch while the outer side control wing is at an offset position to engage an aft area of the shoe. Also, the width of the binding can be adjustable at the arch. These features provide a better connection of the snowshoe to the shoe, greater stability in use of the snowshoe and greater comfort to the user.