Segmented Snowshoe Deck with Flexible Rear for Surface Adaptation
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Solution Overview
Problem
Current snowshoes fail to provide adequate restraint and comfort, especially on varied snow conditions and slopes, as they do not effectively adapt to the geometry of the snow surface, leading to inefficiency and safety concerns for athletes.
Innovation Solution
A snowshoe with a deformable sieve made of materials like polypropylene or polyurethane, featuring a flexible rear and central portion with shape-memory elements, allowing longitudinal and transverse deformation, and equipped with crampons and transverse ribs for improved grip and comfort, ensuring maximum surface contact and energy efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the snowshoe deck is made rigid for structural strength, then strength is improved, but adaptability to snow surface geometry deteriorates
Solution Approach 1:
The deck is divided into multiple independent flexible elements (laminas) that can deform independently, allowing the deck to adapt to irregular snow surfaces while maintaining overall structural integrity through the framework structure
Solution Approach 2:
Different regions of the deck have different flexibility characteristics, with the central portion under the shoe being more flexible to adapt to snow contours, while edge regions maintain greater rigidity for structural support and stability
2Ease of operation
If the snowshoe deck is made flexible for comfort, then ease of operation is improved, but structural strength deteriorates
Solution Approach 1:
The deck uses thin flexible laminas made of materials like polypropylene or polyethylene that can bend and conform to snow surfaces, providing comfort while maintaining sufficient structural strength through the distributed framework and multiple laminas
Solution Approach 2:
The deck combines flexible plastic laminas with a rigid framework structure, creating a composite system that achieves both flexibility for comfort and structural strength through the synergistic combination of different material properties
3Adaptability or versatility
If the entire deck is made flexible for adaptability, then adaptability is improved, but stability deteriorates
Solution Approach 1:
The deck is segmented into multiple rigid framework elements connected by flexible joints, allowing localized adaptation while maintaining overall structural stability through the distributed rigid framework
Solution Approach 2:
The framework structure provides rigid stable support at critical locations (edges, binding areas) while flexible elements are concentrated in the central load-bearing region where adaptation is most needed
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 deformable sieve provides enhanced comfort and safety by adapting to snow conditions, reducing energy expenditure and improving grip on both hard and soft snow, while the shape-memory elements ensure the snowshoe returns to its original shape, maintaining performance and stability.
Implementation Method 1
the rear part is flexible at least longitudinally and at least in the central portion... the longitudinal flexibility allows it to deform along a continuous curve
Implementation Method 2
the sieve includes complementary shape memory elastic deformation elements, designed to return the sieve to its initial shape after deformation
Data Source
AI summary
A snowshoe (1) in the form of an elongated plate called a mesh, onto which a fastener (3) is mounted, intended to hold the shoe of the user in place, the mesh being formed by an elongated plate comprising a front portion (6) called a spatula (6) extended rearward (AR) by a rear part, formed by a central portion (5) extended by a rear portion (7), the front portion (6) being curved upward to form the spatula, characterised in that the rear part is flexible at least longitudinally and at least in the central portion (5), while the front portion (6) of the mesh is rigid so as to be less flexible than the rear part, i.e. the other portions, particularly the central portion and the rear portion.