Multi-layer Fiber Composite Sliding Sport Apparatus with Offset Dividing Lines
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Solution Overview
Problem
Existing sliding sports equipment, such as snowboards, fail to effectively manage high changing stresses and maintain optimal sliding properties across different usage conditions, leading to tilting and increased risk of falling and edge wear during maneuvers like carving and boardslide.
Innovation Solution
A multi-layer fiber composite system with a multi-field arrangement of anisotropic material properties, where layers are subdivided by dividing lines that create overlapping zones allowing force flow and enabling defined deformation behavior, enhancing strength and edge grip during high-stress maneuvers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If steel edges are replaced with plastic edges to prevent tilting, then tilting is prevented, but riding characteristics on piste and hardened ground deteriorate
Solution Approach 1:
The invention uses a composite structure combining plastic edge with steel insert, leveraging the advantages of both materials: plastic provides tilting prevention while steel maintains edge grip and riding characteristics on piste and hardened ground
2Adaptability or versatility
If fiber composite layers have multi-field arrangement with different fiber orientations, then directional properties under different load conditions are improved, but force flow between fields is interrupted
Solution Approach 1:
The invention introduces an intermediary material layer between fiber fields with different orientations, allowing force flow to continue across field boundaries while maintaining the directional properties provided by the anisotropic fiber arrangements
Solution Approach 2:
The invention creates homogeneous transition zones between different fiber fields, ensuring continuous force flow by making the material properties gradual and compatible across field boundaries
3Ease of manufacture
If conventional multi-layer structures are used, then manufacturing is simplified, but they fail to withstand high changing stresses
Solution Approach 1:
The invention applies local quality enhancement by introducing specific structural features (intermediary layers, offset dividing lines) at critical locations within the multi-layer system, maintaining overall manufacturing simplicity while significantly improving stress resistance through targeted local modifications
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 solution provides improved stability, reduced risk of falling, and extended equipment longevity by allowing the sports equipment to withstand high changing stresses and maintain excellent sliding properties, with enhanced edge grip and reduced wear on steel edges.
Implementation Method 1
at least two layers (2.1 to 2.4; 2.1' to 2.4') with a multi-field arrangement (6) with anisotropic material properties in fields (A to D) of the multi-field arrangement (6)
Implementation Method 2
the course of the dividing lines of the at least two layers arranged one above the other is different, so that fields with different fiber orientations of the layers arranged one above the other overlap
Data Source
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AI summary
The invention relates to a leisure or sport apparatus, in particular a sliding sport apparatus such as a snowboard, ski, kiteboard, wakeboard, surfboard, or skateboard, having two end regions nose (3) and tail (4) and a region (M) extending therebetween, the leisure and sport apparatus being composed of a multilayer fiber composite system of layers of fiber reinforced plastic material, having a longitudinal axis (5) and a transverse axis (7) the point of intersection of which form a layer center point (Q), and at least two layers of the fiber composite system having a multi-area arrangement (6) having anisotropic material properties in areas of the multi-area arrangement (6). According to the invention, the at least two layers arranged above one another, at least in the region (M), are subdivided into areas having different fiber orientations by means of at least one dividing line in each layer, in such a way that the course of the dividing lines of the at least two layers arranged one above another is different, so that areas lying above one another and having different fiber orientations overlap, at least in some regions.