Ski Pull Mechanism for Front Bending During Turns
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Solution Overview
Problem
Existing skis require significant force to maneuver and maintain a desired curve during turning due to inefficient transfer of bending from the rear to the front part, and mechanical solutions like springs are prone to temperature-induced changes in push-away force.
Innovation Solution
A ski design with a front region, middle region, and rear region, featuring an anchoring element, a carrier, and a pull mechanism that forcibly bends the front region when the rear region deflects, utilizing levers and guiding elements to enhance the transfer of deflection, with adjustable tension and flexibility adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a ski is designed for high-speed performance with a hard and/or stiff construction, then speed and stability at high velocity are improved, but the ski becomes difficult to control at low speeds and for inexperienced skiers
Solution Approach 1:
The ski is divided into distinct zones with different flexural characteristics: a tip section with higher flexural rigidity for stability and a tail section with lower flexural rigidity for ease of control. This segmentation allows the ski to provide high-speed stability where needed while maintaining maneuverability at lower speeds.
Solution Approach 2:
Different sections of the ski are given different mechanical properties - the tip section is designed to be stiffer while the tail section is designed to be more flexible. This local differentiation of quality enables the ski to simultaneously provide high-speed stability and low-speed controllability.
2Ease of manufacture
If a ski uses a conventional single-layer or simple multi-layer construction, then manufacturing is simple, but the ski cannot simultaneously optimize performance across different skiing conditions and skill levels
Solution Approach 1:
The ski construction is segmented into multiple layers with different orientations and material properties. The first and second plies are oriented at different angles to provide optimized performance characteristics for different skiing conditions while maintaining a manageable manufacturing process.
Solution Approach 2:
The ski employs a composite construction with multiple layers of materials having different properties. This composite structure allows the ski to exhibit complex mechanical behavior that cannot be achieved with single-layer construction, enabling optimization for various skiing conditions.
3Stability of the object's composition
If a ski has a large surface area for stability, then stability is improved, but the ski becomes less maneuverable and harder to pivot
Solution Approach 1:
The ski's flexural characteristics are segmented along its length, with the tip section providing stability through higher rigidity and the tail section providing maneuverability through lower rigidity. This allows the ski to maintain both stability and ease of pivoting simultaneously.
Solution Approach 2:
Different regions of the ski are assigned different flexural rigidities to fulfill different functional requirements. The local quality variation enables the ski to be stable during high-speed travel while remaining easily maneuverable during turning and pivoting operations.
Data Source
Figure 1~2
AI summary
Ski having a front region (1), a middle region (2) and a rear region (3), wherein in the front region (1) the ski is provided with an anchoring element (4) on its top surface, in the middle region (2) a carrier is attached to the ski, wherein the ski comprises a pull (7), which is interconnected with the anchoring element (4). A rear portion of the carrier extends above the top surface of the rear region (3) of the ski spaced apart therefrom, wherein the pull (7) is arranged for forcibly bending the front region of the ski when the rear region (3) of the ski and the carrier get closer to each other.