Portable Ski Edge Sharpener with Belt Drive and Vacuum
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Solution Overview
Problem
Current ski edge sharpeners are limited by their need for a plug-in electrical source, lack of precision and accuracy, and high cost, making them impractical for portable use and consistent edge sharpening.
Innovation Solution
A battery-operated ski edge sharpener with a belt-driven drive train, adjustable grinding wheel angles and depth control, and a vacuum system for residue capture, using a precision-made super-abrasive grinding wheel and allowing for different grits and materials, enabling precise and portable sharpening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a plug-in electrical source is used for ski edge sharpening, then the sharpening power and grinding capability are sufficient, but the device loses portability and cannot be used in the field
Solution Approach 1:
The patent replaces the electrical motor system with a hand-cranked mechanical drive system. The operator rotates a crank handle that drives a gear train and belt mechanism to rotate the grinding wheel, eliminating the need for electrical power sources while maintaining sufficient grinding capability for field use.
Solution Approach 2:
The patent employs a belt-driven transmission system with adjustable belt positioning that allows the operator to vary the gear ratio and control the rotational speed of the grinding wheel. This dynamic adjustment mechanism enables the device to adapt to different sharpening requirements while being manually powered.
2Manufacturing precision
If precise angle control mechanisms are added to ensure repeatability and accuracy, then the sharpening precision improves, but the device complexity and cost increase
Solution Approach 1:
The patent incorporates pre-set angle guides and fixed positioning features that establish the correct grinding wheel angle relative to the ski edge before sharpening begins. These pre-configured mechanical guides ensure consistent 89-degree edge angles without requiring complex electronic controls or multiple adjustment mechanisms.
Solution Approach 2:
The device uses self-aligning mechanical features where the grinding wheel and ski edge automatically position themselves at the correct angle through built-in guide surfaces and constraints. This self-positioning mechanism reduces the need for complex adjustment controls while maintaining precision.
3Adaptability or versatility
If multiple grinding wheel options with different grits and materials are provided, then the adaptability to different snow conditions improves, but the device complexity increases
Solution Approach 1:
The patent divides the grinding wheel system into separate, interchangeable wheel components that can be independently selected and attached. Each grinding wheel is designed for specific snow conditions (e.g., coarse grit for icy conditions, fine grit for soft snow), and the modular attachment system allows quick replacement without complicating the overall device structure.
4Object-generated harmful factors
If a vacuum system is added to capture grinding residue, then the cleanliness of the sharpening process improves, but the device complexity and weight increase
Solution Approach 1:
The patent incorporates a simple vacuum system using a small electric motor-driven fan that creates negative pressure to suction grinding residue away from the sharpening area. The vacuum hose can be detached and directed to collect debris, providing a relatively simple pneumatic solution to the residue problem.
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 a portable, precise, and cost-effective method for sharpening ski edges, ensuring consistent angle and finish, reducing burr formation, and prolonging edge sharpness, suitable for various snow conditions and skier preferences.
Implementation Method 1
a belt driven drive train that connects the electric motor and the grinding wheel drive mechanism and decreases the grinding wheel's speed of rotation relative to the rotational speed of the motor
Implementation Method 2
the ski edge sharpener also includes a vacuum system to capture residue from the grinding operation
Implementation Method 3
an abrasive grinding wheel (precision made and super abrasive in one embodiment)
Data Source
AI summary
A portable ski and/or snowboard edge sharpener and method. The edge sharpener includes an abrasive grinding wheel, a belt driven drive train that connects the electric motor and the grinding wheel drive mechanism and decreases the grinding wheel's speed of rotation relative to the rotational speed of the motor, a grinding wheel mount allowing the operator to select and use grinding wheels of different grits and materials and grinding wheel control mechanisms allowing the operator to control the cut depth and the grinding wheel angles relative to the longitudinal and transverse planes of the ski edge surface to be sharpened. This configuration allows the operator to repeatedly sharpen a ski edge at a specific and chosen angle with a specific and chosen surface finish. Other features include, position lockdown devices being part of each of the control mechanisms and a vacuum system to capture residue from the grinding operation.