Portable Ski Edge Sharpener with Belt-Driven Drive Train
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Solution Overview
Problem
Current ski edge sharpeners are limited by their need for a plug-in electrical source, lack of repeatability and accuracy, and high cost, making them less portable and less suitable for frequent use by experts and racers who require precise edge sharpening.
Innovation Solution
A battery-operated, rechargeable ski edge sharpener with a belt-driven drive train, adjustable grinding wheel speed, and control mechanisms for precise angle and depth settings, along with a vacuum system for residue capture, allowing for consistent and accurate sharpening of ski edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a plug-in electrical source is used for ski edge sharpening, then power and grinding capability are improved, but portability and ease of operation deteriorate
Solution Approach 1:
The patent replaces the electrical motor system with a hand-cranked mechanical drive system. The operator turns a crank handle that drives a gear mechanism, which in turn rotates the grinding wheel. This substitution eliminates the need for electrical outlets while maintaining sufficient grinding power through direct mechanical input from the user.
Solution Approach 2:
The device enables self-service operation by incorporating a hand-crank mechanism that allows the user to directly power the grinder without external electrical infrastructure. The operator's own physical effort becomes the energy source, making the device independently operable in remote locations.
2Manufacturing precision
If control mechanisms for precise angle and depth settings are added, then manufacturing precision and repeatability are improved, but device complexity increases
Solution Approach 1:
The device incorporates pre-set angle guides and depth stops that are built into the structure. These features establish the correct grinding angle and depth before the operation begins, eliminating the need for complex adjustable mechanisms. The guides are fixed at optimal angles (such as 89 degrees) to ensure consistent, repeatable results without requiring operator calculation or adjustment.
Solution Approach 2:
The patent changes the approach from adjustable parameters to fixed optimal parameters. Rather than providing mechanisms for the user to adjust and set angles and depths, the device is designed with built-in fixed geometry that automatically establishes the correct grinding parameters. This simplifies the device while maintaining high precision through engineered fixed features rather than adjustable controls.
3Object-generated harmful factors
If a vacuum system is added for residue capture, then cleanliness and performance are improved, but device complexity and cost increase
Solution Approach 1:
The patent incorporates a vacuum system that uses pneumatic principles to capture grinding residue. A vacuum pump or fan creates negative pressure that draws metal particles and dust away from the grinding area through a collection port. This pneumatic approach effectively removes harmful residue without requiring complex mechanical collection systems.
Solution Approach 2:
The vacuum system converts the harmful grinding residue into a manageable byproduct by capturing it during the grinding process. Rather than allowing metal particles to contaminate the work area and potentially damage the ski or snowboard, the vacuum system collects these particles, transforming a harmful effect into a controlled disposal process.
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, battery-operated ski edge sharpener that offers improved repeatability, accuracy, and cost-effectiveness, enabling precise and consistent edge sharpening, reducing burr formation and prolonging edge sharpness.
Implementation Method 1
an abrasive grinding wheel (precision made and super abrasive in one embodiment)
Implementation Method 2
a belt driven drive train that connects the electric motor and the grinding wheel drive mechanism
Implementation Method 3
the ski edge sharpener also includes a vacuum system to capture residue from the grinding operation
Data Source
AI summary
A ski or snowboard edge sharpener may include an abrasive grinding wheel, a belt-driven drive train or direct drive system that connects a motor and grinding wheel drive mechanism and decreases the grinding wheel's speed of rotation relative to the speed of the motor, a grinding wheel mount allowing selection and use grinding wheels of different grits and materials and grinding wheel controls allowing the control of the cut depth and the grinding wheel angles relative to the longitudinal and transverse planes of the ski edge surface to be sharpened. In some embodiments, the sharpener may alternatively include a grinding wheel and motor that drives the grinding wheel drive mechanism. Such configurations may allow repeated sharpening of a ski edge at specific/chosen angles with a specific/chosen surface finish. A position lockdown device that is part of each of the control mechanisms may be included.