Skating Machine Synchronizing Assembly and Eccentric Pedals
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Solution Overview
Problem
Existing fitness equipment, such as treadmills and spinning bikes, fail to provide a comprehensive coordination effect for the body and are prone to mechanical failures and noise, with high production costs and limited ability to simulate full-body movements.
Innovation Solution
A skating machine with a rational structural design featuring synchronizing assemblies, adjustable resistance, and counterweight discs, which allows for synchronized pedal movement, resistance adjustment, and simulated inertia, enhancing overall body coordination and intensity while reducing production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a treadmill is used to provide comprehensive body coordination exercise, then the coordination effect is improved, but the device complexity and production cost increase due to many transmission parts and continuous electrical drive
Solution Approach 1:
The patent extracts and removes the complex continuous electrical drive system and running belt from the treadmill, retaining only the essential mechanical frame and user interaction components. This eliminates transmission parts while preserving the core function of body coordination exercise through simulated skating motion.
Solution Approach 2:
The patent replaces expensive, complex electrical transmission systems with simple, durable mechanical components that can be manufactured at lower cost. The design uses basic mechanical linkages and friction-based resistance instead of motors, belts, and electronic controls.
2Duration of action of moving object
If continuous electrical drive is used to rotate the running belt, then the running function is maintained, but the reliability decreases due to parts aging and mechanical failure
Solution Approach 1:
The patent replaces continuous electrical drive with periodic manual pedaling motion. The user provides intermittent pedaling actions that naturally start and stop the motion, eliminating the need for continuous electrical operation and associated reliability issues with motors and continuous transmission systems.
Solution Approach 2:
The system uses the user's own physical effort to drive the mechanism, eliminating dependence on external electrical systems. The friction-based resistance system automatically engages and disengages with the pedals without requiring electrical controls or continuous power supply.
3Duration of action of moving object
If continuous electrical drive is used, then the running function is maintained, but noise production increases leading to household inconvenience
Solution Approach 1:
The patent replaces electrical motors and their associated electromagnetic noise with a purely mechanical friction-based resistance system. The only noise generated is from direct mechanical contact between pedal and friction surface, which is significantly quieter than motor operation and electrical components.
4Device complexity
If a spinning bike is used for resistance adjustment, then the structure is simplified, but the overall body coordination effect is reduced as it focuses only on leg movements
Solution Approach 1:
The patent designs the skating machine to engage multiple body systems simultaneously: leg muscles through pedaling, core stability through torso engagement, and arm coordination through the simulated skating motion. The eccentric pedal arrangement and synchronizing assembly create a full-body exercise experience while maintaining simple mechanical structure.
5Reliability
If traditional treadmill or spinning bike designs are used, then the basic function is provided, but the production cost is high
Solution Approach 1:
The patent divides the exercise function into separate, simple mechanical components: frame structure, pedal assembly, friction resistance mechanism, and synchronizing assembly. Each component can be manufactured independently using basic machining and assembly processes, reducing overall production cost while maintaining functional reliability.
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 skating machine effectively improves overall body coordination, provides realistic skating simulation, and allows for customizable fitness intensity, aiding rehabilitation and muscle building while maintaining stability and reducing production costs.
Implementation Method 1
The synchronizing assembly includes synchronizing wheels arranged at bottom portions of the supporting shafts and a synchronizing chain arranged between the synchronizing wheels
Implementation Method 2
a counterweight disc and a brake assembly are arranged on the supporting shaft and the brake assembly is arranged corresponding to the counterweight disc and brakes the counterweight disc
Implementation Method 3
pedals are hinged to top portions of the supporting shafts, and the pedals are eccentrically arranged relative to the supporting shafts
Data Source
AI summary
The technical field of physical fitness facilities relates to a skating machine includes a rack, supporting shafts, and a synchronizing assembly. The two supporting shafts are hinged to the rack side by side, pedals are hinged to top portions of the supporting shafts, and the pedals are eccentrically arranged relative to the supporting shafts; and the synchronizing assembly is arranged between the two supporting shafts and enables the two supporting shafts to act synchronously. The application is rational in overall structural design, and utilizes a coordination effect of a body and movement trajectories of legs during skating, an apparatus is designed accordingly, and location simulation is-formed between the two pedals through the synchronizing assembly. The application can also be provided with an electric driver to assist a human body with rehabilitation training, or can be provided with a resistance adjusting assembly to improve the fitness effect and intensity.