Multi-Mode Exercise Machine with Independent Resistance and Pedal Linkage
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Solution Overview
Problem
Current exercise machines lack versatility in providing multiple exercise modes, such as rowing, cycling, and elliptical training, with inadequate resistance mechanisms and linkage systems that do not allow for independent movement of pedals and pull cables, limiting user workout variety and effectiveness.
Innovation Solution
The exercise machine incorporates a frame with a seat track, flywheels, crank assemblies, magnetic resistance mechanisms, and linkage systems that enable multiple exercise modes by allowing the crank pedals to travel in circular paths and linkage pedals to travel in oblong paths, with independent resistance mechanisms for flywheels and pull cables, allowing for varied workouts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single resistance mechanism is used for both flywheels and pull cables, then device complexity is reduced, but adaptability and versatility are limited due to inability to provide independent resistance control for different exercise modes
Solution Approach 1:
The resistance system is segmented into independent components: a first resistance mechanism coupled to the first flywheel and a second resistance mechanism coupled to the pull cable. This segmentation allows each mechanism to be independently adjusted and controlled, enabling versatile exercise modes including cycling, rowing, and elliptical training without compromising device complexity
Solution Approach 2:
The exercise machine achieves multi-functionality by integrating both resistance mechanisms into a unified system that can perform multiple exercise modes. The independent resistance control allows the same machine to provide customized resistance for different exercises (cycling, rowing, elliptical) while maintaining a manageable overall structure
2Adaptability or versatility
If crank pedals and linkage pedals are mechanically linked to move together, then device complexity is reduced, but adaptability is worsened due to inability to provide independent movement paths for different exercise modes
Solution Approach 1:
The pedal system is segmented into independent crank pedals and linkage pedals with separate movement mechanisms. The crank pedals are coupled to the crank assembly while linkage pedals are coupled to the linkage mechanism, allowing each to traverse independent paths (circular for crank, oblong for linkage) and enabling multiple exercise modes
Solution Approach 2:
The system employs dynamic linkage mechanisms that allow the linkage pedals to move in oblong paths while crank pedals move in circular paths. This dynamic design enables the pedals to adapt their movement trajectories based on the selected exercise mode, providing versatility without requiring a completely separate mechanism for each mode
3Adaptability or versatility
If fixed resistance levels are used, then device complexity is reduced, but adaptability is worsened due to inability to adjust resistance independently for different exercise intensities and modes
Solution Approach 1:
The resistance mechanisms are designed with dynamic adjustment capabilities, allowing users to modify resistance levels during different exercise modes. The first resistance mechanism can be adjusted for cycling intensity while the second resistance mechanism can be adjusted for rowing intensity, providing adaptability across different exercise types without requiring a completely separate control system for each mode
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
Enables users to perform rowing, cycling, and elliptical exercises with adjustable resistance, enhancing workout variety and effectiveness by allowing independent movement of pedals and pull cables, thereby improving user engagement and calorie burn tracking.
Implementation Method 1
a first magnetic resistance mechanism that resists movement of the first flywheel
Data Source
AI summary
An exercise machine includes a frame, a seat track of the frame, a seat movably attached to the seat track of the frame, at least one resistance mechanism connected to the frame, a pull cable in communication with the resistance mechanism, a crank assembly in communication with the resistance mechanism, a first swing arm connected to the frame, and a second swing arm connected to the frame.