Bi-directional Exercise Machine with Segmented Resistance Couplers
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Solution Overview
Problem
Conventional exercise machines lack the ability to provide independent and adjustable resistance in both directions of motion, limiting the effectiveness of bi-directional muscle training.
Innovation Solution
An exercise machine with a bi-directional motion system and resistance mechanism that includes rotatable wheels and directional couplers, allowing users to select different resistance levels for each direction of rotation, utilizing magnets and friction surfaces for adjustable resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional exercise machines use fixed resistance mechanisms, then the structure is simple, but the adaptability for different muscle groups and training goals is limited
Solution Approach 1:
The resistance mechanism is segmented into independent first and second resistance mechanisms, each adjustable separately for first and second directions of rotation. This allows different resistance levels to be applied to different muscle groups or training phases without increasing overall system complexity excessively.
Solution Approach 2:
The resistance mechanisms are made dynamic and adjustable through user-operable adjustment mechanisms. The first and second resistance mechanisms can be independently adjusted during operation, allowing adaptation to different training goals, muscle groups, and progression stages.
2Adaptability or versatility
If the exercise machine provides independent resistance adjustment for both directions, then the training effectiveness is improved, but the device complexity increases
Solution Approach 1:
The bi-directional motion system is segmented into independent first and second directional components with separate resistance mechanisms. Each direction has its own resistance adjustment capability, allowing independent control for different training phases or muscle groups without requiring a completely separate system for each direction.
Solution Approach 2:
The force transmission assembly serves multiple functions by transmitting force in both first and second directions through the same rotational component. The directional couplers enable the system to provide resistance in either direction as needed, making the system multi-functional for various training scenarios.
3Power
If the directional couplers lock wheels to the force transmission assembly in specific directions, then the force transmission efficiency is improved, but the ease of operation for adjusting resistance decreases
Solution Approach 1:
The directional couplers act as intermediaries between the force transmission assembly and the wheels. They selectively lock or disengage based on rotation direction, enabling efficient force transmission in the locked direction while allowing smooth adjustment when disengaged. This intermediary component resolves the conflict between maintaining force transmission efficiency and enabling easy adjustment.
Solution Approach 2:
The directional couplers provide dynamic locking and dislocking based on the rotation direction. During resistance adjustment, the couplers can disengage to allow wheel movement, then engage to provide locked force transmission during exercise. This dynamic behavior maintains both ease of operation and force transmission efficiency at different operational phases.
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 effective bi-directional muscle training by allowing users to independently adjust resistance in both directions of motion, enhancing the workout experience and targeting specific muscle groups.
Implementation Method 1
The resistance mechanism may include a first magnet positioned adjacent the first wheel and a second magnet positioned adjacent the second wheel
Implementation Method 2
The resistance mechanism may include a first friction surface that is configured to selectively engage the first wheel and a second friction surface that is configured to selectively engage the second wheel
Data Source
AI summary
An exercise machine having a force transmission assembly rotatable in first and second directions, first and second wheels rotatable in first and second directions, a first directional coupler that couples the force transmission assembly to the first wheel when the force transmission assembly rotates in the first direction, and a second directional coupler that couples the force transmission assembly to the second wheel when the force transmission assembly rotates in the second direction. The first directional coupler allows the force transmission assembly to rotate with respect to the first wheel when the force transmission assembly moves in the second direction, and the second directional coupler allows the force transmission assembly to rotate with respect to the second wheel when the force transmission assembly moves in the first direction. A resistance mechanism may be configured to resist rotation of the first and second wheels independently from each other.