Geared Resistance Machine Shifting for Isotonic-Isokinetic Transitions
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Solution Overview
Problem
Existing resistance training equipment is often specialized, inconvenient to adjust, and can cause undue strain on users, while 'smart' exercise machines lack versatility, force limitations, and adequate safety measures, and fail to provide feedback on user form and balance.
Innovation Solution
A geared system for resistance training machines that includes a multi-motor setup with electronic actuators to smoothly transition between isotonic and isokinetic modes, featuring a geared system with corrective actions to ensure seamless gear shifts, and providing feedback on form and balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional resistance training equipment is used, then specific exercises can be performed, but the equipment is specialized and requires multiple pieces for variety
Solution Approach 1:
The resistance training machine is designed with a universal platform that can perform multiple exercise modes (isotonic, isokinetic, and hybrid) through a single integrated system. The machine uses programmable resistance mechanisms and adjustable configurations to accommodate various exercises, eliminating the need for multiple specialized equipment pieces while maintaining exercise variety
2Ease of operation
If electronic motors are used in smart exercise machines, then resistance can be adjusted to user's strength level, but the machines are limited in force production and unwieldy
Solution Approach 1:
The system merges electronic motor control with traditional mechanical advantage systems. Electronic motors provide programmable resistance adjustment and control, while mechanical components (gears, pulleys, weight stacks) amplify force production capability. This combination allows the machine to be both easy to operate with programmable resistance and capable of producing high forces for heavy resistance training
Solution Approach 2:
Mechanical transmission components act as intermediaries between the electronic motor and the resistance application point. These intermediaries (gears, belts, pulleys) multiply the motor's output force, enabling the system to generate high forces without requiring proportionally large motors, thus avoiding unwieldy machine design
3Adaptability or versatility
If gear shifting is implemented in resistance training machines, then exercise modes can be transitioned, but the spline alignment may fail and get stuck
Solution Approach 1:
The system performs preliminary alignment actions before gear shifting occurs. Sensors detect the position of splines and pre-adjust the alignment of gear components to ensure proper engagement. This preliminary positioning prevents misalignment and sticking during the shifting process, ensuring reliable mode transitions between isotonic and isokinetic exercises
Solution Approach 2:
The gear shifting system incorporates feedback mechanisms including position sensors and alignment detectors that monitor the state of splines and gear engagement. When misalignment is detected, the system provides feedback to the control system, which then adjusts the shifting sequence or applies corrective forces to realign components, preventing sticking and ensuring reliable mode transitions
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 system enables efficient and safe transitions between exercise modes, providing high torque and constant velocity in isokinetic mode and constant force and variable speed in isotonic mode, while enhancing user safety and workout efficacy through real-time feedback.
Implementation Method 1
a geared system with corrective actions to ensure seamless gear shifts
Data Source
AI summary
Provided herein are Geared Systems for a Resistance Training Machines, Systems, and Methods of Use. The geared system operates with an actuator operably coupled to a motor system, wherein the motor system is operatable to provide resistance in a resistance training machine.