Fitness Cable Tensioning Station With Adjustable Freewheel Coupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fitness machines lack the ability to measure and utilize training performance efficiently, particularly in strength training, and often restrict training to fixed movement sequences with suboptimal cost/benefit ratios.
Innovation Solution
A cable pull machine equipped with a generator module and adjustable clamping roller coupling that allows training with both static and dynamic resistances, converting mechanical energy into electrical energy for measurement and further utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a cable pull station is used for strength training with constant weight resistance, then training performance measurement is limited, but if cardio machines with dynamic resistance are used, then training performance can be measured but the resistance is not constant and unsuitable for strength training
Solution Approach 1:
The fitness machine integrates both constant weight resistance training capability (through weight stacks and cables) and dynamic resistance measurement capability (through generators and sensors), allowing the same machine to perform both strength training with measurable output, eliminating the need to choose between the two training modes
2Loss of energy
If stationary fitness machines are used, then training performance measurement is possible but the physical energy cannot be further utilized, but if energy conversion is added, then energy utilization improves but device complexity increases
Solution Approach 1:
The fitness machine uses the mechanical energy generated during exercise to directly power electronic measurement and control systems through integrated generators, making the system self-sufficient and eliminating the need for external power sources, thus reducing operational energy loss without requiring complex external energy conversion infrastructure
3Loss of energy
If fixed movement sequences are provided, then energy conversion is possible but training possibilities are limited and cost/benefit ratio is not optimal
Solution Approach 1:
The system incorporates adjustable cables, pulleys, and attachment points that allow users to dynamically reconfigure exercise paths and resistance angles, enabling a wide variety of exercise movements while maintaining the core energy conversion function through the generator module
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 varied training with measurable and utilizable performance, supporting energy generation and interactive applications, enhancing training efficiency and energy sufficiency.
Implementation Method 1
the mechanical energy generated by muscle power in many ways can be converted, directly or indirectly, into electrical energy
Implementation Method 2
adjustable clamping roller coupling
Data Source
AI summary
The disclosure relates to a cable tensioning station for providing a defined resistance force for resistance training, including a weight (9), which is arranged movably above a pull element (7, 17) and on which the resistance force is at least dependent, the pull element (7, 17) being guided via at least one coupling roller (18), which is designed to transfer a linear motion of the pull element as a rotary motion to a generator (19) to generate electrical energy, characterised in that the coupling roller (18) is embodied as a freewheel with adjustable blocking effect.