Dual Resistance Exercise Apparatus Cable Pulley Configuration
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Solution Overview
Problem
Exercise equipment with a cable and pulley system typically requires a greater number of stacked weights to achieve a wider range of resistance levels, limiting the versatility and efficiency of resistance adjustment.
Innovation Solution
The apparatus features a carriage assembly with upper and lower pulleys, where cable ends are coupled to a source of selectable exercise resistance, allowing for two levels of resistance by attaching one or both cable ends to an exercise member, providing adjustable resistance without the need for multiple weight stacks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a greater number of stacked weights are used, then the range of exercise resistance is increased, but the device complexity and space requirements increase
Solution Approach 1:
The cable system is divided into multiple independent cable ends (first cable end and second cable end) that can be selectively attached to the exercise member. Each cable end can be independently configured to provide different resistance levels, allowing the system to segment the total resistance range into manageable portions that can be combined in various ways.
Solution Approach 2:
The system dynamically adjusts resistance by allowing selective attachment and detachment of cable ends to the exercise member based on the exercise requirements. The resistance configuration changes from static weight stacks to a dynamic cable system where users can switch between different resistance levels during workouts.
2Adaptability or versatility
If more weights are stacked to provide greater resistance range, then the versatility of resistance adjustment is improved, but the ease of operation deteriorates
Solution Approach 1:
The resistance selection process is simplified through dynamic cable configuration. Instead of manually stacking or unstacking weights, users can quickly attach or detach cable ends to the exercise member to switch between resistance levels, making the process more intuitive and easier to operate.
Solution Approach 2:
The cable system acts as an intermediary between the resistance source and the exercise member. The cable ends serve as intermediate connection points that allow users to select resistance levels without directly interacting with the weight stacks, simplifying the operation through a more user-friendly interface.
3Adaptability or versatility
If the cable system allows selective attachment of cable ends, then the versatility of resistance levels is improved, but the device complexity increases
Solution Approach 1:
The cable system is segmented into multiple independent cable ends that can be selectively configured. Each cable end can be independently attached or detached from the exercise member, allowing for multiple resistance configurations without requiring a completely complex reconfiguration system.
Solution Approach 2:
The cable ends serve multiple functions: they provide the primary cable connection, enable resistance selection through selective attachment, and allow for easy configuration changes. This multi-functionality reduces the need for additional specialized components, managing complexity while maintaining versatility.
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 greater flexibility in resistance selection, allowing users to achieve varied resistance levels without increasing the number of weights, enhancing the range of exercises that can be performed with improved efficiency and versatility.
Implementation Method 1
a carriage assembly with at least one upper and at least one lower pulley. First and second cable ends are reeved around the upper and lower pulleys, respectively
Implementation Method 2
The cable end extending between the pulleys may be used with exercise handles or bars. An exercise member is associated with a second carriage assembly above or below the first carriage assembly.
Data Source
AI summary
An apparatus for communicating exercise resistance includes a carriage assembly with at least one upper and at least one lower pulley. First and second cable ends are reeved around the upper and lower pulleys, respectively, and are coupled to a source of selectable exercise resistance. An exercise member is selectively coupled to the two cable ends such that movement of the exercise member away from the carriage is subject to a first exercise resistance when only one of the cable ends is attached and is subject to a second, greater exercise resistance when both cable ends are attached.