Constant-Speed Exercise Pulley Without Counterweight Resistance

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional bodybuilding devices rely on counterweights and predetermined resistance, limiting user control over force and speed, which restricts personalized exercise experiences.

Innovation Solution

A system that uses a microprocessor-controlled pulley system with speed sensors and a brake mechanism to maintain constant movement speed, independent of the applied force, allowing users to adjust force levels based on their capability, without the need for counterweights.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If counterweights are used to provide resistance, then force levels are predetermined and controlled, but user control over speed is limited and force-speed coupling is fixed

Engineering Contradiction:

Improveuser control over force and speedVSAvoidsystem structure with counterweights

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent removes the counterweight component from the system entirely. Instead of using counterweights to provide resistance, the invention uses a motorized winch system that can dynamically control both force and speed independently through electronic control, thereby extracting the limiting element (counterweights) while maintaining the core function of resistance exercise.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The system transitions from static counterweight resistance to dynamic motorized control. The winch motor can dynamically adjust both force output and speed of cable movement independently, allowing the exercise parameters to change dynamically during exercise execution rather than being fixed by predetermined counterweight positions.

Inventive Principle:

Principle #15Dynamics

2Adaptability or versatility

If conventional bodybuilding devices use predetermined resistance, then the exercise parameters are fixed, but user personalization is restricted

Engineering Contradiction:

Improvepersonalized exercise experienceVSAvoidadjustment flexibility

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system enables independent adjustment of multiple parameters (force level, speed, range of motion) through electronic control of the motorized winch. Users can program different exercise profiles with specific force-speed combinations, allowing comprehensive personalization of exercise parameters without mechanical reconfiguration.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent replaces the mechanical resistance system (counterweights and springs) with an electro-mechanical system. The motorized winch with electronic control substitutes for traditional mechanical resistance mechanisms, enabling programmable and easily adjustable exercise parameters through software rather than mechanical changes.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If speed and force are coupled in conventional systems, then the relationship between movement speed and resistance is fixed, but training specificity is limited

Engineering Contradiction:

Improvetraining program varietyVSAvoidconstant speed maintenance

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system uses speed sensors to continuously monitor cable movement velocity and provides feedback to the control system. The controller adjusts motor output in real-time to maintain the programmed speed regardless of variations in user force application, ensuring constant speed execution while allowing force to vary according to training requirements.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system dynamically decouples the traditional force-speed relationship by using independent control channels. The motor controller can maintain constant speed while independently regulating force output through torque control, allowing the exercise to progress through different phases with optimized force-speed combinations for specific training goals.

Inventive Principle:

Principle #15Dynamics

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 customize their exercise experience by controlling force levels up to 500 kg, providing a more personalized and efficient workout by decoupling speed from force, allowing for a wider range of exercises and increased user engagement.

Implementation Method 1

a speed sensor (4), which constantly measures the speed of the movement

Methodology Applied

Scientific EffectSpeed sensor detection:

Implementation Method 2

a brake (5), whose operation is controlled by a microprocessor (2)

Methodology Applied

Scientific EffectFriction braking: Friction

Data Source

PatentUS10953266B2System for performing physical exercises at a constant speed of a movement

Publication Date: 2021.03.23 LEOPOLDO DA CAMARA FILHO CARLOS ALBERTO

AI summary

The present invention applies to the field of exercise devices and bodybuilding and muscle building devices. This invention describes a system applied in exercise devices, preferably for the performance of the activity of bodybuilding, without the use of a counterweight, in which the system is based on the speed of the movement, independent of the applied force.