Actuator Geared Feedback for Smooth Resistance Mode Shifting

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Solution Overview

Problem

Traditional resistance training equipment is often specialized, inefficient, and lacks versatility, requiring multiple devices for varied exercises, and fails to provide user feedback on form and balance, with gear shifting issues common in existing machines.

Innovation Solution

A multi-motor resistance training machine with an actuator geared feedback system that includes a gear shifting mechanism with perfect mechanical alignment, using splines and engagement points to ensure smooth transitions between isotonic and isokinetic modes, and provides real-time feedback on form and balance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional resistance training equipment is used, then specific exercises can be performed, but the equipment lacks versatility and requires multiple devices for varied exercises

Engineering Contradiction:

Improveexercise mode versatilityVSAvoidnumber of equipment pieces

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The resistance training machine is designed with a multi-functional capability to perform both isotonic and isokinetic exercises through a single device. The system includes mode selection mechanisms and adjustable resistance components that enable it to adapt to different exercise types, eliminating the need for multiple specialized equipment pieces while maintaining exercise versatility

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If gear shifting mechanism is implemented to change resistance levels, then resistance adjustment is enabled, but mechanical misalignment and shifting failures occur

Engineering Contradiction:

Improveresistance adjustmentVSAvoidgear shifting reliability

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system performs preliminary alignment checks and preparatory actions before gear shifting occurs. The control system pre-positioning mechanisms ensure that gear components are properly aligned before engagement, preventing misalignment issues and shifting failures during operation

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system incorporates feedback mechanisms that monitor gear position and alignment status. Sensors detect the mechanical state of the gear system and provide real-time information to the control system, which adjusts shifting commands to ensure proper engagement and prevent shifting failures

Inventive Principle:

Principle #23Feedback

3Ease of operation

If electronic motors are used to provide resistive forces, then force adjustment to user's strength level is enabled, but the machines are limited in force production and difficult to transport

Engineering Contradiction:

Improveforce adjustmentVSAvoidmachine portability

Core Design Contradiction:

Ease of operationVSWeight of moving object

Solution Approach 1:

The system employs dynamic force adjustment capabilities where the resistance levels can be modified during operation based on user performance and strength levels. The electronic control system allows real-time modification of resistive forces without requiring physical reconfiguration or adding/removing weight components, maintaining force adaptability while reducing overall system weight

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS20250262471A1Actuator geared feedback system for a resistance training machine and methods of use

Publication Date: 2025.08.21 SPEEDE FITNESS LLC

AI summary

Provided herein are Actuator Geared Feedback Systems for a Resistance Training Machines and Methods of Use.