Dual-Motor Exercise Assembly for Adjustable Resistance Training
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional fitness devices are limited to training single muscle groups, occupy space, and can cause injuries due to excessive weight resistance beyond user strength.
Innovation Solution
A fitness device incorporating a linear motor and a rotary motor to provide integrated resistive forces through combined rotational and linear motions, allowing versatile training with adjustable resistance levels and ensuring safe exercise postures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If traditional fitness devices use weight of bar plates to provide resistive force, then users can achieve muscle-training effects, but users with insufficient physical strength may suffer sports injuries
Solution Approach 1:
The patent changes the parameter of resistive force from fixed weight-based resistance to dynamically adjustable electromagnetic resistance. The motors can precisely control the magnitude of resistive force applied to the user, allowing the resistance to be adapted to the user's physical strength and training level, thereby preventing injuries while maintaining training effectiveness.
Solution Approach 2:
The patent replaces the traditional mechanical weight-based resistance system with an electromagnetic motor system. Instead of using physical bar plates whose weight provides resistance, the system uses motors to generate controlled resistive forces, enabling precise adjustment and elimination of safety risks associated with excessive weight.
2Adaptability or versatility
If multiple fitness devices are used to train different muscle groups, then training versatility is improved, but indoor space occupation and equipment cost increase
Solution Approach 1:
The patent designs a single fitness device that can perform multiple training functions by adjusting the control parameters of the motors. The device can provide different resistive force patterns, movement trajectories, and exercise modes to train various muscle groups, replacing the need for multiple specialized fitness devices and thereby reducing space occupation.
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 efficient, safe, and targeted muscle training across multiple groups without the risk of injury, optimizing space usage and reducing equipment costs.
Implementation Method 1
the linear motor outputs a linear resistive force in response to the movement of the exercise assembly
Implementation Method 2
the first rotary motor outputs a rotational resistive force in response to the rotation of the exercise assembly
Data Source
AI summary
A fitness device including an exercise assembly is provided. The exercise assembly includes a first rotary motor and a linear motor. A user applies an exerted force to operate the exercise assembly according to different movement trajectories of multiple training movements, such that the exercise assembly is driven by the linear motor to move linearly along an axis, and is driven by the first rotary motor to rotate. The first rotary motor outputs a rotational resistive force in response to the rotation of the exercise assembly, the linear motor outputs a linear resistive force in response to the movement of the exercise assembly, and the rotational resistive force and the linear resistive force are combined to form an integrated resistive force. The exerted force is greater than the integrated resistive force.