Hand-Free Resistance Training Device with Pivoting Arms
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Solution Overview
Problem
Existing training devices do not effectively exercise the back and shoulders without the use of hands, limiting the range and intensity of hand-free workouts.
Innovation Solution
A resistance training device comprising a frame with a bench, backrest, pivotally coupled arms, and a resistor system that allows users to exercise their back and shoulders by resisting arm pivoting, using adjustable resistance and pulley mechanisms to target the muscles effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing training devices are used for hand-free exercising, then the user can perform some back and shoulder exercises, but the effectiveness and range of hand-free workouts is limited
Solution Approach 1:
The device divides the resistance mechanism into separate arms that can be independently positioned and adjusted. Each arm can be customized to target specific muscle groups (back, shoulders) independently, allowing for a wider range of hand-free exercise variations while maintaining effective muscle engagement through focused resistance application.
Solution Approach 2:
The arms are made pivotally coupled to the frame, allowing dynamic adjustment of arm positions and angles during exercise. This enables users to customize the range of motion and resistance vectors to target different muscle groups effectively, expanding the versatility of hand-free workouts while maintaining exercise effectiveness through adaptable positioning.
2Adaptability or versatility
If fixed resistance mechanisms are used, then the device structure is simple, but the workout intensity and muscle engagement cannot be customized
Solution Approach 1:
The resistor system allows users to change resistance parameters by selecting different resistor positions and configurations. The mechanism provides adjustable resistance levels through movable resistor components that can be positioned at different locations along the arms, enabling customization of workout intensity without requiring complex electronic controls or multiple fixed resistance settings.
Solution Approach 2:
The resistor system is designed to provide multiple resistance levels and configurations through a single integrated mechanism. The same resistor components serve multiple functions by being repositionable along the arms, allowing one device to replace what would otherwise require multiple fixed-resistance mechanisms, thus increasing adaptability while managing complexity.
3Adaptability or versatility
If arms are fixed in position, then the device is easier to manufacture, but the ability to target different muscle groups is reduced
Solution Approach 1:
The arms utilize pivotal couplings that allow rotation and angle adjustment while maintaining structural integrity. This dynamic connection method enables customizable arm positions for targeting different muscle groups without requiring complex adjustable mechanisms, as the pivotal joints provide natural rotational freedom that can be secured at various angles through simple locking features.
Solution Approach 2:
The arms are pre-configured with pivotal couplings and positioning features during manufacturing, allowing users to easily adjust angles later without requiring complex assembly procedures. The preliminary setup of the pivotal joints enables straightforward angle customization by the user, reducing manufacturing complexity while maintaining adaptability.
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 effective hand-free exercising of the back and shoulders, providing adjustable resistance levels and customizable angles to enhance muscle engagement and workout intensity.
Implementation Method 1
The resistor is positioned to resist the user's effort to pivot the arms relative to the frame
Implementation Method 2
using adjustable resistance and pulley mechanisms to target the muscles effectively
Data Source
AI summary
A resistance training device for hands-free exercising of the back and shoulders includes a frame. A bench is coupled to the frame and is configured to seat a user. A backrest is coupled to the frame proximate to a rear edge of the bench. A pair of arms is pivotally coupled singly to opposing side supports of the frame. A resistor is operationally coupled to the pair of arms. The arms are positioned on the frame such that the arms are configured to abut elbows of the user seated on the bench. The resistor is positioned to resist the user's effort to pivot the arms relative to the frame, thus exercising the back and shoulders of the user without use of the user's hands.