Ring-Shaped Hand-Grip Strength Trainer with Dynamic Center of Gravity
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Solution Overview
Problem
Existing hand-grip strength training equipment, such as barbell systems, dumbbells, and wearable training systems, lack versatility in hand-grip location variations, grip intensity, and weight distribution, limiting their effectiveness for hand-grip strength training and full-body exercises, and are not easily transportable.
Innovation Solution
A ring-shaped weight with radially tapering cross-sections, allowing hand-gripping at any position, varying grip intensity, and weight distribution, featuring an opening for four fingers and a surface generated by rotating variable radii to provide incremental moments and torque variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional barbell or dumbbell systems are used, then weight training function is provided, but versatility in hand-grip location and grip intensity is limited
Solution Approach 1:
The trainer features a dynamic center of gravity that shifts along the longitudinal axis based on hand-grip location, enabling variable moments and torque without requiring multiple fixed-weight components. This dynamic property allows one piece of equipment to provide multiple training intensities and grip variations.
Solution Approach 2:
The trainer serves multiple functions: it can be gripped at any position along its length, provides variable resistance through center of gravity shift, and enables both hand-grip and full-body exercises. This multi-functionality replaces the need for multiple specialized equipment pieces.
2Adaptability or versatility
If barbell systems with multiple discs or one-piece barbells are used, then weight training is enabled, but storage and transportation space requirements increase
Solution Approach 1:
The trainer combines handle and weight into a single integrated unit with a streamlined elongated shape. This merging eliminates the need for separate weight plates and bars, reducing the overall volume required for storage and transportation while maintaining training versatility.
Solution Approach 2:
One trainer unit replaces multiple barbells of different weights and configurations, providing full-body strength training capabilities in a single compact device that requires minimal storage space.
3Ease of operation
If wearable training systems with radially located weights are used, then portability is improved, but total weight and moment variation are limited
Solution Approach 1:
The trainer's center of gravity dynamically shifts along its longitudinal axis as the user changes grip position, creating variable moments and torque. This dynamic characteristic provides adaptable resistance variation that wearable systems with fixed radial weights cannot achieve.
Solution Approach 2:
The trainer enables parameter changes in resistance by altering hand-grip location along the longitudinal axis, which shifts the center of gravity and changes the moment arm. This provides continuous variability in training intensity without requiring multiple weight configurations.
Data Source
AI summary
A hand-held training weight is useful in the development of hand-grip, wrist and arm strength. The hand-held training weight is ring-shaped and has radial cross-sections tapering from a smallest cross-sectional area to a greatest cross-sectional area and back to the smallest cross-sectional area in a closed-loop path. All of the cross-sectional areas are sized to be hand-gripped. The user can grip the weight with one hand at any location on the weight and extend the forearm to position the weight at a desired distance and direction from the user's body. The user can relocate the grip incrementally until the grip returns to the original grip location. At each incremental grip location the user can incrementally change the orientation of the forearm to create a personal training regimen.