Density-Adjustable Weightlifting Plates for Stable Lifts
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Solution Overview
Problem
Conventional weightlifting plates have inconsistent volumes and weights, making it difficult to achieve desired weight adjustments without altering their physical dimensions, which can affect stability and starting positions during lifts.
Innovation Solution
Development of weightlifting plates constructed from a density-adjustable composition, such as semi-flex urethane foam, allowing for varying weights within a common volume by adjusting the concentration of foaming agents, enabling plates with the same dimensions to have different weights.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional weightlifting plates are used with different weights, then weight adjustment is achieved, but the volume and dimensions vary, affecting stability and starting positions
Solution Approach 1:
The patent applies parameter changes by modifying the density of the plate material through varying the concentration of foaming agents in the composition. This allows plates of different weights to be created while maintaining identical volume and dimensions, directly resolving the technical contradiction between weight adjustment and volume consistency.
Solution Approach 2:
The patent uses composite materials consisting of a base material combined with foaming agents to create a density-adjustable composition. This composite approach enables precise control over plate density and weight while maintaining uniform dimensions across different plate weights.
2Weight of moving object
If plates with different volumes are used to achieve weight adjustments, then weight variation is possible, but stability and starting positions during lifts are affected
Solution Approach 1:
By changing the density parameter of the plate material through foaming agent concentration, the patent achieves weight variation without volume change. This maintains consistent plate dimensions and stability during lifts, resolving the contradiction between weight adjustment and stability.
3Weight of moving object
If conventional plates with varying dimensions are used, then weight adjustment is achieved, but consistency in starting positions is compromised
Solution Approach 1:
The patent resolves the contradiction by changing the density parameter rather than the volume parameter. Plates are manufactured with identical dimensions but different densities, achieving weight adjustment while maintaining precise dimensional consistency for uniform starting positions.
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 weightlifting plates with consistent dimensions to have adjustable weights, improving stability, consistency in starting positions, and accommodating various user heights, while being durable enough to prevent damage during use.
Implementation Method 1
allowing for varying weights within a common volume by adjusting the concentration of foaming agents
Data Source
AI summary
Weightlifting plates might be constructed of various materials. For example, a density-adjustable composition might be used that allows respective weight amounts plates to differ, while the plate volumes remain consistent. As such, in a set of weightlifting plates, each plate in the set includes a common volume (e.g., diameter and thickness) and a different respective weight amount. In addition, the weight plates can be combined with a barbell.