Weight Plate Lifting Flanges for Safe Handling
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Solution Overview
Problem
Weight plates, especially heavier ones with flat sides, are difficult to lift and maneuver due to their flat surfaces, posing risks of injury from dropping or pinched fingers during handling and loading onto bars or machines.
Innovation Solution
The weight plate design features radial inner and outer flanges on either side of central slots, allowing users to easily grasp and lift the plates by inserting fingers beneath the flanges, reducing the risk of injury and improving handling and loading efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If weight plates have flat sides for stable stacking, then stacking stability is improved, but ease of lifting deteriorates
Solution Approach 1:
The weight plate is segmented by adding slots that divide the plate structure into distinct regions. These slots create separate lifting surfaces (flanges) that allow users to grasp the plate without compromising the overall flat-sided structure needed for stable stacking.
Solution Approach 2:
The invention adds a new dimensional feature (flanges extending radially from the plate surface) that provides additional gripping surfaces. This doesn't alter the primary flat-sided geometry for stacking but adds elevation in another dimension to facilitate lifting.
2Stability of the object's composition
If weight plates have flat surfaces for stable placement, then placement stability is improved, but ease of grasping deteriorates
Solution Approach 1:
The flat surface is segmented by introducing slots that create distinct gripping zones. Users can insert fingers into these slots to grasp the plate securely, while the remaining flat surfaces maintain stability for placement.
Solution Approach 2:
The flanges act as intermediary structures between the user's hands and the weight plate. They provide a mediating surface that facilitates grasping without requiring direct contact with the main flat plate body, thus preserving placement stability.
3Weight of moving object
If weight plates are made heavier for increased resistance, then training effectiveness is improved, but safety deteriorates
Solution Approach 1:
The flanges are pre-positioned on the weight plate to enable safe grasping before the lifting action begins. This preliminary structural feature allows users to securely grip heavy plates from the start, preventing slips and drops that would compromise safety.
Solution Approach 2:
The flange structure provides a cushioning effect by distributing the user's grip force across a larger surface area and providing mechanical advantage. This reduces the risk of sudden slips or drops that could cause injury when handling heavy weights.
4Ease of manufacture
If weight plates have simple flat geometry for ease of manufacture, then manufacturing simplicity is improved, but handling safety deteriorates
Solution Approach 1:
The manufacturing process is segmented into forming the main plate body and then adding the slot features. This allows the bulk of the plate to be manufactured simply while the safety-enhancing slots are added as relatively straightforward subsequent operations.
Solution Approach 2:
The complex flange features are localized to specific regions of the plate rather than requiring complex geometry throughout. This allows most of the plate to maintain simple flat geometry for easy manufacturing, while only localized areas have the additional safety features.
Data Source
AI summary
A weightlifting apparatus includes a weight plate having a first side and an opposed second side. A central aperture extends through the weight plate. A pair of first slots extend through the weight plate. A first inner flange extends radially outwardly from an inner wall of each first slot on the first side of the weight plate. A first outer flange extends radially inwardly from an outer wall of each first slot on the second side of the weight plate. A pair of second slots extend through the weight plate. A second inner flange extends radially outwardly from an inner wall of each second slot on the second side of the weight plate. A second outer flange extends radially inwardly from an outer wall of each second slot on the first side of the weight plate.