Dynamic Weight Plate Retention Collar Vibration Absorption
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Solution Overview
Problem
Existing weight plate retention collars fail to effectively absorb vibration and impact, leading to loosening and potential injury or damage during heavy weightlifting exercises.
Innovation Solution
A dynamic weight plate retention collar with adjustable fasteners and replaceable contact patches that absorb shock and vibration, securely gripping the barbell through a combination of dynamic and static contact patches and a piston disk mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional weight plate retention collars are used, then the structure is simple and easy to manufacture, but the collar fails to absorb vibration and impact, leading to loosening and potential failure during repeated use
Solution Approach 1:
The collar is divided into multiple functional segments: a body collar, replaceable contact patches, and an adjustable fastener system. This segmentation allows each component to perform its specific function while maintaining overall reliability without excessive complexity.
Solution Approach 2:
The collar incorporates dynamic elements including a movable contact patch that can adjust its position and an adjustable fastener system that allows dynamic tightening and loosening. This dynamic capability enables the collar to adapt to vibration and impact during repeated use, preventing loosening while maintaining operational flexibility.
2Ease of repair
If the collar is designed with fixed contact patches, then the manufacturing is simple, but the contact patches cannot be replaced when worn, reducing serviceability
Solution Approach 1:
The contact patches are designed as separate, replaceable components that can be independently removed and replaced. This segmentation allows users to service only the worn parts rather than the entire collar, improving ease of repair while keeping the overall design relatively simple.
Solution Approach 2:
The contact patches are designed to be disposable or replaceable components that can be removed when worn. This allows users to discard worn patches and replace them with new ones, maintaining serviceability without requiring complex repair mechanisms for the entire collar assembly.
3Adaptability or versatility
If the collar uses static contact patches only, then the structure is simple, but the collar cannot adapt to vibration and impact during repeated exercises
Solution Approach 1:
The collar incorporates dynamic contact patches that can move and adjust their position in response to vibration and impact. This dynamic capability allows the collar to adapt to repeated exercises and maintain secure retention without requiring complex active control mechanisms.
Solution Approach 2:
The adjustable fastener system allows users to change the tightening parameter of the collar during use. This parameter adjustment capability enables the collar to adapt to varying levels of vibration and impact during different exercises, improving versatility while maintaining reasonable structural complexity.
4Reliability
If the collar lacks vibration absorption capability, then the manufacturing is simple, but the collar loosens and may fail during heavy weightlifting
Solution Approach 1:
The collar separates the vibration absorption function into a dedicated contact patch component that can be manufactured independently. This segmentation allows for simplified manufacturing of individual components while achieving reliable vibration absorption during heavy weightlifting through the combined functionality of the segmented design.
Data Source
AI summary
A barbell collar is described having a front ring coupled to a body collar. The body collar comprises three contact pockets formed into the body of the body collar. Three removable contact patches are inserted into the three contact pockets. One of the contact patches is dynamic and can be triggered to advance forward and retract backward by an attached adjustable fastener. The dynamic contact patch grips onto an outer surface of a barbell inserted into a cavity of the barbell collar. The other remaining contact patches are static and are not coupled to adjustable fasteners. The front ring is oriented towards a weight plate on a weighted barbell.