Weight Disc Coupling via Integrated Bar Pins
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Solution Overview
Problem
Existing weightlifting systems require the use of external coupling elements like bar clamps or safety collars to secure weight discs on a bar, which can be cumbersome and pose safety risks if not properly secured, slowing down exercises and increasing the risk of accidents.
Innovation Solution
A bar and disc assembly where the discs are coupled using pins inserted into holes on the bar, eliminating the need for external clamps, with rails and holes providing secure retention without requiring pressure application, suitable for both conventional and Olympic bars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external coupling elements like bar clamps or safety collars are used to secure weight discs, then the discs are retained on the bar, but the device complexity increases and the operation becomes cumbersome
Solution Approach 1:
The patent removes external coupling elements (bar clamps, safety collars) from the system entirely. Instead, the bar itself is designed with integrated coupling features - specifically, coupling elements that are part of the bar structure rather than separate external components. This extraction of external elements simplifies the overall device while maintaining disc retention security.
Solution Approach 2:
The coupling function is merged into the bar structure itself. Rather than having separate external clamps or collars, the bar incorporates coupling elements directly into its design, combining the support function and the coupling function into a single integrated structure. This reduces device complexity while maintaining reliability.
2Reliability
If external clamps are used to prevent disc slippage, then disc security is improved, but the time required for disc changes increases
Solution Approach 1:
The coupling elements are pre-positioned and pre-configured on the bar at specific locations. The discs are designed with corresponding features that align with these pre-positioned coupling elements. This preliminary arrangement allows for rapid attachment and detachment without requiring complex manipulation of external clamps during the disc change process, thus reducing the time loss while maintaining security.
3Reliability
If conventional coupling methods are used, then discs can be secured, but pressure must be applied to the union between discs and bar which reduces user safety
Solution Approach 1:
Instead of applying external pressure through clamps or collars to secure the discs, the invention inverts the approach by using the bar's own structure to provide the coupling force. The integrated coupling elements engage with the discs through a different mechanism that does not require external pressure application, thereby eliminating the harmful factor of pressure-induced instability while maintaining coupling security.
Data Source
AI summary
A bar and weight discs assembly with disc holding elements intended for sports reveals a set with a bar and at least one disc for weight exercises or weightlifting, where said set is obtained by coupling the discs to the bar without the need to use other coupling means such as bar clamps or safety collars, the set can be used both for an exercise bar of the conventional type of 28 mm in diameter or for an Olympic bar of 50 mm in diameter, as well as the discs that are inserted in the bar (1) which can be of different weights.