Weight Plate Internal Locking Mechanism for Barbell Safety
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Solution Overview
Problem
Conventional weight plates require external clamping mechanisms for secure attachment to barbells, leading to safety concerns and liability issues due to the potential for insufficient clamps in large gym settings.
Innovation Solution
A weight plate system with an internal locking mechanism that includes a pull lever, lock plate, and pull rod, allowing for secure axial and rotational fixation to the barbell without external tools, featuring alignment grooves and pins for stable connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If external clamping mechanisms are used to secure weight plates to barbells, then the weight plates can be attached to the barbell, but safety concerns and liability issues arise due to insufficient clamps in large gym settings
Solution Approach 1:
The patent combines the clamping function with the weight plate itself by integrating a clamp mechanism directly into the plate structure. The clamp is formed as part of the weight plate body, eliminating the need for separate external clamping devices. This merging resolves the contradiction by maintaining secure attachment reliability while reducing device complexity and the number of separate components needed.
Solution Approach 2:
The weight plate's integrated clamp mechanism is designed to be self-contained and self-operating. The spring-loaded clamp automatically engages with the barbell when the plate is placed on it, and can be released by manipulating the plate or its handles. This self-service approach eliminates the need for separate external clamps and reduces liability concerns in gym settings.
2Reliability
If separate clamping devices are used, then weight plates can be secured to barbells, but users must locate and apply clamps after installing plates, increasing time and potential safety risks
Solution Approach 1:
The clamp mechanism is pre-integrated into the weight plate structure during manufacturing, rather than being applied separately afterward. The spring-loaded clamp is already positioned and configured to engage with the barbell, so users simply need to place the plate on the barbell and the clamp automatically secures it. This preliminary action eliminates the time loss associated with locating and applying separate clamps.
Solution Approach 2:
By merging the clamp function into the weight plate itself, the patent eliminates the sequential steps of placing the plate and then applying a separate clamp. The integrated design allows both functions to occur simultaneously, reducing the time required to secure weight plates to barbells.
3Reliability
If external clamps are used to secure weight plates, then the connection between barbell and weight plate can be maintained, but the system requires additional components that increase device complexity and storage requirements
Solution Approach 1:
The patent merges the clamping function directly into the weight plate structure, eliminating the need for separate external clamp components. The clamp is formed as an integral part of the plate body, reducing the total number of components from multiple separate pieces (plate + external clamp) to a single integrated unit. This resolves the contradiction by maintaining reliable connection while reducing device complexity.
Solution Approach 2:
The integrated clamp mechanism serves multiple functions within a single component structure. The weight plate simultaneously provides its primary weight-bearing function and the secondary clamping function, eliminating the need for dedicated external clamping devices and reducing overall system complexity.
Data Source
AI summary
A barbell comprises a substantially cylindrical elongated bar having a plurality of connectors located along the length thereof. A generally disk shaped weight plate having a central aperture and a peripheral handle is provided, and the barbell is received within the central aperture. A fastening assembly is formed on the weight plate and extends between the central aperture and the peripheral handle. The fastening assembly is selectively movable between a first position in which it engages with one of the connectors on the barbell, and a second position in which it is disengaged from the connector on the barbell.