Barbell Adapter Linkage Connectors Rotation
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Solution Overview
Problem
Existing barbell systems are limited by fixed connection points, preventing the use of multiple linkages and rotation, which restricts the types of resistance that can be applied and increases the risk of torque and injury during exercises like bench pressing.
Innovation Solution
A versatile adapter device with a split collar and connection bolts that allows for the attachment of various linkages such as metallic chains, elastomeric cords, and non-elastic straps, enabling rotation and adjustable resistance, while being inexpensive and intuitive to use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed connection points are used on the barbell, then the structure is simple and reliable, but the versatility and ability to use multiple linkages is limited
Solution Approach 1:
The adapter is divided into multiple connection points distributed along the barbell shaft, allowing independent attachment of different linkages at various locations. This segmentation enables versatile configurations (chains, bands, straps) without requiring a completely complex redesign of the entire barbell system.
Solution Approach 2:
The adapter serves multiple functions by accommodating different types of linkages (metallic chains, elastomeric cords, non-elastic straps) and supporting various exercise configurations. A single adapter device provides universal compatibility across multiple exercise types and resistance mechanisms.
2Object-affected harmful factors
If fixed connection points are used on the barbell, then the device is simple to manufacture, but torque buildup and injury risk increase during exercises
Solution Approach 1:
The adapter allows dynamic rotation of the barbell relative to the linkages during exercise. The connection mechanism enables the barbell to rotate freely within the adapter structure, preventing torque buildup that would occur with rigid fixed connections, while maintaining secure attachment of the linkages.
3Adaptability or versatility
If multiple linkages are attached simultaneously, then exercise versatility increases, but the risk of interference and injury increases
Solution Approach 1:
Multiple linkages are attached at separate, distributed connection points along the barbell shaft rather than clustered at a single location. This spatial segmentation prevents interference between linkages during movement and reduces the risk of injury by distributing mechanical loads across multiple attachment points.
Data Source
AI summary
A rigid adapter for use with a barbell and one or more linkages that each have a first end and a second end, such as chains, elastomeric straps, safety looped nylon straps, or the like. The adapter includes a split collar that has an aperture therethrough adapted to receive the barbell, and two halves that each have a threaded aperture. One or more connection bolts are adapted to engage the threaded aperture of one of the halves of the split collar and include a linkage connection adapted for connecting with one of the linkages. Such a connection bolt may be an eye bolt, a J-shaped hook, a rectangular shaped hook, or the like. A resistance band buckle is fixed with the split collar and terminate at a resistance band connector. A spin collar can be used to allow the split collar to rotate on the barbell.