Grip Assist Spine Insert for Axle Bar Wrapping
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Solution Overview
Problem
Existing grip assist technologies for weightlifting do not effectively protect the hands and wrists when using heavier weights with larger diameter bars, as standard grips are either too short or too stiff to accommodate the increased size, leading to inadequate support and protection during exercises like deadlifts.
Innovation Solution
A grip assist apparatus featuring a pliable gripping portion with a spine insert made of flexible materials like annealed spring steel or polypropylene webbing, allowing users to wrap their fingers around a 2-inch or larger axle bar and providing sufficient resilience to return to its original shape, combined with a wrist portion and straps for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If standard grips are used for axle bars, then the grip material is stiff enough to be accessible to fingertips with normal bars, but the grip sticks out from the axle bar so that it cannot be reached with the axle bar
Solution Approach 1:
The grip is divided into multiple segments or sections with different flexibility characteristics. The distal portion (farther from the wrist) is made more flexible than the proximal portion, allowing the grip to conform to the larger diameter of axle bars while maintaining structural integrity and stiffness where needed for finger engagement.
Solution Approach 2:
Different portions of the grip have different mechanical properties. The grip material varies in stiffness along its length, with the distal end being more pliable to wrap around axle bars and the proximal end being stiffer to provide structural support and facilitate finger access. This local variation in quality resolves the contradiction between needing stiffness for accessibility and flexibility for wrapping.
2Strength
If grip material is made stiff to be accessible to fingertips with normal bars, then the grip provides structural support, but the grip sticks out from the axle bar making it unreachable
Solution Approach 1:
The grip is segmented into regions with different stiffness properties, allowing the distal portion to bend and conform to the axle bar's larger diameter while the proximal portion maintains structural support. This segmentation enables the grip to achieve both the necessary curvature and structural integrity simultaneously.
Solution Approach 2:
The mechanical parameters of the grip material are changed along its length, specifically varying the stiffness or flexibility parameter from the proximal to distal end. This gradient in material properties allows the grip to transition from a stiffer, structurally supportive region to a more flexible, conformable region, resolving the contradiction between maintaining shape and achieving curvature.
3Length of moving object
If standard grip length is used, then the grip works with normal bars, but the grip is not long enough to wrap around the axle bar
Solution Approach 1:
The grip is divided into functional segments with varying lengths and flexibility characteristics. The distal portion is extended and made more flexible to accommodate wrapping around axle bars, while the proximal portion maintains its original length and stiffness for structural support. This segmented approach increases effective length without proportionally increasing overall device complexity.
Solution Approach 2:
The grip incorporates dynamic flexibility that allows it to extend and conform to the larger diameter of axle bars when needed, while maintaining its functional length for normal operations. The variable flexibility along the grip's length enables it to dynamically adapt its effective wrapping length without requiring a uniformly longer, more complex structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus enables secure grip and protection for the hands and wrists during weightlifting with heavier weights, allowing users to comfortably handle axle bars by ensuring the gripping portion can be easily wrapped around the bar and remains in place, dispersing force effectively across the hand.
Implementation Method 1
The gripping portion is sufficiently pliable to be bent to allow a user to reach the end with their fingers and wrap the gripping portion around an axle bar but sufficiently resilient to substantially return to its starting position after the gripping portion is released
Data Source
AI summary
A grip assist apparatus for weightlifting that includes a gripping portion with spine insert that is sufficiently pliable to be bent to allow a user to reach the end with their fingers and wrap the gripping portion around an axle bar but sufficiently resilient to substantially return to its starting position after the gripping portion is released.