Handlebar Grip Recessed Portion Pressure Redistribution
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Solution Overview
Problem
Conventional handlebar grips cause uneven distribution of palm pressure, leading to numbness, tingling, and hand weakness due to excessive pressure on the ulnar nerve and ulnar artery, particularly affecting the ring and little fingers.
Innovation Solution
The handlebar grip features an inward portion, an outward portion, and a recessed portion with varying diameters and tapered regions, which redistributes pressure to the medial nerve and radial artery, reducing discomfort and enhancing grip strength by aligning fingers more effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional handlebar grips are used with cylindrical or bulging configurations, then the grip structure is simple and easy to manufacture, but the pressure distribution on the hand becomes uneven causing numbness and tingling
Solution Approach 1:
The grip features a recessed portion with a smaller outer diameter located between the inward and outward portions, creating localized variations in the grip surface geometry. This local quality change redistributes pressure away from the ulnar nerve and ulnar artery areas to other regions of the hand, eliminating numbness and tingling while maintaining overall grip functionality
Solution Approach 2:
The grip design incorporates asymmetric diameter variations along its length, with the recessed portion creating an non-uniform pressure distribution pattern. This asymmetric geometry strategically places pressure on beneficial areas of the hand while relieving pressure from sensitive nerves and arteries, resolving the contradiction between simple manufacturing and harmful pressure effects
2Device complexity
If conventional handlebar grips are used, then the grip structure is straightforward, but the palm pressure is concentrated on the ulnar nerve and ulnar artery causing hand weakness
Solution Approach 1:
By introducing a recessed portion with reduced outer diameter between the inward and outward portions, the grip creates localized pressure relief zones. This local geometric modification redirects palm pressure away from the ulnar nerve and ulnar artery to less sensitive areas, eliminating hand weakness and tingling without significantly increasing overall device complexity
Solution Approach 2:
The invention modifies the outer diameter parameter along the length of the grip, creating a recessed portion with a smaller diameter than the adjacent inward and outward portions. This parameter variation changes the pressure distribution characteristics, improving hand comfort and grip strength by preventing nerve and artery compression
3Object-affected harmful factors
If the grip has a recessed portion with varying diameter, then pressure is redistributed to improve comfort, but the grip shape becomes more complex
Solution Approach 1:
The recessed portion creates a localized geometric feature with a smaller outer diameter than the adjacent sections. This local shape modification is sufficient to redistribute pressure and eliminate numbness and tingling without requiring complex overall grip geometry, maintaining manufacturing feasibility while achieving the desired pressure redistribution effect
Data Source
AI summary
A handlebar grip including an inward portion defining an inward portion outer diameter, an outward portion defining an outward portion outer diameter, and a recessed portion, located between the inward portion and the outward portion, and defining a recessed portion outer diameter that is less than the inward portion outer diameter and the outward portion outer diameter.