Adjustable Golf Club Hosel for Independent Angle Control
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Solution Overview
Problem
Conventional golf club head and shaft connections are permanently mounted using cements or adhesives, limiting the ability to easily test and adjust different club head/shaft combinations, increasing inventory costs and fitting session duration.
Innovation Solution
A system for connecting golf club heads to shafts in a releasable and adjustable manner, allowing independent adjustment of face angle, loft angle, and lie angle using a hosel assembly, adjustment ring, and securing system, enabling easy modification of club head properties without the need for multiple permanently mounted combinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If golf club heads are permanently mounted to shafts using cements or adhesives, then the connection strength and stability are improved, but the adaptability and ease of adjustment are worsened
Solution Approach 1:
The golf club is divided into separable components (club head, shaft, and connection assembly) that can be easily disconnected and reconnected. The connection assembly includes a shaft receiver in the club head and a corresponding shaft insert with engagement features, allowing the shaft to be removed and replaced without permanent bonding. This segmentation enables easy adjustment of different shafts and club head combinations while maintaining strong connection through mechanical engagement features.
2Adaptability or versatility
If multiple permanently mounted golf club head/shaft combinations are carried to enable testing, then the adaptability for fitting is improved, but the device complexity and inventory requirements are worsened
Solution Approach 1:
The connection assembly is designed as a universal interface that can accommodate multiple different shafts and club head configurations through a single standardized mechanism. The shaft insert with its engagement features can be paired with various club heads and shafts, allowing one connection assembly to serve multiple fitting scenarios. This eliminates the need to carry multiple permanently mounted combinations, reducing inventory requirements while maintaining extensive fitting options.
3Ease of manufacture
If conventional permanent mounting methods are used, then the manufacturing simplicity is improved, but the ease of repair and adjustment is worsened
Solution Approach 1:
The connection system transitions from a static permanent bond to a dynamic reversible mechanical connection. The shaft insert engages with the shaft receiver through mechanical features (such as tangs in recesses or interlocking geometries) that allow easy insertion and removal. This dynamic connection maintains manufacturing simplicity through straightforward mechanical assembly while dramatically improving ease of adjustment and repair, enabling quick changes during fitting sessions without complex tools or procedures.
Data Source
AI summary
Aspects of this invention relate to structures and methods for connecting golf club heads to shafts in a releasable and adjustable manner allowing independent adjustability of face angle, loft angle, and lie angle of a club head. Assemblies for connecting the club head and shaft may include: (a) a hosel assembly; (b) an adjustment member; and (c) a securing system for releasably and adjustably securing the hosel assembly and adjustment member to the club head. The face angle, loft angle, and lie angle may be independently adjusted by releasing the securing system and rotating the different structures or exchanging the original parts with different parts.