Golf Coupling Mechanism for Adjustable Loft, Lie, and Shaft Length
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Solution Overview
Problem
Current golf club fitting methods require a large inventory of shafts and club heads to accommodate different user dimensions, leading to excessive storage needs and inefficiencies.
Innovation Solution
A golf coupling mechanism that adjusts club head loft angle, lie angle, and shaft length using a single shaft, featuring an off-axis tilt, arcuate couplers, and removable spacers/extenders to minimize inventory requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a large inventory of shafts and club heads is maintained to accommodate different user dimensions, then fitting accuracy is improved, but storage space requirements increase
Solution Approach 1:
The coupling mechanism incorporates adjustable components including an adjustable lie plate and length adjustment mechanism that allow dynamic modification of club specifications. The lie plate can be rotated to different angles to adjust lie angle, and length adjusters can be positioned at different locations along the shaft to change shaft length, enabling a single club head to adapt to multiple user dimensions without requiring multiple static club head inventories
Solution Approach 2:
The coupling mechanism is designed as a universal interface that can accommodate various shaft types and configurations through standardized adjustment mechanisms. The same coupling mechanism can work with different shaft lengths, lie angles, and club head types, allowing one club head to serve multiple fitting purposes across different users through the adjustable coupling system
2Adaptability or versatility
If multiple club heads and shafts are inventoried to fit different users, then adaptability to user dimensions is improved, but device complexity increases
Solution Approach 1:
The coupling mechanism is divided into separate adjustable components including a lie plate, length adjusters, and a coupling mechanism body. Each component can be independently adjusted and reconfigured, allowing the system to adapt to different user dimensions by modifying individual segments rather than requiring entirely different club heads or shafts in the inventory
Solution Approach 2:
The coupling mechanism enables continuous adjustment of key parameters including lie angle (through rotation of the lie plate), shaft length (through repositioning length adjusters), and loft angle. By allowing parameter changes within ranges rather than discrete fixed configurations, the system achieves high adaptability to user dimensions while maintaining a simpler, more flexible inventory structure
Data Source
AI summary
Embodiments of golf coupling mechanisms for joining golf club heads and shafts are described herein. The golf coupling mechanism allows for adjustment of a club head loft angle, a club head lie angle, and a golf club shaft length while utilizing one club head and one shaft. In a fully extended configuration, the golf coupling mechanism includes a shaft sleeve, a removable spacer, and a removable extender, wherein a fastening assembly secures the golf coupling mechanism to the golf club head. In a contracted configuration, the golf coupling mechanism includes the shaft sleeve. The golf coupling mechanism further includes a shaft cap to soften the interaction between the shaft and the golf coupling mechanism. The golf coupling mechanism further comprises one or more arcuate coupler sets to frictionally lock the shaft relative to the golf club head.