Variable Length Golf Club Shaft Using Threaded Fastener
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Solution Overview
Problem
Current methods for adjusting golf club length are complex, require specialized tools and components, and often damage the original shaft and grip, making it difficult and expensive for golfers to customize their clubs without professional assistance.
Innovation Solution
A variable length golf club shaft system comprising interchangeable upper and lower shaft portions connected by a threaded fastener, allowing for quick and semi-permanent length adjustments without damaging the existing club, using materials like aluminum, titanium, or graphite composite, and a tool for easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the grip is removed and the shaft end is trimmed or an extension piece is affixed to adjust club length, then the club length can be changed, but the original shaft and grip are damaged and require expensive components and tools
Solution Approach 1:
The shaft is divided into multiple sections (first shaft section, second shaft section, third shaft section) that can be independently assembled and disassembled. This segmentation allows length adjustment by simply attaching or detaching shaft sections without damaging the original shaft or grip structure.
Solution Approach 2:
The shaft assembly transitions from a fixed-length design to a dynamic, adjustable-length design through the use of removable connections. The first and second shaft sections can be detached and reattached to change the overall club length, providing adaptability without permanent modification.
2Length of moving object
If the entire shaft and grip are replaced using a head-shaft connection device, then club length can be adjusted, but the process is not possible on all clubs and requires expensive new components
Solution Approach 1:
Rather than replacing the entire shaft assembly, the invention segments the shaft into replaceable middle sections while keeping the grip and head portions intact. This allows length adjustment through selective replacement of only the necessary shaft sections.
Solution Approach 2:
The removable shaft section design creates a universal system that can be applied to various club types without requiring club-specific replacement procedures. The same principle of detachable shaft sections can be used across different clubs to achieve length adjustment.
3Length of moving object
If traditional methods are used to adjust club length, then length change is achieved, but the process requires above average technical skill and access to specialized tools
Solution Approach 1:
The system enables dynamic reconfiguration of shaft sections through simple attachment and detachment operations. This eliminates the need for complex tools or specialized skills, as the removable connections can be assembled and disassembled by users with basic动手能力.
Solution Approach 2:
The design allows golfers to perform their own shaft length adjustments without requiring professional club fitting services. The simplified attachment mechanism enables users to independently change club length by simply connecting or disconnecting shaft sections.
4Length of moving object
If aftermarket extensions are used to increase shaft length, then club length can be adjusted, but the extension piece must match the diameter of the existing shaft requiring additional materials and steps
Solution Approach 1:
The shaft is designed as segmented sections with standardized connection interfaces. The second shaft section serves as a pre-fabricated extension piece that integrates seamlessly with the first shaft section through complementary connection structures, eliminating the need for custom fitting or additional diameter-matching materials.
Solution Approach 2:
The connection structures between shaft sections act as intermediary elements that facilitate easy assembly. These intermediate connection mechanisms enable the second shaft section to be attached to the first section without requiring diameter matching or additional materials like tape.
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
Enables golfers to easily and inexpensively modify club length at any time, improving accuracy and distance without altering swing weight or feel, and can be done without professional help, using a simple and intuitive method.
Implementation Method 1
a threaded fastener removably connects the upper shaft portion to the lower shaft portion
Data Source
AI summary
A variable length shaft assembly comprising at least one upper shaft portion, a lower shaft portion and a threaded fastener, wherein the threaded fastener removably connects the upper shaft portion to the lower shaft portion, is disclosed herein. The variable length shaft assembly may further comprise at least two upper shaft portions having different lengths so a golfer can adjust the total length of the shaft by removing one upper shaft portion and replacing it with another upper shaft portion having a different length. Methods of adjusting the length of a golf club shaft without damaging any portion of the shaft and variable length shaft kits are also disclosed herein.