Variable Length Golf Club Shaft Using Interchangeable Sections
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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 for average golfers to modify club length without professional assistance or incurring significant costs.
Innovation Solution
A variable length golf club shaft system featuring a grip assembly with a semi-permanent fastener that connects the grip to the shaft, allowing for quick and easy length adjustments using interchangeable upper shaft portions without damaging the original shaft or grip, and a tool for securing the fastener.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the grip is removed and the shaft is trimmed or extended using traditional methods, then the club length can be adjusted, but the original shaft and grip are damaged and require expensive tools and components
Solution Approach 1:
The shaft is divided into multiple interchangeable sections (first shaft section, second shaft section, third shaft section) that can be swapped without damage. The grip assembly is separated from the shaft portions, allowing independent replacement of shaft sections while preserving the grip and base shaft structure.
Solution Approach 2:
Instead of permanently modifying expensive shafts and grips, the invention uses disposable or replaceable shaft sections that can be easily swapped. If a shaft section becomes damaged or worn, it can be replaced without affecting the overall club structure or requiring expensive repair tools.
2Length of moving object
If traditional shaft length adjustment methods are used, then club length can be modified, but specialized tools and high technical skill are required
Solution Approach 1:
The shaft system transitions from a static, permanent configuration to a dynamic, adjustable configuration. Shaft sections can be easily interchanged by loosening and tightening fasteners, allowing the club length to be dynamically adjusted without specialized tools or skills.
Solution Approach 2:
The shaft sections are designed with user-friendly fastening mechanisms that allow golfers to adjust club length themselves without needing professional club fitters or technicians. The system is self-service oriented, with simple assembly and disassembly procedures that any golfer can perform.
3Length of moving object
If the entire shaft is replaced to adjust length, then the correct length can be achieved, but it is expensive and requires professional assistance
Solution Approach 1:
The shaft is segmented into modular sections that can be independently replaced. Instead of replacing the entire shaft, only the specific section that needs length adjustment is swapped, significantly reducing material consumption and cost.
Solution Approach 2:
When adjusting club length, only the necessary shaft section is removed or replaced, while the remaining shaft portions are retained and reused. This selective replacement approach recovers and preserves valuable shaft material, reducing overall cost.
4Length of moving object
If traditional methods are used to adjust club length, then length modification is possible, but it requires inventory of spare components and above average technical skill
Solution Approach 1:
The shaft sections are designed with universal compatibility features, allowing the same fastening mechanism and connection interface to be used across different shaft sections. This universality simplifies the adjustment system, eliminating the need for multiple specialized components or tools.
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.