Telescoping Golf Club Shaft with Locking Bar
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Solution Overview
Problem
Current methods for adjusting golf club length are complex, requiring expensive tools, skilled labor, and damage to the shaft or club head, making it inaccessible to average golfers who want to modify their clubs for improved performance.
Innovation Solution
A variable length golf club shaft system comprising a hollow upper and lower shaft with expandable inserts and locking mechanisms, allowing for quick and easy length adjustments without damaging the club, using composite materials and a weighted cap for balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If traditional methods (cutting shaft or replacing grip) are used to adjust club length, then length adjustment is achieved, but the shaft and grip are damaged and expensive tools/skills are required
Solution Approach 1:
The shaft is divided into multiple telescoping segments (first shaft portion, second shaft portion, third shaft portion) that can slide relative to each other. This segmentation allows length adjustment without damaging the shaft, as the segments are designed to move smoothly within one another while maintaining structural integrity.
Solution Approach 2:
The shaft portions are nested within each other in a telescoping arrangement, where the second shaft portion is received by the first, and the third shaft portion is received by the second. This nesting structure enables compact storage and easy length adjustment without requiring external tools or causing damage to the shaft or grip.
2Length of moving object
If traditional methods are used to adjust club length, then length change is possible, but expensive components and tools are required
Solution Approach 1:
The shaft incorporates self-contained adjustment mechanisms including locking blocks with cam surfaces, springs for automatic engagement, and textured surfaces for grip. These features allow the golfer to adjust the length using only their hands without requiring expensive external tools or specialized skills, making the system economically accessible.
Solution Approach 2:
The invention replaces expensive traditional adjustment methods (shaft cutting, grip replacement) with a reusable telescoping mechanism that can be adjusted multiple times. The modular design with replaceable shaft portions allows cost-effective length changes without investing in expensive equipment or professional services.
3Length of moving object
If traditional methods are used to adjust club length, then length adjustment is achieved, but high skill level is required
Solution Approach 1:
The shaft incorporates self-contained adjustment mechanisms including locking blocks with cam surfaces, springs for automatic engagement, and textured surfaces for grip. These features allow the golfer to adjust the length using only their hands without requiring expensive external tools or specialized skills, making the system economically accessible.
Solution Approach 2:
The shaft portions include visual indicators (such as colored bands or markings) that show alignment positions for different lengths. This visual feedback system guides users through the adjustment process, eliminating the need for specialized knowledge or measurement skills while ensuring accurate length selection.
4Adaptability or versatility
If telescoping shaft portions are used, then length adjustment is enabled, but shaft stability may be compromised
Solution Approach 1:
The shaft transitions from a static fixed-length structure to a dynamic telescoping system that can adapt its length while maintaining stability. The locking blocks with cam surfaces and spring mechanisms provide secure locking in selected positions, ensuring the shaft remains stable during use while allowing easy adjustment when needed.
Solution Approach 2:
The shaft is divided into multiple telescoping segments (first shaft portion, second shaft portion, third shaft portion) that can slide relative to each other. This segmentation allows length adjustment without damaging the shaft, as the segments are designed to move smoothly within one another while maintaining structural integrity.
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, with minimal technical skill required, and allowing adjustments to be made on the golf course or at home.
Implementation Method 1
inserting the locking bar into the engaging insert causes the expanding portion to expand, the at least one protrusion to engage with at least one of the plurality of the holes on each of the upper shaft and the lower shaft, and the portion of the lower shaft to press against the portion of the upper shaft
Data Source
AI summary
A variable length golf club shaft is disclosed herein. The variable length shaft includes a hollow lower shaft with a plurality of holes, a hollow upper shaft with at least one protrusion extending from an inner surface that is sized to fit within the plurality of holes, and an unlocking bar. The shaft length can be adjusted by sliding the upper shaft over the lower shaft and using the unlocking bar to release the protrusion from the holes to allow overall shaft length adjustments. in another embodiment, the variable length shaft includes a hollow lower shaft, a hollow upper shaft, an engaging insert, and a locking bar.