Composite Golf Club Shaft Structure for Swing Stability
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Solution Overview
Problem
Existing golf club shafts lack stability and consistency during a golf swing, affecting performance.
Innovation Solution
A golf club shaft design comprising a first tubular portion made of high-strength, malleable metal and a second tubular portion made of composite material with high strength-to-weight ratio, incorporating a spacer for smooth transition and sound/vibration dampening, and optionally reinforced with metal materials for enhanced stiffness and feel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a golf club shaft is made from a single material, then the manufacturing process is simple, but the stability and consistency during swing are insufficient
Solution Approach 1:
The patent applies composite materials by combining a metal inner tube (providing stiffness and structural integrity) with an outer layer (providing dampening and feel). This multi-material construction resolves the contradiction by achieving superior stability and consistency during swing through the synergistic properties of different materials, while accepting increased structural complexity compared to single-material shafts.
Solution Approach 2:
The patent segments the shaft into distinct functional zones: a metal inner tube portion and an outer layer portion with different material properties. This segmentation allows each portion to contribute its specific advantages (stiffness from metal, dampening from outer layer), thereby improving overall reliability and consistency during the swing.
2Strength
If the shaft uses high-strength materials, then the stiffness and strength are improved, but the weight increases
Solution Approach 1:
The composite construction allows the shaft to achieve high strength and stiffness through the metal inner tube while the outer layer provides additional functional properties. This resolves the contradiction by optimizing the strength-to-weight ratio through material selection and structural design, maintaining high performance without excessive weight gain.
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
The design provides improved stability and consistency in golf swings by combining materials with high stiffness and dampening properties, resulting in a more stable and responsive golf club shaft.
Implementation Method 1
incorporating a spacer for smooth transition and sound/vibration dampening
Data Source
AI summary
Examples of golf club shafts and methods to manufacture golf club shafts are generally described herein. In one example, a golf club shaft includes a first tubular portion formed from a first material and coupled to a second tubular portion having a plurality of layers formed from a second material and a third material. A reinforcing member is disposed in at least one of the plurality of layers and is formed from a fourth material. The reinforcing member extends a length that is less than or equal to a length of the second tubular portion. The first, second, third, and fourth materials are different from one another. Other examples and examples may be described and claimed.