Golf Club Face Channels for Off-Center COR Response
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Solution Overview
Problem
Golf clubs often fail to transfer maximum energy to the ball during off-center hits due to the limited flexibility of the club face, leading to undesired ball flight paths and reduced distance, particularly for golfers who consistently hit the ball in specific areas like the low-heel or high-toe regions.
Innovation Solution
The golf club head features channels proximate to the edges, increasing the flexibility of the face and enlarging the region of highest coefficient of restitution (COR) response towards these impact areas, enhancing energy transfer and straighter ball flight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the club face is made rigid to maintain structural integrity, then strength is improved, but flexibility deteriorates leading to reduced energy transfer during off-center hits
Solution Approach 1:
The club face is segmented into multiple regions with different flexibility characteristics. Channels are strategically positioned to create distinct zones: a central region maintaining higher rigidity for structural integrity, and peripheral regions with increased flexibility for off-center hit compensation. This segmentation allows the face to exhibit both strength and adaptability simultaneously.
Solution Approach 2:
Different regions of the club face are given different mechanical properties through the channel configuration. The channels are positioned to create local flexibility variations, with greater flexibility in specific areas (such as heel and toe regions) while maintaining overall structural strength. This local quality differentiation enables the face to adapt to various impact locations while preserving structural integrity.
2Use of energy by moving object
If channels are added to increase flexibility and energy transfer, then energy transfer is improved, but device complexity increases
Solution Approach 1:
The channel system is segmented into a limited number of strategically positioned channels rather than a complex network. Typically 2-4 channels are used, each serving specific functional purposes. This segmentation achieves the flexibility enhancement goal while maintaining manufacturing simplicity and avoiding excessive structural complexity.
Solution Approach 2:
The channels modify the mechanical parameters of the club face (flexibility, stress distribution, COR profile) without changing the fundamental monolithic structure. By altering these parameters through channel geometry and positioning, the patent achieves improved energy transfer while keeping the overall device structure relatively simple and manufacturable.
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 channels enhance flexibility, directing the region of highest COR response to common off-center hit areas, resulting in increased energy transfer and improved straightness and distance of golf shots.
Implementation Method 1
increasing the flexibility of the face
Implementation Method 2
enlarging the region of highest coefficient of restitution (COR) response towards these impact areas
Data Source
AI summary
A ball striking device, such as a golf club, includes a head with a face having a ball-striking surface configured for striking a ball, a body connected to the face, and at least one channel in the ball-striking surface of the face. The region of highest COR response of the face is directionally enlarged toward the channel. Depending on the size, shape, and location of the channel, the face can be altered to provide greater COR response and increased energy transfer for impacts at specific locations on the face.