Golf Club Head Compression Channel for Impact Energy Transfer
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Solution Overview
Problem
Existing golf club heads suffer from significant energy loss during impact with a golf ball due to deformation of the ball, which reduces energy transfer and velocity.
Innovation Solution
Incorporation of a compression channel across the sole of the golf club head with specific geometric features, including asymmetric cross-sectional shape, varying wall thickness, and angles, to enhance energy transfer and reduce deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the club head is made rigid to maintain structural integrity, then strength is improved, but energy transfer efficiency deteriorates due to inability to flex and absorb impact forces
Solution Approach 1:
The club head incorporates a compression channel with varying wall thicknesses (thinner in center, thicker at ends) and an asymmetric cross-section, creating localized flexibility zones while maintaining overall structural integrity. This allows different regions of the club head to have different mechanical properties - flexible where needed for energy absorption, rigid where needed for structural support
Solution Approach 2:
The compression channel design enables the club head to dynamically flex and rebound during impact. The channel allows controlled deformation of the club head body upon ball impact, converting the rigid structure into a dynamic system that can absorb and release energy, thereby improving energy transfer efficiency while maintaining strength
2Area of stationary object
If the face area is increased to enlarge the hot zone, then the area of greatest response is improved, but manufacturing precision deteriorates due to complexity of maintaining uniform thickness and properties
Solution Approach 1:
The face is divided into functional zones using the compression channel as a boundary. The channel creates distinct regions with different mechanical properties - the center region with thinner walls for flexibility and the end regions with thicker walls for structural support. This segmentation allows each zone to be optimized independently while simplifying manufacturing by providing clear geometric guides for forming operations
Solution Approach 2:
The compression channel employs an asymmetric cross-sectional shape rather than a symmetric design. This asymmetry creates natural variations in wall thickness and flexibility across the face, allowing the manufacturer to achieve desired performance characteristics without requiring ultra-precise control of uniform thickness. The asymmetric geometry inherently provides the needed variation in mechanical properties across different face regions
3Loss of energy
If compression channels are added to improve impact efficiency, then energy transfer is improved, but device complexity increases due to additional structural features
Solution Approach 1:
The compression channel serves multiple functions simultaneously: it acts as a structural reinforcement element, an energy absorption mechanism, a weight distribution feature, and a guide for forming operations. By integrating these multiple functions into a single structural feature, the design improves energy transfer efficiency without proportionally increasing complexity - the channel is one feature that accomplishes several goals at once
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 channel configuration improves the coefficient of restitution (COR) and efficiency of energy transfer, resulting in increased ball velocity and performance.
Implementation Method 1
allowing for flexing and reactive forces during impact, which enhances energy transfer and reduces ball deformation
Data Source
AI summary
A ball striking device, such as a golf club head, has a face with a striking surface configured for striking a ball and a channel extending across a portion of the sole. The channel may be recessed from adjacent surfaces of the sole and have a depth of recession from the adjacent surfaces of the sole. The channel may have a cross-sectional profile that is asymmetric with a front wall and a rear wall where the front wall is longer than the rear wall. The channel may also have a center thickness that is different than a thickness at the heel and toe sides.