Golf Club Head Low-Rigidity Zone for Rebound Performance
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Solution Overview
Problem
Hollow golf club heads with flexures enhance rebound performance but increase weight, making them harder to swing and potentially reducing flight distance.
Innovation Solution
A hollow golf club head design featuring a low-rigidity zone with through holes and oblique connecting portions along the peripheral edge, which reduces weight while improving rebound performance without increasing the head's overall weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flexure is added to the wall of the golf club head to enhance rebound performance, then the rebound performance is improved, but the weight of the golf club head increases
Solution Approach 1:
The wall of the golf club head is divided into multiple sections: rigid portions and low-rigidity portions (flexures) are segmented along the wall. This segmentation allows specific regions to deflect and store elastic energy while maintaining overall structural integrity, improving rebound performance without requiring additional weight throughout the entire head.
Solution Approach 2:
Different regions of the wall are assigned different rigidity properties. The rigid portions provide structural support and maintain head shape, while the low-rigidity portions (flexures) are strategically positioned to deflect during ball impact and store elastic energy. This localized differentiation optimizes rebound performance without increasing overall head weight.
2Reliability
If the weight of the golf club head is increased to improve rebound performance, then the rebound performance is enhanced, but the flight distance of the ball is reduced
Solution Approach 1:
The wall is designed with dynamic characteristics through the inclusion of low-rigidity portions that can deflect during ball impact. These flexures allow the head to dynamically respond to impact forces by storing and releasing elastic energy, enhancing rebound performance without adding excessive weight that would reduce ball flight distance.
3Weight of moving object
If the volume of the golf club head is reduced to compensate for weight increase, then the head weight is controlled, but the rebound performance is compromised
Solution Approach 1:
The wall is designed with different rigidity properties in different regions. Rigid portions maintain structural integrity and head volume, while low-rigidity portions (flexures) are strategically positioned to deflect during ball impact and store elastic energy. This localized differentiation optimizes rebound performance without increasing overall head weight or reducing head volume.
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 enhances rebound performance and increases ball flight distance by allowing for effective deformation during ball impact without adding weight to the golf club head.
Implementation Method 1
the main body is at least partially provided with a low-rigidity zone, the low-rigidity zone is provided with through holes penetrating the main body from the outside to the inside of the main body
Data Source
AI summary
A hollow golf club head comprises a face part having a face for striking a ball, and a main body extending rearward from the face part. The main body is provided with a low-rigidity zone which comprises through holes and connecting portions arranged alternately along a peripheral edge of the face. The through holes penetrate the main body from the outside to the inside of the main body. The connecting portions extend in the front-back direction of the head, and include an oblique connecting portion comprising an oblique part inclined with respect to the front-back direction.