Golf Club Head Crown Grid Ribs for Sound and CG Control
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Solution Overview
Problem
Hollow golf club heads suffer from excessive hitting sound and a long center of gravity, leading to reduced flight distance due to the deterioration of ball catch performance.
Innovation Solution
A golf club head design featuring a grid-form rib structure on the inner surface of the crown, with additional ribs positioned on the heel side, divided rib-surrounding regions, and a specific slope angle to enhance strength and reduce stress concentration, thereby improving hitting sound and flight distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a hollow head design is used, then hitting sound is enhanced, but center of gravity distance increases leading to deteriorated ball catch performance
Solution Approach 1:
The patent applies local quality by providing ribs at specific locations on the inner surface of the crown, particularly concentrating structural elements in regions that affect both sound characteristics and center of gravity positioning. The ribs are strategically placed to locally modify stiffness and mass distribution without requiring complete structural reinforcement throughout the entire crown.
Solution Approach 2:
The crown's inner surface is segmented into multiple rib structures that divide the hollow space into distinct regions. This segmentation allows independent optimization of different zones - some areas enhanced for sound characteristics while others are positioned to control center of gravity location, thereby resolving the contradiction between hitting sound quality and ball catch performance.
2Strength
If ribs are added on the inner surface of the crown, then structural strength is improved, but device complexity increases
Solution Approach 1:
The rib structure is segmented into multiple individual ribs rather than using a single complex reinforcement element. Each rib can be independently designed and positioned to address specific structural weaknesses, making the overall strengthening solution more manageable and less complex than alternative approaches.
Solution Approach 2:
Rather than uniformly reinforcing the entire crown, ribs are provided only at specific locations on the inner surface where structural support is most needed. This localized approach enhances strength while minimizing the addition of structural complexity compared to comprehensive reinforcement schemes.
Data Source
AI summary
To provide a golf club head excellent in hitting sound and flight distance performance. A head includes a face, a crown and a sole. The crown has an inner surface on which grid-form rib is provided. When a region on which the grid-form rib is provided is defined as a rib region, an additional rib is further provided on the rib region. The additional rib is positioned on a heel side relative to a face center. Preferably, the grid-form rib is formed by intersection of first ribs extending in a substantially toe-heel direction and second ribs extending in a substantially face-back direction. Preferably, the additional rib is sloped to be closer to a back side as approaching to the heel side.