Golf Club Head Convexo-Concave Wall Rigidity
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Solution Overview
Problem
Reducing the thickness of the wall in a hollow golf club head to lower the center of gravity while maintaining rigidity, as thinner walls can compromise the structural integrity and performance.
Innovation Solution
Implementing a convexo-concave wall structure with patterned protrusions and concaved portions that are made of metal, where the convexed portions extend in one direction and second protrusions extend in a perpendicular direction, allowing for reduced thickness without compromising rigidity, and occupying a significant area of the golf club head's surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the wall thickness is reduced to lower the center of gravity and mass, then the mass distribution design freedom is improved, but the rigidity of the golf club head deteriorates
Solution Approach 1:
The invention transitions from a flat wall structure to a three-dimensional convexo-concave structure by adding height dimension to the wall surface. The convexed portions protrude outward and concaved portions recess inward, creating a patterned relief structure that increases structural rigidity without increasing the overall wall thickness, thus resolving the contradiction between mass reduction and rigidity maintenance.
Solution Approach 2:
The wall surface is designed with curved convexed and concaved portions rather than flat or angular features. These curved structures distribute stress more effectively and provide structural reinforcement similar to how domes and arches strengthen architectural structures, allowing thinner walls to maintain adequate rigidity.
2Adaptability or versatility
If the wall thickness is reduced to enable mass reduction, then the flexibility of mass distribution design is improved, but the structural integrity of the head deteriorates
Solution Approach 1:
By adding vertical dimension through convexo-concave patterning, the invention creates structural reinforcement within the limited wall thickness budget, enabling designers to reduce overall wall thickness while maintaining structural integrity through the three-dimensional surface features.
Solution Approach 2:
The wall surface is segmented into multiple convexed and concaved portions arranged in patterns, creating distributed reinforcement zones throughout the wall structure. This segmentation provides multiple load paths and stress distribution points, enhancing structural integrity while allowing overall thickness reduction.
Data Source
AI summary
A golf club head having a cavity therein comprises a wall at least a part of which is formed as a convexo-concave wall portion. The convexo-concave wall portion is composed of convexed portions repeatedly arranged in a first direction and a second direction intersecting the first direction, and concaved portions formed between the convexed portions. Each of the convexed portions includes at least one first protrusion extending in the first direction and at least one second protrusion extending in the second direction.