Golf Club Head Structure for CG Shift and Face Flex
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Solution Overview
Problem
Existing golf club heads face challenges in optimizing the center of gravity (CG) and moment of inertia (MOI) to achieve desired trajectory and spin rates, limiting performance enhancement.
Innovation Solution
The golf club heads are manufactured using multiple materials and structural designs, including a hollow body with internal cavities filled with different filler materials and strategically positioned mass portions, to optimize CG and MOI, and a thin face portion with grooves for enhanced flexibility and energy transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple materials are used to manufacture golf club heads, then the center of gravity and moment of inertia can be optimized to produce certain trajectory and spin rate, but the device complexity increases
Solution Approach 1:
The golf club head is divided into multiple functional zones with different materials: a titanium-based material body for the main structure, tungsten-based material inserts for weight concentration, and a stainless steel face for durability. This segmentation allows independent optimization of center of gravity position and moment of inertia for each material zone, achieving precise trajectory and spin rate control while managing complexity through modular construction
Solution Approach 2:
The patent employs composite material construction by combining titanium-based materials, tungsten-based materials, and stainless steel in a single club head. This composite approach enables the integration of lightweight structural components with high-density weighting elements, allowing simultaneous optimization of center of gravity location and moment of inertia distribution to produce desired ball flight characteristics
2Use of energy by moving object
If a thin face portion with grooves is used, then flexibility and energy transfer are enhanced, but the strength may be compromised
Solution Approach 1:
The face portion is constructed as a thin, flexible shell with grooves that allow controlled deformation during impact. This thin-face design enables enhanced flexibility and energy transfer to the golf ball while the groove pattern provides structural reinforcement, preventing catastrophic failure while maintaining the desired flex characteristics for improved energy transfer efficiency
Data Source
AI summary
Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head includes a body portion including a toe portion edge and a heel portion edge, a port connecting an interior portion and an exterior portion of the body portion, and a back wall portion having a lower and upper back wall portions, a ledge portion between the lower and upper back wall portions, and at least one rib portion on the upper back wall portion. The golf club head includes a filler material at least partially filling the interior portion, a cover portion covering the port, and a mass portion coupled to the body portion and being closer to the toe portion edge than to the heel portion edge. Other examples and embodiments may be described and claimed.