Composite Golf Club Face Layup for Tuned Rebound Rigidity
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Solution Overview
Problem
Existing golf club heads with fiber reinforced resin faces lack design flexibility in achieving optimal rebound properties.
Innovation Solution
A golf club head with a face member comprising a quasi-isotropic layered structure of fiber reinforced resin layers, optionally enhanced by distinct fiber-orientation, fiber-amount increasing, or high elastic layers, to create anisotropy and improve rebound performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a fiber reinforced resin face member is used in golf club heads, then strength and durability are improved, but design flexibility regarding rebound properties is limited
Solution Approach 1:
The face member is segmented into multiple fiber reinforced resin layers, each with independently controllable fiber orientation angles. This segmentation allows different regions of the face to have different fiber orientations (e.g., 0°, 90°, 45°, 135°), enabling localized optimization of rebound properties while maintaining overall structural strength.
Solution Approach 2:
Different layers of the face member are assigned different fiber orientation angles to create local variations in mechanical properties. For example, layers with 0° and 90° orientations provide strength in respective directions, while 45° and 135° orientations optimize rebound characteristics. This local quality variation allows the face member to simultaneously achieve strength and tailored rebound properties in different regions.
2Ease of manufacture
If fiber orientation is standardized in fiber reinforced resin layers, then manufacturing simplicity is maintained, but rebound property optimization is limited
Solution Approach 1:
The invention changes the fiber orientation angle parameter across different layers while maintaining the same basic layering process. By systematically varying fiber orientation angles (0°, 90°, 45°, 135°) in a quasi-isotropic pattern, the patent achieves optimized rebound properties without fundamentally changing the manufacturing process, thus maintaining ease of manufacture while improving reliability.
Solution Approach 2:
The face member uses a composite structure of multiple fiber reinforced resin layers with different fiber orientations. This composite approach combines layers with 0°, 90°, 45°, and 135° orientations to create a material system that exhibits both high strength and optimized rebound characteristics, resolving the contradiction between manufacturing simplicity and rebound property optimization.
3Stability of the object's composition
If uniform fiber orientation is used throughout the face member, then structural consistency is maintained, but anisotropic rigidity distribution for performance optimization is achieved
Solution Approach 1:
The invention introduces asymmetry in fiber orientation angles across different layers while maintaining overall structural consistency. The quasi-isotropic pattern uses asymmetric combinations of 0°, 90°, 45°, and 135° orientations in specific sequences, creating anisotropic rigidity distribution that optimizes rebound performance while preserving the structural integrity of the face member.
Data Source
AI summary
A head includes: a face member including fiber reinforced resin layers; and a body member. The face member includes a quasi-isotropic layered portion, and one or more configurations selected from the following (x) to (z): (x) a configuration that includes a distinct fiber-orientation layer containing fibers oriented at a predetermined fiber orientation angle different from fiber orientation angles of the fiber reinforced resin layers in the quasi-isotropic layered portion; (y) a configuration that includes a fiber-amount increasing layer relatively increasing an amount of fibers at a predetermined fiber orientation angle selected from the fiber orientation angles of the fiber reinforced resin layers in the quasi-isotropic layered portion; and (z) a configuration that includes a high elastic layer having a relatively high fiber elastic modulus at a predetermined fiber orientation angle selected from the fiber orientation angles of the fiber reinforced resin layers in the quasi-isotropic layered portion.