Multi-Material Golf Club Head Lap Joint for Seamless Bonding
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Solution Overview
Problem
Existing multi-material golf club heads face challenges in securely joining different components to withstand impact forces while maintaining aesthetic appeal by minimizing visual distractions from differing materials.
Innovation Solution
A golf club head design that incorporates a body portion and a crown portion with strategically positioned overlaps and recesses, using a lap joint bond to align the parting line with existing visual cues, ensuring a seamless aesthetic integration and varying overlap lengths to accommodate stress distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple materials are used to improve performance, then the functional performance is improved, but the visual aesthetics deteriorate due to visible material differences
Solution Approach 1:
The patent applies local quality by creating different overlap lengths at different locations around the club head perimeter. The overlap varies from approximately 12mm at the front to 6mm at the back, allowing each region to be optimized for its specific functional requirements while maintaining overall aesthetic coherence through the varying visual cues
Solution Approach 2:
The patent employs asymmetry by deliberately making the overlap length non-uniform around the club head perimeter. The front overlap is greater than the rear overlap, creating an asymmetric configuration that matches the natural visual cues and contours of the club head, thereby concealing the material junction more effectively
2Weight of moving object
If lightweight materials are used to reduce weight, then the weight is reduced, but the bond strength between materials deteriorates
Solution Approach 1:
The patent resolves this contradiction by transitioning from a simple planar joint to a three-dimensional overlapping configuration. The crown portion extends beyond the body portion in the width dimension, creating a lap joint that distributes stresses across multiple dimensions and increases bond strength without adding significant weight
Solution Approach 2:
The patent utilizes composite materials by combining a body portion made of heavier material (such as metal) with a crown portion made of lighter material (such as composite). This allows the club head to achieve reduced overall weight while maintaining sufficient bond strength through the strategically designed overlap and lap joint configuration
3Shape
If the parting line is positioned at existing visual cues to improve aesthetics, then the visual appearance is improved, but the structural integrity may be compromised
Solution Approach 1:
The patent applies segmentation by dividing the club head into distinct body and crown portions with clearly defined overlapping regions. This segmentation allows the parting line to be positioned at aesthetically pleasing visual cues while the overlap regions provide the necessary structural integrity to withstand impact forces
Data Source
AI summary
A multi-material golf club head wherein the junction between the two different components made from different materials are seamlessly incorporated within existing visual cues of a golf club head is disclosed. More specifically, the present invention adjusts the design of the bond between the two different components to reflect the needs of the golf club head at the various visual cues around the perimeter of the golf club head.