Multi-Material Golf Club Head Joint Layout for Bond Strength
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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 strategically aligns the joint between the body and crown portions with existing visual cues, using a lap joint type of bond with varying overlap lengths to enhance both structural integrity and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If lightweight materials are used to replace metallic materials in the crown portion, then weight is reduced, but bonding strength between crown and body is insufficient
Solution Approach 1:
The patent uses composite materials by combining lightweight crown portion material with metallic body portion material. The crown portion is made from a lightweight material (such as polymer or composite) while the body portion remains metallic, creating a multi-material composite structure that achieves both weight reduction and structural integrity through proper material selection and bonding.
Solution Approach 2:
The golf club head is divided into separate components: a body portion and a crown portion. This segmentation allows each component to be optimized independently - the body portion can be made from metallic materials for strength, while the crown portion can use lightweight materials. The segmented design enables specialized bonding techniques to connect the different material types effectively.
2Weight of moving object
If lightweight materials are used to replace metallic materials in the crown portion, then weight is reduced, but aesthetic appearance deteriorates due to visual delineations
Solution Approach 1:
The patent applies local quality by strategically positioning the parting line between the crown and body portions at specific locations where it aligns with existing visual cues on the club head. This ensures that the material junction is hidden or minimized in areas where it would be most visually noticeable, while still allowing the lightweight material to be used for weight reduction. The design accepts that the junction will be visible but positions it where it creates minimal aesthetic disruption.
3Strength
If threaded fasteners are used to secure components, then structural integrity is improved, but aesthetic appearance deteriorates due to visible fasteners
Solution Approach 1:
The patent merges the bonding function with the aesthetic surface by using a bonding process that creates a seamless or minimally visible joint between the crown and body portions. Instead of using threaded fasteners that would be visible on the surface, the design combines the structural bonding requirement with the aesthetic requirement by using adhesive bonding or other fusion techniques that eliminate visible fasteners while maintaining structural integrity.
Solution Approach 2:
The patent extracts the fastening function from the visible surface by using hidden bonding methods. The threaded fasteners or mechanical connections are removed from the visible exterior and replaced with bonding techniques that occur at the material interface without creating visible fasteners on the club head's exterior surface.
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.