Multi-Piece Golf Club Head With Durable Adhesive Bonding
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Solution Overview
Problem
Conventional multi-piece golf club heads face challenges in maintaining strong and durable bonds between components, leading to degradation and reduced performance due to high impact forces during ball strikes, while also limiting discretionary mass distribution.
Innovation Solution
A golf club head design featuring multiple pieces adhesively bonded together, utilizing a combination of materials with varying densities and structures to enhance bond strength and distribute mass effectively, including a strike plate made of fiber-reinforced polymer and metallic components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding is used to bond pieces together, then bond strength and durability are improved, but mass increases due to use of metallic materials
Solution Approach 1:
The patent changes the bonding method from welding to adhesive bonding, which allows use of non-metallic materials with lower density. This parameter change in bonding technique enables mass reduction while maintaining structural integrity through proper adhesive selection and application.
Solution Approach 2:
The patent employs composite materials including carbon fiber reinforced polymers and other non-metallic composites that provide sufficient strength for golf club head construction without the mass penalty of metals. These composite materials enable adhesive bonding while achieving both strength and weight reduction goals.
2Weight of moving object
If adhesive bonding is used to join pieces, then mass is reduced through use of non-metallic materials, but bond durability deteriorates under high impact forces
Solution Approach 1:
The patent optimizes adhesive bonding parameters including adhesive selection, bond line thickness, and curing conditions to achieve durable bonds that withstand repeated high-impact forces during golf ball strikes. Proper parameter control ensures bond reliability while maintaining mass reduction benefits.
Solution Approach 2:
The patent incorporates preliminary surface preparation and adhesive application procedures that create strong initial bonds before impact loading. This preliminary bonding action ensures proper load transfer and prevents bond degradation during subsequent use, addressing durability concerns before they arise.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design provides enhanced durability and performance by maintaining bond integrity under impact forces and optimizing mass distribution for improved inertia and forgiveness.
Implementation Method 1
a multi-piece golf club head that has strong and durable bonds between the pieces of the golf club head... adhesively bonded together
Data Source
AI summary
A golf club head that includes a plate opening, a plate-opening recessed ledge defining the plate opening, and a strike plate attached to the plate-opening recessed ledge. The golf club head also comprises a hollow interior cavity. At least a portion of a top half of the plate-opening recessed ledge is made of a first material having a first density and at least a portion of a bottom half of the plate-opening recessed ledge is made of a second material having a second density that is greater than the first density. The top half of the plate-opening recessed ledge is closer to a crown portion of the golf club head than the bottom half of the plate-opening recessed ledge and the bottom half of the plate-opening recessed ledge is closer to a sole portion of the golf club head than the top half of the plate-opening recessed ledge.