Golf Club Insert With Formed Metal Sheet
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Solution Overview
Problem
Existing golf club inserts fail to achieve a high thickness and volume while maintaining low weight, which affects the moment of inertia and player confidence, as they are often placed on the rear surface rather than the striking face.
Innovation Solution
A golf club insert with a non-metallic component and a continuous, formed metal sheet that extends vertically to create the appearance of high mass, using a stamping process to form a complex contour without stretching the metal sheet, coupled with an adhesive to the club head, achieving a high thickness and volume while maintaining low weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a heavy mass is placed in the central region of the striking face to improve player confidence and feel, then the moment of inertia increases and player confidence improves, but the weight of the club head increases
Solution Approach 1:
The insert uses a metallic component with high density material strategically positioned in the central region of the striking face to concentrate mass where it provides maximum benefit for moment of inertia and player confidence, while the rest of the club head maintains lower weight
Solution Approach 2:
The insert combines a non-metallic resilient backing component with a metallic sheet component, creating a composite structure that provides both vibration dampening and concentrated mass in a single integrated component
2Volume of moving object
If the insert thickness is increased to improve vibration dampening and create high mass appearance, then the volume and vibration control improve, but the weight increases
Solution Approach 1:
The metallic component extends vertically to create the appearance of high mass and volume in the central region, while the overall insert thickness is controlled to limit total weight increase
Solution Approach 2:
The metallic component uses a thin sheet (0.01 mm to 3.0 mm thick) that is formed into a complex three-dimensional contour, creating the appearance of substantial volume and mass without the weight of a solid block of equivalent external dimensions
3Shape
If the metallic component is formed with complex contours to maximize material usage, then the mass distribution and appearance improve, but the manufacturing complexity increases
Solution Approach 1:
The patent replaces traditional stretching forming processes with a stamping process that uses controlled constraint and material flow to form complex three-dimensional contours in the metallic sheet without requiring excessive stretching, simplifying the manufacturing process
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 insert provides improved shot trajectory and sweet spot location, enhancing player confidence by creating the impression of high mass without the actual weight, thus improving performance.
Implementation Method 1
An adhesive member is located between, and couples, the base surface of the insert and the main body
Implementation Method 2
inserts may include a visco-elastic, or resilient, material component capable of damping vibrations
Implementation Method 3
Sometimes, such components are combined with mass elements, optionally having higher densities and/or greater rigidity, further providing vibration tuning/control
Data Source
AI summary
An insert for a golf club head, wherein the insert includes a generally planar base surface and a maximum thickness, Tmax, measured perpendicular to the base surface. The insert further includes a first component comprising a non-metallic material, and a second component coupled to the first component and comprising a continuous, formed metal sheet having a thickness between 0.01 mm and 3.0 mm, the second component extending a maximum distance, D, in a direction perpendicular to the base surface, that is no less than 6 mm. The insert is configured such that a ratio D/Tmax is no less than 0.50.