Golf Club Head Toe Insert for Face Flex Control
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Solution Overview
Problem
Hollow body irons in golf clubs face challenges with unpleasant acoustics and complex construction, lacking a simple design that balances high forgiveness, pinpointed weighting, and performance characteristics for improved shot accuracy.
Innovation Solution
A multi-material golf club head design featuring a lightweight polymeric composite toe insert with a backstop to prevent over-flexing of the strike face, allowing for maximum flexing without durability issues, combined with a metallic body for structural support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hollow body iron construction is used, then forgiveness and ball speed are improved, but acoustics become unpleasant and construction complexity increases
Solution Approach 1:
The club head combines a hollow body structure with a toe insert made of different material properties to achieve both forgiveness and improved acoustics. The composite construction allows the body to provide structural hollowness for forgiveness while the insert material modifies the acoustic characteristics.
Solution Approach 2:
The club head is divided into distinct segments: a hollow body and a separate toe insert. This segmentation allows each component to be optimized independently - the body for structural integrity and forgiveness, and the insert for acoustic properties and weighting.
2Speed
If face panel flexibility is increased, then ball speed is improved, but structural durability decreases
Solution Approach 1:
The toe insert uses composite materials with specific mechanical properties that allow it to work with the flexible face panel. The insert material provides durability and structural support while allowing the face panel to flex freely for ball speed optimization.
Solution Approach 2:
The toe insert acts as an intermediary element between the flexible face panel and the hollow body. It provides structural mediation that allows the face panel to be flexible for speed while ensuring overall structural durability through the insert's reinforcing presence.
3Reliability
If multi-material construction is used, then forgiveness and weighting precision are improved, but manufacturing complexity increases
Solution Approach 1:
The multi-material construction is segmented into a body and a toe insert that can be manufactured separately and then assembled. This segmentation simplifies the manufacturing process compared to monolithic multi-material construction, while still achieving precise weighting through the insert's position and material properties.
Solution Approach 2:
Different materials are applied to different local regions of the club head - the body and the toe insert - to achieve optimal local properties. The toe insert provides localized weighting precision and acoustic improvement without requiring the entire club head to be complex multi-material construction.
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 achieves high ball speed and shot accuracy by allowing the face to flex while preventing structural failure, providing a balanced impact response and improved acoustic properties.
Implementation Method 1
allowing the face to flex while preventing structural failure
Implementation Method 2
The backstop can be configured to temporarily contact the face panel when it bends during dynamic impact
Data Source
AI summary
The golf club head described herein can have a metal body and a non-metal insert. The insert forms an entire toe end of the club head. The insert can have an offset surface, located behind the strike face of the body, wherein the insert and strike face form a gap therebetween. The insert offset surface can comprise a backstop that temporarily restricts bending of a center of the strike face during a golf ball impact. The gap between the strike face and the insert allows the strike face to flex while the backstop prevents the strike face from over flexing. In one embodiment, the golf club head can comprise a body having an interior cavity that opens towards a toe end. The insert can form an outermost surface of the toe end and fill a portion of the cavity.