Putter Golf Club Head Sound Chamber Design
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Solution Overview
Problem
Existing putter-type golf club heads do not effectively amplify the sound when striking a golf ball, despite various modifications aimed at influencing sound frequencies.
Innovation Solution
A putter-type golf club head design featuring a sound chamber with a face insert composed of polymeric and metal materials, where the face insert has a central recess and a return portion, and a body with a central sound sub-chamber and outer sound sub-chambers, amplifying the sound generated upon impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a sound chamber is added to amplify sound, then sound amplification is improved, but device complexity increases
Solution Approach 1:
The face insert is nested within the sound chamber, with the polymeric material positioned inside the metal insert. This nested configuration allows multiple functional elements (sound chamber, metal insert, polymeric insert) to occupy the same spatial envelope, achieving complex sound modification functionality without proportionally increasing overall device volume or structural complexity
Solution Approach 2:
Different regions of the face insert have different material properties - the metal portion provides structural support and certain acoustic characteristics, while the polymeric portion provides different acoustic properties. This local differentiation of material quality within the sound chamber enables optimized sound amplification across different frequency ranges without requiring entirely separate components
2Measurement precision
If multiple materials are used in the face insert, then sound amplification is improved, but manufacturing complexity increases
Solution Approach 1:
The face insert combines metal and polymeric materials in a single integrated component. The metal insert provides structural integrity and certain acoustic properties, while the polymeric material nested within provides complementary acoustic characteristics. This composite construction achieves superior sound amplification by leveraging the complementary properties of different materials within a unified component design
Solution Approach 2:
The face insert is segmented into distinct metal and polymeric portions, each optimized for specific acoustic functions. The metal portion can be manufactured using conventional metal forming techniques, while the polymeric portion is molded and then integrated. This segmentation allows each material to be manufactured using its optimal process before assembly, balancing manufacturing ease with performance optimization
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 enhances the sound amplification of the putter-type golf club head, achieving a pitch range of 2400 to 2700 Hz, amplitude of 61.5 to 64.5 dBA, and duration of 25 to 45 milliseconds, providing an improved auditory experience for golfers.
Implementation Method 1
the body, the sound chamber and the face insert amplify the sound generated by the putter-type golf club head striking a golf ball
Data Source
AI summary
A putter-type golf club head with a sound chamber is disclosed herein. The club head comprises a body and a two-piece face insert disposed over the sound chamber. The sound chamber comprises a central sound sub-chamber and an outer sound sub-chamber, while the face insert comprises a first, metallic piece that includes a central recess, which is filled with a second, polymeric piece. The metallic piece is welded to the body, and the polymeric piece is adhered to the metallic piece. The body also includes at least one through-bore extending from the sound chamber through a back wall of the body. The body, the sound chamber, the face insert, and the through-bore amplify the sound generated by the putter-type golf club head striking a golf ball.