Cavity Back Iron Insert Structure for Vibration Dampening
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Solution Overview
Problem
Current cavity back iron golf club inserts are limited in their vibrational dampening ability due to being rigid and only covering a portion of the rear surface, failing to extend into the perimeter regions, and are difficult to assemble.
Innovation Solution
A flexible insert that fills the perimeter undercut of the golf club head, featuring voids and interconnected walls to reduce mass and enhance assembly, with optional alignment features for secure placement, and can be made of multiple pieces for easier installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a rigid badge is used in the rear cavity, then it provides structural support and aesthetic appearance, but it has limited vibrational dampening ability and only covers a portion of the strike face
Solution Approach 1:
The patent replaces the rigid badge with a flexible insert that can conform to the cavity back surface and extend into perimeter regions. The flexible material allows the insert to dampen vibrations effectively while being press-fit into the cavity, resolving the contradiction between ease of assembly and vibrational dampening ability.
Solution Approach 2:
The insert is designed with a multi-component structure including an outer shell, inner core, and intermediate layer, allowing each component to serve specific functions. This segmentation enables the insert to provide both structural support and effective vibrational dampening across the entire strike face surface.
2Reliability
If the insert is made as a single solid piece, then it provides comprehensive coverage and dampening, but it is difficult to assemble into the cavity
Solution Approach 1:
The insert is divided into multiple components (outer shell, inner core, intermediate layer) that can be separately manufactured and then assembled together. This segmentation makes the insert easier to manufacture and assemble while maintaining comprehensive coverage and effective vibrational dampening when installed.
Solution Approach 2:
The insert incorporates flexible materials and a compliant structure that allows it to be compressed during assembly and then expand to fill the cavity space. This dynamic behavior enables easy press-fit assembly while ensuring comprehensive coverage for effective dampening.
3Reliability
If the insert extends into the perimeter regions, then it provides better vibrational dampening, but it increases the complexity of the insert design
Solution Approach 1:
The flexible outer shell is designed to conform to the cavity back surface and extend into perimeter regions. This flexible construction allows the insert to achieve comprehensive coverage and effective perimeter dampening without requiring complex rigid structural elements, thus managing design complexity.
Solution Approach 2:
The insert is designed as a multi-functional component that provides both structural support and vibrational dampening across the entire strike face surface, including perimeter regions. This universal design approach consolidates multiple functions into a single component, managing complexity while enhancing performance.
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 vibrational dampening, reduces peak impact frequencies for a softer sound, maintains performance characteristics like ball speed and spin, and simplifies assembly by allowing easy press-fitting into the undercut.
Implementation Method 1
the insert provides improved vibrational dampening, reduces peak impact frequencies for a softer sound
Data Source
AI summary
Described herein are embodiments of cavity back irons with inserts. In some embodiments, the insert has a plurality of voids. In some embodiments, the voids can have approximately the same size. In other embodiments, the voids can vary in size to create a variable density. The cavity back iron can include an undercut, a lip, or another rear structure. The insert can fill the back cavity and a majority of an undercut, lip, or maintaining feature. In some embodiments, the insert is made up of multiple pieces. In many embodiments, the insert can be press-fit into the cavity. Other embodiments of cavity back irons with inserts are described herein.