Dual-Density Insert in Blade Iron Golf Club Heads
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Solution Overview
Problem
Muscle-back or blade iron golf clubs have limitations such as harsher feel and greater distance loss for off-center shots, making them more difficult to hit but providing less control for amateur golfers.
Innovation Solution
A blade-type iron golf club head with a dual-density insert located behind the ball striking surface, featuring a higher density region near the heel and a lower density region near the toe, which adjusts the center of gravity to be closer to the face center.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If muscle-back or blade iron configuration is used, then better feel and control are provided for skilled golfers, but harsher sensation and greater distance loss occur for off-center shots
Solution Approach 1:
The patent applies local quality by creating a dual-density insert with different material properties in specific regions. The higher density material is positioned in the lower portion of the insert while lower density material is in the upper portion, allowing localized mass adjustment to optimize both feel and performance consistency without compromising either aspect.
Solution Approach 2:
The patent uses composite materials by combining two different density materials within the insert structure. This composite approach allows the insert to provide both the feel characteristics of a blade iron and the performance consistency of a cavity back iron by strategically positioning materials of different densities to balance mass distribution.
2Adaptability or versatility
If center of gravity is located away from face center in conventional blade irons, then workability and shot shaping ability are improved, but distance loss and harsher sensation occur on off-center shots
Solution Approach 1:
The patent applies parameter changes by modifying the mass distribution parameters through the dual-density insert configuration. By adjusting the density and position of materials within the insert, the center of gravity location is optimized to reduce distance loss while maintaining workability, representing a change in the physical parameters of mass distribution.
Data Source
AI summary
In general, aspects of this invention relate to blade-type iron golf clubs or golf club heads. The blade-type golf club head may comprise a body forged of a metal material. The body may include a hosel, a top surface, a sole, a heel, a toe, a ball striking surface, and a rear surface opposite the ball striking surface. The rear surface may have recess in which a dual-density insert is affixed. The dual-density insert may have a first portion or first insert with a density greater than a second portion or second insert with a lesser density located closer to the toe than the first portion or first insert located closer to the heel. The mass distribution of the dual-density insert moves the center of gravity of the club head closer or substantially coincident to the face center location.