Blade Iron Golf Club Head Center of Gravity Shift
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Solution Overview
Problem
Muscle-back and blade iron golf clubs have limitations in feel and performance due to their center of gravity being located away from the face center, which affects shot accuracy and feedback, especially when not struck on the center of the face.
Innovation Solution
A blade-type iron golf club head design with a distinct upper blade portion and lower muscle portion, where the muscle portion is thicker and extends further towards the toe, shifting the center of gravity closer to the face center, and a smooth arcuate blade interface transitioning between the two portions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the center of gravity is located on the heel and sole side of the face center (traditional blade iron design), then the club provides better feel and feedback when not struck on the center of the face, but the shot accuracy and impact efficiency deteriorate
Solution Approach 1:
The patent changes the parameter of center of gravity location by redistributing mass within the club head. Specifically, it increases the thickness of the muscle portion at the toe end and adjusts the overall mass distribution to move the center of gravity closer to the face center, thereby improving impact efficiency while maintaining the blade iron configuration
2Manufacturing precision
If the muscle portion is made thicker and extends further towards the toe, then the center of gravity moves closer to the face center improving impact efficiency, but the structural complexity increases
Solution Approach 1:
The patent applies local quality by creating a non-uniform thickness distribution in the muscle portion. The muscle portion is thicker at the toe end and tapers toward the heel, with specific thickness ranges (8-16mm) defined at different locations. This localized variation in thickness achieves the desired center of gravity shift while maintaining a relatively simple overall structure suitable for blade irons
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 an upper blade portion and a lower muscle portion with the upper blade portion separated from the lower muscle portion by a blade interface. An average height of the lower muscle portion from the ball striking centerline to the toe-side boundary line may be approximately twice an average height of the lower muscle portion from the heel-side boundary line to the ball striking centerline. The mass distribution of the lower muscle portion moves the center of gravity of the club head closer to the face center location.