Metalwood type golf clubhead having an improved structural system for reduction of the cubic centimeter displacement and the elimination of adverse aerodynamic drag effect

Abstract

A metalwood type golf clubhead, including a clubhead body having a toe, heel, top crown surface, bottom sole surface, side surfaces, rear surface and ball-striking clubface, having an inwardly disposed lower surface located between the bottom sole surface and the top crown surface. The inwardly disposed lower structure provides improved weight distribution for better balance, additional strength and stability to clubhead and considerably decreases the overall cc displacement and overall weight / mass at the bottom of the clubhead without decreasing the size of the ball striking face and / or the upper top crown surface.

Description

RELATED APPLICATIONS [0001] The present application is a continuation-in-part of application Ser. No. 10 / 165,947 filed Jun. 11, 2002 titled Metalwood Type Golf Club Head Having Expanded Sections Extending the Ball Striking Clubface.BACKGROUND OF THE INVENTION [0002] The present invention relates to the golf clubheads shown and described in my prior U.S. Pat. Nos. 5,954,595, 5,989,134 and 6,530,847 which are incorporated herein by reference, and in particular, to an improved metalwood type golf clubhead having an improved structural system for reduction of cubic centimeter displacement and the elimination of adverse aerodynamic drag effect. [0003] In the aforementioned applications, metalwood type golf club heads are described having at least a reinforcing and stabilizing, hereinafter R / S member, including additional ball-striking surfaces, coincident with and parallel to the clubface and are located horizontally at the toe and heel sections of the clubface, enlarging it substantiall...

AI Technical Summary

Benefits of technology

[0008] The present invention relates to wood-type metalwood golf clubheads having a concave structural innovation system that substantially reduces the cubic-centimeter displacement of the clubhead. In addition, the concave structural system design also reduces the negative drag effects of conventional clubheads. The design of the structural system of the present Invention starts from a clubhead bottom that is not convex shaped like traditional shaped clubheads which bottoms extend outwardly producing bulkier more mass that increases the cubic-centimeter displacement of the clubhead.

[0009] To accomplish this, the system is formed with an elongated concave section below the top crown of the clubhead that eliminates excess bulging mass of convex bottom shapes of traditional shaped clubheads.

Problems solved by technology

Although these traditional shaped clubheads are substantially enlarged overall, with higher face heights and wider, bulkier convex shaped crowns and convex shaped sole bottoms, their traditional shaped clubfaces continue to have diminishing and lesser effective ball-contact hitting area, in a heel to toe direction, or top to bottom direction They are not structurally designed to expand the ball-striking area on the clubface proportionately to the overall enlarged clubheads for any possible improved performance, for most golfers.

However, for most golfers, the subtle changes to the clubfaces and the expected performance of the larger metalwood clubheads, have been disappointing.

For the recreational and high-handicap golfers, the restrictive ball-contact area on all traditional shaped clubfaces will always have problems for them.

The performance of most of these traditional shaped metalwood clubheads has not materially improved clubhead feel at ball contact, or significantly increased clubhead stability and control for anticipated improved ball-flight accuracy and additional significant distance.

Consequently, these bulkier, over-sized traditional shaped clubheads and clubfaces have not meaningfully improved or advanced the majority of golfers' performance potential; especially for the mid to high-handicap golfers that need productive improvements the most.

Images