Golf club head with grooves

Abstract

The present invention discloses a golf club head having a plurality of grooves. On the face of the golf club head is a first and second plurality of grooves. The second set of plurality of grooves is smaller in width and depth than those of the first set of plurality of grooves.

Description

CROSS REFERENCES TO RELATED APPLICATIONS[0001]The present application claims priority to U.S. Provisional Patent Application No. 61 / 260,666, filed on Nov. 12, 2009, which is hereby incorporated by reference in its entirety.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not ApplicableBACKGROUND OF THE INVENTION[0003]1. Field of the Invention[0004]The present invention relates to a golf club head. More specifically, the present invention relates to a golf club head having a plurality of grooves.[0005]2. Description of the Related Art[0006]The prior art discloses various methods to manufacture golf club heads, especially iron-type golf club heads. For example, Rogers, U.S. Pat. No. 4,027,885 for Golf Iron Manufacture, discloses scoring grooves into a face for the club head.[0007]Taylor, U.S. Pat. No. 4,077,632 for a Lined Face For A Golf Club discloses grooves in compliance with the Rules of Golf at that time.[0008]Ribaudo, U.S. Pat. No. 4,529,203, for Golf Club d...

AI Technical Summary

Benefits of technology

[0024]The present invention provides a novel solution to imparting backspin by using high lofted golf clubs. The present invention increases the number of sharp edges that contact a golf ball during impact in order to increase the backspin. The sharp edges slice through debris and “grab” a soft cover of a golf ball better than grooves that have fewer edges. This leads to higher effective coefficients of friction for the golf club which in turn leads to more backspin.

[0025]For high lofted clubs, the sliding between the golf ball and the face of the golf club occurs during the majority of time of the impact between the golf ball and the face. Due to this sliding time period of the impact time, the backspin of a golf ball is increased by increasing the effective coefficient of friction between the two surfaces, the golf ball and the face of the golf club.

[0026]The effective coefficient of friction between the two surfaces, the golf ball and the face of the golf club, is primarily a function of the number of edges that the golf ball contacts and the sharpness of the edges. The impact also results in a finite area of contact between the golf ball and the face of the golf club. The area of contact is generally circular in shape. Due to the finite area of contact, there is a design of grooves that will maximize the length of edges that contact the ball during impact. The present invention maximizes the number of grooves in contact with a golf ball during an impact.

Problems solved by technology

This leads to higher effective coefficients of friction for the golf club which in turn leads to more backspin.

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