Golf Clubs With Golf Club Heads Having Grooves Formed With Textured Surfaces
AssigneeNIKE, Inc.
InventorsDonald S. Rahrig, Robert Boyd, William J. Ritchie
Life of this patent
Estimating the term…
Abstract
A golf club with a golf club head having a plurality of grooves formed using electrical discharge machining is presented. The grooves may be formed in a ball striking surface of the golf club head and may include portions having a texture. In some examples, the roughness of the texture may vary as the groove extends from the ball striking surface along a sidewall of the groove. For instance, texture formed along an edge radius of the groove extending between the ball striking surface and the sidewall may be rougher than texture extending lower along the sidewall. In some examples, portions of the sidewall and/or bottom of the groove may be void of texture.
Claims40
A golf club head, comprising:
- a golf club head body having a front face including a ball striking surface;
- and
- a plurality of grooves formed in the ball striking surface, the plurality of grooves being formed using electrical discharge machining (EDM), at least one groove of the plurality of grooves having a first sidewall and a second sidewall extending downward from the front face of the golf club head body to a bottom of the groove, the at least one groove further including a first edge radius extending between the first sidewall and the front face and a second edge radius extending between the second sidewall and the front face, and the first edge radius and the second edge radius including a first texture.
A golf club head, comprising:
- a golf club head body having a ball striking surface;
- and
- a plurality of grooves formed in the ball striking surface, at least one groove of the plurality of grooves having a first end arranged proximate the toe and a second end arranged proximate the heel, and the at least one groove of the plurality of grooves having a constant vertical depth along a length of the groove extending from the first end to the second end.
A golf club, comprising:
- a golf club shaft;
- a golf club head connected to one end of the shaft and having a golf club head body including a toe, a heel, a crown, a sole, a rear and a front face, the front face including a ball striking surface;
- and
- a plurality of grooves formed in the ball striking surface, at least one groove of the plurality of grooves having a first sidewall, a second sidewall, a first end wall, a second end wall, and a bottom, wherein a bottom of the first end wall and a bottom of the second end wall meet the bottom of the groove at a substantially right angle.
A method of forming a golf club, comprising:
- forming a golf club head having a golf club head body including a toe, a heel, a crown, a sole, a rear and a front face, the front face including a ball striking surface;
- forming a plurality of grooves in the ball striking surface of the golf club head body using EDM;
- and
- connecting the golf club head to a shaft.
A method of forming a golf club, comprising:
- forming a golf club head having a golf club head body including a toe, a heel, a crown, a sole, a rear and a front face, the front face including a ball striking surface;
- forming a plurality of grooves in the ball striking surface of the golf club head body using EDM, wherein forming the plurality of grooves using EDM includes:
- forming a first texture region using EDM, the first texture region located along an edge radius extending between the front face and a first sidewall of the groove, the first texture region having a first roughness;
- forming a second texture region using EDM, the second texture region being adjacent the first texture region and extending downward from the first texture region along the first sidewall of the groove, the second texture region having a second roughness different from the first roughness;
- and
- connecting the golf club head to a shaft.
An iron-type golf club head, comprising:
- an iron-type golf club head body having a ball striking surface;
- and
- a plurality of grooves formed in the ball striking surface, wherein at least a first groove of the plurality of grooves includes a first sidewall and a second sidewall extending inward from the ball striking surface to a bottom of the groove, the first groove further including a first edge radius extending between the first sidewall and the ball striking surface and a second edge radius extending between the second sidewall and the ball striking surface, and wherein the first edge radius includes a first texture.
Dependencies are inferred from the claim text.