Metal wood club

Patent metadata

Field	Value
Publication number	US-9737770-B2
Application number	US-201514944465-A
Country	US
Kind code	B2
Filing date	Nov 18, 2015
Priority date	Dec 23, 2005
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

A golf club head is provided with a body that has an address position with a zero degree bounce portion on the sole and a center sole position with a multi-relief surface of the sole having a negative bounce portion. The negative bounce portion may comprise a negative 0.5 to a negative 4.0 degree surface. In one embodiment, the multi-relief surface may comprise the negative bounce portion and a cutaway portion extending to the back of the sole, which may have a depth of about 0.05 to 0.5 inch from a regular sole surface. In another embodiment, the golf club head includes a weight system to adjust the center of gravity. In one embodiment, the weight system is a tube having a weight at one end that may be inserted into the golf club head to move the center of gravity at least forward and backward within 6 mm and up and down within 6 mm. Preferably, the tube is angled downward toward the face by at least 3 degrees.

First claim

We claim:

1. A golf club head, the club head comprising:
a body having a face, a sole, a crown and a skirt joining the face, sole and crown, the body having a heel end and a toe end,
wherein the sole of the golf club head further comprises a multi-relief surface, wherein the multi-relief surface further comprises;
a leading edge at a frontal portion of the multi-relief surface, adjacent to the face;
a negative bounce portion, located rearward of the leading edge, aligned with a hosel portion of said golf club in the toe to heel direction, with the entire negative bounce portion having a negative bounce angle head; and
a cutaway portion at least partially adjacent to the rear of the negative bounce portion;
wherein the cutaway portion has a different bounce angle than the negative bounce portion and wherein the entire cutaway portion forms a depression on the sole of the golf club head, and wherein at least a portion of the cutaway portion extends from the negative bounce portion to a trailing edge of the golf club head.

2. The golf club head of claim 1 , wherein a boundary between the negative bounce portion and the cutaway portion forms a step in depth.

3. The golf club head of claim 2 , wherein at least a portion of the negative bounce portion has the negative bounce angle of between about negative 0.5 degrees to negative 4.0 degrees.

4. The golf club head of claim 1 , wherein a depth of the cutaway portion is not constant.

5. The golf club head of claim 1 , wherein the negative bounce portion has a variable bounce angle.

6. A golf club head, the club head comprising:
a body having a face, a sole, a crown and a skirt joining the face, sole and crown, the body having a heel end and a toe end,
wherein the body has an address position further comprises;
a center sole portion located rearward of the face,
wherein the center sole portion further comprises a negative bounce portion aligned with a hosel portion of said golf club in the toe to heel direction,
a cutaway portion at least partially adjacent to the rear of the center sole portion of the sole, and
a weighting system further comprising a tube and a weight located within the cutaway portion,
wherein at least a portion of the cutaway portion extends from the center sole portion to a trailing edge of the golf club head.

7. The golf club head of claim 6 , wherein the weighting system is orientated along a plane defined by a y-axis and a z-axis in a forward and aft direction.

8. The golf club head of claim 7 , wherein the weighting system is angled by an angle δ of at least 1 degree from the plane W formed by the z-axis and a x-axis.

9. The golf club head of claim 8 , wherein the weighting system is angled by an angle δ of at least 3 degree from the plane W formed by the z-axis and a x-axis.

10. The golf club head of claim 9 , wherein the weighting system is angled by an angle δ of at between 3 to 7 degrees from the plane W formed by the z-axis and a x-axis.

11. The golf club head of claim 7 , wherein the weighting system could be flipped such that the tube is able to be inserted into the club head with the weight in two or more directions.

12. The golf club head of claim 11 , wherein a center of gravity of the golf club head is able to be moved along the z-axis and the y-axis as an orientation of the weighting system is reversed.

Assignees

• Acushnet Co

Inventors

• Bennett Thomas Orrin
• Burnett Michael Scott
• Callinan Daniel S
• Harvell Christopher D
• Meyer Jeffrey W
• Murphy Stephen S

Classifications

• A63B60/04

  Movable ballast means {(A63B15/005 takes precedence)} · CPC title

• A63B53/06 Primary

  adjustable · CPC title

• A63B2225/01

  Special aerodynamic features, e.g. airfoil shapes, wings or air passages · CPC title

• A63B53/0466 Primary

  wood-type · CPC title

• A63B2053/0491

  with added weights, e.g. changeable, replaceable · CPC title