Golf club head with flexure
First Claim
Patent Images
1. A golf club head, comprising:
- a crown defining an upper surface of the golf club head;
a sole defining a lower surface of the golf club head, comprising a transmittal portion, a flexure and a rear portion;
a side wall extending between the crown and the sole;
a hosel extending from the crown and including a shaft bore; and
a face defining a ball-striking surface and intersecting the transmittal portion at a leading edge,wherein the flexure is spaced aftward of the ball-striking surface by the transmittal portion, and comprises a front wall, an apex and a rear wall, wherein the front wall extends into a cavity defined by the golf club head and the rear wall extends into the cavity and the front wall and the rear wall are coupled at the apex,wherein the flexure is spaced from the ball-striking surface by a distance that is between 20% and 50% of a CG-Z-fc distance between the geometric face center of the golf club head and the center of gravity of the golf club head along a horizontal Z-axis that extends from the front to the aft of the golf club head, andwherein a sum of a height and a width of the flexure is within 30% of a CG-Y-g distance between a ground plane and the center of gravity of the golf club head along a vertical Y-axis.
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Accused Products
Abstract
A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.
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Citations
20 Claims
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1. A golf club head, comprising:
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a crown defining an upper surface of the golf club head; a sole defining a lower surface of the golf club head, comprising a transmittal portion, a flexure and a rear portion; a side wall extending between the crown and the sole; a hosel extending from the crown and including a shaft bore; and a face defining a ball-striking surface and intersecting the transmittal portion at a leading edge, wherein the flexure is spaced aftward of the ball-striking surface by the transmittal portion, and comprises a front wall, an apex and a rear wall, wherein the front wall extends into a cavity defined by the golf club head and the rear wall extends into the cavity and the front wall and the rear wall are coupled at the apex, wherein the flexure is spaced from the ball-striking surface by a distance that is between 20% and 50% of a CG-Z-fc distance between the geometric face center of the golf club head and the center of gravity of the golf club head along a horizontal Z-axis that extends from the front to the aft of the golf club head, and wherein a sum of a height and a width of the flexure is within 30% of a CG-Y-g distance between a ground plane and the center of gravity of the golf club head along a vertical Y-axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A golf club head, comprising:
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a crown defining an upper surface of the golf club head; a sole defining a lower surface of the golf club head, comprising a transmittal portion, a flexure and a rear portion; a side wall extending between the crown and the sole; a hosel extending from the crown and including a shaft bore; and a face defining a ball-striking surface and intersecting the transmittal portion at a leading edge, wherein the flexure is spaced aftward of the ball-striking surface by the transmittal portion, and comprises a front wall, an apex and a rear wall, wherein the front wall extends into a cavity defined by the golf club head and the rear wall extends into the cavity and the front wall and the rear wall are coupled at the apex, wherein the flexure is spaced from the ball-striking surface by a distance that is between 20% and 50% of a CG-Z-fc distance between the geometric face center of the golf club head and the center of gravity of the golf club head along a horizontal Z-axis that extends from the front to the aft of the golf club head , and wherein the thickness of the apex is different from the greater of the thickness of the front wall and the thickness of the rear wall by less than 30%. - View Dependent Claims (19)
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20. A golf club head, comprising:
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a crown defining an upper surface of the golf club head; a sole defining a lower surface of the golf club head, comprising a transmittal portion, a flexure and a rear portion; a side wall extending between the crown and the sole; a hosel extending from the crown and including a shaft bore; and a face defining a ball-striking surface and intersecting the transmittal portion at a leading edge, wherein the flexure is spaced aftward of the ball-striking surface by the transmittal portion, and comprises a front wall, an apex and a rear wall, wherein the front wall extends into a cavity defined by the golf club head and the rear wall extends into the cavity and the front wall and the rear wall are coupled at the apex, wherein the flexure is spaced from the ball-striking surface by a distance that is between 20% and 50% of a CG-Z-fc distance between the geometric face center of the golf club head and the center of gravity of the golf club head along a horizontal Z-axis that extends from the front to the aft of the golf club head, and wherein a thickness of a portion of the sole rearward and within 30.0 mm of the flexure is greater than the minimum thickness of the transmittal portion, and the thickness of the sole rearward and immediately adjacent the rear wall of the flexure is less than the minimum thickness of the transmittal portion.
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Specification