Golf club head

Patent metadata

Field	Value
Publication number	US-2016287953-A1
Application number	US-201615177586-A
Country	US
Kind code	A1
Filing date	Jun 9, 2016
Priority date	Dec 11, 2008
Publication date	Oct 6, 2016
Grant date	—

Abstract

Golf club heads are described herein, and in one embodiment including a body with an exterior surface defining a first body volume of at least about 400 cm 3 . The body has a bottom portion, a top portion, a front portion, and a back portion. A face positioned at the front portion of the body and is configured to receive an impact. A top portion silhouette profile located along a perimeter of the top portion is further described. The top portion silhouette profile defines the outer bounds of the top portion in an X-direction and Y-direction. At least one indentation can be located on the bottom portion below the crown silhouette profile. The removal of the at least one indentation from the bottom portion can create a second body volume that is at least 12 cm 3 larger than the first body volume.

First claim

1 . A golf club head comprising:
a body including an exterior surface defining a first body volume of at least about 400 cm 3 , the body having a bottom portion, a top portion, a front portion, and a back portion; a sole located on the bottom portion of the golf club head; a face positioned at the front portion of the body, the face being configured to receive an impact; a top portion silhouette profile located along a perimeter of the top portion, the top portion silhouette profile defining the outer bounds of the top portion in an X-direction and Y-direction; and at least one indentation located on the bottom portion below the top portion silhouette profile, the at least one indentation being defined in part by an indentation wall that extends below the surface of the sole and into the body; wherein the removal of the at least one indentation from the bottom portion creates a second body volume that is at least 12 cm 3 larger than the first body volume; and wherein the golf club head has a head origin defined as a position on the face plane at a geometric center of the face, the head origin including an x-axis tangential to the face and generally parallel to the ground when the head is in an address position where a positive x-axis extends towards the heel portion, a y-axis extending perpendicular to the x-axis and generally parallel to the ground when the head is in the address position where a positive y-axis extends from the face and through the rearward portion of the body, and a z-axis extending perpendicular to the ground, to the x-axis and to the y-axis when the head is ideally positioned where a positive z-axis extends from the origin and generally upward, wherein the golf club head has a center of gravity with a x-axis coordinate between about −2 mm and about 7 mm, a y-axis coordinate between about 15 mm and about 50 mm, and a z-axis coordinate between about −7 mm and about 2 mm.

2 . The golf club head of claim 1 , wherein the golf club head has a center of gravity with a y-axis coordinate between about 30 mm and about 40 mm.

3 . The golf club head of claim 1 , wherein the golf club head has a moment of inertia about the CG z-axis, I CGz , between about 450 kg·mm 2 and about 650 kg·mm 2 .

4 . The golf club head of claim 1 , further comprising a weight port located on the sole near a back portion of the golf club head.

5 . The golf club head of claim 4 , wherein the weight port is a movable weight port and a movable weight may be inserted or removed to change characteristics of the CG location.

6 . The golf club head of claim 1 , wherein the first body volume is between about 440 cm 3 to about 470 cm 3 .

7 . The golf club head of claim 6 , wherein a heel-toe dimension is between about 119 mm and about 127 mm.

8 . The golf club head of claim 6 , wherein a top-bottom dimension is between about 63 mm and about 71 mm.

9 . The golf club head of claim 6 , wherein a front-rear dimension is between about 111 mm and about 127 mm.

10 . The golf club head of claim 1 , wherein the golf club head has a coefficient of restitution greater than about 0.810.

11 . The golf club head of claim 1 , wherein the golf club head has a first sole mode frequency greater than about 3000 Hz.

12 . The golf club head of claim 1 , wherein the removal of the at least one indentation from the bottom portion creates a second body volume that is between about 12 cm 3 and about 20 cm 3 larger than the first body volume.

13 . A golf club head comprising:
a body including an exterior surface defining a first body volume of at least about 400 cm 3 , the body having a bottom portion, a top portion, a front portion, and a back portion; a face positioned at the front portion of the body, the face being configured to receive an impact; a top portion silhouette profile located along a perimeter of the top portion, the top portion silhouette profile defining the outer bounds of the top portion in an X-direction and Y-direction; and a first sole and a second sole located on the bottom portion of the golf club head; wherein removal of the second sole creates a second body volume that is larger than the first body volume; and wherein the golf club head has a head origin defined as a position on the face plane at a geometric center of the face, the head origin including an x-axis tangential to the face and generally parallel to the ground when the head is in an address position where a positive x-axis extends towards the heel portion, a y-axis extending perpendicular to the x-axis and generally parallel to the ground when the head is in the address position where a positive y-axis extends from the face and through the rearward portion of the body, and a z-axis extending perpendicular to the ground, to the x-axis and to the y-axis when the head is ideally positioned where a positive z-axis extends from the origin and generally upward, wherein the golf club head has a center of gravity with an x-axis coordinate between about −2 mm and about 7 mm, a y-axis coordinate between about 30 mm and about 40 mm, and a z-axis coordinate between about −7 mm and about 2 mm.

14 . The golf club head of claim 13 , wherein removal of the second sole creates a second body volume that is at least 12 cm 3 larger than the first body volume.

15 . The golf club head of claim 13 , wherein removal of the second sole increases the volume of the golf club head by about 9 cm 3 .

16 . The golf club head of claim 13 , wherein removal of the second sole increases the volume of the golf club head by about 12 cm 3 to about 15 cm 3 .

17 . The golf club head of claim 13 , wherein the golf club head has a moment of inertia about the CG z-axis, I CGz , between about 450 kg·mm 2 and about 650 kg·mm 2 .

18 . The golf club head of claim 13 , further comprising a weight port located on the sole near a back portion of the golf club head.

19 . The golf club head of claim 13 , wherein the first body volume is about 440 cm 3 to about 470 cm 3 .

20 . The golf club head of claim 19 , wherein a heel-toe dimension is between about 119 mm and about 127 mm.

Assignees

• Taylor Made Golf Co

Inventors

• Beach Todd P
• Sargent Nathan T
• Willett Kraig Alan

Classifications

• A63B2053/0491

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

• A63B60/00

  Details or accessories of golf clubs, bats, rackets or the like · CPC title

• A63B53/06

  adjustable · CPC title

• A63B60/02

  Ballast means for adjusting the centre of mass (A63B60/24, A63B60/54 take precedence) · CPC title

• A63B53/0466 Primary

  wood-type · CPC title