US 12,121,781 B2
Golf club
Todd P. Beach, Encinitas, CA (US); John Francis Lorentzen, El Cajon, CA (US); Bing-Ling Chao, San Diego, CA (US); and Mark Vincent Greaney, Vista, CA (US)
Assigned to Taylor Made Golf Company, Inc., Carlsbad, CA (US)
Filed by Taylor Made Golf Company, Inc., Carlsbad, CA (US)
Filed on May 11, 2023, as Appl. No. 18/196,260.
Application 18/196,260 is a continuation of application No. 17/825,820, filed on May 26, 2022, granted, now 11,944,878.
Application 17/825,820 is a continuation of application No. 17/064,528, filed on Oct. 6, 2020, granted, now 11,369,846, issued on Jun. 28, 2022.
Application 17/064,528 is a continuation of application No. 16/410,249, filed on May 13, 2019, granted, now 10,828,540, issued on Nov. 10, 2020.
Application 16/410,249 is a continuation of application No. 16/102,293, filed on Aug. 13, 2018, granted, now 10,569,145, issued on Feb. 25, 2020.
Application 16/102,293 is a continuation of application No. 15/838,682, filed on Dec. 12, 2017, granted, now 10,226,671, issued on Mar. 12, 2019.
Application 15/838,682 is a continuation of application No. 14/144,105, filed on Dec. 30, 2013, granted, now 9,861,864, issued on Jan. 9, 2018.
Claims priority of provisional application 61/909,964, filed on Nov. 27, 2013.
Prior Publication US 2023/0356041 A1, Nov. 9, 2023
Int. Cl. A63B 53/04 (2015.01)
CPC A63B 53/0466 (2013.01) [A63B 53/0408 (2020.08); A63B 53/0412 (2020.08); A63B 53/0433 (2020.08); A63B 2053/0491 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A golf club head comprising:
a club head body having a crown, a sole, a heel, a toe, a leading edge, a trailing edge, and a volume of 430-500 cc, wherein a length from the leading edge to the trailing edge is 110.8-140 mm;
a face portion at a front end of the club head body, the face portion including a geometric center defining an origin of a coordinate system when the golf club head is in a normal address position, wherein the coordinate system includes:
an x-axis being tangent to the face portion at the origin and parallel to a ground plane;
a y-axis intersecting the origin being parallel to the ground plane and orthogonal to the x-axis; and
a z-axis intersecting the origin being orthogonal to both the x-axis and the y-axis;
a heel opening located on a heel end of the club head body, the heel opening configured to receive a shaft fastening member;
a sleeve that is secured by the shaft fastening member in a locked position to secure an adjustable head-shaft connection assembly to the club head body; and
at least one external mass element that is attachable to the club head body and comprising:
a first weight having a first mass, with a rearward portion of the first weight located at least 104.7 mm behind the leading edge as measured along the y-axis; and
a second weight having a second mass,
wherein the first mass is at least double the second mass;
wherein the golf club head defines a center of gravity (CG), the CG being a distance CGy from the origin as measured along the y-axis, a distance CGz from the origin as measured along the z-axis, and a distance Δz from a ground plane, the ground plane being defined as a plane in contact with the sole of the golf club head in an ideal address position;
wherein a CG effectiveness product (CGeff) for the golf club head is defined as CGeff=CGy×Δz and the CGeff is at least 806 mm2, the CGy is 31.6-52.8 mm, and the Δz is 18.7-29.7 mm; and
an imaginary rearward mass box located at a rearward portion of the club head has a constant rectangular cross-section with a first side, a second side, a third side, and a fourth side, wherein:
the first side is adjacent and perpendicular to the second side and connects to the second side at a first vertex, the third side is adjacent and perpendicular to the second side and connects to the second side at a second vertex, the third side is adjacent and perpendicular to the fourth side and connects to the fourth side at a third vertex, and the first side is adjacent and perpendicular to the fourth side and connects to the fourth side at a fourth vertex;
the fourth side of the constant rectangular cross-section is parallel to the z-axis and extends from the ground plane to a point tangent to the trailing edge, the first side of the constant rectangular cross-section is coincident with the ground plane and extends from the fourth side forward in a negative y-direction, and the second side of the constant rectangular cross-section extends upward in a positive z-direction;
the constant rectangular cross-section having a height of 30 mm as measured parallel to the z-axis and between the first side and the third side, and a width of 35 mm as measured parallel to the y-axis and between the second side and the fourth side;
the imaginary rearward mass box extends parallel to the x-axis from a heel-ward most portion of the golf club head to a toe-ward most portion of the golf club head encompassing all club head mass within the imaginary rearward mass box;
the imaginary rearward mass box includes an imaginary rearward mass box geometric center point which is defined in a y-z plane passing through the origin as a point located one-half the distance from the first side to the third side of the imaginary rearward mass box and one-half the distance from the second side to the fourth side of the imaginary rearward mass box;
a rearward mass box vector distance (V2) is defined as a distance as measured in the y-z plane passing through the origin from the imaginary rearward mass box geometric center point to a y-z plane CG projection that is a projection, parallel to the x-axis, of the CG onto the y-z plane passing through the origin, and the rearward mass box vector distance (V2) is 51.0-65.5 mm;
the imaginary rearward mass box encompasses 30.1-74.0 grams; and
the first weight is positioned entirely within the imaginary rearward mass box, and the second weight is located forward of the CG; and
the golf club head has a moment of inertia (Ixx) about a CG x-axis, the CG x-axis being parallel to the x-axis and passing through the CG of the golf club head, a moment of inertia (Iyy) about a CG y-axis, the CG y-axis being parallel to the y-axis and passing through the CG of the golf club head, and a moment of inertia (Izz) about a CG z-axis, the CG z-axis being parallel to the z-axis and passing through the CG of the golf club head, and wherein Ixx is at least 283 Kg·mm2, and Izz is at least 380 Kg·mm2.