CN105163819B - Glof club head and correlation technique with optimization characteristics - Google Patents

Abstract

This paper presents the embodiment of the glof club head with optimization characteristics.There is disclosed herein other examples and correlation technique.

Description

Golf club head with optimized properties and related methods

Cross References to Related Applications

This application is an international patent application claiming the following priority:

U.S. Patent Application No. 13/804,859 filed March 14, 2013 with the U.S. Patent and Trademark Office;

U.S. Patent Application No. 13/804,917, filed March 14, 2013, in the U.S. Patent and Trademark Office; and

U.S. Patent Application Serial No. 13/826,111 filed March 14, 2013 in the U.S. Patent and Trademark Office.

The disclosures of the above applications are incorporated herein by reference.

technical field

The present disclosure relates generally to sporting equipment, and more particularly to golf club heads having optimized characteristics and related methods.

Background technique

Golf club heads often include various features that may be designed or configured to enhance one or more performance characteristics of the golf club head. However, there is often an inherent interplay between these different features, such that adjusting or configuring one feature may inherently change the other, often to a detrimental effect. For example, enlarging the striking face of a golf club to provide a larger hitting area may adversely change the location of the golf club's center of gravity, and if the features are not configured or designed in a balanced manner to account for the interaction of the different features impact, undesired performance results may ensue.

With the above in mind, further development of golf club features that balance each other will improve golf club performance.

Description of drawings

The present disclosure may be better understood by reading the following detailed description of examples of implementations, taken in conjunction with the accompanying drawings.

FIG. 1 shows a front view of a golf club head according to the present disclosure.

FIG. 2 shows a side cross-sectional view of the golf club head along line II-II of FIG. 1 .

3 illustrates a bottom view of the golf club head of FIGS. 1-2.

4 illustrates a flowchart of a method that may be used to provide, form, and/or manufacture a golf club head according to the present disclosure.

For simplicity and clarity of illustration, the drawings illustrate the general manner of construction, and descriptions and details of well-known features and techniques may be omitted to avoid unnecessarily obscuring the disclosure. Additionally, elements in the figures have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help to improve understanding of the embodiments of the present disclosure. In different drawings, the same reference numerals refer to the same elements.

Where the terms "first", "second", "third", "fourth", etc. may be present in the description and claims, they are used to distinguish between similar elements and not necessarily to describe a specific sequential order or time sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, device, or device that includes a list of elements is not necessarily limited to those elements, but rather can include other elements that are inherent in the process, method, system, article, apparatus, or device or not explicitly listed.

The terms "left", "right", "front", "rear", "top", "bottom", "on", "under" etc. that may exist in the specification and claims are used for descriptive purposes and not necessarily to describe permanent relative positions. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that embodiments of the devices, methods and/or articles of manufacture described herein, for example, can be implemented in a manner other than those illustrated or otherwise described herein. Operate with an orientation other than that of the .

The terms "couple", "coupled", "couples", "coupling" etc. are to be construed broadly and refer to the connection of two or more element. Coupling (whether mechanical or otherwise) may be for any length of time, such as permanently or semi-permanently or only momentarily.

The absence of the words "removably", "removable" etc. in the vicinity of the word "coupled" etc. does not imply that the coupling etc. in question is removable or non-removable.

As defined herein, two or more elements are "unitary" if they consist of the same piece of material. As defined herein, two or more elements are "non-unitary" if each of the two or more elements is composed of a different piece of material.

detailed description

In one example, a golf club head may include a club head body including a club head interior and a hosel structure. The interior of the club head may be defined by the front of the club head, the rear of the club head, the heel of the club head, the toe of the club head, the top of the club head, and the sole of the club head. The hosel structure may have a bore for receiving a golf club shaft, wherein the bore may have a hosel shaft. The golf club head may also include a center of gravity of the club head, a horizontal axis of the club head, a hosel moment of inertia about the hosel axis, and a horizontal moment of inertia about the club head horizontal axis, wherein when the golf club head is above ground level at address position, the horizontal axis of the clubhead extends from the heel of the clubhead to the toe of the clubhead through the center of gravity of the clubhead and is parallel to the ground plane. The horizontal moment of inertia may be greater than or equal to 39% of the hosel moment of inertia.

In one example, a golf club head may include a club head body including a club head interior and a hosel structure. The interior of the club head may be defined by the front of the club head, the rear of the club head, the heel of the club head, the toe of the club head, the top of the club head, and the sole of the club head. The hosel structure may have a bore for receiving a golf club shaft, wherein the bore may have a hosel shaft. The golf club head may also include a center of gravity of the club head, a vertical axis of the club head, a moment of inertia of the hosel about the axis of the hosel, and a vertical moment of inertia about the vertical axis of the club head, wherein when the golf club head is above ground level at address The vertical axis of the club head extends through the center of gravity of the club head from the top of the club head to the bottom of the club head and is perpendicular to the ground plane. The vertical moment of inertia may be greater than or equal to 59% of the hosel moment of inertia.

In one embodiment, a method of providing a golf club head includes providing a club head body having a club head interior and hosel structure. The interior of the club head may be defined by the front of the club head, the rear of the club head, the heel of the club head, the toe of the club head, the top of the club head, and the sole of the club head. The hosel structure may have a bore for receiving a golf club shaft, wherein the bore may have a hosel shaft. The method may also include coupling the golf club shaft to the hosel structure. The horizontal axis of the club head may extend through the center of gravity of the golf club head from the heel of the club head to the toe of the club head and be parallel to the ground plane when the golf club head is at address on the ground plane. When the golf club head is at address on the ground plane, the club head vertical axis may extend from the top of the club head to the bottom of the club head, through the center of gravity of the club head, and perpendicular to the ground plane. Additionally, providing the club head body may include at least one of: (a) establishing a horizontal moment of inertia about the horizontal axis of the club head, wherein the horizontal moment of inertia is greater than or equal to 39% of the hosel moment of inertia about the hosel axis; or ( b) Establish a vertical moment of inertia about the vertical axis of the club head, wherein the vertical moment of inertia is greater than or equal to 59% of the hosel moment of inertia about the hosel axis.

In one example, a golf club head may include a club head body including a club head front, a club head rear, a club head heel, a club head toe, a club head sole, a club head crown, and a hosel structure , the hosel structure has a hole for receiving a golf club shaft, wherein the hole may have a hosel shaft. The golf club head may also include a striking face at the front of the club head, a club head volume, a center of gravity of the club head, and optimization features, wherein the striking face includes the center point of the striking face and the club head volume is measured in cc and includes A club head volume with a value greater than 420. When the golf club head is at address on the ground plane, the vertical axis of the club head extends through the center of gravity of the club head and is normal to the ground plane, and the horizontal axis of the club head extends through the center of gravity of the club head and is normal to the vertical axis of the club head . The loft of the golf club head may be tangent to the center point of the striking face. The front plane of the golf club head may extend through the center point of the striking face and be parallel to the hosel axis. The club head depth plane may extend through the center point of the striking face parallel to the horizontal axis of the club head and perpendicular to the loft face. The CG height axis may extend through the club head center of gravity and may perpendicularly intersect the club head depth plane at a first intersection point. The head CG height of the head center of gravity may be measured along the CG height axis between the head center of gravity and the first intersection point. The head CG depth of the center of gravity of the head may be measured parallel to the ground plane and normal to the front plane between (a) the second intersection point and (b) the third intersection point, wherein (a) the second intersection point is at the front The intersection between the plane and the ground plane, (b) the third intersection is located at the intersection between the vertical axis of the club head and the ground plane. The optimal characteristic may be defined by (b) the ratio between (a) the club head volume value plus the club head CG depth divided by the absolute value of the club head CG height. The optimized characteristic may be greater than or equal to 425.

In one example, a golf club head may include a club head body including a club head front, a club head rear, a club head heel, a club head toe, a club head sole, a club head crown, and a hosel structure , the hosel structure has a hole for receiving a golf club shaft, wherein the hole may have a hosel shaft. The golf club head may also include a striking face located at the front of the club head and including a center point of the striking face, and a center of gravity of the club head. When the golf club head is at address on the ground plane, the vertical axis of the club head extends through the center of gravity of the club head and is normal to the ground plane, and the horizontal axis of the club head extends through the center of gravity of the club head and is normal to the vertical axis of the club head . The loft of the golf club head may be tangent to the center point of the striking face. The front plane of the golf club head may extend through the center point of the striking face and parallel to the hosel axis. The club head depth plane may extend through the center point of the striking face parallel to the horizontal axis of the club head and perpendicular to the loft face. The CG height axis may extend through the club head center of gravity and may perpendicularly intersect the club head depth plane at a first intersection point. The head CG height of the head center of gravity may be measured along the CG height axis between the head center of gravity and the first intersection point. The head CG depth of the center of gravity of the head may be measured parallel to the ground plane and normal to the front plane between (a) the second intersection point and (b) the third intersection point, wherein (a) the second intersection point is at the front The intersection between the plane and the ground plane, (b) the third intersection is located at the intersection between the vertical axis of the club head and the ground plane. The absolute value of the head CG height may be less than or equal to 2.54 mm. The head CG depth may be greater than or equal to 40.64 mm.

In one embodiment, a method for providing a golf club head may include providing a club head body, wherein the club head body includes a club head front, a club head rear, a club head heel, a club head toe, a club head A sole, a club head crown, and a hosel structure having a bore for receiving a golf club shaft, the bore having a hosel shaft. The method may also include coupling the striking face at the front of the club head and establishing optimized characteristics of the golf club head. The striking surface includes the striking surface center point. The head volume of the golf club head may be measured in cc and may include head volume values greater than 420. The vertical axis of the club head may extend through the center of gravity of the club head and may be normal to the ground plane when the golf club head is at address on the ground plane. The horizontal axis of the club head may extend through the center of gravity of the club head and may be orthogonal to the vertical axis of the club head. The loft of the golf club head may be tangent to the center point of the striking face. The front plane of the golf club head may extend through the center point of the striking face and parallel to the hosel axis. The club head depth plane may extend through the center point of the striking face parallel to the horizontal axis of the club head and perpendicular to the loft face. The CG height axis may extend through the club head center of gravity and may perpendicularly intersect the club head depth plane at a first intersection point. The head CG height of the head center of gravity may be measured along the CG height axis between the head center of gravity and the first intersection point. The CG depth of the club head at the center of gravity of the club head may be measured parallel to the ground plane and normal to the front plane between (a) the second intersection point and (b) the third intersection point, wherein (a) the second intersection point is at the front (b) the third point of intersection is located at the intersection between the vertical axis of the club head and the ground plane. The optimized characteristic may be established by (b) a ratio between (a) the club head volume value plus the club head CG depth divided by the absolute value of the club head CG height, wherein the optimized characteristic may be greater than or equal to 425.

In one example, a golf club head may include a club head body, a face portion, and a club head center of gravity, and at least one of a first performance characteristic or a second performance characteristic. The club head body may include a club head front, a club head rear, a club head heel, a club head toe, a club head sole, a club head crown, and a hosel structure having an aperture for receiving a golf club shaft , wherein the bore may have a hosel shaft. The face portion may be located at the front of the club head and may include a center point of the striking face, an edge of the striking face, and a face height bounded by the edge of the striking face. When the golf club head is at address on the ground plane, the vertical axis of the club head extends through the center of gravity of the club head and is normal to the ground plane, and the horizontal axis of the club head extends through the center of gravity of the club head and is normal to the vertical axis of the club head. The loft of the golf club head may be tangent to the center point of the striking face. The front of the golf club head may extend through the center point of the striking face and parallel to the hosel axis. The club head depth plane may extend through the center point of the striking face parallel to the horizontal axis of the club head and perpendicular to the loft face. The CG height axis may extend through the club head center of gravity and may intersect the club head depth plane at a first intersection point. The head CG height of the head center of gravity may be measured along the CG height axis between the head center of gravity and the first intersection point. The CG depth of the club head at the center of gravity of the club head may be measured parallel to the ground plane and normal to the front plane between (a) the second intersection point and (b) the third intersection point, wherein (a) the second intersection point is at the front (b) the third point of intersection is located at the intersection between the vertical axis of the club head and the ground plane. The face height measured parallel to the lobe face may be from about 33 mm to about 71 mm. The first performance characteristic may include a head CG height of less than or equal to about 5.08 mm. The second performance characteristic may include a CG performance ratio of less than or equal to 0.56, eg, a CG performance ratio defined by (a) 76.2 mm minus face height divided by (b) club head CG depth.

In one example, a golf club head may include a club head body, a face portion, and a club head center of gravity. The club head body may include a club head front, a club head rear, a club head heel, a club head toe, a club head sole, a club head crown, and a hosel structure having an aperture for receiving a golf club shaft , the bore has a hosel shaft. The face portion may be coupled to the front of the club head and may include a strike face having a strike face center point, a strike face edge, and a face height. When the golf club head is at address on the ground plane, the vertical axis of the club head extends through the center of gravity of the club head and is normal to the ground plane, and the horizontal axis of the club head extends through the center of gravity of the club head and is normal to the vertical axis of the club head. The loft of the golf club head may be tangent to the center point of the striking face. The front of the golf club head may extend through the center point of the striking face and parallel to the hosel axis. The club head depth plane may extend through the center point of the striking face parallel to the horizontal axis of the club head and perpendicular to the loft face. The CG height axis may extend through the club head center of gravity and may intersect the club head depth plane at a first intersection point. The head CG height of the head center of gravity may be measured along the CG height axis between the head center of gravity and the first intersection point. The CG depth of the club head at the center of gravity of the club head may be measured parallel to the ground plane and normal to the front plane between (a) the second intersection point and (b) the third intersection point, wherein (a) the second intersection point is at the front (b) the third point of intersection is located at the intersection between the vertical axis of the club head and the ground plane. The face height, as defined by the striking face edge and measured parallel to the high striking face, may be from about 33 mm to about 71 mm. The CG performance ratio between (a) 76.2 mm minus face height and (b) head CG depth is less than or equal to 0.56. The head body may include a driver-type body. The club head volume of the golf club head may be from about 420 cc to about 470 cc. The golf club head may have a head weight of about 185 grams to about 225 grams. The head CG height may be about 0 mm to about 3.18 mm. The head CG depth may be about 25mm to about 102mm. The club head body may include a weight structure disposed toward the sole and rear of the club head body.

In one embodiment, a method for providing a golf club head may include providing a club head body, wherein the club head body has a club head front, a club head rear, a club head heel, a club head toe, a club head A sole, a club head crown, and a hosel structure having a bore for receiving a golf club shaft, the bore having a hosel shaft. The method may also include coupling a face portion to the front of the club head, the face portion including a striking face having a center point of the striking face, an edge of the striking face, and a face height bounded by the edge of the striking face. The method also includes establishing at least one of the first performance characteristic of the golf club head or the second performance characteristic of the golf club head. When the golf club head is at address on the ground plane, the vertical axis of the club head extends through the center of gravity of the golf club head and is normal to the ground plane, and the horizontal axis of the club head extends through the center of gravity of the club head and is normal to the ground plane. The vertical axis is orthogonal. The loft of the golf club head may be tangent to the center point of the striking face. The front of the golf club head may extend through the center point of the striking face and parallel to the hosel axis. The club head depth plane may extend through the center point of the striking face parallel to the horizontal axis of the club head and perpendicular to the loft face. The CG height axis may extend through the club head center of gravity and may intersect the club head depth plane at a first intersection point. The club head CG height of the golf club head may be measured along the CG height axis between the club head center of gravity and the first intersection point. The CG depth of the club head at the center of gravity of the club head may be measured parallel to the ground plane and normal to the front plane between (a) the second intersection point and (b) the third intersection point, wherein (a) the second intersection point is at the front (b) the third point of intersection is located at the intersection between the vertical axis of the club head and the ground plane. The face height measured parallel to the lobe face may be from about 33 mm to about 71 mm. The first performance characteristic may include a head CG height of less than or equal to about 5.08 mm. The second performance characteristic may include a CG performance ratio of less than or equal to 0.56, eg, a CG performance ratio defined by (a) 76.2 mm minus face height divided by (b) club head CG depth.

Other examples and implementations are also disclosed herein. These examples and implementations can be found in the drawings, in the claims and/or in this description.

Turning to the drawings, FIG. 1 illustrates a front view of golf club head 1000 including club head body 1100 and face portion 1200 . Working face portion 1200 includes striking face 1210 . FIG. 2 illustrates a side cross-sectional view of golf club head 1000 along line II-II of FIG. 1 . FIG. 3 shows a bottom view of golf club head 1000 . 1-3 illustrate golf club head 1000 at address relative to ground plane 1010 . Wherein, with reference to the front view of golf club head 1000 (FIG. 1), hosel shaft 1710 is located at an angle of 60 degrees to ground plane 1010; Substantially orthogonal to ground plane 1010 .

In this embodiment, the tip body 1100 and the face portion 1200 comprise separate pieces of material that are joined together, such as by a welding process. However, in other examples, the face portion 1200 may comprise a single piece of material with one or more portions of the club head body 1100 , such as the club head front 1110 , the club head crown 1120 , sole 1130 , heel 1140 , toe 1150 and/or rear 2160 . Head-facing surface 1160 of golf club head 1000 includes striking face 1210 , face portion 1200 , and at least a portion of club head front 1110 . In some embodiments, head forward facing surface 1160 may also include at least a portion of head sole 1130 . In the same or a different embodiment, the club head front 1110 can include a striking face 1210 and/or a working face portion 1200 .

Face portion 1200 includes strike face 1210 having face center point 1211 , face edge 1212 , and face height 1213 . The striking face center point 1211 is located at the geometric center point of the striking face edge 1212 and the midpoint of the working face height 1213 in this example. In the same or other examples, striking face center point 1211 may also be centered relative to designed impact zone 1250 , which may be defined by the area of groove 1259 of striking face 1210 . As another approach, the striking face center point 1211 may be set according to the definition of a golf governing body such as the United States Golf Association (USGA). For example, the striking face center point 1211 may be determined according to Section 6.1 of the USGA Specification for Measuring the Flexibility of Golf Club Heads (USGA-TPX 3004, Version 1.0.0, May 1, 2008) (Accessible at: http ://www.usga.org/equipment/testing/protocols/Procedure-For-Measuring-The-Flexibility-Of-A-Golf-Club-Head/) (“The Flexibility Protocol”).

Golf club head 1000 includes loft face 2270 ( FIG. 2 ) that is tangent to striking face center point 1211 at least at striking face 1210 . The face height 1213 can be measured between the strike face top 1215 and the strike face bottom 1216 of the strike face edge 1212 parallel to the high face 2270, and in this or other examples, the face height 1213 can be about 33 millimeters (mm) to about 71mm.

The striking face edge 1212 , including the striking face top end 1215 and the striking face bottom end 1216 defining the face height 1213 , does not necessarily define the entire face portion 1200 . For example, as shown in FIG. 1 , striking surface 1210 is bounded by striking surface edge 1212 and is only a portion of working surface portion 1200 . In some examples, strikeface 1210 may include a roll radius and/or a convex radius, and strikeface edge 1212 may be defined along the contour of workface portion 1200 away from the transition boundary of the roll radius and/or convex radius of strikeface 1210 . For example, FIG. 2 includes an enlarged view of a portion of the top transition boundary of the golf club head 1000, highlighting the vertical roll radius 2170 extending along the striking face 1210 and showing how the striking face tip 1215 is disposed on the forward facing surface of the club head. 1160 away from the vertical roll radius 2170 at the top transition boundary. 2 also includes an enlarged view of a portion of the sole transition boundary of golf club head 1000, highlighting vertical roll radius 2170 extending vertically along striking face 1210, and showing how striking face sole 1216 is positioned forward of the club head. Towards the bottom transition boundary of surface 1160 away from vertical roll radius 2170 .

In the same or other embodiments, striking face edge 1212 may be determined from the edge of the striking plate comprising the striking face. For example, face portion 1200 includes striking face 1220 , wherein striking face 1210 forms an outer surface of face face 1220 , and striking plate 1220 is joined to front club head 1110 along striking plate edge 1221 . In this example, striking surface edge 1221 defines at least a portion of striking surface edge 1212 including top and bottom portions of striking surface edge 1212 in which striking surface tip 1215 and Strike face bottom ends 1216 are respectively provided to define face height 1213, although there may be other examples where the strike plate edge of the strike plate can define most or all of the strike face edge.

2, golf club head 1000 also includes club head center of gravity (CG) 2500, club head depth plane 2310, and CG height axis 2320, wherein club head depth plane 2310 extends through striking face center point 1211 and is perpendicular to Loft face 2270 and CG height axis 2320 extend through club head center of gravity 2500 and perpendicularly intersect club head depth plane 2310 at intersection point 2801 .

Club head center of gravity 2500 includes CG height 2520 and CG depth 2510 , which set club head center of gravity 2500 in relation to golf club head 1000 . In this example, CG height 2520 may be measured along CG height axis 2320 between club head center of gravity 2500 and intersection point 2801 . As shown in FIG. 2 , CG depth 2510 may be measured parallel to ground plane 1010 between intersection points 2802-2803. In this example, intersection point 2802 is defined by the intersection between ground plane 1010 and front plane 2280 , wherein front plane 2280 extends through striking face center point 1211 , parallel to hosel axis 1710 , and when golf club head 1000 Orthogonal to ground plane 1010 when at address. Additionally, intersection point 2803 is defined by the intersection between ground plane 1010 and club head vertical axis 1610 , wherein club head vertical axis 1610 extends through club head center of gravity 2500 and is aligned with the ground plane when golf club head 1000 is at address. 1010 quadrature. Club head center of gravity 2500 may also be positioned relative to ground level 1010 , wherein club head CG elevation 2530 of club head center of gravity 2500 may be measured along club head vertical axis 1610 between center of mass 2750 and ground level 1010 .

Club head body 1100 of golf club head 1000 also includes hosel structure 1217 ( FIG. 1 ) and hosel shaft 1710 extending along the center of the bore of hosel structure 1217 . In this example, the hosel coupling mechanism of golf club head 1000 includes hosel structure 1217 and bushing 1411 , where bushing 1411 is coupleable to an end of golf club 1410 . Sleeve 1411 may be coupled with hosel structure 1217 in a variety of configurations, allowing golf club 1410 to be secured to hosel structure 1217 at various angles relative to hosel shaft 1710 . However, there may be other examples where the club 1410 is non-adjustably secured to the hosel structure 1217 .

Golf club heads according to this disclosure may be configured to exhibit one or more optimized characteristics that optimize or balance the performance of the golf club head. For example, one characteristic of a golf club head that the present design seeks to optimize is the characteristic of face height and/or face size. Maximizing the face height and/or face size of a golf club head can have several benefits, such as increasing the target strike area of the striking face so as to relax the requirements on the Golf shots produce better results. In addition, a greater striking face height and/or size may better transfer energy to the golf ball once the striking face and golf ball collide, and thus may increase the characteristic time or "spring effect" of the golf club head, For longer range golf shots. In some examples, the height or size of the striking face may be increased to achieve a characteristic time limit set by the golf ball governing body, such as the characteristic time of 239 microseconds (μs) set by the USGA in its compliance specification. limit.

However, indiscriminately increasing face height and/or size may adversely affect performance in other ways, such as affecting the golf ball's launch angle, ball spin, and/or ball speed after impact with the striking face. For example, increasing the face height and/or size can reduce the CG depth between the center of gravity of the golf club head and the center point of the striking face to cause the center of gravity to move forward, thereby reducing the dynamic loft of the golf club head, and This reduces the launch angle of the golf ball. As another example, increasing the face height and/or size increases the CG height between the center of gravity and the depth plane of the club head to lift the center of gravity away from the sole of the golf club head, thereby preventing contact between the striking face and the golf ball. This prevents the golf club head from reducing the amount of backspin the golf ball produces after impact, and thus reduces the distance the ball will travel due to backspin.

Considering the above, the height or size of the face of a golf club head should be balanced with the location of the center of gravity. With respect to golf club head 1000 , striking face 1210 has been increased to include an increased face size and/or face height 1213 to provide a larger impact area and transfer more energy to golf ball 2900 . Specifically, golf club head 1000 may be configured such that face height 1213 may be from about 33 mm to about 71 mm to provide a larger impact area and transfer more energy after impact with golf ball 2900 . In some examples, the area of striking face 1210 , including the increased working surface area, may be from about 23.6 square centimeters (cm ² ) to about 45.2 cm ² .

While the aforementioned face dimensions and/or face height 1213 have been increased, golf club head 1000 still limits CG height 2520 from increasing toward club head top portion 1120 and/or deviating too far from club head depth plane 2310 . For example, golf club head 1000 includes a first optimized characteristic that satisfies the following relationship 1:

|CG height ₂₅₂₀ |≤5.08mm [Relationship 1]

There may be examples where the CG height 2520 may be about 0 mm to the limit of 5.08 mm for relation 1. In other examples, CG height 2520 may also reach a maximum value of approximately 4.45 mm, 3.81 mm, or 3.18 mm. In some embodiments, the first optimization characteristic may reduce backspin of golf ball 2900 through a gear effect between striking face 1210 and golf ball 2900 for better performance. Although the club head center of gravity 2500 is shown in FIG. 2500 may be located above depth plane 2310 such that CG height 2520 extends between depth plane 2310 and clubhead top 1120 while still satisfying Relation 1 above.

Furthermore, given the increased face size and/or face height 1213 described above, golf club head 1000 still restricts movement of center of gravity 2500 toward striking face 1212, thereby preventing CG depth 2510 from decreasing excessively. For example, golf club head 1000 includes a second optimized characteristic that satisfies the following relation 2:

[Relationship 2]

Therefore, the relationship between face height 1213 and CG depth 2510 is balanced according to relation 2 to maintain the second optimum characteristic of less than or equal to 0.56, thereby limiting the amount by which CG depth 2510 can decrease toward striking face 1210 . There may be examples where the CG depth 2510 may be from about 25 mm to about 102 mm. In the same or other examples, CG depth 2510 can be at least about 39 mm. In some embodiments, the second optimization characteristic may increase or optimize at least one of the dynamic loft of the golf club head 1000 or the launch angle of the golf ball 2900 after impact between the golf club head 1000 and the golf ball 2900. one.

In some examples, golf club head 1000 may be configured to include only one of the first or second optimization characteristics described above. For example, golf club head 1000 may include a first optimized characteristic but not a second optimized characteristic, thus satisfying relation 1 but not necessarily satisfying relation 2. As another example, golf club head 1000 may include a second optimal characteristic but not the first optimal characteristic, thereby satisfying Relation 2 without necessarily satisfying Relation 1 . Additionally, there may be embodiments in which golf club head 1000 satisfies both Relation 1 and Relation 2, and thus includes the first and second optimized characteristics.

Golf club head 1000 may also include a third optimized characteristic relative to head volume (HV) 2600 of golf club head 1000 . In this example, the club head body 1000 of the golf club head 1000 includes a tee-type body having a club head volume greater than or equal to 420 cubic centimeters (cc), and thus the club head body 1000 has a volume greater than or equal to 420 head volume value. For example, the club head body 1000 may include a club head volume of 420 cc, thus having a club head volume value of 420 . As another example, golf club head 1000 may include a head volume of 460 cc, thus having a head volume value of 460. Golf club head 1000 may include a club head volume of up to about 470 cc, in some embodiments, and/or may include a total club head weight of about 185 grams to about 225 grams. In some specific examples, the total head weight may be about 202 grams, and/or the head volume may be about 460 cc.

A third optimization characteristic may control the relationship between the club head volume 2600 and the location of the center of gravity 2500, and may be defined to satisfy the following relationship 3:

[relationship 3]

In some cases, club head volume 2600 may be increased to adjust, for example, the moment of inertia (MOI) of golf club head 1000 . However, increasing club head volume without limit can have an adverse effect on other characteristics of the golf club head. For example, increasing club head volume 2600 may cause club head center of gravity 2500 to shift toward club head front 1110, toward club head top 1120, in other undesired directions, and/or away from a desired center of gravity position or orientation, thereby hindering the golf ball. Clubhead 1000 performance. These undesired changes in the position of the center of gravity can adversely affect one or more characteristics of the golf club head, such as launch speed, launch angle, gearing, backspin, and/or launch distance. Accordingly, a third optimization characteristic for balancing the relationship between club head volume 2600 and the location of club head center of gravity 2500 may be established to produce desired and balanced attributes for golf club head 1000 . For example, the weight distribution of golf club head 1000 may be configured to satisfy Relation 3, so that golf club head 1000 may exhibit a third optimized characteristic, thereby allowing for increased club head volume 2600 for contact between striking face 1210 and golf ball 2900 After the golf ball in between impacts, a greater moment of inertia is obtained and more energy is transferred to the golf ball 2900. In the same or other embodiments, the weight distribution of golf club head 1000 can be configured to limit the reduction of CG depth 2510 toward club head front 1110 due to increased club head volume 2600, whereby after golf ball impact, At least one of the dynamic loft of striking face 1210 or the launch angle of golf ball 2900 is increased. In addition, the weight distribution of golf club head 1000 can be configured to limit the increase in CG height 2520 toward club head crown 1120 due to increased club head volume 2600, resulting in contact with the golf ball through striking face 1210 after impact with the golf ball. The gear effect between 2900 reduces the backspin of the golf ball 2900.

Considering the above, in order to obtain the third optimal characteristic conforming to relation 3, the CG depth 2510 may be configured to be greater than or equal to 40.64mm. In the same or other embodiments, the absolute value of CG height 2520 may be less than or equal to 2.54 mm. It should be noted that the characteristic of CG height 2520 is an absolute value, considering that in some embodiments, club head center of gravity 2500 may be above or below club head depth plane 2310 . Although the third optimization characteristic has a lower bound of at least 425, there may be other embodiments where the third optimization characteristic may be defined according to other lower bounds. For example, in some embodiments, the third optimization characteristic may include a lower limit of at least 435 or 445. The location of the club head center of gravity 2500 can also be designed or configured according to other features of the golf club head 1000 to satisfy relationship 3 and/or obtain the third optimal characteristic. For example, the location of the club head center of gravity 2500 can be configured such that the CG depth 2510 is comprised between about 25% and about 80% of the club head depth 2312, where the club head depth 2312 is from the center point of the striking face 1211 to the rear of the club head The intersection point where the exterior of portion 2160 intersects head depth plane 2310 is measured. As another example, the location of the club head center of gravity 2500 may be configured such that the CG height 2520 is comprised between about 0% and about 13% of the CG height axis length 2322, wherein the CG height axis length 2322 is measured from the club head top 1120 The measurement is made from the intersection point where the outer portion of the sole 1130 intersects the CG height axis 2320 to the intersection point where the outer portion of the sole 1130 intersects the CG height axis 2320 .

Golf club head 1000 may also include a fourth optimization characteristic that corresponds to the balance between hosel MOI 1711 (FIG. 1) and horizontal MOI 1811 (FIG. 1). A hosel MOI 1711 is defined around hosel shaft 1710 . Horizontal MOI 1811 is defined around club head horizontal axis 1810 that extends from club head heel 1140 to club head toe 1150 through club head center of gravity 2500 and when golf club head 1000 is at address on ground plane 1010 The position is parallel to the ground plane 1010.

In some examples, horizontal MOI 1811 may be increased to limit the rotation of golf club head 1000 about horizontal axis 1810 of golf club head 1000 when striking face 1210 is biased towards top 1120 or sole 1130 of club head 1130 and hits golf ball 2600, thereby The golf club head 1000 requirements are relaxed for these high or low mishits. For example, to increase the horizontal MOI 1811 , weight may be added or repositioned toward the front of the club head 1110 and/or the rear of the club head 2160 . In the same or other examples, golf club head 1000 can be extended toward front club head 1110 and/or rear club head 2160 .

However, these adjustments or changes to increase the horizontal MOI 1811 can be set to a point where they are appropriate before they begin to affect other golf club head characteristics. For example, if not properly balanced, unrestricted adjustments to increase the horizontal MOI 1811 may result in an excessive increase in the hosel MOI 1711, thereby increasing the resistance of the golf club head 1000 to rotation about the hosel axis 1710, and thus making the individual It is difficult to "spin" the golf club during swinging of the golf club to a particular setting or to "square" the golf club head 1000 when the golf club head 1000 impacts the golf ball 2600 . The increase in hosel MOI 1711 may also limit or reduce the gear effect between golf ball 2600 and striking face 1210, which would otherwise affect some proper spin of golf ball 2600 during an off-center impact.

To reduce hosel MOI 1711 , golf club head 1000 may be designed to limit the distance between hosel shaft 1710 and any additional or arbitrary mass of golf club head 1000 . These methods for reducing the hosel MOI 1711, if not properly balanced, may be incompatible with some of the above-described methods for increasing the horizontal MOI 1811. Therefore, adding or redistributing weight to golf club head 1000 to increase horizontal MOI 1811 should be balanced against maintaining or limiting increases in hosel MOI 1711 .

Based on the above, the fourth optimization characteristic of golf club head 1000 controls the relationship between horizontal MOI 1811 and hosel MOI 1711 to satisfy the following relationship 4:

(horizontal MOI ₁₈₁₁ ) ≥ 39% (hosel MOI ₁₇₁₁ ) [relationship 4]

There may be examples where golf club head 1000 may be configured such that the fourth optimal characteristic of golf club head 1000 may exceed the requirements of Equation 4. For example, in some embodiments, the fourth optimization characteristic of golf club head 1000 may be configured such that horizontal MOI 1811 is greater than or equal to 40% of hosel MOI 1711, greater than or equal to 45% of hosel MOI 1711, or greater than or equal to 50% of hosel MOI 1711. In this example, the horizontal MOI 1811 is about 3740 grams square centimeters (g·cm ² ), but there may be examples where the horizontal MOI 1811 may be between about 2800 g·cm 2 . cm ² to about 4300g. within the range of ^cm2 . In this example, the hosel MOI 1711 is about 9370g. cm ² , but in the same or other examples, the hosel MOI 1711 may be between about 7000 g. cm ² and about 11000g. ^cm2 range.

Golf club head 1000 may also include a fifth optimization characteristic corresponding to the balance between hosel MOI 1711 and vertical MOI 1611 (FIG. 1). Vertical MOI 1611 is defined around club head vertical axis 1610 that extends from club head top 1120 to club head sole 1130 through club head center of gravity 2500 and is aligned with ground plane when golf club head 1000 is at address. 1010 quadrature. In this example, the vertical MOI 1611 is about 5300 g. cm ² , but in the same or other examples, the vertical MOI 1611 may be between about 4700g. cm ² and about 6000g. within the range of ^cm2 .

In some examples, vertical MOI 1611 may be increased to limit the movement of golf club head 1000 about club head vertical axis 1610 when hitting golf ball 2600 with striking face 1210 offset toward heel 1140 or offset toward toe 1150. rotation, thereby relaxing golf club head 1000 requirements for these heel-side or toe-side mishits. For example, to increase the vertical MOI 1611, weight may be added or relocated toward the heel 1140 and/or toe 1150 of the club head. In the same or other examples, the golf club head can be extended toward the heel 1140 and/or the toe 1150 .

However, these adjustments or changes made to increase the vertical MOI 1611 may reach a point where appropriate before these adjustments or changes begin to affect other golf club head characteristics. For example, as noted above, unrestricted adjustments to increase vertical MOI 1611 can result in an excessive increase in hosel MOI 1711 if not properly balanced, thereby increasing the resistance to rotation of golf club head 1000 about hosel axis 1710, if not properly balanced. Furthermore, some methods for reducing hosel MOI 1711 may not be compatible with some of the methods described above for increasing vertical MOI 1611 if not properly balanced. Therefore, adding or redistributing weight to golf club head 1000 to increase vertical MOI 1611 should be balanced against maintaining or limiting hosel MOI 1711 increases.

Based on the above, a fifth optimization characteristic of golf club head 1000 controls the relationship between vertical MOI 1611 and hosel MOI 1711 to satisfy the following relationship 5:

(Vertical MOI ₁₆₁₁ ) ≥ 59% (Hosset MOI ₁₇₁₁ ) [Relationship 5]

There may be examples where golf club head 1000 may be configured such that its fifth optimized characteristic exceeds the requirements of relation 5. For example, in some embodiments, the fifth optimized characteristic of golf club head 1000 may be configured such that vertical MOI 1611 is greater than or equal to 60% of hosel MOI 1711, greater than or equal to 65% of hosel MOI 1711, or greater than or equal to 65% of hosel MOI 1711. Equal to 70% of hosel MOI 1711. In some examples, golf club head 1000 may be configured such that its fourth optimized characteristic satisfies Relation 4 while its fifth optimized characteristic also satisfies Relation 5.

In some embodiments, golf club head 1000 may be configured to exhibit the first, second, third, fourth, and/or or the fifth optimal characteristic. To this end, golf club head 1000 may include weight structure 2700 disposed toward sole 1130 and rear of club head 2160 as shown in FIGS. 2-3 . In some configurations, weight structure 2700 may be designed and/or configured to satisfy the constraints imposed by Relationship 1, Relationship 2, Relationship 3, Relationship 4, and/or Relationship 5, thereby balancing the working surface height of striking face 1210 or size, club head volume 2600 , location of center of gravity 2500 , and/or different moments of inertia of golf club head 1000 .

As can be seen from FIG. 3 , weight structure 2700 may be positioned with reference to clock grid 3500 , which may be aligned with striking face 1210 . For example, clock grid 3500 includes 12 o'clock ray 3512 which in this embodiment is aligned with striking face center point 1211. 12 o'clock ray 3512 is orthogonal to front intersection line 3271 which passes through Intersection definition of face 2270 (FIGS. 2-3) and ground plane 1010 (FIGS. 1-2). Clock grid 3500 may be placed centrally along 12 o'clock ray 3512 at the midpoint between the front end of front 1110 and the back end of rear 2160 . In the same or other examples, clock grid center point 3515 may be centrally placed near the geometric center point of golf club head 1000 . The clock grid 3500 also includes a 3 o'clock ray 3503 extending toward the heel 1140 and a 9 o'clock ray 3509 extending toward the toe 1150 .

In this embodiment, the weight perimeter 2705 of the weight structure 2700 is positioned toward the rear of the club head 2160 at least partially between the 4 o'clock ray 3504 and the 8 o'clock ray 3508 of the clock grid 3500 , while the weight center 2750 Located between 5 o'clock ray 3505 and 7 o'clock ray 3507. In examples such as this example, weight perimeter 2705 is completely bounded between 4 o'clock ray 3504 and 8 o'clock ray 3508 . While weight perimeter 2705 is defined outside of golf club head 1000 in this example, other examples may exist where a weight edge may extend into golf club head 1000 or be defined inside golf club head 1000 . In some examples, the position of weight 2700 may be established with reference to a wider area. For example, in these examples, the weight perimeter 2705 of the weight structure 2700 may be disposed toward the rear of the club head 2160 at least partially between the 4 o'clock ray 3504 and the 9 o'clock ray 3509 of the clock grid 3500, while the weight Center 2750 may be located between 5 o'clock ray 3505 and 8 o'clock ray 3508 .

In the same or other embodiments, weight structure 2700 can extend or shift toward heel 1140 . For example, weight perimeter 2705 and/or center of weight 2750 may be shifted toward 4 o'clock ray 3504 instead of toward 9 o'clock ray 3509 . The operation of biasing the weight structure 2700 toward the clubhead heel end 1140 may allow the hosel MOI 1711 around the hosel shaft 1710 to be reduced by limiting the distance between the hosel shaft 1710 and the weight structure 2700, thereby reducing the hosel MOI 1711 during the swing. Golf club head 1000 may be allowed to rotate about hosel shaft 1710 more easily.

In some examples, weight structure 2700 may include a mass of about 2 grams to about 50 grams, and/or a volume of 1 cc to about 30 cc. In this example, the weight structure 2700 protrudes from the outer profile of the sole 1130 of the club head, and thus is at least partially outside the outer profile, to allow greater adjustment of the center of gravity 2500 of the club head.

In the same or other examples, the weight structure 2700 can include a removable weight 2790, wherein the removable weight 2790 can include a mass of about 0.5 grams to about 30 grams, and satisfy Relation 1, Relation 2, Relation 3, Relation 4 if desired and/or relationship 5, the removable weight 2790 can be replaced by one or more other similar weights to adjust the position of the center of gravity 2500 of the club head. In the same or other examples, center of weight 2750 may include at least one of a center of gravity of weight structure 2700 , a center of gravity of removable weight 2790 , a geometric center of weight structure 2700 , and/or a geometric center of removable weight 2790 .

Center of gravity 2750 may be positioned relative to ground plane 1010 and center of gravity axis 2340 , which extends between center of gravity 2750 and ground level 1010 . The center of weight elevation axis 2340 is orthogonal to the ground plane 1010 at address when the golf club head 1000 is at address. Accordingly, the center of gravity elevation 2730 for the center of gravity 2750 may be measured along the center of gravity axis 2340 between the center of gravity 2750 and ground level. Furthermore, center of gravity depth 2710 for center of gravity 2750 may be measured parallel to ground plane 1010 between intersection points 2802 and 2804 . In this example, intersection point 2804 is defined by the intersection between address ground plane 1010 and center of weight elevation axis 2340 when golf club head 1000 is at address. In the same or other embodiments, center of gravity 2750 can be positioned such that weight distance 2751 ( FIG. 2 ), which separates club head center of gravity 2500 from center of gravity 2750 , can be from about 25 mm to about 102 mm.

There may also be embodiments in which the face portion 1200 may include a reduced thickness on the backside of the striking face 1210 and/or between the face portion 1200 and the front of the club head as desired. The joints between 1110 are reinforced with one or more reinforcement structures. Other mass redistribution mechanisms may also be used if it is desired to satisfy Relation 1, Relation 2, Relation 3, Relation 4, and/or Relation 5.

In some embodiments, the relationship or ratio between club head center of gravity 2500 and center of weight 2750 may be configured to allow one or more of Relation 1, Relation 2, Equation 3, Equation 4, or Equation 5 to be satisfied. For example, the elevation ratio defined by the ratio of the center of gravity elevation 2730 to the club head CG elevation 2530 may be greater than 0.44 to help keep the club head center of gravity 2500 closer to the club head sole 1130 . As another example, the depth ratio defined by the ratio of center of weight depth 2710 to club head CG depth 2510 may be less than 2.54 to prevent CG depth 2510 from decreasing excessively toward club head front 1110 . There may be some examples where the head CG elevation 2530 may be less than about 28.5 mm, the center of gravity elevation 2730 may be less than about 12.5 mm, and/or the center of gravity depth 2710 may be greater than about 99.7 mm.

FIG. 4 shows a flowchart of a method 4000 that may be used to configure, form, and/or manufacture a golf club head according to the present disclosure. In some examples, the golf club head may be similar to golf club head 1000 (FIGS. 1-3) described above.

Method 4000 includes block 4100 for providing a club head body of a golf club head including a club head front. In some examples, the club head body can be similar to club head body 1100 ( FIGS. 1-3 ), and the club head front can be similar to club head front 1110 ( FIGS. 1-3 ).

Block 4200 of method 4000 includes coupling a face portion to a club head front, wherein the club head front includes a striking face having an increased face size. In some examples, face portion may be similar to face portion 1200 ( FIGS. 1-2 ), with striking face 1210 having the increased face dimensions described above relative to striking face 1210 . For example, in some examples, the increased face size of the striking face may allow the striking face to have a face height of up to about 71 mm.

Method 4000 may include block 4300 for configuring the golf club head to include a first optimization characteristic in which the distance between the center of gravity of the golf club head and the club head depth plane of the golf club head The CG height can be from about 0 mm to about 5.08 mm or 0.200 inches. In some examples, the first optimization characteristic may be similar to the optimization characteristic described above with reference to Relation 1 for balancing golf club head face height or size with respect to center of gravity height. In some examples, the CG height can be similar to CG height 2520 (FIG. 2); the center of weight can be similar to club head center of gravity 2500 (FIG. 2); and the club head depth plane can be similar to club head depth plane 2310 (FIG. 2).

There may be embodiments where method 4000 may include block 4400 for configuring the golf club head to include a second optimized characteristic in which (a) 76.2mm (or about 3.0 inches ) minus the height of the working face and (b) the ratio between the CG depth between the center point of the striking face and the center of gravity is less than 0.56. In some examples, the second optimization characteristic may be similar to the optimization characteristic described above with reference to Relationship 2 for balancing golf club head face height or size with respect to center of gravity depth. For example, face height may be similar to face height 1213 and CG depth may be similar to CG depth 2510.

In some examples, method 4000 may include block 4500 for configuring the golf club head to include a third optimization characteristic in which the club head volume value plus the difference between CG depth and CG height The result of the ratio is greater than or equal to 425. In some embodiments, the third optimization characteristic may be similar to the optimization characteristic described above with reference to relationship 3 for balancing club head volume with respect to center of gravity position. For example, club head volume values may be similar to those of club head volume 2600 ( FIG. 2 ), CG depth may be similar to CG depth 2510 , and CG height may be similar to CG height 2520 .

In some embodiments, method 4000 may include block 4600 for configuring the golf club head to include a fourth optimized characteristic in which the horizontal moment of inertia of the golf club head is greater than or equal to the higher 39% of the moment of inertia of the hosel. In some embodiments, the fourth optimization characteristic may be similar to the optimization characteristic described above with reference to relationship 4 for balancing horizontal MOI 1811 relative to hosel MOI 1711 ( FIG. 1 ). In the same or other examples, the value of the horizontal moment of inertia may be similar to the value of the horizontal moment of inertia described above with reference to horizontal MOI 1811 . Additionally, the value of the hosel moment of inertia may be similar to the value of the hosel moment of inertia described above with reference to hosel MOI 1711 . There may also be examples where the horizontal moment of inertia and/or the hosel moment of inertia may be balanced according to other characteristics, such as according to the vertical moment of inertia of the golf club head.

Block 4700 of method 4000 may be performed in some embodiments for configuring the golf club head to include a fifth optimized characteristic in which the golf club head has a vertical moment of inertia greater than or equal to the golf ball 59% of the hosel moment of inertia of the clubhead. In some embodiments, the fifth optimization characteristic may be similar to the optimization characteristic described above with reference to relationship 5 for balancing vertical MOI 1611 relative to hosel MOI 1711 ( FIG. 1 ). In the same or other examples, the value of the vertical moment of inertia may be similar to the value of the vertical moment of inertia described above with reference to vertical MOI 1611 . Additionally, the magnitude of the hosel moment of inertia may be similar to the magnitude of the hosel moment of inertia described above with reference to hosel MOI 1711 . There may also be examples where the vertical moment of inertia and/or the hosel moment of inertia may be balanced according to other characteristics, such as the horizontal moment of inertia according to block 4500 .

In this example, method 4000 also includes block 4800 of providing a mass redistribution mechanism to adjust the center of gravity of the golf club head. In some examples, the mass redistribution mechanism may be configured to allow the golf club head to meet the requirements of blocks 4300 , 4400 , 4500 , 4600 , and/or 4700 of method 4000 . The mass redistribution mechanism can include a weight structure such as weight structure 2700 (FIGS. 2-3), which can adjust the position of the center of weight toward the sole and/or rear of the golf club head, if desired. In the same or other embodiments, the mass redistribution mechanism may include a reduced thickness of portions of the face of the golf club head, such as the back of the striking face and/or the golf club head, if desired. The junction between the face portion of the head and the club head body is reinforced with one or more reinforcing structures.

In some examples, one or more different blocks of method 4000 may be combined into a single block or performed concurrently, and/or the order of the blocks may be changed. For example, in some embodiments, blocks 4100 and 4200 may be combined, such as in at least a portion of the face portion and the club head body comprising a single piece of material. In the same or other examples, block 4800 can be combined with one or more of blocks 4100, 4300, 4400, 4500, 4600, and/or 4700 and can be adjusted by adjusting center of gravity, face height, face size, club head volume and/or one or more moments of inertia of the golf club head (eg, via the mass redistribution mechanism of block 4800). In the same or other examples, some of the blocks of method 4000 may be subdivided into several sub-blocks. For example, block 4100 may be subdivided into several sub-blocks for arranging different portions of the club head body of the golf club head. There can also be examples where method 4000 can include additional or different blocks. For example, method 4000 may include another block for providing or coupling a golf club to a club head body of block 4100 . Furthermore, there may be examples where method 4100 may include only a portion of the blocks described above. For example, in some embodiments, one or more of blocks 4300, 4400, 4500, 4600, and/or 4700 may be optional, and/or if not required to reach blocks 4300, 4400, 4500, 4600, and/or or block 4700, then block 4800 may be skipped. Other variations for method 4000 may be implemented without departing from the scope of the present disclosure.

While a golf club head having optimized properties and related methods have been described herein with reference to certain embodiments, various changes may be made without departing from the spirit or scope of this disclosure. For example, while the above examples may be described in connection with driver-type golf clubs, the devices, methods, and articles described herein may be applicable to other types of golf clubs, such as fairway wood-type golf clubs, hybrid golf clubs, An iron-type golf club, a pitching-type golf club, or a putter-type golf club. Alternatively, the devices, methods, and articles described herein may be adapted to other types of athletic equipment, such as hockey sticks, tennis rackets, fishing poles, ski poles, and the like.

Additional examples of these and other changes have been given in the foregoing specification. Likewise, other variants of different embodiments having one or more features of the various figures are conceivable. Accordingly, the description, claims and drawings herein are intended to illustrate the scope of the present disclosure and not to limit the scope of the present disclosure. It is intended that the scope of this application shall be limited only to the extent required by the appended claims.

Golf club heads having optimized properties and related methods discussed herein may be implemented in a variety of embodiments, and some of these embodiments discussed above do not necessarily represent a complete description of all possible embodiments. Rather, the detailed description of the drawings, and the drawings themselves, disclose at least one preferred embodiment, and may disclose alternative embodiments.

All elements claimed in any particular claim are essential to the embodiment claimed in that particular claim. Accordingly, replacement of one or more claimed elements constitutes reconstruction, not repair. Additionally, benefits, other advantages, and solutions to addressed problems have been described with reference to specific embodiments. However, no benefit, advantage, solution to a problem, or any element that may cause any benefit, advantage, or solution to occur or become more apparent should not be construed as critical, required, or essential to all claims or to any claim Indispensable features or elements, unless the benefit, advantage, solution, or element is clearly stated in the claims.

Since the rules of golf may change from time to time (e.g., old rules are removed or amended or new rules are adopted by golf standards organizations and/or governing bodies such as the United States Golf Association (USGA), Royal & Ancient Golf Club of St. Andrews (R&A), etc.) , golf equipment associated with the devices, methods, and articles described herein may or may not comply with the Rules of Golf at any particular time. Accordingly, golf equipment related to the devices, methods, and articles described herein may be advertised, offered for sale, and/or sold as compliant or non-compliant golf equipment. The devices, methods, and articles of manufacture described herein are not so limited.

Furthermore, if the embodiments and/or limitations disclosed herein: (1) are not expressly required in the claims; and/or restricted equivalents, then these implementations and restrictions will not be donated to the public in accordance with the Contribution Principles.

Claims (24)

1. A golf club head, comprising:

a head body comprising:

the front part of the club head; the back part of the club head;

a head heel portion; a toe portion of the club head;

the bottom of the club head; the top of the club head; and

a hosel structure having a bore for receiving a golf club shaft, the bore having a hosel shaft;

a face portion located at the head front portion and including:

a hitting surface center point;

the periphery of the striking face; and

a face height defined by the face periphery, the face center point located at a midpoint of the face height;

the center of gravity of the club head; and

at least one of:

a first performance characteristic; or

A second performance characteristic;

wherein:

when the golf club head is at an address position over a ground plane: a head vertical axis extends through the head center of gravity and is orthogonal to the ground plane; and a head horizontal axis extends through the head center of gravity and is orthogonal to the head vertical axis;

the loft surface of the golf club head is tangent to the face center point;

a front plane of the golf club head extends through the striking face centerpoint parallel to the hosel axis and orthogonal to the ground plane;

a head depth plane extends through the strikeface centerpoint parallel to the head horizontal axis and perpendicular to the loft plane;

a CG height axis extends through the head center of gravity and perpendicularly intersects the head depth plane at a first intersection point;

measuring a head CG height of the head center of gravity along the CG height axis between the head center of gravity and the first intersection point;

measuring a head CG depth of the head center of gravity parallel to and orthogonal to the ground plane between: a second intersection point located at the intersection between the front plane and the ground plane, and a third intersection point located at the intersection between the head vertical axis and the ground plane;

the depth of the club head CG is 25mm to 102 mm;

the height of the club head CG is 0mm to 5.08 mm;

the working face height measured parallel to the loft surface is 33mm to 71 mm;

the first performance characteristic includes: the height of the club head CG is less than or equal to 5.08mm, an

The second performance characteristic includes: a CG performance ratio less than or equal to 0.56, wherein the CG performance ratio is determined by:

(a)76.2mm minus the height of the work surface, divided by

(b) The head depth;

the head body including a weight structure positioned toward the sole portion and the rear portion of the head body;

the clock grid comprises at least:

a 12 o' clock ray;

3 o' clock ray;

4 o' clock ray;

a 5 o' clock ray;

an 8 o' clock ray; and

a 9 o' clock ray;

when the golf club head is in an address position above the ground plane, the 12 o' clock ray is aligned with the strike face centerpoint and orthogonal to a front intersection between the high strike face and the ground plane as viewed from a bottom view of the golf club head;

the center of the clock grid is located at the midpoint between the front end of the head front part and the rear end of the head rear part along the 12 o' clock ray;

the 3 o' clock ray extends toward the heel portion;

the 9 o' clock ray extends toward the toe portion;

the perimeter of the weight structure is bounded between the 4 o 'clock ray and the 9 o' clock ray; and

the center of gravity of the weight structure is positioned between the 5 o 'clock ray and the 8 o' clock ray.

2. The golf club head of claim 1, wherein:

the golf club head includes the first performance characteristic and the second performance characteristic.

3. The golf club head of claim 1, wherein:

the golf club head includes the first performance characteristic.

4. The golf club head of claim 1, wherein:

the golf club head includes the second performance characteristic.

5. The golf club head of claim 1, wherein:

the face portion including a striking plate joined to the club head forward portion along a striking plate edge of the striking plate;

the striking plate edge defines at least a portion of a striking face periphery of the striking face;

the striking face periphery comprises: the top end of the striking face and the bottom end of the striking face; and

the face height is measured from the face bottom end to the face top end.

6. The golf club head of claim 1, further comprising:

a club head forward surface comprising the striking face;

wherein:

the striking face includes:

a vertical roll radius extending along the striking face and through a center point of the striking face; and

the striking face periphery comprises:

a striking face tip at a top transition boundary where the contour of the club head forward surface deviates from the vertical roll radius; and

a striking face bottom end at a bottom transition boundary where the profile of the face portion deviates from the vertical roll radius;

and

the face height is measured from the face bottom end to the face top end.

7. The golf club head of claim 1, wherein:

the weight structure is as follows:

allowing the striking face to include an increased face size limited by the face height such that, upon a golf impact between the striking face and a golf ball, a larger striking area is obtained and more energy is transferred to the golf ball;

limiting a decrease in the club head CG depth toward the club head front due to the increased face size, thereby increasing at least one of a dynamic loft angle of the striking face or a launch angle of the golf ball after the golf impact; and

limiting the increase in height of the CG of the club head toward the top of the club head due to the increased face size, thereby reducing backspin of the golf ball after the golf impact by a gearing effect between the striking surface and the golf ball.

8. The golf club head of claim 1, wherein:

the area of the striking surface is 23.6cm²To 45.2cm²。

9. The golf club head of claim 1, wherein:

the head body comprises a tee body;

the head volume of the golf club head is 420cc to 470 cc; and

the golf club head has a head weight of 185 grams to 225 grams.

10. The golf club head of claim 1, wherein:

the weight structure at least partially protrudes from an outer contour of the sole portion; and

the weight structure includes:

a mass of 2 grams to 50 grams;

a volume of 1cc to 30 cc.

11. The golf club head of claim 1, wherein:

the height of the club head CG is 0mm to 3.81 mm.

12. The golf club head of claim 1, wherein:

the height of the club head CG is 0mm to 4.45 mm.

13. The golf club head of claim 1, wherein:

the distance between the head center of gravity and the weight center of the weight structure is 25mm to 102 mm.

14. The golf club head of claim 1, wherein:

a weight center elevation axis extending between the weight center and the ground plane orthogonal to the ground plane when the golf club head is at the address position;

measuring a head CG elevation along the head vertical axis between the head center of gravity and the ground plane;

measuring a weight center elevation along the weight center elevation axis between the head center of gravity and the ground plane; and

an elevation ratio defined by the center of weight elevation to the head CG elevation is greater than 0.44.

15. The golf club head of claim 1, wherein:

a weight center elevation axis extending between the weight center and the ground plane orthogonal to the ground plane when the golf club head is at the address position;

measuring a weight center depth of the weight center parallel to the ground plane between: a second intersection point located at the intersection between the front plane and the ground plane; and a fourth intersection point located at the intersection between the weight center elevation axis and the ground plane; and

a depth ratio defined by the center-of-weight depth being less than 2.54 relative to the depth of the club head CG.

16. A golf club head, comprising:

a head body comprising:

the front part of the club head; the back part of the club head;

a head heel portion; a toe portion of the club head;

the bottom of the club head; the top of the club head; and

a hosel structure having a bore for receiving a golf club shaft, the bore having a hosel shaft;

a face portion coupled at the head front portion and including a striking face, the striking face including: the central point of the striking surface is positioned at the midpoint of the height of the working surface; and

the center of gravity of the club head;

wherein,

when the golf club head is at an address position over a ground plane: a head vertical axis extends through the head center of gravity and is orthogonal to the ground plane; and a head horizontal axis extends through the head center of gravity and is orthogonal to the head vertical axis;

the loft surface of the golf club head is tangent to the face center point;

a front plane of the golf club head extends through the striking face centerpoint parallel to the hosel axis and orthogonal to the ground plane;

a head depth plane extends through the strikeface centerpoint parallel to the head horizontal axis and perpendicular to the loft plane;

a CG height axis extends through the head center of gravity and perpendicularly intersects the head depth plane at a first intersection point;

measuring a head CG height of the head center of gravity along the CG height axis between the head center of gravity and the first intersection point;

measuring a head CG depth of the head center of gravity parallel to the ground plane and orthogonal to the front plane between: a second intersection point located at the intersection between the front plane and the ground plane; and a third intersection point located at the intersection between the head vertical axis and the ground plane;

the working face height defined by the striking face periphery and measured parallel to the loft face is 33mm to 71 mm;

(a) a CG performance ratio of 76.2mm minus the face height to (b) the head CG depth of less than or equal to 0.56;

the head body comprises a tee body;

the head volume of the golf club head is 420cc to 470 cc;

the golf club head has a head weight of 185 grams to 225 grams and a head CG height of 0mm to 3.18 mm;

the depth of the club head CG is 25mm to 102 mm; and

the head body including a weight structure positioned toward a sole portion and a rear portion of the head body;

the clock grid comprises at least:

a 12 o' clock ray;

3 o' clock ray;

4 o' clock ray;

a 5 o' clock ray;

an 8 o' clock ray; and

a 9 o' clock ray;

when the golf club head is in an address position above the ground plane, the 12 o' clock ray is aligned with the strike face centerpoint and orthogonal to a front intersection between the high strike face and the ground plane as viewed from a bottom view of the golf club head;

the center of the clock grid is located at the midpoint between the front end of the head front part and the rear end of the head rear part along the 12 o' clock ray;

the 3 o' clock ray extends toward the heel portion;

the 9 o' clock ray extends toward the toe portion;

the perimeter of the weight structure is bounded between the 4 o 'clock ray and the 9 o' clock ray; and

the center of gravity of the weight structure is positioned between the 5 o 'clock ray and the 8 o' clock ray.

17. The golf club head of claim 16, wherein:

the weight structure is as follows:

allowing the striking face to include an increased face size defined by the face height to achieve a larger striking area and greater energy transferred to a golf ball following a golf impact between the striking face and the golf ball;

limiting a decrease in the CG depth of the head toward the striking face due to the increased face size to increase at least one of a dynamic loft angle of the striking face or a launch angle of the golf ball after the golf impact; and

limiting the increase in height of the CG of the club head toward the top of the club head due to the increased face size, thereby reducing backspin of the golf ball after the golf impact by a gearing effect between the striking surface and the golf ball.

18. The golf club head of claim 16, wherein:

the distance between the head center of gravity and the weight center of the weight structure is 25mm to 102 mm.

19. The golf club head of claim 16, wherein:

the height of the club head CG is 0mm to 3.81 mm.

20. The golf club head of claim 16, wherein:

the height of the club head CG is 0mm to 4.45 mm.

21. A method for providing a golf club head, the method comprising:

set up the head main part, the head main part includes:

the front part of the club head; the back part of the club head;

a head heel portion; a toe portion of the club head;

the bottom of the club head; the top of the club head; and

a hosel structure having a bore for receiving a golf club shaft, the bore having a hosel shaft;

coupling a face portion to the front club head;

the face portion includes a striking face having:

a striking face center point, a striking face periphery, and a working face height defined by the striking face periphery, the striking face center point located at a midpoint of the working face height; and

establishing at least one of:

a first performance characteristic of the golf club head; or

A second performance characteristic of the golf club head;

wherein:

when the golf club head is at an address position over a ground plane: a head vertical axis extends through a head center of gravity of the golf club head and is orthogonal to the ground plane; and a head horizontal axis extends through the head center of gravity and is orthogonal to the head vertical axis;

the loft surface of the golf club head is tangent to the face center point;

a front plane of the golf club head extends through the striking face centerpoint parallel to the hosel axis and orthogonal to the ground plane;

a head depth plane extends through the strikeface centerpoint parallel to the head horizontal axis and perpendicular to the loft plane;

a CG height axis extends through the head center of gravity and perpendicularly intersects the head depth plane at a first intersection point;

measuring a head CG height of the golf club head along the CG height axis between the head center of gravity and the first intersection point;

measuring a head CG depth of the head center of gravity parallel to the ground plane and orthogonal to the front plane between: a second intersection point disposed at an intersection between the front plane and the ground plane; and a third intersection point disposed at an intersection between the head vertical axis and the ground plane;

the working face height measured parallel to the loft surface is 33mm to 71 mm;

the depth of the club head CG is 25mm to 102 mm;

the height of the club head CG is 0mm to 5.08 mm;

the first performance characteristic includes:

the height of the head CG is less than or equal to 5.08 mm; and

the second performance characteristic includes:

a CG performance ratio defined by (a)76.2mm minus the face height divided by (b) the head CG depth is less than or equal to 0.56

The head body including a weight structure positioned toward the sole portion and the rear portion of the head body;

the clock grid comprises at least:

a 12 o' clock ray;

3 o' clock ray;

4 o' clock ray;

a 5 o' clock ray;

an 8 o' clock ray; and

a 9 o' clock ray;

when the golf club head is in an address position above the ground plane, the 12 o' clock ray is aligned with the strike face centerpoint and orthogonal to a front intersection between the high strike face and the ground plane as viewed from a bottom view of the golf club head;

the center of the clock grid is located at the midpoint between the front end of the head front part and the rear end of the head rear part along the 12 o' clock ray;

the 3 o' clock ray extends toward the heel portion;

the 9 o' clock ray extends toward the toe portion;

the perimeter of the weight structure is bounded between the 4 o 'clock ray and the 9 o' clock ray; and

the center of gravity of the weight structure is positioned between the 5 o 'clock ray and the 8 o' clock ray.

22. The method of claim 21, wherein:

the golf club head includes the first performance characteristic and the second performance characteristic.

23. The method of claim 21, wherein:

the golf club head includes the first performance characteristic.

24. The method of claim 21, wherein:

the golf club head includes the second performance characteristic.