CN106914007B - Glof club head and correlation technique with optimization characteristics - Google Patents

Abstract

Embodiments of golf club heads with optimized characteristics are presented herein. Other examples and related methods are also disclosed herein.

Description

Golf club heads with optimized properties and related methods

CROSS-REFERENCE TO RELATED APPLICATIONS

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

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

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

US Patent Application No. 13/826,111, filed March 14, 2013, with the US Patent and Trademark Office.

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

technical field

The present disclosure relates generally to sports equipment, and more particularly to golf club heads with optimized properties and related methods.

Background technique

Golf club heads typically include various features that can be designed or configured to improve one or more performance characteristics of the golf club head. However, there is often an inherent interplay between these various features, such that adjusting or configuring one feature may inherently change the other, and such change is often unfavorable. For example, enlarging the hitting face of a golf club to provide a larger hitting area may adversely alter 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 between the different features impact, undesired performance results may follow.

With the above in mind, further development of the mutually balanced features of the golf club will improve the performance of the golf club.

SUMMARY OF THE INVENTION

The present application seeks to provide a golf club head and method that overcomes at least or partially overcomes at least one of the aforementioned disadvantages of the prior art.

In one aspect, the present application provides a golf club head. The golf club head may include: a striking face having a striking face center point; and

The high striking surface is tangent to the center point of the striking surface;

A head body, the head body comprising:

a weight structure positioned toward the head bottom and the head rear of the head body;

as well as

The inside of the head, which is defined by:

the front of the clubhead;

the rear of the clubhead;

club head heel;

club head toe;

the top of the clubhead; and

the sole of the clubhead; and

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

club head center of gravity;

Clock grid, including:

12 o'clock ray;

3 o'clock rays;

4 o'clock rays;

5 o'clock ray;

8 o'clock ray; and

9 o'clock ray;

When the golf club head is at address from a bottom view of the golf club head, the 12 o'clock ray is aligned with the hitting face center point and is aligned with the hitting face Orthogonal to the front intersection line between the ground plane;

the clock grid is centered along the 12 o'clock ray at a midpoint between a front end of the head front and a rear end of the head rear;

the 3 o'clock ray extends toward the heel of the clubhead;

the 9 o'clock ray extends toward the toe;

the edge 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, the club head horizontal axis, when the golf club head is at address on ground level, the shaft a head horizontal axis extending through the head center of gravity from the head heel to the head toe and parallel to the ground plane;

a hosel moment of inertia, about the hosel axis; and

a horizontal moment of inertia, about the horizontal axis of the club head;

Wherein, the moment of inertia of the hosel is between 7000g·cm ² to 11000g·cm ² ,

as well as

The horizontal moment of inertia is greater than or equal to 39% of the hosel moment of inertia.

According to another aspect of the present application, a method for providing a golf club head is also provided. The method may include:

providing a striking face, the striking face having a striking face center point; and

providing a high striking surface, the high striking surface being tangent to the center point of the striking surface;

A head body is provided, the head body comprising:

a weight structure positioned toward the head bottom and the head rear of the head body;

as well as

The inside of the head, which is defined by:

the front of the clubhead;

the rear of the clubhead;

club head heel;

club head toe;

the top of the clubhead; and

the bottom of the head;

as well as

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

coupling the golf club shaft to the hosel structure;

Clock grid, including:

12 o'clock ray;

3 o'clock rays;

4 o'clock rays;

5 o'clock ray;

8 o'clock ray; and

9 o'clock ray;

When the golf club head is at address from a bottom view of the golf club head, the 12 o'clock ray is aligned with the hitting face center point and is aligned with the hitting face Orthogonal to the front intersection line between the ground plane;

the clock grid is centered along the 12 o'clock ray at a midpoint between a front end of the head front and a rear end of the head rear;

the 3 o'clock ray extends toward the heel of the clubhead;

the 9 o'clock ray extends toward the toe;

the edge 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,

in:

When the golf club head is at address on ground level, a club head horizontal axis extends through the club head center of gravity of the golf club head from the club head heel to the club head toe, and parallel to said ground plane;

When the golf club head is at address on the ground plane, a club head vertical axis extends from the head top to the club head sole through the club head's center of gravity and is perpendicular to the ground plane ;

Providing the head body includes at least one of the following:

establishing a horizontal moment of inertia about the horizontal axis of the 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

A vertical moment of inertia about the vertical axis of the head is established, wherein the vertical moment of inertia is greater than or equal to 59% of the hosel moment of inertia about the hosel axis.

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 shows a flowchart of a method that may be used to provide, form, and/or manufacture golf club heads in accordance with 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 present disclosure. Additionally, elements in the figures are not necessarily drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help improve understanding of the embodiments of the present disclosure. The same reference numbers refer to the same elements in different drawings.

The terms "first," "second," "third," "fourth," etc., which may be found in the description and claims, are used to distinguish between similar elements and not necessarily to describe a particular sequential order or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments described herein are capable of operation in orders other than, for example, those illustrated or otherwise described herein. Furthermore, the terms "comprising", and "having" and any variations thereof are intended to cover non-exclusive inclusion such that a process, method, system, article, apparatus, or device comprising a series of elements is not necessarily limited to those elements, but Other elements that are inherent to the process, method, system, article, apparatus or apparatus may be included or not expressly recited.

The terms "left", "right", "front", "rear", "top", "bottom", "on", "under" etc. that may exist in the specification and claims are all used for descriptive purposes and not necessarily to describe a permanent relative position. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the apparatus, methods and/or articles of manufacture described herein, eg, can be used in other ways than those shown or otherwise described herein. Orientation other than the orientation of the operation.

The terms "couple," "coupled," "couples," "coupling," etc. are to be construed broadly and refer to mechanically or otherwise connecting two or more element. Coupling (whether mechanically or otherwise) may be of any length of time, such as permanent or semi-permanent coupling or only momentary coupling.

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

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

Detailed ways

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

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

In one embodiment, a method of providing a golf club head includes providing a head body having a head interior and a hosel structure. The head interior may be defined by a head front, a head rear, a head heel, a head toe, a head top, and a head bottom. The hosel structure may have a hole for receiving a golf club shaft, wherein the hole may have a hosel shaft. The method may also include coupling the golf club shaft to the hosel structure. 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 golf club head from the heel to the toe and be parallel to 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 head to the sole of the head through the center of gravity of the head and be perpendicular to the ground plane. Additionally, providing the head body may include at least one of the following: (a) establishing a horizontal moment of inertia about the horizontal axis of the 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) Establishing a vertical moment of inertia about the vertical axis of the 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 head body including a head front, a head rear, a head heel, a head toe, a head sole, a 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 head, head volume, head center of gravity, and optimization characteristics, wherein the striking face includes the striking face center point, and the head volume is measured in cc and includes A head volume with a value greater than 420. When the golf club head is at address on the ground plane, the club head vertical axis extends through the club head center of gravity and is normal to the ground plane, and the club head horizontal axis extends through the club head center of gravity and is normal to the club head vertical axis . The hitting face of the golf club head may be tangent to the center point of the hitting face. The front plane of the golf club head may extend through the striking face center point and be parallel to the hosel axis. The clubhead depth plane may extend parallel to the clubhead horizontal axis and perpendicular to the hit face through the striking face center point. The CG height axis may extend through the head center of gravity and may intersect the head depth plane perpendicularly at a first intersection. The CG height of the head at the center of gravity of the head may be measured along the CG height axis between the center of gravity of the head and the first intersection. The clubhead CG depth of the clubhead's center of gravity can be measured parallel to the ground plane and normal to the front plane between (a) the second intersection and (b) the third intersection, where (a) the second intersection 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 clubhead and the ground plane. The optimized characteristic may be defined by (b) the ratio between (a) the head volume value plus the head CG depth divided by the absolute value of the head CG height. The optimization characteristic may be greater than or equal to 425.

In one example, a golf club head may include a head body including a head front, a head rear, a head heel, a head toe, a head sole, a 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 and a head center of gravity, the striking face being located at the front of the club head and including the striking face center point. When the golf club head is at address on the ground plane, the club head vertical axis extends through the club head center of gravity and is orthogonal to the ground plane, and the club head horizontal axis extends through the club head center of gravity and is orthogonal to the club head vertical axis . The hitting face of the golf club head may be tangent to the center point of the hitting face. The front plane of the golf club head may extend through the striking face center point and be parallel to the hosel axis. The head depth plane may extend through the face center point parallel to the head horizontal axis and perpendicular to the face. The CG height axis may extend through the head center of gravity and may intersect the head depth plane perpendicularly at a first intersection. The CG height of the head at the center of gravity of the head may be measured along the CG height axis between the center of gravity of the head and the first intersection. The clubhead CG depth of the clubhead's center of gravity can be measured parallel to the ground plane and normal to the front plane between (a) the second intersection and (b) the third intersection, where (a) the second intersection 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 clubhead and the ground plane. The absolute value of the height of the head CG may be less than or equal to 2.54mm. The head CG depth may be greater than or equal to 40.64mm.

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

In one example, a golf club head may include a head body, a face portion, and a head center of gravity, and at least one of the first performance characteristic or the second performance characteristic. The head body may include a head front, a head rear, a head heel, a head toe, a head sole, a head top, and a hosel structure having an aperture for receiving a golf club shaft , wherein the hole can have a hosel shaft. The face portion may be located at the front of the club head and may include a face center point, a face edge, and a face height defined by the face edge. When the golf club head is at address on ground plane, the club head vertical axis extends through the club head center of gravity and is orthogonal to the ground plane, and the club head horizontal axis extends through the club head center of gravity and is orthogonal to the club head vertical axis. The hitting face of the golf club head may be tangent to the center point of the hitting face. The front of the golf club head may extend through the striking face center point and parallel to the hosel axis. The head depth plane may extend through the face center point parallel to the head horizontal axis and perpendicular to the face. The CG height axis may extend through the head center of gravity and may intersect the head depth plane at a first intersection. The CG height of the head at the center of gravity of the head may be measured along the CG height axis between the center of gravity of the head and the first intersection. The clubhead CG depth of the clubhead's center of gravity can be measured parallel to the ground plane and orthogonal to the front plane between (a) the second intersection and (b) the third intersection, where (a) the second intersection is at the front The intersection between the top plane and the ground plane, (b) the third intersection is located at the intersection between the vertical axis of the clubhead and the ground plane. The working face height, measured parallel to the high strike 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, the CG performance ratio is defined by (a) 76.2 mm minus face height divided by (b) head CG depth.

In one example, a golf club head may include a head body, a face portion, and a head center of gravity. The head body may include a head front, a head rear, a head heel, a head toe, a head sole, a head top, and a hosel structure having an aperture for receiving a golf club shaft , the hole has a hosel shaft. A face portion may be coupled to the front of the club head and may include a face having a face center point, a face edge, and a face height. When the golf club head is at address on ground plane, the club head vertical axis extends through the club head center of gravity and is orthogonal to the ground plane, and the club head horizontal axis extends through the club head center of gravity and is orthogonal to the club head vertical axis. The hitting face of the golf club head may be tangent to the center point of the hitting face. The front of the golf club head may extend through the striking face center point and parallel to the hosel axis. The head depth plane may extend through the face center point parallel to the head horizontal axis and perpendicular to the face. The CG height axis may extend through the head center of gravity and may intersect the head depth plane at a first intersection. The CG height of the head at the center of gravity of the head may be measured along the CG height axis between the center of gravity of the head and the first intersection. The clubhead CG depth of the clubhead's center of gravity may be measured parallel to the ground plane and orthogonal to the front plane between (a) the second intersection and (b) the third intersection, where (a) the second intersection is at the front The intersection between the top plane and the ground plane, (b) the third intersection is located at the intersection between the vertical axis of the clubhead and the ground plane. The working face height may be from about 33 mm to about 71 mm, as defined by the striking face edge and measured parallel to the high striking face. 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 tee-type body. The head volume of the golf club head may be from about 420cc to about 470cc. 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 from about 25 mm to about 102 mm. The head body may include weight structures positioned toward the bottom and rear of the head body.

In one embodiment, a method for providing a golf club head may include providing a head body, wherein the head body has a head front, a head rear, a head heel, a toe, a head A sole, a head top, and a hosel structure having a hole for receiving a golf club shaft, the hole having a hosel shaft. The method may also include coupling a face portion to the front of the head, the face portion including a strike face having a face center point, a face edge, and a face height defined by the strike face edge. The method also includes establishing at least one of a first performance characteristic of the golf club head or a second performance characteristic of the golf club head. When the golf club head is at address on the ground plane, the club head vertical axis extends through the head center of gravity of the golf club head and is orthogonal to the ground plane, and the club head horizontal axis extends through the club head center of gravity and is in line with the club head The vertical axis is orthogonal. The hitting face of the golf club head may be tangent to the center point of the hitting face. The front of the golf club head may extend through the striking face center point and parallel to the hosel axis. The head depth plane may extend through the face center point parallel to the head horizontal axis and perpendicular to the face. The CG height axis may extend through the head center of gravity and may intersect the head depth plane at a first intersection. The head CG height of the golf club head may be measured along the CG height axis between the head center of gravity and the first intersection. The clubhead CG depth of the clubhead's center of gravity can be measured parallel to the ground plane and orthogonal to the front plane between (a) the second intersection and (b) the third intersection, where (a) the second intersection is at the front The intersection between the top plane and the ground plane, (b) the third intersection is located at the intersection between the vertical axis of the clubhead and the ground plane. The working face height, measured parallel to the high strike 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, the CG performance ratio is defined by (a) 76.2 mm minus face height divided by (b) 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 shows a front view of a golf club head 1000 that includes a head body 1100 and a face portion 1200 . The working face portion 1200 includes a striking face 1210 . FIG. 2 shows 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 . FIGS. 1-3 show golf club head 1000 at address relative to ground plane 1010 . Wherein, referring to the front view of golf club head 1000 (FIG. 1), hosel shaft 1710 is located at a 60 degree angle to ground plane 1010; and with reference to the side view of golf club head 1000 (FIG. 2), hosel shaft 1710 Substantially orthogonal to ground plane 1010 .

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

The face portion 1200 includes a strike face 1210 having a strike face center point 1211 , a strike face edge 1212 and a 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, the striking face center point 1211 may also be centered relative to the designed strike zone 1250 , which may be defined by the area of the groove 1259 of the striking face 1210 . As another approach, the hitting face center point 1211 may be located 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 in accordance with Section 6.1 of the USGA Specification for Measuring Flexibility of Golf Club Heads (USGA-TPX 3004, Version 1.0.0, May 1, 2008) (available at: http ://www.usga.org/equipment/testing/protocols/Procedure-For-Measuring-The-Flexibility-Of-A-Golf-Club-Head/) ("Flexibility Specification").

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

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

In the same or other embodiments, the striking face edge 1212 may be determined from the edge of the strike plate that includes the striking face. For example, the face portion 1200 includes a strike plate 1220, wherein the strike face 1210 forms the outer surface of the face plate, and the strike plate 1220 is joined to the head front 1110 along the strike plate edge 1221. In this example, the strike plate edge 1221 defines at least a portion of the strike face edge 1212 that includes the top and bottom portions of the strike face edge 1212 in which the strike face top end 1215 and The striking face bottom ends 1216 are each positioned to define the working face height 1213, but there may be other examples where the striking face edge of the striking face can define most or all of the striking face edge.

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

The club head center of gravity 2500 includes a CG height 2520 and a CG depth 2510 that locate the club head center of gravity 2500 in relation to the golf club head 1000 . In this example, CG height 2520 may be measured along CG height axis 2320 between head center of gravity 2500 and intersection 2801 . As shown in FIG. 2, the CG depth 2510 may be measured parallel to the ground plane 1010 between the intersections 2802-2803. In this example, the point of intersection 2802 is defined by the intersection between the ground plane 1010 and the front plane 2280, which extends through the striking face center point 1211, is parallel to the hosel axis 1710, and is when the golf club head 1000 Orthogonal to ground plane 1010 when at address. In addition, the intersection point 2803 is defined by the intersection between the ground plane 1010 and the head vertical axis 1610, which extends through the head center of gravity 2500 and is the same as the ground plane when the golf club head 1000 is at address 1010 quadrature. The clubhead center of gravity 2500 may also be positioned relative to the ground plane 1010 , where the clubhead CG elevation 2530 of the clubhead center of gravity 2500 may be measured along the clubhead vertical axis 1610 between the center of weight 2750 and the ground plane 1010 .

The head body 1100 of the golf club head 1000 also includes a hosel structure 1217 ( FIG. 1 ) and a hosel shaft 1710 extending along the center of the bore of the hosel structure 1217 . In this example, the hosel coupling mechanism of golf club head 1000 includes hosel structure 1217 and hub 1411 , wherein hub 1411 can be coupled to one end of golf club 1410 . Bushing 1411 may be coupled with hosel structure 1217 in various 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 the present 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 the golf club head that this design seeks to optimize is that of face height and/or face size. Maximizing the face height and/or face size of the golf club head can have several beneficial effects, such as increasing the target impact area of the hitting face, in order to relax the requirements on the club head for Golf shots produce better results. In addition, a greater 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 reach a characteristic time limit set by golf ball governing bodies, such as the characteristic time of 239 microseconds (μs) set by the USGA in its compliance specification limit.

However, indiscriminately increasing the face height and/or size may adversely affect performance in other ways, such as affecting the golf ball launch angle, ball spin and/or ball speed after impact with the striking face. For example, increasing the face height and/or size may reduce the CG depth between the golf club head's center of gravity 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 The launch angle of the golf ball is thereby reduced. As another example, increasing the face height and/or size can increase 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 the striking face from contacting the golf ball. The gear effect between, thereby preventing the golf club head from reducing the amount of spin of the golf ball produced after impact, and thus reducing the distance the ball will travel due to the spin.

Considering the above, the height or size of the face of the golf club head should be balanced with the location of the center of gravity. With regard 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 strike area and transfer more energy to golf ball 2900. Specifically, the golf club head 1000 may be configured such that the 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 the golf ball 2900 . In some examples, the area of the striking face 1210 that includes the increased working face area may be about 23.6 square centimeters (cm ² ) to about 45.2 cm ² .

Although the face size and/or face height 1213 described above have been increased, the golf club head 1000 still restricts the CG height 2520 from increasing toward the head top portion 1120 and/or deviating too far from the head depth plane 2310. For example, golf club head 1000 includes a first optimized characteristic that satisfies Relation 1 below:

|CG height ₂₅₂₀ |≤5.08mm [Relation 1]

There may be examples where the CG height 2520 may be about 0 millimeters to the limit of 5.08 mm of relation 1. In other examples, the CG height 2520 may also reach a maximum value of about 4.45mm, 3.81mm, or 3.18mm. In some embodiments, the first optimized characteristic may reduce the spin of the golf ball 2900 through gearing between the striking face 1210 and the golf ball 2900 for better performance. Although the head center of gravity 2500 is shown in FIG. 2 as being below the depth plane 2310 such that the CG height 2520 extends between the depth plane 2310 and the head sole 1130, there may be embodiments in which the head center of gravity 2500 may lie above depth plane 2310 such that CG height 2520 extends between depth plane 2310 and head top 1120 while still satisfying Relationship 1 above.

Furthermore, given the increased face size and/or face height 1213 described above, the golf club head 1000 still limits the movement of the center of gravity 2500 toward the striking face 1210, thereby preventing an excessive reduction in the CG depth 2510. For example, golf club head 1000 includes a second optimized characteristic that satisfies Relation 2 below:

Therefore, the relationship between working face height 1213 and CG depth 2510 is balanced according to Relationship 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 be reduced towards striking face 1210. There may be examples where the CG depth 2510 may be about 25 mm to about 102 mm. In the same or other examples, the CG depth 2510 may 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 golf club head 1000 or the launch angle of golf ball 2900 after impact between golf club head 1000 and golf ball 2900 One.

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

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 head body 1100 of the golf club head 1000 includes a drive-type body having a head volume greater than or equal to 420 cubic centimeters (cc), and thus the head body 1100 has a greater than or equal to The head volume value of 420. For example, head body 1100 may include a head volume of 420cc, and thus have a head volume value of 420. As another example, golf club head 1000 may include a head volume of 460cc, and thus have a head volume value of 460. Golf club head 1000 may include a 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 460cc.

The third optimization characteristic can control the relationship between the head volume 2600 and the position of the center of gravity 2500, and can be defined to satisfy the following relationship 3:

In some cases, head volume 2600 may be increased to adjust, for example, the moment of inertia (MOI) of golf club head 1000 . However, increasing head volume without limit can have adverse effects on other characteristics of the golf club head. For example, increasing head volume 2600 may cause the head center of gravity 2500 to shift toward the head front 1110, toward the head crown 1120, toward other undesired directions, and/or away from the desired center of gravity location or direction, thereby hindering the golf ball The performance of the clubhead 1000. 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, spin, and/or launch distance. Accordingly, a third optimization characteristic for balancing the relationship between the head volume 2600 and the position of the head center of gravity 2500 can be established to produce desired and balanced properties for the golf club head 1000 . For example, the weight distribution of the golf club head 1000 may be configured to satisfy Relationship 3 such that the golf club head 1000 may exhibit the third optimized characteristic, thereby allowing the head volume 2600 to be increased to interact with the golf ball 2900 at the striking face 1210 After the golf ball hits between, 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 the golf club head 1000 may be configured to limit the reduction of the CG depth 2510 towards the head front 1110 due to the increased head volume 2600, whereby after golf ball impact, At least one of the dynamic loft of the striking face 1210 or the launch angle of the golf ball 2900 is increased. Additionally, the weight distribution of the golf club head 1000 may be configured to limit the increase in the CG height 2520 towards the head crown 1120 due to the increased head volume 2600, thereby passing through the striking face 1210 and the golf ball after impact with the golf ball. The gear effect between the 2900 reduces the spin of the golf ball 2900.

Considering the above, in order to obtain the third optimized characteristic in accordance with relation 3, the CG depth 2510 may be configured to be greater than or equal to 40.64 mm. In the same or other embodiments, the absolute value of the CG height 2520 may be less than or equal to 2.54 mm. It should be noted that the CG height 2520 is characterized as an absolute value, considering that in certain embodiments, the head center of gravity 2500 may be above or below the head depth plane 2310. Although the third optimization characteristic has a lower bound of at least 425, there may be other embodiments in which 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 bound of at least 435 or 445. The location of the club head center of gravity 2500 may also be designed or configured according to other features of the golf club head 1000 to satisfy Relationship 3 and/or to obtain a third optimal characteristic. For example, the location of the head center of gravity 2500 may be configured such that the CG depth 2510 is comprised between about 25% and about 80% of the head depth 2312 from the striking face center point 1211 to the rear of the head The intersection of the exterior of 2160 with the head depth plane 2310 is measured. As another example, the position of the 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 from the head top 1120 Measured from the intersection of the outside of the head sole 1130 with the CG height axis 2320 to the intersection of the outside of the head sole 1130 with the CG height axis 2320 .

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

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

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

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 hosel MOI 1711, if not properly balanced, may be incompatible with some of the above methods for increasing horizontal MOI 1811. Therefore, weight gain or redistribution to golf club head 1000 in order to increase the horizontal MOI 1811 should be balanced with maintaining or limiting the increase in hosel MOI 1711 .

From the above, the fourth optimized characteristic of the golf club head 1000 controls the relationship between the level MOI1811 and the hosel MOI1711 to satisfy the following relationship 4:

(Horizontal MOI ₁₈₁₁ ) ≥ 39% (Hypsheath MOI ₁₇₁₁ ) [Relation 4]

There may be examples where golf club head 1000 may be configured such that the fourth optimized characteristic of golf club head 1000 may exceed the requirements of Equation 4. For example, in some embodiments, the fourth optimized characteristic of golf club head 1000 may be configured such that the horizontal MOI 1811 is greater than or equal to 40% of the hosel MOI 1711, greater than or equal to 45% of the 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 to about 4300g﹒ in 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 can be between about 7000 g﹒ cm ² and about 11000g﹒ cm ² range.

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

In some examples, the vertical MOI 1611 may be increased to limit the amount of movement of the golf club head 1000 about the head vertical axis 1610 when the striking face 1210 is biased toward the heel 1140 or toward the toe 1150 to hit the golf ball 2600 . Rotation, thereby relaxing the golf club head 1000 requirements for these heel-side or toe-side miss hits. For example, to increase the vertical MOI 1611, weight may be added or the location of the weight may be changed toward the heel 1140 and/or toe 1150. In the same or other examples, the golf club head may extend toward the heel portion 1140 and/or the toe portion 1150 .

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

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

(Vertical MOI ₁₆₁₁ ) ≥ 59% (Hipsheath MOI ₁₇₁₁ ) [Relation 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 Equal to 70% of hosel MOI 1711. In some examples, golf club head 1000 may be configured such that its fourth optimal characteristic satisfies relation 4 while its fifth optimal characteristic also satisfies relation 5.

In some embodiments, golf club head 1000 may be configured to exhibit first, second, third, fourth and/or as described above by adjusting the distribution of mass or the relationship between the various elements of golf club head 1000 or the fifth optimization feature. To this end, the golf club head 1000 may include a weight structure 2700 positioned toward the head sole 1130 and the head rear 2160 as shown in FIGS. 2-3 . In some configurations, the weight structure 2700 may be designed and/or positioned to satisfy constraints imposed by Relation 1, Relation 2, Relation 3, Relation 4, and/or Relation 5 to balance the working face height of striking face 1210 or Size, 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 , the weight structure 2700 can be positioned with reference to a clock grid 3500 , which can be aligned with the striking face 1210 . For example, the clock grid 3500 includes a 12 o'clock ray 3512 aligned in the present embodiment with the striking face center point 1211. The 12 o'clock ray 3512 is orthogonal to the front intersection line 3271, which passes through a high strike The intersection of face 2270 (FIGS. 2-3) and ground plane 1010 (FIGS. 1-2) is defined. The clock grid 3500 may be centered along the 12 o'clock ray 3512 at the midpoint between the front end of the front portion 1110 and the rear end of the head rear portion 2160. In the same or other examples, the clock grid center point 3515 may be centered proximate the geometric center point of the 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 head rear 2160, at least partially bounded between the 4 o'clock rays 3504 and 8 o'clock rays 3508 of the clock grid 3500, while the weight center 2750 Located between the 5 o'clock ray 3505 and the 7 o'clock ray 3507. In an example such as this one, the weight perimeter 2705 is completely bounded between the 4 o'clock ray 3504 and the 8 o'clock ray 3508. Although the weight perimeter 2705 is defined outside the golf club head 1000 in this example, there may be other examples where the weight edge may extend into the golf club head 1000 or be defined inside the golf club head 1000 . In some examples, the location 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 positioned toward the head rear 2160, at least partially bounded between the 4 o'clock rays 3504 and 9 o'clock rays 3509 of the clock grid 3500, while the weight The center 2750 may be located between the 5 o'clock ray 3505 and the 8 o'clock ray 3508.

In the same or other embodiments, the weight structure 2700 may extend or shift toward the heel 1140 . For example, in addition to the 9 o'clock ray 3509, the weight perimeter 2705 and/or the weight center 2750 may be shifted toward the 4 o'clock ray 3504. The act of biasing the weight structure 2700 towards the heel end 1140 may allow for a reduction in the hosel MOI 1711 about the hosel shaft 1710 by limiting the distance between the hosel shaft 1710 and the weight structure 2700, thereby during swinging The golf club head 1000 may be allowed to rotate about the 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 contour of the head sole 1130 and is thus at least partially outside the outer contour to allow for greater adjustment of the head center of gravity 2500 .

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

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

There may also be embodiments in which the face portion 1200 may include a reduced thickness that may be on the backside of the striking face 1210 and/or on 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 Relationship 1, Relationship 2, Relationship 3, Relationship 4, and/or Relationship 5.

In some embodiments, the relationship or ratio between the club head center of gravity 2500 and the center of weight 2750 may be configured to allow one or more of Relationship 1, Relationship 2, Equation 3, Equation 4, or Equation 5 to be satisfied. For example, the elevation ratio, defined by the ratio of the center of weight elevation 2730 to the head CG elevation 2530 , may be greater than 0.44 to help keep the club head center of gravity 2500 closer to the head sole 1130 . As another example, the depth ratio, defined by the ratio of the center of weight depth 2710 to the head CG depth 2510 , may be less than 2.54 to prevent the CG depth 2510 from reducing excessively toward the head front 1110 . There may be some embodiments in which 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 set up, form and/or manufacture golf club heads in accordance with the present disclosure. In some examples, the golf club head may be similar to the golf club head 1000 described above (FIGS. 1-3).

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

Block 4200 of method 4000 includes coupling the face portion to the head front, wherein the head front includes a striking face having an increased face size. In some examples, the working face portion may be similar to working face portion 1200 ( FIGS. 1-2 ), and striking face 1210 has the increased working face dimensions described above with respect 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.

The method 4000 may include block 4300 for configuring the golf club head to include a first optimized characteristic in which a distance between a center of gravity of the golf club head and a head depth plane of the golf club head is The CG height may 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 Equation 1 for balancing golf club head face height or size relative to center of gravity height. In some examples, the CG height may be similar to CG height 2520 (FIG. 2); the center of weight may be similar to head center of gravity 2500 (FIG. 2); and the head depth plane may be similar to head depth plane 2310 (FIG. 2).

There may be embodiments in which method 4000 may include block 4400 for configuring the golf club head to include a second optimized characteristic in which (a) 76.2 mm (or about 3.0 inches) ) minus the difference in working face height and (b) the CG depth between the striking face center point 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 relative to center of gravity depth. For example, the work surface height may be similar to the work surface height 1213 and the CG depth may be similar to the CG depth 2510.

In some examples, method 4000 can include block 4500 for configuring the golf club head to include a third optimized characteristic in which the head volume value plus a 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 relation 3 for balancing the head volume relative to the center of gravity position. For example, head volume values may be similar to those of 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 implementations, the method 4000 can 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 a higher 39% of the hosel moment of inertia. In some embodiments, the fourth optimization characteristic may be similar to the optimization characteristic described above with reference to relation 4 for balancing the horizontal MOI 1811 relative to the 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 the horizontal MOI 1811 . Furthermore, 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 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 club head. In some embodiments, the fifth optimization characteristic may be similar to that described above with reference to relation 5 for balancing the vertical MOI 1611 relative to the 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 the vertical MOI 1611 . Furthermore, 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 vertical moment of inertia and/or 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, the method 4000 also includes block 4800 for setting the 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 block 4300 , block 4400 , block 4500 , block 4600 , and/or block 4700 of method 4000 . The mass redistribution mechanism may include a weight structure, such as weight structure 2700 (FIGS. 2-3), which, if desired, may adjust the position of the center of weight toward the sole and/or rear of the golf club head. In the same or other embodiments, the mass redistribution mechanism may include a reduced thickness of the face portion of the golf club head, such as at the back of the striking face and/or the golf club head, if desired. The junction between the face portion of the head body and the head body is reinforced with one or more reinforcement structures.

In some examples, one or more of the 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, frames 4100 and 4200 may be incorporated, such as in the face portion and at least a portion of the 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 the center of gravity, face height, face size, clubhead 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 sub-blocks. For example, frame 4100 may be subdivided into several sub-frames for arranging different portions of the head body of the golf club head. There may also be examples in which method 4000 may include additional or different blocks. For example, method 4000 may include another frame for providing or coupling a golf club to the club head body of frame 4100 . Furthermore, there may be instances in which 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 reaching blocks 4300, 4400, 4500, 4600, and/or if not required or block 4700, block 4800 may be skipped. Other variations for method 4000 may be implemented without departing from the scope of the present disclosure.

Although golf club heads with optimized properties and related methods have been described herein with reference to specific embodiments, various changes may be made without departing from the spirit or scope of this disclosure. For example, although the above examples may be described in conjunction with driver golf clubs, the apparatus, methods, and articles of manufacture described herein may be applicable to other types of golf clubs, such as fairway wood golf clubs, hybrid golf clubs, Iron-type golf clubs, pitch-type golf clubs, or putter-type golf clubs. Alternatively, the devices, methods, and articles of manufacture described herein may be adapted for use with other types of athletic equipment, such as hockey sticks, tennis rackets, fishing rods, ski poles, and the like.

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

The golf club heads with optimized properties and related methods discussed herein may be implemented in various implementations, and some of these previously discussed implementations do not necessarily represent a complete description of all possible implementations. 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 embodiments claimed in that particular claim. Accordingly, replacement of one or more of the claimed elements constitutes reconstruction rather than repair. Additionally, benefits, other advantages, and solutions to the problems to be solved have been described with reference to specific embodiments. However, no benefit, advantage, solution to a problem, and any element that may cause any benefit, advantage, or solution to occur or become more apparent should not be construed as critical, required, or necessary to all claims or any claim An essential feature or element unless the benefit, advantage, solution, or element is expressly recited in this claim.

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

Furthermore, if embodiments and/or limitations disclosed herein: (1) are not expressly claimed in a claim; and (2) are explicitly claimed in accordance with the doctrine of equivalents that are or may be expressly claimed in a claim and and/or equivalents of the limitations, then these implementations and limitations will not be contributed to the public in accordance with the principle of donation.

Claims (20)

1. A golf club head comprising: a striking face, having a striking face center point; and The high striking surface is tangent to the center point of the striking surface; A head body, the head body comprising: a weight structure positioned toward the head bottom and head rear of the head body; and The inside of the head, which is defined by: the front of the clubhead; the rear of the clubhead; club head heel; club head toe; the top of the clubhead; and the sole of the clubhead; and a hosel structure having a hole for receiving a golf club shaft, the hole having a hosel shaft; club head center of gravity; Clock grid, including: 12 o'clock ray; 3 o'clock rays; 4 o'clock rays; 5 o'clock ray; 8 o'clock ray; and 9 o'clock ray; When the golf club head is at address from a bottom view of the golf club head, the 12 o'clock ray is aligned with the hitting face center point and is aligned with the hitting face Orthogonal to the front intersection line between the ground plane; the clock grid is centered along the 12 o'clock ray at a midpoint between a front end of the head front and a rear end of the head rear; the 3 o'clock ray extends toward the heel of the clubhead; the 9 o'clock ray extends toward the toe; the edge 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, the club head horizontal axis, when the golf club head is at address on ground level, the shaft a head horizontal axis extending through the head center of gravity from the head heel to the head toe and parallel to the ground plane; a hosel moment of inertia, about the hosel axis; and a horizontal moment of inertia, about the horizontal axis of the club head; Wherein, the moment of inertia of the hosel is between 7000g·cm ² to 11000g·cm ² , and The horizontal moment of inertia is greater than or equal to 39% of the hosel moment of inertia. 2. The golf club head of claim 1, wherein: The horizontal moment of inertia is greater than or equal to 40% of the hosel moment of inertia. 3. The golf club head of claim 1, wherein: The horizontal moment of inertia is greater than or equal to 45% of the hosel moment of inertia. 4. The golf club head of claim 1, wherein: The horizontal moment of inertia is greater than or equal to 50% of the hosel moment of inertia. 5. The golf club head of claim 1, wherein: The horizontal moment of inertia is between 2800 g·cm ² and 4300 g·cm ² . 6. The golf club head of claim 1, further comprising: a head vertical axis extending through the head center of gravity from the head top to the head sole when the golf club head is at address on the ground plane , and is perpendicular to the ground plane; and a vertical moment of inertia, around the vertical axis of the head; Wherein, the vertical rotational inertia is greater than or equal to 59% of the hosel rotational inertia. 7. The golf club head of claim 6, wherein: The vertical moment of inertia is greater than or equal to 60% of the hosel moment of inertia. 8. The golf club head of claim 6, wherein: The vertical moment of inertia is greater than or equal to 65% of the hosel moment of inertia. 9. The golf club head of claim 6, wherein: The vertical moment of inertia is greater than or equal to 70% of the hosel moment of inertia. 10. The golf club head of claim 6, wherein: The vertical moment of inertia is between 4700 g·cm ² and 6000 g·cm ² . 11. The golf club head of claim 10, wherein: The hosel moment of inertia is between 7000 ^g cm and 11000 ^g cm; and The horizontal moment of inertia is between 2800 g·cm ² and 4300 g·cm ² . 12. The golf club head of claim 1, wherein: the head body includes a weight structure projecting at least partially from an outer contour of the head sole and positioned toward the head sole and the head rear; and The weight structure includes: A weight mass between 2 grams and 50 grams; and Weight volume between 1cc and 30cc. 13. The golf club head of claim 1, further comprising: a head vertical axis extending through the head center of gravity from the head top to the head sole when the golf club head is at address on the ground plane , and is perpendicular to the ground plane; and in: the head body includes a tee-type body; The golf club head has a hit face tangent to a center point of the hit face; the front plane of the golf club head extends through the striking face center point and is parallel to the hosel axis; a club head depth plane parallel to the club head horizontal axis and perpendicular to the high hitting face, extending through the hitting face center point; a CG height axis extending through the head center of gravity and intersecting the head depth plane perpendicularly at a first intersection; measuring the CG height of the club head along the CG height axis between the center of gravity of the club head and the first intersection; The CG depth of the club head, measured parallel to the ground plane and normal to the front plane, at the center of gravity of the club head, between: at the intersection between the front plane and the ground plane and a third intersection at the intersection between the vertical axis of the clubhead and the ground plane; The height of the club head CG is between 0mm and 5.08mm; The depth of the club head CG is between 25mm and 102mm; the golf club head has a head volume between 420cc and 470cc; and The golf club head has a head weight between 185 grams and 225 grams. 14. The golf club head of claim 1, wherein: the head body includes a weight structure positioned toward a head bottom and a head rear of the head body; and The weight distance between the center of gravity of the club head and the center of weight of the weight structure is between 25 mm and 102 mm. 15. The golf club head of claim 1, further comprising: A hosel coupling mechanism includes the hosel structure and a hub configured to adjustably couple a golf club shaft to the hosel structure. 16. The golf club head of claim 1, wherein: the head body includes a weight structure having a center of weight and positioned toward the head sole and the head rear; When the golf club head is at the address position, a club head vertical axis is orthogonal to the ground plane, extending between the club head's center of gravity and the ground plane; a center of weight elevation axis extending between the center of weight and the ground plane when the golf club head is at the address position, orthogonal to the ground plane; measuring the CG elevation of the club head along the vertical axis of the club head between the club head center of gravity and the ground plane; measuring the center of weight elevation along the center of weight elevation axis between the head center of gravity and the ground plane; and The elevation ratio defined by the ratio of the center of weight elevation to the CG elevation of the head is greater than 0.44. 17. The golf club head of claim 1, in: the head body includes a weight structure having a center of weight and disposed toward the head bottom and the head rear; the front plane of the golf club head extends through the striking face center point of the striking face and is parallel to the hosel axis; When the golf club head is at the address position, a club head vertical axis is orthogonal to the ground plane, extending between the club head's center of gravity and the ground plane; a center of weight elevation axis extending between the center of weight and the ground plane when the golf club head is at the address position, orthogonal to the ground plane; The clubhead CG depth of the clubhead's center of gravity is measured parallel to the ground plane and orthogonal to the front plane between: the intersection between the front plane and the ground plane and an intersection between the vertical axis of the head and the ground plane; The weight center depth of the weight center is measured parallel to the ground plane between: the intersection of the front plane and the ground plane; and the intersection of the weight center elevation axis and the ground plane ;as well as The depth ratio defined by the ratio of the center of weight depth to the head CG depth is less than 2.54. 18. The golf club head of claim 17, wherein: The first optimized characteristic defined as the absolute value of the head CG height is less than or equal to 5.08 mm; A second optimized characteristic defined as 76.2mm minus face height divided by said head CG depth less than or equal to 0.56; A third optimization characteristic, defined as the ratio of the head volume plus the absolute value of the head CG depth to the head CG height, is greater than or equal to 425. 19. A method for providing a golf club head, the method comprising: providing a striking face, the striking face having a striking face center point; and providing a high striking surface, the high striking surface being tangent to the center point of the striking surface; A head body is provided, the head body comprising: a weight structure positioned toward the head bottom and head rear of the head body; and The inside of the head, which is defined by: the front of the clubhead; the rear of the clubhead; club head heel; club head toe; the top of the clubhead; and the bottom of the head; as well as a hosel structure having a hole for receiving a golf club shaft, the hole having a hosel shaft; and coupling the golf club shaft to the hosel structure; Clock grid, including: 12 o'clock ray; 3 o'clock rays; 4 o'clock rays; 5 o'clock ray; 8 o'clock ray; and 9 o'clock ray; When the golf club head is at address from a bottom view of the golf club head, the 12 o'clock ray is aligned with the hitting face center point and is aligned with the hitting face Orthogonal to the front intersection line between the ground plane; the clock grid is centered along the 12 o'clock ray at a midpoint between a front end of the head front and a rear end of the head rear; the 3 o'clock ray extends toward the heel of the clubhead; the 9 o'clock ray extends toward the toe; the edge 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, in: When the golf club head is at address on ground level, a club head horizontal axis extends through the club head center of gravity of the golf club head from the club head heel to the club head toe, and parallel to said ground plane; When the golf club head is at address on the ground plane, a club head vertical axis extends from the head top to the club head sole through the club head's center of gravity and is perpendicular to the ground plane ; Providing the head body includes at least one of the following: establishing a horizontal moment of inertia about the horizontal axis of the 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 A vertical moment of inertia about the vertical axis of the head is established, wherein the vertical moment of inertia is greater than or equal to 59% of the hosel moment of inertia about the hosel axis. 20. The method of claim 19, wherein: providing the head body includes providing a weight structure positioned toward the head sole and the head rear; the weight structure at least partially protrudes from the outer contour of the head sole; and The weight structure includes: A weight mass between 2 grams and 50 grams; and Weight volume between 1cc and 30cc.