Adjustable weight club head

Abstract

To provide a golf club head having adjustable weighting systems with a plurality of discrete attachment locations capable of receiving one or more weights.SOLUTION: Golf club heads 12010 described herein adjust ball flight while maintaining a high moment of inertia and low and back center of gravity position.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] (CROSS-REFERENCE TO RELATED APPLICATIONS) This application claims the benefit of priority to U.S. Provisional Patent Application No. 62 / 545,770, filed August 15, 2017, and U.S. Provisional Patent Application No. 62 / 628,803, filed February 9, 2018, the entire disclosures of which are incorporated herein by reference.

[0002] FIELD OF THE DISCLOSURE This disclosure relates to golf club heads, and more particularly, to golf club heads having adjustable weighting systems. [Background technology]

[0003] Various characteristics of a golf club can affect the performance of the golf club, for example the center of gravity and moment of inertia of the golf club head are characteristics that can affect performance. Summary of the Invention [Problem to be solved by the invention]

[0004] The center of gravity and moment of inertia of a golf club head depend on the distribution of mass of the golf club head. In particular, the center of gravity and / or moment of inertia of the club head can be altered by distributing the mass of the club head closer to the sole of the club head, closer to the striking face of the club head, and / or closer to the toe and heel of the club head. Changing the moment of inertia of the club head can change the forgiveness of the golf club, the direction of the flight of the golf ball, and / or the flight angle of the golf ball.

[0005] Many of the weighting systems in existing golf club heads require large and complex internal structures that reduce the club head's moment of inertia and move the club head's center of gravity upward (toward the crown) and forward (toward the face). There is a need in the art for a club head that allows a user to adjust the club head's weighting and center of gravity location to affect ball flight (trajectory and / or spin) without adversely affecting the moment of inertia or center of gravity location. [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a front perspective view of a golf club head. [Diagram 2] FIG. 2 is a front view of the golf club head of FIG. 1 showing the y-axis. [Diagram 3] FIG. 2 is a top view of the golf club head of FIG. 1 showing x-axis and z-axis. [Figure 4] FIG. 2 is a side cross-sectional view of the golf club head of FIG. 1. [Diagram 5] FIG. 2 is a bottom view of the golf club head of FIG. 1. [Figure 6] FIG. 13 is a rear perspective view of another golf club head. [Figure 7] FIG. 7 is a bottom view of the golf club head of FIG. 6. [Figure 8] FIG. 7 is a bottom perspective view of the alternative embodiment of FIG. 6. [Figure 9] FIG. 13 is a rear view of another golf club head. [Figure 10] 10 is an enlarged perspective view of the rear of the golf club head of FIG. 9. [Figure 11] FIG. 13 is a bottom perspective view of another golf club head. [Figure 12] 12 is another bottom perspective view of the golf club head of FIG. 11. [Figure 13] 12 is a cross-sectional view of the opening and tensioner of the golf club head of FIG. 11. [Figure 14] FIG. 12 is a front perspective view of the tensioner of the golf club head of FIG. 11. [Figure 15]11 is a bottom view of another embodiment of a golf club head. [Figure 16] FIG. 16 is a bottom perspective view of the golf club head of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Various embodiments of golf club heads having adjustable weighting systems are described herein. The adjustable weighting systems include a plurality of discrete mounting locations that can receive one or more weights. Each weight can be coupled to any of the discrete mounting locations on the club head and can be moved between any of the mounting locations. Thus, the adjustable weighting systems allow a user to adjust the weighting and center of gravity location of the club head to alter the flight of the ball (i.e., the spin or trajectory of the ball).

[0008] In many embodiments, the adjustable weighting system described herein protrudes from the outer contour of the club head or is minimally recessed from the outer contour of the club head. Furthermore, in many embodiments, the adjustable weighting system described herein is located near the outer edge of the club head. This location of the adjustable weighting system maximizes the weighting on the outer edge and the low back weight location, thereby maximizing the club head's moment of inertia for off-center hit forgiveness, and allows the club head's center of gravity to be located low back, increasing launch angle and reducing backspin. Thus, the golf club head described herein allows the user to adjust the center of gravity of the club head to adjust the ball flight while maintaining optimal design and performance characteristics (high moment of inertia and low back center of gravity location).

[0009] Many of the embodiments described herein include adjustable weighting systems having one or more platforms, ledges, recesses, or channels without requiring significant internal structures that adversely affect the moment of inertia and head center of gravity location.

[0010] In the present specification and claims, terms such as "first", "second", "third", "fourth", etc., when present, are used to distinguish between similar elements and are not necessarily used to describe a particular sequence or chronological order. It is understood that the above terms used in this manner are interchangeable and that the embodiments described herein can be performed, for example, in a different sequence than that described or illustrated herein. Furthermore, the terms "comprise" and "have" and their synonyms are intended to include a non-exclusive inclusion, and a process, method, system, article, device or apparatus that includes recited elements is not necessarily limited to those elements, but may include other elements not expressly recited or that are inherent to such process, method, system, article, device or apparatus.

[0011] In the specification and claims, the terms "left," "right," "front," "rear," "top," "bottom," "upper," "lower," and the like, when used, are used for descriptive purposes and not necessarily to describe permanent relative positions. It should be understood that the terms, as so used, are interchangeable and that the embodiments of the devices, methods, and / or articles described herein may be practiced, for example, in other orientations than those illustrated or described herein.

[0012] The terms "couple," "coupled," "coupled," "coupled," and the like should be interpreted broadly and refer to the joining of two or more elements, mechanically or otherwise. The joining (whether mechanical or otherwise) may be for any duration, for example, permanently, semi-permanently, or only momentarily.

[0013] Other features and aspects will become apparent from consideration of the following detailed description and the accompanying drawings. Before describing the embodiments disclosed herein in detail, it should be understood that the application of the disclosure is not limited to the details or the embodiments and arrangements of components as described in the following description or illustrated in the drawings. The disclosure can support other embodiments and can be practiced or implemented in various ways. It should be understood that the description of a specific embodiment covers all modifications, equivalents, and alternatives that fall within the spirit and scope of the disclosure and is not intended to limit the disclosure. It should also be understood that the phraseology and terminology used herein are for the purpose of description and should not be regarded as limiting.

[0014] For ease of explanation and understanding, and for purposes of illustration only, the following detailed description illustrates golf club heads 100, 11010, 12010, 13010, and 6810 as woods. It should be understood, of course, that these woods are presented for purposes of illustrating one or more embodiments of an adjustable weighting system as disclosed herein. However, the embodiments of the adjustable weighting system disclosed herein may be used with any desired wood, iron, hybrid, or other golf club for which adjustable weighting is desired. For example, the club heads may include, but are not limited to, drivers, fairway woods, hybrids, 1 irons, 2 irons, 3 irons, 4 irons, 5 irons, 6 irons, 7 irons, 8 irons, 9 irons, pitching wedges, gap wedges, utility wedges, sand wedges, lob wedges, and / or putters.

[0015] 1-3 show a golf club head 100. The golf club head 100 includes a body 14 having a toe (or toe end) 18 located opposite a heel (or heel end) 22. The body 14 also includes a crown (or top) 26 located opposite a sole (or bottom) 30 and a back (or rear, rear end) 34 located opposite a club face (or face, striking face, striking plate) 38. The club head further includes a rim (or skirt, rear edge) 24 located at a junction or intersection between the crown 26 and the sole 30 that extends from near the heel 22 to near the toe 18. The club head 100 further includes an adjustable weighting system. At least a portion of the adjustable weighting system is located on the sole 30, the skirt 24, the heel 22, the toe 18, or any combination of these locations.

[0016] The golf club head 100 also includes a hosel 42 having a hosel axis 46 (see FIG. 2) that extends through the center of the hosel 42. The hosel 42 is configured to receive a golf club shaft (not shown) that supports a grip (not shown) that a golfer grasps when swinging the golf club.

[0017] In many embodiments, the golf club head 100 comprises a driver-type club head. In these embodiments, the loft angle of the club head 100 may be less than about 16°, less than about 15°, less than about 14°, less than about 13°, less than about 12°, less than about 11°, or less than about 10°. Additionally, in these embodiments, the volume of the club head 100 may be greater than about 400cc, greater than about 425cc, greater than about 450cc, greater than about 475cc, greater than about 500cc, greater than about 525cc, greater than about 550cc, greater than about 575cc, greater than about 600cc, greater than about 625cc, greater than about 650cc, greater than about 675cc, or greater than about 700cc. In some embodiments, the volume of the club head may be about 400 to 600 cc, about 500 to 600 cc, about 500 to 650 cc, about 550 to 700 cc, about 600 to 650 cc, about 600 to 700 cc, or about 600 to 800 cc.

[0018] In some embodiments, the club head may comprise a fairway wood type club head. In these embodiments, the loft angle of the club head 100 may be less than about 35°, less than about 34°, less than about 33°, less than about 32°, less than about 31°, or less than about 30°. Furthermore, in these embodiments, the loft angle of the club head 100 may be greater than about 12°, greater than about 13°, greater than about 14°, greater than about 15°, greater than about 16°, greater than about 17°, greater than about 18°, greater than about 19°, or greater than about 20°. Furthermore, in these embodiments, the volume of the club head 100 may be less than about 400cc, less than about 375cc, less than about 350cc, less than about 325cc, less than about 300cc, less than about 275cc, less than about 250cc, less than about 225cc, or less than about 200cc. For example, the club head volume can be about 300 to 400 cc, about 325 to 400 cc, about 350 to 400 cc, about 250 to 400 cc, about 250 to 350 cc, or about 275 to 375 cc.

[0019] In some embodiments, the club head may comprise a hybrid-type club head. In these embodiments, the loft angle of the club head 100 may be less than about 40°, less than about 39°, less than about 38°, less than about 37°, less than about 36°, less than about 35°, less than about 34°, less than about 33°, less than about 32°, less than about 31°, or less than about 30°. Furthermore, in these embodiments, the loft angle of the club head 100 may be greater than about 16°, greater than about 17°, greater than about 18°, greater than about 19°, greater than about 20°, greater than about 21°, greater than about 22°, greater than about 23°, greater than about 24°, or greater than about 25°. Further, in these embodiments, the volume of the club head 100 may be less than about 200 cc, less than about 175 cc, less than about 150 cc, less than about 125 cc, less than about 100 cc, or less than about 75 cc. For example, the volume of the club head may be about 100 to 150 cc, about 75 to 150 cc, about 100 to 125 cc, or about 75 to 125 cc. In other embodiments, the golf club head 100 may comprise any type of golf club head.

[0020] A number of grooves (or primary grooves) 40 (see FIG. 2) are disposed on the club face 38. The striking face 38 of the club head 100 defines a geometric center 140. In some embodiments, the geometric center 140 may be located at the geometric center point of the striking face's periphery and at the midpoint of the face height. In the same or other examples, the geometric center 140 may be located at the center of a design impact zone, which may be defined by the area of ​​the grooves on the striking face. As an alternative approach, the geometric center of the striking face may be located according to the definition of a golf governing organization, such as the United States Golf Association (USGA). For example, the geometric center 140 of the striking face 38 may be determined in accordance with Section 6.1 of the USGA Procedure for Measuring the Flexibility of a Golf Club Head (USGA-TPX3004, Rev. 1.0.0, May 1, 2008) (http: / / www.usga.org / equipment / testing / protocols / Procedure-For-Measuring-The-Flexibility-Of-A-Golf-Club-Head / ) ("Flexibility Procedure").

[0021] The club head 100 defines a loft plane 10102 that is tangent to the geometric center 140 of the striking face 38. The club head 100 further defines a coordinate system having an origin located at the geometric center 140 of the striking face 38. The coordinate system has an x-axis 10106, a y-axis 10104, and a z-axis 10108. The x-axis 10106 extends through the geometric center 140 of the striking face 38 in a direction from the heel 22 to the toe 18 of the club head 100. The y-axis 10104 extends through the geometric center 140 of the striking face 38 in a direction from the crown 26 to the sole 30 of the club head 100 and is perpendicular to the x-axis 10106. The z-axis 10108 extends from the face 38 toward the back end 34 of the club head 100 through the geometric center 140 of the striking face 38 and is perpendicular to the x-axis 10106 and y-axis 10104 .

[0022] The coordinate system defines an xy plane 10124 extending between the x-axis 10106 and the y-axis 10104, an xz plane 10126 extending between the x-axis 10106 and the z-axis 10108, and a yz plane 10128 extending between the y-axis 10104 and the z-axis 10108, where the xy plane 10124, xz plane 10126, and yz plane 10128 are each perpendicular to one another and intersect at an origin of the coordinate system located at the geometric center 140 of the striking face 38. The xy plane 10124 extends parallel to the hosel axis 46 and is disposed at an angle corresponding to the loft angle of the club head 100 from the loft plane 10102. Additionally, when viewed perpendicular to the xy plane 10124, the x-axis 10106 is disposed at an angle of 60 degrees relative to the hosel axis 46.

[0023] In the above or other embodiments, the club head 100 may be viewed in a front view (FIG. 2) when the striking face 38 is viewed perpendicular to the xy plane 10124. Additionally, in the above or other embodiments, the club head 100 may be viewed in a side or cross-sectional side view (FIG. 4) when the heel 22 is viewed perpendicular to the yz plane 10128.

[0024] 2 and 3, the golf club head 100 further includes a center of gravity (or CG) 50 (see FIGS. 3, 4, and 5) that defines the origin of a coordinate system that includes an x-axis 54, a y-axis 58, and a z-axis 62. The y-axis 58 (see FIGS. 2 and 4) extends through the center of gravity 50 of the club head 100 from the crown (or top) 26 to the sole (or bottom) 30, is parallel to the hosel axis 46 when viewed in a side view, and is disposed at an angle of 30 degrees from the hosel axis 46 when viewed in a front view (FIG. 2). The x-axis 54 (see FIGS. 3 and 5) extends through the center of gravity 50 of the club head from the toe (or toe end) 18 to the heel (or heel end) 22, is perpendicular to the y-axis 58 when viewed in a front view, and is parallel to the xy plane 10124. The z-axis 62 (see FIGS. 3-5) extends through the center of gravity 50 of the club head 100 from the club face 38 to the back end 34 and is perpendicular to the x-axis 54 and y-axis 58. The x-axis 54 extends through the head CG 50 from the toe (or toe end) 18 to the heel (or heel end) 22 and is parallel to the x-axis 10106. The y-axis 58 extends through the head CG 50 from the crown (or top) 26 to the sole (or bottom) 30 and is parallel to the y-axis 10104. The z-axis 62 extends through the head CG 50 from the club face 38 to the back end 34 and is parallel to the z-axis 10108.

[0025] 4, the club head 100 further includes a head depth plane 10120 and a head depth axis 10122. The head depth plane 10120 extends perpendicular to the loft plane 10102 through the geometric center 140 of the striking face 38 in a direction from the heel 22 to the toe 18 of the club head 100, and the head depth axis 10122 extends perpendicular to the loft plane 10102 through the geometric center 140 of the striking face 38. In many embodiments, the head CG 50 may be located at a head CG depth 10130 from the xy plane 10124 as measured in a direction perpendicular to the xy plane 10124. In some embodiments, the head CG 50 may be located at a head CG depth 10130 from the loft plane 10102 as measured in a direction perpendicular to the loft plane 10102. Head CG 50 is further disposed at a head CG height 10132 from the head depth plane 10120, measured in a direction perpendicular to the head depth plane 10120. Further, the head CG height 10132 is measured as an offset distance of the head CG 50 from the head depth plane 10120 to the crown 26 or sole 30 in a direction perpendicular to the head depth plane 10120.

[0026] As additional guidance in describing the invention herein, x-axis 54 and z-axis 62 are positioned to correspond with the numbers on the analog clock of Figure 3. Z-axis 62 extends between 12 o'clock ("12" through club face 38) and 6 o'clock ("6" through back 34), and x-axis 54 extends between 3 o'clock ("3" through toe end 18) and 9 o'clock ("9" through heel end 22).

[0027] Various parameters of a golf club head are important to achieve desired performance characteristics such as the club head moment of inertia, the location of the club head center of gravity, and the adjustability of the club head center of gravity. A high club head moment of inertia makes the club head more forgiving of off-center hits. A club head center of gravity located low and rearward (i.e., toward the sole and rear of the club head) beneficially increases the moment of inertia, reduces backspin, and increases the launch angle of the golf ball at impact. The adjustability of the club head center of gravity allows the end user to tailor the trajectory of the club head as desired. Each of these parameters is important in the design of a golf club to achieve desired or optimal performance characteristics. However, there are design challenges in including all of the above parameters of a golf club head because many of the existing center of gravity adjustment mechanisms (1) reduce the club head moment of inertia, and / or (2) move the club head center of gravity to the top and forward of the club head due to internal weight structures and / or large weight structures and / or non-optimal placement of weight structures.

[0028] The golf club head embodiments described below include adjustable weighting systems that significantly reduce the club head's moment of inertia and maintain or prevent low-back club head center of gravity location. For example, many of the following embodiments describe low-profile adjustable weighting systems and / or optimally positioned adjustable weighting systems to maintain a high club head moment of inertia and a low-back club head center of gravity location as with club heads lacking adjustable weighting systems while providing the user with ball flight and / or trajectory adjustability. Maintaining a high club head moment of inertia about the club head CG increases forgiveness on off-center hits, and maintaining a high club head moment of inertia about the hosel axis increases rotational stability during the swing. Additionally, maintaining a low-back club head center of gravity advantageously increases the club head's moment of inertia about the head CG, reducing backspin.

[0029] The club head 100 has a moment of inertia I about the x-axis. xx (i.e., crown-sole moment of inertia), and moment of inertia I about the y-axis yy (i.e., heel-toe moment of inertia), and moment of inertia I about the hosel axis 46 hh Equipped with.

[0030] The moment of inertia I about the x-axis of a club head including the adjustable weighting system described herein xx is 3100g cm 2 Larger, 3200g cm 2 Larger, 3300g cm 2 Larger, 3400g cm 2 Larger, 3500g cm 2 Larger, 3600g cm 2 Larger, 3700g·cm 2 Larger, 3800g cm 2 Larger, 3900g·cm 2 Larger, 4000g cm 2Larger, 4100g cm 2 Larger, 4200g cm 2 Larger, 4300g cm 2 Larger, 4400g cm 2 Larger or 4500g cm 2 In some embodiments, the moment of inertia about the x-axis I of a club head equipped with an adjustable weighting system as described herein may be greater than 1. xx 3100 to 4000 g cm 2 , 3100 to 3800 g cm 2 , 3200 to 4000 g cm 2 , 3200 to 4000 g cm 2 , 3300 to 4000 g cm 2 , 3400 to 4000 g cm 2 , or 3500 to 4000 g cm 2 It is.

[0031] Additionally, the moment of inertia I about the y-axis of a club head including the adjustable weighting system described herein yy is 4700g cm 2 Larger, 4800g cm 2 Larger, 4900g cm 2 Larger, 5000g cm 2 Larger, 5100g cm 2 Larger, 5200g cm 2 Larger, 5300g cm 2 Larger, 5400g cm 2 Larger, 5500g cm 2 Larger, 5600g cm 2 Larger, 5700g·cm 2 Larger, 5800g cm 2 Larger, 5900g·cm 2 Larger or 6000g cm 2 In some embodiments, the moment of inertia about the y-axis I of a club head equipped with an adjustable weighting system as described herein may be greater than 0.05. yy 4800 to 6000 g cm2 , 4900 to 6000 g cm 2 , 5000 to 6000 g cm 2 , 5100 to 6000 g cm 2 , 5200 to 6000 g cm 2 , 5300 to 6000 g cm 2 , or 5400 to 6000 g cm 2 It is.

[0032] Furthermore, the moment of inertia I about the hosel axis of a club head equipped with the adjustable weighting system described herein is hh is 7500g cm 2 Larger, 8000g cm 2 Larger, 8250g·cm 2 Larger, 8500g cm 2 Larger, 8750g·cm 2 Larger, 9000g cm 2 Larger, 9050g cm 2 Greater than or equal to 10000g cm 2 In some embodiments, the moment of inertia about the hosel axis I of a club head equipped with an adjustable weighting system as described herein may be greater than 100%. hh 7500 to 10000g cm 2 , 8000 to 10000 g cm 2 , 8500 to 10000 g cm 2 , or 9000 to 10000 g cm 2 It is.

[0033] With reference to Equation 1 below, many embodiments of club heads with adjustable weighting systems have a combined moment of inertia (MOI) about the head CG, defined as the sum of the moment of inertia about the x-axis and the moment of inertia about the y-axis. CG ) is provided.

[0034]

number

[0035] MOI (combined moment of inertia around the head's center of gravity) CG is 7600g cm 2 Larger, 7700g·cm 2 Larger, 7800g cm 2 Larger, 7900g·cm 2 Larger, 8000g cm 2 Larger, 8100g cm 2 Larger, 8200g cm 2 Larger, 8300g cm 2 Larger, 8400g·cm 2 Larger, 8500g cm 2 Larger, 8600g cm 2 Larger, 8700g cm 2 Larger, 8800g cm 2 Larger, 8900g cm 2 Larger, 9000g cm 2 Larger, 9100g cm 2 Larger, 9200g cm 2 Larger or 9300g·cm 2 For example, the combined moment of inertia (MOI) around the center of gravity of the club head CG 7700 to 9500 g cm 2 , 7800 to 9500 g cm 2 , 7900 to 9500 g cm 2 , 8000 to 9500 g cm 2 , 8100 to 9500 g cm 2 , 8200 to 9500 g cm 2 , or 8300 to 9500 g cm 2 It may be.

[0036] With reference to Equation 2 below, many embodiments of club heads with adjustable weighting systems have a combined moment of inertia (MOI) about the head CG and the hosel, which is defined as the sum of the moment of inertia about the x-axis, the moment of inertia about the y-axis, and the moment of inertia about the hosel axis. CG-H ) is provided.

[0037]

number

[0038] Combined moment of inertia (MOI) around the head CG and hosel CG-H is 14800g cm 2 Larger, 14900g·cm 2 Larger, 15000g cm 2 Larger, 15100g cm 2 Larger, 15200g cm 2 Larger, 15300g cm 2 Larger, 15400g·cm 2 Larger, 15500g cm 2 Larger, 15600g cm 2 Larger, 15700g·cm 2 Larger, 15800g·cm 2 Larger, 15900g·cm 2 Larger, 16000g cm 2 Larger, 16200g cm 2 Larger, 16400g cm 2 Larger, 16600g cm 2 Larger, 16800g cm 2 Larger, 17000g cm 2 Larger, 17200g cm 2 Larger, 17400g·cm 2 Larger, 17600g·cm 2 Larger, 17800g·cm 2 Larger, 18000g cm 2 Larger, 18400g cm 2 Larger, 18800g cm 2 Larger, 19000g cm 2 Larger, 19200g cm 2 Larger or 19400g·cm 2 For example, the combined moment of inertia (MOI) around the head CG and the hosel CG-H15000 to 19500 g cm 2 , 15000 to 19000 g cm 2 , 15000 to 18000 g cm 2 , 16000 to 19500 g cm 2 , 16000 to 19000 g cm 2 , or 16,000 to 18,000 g cm 2 In these embodiments, for a club head with an adjustable weighting system having a volume of 425 to 450 cubic centimeters (cc), the combined moment of inertia (MOI) around the head CG and the hosel may be CG-H is 15000g cm 2 For club heads with adjustable weighting systems that may be larger, having a volume of 450 to 500 cubic centimeters (cc), the combined moment of inertia (MOI) around the head CG and the hosel CG-H is 17000g cm 2 Bigger is better.

[0039] The head CG depth 10130 of a club head with an adjustable weighting system described herein may be greater than 1.6 inches, greater than 1.65 inches, greater than 1.7 inches, greater than 1.75 inches, greater than 1.8 inches, greater than 1.85 inches, greater than 1.9 inches, greater than 1.95 inches, or greater than 2.0 inches. For example, the head CG depth 10130 of a club head with an adjustable weighting system may be 1.61 to 2.0 inches, 1.65 to 2.0 inches, 1.7 to 2.0 inches, 1.8 to 2.0 inches, 1.61 to 3.0 inches, 1.65 to 3.0 inches, 1.7 to 3.0 inches, 1.8 to 3.0 inches, 1.9 to 3.0 inches, or 2.0 to 3.0 inches.

[0040] Additionally, a club head with an adjustable weighting system as described herein may have a head CG height 10132 that is located below the head depth plane 10120 (i.e., located between the head depth plane 10120 and the sole 30 of the club head). Additionally, the head CG height 10132 of a club head with an adjustable weighting system as described herein may be located within 0.10 inches, within 0.09 inches, within 0.08 inches, within 0.07 inches, within 0.06 inches, within 0.05 inches, or within 0.04 inches of the head depth plane 10120 toward the crown 26 or the sole 30 of the club head.

[0041] In many embodiments, the adjustable weighting system includes one or more weights that are repositionable at multiple discrete portions or mounting locations on the club head to adjust the position of the head CG. Adjusting the position of the head CG using the adjustable weighting systems described herein can affect the ball trajectory and / or spin characteristics of the club head at impact while maintaining a high moment of inertia of the club head.

[0042] In many embodiments, the adjustable weighting system may include two or more discrete mounting locations for receiving one or more weights. In many embodiments, the adjustable weighting system includes two, three, four, or five discrete mounting locations. For example, in an embodiment of an adjustable weighting system having two discrete mounting locations, the mounting locations may include a first mounting location disposed toward the back end 34 and toe 18 of the club head and a second mounting location disposed toward the back end 34 and heel 22. In these embodiments, the distance between the first mounting location and the second mounting location may be greater than 0.8 inches, greater than 0.9 inches, greater than 1.0 inches, greater than 1.1 inches, greater than 1.2 inches, or greater than 1.3 inches. For example, the distance between the first mounting location and the second mounting location may be 0.8 to 1.3 inches, 0.9 to 1.3 inches, 1.0 to 1.3 inches, or 1.1 to 1.3 inches.

[0043] As a further example, in embodiments of an adjustable weighting system having three discrete mounting locations (e.g., FIG. 5), these mounting locations may include a first mounting location A located toward the rear end 34 and toe 18, a second mounting location C located toward the rear end 34 and heel 22, and a third mounting location B. In these embodiments, the third mounting location B may be centrally located and toward the rear end 34 of the club head and may be generally aligned with or adjacent to the head depth axis 10122 and / or located between the first and second mounting locations A, C. In these embodiments, the distance between adjacent mounting locations (e.g., the distance between the first mounting location A and the third mounting location B, or the distance between the second mounting location C and the third mounting location B) may be greater than 0.5 inches, greater than 0.6 inches, greater than 0.7 inches, greater than 0.8 inches, greater than 0.9 inches, or greater than 1.0 inches. For example, the distance between adjacent mounting locations (e.g., the distance between the first mounting location A and the third mounting location B, or the distance between the second mounting location C and the third mounting location B) can be 0.5 to 1.0 inches, 0.6 to 1.0 inches, 0.7 to 1.0 inches, or 0.8 to 1.0 inches.

[0044] In other embodiments, the adjustable weighting system may include any number of discrete mounting locations greater than one, such as, for example, two, three, four, five, six, seven, eight, or more. In embodiments where the adjustable weighting system includes four discrete mounting locations, the distance between adjacent mounting locations may be greater than 0.4 inches, greater than 0.5 inches, greater than 0.6 inches, greater than 0.7 inches, greater than 0.8 inches, or greater than 0.9 inches. For example, in embodiments where the adjustable weighting system includes four discrete mounting locations, the distance between adjacent mounting locations may be 0.4 to 0.9 inches, 0.5 to 0.9 inches, 0.6 to 0.9 inches, or 0.7 to 0.9 inches. In embodiments where the adjustable weighting system includes five discrete mounting locations, the distance between adjacent mounting locations may be greater than 0.3 inches, greater than 0.4 inches, greater than 0.5 inches, greater than 0.6 inches, greater than 0.7 inches, or greater than 0.8 inches. For example, in embodiments including four discrete mounting locations, the distance between adjacent mounting locations may be 0.3 to 0.8 inches, 0.4 to 0.8 inches, 0.5 to 0.8 inches, or 0.6 to 0.8 inches.

[0045] The multiple discrete mounting locations of a club head with an adjustable weighting system described herein can include a variety of features including protrusions, openings, recesses or ports, notches, tabs or cutout areas, ribs or grooves, pegs, hooks, magnets, programmable magnets, or any other suitable mounting means that can accept fasteners. In many embodiments having openings, recesses or ports that can accept fasteners, the fasteners can have the same material as the body or a material with a lighter density than the body, such that the fasteners do not contribute to the adjustable weighting characteristics of the club head. Additionally, in some embodiments, the openings, recesses or ports can be threaded to accept threaded fasteners. In many embodiments, the adjustable weighting system does not have multiple and / or deep ports or recesses that require significant internal structure required to secure one or more weights within the ports or recesses.

[0046] The adjustable weighting system further comprises one or more weights positionable at a plurality of discrete mounting locations. The one or more weights may have a height 10152 measured in a crown-to-sole direction parallel to the y-axis 58 when the weight is coupled to the one or more mounting locations, a width 10154 measured in a heel-to-toe direction parallel to the x-axis 54 when the weight is coupled to the one or more mounting locations, and a depth 10156 measured in a fore-aft direction parallel to the z-axis 62 when the weight is coupled to the one or more mounting locations. In many embodiments, the height 10152 may be less than 0.5 inches, less than 0.4 inches, less than 0.3 inches, less than 0.25 inches, less than 0.2 inches, less than 0.18 inches, less than 0.16 inches, less than 0.14 inches, less than 0.12 inches, or less than 0.10 inches. In many embodiments, the width 10154 may be less than 1.3 inches, less than 1.2 inches, less than 1.1 inches, less than 1.0 inches, less than 0.9 inches, less than 0.8 inches, less than 0.7 inches, less than 0.6 inches, less than 0.5 inches, or less than 0.4 inches. In many embodiments, the depth 10156 may be less than 1.0 inches, less than 0.9 inches, less than 0.8 inches, less than 0.7 inches, less than 0.6 inches, less than 0.5 inches, less than 0.4 inches, less than 0.3 inches, less than 0.2 inches, or less than 0.1 inches. In many embodiments, the weight or weights may have a surface area that abuts against the body of the club head when coupled to any of the mounting locations. In many embodiments, the surface area of ​​the weight that abuts against the club head is less than 0.75 inches. 2 Less than 0.7 inch 2 Less than 0.65 inch 2 Less than 0.6 inch 2 Less than 0.55 inch 2 Less than 0.5 inch 2 Less than 0.45 inch 2 Less than 0.4 inch 2 Less than 0.35 inch 2 Less than 0.3 inch 2 Less than or equal to 0.25 inches 2 It may be less than.

[0047] In many embodiments, the adjustable weighting system includes a first weight W that is positionable at a plurality of discrete mounting locations on the club head. In some embodiments, the adjustable weighting system may further include additional weights, such as a second weight, a third weight, a fourth weight, and a fifth weight, that are positionable at a plurality of discrete mounting locations on the club head. In these embodiments, each weight of the plurality of weights may be positioned at a different discrete mounting location on the club head. Furthermore, in these embodiments, each weight of the plurality of weights may be removed and replaced or repositioned at a different discrete mounting location on the club head. Although the embodiments of the adjustable weight system described herein include up to five weights, other embodiments may include an adjustable weighting system having any number of weights.

[0048] In many embodiments, the first weight is heavier than the remaining weights (e.g., the second weight, the third weight, the fourth weight, and / or the fifth weight). The first weight may have a mass greater than 10 grams, greater than 12 grams, greater than 14 grams, greater than 16 grams, greater than 18 grams, greater than 20 grams, greater than 22 grams, greater than 24 grams, greater than 26 grams, greater than 28 grams, or greater than 30 grams. For example, the first weight may have a mass between 6 and 50 grams, between 10 and 50 grams, between 15 and 50 grams, between 20 and 50 grams, between 15 and 40 grams, between 20 and 40 grams, between 25 and 35 grams, between 10 and 25 grams, between 15 and 25 grams, between 10 and 20 grams, or between 15 and 20 grams. The remaining weights (e.g., the second weight, the third weight, the fourth weight, and / or the fifth weight) may have a mass of less than 20 grams, less than 18 grams, less than 16 grams, less than 14 grams, less than 12 grams, less than 10 grams, less than 8 grams, less than 6 grams, less than 4 grams, or less than 2 grams. For example, the remaining weights may have a mass of 0.10 to 15 grams, 0.25 to 10 grams, 0.5 to 7 grams, or 1 to 10 grams.

[0049] The first weight may be located at any of the discrete mounting locations. In embodiments having an adjustable weighting system including two discrete mounting locations, the first weight may be located at a first mounting location located near the toe 18 or a second mounting location located near the heel 22. In these embodiments, moving the first weight from the first mounting location to the second mounting location moves the head CG toward the heel 22, and moving the first weight from the second mounting location to the first mounting location moves the head CG toward the toe 18. In these embodiments, the remaining mounting locations may be devoid of weights or may have additional weights (e.g., a second weight).

[0050] In embodiments having an adjustable weighting system with three discrete mounting locations, the first weight W may be located at the centrally located third mounting location B to produce a neutral head CG position. The first weight may be moved from the third mounting location B to the first mounting location A located toward the toe 18 to move the head CG 50 a distance toward the toe 18. The first weight W may be moved from the third mounting location B to the second mounting location C located toward the heel 22 to move the head CG 50 a distance toward the heel 22. In these embodiments, the remaining locations may be devoid of weights or may have additional weights (e.g., a second weight and / or a third weight).

[0051] By moving the first weight W from an attachment location closest to the toe 18 to an attachment location closest to the heel 22, the head CG 50 can be moved a distance of at least 0.10 inches, at least 0.15 inches, at least 0.20 inches, at least 0.25 inches, or at least 0.30 inches in a direction extending parallel to the x-axis 54. For example, in many embodiments, by moving the first weight W from an attachment location closest to the toe 18 to an attachment location closest to the heel 22, the head CG 50 can be moved a distance of 0.10 to 0.30 inches, 0.15 to 0.30 inches, 0.20 to 0.30 inches, 0.15 to 0.25 inches, or 0.20 to 0.25 inches.

[0052] In these or other embodiments, moving the head CG 50 toward the toe 18 can produce a fade or correct a hook. Conversely, moving the head CG 50 toward the heel 22 can produce a draw or correct a slice. In the adjustable weighting system embodiment described below, moving the head CG 50 by 0.10 inches to 0.30 inches in a direction extending parallel to the x-axis 54 can result in a change in shot curvature of 4.6 yards to 13.9 yards.

[0053] Other embodiments may include one or more discrete mounting locations disposed toward the striking face 38 of the club head 100. In these embodiments, moving one or more weights from a mounting location near the striking face 38 to a mounting location near the rear end 34 of the club head 100 reduces the club head's moment of inertia MOL about the head CG. CG By increasing the weight mounting location near the rear end 34 of the club head 100, the dynamic loft or launch angle of the golf ball can be increased. Conversely, by moving one or more weights from a mounting location near the rear end 34 to a mounting location near the striking face 38 of the club head 100, the dynamic loft or launch angle of the golf ball can be decreased.

[0054] Club head embodiments having adjustable weighting systems as described herein maximize head CG depth 10130 and club head moment of inertia (or minimize the reduction in head CG depth 10130 and club head moment of inertia typically associated with introducing adjustability as compared to non-adjustable club heads). In many embodiments, maximization of head CG depth and club head moment of inertia is achieved with a first adjustable weight having a relatively light mass, thereby allowing for design efficiencies to maintain club head performance characteristics (e.g., forgiveness, low backspin, high launch) as well as allowing the user to adjust ball spin and / or trajectory.

[0055] Referring to Equation 3 below, a club head having an adjustable weighting system has a first weight W m The club head has a depth-to-mass ratio of head CG depth 10130 to the club head mass. In many embodiments, the club head depth-to-mass ratio may be greater than 0.060 in / gram, greater than 0.070 in / gram, greater than 0.080 in / gram, greater than 0.090 in / gram, greater than 0.100 in / gram, greater than 0.110 in / gram, greater than 0.120 in / gram, or greater than 0.130 in / gram. In some embodiments, the depth-to-mass ratio may be 0.070 to 0.13 in / gram, 0.080 to 0.13 in / gram, 0.090 to 0.13 in / gram, 0.070 to 0.11 in / gram, 0.080 to 0.11 in / gram, or 0.090 to 0.11 in / gram. In these embodiments, the mass of the first weight may be less than 25 grams, less than 24 grams, less than 23 grams, less than 22 grams, less than 20 grams, less than 19 grams, less than 18 grams, less than 17 grams, less than 16 grams, or less than 15 grams. In some embodiments, the mass of the first weight may be between 10 and 20 grams, between 12 and 20 grams, between 14 and 20 grams, between 16 and 20 grams, between 10 and 18 grams, between 12 and 18 grams, or between 14 and 18 grams.

[0056]

number

[0057] Referring to Equation 4 below, a club head having an adjustable weighting system has a first weight W m The combined moment of inertia (MOI) around the head CG relative to the mass of the club. CG In many embodiments, the first inertial mass ratio is defined as 400 cm 2 Larger, 410cm 2 Larger, 420cm 2 Larger, 430cm2 Larger, 440cm 2 Larger, 450cm 2 Larger, 460cm 2 Larger, 470cm 2 Larger, 480cm 2 Larger, 490cm 2 Larger, 500cm 2 Larger, 510cm 2 Larger, 520cm 2 Larger, 530cm 2 Larger, 540cm 2 Larger than 550cm 2 In some embodiments, the first inertial mass ratio is between 400 and 550 cm 2 , 410 to 550 cm 2 , 420 to 550 cm 2 , 430 to 550 cm 2 , 440 to 550 cm 2 , 450 to 550 cm 2 , 400 to 500 cm 2 , 410 to 500 cm 2 , 420 to 500 cm 2 , 430 to 500 cm 2 , 440 to 500 cm 2 , or 450 to 500 cm 2 In these embodiments, the mass of the first weight may be less than 25 grams, less than 24 grams, less than 23 grams, less than 22 grams, less than 20 grams, less than 19 grams, less than 18 grams, less than 17 grams, less than 16 grams, or less than 15 grams. In some embodiments, the mass of the first weight may be 10 to 20 grams, 12 to 20 grams, 14 to 20 grams, 16 to 20 grams, 10 to 18 grams, 12 to 18 grams, or 14 to 18 grams.

[0058]

number

[0059] The embodiments of the club head having an adjustable weighting system described herein maximize the total head CG movement achievable by adjusting one or more weights at multiple discrete mounting locations. In many embodiments, maximization of the total head CG movement is achieved with a first adjustable weight having a relatively light mass, thereby allowing the design to maintain club head performance characteristics (e.g., forgiveness, low backspin, high launch) as well as allowing the user to adjust ball spin and / or trajectory.

[0060] With reference to relationship 5 below, a club head having an adjustable weighting system has a head CG mass ratio, defined as the total or maximum head CG movement relative to the mass of the first weight. In many embodiments, the head CG mass ratio may be greater than 0.008 in / gram, greater than 0.009 in / gram, greater than 0.010 in / gram, greater than 0.011 in / gram, greater than 0.012 in / gram, greater than 0.013 in / gram, greater than 0.014 in / gram, or greater than 0.015 in / gram. In some embodiments, the head CG mass ratio may be 0.008 to 0.015 in / gram, 0.009 to 0.015 in / gram, 0.010 to 0.015 in / gram, 0.008 to 0.013 in / gram, 0.009 to 0.013 in / gram, or 0.010 to 0.013 in / gram. In these embodiments, the mass of the first weight can be less than 25 grams, less than 24 grams, less than 23 grams, less than 22 grams, less than 20 grams, less than 19 grams, less than 18 grams, less than 17 grams, less than 16 grams, or less than 15 grams. In some embodiments, the mass of the first weight can be between 10 and 20 grams, between 12 and 20 grams, between 14 and 20 grams, between 16 and 20 grams, between 10 and 18 grams, between 12 and 18 grams, or between 14 and 18 grams.

[0061]

number

[0062] The one or more weights of the adjustable weighting system include a weight CG 10134. In many embodiments, the weight CG is located near the rear perimeter (or skirt) 10136 of the club head when viewed in a top or bottom view (FIG. 5) and is located a maximum distance 10138 from the geometric center 140 of the striking face 38. By locating the weight CG 10134 near the rear perimeter 10136 of the club head 100 or away from the striking face 38, the perimeter weight and the moment of inertia of the club head can be increased, which can make the club head more forgiving of off-center hits compared to locating an adjustable weight closer to the striking face. Additionally, by locating the weight CG 10134 near the rear perimeter 10136 or away from the striking face 38, the head CG can be positioned lower back, which can increase the moment of inertia of the club head and reduce backspin compared to locating an adjustable weight closer to the striking face.

[0063] In these embodiments, a weight CG 10134 of one or more weights is located a distance 10142 from a rear perimeter 10136 of the club head 100 when the weight is located at one or more of the multiple discrete mounting locations on the club head 100. The distance 10142 can be measured as a projected distance from the weight CG to the perimeter 10136 when the club head is viewed in a bottom view perpendicular to the xz plane 10126 when the weight is located at one or more of the multiple discrete mounting locations on the club head 100. Additionally, the distance 10142 can be measured in a direction parallel to the xz plane 10126 when the weight is located at one or more of the multiple discrete mounting locations on the club head 100. For example, weight CG 10134 of the one or more weights may be located within 0.7 inches, 0.65 inches, 0.6 inches, 0.55 inches, 0.5 inches, 0.45 inches, 0.4 inches, 0.35 inches, 0.3 inches, 0.25 inches, or 0.2 inches of the rear perimeter 10136 of the club head 100. As a further example, weight CG 10134 of the one or more weights may be located between 0.10 to 0.50 inches, 0.25 to 0.5 inches, 0.10 to 0.25 inches, 0.10 to 0.35 inches, or 0.10 to 0.45 inches of the rear perimeter 10136 of the club head 100.

[0064] Further, in these embodiments, the weight CG 10134 of the one or more weights is positioned a distance 10138 from the geometric center 140 of the striking face 38 of the club head 100, with the weights located at one or more of a plurality of discrete mounting locations on the club head 100. For example, the weight CG 10134 of the one or more weights may be positioned a distance 10138 greater than 2.0 inches, greater than 2.25 inches, greater than 2.5 inches, greater than 2.75 inches, greater than 3.0 inches, greater than 3.25 inches, greater than 3.5 inches, or greater than 3.75 inches from the geometric center of the striking face. As a further example, the weights CG 10134 of the one or more weights may be located a distance 10138 of 2.0 to 3.5 inches, 2.5 to 3.5 inches, 2.0 to 3.0 inches, 2.5 to 3.0 inches, 2.5 to 4.0 inches, 3.0 to 3.75 inches, 3.0 to 4.0 inches, 3.2 to 4.0 inches, or 3.5 to 4.0 inches from the geometric center 140 of the striking face 38. Locating the weights CG 10134 away from the geometric center 140 of the striking face 38 can increase the perimeter weighting and moment of inertia of the club head, which can make the club head more forgiving of off-center hits compared to locating adjustable weights closer to the striking face. Additionally, by positioning the weight CG10134 away from the geometric center 140 of the striking face 38, the head CG position can be moved lower and further back, thereby increasing the club head's moment of inertia and reducing backspin compared to placing an adjustable weight closer to the striking face.

[0065] In many embodiments, the weight CG 10134 protrudes from the outer contour (or outer surface) 10146 of the sole 30, is positioned flush with the outer contour 10146 of the sole 30, and / or is positioned with minimal inset relative to the outer contour 10146 of the sole 30. By positioning the weight CG 10134 with minimal inset relative to, flush with, or outside of the outer contour 10146 of the sole 30, less structural support material may be required to accommodate the weight or weights, thereby maintaining a low profile adjustable weighting system. Thus, by locating the weight CG 10134 flush with, or external to the exterior contour 10146 of the sole 30 so as to be minimally recessed relative to the exterior contour 10146, the perimeter weight and moment of inertia of the club head can be increased, thereby making the club head more forgiving of off-center hits compared to having an adjustable weight internal or embedded in the club head. Additionally, by locating the weight CG 10134 flush with, or external to the exterior contour 10146 of the sole 30 so as to be minimally recessed relative to the exterior contour 10146, the head CG can be positioned lower back, thereby increasing the moment of inertia of the club head and reducing backspin compared to having an adjustable weight internal or embedded in the club head.

[0066] In these embodiments, the weight CG 10134 of the one or more weights is disposed a distance 10148 from the outer contour 10146 of the sole 30 with the weight disposed at one or more of a plurality of discrete mounting locations on the club head 100, the distance 10148 being measured in a direction parallel to the y-axis 58. For example, the weight CG 10134 of the one or more weights may protrude from the outer contour 10146 of the sole by up to 0.10 inches, up to 0.15 inches, up to 0.20 inches, up to 0.25 inches, or up to 0.30 inches. In some embodiments, the weight CG 10134 of the one or more weights protrudes from the outer contour 10146 of the sole 30 by 0.10 to 0.25 inches, 0.15 to 0.25 inches, or 0.15 to 0.30 inches. As a further example, the weight CG 10134 may be recessed relative to the outer contour 10146 of the sole 30 by a distance 10148 of less than 0.15 inches, less than 0.14 inches, less than 0.13 inches, less than 0.125 inches, less than 0.12 inches, less than 0.11 inches, less than 0.10 inches, less than 0.09 inches, less than 0.08 inches, or less than 0.07 inches. In some embodiments, the weight CG 10134 of one or more weights is recessed relative to the outer contour 10146 of the sole 30 by a distance 10148 between 0.05 to 0.15 inches, 0.05 to 0.125 inches, 0.05 to 0.15 inches, 0.10 to 0.15 inches, 0.10 to 0.125 inches, or 0.10 to 0.15 inches.

[0067] 6 and 7 show a club head 11010 similar to the club head 100 described above. The club head 11010 has a club head body 11014 and includes an adjustable weighting system 11066 disposed on the sole 11030 that is adjustable by an end user to change the center of gravity, and / or moment of inertia, and / or heel / toe bias of the club head 11010 to achieve desired performance characteristics (e.g., forgiveness, spin, trajectory) under various circumstances. The club head 11010 is similar in many respects to the club head 100, and similar or identical numbers refer to similar or identical elements. The adjustable weighting system 11066 is a low profile system and does not significantly shift or change the MOI of the club head 11010 compared to a club head without the adjustable weighting system 11066. Additionally, the low profile adjustable weighting system 11066 ensures that movement of the CG of the club head 11010 occurs primarily in the direction from the heel end 11022 to the toe end 11018 so as to keep the overall CG of the club head 11010 in a low and rearward position. The center of gravity location and MOI of the club head 11010 may be similar or identical to the center of gravity location and MOI of the club head 100 described above.

[0068] 6 and 7, the adjustable weighting system 11066 may include a recess 11080. The recess 11080 includes a concave surface 11081 configured to include a plurality of discrete mounting locations. The plurality of discrete mounting locations may include a variety of features including protrusions, openings, recesses or ports, notches or tabs or cutout areas capable of receiving fasteners, ribs or grooves, pegs, hooks, magnets, programmable magnets, or any other suitable mounting means. In the illustrated embodiment, the adjustable weighting system 11066 includes a concave surface 11081 that includes three discrete mounting locations 11070A, 11070B, and 11070C. The three discrete mounting locations include features 11070A, 11070B, and 11070C. The features 11070A, 11070B, and 11070C may include any of the features described above. The mounting locations and corresponding features 11070A, 11070B, and 11070C are configured to receive one or more weights 11082.

[0069] 6 and 7, the recess 11080 defines a groove, channel, and / or recessed track that extends along the sole (or bottom) 11030 of the club head 11010, adjacent the rear edge 11072 or rear periphery 10136, and extends in a generally arcuate shape from the toe (or toe end) 11018 to the heel (or heel end) 11020. The recess 11080 generally follows the contour of the rear edge 11072, although the recess 11080 may be slightly offset from the rear edge 11072 or rear periphery 10136 between the heel end 11022 and the toe end 11018. The recess 11080 includes a concave surface 11081 that is offset from the sole 11030 of the club head 11010 by a first wall 11083. A portion of the concave surface 11081 may be further offset from the sole 11030 by a second wall 11084, which faces the first wall 11083 and is adjacent the rear edge 11072 or rear periphery 10136. Generally, the concave surface 11081 extends generally parallel to the sole 11030 of the club head 11010, while the first wall 11083 and the second wall 11084 extend generally perpendicular to the concave surface 11081 and / or the sole 11030. In other embodiments, the first wall 11083 and the second wall 11084 may extend at a non-perpendicular angle between the concave surface 11081 and the sole 11030.

[0070] The recess 11080 includes a depth measured as the distance from the recess 11081 to the sole 11030 in a direction parallel to the recess 11081. In the illustrated embodiment, the recess 11080 has a varying depth, being deeper in some areas than other areas (e.g., may have a depth that varies continuously or intermittently). For example, in some embodiments, the recess 11080 may have a depth that is deeper, shallower, and / or constant along its length from the toe end 11018 to the heel end 11022. Thus, when the weight 11082 is coupled to the club head 11010 in one area of ​​the recess 11080, the weight 11082 may be hidden by the wall 11083 and be flush with the sole 11030. When the weight 11082 is coupled to the club head 11010 in another area of ​​the recess 11080, a portion of the weight 11082 may protrude outwardly from the wall 11083. 6-8, the recess 11080 includes a first region 11077 located at the toe end 11018 of the club head 11010, a second region 11076 located at the heel end 11022 of the club head 11010, and a third region 11078 located between the heel end 11022 and the toe end 11022 along or near the rear end 11034. With reference to FIG. 6, the depth of the recess 11080 in the first region 11077 (and similarly in the second region 11076) is less than the depth in the third region. Thus, the depth of the recess 11080 increases from the first and second regions 11077, 11076 toward the third region 11078, with the third region 11078 having a constant depth greater than the first and second regions 11077, 11076. In this exemplary embodiment, the weight 11082, when coupled to the third region 11078, may be hidden by the first wall 11083 (e.g., as seen from a view along the y-axis 58 in FIG. 2 ) and may be at least partially exposed or at least partially protruding from the contour of the sole 11030 in the first and second regions 11077, 11076.In other embodiments, the first region 11077, the second region 11076, and the third region 11078 may have a constant depth, such that when the weight 11082 is coupled to any of the first, second, and / or third regions 11077, 11076, 11078, the weight 11082 is hidden by the wall 11083. In other embodiments, the recess 11080 includes a different number and location of regions than those illustrated. For example, in some embodiments, the recess 11080 may include two or more regions into which the weight 11082 is hidden when coupled to the recess. For example, the recess 11080 may include one region, two regions, three regions, four regions, five regions, six regions, seven regions, or eight regions.

[0071] In many embodiments, the recess 11080 has a shallow depth to ensure that the adjustable weighting system 11066 is low profile. For example, in some embodiments, the recess 11080 has a maximum depth of 0.25 inches. In other embodiments, the recess 11080 may have a maximum depth of 1.5 inches, 1.25 inches, 1.0 inches, 0.9 inches, 0.8 inches, 0.7 inches, 0.6 inches, 0.5 inches, 0.4 inches, 0.3 inches, 0.2 inches, or 0.1 inches. In other embodiments, the depth of the recess 11080 may vary within the range of 0.05 to 0.25 inches, 0.1 to 0.4 inches, 0.1 to 0.6 inches, 0.1 to 0.8 inches, 0.2 to 0.4 inches, 0.2 to 0.6 inches, 0.2 to 0.8 inches, 0.3 to 0.7 inches, 0.3 to 0.9 inches, 0.4 to 0.8 inches, 0.4 to 1.2 inches, 0.5 to 1.0 inches, 0.5 to 1.5 inches, or 1.0 to 1.5 inches. Additionally, the recess 11080 includes a width measured as the distance between the first wall 11083 and the trailing edge 11072 or the second wall 11084. In the illustrated embodiment, the recess 11080 includes a range of widths. In some embodiments, the width of the first region 11077 increases from the toe end 11018 toward the central or third region 11078, the width of the second region 11076 increases from the heel end 11022 toward the central and / or third region 11078, and the width of the third region 11078 is a constant width that is less than the average of the widths of the first and / or second regions 11077, 11076. In other embodiments shown in Figures 6-8, the width of the recess 11080 may increase from the central or third region 11078 toward the first region 11077 and the second region 11076. In other embodiments, the recess 11080 may have a width that increases, decreases, and / or is constant. In many embodiments, the width may be less than 2.0 inches. For example, in some embodiments, the width may be less than 2.0 inches, 1.75 inches, 1.5 inches, 1.25 inches, 1.0 inches, 0.9 inches, 0.8 inches, 0.7 inches, 0.6 inches, 0.5 inches, 0.4 inches, 0.3 inches, or 0.2 inches.In other embodiments, the width may vary between 0.1 to 0.5 inches, 0.3 to 0.7 inches, 0.5 to 0.9 inches, 0.7 to 1.1 inches, 0.9 to 1.3 inches, 1.1 to 1.5 inches, 1.3 to 1.7 inches, or 1.5 to 2.0 inches.

[0072] 6 and 7, the recess 11080 may include one or more features 11070 that define one or more discrete attachment locations for securing the weight 11082 to the club head 11010. Unlike other adjustable weighting systems, a club head 11010 with one or more discrete attachment locations allows the weight to be coupled at any location, an infinite number of locations, or an unlimited number of locations on the club head. Referring again to FIGS. 6 and 7, in the illustrated embodiment, the recess 11080 may include three features or attachment locations 11070A, B, C. The features 11070A, B, C are shown as openings configured to receive a screw fastener 11085. The screw fastener 11085 may be constructed from a material having a density equal to or less than the density of the club head 11010. In other embodiments, the features 11070A, B, C can be protrusions, openings, recesses, ports, notches, tabs, cut-out areas, ribs, grooves, pegs, hooks, magnets, programmable magnets, or any other suitable attachment means capable of receiving a fastener. In other embodiments, the recess 11080 can include 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 features 11070.

[0073] As shown, the features 11070A, B, C are disposed within the recess 11080 along a concave surface 11081 such that one or more weights 11082 may be releasably or removably coupled to the club head 11010 along the recess 11080. More specifically, the first feature 11070A is disposed along a first region 11077 of the recess 11080 near the toe end 11018, the second feature 11070C is disposed along a second region 11076 of the recess near the heel end 11022, and the third feature 11070B is disposed along a third region 11078 of the recess 11080 between the toe end 11018 and the heel end 11022. In some embodiments, one or more features 11070A, B, C can be disposed on a first wall 11083, a second wall 11084, and / or a concave surface 11081 of the recess 11080.

[0074] Continuing with reference to FIGS. 6-8 , the weight 11082 may have a generally trapezoidal shape. In other embodiments, the weight 11082 may have a circular, oval, triangular, trapezoidal, polygonal, or any other suitable shape configured to fit within the recess 11080. In the illustrated embodiment, the adjustable weighting system 11066 includes one weight 11082 removably coupleable to the features 11070A, B, C. In other embodiments, the adjustable weighting system 11066 may include any number of weights 11082 corresponding to the number of features 11070A, B, C. In other embodiments, the adjustable weighting system 11066 may include more or less weights 11082 than the number of features 11070A, B, C. For example, the adjustable weighting system 11066 may include 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 weights 11082.

[0075] In the illustrated embodiment, the weight 11082 includes an aperture extending completely through the weight 11082 that is sized and configured to receive a threaded fastener or screw fastener 11085. The screw fastener 11085 can be threaded through the weight 11082 and into a corresponding feature 11070A, B, C, thereby securing the weight 11082 to the recess 11080. In some embodiments, the weight 11082 can include a recess or spigot for receiving an upper portion of the screw fastener 11085, such that the screw fastener 11085 can be flush with an outer portion of the weight 11082. In other embodiments, the weight 11082 can be configured to couple to the features 11070A, B, C by a friction fit, a snap fit mechanism, a set screw, or any other suitable structure.

[0076] In embodiments in which the adjustable weighting system 11066 comprises two or more weights 11082, each of the weights 11082 may have the same shape and size. In other embodiments, the weights 11082 may have different shapes and sizes, such that the weights 11082 have different masses. Additionally, in some embodiments, the weights 11082 may comprise different materials, such that the masses may differ. For example, one weight 11082 may comprise a high density material, such as tungsten, and the remaining weights 11082 may comprise a low density material, such as polyurethane or another plastic. In other embodiments, the weights 11082 may comprise the same or different materials and have different sizes or volumes, such that the masses may differ. For example, one weight 11082 may have a larger volume than the remaining weights 11082. In some embodiments, each of the weights 11082 may differ in volume, such that the masses may differ. In some embodiments, the weights 11082 may differ from one another in both volume and material. In some embodiments, one of the structures labeled 11082 is not a weight, but rather a lightweight (e.g., lightweight plastic) cover that snaps into or otherwise couples to one of the features 11070A, B, C.

[0077] In some embodiments, the weights 11082 may vary between 0.1 and 50 g. For example, in embodiments having multiple weights 11082, one or more of the weights 11082 may vary between 0 and 10 g, between 10 and 20 g, between 20 and 30 g, between 30 and 40 g, between 40 and 50 g. In some embodiments, the first weight 11082 may vary between 0 and 10 g, the second weight 11082 may vary between 10 and 20 g, and the third weight 11082 may vary between 20 and 30 g. In other embodiments, the first weight 11082 may vary between 1 and 5 g, and the second and third weights 11082 may vary between 5 and 30 g. In other embodiments, the first weight 11082 may vary between 40 and 50 g, the second weight 11082 may vary between 30 and 40 g, and the third weight may vary between 20 and 30 g. In other embodiments, the first and second weights 11082 may vary between 1 and 10 g, and the third weight 11082 may vary between 5 and 25 g. In some embodiments, the first weight 11082 has a mass of 8.5 grams, and the second and third weights 11082 each have a mass of 1.5 grams. In other embodiments, the first weight 11082 has a mass of 12 grams, and the second and third weights 11082 each have a mass of 1.5 grams. In other embodiments, the first weight 11082 has a mass of 8.5 grams and the second and third weights 11082 each have a mass of 0.75 grams. In other embodiments, the first weight may have a mass of 10 to 20 g, 10 to 25 g, or 15 to 25 g, and the remaining weights (e.g., the second, third, fourth, fifth weights) may have masses of 0.25 to 2.5 g, 0.25 to 5 g, 0.25 to 7.5 g, or 0.25 to 10 g.In other embodiments, the first weight may have a mass of 10g, 11g, 12g, 13g, 14g, 15g, 16g, 17g, 18g, 19g, 20g, 21g, 22g, 23g, 24g, 25g, 26g, 27g, 28g, 29g, or 30g, and the remaining weights may have masses of 1g, 2g, 3g, 4g, 5g, 6g, 7g, 8g, 9g, or 10g. In other embodiments, any number of the weights may have the same mass, or any number of the weights may have varying masses between 0.1 and 50g.

[0078] Continuing to refer to FIG. 6, in the illustrated embodiment, one of the features 11070A, B, C may receive a weight 11082, and the remaining features 11070A, B, C may be empty and uncovered, may not have a weight, or may be covered with another material or structure. In other embodiments, as shown in FIG. 7, each of the features 11070A, B, C may receive a weight 11082. In some embodiments, one or more of the features 11070A, B, C may receive a weight 11082. In some embodiments, one or more of the features 11070A, B, C do not extend beyond the contour of the club head 11010, such that the features 11070A, B, C and / or the recess 11080 do not interfere with or impede the golfer's swing, even if the features 11070A, B, C remain empty and uncovered.

[0079] Weights 11082 may be strategically placed in features 11070A, B, C to achieve a desired center of gravity location and / or moment of inertia and / or heel / toe bias for the club head 11010. For example, in some embodiments, a heavier weight 11082 is placed in feature 11070B, located between the toe end 11018 and the heel end 11022, and a lighter weight is placed in features 11070A and 11070C at the toe end 11018 and heel end 11022. This placement of weights 11082 keeps the center of gravity centered while moving it toward the rear end 11034 of the club head 11010. In some embodiments, a heavier weight 11082 may be located in feature 11070C at the heel end 11022 and a lighter weight 11082 may be located in features 6270A,B near the toe end 11018 and centrally located between the toe end 6318 and the heel end 6322. This placement of weights 11082 may move the center of gravity toward the heel end 11022 of the club head 11010. In some embodiments, a heavier weight 11082 may be located in feature 11070A at the toe (or toe end) 11018 and a lighter weight 11082 may be located in feature 6270C at the heel end 11022 and feature 11070B located between the toe end 11018 and the heel end 11022. This placement of weights 11082 may move the center of gravity toward the toe end 11018 of the club head 11010. In many embodiments, one or more of the features 11070A, B, C may be of equal size and shape, such that one weight may be used interchangeably for each of the features 11070A, B, C. In some embodiments, one or more of the features 11070A, B, C may have different sizes and shapes, such that each feature 11070A, B, C may have its own corresponding weight 11082 or set of weights 11082.Additionally, adjusting the position of weights 11082 in features 11070 A, B, C can also affect the spin imparted to the ball after impact.

[0080] 8, in some embodiments, the club head 11010 may further include a contoured recess 11031 disposed in the sole 11030. The contoured recess 11031 may include a greater height (i.e., less depth) than the recess 11080 having a plurality of discrete attachment locations. The contoured recess 11031 extends from the recess 11080 toward the striking face 38 of the golf club head 11010.

[0081] The adjustable weighting system 11066 of the golf club head 11010 maintains or prevents a significant reduction in the club head's moment of inertia and a low, rearward club head center of gravity location compared to a club head without an adjustable weighting system. The adjustable weighting system 11066 of the golf club head 11010 maintains a high club head moment of inertia and a low, rearward club head CG location due to the low profile of the weighting system and the peripheral location of the weight(s). The club head 11010 with the adjustable weighting system 11066 may have similar or identical parameters and measurements as the club head 100 described above.

[0082] 9 and 10 show a club head 12010 similar to the club head 100 described above. The club head 12010 has a club head body 12014 and includes an adjustable weighting system 12066 that is adjusted by an end user to change the center of gravity, and / or moment of inertia, and / or heel / toe bias of the club head 12010 to achieve desired performance characteristics (e.g., forgiveness, spin, trajectory) under various circumstances. The club head 12010 may be similar in many respects to the club heads 100 and 11010, with similar or identical numbers referring to similar or identical elements. The adjustable weighting system 12066 is a low profile system and therefore does not significantly shift or change the MOI of the club head 12010 compared to a club head without the adjustable weighting system 12066. Additionally, the low profile adjustable weighting system 12066 ensures that CG movement of the club head 12010 occurs primarily in the direction from the heel end 12022 to the toe end 12018, maintaining a low and rearward CG for the entire club head 12010. The center of gravity location and MOI of the club head 12010 may be similar or identical to the center of gravity locations and MOI of the club heads 100 and 11010 described above.

[0083] 9 and 10, the adjustable weighting system 12066 may comprise a channel or recess 12013 disposed in the sole 12030 or rear edge 12072 of the club head 12010. The recess 12013 may comprise a plurality of discrete attachment locations. The plurality of discrete attachment locations may comprise a variety of features including protrusions, openings, recesses or ports, notches or tabs or cutout areas capable of receiving fasteners, ribs or grooves, pegs, hooks, magnets, programmable magnets, or any other suitable attachment means. In the illustrated embodiment, the adjustable weighting system 12066 includes three discrete attachment locations. The three discrete attachment locations comprise features 12070A, 12070B, and 12070C. The features 12070A, 12070B, and 12070C may comprise any of the features described above. The mounting locations and corresponding features 12070A, 12070B, 12070C are configured to receive one or more weights 12082.

[0084] In some embodiments, the recess 12080 defines a groove, channel, and / or recessed track that extends in and along the skirt (or trailing edge) 12072 or rear periphery 10136 and extends in a generally arcuate shape from the toe (or toe end) 12018 to the heel (or heel end) 12020. The channel 12013 is defined by a first surface 12073 (FIG. 9), a second surface 12074 (FIGS. 9 and 10) disposed opposite the first surface 12073, and a third surface 12075 (FIGS. 9 and 10) extending perpendicularly between the first surface 12073 and the second surface 12074. In many embodiments, the first surface 12073 comprises an upper wall of the channel 12013, the second surface 12074 comprises a lower wall of the channel 12013, and the third surface 12075 comprises a base or bottom wall of the channel 12013. In some embodiments, the first surface 12073 extends parallel to the second surface 12074 and perpendicular to the third surface 12075. Further, in some embodiments, the first and second surfaces 12073, 12074 of the recess 12080 extend in a direction generally perpendicular to the loft plane of the club head 12010, and the third surface 12075 of the recess 12080 extends in a direction generally parallel to the loft plane of the club head 12010. The channel 12013 is further defined in part by an additional end surface 12079 that directly intersects the first surface 12073, the second surface 12074, and the third surface 12075. The end surface 12079 may provide additional support and / or may provide an abutment area or edge against which the weight 12082 may abut. In some embodiments, the end surface 12079 may cause the weight 12082 to appear flush with the outer surface 12090 of the club head. The flush surface may improve airflow characteristics during a swing and improve the aerodynamics of the club head 12010.

[0085] The channel 12013 includes a depth measured from the third surface 12075 to the sole 12030 in a direction perpendicular to the third surface 12075. In the illustrated embodiment, the channel 12013 may have a varying depth, being deeper in some regions than other regions (e.g., may have a depth that varies continuously or intermittently). In other embodiments, the depth of the channel 12013 may have a depth that increases, decreases, and / or is constant along a length from the toe end 12018 to the heel end 12022. Thus, when the weight 12082 is coupled to the club head 12010 in a region of the channel 12013, the weight 12082 may fit flush in the channel 12013 and / or be hidden by the first and / or second surfaces 12073, 12074. When the weight 12082 is coupled to the club head 12010 at another area of ​​the channel 12013, a portion of the weight 12082 may protrude beyond the first and / or second surfaces 12073, 12074. In other embodiments, the weight 12082 may be recessed within the channel 12013, may be flush within the channel 12013, or may protrude beyond the channel 12013 at any location.

[0086] 9, the channel 12013 may include a first region 12077 at the toe end 12018 of the club head 12010, a second region 12076 at the heel end 12022 of the club head 12010, and a third region 12078 disposed along the rear (or back end) 12034 between the heel (or heel end) 12022 and the toe (or toe end) 12018. In some embodiments, the first region 12077, the second region 12076, and the third region 12078 may be parallel to the contour of the rear edge 12072. In other embodiments, any of the first, second, and / or third regions 12077, 12076, and / or 12078 may be parallel and / or angled relative to the contour of the rear edge 12072. 9, the first region 12077 and the second region 12076 may slope upward relative to the trailing edge 12072 toward the third region 12078, which is parallel to the contour of the trailing edge 12072. In this embodiment, the transition between the first region 12077, the third region 12078, and the second region 12076 is smooth and does not have sharp edges.

[0087] In some embodiments, the first region 12077 (as well as the second region 12076) of the channel 12013 may have a shallow depth such that when the weight 12082 is coupled to the first region 12077, a portion of the weight 12082 protrudes beyond the first surface 12073 and the second surface 12074. However, due to the end surface 12079, the weight 12082 may appear flush with the remainder of the sole 12030, the toe end 12018, or the heel end 12022 of the club head 12010. In contrast, the third region 12078 may have a greater depth such that when the weight 12082 is coupled to the third region 12078, the weight 12082 is hidden by the first surface 12073 and the second surface 12074 (e.g., when viewed along the y-axis 58 in FIG. 2 ). In other embodiments, the depths of the first, second, and third regions 12077, 12076, and 12078 may be the same depth. Additionally, the transition regions between the first and third regions 12077, 12078 and the second and third regions 12076, 12078 may be less than the depths of the first, second, and third regions 12077, 12076, 12078. In other embodiments, the channel 12013 may include a different number and location of regions than those illustrated. For example, in some embodiments, the channel 12013 may include two or more regions that obscure the weight 12082 when coupled thereto. In some embodiments, the channel 12013 may include one or more regions at the heel end 12022 and / or the toe end 12018 that obscure the weight 12082 when coupled thereto. In some embodiments, the channel 12013 includes one or more areas at the rear (or rear end) 12034 where a portion of the weight 12082 protrudes beyond the first surface 12073 and / or the second surface 12074 when the weight 12082 is coupled thereto.

[0088] In many embodiments, the channel 12013 has a shallow depth to ensure that the adjustable weighting system 12066 is low profile. For example, in some embodiments, the channel 12013 has a maximum depth of 0.25 inches. In other embodiments, the channel 12013 may have a maximum depth of 1.5 inches, 1.25 inches, 1.0 inches, 0.9 inches, 0.8 inches, 0.7 inches, 0.6 inches, 0.5 inches, 0.4 inches, 0.3 inches, 0.2 inches, or 0.1 inches. In other embodiments, the depth of the channel 12013 may vary within a range of 0.05 to 0.25 inches, 0.1 to 0.4 inches, 0.1 to 0.6 inches, 0.1 to 0.8 inches, 0.2 to 0.4 inches, 0.2 to 0.6 inches, 0.2 to 0.8 inches, 0.3 to 0.7 inches, 0.3 to 0.9 inches, 0.4 to 0.8 inches, 0.4 to 1.2 inches, 0.5 to 1.0 inches, 0.5 to 1.5 inches, or 1.0 to 1.5 inches. Additionally, the channel 12013 includes a width measured as the distance between the first surface 12073 and the second surface 12074. In the illustrated embodiment, the channel 12013 includes a constant width. In other embodiments, the channel 12013 may have a width that increases, decreases, and / or is constant. In many embodiments, the width may be less than 2.0 inches. For example, in some embodiments, the width may be less than 2.0 inches, less than 1.75 inches, less than 1.5 inches, less than 1.25 inches, less than 1.0 inches, less than 0.9 inches, less than 0.8 inches, less than 0.7 inches, less than 0.6 inches, less than 0.5 inches, less than 0.4 inches, less than 0.3 inches, or less than 0.2 inches. In other embodiments, the width may vary between 0.1 to 2.0 inches, 0.1 to 0.5 inches, 0.3 to 0.7 inches, 0.5 to 0.9 inches, 0.7 to 1.1 inches, 0.9 to 1.3 inches, 1.1 to 1.5 inches, 1.3 to 1.7 inches, or 1.5 to 2.0 inches.

[0089] 9 and 10, the channel 12013 may include one or more features 12070A, B, C that define one or more discrete attachment locations for securing the weight 12082 to the club head 12010. Unlike other adjustable weighting systems, a club head 12010 with one or more discrete attachment locations may couple a weight at any location on the club head, or at an infinite number of locations, or at an unlimited number of locations. In the illustrated embodiment, the adjustable weighting system 12066 may include three features 12070A, B, C. In some embodiments, the features 12070A, B, C may be one of a protrusion, an opening, a recess, a port, a notch, a tab, a cut-out area, a rib, a groove, a peg, a hook, a magnet, a programmable magnet, or any other suitable attachment means capable of receiving a fastener. In other embodiments, the channel 12013 may include one, two, three, four, five, six, seven, eight, nine, or ten features 12070. As shown in FIG. 9, the third surface 12075 of the channel 12013 may include three discrete attachment location features 12070A, B, C. The features 12070A, B, C may be any of the features described above. In other embodiments, the features 12070A, B, C may be located on the first, second, and / or third surfaces 12073, 12074, 12075 of the channel 12013.

[0090] For purposes of this example, in the illustrated embodiment, features 12070A, B, C may be apertures configured to receive screws. The screws may be comprised of a material having a density equal to or less than the density of the club head 12010. As shown, features 12070A, B, C are disposed within channel 12013 along third surface 12075 such that one or more weights 12082 may be releasably or removably coupled to club head 12010 along channel 12013. More specifically, the first feature 12070A is disposed along a first region 12077 of the channel 12013 near the toe end 12018, the second feature 12070C is disposed along a second region 12076 of the channel 12013 near the heel end 12022, and the third feature 12070B is disposed along a third region 12078 of the channel 12013 between the toe end 12018 and the heel end 12022. In some embodiments, one or more features 12070A, B, C may be disposed on the first wall 12083, the second wall 12084, and / or the concave surface 12081 of the recess 11080.

[0091] 9 and 10, the weights 12082 may have a generally elongated oval shape that corresponds to the shape of the channel 12013. In other embodiments, the weights 12082 may have a circular, oval, rectangular, triangular, trapezoidal, polygonal, or any other suitable shape configured to fit within the channel 12013. In the embodiment shown in FIG. 9, the adjustable weighting system 12066 includes three weights 12082 that may be removably coupled to the features 12070A, B, C in any configuration. In this embodiment, the number of weights 12082 corresponds to the number of features 12070A, B, C. In the embodiment shown in FIG. 10, the adjustable weighting system 12066 includes one weight 12082 that may be removably coupled to any of the features 12070A, B, C. In other embodiments, the adjustable weighting system 12066 may include a greater or lesser number of weights 12082 than the number of features 12070A, B, C. For example, the adjustable weighting system 12066 may include 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 weights 12082.

[0092] In the illustrated embodiment, the weight 12082 includes an aperture that extends completely through the weight 12082, the aperture being sized and configured to receive a threaded fastener or screw (not shown). The screw can be threaded through the weight 12082 and into the corresponding feature 12070A, B, C to secure the weight 12082 to the channel 12013. In some embodiments, the weight 12082 can include a recess or spigot to receive an upper portion of the screw, so that the screw can be flush with the outer portion of the weight 12082. In other embodiments, the weight 12082 can include a blind aperture that does not extend completely through the weight 12082. In other embodiments, the weight 12082 can have no aperture. In other embodiments, the weight 12082 can be configured to couple to the feature 12070A, B, C by a friction fit, a snap fit mechanism, a set screw, or any other suitable structure.

[0093] Referring again to FIG. 9 , in the illustrated embodiment, each of the features 12070A, B, C can receive a weight 12082. In other embodiments, one or more of the features 12070A, B, C can receive a weight 12082 while the remaining features 12070A, B, C are empty and uncovered, have no weights, or are covered with another material or structure. In some embodiments, one or more of the features 12070A, B, C receive a weight 12082. In some embodiments, one or more of the features 12070A, B, C do not extend beyond the contour of the club head 12010, so that the features 12070A, B, C and / or the channel 12013 do not interfere with or impede the golfer's swing, even if the features 12070A, B, C remain empty and uncovered.

[0094] In the illustrated embodiment, each of the weights 12082 is shown having the same shape and size. In other embodiments, the weights 12082 may differ in shape and size, resulting in the weights 12082 having different masses. Additionally, in some embodiments, the weights 12082 may comprise different materials, resulting in different masses. For example, one weight 12082 may comprise a high density material, such as tungsten, and the remaining weights 12082 may comprise a lower density material, such as polyurethane or another plastic. In other embodiments, the weights 12082 may comprise the same or different materials and may have different sizes or volumes, resulting in different masses. For example, one weight 12082 may comprise a larger volume than the remaining weights 12082. In some embodiments, each of the weights 12082 may differ in volume, resulting in different masses. In some embodiments, the weights 12082 may differ from one another in both volume and material. In some embodiments, one of the structures labeled 12082 is not a weight, but rather a lightweight (e.g., lightweight plastic) cover that snaps into or otherwise couples with one or more of the features 12070A, B, C.

[0095] In some embodiments, the weights 12082 may vary between 0.1 and 50 g. For example, in embodiments having multiple weights 12082, one or more of the weights 12082 may vary between 0 and 10 g, between 10 and 20 g, between 20 and 30 g, between 30 and 40 g, between 40 and 50 g. In some embodiments, the first weight 12082 may vary between 0 and 10 g, the second weight 12082 may vary between 10 and 20 g, the third weight 12082 may vary between 20 and 30 g, the fourth weight 12082 may vary between 30 and 40 g, and the fifth weight 12082 may vary between 40 and 50 g. In other embodiments, the first weight 12082 may vary between 1 and 5 g, and the second and third weights 12082 may vary between 5 and 30 g. In other embodiments, the first and second weights 12082 may vary between 1 and 10 g, and the third and fourth weights 12082 may vary between 5 and 25 g. In some embodiments, the first weight 12082 has a mass of 8.5 grams, and the second and third weights 12082 each have a mass of 1.5 grams. In other embodiments, the first weight 12082 has a mass of 12 grams, and the second and third weights 12082 each have a mass of 1.5 grams. In other embodiments, the first weight 12082 has a mass of 8.5 grams, and the second and third weights 12082 each have a mass of 0.75 grams. In other embodiments, the first weight may have a mass of 10 to 20 g, 10 to 25 g, or 15 to 25 g, and the remaining weights (e.g., the second, third, fourth, fifth weight) may have a mass of 0.25 to 2.5 g, 0.25 to 5 g, 0.25 to 7.5 g, or 0.25 to 10 g. In other embodiments, the first weight may have a mass of 10 g, 11 g, 12 g, 13 g, 14 g, 15 g, 16 g, 17 g, 18 g, 19 g, 20 g, 21 g, 22 g, 23 g, 24 g, 25 g, 26 g, 27 g, 28 g, 29 g, or 30 g, and the remaining weights may have a mass of 1 g, 2 g, 3 g, 4 g, 5 g, 6 g, 7 g, 8 g, 9 g, or 10 g.In other embodiments, any number of weights may have the same mass or may have varying masses between 0.1 and 50 g.

[0096] Weights 12082 may be strategically placed in features 12070A, B, C to achieve a desired center of gravity location and / or moment of inertia and / or heel / toe bias of the club head 12010. For example, in some embodiments, a heavier weight 12082 is placed in feature 12070B located between the toe (or toe end) 12018 and the heel (or heel end) 12022, while a lighter weight is placed in features 12070A, C near the toe (or toe end) 12018 and the heel (or heel end) 12022, or no weight is placed in features 12070A, C. This placement of weights 12082 can keep the center of gravity centered while moving the center of gravity toward the rear end 12034 of the club head 12010. In some embodiments, a heavier weight 12082 is located in feature 12070C near the heel (or heel end) 12022, while a lighter weight 12082 is located in feature 12070A near the toe (or toe end) 12018 and in feature 12070B located between the toe (or toe end) 12018 and the heel (or heel end) 12022, or no weight is located in features 12070A, B. This placement of weights 12082 can move the center of gravity toward the heel end 12022 of the club head 12010. In some embodiments, a heavier weight 12082 is located in feature 12070A near the toe (or toe end) 12018, while a lighter weight 12082 is located in feature 12070C near the heel (or heel end) 12022 and in feature 12070B located between the toe (or toe end) 12018 and the heel (or heel end) 12022, or no weight is located in features 12070C, B. This placement of weights 12082 can move the center of gravity toward the toe end 12018 of the club head 12010. In many embodiments, one or more of features 12070A, B, C may have the same size and shape, and weights may be used interchangeably in each of features 12070A, B, C.In some embodiments, one or more of the features 12070A, B, C may have different sizes and shapes, such that each of the features 12070A, B, C has a weight 12082 or set of weights 12082 corresponding to it.

[0097] The adjustable weighting system 12066 of the golf club head 12010 maintains or prevents a significant reduction in the club head's moment of inertia and a low back club head center of gravity location compared to a club head without an adjustable weighting system. The adjustable weighting system 12066 of the golf club head 12010 maintains a high club head moment of inertia and a low back club head CG location due to the low profile of the weighting system and the peripheral placement of the weight or weights. The club head 12010 with the adjustable weighting system 12066 may have similar or identical parameters and measurements as the club head 100 described above.

[0098] 15 and 16 show a club head 6810 having a club head body 6814. The club head body 6814 includes an adjustable weighting system 6866 that is adjusted by an end user to change the center of gravity and / or moment of inertia and / or heel / back bias of the club head 6810 to achieve desired performance characteristics (e.g., forgiveness, spin, trajectory) under various circumstances. The club head 6810 may be similar in many respects to the club heads 100, 11010, and 12010, with similar or identical elements designated with similar or identical numbers. The adjustable weighting system 6866, being a low profile system, does not significantly shift or change the moment of inertia of the club head 6810 as compared to a club head without the adjustable weighting system 6866. Additionally, the low profile adjustable weighting system 6866 ensures that the movement of the CG of the club head 6810 occurs primarily downward at the rear end 6834 with only slight movement toward the heel end 6822. This allows the CG of the entire club head 6810 to be maintained at a low and rearward position. The center of gravity location and MOI of the club head 6810 may be similar or the same as the center of gravity location and MOI of the club head 100 described above.

[0099] 15 and 16, the adjustable weighting system 6866 may include a recess 6880. The recess 6880 includes a concave surface 6881 configured to include a plurality of discrete mounting locations. The plurality of discrete mounting locations may include various features including protrusions, openings, recesses or ports, notches or tabs or cutout areas capable of receiving fasteners, ribs or grooves, pegs, hooks, magnets, programmable magnets, or any other suitable mounting means. In the illustrated embodiment, the adjustable weighting system 6866 includes a concave surface 6881 with three discrete mounting locations. The three different mounting locations may include features 6870A, B, C, respectively. The features 6870A, B, C may be any of the features described above. The mounting locations and corresponding features 6870A, B, C are configured to receive one or more weights 6882.

[0100] 15 and 16, the recess 6880 defines a groove, channel, and / or recessed track that extends along the sole or bottom of the club head 6810. The recess 6880 extends from the rear end 6834 (standard position) to the sole center 6832 (low spin position) and from there in a V-shape to the heel end 6822 (straight flight position effective for slicing). The V-shape is located closer to the heel end 6822 than to the toe end 6818 of the golf club body 6814. The recess 6880 is defined by a concave surface 6881 carved or inlaid into the sole 6830. The recess 6880 further includes an outer wall (or first wall) 6883 that extends the entire length of the recess 6880, and an inner wall (or second wall) 6884 that extends the entire length of the recess 6880. In the illustrated embodiment, the first wall 6883 and the second wall 6884 extend generally perpendicular to the concave surface 6881 and / or the sole 6830. In other embodiments, the first wall 6883 and the second wall 6884 may extend at an angle between the concave surface 6881 and / or the sole 6830.

[0101] 15 and 16, the recess 6880 includes a first region 6877 near the rear end 6834 and rear periphery 10136 of the club head 6810 (normal position), a second region 6876 near the sole center 6832 of the club head 6810 (low spin position), and a third region 6878 near the heel end 6822 and rear periphery 10136 (straight flight position useful for slicing). However, these regions are not separate and generally indistinguishable unless there is an attachment means. When the weight 6882 is coupled to the club head 6810 in an area of ​​the recess 6880, the weight 6882 may be flush with the sole 6830. When the weight 6882 is coupled to the club head 6810 at another area of ​​the recess 6880, a portion of the weight 6882 may protrude outward from the sole 6830, a portion of the weight 6882 may be recessed or sunken inward from the sole 6830, or a portion of the weight 6882 may be flush with the sole 6830.

[0102] The recess 6880 includes a depth measured as the distance from the recess 6881 to the sole 6830 in a direction perpendicular to the recess 6881. In the illustrated embodiment, the recess 6880 has a constant depth. In other embodiments, the recess 6880 may have a depth that increases, decreases, varies, and / or is constant along a length from the rear end 6834 to the sole center 6832 and / or along a length from the sole center 6832 to the heel end 6822.

[0103] In many embodiments, the recess 6880 has a shallow depth, ensuring that the adjustable weighting system 6866 has a low profile. The recess 6880 may have a depth that increases, decreases, varies, and / or is constant between the first region 6877 and the second region 6876 and / or between the second region 6876 and the third region 6878. For example, in some embodiments, the recess 6880 has a maximum depth of 0.50 inches. In other embodiments, the recess 6880 may have a maximum depth of 1.5 inches, 1.25 inches, 1.0 inches, 0.9 inches, 0.8 inches, 0.7 inches, 0.6 inches, 0.5 inches, 0.4 inches, 0.3 inches, 0.2 inches, or 0.1 inches. In other embodiments, the depth of the recess 6880 may vary within the range of 0.05 to 0.25 inches, 0.1 to 0.4 inches, 0.1 to 0.6 inches, 0.1 to 0.8 inches, 0.2 to 0.4 inches, 0.2 to 0.6 inches, 0.2 to 0.8 inches, 0.3 to 0.7 inches, 0.3 to 0.9 inches, 0.4 to 0.8 inches, 0.4 to 1.2 inches, 0.5 to 1.0 inches, 0.5 to 1.5 inches, or 1.0 to 1.5 inches.

[0104] The recess 6880 also has a cross-sectional shape and a cross-sectional area. In some embodiments, the cross-sectional shape of the channel 6813 may include a cylindrical shape, a circular shape, a rectangular shape, a triangular shape, a polygonal shape, or a trapezoidal shape. The recess 6880 may have a different and / or constant cross-sectional shape between the first region 6877 and the second region 6876, and / or between the second region 6876 and the third region 6878. The recess 6880 may have an increasing, decreasing, varying, and / or constant cross-sectional area between the first region 6877 and the second region 6876, and / or between the second region 6876 and the third region 6878.

[0105] Further, the recess 6880 includes a width measured as the distance between the first wall 6883 and the second wall 6884. In some embodiments, the width between the first region 6877 and the second region 6876 is different from the width between the second region 6876 and the third region 6878. In some embodiments, the width between the first region 6877 and the second region 6876 is greater than the width between the second region 6876 and the third region 6878. In other embodiments, the width between the first region 6877 and the second region 6876 is less than the width between the second region 6876 and the third region 6878. In other embodiments, the recess 6880 may have a width that increases, decreases, varies, and / or is constant between the first region 6877 and the second region 6876 and / or between the second region 6876 and the third region 6878. In many embodiments, the width may be less than 2.0 inches. For example, in some embodiments, the width may be less than 2.0 inches, less than 1.75 inches, less than 1.5 inches, less than 1.25 inches, less than 1.0 inches, less than 0.9 inches, less than 0.8 inches, less than 0.7 inches, less than 0.6 inches, less than 0.5 inches, less than 0.4 inches, less than 0.3 inches, or less than 0.2 inches. In other embodiments, the width may vary between 0.1 to 0.5 inches, 0.3 to 0.7 inches, 0.5 to 0.9 inches, 0.7 to 1.1 inches, 0.9 to 1.3 inches, 1.1 to 1.5 inches, 1.3 to 1.7 inches, or 1.5 to 2.0 inches.

[0106] 15 and 16, the recess 6880 may include one or more features 6870A, B, C that define discrete attachment locations for securing the weight 6882 to the club head 6810. Unlike other adjustable weighting systems, a club head 6810 with one or more discrete attachment locations allows the weight to be coupled to any location on the club head, or to an infinite number of locations, or to an unlimited number of locations. Referring again to FIGS. 15 and 16, in the illustrated embodiment, the recess 6880 includes three features 6870A, B, C. The features 6870A, B, C are shown as openings configured to receive threaded fasteners or screw fasteners 6885. The weight of the screw fasteners 6885 may be equal to or less than the weight removed to form the features 6870A, B, C. Additionally, the screw fasteners 6885 may include a material having a density equal to or less than the density of the material of the club head body. The threaded fasteners 6885 are configured to attach the weights 6882 to the features 6870A, B, C. In other embodiments, the features 6870A, B, C may be protrusions, openings, recesses, ports, notches, tabs, cut-out areas, ribs, grooves, pegs, hooks, magnets, programmable magnets, or any other suitable attachment means capable of receiving a fastener. In the illustrated embodiment, the adjustable weighting system 6866 includes three features 6870A, B, C. In other embodiments, the recesses 6880 may include any number of features, including one, two, three, four, five, six, seven, eight, nine, or ten features 6870.

[0107] As shown, the features 6870A, B, C are disposed within the recess 6880 along the concave surface 6881 such that one or more weights 6882 may be releasably or removably coupled to the club head 6810 along the recess 6880. More specifically, the first feature 6870A is disposed in a first region 6877 of the recess 6880 near the rear end 6834, the second feature 6870B is disposed in a second region 6876 of the recess 6876 near the sole center 6832, and the third feature 6870C is disposed in a third region 6878 of the recess 6880 near the heel end 6822. In other embodiments, one or more of the features 6870A, B, C may be disposed on the first wall 6883, the second wall 6884, and / or the concave surface 6881 of the recess 6880.

[0108] 15 and 16 , the weight 6882 has a generally rectangular shape. In other embodiments, the weight 6882 may have a circular, oval, triangular, trapezoidal, polygonal, or any other suitable shape configured to fit within the recess 6880. In the illustrated embodiment, the adjustable weighting system 6866 includes one weight 6882. The weight 6882 may vary between 0.1 and 50 g. In some embodiments, the weight 6882 may vary between 0.1 and 0.5 g, 0.5 and 1 g, 1 and 5 g, 5 and 10 g, 10 and 20 g, 20 and 30 g, 30 and 40 g, 40 and 50 g. For example, the weights 6882 may be 0.1g, 0.5g, 1g, 2g, 3g, 4g, 5g, 6g, 7g, 8g, 9g, 10g, 20g, 30g, 40g, or 50g. In other embodiments, the adjustable weighting system 6866 may include three weights 6882 corresponding to the number of features 6870A, B, C. In other embodiments, the adjustable weighting system 6866 may include a greater or lesser number of weights 6882 than the number of features 6870A, B, C. For example, the adjustable weighting system 6866 may include one, two, three, four, five, six, seven, eight, nine, or ten weights 6882.

[0109] In the illustrated embodiment, the weight 6882 includes an aperture extending completely through the weight 6882 that is sized and configured to receive a threaded fastener or fasteners 6885. The fasteners 6885 can be threaded through the weight 6882 and into corresponding features 6870A, B, C, thereby securing the weight 6882 in the recess 6880. In some embodiments, the weight 6882 can include a recess or spigot for receiving an upper portion of the fastener 6885, such that the fastener 6885 can be flush with an exterior portion of the weight 6882. In other embodiments, the weight 6882 can be configured to couple to the features 6870A, B, C by a friction fit, a snap fit mechanism, a set screw, or any other suitable structure.

[0110] In embodiments where the adjustable weighting system 6866 comprises two or more weights 6882, each of the weights 6882 may have the same shape and size. In other embodiments, the weights 6882 may have different shapes and sizes, such that the weights 6882 have different masses. Additionally, in some embodiments, the weights 6882 are made from different materials, such that the weights 6882 have different masses. For example, one weight 6882 may be made from a high density material, such as tungsten, and the remaining weights 6882 may be made from a lower density material, such as polyurethane or another plastic. In other embodiments, the weights 6882 may comprise the same or different materials and have different sizes or volumes, such that the masses are different. For example, one weight 6882 may have a larger volume than the remaining weights 6882. In some embodiments, each of the weights 6882 may have different volumes, such that the masses are different. In some embodiments, the weights 6882 may differ from each other in both volume and material. In some embodiments, one of the structures labeled 6882 is not a weight, but rather a lightweight (e.g., lightweight plastic) cover that snaps into or otherwise couples to one of the features 6870A, B, C.

[0111] In some embodiments, the weights 6882 may vary between 0.1 and 50 g. For example, in embodiments having multiple weights 6882, one or more of the weights 6882 may vary between 0 and 10 g, between 10 and 20 g, between 20 and 30 g, between 30 and 40 g, between 40 and 50 g. In some embodiments, the first weight 6882 may vary between 0 and 10 g, the second weight 6882 may vary between 10 and 20 g, and the third weight 6882 may vary between 20 and 30 g. In other embodiments, the first weight 6882 may vary between 1 and 5 g, and the second and third weights 6882 may vary between 5 and 30 g. In other embodiments, the first and second weights 6882 may vary between 1 and 10 g, and the third and fourth weights 6882 may vary between 5 and 25 g. In some embodiments, the first weight 6882 has a mass of 8.5 grams and the second and third weights 6882 each have a mass of 1.5 grams. In other embodiments, the first weight 6882 has a mass of 12 grams and the second and third weights 6882 each have a mass of 1.5 grams. In other embodiments, the first weight 6882 has a mass of 8.5 grams and the second and third weights 6882 each have a mass of 0.75 grams. In other embodiments, the first weight may have a mass of 10 to 20 g, 10 to 25 g, or 15 to 25 g, and the remaining weights (e.g., the second and third weights) may have a mass of 0.25 to 2.5 g, 0.25 to 5 g, 0.25 to 7.5 g, or 0.25 to 10 g. In other embodiments, the first weight may have a mass of 10g, 11g, 12g, 13g, 14g, 15g, 16g, 17g, 18g, 19g, 20g, 21g, 22g, 23g, 24g, 25g, 26g, 27g, 28g, 29g, or 30g, and the remaining weights may have masses of 1g, 2g, 3g, 4g, 5g, 6g, 7g, 8g, 9g, or 10g. In other embodiments, any number of the weights may have the same mass or may have varying masses between 0.1 and 50g.

[0112] 15 and 16, in the illustrated embodiment, one or more of the features 6870A,B,C receive weights 6882, while the remaining features 6870A,B,C are empty and uncovered, have no weights, or are covered with another material or structure. In other embodiments, each of the features 6870A,B,C receive weights 6882. In some embodiments, one or more of the features 6870A,B,C may receive weights 6882. In some embodiments, one or more of the features 6870A,B,C do not extend beyond the contour of the club head 6810, and thus the features 6870A,B,C and / or recesses 6880 do not interfere with or impede the golfer's swing, even if the features 6870A,B,C remain empty and uncovered.

[0113] Weights 6882 may be strategically placed in features 6870A, B, C to achieve a desired center of gravity location and / or moment of inertia and / or heel / back bias of the club head 6810. For example, in some embodiments, a heavier weight 6882 is placed in feature 6870A located near the rear end 6834, while lighter weights are placed in features 6870B, C near the sole center 6832 and heel end 6822. This placement of weights 6882 can move the center of gravity toward the rear end 6834 of the club head 6810.

[0114] In some embodiments, a heavier weight 6882 is located in feature 6870C near the heel end 6822, while a lighter weight 6882 is located in feature 6870A near the rear end 6834 and in feature 6870B located near the sole center 6832. This placement of weights 6882 may shift the center of gravity toward the heel end 6822 of the club head 6810.

[0115] In some embodiments, heavier weights 6882 are disposed in feature 6870B located at the sole center 6832, while lighter weights 6882 are disposed in feature 6870A near the rear end 6834 and feature 6870C near the heel end 6822. This placement of weights 6882 can position the center of gravity in the center of the club head 6810.

[0116] In many embodiments, one or more of the features 6870A, B, C are the same size and shape, and thus weights may be used interchangeably for each of the features 6870A, B, C. In some embodiments, one or more of the features 6870A, B, C may have different sizes and shapes, and thus each of the features 6870A, B, C has its own corresponding weight 6882 or set of weights 6882. Additionally, adjusting the position of the weights 6882 in the features 6870A, B, C can also affect the spin imparted to the ball after impact.

[0117] The adjustable weighting system 6866 of the golf club head 6810 maintains or prevents a significant reduction in the club head's moment of inertia and a low, rearward club head center of gravity location as compared to a club head without an adjustable weighting system. The adjustable weighting system 6866 of the golf club head 6810 maintains a high club head moment of inertia and a low, rearward club head CG location due to the low profile of the weighting system and the peripheral location of the weight(s).

[0118] 11 and 12 show a club head 13010 similar to the golf club head 100 described above, with similar or identical numbers indicating similar or identical elements. The club head 13010 has a club head body 13014 and includes an adjustable weighting system 13066 with a cable 13069 and a tensioner 13067 that is adjustable by an end user to change the center of gravity and / or moment of inertia and / or heel / toe bias of the club head 13010 to achieve desired performance characteristics (e.g., forgiveness, spin, trajectory) under various circumstances. The adjustable weighting system 13066 is a low profile system and does not significantly shift or change the MOI of the club head 13010 compared to a club head that does not include the adjustable weighting system 13066. Additionally, the low profile adjustable weighting system 13066 can ensure that CG movement of the club head 13010 occurs primarily in the direction from the heel end 13022 to the toe end 13018, maintaining a low and rearward CG for the entire club head 13010. The center of gravity location and MOI of the club head 13010 can be similar or identical to the center of gravity location and MOI of the club head 100 described above.

[0119] The adjustable weighting system 13066 is disposed on the sole 13030 of the club head 13010. As shown in FIGS. 11 and 12, the sole 13030 includes a recess 13080 having a concave surface 13081. The recess 13080 may be generally rectangular in shape and may be disposed near the rear 13023 extending from near the toe end 13018 and the rear periphery 10136 to near the heel end 13022 and the rear periphery 10136. In the illustrated embodiment, the recess 13080 extends generally parallel to the striking face 38. In other embodiments, the recess 13080 may be disposed anywhere on the sole 13030 and may be of any shape. The recess 13080 is recessed from the outer surface 13074 of the sole 13030 by a wall 13083. In the illustrated embodiment, the wall 13083 is perpendicular to the concave surface 13081 or the outer surface 13074 of the sole 13030. In other embodiments, the wall 13083 may slope upward or downward at an angle that is not perpendicular to the concave surface 13081 or the outer surface 13074 of the sole 13030. In the embodiment shown in Figures 11 and 12, the wall 13083 may border the entire perimeter of the recess 13080. In other embodiments, the wall 13083 may border a portion of the recess 13080.

[0120] In many embodiments, the wall 13083 may include a first wall portion 13089 positioned toward the striking face 38 of the club head 13010, a second wall portion 13090 positioned opposite the first wall portion 13089 toward the rear end 13023 of the club head 13010, a first end wall 13091 positioned toward the toe end 13018 of the club head 13010, and a second end wall 13092 positioned opposite the first end wall 13091 toward the heel end 13022 of the club head 13010. Generally, the concave surface 13081 extends generally parallel to the sole 13030 of the club head 13010, while the first and second walls 13083, 13084 and the first and second end walls 13091, 13092 extend generally perpendicular to the concave surface 13081 and / or the sole 13030. In other embodiments, the first and second walls 13083, 13084 and / or the first and second end walls 13091, 13092 may extend at a non-perpendicular angle between the concave surface 13081 and the sole 13030.

[0121] In many embodiments, such as those shown in FIGS. 11 and 12, the sole 13030 may further include one or more openings 13085 extending from the outer surface 13074 of the sole 13030 into the club head body and into the recess 13080. In some embodiments, the sole 13030 may include one, two, three, four, or five openings 13085. In the embodiment shown in FIGS. 11 and 12, the sole 13030 includes two openings 13085. In the illustrated embodiment, the openings 13085 are located on either side of the recess 13080. The openings 13085 are located on the outer surface 13074 of the sole and extend into the recess 13080 of the adjustable weighting system. In the illustrated embodiment, the openings 13085 extend into the first and second end walls 13091, 13092 of the recess 13080. The opening 13085 is configured to receive a tensioner 13067 of the adjustable weighting system 13066. As shown in FIG. 13 , the opening 13085 includes a threaded end 13086 adjacent the recess 13080 and a head or receiving end 13087 adjacent the outer surface 13074 of the sole 13030.

[0122] In the illustrated embodiment, the recess 13080 may further comprise a plurality of discrete attachment locations. The plurality of discrete attachment locations may comprise various features 13070 including protrusions, openings, recesses or ports capable of receiving fasteners, notches or tabs or cutout areas, ribs or grooves, pegs, hooks, magnets, programmable magnets, or any other suitable attachment means. The features 13070 define discrete attachment locations for securing one or more weights 13082 to the club head 13010. Unlike other adjustable weighting systems, the club head 13010 with one or more discrete attachment locations may couple weights to any location on the club head, or to an infinite number of locations, or to an unlimited number of locations. In the illustrated embodiment, the features 13070 are straight walled protrusions or ribs 13070 extending from the recess 13080 generally perpendicular to the striking face 38. In other embodiments, the feature 13070 may be a protrusion extending at any angle from the recess 13080 and may be any shape (eg, a circular peg, an hourglass peg, a square peg, etc.).

[0123] As shown in FIGS. 11 and 12, the recess 13080 includes five features 13070. Specifically, the recess 13080 includes a first feature 13070A near the toe end 13018, a second feature 13070E near the heel end 13022, a third feature 13070C between the first feature 13070A and the second feature 13070E, a fourth feature 13070B between the first feature 13070A and the third feature 13070C, and a fifth feature 13070D between the second feature 13070E and the third feature 13070C. In other embodiments, the recess 13080 may include any number of features 13070. For example, the recess 13080 may include one, two, three, four, five, six, seven, or eight features 13070. In some embodiments, each of the features 13070 are spaced approximately equidistant from one another. In other embodiments, each of the features 13070 may be spaced any distance from one another. In some embodiments, the features 13070 form square openings (or pockets) between each of the features 13070. In other embodiments, the features 13070 may form pockets of any shape (e.g., a polygon, or any shape having at least one curved surface) between each of the features 13070.

[0124] The weights 13082 are configured to be received by the features 13070 in the recesses 13080. Each of the weights 13082 has a general cross-sectional shape and size (e.g., cylindrical, square, rectangular, trapezoidal, etc.) that corresponds to the cross-sectional shape of the recesses 13080. As shown in FIGS. 11 and 12, the weights 13082 may have a rectangular cross-sectional shape. The weights 13083 may further include a notch 13084 disposed on a bottom surface of the weight 13083. The notch 13084 of the weight 13083 is configured to mate with the feature 13070 in the recesses 13080. In many embodiments, the shape of the notch 13084 of the weight 13082 corresponds to the shape of the feature 13070 in the recesses 13080.

[0125] The weight 13082 may further include a through hole 13071 configured to accommodate the cable 13069 of the adjustable weighting system 13066. With the weight 13082 disposed within the recess 13080, the through hole 13071 may extend through the weight 13082 in a direction from the heel end 13022 to the toe end 13018 of the club head 13010. In an assembled state, the through hole 13071 is parallel to the recess 13081. In other embodiments, the weight 13082 may not include the through hole 13071. In these or other embodiments, the weight 13082 may include a groove (not shown) configured to receive the cable 13069 and disposed on a top surface of the weight 13082.

[0126] The weight 13082 further comprises a mass. The mass of the weight 13082 may range from 3 to 35 grams, 3 to 12 grams, 5 to 18 grams, 8 to 23 grams, 12 to 25 grams, 18 to 27 grams, 20 to 30 grams, 25 to 33 grams, or 28 to 35 grams. For example, the weight 13082 may be 1 gram, 2 grams, 3 grams, 6 grams, 9 grams, 12 grams, 15 grams, 18 grams, 21 grams, 24 grams, 27 grams, 30 grams, 33 grams, or 35 grams. In embodiments in which the club head 13010 includes multiple weights 13082, the weights 13082 may all have the same mass or all have different masses. For example, the club head 13010 includes three weights 13082, where the first weight 13082 has a mass of 12 grams and the second and third weights 13082 both have a mass of 5 grams. In another example, the club head 13010 includes five weights 13082, where the first weight 13082 has a mass of 20 grams, the second weight 13082 has a mass of 15 grams, the third weight 13082 has a mass of 10 grams, the fourth weight 13082 has a mass of 7 grams, and the fifth weight 13082 has a mass of 3 grams.

[0127] An adjustable weighting system 13066 including a tensioner 13067 and a cable 13069 is configured to couple the weight 13082 to the club head 13010. The tensioner 13067 of the adjustable weighting system 13066 includes a fastener 13067A and a washer 13067B. In some embodiments shown in FIG. 14, the tensioner 13067 can be a clutch-brake cable adjuster with a notch 13068 cut into the fastener 13067A (which runs the entire length of the fastener 13067A) and the washer 13067B. The notch 13068 in the fastener 13067A and the washer 13067B couples the cable 13069 to the fastener 13067. In other embodiments, the tensioner 13067 can be any type of fastener and washer having a notch configured to receive the cable 13069.

[0128] As shown in FIGS. 12 and 13 , the tensioner 13067 is configured to be received within the opening 13085 of the sole 13030. The tensioner 13067 is inserted into the receiving end 13087 of the opening, the threaded end of the fastener 13067A mates with the threaded end 13086 of the opening 13085, and the washer 13067B rests in the receiving end 13087 of the opening. In some embodiments, the adjustable weighting system 13066 may include more than one tensioner 13067. For example, the adjustable weighting system 13066 may include one, two, three, or four tensioners 13067. In many embodiments, the number of tensioners 13067 corresponds to the number of openings 13085 configured to receive the tensioners 13067. 11 and 12, the sole 13030 includes a first opening 13085 near the toe end 13018 configured to receive a first tensioner 13067 and a second opening 13085 near the heel end 13022 configured to receive a second tensioner 13067. In many embodiments, when the tensioner 13067 is received within the opening 13085, the tensioner 13067 does not extend beyond the outer surface 13074 of the sole 13030.

[0129] A cable 13069 of the adjustable weighting system 13066 is configured to be received by the tensioner 13067 and disposed within the recess 13080. The cable 13069 may be coupled to the tensioner 13067 via a fastener 13067A and a notch 13068 in a washer 13067B, which rotates to secure the cable 13069 within the fastener 13067A. The width of the end of the cable 13069 is greater than the width of the notch 13068, preventing the cable 13069 from disengaging from the fastener 13067A when tension is applied to the cable 13069. In some embodiments, the adjustable weighting system 13066 includes one tensioner 13067, where one end of the cable 13069 is configured to couple to the tensioner 13067 and the other end of the cable 13069 is configured to be attached / fixed to an opposite end of the club head 13010 relative to the tensioner 13067. In other embodiments, the adjustable weighting system includes two tensioners 13067, where one end of the cable 13069 may be configured to couple to a first tensioner 13067 and the other end of the cable 13069 may be configured to couple to a second tensioner 13067. For example, as shown in FIGS. 11 and 12, one end of the cable 13069 may be coupled to a first tensioner 13067 near the heel end 13022, and the other end of the cable 13069 may be coupled to a second tensioner 13067 near the toe end 13018.

[0130] The cable 13069 may be a metallic material (e.g., steel wire rope, aluminum wire rope, copper wire rope, tungsten wire rope, nickel wire rope, silver wire rope, or any other metal wire rope) or a non-metallic material such as a fiber, polymer, plastic, or composite type rope. For example, the cable 13069 may include nylon with baling twine, parachute cord material, nylon, Kevlar, polymer tweed, polymer coated steel wire, polymer coated any metal wire, high modulus polyethylene fiber, polycarbonate, polyoxymethylene, and / or polyamide.

[0131] Once received within the opening 13085 of the sole 13030, the tensioner 13067 may be rotated (i.e., twisted) to adjust the tension of the cable 13069. A notch 13068 in the tensioner 13067 allows the cable 13069 to be coupled to the tensioner 13067 such that as the tensioner 13067 rotates, the cable 13069 remains stationary and does not rotate with the tensioner 13067. A washer 13067B of the tensioner 13067 acts as a stop within the opening 13085 to prevent the fastener 13067A of the tensioner 13067 from moving within the opening 13085 during swing and / or impact. As the tensioner 13067 is rotated clockwise, the tensioner 13067 retracts further into the opening 13085 and the cable is slackened. With the cable 13069 in a relaxed state, the weight 13082 can be lifted from the feature 13070 in the recess 13080 and moved to another feature 13070 (or the weight 13082 with the through hole 13071 can slide along the cable 13069). Additionally, with the cable 13069 in a relaxed state, an additional weight 13082 with a groove (not shown) can be placed on the feature 13070 and under the cable 13069 to increase the weight. By repositioning the weight 13082, the CG of the club head 13010 is reconfigured. For example, the weight 13082 can be repositioned from a first feature 13070A near the toe end 13018 to a second feature 13070E near the heel end 13022, moving the CG toward the heel end 13022 to help correct the ball trajectory for a player who tends to slice and / or draw the ball. In other embodiments, the cable 13069 may be slackened by other means other than the tensioner 13067.

[0132] The tensioner 13067 may be rotated counterclockwise (i.e., twisted) to increase tension on the cable 13069, and the washer 13067B prevents the fastener 13067A of the tensioner 13067 from moving within the opening 13085. When the tensioner 13067 is rotated counterclockwise, the tensioner 13067 disposed within the opening 13085 extends outward toward and flush with the outer surface 13074 of the sole 13030, indicating that the cable 13069 has reached maximum tension. As shown in FIG. 12, when the cable 13069 is tightened and presses against the weight 13082 (i.e., pressing against the through hole 13071 or groove), a force is generated against the feature 13070 of the recess 13080, securing the weight 13082. When the weight 13082 abuts the feature 13070, the weight 13082 is flush with the outer surface 13074 of the sole 13030. In other embodiments, when the weight 13082 abuts the feature 3270, the weight 13082 may extend beyond the outer surface 13074 of the sole 13030, but does not extend beyond the lowest point of the club head 13010 at address. In other embodiments, when the weight 13082 abuts the feature 13070, the weight 13082 is recessed from the outer surface 13074 of the sole 13030 and does not extend to or beyond the outer surface 13074 of the sole 13030. In other embodiments, the cable 13069 may be retracted by means other than the tensioner 13067.

[0133] The above-described club head 13010 with an adjustable weighting system 13066 including tensioner 13067 (or other cable adjustment means) and cable 13069 can optimize the performance of the golf club. As with club heads without an adjustable weighting system, the adjustable weighting system 13066 allows the club head 13010 to be weighted to have a low center of gravity about the x-axis (heel-toe end) without sacrificing a high moment of inertia (MOI). By moving the CG about the x-axis, the player can compensate for a slice or hook in the ball trajectory.

[0134] Compared to club heads with more complex structures for accommodating weights (e.g., deep weight ports, multiple weight ports, rail systems, weight covers / caps), the club head 13010 with the adjustable weighting system 13066 with tensioner 13067 and cable 13069 has further utility in terms of ease of manufacture. The weight 13082 coupled to the club head body 13014 is secured by tension in the cable 13069, which exerts a force on the weight 13082 on the features 13070 of the club head 13010. The force created by the tension can eliminate the need to manufacture the club head 13010 with a weight housing structure with complex internal / external shapes for securing the weight 13082. Thus, the material and mass associated with the complex weight housing structure can be reduced. The mass reduced by using a low profile adjustable weighting system can then be placed elsewhere in the club head to increase strength and / or MOI and improve CG position. The force created by the tension in the cable 13069 can further eliminate the need for threaded fasteners, and therefore, the weight 13082 and club head 13010 do not need to be manufactured with threaded holes and receiving features to accept fasteners. The lack of fasteners and threaded holes reduces manufacturing costs and improves ease of manufacture.

[0135] Additionally, the cables 13069 of the adjustable weighting system 13066 are lightweight, strong, and can be incorporated into many different patterns in the recesses 13080 of the club head 13010. Because the weights 13082 are not limited to a particular weight housing structure, different patterns allow the weights 13082 to be placed in many different locations on the sole 13030. Various weight locations allow for fine tuning of the CG placement, allowing ball spin and trajectory adjustments for individual players. The cables 13069 may further be strategically placed in a pattern such that the cables can reinforce specific locations of the club head 13010. The material and pattern of the cables 13069 may further act as a sound damper, absorbing vibrations experienced by the club head 13010 during impact, thereby reducing undesirable sounds and undesirable stresses during a game.

[0136] The adjustable weighting system 13066 of the golf club head 13010 maintains or prevents a significant reduction in the club head's moment of inertia and a low back club head center of gravity location compared to a club head without an adjustable weighting system. The adjustable weighting system 13066 of the golf club head 13010 maintains a high club head moment of inertia and a low back club head CG location due to the low profile of the weighting system and the peripheral location of the weight(s). The club head 13010 with the adjustable weighting system 13066 may have similar or identical parameters and measurements as the club head 100 described above.

[0137] In some embodiments, one or more of the other adjustable weights described herein (e.g., weights 11082, 6882, 12082, and / or 13082) may be positioned a minimum distance from the center of gravity (CG) of the corresponding club head in a range of about 1.0 to 2.6 inches (e.g., about 1.0 inches, about 1.2 inches, about 1.4 inches, about 1.6 inches, about 1.8 inches, about 2.0 inches, about 2.2 inches, about 2.4 inches, or about 2.6 inches). In some embodiments, one or more of the other adjustable weights described herein (e.g., weights 11082, 6882, 12082, and / or 13082) may also be positioned within a maximum distance of about 0.450 inches to about 0.550 inches inward from the periphery of the corresponding club head when viewed from the top or side (e.g., the maximum distance from the periphery may be about 0.450 inches, about 0.460 inches, about 0.470 inches, about 0.480 inches, about 0.490 inches, about 0.500 inches, about 0.510 inches, about 0.520 inches, about 0.530 inches, about 0.540 inches, or about 0.550 inches). Other embodiments include different values ​​and ranges.

[0138] In some embodiments, one or more of the weights described herein (e.g., 11082, 6882, 12082, and / or 13082) may comprise, at least in part, a high density metal, a metal alloy, or any other material (e.g., a plastic or composite material with high density metal beads or powder). In some embodiments, weights 11082, 6882, 12082, and / or 13082 may comprise, at least in part, steel, tungsten, aluminum, titanium, vanadium, chromium, cobalt, nickel, other metals, metal alloys, or any combination thereof.

[0139] In many embodiments, the cable 13069 can have a thickness of 0.020 to 0.125 inches. For example, in some embodiments, the thickness of the cable 13069 can be 0.021 to 0.041 inches, 0.037 to 0.057 inches, 0.053 to 0.073 inches, 0.068 to 0.088 inches, 0.084 to 0.104 inches, 0.099 to 0.119 inches, or 0.115 to 0.135 inches.

[0140] In some embodiments, the cable can withstand a tensile load of up to 1500 Newtons (N). For example, in many embodiments, the cable can withstand a tensile load of 200N to 1500N. For example, in some embodiments, the cable can withstand a tensile load of up to 200N, up to 300N, up to 400N, up to 500N, up to 600N, up to 700N, up to 800N, up to 900N, up to 1000N, up to 1100N, up to 1200N, up to 1300N, up to 1400N, or up to 1500N. Other embodiments may include different ranges and values.

[0141] In some embodiments, one or more of the club heads described herein may include two or more tensioners. For example, in some embodiments, the club head 13010 may include two or more tensioners (e.g., along a single recess or separate recesses in the club head) each coupled to one or more cables. In some embodiments, one tensioner applies tension to a first set of cables to hold one or more weights against the club head, and another tensioner applies tension to a second set of cables to hold one or more weights against the club head.

[0142] Some of the embodiments described herein include a single cable, while other embodiments include multiple cables, and any of the embodiments described herein may include single or multiple cables corresponding to one or more tensioners.

[0143] Although some of the embodiments described herein include a single channel or recess that provides one or more features for guiding a cable and / or locating one or more weights, and other embodiments described above include a network of different channels that provide features for guiding one or more cables and / or locating one or more weights, any of the embodiments described herein may include a single channel or a network of channels. Additionally, although a particular network of channels is illustrated, any of the club heads described herein may have any channel arrangement, pattern, or size.

[0144] While various grooves (not shown) in the weights are described above, other embodiments include different numbers, sizes, and shapes of grooves to accommodate the cables. For example, in some embodiments, one or more of the weights 13082 include a groove or track with a C-shaped profile (as opposed to a U-shaped or V-shaped profile) so that one or more cables "snap" into the groove and are generally held in place in the groove while also allowing the weight to slide along the cable. In some embodiments, one or more of the channels for one or more cables have a C-shaped (or other shaped) profile or track (as opposed to a U-shaped or V-shaped profile) so that one or more cables "snap" into the channel and are generally held in place in the channel while also allowing the cable to move within the channel. In some embodiments, the channel includes a track or other profile that holds or restrains the cable, for example, as the channel curves along the club head body, so that the cable does not exit the channel even while the cable is under tension.

[0145] In some embodiments, one or more weights described herein (e.g., 11082, 6882, 12082, and / or 13082) may be attracted to the club head 11010, 12010, and 13010 by magnetic forces, such that the one or more weights are held to the club head at least in part by magnetic forces. For example, in some embodiments, one or more features 11070, 6870, and 12070 are protrusions or notches that are at least in part composed of a metallic material, and one or more weights 11082, 6882, 12082, and / or 13082 are at least in part composed of a magnetic material. The one or more weights may be held in place at least in part by magnetic attraction between the one or more magnets and the one or more features, and also by one or more of the other structures described herein (e.g., threaded protruding posts, ribs, etc.). In some embodiments, the weights may snap into place on the protrusions or in the notches and are held against the club head at least in part by frictional forces and also by magnetic forces. In some embodiments, one or more weights may be held in place only by magnetic forces. In still other embodiments, one or more of weights 11082, 6882, 12082, and / or 13082 are at least in part constructed from a metallic material and one or more of features 11070, 6870, 12070, and 13070 are at least in part constructed from a magnetic material.

[0146] In some embodiments, one or more of the weights described herein (e.g., 13082) are pressed and held against the club head 13010 solely by tension in one or more cables. Thus, in at least some embodiments, the club head does not include spaced notches or protrusions or other features sized and shaped to accommodate a single weight. Rather, the club head includes a larger surface (e.g., a concave surface), a tensioner, and one or more cables that are coupled to (e.g., pressed against) one or more weights. The tension on the one or more cables by actuation of the tensioner is sufficient to hold the one or more weights in a desired position or arrangement relative to the club head. When tension is released in the tensioner, the one or more weights may be moved to a different position along the surface.

[0147] In some embodiments, one or more of the weights described herein (e.g., 11082, 6882, 12082, and / or 13082) include one or more rails (e.g., T-shaped rails, etc.) along a portion of the weight. Additionally, one or more channels (e.g., a network of channels) sized and shaped to receive the rails may be formed in the club head such that the one or more weights may move along the channels from one location to another along the club head. In some embodiments, at least one tensioner and cable, and / or at least one magnet may be provided to facilitate securing the one or more weights at various locations along the club head (e.g., along the channels).

[0148] In some embodiments, one or more of the weights described herein (e.g., 11082, 6882, 12082, and / or 13082) may include a port or hole for receiving a protrusion from the club head body, or the weight includes a protrusion or screw that is received into a hole or port in the club head body (e.g., a recessed area of ​​the club head body).

[0149] Additionally, while some of the above-described embodiments are described in the context of having a recessed area and / or a concave surface in the sole of the club head body, in some embodiments the club head body may also include a recessed area, including a concave surface, along the crown or top of the club head. Thus, while generally described above as being primarily located in the sole of the club head, in some embodiments adjustable weighting systems 11066, 6866, 12066, and 13066 may instead be primarily located on the crown, skirt, heel, toe, or toe of the club head.

[0150] Although various projections are illustrated and described herein as being used to couple the weight to the club head, the particular shape and size of the projections are not limited. Thus, various shapes of projections (e.g., tapered projections, or projections of various sizes and shapes) may be used, including cylindrical, rectangular, square, spiral, trapezoidal, pyramidal, etc. The projections and / or corresponding openings may be adapted to fit together. The projections may be wings or tabs that extend away from the club head, or may be posts. Various other types of projections may also be used.

[0151] While the various covers, sole plates, geometric patterns, tensioners, cables, guides, clips, elongated channels, additional channels, threaded openings, and other features are described above in connection with one or more particular embodiments, in still other embodiments, one or more of these features may be combined on a golf club head with a different embodiment or one or more other features described herein.

[0152] Although not shown, in some embodiments, one or more of the club heads described herein may also include additional openings that can be filled with a polymer adhesive or other material for additional weighting.

[0153] In some embodiments, a tool may be used to tighten, loosen, and / or remove one or more of the weights described herein. For example, in some embodiments, one or more weights may include a specially designed or customized hole or specially designed socket that is large enough to engage a portion of a tool (e.g., a torque wrench), facilitating engagement of the torque wrench with the weight. The hole or socket may be any suitable shape, such as a star, triangle, square, slot, Phillips®, Torx®, POSIDRIV®, SUPADRIVE®, pentagon, hexagon, or any other suitable polygonal or other key shape.

[0154] (Example 1 Adjustable weighting system for drivers) According to one example of a golf club head 12010 shown in Figures 9 and 10, the club head 12010 comprises a volume of 457 cubic centimeters (cc). The example club head 12010 includes a recess 12013 with a channel disposed at a rear edge 12072 along a rear perimeter 10136. The recess 12013 includes a bottom wall (or third surface) 12075 having three attachment locations (or features) with threaded openings. The attachment locations include a first attachment location (or feature) 12070A near the toe end 12018, a second attachment location (or feature) 12070C near the heel end 12022, and a third attachment location (or feature) 12070B between the toe end 12018 and the heel end 12022.

[0155] The adjustable weighting system 12066 of the exemplary club head 12010 further comprises a first weight 12082 having a mass of 18 grams. The first weight 12082 has a height 10152 of 0.33 inches, a width 10154 of 1.18 inches, and a depth of 0.29 inches. The first weight 12082 comprises openings corresponding to a plurality of openings defining discrete mounting locations on the club head 12010. The first weight 12082 is secured to the discrete mounting locations using fasteners disposed through the openings in the first weight 12082 and the openings in the club head 12010. The fasteners comprise a material having the same material as the body or a density lower than that of the body and therefore do not contribute significantly to the weighting of the club head.

[0156] The first weight 12082 can be located at a first mounting location near the toe, a second mounting location near the heel, or a third mounting location between the toe and heel. With reference to Table 1 below, when the first weight is located at the first, second, or third mounting location, the center of gravity 10134 of the first weight is located at a distance 10142 between 0.19 inches and 0.22 inches from the rear perimeter 10136 of the club head 6810. Additionally, when the first weight is located at the first, second, or third mounting location, the center of gravity 10134 of the first weight is located at a distance 10138 between 3.26 inches and 4.41 inches from the geometric center 140 of the striking face 38.

[0157] With further reference to Table 1 below, the club head 6810 includes a head CG depth 10130 of 1.59 inches to 1.71 inches and a head CG height 10132 of 0.088 inches to 0.108 inches above the head depth plane 10120. The exemplary club head 6810 further includes a head CG depth 10130 of 1.59 inches to 1.71 inches and a head CG height 10132 of 0.088 inches to 0.108 inches above the head depth plane 10120. 2 Moment of inertia I about the x-axis xx and 4,936 to 5,383 g cm 2 Moment of inertia I about the y-axis yy and 8,815 to 10,359 g cm 2 Moment of inertia I about the hosel axis hh The combined moment of inertia (i.e., the sum of the moment of inertia about the x-axis and the moment of inertia about the y-axis) of the example club head 6766 about the club head CG is between 8,023 and 9,153 g cm 2 The exemplary club head 6766 has a club head CG and a combined moment of inertia about the hosel axis (i.e., the sum of the moment of inertia about the x-axis, the moment of inertia about the y-axis, and the moment of inertia about the hosel axis) of 16,841 to 19,237 g cm 2 It is.

[0158] With further reference to Table 1 below, the example club head having the adjustable weighting system 6766 has a depth-to-mass ratio for the depth of the club head CG to the mass of the first weight, the depth-to-mass ratio being 0.099 inches to 0.106 inches. Additionally, the example club head having the adjustable weighting system 6766 has a first inertia mass ratio for the combined moment of inertia of the club head about the head CG to the mass of the first weight, the inertia mass ratio being 446 cm. 2 From 508cm 2 Additionally, the example club head with the adjustable weighting system 6766 has a head CG weight ratio for maximum head CG movement relative to the mass of the first weight, the head CG weight ratio being 0.015 inches / grams. Thus, the adjustable weighting system 6766 of the example club head 6810 allows the user to maximize head CG depth, moment of inertia, and head CG movement without using large, heavy weights with significant weight structures.

[0159] [Table 1]

[0160] By moving the weight between the first, second, and third discrete mounting locations, the maximum movement of the center of gravity of the club head is 0.27 inches. The maximum movement of the center of gravity of the exemplary club head 6810 results in an overall trajectory change of up to 12.4 yards (i.e., when moving the first weight from the first mounting location to the second mounting location or from the second mounting location to the first mounting location). Thus, by moving the weight from the third mounting location to the second mounting location, the trajectory of the golf ball can be changed by 6.2 yards to correct a slice or create a draw. Additionally, by moving the weight from the third mounting location to the first mounting location, the trajectory of the golf ball can be changed by 6.2 yards to correct a hook or create a fade.

[0161] (Clause 1) A golf club head, a club head body having a toe end, a heel end opposite the toe end, a crown, a sole opposite the crown, a striking face, a back end opposite the striking face, and a periphery at a junction between the crown and the sole extending from adjacent the heel end to adjacent the toe end; an adjustable weighting system located on the sole, the perimeter, or a combination thereof; The adjustable weighting system comprises: a recess having an arcuate shape generally following the contour of the periphery of the golf club head, the recess having a maximum depth of 0.25 inches; a plurality of discrete mounting locations disposed in the recess; one or more weights; each of the one or more weights has a weight center of gravity and is configured to be coupled to one of the plurality of discrete mounting locations and configured to be movable between the plurality of discrete mounting locations to move a center of gravity of the club head; the one or more weights are positioned within 0.50 inches of the periphery of the club head with the weight coupled to at least one of the discrete mounting locations; the one or more weights are positioned such that the weight center of gravity of each of the weights is offset from the exterior contour of the club head by a distance less than 0.125 inches; a combined moment of inertia defined as the sum of a crown-sole moment of inertia and a heel-toe moment of inertia, the combined moment of inertia of the club head about the center of gravity of the club head being 8,000 g cm 2 A larger golf club head.

[0162] (Clause 2) 2. The golf club head of claim 1, wherein the plurality of discrete attachment locations are selected from the group consisting of a plurality of protrusions, a plurality of recesses, a plurality of openings, a plurality of notches, a plurality of tabs, a plurality of cutout areas, a plurality of ribs, a plurality of grooves, and a plurality of hooks.

[0163] (Clause 3) 3. The golf club head of claim 2, wherein the plurality of discrete mounting locations comprises a plurality of threaded apertures configured to receive fasteners.

[0164] (Clause 4) 2. The golf club head of claim 1, wherein the one or more weights comprise a first weight of between 10 grams and 20 grams.

[0165] (Clause 5) The adjustable weighting system comprises: a first attachment location disposed toward the rear end and the toe end; a second attachment location disposed toward the rear end and the heel end; 2. The golf club head of claim 1, further comprising: a third attachment location centrally disposed and toward the rear end.

[0166] (Clause 6) 6. The golf club head of clause 5, wherein moving the first weight from the first mounting location to the second mounting location moves the center of gravity of the club head a distance of at least 0.10 inches.

[0167] (Clause 7) 7. The golf club head of claim 6, wherein with the first weight positioned at any of the first mounting location, the second mounting location, and the third mounting location, the center of gravity of the club head is greater than 1.65 inches.

[0168] (Article 8) a depth-to-mass ratio defined as the ratio of the combined moment of inertia to a mass of the first weight; 2. The golf club head of claim 1, wherein the depth-to-mass ratio is greater than 0.060 inches per gram.

[0169] (Article 9) 2. The golf club head of claim 1, wherein the recess comprises a channel extending from near the toe end to near the heel end of the club head.

[0170] (Article 10) 10. The golf club head of clause 9, wherein a depth of the channel varies from near the toe end to near the heel end of the club head.

[0171] (Article 11) 10. The golf club head of clause 9, wherein a width of the channel varies from near the toe end to near the heel end of the club head.

[0172] (Article 12) A golf club head, a club head body having a toe end, a heel end opposite the toe end, a crown, a sole opposite the crown, a striking face, a back end opposite the striking face, and a periphery at a juncture between the crown and the sole extending from adjacent the heel end to adjacent the toe end; an adjustable weighting system located on the sole, the perimeter, or a combination thereof; The adjustable weighting system comprises: a V-shaped recess having a maximum depth of 0.25 inches; a plurality of discrete mounting locations disposed in the recess; one or more weights; each of the one or more weights has a weight center of gravity and is configured to be coupled to one of the plurality of discrete mounting locations and configured to be movable between the plurality of discrete mounting locations to move a center of gravity of the club head; the one or more weights are located within 0.50 inches of the periphery of the club head with the weight coupled to at least one of the discrete mounting locations; the one or more weights are positioned such that the weight center of gravity of each of the weights is offset from the exterior contour of the club head by a distance less than 0.125 inches; a combined moment of inertia defined as the sum of a crown-sole moment of inertia and a heel-toe moment of inertia, the combined moment of inertia of the club head about the center of gravity of the club head being 8,000 g cm 2 A larger golf club head.

[0173] (Article 13) 13. The golf club head of claim 12, wherein the plurality of discrete attachment locations are selected from the group consisting of a plurality of protrusions, a plurality of recesses, a plurality of openings, a plurality of notches, a plurality of tabs, a plurality of cutout areas, a plurality of ribs, a plurality of grooves, and a plurality of hooks.

[0174] (Article 14) Clause 14. The golf club head of clause 13, wherein the plurality of discrete mounting locations comprises a plurality of threaded apertures configured to receive fasteners.

[0175] (Article 15) 13. The golf club head of clause 12, wherein the one or more weights comprise a first weight of between 10 grams and 20 grams.

[0176] (Article 16) The adjustable weighting system comprises: a first attachment location disposed near the rear end; a second attachment location disposed at a center of the sole; Clause 13. The golf club head of clause 12, further comprising: a third attachment location disposed near the heel end.

[0177] (Article 17) 17. The golf club head of clause 16, wherein moving the first weight from the first mounting location to the second mounting location moves the center of gravity of the club head a distance of at least 0.10 inches.

[0178] (Article 18) 18. The golf club head of claim 17, wherein with the first weight positioned at any of the first mounting location, the second mounting location, and the third mounting location, the center of gravity of the club head is greater than 1.65 inches.

[0179] (Article 19) a depth-to-mass ratio defined as the ratio of the combined moment of inertia to a mass of the first weight; 13. The golf club head of claim 12, wherein the depth-to-mass ratio is greater than 0.060 inches per gram.

[0180] (Article 20) Clause 13. The golf club head of clause 12, wherein the recess comprises a channel extending from near the toe end to near the heel end of the club head.

[0181] (Article 21) 21. The golf club head of clause 20, wherein a depth of the channel varies from near the toe end to near the heel end of the club head.

[0182] (Article 22) Clause 21. The golf club head of clause 20, wherein a width of the channel varies from near the toe end to near the heel end of the club head.

[0183] (Article 23) A golf club head, a club head body having a toe end, a heel end opposite the toe end, a crown, a sole opposite the crown, a striking face, a back end opposite the striking face, and a periphery at a junction between the crown and the sole extending from adjacent the heel end to adjacent the toe end; an adjustable weighting system located on the sole, the perimeter, or a combination thereof; The adjustable weighting system comprises: a recess having a rectangular shape and extending from the toe end to the heel end, the recess having a maximum depth of 0.25 inches; a plurality of discrete mounting locations disposed in the recess; Cables and a tensioner disposed within the opening in the sole for increasing or decreasing tension in the cable; one or more weights coupled to the cable; each of the one or more weights has a weight center of gravity and is configured to be coupled to one of the plurality of discrete mounting locations and configured to be movable between the plurality of discrete mounting locations to move a center of gravity of the club head; the one or more weights are positioned such that the weight center of gravity of each of the weights is offset from the exterior contour of the club head by a distance less than 0.125 inches; a combined moment of inertia defined as the sum of a crown-sole moment of inertia and a heel-toe moment of inertia, the combined moment of inertia of the club head about the center of gravity of the club head being 8,000 g cm 2 A larger golf club head.

[0184] (Article 24) a first attachment location disposed near the toe end; a second attachment location disposed near the heel end; Clause 24. The golf club head of clause 23, further comprising a third mounting location disposed between the first and second mounting locations.

[0185] (Article 25) Clause 24. The golf club head of clause 23, wherein the tensioner comprises a fastener having a notch for receiving the cable.

[0186] (Article 26) 24. The golf club head of claim 23, wherein the cable comprises a metallic material selected from the group consisting of steel wire rope, aluminum wire rope, copper wire rope, tungsten wire rope, nickel wire rope, polymer coated steel wire, and silver wire rope.

[0187] (Article 27) 24. The golf club head of claim 23, wherein the cable comprises a non-metallic material selected from the group consisting of baling twine, parachute cord material, nylon, Kevlar, and polymer tweed.

[0188] (Article 28) Clause 24. The golf club head of clause 23, wherein the one or more weights include a through hole configured to accommodate the cable.

[0189] (Article 29) 24. The golf club head of claim 23, wherein the tensioner is flush with an outer surface of the sole when the cable is at maximum tension.

[0190] The replacement of one or more claimed elements constitutes a reconstruction, not a repair. Moreover, although benefits, other advantages, and solutions to problems have been described with respect to particular embodiments, those benefits, advantages, solutions to problems, and any elements that may provide or make more pronounced any benefit, advantage, or solution should not be construed as a critical, necessary, or essential feature or element of any or all of the claims, unless such benefit, advantage, solution, or element is expressly recited in the claim.

[0191] Because the rules of golf are subject to change (e.g., new regulations may be adopted and old rules may be eliminated or modified by golf standards organizations and / or governing bodies, such as the United States Golf Association (USGA) or the Royal and Ancient Golf Club of St. Andrews (R&A)), golf equipment related to the apparatus, methods, and products described herein may or may not conform to the rules of golf of a particular era. Accordingly, golf equipment related to the apparatus, methods, and products described herein may be advertised, offered for sale, and / or sold as conforming or non-conforming golf equipment. The apparatus, methods, and products described herein are not limited in this respect.

[0192] Although the above examples may be described in connection with wood-type golf clubs, the devices, methods, and products described herein may be applicable to various types of golf clubs, including drivers, fairway woods, hybrids, crossovers, or any hollow body type golf clubs, or to other types of sports equipment, such as hockey sticks, tennis racquets, fishing rods, ski poles, etc.

[0193] Moreover, embodiments and limitations disclosed herein will not be made available to the public under the doctrine of public domain if the embodiment and / or limitation (1) is not explicitly claimed in the claims and (2) is or may be equivalent to an explicit element and / or limitation in the claims under the doctrine of equivalents.

[0194] Although the invention has been described in detail with reference to certain preferred embodiments, variations and modifications exist within the scope and spirit of one or more independent aspects of the invention described.

Claims

1. A golf club head, a club head body having a toe end, a heel end opposite the toe end, a crown, a sole opposite the crown, a striking face, a back end opposite the striking face, and a periphery at a junction between the crown and the sole extending from adjacent the heel end to adjacent the toe end; an adjustable weighting system located on the sole, the perimeter, or a combination thereof; The adjustable weighting system comprises: a recess having an arcuate shape that generally follows the contour of the periphery of the golf club head, the recess having a maximum depth of 0.25 inches; a plurality of discrete mounting locations disposed in the recess; one or more weights, each of the one or more weights has a weight center of gravity and is configured to be coupled to one of the plurality of discrete mounting locations and configured to be movable between the plurality of discrete mounting locations to move a center of gravity of the club head; the one or more weights are located within 0.50 inches of the periphery of the club head with the weight coupled to at least one of the discrete mounting locations; the one or more weights are positioned such that the weight center of gravity of each of the weights is offset from an exterior contour of the club head by a distance less than 0.125 inches; a combined moment of inertia defined as the sum of a crown-sole moment of inertia and a heel-toe moment of inertia, the combined moment of inertia of the club head about the center of gravity of the club head being 8,000 g cm ２ A larger golf club head.

2. 2. The golf club head of claim 1, wherein the plurality of discrete attachment locations are selected from the group consisting of: a plurality of protrusions, a plurality of recesses, a plurality of openings, a plurality of notches, a plurality of tabs, a plurality of cutout areas, a plurality of ribs, a plurality of grooves, and a plurality of hooks.

3. The golf club head of claim 2 , wherein the plurality of discrete mounting locations comprises a plurality of threaded apertures configured to receive fasteners.

4. The golf club head of claim 1 , wherein the one or more weights comprise a first weight of between 10 grams and 20 grams.

5. The adjustable weighting system comprises: a first attachment location disposed toward the rear end and the toe end; a second attachment location disposed toward the rear end and the heel end; The golf club head of claim 1 , further comprising: a third attachment location centrally and toward the rear end.

6. 6. The golf club head of claim 5, wherein moving the first weight from the first mounting location to the second mounting location moves the center of gravity of the club head a distance of at least 0.10 inches.

7. 7. The golf club head of claim 6, wherein the center of gravity of the club head is greater than 1.65 inches when the first weight is located at any one of the first mounting location, the second mounting location, and the third mounting location.

8. a depth-to-mass ratio defined as a ratio of the combined moment of inertia to a mass of the first weight; The golf club head of claim 1 , wherein the depth-to-mass ratio is greater than 0.060 inches / grams.

9. The golf club head of claim 1 , wherein the recess comprises a channel extending from near the toe end to near the heel end of the club head.

10. 10. The golf club head of claim 9, wherein the channel depth varies from near the toe end to near the heel end of the club head.

11. 10. The golf club head of claim 9, wherein the channel width varies from near the toe end to near the heel end of the club head.

12. A golf club head, a club head body having a toe end, a heel end opposite the toe end, a crown, a sole opposite the crown, a striking face, a back end opposite the striking face, and a periphery at a junction between the crown and the sole extending from adjacent the heel end to adjacent the toe end; an adjustable weighting system located on the sole, the perimeter, or a combination thereof; The adjustable weighting system comprises: a V-shaped recess having a maximum depth of 0.25 inches; a plurality of discrete mounting locations disposed in the recess; one or more weights, each of the one or more weights has a weight center of gravity and is configured to be coupled to one of the plurality of discrete mounting locations and configured to be movable between the plurality of discrete mounting locations to move a center of gravity of the club head; the one or more weights are located within 0.50 inches of the periphery of the club head with the weight coupled to at least one of the discrete mounting locations; the one or more weights are positioned such that the weight center of gravity of each of the weights is offset from an exterior contour of the club head by a distance less than 0.125 inches; a combined moment of inertia defined as the sum of a crown-sole moment of inertia and a heel-toe moment of inertia, the combined moment of inertia of the club head about the center of gravity of the club head being 8,000 g cm ２ A larger golf club head.

13. 13. The golf club head of claim 12, wherein the plurality of discrete attachment locations are selected from the group consisting of: a plurality of protrusions, a plurality of recesses, a plurality of apertures, a plurality of notches, a plurality of tabs, a plurality of cutout areas, a plurality of ribs, a plurality of grooves, and a plurality of hooks.

14. The golf club head of claim 13 , wherein the plurality of discrete mounting locations comprises a plurality of threaded apertures configured to receive fasteners.

15. The golf club head of claim 12 , wherein the one or more weights comprise a first weight of between 10 grams and 20 grams.

16. The adjustable weighting system comprises: a first attachment location disposed near the rear end; a second attachment location disposed at a center of the sole; The golf club head of claim 12 , further comprising: a third attachment location disposed near the heel end.

17. 17. The golf club head of claim 16, wherein moving the first weight from the first mounting location to the second mounting location moves the center of gravity of the club head a distance of at least 0.10 inches.

18. 18. The golf club head of claim 17, wherein the center of gravity of the club head is greater than 1.65 inches with the first weight positioned at any of the first mounting location, the second mounting location, and the third mounting location.

19. a depth-to-mass ratio defined as a ratio of the combined moment of inertia to a mass of the first weight; The golf club head of claim 12 , wherein the depth-to-mass ratio is greater than 0.060 inches / grams.

20. The golf club head of claim 12 , wherein the recess comprises a channel extending from near the toe end to near the heel end of the club head.

21. 21. The golf club head of claim 20, wherein the channel depth varies from near the toe end to near the heel end of the club head.

22. 21. The golf club head of claim 20, wherein the channel width varies from near the toe end to near the heel end of the club head.

23. A golf club head, a club head body having a toe end, a heel end opposite the toe end, a crown, a sole opposite the crown, a striking face, a back end opposite the striking face, and a periphery at a junction between the crown and the sole extending from adjacent the heel end to adjacent the toe end; an adjustable weighting system located on the sole, the perimeter, or a combination thereof; The adjustable weighting system comprises: a recess having a rectangular shape and extending from the toe end to the heel end, the recess having a maximum depth of 0.25 inches; a plurality of discrete mounting locations disposed in the recess; Cables and a tensioner disposed within the opening in the sole for increasing or decreasing tension in the cable; one or more weights coupled to the cable, each of the one or more weights has a weight center of gravity and is configured to be coupled to one of the plurality of discrete mounting locations and configured to be movable between the plurality of discrete mounting locations to move a center of gravity of the club head; the one or more weights are positioned such that the weight center of gravity of each of the weights is offset from an exterior contour of the club head by a distance less than 0.125 inches; a combined moment of inertia defined as the sum of a crown-sole moment of inertia and a heel-toe moment of inertia, the combined moment of inertia of the club head about the center of gravity of the club head being 8,000 g cm ２ A larger golf club head.

24. a first attachment location disposed near the toe end; a second attachment location disposed near the heel end; 24. The golf club head of claim 23, further comprising a third mounting location disposed between the first and second mounting locations.

25. 24. The golf club head of claim 23, wherein the tensioner comprises a fastener having a notch for receiving the cable.

26. 24. The golf club head of claim 23, wherein the cable comprises a metallic material selected from the group consisting of steel wire rope, aluminum wire rope, copper wire rope, tungsten wire rope, nickel wire rope, polymer coated steel wire, and silver wire rope.

27. 24. The golf club head of claim 23, wherein the cable comprises a non-metallic material selected from the group consisting of baling twine, parachute cord material, nylon, Kevlar, and polymer tweed.

28. The golf club head of claim 23 , wherein the one or more weights include a through hole configured to accommodate the cable.

29. 24. The golf club head of claim 23, wherein the tensioner is flush with an outer surface of the sole when the cable is at maximum tension.

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