Weight-adjustable club head

Abstract

We provide golf club heads with an adjustable weighting system. [Solution] This specification describes an embodiment of a golf club head comprising an adjustable weighting system having a plurality of discrete mounting positions capable of accepting one or more weights. The golf club head described herein provides the user with the ability to adjust the center of gravity of the club head for adjusting the flight of the ball while maintaining a high moment of inertia and a low rearward center of gravity.

Description

[Technical Field]

[0001] (Cross-reference to related applications) This application claims priority to U.S. Provisional Patent Application No. 62 / 545,770 filed on 15 August 2017 and U.S. Provisional Patent Application No. 62 / 628,803 filed on 9 February 2018, and all the contents disclosed in the said applications are incorporated herein by reference.

[0002] This disclosure relates to a golf club head, more specifically, to a golf club head having an adjustable weighting system. [Background technology]

[0003] Various characteristics of a golf club can affect its performance. For example, the center of gravity and moment of inertia of the golf club head are characteristics that can influence performance. [Overview of the project] [Problems that the invention aims to solve]

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

[0005] Many existing golf club head weighting systems require large, complex internal structures that reduce the club head's moment of inertia and shift its center of gravity upward (towards the crown) and forward (towards the face). In this field, there is a need for a club head that allows the user to adjust the weighting and center of gravity position to influence ball flight (trajectory and / or spin) without negatively impacting the moment of inertia or center of gravity position. [Brief explanation of the drawing]

[0006] [Figure 1] This is a front perspective view of a golf club head. [Figure 2] Figure 1 shows a front view of the golf club head, with the y-axis indicated. [Figure 3] Figure 1 is a top view of the golf club head, showing the x and z axes. [Figure 4] Figure 1 is a side cross-sectional view of a golf club head. [Figure 5] Figure 1 is a bottom view of a golf club head. [Figure 6] This is a rear perspective view of a different golf club head. [Figure 7] Figure 6 is a bottom view of a golf club head. [Figure 8] Figure 6 is a bottom perspective view of another embodiment. [Figure 9] This is a rear view of another golf club head. [Figure 10] Figure 9 is an enlarged perspective view of the rear of a golf club head. [Figure 11] This is a bottom perspective view of another golf club head. [Figure 12] Figure 11 is another bottom perspective view of the golf club head. [Figure 13] Figure 11 is a cross-sectional view of the opening and tensioner of the golf club head. [Figure 14] Figure 11 is a front perspective view of the tensioner on a golf club head. [Figure 15]This is a bottom view of another embodiment of a golf club head. [Figure 16] Figure 15 is a bottom perspective view of the golf club head. [Modes for carrying out the invention]

[0007] Various embodiments of a golf club head having an adjustable weighting system are described herein. The adjustable weighting system includes a plurality of discrete mounting positions that can accept one or more weights. Each weight can be coupled to any of the discrete mounting positions on the club head and is movable between any mounting positions. Thus, this adjustable weighting system allows the user to adjust the weighting and center of gravity of the club head, thereby changing the flight of the ball (i.e., the spin or trajectory of the ball).

[0008] In many embodiments, the adjustable weighting system described herein either protrudes from the external contour of the club head or is minimally recessed from the external contour of the club head. Furthermore, in many embodiments, the adjustable weighting system described herein is positioned near the outer edge of the club head. By positioning the adjustable weighting system in this manner, weighting towards the outer edge and low rear weight placement can be maximized. This maximizes the moment of inertia of the club head with respect to forgiveness for off-center hits, allows the center of gravity of the club head to be positioned low rear, increases the launch angle, and reduces backspin. Thus, the golf club head described herein allows the user to adjust the center of gravity of the club head to adjust the flight of the ball while maintaining optimal design and performance characteristics (high moment of inertia and low rear center of gravity).

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

[0010] Wherever terms such as “first,” “second,” “third,” and “fourth” appear in this specification and the claims, they are used to distinguish similar elements and are not necessarily used to describe a particular order or chronological order. The terms used in this manner are interchangeable as appropriate, and it should be understood that the embodiments described herein may be implemented, for example, in a different order than those described or illustrated herein. Furthermore, the terms “including” and “having,” and their synonyms, are intended to include non-exclusive inclusion, meaning that a process, method, system, article, apparatus or device containing the enumerated elements is not necessarily limited to these elements and may include other elements not expressly enumerated, or other elements inherent in such a process, method, system, article, apparatus or device.

[0011] Where terms such as “left,” “right,” “front,” “rear,” “top,” “bottom,” “up,” and “down” appear in the specification and claims, they are used for descriptive purposes and not necessarily to describe permanent relative positions. The terms used in this manner are interchangeable as appropriate, and it should be understood that embodiments of the apparatus, methods, and / or articles described herein can be implemented in other orientations, for example, those not illustrated or described herein.

[0012] Terms such as “to join,” “to be joined,” “joined,” and “joined” should be interpreted broadly and refer to the joining of two or more elements, mechanically or otherwise. The joining (whether mechanical or otherwise) may last for any period of time, such as permanent, semi-permanent, or momentary.

[0013] Other features and aspects will become apparent by considering the following detailed description and accompanying drawings. Before describing in detail the embodiments disclosed herein, it should be understood that the application of this disclosure is not limited to the component details, embodiments and arrangements described below or illustrated in the drawings. This disclosure can support other embodiments and may be practiced or implemented in various ways. It should be understood that the description of a particular embodiment covers all variations, equivalents, and alternatives that fall within the spirit and scope of this disclosure and is not intended to limit this disclosure. It should also be understood that the expressions and terminology used herein are for illustrative purposes only and should not be considered limiting.

[0014] For the sake of clarity and ease of understanding, and for illustrative purposes only, the following detailed description uses golf club heads 100, 11010, 12010, 13010, and 6810 as examples of woods. Naturally, it should be understood that these woods are presented for the purpose of illustrating one or more embodiments of the adjustable weighting system disclosed herein. However, the embodiments of the adjustable weighting system disclosed herein may be used for any desired wood, iron, hybrid, or other golf club where adjustable weighting is desired. For example, 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] Figures 1 to 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 the heel (or heel end) 22. The body 14 also includes a crown (or top) 26 located opposite the sole (or bottom) 30, and a back (or rear, rear end) 34 located opposite the club face (or face, striking face, striking plate) 38. The club head further includes an edge (or skirt, rear edge) 24 located at the junction or intersection between the crown 26 and the sole 30, extending 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 positioned on the sole 30, the skirt 24, the heel 22, the toe 18, or any combination of these positions.

[0016] The golf club head 100 also includes a hosel 42, which has a hosel shaft 46 (see Figure 2) extending 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). The golfer grips the grip (not shown) 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°. Furthermore, 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 be 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 volume of the club head may be approximately 300 to 400 cc, approximately 325 to 400 cc, approximately 350 to 400 cc, approximately 250 to 400 cc, approximately 250 to 350 cc, or approximately 275 to 375 cc.

[0019] In some embodiments, the club head may be 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°. Furthermore, 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] Multiple grooves (or main grooves) 40 (see Figure 2) are arranged on the clubface 38. The striking face 38 of the clubhead 100 defines a geometric center 140. In some embodiments, the geometric center 140 may be located at the geometric center point of the periphery of the striking face 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 the design impact zone, which can be defined by the area of ​​grooves on the striking face. Alternatively, the geometric center of the striking face may be located according to the definition of a golf governing body such as the United States Golf Association (USGA). For example, the geometric center 140 of the striking face 38 may be determined according to Section 6.1 of the USGA Procedure for Measuring the Flexibility of Golf Club Heads (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 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. This 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 the 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 the 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 passes through the geometric center 140 of the striking face 38, extends from the face 38 of the club head 100 towards the rear end 34, and is perpendicular to the x-axis 10106 and the 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. The xy-plane 10124, xz-plane 10126, and yz-plane 10128 are each perpendicular to one another and intersect at the 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 positioned at an angle corresponding to the loft angle of the clubhead 100 from the loft plane 10102. Furthermore, when viewed from a direction perpendicular to the xy-plane 10124, the x-axis 10106 is positioned at an angle of 60 degrees with respect to the hosel axis 46.

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

[0024] Referring to Figures 2 and 3, the golf club head 100 further includes a centroid (or CG) 50 (see Figures 3, 4, and 5) that defines the origin of a coordinate system including the x-axis 54, y-axis 58, and z-axis 62. The y-axis 58 (see Figures 2 and 4) passes through the centroid 50 of the club head 100, extends 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 positioned at a 30-degree angle from the hosel axis 46 when viewed in a front view (Figure 2). The x-axis 54 (see Figures 3 and 5) passes through the centroid 50 of the club head, extends 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 Figures 3 to 5) passes through the center of gravity 50 of the club head 100, extends from the club face 38 to the rear end 34, and is perpendicular to the x-axis 54 and y-axis 58. The x-axis 54 passes through the head CG 50, extends 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 passes through the head CG 50, extends from the crown (or top) 26 to the sole (or bottom) 30, and is parallel to the y-axis 10104. The z-axis 62 passes through the head CG 50, extends from the club face 38 to the rear end 34, and is parallel to the z-axis 10108.

[0025] As shown in Figure 4, the club head 100 further comprises 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 the 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 positioned at a head CG depth 10130 from the xy plane 10124, measured in a direction perpendicular to the xy plane 10124. In some embodiments, the head CG 50 may be positioned at a head CG depth 10130 from the loft plane 10102, measured in a direction perpendicular to the loft plane 10102. The head CG50 is further positioned at a head CG height 10132, measured perpendicular to the head depth plane 10120. Furthermore, the head CG height 10132 is measured as the offset distance of the head CG50 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 an additional guide in describing the inventions herein, the x-axis 54 and z-axis 62 are positioned to coincide with the numbers on the analog clock in Figure 3. The z-axis 62 extends between 12 o'clock ("12" passing through the clubface 38) and 6 o'clock ("6" passing through the back 34), and the x-axis 54 extends between 3 o'clock ("3" passing through the toe end 18) and 9 o'clock ("9" passing through the heel end 22).

[0027] Various parameters of a golf club head are important in order to achieve desired performance characteristics, such as the moment of inertia of the club head, the position of the club head's center of gravity, and the adjustability of the club head's center of gravity. A higher moment of inertia of the club head increases the club head's forgiveness for off-center hits. When the club head's center of gravity is positioned low and rearward (i.e., towards the sole and rear of the club head), beneficially, the moment of inertia increases, backspin decreases, and the launch angle of the golf ball at impact increases. Adjustability of the club head's center of gravity allows the end user to adjust the club head's trajectory as desired. Each of these parameters is important in the design of a golf club in order to achieve desired or optimal performance characteristics. However, there are design challenges in incorporating all of the above parameters of a golf club head because many existing center of gravity adjustment mechanisms either (1) reduce the moment of inertia of the club head, and / or (2) move the center of gravity of the club head upward and forward due to internal weight structures and / or large weight structures and / or suboptimal placement of weight structures.

[0028] The embodiments of the golf club head described below include an adjustable weighting system while maintaining or preventing a significant reduction in the moment of inertia of the club head and arranging the center of gravity of the club head at the lower rear. For example, many of the following embodiments provide the user with adjustability of the flight and / or trajectory of the ball, and, like club heads lacking an adjustable weighting system, describe a low-profile adjustable weighting system and / or an optimally arranged adjustable weighting system for maintaining a high moment of inertia of the club head and maintaining the center of gravity position of the club head at the lower rear. By maintaining a high moment of inertia of the club head around the club head CG, the tolerance for off-center strikes is increased, and by maintaining a high moment of inertia of the club head around the hosel axis, the rotational stability during the swing is increased. Further, by maintaining the center of gravity of the club head at the lower rear, the moment of inertia of the club head around the head CG is advantageously increased and the backspin is reduced.

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

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

[0031] Furthermore, the moment of inertia I of the club head around the y-axis, including the adjustable weighting system described herein. yy It weighs 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 It may be larger. In some embodiments, the moment of inertia I of the club head about the y-axis is provided with an adjustable weighting system as described herein. yy It ranges from 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 That is the case.

[0032] Furthermore, the moment of inertia I of the club head around the hosel axis, with the adjustable weighting system described herein. hh It weighs 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 Larger, or 10,000 g·cm 2 It may be larger. In some embodiments, the moment of inertia I of the club head around the hosel axis, comprising the adjustable weighting system described herein. hh It ranges from 7500 to 10000 g·cm 2 8000 to 10000 g·cm 2 8500 to 10000 g·cm 2 , or 9000 to 10000 g·cm 2 That is the case.

[0033] Referring to relation 1 below, many embodiments of a club head with an adjustable weighting system have a combined moment of inertia (MOI) around the head CG, defined as the sum of the moment of inertia around the x-axis and the moment of inertia around the y-axis. CG ) is equipped with.

[0034]

number

[0035] The combined moment of inertia MOI about the head center of gravity CG is 7600 g·cm 2 greater than, 7700 g·cm 2 greater than, 7800 g·cm 2 greater than, 7900 g·cm 2 greater than, 8000 g·cm 2 greater than, 8100 g·cm 2 greater than, 8200 g·cm 2 greater than, 8300 g·cm 2 greater than, 8400 g·cm 2 greater than, 8500 g·cm 2 greater than, 8600 g·cm 2 greater than, 8700 g·cm 2 greater than, 8800 g·cm 2 greater than, 8900 g·cm 2 greater than, 9000 g·cm 2 greater than, 9100 g·cm 2 greater than, 9200 g·cm 2 greater than, or 9300 g·cm 2 or greater. For example, the combined moment of inertia MOI about the club head center of gravity CG is from 7700 to 9500 g·cm 2 from 7800 to 9500 g·cm 2 from 7900 to 9500 g·cm 2 from 8000 to 9500 g·cm 2 from 8100 to 9500 g·cm 2 from 8200 to 9500 g·cm 2 or from 8300 to 9500 g·cm 2 may be.

[0036] Referring to the following relational expression 2, many embodiments of club heads with an adjustable weighting system have a combined moment of inertia (MOI CG-H ) about the head CG and hosel 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.

[0037]

Number

[0038] The combined moment of inertia MOI around the head CG and hosel CG-H is greater than 14,800 g·cm 2 greater than 14,900 g·cm 2 greater than 15,000 g·cm 2 greater than 15,100 g·cm 2 greater than 15,200 g·cm 2 greater than 15,300 g·cm 2 greater than 15,400 g·cm 2 greater than 15,500 g·cm 2 greater than 15,600 g·cm 2 greater than 15,700 g·cm 2 greater than 15,800 g·cm 2 greater than 15,900 g·cm 2 greater than 16,000 g·cm 2 greater than 16,200 g·cm 2 greater than 16,400 g·cm 2 greater than 16,600 g·cm 2 greater than 16,800 g·cm 2 greater than 17,000 g·cm 2 greater than 17,200 g·cm 2 greater than 17,400 g·cm 2 greater than 17,600 g·cm 2 greater than 17,800 g·cm 2 greater than 18,000 g·cm 2 greater than 18,400 g·cm 2 greater than 18,800 g·cm 2 greater than 19,000 g·cm 2 greater than 19,200 g·cm 2 greater than or may be 19,400 g·cm 2 Greater is also acceptable. For example, the combined moment of inertia MOI around the head CG and hosel CG-HIt ranges from 15,000 to 19,500 g·cm². 2 15,000 to 19,000 g·cm 2 15,000 to 18,000 g·cm 2 , 16,000 to 19,500 g·cm 2 16,000 to 19,000 g·cm 2 , or 16,000 to 18,000 g·cm 2 This is acceptable. In these embodiments, a club head with an adjustable weighting system having a volume of 425 to 450 cubic centimeters (cc) is provided, and the combined moment of inertia MOI around the head CG and hosel is... CG-H It is 15000g·cm 2 In club heads with an adjustable weighting system that is larger and has a volume of 450 to 500 cubic centimeters (cc), the combined moment of inertia MOI around the head CG and hosel is greater. CG-H It is 17000g·cm 2 Bigger is better.

[0039] The head CG depth 10130 of a club head having an adjustable weighting system as 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 having 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] Furthermore, a club head having an adjustable weighting system as described herein may have a head CG height 10132 located below the head depth plane 10120 (i.e., located between the head depth plane 10120 and the sole 30 of the club head). Furthermore, the head CG height 10132 of a club head having an adjustable weighting system as described herein may be located within 0.10 inches, 0.09 inches, 0.08 inches, 0.07 inches, 0.06 inches, 0.05 inches, or 0.04 inches of the head depth plane 10120 toward the crown 26 or sole 30 of the club head.

[0041] In many embodiments, the adjustable weighting system includes one or more weights that can be repositioned at multiple discrete portions or mounting positions on the club head to adjust the position of the head CG. By adjusting the position of the head CG using the adjustable weighting system described herein, it is possible to influence the ball trajectory and / or the 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 have two or more discrete mounting positions for receiving one or more weights. In many embodiments, the adjustable weighting system includes two, three, four, or five discrete mounting positions. For example, in an embodiment of an adjustable weighting system having two discrete mounting positions, these mounting positions may include a first mounting position positioned toward the rear end 34 and toe 18 of the club head, and a second mounting position positioned toward the rear end 34 and heel 22. In these embodiments, the distance between the first and second mounting positions 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 and second mounting positions 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 an embodiment of an adjustable weighting system having three discrete mounting positions (e.g., Figure 5), these mounting positions may include a first mounting position A positioned toward the rear end 34 and the toe 18, a second mounting position C positioned toward the rear end 34 and the heel 22, and a third mounting position B. In these embodiments, the third mounting position B may be positioned toward the center and the rear end 34 of the club head, generally aligned with the head depth axis 10122, or adjacent to the head depth axis 10122, and / or positioned between the first and second mounting positions A and C. In these embodiments, the distance between adjacent mounting positions (e.g., the distance between the first mounting position A and the third mounting position B, or the distance between the second mounting position C and the third mounting position 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, and greater than 1.0 inch. For example, the distance between adjacent mounting positions (e.g., the distance between a first mounting position A and a third mounting position B, or the distance between a second mounting position C and a third mounting position B) may 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 positions that is more than one, such as two, three, four, five, six, seven, eight, or more. In embodiments where the adjustable weighting system includes four discrete mounting positions, the distance between adjacent mounting positions 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 positions, the distance between adjacent mounting positions 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 positions, the distance between adjacent mounting positions 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 an embodiment including four discrete mounting positions, the distance between adjacent mounting positions 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] Multiple discrete mounting positions of a club head equipped with an adjustable weighting system described herein may include a variety of features, including projections, 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 may be made of the same material as the body or of a material having a lower density than the body, so that the fasteners do not contribute to the adjustable weighting characteristics of the club head. Furthermore, in some embodiments, the openings, recesses or ports may 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 a significant internal structure to secure one or more weights within the ports or recesses.

[0046] The adjustable weighting system further comprises one or more weights that can be positioned at a plurality of discrete mounting locations. One or more weights may have a height 10152 measured from the crown to the sole parallel to the y-axis 58 when the weight is attached to one or more mounting locations, a width 10154 measured from the heel to the toe parallel to the x-axis 54 when the weight is attached to one or more mounting locations, and a depth 10156 measured in the front-to-back direction parallel to the z-axis 62 when the weight is attached to 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 inch, 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, one or more weights may have a surface area that contacts the body of the club head when attached to any of the mounting positions. In many embodiments, the surface area of ​​the weights that contact the club head is 0.75 inches. 2 Less than 0.7 inches 2 Less than 0.65 inches 2 Less than 0.6 inches 2 Less than 0.55 inches 2 Less than 0.5 inches 2 Less than 0.45 inches 2 Less than 0.4 inches 2 Less than 0.35 inches 2 Less than 0.3 inches 2 Less than, or 0.25 inches 2 It can be less than [amount].

[0047] In many embodiments, the adjustable weighting system includes a first weight W that can be positioned 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 can be positioned at a plurality of discrete mounting locations on the club head. In these embodiments, each of the plurality of weights may be positioned at a different discrete mounting location on the club head. Furthermore, in these embodiments, each of the plurality of weights may be removed and replaced or repositioned at a different discrete mounting location on the club head. The embodiments of the adjustable weighting system described herein include up to five weights, but 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, third weight, fourth weight, and / or 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 of 6 to 50 grams, 10 to 50 grams, 15 to 50 grams, 20 to 50 grams, 15 to 40 grams, 20 to 40 grams, 25 to 35 grams, 10 to 25 grams, 15 to 25 grams, 10 to 20 grams, or 15 to 20 grams. The remaining weights (for example, the second weight, third weight, fourth weight, and / or 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 placed at any of the discrete mounting positions. In embodiments having an adjustable weighting system including two discrete mounting positions, the first weight may be placed at a first mounting position located near the toe 18, or at a second mounting position located near the heel 22. In these embodiments, moving the first weight from the first mounting position to the second mounting position causes the head CG to move toward the heel 22, and moving the first weight from the second mounting position to the first mounting position causes the head CG to move toward the toe 18. In these embodiments, the remaining mounting positions may be without weights, or they may have additional weights (e.g., second weights).

[0050] In embodiments having an adjustable weighting system with three discrete mounting positions, a first weight W may be positioned at a third mounting position B located in the center, thereby generating a neutral head position CG. The first weight may be moved from the third mounting position B to a first mounting position A located toward the toe 18, thereby moving the head CG 50 a certain distance toward the toe 18. The first weight W may be moved from the third mounting position B to a second mounting position C located toward the heel 22, thereby moving the head CG 50 a certain distance toward the heel 22. In these embodiments, the remaining positions may be without weights, or they may have additional weights (e.g., second and / or third weights).

[0051] By moving the first weight W from the mounting position closest to the toe 18 to the mounting position closest to the heel 22, the head CG50 can be moved by 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 parallel to the x-axis 54. For example, in many embodiments, by moving the first weight W from the mounting position closest to the toe 18 to the mounting position closest to the heel 22, the head CG50 can be moved by 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 CG50 toward the toe 18 can produce a fade or correct a hook. Conversely, moving the head CG50 toward the heel 22 can produce a draw or correct a slice. In the embodiment of the adjustable weighting system described below, moving the head CG50 by 0.10 inches to 0.30 inches in a direction parallel to the x-axis 54 can result in a change in shot curve from 4.6 yards to 13.9 yards.

[0053] Other embodiments may include one or more discrete mounting positions positioned toward the striking face 38 of the club head 100. In these embodiments, the moment of inertia of the club head around the head CG MOL is increased by moving one or more weights from mounting positions near the striking face 38 to mounting positions near the rear end 34 of the club head 100. CG This can increase the dynamic loft or launch angle of the golf ball. Conversely, by moving one or more weights from a mounting position near the rear end 34 to a mounting position near the striking face 38 of the club head 100, the dynamic loft or launch angle of the golf ball can be decreased.

[0054] Embodiments of clubheads having an adjustable weighting system described herein maximize the head CG depth 10130 and the moment of inertia of the clubhead (or minimize the reduction in head CG depth 10130 and the moment of inertia of the clubhead that is generally associated with introducing adjustability compared to a non-adjustable clubhead). In many embodiments, the maximization of the head CG depth and the moment of inertia of the clubhead is achieved by a first adjustable weight having a relatively light mass, which not only increases the design efficiency for maintaining the performance characteristics of the clubhead (e.g., forgiveness, low backspin, high launch) but also allows the user to adjust the ball spin and / or trajectory.

[0055] Referring to the following relation 3, a club head with an adjustable weighting system has a first weight W m The club head has a depth-to-mass ratio of 10130 to its mass. In many embodiments, the depth-to-mass ratio of the club head may be greater than 0.060 inches / gram, greater than 0.070 inches / gram, greater than 0.080 inches / gram, greater than 0.090 inches / gram, greater than 0.100 inches / gram, greater than 0.110 inches / gram, greater than 0.120 inches / gram, or greater than 0.130 inches / gram. In some embodiments, the depth-to-mass ratio may be 0.070 to 0.13 inches / gram, 0.080 to 0.13 inches / gram, 0.090 to 0.13 inches / gram, 0.070 to 0.11 inches / gram, 0.080 to 0.11 inches / gram, or 0.090 to 0.11 inches / 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, 12 and 20 grams, 14 and 20 grams, 16 and 20 grams, 10 and 18 grams, 12 and 18 grams, or 14 and 18 grams.

[0056]

number

[0057] Referring to the following relational equation 4, a club head with an adjustable weighting system has a first weight W m The combined moment of inertia MOI of the head CG relative to its mass. CG It may have a first inertia mass ratio defined as . In many embodiments, the first inertia mass ratio is 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, or 550cm 2 It can be larger. In some embodiments, the first inertia mass ratio is 400 to 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 between 10 and 20 grams, 12 and 20 grams, 14 and 20 grams, 16 and 20 grams, 10 and 18 grams, 12 and 18 grams, or 14 and 18 grams.

[0058]

number

[0059] Embodiments of clubheads having an adjustable weighting system described herein maximize the total movement of the head CG, which can be achieved by adjusting one or more weights to a plurality of discrete mounting positions. In many embodiments, the maximization of the total movement of the head CG is achieved by a first adjustable weight having a relatively light mass, which not only increases the design efficiency for maintaining clubhead performance characteristics (e.g., forgiveness, low backspin, high launch) but also allows the user to adjust ball spin and / or trajectory.

[0060] Referring to relation 5 below, a club head having an adjustable weighting system has a head-CG-mass ratio defined as the total displacement of the head CG or the maximum displacement of the head CG relative to the mass of the first weight. In many embodiments, the head-CG-mass ratio may be greater than 0.008 inches / gram, greater than 0.009 inches / gram, greater than 0.010 inches / gram, greater than 0.011 inches / gram, greater than 0.012 inches / gram, greater than 0.013 inches / gram, greater than 0.014 inches / gram, or greater than 0.015 inches / gram. In some embodiments, the head-CG-mass ratio may be 0.008 to 0.015 inches / gram, 0.009 to 0.015 inches / gram, 0.010 to 0.015 inches / gram, 0.008 to 0.013 inches / gram, 0.009 to 0.013 inches / gram, or 0.010 to 0.013 inches / 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 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.

[0061]

number

[0062] One or more weights in the adjustable weighting system are weights CG10134. In many embodiments, the weights CG are positioned near the rear perimeter (or skirt) 10136 of the clubhead when viewed in a top or bottom view (Figure 5), and at a maximum distance 10138 from the geometric center 140 of the striking face 38. By positioning the weights CG10134 near the rear perimeter 10136 of the clubhead 100, or away from the striking face 38, the perimeter weight and the moment of inertia of the clubhead can be increased, thereby increasing the forgiveness of the clubhead for off-center hits compared to when the adjustable weights are positioned near the striking face. Furthermore, by positioning the weights CG10134 near the rear perimeter 10136, or away from the striking face 38, the position of the head CG can be lower and further back, thereby increasing the moment of inertia of the clubhead and reducing backspin compared to when the adjustable weights are positioned near the striking face.

[0063] In these embodiments, with the weights positioned at one or more of a plurality of discrete mounting positions on the club head 100, the weight CG 10134 of one or more weights is positioned at a distance of 10142 from the rear periphery 10136 of the club head 100. The distance 10142 can be measured as the projected distance from the weight CG to the periphery 10136 when the club head is viewed in a bottom view perpendicular to the xz plane 10126, with the weights positioned at one or more of the plurality of discrete mounting positions on the club head 100. Furthermore, the distance 10142 can be measured in a direction parallel to the xz plane 10126, with the weights positioned at one or more of the plurality of discrete mounting positions on the club head 100. For example, one or more weights, weight CG10134, may be positioned 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 from the rear edge 10136 of the club head 100. As a further example, one or more weights, weight CG10134, may be positioned between 0.10 and 0.50 inches, 0.25 and 0.5 inches, 0.10 and 0.25 inches, 0.10 and 0.35 inches, or 0.10 and 0.45 inches from the rear edge 10136 of the club head 100.

[0064] Furthermore, in these embodiments, the weights CG10134 of one or more weights are positioned at a distance 10138 from the geometric center 140 of the striking face 38 of the club head 100, with the weights positioned at one or more of a plurality of discrete mounting positions on the club head 100. For example, the weights CG10134 of one or more weights may be positioned at 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, one or more weights CG10134 may be positioned at a distance 10138 from the geometric center 140 of the striking face 38 at 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. By positioning the weights CG10134 away from the geometric center 140 of the striking face 38, the periphery weight and the moment of inertia of the clubhead can be increased, thereby increasing the forgiveness of the clubhead for off-center hits compared to when the adjustable weights are positioned near the striking face. Furthermore, by positioning weight CG10134 away from the geometric center 140 of the striking face 38, the head CG position can be made lower and further back, thereby increasing the moment of inertia of the club head and reducing backspin compared to when the adjustable weight is placed near the striking face.

[0065] In many embodiments, the weight CG10134 protrudes from the outer contour (or outer surface) 10146 of the sole 30, is coplanar with the outer contour 10146 of the sole 30, and / or is positioned minimally embedded against the outer contour 10146 of the sole 30. By positioning the weight CG10134 coplanar with the outer contour 10146 or outside the outer contour 10146 so as to be minimally embedded against the outer contour 10146 of the sole 30, the amount of structural support material required to accommodate one or more weights can be reduced, thereby maintaining a low-profile adjustable weighting system. Therefore, by positioning the weight CG10134 coplanar with the outer contour 10146 or outside the outer contour 10146 so that it is minimally inserted into the outer contour 10146 of the sole 30, the peripheral weight and the moment of inertia of the club head can be increased, thereby increasing the forgiveness of the club head for off-center hits compared to when the adjustable weight is located inside or embedded in the club head. Furthermore, by positioning the weight CG10134 coplanar with the outer contour 10146 or outside the outer contour 10146 so that it is minimally inserted into the outer contour 10146 of the sole 30, the position of the head CG can be lower and further back, thereby increasing the moment of inertia of the club head and reducing backspin compared to when the adjustable weight is located inside or embedded in the club head.

[0066] In these embodiments, the weights CG10134 of one or more weights are positioned at a distance 10148 from the outer contour 10146 of the sole 30, with the weights positioned at one or more of a plurality of discrete mounting positions on the club head 100, and the distance 10148 is measured in a direction parallel to the y-axis 58. For example, the weights CG10134 of 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 weights CG10134 of one or more weights protrude only 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 CG10134 may be inserted into 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 CG10134 of one or more weights may be inserted into the outer contour 10146 of the sole 30 by a distance 10148 between 0.05 and 0.15 inches, 0.05 and 0.125 inches, 0.05 and 0.15 inches, 0.10 and 0.15 inches, 0.10 and 0.125 inches, or between 0.10 and 0.15 inches.

[0067] Figures 6 and 7 show a club head 11010 similar to the club head 100 described above. The club head 11010, having a club head body 11014, includes an adjustable weighting system 11066 located on the sole 11030, which is adjustable by the 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 conditions. The club head 11010 is similar to the club head 100 in many respects, and similar or identical numbers refer to similar or identical elements. Because the adjustable weighting system 11066 is a low-profile system, it does not significantly move or change the MOI of the club head 11010 compared to a club head without the adjustable weighting system 11066. Furthermore, the low-profile adjustable weighting system 11066 ensures that the 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 rear position. The center of gravity position and MOI of the club head 11010 may be the same as or identical to the center of gravity position and MOI of the club head 100 described above.

[0068] Referring to Figures 6 and 7, the adjustable weighting system 11066 may include a recess 11080. The recess 11080 comprises a concave surface 11081 configured to include a plurality of discrete mounting positions. The plurality of discrete mounting positions may comprise a variety of features, including fastener-receiving projections, openings, recesses or ports, notches or tabs or cutout areas, 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 comprising three discrete mounting positions 11070A, 11070B, and 11070C. The three discrete mounting positions comprise features 11070A, 11070B, and 11070C. Features 11070A, 11070B, and 11070C may comprise any of the features described above. The mounting positions and corresponding features 11070A, 11070B, and 11070C are configured to receive one or more weights 11082.

[0069] Referring again to Figures 6 and 7, the recess 11080 defines a groove, channel, and / or concave track, which extends along the sole (or bottom) 11030 of the club head 11010, adjacent to the trailing edge 11072 or rear periphery 10136, and extends in a substantially arch shape from the toe (or toe end) 11018 to the heel (or heel end) 11020. The recess 11080 substantially follows the contour of the trailing edge 11072, although the recess 11080 may be slightly offset from the trailing edge 11072 or rear periphery 10136 between the heel end 11022 and the toe end 11018. The recess 11080 includes a concave surface 11081 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, the second wall 11084 facing the first wall 11083 and close to the trailing edge 11072 or rear periphery 10136. Generally, the concave surface 11081 extends substantially parallel to the sole 11030 of the club head 11010, while the first wall 11083 and the second wall 11084 extend substantially 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 concave surface 11081 to the sole 11030 in a direction parallel to the concave surface 11081. In the illustrated embodiment, the recess 11080 has varying depths, being deeper in some areas than in others (for example, it may have a continuously or intermittently changing depth). For example, in some embodiments, the recess 11080 may have a depth that deepens, shallows, and / or is constant along the length from the toe end 11018 to the heel end 11022. Thus, when the weight 11082 is attached 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 attached to the club head 11010 in another area of ​​the recess 11080, a portion of the weight 11082 may protrude outward from the wall 11083. As shown in Figures 6 to 8, the recess 11080 comprises 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 along or near the rear end 11034, between the heel end 11022 and the toe end 11022. Referring to Figure 6, the depth of the first region 11077 of the recess 11080 (and similarly, the depth of the second region 11076) is smaller than the depth of the third region. Therefore, the depth of the recess 11080 increases from the first and second regions 11077, 11076 toward the third region 11078, the third region 11078 having a constant depth greater than that of the first and second regions 11077, 11076. In this exemplary embodiment, when the weight 11082 is coupled to the third region 11078, it is concealed by the first wall 11083 (as can be seen, for example, from the view along the y-axis 58 in Figure 2), and in the first and second regions 11077, 11076, it may be at least partially exposed or at least partially protruding from the contour of the sole 11030.In other embodiments, the first region 11077, the second region 11076, and the third region 11078 may have a certain depth, and as a result, when the weight 11082 is coupled to any of the first, second, and / or third regions 11077, 11076, and 11078, the weight 11082 is hidden by the wall 11083. In other embodiments, the recess 11080 includes regions of a different number and position than those shown. For example, in some embodiments, the recess 11080 may include two or more regions to which the weight 11082 is hidden when the weight 11082 is coupled. For example, the recess 11080 may comprise one, two, three, four, five, six, seven, or eight regions.

[0071] In many embodiments, the recess 11080 has a shallow depth to ensure that the adjustable weighting system 11066 has a 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. Furthermore, 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 variety of widths. In some embodiments, the width of the first region 11077 increases from the toe end 11018 toward the center or third region 11078, the width of the second region 11076 increases from the heel end 11022 toward the center and / or third region 11078, and the width of the third region 11078 is a constant width smaller than the average width of the first and / or second regions 11077 and 11076. In other embodiments shown in Figures 6 to 8, the width of the recess 11080 may increase from the center or third region 11078 toward the first region 11077 and 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 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 less than 0.2 inches.In other embodiments, the width may vary between 0.1 and 0.5 inches, 0.3 and 0.7 inches, 0.5 and 0.9 inches, 0.7 and 1.1 inches, 0.9 and 1.3 inches, 1.1 and 1.5 inches, 1.3 and 1.7 inches, or 1.5 and 2.0 inches.

[0072] Referring again to Figures 6 and 7, the recess 11080 may include one or more features 11070 that define one or more discrete mounting positions for securing the weight 11082 to the club head 11010. Unlike other adjustable weighting systems, the club head 11010 with one or more discrete mounting positions allows the weight to be attached at any position, an infinite number of positions, or an unlimited number of positions on the club head. Referring again to Figures 6 and 7, in the illustrated embodiment, the recess 11080 may include three features or mounting positions 11070A, B, and C. Features 11070A, B, and C are shown as openings configured to receive screw fasteners 11085. The screw fasteners 11085 may be made of a material having a density less than or equal to that of the club head 11010. In other embodiments, features 11070A, B, C may be projections, openings, recesses, ports, notches, tabs, cutout areas, ribs, grooves, pegs, hooks, magnets, programmable magnets, or any other suitable mounting means capable of receiving fasteners. In other embodiments, the recess 11080 may comprise one, two, three, four, five, six, seven, eight, nine, or ten features 11070.

[0073] As shown in the figure, features 11070A, B, and C are positioned within the recess 11080 along the concave surface 11081, so that one or more weights 11082 may be releasably or detachably bonded to the club head 11010 along the recess 11080. More specifically, the first feature 11070A is positioned along the first region 11077 of the recess 11080 near the toe end 11018, the second feature 11070C is positioned along the second region 11076 of the recess near the heel end 11022, and the third feature 11070B is positioned along the 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 may be located on the first wall 11083, the second wall 11084, and / or the concave surface 11081 of the recess 11080.

[0074] Continuing to refer to Figures 6 to 8, the weight 11082 may have a substantially trapezoidal shape. In other embodiments, the weight 11082 may have a circular, elliptical, triangular, trapezoidal, polygonal, or any other suitable shape configured to fit into the recess 11080. In the illustrated embodiment, the adjustable weighting system 11066 comprises one weight 11082 that is detachably bonded to the features 11070A, B, C. In other embodiments, the adjustable weighting system 11066 may comprise any number of weights 11082 corresponding to the number of features 11070A, B, C. In other embodiments, the adjustable weighting system 11066 may comprise more or fewer weights 11082 than the number of features 11070A, B, C. For example, the adjustable weighting system 11066 may have one, two, three, four, five, six, seven, eight, nine, or ten weights 11082.

[0075] In the illustrated embodiment, the weight 11082 has an opening that extends completely through the weight 11082, and this opening is sized and configured to receive a threaded fastener or screw fastener 11085. The screw fastener 11085 is screwed through the weight 11082 into the corresponding features 11070A, B, C, in this way the weight 11082 can be fixed into the recess 11080. In some embodiments, the weight 11082 may have a recess or insert for receiving the top of the screw fastener 11085, so that the screw fastener 11085 can be coplanar with the outer portion of the weight 11082. In other embodiments, the weight 11082 may be configured to be coupled to features 11070A, B, C by friction fit, snap fit mechanism, set screw, or any other suitable structure.

[0076] In embodiments where 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, and as a result, the weights 11082 may have different masses. Furthermore, in some embodiments, the weights 11082 may contain different materials, and as a result, they may have different masses. For example, one weight 11082 may contain a high-density material such as tungsten, and the remaining weights 11082 may contain a low-density material such as polyurethane or another plastic. In other embodiments, the weights 11082 may contain the same or different materials and have different sizes or volumes, and as a result, they may have different masses. For example, one weight 11082 may have a larger volume than the remaining weights 11082. In some embodiments, each of the weights 11082 may have different volumes from each other, and as a result, they may have different masses. In some embodiments, the weights 11082 may differ from each other in both volume and material. In some embodiments, one of the structures to which 11082 is attached is not a weight, but rather a lightweight (e.g., lightweight plastic) cover that snaps into or otherwise joins one of the features 11070A, B, or C.

[0077] In some embodiments, the weight 11082 may vary between 0.1 and 50 g. For example, in embodiments having multiple weights 11082, one or more weights 11082 may vary between 0 and 10 g, between 10 and 20 g, between 20 and 30 g, between 30 and 40 g, or 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, and fifth 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 a mass of 1g, 2g, 3g, 4g, 5g, 6g, 7g, 8g, 9g, or 10g. In other embodiments, any number of weights may have the same mass, or any number of weights may have varying masses between 0.1g and 50g.

[0078] Continuing to refer to Figure 6, in the illustrated embodiment, one of the features 11070A, B, and C may accept the weight 11082, while the remaining features 11070A, B, and C may be empty and uncovered, have no weight, or be covered with another material or structure. In other embodiments, such as those shown in Figure 7, each of the features 11070A, B, and C may accept the weight 11082. In some embodiments, one or more features 11070A, B, and C may accept the weight 11082. In some embodiments, one or more features 11070A, B, and C do not extend beyond the outline of the club head 11010, and as a result, even if the features 11070A, B, and C remain empty and uncovered, the features 11070A, B, and C and / or the recess 11080 do not interfere with or obstruct the golfer's swing.

[0079] To achieve a desired center of gravity position and / or moment of inertia and / or heel / toe bias of the club head 11010, weights 11082 may be strategically placed in features 11070A, B, and C. For example, in some embodiments, heavier weights 11082 are placed in feature 11070B, located between the toe end 11018 and the heel end 11022, while lighter weights are placed in features 11070A and 11070C, at the toe end 11018 and the heel end 11022. This placement of weights 11082 causes the center of gravity to shift towards the rear end 11034 of the club head 11010 while keeping it in the center. In some embodiments, a heavier weight 11082 may be located at feature 11070C at the heel end 11022, and a lighter weight 11082 may be located at features 6270A, B near the toe end 11018 and in the center between the toe end 6318 and the heel end 6322. This arrangement of weights 11082 allows the center of gravity of the club head 11010 to be shifted toward the heel end 11022. In some embodiments, a heavier weight 11082 may be located at feature 11070A at the toe (or toe end) 11018, and a lighter weight 11082 may be located at feature 6270C at the heel end 11022, and at feature 11070B located between the toe end 11018 and the heel end 11022. This arrangement of weights 11082 allows the center of gravity of the club head 11010 to be shifted toward the toe end 11018. In many embodiments, one or more of the features 11070A, B, and C may be of equal size and shape, thereby allowing one weight to be used interchangeably for each of the features 11070A, B, and C. In some embodiments, one or more of the features 11070A, B, and C may have different sizes and shapes, thereby allowing each feature 11070A, B, and C to have a corresponding weight 11082 or a set of weights 11082.Furthermore, by adjusting the position of weight 11082 in features 11070 A, B, and C, it is also possible to influence the spin imparted to the ball after impact.

[0080] Referring to Figure 8, in some embodiments, the club head 11010 may further include a contoured recess 11031 located in the sole 11030. The contoured recess 11031 may have a greater height (i.e., a smaller depth) than the recess 11080, which has a plurality of discrete mounting positions. 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 significantly reduces the moment of inertia of the club head and maintains or prevents a low rearward club head center of gravity position compared to a club head without an adjustable weighting system. The adjustable weighting system 11066 of the golf club head 11010 maintains a high moment of inertia of the club head and a low rearward club head CG position due to the low profile of the weighting system and the positioning of one or more weights at the periphery. The club head 11010 having the adjustable weighting system 11066 may have the same or identical parameters and measurements as the club head 100 described above.

[0082] Figures 9 and 10 show a club head 12010 similar to the club head 100 described above. The club head 12010, having a club head body 12014, includes an adjustable weighting system 12066 that is adjusted by the end user to change the center of gravity, and / or moment of inertia, and / or heel / toe bias of the club head 12010 in order to achieve desired performance characteristics (e.g., forgiveness, spin, trajectory) under various conditions. The club head 12010 may be similar in many respects to the club heads 100 and 11010, where similar or identical numbers refer to similar or identical elements. Because the adjustable weighting system 12066 is a low-profile system, it does not significantly move or change the MOI of the club head 12010 compared to a club head without the adjustable weighting system 12066. Furthermore, the low-profile adjustable weighting system 12066 ensures that the movement of the CG of the clubhead 12010 occurs primarily in the direction from the heel end 12022 to the toe end 12018, maintaining the overall CG of the clubhead 12010 in a low rearward position. The center of gravity position and MOI of the clubhead 12010 may be similar to or identical to the center of gravity position and MOI of the clubheads 100 and 11010 described above.

[0083] Referring to Figures 9 and 10, the adjustable weighting system 12066 may include a channel or recess 12013 located on the sole 12030 or trailing edge 12072 of the club head 12010. The recess 12013 may include a plurality of discrete mounting positions. The plurality of discrete mounting positions may include a variety of features, including projections, openings, recesses or ports, notches or tabs or cutout areas, ribs or grooves, pegs, hooks, magnets, programmable magnets, or any other suitable mounting means, that can accept fasteners. In the illustrated embodiment, the adjustable weighting system 12066 includes three discrete mounting positions. The three discrete mounting positions include features 12070A, 12070B, and 12070C. Features 12070A, 12070B, and 12070C may include any of the features described above. The mounting positions and corresponding features 12070A, 12070B, and 12070C are configured to receive one or more weights 12082.

[0084] In some embodiments, the recess 12080 defines a groove, channel, and / or concave track, which extends within and along the skirt (or trailing edge) 12072 or rear periphery 10136 and extends in a substantially arc 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 (Figure 9), a second surface 12074 (Figures 9 and 10) located opposite the first surface 12073, and a third surface 12075 (Figures 9 and 10) extending perpendicularly between the first surface 12073 and the second surface 12074. In many embodiments, the first surface 12073 comprises the upper wall of the channel 12013, the second surface 12074 comprises the lower wall of the channel 12013, and the third surface 12075 comprises the 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. Furthermore, in some embodiments, the first and second surfaces 12073 and 12074 of the recess 12080 extend in a direction substantially perpendicular to the loft plane of the club head 12010, and the third surface 12075 of the recess 12080 extends in a direction substantially parallel to the loft plane of the club head 12010. The channel 12013 is further partially defined by an additional end face 12079 that directly intersects the first surface 12073, the second surface 12074, and the third surface 12075. The end face 12079 may provide additional support and / or provide a contact area or edge to which the weight 12082 can make contact. In some embodiments, the end face 12079 may make the weight 12082 appear flush with the outer surface 12090 of the club head. A flush surface can improve the characteristics of the airflow during the 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 varying depths, being deeper in some areas than others (for example, it may have a continuously or intermittently changing depth). In other embodiments, the depth of the channel 12013 may have a depth that increases, decreases, and / or is constant along the 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 be flush-fitted in the channel 12013 and / or concealed by the first and / or second surfaces 12073, 12074. When weight 12082 is coupled to clubhead 12010 in another region of channel 12013, a portion of weight 12082 may protrude beyond the first and / or second surfaces 12073, 12074. In other embodiments, weight 12082 may be recessed within channel 12013, flush with channel 12013, or protrude beyond channel 12013 at any position.

[0086] As shown in Figure 9, the channel 12013 may comprise a first region 12077 located at the toe end 12018 of the club head 12010, a second region 12076 located at the heel end 12022 of the club head 12010, and a third region 12078 positioned along the rear (or rear 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 trailing edge 12072. In other embodiments, any of the first, second, and / or third regions 12077, 12076, and / or 12078 may be parallel and / or inclined with respect to the contour of the trailing edge 12072. In one example shown in Figure 9, the first region 12077 and the second region 12076 may be inclined upward with respect to the trailing edge 12072 toward the third region 12078, and the third region 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 (and similarly the second region 12076) of the channel 12013 may have a shallow depth, and as a result, when the weight 12082 is attached to the first region 12077, a portion of the weight 12082 protrudes beyond the first surface 12073 and the second surface 12074. However, thanks to the end face 12079, the weight 12082 may appear flush with the rest of the sole 12030 of the club head 12010, the toe end 12018, or the heel end 12022. In contrast, the third region 12078 may have a greater depth, and as a result, when the weight 12082 is attached to the third region 12078, the weight 12082 is hidden by the first surface 12073 and the second surface 12074 (for example, when viewed along the y-axis 58 in Figure 2). In other embodiments, the depths of the first, second, and third regions 12077, 12076, and 12078 may be the same. Furthermore, the transition regions between the first and third regions 12077, 1278 and between the second and third regions 12076, 12078 may be shallower than the depths of the first, second, and third regions 12077, 12076, and 12078. In other embodiments, channel 12013 may include a different number and location of regions than those shown. For example, in some embodiments, channel 12013 may include two or more regions that, when weight 12082 is coupled, hide weight 12082. In some embodiments, channel 12013 may include one or more regions at the heel end 12022 and / or toe end 12018 that, when weight 12082 is coupled, hide weight 12082. In some embodiments, the channel 12013 includes one or more regions at the rear (or rear end) 12034 in which, when the weight 12082 is attached, a portion of the weight 12082 protrudes beyond the first surface 12073 and / or the second surface 12074.

[0088] In many embodiments, the channel 12013 has a shallow depth, ensuring that the adjustable weighting system 12066 has a 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 channel 12013 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. Furthermore, channel 12013 includes a width measured as the distance between the first surface 12073 and the second surface 12074. In the illustrated embodiment, channel 12013 includes a constant width. In other embodiments, 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, 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 and 2.0 inches, 0.1 and 0.5 inches, 0.3 and 0.7 inches, 0.5 and 0.9 inches, 0.7 and 1.1 inches, 0.9 and 1.3 inches, 1.1 and 1.5 inches, 1.3 and 1.7 inches, or 1.5 and 2.0 inches.

[0089] Referring again to Figures 9 and 10, the channel 12013 may include one or more features 12070A, B, C that define one or more discrete mounting positions for securing the weight 12082 to the club head 12010. Unlike other adjustable weighting systems, the club head 12010 having one or more discrete mounting positions allows the weight to be attached at any position on the club head, or at an infinite number of positions, or an unlimited number of positions. In the illustrated embodiment, the adjustable weighting system 12066 may comprise three features 12070A, B, C. In some embodiments, features 12070A, B, C may be a projection, opening, recess, port, notch, tab, cutout area, rib, groove, peg, hook, magnet, programmable magnet, or any other suitable mounting means capable of receiving a fastener. In other embodiments, channel 12013 may comprise one, two, three, four, five, six, seven, eight, nine, or ten features 12070. As shown in Figure 9, the third surface 12075 of channel 12013 may comprise three discrete mounting position features 12070A, B, and C. Features 12070A, B, and C may be any of the features described above. In other embodiments, features 12070A, B, and C may be located on the first, second, and / or third surfaces 12073, 12074, and 12075 of channel 12013.

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

[0091] Continuing to refer to Figures 9 and 10, the weight 12082 may have a generally elongated elliptical shape corresponding to the shape of the channel 12013. In other embodiments, the weight 12082 may have a circular, elliptical, rectangular, triangular, trapezoidal, polygonal, or any other suitable shape configured to fit within the channel 12013. In the embodiment shown in Figure 9, the adjustable weighting system 12066 comprises three weights 12082 that can be detachably coupled to features 12070A, B, and C in any configuration. In this embodiment, the number of weights 12082 corresponds to the number of features 12070A, B, and C. In the embodiment shown in Figure 10, the adjustable weighting system 12066 comprises one weight 12082 that can be detachably coupled to any of features 12070A, B, and C. In other embodiments, the adjustable weighting system 12066 may comprise more or fewer weights 12082 than the number of features 12070A, B, and C. For example, the adjustable weighting system 12066 may have one, two, three, four, five, six, seven, eight, nine, or ten weights 12082.

[0092] In the illustrated embodiment, the weight 12082 has an opening that extends completely through the weight 12082, and this opening is sized and configured to receive a threaded fastener or screw (not shown). The screw can be threaded through the weight 12082 into the corresponding features 12070A, B, C, thereby securing the weight 12082 to the channel 12013. In some embodiments, the weight 12082 may have a recess or slot for receiving the top of the screw, so that the screw can be positioned flush with the outer surface of the weight 12082. In other embodiments, the weight 12082 may have a blind opening that does not completely penetrate the weight 12082. In other embodiments, the weight 12082 may not have an opening. In other embodiments, the weight 12082 may be configured to be coupled to features 12070A, B, C by a friction fit, a snap fit mechanism, a set screw, or any other suitable structure.

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

[0094] In the illustrated embodiment, each of the weights 12082 is depicted as having the same shape and size. In other embodiments, the weights 12082 may differ in shape and size, and as a result, the weights 12082 may have different masses. Furthermore, in some embodiments, the weights 12082 may be made of different materials, and as a result, have different masses. For example, one weight 12082 may be made of a high-density material such as tungsten, and the remaining weights 12082 may be made of a lower-density material such as polyurethane or another plastic. In other embodiments, the weights 12082 may be made of the same or different materials and have different sizes or volumes, and as a result, have different masses. For example, one weight 12082 may have a larger volume than the remaining weights 12082. In some embodiments, each of the weights 12082 may have a different volume from one another, and as a result, have 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 designated 12082 is not a weight, but rather a lightweight (e.g., lightweight plastic) cover that snaps into or otherwise connects to one or more features 12070A, B, C.

[0095] In some embodiments, the weight 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, or 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., second, third, fourth, and fifth 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 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] To achieve the desired center of gravity position and / or moment of inertia and / or heel / toe bias of the club head 12010, the weights 12082 may be strategically placed on features 12070A, B, and C. For example, in some embodiments, a heavier weight 12082 is placed on feature 12070B, located between the toe (or toe end) 12018 and the heel (or heel end) 12022, while a lighter weight is placed on features 12070A and C near the toe (or toe end) 12018 and the heel (or heel end) 12022, or no weight is placed on features 12070A and C. This placement of the weights 12082 can keep the center of gravity centered while shifting it towards the rear end 12034 of the club head 12010. In some embodiments, a heavier weight 12082 is placed in feature 12070C near the heel (or heel end) 12022, while a lighter weight 12082 is placed 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 the weight is not placed in features 12070A,B. This placement of weights 12082 can shift the center of gravity toward the heel end 12022 of the clubhead 12010. In some embodiments, a heavier weight 12082 is placed in feature 12070A near the toe (or toe end) 12018, while a lighter weight 12082 is placed 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 weights are placed in features 12070C, B. This placement of weights 12082 can shift 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 be identical in size and shape, and the weights may be used interchangeably in each of features 12070A, B, C.In some embodiments, one or more features 12070A, B, C may have different sizes and shapes, so that each of features 12070A, B, C has a corresponding weight 12082 or set of weights 12082.

[0097] The adjustable weighting system 12066 of the golf club head 12010 significantly reduces the moment of inertia of the club head and maintains or prevents a low rearward position of the club head's center of gravity compared to a club head without an adjustable weighting system. The adjustable weighting system 12066 of the golf club head 12010 maintains a high moment of inertia of the club head and a low rearward position of the club head's center of gravity by having a low profile weighting system and by having one or more weights positioned around the periphery. The club head 12010 having the adjustable weighting system 12066 may have the same or identical parameters and measurements as the club head 100 described above.

[0098] Figures 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 which is adjusted by the end user to change the center of gravity and / or moment of inertia and / or heel / back bias of the club head 6810 in order to achieve desired performance characteristics (e.g., forgiveness, spin, trajectory) under various conditions. In many respects, the club head 6810 may be similar to club heads 100, 11010, and 12010, with similar or identical elements indicated by similar or identical numbers. Because the adjustable weighting system 6866 is a low-profile system, it does not significantly move or change the moment of inertia of the club head 6810 compared to a club head without the adjustable weighting system 6866. Furthermore, the low-profile adjustable weighting system 6866 ensures that the movement of the CG of the club head 6810 occurs mainly downward at the rear end 6834 and slightly toward the heel end 6822. This allows the overall center of gravity (CG) of the club head 6810 to be maintained at a low rearward position. The center of gravity and MOI of the club head 6810 may be similar to or identical to those of the club head 100 described above.

[0099] Referring to Figures 15 and 16, the adjustable weighting system 6866 may include a recess 6880. The recess 6880 comprises a concave surface 6881 configured to include a plurality of discrete mounting positions. The plurality of discrete mounting positions may comprise a variety of features, including fastener-receiving projections, openings, recesses or ports, notches or tabs or cutout areas, 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 positions. The three different mounting positions may each include features 6870A, B, and C. Features 6870A, B, and C may be any of the features described above. The mounting positions and corresponding features 6870A, B, and C are configured to receive one or more weights 6882.

[0100] Referring again to Figures 15 and 16, the recess 6880 defines a groove, channel, and / or concave track extending 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). This 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 being carved or fitted into the sole 6830. The recess 6880 further includes an outer wall (or first wall) 6883 extending along the entire length of the recess 6880 and an inner wall (or second wall) 6884 extending along the entire length of the recess 6880. In the illustrated embodiment, the first wall 6883 and the second wall 6884 extend substantially perpendicular to the concave surface 6881 and / or sole 6830. In other embodiments, the first wall 6883 and the second wall 6884 may extend inclined between the concave surface 6881 and / or sole 6830.

[0101] As shown in Figures 15 and 16, the recess 6880 comprises a first region 6877 near the rear end 6834 and rear periphery 10136 (standard position) of the club head 6810, a second region 6876 near the sole center 6832 (low spin position) of the club head 6810, and a third region 6878 near the heel end 6822 and rear periphery 10136 (straight flight position effective for slicing). However, these regions are not separated and are generally indistinguishable unless there is a mounting means. When the weight 6882 is attached to the club head 6810 in a region of the recess 6880, the weight 6882 may be flush with the sole 6830. When weight 6882 is attached to clubhead 6810 in another area of ​​recess 6880, a portion of weight 6882 may protrude outward from sole 6830, a portion of weight 6882 may sink inward from sole 6830 or be recessed, or a portion of weight 6882 may be flush with 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, changes, and / or is constant along the length from the rear end 6834 to the sole center 6832 and / or along the length from the sole center 6832 to the heel end 6822.

[0103] In many embodiments, the recess 6880 has a shallow depth, thereby ensuring that the adjustable weighting system 6866 has a low profile. The recess 6880 may have a depth that increases, decreases, changes, 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] Furthermore, the recess 6880 has a cross-sectional shape and cross-sectional area. In some embodiments, the cross-sectional shape of the channel 6813 may include cylindrical, circular, rectangular, triangular, polygonal, or trapezoidal shapes. The recess 6880 may have different and / or constant cross-sectional shapes 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 increasing, decreasing, changing, and / or constant cross-sectional areas between the first region 6877 and the second region 6876, and / or between the second region 6876 and the third region 6878.

[0105] Furthermore, 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 smaller 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, changes, 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 and 0.5 inches, 0.3 and 0.7 inches, 0.5 and 0.9 inches, 0.7 and 1.1 inches, 0.9 and 1.3 inches, 1.1 and 1.5 inches, 1.3 and 1.7 inches, or 1.5 and 2.0 inches.

[0106] Referring again to Figures 15 and 16, the recess 6880 may include one or more features 6870A, B, C that define discrete mounting positions for securing the weight 6882 to the club head 6810. Unlike other adjustable weighting systems, the club head 6810 having one or more discrete mounting positions allows the weight to be attached to any position on the club head, or to an infinite number of positions, or an unlimited number of positions. Referring again to Figures 15 and 16, in the illustrated embodiment, the recess 6880 includes three features 6870A, B, C. 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 less than or equal to the weight removed to form features 6870A, B, C. Furthermore, the screw fasteners 6885 may contain a material having a density less than or equal to the density of the material of the club head body. The screw fastener 6885 is configured to attach weights 6882 to features 6870A, B, and C. In other embodiments, features 6870A, B, and C may be projections, openings, recesses, ports, notches, tabs, cutout areas, ribs, grooves, pegs, hooks, magnets, programmable magnets, or any other suitable mounting means that can accept the fastener. In the illustrated embodiment, the adjustable weighting system 6866 includes three features 6870A, B, and C. In other embodiments, the recess 6880 may have any number of features, including one, two, three, four, five, six, seven, eight, nine, or ten features 6870.

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

[0108] Continuing to refer to Figures 15 and 16, the weight 6882 has a substantially rectangular shape. In other embodiments, the weight 6882 may have a circular, elliptical, triangular, trapezoidal, polygonal, or any other suitable shape configured to fit into the recess 6880. In the illustrated embodiment, the adjustable weighting system 6866 comprises 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, and 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 have three weights 6882 corresponding to the number of features 6870A, B, and C. In other embodiments, the adjustable weighting system 6866 may have more or fewer weights 6882 than the number of features 6870A, B, and C. For example, the adjustable weighting system 6866 may have one, two, three, four, five, six, seven, eight, nine, or ten weights 6882.

[0109] In the illustrated embodiment, the weight 6882 has an opening that extends completely through the weight 6882, and this opening is sized and configured to receive a threaded fastener or screw fastener 6885. The screw fastener 6885 is screwed through the weight 6882 into the corresponding features 6870A, B, C, thereby securing the weight 6882 to the recess 6880. In some embodiments, the weight 6882 may have a recess or slot for receiving the top of the screw fastener 6885, so that the screw fastener 6885 can be positioned flush with the outer surface of the weight 6882. In other embodiments, the weight 6882 may be configured to be coupled to 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, and as a result, the weights 6882 may have different masses. Furthermore, in some embodiments, the weights 6882 may be made from different materials, and as a result, have different masses. For example, one weight 6882 may be made from a high-density material such as tungsten, while 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 be made of the same or different materials and have different sizes or volumes, and as a result, have different masses. 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 from each other, and as a result, they may have different masses. In some embodiments, the weights 6882 may differ from each other in both volume and material. In some embodiments, one of the structures designated 6882 is not a weight, but rather a lightweight (e.g., lightweight plastic) cover that snaps into or otherwise connects to one of the features 6870A, B, or C.

[0111] In some embodiments, the weight 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, or 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 a mass of 1g, 2g, 3g, 4g, 5g, 6g, 7g, 8g, 9g, or 10g. In other embodiments, any number of weights may have the same mass, or may have varying masses between 0.1g and 50g.

[0112] Continuing to refer to Figures 15 and 16, in the illustrated embodiments, one or more features 6870A, B, C accept weight 6882, while the remaining features 6870A, B, C are empty and uncovered, have no weight, or are covered with another material or structure. In other embodiments, each of features 6870A, B, C accepts weight 6882. In some embodiments, one or more features 6870A, B, C may accept weight 6882. In some embodiments, one or more features 6870A, B, C do not extend beyond the outline of the club head 6810, and therefore, even if features 6870A, B, C are left empty and uncovered, features 6870A, B, C and / or recesses 6880 do not interfere with or obstruct the golfer's swing.

[0113] To achieve the desired center of gravity position and / or moment of inertia and / or heel / back bias of the club head 6810, the weights 6882 may be strategically placed on features 6870A, B, and C. For example, in some embodiments, heavier weights 6882 are placed on feature 6870A, located near the rear end 6834, while lighter weights are placed on features 6870B and C, near the sole center 6832 and heel end 6822. This placement of weights 6882 allows the center of gravity of the club head 6810 to be shifted towards the rear end 6834.

[0114] In some embodiments, heavier weights 6882 are placed in feature 6870C near the heel end 6822, while lighter weights 6882 are placed in feature 6270A near the rear end 6834 and in feature 6870B located near the sole center 6832. This arrangement of weights 6882 allows the center of gravity of the clubhead 6810 to be shifted towards the heel end 6822.

[0115] In some embodiments, a heavier weight 6882 is placed in feature 6870B located at the sole center 6832, while a lighter weight 6882 is placed in feature 6870A near the rear end 6834 and in feature 6870C near the heel end 6822. This arrangement of weights 6882 allows the center of gravity to be located at the center of the club head 6810.

[0116] In many embodiments, one or more of the features 6870A, B, and C are identical in size and shape, and therefore the weights may be interchangeable for each of the features 6870A, B, and C. In some embodiments, one or more of the features 6870A, B, and C may have different sizes and shapes, and therefore each of the features 6870A, B, and C has a corresponding weight 6882, or a set of weights 6882. Furthermore, the positional adjustment of the weights 6882 in the features 6870A, B, and C can also affect the spin imparted to the ball after impact.

[0117] The adjustable weighting system 6866 of the golf club head 6810 significantly reduces the moment of inertia of the club head and maintains or prevents a low rearward center of gravity compared to club heads without an adjustable weighting system. The adjustable weighting system 6866 of the golf club head 6810 maintains a high moment of inertia of the club head and a low rearward CG position due to the low profile of the weighting system and the position of one or more weights at the periphery.

[0118] Figures 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, having a club head body 13014, includes an adjustable weighting system 13066 comprising a cable 13069 and a tensioner 13067, the tensioner 13067 being adjustable to allow the 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 conditions. Because the adjustable weighting system 13066 is a low-profile system, it does not significantly move or change the MOI of the club head 13010 compared to a club head without the adjustable weighting system 13066. Furthermore, the low-profile adjustable weighting system 13066 ensures that the movement of the CG of the clubhead 13010 occurs primarily in the direction from the heel end 13022 to the toe end 13018, and can maintain the overall CG of the clubhead 13010 in a low rearward position. The center of gravity position and MOI of the clubhead 13010 may be similar to or identical to the center of gravity position and MOI of the clubhead 100 described above.

[0119] An adjustable weighting system 13066 is located in the sole 13030 of the club head 13010. As shown in Figures 11 and 12, the sole 13030 includes a recess 13080 having a concave surface 13081. The recess 13080 may be substantially rectangular in shape and may be located near the rear 13023, extending from near the toe end 13018 and rear perimeter 10136 to near the heel end 13022 and rear perimeter 10136. In the illustrated embodiment, the recess 13080 extends substantially parallel to the striking face 38. In other embodiments, the recess 13080 may be located anywhere on the sole 13030 and may have 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 outer surface 13074 of the concave surface 13081 or sole 13030. In other embodiments, the wall 13083 may be inclined upward or downward at an angle not perpendicular to the outer surface 13074 of the concave surface 13081 or sole 13030. In the embodiments shown in Figures 11 and 12, the wall 13083 may be in contact with the entire periphery of the recess 13080. In other embodiments, the wall 13083 may be in contact with 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 toward the rear end 13023 of the club head 13010 opposite the first wall portion 13089, a first end wall 13091 positioned toward the toe end 13018 of the club head 13010, and a second end wall 13092 positioned toward the heel end 13022 of the club head 13010 opposite the first end wall 13091. Generally, the concave surface 13081 extends substantially 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 substantially 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, as shown in Figures 11 and 12, the sole 13030 may further comprise 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 comprise one, two, three, four, or five openings 13085. In the embodiments shown in Figures 11 and 12, the sole 13030 comprises two openings 13085. In the illustrated embodiments, the openings 13085 are located on both sides 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 embodiments, the openings 13085 extend into the first and second end walls 13091, 13092 of the recess 13080. The opening 13085 is configured to accommodate the tensioner 13067 of the adjustable weighting system 13066. As shown in Figure 13, the opening 13085 comprises a threaded end 13086 adjacent to the recess 13080 and a head or receiving end 13087 adjacent to the outer surface 13074 of the sole 13030.

[0122] In the illustrated embodiment, the recess 13080 may further comprise a plurality of discrete mounting positions. The plurality of discrete mounting positions may comprise a variety of features 13070 including protrusions, openings, recesses or ports that can accept fasteners, notches or tabs or cutout areas, ribs or grooves, pegs, hooks, magnets, programmable magnets, or any other suitable mounting means. Feature 13070 defines discrete mounting positions 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 mounting positions allows the weights to be attached to any position on the club head, or to an infinite number of positions, or an unlimited number of positions. In the illustrated embodiment, feature 13070 is a straight wall-like projection or rib 13070 extending substantially perpendicular to the striking face 38 from the recess 13080. In other embodiments, feature 13070 may be a projection extending from recess 13080 at any angle and may be of any shape (e.g., a circular peg, an hourglass-shaped peg, a square peg, etc.).

[0123] As shown in Figures 11 and 12, the recess 13080 comprises five features 13070. Specifically, it comprises 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 comprise any number of features 13070. For example, the recess 13080 may comprise one, two, three, four, five, six, seven, or eight features 13070. In some embodiments, each of the features 13070 is spaced approximately equidistant from one another. In other embodiments, each of the features 13070 may be spaced at 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., polygons, or any shape having at least one curved surface) between each of the features 13070.

[0124] Weight 13082 is configured to be received by feature 13070 in recess 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 recess 13080. As shown in Figures 11 and 12, weight 13082 may have a rectangular cross-sectional shape. Weight 13083 may further include a notch 13084 located on the bottom surface of weight 13083. The notch 13084 of weight 13083 is configured to mate with feature 13070 in recess 13080. In many embodiments, the shape of the notch 13084 of weight 13082 corresponds to the shape of feature 13070 in recess 13080.

[0125] The weight 13082 may further include a through-hole 13071 configured to accommodate a cable 13069 of an adjustable weighting system 13066. When the weight 13082 is positioned within the recess 13080, the through-hole 13071 may penetrate the weight 13082 from the heel end 13022 to the toe end 13018 of the club head 13010. When assembled, the through-hole 13071 is parallel to the concave surface 13081. In other embodiments, the weight 13082 may not have the through-hole 13071. In these or other embodiments, the weight 13082 may include a groove (not shown) located on the upper surface of the weight 13082, configured to receive a cable 13069.

[0126] Weight 13082 further comprises mass. The mass of weight 13082 may be in the range of 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, 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, club head 13010 has three weights 13082, 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, club head 13010 has five weights 13082, 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 1082 has a mass of 3 grams.

[0127] An adjustable weighting system 13066, comprising a tensioner 13067 and a cable 13069, is configured to connect a weight 13082 to a club head 13010. The tensioner 13067 of the adjustable weighting system 13066 comprises a fastener 13067A and a washer 13067B. In some embodiments shown in Figure 14, the tensioner 13067 may be a clutch brake cable adjuster, with a notch 13068 cut into the fastener 13067A (extending along the entire length of the fastener 13067A) and the washer 13067B. The notch 13068 in the fastener 13067A and washer 13067B connects the cable 13069 to the fastener 13067. In other embodiments, the tensioner 13067 may be any type of fastener and washer having a notch configured to receive the cable 13069.

[0128] As shown in Figures 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, with the threaded end of the fastener 13067A engaging with the threaded end 13086 of the opening 13085, and the washer 13067B remaining in place at the receiving end 13087 of the opening. In some embodiments, the adjustable weighting system 13066 may comprise two or more tensioners 13067. For example, the adjustable weighting system 13066 may comprise 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. For example, as shown in Figures 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, once the tensioner 13067 is housed within the opening 13085, the tensioner 13067 does not extend beyond the outer surface 13074 of the sole 13030.

[0129] The cable 13069 of the adjustable weighting system 13066 is configured to be received by a tensioner 13067 and positioned within a recess 13080. The cable 13069 may be coupled to the tensioner 13067 via a notch 13068 in a fastener 13067A and washer 13067B, and the rotation of the washer 13067B secures 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, so that the cable 13069 does not come out of the fastener 13067A when tension is applied to the cable 13069. In some embodiments, the adjustable weighting system 13066 comprises one tensioner 13067, with one end of the cable 13069 configured to be coupled to the tensioner 13067 and the other end of the cable 13069 configured to be attached to / fixed to the end of the club head 13010 opposite to the tensioner 13067. In other embodiments, the adjustable weighting system comprises two tensioners 13067, with one end of the cable 13069 configured to be coupled to a first tensioner 13067 and the other end of the cable 13069 configured to be coupled to a second tensioner 13067. For example, as shown in Figures 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 tow end 13018.

[0130] Cable 13069 may be made of 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 metallic wire rope) or a non-metallic material such as fiber, polymer, plastic, or composite type rope. For example, cable 13069 may include baling twine, parachute cord material, nylon, Kevlar, polymer tweed, polymer-coated steel wire, polymer-coated any metallic wire, high-elasticity polyethylene fiber, polycarbonate, polyoxymethylene, and / or polyamide nylon.

[0131] Once the tensioner 13067 is received within the opening 13085 of the sole 13030, it may be rotated (i.e., twisted) to adjust the tension of the cable 13069. The notch 13068 of the tensioner 13067 allows the cable 13069 to be coupled to the tensioner 13067 so that it remains stationary and does not rotate with the tensioner 13067 even when the tensioner 13067 is rotated. The washer 13067B of the tensioner 13067 acts as a stopper within the opening 13085, preventing the fastener 13067A of the tensioner 13067 from moving within the opening 13085 during the swing and / or impact. When the tensioner 13067 is rotated clockwise, it retracts further into the opening 13085, loosening the cable. With the cable 13069 loosened, the weight 13082 can be lifted from feature 13070 in the recess 13080 and moved to another feature 13070 (or the weight 13082 having a through hole 13071 can slide along the cable 13069). Furthermore, with the cable 13069 loosened, an additional weight 13082 having a groove (not shown) can be placed on feature 13070 and under the cable 13069 to increase the weight. By changing the position of the weight 13082, the CG of the clubhead 13010 is reconfigured. For example, the weight 13082 may be repositioned from a first feature 13070A near the toe end 13018 to a second feature 13070E near the heel end 13022, and the movement of the CG toward the heel end 13022 helps correct the ball trajectory of a player who tends to slice and / or draw the ball. In other embodiments, the cable 13069 may be loosened by means other than the tensioner 13067.

[0132] The tensioner 13067 may be rotated counterclockwise (i.e., twisted) to increase the tension of 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 positioned within the opening 13085 extends outward toward the outer surface 13074 of the sole 13030, becoming flush with the outer surface 13074, indicating that the cable 13069 has reached its maximum tension. As shown in Figure 12, when the cable 13069 is tightened and presses against the weight 13082 (i.e., presses against the through hole 13071 or groove), a force is generated against the feature 13070 of the recess 13080, fixing the weight 13082 in place. When weight 13082 contacts feature 13070, weight 13082 becomes flush with the outer surface 13074 of sole 13030. In other embodiments, when weight 13082 contacts feature 3270, weight 13082 may extend beyond the outer surface 13074 of sole 13030, but not beyond the lowest point of clubhead 13010 at address. In other embodiments, when weight 13082 contacts feature 13070, weight 13082 retracts from the outer surface 13074 of sole 13030 and does not extend to or beyond the outer surface 13074 of sole 13030. In other embodiments, cable 13069 may be retracted by means other than tensioner 13067.

[0133] The club head 13010 described above, having an adjustable weighting system 13066 comprising a tensioner 13067 (or other cable adjustment means) and cable 13069, can optimize the performance of the golf club. Similar to club heads without an adjustable weighting system, the adjustable weighting system 13066 allows for weight adjustment of the club head 13010, which has a low center of gravity around the x-axis (heel-toe end) without sacrificing a high moment of inertia (MOI). By moving the CG around the x-axis, the player can correct slice or hook in the ball trajectory.

[0134] Compared to club heads with more complex structures for housing weights (e.g., deep weight ports, multiple weight ports, rail systems, weight covers / caps), the club head 13010, with its adjustable weighting system 13066 having a tensioner 13067 and cable 13069, is more useful in terms of ease of manufacture. The weight 13082, coupled to the club head body 13014, is held in place by the tension of the cable 13069, thus acting as a force on the weight 13082 on feature 13070 of the club head 13010. The force generated by the tension eliminates the need to manufacture the club head 13010 to have a weight housing structure with complex internal / external shapes for securing the weight 13082. Thus, the materials and mass associated with a complex weight housing structure can be reduced. The mass reduced by using a low-profile adjustable weighting system may then be placed elsewhere on the club head to increase strength and / or MOI and to improve the CG position. The force generated by the tension of cable 13069 further eliminates the need for screw fasteners, and therefore, there is no need to manufacture screw holes and receiving shapes for fasteners in weight 13082 and club head 13010. The absence of fasteners and screw holes reduces manufacturing costs and improves ease of manufacture.

[0135] Furthermore, the cables 13069 of the adjustable weighting system 13066 are lightweight, strong, and can be incorporated into numerous different patterns of recesses 13080 in the clubhead 13010. Since the weights 13082 are not limited to a specific weight housing structure, different patterns allow the weights 13082 to be placed in numerous different positions on the sole 13030. The various weight positions allow for fine-tuning of the CG placement, enabling adjustment of ball spin and trajectory for individual players. The cables 13069 may also be strategically placed in patterns such that the cables can reinforce specific locations on the clubhead 13010. The material and pattern of the cables 13069 may also act as sound dampers, absorbing vibrations experienced by the clubhead 13010 during impact, thereby reducing undesirable noise and stress during play.

[0136] The adjustable weighting system 13066 of the golf club head 13010 significantly reduces the moment of inertia of the club head and maintains or prevents a low rearward center of gravity position compared to a club head without an adjustable weighting system. The adjustable weighting system 13066 of the golf club head 13010 maintains a high moment of inertia of the club head and a low rearward CG position due to the low profile of the weighting system and the positioning of one or more weights at the periphery. The club head 13010 having the adjustable weighting system 13066 may have the same 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 at the minimum distance from the center of gravity (CG) of the corresponding club head, in a range of approximately 1.0 to 2.6 inches (e.g., approximately 1.0 inch, approximately 1.2 inches, approximately 1.4 inches, approximately 1.6 inches, approximately 1.8 inches, approximately 2.0 inches, approximately 2.2 inches, approximately 2.4 inches, or approximately 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 approximately 0.450 inches to approximately 0.550 inches inward from the periphery of the corresponding club head when viewed from above or the side (for example, the maximum distance from the periphery may be approximately 0.450 inches, approximately 0.460 inches, approximately 0.470 inches, approximately 0.480 inches, approximately 0.490 inches, approximately 0.500 inches, approximately 0.510 inches, approximately 0.520 inches, approximately 0.530 inches, approximately 0.540 inches, or approximately 0.550 inches). Other embodiments include different values ​​and ranges.

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

[0139] In many embodiments, the cable 13069 may have a thickness of 0.020 to 0.125 inches. For example, in some embodiments, the thickness of the cable 13069 may 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 tensile loads up to 1500 Newtons (N). For example, in many embodiments, the cable can withstand tensile loads from 200N to 1500N. For example, in some embodiments, the cable can withstand tensile loads up to 200N, 300N, 400N, 500N, 600N, 700N, 800N, 900N, 1000N, 1100N, 1200N, 1300N, 1400N, or 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 of the club head), each connected 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 embodiments described herein include a single cable, while others include multiple cables, and any embodiment described herein may include one or more cables corresponding to one or more tensioners.

[0143] Some embodiments described herein include a single channel or recess providing one or more features for guiding a cable and / or arranging one or more weights, while other embodiments described herein include a network of different channels providing one or more features for guiding a cable and / or arranging one or more weights; however, any embodiment described herein may include a single channel or a network of channels. Furthermore, while specific networks of channels are illustrated, all club heads described herein may have any channel arrangement, pattern, or size.

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

[0145] In some embodiments, one or more weights described herein (e.g., 11082, 6882, 12082, and / or 13082) may be attracted to the club heads 11010, 12010, and 13010 by magnetic force, and as a result, one or more weights may be held to the club head at least partially by magnetic force. For example, in some embodiments, one or more features 11070, 6870, and 12070 are protrusions or notches made at least partially of a metallic material, and one or more weights 11082, 6882, 12082, and / or 13082 are made at least partially of a magnetic material. One or more weights may also be held in place at least partially by magnetic attraction between one or more magnets and one or more features, and 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 a projection or in a notch and be held to the club head at least partially by friction and also by magnetic force. In some embodiments, one or more weights may be held in place by magnetic force alone. In yet another embodiment, one or more of the weights 11082, 6882, 12082, and / or 13082 are made at least partially of a metallic material, and one or more of the features 11070, 6870, 12070, and 13070 are made at least partially of a magnetic material.

[0146] In some embodiments, one or more of the weights described herein (e.g., 13082) are pressed against and held to the club head 13010 solely by tension in one or more cables. Therefore, in at least some embodiments, the club head does not include spaced-out notches or protrusions or other features having a size and shape that accommodates a single weight. Rather, the club head includes a larger surface (e.g., a concave surface), a tensioner, and one or more cables coupled to (e.g., pressed against) one or more weights. The tension exerted on one or more cables by the operation of the tensioner is sufficient to hold one or more weights in a desired position or arrangement relative to the club head. When the tension is released in the tensioner, one or more weights may move to different positions along the surface.

[0147] In some embodiments, one or more weights described herein (e.g., 11082, 6882, 12082, and / or 13082) include one or more rails (e.g., T-shaped rails) along a portion of the weight. Furthermore, one or more channels (e.g., a network of channels) having a size and shape that accommodates the rails may be formed in the club head, so that one or more weights may move along the channels from one position 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 one or more weights in various positions 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 projection from the club head body, or the weight may include a projection or screw that is received into a hole or port in the club head body (e.g., a recessed area in the club head body).

[0149] In addition, while some of the embodiments described above are described in the context of having a concave region and / or concave surface on the sole of the club head body, in some embodiments the club head body may also include a concave region including a concave surface along the crown or top of the club head. Thus, although generally described above as being primarily located on the sole of the club head, in some embodiments the 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] Various protrusions are illustrated and described herein as being used to attach weights to the club head, but the specific shape and size of the protrusions are not limited. Therefore, various shapes of protrusions (e.g., tapered protrusions, or protrusions of various sizes and shapes) may be used, including cylindrical, rectangular, square, spiral, trapezoidal, pyramidal, etc. The protrusions and / or corresponding openings may be fitted together. The protrusions may be wings or tabs extending away from the club head, or they may be posts. Various other types of protrusions may also be used.

[0151] Various covers, sole plates, geometric patterns, tensioners, cables, guides, clips, elongated channels, additional channels, threaded openings, and other features have been described above in relation to one or more specific embodiments, but in other embodiments, one or more of these features may be combined on the golf club head with different embodiments 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 polymer adhesive or other materials for additional weighting.

[0153] In some embodiments, one or more of the weights described herein may be tightened, loosened, and / or removed using a tool. For example, in some embodiments, one or more weights may include a specially designed or customized hole or socket that is large enough to engage with a portion of a tool (e.g., a torque wrench), thereby facilitating engagement between the torque wrench and 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 polygon or other key shape.

[0154] (Example 1: Adjustable weighting system for drivers) According to an example of a golf club head 12010 shown in Figures 9 and 10, the club head 12010 has a volume of 457 cubic centimeters (cc). The exemplary club head 12010 includes a recess 12013 having a channel located in the trailing edge portion 12072 along the rear periphery 10136. The recess 12013 includes a bottom wall (or third surface) 12075 having three mounting positions (or features) with threaded openings. The mounting positions include a first mounting position (or feature) 12070A near the toe end 12018, a second mounting position (or feature) 12070C near the heel end 12022, and a third mounting position (or feature) 12070B between the toe end 12018 and the heel end 12022.

[0155] An adjustable weighting system 12066 for an exemplary clubhead 12010 further comprises a first weight 12082 having a mass of 18 grams. The first weight 12082 has a height of 0.33 inches 10152, a width of 1.18 inches 10154, and a depth of 0.29 inches. The first weight 12082 has openings corresponding to multiple openings that define discrete mounting positions on the clubhead 12010. The first weight 12082 is secured to the discrete mounting positions using fasteners that are positioned through the openings in the first weight 12082 and the openings in the clubhead 12010. The fasteners do not contribute much to the weighting of the clubhead because they contain the same material as the body or a material with a lower density than the body.

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

[0157] Furthermore, referring to Table 1 below, 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. An exemplary club head 6810 further weighs 3,090 to 3,770 g·cm. 2 Moment of inertia I about the x-axis xx And, 4,936~5,383g·cm 2 Moment of inertia I about the y-axis yy And, 8,815~10,359 g·cm 2 Moment of inertia I about the hosel axis hh This includes the following. The combined moment of inertia of an exemplary club head 6766 centered on club head CG (i.e., the sum of the moment of inertia around the x-axis and the moment of inertia around the y-axis) is 8,023 to 9,153 g·cm². 2 The combined moment of inertia of the exemplary clubhead 6766 around the clubhead CG and hosel axis (i.e., the sum of the moment of inertia around the x-axis, moment of inertia around the y-axis, and moment of inertia around the hosel axis) is 16,841 to 19,237 g·cm². 2 That is the case.

[0158] Furthermore, referring to Table 1 below, an exemplary club head having an adjustable weighting system 6766 has a depth-to-mass ratio of the depth of the club head CG to the mass of the first weight, and the depth-to-mass ratio ranges from 0.099 inches to 0.106 inches. In addition, an exemplary club head having an adjustable weighting system 6766 has a first inertia-to-mass ratio of the combined moment of inertia of the club head around the head CG to the mass of the first weight, and the inertia-to-mass ratio is 446 cm 2 From 508cm 2 Furthermore, the exemplary club head having the adjustable weighting system 6766 has a head-CG weight ratio of 0.015 inches / gram to the mass of the first weight, where the head-CG weight ratio is 0.015 inches / gram. Thus, the adjustable weighting system 6766 of the exemplary club head 6810 allows the user to maximize head-CG depth, moment of inertia, and head-CG travel without using large, heavy weights that would involve a considerable weight structure.

[0159] [Table 1]

[0160] By moving the weight between the first, second, and third discrete mounting positions, the maximum movement of the clubhead's center of gravity is 0.27 inches. The maximum movement of the center of gravity of the example clubhead 6810 results in an overall trajectory change of up to 12.4 yards (i.e., when the first weight is moved from the first mounting position to the second mounting position, or from the second mounting position to the first mounting position). Therefore, by moving the weight from the third mounting position to the second mounting position, the golf ball's trajectory can be changed by 6.2 yards to correct a slice or generate a draw. Furthermore, by moving the weight from the third mounting position to the first mounting position, the golf ball's trajectory can be changed by 6.2 yards to correct a hook or generate a fade.

[0161] (Clause 1) It is a golf club head, A club head body having a toe end, a heel end located opposite the toe end, a crown, a sole located opposite the crown, a striking face, a rear end located opposite the striking face, and a periphery located at the joint between the crown and the sole, extending from near the heel end to near the toe end, It comprises an adjustable weighting system located on the sole, the periphery, or a combination thereof, The aforementioned adjustable weighting system is A recess generally having an arc shape along the contour of the periphery of the golf club head, the recess having a maximum depth of 0.25 inches, Multiple discrete mounting positions are arranged in the recess, It comprises one or more weights, Each of the one or more weights has a center of gravity and is configured to be coupled to one of the plurality of discrete mounting positions and is configured to be movable between the plurality of discrete mounting positions to move the 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 weights coupled to at least one of the discrete mounting positions. The one or more weights are positioned such that the center of gravity of each weight is inserted less than 0.125 inches from the outer contour of the club head. The combined moment of inertia is defined as the sum of the crown-sole moment of inertia and the heel-toe moment of inertia, and the combined moment of inertia of the club head around the center of gravity of the club head is 8,000 g·cm². 2 A larger golf club head.

[0162] (Article 2) The golf club head according to Clause 1, wherein the plurality of discrete mounting positions 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] (Article 3) The golf club head according to Clause 2, wherein the plurality of discrete mounting positions are provided with a plurality of threaded openings configured to receive fasteners.

[0164] (Article 4) The golf club head according to Clause 1, wherein the one or more weights comprises a first weight ranging from 10 grams to 20 grams.

[0165] (Article 5) The aforementioned adjustable weighting system is A first mounting position located toward the rear end and the tow end, A second mounting position located toward the rear end and the heel end, The golf club head according to Clause 1, further comprising a third mounting position located in the center and toward the rear end.

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

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

[0168] (Clause 8) The device further comprises a depth-mass ratio defined as the ratio of the coupling moment of inertia to the mass of the first weight, The aforementioned depth-to-mass ratio is greater than 0.060 inches / gram, as specified in Clause 1 of the golf club head.

[0169] (Article 9) The golf club head according to Clause 1, wherein the recess comprises a channel extending from the vicinity of the toe end of the club head toward the vicinity of the heel end.

[0170] (Clause 10) The golf club head according to Clause 9, wherein the depth of the channel changes from near the toe end of the club head to near the heel end.

[0171] (Article 11) The golf club head according to Clause 9, wherein the width of the channel changes from near the toe end to near the heel end of the club head.

[0172] (Article 12) It is a golf club head, A club head body having a toe end, a heel end located opposite the toe end, a crown, a sole located opposite the crown, a striking face, a rear end located opposite the striking face, and a periphery located at the joint between the crown and the sole, extending from near the heel end to near the toe end, It comprises an adjustable weighting system located on the sole, the periphery, or a combination thereof, The aforementioned adjustable weighting system is It extends in a V-shape, with a recess having a maximum depth of 0.25 inches, Multiple discrete mounting positions are arranged in the recess, It comprises one or more weights, Each of the one or more weights has a center of gravity and is configured to be coupled to one of the plurality of discrete mounting positions and is configured to be movable between the plurality of discrete mounting positions to move the 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 each weight attached to at least one of the discrete mounting positions. The one or more weights are positioned such that the center of gravity of each weight is inserted less than 0.125 inches from the outer contour of the club head. The combined moment of inertia is defined as the sum of the crown-sole moment of inertia and the heel-toe moment of inertia, and the combined moment of inertia of the club head around the center of gravity of the club head is 8,000 g·cm². 2 A larger golf club head.

[0173] (Article 13) The golf club head according to Clause 12, wherein the plurality of discrete mounting positions 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) The golf club head according to Clause 13, wherein the plurality of discrete mounting positions are provided with a plurality of threaded openings configured to receive fasteners.

[0175] (Article 15) The golf club head according to Clause 12, wherein the one or more weights comprises a first weight of 10 to 20 grams.

[0176] (Article 16) The aforementioned adjustable weighting system is The first mounting position located near the rear end, The second mounting position located at the center of the sole, The golf club head according to Clause 12, further comprising a third mounting position located near the heel end.

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

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

[0179] (Article 19) The device further comprises a depth-mass ratio defined as the ratio of the coupling moment of inertia to the mass of the first weight, The aforementioned depth-to-mass ratio is greater than 0.060 inches / gram, as specified in Clause 12 of the golf club head.

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

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

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

[0183] (Article 23) It is a golf club head, A club head body having a toe end, a heel end located opposite the toe end, a crown, a sole located opposite the crown, a striking face, a rear end located opposite the striking face, and a periphery located at the joint between the crown and the sole, extending from near the heel end to near the toe end, It comprises an adjustable weighting system located on the sole, the periphery, or a combination thereof, The aforementioned adjustable weighting system is 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, Multiple discrete mounting positions are arranged in the recess, Cable and A tensioner is positioned within the opening of the sole and increases or decreases the tension of the cable, The cable comprises one or more weights coupled to the cable, Each of the one or more weights has a center of gravity and is configured to be coupled to one of the plurality of discrete mounting positions and is configured to be movable between the plurality of discrete mounting positions to move the center of gravity of the club head. The one or more weights are positioned such that the center of gravity of each weight is inserted less than 0.125 inches from the outer contour of the club head. The combined moment of inertia is defined as the sum of the crown-sole moment of inertia and the heel-toe moment of inertia, and the combined moment of inertia of the club head around the center of gravity of the club head is 8,000 g·cm². 2 A larger golf club head.

[0184] (Article 24) The first mounting position located near the toe end, A second mounting position located near the heel end, The golf club head according to Clause 23, further comprising a third mounting position located between the first and second mounting positions.

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

[0186] (Article 26) The golf club head according to Clause 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) The golf club head according to Clause 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) The golf club head according to Clause 23, wherein the one or more weights are provided with through holes configured to accommodate the cables.

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

[0190] The replacement of one or more claimed elements constitutes reconstruction and does not constitute repair. Further, benefits, other advantages, and solutions to problems have been described with respect to certain embodiments, but these benefits, advantages, solutions to problems, and any element that may provide or make more prominent any benefit, advantage, or solution are not to be construed as critical, required, or essential features or elements of any or all of the claims unless such benefit, advantage, solution, or element is explicitly recited in the claims.

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

[0192] The above examples may be described in connection with a wood-type golf club, but the devices, methods, and products described herein may also be applicable to various types of golf clubs including drivers, fairway woods, hybrids, crossovers, or any hollow body type golf club. Alternatively, the devices, methods, and products described herein may also be applicable to other types of sports implements such as hockey sticks, tennis rackets, fishing rods, ski stocks, etc.

[0193] Furthermore, the embodiments and limitations disclosed herein will not be made public under the principle of public ownership if (1) the embodiments and / or limitations are not expressly claimed in the claims, and (2) under the doctrine of equivalents, they are equivalents or may be equivalents of the express elements and / or limitations in the claims.

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

Claims

1. It is a golf club head, A club head body having a toe end, a heel end located opposite the toe end, a crown, a sole located opposite the crown, a striking face, a rear end located opposite the striking face, and a periphery located at the joint between the crown and the sole, extending from near the heel end to near the toe end, It comprises an adjustable weighting system located on the sole, the periphery, or a combination thereof, The aforementioned adjustable weighting system is A recess having a curved shape generally following the contour of the periphery of the golf club head, the recess having a maximum depth of 0.25 inches, Multiple discrete mounting positions are arranged in the recess, It comprises one or more weights, Each of the one or more weights has a center of gravity and is configured to be coupled to one of the plurality of discrete mounting positions and is configured to be movable between the plurality of discrete mounting positions in order to move the 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 each weight attached to at least one of the discrete mounting positions. The one or more weights are positioned such that the center of gravity of each weight is inserted from the outer contour of the club head by a distance of less than 0.125 inches. The combined moment of inertia is defined as the sum of the crown-sole moment of inertia and the heel-toe moment of inertia, and the combined moment of inertia of the club head around the center of gravity of the club head is 8,000 g·cm². ２ A larger golf club head.

2. The golf club head according to claim 1, wherein the plurality of discrete mounting positions 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 according to claim 2, wherein the plurality of discrete mounting positions are provided with a plurality of threaded openings configured to receive fasteners.

4. The golf club head according to claim 1, wherein the one or more weights comprises a first weight ranging from 10 grams to 20 grams.

5. The aforementioned adjustable weighting system is The first mounting position is located toward the rear end and the tow end, A second mounting position located toward the rear end and the heel end, The golf club head according to claim 1, further comprising a third mounting position located in the center and toward the rear end.

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

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

8. The device further comprises a depth-mass ratio defined as the ratio of the coupling moment of inertia to the mass of the first weight, The golf club head according to claim 1, wherein the depth-to-mass ratio is greater than 0.060 inches / gram.

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

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

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

12. It is a golf club head, A club head body having a toe end, a heel end located opposite the toe end, a crown, a sole located opposite the crown, a striking face, a rear end located opposite the striking face, and a periphery located at the joint between the crown and the sole, extending from near the heel end to near the toe end, It comprises an adjustable weighting system located on the sole, the periphery, or a combination thereof, The aforementioned adjustable weighting system is It extends in a V-shape, with a recess having a maximum depth of 0.25 inches, Multiple discrete mounting positions are arranged in the recess, It comprises one or more weights, Each of the one or more weights has a center of gravity and is configured to be coupled to one of the plurality of discrete mounting positions and is configured to be movable between the plurality of discrete mounting positions in order to move the 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 each weight attached to at least one of the discrete mounting positions. The one or more weights are positioned such that the center of gravity of each weight is inserted from the outer contour of the club head by a distance of less than 0.125 inches. The combined moment of inertia is defined as the sum of the crown-sole moment of inertia and the heel-toe moment of inertia, and the combined moment of inertia of the club head around the center of gravity of the club head is 8,000 g·cm². ２ A larger golf club head.

13. The golf club head according to claim 12, wherein the plurality of discrete mounting positions 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.

14. The golf club head according to claim 13, wherein the plurality of discrete mounting positions are provided with a plurality of threaded openings configured to receive fasteners.

15. The golf club head according to claim 12, wherein the one or more weights comprises a first weight ranging from 10 grams to 20 grams.

16. The aforementioned adjustable weighting system is The first mounting position located near the rear end, The second mounting position located at the center of the sole, The golf club head according to claim 12, further comprising a third mounting position located near the heel end.

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

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

19. The device further comprises a depth-mass ratio defined as the ratio of the coupling moment of inertia to the mass of the first weight, The golf club head according to claim 12, wherein the depth-to-mass ratio is greater than 0.060 inches / gram.

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

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

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

23. It is a golf club head, A club head body having a toe end, a heel end located opposite the toe end, a crown, a sole located opposite the crown, a striking face, a rear end located opposite the striking face, and a periphery located at the joint between the crown and the sole, extending from near the heel end to near the toe end, It comprises an adjustable weighting system located on the sole, the periphery, or a combination thereof, The aforementioned adjustable weighting system is 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, Multiple discrete mounting positions are arranged in the recess, Cable and A tensioner is positioned within the opening of the sole and increases or decreases the tension of the cable, It comprises one or more weights coupled to the cable, Each of the one or more weights has a weight center of gravity, is configured to be coupled to one of the plurality of discrete mounting positions, and is configured to be movable between the plurality of discrete mounting positions to move the center of gravity of the club head. The one or more weights are positioned such that the center of gravity of each weight is inserted from the outer contour of the club head by a distance of less than 0.125 inches. The combined moment of inertia is defined as the sum of the crown-sole moment of inertia and the heel-toe moment of inertia, and the combined moment of inertia of the club head around the center of gravity of the club head is 8,000 g·cm². ２ A larger golf club head.

24. The first mounting position located near the toe end, A second mounting position located near the heel end, The golf club head according to claim 23, further comprising a third mounting position located between the first and second mounting positions.

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

26. The golf club head according to 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. The golf club head according to 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 according to claim 23, wherein one or more weights are provided with through holes configured to accommodate the cables.

29. The golf club head according to claim 23, wherein the tensioner is flush with the outer surface of the sole when the cable reaches maximum tension.

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