KR20220038738A - Multi-component golf club head - Google Patents

Abstract

A golf club head comprising two components, the first component including a ball striking surface, a striking surface return portion, and a sole extension having a rear mass. The second component includes a low-density material comprising a portion of the crown and a portion of the sole. The first component constitutes a majority of the mass of the golf club head and the rear mass constitutes 20% to 35% of the mass of the golf club head.

Description

Multi-component golf club head

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional Application No. 62/878,263, filed July 24, 2019, the entire contents of which are incorporated herein by reference.

technical field

BACKGROUND This disclosure relates generally to golf equipment, and more particularly to multi-component golf club heads and methods of making Malti-component golf club heads.

In general, club head mass is the sum of structural mass and arbitrary mass. In an ideal club design with a constant total swing weight, the structural mass would be minimized (without sacrificing resilience), giving the designer enough arbitrary mass for selective placement to customize and maximize club performance. Structural mass generally refers to the mass of material required to provide the club head with structural resilience to withstand repeated impacts. Structural mass is highly design dependent and gives the designer a relatively small amount of control over a particular mass distribution. Conversely, any mass is any additional mass (beyond the minimum structural requirements) that can be added to the club head design to customize the performance and/or forgiveness of the club. An alternative to all metal golf club heads to provide a means to maximize any weight to maximize club head moment of inertia (MOI) and lower/rear center of gravity (CG) and to provide options for golf ball flight manipulation. A design need exists in the art.

1A illustrates a rear view of an assembled golf club head;
1B illustrates a bottom view of an assembled golf club head.
1C illustrates a front perspective view of an assembled golf club head;
1D illustrates a cross-sectional view of a golf club head having a loft plane, a ground plane and a Z-axis.
1E illustrates a front view of an assembled golf club head having X-, Y- and hosel-axes;
1F illustrates an assembly and exploded view of a golf club head;
2 illustrates a rear exterior view of a second component of a golf club head;
3 illustrates a front interior view of a second component of a golf club head;
4 illustrates a front plan view of a first component of a golf club head;
5 illustrates a top view of a first component of a golf club head.
6 illustrates a rear view of a first component of a golf club head showing a central plane through a striking plane center parallel to the ground plane;
7 illustrates a cross-sectional view of the first golf club component of FIG. 6 taken along baseline XII;
8 illustrates a bottom view of a first component of a golf club head.
9 illustrates a bottom view of a rear extension mass of a sole portion of a first component of a golf club head;
10 illustrates a close-up rear view of a rear extension mass of a sole portion of a first component of a golf club head;
11 illustrates a cross-section of a rear extension mass of a sole portion of a first component of a golf club head;
12 illustrates a rear extension mass of a sole portion of a first component of a golf club head having a detachable weight recess and an embedded weight recess;
13 illustrates a top view of a separable weight with a threaded fastener.
14 illustrates a side perspective view of a detachable weight with a threaded fastener.
15 illustrates a first component of a golf club head showing casting support bars;
16A illustrates a side view of a buried weight for mating into the buried weight recess of FIG. 12 ;
16B illustrates a top view of a buried weight.
17 illustrates a perspective view of a golf club head according to a second embodiment.
18 illustrates a perspective view of a first component of the club head of FIG. 17 ;
19 illustrates a sole side view of the first component of FIG. 18 ;
20 illustrates a sole side view of the first component of FIG. 18 with a movable weight in a toe side position;
FIG. 21 illustrates a sole side view of the first component of FIG. 18 with a movable weight in a heel side position;
22 illustrates a sole side view of a golf club head having a straight rear sole extension in accordance with one embodiment.
23 illustrates a sole side view of a golf club head having a straight rear sole extension in accordance with one embodiment.
24 illustrates a sole side view of a golf club head having a straight rear sole extension in accordance with one embodiment.
25 illustrates a sole side view of a golf club head with a beveled rear sole extension in accordance with one embodiment.
26 illustrates a sole side view of a golf club head with a beveled rear sole extension in accordance with one embodiment.
27 illustrates a sole side view of a golf club head having a variable width sole extension in accordance with one embodiment.
28 illustrates a sole side view of a golf club head having a variable width sole extension in accordance with one embodiment.
29 illustrates a front view of a second component of a golf club head according to one embodiment.
30 illustrates a front view of a second component of a golf club head according to one embodiment.

Described herein is a hollow golf club head comprising two major components. The first component is metallic. The second component is non-metallic. The metallic first component includes a striking portion and a sole extension. A second, non-metallic component includes the rear portion of the crown and is enclosed to also include a portion of the sole. The first component includes a load-bearing or structural area of the golf club head, and also includes a majority of the mass of the golf club head. The first component includes a rearwardly extending sole portion having a substantial portion of the golf club mass disposed at the rearmost portion of the extension, such that the first portion forms a “T” shape when viewed from above. This arrangement provides an arbitrary mass that can be redistributed to improve the center of gravity (CG) position and the moment of inertia (MOI). Improved CG and MOI provide more accurate ball flight compared to traditional all-metal golf club heads. Golf club heads discussed herein may include driver-type golf club heads, fairway-type golf club heads, or hybrid-type golf club heads.

The denser “T”-shaped sole of the first component coupled to a less dense crown wrapped around the second component would optimize mass properties by reducing crown mass and shifting the golf club head center of gravity (CG) lower. can The weight saved from the second component can be redistributed to other locations on the golf club head to further optimize the CG and increase the MOI. The CG of the golf club head may be moved lower towards the rear of the golf club head comprising a first component and a second component, wherein the second component comprises an alternative golf club head only comprising a first material having a constant density. and a second material having a second density less than the first material density as compared to .

The singular surfaces, “at least one” and “one or more,” mean that at least one of the items is present; A plurality of such items are used interchangeably to indicate that there may be a plurality of such items, unless the context clearly indicates otherwise. All numerical values (eg, quantities or conditions) of a parameter herein, including in the appended claims, refer to in all instances where "about" is modified by "about" regardless of whether or not "about" actually appears before the numerical value. should be understood as "About" indicates that the numerical value specified tolerates some inaccuracy (with some approach to the precision of the value; approximately or reasonably close to the value; nearly). Unless the inaccuracy provided by "about" is otherwise understood in the art in this conventional sense, "about" as used herein refers at least to variations that may arise in the ordinary methods of measuring and using such parameters. Also, the disclosure of ranges includes the disclosure of all values, including ranges that are further subdivided within the entire range. Each value within a range and the end of the range are all hereby disclosed as separate examples. The terms "comprise", "comprising", "comprising" and "having" are inclusive and thus state the existence of the specified item, but do not exclude the existence of another item. As used herein, the term “or” includes any and all combinations of one or more of the listed items. When various items are distinguished from each other using terms such as first, second, third, etc., these designations are for convenience only and do not limit the items.

In the description and claims, the terms "first", "second", "third", "fourth", etc., if any, are used to distinguish similar elements, and do not necessarily refer to a particular sequential or chronological order. It is not used to explain. It is to be understood that the terms so used are interchangeable under appropriate circumstances, and thus the embodiments described herein may operate, for example, in orders other than those illustrated or otherwise described herein. Also, the terms “comprise” and “have” and any variations thereof are intended to encompass a non-exclusive connotation, so that a process, method, article, device, or apparatus comprising a list of elements includes such elements. It is not necessarily limited and may include other elements inherent in such a process, method, article, device, or apparatus or not explicitly listed.

In the description and claims, the terms "left", "right", "front", "rear", "upper", "lower", "above", "below", etc., if any, are used for descriptive purposes and , not necessarily to account for the relative position of invariants. The terminology used as such means that, under appropriate circumstances, embodiments of manufacturing apparatuses, methods of manufacture, and/or articles of manufacture described herein may, for example, operate in orientations other than those illustrated or otherwise described herein. It should be understood that they are interchangeable.

Other features and aspects will become apparent from consideration of the following detailed description and accompanying drawings. Before any embodiment of the present disclosure is described in detail, it is to be understood that the present disclosure is not limited in its application to the details of construction and arrangement of components set forth in the description or illustrated in the drawings. The present disclosure is capable of supporting other embodiments and of being practiced or carried out in various ways. It is to be understood that the description of specific embodiments is not intended to limit the disclosure to include all modifications, equivalents and substitutions falling within the spirit and scope of the disclosure. It is also to be understood that the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting.

1) First embodiment of a golf club head

An embodiment of a golf club head 100 comprising two components, a first component and a second component, is described herein. The golf club head includes a striking face 170 , a striking face return 177 , a hosel 140 , a crown 110 , a sole 120 , a heel end 160 , a toe end 150 , The trailing edge 130 of the rearmost portion of the rear end 180, the hosel 140, and the sole portion hosel adapter attachment recess 195 are formed.

The golf club head 100 further defines a loft plane 198 tangent to the striking surface center 175 of the striking surface 170 . The face height may be measured parallel to the loft plane between the upper end of the perimeter of the striking surface near the crown 110 and the lower end of the perimeter of the striking surface near the sole 120 . In these embodiments, the perimeter of the striking surface may be located along the outer edge of the striking surface 170 where the curvature deviates from the bulge and/or roll of the striking surface 170 .

1D and 1E , the striking surface center 175 further defines a coordinate system having an origin at the striking surface center 175 of the striking surface 170 , the coordinate system being the X-axis, the Y-axis and the Z - have an axis The X-axis 190 is in the direction from the heel end 160 to the toe end 150 of the golf club head 100 through the striking surface center 175 of the striking surface 170 to the club head 100 at address. When present, it extends parallel to the ground plane 105 . The Y-axis 192 extends perpendicular to the X-axis 190 in a direction from the crown 110 of the golf club head 100 to the sole 120 through the striking face center 175 of the striking face 170 . and the Z-axis 196 is the X-axis 190 and the Y-axis in the direction from the striking surface 170 to the rear end 180 of the golf club through the striking surface center 175 of the striking surface 170 . extends perpendicular to 192 .

The coordinate system includes an XY plane extending through X-axis 190 and Y-axis 192 , an XZ plane extending through X-axis 190 and Z-axis 196 , and a Y-axis 192 and define a YZ plane extending through Z-axis 196 , where the XY plane, the XZ plane and the YZ plane are all perpendicular to each other and intersect at the origin of the coordinate system at the striking plane center 175 of the striking plane 170 . . The XY plane extends parallel to the hosel axis and is positioned at an angle corresponding to the loft angle of the golf club head 100 from the loft plane. Also, the X-axis 190 is positioned at a 60 degree angle to the hosel axis 199 when viewed in a direction perpendicular to the XY plane.

A) first component

1A-1F and 4-8 , the first component 300 comprises a portion of a crown 400 , a hosel 140 , a portion of the heel end 160 , a portion of the toe end 150 , a striking surface 170 having a portion of the trailing edge 130 , a concave lip 450 (also referred to as a joint extension surface), and a return portion 177 forming a portion of the sole 120 . may include The striking surface return portion 177 includes a rear extension positioned approximately perpendicular to the striking surface 170 and extending from the other perimeter of the striking surface 170 . The striking surface return 177 forms a rear profile in a heel end-toe end direction. In other embodiments, the back profile of the first component 300 is a straight profile, a positive parabolic profile, a bell-shaped profile, or any other profile relative to the striking face 170 , from heel end 160 to toe end. It may extend to the (150) side. 2 and 3 , the second component 200 includes at least a portion of a crown 110 , a sole 120 , a trailing edge 130 , and a rear cutout 240 . can do.

The first component 300 includes a first material having a first density. The first material includes a metallic material. The second component 200 includes a second material having a second density. The second component 200 has a second component mass.

The first material density of the first component 300 is greater than the second material density of the second component 200 . The mass fraction of the first component 300 may range from 85% to 96% of the mass of the golf club head 100 . For example, the proportion of the first component of the mass of the golf club head may be 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, or 96 It can be %. The mass fraction of the second component 200 may range from 4% to 15% of the mass of the golf club head 100 . The first component 300 includes a sole rear extension 500 having a mass 510 at an extreme rear position of the rear extension 500 . The mass portion 510 may have from 20% to 35% of the mass of the hollow multi-component golf club head 100 . Placing a substantial portion of the mass of the golf club head in a rearmost position of the golf club head provides functionally desirable mass properties. For example, the rearmost position of the mass portion 510 may lower the CG of the golf club head to improve the firing characteristics.

The first component 300 may be integrally formed as a single piece, such that the first component comprises a single material. Alternatively, the first component 300 may include a separately formed striking face insert comprising a different material (ie, a third material) than the rest of the first component 300 .

A first metallic component 300 is coupled to a second non-metallic component 200 wrapped around the first component 300 to form a hollow golf club head 100 . The second component trailing edge portion 230 is connected to the second component crown portion 205 and the second component crown portion 205 when the second component crown portion 205 and the second component sole portions 212 , 214 wrap around the first component 300 . The second component sole portions 212 and 214 are connected.

Referring to FIG. 1F , a golf club head 100 includes a first component 300 and a second component 200 configured to be joined together to form a hollow golf club head. The first component is T-shaped and includes a metallic material. The sole of the first component 300 has a rear sole extension with a mass member at the rearmost end of the sole extension. This configuration lowers the CG of the assembled golf club head and moves the CG to the rear of the assembled golf club head.

1E and 4 , the first component 300 includes a hosel bore 145 defining a hosel axis 199 , a striking face center 175 , a striking face crown portion 420 , and a striking face a striking surface return crown portion 400 having a return crown portion width 405 and a first component trailing edge 440 . Some embodiments may further include a first component crown portion concave-convex portion 430 having a first component crown portion turbulator toe portion 432 and a first component crown portion concave-convex heel portion 434 .

The first component may include a concave lip (also referred to as a joint extending surface) configured to overlap a portion of the second component and configured to together form a golf club head. The first component 300 may include a first component lip 450 and first component tabs 457 abutting a first component peripheral edge 462 having a first component crown portion lip 455 . there is. The first component tab 457 and matching grooves in the second component align the first component 300 to the second component 200 during assembly and add mechanical support to the first component 300 and the second component ( 200) to prevent lateral movement between them.

The first component lip is recessed from the outer surface of the golf club head to receive an overlapping lip of the second component and a combined thickness of any adhesive securing the two components together. Referring to FIG. 5 , the first component 300 includes a first component lip recess offset 459 , a first component sole lip 460 , a first component sole rear extension 500 , and an inner front edge of the mass part ( A first component sole rear extension mass 510 having a 502 , one or more mass inner ribs 520 and a weight recess inner front edge 544 detachable with a threaded fastener receiving boss 542 . and a separable weight recess 540 having Referring also to FIG. 1F , first component lip 455 is formed by a portion of second component 200 when first component 300 is coupled to second component 200 to form golf club 100 . configured to cover. The first component 300 may preferably be coupled to the second component 200 by an adhesive disposed between the overlapping surfaces of the first and second components.

Referring to FIG. 7 , the first component lip has a width 730 that may range from 0.125 inches to 0.275 inches. For example, the first component lip width 730 may be 0.125 inches, 0.150 inches, 0.175 inches, 0.200 inches, 0.022 inches, 0.225 inches, 0.250 inches, or 0.275 inches.

The first component recess offset 459 is the offset distance of the lip 455 from the outer surface of the first component 300 to the inner side of the golf club head. The recess offset 459 may range from 0.060 inches to 0.160 inches toward the inner side of the golf club head 100 . In other embodiments, the recess offset 459 may range from 0.060 inches to 0.150 inches, 0.060 inches to 0.140 inches, 0.080 inches to 0.160 inches, 0.090 inches to 0.150 inches, or 0.090 inches to 0.160 inches. For example, the recess offset 459 may be 0.060 inches, 0.070 inches, 0.080 inches, 0.090 inches, 0.100 inches, 0.110 inches, 0.120 inches, 0.130 inches, 0.140 inches, 0.150 inches, or 0.160 inches.

The first component lip 450 may have a thickness. The thickness of the first component lip 450 may range from 0.007 inches to 0.030 inches. In some embodiments, the thickness of the first component lip 450 is between about 0.007 inches and 0.009 inches, between 0.009 inches and 0.011 inches, between 0.011 inches and 0.013 inches, between 0.013 inches and 0.015 inches, between 0.015 inches and 0.017 inches, between 0.017 inches and 0.019 inches. inch, 0.019 inch to 0.021 inch, 0.021 inch to 0.023 inch, 0.023 inch to 0.025 inch, 0.025 inch to 0.027 inch or 0.027 inch to 0.030 inch.

Still referring to FIG. 5 , the first component has a rear extension on the sole, which may allow a greater portion of the mass of the assembled golf club head to be displaced down the sole and to the rear side of the assembled golf club head. The rear extension 500 integrally extends from the striking face return to allow the impact stress to propagate to the rear end of the sole to help balance the impact stress distribution of the golf club head.

Still referring to FIG. 5 , the first component lip 450 includes a first component crown portion lip 455 and a first component sole lip 460 . The first component lip 450 may have different portions.

Referring to FIG. 6 , a plane 610 parallel to the ground plane 105 and intersecting the striking plane center 175 represents a view of the lower portion of the first component 300 as shown in FIG. 7 . define. 7 and 8 , the rear extension 500 extends from the rear perimeter of the striking surface return sole portion 810 toward the rear end 180 of the golf club head 100 .

Referring to FIG. 7 , the first component 300 includes a first component lip having a first component sole heel extension 710 , a first component sole toe extension 720 , and a first component lip width 730 . 460 , a first component component trailing edge portion 740 , and a first component sole rear extension mass 510 having a vertical lip 750 and a mass trailing edge shelf 760 .

The rear extension 510 has a greater mass at the rearmost position of the extension. Placing the mass in the rearmost position allows manipulation of the rear sole extension position, which can significantly affect the mass properties of the assembled golf club head. Referring to FIG. 8 , the first component 300 includes a first component sole rear extension 500 having a first component sole rear extension length 505 and a first component sole rear extension width 507 . do. The first component 300 includes a striking surface return sole portion 810 having a striking surface return sole width 815 , a first component sole toe extension 820 having a first component sole toe extension length 825 . ), and a first component sole heel extension 830 having a first component sole heel extension length 835 . The rear extension length 505 is measured from the rear perimeter of the striking face return portion 810 toward the rear end 180 . Return sole width 815 is measured from the loft plane 198 back to the back perimeter of the striking face return, the back perimeter being the sole portion of the first component circumferential edge 462 . The rear extension length 505 and the return sole width 815 together constitute the total sole length of the golf club head 100 measured along the sole 120 from the loft plane 198 to the rear end 180 . . The rear extension width 507 is the width of the rear extension 500 . The rear extension width 507 is measured in a heel-toe direction rearward around the rear perimeter of the striking face return sole portion 810 that is the sole portion of the first component peripheral edge 462 . The rear extension width 507 is less than the overall width of the sole 120 of the golf club 100 . The rear extension width 507 is 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80% of the total width of the sole 120 . or 85%.

7 and 8 , first component sole rear extension 500 , toe extension 720 , and heel extension 710 together form a T-shaped configuration. The first component sole back extension 500 defines a toe extension 720 and a toe angle 850 , and a heel extension 710 and a heel angle 855 . The first component 300 further includes a separable weight recess 540 having a plurality of separable weight recess tabs 546 .

5 , 7 and 8 , the striking surface return portion 177 extends rearwardly from a perimeter of the striking surface that is essentially perpendicular to the striking surface 170 . The striking surface 170 and the striking surface return portion 177 constitute the front section of the assembled golf club head. The striking surface return portion 177 includes a striking surface return crown portion 400 having a striking surface return crown width 405 , and a striking surface return sole portion 810 having a striking surface return sole width 815 . includes The striking face return crown portion 400 includes a rear perimeter that forms a profile on the crown 110 from the heel end 160 of the crown 110 to the toe end 150 of the crown 110 . The striking surface return crown width measured from the striking surface 170 to the rear end 180 side may vary. The striking face return crown maximum width 405 may be smaller at the toe end 150 and the heel end 160 , and may be larger at the mid region between the toe end 150 and the heel end 160 . The striking face return crown width 405 may be at least 0.8 inches, at least 1.0 inches, at least 1.2 inches, or at least 1.4 inches. In some embodiments, the striking face return crown maximum width 405 may range from 1.0 inches to 1.5 inches. For example, the striking face return crown maximum width 405 may be 1.0 inches, 1.1 inches, 1.2 inches, 1.3 inches, 1.4 inches, or 1.5 inches. The second component crown width 405 may be similar to the crown portion as described in US application Ser. No. 11/693,490 (now US Pat. No. 7,601,078).

Manipulating the position of the rear sole extension provides a means of manipulating the mass properties of the assembled golf club head. 4 , 5 , 7 and 8 , the sole portion of the first component extends from a center near the striking surface toward the toe end forming a first component sole toe end extension 720 , the first component sole heel end extending It may extend toward the heel end forming portion 710 and toward the first component sole rear extension 500 . The first component sole toe extension 720 , the first component sole heel extension 710 , and the first component sole back extension 500 may form a “T” shaped profile. In some embodiments, the toe extension may have a first component sole toe end extension length 825 in a range from 1.50 inches to 2.00 inches from the YZ plane toward the toe end 150 . For example, the first component sole toe extension 720 may have a first component sole toe end extension length 825 toward the toe end 150 of 1.50 inches, 1.60 inches, 1.70 inches, 1.80 inches, 1.90 inches, or 2.00 inches. ) can have In some embodiments, the first component sole heel end extension 710 may have a first component sole heel end extension length 835 in a range from 0.90 inches to 1.40 inches from the YZ plane toward the heel end 160 . For example, the first component sole heel end extension 710 may extend 0.90 inches, 1.10 inches, 1.20 inches, 1.30 inches, or 1.40 inches. The first component sole rear extension 500 may be between 2.30 inches and 2.90 inches measured from the striking surface return 177 . For example, the first component sole rear extension 500 may extend a distance of 2.30 inches, 2.40 inches, 2.50 inches, 2.60 inches, 2.70 inches, 2.80 inches, or 2.90 inches from the striking face return portion 177 . there is.

Moving the first component sole rear extension closer to the toe end 150 or heel end 160 of the golf club head 100 is one means of manipulating the mass properties of the assembled golf club head to alter ball flight. provides When manufacturing the first component 300 , moving the first component sole rear extension 500 toward the toe end 150 or heel end 160 of the golf club 100 , the mass of the assembled golf club head characteristics will change. When the first component sole rear extension 500 is moved toward the toe end 150 by reducing the first component sole toe end extension length 825 , the center of gravity of the golf club head 100 is also reduced to the toe end 150 . ) will be moved to the side. When the first component sole rear extension 500 is moved toward the heel end 160 of the golf club head 100 , the center of gravity of the golf club head 100 will also be moved toward the heel end 160 .

The return portion of the first component 300 may have a thickness that extends between an outer surface and an inner surface of the return portion. The thickness of the first component may range from 0.015 inches to 0.040 inches. In other embodiments, the thickness of the first component is from 0.010 inches to 0.040 inches, 0.010 inches to 0.020 inches, 0.015 inches to 0.025 inches, 0.020 inches to 0.030 inches, 0.025 inches to 0.035 inches, 0.030 inches to 0.040 inches, 0.040 inches to 0.10 inches, or 0.10 inches to 0.25 inches. For example, the thickness of the first component may be 0.010 inches, 0.015 inches, 0.020 inches, 0.025 inches, 0.030 inches, 0.035 inches, or 0.040 inches. The thickness of the first component is the striking surface 170 , the first component crown portion 420 , the first component sole portion 310 , the first component sole heel extension 710 , the first component sole toe extension 720 . ), and the first component sole rear extension mass 510 .

The first component 300 includes a surface area ranging from 27-41 inches ² of the total surface area of the golf club head 100 . In some embodiments, the surface area of the first component 300 is 25-43 inches ² , 25-28 inches ² , 28-31 inches ² , 31-34 inches ² , 34-37 inches ² , 37-40 inches ² , or in the range of 40-43 inches ² . For example, the surface area is 25 inches ² , 27 inches ² , 29 inches ² , 31 inches ² , 33 inches ² , 35 inches ² , 37 inches ² , 39 inches ² , 41 inches ² or 43 inches ² .

The first component 300 may include a material such as steel, tungsten, aluminum, titanium, vanadium, chromium, cobalt, nickel, another metal, or a metal alloy. In some embodiments, the first component 300 may include a Ti-8Al-1Mo-1V alloy. In many embodiments where golf club head 100 is a driver-type club head, first component 300 may include a titanium material. In many embodiments where the golf club head 100 is a fairway wood-type club head, the first component 300 may include a steel material.

In many embodiments, the first component 300 may be cast. In other embodiments, first component 300 may be formed by forging, pressing, rolling, extrusion, machining, electroforming, 3D printing, or any suitable forming technique. 15 , in an embodiment in which the first component 300 is cast, the first component 300 includes one or more heel end cast support bars 1510 and one or more toe end cast support bars 1512 . It may further include a plurality of cast support bars.

1) first component rear sole extension

As noted above, the first component includes a striking face and a striking face redundancy. This portion of the golf club head receives and distributes the impact force as the golf club strikes the ball. The rear extension 500 is integrally formed with the remainder of the first component and extends from the sole portion of the striking face return portion 810 . In addition, the mass of the rear extension 500 resists the torque force caused by the eccentric striking against the striking surface. In some embodiments, the first component sole toe end extension 720 and the first component sole heel end extension 710 may have a constant width from front to back parallel to the striking surface 170 . In other embodiments, the toe end extension 720 and heel end extension 710 may have a variable width, increasing and/or decreasing in width from the toe end 150 and heel end 160 sides. In some embodiments, the first component sole toe end extension 720 and heel end extension 710 may have a width ranging from 1.0 inches to 1.5 inches. For example, toe end extension 720 and heel end extension 710 may be 1.00 inches, 1.10 inches, 1.20 inches, 1.30 inches, 1.40 inches, or 1.50 inches.

In some embodiments, the first component sole rear extension 500 increases in width, decreases in width, and/or is constant from the rear boundary of the striking face return sole portion 810 toward the rear end 180 . It may have a width 507 . In some embodiments, the rear end extension 500 may have a width 507 in the range of 1.0 inches to 3.5 inches. For example, the rear end extension may be 1.0 inch, 1.25 inch, 1.50 inch, 1.75 inch, 2.00 inch, 2.25 inch, 2.50 inch, 2.75 inch, 3.0 inch, 3.25 inch or 3.50 inch. In some embodiments, the rear extension 500 has a variable width in an anterior-posterior direction. Specifically, the rear extension portion 500 may have a width that increases in the front-rear direction. In this embodiment, the width of the rear extension 500 has a minimum value adjacent the striking face return sole portion 810 and a maximum value adjacent the rear of the club head. Increasing the width of the rear extension 500 behind the club head allows the rear extension 500 to support a weight or weight system. Altering the width of the rear extension 500 so that the minimum width is adjacent the striking surface return sole portion 810 will reduce the mass adjacent the striking surface return portion and cause this reduced weight to be redistributed around the club head. can In another embodiment, the rear extension 500 may have a width that decreases in the anterior-posterior direction. Reducing the width of the rear extension to the rear of the club head may provide additional structural support for the weight or weight system attached to the rear extension 500 .

In some embodiments as illustrated in FIG. 1 , the first component sole rear extension 500 extends in a vertical orientation with respect to the striking surface 170 centered between the toe end 150 and the heel end 160 . can be In other embodiments, the rear extension 500 may extend in an orientation closer to the toe end 150 or heel end 160 . The rear extension 500 may be offset toward the heel end 160 from 0.05 inches to 1.0 inches. For example, the rear extension 500 may be offset 0.1 inches, 0.2 inches, 0.3 inches, 0.4 inches, 0.5 inches, 0.6 inches, 0.7 inches, 0.8 inches, 0.9 inches, or 1.0 inches toward the heel end 160 . . The first component sole rear end extension 500 may be offset from 0.05 inches to 1.0 inches toward the toe end 150 . For example, the rear extension 500 may be offset 0.1 inches, 0.2 inches, 0.3 inches, 0.4 inches, 0.5 inches, 0.6 inches, 0.7 inches, 0.8 inches, 0.9 inches, or 1.0 inches.

When the first component sole rear end extension 500 is offset toward the toe end 150 , the center of gravity of the golf club head 100 may be offset toward the toe end 150 by 0.150 inches. For example, the center of gravity is 0.010 inches, 0.020 inches, 0,030 inches, 0.040 inches, 0.050 inches, 0.060 inches, 0.070 inches, 0,080 inches, 0.090 inches, 0.100 inches, 0.110 inches, 0.120 inches, 0.130 inches toward the toe end 150 side. It can be offset by inches, 0.140 inches, or 0.150 inches. When the first component sole rear end extension 500 is offset toward the heel end 160 , the center of gravity of the golf club head 100 may be offset toward the heel end 160 by 0.150 inches. For example, the center of gravity is 0.010 inches, 0.020 inches, 0,030 inches, 0.040 inches, 0.050 inches, 0.060 inches, 0.070 inches, 0,080 inches, 0.090 inches, 0.100 inches, 0.110 inches, 0.120 inches, 0.130 inches toward the heel end 160 side. It can be offset by inches, 0.140 inches, or 0.150 inches.

Another means of manipulating the mass properties of the golf club head is to change the angle of the rear sole extension relative to the striking surface of the first component. The first component sole back extension toe angle 850 and the first component sole back extension heel side angle 855 are complementary angles (ie, the two angles add up to 180 degrees). In one embodiment, the toe side angle 850 and the heel side angle 855 are each 90 degrees, so that the rear extension 500 is essentially perpendicular to the striking surface 170 . In alternative embodiments, toe side angle 850 and heel side angle 855 may vary between 45 degrees and 135 degrees, respectively, as long as these two angles are continuously complementary. For example, toe side angle 850 may be 100 degrees, while heel side angle 855 may be 80 degrees complementary. In this example, the mass 510 is angled toward the heel end 180 of the golf club head 100 . Other combinations of toe angle 850 and heel angle 855 may be 110 and 70 degrees, 120 and 60 degrees, 130 and 50 degrees, or 135 and 45 degrees. The center of gravity of the golf club head will be offset towards the rear mass 510 location. For example, the center of gravity is 0.010 inches, 0.020 inches, 0,030 inches, 0.040 inches, 0.050 inches, 0.060 inches, 0.070 inches, 0,080 inches, 0.090 inches, 0.100 inches, 0.110 inches, 0.120 inches, 0.130 inches toward the heel end 160 side. It can be offset by inches, 0.140 inches, or 0.150 inches. In a similar manner, the toe-side angle may decrease while the heel-side angle may increase. For example, the combination of the toe angle 850 and the heel angle may be 80 degrees and 100 degrees, 70 degrees and 110 degrees, 60 degrees and 120 degrees, 50 degrees and 130 degrees, or 45 degrees and 135 degrees. For example, the center of gravity is 0.010 inches, 0.020 inches, 0,030 inches, 0.040 inches, 0.050 inches, 0.060 inches, 0.070 inches, 0,080 inches, 0.090 inches, 0.100 inches, 0.110 inches, 0.120 inches, 0.130 toward the toe end 160 side. It can be offset by inches, 0.140 inches, or 0.150 inches. This angular offset may be desirable to position the rear mass further rearward, toward the heel side portion or the rear toe side portion to position the club head center of gravity in a direction that affects ball flight characteristics. Other angular offsets in other embodiments may differently combine the first component sole rear extension toe angle 850 and the first component sole rear extension heel side angle 855 differently, which may result in different club head center of gravity positions. and other ball flight characteristics.

2) first component rear sole extension rear mass

As discussed above, the first component comprises a majority of the mass of the assembled golf club head. The rear extension 500 allows a portion of the golf club mass to be positioned in the sole of the club head away to the rear side of the club head. The rear extension 500 has a mass at the back of the golf club head so that the mass therein can further influence the CG and MOI of the golf club head. The first component sole rear extension mass 510 alone may have from 20% to 35% of the total mass of the golf club head 100 . Placing this mass at the rearmost of the rear extension 500 is an important aspect for controlling the mass properties of the golf club head 100 during manufacture of the first component 300 .

Referring to FIG. 9 , the first component sole rear extension mass 510 includes a threaded receiver 545 , one or more weight recess tabs 546 , and a heel side outer boundary 910 and a toe side outer boundary 915 . ) and a mass portion 510 having a front outer boundary 918 .

Referring to FIG. 10 , the mass part 510 further includes a plurality of inner ribs 520 having an inner rib width 523 . The plurality of inner ribs 520 may include two ribs, three ribs, four ribs, five ribs, or more than five ribs. A plurality of inner ribs 520 mate with or attach to the inner surface of the separable weight recess 540 of the rear extension mass. The inner ribs 520 can reduce unwanted vibrations in the mass 510 , which is desirable because a significant portion of the mass of the golf club head 100 is located too far behind the golf club head. The mass 510 includes a vertical lip 750 having a vertical lip height 1150, a mass trailing edge shelf 1042 having a shelf length 1048 and a shelf height 1044 and a shelf width 1046. include more The shelf length 1048 is approximately equal to the rear extension width 507 and varies as the width of the mass 510 changes.

Shelf 1042 provides a mating surface for a portion of the second component when the first and second components are coupled to form an assembled golf club head. The mass 510 further includes an inner anterior boundary 1050 and a vertical lip length 1052 .

Referring to FIG. 8 , the shape of the rear mass 510 is bisected by the YZ plane 800 . Referring to FIG. 11 , the mass part 510 further includes an inner length 1110 , a maximum height 1112 of the mass part, and a vertical lip height 1150 . The inner rib further includes a rib height 1120 and a rib length 1122 .

The inner rib width 523 may range from 0.025 inches to 0.100 inches. For example, the inner rib width 523 may be 0.02 5 inches, 0.050 inches, 0.075 inches, or 0.100 inches. The inner rib height 1120 ranges from 25% to 100% of the separable weight recess depth 1216 . The inner rib length 1122 may range from 0.100 inches to 1.500 inches. For example, the inner rib length 1122 may be 0.100 inches, 0.200 inches, 0.300 inches, 0.400 inches, 0.500 inches, 0.600 inches, 0.700 inches, 0.800 inches, 0.900 inches, 1.000 inches, 1.100 inches, 1.200 inches, 1.300 inches; It may be 1.400 inches or 1.500 inches.

The mass 510 has a mass maximum height 1112 located approximately along the top portion of the mass vertical lip 750 . The mass portion 510 decreases in thickness as it approaches the heel-side outer boundary 910 , the toe-side outer boundary 915 , and the front outer boundary 918 . The maximum height 1112 of the mass part has the maximum thickness of the mass part 510 . The maximum thickness of the mass portion 510 may be in the range of 0.40 inches to 0.70 inches. For example, the maximum thickness of the mass portion 510 may be 0.40 inches, 0.50 inches, 0.60 inches, or 0.70 inches.

3) Detachable and buried weights of the first component

A separable weight recess and a separable weight are provided for further control of the mass properties of the assembled golf club head, wherein the detachable weight mass can fine tune the mass properties of the golf club head at the point of assembly. The separable weight recess 540 further includes a plurality of separable weight recess tabs. The plurality of separable weight recessed tabs may be two tabs, three tabs, four tabs, five tabs, or more than five tabs.

Referring to FIG. 12 , it may be desirable to further increase the rearmost mass disposed of the golf club head. The mass part 510 further includes a buried weight recess 1220 . Accordingly, the buried weight recess 1220 and the buried weight 1220 (embedded weight recess) 1220) may be provided.

Referring to FIG. 13 , the separable weight 1300 may include a material such as steel, tungsten, aluminum, titanium, vanadium, chromium, cobalt, nickel, other metals, metal alloys, composite polymer materials, or any combination thereof. can In some embodiments, the sole weight may be tungsten. The separable weight 1300 has a mass.

The mass of the separable weight 1300 may range from 1.0 g to 20.0 g. For example, the mass of the separable weight 1300 may be 1.0 g, 1.5 g, 2.0 g, 3.0 g, 4.0 g, 5.0 g, 6.0 g, 7.0 g, 8.0 g, 9.0 g, 10.0 g, 11.0 g, 12.0 g. g, 13.0 g, 14.0 g, 15.0 g, 16.0 g, 17.0 g, 18.0 g, 19.0 g, or 20.0 g.

8 and 13 , the separable weight 1300 is configured to be received within the separable weight recess 540 . The separable weight 1300 further includes a through hole approximately in the center of the separable weight 1300 . The through hole is configured to receive a detachable weight threaded fastener 1320 such that the threaded fastener 1320 is threadedly received in the threaded receiver boss 544 to release the detachable weight 1300 into the separable weight recess may be fixed within 540 .

Referring to FIG. 14 , the separable weight 1300 further includes a thickness 1430 , a plurality of separable weight offsets 1434 , and a plurality of separable weight side grooves 1438 . The plurality of separable weight offsets 1434 may be two offsets, three offsets, four offsets, five offsets, or more than five offsets. The plurality of separable weight side grooves 1438 may be two grooves, three grooves, four grooves, five grooves, or more than five grooves. The offset 1434 is configured such that the separable weight 1300 can be slightly offset from the wall of the separable weight recess 540 when the separable weight 1300 is received within the separable weight recess 540 . The separable weight side groove 1438 is configured to receive the separable weight recess tab when the separable weight 1300 is received within the separable weight recess 540 .

16A and 16B , the embedded weight 1600 has a mass. The mass of the embedded weight 1600 may range from 1.0 g to 20.0 g. For example, the mass of the buried weight 1600 is 1.0 g, 2.0 g, 3.0 g, 4.0 g, 5.0 g, 6.0 g, 7.0 g, 8.0 g, 9.0 g, 10.0 g, 11.0 g, 12.0 g, 13.0 g g, 14.0 g, 15.0 g, 16.0 g, 17.0 g, 18.0 g, 19.0 g, or 20.0 g.

The embedded weight 1600 includes a tungsten material, a tungsten alloy material, a polymer matrix having tungsten particles embedded therein, or any other suitable material having a density greater than the first material density. The buried weight 1600 is configured to fit within the buried weight recess 1220 and be permanently secured therein. The embedded weight 1600 may be permanently attached using an adhesive, either by wedge or other press fit method, or using suitable mechanical attachment means.

B) second component

The golf club head 100 includes a first component 300 and a non-metallic lightweight second component 200 configured to be joined together to form a hollow golf club head 100 . 1F and 2 , the second component 200 includes a second component crown portion 205 , a second component sole heel portion 214 , a second component sole toe portion 212 , and a second component peripheral edge. 220 , a second component sole rear cutout 240 having a second component sole rear cutout width 242 and a second component sole rear cutout height 244 , and a second component trailing edge portion 230 . ) is included. In some embodiments not shown, the second component may include only a portion of the crown. In these embodiments, the sole back cutout 240 may wrap into the crown 205 .

1-4 , the second component crown portion 205 wraps over the trailing edge 130 to integrally form a portion of the sole complementary to the first component. A second component heel and toe sole portion 214 , 212 formed by the second component 200 is formed between the toe end extension and the rear end extension of the first component and between the rear end extension and the heel end extension of the first component. It may have a positioned triangular shape. In other embodiments, the sole portion formed by the second component 200 is circular, square, elliptical, any other polygonal, or has at least one curved surface complementary to the sole portion of the first component 100 . may have a shape. The second component 200 may comprise a single monolithic piece formed entirely together without the need for further bonding. For example, the second component 200 may be formed by injection molding a single monolithic piece comprising a single material.

Alternatively, the second component 200 may be subsequently permanently joined by an adhesive, sonic welding, fusion welding, or other permanent bonding method suitable to the material used to form the plurality of individually formed parts. It may include a plurality of separately formed parts. For example, the second component crown portion 205 , toe portion 212 , and heel portion 214 may be individually formed from the same or different materials. The second component portions may then be adhesively joined to form the complete second component 200 . This formation of the individual parts to be joined later can be advantageous when using materials such as bi-directional carbon fiber prepreg materials. Bidirectional carbon fiber prepregs do not readily accommodate certain small curvatures and thus cannot be easily formed into a single piece to arrive at the desired second component 200 shape. Using such materials may arise the need to form separate sole portions 212 , 214 that are later joined to the overlying portion of the second component 200 by adhesive or other means.

The second component of golf club head 100 may have a thickness. The thickness of the second component may range from 0.045 inches to 0.500 inches. In some embodiments, the thickness of the second component is 0.045-0.055 inches, 0.045-0.65 inches, 0.050-0.060 inches, 0.055-0.065 inches, 0.060-0.070 inches, 0.065-0.075 inches, 0.070-0.080 inches, 0.075-0.085 inches , 0.080-0.090 inches, 0.085-0.095 inches, 0.080-0.090 inches, 0.080-0.090 inches, 0.085-0.095 inches, 0.090-0.100 inches, 0.100-0.200 inches, 0.200-0.300 inches, 0.300-0.400 inches, or 0.400-0.500 inches may be in the range of For example, the thickness of the second component can be 0.008 inches, 0.010 inches, 0.015 inches, 0.020 inches, 0.025 inches, 0.030 inches, 0.035 inches, 0.040 inches, 0.045 inches, 0.050, 0.055 inches, 0.060 inches, or 0.065 inches . The thickness of the second component may further vary from the crown, sole, heel end, toe end and trailing edge. For example, in a single embodiment, the thickness of the second component may be different across the crown, sole, heel end, toe end, and trailing edge portion of the second component. In some embodiments, the second component further includes an inner rib. The thickness of the second component inner rib may be the same as the remainder of the second component or up to 0.010 inches thicker than the other portion of the second component 200 .

In some embodiments, such as the embodiment of FIG. 3 , the second component 200 includes a plurality of second component reduction sections 250 having one or more crown reduction sections 255 and one or more sole reduction sections 257 . ) is further included. The second component 200 further includes a plurality of second component inner ribs 260 having one or more crown inner ribs 262 and one or more sole inner ribs 264 . The plurality of inner ribs 260 may be two ribs, three ribs, four ribs, five ribs, or more than five ribs. Crown portion 262 and sole portion 264 inner ribs are between second component thickness reduction section 250 . Crown portion 262 and sole portion 264 inner ribs may have a maximum thickness of second component 200 . In some embodiments, the second component inner rib 260 may be similar to a rib as described in US Application Serial No. 15/076,511 (now US Pat. No. 9,700,768). The second component inner rib 260 may reduce stress on the golf club head 100 and improve acoustics during impact.

The plurality of second component thickness reduction sections 250 have a thickness. The thickness of the plurality of second component thickness reduction sections 250 may range from 0.008 inches to 0.035 inches. In other embodiments, the thickness of the reduced thickness section 250 may range from 0.008-0.015 inches, 0.010-0.020 inches, 0.015-0.025 inches, 0.020-0.030 inches, or 0.025-0.035 inches. For example, the thickness of the reduced thickness section 250 may be 0.008 inches, 0.010 inches, 0.015 inches, 0.020 inches, 0.025 inches, 0.030 inches, or 0.035 inches. In some embodiments, the second component is free of internal ribs and reduced thickness sections.

The second component has a mass ratio of the total mass of the golf club head 100 . The mass fraction of the second component may range from 4% to 15% of the total mass of the golf club head 100, or may be approximately 10g to 25g. In other embodiments, the mass fraction of the second component may range from 4% to 15%. For example, the mass fraction of the second component may be 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13% of the total mass of the golf club head 100 . , 14% or 15%.

The second component has an external surface area in the range of 17-25 inches ² . In some embodiments, the surface area of the second component may range from 15-27 inches ² , 15-18 inches ² , 18-21 inches ² , 21-25 inches ² . For example, the surface area of the second component may be 15 inches ² , 17 inches ² , 19 inches ² , 21 inches ² , 23 inches ² or 25 inches ² .

1) second component material

The second component 220 may include a composite formed of a polymeric resin and reinforcing fibers. The polymer resin may include a thermosetting resin or a thermoplastic resin. More specifically, in embodiments with a thermoplastic resin, the resin may include a thermoplastic polyurethane (TPU) or a thermoplastic elastomer (TPE). For example, the resin may be polyphenylene sulfide (PPS), polyetheretheretherketone (PEEK), polyimide, polyamide such as PA6 or PA66, polyamide-imide, polyphenylene sulfide (PPS), polycarbonate , engineered polyurethanes and/or other similar materials. The reinforcing fibers may include carbon fibers (or chopped carbon fibers), glass fibers (or chopped glass fibers), graphene fibers (or chopped graphene fibers), or any other suitable filler material. In another embodiment, the second component composite material may include a bead (eg, glass bead, metal bead) or powder (eg, tungsten powder) for weighting. In other embodiments, the composite material may include optional reinforcing fillers that add strength, durability, and/or weighting.

The polymer resin should preferably incorporate at least one polymer having material strength and/or strength/weight ratio properties high enough to withstand typical use while providing weight savings benefits to the design. In particular, designs and materials that efficiently withstand the stresses transferred during impact between the striking surface and the golf ball without substantially contributing to the total weight of the golf club head are important. Generally, polymers are characterized by a tensile strength at yield greater than about 60 MPa (net). When the polymeric resin is combined with the reinforcing fibers, the resulting composite material has a tensile strength at yield greater than about 110 MPa, greater than about 180 MPa, greater than about 220 MPa, greater than about 260 MPa, greater than about 280 MPa, or greater than about 290 MPa can In some embodiments, suitable composite materials may have a tensile strength at yield of from about 60 MPa to about 350 MPa.

In some embodiments, the reinforcing fibers include a plurality of dispersed, discontinuous fibers (ie, “cut fibers”). In some embodiments, the reinforcing fibers comprise discontinuous “long fibers” having a designed fiber length of between about 3 mm and 14 mm. For example, in some embodiments, the fiber length is about 12.7 mm (0.5 inches) prior to the molding process. In another embodiment, the reinforcing fibers comprise discontinuous “short fibers” having a designed fiber length of between about 0.01 mm and 3 mm. It should be noted that in both cases (short fiber or long fiber), the given length is a premixed length, and due to breakage during the molding process, some fibers may actually be shorter than the stated range in the final component. In some configurations, the discontinuously chopped fibers may be characterized by an aspect ratio (eg, length/diameter of the fiber) greater than about 10 or more preferably greater than about 50 and less than about 1500. Regardless of the particular type of discontinuous chopped fibers used, in some configurations, the composite material can have a fiber length of from about 0.01 mm to about 14 mm.

The composite material may have a polymeric resin content of from about 40% to about 90% by weight or from about 55% to about 70% by weight. The composite material of the second component may have a fiber content of from about 10% to about 60% by weight. In some embodiments, the composite material has a fiber content of from about 20% to about 50% by weight, from 30% to 40% by weight. In some embodiments, the composite material comprises from about 10% to about 15% by weight, from about 15% to about 20% by weight, from about 20% to about 25% by weight, from about 25% to about 30% by weight, about 30% by weight wt% to about 35 wt%, about 35 wt% to about 40 wt%, about 40 wt% to about 45 wt%, about 45 wt% to about 50 wt%, about 50 wt% to about 55 wt% or about 55 wt% It has a fiber content of from weight percent to about 60 weight percent.

The density of the composite material forming the second component may range from about 1.15 g/cc to about 2.02 g/cc. In some embodiments, the composite material density ranges from about 1.30 g/cc to about 1.40 g/cc, or from about 1.40 g/cc to about 1.45 g/cc. The composite material may have a melting temperature of from about 210°C to about 280°C. In some embodiments, the composite material may have a melting temperature of from about 250°C to about 270°C.

In some embodiments, the composite material comprises long fiber reinforced TPU. The long fiber TPU may comprise about 40 weight percent long fiber. Long fiber TPU may exhibit a higher modulus of elasticity than carbon short fiber compounds. Long fiber TPU can withstand high temperatures, making it suitable for use in golf club heads that are used and/or stored in hot climates. Long fiber TPU also exhibits high toughness and can be easily used as a replacement for conventional metal parts. In some embodiments, the long fiber TPU has a tensile modulus of from about 26,000 MPa to about 30,000 MPa or from about 27,000 MPa to about 29,000 MPa. In some embodiments, the long fiber TPU has a flexural modulus of from about 21,000 MPa to about 26,000 MPa or from about 22,000 MPa to 25,000 MPa. The long fiber TPU material may exhibit a tensile elongation at break of from about 0.5% to about 2.5%. In some embodiments, the tensile elongation of the composite TPU material is from about 1.0% to about 2.0%, from about 1.2% to about 1.4%, from about 1.4% to about 1.6%, from about 1.6% to about 1.8%, from about 1.8% to about 2.0 % can be

Strength and weight are the two main properties under consideration for composite materials, but suitable composite materials can also present secondary benefits. For example, PPS and PEEK are two exemplary thermoplastic polymers that meet the strength and weight requirements of this design. However, unlike many other polymers, the use of PPS or PEEK is more advantageous due to its inherent acoustic properties. In particular, under many circumstances, PPS and PEEK emit a generally metallic acoustic response upon impact. As such, by using PPS or PEEK polymers, the present design may utilize the strength/weight advantages of the polymers while not compromising the desirable metallic club head acoustics upon impact.

In many embodiments, the second component 200 of the golf club head 100 may be injection molded. The second component 200 may be injection molded into a type of composite material comprising both a polymer resin and reinforcing fibers. The reinforcing fibers may be embedded in the resin prior to molding the second component. The composite material including both resin and fiber may be provided in the form of pellets. The pellets can be melted and then poured into an empty mold to form the second component. In other embodiments, the second component may be formed by extrusion, injection blow molding, 3D printing, or any other suitable molding means.

In embodiments employing injection molding, the temperature of the mold used to form the second component from the composite material may ideally be maintained between about 60°C and 90°C. For example, the temperature of the mold may be about 75°C. In an alternative embodiment, the second component 200 may include a fiber reinforced composite (FRC) material. FRC materials generally include one or more layers of unidirectional or multidirectional fiber fabrics extending across a larger portion of the polymer. Unlike reinforcing fibers that may be used in filled thermoplastic (FT) materials, the maximum dimensions of fibers used in FRC may be substantially larger or longer than those used in FT materials, and may be provided as a continuous fabric separate from the polymer. It can have sufficient size and characteristics to make it possible. When formed into a thermoplastic polymer, although the polymer is free to flow when melted, the continuous fibers included generally do not.

FRC materials are generally formed by arranging fibers in a desired arrangement and then impregnating the fiber material with an amount of polymeric material sufficient to provide stiffness. In this way, the FT material can have a resin content greater than about 45% by volume, or more preferably greater than about 55% by volume, while the FRC material preferably has less than about 45% by volume, or more preferably about 35% by volume. % resin content. FRC materials traditionally use a two-part thermoset epoxy as the polymer matrix, but thermoplastic polymers can also be used as the matrix. In many cases, the FRC material is prepared in advance prior to final fabrication and this intermediate material is often referred to as a prepreg. When a thermosetting polymer is used, the prepreg is partially cured to an intermediate form, and final cure occurs when the prepreg is formed to its final form. When a thermoplastic polymer is used, the prepreg may comprise a cooled thermoplastic matrix that may be subsequently heated and molded into a final shape.

The second component 200 may be substantially formed of a molded fiber reinforced composite material comprising a woven glass or carbon fiber reinforced layer embedded in a polymer matrix. In this embodiment, the polymer matrix is preferably a thermoplastic material such as, for example, polyphenylene sulfide (PPS), polyether ether ketone (PEEK), or a polyamide such as PA6 or PA66. In other embodiments, the second component 200 is instead made entirely of glass beads or discontinuous glass, carbon, or a thermoplastic material such as, for example, polyphenylene sulfide (PPS), polyether ether ketone (PEEK) or polyamide. It can be formed of a filled thermoplastic material comprising an aramid polymer fiber filler embedded in it. In another embodiment, the second component 200 may have a mixed material construction comprising both a filled thermoplastic material and a formed fiber reinforced composite material.

The second component 200 may have a mixed material construction comprising both a fiber reinforced thermoplastic composite elastic layer (not shown) and a molded thermoplastic structural layer (not shown). In some preferred embodiments, the molded thermoplastic structural layer comprises glass beads embedded throughout a thermoplastic material such as, for example, polyphenylene sulfide (PPS), polyether ether ketone (PEEK), or a polyamide such as PA6 or PA66. or a filled thermoplastic material comprising discontinuous glass, carbon or aramid polymer fiber fillers. The elastic layer is then woven glass, carbon fiber, or aramid embedded in a thermoplastic polymer matrix comprising, for example, polyphenylene sulfide (PPS), polyether ether ketone (PEEK), or a polyamide such as PA6 or PA66. a polymer fiber reinforced layer. In one particular embodiment, the elastic layer of the second component 200 can include a woven carbon fiber fabric embedded in polyphenylene sulfide (PPS), and the structural layer of the second component 200 is a polyphenylene filled polyphenylene. sulfide (PPS) polymers.

In alternative embodiments, the second component 200 may have one or more internal cross-connection members (not shown). The cross-connection member may provide additional structural stiffness or acoustic control. The inner cross connecting member may include a member connecting non-adjacent portions of the interior of the second component 200 . For example, the cross-connection member can connect the inner surface of the second component crown portion 205 to either the second component sole heel portion 214 or the second component sole toe portion 212 . The inner cross-connection member may have a length extending completely from the inner surface of the foremost edge of the second component 200 to the inner surface of the second component trailing edge portion 230, or the inner cross-connection member may be connected to the second component It may have a length that does not fully extend from the inner surface of the leading edge of 200 to the inner surface of the second component trailing edge portion 230 . The inner cross-connection member has a thickness. The thickness of the inner cross-connection member may range from 0.01 inches to 0.25 inches. For example, the thickness of the inner cross-connect member may be 0.01 inches, 0.05 inches, 0.10 inches, 0.15 inches, 0.20 inches, or 0.25 inches.

I) Second embodiment of golf club head

A second embodiment of a golf club head 2100 shown in FIG. 17 includes a first component 2300 having a weight channel and a second component 2200 coupling to the first component 2300 . The first component 2300 of the golf club head 2100 may be similar to the first component 300 of the golf club head 100 except for the weight system. The second component 2200 of the golf club head 2100 may be similar to the second component of the golf club head 100 described above. The golf club head 2100 includes a striking surface 2170, a striking surface return portion 2177, a hosel 2140, a crown 2110, a sole 2120, a heel end 2160, a toe end 2150, a rear end ( 2180 , a trailing edge 2130 , hosel 2140 , and sole hosel adapter attachment recess 2195 .

18 , the first component 2300 can include a rear extension 2500 . The rear extension 2500 may include a portion of the sole 2120 . The rear extension 2500 includes a weight channel 2540 . Weight channel 2540 is exposed at rear end 2180 and sole 2120 of club head 2300 .

The weight channel 2540 is configured to receive the movable weight 2350 in one of three positions. Weight 2350 may be secured to weight channel 2540 by threaded fasteners 2320 . The weight 2350 may be disposed in a toe-side position, a central position, or a heel-side position. The weight channel 2540 includes a mounting wall 2542 and a sole wall 2550 . Mounting wall 2542 may be oriented approximately perpendicular to sole 2120 . The sole wall 2550 may be oriented approximately parallel to the main sole 2120 , but is inserted a distance equal to the height of the mounting wall 2542 . The movable weight 2350 may have an elongated trapezoidal shape or other suitable weight. The movable weight 2350 may include an inward facing wall and a connecting wall. The inward facing wall is flush with the sole wall 2550 of the weight channel 2540 . The connecting wall is flush with the mounting wall 2542 when the weight 2350 is attached to one of the three locations.

The mounting wall 2542 of the weight channel 2540 includes three screw holes corresponding to three weight locations. Mounting wall 2542 includes a toe-side threaded hole 2544 , a central threaded hole 2546 , and a heel-side threaded hole 2548 . The movable weight 2350 is positioned in a toe position by placing the connecting wall of the weight 2350 flush with the mounting wall 2542 of the channel 2540 and securing the fastener 2320 to the toe screw hole 2544 . do. The movable weight 2350 is positioned in a central position by placing the connecting wall of the weight 2350 flush with the mounting wall 2542 of the channel 2540 and securing the fastener 2320 to the central screw hole 2546 . The movable weight 2350 is positioned in a heel-side position by placing the connecting wall of the weight 2350 flush with the mounting wall 2542 of the channel 2540 and securing the fastener 2320 to the heel-side threaded hole 2548 . do.

When movable weight 2350 is positioned in a central position as shown in the sole side view of FIG. 19 , golf club 2100 is configured to provide no draw or fade bias. When weight 2350 is positioned in the toe position as shown in FIG. 20, weight 2350 provides a fade bias to the club head. When the weight 2350 is positioned in the heel side position as shown in FIG. 21 , the weight 2350 provides a draw bias to the club head.

The first component 2300 includes a sole rear extension 2500 , a striking surface return crown portion 2400 , and a striking surface return sole portion 2810 . The striking surface return sole portion 2810 includes a heel extension 2830 and a toe extension 2820 . Heel extension 2830 includes a rear wall 2832 . The toe extension 2820 includes a rear wall 2822 .

The first component rear extension 2500 includes a toeside wall 2522 and a heelside wall 2532 connecting the weight channel 2540 to the striking face sole return 2810 . The rear extension toeside wall 2522 and the toe extension rear wall 2822 may define a toeside wall angle 2850 . The toe side wall angle 2850 may range between 45 degrees and 180 degrees. The rear extension heel side wall 2532 and the heel extension rear wall 2832 may define a heel side wall angle 2855 . The heel side wall angle 2855 may range between 45 degrees and 180 degrees. In some embodiments, toeside wall angle 2850 is approximately equal to heelside wall angle 2855 . In another embodiment, the toeside wall angle 2850 and the heelside wall angle 2855 are different. In some embodiments, toeside wall angle 2850 and heelside wall angle 2855 are complementary angles (their sum equal to approximately 180 degrees). In these embodiments, toe extension rear wall 2822 and heel extension rear wall 2832 are positioned in approximately the same plane (toe rear wall 2822 and heel rear wall 2832 are approximately parallel when viewed from the sole). Do). For example, toe wall angle 2850 may be an acute angle, while heel wall angle 2855 is an obtuse complement.

19 and 22, some embodiments have obtuse toe wall and heel wall angles 2850 and 2855. Referring to FIG. 23 , some embodiments have toewall and heelside wall angles 2850 and 2855 of approximately 90 degrees. Referring to FIG. 24 , some embodiments have acute toe wall and heel wall angles 2850 and 2855 . Embodiments with obtuse toe and heel side wall angles 2850 and 2855 may smoothly distribute the stress back to the sole 2120 . The obtuse angle can increase the strength of the sole 2120 and support the sole rear extension 2500 . However, embodiments having an acute angle may include a first component having a smaller mass than embodiments having an obtuse or 90 degree angle. Accordingly, embodiments with acute toe and heel side wall angles 2850 and 2855 may allow for improved weighting characteristics, such as high MOI.

The weight channel 2540 extends outwardly beyond the main section of the rear sole extension 2500 as shown in the embodiment of FIGS. 19-21 . In these embodiments where the weight channel 2540 extends to the toe and heel side, the rear extending toe side wall 2522 and the heel side wall 2532 each have a bend adjacent the weight channel 2540 . In other embodiments, as shown in FIG. 22 , the rear extension toe side wall 2522 and the heel side wall 2532 may be straight. In some embodiments, the rear extension toeside wall 2522 may be parallel to the rear extension heelside wall 2532 . In some embodiments, the rear extension toeside wall 2522 may not be parallel to the rear extension heelside wall 2532 .

The rear extension 2500 may be attached to the striking surface return portion 2810 at other locations. This movement of the attachment point may affect the manner in which the rear extension 2500 is inclined relative to the striking face return portion 2810 . The rear extension axis 2504 is proximal to the center of the rear extension 2500 . A rear extension shaft 2504 extends between a front midpoint 2502 of the rear extension and a central threaded hole 2546 of the weight channel 2540 . The rear extension axis 2504 may coincide with and be aligned along the YZ plane. The rear extension axis 2504 may form an angle with the YZ plane and thus may not be aligned with the YZ plane. The rear extension axis 2504 may be offset from the YZ plane and may be parallel to the YZ plane. Anterior midpoint 2502 is located midway between toe side intersection 2824 and heel side intersection 2834 . The toe side intersection 2824 is the point where the toe extension rear wall 2822 intersects and connects with the rear extension toe side wall 2522 . Similarly, heel-side intersection 2834 is the point where heel extension rear wall 2832 intersects and connects with rear extension heel-side wall 2532 . The toe-side and heel-side intersections 2824 , 2834 may be located anywhere along the rear edge of the striking face return sole portion 2810 . In some embodiments, the connections between the toe/heel extension back wall 2822/2832 and the rear extension toe/heel side wall 2522/2532 are filleted, beveled, or chamfered, respectively.

The weight channel 2540 may be centered about the rear extension axis 2504 . The weight channel 2540 may be centered with respect to the YZ plane. The weight channel may be centered about both the rear extension axis 2504 and the YZ plane at the same time. The weight channel may be centered relative to both the rear extension axis 2504 and the YZ plane even if the rear extension axis 2504 does not coincide with the YZ plane. In this case, the rear extension axis 2504 intersects the YZ plane at or about the midpoint of the weight channel 2504 mounting wall 2542 . The weight channel may be centered about the rear end 2180 of the golf club head 2100 .

The toe-side intersection and the heel-side intersection are located at a distance on the rear side of the striking face. The toe-side intersection and the heel-side intersection may be located the same distance behind the striking surface. The toe-side intersection and the heel-side intersection may be located at different distances to the rear of the striking surface. The toe-side intersection may be located more rearward than the heel-side intersection. The heel-side intersection may be located more rearward than the toe-side intersection. The distance between the toe-side intersection and the heel-side intersection on the back side of the striking face may range from 0.1 inches to 2.0 inches. The toe intersection and heel side intersection distances behind the striking face are 0.1 inches, 0.2 inches, 0.3 inches, 0.4 inches, 0.5 inches, 0.6 inches, 0.7 inches, 0.8 inches, 0.9 inches, 1.0 inches, 1.1 inches, 1.2 inches, 1.3 inches , 1.4 inches, 1.5 inches, 1.6 inches, 1.7 inches, 1.8 inches, 1.9 inches, 2.0 inches.

The sole rear extension 2500 of the first component 2300 may be angled relative to the intersecting plane 2840 . 19 and 22-28, the intersecting plane 2840 may extend parallel to the XY plane. Intersection plane 2840 may extend to form an angle with respect to the XY plane. Intersection plane 2840 coincides with toe side intersection 2824 and heel side intersection 2834 . In some embodiments, as shown in FIGS. 19-24 , the rear extension 2500 forms an approximately 90 degree angle between the intersecting plane 2840 and the rear extension axis 2504 when viewed from the sole side. It extends straight backwards so as to In some embodiments, such as the embodiment of FIGS. 25-28 , the intersecting plane 2840 and the rear extension axis 2504 intersect at an angle other than 90 degrees.

The toe axis angle 2860 is measured from the intersecting plane 2840 to the rear extension axis 2504 on the toe side of the rear extension axis 2504 (in the sole side view). The heel side axis angle 2865 is measured from the intersection plane 2840 to the heel side rear extension axis 2504 of the rear extension axis 2504 (in the sole side view). The toe side axis angle 2860 and the heel side axis angle 2865 are complementary angles (sum of 180 degrees).

Referring to FIG. 25 , in some embodiments, the rear extension is at the striking surface return sole portion 2810 closer to the toe end 2150 of the club head 2100 than the heel end 2160 of the club head 2100 . is attached In this embodiment, the toe axis angle 2860 is greater than 90 degrees and the heel axis angle 2865 is less than 90 degrees. The weight channel 2540 remains centered at the rear end 2180 of the golf club head 2100 . Because of the location of the first component rear extension 2500 , the second component 2200 can occupy a larger portion of the heel side of the sole 2120 . More specifically, the second component heel sole portion 2214 may be larger than the second component toe sole portion 2212 .

Referring to FIG. 26 , in some embodiments, the rear extension is at the striking surface return sole portion 2810 closer to the heel end 2160 of the club head 2100 than the toe end 2150 of the club head 2100 . is attached In this embodiment, the toe axis angle 2860 is greater than 90 degrees and the heel axis angle 2865 is less than 90 degrees. The weight channel 2540 remains centered at the rear end 2180 of the golf club head 2100 . Because of the location of the rear extension 2500 of the first component 2300 , the second component 2200 may occupy a larger portion of the toe side of the sole 2120 . More specifically, the second component toe sole portion 2212 may be larger than the second component heel sole portion 2214 . The attachment location of the rear extension may alter the weighting and firing characteristics of the golf club head 2100 .

27 and 28 , in some embodiments, the rear extension may have a variable width. In this embodiment, toe wall angle 2850 and heel wall angle 2855 may not be complementary (the sum may not be 180 degrees). In some embodiments, toe and heel side wall angles 2850 and 2855 may both be acute angles to reduce the weight of the first component and allow for greater perimeter weighting at the club head. In other embodiments, both toe and heel wall angles 2850 and 2855 may be obtuse to increase the durability of the sole and simplify manufacturing assembly of the golf club head 2100 .

The rear extension width 2507 is measured in the heel-toe direction to the rear side of the rear perimeter of the striking face return sole portion 2810 . The rear extension width 2507 is less than the overall width of the sole 2120 of the golf club 2100 . The rear extension width 2507 may range from 25% to 85% of the total width of the sole 2120 . The rear extension width 2507 is 25%, 30%, 35%, 40%, 45%, 50%, 55%, 60%, 65%, 70%, 75%, 80 of the total width of the sole 2120 . % or 85%. The width of the rear extension adjacent the weight channel 2540 may range from 1 inch to 2.5 inches. The rear extension width 2507 between the toe-side intersection 2824 and the heel-side intersection 2834 may range between 1 inch and 5 inches. The rear extension width 2507 may be greater adjacent the weight channel 2540 as shown in FIGS. 27 and 28 , or adjacent the striking face return 2810 as shown in FIGS. 18-22 . could be bigger

29 and 30 , the second component may include a crown portion 2205 , a trailing edge portion 2230 , a sole toe portion 2212 , and a sole heel portion 2214 . Crown portion 2205 connects sole toe portion 2212 and sole heel portion 2214 . Trailing edge portion 2230 connects crown portion 2205 to sole toe and heel portions 2212 and 2214 . Crown portion 2205 , sole toe portion 2212 , and sole heel portion 2214 define a rear cutout 2240 on the sole side of second component 2200 . In some embodiments, such as that shown in FIG. 29 , the rear cutout 2240 is cut only into the sole. In another embodiment, such as that shown in FIG. 20 , the rear cutout 2240 is cut into both sides of the sole and crown portion 2205 . The embodiment cut into both sides of the sole and crown portion 2205 allows more space at the rear end 2180 of the club head 2100 for the weight channel 2540 of the first component 2300 .

The second component sole toe portion 2212 and sole heel portion 2214 may be dimensioned to correspond to the dimensions of the first component 2300 as illustrated in FIGS. 22-28 . For example, the second component sole toe portion 2212 may be approximately the same size as the sole heel portion 2214 when the rear extension 2500 is centered as in the embodiment of FIGS. 22-24 . In embodiments where the rear extension axis 2504 is angled relative to the intersecting plane 2840 , the sole toe portion 2212 is smaller than the sole heel portion 2214 as shown in the embodiments of FIGS. 25 and 26 . or it can be large.

The second component 2200 may be secured to the first component 2300 in a manner similar to that described above for the first golf club head 100 embodiment. The materials of the first 2300 and second 2200 components may also be similar to those described above for the first golf club head 100 embodiment.

II) Manufacturing method

A first embodiment of a method of manufacturing a golf club head 100 includes forming a first component 300 , forming a second component 200 , and applying an adhesive to a first component lip 450 . Step, aligning the second component 200 to the first component 300 , installing the second component 200 to the first component 300 such that the second component 200 covers the lip 450 . and allowing the adhesive to cure to permanently attach the second component 200 to the first component 300 to form the hollow golf club head 100 .

15 , as discussed above, first component 300 further includes a plurality of cast support bars including one or more heel end cast support bars 1510 and one or more toe end cast support bars 1512 . can do. The cast support bar stabilizes the cast part of the first component 300 while the metal cools after casting. The stabilization provided by the cast support bar prevents the front portion of the cast part from folding towards and away from the first component sole rear extension 500 while the cast part cools after casting. The casing support bar is not present in the finished golf club head 100 as it is removed from the cast first component 300 .

An alternative method of manufacturing a golf club head 100 includes casting a first component 300 , forming a wax pattern of the first component 300 , adding a wax support bar to the wax pattern, and a modified providing a wax pattern, casting an article, trimming metal cast support bars 1510 and 1512 , forming a first component 300 , forming a second component 200 , a first component applying adhesive to the lip 450 , aligning the second component 200 to the first component 300 , and positioning the second component 200 such that the second component 200 covers the lip 450 . installing to the first component 300 , allowing the adhesive to cure and permanently attaching the second component 200 to the first component 300 to form the hollow golf club head 100 . When adding the support bar to the wax pattern, the attachment point of the support bar becomes the inner surface of the wax pattern of the first component 300 to prevent damage or distortion of the outer surface of the first component 300 . The advantage of adding a support rod is that the casting of the first component is supported against warpage while it is in the cooling phase after casting.

The first component 300 may be coupled to the second component 200 at the first component lip 450 to form the body of the golf club head 100 . A first component lip 450 comprising a crown portion lip 455 , a sole portion lip 460 and a mass portion vertical lip 750 is configured such that the first component 300 forms the body of the golf club head 100 . It is completely covered by the second component 200 when coupled to the second component 200 . The second component sole back cutout 240 includes a portion of the perimeter edge 220 at the trailing edge portion 230 . When the first component 300 is coupled to the second component 200 at the first component lip 450 (to form the body of the golf club head 100), Some are joined along the mass part trailing edge shelf 1042 .

The first component 300 may be coupled to the second component 200 by an adhesive. In some embodiments, an adhesive such as glue, epoxy, an epoxy gasket, tape (eg, VHB tape), or any other adhesive material is applied to the joint of the second component 200 and the first component lip 450 . can be placed. In some embodiments, first component tab 457 on first component lip 450 and 455 abuts second component 200 to provide a gap between first component lip 450 and 455 and second component 200 . It can leave a gap. This interstitial gap may receive an adhesive. Since the first component tab 457 has a uniform height, the gap gap may have a uniform height or thickness. The height of this uniformly spaced gap can create a uniform coupling between the first component and the second component. In other embodiments, second component 200 may be coupled to first component 300 by fasteners, clips, press-ins, or any other suitable mechanical attachment means (not shown). In another embodiment, the first component 300 may be coupled to the second component 200 by an adhesive along with suitable mechanical attachment means. In another embodiment, the first component 300 is coupled to the second component 200 using laser welding to heat the second component 200 material such that the second component material adheres to the first component 300 material. can be

In some embodiments, when the first component is coupled to the second component to form the golf club head 100 , the surface of the first component 300 is not offset from the surface of the second component 200 . When the first component 300 is coupled to the second component 200 to form the golf club head 100 , the nominal outer surface of the first component is above or above the nominal outer surface of the second component at the junction of the coupling. are not offset downward (ie, the outer surfaces of the first component 300 and the second component 200 are coplanar). A second method of manufacturing a golf club head 100 includes the following steps: (1) forming a first component 300 , (2) providing a second component 200 , (3) fixing the first component (300) to the second component (200), and (4) grinding and finishing the club head. The first steps include casting an unfinished first component, laser cutting away unwanted portions of the unfinished first component, and optionally welding a faceplate to the first component to form the finished first component. may include steps.

Forming the first component 300 in a first step may begin with casting an unfinished version of the first component. The first component may be cast as an entire club head with reduced thickness. Most of the reduced thickness area may be located near the location where the second component will be attached later. The peripheral section around the edge of the reduced thickness region will eventually form the lip of the first component. The unfinished first component is cast with a reduced thickness region because the reduced thickness region helps the first component to maintain its desired shape during the casting process. Casting a first component that does not have a reduced thickness area may cause warpage of the part or other casting quality issues. Thus, casting into a reduced thickness region that is later removed will ensure that the first component retains its desired shape so that the second component will accurately conform to the first component during the third step.

After the unfinished first component is removed from the mold from which it was cast, a laser is used to cut away an unwanted portion of the reduced thickness region, leaving only the peripheral section forming the lip of the second component. The lip may be ground or polished as required. In some embodiments, the striking surface of the club head is integrally cast as part of the first component. In another embodiment, the first component may be cast without a striking face (there are openings or voids in the front of the first component). In these embodiments, the faceplate is provided separately by casting or forging the faceplate from a metallic material. The faceplate may generally be welded, laser welded or swagged to the front opening of the first component.

The second step includes injection molding the second component, providing the composite material (typically in pellet form), melting the composite material, and injecting the molten composite material into a mold to form the unfinished second component. cutting off the spruce, and polishing the gate area to complete the second component. As noted above, the composite material may include a polymeric resin and reinforcing fibers. Composite materials may be provided as pellets containing both resin and fibers. The composite pellets are melted and poured into a mold to form an unfinished second component.

The third step is applying an adhesive (eg, a two-part liquid epoxy) to the first component lip, aligning and placing the second component 200 over the first component lip 450 , and the adhesive is drying may be included. One or more first component tabs 457 on ribs 450 , 455 may provide a clearance gap between first component lip 450 and second component. This interstitial gap may receive an adhesive. Since the first component tab 457 has a uniform height, the gap gap may have a uniform height or thickness. This uniform height of the gap gap can create a uniform coupling between the first component 300 and the second component 200 .

In some embodiments of this second method, a functionalized bonding film or layer may be used instead of an adhesive. The functionalized bonding film may be provided in one or more strip sections corresponding to the shape and sides of the first component lips 450 , 455 . The functionalized bonding film includes first and second sides. The film may be configured to bond with the material of the first component on the first side and the material of the second component on the second side. The bonding film is capable of bonding the first and second components together when subjected to the required temperature and pressure conditions for a defined period of time.

After adhesive is applied to the first component lips 450 and 455 , the second component 200 can be placed over or slid over the first component lips 450 and 455 . The second component 200 may slide over the first component lips 450 , 455 until the outer edge of the second component 200 contacts the remainder of the first component 300 . 5 , the first component lip includes a concave offset 459 with which the second component 200 fills when the club head is assembled. The third step may further include allowing the adhesive to dry to bond the first component 200 to the second component 300 .

The fourth step may include polishing, cleaning, coating and/or painting the club head. In some embodiments, the fourth step may further include placing a separable weight within the weight recess 540 and securing the weight using a fastener.

III) T-shaped design features

As discussed above, the embodiment of the hollow golf club head 100 described herein may include two major components. The metallic first component 300 includes a striking portion and a sole extension 500 defining a “T” shape. A second non-metallic component 200 is wrapped around the first component to include the rear portion of the crown 110 and also include a portion of the sole 120 . The denser “T”-shaped sole of the first component 300 coupled to a less dense crown surrounding the second component 200 reduces the crown mass and shifts the center of gravity (CG) of the golf club head. characteristics can be optimized. The weight saved from the second component 200 can be redistributed to other locations of the golf club head 100 to further optimize the CG, increase the MOI, and manipulate the shape of the shot trajectory.

The CG of the golf club head 100 may travel down to the rear side of the golf club head 100 including the first component 300 and the second component 200 , where the second component 200 has a constant density. and a second material having a second density less than the first material density as compared to an alternative golf club head comprising only the first material having

Yes

A comparison club head and an exemplary club head of the present application are compared in Table 1. The comparative club is all metal but has a similar total mass and total volume to the exemplary club head. An exemplary club head is an embodiment of a golf club head of the present application.

CGy CGz Ixx yyy mass volume comparative golf club head 0.895 1.913 584.45 834.3 205.7g 445cc Exemplary Golf Club Head 0.887 1.986 652.71 875.94 205.8g 445cc Exemplary Golf Club Heads with Recessed Weights 0.89 2.013 678.31 901.78 205.2g 445cc

The comparative club head and the exemplary club head have the same volume of about 445 cm ³ . The comparison club, constructed entirely of metallic material, has a CGy, CG height above ground plane 105 of 0.895 inches. An exemplary golf club head has a CGy of 0.887 inches. CGy preferably has a lower value. The CGy of the exemplary golf club head is 0.008 inches lower than the comparative club. As noted above, CGz is the distance at which the CG is located from the striking face center 175 toward the rear end of the golf club head in a direction perpendicular to the loft plane of 198 . is measured as A larger CGz positioned further back of the golf club is advantageous for ball flight control. The comparison club has a CGz of 1.913 inches. An exemplary golf club head has a CGz of 1.986 inches. The CGz of the exemplary golf club head is 0.073 inches further back than the CGz of the comparative club.

The position of the CG depends on the launch characteristics of the ball (e.g., ball trajectory, ball spin, and ball velocity), moment of inertia (MOI) and performance characteristics (e.g., squaring or swing speed of the striking surface during impact). help to decide The high MOI prevents rotation of the golf club head during the swing and helps squaring the striking surface during impact with the ball. Hitting the ball with a squared striking surface helps to ensure a straight ball path and optimal height/trajectory compared to a slice shot or hook shot of the ball if the striking surface is not squared. Also, the lower CG improves the speed and spin of the ball, which adds distance and prevents the ball from rolling backwards upon landing.

The MOI of the exemplary golf club head is greater than the MOI of the comparative golf club. MOI values Ixx and Iyy are MOI values for X-axis 190 and Y-axis 192, respectively. A higher MOI is desirable because it helps prevent rotation of the golf club head during swing and helps squaring the striking surface during impact with the ball. The comparison club has Ixx and Iyy values of 584.45 and 834.30, respectively. The Ixx and Iyy values of the exemplary golf club head are 652.71 and 875.94, respectively. The exemplary golf club head provides a significant 11.7% improvement in Ixx and a 5.0% improvement in Iyy over the comparative club.

Ball flight of a golf ball struck by the exemplary golf club head results in improvements in CGy and CGz values, which directly lead to improvements in Ixx and Iyy values. The improved CG value lowers the ball spin on impact and leads to a longer distance for the ball to fly. The improved MOI values directly lead to more tolerance for eccentric strikes.

In an alternative embodiment, embedded high-density weights were added to the exemplary golf club head. An exemplary golf club head with weight has a CGy of 0.890 inches and a CGz of 2.013 inches. The exemplary golf club head having a weight CGy is 0.005 inches smaller than the CGy of the comparative golf club head, while the CGz of the exemplary golf club head having the weight is 0.100 inches greater than the CGz of the comparative golf club head. An exemplary golf club head with weight has an Ixx value of 678.31 and an Iyy value of 901.78. All of these MOI values are 16% and 8.1% greater than the Ixx and Iyy of the comparative golf club heads, respectively.

Substitution of one or more claimed elements constitutes a reconstruction rather than a modification. In addition, advantages, other advantages, and solutions to problems have been described with respect to specific embodiments. However, an advantage, advantage, solution to a problem, and any element or element that evokes or makes any advantage, advantage, or solution evoking or more prominent shall not be construed as being an important, essential or basic feature or element of any or all claims. do.

Because the rules for golf may change from time to time (eg, the American Golf Association (USGA), a golf standards body such as the Royal and Ancient Golf Club of St. Andrews (R&A)) and/or new rules may be adopted by the Board of Directors, or old rules may be removed or amended), golf equipment related to the apparatus, methods, and articles of manufacture described herein are the rules of golf at any particular time. may or may not conform to Accordingly, golf equipment related to the apparatus, methods, and articles of manufacture described herein may be advertised, offered for sale, and/or sold as golf clubs that meet or do not conform to the rules of golf. The devices, methods, and articles of manufacture described herein are not limited in this regard.

Industry customs, rules and naming conventions established by golf organizations such as the American Golf Association (USGA) or R&A may reinforce these glossaries without departing from the scope of this application.

Although the above examples may be described in the context of hollow body golf clubs, the apparatus, methods, and articles of manufacture described herein may be used for other types of golf clubs, such as iron-type golf clubs, wedge-type golf clubs, or putter-type golf clubs. of golf clubs. Alternatively, the manufacturing apparatus, manufacturing method, and article of manufacture described herein may be applied to other types of sports equipment such as hockey sticks, tennis rackets, fishing rods, ski poles, and the like.

Moreover, the embodiments and limitations disclosed herein are not intended to limit the embodiments and/or limitations to which (1) are not explicitly claimed in the claims, but (2) express elements and/or limitations within the claims under the principle of equivalents. If equal or potentially equal, no donations are made to the public under the principle of dedication.

Various features and advantages of the present disclosure are described in the following paragraphs.

Item 1. A golf club head, comprising: a body comprising a striking face, a rear end, a toe end, a heel end, a crown, a sole and a trailing edge, the body comprising the striking face, a striking face return portion and a first component comprising a rear extension, the rear extension further comprising a weight channel, and a second component comprising at least a portion of the rear end, wherein the weight channel comprises the weight channel of the golf club head. centrally located at the rear end, the striking surface including a striking surface center and extending in a direction from the heel end of the golf club head to the toe end through the striking surface center and wherein the club head is in an address position X-axis parallel to the ground plane when at; a Y-axis extending in the direction of the solo from the crown of the golf club head through the center of the striking face and perpendicular to the X-axis; a Z-axis extending through the center of the striking surface in a direction from the striking surface to a rear end of the golf club head and perpendicular to the X-axis and the Y-axis; a loft plane substantially parallel to the striking surface and in contact with the center of the striking surface to form a loft angle with the ground plane; an XY plane extending through the X-axis and the Y-axis; and a YZ plane extending through the Y-axis and the Z-axis, wherein the first component comprises a first material having a first density, and wherein the second component comprises a second material having a second density. wherein the first density is greater than the second density, the striking surface return portion of the first component extending rearwardly from the striking surface and comprising a first component crown portion and a first component sole portion; a rear extension portion extending from the first component sole portion of the striking surface return portion toward the rear end portion, the second component configured to be coupled to the first component to form an enclosed hollow interior of the golf club head; the first component sole portion of the striking face return further comprises a toe extension and a heel extension on a toe side of the rear extension and a heel side of the rear extension, respectively, the toe extension including a toe extension rear wall; wherein the heel extension includes a wall behind the heel extension, and wherein the first component mass is 85% to 96% of the mass of the golf club head.

Item 2. The golf club head of item 1, wherein the weight channel is exposed at the sole and the rear end of the body.

Item 3. The golf club head of item 2, wherein the weight channel is configured to receive a movable weight in one of three locations.

Item 4. The golf club head of item 1, wherein the rear extension includes a toe side wall and a heel side wall connecting the weight channel to a striking face sole return portion.

Item 5. The golf of item 4, wherein the rear extension toe side wall and the toe extension rear wall define a toe wall angle, and the rear extension heel side wall and the heel extension form a heel side wall angle. club head.

Item 6. The golf club head of item 5, wherein the toe side wall angle and the heel side wall angle are complementary such that the sum of the angles is 180 degrees.

Item 7. Item 7. Item 4, wherein the rear extension toe side wall and the toe extension rear wall are connected at a toe junction, the rear extension heel side wall and the heel extension are connected at a heel side junction, and a plane of intersection is a golf club head coincident with the toe-side intersection and the heel-side intersection and extending parallel to the XY plane.

Item 8. The weight channel of item 2, wherein the weight channel further comprises a mounting wall having three threaded holes, the three threaded holes comprising a toe-side threaded hole, a central threaded hole, and a heel-side threaded hole; and the central screw hole is located at the midpoint of the length of the mounting wall.

Item 9. The rear extension of item 7, wherein the rear extension comprises a rear extension axis extending between a front midpoint of the rear extension and a center of the mounting wall center hole, wherein the front midpoint of the rear extension comprises the toe side intersection and the A golf club head, located midway between the hillside intersections.

Item 10. The golf club head of item 9, wherein the rear extension axis is perpendicular to the plane of intersection.

Item 11. The golf club head of item 9, wherein the rear extension axis is not perpendicular to the plane of intersection.

Item 12. The heel side of item 9, wherein the toe axis angle comprises an angle between the plane of intersection and the rear extension axis, measured when viewing the sole of the golf club head from the toe side of the rear extension axis. axial angle includes an angle between the plane of intersection and the axis of the rear extension, measured when looking at the sole of the golf club head from the heel side of the axis of the rear extension, the toe axis angle and the heel axis angle being A golf club head with complementary angles summing up to 180 degrees.

Item 13. Item 13. The rear extension of item 12, wherein the rear extension is attached to the striking face return sole portion closer to the toe end of the golf club head than the heel end, the toe axial angle being greater than 90 degrees, and wherein the toe side axial angle is greater than 90 degrees; A golf club head, wherein the heel-side axial angle is less than 90 degrees.

Item 14. The rear extension of item 12, wherein the rear extension is attached to the striking face return sole portion closer to the heel end of the golf club head than the toe end, wherein the heel side axial angle is greater than 90 degrees; A golf club head, wherein the right axis angle is less than 90 degrees.

Item 15. The rear extension of item 1, wherein the rear extension comprises a rear extension width measured in a heel-toe direction rearward around a rear perimeter of the striking face return sole portion, the rear extension width being the entire width of the sole. a golf club head ranging from 25% to 85% of its width.

Item 16. The golf club head of item 15, wherein the width of the rear extension adjacent the weight channel ranges between 1 inch and 2.5 inches.

Item 17. The golf club head of item 15, wherein the rear extension width between the toe-side intersection and the heel-side intersection ranges between 1 inch and 5 inches.

Item 18. The golf club head of item 3, wherein the movable weight is secured by a threaded fastener.

Item 19. The golf club head of item 2, wherein the weight channel further comprises a sole wall, the mounting wall oriented approximately perpendicular to the sole.

Item 20. A golf club head, comprising: a body comprising a striking surface, a rear end, a toe end, a heel end, a crown, a sole and a trailing edge, the body comprising the striking surface, a striking surface return portion and a first component comprising a rear extension, said rear extension further comprising a weight channel, and a second component comprising at least a portion of said rear end, said striking surface comprising a striking surface center; an X-axis extending in a direction from the heel end to the toe end of the golf club head through the striking surface center and parallel to the ground plane when the club head is in an address position; a Y-axis extending in the direction of the solo from the crown of the golf club head through the center of the striking face and perpendicular to the X-axis; a Z-axis extending through the center of the striking surface in a direction from the striking surface to a rear end of the golf club head and perpendicular to the X-axis and the Y-axis; a loft plane substantially parallel to the striking surface and in contact with the center of the striking surface to form a loft angle with the ground plane; an XY plane extending through the X-axis and the Y-axis; and a YZ plane extending through the Y-axis and the Z-axis, wherein the first component comprises a first material having a first density, and wherein the second component comprises a second material having a second density. wherein the first density is greater than the second density, the striking surface return portion of the first component extending rearwardly from the striking surface and comprising a first component crown portion and a first component sole portion; a rear extension portion extending from the first component sole portion of the striking surface return portion toward the rear end portion, the second component configured to be coupled to the first component to form an enclosed hollow interior of the golf club head; the first component sole portion of the striking face return further comprises a toe extension and a heel extension on a toe side of the rear extension and a heel side of the rear extension, respectively, the toe extension including a toe extension rear wall; wherein the heel extension includes a heel extension rear wall, the rear extension has a width and a length, the rear extension includes a toe wall and a heel wall connecting the weight channel to the striking face sole return portion; the rear extension toe side wall and the toe extension rear wall define a toe wall angle, the rear extension heel side wall and the heel extension forming a heel side wall angle, the rear extension toe side wall and the toe extension wall The extension rear wall is connected at the toe intersection, the rear extension heel wall and the heel extension are connected at the heel intersection, the intersection plane coincides with the toe side intersection and the heel intersection, and parallel to the XY plane Extended, golf club head.

Claims (20)

As a golf club head:
main body
wherein the body comprises a striking face, a rear end, a toe end, a heel end, a crown, a sole and a trailing edge;
the body is
said striking face, a striking face return and a rear extension, said rear extension further comprising a weight channel, said weight channel centered on said rear end of said golf club head; a first component and
a second component comprising at least a portion of the rear end
Further comprising, the striking surface includes a center of the striking surface, and also
an X-axis extending through the center of the striking face in a direction from the heel end to the toe end of the golf club head and parallel to the ground plane when the club head is in an address position;
a Y-axis extending in the direction of the solo from the crown of the golf club head through the center of the striking face and perpendicular to the X-axis;
a Z-axis extending through the center of the striking surface in a direction from the striking surface to a rear end of the golf club head and perpendicular to the X-axis and the Y-axis;
a loft plane substantially parallel to the striking surface and in contact with the center of the striking surface to form a loft angle with the ground plane;
an XY plane extending through the X-axis and the Y-axis; and
A YZ plane extending through the Y-axis and the Z-axis
including,
the first component comprises a first material having a first density;
the second component comprises a second material having a second density;
The first density is higher than the second density,
the striking surface return portion of the first component extends rearwardly from the striking surface and includes a first component crown portion and a first component sole portion;
the rear extension portion extends from the first component sole portion of the striking surface return portion toward the rear end portion;
the second component is configured to be coupled to the first component to form an enclosed hollow interior of the golf club head;
the first component sole portion of the striking surface return portion further comprises a toe extension portion and a heel extension portion on a toe side of the rear extension portion and a heel side of the rear extension portion, respectively;
wherein the toe extension comprises a toe extension rear wall and the heel extension comprises a heel extension rear wall;
wherein the first component mass is between 85% and 96% of the mass of the golf club head. The golf club head of claim 1 , wherein the weight channel is exposed at the sole and the rear end of the body. 3. The golf club head of claim 2, wherein the weight channel is configured to receive a movable weight in one of three locations. The golf club head of claim 1 , wherein the rear extension includes a toe side wall and a heel side wall connecting the weight channel to a striking face sole return portion. 5. The method of claim 4, wherein the rear extension toe side wall and the toe extension rear wall define a toe side wall angle;
and the rear extension heel side wall and the heel extension portion define a heel side wall angle. 6. The golf club head of claim 5, wherein the toe side wall angle and the heel side wall angle are complementary such that the sum of the angles is 180 degrees. 5. The method of claim 4, wherein the rear extension toe side wall and the toe extension rear wall are connected at a toe side junction, the rear extension heel side wall and the heel extension side are connected at a heel side junction;
and an intersection plane coincides with the toe side intersection and the heel side intersection and extends parallel to the XY plane. 3. The method of claim 2, wherein the weight channel further comprises a mounting wall having three screw holes;
The three screw holes include a toe side screw hole, a center screw hole and a heel-side screw hole,
and the central screw hole is located at a central point of the length of the mounting wall. 8. The rear extension of claim 7, wherein the rear extension includes a rear extension axis extending between a front midpoint of the rear extension and a center of the mounting wall center hole;
and the front midpoint of the rear extension is located midway between the toe side intersection and the heel side intersection. 10. The golf club head of claim 9, wherein the rear extension axis is perpendicular to the plane of intersection. 10. The golf club head of claim 9, wherein the rear extension axis is not perpendicular to the plane of intersection. 10. The method of claim 9, wherein the toe axis angle comprises the angle between the plane of intersection and the rear extension axis, measured when viewing the sole of the golf club head from the toe side of the rear extension axis;
the heel side axis angle comprises the angle between the plane of intersection and the rear extension axis, measured when viewing the sole of the golf club head from the heel side of the rear extension axis;
wherein the toe side axis angle and the heel side axis angle are complementary angles whose sum is 180 degrees. 13. The method of claim 12, wherein the rear extension is attached to the striking surface return sole portion closer to the toe end of the golf club head than to the heel end;
wherein the toe axial angle is greater than 90 degrees and the heel axial angle is less than 90 degrees. 13. The method of claim 12, wherein the rear extension is attached to the striking surface return sole portion closer to the heel end of the golf club head than the toe end;
wherein the heel axial angle is greater than 90 degrees and the toe axial angle is less than 90 degrees. The rear extension of claim 1 , wherein the rear extension comprises a rear extension width measured in a heel-toe direction rearward around a rear perimeter of the striking face return sole portion;
and the rear extension width ranges from 25% to 85% of the total width of the sole. 16. The golf club head of claim 15, wherein the width of the rear extension adjacent the weight channel ranges between 1 inch and 2.5 inches. The golf club head of claim 15 , wherein the width of the rear extension between the toe-side intersection and the heel-side intersection ranges between 1 inch and 5 inches. 4. The golf club head of claim 3, wherein the movable weight is secured by a threaded fastener. 3. The method of claim 2, wherein the weight channel further comprises a sole wall;
and the mounting wall is oriented approximately perpendicular to the sole. As a golf club head:
main body
wherein the body comprises a striking face, a rear end, a toe end, a heel end, a crown, a sole and a trailing edge, the body comprising:
a first component comprising the striking face, the striking face return, and a rear extension, the rear extension further comprising a weight channel; and
a second component comprising at least a portion of the rear end
Further comprising, the striking surface includes a center of the striking surface, and also
an X-axis extending through the center of the striking face in a direction from the heel end to the toe end of the golf club head and parallel to the ground plane when the club head is in an address position;
a Y-axis extending in the direction of the solo from the crown of the golf club head through the center of the striking face and perpendicular to the X-axis;
a Z-axis extending through the center of the striking surface in a direction from the striking surface to a rear end of the golf club head and perpendicular to the X-axis and the Y-axis;
a loft plane substantially parallel to the striking surface and in contact with the center of the striking surface to form a loft angle with the ground plane;
an XY plane extending through the X-axis and the Y-axis; and
A YZ plane extending through the Y-axis and the Z-axis
including,
the first component comprises a first material having a first density;
the second component comprises a second material having a second density;
The first density is higher than the second density,
the striking surface return portion of the first component extends rearwardly from the striking surface and includes a first component crown portion and a first component sole portion;
the rear extension portion extends from the first component sole portion of the striking surface return portion toward the rear end portion;
the second component is configured to be coupled to the first component to form an enclosed hollow interior of the golf club head;
the first component sole portion of the striking surface return portion further comprises a toe extension portion and a heel extension portion on a toe side of the rear extension portion and a heel side of the rear extension portion, respectively;
wherein the toe extension comprises a toe extension rear wall and the heel extension comprises a heel extension rear wall;
the rear extension has a width and a length;
The rear extension includes a toe side wall and a heel side wall connecting the weight channel to the striking face sole return portion;
wherein the rear extension toe side wall and the toe extension rear wall define a toe side wall angle;
the rear extension heel side wall and the heel extension portion define a heel side wall angle;
the rear extension toe side wall and the toe extension rear wall are connected at a toe side intersection;
The rear extension heel side wall and the heel extension portion are connected at an intersection point on the heel side,
and an intersection plane coincides with the toe-side intersection and the heel-side intersection and extends parallel to the XY plane.

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