Patent Grant
10799777
The invention relates generally to ball striking devices, such as golf clubs and heads. Certain aspects of this invention relate to golf clubs and golf club heads having a body member connected to a face member, with the body member having strategic weighting.
Golf is enjoyed by a wide variety of players—players of different genders, and players of dramatically different ages and skill levels. Golf is somewhat unique in the sporting world in that such diverse collections of players can play together in golf outings or events, even in direct competition with one another (e.g., using handicapped scoring, different tee boxes, etc.), and still enjoy the golf outing or competition. These factors, together with increased golf programming on television (e.g., golf tournaments, golf news, golf history, and/or other golf programming) and the rise of well known golf superstars, at least in part, have increased golfs popularity in recent years, both in the United States and across the world.
Golfers at all skill levels seek to improve their performance, lower their golf scores, and reach that next performance “level.” Manufacturers of all types of golf equipment have responded to these demands, and recent years have seen dramatic changes and improvements in golf equipment. For example, a wide range of different golf ball models now are available, with some balls designed to fly farther and straighter, provide higher or flatter trajectory, provide more spin, control, and feel (particularly around the greens), etc.
Being the sole instrument that sets a golf ball in motion during play, the golf club also has been the subject of much technological research and advancement in recent years. For example, the market has seen improvements in golf club heads, shafts, and grips in recent years. Additionally, other technological advancements have been made in an effort to better match the various elements of the golf club and characteristics of a golf ball to a particular user's swing features or characteristics (e.g., club fitting technology, ball launch angle measurement technology, etc.).
Despite the various technological improvements, golf remains a difficult game to play at a high level. For a golf ball to reliably fly straight and in the desired direction, a golf club should meet the golf ball square (or substantially square) to the desired target path. Moreover, the golf club should meet the golf ball at or close to a desired location on the club head face (i.e., on or near a “desired” or “optimal” ball contact location) to reliably fly straight, in the desired direction, and for a desired distance. Off-center hits that deviate from squared contact and/or are located away from the club's desired ball contact location may tend to “twist” the club face when it contacts the ball, thereby sending the ball in the wrong direction, often imparting undesired hook or slice spin, and/or robbing the shot of distance. Accordingly, club head features that can help a user keep the club face square with the ball, such as by reducing twisting, would tend to help the ball fly straighter and truer, in the desired direction, and often with improved and/or more reliable distance.
Various golf club heads have been designed to improve a golfer's accuracy by assisting the golfer in squaring the club head face at impact with a golf ball. When the club face is not square at the point of engagement, the golf ball may fly in an unintended direction, may follow a route that curves left or right, ball flights that are often referred to as “pulls,” “pushes,” “draws,” “fades,” “hooks,” or “slices,” and/or may exhibit more boring or climbing trajectories. The distance and direction of ball flight can also be significantly affected by the spin imparted to the ball by the impact with the club head. Additionally, the spin of the ball can change the behavior of the ball as it rolls and bounces after impact with the ground. Various speeds and directions of spin on the ball can be a product of many factors, including the point of impact, the direction of the club head upon impact, the degree of twisting of the club head upon impact, and the location of the center of gravity of the club head.
The energy and velocity transferred to the ball by a golf club also may be related, at least in part, to the flexibility of the club face at the point of contact, and can be expressed using a measurement called “coefficient of restitution” (or “COR”). The maximum COR for golf club heads is currently limited by the USGA at 0.83. Generally, a club head will have an area of highest COR response relative to other areas of the face, which imparts the greatest energy and velocity to the ball, and this area is typically positioned at or near the geometric center of the face. In one example, the area of highest response may have a COR that is equal to the prevailing USGA limit which is currently 0.83 and may change over time. However, because golf clubs are typically designed to contact the ball at or around the center of the face, off-center hits may result in less energy being transferred to the ball, decreasing the distance of the shot.
The weighting and weight distribution of a golf club head may also influence the energy and velocity transferred to the ball by the impact, as well as the moment of inertia and the center of gravity of the club head. The moment of inertia of the head can be increased, for example, by distributing a greater amount of weight around the perimeter of the head. This, in turn, can reduce the amount of twisting of the club head that occurs on off-center hits, and increase the distance and accuracy of shots on off-center hits. Likewise, the location of the center of gravity of the head can be influenced by the weight distribution of the head. Generally, the desired contact area of the face is aligned with the center of gravity of the head. However, it may be desirable to shift the location of the center of gravity of the head, such as to adjust for common off-center hitting patterns by a golfer, or to produce a certain shot characteristic (e.g., to induce a hook, slice, draw, fade, etc.). Additionally, different clubs having different loft angles can benefit from different weighting, such as a set of iron-type golf clubs having different centers of gravity. For example, a center of gravity that is lower and/or farther backward can produce higher loft and lower spin on the shot, while a center of gravity that is higher and/or farther forward may produce lower loft, greater distance, and higher spin on the shot and/or greater control, each of which may be desirable in certain clubs or for certain golfers. Accordingly, club head features that can permit the weighting and weight distribution of the head to be adjusted or customized may provide improved performance in several ways.
The present device and method are provided to address the problems discussed above and other problems, and to provide advantages and aspects not provided by prior ball striking devices of this type. A full discussion of the features and advantages of the present invention is deferred to the following detailed description, which proceeds with reference to the accompanying drawings.
The following presents a general summary of aspects of the invention in order to provide a basic understanding of the invention. This summary is not an extensive overview of the invention. It is not intended to identify key or critical elements of the invention or to delineate the scope of the invention. The following summary merely presents some concepts of the invention in a general form as a prelude to the more detailed description provided below.
Aspects of the invention relate to ball striking devices, such as golf clubs, with a head that includes a face having a ball striking surface configured for striking a ball and a body connected to the face and extending rearward from the face. A face member forms the face, and a body member is connected to the face member and extends rearward from the face member to form at least a portion of the body. The body member and/or the face member is formed at least partially of a polymer material, and has a doped portion containing a doping material dispersed within the polymer material. The doping material may have a different density than the polymer material, such that the doped portion has a different density than the portions of the head not containing the doping material. The face member may be formed primarily of a metallic material in one embodiment. Additionally, the head may be completely or partially coated with a particulate metallic nano-coating material.
According to one aspect, the polymer material of the body member includes at least one of the following materials: acrylonitrile butadiene styrene, polyamide alloys, high density polyethylene (HDPE), styrene ethylene butylene styrene block copolymer, thermoplastic polyurethane, other polyurethanes, rubber materials, silicones, and other polymers and copolymers, and combinations thereof. The doping material includes at least one of the following particulate materials: tungsten, stainless steel, brass, copper, lead, etc., as well as non-metals such as various oxides, sulfates, etc. and combinations thereof, or any other material or combination of such materials having one or more desired properties,
According to another aspect, the body member further may comprise a fiber reinforcing material engaged with the polymer material and reinforcing the polymer material.
According to a further aspect, the face member can be connected to the body member in many different configurations. In one embodiment, the face member and the body member may have complementary mating structures connecting the face member to the body member. For example, one of the face member and the body member may have a projection and the other may have a receiver that receives the projection to connect the face member to the body member. The face member and the body member may have a dovetail mating structure, with appropriate projection(s) and recess(es). The projection may be a ridge extending around at least a portion of the periphery of the face member, and the recess may be a complementarily-shaped channel extending around at least a portion of the periphery of the body member. A bonding material (e.g., adhesives, cements, etc.) may additionally or alternately be used.
According to yet another aspect, the face member and the body member are connected by forming the body member in connection to the face member in a co-molding process.
According to a still further aspect, the body member has a plurality of doped portions, each containing the doping material dispersed within the polymer material, and the doped portions are positioned in different locations.
Additional aspects of the invention relate to an iron-type golf club head that includes a face member forming an iron-type face defined by a plurality of peripheral edges and having a ball striking surface configured for striking a ball, and a body member connected to the rear surface of the face member and extending rearward from the face member, with the body member forming at least a portion of an iron-type body extending rearwardly from the peripheral edges of the face. The face member is formed primarily of a metallic material, and the body member is formed at least partially of a polymer material. The body member has a doped portion containing a doping material dispersed within the polymer material. The doping material has a different density than the polymer material, such that the doped portion has a different density than the portions of the body member not containing the doping material. Any aspects described above also may be incorporated into this club head structure.
According to another aspect, the face member is joined to the body member around at least a portion of a periphery of the face member.
Further aspects of the invention relate to a set of iron-type golf clubs that includes six iron-type golf clubs, each having an iron-type golf club head that includes a face defined by a plurality of peripheral edges, with the face having a ball striking surface configured for striking a ball and an inner surface opposite the ball striking surface, and a body connected to the face and extending rearward from the peripheral edges of the face. The body is formed at least partially of a polymeric material having a doped portion containing a doping material dispersed within the polymer material. The doping material has a different density than the polymer material, such that the doped portion has a different density than a portion of the body not containing the doping material. The six golf clubs have different loft angles that increase in a sequence, such that the loft angle of each of the golf clubs is about 5° greater than a previous golf club in the sequence. Such a set of clubs may also include one or more clubs of a different type, such as one or more wood-type clubs.
According to one aspect, the six golf clubs include a first club having a loft angle of about 20°, a second club having a loft angle of about 25°, a third club having a loft angle of about 30°, a fourth club having a loft angle of about 35°, a fifth club having a loft angle of about 40°, and a sixth club having a loft angle of about 45°.
According to another aspect, the set further includes a seventh club, such as a pitching wedge having a loft angle of about 50°, a gap wedge having a loft of about 55°, a lob wedge having a loft of about 60° or 65°, or another wedge or longer iron club.
According to a further aspect, the set of golf clubs may have differently or progressively weighted heads. For example, at least one of the six golf club heads has the doped portion located in a different location relative to the doped portion of at least one other of the six golf club heads. As another example, each of the six golf club heads has the doped portion located in a different location relative to the doped portions of each of the others of the six golf club heads. A set of differently-weighted clubs may be progressively weighted, such as by progressively moving the center of gravity of the club head top-to-bottom and/or heel-to-toe as the clubs become progressively longer or shorter.
Still further aspects of the invention relate to methods that may be used in connection with a provided face member formed primarily of a metallic material. The face member forms a golf club face defined by a plurality of peripheral edges and having a ball striking surface configured for striking a ball and a rear surface located rearwardly from the ball striking surface. The face member is positioned in communication with a tool, such that at least a portion of the rear surface of the face member is in communication with the tool. Then, a polymer material is introduced into contact with the tool such that the polymer material contacts at least a portion of the tool and contacts the rear surface of the face member. The polymer material forms a body member connected to the rear surface of the face member when the polymer material hardens or solidifies. The face member and the body member combine to form a golf club head comprising the face and a body extending rearwardly from the face. Such methods may be considered co-molding methods.
According to one aspect, the tool is a mold having a mold cavity. The polymer material is introduced into the mold cavity such that the polymer material fills at least a portion of the mold cavity and contacts the rear surface of the face member. The polymer material may be introduced into the mold cavity by injection of the polymer material in flowable form. In one example, the polymer material forms around an interior surface of the mold cavity and is spaced from at least a portion of the rear surface of the face member, such that the face member and the body member combine to define an interior cavity within the club head.
According to another aspect, a doping material is positioned proximate the tool prior to introducing the polymer material into contact with the tool, such that the doping material becomes embedded within the polymer material when the polymer material is introduced into contact with the tool. The doping material has a different density than the polymer material, such that the doped portion has a different density than the portions of the body member not containing the doping material.
According to a further aspect, the face member has a mating structure and the polymer material forms the body member with complementary mating structure. The mating structure may include a projection on the face member, such that the polymer material forms around the projection to form a receiver that receives the projection to connect the face member to the body member. In one example, the face member has a dovetail mating structure and the body member has a complementary dovetail mating structure.
According to yet another aspect, a fiber reinforcing material is positioned proximate the tool prior to introducing the polymer material into contact with the tool, such that the fiber reinforcing material becomes embedded within the polymer material when the polymer material is introduced into contact with the tool.
According to a still further aspect, the polymer material contains a fiber reinforcing material that is introduced into contact with the tool along with the polymer material, such that the fiber reinforcing material is embedded within the polymer material after the polymer material forms the body member. In one example, the polymer material and the fiber reinforcing material may be formed together as a prepreg. In this configuration, the polymer material and the fiber reinforcing material can be introduced into contact with the tool by placing the prepreg into contact with the tool. In another example, the polymer material may be in flowable form and the fiber reinforcing material may be particles dispersed throughout the flowable material. In this configuration, the polymer material and the fiber reinforcing material can be introduced into contact with the tool by injecting the polymer material into contact with the tool along with the dispersed fiber reinforcing material.
Other aspects of the invention relate to golf clubs that include a golf club head as described above and a shaft connected to the head, or a set of golf clubs including at least one golf club having a head as described above.
Other features and advantages of the invention will be apparent from the following description taken in conjunction with the attached drawings.
To allow for a more full understanding of the present invention, it will now be described by way of example, with reference to the accompanying drawings in which:
In the following description of various example structures according to the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various example devices, systems, and environments in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, example devices, systems, and environments may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Also, while the terms “top,” “bottom,” “front,” “back,” “side,” “rear,” and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein as a matter of convenience, e.g., based on the example orientations shown in the figures or the orientation during typical use. Additionally, the term “plurality,” as used herein, indicates any number greater than one, either disjunctively or conjunctively, as necessary, up to an infinite number. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of this invention. Also, the reader is advised that the attached drawings are not necessarily drawn to scale.
The following terms are used in this specification, and unless otherwise noted or clear from the context, these terms have the meanings provided below.
“Ball striking device” means any device constructed and designed to strike a ball or other similar objects (such as a hockey puck). In addition to generically encompassing “ball striking heads,” which are described in more detail below, examples of “ball striking devices” include, but are not limited to: golf clubs, putters, croquet mallets, polo mallets, baseball or softball bats, cricket bats, tennis rackets, badminton rackets, field hockey sticks, ice hockey sticks, and the like.
“Ball striking head” means the portion of a “ball striking device” that includes and is located immediately adjacent (optionally surrounding) the portion of the ball striking device designed to contact the ball (or other object) in use. In some examples, such as many golf clubs and putters, the ball striking head may be a separate and independent entity from any shaft or handle member, and it may be attached to the shaft or handle in some manner.
The terms “shaft” and “handle” are used synonymously and interchangeably in this specification, and they include the portion of a ball striking device (if any) that the user holds during a swing of a ball striking device.
“Integral joining technique” means a technique for joining two or more pieces so that the pieces effectively become a single, integral piece, including, but not limited to, irreversible joining techniques, such as adhesively joining, cementing, and welding (including brazing, soldering, or the like), where separation of the joined pieces cannot be accomplished easily and/or without structural damage to at least one of the pieces.
In general, aspects of this invention relate to ball striking devices, such as golf club heads, golf clubs, putter heads, putters, and the like. Such ball striking devices, according to at least some examples of the invention, may include a ball striking head and a ball striking surface. In the case of a golf club, the ball striking surface is a substantially flat surface on one face of the ball striking head (although, in some structures, the face may include some curvature, e.g., known as “bulge” and/or “roll”). Some more specific aspects of this invention relate to iron-type golf clubs and golf club heads, including long irons, short irons, wedges, etc. Alternately, some aspects of this invention may be practiced with hybrid clubs, chippers, and the like, or wood-type golf clubs and the like.
According to various aspects of this invention, the ball striking device may be formed of one or more of a variety of materials, such as metals (including metal alloys), ceramics, polymers, composites (including fiber-reinforced composites), and wood, and may be formed in one of a variety of configurations, without departing from the scope of the invention. In one illustrative embodiment, some or all components of the head, including the face and at least a portion of the body of the head, are made of metal. It is understood that the head may contain components made of several different materials, including carbon-fiber and other components. Additionally, the components may be formed by various forming methods. For example, metal components (such as titanium, aluminum, titanium alloys, aluminum alloys, steels (including stainless steels), and the like) may be formed by forging, molding, casting, stamping, machining, and/or other known techniques. In another example, composite components, such as carbon fiber-polymer composites, can be manufactured by a variety of composite processing techniques, such as prepreg processing, powder-based techniques, mold infiltration, and/or other known techniques.
The various figures in this application illustrate examples of ball striking devices according to this invention. When the same reference number appears in more than one drawing, that reference number is used consistently in this specification and the drawings refer to the same or similar parts throughout.
At least some examples of ball striking devices according to this invention relate to golf club head structures, including heads for wood-type golf clubs, such as drivers, as well as long iron clubs (e.g., driving irons, zero irons through five irons), short iron clubs (e.g., six irons through pitching wedges, as well as sand wedges, lob wedges, gap wedges, and/or other wedges), hybrid clubs, and putters. Such devices may include a one-piece construction or a multiple-piece construction. Example structures of ball striking devices according to this invention will be described in detail below in conjunction with
As shown in
The face 112 is located at the front 124 of the head 102, and has an outer surface 110, as well as an inner surface 111 located opposite the outer surface 110. The face 112 is defined by a plurality of peripheral edges, including a top edge 113, a bottom edge 115, a heel edge 117, and a toe edge 119. The face 112 also has a plurality of face grooves 121 on the ball striking surface 110. For reference purposes, the portion of the face 112 nearest the top face edge 113 and the heel 120 of the head 102 is referred to as the “high-heel area”; the portion of the face 112 nearest the top face edge 113 and toe 122 of the head 102 is referred to as the “high-toe area”; the portion of the face 112 nearest the bottom face edge 115 and heel 120 of the head 102 is referred to as the “low-heel area”; and the portion of the face 112 nearest the bottom face edge 115 and toe 122 of the head 102 is referred to as the “low-toe area”. Conceptually, these areas may be recognized and referred to as quadrants of substantially equal size (and/or quadrants extending from a geometric center of the face 112), though not necessarily with symmetrical dimensions. For at least some types of club heads, the face 112 may include some curvature in the top to bottom and/or heel to toe directions (e.g., bulge and roll characteristics), as is known and is conventional in the art for such clubs. As seen in the illustrative embodiments in
The body 108 and the face 112 of the golf club head 102 may be constructed from a wide variety of different materials, including materials conventionally known and used in the art, such as steel, titanium, aluminum, tungsten, graphite, polymers, or composites, or combinations thereof. Also, if desired, the club head 102 may be made from any number of pieces (e.g., having a separate face mask, etc.) and/or by any construction technique, including, for example, casting, forging, welding, and/or other methods known and used in the art.
The ball striking device 100 may include a shaft 104 connected to or otherwise engaged with the ball striking head 102, as shown in
In one exemplary embodiment, shown in
In general, the head 102 is formed of at least two separate pieces, including a face member 140 and a body member 142 connected to the face member 140. The face member 140 and the body member 142 combine to define the head 102 and features thereof, including the face 112 and the body 108 of the head 102, as described below. It is understood that each of the face member 140 and/or the body member 142 individually may be formed of multiple pieces, and thus, the head 102 may be formed of two or more pieces connected together.
The face member 140 generally includes and defines at least the face 112 of the head 102, including the ball striking surface 110 and the inner surface 111. The face member 140 is also understood to have a rear surface 141, which may include the inner surface 111 of the face 112. In the embodiment shown in
The body member 142 is connected to face member 140 and extends rearwardly from the face member 140 to form at least a portion of the body 108 of the club head 102. In the embodiment shown in
The body member 142 may be made from one or more of a variety of materials, and the body member 142 may be made from a different material than the face member 140. As described above, in some embodiments, the body member 142 and the face member 140 may be completely or partially made from the same material. In one embodiment, the body member 142 and/or the face member 140 is made entirely, primarily, or at least partially from a polymer material. It is understood that a “polymer material” may include blends of different polymers, copolymers, etc. In one embodiment, the body member 142 may also contain non-polymer materials along with the polymer material, such as a reinforced polymer composite material that includes a polymer material and a reinforcing material such as a fiber engaged with the polymer material. Examples of polymer materials that can be used include acrylonitrile butadiene styrene (ABS), polyamide alloys (e.g., polyamide 6, polyamide 6/10, polyamide 6/6), high density polyethylene (HDPE), styrene ethylene butylene styrene block copolymer (SEBS), thermoplastic polyurethane (TPU) or other polyurethane, rubber materials, silicones, and other polymers and copolymers. Examples of reinforcing materials that can be used include carbon/graphite fibers, glass fibers, basalt fibers, boron fibers, liquid crystal polymer fibers (e.g., Vectran) or other polymer-based fibers (e.g. UHMWPE, Kevlar, etc.). The polymer material can be formed using a variety of techniques, such as injection molding or other molding techniques, prepreg processing or other composite processing techniques, or other polymer processing techniques available to those skilled in the art. In one embodiment, the polymer material may be lightweight, and the polymer material may be selected for other properties as well. For example, polymer materials with lower flexibility may be selected for enhanced strength and/or rigidity, or polymer materials with higher flexibility may be selected for sound and/or vibration dampening properties. As another example, polymer materials may be selected for their thermal properties or ease of processing. In another embodiment, the body member 142 may be formed of another material that does not contain any polymer material. Further, like the face member 140, the body member 142 may be formed of several pieces or a single, integral piece, and may be formed from multiple pieces joined together by an integral joining technique.
As illustrated in
In the embodiment shown in
It is understood that the doping material may include more than one different material substance, and that multiple doped portions may be provided throughout the body member 142, and, if desired, these multiple doped portions may contain different doping materials. Additionally, in one embodiment, doped or weighted portions having substantially identical sizes, but with densities that vary ten-fold, such as from 1.2-12.0 g/cc, can be created by using different doping materials and/or different volume fractions of doping materials in the doped portions. In other embodiments, further weights and densities can be achieved. In one embodiment, one or more of the doped portions containing the doping material may have a density of 9.0-10.0 g/cc.
In the heads 102C and 102I of
The face and body members 140, 142 may be formed and connected in a variety of manners. For example, the face and body members 140, 142 may be formed as separate pieces and connected together. In one illustrative embodiment, the face and body members 140, 142 can be formed together in a co-molding process, as shown in
In other embodiments, the material M may be introduced into contact with the tool T in a different manner. For example, the material M may be poured into the mold cavity C, or may be brought into contact with the tool T in a non-flowable form, such as a blank preform, a prepreg, etc. It is understood that as described above, the tool T may contain additional structures for forming the inside of the body member 142, such as an inflatable bladder, a mold core, etc. A different type of tool T may be used in other embodiments. Further, the tool T is illustrated as a two-piece mold that can be separated or opened in order to bring the face member 140 into communication with the cavity C, although in other embodiments, the tool T may have a single-piece configuration or another multi-piece configuration.
The doping material may also be utilized in the process as illustrated in
In another embodiment, as illustrated in
In a further embodiment, at least a portion of the face member 140 and/or the body member 142 may be formed of a polymer material M, as shown in
As mentioned above, the co-molding process may also utilize a reinforcing material to reinforce the polymer material M. In one embodiment, a reinforcing material, such as a fiber, may be positioned in contact with or proximate the tool T prior to introducing the polymer material M into contact with the tool T. When the polymer material M is introduced into contact with the tool T, the reinforcing material becomes embedded within the polymer material. In another embodiment, the polymer material M may contain a reinforcing material that is introduced into contact with the tool T along with the polymer material M, such that the fiber reinforcing material is embedded within the polymer material M after the polymer material M forms the body member. For example, the polymer material M and the reinforcing material may be formed together as a prepreg, and the polymer material and the fiber reinforcing material can be introduced into contact with the tool by placing the prepreg into contact with the tool. As another example, the polymer material M may be in flowable form and may have a particulate reinforcing material dispersed throughout the flowable material M. The polymer material and the fiber reinforcing material are introduced into contact with the tool T by injecting the polymer material M into contact with the tool T along with the dispersed fiber reinforcing material.
The face member 140 may be connected to the body member 142 through one or more of many different connection configurations. The embodiment shown in
In the embodiment of
It is understood that the ridge-projections 252, 352 in
In further embodiments, the face member 240, 340 and the body member 242, 342 may have additional types of mating connecting structure or other connecting structures. For example, the face and body members 240, 340, 242, 342 may have other mechanical connecting structures, such as lap joints, fasteners, tabs or snap fitting arrangements, including other complementary mating-type structures, and/or may include the use of a bonding material, such as adhesive, cement, welding, brazing, soldering, etc. It is understood that a combination of mechanical connecting structure and bonding material may be used in some embodiments, and that a bonding material may be used with the embodiments in
The complementary mating structures described herein can be utilized in connection with a co-molding method as described above and illustrated in
Any of the features described above with respect to the embodiments in
In further embodiments, features and techniques described herein, including the use of doped portions 144 may be utilized or incorporated within other types of golf club heads or other ball-striking devices. For example, these features can be used in a wood-type golf club, such as those shown in U.S. Pat. No. 7,993,216, which is hereby incorporated by reference herein in its entirety and made part hereof.
Several different embodiments have been described above, including the various embodiments of golf clubs 100 and heads 102, 102A-C, 202, 302, 402, 502, 602 and portions thereof described herein. It is understood that any of the features of these various embodiments may be combined and/or interchanged. For example, as described above, various different combinations of face members 140, et seq. with differently configured body members 142, et seq. may be used, including the configurations described herein, variations or combinations of such configurations, or other configurations. Any of the face members 140, et seq. and the body members 142, et seq. described herein can be used in combination, although some such combinations may require modification from the depicted structures. As another example, any of the various doping materials and configurations, connecting structures, materials, and forming methods described herein can be used with any other embodiment described herein, or variations thereof. In further embodiments, at least some of the features described herein can be used in connection with other configurations of iron-type clubs, wood-type clubs, other golf clubs, or other types of ball-striking devices.
Heads 102, et seq. incorporating the features disclosed herein may be used as a ball striking device or a part thereof. For example, a golf club 100 as shown in
A set of golf clubs 100 as described above may contain a series of heads 10A-F (
A set of golf clubs 100 as described above may also be configured with progressive weighting, such as the set of golf clubs shown in
Additionally, as described above, the head 102, et seq., golf club 100, or other ball striking device may be fitted or customized for a person by custom fitting, which may include selecting a specific body member 142, et seq., with desired weighting characteristics and connecting the body member 142, et seq., to a selected face member 140, et seq. Further, in one embodiment, the body member 142, et seq., may be removable from the face member 140, et seq. In this configuration, the head 102, et seq., may be further customizable by removing one body member 142, et seq., and interchanging it with another body member 142, et seq., with a different shape, weighting configuration, or other characteristic. Various other different configurations are possible, and various other club heads may be designed for various performance characteristics.
Further, heads 102, et seq., as shown and described herein may include the doping material and the doped portion(s) 144 in any position or configuration. For example, as described above, lateral portions (e.g. heel 120 and/or toe 122 portions) of the heads 102, et seq., may include doped portions.
The ball striking devices and heads therefor as described herein provide many benefits and advantages over existing products. For example, the use of the doping material in specific locations on a club head can be used to control the weighting of the club head, including the weight, weight distribution, moment of inertia, etc. This permits club head designers to manipulate the weighting and weight distribution (including COG, MOI, etc.) within the framework of a typical club design, which can reduce or eliminate the need to use a radical geometry. As one example, a standard blade-type iron configuration can be manufactured with a number of different weighting configurations without significant changes in geometry. Additionally, weighted body members 142, et seq., as described herein can be used with a set of golf clubs to create progressive weighting or customized weighting among the clubs of the set. Further, the reduction in the number of clubs in a set may permit more expensive techniques and/or materials to be used in production, while maintaining the ability to offer the set at a reasonable price. Still further benefits and advantages may be recognizable by those skilled in the art.
While the invention has been described with respect to specific examples including presently preferred modes of carrying out the invention, those skilled in the art will appreciate that there are numerous variations and permutations of the above described systems and methods. Thus, the spirit and scope of the invention should be construed broadly as set forth in the appended claims.
This is a continuation of U.S. patent application Ser. No. 15/983,001, filed May 17, 2018, now U.S. Pat. No. 10,369,432, which is a continuation of U.S. patent application Ser. No. 15/493,507, now U.S. Pat. No. 9,993,702, filed Apr. 21, 2017, which is a continuation of U.S. patent application Ser. No. 14/621,762, now U.S. Pat. No. 9,630,072, filed Feb. 13, 2015, which is a continuation of U.S. patent application Ser. No. 13/485,329, now U.S. Pat. No. 8,968,114, filed May 31, 2012. This application claims priority to and the benefit of all of the above listed applications, which are incorporated by reference herein in their entirety.
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| Number | Date | Country | |
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| 20200078644 A1 | Mar 2020 | US |
| Number | Date | Country | |
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| Parent | 15983001 | May 2018 | US |
| Child | 16513551 | US | |
| Parent | 15493507 | Apr 2017 | US |
| Child | 15983001 | US | |
| Parent | 14621762 | Feb 2015 | US |
| Child | 15493507 | US | |
| Parent | 13485329 | May 2012 | US |
| Child | 14621762 | US |
