Abstract: A golf club comprising an adjustable fitting member semi-permanently attached rearwardly on a sole is disclosed herein. The fitting member can be rotated to adjust the measured and perceived face angle of the golf club head at address without changing the relative relationship of the club with respect to the shaft, which would alter the lie and loft of the golf club head.

Abstract: A golf putter with an offset and shaft-attachment design is disclosed and claimed. The club includes a head having a strike surface, a sole, and a top line. A tube is coupled to the head, a coupling member is coupled to the distal end of the tube, and a shaft is also coupled to the coupling member. The coupling member connects the tube and the shaft such that they are relatively offset. The longitudinal axes of the tube and the shaft may be substantially parallel. An alignment indicia is provided on the club head. The tube is coupled to the head at an angle such that it blocks the indicia from a user's view at address when the head is aligned properly. If the club head is not properly aligned, the golfer will be able to see the indicia and therefore know to adjust the club head before putting.

Abstract: A golf club head with an improved Moment of Inertia (MOI) is disclosed herein. More specifically, the present invention relates to a golf club head with a releasable hosel mechanism that is leaner and more lightweight, it allows a significant amount of weight to be saved from the hosel portion of the golf club head and used to improve Center of Gravity (CG) location of the golf club head; which contributes to the improvement of the MOI of the golf club head.

Abstract: A ball striking device has a face with a striking surface and a body extending rearwardly from the outer periphery of the face. A channel extends across at least a portion of the sole, and includes a trough defined between front and rear edges and extending in a heel-toe direction. The device further has internal interconnection structure for connection of a shaft to the head. The device may have a hosel connected to the body proximate the heel, with the hosel having the internal interconnection structure adapted for connection of the shaft to the hosel. A bore or access opening may be provided that intersects the channel, to access the interconnecting structure. The device may further include one or more stiffening ribs on the sole.

Abstract: Golf club heads include a golf club head body, a ball striking face, and a shaft engaging member configured to engage a golf club shaft with the golf club head body. Further, the shaft engaging member may be configured to engage the golf club head body and the shaft below a center of gravity of the golf club head.

Abstract: A golf club head (40) with a face component (50), an aft body (70), and an aerodynamic hosel (50) is disclosed herein. The hosel (50) is connected to the club head (40) at a head connection point (55) and to a shaft at a shaft connection point (57), and a YZ plane (85) defined by a y-axis and an x-axis that intersects the center of gravity (80) also intersects the head connection portion (55) of the hosel (50). In one further embodiment, a plane (95) aligned with the hosel (50) is parallel to an XZ plane (90) defined by the horizontal x-axis and the vertical z-axis. In another further alternative embodiment, a plane (95) aligned with the hosel (50) intersects the XZ plane 90.

Abstract: A golf club head having a body, a hosel, and a bolt that connects the hosel to the body such that the hosel can rotate around the bolt is disclosed herein. In one embodiment, a worm gear engages gear teeth located at an interface of the hosel and the body, and turning the worm gear causes the hosel to rotate around the bolt. In another embodiment, a circular wedge is disposed between the hosel and the body, and rotating the circular wedge around the bolt changes the orientation of the hosel with respect to the body.

Abstract: A golf club head comprising an aerodynamic hosel is disclosed herein. In one embodiment, the hosel may have an airfoil cross-section with a high thickness to chord ratio. In a further embodiment, the thickness to chord ratio may increase from a hosel head connection point to a hosel shaft connection point. In another embodiment, a shaft connection point of the hosel is closer to a club face vertical plane than to a head connection point vertical plane, e.g., is swept. In yet another embodiment, the hosel has an endplate proximate a shaft connection point. In yet another embodiment, the exterior surface of the hosel is rough, comprises at least one vertex generator, comprises a fillet, or comprises at least one trip step.

Abstract: A preferable golf club 2 is provided with a head 4, a shaft 6, a sleeve 8, and a screw 10. The head 4 is provided with a head body 14 and an engaging member 16. The head body 14 is formed by joining a plurality of members. The plurality of members includes a face member 112, a crown member 110, a sole member 114, and a hosel member 116. Preferably, the face member 112, the crown member 110, and the sole member 114 are produced by press processing a rolled material. Preferably, a through hole 130 into which a lower end part of the hosel member 116 can be fitted is formed in the sole member 114. In the golf club 2, the head body 14 and the shaft 6 are detachably mounted to each other without destruction of a bonding agent.

Abstract: A releasable connection system for assembling a shaft and a club head, e.g., a golf club shaft and a golf club head. The connection system provides interchangeability between a shaft and a club head and allows the head to be adjusted with respect to the shaft. The mating structures between the shaft and the club head may be indexed for reproducible placement. In an embodiment, the connection system also includes retaining structures that maintain the connection fastener position when the head and shaft are separated.

Abstract: A golf club can include a universal hosel and/or hosel spacer that allows the golf club to be used with a variety of different sized club head shafts. The universal hosel can include multiple steps or ledges, and various inner diameters to accommodate different sized shafts. The spacer can be a self-expanding spacer, and can be pre-coated with epoxy. The spacer can fill in gaps within a hosel, so as to accommodate different sized shafts.

Abstract: A golf club head consisting of a striking face, a soleplate, a crown, and a skirt connecting the face, the soleplate and the crown. A flange is placed at a selected location on the periphery of the skirt. Incorporated into the flange is a hosel, positioned to be displaced from the club head, for receiving the shaft of the golf club. The area of the skirt covered by the flange has a length versus height ratio.

Abstract: A head 2 includes a head body h1 and a neck part n1. The head body h1 and the neck part n1 are joined. The head body h1 has a body side joint surface s1 and a first recessed part opened in the body side joint surface s1. A space v1 is formed by the first recessed part r1. The neck part n1 has a neck side joint surface brought into surface contact with the body side joint surface s1 and a shaft hole 14. An abutted boundary surface Pt passes through a vicinity ad1 of a head height lowest point. When a plane perpendicular to an axis line z of the shaft hole 14 is defined as PL, and an angle between the plane PL and the abutted boundary surface Pt is ? degree, the angle ? is a plus value.

Abstract: A golf club comprising an adjustable fitting member semi-permanently attached rearwardly on a sole is disclosed herein. The fitting member can be rotated to adjust the measured and perceived face angle of the golf club head at address without changing the relative relationship of the club with respect to the shaft, which would alter the lie and loft of the golf club head.

Abstract: A golf putter head with a front portion comprising traditional shape and appearance, with an integral face insert extending through the head to an alignment and weighting portion extending beyond the main body of the putter, adding improved alignment, increased moment of inertia (MOI) and adjustable weighting and adjustable balance and optimizable center of percussion. The putter head comprises a central face insert portion extending through the body and above the traditional weight flange, with mass relieved portions below the top of the alignment piece in order to receive one or more optional weights, and the upper side of the rearwardly extending portion being engraved or marked with various alignment indicia, and the whole through-head insert face portion and rearwardly extending portion being affixed to the base portion of the head at least in part with threaded fasteners.

Abstract: A golf club comprises a shaft, a club head, and a connection assembly that allows the shaft to be easily disconnected from the club head. In particular embodiments, the connection assembly includes a removable hosel sleeve that allows a shaft to be supported a desired predetermined orientation relative to the club head. In this manner, the shaft loft and/or lie angle of the club can be adjusted without resorting to traditional bending of the shaft. In another embodiment, the club head has an adjustable sole that can be adjusted upwardly and downwardly relative to the strike face of the club head, which is effective to adjust the face angle of the club head.

Abstract: A temporary shaft-component connection for assembling a selected golf club shaft with a club head and/or hand grip segment is disclosed to facilitate custom club design and fitting. The temporary shaft-component connection is designed for use with nonmetallic club shafts formed from a graphite-based composite material or the like having a range of different lengths and stiffness characteristics. In a shaft-head connection, a metal adapter insert is mounted onto a lower end of the club shaft and includes one or more flat surfaces for reception into a matingly shaped socket in the hosel of a selected club head to prevent relative rotation between the club shaft and head. A compression nut carried on the shaft is threaded onto the hosel to axially engage and retain a thrust flange on the shaft or adapter or adapter insert, to prevent axial separation of the club head and shaft.

Abstract: A golf club can include a universal hosel and/or hosel spacer that allows the golf club to be used with a variety of different sized club head shafts. The universal hosel can include multiple steps or ledges, and various inner diameters to accommodate different sized shafts. The spacer can be a self-expanding spacer, and can be pre-coated with epoxy. The spacer can fill in gaps within a hosel, so as to accommodate different sized shafts.

Abstract: Golf implements and methods of adjusting golf implements are provided. In some aspects, a golf implement may be a putter and a user may be capable of initially setting the lie angle of the putter. In other aspects, a golf implement may be a putter and a user may be capable of adjusting the putter between numerous lie angles, hi still other aspects, a method of adjusting a golf implement may include adjusting a putter between multiple lie angles, hi further aspects, a golf implement may be a putter including a shaft, a plurality of necks, and a head. Such a putter may provide a user with a variety of playability options.

Abstract: A putter-type golf club comprising an alignment system and a club head assembly. The putter-type club head has a body that is preferably composed of aluminum, with a rear weight disk and small inserts composed of a material denser than the material used for the remainder of the club head (excluding the neck of the club). The body has an alignment channel that is approximately the same width as a standard golf ball, and which runs from the face to the rear of the club head. In a preferred embodiment this alignment channel is black or dark in color with a white or light-colored border. The putter-type club has a neck that is inserted laterally through the side of the club head, such that it runs parallel to the face of the club head and for substantially the length of the face.

Abstract: A golf club head is presented comprising a sole including a removable panel secured to the sole via a non-threaded attachment assembly. Further, the removable panel may have a large surface area relative to its thickness, resulting in a chip-like or wafer-like weight member. This design allows the mass of the removable panel to be spread substantially along the surface of the sole as opposed to in the interior of the club head. The golf club head may comprise more than one removable panel. A removable panel of the present invention may generally comprise one or more discrete areas of higher basis weight or higher density. Even further, the removable panel may generally be releasably attached via a quick disconnect mechanism that allows easy interchangeability.

Abstract: A wood-type golf club head with an adjustable keel zone member is disclosed herein. The golf club head includes a body and an adjustable keel zone member. The body has a front portion, a crown portion and a sole portion. The body also having a heel end, a toe end and an aft end. The sole portion has only a single keel point. The adjustable keel zone member is disposed within a keel zone of the sole and located preferentially with respect to the center of gravity. The keel zone member is capable of adjusting the face angle of the wood-type golf club head.

Abstract: A golf club comprises a shaft, a club head, and a connection assembly that allows the shaft to be easily disconnected from the club head. In particular embodiments, the connection assembly includes a removable hosel sleeve that allows a shaft to be supported a desired predetermined orientation relative to the club head. In this manner, the shaft loft and/or lie angle of the club can be adjusted without resorting to traditional bending of the shaft. In another embodiment, the club head has an adjustable sole that can be adjusted upwardly and downwardly relative to the strike face of the club head, which is effective to adjust the face angle of the club head.

Abstract: A golf club includes: a shaft; a head mounted on a leading end of the shaft; and a substantially cylindrical shaft case fixed to the leading end of the shaft, wherein: the shaft case is inserted into a hosel of the head; the shaft case is fixed to the head by a bolt inserted from a sole side of the head; and a spacer is interposed between an upper end of the hosel and a flange portion formed in an upper portion of the shaft case or is removed therefrom to change an insertion depth of the shaft case into the hosel.

Abstract: A wood-type golf club head with an adjustable keel zone member is disclosed herein. The golf club head includes a body and an adjustable keel zone member. The body has a front portion, a crown portion and a sole portion. The body also having a heel end, a toe end and an aft end. The sole portion has only a single keel point. The adjustable keel zone member is disposed within a keel zone of the sole and located preferentially with respect to the center of gravity. The keel zone member is capable of adjusting the face angle of the wood-type golf club head.

Abstract: Disclosed herein is a golf club including a shaft, a club head and several devices for releasably connecting the shaft to the club head.

Abstract: Apparatus for connecting a golf club shaft to a golf club head, including an adjustment tube, and golf clubs including the same.

Abstract: Apparatus for connecting a golf club shaft to a golf club head, including an adjustment tube, and golf clubs including the same.

Abstract: A golf club head comprising an aerodynamic hosel is disclosed herein. In one embodiment, the hosel has an upper portion and a swept transition portion which connects to the golf club head, and all points at which the swept transition portion contacts the club head are spaced rearwardly from a vertical face plane. In a further embodiment, both the upper portion and the swept transition portion comprise coaxial shaft receiving bores. In yet another embodiment, the swept transition portion of the hosel has a trailing edge that is truncated, or that has one or more surface discontinuities. In yet another embodiment, the swept transition portion has a height and a diameter, each of which is less than or equal to one inch.

Abstract: The present invention relates to a hosel for connecting a shaft to a club head. In one aspect of the invention, the hosel comprises a body having an undercut, wherein the undercut has a maximum cross section which tapers to a minimum cross section and increases to the maximum cross section immediately adjacent the club head. The hosel further comprises a flange section below the hosel and hosel bore above the undercut, the hosel bore section having a length of at least one inch. In another aspect of the invention, the hosel tapers in diameter from a maximum to a minimum width, and has a maximized interior mold line (IML) to improve bendability and weight savings.

Abstract: A golf putter with a novel offset and shaft-attachment design is disclosed and claimed. The club includes a head having a strike surface, a sole, and a top line. A tube is coupled to the head, a coupling member is coupled to the distal end of the tube, and a shaft is also coupled to the coupling member. The coupling member connects the tube and the shaft such that they are relatively offset. The longitudinal axes of the tube and the shaft may be substantially parallel, or the coupling member may be adjustable such that the longitudinal axes are not parallel. An alignment indicia is provided on the club head. The tube is coupled to the head at an angle such that it blocks the indicia from a user's view at address when the head is aligned properly. If the club head is not properly aligned, the golfer will be able to see the indicia and therefore know to adjust the club head before putting. Thus, putter disclosed and claimed herein provides both offset and a putting alignment aide.

Abstract: A golf club including a head, a removable assembly and a shaft is disclosed. The head has a body, a striking panel and a sleeve. The body is coupled with the striking panel. The sleeve is sandwiched between the body and the striking panel. The sleeve comprises a neck and an assembling portion. The neck protrudes from a combined structure of the body and the striking panel, and the assembling portion is sandwiched between and enclosed by the body and the striking panel. The neck has an assembling hole. The assembling portion has at least one engaging hole extending from a surface of the assembling portion to a circumferential wall of the assembling hole. At least one engaging medium is placed in the engaging hole. The removable assembly is disposed in the assembling hole and coupled with the engaging medium. The shaft has one end inserted into the removable assembly.

Abstract: A wood-type golf club head with an adjustable keel zone member is disclosed herein. The golf club head includes a body and an adjustable keel zone member. The body has a front portion, a crown portion and a sole portion. The body also having a heel end, a toe end and an aft end. The sole portion has only a single keel point. The adjustable keel zone member is disposed within a keel zone of the sole and located preferentially with respect to the center of gravity. The keel zone member is capable of adjusting the face angle of the wood-type golf club head.

Abstract: A golf club head is presented comprising a sole including a removable panel secured to the sole via a non-threaded attachment assembly. Further, the removable panel may have a large surface area relative to its thickness, resulting in a chip-like or wafer-like weight member. This design allows the mass of the removable panel to be spread substantially along the surface of the sole as opposed to in the interior of the club head. The golf club head may comprise more than one removable panel. A removable panel of the present invention may generally comprise one or more discrete areas of higher basis weight or higher density. Even further, the removable panel may generally be releasably attached via a quick disconnect mechanism that allows easy interchangeability.

Abstract: A golf club head is presented comprising a sole including a removable panel secured to the sole via a non-threaded attachment assembly. Further, the removable panel may have a large surface area relative to its thickness, resulting in a chip-like or wafer-like weight member. This design allows the mass of the removable panel to be spread substantially along the surface of the sole as opposed to in the interior of the club head. The golf club head may comprise more than one removable panel. A removable panel of the present invention may generally comprise one or more discrete areas of higher basis weight or higher density. Even further, the removable panel may generally be releasably attached via a quick disconnect mechanism that allows easy interchangeability.

Abstract: Embodiments of golf club heads with hosel weights are disclosed herein. Other examples and related methods are also presented herein.

Abstract: A golf club includes: a hosel of a head to which a leading end of a shaft is attached; a weight material for adjusting weight being provided in a lower end portion of a hosel hole; and a communication opening which communicates the lower end portion of the hosel hole with an inside of the head, wherein the weight material is detachably screwed into the communication opening.

Abstract: A golf club comprises a shaft, a club head, and a connection assembly that allows the shaft to be easily disconnected from the club head. In particular embodiments, the connection assembly includes a removable hosel sleeve that allows a shaft to be supported a desired predetermined orientation relative to the club head. In this manner, the shaft loft and/or lie angle of the club can be adjusted without resorting to traditional bending of the shaft. In another embodiment, the club head has an adjustable sole that can be adjusted upwardly and downwardly relative to the strike face of the club head, which is effective to adjust the face angle of the club head.

Abstract: The present invention relates to a method for forming golf club head using metal injection molding and the resulting golf club head. The method of the invention allows for a lower volume of powdered metal than current metal injection molding processes thereby decreasing overall production cost.

Abstract: A putter head is positioned to be even with the ball when the shaft is at the vertical plane of the ball. The lie of the shaft can be adjusted relative to the head between limits. An insert in the club head secures the tip of the crook of the shaft. A worm gear permits infinite adjustment of lie within a range. The insert can be of different weights to weight the club for various conditions.

Abstract: A golf club alignment system, including: (a) a golf club shaft; (b) a golf club head connected to the golf club shaft, the golf club head including: (i) a hosel received onto an end of the golf club shaft; (ii) a ball-hitting face extending from the hosel; and (iii) an alignment system on the hosel, wherein the alignment system comprises a longitudinally extending marker positioned in a plane passing through a center axis of the golf club, and wherein the longitudinally extending marker terminates in an arrow point at the upper end of the hosel.

Abstract: This disclosed subject matter provides twin-axis sports equipment wherein a structure connecting a main shaft and a striking portion comprises two axes. The sports equipment can be a golf club, a hockey stick, an ice hockey stick, a tennis racket, a badminton racket, or the like. The striking portion can be configured as the striking portion of a golf club driver, wood, iron or putter, and can include a golf club driver, wood, iron, or putter having a punched hole or a dimple. A void can be formed in the striking portion, from a toe side and a heel side of the striking portion, which further connects with a main shaft.

Abstract: A golf club head includes a body having a front face for impacting a golf ball and a hosel having a bore for receiving one end of a golf club shaft. The body including the hosel may be made of a material such as steel. A hosel weight mounted on the hosel may be made of another material such as tungsten which has a greater density than the material forming the body.

Abstract: A golf club having a shaft, a club head and a connection region structure provides an angled connection of the shaft to the club head. The connection region structure includes a first end, a second end and a bore extending from the first end toward the second end. The first end has an opening to receive the distal end of the shaft. The second end is opposite to the first end and includes a mounting surface. The bore receives the distal end of the shaft and defines a longitudinal axis. The mounting surface is at a non-zero angle to a perpendicular to the longitudinal axis of the bore. Further, the mounting surface abuts the first surface of a shaft-attachment structure that projects from a main body of the club head.

Abstract: A golf club head is presented comprising a sole including a removable panel secured to the sole via a non-threaded attachment assembly. Further, the removable panel may have a large surface area relative to its thickness, resulting in a chip-like or wafer-like weight member. This design allows the mass of the removable panel to be spread substantially along the surface of the sole as opposed to in the interior of the club head. The golf club head may comprise more than one removable panel. A removable panel of the present invention may generally comprise one or more discrete areas of higher basis weight or higher density. Even further, the removable panel may generally be releasably attached via a quick disconnect mechanism that allows easy interchangeability.

Abstract: Embodiments of golf club attachment mechanisms and methods to attach golf clubs are described herein. Other embodiments and related methods are also disclosed herein.

Abstract: A golf putter with a novel offset and shaft-attachment design is disclosed and claimed. The club includes a head having a strike surface, a sole, and a top line. A tube is coupled to the head, a coupling member is coupled to the distal end of the tube, and a shaft is also coupled to the coupling member. The coupling member connects the tube and the shaft such that they are relatively offset. The longitudinal axes of the tube and the shaft may be substantially parallel, or the coupling member may be adjustable such that the longitudinal axes are not parallel. An alignment indicia is provided on the club head. The tube is coupled to the head at an angle such that it blocks the indicia from a user's view at address when the head is aligned properly. If the club head is not properly aligned, the golfer will be able to see the indicia and therefore know to adjust the club head before putting. Thus, putter disclosed and claimed herein provides both offset and a putting alignment aide.

Abstract: A weight material is provided on a heel side of a hosel portion in a golf club head. A convex portion E is provided on the heel side of the head. The weight material is disposed within the convex portion. The weight material is made of high specific gravity metal such as tungsten, and welded on both a lower column and a skirt portion.

Abstract: A golf club head includes a first portion forming a part of the head body of the golf club head, a second portion forming another part of the head body of the golf club head, and an intermediate layer. The first portion, the second portion, and the intermediate layer are made of different materials. Each of the first portion and the second portion has an abutting portion, with the intermediate layer being positioned between the abutting portion of the first portion and the abutting portion of the second portion. The intermediate layer and the abutting portion of the first portion are joined together by friction welding, and the intermediate layer and the abutting portion of the second portion are joined together by friction welding, thereby forming a golf club head product.

Abstract: Disclosed is a shank of a four-piece forging of golf club head. Atop piece of the four-piece forging of club head forms, at a portion thereof adjacent to the shank, a two-staged structure of an outward flaring sector-shaped connection portion that is combined with the shank, whereby an abutting condition exhibiting a smooth surface is formed at a jointing site between the shank and the club head in the course of performing welding operation between the shank and the club head for reducing the amount of filling material used in carrying out the welding operation and making the welding operation, as well as the subsequent grinding operation, easier and smoother. Thus, with the quality improved, the flexibility of design can also be enhanced to reduce the machining time and the manufacturing costs.