Abstract: To obtain a golf club and a connecting member for a golf club shaft and a golf club head that can provide a flexibility in choice of reshafting to a user regardless of types of the golf club shaft and the golf club head and that can also provide excellent strength and/or appearance. A connecting member connects an inner-hosel-type golf club shaft and an over-hosel-type golf club head. The connecting member includes a hybrid structure combining different kinds of material.

Abstract: Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion having a toe portion, a heel portion, a top portion, a sole portion, a back portion, and a front portion. A hosel portion may have a hosel base portion attached to the top portion. A hosel upper portion may extend from the hosel base portion. A hosel transition portion may be between the hosel base portion and the hosel upper portion. The hosel transition portion may provide a gradual transition between an outer surface of the hosel base portion and an outer surface of the hosel upper portion. A shaft may be mounted on the hosel portion and may have an end portion configured to engage the hosel transition portion. Other examples and examples may be described and claimed.

Abstract: Examples of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, a golf club head may include a body portion with a toe portion, a heel portion, a rear portion, a front portion with a strike face, a sole portion, and a top portion with a plurality of weight ports. The body portion may define a periphery of the golf club head. The golf club head may also include a plurality of weight portions with each weight portion disposed in one weight port of the plurality of weight ports. Other examples and examples may be described and claimed.

Abstract: A sleeve 8 fixed to a shaft 6 includes an engaging projection part P1. A head 2 includes an engaging recess part R1. The engaging projection part P1 includes a first side surface P11 located on a side receiving a rotating force by hitting, a second side surface P12 located on an opposite side to the first side surface P11, and an outer surface P13. The engaging recess part R1 includes a first opposed surface R11 opposed to the first side surface P11, a second opposed surface R12 opposed to the second side surface P12, and an inner surface R13 opposed to the outer surface P13. The engaging projection part P1 has a tapered projection part TP1. The part TP1 has a maximum width equal to or greater than an opening width of the engaging recess part R1. The outer surface P13 includes an outer inclination surface K13.

Abstract: Embodiments of golf coupling mechanisms are presented herein. Other examples and related methods are also disclosed herein.

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 ladder-like shooting/catching section for a lacrosse stick pocket defined by at least two elongate runners (flat strips) extending from proximate the scoop of the head toward the throat, and a plurality of generally V-shaped chevrons straddling the runners and overmolded thereto. Alternately, the chevrons and runners are formed from a single material. The chevrons have a three-dimensional profile and each is slightly concave along its length, such that the chevrons collectively define a passing/catching chute. The chute increases surface contact with the ball and improves feel. This in combination with the shock-absorbing living hinge function provided by the chevrons makes throwing and catching smoother as well as more consistent, generally improving playability of the lacrosse stick.

Abstract: A method of constructing a golf club head, comprising affixing a hosel to a shell, wherein said shell comprises a striking face, a sole extending aftward from a lower edge of said ball striking face, and a crown extending aftward from an upper edge of said ball striking face, wherein said shell defines a golf club head interior within said shell, wherein said hosel is configured to receive a golf club shaft, wherein said hosel comprises an internal portion within said golf club head interior and an external portion extending outside said shell, wherein said golf club head comprises a hosel rib affixed to said internal portion of said hosel, manipulating the orientation of said hosel relative to said shell after affixing said hosel to said shell, and affixing said hosel rib to said shell after manipulating the orientation of said hosel.

Abstract: A golf club includes: a shaft; a head mounted on the leading end of the shaft; and a shaft case having a substantially cylindrical shape and fixed to the leading end of the shaft and inserted into a hosel formed in the head, the shaft case being fixed to the head by a bolt inserted from the sole side of the head, wherein the shaft case includes a small-diameter cylindrical portion on the leading end side thereof and a key portion formed on the outer peripheral surface of the small-diameter cylindrical portion, and multiple slits having different depths and engageable with the key portion are formed in the deep portion of the inside of the hosel, whereby, by changing the slits engageable with the key portion, the insertion depth of the shaft case into the hosel can be changed.

Abstract: The present invention relates to a golf club in which a shaft arranged beneath a grip portion of the golf club is processed to be used as means for grip swing performed by rotating the golf grip locally between both hands of a golfer. The aim of the present invention is to enable forces of both hands and both arms of the golfer and the weight of the golf club to be dynamically balanced at one or more center of gravity portions (S) designed at a specific position on the shaft beneath the grip during a typical gripping and swinging action of the golfer, that is, said center of gravity portions (S) may serve as a hinge or weight of minimum swing performed between both hands of the golfer, thereby enabling fine swing control.

Abstract: A golf club having removable components is disclosed herein. The golf club having removable components includes a club head, a shaft, and a connection assembly. The connection assembly includes a sleeve mounted on the tip end of the shaft and a screw-cap. The sleeve has an offset aperture for receiving the tip end of the shaft in order to adjust the face angle of the golf club. The screw-cap is mounted over the sleeve and includes a body having an upper area and a threaded area, the latter of which is capable of engaging the upper threaded portion of the hosel to removably secure the shaft to the club head.

Abstract: A system of interchangeable club heads sharing one or more shafts and golf bag for carrying the club heads and one or more shafts. The club heads contain a shaft segment to set club length and a coupler to interconnect to the shaft and grip. The shaft contains an opposite gender coupler. The system is very lightweight and much more portable than a conventional set of golf clubs. It also creates the opportunity for players to match club heads with shafts with differing performance characteristics. Additionally, it solves a problem for golfers using long shafts on putters. These long shafts can now be disassembled for storage and transport.

Abstract: According to one aspect of the present invention there is provided an adjustable connector including at least two parts, each having a main body with a bore having a longitudinal axis therein, wherein an external surface of the main body of a first part is configured to bear against an internal surface of the bore of a second part when the first part is at least partially inserted into the bore of the second part to form a connection, characterized in that the positioning of the bores with respect to the main bodies is such that when the parts are connected to each other, rotation of one part with respect to the other changes the inclination of the longitudinal axes of the bores with respect to one another.

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 system of interchangeable club heads sharing one or more shafts and golf bag for carrying the club heads and one or more shafts. The club heads contain a shaft segment to set club length and a coupler to interconnect to the shaft and grip. The shaft contains an opposite gender coupler. The system is very lightweight and much more portable than a conventional set of golf clubs. It also creates the opportunity for players to match club heads with shafts with differing performance characteristics. Additionally, it solves a problem for golfers using long shafts on putters. These long shafts can now be disassembled for storage and transport.

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 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 ferrule, and a golf club incorporating same, are provided. The ferrule defines an axial bore for receiving a club shaft therethrough. A bottom portion of the ferrule is sized to receive and surround an upper end of a hosel of a club head. The ferrule can further include a chamfered or rounded, annular edge formed on a bottom end thereof. The hosel and the ferrule are cooperatively configured to inhibit movement of the ferrule and, preferably, axial rotation and longitudinal movement of the ferrule are both inhibited by engagement of corresponding surfaces of the ferrule and the hosel. Preferably, protrusions at an upper, interior surface of the ferrule body serve to center the shaft within the ferrule and to enhance a flow of adhesive between the shaft, hosel and ferrule. Preferably, ribs at a lower, interior surface of the ferrule are received in corresponding grooves formed on an upper exterior surface of the hosel. These ribs serve to locate and initially fix the ferrule onto the hosel of the club head.

Abstract: Golf club heads are releasably engaged with shafts so that the club heads and shafts can be readily interchanged and/or so that the shaft position with respect to the club head can be readily changed. Assemblies for connecting the club head and shaft may include: a shaft adapter, a collet, a ferrule, and a club head having an interior chamber. The club head and shaft may be changed by releasing the securing system and exchanging the original parts with different parts. Furthermore, the shaft may be bent or otherwise extend at an angle from the shaft adapter so as to allow adjustment of the shaft position with respect to the club head.

Abstract: A system of interchangeable club heads sharing one or more shafts and golf bag for carrying the club heads and one or more shafts. The club heads contain a shaft segment to set club length and a coupler to interconnect to the shaft and grip. The shaft contains an opposite gender coupler. The system is very lightweight and much more portable than a conventional set of golf clubs. It also creates the opportunity for players to match club heads with shafts with differing performance characteristics. Additionally, it solves a problem for golfers using long shafts on putters. These long shafts can now be disassembled for storage and transport.

Abstract: A ferrule, and a golf club incorporating same, are provided. The ferrule defines an axial bore for receiving a club shaft therethrough. A bottom portion of the ferrule is sized to receive and surround an upper end of a hosel of a club head. The ferrule can further include a chamfered or rounded, annular edge formed on a bottom end thereof. The hosel and the ferrule are cooperatively configured to inhibit movement of the ferrule and, preferably, axial rotation and longitudinal movement of the ferrule are both inhibited by engagement of corresponding surfaces of the ferrule and the hosel. Preferably, protrusions at an upper, interior surface of the ferrule body serve to center the shaft within the ferrule and to enhance a flow of adhesive between the shaft, hosel and ferrule. Preferably, ribs at a lower, interior surface of the ferrule are received in corresponding grooves formed on an upper exterior surface of the hosel. These ribs serve to locate and initially fix the ferrule onto the hosel of the club head.

Abstract: Golf club heads are releasably engaged with shafts so that the club heads and shafts can be readily interchanged and/or so that the shaft position with respect to the club head can be readily changed. Assemblies for connecting the club head and shaft may include: (a) a shaft engaging member including a rotation-inhibiting structure; (b) a club head engaging member including a shaft-receiving chamber and a retaining structure for engaging the rotation-inhibiting structure; and (c) a securing system for releasably securing the shaft engaging member with respect to the club head engaging member. The club head and shaft may be changed by releasing the securing system and exchanging the original parts with different parts. Furthermore, the shaft may be bent or otherwise extend at an angle from the shaft engaging member so as to allow adjustment of the shaft position with respect to the club head.

Abstract: Golf club 2 has shaft 6, head 4, inner member 8 and screw member 10. The inner member 8 has shaft channel 46 provided so as to open on the top end side, and engaging hole 52 provided separately from this shaft channel 46. The head 4 has hosel member 22 having hosel hole 26, and head hole 70 that extends from the head external surface toward inside the head. At least a part of the inner member 8 is inserted into the hosel hole 26. The shaft 6 and the shaft channel 46 are stuck by adhesion and/or fitting. Continuous hole 76 is formed with the engaging hole 52 continuous with the head hole 70, and the screw member 10 is inserted into the engaging hole 52 and the head hole 70 through this continuous hole 70. The screw member 10 is thread connected with the engaging hole 52 and/or the head hole 70.

Abstract: A golf club (20) having a club head (22) with an interchangeable shaft (40) is disclosed herein. The golf club (20) includes a tube (44, 144) mounted in the club head (22), and a sleeve (46, 146) mounted on a tip end (50) of the shaft (40). The tube (44, 144) includes a tapered portion (60, 160) and a rotation prevention portion (62, 162). The sleeve (46, 146) has a frustoconical portion (72, 172) and a keyed portion (74, 174) that are respectively received in the tapered portion (60, 160) and the rotation prevention portion (62, 162) of the tube (44, 144). The golf club (20) further includes a mechanical fastener (48, 148) for removably securing the shaft (40) to the club head (22).

Abstract: An iron-type golf club (320) having an iron-type club head (322) with an interchangeable shaft (40) is disclosed herein. The golf club (320) includes a tube (344) mounted in the hosel (331) of the club head (322), and a sleeve (346) mounted on a tip end (50) of the shaft (40). The tube (344) includes a tapered portion (360) and a rotation prevention portion (362). The sleeve (346) has a frustoconical portion (372) and a keyed portion (374) that are respectively received in the tapered portion (360) and the rotation prevention portion (362) of the tube (344). The golf club (320) further includes a mechanical fastener (48) for removably securing the shaft (40) to the club head (322).

Abstract: A golf club shaft is attached to a club head hosel by a ferrule system including a ferrule mating member and a ferrule sleeve. The mating member includes an enlarged portion on which the second ferrule is seated and a reduced portion which is seated within the club head hosel. The mating member overlaps axially with the ferrule sleeve and hosel to support the shaft extending therethrough. The reduced portion seats within a recessed annular portion of the hosel and includes radially outwardly extending projections which define flow channels therebetween through which adhesive may flow during assembly.

Abstract: A method (500) for fitting a golf club to a golfer is disclosed herein. The method includes having a golfer hit a test golf club. If the test golf club is preferred, a final golf club is formed that matches the test golf club. Preferably, the final golf club matches the following parameters of the test golf club: volume, mass, mass location, inertial values, center of gravity location, material composition and shape. In a preferred embodiment, a test golf club with an interchangeable shaft is utilized with the method.

Abstract: A golf club including a golf club head, a hosel, a ferrule, and a shaft. The hosel defines a cavity having an opening at an upper end of the hosel and an annular recess at an outer surface of the hosel. The ferrule defines an axial bore and has an annual ridge positioned within the axial bore. The ferrule also has a bottom portion that surrounds the upper end of the hosel. The shaft includes an upper end adapted to be gripped by a golfer and a lower end that extends through the axial bore and into the cavity defined by the hosel. The annular ridge and the annular recess engage each other in an interlocking fashion to inhibit rotation and longitudinal movement of the ferrule.

Abstract: A wood-type golf club head includes a substantially hollow body wherein the hosel is substantially isolated from the top wall of the body. The hosel is attached to the heel region of the bottom wall and extends upwardly through a hosel cavity. A hosel sleeve is preferably provided to substantially isolate the top wall of the club head body from the hosel.

Abstract: A golf club shaft adaptor includes a cylindrical hollow body having side walls with at least one aperture therein. The cylindrical hollow body is sized and dimensioned to be retained within the hosel of a golf club head and to retain within the golf club adaptor the distal end of a golf club shaft. The golf club adaptor is adapted with respect to its configuration and material so that it will not do damage to a golf club shaft or to a golf club head during use of the golf club.

Abstract: A golf club shaft tip diameter adjuster attached to a tip portion of a golf club shaft for adjusting a diameter of the shaft tip portion. The golf club shaft tip diameter adjuster is formed into a cylindrical tubular body out of fiber reinforced resin. A slit is defined to separate the tip diameter adjuster in the lengthwise direction thereof.

Abstract: A device for altering the angle between the shaft and the head of a golf club. The preferred embodiment of the invention utilizes a plurality of inserts which are configured to be inserted into a tapered hole in the golf club head for receiving a shaft or a hosel for mating with the shaft. Each such insert is designed to provide a different angle between head and shaft so that the golfer merely selects one of the plurality of inserts which will be best for his or her hitting accuracy. The inserts are positioned in the club head in such a way as to create a swaging of the insert into the club head and the insert onto the shaft tip. Swaging is the interference fit of two components with two or more surfaces that are forced together in a locking condition, for instance a tapered pin into a tapered hole. A swaging screw is utilized to drive the insert into a tapered swage condition with the club head and thus squeeze onto the shaft to ensure a strong bond without utilizing an adhesive.

Abstract: A golf club head, and more specifically a hosel for a golf club head, and a method of angularly orienting a golf club shaft relative to a golf club head. The hosel defines a hollow interior for receiving a golf club shaft through an opening, generally along a central longitudinal axis of the hollow interior. The hollow interior is bounded by a wall adjacent the opening, preferably including a substantially planar or flat portion.

Abstract: An interchangeable shaft golf club assembly includes a golf club head including an internally threaded hosel. A golf club shaft of a select length and stiffness has external threads about a first end and is threadably engaged with the internally threaded hosel. An internally threaded farrel threadably receives the first end of the shaft and is rotated into threaded abutment with the distal end of the hosel to secure the first end of the shaft within the hosel. The external threads about the first end of the shaft are provided by a cylindrical externally threaded connector axially receiving a first end of the shaft and being adhered thereto.

Abstract: A golf club head, and more specifically a hosel for a golf club head, and a method of angularly orienting a golf club shaft relative to a golf club head. The hosel defines a hollow interior for receiving a golf club shaft through an opening, generally along a central longitudinal axis of the hollow interior. The hollow interior is bounded by a substantially noncylindrical wall adjacent the opening, preferably including a substantially planar portion. A cross section of the wall taken approximately perpendicular to the central longitudinal axis preferably is substantially rectangular.

Abstract: A new method is disclosed of fabricating the joint between a golf club post and a drive shaft, as is the article fabricated therefrom. The golf club post to which the shaft attaches includes a circumferential recessed contour. The hollow, metal, electrically conductive golf club shaft is placed over the post, and an electric coil is placed around the shaft and post juncture. The electric coil is electrically pulsed, causing the shaft to shrink fit to the contour of the post. The electro-formed, mechanically bonded shaft is now permanently and integrally anchored to the golf club post. In a second embodiment, a non-conductive shaft of carbon fiber, for example, is electromagnetically bonded to the post, using a metallic ring, which is electromagnetically formed around the non-metallic shaft and post. In a third embodiment, the club head post is additionally fitted with at least one vertically disposed groove along the vertical axis of the post.

Abstract: This invention relates to an improved ball striking device, such as a golf club, hockey stick, or tennis racket, in which a greater striking power is imparted to the ball, puck or the like by inserting a connecting elastomeric member between the head or striking portion and the shaft portion of the device. The inherent resilient characteristics of the member allows an enhancement of the forward motion imparted to the ball.

Abstract: A ferrule for a golf club comprises a first member having at least one raised element with a top surface, and a second member molded about the first member so as to surround the raised element. The second member has a generally annular, outwardly facing surface that is at least generally flush with the top surface of the raised element, and at least one of the first and second members defines a longitudinal hole therethrough for receiving a golf club shaft. The raised element is made of a different color material than the second member, and can provide a number of functions, such as contain a logo or design, indicate the number of the club, or provide an alignment indicia for the club at the address position.

Abstract: A golf clubhead includes a male hosel, a tubular ferrule which is positioned over the hosel, and a shaft which is inserted over the male hosel and into the ferrule. The ferrule includes a pair of ends and an internal surface which includes an annular abutment between the ends of the ferrule. The bottom of the shaft abuts the abutment surface of the ferrule.

Abstract: A connecting device for a golf club putter includes a first cylindrical portion insertable into the opening of a putter head, a second cylindrical portion insertable into a hollow greater diameter and a shaft, and a flange located between the cylindrical portions and in assembled condition of the golf club putter abutting against the upper surface of the putter head and the lower surface of the greater diameter end of the shaft.

Abstract: A golf club includes a male hosel which is inserted into the lower end of a shaft. A sleeve is positioned over the lower end of the shaft and over a radially enlarged portion of the hosel. The shaft abuts a first radially extending shoulder on the hosel, and the sleeve abuts a second radially extending shoulder on the hosel.

Abstract: In construction of a joint structure between a hosel, a shaft and a ferrule, a rugged engagement is formed between the hosel and the ferrule in order to withstand a force at shooting balls which tends to move the ferrule apart from the hosel. The rugged engagement consists of at least one projection formed on one of the ferrule and the hosel and a recess formed in the other of the ferrule and the hosel.