Abstract: The present invention discloses an iron-type golf club head having features that permit adjustment to the principal moment of inertia angle, the center of gravity location, turf interaction, loft, and overall club forgiveness. In particular, the golf club head includes a rear cavity sized to receive a weight cartridge composed of one or more materials, the adjustment of which changes one or more of the mass properties of the golf club head and also changes the interaction of the golf club head with turf during play. The weight cartridge may comprise one or more high density materials, and may be located in or proximate the sole.

Abstract: Embodiments of golf club weight attachment mechanisms are described herein. In some embodiments, a golf club head comprises a head body with an interior cavity, a shell portion, and a bracket with a weight member coupled to the bracket. In one embodiment, the bracket and the weight member can be configured to be fully contained within the interior cavity. Other examples and related methods are also described herein.

Abstract: A golf club head comprises a body, a track formed in or attached to the body and having a length and a weight and weight retainer. The weight is continuously repositionable such that it can be positioned at any selected point along the track between its ends. The weight has a major dimension, and the weight retainer comprises a fastening member having a diameter not greater than about one half of the major dimension of the weight.

Abstract: A head 4 includes a head body h1, a socket 10, and a weight body 12. The weight body 12 has an engaging part 32. The socket 10 has a first hole part 18 and a second hole part 20. The engaging part 32 can take an engaging position EP and a non-engaging position NP in the second hole part 20 by relative rotation of an angle ?. Hardness Hs of the second hole part 20 is D40 or greater and D58 or less. The second hole part 20 has a resistance surface 84 elastically deformed in the middle of the relative rotation. A longest sectional size of the engaging part 32 is defined as d1, and a distance between the resistance surfaces 84 opposed to each other is defined as F1, a ratio (F1/d1) is 0.935 or greater and 0.965 or less.

Abstract: A golf club 1 includes a head 3 and a shaft 5. The head 3 has a head body M3, a grounding member Y1 and a movement restricting member Y2. The head body M3 has a sole s3. The sole s3 has a slide part S1 that can slide the grounding member Y1. The movement restricting member Y2 restricts slide movement of the grounding member Y1 while allowing the grounding member Y1 to be fixed at a plurality of slide positions. A face angle can be varied depending on the plurality of slide positions of the grounding member Y1.

Abstract: Golf club heads comprising weighted materials that can be added, removed, and moved in order to change the weight and center of gravity of the club. In some instances, the weighted material is a polymer composition comprising metal and having a specific gravity greater than about 4. Also disclosed are methods of modifying the center of gravity of a golf club head and methods of manufacturing golf club heads.

Abstract: A golf club head having a low-density insert located in a top portion thereof. The insert may be only in the top line of the club head or extend from the heel around the toe. The insert may extend through a hosel and optionally be visible on a heel-side surface. The insert may be mounted on a back surface of a striking face, and may extend a distance down the back surface. The insert may extend into, and provide part of, a golf ball striking face.

Abstract: A golf club head comprises a body and at least one self-extracting pressed weight assembly. The body comprises a face plate positioned at a forward portion of the golf club head, a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion of the golf club head and a skirt positioned around a periphery of the golf club head between the sole and the crown. The body defines an interior cavity. The weight assembly comprises at least three components and is configured for a press fit engagement with the golf club head. The assembly has a drive portion and a threaded portion.

Abstract: An iron golf club head includes a hosel part embedded member installed in a hosel part thereof, a sole part embedded member installed in a sole part thereof, and a top part embedded member installed in an upper portion of a face part of thereof. In a shank part (neck part) connecting the hosel part to the body part, a connecting embedded member for connecting the hosel part embedded member to the sole part embedded member is installed. These embedded members are covered with a synthetic resin layer. The hosel part embedded member and the connecting embedded member each are preferably made of a metal.

Abstract: A golf club head having a center of gravity located at a point close to the face and the sole is disclosed herein. In particular, the golf club head comprises a hollow body including a weight lip and face component, and the weight lip extends from the sole inside the body towards the face component without making contact with the face component. The golf club head is preferably a wood-type or hybrid-type golf club head. In other embodiments, the golf club head comprises a weight bar disposed within the hollow body proximate the face component, and the weight bar bridges at least a portion of the sole. The weight bar may be movable within the hollow body to allow for center of gravity adjustment.

Abstract: According to an aspect of this invention, a golf club head includes: a head main body; and a weight material detachably mounted in a weight material mounting portion in the head main body, an external screw thread on the weight material meshing with an internal screw thread in the weight material mounting portion, wherein: the weight material comprises a head portion having the external screw thread and a rod portion which projects from the head portion; and the internal screw thread is provided on an entrance side and a cylindrical portion is provided on a deeper side for engagement with the rod portion in the weight material mounting portion.

Abstract: The present invention discloses an iron-type golf club head having a body and at least one weight disc having a first diameter, the body having a sole with a first recess, which comprises a first bore having a second diameter, a second bore having a third diameter, and a shelf located between the first bore and the second bore, the first diameter is smaller than the second diameter and greater than the third diameter, the first bore is sized to receive the at least one weight disc, the at least one weight disc rests against the shelf, and the at least one weight disc is secured within the first bore. The sole may further comprise second, third, and fourth recesses, each of which may have a first bore, a second bore, and a shelf.

Abstract: A head 4 includes a socket 10 and a weight body 12. The socket 10 has an upper hole part 18 and a lower hole part 20. The weight body 12 has an engaging part 32. The lower hole part 20 and the engaging part 32 can be relatively rotated. By the relative rotation, the weight body 12 can take an engaging position EP and non-engaging position NP. The engaging part 32 has an outermost part E1. The lower hole part 20 has a first portion 20x and a second portion 20y. The outermost part E1 can pass through the first portion 20x while compressively deforming the first portion 20x. A distance D2 between the second portion 20y and an axis line Z is greater than a distance D1 between the first portion 20x and the axis line Z.

Abstract: A golf club head having a center of gravity located at a point close to the face and the sole is disclosed herein. In particular, the golf club head comprises a hollow body including a weight lip and face component, and the weight lip extends from the sole inside the body towards the face component without making contact with the face component. The golf club head is preferably a wood-type or hybrid-type golf club head. In other embodiments, the golf club head, which may be an iron-type golf club head, comprises a weight bar disposed within the hollow body proximate the face component, and the weight bar bridges at least a portion of the sole. The weight bar may be movable within the hollow body to allow for center of gravity adjustment.

Abstract: A head 4 includes a head main body h1, a socket 10, an attachment member 11, and a weight body 12. The head main body h1 includes a socket housing portion 14. The socket 10 is attached to the socket housing portion 14. The socket housing portion 14 includes a first opening K1 through which the socket 10 can be housed. The attachment member 11 is mechanically joined to the head main body h1. The attachment member 11 is disposed so as to block at least a part of the first opening K1. The attachment member 11 controls the falling off of the socket 10 from the first opening K1. The socket 10 includes a held portion 10b. The held portion 10b is pressed by the attachment member 11. The socket 10 is formed of a polymer.

Abstract: A golf club head comprising a channel and an expandable weight that can be removably fixed at any point within the channel is disclosed herein. The weight comprises at least an upper portion, a lower portion, and a bolt, and preferably is formed of a metal material co-molded with a polymeric material such as rubber. The channel has an opening with a width that is less than the width of both an inner part of the channel and the weight, such that the weight cannot fall out of the channel during use. The channel may also have an end that opens into a port, which can be filled with a plug or weight screw to prevent the weight from falling out of the channel, and also can be removed so that the weight can be removed and replaced with another expandable weight.

Abstract: A golf club head comprises a body and at least one self-extracting pressed weight assembly. The body comprises a face plate positioned at a forward portion of the golf club head, a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion of the golf club head and a skirt positioned around a periphery of the golf club head between the sole and the crown. The body defines an interior cavity. The weight assembly comprises at least three components and is configured for a press fit engagement with the golf club head. The assembly has a drive portion and a threaded portion.

Abstract: A golf club head of an iron type includes a face plate part for hitting a ball, which has a cavity part on the back side thereof; a sole part; a hosel part for connecting the head to a shaft; a viscoelastic body made to adhere to the back face of the face plate part, the viscoelastic body including a board-shaped part located on the back face of a central portion of the face plate part and extending parts extending from the board-shaped part to the toe side and the heel side of the head; and a cover plate lapping over the viscoelastic body, the cover plate including a concavity for accommodating the board-shaped part of the viscoelastic body and concave lines for accommodating the extending parts of the viscoelastic body. The cover plate has an opening, and a part of the viscoelastic body is exposed through the opening.

Abstract: A golf club iron having a head center of gravity that is low and forward enough to provide a better swing, good striking and swinging feel, and improved ball flight is disclosed. The iron has a recess in a leading edge region and a high density insert disposed within the recess to achieve the desired center of gravity location.

Abstract: A golf club includes a shaft and a club head. The club head includes a body member having a ball striking face, a heel, a toe, a back, a crown, a sole, and a hosel region located at the intersection of the ball striking face, the heel and the crown. The sole includes a channel extending from the hosel region toward the toe. An insert is received within the channel. The club head further includes means for detachably securing the insert to the channel. A second insert configured for being received within the channel may be provided.

Abstract: A golf club head having a face component, a crown, and a sole or a body patch with one or more weight ports for receiving one or more weight inserts is disclosed herein. At least part of each of the weight ports is integrally formed in the sole or body patch, and each of the weight ports includes an upper edge, a lower edge, and a wall having a variable thickness and varying radius.

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, a sleeve including a top portion, a middle portion connected to the top portion is described. The middle portion includes a thin wall thickness. A bottom portion is connected to the middle portion including a plurality of engaging surfaces. A central longitudinal axis and an offset angle offset from the central longitudinal axis is described. The offset angle allows a maximum loft change of about 0.5 degrees to about 4.0 degrees. The total weight of the sleeve is less than about 9 g.

Abstract: A golf club-head can have a body having a crown, a heel, a toe, and a sole, the body defining a front opening; and a face plate closing the front opening of the body, the face plate comprising a lay-up of multiple, composite prepreg plies, wherein at least a portion of the plies comprise a plurality of elongated prepreg strips arranged in a crisscross pattern defining an overlapping region where the strips overlap each other. The face plate also includes an exterior and interior surface and having an image or indicia printed on the exterior surface.

Abstract: A ball striking device may include a ball striking plate having a front surface configured to strike a ball and a rear surface opposite the front surface. The ball striking device may include a covering element located behind the rear surface. The covering element may be affixed to the rear surface of the ball striking plate with an adhesive member. The adhesive member may include a double-sided tape. Further, a thickened portion of the ball striking plate may be located behind a desired-contact region of the ball striking plate and the covering element may be affixed thereto. The covering element may be a highly-contoured element. The ball striking device may be a golf club head.

Abstract: A golf club head includes a face; a body, the body defining an interior and an exterior; the face and the body together defining a center of gravity, the center of gravity being proximate the face; a coefficient of restitution feature defined in the body; wherein the coefficient of restitution feature defines a gap in the body. A golf club head includes a face and a golf club body; the face and the golf club body defining a center of gravity, the center of gravity defined a distance, ?z, from a ground plane as measured along a z-axis, the center of gravity defined a distance, CGy, from the center face along the y-axis.

Abstract: A golf club head includes a head body having a crown, sole and skirt therebetween, the head body defining an opening in a front portion and having a frame support around the periphery of the opening. A face plate is mounted within the opening and has a transition radius along one or more edges to at least partially wrap around one or more of the crown, sole and skirt. The head includes thin wall zones in the crown and skirt, a hosel flush with the crown and a weight mounted in the sole proximate to the face plate, such that the golf club head has a center of gravity located relatively low and forward in proximity to the face plate.

Abstract: Some embodiments include a club head with sole mass element. Other embodiments of related club heads and methods are also disclosed.

Abstract: A golf club having features that permit easy customization by consumers is disclosed herein. The golf club includes at least one weight port, at least one removable weight port insert, which may be a weight port ring or one or more weight port medallions, and at least one weight screw. The weight port of the golf club head preferably is non-circular and asymmetric.

Abstract: An iron-type golf club head comprising a high strength face plate with a face support is disclosed herein. In particular, the face plate is affixed to a perimeter region and to a face support that extends upwards from the sole proximate a front opening. The face plate preferably is welded to the perimeter region and brazed to the face support to optimize the sound and feel of the golf club head while preserving the strength of the face.

Abstract: A weight screw for a golf club head having one or more weight ports is disclosed herein. A set of weight screws is also disclosed herein, the set comprising at least one low-weight screw comprising multiple materials and at least one weight screw comprising a single material.

Abstract: Wood-type golf clubs and/or golf club heads include: (a) a golf club head base member including a face member having a ball striking face; and (b) a polymeric body member engaged with the golf club head base member, wherein the polymeric body member is formed via a rotational molding process (or other centrifugal force inducing molding process) and/or engaged with the golf club head base member via a rotational molding process (or other centrifugal force inducing molding process). The polymeric body member forms at least a portion of a crown member of the club head in some structures.

Abstract: Golf club heads include at least one weight port situated to retain weights and positioned above an approximate club face geometric center with the club in a standard address position. One, two, or more weight ports can be located above the club face center in a club crown or other portion of a club body. Club head vertical center of gravity can be selected to compensate dynamic loft associated with locating the club head center of gravity well behind the club face. Three-dimensional adjustment of club head center of gravity is possible.

Abstract: Golf club heads include: (a) a club head body having a ball striking face and defining a rear cavity; (b) a fluid-filled bladder in the cavity; and (c) a retaining member holding the fluid-filled bladder in the cavity. Other club heads include: (a) a club head body having a ball striking face and defining a rear cavity; and (b) an insert member in the rear cavity, wherein the insert member interior includes one or more chambers facing the rear surface of the ball striking face. The chamber(s) may cover at least 30% of a total surface area of the interior surface of the insert member and/or at least 30% of a total interior major surface area of the rear cavity. Golf clubs including these club heads and methods of making such golf clubs and golf club heads also are described.

Abstract: The invention provides a golf club head that includes a weight adjustment system inside of the club head. Preferably, when the club is played, no part of the adjustment system is directly accessible or exposed to an exterior of the club. The club head may include a panel that opens or is removable, or the club head may be disassembled to provide access to the internal weight adjustment system. A weight adjustment system generally includes at least one mechanism by which a mass distribution of the golf club head can be changed.

Abstract: A golf club head with means for adjusting a center of gravity along more than one axis and means adjusting at least one of a characteristic selected from the group consisting of face angle, loft angle, and lie angle is disclosed herein. The golf club head may comprise one or more adjustable features such as weight bars, weight screws, weight cartridges, and adjustable sole members.

Abstract: A golf club head is presented comprising a sole including a weight member secured to a weight mount. The weight member is preferably constructed so that it has a low profile and so that it interacts with an angled abutment portion of the weight mount to locate the weight member in the golf club head.

Abstract: Embodiments of golf club heads and methods to manufacture golf club heads are disclosed herein. Other examples and related methods are also generally described herein.

Abstract: The present invention discloses an iron-type golf club head having features that permit adjustment to the principal moment of inertia angle, the center of gravity location, turf interaction, loft, and overall club forgiveness. In particular, the golf club head includes a rear cavity sized to receive a weight cartridge composed of one or more materials, the adjustment of which changes one or more of the mass properties of the golf club head and also changes the interaction of the golf club head with turf during play. The weight cartridge may comprise one or more high density materials, and may be located in or proximate the sole.

Abstract: A head body h1 includes a recess part 14 for a socket. A socket 10 is attached to the recess part 14 for a socket. A weight body 12 is detachably attached to the socket 10. The weight body 12 can be secured by relative rotation of an angle +?°. The weight body 12 can be detached by relative rotation of an angle-?°. The weight body 12 includes an engaging part 32. The socket 10 includes a first hole part 18 and a second hole part 20. The engaging part 32 can take an engaging position EP and a non-engaging position NP at the second hole part 20 by the relative rotations. A sectional shape of the engaging part 32 has N-fold rotation symmetry. N is an integer of 1 or greater and 3 or less.

Abstract: A golf club head includes a body defining an interior cavity. The body includes a sole positioned at a bottom portion of the golf club head, a crown positioned at a top portion, and a skirt positioned around a periphery between the sole and crown. The body has a forward portion and a rearward portion. The club head includes a face positioned at the forward portion of the body. The face defines a striking surface having an ideal impact location at a golf club head origin. Some embodiments of the club head form a club head for a fairway wood that has a high moment of inertia, a low center-of-gravity and a thin crown.

Abstract: A golf club having features that permit easy customization by consumers is disclosed herein. The golf club includes at least one weight port, a ribbon, at least one removable weight port ring, and at least one removable ribbon insert.

Abstract: A wood-type golf club head comprises a body having one or more ribs extending across the internal surface of the sole. The plurality of ribs can include two or more ribs, such as three or four ribs, that converge at a convergence location, such as above a recessed pocket in the sole configured to receive an adjustable sole piece. At least one rib can extend along an internal surface of the recessed pocket and along an internal surface of a surrounding sole region. The ribs can extend from the convergence location to a toe weight port, to a heel weight port, to a rear portion of the body and/or toward the face. At least one rib can extend from a hosel, such as to the toe weight port.

Abstract: A golf club having features that permit easy customization by consumers is disclosed herein. The golf club includes at least one weight port, at least one removable weight port insert, which may be a weight port ring or one or more weight port medallions, and at least one weight screw. The weight port of the golf club head preferably is non-circular and asymmetric.

Abstract: A golf club head having a face component, a crown, and a composite sole or a composite body patch with one or more weight ports for receiving one or more weight inserts is disclosed herein. At least part of each of the weight ports is integrally formed in the composite sole or composite body patch, and each of the weight ports includes an upper edge, a lower edge, and a wall having a variable thickness and varying radius.

Abstract: A weight screw for a golf club head having one or more weight ports is disclosed herein. A set of weight screws is also disclosed herein, the set comprising at least one low-weight screw comprising multiple materials and at least one weight screw comprising a single material.

Abstract: The present invention discloses an iron-type golf club head having features that permit adjustment to the principal moment of inertia angle, the center of gravity location, and overall club forgiveness. In particular, the golf club head includes a rear cavity sized to receive a weight cartridge composed of one or more materials, the adjustment of which changes one or more of the mass properties of the golf club head and may change the interaction of the golf club head with turf during play, and a composite face plate. The weight cartridge may comprise one or more high density materials, and may be located in or proximate the sole.

Abstract: A golf club with a new innovative construction to attach a high density weight to an external surface of the sole of a golf club head is disclosed herein. More specifically, the present invention relates to utilizing a thickened sole portion having a specific surface area to thickness ratio to provide adequate support for a high density weight having a significant amount of mass. The new innovative method of attachment also incorporates a unique mechanical lock to properly secure the high density weight to the club head, as materials used for high density weighting may not be easily weldable to the titanium material currently used for metalwood type golf club head.

Abstract: Some embodiments include a club head for adjusting vertical spin of a golf ball. Other embodiments of related systems and methods are also disclosed.

Abstract: A golf club head, comprising a weight mount comprising a first portion and a second portion, a first weight member and a second weight member, each configured to be coupled to said weight mount, a single fastener configured to force said first weight member to translate in a first direction towards said first portion of said weight mount and said second weight member to translate in a second direction towards said second portion of said weight mount, wherein said first direction is different than said second direction, and wherein said fastener, said first portion of said weight mount, and said second portion of said weight mount are configured to limit said first weight member and said second weight member from moving relative to said weight mount.

Abstract: A golf club head comprising a weight mount including a weight recess and a stud, wherein said weight mount is disposed on at least one of said sole, said crown and said skirt, and wherein at least a portion of said stud comprises external threads, a weight member comprising a non-circular shape, wherein a majority of said weight member is configured to reside in said weight recess of said weight mount, wherein said weight member includes a weight bore formed through said weight member, a nut including an internally threaded bore, said internally threaded bore configured to engage said stud of said weight mount, wherein at least a portion of said nut resides within said weight bore of said weight member, wherein said nut is rotatably coupled to said weight member, wherein said weight member comprises a snap ring groove.