Abstract: A ball striking device, such as a golf club head, has a face with a striking surface configured for striking a ball and a channel extending across a portion of the sole. The channel may be recessed from adjacent surfaces of the sole and have a depth of recession from the adjacent surfaces of the sole, wherein the channel comprises a center portion extending across a center of the sole, a heel portion extending from a heel end of the center portion toward the heel, and a toe portion extending from a toe end of the center portion toward the toe, wherein the width and the depth of the center portion of the channel are substantially constant, and wherein the depth of the channel is greater at the heel and toe portions than at the center portion.

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. Additionally, 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, and/or the shaft engaging member may have rotational locking structure that can be locked in a plurality of positions. Further, the golf club head may include a face member and a rear member, where the rear member is configured to transfer energy and/or momentum to the face member, particularly on off-center hits.

Abstract: A ball striking device, such as a golf club, includes a head with a face having a striking surface configured for striking a ball and being defined by a plurality of peripheral edges, a body connected to the face and extending rearwardly from the peripheral edges of the face, and a sole member connected to the sole of the body. The sole member may be removably connected to the sole, which can permit removal and replacement with another sole member having a different property. The sole member may additionally or alternately be movably connected to the sole, which can permit adjustment of the sole member, such as to change the lie angle of the head. The sole member may be at least partially received in a receiver in the sole and may form at least a portion of the lowermost surface of the 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: In general, aspects of this invention relate to golf clubs or golf club components incorporating adjustment members that permit ready adjustability of golf club parameters and/or interchangeability of golf club components to change a golf club configuration, and methods for providing golf clubs. According to aspects of this invention, an adjustment member may be utilized to allow the adjustability of a golf club parameter to change a golf club configuration, while ensuring there is substantially no change to other club or club head variables, parameters or characteristics. According to another aspect of this invention, an adjustment member may be utilized to allow the adjustability of two golf club parameters independently to change a golf club configuration, while ensuring there is substantially no change to other club or club head variables, parameters or characteristics.

Abstract: Golf club heads (e.g., drivers, fairway woods, wood-type hybrid clubs, or the like) according to at least some example aspects of this invention include a striking face and a rear portion opposite the striking face, the rear portion defining an opening to an interior cavity. A rear body member configured to be inserted into the opening is engaged with the rear portion of the club head. The rear body member may include multiple rear body parts that may be removable and/or interchangeable to permit flexibility in controlling the weight distribution of the golf club head.

Abstract: A ball striking device, such as a golf club head, has a face with a striking surface configured for striking a ball and a channel extending across a portion of the sole. The channel may be recessed from adjacent surfaces of the sole and have a depth of recession from the adjacent surfaces of the sole, wherein the channel comprises a center portion extending across a center of the sole, a heel portion extending from a heel end of the center portion toward the heel, and a toe portion extending from a toe end of the center portion toward the toe, wherein the width and the depth of the center portion of the channel are substantially constant, and wherein the depth of the channel is greater at the heel and toe portions than at the center portion.

Abstract: A ball striking device, such as an iron-type golf club head, includes a face having a ball striking surface and a rear surface, and a body connected to the face. The body has a sole member and a rear cavity defined at least partially by the sole member and the rear surface of the face. The body has an elongated, recessed channel extending within the cavity along a juncture line between the rear surface of the face and the sole member. Additionally, the head is formed in part by a face member having a first leg forming at least a major portion of the face and a second leg extending rearwardly from a bottom end of the first leg and forming at least a portion of the sole member. The head may further be formed by a body member connected to the face member.

Abstract: A ball striking device, such as a golf club, includes a head with a face having an outer surface configured for striking a ball, a body connected to the face, an elongated, inwardly recessed channel located on the body and extending across a portion of the body, and an insert mounted within the channel. The insert includes a resiliently deflectable base member that engages the channel to retain the insert within the channel and a rigid outer member connected to the base member and forming at least a portion of the outer surface of the insert, where the outer member is made from a different material than the base member. Additionally, the insert has an outer surface that is substantially flush with at least one immediately adjacent surface of the body.

Abstract: In general, aspects of this invention relate to golf clubs or golf club components incorporating adjustment members that permit ready adjustability of golf club parameters and/or interchangeability of golf club components to change a golf club configuration, and methods for providing golf clubs. According to aspects of this invention, an adjustment member may be utilized to allow the adjustability of a golf club parameter to change a golf club configuration, while ensuring there is substantially no change to other club or club head variables, parameters or characteristics. According to another aspect of this invention, an adjustment member may be utilized to allow the adjustability of two golf club parameters independently to change a golf club configuration, while ensuring there is substantially no change to other club or club head variables, parameters or characteristics.

Abstract: A ball striking device, such as a golf club head, has a face with a striking surface configured for striking a ball and a channel extending across a portion of the sole. The channel may be recessed from adjacent surfaces of the sole and have a depth of recession from the adjacent surfaces of the sole, wherein the channel comprises a center portion extending across a center of the sole, a heel portion extending from a heel end of the center portion toward the heel, and a toe portion extending from a toe end of the center portion toward the toe, wherein the width and the depth of the center portion of the channel are substantially constant, and wherein the depth of the channel is greater at the heel and toe portions than at the center portion.

Abstract: In general, aspects of this invention relate to blade-type iron golf clubs or golf club heads. The blade-type golf club head may comprise a body forged of a metal material. The body may include a hosel, a top surface, a sole, a heel, a toe, a ball striking surface, and a rear surface opposite the ball striking surface. The rear surface may have an upper blade portion and a lower muscle portion with the upper blade portion separated from the lower muscle portion by a blade interface. An average height of the lower muscle portion from the ball striking centerline to the toe-side boundary line may be approximately twice an average height of the lower muscle portion from the heel-side boundary line to the ball striking centerline. The mass distribution of the lower muscle portion moves the center of gravity of the club head closer to the face center location.

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: In general, aspects of this invention relate to blade-type iron golf clubs or golf club heads. The blade-type golf club head may comprise a body forged of a metal material. The body may include a hosel, a top surface, a sole, a heel, a toe, a ball striking surface, and a rear surface opposite the ball striking surface. The rear surface may have an upper blade portion and a lower muscle portion with the upper blade portion separated from the lower muscle portion by a blade interface. An average height of the lower muscle portion from the ball striking centerline to the toe-side boundary line may be approximately twice an average height of the lower muscle portion from the heel-side boundary line to the ball striking centerline. The mass distribution of the lower muscle portion moves the center of gravity of the club head closer to the face center location.

Abstract: A ball striking device, such as a golf club, includes a head with a face having a striking surface configured for striking a ball and being defined by a plurality of peripheral edges, a body connected to the face and extending rearwardly from the peripheral edges of the face, and a sole member connected to the sole of the body. The sole member may be removably connected to the sole, which can permit removal and replacement with another sole member having a different property. The sole member may additionally or alternately be movably connected to the sole, which can permit adjustment of the sole member, such as to change the lie angle of the head. The sole member may be at least partially received in a receiver in the sole and may form at least a portion of the lowermost surface of the head.

Abstract: A golf club head has a body member and a sole plate member where each form a portion of the sole surface of the golf club head. A layer of resilient material is disposed between body member and the sole plate member.

Abstract: Golf clubs and golf club heads having a weight member that is configurable in multiple positions to alter the performance characteristics of the golf club head are presented. In some examples, the weight member may be arranged in a sole of the golf club head and may include ends having different weighting characteristics. For instance, one end may be heavier or denser than another end of the weight member. The difference in weight characteristics may be due to different materials used to form the different ends, different construction of the ends, and the like. The position of the weight member may be adjusted to alter the performance characteristics of the golf club head. For instance, the weight member may be removed and rotated to position a heavier end where a lighter end was previously positioned.

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. Additionally, 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, and/or the shaft engaging member may have rotational locking structure that can be locked in a plurality of positions. Further, the golf club head may include a face member and a rear member, where the rear member is configured to transfer energy and/or momentum to the face member, particularly on off-center hits.

Abstract: A ball striking device, such as a golf club, includes a head with a face having an outer surface configured for striking a ball, a body connected to the face, an elongated, inwardly recessed channel located on the body and extending across a portion of the body, and an insert mounted within the channel. The insert includes a resiliently deflectable base member that engages the channel to retain the insert within the channel and a rigid outer member connected to the base member and forming at least a portion of the outer surface of the insert, where the outer member is made from a different material than the base member. Additionally, the insert has an outer surface that is substantially flush with at least one immediately adjacent surface of the body.

Abstract: A ball striking device, such as a golf club, includes a head with a face having an outer surface configured for striking a ball, a body connected to the face, and a channel located in the body. The channel is configured to influence the characteristics of the impact of a ball on the face, such as by flexing or compressing in response to the force of the impact, exerting a response or reaction force on the face, changing the motion or behavior of the face, and other manners. The head may also include a pair of channels that have a gap between them.