Abstract: Disclosed herein are various embodiments of a golf club head having improved mass distribution characteristics. The golf club head includes a body and a face positioned at a forward portion of the body. The golf club head also includes one or more mass elements positioned at predetermined locations about the head. The mass elements assist in achieving a desired relationship between the moment of inertia about a center of gravity x-axis and the moment of inertia about a center of gravity z-axis.

Abstract: A golf club head made out of multi-material is disclosed herein. More specifically, the golf club head in accordance with the present invention has at least a portion of the body of the golf club head that is further comprised out of a base layer and a lightweight cover layer. The base layer may have a plurality of cutouts to help reduce unnecessary mass and the lightweight cover layer may be made out of an ultra-lightweight material to further reduce the unnecessary mass. The resulting golf club head may generally have a deep CG wherein the CG-B location is about 37 mm, and a CG-C location is greater than about 25 mm.

Abstract: A golf club incorporating a stress reducing feature, including an aperture, located at least partially on the sole of the club head. The location and size of the stress reducing feature and aperture, and their relationship to one another, play a significant role in selectively improving the performance of the golf club.

Abstract: Provided are a golf club head and a method for producing the golf club head. The golf club head comprises a striking face that in turn comprises a recurrent texture pattern that has a period T and that is defined by a plurality of depressions, each depression having an average depth no greater than 0.10 mm. The striking face also comprises a plurality of scorelines that at least partially intersect the recurrent texture pattern and that have a scoreline pitch Ps such that T/Ps is greater than 1.0, each scoreline having an average depth no less than 0.10 mm.

Abstract: An aerodynamic golf club head having a crown section that imparts beneficial aerodynamic properties due in part to the location of a crown apex and the curvature of the crown section.

Abstract: Golf club heads are described herein, and in one embodiment including a body with an exterior surface defining a first body volume of at least about 400 cm3. The body has a bottom portion, a top portion, a front portion, and a back portion. A face positioned at the front portion of the body and is configured to receive an impact. A top portion silhouette profile located along a perimeter of the top portion is further described. The top portion silhouette profile defines the outer bounds of the top portion in an X-direction and Y-direction. At least one indentation can be located on the bottom portion below the crown silhouette profile. The removal of the at least one indentation from the bottom portion can create a second body volume that is at least 12 cm3 larger than the first body volume.

Abstract: Golf club head embodiments disclosed herein comprise a crown having a stepped portion located between a front portion of the crown and rear portion of the crown, such that the crown transitions steeply in height across the stepped portion from the front portion down to the rear portion. The stepped portion of the crown may extend from adjacent to the hosel in a toeward and rearward direction.

Abstract: A golf club head according to the present invention includes: a head main body including a crown part and a sole part, and having an opening surrounded by the crown part and the sole part; and a face member covering the opening in the head main body. The face member is formed in a cup-like shape, including a face part formed in a planar shape and a peripheral edge part extending from a peripheral edge of the face part. An end surface forming the opening in the head main body is formed extending parallel to the face part. The crown part of the head main body includes: a front-side region extending in a toe-heel direction along an edge part on the side where the opening is located; and a rear-side region located further on a back side than the front-side region and being thinner than the front-side region.

Abstract: Embodiments of golf clubs and methods to manufacture golf clubs are generally described herein. In one example, a golf club may include a club head coupled to a shaft. The club head may include a body portion having an interior cavity, a front portion, a rear portion, a toe portion, a heel portion, a bottom portion, a crown portion with an opening, a polymer insert in the interior cavity, and a non-metal cover portion coupled to the crown portion to cover the opening. Other examples and embodiments may be described and claimed.

Abstract: An aerodynamic golf club head producing reduced aerodynamic drag forces via the curvature of a crown section. At least a portion of the crown section may be composed of low density materials, including nonmetallic materials.

Abstract: A golf club head with a hollow therein includes a head main body and a crown member. The head main body includes a face portion having a hitting face, a crown portion provided with an opening and a peripheral region forming around the opening, wherein the opening is covered with the crown member. The peripheral region of the opening includes a mounting portion for mounting the crown member with an interior surface and an exterior surface thereof. The mounting portion, at least, includes a face-side mounting portion, a toe-side mounting portion and a heel-side mounting portion. The crown member includes a face-side peripheral portion fixed to the interior surface of the face-side mounting portion, a toe-side peripheral portion fixed to the exterior surface of the toe-side mounting portion and a heel-side peripheral portion fixed to the exterior surface of the heel-side mounting portion.

Abstract: An aerodynamic golf club head with a low center of gravity and producing reduced aerodynamic drag forces. The club head has crown section attributes that impart beneficial aerodynamic properties.

Abstract: A golf club head includes a strike face, a crown, and a sole, and is formed from a forward section and a body section that are coupled together. The forward section includes the strike face, and the body section includes an upper shell defining a portion of the crown, a lower shell defining a portion of the sole, and an internal wall extending between the upper shell and the lower shell. The internal wall is molded from a polymeric material and is integrally formed with one of the upper shell and the lower shell. At least one of the upper shell and the lower shell defines an opening that is in communication with a cavity provided between the upper shell and the lower shell and at least partially defined by the internal wall.

Abstract: A golf club head made out of multi-material is disclosed herein. More specifically, the golf club head in accordance with the present invention has at least a portion of the body of the golf club head that is further comprised out of a base layer and a lightweight cover layer. The base layer may have a plurality of cutouts to help reduce unnecessary mass and the lightweight cover layer may be made out of an ultra-lightweight material to further reduce the unnecessary mass. In alternative embodiments of the invention, the base layer may have one or more ribs to provide structural rigidity to the base layer.

Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency. A slot is included in a portion of the golf club head and works with the flexure to further tune performance.

Abstract: Embodiments of golf club heads with aerodynamic features and related methods are described herein. Various embodiments of the golf club heads with aerodynamic features and related methods include a golf club head comprising a body. In many embodiments, the body comprises a strikeface, a heel region, a toe region opposite the heel region, a sole, a crown, a trailing edge between the sole and the crown, a back opposite the strikeface, and one or more cavities located at least at one of: the back and in the sole adjacent to the trailing edge; or the back and in the trailing edge. Other examples and related methods are also disclosed herein.

Abstract: Embodiments of golf club heads with face deflection structures are described herein. Other examples and related methods are also disclosed herein.

Abstract: A golf club head made out of multi-material is disclosed herein. More specifically, the golf club head in accordance with the present invention has at least a portion of the body of the golf club head that is further comprised out of a base layer and a lightweight cover layer. The base layer may have a plurality of cutouts to help reduce unnecessary mass and the lightweight cover layer may be made out of an ultra-lightweight material to further reduce the unnecessary mass. The present invention achieves this without sacrificing the sound performance of the golf club head.

Abstract: A golf club head includes: a sole; a crown; a toe; a heel opposite the toe; a strike face generally bounded by a face perimeter edge, the strike face comprising a geometric center; a rear portion; and a substantially enclosed interior cavity at least partially delimited by the sole, the crown, the strike face, and the rear portion. The golf club head also includes at least one rib having a first portion secured to the strike face, having a second portion secured to the crown, and being positioned such that a location on the strike face laterally spaced toe-ward from the geometric center by no less than 0.4 in is associated with a COR value no less than 0.825.

Abstract: Embodiments of golf club heads with aerodynamic features and related methods are described herein. Various embodiments of the golf club heads with aerodynamic features and related methods include a golf club head comprising a body. In many embodiments, the body comprises a strikeface, a heel region, a toe region opposite the heel region, a sole, a crown, a trailing edge between the sole and the crown, a back opposite the strikeface, and one or more cavities located at least at one of: the back and in the sole adjacent to the trailing edge; or the back and in the trailing edge. Other examples and related methods are also disclosed herein.

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

Abstract: A high forgiveness wood-type golf club head comprises a body and a face. The body comprises a sole that forms a bottom portion of the golf club head, a crown that forms a top portion of the golf club head and a skirt that forms a periphery of the golf club head between the sole and the crown. The face place is positioned at a front portion of the golf club head opposite a rear portion of the golf club head. The body defines an outer periphery having a generally triangular shape in plan.

Abstract: Embodiments 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 hollow body portion having a front portion, a rear portion, a toe portion, a heel portion, a bottom portion, a top portion, a plurality of ports on the bottom portion and a plurality of inner support portions in the hollow body portion. Other examples and embodiments may be described and claimed.

Abstract: A golf club head includes a club body including a crown, a sole, a skirt disposed between and connecting the crown and the sole and a face portion connected to a front end of the club body. The face portion includes a geometric center defining the origin of a coordinate system when the golf club head is ideally positioned, the coordinate system including an x-axis being tangent to the face portion at the origin and parallel to a ground plane, a y-axis intersecting the origin being parallel to the ground plane and orthogonal to the x-axis, and a z-axis intersecting the origin being orthogonal to both the x-axis and the y-axis. The golf club head defines a center of gravity CG, the CG being a distance CGY from the origin as measured along the y-axis and a distance CGZ from the origin as measured along the z-axis.

Abstract: Embodiments 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 hollow body portion having a front portion, a rear portion, a toe portion, a heel portion, a bottom portion, a top portion with a crown portion having an opening, and a cover portion configured to couple to the crown portion to cover the opening. Other examples and embodiments may be described and claimed.

Abstract: Described herein is a golf club head that comprises a body and a face portion. The golf club head further comprises at least one stiffener, at least partially within the interior cavity and directly coupled to the face portion at a location with an x-axis coordinate, of a club head origin coordinate system of the golf club head, greater than 20 mm and less than 50 mm or greater than ?50 mm and less than ?20 mm.

Abstract: A set of golf clubs having a degree of adjustability to provide improved distance gapping across the transition from a curved face golf club head to a flat face golf club head.

Abstract: A golf club head made out of multi-material is disclosed herein. More specifically, the golf club head in accordance with the present invention has at least a portion of the body of the golf club head that is further comprised out of a base layer and a lightweight cover layer. The base layer may have a plurality of cutouts to help reduce unnecessary mass and the lightweight cover layer may be made out of an ultra-lightweight material to further reduce the unnecessary mass.

Abstract: Embodiments of golf club heads having transition profiles to reduce aerodynamic drag during a swing are described herein. In some embodiments, a golf club head includes a crown transition profile having a first crown radius of curvature, a sole transition profile having a first sole radius of curvature, and a rear transition profile having a rear radius of curvature.

Abstract: In one embodiment the golf club head includes three main components, a frame component, a rear cap component, and a striking plate. In another embodiment the club head may also comprise a front component, which is manufactured as a single unitary piece, and a rear cap component. The front component may also be overmolded by a thermoplastic polymeric outer portion which may or may not cover the striking face and which provides additional reinforcement at the load bearing sections of the club head and allows a more facile connection to the rear cap component. In another embodiment, a club head having a main body, crown insert, sole insert and metal face plate frame is formed by forming the sole insert and crown insert from a polymeric material using a thermoforming or thermosetting process and then injection molding the main body over the sole insert, crown insert and metal face plate frame.

Abstract: A golf club head comprising a body, an elevated weight bar, and at least one stiffening member is disclosed herein. The elevated weight bar is disposed within a hollow cavity portion of the body and bridges at least a portion of a bottom section of the body, and the at least one stiffening member is also disposed within the hollow cavity portion, extending from a top line section to bottom section of the body and passing through the elevated weight bar without making contact with the elevated weight bar. The elevated weight bar, which is preferably composed of a higher density material than that of the body, may be formed separately from the rest of the body and then affixed to the body by welding or a mechanical fastener.

Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.

Abstract: Methods are provided to produce new mechanoresponsive healing systems. Additionally, various embodiments provide a two tier self-healing material system concept that provides a non-intrusive method to mitigate impact damage in a structure ranging from low velocity impact damage (e.g., crack damage) to high velocity impact damage (e.g., ballistic damage.) The various embodiments provide the mechanophore linked polymer PBG-BCB-PBG. The various embodiments provide methods for synthesizing PBG-BCB-PBG.

Abstract: A golf club according to the present invention includes a golf club head body that has a crown portion and a sole portion and has an opening surrounded by the crown portion and the sole portion, and a face member that covers the opening of the golf club head body. The face member is formed in the shape of a cup having a face portion formed in a plate shape and a peripheral portion that extends from the peripheral edge of the face portion. In the peripheral portion of the face member, the portion that extends along the crown portion includes a first toe-side edge portion arranged on the toe side, a first heel-side edge portion arranged on the heel side, and a first central edge portion arranged between the first toe-side edge portion and the first heel-side edge portion.

Abstract: Embodiments of golf club heads and methods to manufacture golf club heads are generally described herein. In one example, the method of manufacturing a golf club head may include providing a body portion and providing a plurality of weight portions. The body portion may include a front portion, a rear portion, a toe portion, a heel portion, a top portion, a bottom portion having an outer surface associated with an outer surface curve, and a weight port region located at or proximate to the bottom portion. Other examples and embodiments may be described and claimed.

Abstract: A composite material integrally forged iron head of a golf club includes a head body, a weight part and a cover. The head body has an engaging recess formed inside. The weight part is mounted in the engaging recess and the material of the weight part is composite ceramics and has a density of 1.3 to 3.5 g/cc. The cover is welded on the engaging recess of the head body, and the weight part is sealed by the head body and the cover without any gap. The integrally forged iron head has a lower density in the center and a higher density in the surrounding area, which increases the error tolerance and enlarges the sweet-spot area, and also improves the sound and feel of striking.

Abstract: A golf club and golf club head having a high static loft angle, low forward center of gravity, and enhanced z-axis gear effect via a large roll radius and/or tightly controlled moment of inertia about the CG x-axis, Ixx, associated with upward and downward twisting of the club head.

Abstract: Embodiments 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 hollow body portion having a front portion, a rear portion, a toe portion, a heel portion, a bottom portion, a top portion, a plurality of ports on the bottom portion and a plurality of inner support portions in the hollow body portion. Other examples and embodiments may be described and claimed.

Abstract: Embodiments of golf club heads comprising a head interior and a hosel structure, the head interior bounded by a head front portion, a head rear portion, a head heel portion, a head toe portion, a head top portion, and a head sole portion, the golf club heads further comprising various optimized characteristics, are presented herein. Other examples and related methods are also disclosed herein.

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: A golf club head having a flexible channel to improve the performance of the club head, and a channel tuning system to reduce undesirable club head characteristics introduced, or heightened, via the flexible channel. The channel tuning system includes a sole engaging channel tuning element in contact with the sole and the channel. The club head may include an aerodynamic configuration, as well as a body tuning system.

Abstract: To provide a golf club head excellent in hitting sound and flight distance performance. A head includes a face, a crown and a sole. The crown has an inner surface on which grid-form rib is provided. When a region on which the grid-form rib is provided is defined as a rib region, an additional rib is further provided on the rib region. The additional rib is positioned on a heel side relative to a face center. Preferably, the grid-form rib is formed by intersection of first ribs extending in a substantially toe-heel direction and second ribs extending in a substantially face-back direction. Preferably, the additional rib is sloped to be closer to a back side as approaching to the heel side.

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 have a high moment of inertia and variable thickness face.

Abstract: Embodiments 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 top portion, a sole portion, a back portion, a front portion having a face portion with a front surface and a back surface, an interior cavity extending between the top and sole portions and between the face and back portions, and an elastic polymer material in the interior cavity, and a bonding portion. Other examples and embodiments may be described and claimed.

Abstract: A ball striking device, such as a golf club head, includes a face having a ball striking surface, an inner surface opposite the ball striking surface, and a thickness defined between the ball striking surface and the inner surface, and a body connected to the face and extending rearward from the face. The face has a modulus gradient across the thickness of the face, such that the modulus of the face varies at different distances from the ball striking surface. The face may also include at least one of an insert, a composite material, a multi-layered structure, and/or a portion treated by a surface treatment to contribute to the modulus gradient.

Abstract: A planetary multi-speed transmission with a housing is proposed for a vehicle. A first shaft is provided as a drive and a second shaft is provided as an output, axially parallel to the drive. Three planetary gear sets and additional shafts, along with six shifting elements, are provided, through which the actuation of several gears can be realized. Machine elements are provided for the transfer of torque between the drive and the output. The first shaft is connectable, as the drive, to the sun gear of the second planetary gear set, to the sun gear of the first planetary gear set, to the planetary gear carrier of the second planetary gear set, to the planetary gear carrier of the first planetary gear set, and to the first machine element. The second shaft is connected or connectable, as a drive, to the first machine element and to the second machine element.

Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball. The flexure is tuned to vibrate, immediately after impact, at a predetermined frequency.

Abstract: A wood-type golf club head includes a main body and a striking wall associated with the main body. The striking wall has a striking face including a face center, a first imaginary plane tangent to the face center, and a rear surface opposite the striking face. In a second imaginary plane perpendicular to the first imaginary plane and passing through the face center, the striking face includes a first point associated with a maximum thickness, tmax, of the striking wall, and a second point associated with a minimum thickness, tmin, of the striking wall, such that a ratio, tmax/tmin, is no less than 1.70. Also, in the second imaginary plane, the striking wall gradually tapers in thickness entirely from the first point to the second point.

Abstract: An exemplary golf club head having an increased amount of discretionary mass may be realized by utilizing improved drop angles, an improved average crown height, and/or articulation points. The discretionary mass may be placed low and deep in the club head to improve the location of the center of gravity as well as the inertial properties. A preferred break length may also be utilized to further improve the depth of the center of gravity. In one example, the center of gravity may be positioned to substantially align the sweet spot with the face center of the club head.

Abstract: Embodiments 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 top portion, a sole portion, a back portion, and a front portion having a face portion. The golf club head may include an interior cavity. The interior cavity is at least partially filled with an elastic polymer material. A bonding portion bonds the elastic polymer material to the face portion. Other examples and embodiments may be described and claimed.