# US 2022/0032136 A1 · Golf club head > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0032136 A1 - Document ID: US20220032136A1 - Status: Published application - Kind: A1 - Application number: 17/403,516 - Filed: 2021-08-16 - Published: 2022-02-03 - Earliest claimed: 2019-08-28 - Assignees: Taylor Made Golf Company, Inc. - Applicants: Taylor Made Golf Company, Inc - Inventors: Joseph H. Hoffman; Chris Rollins - Web page: https://patentgrep.com/patent/US20220032136A1 ## CPC - A63B 53/0466: {wood-type} - A63B 60/02: Ballast means for adjusting the centre of mass (A63B60/24, A63B60/54 take precedence) - A63B 53/00: Golf clubs - A63B 53/02: Joint structures between the head and the shaft - A63B 53/021: {the shaft axis being forwardly offset relative to the striking face of the head} - A63B 53/04: Heads - A63B 53/0408: {characterised by specific dimensions, e.g. thickness} - A63B 53/0412: {Volume} - A63B 53/0433: {with special sole configurations} - A63B 60/50: with through-holes (A63B60/18 takes precedence; for stringing purposes A63B49/00) - A63B 60/52: with slits - A63B 2053/0491: {with added weights, e.g. changeable, replaceable} - A63B 2209/00: Characteristics of used materials - A63B 2209/02: with reinforcing fibres, e.g. carbon, polyamide fibres - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract Disclosed herein is a golf club head that comprises a body. The body comprises a sole portion, a crown portion, a skirt portion, and a face portion, positioned at a forward region of the golf club head, opposite a rearward region of the golf club head, and extending from a toe region to a heel region of the golf club head. At least a portion of the body is made of a titanium alloy. The golf club head also comprises a large weight, coupled to the sole portion of the body and made of a steel alloy. A mass of the large weight is at least 40% of a mass of the portion of the body made of the titanium alloy. A total mass of the large weight and the portion of the body made of the titanium alloy is at least 210 grams. ## Claims ### Claim at position 1 1-117. (canceled) ### Claim 118 A golf club, comprising: a golf club shaft comprising a butt end and a tip end; a golf club head comprising a body, defining an interior cavity of the golf club head, and further comprising a sole defining a bottom portion of the golf club head, a crown defining a top portion of the golf club head, a skirt portion defining a periphery of the golf club head between the sole and the crown, a face defining a forward portion of the golf club head, and a hosel defining a hosel bore, wherein the body further comprises a shaft attachment port positioned in the sole and extending into the interior cavity, the shaft attachment port having a port width, the shaft attachment port being located proximate a bottom end of the hosel such that a passage in the bottom end of the hosel provides communication between the hosel bore and the shaft attachment port; a sleeve mounted on the tip end of the golf club shaft and adapted to be inserted into the hosel bore; and a fastener having a head portion and a shaft portion, wherein the shaft portion of the fastener extends through the passage, the fastener being selectively attachable to the sleeve when the sleeve is inserted into the hosel bore, wherein: the golf club head further comprises a large weight, attached to the body, wherein the body is made of at least a first material having a first material density of no more than 8 g/cc, the large weight is made of a second material having a second material density of no less than 7 g/cc, and the first material density is less than the second material density; a ratio of the second material density to the first material density is at least 1.70, inclusive; at least 60%, inclusive, of a total mass of the large weight is forward of a theoretical forward-rearward midplane of the golf club head that extends parallel to an x-axis of a golf club head origin coordinate system of the golf club head at a midpoint between a forwardmost point of the golf club head and a rearwardmost point of the golf club head; the body comprises a weight mating recess, configured to receive at least a portion of the large weight; the large weight has a thickness that varies; the large weight has a volume of at least 3 cubic centimeters, inclusive; the large weight defines a portion of a sole of the golf club head; and the large weight defines at least 6 square centimeters of a surface area of the sole. ### Claim 119 (depends on 118) The golf club according to claim 118, wherein at least a portion of the large weight is located within a 25 mm radius of the shaft attachment port. ### Claim 120 (depends on 118) The golf club according to claim 118, wherein the large weight has a thickness that varies. ### Claim 121 (depends on 118) The golf club according to claim 118, wherein: the first material comprises at least one of a plastic, aluminum alloy, titanium alloy, or a steel alloy; the second material comprises one of a steel alloy or a tungsten alloy; and the crown portion of the body is at least partially made of a fiber-reinforced polymer having a density between 1 gram/cc (g/cc) and 2 g/cc, inclusive. ### Claim 122 A golf club head, comprising: a body, comprising a face portion and defining an interior cavity and a hosel defining a hosel bore; and a large weight, attached to the body, wherein the body is made of at least a first material having a first material density of no more than 8 g/cc, the large weight is made of a second material having a second material density of no less than 7 g/cc, and the first material density is less than the second material density; wherein: a ratio of the second material density to the first material density is at least 1.70, inclusive; at least 60%, inclusive, of a total mass of the large weight is forward of a theoretical forward-rearward midplane of the golf club head that extends parallel to an x-axis of a golf club head origin coordinate system of the golf club head at a midpoint between a forwardmost point of the golf club head and a rearwardmost point of the golf club head; the body comprises a weight mating recess, configured to receive at least a portion of the large weight; the large weight has a volume of at least 3 cubic centimeters, inclusive; the large weight defines a portion of a sole of the golf club head; and the large weight defines at least 6 square centimeters of a surface area of the sole. ### Claim 123 (depends on 122) The golf club head according to claim 122, wherein the large weight has a thickness that varies. ### Claim 124 (depends on 122) The golf club head according to claim 122, wherein: the first material is one of a plastic, aluminum alloy, titanium alloy or a steel alloy; the second material is one of a steel alloy or a tungsten alloy; and a crown portion of the body is at least partially made of a fiber-reinforced polymer having a density between 1 gram/cc (g/cc) and 2 g/cc, inclusive. ### Claim 125 (depends on 122) The golf club head according to claim 122, wherein a mass of the large weight is at least 40% of a mass of the portion of the body made of the first material. ### Claim 126 (depends on 122) The golf club head according to claim 122, wherein the large weight is fixed to the body by at least one of an adhesive and a fastener. ### Claim 127 (depends on 122) The golf club head according to claim 122, further comprising an adjustable lie/loft assembly coupled to the body. ### Claim 128 (depends on 122) The golf club head according to claim 122, wherein the body further comprises a shaft attachment port positioned in the sole and extending into the interior cavity, the shaft attachment port having a port width, the shaft attachment port being located proximate a bottom end of the hosel such that a passage in the bottom end of the hosel provides communication between the hosel bore and the shaft attachment port. ### Claim 129 (depends on 128) The golf club head according to claim 128, wherein at least a portion of the large weight is located within a 25 mm radius of the shaft attachment port. ### Claim 130 (depends on 122) The golf club head according to claim 122, wherein: the first material is one of a plastic, aluminum alloy, titanium alloy or a steel alloy; the second material is one of a steel alloy or a tungsten alloy; a crown portion of the body is at least partially made of a fiber-reinforced polymer having a density between 1 gram/cc (g/cc) and 2 g/cc, inclusive; and the face portion of the body is at least partially made of a fiber-reinforced polymer having a density between 1 g/cc and 2 g/cc, inclusive. ### Claim 131 (depends on 122) The golf club head according to claim 122, wherein: at least a portion of the body toeward of the large weight is formed of a material that has a density that is lower than the second material density of the large weight; and at least a portion of the body heelward of the large weight is formed of a material that has a density that is lower than the second material density of the large weight. ### Claim 133 (depends on 122) The golf club according to claim 122, wherein the large weight is non-circular. ### Claim 134 (depends on 122) The golf club according to claim 122, wherein the large weight is bonded to the body via an adhesive. ### Claim 135 A golf club head, comprising: a crown portion, positioned at a top region of the golf club head, a sole portion, positioned at a bottom region of the golf club head, a skirt portion, positioned around a periphery of the golf club head between the sole portion and the crown portion, and a face portion, positioned at a forward region of the golf club head, opposite a rearward region of the golf club head, and extending from a toe region to a heel region of the golf club head and defining an interior cavity and a hosel defining a hosel bore, wherein: the golf club head is made of at least a first material having a first material density of no more than 8 g/cc, and made of a second material having a second material density of no less than 7 g/cc, and the first material density is less than the second material density; the crown portion and the face portion are at least partially made of a third material, different than the first and second materials; the third material is a fiber-reinforced polymer having a density between 1 gram/cc (g/cc) and 2 g/cc, inclusive; and a mass of the golf club head made of the second material is at least 40% of the mass of the golf club head made of the first material. ### Claim 136 (depends on 135) The golf club head according to claim 135, wherein: at least a portion of the body toeward of the large weight is formed of a material that has a density that is lower than the second material density of the large weight; and at least a portion of the body heelward of the large weight is formed of a material that has a density that is lower than the second material density of the large weight. ### Claim 137 (depends on 135) The golf club head according to claim 135, wherein: at least a portion of the sole portion comprises a toeward edge, extending to a first rearwardmost point of the sole, and a heelward edge, extending to a second rearwardmost point of the sole; the toeward edge is substantially linear and the heelward edge is substantially linear; and a first hypothetical line, collinear with the toeward edge, converges with a second hypothetical line, collinear with the heelward edge, at a location rearward of a rearwardmost point of the golf club head. ### Claim 138 (depends on 135) The golf club according to claim 135, wherein: the golf club head further comprises a slot formed in the sole; the slot has a length, defined in a heel-to-toe direction; the large weight has a width, defined in the heel-to-toe direction; and the width of the large weight is greater than the length of the slot. ### Claim 139 (depends on 135) The golf club according to claim 135, wherein at least a portion of the golf club head comprises aluminum and a mass percentage of aluminum in the body is less than 7%.