# US 11,110,330 B2 · 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 11,110,330 B2 - Document ID: US11110330B2 - Status: Granted - Kind: B2 - Application number: 16/739,196 - Filed: 2020-01-10 - Published: 2020-05-14 - Granted: 2021-09-07 - Earliest claimed: 2016-09-30 - Assignees: Sumitomo Rubber Industries, Ltd. - Applicants: Sumitomo Rubber Industries, Ltd. - Inventors: Patrick Ripp; Brian Herr; Mika Becktor; Keith Dolezel - Web page: https://patentgrep.com/patent/US11110330B2 ## CPC - A63B 53/047: {iron-type} - A63B 53/02: Joint structures between the head and the shaft - A63B 53/04: Heads - A63B 60/00: Details or accessories of golf clubs, bats, rackets or the like - A63B 53/0408: {characterised by specific dimensions, e.g. thickness} - A63B 53/0412: {Volume} - A63B 53/0433: {with special sole configurations} - A63B 53/0445: {Details of grooves or the like on the impact surface} - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A golf club head includes a striking face having a face center and a virtual striking face plane generally parallel to the striking face. The golf club head further includes a sole portion, a top portion, a rear portion, and a loft L no less than 40°. A virtual vertical plane perpendicular to the striking face plane passes through the face center. A club head center of gravity is spaced from the virtual vertical plane in the heel-to-toe direction by a distance D1 that is no greater than 6.0 mm. The golf club head further includes a hosel including an internal bore configured to receive a golf shaft. The internal bore includes a peripheral side wall and a shaft abutment surface configured to abut a tip end of the golf club shaft. The hosel further comprises an auxiliary recess extending sole-ward from the abutment surface of the internal bore. ## Claims ### Claim 1 A golf club head that, when oriented in a reference position, comprises: a striking face having a face center, a leading edge, and a virtual striking face plane generally parallel to the striking face; a sole portion having a sole width D8 that is between 14 mm and 20 mm; a top portion; a rear portion; a loft L no less than 40°; a virtual vertical plane perpendicular to the striking face plane and passing through the face center; a club head center of gravity spaced from the virtual vertical plane in a heel-to-toe direction by a distance D1 that is no greater than 6.0 mm; and a hosel comprising a virtual hosel axis and an internal bore configured to receive a golf club shaft, the internal bore including a peripheral side wall and a shaft abutment surface configured to abut a tip end of the golf club shaft, the hosel further comprising an auxiliary recess (i) extending sole-ward from the abutment surface of the internal bore and (ii) tapering in width in a sole-ward direction, wherein the club head comprises a blade-type golf club head comprising an upper blade portion having a substantially uniform thickness and a lower muscle portion. ### Claim 2 (depends on 1) The golf club head of claim 1, wherein the auxiliary recess comprises a depth, measured in a direction of the hosel axis, of no less than 5 mm. ### Claim 3 (depends on 1) The golf club head of claim 1, wherein the distance D1 is no greater than 5.0 mm. ### Claim 4 (depends on 1) The golf club head of claim 1, further comprising a point P1 located at an intersection of the leading edge and the virtual vertical plane, wherein the center of gravity is vertically spaced from the point P1 by a distance D3 such that: D3≥29.5 mm)−(0.3 mm/°)×L. ### Claim 5 (depends on 1) The golf club head of claim 1, wherein the auxiliary recess is at least partially filled. ### Claim 6 (depends on 1) The golf club head of claim 1, wherein the hosel has a hosel upper end, and a distance D4, measured from the hosel upper end to a virtual ground plane along the virtual hosel axis, is no greater than 75 mm. ### Claim 7 (depends on 1) The golf club head of claim 1, further comprising a maximum top line thickness D5 no greater than 5.70 mm. ### Claim 8 A golf club head that, when oriented in a reference position, comprises: a striking face having a face center, a leading edge, and a virtual striking face plane generally parallel to the striking face; a sole portion; a top portion; a rear portion; a loft L no less than 40°; a virtual vertical plane perpendicular to the striking face plane and passing through the face center; a club head center of gravity spaced from the virtual vertical plane in a heel-to-toe direction by a distance D1 that is no greater than 6.0 mm; a hosel comprising a virtual hosel axis and an internal bore configured to receive a golf club shaft, the internal bore including a peripheral side wall and a shaft abutment surface configured to abut a tip end of the golf club shaft, the hosel further comprising an auxiliary recess extending sole-ward from the abutment surface of the internal bore; and a point P1 located at an intersection of the leading edge and the virtual vertical plane, wherein the center of gravity is vertically spaced from the point P1 by a distance D3 that is no greater than 17 mm, wherein the club head comprises a blade-type golf club head comprising an upper blade portion having a substantially uniform thickness and a lower muscle portion. ### Claim 9 (depends on 8) The golf club head of claim 8, wherein the sole portion further comprises a sole width D8 that is between 14 mm and 20 mm. ### Claim 10 (depends on 8) The golf club head of claim 8, wherein the auxiliary recess comprises a depth, measured in a direction of the hosel axis, of no less than 5 mm. ### Claim 11 (depends on 8) The golf club head of claim 8, wherein the distance D1 is no greater than 5.0 mm. ### Claim 12 (depends on 8) The golf club head of claim 8, wherein: D3≥29.5 mm)−(0.3 mm/°)×L. ### Claim 13 (depends on 8) The golf club head of claim 8, wherein: the hosel has a hosel upper end; and a distance D4, measured from the hosel upper end to a virtual ground plane along the virtual hosel axis, is no greater than 75 mm. ### Claim 14 (depends on 8) The golf club head of claim 8, further comprising a maximum top line thickness D5 no greater than 5.70 mm. ### Claim 15 A golf club head that, when oriented in a reference position, comprises: a striking face having a face center, a leading edge, and a virtual striking face plane generally parallel to the striking face; a sole portion; a top portion; a rear portion; a loft L no less than 40°; a virtual vertical plane perpendicular to the striking face plane and passing through the face center; a club head center of gravity spaced from the virtual vertical plane in a heel-to-toe direction by a distance D1 that is no greater than 6.0 mm; and a hosel comprising a virtual hosel axis and an internal bore configured to receive a golf club shaft, the internal bore including a peripheral side wall and a shaft abutment surface configured to abut a tip end of the golf club shaft, the hosel further comprising an auxiliary recess extending sole-ward from the abutment surface of the internal bore, the auxiliary recess tapering in width in a sole-ward direction, wherein the club head comprises a blade-type golf club head comprising an upper blade portion having a substantially uniform thickness and a lower muscle portion. ### Claim 16 (depends on 15) The golf club head of claim 15, wherein the auxiliary recess comprises a depth, measured in a direction of the hosel axis, of no less than 5 mm. ### Claim 17 (depends on 15) The golf club head of claim 15, wherein the distance D1 is no greater than 5.0 mm. ### Claim 18 (depends on 15) The golf club head of claim 15, further comprising a point P1 located at an intersection of the leading edge and the virtual vertical plane, wherein the center of gravity is vertically spaced from the point P1 by a distance D3 such that: D3≥29.5 mm)−(0.3 mm/°)×L, wherein: D3≥29.5 mm)−(0.3 mm/°)×L. ### Claim 19 (depends on 15) The golf club head of claim 15, wherein: the hosel has a hosel upper end; and a distance D4, measured from the hosel upper end to a virtual ground plane along the virtual hosel axis, is no greater than 75 mm. ### Claim 20 (depends on 15) The golf club head of claim 15, further comprising a maximum top line thickness D5 no greater than 5.70 mm.