# US 10,369,431 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 10,369,431 B2 - Document ID: US10369431B2 - Status: Granted - Kind: B2 - Application number: 15/299,890 - Filed: 2016-10-21 - Published: 2017-04-27 - Granted: 2019-08-06 - Earliest claimed: 2015-10-23 - Assignees: Sumitomo Rubber Industries, Ltd. - Applicants: Dunlop Sports Co. Ltd. - Inventors: Takashi Nakamura; Daisuke Kohno - Web page: https://patentgrep.com/patent/US10369431B2 ## CPC - A63B 53/047: {iron-type} - A63B 53/0408: {characterised by specific dimensions, e.g. thickness} - A63B 53/0416: {Heads having an impact surface provided by a face insert} - A63B 53/0433: {with special sole configurations} - A63B 53/0458: {with non-uniform thickness of the impact face plate} - A63B 2053/0491: {with added weights, e.g. changeable, replaceable} - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A head includes a head body and a face plate fixed to the head body. The face plate includes a plate front surface, a plate back surface, and a plate side surface. The plate back surface includes a center of figure. The head body includes a receiving surface which supports the plate back surface from rear. An outer peripheral edge part of the plate back surface includes a projection part which abuts on the receiving surface. If a toe-side region, a top-side region, and a sole-side region of the projection part are defined as a first section, and a heel-side region of the projection part is defined as a second section, then a width of the projection part is varied in the first section. ## Claims ### Claim 1 A golf club head comprising: a head body; and a face plate fixed to the head body, wherein: the face plate includes a plate front surface having a hitting face, a plate back surface which is a surface opposite to the plate front surface, and a plate side surface; the plate back surface includes a center of figure; the head body includes a receiving surface which supports the plate back surface from a rear; an outer peripheral edge part of the plate back surface includes a projection part which abuts on the receiving surface; the head body further includes: a body side surface that is opposed to the plate side surface, and the body side surface is provided over a whole circumference of the face plate; and a plastic deforming part, wherein a peripheral part of the plate front surface includes a level difference surface that is located at a rear with respect to the hitting face, and the plastic deforming part is located at a front of the level difference surface, wherein a plate thickness of the projection part is greater than a plate thickness of an inner side part that is located on an inner side of the outer peripheral edge part, and wherein a toe-side region, a top-side region, and a sole-side region of the projection part are defined as a first section, and a heel-side region of the projection part is defined as a second section, and wherein a width of the projection part is varied in the first section. ### Claim 2 (depends on 1) The golf club head according to claim 1, wherein the width of the projection part is varied in the sole-side region. ### Claim 3 (depends on 1) The golf club head according to claim 1, wherein: the projection part includes a center disposing part located so as to include the toe-heel direction position of the center of figure, a heel disposing part located on a heel side with respect to the center of figure, and a toe disposing part located on a toe side with respect to the center of figure; a width of the center disposing part is greater than a width of the heel disposing part; and the width of the center disposing part is greater than a width of the toe disposing part. ### Claim 4 (depends on 3) The golf club head according to claim 3, wherein a width of the center disposing part is equal to or greater than 1 mm but equal to or less than 8 mm. ### Claim 5 (depends on 3) The golf club head according to claim 3, wherein a width of the heel disposing part and the toe disposing part are equal to or greater than 0.5 mm but equal to or less than 5 mm. ### Claim 6 (depends on 3) The golf club head according to claim 3, wherein the center disposing part, the heel disposing part and the toe disposing part are located in the sole-side region. ### Claim 7 (depends on 1) The golf club head according to claim 1, wherein an average width of the projection part in the sole-side region is different from an average width of the projection part in the top-side region. ### Claim 8 (depends on 1) The golf club head according to claim 1, wherein an average width of the projection part in the sole-side region is smaller than an average width of the projection part in the top-side region. ### Claim 9 (depends on 8) The golf club head according to claim 8, wherein the average width of the projection part in the sole-side region is equal to or greater than 0.5 mm but equal to or less than 6 mm. ### Claim 10 (depends on 8) The golf club head according to claim 8, wherein the average width of the projection part in the top-side region is equal to or greater than 1 mm but equal to or less than 8 mm. ### Claim 11 (depends on 1) The golf club head according to claim 1, wherein an average width of the projection part in the heel-side region is smaller than an average width of the projection part in the toe-side region. ### Claim 12 (depends on 1) The golf club head according to claim 1, wherein the golf club head satisfies the following (a) and/or (b): (a) a width of the projection part in the heel-side region is varied, and a portion of which the width is minimal is located below the center of figure, (b) a width of the projection part in the toe-side region is varied, and a portion of which the width is minimal is located below the center of figure. ### Claim 13 (depends on 1) The golf club head according to claim 1, wherein an average width of the projection part in the first section is greater than an average width of the projection part in the second section.