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Golf club head having stiffening members and variable face thickness

  • US 10,406,408 B1
  • Filed: 01/12/2018
  • Issued: 09/10/2019
  • Est. Priority Date: 06/27/2012
  • Status: Active Grant
First Claim
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1. A golf club head comprising:

  • a body comprising a front wall having a front opening, a sole section extending from a lower edge of the front wall, a return section extending from an upper edge of the front wall, an upper opening, and an aft end opposite the front wall, the return section disposed between the front wall and the upper opening;

    a crown section affixed to the body to close the upper opening and define a hollow body interior;

    a striking plate insert affixed to the body to close the front opening, the striking plate insert comprising an interior surface facing the hollow interior, a geometric center, a face boundary, a central thickness region having a first thickness, a first intermediate thickness region having a second thickness, and a second intermediate thickness region having a third thickness; and

    at least one stiffening member disposed within the hollow body interior and extending from the return section to the sole section,wherein the central thickness region is defined as an area of the striking plate insert located between the geometric center and 25% of a radial distance from the geometric center to the face boundary,wherein the first intermediate thickness region is defined as an area of the striking plate insert located between 26% and 59% of a radial distance from the geometric center to the face boundary,wherein the second intermediate thickness region is defined as an area of the striking plate insert located between 60% and 90% of a radial distance from the geometric center to the face boundary,wherein the third thickness is greater than the first thickness and the second thickness,wherein no portion of the at least one stiffening member is spaced further than 0.500 inch from the interior surface along a vertical plane extending perpendicular to the striking plate insert,wherein no portion of the at least one stiffening member makes contact with the striking plate insert during impact with a golf ball,wherein the at least one stiffening member reduces stress placed on the striking plate insert during impact with a golf ball,wherein the golf club head has a volume of 200 cubic centimeters to 470 cubic centimeters,wherein the golf club head has a coefficient of restitution ranging from 0.82 to 0.89, andwherein the golf club head has a characteristic time of less than 257 μ

    s.

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