Golf club head faceplates with lattices

Abstract

Embodiments of golf club head faceplates comprising a lattice to improve the energy storage capabilities and minimize stress concentrations are described herein. The lattice can comprise a plurality of flexure shapes that facilitate in faceplate bending. The flexure shapes of the lattice can comprise a reentrant, concave, or non-convex shape. The lattice can comprise at least one repeating pattern of flexure shapes that can be interconnected or spaced apart. During golf ball impacts, the flexure shapes flex to store energy through linear and torsional bending.

What is claimed is: 
     
         1 . A golf club head, comprising:
 a faceplate comprising a lattice, the lattice comprises a plurality of land portions that form a plurality of Evan flexure shape recesses,   wherein:   each of the plurality of Evan flexure shape recesses comprises an Evan shape having at least four vertices each defining an acute interior angle, and a first vertex defining a first reflex angle;   the first reflex angle does not define an acute interior angle;   each of the plurality of even Evan flexure shape recesses defines a depth from 0.025 inch to 0.075 inch; and   each of the plurality of Evan flexure shape recesses has a bow tie shape.   
     
     
         2 . The golf club head of  claim 1 , wherein the first reflex angle is greater than 180 degrees and less than 360 degrees. 
     
     
         3 . The golf club head of  claim 1 , wherein the plurality of Evan flexure shape recesses are positioned on a faceplate region selected from the group consisting of a center region, a toe region, a heel region, a top region, a bottom region, a high-toe region, a low-toe region, a high-heel region, and a low-heel region. 
     
     
         4 . The golf club head of  claim 1 , wherein each of the plurality of Evan flexure shape recesses further comprises a second vertex defining a second reflex angle. 
     
     
         5 . The golf club head of  claim 4 , wherein the second vertex does not define an acute interior angle. 
     
     
         6 . The golf club head of  claim 5 , wherein a width of each-of the plurality of Evan flexure shape recesses is greater between opposite acute interior angle vertices than between opposite reflex angle vertices. 
     
     
         7 . The golf club head of  claim 5 , wherein a width of each of the plurality of land portions located between two adjacent Evan flexure shape recesses is greater between reflex angle vertices of the two adjacent Evan flexure shape recesses than between acute interior angle vertices of the two adjacent Evan flexure shape recesses. 
     
     
         8 . A golf club head comprising:
 a faceplate comprising a lattice, the lattice comprises a plurality of land portions that form a plurality of Evan flexure shape recesses;   wherein:   each of the plurality of Evan flexure shape recesses defines a depth from 0.025 inch to 0.075 inch; and   each of the plurality of Evan flexure shape recesses comprises an Evan shape having at least four vertices each defining an acute interior angle, and at least two vertices each defining a reflex interior angle.   
     
     
         9 . The golf club head of  claim 8 , wherein the reflex interior angles defined by the at least two vertices are greater than 180 degrees and less than 360 degrees. 
     
     
         10 . The golf club head of  claim 8 , wherein the plurality of-Evan flexure shape recesses are positioned on a faceplate region selected from the group consisting of a center region, a toe region, a heel region, a top region, a bottom region, a high-toe region, a low-toe region, a high-heel region, and a low-heel region. 
     
     
         11 . The golf club head of  claim 9 , wherein a minimum width of each of the plurality of Evan flexure shape recesses is measured across the reflex interior angles defined by the at least two vertices. 
     
     
         12 . The golf club head of  claim 9 , wherein a width of each of the plurality of Evan flexure shape recesses is greater between opposite acute interior angle vertices than between opposite reflex angle vertices. 
     
     
         13 . The golf club head of  claim 8 , wherein each of the plurality of Evan flexure shape recesses has a bow tie shape. 
     
     
         14 . The golf club head of  claim 9 , wherein a width of each of the plurality of land portions located between two adjacent Evan flexure shape recesses is greater between reflex angle vertices of the two adjacent Evan flexure shape recesses than between acute interior angle vertices of the two adjacent Evan flexure shape recesses.