Golf club head with improved striking face

Patent metadata

Field	Value
Publication number	US-12533557-B2
Application number	US-202217941418-A
Country	US
Kind code	B2
Filing date	Sep 9, 2022
Priority date	Sep 9, 2021
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

A golf club head with improved striking face is disclosed. More specifically, the present invention relates to a golf club head wherein the striking face is further comprised out of a thickened central region, located near a geometric center of the striking face portion, a central transition region extending outward radially from the thickened central region, a thinned intermediate region, extending outward radially from the central transition region, a thickened stress reducing region, extending outward radially from the thinned intermediate region, and a thinned perimeter region, extending outward radially from the thickened stress reducing region, all of which combine to form the improved striking face.

First claim

What is claimed is:

1 . A golf club head comprising:
a striking face portion, located at a frontal portion of said golf club head, adapted to impact a golf ball; and a body portion, attached to a rear of said striking face portion, wherein said striking face portion further comprises;
a frontal striking surface, wherein said frontal striking surface is substantially planar, and
an internal rear surface,
wherein said frontal striking surface and said internal rear surface combine to further comprises;
a thickened central region, located near a geometric center of said striking face portion, having a first thickness,
 said first thickness measures a thickness of said striking face portion between said frontal striking surface and said internal rear surface,
a central transition region, extending outward radially from said thickened central region, having a variable thickness,
 said variable thickness measures a thickness of said striking face portion between said frontal striking surface and said internal rear surface,
a thinned intermediate region, extending outward radially from said central transition region, having a third thickness,
 said third thickness measures a thickness of said striking face portion between said frontal striking surface and said internal rear surface,
a thickened stress reducing region, extending outward radially from said thinned intermediate region, having a fourth thickness,
said fourth thickness measures a thickness of said striking face portion between said frontal striking surface and said internal rear surface, and
a thinned perimeter region, extending outward radially from said thickened stress reducing region, having a fifth thickness,

wherein said thickened stress reducing region forms at least a portion of a ring protruding rearward from said internal rear surface of said striking face portion, and wherein said fourth thickness is greater than said thickness.

2 . The golf club head of claim 1 , wherein said thickened stress reducing region only partially encircles said thinned intermediate region.

3 . The golf club head of claim 2 , wherein said thickened stress reducing region further comprises;
an upper thickened stress reducing region, and a lower thickened stress reducing region, wherein said fourth thickness of both said upper thickened stress reducing region and said lower thickened stress reducing region is a thickest portion of said striking face portion.

4 . The golf club head of claim 3 , wherein both said upper thickened stress reducing region and said lower thickened stress reducing region have a T over H ratio of between about 0.6 to 1.1, said T over H ratio defined as:

T
⁢

over
⁢

H
⁢

Ratio

=

Thickness
⁢

T
⁢
4
⁢

of
⁢

Thickened
⁢

Stress
⁢

Reducing
⁢

Region

Height
⁢

H
⁢
4
⁢

of
⁢

Thickened
⁢

Stress
⁢

Reducing
⁢

Region

.

wherein said height H4 measures the height of the Stress Reducing Region from said intermediate region and said thinned perimeter region.

5 . The golf club head of claim 4 , wherein said T over H ratio is between about 0.7 to about 0.9.

6 . The golf club head of claim 5 , wherein said T over H ratio is about 0.8.

7 . The golf club head of claim 3 , wherein said upper thickened stress reducing region and said lower thickened stress reducing region has a same height.

8 . The golf club head of claim 3 , wherein said upper thickened stress reducing region and said lower thickened stress reducing region has a different height.

9 . The golf club head of claim 8 , wherein a height of said upper thickened stress reducing region is smaller than a height of said lower thickened stress reducing region.

10 . The golf club head of claim 9 , wherein said height of said upper thickened stress reducing region is about 0.5 mm smaller than said height of said lower thickened stress reducing region.

11 . A golf club head comprising:
a striking face portion, located at a frontal portion of said golf club head, adapted to impact a golf ball; and a body portion, attached to a rear of said striking face portion, wherein said striking face portion further comprises;
a frontal striking surface, wherein said frontal striking surface is substantially planar, and
an internal rear surface,
wherein said frontal striking surface and said internal rear surface combine to further comprises;
a thickened central region, located near a geometric center of said striking face portion, having a first thickness,
 said first thickness measures a thickness of said striking face portion between said frontal striking surface and said internal rear surface,
a central transition region, extending outward radially from said thickened central region, having a variable thickness,
 said variable thickness measures a thickness of said striking face portion between said frontal striking surface and said internal rear surface,
a thinned intermediate region, extending outward radially from said central transition region, having a third thickness,
 said third thickness measures a thickness of said striking face portion between said frontal striking surface and said internal rear surface,
a thickened stress reducing region, extending outward radially from said thinned intermediate region, having a fourth thickness,
 said fourth thickness measures a thickness of said striking face portion between said frontal striking surface and said internal rear surface, and
a thinned perimeter region, extending outward radially from said thickened stress reducing region, having a fifth thickness,

wherein said internal rear surface can be divided into a clock grid comprising at least;
a 12 o'clock ray,
a 1 o'clock ray,
a 2 o'clock ray,
a 3 o'clock ray,
a 4 o'clock ray,
a 5 o'clock ray,
a 6 o'clock ray,
a 7 o'clock ray,
an 8 o'clock ray,
a 9 o'clock ray,
a 10 o'clock ray, and
an 11 o'clock ray;

wherein said thickened stress reducing region is located only at a region consisting of an upper region between said 9 o'clock ray and said 2 o'clock ray and a lower region between said 3 o'clock ray and said 9 o'clock ray.

12 . The golf club head of claim 11 , wherein said thickened stress reducing region is located only at a region consisting of an upp

Assignees

• Acushnet Co

Inventors

• Carr Kyle A
• Harvell Christopher D
• Murphy Stephen S

Classifications

• A63B53/0466

  wood-type · CPC title

• A63B53/0408

  characterised by specific dimensions, e.g. thickness · CPC title

• A63B53/0458 Primary

  with non-uniform thickness of the impact face plate · CPC title

• A63B53/042

  the face insert consisting of a material different from that of the head · CPC title

• A63B53/0454

  Strengthening ribs on the rear surface of the impact face plate · CPC title