Golf club head and golf club

Patent metadata

Field	Value
Publication number	US-10245475-B2
Application number	US-201715652969-A
Country	US
Kind code	B2
Filing date	Jul 18, 2017
Priority date	Jul 18, 2017
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

A golf club head according to an embodiment includes a face having a ball striking surface and a back surface. The back surface of the face has a thick portion located at a generally center portion thereof in a direction from the toe toward the heel, a thin portion located around the thick portion, and a tapered portion located between the thick portion and the thin portion. The thick portion has a first width which is a width in a heel-toe direction, and a second width which is a width in a sole-top direction and is larger than the first width, and the thick portion also has a first thickness. The thin portion has a second thickness smaller than the first thickness. The tapered portion has a thickness reduced from the side of the thick portion toward the side of the thin portion.

First claim

What is claimed is:

1. An iron golf club head comprising:
a face having a ball striking surface and a back surface opposite to the ball striking surface,
a sole portion constituting a bottom portion of the iron golf club head,
an edge portion provided at the back surface and defining a cavity, the edge portion having an undercut portion,
the back surface of the face having a thick portion located at a generally center portion thereof in a direction from a toe of the golf club head toward a heel of the golf club head, a thin portion located around the thick portion, and a tapered portion located between the thick portion and the thin portion,
the thick portion having a first width which is a width in a direction from the heel of the golf club head toward the toe of the golf club head, and a second width which is a width in a direction from the sole of the golf club head toward a top of the golf club head and larger than the first width, the thick portion also having a first thickness,
wherein the thick portion extends from an upper surface the sole portion located in the undercut portion,
wherein the thick portion is connected to the sole portion via a fillet portion,
the thin portion having a second thickness smaller than the first thickness, wherein the second thickness of the thin portion is a constant thickness,
the tapered portion having a thickness reduced from a side of the thick portion toward a side of the thin portion, and
at least a part of the thick portion being located in the undercut portion.

2. The iron golf club head according to claim 1 , wherein the first thickness and the second thickness have a difference of 0.25 mm or more and 1.25 mm or less.

3. The iron golf club head according to claim 1 , wherein:
the tapered portion has a third width; and
the third width is 2 mm or more and 20 mm or less.

4. The iron golf club head according to claim 1 , wherein:
the tapered portion has a third width; and
a value of the first width plus the third width multiplied by two, divided by a length from the sole to a top portion of the tapered portion, is 0.5 or less.

5. An iron golf club comprising the iron golf club head according to claim 1 .

Assignees

• Mizuno Kk

Inventors

• Aoki Tomoaki
• Hosooka Daisuke
• Doi Kazuhiro

Classifications

• A63B2053/0433

  Human Necessities · mapped topic

• A63B53/04 Primary

  Heads · CPC title

• A63B53/0466

  wood-type · CPC title

• A63B2053/0462

  Human Necessities · mapped topic

• A63B53/047 Primary

  iron-type · CPC title