# US 2014/0155193 A1 · Golf club head

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- Number: US 2014/0155193 A1
- Document ID: US20140155193A1
- Status: Published application
- Kind: A1
- Application number: 14/048,891
- Filed: 2013-10-08
- Published: 2014-06-05
- Earliest claimed: 2012-12-05
- Assignees: Bridgestone Sports Co., Ltd.
- Applicants: Bridgestone Sports Co., Ltd.
- Inventors: Takaharu TAKECHI
- Web page: https://patentgrep.com/patent/US20140155193A1

## CPC

- A63B 53/0466: {wood-type}
- A63B 60/52: with slits
- A63B 53/0408: {characterised by specific dimensions, e.g. thickness}
- A63B 53/0433: {with special sole configurations}
- A63B 53/0437: {with special crown configurations}
- A63B 53/045: {Strengthening ribs}
- A63B 2209/00: Characteristics of used materials
- A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H)

## Abstract

A golf club head includes: a face portion; a crown portion, furrows being formed on an interior surface of at least a part of the crown part in a mesh-like pattern; a side portion; a sole portion, at least a front part of the sole portion being made of metal, and furrows being formed on an interior surface of at least a part of the front part in a mesh-like pattern; and a hosel portion.

## Claims

### Claim 1

A golf club head comprising:
a face portion;
a crown portion, furrows being formed on an interior surface of at least a part of the crown part in a mesh-like pattern;
a side portion;
a sole portion, at least a front part of the sole portion being made of metal, and furrows being formed on an interior surface of at least a part of the front part in a mesh-like pattern; and
a hosel portion.

### Claim 2 (depends on 1)

The golf club head according to claim 1, wherein the mesh-like pattern of the furrows comprises a polygonal pattern.

### Claim 3 (depends on 2)

The golf club head according to claim 2, wherein the furrow has a depth of 10 to 40% of an average thickness of the front part of the sole portion except the furrows and has a width of 0.1 to 0.6 mm.

### Claim 4 (depends on 1)

The golf club head according to claim 1, wherein the furrows are formed on a toe side and a heel side of the front part of the sole portion.

### Claim 5 (depends on 2)

The golf club head according to claim 2, wherein the furrows are entirely formed on the front part of the sole portion so that the average area of polygons in the polygonal pattern is larger on a central area of the front part than on a toe side and a heel side of the front part.

### Claim 6 (depends on 1)

The golf club head according to claim 1, wherein the furrows of the crown portion are formed on a front part thereof.

### Claim 7 (depends on 1)

The golf club head according to claim 1, wherein furrows are further formed on at least a part of an interior surface of the face portion in a mesh-like pattern.

### Claim 8 (depends on 7)

The golf club head according to claim 7, wherein the furrows are formed on a toe side and a heel side of the interior surface of the face portion.

### Claim 9 (depends on 7)

The golf club head according to claim 7, wherein the mesh-like pattern of the furrows of the face portion comprises a polygonal pattern, and the furrows of the face portion are entirely formed on the interior surface thereof so that the average area of polygons in the polygonal pattern is larger on a central area of the face portion than on a toe side and a heel side of the face portion.