Golf club head

Patent metadata

Field	Value
Publication number	US-9855475-B2
Application number	US-201615387257-A
Country	US
Kind code	B2
Filing date	Dec 21, 2016
Priority date	Dec 22, 2015
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

Provided is a golf club head including a head body that has a hollow structure, a rib, and a welding bead. The head body has a first region. The rib stands upright from an inner surface of the first region. The welding bead fixes the first region and the rib to each other. An opening is formed in side faces of the rib. The welding bead extends from a first position on the inner surface of the first region, passes through the opening, and reaches a second position on the inner surface of the first region.

First claim

The invention claimed is:

1. A golf club head comprising:
a head body that has a hollow structure and includes a first region;
a rib that stands upright from an inner surface of the first region; and
a welding bead that fixes the first region and the rib to each other,
wherein an opening is formed in side faces of the rib, and
the welding bead extends from a first position on the inner surface of the first region, passes through the opening, and reaches a second position on the inner surface of the first region.

2. The golf club head according to claim 1 , wherein the rib is made of a raw material that is different from that of the first region.

3. The golf club head according to claim 2 , wherein the rib is made of a material that has a lower specific gravity than that of the first region.

4. The golf club head according to claim 3 , wherein the opening includes a plurality of holes.

5. The golf club head according to claim 4 , wherein the welding bead includes a plurality of bead lines that pass through different holes.

6. The golf club head according to claim 3 , wherein the first region is a sole portion.

7. The golf club head according to claim 2 , wherein the opening includes a plurality of holes.

8. The golf club head according to claim 7 , wherein the welding bead includes a plurality of bead lines that pass through different holes.

9. The golf club head according to claim 2 , wherein the first region is a sole portion.

10. The golf club head according to claim 2 , wherein the opening includes at least one non-circular shaped hole.

11. The golf club head according to claim 1 , wherein the opening includes a plurality of holes.

12. The golf club head according to claim 11 , wherein the welding bead includes a plurality of bead lines that pass through different holes.

13. The golf club head according to claim 12 , wherein the plurality of holes are each a triangle and are aligned such that the rib at least partially forms a truss structure.

14. The golf club head according to claim 12 , wherein the first region is a sole portion.

15. The golf club head according to claim 11 , wherein the plurality of holes are each a triangle and are aligned such that the rib at least partially forms a truss structure.

16. The golf club head according to claim 15 , wherein the first region is a sole portion.

17. The golf club head according to claim 11 , wherein the first region is a sole portion.

18. The golf club head according to claim 1 , wherein the first region is a sole portion.

19. The golf club head according to claim 1 , wherein the opening includes at least one non-circular shaped hole.

Assignees

• Dunlop Sports Co Ltd

Inventors

• Motokawa Yuki

Classifications

• A63B60/50

  with through-holes (A63B60/18 takes precedence; for stringing purposes A63B49/00) · CPC title

• A63B53/0466 Primary

  wood-type · CPC title

• A63B2053/0454

  Human Necessities · mapped topic

• A63B60/002

  Resonance frequency related characteristics · CPC title

• A63B53/045

  Strengthening ribs · CPC title