Hosel construction

Patent metadata

Field	Value
Publication number	US-2016008674-A1
Application number	US-201514858891-A
Country	US
Kind code	A1
Filing date	Sep 18, 2015
Priority date	May 12, 2010
Publication date	Jan 14, 2016
Grant date	—

Abstract

The present invention relates to a hosel for connecting a shaft to a club head. In one aspect of the invention, the hosel comprises a body having an undercut, wherein the undercut has a maximum cross section which tapers to a minimum cross section and increases to the maximum cross section immediately adjacent the club head. The hosel further comprises a flange section below the hosel and hosel bore above the undercut, the hosel bore section having a length of at least one inch. In another aspect of the invention, the hosel tapers in diameter from a maximum to a minimum width, and has a maximized interior mold line (IML) to improve bendability and weight savings.

First claim

We claim:

1 . A golf club head comprising:
a head body comprising a hollow interior having an interior mold line; a hosel comprising:
a tube body comprising an undercut;
a bore;
a barrier, and
a flange section located below the tube body at an interface between the head body and the hosel, wherein the bore has a length of at least one inch, is disposed entirely within the tube, and is located above the undercut, wherein the undercut has a maximum cross section that decreases to a minimum cross section and increases to the maximum cross section proximate the interface, wherein the interior mold line extends into the tube body above the flange section, wherein the undercut at least partially encircles the interior mold line, and wherein the barrier is disposed between the bore and the interior mold line.

2 . The golf club head according to claim 1 , wherein the flange section has a thickness of 0.020 to 0.050 inch.

3 . The golf club head according to claim 1 , wherein the undercut has a curved cross-sectional shape.

4 . The golf club head according to claim 1 , wherein the undercut has a polygonal cross-sectional shape.

5 . The golf club head according to claim 1 , wherein the hosel is integrally formed with the head body.

6 . The golf club head according to claim 1 , wherein the undercut has an overall vertical length of 0.025 inch to 1.5 inch.

7 . The golf club head according to claim 1 , wherein the hosel is welded to the head body, wherein a weld bead is disposed between the hosel and the head body, and wherein the flange is disposed below the weld bead.

8 . The golf club head according to claim 1 , further comprising a split collar sized to cover the undercut.

9 . The golf club head according to claim 8 , wherein the split collar is composed of a material selected from the group consisting of plastic and rubber.

10 . The golf club head according to claim 1 , wherein the barrier has a thickness of approximately 0.040 inch.

11 . The golf club head according to claim 1 , wherein the tube body comprises a width that decreases from a first thickness proximate an upper edge of the tube body to a second thickness proximate the interface.

12 . The golf club head according to claim 11 , wherein the first thickness is approximately 0.50 inch and wherein the second thickness is approximately 0.47 inch.

Assignees

• Callaway Golf Co

Inventors

• Cackett Matthew T
• Griffin Sean P

Classifications

• A63B53/0466 Primary

  wood-type · CPC title

• A63B53/047

  iron-type · CPC title

• A63B53/02 Primary

  Joint structures between the head and the shaft · CPC title

• A63B2209/00

  Characteristics of used materials · CPC title

• A63B53/0408

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