Callaway’s New Adjustable Hosel?

I suppose every hosel is adjustable given the right tools. Check out the hosel design found in a recently published Callaway patent application (US Pub. No. 20120115632).









The application describes the invention as:

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.
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[0005] 2. Description of Related Art

[0006] The USGA Rules of Golf limit set forth certain structural limits for conforming golf clubs. For example, Appendix II, Rule 2(c) states that, for non-putter clubs, a "shaft must be attached to the clubhead at the heel either directly or through a single plain neck and/or socket. The length from the top of the neck and/or socket to the sole of the club must not exceed 5 inches (127 mm), measured along the axis of, and following any bend in, the neck and/or socket."

[0007] Golf club hosels typically are cylindrical in cross section and are consistent in width, which provides support for the shaft but resists bending. Adjustable hosels currently are very popular among golfers, so there is a need to provide golf club hosels that can be adjusted or bent to change the angle of the shaft with respect to the golf club head without sacrificing structural integrity.

Interesting, but I don’t expect to see this one on store shelves anytime soon.

Dave Dawsey - Keeping an Eye on Adjustable Golf Club Technology

 
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