Patent Application
20110070969
Not Applicable
1. Field of the Invention
The present invention relates to a hybrid golf club head.
2. Description of the Related Art
The prior art discloses many hybrid golf club heads.
The inventors wanted a hybrid that could play like an iron in the fairway and perforin better from the rough. The inventors didn't like how the current hybrids would tend to hit “fliers” from the rough and lose backspin.
The inventors also wanted the golf club to slide easily through the grass and play from a variety of lies and face angles.
These features were not available in current hybrid golf clubs.
In order to provide a hybrid with the desired qualities, the inventors moved the center of gravity forward and higher to give a trajectory more like an iron.
The inventors also designed the sole with exterior sole weights.
One aspect of the present invention is a hybrid golf club head. The hybrid golf club head includes a body comprising a crown section, a sole section and a face section. The hybrid golf club head also includes an exterior heel weight and an exterior toe weight, both positioned on the sole section. The exterior heel weight has a mass ranging from 5 to 10 grams. The exterior toe weight has a mass ranging from 5 to 10 grams. The hybrid golf club head also includes an interior weight chip positioned near the face section. The interior weight chip has a mass ranging from 4 to 8 grams. The hybrid golf club head has a moment of inertia Izz about a center of gravity ranging from 2000 to 3000 grams-centimeters squared. The hybrid golf club head has a moment of inertia Ixx about a center of gravity ranging from 1900 to 2500 grams-centimeters squared. The hybrid golf club head has a loft angle ranging from 18 degrees to 28 degrees. The hybrid golf club head has a volume ranging from 100 to 150 cubic centimeters. The hybrid golf club head has a mass ranging from 210 grams to 240 grams.
Having briefly described the present invention, the above and further objects, features and advantages thereof will be recognized by those skilled in the pertinent art from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
As shown in
The body 21 is preferably composed of a stainless steel material. Alternatively, the body 21 is composed of another iron alloy material, a titanium alloy, an aluminum alloy material or the like.
The hybrid golf club head 20 preferably has a hollow interior 29 as shown in
A stainless steel crown section 22a is welded over a recess in a metal crown section 22b.
Table One illustrates mass properties for a preferred embodiment of the hybrid golf club 20. A more thorough explanation of the moment of inertia measurements is explained in Murphy et al., U.S. Pat. No. 7,387,577, which is hereby incorporated by reference in its entirety. The Z axis lies in a crown section 22 to a sole section 23 direction, the X axis lies in a front to rear direction, and the Y axis lies in a heel to toe direction.
From the foregoing it is believed that those skilled in the pertinent art will recognize the meritorious advancement of this invention and will readily understand that while the present invention has been described in association with a preferred embodiment thereof, and other embodiments illustrated in the accompanying drawings, numerous changes, modifications and substitutions of equivalents may be made therein without departing from the spirit and scope of this invention which is intended to be unlimited by the foregoing except as may appear in the following appended claims. Therefore, the embodiments of the invention in which an exclusive property or privilege is claimed are defined in the following appended claims.
The Present Application claims priority to U.S. Patent Application No. 61/245,612, filed on Sep. 24, 2009, which is hereby incorporated by reference in its entirety.
| Number | Date | Country | |
|---|---|---|---|
| 61245612 | Sep 2009 | US |
