Patent ID: 7815522
Filing Date: 2010-10-19
Classification: A63B

Abstract:
1. A golf club head comprising: a sole configured to rest on a planar surface; a crown; a toe; a heel opposite the toe; a strike face generally bounded by a face perimeter edge and having a geometric center; a rear portion; a substantially enclosed interior cavity at least partially delimited by the sole, the crown, the strike face, and the rear portion; a hosel having a hosel axis, wherein the club head is oriented so that the hosel axis is positioned at a designated lie angle relative to the planar surface; an imaginary vertical plane perpendicular to the strike face and passing through the geometric center of the strike face, the imaginary vertical plane containing an imaginary line tangent to the strike face at the geometric center and intersecting the planar surface; a first reference point characterized by the intersection of the imaginary line and the planar surface; a second reference point located 20 mm away from the first reference point along the imaginary line in the direction of the crown; a third reference point located in the imaginary vertical plane 20 mm away from the first reference point along the planar surface in a direction toward the rear portion; a first junction point located in the imaginary vertical plane, the first junction point defined by the projection of the second reference point onto the strike face in a direction normal to the imaginary line; a second junction point located in the imaginary vertical plane, the second junction point defined by the projection of the third reference point onto the sole in a direction normal to the planar surface; a first imaginary junction-bounding line forming a closed loop and passing through the first junction point, wherein the first imaginary junction-bounding line is parallel to the face perimeter edge; a second imaginary junction-bounding line forming a closed loop and passing through the second junction point, wherein the second imaginary junction-bounding line is parallel to the face perimeter edge; a junction delimited by the portion of the club head between the first imaginary junction-bounding line and the second imaginary junction-bounding line, the junction comprising a top region and a bottom region, each having a heel-to-toe length dimension; at least one mass disposed entirely within the bottom region, the at least one mass having a first outer surface; a rib intersecting the at least one mass, the rib having a second outer surface; at least one imaginary plane parallel to the planar surface and having a first intersection with the first outer surface and a second intersection with the second outer surface, the first intersection having a first point nearest to the rear portion of the club head, the second intersection having a second point nearest to the rear portion of the club head, the second point being closer to the rear portion of the club head than the first point; and at least one transverse imaginary plane perpendicular to the planar surface and having a third intersection with the first outer surface and a fourth intersection with the second outer surface, the third intersection having a third point nearest to the crown of the club head, the fourth intersection having a fourth point nearest to the crown of the club head, the fourth point being closer to the crown of the club head than the third point.