Golf club head with adjustable weight bar
A golf club head with means for adjusting a center of gravity along more than one axis is disclosed herein. The golf club head comprises at least one rectangular weight bar disposed within a recessed region on the sole and adjustable within the recessed region. One end of the weight bar is reversibly fixed to the sole with a connection element, while the other end includes an engagement feature that engages a retention feature at the edge of the recessed region. The retention feature provides multiple locations at the edge of the recessed region to which the engagement feature can be fixed, and when the weight bar is in a configuration desired by a golfer, the weight bar can be reversibly secured to the sole and immobilized within the recessed region by tightening the connection element. The weight bar may also include a slidable weight assembly.
1. A golf club head comprising:
a body comprising a face, sole, heel side, toe side, and rear side;
a weight bar comprising a first end having a through-bore, a second end, and an engagement feature extending from the second end; and
a screw,
wherein the sole comprises a recessed region, a receiving opening, and a retention feature,
wherein the engagement feature engages the retention feature,
wherein the retention feature is disposed along an edge of the recessed region,
wherein the receiving opening is disposed within the recessed region,
wherein the recessed region is approximately triangular in shape and comprises a vertex, and
wherein at least a portion of the screw extends through the through-bore to engage the receiving opening and removably affix the weight bar to the sole within the recessed region.
2. The golf club head of claim 1 , wherein the receiving opening is disposed proximate the vertex.
3. The golf club head of claim 2 , wherein the vertex is disposed proximate the rear side.
4. The golf club head of claim 2 , wherein the vertex is disposed proximate the face.
5. The golf club head of claim 4 , wherein the vertex is disposed at a center region of the sole between the heel side and the toe side.
6. The golf club head of claim 1 , wherein the recessed region comprises an outer surface having a constant radius.
7. The golf club head of claim 6 , wherein the weight bar comprises a convex lower surface having a constant radius.
8. The golf club head of claim 1 , further comprising a slidable weight assembly, wherein the slidable weight assembly comprises an upper piece, a lower piece, and a mechanical fastener connecting the upper piece to the lower piece, wherein the weight bar comprises at least one rail, and wherein the mechanical fastener reversibly affixes the slidable weight assembly to the at least one rail.
9. The golf club head of claim 8 , wherein the at least one rail comprises first and second rails.
10. The golf club head of claim 1 , wherein the engagement feature is a hook and the retention feature is a narrow groove.
11. The golf club head of claim 1 , wherein the retention feature is a plurality of detents, wherein the engagement feature is a groove sized to receive each of the plurality of detents, and wherein each of the plurality of detents is spaced from adjacent detents along a horizontal Y axis.
12. The golf club head of claim 1 , wherein the golf club head is selected from the group consisting of a driver-type head, a fairway wood-type head, and a hybrid-type head.
13. A wood-type golf club head comprising:
a body comprising a face, a sole, a heel side, a toe side, and a rear side;
a weight bar comprising a first end having a through-bore, a second end having a rounded protrusion, an upper surface, a lower surface, and at least one rail extending between the first end and the second end;
a weight screw comprising a head portion and a threaded portion; and
a slidable weight assembly comprising an upper piece, a lower piece, and a mechanical fastener connecting the upper piece to the lower piece,
wherein the slidable weight assembly reversibly grips the rail when the mechanical fastener is tightened,
wherein the sole comprises a triangular recessed region,
wherein the triangular recessed region comprises a floor, a vertex, a vertical wall extending from the floor opposite the vertex, and a threaded receiving opening proximate the vertex,
wherein the vertical wall comprises an elongated groove extending horizontal to a ground plane,
wherein the elongated groove comprises a cross-sectional curvature that matches a curvature of the rounded protrusion,
wherein the rounded protrusion fits within the elongated groove, and
wherein the threaded portion of the weight screw extends through the through-bore and engages the threaded receiving opening to reversibly fix the weight bar to the golf club head.
14. The golf club head of claim 13 , wherein the vertical wall further comprises a plurality of vertical detents, wherein each of the plurality of vertical detents is disposed within the elongated groove, wherein each of the plurality of vertical detents is spaced from adjacent detents a distance D 1 , and wherein the rounded protrusion comprises a vertical groove sized to receive each of the plurality of vertical detents.
15. The golf club head of claim 14 , wherein D 1 is at least 0.10 inch, and wherein a width of the second end of the weight bar is less than 2×D 1 .
16. The golf club head of claim 13 , wherein the rounded protrusion is coated with a compressible material.
17. The golf club head of claim 13 , wherein the rounded protrusion is coated with a polymeric material selected from the group consisting of plastic and rubber.
18. The golf club head of claim 13 , wherein the floor comprises an outer surface having a constant radius, and wherein the lower surface of the weight bar comprises a constant radius.
19. The golf club head of claim 13 , further comprising a crown composed of a non-metal material, wherein at least a portion of the triangular recessed region is composed of a non-metal material, and wherein a remainder of the body is composed of a metal material.
20. The golf club head of claim 19 , wherein the non-metal material is selected from the group consisting of carbon composite and plastic, and wherein the metal material is selected from the group consisting of titanium alloy and steel.