CG height adjustability by conformal crown weighting
View Patent ↗A golf club head comprising a crown with an edge support structure and a flexible, conformal weight sized to fit within the edge support structure is disclosed herein. The edge support structure preferably is disposed on an internal surface of the crown so that the conformal weight is invisible when the golf club head is viewed at address. The conformal weight can be removed to adjust the vertical center of gravity of the club head, and preferably is oriented in a front-to-back direction along the club head's X-axis. The conformal weight preferably is composed of a high-density polymeric material with a specific gravity ranging from 1.8 to 4.2.
1. A golf club head comprising:
a face component comprising a face component contact surface;
a crown comprising a crown front edge, a crown aft edge, an edge support structure, and an aft opening in communication with the edge support structure;
a flexible weight comprising a weight front edge, a width, a depth, a length, and a weight rear edge; and
a fastener,
wherein the aft opening is sized to receive the flexible weight,
wherein the flexible weight is removably retained within the edge support structure,
wherein the length of the flexible weight is greater than the width of the flexible weight, and
wherein the fastener places the flexible weight in compression within the edge support structure.
2. The golf club head of claim 1 , wherein the weight front edge abuts one of the crown front edge and the face component contact surface when the weight is fully engaged within the edge support structure.
3. The golf club head of claim 1 , further comprising a sole, wherein the sole comprises at least one weight port.
4. The golf club head of claim 1 , wherein the crown is composed of composite, and wherein the crown comprises a doubly curved shallow shell structure.
5. The golf club head of claim 1 , wherein the flexible weight is aligned with a golf club head X-axis when the flexible weight is engaged with the edge support structure.
6. The golf club head of claim 1 , wherein the edge support structure is integrally formed with the crown.
7. The golf club head of claim 1 , wherein the flexible weight comprises a polymer having a specific gravity value of 1.8 to 4.2.
8. The golf club head of claim 1 , wherein the edge support structure is selected from the group consisting of internal rails, an internal enclosed support structure, and external rails.
9. The golf club head of claim 8 , wherein the edge support structure is internal rails, and wherein the crown comprises an opening disposed over the internal rails to form an external channel.
10. The golf club head of claim 1 , wherein the weight front edge has shape selected from the group consisting of rectangular, tapered, and rounded.
11. The golf club head of claim 1 , wherein the flexible weight comprises a plurality of cutouts.
12. The golf club head of claim 11 , wherein the cutouts are disposed at an edge of the flexible weight.
13. The golf club head of claim 1 , wherein the fastener is a weight screw.
14. The golf club head of claim 13 , further comprising a clip restraint.
15. The golf club head of claim 1 , wherein the flexible weight has an initial un-deformed shape comprising a curvature that matches a curvature of the crown.
16. The golf club head of claim 1 , further comprising a damping layer disposed between the flexible weight and an interior surface the crown.
17. A driver-type golf club head comprising:
a face component comprising a face component contact surface;
a molded composite crown comprising a crown aft edge, an internal surface, and an edge support structure disposed on the internal surface;
a weight composed of a high density polymeric material; and
a fastener,
wherein the edge support structure is integrally formed with the crown,
wherein the weight comprises a rectangular shape and a tapered front edge,
wherein the weight is retained within the edge support structure,
wherein the weight is aligned with a golf club head X-axis when the weight is engaged with the edge support structure, and
wherein the weight is compressed between the fastener and the face component contact surface.
18. The driver-type golf club head of claim 17 , wherein the weight is hidden from view when it is fully engaged with the edge support structure.
19. The driver-type golf club head of claim 17 , wherein the weight comprises a plurality of weight protrusions.
20. The driver-type golf club head of claim 17 , wherein the weight comprises a thick-edged cross-sectional shape.