GB2595398A

GB2595398A - Golf club head with open back cavity

Info

Publication number: GB2595398A
Application number: GB2112052.2A
Authority: GB
Inventors: S Wang Calvin; M Stokke Ryan; R Jertson Martin
Original assignee: Karsten Manufacturing Corp
Current assignee: Karsten Manufacturing Corp
Priority date: 2019-02-06
Filing date: 2020-02-06
Publication date: 2021-11-24
Anticipated expiration: 2040-02-06
Also published as: EP3921048A1; KR20210121233A; JP2022519733A; GB2595398B; GB2615050A; GB2617043B; GB2614452A; GB2617043A; WO2020163652A1; GB202306639D0; GB2615050B; EP3921048A4; GB2614452B; GB202112052D0

Abstract

Embodiments of golf club heads with energy storage characteristics are presented herein. In some embodiments, a golf club head comprises a hollow body comprising a strikeface, a heel region, a toe region opposite the heel region, a sole, a top rail and an inflection point. The inflection point provides increase bending of the strikeface thereby providing performance enhancement over clubs without an inflection point.

Claims

1. A golf club head comprising: a body having a sole and a top rail opposite the sole; a faceplate defining a strikeface; a back wall opposite the strikeface; a partial back cavity defined within the club head between the faceplate, the back wall, the sole, and the top rail; an indention formed in the back wall and extending toward the strikeface; a rear opening defined within the indention, the rear opening communicating with the partial back cavity at or proximate the exterior of the golf club head; and wherein a midplane extends through a geometric center of the strikeface and perpendicular thereto between the top rail and the sole such that at least half of the rear opening is located between the midplane and the top rail.

2. The golf club head of claim 1, wherein the midplane divides the strikeface into an upper region and a lower region; and wherein a projected area of the rear opening is defined by projecting an area of the rear opening onto the strikeface along a direction parallel to the midplane.

3. The golf club head of claim 2, wherein at least 50% of the projected area is located on the upper region.

4. The golf club head of claim 1, wherein the back wall surrounds and defines the indention; and the back wall extends between the top rail and the sole.

5. The golf club head of claim 4, wherein the back wall is further divided into an upper back wall and a lower back wall; wherein the upper back wall is adjacent the top rail and extends downward from the top rail; and wherein the lower back wall is adjacent the sole and extends upward from the sole.

6. The golf club head of claim 5, wherein a rear opening rim circumscribes the rear opening; wherein the rear opening rim is divided into an upper rim and a lower rim; wherein the upper rim is near the top rail and follows a contour of the upper back wall; and wherein the lower rim near the sole and follows a contour of the lower back wall.

7. The golf club head of claim 6, wherein a badge closes at least a portion of the indention from the partial back cavity, by being positioned within the rear opening rim.

8. The golf club head of claim 7, wherein the badge is adhered to the upper rim and lower rim.

9. The golf club head of claim 8, wherein the badge is made from any one of the following materials: aluminum, titanium, polymer, elastomer, or composite.

10. The golf club head of claim 1, wherein the faceplate is made from any one of the following materials: C300 steel, 17-4 stainless steel, 455 steel, 475 steel, 431 steel, maraging steel, titanium, composite, C350 steel, a Ni-Co-Cr steel alloy, a quench and tempered steel alloy, or 565 steel.

11. The golf club head of claim 1, wherein the body is made from any one of the following materials: 17-4 stainless steel, 455 steel, 475 steel, 431 steel, maraging steel, titanium, or composite.

12. The golf club head of claim 1, wherein the strikeface is coated with a durable finish; wherein the durable finish can be a Hydropearl 2.0 chrome plate finish or a high polished chrome finish.

13. The golf club head of claim 7, wherein the badge covers the entire rear opening.

14. The golf club head of claim 7, wherein the badge covers an upper portion of the rear opening; wherein the upper portion of the rear opening is adjacent the upper rim.

15. The golf club head of claim 7, wherein the badge covers a lower portion of the rear opening; wherein the lower portion of the rear opening is adjacent the lower rim.

16. The golf club head of claim 7, wherein the badge is selectively removable.

17. The golf club head of claim 7, wherein the partial back cavity of the club head can be filled with a vibration damping filler material.

18. The golf club head of claim 17, wherein the vibration damping filler material can fill 10% to 80% of a volume of the partial back cavity.

19. The golf club head of claim 18, wherein the vibration damping filler material can be any one of the following materials: polyethylene terephthalate, high-density polyethylene, polyvinyl chloride, polycarbonate, polypropylene, hot melt, other thermoplastics, composites, or polymer.

20. The golf club head of claim 7, wherein the vibration damping filler material can comprise a specific gravity ranging from 0.05 to 4.