Metal wood club

• US 20050170907A1
• Filed: 02/02/2004
• Published: 08/04/2005
• Est. Priority Date: 02/02/2004
• Status: Active Grant

• Current Assignee: Saso Golf Incorporated (Saso)
• Original Assignee: Saso Golf Incorporated (Saso)
• Inventors: Saso, Mitsuhiro
• Granted Patent: US 7,255,653 B2
• Time in Patent Office: Days
• US Class Current: 473/345
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0412 Volume
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/0466 wood-type

Abstract

A golf club having a metal wood club head including a toe, a heel, a club face, a sole, a rear profile, and a top profile shape. The club head is shaped to increase the moment of inertia of the club head. In one embodiment, a rear portion of the club head is truncated such that a top profile maximum width of the toe side and a top profile maximum width of the heel side are larger than a transverse top profile centerline width of the club head. The sole of the club head may have a sole recess which extends from the truncated region and through a portion of a center of the sole. In another embodiment, the wood club head approximates an elongated rectangular shape.

Claims

1. A golf club comprising:

(a) a metallic wood club head having a toe, a heel, a club face, and a top profile shape;

(b) the club head having a top profile maximum length and a transverse top profile centerline width, the ratio of the top profile maximum length to the transverse top profile centerline width being in the range of about 1.5 to about 2.2; and

(c) the club head having a toe side, a heel side and a top profile maximum width on the toe side and a top profile maximum width on the heel side, each of the top profile maximum width of the toe side and the top profile maximum width of the heel side being larger than the transverse top profile centerline width.

2. The golf club of claim 1 wherein the metallic wood club head is hollow.

3. The golf club of claim 1 wherein the ratio of the top profile maximum length to the transverse top profile centerline width is in the range of from about 1.55 to about 1.8.

4. The golf club of claim 1 wherein the ratio of the top profile maximum length to the transverse top profile centerline width is in the range of from about 1.60 to about 1.70.

5. The golf club of claim 1 wherein the top profile maximum width of the heel side is greater than the top profile maximum width of the toe side.

6. The golf club of claim 1 wherein the top profile maximum width of the toe side and the top profile maximum width of the heel side are substantially equal.

7. The golf club of claim 1 wherein the ratio of (1) the distance between a line parallel to the transverse top profile centerline and extending through the top profile maximum width on the toe side and a second line parallel to the transverse top profile centerline and extending through the top profile maximum width on the heel side and (2) the top profile maximum length is in range of between about 0.35 and about 0.70.

8. The golf club of claim 1 wherein the ratio of (1) the distance between a line parallel to the transverse top profile centerline and extending through the top profile maximum width on the toe side and a second line parallel to the transverse top profile centerline and extending through the top profile maximum width on the heel side and (2) the top profile maximum length is in range of between about 0.40 and about 0.60.

9. The golf club of claim 1 wherein the top profile length between (1) a line parallel to the transverse top profile centerline and extending through the toe side most rearward point and a line which extends parallel to the transverse top profile centerline and intersects an outermost point of the toe side is substantially equal to (2) a top profile length between a line parallel to the transverse top profile centerline and extending through the heel side most rearward point and a line which extends parallel to the transverse top profile centerline and intersects an outermost point of the heel side.

10. The golf club of claim 1 further comprising a rear profile extending from the toe to the heel of the golf club, the rear profile having a truncated portion extending between a most rearward point of the toe side and a most rearward point of the heel side.

11. The golf club of claim 10 wherein the truncated portion has a top profile innermost point, and wherein the distance between (1) a line which is parallel to the top profile maximum length and intersects the most rearward points of the toe side and heel side and (2) a line which is perpendicular to the transverse top profile centerline and intersects the top profile innermost point of the truncated portion is 20% or less of the top profile maximum width of the heel side.

12. The golf club of claim 10 wherein the truncated portion comprises a concave rear region which forms a rear portion of the club head.

13. The golf club of claim 12 wherein the concave rear region comprises a concave rear wall which forms the rear portion of the club head.

14. The golf club of claim 10 further comprising a sole bounded by the heel, toe, top profile, and club face, the sole having a sole recess extending from the truncated portion through a portion of a center of the sole.

15. The golf club of claim 14 wherein the sole recess is defined by two generally vertical walls having a maximum height in the range of from about 0.15 to about 0.30 inches.

16. The golf club of claim 14 wherein the sole recess is of substantially the same contour as adjacent regions of the sole of the club head.

17. The golf club of claim 14 wherein the two walls of the sole recess decrease in height from an inner portion of the sole recess towards a rear portion of the sole recess.

18. The golf club of claim 14 wherein the sole recess has a volume which is in the range of from about 2% to about 8% of the volume of the club head.

19. The golf club of claim 12 wherein the sole recess is of at least one of a triangular, rectangular, and polygonal shape.

20. The golf club of claim 12 wherein the sole recess has a horizontal maximum width that is at least 20% of the transverse top profile centerline width.

21. A golf club comprising:

(a) a hollow metal wood club head including a toe, a heel, a club face, and a top profile shape, the club head having a top profile maximum length and a top profile centerline width, a ratio of the top profile maximum length to the top profile centerline width being in the range of from about 1.5 to about 2.2; and

(b) the metal club wood club head having a volume of at least 225 cubic centimeters.

22. The golf club of claim 21 wherein the volume of the club head is at least about 275 cubic centimeters.

23. The golf club of claim 21 wherein the volume of the club head is at least about 325 cubic centimeters.

24. The golf club of claim 21 wherein the ratio of the top profile maximum length to the transverse top profile centerline width is in the range of from about 1.55 to about 1.8.

25. The golf club of claim 21 wherein the ratio of the top profile maximum length to the transverse top profile centerline width is in the range of from about 1.6 to about 1.7.

26. The golf club of claim 21 wherein the club head further comprises a top profile maximum width on a toe side and a top profile width on a heel side, each of the top profile maximum width of the toe side and the top profile maximum width of the heel side being greater than the transverse top profile centerline width.

27. The golf club of claim 26 wherein the top profile maximum width of the heel side is greater than the top profile maximum width of the toe side.

28. The golf club of claim 26 wherein the top profile maximum width of the toe side and the top profile maximum width of the heel side are substantially equal in width.

29. The golf club of claim 26 wherein the ratio of (1) the distance between a line parallel to the transverse top profile centerline and extending through the top profile maximum width on the toe side and a second line parallel to the transverse top profile centerline and extending through the top profile maximum width on the heel side and (2) the top profile maximum length is in range of between about 0.35 and about 0.60.

30. The golf club of claim 26 wherein the ratio of (1) the distance between a line parallel to the transverse top profile centerline and extending through the top profile maximum width on the toe side and a second line parallel to the transverse top profile centerline and extending through the top profile maximum width on the heel side and (2) the top profile maximum length is in range of between about 0.40 and about 0.70.

31. The golf club of claim 26 wherein the top profile length between (1) a line parallel to the transverse top profile centerline and extending through the toe side most rearward point and a line which extends parallel to the transverse top profile centerline width and intersects an outermost point of the toe side is substantially equal to (2) a top profile length between a line parallel to the transverse top profile centerline and extending through the heel side most rearward point and a line which extends parallel to the transverse top profile centerline width and intersects an outermost point of the heel side.

32. The golf club of claim 21 further comprising a rear profile extending from the toe to the heel of the golf club, the rear profile including a truncated portion extending in a plane between a most rearward point of a toe side and a most rearward point of a heel side.

33. The golf club of claim 32 wherein the truncated portion comprises a concave rear region which forms a rear portion of the club head.

34. The golf club of claim 32 wherein the concave rear region comprises a concave rear wall which forms the rear portion of the club head.

35. The golf club of claim 32 wherein the truncated portion has a top profile innermost point, and wherein the distance between (1) a line which is parallel to the top profile maximum length and intersects the most rearward points of the toe side and heel side and (2) a line which is perpendicular to the transverse top profile centerline and intersects the top profile innermost point of the truncated portion is 20% or less of the top profile maximum width of the heel side.

36. The golf club of claim 32 further comprising a sole bounded by the heel, toe, top profile, and club face, the sole having a sole recess extending from the truncated portion through a portion of a center of the sole.

37. The golf club of claim 36 wherein the sole recess is defined by two generally vertical walls having a maximum height in the range of from about 0.15 to about 0.30 inches.

38. The golf club of claim 36 wherein the sole recess is of substantially the same contour as adjacent regions of the sole of the club head.

39. The golf club of claim 36 wherein the two walls of the sole recess decrease in height from an inner portion of the sole recess towards a rear portion of the sole recess.

40. The golf club of claim 36 wherein the sole recess has a volume which is in the range of from about 2% to about 8% of the volume of the club head.

41. The golf club of claim 36 wherein the sole recess is of at least one of a triangular, rectangular, and polygonal shape.

42. The golf club of claim 36 wherein the sole recess has a horizontal maximum width that is at least 20% of the transverse top profile centerline width.