IRON GOLF CLUB SET

• US 20120157222A1
• Filed: 11/18/2011
• Published: 06/21/2012
• Est. Priority Date: 12/15/2010
• Status: Abandoned Application

• Current Assignee: SRI Sports Limited (Sumitomo Rubber Industries Limited)
• Original Assignee: SRI Sports Limited (Sumitomo Rubber Industries Limited)
• Inventors: KII, Kenji
• Application Number:
  US13/299,390
• Publication Number:
  US 20120157222A1
• Time in Patent Office: Days
• US Class Current: 473/290
• CPC Class Codes: A63B 53/00 Golf clubs
• CPC Class Codes: A63B 53/005 Club sets
• CPC Class Codes: A63B 53/0408 characterised by specific dimensions, e.g. thickness
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like

Abstract

An iron golf club set 2 includes n iron golf clubs. Toe side sole widths d1 of the clubs are defined as d1(1), d1(2), . . . , d1(n) in an ascending order of a real loft angle L1. A maximum value of the toe side sole widths d1 is defined as d1max. A minimum value of the toe side sole widths d1 is defined as d1min. Heel side sole widths d2 of the clubs are defined as d2(1), d2(2), . . . , d2(n) in an ascending order of a real loft angle L1. A maximum value of the heel side sole widths d2 is defined as d2max. A minimum value of the heel side sole widths d2 is defined as d2min. The maximum value d1max is substantially equal to the minimum value d1min. The maximum value d2max is substantially equal to the minimum value d2min.

Claims

1. An iron golf club set comprising n iron golf clubs (n is an integer equal to or greater than 2),

wherein when toe side sole widths d1 of the clubs are defined as d1(1), d1(2), . . . , d1(n) in an ascending order of a real loft angle L1 from the club having the smallest real loft angle L1;

a maximum value of the toe side sole widths d1 is defined as d1max;

a minimum value of the toe side sole widths d1 is defined as d1min;

heel side sole widths d2 of the clubs are defined as d2(1), d2(2), . . . , d2(n) in an ascending order of a real loft angle L1 from the club having the smallest real loft angle L1;

a maximum value of the heel side sole widths d2 is defined as d2max;

a minimum value of the heel side sole widths d2 is defined as d2min;

bounce angles θ

1 of the clubs are defined as θ

1(1), θ

1(2), . . . , θ

1(n) in an ascending order of a real loft angle L1 from the club having the smallest real loft angle L1;

a maximum value of the bounce angles θ

1 is defined as θ

1max; and

a minimum value of the bounce angles θ

1 is defined as θ

1min,

the iron golf club set satisfies θ

1(1)≦

θ

1(2)≦

. . . ≦

θ

1(n);

the maximum value d1max is substantially equal to the minimum value d1min; and

the maximum value d2max is substantially equal to the minimum value d2min.

2. The iron golf club set according to claim 1, wherein a difference (d1max−

d1min) is equal to or less than 1.0 mm; and

a difference (d2max−

d2min) is equal to or less than 1.0 mm.

3. The iron golf club set according to claim 2, wherein the iron golf club set satisfies d1(1)≦

d1(2)≦

. . . ≦

d1(n), and d2(1)≦

d2(2)≦

. . . ≦

d2(n).

4. The iron golf club set according to claim 2, wherein iron golf club set satisfies d1(1)≧

d1(2)≧

. . . d1(n), and d2(1)≧

d2(2)≧

. . . ≧

d2(n).

5. The iron golf club set according to claim 2, wherein the difference (d1max−

d1min) is equal to or less than 0.8 mm; and

the difference (d2max−

d2min) is equal to or less than 0.8 mm.

6. The iron golf club set according to claim 1, wherein the iron golf club set satisfies θ

1(1)<

θ

1(n).

7. The iron golf club set according to claim 6, wherein the iron golf club set satisfies θ

1(1)<

θ

1(2)<

. . . <

θ

1(n).

8. The iron golf club set according to claim 1, wherein a ratio (d1/d2) is 0.75 or greater and 2.5 or less in all iron numbers.