Iron golf club set

• US 6,179,726 B1
• Filed: 08/23/1999
• Issued: 01/30/2001
• Est. Priority Date: 09/25/1998
• Status: Expired due to Fees

• Current Assignee: Ryobi Limited (Techtronic Industries Company Limited)
• Original Assignee: Ryobi Limited (Techtronic Industries Company Limited)
• Inventors: Ishikawa, Hiroshi, Satoh, Tokuo
• Primary Examiner(s): Chapman, Jeanette
• Assistant Examiner(s): BLAU, STEPHEN LUTHER
• Application Number:
  US09/378,996
• Time in Patent Office: 526 Days
• Field of Search: 473/290, 473/291, 473/346, 473/350
• US Class Current: 473/290
• CPC Class Codes: A63B 53/005 Club sets
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/045 Strengthening ribs
• CPC Class Codes: A63B 53/0454 Strengthening ribs on the rear surface of the impact face plate
• CPC Class Codes: A63B 53/0458 with non-uniform thickness of the impact face plate
• 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
• CPC Class Codes: A63B 60/42 Devices for measuring, verifying, correcting or customising the inherent characteristics of golf clubs, bats, rackets or the like, e.g. measuring the maximum torque a batting shaft can withstand

Abstract

An iron golf club set comprises a plurality of iron golf clubs having respective club numbers different from each other. Sole widths of the iron golf clubs become gradually larger from No. 7 iron club toward a lower lofted iron club having the smaller loft angle than that of the No. 7 iron club and a higher lofted iron club having the larger loft angle than that of the No. 7 iron club. The sole widths of No. 5 iron club and iron golf clubs having the smaller loft angle than that of the No. 5 iron club are larger than the sole width of a sand wedge.

Claims

1. An iron golf club set, which comprises:

a plurality of iron golf clubs having respective club numbers different from each other,

wherein;

sole widths of said iron golf clubs become gradually larger from No. 7 iron club toward a lower lofted iron club having a smaller loft angle than that of said No. 7 iron club and toward a higher lofted iron club having a larger loft angle than that of said No. 7 iron club; and

the sole widths of No. 5 iron club and iron golf clubs having a smaller loft angle than that of said No. 5 iron club are larger than a sole width of a sand wedge.

2. The iron golf club set as claimed in claim 1, wherein:

shafts for said No. 7 iron club and iron golf clubs having a larger loft angle than that of said No. 7 iron club have a larger tip diameter than that of shafts for No. 6 iron club and iron golf clubs having a smaller loft angle than that of said No. 6 iron club.

3. The iron golf club set as claimed in claim 2, wherein:

a face of each of said iron golf clubs has on its back surface ribs projecting rearward; and

said ribs have projection lengths, which vary in a vertical direction and/or a horizontal direction of said face.

4. The iron golf club set as claimed in claim 3, wherein:

said ribs form a honeycomb structure.

5. The iron golf club set as claimed in claim 1, wherein:

a face of each of said iron golf clubs has on its back surface ribs projecting rearward; and

said ribs have projection lengths, which vary in a vertical direction and/or a horizontal direction of said face.

6. The iron golf club set as claimed in claim 5, wherein:

said ribs form a honeycomb structure.