Golf club iron

• US 4,653,756 A
• Filed: 10/25/1985
• Issued: 03/31/1987
• Est. Priority Date: 10/25/1985
• Status: Expired due to Term

• Current Assignee: Daiwa Seiko Incorporated
• Original Assignee: Daiwa Resort Company Limited (Daiwa House Industry Company Limited)
• Inventors: Sato, Koji
• Primary Examiner(s): Marlo, George J.
• Application Number:
  US06/791,207
• Time in Patent Office: 522 Days
• Field of Search: 273/162 R, 273/162 F, 273/167 E, 273/167 J, D21/214, D21/215, D21/216, D21/217, D21/218, D21/219, D21/220, D21/169, D21/170, D21/171, D21/172, D21/173, D21/174, D21/175, D21/194 A, D21/186 A
• US Class Current: 473/327
• CPC Class Codes: A63B 2225/01 Special aerodynamic features, e.g. airfoil shapes, wings or air passages
• CPC Class Codes: A63B 53/04 Heads
• CPC Class Codes: A63B 53/0437 with special crown configurations
• CPC Class Codes: A63B 53/0462 characterised by tapering 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

Abstract

A metal golf club head comprising a face portion, a wing extending from the upper end of said face portion rearwardly thereof. The upper surface of said wing is contoured for coincidence with the radial trajectory of the golf club head during down swinging thereof. A toe portion extends rearwardly from the outer end of the face portion, a sole portion extends rearwardly from the lower end of said head with there being a rearwardly opening recess in said club head defined by the wing, sole portion, toe portion, rearward surface of said face portion and a heel portion at the inner end of said face portion. Said wing and said toe portion may be constructed independently of said head and secured to the face portion thereof as by suitable fasteners.

Claims

1. In a golf club iron, a club head including a body having a top portion, a sole portion, and a face portion, characterized by the top portion and sole portion being provided with respective upper and lower wings extending rearwardly from the face portion, said wings both being in coincidence with the radial trajectory of the head during the downswing of the club, said wings providing minimal disturbance in laminar air flow passing along outer surfaces of the wings for decreased aerodynamic reaction on the head body during downswing of the club.

2. In a golf club iron as defined in claim 1, said wings being integrally formed with said club head body.

3. In a golf club iron as defined in claim 1, said lower wing being integrally formed with said club head body to define said sole portion, said club head body having a rearward face, said upper wing being fabricated as a unit nonintegral with said club head body, and means for securing said upper wing to said rearward face.

4. In a golf club iron as defined in claim 3, there being a heel portion provided at an inner end of said face portion, said upper wing being formed integrally with a toe portion remote from said heel portion.

5. In a golf club iron as defined in claim 3, said upper wing being constructed of synthetic resin.

6. In a golf club iron as defined in claim 3, said upper wing being constructed of metal.

7. In a golf club head as defined in claim 1 wherein said lower wing is integrally formed with said club head body.

8. In a golf club head as defined in claim 1 wherein means are provided for detachably securing said upper wing to said body.

9. In a golf club head as defined in claim 1 wherein a toe portion extends rearwardly from the outer end of said face portion, said sole portion extending rearwardly from the lower end of said face portion, there being a heel portion provided at the inner end of said face portion and extending rearwardly therefrom to define said lower wing, a neck portion integrated with said heel portion, said body having a rearwardly opening recess defined between said wings.