Golf club

• US 6,638,183 B2
• Filed: 11/30/2001
• Issued: 10/28/2003
• Est. Priority Date: 03/02/2001
• Status: Expired due to Fees

• Current Assignee: K.K. Endo Seisakusho
• Original Assignee: K.K. Endo Seisakusho
• Inventors: Takeda, Hitoshi
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US10/004,007
• Publication Number:
  US 20020165041A1
• Time in Patent Office: 697 Days
• Field of Search: 473/324, 473/334, 473/335, 473/336, 473/337, 473/338, 473/339, 473/349, 473/350, 473/342, 473/290, 473/291, 473/345, 473/256
• US Class Current: 473/335
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 2209/00 Characteristics of used materials
• CPC Class Codes: A63B 53/0416 Heads having an impact surface provided by a face insert
• CPC Class Codes: A63B 53/047 iron-type
• CPC Class Codes: A63B 53/0475 with one or more enclosed cavities
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence

Abstract

A golf club with a further lowered center of gravity, while retaining an excellent external appearance. A head body 2A is provided with a shaft attachment portion 5 and a recess portion 8 formed in a portion corresponding to a face 4. A face member 6 is provided in the recess portion 8. An balance weight 7 is provided in a through-hole 13 formed in a sole portion 12 of the head body 2A in the longitudinal direction. Thus, the balance weight 7 is effectively arranged in the sole portion 12 which is formed the thickest in an iron head 2 so that not only the volume of the balance weight 7 but also the weight thereof can be increased. Hence, the strength of junction can be insured without using screws and pins, keeping the external appearance from being impaired.

Claims

1. A golf club with a face on a front and a shaft attachment portion connected with a shaft, comprising:

a head body including said shaft attachment portion and a recess portion formed in a portion corresponding to said face, said head body defining a front-to-rear ball-striking direction, and a heel-to-toe direction;

a face member provided in said recess portion;

a cavity portion formed in a sole portion of said head body in the front-to-rear direction; and

a balance weight provided in said cavity portion,

wherein said balance weight comprises a projecting portion which protrudes forward at both sides of said weight defined in the heel-to-toe direction, including a flanged latching portion for latching onto said recess portion with a front face of each projecting portion abutted against a rear face of the face member.

2. A golf club according to claim 1, wherein said balance weight makes up at least 35% of the total weight of said head.

3. A golf club according to claim 1, wherein said balance weight is formed larger at both sides than at a middle side in a longitudinal length.

4. A golf club according to claim 1, wherein said recess portion is formed with a step portion on its both sides defined in the heel-to-toe direction, said step portion being formed by cutting away a front verge of said recess portion so that said latching portion is allowed to latch onto said step portions.

5. A golf club with a face on a front and a shaft attachment portion connected with a shaft, comprising:

a head body including said shaft attachment portion and a recess portion formed in a portion corresponding to said face, said head body defining a front-to-rear ball-striking direction, and a heel-to-toe direction;

a face member provided in said recess portion;

a through-hole formed in a sole portion of said head body in the front-to-rear direction; and

a balance weight provided in said through-hole,

wherein said balance weight comprises a projecting portion which protrudes forward at both sides of the weight defined in the heel-to-toe direction, including a flanged latching portion to latch onto said recess portion with a front face of each projecting portion abutted against a rear face of the face member.

6. A golf club according to claim 5, wherein said balance weight makes up at least 35% of the total weight of said head.

7. A golf club according to claim 5, wherein said balance weight is formed larger at both sides thereof than at a middle thereof in a longitudinal length.

8. A golf club according to claim 5, wherein said recess portion is formed with a step portion on its both sides defined in the heel-to-toe direction, said step portion being formed by cutting away a front verge of said recess portion so that said latching portion is allowed to latch onto said step portions.