Golf club

• US 5,976,033 A
• Filed: 08/13/1998
• Issued: 11/02/1999
• Est. Priority Date: 11/27/1997
• Status: Expired due to Fees

• Current Assignee: Kabushiki Kaisha Endo Seisakusho
• Original Assignee: Kabushiki Kaisha Endo Seisakusho
• Inventors: Takeda, Hitoshi
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US09/133,723
• Time in Patent Office: 446 Days
• Field of Search: 473/324, 473/334, 473/335, 473/336, 473/338, 473/337, 473/339, 473/345, 473/346, 473/349, 473/256, 473/328, 473/219, 473/226, 473/228, 473/291
• US Class Current: 473/334
• 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 53/04 Heads
• CPC Class Codes: A63B 53/0433 with special sole configurations
• CPC Class Codes: A63B 53/0466 wood-type
• 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 golf club with less limitations to materials usable for a balance weight on a outer face of a sole, having a structure for the balance weight to be easily fixed to a head body. A hollow head body 16 of a long iron has an outer shell formed with a through-hole 21, corresponding to the sole 4 portion. A projection 34 is formed on an upper face of the balance weight 31 so that the projection 34 is inserted into the through-hole 21. Another through-hole 35 is formed in the projection 34, into which is pressed a taper pin 36 to be anchored there. As a result, the balance weight 31 is securely fixed to the head body 16. Unlike the fixing by caulking a balance weight itself, the invention does not need the extensibility of the material of the weight 31. Accordingly, tungsten-based materials, for example, are also made usable.

Claims

1. A golf club incorporating a head having a shaft connected thereto and a face on a front, said head comprising:

a hollow head body, having an outer shell formed with a through-hole;

one or more balance weights to be securely fixed to an outer face of said head body, each having a projection formed therewith, said projection having a through-hole; and

a taper wedge member provided for each balance weight,

wherein said projection of the balance weight is inserted into said through-hole of the head body, and then said taper wedge member is pressed into the through-hole of said balance weight so as to securely fix the balance weight to the head body.

2. A golf club according to claim 1, wherein each balance weight is provided on a partial area of a sole of said head.

3. A golf club according to claim 2, wherein each balance weight is formed slender, extending from a front-to-back direction, having beveled portions at all sides of its bottom surface.

4. A golf club according to claim 1, wherein said through-hole of the balance weight is nearly horizontally formed.

5. A golf club according to claim 1, wherein each balance weight is formed of a tungsten-based material.