Golf club

• US 5,611,740 A
• Filed: 01/31/1996
• Issued: 03/18/1997
• Est. Priority Date: 02/13/1995
• Status: Expired due to Fees

• Current Assignee: Yamaha Corporation
• Original Assignee: Yamaha Corporation
• Inventors: Nagamoto, Itsushi
• Primary Examiner(s): Passaniti, Sebastiano
• Application Number:
  US08/594,147
• Time in Patent Office: 412 Days
• Field of Search: 473/305, 473/306, 473/307, 473/308, 473/309, 473/310, 473/311, 473/312, 473/313, 473/282
• US Class Current: 473/305
• CPC Class Codes: A63B 53/02 Joint structures between the head and the shaft
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence
• CPC Class Codes: A63B 60/54 with means for damping vibrations

Abstract

A golf club with a head and a hosel which are separate pieces. The hosel connected to the head is made from a material with a low specific gravity and a high strength such as titanium (Ti), a titanium alloy, an aluminum alloy and a fiber-reinforced plastic (FRP), which is different from the material used for the head.

Claims

1. A golf club comprising:

a shaft;

a head provided at one end of said shaft, said head being provided with an engagement hole formed in a base end portion of a heel side of said head, said head being formed from a material selected from the group consisting of a soft iron, carbon steel (Be--Cu), and stainless steel SuS); and

a hosel provided at said one end of said shaft so that an engagement part formed at one end of said hosel is fitted in said engagement hole of said head, said hosel being formed from a material which is different from said material used for said head and selected from the group consisting of titanium (Ti), and a titanium alloy, having a low specific gravity and a high strength.

2. A golf club according to claim 1, further comprising a washer of constant thickness provided between said head and hosel whereby vibration and shock is prevented.