Iron club for golf

• US 5,851,157 A
• Filed: 05/24/1996
• Issued: 12/22/1998
• Est. Priority Date: 11/30/1994
• Status: Expired due to Fees

• Current Assignee: BGMA Company Limited, BMGA Company Limited
• Original Assignee: BMGA Company Limited
• Inventors: Nakazawa, Ikuo, Shimizu, Sadatsugu, Koide, Hiroichi
• Primary Examiner(s): Passaniti, Sebastiano
• Assistant Examiner(s): BLAU, STEPHEN LUTHER
• Application Number:
  US08/653,240
• Time in Patent Office: 942 Days
• Field of Search: 473/345, 473/305, 473/306, 473/307, 473/308, 473/309, 473/310, 473/311, 473/314, 473/340, 473/341, 473/324
• US Class Current: 473/305
• CPC Class Codes: A63B 53/02 Joint structures between the head and the shaft
• 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 53/047 iron-type
• CPC Class Codes: A63B 60/00 Details or accessories of golf clubs, bats, rackets or the like
• CPC Class Codes: A63B 60/02 Ballast means for adjusting the centre of mass A63B60/24, A63B60/54 take precedence

Abstract

To provide an easy-to-use iron club having a low gravitational center, a hosel portion (12) is formed on a base proximal end portion of a face (13) of a head portion (11), and a shaft hole (14) which penetrates from an upper end of the hosel portion (12) to a lower surface of the head portion (11) or does not penetrate to the lower surface of the head portion (11). A shaft (21) is inserted into the shaft hole (14).

Claims

1. A club of the iron type comprising a hosel, a shaft and a head, with a predetermined shape including a face, wherein the hosel projects directly from the face and the shaft is supported in a shaft hole formed in the hosel, wherein the face is substantially planar and wherein the hosel intersects the face to an extent of at least about 270 degrees about a periphery of the hosel, and wherein the shaft has an axis which, when extended downwardly, intersects the face.

2. The club according to claim 1 wherein the shaft hole passes from an upper end of the hosel to a lower surface of the head.

3. The club of claim 1 wherein the head and a metal pipe member, which is to become the hosel, are separately formed and the metal pipe member is inserted into a recess formed on a base end of the head.

4. The club according to claim 1 wherein a projection length of the hosel projecting upwardly from said face is limited so that the center of gravity of the overall head is located at a desired position.

5. The club of claim 1 wherein the hosel is integrally formed with the face and both are formed of metal by casting, forging or grinding.

6. The club of claim 1 wherein the head is formed from a hollow member composed of a body and the face, and the hosel comprises a metal pipe member inserted into a recess formed on a base end of the head.

7. The club of claim 1 wherein the shaft hole extends from an upper end of said hosel to close to a lower surface of said head, with the shaft extending close to a bottom of the shaft hole.

8. The club of claim 1 wherein a lower end face of the hosel is formed into a slant surface corresponding to an incline of the face so that said lower end face of the hosel is attached to said face, whereby a projection length of said hosel projecting upwardly from the face, in a direction perpendicular to said face, is limited.