Golf club head

• US 4,534,564 A
• Filed: 07/18/1983
• Issued: 08/13/1985
• Est. Priority Date: 07/21/1982
• Status: Expired due to Fees

• Current Assignee: Daiwa Seiko Incorporated
• Original Assignee: Daiwa Resort Company Limited (Daiwa House Industry Company Limited)
• Inventors: Yamada, Magoichi
• Primary Examiner(s): Marlo, George J.
• Application Number:
  US06/515,379
• Time in Patent Office: 757 Days
• Field of Search: 273/169, 273/167 H, 273/170, 273/171, 273/172, 273/173, 273/174, 273/167 F
• US Class Current: 473/345
• 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 60/00 Details or accessories of golf clubs, bats, rackets or the like

Abstract

A golf club driver head made from a plastic such as nylon is provided with a sole plate covering a cavity of a predetermined size and depth including a blind bore devoid of any weighting material extending from the inner end of the cavity towards the toe whereby the mass of the head is distributed for dynamic balance.

Claims

1. A golf club driver head comprising:

(a) a club head body made of high density plastic, and having a face portion, a top portion, a sole portion having a step for mounting a sole plate, a toe portion, a heel portion, a back portion and a neck;

(b) said club head body having a cavity extending upwardly from an opening located substantially centrally of said sole portion;

(c) a sole plate mounted at said step and covering said opening of said sole portion, said sole plate having a configuration substantially corresponding to that of said sole portion, except for a narrowed portion substantially midway between the region of the face portion and the region of the back portion;

(d) said club head body having a blind bore devoid of any weighting material extending transversely from the inner end of said cavity and forwardly towards said toe portion;

(e) said bore and cavity together with said centrally narrowed sole plate distributing the weight or mass of said head body to the peripheral portion thereof.