Adjustable weight for golf club head

• US 9,302,160 B2
• Filed: 09/26/2013
• Issued: 04/05/2016
• Est. Priority Date: 09/26/2013
• Status: Active Grant

• Current Assignee: Acushnet Company (FILA Holdings Corp.)
• Original Assignee: Acushnet Company (FILA Holdings Corp.)
• Inventors: Song, Yu Jin
• Primary Examiner(s): PIERCE, WILLIAM M
• Application Number:
  US14/038,393
• Publication Number:
  US 20150087439A1
• Time in Patent Office: 922 Days
• Field of Search: 473334-339
• US Class Current: 1/1
• CPC Class Codes: A63B 2053/0491 with added weights, e.g. changeable, replaceable
• CPC Class Codes: A63B 53/04 Heads
• 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

A removable weight in the form of a plug screw that is received in a receptacle of a golf club head. The weight includes adjustment weight pieces that are added to or subtracted from the screw body to yield the desired weight adjustment. The plug screw is removably connected to the golf club head and includes multiple recesses which receive various shaped weight pieces. The weight pieces can be formed from a variety of materials, each having a particular density to provide a multitude of weight choices.

Claims

1. An adjustable weight plug for removable attachment to a golf club head, the plug comprising:

a body consisting of a threaded portion, a sidewall portion having a plurality of weight receiving ports distributed about a circumference of the side wall, and a top portion;

a weight piece of a size and dimension for insertion into one of the receiving ports in the sidewall, wherein the weight piece is shaped so that it has a thickness and a cross-sectional shape of a sector of a circle; and

the top portion having an aperture,

wherein the plug is secured in a receptacle in the golf club head by inserting a rotation tool into the aperture and tightening the plug.

2. The adjustable weight plug according to claim 1, wherein the weight piece is removable.

3. The adjustable weight plug according to claim 1, wherein the weight piece includes a plurality of weight pieces having the same shape, wherein at least two of the plurality of weight pieces are formed from different materials having different densities, permitting the overall weight of the plug and subsequently the golf club head to be increased or reduced.

4. The adjustable weight plug according to claim 1, wherein there are a plurality of weight receiving ports, each port having a recess shaped as a sector of a circle for accepting the weight piece.

5. The adjustable weight plug according to claim 4, further comprising a plurality of weight pieces, each shaped as a sector of a circle, disposed in the plurality of weight receiving ports.

6. The adjustable weight plug according to claim 1, wherein the body of the plug is extended in a longitudinal direction to isolate the threaded portion from the weight receiving ports.

7. The adjustable weight plug according to claim 1, wherein the sidewall portion is tapered so that it forms a conical outer surface.

8. The adjustable weight plug according to claim 7, wherein the threaded portion is disposed below the conical outer surface.

9. The adjustable weight plug according to claim 1, wherein the side wall portion has a cylindrical outer surface.

10. The adjustable weight plug according to claim 9, wherein the threaded portion is disposed on the cylindrical outer surface.

11. A removable weight plug for removable attachment to a golf club head, the plug comprising:

a body consisting of a threaded portion, a sidewall portion consisting of a rod, and a top portion;

at least one disc shaped weight plate of a size and dimension for attachment to the rod, wherein the at least one disc shaped weight plate includes a slot extending from an edge of the plate toward a center of the plate, wherein the slot intersects the edge of the plate, wherein the rod is received in the slot; and

the top portion having an aperture,

wherein the disc is secured to the rod and simultaneously the plug secured to a receptacle in the golf club head by inserting a rotation tool into the aperture and tightening the plug.

12. The removable weight plug according to claim 11, wherein the at least one disc shaped weight plate includes a plurality of disc shaped weight plates, wherein at least two of the plurality of weight plates are formed from different materials having different densities, therein, permitting the overall weight of the plug and subsequently the golf club head to be increased or reduced.

13. The removable weight plug according to claim 11, wherein a plurality of disc shaped weight plates are disposed on the rod.