×

Golf club head and method for manufacturing the same

  • US 8,277,336 B2
  • Filed: 02/05/2009
  • Issued: 10/02/2012
  • Est. Priority Date: 05/01/2008
  • Status: Active Grant
First Claim
Patent Images

1. A method for manufacturing a golf club head having a hollow structure composed of a main body-member and a metal face member welded to the main body-member, the metal face member integrally including a face-plate and a turnback, the face-plate having a rear surface and a front surface forming a club face, the face-plate comprising a central thick part and a thinner peripheral part therearound, and the turnback extending backward from at least part of the edge of the club face, the method comprising:

  • step (a) of preparing a rolled material having a constant thickness;

    step (b) of cutting out a face member part from the rolled material;

    step (c) of making the face member by forming the turnback through press working on the face member part; and

    step (d) of machining the cutout face member part after the step (b) and prior to the step (c) to reduce the thickness of a corresponding-to-turnback region and a part of a corresponding-to-face-plate region,wherein the corresponding-to-turnback region is a region of the cutout face member part corresponding to the turnback, and the part of the corresponding-to-face-plate region is a region of the cutout face member part corresponding to the thinner peripheral part of the face-plate,wherein the machining is carried out on a flat surface of the cutout face member part corresponding to the rear surface of the face-plate, andwherein, the method further comprises, prior to the step (c), a step of heat treating the cutout face member part by heating the cutout face member part in a temperature ranging between 700 and 800°

    C., for 30 to 60 minutes and then slowly cooling down.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×