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US 7,220,189 B2Granted
Iron golf club
AssigneeCallaway Golf Company
InventorsChris J. Wieland, Karl A. Clausen, Uday V. Deshmukh, Jesse Bolane, Robert R. Lang, Roger Cleveland, Herbert Reyes, Augustin W. Rollinson
Life of this patent
Estimating the term…
Abstract
The iron golf club head (20) of the present invention is preferably composed of three main components: a periphery member 22, a central member 24 and a face plate 26. The periphery member (22) is preferably composed of a high density material such as a nickel-tungsten alloy. The central member (24) is preferably composed of a lightweight, non-metal material. The face plate (26) is preferably composed of a titanium alloy material. The iron golf club head (20) preferably has high moments of inertia Izz and Ixx.
Claims20
An iron golf club head comprising;
- a periphery member composed of a first metal material, the periphery member having a sole wall, a toe wall extending upward from the sole wall at a first end of the sole wall, a hosel extending upward from the sole wall at a second end of the sole wall, a heel wall extending upward from the sole wall, and a top wall extending from an upper end of the toe wall to an upper end of the heel wall, the top, sole, heel and toe walls of the periphery member defining an opening;
- a central member disposed in the opening of the periphery member, the central member being composed of a non-metal material;
- and
- a face plate composed of a second metal material, the second metal material having a lower density than the first metal material, the face plate being coupled to the periphery member and disposed over the central member.
1 more element
An iron golf club head comprising:
- a periphery member composed of a first metal material having a density between 8 g/cm3 and 12 g/cm3, the periphery member having a sole wall, a toe wall extending upward from the sole wall at a first end of the sole wall, a hosel extending upward from the sole wall at a second end of the sole wall, a heel wall extending upward from the sole wall, and a top wall extending from an upper end of the toe wall to an upper end of the heel wall, the top, sole, heel and toe walls of the periphery member defining an opening;
- a central member disposed in the opening of the periphery member, the central member being composed of a non-metal material;
- and
- a face plate composed of a second metal material, the second metal material having a lower density than the first metal material, the face plate being mounted in the opening of the periphery member and disposed over the central member, the face plate having a thickness between 0.040 inch and 0.250 inch.
1 more element
An iron golf club head comprising:
- a periphery member composed of a first metal material having a density between 8 g/cm3 and 12 g/cm3, the periphery member having a sole wall, a toe wall extending upward from the sole wall at a first end of the sole wall, a hosel extending upward from the sole wall at a second end of the sole wall, a heel wall extending upward from the sole wall, and a top wall extending from an upper end of the toe wall to an upper end of the heel wall, the top, sole, heel and toe walls of the periphery member defining an opening, the periphery member has a volume percentage of the golf club head ranging from 15% to 50%, and a mass percentage of the golf club head ranging from 50% to 80%;
- a central member disposed in the opening of the periphery member, the central member being composed of a non-metal material, the central member has a volume percentage of the golf club head ranging from 25% to 75%, and a mass percentage of the golf club head ranging from 10% to 30%.;
- and
- a face plate composed of a second metal material, the second metal material having a lower density than the first metal material, the face plate being mounted in the opening of the periphery member and disposed over the central member.
1 more element
An iron golf club head comprising:
- a periphery member composed of a first metal material having a density between 8 g/cm3 and 12 g/cm3, the periphery member having a sole wall, a toe wall extending upward from the sole wall at a first end of the sole wall, a hosel extending upward from the sole wall at a second end of the sole wall, a heel wall extending upward from the sole wall, and a top wall extending from an upper end of the toe wall to an upper end of the heel wall, the top, sole, heel and toe walls of the periphery member defining an opening, the periphery member having a mass that ranges from 100 grams to 240 grams;
- a central member disposed in the opening of the periphery member, the central member being composed of a non-metal material, the central member having a mass that ranges from 9 grams to 70 grams;
- and
- a face plate composed of a second metal material, the second metal material having a lower density than the first metal material, the face plate being mounted in the opening of the periphery member and disposed over the central member, the face plate having a mass that ranges from 15 grams to 50 grams;
- wherein the iron golf club head has a mass that ranges from 235 grams to 300 grams.
2 more elements
An iron golf club head comprising:
- a periphery member having a sole wall, a toe wall extending upward from the sole wall at a first end of the sole wall, a hosel extending upward from the sole wall at a second end of the sole wall, a heel wall extending upward from the sole wall, and a top wall extending from an upper end of the toe wall to an upper end of the heel wall, the top, sole, heel and toe walls of the periphery member defining an opening;
- a central member disposed in the opening of the periphery member, the central member being composed of a non-metal material and having a body portion with a perimeter, an interior surface, an exterior surface, a sole surface, a top surface, a toe surface, and a heel surface, the central member having at least one recess formed in the exterior surface of the body portion, the perimeter having a plurality of tabs projecting outward, the tabs engaging an interior surface of the periphery member;
- and
- a face plate composed of a titanium alloy, the face plate being mounted in the opening of the periphery member and disposed over the forward surface of the central member.
1 more element
An iron golf club head comprising:
- a periphery member composed of a first metal material having a density between 8 g/cm3 and 12 g/cm3, the periphery member having a sole wall, a toe wall extending upward from the sole wall at a first end of the sole wall, a hosel extending upward from the sole wall at a second end of the sole wall, a heel wall extending upward from the sole wall, and a top wall extending from an upper end of the toe wall to an upper end of the heel wall, the top, sole, heel and toe walls of the periphery member defining an opening, the periphery member has a volume percentage of the golf club head ranging from 15% to 50%;
- a central member disposed in the opening of the periphery member, the central member being composed of a non-metal material, the central member has a volume percentage of the golf club head ranging from 25% to 75%;
- and
- a face plate composed of a second metal material, the second metal material having a lower density than the first metal material, the face plate being mounted in the opening of the periphery member and disposed over the central member;
- wherein the iron golf club head has a total volume that ranges from 40.0 cm3 to 60.0 cm3.
2 more elements
Dependencies are inferred from the claim text.