GOLF CLUB HEAD HAVING A COMPOSITE CROWN
First Claim
1. A golf club head, comprising:
- a body portion defining an upper opening and a front opening and having a sole and a side section, the side section extending rearward of the front opening and having toe, rear and heel regions, the body portion having a density of at least about 4 g/cc;
a striking plate securely attached to the body portion, enclosing the front opening; and
a crown secured to the body portion thereby enclosing the upper opening, the crown incorporating composite material and having a density between 1 g/cc and 2 g/cc, the crown having a maximum thickness no greater than about 2 mm, the golf club head having a maximum coefficient of restitution of at least 0.80 and a volume of at least 150 cc.
12 Assignments
0 Petitions
Accused Products
Abstract
The present invention resides in a golf club head having a high COR that is durable and has desirable acoustic qualities. The club head includes a body portion, a striking face and a crown forming a hollow cavity of at least 150 cc in volume. The body portion defines a front opening and an upper opening, and it includes a sole and a side section that extends rearward of the front opening. The striking plate is secured to the body portion, enclosing the front opening. While partially assembled, final weighting and/or other attachment of other members to the inner surface of the club head can be preformed, as desired. The crown is secured to the body portion, enclosing the upper opening. A surface veil may also be provided about a junction of the crown and body. The crown has a maximum thickness no greater than about 2 mm. The density of the crown is less than the density of the body portion. At least one of the striking plate and the crown is attached to the second portion by adhesive bonding, and the golf club head has a maximum coefficient of restitution of at least 0.80.
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Citations
19 Claims
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1. A golf club head, comprising:
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a body portion defining an upper opening and a front opening and having a sole and a side section, the side section extending rearward of the front opening and having toe, rear and heel regions, the body portion having a density of at least about 4 g/cc; a striking plate securely attached to the body portion, enclosing the front opening; and a crown secured to the body portion thereby enclosing the upper opening, the crown incorporating composite material and having a density between 1 g/cc and 2 g/cc, the crown having a maximum thickness no greater than about 2 mm, the golf club head having a maximum coefficient of restitution of at least 0.80 and a volume of at least 150 cc. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A golf club head, comprising:
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a body portion defining an upper opening and a front opening and having a sole and a side section, the side section extending rearward of the front opening and having toe, rear and heel regions, the body portion including a recessed support extended from a shoulder and positioned adjacent to the upper opening, the body portion having a density of at least about 4 g/cc; a striking plate securely attached to the body portion, enclosing the front opening; and a crown securely attached to the body portion enclosing the upper opening, the crown including plies of composite material having a fiber areal weight of between 20 g/m2 and 200 g/m2 and having a maximum thickness no greater than about 2 mm, the weight of the crown being less than the weight of a similar sized piece formed of the material of the body portion; wherein at least one of the striking plate and the crown is attached to the body portion by adhesive bonding, the golf club head having a maximum coefficient of restitution of at least 0.80 and a volume of at least 150 cc. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of manufacturing a hollow golf club head having a volume of at least 150 cc, comprising:
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forming a body of a metal material, the body having walls forming a front that defines a front opening, a side section, a sole and a top section that defines an upper opening, the body including a recessed support extended from a shoulder and positioned adjacent to the upper opening; forming a striking plate adapted to be secured to the body and enclose the front opening; securely attaching the striking plate to the body, enclosing the front opening; forming a crown of a material having a density less than 2 g/cc, the crown having a maximum thickness no greater than 2 mm, the crown adapted to be secured to the body, enclosing the upper opening; and securely attaching the crown to the body, enclosing the upper opening;
wherein at least one of the crown and the striking plate is attached by adhesive bonding to the opening in the body, the golf club head having a maximum coefficient of restitution of at least 0.80. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification