Golf club head
First Claim
1. A golf club head, comprising:
- a body, defining an interior cavity and comprising;
a sole portion, positioned at a bottom region of the golf club head;
a crown portion, positioned at a top region of the golf club head;
a skirt portion, positioned around a periphery of the golf club head between the sole portion and the crown portion;
a forward region;
a rearward region, opposite the forward region;
a heel region; and
a toe region, opposite the heel region;
a face portion, coupled to the body at the forward region of the body, wherein the face portion has a bulge radius between 190 mm and 600 mm and a roll radius between 100 mm and 600 mm;
a first wall, protruding uprightly from the sole portion, extending lengthwise in a heel-to-toe direction, and made of a first material having a first modulus of elasticity between 15 GPa and 350 GPa; and
a stiffener located within the interior cavity of the body and interposed between the interior surface of the face portion and the first wall, wherein the stiffener is made of a second material having a second modulus of elasticity less than the first modulus of elasticity, the second modulus of elasticity is between 0.5 GPa and 30 GPa, and the second material has a hardness of at least Shore 5.95D;
wherein;
a coefficient of restitution (COR) of the golf club head is at least 0.78;
a characteristic time (CT) of the golf club head at a center of the face portion is no more than 257 microseconds;
the golf club head further comprises a second wall, protruding uprightly from the sole portion, extending lengthwise in a generally front-to-back direction, and made of a third material having a third modulus of elasticity less than the first modulus of elasticity;
the second modulus of elasticity is greater than the third modulus of elasticity; and
the stiffener abuts the second wall.
7 Assignments
0 Petitions
Accused Products
Abstract
Disclosed herein is a golf club head. A face portion of the golf club head has a bulge radius between 190 mm and 600 mm and a roll radius between 100 mm and 600 mm. The golf club head further comprises a first wall, protruding uprightly from the sole portion, extending lengthwise in a heel-to-toe direction. The golf club head additionally comprises a stiffener located within the interior cavity of the body and interposed between the interior surface of the face portion and the first wall. The stiffener is made of a second material having a second modulus of elasticity less than the first modulus of elasticity. A coefficient of restitution (COR) of the golf club head is at least 0.78. A characteristic time (CT) of the golf club head at a center of the face portion is no more than 257 microseconds.
159 Citations
20 Claims
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1. A golf club head, comprising:
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a body, defining an interior cavity and comprising; a sole portion, positioned at a bottom region of the golf club head; a crown portion, positioned at a top region of the golf club head; a skirt portion, positioned around a periphery of the golf club head between the sole portion and the crown portion; a forward region; a rearward region, opposite the forward region; a heel region; and a toe region, opposite the heel region; a face portion, coupled to the body at the forward region of the body, wherein the face portion has a bulge radius between 190 mm and 600 mm and a roll radius between 100 mm and 600 mm; a first wall, protruding uprightly from the sole portion, extending lengthwise in a heel-to-toe direction, and made of a first material having a first modulus of elasticity between 15 GPa and 350 GPa; and a stiffener located within the interior cavity of the body and interposed between the interior surface of the face portion and the first wall, wherein the stiffener is made of a second material having a second modulus of elasticity less than the first modulus of elasticity, the second modulus of elasticity is between 0.5 GPa and 30 GPa, and the second material has a hardness of at least Shore 5.95D; wherein; a coefficient of restitution (COR) of the golf club head is at least 0.78; a characteristic time (CT) of the golf club head at a center of the face portion is no more than 257 microseconds; the golf club head further comprises a second wall, protruding uprightly from the sole portion, extending lengthwise in a generally front-to-back direction, and made of a third material having a third modulus of elasticity less than the first modulus of elasticity; the second modulus of elasticity is greater than the third modulus of elasticity; and the stiffener abuts the second wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification