Golf club head

Details Golf club head Golf club head

2011-03-15

2011-03-15

Hunter, Alvin A (Department: 3711)

Games using tangible projectile

Golf

Club or club support

C473S347000

Reexamination Certificate

active

07905799

ABSTRACT:
The invention prevents a resin member from being broken so as to improve durability. The invention provides a golf club head (1) in which at least a part of a crown portion (4) forming an upper surface of the head is formed by a resin member (FR) made of a fiber reinforced resin in which a fiber is oriented in a matrix resin. The resin member (FR) includes a one-way fiber reinforced resin layer in which the fiber is oriented in one direction, and a fiber intersection lamination portion which is laminated so as to differentiate a direction of the fiber. At least two one-way fiber reinforced resin layers which are adjacent in a thickness direction are intersected at an angle of 30 to 130 degrees of the fiber. Further, a compressive strength of the fiber of the one-way fiber reinforced resin layer which is arranged in an innermost side in the fiber intersection lamination portion is set to be equal to or more than 1.3 GPa.

REFERENCES:
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patent: 6406381 (2002-06-01), Murphy et al.
patent: 6881159 (2005-04-01), Galloway et al.
patent: 6945876 (2005-09-01), Nakahara et al.
patent: 7189165 (2007-03-01), Yamamoto
patent: 7252599 (2007-08-01), Hasegawa et al.
patent: 7261645 (2007-08-01), Oyama
patent: 7281993 (2007-10-01), Oyama et al.
patent: 2003-111874 (2003-04-01), None
patent: 2005-058634 (2005-03-01), None

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