Wood-type core-shell golf club heads

Details Wood-type core-shell golf club heads Wood-type core-shell golf club heads

1987-09-18

1988-10-18

Marlo, George J.

Amusement devices: games

Puzzles

Take-aparts and put-togethers

273169, A63B 5304

Patent

active

047781858

ABSTRACT:
A wood-type core-shell golf club head includes a core of foamable synthetic resin with a shell of short and long fiber reinforced plastic having improved shock transmission and an ideal hard touch at impact of the head with a golf ball.
The shell includes in its face side section a homogeneous mixture of a resin matrix, and a fiber mixture of long reinforcement fibers having a length of from 12.5 to 50 mm, and short reinforcement fibers having a length of 3 mm or less, the content ratio of said long ad short fibers ranging from 90 to 70% by weight of said long fibers to 10 to 30% by weight of said short fibers, the content ratio of said mixture of fibers to said resin matrix ranging from 40 to 60% by weight of said fibers to 60 to 40% by weight of said resin matrix, the said face side section structure providing a club head which effectively transmits and reduces absorption of shock at impact of the club head with a golf ball.

REFERENCES:
patent: 3598693 (1971-08-01), Anderson et al.

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