Racket frame of plastic compound material

Details Racket frame of plastic compound material Racket frame of plastic compound material

1992-06-17

1993-12-28

Millin, V.

Amusement devices: games

Aerial projectile game; game element or accessory therefor...

Target

273 73G, 273DIG23, A63B 4910

Patent

active

052732797

ABSTRACT:
A racket frame of plastic compound material has a shaft and a head frame coupled with the shaft. Such racket frame is provided with a hollow shell body having a first portion making up the shaft and a second portion forming the head frame. The first portion is furnished with at least a layer of fiber-reinforced plastic material which is made from a thermoplastic plastic as a matrix and reinforced by a long fiber reinforcing material. The second portion contains at least a layer of fiber-reinforced plastic material which is made from a thermosetting plastic as a matrix and reinforced by a long fiber reinforcing material. The first and the second portions are joined together to form a junction which is wrapped around by the fiber-reinforced plastic material of the second portion. The racket frame so made is provided with superior qualities of strength, stiffness, bouncing capability, toughness, and shock-absorbing capability.

REFERENCES:
patent: 4511523 (1985-04-01), Hsu
patent: 5071125 (1991-10-01), Shen
patent: 5114145 (1992-05-01), Yamaguchi et al.
patent: 5174568 (1992-12-01), You
patent: 5176868 (1993-01-01), Davis

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