To provide a racket frame capable of easily diversifying the characteristics such as rigidity and strength partially.
A first prepreg 11, a blade 20 and the second to sixth prepregs 12-16 are layered on a tube 30 in this order from the inner side. The blade 20 is formed by knitting a plurality of reinforcing fibers 21. The blade 20 is layered on a face portion 33 at 3 o'clock and at 9 o'clock positions, positions including the center C in the length L0 in the direction of a center line X of the face portion 33. The layered body is disposed within a forming die having a racket frame-shaped cavity, and the racket frame 1 is manufactured by heating and pressurizing the layered body disposed within the forming die after clamping the forming die.
JPH09215781 | SPORTS RACKET |
JPH09122275 | RACKET |
NOTAKE TAKAHIRO
JP2001269424A | 2001-10-02 | |||
JPH10337342A | 1998-12-22 | |||
JP2000233032A | 2000-08-29 | |||
JP2002065904A | 2002-03-05 | |||
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JPS5441364U | 1979-03-19 | |||
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JPH1142299A | 1999-02-16 | |||
JPH11290484A | 1999-10-26 | |||
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Arinaga Shun