To provide a racket frame which can have excellent strength and hitting feeling.
This racket frame 10 includes fiber reinforced resinous layers. At least one of the fiber reinforced resinous layers is a layer (L1) in which a rubber component is blended. A matrix of the layer (L1) contains a rubber component. When a total weight of a matrix contained in the racket frame 10 is defined as Wm (g) and a total weight of the rubber component contained in the frame 10 is defined as Wg (g), a rate (%) of the total weight Wg to the total weight Wm is 2.5(%) or greater and 17.5(%) or less. In this frame 10, a ratio [Rh/Rs] of plane rigidity Rh to throat rigidity Rs is 0.05 or greater and 0.2 or less. Preferably, the plane rigidity Rh is 30 (kgf/cm) or greater and 70 (kgf/cm) or less. Preferably, the throat rigidity Rs is 250 (kgf/cm) or greater and 800 (kgf/cm) or less.
| JPH10290851A | 1998-11-04 | |||
| JPH11226153A | 1999-08-24 | |||
| JP2000350797A | 2000-12-19 | |||
| JP2001061996A | 2001-03-13 | |||
| JP2005045444A | 2005-02-17 |
Sumitomo Norio
Kuroyoshi Murohashi