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Patent Searching and Data


Title:
RACKET FRAME
Document Type and Number:
Japanese Patent JP2004097303
Kind Code:
A
Abstract:

To provide a racket frame improved in flexibility at stroke to prolong time (contact time between a ball and a ball striking surface) to catch the ball at the ball striking surface for a satisfactory control performance, and which has excellent surface stability and swing performance without having an incongruous appearance.

This racket frame is composed of a ball striking portion 4, a shaft portion 6 having a throat region 5 bifurcated and connected to the ball striking portion 4, and a grip portion 7. When the racket frame has a full length L of 680-710 mm and the ball striking portion 4 has an area of ≥ 485 cm2 and < 550 cm2, the shaft portion 6 has a length M within the range of 0.52L-0.57L of the full length L and the throat region 5 has a length Ma within the range of 0.078M-0.204M of the length M of the shaft portion 6.


Inventors:
KOZUKA AKIHIRO
HONDA YOJI
Application Number:
JP2002260527A
Publication Date:
April 02, 2004
Filing Date:
September 05, 2002
Export Citation:
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Assignee:
MIZUNO KK
MIZUNO TECHNICS KK
International Classes:
A63B49/02; A63B102/02; (IPC1-7): A63B49/02