Title:
RACKET FRAME
Document Type and Number:
Japanese Patent JP2003038684
Kind Code:
A
Abstract:
To provide a racket frame for an advanced player capable of demonstrating excellent repulsion performance and surface stability when a ball is hit even while weight is light and operability is excellent.
While the out-of-plane primary natural bending frequency (F1) of a shaft-grip part 8 is set within the range of 1,000 Hz-1,500 Hz, the ratio (F1/F2) of the out-of-plane primary natural bending frequency (F1) of the shaft- grip part 8 to the out-of-plane primary natural bending frequency (F2) of a ball hitting part 4 is set within the range of 2.0-2.7.
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Inventors:
NAGAO YASUSHI
KOZUKA AKIHIRO
KANAMORI KATSUJI
KOZUKA AKIHIRO
KANAMORI KATSUJI
Application Number:
JP2001236122A
Publication Date:
February 12, 2003
Filing Date:
August 03, 2001
Export Citation:
Assignee:
MIZUNO KK
International Classes:
A63B49/10; A63B49/02; A63B102/02; (IPC1-7): A63B49/02; A63B49/10