Invention Grant
US09533198B2 Racket frame 有权
拍框架

Racket frame
Abstract:
In a racket frame 2, stoppers 28 are each located on a tip side of a narrow diameter portion 26 protruding from a side of an inner circumferential surface 4b of a head 4. A steel sheets 16 is fixed on the side of the inner circumferential surface 4b opposing the stoppers 28 via the narrow diameter portion 26. Weights 14 each include a magnet sheet 32. The narrow diameter portion 26 is inserted through notches 36 and 38 of the weights 14. The steel sheets 16 and the magnet sheet 32 are bound with magnetic force. The notches 36 and 38 of the weights 14 are locked to a string protecting member 12. The stoppers 28 prevent the weights 14 from being detached form the head 4. The weights 14 are detachably mounted on the head 4.
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