发明名称 Tennis racket frame vibration damper consists of solid or hollow rods attached by bases to inner or outer surface of frame
摘要 The vibration damper (10) consists of a series of solid or hollow rods (21), each with a base (22) projecting from one end, by which they are attached to the inner or outer surface of the tennis racket frame (15) in zones where they do not make any contact with the strings. In the vibration damper, the damping elements are made from rubber, elastomer or resin and have a viscoelastic dynamic loss of between 0.30 and 1.50, measured at 10 Hz and between -5 and +5 deg C.
申请公布号 FR2830769(A1) 申请公布日期 2003.04.18
申请号 FR20020012805 申请日期 2002.10.15
申请人 SUMITOMO RUBBER INDUSTRIES LTD 发明人 TAKEUCHI HIROYUKI;NIWA KUNIO
分类号 A63B49/04;A63B49/00;A63B59/00;(IPC1-7):A63B49/04 主分类号 A63B49/04
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