发明名称 Ball game racquet with hollow frame
摘要 The ball game racquet, esp. for tennis, has a hollow frame (3) closed on the outside and forming a handle and frame part (3') with head. The head is strung (4) with intersecting strings (4',4'') going through holes (11) in the frame. Sleeves (9) are sealed in the holes and have holes (12) through which the strings pass from the inside to the outside and vice versa.The strings can move at least in one axial direction at right angles to the string's plane (BE) on the inside of the frame by an amount greater than the movement on the outside of the frame.
申请公布号 DE4229898(A1) 申请公布日期 1994.03.10
申请号 DE19924229898 申请日期 1992.09.08
申请人 FRANZ VOELKL GMBH & CO SKI, TENNIS SPORTARTIKELFABRIK KG, 94315 STRAUBING, DE 发明人 KLOSE, VOLKER, 8440 STRAUBING, DE
分类号 A63B49/00;A63B59/00;(IPC1-7):A63B49/02 主分类号 A63B49/00
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