发明名称 ADJUSTABLE STICK-LIKE SPORT APPARATUS
摘要 An adjustable stick-like sport apparatus has an outer tube and a stick, the outer tube has an opening. The stick slidably mounted in the outer tube and has an extension portion formed in one end and inserted into the outer tube. Two nipping members encircle the extension portion, are engaged with the extension portion and are mounted slidably in the outer tube. When the user rotates the stick with the extension portion, the nipping members are stable relative to the extension portion. The sticks may extend out of or retract in the outer tube to vary a length of the adjustable stick-like sport apparatus. After the length is adjusted, reversely rotating the stick causes the two nipping members to tightly abut the outer tube to fix the length of the adjustable stick-like sport apparatus.
申请公布号 US2007293340(A1) 申请公布日期 2007.12.20
申请号 US20060424860 申请日期 2006.06.17
申请人 CHENG CHEN-HUA 发明人 CHENG CHEN-HUA
分类号 A63B53/12 主分类号 A63B53/12
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