发明名称 Bicycle frame
摘要 A bicycle frame which includes a plurality of structurally supporting tubes which are constructed in an aerodynamic shape resembling a teardrop. Each of the aerodynamic tubes have a major axis which is approximately three and one half times greater than the length of the minor axis. Each of the aerodynamic tubes are extruded incorporating an x-shaped cross brace the entire length of the tube within the internal chamber of the tube. The aerodynamic tube is to be constructed of aluminum.
申请公布号 US5221102(A) 申请公布日期 1993.06.22
申请号 US19910796853 申请日期 1991.11.25
申请人 SPANGLER, DAVID V. 发明人 SPANGLER, DAVID V.
分类号 B62K19/02 主分类号 B62K19/02
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