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如今的美国自行车商店里,最时髦的莫过于带活动车把的自行车了。它是受公路赛车和越野自行车的影响发展而成的。然而对于那些既不参加比赛,又不在土路上骑车的普通人来说,这种自行车用作游览或运输工具也是十分合适的。早在12年前,伊利诺伊州发明家罗伊斯·胡施泰德的妻子抱怨自行车的变速齿轮传动系统时,他便着手寻求解决办法了。结果是6年后胡施泰德设计出一种15速径向齿轮变速轴,并由他将这种变速轴从实验场带到生产线自己动手装配。胡施泰德从未想当一名自行车制造家。他获得过60余项专利,当初只是想取得径向变速轴专利,然后再回到专职发明工作中去。但是他与自行
Today’s American bike shop, the most fashionable than with a mobile handlebar bike. It is developed by the impact of road racing and mountain biking. However, for those ordinary people who neither participate in the competition nor ride a bicycle on the dirt road, the bicycle is also suitable for use as a tour or transport. As early as 12 years ago, the wife of Illinois inventor Royce Husteldee complained about the bicycle’s gear-shifting system, he set out to find a solution. The result was a six-year Huschtendel designed a 15-speed radial gear-change shaft that he assembled by bringing this shaft from the field to the production line. Husteider never wanted to be a bike maker. He won more than 60 patents, originally just want to obtain radial shaft patent, and then back to the full-time invention work. But he and herself