发明名称 Roller skate with integral ratchet means
摘要 A roller skate includes a selectively engagable ratcheting plate that can be positioned for engaging a plurality of teeth formed integrally in one or more wheels of the skate. The plate rides on a cam that is slidably positioned for selective racheting or freewheeling operation. In the ratcheting mode the skate is prevented from rolling backwards thereby making it easier for a beginning skater to use.
申请公布号 US4553767(A) 申请公布日期 1985.11.19
申请号 US19840578473 申请日期 1984.02.09
申请人 THE QUAKER OATS COMPANY 发明人 ROBJENT, FREDERICK B.;KLAMER, REUBEN B.
分类号 A63C17/14;(IPC1-7):A63C17/14 主分类号 A63C17/14
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