发明名称 Dartboard having improved sliding segments
摘要 A dartboard includes a circular spider disposed on an upper portion. The circular spider includes a series of circumferentially and radially extending ribs for forming a number of dart areas and for slidably receiving and engaging with a number of dart segments. The dart segments each includes a lower peripheral portion having one or more stops extended laterally outward of the dart segment for engaging with the lower portion of the ribs of the spider and for preventing the dart segments from being disengaged from the dartboard. The stops of the dart segments are staggered relative to each other for preventing the stops from being engaged with each other.
申请公布号 US5897116(A) 申请公布日期 1999.04.27
申请号 US19980013160 申请日期 1998.01.26
申请人 YIU, CHIH-HAO 发明人 YIU, CHIH-HAO
分类号 F41J3/00;(IPC1-7):F41J3/00 主分类号 F41J3/00
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