发明名称 Dart board assembly
摘要 A dart board assembly includes a frame having a plurality of block bodies which are movably engaged with spaces defined by ribs extending from the frame. The frame is fixed to a backing and an electronic sensing member is connected between the backing and the frame. A plurality of conducting switches extend from the electronic sensing member. A first surface of a thin and elastic contact pad is connected to the electronic sensing member and a plurality of protrusions protrude from a second surface of the contact pad and a recess is defined in a second surface of the electronic sensing member corresponding to each of the protrusions. A gap is defined between an inside of each recess and the switches. The inside of the recess contacts the conducting switch corresponding thereto when the block body is stricken by a dart and moves the contact pads toward the electronic sensing member.
申请公布号 US2002109300(A1) 申请公布日期 2002.08.15
申请号 US20020123299 申请日期 2002.04.17
申请人 YIU CHIH-HAO 发明人 YIU CHIH-HAO
分类号 F41J5/052;(IPC1-7):F41J5/04 主分类号 F41J5/052
代理机构 代理人
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