发明名称 Circuitry for electronic scoring dartboard
摘要 An electronic dartboard which includes a circuit board having a plurality of contacts and a dart-engaging target assembly mounted in front of the circuit board. The target assembly has a plurality of individual scoring blocks. Each block has at least one stem rearwardly protruding towards the circuit board. A conductor point and a buffer ring are provided at the back end of the stem. The buffer ring spaces the conductor point from the contact point. When a dart is thrown on the dartboard the buffer ring deforms engaging the conductor point with the contact point.
申请公布号 US4804193(A) 申请公布日期 1989.02.14
申请号 US19870098975 申请日期 1987.09.21
申请人 AN WEI ENTERPRISE CO., LTD;CORTINA INTERNATIONAL CORP. 发明人 LIN, JUI S.;LIN, DANIEL
分类号 F41J5/052;(IPC1-7):F41J5/04 主分类号 F41J5/052
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