| 摘要 |
PURPOSE:To make it possible to detect the positioin of a printed board and a checker pin with simple structure and high accuracy by providing conducting pattern groups comprising a plurality of conducting patterns whose surfaces are exposed in a blank portion of a board and which are laid out at a specified span. CONSTITUTION:A printed board 1 exposes its surface on a blank portion 2 of the board and forms conducting pattern groups 3 laid out at a specified span. Having fixed the printed board 1, a plurality of reference checker pins 5a are placed into contact with each of conducting patterns 4 and the subsequent checker pin 5 is placed into contact with one of the conducting patterns 4. A fixing position of the printed board with the reference checker pins of the checker pin 5 is determined by inspecting a continuity state between the checker pin and each reference checker pin 5a. This construction makes is possible to detect the position between the printed board 1 and checker pin 5 with simple structure and high accuracy. |
