| 摘要 |
PROBLEM TO BE SOLVED: To simplify a tray structure without damaging the quality of its design, by so disposing the surface of its front panel and the surface of the front panel of a printed board that both the surfaces become nearly the same plane. SOLUTION: In a front panel 1 of a tray structure, there is provided a rectangular through hole having such a size that a printed board 3 and its front panel 4 can be inserted into the rectangular through hole from an inspection-surface side of the front panel 1. Further, on the rear-surface side of the front panel 1, the printed board 3 is attached to a frame 2 capable of storing it therein. The printed board 3 is so thrusted in the tray structure as to pass it through the through hole of the front panel 1 from the inspection-surface side, and it is inserted into the tray structure along printed-board guiding rails 6. The inserted printed board 3 is fastened to the tray structure by attaching its front panel 4 to the frame 2 in the end surface of the side of the front panel 1. In this case, the attachment position in the front and rear directions of the printed board 3 is so disposed that the surface of the front panel 4 of the board 3 and the surface of the front panel 1 become the same plane.
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