| 摘要 |
PROBLEM TO BE SOLVED: To provide a board backup mechanism that can realize quick arrangement work for changing the kind of board. SOLUTION: This mechanism is provided with a pedestal 1, a plurality of backup pins 2 that is projected upward from the upper surface of the pedestal and is fixed freely movable vertically onto the pedestal, a spring 5 that energizes upward the backup pins to keep them on the upper end, means 2a, 4, 7, and 8 for fixing the backup pins at optional positions, and an elevating mechanism that makes the pedestal close to the upper surface of a board that is horizontally positioned at the specified position above the pedestal at a predetermined interval and makes it apart therefrom. |
