| 摘要 |
PROBLEM TO BE SOLVED: To prevent a support pin from rolling off from a support table even when falling on the support table or coming out of a bored support hole.SOLUTION: When a type of a printed board P is changed and so on, the support pin 12 is transferred before a new printed board P is produced. When the support pin 12 is transferred, the support pin 12 may fall on a backup table 2A when extracted from the support hole 13 bored in a stock area SA1 by a transfer suction nozzle 24 or may come out of the support hole 13 when transferred to an arrangement area after being extracted to fall on the backup table 2A. At this time, the support pin 12 rolls on the backup table 2A since the support pin 12 is generally in a cylindrical shape, but abuts against a fall preventive wall 33 stood at a peripheral edge on an upper surface of the backup table 2A to be prevented from falling off from the backup table 2A. |
