| 摘要 |
PROBLEM TO BE SOLVED: To provide an underneath support device of a board for making efficient a tooling change with a simple mechanism at low costs. SOLUTION: In the underneath support device of a board for supporting the underneath surface of an already mounted board with a pin, the pin arranged in a lattice is composed of a lower number 13a and an upper member 13b that is engaged to the lower number 13a and is energized upward by a coil spring 18, and the height position of the upper end of the pin is fixed at two upper and lower positions by cutouts 14 and 15 provided at the lower member 13a and clamps 16 and 17 that are fitted to the upper member 13b and are selectively clamp only in one direction out of upper and lower directions by the cutouts 14 and 15, thus eliminating the need for desorbing the lower- support pin in the case of tooling change, and performing the tooling change of the lower-support device of the board efficiently at low facility costs. |
