METHOD AND MECHANISM FOR PREVENTING UNITS FROM BEING DRAWN OUT SIMULTANEOUSLY

摘要

PROBLEM TO BE SOLVED: To provide a unit simultaneous-drawing-out preventing method and its mechanism, which automatically lock one unit when another unit is drawn out so that the former unit can not be drawn out. SOLUTION: This mechanism is equipped with a simultaneous-drawing-out prevention member 15 which has a 2nd projection part 15c and is provided slidably to a main body 1; and the 2nd projection part 15c moves as a 1st projection part 15a moves and crosses the drawing-direction of a unit 3 which is drawn out when a lock lever 10 provided rotatably on the bottom wall of the unit 3 is rotated abutting against the 1st projection part 15a.