Top plate transfer system.

Problem to be solved. To provide a top plate transfer system in which a locked top plate is transferred up and down using a low power and small drive source to reduce the size and space of a device itself, there is no need to provide a retreat space when aligning the top plate located at the bottom of a large number of top plates integrated in the lifting and lowering conveyor of a top plate rack unloader in multiple stages with the conveyance surface of a carry-out conveyor oscillated in a horizontal state, the height of the device can be suppressed, and even when transferring the top plate with different height, it can be handled by simple work. Solution. Among a large number of top plates that are stacked in multiple stages on a top plate rack, the top plate that is sequentially loaded from loading means as a...