To provide a delivery device for a thin plate-like object to be conveyed in a conveying device capable of rapidly and accurately sorting many kinds of thin plate-like objects to be conveyed without excessively extending the conveying device accompanying with a high speed of the conveying device.

Since the discharge out device is constituted such that a lower part of a thin plate-like case 2 conveyed is pushed out from a back surface side toward a front side by a turning arm 36, a belt conveyor 1b is not excessively extended and many kinds of thin plate-like cases 2 can be rapidly and accurately classified corresponding to a conveying speed of the thin plate-like case 2 conveyed.