Patent ID: 8118531
Filing Date: 2012-02-21
Classification: B65G,H05K

Abstract:
1. A tray holding device comprising: a frame that defines a tray elevation area in which a tray containing workpieces can be lifted and lowered, the frame having an opening for allowing the workpieces to be taken in and out of the tray from above; a lower supporting member fixed to the frame so as to receive the tray carried into the tray elevation area in a first horizontal direction and support the tray; an elevation mechanism mounted to the frame so as to lift and lower the tray supported by the lower supporting member; and an upper supporting mechanism mounted to the frame so as to receive and support the tray lifted by the elevation mechanism from below and carry out the tray in a second horizontal direction, the second horizontal direction being opposite to the first horizontal direction, wherein the tray includes a lock mechanism for locking the workpiece contained therein, and the frame includes a release mechanism provided in a vicinity of the opening for releasing a lock state of the workpiece by the lock mechanism.