| 摘要 |
<p>An apparatus (10) for inverting the spatial orientation of sheet material (16) from a desired input to a desired output orientation. The apparatus includes a cage assembly (20), a torque drive mechanism (40) operative to rotate the cage assembly about a rotational axis (RA) and a sheet conveyance mechanism (50) mounting to the cage assembly (20) for conveying sheet material along the rotational axis of the cage assembly. The torque drive mechanism is adapted to assume input and output positions about the rotational axis wherein each position corresponds to the desired input and output orientations of the sheet material. The sheet conveyance mechanism is, further, adapted to: (i) receive sheet material when the cage assembly is in the input position, (ii) eject sheet material when the cage assembly is in the output position and (iii) retard the movement of the sheet material in response to rotation of the cage assembly by the torque drive mechanism.
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