Abstract: In a feed device (1) for a perfect binder, it is proposed that the conveying device (30) features at least one clamping carriage (31.1 . . . 4) that takes hold of sheet stacks (2) that were aligned in the vibrator device (5) and stand on the block spine (2 a) laterally on the block spine (2 a) by means of clamping strips (33.1, 33.2) and supports the block spine (2 a) on supporting plates (32), wherein this clamping carriage receives the sheet stacks from an inclined designated position (21) and horizontally transfers said sheet stacks to the book block conveying device. The sheet stacks (2) are no longer pushed into the perfect binder through a channel, but rather transported by the clamping carriage (31.1 . . . 4) in a laterally clamped fashion.

Abstract: In a feed device (1) for a perfect binder, it is proposed that a vibrator device (5) features at least one first vibrating plate (6.1) that is inclined relative to the horizontal line and on which the sheet stacks (2) are aligned while they stand on first sheet edges (2 a) and second sheet edges (2 b) contact an aligning element (6.2) that is stationarily arranged in a plane lying perpendicular to the first vibrating plate (6.1), and that a conveying device (30) is realized in the form of a clamping conveyor (30, 31.1 . . . 4) for receiving aligned sheet stacks (2) from an inclined, stationary position (21) in the vibrator device (5) and for synchronously, positively transferring (22) said sheet stacks to the continuously driven book block conveying device with the block spine (2 a) positioned horizontally.