Device for controlling the actuation of gripping means in a sheet assembling apparatus

摘要

A device for controlling the actuation of gripping means provided in a sheet assembling apparatus includes stationary and rotatable cam plates each having different and predetermined profiles, the rotatable cam plate being mounted eccentrically relative to the axis of the sheet collecting cylinder provided for the apparatus. The gripping means includes a follower roll in rolling engagement with the peripheral edge of the stationary cam plate to effect actuation of gripping fingers. The rotatable cam plate rotates together with the cylinder although it is capable of being shifted relative thereto about the cylinder axis whereby to prevent actuation of the gripping means as the follower roll engages at least one portion of the rotatable cam plate which may be shifted to overlie a cam portion of the stationary cam plate.