Printing press including improved gripper assembly

Printing – Work supporting members – Grippers

Patent

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Details

271 82, 271277, B41F 130

Patent

active

053968425

ABSTRACT:
A gripper assembly is provided for use within a printing press having an impression cylinder and one or more printing stations. The gripper assembly includes a main shaft, gripper clamp arms mounted to the shaft, and gripper blocks mounted to the shaft in alternating sequence with the gripper clamp arms. Each of the gripper blocks includes a projection overlying a portion of the adjoining gripper clamp arm. A spring is positioned between each projection and adjoining gripper clamp arm for urging the gripper blocks about the axis of the shaft. A gripper is mounted to each of the gripper blocks. Each gripper has a generally flat, Z-shaped body, one end of which is adapted for engaging a sheet of paper. The main shaft is coupled to a cam follower for causing rotation of the main shaft, thereby opening or closing the set of grippers.

REFERENCES:
patent: 2599776 (1952-06-01), Peyrebrune
patent: 3926118 (1975-12-01), Preuss
patent: 4014261 (1977-05-01), Becker
patent: 4101122 (1978-07-01), Jeschke et al.
patent: 4375190 (1983-03-01), Quinci et al.
patent: 4448125 (1984-05-01), Kawaguchi et al.
patent: 4475459 (1984-10-01), Wanke et al.
patent: 4718342 (1988-01-01), Raab et al.
patent: 4815379 (1989-03-01), Becker et al.
patent: 4947748 (1990-08-01), Hiltwein et al.
patent: 5199757 (1993-04-01), Simeth

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