Gripper bar for gripping sheet-like material within a machine to

Details Gripper bar for gripping sheet-like material within a machine to Gripper bar for gripping sheet-like material within a machine to

1991-03-22

1992-06-30

Olszewski, Robert P.

Sheet feeding or delivering

Delivering

By endless conveyor

1988038, B65H 2504

Patent

active

051256401

ABSTRACT:
A gripper bar fitted on drive chains and destined to grip and carry plate shaped sheets of material through printing, cutting and similar machines to produce a package characterized by the bar including a hollow profile on which the grippers are fastened. Every gripper consists of a flat spring attached at one end to a leading edge wall of the bar and having the other free end taking a rest position engaging a gripper counterpart which is situated on the trailing edge of the bar. The flat spring has a length greater than the width of the bar and passes through the bar before reappearing through a window on the trailing edge of the bar.

REFERENCES:
patent: 2418065 (1941-09-01), Bobst
patent: 2867275 (1959-01-01), Laufer
patent: 3960264 (1976-06-01), Carbine et al.
patent: 4526100 (1985-07-01), Brasa
patent: 4629176 (1986-12-01), Ceelen

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