Transport apparatus for transporting continuously arriving flat

Details Transport apparatus for transporting continuously arriving flat Transport apparatus for transporting continuously arriving flat

1988-10-19

1991-01-08

Skaggs, H. Grant

Sheet feeding or delivering

Delivering

By endless conveyor

271 82, 271277, 1988039, 101408, 294 991, 2941031, 294902, B65H 2904

Patent

active

049829440

ABSTRACT:
Individually controllable gripper elements are successively spacedly arranged at a ball-and-socket joint-link chain revolvingly driven and guided in a guide channel. At the leading end region of an overhang member of each gripper element there is seated a clamping jaw and at the trailing end region there is arranged a bushing. A shaft is rotatably and displaceably mounted within the bushing. A clamping finger, coactable with the clamping jaw, is rigidly connected with the upper shaft end. At the lower shaft end there is seated a slide shoe and the lower end region of the shaft is encircled by a pivotable element rotatably connected with the shaft. A compression spring rigidly bears for rotation at the pivotable element and the overhang member. When the slide shoe travels onto a stationary cam the clamping finger is raised against the force of the compression spring. An actuation element, which acts upon a further slide shoe, rotates the clamping finger through an angle of about 90.degree.. In this position the slide shoe at the lower end of the shaft travels off the stationary cam, resulting in the clamping finger bearing upon the clamping jaw. Since the compression spring is pre-biased in the direction of the open position of the clamping finger the latter can pivot back into the open position by slightly raising the slide shoe at the lower end of the shaft.

REFERENCES:
patent: 3671035 (1972-06-01), Reist
patent: 3955667 (1976-05-01), Muller et al.
patent: 4381056 (1983-04-01), Eberle
patent: 4448408 (1984-05-01), Faltin
patent: 4512457 (1985-04-01), Reist et al.
patent: 4799664 (1989-12-01), Burger
patent: 4893805 (1990-01-01), Eberle

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