Conveying roller apparatus

Details Conveying roller apparatus Conveying roller apparatus

1989-05-18

1990-07-24

Valenza, Joseph E.

Conveyors: power-driven

Conveyor section

Live roll

B65G 1306

Patent

active

049429574

ABSTRACT:
A conveying roller device having holding locations for the material to be transported in which switch bars (4) extend above the supporting rolls (2) which are mounted between side plates (1) and are driven at the holding positions A, B and C by the drive belt (3). Drive belt (3) is pressed by the belt rolls (5), in raised position, against the supporting rolls (2). Holding position A is the frontmost holding position of the conveying device and switch plate (10A) thereof has been brought into preparatory position by an external control element in the form of a valve or limit switch, i.e. the external control element has, in a pneumatic or electrical logic circuit, created the prerequisite for the holding process which is to take place. This prerequisite can also be established in that a switch bar (4) has been displaced by a piece of material to be transported at a second holding position in front of a first holding position A. Switch bar 4 is developed as two-armed lever and actuates a control element (8) with the lower end (4a) thereof. The control element (8) is also connected to the logic circuit (15) via control lines (14).

REFERENCES:
patent: 3420355 (1969-01-01), De Good et al.
patent: 4609098 (1986-09-01), Morgan et al.
patent: 4854445 (1989-08-01), Eaton et al.

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