Patent ID: 6247580
Filing Date: 2001-06-19
Classification: B65G

Abstract:
An actuator device for use in a bi-directional conveyor belt (3), wherein the actuator device can assume two different positions depending on the belt's transport direction (P.sub.1), characterized in that it comprises a rotatable timing wheel (9) in abutment against the belt (3) for absorbing rotational movement (R.sub.1) depending on the belt's transport direction (P.sub.1), and a rotation transfer device (10) for transferring the timing wheel's rotational movement (R.sub.1) to a toothed wheel (11) which is engaged with a toothed rack (12) on a toothed element which is movable between two extreme points for implementing an activating function, and that at each end portion (14) the toothed element (13) has a pin (15) which, when a force is applied by the toothed wheel (11) to the pin and that force includes a force component in the direction of a first end (16) of the toothed element, moves to a position in which it forms a tooth as an extension of the toothed rack (12), and when a force is applied by the toothed wheel (11) to the pin and that force includes a force component in the direction of a second opposite end (16') of the toothed element, moves to a retracted, yielding position relative to the toothed rack (12).