Improved device for automatic extraction of a drawer, in particular a supply drawer for a household applicance such as washing machine

摘要

A device (1), for automatic extraction of a supply drawer (e.g. a detergent drawer) (2) from an electric household appliance, includes a releasable locking device (10) for releasably locking the drawer; elastic means (11) for pushing the drawer into an extracted position; braking means (12) for opposing movement of the drawer; a support (13) housing the elastic means and the braking means; and a toothed pinion (14) fitted idly to the support, which is designed to leave at least one given circumferential portion of the teeth of the pinion exposed; the elastic means are designed to exert a torque in a given direction on the pinion, which is connected angularly integral with the braking means; the support and the releasable locking device are so designed that the exposed circumferential portion of the pinion teeth meshes selectively with a straight (15) or curved (18) rack, formed externally on a bottom or end wall of the drawer, by simply rotating the support (13) with respect to the drawer, so that the same device can be used for both slide-out (2a) and swing-out (2b) drawers.