DEVICE FOR INHIBITING SELECTION OF ONE OR MORE OPERATIVE POSITIONS OF A SELECTOR OF AN AUTOMATICALLY OPERATED GEARBOX, FOR EXAMPLE A PARKING POSITON

摘要

Described herein is a selector for an automatically operated gearbox, the selector including: a casing; a control member mounted within said casing in an oscillating manner around a first axis of rotation, the control member being movable through a plurality of operative positions associated to respective operating conditions of the gearbox; a prevention device of the selection of an undesired operative position of said selector, wherein the prevention device includes a rocker mounted within said casing in a rotatable manner around a second axis of rotation; said rocker being operable in rotation around said second axis of rotation by an actuator member between a resting position and a working position in which it is configured to inhibit the selection of said undesired operative position. The prevention device is configured for enabling, in certain conditions, selection of the undesired operative position even when it is currently inhibited.

主权项

1. A selector for an automatically operated gearbox, the selector including:
a casing, a control member mounted within said casing in an oscillating manner around a first axis of rotation, the control member being movable through a plurality of operative positions associated to respective operating conditions of the gearbox, a prevention device of the selection of an undesired operative position of said selector, wherein the prevention device includes a rocker mounted within said casing in a rotatable manner around a second axis of rotation, said rocker being operable in rotation around said second axis of rotation by an actuator member between a resting position and a working position in which it is configured to inhibit the selection of said undesired operative position, the selector being characterized in that said rocker includes a first portion and a second portion, wherein the first portion is connected to the actuator member and wherein in the working position of the rocker the second portion is configured to block said control member upon an occurrence of a selection manoeuvre of said undesired operative position so as to inhibit the selection thereof, and in that the first portion and the second portion are coupled to one another by an articulated joint configured to enable a rotation of said second portion relative to said first portion upon exceeding of a predetermined value of an actuation force applied to said control member during said selection manoeuvre of said undesired position, thereby allowing said control member to override the block provided by the second portion, and accordingly enable the selection of said undesired operative position currently inhibited.