Patent ID: 8151715
Filing Date: 2012-04-10
Classification: B61D

Abstract:
1. An automatic lock for a mobile step designed to allow passengers to get on and off a railway car, comprising a device located in lower bodywork of a railway car and enclosed inside a protective guard positioned below a bracket of a fixed step, on below an outer edge of which the mobile step is hinged, and in which the fixed step is activated by a connecting rod to move from a lowered position to a raised position and vice versa, wherein the end of the connecting rod, opposite below a pin coupling it to the fixed step, is in turn hinged to a carriage equipped with bearings which slide inside a shaped guide, and in that the carriage is attached to a second bracket, which is equipped with a rack edge engaging with a toothed pinion which is fixed on a lower end of a stabiliser shaft which provides the opening or closing thrust of doors of the railway car and transforms the sliding of the carriage into an angular movement of the fixed step.