Patent ID: 7849962

Claim:
A rail vehicle step for releasably mounting to a sill step of a rail vehicle, the rail vehicle comprising a body, wheels for supporting the body for movement along rails, and a ladder rung arrangement mounted on the body, the sill step mounted beneath the body, inward of the ladder rung arrangement, the rail vehicle step comprising: a plank grating having a width and a length, the length dimensioned so that the plank grating extends outward beyond the side of the body of the rail vehicle so that a rail worker can stand on the plank grating and hold onto the ladder rung configuration, the plank grating having a bottom and comprising an inverted generally U-shaped cross-section comprising a top and opposing sides, each of the sides having a bottom and an inwardly rolled lip along the bottom of each of the sides, a block of material extending in the width direction of the plank grating and inserted in one end of the plank grating, within the top, the opposing sides and the inwardly rolled lips thereof, the block of material mounted to the inwardly rolled lips of the plank grating, a hook mounted to the block of material at an end of the plank grating, the hook comprising an L-shaped member having a first leg mounted to the block of material and a second leg extending beneath the end of the plank grating, in spaced relation to the bottom of the plank grating in order to provide space between the plank grating and the second leg to receive the rail vehicle sill step therebetween, a bar extending in the width direction of the plank grating, substantially parallel to the hook, the bar mounted in sliding relation to the inwardly rolled lips along the bottom of both of the sides of the plank grating, and one or more fasteners for releasably holding the bar in fixed relation to the plank grating and in close proximity to the hook to retain the sill step in the hook, and wherein each of the inwardly rolled lips have slots therein that extend the length direction of the plank grating, the bar mounted in relation to sliding blocks provided above each of the inwardly rolled lips by the fasteners, the fasteners extend from the sliding blocks through the slots and further through holes in the bar, wherein the fasteners are threaded and the bar is releasably held in fixed relation to the plank grating by wing nuts that are tightened onto the threaded fasteners.