Bombardier Transportation Gmbh

Heinz Klamka

Andreas Kelbel

Jan Prockat

Marcel Neumann

Oliver Muller

Thomas Künzel

Klaus-Dieter Franze

Oliver Müller

The invention relates to a retractable step arrangement for a rail vehicle with a first housing that can be mounted on a body of the rail vehicle and features a first housing opening, with a step that is movably supported in the first housing in an initial position and can be displaced between the initial position and a final position, in which the step at least sectionally protrudes from the first housing, through the first housing opening, and with a drive unit for the step that features a motor and at least one movable connecting means that transmits a motion generated by the motor to the step. The retractable step arrangement provides a separate second housing, in which the drive unit is arranged, wherein the interior of the first housing is spatially separated from the interior of the second housing.

Retractable step arrangement for a rail vehicle

The invention relates to a railway vehicle with a self-supporting car body having a floor and a roof as well as side walls which present windows and access areas. The side walls are each made of a frame which is rigidly connected to the floor and presents side wall elements. The car body skin elements are configured in a supporting manner and fixed to frame elements ( ) by friction so as to form a ribbed plate support structure ( ). The car body skin elements comprise an integrated intermediate layer ( ) having vibration-damping properties. Frictional adhesive joints ( ) or frictional screw or rivet joints ( ) between the frame elements ( ) and supporting car body skin elements can be provided for. The supporting car body skin elements are configured as supporting sandwich elements ( ) which consist of an outer layer ( ), an inner layer ( ) and an intermediate layer ( ) which has heat- and/or sound-insulating and vibration-damping properties and maintains the outer and inner layer at a distance from each other.

Railway vehicle with self-supporting car body

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Hennigsdorf, Germany

Heinz Klamka