Patent · US Active

Retractable step arrangement for a rail vehicle

US9221474B2 · kind B2 · utility

0Cited by

3References

19Claims

0Family size

Assignee

Bombardier Transportation GmbH · DE

Inventors

Heinz Klamka · Hennigsdorf, DE
Oliver Müller · Paderborn, DE
Andreas Kelbel · Berlin, DE
Marcel Neumann · Berlin, DE

Key dates

Filing date	Dec 6, 2012
Grant date	Dec 29, 2015
Priority date	—
Expiry date	Jun 1, 2033

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB61D23/025
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.