Running gear frame for a rail vehicle
AssigneeBombardier Transportation GmbH
InventorsGuido Bieker, Adrian Raczko, Paul Bottcher
Life of this patent
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Abstract
The present invention relates to a running gear frame for a rail vehicle, in particular, a rail vehicle having a nominal speed above 160 km/h, comprising a running gear frame unit (107) defining a longitudinal axis, a transverse axis and a height axis and comprising two longitudinal beams (108) and at least one transverse beam (110).
Claims20
A running gear frame for a rail vehicle, wherein the rail vehicle has a nominal speed above 160 km/h, comprising:
- a running gear frame unit comprising:
- (i) two longitudinal beams that extend along a longitudinal axis of the running gear frame unit and (ii) a transverse beam that extends along a transverse axis of the running gear frame unit, wherein a first of the two longitudinal beams comprises a longitudinal web section that extends in a web plane oriented perpendicular relative to the transverse axis, the transverse beam having a web joint part that is connected to the longitudinal web section to define a joint location, the transverse beam having a non-ring-shaped, open profile cross section adjacent to the joint location, the open profile cross section having a first free end and a second free end, and a connecting line between the first free end and the second free end that defines a transverse beam inner contour,
- wherein the longitudinal web section has an aperture located in a region of a transverse beam projection (TBP), the TBP being a projection of the transverse beam inner contour along the transverse axis onto the web plane, wherein the TBP defines a transverse beam projection area (TBPA);
- and
- wherein the aperture defines an aperture projection (AP), the AP being a projection of the aperture along the transverse axis onto the web plane, the AP having an outer contour that defines an aperture projection area (APA), the APA at least partially overlapping at least 60% of the TBPA.
A method for manufacturing a running gear frame for a rail vehicle a rail vehicle having a nominal speed above 160 km/h, the running gear frame comprising a running gear frame unit defining a longitudinal axis, a transverse axis, and a height axis, the running gear frame comprising two longitudinal beams and at least one transverse beam, each of the longitudinal beams extending along the longitudinal axis of the running gear frame unit, and the at least one transverse beam extending along the transverse axis of the running gear frame unit, the method comprising:
- connecting the at least one transverse beam to at least one of the longitudinal beams in an area of a joint location;
- positioning a longitudinal web section of the at least one of the longitudinal beams, at least in a region of the joint location, in a web plane that is oriented perpendicular relative to the transverse axis, a web joint part of the at least one transverse beam being connected to the longitudinal web section;
- and
- positioning an open structure element of the at least one transverse beam, at least in the region of the joint location, in a sectional plane that is oriented perpendicular relative to the transverse axis, the at least one transverse beam having an open, non-ring-shaped profile cross section;
- wherein the open profile cross section has a first free end and a second free end, wherein a transverse beam inner contour is defined by a connecting line between the first free end and the second free end and an inner circumference of the profile cross section between the first free end and the second free end, the longitudinal web section being provided with an aperture located in the region of a transverse beam projection (TBP), wherein the TBP is a projection of the transverse beam inner contour along the transverse axis onto the web plane, the TBP confining a transverse beam projection area (TBPA), the aperture defining an aperture projection (AP) that is a projection of the aperture along the transverse axis onto the web plane, wherein an outer contour of the AP defines an aperture projection area (APA), wherein the APA at least partially overlaps the TBPA and the APA at least partially overlaps at least 60% of the TBPA.
Dependencies are inferred from the claim text.