Underframe for a Rail Vehicle Car Body

Abstract

An underframe for a rail vehicle car body includes a plurality of longitudinal support members oriented in the longitudinal direction of the underframe, and at least one transverse support member which, in the fitted position is oriented perpendicular to the longitudinal support members, wherein the longitudinal support members each have an opening at the level of the mounting position of the transverse member through which the transverse member can be inserted.

Claims

1.-6. (canceled)

7. An underframe for a rail vehicle car body, comprising: a plurality of longitudinal support members oriented in a longitudinal direction of the underframe; and at least one transverse support member, which in the fitted position is oriented perpendicularly to the longitudinal support members; wherein each longitudinal support member of the plurality of longitudinal support members includes, at an assembly position of the at least one transverse support member, an opening through which the at least one transverse support member is insertable.

8. The underframe for a rail vehicle car body as claimed in claim 7, wherein the at least one transverse support member is rotatable about its longitudinal axis in openings; and wherein the at least one transverse support member is at a final assembly position after completion of a rotary movement.

9. The underframe for a rail vehicle car body as claimed in claim 8, wherein the at least one transverse support member comprises grooves which are positively connected to the plurality of longitudinal support members in the final assembly position.

10. The underframe for a rail vehicle car body as claimed in claim 7, wherein the transverse support member is formed as a metal profile with a z-shaped cross section.

11. The underframe for a rail vehicle car body as claimed in claim 8, wherein the transverse support member is formed as a metal profile with a z-shaped cross section.

12. The underframe for a rail vehicle car body as claimed in claim 9, wherein the transverse support member is formed as a metal profile with a z-shaped cross section.

13. The underframe for a rail vehicle car body as claimed in claim 7, wherein each longitudinal support member of the plurality of longitudinal support members is connected to the at least one transverse support member via a welding process at points of intersection with said at least one transverse support member.

14. The underframe for a rail vehicle car body as claimed in claim 8, wherein each longitudinal support member of the plurality of longitudinal support members is connected to the at least one transverse support member via a welding process at points of intersection with said at least one transverse support member.

15. The underframe for a rail vehicle car body as claimed in claim 9, wherein each longitudinal support member of the plurality of longitudinal support members is connected to the at least one transverse support member via a welding process at points of intersection with said at least one transverse support member.

16. The underframe for a rail vehicle car body as claimed in claim 10, wherein each longitudinal support member of the plurality of longitudinal support members is connected to the at least one transverse support member via a welding process at points of intersection with said at least one transverse support member.

17. The underframe for a rail vehicle car body as claimed in claim 7, wherein a plurality of transverse support members is provided which each extend over a width of the underframe; and wherein each end of the transverse support member of the plurality of transverse support members is connected to a lateral longitudinal support member on each side.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0012] By way of example, in the drawings:

[0013] FIG. 1 shows an underframe, first assembly step in accordance with the invention;

[0014] FIG. 2 shows the underframe, second assembly step in accordance with the invention;

[0015] FIG. 3 shows the underframe, third assembly step in accordance with the invention;

[0016] FIG. 4 shows the underframe with lateral longitudinal support member in accordance with the invention;

[0017] FIG. 5 shows an aperture with a transverse support member in accordance with the invention;

[0018] FIG. 6 shows an aperture with a transverse support member in the final assembly position in accordance with the invention; and

[0019] FIG. 7 shows a detailed view of the underframe in accordance with the invention.

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS

[0020] FIG. 1 schematically shows an exemplary underframe during a first assembly step of a transverse support member. It illustrates a section of an underframe 1, which is constructed as a typical lattice structure consisting of longitudinal support members 2, transverse support members 3 and two main transverse support members 5. The section between the two main transverse support members 5 is shown, in which four longitudinal support members 2 extend in parallel between the main transverse support members 5 in the longitudinal direction of the underframe 1. Arranged in this section are four transverse support members 3, which extend perpendicularly to the longitudinal direction of the underframe 1. Three of the transverse support members 3 are in their final assembly position, and one transverse support member 3 is situated next to the underframe 1 and is ready to be brought into its final assembly position.

[0021] The longitudinal support members 2 are provided with apertures 4, through which a transverse support member 3 can be inserted. These apertures 4 are dimensioned such that a transverse support member 3 can only be introduced into the aperture 4 in a position in which it is rotated with respect to the final assembly position. The transverse support members 3 have grooves 6 in the form of elongate depressions, which are structured to engage in the longitudinal support members 2. The distances between the grooves 6 correspond to the intended distance between the longitudinal support members 2, and therefore they simultaneously also determine the distances between the longitudinal support members 2 during the mounting of the transverse support members 3. As a result, special auxiliary devices for the exact alignment and spacing of the longitudinal support members 2 can be dispensed with.

[0022] FIG. 2 schematically shows an exemplary underframe during a second assembly step of a transverse support member. The underframe 1 from FIG. 1 is illustrated, where the transverse support member 3 located outside the underframe 1 in FIG. 1 is now introduced into the apertures 4 of the longitudinal support members 2. The apertures 4 are shaped such that the strength of the longitudinal support members 2 is weakened as little as possible, and in this case they have a contour line such that the longitudinal support member 3 can only be introduced in a position in which it is rotated with respect to its final assembly position. With a rotary movement 8, a transverse support member 3 introduced in this way is subsequently brought into its final assembly position. Simultaneously with this rotary movement 8, the grooves 6 engage in the longitudinal support members 2.

[0023] FIG. 3 schematically shows an exemplary underframe during a third assembly step of a transverse support member. In this third assembly step, the transverse support member 3 is rotated into its final assembly position and connected positively to the longitudinal support members. Thus, the position of the longitudinal support members 2 relative to the transverse support members 3 is given and the components mentioned can be firmly connected to one another, for which purpose a welding process is expediently to be used.

[0024] FIG. 4 schematically shows an exemplary underframe with lateral longitudinal support members. In a further continuation of the production of an underframe, as shown in FIGS. 1 to 3, the use of lateral longitudinal support members 7 can be envisaged. These lateral longitudinal support members 7 increase the stability of the underframe 1 and facilitate the further assembly of a car body based on the underframe 1, in particular by simplifying the mounting of side walls. In the exemplary illustrated embodiment, the lateral longitudinal support members 7 extend along the lateral boundary of the underframe 1 between the two main transverse support members 5 and connect the ends of the transverse support members 3.

[0025] FIG. 5 schematically shows an exemplary aperture with a transverse support member. A view of a longitudinal support member 2 with an aperture 4 is illustrated, where a transverse support member 3 is introduced into this aperture 4. The transverse support member 3 is structured as a metal profile with a z-shaped cross section and is provided with grooves 6. The section through the transverse support member 3 is shown by a groove 6, where the depth of this elongate notch is visible.

[0026] FIG. 6 schematically shows an exemplary aperture with a transverse support member in the final assembly position. The example from FIG. 5 is illustrated, where the transverse support member 3 has been rotated into its final assembly position. The grooves 6 engage in the web of the longitudinal support member 2 and produce a positive connection to the latter.

[0027] FIG. 7 schematically shows an exemplary underframe in a detail view. The underframe 1 from FIGS. 1 to 4 is illustrated in a detail view of a point of intersection between a longitudinal support member 2 and a transverse support member 3, where the transverse support member 3 is still to be moved into its final assembly position via a rotary movement 8.

[0028] Thus, while there have been shown, described and pointed out fundamental novel features of the invention as applied to a preferred embodiment thereof, it will be understood that various omissions and substitutions and changes in the form and details of the devices illustrated, and in their operation, may be made by those skilled in the art without departing from the spirit of the invention. For example, it is expressly intended that all combinations of those elements which perform substantially the same function in substantially the same way to achieve the same results are within the scope of the invention. Moreover, it should be recognized that structures and/or elements shown and/or described in connection with any disclosed form or embodiment of the invention may be incorporated in any other disclosed or described or suggested form or embodiment as a general matter of design choice. It is the intention, therefore, to be limited only as indicated by the scope of the claims appended hereto.