DE4005287A1 - Structural beam in long goods wagon - replaces wooden floor in central section to allow increased beam depth - Google Patents

Abstract

Long goods wagons are normally made with wooden floors which are supported on longitudinal beams. In order to provide a middle beam of the necessary strength to carry the load imposed on the wagon floor the depth of the beam at is mid-point must be as great as possible without reducing the necessary ground clearance of the wagon. This problem is overcome by shaping the longitudinal beam (1) so that the upper flange over the middle part of the beam forms the wagon floor. The depth of the beam is thus increased without reducing the wagon ground clearance. USE/ADVANTAGE - Elongated railway goods wagon with longitudinal structural beams of max length in centre section.

Description

The invention relates to a medium-length beam, in particular for long freight wagons with wooden floors without load-bearing Sidewalls.

Long freight wagons without load-bearing side walls exist the requirement of the available beam height by a flat optimal use of the belly-like design of the straps. On the other hand, in the case of long freight cars, when driving on Ramps, drainage piles and flaps provide ground clearance in the loading area limited the middle of the car, so that with long goods with their great bending moment in the middle of the car lower beam height is available than with short carriages.

External long girders are known, in terms of their overall height to maintain the required ground clearance when ramping ten in the middle of the car due to a curvature of the lower flange are reduced upwards.

This version has the disadvantage of being very material-intensive Long girders in the middle of the wagon, which increases costs and reduces the payload on the freight wagon.

The arrangement of external long beams allows one large floor design, but has the disadvantage that the vehicle boundary profile to a lower beam height leaves than in the arrangement of medium-length beams.

The aim of the invention is largely the same of a continuous wooden floor is the weight of the base stells to reduce and thus the transport economy of this To improve vehicles.

The invention has for its object medium-length beams assign a specific together with the wooden floor Have design.

According to the invention the object is achieved in that the tellang beams in the area between the main cross beams  is designed like a fish-bellied top and bottom, the The upper edge of the fish belly lies in the level of the upper edge of the floor and one on the transition surfaces of the upper fish belly Wood flooring delimiting in the level of the top edge of the floor angled cap is arranged.

The top chord of the medium-length girder can be used for Securing the load, especially lashing openings point.

The solution according to the invention is used for the areas of maximum bending stress beam height obtained which is a parallel Execution of the upper and lower belts and thus the Dead weight and the manufacturing effort of the medium long beams ring holds.

The invention is illustrated below using an exemplary embodiment explained in more detail.

In the accompanying drawings:

Fig. 1 a according to the invention designed Medium carrier, in which the upper fish belly in the loading area of the maximum bending moment is arranged,

Fig. 2 is a according to the invention designed Medium carrier in which the upper fish belly up to the area of the bogie clearances he stretches,

Fig. 3 is a plan view of a freight wagon in FIG. 2.

As can be seen from the drawings, the central longitudinal beam 1 is arranged between the main cross beams 2 and 2 '.

The main cross member 2 and 2 'and areas of the medium-long carrier 1 are arranged below a continuous wooden floor 3 .

In the area of the middle 4 of the wagon, the wooden floor 3 is replaced by the fish-belly shaped upper flange 5 of the medium-length girder 1 , the upper edge of the fish belly 6 coinciding with the level of the upper edge of the floor 7 . The wooden floor 3 is delimited by a cap 10 on the transition surface 8 of the upper fish belly 9 .

The cap 10 is abge angles 7 in the plane of the upper edge of floor and, together with the wooden floor 3 and the top flange 5 is a planar floor level. 7

In Fig. 1, the upper fish belly 9 is of shorter length than the lower fish belly 11 , so that the continuous wooden floor 3 is preserved up to the area of the middle 4 of the carriage.

In Fig. 2, the upper fish belly 9 extends into the loading area of the bogie, whereas the lower fish belly 11 is arranged in the area of the middle of the carriage 4 . This version is particularly advantageous when large bogie spaces are required.

The solution according to the invention, particularly in the case of long goods wagons with a wooden floor, keeps the dead weight and the manufacturing outlay of the medium-length beams 1 low, thus achieving a high level of transport economy.
Reference symbol list:

1 medium long beam
2; 2 ' main cross member
3 wooden floors
4 middle of car
5 top chord
6 upper edge of fish belly
7 top edge of floor
8 transition surface
9 upper fish belly
10 cap
11 lower fish belly
12 lashing openings

Claims (2)

1. Medium-length girder, in particular for long freight wagons with wooden floors without supporting side walls, characterized in that the medium-long girder ( 1 ) in the area between the main cross girders ( 2 ; 2 ') is designed like a fish-bellied top and bottom, the fish-bellied top edge ( 6 ) lies in the plane of the upper edge of the floor ( 7 ), and that on the transition surfaces ( 8 ) of the upper fish belly ( 9 ) there is an angled cap ( 10 ) which delimits the wooden floor ( 3 ) in the plane of the upper edge of the floor ( 7 ). 2. Medium-length beam according to claim 1, characterized in that the upper flange ( 5 ) of the medium-length beam ( 1 ) has lines for securing the cargo, in particular lashing openings ( 12 ).