DE4332289A1 - Device for preventing rail vehicles from being pushed upwards as a consequence of an impact resulting from an accident - Google Patents

Abstract

The invention relates to a device for preventing rail vehicles being pushed upwards as a consequence of an impact resulting from an accident, by means of which device improvement in the protection against impact of persons in the passenger area of a rail vehicle is ensured. The device is designed in such a way that a guard block which protrudes out of the end wall and is operatively connected to components of the underframe of the vehicle is arranged above one of the two side buffers of the rail vehicle at a level above the upper edge of the side buffer, the said guard block having a lower, essentially horizontal impact space which is arranged so as to be capable of engaging over the upper edge of the buffer plate of the coupled rail vehicle when the buffer presses in fully and when the maximum permitted vertical offset occurs, and that the end wall of the rail vehicle has, on the side of the end wall lying opposite the guard block, an end wall region which the guard block is capable of penetrating with its end face in the event of one of the side buffers being lost or in the event of damage to the adjoining parts of the underframe of the vehicle, after a safety distance has been passed through. <IMAGE>

Description

The invention relates to a device for preventing Climbing freely adjustable in wagons and with Rail vehicles equipped with side buffers, in particular from Passenger cars, as a result of an accident caused by an accident.

To protect the vehicles from the consequences of an accident among other things the passenger coaches according to internationally binding Building regulations carried out. So z. B. the end walls of the Car bodies with ramming columns and be reinforced around the car bodies largely protect even when the impact energy the capacity of the buffer overwhelmed.

This security system is particularly at risk if the Impact to buffer or climb on the vehicles involved leads. In this case there is a risk of collapse the resistance of the structure of the car bodies considerably.

Shock devices (side and middle buffers) are known through their constructive design the emergence of the force components in the event of an impact, restrict those for climbing being able to lead. This affects e.g. B. the design of the curvature areas the buffer plate (DD-WP 212 929) and the use of Breakage or deformation elements (DE-OS 36 10 567 and 35 13 294). Furthermore, it is known to be particularly resistant Designing the bulkhead to improve vehicle protection. In the DE-PS 29 01 409 an end wall for a railroad car is proposed, which is provided with collision posts, which in turn both on the push-pull device and on special ones Roof racks are anchored.

Crash protection devices are also known (DE-PS 23 17 780; DE-OS 38 18 839 and 39 31 171), which are preferred for rail vehicles of the  Local transport were developed that do not have side buffers.

The disadvantage of these solutions is that they only reduce the risk of climbing or to limit damage after climbing already contributed.

The aim of the invention is to provide the one equipped with side buffers To design rail vehicles in the end wall area so that overbuffering or climbing as a result of an accident Impact prevented under conditions to be determined becomes a defined deformation at the same time as the impact the end area of the rail vehicle, in particular for Improvement of impact safety to protect people in the Passenger area of a rail vehicle is to be made possible.

The invention has for its object a device to create the kind mentioned at the outset, while avoiding the defects of the prior art so long as buffering prevented until the side buffers overloaded by the impact itself or as a result of deformation of the adjoining components of the vehicle undercarriage failed and the vertical relative movements the end walls of the colliding vehicles as a prerequisite of climbing prevented.

According to the invention the object is achieved in that above one of the two side buffers of the rail vehicle one from the Front wall protruding trestle is arranged, which is in operative connection with the vehicle base. Here is for freely adjustable rail vehicles binding the vehicle side to be determined. The trestle is positioned so that the full buffer stroke with the greatest permissible height offset of the vehicles in all operationally relevant lateral offset and / or angular positions are not hindered. Under these conditions the trestle does not penetrate the opposite one Vehicle front wall. Occurs on impact in the area of exhaustion the buffer stroke, on the other hand, force components which are used for The permissible height offset of the vehicles is exceeded with  the result of overbuffering or climbing, then the lower butt surface of the trestle obstructs the the upper edge of the upstanding buffer plate another erection of the opposite vehicle form-fitting and in relation to the other Buffer pair of the impact point using the torsional stiffness of the vehicles non-positively. If the Buffer or damage or deformation of the mutually exclusive Components of the vehicle chassis penetrate both safety racks the point of impact into the opposite of each other End walls and additionally hinder others vertical relative movements. For this purpose it is the Trap frame opposite end wall area designed so that under conditions to be determined vertical loads from the Structure of the car body can be included.

The invention is described in more detail below using an exemplary embodiment explained. The graphic representations show in

Figure 1 is a view of the device in plan view of the end wall of a passenger coach.

FIG. 2 shows a view of the device corresponding to FIG. 1 in a side view of a coupling point of two passenger coaches in contact with the buffer and without a height offset of the vehicles;

Figure 3 is a view of the device according to Figure 1 in the side view of a coupling point of two coaches in buffer contact and the largest allowable height offset of the vehicles..;

Fig. 4 is a view of the device corresponding to Fig. 1 in the side view of a coupling point of two passenger cars with full use of the stroke of the buffer and without height offset of the vehicles and

Fig. 5 is a view of the device corresponding to Fig. 1 in the side view of a coupling point of two passenger cars with full use of the stroke of the buffers and the largest permissible height offset of the vehicles.

In the area of the end wall 2 above one of the two side buffers 1 (in the exemplary embodiment the right side was selected as the buffer side to be determined), a safety catch 5 is arranged in such a way that it is in an operative connection 3 (not shown ) with components 4 of the vehicle undercarriage (in the exemplary embodiment with the head piece) stands. The arrangement height H over the upper edge 7 of the buffer plate 8 corresponds approximately to the largest permissible height offset h of the side buffers 1 of the coupled passenger coaches and is selected in connection with the distance a of the end face 10 of the trestle 5 from the front wall 2 of the passenger coaches so that the full buffer stroke s with the greatest permissible height offset h of the vehicles in all operationally relevant lateral offset and / or angular positions. When the buffer is fully depressed ( FIG. 4), a safety distance b is therefore present between the end face 10 of the trestle 5 and the end wall 2 of the opposite passenger coach. If, at or in the area of full buffer indentation, there is an additional height offset of the side buffers 1 ( FIG. 5), then this is limited when the largest permissible height offset h is reached in that the lower abutting surface 6 rests on the upper edge 7 of the buffer plate 8 of the opposite passenger coach and thus positively prevents further erection of the upright passenger car relative to the opposite vehicle. In the event of failure of the side buffers 1 overloaded by an impact or damage to the deformation of the adjoining components 4 of the vehicle undercarriage, the safety distance b is eliminated and the safety catches 5 can each penetrate into the end wall area 9 of the end wall 2 of the opposite passenger car. For this purpose, the end wall area 9 opposite the trestle 5 is designed such that it can withstand vertical loads. Furthermore, it is expedient to exclude the end wall area 9 up to a distance c to be determined within the passenger car for the stay of the travelers and to equip it with an energy consumption device known per se. When the device according to the invention is used on other rail vehicles, such as control cars and traction vehicles, the same functional relationships apply.

Reference list

1 page buffer
2 end wall
3 active connection
4 component
5 trestle
6 impact surface
7 top edge
8 buffer plates
9 end wall area
10 end face

H arrangement height

a distance
b Safety distance
c distance
s buffer stroke

Claims (3)

1. Device for preventing the climbing of rail vehicles as a result of an accident-related impact, characterized in that above one of the two side buffers ( 1 ) of the rail vehicle in an arrangement height (H) a protruding from the end wall ( 2 ) in operative connection ( 3 ) with Components ( 4 ) of the vehicle underframe standing safety catch ( 5 ) is arranged, which has a lower, essentially horizontal abutment surface ( 6 ), which at or in the area of full buffer indentation (s) when the greatest permissible height offset (h) has been reached, the upper edge ( 7 ) of the buffer plate ( 8 ) of the coupled rail vehicle is designed so that it can be overlapped and that the end wall ( 2 ) of the rail vehicle has an end wall region ( 9 ) on the side of the end wall ( 2 ) opposite the stop frame ( 5 ), into which the stop frame ( 5 ) with its end face ( 10 ) in the event of failure of the side buffer ( 1 ) or damage to the adjoining part e of the vehicle undercarriage is able to penetrate after a safety distance (b) has been overcome. 2. Device according to claim 1, characterized in that from the catch bracket ( 5 ) opposite end wall region ( 9 ) caused by the penetrated catch bracket ( 5 ) vertical loads can be absorbed in a defined manner. 3. Apparatus according to claim 1, characterized in that the arrangement height (H) between the upper edge ( 7 ) of the buffer plate ( 8 ) and the abutment surface ( 6 ) of the trestle ( 5 ) approximately the largest permissible height offset (h) of the side buffer ( 1 ) is dimensioned accordingly.