EP3863906B1 - Anti-climber device for a rail vehicle - Google Patents

Description

technical field

The invention relates to an anti-climb device for a rail vehicle.

State of the art

In the event of a head-on collision of rail vehicles, the collision forces that occur should be introduced into the assemblies that are designed to absorb and convert the collision energy into deformation energy.

These are typically designed as so-called energy-absorbing elements, which can be deformed over a certain deformation path and have a force-displacement characteristic specially designed for this purpose. If the energy absorption capacity of such elements is exhausted, further collision energy is introduced into the vehicle structure. It should be noted that the underframe of a rail vehicle is much more solid than all other assemblies, especially the side walls, end walls and the roof. In the course of a collision between two rail vehicles, one of the rail vehicles may move in such a way that its undercarriage is slid over the undercarriage of the other vehicle (ie it climbs on top of it), thereby imparting collision energy to the much less rigid area above the undercarriage. This can easily happen with a vertical offset of the colliding vehicles and potentially leads to catastrophic consequences of the accident, since the passenger compartment of one of the vehicles can be extensively destroyed. In order to prevent this effect, so-called anti-climbing devices (anti-climbers) are used, which hold the vehicles in their vertical position relative to one another in the event of a collision. These anti-climbers are typically provided at those points on the vehicles which first encounter another vehicle and comprise a panel having a horizontally oriented rib structure. In the event of a collision, these rib structures of the anti-climbing devices that meet engage in one another and form a positive connection, which prevents the anti-climbing devices from sliding vertically relative to one another. However, if the anti-climbing devices that meet each other show a horizontal displacement relative to one another, i.e. the anti-climbing devices only partially overlap in the lateral direction, the resulting moments can twist the fastenings of the anti-climbing devices in such a way that the anti-climbing devices slide laterally against each other and consequently lose their effectiveness. This can occur in particular when the surface of the anti-climbing device designed with a rib structure has relatively small dimensions and a horizontal offset has a correspondingly greater effect. To remedy this deficiency, baffle plates were created which allow full-surface interlocking but can only act with similar baffle plates and which are expensive to produce. Baffle plates are known from the prior art, which should offer improved interlocking with one another. So is in the Chinese utility model CN203766810U one Climbing protection device with a baffle plate and formations arranged thereon disclosed, both the base of the baffle plate and the formations are equipped with a tooth structure, so that when they meet, a horizontal sliding of the anti-climbing devices is prevented.

Presentation of the invention

The invention is therefore based on the object of creating an anti-climbing device which prevents lateral slipping even if it hits another anti-climbing device in a horizontal manner.

The object is achieved by an anti-climbing device with the features of claim 1. Advantageous configurations are the subject of subordinate claims.

According to the basic idea of the invention, an anti-climbing device for a rail vehicle is described, which comprises an impact plate with a plurality of protruding formations, the course of the formations in the installed position of the anti-climbing device being formed as a polygon with a repeating sequence of sections rising and falling relative to the horizontal. and wherein the extension of the formations over the face of the impact pad follows a traverse with a repeating sequence of ascending and descending sections.

As a result, the advantage can be achieved of being able to ensure reliable interlocking of the formations with one another even when two anti-climbing devices according to the invention strike laterally (horizontally) offset, thereby preventing the impact plates from sliding off one another.

According to the invention, an anti-climbing device is constructed, which includes an impact plate with formations. Impact plates are known from the prior art, and they are equipped with formations (ribs) that are aligned horizontally when the anti-climbing device is installed. According to the present invention, these formations are to be designed as a polygon with a repeating sequence of rising and falling sections, so that when they meet a similar impact plate, the rising and falling sections of the formations interlock with one another. In this way, the baffle plates cannot slide off one another and thus do not lose their effectiveness.

As a result of the effect of the present anti-climbing device, the functions of any energy absorption devices that may be present are also retained. The interlocking of the impact plates of the other parties involved in the collision causes the energy absorbing devices to be continuously subjected to the collision force in the intended spatial direction. If, on the other hand, the baffle plates were to slide off one another, an energy-absorbing element located behind them could no longer oppose a defined resistance.

The anti-climbing device according to the invention comprises a baffle plate which, for example, rectangular or can be designed square and which is used to connect the anti-climbing device to the vehicle structure behind it. This can be done, for example, by means of a welded connection or also detachably by means of a screw connection.

The impact plate is provided with a plurality of formations which extend from the impact plate in the opposite direction to the vehicle structure and which are designed like ribs. The formations follow a course which alternately has rising and falling sections. This profile is therefore essentially sawtooth-like, optionally also with inserted horizontal sections. These optional horizontal sections are to be dimensioned significantly shorter than the ascending or descending sections.

The height of the ribs, ie the extent of the formations over the surface of the baffle plate, follows a polygon with a repeating sequence of rising and falling sections. The height of the ribs is thus variable over their course and follows a sawtooth-like course.

A plurality of formations are to be provided on the baffle plate, which are aligned horizontally when the baffle plate is installed. The sequence of the rising and falling sections is preferably to be aligned in such a way that the minima and maxima of the course of all formations are each arranged on a line which is arranged vertically in the installed position.

In this way, according to a preferred embodiment, the formations can each consist of identical courses, so that in a front view all lofts are parallel to each other and equally spaced. A further preferred embodiment provides for the course of two adjacent formations to be mirror images of one another.

The anti-climbing device can be made of all metallic materials that are customary for anti-climbing devices. In particular, steel and aluminum alloys can be used for this purpose.

An anti-climbing device according to the invention can be used at all positions of a rail vehicle front, in particular at those positions which, in the event of a collision, are the first to come into contact with a collision opponent. The arrangement in the middle of the vehicle used in some vehicles is also possible.

A further advantage of the present anti-climbing device is that it also works when it hits conventional anti-climbing devices equipped with rectilinear formations, with full protection against vertical climbing being provided.

Brief description of the drawings

• Fig.1 Aufkletterschutzeinrichtung, Ansicht von vorne.
• Fig.2 Aufkletterschutzeinrichtung, Schrägansicht.
• Fig.3 Aufkletterschutzeinrichtung, Schrägansicht von unten.

Examples show:

• Fig.1 Climbing protection device, front view.
• Fig.2 Climbing protection device, oblique view.
• Fig.3 Climbing protection device, oblique view from below.

implementation of the invention

Fig.1 shows an example and schematic of a climbing protection device in a view from the front. In this exemplary embodiment, an anti-climbing device 1 has a square design and comprises an impact plate 2 and a plurality of protrusions 3 protruding from the impact plate 2, the course of which follows a polygon of straight sections. Alternatingly rising 4 and falling 5 sections are provided in a molding 3 . In the exemplary embodiment shown, eight formations 3 are arranged in such a way that the shape of the polygon of two adjacent formations 3 is mirrored to one another. Short horizontal sections connect the 4 ascending and 5 descending sections. The anti-climbing device 1 is shown in its position of use, in which the formations 3 are arranged horizontally. In this orientation, the anti-climbing device 1 is to be arranged on a vehicle structure, for example a corner pillar or a protruding energy absorption element. Corresponding assemblies of a rail vehicle are in Fig.1 not shown.

Fig.2 shows an example and diagrammatically of an anti-climbing device in an oblique view. Climbing protection device 1 is off Fig.1 shown, the shape of the formations 3 being particularly evident in this view. The course of the extension (height) above the baffle plate 2 of each formation 3 can also be seen. This extension varies between a minimum 6 above the flapper 2 and a maximum 7 above the flapper.

Fig.3 shows an example and diagrammatically of a climbing protection device in an oblique view from below. It is the anti-climbing device 1 from the 1 and 2 shown, in particular the course of the extension over the impact plate 2 of the formations 3 is clearly visible. Between the minima 6 and maxima 7 there is a rising 8 or falling 9 section of the extent.

List of designations

1

Anti-climbing device

2

flapper

3

molding

4

Rising section of the gradient

5

Falling section of the gradient

6

Minimum of extension over the flapper

7

Maximum of extension over the flapper

8th

Uphill section of range

9

Declining section of extension

Claims (4)

1. Anti-climber device (1) for a rail vehicle, comprising a baffle plate (2) with a plurality of projecting mouldings (3), wherein the extension of the mouldings across the surface of the baffle plate (2) follows a traverse line with a repeated sequence of rising (8) and falling (9) sections,
   characterised in that
   in the installation position of the anti-climber device (1), the course of the mouldings (3) is formed as a travers line with a repetitive sequence of rising (4) and falling (5) sections with respect to the horizontal.
2. Anti-climber device for a rail vehicle according to claim 1, characterised in that
   in the installation position of the anti-climber device (1), minima (6) and maxima (7) of the course of all mouldings are arranged on a vertical line in each case.
3. Anti-climber device for a rail vehicle according to claim 2, characterised in that
   the course of two adjacent mouldings is embodied with a mirror image with respect to one another.
4. Anti-climber device for a rail vehicle according to claim 2, characterised in that
   the course of two adjacent mouldings is embodied parallel to one another.

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