EP3028915B1 - Joint in the roof area between two articulated vehicles - Google Patents

Description

The invention relates to a hinge which can be arranged in the roof area between two articulated vehicle parts comprising at least one female and at least one male joint segment, wherein the male and female joint segments communicate with each other by a bearing body arranged in the region of the male joint segment, the two joint segments passing through a kink bearing with an aligned in the Z direction axis of rotation are connected.

In articulated vehicles is particularly known that the lower, that is arranged in the bottom area joint bearing must absorb all forces that occur both in the radial and in the axial direction. That is, this lower pivot bearing is used to transmit such forces as they do when cornering, as well as the pushing and pulling forces when braking or pulling such an articulated vehicle.

However, articulated vehicles also experience a variety of force effects that result in a likewise high number of relative movements of the vehicle parts to each other. So here are the effects of motion, as they occur when such a vehicle drives around a curve, but also movements of the vehicle parts relative to each other when such a vehicle drives through a bump or over a knoll. In addition to such pitching movements, so-called rolling movements of the vehicle parts also occur relative to one another when the vehicle parts are rotated about their longitudinal axis relative to one another. Likewise arise so-called offset movements when a vehicle consisting of several parts of the vehicle as articulated vehicle z. B. drives over an S-shaped turnout.

In particular, for rail vehicles to ensure that the envelope of the vehicle remains relatively small. This is especially true for subways. An envelope is understood to mean the total radial space required by the vehicle during the occurrence of the driving movements of the vehicle. In particular, extreme rolling movements of the vehicle parts relative to each other thus cause a large envelope. Such a large envelope is undesirable in that much more space for the vehicle must then be provided on the rail. Providing a large space for the Driving movement of the vehicle is correspondingly expensive, which is particularly noticeable in the construction of subways.

From the EP 2 695 790 A1 is a ceiling mount between two articulated interconnected vehicles or vehicle parts is known, comprising a first and a second main carrier as a female and male joint segment, wherein the second main carrier has a cross member for connection to the first main carrier by a rotary or articulated joint. The cross member has laterally arranged elastic return element, which can be compressed during rolling movements. In the X direction, the joint is rigid.

In order to avoid rolling movements of the vehicle parts relative to each other, without special measures must be taken to the vehicle parts themselves, is from the EP 0 983 931 B1 a arranged in the area of the ceiling, designed in the manner of a hinge band scissors frame, wherein the ends of the hinge band are pivotally connected to the one and the other vehicle. By arranging a scissor frame whose articulation axes extend transversely to the longitudinal axis of the vehicle, it is achieved that rolling movements are avoided, whereas pitching movements are possible.

From the EP 2 500 227 A2 is a in the roof area of two articulated vehicle parts arranged device for limiting the rolling motion of the vehicle parts relative to each other known. The device comprises two carriers, wherein in each case one carrier is arranged in the roof area of each vehicle. A dome arm is provided between the brackets, the dome arm being secured to each bracket by a pivot bearing having a vertical axis. At least one pivot bearing is designed as a spherical bearing, wherein the Device for limiting the rolling movement comprises a tension element arranged between the carriers, wherein the tension element is held on each carrier by a bearing block. The distance between the bearing blocks to each other here is less than the distance of the pivot bearing for receiving the dome arm. The tension element has at least one separate spring element which can be pressed relative to one another against a stop during a rolling movement of the vehicle parts.

From the EP 2 765 050 A1 a device arranged in the roof area of two articulated vehicles connected to each other for limiting the roll and / or pitch movement of the vehicle parts relative to each other is known, wherein the device comprises at least two consoles. In each case at least one console is arranged in the roof area in each case at least one vehicle part, wherein the at least two consoles are interconnected by a coupling arm. The brackets are hereby designed in the manner of a leaf spring.

The document DE 10 2010 046 495 B3 describes an elastic member with which the housing of the bearing body is supported relative to the male joint segment.

Now also multi-unit, especially rail-bound articulated vehicles are known, with only individual vehicle parts have a bogie. That is, for example, in a five-unit vehicle, the front, rear, and center vehicle parts each have a bogie. The two intermediate vehicle parts are formed as sedan chairs and are supported by the adjacent vehicle parts with the respective bogies. Such vehicles must be substantially rigidly interconnected to prevent collapse. However, a plurality of such vehicle parts are still connected to each other so that pitching movements between the vehicle parts are possible, otherwise driving through depressions or driving over hills would not be possible. In this context is from the EP 1 038 761 B1 known to arrange a joint in the roof area between two articulated vehicle parts comprising at least one female and at least one male joint segment, wherein the male and female joint segments are connected by a bearing body arranged in the region of the male joint segment. The female joint segment in this case comprises two arms which extend at an angle to each other, and are connected end to end with a vehicle part. Between the claw-shaped end of the two arms and the male joint segment is the previously arranged bearing body, by which a bending movement between the two vehicle parts is made possible when cornering. By a compound according to the prior art according to the aforementioned EP 1 038 761 B1 is in connection with a arranged in the region of the bottom ball joint between two articulated vehicle parts of a rail vehicle, wherein the ball joint allows three degrees of freedom for the rotational movement, but locked in the Z direction, ensures that such vehicle parts do not allow pitching relative to each other. Rolling movements are essentially not permitted by means of this device, but it is assumed that the vehicle parts or bodies are so elastic that they absorb the rolling and pitching movements that occur.

The object underlying the invention is to provide a can be arranged in the roof area between two hingedly interconnected vehicle parts joint of the type mentioned, which is simple and inexpensive in construction, requires little space, beyond rolling movements in a pre-definable extent allows, whereas pitching movements between the two parts of the vehicle are substantially excluded, and the joint further comprises a kinked bearing to allow the passage of curves with such an articulated vehicle.

To achieve the object, the invention proposes that the bearing body has a housing, wherein the housing in the longitudinal direction of the vehicle parts, ie in the X direction by at least one elastic member, in particular a metal-elastomer bearing, is supported relative to the male joint segment, and wherein the housing of the bearing body in the Y direction has a stop which is spaced from the male Joint segment runs. The Y-direction in this case runs horizontally transversely to the longitudinal axis of the vehicle. Advantageously, the housing in the X direction to both opposite ends in each case an elastic member, in particular a metal-elastomer bearing.

Visible, the bearing body is arranged by the at least one metal-elastomer bearing, in particular by the two metal-elastomer bearings, clamped in the male joint segment.

The arranged in the longitudinal direction of the vehicle parts at least one elastic member, in particular the metal-elastomer bearing, basically allows a rolling motion between the two articulated vehicle parts. However, the stop, which is arranged horizontally in the Y direction transversely to the longitudinal axis of the vehicle on the housing, limits the rolling movement by the predeterminable distance of the stop to the bearing body receiving the male joint segment.

Advantageous features and embodiments of the invention will become apparent from the dependent claims.

Thus, it is provided in particular that the bearing body has centrally a bush for receiving a pin, which is in communication with the female joint segment. The pin runs in the Z direction, d. H. in the direction of the vertical axis of the vehicle parts, inasmuch as the pin represents the axis of rotation or articulation axis about which the two vehicle parts move when passing through a curve relative to each other.

According to an advantageous feature of the invention is further provided that the male joint segment in the Z direction with vertical clearance through the female joint segment is receivable. This means that the female joint segment in the Z direction in his Movement is free. In conjunction with a arranged in the bottom region of the two vehicle parts joint which is locked in the Z direction, this ensures that the vehicle parts in the Z direction can not be braced against each other.

The metal-elastomer bearing, which is arranged in the X direction at both ends of the housing, and which allows a damped rolling movement of the two vehicle parts relative to each other, in detail alternately has a plurality of elastomer discs, between which bearing discs are arranged, the bearing discs in particular are formed of metal. The number of individual bearing and elastomer discs determines, among other things, the size of the roll angle, but also the spring characteristic. That is, the more elastomer and bearing discs are provided, the softer the bearing.

This applies to rolling motions. Nick movements are required, they can not be substantially absorbed by the metal-elastomer bearing. Nick movements must be taken so far, for example, by the chassis of the vehicle parts.

It has already been mentioned elsewhere that the housing of the bearing body has at least one stop in the Y direction. This stop is spaced from the male joint segment, in which the bearing body is arranged clamped. The stop is advantageously designed as an elastomer buffer. From this it is clear that the roll angle is limited by the stop when the stop rests against the wall of the male joint segment. Also, the housing itself can form the stop.

In the region of the stop, the male joint segment has a recess which essentially corresponds to the contour of the stop equivalent. This ensures that the stop is guided in contact with the wall of the male joint segment. The guide also ensures that pitching movements between the two vehicle parts are not transmitted by the bearing body. It has already been pointed out that due to the nature of the structure of the joint, and in particular by the arranged in the direction of the X-axis on the housing metal-elastomer bearing, a recording of pitching movements through the joint is substantially excluded, as in a Nick movement the metal-elastomer bearing goes directly to block.

The articulated bearing is designed as a sliding bearing, wherein for this purpose in the housing of the bearing body a bushing for receiving a sliding bush is provided, in which the pin is rotatably mounted.

According to a further feature of the invention it is provided that on the upper side of the female joint segment, a locking member is detachably arranged, which is engageable with the pin, thereby ensuring that thereby secured the pin in the joint segments and the bearing body in the Z direction is.

Fig. 1

zeigt eine dreidimensionale Darstellung des Gelenkes;

Fig. 2

zeigt einen Schnitt gemäß der Linie II-II aus Fig. 1;

Fig. 3

zeigt einen Schnitt gemäß der Linie III-III aus Fig. 1;

Fig. 4

zeigt in perspektivischer Darstellung den Lagerkörper.

With reference to the drawings, the invention will be explained in more detail below by way of example.

Fig. 1

shows a three-dimensional representation of the joint;

Fig. 2

shows a section along the line II-II Fig. 1 ;

Fig. 3

shows a section along the line III-III Fig. 1 ;

Fig. 4

shows a perspective view of the bearing body.

According to Fig. 1 are the two car bodies, between which is the joint designated 1, designated 3 and 4. The joint 1 itself comprises the female joint segment designated 6, which receives the male joint segment 8. The male joint segment 8 receives clamped on the designated bearing body 10, wherein for pivotally connecting the female joint segment 6 with the male joint segment 8 of the pin 12 is provided. By the pin 12 extending in the Z direction axis of rotation is formed. The X-axis extends in the longitudinal direction of the vehicle parts 3, 4, the Y-axis in the horizontal direction transverse to the longitudinal axis, as can be seen from the illustration Fig. 1 results.

The bearing body 10, which is arranged clamped in a recess 14 of the male joint segment 8, comprises a housing 16 in the X direction (see Fig. 1 ) has a metal-elastomer bearing 18, 19 at both ends. The housing 16 also has a central bush 21, in which a slide bush 23 is arranged, which rotatably receives the pin 12 in the manner of a sliding bearing. The female joint segment 6 has on its upper side the locking member designated 25, which engages in the groove 13 of the pin 12. The fixation of the locking member 25 on the female joint segment 6 by screws 27 (see Fig. 2 ).

Looking now Fig. 3 , so you can see the arranged on both sides of the housing in the Y direction on the housing 16 stop 29. The stop 29 is made of an elastomer, for. As an EPDM produced. The male joint segment 8 has on the inner wall 9 in the region of the stop 29 on a recess 11 which corresponds approximately to the contour of the stop 29.

The metal-elastomer bearing 18, 19 has a plurality of elastomer discs 18a, 19a, between which there is a respective bearing disc in the form of a metal disc 18b, 19b. The connection between the respective metal disc 18b, 19b on the one hand and the respective elastomer disc 18a, 19a on the other hand can be done by vulcanization or gluing.

LIST OF REFERENCE NUMBERS

1

joint

3, 4

car body

6

female joint segment

8th

male joint segment

9

inner wall

10

bearing body

11

Cutout for stroke

12

spigot

13

groove

14

Recess in the male joint segment

16

casing

18, 19

Metal-elastomer bearing

18a, 19a

elastomer disk

18b, 19b

metal disc

21

centric bush for pegs

23

bush

25

locking member

27

screw

29

attack

Claims (11)

1. An articulated joint (1) that can be disposed in the roof area between two articulately connected vehicle parts comprising at least one female (6) and at least one male joint segment (8), wherein the male (8) and the female joint segment (6) are connected with each other by a bearing body (10) disposed in the region of the male joint segment (8), wherein the two joint segments (6, 8) are connected by a pivot bearing with a pivot axis aligned in the Z direction,
   characterized in that
   the bearing body (10) comprises a housing (16), wherein the housing (16) is supported relative to the male joint segment (8), by at least one elastic element, in the X direction, and that the housing (16) of the bearing body (10) comprises at least one limit stop (29) in the Y direction, which extends at a distance from the male joint segment (8).
2. The articulated joint (1) that can be disposed in the roof area between two articulately connected vehicle parts according to claim 1,
   characterized in that
   the housing (16) of the bearing body (10) comprises an elastic element on both sides in the X direction.
3. The articulated joint (1) that can be disposed in the roof area between two articulately connected vehicle parts according to one of the afore-mentioned claims,
   characterized in that
   the bearing body (10) is held clamped in the male joint segment (8) by the at least one elastic element.
4. The articulated joint (1) that can be disposed in the roof area between two articulately connected vehicle parts according to one of the afore-mentioned claims,
   characterized in that
   the elastic element is designed as a metal-elastomer bearing (18, 19).
5. The articulated joint (1) that can be disposed in the roof area between two articulately connected vehicle parts according to one of the afore-mentioned claims,
   characterized in that
   the bearing body (10) centrically comprises a socket (21) for receiving a pin (12) that is linked with the female joint segment (6).
6. The articulated joint (1) that can be disposed in the roof area between two articulately connected vehicle parts according to one of the afore-mentioned claims,
   characterized in that
   the male joint segment (8) can be received by the female joint segment (6) with a vertical clearance in the Z direction.
7. The articulated joint (1) that can be disposed in the roof area between two articulately connected vehicle parts according to one of the afore-mentioned claims 4 to 6,
   characterized in that
   the metal-elastomer bearing (18, 19) comprises alternating layers of metallic and elastomeric plates (18a, 18b, 19a, 19b).
8. The articulated joint (1) that can be disposed in the roof area between two articulately connected vehicle parts according to one of the afore-mentioned claims,
   characterized in that
   the limit stop (29) is designed as an elastomeric buffer.
9. The articulated joint (1) that can be disposed in the roof area between two articulately connected vehicle parts according to one of the afore-mentioned claims,
   characterized in that
   the male joint segment (8) comprises a recess (11) in the area of the limit stop (29), which substantially corresponds to the contour of the limit stop (29).
10. The articulated joint (1) that can be disposed in the roof area between two articulately connected vehicle parts according to one of the afore-mentioned claims,
    characterized in that
    the pivot bearing is designed as a sliding bearing.
11. The articulated joint (1) that can be disposed in the roof area between two articulately connected vehicle parts according to one of claims 5 to 10,
    characterized in that
    a blocking element (25), which can engage with the pin (12), is detachably disposed on the female joint element (6).

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