AU2006201248A1

AU2006201248A1 - Device for automated coupling

Info

Publication number: AU2006201248A1
Application number: AU2006201248A
Authority: AU
Inventors: Rolf Birkenbach; Frank Frentzen; Hans Boris Hahnen; Frank Neumeyer; Joachim Rossbach; Udo Wensing
Original assignee: Ringfeder VBG GmbH
Current assignee: VBG Group Truck Equipment GmbH
Priority date: 2005-04-09
Filing date: 2006-03-27
Publication date: 2006-10-26
Anticipated expiration: 2026-03-27
Also published as: CY1109077T1; NZ546210A; DE502005006644D1; ATE423051T1; PT1710145E; EP1710145A1; AU2006201248B2; EP1710145B1; DE202005005676U1; PL1710145T3; DK1710145T3; SI1710145T1; CN1843787A; ES2322708T3

Abstract

The coupling is assembled of an element with a jaw end fixed to the tractor and a ring-shaped element located at the tow bar to be pushed between the claws and secured with a movable bolt. A connecting arm (4) is swivel mounted to the rear of the tractor and can be moved into a position facilitating the automatic joining of a contact element positioned at the outer end of the arm (4) and a contact device located at the tow bar. The arm (4) is moved by a toothed rack (8) meshing with the toothed segment (9) at the front of the arm (4).

Description

S&F Ref: 754800

AUSTRALIA

PATENTS ACT 1990 COMPLETE SPECIFICATION FOR A STANDARD PATENT Name and Address of Applicant: Actual Inventor(s): Address for Service: Invention Title: Ringfeder VBG GmbH, of OberschlesienstraBe 15, D- 47807, Krefeld, Germany Udo Wensing Hans Boris Hahnen Frank Neumeyer Frank Frentzen Rolf Birkenbach Joachim RoBbach Spruson Ferguson St Martins Tower Level 31 Market Street Sydney NSW 2000 (CCN 3710000177) Device for automated coupling The following statement is a full description of this invention, including the best method of performing it known to me/us:- 5845c Device for automated coupling The invention relates to a device for the automated coupling of electric and/or pneumatic and/or hydraulic connections between a trailer vehicle and a towing vehicle, a coupling mechanism for coupling a trailer vehicle to the towing vehicle being provided, in the case of which device a coupling body with a mouth opening, into which a drawbar eye of a drawbar provided on the trailer vehicle can be introduced, and with a coupling bolt which can be actuated for the releasable locking and then reaches through the drawbar eye is provided at the rear of the towing vehicle.

NO

to Devices of this type are known from practice, in which one part is fitted to the mouth opening and the other part is fitted to the drawbar in such a manner that, during the translatory introduction of the drawbar eye into the mouth opening, the plug-in connection for the electric and/or pneumatic and/or hydraulic line is produced at the same time.

A drawback in this connection is that, either for an automated coupling, the towing vehicle and trailer vehicle have to be oriented very precisely and in alignment corresponding to the orientation of the vehicle or else a manual orientation of the coupling elements has to take place before the connection is produced. However, this again necessitates an outlay on personnel which is to be avoided according to the invention.

It is the object of the invention to avoid the abovementioned disadvantages and to indicate a possibility with which an automated coupling of the respective connection can take place without manual auxiliary activities.

This object is achieved in that for the automated coupling of the electric and/or pneumatic and/or hydraulic connections after a mechanical connection between drawbar eye and mouth opening/coupling bolt has already been produced, a connecting arm which is arranged in the region of the coupling body, can be pivoted laterally when actuated by a force and, when the trailer vehicle is uncoupled, can be pivoted into a rest position on the rear of the towing vehicle, is provided in the region of the coupling body, the end side of the connecting arm having a contact device, which interacts with a contact element I R:\LI BLL] 18313.doc:lzv

I

O provided on the drawbar, for producing the intended connection by bringing contact 0 element and contact device into contact, the contact element and the contact device in turn ¢t being further connected in each case via corresponding connections. By this means irrespective of the mechanical loading which by the mechanical coupling of the trailer vehicle to the towing vehicle that is brought about by moving the towing vehicle on to the drawbar of the trailer vehicle the electric and/or hydraulic and/or pneumatic connection 00 can be produced without excessive mechanical loading, since a rigid connection is already provided.

io The contact element and/or the contact device can preferably have bevelled side regions for centring purposes, so that even if the contact device does not meet the contact element precisely, for example due to an uneven underlying surface or the like, the connection can be produced correctly.

According to the invention, the connecting direction of contact element and contact device can be oriented in accordance with the pivoting direction of the connecting arm, so that an automatic production of the connection takes place at the end of the pivoting movement.

As an alternative, the connecting direction of contact element and contact device can also be oriented orthogonally to the pivoting direction of the connecting arm. In this case, the contact element and/or the contact device can be designed in a manner such that they can be moved towards each other in the connecting direction, so that, in a first step, the contact device is pivoted towards the contact element and, in a second step, the connection is produced by means of a translatory displacement taking place in the radial direction.

The connecting direction of contact element and contact device can also be oriented orthogonally to the plane determined by the pivoting direction of the connecting arm. In this case, at least the contact device, in particular the entire connecting arm, can be designed in a manner such that it can be displaced, in particular pivoted, in the connecting direction, so that, likewise in a first step, the contact device is pivoted towards the contact element and, in a second step, the connection can be produced by means of a translatory [R:\LIBLL]1 8313.doc:lzv -3- 0 displacement of contact element and/or contact device or else by means of a N corresponding pivoting of the connecting arm in the required direction.

The contact device can preferably be fitted releasably to the connecting arm, so that, in a 'i s first step, the connection is produced and then, by release of the contact device from the connecting arm, a pivoting of the connecting arm back into its rest position can take O0 place. As a result, a restricted guiding means is unnecessary, and the connecting arm is not subjected to any mechanical loadings whatsoever during the driving mode.

As an alternative, at least one direction of movement of the connecting arm can be 0switched to move freely so as to provide free pivotability during the driving mode, so that likewise no mechanical loadings of the connecting arm result.

In a preferred exemplary embodiment, the connecting arm can be provided above or below the coupling body, and the axis of rotation of the drawbar eye and the pivot axis of the connecting arm can be aligned with each other, so that, when the connecting arm is not released, no states of stresses whatsoever can take place due to an uneven displacement of connecting arm and drawbar.

According to the invention, the connecting arm can be designed such that it is curved approximately in an S-shaped manner, and, when the connecting arm is pivoted in in the rest position, the rear side of the contact device can bear at least approximately against the rear of the towing vehicle, so that even when the axis of rotation of the connecting arm is mounted such that it protrudes at the rear, the correspondingly designed contact device can be arranged in the rest position of the connecting arm in such a manner that it does not protrude, or at least does not protrude further than the connecting device, in relation to the rear of the towing vehicle.

The drive for pivoting the connecting arm can preferably be designed as a rack which can be displaced by actuation by a force and drives a toothed wheel segment which interacts with the connecting arm and, in particular, is fitted to the connecting arm, with it being possible, in particular, for that end of the connecting arm which is arranged pivotably on the towing vehicle to be designed as the toothed wheel segment.

[R:\LIBLL] 18313.doc:lzv -4- O An angle of rotation sensor can be used to determine the precise orientation of towing N vehicle and trailer vehicle before the connecting arm is pivoted, so that a precise t activation of the connecting arm can take place and unnecessary loadings in this respect due to the attempt of a further pivoting after the connection is produced are avoided. In this case, the drive can preferably be of hydraulic or pneumatic design, so that, by using the driving resources in any case present on the towing vehicle, a simple drive can take C place without an unnecessary mechanism. As an alternative, the drive may also be of electric design.

Io Exemplary embodiments of the invention which are illustrated in the drawing are explained below. In the drawing: Fig. 1 shows a plan view of a first exemplary embodiment of a device according to the invention for the automated coupling.

Fig. 2 shows a side view of the subject matter according to Fig. 1.

Fig. 3 shows the subject matter according to Fig. 2 with the connecting arm lowered.

Fig. 4 shows the subject matter according to Fig. 3 with the connecting device released.

Fig. 5 shows a second exemplary embodiment of a device according to the invention for the automated coupling.

Fig. 6 shows a further exemplary embodiment of an embodiment according to the invention for the automated coupling, and Fig. 7 shows a side view of the subject matter according to Fig. 6.

In all of the figures, corresponding reference numbers are used for identical or similar components.

[R:\LIBLL] 18313.doc:lzv O Fig. 1 shows a device 1 for the automated coupling of electric and/or pneumatic and/or

O

N hydraulic connections (not specifically illustrated in the drawings) between a trailer t vehicle and a towing vehicle.

In this case, the towing vehicle is provided with a coupling mechanism for the coupling of a trailer vehicle and a coupling body with a mouth opening 2, into which a drawbar eye of 00 a drawbar 3 provided on the trailer vehicle can be introduced, is provided at the rear of _the towing vehicle, with an actuable coupling bolt which then reaches through the drawbar eye being provided for the releasable locking.

The device 1 is designed in such a manner that the connections to be produced takes place only after the mechanical connection between drawbar eye and mouth opening 2 and coupling bolt has already been produced. For this purpose, a connecting arm 4, which is arranged in the region of the coupling body and can be pivoted laterally when actuated by a force, is arranged at the rear of the towing vehicle and, when the trailer vehicle is uncoupled, can be pivoted into a rest position on the rear of the towing vehicle. The connecting arm 4 is then fitted at its one end pivotably on the towing vehicle and, at its other end, a contact device 5 is provided which, interacting with a contact element 6 arranged on the drawbar 3, ensures the connection by contact device 5 and contact element 6 being brought into contact. The contact element 6 and the contact device 5 are in turn in each case connected via corresponding connections (not illustrated in the drawing) to the respective further devices on the trailer vehicle and on the towing vehicle.

As is apparent from Fig. 1, the connecting arm 4 can be pivoted when actuated by a force out of its rest position into a position for producing the connection, with a pneumatic cylinder 7 being provided for this, the said pneumatic cylinder interacting via a rack 8 with a toothed wheel segment 9 on the connecting arm 4.

In the exemplary embodiment of the invention that is illustrated in Figs. 1 to 4, in this respect the contact device 5 is pivoted into a position above the contact element 6, and the connection is then produced by lowering of the also vertically pivotable connecting arm 4. In this case, both contact device 5 and contact element 6 have bevelled side edges in order therefore to ensure an automatic centring even when the pivoting has not taken place entirely precisely.

[R:\LIBLL] 18313.doc:lzv r As is apparent from Fig. 4, the contact device 5 is fitted releasably to the connecting arm t 4, with it being possible for a corresponding connection 10 to remain as connection between contact device 5 and connecting arm 4 even in the released state.

In the variant embodiment of the device 1 according to the invention that is illustrated in 00 Fig. 5, the connecting arm 4 is likewise arranged above the mouth opening 2, and the axis N of rotation of the drawbar eye and the pivot axis of the connecting arm 4 are likewise aligned with each other.

ID The connecting arm 4 is designed such that it is curved approximately in an S-shaped manner, and, when the connecting arm 4 is pivoted into its rest position at the rear of the towing vehicle, the rear side of the contact device 5 likewise bears against the rear of the towing vehicle. In this respect, when the connecting arm 4 is restricted, the contact device 5 does not protrude over the rear of the towing vehicle further than the mouth opening 2.

In the further exemplary embodiment of a device 1 according to the invention that is illustrated in Figures 6 and 7, the device 1 is arranged below the mouth opening 2.

Pivoting of the connecting arm 4 enables the contact device 5 to be pivoted into a position directly in front of the contact element 6. The desired connection is then produced either by means of a translatory displacement of the contact element 6 and/or of the contact device 5. In the exemplary embodiment illustrated, the contact element is arranged on the drawbar 3 such that it can be displaced in a translatory manner.

[R:\LIBLL] 18313.doc:lzv

Claims

2. Device according to Claim 1, wherein the contact element and/or the contact device has/have bevelled side regions for centring purposes.
3. Device according to Claim 1 or 2, wherein the connecting direction of contact element and contact device is oriented in accordance with the pivoting direction of the connecting arm.
4. Device according to Claim 1 or 2, wherein the connecting direction of contact element and contact device is oriented orthogonally to the pivoting direction of the connecting arm. Device according to Claim 4, wherein the contact element and/or the contact device is/are designed in a manner such that they can be moved towards each other in the connecting direction. [R:\LIBLL]I 8313.doc:lzv 0 6. Device according to Claim 1 or 2, wherein the connecting direction of contact 0 N element and contact device is oriented orthogonally to the plane determined by the t pivoting direction of the connecting arm.
7. Device according to Claim 6, wherein at least the contact device, in particular the entire connecting arm, is designed in a manner such that it can be displaced, in particular 0 pivoted, in the connecting direction.
8. Device according to one of Claims 1 to 7, wherein the contact device is fitted releasably to the connecting arm.
9. Device according to one of Claims 1 to 8, wherein at least one direction of movement of the connecting arm can be switched to move freely so as to provide free pivotability during the driving mode. Device according to one of Claims 1 to 9, wherein the connecting arm is provided above or below the coupling body, and the axis of rotation of the drawbar eye and the pivot axis of the connecting arm are aligned with each other.
11. Device according to one of Claims 1 to 10, wherein the connecting arm is designed such that it is curved approximately in an S-shaped manner, and, when the connecting arm is pivoted in in the rest position, the rear side of the contact device bears at least approximately against the rear of the towing vehicle.
12. Device according to one of Claims 1 to 11, wherein the drive for pivoting the connecting arm is designed as a rack which can be displaced by actuation by a force and which drives a toothed wheel segment which interacts with the connecting arm and, in particular, is fitted to the connecting arm.
13. Device according to one of Claims 1 to 12, wherein the drive is of hydraulic or pneumatic design.
14. Device for the automated coupling of electric and/or pneumatic and/or hydraulic connections between a trailer vehicle and a towing vehicle, said device substantially as [R:\LIBLL] I 8313.doc:lzv -9- O hereinbefore described with reference to Figs 1 to 4, Fig 5, or Figs 6 and 7 of the N accompanying drawings. Dated 27 March, 2006 r- Ringfeder VBG GmbH Patent Attorneys for the Applicant/Nominated Person 00 SPRUSON FERGUSON (N O- [R:\LIBLL] I 8313.doc:lzv