DE19859961C2 - Towbar with a swiveling ball neck - Google Patents

Towbar with a swiveling ball neck

Info

Publication number
DE19859961C2
DE19859961C2 DE1998159961 DE19859961A DE19859961C2 DE 19859961 C2 DE19859961 C2 DE 19859961C2 DE 1998159961 DE1998159961 DE 1998159961 DE 19859961 A DE19859961 A DE 19859961A DE 19859961 C2 DE19859961 C2 DE 19859961C2
Authority
DE
Germany
Prior art keywords
bearing
pin
characterized
trailer coupling
position
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE1998159961
Other languages
German (de)
Other versions
DE19859961A1 (en
Inventor
Friedrich Domke
Burkhard Weniger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WESTFALIA-AUTOMOTIVE GMBH, 33378 RHEDA-WIEDENB, DE
Original Assignee
Westfalia Automotive GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westfalia Automotive GmbH and Co KG filed Critical Westfalia Automotive GmbH and Co KG
Priority to DE1998159961 priority Critical patent/DE19859961C2/en
Publication of DE19859961A1 publication Critical patent/DE19859961A1/en
Application granted granted Critical
Publication of DE19859961C2 publication Critical patent/DE19859961C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60DVEHICLE CONNECTIONS
    • B60D1/00Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/48Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
    • B60D1/54Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting collapsible or retractable when not in use, e.g. hide-away hitches
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60DVEHICLE CONNECTIONS
    • B60D1/00Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/01Traction couplings or hitches characterised by their type
    • B60D1/06Ball-and-socket hitches, e.g. constructional details, auxiliary devices, their arrangement on the vehicle

Description

The invention relates to a trailer hitch in Generic term of claim 1 designated in more detail Art.

Such a trailer hitch is from the disclosure document DE 196 54 867 A1 known. In this version, where the ball neck with the coupling ball over one Auxiliary drive is pivotable, the necessary locking can both in the rest position and in the operating position of the ball neck via the servo drive, or it For this purpose, one is mounted on a frame part that is fixed to the vehicle te pawl provided with a locking device jump cooperates on the ball neck.

From the German utility model DE-GM 72 33 868 is one Trailer coupling known, in which the coupling ball tra the ball neck is divided, the parts of the ball neck ses can be articulated relative to each other. This is the part of the coupling neck on which the coupling ball is at such a height to be able to fix the coupling ball in a suitable height for the trailer to be pulled det. For this purpose, the parts of the coupling neck have together Rod ends that can be clamped using screw bolts that attach to their Contact surfaces have a toothing. For a permanent Swiveling coupling ball and ball neck between egg ner rest position and an operating position is this well-known trailer coupling not provided.

The invention has for its object a trailer to create coupling of the generic type, in which the Bearing sleeve on one end of the ball neck on the bearing pin zen not swiveling, but in the rest position as in the Operating position on the bearing pin itself is non-rotatably fixable.  

This task is done with a generic trailer coupling through the characteristic features of the patent spell 1 solved.

For the trailer coupling according to the invention it is essential that in one axial position of the bearing sleeve of the clutch Lungshalses axially supporting abutment the positive connection contours or elements of the bearing pin and bearing sleeve are in engagement with each other that the bearing sleeve against Do not ver the bearing bolt to be fixed above the vehicle can be rotated. In the second axial position of the counter However, the bearing sleeve can be in the axial direction on Ball neck as far from the head part of the bearing pin be moved that the positive locking contours out of engagement come and then the bearing sleeve together with it Ball neck and coupling ball between the rest position and the Operating position can be pivoted. The lock in one of these two positions then takes place again Axial displacement of the abutment, which creates the positive connection contours on the bearing pin head and on the bearing sleeve of the Ball neck come into engagement again. Which he inventive trailer hitch is especially for one suitable for swiveling ball neck, also the Actuation of the axially adjustable abutment for support the bearing sleeve on the ball neck by hand that can.

Advantageous design features of the invention result itself from the subclaims.

The invention is based on the drawing to egg NEM embodiment explained in more detail. Show:

Fig. 1 is an exploded, perspective view of the new trailer hitch and

Fig. 2 is a view of the bearing pin of the trailer hitch development according to FIG. 1 in an enlarged representation.

In detail, 1, a cross pipe 1, which is intended for fixed attachment to the underside of a vehicle, especially a passenger car, close to the usual rear bumper seen in FIG.. With the cross tube 1 is a downwardly protruding mounting lug 2 is firmly connected to which a bearing pin 4 with an enlarged in the radial direction head part 3 is firmly attached in a cranked arrangement. On the bearing pin 4 , a bearing sleeve 5 is mounted, which has an inner diameter adapted to the outer diameter of the bearing pin 4 through hole 6 . With the bearing sleeve 5 , a ge curved or curved ball neck 7 is integrally verbun which, in a conventional manner, carries a coupling ball 8 at its free end.

On its bearing pin 4 annularly surrounding Stirnsei te 9 , the head part 3 of the bearing pin 4 has a positive locking contour 10 in the form of a toothing which is substantially parallel to a diametrical face 9 of the head part 3 of the bearing pin 4 . The teeth 11 of the final contour 10 have beveled flanks 12 on both sides.

At the head part 3 of the bearing pin 4 adjacent end, namely on the end face 9 of the head part 3 opposite end face 13 , the bearing sleeve 5 also has a form-fitting contour 14 in the form of a form-fitting contour 10 on the head part 3 of the bearing pin 4 corresponding counter teeth. So the teeth of this positive locking contour 14 beveled flanks to facilitate the assembly of the positive locking contours 10 , 14 , which is possible in two rotary end positions of the bearing sleeve 5 , the Ruhela ge and the operating position of the ball neck 7 with the hitch be ball 8 correspond , In these two positions, the bearing sleeve 5 is secured in a rotationally fixed manner on the head part 3 and thus on the bearing pin 4 , so that the ball neck 7 cannot be accidentally pivoted with the coupling ball 8 . In order to decouple the bearing sleeve 5 from the head part 3 of the bearing pin 4 , an axial displacement of the bearing sleeve 5 away from the head part 3 of the bearing pin 4 is required. On the other hand, the bearing sleeve 5 must be held securely in its axial coupling position on the bolt head part 3 , and the axial end positions of the bearing sleeve 5 are predetermined by an abutment 15 on which the bearing sleeve 5 with its end face remote from the bolt head part 3 supported.

The abutment 15 consists of a ring which is rotatably or pivotably arranged in a sliding manner as the bearing sleeve 5 with a through hole 25 on the bearing pin 4 . By means of a radially inserted, through a radial bore 19 passing driver 16 in the form of a pin, the abutment ring 15 on the bearing pin 4 as limited by axially displaceable Festge sets that the driver pin 16 engages in a setting 17 , which over a part the circumference at the end of the bearing pin 4 is arranged. As he in particular Fig. 2 he knows, the link 17 has a slope in the form of a groove with respect to the axis of the bearing pin 4 , and the projection of this slope on the axis of the bearing pin 4 corresponds to the axial stroke distance that the abutment ring 15 can cover. It is necessary here that the bearing ring 15 is rotated in the circumferential direction of the bearing pin 4 by the limited path that the link groove 17 allows.

The pivoting of the abutment ring 15 is done by hand via a handle member 22, can be seen from that in FIG. 1, two mirror-images of each other formed and is arrange te handle shells, which are arranged on a radially projecting on the abutment ring 15 guide rib 20 along ver displaceable. A spring 21 ensures that the grip element 20 is acted upon elastically in the radial direction towards the abutment ring 15 . With the handle member 22 of the drive pin 16 in the radial direction of the movably Widerla gerringes 15, however, the radial movement of the drive pin 16 is limited such that it can not come out of engagement with the cam groove 17 at the end of the bearing pin. 4 The radial displaceability of the carrier pin 16 only serves to disengage the abutment ring 15 in that pivoted position, which corresponds to the two Eingriffsla gene of the positive locking contours 10, 14, that is in effect at the bolt head portion toward displaced axial end position, the abutment ring 15 for its pivotal movement.

In this regard, an automatic locking of the abutment ring 15 in the axial position for the two Engagements conditions of the interlocking contours 10 , 14 is provided by engaging in the water position of the driving pin 16 of the abutment ring 15 in a recess 18 which at the corresponding end of the link groove 17 in the Groove is embedded. This depression 18 is also shown in the view of the bearing pin 4 according to FIG. 2. One can also see here a second groove 27 at the end of the bearing pin 4 , which is provided for the additional engagement of a second driver pin 26 in order to achieve a double support of the abutment ring 15 on the bearing pin 4 .

The abutment ring 15 , on which the bearing sleeve 5 is supported in the axial direction, should automatically return to the other end position from the axial end position, in which the positive locking contours 10 , 14 are disengaged at the opposite end of the bearing sleeve 5 and the bolt head 3 , in which the said positive locking contours 10 , 14 can come into engagement. To make this easier, the oblique flanks 12 are provided on the teeth 11 in the teeth of the form-locking contours 10 , 14 . On the other hand, the bevel of the flanks 12 of the teeth 11 has the purpose of automatically initiating the axial displacement of the bearing sleeve 5 if, with a corresponding release of the bearing sleeve 5, the ball neck 7 is pivoted by hand.

For the automatic return of the abutment ring 15 in the engagement position of the positive locking contours 10, 14 ent speaking position engages the abutment ring 15 an the biasing sen in the circumferential direction of the spring 23 at which a with their radially projecting end 28 in the abutment ring 15 and with their another, axially parallel end in a recess 29 at the end of the bearing pin 4 engages. The spring 23 is secured by a cover 24 which is screwed onto the outer side of the abutment ring 15 .

Claims (10)

1. trailer coupling for motor vehicles, in particular per motor vehicles, with a coupling ball at the free end of a cranked ball neck, at the second end of which a bearing sleeve is fixedly arranged, which can be pivoted between a rest position and an operating position of the ball neck and coupling ball on a bearing bolt to be fixed to the vehicle, characterized in that the bearing pin ( 4 ) has a head part ( 3 ) which lies opposite the one end of the bearing sleeve ( 5 ), with this bearing sleeve end and the pin head part ( 3 ) both with one another in the rest position and in the operating position Interlocking form-locking contours ( 10 , 14 ) which can be brought into engagement with the bearing pin ( 4 ) with the bearing sleeve ( 5 ) in a rotationally fixed manner, and that the bearing sleeve ( 5 ) at its end remote from the pin head part ( 3 ) on an abutment ring ( 15 ) is supported, the bolts on the bearing (4) between a first axial position with a handle location of Formschlu contours (10, 14) and a second axial position in which the form-locking contours (10, 14) are disengaged, is adjustable and further arranged in the circumferential direction thereof for rotation pin on the bearing (4) and due to twist between two Schwenkendlagen means of guide by a link ( 17 ) along the stroke path between the first and the second axial position is positively guided.
2. Trailer coupling according to claim 1, characterized in that one form-locking contour ( 10 ) on one end face ( 9 ) of the bearing bolt ( 4 ) and the other form-fitting contour ( 14 ) on an opposite end face ( 13 ) of the bearing sleeve ( 5 ) is arranged.
3. Trailer coupling according to claim 1 or 2, characterized in that the positive locking contours ( 10 , 14 ) consist of a toothing and a counter toothing.
4. Trailer coupling according to claim 2 and 3, characterized in that the form-locking contours ( 10 , 14 ) have inclined, axially outwardly converging flanks ( 12 ).
5. Trailer coupling according to one of claims 2 to 4, characterized in that the form-fitting contours ( 10 , 14 ) have a to the diam water of the bearing bolt ( 4 ) tangential course and / or a parallel course.
6. Trailer coupling according to one of claims 1 to 5, characterized in that the link ( 17 ) is formed by at least one groove which is cut into the circumference of the bearing pin ( 4 ) with a slope corresponding to the stroke of the abutment ring ( 15 ) and in which the abutment ring ( 15 ) engages with a driver ( 16 ).
7. Trailer coupling according to claim 6, characterized in that the driver ( 16 ) of the abutment ring ( 15 ) is a pin immersed in the link groove ( 17 ).
8. Trailer coupling according to claim 6 or 7, characterized in that the driver ( 16 ) within its engagement position in the direction of the axis of the bearing pin ( 4 ) away ge conditions the force of a spring ( 21 ) is displaceable and the link groove ( 17 ) of Bearing pin ( 4 ) on the Stel le of its groove base, which corresponds to the pivoting end position of the counter bearing ring ( 15 ) for the engagement positions of the positive locking contours ( 10 , 14 ), has a form-fitting recess ( 18 ) adapted to the driver ( 16 ) into which in this swivel end position the driver ( 16 ) is immersed.
9. Trailer coupling according to claim 8, characterized in that the driver pin ( 16 ) with an outside on the Widerla gerring ( 15 ) projecting pull handle ( 22 ) is connected.
10. Trailer coupling according to one of claims 1 to 9, characterized in that on the abutment ring ( 15 ) one in the circumferential direction of rotation to the pivot position for the engagement position of the positive locking contours ( 10 , 14 ) acting on spring ( 23 ) which engages on the bearing pin ( 4th ) is supported.
DE1998159961 1998-12-29 1998-12-29 Towbar with a swiveling ball neck Expired - Lifetime DE19859961C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1998159961 DE19859961C2 (en) 1998-12-29 1998-12-29 Towbar with a swiveling ball neck

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1998159961 DE19859961C2 (en) 1998-12-29 1998-12-29 Towbar with a swiveling ball neck

Publications (2)

Publication Number Publication Date
DE19859961A1 DE19859961A1 (en) 2000-07-13
DE19859961C2 true DE19859961C2 (en) 2003-07-03

Family

ID=7892598

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1998159961 Expired - Lifetime DE19859961C2 (en) 1998-12-29 1998-12-29 Towbar with a swiveling ball neck

Country Status (1)

Country Link
DE (1) DE19859961C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007003773A1 (en) * 2007-01-19 2008-07-24 Westfalia-Automotive Gmbh Towing device for towing vehicle, has positive locking element movably supported at positive locking element bearing, and engaging in locking position in positive locking receiver at outer circumference of coupling arm

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10017013A1 (en) * 2000-04-05 2001-10-18 Oris Fahrzeugteile Riehle H Towing
DE10144254A1 (en) 2001-09-03 2003-04-03 Oris Fahrzeugteile Riehle H Towing
AT315490T (en) 2002-02-28 2006-02-15 Kober Ag Tiltable towing device for towing vehicles
DE20215508U1 (en) * 2002-10-09 2004-02-26 Al-Ko Kober Ag Towing device for towing vehicles comprises a tow bar movably mounted about two axes of rotation, and a mechanical drive having a mechanism for generating a superimposed movement of the tow bar about both axes
US6860503B2 (en) 2002-11-13 2005-03-01 Westfalia-Automotive Gmbh & Co. Kg Retractile motor-vehicle trailer hitch
DE10252722B3 (en) * 2002-11-13 2004-02-19 Westfalia-Automotive Gmbh & Co. Kg Trailer coupling for motor vehicles has tow bar bearing head with centrally integrated locking mechanism, located on hollow shaft fastened to mounted flange
DE10320302A1 (en) 2003-05-07 2004-12-09 Westfalia-Automotive Gmbh & Co. Kg Trailer coupling for motor vehicles
DE10329622A1 (en) 2003-06-26 2005-01-20 Oris Fahrzeugteile Hans Riehle Gmbh Towing
DE10336445B4 (en) 2003-08-08 2006-04-20 Westfalia-Automotive Gmbh & Co. Kg Towbar for motor vehicles
DE10340347B4 (en) * 2003-09-02 2020-02-13 Westfalia-Automotive Gmbh Trailer coupling for motor vehicles
DE10354753B4 (en) * 2003-11-21 2014-07-24 Westfalia-Automotive Gmbh Towing hitch for motor vehicles
DE102004006371B4 (en) * 2004-02-09 2014-07-10 Westfalia-Automotive Gmbh Towbar for motor vehicles
NL1026198C2 (en) 2004-05-14 2005-11-15 Brink Internat B V Rotatable towbar.
DE102004031467B4 (en) 2004-06-30 2016-09-22 Westfalia-Automotive Gmbh Method and device for operating a motor vehicle with a trailer coupling
DE102004033041A1 (en) 2004-07-07 2006-02-02 Westfalia-Automotive Gmbh & Co. Kg Towing hitch for motor vehicles
DE202004010806U1 (en) 2004-07-10 2004-10-21 Westfalia-Automotive Gmbh & Co. Kg Trailer coupling for motor vehicles
DE202004012041U1 (en) 2004-07-31 2004-11-11 Westfalia-Automotive Gmbh & Co. Kg Trailer coupling for motor vehicles
EP1902871B2 (en) 2006-09-18 2012-11-28 WESTFALIA - Automotive GmbH Tow bar
DE102011053506A1 (en) * 2011-09-12 2013-03-14 Scambia Holdings Cyprus Ltd. Towing
DE102013007111A1 (en) * 2013-04-21 2014-10-23 Westfalia-Automotive Gmbh Towing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7233868U (en) * 1972-09-14 1972-12-21 Westfalia-Werke F Knoebel & Soehne Kg
DE19654867A1 (en) * 1995-09-13 1997-08-28 Cartron Fahrzeugteile Gmbh Swiveling trailer hitch for motor vehicles
DE19612959A1 (en) * 1996-04-01 1997-10-02 Oris Fahrzeugteile Riehle H Trailer coupling

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7233868U (en) * 1972-09-14 1972-12-21 Westfalia-Werke F Knoebel & Soehne Kg
DE19654867A1 (en) * 1995-09-13 1997-08-28 Cartron Fahrzeugteile Gmbh Swiveling trailer hitch for motor vehicles
DE19612959A1 (en) * 1996-04-01 1997-10-02 Oris Fahrzeugteile Riehle H Trailer coupling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007003773A1 (en) * 2007-01-19 2008-07-24 Westfalia-Automotive Gmbh Towing device for towing vehicle, has positive locking element movably supported at positive locking element bearing, and engaging in locking position in positive locking receiver at outer circumference of coupling arm

Also Published As

Publication number Publication date
DE19859961A1 (en) 2000-07-13

Similar Documents

Publication Publication Date Title
US5634689A (en) Articulated fitting for seats with adjustable backrest, in particular motor vehicle seats
US8806700B2 (en) Wiper blade connector
US6783144B2 (en) Interchangeable hitch ball having plunger with J-shaped channel
US6193261B1 (en) Quick release hitch pin
US6189910B1 (en) Retractable trailer hitch
US6789815B2 (en) Stowable-lock, convertible-pintle hitch
US4773692A (en) Device for guiding of air flow on vehicles
DE102009054047B4 (en) Lock release system for a door assembly of a vehicle
US6092778A (en) Assembly for adjustably mounting vehicle external mirror
EP1279563B1 (en) Motor vehicle brake or clutch pedal
US6139043A (en) One-piece pintle hitch
KR100902981B1 (en) Geared fitting apparatus for a vehicle seat
EP1170175B1 (en) Foldable exterior rear view mirror for a vehicle
US4346863A (en) Attachment device for a brake hose
US6915671B2 (en) Apparatus for locking a motor-vehicle steering shaft
US7048071B1 (en) Adjustable link assembly
US8857910B2 (en) Apparatus for moving headrest
US20050077690A1 (en) Chuck with locking system
ES2357330T3 (en) Connection device for the articulated connection of a windshield blade with a windshield arm.
US5133106A (en) Caster with lock
DE69433363T2 (en) Rear folded position movable mirror arrangement with resetting spring tension
EP1741572B2 (en) Trailer coupling
EP3013646B1 (en) Joint device for pivotally connecting a first and a second joint arm, as well as a mirror retainer and a mirror comprising such a joint device
US4475754A (en) Pull out door handle assembly
US5272935A (en) Hand brake with an adjusting device for a motor vehicle

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8127 New person/name/address of the applicant

Owner name: WESTFALIA-AUTOMOTIVE GMBH & CO. KG, 33378 RHEDA-WI

8304 Grant after examination procedure
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: WESTFALIA-AUTOMOTIVE GMBH, 33378 RHEDA-WIEDENB, DE

R071 Expiry of right