DK148770B - TRAILER CLUTCH TO VEHICLES - Google Patents
TRAILER CLUTCH TO VEHICLES Download PDFInfo
- Publication number
- DK148770B DK148770B DK190480AA DK190480A DK148770B DK 148770 B DK148770 B DK 148770B DK 190480A A DK190480A A DK 190480AA DK 190480 A DK190480 A DK 190480A DK 148770 B DK148770 B DK 148770B
- Authority
- DK
- Denmark
- Prior art keywords
- ball neck
- housing
- eccentric
- ball
- coupling
- Prior art date
Links
- 230000008878 coupling Effects 0.000 claims description 26
- 238000010168 coupling process Methods 0.000 claims description 26
- 238000005859 coupling reaction Methods 0.000 claims description 26
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/48—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting
- B60D1/52—Traction couplings; Hitches; Draw-gear; Towing devices characterised by the mounting removably mounted
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Clamps And Clips (AREA)
- Hydraulic Control Valves For Brake Systems (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Description
t48770t48770
Opfindelsen angår en anhængerkobling til køretøjer, navnlig til personbiler og bestående af et i en tværdrager anbragt nedad og i retningen bagud åbent hus og en med en koblingskugle forsynet kuglehals, som kan indsættes i huset og sammenlåses løsbart med 5 dette.The invention relates to a trailer coupling for vehicles, in particular for passenger cars and consisting of a downwardly open and in the rearwardly oriented housing and a coupling ball bearing, which can be inserted into the housing and can be releasably interlocked therewith.
Fra dansk fremlæggelsesskrift nr. 145.533 kendes en anhængerkobling af denne art. Ved denne kendte anhængerkobling fastlåses kuglehalsen i koblingshuset, ved at en drejelig arm, der har et tværgående understøtningsorgan for den forreste ende af den i kob-10 lingshuset indførte kuglehals drejes på en sådan måde, at understøtningsorganet nedefra trykker den forreste ende af kuglehalsen opad, således at en V-formet udsparing i oversiden af kuglehalsen ved dennes forreste indførte ende indgriber med en i huset fast anbragt vandret tværtap. Den drejelige arm holdes i understøtningsstillingen 15 ved hjælp af en trækfjeder og sikres i denne stilling yderligere ved hjælp af en sikringsarm, der holdes i arbejdsstilling ved hjælp af en anden trækfjeder. Denne kendte anhængerkobling har den ulempe, at de mekaniske bevægelige dele til fastlåsningen af kuglehalsens frie ende og til sikringen af dennes fastlåsning er fastgjort til koblingshu-20 set og ligger frit tilgængeligt i dette og derfor nemt tiisnavses ved kørsel på plørede veje, hvor snavs med stor kraft slynges op af baghjulene. Snavs og rust kan her bevirke, at sikringsarmen, der sikrer den drejelige arm i understøtningsstillingen, d.v.s. stillingen hvor den fastlåser kuglehalsens ende i huset, går så stramt, at dens 25 trækfjeder ikke formår at trække sikringsarmen tilbage til sikringsstillingen, således at den drejelige arm kun er utilstrækkeligt sikret mod at bevæge sig til en stilling, hvor kuglehalsen frigives. En langt alvorligere ulempe er, at den drejelige arm og sikringsarmen kun holdes i arbejdsstilling ved hjælp af deres trækfjedre. Sådanne træk-30 fjedre er i høj grad udsat for tæring, især om vinteren, hvor køretøjets baghjul slynger sne og vand blandet med vejsalt op i koblingshuset. En sådan tæring af de nævnte trækfjedre medfører stor fare for brud på disse, således at anhængerkoblingen under kørsel med en efterhængt påhængsvogn eller lignende kan udløses på grund af de 35 under kørslen optrædende stødpåvirkninger og drejningsmomenter.From Danish Patent Specification No. 145,533 a trailer coupling of this kind is known. In this known trailer coupling, the ball neck is locked in the coupling housing by rotating a rotatable arm having a transverse support member for the front end of the ball neck inserted in the coupling housing in such a way that the support member presses the front end of the ball neck from below. such that a V-shaped recess in the upper side of the ball neck engages at its front inserted end with a horizontal cross tab, fixed in the housing. The swivel arm is held in the support position 15 by means of a tension spring and is further secured in this position by means of a securing arm held in working position by another tension spring. This known trailer coupling has the disadvantage that the mechanical moving parts for locking the free end of the ball neck and for securing its locking are attached to the coupling housing and are freely accessible therein and therefore easily tapered when driving on paved roads where dirt with great force is thrown up by the rear wheels. Here, dirt and rust can cause the locking arm to secure the swivel arm in the support position, i.e. the position in which it locks the end of the ball neck in the housing goes so tight that its 25 pull spring fails to pull the locking arm back to the locking position, so that the swivel arm is only insufficiently secured to move to a position where the ball neck is released. A far more serious disadvantage is that the swivel arm and the securing arm are only held in working position by means of their pull springs. Such drag-30 springs are highly prone to corrosion, especially in winter, when the vehicle's rear wheels flush snow and water mixed with road salt into the clutch housing. Such corrosion of the said tension springs entails a great risk of breaking them, so that the trailer coupling can be triggered while driving with a trailed trailer or the like due to the shock effects and torque occurring during driving.
Formålet med opfindelsen er at udforme en anhængerkobling af den nævnte art på en sådan måde, at fremstillingen forenkles, og at den er ufølsom over for tilsnavsning. Endvidere skal alle de dele, som er nødvendige til indsætningen af kuglehalsen i huset eller til 2 148770 udtagning af kuglehalsen af huset anbringes i eller på selve kuglehalsen og være således udformede, at vedligeholdelse ikke er påkrævet.The object of the invention is to design a trailer coupling of said kind in such a way that the production is simplified and insensitive to contamination. Furthermore, all the parts necessary for inserting the ball neck into the housing or for removing the ball neck of the housing must be placed in or on the ball neck itself and be designed so that maintenance is not required.
Denne opgave løses ifølge opfindelsen ved, at der i den nederste del ved begge sider indvendigt er anbragt holdenoter for fra 5 kuglehalsen mod siderne udragende tappe, og at der på kuglehalsen er anbragt et ekscenterspændeorgan, ved hjælp af hvilket en i kuglehalsen anbragt stødstang trykkes fjedrende mod den øverste del af huset på en sådan måde, at tappene på kuglehalsen fastlåses i holdenoterne. Ved denne udformning af koblingen opnås, at der ved frem-10 stillingen både af huset og af kuglehalsen kun kræves få spåntagende arbejdsprocesser. Eventuelt snavs kan hverken besværliggøre indsætning eller udtagning af kuglehalsen. Alle bevægelige dele til fastlåsning af kuglehalsen i koblingshuset er anbragt beskyttet i selve kuglehalsen og er således ikke udsat for tilsnavsning eller tæring. I 15 perioder, hvos koblingen ikke skal anvendes, kan kuglehalsen med alle de bevægelige dele udtages af koblingshuset og opbevares på et tørt og sikkert sted.This task is solved according to the invention in that in the lower part on both sides there are retaining grooves for pivots projecting from the side to the sides and that an eccentric clamping means is arranged on the ball neck, by means of which a thrust rod inserted in the ball neck is pressed resiliently. towards the upper part of the housing in such a way that the pins on the ball neck are locked in the holding notes. In this design of the coupling, it is achieved that in the manufacture both of the housing and of the neck of the neck, only a few machining processes are required. Any debris can neither interfere with insertion or removal of the neck. All movable parts for locking the ball neck in the coupling housing are placed protected in the ball neck itself and are thus not subject to contamination or corrosion. For 15 periods when the clutch is not to be used, the ball neck with all the moving parts can be removed from the clutch housing and stored in a dry and safe place.
Ifølge en fordelagtig udformning af anhængerkoblingen kan den øverste føringsdei have en cylindrisk føringsflade med lille højde, 20 og den øverste ende af kuglehalsen kan have en tilsvarende kugleflade. Ved hjælp af denne foranstaltning opnås, at en drejning og en forskydning af kuglehaisen er mulig under dennes indsætning og udtagning, og at der alligevel opnåes en sikker fastholdelse af kuglehalsen i huset.According to an advantageous design of the trailer coupling, the upper guide day may have a cylindrical guide surface of small height, 20 and the upper end of the ball neck may have a corresponding ball surface. By means of this measure, it is possible that a rotation and a displacement of the ball lift is possible during its insertion and removal, and that a secure retention of the ball neck in the housing is nevertheless achieved.
25 Holdenoterne for de på kuglehalsen anbragte tappe kan be gyndende ved den bageste ende af huset først forløbe i det væsentlige vandret og derefter være bøjede nedad, således at der fås en bajonetlåsagtig føring for kuglehalsens tappe ved indsætning og frigørelse af kuglehalsen.The holding notes for the pins placed on the ball neck may, initially at the rear end of the housing, first extend substantially horizontally and then bend downwardly so as to obtain a bayonet-locking guide for the ball neck pins upon insertion and release of the ball neck.
30 Ekscenterspændeorganet kan bestå af en i kuglehalsen lejret og med et håndtag forbunden ekscentrik, der på stedet for sin største ekzentricitet har en rulle til eliminering af større friktion. I kuglehalsen kan være anbragt et med ekscentrikken samvirkende trykstempel, mod hvilket stødstangen er understøttet over en stabel 35 tallerkenfjedre. I kuglehalsen kan endvidere være anbragt en trykfjeder, som trykker stødstangen med trykstemplet i retningen mod ekscentrikken.The eccentric clamping member may consist of an eccentric mounted in the ball neck and with a handle, which at its greatest eccentricity has a roller for eliminating greater friction. A ball piston cooperating with the eccentric may be arranged in the ball neck against which the thrust bar is supported over a stack of 35 plate springs. In addition, a pressure spring may be arranged in the ball neck, which pushes the thrust bar with the pressure piston in the direction towards the eccentric.
Den frie ende af stødstangen, som trykkes mod huset, kan særligt hensigtsmæssigt være udformet konisk, og i huset kan være 148770 3 udformet en konisk forsænkning, der ligger ekscentrisk i forhold til stødstangen på en sådan måde, at kuglehalsen over stødstangen til stadighed trykkes i samme tværgående retning.The free end of the thrust bar pressed against the housing may be particularly conveniently conical shaped, and in the housing may be a conical recess which is eccentric to the thrust bar in such a manner that the ball neck above the thrust bar is continuously pressed into place. same transverse direction.
På ekscentrikken kan være anbragt et endeanslag, som lig-5 ger an mod trykstemplet, når kuglehalsen er fastlåst i huset.An eccentric stop may be provided on the eccentric which rests against the piston when the ball neck is locked in the housing.
Ekscentrikkens omdrejningsaksel kan fordelagtigt ligge til siden for stødstangens og trykstemplets længdemidterakse på en sådan måde, at der, når kuglehalsen er fastlåst, virker et drejningsmoment om ekscentrikkens aksel, som opfanges af endeanslaget. Herved 10 opnås, at anhængerkoblingen får en indbygget sikring.The eccentric rotary shaft may advantageously lie to the longitudinal center axis of the thrust bar and thrust piston in such a way that, when the ball neck is locked, a torque acts on the eccentric shaft which is intercepted by the end stop. Hereby 10 is achieved that the trailer coupling is provided with a built-in fuse.
Endelig kan der på kuglehalsen være anbragt en fjederbelastet sikringsstift, der, når kuglehalsen er fastlåst i huset, indgriber med en boring i ekscentrikken.Finally, a spring-loaded locking pin may be mounted on the ball neck which, when the ball neck is locked in the housing, engages with a bore in the eccentric.
På tegningen er en udførelsesform for anhængerkoblingen 15 ifølge opfindelsen anskueliggjort. På tegningen viser:In the drawing, an embodiment of the trailer coupling 15 according to the invention is illustrated. In the drawing:
Fig. 1 et længdesnit gennem huset, fig. 2 et tværsnit gennem huset efter linien Il-Il i fig. 1,FIG. 1 is a longitudinal section through the housing; FIG. 2 is a cross-section through the housing along the line II-II in FIG. 1
fig. 3 huset ifølge fig. 1 med indsat kuglehals, og 20 fig. 4 et snit gennem kuglehalsen efter linien IV-IVFIG. 3 shows the housing of FIG. 1 with inserted ball neck, and FIG. 4 is a section through the ball neck along line IV-IV
i fig. 3.in FIG. Third
Neden under en bageste kofanger på en personbil er der som vist i fig. 1 anbragt en af pressede flader bestående tværdrager 1, et af en smedet eller støbt del bestående ved hjælp af skruer i 25 tværdrageren 1 fastgjort hus 2 til en anhængerkobling. Huset 2 er åbent både i retningen nedad og over en betydelig del af sin højde i retningen bagud. I den øverste lukkede del befinder der sig en cylindrisk føringsflade 3 med lille højde. I den nederste del er der, som det også fremgår af fig. 2, ved begge sider anbragt bajonetagti-30 ge holdenoter 4, der begyndende ved den bageste ende af huset 1 først forløber i det væsentlige vandret og derefter forløber nedad.Below a rear bumper of a passenger car, as shown in FIG. 1, a transverse carrier 1 consisting of a pressed surface, one of a forged or molded part consisting of screws in the transverse carrier 1 is secured to a trailer coupling 1. The housing 2 is open both in the downward direction and over a considerable portion of its height in the backward direction. In the upper closed part is a cylindrical guide surface 3 of small height. In the lower part, as can also be seen in FIG. 2, bayonet-like holding notes 4 arranged on both sides, starting at the rear end of housing 1, first extend substantially horizontally and then extend downward.
Det i fig. 1 og 2 viste hus 2 tjener ifølge fig. 3 til løsbar fastlåsning af en kuglehals 5 med en ikke vist koblingskugle. Kuglehalsen 5 er ved sin øverste frie ende af den i huset 2 indsatte del 35 forsynet med en kugleflade 6, hvis diameter svarer til diameteren af føringsfladen 3 i huset 2. Kuglehalsen 5 har mod siderne udragende tappe 7, der griber ind i holdenoterne 4 i huset 2. En fastlåsning af kuglehalsen 5 i huset 2 sker ved hjælp af et ekscenterspændeorgan 8.The FIG. 1 and 2 serve according to FIG. 3 for releasably locking a ball neck 5 with a coupling ball not shown. The ball neck 5 is provided at its upper free end of the portion 35 inserted in the housing 2 with a ball surface 6, the diameter of which corresponds to the diameter of the guide surface 3 in the housing 2. The ball neck 5 has tabs 7 projecting against the sides which engage the retaining notes 4 in the housing. housing 2. A locking of the ball neck 5 in the housing 2 is effected by an eccentric clamping member 8.
Dette ekscenterspændeorgan 8 omfatter en i kuglehalsen 5 lejret 148770 4 ekscentrik 11, der ved hjælp af et håndtag 9 kan drejes om akslen 10, og som pi stedet for sin største ekscentricitet har en rulle 12.This eccentric clamping member 8 comprises an eccentric 11, which is located in the ball neck 5, which can be rotated by means of a handle 9 about the shaft 10 and which has a roller 12 in place of its greatest eccentricity.
Desuden er der pi ekscentrikken 11 anbragt et endeanslag 13. Mod ekscentrikken 11 understøttes et i kuglehalsen 5 ført trykstempel 14, 5 som igen over en stabel tallerkenfjedre 15 understøtter en stødstang 16. Stødstangen 16 og trykstemplet 14 samt staplen af tallerkenfjedre 15 trykkes ved hjælp af en mod kuglehalsen 5 understøttet trykfjeder 17 i retning mod ekscentrikken 11.In addition, at the eccentric 11 there is provided an end stop 13. Against the eccentric 11 a pressure piston 14, 5 inserted in the ball neck 5 is supported, which again over a stack of plate springs 15 supports a push rod 16. The push rod 16 and the pressure piston 14 as well as the stack of plate springs 15 are pressed by means of a compression spring 17 supported against the ball neck 5 in the direction of the eccentric 11.
Den øverste frie ende af stødstangen 16, som rager ud af 10 kuglehalsen, er forsynet med en konisk ansats 18, der griber ind i en konisk forsænkning 19 i huset 2. Forsænkningen 19 ligger ek-scentrisk i forhold til stødstangen 16, således at kuglehalsen til eliminering af eventuelt spillerum mellem den kugleformede flade 6 og den cylindriske føringsflade 3 ti! stadighed trykkes i samme retning.The upper free end of the thrust bar 16, which protrudes from the 10 ball neck, is provided with a tapered groove 18 which engages a tapered recess 19 in the housing 2. The recess 19 is eccentric to the thrust rod 16, so that the ball neck for eliminating any clearance between the spherical surface 6 and the cylindrical guide surface 3 ti! constantly pressed in the same direction.
15 Ekscentrikken 11's rulle 12 ligger i den i fig. 3 viste stil ling af samtlige dele, hvor kuglehalsen 5 er fastlåst i huset 2, forskudt til siden for ekscentrikken 11's aksel 10 på en sådan måde, at der som følge af tallerkenfjedrene 15's kraft virker et drejningsmoment om akslen 10, som opfanges af endeanslaget 13, der ligger an 20 mod trykstemplet 14. Herved opnås, at ekscentrikken 11 ikke utilsigtet kan bevæge sig til frigørelsesstillingen. Som en ekstra sikring er der anbragt en sikringsstift 20, der som vist i fig. 4 er lejret på kuglehalsen 5, og ved hjælp af en fjeder 21's kraft holdes i indgreb med en boring 22 i ekscentrikken 11.15 The roll 12 of the eccentric 11 is in the one shown in FIG. 3 shows all parts where the ball neck 5 is locked in the housing 2 offset to the shaft 10 of the eccentric 11 in such a way that due to the force of the plate springs 15 a torque acts on the shaft 10 which is intercepted by the end stop 13 , which abuts 20 against the pressure piston 14. This results in the fact that the eccentric 11 cannot inadvertently move to the release position. As an additional fuse, a fuse pin 20 is provided which, as shown in FIG. 4 is mounted on the ball neck 5, and by means of the force of a spring 21 is held in engagement with a bore 22 in the eccentric 11.
25 Til ophævelse af kuglehalsen 5's fastlåsning i huset 2 træk kes sikringsstiften 20 ud, hvorefter håndtaget 9 drejes i pilretningen 23, således at ekscentrikken 11 drejes, og tallerkenfjedrene 15 gøres trykløse, og trykfjederen 17 kan trykke stødstangen 16 med trykstemplet 14 nedad. I denne stilling af ekscenterspændeorganet 8 kan 30 kuglehalsen 5 hæves så langt i huset 2 og derefter svinges opad, at dens tappe 7 glider langs holdenoterne 4 og ud af huset 2. Kuglehalsen kan derefter trækkes skråt bagud ud af huset.25 To release the locking pin 5 in the housing 2, the retaining pin 20 is pulled out, then the handle 9 is turned in the arrow direction 23 so that the eccentric 11 is turned and the plate springs 15 are depressurized and the pressure spring 17 can push the thrust bar 16 down with the piston 14. In this position of the eccentric clamp 8, the ball neck 5 can be raised so far into the housing 2 and then pivoted upward that its pin 7 slides along the holding notes 4 and out of the housing 2. The ball neck can then be pulled obliquely out of the housing.
Indsætningen og fastlåsningen af kuglehalsen sker i omvendt rækkefølge.The insertion and locking of the ball neck takes place in the reverse order.
3535
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803000824 DE3000824A1 (en) | 1980-01-11 | 1980-01-11 | TRAILER COUPLING FOR VEHICLES (AK 5) |
| DE3000824 | 1980-01-11 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK190480A DK190480A (en) | 1981-07-12 |
| DK148770B true DK148770B (en) | 1985-09-23 |
| DK148770C DK148770C (en) | 1986-03-10 |
Family
ID=6091850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK190480A DK148770C (en) | 1980-01-11 | 1980-04-30 | TRAILER CLUTCH TO VEHICLES |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE884316A (en) |
| CH (1) | CH644313A5 (en) |
| DE (1) | DE3000824A1 (en) |
| DK (1) | DK148770C (en) |
| FR (1) | FR2473428A1 (en) |
| GB (1) | GB2067147B (en) |
| IT (1) | IT1127015B (en) |
| NL (1) | NL8001588A (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3013408A1 (en) * | 1980-04-05 | 1981-10-08 | Peka-Fahrzeugbau Gmbh + Co Kg, 7500 Karlsruhe | DETACHABLE BALL ROD WITH BRACKET |
| EP0047961B1 (en) * | 1980-09-11 | 1984-11-21 | Westfalia-Werke Knöbel GmbH & Co. | Ball-neck coupling for motor vehicles |
| DE3204024C2 (en) * | 1982-02-05 | 1983-12-08 | Daimler-Benz Ag, 7000 Stuttgart | Trailer coupling for vehicles |
| DE3207522A1 (en) * | 1982-03-03 | 1983-09-08 | Oris-Metallbau KG Hans Riehle, 7141 Möglingen | Trailer coupling for vehicles |
| DE3223719C2 (en) * | 1982-06-25 | 1986-11-13 | Daimler-Benz Ag, 7000 Stuttgart | Trailer coupling for vehicles |
| DE3224014A1 (en) * | 1982-06-28 | 1983-12-29 | Oris-Metallbau KG Hans Riehle, 7141 Möglingen | TRAILER COUPLING FOR VEHICLES, ESPECIALLY FOR PERSONAL VEHICLES (AK 5/2) |
| DE3230364A1 (en) * | 1982-08-14 | 1984-02-16 | Oris-Metallbau KG Hans Riehle, 7141 Möglingen | Coupling device, in particular for passenger cars |
| DE3317453C2 (en) * | 1983-05-13 | 1986-10-02 | Daimler-Benz Ag, 7000 Stuttgart | Trailer coupling for vehicles |
| DE3327051A1 (en) * | 1983-07-27 | 1985-02-07 | Thomas Dr.-Ing. 7500 Karlsruhe Dickmann | DETACHABLE BALL ROD WITH BRACKET |
| DE3423730A1 (en) * | 1984-06-28 | 1986-01-09 | Oris-Metallbau KG Hans Riehle, 7141 Möglingen | TOWING DEVICE FOR PARTICULAR PERSONAL VEHICLES (K 9A) |
| NL8503537A (en) * | 1985-12-20 | 1987-07-16 | Tobo Bv | DETACHABLE TOWBAR ASSEMBLY. |
| DE3806053A1 (en) * | 1988-02-26 | 1989-09-07 | Oris Metallbau Kg Riehle H | TRAILER COUPLING FOR VEHICLES, IN PARTICULAR MOTOR VEHICLES |
| DE3842901A1 (en) * | 1988-12-16 | 1990-06-21 | Dickmann Thomas | Towing device |
| DE4235843C2 (en) * | 1992-10-23 | 1996-07-11 | Mvg Metallverarbeitunggesellsc | Trailer coupling |
| CN110588260B (en) * | 2019-08-27 | 2022-11-18 | 江苏大学 | Connecting ball head and connecting system of anti-loosening pulling type motor home |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE288119C (en) * | ||||
| US2978260A (en) * | 1959-06-08 | 1961-04-04 | Hebeisen Ulrich | Dismountable trailer hitch |
| US3037791A (en) * | 1961-02-24 | 1962-06-05 | Ralph L Travis | Drawbar attached traction booster for towing vehicles |
| DE1630928B2 (en) * | 1967-05-02 | 1976-06-16 | Peka-Fahrzeugbau Eberhardt Kg, 7500 Karlsruhe | HANGING DEVICE |
| BE792007A (en) * | 1971-11-30 | 1973-03-16 | Poole Harold G | IMPROVEMENTS TO TOWING LINKS |
-
1980
- 1980-01-11 DE DE19803000824 patent/DE3000824A1/en active Granted
- 1980-03-18 NL NL8001588A patent/NL8001588A/en not_active Application Discontinuation
- 1980-03-27 IT IT48273/80A patent/IT1127015B/en active
- 1980-04-10 FR FR8008067A patent/FR2473428A1/en active Granted
- 1980-04-15 CH CH289480A patent/CH644313A5/en not_active IP Right Cessation
- 1980-04-25 GB GB8013764A patent/GB2067147B/en not_active Expired
- 1980-04-30 DK DK190480A patent/DK148770C/en not_active IP Right Cessation
- 1980-07-15 BE BE0/201409A patent/BE884316A/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL8001588A (en) | 1981-08-03 |
| GB2067147B (en) | 1983-10-19 |
| FR2473428B1 (en) | 1983-09-09 |
| DK190480A (en) | 1981-07-12 |
| BE884316A (en) | 1980-11-03 |
| IT8048273A0 (en) | 1980-03-27 |
| DK148770C (en) | 1986-03-10 |
| DE3000824C2 (en) | 1988-02-11 |
| CH644313A5 (en) | 1984-07-31 |
| FR2473428A1 (en) | 1981-07-17 |
| GB2067147A (en) | 1981-07-22 |
| IT1127015B (en) | 1986-05-21 |
| DE3000824A1 (en) | 1981-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |