SI9700082A

SI9700082A - Height-adjustable traction device for trailers

Info

Publication number: SI9700082A
Application number: SI9700082A
Authority: SI
Inventors: Guenter Dowe
Original assignee: Bpw Bergische Achsen Kg
Priority date: 1996-04-29
Filing date: 1997-04-03
Publication date: 1997-12-31
Also published as: EP0805081A3; HUP9700824A3; DE19617062C2; SI9700082B; EP0805081A2; HUP9700824A2; EP0805081B1; PL319713A1; HU9700824D0; DE59703534D1; DE19617062A1; CZ127697A3

Abstract

The deflection lever (9) is located on the part of the towing arm (1) connected to the trailer frame and connected to the drawbar (6) by a Bowden cable (10). The conduit (10b) of the Bowden cable is connected by its front end to the drawbar and by the rear end to a rigid point on the towing arm (1) or on the trailer frame. The wire (10a) of the cable by its front end is connected on the height adjustable part (4) of the towing arm and by its rear end connected to the deflection lever.

Description

BPW Bergische Achsen Kommanditgesellschaft Ohlerhammer/Wiehl, NemčijaBPW Bergische Achsen Kommanditgesellschaft Ohlerhammer / Wiehl, Germany

Po višini prestavljiva vlečna naprava za priklopna vozilaHeight adjustable towbar for trailers

Izum zadeva po višini prestavljivo vlečno napravo za priklopna vozila z naletno zavorno napravo, ki pri relativnem premiku med vlečnim drogom, povezanim s sklopko za vlečno vozilo, in vlečnim ojesom, povezanim z okvirom priklopnega vozila, preko preusmernega vzvoda deluje na zavorno drogovje.The invention relates to a height-adjustable trailer hitch with a collision braking device which acts on the brake lever via a retractable lever at a relative displacement between the drawbar connected to the drawbar coupling and the drawbar connected to the frame of the trailer.

Tovrstne po višini prestavljive vlečne naprave so znane v raznih izvedbah.Such height-adjustable towing devices are known in various embodiments.

Izum je osnovan na nalogi, nadalje spopolniti znane vlečne naprave z vidika poenostavitve konstrukcije in strežbe.The invention is based on the task of further refining the known traction devices in terms of simplification of construction and maintenance.

Rešitev tako definirane naloge z izumom je značilna po tem, da je preusmerni vzvod razporejen na delu vlečnega ojesa, povezanem z okvirom priklopnega vozila, in z vlečnim drogom povezan preko poteznega vrvnega vodila.The solution of the defined task of the invention is characterized by the fact that the diversion lever is arranged on the part of the drawbar connected to the frame of the trailer and connected to the drawbar via a pull rope guide.

S to izumsko nadaljnjo spopolnitvijo po višini prestavljive vlečne naprave se doseže prednost, da ni le zmanjšana teža po višini prestavljivega dela vlečnega ojesa, s tem ko je preusmerni vzvod prestavljen na z okvirom vozila povezani del vlečnega ojesa, ampak je tudi povečan pri dosedanji izvedbi zaradi preusmernega vzvoda omejen odmik od tal pri spuščenem vlečnem ojesu, saj do prestave prenosa sile v zadevi sil, pojavljajočih se iz naletne zavorne naprave, pride pri izumski spopolnitvi šele na ojesni cevi, tako da lahko na po višini prestavljivem delu vlečnega ojesa uporabimo manjše prenosne elemente.With this inventive refinement of the height of the movable towing device, it is advantageous that not only is the weight reduced by the height of the movable part of the drawbar by shifting the retractable lever to the frame connected to the vehicle frame, but is also increased in the previous embodiment because of the diversion lever is a limited distance from the ground when the drawbar is lowered, since the transfer of force in the case of forces arising from the impact braking device is only accomplished on the axial tube, so that smaller gear elements can be used on the height-adjustable part of the drawbar. .

Po nadaljnji značilnosti izuma je cevasti del poteznega vrvnega vodila na prednjem koncu povezan z vlečnim drogom in na zadnjem s trdno točko na ojesni cevi ali na okviru priklopnega vozila, vrvni del poteznega vrvnega vodila pa s svojim prednjim koncem na po višini prestavljivem delu vlečnega ojesa in s svojim zadnjim koncem povezan s preusmernim vzvodom. Na po višini prestavljivem delu vlečnega ojesa je zatorej razporejena le aktivirna naprava naletne naprave, v danem primeru z blažilnikom tresljajev. Sila se na preusmerni vzvod, ki hkrati deluje kot prestavni člen, prenaša izključno preko vrvnega poteznega vodila.According to a further feature of the invention, the tubular portion of the draw rope guide at the front end is connected to the drawbar and at the rear by a solid point on the axle tube or on the trailer frame, and the drawstring rope part is connected to its front end by a height adjustable part of the drawbar and with its rear end connected to a diversion lever. Therefore, only the actuating device of the on-board device, in the case of vibration dampers, is arranged on the height-adjustable part of the drawbar. The force is transmitted solely to the diversion lever, which simultaneously acts as a gear link, via the rope puller.

Na priloženih skicah je predstavljen izvedbeni primer izumske vlečne naprave in pri tem kažejo sl. 1 po višini prestavljivo vlečno napravo v pogledu od strani, sl. 2a shematično predstavitev prenosne naprave v začetnem stanju, in sl. 2b skici sl. 2a odgovarjajočo predstavitev po aktiviranju naletne zavorne naprave.The accompanying drawings show an embodiment of an invention of a traction device, and in this respect Figs. 1 is a side view of an adjustable towbar; FIG. 2a is a schematic representation of the portable device in its initial state, and FIG. 2b. 2a the corresponding representation after activation of the on-board braking device.

Vlečna naprava, kot je predstavljena v obliki primera .izvedbe na sl. 1, obsega vlečno oje 1, kije trdno povezano z okvirom črtkanopikčasto nakazanega priklopnega vozila 2. Na prednjem koncu vlečnega ojesa 1 je nad veznim delom 3 razporejen po višini prestavljiv del 4. Prestavitev po višini poteka na znan način z zavihtitvijo veznega dela 3 relativno glede na vlečno oje 1 okoli nihalne osi 3a in - za dosego potrebne vzporednosti - po višini prestavljivega dela 4 relativno glede na vezni del 3 okoli nihalne osi 3b.The towing device as shown in the example of the embodiment in FIG. 1, comprises a tow axle 1 which is firmly connected to the frame of the dotted line-mounted trailer 2. At the front end of the tow axle 1, a height-adjustable part 4 is arranged above the connecting part 3. The height adjustment takes place in a known manner by rotating the connecting part 3 relative to to the drawbar 1 about the pivot axis 3a and - to achieve the required parallelism - the height of the adjustable part 4 relative to the coupling part 3 about the pivot axis 3b.

Na po višini prestavljivem delu 4 vlečnega ojesa 1 je razporejena naletna zavorna naprava, ki obsega ohišje 5, v katerem je vzdolžno gibljivo voden vlečni drog 6. Ta vlečni drog 6 je na svojem prednjem, na skici nepredstavljenem koncu opremljen s sklopko za vlečno vozilo.On the height-adjustable section 4 of the drawbar 1, there is a running brake device comprising a housing 5 in which the drawbar 6 is guided along a longitudinally movable rod. This drawbar 6 is provided with a drawbar coupling at its front, not shown in the end.

Pri zavrtju vlečnega vozila se zaradi vztrajnosti priklopnega vozila 2 s po višini prestavljivim delom 4 vlečnega ojesa povezano ohišje 5 naletne zavorne naprave premakne relativno glede na vlečni drog 6 naprej. Ta relativni premik se pri izvedbenem primeru duši s pomočjo blažilnika 7 sunkov, razporejenega v naletni zavorni napravi. Ta relativni premik med vlečnim drogom 6, povezanim s sklopko za vlečno vozilo, in po višini prestavljivim delom 4 vlečnega ojesa 1, povezanim s priklopnim vozilom 2, se izkoristi za aktiviranje zavornega drogovja 8, ki na v skicah neprikazano zavorno napravo izvaja vlečno silo.When the towing vehicle is rotated, due to the persistence of the trailer 2 with the height adjustable part 4 of the drawbar, the connected housing 5 of the oncoming braking device moves relative to the drawbar 6 forward. In the embodiment, this relative displacement is damped by a 7 shock absorber arranged in the oncoming braking device. This relative displacement between the towing rod 6 connected to the coupling of the towing vehicle and the height-adjustable part 4 of the towing axle 1 connected to the trailer 2 is used to activate the brake rod 8, which exerts a tractive force on the sketched device.

V ta namen prednji konec zavornega drogovja 8 uprijema v preusmerni vzvod 9, ki je pri izvedbenem primeru s svojim spodnjim koncem s pomočjo ležiščnega sornika 9a nihalno uležiščen na ojesni cevi 1.For this purpose, the front end of the brake rod 8 is restrained by a diversion lever 9 which, with its lower end, is pivotably mounted on the axial pipe 1 by means of a bearing bolt 9a.

Na zgornjem koncu tega preusmemega vzvoda 9 uprijema zadnji konec vrvnega dela lOa poteznega vrvnega vodila 10, katerega cevni del lOb je na svojem prednjem koncu povezan z vlečnim drogom 6 in na svojem zadnjem koncu s fiksno točko na ojesni cevi 1. Prednji konec vrvnega dela lOa je s pomočjo sornika 11, ki prečka podolgovato luknjo 6a v vlečnem drogu 6, pritrjen na ohišju 5 naletne zavorne naprave kot tudi na po višini prestavljivem delu 4 vlečnega ojesa 1.At the upper end of this reversing lever 9, the rear end of the rope portion lOa of the sliding rope guide 10 is restrained, the pipe portion lOb of which at its front end is connected to the drawbar 6 and at its rear end to a fixed point on the axial tube 1. The front end of the rope portion lOa by means of a bolt 11 which crosses the elongated hole 6a in the drawbar 6, it is secured to the housing 5 of the inertia braking device as well as to the height adjustable part 4 of the drawbar 1.

S skic sl. 2a in 2b se vidi način delovanja zgoraj opisane naprave, pri čemer skica sl. 2a kaže začetno stanje. Vlečni drog 6 se nahaja v svojem prednjem končnem položaju znotraj ohišja 5 naletne zavorne naprave. Sornik 11, ki je prittjen v ohišju 5 in v po višini prestavljivem delu 4 vlečnega ojesa 1, leži v zadnjem koncu podolgovate luknje 6a, izvedene v vlečnem drogu 6. ₍ From the sketches of FIG. 2a and 2b show the operation of the apparatus described above, with the sketch of FIG. 2a shows the initial state. The drawbar 6 is located in its front end position within the housing 5 of the inertia braking device. The bolt 11, which is secured in the housing 5 and in the height-adjustable part 4 of the drawbar 1, lies at the rear end of the elongated hole 6a made in the drawbar 6. ₍

Če tedaj priklopno vozilo 2 naleti na zavrto vlečno vozilo, se vlečni drog 6 naletne zavorne naprave premakne za v skicah sl. 2a in 2b vrisano pot X relativno glede na ohišje 5, tako da nastane stanje, kot je narisano na sl. 2b. Ker v ohišju 5 pritrjeni sornik 11 pri tem relativnem premiku tvori fiksno točko, se vrvni del lOa pritegne relativno glede na cevni del lOb poteznega vrvnega vodila 10 v levo po sl. 2. Zadnji konec vrvnega dela lOa, ki je preko sklopke 12 povezan z zgornjim koncem preusmemega vzvoda 9, temu ustrezno zavihti pri izvedbenem primeru ta preusmeriti vzvod 9 proti urnemu smislu, kot vidimo iz primerjave skic sl. 2a in 2b. Na ta način je med sklopko 12 in ležiščnim sornikom 9a na preusmernem vzvodu 9 prijemajoče zavorno drogovje 8 vlečno aktivirano, da se doseže želeni zavorni učinek.If trailer 2 then encounters a towed towed vehicle, the towbar 6 of the oncoming braking device is moved behind in FIG. 2a and 2b show the path X relative to the housing 5, so that the condition as shown in FIG. 2b. Since the bolt 11, which is fixed in the housing 5 at this relative displacement, forms a fixed point, the rope portion 10aa is clamped relative to the pipe portion 10b of the sliding rope guide 10 to the left according to FIG. 2. The rear end of the rope portion lOa, which is coupled via coupling 12 to the upper end of the reversible lever 9, is accordingly rotated accordingly in the embodiment, this diverting lever 9 is clockwise, as seen from the comparison of the drawings of FIG. 2a and 2b. In this way, between the clutch 12 and the bearing bolt 9a on the diverting lever 9, the gripping brake rod 8 is actuated to achieve the desired braking effect.

S skice sl. 1 lahko razberemo, da po višini prestavljivi del 4 vlečnega ojesa 1 razen naletne zavorne naprave ne nosi nikakršnih nadaljnjih delov za prenos sil, tako da nimamo opraviti ne z omejitvijo odmika od tal pri spuščenem delu 4 ne z nezaželeno masno obremenitvijo tega po višini prestavljivega dela 4.From the sketch of FIG. 1 it can be understood that the height-adjustable part 4 of the drawbar 1 does not carry any further force-transmitting parts except the impact braking device, so that neither the restriction of ground clearance at the lowering part 4 nor the undesirable mass load of this height-adjustable part 4.

Skica sl. 1 slednjič kaže, da je na ležiščnem sorniku 9a preusmemega vzvoda 9 nihalno uležiščen tudi še ročni zavorni vzvod 13, preko katerega je moč aktivirati zavoro vozila kot postavitveno zavoro, če aktiviramo preusmerni vzvod 9.Sketch of FIG. 1 shows, for the last time, that the parking brake lever 13 is also pivotally mounted on the bearing pin 9a of the reversing lever 9, through which it is possible to activate the vehicle brake as a positioning brake if the reversing lever 9 is activated.

Claims

Patent claim

1. Height adjustable towbar for trailers with an overrunning braking device which acts on the brake lever by means of a diversion lever, characterized by a relative displacement between the towing rod connected to the coupling of the towing vehicle and the towing axle connected to the frame of the trailer. the diversion lever (9) being disposed on the part of the drawbar (1) connected to the frame of the trailer and connected to the drawbar (6) via the draw rope guide (10).

Traction device according to claim 1, characterized in that the tubular portion (10b) of the pull rope guide (10) is connected at the front end to the towing rod (6) and at the rear to a solid point on the axial tube (1) or on the frame of the trailer, and the rope (lOa) of the pull rope guide (10) is connected with its forward end at the height adjustable part (4) of the drawbar (1) and connected to its rear end by a diversion lever (9).