DE2360489A1 - Rigid towing frame for car - is assembled from sectional hollow tubes with sprung clip-on fasteners - Google Patents

Abstract

Two rigid tow bars are assembled from small interlocking sections secured by coupling bolts or snap fasteners. The tow bar ends near the towing vehicle are clipped over a central towing ball while the towed vehicle is attached by two separate points using demountable clamps on the bumper, or similar fitting. The coupling ends of the tow bars are fitted with hooks which are secured by internal screw threads. The system is easily demounted and stowed in a car boot, and enables a car to be towed away without a driver in the towed vehicle.

Description

Gerhard Hickel 6 Frankfurt / Main Jaspertstrasse, 19

Device for towing road vehicles by others

The invention relates to a device for towing a driverless vehicle by another, consisting of an open pole triangle, the open side of which through the bumper of the vehicle to be towed » is formed, which is free at the top and its two Ends of suspension devices for vehicle-fixed when towing Has counterparts.

Such towing devices are known in the Form that both tow bars are firmly connected to each other · » so that only professional tow trucks use them and tow damaged vehicles without a driver can; because such a bulky towing device can ι be transported on a truck.

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Another disadvantage of the known towing devices of this type is the fact that they are in each case on Towing devices are matched to the individual vehicle types. A towing service therefore always needs several such devices,

The invention has the task of avoiding these disadvantages and of creating a towing device that is not bulky, which is also suitable for the simple towing of a controlled vehicle and which is used for all types of vehicles can be used without the need for special constructions «,

The invention achieves this in that the triangle is formed by two individual tow bars, the tow bars on the towing one Vehicle together in the middle and articulated on both sides and individually in the horizontal plane on the following vehicle, in Tensile and compressive directions are largely articulated in a form-fitting manner and that in a manner known per se on the bumper attachable counterparts are provided for one or more of the hooks.

Such a towing device can be used for towing a driverless vehicle because, despite the Use of two separate device parts enables a largely form-fitting connection in the tension and compression direction, which is also articulated in the horizontal plane is.

The positive connection is achieved most advantageously, if the ** aken of the individual rods or tubes so against or in this are retractable that the arranged on the vehicle or existing counterpart to the hook is in

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Pulling or pushing direction against the hook not or in can move only very small limits without the horizontal arrangement in its articulated manner. Movement obstructed will.

This can be achieved particularly easily and safely if open for hanging but can be spanked for towing Hooks are used that are movable in the pulling direction from and against their rod. Or, if tubes are used as rods into which the hooks can be retracted via a spindle guide.

In addition, it is possible to use this towing device to hang in the trailer coupling.

These and other advantages and features of the invention go from the exemplary embodiments shown schematically in the drawings of the invention; show it:

Fig. 1 the towing device seen in principle from above,

2 shows the same device seen from the side;

3 shows a coupling device which can be fastened to the bumper and

Fig. 4 a part of a tow bar

In the drawings, the towing vehicle is denoted by 1 and the towed vehicle is denoted by 2; the bumpers accordingly with 10 and 20; the trailer coupling with 11.

The towing device as such is marked 3, the two pipes are marked 3 0 and 31. Each tube consists of parts 32, 33 and 34, of which parts 32 and 34 are identical to one another.

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As di · tubes are arranged 32 and 3k, is the tube 32 explained _o At the end 320 of this tube so flattened that it ends as a flat profile having such a length that the hook can be drawn into the hole and is non-rotatably seated in this tube At a certain distance from the end of the pipe there is a perforated disc (321), which can be rolled up at 322 and 323, but others can also be attached.

The hook k is bent from a rod kO , which is provided with a thread at 41, on which a nut k2 can be screwed; A compression spring 324 is arranged between perforated disk 321 and nut kZ. Finally, this tube has notches 325 designed as holes, in which counter-notches of the intermediate rotating mechanism 35 can lock.

The outer diameter "ss" r of the nut kZ is chosen so that "seen in Fig. K - a socket wrench can be inserted from the right and the nut tightened or opened"

The flat profile 320 of the tube 32 has a hook-in Stop 326, which acts as a stop for the coupling piece of the vehicle di «nt. This stop, however constructed '·'; Ensures that the connection between the two vehicles is positive in both pulling and pushing directions.

The intermediate tube 33 has an indentation at both of its ends so that it can be inserted into the two tubes 32 and 3k. *,: Snap members 35 " ^Λ jump into the notches 325 after the tube has been inserted, so that the three-part tow bar represents a unit that is resistant to tension and compression. The two vehicles have two at the front and one at the rear

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Towing eye, then this version is sufficient to tow a vehicle by another controlled or driverless vehicle to be able to «

Now the vehicles have no or only one hook-in - eyelet, then the additional parts shown in Fig. 3 are used.

This is the eyelet part 5 with the eyelet 50, which from square tubes but can also consist of a plate. This ·· part, which is only shown in principle, can be combined with a be provided with elastic padding; but it can also be a special one Pad provided »one that is placed around the bumper can be so that it is protected against scratching

Two screw caps 5 <, two cover plates 52 and two counter bearings 53 are used to attach this additional part to a bumper

The towing with this device according to the invention is possible proceed as follows -

The two additional parts 5 attached to the left and right of the bumper · They can be relatively narrow for this purpose, because every one of them only needs to absorb half the tensile or compressive force *

Then the hooks 4 of the two tubes ik are each hung in an eyelet and a socket wrench is used so far that the hooks k are fixed by the stops 326 in pulling and pushing action coordinated so that the hooks can move in a horizontal plane "

Then the hooks k of the tubes 32 are placed around the neck 110 of the coupling hook 11 and tightened in the same way.

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at the pipes 3 ^, the two vagaries are on the necessary mutual The two intermediate tubes are spaced apart 33 inserted «

In itself it is also possible to first connect the two pipes 32 on the towing vehicle and the two pipes 3 ^ with their additional set parts 5, insert the intermediate pipes and then attach the additional parts 5 to the bumper 20.

, The towing vessel in any trailer coupling 11, both pipes 32 can be also attached to the bumper via an intermediate piece 5, for which purpose it is advantageous, however, if this additional part is somewhat wider than it was shown. (FIG _o 3 "right)

The three-part pole has the advantage that it can be folded up small. can be accommodated well.

A continuous tube with two hooks is quite possible k without be verziohtet k on the fixed in tension and compression direction position of the hook must · This can of the train are collected by Skibindungen- -like namely by means of a respective pivotably articulated on the tube Hebele. In the same way, a stop, similar to the stop 326, could be advanced against the hook opening with such a device, which creates the tension-proof and pressure-proof connection.

If the vehicles are connected to one another in this way, they can be towed away completely smoothly and securely in curves, whereby a significantly higher speed is also possible than when towing a rope

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Claims (3)

Gerhard Hiekel 6 Jaspertstr. Claims 1. JVorrichtung for towing an unmanned Strassmann * nfafa # - ^v ^ - S tool with another, comprising the open side formed by the impact Stang · of the vehicle to be towed wi £ d, from an open Stallgendreieck which 4 · Γ point and its Both free ends have suspension devices for a counterpart that is fixed to the vehicle during towing, characterized in that the triangle is formed by individual towing rods, which on towing the vehicle are centered together and on the following vehicle on both sides and individually in the horizontal plane Are articulated, largely form-fitting in the pulling and pushing directions and that, in a manner known per se 2. Device according to claim 1, characterized in that open hooks are used for hanging, but lockable for towing »hooks that point in the pulling direction and β · £ * Β their rods are movable, 3. Device according to one of claims 1 or 2, characterized in that g This means that tubes are used as rods, itt which siHxi «hl> ar siMt the hooks via a spindle guide, H. Device according to one of Claims 1 to 3, characterized in that each of the tow rods is at least in two parts and all rod parts can be plugged into one another by means of quick-release fasteners, 5 * Device according to one of claims 1 to k, characterized in that the hook width is chosen so that it can be placed around the neck of a towing coupling. 509824/0089 Blank