DE7009023U - TOWING EQUIPMENT, ESPECIALLY FOR MOTOR VEHICLES. - Google Patents

Description

Mario Marocco, 7141 Winzerhausen near Ludwigsburg, Furtweg 273

"Towing device, especially for motor vehicles"

As a towing device for motor vehicles, such as damaged ones Passenger cars, tow ropes are commonly used. However, such tow ropes have the disadvantage that the vehicle being towed will come close to the towing vehicle or even collide with it when it brakes can. The tow ropes can be around the axis of the towing or towed vehicle wrap around or hinder or endanger driving in any other way. The ropes are also often subject to strong jerky stresses that can cause the ropes or the connecting parts to tear.

The subject of the invention is a towing device that can cope with the changing stresses between the pulling and the towed vehicle Vehicle has grown, the maintenance of an even distance between the two vehicles is guaranteed and can also be folded into a small space. The invention accordingly consists essentially in the fact that the essentially telescopic into one another and up to Pipe parts that can be pushed apart to form stops with stepped

System diameter existing towing device has conical pipe parts, the inner diameter their narrower ends smaller than the outer diameter of the other ends of the respective adjacent pipe parts smaller Diameter stage are. Such a design results in a particularly stable construction.

Here, the narrower ends of the tube parts can themselves Form stops for the extended pipe parts of the smaller diameter stage.

Preferably, however, locking devices are provided, for example with resilient pins that can be pressed in, which are known per se, by means of which the extended tubular parts can be locked against further displacement, specifically against further apart as well as against unintentional sliding into one another. _fc

The conical design of the fohrteile also offers the advantage that if the locking device fails, e.g. when the springs or the like pressing the locking pins outwards break, the narrow ends of the pipe parts themselves as Safety stops work and prevent the pipe parts from being pulled apart and loosened from one another.

To connect the towing device, it is advisable to use eyelets or hook-shaped elements to which the telescopically collapsible pipe parts can be rotated about the pipe axis.

• · ♦

- 3 are closed.

In the drawing is an exemplary embodiment of the invention shown. Show here

Fig. 1 is a side view of a towing device according to the invention with conical tube parts in the extended state,

Fig. 2 shows the same device in a collapsed state,

Fig. 3 to be attached to the vehicle holder for the connection the towing device and

FIG. 4 shows a detail from FIG. 1 corresponding to circle 4 in a longitudinal section through the junction of two pipe parts on a larger scale.

The towing device shown in the figures consists of five pipe parts 10, 11, 12, 15 and 14, the pipe part 14 optionally can also be designed at least partially as a full part. The pipe parts are conical with each other graduated average diameters, with the pipe part of the larger diameter step, e.g. 13, at its narrower end (at 13a, FIG. 4) an inner diameter which is smaller than the outer diameter of the next smaller diameter step, e.g. 14, on its further End (at l4a) is. In the case of a telescopic pull-out from the state according to FIG. 2 into the state according to FIG Therefore, the narrower ends of the individual pipe parts can simultaneously stop the pipe parts of the adjacent smaller ones

I I »I >> 1 ftf ·· ··

II)> a t

II · »t t t · ·

ti)) a

Form a diameter step so that, under certain circumstances, special stops, which prevent the individual pipe parts from being pulled apart completely, can be saved.

It is useful, however, so that the pipe parts of the towing device do not move when pulled apart under great force jam into one another and thus can only be pushed together again with difficulty, or so that they are not accidentally pushed into one another, for example when braking the towing vehicle; : 'the, locking devices 15 provided, the Lock the pipe parts in the pulled apart state. For this purpose, locking pins 16 are preferably used, which are mounted in bores 17 of the respective inner tube so as to be radially displaceable to a limited extent and, advantageously in pairs, diagonally to one another arranged opposite, pressed apart by a common spring 18 supported in the hollow interior of the pins l6 will. When the device is pushed together (Fig. 2), these pins are inserted through the respective outer tube parts kept depressed, but jump under the action of the Spring 18 into the bores 19 of the respective outer pipe parts, as soon as the pipe parts are in the extended state according to Flg. reach. To push the device together again, the locking pins 16 are against the spring action by hand or by means using a suitable tool to push it back into the pipes. The storage of the pins 16 in the bores 17 must of course be dimensioned so that they cannot leave the bores 17 even when they are pressed in

To connect the device to mr ·. For existing or towed vehicles, the Endrorιcexle iO and l4 are provided with eyelet-shaped connecting elements 20 which are rotatably connected to the associated pipe parts, for example by means of sleeves 21 or the like., About the pipe longitudinal axis. To attach the loop-shaped connection elements 20 to the vehicles, special connection parts can be provided if necessary, of which, for example, FIG. 5 shows an embodiment 22. This is provided with an opening 23 for suspending the connecting elements 20 and, for example, with bores 24 for fastening at suitable points on the vehicle.

To secure against slipping out of the connection or holding elements, spring action can be used in a manner known per se standing pivotable locking members 25 close the openings of the loop-shaped or hook-shaped connecting elements 20. Preferably, the latter with a coating 26 made of rubber or the like. provided or embedded in a suitable material, which prevents rattling of the connection elements in the connection parts 22 arranged on the vehicle.

Claims (6)

11.3-1970 - 6 - claims: 1. Towing device, especially for motor vehicles, with from individual telescoping into each other and up to Stops telescoping tubular parts of graduated diameter, characterized in that the Tube parts (10,11,12,13, l4) are conical and the inner diameter of their narrower ends (e.g. at 13a) smaller than the outer diameter of the other ends (e.g. at l4a) of the respective adjacent pipe parts smaller diameter stage. 2. Towing device according to claim 1, ge *: ennzelehnet through Locking devices (15) * by means of which the extended pipe parts can be locked against further displacement. 3. Towing device according to claim 2, characterized in that that the locking devices (15) are mounted approximately radially in the inner tube part (e.g. 14), under spring pressure (l8) engaging in bores (19) of the respective outer pipe part (e.g. 13), applied from the outside by the spring force Have retractable locking pins (l6). 4. towing device according to claim 3 * characterized in that that two locking pins (16) are arranged diagonally opposite one another and preferably through a common one with their ends in the hollow interior of the pins supported spring (l8) are loaded. r · ■ » 5 <towing device according to one of claims 1 to 4, characterized by serving as Ansohluöelemente eyelet or hook-shaped elements (20) to which the ear parts slide together telescopically (10 to LA) are rotatably connected to the pipe axis 6. Towing device according to one of claims 1 to 5 *, characterized in that the connecting elements (20) with provided with a coating made of rubber or a similar material or in such a material are embedded.