SU1689195A1 - Trailer coupling - Google Patents

Description

one

(21) 4774015/11

(22) 25 12 89

(46) 07.11 91 Bul

(71) Belarusian Polytechnic Institute

(72) G.А.Ta.Novskiy V.V. Telenchenko and V.A. Andreev (53) 629.113.013 (0888)

(56) USSR author's certificate No. 742171, class B 60 D 1/14 1978

(54) TRAILER-CLUTCH TRAILER

DEVICE

(57) The invention relates to vehicles, namely, trailers equipped with turntables and free drawbars. Purpose - Enhance Functional Capabilities The arm 3 is pivotally mounted on the turntable trolley 1 of the trailer and adapted to move along it. , the other end of which is connected to the cable 6 T, dew 6, the middle part covers the swivel pulley 7 The free end of the cable 6 is connected to the drawbar 3 1 З п ф-лы, 2 ил

with

with

FIG I

about

00 Oh

SP

The invention relates to vehicles, namely to trailers equipped with turntables and free drawbars.

The aim of the invention is to expand the functionality.

Figure 1 shows a t-go trailer hitch, top view; figure 2 is the same, side view.

The drawbar 3 is connected to the pivot cart 1 of the trailer via the lugs 2. The drawbar 3 at the other end contains a hitch 4. On the pivot cart 1 of the trailer there is a spring 5 at one end, the other end of which is connected to one end of the cable 6. 7. The free end of the cable 6 is fixed on the crossbar of the drawbar 3. The axis of the rotary pulley 7 coincides with the axis 8 of rotation of the drawbar 3. The pulley 7 can be made with guide surfaces of various diameters. To move the drawbar 3 relative to the longitudinal axis of the frame of the swivel carriage 1, grooves 9 are made in the lugs 2. This tug-coupling device design allows the drawbar to be balanced in the free state and dampen the dynamic loads between the tow bar and the trailer.

The device works as follows.

29 78

FIG. 2

In the unhooked position, the spring 5 and the cable 6 support the drawbar 3 in a predetermined position, which provides convenience for the trailer to hitch with m. Changing the rigidity of the coupling in the plane of the drawbar is done by installing a pulley with different diameters of the steps, changing the angle of rotation of the pulley with the same movement of the coupling loop, and therefore changing the spring deformation, which leads to a change in the rigidity of the coupling. The required height of the hinge is provided by the preload of the spring, according to the conditions of the coupling with the hook.

Claims (2)

1. A trailer hitch, comprising a drawbar, pivotally connected to the frame of the swivel bogie, on which one end is fixed to an elastic element, the other end of which through the traction element is connected to the tongue, which is different in that, in order to expand the functionality, the traction element is designed as a cable, covering the middle part is mounted on the frame of the swinging trolley of a swivel pulley, the axis of which coincides with the axis of rotation of the drawbar, made with the possibility of moving along the frame of the swinging trolley. 2. The device according to claim 1, wherein the pulley is made with guiding surfaces of different diameters.