The 'three hitching points' which can be used equally well at the front than at the back of an industrial vehicle, agricultural, for public works, or forestry, for example a tractor

摘要

Device for indicating the position of the elements of the "three point" hitch described in the main patent, especially for monitoring the vertical movements of the tips of the hooks 31 described in the main patent with respect to the axis which passes through the holes 30 of Figure 4 of this patent and to obtain information on the pivoting of the balance bar 29% with respect to the frame 25 in order for the tractor driver to be able to decide whether or not to alter the settings and to know, at any moment, in what position his hitch is situated, characterised in that the displacement (or angular position) of the tractor is indicated by a potentiometer 5 to which there is connected an electronic circuit which powers a row of diodes 10, 11, 11a, 12, 12a placed either vertically one above the other in order to show up an upwards or downwards movement in vertical planes, or one beside the other in a horizontal line in order to show up a left-to-right or right-to-left movement in horizontal planes, or else in a curved line or in a circle as a function of the representation of the movements of the "three point" hitch device, and in which at least one lit diode indicates the raised position. IMAGE