FI83016B - SIDOBEGRAENSNINGSSYSTEM. - Google Patents

Description

8301 6

Page limiter system

The invention relates to a side restraint system for a three-point lifting device for a tractor or similar implement 5, as defined in more detail in the preamble of claim 1.

The operation of a tractor's three-point linkage is essentially such that the implement connected to it can move laterally. This is already necessary for the connection of the machine 10.

However, in some works this is a disadvantage and therefore various devices have been developed for the drawbars with which this branch can be prevented if necessary. 15 Known of these are ket jura cutters and telescopic stops for controlling movement. A more advanced side limiter of these is a hydraulic side limiter with a control device and a spare tank in each limiter separately.

20

The disadvantage of all the above side limiters is that the side limiter is adjusted immediately near the side limiter, which is often quite a narrow and dirty place. In addition, for adjustment, the driver 25 must get out of the cab.

In addition, the known side limiters are passive, i. they cannot move the drawbars, only prevent or allow their movement.

The purpose of the side limiter system of the present invention is to eliminate the above drawbacks. The side limiter system is active and easy to use. It can be used to move the drawbars in the desired manner in the coupling situation. In addition, all functions can be controlled directly from the tractor cab. Thus, the new invention substantially raises the state of the art in the art.

In order to achieve these objects, the invention is mainly characterized by what is stated in the characterizing part of the claim.

The invention is illustrated in more detail in the following description and in the accompanying drawing, in which an embodiment of the invention is shown in perspective view placed in connection with the three-point lifting devices of the tractor 10 shown in thin lines.

Attached between the tractor body R and the drawbars 1 are single-acting spring-return hydraulic cylinders acting as side stops 2, both of which are connected by hoses 3 to a control center 4 in the tractor cab TO or in its immediate vicinity, with its own valve 7 for each side stop 2. by means of the valve 7, the connection between the side limiter 2 and the container 5 can either be closed or opened and the connection can be adjusted to such a throttled position that the movement of the side limiters 2 is strongly damped. By means of a hand pump 6 or a similar member, the drawbars 1 can be moved. Depending on the position of the valves 7, the movement goes to either the second 25 or both side limiters 2.

In the driving situation, it is then possible to lock the side stops 2 directly from the tractor cab TO to prevent lateral movement of the implement or, when opened, to allow lateral oscillation. Damped movement can also be selected, which prevents the implement from breaking in bends and collisions, for example, but over time the implement can settle into the correct working position. This is important, for example, when working with the plow 35.

The side stops 2 can be arranged to be single-acting by placing inside them a spring member which acts li so that k.o. the drawbar 1 returns to its outermost position when k.o. the side limiter lock is released.

3 83 01 6 5 In the event of a coupling, the active side stops 2 are of great benefit when the tractor is equipped with a quick coupler. In this case, the side guides 2 can be used to set the drawbars 1 to the correct position before coupling.

Claims (3)

4 83016 A side restraint system in connection with drawbars (1) connected to a tractor or similar implement, in particular three-point lifting gear, the side restraint system comprising a pressure medium-filled side stop (2), in particular between each drawbar (1) of the hydraulic cylinder and the tractor body (R), pressure medium tank (5) and means (6) for transferring pressure medium between said side limiters (2) and the pressure medium tank, characterized in that the pressure medium tank (5) and member (6) of the side limiter system for transferring pressure medium are located on a tractor or similar implement 15 in the immediate vicinity of the cab to be controlled that the side stops (2) are each connected by hoses (3) or similar means to the pressure medium tank (5) and that said hoses (3) or similar members are located in each of the cabs or in its immediate vicinity. in the vicinity of the driver's compartment to manage the valve member (7) for controlling the fluid flow between the pressure medium tank (5) and k.o side stabilizer (2). 2. A coupling system according to claim 1, which comprises a device (6) for tricyclic media and a hand pump. Side limiter system according to claim 1, characterized in that said means (6) for transferring the pressure medium is a hand pump. A side limiter system according to claim 1, characterized in that a spring member or the like is arranged in connection with the side limiter (2), said spring member or the like being arranged to return k. the drawbar (1) to its outermost position after unlocking the side stop (2). 35 li 5 83016 Coupling system for a tractor or a tractor with a special purpose vehicle with a fifth wheel (5), for which a special three-way coupling system with a special purpose vehicle (with the aid of a three-wheel coupling) and tractor body (R), and trycmedium tanks 10 (5) and organs (6) for trickmedium mellan de niemnda sidobegränsarna (2) och tryckmediumcisternen (5), kännetecknat därav, att sidobegränsningssys-temets 6) for the trickmedium and the tractor or 15 mopeds with an overhead cabinet, or for the direct control of the trachea, for the sidecar (2) of the trackmedium (3) i bäda av de nämnda slangarna 20 (3) eller motsvarande organ är placerat i förarkabinen or if the direct control is carried out by a control valve (7) for the control of tricmedium tanks (5) and the trackmedium tank (2). ; 25 3. A coupling system according to claim 1, which comprises a combination of a coupling device (2) with a placebo and a fitting body or a sleeve, a color fitting of said fitting body or a fleece with a fitting according to the two-way fitting (1) ) lockning har befriats.