CZ76794A3 - Light-weight front-end loader mounted on a tractor tree-point suspension - Google Patents

Abstract

The hydraulic three-point hitch bracket (1) is provided two lower eyelets (8) for pivot pins the lower arms (9) of the front loader and the two upper suspension arms eyelets (10) for pivots of two upper arms (11) a front loader, the upper arm (11) being alternatively mounted in the hinge for the pivot pin of the third point (7), wherein the pin (13) is in such a position that the upper arm (11) was parallel to the axes of the lower arms (9).

Description

Light front loader on three tractor

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The present invention relates to a lightweight front end loader mounted on a console of a front three-point linkage and operated by its lifting arms.

BACKGROUND OF THE INVENTION

Front loaders are mounted on tractors mostly on both sides of its side half-frame and are controlled by their own hydraulic cylinders connected to the external hydraulic circuit of the tractor. They are usually equipped with a bucket for loading loose materials, forks or grabs.

Also known is an embodiment for loading different loads which has its own frame which is mounted on the frame or the tractor half-frame.

The assembly and disassembly of all these devices is rather difficult, which to some extent limits the operability of using the tractor as a universal agricultural means of production.

SUMMARY OF THE INVENTION

The lightweight front loader of the invention is designed to move or load loads or loads on pallets and is adapted to be easily mounted on the tractor's three-point linkage, just like any other agricultural implement, except that the three-point linkage bracket is additionally provided with two lower linkage for the front loader lower link and two upper lifting eyes for the front loader upper link. If the upper point of the three-point hitch is used to suspend the upper link arms, the bracket does not need to be equipped with the two above mentioned lifting eyes. The lifting power of the loader is provided by the hydraulic device of the three-point linkage using its lifting arm. Simple and operative assembly and disassembly of this loader respects the versatility of using the tractor as a carrier of various agricultural implements.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 shows an exemplary embodiment of a light front loader in its lower position. FIG. 2 shows its upper position.

DETAILED DESCRIPTION OF THE INVENTION

An embodiment of the light front loader in its lower working position is shown in Fig. 1. The bracket 1 of the hydraulic three-point hitch is in addition to the pivot pins 2 of the lifting arm 3 with the hook 4 and mounting lugs with the pivot pins 5 of the hydraulic cylinders 6a 7 is provided with two lower hinge eyes 8 for the pivots of the lower arms of the front loader and two upper hinge eyes 10 for the pivots of the two upper arms 11 of the front loader. If the upper arm 11 is hinged to the pivot point of the third point 7, the pin 13 must be in a position such that the upper arm 11 is parallel to the axes of the lower arms 9. The front end of the lower arms 9 is provided with pins 12 and a front the ends of the upper arms 11 are provided with pins 13, the pins 12 and 13 being connected to the rear wall 14 of the lifting bars 15 &apos;. The lower arms 9 at the points between the lower eyelets 8 of the pins 12 have pins 17 in which the upper ends of the pivoting arms 18 are pivotally mounted with their lower ends, which by their lower ends are pivotally mounted in the hook 4 of the lifting arms 3.

Claims (3)

Light front loader for tractors controlled by the hydraulic equipment of the front three-point linkage by its lifting arms (3), characterized in that the bracket (1) of the hydraulic three-point linkage is provided with two lower link eyes (8) for the pivots of the lower links (9) of the front loader and two upper lifting eyes (10) for the pivots of the two upper arms (11) of the front loader. Light front end loader according to claim 1, characterized in that the upper arm (11) is alternatively mounted in a hinge for the pivot of the third point (7), the pin (13) being in such a position that the upper arm (11) is parallel to the axes of the lower belts / 9 /. Light front loader according to claims 1 and 2, characterized in that the lifting bars (15) are provided with a stop (16) in the front part.