SK40795A3 - Light frontal loader for tractor three-point suspension - Google Patents

Abstract

Light front loader for tractor three-point hitch, Consisting of a three - point hinge bracket (1) the lifting arms (3) rotatably mounted on the pivoting arms the pins (2) in the bracket (1). The lifting arms (3) are connected to hydraulic cylinders (6) which are opposite pivoting ends anchored on the bracket (1). Bracket (1) is fitted with a pair of lifting eyes (8) in which they are fitted pivoting lower arms (9) connected to the opposite a side to the rear wall (14) which is connected to the bracket (1) by at least one upper arm (11). The lifting arms are connected to the lower arms (9) (3).

Description

Light front loader for tractor three-point linkage

Technical field

The invention relates to a lightweight front loader for a tractor three-point linkage comprising a three-point linkage bracket with lifting arms rotatably mounted on pivot pins in the bracket, the lifting arms being connected to hydraulic cylinders which are pivotally anchored on the three-point linkage bracket.

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 a version for loading different loads which has its own frame, which is mounted on the frame or half-frame of the tractor.

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

SUMMARY OF THE INVENTION

The above-mentioned drawbacks are overcome by a lightweight front loader for a tractor three-point linkage, consisting of a three-point linkage bracket with lifting arms rotatably mounted on pivot pins in the bracket, the lifting arms being connected to hydraulic cylinders which are pivotally anchored on the bracket characterized in that the bracket is provided with a pair of pendants, in which the lower arms are pivotably mounted, connected on the opposite side to the rear wall, which is connected to the bracket by at least one upper arm. Lifting arms are attached to the lower arms.

The advantage of the lightweight front loader according to the invention is that it is easy to mount on the known three-point linkage that is used by tractors. The loader allows for moving or loading loads, e.g. on pallets, the lifting force being derived from the hydraulic cylinders of the known three-point linkage. Simple and operative assembly and disassembly of this loader respects the versatility of using a tractor as a carrier of various agricultural implements.

According to one preferred embodiment, the upper arm is connected to the bracket via a hinge for the pivot point of the third point, wherein the upper arm is substantially parallel to the lower arms.

According to a further preferred embodiment, the upper arms are two and are connected to the console via a pair of upper hinge eyes disposed on the console, the upper arms being substantially parallel to the lower arms. It is furthermore advantageous if the lifting rails are provided on the rear wall with a stop in the front part to prevent the load from slipping.

BRIEF DESCRIPTION OF THE DRAWINGS

In FIG. 1 shows an exemplary embodiment of a light front loader in its lower position. In FIG. 2, its upper position is shown.

DETAILED DESCRIPTION OF THE INVENTION

The embodiment of the light front loader in its lower working position is shown in FIG. 1. In addition to the pivots 2 of the lift arm 2 with the hook 4 and the lugs with the pivots 5 of the hydraulic cylinders 6 and the hinge for the pivoting pin of the third point 7, the bracket X of the hydraulic three-point hinge is also equipped with two lower hinge eyes 8 for the pivots 9 of the front loader and two upper lifting eyes 10 for the pivots of the two upper arms 11 of the front loader. In the event that the upper arm 11 is hinged to the hinge for 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 end the upper arms 11 are provided with pins 13. wherein the pins 12 and 13 are connected to the rear wall 14 of the lifting bars 15. The lifting bars 15 have in the front part of the load-stopper 16. The lower arms 9 at the points between the lower eyelets 8 of the pins 12 have pins 17 in which the upper arms 18 are pivotally mounted by their upper ends, which by their lower ends are pivotally mounted in the hook 4 of the lifting arms 2.

Claims (4)

PATENT CLAIMS Light front loader for a tractor three-point linkage, consisting of a three-point linkage bracket (1) with lifting arms (3) rotatably mounted on pivot pins (2) in the bracket (1), the lifting arms (3) being connected to hydraulic cylinders (6) which are pivotally anchored on the bracket (1) by the opposite ends, characterized in that the bracket (1) is provided with a pair of pendants (8) in which the pivoting lower arms (9) are connected on the opposite side to the rear a wall (14) which is connected to the bracket (1) by at least one upper arm (11), the lifting arms (13) being connected to the lower arms (9). Light front loader according to claim 1, characterized in that the upper arm (11) is connected to the bracket (1) via a hinge for the pivot pin of the third point (7), the upper arm (11) being substantially parallel to the lower arms (9). Light front loader according to claim 1, characterized in that the upper arms (11) are two and are connected to the bracket (1) via a pair of upper eyelets (10) located on the bracket (1), the upper arms (11) they are substantially parallel to the lower arms (9). Light front loader according to claim 1, 2 or 3, characterized in that lifting strips (15) provided with a stop (16) in the front part are mounted on the bottom wall (14).