CZ4495U1 - Lightweight front loader for tractor three-point linkage - Google Patents

Description

(54) Utility model name:

Light front loader for tractor three-point linkage

Light front loader for tractor three-point linkage

Technical field

The invention relates to a lightweight front loader for a three-point linkage, which consists of a three-point linkage with lifting arms rotatably mounted on pivot pins in the console, the lifting arms being connected to hydraulic cylinders which are pivoted to the three-point linkage.

BACKGROUND OF THE INVENTION

Front loaders are mounted on tractors mainly 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 fitted 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 somewhat difficult, which to a certain extent limits the operability of using the tractor as a universal agricultural means of production.

There are also known tool carriers on tractors that consist of a set of hydraulic cylinders that allow a great deal of variability in the tool setting, but only at the cost of a complicated hydraulic distribution and complex design. An example is the solution according to DE 2628108.

The essence of the technical solution

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

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

According to a 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.

-1GB 4495 U1

According to a further preferred embodiment, the upper arms are two and are connected to the console via a pair of upper hinge eyes arranged on the console, the upper arms being substantially parallel to the lower arms.

Furthermore, it is advantageous if lifting rails are provided on the rear wall, provided with a stop in the front part to prevent the load from slipping.

Overview of the drawings

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

Exemplary embodiment

The version 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 hook 4 and gripping eyes 5 with pivot pins of hydraulic cylinders 6. the pivot point of the third point 7 is provided with two lower hinge eyes 8 for the pivots of the lower arms 9, 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 the front end 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 ,. The lifting bars 15 have a stop in the front part 16 against slipping of the load. The lower arms 9 are provided with pins 17 in the space between the lower eyelets 8 and the pins 12 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 3.

Claims (4)

PROTECTION REQUIREMENTS A lightweight front loader for a three-point tractor linkage comprising a three-point linkage bracket (1) with lifting arms (3) pivotally mounted on pivot pins (2) in the bracket (1), the lifting arms (3) being coupled to hydraulic the rollers (6) which are pivoted at the opposite ends on the bracket (1), characterized in that the bracket (1) is provided with a pair of lifting eyes (8) in which the lower arms (9) attached to the opposite side to a rear wall (14) which is connected to the bracket (1) by at least one upper arm (11), the lower arms (9) being connected with lifting arms (3). Light front loader according to claim 1, characterized in that the upper arm (11) is connected to the bracket (1) via a pivot hinge of the third point (7), the upper arm (11) being substantially parallel to the lower arms (9). -2GB 4495 U1 Light front end 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 lifting eyes (10) arranged on the bracket (1), the upper arms (11). 11) 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 rear wall (14).