SI24143A - Lower pulley with forestry winch rope guide - Google Patents

Abstract

The purpose of the invention is to design a lower pulley of a forestry winch through which it is possible to divert the rope (5) if necessary to reduce the traction force of the traction force by safeguarding against the unintentional failure of the rope when aligning the lower pulley in the towing direction so that the rope (5) is routed through the rope ) through the guide (11) to the load and the guide (11) is arranged approximately tangentially to the pulley (10) at the direction of the rope (5) at the distance (A). The guide (11) is mounted articulated or fixed in the housing by a guide (12) formed by two side panels artificially rotatable on the axis (9) and interconnected.

Description

The lower rope with the rope guide of the forestry winch

The subject of the patent is a forestry winch adapted for mounting on a tractor or similar towed machine for the floor hauling of wood from the forest to the loading bay.

The solution is based on the problem of reliable control of the tow rope in the case where, because of the heavy load, it is necessary to divert the tow rope during the tow over the lower rope, as close as possible to the base, with the emphasis being placed on the reliable rope management, especially of synthetic fiber ropes, to prevent slipping ropes from the rope when aligning the lower rope around the approximately vertical axis in the direction of traction. The minimum shear load on synthetic fiber ropes results in extensive damage to the rope.

The solutions provided so far are based on covering the escape line of synthetic fibers with lateral protection of the cable as resolved in patent SI 22215. The likelihood of damage to the synthetic fiber rope is reduced but the risk still remains.

According to the invention, the problem is solved by guiding the rope, especially the synthetic fiber rope, when exiting the rope through a guide, which is positioned approximately tangent to the rope in the direction of the rope over a certain distance. This distance should be greater than the radius of the cord to minimize any risk. The guide is fixed or articulated in the guide housing. The bushing housing is articulated first and foremost solely into the twist of the swing cord. However, it can be clamped into a special pivot on the housing.

A rope, in particular a synthetic fiber rope guided through a guide, may more easily move the lower rope in the direction of traction when aligning the lower rope about the approximately vertical axis in the direction of traction. The distance to move the lower lane is significantly longer.

The invention will be described by way of example and figure, showing FIG. 1 Forestry winch with lower rope Fig. 2 Lower rope with guide - Drawing Fig. 3 Lower rope with guide - Side view

FIG. 1 shows a forestry winch 1 with a frame 2 and a protective net 3. On the frame 2, a top rope 4 is mounted through which a rope 5 in the load direction extends from a winding drum not shown in the drawing. Approximately in the vertical plane below the upper row 4, the lower row 6 is mounted rotatably pivoted about about the vertical axis 7.

Figure 2 shows a lower lug 6 with a housing 8 into which a lug 10 is rotatably mounted on the axis 9. A lug 5 is guided from the upper lug 4 to a lower lug 6 through a guide 11 to the load. Guide 11 is positioned approximately tangent to line 10 in the direction of line 5 at distance A. Distance A is the distance between the tangent point at line 10 with line 5 and the outside of guide 11 and is greater than the radius R of the line.

The guide 11 is hinged or fixed to the housing of the guide 12. The housing of the guide 12 is made up of two side panels, primarily pivotally pivoting on the axis 9 and interconnected. The guide housing 12 with side panels may be articulated in a special pivot in the housing 8, which is not shown in FIG.

Guide 11 has a known solution for fast insertion of rope 5 for routing rope 5 from the upper rope 4 to the lower rope 6.

FIG. 2 shows the distance B between the vertical axis 7, around which the lower lane 6 rotates, and the outside of the guide 11.

Figure 3 shows the bottom row 6 with the housing 8 and the pivotally pivoted mounted housing 12 with guide 11 on the axis 9.

The rope 5, in particular the synthetic fiber rope guided through the guide 11, can more easily move the lower rope 6 in the direction of the pull than the distance (B - A) when aligning the lower rope 6 about the approximately vertical axis 7 in the direction of traction 5 and preventing the rope 5 from slipping 5 .

Claims (5)

PATENT APPLICATIONS A lower rope with a rope guide of a forestry winch through which it is possible to divert a rope (5) to lower the drawbar gripping point consisting of a housing (8) in which a rope (10) is mounted on the axis (9), characterized in that the rope (5) is routed through the rope (10) through the guide (11) to the load and the guide (11) is positioned approximately tangent to the rope (10) in the direction of the rope (5) at a distance (A). Forestry winch rope guide below according to claim 1, characterized in that the distance (A) is the distance between the tangent point on the rope (10) with the rope (5) and the outside of the guide (11) and is greater than the radius (R ) cords. The forestry winch rope guide below according to claim 1, characterized in that the guide (11) is clamped articulated or fixed to the guide housing (12). The forestry winch rope guide below according to claim 1, characterized in that the guide housing (12) is formed by two side panels, primarily pivotally pivoting on the axis (9) and interconnected. 5. Forestry winch rope guide line according to claim 1, characterized in that the guide housing (12) is formed by two side panels and can be articulated in a special pivot on the housing (8) and interconnected.