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Thread mower head for mounting on a drive shaft of a brush cutter

A technology of harvesting head and driving shaft, which is applied in the direction of harvesters, applications, cutters, etc., and can solve the problems such as the adverse effect of the cutting height of the wire rope harvesting head

Pending Publication Date: 2021-03-05
ANDREAS STIHL AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this size of the wire drum adversely affects the cutting height of the wire harvesting head

Method used

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  • Thread mower head for mounting on a drive shaft of a brush cutter
  • Thread mower head for mounting on a drive shaft of a brush cutter
  • Thread mower head for mounting on a drive shaft of a brush cutter

Examples

Experimental program
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Effect test

Embodiment Construction

[0040] figure 1 A brush cutter is shown schematically. This brush cutter 1 is held by an operator 64 . The brush cutter 1 has a rear end with a rear housing 65 and a front end from which a drive shaft, not shown, protrudes. Rod 67 connects the rear and front ends. A handle 68 for controlling the brush cutter 1 is arranged on the lever 67 . The wire harvesting head 5 is connected to the front end of the brush cutter 1 . The wire harvesting head 5 is fixed on a drive shaft and is driven in rotation direction 29 about the axis of rotation 10 by a drive motor, not shown. The drive motor is arranged in the rear housing 65 , wherein the drive shaft runs in the rod 67 . It can be provided that the drive shaft in the rod is directly connected to the drive shaft for the wire harvesting head 5 , so that no transmission is interposed. In an alternative embodiment not shown, the drive motor, in particular the electric motor, can also be arranged on the front housing 66 , not shown, ...

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PUM

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Abstract

The invention relates to a thread mower head for mounting on a drive shaft (2) of a brush cutter (1). The thread mower head comprises a housing (7), a cord reel (9) with at least one reel wall (11, 12, 13) for cutting a cord (6), a housing cover (8) and a stringing device (19).In the operating position (30), the cord reel (9) is connected to the housing (7) in a rotationally fixed manner by meansof an end stop (20). The cord reel (9) can be adjusted from the operating position (30) in the direction of the axis of rotation (10) into a non-operating state (31). The stringing device (19) comprises a rotation stop (23) which limits the rotation of the cord reel (9) relative to the housing (7) to a non-operating state (31). The rotation stop (23) is formed at a slot (24) in a drum wall (11, 12, 13) of the cord reel (9).

Description

technical field [0001] The invention relates to a wire harvesting head for mounting on a drive shaft of a brush cutter. Background technique [0002] Brush cutters are used to cut grass, bushes, etc. For this purpose, the rope head with the tool is driven in rotation about the axis of rotation of the rope head, whereby the grass is cut when it comes into contact with the tool. As a tool, cutting wires are usually used in particular, which are subject to certain wear and tear during operation of the wire harvesting head. As a result of this wear, the cutting wire is shortened during its operation and the cutting function is impaired. With a cutting cord that is too short, it is only barely or even no longer possible to cut grass, bushes, etc. Therefore, the cut cord must be replaced by a new cord. Rope harvesting heads are known with stringing devices which, after their actuation, unwind the cutting wire wound on the wire drum and unwind the cutting wire protruding from t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01D34/416
CPCA01D34/4166A01D34/4165A01D34/4163A01D34/4161A01D34/46
Inventor A·雷塔伯
Owner ANDREAS STIHL AG & CO KG