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Line type grass-cutting head

A lawn mowing and spooling technology used in cutters, harvesters, agricultural machinery and implements to solve problems such as loosening of cutting lines

Active Publication Date: 2009-10-07
法布里齐奥·阿尔内托利
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The toothing is offset axially and angularly so that alternating axial movements of the spool inside its housing cause a stepped rotation of the spool relative to the housing and, therefore, a gradual loosening of the secant

Method used

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  • Line type grass-cutting head
  • Line type grass-cutting head
  • Line type grass-cutting head

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] A first embodiment of the mowing head according to the invention is in Figure 1-6B shown in . The mowing head indicated overall by 1 comprises a housing formed by a first lower part 3 in the example shown and a second upper part 5 . Part 3 defines a seat 7 and part 5 forms a closure. The spool 9 on which the secant F is wound can be inserted inside the housing formed by the parts 3 and 5 . Secant lines can be single or multiple. For example, two separate secant wires can be wound in two annular seats divided by the bobbin 9 . The following will refer to Figure 6A and 6B The structure of the bobbin 9 is described in more detail.

[0032] According to an advantageous embodiment, the lower part 3 of the housing containing the spool 9 has an approximately cylindrical wall 11 to the outside of which a protective protrusion 13 is mounted, the purpose of which is to protect the secant from breakage. The protrusion 13 preferably extends in a helical arc, thus having a ...

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PUM

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Abstract

The grass cutting head (1) comprises a spool (9) for a cutting line and a housing (3, 5) for the cutting line. The housing comprises a first portion (3) and a second portion (5) coupled reversibly to each other by means of a snap coupling. This coupling can comprise elastic tabs (17) which engage with an annular projection 21A which allows the two portions of the housing to rotate reciprocally.

Description

technical field [0001] The present invention relates to a mowing head, and more particularly to a wire mowing head, that is to say, in the mowing head, the cutting wire is wound on a spool inside the mowing head housing, and the end of the cutting wire A portion protrudes from the mowing head to perform cutting of the vegetation as the mowing head rotates. Background technique [0002] For amateur and professional level gardening work, mowing heads are commonly used to mow grass and other vegetation; these mowing heads have cutting lines projecting radially With the rapid rotation of the grass head around its axis, these mowing heads cut the vegetation. [0003] Examples of mowing heads of this type are described in the following US patents: US 4,097,991, US 4,104,797, US 4,145,809, US 4,161,820, US 4,259,782, US 4,203,212, US 4,274,201, US 4,651,421, US 4,738,085, US4,738,085, US4 US 4,813,140,US 4,823,465,US 4,882,843,US 4,893,410,US 4,942,664,US 4,959,904,US 4,989,321,U...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01D34/416
CPCA01D34/4163A01D34/416A01D34/81A01D34/84
Inventor 法布里齐奥·阿尔内托利
Owner 法布里齐奥·阿尔内托利