DE202010012789U1 - Deflector for rotary mower - Google Patents

Abstract

Rotary mower (1) with a guard (2) as a deflector for approaching obstacles, characterized in that the guard (2) via elastic spring elements (3) with the protection device (4) is connected.

Description

The invention relates to a protective device on rotary mowers, which allows the operator or the tractor driver to mow the outer contour of the agricultural surface to be processed approximately without loss of crop according to the preamble of independent claim 1.

State of the art

Protective devices are primarily known to serve the protection of persons and protect the immediate danger area of the device according to the provided for this purpose CE directives from unwanted interference. This is achieved by extensive coverage of the immediate source of danger. According to the v. G. CE guidelines stipulate specified minimum distances between turned parts and the respective protective device and must be observed. When driving on the contour of an agricultural area thus a reduced working width of the mower can not be prevented.

task

The object of the invention is therefore to provide a device which allows the operator of the mower to allow during the driving operation as gentle and fast approach of the mower incl. Protection to a located on the outer contour of the agricultural surface obstacle. As an obstacle in this context, natural obstacles such as trees and hedges as well as unnatural as walls and fences are mentioned.

This is where the object of the invention with the aim to achieve a timely approach of the mower incl. Protection to the outer contour of the agricultural area without damaging the protective device.

Solution of the task

The object of the invention is achieved with the characterizing features of independent claim 1. Further advantageous embodiments of the invention are described in the dependent claims, the description and the figures representations.

The invention provides at least on the outer side of a Kreiselmähwerkes a guard before. The attachment points of the deflector are flexibly mounted to prevent damage to the guard.

embodiment

The invention will be described in more detail on the basis of an exemplary embodiment of a front mower:

1 shows a rotary mower ( 1 ) designed as a front mower coupled to a tractor ( 6 ) in a plan view of a working plane.

The mowing discs ( 7 ) of the front mower ( 1 ) are protected by a protective cover ( 4 ) in accordance with the safety regulations of DIN EN ISO 425412 covered.

The sides of the protective cover are fitted to protective elements ( 3 ).

The direction of travel of the mower is defined by the directional arrow (F).

If the mower is approaching an obstacle ( 7 ) For example, a fence post so the driver is trying to mow as close to the obstacle along. Does he now touch the obstacle ( 7 ) with the guard ( 2 ) so the guard can due to the spring elements ( 3 ) mitigate the starting shock, thus avoiding deformation damage to the protective cover. The spring elements can be designed both as a steel spring and as elastomers spring elements. These spring elements ( 2 ) which are preferably designed as a tube fix this in its neutral that is unloaded position. By this type of embodiment of the elastic coupling to the protective cover ( 4 ), the guard can dodge into all three levels when in contact with an obstacle.

Another advantage of the invention is that the guard is designed so that he can work freely when contacting the obstacle. This is achieved by the guard with the angle (α) opposite to the direction of travel assumes a diverging course. This reduces the contact pressure of the guard against the guard during continuous travel.

The invention is by no means limited to front mowers but is also applicable to mounted, towed or semi-mounted rotary mowers.

LIST OF REFERENCE NUMBERS

1

Kreiselmähwerk

2

Side guard

3

spring elements

4

Protection device

5

clutch housing

6

tractor

7

obstacle

F

Driving movement in the direction of travel

A

Driving movement against the direction of travel

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited non-patent literature

• DIN EN ISO 425412 [0009]

Claims (5)

Rotary mower ( 1 ) with a safety bar ( 2 ) as a rejection device for approaching obstacles, characterized in that the guard ( 2 ) via elastic spring elements ( 3 ) with the protective device ( 4 ) connected is. Rotary mower according to claim 1, characterized in that the protective bow ( 2 ) is further exposed at the side parts in the direction of travel (F) of the rotary mower at a divergent angle (α) than at the opposite end of the direction of travel (A) lying end of the clutch housing ( 6 ). Rotary mower according to claim 1, characterized in that the protective bow ( 2 ) is firmly connected to the protective device. Rotary mower according to claim 1, characterized in that the elastic spring elements ( 3 ) Can be coil springs. Rotary mower according to claim 1, characterized in that the elastic spring elements ( 3 ) May be polymer springs.

Images