Patent ID: 8707665
Filing Date: 2014-04-29
Classification: A01D

Abstract:
1. A mowing device, comprising: a rotor with a first rotation axis; at least one blade holder for holding a blade; and at least one blade rotatably driven by the rotor; connection means connecting the at least one blade holder to the rotor and providing a latent, second rotation axis, wherein the at least one blade is attached to a corresponding blade holder by a blade pivot pin or shaft which is situated at a radial distance from the first rotation axis, so that the blade is freely rotatable at least through an angle, wherein the at least one blade holder is further connected to the rotor via a breakable connection which breaks upon an impact having a force exceeding a breaking force value, thereby releasing the at least one blade holder such that the at least one blade holder becomes rotatable about the second rotation axis and the blade pivot pin or shaft is displaceable in a radially inward direction with respect to the first rotation axis; and, wherein the first rotation axis, the latent, second rotation axis, and the blade pivot pin or shaft determine a triangle in a plane of projection perpendicular to the first rotation axis.