Patent ID: 6381854
Filing Date: 2002-05-07
Classification: A01D

Abstract:
Bush-cutter for the manual mowing of grass, in which a rod or a stiff arm (12), working as a handle, supports at one end a cutting head (11) rotating around an axis (Xâ€”X) and having a cutting device with a cutting element, and in which an engine makes the cutting head rotate through gears, comprising a spacing device (13), including a spacer (14) which swings coaxially to said cutting head (11) around said axis (Xâ€”X) and which, during the mowing of the grass, may be brought into contact with any possible obstacle determining a radial distance of the obstacle from the cutting head (11), that is longer than the radial extension of the cutting element of said cutting device (11.2) in respect of the head, in order to avoid the contact of said cutting element with the obstacle,characterized in that said spacing device (13) includes a spring (19), which normally maintains said spacer (14) in a rest positionâ€”swung around said axis (Xâ€”X)â€”, in which the spacerâ€”during the mowing of the grassâ€”does not touch any possible obstacle before the cutting device (11.2), when the bush-cutter (10) is handled according to the normal forward direction of its cutting head (11), and in which the cutting element consists of a flexible rope, said bush-cutter further comprising a locating and inspection device (14.4) for the correct measuring of extending ends of the cutting element of said cutting device (11.2) in respect of the spacer (14), and characterized in that said locating and inspection device (14.4) includes a clearance hole in proximity to the outer edge (14.3) of said spacer (14) and distal from said axis (Xâ€”X), through which hole the operator, during the setting up of the bush-cutter, looks at each end of the cutting element of said cutting device (11.2) and checks that it meets the axis of that hole and, if not, he correctly sets the axis of extension of the end of the said cutting element in respect of the cutting head, unwinding partially the cutting element.