Patent ID: 8234849
Filing Date: 2012-08-07
Classification: A01D

Abstract:
1. A lawnmower comprising: a cutting blade rotatable about a shaft extending substantially perpendicularly to a lawn; an open-bottomed housing for housing the blade; a conduit for discharging cut grass, the conduit extending rearwardly from the housing and designed to allow attachment thereto of a cut-grass container; a shutter capable of revolving about the shaft for adjusting a degree of opening of the cut-grass discharge conduit; and a shutter operating mechanism for operating the shutter, wherein the shutter operating mechanism has an operating lever, a first shaft, a second shaft, a first link arm, and a second link arm; the first shaft is positioned on the housing, the second shaft is positioned adjacent to and parallel to the first shaft, is rotatably attached to the housing and is linked to the shutter, the first link arm is swingable about the first shaft and has the operating lever attached thereto, and the second link arm is attached to the second shaft such that rotation of the second link arm relative to the second shaft is restricted but the second link arm is capable of swinging with the second shaft as the second shaft rotates, said second link arm being linked to the first link arm such that the second link arm is swing-driven about the second shaft by the first link arm.