| 摘要 |
The present invention relates to improvements in or relating to vegetation cutters, in particular to lawnmowers. There is described a roller assembly associated with the rear wheels 20 and a height of cut mechanism of a lawnmower; wherein the roller is mounted at each end upon a roller carrier mounted on the chassis of the lawnmower for pivotal movement thereabout; wherein the roller carrier includes a generally hook-shaped feature 61 adapted to engage a corresponding cam surface formed on the pivot arm 22. There is also described a lawnmower comprising such a roller assembly and including a height of cut adjustment mechanism, in which the height of the grass cutter above the ground is adjustable between a low cut position in which a maximum length of grass is removed by the cutter and a high cut position in which a minimum length of grass is removed; wherein the lawnmower has: a pair of front wheels or rollers mounted by means of respective stub axles on respective pivot arms carried on a front axle; and a pair of rear wheels similarly mounted on respective stub axles on pivot arms carried on a rear axle; the axles being mounted on the underside of the chassis and defining points about which the pivot arms pivot; |
