| 摘要 |
A self-propelled lawn mower with an integral chipper or shredder is disclosed. The mower has a deck, a skirt arranged around at least part of the perimeter of the deck, a handle connected to the rear of the deck, a front wheel set (5) and a rear wheel set (6), a motor attached to the outside top of the deck, at least one grass cutting blade or blades, at least one chipper or shredder blade (18) or blades, a chipper tube (12) and a power take-off mechanism (21). The deck has a general overall volute shape with a rearwards-facing funnel (60) which runs along one side of the deck, expanding towards and exiting at the rear of the deck, the exit of the funnel (60) forming an exit aperture at the rear of the deck. The skirt is arranged around at least part of the perimeter of the deck, the deck and the skirt enclose a cutting space under the deck. The motor is attached to the outside top of the deck, the motor having a drive shaft extending downwards from the motor through the deck, the lower part of the drive shaft located substantially at the centre of the cutting space. The grass and chipper (18) blade(s) are connected to the drive shaft within the cutting space so that in use the drive shaft causes the at least one grass cutting blade to rotate in a substantially horizontal grass cutting plane and the at least one chipper blade (18) to rotate in a substantially horizontal chipping plane. The chipper blade (18) is located above the grass cutting blade so that the chipping plane is above the grass cutting plane in the cutting space. The power take-off mechanism (21) connects to the set of rear wheel or wheels (6) and the motor and adapted to drive the set of rear wheel or wheels (6) in use and is positioned so not to interfere with the cut material directed through the funnel (60). This position is achieved by a belt (33) running from the motor shaft to a gearbox (31), having the chipper tube (12) passing through the belts (33) centre. |
