Mower deck with a three-dimensional single belt transmission
AssigneeKubota Corporation
InventorsPhillip Smith, Benjamin A. Morris, Fahmid Sharkar, Eric Chang
Life of this patent
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Abstract
[Summary] A mower unit includes an idler pulley unit and a single belt routed around an output pulley of a drive source, the idler pulley unit and a plurality of blade pulleys. The idler pulley unit includes a first idler pulley, a second idler pulley and a tension idler pulley. A pulley height of the idler pulley unit is set higher than a pulley height of the blade pulleys, and a forward belt portion from the output pulley and a reverse belt portion to the output pulley extend to pass over and above the blade belt portion.
Claims10
A mower unit receiving power transmitted from an output pulley of a drive source, comprising:
- a mower deck liftable up/down by a lift mechanism;
- a plurality of blade rotational shafts extending through a top plate of the mower deck perpendicularly;
- a plurality of blade pulleys mounted on the respective blade rotational shafts;
- an idler pulley unit including a first idler pulley, a second idler pulley and a tension idler pulley;
- and
- a single belt routed around the output pulley, the idler pulley unit and the blade pulleys, the single belt including a forward belt portion extending from the output pulley toward the tension idler pulley, a reverse belt portion extending from the idler pulley unit toward the output pulley, and a blade belt portion routed around the idler pulley unit and the blade pulleys;
- wherein a pulley height of the idler pulley unit is set higher than a pulley height of the blade pulleys, and the forward belt portion and the reverse belt portion extend to pass over and above the blade belt portion.
A mower machine comprising a traveling vehicle body liftably mounting a mower unit for rotating a blade by a rotational power from an engine,
- the mower unit comprising:
- a mower deck;
- a plurality of blade rotational shafts extending through a top plate of the mower deck perpendicularly;
- a plurality of blade pulleys mounted on the respective blade rotational shafts;
- an idler pulley unit including a first idler pulley, a second idler pulley and a tension idler pulley;
- and
- a single belt routed around an output pulley of the engine, the idler pulley unit and the blade pulleys, the single belt including a forward belt portion extending from the output pulley toward the tension idler pulley, a reverse belt portion extending from the first idler pulley toward the output pulley, and a blade belt portion routed around the idler pulley unit and the blade pulleys;
- wherein a pulley height of the idler pulley unit is set higher than a pulley height of the blade pulleys, and the forward belt portion and the reverse belt portion extend to pass over and above the blade belt portion.
Dependencies are inferred from the claim text.