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US 8,297,386 B2Granted
Work vehicle
AssigneeKubota Corporation
InventorsMasashi Osuga, Shoko Koda, Hironobu Nishihara, Takashi Kuramoto, Satoshi Ogata, Hiroshi Kawabata
Life of this patent
Estimating the term…
Abstract
A work vehicle including: a body frame; an engine supported by the body frame through an elastic body; a belt transmission mechanism connected to an output shaft of the engine in a power transmissive manner; and a power takeoff (PTO) mechanism connected to the belt transmission mechanism in a power transmissive manner to take out power from the engine. A PTO support bracket configured to support the PTO mechanism is attached to the engine.
Claims9
A work vehicle comprising:
- a body frame;
- an engine supported by the body frame through an elastic body;
- a belt transmission mechanism connected to an output shaft of the engine in a power transmissive manner;
- a power takeoff (PTO) mechanism connected to the belt transmission mechanism in a power transmissive manner to take out power from the engine;
- and
- a PTO support bracket configured to support the PTO mechanism, the PTO support bracket being attached to the engine,
- wherein the belt transmission mechanism comprises:
- a transmission belt;
- an output pulley attached to the output shaft;
- an input pulley attached to an input shaft for the PTO mechanism;
- and a tension wheel configured to adjust a tension of the transmission belt, the tension wheel and the input pulley are arranged downward of the output shaft and apart rightward and leftward along a lateral direction of a vehicle body from a position directly below the output shaft.
8 more elements
A work vehicle comprising:
- a body frame;
- an engine supported by the body frame through an elastic body;
- a belt transmission mechanism connected to an output shaft of the engine in a power transmissive manner;
- a power takeoff (PTO) mechanism connected to the belt transmission mechanism in a power transmissive manner to take out power from the engine;
- a mower unit disposed at an intermediate portion of the vehicle body, to which power is transmitted from the PTO mechanism;
- a hydrostatic transmission configured to convert power from the output shaft of the engine into advance drive power or reverse drive power and to transmit the converted power to a pair of right and left rear wheels;
- a conveyance duct running between the rear wheels and configured to convey mown grass from the mower unit to a rear side of the vehicle body;
- and
- a rear wheel drive case disposed at a rear portion of the vehicle body and configured to drivably support the rear wheels, comprising
- a pair of right and left rear wheel transmission case portions extending in a vertical direction of the vehicle body and flanking both lateral sides of the conveyance duct, each having a lower end portion configured to support the rear wheel;
- and
- an input case portion extending in a lateral direction of the vehicle body disposed upward of the conveyance duct and connected to upper end portions of the respective rear wheel transmission case portions,
- wherein the hydrostatic transmission having a hydraulic pump and a hydraulic motor is connected to a front portion of the input case portion, while the hydraulic pump is arranged lower than the hydraulic motor.
10 more elements
A work vehicle comprising:
- a body frame;
- an engine supported by the body frame through an elastic body;
- a belt transmission mechanism connected to an output shaft of the engine in a power transmissive manner;
- and
- a power takeoff (PTO) mechanism connected to the belt transmission mechanism in a power transmissive manner to take out power from the engine;
- and
- a PTO support bracket configured to support the PTO mechanism, the PTO support bracket being attached to the engine;
- wherein the PTO mechanism comprises:
- a power takeoff shaft (PTO shaft) in parallel with the output shaft;
- and a friction clutch configured to connect and disconnect a power transmission from the output shaft to the PTO shaft;
- and
- wherein an input shaft for the PTO mechanism and the PTO shaft are coaxially arranged, and the friction clutch is disposed therebetween.
9 more elements
Dependencies are inferred from the claim text.