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US 12,179,586 B2Granted
Electric work vehicle
AssigneeKubota Corporation
InventorDaisuke Miyazaki
Life of this patent
Estimating the term…
Abstract
An electric work vehicle includes a work implement, a battery, a motor driven by electric power supplied by the battery, a traveler driven by the motor, a hydraulic pump that is driven by the motor to supply oil to an operating mechanism of the work implement, a transmission to transmit motive power from the motor to the hydraulic pump, and a case that houses the transmission. The case is coupled to the motor, and the hydraulic pump his supported by the case.
Claims8
An electric work vehicle comprising:
- a work implement;
- a battery;
- a motor to be driven by electric power supplied by the battery;
- a traveler to be driven by the motor;
- a speed change device to change a driving force from the motor and transmit the driving force as changed to the traveler;
- a hydraulic pump to be driven by the motor to supply oil to an operating mechanism of the work implement;
- a transmission to transmit motive power from the motor to the hydraulic pump;
- and
- a case to house the transmission;
- wherein
- the motor includes a motor output shaft;
- the speed change device includes a transmission input shaft rotatable integrally with the motor output shaft;
- the motor and the hydraulic pump are located outside of the case;
- the case is coupled to the motor;
- the hydraulic pump is supported by the case;
- and
- the transmission transmits the motive power from the motor output shaft through a transmission path divided into a transmission path extending to the speed change device and a transmission path extending to the hydraulic pump.
14 more elements
An electric work vehicle comprising:
- a work implement;
- a battery;
- a motor to be driven by electric power supplied by the battery;
- a traveler to be driven by the motor;
- a hydraulic pump to be driven by the motor to supply oil to an operating mechanism of the work implement;
- a transmission to transmit motive power from the motor to the hydraulic pump;
- and
- a case to house the transmission;
- and
- an oil supply passage that connects the case and the hydraulic pump;
- wherein
- the motor and the hydraulic pump are located outside of the case;
- the case is coupled to the motor;
- the hydraulic pump is supported by the case;
- the case is configured to store oil;
- and
- the oil stored in the case is supplied to the hydraulic pump via the oil supply passage.
14 more elements
An electric work vehicle comprising:
- a work implement;
- a battery;
- a motor to be driven by electric power supplied by the battery;
- a traveler to be driven by the motor;
- a hydraulic pump to be driven by the motor to supply oil to an operating mechanism of the work implement;
- a transmission to transmit motive power from the motor to the hydraulic pump;
- and
- a case to house the transmission;
- wherein
- the motor and the hydraulic pump are located outside of the case;
- the case is coupled to the motor;
- the hydraulic pump is supported by the case;
- the case includes a first portion and a second portion that are adjacent to each other in a front-rear direction of a body of the electric work vehicle;
- the first portion and the second portion are coupled to each other;
- the first portion is located on one side in the front-rear direction of the body relative to the second portion;
- the motor and the hydraulic pump are located on the one side in the front-rear direction of the body relative to the first portion;
- and
- the second portion is separable from the first portion toward another side in the front-rear direction of the body.
15 more elements
Dependencies are inferred from the claim text.