Work vehicle

• US 10,550,545 B2
• Filed: 02/23/2015
• Issued: 02/04/2020
• Est. Priority Date: 12/12/2014
• Status: Active Grant

• Current Assignee: Komatsu Ltd.
• Original Assignee: Komatsu Ltd.
• Inventors: Oshikawa, Yuushi, Noda, Takashi, Ozaki, Taira, Uemura, Takuya, Itogawa, Hiroshi
• Primary Examiner(s): Phan, Hau V
• Application Number:
  US15/526,842
• Publication Number:
  US 20170321392A1
• Time in Patent Office: 1,807 Days
• CPC Class Codes: E02F 3/7604 Combinations of scraper blades with soil loosening tools working independently of scraper blades soil loosening attachments fixed on blades E02F3/8152, E02F3/8155
• CPC Class Codes: E02F 3/7609 Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers
• CPC Class Codes: E02F 9/0833 Improving access, e.g. for maintenance, steps for improving driver's access, handrails
• CPC Class Codes: E02F 9/0866 Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
• CPC Class Codes: E02F 9/0883 Tanks, e.g. oil tank, urea tank, fuel tank for vehicles in general B60K15/00
• CPC Class Codes: E02F 9/16 Cabins, platforms, or the like, for drivers for motor vehicles in general B62D33/06, for cranes B66C13/54
• CPC Class Codes: E02F 9/2004 Control mechanisms, e.g. control levers control levers per se G05G
• CPC Class Codes: E02F 9/205 Remotely operated machines, e.g. unmanned vehicles E02F3/8866 takes precedence
• CPC Class Codes: E02F 9/2066 of the type combustion engines

Abstract

A work vehicle includes a vehicle body, a travel device, a driving source, and a cooling device. The travel device is provided below the vehicle body. The driving source is disposed in a front part of the vehicle body. The driving source generates driving power for the travel device. The cooling device is disposed on one side in the vehicle width direction of the vehicle body and rearward of the driving source.

Claims

1. A work vehicle comprising:

a vehicle body;

a travel device provided below the vehicle body in a vertical direction of the work vehicle;

a driving source disposed inside a driving source compartment in a front part of the vehicle body in a longitudinal direction of the work vehicle, the driving source being configured to generate a driving power for the travel device; and

a cooling device disposed rearward of the driving source in the longitudinal direction and on one side in a lateral direction of the vehicle body, the entire cooling device being disposed on one side of a lateral center of the vehicle body in the lateral direction and rearward of a transverse centerline of the driving source compartment in the longitudinal direction, the transverse centerline extending in the lateral direction,

each of the vertical direction, the longitudinal direction, and the lateral direction being perpendicular to one another.

2. The work vehicle according to claim 1, wherein

the vehicle body has a work area positioned facing the cooling device and rearward of the driving source.

3. The work vehicle according to claim 2, further comprising

a device to be maintained that requires maintenance, the device being disposed between the driving source and the work area.

4. The work vehicle according to claim 3, further comprising

a fuel tank disposed in a rear part of the vehicle body, the fuel tank extending in the lateral direction with respect to a center of the lateral direction of the vehicle body.

5. The work vehicle according to claim 3, further comprising

a second cover member that covers the driving source,

the second cover member having a third inspection port between the work area and the device to be maintained.

6. The work vehicle according to claim 3, further comprising

a power transmission mechanism positioned below the work area, the power transmission mechanism being configured to transmit driving power generated by the driving source to the travel device;

and

a first partition plate having a first inspection port that allows communication from the work area to the power transmission mechanism, the first partition plate separating the work area and the power transmission mechanism.

7. The work vehicle according to claim 4, wherein

the work area is surrounded by the cooling device, the device to be maintained, and the fuel tank.

8. The work vehicle according to claim 2, further comprising

a power transmission mechanism positioned below the work area, the power transmission mechanism being configured to transmit driving power generated by the driving source to the travel device;

and

a first partition plate having a first inspection port that allows communication from the work area to the power transmission mechanism, the first partition plate separating the work area and the power transmission mechanism.

9. The work vehicle according to claim 2, further comprising

a first cover member that covers the cooling device,

the first cover member having a second inspection port between the work area and the cooling device.

10. The work vehicle according to claim 2, further comprising

a second cover member that covers the driving source,

the second cover member having a third inspection port between the work area and the driving source.

11. The work vehicle to claim 1, wherein

the travel device has a crawler belt,

the cooling device overlapping the crawler belt as seen from above in a top view of the work vehicle.

12. The work vehicle according to claim 1, wherein

the entire cooling device is disposed on the one side of the driving source compartment in the lateral direction.

13. A work vehicle comprising:

a vehicle body;

a travel device provided below the vehicle body in a vertical direction of the work vehicle;

an engine compartment enclosing an engine in a front part of the vehicle body in a longitudinal direction of the work vehicle, the engine compartment defining the front part of the vehicle body;

a cooling device compartment housing a cooling device, the cooling device compartment extending rearward of the engine compartment in the longitudinal direction and disposed on one side of a lateral center of the work vehicle in a lateral direction of the work vehicle;

a power transmission mechanism compartment disposed rearward of a lower part of the engine compartment in the longitudinal direction;

a partition plate disposed above the power transmission mechanism compartment in the vertical direction and rearward of the engine compartment in the longitudinal direction; and

a work area defined as a space surrounded by the engine compartment, the cooling device compartment, and the partition plate,

a frontward side of the work area being defined by a rearward surface of the engine compartment, a lateral side of the work area being defined by vehicle-widthwise inwardly facing surface of the cooling device compartment, and a bottom of the work area being defined by the partition plate,

each of the vertical direction, the longitudinal direction, and the lateral direction being perpendicular to one another.

14. The work vehicle according to claim 13, wherein

the cooling device compartment is disposed on the one side of the engine compartment in the lateral direction.

15. The work vehicle according to claim 13, wherein

the travel device includes a pair of crawler belts, and

the cooling device compartment overlaps one of the crawler belts in a top plan view of the work vehicle.