Work vehicle

1. A work vehicle having a cab, comprising:

a protruding portion on an upper side of said cab, which protrudes rearward from a rear portion of said cab;

a first image pick-up apparatus arranged on a rear side of said protruding portion; and

a second image pick-up apparatus arranged above said first image pick-up apparatus, which has an optical axis inclined posterosuperiorly relative to an optical axis of said first image pick-up apparatus, wherein

said protruding portion serves as an air conditioner,

said air conditioner includes

a heat exchanger,

a top cover arranged above said heat exchanger, and

a fan arranged between said heat exchanger and said top cover and having a rotation shaft extending along an upward/downward direction of said work vehicle, and

said first image pick-up apparatus is arranged in rear of said fan.

2. The work vehicle according to claim 1 , wherein said fan has an upper plate having an opening, and

both of said first image pick-up apparatus and said second image pick-up apparatus are arranged at a position lower than a height position of said upper plate of said fan.

3. The work vehicle according to claim 1 , further comprising a rectification member having two diverter baffles, wherein

said two diverter baffles have front ends connected to each other, an interval between said two diverter baffles increases from front to rear in a plan view, and said second image pick-up apparatus is located between said two diverter baffles in a plan view.

4. The work vehicle according to claim 1 , wherein

an upper surface of said top cover is higher in height position than an upper surface of said cab, and

a connection portion between the upper surface of said top cover and the upper surface of said cab includes a step.

5. The work vehicle according to claim 1 , wherein

said top cover has a top plate and a rectification portion extending downward from a lower surface of said top plate, and

said rectification portion is formed integrally with said top plate.

6. The work vehicle according to claim 5 , further comprising an outlet cover arranged in rear of said fan and having an outlet, wherein

said rectification portion has an air shield portion extending between said fan and said outlet cover.

7. The work vehicle according to claim 1 , wherein

said top cover has an exhaust port passing through said top cover.

8. The work vehicle according to claim 1 , wherein

while said work vehicle is arranged on a horizontal ground, the optical axis of said first image pick-up apparatus is inclined downward with respect to the horizontal and the optical axis of said second image pick-up apparatus is inclined upward with respect to the horizontal.

9. The work vehicle according to claim 1 , further comprising:

a first display apparatus for displaying an image picked up by said first image pick-up apparatus; and

a second display apparatus for displaying an image picked up by said second image pick-up apparatus.

10. The work vehicle according to claim 9 , wherein

said cab has an operator seat in inside, and

said first display apparatus is arranged in front of said operator seat and said second display apparatus is arranged in a sidewall of said cab located lateral to said operator seat.

11. The work vehicle according to claim 9 , wherein

said cab has an operator seat in inside, and

said first display apparatus is arranged in front of said operator seat and said second display apparatus is arranged in a sidewall of said cab located above said operator seat.

12. A work vehicle having a cab, comprising:

a protruding portion on an upper side of said cab, which protrudes rearward from a rear portion of said cab;

a first image pick-up apparatus arranged on a rear side of said protruding portion;

a second image pick-up apparatus arranged above said first image pick-up apparatus, which has an optical axis inclined posterosuperiorly relative to an optical axis of said first image pick-up apparatus; and

a rectification member having two divertor baffles, wherein

said two diverter baffles have front ends connected to each other, an interval between said two diverter baffles increases from front to rear in a plan view, and said second image pick-up apparatus is located between said two diverter baffles in a plan view.