Patent ID: 8366524

Claim:
A cabin of a work vehicle having an air conditioning unit, the cabin comprising: a roof ( 7 ) of the cabin ( 1 ); and the air conditioning unit (A) arranged in a rear portion of the roof ( 7 ), wherein the roof ( 7 ) comprises: a hollow outer roof ( 13 ) having an ambient air intake opening ( 13 B) for introducing an ambient air to a hollow of the outer roof ( 13 ), and an ambient air feed opening ( 13 C) formed in a lower face of the outer roof ( 13 ) for allowing the hollow to communicate with the air conditioning unit (A); and an inner roof ( 14 ) disposed under the lower face of the outer roof ( 13 ) to form a space therebetween, in which space the air conditioning unit (A) is disposed, an air conditioning duct ( 15 ) comprising separate right and left lateral air conditioning ducts ( 15 B, 15 B) is located frontwardly with respect to the air conditioning unit (A) and in right and left lateral regions of the roof ( 7 ), which branches from the air conditioning unit (A) and extends to and terminates at the front portion of the roof having a windshield ( 25 ), the right and left lateral air-conditioning ducts ( 15 B, 15 B) being disposed in the space between the outer roof ( 13 ) and the inner roof ( 14 ) so that a secondary space is formed between an inner face of the space and an outer face of the air-conditioning duct ( 15 B), and wherein each lateral air conditioning duct ( 15 B) comprises: a front terminal which is provided in the front side of the roof ( 7 ) and serves a terminal of an air path in the air conditioning duct ( 15 B); a bent duct portion on a front end portion thereof, which is bent inward with respect to a vehicle body; a first blow-off opening ( 15 a ) formed in a front end portion of the bent duct portion, which opening is directed downward for blowing off conditioned air toward the windshield ( 25 ) of the cabin ( 1 ); and a second blow-off opening ( 15 a ) formed in a bent portion between the bent duct portion and the remaining portion extending in a front-rear direction, which opening is directed downward, the left bent duct portion comprises a linear portion extending diagonally forward right toward a front right side of the vehicle body when viewed from above, and the right bent duct portion comprises a linear portion extending diagonally forward left toward a front left side of the vehicle body when viewed from above.