Cabin for work vehicle

摘要

A cabin for a work vehicle comprises: a driver's seat positioned within the cabin; cabin frames including at least a transverse frame located in a rear region of the cabin; a roof supported by at least some of the cabin frames; at least one air-conditioning duct located within the roof; an air-conditioning unit located rearwardly with respect to a rearward end of a seat portion of the driver's seat and adjacent the transverse frame for conditioning air and for feeding air-conditioned air into the at least one air-conditioning duct.

主权项

1. A cabin for a work vehicle having an air-conditioning duct (15) and an air conditioning unit (A), the cabin comprising:
an outer roof (13) and an inner roof (14) defining a space (a) therebetween; an ambient air feed opening (13C) and an ambient air intake opening (13B) defined in the outer roof (13), the ambient air intake opening (13B) drawing in ambient air toward the ambient air feed opening (13C); a circulation opening (14A) defined in the inner roof (14) for drawing in air within the cabin; a valve mechanism (17) switchable between a first state in which the ambient air is drawn in through the ambient air intake opening (13B) to the space (a) defined between the outer roof (13) and the inner roof (14), and a second state in which the ambient air is cut off for circulating the air within the cabin to/from the space (a); a driver's seat (12) positioned below the inner roof (14); a pair of right and left front vertical frames (2); a pair of right and left first rear vertical frames (2); a pair of right and left second rear vertical frames (2) extending rearwardly of the first rear vertical frames (2); and an annular upper frame (6) extending over respective upper ends of the front vertical frames (2), the first rear vertical frames (2) and the second rear vertical frames (2), the upper frame (6) including:
a front transverse frame portion extending over the respective upper ends of the right front vertical frame (2) and the left front vertical frame (2);a right fore-and-aft frame portion (6A) extending over the respective upper ends of the right front vertical frame (2), the right first rear vertical frame (2) and the right second rear vertical frame (2);a left fore-and-aft frame portion (6A) extending over the respective upper ends of the left front vertical frame (2), the left first rear vertical frame (2) and the left second rear vertical frame (2); anda rear transverse frame portion (6B) extending over the respective upper ends of the right second rear vertical frame (2) and the left second rear vertical frame (2), the rear transverse frame portion (6B) having fore-and-aft extensions at opposite ends thereof to form a U-letter as seen from above, the rear transverse frame portion (6B) projecting rearwardly from the right and left second rear vertical frames (2); wherein the air conditioning unit (A) is housed within the space (a) defined between the outer roof (13) and the inner roof (14); wherein the air conditioning unit (A) is located rearwardly of the right and left second rear vertical frames (2) and mounted adjacent to and inwardly of the rear transverse frame portion (6B) in form of the U-letter; and the air conditioning unit (A) is located rearwardly with respect to a rearward end of the driver's seat (12).