PROBLEM TO BE SOLVED: To provide a cabin mounted on a tractor which is capable of efficiently introducing outside air not only from a back side but also from a transverse outer side, and easily performing the maintenance of an air-conditioner or the like.
SOLUTION: In the cabin 7 for surrounding an operation unit of a tractor, a rear window 10 at a rear side of the cabin 7 is provided so that its lower end side is subjected to the vertically rocking and opening/closing operation with its upper end side being a rocking supporting point via an expandable damper 14, and side windows 23 which are longitudinally rockable and openable/closable with the rear window 10 side being a supporting point are provided on right and left sides of the rear window 10. A roof 11 on an upper part of the cabin 7 is pivotably attached to a rock-supporting shaft 13 common with the rear window 10 in a vertically rockable and openable/closable manner.
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