Air conditioning duct structure of cabin in tractor

摘要

An air-conditioning duct (62) is provided with a plurality of air-blowing ducts (62R∙62L) which guide conditioned air. The air-blowing ducts (62R∙62L) are provided with divergence parts (62Rb∙62Lb) which form main flow paths (Fm) and branched flow paths (Fb) for the conditioned air. The divergence parts (62Rb∙62Lb) are provided with a flow-path switching device (96) with which a flow direction of the conditioned air can be switched between the main flow paths (Fm) and the branched flow paths (Fb). The flow-path switching device (96) is provided with a cooperation mechanism which makes a valve plate (934 or 944) disposed in one (62Rb or 62Lb) of the divergence parts cooperate with a valve plate (944 or 934) disposed in the other (62Lb or 62Rb) of the divergence parts.