COOL AND HOT AIR BLOWING DEVICE OF CONSTRUCTION MACHINERY

To provide a cold/warm air outlet assembly for construction a machine, said assembly being capable of fully meeting desires on the comfort of a working environment of an operator under air conditioning and use of air conditioning for a multiplicity of purposes, an upper outlet tube 2 and lower outlet tube 3 are formed into substantially tubular shapes having conical circumferential walls with walls, through which air out lets 20.30 are formed, being included as tilted walls. The upper outlet tube 2 is resiliently fitted and connected to the lower outlet tube 3, and the lower outlet tube 3 is resiliently fitted and connected to a vertical part 11a of an air conditioner duct 11. The upper and lower outlet tubes 2,3 are, therefore, turnable in horizontal direction at their connected parts. By operating air-direction control knobs 24,34 arranged in the air outlets 20,30 directed toward desired turned positions, the vertical directions of the internal fins 21-21,31-31can be adjusted to cause cold/warm air to blow out in the desired directions, respectively.