US Patent 7905278 Vehicular air conditioner

A vehicular air conditioner having an air conditioner case including an air mix area, where a defroster opening, a front seat vent opening, a foot opening, and a back seat vent opening are located on the air conditioner case and configured to open and close the air mix area. A defroster door is configured to open and close the defroster opening. A vent foot switching door is configured to open and close the foot opening and the front seat vent opening selectively. A foot door is configured to open and close the foot opening. A back seat vent door is configured to open and close the back set vent opening. The back seat vent opening is positioned in a vicinity of the foot opening and the back seat vent door and the foot door are downstream from the vent foot switching door.