| 摘要 |
<p>A ventilation unit, for use in a vehicle, comprising a rotary door 13 which includes a circumference wall 13a connected to a rotation shaft by side plates 13b. Protrusion walls 13d and 13e are provided along the circumference wall and side plates in order to position the door over inside or outside air vents and to seal the unit when in place in combination with packing members 14 and 17. At least one gap is provided between the protrusion walls and the corresponding sealing surface of the unit to allow any water that enters the unit to escape.</p> |
