Patent ID: 9434233
Filing Date: 2016-09-06
CPC Classification: B60H

Claim Text:
1. A vehicular air conditioner, comprising a unit case and an air mix damper that is disposed in the unit case and that adjusts a flow rate of air delivered into a heating passage including a heater core after being passed through an evaporator and a flow rate of air delivered into a bypass passage that bypasses the heater core, wherein a distal end portion of the air mix damper is in contact with a seal surface of the unit case, the distal end portion has a plurality of asperity portions which are formed on a surface thereof which is in contact with the seal surface of the unit case at a maximum heating position, and are disposed along the width direction of the air mix damper transverse to a direction of air flow, wherein an elastic insulator having a predetermined thickness, which is attached along the asperity portions and which forms asperities similar to the asperity portions at a side thereof which exists prior to coming in contact with the seal surface of the unit case, wherein where the elastic insulator is in contact with the seal surface on the unit case, a gap is created between a portion of the seal surface and two adjacent asperity portions of the elastic insulator, and wherein the gap is decreased by compressing the elastic insulator between a projecting portion of the asperity portion and the seal surface, wherein, when the elastic insulator is brought in contact with the seal surface at the movement to the maximum heating position, the elastic insulator is deformed and compressed until the asperities are vanished and there is no gap between the seal surface and the air mix damper.