Patent ID: 10131199

Abstract:
A guide groove is provided on both sides in a door width direction of a plate-like portion of a door. A radius of curvature of the plate-like portion in a single non-mounted state is set more than that of the guide groove, to thereby support both end portions in the door width direction of the plate-like portion respectively at three abutment points P1 to P3. A rib is provided in the plate-like portion to extend from one end portion in the door width direction of the plate-like portion to the other end portion thereof, so that force generated from both end portions in the door width direction of the plate-like portion is transferred to a center portion in the door width direction of the plate-like portion via the rib. Therefore, it can prevent the center portion and vicinity of the plate-like portion from being deformed in the direction away from a seal surface of the air conditioning case.