AIR PASSAGE OPENING/CLOSING DEVICE

摘要

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.

主权项

1. An air passage opening/closing device comprising:
a case forming an air passage; a slide door including a plate-like portion slidably disposed in the case, the slide door being adapted to open and close the air passage by the plate-like portion; and a guide groove including a windward sidewall portion formed in the case to extend in a door movement direction on a windward side with respect to the plate-like portion, and a leeward sidewall portion formed in the case to be opposed to the windward sidewall portion on a leeward side with respect to the plate-like portion, the guide groove guiding a movement of the plate-like portion by the windward sidewall portion and the leeward sidewall portion, wherein the guide groove is disposed at both sides of the plate-like portion in a door width direction, a radius of curvature of the plate-like portion in a single non-mounted state is set more than a radius of curvature of each of the windward sidewall portion and the leeward sidewall portion, a center portion in the door movement direction of the plate-like portion is abutted against one of the windward sidewall portion and the leeward sidewall portion, and an end portion in the door movement direction of the plate-like portion is abutted against the other one of the windward sidewall portion and the leeward sidewall portion, such that the plate-like portion is elastically deformed, when the plate-like portion is disposed in the case, and the plate-like portion is provided with a rib extending from one end portion of the plate-like portion to the other end portion of the plate-like portion in the door width direction, and protruding from a surface of the plate-like portion toward a windward side.