| 摘要 |
PURPOSE:To release a motor from the burden of the load of a vane and realize the miniaturization of the motor and the reduction of cost. CONSTITUTION:The outlet port 2 of cold air is equipped with a vane 5 swung in a vertical plane within a predetermined range by a motor 3 through a link mechanism 4. In the vane 5, whose center of rotation is at a biased position toward the widthwise direction of the vane 5, the gravity of the vane 5, which is applied on the center of rotation of the vane 5 upon the swing of the vane 5, is received by the resilient force of a spring 9 provided in the link mechanism 4. The gravity of the vane, which is generated by the swing of the vane, is not applied on the motor driving the vane through the link mechanism whereby the load of the motor is reduced and the motor itself can be miniaturized so as to have a low torque. |
