Control device for motor vehicle air-conditioning system

摘要

The air conditioning control device has a support structure, a single control member supported by the structure for rotation about an axis of rotation, and at least one pair of rotatable members driven by the control member through respective transmission devices. The control member (12) comprises at least one abutment surface (22) which is eccentric with respect to the axis of rotation (13) of the control member (12) and at least one pair of eccentric pins (18). The transmission devices each comprise a lever member (24, 30) articulated to the support structure (15) and provided with a second abutment surface (27, 34) corresponding to the first abutment surface (22) of the control member (12) and with a guide portion (28, 32) corresponding to one of the eccentric pins (18). The first abutment surface (22) and one of the eccentric pins (18) of the control member (12) are adapted to cooperate alternatively with the second abutment surface (27, 34) and with the guide portion (28, 32) of a lever member (24, 30) for locking the lever member (24, 30) in position and for rotating it respectively, in order to effect the differential rotation of the rotatable members (14a, 14b).