A DOUBLE-CABLE MOTION TRANSMITTING DEVICE FOR A VEHICLE HVAC SYSTEM

Double-cable movement transmission device, comprising a base (22) provided with a circular seat (30), in the centre of which a shank part (32) having a through-hole (34) is formed, and a rotating pulley (24) comprising a hub part (50) extending inside the through-hole (34) and a collar part (52) concentric with the hub part (50) and extending inside the circular seat (30). An assembly for marking the angular positions of the pulley is arranged inside the circular seat (30), said marking assembly comprising a circular sliding track (62, 62', 62") formed on a radially outer surface of the collar part (52) of the rotating pulley (24), a plurality of notches (64, 64', 64") angularly spaced from one another being formed on the sliding track, and a mounting seat (76, 76', 76") for a spring element (74) adapted to engage the sliding track (64, 64', 64"), the mounting seat being formed on a bottom wall (35) of the circular seat (30).