| 摘要 |
The control (1) comprises a toothed wheel (2) fixed to a first shutter (3) which closes and opens a first air outlet duct. A central pivoting piece (4) which meshes with the toothed wheel is connected to a cable (8). A second shutter (13) for a second air outlet duct is activated by an arm (9) fixed to the central piece and a guide (12) fixed to the second shutter. The arm engages the guide by two projecting parts (10,11). The first part (10) displaces in two grooves (14,15) located in the guide arms (16,17). The second part is displaced on the external edge of these arms. Between the two arms the guide has a hollow part (18) in which the second projecting piece fits and causes pivoting of the guide enabling passage of the second shutter from its closed to open position.
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