| 摘要 |
<p>The device comprises a single motor (30), a transmission (40) which is connected to the motor (30) and to the sheath (22) and has an input (410) connected to the motor (30) and two outputs (421, 422) connected to the movable body (222) in such a way that one (421) of these outputs is connected to the sliding element (2221) in order to give it a translational movement and the other (422) of these outputs is connected to the tilting element (2222) in order to give it a tilting movement and which are arranged so that both outputs (421, 422) are driven at coupled relative speeds for the depth adjustment of the two elements (2221, 2222) of the movable body (222) and of the lengths (211, 212) of shaft (21) which they carry and so that only the output (422) connected to the tilting element (2222) is driven for the tilt adjustment of the tilting element (2222) and of the length of shaft (211) which it carries, and a control connected to the motor (30) and to the transmission (40) to operate it and bring about translational movement in the two opposite directions for depth adjustment or bring about tilting in the two opposite directions for tilt adjustment and also stoppage.</p> |
