| 摘要 |
The driving device for sliding doors, comprising a rack (1) integral with the sliding door, a driving pinion (2) engaged with said rack (1) driven by a motor (3) integral with said pinion (2), that is vertically movable, and it is characterised in that the pinion (2) or the motor (3) are linked with a spring (4) that presses said pinion (2) against the rack (1), engaging the pinion (2) with the rack (1). It permits to guarantee a pressure engagement of the pinion with the rack and permits to absorb the irregularities in the height of the rack, permitting therefore the fixation of the rack to the sliding door to be carried out at the factory, that guarantees a better quality and a decrease of the cost, because the final adjustment is not carried out at the building site. |
