| 摘要 |
On a base plate 1 is an electric gear-motor 2, the output pinion of which acts on a shaft housed within a separator arm 5 which is hollow and open longitudinally so that the pinion can access the shaft, this arm 5 being axially movable in a bush 9 fixed to the base plate 1 via a support 6 and said arm 5 ending in a head 15 in which there are pinions for transmission from said shaft to a rack 22 associated with the door to be actuated. A pair of movable bushes 11 and 12 are fixed with the possibility of positional adjustment on the separator arm 5, forming the end-of-travel stops therefor, so that when the motor is operated, with the door closed, first the separator arm 5 moves outwards, disengaging the door from its housing, and, when the bush 16 comes into abutment, this axial movement of the arm 5 is stopped, the shaft starting to rotate, longitudinally moving the rack and, therefore, the door. <IMAGE> |
