| 摘要 |
<p>The door has a flexible apron (1) windable by a winding shaft (3) electrically driven by two motorization assemblies (10A, 10B). Each assembly has a brake (16A, 16B) immobilizing the shaft. Each assembly is in catch with an end (3A, 3B) of the shaft. The power of each assembly is insufficient so that the assembly assures driving of the shaft in all possible configuration of the apron. A control unit (7) cuts the power supply of one assembly exerting a pulling torque for the apron in case of failure of the other assembly, when overload fault of the former assembly is detected. An independent claim is also included for a door operation controlling method.</p> |
