| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a simple and reliable door closure system which enables a door to quickly and automatically continue the initial operation as soon as an obstacle is removed after repeatedly crashing the obstacle but at the same time enables both the door and the obstacle to be protected. <P>SOLUTION: The system for controlling the door enables the door to drive in a first direction at speed v1 from a first position to a last position of the process. The control system is designed in a manner that balances sufficiently high normal operation speed v1 of the door with an intention to prevent both an obstacle and the door from being damaged by reducing the speed of the door to v3, which is less than v1, at a position close to a crash position stored in the control system. Consequently, the control system has a safety function with means of keeping the door an operational state even though the door is crashed to the obstacle positioned on the process and enabling the door to automatically continue the initial operation as soon as the obstacle is removed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
