| 摘要 |
PURPOSE:To permit the smooth opening and closing operation of a door free from chattering by installing the first guide mechanisms for guiding the taking- out and pulling-in of the door at the door top part and installing the second guide mechanisms for guiding the opening and closing operation of the door at the door tail part. CONSTITUTION:If an opening and closing cylinder 5 and an entrance and exit cylinder 7 are operated when a door 1 is at the position shown by full line, the door 1 is shifted to the taking-out position shown by the two-point dotted line A, guided by the first guide mechanisms 3 and 8 installed over and under a door top part 12 and a door tail part 11. At this time, also the guide rail 41 of the second guide mechanism 4 installed over and under the door tail part 11 and the door top part 12 shifts integrally outside. Further, the door 1 is shfifted to the opening position A' shown by the two-point dotted line, guide by the second guide mechanisms 4 and 9. Therefore, the opening of the door 1 can be carried- out smoothly free from chattering by the first and the second guide mechanisms 3 and 8 and 4 and 9. Further, the closing of the door 1 is executed reversely to the above-described opening operation. |
