| 摘要 |
PURPOSE: To smoothly and surely open and close a door by providing doors through an endless roller chain and a connecting mechanism in such a manner as to be capable of mutually approaching and separating. CONSTITUTION: A motor 14 of a driving device 11 is normally rotated to rotate and move a roller chain 10 and connecting mechanisms 12, 13 clockwise, whereby two doors 6, 7 are mutually approached, and closed. A moving error of the roller chain 10 when the doors 6, 7 contact each other is absorbed by the compression coil springs of the connecting mechanisms 12, 13, and the compression coil springs consequently compress seal members 6a, 7a by repelling forces. The motor 14 is reversely rotated to rotate the roller chain 10 and the connecting mechanisms 12, 13 counterclockwise, whereby the two doors 6, 7 are mutually pulled and opened. |
