| 摘要 |
PROBLEM TO BE SOLVED: To provide a door device which effectuates slow closing motion, space saving for the upper section of a frame body and a low cost for the device by finely adjusting such as easing the acceleration of a sliding door at a proper position. SOLUTION: In an upper frame 5, a door way side hanging rail 6 and a door pocket side hanging rail 7 are arranged side by side with a difference between their levels and inclined downward in the direction to the door wayside. The lower side ends of the door way side hanging rail 6 and the door pocket side hanging rail 7 are set to nearly the same height. A front part hanging wheel 9 is provided so as to be supported and guided to the door way side hanging rail 6 on the upper door way side of a door body 8 and a rear part hanging wheel 10 is provided so as to be supported and guided to the upper section door pocket side hanging rail 7.
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