| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem wherein a proportion of an upstairs side tip of a lift frame hooking on a first step of stairs becomes large when a guide roller and a side roller being a pair arranged in a wall side and a path side are respectively arranged at the same height. <P>SOLUTION: Path side guide rollers 16b, 17b of an upstairs side and a downstairs side are respectively placed in upper sides with respect to wall side guide rollers 16a, 17a of an upstairs side and a downstairs side. Of three side rollers 18a, 19a, 19b, one is placed in a wall side in the upstairs side, and one each is placed in a wall side and a path side in the downstairs side. <P>COPYRIGHT: (C)2013,JPO&INPIT |
