申请(专利权)人: 三菱電機株式会社 发明人:岡田 真紀,井上 昭彦,近藤 章仁,三村 誠一 摘要: It is aimed at preventing oil leakage to the inside over the entire length of the rail of the escalator. In the escalator (50) of the present invention, the forward rail (70) includes an upper ...