| 摘要 |
PURPOSE: An electric plug in/out sliding entrance door for a low floor bus and a passenger transportation vehicle is provided to prevent the entrance door from being opened by external force. CONSTITUTION: An electric plug in/out sliding entrance door for a low floor bus and a passenger transportation vehicle comprises brackets(12), an over-center shaft(16), a drive unit(20), over arms(31), over links(32), shaft supports(40), entrance door convey screws(44), left and right entrance doors(50,52), over link units(60), and cam guide rails. The brackets are installed on the top of the entrance of a vehicle. The over-center shaft is rotatably installed in the brackets. The drive unit powers the over-center shaft. One end of each over arm is fixed to both ends of the over-center shafts. One end of each over link is hinged on the other ends of the over arms. The shaft supports are hinged on the other ends of the over links.
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