| 摘要 |
An escalator system with wheel chair steps comprising a main frame having an upper end and a lower end, a plurality of steps connected in an endless conveyor loop and capable of circulating along the main frame, and an operating mechanism disposed at a position close to the ends of the main frame. The escalator system further comprises a first wheel chair step disposed between the steps and having a connection arm capable of being displaced toward the lower end of the main frame by a shifter mechanism engageable with the operating mechanism when necessary. The escalator system also comprises a second wheel chair step disposed between the steps and having a rising tread board capable of being raised by a raising mechanism engageable with the operating mechanisms when necessary and a boarding plate capable of being displaced toward the lower end of the main frame by a shifter mechanism engageable with the operating mechanism when necessary. The rising tread board, when raised, is supported by the connection arm displaced in a projected position and defines a combined and enlarged horizontal surface together with the tread board of the first wheel chair step.
|
