| 摘要 |
The elevator work platform assembly comprises a base movable over ground, a n intermediate platform, a first stairway pivotally linked to the base and the intermediate platform and leading from one to the other, a work platform, a second stairway pivotally linked to the intermediate platform and the work platform and leading from one to the othe r, a linkage pivotally linked to the base and the first and second stairways, and an actuator capable of actuating the linkage and first and second stairways to move the work platfo rm between a collapsed position in which it is adjacent to the base and a deployed positi on in which it is located away from the base. The stairways have self-levelling steps to allow access to the work platform in all positions thereof between the collapsed and deployed positions.
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