| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a movable floor, reducing the weight, natural ventilation in the interior of a building, and vertically elevated in an energy-saving state. <P>SOLUTION: This hydraulic elevating type movable floor includes: a movable floor, an elevating apparatus and a downward inverted movable staircase. In the movable floor, four sides thereof are enclosed by safety handrails formed of a zinc-plated square pipe and a steel mesh, and an air permeable floor surface formed of a metallic frame is constructed on the lower side. The elevating apparatus is composed of a multistage hydraulic cylinder driving device, an oil tank, a driving motor and a transmission device, and disposed below the movable floor, thereby elevating the movable floor to the height within the range where the downward inverted movable staircase reaches. The downward inverted movable staircase is fixed to the safety handrail during non-operation by a safety latch, and at the descending position of the movable floor, it is inverted and disposed along the safety handrail to be in ready state. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
