| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To effectively prevent a person or an object from falling down to a pit by shielding an opening of the pit without forming a handrail body to be unnecessarily large while optimizing the upper end position of an elevating handrail body. <P>SOLUTION: An elevating/lowering handrail device includes: a pit P provided on a trap cellar floor F2 at the lower part of a stage floor F1 and provided with an opening to be closed by a lift floor 1 at a lowered position in a lift device; elevating/lowering means 2 disposed in the pit P for elevating and lowering the lift floor 1; a handrail body 3 to be elevated and lowered along the inner wall of the pit P; and a link movement mechanism for elevating and lowering the handrail body 3 when the lift floor 1 is elevated and lowered. In the elevating/lowering handrail device, the link movement mechanism has a traction member 4 whose one end is connected to the lift floor 1 and other end is connected to the handrail body 3 or a stage floor side, the intermediate part of the traction member 4 is disposed to a plurality of pulleys 5b, 5d disposed on the side of the stage floor F1, and is also disposed to one, two or more pulleys 5c, 5e disposed to the handrail body 3. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
