| 摘要 |
PROBLEM TO BE SOLVED: To provide a partition for improving workability of uplifting, by dispensing with a support when uplifting, by improving stability when uplifting by inflating a tube of a column.SOLUTION: An upper structure part 12C of a column 12 is extended out by gradually extending in response to an increase in pressure of air in a tube of the column 12 when receiving supply of compressed air 92 to an air supply port 12B in a shortened state toward a sill part 12A side. The pressure of the air in the tube of the column 12 required for extending the upper structure part 12C of the shortened state, is larger than the pressure of the air in the tube of the column 12 required for supporting so that the tube and a seat 10A of a beam 11 do not fall by the tube of the column 12. |
