| 摘要 |
PURPOSE:To make free the selection of number and disposition of air discharge ports and to facilitate the change of an indoor layout by connecting individual blasting columnar bodies through flexible ducts to a plurality of branch boxes connected to a horizontal duct installed on the lower surface of the slab of the ceiling and pneumatically communicating with each other. CONSTITUTION:Wirings 14 for power supply and communication cables 16 are installed at the inner side bottom part of a horizontal duct 22 fixed to the lower surface of a floor slab 10 on the upper story. Further, a plurality of flexible ducts 24 are suspended from the lower surface of branch boxes 20 connected via a connecting pipe 18 to both side surfaces of the horizontal duct 12, and the lower ends of the ducts 24 are connected to the upper ends of individual blasting columnar bodies 26 having a hollow frame whose horizontal section is substantially an equilateral triangle, and pneumatically communicating with each other. Further, various cords 28 are inserted from the upper ends of the individual blasting columnar bodies 26 into wiring accommodating pipes 22 connected to the branch boxes 20. End edges of a partition wall 30 about the side surfaces of the individual blasting columnar bodies 26 to form a work space 40 accommodating various OA machines. Therefore, the change of indoor layout becomes easy. |
