| 摘要 |
a suspension device that suspends, from a ceiling slab, a beam member including a groove portion which extends along an axial center direction thereof and includes an opening portion narrower than an inner space of the groove portion in a cross-section orthogonal to the axial center direction, the suspension device including: a first suspension member including: a first shaft portion; a first connection portion; and a first supporting portion which supports the beam member; and a second suspension member attachable to and detachable from the first suspension member, the second suspension member including: a second shaft portion which supports the beam member. |
