Patent ID: 8453989

Claim:
A suspension device that suspends, from a ceiling slab, a beam member comprising a groove portion which extends along an axial center direction thereof and comprises 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 comprising: a first suspension member comprising: a first shaft portion; a first connection portion which is provided on a base end side of the first shaft portion, and is connected to the ceiling slab, the first connection portion extending generally horizontally and defining an insertion hole extending vertically through the first connection portion; and a first supporting portion which is provided on a tip end side of the first shaft portion, is inserted into the groove portion through the opening portion, and comes into contact with an inside on one side of the groove portion when the opening portion is assumed as a base line, to thereby support the beam member; and a second suspension member formed as a distinct part from the first suspension member and structured and arranged to be separated from the first suspension member, the second suspension member comprising: a second shaft portion held in contact with the shaft portion of the first suspension member; a second connection portion provided on a base end side of the second shaft portion and connected to the ceiling slab together with the first connection portion of the first suspension member, the second connection portion extending generally horizontally and defining an insertion hole extending vertically through the second connection portion, wherein the respective insertion holes of the first and second connection portions are configured to be aligned with each other to receive a vertically extending suspension bolt therethrough; and a second supporting portion which is provided on a tip end side of the second shaft portion, is inserted into the groove portion through the opening portion, and comes into contact with the inside on another side of the groove portion when the opening portion is assumed as the base line, to thereby support the beam member, the first and second suspension members when separated from each other allowing separate, sequential insertion of the first and second supporting portions into the groove portion of the beam member.