The present invention can reduce the labor cost of the coffin work to be able to coffin alone, can coffin without compromising the dignity to the body, also to the deceased of the figure you are sleeping comfortably, bereaved family, etc. barely time until, to provide a coffin that can snuggle up over a long time. On the bottom plate 2 to place the A body 1, it is connected to freely undulating pivoting the side plates 3 elongated along the direction of the long side of the bottom plate. The side plates 5 short-length along the short-side direction of the bottom plate 2, is fitted with can be formed on the side plates 3 elongated during standing. The side plates 5 of the elongated side plates 3 and the short form is raised, and a lid 10 for closing an opening upper surface when assembled into a box shape.FIELD 1【課題】一人で納棺できるようにして納棺作業の労力コストを軽減でき、遺体に対する尊厳性を損なうことなく納棺でき、またゆったりと寝ている姿の故人に、遺族等がぎりぎりの時間迄、長い時間にわたって寄り添うことができる棺を提供する。【解決手段】遺体1を配置する底板2に、底板の長辺方向に沿った長尺状の両側板3を起伏回動自在に連結する。底板2の短辺方向に沿った短尺状の両側板5を、起立時の長尺状の両側板3に嵌め付け可能に形成する。長尺状の両側板3と短尺状の両側板5を起立させ、箱形に組み立てたときの開口上面を閉塞する蓋10を備える。【選択図】図1