To provide a door device for a storage chamber to close the upper end of a buffering material to damp a shock when a partition body and a holding member are collided with each other and removably mount the buffering material by an insertion part.

A storage chamber comprises a heat insulation box body having a front opening, and double doors situated to close the front opening of the heat insulation box body. A rotatably partition member 15 is situated on the inner surface of the non-pivoted side of the double doors. The partition member 15 comprises a partition body 17 rotatably mounted on the inner surface on the non-pivoted side of one of the double doors, a holding member 16 to stop rotation of the partition plate during release of the door and be mounted on the partition body, and a guide part situated at the front opening of the heat insulation box body and rotating the partition plate. A buffering material is provided at an internal part with an air chamber and formed of a soft material is situated on a collision surface between the holding member 16 and the partition body 17. The buffering material 20 closes an upper surface and is provided at a side or an under surface with an opening.