To easily maintain a door in a temporary holding state by juxtaposing to engage a magnet magnetizing a magnetization part provided on the door or a magnetic material-made door temporary holding part on the door stop part of an resilient material.

A magnet magnetizing a magnetization part provided on a door 7 or a magnetic material-made door temporary holding part 4 is juxtaposed to be engaged on resilient material-made door stops 2, 3. Then, the door stops 2, 3 are disposed upward and downward of the door temporary holding part 4 respectively. The door temporary holding part 4 is made an annular magnet body, and the magnetization face 4a is loosely fitted in the intermediate of the upper and lower door stops 2, 3 so that it can freely go in and out from the outer faces of the door stops 2, 3. Next, a part 8 to be held is formed of the magnet or a magnetic material to be made the magnetization part. Thereby the door can be maintained in a temporary holding state, the part 8 is also used as the magnetization part to be formed inexpensively, and impact to the door stops 2, 3 and the door temporary holding part 4 can be relieved.