To provide a fire door closing device for closing a fire door and a fire door, which can close an opening of a structure for exercising the disaster prevention such as fire prevention and noise insulation properties, for closing the fire door with high airtightness without having a user operating a handle lever, etc.
A rod 40 is released from a holding state by a trigger device 60 and allowed to move upward by a cremorne lock 70 when a door body 20 turns in a closing direction. Then the tip end section 40a of the rod 40 is inserted inside a receiver 50 while being guided by a tapered surface 40c and abutted surface 40e by the energizing force of a compression coil spring 42, in this time the door body 20 turned around hinges 15, 15 closes an opening 10 while keeping in contact with and pressurizing a seal material 16 to achieve disaster prevention such as fire prevention and noise insulation properties required for the fire door 1.
IZUKURA KOJI
NAKAMATA KENJI
KUNO ZENZO
TETSUYA KOGYO KK
OILES ECO CORP
CHUO HATSUJO KK
| JPH0941763A | 1997-02-10 | |||
| JPH112057A | 1999-01-06 | |||
| JPH0397235U | 1991-10-07 |