Japan Intellectual Property Rights: DOOR DEVICE

Japan, Sept. 16 -- SANWA SHUTTER CORP has got intellectual property rights for 'DOOR DEVICE.' Other related details are as follows:

Application Number: JP,2022-173837

Category (FI): E06B3/82,E05D7/082,E06B5/16

Stage: PROBLEM TO BE SOLVED: To provide a door device in which a pivot hinge can be applied to a heat shield door.SOLUTION: In a door device in which a door body 2 is connected to a door frame 1 via upper and lower pivot hinges 3, recesses are formed at upper and lower ends of the door body 2 by bending a first surface material 4 and a second surface material 5. A door bottom side portion of the recess is a housing portion for a first hinge element 30. Thermal expansion fireproof members 60, 61, 62, 70, 71, and 72 are provided in t...