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 the housing portion so as to restrict contact between the first hinge element 30 and the first surface material 4 and the second surface material 5.SELECTED DRAWING: Figure 3 (Grant)
Filing Date: Oct. 29, 2022
Publication Date: May 14, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
