Title:
FIREPROOF SCREEN
Document Type and Number:
Japanese Patent JP2021195759
Kind Code:
A
Abstract:
To provide a fireproof screen that can be closed securely with little force.SOLUTION: A slave door hinge 31, which serves as a pivoting axis 33 of a slave door weight 6 installed in the lower part of a slave door screen 2, is provided with a contacting part 32 that protrudes toward an evacuation entrance when the slave door weight 6 is opened. When the door is closed, a door tip (protrusion 22) of a main door weight 5 contacts the contacting part 32 to push to the closed side, causing the slave door weight 6 to rotate to the closed side. By providing the contacting part 32 in the slave door hinge 31, the force when the main door weight 5 contacts the contacting part 32 can be efficiently used, and the slave door weight 6 can be securely rotated to cover the main door weight 5 with less force.SELECTED DRAWING: Figure 6
More Like This:
| WO/2011/009160 | A SCREEN ASSEMBLY |
Inventors:
MOROTOME MITSURU
ISHIDA TADASHI
ISHIDA TADASHI
Application Number:
JP2020101563A
Publication Date:
December 27, 2021
Filing Date:
June 11, 2020
Export Citation:
Assignee:
TOYO SHUTTER CO
International Classes:
E06B9/17; A62C2/10; E05F1/14; E05F17/00; E06B5/16; E06B9/13
Attorney, Agent or Firm:
Masao Yanagisawa
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