PREVENFION BREAK A DOOR
A fire door for preventing breakage is provided to prevent robbery and theft by an invader who forcibly opens the fire door using a tool, by effectively prevent entry of an object through a chink in a door. A fire door(1) for preventing breakage comprises a door frame(2) and a protruded protection w...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | A fire door for preventing breakage is provided to prevent robbery and theft by an invader who forcibly opens the fire door using a tool, by effectively prevent entry of an object through a chink in a door. A fire door(1) for preventing breakage comprises a door frame(2) and a protruded protection wall(3'). The protruded protection wall is fixed by a fastening member so as to block a door chink(4) at a front side of the door frame that supports the door. The protruded protection wall can be formed integrally with a concrete wall that fixes the door. The protruded protection wall can be fixed by a bolt inwardly with respect to the door frame. Alternatively, the protruded protection wall can be mounted by fixing a support piece(8) by an A-screw(6) and fastening the protruded protection wall by a B-screw(7) to cover the support piece. |
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