DOOR HINGE

A door hinge having a folding structure is provided to use for a folding structure of a soundproof door and a fireproof door, to improve the structure of a hinge by diversifying a door and a doorframe, to heighten soundproof and fireproof effects, and to resist a heavy door, and to have a wide coupl...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KANG, SUNG TAE, CHOE, MUK SEON, CHOI, WON KYOU, CHOI, WON KEUM
Format:	Patent
Sprache:	eng
Schlagworte:	FIXED CONSTRUCTIONS HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICESFOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTOOPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOTOTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THEWING KEYS LOCKS SAFES WINDOW OR DOOR FITTINGS
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Beschreibung
Zusammenfassung:	A door hinge having a folding structure is provided to use for a folding structure of a soundproof door and a fireproof door, to improve the structure of a hinge by diversifying a door and a doorframe, to heighten soundproof and fireproof effects, and to resist a heavy door, and to have a wide coupling area of a door and a doorframe. A door hinge having a folding structure comprises a door bracket coupled to a door and a doorframe by inserting a shaft pin, a cap and a ring bushing, wherein the door bracket comprises an inner door bracket(90) provided with two wing hanging projections(30) having gap grooves on two sides and a bend(70) having the folded center, and an outer door bracket(100) provided with a housing hole(40) to house the inner door bracket, a bend(80) having the folded center, and a rotating groove formed on a rotating groove hanging projection(60).