SEPARATE-TYPE FIRE DOOR CLOSING APPARATUS FOR A DOOR CHECK
The present invention relates to a separate-type fire door closing apparatus for a door check, which operates in connection with the door check and is not integrally installed on the door check but rather installed separately from the door check to enable easy manufacture and installation. The separ...
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Format | Patent |
Language | English French Korean |
Published |
03.06.2010
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Online Access | Get full text |
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Abstract | The present invention relates to a separate-type fire door closing apparatus for a door check, which operates in connection with the door check and is not integrally installed on the door check but rather installed separately from the door check to enable easy manufacture and installation. The separate-type fire door closing apparatus of the present invention has a sensing means for easy control. The separate-type fire door closing apparatus has a movable nut which moves forwards along with a screw rod to make the space between the movable nut and a chassis narrow, thus increasing the elastic force of a spring and enabling a rotary disk to prevent the chassis from rotating. On the contrary, when the movable nut moves backwards to make the elastic force of the spring weaker than the elastic force of a door check spring, the door check spring pushes a piston to close a fire door.
L'invention concerne un appareil séparé de fermeture de porte coupe-feu opérant en association avec un ferme-porte, mais non partie intégrante du ferme-porte et en étant séparé pour en faciliter la fabrication et l'installation. Ledit appareil comprend un moyen de détection facilitant la commande. et un écrou mobile qui en se déplaçant vers l'avant le long d'une tige filetée réduit l'espace entre l'écrou et un boîtier, augmentant ainsi la force élastique d'un ressort et permettant à un disque d'empêcher la rotation du boîtier, et qui contraire, en se déplaçant vers l'arrière, rend la force élastique du ressort inférieure à celle du ressort du ferme-porte et pousse un piston qui ferme la porte coupe-feu. |
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AbstractList | The present invention relates to a separate-type fire door closing apparatus for a door check, which operates in connection with the door check and is not integrally installed on the door check but rather installed separately from the door check to enable easy manufacture and installation. The separate-type fire door closing apparatus of the present invention has a sensing means for easy control. The separate-type fire door closing apparatus has a movable nut which moves forwards along with a screw rod to make the space between the movable nut and a chassis narrow, thus increasing the elastic force of a spring and enabling a rotary disk to prevent the chassis from rotating. On the contrary, when the movable nut moves backwards to make the elastic force of the spring weaker than the elastic force of a door check spring, the door check spring pushes a piston to close a fire door.
L'invention concerne un appareil séparé de fermeture de porte coupe-feu opérant en association avec un ferme-porte, mais non partie intégrante du ferme-porte et en étant séparé pour en faciliter la fabrication et l'installation. Ledit appareil comprend un moyen de détection facilitant la commande. et un écrou mobile qui en se déplaçant vers l'avant le long d'une tige filetée réduit l'espace entre l'écrou et un boîtier, augmentant ainsi la force élastique d'un ressort et permettant à un disque d'empêcher la rotation du boîtier, et qui contraire, en se déplaçant vers l'arrière, rend la force élastique du ressort inférieure à celle du ressort du ferme-porte et pousse un piston qui ferme la porte coupe-feu. |
Author | MOON, HONG SIK |
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DocumentTitleAlternate | APPAREIL SÉPARÉ DE FERMETURE DE PORTE COUPE-FEU DE FERME-PORTE |
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Snippet | The present invention relates to a separate-type fire door closing apparatus for a door check, which operates in connection with the door check and is not... |
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SubjectTerms | CHECKS FOR WINGS DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION FIXED CONSTRUCTIONS 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 WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING |
Title | SEPARATE-TYPE FIRE DOOR CLOSING APPARATUS FOR A DOOR CHECK |
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