Door Closer Closing Force Auxiliary Device in Smoking-Proof Area and the Operation Method thereof

摘要

The present invention relates to a door closure force assisting device, comprising: a housing coupled to a door closure having a rotary shaft, the door moving between a closed position closed about an opening / closing hinge axis of the door and an open position opened; A closing force transmitting plate received in the housing and rotatable along the rotating shaft; And an elastic member which is engaged with the housing such that the elastic force is brought into contact with the outer side of the closing force transmitting plate in accordance with the rotation of the rotary shaft to assist the closing force of the door, A first elastic spring coupled to the first groove formed in the closed force transmitting plate to provide a first auxiliary closing force to the door in a region where the door is closed, And a second resilient spring which is coupled to the second groove formed on the closed force transmitting plate to provide a second auxiliary closing force to the door, the second auxiliary closing force being opposite to the first auxiliary closing force To the rotation axis. Thus, according to the present invention, it is possible to provide a door closing force assisting device in a smoking zone, which does not particularly require an excessive amount of force for opening the door.