| 摘要 |
The present invention relates to a technology relating to a spacer used to install a fire door preventing fire spreading and combustion on a door frame. The present invention relates to the spacer used for installing a fire door, which increases binding force and adhesion force between the fire door and a hinge bracket to allow sturdy installation of the fire door and which enhances durability by preventing damage and deformation after installation by being easily installed as well as increasing adhesion force between the fire door and the hinge bracket with a coating layer for restricting movement. According to an embodiment of the present invention, the spacer is installed to be fixed by being inserted in between a base plate of the fire door and the hinge bracket. The spacer is characterized by being formed in a rectangular shape and molded with synthetic resin material having excellent durability and fire resistance while having a long hole in a longitudinal direction into which a coupling bolt is inserted. Additionally, as an embodiment of the present invention, the spacer is characterized by a coating layer of the soft synthetic resin material formed on the upper surface and the lower surface adhered to the base plate of the fire door and the hinge bracket while having embossing formed on the upper surface and the lower surface thereof. |
