| 摘要 |
A door closer is provided to be easily manufactured, to be installed inside the door frame and to save manufacturing cost. A door closer comprises a fixture(2) fixed to the top one side of the door(1) to the anchoring bolt, a thing in which the wire(4) is fixed to the fixing plate(3) protruded to the front side of fixture, and a thing in which a roller apparatus(7) is inserted changing the direction of the wire to inside and outside after forming a hole at the door frame(5). A load operating unit is set up in the lower end of interior of the door frame. The load operating unit inserts the weight inside the door frame. The wire is fixed on the upper of weight. |
