| 摘要 |
PURPOSE: An opening and closing device for a window is provided to reduce manufacturing costs by simplifying the structure of an opening and closing unit. CONSTITUTION: An opening and closing device for a window comprises a window frame fixing plate, a fixing unit, a locking unit, and an opening and closing unit(40). The window fixing plate is installed in a window frame and has multiple hanging protrusions. The fixing unit is formed in one side of a window. The locking unit is inserted into the fixing unit. The opening and closing unit is composed of a body(50), a rotary unit(60), a sliding unit(70), and a link(80). The front and rear of the body are opened. The rotary unit is rotatably installed inside the body. The sliding unit is coupled to the body and the locking unit. The link is rotatably installed between the rotary unit and the sliding unit. |
