| 摘要 |
PURPOSE: A window, which is automatically locked when closing the window is provided to reinforce the security and to be used at a silver town for old people who do not remember locking the window. CONSTITUTION: A window, which is automatically locked when closing the window comprises a slide knob(11) and a ring(12) having an elastic body. The slide knob is connected to the ring having the elastic body with a wire. The window is automatically locked when closing the window. When opening the window, users just use the slide knob and easily open the window. |
