| 摘要 |
A side hung and bottom hung double-opening window includes a first casement, a handle, a first top-link hinge and a first down hinge, a first angle-turning device, a second casement, a second top-link hinge and a second down hinge, a second angle-turning device, a latch block, a sliding piece, and a latch piece. The window can realize side hung and bottom hung double-opening, thus providing the user with other options to open it. Furthermore, the window has a smaller size and a higher reliability. |
