| 摘要 |
PURPOSE: A sliding window is provided to prevent a window from being separated from a window frame in use or the window frame and the window from being excessively apart from each other. CONSTITUTION: A sliding window comprises a separation prevention device(B). The sliding window comprises a wheel(20), an inner case(40), a spring(30), and an outer case(50). The inner case contains a wheel and vertically moves with the wheel. The spring elevates the inner case. The outer case accepts the inner case. |
