| 摘要 |
A window assembly comprises a movable frame 14 coupled to a fixed frame 12 to allow the moveable frame 14 to be swung open and closed. A male unit 40 and a female unit 42 are arranged one on the rear edge of the movable frame 14 and the other on the corresponding edge of the fixed frame 12 to allow them to cooperate as the window is opened and closed. The male and female units 40,42 are mounted intermediate the ends of the edge of the frame. The male unit 40 comprises a base 54 from which projects a spigot 46 with a tapered engagement surface 48. The female unit 42 comprises a mounting plate 62 which supports a tube 60. The mouth 64 of the female unit 42 may be tapered. There are provided many further options to the arrangement. |
