| 摘要 |
The box (1) has stretched sheets (7, 8) fixed at a base of a movable inner frame (2). A housing (3) receives the inner frame. A connecting mechanism (10) connects the inner frame to the housing and permits movement of the inner frame with respect to the housing, where the movement of the inner frame combines a vertical translation phase with a horizontal translation phase. The mechanism comprises a telescopic support (11) adapted to extend along a vertical axis, where an upper end of the telescopic support is fixed to the housing. |
