| 摘要 |
The invention relates to an openable roof plate especially for vehicles which is joined in an articulated manner by one of its longitudinal edges to a roof frame which can be secured to the vehicle roof, and which is equipped with an opening and closing device engaging on its other longitudinal edge, a helical spring being used which is connected to a drive nut which can be set into rotation by an operating device in such a way that opening or closing of the roof plate can thereby be achieved.
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