Abstract: The object of the invention is an arrangement in hatch structure (1) to be installed in a vehicle body (2). The arrangement comprises a hatch, the edges of which are bent downwards, which hatch is mainly horizontal when in the closed position, an opening (6) in the vehicle body (2), which opening (6) is smaller than the said hatch, a packing (4) for sealing the hatch and the opening (6) in relation to each other when the hatch is closed, and a hatch operating mechanism that incorporates at least one body part (7), which has sliding faces (8, 18) for a slide (9) on which the slide (9) rests, a lever (11) that is connected to the slide (9) by means of a first joint (12) and is supported near the edge of the opening (6) in the vehicle body (2) by means of a second joint (13), and a compression spring (10) located in the slide bed, which compression spring constantly exerts force on the slide (9) so as to push it.