| 摘要 |
PROBLEM TO BE SOLVED: To firmly install the roof sheet of a wing vehicle and to reduce the man-hours for attaching both edges thereof and the man-hours for replacing the sheet when it is damaged. SOLUTION: A locking structure for both edges of a roof sheet 22 covering a clearance between the support beam and the roof of a wing vehicle comprises a lower fixing rail L which consists of a channeled portion 24 of U-shaped cross section, an irregular portion 26 extending upward from the edge of the channeled portion, a plate spring fixing piece 28, a rotating shaft support piece 30, and a rotating shaft 32; and an upper fixing rail O having one lower edge pivotally attached to the rotating shaft of the lower fixing rail L so that it freely rotates, with an irregular portion 36 formed at the other lower edge and engaging the irregular portion 26. The upper fixing rail energized by the resilient force of a plate spring rotates upwards when rotated through a predetermined angle or more, and rotates downward when rotated through not more than the predetermined angle, with the irregular portion 36 engaging the irregular portion 26 to clamp both edges of the roof sheet in place at the engaging parts of the irregular portions. |
