| 摘要 |
A gull wing door of a wing body truck is provided to reduce the radius of rotation of the gull wing door by varying the height of the gull wing door if necessary. In a gull wing door of a wing body truck, a cargo compartment is opened and closed when a door of the cargo compartment is rotated upward and downward. In the gull wing door, a space section opened to the lower side is provided on the inner side of one lower end of a rotational shaft. A shaft hole is formed in the rotational shaft. In an L-shaped rotation door member(7), a roller on which a wire is wound is provided in the space section. One end of a variable door member is fixed to a wire. The variable door member is guided into the interior of the space section to appear.
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