| 摘要 |
PROBLEM TO BE SOLVED: To provide a deck board for cargo work which is easy to handle, allows even a user who does not know how to use to easily rise and fall a lip thereof and use safely the board.SOLUTION: In a deck board for cargo work having a lip 4 pivotally attached to a tip edge of a deck plate 3, a gas spring 50, configured so that rapid advance and retreat of an operation shaft 51 is suppressed by flow resistance of fluid encapsulated into a cylinder 52 and the operation shaft 51 is energized toward an extending direction by application of pressure to the fluid by high-pressure gas encapsulated into the cylinder 52 across a free piston 57, is provided on a lower surface of the deck plate 3, the operation shaft 51 is connected to the lip 4, the lip 4 is supported by elongation of the gas spring 50 and at the same time the lip 4 is suppressed by the flow resistance from rapidly rising and falling.SELECTED DRAWING: Figure 2 |
