| 摘要 |
PROBLEM TO BE SOLVED: To provide an opening-preventive fitting metal unit capable of reducing the outline dimension at the containing time of a working table, confirming the locked state from the outside with ease, and keeping the locked state with ease regardless of the atitude of the working table. SOLUTION: A bar-form member having a U-shaped hallow section is used for first and second opening preventive fitting metal units. The first and second opening preventive fitting metal units are connected by a hexagonal bolt 15, and pivoted to be freely rotatable. A lever unit 13 is fitted to the second opening preventive fitting metal unit 12 to lock and unlock the first and second opening preventive fitting metal units. The lever unit 13 is constituted of a stepped bolt 19 slidably retained to a slide groove 12a, an operation lever 18 in which a recessed engaging part 18b is formed, and a tensile coil spring 21 imparting a force to the stepped bolt 19. COPYRIGHT: (C)2005,JPO&NCIPI
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