| 摘要 |
<p>PURPOSE:To correctly lock a wing body on a fixed frame even if the relative position between a receiving metal and a latch plate changes. CONSTITUTION:A latch plate 7 is pivotally installed at the rear edge parts of the bearing arms 4 and 5 by a pivotal shaft 6, and a hook lever 13 is pivotally installed at the center parts of the bearing arms 4 and 5 by a pivotal shaft 14. On the latch plate 7, a plurality of ratchet tooth trains 12 are installed on an arc having a cross sectional pivotal shaft 6 as center on the opposite side to an introducing projection 10, and a counter check tooth part 15 which is engaged and disengaged with the ratchet tooth train 12 is installed at the rear edge part of the hook lever 13. The hook lever 13 is pushed to the ratchet plate 7 and urged by a twist spring 27.</p> |
