| 摘要 |
<p>An expansion anchor comprising an anchor stem (11,21,41) having a holding flange (16,46) and a lock member (15,25,45) having a corrugated portion (17,27,57) is inserted into a fitting hole (H) bored in a concrete or other rigid materials, and secured in the hole by forcing the lock member to squash the corrugated portion. The corrugated portion (17,27,57) thus squashed expands to come into close engagement with the inner surface of the fitting hole, so that the expansion anchor is steadily secured in a non-removable state. <IMAGE></p> |
