| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an extender of a step bolt, on which a plurality of workers put their feet on the position of the same step bolt. <P>SOLUTION: The extender of the step bolt includes a cylindrical extender body 2 longer than the length of the step bolt 1 and allowing the step bolt 1 to be inserted thereinto, and a locking means 3 for locking the extender body 2 with the step bolt 1 so as to prevent the extender body 2 from being removed from the step bolt 1. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
