| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a telescopical joint box that allows a worker to complete covering work even by one hand when the worker executes the work for covering a connecting-wire bundle with a joint box while being on a ladder. <P>SOLUTION: A pair of engaging means composed of a concave part and a convex part is provided between a first box element and a second box element. The engaging force of the engaging means is set so that even if the first box element receives resisting force when the connecting-wire bundle is covered with the first box element, a position relation of the second box element with respect to the first box element is in a fixed state, and also, transmission force larger than the resisting force is transmitted from the second box element to the first box element via the engaging means. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
