| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a flexible duct extension tool that allows a person to easily and properly extend a flexible duct to a predetermined length alone. <P>SOLUTION: An end section of the flexible duct is firmly fastened or held by a releasable fastening tool. A pedestal is disposed at a joint part. A rotary handle is joined thereto, and fixed to a firm pole or a foothold. Another end of the flexible duct is held by a hand, or a fastening tool is fastened at the other end and extended by the hand, thereby extending the flexible duct to a predetermined length. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
