| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a weep hole which facilitates installation of the weep hole to an existing structure. <P>SOLUTION: A weep hole includes a guide pipe to be placed in a back filling material of an existing structure, an outer pipe, and a main body pipe whose whole body to be accommodated inside the outer pipe. The guide pipe is formed with a tubular member whose base end is opened and leading end is conically shaped or polygonal pyramid shaped. The outer pipe includes a water collecting pipe which is formed with a tubular member whose open base end is provided with a flange and leading end is closed, and an inside-wall pipe whose both ends are opened and which is connected with the water collecting pipe by a flange provided to a leading end facing against the base end of the water collecting pipe being made into contact with the flange of the water collecting pipe and fastened together with the water collecting pipe. The water collecting pipe is accommodated inside the guide pipe, the main body pipe is formed with a tubular member whose base end is opened and leading end is closed, and a plurality of drain openings is provided to a front half part of the guide pipe, water collecting pipe of the outer pipe, and a portion of the main body pipe which is positioned inside the water collecting pipe. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
