| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a connection structure that is superior in operability of construction and removal and imparts movability in three-axial directions to a connection part with respect to a base block of a boundary wall. <P>SOLUTION: One side (projection connection end) of an end part includes a perpendicular semicylindrical projection part, shoulder faces on both sides in a width direction thereof, and a cut of a height intermediate part, and has a bolt insertion hole in a shaft center of the semicylindrical projection part above the cut and an insert nut below the cut. The other side (recessed connection end) of the end part includes a perpendicular semicylindrical recessed part, contact faces on both sides in the width direction thereof, and a hook facing the cut. While the hook is inserted into the cut, the semicylindrical projection part is inserted into the semicylindrical recessed part and a bolt inserted into the bolt insertion hole is threadably engaged with the insert nut while penetrating the hook, thereby making a connection. <P>COPYRIGHT: (C)2013,JPO&INPIT |
