| 摘要 |
<P>PROBLEM TO BE SOLVED: To facilitate repair of a side ditch, which can eliminate a poor appearance of a deteriorated top surface of a side wall, when repairing the side ditch. <P>SOLUTION: A cutter device comprises a base portion that has wheels traveling on lid receiving surfaces of top portions of both right and left side walls of a side ditch and that can move in the length direction of the side ditch between both the side walls, and a cutter with a disk blade, which is mounted on the base portion. An outer peripheral portion of the disk blade is protruded in the lateral direction of the base portion. The cutter device horizontally cuts the side wall of the side ditch along a length direction while moving the base portion in the length direction of the side ditch. The use of the cutter device enables the easy cutting of the top portion of the side wall of the side ditch, and facilitates the repair of the side ditch, which can eliminate a poor appearance of the top surface of the side wall. <P>COPYRIGHT: (C)2012,JPO&INPIT |
