| 摘要 |
PROBLEM TO BE SOLVED: To provide a concrete groove forming device that has the properties: having a construction of simple, small, and cheap cost; easily being handled; capable of being used in narrow space for operation; capable of accurately forming grooves on the surface of an existing concrete column without any skills. ! SOLUTION: The present invention is a concrete groove forming device 100 for forming grooves on the side surface of an existing concrete column (concrete structure) A. The concrete groove forming device 100 comprises: an electric cutter 110; a slider 120 supporting the electric cutter 110; a pair of guide devices 130 which are arranged on the side surface and the opposite side surface of the existing concrete column A, and movably supports the slider 120 to guide movement; and a stretching frame 140 arranged between the pair of guide devices 130 in a stretchable manner. ! COPYRIGHT: (C)2015,JPO&INPIT |
