| 摘要 |
PROBLEM TO BE SOLVED: To provide a mesh-roughener device capable of forming a plurality of mesh-rougheners of a predetermined depth of extending toward the inside from a surface of a structure with one-time operation.SOLUTION: A mesh-roughener device 10A exposes a tip part 54 of mesh-roughener bits 13 to the front from a front end opening 32 surrounded with the front edges of first-fourth sidewalls 16, 17 and 19 of a housing 11, and the mesh-roughener bits 13 rotate together with a driven shaft 51 in response to rotation of a driving shaft 47 of an electric drill 12. In the mesh-roughener device 10A, the mesh-roughener bits 13 are pressed to a surface of a structure together with the housing 11, and the structure is cut toward the inside from a surface thereof by the mesh-roughener bits 13, so that a plurality of mesh-rougheners are formed in the structure with one-time operation.SELECTED DRAWING: Figure 4 |
