| 摘要 |
[Object] The present invention provides a surface grinding device of a pavement surface in which driving energy is small, the device can be used for long periods of time, and it is possible to smoothly grind a surface of the pavement surface without damaging the pavement surface. [Solving Means] A grinding body (6) of a surface grinding device (1) of a pavement surface is composed of a rotation shaft (13) and several blades (14). Each of the blades (14) includes a substantially rectangular plate (15) having a predetermined thickness, and arc grinding pieces (16) provided on edges of both short sides of the plate (15). A shaft hole (18) is formed in a center of the plate (15), and the rotation shaft (13) is inserted into the shaft hole (18). In the grinding body (6), the plurality of blades (14) are deviated from and overlap with one another in a rotation direction of the grinding body (6) so that the grinding pieces (16) do not interfere with each other. The grinding piece (16) is thicker than a thickness of the plate (15). When the grinding body (6) rotates and grinds a surface of the pavement surface, widths of the surface grinded by the grinding pieces (16) of the adjacent blades (14) overlap with each other by a predetermined overlap space (26) . |
