| 摘要 |
A cutting wheel is provided to move the centroid to one side through a simple operation by changing a shape of a wheel holder. A cutting wheel(110) comprises a wheel(120), a fixed bar(140), an insertion part(132), a wheel holder(130), and a first fixing unit(170). The circumference of the wheel has a saw-tooth shape(122). The fixed bar has a groove in its bottom, and includes first and second holes which are symmetrically formed in correspondence with both sides of the groove. The wheel holder and the first fixing unit are inserted into the groove. The insertion part has first and fourth holes symmetrically. A body has a width bigger than the insertion part and has a symmetrical structure based on the wheel. If an upper surface of the body of the wheel holder is closely contacted with one side bottom of the fixed bar of a slant line type, the first hole and the third hole are consistent with each other. |
