| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure for a multiple grinding wheel capable of performing reciprocating grinding work, a reciprocating grinding method using the multiple grinding wheel, and a processing device for grinding four sides of a rectangular plate member. SOLUTION: In this multiple grinding wheel, a plurality of single grinding wheel plates are disposed in parallel at prescribed intervals, and a subject plate member is relatively moved to slide roughly in parallel to the rotation axis direction of the multiple grinding wheel to be provided in order for the grinding work. The outer diameter size of a single grinding wheel plate 42 on the center side is set to be larger than the outer diameter size of the single grinding wheel plates 41 and 43 disposed on the right and left of it, so that a ground surface formed when the subject plate member 7 is relatively moved forward and a ground surface formed when the subject plate member is relatively moved backward are respectively formed. COPYRIGHT: (C)2003,JPO
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