Rotating polishing tool
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United States of America Patent
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Mar 2, 2010
Grant Date -
Jul 3, 2008
app pub date -
Jul 5, 2004
filing date -
Jul 5, 2004
priority date (Note) -
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Abstract
The present invention has an object to provide a rotating polishing tool with high durability that can finish a polished surface with desired surface roughness. As means thereof, a substantially cylindrical polishing member 3 is constituted by a pair of polishing units 9 at opposite ends, and an intermediate portion 10 provided between the pair of polishing units 9. The polishing member 3 is rotatably supported around the central axis thereof, and polishes a polished surface with a peripheral surface thereof. The polishing unit 9 includes a plurality of abrasive cloth/paper sheets 7 pressingly held by an inner metal fitting 8, and forms peripheral edges of the abrasive cloth/paper sheets 7 into a serpentine shape. The intermediate portion 10 includes a plurality of laminated abrasive cloth/paper sheets 7 axially pressingly held by the polishing units 9. The intermediate portion 10 is caused to fit along the polishing units 9 to form the peripheral edge of each abrasive cloth/paper sheet 7 into a serpentine shape. No clearance is created between the abrasive cloth/paper sheets 7, thereby stabilizing surface roughness of the polished surface and increasing durability of the polishing member 3.
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