Title:
BUFF GRINDER
Document Type and Number:
Japanese Patent JP2023116907
Kind Code:
A
Abstract:
To provide a buff grinder further improved in polishing force by improving a stress transmitting member.SOLUTION: A buff grinder 10 of a rotation polisher includes a surface member 4 contacting a surface to be polished, and a disc-like stress transmitting member fitted to between the surface member 4 and a fitting disc fixed to a drive shaft. The stress transmitting member is provided with a plurality of through holes in the inside away from the outer peripheral end by 3 mm or more. The plurality of through holes have a gross area of cross sections on a surface in parallel to a front surface as a fitting surface of the surface member 4, occupying a ratio of 20%-70% of the area of the front surface, are arranged so as not to form a rotation symmetry centering on a rotation center O of the stress transmitting member, and are set in a form and arrangement so that the positions of the rotation center of the stress transmitting member and a centroid G are shifted, and a distance from the rotation center O to the centroid is a length of 2%-9% of a radius of the front surface.SELECTED DRAWING: Figure 1
Inventors:
KANEKO YUKITSUGU
Application Number:
JP2022019282A
Publication Date:
August 23, 2023
Filing Date:
February 10, 2022
Export Citation:
Assignee:
KEITEKKU KK
International Classes:
B24B29/00; B24B23/00; B24B45/00
Attorney, Agent or Firm:
Yoshifumi Matsunami