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Patent Searching and Data


Title:
BARREL POLISHING DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/203131
Kind Code:
A1
Abstract:
A barrel polishing device according to an aspect is provided with a fixed tank that divides a polishing space and a rotary disk. The fixed tank has a predetermined axial line as the center axis line thereof. The fixed tank has a cylindrical rigid body and a first lining that covers the inner peripheral surface of the cylindrical rigid body. The rotary disk has a disk-like rigid body and a second lining that covers a polishing space-side surface of the disk-like rigid body, and is rotatably disposed in a state in which a gap is formed between the first lining and the second lining. In the disk-like rigid body, a protrusion section protruding to the polishing space side in a predetermined axial line direction is formed. The length of a portion, of the protrusion section, overlapping the gap in the predetermined axial line direction is no less than 1/3 of the length of the gap in the predetermined axial line direction.

Inventors:
NISHIJIMA HITOSHI (JP)
Application Number:
PCT/JP2020/010646
Publication Date:
October 08, 2020
Filing Date:
March 11, 2020
Export Citation:
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Assignee:
SINTOKOGIO LTD (JP)
International Classes:
B24B31/108
Foreign References:
JPH0538670A1993-02-19
JP2001088006A2001-04-03
JPH10277917A1998-10-20
JP3163812U2010-11-04
JPH02502088A1990-07-12
JPS513494A1976-01-12
US4958776A1990-09-25
JPH09225808A1997-09-02
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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