DEVICE FOR DETACHING/ATTACHING HAND GRINDER POLISHING DISK

WIPO Patent Application WO/2016/085052

A1

The present invention relates to a device for detaching/attaching a hand grinder polishing disk, the device being clamped on the rotating shaft of a grinder main body so as to enable the easier and quicker detachment/attachment of a consumable polishing disk used for finishing, cutting, severing, etc. the surface of a target object, or to enable the definite prevention of loosening, vibration phenomenon, etc. The present invention comprises: a grinder main body which has a rotating shaft operating at a high speed by means of air pressure or the driving of an electric motor; a power transmission member which has a stopping protrusion formed on the upper end part of the body thereof and a hexagonal body including a flange formed on the center part of the body thereof, and which is clamped on the rotating shaft of the grinder main body by a fixing bolt; a stopper main body which has a hexagonal hole formed on the inner circumferential surface thereof for accommodating the power transmission member, and which has an arc-shaped seat groove formed on the circumference of the hexagonal hole so as to face each other; a pair of upper and lower rotating plates which are each fitted in a flat plate portion on the upper end of the stopper main body; and a disk holder which has an upper fixing ring and a lower support plate assembled on the power transmission member for fixing an abrasive material.

KIM CHANG-SEONG (KR)
KIM KYUNG-JIN (KR)

PCT/KR2015/002507

June 02, 2016

March 16, 2015

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KIM CHANG-SEONG (KR)
KIM KYUNG-JIN (KR)

B24B45/00

JP2012218151A	2012-11-12
KR20090074461A	2009-07-07
KR20100008489A	2010-01-26

See also references of EP 3109001A4

CHO, Yong-Shik (KR)
조용식 (KR)

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