Patent ID: 9333616
Filing Date: 2016-05-10
CPC Classification: B24B,B24D

Claim Text:
1. A self-leveling sandpaper grinding machine comprising: a base part including a seat having a first side, a second side and a middle portion, a motor frame fixed in the middle portion on a first side of the seat, a motor supported on the motor frame, a decelerator connected to an output shaft of the motor wherein an output shaft of the decelerator penetrates the first side of the seat and extends to the second side of the seat; and a grinder part removably attached to the second side of the seat and being opposite to the motor being supported on the motor frame on the first side of the seat, said grinder part including a tray, four barrier strips provided on the tray and substantively forming a quadrangle, U-shaped clip seats provided along diagonals of the quadrangle, elastic pads inserted into sockets formed by the barrier strips and U-shaped clip seats wherein a height of each elastic pad is slightly higher relative to a height of each barrier strip or U-shaped clip seat, sandpaper placed on the elastic pads, U-shaped clips engaging with the U-shaped clip seats and fastening the sandpaper together with the U-shaped clip seats to the grinder part, and a transmission mechanism provided on the tray for coupling with the output shaft of the decelerator.