| 摘要 |
PURPOSE: A multifunctional polishing machine is provided to smoothly remove foreign materials through a dust collecting port by allowing foreign materials rotating along with air flow to stay above a housing. CONSTITUTION: A multifunctional polishing machine comprises a housing(100), a rotary disk(200), a polishing pad(300), an electric device(400), wheels(500), a steering wheel, and a dust collecting device. The rotary disk has a center coupling hole(210) vertically bored to receive a rotating shaft(410) of the electric device, including coupling projections(420). One or more holding protrusions(220) are formed on the inner surface of the coupling hole and an inclined guide surface is formed on one side of the lower part of the holding protrusions to guide the coupling projection being rotated. A stopper is formed on the other side of the lower part of the holding protrusions to stop the rotation of the coupling projection. |
