Cleaning apparatus

摘要

A cleaning apparatus including a brush to sweep up dust on the floor via rotation thereof, and an elevating device to vertically adjust a height of the brush. The elevating device includes an elevating motor to generate rotation force, a cam configured to be rotated by the elevating motor and serving to vertically move the brush, and a rotation switch configured to rotate in a given direction along with the cam and serving to sense a position of the brush. The cleaning apparatus is structurally simplified as a resulting of using an Alternating Current (AC) motor as the elevating motor.

主权项

1. A cleaning apparatus comprising:
a brush to sweep up dust on a floor via rotation thereof; and an elevating device to vertically adjust a height of the brush, wherein the elevating device comprises an elevating motor in the form of an Alternating Current (AC) motor to generate rotation force in a given direction, a cam configured to be rotated by the elevating motor and to vertically move the brush, and a rotation switch configured to be rotated by the cam and to sense a position of the brush, and wherein the rotation switch includes a connecting shaft connected to the cam, and a variable resistor configured to be rotated by the connecting shaft to vary output voltage based on a rotation angle thereof.