Self-propelled vacuum cleaner
First Claim
1. A self-propelled vacuum cleaner, comprising:
- a pair of side brushes for directing dust on a floor surface toward an inside of a bottom of a main body of the cleaner, the side brushes including a right side brush that rotates in a counterclockwise direction, as viewed from top, on a rotary shaft and a left side brush that rotates in a clockwise direction, as viewed from top, on a rotary shaft, wherein the rotary shaft of the right side brush is angled with respect to a vertical axis of the main body so that a lower end of the rotary shaft is located toward the right of and the rear of the main body as compared with an upper end of the rotary shaft, and wherein the rotary shaft of the left side brush is angled with respect to the vertical axis of the main body so that a lower end of the rotary shaft is located toward the left of and the rear of the main body as compared with an upper end of the rotary shaft.
1 Assignment
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Accused Products
Abstract
A self-propelled vacuum cleaner having right and left side brushes for directing dust on a floor surface toward the inside of the bottom of the cleaner body. The right side brush rotates in a counterclockwise direction as viewed from top on a rotary shaft, which is tilted so that the lower end is located toward the right of and the rear of the cleaner body as compared with the upper end. The left side brush rotates in a clockwise direction as viewed from top on a rotary shaft, which is tilted so that the lower end is located toward the left of and the rear of the cleaner body as compared with the upper end. The tilted rotary shafts can prevent the outer portions of the side brushes at their rear portions from contacting a floor surface, thereby preventing dust collected by the front portions of the side brushes from being scattered to the outside of the cleaner body by the rear portions of the brushes.
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Citations
4 Claims
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1. A self-propelled vacuum cleaner, comprising:
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a pair of side brushes for directing dust on a floor surface toward an inside of a bottom of a main body of the cleaner, the side brushes including a right side brush that rotates in a counterclockwise direction, as viewed from top, on a rotary shaft and a left side brush that rotates in a clockwise direction, as viewed from top, on a rotary shaft, wherein the rotary shaft of the right side brush is angled with respect to a vertical axis of the main body so that a lower end of the rotary shaft is located toward the right of and the rear of the main body as compared with an upper end of the rotary shaft, and wherein the rotary shaft of the left side brush is angled with respect to the vertical axis of the main body so that a lower end of the rotary shaft is located toward the left of and the rear of the main body as compared with an upper end of the rotary shaft. - View Dependent Claims (2, 3, 4)
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Specification