Back to results
US 6,400,048 B1Granted
Rotary brush device and vacuum cleaner using the same
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHiroshi Nishimura, Seizo Hayashi
Life of this patent
Estimating the term…
Abstract
A motor is incorporated in a cylindrical body which is a rotary brush. Rotation of a rotor of the motor, directly or via a speed reduction mechanism, drives the rotary brush. Cooling air runs through the cylindrical body so that the motor is cooled and protected. The rotary brush and an electric apparatus using the rotary brush can be downsized and easily.
Claims51
A rotary brush device comprising:
- a cylindrical body having two ends, at least one of a brush agitator, a thin-plate agitator and a thin-plate scraper;
- a motor disposed in said cylindrical body and for rotating said cylindrical body;
- a speed reduction mechanism for reducing rotational speed of said motor;
- wherein said motor is disposed on a first end of said cylindrical body and said speed reduction mechanism is disposed on a second end of said cylindrical body;
- and
- an electric blower disposed outside of the cylindrical body for drawing air into said cylindrical body for cooling said motor.
3 more elements
A rotary brush device comprising:
- a sucking means, a cylindrical body with a motor housed in the cylindrical body, an outer wall of the cylindrical body having two ends is provided with at least one of a brush, a thin-plate agitator, and a thin-plate scraper, the cylindrical body is provided at one end with a first opening for receiving outside air and a second opening at an opposite side of the cylindrical body, said second opening is provided near where sucking power from the outside of said cylindrical body is exerted in order to flow the outside air from said first opening to said second opening through the inside of said motor, and a partition protrusively surrounding both ends of said cylindrical body.
An electric apparatus comprising:
- a sucking means, at least one rotary brush device, said rotary brush device having a cylindrical body having two ends, with a motor housed in the cylindrical body, an outer wall of the cylindrical body is provided with at least one of a brush, a thin-plate agitator, and a thin-plate scraper, the cylindrical body is provided at one end with a first opening for receiving outside air and a second opening at an opposite side of the cylindrical body, said first opening and said second opening being connected to one another through the inside of the motor, wherein said second opening is affected by an electric blower disposed outside of the cylindrical body for sucking air therein for cooling said motor.
An electric apparatus comprising:
- an electric blower for air intake, a floor nozzle provided with a downwardly facing opening, said floor nozzle having an intake chamber connected with said electric blower, arotary brush having a cylindrical body with a motor housed in the cylindrical body, an outer wall of the cylindrical body is provided with at least one of a brush, a thin-plate agitator, and a thin-plate scraper, the cylindrical body is provided at one end with a first opening for receiving outside air and a second opening at an opposite side of the cylindrical body, said first opening and said second opening being connected to one another through the inside of the motor;
- said rotary brush disposed in the intake chamber, said first and second openings separated from the intake chamber, and an outside-air intake provided on an outer face of said apparatus and connecting with the first opening.
An electric apparatus comprising:
- an electric blower for air intake, a dust chamber for capturing dust, a floor nozzle provided with an intake chamber having a downwardly facing opening, an intake mouth provided at a wall of said intake chamber and connected by a hose with said electric blower, and a rotary brush device having a cylindrical body, with a motor housed in the cylindrical body, an outer wall of the cylindrical body is provided with at least one of a brush, a thin-plate agitator, and a thin-plate scraper, the cylindrical body is provided at one end with a first opening for receiving outside air and a second opening at an opposite side of the cylindrical body, said first opening and said second opening being connected to one another through the inside of the motor and disposed in said intake chamber;
- wherein an outside-air intake connected with said first opening is provided at a top part of said floor nozzle, and said intake is disposed on a same side as said first opening in a longitudinal direction of said floor nozzle.
An electric apparatus comprising:
- at least one rotary brush device having a cylindrical body having two ends, at least one of a brush agitator, a thin-plate agitator and a thin-plate scraper;
- a motor disposed in said cylindrical body and for rotating said cylindrical body;
- a speed reduction mechanism for reducing rotational speed of said motor;
- wherein said motor is disposed on a first end of said cylindrical body and said speed reduction mechanism is disposed on a second end of said cylindrical body;
- and
- wherein outside-air is drawn into said cylindrical body by an electric blower disposed outside of said cylindrical body for sucking air therein for cooling said motor.
3 more elements
An electric apparatus comprising:
- a floor nozzle having an intake chamber connected with an electric blower, and the floor nozzle is provided with a downward facing opening, wherein the intake chamber is provided with a rotary brush device having a cylindrical body having two ends, at least one of a brush agitator, a thin-plate agitator and a thin-plate scraper;
- a motor disposed in said cylindrical body and for rotating said cylindrical body;
- a speed reduction mechanism for reducing rotational speed of said motor;
- wherein said motor is disposed on a first end of said cylindrical body and said speed reduction mechanism is disposed on a second end of said cylindrical body;
- and
- wherein outside-air is drawn into said cylindrical body by an electric blower disposed outside said cylindrical body for sucking air therein for cooling said motor.
3 more elements
An electric apparatus comprising:
- a floor nozzle which incorporates a rotary brush device having a cylindrical body having two ends, at least one of a brush agitator, a thin-plate agitator and a thin-plate scraper;
- a motor disposed in said cylindrical body and for rotating said cylindrical body;
- a speed reduction mechanism for reducing rotational speed of said motor;
- wherein said motor is disposed on a first end of said cylindrical body and said speed reduction mechanism is disposed on a second end of said cylindrical body;
- and has an intake chamber with a downwardly facing opening, an electric blower for air intake, a dust chamber for capturing dust, and a handle tiltably attached to said floor nozzle;
- wherein rotation of the cylindrical body of said rotary brush device is halted when said handle is positioned substantially upright;
- and
- wherein outside-air is drawn into said cylindrical body by an electric motor disposed outside of said cylindrical body for sucking air therein for cooling said motor.
5 more elements
A rotary brush device comprising:
- a housing;
- a cylindrical body having first and second ends and at least one of a brush agitator, a thin-plate agitator and a thin-plate scraper, said cylindrical body disposed in said housing;
- a motor disposed in and at said first end of said cylindrical body and for rotating said cylindrical body;
- a speed reduction mechanism for reducing rotational speed of said motor and disposed at said second end of said cylindrical body;
- a partition extending in said housing and having a communication opening therein;
- and
- an electric blower disposed outside of said cylindrical body for drawing air into said cylindrical body through said communication opening of said partition for cooling said motor.
4 more elements
Dependencies are inferred from the claim text.