JPS6152685B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electric floor brush that is small and compact and has improved operability.

In the case of conventional electric floor brushes, a rotating brush and a driving electric motor are arranged in the front and rear of the main body.
These two were connected by a belt. Therefore, the shape of the main body is flat with a large width in the front and back direction, making it similar to the size of a normal floor nozzle.
It's four times the size, and you can't make small turns, etc.
There was an operational problem.

The present invention solves the above conventional problems,
Examples thereof will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a main body whose lower opening is closed by a bottom plate 3 having a suction port 2, and a connecting pipe 4 to a suction machine is provided at the rear, and an outer rotor type electric motor 5 is built therein. That is, 6 is its armature, which is attached to a fixed shaft 7 spanning the main body 1 in the lateral direction. Reference numeral 8 denotes a flocked body constructed by implanting brush bristles 11 into a cylindrical body 10 rotatably provided on the outer periphery of the fixed shaft 7 via a ball bearing 9, and numeral 12 fixed to the inner surface of the cylindrical body 10. It's a rotor. Reference numeral 13 denotes a lead wire led out from the coil portion of the armature 6 and exits to the outside via the fixed shaft 7.

In the above configuration, when the electric motor 5 is energized now, the flocked body 8 integrated with the rotor 12 rotates.
As a result, the brush bristles 11 scrape out dust attached to the carpet.

The scraped out dust is sucked through the suction port 2 and flows from the connecting pipe 4 to the suction machine.

As explained above, since the present invention provides a flocked body on the rotor of an outer rotor type electric motor, the overall shape is much smaller than the conventional one.
This provides a compact floor nozzle, which significantly improves maneuverability and maneuverability.
Furthermore, since a transmission means such as a belt is not required, the occurrence of failures can be suppressed. Furthermore, since there is only an outer rotor type electric motor inside the main body, it is easier to balance the left and right weight compared to conventional floor nozzles, and therefore,
When using it, it is easy to operate, especially when floating above the surface to be cleaned, and the usability can be significantly improved.The suction air passage inside the main body can also be shortened, resulting in lower passage pressure loss and improved dust absorption. It has excellent effects, such as being able to improve performance.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an electric floor brush showing an embodiment of the present invention, and FIG. 2 is a longitudinal cross-sectional view thereof. 1...Body, 2...Suction port, 3...Bottom plate, 5...
...Electric motor, 8...Flocked body, 12...Rotor.

Claims (1)

[Claims] 1. An outer rotor-type electric motor is installed in the main body, which has a suction port on the bottom plate and a connection pipe to the suction machine at the rear, parallel to the above-mentioned suction port, and this outer rotor-type electric motor is fixed to the main body. It consists of an armature that uses a fixed shaft as a supporting material and has a lead wire led out of the main body through the fixed shaft, and a rotor that surrounds this armature and is provided on the inner surface of a cylindrical body that is pivotally supported by the fixed shaft. This is an electric floor nozzle in which brush bristles are implanted on the outer periphery of the cylindrical body.