JPH0595866A - Rotary brush of floor nozzle - Google Patents

Abstract

PURPOSE:To provide a rotary brush to be mounted on a floor nozzle, with which thread entanglement on the rotary brush is precluded. CONSTITUTION:Flexible tubes 2 are put over while the bristle tips of an implanted brush 3 are left. Accordingly thread waste is hindered from intruding to the part back more than the brush 3 by these tubes 2, and entanglement on the brush 3 is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary brush for a floor nozzle of an electric vacuum cleaner having a thread winding preventing function.

[0002]

2. Description of the Related Art Conventional rotary brushes for floor nozzles of electric vacuum cleaners are mainly of flocked type. However, there is a problem of thread winding. A type in which a continuous flexible blade is provided in the longitudinal direction and several protrusions are provided near the blade has been developed.

[0003]

The rotary brush of the type having such a blade, however, has the following problems.

(1) The projections provided near the blade are worn by friction with the carpet, and the dust collecting performance is deteriorated.

(2) Compared to the flocked type, the blade type has a poor dust collecting performance and the load of the rotary brush is large. Therefore, the electric power of the electric motor for driving the rotary brush also becomes large. Therefore, it is particularly disadvantageous to a rechargeable vacuum cleaner having a limited use time.

An object of the present invention is to provide a rotary brush of a floor nozzle which is a type of flocked type and has a difficulty in winding a yarn without impairing the dust collecting performance.

[0007]

In order to solve the above-mentioned problems, the present invention is, as a first means, a structure in which a flexible tube is covered on the flocked brush while leaving the bristle tips of the flocked brush. is there.

As a second means, a flexible plate is provided immediately before the flocked brush or between the brushes.

As a third means, a fan is provided in the rotary brush, intake holes are provided on both sides of the rotary brush, and exhaust holes are provided in the outer circumference of the rotary brush.

[0010]

According to the present invention, in the case of the first means and the second means, the flexible tube or the flexible plate makes it difficult for thread dust or the like to enter from the tip of the bristle brush to prevent the winding. It will be.

In the case of the third means, when the rotating brush and the built-in fan are connected and rotate, air is sucked in from both sides of the rotating brush and is discharged to the outer peripheral direction of the rotating brush, so that thread dust or the like is generated. It will prevent wrapping.

[0012]

EXAMPLES Examples of the present invention will be described below.

FIG. 1 shows a first embodiment, in which a rotary brush 1 of a floor nozzle has a bristle-implanting brush 3 on its outer periphery, and a flexible tube 2 is covered with only the bristle tips of this bristle-implanting brush 3 left. There is.

FIG. 2 shows a second embodiment, in which a flexible plate 4 slightly shorter than the bristle tips of the flocking brush 3 is used.
It is provided just before.

FIG. 3 shows a third embodiment, in which a fan 5 is provided in the rotary brush 1, intake holes 6 are provided on both sides of the rotary brush 1, and exhaust holes 7 are provided in the outer circumference. ing.

According to the configurations of the first means and the second means, the flexible tube 2 or the flexible plate 4 makes it difficult for thread dust or the like to enter the depths of the bristle tips of the flocked brush 3, and thus the thread winding. It is possible to prevent sticking.

According to the structure of the third means, the rotating brush 1
With the built-in fan 5 connected and rotating,
The air sucked from the intake holes 6 on both sides of the rotary brush 1 causes an air flow from the exhaust hole 7 in the outer peripheral direction of the rotary brush 1, and the dust is blown off by the air flow from the exhaust hole 7 to prevent thread winding. You can This structure is more effective when combined with the structure of the first means and the second means.

[0018]

As is clear from the above embodiments, the present invention has a simple structure in which the bristle-implanting brush is covered with the flexible tube while leaving the bristle tips, or a flexible plate shorter than the bristle-implanting is provided. Since the air is blown out by the built-in fan, the difficulty in winding the thread is improved without reducing the dust collection performance of the conventional flocking type rotary brush and increasing the load of the rotary brush. It provides a floor nozzle for a machine.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a rotary brush according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of a rotating brush according to a second embodiment of the present invention.

FIG. 3 is a vertical sectional view of a rotating brush according to a third embodiment of the present invention.

[Explanation of symbols]

 1 rotating brush 2 flexible tube 3 flocking brush

Claims (3)

[Claims] 1. A rotary brush for a floor nozzle, comprising a flexible tube covered with a flexible tube while leaving the tips of the flocked brush. 2. A rotary brush for a floor nozzle, comprising a flexible plate immediately before and after the flocked brush or between the flocked brushes. 3. A rotary brush for a floor nozzle, wherein a fan is provided in the rotary brush, intake holes are provided on both sides of the rotary brush, and exhaust holes are provided on the outer circumference of the rotary brush.