JPS6198231A - Suction port with rotary brush of electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a suction port with a rotary brush for vacuum cleaners including applied types, and particularly to a suction port suitable for preventing dust from entering a rotary brush bearing.

[Background of the invention]

In conventional rotary brush suction ports, the bearing itself has a sealing structure to prevent dust from entering the rotary brush bearing, so the m-receiving part has many parts and is expensive, and at the same time, it is not possible to completely prevent dust from entering. Since this is impossible, there is a drawback that if dust should intrude into the bearing part, it would be extremely difficult to remove the dust. On the other hand, as disclosed in Japanese Utility Model Application Publication No. 50-147458, there is a rotating body configured to rotate at the same time as the rotary brush on the shaft of the rotary brush, but there is a rotary body that is fixed to the rotary brush. As shown in Figure 4, the rotating body 2
0 is located on the side end face of the rotary brush 21, and as shown in an enlarged view in FIG. needs to be processed into a tapered shape, and it becomes impossible to provide a brush brush in the section indicated by symbol a, which is the section already indicated by symbol a plus the width of the rotating body 20. For this reason, there was a problem in that the dust scraping effect by the brush in the section indicated by symbol a was lost, and the cleaning performance was poor. In addition, in recent years with a rotary brush suction port as shown in FIG. 6 using an air turbine as a driving source, the air turbine 22 is rotated by the suction airflow of the cleaner body 23, so the amount of dust collected by the cleaner body 23 is smaller. As the amount increases, the air volume of the suction airflow decreases. For this reason.

The rotation speed of the rotary brush 21 decreases, and at this time, lint and the like get tangled with the rotating body, and cotton layers etc.
There have been problems such as the rotation of the rotary brush 21 being locked due to adhesion to the rotary brush 21, the original function and effect of the rotary body being lost, and furthermore, dust entering the rotary brush bearing.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a suction port with a rotary brush that can prevent dust from entering the rotary brush bearing with an extremely simple structure without degrading cleaning performance and is economically safe.

[Summary of the invention]

The present invention is designed to prevent dust from entering the rotary valve bearing.
In order to create a flow, wing-shaped protrusions are provided on the outer periphery near the rotary brush bearing, either integrally with the rotary brush material or separately, and the height of the wing-shaped protrusions is lower than the height of the brush brush.

[Embodiments of the invention]

Hereinafter, the present invention will be explained in detail with reference to Examples.

FIGS. 1 and 2 are diagrams showing one embodiment of the present invention, and the structure of a suction port with a rotary brush.

As shown in FIG. 3, the main body case 24 and the base cover 25
and a joint 26, and has an electric motor 27 inside, and uses this electric motor 27 as a driving source to rotate the rotary brush 21 via a belt 28, and as shown in FIG. 6, an upper case 29 and a lower case. 30 and bent joint 31
There is an air turbine type in which a rotary brush 21 is rotated via a belt 32 using an air turbine 22 inside which is rotated by a suction airflow as a driving source. moreover,
This vacuum cleaner is called an applied type, and has a suction port (not shown) for carpets that is driven by an electric blower in the main body. Each of these has a rotary brush 21, both ends of which are supported by bearings 13 as shown in the embodiment of FIG. Several wing-shaped protrusions 14 are formed integrally with the rotary brush 21, and the height of the wing-shaped protrusions 14 is lower than the height of the brush brush 15 which is helically planted on the rotary brush 21.

According to this configuration, by rotating the rotary brush 21 with the electric motor 27 and the air turbine 22,
Due to the scraping effect of the brush brush 15, the sucked dust is sucked into the vacuum cleaner body while scraping out the dust on the carpet. At the same time, when the rotary brush 21 rotates, the wing-shaped protrusions 14 rotate, thereby generating an airflow from the bearing 13 toward the center of the suction port in the direction of the arrow in the figure, as shown in the enlarged view of FIG.

That is, according to this embodiment, the wing-shaped projection 14 is integrally provided on the outer circumferential surface of the rotary brush 21, which is an extremely simple structure, and the generation of airflow due to the rotation of the projection 14 prevents dust from entering the bearing 13. It has the great effect of preventing

Furthermore, since the height of the wing-shaped protrusions 14 is formed lower than the height of the brush brush 15, the brush brush can be planted on the same circumference where the wing-shaped protrusions 14 are provided, and furthermore, the brush brush can be placed close to the bearing 13. can be transplanted. Therefore, there is an extremely effective effect that the bristle-filled section of the brush brush 15 for preventing dust intrusion is not reduced, that is, the cleaning performance is not degraded. Furthermore, the wing-shaped projection 14
The brush brush 15 can be formed near the wing-shaped protrusion 14 to prevent dust, especially lint, from getting entangled with the rotary brush 7. This has the great effect of preventing locking.

〔Effect of the invention〕

As is clear from the above description, the present invention has an extremely simple structure in which wing-shaped protrusions are provided on the outer periphery of the rotary brush near the bearing, and the generation of airflow by the rotation of the protrusions is used to remove dust from the bearing portion. This has the great effect of preventing the intrusion of the rotary brush and preventing the rotary brush from locking.

In addition, the brush brush can be planted close to the wing-shaped protrusions, and the height of the wing-shaped protrusions is lower than that of the brush brush, so the wing-shaped protrusions do not reduce the cleaning action of the brush brush. This has the effect that there is no deterioration in cleaning performance. Furthermore, there is a great effect that dust such as lint is covered by the nearby brush brush, so the dust does not get entangled with the wing-shaped protrusions, and the low-free brush is not locked.

[Brief explanation of drawings]

Fig. 1 is a plan view of an embodiment of the present invention with the upper case of a rotary brush suction mouth removed, Fig. 2 is an enlarged view of part A in Fig. 1, and Fig. 3 is a rotary brush with an electric motor as a power source. Fig. 4 is a quotation of the conventional example; Fig. 5 is an enlarged view of part B in Fig. 4; Fig. 6 is a side view of a rotary brushed suction port with an air turbine as the drive source. 613 which is a side view...Bearing, 1
4... Wing-shaped projection, 15... Brassica 81 Figure 2 View 3

Claims (1)

[Claims] 1. In a suction mouth with a rotary brush used in combination with a vacuum cleaner, a wing-shaped protrusion is provided on the outer periphery near the bearing of the rotary brush, either integrally with the rotary brush material or separately, and the height of the wing-shaped protrusion is adjusted to the height of the brush brush. A vacuum cleaner mouthpiece with a rotary brush, characterized by being lower than its height.