JPS63194621A - Floor nozzle 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 the Invention The present invention relates to a floor nozzle for a vacuum cleaner having a rotating brush with bristles embedded therein.

2. Description of the Related Art Conventionally, in the floor nozzle of this type of vacuum cleaner, as shown in FIG. The rotary brush 1 has a belt 18 for transmitting power to the
Brush bristles 21 are not planted in the part of the pulley 20 on which the belt 19 of No. 7 is applied.

Problems to be Solved by the Invention In the above configuration, since the brush bristles 21 cannot be planted in the pulley 20 portion of the rotating brush 17, the surface to be cleaned in this portion cannot be brushed up with the brush bristles.

In a normal vacuum cleaner, the bell 19 and pulley 20 are located at the end of the rotating brush 17, so the side end of the floor nozzle cannot be scraped up by the brush.

Therefore, when cleaning the edges of walls, dust remains at the corners, and the dust must be cleaned again using a gap opening nozzle.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a floor nozzle that can sweep up corners of rooms or walls with its bristles.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention forms a suction chamber with an air intake opening in the floor nozzle body, a rotary brush rotatably supported in the suction chamber, and a rotating brush that is rotatably supported in the suction chamber. A brush driving source,
a transmission means for transmitting the rotation of the drive source to the rotary brush, a small brush is provided close to the side end of the rotary brush and pivotally supported in a direction perpendicular to the axis of the rotary brush, and a small brush is provided at the base of the small brush. The formed cam surface and the protrusions provided at the side ends of the rotary brush repeatedly engage and recur as the rotary brush rotates, thereby changing the rotation of the rotary brush into rocking around the axis of the small brush. Thus, a floor nozzle for a vacuum cleaner was created in which a small brush oscillated on the bottom surface of the side end of the floor nozzle.

According to the above-mentioned structure, the small brush swings about the shaft as a fulcrum through the cam surface provided at the base of the small brush as the rotary brush rotates, even on the bottom surface of the side end of the floor nozzle. The bottom surface of the nozzle side end is scraped up by the brush, and surfaces to be cleaned such as the interior of the room and the corners of walls can be cleaned, and walls and the like can also be reliably cleaned.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 3, l is a floor nozzle main body, and a suction chamber 3 with an inlet port 2 opened at the bottom thereof is formed, and the suction chamber 3 communicates with a connecting pipe 4.

5 is a rotating brush, which is rotatably supported in the suction chamber 3;
Brush bristles 6 are planted on the outer periphery. Reference numeral 7 denotes a motor as a driving source, which rotates the rotating brush 5, and its rotation is transmitted to the rotating brush 5 by a belt 9 stretched between the pulley 8 of the rotating brush 5 and the motor 7.

The axis lO of the rotating brush 5 is supported pivotally on both side walls of the suction chamber 3, but on the side wall 11 on the side of the pulley 8, there is a groove located near the end of the rotating brush in a direction orthogonal to the axis lO of the rotating brush 5. A small brush 12 is provided which is rotatably supported.

A protrusion 1 is provided on the pulley 8 at a position facing the small brush 12.
3 is provided, and a cam surface formed at the base of the small brush 12! 4, the rotation of the rotating brush 5 is changed into the swinging of the small brush 12. A shaft 15 supports the small brush 12 so as to be swingable in a direction orthogonal to the rotating brush 5. 1B is a retaining ring and rotating brush 5
It is loosely inserted into the shaft 10 of.

11a is a small brush window provided on the bottom wall. Further, the E side of the small brush 12 communicates with the upper part of the rotating brush 5, and communicates with the connecting pipe 4 from the intake port 2.

In the configuration described above, the pulley 8 rotates and the rotating brush 5
When driven, the protrusion 13 comes into contact with and separates from the cam surface 14 formed at the base of the small brush 12, causing the shaft 1 to move.
The small brush 12 swings while being reversed about 5, and the small brush protruding from the window 16 can scrub the surface to be cleaned.

The dust scraped up in this area joins the dust of the rotating brush and is sucked into the vacuum cleaner body through the suction port 2, the suction chamber 3, and the connecting pipe 4 due to the suction force.

In this way, by providing the small brush 12 on the side wall 11, it is possible to reliably scrape up dust even at the floor nozzle side end as the brush rotates once, and it is also possible to clean corners such as walls. can.

Effects of the Invention In the present invention, a rotary brush is rotatably provided on the floor nozzle body, and a small brush that responds to the rotation of the rotary brush is provided at the side end. Even at the edges, dust can be scraped up by swinging around the axis of the small brush, which joins together with the dust scraped up by the rotating brush, passes through the connecting pipe, and is sucked into the vacuum cleaner body, making it easy to clean around walls, etc. Corners can now be cleaned reliably.

In this way, since the walls can be cleaned with one floor nozzle, there is no need to use a separate crevice nozzle for wall cleaning as in the past, and the cleaning can be done reliably with less effort.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing one embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of the front part, Fig. 3 is a perspective view of the main part, and Fig. 4 is a cross-sectional view of the conventional example. be.

Claims (1)

[Claims] (1) A suction chamber with an inlet opening is formed in the floor nozzle body, a rotating brush is rotatably supported in the suction chamber, a drive source for this rotating brush, and the rotation of this drive source is transmitted to the rotating brush. A small brush is provided near the side end of the rotating brush and is pivotally supported in a direction perpendicular to the axis of the rotating brush, and a cam surface formed at the base of the small brush and a side of the rotating brush are provided. The protrusion provided at the end repeats contact and separation with the rotation of the rotating brush, thereby changing the rotation of the rotating brush into a swinging movement about the axis of the small brush, and the small brush is attached to the bottom surface of the side end of the floor nozzle. A floor nozzle for a vacuum cleaner, characterized in that the floor nozzle is made to oscillate.