JPH08196486A - Suction device for vacuum cleaner - Google Patents

Abstract

PURPOSE: To provide a suction device for a vacuum cleaner capable of securely sucking dust at a wall side, etc., by planting bristles downward, tilted outward and the tip is protruded outward from the suction device main body wall face, on both sides of the lower case tip of the bottom face. CONSTITUTION: This suction device main body 1 is formed by an upper case and a lower case 3. A suction opening 4 is constructed in front of the lower case 3 bottom of the suction device main body 1, a rotary brush 5 is constructed positioned by the suction opening 4, a motor 7 to rotate and drive the rotary brush 5 via a belt 6 in the suction opening 1, and a side groove 8 to guide suction wind to both sides of the suction opening 4 from both sides of the lower case 3. Bristles are planted downward, tilted outward and the tip is protruded outward from the suction device main body wall face, on both sides of the lower case tip of the bottom face.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a suction port provided in front of a bottom surface of a lower case of a suction device body formed of an upper case and a lower case, and a rotary brush disposed at the suction port. An electric motor for rotating the rotary brush via a belt or a turbine rotated by suction air in the suction device body, and a side groove for guiding suction air from both sides of the lower case to both sides of the suction port. And a suction device for an electric vacuum cleaner.

[0002]

2. Description of the Related Art As shown in FIGS. 9 to 11, a suction device of a conventional vacuum cleaner includes a suction device body 31 and an upper case 3.
2 and the lower case 33 are formed in a substantially box shape, a suction port 34 is provided in front of the bottom surface of the lower case 32 of the suction device main body 31, and a rotary brush 35 is disposed at the suction port 34. An electric motor 37 that rotationally drives the rotating brush 35 via a belt 36 is provided in the suction device body 31, and a side groove 38 that guides suction air from both sides of the lower case 33 to both sides of the suction port 34 is provided. A suction keeper 39 that guides suction air to the suction port 34 is provided behind the suction port 34 of the lower case 33.

A bumper 40 is provided substantially in the center of the side surface of the suction device main body 31, the lower end of the bumper 40 is extended, and the extended portion is inserted into the lower surface of the lower case 33. The brush is planted on the side surface of the bumper 40 and the side brush 41 is arranged on the front side of the bumper 40, and the brush is planted on the tip of the bumper 40 so as to be adjacent to the first corner brush 42 and the suction keeper 39. .

[0004]

In the suction device for the electric vacuum cleaner having the above-mentioned structure, the end portion of the bumper of the suction device body comes into contact with the wall or the like when cleaning a wall or the like. There is a problem that a gap is formed between the corner brush and the wall, and when the cleaning surface is like a carpet, the dust in the gap is not absorbed and the dust is left in the gap. Further, since the side brush is provided on the side surface of the bumper, there is a problem that the side brush hits furniture or the like and damages the furniture or the like.

The suction device of the electric vacuum cleaner of the present invention has been made in view of the above problems. The suction device is tilted outward on both sides of the bottom surface of the tip of the lower case, and the tip is protruded outward from the wall surface of the suction apparatus body to be lowered. The purpose is to surely be able to absorb dust near the wall by forming a corner brush by bristling the brush toward.

[0006]

In order to achieve the above object, a suction device for an electric vacuum cleaner according to the present invention according to claim 1 is provided with:
A suction port is provided in front of the bottom surface of the lower case of the suction device body formed into an approximately box shape with an upper case and a lower case, and a rotary brush is disposed at the suction port, and the rotary brush is provided in the suction device body. An electric motor that rotates through a belt or a turbine that is rotated by suction air is provided, and side grooves that guide suction air from both sides of the lower case to both sides of the suction port are provided on both sides of the tip bottom surface of the lower case. In addition, the corner brush is formed by inclining the brush to the outside and projecting the tip outward from the wall surface of the main body of the suction device and planting the brush downward. The suction device for an electric vacuum cleaner according to claim 2, wherein the brushes of the corner brushes are arranged in series toward the suction port, and the tip of the brush closest to the suction port is provided on the rotary brush. At least at the tip position.

A suction device for an electric vacuum cleaner according to claim 3 is
A suction port is provided in front of the bottom surface of the lower case of the suction device body formed into an approximately box shape with an upper case and a lower case, and a rotary brush is disposed at the suction port, and the rotary brush is provided in the suction device body. Is provided with a motor that is rotationally driven via a belt or a turbine that is rotated by suction air, and a side groove that guides suction air is provided from both sides of the lower case to both sides of the suction port. Wheels that rotate by movement are provided, and a rotating body that rotates in conjunction with the wheels is provided on both sides of the bottom surface of the tip of the lower case. The tip of the rotor projects outside the side wall of the suction device body, and a brush is planted. And the corner brush is arranged.

The suction device of the electric vacuum cleaner according to claim 4 is:
A suction port is provided in front of the bottom surface of the lower case of the suction device body formed into an approximately box shape with an upper case and a lower case, and a rotary brush is disposed at the suction port, and the rotary brush is provided in the suction device body. Is provided with a motor that is rotationally driven via a belt or a turbine that is rotated by suction air, and a side groove that guides suction air is provided from both sides of the lower case to both sides of the suction port. A sliding body that slides by movement is provided, and swinging bodies that swing together with the sliding body to the outside of the suction device body are provided on both sides of the tip bottom surface of the lower case. A brush is installed.

[0009]

In the suction device of the electric vacuum cleaner according to the present invention, the corner brush formed by projecting the tip outward from the wall surface of the suction device body scrapes off dust near the wall and cleans the dust near the wall. I do. In the suction device of the electric vacuum cleaner according to the second aspect of the present invention, the brushes of the corner brushes that are bristled in series guide the scraped dust to the suction port so that the dust can be easily sucked.

The suction device of the electric vacuum cleaner according to claim 3 comprises:
The wheels rotate due to the movement of the suction device main body, and the rotating body rotates in conjunction with the wheels, and the corner brushes of the rotating body automatically scrape out dust such as near the wall.

The suction device of the electric vacuum cleaner according to claim 3 is:
The sliding body slides due to the movement of the suction device main body, and the oscillating body oscillates in conjunction with the sliding body, and the corner brush of the oscillating body automatically scrapes out dust such as near the wall.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a suction device for an electric vacuum cleaner according to the present invention will be described with reference to FIGS. 1 and 2. Reference numeral 1 denotes a suction device main body, which is an upper case 2 and a lower case 3 formed in a substantially box shape. A suction port 4 is provided in front of the bottom surface of the lower case 2 of the suction device main body 1, a rotary brush 5 is disposed at the suction port 4, and the rotary brush 5 is belted inside the suction device main body 1. 6
The lower case 3 is provided with an electric motor 7 which is rotationally driven via
Side grooves 8 for guiding the suction air from both side portions of the suction port 4 are provided at both side portions of the suction port 4, and a bumper 9 is provided substantially at the center of the side surface of the suction device body 1.
Is provided.

Corner brushes 10 are formed on both sides of the bottom surface of the tip of the lower case 3 by inclining to the outside and projecting the tips outward from the wall surface of the main body of the suction device 1 and brushing the brush downward. The protrusion amount of the corner brush 10 is shown in FIG.
As shown in, the corner brush 10 scrapes up dust near the wall by setting the amount χ so that the wall surface of the suction device body 1 does not contact the wall when the tip of the corner brush 10 contacts the wall. Therefore, it is possible to satisfactorily absorb dust near the wall.

In the figure, 11 is a front wheel provided on the bottom surface of the tip of the suction device main body, 12 is a rear wheel provided on the bottom surface of the rear end of the suction device body 1, and 13 is a rear end of the suction device body 1. It is a suction pipe that is provided so that the elevation angle can be freely rotated.

Further, as shown in FIGS. 3 and 4, the brushes of the corner brushes 14 are arranged in series from the both corners of the tip of the suction device main body 1 toward the suction port 4 and are closest to the suction port 4. As shown in FIG. 4, the tip of the brush 14a of the rotary brush 5
The outermost brush 14b of the corner brush 11 which is positioned and arranged at least at the tip of the blade 15
Are arranged so as to project outward from the wall surface of the suction device body 1.

With this configuration, the brush dust of the corner brush 14 guides the dust on the wall scraped by the outermost brush 14b of the corner brush 14 to the suction port 4, and efficiently and reliably absorbs the dust on the wall. be able to.

Next, a second embodiment of the suction device for the electric vacuum cleaner according to the present invention will be described with reference to FIGS. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

The lower case 3 is provided with wheels 16 which are rotated by the movement of the suction device body 1, and a rotating body 17 which is rotated in conjunction with the wheels 16 is provided on both sides of the bottom surface of the tip of the lower case 3.
A corner brush 18 is provided on the rotary body 17 by protruding the tip of the rotary body 17 outside the side wall of the suction device body 1 to implant a brush.

The wheel 16 has inclined portions 16a on both sides thereof.
And has an inclined portion 17a that abuts the inclined portion 16a.
Is formed on the rotator 17, and the two sloping portions 16a, 17a contact each other, whereby the rotator 17 rotates in association with the rotation of the wheel 16. Further, in order to ensure the transmission of the rotational force of the wheel 16 to the rotary body 17, even if gears are formed on the respective inclined portions 16a and 17a and the rotary body 17 is rotated by the meshing of the gears. Good.

In the suction device of the electric vacuum cleaner having the above structure, when the suction device body 1 is moved for cleaning, first,
The wheel 16 contacts the cleaning surface and rotates, and when the wheel 16 rotates, the rotating body 17 rotates in conjunction with the wheel 16.
Since the corner brushes 18 of the rotating body 17 scrape out the dust near the wall by the rotation accompanying the movement of the suction device body 1, the dust near the wall can be reliably scraped out as compared with the case where the dust near the wall is simply scratched by the movement of the suction device body 1. You can

Further, a third embodiment of the suction device for the electric vacuum cleaner of the present invention will be described with reference to FIGS. 7 and 8. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

The lower case 3 is provided with a sliding body 19 which slides by the movement of the suction device main body 1, and both sides of the bottom surface of the tip of the lower case 3 are interlocked with the sliding body 19 to the outside of the suction device main body 1. An oscillating body 20 that oscillates is provided, and the oscillating body 20
A brush is planted at the lower end of each of the corner brushes 21.

The lower end of the sliding body 19 abuts on the cleaning surface, and the sliding body 19 itself slides back and forth. The rear upper end of the sliding body 19 is directed from the center of the suction device body 1 to the side. And an inclined portion 19a is provided. The swing body 20 is provided with a rotation shaft 22 at the center thereof, and the lower end of the swing body 20 swings from the center of the suction device body 1 sideways around the rotation shaft 22. An abutting portion 2 that is formed and abuts on the upper end of the slanting portion 19a of the sliding body 19.
0a is provided, a spring 23 that constantly biases the upper end side of the rocking body 20 toward the center of the suction device body 1 is provided.

In the suction device of the electric vacuum cleaner having the above structure, when the suction device main body 1 is moved back and forth for cleaning,
First, the lower end of the sliding body 19 abuts on the cleaning surface and slides, and when the sliding body 19 slides, the swinging body 20 swings in conjunction with the sliding body 19. At this time, the inclined portion 19 of the sliding body 19
The contact portion 20a of the rocking body 20 that is in contact with a is the inclined portion 1
Since the inclination of 9a pushes outward against the bias of the spring 23, the corner brush 21 at the lower end of the oscillating body 20 oscillates toward the center from the outside (closer to the wall) of the suction device body 1, and thus dust near the wall. Are scraped out to the suction port 4 of the suction device body 1, and dust on the wall can be reliably sucked.

[0025]

According to the first aspect of the present invention, in the suction device of the electric vacuum cleaner, the corner brush formed by projecting the tip outward from the wall surface of the main body of the suction device scrapes off dust near the wall and absorbs dust near the wall. And can perform good cleaning. In addition, in the suction device of the electric vacuum cleaner according to the second aspect of the present invention, the brushes of the corner brushes that are planted in series can guide the dust that has been scratched out to the suction port and can easily and reliably suck the dust.

The suction device of the electric vacuum cleaner according to claim 3 is:
The wheel rotates due to the movement of the suction device main body, and the rotating body rotates in conjunction with the wheel, and the corner brush of the rotating body automatically scrapes off dust near the wall, etc., so that dust around the wall is reliably absorbed. be able to.

The suction device of the electric vacuum cleaner according to claim 3 is:
The sliding body slides due to the movement of the suction device main body, and the swinging body swings in conjunction with the sliding body, and the corner brush of the swinging body automatically scrapes out dust such as on the wall. The dust can be reliably sucked.

[Brief description of drawings]

FIG. 1 is a perspective view showing a back surface of a first embodiment of a suction device for an electric vacuum cleaner according to the present invention.

FIG. 2 is a cross-sectional view of a main part of FIG.

FIG. 3 is a perspective view showing the back surface of another example of the first embodiment of the suction device for the electric vacuum cleaner according to the present invention.

FIG. 4 is a cross-sectional view of the main parts of FIG.

FIG. 5 is a perspective view showing the back surface of the second embodiment of the suction device for the electric vacuum cleaner according to the present invention.

6 is a cross-sectional view of the main parts of FIG.

FIG. 7 is a fragmentary sectional view showing the back surface of the third embodiment of the suction device for the electric vacuum cleaner of the present invention.

8 is a cross-sectional view of the main parts of FIG.

FIG. 9 is a fragmentary rear surface view showing the rear surface of an example of a conventional suction device for an electric vacuum cleaner.

10 is a partially enlarged perspective view of FIG.

11 is a partial cross-sectional view of FIG.

[Explanation of symbols]

 1 Suction device body 2 Lower case 3 Upper case 9 Bumper 10 Corner brush

Claims (4)

[Claims] 1. A suction port is provided in front of a bottom surface of a lower case of a suction device body formed in an approximately box shape with an upper case and a lower case, and a rotary brush is disposed at the suction port, and the suction device body is provided. An electric vacuum cleaner is provided in which an electric motor for rotationally driving the rotary brush via a belt or a turbine rotated by suction air is provided, and side grooves for guiding suction air are provided from both sides of the lower case to both sides of the suction port. In the suction device, an electric cleaning characterized in that a corner brush is formed by inclining outwardly on both sides of the bottom surface of the tip of the lower case, projecting the tip outward from the wall surface of the suction device body, and brushing the brush downward to form a corner brush. Machine suction device. 2. The brushes of the corner brushes are arranged in series toward the suction port, and the tip of the brush closest to the suction port is positioned at least at the tip position of a blade provided on the rotary brush. The suction device main body of the vacuum cleaner according to claim 1, characterized in that. 3. A suction case is provided in front of a bottom surface of a lower case of a suction device body formed in an approximately box shape by an upper case and a lower case, and a rotary brush is arranged at the suction port, and the suction device body is provided. An electric motor for rotating the rotating brush via a belt or a turbine rotating by suction air is provided therein, and an electric vacuum cleaner having side grooves for guiding suction air from both sides of the lower case to both sides of the suction port is provided. In the suction device, a wheel that is rotated by the movement of the suction device body is provided in the lower case, and a rotating body that rotates in conjunction with the wheel is provided on both sides of the bottom surface of the tip of the lower case. A suction device for an electric vacuum cleaner, characterized in that a corner brush is arranged by projecting a tip outward from a side wall of the brush and implanting a brush. 4. A suction port is provided in front of a bottom surface of a lower case of a suction device body formed in an approximately box shape with an upper case and a lower case, and a rotary brush is disposed at the suction port, and the suction device body is provided. An electric motor for rotating the rotating brush via a belt or a turbine rotating by suction air is provided therein, and an electric vacuum cleaner having side grooves for guiding suction air from both sides of the lower case to both sides of the suction port is provided. In the suction device, a slide body that is slid by the movement of the suction device body is provided in the lower case, and an oscillating body that oscillates outside the suction device body on both sides of the bottom surface of the tip of the lower case in conjunction with the slide body. A suction device for an electric vacuum cleaner, characterized in that a brush is planted on the oscillator and a corner brush is provided.