JP2001353108A - Suction tool for electric vacuum cleaner and electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a small-sized and light-weight suction tool for an electric vacuum cleaner and the electric vacuum cleaner by maintaining dust collecting performance especially on a carpet without raising the torque of a driving source. SOLUTION: A freely rotatable agitator 19 is constituted of a cylindrical rotator 20 and a wiping member 23 fitted to a groove 22 provided in the longitudinal direction of the peripheral surface of the rotator 20. By making the diameter of the rotator 20 larger than before and increasing the speed of the peripheral surface, the power of the drive source can be lowered and the dust collecting performance is maintained even when the rotation speed of the rotator 20 itself is made lower than before. Also, by making the rotator 20 cylindrical, weight is reduced as well. By maintaining the dust collecting performance especially on the carpet without raising the torque of the drive source, this small- sized and light-weight suction tool for the electric vacuum cleaner is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction device for a vacuum cleaner and a vacuum cleaner using the suction device.

[0002]

2. Description of the Related Art Conventionally, a suction device for a vacuum cleaner of this type is generally as shown in FIGS. An agitator-2 is provided inside the suction tool main body 1, and the agitator-2 is provided.
Is composed of a rotatable rotor 3 and a raised cloth brush group 4 formed of a plurality of fine fiber cut pile spinning cloths provided in a plurality of lengthwise directions around the rotor, and the like.
(Not shown) or an air turbine (not shown) using suction air as a driving source to rotate the agitator 2 to brush the floor 5 such as a tatami mat and the cleaning surface such as a carpet 6. The garbage is scraped and cleaned by colliding the group 4 and the like.

[0003]

However, in the conventional suction device for a vacuum cleaner, as shown in FIG. 14, the tips of a plurality of brush groups 4 are placed on the floor with the suction device body 1 placed on the floor. Because it is set to contact the surface, the suction tool body 1
When the is placed on the carpet surface, the bottom surface of the suction tool main body 1 sinks into the carpet surface, and the brush group 4 is bent backward in the rotation direction as shown in FIG.

As a result, the rotational speed of the agitator is reduced, and the power for removing dust is reduced. Therefore, when the torque of the drive source is increased in order to maintain the dust collection performance, the drive source is increased in size. There were problems such as leading to an increase in the shape of the suction tool body.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and does not increase the torque of the driving source, and maintains the dust collection performance, particularly on a carpet, to reduce the size and size of the carpet.
An object of the present invention is to provide a lightweight suction device for a vacuum cleaner and a vacuum cleaner.

[0006]

According to the present invention, in order to solve the above-mentioned problems, a rotatable agitator is provided inside, and the agitator is connected to a cylindrical rotor and the rotor. It consists of a wiping member fitted in a groove provided in the longitudinal direction of the peripheral surface.By increasing the diameter of the rotor and increasing the speed of the peripheral surface, the power of the drive source can be reduced, Even if the rotation speed of the rotor itself is further reduced, the dust collection performance can be maintained, and the weight can be reduced by making the rotor cylindrical, without increasing the torque of the drive source, especially on a carpet. Since the dust collection performance can be maintained, a small and lightweight suction tool for a vacuum cleaner can be provided.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION
A rotatable agitator is installed inside the agitator.
Is composed of a cylindrical rotor and a wiping member fitted in a groove provided in the longitudinal direction of the peripheral surface of the rotor, and increases the diameter of the rotor as compared with the related art to increase the speed of the peripheral surface. As a result, the power of the drive source can be reduced, the dust collection performance can be maintained even if the rotation speed of the rotor itself is reduced, and the weight can be reduced by making the rotor cylindrical.
By maintaining the dust collection performance particularly on a carpet without increasing the torque of the drive source, it is possible to provide a small and lightweight vacuum cleaner suction tool.

According to a second aspect of the present invention, in the first aspect of the present invention, the wiping member is a group of brushes, and particularly, on a carpet, the cut end face of the brush tip of the group of brushes is formed on the carpet. By rotating in contact, the effect of scraping up dust increases, and the dust collection performance can be improved.

According to a third aspect of the present invention, in the second aspect of the present invention, at least one group of brushes is provided with a plurality of notches in a longitudinal direction. When-rotates and the brush group breaks in the cleaning surface, the brush group not only breaks in the rotation direction but also disperses in the direction of the cutout by providing the notch. Therefore, the rotational resistance generated in the brush group can be reduced.

According to a fourth aspect of the present invention, there is provided an electric blower and the suction device for an electric vacuum cleaner according to any one of the first to third aspects, which communicates with the electric blower. Is reduced in size, so that a vacuum cleaner with good operability can be provided.

[0011]

(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIGS. 1, 2 and 3, the suction tool main body 11 includes an upper frame 12 and a lower frame 13, and has a dust collecting chamber 14 therein. An opening 15 is provided in the lower frame 13. And it has a pipe 16 at the rear of the suction tool,
Inside the pipe 16, a suction port 17 is provided from the dust collection chamber 14.
There is provided a passage 18 for transmitting suction by an electric blower (not shown) in a vacuum cleaner main body (not shown) through the inside. Further, an agitator 19 is provided in the dust collecting chamber 14, and the agitator 19 has a rotatable cylindrical rotor 20 and a reduction gear (not shown) inside the rotor. Z)
An electric motor 21 which is a drive source for driving the rotor 20 through the motor is internally provided.

A plurality of continuous grooves 22 are provided in the longitudinal direction of the peripheral surface of the rotor 20, and a brush group 2 is provided in the groove 22.
3 is fitted. In the present invention, the brush group 23 uses a raised cloth brush body made of a spun cloth in a cut pile shape of fine fibers, and the tip of the brush group 23a provided in the normal direction X of the rotor 20 has a wooden floor or the like. The brush group 23b having the same height with respect to the normal direction X is set to be in contact with the floor surface 24 such as a tile surface, and the rotation locus of the tip of the brush group 23b is at least a carpet when the agitator rotates. The rotor 20 is provided at an inclination angle Z that collides with the upper part 25, in this embodiment, at 30 °.

The operation and operation according to the above configuration are as follows. The agitator 19 is an electric motor-2 as a driving source.
1 rotates in the arrow Y direction. When the agitator 19 rotates, the cut end face of the bristle tip of the brush group 23a provided in the normal direction of the rotor 20 collides with the floor surface 24 on the floor surface 24.
Wiping and cleaning on the floor surface 24 is realized.

On the other hand, as shown in FIG. 3, on the carpet surface 25, the rotation trajectory of the tip of the brush group 23b provided at an angle of 30 ° with respect to the normal direction X of the rotor 20 is in the normal direction X. The diameter is smaller than the rotation trajectory of the tip of the provided brush group 23a, and by colliding at least with the carpet surface 25,
Since it is possible to prevent an increase in the rotational resistance generated in the brush group 23b on the carpet 25, it is not necessary to increase the torque of the electric motor 21, and it is possible to provide a small and lightweight suction device for a vacuum cleaner. An electric motor is attached to the rotor 20 as in the example.
When the drive source is required to be reduced in size and weight, for example, when the drive source 21 is internally provided, the effect is large. In the case where the agitator 19 is rotated by using a suction force (suction air) without using the electric motor 21, a higher effect can be expected because the rotation torque is originally small.

(Embodiment 2) Hereinafter, a second embodiment of the present invention will be described with reference to FIGS. The configuration of the suction tool main body 11 is the same as that of the first embodiment, and the description is omitted.
In FIG. 4, a plurality of brush groups 26 having different protrusion margins are provided in the longitudinal direction around the rotor 20, and the brush groups 26 are provided at an inclination angle of 30 ° with respect to the normal direction of the rotor 20. The brush group 26a having a small protrusion allowance and the brush group 26b having a large protrusion allowance are respectively provided at the tip of each brush group when the agitator 19 rotates when the agitator 19 is provided in the normal direction of the rotor 20. The same trajectory as the rotation trajectory is drawn, and the brush group 26a having a small protrusion is set on the carpet surface 25, and the brush group 26b having a large protrusion is set on the floor surface 24.

The operation and operation according to the above configuration are as follows. Compared with the brush group 26a provided in the normal direction of the rotor 20, the brush group 26 provided with an inclination angle of 30 ° with respect to the normal direction so as to draw the same trajectory when the agitator 19 rotates has a small protrusion margin. The brush group 26a rotates on the carpet surface 25 by rotating only the tip of the corner of the cut end surface of the bristle tip of the brush group 26a on the carpet surface 25, thereby reducing the rotational resistance.

Further, the brush group 26b having a large protruding margin rotates on the floor surface 24 by similarly contacting only the corner tip of the cut end face of the bristle tip of the brush group 26b. There is no need to increase the cost, for example, by making the cut end face of the bristle tip of the brush group 26b into a special shape, and it is possible to further improve the softness of floor cleaning. On the carpet surface 25, when the agitator 19 rotates, as shown in FIG. 5, when the root portion of the brush group 26b rotates earlier than the tip portion in the rotation direction Y,
By reducing the bending angle of the tip end portion with respect to the root portion of the brush group 26b, rotation resistance generated in the brush portion can be reduced.

On the other hand, as shown in FIG.
When the root of the brush group 26b rotates later than the tip in the rotation direction Y, the bending angle of the tip of the brush group 26b with respect to the root of the brush group 26b increases, so that the tip of the brush group 26b on the carpet surface 25 The press-contact force of the cut end face increases, the effect of scraping up dust increases, and the dust collection performance can be improved.

(Embodiment 3) Hereinafter, a third embodiment of the present invention will be described with reference to FIG. The configuration of the suction tool body 11 is as follows.
Since the configuration is the same as that of the first embodiment, the description is omitted. In FIG. 7, in a brush group 23 provided with a normal direction X of the rotor 20 and an inclination angle Z of 30 ° with respect to the normal direction X, the root of the brush group 23 at the time of rotation of the agitator 19 The inclination direction of the brush group 23 is set so that the portion rotates ahead of the tip portion with respect to the rotation direction.

The operation and operation of the above configuration are as follows. When the brush group 23 collides with the cleaning surface during the rotation of the agitator 19, and the brush group 23 causes a so-called waist break or the like, by rotating the root portion first in the rotation direction Y from the tip portion, Since the bending angle of the tip end portion with respect to the root portion of the brush group 23 is reduced and the rotational resistance generated in the brush group 23 can be reduced, a small and lightweight vacuum cleaner suction tool can be provided.

This is particularly effective when the drive source is required to be small and light, such as when the electric motor 21 is provided inside the rotor 20 as in this embodiment. Also, the electric motor-21
Agitator-1 using suction force (suction wind)
In the case of rotating 9, more effect can be expected because the torque is small.

(Embodiment 4) Hereinafter, a fourth embodiment of the present invention will be described with reference to FIG. The configuration of the suction tool body 11 is as follows.
Since the configuration is the same as that of the first embodiment, the description is omitted. 8, a brush group 23a provided in the normal direction of the rotor 20 is shown.
Therefore, the brush group 23b provided at an angle of 30 ° with respect to the normal direction has a configuration in which the diameter of the rotation locus formed by the tip of the brush group 23 when the agitator 19 rotates is larger. The inclination angle of the brush group 23 is set such that the root of the brush group 23 rotates earlier than the tip part in the rotation direction.

The operation and operation according to the above configuration are as follows. Brush group 23a provided in the normal direction of rotor 20
The rotation locus of the tip of the brush group 23 when the agitator 19 is rotated is on the carpet surface 25, and the tip of the brush group 23b is provided at an angle of 30 ° with respect to the normal direction. The rotation locus is set so as to be in contact with the floor surface 24. When the agitator 19 rotates, the cut end face of the brush tip of the brush group 23a collides with the carpet surface 25 on the carpet surface 25. The brush group 23b provided with the effect of scrubbing the dust at the brush bristle tips on the carpet 25, the diameter of the rotation locus being large, and the inclined brush group 23b
By setting the inclination direction of the brush group 23b such that the root portion of the b rotates earlier than the tip portion in the rotation direction,
The bend angle of the tip of the brush group 23b with respect to the root of the carpet 25 on the carpet 25 is reduced, and the rotation resistance generated in the brush group 23b can be reduced. Therefore, a small and lightweight suction device for a vacuum cleaner can be provided. Rotor 20 as in the example
This is particularly effective when the drive source is required to be smaller and lighter, such as when an electric motor 21 is internally provided. In addition, electric motor
In the case where the agitator 19 is rotated by using a suction force (suction air) without the rotor 21, the effect can be expected because the torque is small.

(Embodiment 5) Hereinafter, a fifth embodiment of the present invention will be described with reference to FIG. The configuration of the suction tool body 11 is as follows.
Since the configuration is the same as that of the first embodiment, the description is omitted. 9, a brush group 23a provided in the normal direction of the rotor 20 is shown.
Thus, the brush group 23b provided at an angle of 30 ° with respect to the normal direction is formed softly.

The operation and operation according to the above configuration are as follows. The inclination direction of the brush group 23b is set so that the root portion of the brush group 23b having a large diameter of the rotation locus rotates earlier than the tip portion in the rotation direction.
Is soft, so that the brush group 2 on the carpet surface 25
In addition to reducing the bending angle of the distal end portion with respect to the root portion of 3b, the rotational resistance generated in the brush group can be further reduced by forming the material soft, so that a small and lightweight vacuum cleaner suction tool is provided. This is particularly effective when the drive source is required to be small and light, such as when the electric motor 21 is provided in the rotor 20 as in the present embodiment.
In the case where the agitator 19 is rotated by using a suction force (suction air) without using the electric motor 21, a greater effect can be expected because the torque is small.

As means for forming the brush group 23b to be soft, the constituent members of the brush group 23b are formed of a material having a low hardness, the number of brush fibers is reduced, or the brush group is formed of fibers having a smaller diameter. In short, it is only necessary that the brush group 26b bend more easily than the brush group 23a.

Embodiment 6 Hereinafter, a sixth embodiment of the present invention will be described with reference to FIG. The configuration of the suction tool main body 11 is the same as that of the first embodiment, and the description is omitted. In FIG. 10, a plurality of notches 27 are provided in at least one group of the brush groups 23 in the longitudinal direction.

The operation and operation of the above configuration are as follows. When the agitator 19 rotates, after the brush group 23 collides with the cleaning surface, the brush group 23 causes a so-called waist break phenomenon. In this case, the brush group 23 has a notch 27 in addition to the waist break phenomenon in the rotating direction. , The rotational resistance generated in the brush group 23 can be reduced, so that a small and lightweight suction device for a vacuum cleaner can be provided. In particular, the electric motor is attached to the rotor 20 as in this embodiment. This is particularly effective when the drive source is required to be reduced in size and weight, for example, by internally mounting the heater 21.

Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to FIG. The configuration of the suction tool main body 11 is the same as that of the first embodiment, and the description is omitted. In FIG. 11, at least one of the brush groups 23 is provided in a substantially V shape along the longitudinal direction of the circumferential surface of the rotor 20. In the present embodiment, the brush group 23 extends along the longitudinal direction of the circumferential surface of the rotor 20. All of the plurality of provided brush groups are substantially V-shaped. When the agitator 19 rotates, the V-shaped valleys 23c of the brush group 23 extend from both ends 23d in the rotation direction.
Is rotated in advance.

The operation and operation according to the above configuration are as follows. When the agitator 19 rotates, the dust on the cleaning surface is sequentially drawn to the V-shaped valleys 23c of the brush group 23 from both ends of the brush group 23, and the collected dust is efficiently sucked. , Dust collection performance can be improved.

(Embodiment 7) Hereinafter, a seventh embodiment of the present invention will be described with reference to FIG. A vacuum cleaner body 30 having a dust chamber 28 and a motor 29 for collecting dust therein.
A vacuum cleaner having a connection port connected to any one of the suction tool main bodies 11 of the above-described embodiment via a hose 31 and an extension pipe 32, and in particular, a brush on a carpet as compared with the conventional one. An increase in rotational resistance generated in the group can be prevented, and there is no need to increase the torque of the drive source. Therefore, a small and lightweight suction tool for a vacuum cleaner can be provided. In the case where the agitator 19 is rotated by using a suction force (suction air) without using the electric motor 21, a greater effect can be expected because the torque is small.

[0032]

According to the present invention, a rotatable agitator is provided inside, and the agitator is provided in a groove provided in a longitudinal direction of a cylindrical rotor and a peripheral surface of the rotor. It is composed of a fitted wiping member.By increasing the diameter of the rotor and increasing the speed of the peripheral surface, the power of the drive source can be reduced and the rotation speed of the rotor itself can be reduced. In addition to maintaining the dust collection performance, the cylindrical rotor makes it possible to reduce the weight, and it is possible to maintain the dust collection performance especially on carpets without increasing the torque of the drive source. A lightweight vacuum cleaner suction tool can be provided.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a suction tool for a vacuum cleaner showing a first embodiment of the present invention.

FIG. 2 is a side sectional view of an agitator of the vacuum cleaner suction tool.

FIG. 3 is a side sectional view of an agitator of the suction device for the vacuum cleaner.

FIG. 4 is a side sectional view of an agitator of a suction device for a vacuum cleaner showing a second embodiment of the present invention.

FIG. 5 is a side sectional view of an agitator of the suction device for the vacuum cleaner.

FIG. 6 is a side sectional view of an agitator of the suction device for the electric vacuum cleaner.

FIG. 7 is a side sectional view of an agitator of a vacuum cleaner suction tool according to a third embodiment of the present invention.

FIG. 8 is a side sectional view of an agitator of a vacuum cleaner suction tool according to a fourth embodiment of the present invention.

FIG. 9 is a side sectional view of an agitator of a vacuum cleaner suction tool according to a fifth embodiment of the present invention.

FIG. 10 is a front view of a main part of an agitator of a suction device for a vacuum cleaner showing a sixth embodiment of the present invention.

FIG. 11 is an overall view of an agitator of a suction device for a vacuum cleaner showing a first reference example of the present invention.

FIG. 12 is an overall view of a vacuum cleaner showing a seventh embodiment of the present invention.

FIG. 13 is a side sectional view of a conventional vacuum cleaner suction tool.

FIG. 14 is a side sectional view of an agitator of the suction device for the electric vacuum cleaner.

FIG. 15 is a side sectional view of the vacuum cleaner suction tool when the agitator is rotating.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Suction tool main body 19 Agitator 20 Rotor 22 Groove part 23 Brush group 26 Brush group 27 Notch part of brush group 29 Motor 30 Electric cleaner main body

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Koichi Fujita 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. Term (reference) 3B061 AD05 AD16

Claims (4)

[Claims] 1. A wiping member in which a rotatable agitator is provided, and the agitator is fitted into a cylindrical rotor and a groove provided in a longitudinal direction of a peripheral surface of the rotor. Vacuum cleaner suction tool composed of: 2. A wiping member as a brush group.
The suction device for a vacuum cleaner according to the above. 3. The suction tool for a vacuum cleaner according to claim 2, wherein a plurality of notches are provided in a longitudinal direction of at least one group of the brush groups. 4. An electric vacuum cleaner comprising an electric blower and the suction device for an electric vacuum cleaner according to claim 1, which communicates with the electric blower.