JP2003125991A - Suction port for vacuum cleaner and vacuum cleaner using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suction port for a vacuum cleaner and a vacuum cleaner with low cost and excellent dust collecting performance. SOLUTION: In the suction port for the vacuum cleaner, a plurality of agitators (19, 20) composed of rotators (19a, 20a) served as base materials and protrusion bodies 26 longitudinally provided on the peripheral surface of the rotators (19a, 20a) are arranged in a suction chamber 21, and mutual overlapping of respective protrusion bodies 26 of the agitators (19, 20) causes simultaneous rotation of a plurality of agitators to improve the dust collecting performance, so that an inexpensive suction port can be provided to consumers.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, there is a suction tool for an electric vacuum cleaner as disclosed in JP-A-10-12714, which will be described with reference to FIGS.

Reference numeral 1 denotes a suction body, which is formed between an upper member 2 and a lower member 3 with a bumper 4 which is a cushioning member made of a soft material interposed therebetween. Further, an arm 5 rotatably sandwiched between an upper member 2 and a lower member 3 is provided substantially at the center of the suction tool body 1, and the arm 5 has a pipe connected to an electric vacuum cleaner (not shown). 6 is rotatably provided. The arm 5 to the pipe 6 have a series of communication holes 78, and the dust passes through the communication holes 78 and is collected by an electric vacuum cleaner (not shown).

In front of the suction tool body 1, there is a suction chamber 12 which is an entrance for sucking dust in a lower opening.
An agitator 13 for collecting dust existing on the surface to be cleaned is rotatably provided inside. Further, a suction chamber 7 is provided which communicates the suction chamber 12 with the arm 5 and the pipe 6.

On the rear side of the suction tool body 1, an arm 5 is provided.
A space above the room that is divided into the left and the right is provided by the above, and there is a drive chamber 8 in which a motor 10 that is a drive device for rotating the agitator 13 is provided. Also,
A control circuit 11 for controlling the motor 10 is provided in a control chamber 9 that is in a direction opposite to the drive chamber 8. Also,
By transmitting the driving force of the motor 10, the agitator 13 is rotationally driven.

In the agitator 13 which is rotationally driven by the motor 10, there is a substantially rod-shaped rotor 21 as a rotation center axis of the agitator 13. On the surface of the rotor 21,
A positive multiple of groove bands 75 that open toward the surface of the rotor 21 are provided in the longitudinal direction, and the rotor 21 is spirally twisted together with the groove bands 75.

Further, a bristle brush 18 having a wiping function on a floor or the like and a band-shaped soft body 17 having a function of separating dust from the carpet pile are alternately formed on the rotor 21 as projecting bodies. As provided, one end of the bristle brush 18 and the strip-shaped soft body 17 is provided with a groove strip 75.
A base body 76 that is fixed to the rotor 21 is provided. Further, an auxiliary blade adhered and fixed to the surface portion of the rotor 21 sandwiched between at least the front surface portion of the band-shaped soft body 17 with respect to the rotation direction of the agitator 13 and the rear surface of the bristle brush 18 adjacent thereto. 16
Are provided so as to extend toward the rear surface of the bristle brush 18.

A pulley die 15, which is a pedestal provided with a gear for transmitting the rotational drive of the motor 10 via a belt (not shown), is press-fitted and fixed to one end of the rotor 21. . A bearing a14 is provided at the end of the pulley die 15 to support the agitator 13 so that the agitator 13 can freely rotate in the suction chamber 12. Similarly, the other end of the rotor 21 is also provided with a bearing b20 that rotatably supports the agitator 13 so as to freely rotate.
A bearing support 19 is provided at the opposite end of the pulley die 15 as a pedestal that pivotally supports 20.

[0009]

In such a conventional structure, since the number of the agitators 13 is one, the force for separating the dust is weak, and in order to rotate the two agitators 13 between the agitators 13, the agitator 13 must be rotated between the agitators 13. Since a mechanism such as a belt or a gear is required, there is a problem that it becomes complicated and the unit price becomes high.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a suction tool for an electric vacuum cleaner and an electric vacuum cleaner which are inexpensive and have high dust collecting performance.

[0011]

In order to achieve the above object, the present invention comprises a suction chamber having a lower opening for sucking dust,
A plurality of rotatable agitators, each of which is composed of a rotor as a base material and a protrusion provided in the longitudinal direction of the peripheral surface of the rotor, are arranged in the suction chamber, and the protrusions of the agitators are connected to each other. It is a suction tool for electric vacuum cleaners that overlap each other.By providing multiple agitators, the number of times dust is removed at one time and the area are increased to improve dust collection performance, and multiple agitators are formed into a protruding shape such as a brush. Since the body is brought into contact with the body to rotate the body, a mechanism such as a belt or a gear is not necessary, and it is possible to provide a consumer with a lower-priced suction tool.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is provided with a suction chamber having a lower opening for sucking dust, and the rotor as a base material and the longitudinal direction of the peripheral surface of the rotor are provided in the suction chamber. It is a suction tool for an electric vacuum cleaner in which a plurality of rotatable agitators composed of projecting bodies provided in the direction are arranged, and the projecting bodies of each agitator are overlapped with each other. As a result, the number of times dust is removed at once and the area are increased to improve the dust collection performance.Because a plurality of agitators are brought into contact with each other by a protrusion such as a brush to rotate them, a mechanism such as a belt or gear is not required. It is possible to provide consumers with a safe and low cost suction device.

According to a second aspect of the present invention, in the invention according to the first aspect, the material and / or the length of the projecting body of any agitator is different from that of other agitators. It is a different vacuum cleaner suction tool, and by changing the protrusions such as brushes, one agitator can improve dust removal performance, and the other agitator can be adjusted to improve floor polishing performance,
It can be set according to the consumer's cleaning environment.

A third aspect of the present invention is the suction tool for an electric vacuum cleaner according to the first aspect of the present invention, which uses a bristle brush and a band-shaped soft body as the protrusions, respectively. The brush comes into contact with the surface to be cleaned and wipes off the dirt on the floor surface, and the strip-shaped soft body comes into contact with the surface to be cleaned to scavenge dust on the carpet with a strong force.

The invention according to claim 4 of the present invention is the suction tool for an electric vacuum cleaner according to the invention according to claim 1, wherein only the bristle brush is used as the protrusion, and the bristle brush has a surface to be cleaned. The brush brush has less rigidity than the belt-shaped soft body and the frictional force at the agitator contact part is smaller, so the load on the drive source is reduced and the temperature of the drive source rises. And it is possible to prevent an increase in power consumption.

The invention according to claim 5 of the present invention is the suction tool for an electric vacuum cleaner according to the invention according to claim 1, in which only the strip-shaped soft body is used as the projection. Is in contact with the surface to be cleaned and can scavenge dust on the carpet with a strong force, and a belt-shaped soft body has a higher rigidity than the bristle brush and the friction force of the dust removal large part is larger, so a larger drive It is possible to transmit power.

The invention according to claim 6 of the present invention is the suction tool for an electric vacuum cleaner according to any one of claims 1 to 5, wherein the rotor has different outer diameters, and the agitator having a large outer diameter is used. Since it is possible to generate a larger torque, it is possible to scrape up dust that has entered deep inside the carpet,
Further, since the agitator having a small outer diameter can increase the number of rotations, it is possible to increase the number of times to scrape the dust on the surface to be cleaned and to scrape the dust without leaving it.

The invention according to claim 7 of the present invention is the suction tool for an electric vacuum cleaner according to the invention according to claim 6, wherein an agitator having a small outer diameter of the rotor is arranged in front of the suction chamber, Since the agitator having a smaller outer diameter can be arranged further in front of the suction chamber, it is possible to scrape up the dust along the front wall.

According to an eighth aspect of the present invention, in the invention according to the sixth or seventh aspect, the protrusion having the agitator having a large outer diameter of the rotor has an agitator having a small outer diameter of the rotor. Is a suction tool for an electric vacuum cleaner that rotates an agitator having a small outer diameter of the rotor by colliding with a projecting body of the agitator, and since the agitator having a large outer diameter can generate a larger torque, It is possible to easily rotate the agitator.

According to a ninth aspect of the present invention, in the invention according to the sixth to eighth aspects, the rotation direction of the agitator having a large outer diameter of the rotor is directed forward as viewed from above the suction chamber. It is a suction tool for vacuum cleaners that rotate around, and since an agitator with a large outer diameter can generate a larger torque, it has a large self-propelled effect on the surface to be cleaned and a smaller force when cleaning in front. It is possible to clean with.

According to a tenth aspect of the present invention, in the invention according to the first to eighth aspects, the agitator arranged in front of the suction chamber rotates forward as viewed from above the suction chamber. It is a suction tool for an electric vacuum cleaner, and it is possible to prevent a problem that dust in the front is scattered to the outside of the suction tool.

According to an eleventh aspect of the present invention, an electric blower for emitting a suction air contained in a cleaner body is connected to the suction device for an electric vacuum cleaner according to any one of the first to tenth aspects. It is possible to provide an electric vacuum cleaner capable of obtaining a higher dust collecting property.

[0023]

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

The suction tool body 18 contains an agitator A19 and an agitator B20 for releasing dust adhering to the surface to be cleaned such as a carpet, a suction chamber 21 is provided on the bottom surface, a cleaner body 22 and a hose 23 at the rear part, and an extension. A connection pipe 25, which is communicated via a pipe 24, is rotatably provided.

A bristle brush 26, which is a projecting body, is planted on the outer peripheral surfaces of the agitator A19 and the agitator B20, and an electric motor 27, which is the drive source of the agitator A19, and a shaft of the electric motor 27 are mounted inside the agitator A19 and the rotation of the agitator A20 to reduce the rotation speed. A planetary gear 28 (a power transmission unit or a speed reducer, which is hereinafter referred to as a planetary gear) that is transmitted to the agitator A19, and a support member 29 disposed between the electric motor 27 and the planetary gear 28 are incorporated.

The agitator A19 has a larger outer diameter than the agitator B20, and the agitator B20 is arranged in front of the agitator A19. The rotation direction of the agitator A19 is a direction in which the agitator A19 is advanced with respect to the cleaning direction.

The operation of the above configuration is as follows.

When the suction tool main body 18 and the cleaner main body 22 are energized, the electric motor 27 rotates, the rotational torque is increased while being decelerated by the planetary gear 28 and transmitted to the agitator A19, and further the agitator A19 to the agitator B20.
The dust that has been transmitted to the carpet by the bristle brush 26 is scraped off, and the scraped dust is sucked into the cleaner body.

2 of agitator A19 and agitator B20
By providing two agitators to increase the number of times dust is removed at one time and the area to improve the dust collection performance, and since the agitator B20 is contacted with the bristle brush 26 and rotated, a mechanism such as a belt or a gear is unnecessary. It is possible to provide consumers with a safe and low unit price inhaler.

Also, agitator A19 and agitator B2
0 By using only the bristle brush 26, the bristle brush 26 comes into contact with the surface to be cleaned and wipes off the dirt on the floor surface, and the bristle brush 26 has a smaller rigidity than the belt-shaped soft body and the friction at the agitator contact portion is small. Since the force is reduced, the load applied to the drive source is lightened, and it is possible to prevent the temperature rise of the drive source and the increase in power consumption.

Next, since the agitator A19 having a large outer diameter can generate a larger torque, dust that has entered deep inside the carpet can be scraped up, and the agitator B20 having a smaller outer diameter has a larger rotation speed. Therefore, it is possible to scrape the dust on the surface to be cleaned without increasing the number of scrapes of the dust.

Further, the rotor B20a is provided in front of the suction chamber 21.
By arranging the agitator B20 having a smaller outer diameter, the agitator B20 having a smaller outer diameter can be used for the suction tool body 1
8 Since it can be arranged in the front, it is possible to scrape up dust along the front wall.

Further, by rotating the agitator B20 with the agitator A19 having a large outer diameter of the rotor A19a, the agitator A19 having a large outer diameter can generate a larger torque, so that the agitator B20 can be easily rotated. It is possible.

Next, the rotation direction of the agitator A19 having a large outer diameter of the rotor A19a is the direction in which it advances with respect to the cleaning direction, and the agitator A19 having a large outer diameter can generate a larger torque. By rotating the cleaning surface in a direction that has a large self-propelled effect with respect to the cleaning surface and moves forward with respect to the cleaning direction, it is possible to perform cleaning with a smaller force when cleaning the front side.

(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to FIG. The same components as those in the above embodiment are designated by the same reference numerals and the description thereof will be omitted.

In FIG. 4, the agitator A19 is provided with a strip-shaped soft body 30 which is a projecting body, and the agitator B20 is provided with a bristle brush 26. Further, the rotation direction of the agitator B20 is a direction that advances with respect to the cleaning direction.

The operation in the above configuration is as follows.

The agitator A19 uses a band-shaped soft body 30 having a high rigidity and a strong force to scrape dust to improve the dust removal performance, and the agitator B20 implants a bristle brush 26 for cleaning so as to lick the surface to be cleaned. As a result, the floor polishing performance can be improved, and the dust removal performance and the floor polishing performance can be improved. The same effect can be obtained by implanting the bristle brush 26 in the agitator A19 and using the band-shaped soft body 30 in the agitator B20.

In addition, the agitator B20 disposed in front of the cleaning direction is a suction tool for an electric vacuum cleaner in which the rotating direction is forward in the cleaning direction. The agitator B20 disposed in front of the agitator B20 is cleaned in the cleaning direction. By rotating in the forward direction, it is possible to prevent the problem that dust in the front is scattered to the outside of the suction tool body 18 when rotated in the backward direction in the cleaning direction.

(Third Embodiment) Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first and second embodiments are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 5, an agitator A19 and an agitator B20 are provided with a bristle brush 26 and a projecting body of a band-shaped soft body 30, respectively.

The operation of the above configuration is as follows.

Both the agitator A19 and the agitator B20 have a band-like soft body 30 having a high rigidity and a strong force for scraping dust.
Further, the bristle brush 26 for cleaning so that the surface to be cleaned is licked is implanted, so that the dust removal performance and the floor polishing performance can be improved at the same time. Further, the bristle brush 26 and the band-shaped soft body 3 provided in the agitator A19 and the agitator B20.
By increasing or decreasing the number of 0, it is possible to adjust the balance between the dust removal performance and the floor polishing performance.

(Fourth Embodiment) Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those in Examples 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 6, each of the agitator A19 and the agitator B20 is provided with only a strip-shaped soft body 30 as a projecting body.

The operation in the above configuration is as follows.

By using only the band-shaped soft body 30, dust on the carpet can be scraped up with a strong force when it comes into contact with the surface to be cleaned, and the band-shaped soft body has a higher rigidity than the bristle brush. Since the frictional force of the large part of dust removal becomes large, it is possible to transmit a larger driving force.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIGS. In addition, the above-mentioned Examples 1-4
The same components as those of the above are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 7, an electric blower chamber 48 in which an electric blower 47 for generating a suction force is arranged in the rear part, a dust collecting chamber 50 in which a dust collecting bag 49 for collecting dust is arranged in the front part, and the dust collecting chamber A lower body case 52 that forms a dust collecting port 51 that communicates the chamber 50 with the outside air, an upper body case 53 that covers the electric blower chamber 48, and a cover 5 that covers an upper opening of the dust collecting chamber 50.
A hose 23 made of a soft material for connecting the suction tool body 1 according to any one of Embodiments 1 to 5 to the vacuum cleaner body 54 made of No. 4 in order to communicate with the dust collection port 51, and a hose. A connection band 56 provided at one end of 23 is provided so as to be connected to the dust collecting port 51.

At the other end of the hose 23, the cleaner body 2 is attached.
A hand portion 58 for controlling 2 is provided. Further, an extension tube 24 is provided for connecting the suction tool body 1 from the proximal portion 58.

The operation in the above configuration is as follows.

In the electric vacuum cleaner in which the suction tool 1 is set, high dust collecting performance can be obtained regardless of the surface to be cleaned, and maintenance can be easily performed.

[0053]

As described above, according to the present invention, it is possible to provide a suction tool for an electric vacuum cleaner and an electric vacuum cleaner which are inexpensive and have high dust collecting performance.

[Brief description of drawings]

FIG. 1 is a perspective view of an electric vacuum cleaner having a vacuum cleaner suction tool according to a first embodiment of the present invention.

FIG. 2 is a top view of the suction tool for the electric vacuum cleaner.

FIG. 3 is a sectional view of an essential part of an agitator of the suction tool for the electric vacuum cleaner.

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

FIG. 5 is a sectional view of an essential part of an agitator of a suction tool for an electric vacuum cleaner showing a third embodiment of the present invention.

FIG. 6 is a sectional view of an essential part of an agitator of a suction tool for an electric vacuum cleaner according to a fourth embodiment of the present invention.

FIG. 7 is a sectional view of a vacuum cleaner body showing a fifth embodiment of the present invention.

FIG. 8 is an overall side view of the electric vacuum cleaner.

FIG. 9 is a top view of a conventional vacuum cleaner suction tool.

10 is a cross-sectional view taken along the line AA of FIG.

11 is a sectional view taken along line BB of FIG.

FIG. 12 (a) is a top view of the agitator of the suction tool for the electric vacuum cleaner, and FIG. 12 (b) is a sectional view taken along line CC of FIG.

FIG. 13 is an exploded perspective view of an agitator of the suction tool for the electric vacuum cleaner.

FIG. 14 is an explanatory view of the action of the agitator of the suction tool for the electric vacuum cleaner.

[Explanation of symbols]

19 Agitator A 19a rotor A 20 Agitator B 20a rotor B 21 Suction chamber 26 bristle brush (protruding body) 30 Belt-shaped soft body (projection body)

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Hiroyuki Uraya             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Koichi Fujita             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. (72) Inventor Yasushi Fujiwara             1006 Kadoma, Kadoma-shi, Osaka Matsushita Electric             Sangyo Co., Ltd. F-term (reference) 3B061 AD06 AD12

Claims (11)

[Claims] 1. A rotatable rotor including a suction chamber having a lower opening for sucking dust, the rotor serving as a base material in the suction chamber, and a protrusion provided in a longitudinal direction of a peripheral surface of the rotor. A vacuum cleaner suction tool in which a plurality of agitators are arranged and the protrusions of the agitators overlap each other. 2. The suction tool for a vacuum cleaner according to claim 1, wherein the material and / or the length of the protrusions of any agitator are different from those of other agitators. 3. The suction tool for an electric vacuum cleaner according to claim 1, wherein a bristle brush and a band-shaped soft body are used as the protrusions, respectively. 4. The suction tool for an electric vacuum cleaner according to claim 1, wherein only a bristle brush is used as the protrusion. 5. The suction tool for an electric vacuum cleaner according to claim 1, wherein only a strip-shaped soft body is used as the protrusion. 6. The rotor has different outer diameters.
The vacuum cleaner suction tool according to any one of claims 1 to 5. 7. The suction tool for a vacuum cleaner according to claim 6, wherein an agitator having a small outer diameter of the rotor is arranged in front of the suction chamber. 8. The agitator having a large outer diameter of the rotor collides with the projection of an agitator having a small outer diameter of the rotor, thereby rotating the agitator having a small outer diameter of the rotor. The suction tool for a vacuum cleaner according to claim 6 or 7. 9. The suction device for an electric vacuum cleaner according to claim 6, wherein the rotation direction of the agitator having a large outer diameter of the rotor rotates forward when viewed from above the suction chamber. . 10. The suction tool for a vacuum cleaner according to claim 1, wherein the agitator arranged in front of the suction chamber rotates forward as viewed from above the suction chamber. 11. An electric vacuum cleaner in which the suction device for an electric vacuum cleaner according to any one of claims 1 to 10 can communicate with an electric blower which emits suction air contained in a main body of the vacuum cleaner.