JP3033312B2 - Vacuum cleaner suction tool - Google Patents

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 used in ordinary households.

[0002]

2. Description of the Related Art Conventionally, a suction device of this kind of a vacuum cleaner has
For example, a configuration as shown in Japanese Patent Application Laid-Open No. 2-144030 was common. The configuration will be described with reference to FIG. The suction tool main body 1 is provided with a rotor 2 and its drive source 3, and the rotation of the drive source 3 is transmitted via a belt 4 to a gear 5 provided on the rotor 2 to rotate the rotor 2. A drive wheel 6 is provided at the rear of the suction tool main body 1 to lightly operate the carpet, and a motor 7 for rotating the drive wheel 6 is provided.

[0003]

In such a conventional structure, a drive wheel 6 is provided at the rear of the suction tool main body 1 to lightly operate the carpet, and a drive source 7 for rotating the drive wheel 6 is provided. However, the suction tool itself had a large and heavy shape, and was not designed to be easy to use as intended and could be cleaned with a light operation.

The present invention solves the above-mentioned problems, and is compact and easy to use , and can be operated lightly on a carpet.
It is a primary object of the present invention to provide a vacuum cleaner suction tool that does not easily damage the floor surface .

[0005] The second object is to remove dust or the like entangled in the rotor.
To prevent rotation failure due to The third purpose is
Provide a structure that makes it easy to remove the rotor from the suction tool body
Things .

[0006]

According to a first aspect of the present invention, there is provided a suction tool main body.
Suction port provided on the underside of the device, and rotatable inside the suction tool body
A rotor disposed to face the suction port,
A drive source for rotationally driving the rotor, and both ends of the rotor
Attach and rotate integrally with the rotor by the drive source
A driving wheel, wherein the driving wheel is disposed on a lower surface of the suction tool main body.
Projecting to the floor side, and the outer peripheral surface of the drive wheel is made of an elastic material
It is formed. To achieve the above second purpose
In addition, the invention according to claim 2 of the present invention is characterized in that the end of the rotor is
Thread debris that forms a recess between the driving wheel and entangles with the rotor
That are prevented from moving to the end by the driving wheels.
It is. In order to achieve the third object, the contract of the present invention
The invention according to claim 3 is characterized in that the power transmission unit of the drive source is moved from the drive wheels.
It is provided on the end side, and further according to claim 4 of the present invention.
In the invention, a shaft is integrally provided in the power transmission unit, and the shaft is penetrated.
The drive wheels to be held and fixed between the rotor and the power transmission unit.
It is a thing.

[0007]

According to the first aspect of the present invention, the rotor and the rotor are connected to each other.
Since the body is provided with rotating drive wheels, the drive wheels are simultaneously rotated by the rotation of the motor that drives the rotor, so that the carpet can be cleaned lightly. In addition, since the second drive source for driving the drive wheels is not required, the size of the suction tool can be reduced, so that the cleaning work can be easily performed in a small turn. The outer peripheral surface of the drive wheel is made of an elastic material.
Formed, so even if the drive wheel touches the floor, the floor will be damaged
Can be prevented. According to the second aspect of the present invention,
Forms a recess between the end of the rotor and the drive wheels,
The drive is used to move lint, etc. entangled in the child to the end
As it was prevented by the wheel, dust etc. on the rotor during cleaning work
Even if it gets entangled, prevent dust from entering the end side from the drive wheel.
Can prevent and maintain stable rotor rotation
You. According to the third aspect of the present invention, the power transmission of the drive source is provided.
The drive section is located on the end side of the drive wheels, so
The belt can be easily removed, making it easy to remove the rotor
is there. In addition, the drive wheels must be large to make
Even in a wide configuration, the power transmission
The rotor can be easily removed, making it difficult to remove the rotor.
Never. According to the invention described in claim 4 of the present invention, the power
The transmission unit is provided with a shaft integrally, and the drive wheel through which the shaft passes
Is fixed between the rotor and the power transmission unit.
The attachment of the driving wheel is also improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. Reference numeral 10 denotes a suction device, which includes an upper suction device 12 and a lower suction device 13 via a bumper 11.
And a suction chamber 15 having a lower opening as a suction port 14 is formed in front of the suction chamber. Reference numeral 16 denotes a rotor rotatably provided in the suction chamber 15 and includes a brush.
Reference numeral 17 denotes a motor serving as a driving source of the rotor 16, which transmits a rotational force to a gear 19 provided at one end of the rotor 16 via a belt 18 to rotate the rotor 16. 20
Are a pair of drive wheels provided on the left and right sides of the suction port 14, and the outer peripheral surface is formed of an elastic material such as a rubber material. The drive wheel 20 is configured such that its outer peripheral surface protrudes toward the floor from the lower suction tool 13. One of the drive wheels 20 and the gear 19 are
A drive wheel 20 is attached to the end of the rotor 16, and a gear 19 is mounted on the outer side of the rotor 16. The gear 19 integrally forms a shaft 21, which is inserted into the rotor 16, and the gear 19 and the rotor The driving wheel 20 is pinched and fixed by 16. Rotor 16
The other end of the drive wheel 20 is attached to the other end, and is connected by a shaft 21. 22 is a bearing and a shaft 2
1, both ends of the rotor 16 are rotatably held. The drive wheel 20 has an outer diameter dimension larger than the outer diameter dimension of the gear 19 and is mounted adjacent to the gear 19. In addition, the end of the rotor 16 and the drive wheel 20
A concavity is formed between them, and lint and the like entangled in the rotor 16
Configuration in which movement to the end is prevented by the drive wheel 20
It is.

The operation and operation of this embodiment will be described. Flip provided on the left and right of the suction port 14 by the operation of rotating the rotor 16 by the drive source 17 when cleaning the upper Yuutan,
The pair of drive wheels 20 provided integrally with the rotor 16 also rotates simultaneously. Since the drive wheel 20 protrudes toward the carpet from the lower surface of the suction tool lower part 13, the suction tool 10 is lightly operated even on the carpet in order to give a propulsive force to advance the suction tool 10 by the rotational force of the drive wheel 20. Can be.
In addition, since the drive wheel 20 is arranged inside the gear 19, that is, on the rotor 16 side when dust or the like is entangled with the rotor 16, the gear 19 can be easily removed from the belt 18, so that the rotor can be removed. Easy. Further, even when the drive wheels 20 are made large and wide to make the operability lighter, the gear 19 can be easily removed similarly, so that the detachability of the rotor 16 does not deteriorate. Next, a drive wheel 20 provided on the rotor 16 side is formed adjacent to the gear 19, and a concave portion is provided between an end of the rotor 16 and the drive wheel 20.
Is formed, even if dust or the like gets entangled in the rotor 16 during the cleaning operation, the dust can be stopped by the drive wheel 20.
As a result, dust can be prevented from entering the gear 19, so that stable rotation of the rotor 16 can be maintained.

[0010]

As described above, according to the first aspect of the present invention, the carpet can be cleaned lightly.
Since the second drive source for driving the drive wheels is not required, the size of the suction tool can be reduced, and the cleaning work can be easily performed with a small turn. The outer peripheral surface of the drive wheel is made of an elastic material.
Formed, so even if the drive wheel touches the floor, the floor will be damaged
Can be prevented. According to the second aspect of the present invention,
Is driven even when dust is entangled in the rotor during cleaning work
Prevents dust from entering the end of the wheel
The rotation of the rotor can be maintained. Claims of the invention
In the invention described in the third aspect, the power transmission portion of the drive source is located at a position
Since it is provided on the side of the unit, removal of the rotor is also easy. Book
According to the fourth aspect of the present invention, the power transmission unit has one shaft.
A drive wheel provided on the body and through which the shaft passes
Because it is clamped and fixed with the force transmission unit, the mounting of the drive wheel is also easy
It will be good.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a suction tool of a vacuum cleaner showing one embodiment of the present invention.

FIG. 2 is a bottom view of a suction port of the suction tool.

FIG. 3 is a sectional view of an essential part of the rotor and drive wheels.

FIG. 4 is an assembled sectional view of a main part of the rotor and drive wheels.

FIG. 5 is a sectional view of a suction tool of a vacuum cleaner showing a conventional example.

[Explanation of symbols]

 14 suction port 15 suction chamber 16 rotor 17 motor 19 gear 20 drive wheel 21 shaft

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiro Kaji 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References JP-A-4-193137 (JP, A) JP-A-53-127766 (JP, U) JP-A-50-140266 (JP, U) JP-A-4-83153 (JP, U) J. 60-16341 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) A47L 9/02 A47L 9/04

Claims (4)

(57) [Claims] A suction port provided on a lower surface of the suction tool main body;
It is provided rotatably in the suction tool main body and faces the suction port.
And a drive source for rotating the rotor
And attached to both ends of the rotor, and
A driving wheel that rotates integrally with the rotor, wherein the driving wheel
Projecting from the lower surface of the suction tool body to the floor side, and
A suction device for a vacuum cleaner in which the outer peripheral surface of the driving wheel is formed of an elastic material . 2. A recess is formed between an end of a rotor and a drive wheel.
The lint and the like entangled in the rotor move to the end.
The suction tool of a vacuum cleaner according to claim 1 , wherein the suction wheel is prevented by the drive wheel . 3. The power transmission section of the drive source is located closer to the end than the drive wheels.
The suction tool for a vacuum cleaner according to claim 1, wherein 4. A power transmission unit, wherein a shaft is provided integrally with the power transmission unit.
Between the rotor and the power transmission unit
The suction tool for a vacuum cleaner according to claim 3, which is fixed .