JP2000033059A - Vacuum cleaner suction tool and vacuum cleaner using the same - Google Patents

Abstract

(57) [Problem] To provide a low noise suction tool for a vacuum cleaner and a vacuum cleaner using the same. SOLUTION: A suction chamber 12 having a dust suction opening below, a suction joint 5 connected to a cleaner main body (not shown), and a bypass suction port 23 arranged at an upper part of the suction tool main body to take in outside air. A bypass passage 22 that communicates the bypass intake port 23 with the suction chamber 12, a first sound absorbing member A24 that absorbs a bypass airflow flowing from the bypass intake port 23 through the bypass passage 22, and a suction joint 5.
A second sound absorbing material B25 for absorbing transmitted sound leaking from the suction chamber 12 to the suction chamber 12 is provided, and the level of noise inside the suction tool can be significantly reduced.

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 which has reduced noise during actual use, and a vacuum cleaner using the same.

[0002]

2. Description of the Related Art A conventional vacuum cleaner suction tool will be described with reference to FIG.

In recent years, the vacuum cleaner suction tool 100 has been required to have high dust collection performance utilizing the high output of the vacuum cleaner and a stable light operation feeling even at a high output. There is also a demand for low noise during actual use. Conventionally, in order to realize a high dust collection performance and a light operation feeling, a bypass passage is provided from a bypass intake port 101 installed on the side of the bottom surface of the suction tool 100 to suppress sticking to the floor and a carpet, and to reduce a bypass flow. Utilization was aimed at high dust collection performance.

[0004]

In the conventional suction device for a vacuum cleaner, the bypass air intake port needs to be installed high in the height direction with respect to the bottom surface in order to prevent sticking to a carpet or the like. As the actual use inside the suction tool,
Noise generated by turbulence of the air current, sudden expansion, collision with a rotating brush, or the like leaks from the bypass intake port to the outside of the suction tool, and contributes to a noise source of the suction tool in actual use.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a suction device for a vacuum cleaner that efficiently reduces noise.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a suction chamber having a dust suction opening below, a suction joint connected to a cleaner body, and an upper part of the suction tool body. A bypass intake port arranged to take in outside air, a bypass passage communicating the bypass intake port with the suction chamber, and a first sound absorbing material A that absorbs a bypass airflow flowing from the bypass intake port in the bypass passage; Second sound absorbing material B that absorbs transmitted sound leaking from the suction joint to the suction chamber
A low-noise suction device for a vacuum cleaner that absorbs airflow noise generated when outside air flowing from the bypass intake port passes through the bypass passage and transmitted sound leaking from the suction joint to the suction chamber side. Can be provided.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION
A suction chamber having a dust suction opening below, a suction joint connected to the cleaner main body, a bypass suction port arranged at an upper portion of the suction tool main body to take in outside air, and communicating the bypass suction port with the suction chamber. A bypass passage is provided, and the bypass passage is provided with a first sound absorbing material A for absorbing a bypass airflow flowing from the bypass intake port and a second sound absorbing material B for absorbing a transmitted sound leaking from a suction joint to a suction chamber. Therefore, the rectifying effect and the sound insulating effect by the sound absorbing material A can be obtained, and at the same time, the effect of noise reduction by the sound absorbing effect by the sound absorbing material B can be obtained.

According to the second aspect of the present invention, the rotary brush is rotatably supported in the suction chamber, and the effect of removing dust attached to the rotary brush by the bypass flow can be obtained.

According to a third aspect of the present invention, the second sound absorbing material B is made of an impermeable material, and the second sound absorbing material B absorbs a bypass airflow flowing from a bypass intake port. Without transmitting, the transmitted sound leaking from the suction joint to the suction chamber is absorbed, so that noise can be efficiently reduced.

According to a fourth aspect of the present invention, a partition is provided between the first sound absorbing material A and the second sound absorbing material B.
The second sound absorbing material B absorbs the transmitted sound leaking from the suction joint into the suction chamber without absorbing the bypass airflow flowing from the bypass intake port, so that the noise can be efficiently reduced and the second sound absorbing material B can be efficiently reduced. The second sound absorbing material B can be made of an inexpensive and lightweight breathable material.

According to a fifth aspect of the present invention, there is provided a main body having a built-in electric blower and a dust collecting chamber for collecting dust, a connection port communicating with the dust collecting chamber and being connected to one end of a hose. ,
A vacuum cleaner provided with an extension pipe having one end connected to the other end of the hose and the other end connected to a connection pipe of the suction tool for a vacuum cleaner according to any one of claims 1 to 4. Is low and can be cleaned quietly.

[0012]

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

In FIG. 1, reference numeral 1 denotes a suction tool main body, which is formed between an outer casing member upper portion 2 and an outer casing member lower portion 3 via a bumper 4 which is a cushioning material formed of a soft material. At the approximate center of the suction tool main body 1, there is a suction joint 5 rotatably held between the outer member upper part 2 and the outer member lower part 3, and the suction joint 5 has a connection connected to a vacuum cleaner. A pipe 6 is provided rotatably. There is a series of communication holes from the suction joint 5 to the connection pipe 6, and dust passes through the communication holes and is collected by the vacuum cleaner.

In front of the suction tool main body 1, there is a suction chamber 12, which is an inlet for sucking dust from a lower opening, and a rotary brush 13 for collecting dust existing on the surface to be cleaned is provided inside the suction chamber 12. Are provided rotatably. In addition, a suction port 7 that communicates the suction chamber 12 with the suction joint 5 and the connection pipe 6 is provided.

Further, the outer member upper portion 2 is connected to outside air and the suction chamber 12.
A bypass passage 22 communicating with the inside of the rotary brush 13 is provided near the upper portion of the rotating brush 13, and a bypass intake port 23 is provided in the bypass passage 22.
Sound absorbing material A2 for absorbing the bypass airflow flowing from
4 and a second sound absorbing material B25 for absorbing transmitted sound leaking from the suction joint 5 to the suction chamber 12. First sound absorbing material A2
4 is made of a gas-permeable material, and the second sound-absorbing material B25 is made of a gas-impermeable material.

In FIG. 2, behind the suction tool body 1,
A room-like space separated left and right by the suction joint 5 is provided, and a drive room 8 provided with a motor 10 as a drive device for rotating the rotating brush 13 is provided on one of the spaces. Also, a control circuit 11 for controlling the motor 10
Is provided in a control room 9 in a direction opposite to the drive room 8. Also, by transmitting the driving force of the motor 10,
The rotating brush 13 is driven to rotate.

In the rotary brush 13 driven to rotate by the motor 10, there is a substantially rod-shaped substrate 21 as a rotation center axis of the rotary brush 13. On the surface of the substrate 21, a plurality of groove bands 75 are provided in the longitudinal direction in an integer multiple number that opens toward the surface of the substrate 21, and the substrate 21 is spirally twisted together with the groove bands 75. .

Further, the bristle brush 18 having a function of wiping on a floor or the like and the peripheral blade 17 having a function of separating dust from the carpet pile are alternately provided on the base material 21 so that the bristle is provided. Insert the groove 18 into the brush 18 and one end of the peripheral blade 17 to
A base 76 to be fixed to the base 1 is provided. Further, an auxiliary blade adhesively fixed to a surface portion of the base material 21 sandwiched between a front surface portion of the rotating blade 13 with respect to a rotating direction of the peripheral blade 17 and a rear surface of the bristle brush 18 adjacent to the rotating brush 13 is provided. The bristle brush 18 is provided so as to extend toward the rear surface.

At one end of the substrate 21, a motor 10
A pulley die 15, which is a pedestal provided with a gear for transmitting the rotational drive of the rotator, is press-fitted and fixed. Also,
The end of the pulley die 15 is provided with a bearing a for supporting the rotating brush 13 so that the rotating brush 13 can freely rotate in the suction chamber 12.
14 are provided. Similarly, at the opposite end of the pulley die 15, a bearing support 19 is provided at the opposite end of the pulley die 15 as a pedestal that supports the bearing b20 that supports the rotating brush 13 so that it can rotate freely.

The operation of the above configuration is as follows.
The first sound absorbing material A24 absorbs the bypass airflow flowing from the bypass intake port 23, while the second sound absorbing material B25 does not absorb the bypass airflow flowing from the bypass intake port 23, and the suction chamber 5 Since the transmitted sound leaking to the side is absorbed, noise can be efficiently reduced.

In the above description, the motor 10 is used as a rotary drive source of the rotary brush 13. However, as another method, a suction airflow generated in the suction port 7 and the suction chamber 12 is supplied to the blade provided on the rotary brush 13. It is also conceivable that the rotary brush 13 is driven to rotate by being sprayed on the nozzle 17, and the same reduction in noise can be achieved.

Further, the suction tool main body 1 in which the rotary brush 13 is not formed in the suction chamber 12 is also conceivable, and the same noise reduction can be achieved.

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

The outer member upper portion 2 has a bypass passage 22 near the upper portion of the rotary brush 13 for communicating the outside air and the inside of the suction chamber 12, and the first sound absorbing member A 24 and the second sound absorbing member B 25 in the bypass passage 22. A partition 26 is formed between them.

The operation of the above configuration is as follows.
The first sound absorbing material A24 absorbs the bypass airflow flowing from the bypass intake port 23, while the second sound absorbing material B25 does not absorb the bypass airflow flowing from the bypass intake port 23, and the suction chamber 5 Since the transmitted sound leaking to the side is absorbed, noise can be efficiently reduced.

Embodiment 3 Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those in the first or second embodiment are denoted by the same reference numerals, and description thereof will be omitted.

In order to connect the suction tool main body 1 described in the first or second embodiment to the vacuum cleaner main body 51 in communication with the dust collecting port 52, a hose 53 made of a soft material and one end face of the hose 53 are provided. The provided connection body 54 is provided so as to be connected to the dust collection port 52.

A hand 55 for controlling the vacuum cleaner main body 51 is provided on the opposite end face of the hose 53. In order to connect the suction tool main body 1 from the hand portion 55, an extension
6 are provided.

The operation of the above configuration is as follows.
The vacuum cleaner in which the suction tool main body 1 is set can quietly clean with low noise.

[0030]

According to the first aspect of the present invention,
The rectification effect and the sound insulation effect by the first sound absorbing material A can be obtained, and at the same time, the effect of noise reduction by the sound absorbing effect by the second sound absorbing material B can be obtained.

According to the second aspect of the present invention, the rectification effect and the sound insulation effect of the first sound absorbing material A can be obtained, and the noise reduction effect of the second sound absorbing material B can be obtained. Can be. Further, the effect of removing dust attached to the rotating brush by the bypass flow can be obtained.

According to the third aspect of the present invention, the second sound absorbing material B absorbs the transmitted sound leaking from the suction joint to the suction chamber without absorbing the bypass airflow flowing from the bypass intake port. Thus, noise can be efficiently reduced.

According to the invention of claim 4 of the present invention, the second sound absorbing material B absorbs the transmitted sound leaking from the suction joint to the suction chamber without absorbing the bypass airflow flowing from the bypass intake port. In addition, the noise can be efficiently reduced, and the second sound absorbing material B can be made of an inexpensive and lightweight breathable material.

According to the fifth aspect of the present invention, since the suction device for a vacuum cleaner having low noise is provided, it is possible to clean quietly.

[Brief description of the drawings]

FIG. 1 is a central longitudinal sectional view of a vacuum cleaner suction tool according to a first embodiment of the present invention.

FIG. 2 is a plan view showing the internal configuration of the vacuum cleaner suction tool.

FIG. 3 is a central longitudinal sectional view of a vacuum cleaner suction tool according to a second embodiment of the present invention.

FIG. 4 is an overall perspective view of a vacuum cleaner suction tool and a vacuum cleaner using the same according to a third embodiment of the present invention.

FIG. 5 is an overall perspective view of a conventional vacuum cleaner suction tool.

[Explanation of symbols]

 2 Upper shell member 5 Suction joint 6 Connection pipe 12 Suction chamber 13 Rotary brush 22 Bypass passage 23 Bypass air inlet 24 First sound absorbing material A 25 Second sound absorbing material B 26 Partition wall

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Koichi Fujita 1006 Kazuma Kadoma, Kadoma City, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. Terms (reference) 3B006 LA01 3B061 AA01 AA06 AA11

Claims (5)

[Claims] 1. A suction chamber having a dust suction opening below, a suction joint communicating with and connected to a cleaner body, a bypass suction port arranged at an upper portion of the suction tool body to take in outside air, and the bypass suction port. A bypass passage communicating with the suction chamber, wherein the bypass passage has a first sound-absorbing material A for absorbing a bypass airflow flowing from the bypass intake port, and a second sound-absorbing member for absorbing transmitted sound leaking from the suction joint to the suction chamber. Sound absorbing material B
Vacuum cleaner suction tool provided with. 2. The suction tool for an electric vacuum cleaner according to claim 1, wherein a rotation brush rotatably supported on the suction chamber is formed in the suction chamber. 3. The suction tool for a vacuum cleaner according to claim 1, wherein the second sound absorbing material B is made of an impermeable material. 4. The suction tool for a vacuum cleaner according to claim 1, wherein a partition is formed between the first sound absorbing material A and the second sound absorbing material B. 5. A main body having a built-in electric blower and a dust collection chamber for collecting dust, a connection port communicating with the dust collection chamber and having one end connected to a hose, and one end connected to the other end of the hose. An electric vacuum cleaner having an extension pipe connected to the other end and connected to a connection pipe of the vacuum cleaner suction tool according to any one of claims 1 to 4.