JP2823013B2 - Vacuum cleaner and its suction body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique in which a rotary brush body is provided in a mouthpiece, and the rotary brush body is driven to rotate by suction to collect dust.

[0002]

2. Description of the Related Art The suction port of a conventional vacuum cleaner is disclosed in
As described in 61-7806 and 61-7807, to effectively absorb dust adhering to a carpet as a suction opening body for effectively cleaning both a hard floor surface and a carpet. There is a type provided with a rotating brush and a turbine for driving the rotating brush. The suction opening body has a suction passage connected to a dust collector of a vacuum cleaner and a brush chamber opening toward the floor formed by a partition wall on a main body traveling on the floor, and a turbine formed in the suction passage. And a rotating brush driven by a turbine via a driving member in the brush chamber.

[0003]

In the above prior art, a horizontally long brush chamber opening toward the floor and a turbine chamber having a turbine at the rear are provided, and a suction air passage and a transmission chamber communicating with an extension pipe are provided. The rotating brushes are supported by bearings and housed rotatably, and the rotating brushes and the turbine are connected by a belt in a transmission chamber. For this reason, the suction port itself becomes large, and operability or handling is inconvenient. In addition, when performing maintenance such as removing dust, lint, and hair wrapped around the rotating brush, handling was difficult because the belt hindered removal of the rotating brush. In addition, since the turbine chamber is a suction passage for dust and the like, hair and lint are entangled with the turbine or lint collects between the blades of the turbine, thereby hindering rotation of the turbine and reducing suction performance. . Further, the structure was such that dust and the like easily adhered to the bearing portion. On the other hand, the rotation of the turbine is reduced and transmitted by a power transmission belt stretched between a small pulley provided on the shaft end of the turbine and a large pulley provided on the rotary brush. Therefore, since the turbine rotates at several times the rotation speed of the rotating brush, a speed fluctuation occurs in the flow flowing into the turbine and interferes with the turbine. Is more likely to occur. In particular, when the suction opening is separated from the cleaning surface, the rotating brush is in a no-load state, and the amount of air suction increases, so that the number of rotations of the turbine and the rotating brush increases. There was a problem of giving pleasure. In addition, when cleaning a carpet with long bristle feet, only the turbine is rotating if the rotating brush reduces resistance due to the resistance of the rotating brush, or if it becomes unable to rotate due to suction of large dust. In addition, the pulley and belt jumped, causing noise.

[0004] A first object of the present invention is to provide a mouthpiece for an electric vacuum cleaner which can be reduced in weight by a simplified structure and can be easily disassembled and assembled. A second object of the present invention is to provide a vacuum cleaner having excellent maintainability. A third object of the present invention is to provide a highly reliable rotating brush body which can be reduced in weight and is suitable for use in a mouthpiece which can be easily disassembled and assembled.

[0005]

The object of the present invention is to provide a suction port.
Suction body, and a rotating brush body and
On the side of the rotating shaft of the rotating brush body and on the coaxial line
A turbine for generating a driving force for the rotating brush body;
Empty space that communicates with the space in the suction body where the transfer brush body is provided.
A suction body of a vacuum cleaner having a joint forming an air passage
In the suction body, on the opposite side of the suction port,
The suction brush body covering the rotary brush body and the turbine;
A rotating brush body and
And the turbine can be integrally attached to and detached from the suction body.
This is achieved by configuring as follows. The above purpose
Is a suction body with a suction port, and rotates inside this suction body.
Between the brush body and the side of the rotating brush body in the rotation axis direction.
A coaxial line for generating a driving force for the rotating brush body.
A bottle and an empty space in the suction body provided with the rotating brush body.
With a joint forming an air passage communicating therewith
A suction body of a vacuum cleaner, wherein the suction body is provided with the suction port
On the other side, covers the rotating brush body and the turbine.
A cover that can be attached to and detached from the suction body,
In the direction of the rotation axis of the rotating brush body,
Side, integral with the rotating brush body and the turbine,
By providing a removable bearing for the suction body
Achieved. In addition, the above object is to provide a
Body, the rotating brush body and the rotating brush inside the suction body.
The rotating brass is on the side of the rotating body in the direction of the rotating axis and on the coaxial line.
A turbine for generating a driving force for the body, and the rotating brush body
Forms an air passage communicating with the space in the suction body
A suction body of a vacuum cleaner having a joint formed
On the opposite side of the suction opening body from which the suction opening is provided
A cover for covering the rotating brush body and the turbine on a surface
A rotating shaft of the rotating brush body,
Outside the rotating brush body and the turbine.
Switching means for switching the attachment and detachment of the cover,
Operating the switching means to open the cover.
The rotating brush body, turbine and bearing
So that it can be attached to and detached from the suction main body.
And is achieved by: In addition, the above-mentioned purpose is
And a suction body connected to the main body of the vacuum cleaner by an air passage.
The suction body has a suction body having a suction port and the suction body.
A rotating brush body that is driven to rotate in the mouth
The rotating bush is on the side of the rotating body in the direction of the rotating axis and on the coaxial line.
A turbine for generating driving force for a brush body, and the rotating brush
An air passage communicating with the space inside the suction body where the body is provided
A vacuum cleaner comprising:
In the mouth body, on the opposite side of the suction port, the rotating brush body and
And covers the turbine and is removable from the suction body
A rotary cover and the turbine.
Integrally detachable from the suction body
Achieved by In addition, the above-mentioned purpose is
And a suction body connected to the main body of the vacuum cleaner by an air passage.
The suction body has a suction body having a suction port and the suction body.
A rotating brush body that is driven to rotate in the mouth
The rotating bush is on the side of the rotating body in the direction of the rotating axis and on the coaxial line.
A turbine for generating driving force for a brush body, and the rotating brush
An air passage communicating with the space inside the suction body where the body is provided
A vacuum cleaner comprising:
In the mouth body, on the opposite side of the suction port, the rotating brush body and
And covers the turbine and is removable from the suction body
And a front cover in the rotation axis direction of the rotating brush body.
Outside the turbine, the rotating brush body and the
Bearing integrated with the suction bottle and detachable from the suction body
This is achieved by providing: In addition, the purpose
Cleaner body and suction port connected to this cleaner body by air passage
And a suction body, wherein the suction body has a suction port.
And a rotating brush body and the rotating brush in the suction body.
Said rotating brush on the side of the body axis of rotation and coaxially
A turbine for generating a body driving force, and the rotating brush body
Form an air passage communicating with the space inside the provided suction body
A vacuum cleaner provided with a fitting that performs
On the surface of the body opposite to the side where the suction port is provided, the
A rotating brush body and a cover for covering the turbine;
In the direction of the rotation axis of the rotating brush body,
Side, the rotary brush body and the turbine bearing are provided.
A switching means for switching the attachment / detachment of the cover is provided.
By opening the cover by operating the switching means of
The rotary brush body, turbine, and bearing are integrally
By being configured to be removable from the mouth body
Achieved. In addition, the above purpose is
In the rotating brush body provided and driven to rotate,
Bearings are provided on both sides of the rotating brush body in the direction of the rotation axis.
The rotary brush generates a rotational driving force inside the
This is achieved by providing a bin. Rotating bra above
The body may be constituted by a blade.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of the mouthpiece main body 1, showing a state in which an upper case is partially removed. Here, the lower case 2 has a bumper 3 for shock absorption in front and side, and a wheel 5 for movement. A bent joint 4 for putting dust from the suction port 6 on the suction airflow and sending the dust to a cleaner body (not shown) is located at the rear. A rotary brush 7 is arranged in the suction port 6, and both ends are rotatably supported by bearings 9. A turbine 10 is provided inside the bearing 9 and is connected to the rotary brush 7. On the outer periphery of the rotating brush 7, there are a base 16 having a fitting groove which is continuous in a longitudinal direction on a spiral line, and a blade 23 having a soft pliability which fits into the fitting groove. A partition 11 is provided between the rotating brush 7 and the turbine 10,
A turbine chamber 12 is formed. The lower case 2 is provided with a guide passage 14 for guiding the air passing through the turbine 10 to the bent joint 4. The removable brush cover 15 covering the rotating brush 7 and the turbine 10 has a turbine 1
An intake port 13 is opened facing the intake port 0, and a switching lever 8 for attaching and detaching to and from the intake main body 1 is provided. Although the intake port 13 is not shown, the same effect can be obtained even if it is located on the front surface of the lower case 2.

With this configuration, when the vacuum cleaner is operated to perform cleaning, air flows from the intake port 13 to the turbine 10, the guide passage 14, and the bend joint 4, causing the turbine 10 to rotate. The rotating brush 7 rotates in synchronization with the rotating force, and the surface to be cleaned is scraped up by the blades 23 of the rotating brush 7, and smoothly bends along the suction airflow from the suction port behind the rotating brush 7. 4 and is sucked into the cleaner body.

Here, when the suction main body 1 is in close contact with a carpet having a long bristle foot, a gap with the floor surface is lost and the suction airflow tends to be insufficient, but the suction airflow can be supplemented from the suction port 13 of the turbine 10. In addition, the rotation force of the turbine 10 can be prevented from being reduced, and the rotation of the rotating brush 7 can be continued to effectively absorb dust and lint adhering to the carpet. In addition, turbine 1
Since the zero intake port 13 is not in contact with the floor surface, it is possible to prevent rotation failure due to dust and lint adhering to the bearing 9 and the like of the rotating brush 7. Moreover, the turbine chamber 1
2 can reduce the gap with the outer periphery of the turbine 10, so that the efficiency of the turbine 10 is improved. Furthermore, turbine 1
Since there is no entry of hair or cotton dust, which is a factor that hinders the zero rotational force, suction performance can be maintained.

On the other hand, in the case of floor cleaning, the rotation of the rotating brush 7 is unnecessary. Even if the suction port main body 1 is in close contact with the floor surface, a gap through which air flows in is secured, and thus the suction port 6 is provided with a sufficient suction airflow. Therefore, the intake airflow from the intake port 13 of the turbine 10 does not rotate the turbine 7 due to its low speed. Therefore, there is no need to switch the presence or absence of rotation of the turbine 7 according to the cleaning surface, and the inconvenience during cleaning is eliminated.

Next, as shown in FIG. 2, the brush cover 15 is opened by operating the switching lever 8 of the brush cover 15 to remove the hair, lint and the like entangled with the rotating brush 7. The cleaning can be performed by removing the rotating brush 7 and the turbine 10. Thus, as in the conventional mouthpiece shown in FIG.
Unlike the case in which the rotary brush 18 is connected to the turbine 19 by the belt 22, no trouble is required to remove the rotating brush 18. Further, since the turbine chamber 20 located behind the rotary brush chamber is eliminated, the size of the suction main body can be reduced.

Further, the turbine 10 integrated with the rotating brush 7 rotates at a speed of about 3,000 rpm to about 5,000 rpm, and the torque of the turbine is reduced by a belt and transmitted to the rotating brush. Compared to the case where the rotation speed of the turbine is greatly reduced, the speed fluctuation of the flow flowing into the turbine is less likely to occur, and the number of turbine blades *
It is possible to reduce the blade rotation noise based on the rotation speed. Even if a blade rotation sound is generated, the frequency is in a low frequency band in frequency, so that it is hard to be heard by human hearing and is solved from discomfort during cleaning. Furthermore, a belt 22 for power transmission
Since the pulley 21 and the pulley 21 are not required, tooth skipping and belt banging noise caused by a timing deviation are eliminated, so that the noise of the suction main body can be reduced.

FIG. 3 shows another embodiment in which a plurality of holes are formed in partition plates 14a and 14b forming a guide flow path 14 of the lower case 2, and a sound absorbing material 17 is stored around the holes. .
Since the airflow flowing from the intake port 13 of the turbine 10 and the blade rotation sound and the vortex sound generated by the turbine are absorbed by the sound absorbing material 17, noise can be reduced.

According to this embodiment, the number of components of the suction main body is small and the structure is extremely simple, so that the working process at the time of assembling can be simplified, and the effect of cost reduction is great. Further, the downsizing and weight reduction of the mouthpiece body facilitates handling and improves operability during cleaning.

According to the configuration of the embodiment according to the present invention,
Integrating the rotating brush and turbine eliminates the need for power transmission belts and pulleys, simplifying maintenance of the rotating brush, reducing the number of parts, and reducing the size and weight of the suction port itself. In addition, the effect of cost reduction including simplification of the working process at the time of assembly is great. In addition, the operability during cleaning is improved by reducing the weight. Further, when performing maintenance such as removal of hair or lint wound around the rotating brush, opening the brush cover allows the rotating brush and the turbine to be integrally removed, so that handling is easy.

When the suction body comes into close contact with a carpet with long hairs, there is no gap between the floor and the suction air flow, and the suction airflow tends to be insufficient. Since the suction airflow can be supplemented, even if the suction port is closely attached to a carpet with long hairs, the rotation of the turbine can be prevented from decreasing. Dust can be absorbed effectively. Also,
Since the intake port of the turbine is not in contact with the floor, it is possible to prevent rotation failure due to dust and lint adhering to the bearing portion of the rotating brush. Further, since there is no entry of hair or cotton dust which is a factor that hinders the rotational force of the turbine, suction performance can be maintained.

[0016] The partition plate forming the guide flow path behind the turbine is provided with a hole and a sound absorbing material is housed outside the partition plate, so that the blade sound and the vortex sound generated from the turbine are absorbed and the noise is reduced. Can be.

Since the turbines are provided at both ends of the rotary brush and integrated, the speed of the turbine can be low, so that the speed fluctuation with the suction air flow is reduced and the blade rotation noise of the turbine is hardly generated. In addition, since a power transmission belt and pulley are not required, tooth skipping and belt tapping noise caused by timing deviation are eliminated.

[0018]

According to the mouthpiece of the present invention, since the rotating brush body is provided detachably on the mouthpiece body integrally with the turbine, the structure is simplified and the weight of the mouthpiece can be reduced.
Disassembly and assembly are facilitated. Further, according to the electric vacuum cleaner of the present invention, it is easy to disassemble and assemble the mouthpiece, and it is possible to have excellent maintainability. Further, according to the rotating brush body of the present invention, since the rotating brush body is used for the suction body of the electric vacuum cleaner, the driving mechanism of the rotating brush body is simplified, the weight of the suction body can be reduced, and the disassembly and assembly is facilitated. . At this time, since the bearings are provided on both sides of the rotating brush body, dust hardly adheres to the bearing portion, and the reliability can be improved.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of an embodiment of the present invention, in which an upper case is partially cut away.

FIG. 2 is a perspective view showing a state in which a rotating brush in FIG. 1 is removed.

FIG. 3 is a partially cutaway sectional view showing another embodiment.

FIG. 4 is a front view showing a conventional mouthpiece.

[Explanation of symbols]

1 ... Suction body, 4 ... Bend joint, 7 ... Rotating brush, 1
0: turbine, 12: turbine chamber, 13: intake port, 14
... guide channel, 17 ... sound absorbing material.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-176870 (JP, A) JP-A 54-177170 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A47L 9/04 A47L 9/00 103

Claims (10)

(57) [Claims] A suction main body having a suction opening, a rotary brush body in the suction main body, and a turbine for generating a driving force for the rotary brush body on the same side as the rotation axis of the rotary brush body and coaxially. A joint forming an air passage communicating with a space in the suction main body provided with the rotating brush body, a suction body of the vacuum cleaner, wherein the suction main body, on the opposite side of the suction port, A vacuum cover that covers the rotary brush body and the turbine and that is detachable from the suction main body, so that the rotary brush body and the turbine can be integrally removed from the suction main body. Mouthpiece. 2. A suction main body having a suction opening, a rotary brush body in the suction main body, and a turbine for generating a driving force for the rotary brush body on the same side as the rotation axis of the rotary brush body and coaxially. A joint forming an air passage communicating with a space in the suction main body provided with the rotating brush body, a suction body of the vacuum cleaner, wherein the suction main body, on the opposite side of the suction port, A cover that covers the rotating brush body and the turbine and that is detachable from the suction main body. In a rotation axis direction of the rotating brush body, outside the turbine, and integrally with the rotating brush body and the turbine. ,
A suction body for a vacuum cleaner, comprising a bearing detachable from the suction main body. 3. A suction main body having a suction opening, a rotary brush body in the suction main body, and a turbine for generating a driving force of the rotary brush body on the same side as the rotation axis of the rotary brush body and coaxially. A joint forming an air passage communicating with a space in the suction main body provided with the rotating brush body, wherein the suction port of the suction main body is provided. A cover for covering the rotating brush body and the turbine on an opposite surface; and a bearing for the rotating brush body and the turbine outside the turbine in a rotation axis direction of the rotating brush body; A switching means for switching the attachment / detachment is provided, and by operating the switching means to open the cover, the rotating brush body, the turbine, and the bearing can be integrally attached to / detached from the suction main body. The suction body of the vacuum cleaner, characterized in that was Unishi. 4. The suction body of a vacuum cleaner according to claim 1, wherein the rotating brush body is constituted by a blade. 5. A cleaner body, a suction body connected to the cleaner body by an air passage, wherein the suction body has a suction port, and a rotary brush rotatably driven in the suction body. Body, a turbine that generates a driving force for the rotating brush body on the side of the rotating shaft direction and coaxially with the rotating brush body, and an air passage communicating with a space in a suction body provided with the rotating brush body. A vacuum cleaner comprising: a joint forming the suction body; and a cover that covers the rotary brush body and the turbine on the opposite side of the suction port, the cover being detachable from the suction body. An electric vacuum cleaner, wherein the rotating brush body and the turbine are integrally detachable from the suction main body. 6. A cleaner body, a suction body connected to the cleaner body by an air passage, wherein the suction body has a suction port, and a rotary brush rotatably driven in the suction body. Body, a turbine that generates a driving force for the rotating brush body on the side of the rotating shaft direction and coaxially with the rotating brush body, and an air passage communicating with a space in a suction body provided with the rotating brush body. A vacuum cleaner comprising: a joint forming the suction body; and a cover that covers the rotary brush body and the turbine on the opposite side of the suction port, the cover being detachable from the suction body. In the rotation axis direction of the rotating brush body, outside the turbine, integrally with the rotating brush body and the turbine,
A vacuum cleaner comprising a bearing detachable from the mouth main body. 7. A cleaner body, a suction body connected to the cleaner body by an air passage, wherein the suction body has a suction port, a rotating brush body in the suction body, and a rotating body. A turbine that generates a driving force for the rotating brush body on the side of the rotating shaft direction of the brush body and on a coaxial line, and a joint that forms an air passage communicating with a space in a suction body provided with the rotating brush body. A vacuum cleaner comprising: a cover that covers the rotating brush body and the turbine on a surface of the suction body opposite to the side where the suction port is provided; and a rotation axis direction of the rotating brush body. The rotating brush body and the bearing of the turbine are provided outside the turbine, and switching means for switching attachment / detachment of the cover is provided. By operating the switching means to open the cover, Rolling brush body integrally turbine and bearing, vacuum cleaner, characterized in that to allow detachable from the suction port body. 8. The vacuum cleaner according to claim 5, wherein said rotating brush body is constituted by a blade. 9. A rotary brush provided on a suction body of a vacuum cleaner and driven to rotate, wherein bearings are provided on both sides in the rotation axis direction of the rotary brush, and rotation of the rotary brush is provided inside the bearing. A rotary brush body comprising: a turbine that generates a driving force. 10. A rotating brush body according to claim 9, wherein said rotating brush body comprises a blade.