JP2004222912A - Suction device for vacuum cleaner and vacuum cleaner with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a suction device for a vacuum cleaner having a high dust sucking capacity in a wall edge, dispensing with a labor of operating a lever, and the like, in cleaning and having a small number of components, and to provide the vacuum cleaner with the same. <P>SOLUTION: The suction device is provided with a rotary brush 9, a drive device rotating the rotary brush 9 and a suction port 15 sucking the dust. The suction port 15 is positioned rearward the rotation center P of the rotary brush 9, the height of the whole suction port 15 is lower than the rotation center P of the rotary brush 9, the front part of a suction device body 6 is opened and the bristles 9a of the rotary brush 9 are projected frontward the suction device body 6. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a suction device for a vacuum cleaner and a vacuum cleaner having the same, and more particularly, to a suction device for a vacuum cleaner having a high suction capability of dust on a wall and a vacuum cleaner having the same.
[0002]
[Prior art]
In the conventional suction device for a vacuum cleaner, the front surface of the rotating brush is covered with a case of the suction device body for the vacuum cleaner, and when cleaning a wall, the rotating brush is used for the case in front of the rotating brush. There was a problem that it was not possible to approach the wall and dust on the wall could not be sucked.
[0003]
In order to solve the above-described problem, in the conventional suction port body for a vacuum cleaner, the lower face and the front face of the suction port body are opened, and the bristles of the rotating brush are projected from the front face of the suction port body, In some cases, a rotary plate is provided on the front surface of the suction port main body so as to cover the rotary brush. This rotating plate can be opened and closed manually, so that when cleaning the floor surface, it covers the front of the rotating brush to increase dust absorption performance, and when cleaning the wall, it comes above the rotating brush and brush The hair is made to protrude from the front surface of the suction port main body (for example, see Patent Document 1). The suction opening corresponds to the suction device of the present invention.
[0004]
[Patent Document 1]
Japanese Utility Model Laid-Open No. 3-949 (page 679, FIGS. 1 and 2)
[0005]
[Problems to be solved by the invention]
In a conventional suction port body for a vacuum cleaner (for example, see Patent Document 1), a rotating plate that can be manually opened and closed is provided in order to solve the problem that dust on a wall cannot be sucked. However, there is a problem in that it is necessary to raise the rotary plate when cleaning the wall, and to lower the rotary plate when cleaning the floor surface, which is troublesome.
In addition, a rotating plate, a lever for opening and closing the rotating plate, and the like must be provided, so that there is a problem that the number of parts increases and the cost increases.
Further, there is a problem that since the dust and the like easily enter around the turning plate, the turning plate becomes difficult to move.
[0006]
An object of the present invention is to provide a suction device for a vacuum cleaner having a high suction capability of dust near a wall, requiring no trouble of operating a lever or the like at the time of cleaning, and having a small number of components, and a vacuum cleaner having the same. Aim.
[0007]
[Means for Solving the Problems]
The suction tool for a vacuum cleaner according to the present invention includes a rotating brush, a driving device for rotating the rotating brush, and a suction port for sucking dust, and the suction port is located behind a rotation center of the rotating brush, The entire height of the suction port is lower than the rotation center of the rotary brush, the front of the suction tool main body is opened, and the bristles of the rotary brush protrude forward of the suction tool main body.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
FIG. 5 is a perspective view showing the entire vacuum cleaner according to Embodiment 1 of the present invention. Inside the vacuum cleaner main body 1, an electric blower, a power control board, a code reel, and the like (not shown) are incorporated. A dust collection chamber (not shown) for collecting dust sucked by the electric blower is provided on the front side inside the vacuum cleaner main body 1.
A hose 2 is connected to the front of the vacuum cleaner main body 1, and a handle 3, a pipe 4 and a pipe 5 are connected to the other end of the hose 2. The handle portion 3 is provided with a handle for a user to grip when using the vacuum cleaner, and an operation portion for switching the strength of rotation of the electric blower inside the vacuum cleaner main body 1 is provided on the surface of the handle portion 3. 3a is provided.
In the first embodiment, two pipes are connected, but any one of the pipes 4 and 5 may be used.
[0009]
A suction device 30 for a vacuum cleaner is detachably connected to a tip of the pipe 5.
The vacuum cleaner suction tool 30 includes a suction tool body 6, an elbow 7, a coupling 8, and a rotating brush 9, and is connected to the pipe 5 by inserting the elbow 7 into the pipe 5. Details of the vacuum cleaner suction tool 30 will be described later with reference to FIG. The suction tool main body 6 has a built-in motor (not shown) that is a driving device for rotating the rotary brush, and is decelerated by a belt, a gear, or the like and transmitted to the rotary brush 9 so that the rotary brush 9 is moved to a predetermined position. It rotates at the rotation speed. In addition, electric wires (not shown) are provided on the hose 2, the handle 3, the pipe 4, and the pipe 5 to supply electric power to the motor, and the electric power supplied to the motor is controlled by operating the operation unit 3a. It can be controlled.
[0010]
FIG. 1 is a cross-sectional view of a vacuum cleaner suction tool 30 according to Embodiment 1 of the present invention, and FIG. 2 is a schematic cross-sectional view of the vacuum cleaner suction tool 30 as viewed from above. The suction device 30 for a vacuum cleaner includes an elbow 7, a coupling 8, a suction device main body 6, and a rotating brush 9, as shown in FIG. The outer shape of the suction tool main body 6 is formed by a lower main body case 10, an upper main body case 11, and a lower main body cover 12, and a rear wheel 13 is attached to the lower main body case 10. The lower body cover 12 may be formed integrally with the lower body case 10. The coupling 8 is sandwiched by the lower main body case 10 so that the angle between the coupling 8 and the suction tool main body 6 can be changed. The space inside the coupling 8 and the space sandwiched between the lower main body case 10 and the lower main body cover 12 form an air passage 8a for conveying the absorbed dust to the vacuum cleaner main body 1.
[0011]
A rotary chamber 14 for accommodating the rotating brush 9 is formed on the front side of the lower body case 10, and the rotating brush 9 is detachably attached to the lower body case 10. The rotating brush 9 is composed of brush bristles 9a made of fiber or the like and a shaft 9b, and rotates about a rotation center P. A suction port 15 is formed behind the rotation center P of the rotating brush 9 by the lower body case 10 and the lower body cover 12, and the height of the suction port 15 from the floor F is the rotation center even at the highest position. It is lower than P.
In FIG. 1, the portion where the rib 16 is provided is lower than the rotation center P, and the entire height of the suction port 15 is formed lower than the rotation center P of the rotating brush 9. The rib 16 is provided on the rotary chamber 14 side of the lower main body case 10 so as to abut on the brush bristles 9a. The suction port 15 has a function of facilitating suction. Note that the rib 16 is desirably provided near the suction port 15.
[0012]
A bumper 17 is mounted between the upper body case 11 and the lower body case 10 at the front end of the suction tool body 6 and above the rotary chamber. The bumper 17 is made of a soft material such as polyvinyl chloride, for example, so that the rotating brush 9 and the suction device main body 6 are not damaged when the suction device main body 6 hits a wall or the like. A projection 17a is provided below the bumper 17 so as to be in contact with the brush bristles 9a so as to prevent dust from jumping out from the front of the rotary chamber 14. The bumper 17 may be attached to either the upper main body case 11 or the lower main body case 10.
[0013]
The suction tool main body 6 is opened forward at the portion of the rotary chamber 14, and the bristles 9 a of the rotary brush 9 attached to the rotary chamber 14 include the bumper 17 from the opened portion of the suction tool main body 6. The suction tool main body 6 projects forward. The brush bristles 9a reach the corners when the suction tool main body 6 is pressed against the corners of the wall and the floor. It is preferable that the shaft 9b is slightly behind the bumper 17 so that the shaft 9b of the rotating brush 9 is not damaged when the suction tool main body 6 is pressed against the wall.
The brush bristles 9a are in contact with the floor, while the shaft 9b has a gap of 1 mm or more from the floor so as not to damage the floor.
[0014]
A spatula 18 is attached to a lower portion of the lower body cover 12 so as to be in contact with the floor surface F. The spatula 18 is located behind the suction port 15, and has a width in the lateral direction (perpendicular to the paper surface) substantially equal to the lateral width of the rotating brush 9. The spatula 18 is made of a soft material such as polyvinyl chloride so as not to damage the floor. The spatula 18 can prevent the dust repelled by the brush bristles 9a from leaking backward, and can increase the suction force from the suction port 15 when cleaning the floor surface.
[0015]
When cleaning a carpet or the like with the vacuum cleaner provided with the suction device 30 for a vacuum cleaner, first, the operation unit 3a is operated to energize the electric blower of the vacuum cleaner main body 1 and dust from the suction port 15 is discharged. The suction is started, and the rotation of the rotating brush 9 is started by interlocking with the suction or operating the operation unit 3a separately. Dust that has been repelled backward by the brush bristles 9a of the rotating brush 9 is sucked from the suction port 15, passes through the air passage 8a and the elbow 7, and is accumulated in the vacuum cleaner main body 1.
[0016]
In the suction device 30 for a vacuum cleaner according to the first embodiment, since the suction port 15 is located behind the rotation center P of the rotating brush 9, dust can be efficiently sucked, and the entire suction port 15 can be sucked. Is lower than the rotation center P of the rotating brush 9, so that the performance of absorbing dust on the floor surface is enhanced. Further, the front of the suction tool main body 6 is opened, and the brush bristles 9a protrude forward of the suction tool main body 6, so that dust on the wall side can be easily scraped off. Further, with such a configuration, it is not necessary to provide a component such as a rotating plate, so that it is possible to save time and labor for cleaning and to reduce production costs (for example, see Patent Document 1).
[0017]
Further, in the first embodiment, the attachment of the spatula 18 prevents the dust repelled by the brush bristles 9a from leaking backward, and increases the suction force from the suction port 15 when cleaning the floor surface. it can. Further, since the projection 17a is provided below the bumper 17 so as to be in contact with the brush bristles 9a, dust can be prevented from jumping out from the front of the rotary chamber 14. Further, since the ribs 16 are provided on the rotary chamber 14 side of the lower main body case 10 so as to be in contact with the brush bristles 9a, the brush bristles 9a of the rotary brush 9 are adjusted and the brush bristles 9a scoop up. Dust is easily sucked into the suction port 15.
[0018]
Embodiment 2. FIG.
FIGS. 3 and 4 are schematic diagrams showing examples of cross sections when the suction tool 30 for a vacuum cleaner according to Embodiment 2 of the present invention is viewed from above. In the example of FIG. 3, the air passage 8 a connected to the suction port 15 is formed so as to fan out toward the suction port 15. Further, in the example of FIG. 4, the air passage 8 a connected to the suction port 15 is formed so as to extend toward the suction port 15 before the suction port 15, and the width of the suction port in the lateral direction is substantially the same as that of the rotating brush 9. It has become. Other configurations of the vacuum cleaner suction tool and the entire vacuum cleaner are the same as those in the first embodiment.
[0019]
In the second embodiment, as shown in FIG. 3, the air passage 8 a connected to the suction port 15 is formed so as to extend toward the suction port 15, so that the dust repelled by the brush bristles 9 a of the rotating brush 9 can cover a wide area. Therefore, dust absorption performance can be improved. Further, if the width of the suction port 15 in the lateral direction is substantially the same as that of the rotary brush 9 as shown in FIG. 4, dust in a wider range can be smoothly sucked.
[0020]
【The invention's effect】
As described above, according to the present invention, since the suction port is located behind the rotation center of the rotating brush, dust can be efficiently sucked, and the entire height of the suction port is reduced by the rotation center of the rotation brush. , The dust absorbing performance of the dust on the floor surface is improved. Further, since the front of the suction tool main body is opened and the brush bristles protrude forward of the suction tool main body, dust on the wall can be easily scraped off. Further, by adopting such a configuration, it is not necessary to provide a component such as a rotating plate, so that it is possible to save labor for cleaning and to reduce production cost.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a suction tool for a vacuum cleaner according to Embodiment 1 of the present invention.
FIG. 2 is a schematic cross-sectional view of the suction tool for a vacuum cleaner according to Embodiment 1 of the present invention when viewed from above.
FIG. 3 is a schematic view showing an example of a cross section when the suction tool for a vacuum cleaner according to Embodiment 2 of the present invention is viewed from above.
FIG. 4 is a schematic diagram showing another example of a cross section when the suction tool for a vacuum cleaner according to Embodiment 2 of the present invention is viewed from above.
FIG. 5 is a perspective view showing the entire vacuum cleaner according to Embodiment 1 of the present invention.
[Explanation of symbols]
1 Vacuum cleaner main body, 2 hose, 3 handle, 3a operation section, 4 pipe, 5 pipe, 6 suction tool main body, 7 elbow, 8 coupling, 8a air path, 9 rotating brush, 9a brush hair, 9b shaft, 10 lower body case, 11 upper body case, 12 lower body cover, 13 rear wheel, 14 rotary chamber, 15 suction port, 16 rib, 17 bumper, 17a projection, 18 spatula.

Claims (4)

In a suction device for a vacuum cleaner having a rotating brush, a driving device for rotating the rotating brush, and a suction port for sucking dust,
The suction port is located behind the rotation center of the rotating brush, the entire height of the suction port is lower than the rotation center of the rotating brush, the front of the suction tool body is opened, and the bristles of the rotating brush are removed. A suction tool for a vacuum cleaner, wherein the suction tool protrudes forward of the suction tool body. The suction tool for a vacuum cleaner according to claim 1, wherein an air passage connected to the suction port is formed to extend toward the suction port. In a suction device for a vacuum cleaner having a rotating brush, a driving device for rotating the rotating brush, and a suction port for sucking dust,
The suction port is located behind the center of rotation of the rotating brush, an air passage connected to the suction port is formed to extend toward the suction port, a front portion of the suction tool body is opened, and A suction tool for a vacuum cleaner, wherein brush bristles protrude forward of the suction tool body. An electric vacuum cleaner comprising the vacuum cleaner suction tool according to claim 1.

Images