JP3064640B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bag-shaped filter for collecting dust.
A dust container with a built-in dust collector.
The present invention relates to a vacuum cleaner to which a main body is attached .

[0002]

2. Description of the Related Art Conventionally, in this type of vacuum cleaner, generally, a dust container detachably formed in a main body having a built-in electric blower is detached from the main body, and garbage disposal is appropriately performed.

[0003] In the case of a vacuum cleaner of the type using a bag-shaped disposable filter for sanitary waste disposal, generally, as shown in FIG. For example, a net-shaped air inlet cover 21 is provided in the dust container 20 so as to have a concave lid, while the side surface of the filter 22 is surrounded by a net expander 23. First, the filter 22 is clogged by the fine dust collected and the electric blower 1
In order to provide a space in front of the intake hole 19 for the reason that the intake hole 19 of the filter 8 is closed and sealed with the top surface of the filter 22 to prevent the vacuum cleaner from sucking, This is because even if the intake hole cover 21 is closed, the periphery of the side surface of the filter 22 is opened to take in air from the surroundings, and to prevent the vacuum cleaner from stopping suctioning. The reason why the intake hole cover 21 is formed as a lid that is inwardly concave is to prevent the dust collection container 20 from being caught on the main body 24 when the dust collection container 20 is detached from the main body 24.

In general, the filter 22 is formed so as to be easy to sew, so as to form a rectangular parallelepiped when expanded as shown in FIG. 8, while the dust collecting container 20 is provided with the electric blower 18.
The expander 23 is also formed in a cylindrical shape along the inner wall of the dust collecting container 20 in order to increase the dust collecting volume.

[0005]

However, if the air inlet cover 21 is provided, it takes time to attach and detach the air inlet cover 21. In addition, it is necessary for the user to manually attach and detach the air inlet hole cover 21 which is contaminated with fine dust. The first problem is that even if the bag-shaped filter 22 is used, sanitary waste disposal cannot be performed easily.

Further, when the filter 22 is full of dust, as shown in FIG. 7, the periphery of the filter 22 bites into the mesh of the expander 23, and the filter 22 comes into close contact with the surrounding expander 23, making it difficult to take out the trash. There were two issues.

Further, since a large amount of dust adheres to the expander 23 and forcibly pushes and expands the filter 22 in a cylindrical shape as shown in FIG. 8, the filter 22 has a large tear resistance required as a material. However, the material cost of the disposable filter 22 is disadvantageous in terms of production cost, and reducing the required strength has been a third problem.

[0008] In addition, unless the inner diameter of the cylinder of the expander 23 is smaller than that of the filter mounting portion 25 of the suction port provided in the dust collecting container 20, when the filter 22 becomes full of dust, as shown in FIG. The effective dust collection volume of the filter 22 is smaller than that of the expander 23 because the filter 22 is caught by the part 25 and cannot be taken out. There were four issues.

An object of the present invention is to solve these problems and to provide a filter for a vacuum cleaner having excellent usability.

[0010]

First means of the present invention to achieve the above object, according to an aspect of the hose suction can be connected to extension pipe and cleaning nozzles above end, the top opening co
Dust collecting container having an inlet port communicating with the hose on the side wall
And a built-in electric blower with an intake hole opened downward,
Removably attached to close the upper opening of the dust collection container
A body having an opening, wherein the opening is provided with the intake air;
Substantially bag-shaped detachably attached to the filter mounting part of the mouth
And a filter for collecting dust.
The surface is the vertex at the connection with the filter mounting part.
By tilting downward in the relative direction of the intake port,
A space between the intake port of the dynamic blower and the top surface of the filter
And the lower part of the filter was collected
The weight of the dust makes contact with the bottom of the dust collecting container .

The second means is to remove the filter from the filter.
When the filter is attached to the attachment portion, the lower end of the inclination of the top surface of the filter is formed so as to be located slightly above the horizontal position facing the intake port of the dust container.

The third means is to project the intake port inward.
On the side wall of the dust collection container, and project from above the filter.
The shadow shape is opposite to the intake port with the intake port side concave.
Is formed in a substantially hexagonal shape with a convex side .

The fourth means is to protrude into the dust container.
The formation of the lower filter mounting portion of the intake port formed in a cormorants
Is within the projected range from the top side of the space is obtained by forming a wall of the dust container so as to be substantially filled.

[0014]

In the above first means, when dust accumulates inside the filter, the top surface of the filter is moved relative to the intake port.
Inclined downward in the direction, yet forces the space between the intake hole of the top surface and the electric blower for the weight of dusts
Since it is formed and prevents the volume of the lower part of the filter from expanding and lifting upward, it is possible to prevent the vacuum cleaner from being sucked in a sanitary manner without providing an air inlet cover. Therefore, there is no need to surround the filter with an expander, and the filter can be taken out when the waste is discarded by sliding the inner wall of the dust container, so that the usability is good without being caught by the expander.

On the other hand, since an expander is not required, a large volume around the inner wall of the dust container can be effectively used.
The dust collection volume of the filter can be increased.

Further, in the second means, the filter is pressed against the horizontal position opposite to the suction port of the dust collecting container by the suction flow, and the filter is suctioned while the space between the top surface of the filter and the suction hole of the electric blower is opened. Spreading with dust,
In addition, since the intake dust does not directly hit the top surface of the filter, the top surface is unlikely to be clogged, preventing the vacuum cleaner from sucking for a long time from the initial state where dust is not accumulated, and without the need for an expander Becomes

In the third means, the filter swells in a shape close to the inner wall of the cylindrical dust collecting container and does not forcibly push and expand like a rectangular parallelepiped. Low tear strength. In addition, the shape of the filter was equipped with an intake port that protruded inward
The inner shape of the dust container increased along Utame effective dust collection volume, yet while preventing snagging during extraction to avoid the filter mounting portion can take effective dust collection volume.

Further, the fourth means prevents the filter from bulging into the lower part of the filter mounting portion of the intake port as dust accumulates and getting into the filter, thereby preventing the filter from being caught by the overhanging mounting portion during removal.

[0019]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 6, reference numeral 1 denotes a main body of the vacuum cleaner, 2 denotes an installation pipe portion of a vinyl chloride pipe, an insertion port 3 provided at the end or in the middle thereof, and a front end connected to the insertion port 3. The main body 1 has a suction hose 6 to which the extension pipe 4 and the cleaning nozzle 5 can be connected, and an electric blower 8 which is electrically connected to the suction hose 6 via the outlet 3 by a switch 7 and which stops operation. The dust collecting container 9 detachably formed on the main body 1 is provided with an intake port 10 connected to the pipe section 2 at an upper portion of the container, and a filter mounting portion 11 of the intake port 10 is provided with a detachable collecting port. A bag-like filter 12 for dust is provided.

The filter 12 has a top surface 13 having a connection portion 14 with the attachment portion 11 as a top, and an intake port 10 of the dust collection container 9.
And a space is provided between the intake hole 15 of the electric blower 8 and the top surface 13 of the filter 12. Reference numeral 16 denotes a connection hose for connecting the piping section 2.

Next, the operation of the above configuration will be described. In FIG. 1, when the switch 7 provided on the suction hose 6 is turned on, the electric blower 8 is operated and the dust on the cleaning surface is drawn from the cleaning nozzle 5 to the extension pipe 4 by the vacuum pressure generated when the switch 7 provided on the suction hose 6 is turned on. Hose 6, outlet 3,
The air is sucked into the filter 12 in the dust container 9 through the pipe section 2, the connection hose 16, and the air inlet 10.

At this time, as shown in FIG. 2, due to the weight of the accumulated dust, a space is forcibly formed between the top surface 13 of the filter 12 and the intake hole 15 of the electric blower 8 due to the inclination of the top surface 13. In addition, the volume of the lower portion of the filter 12 is prevented from expanding due to dust and being lifted upward.

FIG. 3 shows an embodiment of the second means, in which the lower end A of the inclination of the top surface 13 of the filter 12 is located slightly above the horizontal position B of the suction port 10 of the dust container 9. It is formed so that. Therefore, the filter 12 is expanded horizontally by the intake air while the top surface 13 and the intake hole 15 of the electric blower 8 are opened, and since the intake dust does not directly hit the top surface 13, the top surface 13 is dusty. Clogging is less likely.

FIG. 4 shows an embodiment of the third means, in which the filter 12 is formed in a hexagonal shape in which the projection shape from above is concave on the intake port 10 side and convex on the relative side of the intake port 10. Since the filter 12 swells in a shape close to the inner wall of the cylindrical dust container 9 and expands into a cylindrical shape without difficulty, the tear resistance required as a material of the filter 12 is low. Further, the shape of the dust collecting container 9 more closely conforms to the shape of the dust collecting container 9, so that the effective dust collecting volume can be increased. .

FIGS. 5 and 6 show an embodiment of the fourth means, in which the wall 17 of the dust container 9 is formed so that the space below the filter mounting portion 11 substantially fills the projection range from above. did. Therefore, the filter 12 does not bulge into the lower portion of the filter mounting portion 11 as dust accumulates, and does not overhang and catch when the mounting portion 11 is taken out.

[0027]

As described above , claims 1 and 2 of the present invention are described.
According to the above-mentioned invention, since the intake hole cover and the expander are not required, the sanitary garbage disposal can be easily performed without trouble, the trash can be easily taken out without being caught by the expander, and the effective dust collection volume can be increased. Was. In addition, even without an expander, the effect of preventing the vacuum cleaner from stopping suction for a long time was further enhanced, and the ease of taking out the garbage was secured.

Further , according to the third aspect of the present invention, the strength required as a disposable filter can be reduced, the effective dust collection volume is large, and the filter can be easily taken out even when garbage is discarded.

Further , according to the invention of claim 4,
For example, the filter does not get caught in the lower part of the filter mounting portion of the intake port, thereby improving the take-out property when throwing away garbage.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional view of a vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a partial sectional view of the filter.

FIG. 3 is a partial cross-sectional view of a filter according to a second embodiment.

FIG. 4 is a plan view of a dust container and a filter according to a third embodiment.

FIG. 5 is a plan view of a dust container according to a fourth embodiment.

FIG. 6 is a partial sectional view of the same.

FIG. 7 is a partial sectional view of a conventional vacuum cleaner.

FIG. 8 is a plan view of the dust container and the filter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 4 Extension pipe 5 Cleaning nozzle 6 Suction hose 7 Switch 8 Electric blower 9 Dust container 10 Suction port 11 Attachment part 12 Filter 13 Top surface 14 Connection part 15 Suction hole 17 Wall

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A-52-129067 (JP, A) JP-A-59-178954 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47L 5/38 A47L 9/14

Claims (4)

(57) [Claims] 1. A suction hose to which an extension pipe or a cleaning nozzle can be connected at the tip, and an upper opening and a side wall having said suction hose.
A dust container with an intake port communicating with the hose, and an intake port
A built-in electric blower that opens downward, and
Body detachably attached to close the opening, and opening
A filter for the intake port
-A substantially bag-shaped dust collecting filter that is detachably attached to the mounting
A top surface of the filter.
The connection part with the Luther attachment part is the top and the
Inclined downward in the direction of
Ensure a space between the pores and the top of the filter,
Furthermore, the lower part of the filter is the weight of the collected dust.
An electric vacuum cleaner in contact with the bottom of the dust container . 2. A filter is attached to a filter mounting portion.
2. The vacuum cleaner according to claim 1 , wherein the lower end of the inclination of the top surface of the filter is positioned slightly above the horizontal position of the intake port of the dust container when the filter is closed. 3. The dust collection container has a suction port protruding inward.
Provided on the side wall, the projected shape from above the filter,
The intake side is concave and the side opposite to the intake is convex.
Vacuum cleaner according to claim 1 or 2, wherein forming a substantially hexagonal Te. The 4. A wall of the dust container so as to substantially fill the inside of the projection range of from above side of the space formed below the filter mounting portion of the intake port provided so as to protrude inside the dust container The vacuum cleaner according to claim 1 or 2 , wherein the vacuum cleaner is formed.