JP2003135334A - Dust cup and vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust cup and a vacuum cleaner which can prevent the clogging of filter bodies provided above a partition wall. SOLUTION: In the dust cup, a connection opening 55A and an upper opening 62 for taking air into the body 51 of a container are formed at an upper part of the body 51 of the container, the upper opening 62 is provided with the filter body 70 and air taken into the body 51 of the container from the connection opening 55A is sucked outside the body 51 of the container through the filter body 70. A cyclone container part 52 which makes the air sucked from the connection opening 55A flow in a vortex and a housing container part 53 for housing dusts therebelow are formed on the body 51 of the container and a central opening 59 is formed in the bottom wall 58 of the cyclone container part 52. A guide port is provided for guiding the air taken into the cyclone container part 52 in a vortex into the housing container part 53 and the air guided into the housing container part 53 is sucked into the cyclone container part 52 and outside the body 51 of the container through the filter body 70.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust cup used in a cyclone type electric vacuum cleaner and an electric vacuum cleaner equipped with the dust cup.

[0002]

2. Description of the Related Art Conventionally, an electric vacuum cleaner shown in FIG. 14 has been known (see Japanese Patent Laid-Open No. 2001-29288).
In FIG. 14, reference numeral 1 denotes a dust cup connected to the rear portion of the extension pipe 2, and the dust cup 1 is connected to the hand operation pipe 3. One end of a hose 4 is connected to the hand operation pipe 3, and the rear end of the hose 4 is connected to the main body 5. An electric blower 6 is provided in the main body 5.

In this vacuum cleaner, the air sucked from the suction port body 7 is sucked into the dust cup 1 through the extension pipe 2, and the air sucked into the dust cup 1 is at the operation pipe 3 at hand.
The air is sucked into the main body 5 via the hose 4.

The dust cup 1 is, as shown in FIG.
It has a first dust collecting chamber 1A and a second dust collecting chamber 1B formed therebelow, and the first dust collecting chamber 1A and the second dust collecting chamber 1B are vertically divided by a partition wall 8. The partition wall 8 has openings 8A formed in a mesh shape as shown in FIG.
Is formed to the left of the center position of.

The upper part of the dust cup 1 and the rear part of the extension pipe 2 are connected by a connecting pipe 9, and the connecting pipe 9 connects the extension pipe 2 and the dust cup 1. Also,
The ceiling wall 1T of the dust cup 1 is penetrated by one end side of the hand operation pipe 3, and a mesh-shaped exhaust port 3a is formed on the lower peripheral wall of the hand operation pipe 3 so that the hand operation pipe 3 The lower end 3b is closed. The exhaust port 3a is located below the connecting port 9A of the connecting pipe 9.

When air is introduced into the first dust collecting chamber 1A of the dust cup 1 from the connecting port 9A of the connecting pipe 9, the air swirls in the first dust collecting chamber 1A to separate the dust. . The fine dust drops from the opening 8A of the partition wall 8 into the second dust collecting chamber 1B. The coarse dust is collected in the first dust collecting chamber 1A. The air from which dust has been removed is the exhaust port 3a of the operation pipe 3 at hand
Is sucked into the main body 5 via the hand operation pipe 3 and the hose 4.

[0007]

In the dust cup 1 constructed as described above, the first dust collecting chamber 1A and the second dust collecting chamber 1B are formed in the partition wall 8 and open in the vertical direction. Since they are only communicated with each other through the opening 8A, the vortex in the first dust collecting chamber 1A hardly enters the second dust collecting chamber 1B, and the wind does not substantially flow into the second dust collecting chamber 1B. Has become. Therefore, the dust collection to the second dust collection chamber 1B largely depends on the weight of the dust. Moreover, when a vortex is generated in the first dust collecting chamber 1A, fine dust is rolled up by this vortex, and in a state where no vortex is generated, the dust accumulated on the partition wall 8 blocks the opening 8A. Become. Therefore, even fine dust is hardly collected in the second dust collection chamber 1B, and most of them are collected in the first dust collection chamber 1A.

As described above, in the dust cup 1 having the above structure, the first dust collecting chamber 1 is provided, although the second dust collecting chamber 1B is provided.
A lot of fine dust accumulates in A, so the first dust collection chamber 1A
There is a problem that these are soared by the vortex inside and the exhaust port 3A formed in a mesh shape is likely to be clogged by the soared dust.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a dust cup capable of preventing clogging of a filter body provided in an upper opening of a container body, and this dust cup. To provide an electric vacuum cleaner.

[0010]

In order to achieve the above object, the invention of claim 1 is such that an intake port for sucking air into the container body and an upper opening are formed in the upper part of the container body, and the filter is provided in the upper opening. A dust cup in which a body is provided, and the air sucked into the container body from the intake port is sucked out of the container body through the filter body, and the air sucked in from the intake port to the container body. A cyclone container part that flows in a vortex, and a container part that stores dust under the cyclone container part is formed, and an opening that connects the inside of the cyclone container part and the inside of the container part is formed in the bottom wall of the cyclone container part. An opening is formed in the cyclone container along the circumferential direction, and an introduction port is provided for introducing air that is a vortex in the cyclone container part into the storage container part, and is introduced into the storage container part. Characterized in that air is sucked into the container body out through the cyclone container portion and the filter member from said opening.

The invention of claim 2 is characterized in that a filter is attached to the opening.

A third aspect of the invention is characterized in that a rib surrounding the opening is provided on the bottom wall of the cyclone container part.

A fourth aspect of the present invention is an electric vacuum cleaner comprising the dust cup according to any one of the first to third aspects.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an electric vacuum cleaner having a dust cup according to the present invention will be described below with reference to the drawings.

In FIG. 1, 20 is a cleaner body,
One end of a hose 21 is detachably connected to the cleaner body 20, and a hand operation pipe 22 is provided at the other end. An extension pipe 23 is detachably connected to the hand operation pipe 22, and a suction port body 24 is detachably connected to a tip end portion of the extension pipe 23. The hand operation tube 22 is provided with an operation section 22A, and the operation section 22A is provided with an operation switch (not shown).

As shown in FIGS. 2 and 3, the cleaner body 20 includes a body case 30, a dust collecting container (dust cup) 50 detachably mounted on the body case 30, and a rear portion of the body case 30. And a lid 40 that is hinged to and can be opened and closed in the vertical direction.

The main body case 30 has an electric part 34 having a built-in electric blower 33, and a dish-shaped mounting part 35 protruding forward is provided at the lower part of the front surface of the electric part 34. The dust container 50 is detachably mounted on the mounting portion 35.

Further, a plurality of exhaust holes 36 are formed on both sides of the front surface of the electric section 34, and the exhaust holes 36 communicate with the exhaust port 33A of the electric blower 33 via an exhaust air passage (not shown). The air exhausted from the exhaust port 33A of the blower 33 is exhausted to the outside from the exhaust hole 36 via the exhaust air passage.

An intake port 37 is formed on the front side of the upper surface of the electric part 34, and an intake air passage 38 extending downward from the intake port 37 is formed inside the electric part 34. This intake air passage 3
The lower part of 8 communicates with the suction port 33B of the electric blower 33. Further, the intake port 37 is provided with a filter 39.

The lid 40 has a dome-shaped top plate 41 formed in a substantially elliptical shape in plan view, and a peripheral wall 42 is integrally formed around the top plate 41. A connection pipe 44 having a connection port 43 for detachably connecting the dust collecting hose 21 is provided at the front portion of the peripheral wall 42.

Inside the lid 40, a rear opening 45 of the connecting pipe 44, an intake opening 46 having a seal member S1 for sealing a rib 63 of a dust collecting container 50, which will be described later, attached to the periphery thereof, and a main body case 30 are provided. An opening 47 having a seal member S2 that seals the intake port 37 attached to the periphery thereof and an air passage 48 that communicates the intake opening 46 with the opening 47 are provided.

As shown in FIGS. 4 to 6, the dust collecting container 50 has a cylindrical container body 51, a cyclone container portion 52 formed on the container body 51, and a container body 51. An accommodating container portion 53 formed in a lower portion and mainly accommodating dust, a filter body 70 detachably attached to an upper portion of the cyclone container portion 52, an intake portion 55 for sucking air into the cyclone container portion 52, Handle part 56 provided on the left side (in FIG. 5) of the container body 51
And so on.

The suction pipe 55 has a connecting pipe 4 for the lid 40.
4 is a connection opening (intake port) 55 connected to the rear opening 45.
A and the cyclone container portion 5 as shown in FIGS. 7 and 8.
A guide air passage 57 is formed along the outer side of the second peripheral wall 52A and connects the connection opening 55A with the inside of the cyclone container portion 52. The guide air passage 57 is inclined so as to be lowered toward the downstream side, and the inlet 57A for introducing air from the guide air passage 57 into the cyclone container portion 52 is located below the connection opening 55A.

Bottom wall (partition wall) 5 of the cyclone container portion 52
A circular central opening 59 is formed in the central portion of 8, and a net filter NF which is a mesh filter is attached to the central opening 59. Also, the cyclone container part 5
2 has a peripheral wall 52B located outside the peripheral wall 52A with respect to the central portion of the bottom wall 58.
As shown in FIGS. 8 and 9, an inlet 60 is formed along the circumferential direction at a step portion with B. The inlet 60 faces the direction of the vortex formed in the cyclone container portion 52, and a part 58a of the bottom wall 58 in front of the inlet 60 is inclined downward.

Further, as shown in FIG. 6, a circular upper opening 62 is formed in the upper wall 61 of the cyclone container portion 52, and an annular rib 63 is formed around the upper surface of the upper wall 61, and this rib 63 is formed. Surrounds the upper opening 62, and the area surrounded by the rib 63 is larger than the area of the upper opening 62. The upper wall 61 and the rib 63 form a mounting portion 65 for mounting the filter body 70.

A bottom plate 51A is attached to the bottom of the container body 51, that is, at the bottom of the storage container portion 53 so as to be openable and closable around a shaft 64, and is stored in the storage container portion 53 by opening the bottom plate 51A. The dust that is thrown away is thrown away. When the bottom plate 51A is closed as shown in FIG. 5, it is locked by the hook portion F, and this lock is unlocked by operating an operation button (not shown) provided on the upper portion of the handle portion 56. The lock is released by a lock release mechanism (not shown).

As shown in FIGS. 10 and 11, the filter body 70 has an upper filter 72 mounted on a filter mounting frame 71 and net filters 73, 73a.

The filter mounting frame 71 has a flat plate-like filter receiving portion 74 that is inclined downward to the right, an annular rib 75 formed around the filter receiving portion 74, and a central portion of the filter receiving portion 74. A guide air passage portion 78 protruding to the
It has a frame body 76 formed in the lower part of the guide air passage portion 78. The guide air passage portion 78 is formed in a funnel shape so that the diameter becomes smaller as it goes downward.

The frame body 76 has two ring frames 76A, 76B arranged vertically and a connecting frame 76C connecting the ring frames 76A, 76B. Then, the net filter 73 is stretched in a tubular shape along the circumference of the ring frames 76A and 76B, and the net filter 73a is also stretched on the lower surface of the ring frame 76B.

The upper filter 72 is placed on the filter receiving portion 74, and the grid-like lid frame 8 is placed on the upper filter 72.
0 is removably fitted in the annular rib 75. Thereby, the upper filter 72 is detachably fixed.

Then, the filter receiving portion 7 of the filter body 70
4 is fitted into the rib 63 of the container body 51 and the filter body 70 is mounted on the mounting portion 65, the net filters 73 and 73a project downward from the upper opening 62 of the container body 51 as shown in FIG. The container is placed in the container 52.

Next, the operation of the electric vacuum cleaner configured as described above will be described.

First, as shown in FIGS. 4 and 5, the dust container 50 having the filter body 70 mounted thereon is mounted on the mounting portion 35 of the main body case 30 as shown in FIG. 2 and the lid body 40 is closed. . When the lid 40 is closed, as shown in FIG.
The rib 63 of the dust container 50 is connected to the intake opening 46 of the lid 40 via the seal member S1, and the rear opening 45 of the connection pipe 44 of the lid 40 is connected to the connection opening 55A of the intake portion 55 of the dust container 50. Connected. Further, the opening 47 of the lid 40 and the intake port 37 of the main body case 30 are connected via the seal member S2.

When the dust container 50 is set in the main body case 30, the hose 21 is connected to the connection port 43 of the lid 40. Then, when a switch (not shown) of the operation unit 22A is operated, the electric blower 23 is driven. By driving the electric blower 23, the intake air passage 38 of the main body case 30 has a negative pressure. This negative pressure passes through the intake port 37 of the main body case 30 and the opening 47 of the lid 40, and the air passage 48 to the intake port 4.
6, the air in the cyclone container portion 52 is sucked from the intake opening 46 through the upper opening 62 of the dust collecting container 50, and the inside of the cyclone container 52 becomes a negative pressure. Due to this negative pressure, dust is sucked together with air from the suction port body 24, and the sucked dust and air are extended.
It is sucked into the connection port 43 of the lid 40 via the hose 3 and the hose 21. The dust and air sucked into the connection port 43 are introduced into the cyclone container portion 52 of the dust collecting container 50 through the guide air passage 57 of the intake portion 55 of the dust collecting container 50.

The air and dust introduced into the cyclone container part 52 flow as a vortex along the peripheral wall in the cyclone container part 52, and when the vortex is flowing, the dust and the cyclone container part It drops to the outer peripheral side of the bottom wall 58 of 52. Further, a part of the air has a reduced flow velocity and is sucked from the net filters 73 and 73a of the filter body 70 and flows in the arrow direction (see FIG. 3).

On the other hand, the dust that has dropped onto the bottom wall 58 of the cyclone container 52 is vortexed into the cyclone container 52 from the inlet 60 that opens along the circumferential direction into the container 53.
Will be introduced inside. In this way, the cyclone container part 5
The dust that has fallen on the bottom wall 58 of the second is the cyclone container part 52.
Since a part of the vortex generated inside is introduced into the storage container part 53, dust other than dust that cannot be introduced from the introduction port 60 is not accumulated on the bottom wall 58 of the cyclone container part 52, and therefore the net filter It becomes difficult for the 73, 73a to be clogged.

The air introduced together with the dust from the introduction port 60 becomes a vortex and flows along the peripheral wall inside the container 53. During this vortex, air and dust are also separated in the storage container portion 53, and the separated dust is also accumulated on the bottom plate 51A of the storage container portion 53.

Since the dust accumulated on the bottom plate 51A is compressed by the vortex, the dust collecting capability of the storage container portion 53 is improved.

The air that has become a vortex in the accommodating container portion 53 is sucked into the net filter 73a of the filter body 70 through the net filter NF of the central opening 59 of the bottom wall 58 of the cyclone container portion 52 after the flow velocity has dropped. Will be done. The air taken into the net filter 73a passes through the guide air passage 75 of the filter body 70 and the upper filter 72, and the lid body 40
The air is taken into the intake opening 46 of. The air sucked into the intake opening 46 passes through the air passage 48 of the lid 40 and opens the opening 4.
Air is sucked into the electric blower 23 via the air intake port 7 of the main body case 30 and the air blower 7.

By the way, since the cyclone container portion 52 and the accommodating container portion 53 of the dust collecting container 50 are partitioned by the bottom wall 58 and the net filter NF is attached to the central opening 59 of the bottom wall 58, the accommodating container. The dust accumulated in the portion 53 is prevented from re-floating and flowing into the cyclone container portion 52. Therefore, the filter body 7
The net filters 73, 73a of 0 and the upper filter 72 are less likely to be clogged.

12 and 13 show another dust collecting container. The dust collecting container 82 shown in FIG. 12 is located on the upper surface of the bottom wall 58 of the cyclone container portion 52 and around the opening 59 thereof. A tubular rib 81 is provided, and the net 81 a is surrounded by the rib 81.

This is the bottom wall 58 of the cyclone container 52.
When the thread scraps and the like that have fallen onto the air flow on the air flow with a slow flow rate and move to the central portion of the bottom wall 58, the thread scraps are sucked by the net filter 73a, and the net filter 73a.
The rib 81 prevents the thread scraps from moving to the central portion of the bottom wall 58 and thus prevents the net filter 73a from being clogged.

A dust collecting container 90 shown in FIG. 13 is provided with a cylindrical rib 91 on the lower surface of the bottom wall 58 of the cyclone container portion 52 and around the bottom wall 58. The ribs 91 prevent the cyclone container portion 52 from moving to the central portion of the bottom wall 58 along the lower surface of the bottom wall 58 and entering the opening 59 of the bottom wall 58, thereby clogging the net filter 73a. It is intended to prevent.

The dust collecting container 82 shown in FIG. 12 and FIG.
In FIG. 90, ribs 81 and 91 are provided separately on the upper surface and the lower surface of the bottom wall 58, but both ribs 81 and 91 are provided on the bottom wall 58.
91 may be provided.

In the above embodiment, the cyclone container portion 52
The net filter NF is attached to the central opening 59 of the bottom wall 58 of the above. However, even if the net filter NF is not attached, the bottom wall 58 separates the cyclone container portion 52 and the storage container portion 53 from each other. The clogging of 73, 73a is less likely to occur. Further, although the filter body 70 is provided with the net filters 73, 73a and the upper filter 72, either one may be provided.

[0046]

As described above, according to the invention of claim 1, it is possible to prevent clogging of the filter body provided above the container body.

According to the invention of claim 2, it is possible to further prevent clogging of the filter body.

According to the invention of claim 3, it is possible to prevent dust such as lint from moving to the central opening of the partition wall.
As a result, it is possible to prevent clogging of the filter body due to thread scraps or the like.

According to the invention of claim 4, it is possible to provide a vacuum cleaner which can obtain the effects of claims 1 to 3.

[Brief description of drawings]

FIG. 1 is a perspective view showing an electric vacuum cleaner equipped with a dust container according to the present invention.

FIG. 2 is an explanatory diagram showing a state in which a lid of the electric vacuum cleaner body is opened.

FIG. 3 is a cross-sectional view showing a configuration of a cleaner body.

FIG. 4 is a perspective view showing a dust container according to the present invention.

5 is a cross-sectional view showing the structure of the dust container of FIG.

FIG. 6 is an exploded perspective view showing a state where the filter body is removed from the container body of the dust container.

FIG. 7 is a cross-sectional view showing the structure of a dust container.

FIG. 8 is an explanatory diagram showing the flow of air in the intake section and the cyclone container section.

FIG. 9 is a cross-sectional view showing a configuration of a container body.

FIG. 10 is a side view showing a filter body.

FIG. 11 is a cross-sectional view showing the structure of a filter body.

FIG. 12 is a cross-sectional view showing the configuration of a dust collecting container of another example.

FIG. 13 is a cross-sectional view showing the structure of a dust container according to another example.

FIG. 14 is an explanatory view showing a conventional electric vacuum cleaner.

FIG. 15 is a cross-sectional view showing the structure of a conventional dust cup.

FIG. 16 is an explanatory diagram showing a partition wall.

[Explanation of symbols]

51 container body 52 Cyclone container 53 Storage container section 55A connection opening (air intake) 59 Central opening 60 entrance 62 Upper opening 70 Filter body

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Masatoshi Tanaka             Toshiba Tec, 43 Horiyamashita, Hadano City, Kanagawa Prefecture             Hadano Factory Co., Ltd. (72) Inventor Hiroshi Yokoyama             Toshiba Tec, 43 Horiyamashita, Hadano City, Kanagawa Prefecture             Hadano Factory Co., Ltd. (72) Inventor Kiyoshi Ebe             Toshiba Tec, 43 Horiyamashita, Hadano City, Kanagawa Prefecture             Hadano Factory Co., Ltd. (72) Inventor Maaino Matsuno             Toshiba Tec, 43 Horiyamashita, Hadano City, Kanagawa Prefecture             Hadano Factory Co., Ltd. (72) Inventor Yoshihiro Tsuchiya             Toshiba Tec, 43 Horiyamashita, Hadano City, Kanagawa Prefecture             Hadano Factory Co., Ltd. F-term (reference) 3B062 AH02 AH05                 4D053 AA03 AB01 BA01 BB07 BC01                       BD04 CA01 CC04 CD23

Claims (4)

[Claims] 1. An intake port for inhaling air into the container body and an upper opening are formed in an upper part of the container body, and a filter body is provided in the upper opening so that the air sucked into the container body from the intake port is provided. A dust cup that is sucked to the outside of the container body through the filter body, wherein a cyclone container part that causes the air sucked from the intake port to flow in a swirl flow into the container body, and dust below the cyclone container part To form a storage container part for storing the, the bottom wall of the cyclone container part to form an opening for communicating the inside of the cyclone container part and the inside of the storage container part, the cyclone container is opened along the circumferential direction, the cyclone container An inlet for introducing air that is a vortex in the storage container portion into the storage container portion, and the air introduced into the storage container portion is introduced from the opening into the cyclone container portion and the fission chamber. A dust cup characterized by being sucked out of the container body via the filter body. 2. The dust cup according to claim 1, wherein a filter is attached to the opening. 3. The dust cup according to claim 1, wherein a rib surrounding the opening is provided on a bottom wall of the cyclone container part. 4. An electric vacuum cleaner comprising the dust cup according to any one of claims 1 to 3.