JP4172301B2 - Vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electric vacuum cleaner having a dust collecting filter for collecting fine dust between an electric blower and a dust collecting case.
[0002]
[Prior art]
Conventionally, this type of vacuum cleaner is already well known (see, for example, Patent Document 1).
[0003]
This is because when the electric blower is operated, air containing dust is centrifuged in the dust collection case. The separated dust is accumulated in the dust collecting case, and the separated air is discharged to the outside of the cleaner body through the air inlet having the mesh filter and the dust collecting filter.
[0004]
[Patent Document 1]
JP-A-2002-528
[Problems to be solved by the invention]
However, in such a conventional vacuum cleaner, when the amount of dust collection increases, the airflow in the dust collection case is disturbed, and fine dust leakage from the intake port provided with the mesh filter increases. Then, the leaked fine dust adheres only to the dust collection filter portion corresponding to the projected area of the intake port. Therefore, the dust collection filter is partially clogged early and the suction force is reduced, and fine dust leaks from the side of the dust collection filter without passing through the dust collection filter, and enters the electric blower. There was a problem that caused the failure.
[0006]
An object of the present invention is to solve the above-mentioned problems, and to provide a clean and easy-to-use vacuum cleaner that maintains a suction force by collecting fine dust reliably and efficiently with a dust collection filter. To do.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, a vacuum cleaner of the present invention is provided between a plurality of air intakes that connect a dust collection storage chamber of a dust collection case and an electric blower, and a dust collection filter that covers the plurality of air intakes. The filter housing chamber is provided with a rib body that supports the dust collection filter and forms a space .
[0008]
As a result, fine dust leaking from multiple inlets is uniformly and reliably collected on the entire surface of the dust collection filter due to the presence of space, and the collection limit of fine dust in the dust collection filter increases. Fine dust can be reliably and efficiently collected by the dust collecting filter, and the suction power is maintained, making it clean and easy to use. In addition, it is possible to reliably provide a space between the plurality of air inlets and the dust collection filter.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 includes a vacuum cleaner body having a built-in electric blower that emits suction air, and a dust collection case detachably provided on the vacuum cleaner body at an upstream side of intake of the electric blower. The dust case includes a dust collection storage chamber for storing dust, a plurality of intake ports that communicate the dust collection storage chamber and the electric blower, and a filter on the downstream side of the intake that stores a dust collection filter that covers the plurality of intake ports A storage chamber; a communication intake port that communicates the filter storage chamber and the electric blower; a space is provided between the plurality of intake ports and the dust collection filter; and the dust collection filter is disposed in the filter storage chamber. with the vacuum cleaner digits set the rib body forms a space to support the filter, fine dust leaked from a plurality of air inlet, the presence of space, is uniformly and reliably trapped on the entire surface of the dust collecting filter , Dust collecting filter Since the collection limit amount of the fine dust is increased, it is possible to collect reliably and efficiently fine dust in the dust collecting filter, sustained suction force, becomes a user-friendly clean. In addition, it is possible to reliably provide a space between the plurality of air inlets and the dust collection filter.
[0010]
The invention according to claim 2, by a vacuum cleaner digits set the rib body according to a position which partitions between the plurality of air inlet to claim 1, between a plurality of inlet filter collecting area balance Since the fine dust can be collected uniformly with one dust collecting filter, the suction force can be maintained.
[0011]
According to a third aspect of the present invention, a communication inlet for communicating the filter storage chamber according to the first aspect and the electric blower is provided at a position substantially perpendicular to the airflow direction passing through the dust collecting filter, and the rib body is provided with a plurality of rib bodies. By using a vacuum cleaner that is located between the air inlet and the communication air inlet and is provided approximately perpendicular to the air flow direction, fine dust leaking from the air inlets passes through the space without passing through the dust collection filter. The fine dust is reliably collected by the dust collection filter, and it is clean and easy to use.
[0012]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0013]
(Example 1)
FIGS. 1-6 shows the vacuum cleaner in Example 1 of this invention.
[0014]
As shown in FIG. 1, a vacuum cleaner main body 1 including an electric blower (not shown) that generates suction wind is a detachable collector from the vacuum cleaner main body 1 on the upstream side of the intake of the electric blower. A dust case 2 is provided. The dust collection case 2 is formed of a visibility member, and the inside can be confirmed from the outside. The dust collecting case 2 is connected to a suction tool 7 for sucking dust through a hose 5 with a hose joint 4, a hand handle 3, and an extension pipe 6. The vacuum cleaner main body 1 includes one front wheel caster 8 pivotally supported on the bottom surface, a pair of rear wheels 9 rotatably attached to both side surfaces of the rear of the vacuum cleaner main body 1, and a rear lower interior of the vacuum cleaner main body 1. And a secondary battery (not shown) for supplying power to the electric blower. Furthermore, the cleaner body 1 is equipped with a lid 1a that can be freely opened and closed, and covers the dust collecting case 2 when the lid 1a is closed. The hose 5 described above is connected to the lid 1a and guides suction air to the dust collecting case 2.
[0015]
Next, the configuration of the dust collection case 2 will be described in detail.
[0016]
As shown in FIG. 2 to FIG. 6, the dust collection case 2 has a dust collection case main body 10, a substantially disc-shaped frame 14 that can be attached to and detached from the dust collection case main body 10, and the dust collection case main body 10. An upper lid 15 that can be freely opened and closed by a pivoting operation, a packing 16 that is bonded to the outer periphery of the frame body 14 and air tights the dust collecting case body 10 and the upper lid 15, and is formed of a soft material such as an elastomer, and a frame body 14 and a filter storage chamber 14a (FIG. 6) formed between the upper cover 15 and a dust collection filter 17 that covers the frame 14 and is mounted on the lower surface of the dust collection case body 10 so that it can be opened and closed. And a lower lid 18 that can dispose of dust. The side wall of the filter storage chamber 14a is made of a soft material, and air tightness between the dust collection filter 17 and the side wall of the filter storage chamber 14a is reliably performed.
[0017]
As shown in FIG. 5, the dust collecting case body 10 introduces a suction air containing dust from the hose 5 through the inlet 26, and centrifuges it as indicated by an arrow. A second centrifuge 12 and a depositing unit 13 for storing the centrifuge dust are provided. At the same time, a mesh filter 27, a coarse mesh filter 28, and a fine dust chamber 29 are provided.
[0018]
As shown in FIGS. 2 and 4, the frame body 14 includes a first air inlet 19 that communicates with the first centrifuge unit 11 and the second centrifuge unit 12, and a second air channel that communicates with the deposition unit 13. , A plurality of ribs 21 having a height of about 2 mm arranged radially from the first inlet 19, and a plurality of ribs having a height of about 2 mm arranged in an arc near the end of the dust collection filter 17. 22. The dust collection filter 17 is supported by the rib bodies 21 and 22, and a space A (FIG. 6) is provided between the plurality of intake ports 19 and 20 and the dust collection filter 17. Due to the presence of the space A, it is considered that the leaked fine dust is uniformly and reliably collected on the entire surface of the dust collection filter 17. The space A is surely provided by the rib bodies 21 and 22, but may be formed by other means regardless of these rib bodies. In addition, by providing at least one of the rib bodies 21 and 22 at a position that partitions the plurality of 19 and 20, the filter collection area balance between the plurality of intake ports 19 and 20 can be adjusted. It is possible to uniformly collect fine dust with the individual dust collection filters 17.
[0019]
As shown in FIGS. 2 and 5, the upper lid 15 has a communication intake port 23 communicating with the electric blower 29 and the filter storage chamber 14 a at a position substantially perpendicular to the airflow direction passing through the dust collection filter 17. Provided. Further, a rib body 24 having substantially the same shape as the rib body 22 is positioned between the plurality of intake ports 19 and 20 and the communication intake port 23, and is provided substantially perpendicular to the airflow direction. The rib body 24 sandwiches the dust collection filter 17 with the rib body 22, and comes into contact with the intake downstream side of the dust collection filter 17, so that a space B is formed between the communication intake port 23 and the dust collection filter 17. (FIG. 6) is formed. Because of this space B, the entire area of the dust collection filter 17 can be sucked from the plurality of air inlets 19 and 20, and the suction force can be improved. The space B is surely provided by the rib body 24, but it may be formed by other means regardless of the rib body as in the case of the space A. In particular, the rib bodies 22 and 24 prevent floating due to suction at the end of the dust collection filter 17 where fine dust is liable to leak, and collect fine dust by passing all the intake air through the dust collection filter 17. Further, the outer shell 25 of the upper lid 15 is subjected to surface processing such as embossing so as not to impair the design and make the dust collecting filter 17 unnoticeable from the outside, improving the appearance cleanliness.
[0020]
The operation of the above configuration is as follows.
[0021]
As shown in FIG. 5, the suction air containing dust sucked from the inlet 26 swirls along the inner wall of the dust collecting case body 10 in the first centrifugal separator 11 and has a large volume and mass due to the centrifugal separation action. Heavy dust a and light fine dust b with little centrifugal action. The separated and heavy dust a having a large volume is accommodated in the accumulation portion 13 and is sucked by the first air inlet 19 through the mesh filter 27, and thus is accumulated from the right end portion of the mesh filter 27. The accumulated dust also acts as a dust collecting filter, but fine dust finer than the mesh filter 27 passes through the mesh filter 27 and passes through the second air inlet 20 communicating with the filter storage chamber 14a.
[0022]
On the other hand, the fine dust b with little centrifugal action passes through the coarse mesh filter 28 and is subjected to the second centrifugal separation by the second centrifugal separator 12. The fine dust thus centrifuged is accumulated in the fine dust chamber 29, and only fine fine dust that could not be centrifuged passes through the first air inlet 19 communicating with the filter storage chamber 14a.
[0023]
As shown in FIG. 6, the fine dust leaked from the plurality of air inlets 19 and 20 is uniformly and reliably collected on the entire surface of the dust collection filter 17 due to the presence of the space A, and the fine dust in the dust collection filter 17 is collected. Therefore, the dust collection filter 17 can reliably and efficiently collect fine dust, and the suction force is maintained, which is clean and easy to use. In addition, the amount of fine dust leakage from the first air inlet 19 is reduced by the centrifugal action twice, the amount of fine dust adhering to the dust collection filter 17 for a certain period is small, the suction force is maintained, and maintenance is performed. The number of times can be reduced.
[0024]
Further, since the space B is provided between the communication intake port 23 and the dust collection filter 17, the entire area on the intake downstream side of the dust collection filter 17 can be sucked by the communication intake port 23, and the suction force can be improved. Further, since the rib bodies 22 and 24 are formed in substantially the same shape in the vicinity of the end of the dust collection filter 17 and the dust collection filter 17 is sandwiched between the rib bodies 22 and 24, the space A is provided on both upstream and downstream sides of the dust collection filter 17. , B are provided, and at the same time, the end of the dust collection filter 17 is prevented from being lifted by suction, and fine dust leakage from the end can be reliably prevented.
[0025]
In addition, since the outer periphery of the frame body 14 is covered with a packing 16 formed of a soft material elastomer, air tightness with the side wall of the dust collection filter 17 can be reliably performed, and the fineness from the end of the dust collection filter can be achieved. Dust leakage can be prevented more reliably.
[0026]
(Example 2)
Next, the vacuum cleaner in Example 2 of this invention is demonstrated using FIG. 7, FIG. Since the basic configuration of the electric vacuum cleaner is the same as that of the first embodiment, only differences will be described.
[0027]
As shown in FIG. 7, the frame body 14 includes two rib bodies 30 and 31. The rib body 30 has a height of about 2 mm that divides the first air inlet 19 and the second air inlet 20, and the rib body 31 is in a position substantially perpendicular to the direction of airflow passing through the dust collection filter 17. The height is about 2 mm provided between a certain communication inlet 23 and the first inlet 19 and the second inlet 20.
[0028]
As shown in FIG. 8, the dust collection filter 17 is formed by forming a portion covering the first air inlet 19 with a high-density material 32 having a high density, and forming a portion covering the second air inlet 20 with a low density. It is formed of a density material 33, and two members having different densities are integrally molded.
[0029]
The operation of the above configuration will be described.
[0030]
Since the rib body 30 is provided at a position that divides the first air inlet 19 and the second air inlet 20, fine dust leaking from the two air inlets 19 and 20 is not mixed, and a relatively small amount of dust leaks. The dust collection filter area covering the first intake port 19 with a small amount of dust can be reduced, the dust collection filter collection area of the second intake port 20 having a relatively large amount of fine dust leakage can be increased, and each balance can be adjusted. Since fine dust can be uniformly collected by the individual dust collection filters 17, the suction force can be maintained.
[0031]
In addition, the rib body 31 can prevent fine dust leaking from the first air inlet 19 and the second air inlet 20 from flowing through the space A to the vicinity of the air inlet 34 without passing through the dust collection filter 17. In addition, since it passes through the dust collecting filter 17, it is clean and can be improved in usability.
[0032]
In addition, the dust collection filter 17 is formed of a high density material 32 that covers the first air inlet 19 and a portion that covers the second air inlet 20 is formed of the low density material 33 having a low density. Without reducing the suction of the first air inlet 20, the fine centrifugally separated fine dust leaking from the first air inlet 19 can be reliably collected by the high-density material 32, and it is possible to improve cleanliness and usability.
[0033]
Further, since the two members having different densities are integrally molded, fine dust leakage from the interface between the high density material 32 and the low density material 33 is eliminated, and filters having different densities can be handled and maintained at the same time, thereby improving usability.
[0034]
(Example 3)
Next, the vacuum cleaner in Example 3 of this invention is demonstrated using FIG. Since the basic configuration of the electric vacuum cleaner is the same as that of the first embodiment, only differences will be described.
[0035]
As shown in the drawing, in the dust collection filter 17, a portion covering the first air inlet 19 is formed of a low density material 33 having a low density, and a portion covering the second air inlet 20 is formed by a high density material 32 having a high density. Formed with. Others are the same as in the second embodiment.
[0036]
The operation of the above configuration will be described.
[0037]
The suction force is improved by using the low-density material 33 on the side of the first air inlet 19 with a relatively small amount of fine dust leakage due to the centrifugal separation action, and the side of the second air inlet 20 with a relatively large amount of fine dust leakage is provided. By using the high-density material 32, dust can be reliably collected, and it is possible to improve cleanliness and convenience.
[0038]
【The invention's effect】
As described above, according to the vacuum cleaner of the present invention, fine dust leaking from a plurality of air inlets is uniformly and reliably collected on the entire surface of the dust collection filter due to the presence of the space. Since the collection limit of fine dust increases, fine dust can be reliably and efficiently collected by the dust collection filter, and the suction force is maintained, making it clean and easy to use.
[Brief description of the drawings]
FIG. 1 is an external view of a vacuum cleaner in Embodiment 1 of the present invention. FIG. 2 is an exploded perspective view of a dust collecting case of the vacuum cleaner. FIG. 3 is a plan view of a frame of the vacuum cleaner. ] Bottom view of the top cover of the vacuum cleaner [FIG. 5] Plan view of the dust collecting case main body of the vacuum cleaner [FIG. 6] Cross-sectional view of the main part of the dust collecting case of the vacuum cleaner [FIG. FIG. 8 is a plan view of a dust collecting filter of the vacuum cleaner according to the second embodiment. FIG. 9 is a plan view of a dust collecting filter of the vacuum cleaner according to the third embodiment of the present invention. Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Dust collection case 10 Dust collection case main body 11 1st centrifuge part 12 2nd centrifuge part 13 Accumulation part 14 Frame 15 Upper cover 16 Packing 17 Dust collection filter 19 1st inlet 20 20 2nd air intake Port 21, 22, 24, 30, 31 Rib body 23 Communication inlet 25 Outer shell 32 High-density material 33 Low-density material 34 Near the inlet A, B space

Claims (3)

A vacuum cleaner body having a built-in electric blower that emits suction air; and a dust collection case detachably provided on the vacuum cleaner body on the upstream side of the intake of the electric blower, the dust collection case collecting dust A dust storage chamber, a plurality of intake ports communicating with the dust collection storage chamber and the electric blower, a filter storage chamber on the downstream side of the intake air storing a dust collection filter covering the plurality of intake ports, and the filter storage chamber; A rib that communicates with the electric blower, provides a space between the plurality of air inlets and the dust collection filter, and a rib that supports the dust collection filter and forms a space in the filter storage chamber vacuum cleaner was only set the body. The vacuum cleaner of claim 1 in which a rib member in a position which partitions between the plurality of air inlet. A communication inlet for communicating the filter storage chamber and the electric blower is provided at a position substantially perpendicular to the direction of the airflow passing through the dust collecting filter, and the rib body is positioned between the plurality of inlets and the communication inlet, so that the direction of the airflow is substantially the same. The vacuum cleaner according to claim 1 , which is provided vertically.

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