JP2004008378A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner of centrifugal type with improved quality, performance, and usability at low cost. <P>SOLUTION: A dust collection case 5 has a dust separating chamber 8 that centrifuges dust, a dust accommodating chamber 9 communicating with the dust separating chamber 8 and accommodating the dust centrifuged in the dust separating chamber 8, a first air intake part 21 communicating the dust separating chamber 8 with an electric blower 6, and a second air intake part 22 communicating the dust accommodating chamber 9 with the electric blower 6. A filter 13 covering both of the first and second air intake parts 21, 22 is provided on a downstream side of the air intake by the first and second air intake parts 21 and 22. A cleaner body can be miniaturized, its weight can be lightened, and the price can be reduced. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a centrifugal vacuum cleaner having a dust collection filter for collecting fine dust, particularly between a centrifugal separator and an electric blower.
[0002]
[Prior art]
The configuration of this type of conventional vacuum cleaner and dust collecting filter will be described with reference to FIGS. FIG. 7 shows the entire vacuum cleaner, in which a hose 2 is connected to a vacuum cleaner main body 1 having a built-in electric blower, and an extension pipe 4 to which a suction tool 3 is connected is connected. The dust collection case 5 is configured to be detachable from the cleaner body 1.
[0003]
As shown in FIG. 8, the cleaner main body 1 has a built-in electric blower 6, and the dust collecting case 5 is formed in a substantially cylindrical shape in the up-down direction. A dust separation chamber 8 for centrifugally separating the dust is formed, and a dust storage chamber 9 for storing the dust centrifugally separated in the dust separation chamber 8 is formed below. The dust separation chamber 8 and the dust storage chamber 9 communicate with each other on the outer peripheral side of the partition plate 7. The partition plate 7 is formed in a substantially disk shape, and is formed integrally with the mesh filter 10 in the conventional example. Above the dust collecting case 5 and the dust separating chamber 8, a filter 11 for collecting fine dust is formed. The hose 3 is connected to the connection part 12.
[0004]
Next, the operation and action will be described.
[0005]
The dust sucked together with the air from the suction tool 3 is carried to the main body 1 through the extension pipe 4 and the hose 2, and the air containing the dust is carried from the connection portion 12 to the dust separation chamber 8, where the dust is separated. The dust separated by centrifugation into dust and air is discharged from the outer periphery of the partition plate 7 into the dust storage chamber 9 and stored therein. The air separated in the dust separation chamber 8 is drawn into the electric blower 6 through the mesh filter 10 and the dust collecting filter 11, and then exhausted to the outside of the cleaner body 1.
[0006]
[Problems to be solved by the invention]
However, the configuration of the conventional dust collection case 5 is a centrifugal separation configuration, but the dust separation chamber 8 and the dust storage chamber 9 communicate with each other over a large area along the inner circumference of the dust collection case 5, and the amount of dust collection increases. Then, the airflow in the dust collecting case 5 is disturbed, the centrifugal separation performance is reduced, and fine dust leakage from the mesh filter 10 increases. Therefore, in order to obtain high dust collection performance, a large-sized and thick filter 11 must be used, which results in an increase in the size of the cleaner body 1 and an increase in price. Further, when the dust collector case 5 is operated with the dust collector case 5 removed from the cleaner body 1, dust enters the electric blower 6 and causes a malfunction.
[0007]
SUMMARY OF THE INVENTION An object of the present invention is to solve the conventional problems as described above and to provide a highly usable centrifugal-type vacuum cleaner with improved quality and performance at low cost.
[0008]
[Means for Solving the Problems]
SUMMARY OF THE INVENTION In order to solve the above-described problems, the present invention includes a main body having a built-in electric blower for generating a suction wind, and a dust collection case detachably formed on the main body on an upstream side of the electric blower. The case is a dust separation chamber for centrifugally separating dust, a dust storage chamber communicating with the dust separation chamber and storing dust centrifugally separated in the dust separation chamber, and communicating the dust separation chamber with the electric blower. A first air intake unit, a second air intake unit communicating the dust storage chamber with the electric blower, and a first air intake unit and the second air intake unit downstream of the air intake of the first air intake unit and the second air intake unit. A filter is provided to simultaneously cover the two intake sections.
[0009]
According to the above invention, the dust separation chamber and the dust storage chamber are partitioned in the dust collection case, so that the leakage of fine dust can be reduced, and the first suction unit and the second suction unit are connected to one filter. As a result, the vacuum cleaner itself can be reduced in size and weight, and the price can be reduced.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention includes a main body having a built-in electric blower for generating a suction wind, and a dust collecting case detachably formed on the main body on the upstream side of the intake of the electric blower. A dust separation chamber for centrifuging dust, a dust storage chamber communicating with the dust separation chamber and storing dust centrifugally separated in the dust separation chamber, and a first communication chamber for communicating the dust separation chamber with the electric blower. An intake unit, a second intake unit communicating the dust storage chamber with the electric blower, and the first intake unit and the second intake unit located downstream of the first intake unit and the second intake unit. A filter for simultaneously covering the parts is provided.
[0011]
According to the above invention, the dust separation chamber and the dust storage chamber are partitioned in the dust collection case, so that the leakage of fine dust can be reduced, and the first suction unit and the second suction unit are connected to one filter. As a result, the vacuum cleaner itself can be reduced in size and weight, and the price can be reduced.
[0012]
The invention according to claim 2 of the present invention is configured such that the filter is mounted on the cover body and then mounted on the dust collecting case, so that the filter can be securely fixed to the dust collecting case.
[0013]
According to a third aspect of the present invention, the filter having the frame is attached to the cover, and the frame is formed of a soft material. By passing through the filter, dust can be collected firmly.
[0014]
The invention according to claim 4 of the present invention is provided with a cutout portion in the filter, which can prevent the filter from being used by mistake in the opposite direction, and the dust already collected in the filter flows out, and This can prevent the air from being sucked into the blower and causing a failure.
[0015]
According to the invention of claim 5 of the present invention, the projection is provided so that the outer shape of the cover body is asymmetrical in the front-rear or left-right direction. It is possible to prevent the dust trapped in the air blower from flowing out and being sucked into the electric blower to cause a failure.
[0016]
According to a sixth aspect of the present invention, a filter is further provided on the downstream side of the intake of a filter that simultaneously covers the first intake section and the second intake section, and the filter is formed of another type of filter medium.
[0017]
The invention according to claim 7 of the present invention is a filter in which a filter that simultaneously covers the first intake unit and the second intake unit is improved in dust collection performance from a filter provided on the intake downstream side of the filter, A large amount of dust can be collected by the dust collection case, and the number of maintenance operations can be reduced.
[0018]
According to an eighth aspect of the present invention, a filter that simultaneously covers the first intake unit and the second intake unit has a lower dust collection performance than a filter provided on the intake downstream side of the filter. The dust collecting case is configured to collect fine dust with a filter behind the dust collecting case, so that the dust can be collected efficiently.
[0019]
According to a ninth aspect of the present invention, the filter that covers the first intake section and the second intake section at the same time has a pleated shape in the up-down direction. The dust collected by the vibration of the liquid is easily dropped, so that the number of maintenance operations can be reduced.
[0020]
According to a tenth aspect of the present invention, the filter that simultaneously covers the first intake unit and the second intake unit can be washed, and the dust collection case can be entirely washed and maintenance can be facilitated.
[0021]
【Example】
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0022]
(Example 1)
First Embodiment A first embodiment of the present invention will be described with reference to FIGS. The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted.
[0023]
As shown in the drawing, a main body 1 having a built-in electric blower 6 for generating a suction wind, and a dust collecting case 5 detachable from the main body 1 on the upstream side of the intake of the electric blower 6 are provided. A substantially cylindrical dust separation chamber 8 for centrifugally separating the sucked dust is provided in the front-rear direction, and a dust storage chamber 9 for storing the dust separated by the dust separation chamber 8 is provided below the dust separation chamber 8.
[0024]
The main body 1 has two intake units, a first intake unit 21 that communicates the dust separation chamber 8 and the electric blower 6 and a second intake unit 22 that communicates the dust storage room 9 and the electric blower 6. The first suction part 21 in the dust separation chamber 8 and the second suction part 22 in the dust storage chamber 9 are provided with a first filter 10a and a second filter 10b each having a mesh shape.
[0025]
On the downstream side of each of the mesh filters 10a and 10b, only one pleated third filter 13 is provided in the dust collection case 5 so as to cover the two intake portions. The partition 13 is provided with a partition wall 23 for separating the first intake section 21 and the second intake section 22 and is pneumatically separated. Further, a fourth filter 14 is further provided downstream of the third filter 13.
[0026]
Next, the operation and operation will be described.
[0027]
The dust sucked together with the air from the suction tool 3 is carried to the main body 1 through the extension pipe 4 and the hose 2, and the air containing the dust is carried from the connecting portion 12 to the dust separation chamber 8 through the intake passage 15 and the dust separation chamber. Dust and air are separated by centrifugation in the dust separation chamber 8. The separated dust is discharged from the communication port 16 into the dust storage chamber 9 and stored therein. The air separated in the dust separation chamber 8 passes through the first filter 10a, the first suction unit 21, the third filter 13, and the fourth filter 14, is sucked into the electric blower 6, and is exhausted from the main body 1 to the atmosphere. . The dust storage chamber 9 and the electric blower 6 are communicated with each other by a second suction unit 22, and are sucked also from the dust storage chamber 9, thereby increasing the flow rate of the suction air, increasing the dust separation efficiency, and providing the dust storage chamber 9 with the dust storage chamber 9. It is also possible to compress the dust that is stored.
[0028]
When the first intake section 21 and the second intake section 22 are separated from each other, it is necessary to use a separate filter. However, the first intake section 21 and the second intake section 22 are provided in the vertical direction, respectively. As a result, one filter can sufficiently perform the function. Further, the third filter 13 can be washed with water by removing the dust collecting case 5 from the main body 1.
[0029]
(Example 2)
A second embodiment of the present invention will be described with reference to FIGS. 3 and 4 are perspective views of the third filter 13 and the fourth filter 14, respectively.
[0030]
The third filter 13 and the fourth filter 14 are formed of different types of filter media (filter media have different flow path resistances), and the dust collection performance of the third filter 13 is improved over that of the fourth filter 14.
[0031]
The components having the same reference numerals as those in the first embodiment have the same structure, and the description is omitted.
[0032]
The operation and the operation will be described. The third filter 13 and the fourth filter 14 are made of different kinds of filter media, and the dust collection performance of the third filter 13 is made better than that of the fourth filter 14 so that the dust collection case is formed. 5 can collect most of the dust, and the performance can be maintained by maintenance of only the third filter 13 in the dust collection case 5 that can be easily maintained. Further, even if the dust collector case 5 is erroneously operated with the dust collecting case 5 removed, the dust is collected by the fourth filter 14 disposed downstream of the third filter 13 of the main body 1 and upstream of the electric blower 6. Accordingly, it is possible to prevent dust from entering the electric blower 6 and prevent the electric blower 6 from malfunctioning.
[0033]
On the other hand, the case where the third filter 13 and the fourth filter 14 are formed of different types of filter media (filter media have different flow path resistances), and the dust collecting performance of the fourth filter 14 is improved as compared with the third filter 13. explain.
[0034]
The operation and the operation will be described. The third filter 13 and the fourth filter 14 are formed of different types of filter media, and the dust collection performance of the fourth filter 14 is made better than that of the third filter 13, so that a large dust can be obtained. Is collected by the third filter 13 and fine dust is collected by the fourth filter 14, so that the dust can be efficiently collected.
[0035]
(Example 3)
Third Embodiment A third embodiment of the present invention will be described with reference to FIG. FIG. 5 is a perspective view of the third filter 13 and the cover 17.
[0036]
As shown in FIG. 5, a cutout portion is provided in a part of the third filter 13, the cover body 17, and the frame body 18, and after attaching the asymmetrically formed third filter 13 to the cover body 17, a dust collecting case is formed. 5.
[0037]
In the third filter 13, the frame 18 is made of an elastomer, and the pleated shape of the filter medium is formed in the vertical direction. The cover body 17 is detachably attached to the dust collecting case 5 by a locking projection 19.
[0038]
The operation and function will be described. After the third filter 13 is attached to the cover body 16 and then attached to the dust collecting case 5, the third filter 13 can be securely fixed to the dust collecting case 5 and the frame 18 Is made of an elastomer, air tightness between the third filter 13 and the cover body 17 can be reliably performed, and dust can be collected firmly by passing all the intake air through the third filter 13.
[0039]
Further, by setting the pleat shape of the third filter 13 and the fourth filter 14 to be the vertical direction, the collected dust easily falls due to vibration during use, so that the number of filter maintenance can be reduced.
[0040]
Further, by forming the third filter 13 asymmetrically in the left and right, it is possible to prevent the third filter 13 from being used by mistake on the opposite surface, and the dust already collected by the filter to flow out, and the fourth filter 14 to be removed. Can be prevented from being stained.
[0041]
Although the frame 18 is made of an elastomer in this embodiment, it may be made of a soft material having elasticity such as soft PP, rubber, and soft vinyl chloride.
[0042]
(Example 4)
A fourth embodiment of the present invention will be described with reference to FIG. FIG. 6 is a perspective view of the third filter 13 and the cover 17.
[0043]
As shown in FIG. 6, a projection 20 for simplifying the operation for attaching and detaching the third filter 13 to and from the cover body 17 is provided on the frame body 18, and the projection 20 is formed at an asymmetrical position in the left-right direction. It is.
[0044]
The operation and function will be described. A projection 20 for simplifying the operation for attaching and detaching the third filter 13 to and from the cover body 17 is provided on the frame body 18, and the projection 20 is formed at an asymmetrical position in the left and right direction. Thus, the erroneous insertion of the third filter 13 into the cover 17 can be prevented.
[0045]
【The invention's effect】
As described above, the present invention can provide a highly usable centrifugal-type vacuum cleaner with improved quality performance at low cost.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a main body of a vacuum cleaner according to a first embodiment of the present invention. FIG. 2 is a perspective view of a third filter of the present invention. FIG. 3 is a perspective view of a third filter according to a second embodiment of the present invention. FIG. 4 is a perspective view of the fourth filter. FIG. 5 is a perspective view of a third filter and a cover according to a third embodiment of the present invention. FIG. 6 is a third filter and a cover according to a fourth embodiment of the present invention. FIG. 7 is an overall view of a conventional vacuum cleaner. FIG. 8 is a cross-sectional view of the main body of the vacuum cleaner.
DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 5 Dust collection case 6 Electric blower 8 Dust separation room 9 Dust storage room 10a 1st filter 10b 4th filter 13 3rd filter 14 4th filter 21 1st suction part 22 2nd suction part

Claims (10)

A main body having a built-in electric blower that generates a suction wind, and a dust collection case detachably formed on the main body on the intake upstream side of the electric blower, the dust collection case includes a dust separation chamber that centrifugally separates dust, A dust storage chamber that communicates with the dust separation chamber and stores dust centrifugally separated in the dust separation chamber; a first suction unit that communicates the dust separation chamber with the electric blower; Vacuum cleaner having a second suction unit communicating with a blower, and a filter provided on the downstream side of the first suction unit and the second suction unit for simultaneously covering the first suction unit and the second suction unit. . The vacuum cleaner according to claim 1, wherein the filter is attached to the dust collecting case after the filter is attached to the cover body. 3. The vacuum cleaner according to claim 1, wherein a filter having a frame is attached to the cover, and the frame is formed of a soft material. The vacuum cleaner according to any one of claims 1 to 3, wherein a notch is provided in the filter. The vacuum cleaner according to any one of claims 2 to 4, wherein a projection is provided so that the outer shape of the cover body is asymmetrical in front and rear or left and right. The vacuum cleaner according to any one of claims 1 to 5, wherein a filter is further provided downstream of the filter that simultaneously covers the first suction unit and the second suction unit on the suction downstream side, and the filter is formed of a different type of filter medium. . 7. The vacuum cleaner according to claim 6, wherein a filter that simultaneously covers the first suction unit and the second suction unit has a higher dust collection performance than a filter provided downstream of the filter. 7. The vacuum cleaner according to claim 6, wherein a filter that simultaneously covers the first suction unit and the second suction unit has a lower dust collection performance than a filter provided downstream of the filter. The vacuum cleaner according to any one of claims 1 to 8, wherein a pleated shape of the filter that simultaneously covers the first air intake unit and the second air intake unit is vertically set. The vacuum cleaner according to any one of claims 1 to 9, wherein a filter that simultaneously covers the first suction unit and the second suction unit can be cleaned.

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