JP2003199694A - Unit for dust collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily apply a cyclone structure. <P>SOLUTION: A unit 16 for the dust collector has an upper tank 17, a main body 4 can be linked to the tank 17 on the upper side thereof and a tank 2 can be linked to the tank 17 on the lower side thereof. Besides, under the lateral side of the upper tank 17, a sucking port 19 is formed in a tangential direction, and inside the upper tank 17, a partition wall 20 with a cylinder 21 passing through the middle part thereof is provided above the sucking port 19. Further, the upper end of an internal tank 22 is linked to the lower surface of the partition wall 20 and at an upper position on the lateral side of the internal tank 22, an internal sucking port 23 is provided in the tangential direction. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a dust collector unit used in a dust collector in which a main body including a motor and a fan is separably mounted.

[0002]

2. Description of the Related Art In a dust collector, a main body equipped with a motor and a fan is placed on the upper part of a tank, and the fan is rotated by driving the motor to suck air from a suction port provided in the tank and pass through the main body. And discharge it to the outside. A filter is provided on the ventilation path to the main body in the upper part of the tank, and when dust-laden air passes through the filter, the dust adheres to the filter or falls into the tank.
Dust collection is possible. In addition, such a dust collector,
The tank and the main body are separable so that the dust collected in the tank can be discarded.The main body can be fixed to the tank by locking the hooks on the side of the tank to the peripheral edge of the main body. ing.

[0003]

In the above dust collector, since the filter is immediately clogged, it is necessary to frequently clean and replace the filter. On the other hand, in the dust collector, the suction port is provided along the tangential direction of the tank, and the sucked air is swirled along the inner peripheral surface of the tank and then sent to the main body side, thereby efficiently separating the dust and separating the tank. There is also known one provided with a so-called cyclone structure that is dropped inside. In this case, since the amount of dust collected on the filter side is reduced by separating the dust, clogging of the filter is effectively prevented, which is preferable.

Therefore, the invention according to claim 1 provides a dust collector unit in which even a dust collector having no cyclone structure can be easily provided with the cyclone structure and the clogging of the filter can be effectively prevented. This is the purpose.

[0005]

In order to achieve the above object, the invention according to claim 1 includes a tank of a dust collector, a motor and a fan, and a main body of the dust collector detachably mounted on the upper portion of the tank. It is possible to connect between and, and in that connection state,
The dust collector unit is provided with a guide means capable of guiding the sucked air along the inner peripheral surface of the tank. In addition to the object of claim 1, the invention according to claim 2 has a cylindrical shape in which a main body can be connected to an upper end and a tank can be connected to a lower end, respectively, in order to easily connect to and disconnect from a dust collector. A dust collector unit which is a body and whose guide means is a suction port provided along the tangential direction of the tubular body is provided. In addition to the object of claim 2, the invention according to claim 3 further effectively prevents clogging of the filter on the main body side in the tubular body, above the suction port. A partition wall is provided for partitioning the partition into upper and lower parts, and the partition wall is provided with a communication port for communicating the upper and lower parts of the partition wall. In addition to the object of claim 3, the invention according to claim 4 further comprises an upper end of a cylindrical internal tank having a closed lower end on the lower surface of the partition wall in order to more efficiently separate dust by the cyclone structure. An internal suction port is provided concentrically with the communication port, and an internal suction port capable of guiding the air in the tank in a direction along the inner peripheral surface of the internal tank is provided on the upper side surface of the internal tank.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a vertical cross-sectional view of the dust collector. The dust collector 1 has a circular tank 2 having a suction port (not shown) to which a suction hose can be connected and provided with casters 3, 3 ... At the bottom, and above the tank 2. And a main body 4 having a motor 5 and a fan 6. The main body 4 is formed separately from the tank 2, the upper opening of the tank 2 is covered with the lid portion 7 of the main body 4, and a hook (not shown) provided on the side of the tank 2 is hooked on the peripheral edge of the lid portion 7. By stopping it, the main body 4 becomes the tank 2
It can be fixed to. Reference numeral 8 denotes a case integrally formed with the lid portion 7, which accommodates the motor 5 and the fan 6 and projects to the upper center of the tank 2 in a fixed state of the main body 4 and has a plurality of suction holes 9, 9 provided on the lower surface. Is opened in the tank 2. Reference numeral 10 denotes an exhaust port opened downward to the main body 4 at an outer peripheral position of the case 8, 11 denotes a suction hole 9 through the fan 6,
It is a ventilation path that connects the exhaust port 10 with the exhaust pipe 9.

Reference numeral 12 denotes a filter, which has a mortar-like outer shape whose diameter gradually decreases as it goes downward, and a top plate 13 at an upper end, a bottom plate 14 at a lower end, and a circumferential direction between the plates 13, 14. Filter members 15 arranged in parallel,
15 and so on, the filter 12 is located below the case 8 and is fixed by covering the lid 7 of the main body 4 with the top plate 13 hooked on the upper opening of the tank 2. It is sandwiched in a posture that divides the upper space of 2 into upper and lower parts. Therefore, when a switch (not shown) provided in the main body 4 is turned on, the motor 5 is driven, the fan 6 is rotated, and external air is sucked into the tank 2 from the suction port via the suction hose or the like. The air that entered is the filter 1
.. through the suction members 9 and 9
.. enter the case 8 through the ventilation passage 11 and the exhaust port 10.
And discharged to the outside of the main body 4. Therefore, the dust sucked together with the air adheres to the filter members 15, 15 ... And is collected.

On the other hand, FIG. 2 is an enlarged sectional view of a dust collector unit (hereinafter referred to as "unit") 16,
Has an upper tank 17 having substantially the same diameter as the tank 2 as a tubular body. Similar to the tank 2, the upper end opening of the upper tank 17 has the top plate 13 of the filter 12 and the lid portion 7 of the main body 4.
Can be fitted together, and the main body 4 can be fixed to the upper tank 17 by locking a hook (not shown) provided on the upper side of the side surface to the peripheral edge of the lid portion 7. Further, a flange 18 that can be attached to the opening of the tank 2 is extended to the lower end opening similarly to the lid portion 7 of the main body 4, and a hook on the tank 2 side can be locked. Below the side surface of the upper tank 17,
As the guide means, a suction port 19 is formed in a direction along the tangential direction, and a partition wall 20 that partitions the upper tank 17 into upper and lower parts is provided above the suction port 19 in the upper tank 17.
At the center of the partition wall 20, a cylindrical body 21 is fixed as a communication port for communicating the upper and lower sides of the partition wall 20. Further, the lower surface of the partition wall 20 is connected to the upper end of a cylindrical internal tank 22 which is concentric with the cylindrical body 21 and whose bottom is closed, so that the inside and outside of the internal tank 22 communicate with the upper side surface of the internal tank 22. The internal suction port 23 is provided so as to be oriented along the tangential direction of the internal tank 22.

Further, in the upper tank 17, the partition wall 20
A paper filter 24 is provided above.
The paper filter 24 has openings formed at both ends,
It has a cylindrical filter body 25 having a mounting hole formed in the center, and a rubber sheet (not shown) each having a through hole and a cardboard connector 26 are bonded to the center of the filter body 25. Therefore, the paper filter 24 is detachably attached to the tubular body 21 by fitting the central connector 26 into the tubular body 21 protruding above the partition wall 20. Both openings of the filter body 25 can be temporarily closed by folding each of them and sandwiching the folded portion with a dedicated clamper or a commercially available clip.

In the dust collector 1 constructed as described above, as shown in FIG. 3, the upper tank 17 of the unit 16 is first placed on the tank 2 with the main body 4 and the filter 12 removed from the upper portion of the tank 2. When stacked and locked by the hook on the side of the tank 2, the tank 2 and the upper tank 17 are integrated, and the internal tank 22 is accommodated in a manner of being suspended in the center of the tank 2. Then, when the filter 12 and the main body 4 are overlapped on the upper tank 17 and the lid 7 is locked by the hook on the upper tank 17 side, the unit 16 and the main body 4 are arranged as shown in FIG.
Are integrated, and the filter 12 is accommodated in a manner of being suspended in the upper center of the partition wall 20. In order to use the suction port 19 on the upper tank 17 side, it is necessary to close the suction port on the tank 2 side. In this case, on the outer peripheral surface of the upper tank 17,
A cap that can be attached is provided at the inlet of the inlet on the tank 2 side, or the inner peripheral surface of the upper tank 17 is located on the outlet side of the inlet on the tank 2 side at the same time when the upper tank 17 is set. Any blocking means may be adopted, such as providing a wall body capable of blocking.

Therefore, in the state of FIG. 4, when a switch (not shown) provided in the main body 4 is turned on, the motor 5 is driven and the fan 6 is rotated, and the outside air is blown from the suction port 19 through the suction hose or the like. Is sucked into the tank 2. Since the suction port 19 is along the tangential direction of the upper tank 17, the air is once swirled along the inner peripheral surfaces of the upper tank 17 and the tank 2 and then sucked into the internal tank 22 from the internal suction port 23. Due to the swirling of the air, the relatively heavy dust first falls into the tank 2 and is separated.
Then, also in the internal tank 22, the air once swirls along the inner peripheral surface of the internal tank 22 depending on the direction of the internal suction port 23, and then enters the paper filter 24 from the tubular body 21. Due to the swirling of the air in the internal tank 22, among the dust that has entered the internal tank 22 together with the air, a relatively heavy one falls into the internal tank 22 and is further separated.

The air thus entering the paper filter 24 passes through the paper filter 24, then passes through the filter members 15, 15 ... Of the filter 12, and enters the case 8 through the suction holes 9, 9. The air is discharged to the outside of the main body 4 through the ventilation path 11 and the exhaust port 10. Therefore, only the fine dust that has passed through the tank 2 and the internal tank 22 is stored in the paper filter 24 in the unit 16 or is attached to the filter members 15, 15 ... of the filter 12 and collected. When the amount of dust stored in the paper filter 24 becomes full, the main body 4 and the filter 12 are moved to the upper tank 17
The paper filter 24 can be removed from the tubular body 21 by separating the paper filter 24 from the. Therefore, if one or both openings of the filter main body 25 are opened and dust is discarded, the paper filter 24 can be attached to the cylindrical body 21 again and reused. When the number of times of use increases and the filter body 25 becomes clogged, the paper filter 24 may be replaced.

As described above, according to the unit 16 of the above embodiment, it is possible to connect the tank 2 of the dust collector 1 and the main body 4 which is equipped with the motor 5 and the fan 6 and is detachably mounted on the upper portion of the tank 2. By providing the suction port 19 capable of guiding the sucked air along the inner peripheral surface of the tank 2 in the connected state, it is possible to easily change the existing dust collector 1 to the cyclone structure if necessary. It is possible to efficiently separate the dust in the tank 2 and the internal tank 22 to separate the paper filter 24.
The amount of dust collected by the filter 12 can be reduced.
Therefore, the amount of dust adhered to the filter members 15, 15, ... Of the filter 12 is reduced, clogging is prevented, and the number of times of cleaning the filter 12, replacement of the filter member 15, etc. is reduced. Similarly, since the amount of dust stored in the paper filter 24 is also reduced, the number of times the paper filter 24 is discarded or replaced can be reduced. Further, since the unit 16 can be separated from the tank 2 and the main body 4 as needed, cleaning and repair can be easily performed.

Further, a main body 4 is provided at an upper end, and a cylindrical upper tank 17 to which the tank 2 can be connected is provided at a lower end, and a guide means is provided along a tangential direction of the upper tank 17 for a suction port 1.
Since the unit 16 is 9, the connection and removal to and from the dust collector 1 can be easily performed. Further, in the upper tank 17, above the suction port 19, the upper tank 1
A partition wall 20 for partitioning the inside of 7 into upper and lower parts is provided.
Further, since the cylindrical body 21 that connects the upper and lower sides of the partition wall 20 is provided, it is possible to more effectively prevent clogging of the filtering members 15, 15 ... Of the filter 12. Then, the upper end of the internal tank 22 is concentrically connected to the lower surface of the partition wall 20, and the air inside the tank 2 is directed to the upper side surface of the internal tank 22 along the inner peripheral surface of the internal tank 22. By providing the guideable internal suction port 23, the dust can be more efficiently separated by the cyclone structure.

In the above embodiment, the unit 16 is provided with the internal tank 22 to form the double cyclone structure. However, the internal tank 22 may be eliminated and the cyclone structure may be formed into one. In this case, the partition wall 20 can be omitted. Also, the paper filter 24 can be omitted. Further, the suction port as the guide means is not limited to be provided in the direction along the tangential direction of the upper tank 17 as in the above-described embodiment, but as shown in FIG. 5, the suction port 27 formed in the normal radial direction. A guide plate 28 that guides air along the tangential direction of the upper tank 17 may be continuously provided on the outlet side of the. This can be applied to the internal suction port 23 of the internal tank 22 as well, but if it is applied to the outer upper tank 17 at least as shown in the figure, the suction port 27 is provided in the radial direction of the tank as in the conventional case, so that The connection and disconnection of the suction hose can be performed more easily and the workability is improved as compared with the case where the suction hose is installed in the same direction.

Further, even if such a suction port is not provided on the unit side, the existing suction port of the tank 2 can be utilized to connect the upper tank of the unit to the tank in the same manner as the guide plate 28 of FIG. A cyclone structure can be adopted by providing a guide plate, which is located on the outlet side of the suction port at the same time as the setting, and which guides the sucked air in the tangential direction of the tank, as guide means. In this case, since the upper tank is eliminated, the unit can be formed by the partition wall connected and fixed between the main body and the tank, and the guide plate connected to the partition wall. It will be almost housed inside, and the height of the dust collector can be hardly changed. Other,
The example of providing the unit of the present invention in the dust collector capable of only sucking air has been described, but the unit of the present invention can be similarly applied to a dust collector provided with a blower function capable of blowing air. .

[0017]

According to the invention described in claim 1, it is possible to connect between the tank and the body of the dust collector, and in the connected state,
By being a dust collector unit including guide means capable of guiding the sucked air along the inner peripheral surface of the tank,
The existing dust collector can be easily changed to a cyclone structure as needed, and the dust can be efficiently separated in the tank to reduce the amount of dust collected by the filter of the dust collector. Therefore, the amount of dust attached to the filter is reduced, clogging is prevented, and the number of times of cleaning and replacement of the filter is reduced. Further, the unit can be separated from the tank and the main body as needed, so that cleaning and repair can be easily performed.

According to the invention of claim 2, claim 1
In addition to the effect of the above, the main body at the upper end and the tank at the lower end present a cylindrical body that can be connected to each other, and the guide means is a dust collector unit that is a suction port provided along the tangential direction to the cylindrical body. By doing so, it can be easily connected to and removed from the dust collector. According to the invention of claim 3, in addition to the effect of claim 2, a partition wall for partitioning the tubular body into upper and lower parts is provided in the tubular body above the suction port, and the partition wall has the partition wall. By providing the communication port that communicates the upper and lower sides of the, it is possible to more effectively prevent clogging of the filter on the main body side. According to the invention of claim 4, in addition to the effect of claim 3, the lower end of the partition wall is connected to the upper end of a cylindrical internal tank having a closed lower end concentrically with the communication port. By providing the internal suction port on the upper side surface that can guide the air in the tank in the direction along the inner peripheral surface of the internal tank, the dust can be more efficiently separated by the cyclone structure.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a dust collector.

FIG. 2 is an enlarged cross-sectional view of a unit.

FIG. 3 is an exploded cross-sectional view of a dust collector using the unit.

FIG. 4 is a cross-sectional view of a dust collector using the unit.

FIG. 5 is a schematic cross-sectional view showing a modified example of a suction port.

[Explanation of symbols]

1 ... Dust collector, 2 ... Tank, 4 ... Main body, 12 ... Filter, 16 ... Dust collector unit, 17 ... Upper tank, 19 ... Suction port, 20 ... Partition wall, 21 ... Cylindrical body ,
22 ... Internal tank, 23 ... Internal suction port, 24 ... Paper filter

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B01D 50/00 B01D 50/00 501H (72) Inventor Hiroaki Ichikawa 3-11-8 Sumiyoshi-cho, Anjo City, Aichi Prefecture No. 72 Inventor of Makita Co., Ltd. (72) Atsushi Sakai 3-11-8 Sumiyoshi-cho, Anjo City, Aichi Prefecture F Term of Makita Co., Ltd. (reference) 3B062 AD00 AH02 AH05 4D031 AC04 BA03 BA10 BB10 CA01 DA01 DA05 4D058 JA07 JA12 KA15 KB11 KC22 QA01 QA03 QA09 QA21 RA02 SA20 UA25

Claims (4)

[Claims] 1. A dust collector tank is connectable between a dust collector tank and a main body of the dust collector that is detachably mounted on the upper portion of the tank by including a motor and a fan. A dust collector unit comprising guide means capable of guiding along the inner peripheral surface of a tank. 2. A cylindrical body to which a main body can be connected at the upper end and a tank can be connected to the lower end, and the guide means is a suction port provided along the tangential direction to the cylindrical body. Dust collector unit described. 3. The partition wall for partitioning the tubular body into upper and lower parts above the suction port is provided in the tubular body, and the partition wall is provided with a communication port for communicating the upper and lower sides of the partition wall. Dust collector unit described. 4. The lower surface of the partition wall is connected to the upper end of a cylindrical internal tank having a closed lower end concentrically with the communication port, and the sucked air is introduced into the inner circumference of the internal tank on the upper side surface of the internal tank. The dust collector unit according to claim 3, further comprising an internal suction port that can be guided in a direction along the surface.