JPS6038132B2 - Vacuum cleaner dust collector - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a dust removal device for a vacuum cleaner having a dust collection bag made of paper or the like that can be reused and which can be used to dispose of collected dust. This invention relates to a device that removes dust by sliding the bottom of a bag.

[Successful technology]

In the past, the bag-shaped filters of this type of vacuum cleaner were not often used because they would swell due to the air flow caused by dust absorption, and would stick to the wall of the filter storage compartment, impairing ventilation or even causing damage. .

Moreover, paper-made ones, such as the one described in Jitsekki Sho 52-27176, are generally not equipped with a dust removal device, which has the disadvantage that the dust collection ability decreases during use. [
[Problems to be Solved by the Invention] Therefore, in order to eliminate the above-mentioned drawbacks, the present invention provides a dust removal device for the first fine-grained bonito filter of a paper bag and the second fine-grained dust-collecting filter of a wavy fabric such as a non-woven fabric. It is an object of the present invention to provide a dust removal device for a vacuum cleaner that is simple and has further improved dust collection ability.

[Means for solving problems]

In order to achieve the above object, the present invention provides a first fine-grained dust collection filter that has air permeability and flexibility, is shaped like a bag, and discards collected dust while storing it; A wavy second fine dust collection filter is installed in a dust collection and removal unit that is equipped with a rotatable dust removal body that supports the bottom of the dust collection filter and has a cross-shaped dust removal protrusion rib protruding from the front that slides on the bottom. In the dust removal device for a vacuum cleaner, an elliptical ring is formed on the back surface of the dust removal body, and the ring is engaged with an eccentric protrusion that rotates as a cord winding device of an electric blower rotates, and the cord The present invention is characterized in that the dust remover of the second fine dust collecting filter is provided on the dust remover support plate which rotates with the rotation of the winding device.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

First, explanation will be given mainly from the aspect of structure.

As shown in FIG. 1, the main body of the vacuum cleaner includes a main body case and a dust case 2 detachably connected to the front side of the main body case 1.
It is composed of.

An electric blower 3 and a cord reel 4 are provided inside the main body case 1.

The cord reel 4 is rotated by taking in and out the power cord 5 wound around the cord reel 4. Since the face gear 7 is engaged with the gear 6 formed on the cord reel 4', the face gear 7 rotates as the cord reel 4 rotates. The drive coupling 8 is fixed to the face gear 7 with screws. The engaging portion of the drive coupling 8 is located on the front side of the main case 1. The dust case 2 has openings on the front and rear sides.

On the front side of the dust case 2 is a lid body 9 that opens and closes the front entrance.
is provided so that it can be opened and closed freely. The lid body 9 is provided with a suction port 10 into which a hose is inserted. Inside the dust case 2, a first fine dust collection filter 11 is placed to occupy the front half, and a dust collection and removal unit 12 is placed to occupy the rear half.

The first fine dust collection filter 11 is taken in and out of the dust case 2 from the front opening.

The dust collection and removal unit 12 is taken in and taken out from the rear entrance of the dust case 2. The first fine dust collection filter 11G is a bag-shaped dust collection bag made of flexible horizontal paper or nonwoven fabric with fine ventilation holes.

A support plate 1-2' made of cardboard or the like is fixed to the first fine dust collecting filter 11. Support plate 12'
is equipped with a dust intake port. As shown in FIG. 5, a mounting cylinder portion 13 is provided inside the lid body 9 so as to communicate with the suction port 10. As shown in FIG.

An airtight packing 14 for blocking the screen is attached to the base of the mounting tube 13. A fixed locking piece 15 is provided below the mounting cylinder portion 13, and a movable locking piece 16 is provided above. The first fine dust filter 11 is attached to the lid 9 by locking the support plate 12' of the first fine dust filter 11 to the fixed locking piece 15 and the movable locking piece. By attaching it in this manner, the mounting cylinder portion 13 is inserted into the dust suction port of the support plate 12', and the support plate 12' is joined to the airtight packing 14. As shown in FIGS. 1 and 5, a large number of ventilation ensuring ribs 17 are formed on the inner wall of the dust case 2 from the front side to the rear side. Although the ventilation ensuring rib body 17 on the upper falling surface extends to the rear side, the ventilation ensuring rib 17 provided in other parts is not formed where the dust collection/removal unit 12 is placed. The collection and removal unit 12 includes a descending portion 18 formed at the bottom of the dust case 2 and a ventilation ensuring rib 1.
The rank will be determined in the latter part of 7. The ventilation ensuring rib body 17 is the first
This is provided to improve the ventilation of the fine dust collecting filter 11.

That is, the first fine dust collection filter 11 is fully inflated within the dust case 2 by the airflow flowing from the dust suction port.

The outer periphery of the first fine dust collecting filter 11 is a rib body 1 for ensuring ventilation.
7 and does not come into close contact with the inner wall of the dust case 2. The airflow that has passed through the ventilation holes of the filter 11 passes through the passage between the ventilation ensuring rib members 17 and flows toward the dust collection and removal unit 12 side. The bag dust removal unit 12 is detachably attached to the descending portion 18 of the dust case 2, and has the following configuration.

This will be explained in detail with reference to FIGS. 1, 2, 3, 4, and 5. The dust collection/removal unit frame 19 has coarse filters 20 on the top and side surfaces.

A circular entrance 21 with a concave portion at the bottom is formed on the front surface. At the center of this opening 21 is a first fine dust collection filter 1.
A support portion 23 that rotatably supports one first dust removing body 22 is provided. When the first dust removing body 22 is attached to the support part 23 with the center hole 24 of the first dust removing body 22, the Sekiguchi 21
is blocked.

The first dust removal body 22 is covered with a coarse filter 25 and is provided with four dust removal protrusion ribs 26.
A bulge 27 is formed in the lower part of the first dust removing body 22 .
As shown in FIGS. 3 and 4, an elliptical ring 28 is formed on the back surface of the rock outcrop 27. As shown in FIGS. This ring 28
The biased D shaft 38 of the transmission shaft 36 engages with. The back side of the dust collection/removal unit frame 19 is a gate.

A wavy second fine dust collection filter 29 is placed inside the back surface, and a dust removal device support plate 30 is placed on the back side of this. Second fine dust collection filter 29 and dust removal device support plate 3
0 is held together with an airtight packing 31 around its outer periphery. The dust collection and removal unit 12 is constructed by fitting this collection into the bag dust removal unit frame 19. The second fine dust collecting filter 29 is made by bending oak wood made of non-woven fabric or cloth into a wave shape, and a shape-retaining frame 32 is integrally formed around it.

The airtight packing 31 holds the shape retaining frame 32 between them. The dust removal gear 33 is rotatably supported by the dust removal device support plate 30.

A second fine dust collection filter 29 is provided at the boss part of the dust removal gear 33.
A dust remover 34 is fixed. The dust remover 34 is located on the back surface of the second fine dust collection filter 29 and is provided so as to be in sliding contact with the back surface. When the dust removal gear 33 is rotated, the dust removal element 34 is removed from the back (back side) of the second fine dust collection filter 29.
It will rotate as if repelling. The dust removal gear 33 is provided with a manual knob 35. This knob 35
The dust removal gear 33 can also be rotated using the hand. This can be done when the dust case 2 is removed from the main case 1. The transmission shaft 36 is rotatably supported by a bearing 37 provided at the lower part of the shape retaining frame 32.

An eccentric spinal cord 38 is formed on the front side of the transmission shaft 36, and a passive coupling 39 is provided on the rear side.

The eccentric pith 38 is placed so as to engage with the ring 28 on the first dust removal body 22 side. The passive coupling 39 is configured such that teeth 40 formed on the outer periphery engage with teeth provided on the outer periphery of the dust removal gear 33 and teeth of the coupling engage with teeth of the drive coupling 8. placed in The passive coupling 39 and the drive coupling 8 are engaged when the dust case 2 is coupled to the main case 1, and when the dust case 2 is removed from the main case 1,
The engagement is disengaged. [Function] Although the configuration of the bonito collection and removal unit 12 is as described above, the present vacuum cleaner will be explained below mainly from the aspect of operation.

When the disposable first fine dust collection filter 11 is set in the dust case 2 and the electric blower 3 is operated, air containing dust passes through the suction port 10 and moves along the arrow W as shown in FIG.
The dust flows into the first fine dust collecting filter 11 as shown in FIG.

The first fine dust collection filter 1 1 swells like a balloon.
The coarse and fine grains are collected in the same filter 11. The air and some very fine dust pass through the first fine dust collection filter 11 and the coarse filters 20 and 25, and head toward the second fine dust collection filter 29.

Although the second fine dust collecting filter 29 has air permeable holes of approximately the same size as the first fine dust collecting filter 11, fine particles are collected by the second fine dust collecting filter 11. The exhaust gas that passes through the electric blower 3 and is exhausted to the outside of the main body case 1 becomes clean. As the amount of dust collected by the first fine dust collection filter 11 increases, the ventilation holes become clogged and the suction performance deteriorates. By stopping the electric blower 3 and inserting and removing the power cord 5, the first fine dust filter 11 and the second fine dust filter 29 are removed and clogging is eliminated. That is, as the cord reel 4 rotates, the dust removal gear 33 rotates via the face gear 7, drive coupling 8, and passive coupling 39.

The dust remover rotates together with the dust removal gear 33 and removes dust by flicking the back surface of the second fine dust collecting filter 29. On the other hand, the transmission shaft 36 rotates together with the passive coupling 39. The eccentric shaft 38 rotates inside the ring 28 in a Z circle shown in FIG. The dust removing body 22 reciprocates in the direction of the arrow V with the center hole 24 as the center D. Dust removal protrusion rib 2 of dust removal body 22
6 is connected to the back surface of the first fine dust collection filter 11, so the dust removal protrusion rib 26 rubs the back surface. This rubbing causes the filter 11 to move as shown by the arrow Vx in FIG.
It vibrates in the direction, peeling off the adhering dust and eliminating clogging. Since the suction performance is restored by dust removal, dust collection can be carried out while repeating dust removal until the first fine dust collection filter 11 is completely free of dust.

When the first fine dust collecting filter 11 has stopped collecting dust, the lid 9 is opened and the filter 11 is thrown away.
By replacing the first fine dust collection filter 11 with a new one, dust collection can be performed again. The bonito dust removed from the second fine dust collecting filter 29 accumulates on the downward part 18 side of the dust case 2.

The amount accumulated here is much smaller than that on the first fine dust collection filter 29 side. There is no need to dispose of waste from the second fine dust filter 29 every time the first fine dust filter 29 is replaced. The garbage on the second fine bonito filter 29 side is removed by removing the dust collection/removal unit 12 from the rear side of the dust case 2. Now, the second fine dust collecting filter 29 has ventilation holes of the same size as the first fine dust collecting filter 11.
This section explains how dust collection is performed.
The first fine dust collection filter 11 has ventilation holes that can collect dust particles with a particle size of 5 m or more.

The size of these ventilation holes is not uniform throughout and varies. Some of the 5 Am Hosojo brews will blow through.

The blow-through amount is 3% to 5%. Figure 7 shows the atrium.

The ventilation holes of the first fine dust collection filter 11 are not uniform, and there are large ventilation holes 11a and small ventilation holes 11b.
A coarse filter 25 is connected to the downstream surface of the first fine dust collecting filter 11, and the ventilation openings of these filters are considerably larger than those of the first fine dust collecting filter 11. 5
If the pongee dust 41 of the mu m rides on the air current and reaches the upstream surface of the first fine dust collection filter 11 through the small ventilation holes 11b, it will be collected.

Once it reaches the large ventilation hole 11a, it passes through without being collected. This is the actual situation. In this embodiment, a second fine dust collecting filter 11 having the same ventilation holes downstream of the first fine dust collecting filter 11 is used.
By providing the fine dust collecting filters 29 at intervals L, the fine dust 41 that has passed through the first fine dust collecting filter 11 is collected. That is, the ventilation holes of the second fine dust collection filter include large ventilation holes 29a and small ventilation holes 29b.

Similar to the first fine dust collection filter 11, small ventilation holes 29
If the pongee dust 41 reaches b, it will be collected. If it reaches the large ventilation hole 29a, it will pass through without being brewed.
According to the results of the experiment, about half of the Hosotoyo 41 that passed through the first fine dust collection filter 11 passed through the second Tsumugi dust filter 2.
It has been confirmed that the meeting will be held on September 9th.

In other words, by arranging two stages of fine dust collection filters that are the same size as the aircraft, it is possible to reduce the amount of dust that blows through, and to obtain clean exhaust air. What is important here is that the first fine dust filter 11 and the second fine dust filter 29 are not brought into close contact with each other but are kept apart.

If they come into close contact, the collection performance of the second fine dust collection filter will decrease. However, when the two filters 11 and 29 are separated, the free-flowing state disappears and the fine grain 41 does not pass through unless it reaches the large ventilation hole 29a of the second fine dust collecting filter 29.

As a matter of fact, the collection rate of the second fine dust collection filter 29 will be improved. It is also believed that the following phenomenon occurs.

If there is a gap between the two filters 11, 29, the space between them has a large area, so the velocity of the fluid is slower than that at the ventilation hole. In other words, the collision of the fine dust 41 against the upstream surface of the second fine dust collecting filter 29 is weakened, and as a result, the blow-through of the second fine dust collecting filter 29 is reduced. Furthermore, when the second fine dust collecting filter 29 is brought into close contact with the back of the first fine dust collecting filter 11, the dust collected by the second fine dust collecting filter 29 is transferred to the first fine dust collecting filter 1.
It will be attached to the back of 1.

When the first fine dust collecting filter 11 is taken out from the dust case 2 and carried around, the dust attached to the back surface is not caked up. However, in this embodiment, since the second fine dust collecting filter 29 is provided apart from the back surface of the first fine dust collecting filter, no problem occurs.

〔Effect of the invention〕

Since the structure of the present invention is as described above, it has the following effects.

[A] A first fine dust collection filter that has air permeability and extensibility, is bag-shaped, and is disposed of while storing collected dust; and a first fine dust collection filter that supports the bottom of the first fine dust collection filter, and A wavy second fine dust collection filter is provided in the dust collection and removal unit which is rotatably equipped with a dust removal body having a cross-shaped dust removal protrusion rib protruding from the front that slides on the bottom, making it easy to use as a disposable paper bag filter. However, the dust is collected in two stages by the first and second fine dust collection filters, and even fine dust can be completely captured, resulting in clean exhaust air.

Furthermore, since the bottom of the paper bag filter is supported by the front surface of the dust removing body, it is possible to prevent the first fine dust collection filter from being damaged during cleaning.

'.

} An elliptical ring is formed on the back surface of the dust removal body, and the yielding ring is engaged with an eccentric protrusion that rotates due to the rotation of the cord winding device of the electric blower. Since the filter removes dust while sliding on the bottom and easily peels off the fine dust attached to the inner wall of the filter, the dust collection ability is restored. Furthermore, since the sliding motion of the dust removal protrusion rib is rotational vibration, the first fine dust collection filter will not be damaged.

Since the dust remover of the second fine dust collection filter is provided on the dust removal device support plate which rotates together with the first fine dust collection filter by the rotation of the cord winding device, dust removal is always performed when cleaning, and a good condition is always maintained. In addition to maintaining the dust collection ability, the dust removed from the second fine dust collection filter can also be easily disposed of by removing the dust collection and removal unit from the main body case.

8 By removing the dust case from the main case and turning the manual handle, you can remove the dust from the two fine dust collection filters, and the dust collected in the second fine dust collection filter can be transferred to the first fine collection filter. Does not adhere to the back of the dust filter,
When the first fine dust collecting filter is carried around, dust will not fall out from the first fine dust collecting filter.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show one embodiment of the present invention, and FIG. 1 is a vertical sectional view of the entire vacuum cleaner, FIG. 2 is an exploded perspective view of the dust collection and removal unit, and FIG. 3 is a dust removal body, An exploded perspective view of the dust removal gear and transmission shaft, Figure 4 is a rear view of the dust removal body, and Figure 5 is an exploded perspective view of the dust removal gear and transmission shaft.
The figure is an exploded perspective view of the dust case, FIG. 6 is a diagram showing the dust removal state of the first fine dust collecting filter, and FIG. 7 is a diagram showing the dust collecting form of the first and second fine dust collecting filters.

4... Cord winding device, 11... First
Fine dust collection filter, 29... Second fine dust collection filter, 12... Dust collection and removal unit, 22...
Dust removal body, 26...Dust removal protrusion rib, 28...
... Oval ring, 30 ... Removal layer support plate,
33... Dust removal gear, 34... Dust removal element,
38... Eccentric protrusion.

Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Scope of Claims] 1. A first fine-grained dust-collecting filter that has air permeability and flexibility, is bag-shaped, and is disposed of while storing collected dust, and a bottom part of the first fine-grained dust-collecting filter. A wavy second dust collecting unit is equipped with a rotatable dust removing body with a cross-shaped dust removing protrusion rib protruding from the front that supports and slides on the bottom of the dust collecting body.
In a dust removal device for a vacuum cleaner equipped with a fine dust collection filter, an elliptical ring is formed on the back surface of the dust removal body, and the ring is engaged with an eccentric protrusion that rotates by rotation of a cord winding device of an electric blower. A dust removal device for a vacuum cleaner, characterized in that a dust removal element of the second fine dust collection filter is provided on a dust removal device support plate that rotates as the cord winding device rotates. 2. Dust removal in a vacuum cleaner according to claim 1, characterized in that a coupling is interposed between the cord winding device and the eccentric protrusion of the electric blower, and a manual handle is provided on the back of the dust removal gear. Device.