JPS625615B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a vacuum cleaner that uses both a disposable filter and a reusable filter.

[Conventional technology]

For this type of vacuum cleaner, for example,
As shown in Japanese Patent No. 88357, there is a known case in which a cylindrical disposable filter that is compressed into a small size so as to be able to be supplied for a long period of time is provided in the front lid of the dust case. This product has the advantage that it can be installed in the dust case so that the disposable filter can be used automatically without having to replace the disposable filter. It has an extremely complex structure that requires a suturing mechanism and a cutting and separating mechanism. Moreover, the filter device provided in the dust case shown in the above publication has the function of preventing the disposable filter from coming into close contact with the inner wall of the dust case and the function of regulating the swelling of the disposable filter. Moreover, it does not have a structure that can independently capture fine dust that has flowed into the dust case without using a disposable filter.

Furthermore, the disposable filter shown in the above publication opens the front lid of the dust case, attaches it to the front lid, and then, when used, the tip of the disposable filter is sutured to spread it inside the dust case. After that, after suturing the rear end of the used part of the disposable filter and cutting the unused part and the used part of the disposable filter, be sure to separate the main case and dust case, and connect the dust case to the main case. It is designed to take out used disposable filters from the surface.

[Problem that the invention seeks to solve]

In the above conventional example, if you get sick, forget to attach the disposable filter, or operate the electric motor without knowing that the disposable filter is used up, most of the fine dust that came in from the suction port of the dust case will be removed. It passes through the filter device and reaches the electric motor, making it unable to function as a vacuum cleaner.

Furthermore, in the above conventional example, in order to make the disposable filter usable, it is necessary to sew the disposable filter in addition to attaching it to the front lid, and to remove dust trapped inside the disposable filter. However, in order to dispose of the filter together with the used disposable filter, it is necessary to sew and cut the disposable filter and to separate the main body case and dust case, which makes it inconvenient to use.

An object of the present invention is to address the above-mentioned problems, and to provide a vacuum cleaner that uses a disposable filter and a filter that is repeatedly used. To provide an easy-to-use vacuum cleaner that can easily replace dust and dispose of dust captured by a filter unit without using a disposable filter.

[Means for solving problems]

The above purpose is to install a disposable filter that is pre-shaped into a bag shape, each having independent dust collection ability, and a filter unit that has shape retention and can be used repeatedly, into the dust collection chamber of the dust case. , in a vacuum cleaner in which the disposable filter and the filter unit are installed in this order from the suction port side leading into the dust collection chamber, the filter unit is provided with a fine filter having a shape-retaining property and a fine filter unit located upstream of the fine filter. a shape-retaining coarse filter that is arranged to prevent coarse dust from adhering to the fine filter and to restrict swelling of the disposable filter; By forming a first opening through which the disposable filter is taken in and taken out, and a second opening through which the filter unit is taken in and taken out on the downstream side of the dust collection chamber,
achieved.

[Effect]

Even if a user of a vacuum cleaner forgets to put a disposable filter in the dust collection chamber and starts vacuuming, the coarse dust will be captured by the coarse filter and the fine dust will be trapped by the fine filter. Fine dust is captured and the function as a vacuum cleaner is not lost. Since the coarse dust filter prevents coarse dust from adhering to the fine dust filter, the ventilation resistance of the fine dust filter does not suddenly increase, and the suction force does not suddenly decrease.

Since the disposable filter is formed into a bag shape in advance, the disposable filter can be taken in and out of the dust collection chamber as it is through the first opening without requiring any suturing or cutting operations. At that time, the first opening opens the second opening into which the filter unit is inserted and taken out.
Since it is provided separately from the opening, the disposable filter can be taken in and out of the dust collection chamber regardless of the filter unit. Fine dust and coarse dust captured only by the filter unit without installing a disposable filter in the dust collection chamber can be disposed of through the second opening by pulling out the filter unit from the second opening.

〔Example〕

Hereinafter, the present invention will be explained in detail based on the drawings showing one embodiment.

In the drawings, reference numeral 1 denotes a main body case of the vacuum cleaner, which is made of a material such as synthetic resin or steel plate, and is provided with a main handle 2, a cord outlet 3, a receiving part 4, a hooking part 5 for a case clamp 13, etc. ing.

Reference numeral 6 denotes an electric blower that is housed inside the main body case 1 via vibration-proof rubber 7, etc. Also, inside the main body case 1 is a cord winding device (not shown).
The main body case 1 is also constructed so that a power cord 8 is housed therein, and 9 is a wheel for running that is rotatably supported on an arbitrary part of the main body case 1.

Reference numeral 10 denotes a dust case which is detachably attached to the main body case 1 and whose inside becomes a dust collection chamber 10a, and is made of a material such as synthetic resin or steel plate, and the surface side that is attached to the main body case is The dust collection chamber 10a is opened at the second opening 10c. In addition, the dust collection chamber 10a
, the first opening 1 is located in a different part from the second opening 10c.
0b is provided.

And, on the second opening 10c side, a protrusion 11 that fits into the receiving part 4 of the main body case 1;
A case clamp 13 is disposed via a spring body 12, and the above-mentioned dust case 10 is removably attached to the main case 1 by the protrusion 11 and the case clamp 13.

On the other hand, a lid 18 is provided on the first opening 10b of the dust collection chamber 10a. Rotating shaft portion 14 for this lid body 18
The lid hook portion 15 is provided on the dust case 10.

An auxiliary handle 16, casters 17 for traveling, etc. are also arranged in the dust case 10.

A lid 18 for closing the opening 10b of the dust collection chamber 10a is rotatably supported by the rotating shaft 14 of the dust case 10, and is attached to the first opening 10b so as to be openable and closable.

This lid body 18 has a lid clamp 19 that hooks and holds the lid hook part 15 of the dust case 10.
It is provided via a spring body 20, and a lid cover 21 is fixed with screws 22 or the like, and the first
A lid gasket 23 for keeping the surface of the opening 10b airtight is attached.

The lid body 18 is provided with a suction port 24 for sucking in dust by connecting a hose, an extension pipe, a suction port, etc. (not shown), and a disposable filter packing 25 is disposed at the suction port 24. It is set up.

The lid cover 21 is provided with a disposable filter engaging/disengaging device 26 for setting and removing a disposable filter 27 so as to communicate with the suction port 24.

The disposable filter 27 has a paper bag portion 27a formed in advance into a bag shape using filter paper or the like, and the disposable filter 27 is inserted into the lid 18 at the entrance portion of the paper bag portion 27a.
A locking piece 28 that communicates with the suction port 24 by the disposable filter locking/disengaging device 26 provided on the lid cover 21 of the lid cover 21 and is airtightly held by the disposable filter packing 25 is attached by adhesive or adhesive. It is fixed by a method such as welding.

Therefore, the disposable filter 27 can be easily engaged and detached by holding the locking piece 28 with the disposable filter engagement and disengagement device 26 and releasing it.

The filter unit 29 is connected to the dust case 10.
It is detachably attached to the second opening 10c side of the disposable filter 27, and is located downstream of the disposable filter 27, so that fine dust can be captured and it can be used continuously without being replaced.

In this embodiment, the filter unit 29 includes a fine filter 30, a coarse filter 31, a dust removal device 32 that serves to remove dust attached to the fine filter 30, and a dust removal device 32 that combines these parts to form a dust collection chamber 10a. It is composed of a filter packing 33, etc., which serves to removably attach and hold the opening 10c in an airtight manner.

The fine filter 30 consists of a filtration part 34 made of cloth, non-woven fabric, etc., and a frame part 35 made of synthetic resin or the like, which is integrally connected to the filtration part 34 and has shape-retaining properties. It is something.

The coarse filter 31 is composed of a coarse dust filtering section 36 made of a wire mesh, a synthetic resin net, etc., and a frame section 37 for maintaining the shape of the coarse dust filtering section 36.

The dust removal device 32 knocks out the dust that has clogged the filtration part 34 of the fine filter 30, and
A device that applies and removes vibrations by rotating and sliding.
Various methods generally known at present can be selected and adopted as needed.

The auxiliary coarse filter 38 is installed over the entire inner peripheral surface of the dust collecting chamber 10a, and is constituted by a coarse dust filter section 39 and a shape retaining frame section 40.

This auxiliary coarse filter 38 is provided in the dust collection chamber 10a.
The dust collection chamber 10
It is arranged so as to have an air passage between it and the inner circumferential wall of a.

In this embodiment, an example in which the auxiliary coarse filter 38 can be separated from the coarse filter 31 and an example in which the auxiliary coarse filter 38 is arranged all around the inner peripheral surface of the dust collection chamber 10a has been described. For example, the coarse filter 31
It is also possible to substitute only with

In short, the auxiliary coarse filter 38 is
It can be configured integrally or separately from the coarse filter 31, or alternatively, instead of providing this, a separate peripheral structure of the coarse filter 31, or by providing a rib on the opposing wall surface that comes into contact with the coarse filter 31, By having an uneven structure, it is possible to form an air passage as described above, and also to prevent the disposable filter 27 from coming into close contact with the wall surface as described later.

Note that the reference numeral 41 in the figure indicates dust.

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

First, as shown by the arrow in FIG. 1, when an airflow containing dust and the like flows through the suction port 24, the airflow flows into a disposable filter 27 that is set in communication with the suction port 24.

At this time, the disposable filter 27 inflates like a balloon due to the pressure of the air flow and the pressure of the collected dust colliding with each other, but if it is allowed to inflate freely without restrictions, the disposable filter 27 will expand. However, in the structure described above, the coarse filter 31 and the auxiliary coarse filter 38 have the role of suppressing the swelling of the disposable filter 27 to prevent it from bursting. It is something that will be fulfilled.

When the disposable filter 27 expands, the coarse filter 31 and the auxiliary coarse filter 38 completely adhere to the wall of an impermeable object such as the dust collection chamber 10a, and the air permeability of the disposable filter 27 in the close contact area In this respect, as mentioned above, the same effect can be expected by configuring the coarse filter 31 as a separate peripheral edge, or by providing wall helices or irregularities. It is.

Therefore, the disposable filter 27 is strongly protected by the coarse filter 31 and the auxiliary coarse filter 38, and filters the dust that flows in from the suction port 24 without hindering ventilation. dust 41 shown in Figure 1.
It is collected in a disposable filter 27, as shown in FIG.

The clean air that has passed through the disposable filter 27 is passed through a coarse filter 31, as shown by the arrow in the figure.
It passes through a fine filter 30, an electric blower 6, and is discharged to the outside from the main body case 1.

That is, when used in the manner shown in FIG. 1, the coarse filter 31 in this embodiment is
It serves to protect the strength of the disposable filter 27 and maintain the ventilation path, and, together with the fine filter 30, does not function as a filtration filter.

When the disposable filter 27 is full, the dust 41 captured in this way is removed by opening the lid body 18 by operating the lid clamp 19 as shown in FIG. The user can remove the disposable filter 27 by operating it, and throw it away together with the disposable filter 27 in a trash can or the like. The dust is disposed of in a very hygienic manner.

Furthermore, by discarding the disposable filter 27 clogged with dust 41 and installing a new spare disposable filter 27, the vacuum cleaner will once again exhibit the same suction performance as new, and only the conventional filter of the reusable type can be used. Compared to the vacuum cleaner we used, it maintains better performance and eliminates the hassle of cleaning the filter.

By the way, since the disposable filter 27 is a disposable type, if the disposable filter 27 becomes full during cleaning and you do not have a spare, or if you forget to buy a spare, you will not be able to use the vacuum cleaner. That's inconvenient.

However, according to the present embodiment, as shown in FIG. The dust is filtered, and then the fine dust (sand, dust, etc.) is captured by the fine filter 30, and the dust 4 is directly collected in the dust collection chamber 10a.
1, and when disposing of the dust, remove the dust case 10 side by operating the case clamp 13, take out the filter unit 29, and remove the dust accumulated in the dust collection chamber 10a, as shown in Fig. 4. All you have to do is throw away the dust 41.

As described above, according to the present embodiment, as a result, the first opening 1 provided in the dust collection chamber 10a
By arbitrarily selecting and opening either one of 0b and second opening 10c, different openings can be created.
Dust can be removed using a filter.

In each case, it is only necessary to remove either the case clamp 13 or the lid clamp 19, and compared to the conventional case in which both clamps 13 and 19 are removed, Its usability is far superior.

In this way, dust that is inconvenient for the disposable filter 27, such as metal pieces, nails, and rivets, can be captured by the filter unit 29, since they are likely to break no matter how protective the filter is.
On the other hand, if there is a problem with the filter unit 29,
For example, if there is a lot of fine dust that is difficult to dispose of and that tends to accumulate dust, it can be captured by the disposable filter 27 and treated in a sanitary manner. This provides an easy-to-use vacuum cleaner that can be used for many purposes.

The dust captured by the disposable filter 27 accumulates in the paper bag 27a of the filter 27, so open the lid 18 and take out the disposable filter 27.
There is no need to worry about cleaning the filter by simply throwing it away, and by simply replacing the spare disposable filter 27, cleaning can be started with suction performance as good as a new one.

Furthermore, if there is no spare disposable filter 27, or if for some reason, such as the type of object to be cleaned or the type of dust, filtration is performed using a reusable filter unit 29. Similar to the vacuum cleaner, remove the dust case 10 part from the main body case 1 side and operate the dust removal device 32 to remove dust from the clogged fine filter part, and then remove the filter unit 29 from the dust collection chamber. 10a, and the dust accumulated in the dust collection chamber 10a can be disposed of in a trash can or the like, and dust treatment can be performed in exactly the same manner as a conventional vacuum cleaner.

In any of the above cases, the lid body 1
It is sufficient to open the lid 8 or remove the dust case 10 from the main body case 1 side, and the overall operability is good.

In this embodiment, the disposable filter 27 is described as a paper bag made of paper such as filter paper, but the material is not limited to paper, and any material that is economically suitable can be used for its function. This does not preclude the use of any material that does not impair the quality of the product.

〔Effect of the invention〕

As described above, according to the present invention, the following effects can be expected.

(1) Since the disposable filter and filter unit, each of which has independent dust collection capabilities, are installed in the dust collection room, if you forget to install the disposable filter in the dust collection room, or if you forget to install the disposable filter in the dust collection room, Even if you cannot install a disposable filter in the dust collection room because you do not have a spare, you can use the coarse filter to capture coarse dust such as pieces of paper, and the fine filter to capture fine dust, so there is no problem. In addition to being able to carry out cleaning work, the first opening for inserting and removing the disposable filter is provided separately from the second opening for inserting and removing the filter unit, so the disposable filter can be placed upstream of the dust collection chamber regardless of the filter unit. Since the filter unit can be put in and taken out separately from the side, even if there is dust on the filter unit, you can easily replace the disposable filter without getting your hands dirty. By pulling out the filter unit from the second opening, both fine dust and coarse dust captured only by the filter unit can be easily disposed of from the second opening without installing the filter unit, making it extremely easy to use. is good.

(2) Disposable filters are pre-formed into a bag shape and can be simply installed upstream of the dust collection chamber from the first opening, so there is no need to create a bag-shaped disposable filter one by one before use. There is no need for a disposable filter structure, and there is no need for cutting or welding of disposable filters.In addition, the dust trapped in the disposable filters, which have been formed into a bag shape, can be removed by removing only the disposable filters from the dust collection chamber.
It is easy to use, as it can be thrown away with a disposable filter in a trash can or the like, allowing extremely hygienic disposal of dust without getting your hands dirty or creating dust.

[Brief explanation of the drawing]

FIG. 1 is a partially opened cross-sectional view showing a vacuum cleaner according to an embodiment of the present invention in a disposable filter locking state, and FIG. 2 is a partially opened cross-sectional view showing a dust processing state thereof. 3 is a partially opened sectional view showing the vacuum cleaner according to FIG. 1 in another usage state; FIG. 4 is a partially opened sectional view showing the vacuum cleaner in a dust processing state; FIG. 5 is a perspective view of a disposable filter to be used, FIG. 6 is an exploded perspective view of the filter unit, and FIG. 7 is an exploded perspective view of the dust case and its surroundings according to the above embodiment. 10...Dust case, 10a...Dust collection chamber, 1
0b...first opening, 10c...second opening, 24...
...Suction port, 27...Disposable filter, 29...
...Filter unit, 30...Fine filter, 31...Coarse filter.

Claims (1)

[Scope of Claims] 1. Disposable filters formed in advance into bag shapes, each of which has an independent dust collection ability, and a filter unit that has shape retention and can be used repeatedly are collected in a dust case. In a vacuum cleaner, the disposable filter and the filter unit are installed in the dust chamber in this order from the suction port side communicating with the dust collection chamber, and the filter unit includes a fine filter having a shape-retaining property, and a fine filter of the fine filter. a shape-retaining coarse filter disposed upstream to prevent coarse dust from adhering to the fine filter and to restrict swelling of the disposable filter; A vacuum cleaner characterized in that a first opening is formed through which the disposable filter is inserted and taken out, and a second opening through which the filter unit is inserted and removed is formed downstream of the dust collection chamber.