JPS58155828A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a vacuum cleaner that sucks dust into a paper bag, and more particularly to improving the ease with which the paper bag can be pulled out.

Conventionally, there was a method that used a paper bag to absorb dust, and if there was no paper bag, a cloth bag-like filter installed on the outside of the paper bag could also be used to collect dust, but in this case, when the paper bag was removed, the cloth bag also came out. There were downsides to come.

According to the present invention, in a vacuum cleaner having the above-mentioned structure, dust is collected in a dust collection case using a paper bag filter, and when the paper bag filter is pulled out and discarded, the dust collection case is pulled out along with the paper bag, making it difficult to handle. In the present invention, when the paper bag is pulled out, the dust collection case remains in the main case, and the dust collection case can be removed from the main case only when the dust collection case is used to collect dust.

In the present invention, in order to solve the above problems, a protrusion is provided on the outer periphery of the dust collection case, and when the paper bag is pushed in, the dust collection case is deformed and locked, and when the paper bag filter is pulled out with a pulling force of 2 kg or less, If it does not come off, and if you pull it with more force, the protrusion on the outer periphery of the synthetic resin dust collection case will be pushed by the main case and bend, allowing the dust collection case to be removed from the main body.

1 is a vacuum cleaner body case, 2 is a motor, 3 is a cord reel, 4 is a dust collector, 5 is a dust removal device, and 6 is a front lid device.

1 The main body case is formed by combining two synthetic resin parts that are divided into left and right halves at approximately the center. The interior is divided into a motor storage chamber 7, a cord winding device storage chamber 8, a collection/dust removal device storage chamber 9, a parts storage chamber 10, an exhaust chamber 11, and other chambers. Further, a handle 12 for transportation is integrally provided. Furthermore, various parts such as wheels 13, casters 14, and a pedal 16 for braking the cord winding device are attached. The collection/dust removal device storage chamber 9 portion has an outlet 1 opened to the outside so that the dust collection device 4 can be attached and removed.
7 is provided, and a front lid device 6 is attached to cover this outlet 17 so as to be openable and closable. 4. The dust collection device is constructed as follows.

A fine filter 19 for dust filtration is integrally provided at the bottom of a round shaft-shaped dust collection case 18 made of synthetic resin or the like. The fine filter 19 is divided into left and right parts at the center, and a striking plate 20 is fixed between each fine filter 19 by a fixing plate 21 and a screw 22. That is, fine filters 19 are arranged on both sides of the striking plate 20. Further, the fine filter 19 is formed by bending a filter material such as a nonwoven fabric or cloth into a wave shape, and the striking plate 20 is arranged without protruding beyond the height H of the wave shape. This striking plate 20 is configured to operate by engaging with a cam body of a dust removal device 5 to be described later, and to apply a strong blow to a receiving body 23 formed integrally with the dust collecting case 18 to generate vibration. ing.

A flange 24 is provided at the open end of the dust collection case 18, and a guide boss 25 is provided facing the flange 24 and serves as an attachment guide for a paper bag filter, which will be described later.

A rib 70 for preventing the dust collection case from falling off is provided on the upper outer wall of the dust collection case 18.

Reference numeral 26 denotes an airtight backing for inserting the dust collection case 18 into the storage chamber 9 through the outlet 17 of the main body case 1 and setting it in the main body case 1 in an airtight manner. has been done. 17 is a support plate 27 for holding and setting a paper bag filter, which will be described later, in the dust collection case 18, and is attached to the flange 2 of the dust collection case 18.
It is arranged in four parts so that it can be opened and closed so that about half of the opening can be closed. Reference numeral 28 denotes a coarse filter, which is a mesh filter made of nylon, polyethylene, etc., and is formed by integrally joining the vibration receiving body 29 and the vibration transmission plate 30. The vibration receiver 29 of the coarse filter 28 is fitted and held in the receiver 23 of the dust collection case 18 described above, and
3 is struck by the striking plate 20, the generated vibration energy is sensed, and the vibration is transmitted to the entire surface of the coarse filter 28 via the vibration transmitting plate 30.

31 is a paper bag filter made of a filter material such as Japanese paper or nonwoven fabric. This paper bag filter 31 is a disposable type filter that collects the suctioned garbage inside the bag-like interior and throws it away as it is.It prevents the dust from flying up during garbage disposal and performs garbage disposal in a sanitary manner. This makes maintenance and inspection of the filter part of the vacuum cleaner easier and allows the connection to always provide strong suction power.

A mounting plate 32 for setting the paper bag filter 31 is made of relatively thick paper such as cardboard, and has an inlet 33, a guide hole 34, a seal plate 35, etc. integrally formed therein.

5. The dust removal device is constructed as follows.

Numeral 36 is a holding plate for various gears made of synthetic resin or the like, and is held in the main body case 1 by a method such as fitting. 3
Reference numeral 7 denotes a face gear, which is a drive gear that rotates in conjunction with the rotation of the three-cord winding device to operate the dust removal device. Reference numeral 38 denotes a connecting gear that is integrally combined with the face gear and rotatably supported by the retaining plate 36. Reference numeral 39 denotes a dust removal gear that rotates while engaging with the connecting gear 38. This dust removal gear 39 comes into contact with a fine filter 19 provided at the bottom of the dust collection case 18, and rotates in contact with the back surface to generate impact vibrations. give,
A dust removal plate 40 for removing dust from the fine filter 19 is fixed with screws 41 or the like.

42 is a coupling gear that engages and rotates with the dust removal gear 39, and 43 is a coupling that transmits the rotational force received by the coupling gear 39 only in one direction to the rotating shaft 45 side. , are provided via a spring body 44.

That is, when pulling out the cord from the cord winding device 3, the rotational force received by the face gear 37 is transferred to the connecting gear 3.
8. The rotating shaft 45 is rotated through the dust removal gear 39 and the coupling gear 42, but the face gear 38 rotates in the direction in which the cord winding device 3 winds the cord with the force of the mainspring. Coupling 4 when
3, the rotating shaft 45 is configured not to rotate. 46 is a coupling that is fixed to the rotating shaft 45 with a screw 47 or the like and rotates integrally;
The cord winding device 3 is used only when the cord is pulled out by engaging the striking plate 20 provided in the dust collection case 18 described above.
The striking plate 20 is operated in conjunction with the 0 rotation, and the receiving body 23
It is designed to excite.

6 The front lid device is constructed as follows.

Reference numeral 48 denotes a front cover, which is attached to the main body case 1 so as to be openable and closable so as to cover the outlet 17 portion of the main body case 1. 4
9 is a front cover, which has 50 suction ports. A check valve 51 is disposed at this suction port 50 portion.

Reference numeral 52 denotes a clamp, which is disposed between the front lid 48 and the front cover 49 via a spring S3. This clamp 52 is for engaging the front cover 48 with the main body case 1 and holding it so that it can be opened and closed.

54 is a lid cover, and the airtight backing 26 fitted to the dust collection case 18 described above is inserted into the removal slot 1 of the main body case 1.
It is for holding in 7 parts.

Reference numeral 55 denotes a suction packing made of rubber, soft PVC, etc. that is fixed to the lid cover 54, and is attached to the paper bag filter 31.
The suction port 50 and the suction port 33 are brought into contact with the mounting plate 32 and serve to connect the suction port 50 and the suction port 33 in an airtight manner.

A spare paper bag filter 31 is stored in the 10-component storage room. Reference numeral 56 denotes a pocket lid for opening and closing the parts storage chamber 10, and is rotatably arranged in the main body case 1. Reference numeral 57 is a well-known dust indicator for displaying the amount of dirt accumulated and informing the user when it is time to dispose of the waste. Reference numeral 58 is a top cover placed on the top of the main body case L for decorative purposes. be.

Reference numeral 59 indicates a motor that is installed in a vibration-proof manner with anti-vibration rubber (large) 60 and anti-vibration rubber (small) 61 in the motor storage chamber 7, 62
A cord winding device is also disposed in the cord winding device storage chamber 8, and is used to pull and organize the 63 power cords into the main body case using the force of a spring. In this embodiment, the rotational power of the cord winding device 62 also serves as a driving source for the dust removal device 5 of each filter.

The present invention has the above configuration, and its functions and effects will now be described in detail.

The vacuum cleaner of the present invention is usually equipped with a 31 paper bag filter for cleaning.

The 31 paper bag filter is installed on the 25 guide boss of the 18 dust collection case and the 32 mounting plate of the 31 paper bag filter.
It is set by aligning the 4 guide holes and placing the lower side on the 27 support plate.

When the vacuum cleaner body with the paper bag filter 31 set is operated in this way, the dust (garbage) sucked in from the suction port 50 flows through the suction port 33 of the paper bag filter 31 and enters the bag of the paper bag filter 31, leaving only the dust. is filtered and the clean air flow is passed through the coarse filter 28 and the fine filter 19.
It passes through the exhaust chamber 11 of the main body case 1 and is discharged from the exhaust port. As described above, the dust filtration system of the vacuum cleaner of the present invention has a three-stage filter structure including the paper bag filter 31, the coarse filter 28, and the fine filter 19, so the first stage paper bag filter 31 completely removes all the dust. Even if there is dust that has passed through the paper bag filter 31 due to various reasons such as not being filtered or the paper bag filter 31 being damaged, the second stage coarse filter 28 or the third stage Since the airflow is filtered by the fine-mesh filter 19, the airflow discharged from the exhaust port of the main body case 1 is much cleaner than that of conventional vacuum cleaners, which greatly contributes to sanitizing the exhaust air.

Next, the waste filtered in this way is transferred to the paper bag filter.
31 or the back surface of the fine filter 19, the ventilation resistance at that part gradually increases, the suction power of the vacuum cleaner decreases, and the vacuum cleaner no longer functions as a vacuum cleaner.However, in the vacuum cleaner of the present invention, the cleaning When the cord 62 is pulled out at the beginning, the cord reel 62 rotates, and in conjunction with this rotational force,
The face gear 37 rotates, which causes the dust removal gear 39 to rotate.
is rotated, the dust removal plate 40 presses and slides on the back surface of the fine filter 19, vibrates, and the fine filter 19 first removes dust attached to the surface. At the same time, since the coupling gear 42 is rotating, the cam 46
actuates the striking body 20 and the receiving body 23 is vibrated by impact, thereby transmitting the vibration to the entire surface of the dust collection case 18, and at the same time transmitting the vibration to the coarse filter 28 fitted to the receiving body 19. Vibration is also transmitted to the vibration transmission plate 30 via the body 29. In other words, paper bag filter 3
Dust collection case 18 and coarse filter 2 in contact with 1
8 is vibrated, and this vibration is transmitted to the back surface of the paper bag filter 31, so that the dust attached to the inner surface of the paper bag filter 31 is also removed by the transmitted vibration.

Further, when the cord 62 is wound into the main body after cleaning, the fine filter 19 is cleaned by the dust removal plate 40 attached to the dust removal gear 39, but the cam 46 is moved by the action of the coupling 43. Since it does not rotate and the impacting body 20 is not operated, the paper bag filter 31 is not cleaned.

As described above, in the vacuum cleaner of the present invention, the dust attached to each filter is automatically removed in conjunction with the operation of inserting and removing the power cord 62 at the beginning and end of cleaning, so that the suction force is always strong. It is something that can be sustained.

However, if the paper bag filter 31 eventually becomes full of dust, the suction power will not recover no matter how much dust removal work is performed.

At this time, open the front lid 48, bend the seal plate 35 part of the Oz paper bag filter 31, cover the suction port 33, and seal it, then hold the mounting plate 32 part and attach the paper bag filter 31 to the main case Pull it out from inside the dust collection case 18 that is still set inside.

At this time, the paper bag filter 31 is full, so when the electric blower is stopped, the compressed dust tries to return to its original state and presses the paper bag filter 31 against the inner wall of the dust collection case. Frictional force acts within the paper bag filter 18, and when the paper bag filter is pulled out, the dust collection case 18 also tries to come out at the same time.At this time, the paper bag filter 31 pushes the support plate 27 apart, as shown in FIG. As the dust collection case 18 is pulled out, the dust collection case 18 is pried and pushed upward a little.This special dust case 18 is forced to pull out by the paper bag filter 31. This protrusion that catches on the paper bag filter acts as a stopper, and the dust collection case 18 is not pulled out, but only the paper bag filter 31 is pulled out. If the protrusion was not present, the dust collection case 18 would be pulled out at the same time as the paper bag filter, so the dust collection case 18 would not be pulled out. The action of separating the paper bag filter from the dust case 18 is added, and if the electric blower 59 is rotated and the dust is sucked with the dust collection case 18 forgotten, the fine filter 19 and the coarse filter 28 attached to the dust collection case 18 will be removed. Also, since the paper bag filter 31 is not attached, problems such as dust directly entering the electric blower 59 and damaging the electric blower occur.

Once the paper bag filter 31 is thrown away together with the garbage accumulated inside, it can be disposed of in a trash can or the like, and the garbage disposal operation is completed, making it possible to dispose of garbage very easily.

Another feature of the present invention is that the paper bag filter 31 can be disposed of as follows. That is, after opening the front lid 48 and closing the suction port 32 with the seal plate 35, pull out the dust collection case 18 from the main body case 1 with the paper bag filter 31 still set, and hold it with a trash can, etc. Then, by turning the dust collection case 18 upside down and dropping the paper bag filter 31 into the trash can, the paper bag filter 31 and the garbage can be thrown away. Normally, the former method is used to remove the paper bag filter 3 without removing the dust collection case 18 from the main body case 1.
Although the method of pulling out only the paper bag filter 31 and disposing of the garbage as it is works well and makes it easy to dispose of the garbage, for example, if a large amount of heavy garbage such as metal pieces, earth and sand is sucked in, the paper bag filter 31 may not be able to withstand the weight of the garbage and may break if pulled out alone, causing the garbage to scatter, or
If the paper bag filter 31 is torn during suction due to some kind of trouble, if you try to pull out the paper bag filter 31 to dispose of the garbage, the garbage will scatter outside and become unsanitary. In such a case, as in the latter case, it is convenient to pull out the paper bag filter 31 together with the dust collection case 18 and dispose of the garbage in a sanitary manner.

After the garbage disposal is finished in this way, the pocket lid 56
By opening the bag, taking out the paper bag filter 31 for replenishment, and setting it in the dust collection case 18, cleaning can be done again.

Next, if there is no paper bag filter 31 to replenish due to forgetting to buy one or the like, the vacuum cleaner of the present invention can function as a vacuum cleaner without setting the paper bag filter 31.

In other words, when the paper bag filter 31 is not set, the coarse filter 28 filters relatively large debris such as cotton dust and paper waste, and then the fine filter 19 filters out fine debris such as dust and dirt. It is possible to perform filtration similar to that of

At this time, garbage can be disposed of by opening the front lid 49, pulling out the dust collection case 18 from the main case l, taking it to a trash can, and throwing away the garbage accumulated inside the dust collection case 18. It is something.

According to this embodiment, there are the following effects.

1. The dust collection case is made difficult to remove, so there is no chance of accidentally removing the dust collection case or forgetting to put it back in, which will cause dust to be sucked directly into the electric blower and damage the electric blower.

2. The dust collection case is made difficult to remove, making it easier to remove and attach paper bags, improving garbage disposal efficiency.

3. If the dust collection case is removed from the main body when disposing of garbage, the dust removal gear, electric blower, etc. are exposed, and children may insert their hands or foreign objects into the product, causing accidents or malfunctions.
The dust collection case is made to be difficult to remove, so it is safe even when using paper bag filters, which is the most common method of use.

4. Compared to stoppers using general springs, the stopper of the present invention has advantages such as lower cost because it does not require any parts, and has a simple structure and can be molded integrally with the dust collection case, so there are no troubles. .

According to the present invention, the ease of handling the paper bag filter when disposing of garbage is improved, troubles caused by removing the dust collection case from the main body can be prevented, and productivity is further improved.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view of the entire vacuum cleaner, Figure 2 is a diagram of parts around the main body case, Figure 3 is a diagram of parts related to the filtration filter (dust collection section), and Figure 4 is a diagram of parts related to the dust removal mechanism. Diagram, Fig. 5 is a sketch of the front lid related parts, Fig. 6 is an explanatory diagram of the state of use when disposing of garbage, Fig. 7 is a sketch of the dust collection section, and Fig. 8 is a sketch of the main body case when disposing of garbage. Fig. 9 is a sketch showing the storage condition of the paper bag filter, Fig. 10 is a sectional view showing the paper bag filter installed incorrectly, and Fig. 11 is the installation condition and dimensional relationship of the pumper. Fig. 12 is a sketch showing the production process of paper bag filters, Fig. 13 is a drawing showing the dimensional relationship of the backflow preventer, Fig. 14 is a conventional example with the backflow preventer removed, and Fig. 15 is a coarse filter. A sketch of the filter incorporated into the dust collection case. 18...Dust collection case, 31...Paper bag filter, 48...Front lid, 59...Transmission blower, 70...Rib. 3rd prisoner 2nd prisoner 70' Plsrg 70 $ rr c 12th ( 13th prisoner '1114 Bulletin country procedural amendment (method) % formula % Display of case 1982 Patent application No. 87981 Invention Relationship to the vacuum cleaner amendment case Patent applicant address 5-1 Marunouchi-chome, Chiyoda-ku, Tokyo
Name (510) Hitachi, Ltd. Representative 3
1) Osamu Katsu Shigeyo (Place: 5-1, Marunouchi-chome, Chiyoda-ku, Tokyo) Subject of amendment: Article 18j11 of the Memorandum of Understanding. Figure 1 is a vertical cross-sectional view of the entire vacuum cleaner, and Figure 2 is a vertical cross-sectional view of the entire vacuum cleaner. Parts diagram, Figure 3 is a diagram of parts related to the filtration filter (dust collection part), Figure 4 is a diagram of parts related to the dust removal mechanism, Figure 5 is a diagram of parts related to the front lid, and Figure 6 is a diagram of the garbage disposal. Il! Figure 7 is a sketch of the dust collection section, and Figure 8 is the garbage disposal with the main case upright.
Fig. 9 is a sketch showing the storage condition of the paper bag filter, Fig. 1O is a cross-sectional view showing the paper bag filter installed incorrectly, and Fig. 11 is the attached state of the pants (-). and dimensional relationship [Partial sectional view shown, 1st
Figure 2 is a sketch of the paper bag filter production plant, No. 1.
Figure 3 shows the dimensional relationship of the backflow preventer, Figure 14 shows a conventional example with the backflow preventer removed, and Figure 15 shows a sketch of a coarse filter assembled into a dust collection case.

Claims (1)

[Claims] 1. Set consists of an electric blower, a main case with a built-in electric blower, a main case, a front cover provided in the front opening, a dust collection case to be stored in the main case opening, and a dust collection case and front cover. Consists of a paper bag filter.
A vacuum cleaner having a removable dust collection case, characterized in that the dust collection case has one or more ribs protruding higher than the opening of the main case on the outer wall thereof.