JPH0322169B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a vacuum cleaner in which a dust collection case housing a paper bag filter is provided in a dust collection chamber of the main body case so that the dust collection case can be freely inserted into and taken out from the dust collection chamber of the main body case. This invention relates to a vacuum cleaner that has good workability when pulled out from a dust collection case.

[Conventional technology]

Conventionally, a disposable paper bag filter and a shape-retaining fine filter that can trap fine dust and can be used repeatedly are installed in the dust collection room. When the vacuum cleaner is not installed in a dust collection chamber, a vacuum cleaner is known that collects dust using a shape-retaining fine-mesh filter (for example, Japanese Patent Laid-Open No. 56-28733
Publication No.).

[Problem to be solved by the invention]

In the conventional vacuum cleaner, the paper bag filter and the fine filter are each pulled out from the dust collection chamber separately, and when the fine filter is pulled out from the dust collection chamber, the paper bag filter cannot be pulled out at the same time. It was difficult to handle. Moreover, in the conventional vacuum cleaner, if the paper bag filter is torn during cleaning, the dust collected inside the paper bag filter will scatter into the dust collection chamber and adhere to the wall of the dust collection chamber. Therefore, when the paper bag filter is installed in the dust collection chamber again for cleaning, it is necessary to remove the dust adhering to the walls of the dust collection chamber, making it extremely difficult to handle.

Therefore, we made the fine filter into a container shape, that is, a dust collection case, and designed the dust collection case to be able to be put in and taken out of the dust collection chamber of the main case, and also have a structure that allows the paper bag filter to be taken in and out of the dust collection case. Suggest a vacuum cleaner
After conducting various experiments, we found the following problems.

That is, when dust is collected in a dust collection case using a paper bag filter and the paper bag filter is pulled out and thrown away, the dust collection case is pulled out along with the paper bag filter, resulting in poor workability.

[Means to solve the problem]

The present invention has been made to solve the above problems, and includes a main body case having a dust collection chamber, and a dust collection that can be taken in and out of the dust collection chamber through an opening of the dust collection chamber and that can capture fine dust. a case, and a disposable paper bag filter that is housed in the dust collection case so as to be freely put in and taken out; The vacuum cleaner is characterized in that it is provided with a pull-out blocking body that locks onto a wall and prevents the dust-collecting case from being pulled out from the opening of the dust-collecting chamber.

[Effect]

In the present invention, when the paper bag filter is pulled out, the dust collection case remains in the dust collection chamber of the main case, and the dust collection case can be removed from the dust collection chamber of the main case only when the dust collection case is used to collect dust. can. A pull-out prevention body is provided on the outer wall of the dust collection case, so when inserting the paper bag filter, it is locked by the deformation of the dust collection case, and when the paper bag filter is pulled out, the pulling force of the paper bag filter is not enough to prevent the collection of the main case. The dust collection case cannot be removed from the dust chamber opening. When the dust collection case is pulled strongly, the pull-out prevention body of the dust collection case is pushed against the wall of the dust collection chamber of the main body case and bent, and is removed from the opening of the dust collection chamber of the dust collection case.

〔Example〕

An embodiment of the present invention will be described in detail.
Inside the main body case 1 are a motor storage chamber 2 that stores the motor, a winding device storage chamber 3 that stores the cord reel, a dust collection chamber 6 that stores the dust collector 4 and the dust removal device 5, a parts storage chamber 7, and an exhaust chamber. It is divided into 8 class rooms. The dust collection chamber 6 is provided with an opening 10 for taking the dust collection case 9 in and out.
A front lid 11 is attached so as to be openable and closable so as to cover 0. The dust collection case 9 is formed into a box shape of synthetic resin or the like, and is integrally provided with a fine filter 12 for filtering dust. A flange 13 is provided at the opening of the dust collection case 9.
A protrusion 15 that serves as a mounting guide for the paper bag filter 14 is provided facing the paper bag filter 14.

When pulling out the paper bag filter 14 after dust collection from the dust collection case 9, remove the dust collection case 9 from the main body case 1.
A drawer blocker 2 for keeping the dust in the dust collection chamber 6 of the
9 is provided on the outer wall of the dust collection case 9. This pull-out blocker 29 has a mountain shape that is loose in the mounting direction and steeply sloped in the pull-out direction, and when mounted, the elasticity of the main body case 1 is used to bend the opening 10, which is a part of the inner wall of the dust collection chamber 6. It is locked to the part. An airtight packing 17 is fitted and held on the flange 13 of the dust collection case 9 for inserting the dust collection case 9 into the dust collection chamber 6 through the opening 10 of the dust collection chamber 6 and setting it in the main body case 1 in an airtight manner. has been done. A support plate 18 for holding the paper bag filter 14 in the dust collection case 9 is openably and closably arranged at the opening of the dust collection case 9 so as to close about half of the opening. The paper bag filter 14 is made of a filtering material such as non-woven fabric, and is a disposable filter that collects the dust sucked into the bag-like interior and discards it as is.It prevents dust from flying up during dust treatment, and allows for hygienic dust treatment. In addition, the filter part of the vacuum cleaner can be easily held and inspected, and strong suction power can be maintained at all times.

The paper bag filter 14, as shown in FIG.
It has a mounting plate 19 for setting made of relatively thick paper such as cardboard, and the mounting plate 19 is integrally formed with a suction port 20, a guide hole 21, a seal plate 22, etc.

As shown in FIG. 1, the front cover 11 of the main body case 1
has a front cover 24, a suction port 25, and a lid cover 26, and is attached to the main body case 1 so as to be openable and closable so as to cover the opening 10 of the dust collection chamber 6. A backflow prevention valve 16 is installed to prevent dust from flowing back into the suction port 25.
is provided.

As shown in an enlarged view in FIG. 7, 27 is a clamp for engaging the front lid 11 with the main body case 1 and holding it so that it can be opened and closed. The lid cover 26 is arranged inside the front lid 11, and when the front lid 11 is closed, the airtight packing 17 fitted to the dust collection case 9 is placed around the periphery of the opening 10 of the dust collection chamber 6. Press it against the A suction packing 23 fixed to the lid cover 26 and made of rubber, soft vinyl chloride, etc.
contacts the mounting plate 19 of the paper bag filter 14 to airtightly connect the suction port 25 and the suction port 20.

In this embodiment, the paper bag filter 14 is usually attached to perform cleaning, and the paper bag filter 14 is placed so that the guide hole 21 of the mounting plate 19 is aligned with the protrusion 15 of the dust collection case 9, and the lower side is placed on the support plate 18. It is set by When the vacuum cleaner is operated with the paper bag filter 14 set, the dust sucked in through the suction port 25 flows into the bag through the suction port 20 of the paper bag filter 14, and only the dust is filtered, and the clean air flows through the coarse filter. 28 and a fine filter 12, and is discharged through the exhaust chamber 8 of the main body case 1.

According to this embodiment, the dust filtration system is a dust collection device 4 that includes three stages of filters: a paper bag filter 14, a coarse filter 28, and a fine filter 12. Even if all the dust is not completely filtered out or if the paper bag filter 14 is damaged, even if some dust passes through the paper bag filter 14 for various reasons, it will still be filtered through the second stage coarse filter 28 or the second stage coarse filter 28 or the second stage coarse filter 28. It is filtered by a fine filter 12 in the third stage.

When the paper bag filter 14 is full of dust, the front cover 11 is opened and the seal plate 22 of the paper bag filter 14 is bent and the suction port 2 is
After closing the lid and sealing it, holding the mounting plate 19, pull out the paper bag filter 14 from the dust collecting case 9 while it is set in the main body case 1. At this time, the paper bag filter 14 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 14 against the inner wall of the dust collection case 9. paper bag filter 14
Frictional force acts between the paper bag filter 14 and the dust collection case 9, and when the paper bag filter 14 is pulled out, the dust collection case 9 also tries to come out at the same time. At this time, the dust collection case 9 is
As shown in the figure, the paper bag filter 14 is connected to the support plate 1.
As the paper bag filter 14 is pulled out while pushing out the dust collection case 9, the dust collection case 9 is pried and pushed upward a little. The pull-out blocker 29 acts as a stopper. Therefore, the dust collection case 9 is not pulled out, but only the paper bag filter 14 is pulled out. Without the pull-out blocker 29, the dust collection case 9 would be pulled out at the same time as the paper bag filter 14, and the paper bag filter 14 would have to be separated from the dust collection case 9, which would also cause the user to forget to attach the dust collection case 9. Become.

By discarding the paper bag filter 14 together with the dust accumulated inside in this manner into a dust box or the like, dust disposal can be carried out very easily.

Alternatively, the paper bag filter 14 can be disposed of as follows, which is one of the features of this embodiment. That is, after opening the front lid 11, the suction port 20 is closed with the seal plate 22, and with the paper bag filter 14 still set, the dust collection case 9 is pulled out from the dust collection chamber 6 of the main body case 1, and the dust collection case 9 is pulled out to the dust box. You can take it with you, turn the dust collection case 9 upside down, and throw away the paper bag filter 14 and the dust.

Normally, the former method is sufficient to pull out only the paper bag filter 14 without removing the dust collection case 9 from the main body case 1 and dispose of the remaining dust, and it is also easy to dispose of the dust.
If a large amount of heavy dust such as earth and sand is sucked in, the paper bag filter 14 may not be able to withstand the weight of the dust and may break if pulled out alone, causing the dust to scatter, or if the paper bag filter 14 is removed during dust pickup due to some accident. If the filter 14 is torn, pull out the paper bag filter 14 and remove the dust.
Since dust scatters and is unsanitary, in such a case, it is convenient to pull out the paper bag filter 14 together with the dust collection case 9 and dispose of the dust, as in the latter method, so that the dust can be disposed of hygienically.

Next, if there is no paper bag filter 14 to replenish due to forgetting to buy one or the like, the present embodiment can function as a vacuum cleaner without setting the paper bag filter 14.

In other words, when the paper bag filter 14 is not set, the coarse filter 28 filters relatively large dust such as cotton dust and paper waste, and then the fine filter 12 is used.
This filter can perform the same filtration as a conventional vacuum cleaner that filters fine dust such as sand and dirt.

To dispose of dust at this time, open the front lid 11, pull out the dust collection case 9 from the dust collection chamber 6 of the main case 1, carry it to a dust box, etc., and throw away the dust accumulated inside the dust collection case 9. This can be done by any method.

〔Effect of the invention〕

According to the present invention, since it is configured as described above, the following effects can be achieved.

(1) The dust collection case is made difficult to remove from the dust collection chamber of the main case by using a pull-out blocker, which reduces the chance of accidentally leaving the dust collection case removed from the dust collection chamber, and allows the electric blower to collect dust directly. This reduces the risk of damaging the electric blower.

(2) Since the dust collection case is made difficult to be removed from the dust collection chamber of the main case by the drawer prevention body, it is easy to remove and install the paper bag, and dust disposal is improved.

(3) If the dust collection case is removed from the dust collection chamber of the main case, foreign objects may be inserted into the electric blower.
This may cause an accident or malfunction, but since the dust collection case is difficult to be removed from the dust collection chamber of the main case with a pull-out preventer, when using a paper bag filter, which is the normal method, it is difficult to remove the dust collection case. It is safe because the case does not come off the dust collection chamber of the main case.

With these effects, a vacuum cleaner can be obtained which improves the ease of handling the paper bag filter during dust disposal and prevents troubles caused by removing the dust collection case from the dust collection chamber of the main body case.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a vertical sectional view of the entire vacuum cleaner, Fig. 2 is an exploded perspective view of parts related to the dust collection case, Fig. 3 is a perspective view of a paper bag filter, and Fig. 4 is a longitudinal sectional view of the entire vacuum cleaner. The figure is a perspective view of the dust collection case with the paper bag filter set, Figure 5 is an explanatory diagram of the usage state when disposing of garbage, and Figure 6 is an explanatory diagram of the usage status of the dust collection case with the main case upright and garbage disposal. , FIG. 7 is a partially enlarged sectional view of parts related to the drawer blocker. 1...Main body case, 6...Dust collection chamber, 9...Dust collection case, 10...Opening, 14...Paper bag filter, 29...
Drawer blocker.

Claims (1)

[Claims] 1. A main body case having a dust collection chamber, a dust collection case that can be taken in and out of the dust collection chamber through the opening of the dust collection chamber and that can capture fine dust, and a disposable case that can be freely put in and taken out of the dust collection case. A paper bag filter is provided on the outer wall of the dust collection case, and when the paper bag filter is pulled out alone from the dust collection case, it is latched to the wall of the dust collection chamber so that the dust collection case is closed to the dust collection chamber. A vacuum cleaner characterized in that a vacuum cleaner is formed with a pull-out prevention body that prevents the vacuum cleaner from being pulled out from an opening of the vacuum cleaner.