JPH07289484A - Vacuum cleaner with storage area for dust collection bag - Google Patents

Abstract

PURPOSE: To constitute a vacuum cleaner equipped with a chamber with a support plate for a dust bag so as to make the cleaner be easily operable and preferable on improving hygiene. CONSTITUTION: This vacuum cleaner is equipped with a chamber 8 for a dust bag with a cloth cover 14 on the outside and a lattice structure 16 in the inside, an electret filter 17 placed between the lattice structure 16 and the cloth cover 14, an upper support frame 15 formed for a support plate of the dust collecting bag, and a support frame 15 to which the lattice structure 16 is extractably connected. The electret filter 17 is fixed to be mounted on the lattice structure 16 or the support frame 15 to engage and connect the support frame 15 with a retaining frame 13 to fix the cloth cover 14. In that case, it is required for releasing the engaging connecting part to elastically inward deviate the support frame part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention includes a storage chamber for a dust bag having a support plate having a cloth cover on the outside and a lattice structure on the inside, and an electret. It relates to a vacuum cleaner in which a filter is arranged and which forms an upper support frame for a support plate of a dust bag.

[0002]

2. Description of the Related Art Vacuum cleaners of this type, which have a storage chamber for a dust bag with a support plate, are known, for example from DE 39 11 580. Shown here is a vacuum cleaner with an accessory dust bag that can be taken out after opening and disconnecting the protective connection from the storage chamber. In that case, the dust collecting bag and the supporting plate are loaded together with the upper supporting frame of the storage chamber.
This storage chamber is not described in detail in the above patent application. However, such a storage chamber is known, which has an outer cloth cover and an inner grid structure, and in which an electret filter is arranged between the grid structure and the cloth cover. If you do not take proper measures, especially if you do not properly load the dust bag into the storage chamber, or if you load a dust bag that does not match the dimensions, the electret filmer will become dirty over time. Undesired for hygiene reasons.

[0003]

SUMMARY OF THE INVENTION The object of the invention is to provide a vacuum cleaner of the type mentioned at the outset with a storage chamber for a dust bag having a support plate which is easier to handle and has a more desirable construction with regard to improving hygiene. To do.

[0004]

According to the present invention, there is provided a storage chamber 8 for a dust collecting bag 9 having a support plate 10 having a cloth cover 14 on the outside and a lattice structure 16 on the inside. In the electric vacuum cleaner 1 in which the electret filter 17 is arranged between the lattice structure 16 and the cloth cover 14 to form the upper support frame 15 for the support plate 10 of the dust collecting bag 9, the lattice structure 16 is supported. It is removably connected to the frame 15 and the electret filter 17 is fixedly mounted on the lattice structure 16 or the support frame 15, and the support frame 15 is locked and connected to the holding frame 13 for fixing the cloth cover 14, in which case This has been solved by the need to elastically offset a portion of the support frame 15 inward to release the stop connection.

Further advantageous configurations according to the invention are described in the dependent claims.

[0006]

With such a construction, an electric vacuum cleaner is formed which has a storage compartment for the dust bag with a support plate, which is improved in particular in terms of handling technology and above all for improved hygiene. This is done by connecting the lattice structure to the support frame in a well-known manner, the electret filter is fitted to the lattice structure or the support frame, and the support frame having the holding frame to which the cloth cover is fixed is locked and coupled. Will be resolved. In that case, it is necessary to elastically bend the part of the support frame inward to release the locking connection.

With this structure, the storage chamber is formed of two parts. In this case, one part has a holding frame for fixing the outer cloth cover, and the other part has a support frame of a lattice structure connected to the support frame for mounting the electret filter. Thus, the electret
The filter can be easily removed from the storage compartment and cleaned or replaced. To this end, the locking connection between the holding frame of the storage chamber and the support frame is released by elastically bending the part of the support frame inward. The support frame can then be lifted from the holding frame with the lattice structure and the electret filter.
Since it is necessary to elastically bend the part of the support frame inward, it is necessary to remove the dust bag from the storage chamber in advance. This is because otherwise, the support plate of the dust bag attached to the support frame prevents the portion of the support frame from bending inward. The support frame, as is well known, has a recessed orientation mark on the inside of the abutment surface of the support plate of the dust bag to ensure that the dust bag is correctly positioned within the support frame.

In one advantageous configuration, in the case of a support frame having a substantially rectangular plane, the locking projections are arranged on the longitudinal sides, in particular in the approximate center of the support frame. By tilting this locking projection, the electret filter fixed to the support frame and the lattice structure can be taken out from the storage chamber. In that case, a part of the support frame is elastically formed at the locking projection. In this case, it is particularly advantageous if two locking projections that are substantially opposite are provided. In this way, one-handed operation is possible. In this case, the two engaging projections of the supporting frame facing each other can be bent inward with one hand. In this way, the locking connection with the holding frame is released.

Furthermore, the locking connection is optimized by forming the locking projection in a dovetail type. However, it is also conceivable that the locking projection is formed in a trapezoidal shape, for example. The locking connection between the support frame and the holding frame is formed by using a simple means, so that a rest storage part is provided in the holding frame, and this locking storage part corresponds to a locking protrusion. And is formed so as to open upward. In this case, it is advantageous if the dovetail-type locking ties are arranged outside the support frame. This locking projection fits into a correspondingly shaped locking housing at the holding frame. Due to the dovetail or trapezoidal configuration, bending the locking projection inward beforehand does not react when pulling out the support frame from the holding frame. In the upward direction, that is, in the take-out direction, a large number of edges of the locking projections of the dovetail groove are supported by the edges of the locking housing.

It is always necessary to move the locking projections inward from the locking housing. This is only done by removing the dust bag with the support plate, as already mentioned. In-place attachment of the dust bag to the support frame is provided by the dimple-like orientation marks provided on the support frame, as previously described. In order to ensure that the supporting frame with this orientation mark is correctly aligned in the holding frame, the two opposing locking projections and the locking housing arranged in the holding frame have different sizes and shapes. Other arrangements can be configured as well. The support frame can be loaded into the holding frame only when the locking protrusions in the locking housing are correctly aligned with each other. In that case, the locking projections sometimes enter the field locking frame. After that, the dust bag together with the support plate can be loaded in the correct position. However, if you accidentally load the support frame,
At least one locking projection does not enter the locking housing of the holding frame facing this projection. Therefore, this part of the support frame remains bent further inwards. Due to this bending, the dust bag together with the support plate is not loaded into the support frame.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in more detail with reference to the drawings showing the embodiments. The vacuum cleaner 1 shown in FIG. 1 is designed as a manual device. The vacuum cleaner has a case 2 on which the handle 3 of the device is connected with a terminal grip 4. In the transition area between the handgrip 4 and the handle 3 of the device there is an on / off switch 5. Reference numeral 6 is attached to the connection terminal of the electric cable.

The case 2 is divided into a motor housing 7 and a storage chamber 8 which extends above the motor housing 7 and stores a dust collecting bag 9. The motor blower is not shown in detail in the drawing. A support plate 10 is provided in the dust collecting bag 9 on the side opposite to the motor housing 7. This support plate 10 is connected by a pipe to the air passage of the blower.

The motor housing 7 is transferred to the pipe coupling on the lower side. The cup rig forms an air flow connection with the suction nozzle 12. Regarding the suction nozzle 12, a so-called suction / brush nozzle having a brush roller at the nozzle port is important. This brush nozzle rotates via a separate drive.

The blower motor operates from bottom to top, thereby exerting pressure on the dust air in the dust bag 9 which is arranged on top of the motor housing 7. Case 2
The cross section of is formed in a consistently long rectangle with a narrow side similar to the slightly curved wide side. In FIG. 1, the vacuum cleaner is viewed from the wide side.

Particularly, the storage chamber 8 shown in FIG. 2 is substantially formed of two parts. On the other hand, there is a holding frame 13 to which a cloth cover 14 is attached on the outside. On the other hand, there is a support frame 15 mounted on the holding frame 13, which has a cage-like lattice structure 16 on the underside. The lattice structure 16 extends in the same direction as the cloth cover 14 and has substantially the same length in the installed position of FIG.
Used to tighten the cloth cover 14. Furthermore, this grating structure 16 is completely covered with an electret filter 17. In that case, the electret filter 17 is fixed in the region of the support frame 15 in a groove 18 on the underside of the frame. Both the grating structure 16 and the electret filter 17 covering this one bottom part 3
4 is formed. The holding frame 13 having a cross section of the motor housing has a handle 19 in a narrow width in an area facing the cloth cover 14. With this handle 19, the storage chamber 8
Can be swiveled from the operating position to the filter removal position of the broken line view of FIG. For this purpose, a locking connection (not shown) can be released in the motor housing 7 by means of this handle 19. On the narrow side facing the handle 19, the holding frame 13 accordingly has a rotary shaft 20. This rotary shaft 20 is also held between two bearing holes on the motor housing side (not shown). On the two longitudinal sides 21, the holding frames 13 each have a dovetail-shaped locking housing 22 in the center. In this case, the wide width of the dovetail faces the cloth cover 14, and the locking storage portion 22 is rounded on the narrow side of the dovetail, that is, the holding frame 1.
3 is arranged so as to be opened toward the opposite side of the cloth cover 14 from the cloth cover 14. This means that the locking storage part 22 is formed so as to open upward in FIG. The inside of the holding frame 13 is formed into a smooth surface.

The support frame 15 is fitted to correspond to the cross section of the holding frame 13, so that it can be mounted on the holding frame 13 as shown in FIG. Support frame 15
Has a dovetail-shaped locking projection 24 approximately at the center of its longitudinal side 23. This dovetail groove is used for each locking storage portion 2 of the holding frame 13.
It corresponds to 2. The support frame 15 is elastically formed in the region of its longitudinal side 23. Inside the edge, the support frame 15 has edge steps 25 spaced approximately 15 mm from the upper corner. On both narrow sides there is an orientation mark in the form of a depression 16 on this edge step. in this case,
The depression 26 is located at the center of the narrow side portion of the step 25 of the edge of the holding frame 13 facing the handle 19, and on both sides of the imaginary center line of the support frame 15 between the two depressions of the narrow side facing the rotating shaft 20. It is arranged.

In the regions on both sides of the locking projection 24, locking projections 27 are provided on the inner surface of the long side surface 23 to block upward. A cage-shaped lattice structure 16 is formed on the lower side of the support frame 15 along the edge thereof. The lattice structure 16 is covered with the electret filter 17 as described above. The filter is fixed at its upper end in a groove 18 in a collar 28 which extends below the support frame 15.

When the support frame 15 is loaded into the holding frame 13, the locking projections 24 are fitted into the corresponding locking storage portions 22 of the holding frame 13. In that case, since the locking storage portion is formed in a dovetail type, the support frame 15 is protected against being easily pulled out. In this position, the airtight seal between the support frame 15 and the holding flakes 13 is provided by a round packing 29 fixedly arranged on the inner wall of the holding frame 13.

The dust bag 9 to be loaded in the storage chamber 8 has the support plate 10 as already described. The common plane of this plate corresponds to the cross section of the support frame 15. The support plate 10 has a circular opening 30. This opening is arranged in a region facing the handle 19 of the storage chamber 8 in the assembled state of FIG. Through this opening 30, a connecting pipe (not shown) enters the use position of the electric vacuum cleaner 1 of FIG. Particles of dust and dirt are supplied to the dust collecting bag 9 through this connecting pipe. A ring-shaped tongue-shaped packing 31 is provided in the opening 30 to hermetically seal between the connection pipe and the opening 30. On the side portions in the longitudinal direction, one fitting opening 32 is provided in each of the support plates 10 at substantially the center thereof. The mating opening is cut diagonally,
It is configured to open toward the corresponding inner wall of the support frame 15. Support plate 1 for removing dust bag 9
The dust collecting bag 9 can be easily grasped by sandwiching the central portion of 0, and can be taken out from the storage chamber 8 or the cage-shaped lattice structure 16. On the narrow side, the support frame 1 is attached to the other support plate 10.
There is a trapezoidal protrusion 33 corresponding to the depression 26 of 5. Figure 3
In the installed position of, the dust collecting bag 9 having the support plate 10 is loaded on the support frame 15. In this case, the support plate 1
0 is supported on the edge step 25 and is fitted from behind by the locking projection 27. When the support plate 10 is in the correct position with respect to the support frame 15, the protrusion 33 of the support plate 10 is in the recess of the support frame 15 attached to this support plate.

As is well known, the electric vacuum cleaner 1 is provided with a safety device in a region where the motor housing 7 moves to the storage chamber 8. In this device, for example, when a spring-biased finger or the like returns the storage chamber 8 to the use position shown in FIG. 1, the spring is biased by the support plate 10 of the dust collecting bag 9. Thus, the locking projections are required so that these projections enter the mating openings 32 of the support plate 10. However, when the storage chamber 8 is returned, the fingers are not spring-biased unless the dust bag 9 is inserted. The swivelable projection of the motor housing 7 is in the blocking position, in which position the storage chamber 8 is prevented from swiveling to the blocking position. Thus, the correct placement of the storage chamber 8 in the motor housing 7 ensures that the dust bag 9 is always loaded.

If handling is not correct, or if the dust-collecting bag 9 is not aligned correctly, the electret
The filter 17 becomes dirty. In order for this filter to be replaceable, the longitudinal side 23 with the locking projection 24 elastically formed
The support frame 15 carrying these electret filters 17 on the lattice structure can be pulled out from the holding frame 13 by swiveling inward in the direction of arrow P in the region of (see FIG. 5). However, this is only possible when the dust bag 9 is removed from the storage chamber 8. This is because otherwise the support plate 10 prevents the longitudinal side portion 23 from bending inward.

When the longitudinal side portion 23 is released and the locking connection between the locking projection 24 and the locking storage portion 22 is released, the support frame 15 is moved upward in the direction of arrow Z to hold the frame 1.
3 can be pulled out (see Fig. 6). In this way, the electret filter 17 drawn on the lattice structure 16 can be freely used. Can this filter be cleaned then,
Alternatively, they can be exchanged.

As described above, the dust bag or the support plate 10 of the dust bag 9 is loaded at the correct position. This is because otherwise, when the storage chamber 8 is returned to the use position in FIG. 1, the connection pipe on the motor housing side does not enter the opening 30 of the support plate 10. In response to this request, the support frame is attached to the lattice structure 16 and the electret.
It is also necessary to load the holding frame 13 in the correct position with the filter 17. This is achieved, for example, by the locking projections 24 and the locking housings 22 associated with these projections being shaped differently or arranged eccentrically. If you accidentally load the support frame 15,
The locking protrusion 24 does not reach the position where it is fitted into the locking storage portion 22, so that an optical signal having no correct position correspondence is not given to the user. In the use position shown in FIG. 1, the wear of the storage chamber 8 is adversely affected. This is because the support frame 15 projects above the holding frame 13 or the longitudinal side portions 23 of the support frame 15 further elastically protrude inward to prevent the dust bag 9 from being used. As already explained, the electric vacuum cleaner 1 has a safety device which prevents the storage chamber 8 from being shut off without using the dust bag 9.

The construction of the fittings disclosed in the above description, the drawings and the claims is important for implementing the invention individually as well as in any combination. All disclosed configurations are important to this invention. Thus, in the disclosure of this application, the disclosure content of the accompanying or attached priority application specification (copy of the publication) is also entirely related.

[0025]

As explained above, an electric vacuum cleaner according to the invention of the type mentioned at the outset having a storage chamber for a dust bag having a support plate is easy to handle and can be constructed in a more desirable manner for improving hygiene. .

[Brief description of drawings]

FIG. 1 is a side view of an electric vacuum cleaner having a storage chamber according to the present invention together with a storage chamber having a dust bag in an open position indicated by a broken line.

FIG. 2 is a perspective view of a storage chamber with an enclosed dust bag having a support plate.

FIG. 3 is a plan view of a storage chamber without a dust bag.

FIG. 4 is a line segment IV-of FIG.
FIG. 4 is a sectional view of IV.

FIG. 5 is a perspective view of the upper end portion of the storage chamber in which the dust collection bag is removed and the support frame loaded in the holding frame of the storage chamber is bent inward in the region of the elastic portion.

6 is a drawing corresponding to FIG. 5 in which the support frame and the lattice structure and the electret filter fixed to this frame are pulled out from the holding frame having the outer cloth cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner 8 Storage room 9 Dust bag 10 Support plate 13 Holding frame 14 Cloth cover 15 Support frame 16 Lattice structure 17 Electret filter 22 Locking storage 23 Long side 24 Locking protrusion

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor German Bumb, Federal Republic of Germany, 42285 Wuppertal, Friedrich-Wilhelm-Strasse, 1 (72) Inventor Siute Juan-Peter Duudon, Federal Republic of Germany, 44628 Herne, Holsthauser・ Strasse, 166

Claims (5)

[Claims] 1. A lattice structure comprising a storage chamber (8) for a dust bag (9) having a support plate (10) having a cloth cover (14) on the outside and a lattice structure (16) on the inside. Body (16)
In an electric vacuum cleaner (1), an electret filter (17) is arranged between a cloth cover (14) and a cloth cover (14) to form an upper support frame (15) for the support plate (10) of the dust bag (9). The structure (16) is removably connected to the support frame (15),
The filter (17) is fixedly mounted on the lattice structure (16) or the support frame (15), and the support frame (15) is locked and connected to the holding frame (13) for fixing the cloth cover (14). An electric vacuum cleaner (1), characterized in that it is necessary to elastically offset the part of the support frame (15) inwardly in order to release the locking connection. 2. A lattice structure comprising a storage chamber (8) for a dust bag (9) having a support plate (10) with a cloth cover (14) on the outside and a lattice structure (16) on the inside. Body (16)
An electret filter (17) between the cloth cover (14) and the cloth cover (14) to form an upper support frame (15) for the support plate (10) of the dust bag (9), the support frame (15) being substantially rectangular. A vacuum cleaner (1) according to claim 1 having a base plane of the locking projection (24) on the longitudinal side (23), mainly in the approximate center of the support frame (15).
An electric vacuum cleaner (1), characterized in that 3. Two locking projections (2) that are substantially opposite to each other
The vacuum cleaner according to claim 1 or 2, further comprising 4). 4. The electric vacuum cleaner according to claim 1, wherein the locking projection (24) is formed in a dovetail type. 5. Locking accommodating parts (22) are provided in the holding frame (13) to form a locking connection, and these locking accommodating parts (22) correspond to the locking projections (24). The vacuum cleaner according to any one of claims 1 to 4, wherein the vacuum cleaner has an undercut and is formed so as to open upward.