WO2007033976A1

WO2007033976A1 - Vacuum cleaner comprising a filter bag which is located therein

Info

Publication number: WO2007033976A1
Application number: PCT/EP2006/066565
Authority: WO
Inventors: Martin Fieseler
Original assignee: Vorwerk & Co. Interholding Gmbh
Priority date: 2005-09-23
Filing date: 2006-09-21
Publication date: 2007-03-29
Also published as: DE202005015042U1; EP1940277A1; RU2008115925A; CN101272721A

Abstract

The invention relates to a vacuum cleaner (3) which comprises a filter bag (5) which is located therein and which comprises a maintaining plate (7) which comprises a locking section (11), in order to maintain a cover (1) of the vacuum cleaner (3) on the maintaining plate (7). According to the invention, in order to equip a vacuum cleaner of the above mentioned type in a functionally secure manner, the locking section (11) comprises a key-like opening (13) and/or recess which is perpendicular to the direction of extension thereof, in order to insert and/or to receive a projection (14) in the locked state, which is formed on the cover (1) and/or on the cover lock. The locking section (11) is engaged by the cover lock (12) in the locked state.

Description

Vacuum cleaner with filter bag inside

The invention initially relates to a vacuum cleaner with therein filter bag, wherein the filter bag has a holding plate and the holding plate has a locking portion for holding a lid of the vacuum cleaner to the holding plate.

In the case of vacuum cleaners, and in particular household vacuum cleaners, there is a need to be able to put them into operation only when the filter bag has been inserted properly and, if necessary, in a type-appropriate manner. In this regard, solutions are known which detect the presence of the filter bag. In addition, for example, from DE 26 01 628 C3 known to provide the retaining plate of the filter bag with a laterally projecting, continue to extend in the plane of the retaining plate extending locking portion which is formed for Zusammen- effect with a lid lock. Accordingly, a lid lock is not possible with a non-inserted filter bag. The user is thereby displayed the absence of the filter bag or the insertion of a no filter section having a filter bag.

With regard to the prior art described above, a technical problem of the invention is seen in designing a vacuum cleaner of the type in question functionally reliable.

This problem is solved first and foremost by the subject matter of claim 1, wherein it is based on the fact that the locking portion transversely to its direction of extension has a key-like opening and / or recess for the enforcement or for receiving a on the lid and / or the lid lock molded projection in the locked state, wherein in the locked state of the locking portion is engaged by the lid lock. Follow this According to the embodiment of the invention, in addition to a query as to whether a filter bag with a corresponding locking section has been inserted, a detection is also achieved to determine whether a filter bag adapted to the dust augering system has been inserted. Modern vacuum cleaners often have a matched filter system to provide the required hygienic performance. The key-like opening or recess is interrogated by the projection formed on the cover or on the cover latch. If no projection or recess corresponding to the projection is provided, closing of the cover is prevented. Preferably, the lid lock does not reach the locked position in case of incorrect key-keyhole assignment. The opening provided in the locking section can, in the simplest form, be a hole which is cross-sectionally matched to the projection. It is also possible to design the opening edge open. A recess in the locking section may, for example, form an opening towards the side edges, wherein a depth of the recess measured in the thickness direction of the retaining plate corresponds, for example, to half the retaining plate thickness or half the locking section thickness. Furthermore, the recess or opening can have a query contour in a plan view, adapted to a corresponding outer contour of the cover-side projection. This contour may continue to have projections projecting back and forth in the floor plan.

The subjects of the further claims are explained below with reference to the subject matter of claim 1, but may also be significant in their independent formulation. Thus, in a vacuum cleaner of the type in question, in which further the filter bag is arranged in a filter chamber, provided that the filter chamber has a bracket, with which the filter bag is set to the filter chamber before closing the lid. In addition to fixing the retaining plate, this bracket also more preferably serves to stabilize the lid locking mechanism. menwirkenden locking portion of the holding plate. Thus, it proves to be advantageous in this respect if the bracket leaves a slot through which the locking portion is inserted for fixing the retaining plate. This slot is adapted in its cross section to the locking portion, may accordingly have a counter-profile to a key profile of the locking portion, to form a further test criterion. The opening and / or the recess is formed in the end region of the locking section projecting beyond the bracket; correspondingly in the cantilevered end portion. Also, the handle region for the lid lock is preferably formed in the end region of the locking section projecting beyond the bracket. As a result of this configuration, the region of the locking section projecting beyond the bracket serves both for coding detection and for locking the lid. In an alternative embodiment, the bracket can also be shaped as a swing-away latch. The holding plate is placed in this case in the usual way on the Filterkammerumrandung, after which the bolt is pivoted to encompass the locking portion and locked in its slot closing position. The bolt can in this case have an adapted to a locking section profile counter profile.

The invention further relates to a vacuum cleaner according to the preamble of claim 1, wherein it is here proposed to further increase the reliability that the locking portion controls a locking part of the vacuum cleaner tumbler in its closed position. According to this embodiment, a vacuum cleaner is provided, which is designed to be reliable. The commissioning, which requires the lid closure of the vacuum cleaner is possible only with inserted, a corresponding locking portion having filter bag. The lid lock does not interact directly with the locking portion of the holding plate, but rather indirectly via a vacuum cleaner housing side arranged Verrie- gelungsteil, which is the latter only by a properly inserted filter bag in the active, that is spent in the corresponding with the lid-side locking part position. The locking portion preferably supports the housing-side locking part from the rear. Without this support plate-side support, the locking part is preferably displaced out of the position corresponding to the cover lock, so further preferably pivoted out. This is possible, for example, by a spring action of the locking part out of the locking standby position.

The subjects of the further claims are explained below in relation to the subject matter of claim 6, but may also be significant in their independent formulation. Thus, it is preferably provided that the locking portion is arranged pivotably on the holding plate. Thus, for example, when the retaining plate is formed from a plastic material, the locking section can be articulated to the retaining plate via a film hinge or the like. When forming the holding plate from a cardboard / paper material, the pivotability of the locking portion can be achieved by a preformed bending zone. The pivoting is preferably carried out over an angle of up to 180 degrees, in particular by an angle of 90 degrees. Only the pivoted locking portion controls the housing-side locking part of the vacuum cleaner tumbler in the closed position.

Finally, the invention relates to a vacuum cleaner with therein filter bag, wherein the filter bag has a holding plate and the holding plate has an identification portion. In order to design a vacuum cleaner of the type in question functionally reliable, it is proposed that the identification section has a key profile and for the proper insertion of the filter bag in the vacuum cleaner by a corresponding counter-profile is to be stuck on the vacuum cleaner. Modern vacuum cleaners usually have a coordinated filter system, according to which the assignment of a not adapted to this system filter bag can lead to malfunction. This is where the invention starts by providing an identification of the filter bag, which is interrogated and recognized by the counterprofile provided in the vacuum cleaner. It is only the coincidence of the half-plate side key profile and the device-side counter profile that allows the conclusion that the inserted filter bag is a bag adapted to the filter system.

The subjects of the further claims are explained below in relation to the subject matter of claim 8, but may also be significant in their independent formulation. Thus, it is further proposed that the identification section is arranged pivotably on the holding plate, so for example. In the embodiment of the holding plate of a plastic material via a film hinge or the like. Alternatively, the pivotability can be achieved in the design of the holding plate of a paperboard / paper material by forming a pre-marked bending zone. The pivoting angle can be up to 180 degrees. A pivoting angle of approximately 90 degrees is preferred. Thus, it is further provided in this regard that an opening of the counter-profile has a direction perpendicular to an extension of the holding plate extending opening direction, so to the passage of a pivoted by 90 degrees from the holding plate identification section. In a preferred development of the subject matter, it is provided that the identification section which is inserted through the counter-profile is a locking part of the vacuum cleaner tumbler

Closing the vacuum cleaner in its locking position urges. Accordingly, the identification section serves not only to identify the proper filter bag, but rather also as a locking section, which controls a housing-side locking part only in the closed position to cooperate with the lid-side locking. This locking Part is moved out of the locking zone by means of the identification portion without the support, so further preferred spring-assisted swung out. In the absence of the plugged identification section locking of the vacuum cleaner or the lid can not be done. In the absence of the identification section, this not only necessarily means the absence of the identification section, but rather also the state in which a retaining plate has an identification section which is not stuck by the housing-side counter profile and thus does not push the locking part into the locking position on the other side of the counter profile can.

The invention with reference to the accompanying drawings, which illustrates only three embodiments, explained in more detail. It shows:

Figure 1 is a schematic sectional view of the enlargement of a locking area between a lid and a housing of a vacuum cleaner.

FIG. 2 shows a perspective exploded view of a filter bag cooperating with a lid lock; FIG.

Fig. 3 is a schematic sectional view corresponding to Fig. 1, but relating to a second embodiment;

4 shows the view against a vacuum cleaner with a lid lock in a third embodiment.

FIG. 5 shows the enlargement of the region V-V in FIG. 4; FIG. Fig. 6 is the side view of this;

FIG. 7 is a plan view of the holding plate of a filter bag in an embodiment as shown in FIG. 4; FIG.

Fig. 8 shows the section along the line VIII - VIII in Fig. 6 and

Fig. 9 shows the section along the line IX - IX in Fig. 5, with the omission of a holding plate-side identification section.

Shown and described is first with reference to FIG. 1, a closable by means of a lid 1 housing 2 of a vacuum cleaner not shown. 3

In the housing 2, a filter chamber 4 is provided for receiving a filter bag. 5

The latter is composed in the usual way of a filter bag 6 and a holding plate 7, on which the filter bag 6 is arranged on the underside, so for example, is glued.

The holding plate 7 is materially selected so that it has a sufficiently high rigidity to only on the peripheral edge 8 of the filter chamber 4 lying on the attached filter bag 6 can wear. For example, a paperboard / paper material is selected, this more preferably in a multilayer design for forming the retaining plate 7. Also, this may consist of a plastic material.

The holding plate 7 is penetrated by a circular recess 9. This is in the operating state of the vacuum cleaner 3 interspersed by a trunk-like Suction tube 10, through which the particle-laden suction air enters the filter bag 5 for filtration.

The holding plate 7 has a latching section 11 extending in the holding plate plane and protruding from a narrow side. This is arranged approximately in the center of the associated holding plate edge edge. The freely projecting length of this locking portion 11 is selected so that it protrudes into the cooperation area with a lid lock 12 arranged on the cover 1 of the vacuum cleaner 3.

The free end edge of the locking portion 11 is formed concave with respect to a floor plan to form a key-like, open-edged opening 13.

This concave contour or key contour is queried in the course of closing the lid 1 by a protrusion 14 forming a counter profile of the lid lock 12. This projection 14 has an adequate outline contour; corresponding to the opening 13 a convex bulge, which fits into the opening 13 of the locking portion 11.

The lid lock 12 is pivotable in a conventional manner, more preferably, although not shown, spring-loaded in the closed position, supported on the lid 1 and forms a handle.

Closing of the lid 1 can only be achieved with a coordinated lid locking projection 14 and locking portion recess 13, in which configuration a locking shoulder 15, which is formed in a planar manner below the projection 14, can engage under the locking portion 11 for fixing the lid 1 , If the retaining plate 7 has no locking section 11 or if the opening 9 of the locking section 11 is not adapted to the contour of the cover locking projection 14, the rearward engagement of the locking projection 15 required for locking can not be achieved.

Accordingly, no closing of the lid 1 is possible if no filter bag 5 is inserted. An incorrect operation is thus counteracted.

In order to support the filter bag 5 on the filter chamber 4 and also to stabilize the ablenk- ing locking portion 11, in particular with regard to the acting in the locking state of the lid 1 on these forces, a bracket 16 is provided. This extends, the locking portion 11 across the filter chamber edge 8, wherein further between the bracket 16 and the filter chamber edge 8, a slot 17 is left for the insertion of the locking portion 11.

An alternative embodiment is shown in the illustration in FIG. 3. In this case, the holding plate-side locking section 11 does not interact directly with the lid lock 12, but rather with the interposition of a separate locking part 18 hinged on the housing side.

This locking part 18 has a latching hook 19 which points towards the lid lock 12 at the end and which, in the illustrated locking situation, overhangs the corresponding hook of the lid lock 12. Thereafter, the lid closure position is secured.

This locking position can only be reached by inserting a permissible filter bag 5 with a locking portion 11, which enters the back against the locking member 18 and this moves only in the locking position. Without this rearward support via the locking portion 11 of the holding plate 7, the locking part 18 is pivoted back into an unlocked position according to the load of an intended leg spring 20. This position is stop-limited by a stop section 21 arranged on the housing side.

In FIGS. 4 to 9, in a further embodiment, a filter bag 5 is provided whose locking section 11 at the same time forms an identification section 22 and is arranged pivotably on the holding plate 7. The pivotable speed is achieved in forming the holding plate 7 made of a plastic material by a provided film hinge. In a holding plate made of a paperboard / paper material, a bending zone 23 is formed, with the thickness of the holding plate 7 being reduced. The bending line runs transversely to the free extension direction of the locking section 11 in the foot region of the same, d. H. in the root area of the locking portion 11 to the holding plate. 7

To the bending zone 23 of the locking projection 15 is to be pivoted such that thereafter the locking portion 11 to the filter bag 6 facing away from the upper side of the holding plate 7 forms an angle of 90 degrees.

As can be seen from the illustration in FIG. 4, in this exemplary embodiment, the filter chamber 4 accommodating the filter bag 5 is formed in the cover 1, the latter being pivoted on the housing 2. On the hinge axis 24 opposite side of the lid 1, the lid lock 12 is provided with an inwardly facing locking projection 25. This is designed to cooperate with a housing side pivotally mounted locking member 18, which locking member 18 a latching projection 25 of the lid lock 12 engages behind Latch hook 19 has. As in the previously described embodiment, the housing-side locking part 18 is also initially loaded by means of a leg spring 20 into a basic position, in which no locking can take place. Accordingly, the latching hook 19, which cooperates with the latching projection 25 of the cover latch 12, is pivoted out of the latching zone. This spring-loaded basic position is stop-limited.

The locking member 18 is therefore for fixing the cover 1 to the housing 2 first to move to the position corresponding to the lid lock 12 position. This is done via the pivoted-off locking portion 11 of the holding plate 7, which occurs backwards against the locking part 18, this pushes into the locking position and holds there. This ensures that the lid 1 can only be closed in conjunction with an inserted filter bag 5, which has a pivoted-off locking section 11 in an adapted size and position.

In order to further ensure that a suitable for the filter system of the vacuum cleaner 3 filter bag 5 is inserted, an identifier is provided. For this purpose, the identification section 22, which forms the locking section 11 at the same time, is provided, which has a key profile (cf., for this purpose, FIG. 8).

Matching to this key profile, in the closed position parallel to the holding plate 7, approximately in the plane of separation between the lid 1 and the housing 2, the housing wall 26 is formed with a counter-like counter-profile 27. This corresponds in cross section to the key profile of the identification section 22.

Accordingly, only one matched to the housing-side counter-profile 27 identification portion 22 can be plugged through the housing 26. Only an approved identification section 22 can hereafter function as the locking device. take section 11 and urge the housing-side locking member 18 in the locked position.

The key profile of the identification section 22 can also be designed in the form of alphanumeric characters or also in the form of logos by means of customary key-profile-like geometries. The housing-side counter-profile 27 is adapted accordingly.

All disclosed features are essential to the invention. The disclosure content of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application.

Claims

1. Vacuum cleaner (3) with therein filter bag (5), wherein the filter bag (5) has a holding plate (7) and the holding plate (7) has a locking portion (11) for holding a lid (1) of the

Vacuum cleaner (3) on the holding plate (7), characterized in that the locking portion (11) transversely to its direction of extension has a key-like aperture (13) and / or recess for the enforcement or for receiving a on the lid (1) and / o- of the lid lock (12) integrally formed projection (14) in the locked state, wherein in the locked state of the locking portion (11) of the lid lock (12) is engaged.

2. Vacuum cleaner according to claim 1 or in particular according thereto, wherein further the filter bag (5) in a filter chamber (4) is arranged, characterized in that the filter chamber (4) has a bracket (16), with which the filter bag (5) the filter chamber (4) before closing the lid (1) is set.

3. Vacuum cleaner according to one or more of the preceding claims or in particular according thereto, characterized in that the bracket (16) leaves a slot (17) through which the locking portion (11) for fixing the retaining plate (7) is inserted.

4. Vacuum cleaner according to one or more of the preceding claims or in particular according thereto, characterized in that the opening (13) and / or recess in the over the bracket (16) projecting end portion of the locking portion (11) is formed.

5. Vacuum cleaner according to one or more of the preceding claims or in particular according thereto, characterized in that the lower grip region for the cover lock (12) in the over the bracket (16) projecting end portion of the locking portion (11) is formed.

6. Vacuum cleaner according to the features of the preamble of claim 1, characterized in that the locking portion (11) controls a locking part (18) of the vacuum cleaner tumbler in its closed position.

7. Vacuum cleaner according to claim 6 or in particular according thereto, characterized in that the locking portion (11) is pivotally mounted on the holding plate (7).

8. Vacuum cleaner with therein filter bag (5), wherein the filter bag (5) has a holding plate (7) and the holding plate (7) has an identification portion (22), characterized in that the identification section (22) a Has key profile and for proper insertion of the filter bag (5) in the vacuum cleaner (3) by a corresponding counter-profile (27) on the vacuum cleaner (3) is stuck.

9. Vacuum cleaner according to claim 8 or in particular according thereto, characterized in that the identification portion (22) is arranged pivotably on the holding plate (7).

10. Vacuum cleaner according to one or more of claims 8 to 9 or in particular according thereto, characterized in that an opening of the counter-profile (27) has a perpendicular to an extension of the holding plate (7) extending opening direction.

11. Vacuum cleaner according to one or more of claims 8 to 10 or in particular according thereto, characterized in that the through the counter profile (27) inserted through the identification section (22) a locking part (18) of the vacuum cleaner tumbler when closing the vacuum cleaner (3) in his Locking position is pressing.

12. Vacuum cleaner according to one or more of claims 8 to 11 or in particular according thereto, characterized in that in the absence of the inserted identification portion (22) locking of the vacuum cleaner (3) does not take place.