DE102009028571A1 - Vacuum cleaner with filter carrier - Google Patents

Abstract

Vacuum cleaner (10) with a dust chamber (11) and a filter carrier (20) for receiving a planar filter flange (30), the filter carrier (20) being rotatable on a first inner surface (12) via a swivel joint (21) with an axis of rotation (22) ) of the dust chamber (11) is mounted, has at least one support point (23) for supporting the filter carrier (20) on at least one support point (14) of the dust chamber (11) and has a filter flange level (24) through the installed planar filter flange ( 30) is defined, the projection (25) of the support point (23) on the filter flange plane (24) being at a support distance (27) from the projection (26) of the axis of rotation (22) on the filter flange plane (24), the support distance ( 27) is perpendicular to the projection (26) of the axis of rotation (22). The present invention enables the provision of an improved vacuum cleaner with a filter carrier with simple constructive and inexpensive means. In particular, the invention can provide a vacuum cleaner with a captive, rotatably mounted filter carrier that can be stably supported. Furthermore, damage caused by high forces can be avoided.

Description

Field of the invention

The present invention relates to a vacuum cleaner with a dust chamber and a filter support for receiving a planar filter flange, wherein the filter support is rotatably mounted via a rotary joint with a rotation axis on a first inner surface of the dust chamber, at least one support point for supporting the filter support on at least one support point of the dust chamber and having a filter flange plane defined by the assembled planar filter flange.

Background of the invention

For example, from International Publication WO 2003020098 A1 a vacuum cleaner with a dust collection chamber, in which a dust bag is introduced known. The dust bag has a stiffening plate, which is inserted into a receptacle. The receptacle has at its lower end a pivot shaft and is resiliently mounted by a mounted in its lower region leaf spring relative to the lower part of the vacuum cleaner.

Next is from the document US 4,591,369 A a vacuum cleaner known. The vacuum cleaner has a filter bag carrier, which is arranged on a lower part of the vacuum cleaner, and on which a filter bag can be arranged. The filter bag carrier has a few pivot pins which are rotatably arranged in corresponding pivot bearings.

Next is from the logon US 4,738,697 A a bag carrier for a dust bag for a vacuum cleaner known. The bag carrier includes a pair of pivots disposed in pivot bearings of the bottom of the vacuum cleaner.

The problem underlying the invention

The invention has for its object to provide a comparison with the prior art improved vacuum cleaner with filter carrier. In particular, a vacuum cleaner with a stable support of the filter support to be provided.

Inventive solution

The reference numbers in all claims have no limiting effect, but are only intended to improve their readability.

The solution of the problem is achieved by a vacuum cleaner with the features of claim 1.

Vacuum cleaners are electrical energy powered devices for receiving dust, including both mains powered and battery or cordless tools. A vacuum cleaner can z. Example, a motor-blower unit for generating a suction air flow, a nozzle for collecting dust, a suction air guide and a dust bag. During normal operation of the vacuum cleaner loaded with dirt suction air can pass through the Saugluftführung, which may consist of a flexible suction hose, among other things, to the dust bag and then flow through the filter cloth of the dust bag. Here, the suction air can be freed from the dirt that can be kept away from the filter cloth and collected in the dust bag. Usually, the dust bag in the dust chamber of the vacuum cleaner, the z. B. can be closed by a lid arranged. The dust chamber of the vacuum cleaner is characterized by its inner surfaces, for. B. limited by the bottom, side and / or top surface. Advantageously, the suction air is connected via a connecting piece with the dust bag. The nozzle can z. B. may be arranged on the lid of the dust chamber. Usually, the dust bag has a planar, ie flat filter flange with an inlet into which the nozzle, z. B. when closing the dust chamber lid, can dip. In order to improve the seal between the nozzle and the inlet opening, the filter flange often has a seal at the inlet opening. In the mounted position, the filter flange is inserted into the filter carrier so that the nozzle can dip into the inlet opening.

The filter flange plane of the filter support means the plane that the planar filter flange defines in the mounted position. The planar filter flange thus lies, when it is mounted on the filter carrier, in the filter flange plane of the filter carrier. The projection of the support point or the axis of rotation onto the filter flange plane is to be understood as the geometric figure that arises due to a parallel projection directed perpendicular to the filter flange plane.

It is an achievable advantage of the invention that can be stably supported by the Abstützabstand the filter support. Advantageously, a stable support of the filter support can be achieved on at least one support point, wherein at least one support point can rest on a support point. By the support point according to the invention and / or the support point, a stop for the filter support is reached. In this way, a reliable limitation of the pivoting range of the filter carrier can be achieved. Further, penetration of the filter carrier into the dust chamber, and thus a reduction of the dust volume which can be absorbed by a dust bag, can be avoided.

The inventors have recognized that taking advantage of the lever law, a high force acting on the filter support, can be absorbed to a large extent by the support point. Usually, the starting point of such a force, the z. B. may occur due to accidental support of the user to the filter support, on the side facing away from the hinge side of the filter support. Advantageously, the distance between the support point and the attachment point is less than the distance between the attachment point and the pivot, so that the force is transferable to a large extent on the support point on the support point. The support point is advantageously arranged at the location at which forces normally act on the filter support.

By the invention, a mechanically load-bearing filter carrier can be further achieved. Advantageously, can be minimized by the invention, the deformation of the filter support under a load, which can lead to a long service life of the filter support. Furthermore, it can be achieved that, when a force acts on the filter carrier, the rotary joint is only minimally loaded, since a part of the force acts on the contact point. Advantageously, the support point can absorb a large part of the force or even the entire force. Advantageously, this can damage by incorrect operation, eg. B. by accidentally supporting the user on the filter carrier, can be avoided.

It is another achievable advantage of the filter support according to the invention that a safe immersion of the nozzle into the filter bag opening on the filter flange can be made possible. Advantageously, a deformation of the filter support during the immersion of the nozzle can be minimized, so that a retreat of the filter carrier can be avoided before the submerged nozzle. Advantageously, the filter support is located on the support point, so that the filter support can assume a stable position when immersing the nozzle. The invention thus provides a reliable connection between nozzle and dust bag can be achieved.

Preferred embodiment of the invention

Advantageous embodiments and developments, which can be used individually or in combination with each other, are the subject of the dependent claims.

In a preferred embodiment of the invention, the support distance is at least one third of the length of the filter support. The length of the filter carrier is to be understood as the maximum extent of the filter carrier whose direction runs in the filter flange plane and is perpendicular to the projection of the axis of rotation. This makes it possible to increase the stability of the support of the filter carrier. Advantageously, a force acting on the filter support force can be absorbed to a large extent by the support point, whereby the stability of the filter support can be increased.

In a further preferred embodiment, the support point is arranged on a second inner surface of the dust chamber. Particularly preferably, the first inner surface is fixed, particularly preferably immovably connected to the second inner surface. Advantageously, as a result, a deformation of the first inner surface can be minimized when the filter carrier is loaded, whereby an increase in the reliability of the dust chamber seal can be achieved. This prevents deformation of the first inner surface when the filter carrier is loaded. By arranged on the second inner surface of the dust chamber support location is an improved absorption of forces acting on the filter carrier, accessible.

The invention further development is preferably provided that the support point is formed as a rib. Advantageously, an easily manufacturable and / or stable support location is thereby achievable. Further, a support point formed as a rib can be easily arranged on the second inner surface of the dust space. Advantageously, a deterioration of the dust bag volume can be minimized by a rib.

According to the invention, it is preferably provided that two ribs are arranged symmetrically in the dust space, each having a support point for supporting the filter support. Advantageously, the filter carrier has two symmetrically arranged support points which come to rest on the support points when supporting the filter support. As a result, it can be achieved that a force acting on the filter carrier can be distributed symmetrically distributed on the support points. Thus, a minimal deformation of the filter support is achieved by force. Further, the supporting effect of the support points can be improved.

The invention further development is preferably provided that the mounted filter flange has an inlet opening, and the distance of the center of the inlet opening to the projection of the axis of rotation on the filter flange level of the Abstützabstand deviates by more than 50%. Particularly preferably, the distance of the center of the inlet opening deviates from the support distance by at most 20%, particularly preferably by at most 10%. Advantageously, this can be effectively transmitted to the support surface, the force exerted on the filter support when dipping the nozzle, with short force paths for Derivation of this force can be achieved. Further, a small deformation of the filter support is reached when dipping the nozzle into the opening of the filter flange, so that the filter support can not escape the nozzle. Particularly preferably, the filter flange has a seal at the inlet opening.

In one embodiment of the invention, a filter unit is arranged on a second inner surface, which has the support point. During normal operation of the vacuum cleaner, the filter unit is at least partially flowed through by the suction air. The filter unit can remove and / or add particles to the suction air, and can thus represent an additional filter in addition to the dust bag. The filter unit can, for. B. be implemented as a motor protection filter, or add the suction air odors. Usually, the filter unit is removable, wherein this is mounted in an end position in which the filter unit is in its intended operating position. Due to the arranged on the filter unit support location is reached that upon application of force to the filter carrier, the filter unit can be brought into the end position. As a result, the intended operating position of the filter unit can be ensured. Embodiments of the invention are also possible in which a support point is arranged on the filter unit, and a further support point is arranged on a second inner surface.

In a further preferred embodiment, the filter carrier has at least one wing-like element on which the support point is arranged. Particularly preferably, the wing-like element is from the flange guide, whereby a stable support of the filter carrier can be made possible. Via the flange guide, the filter flange can be guided into the mounted position in which the filter flange is arranged on the filter carrier. The wing-like element can take various forms, such. B. have a triangle, a diamond or a parallelogram. The wing-like element may be made solid or have a lattice-like structure. The lattice-like structure may, for. B. have a frame and / or a grid within a frame. Advantageously, a lattice-like structure can have a higher stability than a massively designed wing-like element. By a wing-like element a simple and / or stable construction of the filter carrier is achievable. Further, the wing member may have a surface that can be used for labels. Embodiments of the invention are also possible in which the filter carrier has a pin-like element on which the support point is arranged.

In one embodiment of the invention, the wing-like element has a curvature. Particularly preferably, the curvature of the wing-like element from the dust chamber to the outside. Due to the curvature, the use of the dust chamber volume, and thus the used dust bag volume can be increased. Furthermore, it is possible to avoid pressing off the inserted dust bag, which makes it possible to achieve that the dust bag can unfold freely. Due to the curvature of the wing-like element whose stability can be increased, whereby a deformation of the filter support when supporting on at least one support point can be reduced.

The invention further development is preferably provided that the filter carrier has a guide projection on the support point for stabilizing the position of the filter carrier. Advantageously, can be achieved by the guide projection, that in a force acting support point and support can come to rest safely on each other. Further, this position of the filter support can be securely maintained by the guide projection. By means of the guide projection, an insertion bevel can be realized by which it can be ensured that, when the filter carrier is pressed down, the movement of the filter carrier is reliably limited by the support position.

According to the invention, it is preferably provided that the rotary joint is arranged in the upper half of the first inner surface. Particularly preferably, the rotary joint is arranged in the upper third, particularly preferably in the upper quarter of the first inner surface. Here, the upper half, the upper third and the upper quarter to understand the remote from the dust compartment floor half, the farthest third and the farthest quarter of the first inner surface. Advantageously, the upper half, the upper third and / or the upper quarter adjacent to an edge of the dust chamber. Advantageously, a high removal position of the filter flange can be reached by the user, whereby the user can easily remove the filter flange from the filter support and / or insert it into the filter flange. Advantageously, the dust bag volume can be further increased by the inventively arranged rotary joint. Advantageously, the filter flange can assume a flatter position, whereby a more effective transmission of a force acting on the filter carrier force can be achieved on the support point.

According to the invention, it is preferably provided that acts on the filter support, a spring through which the filter support is pivotable in a maintenance position. The spring can z. B. made of flexible plastic or metal. Particularly preferably, the spring is fixed to the filter carrier. There are also embodiments of the invention conceivable in which the spring on the vacuum cleaner, z. B. is fixed to the first inner surface. Advantageously, can the filter bag, which is arranged on the filter flange on the filter carrier, easily removed or used in maintenance position. In maintenance position, there is no contact between the supporting point of the filter carrier and the location of the dust chamber. Particularly preferably, the filter carrier can be moved within a pivoting range, which is determined by a first and a second boundary. Particularly preferably, the maintenance position corresponds to the first limit of the swivel range. Particularly preferably, the position in which the filter support is supported via the support point at the support point corresponds to the second limit of the pivoting range. By the spring of the filter carrier can advantageously be pivoted out of the dust chamber in the maintenance position. In the absence of filter flange can advantageously be activated by the spring a filter lock. In such a filter lock the lid z. B. no longer close the dust chamber. Next can be achieved by the spring relief of the filter support upon application of force.

The present invention enables the provision of an improved vacuum cleaner with filter carrier with simple constructive and inexpensive means. In particular, can be provided by the invention, a vacuum cleaner with a captive, since rotatably mounted filter carrier, which can be stably supported. Furthermore, damage caused by a high force can be avoided.

Brief description of the drawings

Further advantageous embodiments will be described in more detail below with reference to two embodiments illustrated in the drawings, to which the invention is not limited.

They show schematically:

1 a filter carrier in a dust chamber of a vacuum cleaner;

2 a filter support with a mounted planar filter flange;

3 a projection of a support point and the axis of rotation of the filter support on the Filterflanschebene;
and finally

4 a filter carrier in a dust chamber of a vacuum cleaner with a filter unit.

Detailed description based on two embodiments

In the following description of two preferred embodiments of the present invention, like reference characters designate like or similar components.

The first embodiment will be described below with reference to FIG 1 to 3 explained. In 1 shown is a filter carrier 20 in a dust room 11 a vacuum cleaner 10 , 2 shows the filter carrier 20 with a mounted planar filter flange 30 a dust bag, wherein the dust bag is not shown for purposes of illustration. 3 shows the projection 25 a support point 23 and the projection 26 the axis of rotation 22 of the filter carrier 20 on a filter flange plane 24 , The dust room 11 of the vacuum cleaner 10 can be closed by a lid, not shown in the figures. The dust bag for receiving the dust from the suction air is in normal operation of the vacuum cleaner 10 in the dust room 11 arranged, and has a planar filter flange 30 on. The vacuum cleaner further has a filter carrier 20 for receiving the planar filter flange 30 on, with the filter carrier 20 over a swivel joint 21 with a rotation axis 22 rotatably on a first inner surface 12 the dust room 11 is stored. For the introduction of the filter flange 30 in the mounted position, the filter carrier 20 a flange guide on. Next, the filter carrier 20 two interpolation points 23 for supporting the filter carrier on two support points 14 of the dust room. As a result, a stable support of the filter carrier 20 reachable, whereby z. B. Damage due to accidental support of the user to the filter carrier 20 or similar incorrect operations can be avoided. In addition, a safe immersion of a nozzle, not shown in the figures in the inlet opening 31 of the filter flange 30 when closing the lid allows, as a yielding of the filter carrier 20 is prevented by the support. At the entrance 31 of the filter flange 30 is a seal 32 arranged through which the seal between the nozzle and the inlet opening 31 is improved. For reasons of illustration, only one support point is shown in the figures 23 and support point 14 shown.

The filter carrier 20 further has a filter flange plane 24 on, through the assembled planar filter flange 30 is defined. Out 3 it can be seen that the projection 25 the support point 23 on the filter flange plane 24 a support distance 27 to the projection 26 the axis of rotation 22 on the filter flange plane 24 having, wherein the support distance 27 perpendicular to the projection 26 the axis of rotation 22 stands. Through this support distance 27 , which is at least one third of the length of the filter carrier 20 is, is a stable support of the filter carrier 20 guaranteed. The length of the filter carrier 20 Here is the maximum extension of the filter carrier 20 , whose direction in the filter flange plane 24 runs and perpendicular to the projection 26 the axis of rotation 22 stands.

The dust room 11 has two support points 14 on, each on a second inner surface 13 the dust space are arranged, and as ribs 15 are formed. The two ribs 15 of which, for illustrative purposes, only one is shown and each one a support point 14 for supporting the filter carrier 20 are in the dust room 11 arranged symmetrically. Due to the symmetrically arranged support point 14 , with two interpolation points 23 of the filter carrier 20 correspond, a force acting on the filter carrier is derived distributed symmetrically, whereby the supporting effect is improved. Further deformed the filter carrier 20 only minimal with an acting force.

The distance between the center of the inlet opening 31 of the filter flange 30 to the projection 26 the axis of rotation 22 on the filter flange plane 24 gives way with mounted filter flange 30 from the support distance 27 5% off. As a result, the force when immersing the nozzle in the inlet opening 31 on the filter flange 30 and on the filter carrier 20 is exercised effectively on the pads 14 derived.

The filter carrier 20 has two wing-like elements 28 on where the interpolation points 23 are arranged, and project from the flange guide. The wing-like elements 28 have a curvature, through which the used dust bag volume is increased. The curvature of each wing-like element 28 points in this case from the dust chamber to the outside.

Next, the filter carrier 20 a leadership advantage 29 at the support point 23 for stabilizing the position of the filter carrier 20 on, whereby at a force the support points 23 and support points 14 safely come to rest on each other and in the position where the interpolation points 23 and the pads 14 lie on each other, this is safely maintained. In addition, when pressing down the filter carrier 20 the movement of the filter carrier 20 reliable from the support points 14 limited because of the guide projection 29 an insertion path is realized.

The swivel joint 21 , about which the filter carrier 20 on the first inner surface 12 the dust room 11 is stored in the upper quarter, and thus in the upper half of the first inner surface 12 arranged. The upper quarter of the first inner surface 12 This is the case of the dust chamber floor 18 opposite last quarter of the first inner surface. The first inner surface is thus divided in height into four equal areas, with one surface to the dust chamber floor 18 borders, and another area, namely the uppermost quarter on the edge 17 the dust room is adjacent. The filter carrier 20 thereby assumes in its operating position, which in 1 is shown, a flat position, whereby a more effective transfer of a on the filter carrier 20 acting force is reached on the support points. In addition, the dust bag volume is due to the arrangement of the swivel joint 21 in the upper quarter of the first inner surface 12 further increased.

On the filter carrier 20 engages in the Fig. For reasons of illustration, not shown spring through which the filter carrier 20 is pivoted to a maintenance position. The spring is firmly attached to the filter carrier 20 fixed. In the maintenance position, in which no contact between the support points 23 and the pads 14 the filter flange can exist 30 easily removed or used. The filter carrier 20 Can by the spring from the dust room 11 be panned out.

The present invention enables the provision of an improved vacuum cleaner with filter carrier with simple constructive and inexpensive means. In particular, can be provided by the invention, a vacuum cleaner with a captive, since rotatably mounted filter carrier, which can be stably supported. Furthermore, damage caused by a high force can be avoided.

The features disclosed in the foregoing description, the claims and the drawings may be of importance both individually and in any combination for the realization of the invention in its various forms.

LIST OF REFERENCE NUMBERS

10

vacuum cleaner

11

dust chamber

12

first inner surface

13

second inner surface

14

support point

15

rib

16

filter unit

17

Edge of the dust chamber

18

Dust compartment floor

20

filter support

21

swivel

22

axis of rotation

23

support point

24

Filterflanschebene

25

Projection of the support point

26

Projection of the rotation axis

27

supporting distance

28

wing-like element

29

guide projection

30

filter flange

31

inlet opening

32

poetry

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2003020098 A1 [0002]
• US 4591369A [0003]
• US 4738697 A [0004]

Claims (12)

Vacuum cleaner ( 10 ) with a dust chamber ( 11 ) and a filter carrier ( 20 ) for receiving a planar filter flange ( 30 ), wherein the filter carrier ( 20 ) via a rotary joint ( 21 ) with a rotation axis ( 22 ) rotatably on a first inner surface ( 12 ) of the dust space ( 11 ), at least one support point ( 23 ) for supporting the filter carrier ( 20 ) on at least one support point ( 14 ) of the dust space ( 11 ) and a Filterflanschebene ( 24 ) through the mounted planar filter flange ( 30 ), characterized in that the projection ( 25 ) of the support point ( 23 ) to the filter flange level ( 24 ) a support distance ( 27 ) to the projection ( 26 ) of the axis of rotation ( 22 ) to the filter flange level ( 24 ), wherein the support distance ( 27 ) perpendicular to the projection ( 26 ) of the axis of rotation ( 22 ) stands. Vacuum cleaner ( 10 ) according to claim 1, characterized in that the support distance ( 27 ) at least one third of the length of the filter carrier ( 20 ) is. Vacuum cleaner ( 10 ) according to claim 1 or 2, characterized in that the support point ( 14 ) on a second inner surface ( 13 ) of the dust space ( 11 ) is arranged. Vacuum cleaner ( 10 ) according to one of the preceding claims, characterized in that the support point ( 14 ) as a rib ( 15 ) is trained. Vacuum cleaner ( 10 ) according to one of the preceding claims, characterized in that in the dust space ( 11 ) two ribs ( 15 ) are arranged symmetrically, each having a support point ( 14 ) for supporting the filter carrier ( 20 ) exhibit. Vacuum cleaner ( 10 ) according to one of the preceding claims, characterized in that the filter flange ( 30 ) an entrance opening ( 31 ), and the distance of the center of the inlet opening ( 31 ) to the projection ( 26 ) of the axis of rotation ( 22 ) to the filter flange level ( 24 ) with mounted filter flange ( 30 ) from the support distance ( 27 ) deviates by more than 50%. Vacuum cleaner ( 10 ) according to one of the preceding claims, characterized in that on a second inner surface ( 13 ) a filter unit ( 16 ) is arranged, which the Auflagestelle ( 14 ) having. Vacuum cleaner ( 10 ) according to one of the preceding claims, characterized in that the filter carrier ( 20 ) at least one wing-like element ( 28 ) at which the interpolation point ( 23 ) is arranged. Vacuum cleaner ( 10 ) according to claim 8, characterized in that the wing-like element ( 28 ) has a curvature. Vacuum cleaner ( 10 ) according to one of the preceding claims, characterized in that the filter carrier ( 20 ) a guiding projection ( 29 ) at the support point ( 23 ) for stabilizing the position of the filter carrier ( 20 ) having. Vacuum cleaner ( 10 ) according to one of the preceding claims, characterized in that the swivel joint ( 21 ) in the upper half of the first inner surface ( 12 ) is arranged. Vacuum cleaner ( 10 ) according to one of the preceding claims, characterized in that on the filter carrier ( 20 ) engages a spring through which the filter carrier ( 20 ) is pivotable in a maintenance position.

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