Holding system for holding a vacuum cleaner filter bag in a vacuum cleaner

Abstract

The invention relates to holding system (20) for holding a vacuum cleaner filter bag (1) in a vacuum cleaner (7). The holding system comprises a holding plate (2) of the vacuum cleaner filter bag (1) and a holding plate receiving area (5) with a support surface for the holding plate. The support surface comprises a three-dimensional structure (8), comprising at least one elevation and / or at least one depression and / or at least one cutout, and the holding plate comprises, on the face facing the support surface, a three-dimensional mating structure (9) which is complementary to the structure and is designed in such a way that it can be brought into interlocking engagement with the structure of the support surface.

Description

[0001] Mounting system for holding a vacuum cleaner filter bag in a vacuum cleaner

[0002] The present invention relates to a holding system for holding a vacuum cleaner filter bag in a vacuum cleaner.

[0003] Conventional vacuum cleaner filter bags typically comprise an air-filtering filter medium and a retaining plate connected to the filter medium for connecting the filter bag to the vacuum cleaner. The retaining plate has an opening through which the air stream, laden with dust and dirt, is drawn into the filter bag during vacuuming. To ensure proper operation of the vacuum cleaner, the vacuum cleaner and vacuum cleaner filter bag should be compatible. For example, the filter bag must be the correct size to achieve optimal use of space within the vacuum cleaner's dust collection chamber and optimal dust and dirt absorption capacity. To this end, manufacturers are increasingly ensuring that vacuum cleaners can only be operated with filter bags specifically designed for that vacuum cleaner.

[0004] EP 2 744 383 A1 discloses a holding plate for a vacuum cleaner filter bag, which has a key formed on one side and a concave recess on the outer lateral edge section on the opposite side. In an assembled position, a spring on the device presses laterally into the concave recess of the holding plate, so that the key is pressed against a correspondingly designed lock in the housing of the vacuum cleaner. A positive engagement takes place between the key and lock, so that the holding plate is held in position. By coding the holding plate with a key that must fit into the lock on the device, it is avoided that a filter bag that is not suitable for the vacuum cleaner is used.

[0005] Changing a vacuum cleaner bag with these characteristics requires many, sometimes complicated, steps. For example, when inserting a new, empty filter bag, the retaining plate must first be carefully pushed into a narrow slot in a retaining plate holder. Furthermore, the retaining plate can easily become jammed during insertion and / or removal due to the spring force acting only on one side and sideways.

[0006] In view of this, it is an object of the present invention to provide a mounting system for holding a vacuum cleaner filter bag in a vacuum cleaner, which improves handling during installation and removal of the vacuum cleaner filter bag in and from the vacuum cleaner. This object is achieved by the mounting system according to claim 1. Further aspects can be found in the respective subclaims. According to the invention, a mounting system for holding a vacuum cleaner filter bag in a vacuum cleaner is provided.The holding system comprises a holding plate of the vacuum cleaner filter bag and a holding plate receptacle with a support surface for the holding plate, wherein the support surface has a three-dimensional structure comprising at least one elevation and / or at least one depression and / or at least one recess, wherein a three-dimensional counterstructure complementary to the structure is formed in the holding plate on a side facing the support surface, and wherein the counterstructure is designed such that it can be brought into positive engagement with the structure of the support surface.

[0007] The features of the mounting system simplify handling for the user when installing and removing the vacuum cleaner filter bag. According to the present invention, it is sufficient to place the structured mounting plate on the support surface and engage it with the structure of the support surface to correctly position the mounting plate in a predetermined position. Tilting of the mounting plate cannot occur. In particular, no lateral force acts on the mounting plate. When removing the vacuum cleaner filter bag, the user can easily and intuitively remove or lift the mounting plate from the support surface.

[0008] The positive engagement between the support surface and the retaining plate holds the retaining plate on the support surface against a force acting essentially parallel to the support surface. The retaining plate thus remains in a predetermined position against the force acting parallel to the support surface. In other words, the positive engagement acts perpendicular to a support direction, i.e., perpendicular to the direction in which the retaining plate is placed on the support surface.

[0009] The retaining plate has a top and a bottom. When the retaining plate is placed on the support surface, the bottom faces the support surface and the top faces away from it. Therefore, the counterstructure is formed in the underside of the retaining plate. The top of the retaining plate can be a flat surface, but can also have a texture.

[0010] The support surface has a depression and / or a recess. The difference between these two elements is that a depression has a bottom, while a recess, also known as a through-hole, has no bottom. A raised portion is complementary to both a depression and a recess because both allow for a positive fit.

[0011] The retaining plate can also be held against a force acting perpendicular to the support surface when closing the vacuum cleaner, for example, by pressing a suction nozzle onto an opening in the retaining plate. This also allows for a positive fit in the support direction. At the same time, this also directs dust-laden air through the opening into the filter medium. This demonstrates the importance of the specified position. It determines the correct alignment of the retaining plate on the support surface, so that the suction nozzle is pressed precisely onto the opening in the retaining plate and the dust-laden air is directed through the opening into the filter medium.

[0012] Further options for holding the retaining plate parallel to the support surface are outlined below. First, more specific designs for the structure and counterstructure are presented.

[0013] The structure may comprise two pin-like elevations and the counter-structure may comprise two depressions or recesses engageable with the pin-like elevations.

[0014] It can be advantageous if the structure and the counterstructure each comprise at least two elements, where one element represents a protrusion or a depression / recess. A mount on only one element cannot necessarily define a predefined position on the support surface, because the retaining plate can still rotate around that one element. However, by using two or more complementary elements, the predefined position is clearly defined.

[0015] A pin-like elevation may in particular essentially have a conical shape, a truncated cone shape or a cylindrical shape, but is not limited to these shapes.

[0016] The raised portions in the structure clearly indicate to the user how the retaining plate, with its recesses or indentations, must be correctly positioned on the support surface in the specified position, allowing for easy handling. Furthermore, the raised portions in the structure, when engaged with the recesses or indentations in the counter-structure, provide a positive fit that holds the retaining plate in the specified position against a force acting essentially parallel to the support surface. Retaining plate placement is further facilitated for the user when recesses are present in the retaining plate because the desired positive fit between the structure and the counter-structure is easier to visually assess when the raised portions engage the recesses.

[0017] The structure may comprise two depressions or recesses and the counter-structure may comprise two elevations which are pin-like and which can be brought into engagement with the depressions or recesses.

[0018] This design of the structure and counterstructure is essentially complementary to the previous design and therefore offers the same advantage in terms of ease of handling. The form fit also provides high stability against displacement of the retaining plate perpendicular to the support direction.

[0019] For example, the support surface of the holding plate holder can be perforated. The perforation can, in particular, be grid-shaped. The perforation corresponds to a structure with a plurality of depressions or even recesses.

[0020] The structure may comprise a pin-like elevation and a recess or a groove. In this case, the counterstructure may comprise a groove or a groove that can be positively engaged with the pin-like elevation of the structure, as well as a projection that can be engaged with the recess or groove of the structure.

[0021] In other words, a raised portion of the structure (and thus on the support surface) can be brought into positive engagement with a recess or cutout in the counterstructure (and thus in the retaining plate), and a recess or cutout in the support surface can be brought into positive engagement with a raised portion on the retaining plate. This configuration also simply illustrates to the user the correct positioning of the retaining plate on the support surface and also provides high stability due to the positive engagement.

[0022] A further possibility is that the at least one depression or recess in the structure is groove-like, and the counter-structure comprises at least one complementary elevation which can be brought into positive engagement with the groove-like depression(s).

[0023] A groove is a narrow, elongated depression in a surface, in this case the support surface. The course of the groove-like depression(s) is not limited and can, for example, be straight or curved. The latter particularly includes spirals or concentric circles. An irregular course, reminiscent of a meandering river, is also conceivable. The counterstructure is complementary to this groove-like structure. The grooves can also form geometric shapes such as letters and / or numbers.

[0024] This design also offers the previously mentioned advantages of easy handling and good stability of the mounting of the holding plate on the support surface.

[0025] The mounting system may further comprise a locking element that can assume an open and a closed position. The locking element may comprise a latching hook arranged on the locking element such that, in the closed position of the locking element, it latches with the retaining plate receptacle or the retaining plate, so that the locking element is held in the closed position by the latching hook. The locking element is configured to hold the retaining plate in the closed position against movement perpendicular to the support surface of the retaining plate receptacle.

[0026] A locking hook (also known as a snap hook) is an element for the positive connection of components. A locking hook can comprise a joining part that can be brought into engagement with the component to be connected and establishes the locking connection. For example, the joining part can be a projection on the locking hook that is designed to engage with the other component. A joining part of the locking hook locks with the holding plate receptacle or the holding plate, thus establishing the positive connection. The locking connection can be reversible in that the positive connection between the holding plate receptacle or the holding plate and the locking hook can be released.

[0027] The locking element can be designed to hold the retaining plate in the closed position, even against movement perpendicular to the support surface of the retaining plate holder, so that the retaining plate is held in place along all three axes of movement. The locking element thus holds or fixes the retaining plate in the specified position. The locking element can be designed such that, in the open position, the described movement perpendicular to the support surface is not restricted. The locking mechanism also ensures that the locking element remains in the closed position.

[0028] The locking element can be pivoted between the open and closed positions. Thus, the locking element can have a pivot axis. The pivot axis can lie in the plane of the support surface of the retaining plate holder. Alternatively, the pivot axis can be arranged above the support surface of the retaining plate holder.

[0029] This means that the locking element is not a separate component, but rather is part of the vacuum cleaner or even part of the retaining plate holder, and thus cannot, for example, get lost over time. Pivoting between two fixed positions also makes it easier for the user to handle the locking element and use it correctly in conjunction with the retaining plate and retaining plate holder.

[0030] The retaining plate can have a latching hook bearing section designed to interact with the latching hook, so that the locking element latches with the latching hook bearing section in the closed position. It can be advantageous if the locking element is designed such that the latching hook latches with the retaining plate. This can ensure, for example, that latching only occurs when a retaining plate is arranged on the retaining plate receptacle, and the locking element is only held in the closed position then.

[0031] The mounting system may further comprise a release mechanism configured to release the locking between the locking hook and the mounting plate receptacle or between the locking hook and the mounting plate.

[0032] A release mechanism allows the locking connection between the locking element (or the locking hook) and the retaining plate or retaining plate receptacle to be released again. The locking connection can be released reversibly, so that the locking element can be used for a variety of cycles. To release the locking hook, it can, for example, be (slightly) bent so that the joining part no longer engages positively in the retaining plate receptacle or the retaining plate and is thus released. The release mechanism can therefore comprise a corresponding device for bending the locking hook.

[0033] The retaining system may further comprise a spring element that exerts a spring force that pushes the locking element toward the open position. Alternatively, the spring element may exert a force that counteracts a holding force of the locking hook.

[0034] If the locking hook is not engaged with the retaining plate holder or the retaining plate, the spring force ultimately forces the locking element into the open position, or at least toward the open position. If the locking hook is engaged with the retaining plate holder or the retaining plate, the locking element is held in the closed position by the locking mechanism, counter to the spring force.

[0035] The spring element may comprise a leg spring, a spiral spring, a helical spring, a wheel spring, a bow spring, a bar spring or a leaf spring or may include a combination of the aforementioned spring types.

[0036] The spring element can be attached to the retaining plate holder and / or the locking element. Alternatively, the spring element can also be attached to another component, such as a vacuum cleaner housing. It is important that, in its closed position, a spring force exerted by the spring element acts on the locking element, pushing the locking element toward the open position. In the case of a leg spring, the center of the leg spring can be located on the pivot axis of the locking element. One of the two legs of the leg spring presses against the locking element, while the other leg presses against the retaining plate holder or the housing.

[0037] When the locking mechanism between the locking element and the retaining plate holder or retaining plate is released, the locking element opens automatically and does not require a separate user operation. This simplifies handling or use of the device.

[0038] The retaining plate holder can further comprise a bearing element configured to hold the retaining plate against movement perpendicular to the support surface of the retaining plate holder. Thus, the bearing element restricts movement of the retaining plate at least along one axis.

[0039] When locking the locking element and the retaining plate holder or the retaining plate, it is advisable to hold the retaining plate perpendicular to the support surface to prevent it from moving away from the retaining plate holder in order to improve stability. Furthermore, the bearing element defines the predefined position of the retaining plate on the retaining plate holder, thus providing the user with guidance on how to insert the retaining plate. This simplifies handling for the user and prevents any incorrect insertion of the retaining plate. Furthermore, the bearing element holds the retaining plate in such a way that the retaining plate cannot be lifted from the retaining plate holder by spring force.

[0040] The bearing element can be a rigid component of the retaining plate holder. Alternatively, the bearing element can be a flexible component of the retaining plate holder and can, for example, be pivoted into its intended storage position, in which the retaining plate is fixed, when the retaining plate is arranged on the support surface of the retaining plate holder.

[0041] The advantage of this arrangement of the bearing element is that the retaining plate can be placed freely on the retaining plate holder without being obstructed by the bearing element. This further simplifies handling for the user.

[0042] The retaining plate can be made from recycled and / or renewable raw materials. Recycled materials include, for example, reused (recycled) plastic. Renewable raw materials include, in particular, paper, cardboard, hay, or other plant-based materials. Examples of recycled plastic are recycled polypropylene (rPP), recycled polyethylene (rPE), recycled polyethylene terephthalate (rPET), or mixtures thereof. In particular, recycled plastics can be made according to one or more of the DIN standards EN 15342:2008-02, EN 15344:2008-02, EN 15345:2008-02, or EN 15346:2015-01. Vacuum cleaner filter bags, including the retaining plate, can be disposable. This means they can be designed to be disposed of after use when full. Therefore, for sustainability reasons, it is advantageous to make at least the holding plate from one of the materials mentioned.

[0043] Furthermore, the present invention relates to a vacuum cleaner comprising a housing with a lid and the described mounting system, wherein the mounting system is arranged in a dust collection chamber, wherein the lid is pivotally connected to the housing, and wherein the lid is designed to close the dust collection chamber.

[0044] A vacuum cleaner with the described mounting system also offers the advantages already mentioned in connection with the mounting system. These include, in particular, simplified handling and the prevention of damage to the vacuum cleaner.

[0045] Furthermore, the vacuum cleaner may comprise a mounting system with a closing element, wherein the lid of the housing is closable when the closing element is in the closed position, and wherein the lid of the housing is not closable when the closing element is in the open position.

[0046] The locking element in the open position prevents the housing cover from being closed. The cover is a pivotable part of the housing which, for example, locks into place with the rest of the housing to close it. The locking element in the open position can block the pivoting of the cover by protruding from the housing in the open position, preventing the cover from locking into place with the rest of the housing. As previously explained, if a spring element is provided and no retaining plate is mounted on the retaining plate holder, the locking element will remain in the open position because the locking hook cannot lock into place and the spring force pushes the locking element towards the open position.However, if the lid cannot be closed and remains open, vacuuming will not be possible because the vacuum cleaner will draw ambient air into the fan through the open lid, resulting in no suction. This effectively prevents damage to the vacuum cleaner caused by vacuuming without a vacuum cleaner filter bag, which can be caused, in particular, by dust and dirt getting into the fan.

[0047] The present invention likewise relates to a vacuum cleaner filter bag comprising a filter medium, in particular comprising a nonwoven fabric, and a holding plate firmly connected to the filter medium, wherein the holding plate is a previously described holding plate that is suitable for a previously described holding system. A three-dimensional structure is thus formed in an underside of the holding plate, which structure comprises at least one elevation and / or a depression and / or a recess. The connection between the holding plate and the filter medium can be airtight. The connection can be an adhesive connection, a clamp connection, or a welded connection. The vacuum cleaner filter bag can optionally be a flat bag.

[0048] The compatibility of the vacuum cleaner filter bag with the described holding system (the compatibility is achieved, among other things, by using the previously described holding plate) has the advantage of simplified handling for the user.

[0049] Further features and advantages are explained below using the example figures. They show:

[0050] Figure 1 shows a holding system for holding a vacuum cleaner filter bag in a vacuum cleaner according to a first embodiment in an oblique view;

[0051] Figure 2 shows a mounting system according to a second embodiment in an oblique view;

[0052] Figure 3 shows a mounting system according to a third embodiment in an oblique view;

[0053] Figure 4 shows a mounting system according to a fourth embodiment in an oblique view;

[0054] Figure 5 shows a mounting system according to a fifth embodiment in an oblique view; and

[0055] Figure 6 shows a vacuum cleaner comprising a mounting system in an oblique view.

[0056] In the following and in the figures, the same reference numerals are used for the same or corresponding features in the various embodiments, unless otherwise specified.

[0057] Figure 1 shows a mounting system 20 for holding a vacuum cleaner filter bag in a vacuum cleaner according to a first embodiment. The mounting system 20 comprises a holding plate receptacle 5 with a support surface 5a and a holding plate 2 of the vacuum cleaner filter bag. For clarity, a complete vacuum cleaner filter bag with the holding plate 2 and a filter medium is not shown.

[0058] The support surface 5a has a three-dimensional structure 8 with two raised portions. These raised portions are essentially pin-like. In the example shown, this means that the raised portions are cylindrical, but other shapes are also conceivable. Thus, the cross-section of the raised portions can be not only circular, but also rectangular, triangular, or other shapes, particularly polygonal. Furthermore, the raised portion can also have an angle, so that cones, truncated cones, pyramids, etc. are also possible.

[0059] The holding plate 2 has a top side and a bottom side, with the top side facing upward in the figure. The holding plate 2 has an opening 14 through which a suction air stream laden with dust and dirt is directed into the filter medium during vacuuming. A seal 15, which consists, for example, of or encompasses a thermoplastic elastomer, is located around the opening 14. The bottom side faces the support surface 5a and, when used as intended, is arranged or placed on the support surface 5a.

[0060] A counter-structure 9 complementary to the structure 8 is formed in the underside of the holding plate 2. The counter-structure 9 comprises two recesses in the holding plate 2, which can be brought into positive engagement with the two elevations of the structure 8. A predetermined position of the holding plate 2 on the support surface 5a is determined by means of the structure 8 and the complementary counter-structure 9. In this predetermined position, the holding plate 2 lies in such a way that a suction nozzle can be placed exactly over the opening 14 in the holding plate, creating an airtight connection. This directs the air flow containing dust and dirt through the opening 14 into the filter medium. This also prevents dust and dirt from getting into other components of the vacuum cleaner, for example the fan, where they could cause damage. Since the structure 8 and the counter-structure 9 each have two components (elevations orRecesses), the specified position is clearly defined, and the retaining plate 2 is secured against movements parallel to the support surface 5a or perpendicular to a support direction. Such movements could also be twisting.

[0061] When the holding plate 2 is placed in the specified position on the support surface 5a, the raised portions of the structure 8 and the recesses of the counter-structure 9 engage with each other and create a positive fit, so that the holding plate 2 is held against movement parallel to the support surface 5a or perpendicular to a support direction. The placement of the holding plate 2 on the support surface 5a is indicated by the arrow. Instead of the recesses, depressions in the holding plate 2 can also be provided as the counter-structure 9. In this case, too, a positive fit is achieved together with the raised portions of the structure 8.

[0062] This overall contributes to simplified handling for a user. When inserting the holding plate 2, the user immediately recognizes the position the holding plate must be in on the support surface 5a. The structure 8 and the counter-structure 9 clearly define this position and place the holding plate 2 is easy for the user. A further advantage of the embodiment is that the holding system 20 implements a coding between the holding plate 2 and the holding plate receptacle 5 through the structure 8 and the complementary counter-structure 9. Using this coding, a manufacturer can ensure that only certain vacuum cleaner filter bags can be installed in the vacuum cleaner by coordinating the design of the holding plate receptacle 5 and the holding plate 2 for different vacuum cleaner models.This effectively prevents any impairment or damage to the vacuum cleaner caused by the use of inadequate vacuum cleaner filter bags. This includes, for example, bursting of the vacuum cleaner filter bag due to excessive suction power or suboptimal utilization of the filter bag volume for collecting dust and dirt. Furthermore, the positive fit between structure 8 and counterstructure 9 provides high stability for the mounting of the retaining plate, preventing displacement parallel to the support surface 5a.

[0063] It should be noted that the retaining plate receptacle has a notch and does not, for example, have a rectangular basic shape. The notch can overlap with the opening 14 in the retaining plate, thus leaving sufficient space for the filter medium. The retaining plate can have a concave section in each of two opposite edge sections, referred to as a locking hook bearing section 12a. The purpose of this is explained with reference to Figure 5.

[0064] It is further emphasized that the number and position of the elevations of structure 8 are not limited by the configuration shown. Structure 8 can comprise more than two elevations, for example, three, four, five, or six elevations. The position of the elevations on the support surface 5a is also not predetermined. However, the counterstructure 9 is always complementary to structure 8 and comprises the corresponding number of depressions or recesses. These considerations also apply, in a correspondingly modified manner, to the second to fourth embodiments.

[0065] Figures 2 to 4 show alternative embodiments of the mounting system 20 just explained and largely correspond to the features of the first embodiment. Therefore, the following will omit the identical features and only discuss the differences in detail. The advantages mentioned in connection with the first embodiment also apply to the second to fourth embodiments.

[0066] The mounting system 20 according to the second embodiment, as shown in Figure 2, can in principle be considered the counterpart to the first embodiment. Here, the structure 8 in the support surface 5a comprises two depressions. The depressions have a bottom and thus differ from recesses, which are equivalent to through-openings. However, it should be emphasized that recesses are also possible in this example. The counterstructure 9 in the underside of the holding plate 2 comprises two elevations complementary to the recesses. This allows the structure 8 and the counterstructure 9 to be brought into positive engagement when the holding plate 2 is arranged in the predetermined position on the support surface 5a. The figure itself shows the top side of the holding plate 2; therefore, the counterstructure 9 on the underside is shown in dashed lines.

[0067] Figure 3 shows a third embodiment of the mounting system 20. Here, the structure 8 of the support surface 5a comprises both a recess and a raised portion. The raised portion is, in particular, pin-like and cylindrical. The counterstructure 9 in the underside of the holding plate 2 comprises a complementary raised portion, a recess, and a recess. Accordingly, the raised portion of the structure 8 can be positively engaged with the recess or recess of the counterstructure, and the recess of the structure 8 can be positively engaged with the raised portion of the counterstructure 9.

[0068] It is understood that both the support surface 5a and the underside of the retaining plate 2 can each have a plurality of recesses and elevations. The number of recesses and elevations does not have to match.

[0069] A fourth embodiment of the mounting system 20 is shown in Figure 4. The structure 8 in the support surface 5a has a plurality of groove-like recesses, wherein a groove is generally understood to be a narrow, elongated recess. The distance between adjacent groove-like recesses is not constant, which means that the holding plate 2 can only be placed on the support surface 5a in a form-fitting manner in one possible position. On the underside of the holding plate 2, which is exceptionally shown facing upwards in this figure, complementary elevations are formed as a counterstructure 9, so that the structure 8 and the counterstructure can be brought into positive engagement.

[0070] The formation of groove-like depressions in the support surface 5a is not limited to the example shown. It is also possible to have a different number of depressions; the depressions can be arranged in different directions, for example, in a grid pattern, or the depressions can be random or irregular. The latter possibility includes the possibility of the groove-like depressions being designed in a meandering manner.

[0071] Figure 5 shows a fifth embodiment of the mounting system 20. The mounting system 20 comprises a mounting plate receptacle 5 and a mounting plate 2, as already included in the first embodiment. Furthermore, the mounting system 20 comprises a locking element 4, a spring element 3, and a bearing element 16. The locking element 4 can be pivoted between a closed position and an open position, with the figure showing the locking element 4 in the open position. In addition, the mounting plate 2 is placed on the support surface 5a of the mounting plate receptacle 5 and is thus in the predetermined position. The mounting plate 2 and the support surface correspond to those of the first embodiment. This is also shown in the figure in that the structure 8 on the support surface 5a has two elevations that are positively engaged with two recesses in the mounting plate 2, the counterstructure 9.

[0072] The locking element 4 can be designed to hold the retaining plate 2 in the closed position, even against movement perpendicular to the support surface 5a of the retaining plate receptacle 5. This holds the retaining plate 2 in place along all three axes of movement. The locking element 4 in the closed position thus holds or fixes the retaining plate 2 in the predetermined position. The locking element 4 in the open position can be designed such that the described movement perpendicular to the support surface 5a is not restricted. The locking mechanism also ensures that the locking element 4 remains in the closed position.

[0073] A locking hook 12 is arranged on the locking element 4 on a side of the locking element which faces the support surface 5a.

[0074] The holding plate holder 5 further comprises a bearing element 16. The bearing element 16 is designed to hold the holding plate 2 against movement perpendicular to the support surface 5a of the holding plate holder 5. The holding plate 2 cannot therefore be removed upwards, i.e., vertically to the support surface 5a. Furthermore, the bearing element 16 also fixes the holding plate 2, if necessary, against lateral movements of the holding plate parallel to the support surface 5a. As a result, the holding plate 2 can essentially no longer be moved and is thus held in the specified position.

[0075] The device 20 further comprises a spring element 3. The spring element 3 exerts a spring force on the closing element 4, so that it is pushed towards the open position. The spring element 3 is connected to the closing element 4 and to the holding plate receptacle 5, but is not limited to this arrangement, as there are several possibilities for implementing the spring element 3 to achieve the aforementioned effect. For example, as shown in the figure, a leg spring, torsion spring, or spiral spring can be arranged on the pivot axis 11 of the closing element 4, which exerts a torque when the closing element 4 is pivoted towards the closed position. The connection to the holding plate receptacle 5 serves to stabilize the suspension of the spring element 3. Another possibility is a curved flat spring that is attached to the support surface of the holding plate receptacle 5.When the closing element 4 is in the closed position, it presses on the flat spring, which accordingly exerts a spring force toward the open position. The locking force of the locking mechanism described above is greater than the spring force of the spring element 3. This ensures that the closing element 4 remains in the closed position when locked to the retaining plate 2 of the vacuum cleaner filter bag 1. However, if no retaining plate 2 is locked, the spring element 3 causes the closing element 4 to pivot into the open position due to the spring force.

[0076] The locking element 4 can be essentially U-shaped with two legs. The two legs are particularly symmetrical. The retaining plate is therefore held symmetrically at the two edge sections of the retaining plate, which enables optimal support and even distribution of the acting forces. An advantage of the U-shape is that the two legs firmly fix the retaining plate 2, but at the same time, sufficient space remains between the two legs to prevent the opening and seal of the retaining plate 2 from coming into contact with the locking element 4. The U-shape therefore represents an efficient design that does not restrict the function or geometry of the retaining plate.

[0077] The locking hook 12 is designed to latch onto the latching hook bearing section 12a of the retaining plate when the locking element 4 is in the closed position. As a result, the locking element 4 is held in the closed position against the spring force of the spring element 3. Also important in this context is the bearing element 16, which fixes the retaining plate against movement perpendicular to the support surface of the retaining plate receptacle 5. In other words, the retaining plate 2 is held on the retaining plate receptacle 5 by the bearing element 16 against the spring force (due to the locking between the locking element 4 and the retaining plate 2 by the latching hook). As a result, the retaining plate 2 cannot be lifted upwards away from the retaining plate receptacle 5.

[0078] The closing element 4 can be designed such that, in the closed position, an upper surface of the closing element 4 extends tangentially with a portion of the retaining plate receptacle 5. This allows the user to intuitively recognize that the retaining plate 2 is correctly arranged in the specified position. This ensures that the retaining plate 2, with its seal 15 located around the opening 14, is correctly positioned in all three axes relative to the intake nozzle of a vacuum cleaner, so that the dust-laden air is completely directed through the opening 14.

[0079] Finally, Figure 6 shows a vacuum cleaner 7 according to the present invention. The vacuum cleaner 7 comprises a housing 7a with a pivotable lid 6, which is provided for closing the dust collection chamber. This is shown in the open position (also called the service position), in which a dust collection chamber arranged inside the housing 7a is exposed. Located in the dust collection chamber is a vacuum cleaner filter bag 1 with a holding plate 2. The holding plate 2 is arranged on a holding plate receptacle 5 (or more precisely, its support surface) of the holding system 20. The holding system 20 is a previously described holding system for holding a vacuum cleaner filter bag in a vacuum cleaner.This also includes the closing element 4, which is shown here in the closed position, since a vacuum cleaner filter bag 1 with a holding plate 2 is inserted into the holding system and thus the closing element 4 locks onto the holding plate against the spring force of the spring 3.

[0080] When the locking element 4 is in the open position, the locking element 4 protrudes upwards. This means that the cover 6 of the housing 7a cannot be closed because the locking element 4 prevents the cover 6 from pivoting completely, so that the cover 6 can lock with the rest of the housing 7a. The locking element 4 thus serves as a so-called suction lock. As previously explained, the locking element 4 remains in the open position if there is no locking between the locking hook 12 of the locking element 4 and the holding plate receptacle 5 or the holding plate 2, because the spring force of the spring element 3 presses the locking element into the open position. The housing 7a or the cover 6 cannot therefore be closed without a vacuum cleaner filter bag inserted.

[0081] Vacuuming is not possible with the housing 7a open (or incompletely closed) because the vacuum cleaner 7 draws ambient air into the blower through the open housing 7a, thus failing to develop any suction power. Damage to the vacuum cleaner 7 or the blower caused by the suction of dust and dirt can be reliably prevented in this way because the vacuum cleaner cannot be used for vacuuming without the vacuum cleaner filter bag 1 inserted. The mounting system 20 thus reliably prevents vacuuming without the vacuum cleaner filter bag.

Claims

Claims 1. A holding system (20) for holding a stick vacuum cleaner filter bag (1) in a vacuum cleaner (7), the holding system (20) comprising: a holding plate (2) of the vacuum cleaner filter bag (1), and a holding plate receptacle (5) with a support surface (5a) for the holding plate (2), wherein the support surface (5a) has a three-dimensional structure (8) comprising at least one elevation and / or at least one depression and / or at least one recess, wherein a three-dimensional counter-structure (9) complementary to the structure (8) is formed in the holding plate (2) on a side facing the support surface (5a) in such a way that it can be brought into positive engagement with the structure (8) of the support surface (5a).

2. Mounting system (20) according to claim 1, wherein the structure (8) comprises two elevations which are pin-like, and wherein the counter-structure (9) comprises two depressions or recesses which can be brought into engagement with the pin-like elevations.

3. Mounting system (20) according to claim 1, wherein the structure (8) comprises two depressions or recesses, and wherein the counter-structure (9) comprises two elevations which are pin-like and which can be brought into engagement with the depressions or recesses.

4. The mounting system (20) according to claim 1, wherein the structure (8) comprises a pin-like elevation and further a depression or recess, wherein the counter-structure (9) comprises a depression or a recess that can be engaged with the pin-like elevation of the structure, and wherein the counter-structure (9) further comprises an elevation that can be engaged with the depression or the recess of the structure.

5. Mounting system (20) according to claim 1, wherein the at least one depression or recess in the structure (8) is groove-like, and wherein the counter-structure (9) comprises at least one complementary elevation which can be brought into positive engagement with the groove-like depression(s).

6. A mounting system (20) according to any one of the preceding claims, further comprising a locking element (4) which can assume an open position and a closed position, wherein the locking element (4) comprises a latching hook (12), wherein the latching hook (12) is arranged on the locking element (4) such that, in the closed position of the locking element (4), it latches with the holding plate receptacle (5) or the holding plate (2), so that the locking element (4) is held in the closed position by the latching hook (12), and wherein the locking element (4) is designed to hold the holding plate (2) in the closed position against movement perpendicular to the support surface (5a) of the holding plate receptacle (5).

7. The mounting system (20) according to claim 6, wherein the closing element (4) is pivotable between the open position and the closed position.

8. Mounting system (20) according to claim 6 or 7, wherein the holding plate (2) has a latching hook bearing section (12a) which is designed to cooperate with the latching hook (12) so that the closing element (4) latches with the latching hook bearing section (12a) in the closed position.

9. Mounting system (20) according to one of claims 6 to 8, further comprising a release mechanism which is designed to release the locking between the locking hook (12) and the holding plate receptacle (5) or between the locking hook (12) and the holding plate (2).

10. A mounting system (20) according to any one of claims 6 to 9, further comprising a spring element (3) exerting a spring force that urges the closing element (4) toward the open position.

11. Mounting system (20) according to one of the preceding claims, wherein the holding plate receptacle (5) further comprises a bearing element (16) which is designed to hold the holding plate (2) against a movement perpendicular to the support surface (5a) of the holding plate receptacle (5).

12. Mounting system (20) according to one of the preceding claims, wherein the holding plate (2) comprises a material made of recycled materials and / or renewable raw materials.

13. Vacuum cleaner (7) comprising a housing (7a) with a lid (6) and a holding system (20) according to one of the preceding claims, wherein the holding system (20) is arranged in a dust collection chamber, wherein the lid (6) is pivotally connected to the housing (7a), and wherein the lid (6) is designed to close the dust collection chamber.

14. Vacuum cleaner according to claim 13, comprising a holding system (20) according to one of claims 6 to 12, wherein the lid (6) of the housing (7a) is closable when the closing element (4) is in the closed position, and wherein the lid (6) of the housing (7a) is not closable when the closing element (4) is in the open position.

15. Vacuum cleaner filter bag (1), comprising: a holding plate (2), and a filter medium, which in particular comprises a nonwoven fabric, wherein a three-dimensional structure (9) comprising at least one elevation and / or a depression and / or a recess is formed in an underside of the holding plate (2), wherein the holding plate (2) is suitable for a holding system (20) according to one of claims 1 to 12, wherein the holding plate (2) and the filter medium are firmly connected to one another, and wherein the vacuum cleaner filter bag (1) is optionally a flat bag.

Images