Dust collection chamber for a vacuum cleaner

Abstract

This invention relates to a dust collection chamber for a vacuum cleaner, and more particularly to a removable dust collection chamber that allows for easy discharge of collected dust and debris. The dust collection chamber has: an air inlet through which air can enter; an air outlet through which air can exit; and a discharge opening through which dust and debris can be removed. The discharge opening has an openable cover that is kept closed by a locking mechanism. The dust collection chamber contains a dust collection panel that is movable toward and away from the discharge opening. The dust collection panel can be moved by an operating handle connected to an actuator for remotely releasing the locking mechanism.

Description

Technical Field

[0001] The present invention relates to a dust collection chamber for a vacuum cleaner, and more particularly to a removable dust collection chamber, thereby allowing easy discharge of collected dust and debris. Background Technology

[0002] Vacuum cleaners have a motor that typically drives an impeller to generate airflow. The vacuum cleaner head has an opening in its bottom wall through which air can enter, carrying dust and debris into the head. The air is configured to transport the dust and debris through one or more airflow channels within the head. The dust and debris are then conveyed via these channels to a dust collection chamber. The air then passes through one or more filters before leaving the vacuum cleaner, filters configured to trap the dust and debris within the dust collection chamber for subsequent discharge.

[0003] The dust collection chamber may contain or include disposable bags, the walls of which may also serve as filters. Alternatively, the dust collection chamber may be a container that can be removed from and emptied from a vacuum cleaner and reinstalled in the vacuum cleaner for reuse. This invention relates to this alternative type of dust collection chamber.

[0004] Many vacuum cleaners are corded. Most household corded vacuum cleaners fall into two main categories. The first type is often called a canister vacuum cleaner. In a canister vacuum cleaner, the nozzle is connected to the handle, which in turn is connected to a hose. Dust and debris travel through the hose to the dustbin. The dustbin is located in a separate body from the nozzle and also contains the motor. This body typically has wheels or sliders, allowing it to be pulled across the floor during cleaning.

[0005] The second type is usually called an upright vacuum cleaner. In an upright vacuum cleaner, the motor and dust chamber are supported by the operating handle, or in some cases, are integrally formed so that the main body containing the motor and dust chamber is usually located on the nozzle during cleaning operations.

[0006] Battery-powered vacuum cleaners are also known, and may employ slightly different methods, housing the battery, motor, impeller, and dust chamber all within the vacuum head. Therefore, the operating handle connected to the vacuum head is used only to manipulate the vacuum head on the floor being cleaned. A battery-powered vacuum cleaner is described in patent application WO 2012 / 085567.

[0007] Vacuum cleaners conforming to WO 2012 / 085567 have a dust collection chamber that is removable from the nozzle and transported to a trash can or similar location for discharging collected dust and debris. A filter is located within the dust collection chamber's cover or top cover and is removed along with the dust collection chamber. The top cover containing the filter can be opened at the discharge station to empty the dust collection chamber.

[0008] Cyclone dust collection chambers are well-known. They typically have an outer chamber for fibrous dust and an inner chamber for fine dust and debris. Air and fine dust and debris enter the inner chamber from the outer chamber through a perforated hood. The top cover of the cyclone dust collection chamber can be located at the end of the chamber, and the end of the chamber is usually placed in the opening of a larger container, such as a kitchen garbage can or similar container, before the top cover is opened, thereby minimizing the possibility of any collected dust and debris spilling out.

[0009] The first known (and common) problem with cyclone dust collection chambers is that dust and debris can become trapped between the perforated hood and the walls of the outer cavity. It is not uncommon for users to have to break up the compressed dust and debris to release it from the outer cavity, and it is also undesirable for users to use their fingers to pull out the stuck debris.

[0010] A second known (and common) problem with cyclone dust collection chambers lies in the separation of fine dust from fibrous debris. When discharged into containers such as kitchen garbage cans, denser fine dust typically falls into the container first. At least some of the fine dust remains suspended in the air, and care is taken to ensure that this suspended dust remains within the container. However, even so, when fibrous debris subsequently falls into the container, it expels at least some of the suspended dust, causing it to escape from the container into the surrounding environment, which is clearly undesirable. The likelihood of suspended dust escaping from the container is further exacerbated if, as is commonly the case, the user must shake the dust collection chamber to release the fibrous debris from the outer cavity.

[0011] A third known problem with cyclonic dust collection chambers is their space efficiency. As fibrous debris swirls around the outer cavity, it becomes relatively airy. Furthermore, if the collected dust fills too much of the chamber, it can clog the perforations in the hood and become more difficult to remove. To minimize this problem, manufacturers provide transparent dust collection chambers with a "maximum fill" marker that users should expect to observe, and empty the chamber when the collected dust reaches a certain level. It is often surprising that even large cyclonic dust collection chambers collect so little dust before reaching the "maximum fill" level.

[0012] One of the design intentions of WO 2012 / 085567 is to utilize airflow to compress dust and debris into "bundles" within the dust collection chamber, making them easy to remove when the dust collection chamber lid is opened. Because fibrous debris and fine dust are combined in the bundles, the likelihood of suspended dust being generated during discharge is significantly reduced. Production embodiments are particularly successful in achieving these goals, but users still experience some degree of dust exposure during discharge. Furthermore, the production embodiments have relatively large lids and correspondingly large openings through which the bundles are discharged; the dust collection chamber enters the container to empty the cavity, and the container must have a fairly large opening through which the dust collection chamber can access and remain within during discharge.

[0013] WO2017 / 144918 also utilizes a dust collection chamber, characterized by the combination and collection of fibrous debris and fine dust together, and shares the advantages offered by this layout. Furthermore, a movable dust collection panel is located within the dust collection chamber and connected to an operating handle located outside the chamber. The user can move the dust collection panel via the operating handle to push the collected dust and debris out through the discharge opening. The dust collection panel reduces the likelihood of the user needing to handle the collected dust and debris, particularly reducing the likelihood of inserting fingers to swat away the collected dust and debris, thereby significantly reducing the possibility of fine dust remaining suspended in the air.

[0014] While the mass-production embodiment of WO 2017 / 144918 has been commercially successful, the inventors have recognized that further reducing user contact with the dust chamber during emptying is desirable. In particular, it is understandable that over time, even the most diligent users will accumulate fine dust and grime around the dust chamber of a vacuum cleaner, especially around the exhaust opening and the locking mechanism of the cover. Contact with the dirty areas of the dust chamber can transfer dust and grime to the user's hands. This can be unpleasant and unhygienic, and may also cause dust and grime to be transferred to other (clean) surfaces. Summary of the Invention

[0015] The purpose of this invention is to provide a dust collection chamber for a vacuum cleaner that further reduces the need for the user to touch and / or hold the components of the dust collection chamber, especially during the emptying process.

[0016] Another object of the present invention is to maintain the advantages of the layout of WO 2017 / 144918, that is, to collect fibrous debris and fine dust together, and to discharge the collected dust and debris through the discharge opening via the dust removal panel.

[0017] While the present invention is particularly useful for battery-powered vacuum cleaners, it is not limited to such uses.

[0018] According to the present invention, a dust collection chamber for a vacuum cleaner is provided, characterized in that the dust collection chamber has an air inlet through which air can enter the dust collection chamber and an air outlet through which air can leave the dust collection chamber, the dust collection chamber also has a discharge opening having an openable cover, the cover being kept closed by a locking mechanism, and a dust removal plate in the dust collection chamber being movable toward and away from the discharge opening, the dust removal plate being movable by an operating handle connected to an actuator for releasing the locking mechanism.

[0019] Therefore, in addition to allowing users to move the dust collection plate without touching the panel, the operating handle also allows users to release the locking mechanism to open the cover without touching the locking mechanism or the cover. Users can then hold the dust collection chamber and operate the operating handle to open the cover, pushing the collected dust and debris out through the discharge opening with minimal contact with the dust collection chamber, especially near the discharge opening where there is almost no or no contact.

[0020] Preferably, the operating handle is directly connected to the actuator, so that movement of the operating handle is directly transmitted to the actuator. Nevertheless, indirect connection of the operating handle to the actuator via linkages and / or other components is not excluded, but a direct connection between the operating handle and the actuator reduces the mechanical complexity of the dust collection chamber.

[0021] Preferably, the operating handle is directly connected to the dust collection plate, so that movement of the operating handle is directly transmitted to the operating handle, and during the emptying step, the operating handle and the dust collection plate move together toward and away from the discharge opening. The direct connection between the operating handle and the dust collection plate also reduces the mechanical complexity of the dust collection chamber.

[0022] Preferably, and similar to WO2017 / 144918, the dust collection chamber is generally tubular, having a first end and a second end, with the discharge opening located at the second end. The dust collection panel is preferably movable between a stationary position adjacent to the first end and an empty position adjacent to the second end. Similarly, the operating handle is preferably movable between a first position adjacent to the first end and a second position adjacent to the second end. The dust collection panel is configured such that when the operating handle is in its first position, it is in its stationary position (and the vacuum cleaner can be used to collect dust and debris). It is also configured such that when the operating handle is in its second position, the dust collection panel is in its empty position (adjacent to the discharge opening).

[0023] Advantageously, the operating handle has a release position for releasing the latch. Preferably, the release position is between a first position and a second position. Therefore, when the operating handle moves from its first position to its second position, the operating handle passes through the release position and releases the latch mechanism. Thus, the release of the latch mechanism is substantially automatic and does not require any special movement of the operating handle or related components.

[0024] Advantageously, the release position is closer to the first position than the adjacent second end, and most ideally very close to the first position. Thus, the locking mechanism is released and the cover of the dust collection chamber can be opened, which substantially coincides with the start of the movement of the dust collection plate, thereby pushing the collected dust and debris more or less immediately away from the dust collection chamber, rather than becoming (partially) compressed before the cover is opened.

[0025] Similar to WO 2017 / 144918, the dust chamber can be removed from the vacuum cleaner body or nozzle. Therefore, users can remove the full dust chamber and take it to a location where the collected dust and debris can be emptied. Also similar to WO2017 / 144918, it can be configured so that the dust chamber is only installed in the vacuum cleaner when the dust collector plate is in its stationary position, thus preventing the vacuum cleaner from being used in a way that allows dust and debris to collect "behind" the dust collector plate.

[0026] Preferably, the cover is elastically biased to the open position. While the cover could potentially be opened by gravity, i.e., by the user tilting the dust chamber during the emptying step, it is preferable to bias the cover open upon release of the latch, as this provides a more secure step during the emptying process. Preferably, the cover is rotatably mounted via a hinge. Advantageously, a torsion spring provides the elastic offset, ideally mounted at or near the hinge.

[0027] Preferably, the lid pivots at least 90° during the opening movement, and advantageously about 120°. It is understood that a resilient, gravity-based opening movement of the lid is preferred over, for example, gravity-based opening, as it ensures that the lid is fully opened rather than only partially opened. An opening movement of at least 90° particularly reduces the likelihood that any collected dust and debris will come into contact with the lid during discharge.

[0028] Preferably, the locking mechanism includes a locking member that engages a portion of the cover to hold the cover in a closed position. Also preferably, the locking mechanism includes a locking lever. Advantageously, the locking lever connects the locking member located at the second end of the dust collection chamber to a locking element located at the first end of the dust collection chamber. The locking lever enables the locking member to be actuated to some extent distally, particularly by means of the locking element located at or adjacent to the first end of the dust collection chamber. Therefore, the actuator can be configured to engage and move the locking element located at the first end of the dust collection chamber, the movement being transmitted by the locking lever to release the locking member located at the second end of the dust collection chamber.

[0029] Preferably, the dust collector plate is slidably mounted on a guide rail; ideally, the guide rail defines the edge of the air inlet opening of the dust collection chamber. Advantageously, the dust collector plate is connected to a slider, which is slidably mounted on the guide rail. Also advantageously, an operating handle is connected to the slider, thereby providing a common mounting for both the dust collector plate and the operating handle.

[0030] The actuator is preferably movable between an actuating position and a non-actuating position. Advantageously, the actuator can rotate or pivot between its actuating position and its non-actuating position. A movable actuator is advantageous because it allows the actuator to selectively engage and move the locking element. In particular, when the operating handle moves from its first position to its second position, the actuator can engage and move the locking element (and release the locking mechanism). However, when the operating handle moves back to its first position, the actuator can move to the non-actuating position and pass the locking element without releasing the locking mechanism.

[0031] Preferably, the actuator is mounted to the slider, thereby providing a common mounting for the dust removal plate, the operating handle, and the actuator.

[0032] Preferably, the actuator is not circular. Advantageously, the actuator has a protruding edge that can engage a flange. It can be configured such that, when the actuator moves in a direction from the first end to the second end, the protruding edge engages the flange to hold the actuator in its actuated position, whereby the actuator can engage and move the locking element. On the other hand, when the actuator moves in a direction from the second end to the first end, the actuator can rotate to its non-actuated position, in which the protruding edge does not engage the flange, whereby the actuator can pass through the locking element without moving the locking element. The flange is preferably part of the slider.

[0033] Preferably, the locking mechanism includes a resilient offset element that offsets the locking member to a position where it can hold the cover closed. Advantageously, the resilient offset element engages the locking lever. Therefore, the resilient offset element does not need to be directly connected to the locking member, but can be indirectly connected to the locking member via the locking lever. It can thus be configured such that the resilient offset element of the locking mechanism is located at the discharge opening at the second end away from the dust collection chamber, and can be located adjacent to the first end if necessary. This minimizes the number and complexity of components located at the discharge opening. Since the area around the discharge opening is where most dust and dirt will inadvertently accumulate, minimizing the number and complexity of components in the area will allow the user to better maintain the area's cleanliness and make the normal operation of the locking mechanism more reliable.

[0034] Similar to WO 2017 / 144918, the dust collection chamber may have a filter between the air inlet and outlet, or downstream of the dust collection chamber, as required.

[0035] Advantageously, the air inlet extends from a position adjacent to the first end to a position adjacent to the second end. Similar to the dust collection chamber of prior art vacuum cleaners, the dust collection chamber of this invention is configured to span the body or nozzle of the vacuum cleaner, and ideally is located close to the rotating brush. Ideally, the dust collection chamber spans substantially the entire width of the body or nozzle, and the air inlet also spans substantially the entire width. Attached Figure Description

[0036] The invention will now be described in more detail by way of example and with reference to the accompanying drawings, wherein:

[0037] Figure 1 A first perspective view of the dust collection chamber according to the invention with the lid closed is shown;

[0038] Figure 2 show Figure 1 A second perspective view of the dust collection chamber when the cover is open;

[0039] Figure 3 show Figure 1 and 2 A three-dimensional view of the components of the dust collection chamber from the rear when the dust collection plate is in a stationary position;

[0040] Figure 4 show Figure 3 A slightly enlarged rear view of the components of the dust collection chamber;

[0041] Figure 5 show Figure 1 and 2 A perspective view of the components of the dust collection chamber from the rear when the actuator is in the release position;

[0042] Figure 6 show Figure 5 A slightly enlarged rear view of the components of the dust collection chamber;

[0043] Figure 7 show Figure 1 and 2 A three-dimensional view of the components of the dust collection chamber from the rear when the dust removal plate is in the empty position;

[0044] Figure 8 show Figure 1 and 2 The components of the dust collection chamber are shown in a rear perspective view when the actuator is in its non-acting position;

[0045] Figure 9 show Figure 8 A slightly enlarged rear view of the components of the dust collection chamber. Detailed Implementation

[0046] Figure 1 and 2 The dust collection chamber 10 of a vacuum cleaner is shown. Since the type and detailed structure of the vacuum cleaner are irrelevant to this invention, the vacuum cleaner is not shown in the accompanying drawings.

[0047] The only relevant feature of the vacuum cleaner is that it has a removable dust collection chamber 10. Therefore, similar to known designs of vacuum cleaners, and specifically to those described in WO 2017 / 144918, the dust collection chamber 10 can be removed from the body or nozzle of the vacuum cleaner and carried to a selected emptying location. Also similar to known designs, the dust collection chamber has an air inlet 12 through which dust and debris can enter during use, and an air outlet (not shown) through which air can pass. In a known manner, a filter (also not shown) is located at the air outlet to trap dust and debris in the dust collection chamber 10.

[0048] Dust collection chamber 10 has a discharge opening 14 with an openable cover 16. Figure 2 Covering Figure 1 It is displayed in its closed position, and in Figure 2 The cover 16 is shown in its open position. It is mounted via a hinge 18 with a torsion spring 20. The spring 20 offsets the cover 16 to... Figure 2 The cover 16 is in the open position, and it can be seen that in this embodiment, the cover 16 pivots by an arc of about 120° between its closed position and its open position. The open cover 16 thus hardly obstructs the dust and debris discharged from the dust collection chamber 10, and reduces the possibility that any dust and debris may inadvertently come into contact with the cover 16 during emptying.

[0049] The cover 16 is held closed by the locking member 22 (resisting the offset of the spring 20). The locking member 22 can be positioned as follows: Figure 3 The position shown is the same as... Figure 5 The device moves between the shown release positions. When the cover 16 is closed and the locking member 22 is in its holding position, a portion of the locking member covers a portion of the cover. The cooperating components of the locking member 22 and the cover 16 are not clearly shown in the drawings, and their details are secondary to the present invention. In other words, it should be understood that the cooperating components of the locking member 22 and the cover 16 can take many different detailed forms without departing from the present invention.

[0050] Figure 2 The dust collection chamber 10 also displays the dust collection plate 24 and the operating handle 26. For example... Figure 7 As shown in a more detailed view, the dust removal plate 24 is mounted to the slider 30, and the slider is slidably mounted to the guide rail 32, which extends along the top of the inlet 12 and defines the top of the inlet 12 in this embodiment.

[0051] Part of guide rail 32 in Figure 1 and 2 This can also be seen in the image. In this embodiment, the operating handle 26 is also directly mounted to the slider 30. When the dust collection chamber 10 is already in the... Figure 1 and 2When the rest of the vacuum cleaner is removed, the operating handle becomes accessible, and the user can move the operating handle 26, thereby moving the slider 30 along the guide rail 32.

[0052] Figure 1 This indicates that the operating handle 26 is in a first position adjacent to the first end of the dust collection chamber 10. When the operating handle 26 is in its first position, the dust collection plate 24 is in its stationary position, and the vacuum cleaner can be used to collect dust and debris in the dust collection chamber 10.

[0053] Figure 2 This indicates that the operating handle 26 is in its second position, adjacent to the second end of the dust collection chamber 10. When the operating handle 26 is in its second position, the dust collection panel 24 is in the empty position as shown. When the dust collection panel 24 moves to its empty position, the collected dust and debris are pushed away from the dust collection chamber 10.

[0054] Figure 3 The dust removal panel 24 is shown in its stationary position (the first end of the dust collection chamber 10 is in...). Figure 1 and 2 The middle is located on the right, while... Figure 3-9 The middle is located on the left, because Figure 1 and 2 Showing the front view, while Figure 3-9 Show the rear view).

[0055] like Figure 3 , 5 As most clearly seen in 7 and 8, the dust collector plate 24 comprises a grid with relatively large openings. Nevertheless, the dust collector plate 24 is still effective in pushing dust and debris away from the dust collection chamber 10, since dust and debris most typically consist of "bundles" of dust and debris in fibrous clumps. Nevertheless, it should be understood that the form of the dust collector plate is secondary to the present invention, and in other embodiments, it may be a solid plate.

[0056] Figure 3 and 4 The actuator 34 is also mounted to the slider 30 and thus moves along with the operating handle 26 and the dust removal plate 24. The actuator 34 is rotatably mounted to the slider 30 via a pair of arms 36 (only one arm is clearly visible) and a pivot pin 40. This rotatable mounting of the actuator 34 allows it to move as... Figure 3-7 The execution location shown is similar to... Figure 8 and 9 The non-execution positions shown are rotated at a finite angle, as detailed below.

[0057] like Figure 3 and 4 As seen, the actuator 34 is non-circular and, in particular, has a protruding edge 42. The protruding edge 42 engages with the flange 44 of the slider 30, and this engagement prevents the actuator 34 from moving towards... Figure 3-6 Rotate counterclockwise from the viewpoint shown.

[0058] Figure 3 and 4 This indicates that the components of dust collection chamber 10 are in a state of... Figure 1 The dust collection chamber 10 is in a closed state and at the start of the emptying process. Therefore, the cover 14 is closed and held closed by the locking member 22. The operating handle 26 is in its first position, and the dust collection plate 24 is in a stationary position at the first end of the dust collection chamber 10.

[0059] To empty the dust collection chamber 10, move the operating handle to... Figure 1 and 2 Move to the left in (and towards) Figure 3-6 (Move to the right in the middle). During this movement, actuator 34 engages as follows: Figure 5 and 6 The locking element 46 is visible.

[0060] The locking element 46 is pivotally mounted to the frame element 48 of the dust collection chamber. The locking element 46 is connected to the locking rod 50, a portion of which is in… Figure 3 and 4 It is visible in the frame, but most of it is hidden behind the frame element 48. The latching lever 50 interconnects the latching member 22 with the latching element 48 so that the pivoting movement of the latching element 46 causes a corresponding movement of the latching member 22.

[0061] One end of the tension spring 52 is connected to the bracket 54, which in turn is connected to the locking lever 50. The other end of the tension spring 52 is connected to the frame element 48. The tension spring 52 pulls the locking lever 50 towards... Figure 4 , 6 And the leftward offset of the view shown in Figure 9. The leftward offset of the latch lever 50 is transmitted to the latch member 22, and is thereby offset to a position where it can keep the cover 14 closed.

[0062] The leftward offset of the locking lever 50 is also transmitted to the locking element 46, and the locking element is in Figure 3 and 4 The position where it is offset by spring 52 is shown in the image.

[0063] from Figure 6 Specifically, it can be seen that the operating handle 26 is automatic Figure 4 The actuator 34 engages the locking element 46 after moving only a short distance from its first position. Engagement with the locking element 46 attempts to rotate the actuator 34 counterclockwise in the direction shown in the view, but the rotation is blocked by the protruding edge 42 engaging the flange 44 of the slider 30.

[0064] Since the actuator 34 cannot rotate when passing the locking element 46, it drives the locking element to rotate counterclockwise in the direction shown in the view to resist the deflection of the spring 52. This rotation of the locking element 46 causes a corresponding movement of the locking lever 50 and the locking member 22, specifically moving the locking member 22 to its position. Figure 5 The release position. Cover 14 is released, causing torsion spring 20 to move the cover to its release position. Figure 2 The opening position. Therefore, Figure 5 and 6 This indicates the release position of actuator 34, which is also the position of the release cover of the locking mechanism.

[0065] The movement of the operating handle 26 away from its first position continues until the operating handle reaches such a position. Figure 7 The second position is shown. During this movement, the dust collector plate 24 pushes the collected dust and debris toward and out through the discharge opening 14. If necessary, the dust collection chamber can be operated (and shaken if necessary) to allow gravity-assisted removal of dust and debris from the dust collection chamber 10.

[0066] It should be understood that once the actuator 34 passes the locking element 46, the spring 52 will return the locking element 46, the locking lever 50, and the locking member 22 to the position as follows: Figure 7 The holding position is shown. Therefore, when the cover 14 is subsequently pushed to its closed position, the locking member 22 moves to close the cover, and then returns under the offset of the spring 52 to keep the cover 14 closed.

[0067] The operating handle 26 can then be slid back to its first position. Figure 8 and 9 As can be seen, when the actuator 34 passes the locking element 46, it can rotate clockwise in the direction shown in the view to pass the locking element 46, and the locking element will not move (therefore the locking rod 50 or the locking member 22 will not move either).

[0068] If necessary, the dust collection chamber 10 can be configured such that it cannot be installed onto the body or nozzle of the vacuum cleaner unless the operating handle 26 is in its first position, thus ensuring that the dust collection plate remains in its stationary position during vacuum cleaner use.

Claims

1. A dust collection chamber for a vacuum cleaner, characterized in that, The dust collection chamber has an air inlet through which air can enter the dust collection chamber and an air outlet through which air can leave the dust collection chamber. The dust collection chamber also has a discharge opening with an openable cover, which is kept closed by a locking mechanism. The dust collection chamber contains a dust collection plate that can move toward and away from the discharge opening. The dust collection plate can be moved by an operating handle connected to an actuator for releasing the locking mechanism.

2. The dust collection chamber according to claim 1, characterized in that, The operating handle is directly connected to the actuator.

3. The dust collection chamber according to claim 1 or claim 2, characterized in that, The operating handle is directly connected to the dust removal plate.

4. The dust collection chamber according to claim 1, characterized in that, The dust collection chamber has a first end and a second end, and the discharge opening is located at the second end, wherein the operating handle is movable between a first position adjacent to the first end and a second position adjacent to the second end, and wherein the operating handle has a release position for releasing the locking mechanism, the release position being between the first position and the second position.

5. The dust collection chamber according to claim 4, characterized in that, The release position is closer to the first position than the second position.

6. The dust collection chamber according to claim 5, characterized in that, The release position is adjacent to the first position.

7. The dust collection chamber according to claims 1 to 7, characterized in that, The cover is rotatably mounted via a hinge.

8. The dust collection chamber according to claim 7, characterized in that, The cover can rotate at least 90°.

9. The dust collection chamber according to claims 1 to 8, characterized in that, The cover is elastically shifted to the open position.

10. The dust collection chamber according to claims 1 to 9, characterized in that, The locking mechanism has a locking member and an elastic offset element, the elastic offset element offsetting the locking member to a holding position.

11. The dust collection chamber according to claims 1 to 10, characterized in that, The locking mechanism includes a locking rod connected to the locking member.

12. The dust collection chamber according to claim 11, wherein, when attached to claim 10, the resilient offset element is connected to the locking rod.

13. The dust collection chamber according to claim 11 or claim 12, characterized in that, The dust collection chamber has a first end and a second end, the discharge opening is located at the second end, wherein the locking rod connects the locking member to the locking element, and wherein the locking element is located at the first end adjacent to the dust collection chamber.

14. The dust collection chamber according to claim 13, characterized in that, The actuator engages with the locking element to release the locking mechanism.

15. The dust collection chamber according to claims 1 to 14, characterized in that, Both the dust removal plate and the operating handle are connected to the slider, which is slidably mounted on the guide rail.

16. The dust collection chamber according to claim 15, characterized in that, The actuator is also mounted on the slider.

17. The dust collection chamber according to claims 1 to 16, characterized in that, The actuator can move between an execution position and a non-execution position.

18. The dust collection chamber according to claim 17, characterized in that, The actuator rotates between its execution position and its non-execution position.

19. The dust collection chamber according to claims 1 to 18, characterized in that, The actuator is not circular.

20. The dust collection chamber according to claim 19, characterized in that, The actuator has a protruding edge.

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