Suction device with locking mechanism for upper and lower housing parts

Abstract

The invention relates to a vacuum device (10) with a vacuum housing (11), wherein the vacuum housing (11) has a dust collection chamber (15) and a suction inlet through which a suction flow can enter the dust collection chamber (15), wherein the vacuum housing has a lower housing part (30) and an upper housing part (40) that can be arranged on the lower housing part (30), wherein a vacuum motor for generating the suction flow is arranged in the upper housing part (40), wherein the upper housing part (40) is adjustable between a closed position (S), in which the upper housing part (40) closes an interior space (35), in particular the dust collection chamber (15), of the lower housing part (30), and an open position (O), in which the upper housing part (40) has a greater distance to the lower housing part (30) than in the closed position (S) and opens the interior space (35) of the vacuum housing.wherein the suction device has a fixing device (50) for fixing the upper housing part (40) to the lower housing part (30) in the closed position (S), wherein the fixing device (50) in a fixing position (F) associated with the closed position (S) fixes the upper housing part (40) and the lower housing part (30) to each other and in a release position (L) allows the upper housing part (40) and the lower housing part (30) to be removed from each other. The fixing device (50) is adjustable into the fixing position (F) by an assembly movement of the upper housing part (40) relative to the lower housing part (30) along a fixing track (FB) and has at least one detent arrangement (60, 80) with a detent contour (62, 82) and a detent element (61, 81) which is spring-loaded into a detent position (RS) associated with the fixing position (F) and is moved by the assembly movement from a detent release position (RF) associated with the release position (L), in which the detent element is out of engagement with the detent contour (62, 82).82) is movable into the detent position (RS) in which the detent element is engaged with the detent contour (62, 82).

Description

[0001] The invention relates to a vacuum cleaner with a vacuum housing, wherein the vacuum housing has a dust collection chamber and a suction inlet through which a suction flow can enter the dust collection chamber, wherein the vacuum housing has a lower housing part and an upper housing part that can be arranged on the lower housing part, wherein a vacuum motor for generating the suction flow is arranged in the upper housing part, wherein the upper housing part is adjustable between a closed position, in which the upper housing part closes an interior space, in particular the dust collection chamber, of the lower housing part, and an open position, in which the upper housing part has a greater distance to the lower housing part than in the closed position and exposes the interior space of the vacuum cleaner housing, wherein the vacuum cleaner has a fixing device for fixing the upper housing part to the lower housing part in the closed position.wherein the fixing device, in a fixing position associated with the closing position, fixes the upper and lower housing parts together and, in a release position, allows the upper and lower housing parts to be removed from each other.

[0002] A vacuum cleaner of this type is described, for example, in DE 10 2009 015 644 A1. The vacuum cleaner has an upper and a lower housing part that can be connected to each other by means of hinged tabs. Operation is typical for vacuum cleaners of the workshop type, because the upper housing part must be completely removed from the lower housing part, for example, to empty the dust collection chamber or to replace a filter bag located therein.

[0003] Based on this, the object of the present invention is to provide a suction device with an improved fixing device.

[0004] To solve the problem, a suction device of the type mentioned above is provided in such a way that the fixing device can be adjusted into the fixing position by an assembly movement of the upper housing part relative to the lower housing part along a fixing path, and that the fixing device has at least one detent arrangement with a detent contour and a detent element which is spring-loaded into a detent position associated with the fixing position and which, by the assembly movement of the upper housing part relative to the lower housing part, can be moved from a detent release position associated with the release position, in which the detent element is out of engagement with the detent contour, into the detent position in which the detent element is in engagement with the detent contour.

[0005] In the locked position, the upper housing part and the lower housing part are preferably held together in a tensile-resistant manner in the direction of the fixing track or in relation to a tensile force acting along the fixing track, at least with a fixing force necessary to support the suction device on its upper housing part.

[0006] A fundamental principle of the present invention is that a simple locking action of the locking element with the locking contour is sufficient to fix the upper and lower housing parts together. The locking arrangement allows for particularly easy operation because, for example, simply attaching or pushing the upper housing part onto the lower housing part is sufficient.

[0007] The lower part of the housing is designed, for example, in the form of a tray or has a receiving tray that provides the dust collection space.

[0008] Advantageously, the lower housing is equipped with casters, allowing the vacuum cleaner to be rolled across a surface. Preferably, three or four casters are provided. It is particularly advantageous if the lower housing is fitted with two swivel casters and two fixed casters, thus facilitating maneuverability on a surface.

[0009] Typically, the lower housing part rests on a surface, while the upper housing part is adjusted relative to the lower housing part, for example, attached to or removed from it. The following description explains how to operate or handle the upper housing part in relation to the lower housing part. Of course, it is also possible to remove the lower housing part from or attach it to the upper housing part if the upper housing part is held stationary. However, typically the lower housing part will be resting on a surface, which is why the assembly operation takes place on the upper housing part; that is, the upper housing part is moved relative to the lower housing part.

[0010] Basically, one can also formulate it as follows: the fixing path defines a relative movement of the upper and lower parts of the housing to each other.

[0011] The release path, which will be explained in more detail, can also define a relative movement between the upper and lower parts of the housing.

[0012] It should be noted that, apart from the fixing device, the upper and lower housing parts are preferably not connected to each other. Therefore, once the fixing device has reached or is in its released position, it is possible to move the upper housing part freely away from the lower housing part, for example, to place it on a surface.

[0013] However, it is also possible that the upper and lower housing parts are movably mounted to each other by means of a housing bearing, in particular a housing swivel bearing. Thus, for example, the upper housing part can be pivoted away from the lower housing part when the locking device has reached its release position or is in the release position.

[0014] The housing bearing or housing swivel bearing advantageously comprises bearing components that are engaged with each other in the closed position, but can be disengaged from each other when moving from the closed position. The bearing components can be formed, for example, by a detent element and a detent contour, a hook element and a hook contour, or the like. It is particularly preferred if the bearing components are formed by a release contour, which will be described in detail later, and a release-abutment contour that interacts with it. The engagement contour and the rear engagement contour of the rear engagement arrangement can also form bearing components.

[0015] The housing swivel bearing, for example, incorporates a swivel bearing and a swivel axis. The swivel axis preferably runs within the interior of the suction cup housing. This allows, for instance, the housing walls of the upper and lower housing sections, located near the swivel axis, to be unloaded or less loaded when the upper housing section swivels away from the lower housing section.

[0016] The clamping path preferably begins when at least two components of the clamping device, for example the locking element and the locking contour, come into contact with each other. The upper housing part may initially be freely movable relative to the lower housing part, or movable along a pivot path, in which case the clamping device is not yet active. Only when two or more components of the clamping device are in contact with each other does the actual clamping path begin.

[0017] The clamping path preferably extends from a point of contact between at least two components of the clamping device until all components of the clamping device have reached the clamping position. The clamping path ends when the clamping device, and in particular all its components, have completely reached the clamping position.

[0018] The fixing path can be, for example, essentially linear or even completely linear. This allows the operator to attach the upper housing part to the lower housing part along a straight path. For example, this allows locking mechanisms of the fixing device, located on opposite sides of the suction cup housing, to be actuated simultaneously to move the device into the fixing position.

[0019] The fixing track can also, for example, have at least one arc segment or curved section. In one embodiment of the invention, the upper housing part can be pivoted or tilted relative to the lower housing part.

[0020] Furthermore, it is advantageous if the upper housing part can be attached to the lower housing part. However, if the upper housing part rests on a surface, the lower housing part can also be attached to the upper housing part.

[0021] The fixing device can comprise several, for example two or more, locking arrangements. One embodiment of the invention provides that the upper housing part can be freely locked to the lower housing part such that, for example, a first locking arrangement and then a second locking arrangement can be engaged during a first insertion movement, or during a second insertion movement, which for example includes a pivoting movement, the second locking arrangement and then the first locking arrangement can be engaged.

[0022] The locking element preferably has a release contour which, in an end section of the fixing path or assembly movement, particularly when the upper housing part is placed or fully placed onto the lower housing part, abuts a release abutment contour before reaching the closed position. This movement of the upper housing part towards the lower housing part in the direction of the closed position moves the locking element into the release position. The release contour releases the locking element for movement into the fixing position when portions of the upper and lower housing parts in the area of ​​the locking arrangement are in a position relative to each other corresponding to the closed position. Thus, the release contour ensures that the locking element is initially moved towards the release position at an end section of the assembly movement, allowing it to move past the locking contour.However, if the parts of the upper and lower housing sections in the area of ​​the locking arrangement have a position relative to each other corresponding to the closed position, i.e., if edge sections of the lower and upper housing sections rest on or touch each other, the release contour releases the locking element for adjustment into the fixing position, so that fixing is possible.

[0023] To adjust the clamping device to the release position, handles or operating surfaces, as described below, may be provided on components of the clamping device. In addition to or as an alternative to these, however, the operating concept described below is also provided: It is advantageously provided that adjusting the locking device to the release position includes a disassembly movement of the upper housing part relative to the lower housing part along a release path from the locking position to the release position. The release path can begin, for example, when the detent element of the at least one detent arrangement is disengaged from the detent contour and the upper housing part is thereby movable relative to the lower housing part, whereby at least two components of the locking device are still engaged, so that the locking device has not yet fully reached the release position.

[0024] The fixing track and the release track are traversed in opposite directions, whereby the paths of the release track and the fixing track can be at least partially the same when the lower and upper parts of the housing are at the same distances.

[0025] The release track and the fixing track can have the same paths, for example, both being straight tracks or plug-in tracks.

[0026] The release path can be a different path than the fixation path. Therefore, the release path and the fixation path can have different orientations.

[0027] For example, starting from the closed position, the release track has a corresponding arcuate section relative to each other, followed by a straight or essentially straight section. This allows, for instance, the upper housing part to be pivoted away from the lower housing part by a certain amount, namely the arcuate section, after which a straight movement is readily possible, but an arcuate movement may also be possible. Therefore, starting from the closed position, the release track can initially have an arcuate section, to which at least one straight and / or another arcuate section is then connected.The further arc-shaped section preferably has a larger radius than the arc section that is traversed directly from the closed position.

[0028] The release path preferably ends, starting from the closed position, when the locking device no longer impedes the removal of the upper housing part from the lower housing part. It is also possible that the release path ends, starting from the closed position, when all components of the locking device are disengaged or are engaged only in a way that no longer prevents the removal of the upper housing part from the lower housing part. Thus, it is possible that the components of the locking device, for example, detent contours, are still in contact with each other, but are no longer engaged in a way that hinders or prevents the removal of the upper housing part from the lower housing part. In this case, the contact is not a problem.

[0029] The fixing path preferably extends from the release position of the fixing device to its fixing position.

[0030] The release path preferably extends from the fixing position to the release position of the fixing device.

[0031] Advantageously, the fixing device comprises a rear gripping arrangement with a rear gripping contour and an engagement contour, wherein the engagement contour engages the rear gripping contour in the fixing position. The rear gripping contour and the engagement contour are provided in addition to the at least one detent arrangement. The fixing device thus comprises the rear gripping contour, the engagement contour, and the at least one detent arrangement. For example, during the assembly movement, the engagement contour and the rear gripping contour can be brought into engagement with each other, and subsequently the at least one detent arrangement can be brought into a detent engagement with each other until the fixing device reaches its fixing position.

[0032] The engagement contour and / or the rear engagement contour can be fixed and essentially non-springy or non-elastic contours, for example, designed as hook contours. The engagement contour and the rear engagement contour can be fixedly arranged on the upper and lower housing parts, with one of the rear engagement contours being located on the upper housing part and the other on the lower housing part. For example, the engagement contour is located on the upper housing part and the rear engagement contour on the lower housing part. Alternatively, the engagement contour can be located on the lower housing part and the rear engagement contour on the upper housing part.

[0033] However, it is also possible that the rear gripping arrangement forms a second locking arrangement. For example, the engagement contour and / or the rear gripping contour is resiliently flexible. One of the engagement contours or rear gripping contours then forms the locking element of the second locking arrangement, and the other of the engagement contour or rear gripping contour forms the locking contour of the second locking arrangement. The at least one locking arrangement comprises at least a first locking arrangement and a second locking arrangement formed by the hook arrangement. The second locking arrangement forming the rear gripping arrangement can, for example, be moved into the locking position and / or the release position by a insertion movement, in particular a linear insertion movement, of the upper and lower housing parts relative to each other.

[0034] The at least one locking arrangement and the rear gripping arrangement are preferably arranged on sides of the suction cup housing that are at an angle to each other or opposite each other. This allows, for example, the locking arrangement to be disengaged while the rear gripping arrangement remains engaged, thus enabling, for example, the upper and lower housing parts to pivot relative to each other.

[0035] The rear gripping arrangement can form a pivot bearing for pivoting the upper housing part relative to the lower housing part. The pivot bearing is engaged and / or active, for example, when the upper housing part is moved relative to the lower housing part within the release path and / or the locking path, and / or when the locking device is in an intermediate position between the locking position and the release position.

[0036] Disassembly aids may also be provided in the direction of loosening or adjusting towards the open position.

[0037] For example, the detent element of at least one detent arrangement has a release contour which, starting from a closed position in an initial section of the release path, abuts a release abutment contour during a disassembly movement opposite to the assembly movement and deflects the detent element into the release position along an adjustment path, for example, a pivoting adjustment path. An adjustment movement of the detent element into the release position based on the release contour reinforces the disassembly movement, thus facilitating the release of the detent element from the detent contour. In other words, the release contour, in conjunction with the release abutment contour, supports and increases the release movement of the detent element from the detent contour. The detent element, for example,Basically, the movement of the lower housing part relative to the lower housing part disengages it from the detent contour, with the release contour and the release abutment contour also acting to release the detent. Thus, for example, the pivot path of the upper housing part when detaching from the lower housing part or when moving into the open position can be shorter due to the release contour and the release abutment contour than a pivot path that would exist without the involvement of the release contour and the release abutment contour.

[0038] The aforementioned design is particularly advantageous when it is provided for in the second locking arrangement or the locking arrangement formed by the rear gripping arrangement.

[0039] Various measures, including combinations thereof, can be used to provide spring tension to the locking element. For example, the locking element may be held in the fixed position by a separate spring. Alternatively, the locking element may be resiliently mounted to a section of the suction cup housing that holds the locking element, or resiliently connected to such a section. For instance, a spring section, made of elastic plastic, rubber, or a similar material, may be provided to connect the locking element to the section of the suction cup housing that holds it. Preferably, the locking element is integrally connected to or formed by the section of the suction cup housing.

[0040] The at least one locking arrangement preferably comprises a hook arrangement in which the locking element includes or is formed by a hook element, and the locking contour is a hook contour with which the hook element can be engaged. In an engaged position, the hook element and the hook contour are in contact with each other to hold the upper housing part to the lower housing part in a tensile-resistant manner. Thus, in the fixing position of the fixing device, the hook arrangement ensures that the upper housing part is tensile-resistant and hooked to the lower housing part with respect to the fixing track.

[0041] The upper and lower housing parts are connected to each other in a tensile-resistant manner with respect to the release track by means of the interlocking connection provided by the at least one hook arrangement or the multiple hook arrangements, until the at least one locking arrangement is released by means of a manual actuation.

[0042] It is advantageous if the fixing device comprises exactly two or at least two locking arrangements, particularly those configured as hook arrangements. For example, the fixing device can comprise a locking arrangement and a hook arrangement. It is preferred if the fixing device comprises exactly two or at least two hook arrangements.

[0043] However, it is also possible that the interlocking arrangement, which includes fixed or non-springy or non-elastic contours, is designed as a hook arrangement.

[0044] The hook element and the hook contour are preferably biased towards each other in the engaged position by a spring arrangement, either to reinforce the engagement of the hook element with the hook contour. The spring arrangement can, for example, be formed by a seal or sealing arrangement located between the upper and lower housing parts. The sealing arrangement can be located, for example, on an outer circumference or outer circumferential wall of the suction cup housing. It is possible for the seal to be located on only one of the upper or lower housing parts. Advantageously, the seal or sealing arrangement is located on an end face or a narrow side of a circumferential wall of the suction cup housing. The narrow side or circumferential wall of the other upper and lower housing parts can then abut the seal in the sealing seat.

[0045] The locking element, for example the hook element, preferably has a handle contour or handle with which the locking element, i.e., the hook element, can be moved from the locking position to the release position. For example, a base body of the hook element, from which a hook projection protrudes, can have a handle contour. A wall, gripping surface, or the like of the hook element or locking element oriented towards the outside of the suction cup housing can also serve as a handle contour or handle.

[0046] In principle, it is possible for several, for example at least two, locking arrangements or components of the fixing device to have a handle contour or a handle. For example, each of the locking arrangements that has a handle contour or a handle, or that can be manually operated, can then be moved from the fixed position to the released position by a separate manual operation.

[0047] However, a preferred concept provides that only a single locking arrangement, or one of the locking arrangements, has a handle contour or handle, or is designed and configured for manual operation. When this locking arrangement is then moved into the release position, the upper housing part can, for example, be moved along the release path to fully move the fixing device into the release position. With this design, no manual operation of another locking arrangement, another hook arrangement, or the rear gripping arrangement is required, apart from a relative movement of the upper and lower housing parts away from each other.

[0048] An advantageous aspect of the invention provides that the fixing device can be moved from the fixed position to the released position by actuating a single handle or handle assembly and by the additional disassembly movement of the upper and lower housing parts relative to each other. A purely relative movement of the upper and lower housing parts away from each other to release them, for example by a sudden release movement or the like, is not provided for in this preferred embodiment.

[0049] Advantageously, the latching arrangement features a locking device for securing the latching element, for example, the hook element, in a disengaged position relative to the latching contour, for example, the hook contour. The locking device comprises a locking contour and a locking counter-contour with which the locking contour engages in a locked position of the locking device and holds the latching element in the disengaged position. Thus, the latching arrangement can be disengaged, so to speak, with the locking device maintaining this disengagement or disengaged position. The aforementioned handle contour or handle preferably serves to actuate the latching arrangement toward the release position or disengagement position relative to the latching contour. This preferably also allows the locking device to be actuated simultaneously, i.e., that by releasing the latch, the locking device simultaneously falls or moves into the locked position.The operator can then separate the upper and lower housing parts by grasping either the upper or lower housing part, or both, without having to operate the handle. The locking device ensures that, for example, a single actuation of the handle contour or the handle itself can disengage the locking mechanism, and it remains in this position until the locking device is fully released by moving the upper and lower housing parts along the release path.

[0050] The locking device makes it possible to enable, by means of a so-called pre-release or unlocking of the fixing device, for example at least one detent arrangement, so that the fixing device can be completely adjusted into the release position by a subsequent relative movement of the upper and lower housing parts to each other, in particular exclusively by such a relative movement.

[0051] Advantageously, the locking device is designed to initiate and / or assist the movement of the upper and lower housing parts away from each other. When the locking device is moved into the locked position, for example, the locking contour and the locking counter-contour can create a leverage or force effect that moves the upper and lower housing parts away from each other.

[0052] The locking device has both a locking position and an inactive position, in which it does not prevent the locking device from being moved from the release position to the locking position. In the inactive position, the locking contour and the locking counter-contour are disengaged. In the locking position, the locking device is in the inactive position.

[0053] The locking device is advantageously designed such that the fixing device can be adjusted from the locked position to the fixed position by the assembly movement of the upper housing part relative to the lower housing part along the assembly path, particularly from the released position. Advantageously, the locking contour and the locking counter-contour can be disengaged by the assembly movement of the upper housing part relative to the lower housing part, so that the locking device leaves the locked position and the locking element can engage with the locking contour.

[0054] Advantageously, the at least one locking arrangement comprises two locking arrangements, wherein the locking contour and the locking element of one of the locking arrangements are located in an interior space of the suction cup housing, and the locking contour and the locking element of the other locking arrangement are located on an exterior surface of the suction cup housing. At least one of the locking arrangements can be configured as a hook arrangement.

[0055] Preferably, the suction device has two hook assemblies. For example, one hook assembly can comprise a fixed hook element and a fixed hook contour, one of which is located on the upper housing part and the other on the lower housing part. However, it is also possible that both hook assemblies are designed as snap-fit ​​arrangements or that the at least one snap-fit ​​arrangement comprises both hook assemblies.

[0056] Preferably, the hook projections of both hook elements of the two hook assemblies project in the same direction from a base body of the respective hook element. The two hook elements are thus, for example, arranged on opposite sides of the suction cup housing and both point in the same direction, or their hook projections both point in the same direction, for example towards a front or a back of the suction cup housing.

[0057] It is also possible that the hook contour and hook projection of one hook assembly are located inside the vacuum cleaner housing when the housing is in its closed position, and the hook contour and hook projection of the other hook assembly are located on an outside or outer circumference of the vacuum cleaner housing. Thus, when the vacuum cleaner housing is closed, one hook assembly is located inside the housing, while the other hook assembly is at least partially located on an outside of the housing. The hook assembly located inside the vacuum cleaner housing is preferably located in the area of ​​the dust collection chamber, particularly in the area of ​​a free narrow side of a wall of the vacuum cleaner housing that defines or surrounds the dust collection chamber.

[0058] The components of the fixing device, for example the at least one locking arrangement or all locking arrangements and / or the interlocking arrangement and / or the at least one hook arrangement or all hook arrangements, are preferably arranged on opposing outer walls or side walls of the housing upper part and the housing lower part, in particular in the area of ​​narrow sides or end faces of the outer walls or side walls.

[0059] At least one hook surface is preferably inclined in accordance with the inclination direction or inclination orientation of a hook surface of a barb.

[0060] Advantageously, at least one hook surface, or the hook surfaces of the hook arrangement, are inclined to reinforce the interlocking of each hook arrangement with respect to a pulling direction that runs opposite to the insertion direction of the upper housing part towards the lower housing part. Advantageously, both hook surfaces of corresponding hook surfaces are inclined in this way. However, it is sufficient if only one of the hook surfaces has such an inclination.

[0061] Each hook surface, which acts to reinforce the hooking, is oriented, for example, in such a way that it is inclined obliquely towards a depression that runs parallel to or is oriented in the direction of the pull, and / or is inclined in such a way that the hook surface cannot slide on the opposite hook surface when subjected to a tensile load in the direction of the pull.

[0062] In the case of at least one latching arrangement and / or at least one hook arrangement, it is advantageous if the latching contour or hook contour is arranged on the lower housing part and the associated latching element or hook element is arranged on the upper housing part. However, the reverse configuration is also possible, whereby the hook element or latching element is arranged on the lower housing part and the fixed latching contour or hook contour is arranged on the upper housing part. A combination is also possible, for example, where in one latching arrangement or hook arrangement a fixed latching contour or hook contour is arranged on the upper housing part, and in another latching arrangement or hook arrangement the fixed latching contour or hook contour is arranged on the lower housing part.

[0063] The locking element, for example, the at least one hook element, and / or the locking contour, in particular the hook contour, is or are preferably designed as a ribbed structure or form a ribbed structure. The rear gripping contour and / or the engagement contour can also be designed as a ribbed structure or form a ribbed structure. In the ribbed structure, several ribs, for example, at least two ribs, are arranged next to each other, for example, along a row direction or row axis. The row direction or row axis preferably runs approximately horizontally when the suction device is in its operating position intended for suction operation on a surface. The ribs are arranged next to each other at preferably equal intervals. At least two ribs of the respective ribbed structure are designed for locking and / or hooking or have form-fitting contours suitable for locking or hooking.

[0064] The vacuum cleaner housing contains a dust collection chamber for collecting dust and a suction unit for generating a suction flow. Preferably, the dust collection chamber is located in the lower part of the housing. The suction unit, for example a vacuum motor with a suction turbine, is preferably located in the upper part of the housing.

[0065] The vacuum cleaner is preferably a workshop vacuum cleaner or construction site vacuum cleaner, or a vacuum cleaner intended for commercial use.

[0066] The suction device is preferably designed for operation together with a machine tool, in particular a hand-held machine tool, for example for the extraction of dusts that arise during the operation of the hand-held machine tool.

[0067] Advantageously, the vacuum cleaner has a cleaning device for cleaning the main filter of the vacuum cleaner of dust, wherein the main filter is arranged between the dust collection chamber and the suction unit. The cleaning device has, for example, an external air valve for supplying the main filter with an external airflow that is directed against the direction of the suction flow, so that dust is cleaned from the main filter, for example, into the dust collection chamber.

[0068] An embodiment of the invention is explained below with reference to the drawing. The drawing shows: Fig. 1. A perspective oblique view of a suction device from a frontal angle together with a hand-held power tool, Fig. 2 the suction device according to Fig. 1 from a rear angle, Fig. 3 the suction device according to Fig. 2, wherein a housing upper part is partially pivoted away from a housing lower part of the suction device, Fig. 4 the view according to Fig. 3, however with the upper part of the housing completely detached from the lower part of the housing, Fig. 5 a partial cut through the suction device according to Fig. 2, approximately corresponding to a line AA in Fig. 2, wherein a fixing device for fixing the upper housing part to the lower housing part in its fixing position is shown, Fig. 6 a view accordingly Fig. 5, wherein the fixing device is partially adjusted towards its release position, Fig. 7 a locking arrangement of the fixing device, approximately corresponding to detail D1 in Fig. 5, Fig. 8 the view accordingly approximately Fig. 7, wherein a safety device is in an inactive position, Fig. 9 the view accordingly Fig. 7 and Fig. 8, wherein the locking device is moved into a locking position and the locking arrangement is fully disengaged, Fig. 10 the view approximately corresponding to the Fig. 7, Fig. 8 and Fig. 9, with the upper part of the housing already swung away from the lower part of the housing, Fig. 11 an external view of the rack arrangement according to Fig. 7-10, roughly corresponding to detail D3 in Fig. 2, Fig. 12 a perspective oblique view of grid contours of the grid arrangement according to Fig. 11, which are arranged on the lower part of the housing, as well as a locking element of the locking arrangement, Fig. 13 a rear gripping arrangement of the fixing device of the suction device, such as detail D4 in Fig. 6 with a release contour that supports the release of the rear gripping arrangement, Fig. 14 a perspective partial section through the rear gripping arrangement according to Fig. 13, Fig. 15 a perspective oblique view of the engagement contours of the rear engagement arrangement according to Fig. 14, and Fig. 16 a perspective oblique view of the gripping contour of the gripping arrangement according to Fig. 14 and Fig. 15.

[0069] A suction device 10 has a suction housing 11. The suction device 10 is, for example, a vacuum cleaner for a construction site, for use in a workshop, or the like.

[0070] The suction device 10 is preferably designed and / or intended for the extraction of dust generated during the operation of hand-held power tools, in particular grinding machines, saws or the like.

[0071] The suction housing 11 has a lower housing part 30 and a upper housing part 40 that covers the lower housing part 30.

[0072] A dust collection chamber 15 is arranged in the vacuum cleaner housing 11, in particular in the lower housing part 30, for collecting dust. Dust can be collected directly in the dust collection chamber 15 or in a filter bag, which can optionally be arranged in the dust collection chamber 15.

[0073] To generate a suction flow STR, a suction unit 12 is provided, which is arranged in the suction housing 11, in particular the upper part of the housing 50.

[0074] A filter 16 is arranged between the dust collection chamber 15 and the suction unit 12, preferably on a filter holder on the upper part of the housing 40.

[0075] The suction flow STR can be drawn into the dust collection chamber 14 via a suction inlet 13. The suction inlet 13 is, for example, located on the upper part of the housing 30 and is connected to the dust collection chamber 15 in terms of airflow. A suction hose 14 can optionally be connected to the suction inlet 13.

[0076] The suction hose 14 is also advantageously connected to a hand-held power tool H, for example a sawing machine, in order to extract dust, particles or the like that arise during its operation by means of the suction device 10.

[0077] The vacuum cleaner housing 11 is further equipped with operating elements 17, for example buttons, in particular membrane buttons, a socket for inserting a connector plug or cable for powering a hand-held power tool, e.g., the hand-held power tool H, or the like. The vacuum cleaner 10 can be switched on and off, for example, using the operating elements 17.

[0078] The handling of the vacuum unit 10 is facilitated by rollers 18 that can roll on a surface. The rollers 18 are arranged on a bottom 20 of the vacuum unit 10 or the vacuum housing 11. Longitudinal sides 21 of the vacuum housing 11, as well as a front and a back 24, extend between the bottom 20 and a top 24 of the vacuum housing 11.

[0079] A cover 25 is preferably arranged on the upper surface 24. The cover 25 serves, for example, to cover a receptacle 44 which is arranged on the upper part of the housing 40 and in which, for example, the suction hose 14 or a power cord for the electrical supply of the suction device 10 can be stored.

[0080] Accordingly, the vacuum cleaner 10 can be a vacuum cleaner operated via an electrical power supply network, although a variant with an electrical energy storage device is also conceivable. For example, the vacuum cleaner 10 can have a connection for one or more electrical energy storage devices, in particular battery packs.

[0081] The lid 25 can be closed by means of a locking device 26, so that the lid 25 closes the receptacle 44.

[0082] Preferably a carrying handle 19 is arranged on the top 24 of the suction device 10, with which the suction device can be grasped and carried.

[0083] The upper housing part 40 can be removed from the lower housing part 30 or arranged on the lower housing part 30, so that the upper housing part 40 can be adjusted between a closed position S which closes the lower housing part 30 and an open position O which releases it.

[0084] In the present case, the upper housing part 40 is completely removable from the lower housing part 30 and can therefore, for example, be placed next to the lower housing part 30. However, it is also possible that the upper housing part is movably mounted on the lower housing part 30 by means of a housing bearing, for example a housing swivel bearing or hinge, so that it can be pivoted away from or towards the lower housing part 30.

[0085] The upper housing part 40 and the lower housing part together form the suction housing 11.

[0086] The lower housing section, for example, has side walls 31, a front wall 32, and a rear wall 33, which extend from a bottom wall 34 and together form a perimeter wall of the lower housing section 30. The walls 31, 32, and 33, as well as the bottom wall 34, define an interior space 35, which wholly or partially provides the dust collection chamber 15.

[0087] A sealing contour 36 can be arranged on the end faces of the side walls 31, as well as the front wall 32 and the rear wall 33. This sealing contour interacts with a seal 46 on the upper housing part to bring the lower housing part 30 and the upper housing part 40 into a tightly closed position. The seal 46 is, for example, received in a seal receptacle 46A.

[0088] The upper housing part has side walls 41 that connect a front wall 42 and a rear wall 43, so that the side walls 41, the front wall 42, and the rear wall 43 together form a circumferential wall of the upper housing part 40. For example, the aforementioned walls 41, 42, 43 extend from a bottom wall of the receptacle 44 (not visible in the drawing) towards the lower housing part 30 when the upper housing part 40 is attached to the lower housing part 30.

[0089] The side walls 31, 41, the front walls 32, 42 and the rear walls 33, 43 are aligned with each other when the upper housing part 40 is in the closed position S, i.e. the lower housing part 30 and the upper housing part 40 are attached to each other.

[0090] A fixing device 50 serves to fix the upper housing part 40 and the lower housing part 30 to one another. The fixing device 50 comprises a rear gripping arrangement 51 with a rear gripping contour 53, with which an engagement contour 52 can be brought into engagement. This requires a movement of the upper housing part 40 towards the lower housing part 30 (or vice versa) along a fixing path FB, whereby no additional operation is necessary. Thus, the upper housing part 40 and the lower housing part 30 can be brought into engagement by means of the fixing device 40 solely by the movement of the two parts 30 and 40 relative to each other. In this process, the upper housing part 40 is moved relative to the lower housing part 30 along a fixing path FB. The fixing path FB is, for example, a straight path or a slotted path.

[0091] To release the fixing device 30, i.e., to move it from its fixing position F, in which the upper housing part 40 is fixed to the lower housing part 30, to a release position L, in which the fixing device 40 allows free movement of the upper housing part 40 relative to the lower housing part 30, for example, to place the upper housing part 40 next to the lower housing part 30, only a handle 54 located on the rear 23 of the suction device 10 needs to be actuated. The upper housing part 40 is then moved along an arc-shaped path BLB until, at the end of path BLB, a straight path GLB follows, in which the upper housing part 40 and the lower housing part 30 are moved relative to each other along a linear path, in particular the upper housing part 40 is moved along a linear path relative to the lower housing part 30.The track sections BLB and GLB belong to a release track LB, along which the upper housing part 40 is moved relative to the lower housing part 30 (or the lower housing part 30 is moved to the upper housing part 40) in order to move the fixing device 50 from the fixing position F to the release position L.

[0092] The rear gripping arrangement 51 is located on the front 22 of the suction cup housing 11, while the handle 54 is located on the rear 23.

[0093] The rear gripping arrangement 51 and the handle 54 belong to the latching arrangements and hook arrangements explained below.

[0094] The fixing device 50 comprises a locking arrangement 60, which is arranged on the rear 23 of the suction device 10, and a second locking arrangement 80, which is arranged on the front 22. The locking arrangement 60 can be actuated by means of the handle 54. The locking arrangement 80 can be actuated by adjusting the upper housing part 40 relative to the lower housing part 30 and comprises or is formed by the rear gripping arrangement 51.

[0095] The locking arrangements 60 and 80 can be brought into a locking position or fixing position by a simple insertion movement of the upper housing part 40 relative to the lower housing part 30 along the fixing track FB, which locks the upper housing part 40 to the lower housing part 30.

[0096] The detent arrangements 60, 80 comprise detent elements 61, 81 which can be brought into engagement with detent contours 62 and 82, respectively. While the detent elements 61, 81 are resiliently arranged on the upper housing part 40, the detent contours 62, 82 are fixed contours arranged on the lower housing part 30.

[0097] Both locking arrangements 60, 80 are designed as hook arrangements or include hook arrangements, namely hook arrangements 63 and 83.

[0098] The hook assemblies 63, 83 comprise hook elements 64, 84 which, in an engagement position EH, are engaged with hook contours 70 and 90 respectively, and hook the upper housing part 40 with the lower housing part 30. In a release position FG, however, the hook assemblies 63, 83 are disengaged, i.e., the hook elements 64, 84 are not engaged with the hook contours 70 and 90 respectively.

[0099] It is provided that the locking arrangement 60 or hook arrangement 63 is first moved from the hook position EH to the release position FG using the handle 54, whereby the hook arrangement 83 still remains in the hook position EH.

[0100] Then, by a pivoting movement of the upper housing part 40 relative to the lower housing part 30 along the arcuate track section BLB of the release track LB, the hook arrangement 83 is also disengaged, i.e., moved into the release position FG, so that the upper housing part 40 is subsequently released from the lower housing part 30 and can be removed from the lower housing part 30 along the, for example, straight or only slightly curved track section GLB.

[0101] The hook element 64 has a base body or base leg 65 from which a hook projection 66 extends. The hook projection 66 has a hook surface 66A, which can be brought into engagement with a hook surface 71A of a hook projection 71, which provides the hook contour 70. Thus, the hook contour 70 is essentially the hook surface 71A.

[0102] The locking element 61 or hook element 64 is pivotally mounted on the upper housing part 40 by means of a pivot bearing 67 between the engagement position EH and the release position FG. For example, the hook element 64 or locking element 61 has bearing projections 67A that engage in bearing receptacles 67B of the upper housing part 40.

[0103] The pivot bearing 67 extends on one side into the base leg 65 and on the other side into a support leg 68. The support leg 68 is acted upon by a spring 69. The spring 69 acts upon the detent element 61 in the detent position and the hook element 64 in the hook position EH.

[0104] Preferably, the locking arrangement 60 comprises two hook projections 66, which are spaced apart from each other in the direction of a pivot axis of the pivot bearing 67. Accordingly, two hook projections 71 are associated with the hook elements 64.

[0105] One preferred concept provides that the hook elements 64, in particular the hook projections 66, comprise several ribs 66B.

[0106] While the handle 54 is required to release the hook assembly 63 or the locking assembly 60, no manual operation is necessary to actuate the locking assembly 60 or the hook assembly 63 from the release position FG to the hook position EH or towards the locking position. For this purpose, a release contour 72 is provided on the hook element 64 and a release abutment contour 73 on the hook contour 70. When the upper housing part 40 is moved towards the closed position S and thus towards the locking device 50, these contours slide along each other from the release position L to the locking position F, deflecting the hook element 64 towards the release position FG. This allows the hook projection 65 to pass the hook projection 71 and, once released by the release contour 72 and the release abutment contour 73, engages the hook position EH due to the force exerted by the spring 69.Thus, the locking arrangement 60 or hook arrangement 63 automatically engages when the upper housing part 40 is attached to the lower housing part 30.

[0107] The release contour 72 and the hook surface 66A are arranged on opposite sides of the hook projection 66. The release abutment contour 73 and the hook surface 71A are arranged on opposite sides of the hook projection 71.

[0108] Both hook assemblies 63, 83 are spring-loaded into the engaged position EH, and thus both detent assemblies 60, 80 are spring-loaded in the direction of a detent position RS, in which the detent elements 61, 81 are engaged with their associated detent contours 62, 82. The engaged position EH corresponds to the detent position RS. The release position FG corresponds to a detent release position RF.

[0109] A locking device 75, arranged on the detent assembly 60 or the hook assembly 63, facilitates convenient adjustment of the upper housing part 40 away from the lower housing part 30 and / or convenient adjustment of the locking device 50 from the locking position F towards the release position L. Due to the spring 60, which acts on the detent element 61 in the direction of the detent position or on the hook element 64 in the direction of the hook position EH, the operator must load the detent assembly 60 or hook assembly 63 by continuously actuating the handle 54 in the direction of the release position FG so that the hook projection 66 moves past the hook projection 71 or the detent element 61 past the detent contour 62. The operator must simultaneously actuate the handle 54 and move the upper housing part 40 relative to the lower housing part 30.

[0110] The locking device 75 secures the latching assembly 60, and thus also the hook assembly 63, at least temporarily in the disengaged or release position FG. The locking device 75 can be actuated by operating the handle 54. The locking device 75 comprises a locking contour 76, which is arranged on the latching element 61 or hook element 64, and which can be brought into engagement with a locking counter contour 77 on the latching contour 62 or the hook contour 70, whereby the locking device 75 then assumes its locking position ST. In the locking position ST, the latching element 61 and the latching contour 62, or the hook element 64 and the hook contour 70, are disengaged. For example, the hook surfaces 66A and 71A are then arranged next to each other and no longer rest against one another.

[0111] The locking contour 76 includes, for example, a locking projection 76A, which is arranged on the locking element 61 or hook element 64 and can be brought into engagement with a receptacle 77A of the locking counter contour 77 by actuating the locking element 61 in the direction of the unlocked position or the hook element 64 in the direction of the release position FG. The locking projection 76A engages in the receptacle 77A, so that the locking element 61 is held in the unlocked position or the hook element 64 is held in the release position FG. The upper housing part 40 can remain on the lower housing part 30 or continue in the closed position S. The locking arrangement 80 also remains in its locked position.

[0112] It is also possible that the locking contour 76, when engaged with the locking counter contour 77, exerts a force or leverage force on the upper housing part 40 in a direction away from the lower housing part 30.

[0113] For example, by actuating or pivoting the handle 54 into a position associated with the release position L, the locking device 75 can be moved into the locking position ST and / or the upper housing part 40 can be moved in a direction away from the lower housing part 30.

[0114] An operator can then grasp the upper housing part 40 at any point to move it further away from the lower housing part 30. For example, the operator can grasp or grip the handle 54, or any other gripping portion of the upper housing part 40, such as a gripping portion 27 next to the handle 54. The gripping portion 27 can, for example, be designed in the form of a collar or a projection. The gripping portion 27 can, for example, be formed by or located on the rear wall 43.

[0115] In addition to the locking counter contour 77, a release receptacle 78 is arranged, for example, a recess or indentation. The locking contour 76, in particular the locking projection 76A, engages in the release receptacle 78 in an inactive position, i.e., when the locking device 75 has no locking function, or is arranged in the release receptacle 78, so that the locking contour 76 cannot exert a force in the sense of holding the hook element 64 in the release position FG. The release receptacle 78 is associated with the hook position EH, i.e., in the hook position EH, the locking device 75 is in an inactive position.

[0116] However, the locking arrangement 80 on the front 22 of the suction device 10 and thus the hook arrangement 83 does not require manual operation in the form of a direct actuation of components of the locking arrangement 80 or hook arrangement 83, but can be disengaged by simply adjusting the upper housing part 40 and the lower housing part 30 away from each other.

[0117] It should be mentioned here that in an embodiment not shown, and thus a variant of the gripping arrangement 51, it could be formed from fixed, non-moving components or parts of the lower housing part 30 and the upper housing part 40. For example, the gripping contour 53 could be fixedly attached to the lower housing part 30 and the engagement contour 52 fixedly attached to the upper housing part 40. In this case, too, it is possible, for example by means of a pivoting movement, to bring the engagement contour 52 out of engagement with the gripping contour 53 or into engagement with the gripping contour 53.

[0118] In the specific embodiment of the suction device 10, however, a spring-loaded hook arrangement 83 is provided. The gripping contour 52 is provided by a hook element 84 of the hook arrangement 83, and the rear gripping contour 53 by a hook contour 90.

[0119] The hook element 84 comprises a base body or base leg 85, from which a hook projection 86 protrudes. The hook contour 90 comprises a hook projection 91 with which the hook projection 86 can be engaged. Then, a hook surface 86A of the hook projection 86 engages with a hook surface 91A of the hook projection 91, while in the release position FG they are disengaged.

[0120] The hook element 84 is pivotally mounted with respect to the upper housing part 40 by means of a pivot bearing 87, the pivot bearing 87 being formed by an elastic linkage of the hook element 84 to the upper housing part 40. The pivot bearing 87 comprises a support leg 84, from which the base leg 85 projects as a spring leg 89. A transition area of ​​the support leg 88 to the spring leg 89 or base leg 85 is resiliently flexible, thus providing a resilient mounting of the hook element 84 with respect to the upper housing part 40.

[0121] Another spring-elastic mounting can be achieved by the support leg 88 not being rigidly attached to, for example, a wall surface of the housing upper part 40, but rather by advantageously connecting flexible sections to a rigid structure of the housing upper part 40 in an elastic and flexible manner. For example, further sections 88B, 88C, and 88D, as well as other wall sections or legs not described in detail here, can be connected to the support leg 88, being angular to one another and / or resilient relative to one another. Section 88B, for example, can also have a spring-like or flexible property overall, so that it can contribute to the springing of the hook element 84 from the engaged position EH to the release position FG and vice versa.

[0122] Thus, the hook element 84 is springily yielding in the direction of the hook position EH.

[0123] When the upper housing part 40 and the lower housing part 30 are moved towards each other during a plugging movement, a release contour 92 of the hook element 84 slides past a release abutment contour 93 of the hook contour 90. When the hook projections 86 and 91 have moved past each other, the spring leg 89 or the spring assembly, which loads the hook element 84 in the direction of the hooking position EH, ensures that the hook element 84 engages behind the hook contour 90, thus engaging a hook surface 86A of the hook projection 86 with a hook surface 91 of the hook projection 91.

[0124] The release contour 92 and the hook surface 86A are arranged on opposite sides of the hook projection 86. The release abutment contour 93 and the hook surface 91A are arranged on opposite sides of the hook projection 91.

[0125] The fastening or holding of the hook element 84 on the hook projection 91 is further reinforced by the fact that, for example, the hook element 84 and thus the locking element 81 have ribs 81B which are arranged next to each other and form a rib structure.

[0126] The hook contour 90 also has several adjacent ribs 90B, which together form a respective hook contour 90. It should be noted that the hook arrangement 83 has two pairs of hook element 84 and hook contour 90, which are arranged next to each other at a distance, for example, with one pair being located closer to one longitudinal side 21 and the other pairing located closer to the opposite longitudinal side 21 of the suction device 10. A distance can be provided between the pairs of hook element 84 and hook contour 90.

[0127] Each pairing of hook element 84 and hook contour 90 is assigned a release contour 95. The release contour 95 supports the release of the respective hook arrangement 83 from the hook position EH in the direction of the release position FG, whereby this release is triggered or supported by a pivoting movement of the upper housing part 40 relative to the lower housing part 30.

[0128] For example, a respective release contour 95 projects towards the hook element 84, in particular its base leg 85, and engages with a release abutment contour 97, e.g., on the base leg 85, which, as explained, is a spring leg 89, by actuating the base leg 85 in the direction of the release position FG of the hook arrangement 83, through a pivoting movement of the upper housing part 40 to the lower housing part 30 in the direction of the release position FG.

[0129] The release contour 95 includes release projections 96. For example, a release projection 95 is arranged next to an arrangement of several hook contour ribs 90B, such that each hook element 84 is actuated by a release projection 96 when the suction cup housing 11 is opened, i.e., moved from the closed position S towards the release position. The hook element 84 undergoes an additional pivoting movement towards the release position FG by the release contour 95, so that the arcuate path section BLB is short, at least shorter than in a situation where the hook element 84 is not actuated by the release contour 95 when the upper housing part 40 is removed from the lower housing part 30.

[0130] The release contour 95 can also include several ribs 95B.

[0131] The release contour 95 forms a bearing component 201 and the release-abutment contour 97 forms a bearing component 202 of a swivel bearing 200, with which the upper housing part 40 can be pivoted away from the lower housing part 30 about a swivel axis SG. Convenient operation is possible using the handle 54; that is, an operator can grasp the handle 54 and thereby not only release the detent arrangement 60 and / or move the locking device 75 into the locking position ST, but also simultaneously pivot the upper housing part 40 away from the lower housing part 30 about the swivel axis SG in order to disengage the hook arrangement 83.If the operator then grasps the upper housing part 40 in the area of ​​the front 22, for example on a handle contour arranged on the front 22 of the suction housing 11 and not shown in the drawing, or on the carrying handle 19 with one hand, and on the handle 54 with the other hand, the removal of the upper housing part 40 from the lower housing part 30 is particularly easy.

[0132] Closing the suction cup housing 11, i.e., adjusting the upper housing part 40 from the open position O to the closed position S, is possible by simply placing the upper housing part 40 onto the lower housing part 30. This placement corresponds, for example, to a vertical insertion movement.

[0133] The adjustment of the fixing device 50 between the release position L and the fixing position F along the fixing path FB can also be a purely linear or rectilinear movement, i.e., the fixing path FB corresponds to a plug-in path STB. The engagement of the rear gripping contour 52 with the rear gripping contour 53 is also possible without a relative pivoting movement of the upper housing part 40 and the lower housing part 30.

[0134] The hook assemblies 63 and 83 have release contours, namely the release contour 72 on the hook element 64 and the release abutment contour 73 on the hook contour 70, as well as a release contour 92 on the hook element 84 and a release abutment contour 93 on the hook contour 90. The release contour 72 and the hook surface 66A, as well as the release abutment contour 73 and the hook surface 71A, are arranged on opposite sides of the hook projections 66 and 71. Similarly, the release contour 92 and the hook surface 86A, as well as the release abutment contour 93 and the hook surface 91A, are also arranged on opposite sides of the hook projections 86 and 91.

[0135] When the upper housing part 40 is adjusted relative to the lower housing part 30 along the fixing track FB or plug-in track STB, the release contour 72 and the release abutment contour 73, as well as the release contour 92 and the release abutment contour 93, slide along one another and move the hook elements 64, 84 each in the direction of their disengaged position with the associated hook contour 70, 90, so that they can slide past the respective hook projection 71 and 91 and then spring into the fixing position. It is advantageous that the hook elements 64 and 84 are resiliently flexible when released from the engaged position.

[0136] The STB locking track can be a straight locking track, meaning that, for example, both locking arrangements 60 and 80 are locked simultaneously. However, the design of the locking arrangements 60 and 80 also allows for locking arrangement 60 to be engaged first, followed by locking arrangement 80, or vice versa. The handling of the suction device 10 is therefore simple.

[0137] In the hook position EH, the interlocking of the hook assemblies 63, 83 is particularly effective with respect to a pull direction ZR that runs opposite to an insertion direction or insertion axis of the plug-in track STB, along which the upper housing part 40 and the lower housing part 30 can be plugged together. The hook surfaces 66A and / or 71A and / or 86A and / or 91A are inclined to reinforce the interlocking of the hook assemblies 63 and / or 83. For example, the hook surfaces 66A or 86A project at an inclined angle with a directional component parallel to the pull direction ZR in front of the respective base legs 65, 85 of the hook element 64, 84. The hook surfaces 71A and 91A are inclined at an angle opposite to the pull direction ZR.

[0138] The sealing contour 36 rests against the seal 46 in the closed position S. The seal 46 is resiliently flexible, thus acting as a spring assembly 47. The spring assembly 47, for example, biases the lower housing part 30 and the upper housing part 40 away from each other. Furthermore, the spring assembly 47 also biases the hook assemblies 63, 83, thereby reinforcing the interlocking of the hook element 64 with the hook contour 70 and / or the hook element 84 with the hook contour 90. For example, the hook surfaces 66A and 71A as well as the hook surfaces 86A and 91A are biased towards each other by the spring assembly 47 in the closed position S of the suction cup housing 11. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DE 10 2009 015 644 A1

[0002]

Claims

[1] Vacuum device (10) with a vacuum housing (11), wherein the vacuum housing (11) has a dust collection chamber (15) and a suction inlet (13) through which a suction flow can enter the dust collection chamber (15), wherein the vacuum housing (11) has a housing lower part (30) and a housing upper part (40) that can be arranged on the housing lower part (30), wherein a vacuum motor for generating the suction flow is arranged in the housing upper part (40), wherein the housing upper part (40) is adjustable between a closed position (S), in which the housing upper part (40) closes an interior space (35), in particular the dust collection chamber (15), of the housing lower part (30), and an open position (O), in which the housing upper part (40) has a greater distance to the housing lower part (30) than in the closed position (S) and releases the interior space (35) of the vacuum housing (11),wherein the suction device (10) has a fixing device (50) for fixing the upper housing part (40) to the lower housing part (30) in the closed position (S), wherein the fixing device (50) in a fixing position (F) associated with the closed position (S) fixes the upper housing part (40) and the lower housing part (30) to each other and in a release position (L) allows the upper housing part (40) and the lower housing part (30) to be removed from each other, , characterized by, that the fixing device (50) is adjustable into the fixing position (F) by an assembly movement of the upper housing part (40) relative to the lower housing part (30) along a fixing track (FB), and that the fixing device (50) has at least one detent arrangement (60, 80) with a detent contour (62, 82) and a detent element (61, 81) which is spring-loaded into a detent position (RS) associated with the fixing position (F) and is movable by the assembly movement of the upper housing part (40) relative to the lower housing part (30) from a detent release position (RF) associated with the release position (L), in which the detent element (61, 81) is out of engagement with the detent contour (62, 82), into the detent position (RS) in which the detent element (61, 81) is in engagement with the detent contour (62, 82). [2] Suction device (10) according to claim 1, characterized by, that the fixing track (FB) is an essentially linear or completely linear fixing track (FB) and / or a plug-in track (STB) and / or a straight track and / or the housing upper part (40) can be plugged onto the housing lower part (30). [3] Suction device (10) according to claim 1 or 2, characterized by , that the fixing path (FB) begins when at least two components of the fixing device (50) come into contact with each other, and / or the fixing path (FB) extends from a contact between at least two components of the fixing device (50) until the fixing position (F) of all components of the fixing device (50) is reached. [4] Suction device (10) according to any one of the preceding claims, characterized by, that the locking element (61, 81) has a release contour (72, 92) which, in an end section of the fixing track (FB) or the assembly movement, in particular when the housing upper part (40) is placed on the housing lower part (30), abuts a release abutment contour (73, 93) before reaching the closed position (S) and, by a movement of the housing upper part (40) towards the housing lower part (30) in the direction of the closed position (S), moves the locking element (61, 81) into the release position (L), wherein the release contour (72, 92) releases the locking element (61, 81) for adjustment into the fixing position (F) when parts of the housing upper part (40) and the housing lower part (30) in the area of ​​the at least one locking arrangement (60, 80) have a position relative to each other corresponding to the closed position (S). [5] Suction device (10) according to any one of the preceding claims, characterized by, that adjusting the fixing device (50) to the release position (L) includes a disassembly movement of the upper housing part (40) relative to the lower housing part (30) along a release path (LB) from the fixing position (F) to the release position (L). [6] Suction device (10) according to any one of the preceding claims, characterized by , that the release path (LB) ends starting from the closed position (S) when the fixing device (50) no longer impedes the removal of the housing upper part (40) from the housing lower part (30) and / or all components of the fixing device (50) are out of engagement or are only engaged in a way that no longer prevents the removal of the housing upper part (40) from the housing lower part (30). [7] Suction device (10) according to any one of the preceding claims, characterized by, that the release track (LB) starting from the closed position (S) comprises an arc-shaped track section (BLB) corresponding to a pivoting movement of the housing upper part (40) and the housing lower part (30) relative to each other and a subsequent straight or substantially straight track section (GLB). [8] Suction device (10) according to any one of the preceding claims, characterized by , that the fixing device (50) comprises a rear gripping arrangement (51) with a rear gripping contour (53) and an engagement contour (52), wherein the engagement contour (52) engages in the rear gripping contour (53) in the fixing position (F). [9] Suction device (10) according to claim 8, characterized by that the rear gripping arrangement (51) forms a second locking arrangement (80) or that the gripping contour (52) and / or the rear gripping contour (53) is a fixed and essentially non-springy or non-elastic contour. [10] Suction device (10) according to claim 8 or 9, characterized by , that the at least one locking arrangement (60) and the rear gripping arrangement (51) are arranged on sides of the suction cup housing (11) that are at an angle to each other or opposite each other. [11] Suction device (10) according to one of the preceding claims, characterized by , that the locking element (81) of the at least one locking arrangement (80) has a release contour (95) which, starting from the closed position (S) in an initial section of the release path (LB), abuts a release abutment contour (97) during the disassembly movement and deflects the locking element (81) along a movement path, in particular designed as a pivot movement, into the release position (L), wherein an adjustment movement of the locking element (81) into the release position (L) by means of the release contour (95) reinforces the disassembly movement in the sense of facilitating the release of the locking element (81) from the locking contour (82). [12] Suction device (10) according to any one of the preceding claims, characterized by, that the locking element (61, 81) is loaded into the fixing position (F) by a spring (69) separate from the locking element (61, 81) and / or is resiliently connected to a section of the suction housing (11) holding the locking element (61, 81) by means of a spring-elastic material. [13] Suction device (10) according to any one of the preceding claims, characterized by , that the at least one locking arrangement (60, 80) comprises a hook arrangement (63, 83) wherein the locking element (61, 81) comprises a hook element (64, 84) or is formed by a hook element (64, 84) and the locking contour (62, 82) is a hook contour (70, 90) with which the hook element (64, 84) can be hooked, wherein the hook element (64, 84) and the hook contour (70, 90) are engaged with each other in a hook position (EH) to hold the upper housing part (40) to the lower housing part (30) in a tensile-resistant manner. [14] Suction device (10) according to claim 13, characterized by, that the hook element (64, 84) and the hook contour (70, 90) in the hooked position (EH) are loaded in a direction towards each other and / or in the sense of reinforcing the hooking of the hook element (64, 84) with the hook contour (70, 90) by a spring arrangement (47), in particular a sealing arrangement (46B) arranged between the upper housing part (40) and the lower housing part (30). [15] Suction device (10) according to any one of the preceding claims, characterized by , that the locking element (61, 81), in particular the hook element (64, 84), has a handle contour (54) or a handle (54) with which the locking element (61, 81), in particular the hook element (64, 84), can be moved from the locking position (F) to the release position (L). [16] Suction device (10) according to one of the preceding claims, characterized by , that only a single locking arrangement (60, 80) of the fixing device (50) has a handle contour (54) or a handle (54). [17] Suction device (10) according to one of the preceding claims, characterized by , that the at least one locking arrangement (60, 80) has a locking device (75) for securing the locking element (61, 81), in particular the hook element (64, 84), in a disengaged position with the locking contour (62, 82), wherein the locking device (75) has a locking contour (76) and a locking counter contour (77) with which the locking contour (76) engages in a locking position (ST) of the locking device (75) and holds the locking element (61, 81) in the disengaged position and / or wherein the locking contour (76) is arranged on the upper housing part (40) and the locking counter contour (77) is arranged on the lower housing part (30) and in the release position (L) support the upper housing part (40) on the lower housing part (30). [18] Suction device (10) according to any one of the preceding claims, characterized by, that the at least one locking arrangement (60, 80) has two locking arrangements (60, 80), wherein the locking contour (82) and the locking element (81) of one locking arrangement (80) are arranged in an interior (35) of the suction housing (11) and the locking contour (62) and the locking element (61) of the other locking arrangement (60) are arranged on an exterior of the suction housing (11), and / or that the suction device (10) has two hook arrangements (63, 83), wherein hook projections of the hook elements (64, 84) of the two hook arrangements (63, 83) project in the same direction in front of a base body (65, 85) of the respective hook element (64, 84), and / or the hook contour (70, 90) and the hook projection of one hook arrangement (63, 83) are located in the interior (35) of the suction housing (11) and the The hook contour (70, 90) and the hook projection of the other hook arrangement (63, 83) are arranged on an outside of the suction cup housing (11). [19] Suction device (10) according to any one of the preceding claims, characterized by, that the locking element (61, 81), in particular at least the hook element (64, 84), and / or the locking contour (62, 82), in particular the hook contour (70, 90), is designed as a rib structure or forms a rib structure in which several ribs (81B, 90B 95B) are arranged next to each other, of which at least two ribs (81B, 90B 95B) have form-fitting contours suitable for locking and / or hooking. [20] Suction device (10) according to one of the preceding claims, characterized by , that the upper housing part (40) and the lower housing part (30) are pivotally connected to each other by means of a housing pivot bearing (200) at least in the closed position (S) about a pivot axis (SG), so that the upper housing part (40) can be pivoted away from the lower housing part (30) about the pivot axis (SG) starting from the closed position (S). [21] Suction device according to claim 20, characterized by, that the housing swivel bearing (200) has bearing components (201, 202) which are pivotably mounted or can be mounted one another, in particular formed by the engagement contour (52) and the rear engagement contour (53) and / or by the release contour (95) and the release abutment contour (97), which can be separated from one another after undergoing a pivoting movement starting from the closed position (S), so that after the bearing components (201, 202) have been separated the housing upper part (40) from the housing lower part (30). [22] Suction device according to claim 20 or 21, characterized by , that the pivot axis (SG) of the housing swivel bearing (200) runs in an interior space of the suction housing (11). [23] Suction device according to one of the preceding claims, characterized bythat it has a handle (54) with which the fixing device (50) can be moved into the release position (L), in particular the at least one locking arrangement (60) into the release position (RF), wherein the handle (54) forms a handle for further movement, in particular along an arc path, of the upper part of the housing (40) away from the lower part of the housing (30). [24] Method for a vacuum device (10) with a vacuum housing (11), wherein the vacuum housing (11) has a dust collection chamber (15) and a suction inlet (13) through which a suction flow can enter the dust collection chamber (15), wherein the vacuum housing (11) has a lower housing part (30) and an upper housing part (40) that can be arranged on the lower housing part (30), wherein a vacuum motor for generating the suction flow is arranged in the upper housing part (40), wherein the upper housing part (40) is adjustable between a closed position (S), in which the upper housing part (40) closes an interior space (35), in particular the dust collection chamber (15), of the lower housing part (30), and an open position (O), in which the upper housing part (40) has a greater distance to the lower housing part (30) than in the closed position (S) and the interior space (35) of the vacuum housing (11) releaseswherein the suction device (10) has a fixing device (50) for fixing the upper housing part (40) to the lower housing part (30) in the closed position (S), wherein the fixing device (50) in a fixing position (F) associated with the closed position (S) fixes the upper housing part (40) and the lower housing part (30) to each other and in a release position (L) allows the upper housing part (40) and the lower housing part (30) to be removed from each other, , characterized by : - Performing an assembly movement, in particular an assembly movement designed as a plug-in movement or exclusively as a plug-in movement, of the upper housing part (40) relative to the lower housing part (30) along a fixing track (FB) to adjust the fixing device (50) into the fixing position (F), wherein the fixing device (50) has at least one detent arrangement (60, 80) with a detent contour (62, 82) and a detent element (61, 81) which is spring-loaded into a detent position (RS) associated with the fixing position (F) and is moved by the assembly movement of the upper housing part (40) relative to the lower housing part (30) from a detent release position (RF) associated with the release position (L), in which the detent element (61, 81) is out of engagement with the detent contour (62, 82), into the detent position (RS) in which the detent element (61, 81) is in engagement with the detent contour (62, 82) is.

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