DE102013012215A1 - Suction device with a main filter - Google Patents

Abstract

The invention relates to a mobile suction device (10), in particular a construction site or workshop suction device having a suction cup (21) and a suction unit (24) arranged therein for generating a suction flow (S), wherein the suction cup (21) has a suction inlet (27) for connecting a suction line (14) and in the suction cup (21) upstream of the suction unit (24) arranged a filter assembly (26) and provided for collecting dirt dirt collecting space (25) in which by the operation of the Suction unit (24) forms a negative pressure region (131), wherein the nipple housing (21) has a dirt collecting container (46) which delimits the dirt collecting space (25) and which flows in or communicates with the suction inlet (27) or inflow opening (132) the suction flow (S) and a suction flow outlet (60) for the outflow of air to the suction unit (24), and wherein the suction flow outlet (60) of the dirt collecting space (25) and a suction unit inlet (61) of the suction unit (24) via a main filter (49) of the filter assembly (26) for retaining dirt in the dirt collecting space (25) is in flow communication. In the suction device, it is provided that an outer circumference (130) of the main filter (49) lies outside the negative pressure area (131) of the dirt collecting space (25), so that additional air, which may flow into the suction unit inlet (61), may be added to the suction flow (S) from outside the dirt collecting space (25) flows forth.

Description

The invention relates to a mobile suction device, in particular a construction site or workshop vacuum device, which has a suction cup and a suction unit arranged therein for generating a suction flow, wherein the suction cup has a suction inlet for connecting a suction line and upstream of the suction unit in the suction cup a filter assembly and a dirt collecting space provided for collecting dirt are arranged, in which forms a vacuum area by the operation of the suction unit, wherein the suction housing has a dirt collecting, which limits the dirt collecting space and a communicating with the suction inlet or this inflow opening for the inflow of the suction flow and a Suction flow outlet for discharging air to the suction unit, and wherein the Saugstromauslass the dirt collecting space and a suction unit inlet of the suction unit via a main filter of the filter assembly for retaining Dirt in the dirt collecting space is in fluid communication.

Such a mobile suction device is for example in EP 2 229 859 A1 described. The suction device is in principle in two parts and has a lower part, in which the dirt collecting space is provided, and an upper part, namely a lid, in which the suction unit and the main filter are arranged. A sealing arrangement is intended to prevent secondary air from flowing past the main filter to the suction unit inlet and thus contaminating the suction unit. In practice, however, it is difficult to ensure a reliable seal of the suction unit inlet of the dirt-laden air.

It is therefore an object of the present invention to provide a suction device in which the suction unit is protected as much as possible from dirt entry

To solve the problem is provided in a suction device of the type mentioned that an outer periphery of the main filter is outside the negative pressure region of the dirt collecting space, so that possibly flows to the suction additional air flowing into the suction unit inlet secondary air from outside the dirt collecting space ago.

It is a basic idea that the main filter is not arranged so to speak in the vacuum chamber or dirt collecting space, but in principle between the dirt collecting space and the suction unit inlet. If secondary air flows into this space between the dirt collecting space and the suction unit inlet, which can also be referred to as a sealing gap, it is not dirt laden air from the dirt collecting space, but air from the environment of the suction device, which is generally much cleaner, in any case, contains considerably less dust, particles and other dirt than the suction flow. This secondary air can flow into the suction unit inlet on the one hand. If the seal between on the one hand the dirt collector and on the other hand the suction unit inlet is not perfect, also secondary air, so to speak clean air, can flow past the main filter into the dirt collecting space. Thus flows to the suction flow additional secondary air past the main filter directly into the suction unit inlet or via the dirt collecting space in the suction unit inlet, but this is completely unproblematic, since this air compared to the sucked through the suction inlet air, the suction flow or the laden with particles dirt-air, is relatively clean.

For example, there is a sealing gap between the suction unit inlet and the suction flow outlet, in which the outer periphery of the main filter is arranged.

The main filter may be, for example, a pleated filter, a filter fabric or combinations thereof. In any case, the main filter has a filter surface that retains particles and other debris in the dirt collecting space. On the outer circumference of the main filter, a seal is suitably arranged. Preferably, the seal is integrally and / or materially connected to the filter surface of the main filter, for example glued, welded, molded or the like. Thus, no air can flow between the seal and the filter surface. The gasket is, for example, a polyurethane foam, a rubber material, an elastic plastic material or combinations thereof.

It is advantageous if the suction device has a tensioning device for clamping the main filter between the suction flow outlet and an inlet housing region of the suction housing on which the suction unit inlet is arranged, wherein the main filter in a clamping position of the tensioning device between the suction flow outlet and the inlet housing portion is braced.

The tensioning device can have, for example, movable parts mounted on the dirt collecting container, which can engage with abutment contours on the suction cup housing. But it is also possible that moving parts or clamping elements of the clamping device are arranged on the teat housing and can engage with abutment contours or mating contours on the dirt collector.

The clamping device may comprise, for example, a clamping screw. The clamping screw is advantageous with a hand lever, a knob or the like can be handled easily and without tools.

The tensioning device expediently has a tensioning gear which, for example, comprises a lever gear, and / or a wedge or bevel gear or the like.

It is expedient if the tensioning device, in particular its tensioning gear, is designed for a linear relative adjustment of the components to be clamped together so that an end face of the main filter seal with the associated sealing seat on the inlet housing portion or the dirt collecting container substantially over its entire Surface area is evenly loaded with clamping force. The direction of movement of the linear adjustment thus runs approximately perpendicular to the end face or the sealing seat.

For example, the clamping device is provided for clamping the main filter with an inlet housing portion of the nipple housing, on which the suction unit inlet is arranged. In the clamping position of the clamping device of the main filter is then clamped to the inlet housing portion. Thus, for example, the above-mentioned seal is applied to the inlet housing area.

It is also possible for a seal to be provided on the inlet housing region, which seal cooperates with the main filter, for example, against the filter surface of the main filter. In other words, the main filter need not have its own seal, but may also cooperate with a seal, which is provided so to speak from the inlet housing portion or from the dirt collecting container or is arranged there.

For clamping, various techniques are suitable, some of which are presented below by way of example.

The tensioning device comprises, for example, a lever arrangement, for example a toggle lever arrangement, for adjusting the main filter into the tensioning position.

Furthermore, it is advantageous if the clamping device has a roller arrangement or roller arrangement, with which the main filter can be rolled so to speak into the clamping position.

Also preferred is an inclined surface arrangement with at least one clamping bevel for adjusting the main filter in the clamping position. It is also possible that a lever arrangement is provided, which is suitable for actuating the inclined surface arrangement, for example for adjusting the at least one clamping bevel.

Combinations of lever arrangement and / or roller arrangement and / or inclined surface arrangement are also possible.

It is preferred if a latching device for latching the clamping device in the clamping position is present. For example, the latching device can act directly on the main filter. But it is also possible that the latching means an actuating element, with which the clamping device can be actuated, locked in the clamping position.

Furthermore, it is advantageous if a release device for releasing the main filter from the inlet housing portion or the dirt collecting container is provided. For example, it is possible for the aforesaid gasket to bond somewhat more tightly to the inlet housing portion or to the dirt collection container than desired, for example, to adhere. The release device makes it possible to detach the main filter from the inlet housing portion or the dirt collecting container, for example linearly move away or swing away.

The release device comprises, for example, a release bevel or a lever arrangement acting in the sense of a release, or both.

It is also possible that the clamping device comprises the release device integrally, that is, that the clamping device is suitable on the one hand for adjusting the main filter in the clamping position, on the other hand also for releasing the main filter from the clamping position into a release position.

Preferably, a carrying handle, for example in the form of a bracket, handle or the like, is provided, which is suitable for carrying the dirt collecting container. Thus, the dirt collector can be worn as a whole. The carrying handle may for example be L-shaped or U-shaped. For example, if a bottom of the sucker housing of the suction device integrally includes the dirt collector, it may be carried as a whole on the carrying handle. Also, a dirt collector, which can be removed from the teat housing, can be taken so convenient.

In the suction device is advantageously provided that the dirt collecting space is provided in a dirt collecting container which is insertable into a container receptacle of the sucker housing and there in a Saugbetriebstellung the dirt collecting a suction flow outlet of the Dirt collecting container is in flow communication with a suction unit inlet of the suction unit, wherein the dirt collecting container for removing dirt collected in the dirt collecting space from the sucker housing is removable, and that at least one filter holder for holding at least one filter element of the filter assembly is provided in the dirt collecting container.

It is a basic idea that no longer the mobile suction device as a whole to a disposal site, such as a garbage bin, must be brought, but that you have a removable from the nipple housing dirt collector, which greatly simplifies handling. In particular, when the suction device is not moved on rollers on a substrate, it is advantageous if the user does not have to take the suction device as a whole, for example, to the garbage can, but can bring the relatively lightweight and compact dirt collection container to the disposal site.

The dirt collector has an example cubic or box-like shape. Thus, therefore, preferably a bottom wall and extending upward away extending side walls are provided.

The carrying handle preferably forms an actuating member for actuating the clamping device and / or the release device. For example, the carrying handle acts as a lever arm or is pivotally mounted on a lever arm. But it is also possible that the carrying handle comprises at least one inclined surface of an inclined surface arrangement, for example, the aforementioned clamping bevel and / or the release bevel or with such, for. B. cooperates with container receiving inclined. Of course, a plurality of bevels may be provided on the carrying handle, for example at least one clamping bevel and / or at least one release bevel.

It is also possible that on the carrying handle a clamping cam is provided for clamping the main filter in the clamping position. Also, a roller or roller or the like may be provided on the carrying handle.

A preferred embodiment of the invention provides that an outer peripheral contour of the dirt collecting container correlates with an inner peripheral contour of the container receptacle of the teat housing in such a way that the dirt collecting container can be inserted in a form-fitting manner into the container receptacle. An inner peripheral contour of the container receptacle is preferably designed for a positive retention of the dirt collecting container. An outer peripheral contour of the dirt collecting container preferably fits completely or at least in sections, preferably substantially, in a form-fitting manner with an inner peripheral contour of the container receptacle.

The container receptacle expediently comprises a plug-in receptacle into which the dirt collecting container can be inserted.

The container receptacle is preferably open at the top. It is expediently provided that the dirt collecting container also holds in the container receptacle without locking means. But it is also possible that the suction device comprises locking means for locking the dirt collecting container in the container receptacle. The locking means include, for example, hooks, bolts, pivot bolt, sliding bolt or the like. It is also possible that the dirt collecting container is held in a clamping seat in the container receptacle.

In the dirt collecting container is preferably a filter bag can be arranged, d. H. in that the at least one filter holder comprises a filter holder for a filter bag, so to speak a filter bag filter holder. The advantage here is that the dirt contained in the filter bag can be disposed of hygienically. But it is also possible, the dust collecting space is configured for a direct recording of dirt, dust and the like other particles, that is, that the dirt accumulates directly in the dirt collecting space of the dirt collector and disposed of there. The filter bag is not necessary.

An embodiment of the invention, which is also advantageous together with the aforementioned filter bag, provides that the at least one filter holder comprises a filter holder for a main filter. The main filter can be, for example, a filter fleece, a pleated filter or the like. The main filter keeps the dirt from getting out of the dirt collection room into the suction unit. The main filter works in combination with a filter bag and without filter bag.

It can be provided that the suction device has a cleaning device for cleaning the main filter, for example by means of countercurrent, shaking, etc.

The filter holder for the main filter is expediently arranged on the suction flow outlet of the dirt collecting container, so that the suction flow outlet can be closed by the main filter. The suction flow thus flows through the main filter in the direction of the suction unit.

The main filter expediently forms essentially a side wall of the dirt collecting container. The suction flow outlet is expediently arranged on a side wall of the container insert and is covered by the main filter. It is particularly preferred if the main filter covers virtually the entire side wall surface of the dirt collecting container, which faces the suction unit.

The nipple housing and / or the dirt collecting container are expediently closed by a lid.

A preferred concept provides that the dirt collecting container is open at its top and can be closed by a lid.

It is possible, for example, for the dirt collecting container to be provided with a cover which is separate from the sucker housing, that is, as it were, a dirt collecting container lid. Thus, the dirt collecting container closed by the dirt collecting container lid can be carried to the place of disposal, for example, a dustbin. This is especially hygienic.

The suction inlet is expediently arranged on the cover.

It is preferred if a connection element or pipe element is arranged at the suction inlet, for example a kind of connection piece. The pipe element opens into the dirt collecting space. It is preferably provided that the pipe element is provided and configured, when closing the lid with a arranged in the dirt collecting filter bag, d. H. the inflow opening to be in fluid communication. Thus, when the lid is closed, the tube element and thus the suction inlet comes into flow communication with an inflow opening of the filter bag.

The sucker housing has, for example, a base housing which can be closed by a cover, so to speak a sucker housing cover. The sucker housing cover expediently covers the suction unit and / or at least one accumulation receiver for stowing an accessory of the suction device, for. As a nozzle or the like from.

An advantageous embodiment of the invention provides that the lid for closing the dirt collecting container is formed by the Saugergehäuse cover.

Between the respective lid, d. H. the dirt collecting container lid or the lid of the sucker housing, and the dirt collecting container is expediently provided a sealing arrangement, for example comprising O-rings and the like. Particularly preferably, the seal assembly is located on the lid.

When the lid is opened, it releases the interior of the nipple housing, so that the dirt collector can be removed. When the lid of the sucker housing simultaneously forms the lid for the dirt collecting container, both are opened in a train, namely the sucker housing and the dirt collecting container, so that a filter bag or the like arranged approximately in the interior of the dirt collecting container can comfortably and directly access another filter element, the dirt collecting space or the like is.

The dirt collector, for example, has solid walls that limit the dirt collecting space, ie a cavity. For example, the dirt collector is in itself approximately cubic. Furthermore, it is possible for the dirt collecting container to have a lid, wherein the lid can be provided on a container housing of the dirt collecting container, but also on a base housing of the teat housing. The dirt collecting space is conveniently closed during operation of the suction device except for the inflow port forming or communicating with the suction flow inlet and the suction flow outlet fluidly connected to the suction aggregate inlet. Thus, therefore, the dirt collector preferably forms a kind of capsule for the dirt.

A variant of the invention, for example, in a suction device according to EP 2 229 859 A1 can be realized, provides that the dirt collecting container forms an integral part of the sucker housing. In such a suction device, for example, the main filter extends over the entire top of the dirt collecting space and / or the dirt collecting container, whereupon the lid is then placed with the suction unit. If then laterally air, namely secondary air, at the density level between the main filter and the suction unit having the lid over in the direction of the suction unit inlet flows, this is relatively clean air. It is also possible that the filter does not extend all the way to the outer wall of the sucker housing. For it is also possible, for example, that the atmospheric pressure via a corresponding inflow openings, for. As channels and / or a slot, can get into the interior to the density plane between the main filter and suction unit inlet.

It is preferred if the dirt collecting container for removing dirt accumulated in the dirt collecting space from the sucker housing is removable.

The above explanations with regard to the tensioning device and the main filter release device also apply to a dirt collecting container removable from the dirt collecting space, ie, the tensioning device is designed to clamp the dirt collecting container in the container receptacle and the releasing device to release the dirt collecting container from the container receptacle. This is particularly easy to implement if the main filter forms part of the dirt collection container or is held there on a filter holder.

But it is also possible that the main filter is arranged at the suction unit inlet and the dirt collecting container, when it is inserted into the container receptacle, is clamped by the clamping device there, so that ensures a tight fit of the main filter in the sealing gap between suction unit inlet and dirt collection is.

The main filter can indeed, but does not have to be arranged on the dirt collector. For example, the main filter may also be arranged on a suction unit having the housing portion of the sucker housing, which can be brought into fluid communication with the dirt collecting container. For this purpose, the housing section is adjusted, for example, to the dirt collector out or vice versa, the dirt collector to the housing section. For example, the housing portion is a lid similar to a base as in FIG EP 2 229 859 A1 described, is brought.

An embodiment of the invention shown in the drawing provides that the main filter is arranged on the dirt collecting container so that it is removed when removing the dirt collecting container from the nipple housing.

At least one filter holder is expediently provided in the dirt collecting container for holding at least one filter element of the filter arrangement. The filter holder serves, for example, to hold the main filter. But it can also be kept, for example, a filter bag on another element of the filter holder.

It is preferable if the outer circumference of the main filter extends in the manner of a frame around the suction flow outlet forming part of the dirt collecting container.

The sucker housing is advantageously formed on its upper side for stacking a container along a stacking direction. Appropriately, it is provided that the suction device comprises an attachable on the top of the sucker housing in the stacking direction container attachment, the connecting means for establishing a connection with at least one provided on the sucker housing vacuum cleaner connection.

It is a basic idea that at the top of the mobile suction device quasi an essay can be saddled or stacked, which communicates with the nipple housing, that is connecting means for establishing a connection with at least one provided on the nipple housing vacuum cleaner connection. The container attachment can fulfill various tasks, for example, provide storage space for a suction hose, serve for the storage of an electrical connection cable or the like. Also, other functions that are not available in the basic suction device, can be outsourced in the container essay, so to speak. For example, the container attachment can provide a further storage volume for dust, dirt or the like or at least one operating element or display element for operating the basic suction device.

The connecting means may for example comprise one or more passage openings for a line which can be connected or connected to the vacuum cleaner connection, or be formed by at least one passage opening. For example, the line is the suction line, for example a suction hose, an electrical line or both. It is also possible that a combination line is used, i. H. that, for example, electrical connection means are also provided on the suction hose itself, for example for operating an electric brush arranged at the free end of the suction line.

The vacuum cleaner connection is expediently arranged on an upper side of the sucker housing, on which the container attachment can be arranged. The vacuum cleaner connection advantageously comprises the suction inlet. The passage opening expediently communicates with the suction inlet of the sucker housing, so that the suction line can be connected or connected to the suction inlet through the passage opening. Thus, therefore, the suction line can extend away from the container attachment in the direction of the work site.

The passage opening allows, for example, a passage through the suction line. The advantage here is that, for example, a plug connection is plugged into the suction line directly into the suction inlet of the sucker housing, for example, fits this form-fitting. Additional interfaces are not available, ie a risk of leakage in the suction line is low. It is but also possible that at the passage opening a connection element for connection to the suction inlet of the sucker housing is provided and the suction line with the connection element for establishing a flow connection to the suction inlet of the sucker housing is connectable, for example by means of a connector. Thus, so to speak, initially the container attachment provides the flow connection to the suction inlet of the suction housing and also a connection to which in turn the suction line can be connected.

It is advantageously provided that the connection means comprise an electrical contact arrangement for establishing an electrical connection between the container attachment and a suction device contact arrangement provided on the suction device housing, and the container attachment a control element and / or display element for operating or displaying at least one function of the suction device with the electrical contact arrangement is electrically connected and / or connected to the contact arrangement electrical connection, in particular for an electrical connection cable of a hand-held machine tool having.

The connecting means expediently comprise at least one plug connection for producing an electrical or pneumatic plug connection with the vacuum cleaner housing. It is thus possible, for example, that electrical contacts on the container top communicate with electrical contacts of the sucker housing, so that an electrical connection between the sucker housing and the container top is present. Thus, for example, messages from output means, eg. As a display and / or a speaker, the container attachment are issued, for example, warnings when the dirt collection space is full or the like.

It is also possible that, for example, an operating element or display element on the container top communicates via the electrical connections with the nipple housing, for example a control of the suction device.

Furthermore, it is possible for a connection to be made between the container attachment and the suction housing via the pneumatic connector, so that, for example, a pneumatic connection, for example for a compressed air tool, of the container attachment with a pneumatic connection of the cleaner housing, as it were the basic suction device, in flow connection stands.

A simple embodiment provides that one or more passage openings are present. That was already mentioned. For example, the at least one passage opening comprises a passage opening for an electrical or pneumatic junction box provided on the nipple housing, so that a plug connection element, for example an electrical or pneumatic plug connection element, can be connected to the junction box through the passage opening. So if, for example, a plug of a hand-held machine tool is to be plugged into the suction device, d. H. in a socket of the suction device, this socket is accessible through the passage opening of the container top through. The container top can provide protection for the outlet.

The passage opening may also include a passage opening for at least one operating element or display element for operating the suction device. The control element forms, so to speak, a vacuum cleaner connection in the form of an operating connection. The operating element may, for example, include a display for indicating a function of the suction device, for example level, engine power or the like. Preferably, the operating element comprises a switching element for switching on and off the suction device. The setting of an operating parameter, such as speed, power or the like, may be possible through the passage opening on the control element.

The container attachment preferably provides a receiving cavity for a line of the suction device, for example the suction line, an electrical connection line or both. The advantage of this arrangement is therefore that the container attachment is quasi a depot that can be used as needed for this line. For example, the container attachment on a peripheral wall which limits the receiving cavity on the periphery. Thus, if, for example, the suction line, which tends to roll out again, is received in the receiving cavity, it bears against the inner sides of the peripheral wall. The peripheral wall may or may not be closed. It can also have breakthroughs or interruptions.

If the receiving cavity is not needed, the operator simply removes the container attachment from the nipple housing so that the suction device is smaller and easier to transport.

The receiving cavity is preferably designed as an upwardly open and accessible from above receptacle. Thus, for example, a suction hose or an electrical connection line can be inserted from above into the receptacle of the container attachment.

Preferably, the container attachment comprises a carrying handle assembly for supporting the stack comprising the container attachment and the nipple housing. Of course, further, for example, arranged on the underside of the sucker housing container of the stack can be easily transported in this way. For example, a transport box for a tool can be fastened below the sucker housing.

The carrying handle assembly may include, for example, laterally arranged on the container top, in particular pivotable carrying handles. Particularly preferred and illustrated in the drawing, the carrying handle assembly comprises an upwardly projecting carrying handle, for example a kind of handle, web or the like. Preferably, the carrying handle is located approximately in the center of an upper side of the container attachment.

However, the carrying handle is expediently designed such that it does not protrude in front of a provided for stacking an upper container top support surface of the container attachment. For example, the support surface is formed by a peripheral wall of the container attachment.

It is preferred if the carrying handle forms a winding aid for winding a line, for example the suction line, in particular a suction hose, or an electrical connection line. The suction line can thus, for example, be wound around the carrying handle which, in particular, projects there in the center of the upper side of the container attachment and projects there, for example, in the manner of a dome. When the suction line relaxes again, it expediently pushes in the direction of the peripheral wall, which limits the receiving cavity of the container attachment.

The sucker housing expediently has in the region of the upper side of the sucker housing first coupling means for cooperation with second coupling means of the upper container to a tensile strength in the stacking direction coupling of the sucker housing with the upper container. The coupling means may comprise, for example, hooks, pivot bars, tabs or the like.

The container attachment expediently has second coupling means cooperating with the first coupling means of the nipple housing for coupling with the nipple housing that is tensile in the stacking direction. This is advantageous, for example, in connection with the mentioned carrying handle arrangement of the container attachment.

An advantageous embodiment of the invention provides that the container attachment has on its upper side the second coupling means of the sucker housing and suitable for coupling the attachable to the suction cup container second coupling means. Thus, therefore, the container attachment and the nipple housing have substantially the same coupling means, so that the container can be arranged tensile strength selectively with respect to the stacking direction at the top of the nipple housing and the container attachment. The operator can thus optionally arrange the container or the container top of the nipple housing. The system concept goes so far that, for example, a stack consisting of the nipple housing, the container top and the other container can be formed and the associated coupling means are completely compatible with each other.

An outer peripheral contour of the nipple housing and an outer peripheral contour of the container cap suitably correspond to each other such that the outer peripheral contour of the nipple housing and the container cap are aligned with each other when the container cap is stacked on the nipple housing. The advantage is therefore that a quasi-homogeneous stack can be formed consisting of suction cup and container attachment.

The container attachment expediently comprises at least one lateral opening, for example a groove or a passage opening, for the suction line. For example, therefore, the suction hose, an electrical connection line of the suction device or the like can be inserted into the lateral opening from above or from the side and penetrate it. The side opening may be open at the top or side, but it does not have to. It may have a closed outer circumference, so for example be designed as a kind of bore.

It is preferred if the at least one opening to the top of the container attachment is open, so that the suction line or the electrical connection line or both can be inserted from above into the opening.

The opening is preferably arranged so deep and / or such that the suction line or electrical connection line accommodated in the opening does not project in front of an upper-side support surface of the container attachment provided for stacking an upper container.

For example, the opening is provided on a peripheral wall, the upper side of which represents the support surface. The opening provided there for the suction line or the electrical connection line are expediently so deep that you can insert the suction line or electrical connection line completely into the opening on the peripheral wall. Therefore, it is therefore appropriate that the suction line or electrical connection line does not hinder the placement of a further container on the container attachment in the stacking direction.

The sucker housing expediently has a base housing and a cover with which an interior of the base housing can be closed. The container attachment is expediently mounted on the lid. It is preferred if the lid of the teat housing with the container top stacked on it can be opened. Thus, the interior of the main body is easily accessible even when the container top is mounted on the lid.

It is preferred if coupling means, for example the aforementioned first coupling means, comprise a locking element for locking the container attachment to the suction cup housing. The locking element locks in a position locking the container attachment the container attachment the lid across the base housing. The locking element thus absorbs the forces that are necessary to hold the container attachment to the base housing.

The container attachment expediently has an additional volume, which is additional to the dirt collecting space in the nipple housing, for receiving dirt, for example a pre-separator for dirt.

In the suction device, it is advantageously provided that the suction inlet is arranged on the upper side of the teat housing intended for stacking the upper container. The nipple housing may form part of a stack. In per se the stacking of another container preventing manner, the suction inlet is arranged on the top of the sucker housing. As a result, the suction inlet is conveniently accessible from above.

The sucker housing has, for example, a base housing and a cover with which an interior of the base housing can be closed. The suction inlet is expediently provided on the lid. But it is also possible that the suction inlet is provided next to the lid or at least on a fixed area of the top of the teat housing. Thus, while the nipple housing may have a lid, it does not have to.

The suction device according to the invention is a mobile suction device. The suction device may have rollers for driving on a substrate. Appropriately, but no roles are provided. Of course, the suction device could also be a portable suction device which has rollers or has no rollers. The suction device according to the invention is expediently not designed as a self-sufficient, working in the manner of a robot suction device. The suction device can be taken by the operator and used on site. Furthermore, a suction hose can be connected to the suction device expediently.

1 a perspective oblique view of a suction device according to the invention, the in

2 the suction device is shown in operation together with a hand-held power tool,

3 the suction device according to 1 . 2 with lid open,

4 a dirt collecting container of the suction device according to 1 - 3 .

5 according to the dirt collector 4 with a filter bag,

6 a container attachment of the suction device according to the preceding figures from a perspective obliquely above,

7 the container attachment according to 6 from underneath,

8th a first container and

9 a second container for coupling with the suction device of the preceding figures,

10 the suction device according to 1 - 6 with the lid open, about the same 3 , wherein on the lid of the container attachment according to 1 . 6 . 7 is arranged, and

11 a non-inventive suction device on which the container according to 8th . 9 or the suction device of the preceding figures can be arranged,

12 a stack with the suction device according to the invention and other containers,

13 a perspective oblique view of the suction device according to the invention with a dirt collecting container used,

14 the suction device according to 13 , but without dirt collector,

15 a partial sectional view of the suction device according to 13 approximately according to a section line AA,

16 according to the dirt collecting container of the suction device 13 with in one Non-use position pivoted carrying handle, which forms part of a lever-tensioning device,

17 according to the dirt collector 16 , but with carrying handle pivoted up into a carrying position,

18 a partial sectional view approximately corresponding to a section B in 13 with the position of the handle accordingly 16 .

19 the view according to 18 , but with a swung handle as in 17 .

20 a first variant of the embodiment according to 13 - 19 wherein an inclined surface tensioning device is provided,

21 according to the dirt collecting container of the suction device 20 .

22 a frontal view of the suction device according to 20 with displaced in a release position inclined surface tensioning device,

23 the clamping device off 22 in tension position,

24 a second variant of the embodiment according to 13 - 19 with a lever-roller clamping device,

25 a dirt collecting container of the suction device according to 24 .

26 a frontal view approximately according to the view according to 22 with in-position clamping device, and

27 the tensioning device according to 26 in tension position.

A mobile suction device 10 includes a basic device 20 and a container attachment 70 , the top of a nipple case 21 of the basic device 20 is stackable ( 1 and 10 ). In the nipple housing 21 , which is a lower part or basic housing 22 as well as a lid 23 has, are a suction unit 24 for generating a suction flow, a dirt collecting space 25 and a filter assembly 26 intended. The suction flow flows through a suction inlet 27 in the nipple housing 21 and flows through the dirt collecting room 25 , wherein the filter assembly 26 in the suction flow contained dirt, for example, dust, sawdust or the like other particles in the dirt collecting space 25 holds back so that the suction unit 24 sucks in a known manner so to speak filtered air.

The sucker housing 21 forms a system housing with other system components, namely with, for example, the containers 400 . 450 according to 8th and 9 and with the not according to the invention, on rollers movable on a ground vacuum cleaner 280 according to 11 can be coupled.

The basic housing 22 has a floor 28 on, from which side walls are upwards away 29 . 30 . 31 . 32 extend. Overall, the basic housing has 22 a cubic figure. The side wall 29 is a front side wall, the side wall 31 a rear side wall. The side walls 30 and 32 are z. B. transverse side walls, in particular narrow side walls. The side walls 29 - 32 limit an interior 33 ,

In the interior 33 is a housing section 120 provided in which the suction unit 24 protected and encapsulated. The housing section 120 includes a section of the floor 28 , the side wall 32 as well as sections of the side walls 29 and 31 , The housing section 120 further includes a cover 34 that the suction unit 24 covering the top. By the aforementioned walls and one of the side wall 30 opposite wall 121 is the suction unit 24 completely enclosed, except for one on the wall 121 arranged suction unit inlet 61 through which the suction unit 24 sucked in the suction flow, and one not visible in the drawing, z. B. on the side wall 31 arranged outflow opening through which the suction unit 24 blows out the suction flow.

At the cover 34 there are pictures 35 . 36 in which accessories 37 . 38 , For example, suction nozzles, brushes or the like, of the suction device 10 are included. The interior 33 is through the lid 23 closable. The lid 23 has an upper cover wall 40 , from the side walls down 41 . 42 . 43 . 44 extend. The side walls 41 - 44 aligned with the side walls 29 - 32 of the basic housing 22 when the lid 23 the interior 33 closes. For example, on the cover 34 lateral inclined surfaces 39 provided by the side walls 41 . 43 . 44 be overturned when the lid 23 is closed (see 2 ).

The lid 23 also closes a container receptacle 45 that are in the interior 33 located. The container pickup 45 could in itself serve as a dirt-collecting room. In a particularly favorable manner, however, it is provided that the container receptacle 45 for receiving a dirt collecting container 46 serves in which a filter holder 47 and a filter holder 48 are provided. The filter holder 47 serves to hold a main filter 49 , that is a filter element.

At the filter holder 48 is a filter bag 50 attachable ( 5 ), which is suitable for collecting particles or other dirt and is another filter element. The filter bag 50 is in use state of the suction device 10 in the dirt collection room 25 arranged. The filter bag 50 has, for example, a connection plate 51 with an inflow opening 52 on. The connection plate 51 can be in a swivel mount 53 the filter holder 48 be hung so that, for example, the connection plate 51 from the dirt collection room 25 can be swung out (not shown). The connection plate 51 could also be a part of the filter holder 48 form. Then the connection plate would be 51 For example, to produce plastic advantageous, while they are part of the filter bag 50 suitably made of cardboard.

The dirt collector 46 has a floor 54 on, from which sidewalls 55 - 58 extend upward. Above has the dirt collector 46 an access opening 59 , The dirt collection room 25 is through the side walls 55 - 58 and the floor 54 limited. Through the access opening 59 is the dirt collection room 25 easily accessible.

The filter holder 47 for the main filter 49 extends to the side wall 58 , The filter holder 47 For example, includes a frame in the interior of the main filter 49 is held. The main filter 49 has a size extent, about that of the side wall 58 corresponds, so to speak, almost the full sidewall 58 through the main filter 49 is formed.

The filter holder 47 extends around a suction flow outlet 60 of the dirt collector 46 , The suction flow outlet 60 is through the main filter 49 so to speak, covered so that only by the main filter 49 cleaned air in the suction unit 24 flow.

If the dirt collector 46 in the container receptacle 45 is used, see 10 , communicate the suction flow outlet 60 of the dirt collector 46 and a suction unit inlet 61 the suction unit 24 each other and are in fluid communication with each other.

On the side walls 56 and 58 of the dirt collector 46 are support areas 83 for the connection plate 51 the filter bag 50 or the filter holder 48 intended. This is the connection plate 51 in the in 5 supported use position supported, so that the inflow opening 52 for fluid communication with the suction inlet 27 ready.

The side walls 55 - 58 as well as the ground 54 define an outer circumferential contour 62 of the dirt collector 46 in an inner circumferential contour 63 of the sucker housing 21 , the form-fitting in the container receptacle 45 fits. The container pickup 45 and its inner peripheral contour 63 be through the sidewall 30 as well as the side walls 29 and 31 and the floor 28 and by the not visible in the drawing, the suction unit inlet 61 defined containing inner wall.

The container pickup 45 is a plug-in receptacle into which the dirt collector 46 fits snugly and is pluggable. This is the replacement and replacement of the dirt collector 46 very easy. He just has to top off the container receptacle 45 be lifted out. An advantage is that the operator the dirt collector 46 can easily bring to a disposal location and there, for example, the filter bag 50 from the dirt collector 46 away. The relatively heavy suction device 10 , at least the basic device 20 so do not have to be transported if dirt is present for disposal. The concept is also very hygienic.

But also the opening and closing of the dirt collector 46 is simplified, namely because no separate lid for the dirt collector 46 is necessary, but the lid 23 also the function of a lid for the dirt collector 46 Fulfills. Of course, it would be possible to get the dirt collector 46 closes with a separate lid, so that especially if no filter bag 50 is used in the dirt collecting room 25 Contaminated dirt does not enter the environment when disposed of.

At the the dirt collection room 25 facing bottom of the lid 23 there is a cover section 64 to cover the dirt collector 46 , On the outer circumference of the deck section 64 is a seal 65 provided, with closed lid 23 between the upper end faces of the side walls 41 - 44 and the lid 23 to come to rest. The seal 65 , So a seal assembly used to close and tight covering the dirt collecting space 25 ,

The dirt collection room 25 is through the lid 23 except for its suction flow outlet 60 and the one inflow opening 132 forming suction inlet 27 closable. The suction flow S, from the suction unit 24 is generated, so flows through the inlet opening 132 in the dirt collection room 25 in and out of the suction flow outlet 60 from the dirt collection room 25 out.

If the lid 23 closed, enters in front of the bottom of the lid 23 or in front of the deck section 64 protruding connection element 86 in flow communication with the filter bag 50 , The connection element 86 For example, includes a short, protruding pipe section, which in the inflow opening 52 when closing the lid 23 penetrates. Through the support areas 83 is ensured that the connection plate 51 does not evade in this so-called automatic production of a plug-in connection or flow connection.

From an electrostatic point of view, it is advantageous if a ground contact 67 on the lid 23 in contact with a mating contact 66 For example, at the top of the cover 34 , gets when the lid 23 closed is.

The suction device 10 can have one or more controls 11 , for example a switch 12 for switching on and off the suction device 10 and preferably also for adjusting a power of the suction unit 24 exhibit. The desk 12 is a tap changer and allows z. B. the switching of a first and a second power stage and / or an operating mode 'of the suction device 10 so that this is turned off, for example, or permanently switched on or during operation of the hand-held machine tool 300 automatically turns on and off.

The controls 11 are for example on the side wall 32 arranged. There is also a suitably provided electrical junction box 13 into which a connection cable, for example a hand-held machine tool 300 , can be plugged in (not shown). The hand machine tool 300 For example, a grinding machine, a saw or the like, then switches the suction device 10 on and off, for example, by a control of the suction device 10 a current flow to the hand machine tool 300 detected. The lateral arrangement of the controls 11 on the side wall 32 enables ergonomic handling of the suction device 10 even if it is integrated into a stack consisting of further components which will be described later. That would not be necessary, which will become clear later.

With the hand machine tool 300 can workpieces, for example, a workpiece plate 301 , to be edited. The resulting dust or other particles, in the case of a saw, for example chips, are in a comfortable manner by the suction device 10 sucked off, including a suction line 14 , for example, a suction hose 18 , to the suction inlet 27 can be connected.

The suction hose 18 For example, has a connector 15 , For example, a pipe element or the like, which in the one plug-in receptacle 68 having suction inlet 27 can be inserted.

The connection piece 15 has an angular shape, that is one for insertion into the socket 68 provided plug-in section 16 and one for connecting the suction hose 18 provided connection section 17 are mutually angled, for example, at right angles. The fitting could also be arcuate.

The angular or arcuate shape is particularly advantageous in the action described in detail below, ie that the suction hose 18 including its connector 15 on the one hand in the 2 shown operation is convenient, in which he is in the top 69 of the sucker housing 21 arranged suction inlet 27 plugged in directly without being on top 69 an object or a container or the like is, on the other hand, even if one in the 6 and 7 in detail illustrated container attachment 70 at the top 69 is arranged.

In itself it is a hindrance that the suction inlet 27 at the top 69 is arranged, because one does not readily the example in 8th illustrated container 400 or the in 9 illustrated container 450 at the top 69 of the sucker housing 21 can arrange when the suction hose 18 on the suction device 10 at least the basic device 20 , is arranged.

The suction device 10 can in the form of the basic unit 20 be used effectively ( 2 ), but also with the extremely convenient and labor-facilitating container attachment 70 , The container tower 70 has a bottom wall 71 as well as high side walls 72 . 73 . 74 . 75 on. The side walls 72 - 75 limited together with the bottom wall 71 an interior or a receiving cavity 76 of the container attachment 70

Overall, the container attachment 70 a cubic figure.

From the bottom wall 71 stands a carrying handle 77 upwards. The carrying handle 77 has the shape of a handle, so that the operator the container attachment 70 can comfortably take. The carrying handle 77 is expediently located approximately in the center of the bottom wall 71 so that a favorable center of gravity is given.

In addition, the carrying handle serves 77 expediently as a winding aid for in 6 just partially shown suction hose 18 , This suction hose 18 So can the handle 77 to be wrapped around. The suction hose 18 has a tendency to relax, ie, when not experiencing external force, it lays against the insides of the sidewalls 72 - 75 at.

At the upper, free sections of the side walls 72 - 75 are expediently inwardly projecting wall sections 78 that continue to help make the suction hose 18 in the receiving cavity 76 , the interior of the container tower 70 , is detained.

The suction hose 18 or the suction line 14 but not only when the suction device is not in use 10 at least partially in the receiving cavity 76 or the interior of the container attachment 70 be arranged, but also during operation.

These are lanyards 80 of the container attachment 70 seen that a functional coupling of the container attachment 70 with the basic device 20 enable.

The connecting means 80 For example, include a passage opening 81 on the bottom wall 71 , The passage opening 81 then aligns when the container attachment 70 on the sucker housing 21 is attached directly to the suction inlet 27 , Thus, the connection piece 15 through the passage opening 81 through into the suction inlet 27 be plugged in ( 1 ). If the suction hose 18 is not needed, it is simply wound up and in the interior of the container attachment 70 that is the receiving cavity 76 , stowed away. He does not have to do this from the suction inlet 27 be separated.

But even if on the tops of the wall sections 78 , the support surfaces 79 define an object, such as one of the containers 400 or 450 is arranged, you can see the suction hose 18 / the suction line 14 in an ideal way from the receiving cavity 76 lead out. On the side wall 75 there is a side opening 82 whose cross section is a cross section of the suction line 14 / suction hose 18 corresponds, so that the suction line 14 / the suction hose 18 if he / she is in the opening 82 is absorbed, not in front of the support surfaces 79 protrudes.

The carrying handle 77 is not in front of the support surfaces 79 upwards.

Also an electrical connection line 19 for the electrical power supply of the suction unit 24 , for example, a power line, can in the container attachment 70 stowed cheap. The connection cable 19 is on the sidewall 32 of the sucker housing 21 arranged and has a plug for plugging into a socket (not shown). The connection cable 19 can through a passage opening 84 into the receiving cavity 76 , ie the interior of the container attachment 70 , inserted and there as well as the suction line 14 be stowed comfortably.

It is advantageously possible, the connection line 19 together with the suction line 14 through the side opening 82 through to the outside.

The passage opening 84 is located in an edge area between the side wall 75 and the bottom wall 71 , Below the passage opening 84 is a holding shot 85 on the side wall 32 of the sucker housing 21 provided in which the connecting cable 19 can be introduced. This is located on the front of the holding receptacle 85 a slot.

It is also possible that the basic unit 20 further, by stacking the container attachment 70 inaccessible components on its top 69 has, for example, a display element and / or control 87 for switching and adjusting the suction device 10 and / or may be suitable for displaying operating parameters, an electrical connection box 88 , for example, to plug in a power cord. At the container attachment 70 are in this case expediently passage openings 87a and 88a provided so that the control element and / or display element 87 and the junction box 88 remain accessible. The passages 87a and 88a are expediently on the bottom wall 71 arranged. The side walls 72 - 75 protect those in the passages 87a and 88a arranged functional components.

The connection cable 19 , the suction inlet 27 as well as the junction box 88 , the control or display element 87 form as well as the contact arrangement 89 each a vacuum cleaner connection 100 ,

It is also possible that, for example, a direct electrical connection between the nipple housing 21 and the container attachment 70 will be produced. For example, a contact arrangement 89a the connecting means 80 present, the z. B. resilient contact surfaces and / or fixed contact surfaces and / or a plug connection 89b may include or be arranged thereon and when stacking the container attachment 70 on the sucker housing 21 in electrical connection with a suction device contact arrangement 89 arrives, for example, at the top 69 of the sucker housing 21 located.

Then it is possible that, for example, a control 101 and / or a display element 102 to operate or display at least one function of the suction device 10 For example, to turn on or off, to display a level or the like, with the actual basic unit 20 electrically connected. But it can also be an electrical connection box, for example, a connection 103 for connecting the hand machine tool 300 or another hand-held machine tool, through which the contact arrangements 89 . 89a be supplied with electricity produced electrical connection.

The container tower 70 fits perfectly into the container and workshop system, the other containers 450 and 400 and the vacuum cleaner 280 includes. This becomes clear below.

As far as the components of this system contain the same or similar components, these are provided below and in the drawing with the same reference numerals.

In the area of the upper sides of the sucker housing 21 , the container tower 70 as well as the container 400 . 450 and the vacuum cleaner 280 are first coupling agents 90 provided with the second coupling means 110 interact on the respective undersides of the aforementioned components, except, of course, the vacuum cleaner 280 , its vacuum cleaner housing 281 below by means of rollers 283 can be moved on a ground. Thus, the sucker housing 21 , the container tower 70 , the container 400 . 450 in a stacking direction H are stacked on each other or on the vacuum cleaner 280 be stacked and then there on the basis of the coupling agent 90 . 110 with respect to the stacking direction H tensile strength connected to each other.

The first coupling agents 90 include, for example, in the case of the vacuum cleaner 280 at the top 284 provided holding shots 91 , in the retaining projections 111 the second coupling agent 110 are pluggable. The holding shots 91 are at a recording 285 at the top 284 of the vacuum cleaner 280 provided in the example, the sucker housing 21 can be used with its bottom area. The recording 285 is for example of side walls 287 . 288 bounded on the side, being on the side wall 288 the holding shots 91 are arranged. On the side walls 287 however, there are retaining tabs 92 , which engage with retaining projections 112 the second coupling agent 110 can be brought. The retaining tabs 92 are, for example, sliding or pivoting on the side walls 287 stored.

Thus, z. B. the nipple housing 21 at the top of the vacuum cleaner 280 be attached, but also not described in detail containers 400 . 450 used for transporting, for example, the hand machine tools 300 , tools, accessories and the like are suitable.

The containers 400 . 450 as well as the sucker housing 21 and the container tower 70 However, they are with slightly different components of the coupling agent 90 . 110 coupled together.

The coupling agent 90 include at the top 69 of the sucker housing 21 So on the lid 23 , provided rear engagement shots 93 and support shots 94 , which are used to engage with grasping feet 113 and for supporting feet 114 the other coupling agent 110 serve. At the Hintergreifaufnahmen 93 are Hintergreifkonturen 95 , for the positive retention of complementary Hintergreifkonturen 115 at the rear grip feet 113 serve. The Hintergreifkonturen 95 . 115 are engaged, wherein the respective upper container 400 . 450 or the container attachment 70 down, to the top of the respective lower container, for example, the sucker housing 21 or the sucker housing 21 is pivoted, so that with respect to the axes transverse to the stacking direction H a positive or shear-resistant hold is given.

It is possible to have another container attachment 70 above the container attachment shown in the drawing 70 arranged and with the coupling means 90 . 110 coupled. At the wall section 78 , in front of the rear side wall 74 inside, to the receiving cavity 76 is projecting towards, namely to interact with the Hintergreifkonturen 115 suitable Hintergreifkonturen 95a intended. At the inwardly projecting from the front side wall wall portion 78 are support shots 94a for receiving the support feet 114 ,

The containers 400 . 450 as well as the suction cup housing 21 are similar to the underside of the container top 70 , ie that there the support feet 114 and the hind feet 113 are also provided. On the container 450 are also for engaging the Hintergreifkonturen 115 suitable Hintergreifkonturen 95b intended.

The first coupling agents 90 further comprise a locking element 96 , One locking element each 96 is rotatable by means of a pivot bearing 98 on the lid 23 and the front side wall 72 of the container attachment 70 arranged.

The locking element 96 has an arched seat 97 by turning into engagement with retaining projections 116 and 117 comes. That on the lid 23 arranged locking element 96 is in the the respective upper container or container attachment 70 coupling locking position or coupling position ( 1 ) so that it turned the lid 23 across with the above the lid 23 arranged retaining projection 116 the upper container or container attachment and the example on the base housing 22 or the container attachment 70 above, below the locking element 96 Front arranged retaining projection 117 at the same time engaged. This is the pivot bearing 98 relieved. At the same time the locking element couples 96 the respective containers tensile strength with respect to the stacking direction H.

The coupling between the container attachment 70 and the basic device 20 is so cheap that the lid 23 with saddled container attachment 70 can be opened ( 10 ).

In 12 is a stack consisting of a container 450 on which the sucker housing 21 of the suction device 10 and then again the container attachment 70 are arranged, shown. Upper side is on the container top 70 another container 450 piled up. Through the coupling agent 90 and 110 are the containers 450 as well as the sucker housing 21 of the suction device 10 and the container tower 70 firmly connected. For example, the locking elements 96 of the lower container 450 and the suction device 10 and the container tower 70 adjusted in the respective coupling position.

The following is an advantageous sealing concept for the main filter 49 and a convenient assembly concept for the dirt collector 46 presented

On the wall 121 the nipple housing housing section 120 with the suction unit 24 is a bypass inlet 122 provided for a not visible in the drawing by-pass valve, by the emergency, for. B. with closed suction inlet 100 , the suction unit 24 cooling air into the interior of the housing section 120 can flow in.

The main filter 49 includes a seal 123 as well as a filter surface 124 , The filter surface 124 , which for example comprises a filter fleece or a pleated filter, is in a frame 125 the filter holder 47 added. Front on the frame 125 there is a step 126 that the seal 123 supported on the back. So that's the main filter 49 from the filter holder 47 on his wall 121 opposite side supported on the back, so that the dirt collector 46 from the back, so to speak, on the seal 123 push and this against the wall 121 , So therefore against a suction unit inlet 61 having inlet housing portion 127 , presses. This is the seal 123 close to the wall 121 on, so that the suction flow S from the suction inlet 27 First, the dirt collection room 25 flows through, where usually a filter bag 50 Contains particles, at least the main filter 49 , the frontal in front of the suction unit inlet 61 is arranged, this function is met, so that in principle only clean, at least relatively few particles containing air of the suction flow S in the suction unit inlet 61 a stream.

But even if the density plane between the seal 123 and the inlet housing portion 127 and / or between the seal 123 and the dirt collector 46 not working properly, ie that between a sealing gap 129 between the inlet housing portion 127 and the dirt collector 46 Sub-air N flows in, this is due to the favorable arrangement of the seal 123 whose outer circumference 130 the outer circumference of the main filter 49 represents, unproblematic.

In the dirt collection room 25 there is a negative pressure U when the suction unit 24 is in operation, so there is a vacuum area 131 formed. However, the secondary air N is not from the negative pressure range 131 that is the dirt collection room 25 sucked, but from the environment of the suction device 10 ie from an area with atmospheric pressure. There, the load with particles is much lower, so that at least not or little contaminated with dirt air, namely the secondary air N, in the suction unit inlet 61 flows.

In front of the suction unit inlet 61 there is a protective grid 128 that in front of the wall 121 protrudes. The grid 128 can in the interior of the seal 123 project ( 15 ). Anyway, the seal lies 123 with its front side close to the wall 121 and surrounds the suction unit inlet 61 annular. Appropriately, it is provided that also the bypass inlet 122 in the interior and thus in the flow area of the seal 123 located. This need not be.

For a particularly favorable, tight fit of the seal 123 at the inlet housing area 127 , which in this respect a seal for the seal 123 represents, also provides the tensioning device described below 140 ,

The clamping device 140 comprises a handle as an actuator 141 that by swivel bearings 142 swiveling at the dirt collector 46 is stored, for example, on the side walls 55 . 57 next to the suction flow outlet 60 ,

The carrying handle 141 serves to carry the dirt collector 46 , The carrying handle 141 can be between one to wear Carrying position T ( 17 ), in which the carrying handle 141 up in front of the side walls 55 - 58 protrudes and its base leg 143 can be comfortably gripped by an operator, and a non-use position N ( 16 ), in which the base leg 143 not or only insignificantly upwards in front of the upper edges of the side walls 55 - 58 protrudes. From the base leg 143 stand side legs 144 U-shaped from whose free ends on the pivot bearings 142 are arranged. For example, there are bearing bolts 145 in front of the side walls 55 . 57 before and engage in corresponding bearing receptacles on the side legs 144 of the carrying handle 141 one.

The carrying handle 141 is suitably not in a longitudinal center region of the side walls 55 . 57 hinged so that the housing of the dirt collector 46 when carrying with the carrying handle 141 has a tendency to tilt so that eventually in the dirt collecting 46 do not contain dirt on the main filter 49 presses so that this does not come out of the filter holder 47 is pressed out and holds there well. This tilting tendency is by an arrow 138 in 17 indicated. The bearing concept of the carrying handle 141 So sees a relief of the main filter 49 advantageous before.

The dirt collector 46 can by an operator when he is carrying the handle 141 holds in the container receptacle 45 be used comfortably from above. That's an arrow 146 indicated. Then the carrying handle 141 in the direction of an arrow 147 pivoted, at the same time the clamping device 140 its clamping position P occupies ( 18 ). This presses a clamping surface 148 against an abutment surface 149 of the sucker housing 21 , The abutment surface 149 for example, by a bridge 150 in the area of the container receptacle 45 provided. On opposite sides of the container receptacle 45 is each a jetty 150 provided, namely on the inner sides of the opposite side walls 29 and 31 , In this sense also has the carrying handle 141 one at the side legs 144 one clamping surface each 148 ,

The clamping surface 148 is located on a tension cam 151 facing out in front of each side leg 144 protrudes. The two tension cams 151 and therefore also the clamping surfaces 148 are eccentric to the pivot axis 152 the two pivot bearings 142 around the carrying handle 141 swings.

The bridges 150 . 158 form side walls of a receiving groove 161 for the tension cam 151 , Thus, so the tension cam 151 guided and recorded in this recording groove.

Due to the orientation of the clamping surfaces 148 and the associated abutment surfaces 149 parallel to the face of the seal 123 and the opposite wall 121 , the seal becomes 123 across to the arrow 146 indicated thru axle, along which the dirt collector 46 in the container receptacle 45 is plugged in evenly to the inlet housing area 127 pressed. The corresponding load is indicated by an arrow 139 in 15 indicated. This has the advantageous consequence that the seal 123 very evenly at the opposite sealing seat of the wall 121 is applied and no unwanted tension, tilting or the like undergoes. The clamping device 140 is thus configured to a linear relative adjustment of the components to be clamped together and brought into a sealing contact, namely the inlet housing portion 127 and the face of the seal 123 that should come to the plant. Consequently, the clamping force in the direction of the arrow 139 essentially over the entire circumference of the seal 123 the end face substantially constant.

The clamping device 140 also tightens the dirt collector 46 in the container receptacle 45 ,

In the clamping position P engages a catch 153 a locking device 155 in a snap-in receptacle 154 on the sucker housing 21 one. For example, there is the catch 153 approximately at the base leg 143 of the carrying handle 141 and engages in a corresponding mating contour, for example, an upper edge of the wall 121 , in the sense of a rattle. This is not just the carrying handle 141 , but also the clamping device 140 latched in its clamping position P.

The clamping device 140 at the same time forms or comprises a release device 160 to release the tension of the dirt collector 46 in the container receptacle 45 and the tension between the seal 123 and the inlet housing portion 127 on the tension cam 151 namely, is there a Löseschräge 156 , which when swinging the carrying handle 141 against the arrow direction of the arrow 147 , ie in the direction of a release position L, on a support surface 157 of the sucker housing 21 supported. The support surface 157 lies the abutment surface 149 across from. For example, the support surface 157 on another wall projection or bridge 158 intended. The bridges 158 . 150 lie opposite each other and are, as already mentioned, in the container receptacle 45 inside on the side walls 29 . 31 provided opposite each other.

Another advantage is an insertion bevel 159 provided at the the tension cam 151 with its release amount 156 when inserting the dirt collection 46 in the container receptacle 45 along slides. Thus, so forms the insertion bevel 159 an assembly aid. The insertion bevel 159 is z. B. at the top of the bridge 158 ,

In the 20 - 23 are a first to the clamping device 140 alternative clamping device 240 with a bevel gear and in the 24 - 27 a second alternative tensioning device 340 shown. The clamping devices 240 . 340 are on dirt storage tanks 246 . 346 intended. In the following description and in the 20 - 27 are the same or similar components partially provided with the same and partially already described described reference numerals. The with the clamping devices 240 and 340 provided dirt collection container 246 and 346 correspond to the dirt collecting tank 46 ,

An actuator of the clamping device 240 forming carrying handle 241 has on his from a base leg 243 protruding side legs 244 one groove each 251 into which a bearing bolt 245 a sliding bearing 242 intervenes. The bearing bolts 245 stand sideways from the dirt collector 246 from.

The carrying handle 241 can along a sliding axis 247 linearly up and down between a carrying position T and a non-use position N are moved. In the carrying position T is the carrying handle 241 up in front of the dirt collector 246 before, in the non-use position N, it is closer to the housing of the dirt collection container 246 adjusted, for example, so that he is not or slightly up in front of the cover 34 protrudes when the dirt collector 246 in the sucker housing 21 is included.

The grooves 251 run obliquely with respect to the sliding axis 247 and in this case also with respect to the longitudinal directions of the side legs 244 , The inner walls of the grooves 251 make due to their oblique course an inclined surface arrangement 252 ready.

When the carrying handle 241 is adjusted from the support position T in the non-use position N, he operates the clamping device 240 from the release position L to the clamping position P. The groove slides 251 on the bearing pin 245 along, which represents a backdrop successor or sliding block insofar, with the handle 241 with a clamping surface 248 in the direction of an abutment surface 249 is adjusted. On each side leg 244 is in each case one, provided by its longitudinal narrow side clamping surface 248 available. Every clamping surface 248 is an abutment surface 249 assigned. The abutment surfaces 249 for example, of webs similar to the bridge 150 provided inside the container receptacle 45 protrude. So if the carrying handle 241 is adjusted in the direction of non-use position N, the clamping surfaces 248 against the abutment surfaces 249 strained and thereby exert a force on the main filter 49 in the direction of the suction unit inlet 61 out (in the direction of the arrow 139 ).

At the assigned in the clamping position P longitudinal end of the groove 251 is a recess 254 provided in the bearing bolt 245 engages in the clamping position P. In that regard, the bearing pin 245 and the recess 254 a latching device 255 ,

The clamping device 340 includes a carrying handle 341 , which acts as an actuator for the clamping device 340 serves. On side legs 344 that of a base leg 343 of the carrying handle 341 stand up, are roles 348 a roller assembly 353 rotatably mounted, which is in a clamping position P on an abutment surface 349 support. For example, the abutment surface 349 as well as the abutment surfaces 149 and 249 from a receiving groove or a corresponding web, for example in the manner of the bridge 150 , educated.

The carrying handle 341 is based on pivoting levers 350 at the dirt collector 346 stored. The side legs 344 are for example by means of a respective pivot bearing 345 on a respective pivot lever 350 pivoted. Of course, other joints may be provided. Furthermore, the carrying handle could 341 also on each side leg 344 with, for example, 2 pivoting levers pivotable on the dirt collector 346 be stored.

The swivel levers 350 in turn, turn by means of pivot bearings 342 at the dirt collector 346 stored.

The carrying handle 341 Essentially makes a linear movement between the support position T and the non-use position N by. When adjusting between the support position T and the non-use position N, the two rollers move 348 for example, in the receiving groove 161 back and forth.

The roles 348 rely on the in the 26 and 27 right side of the receiving groove 161 off, for example, on the jetty 150 , If the dirt collector 346 at the bottom of the container receptacle 45 abuts, the actual adjustment of the handle begins 341 from the support position T to the non-use position N, wherein the rollers 348 roll down. At the same time pivot the pivot lever 350 around the pivot bearings 342 , The swivel levers 350 move in the process starting from the in 25 and 26 illustrated upper pivot position in an in 27 illustrated lower pivot position over their dead centers, so that on the support by the rollers 348 a tension in the direction of an arrow 139 is exercised. The seal 123 thereby becomes against the inlet housing portion 127 curious; excited. Thus, thus forms the pivot lever 350 a component of a lever arrangement 352 ,

The clamping devices 240 and 340 At the same time act as a release device when the respective carrying handles 241 and 341 be adjusted to the support position T.

It is understood that other actuators than, for example, the carrying handles 141 - 341 could be provided, for example, a toggle lever assembly, slides, latches, wedges or the like. Furthermore, inclined surfaces could also be provided which act, for example, on the housing of a dirt collecting container. Exemplary is in 15 an oblique surface 360 sketched, for example, on a corresponding mating contour 361 of the dirt collector 46 between the ground 54 and the back wall 56 could work.

It can also carry handles that do not serve as an actuator, be provided for carrying a dirt collector.

Furthermore, the substantially linear plug-and-clamp movement when inserting the dirt collector 46 in the container receptacle 45 as in the embodiments according to 13 - 27 the case, to understand by way of example. It is also conceivable, for example, an embodiment in which the dirt collecting 46 for example, an example in 14 drawn pivot axis 363 in the container receptacle 45 is pivoted, z. B. based on a pivot bearing with bearing pin and bearing mounts to the dirt collector 46 and the container receptacle 45 , in which case, for example, the oblique surfaces at the last movement section 360 and the counter contour 361 in the sense of bracing the main filter 49 with the opposite sealing seat on the inlet housing portion 127 Act. An additional latch, cocking lever or the like can then for a firm grip of the dirt collector 46 in the container receptacle 49 and thus also a tight sealing seat of the main filter 49 on the housing section 120 to care.

QUOTES INCLUDE IN THE DESCRIPTION

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

Cited patent literature

• EP 2229859 A1 [0002, 0048, 0052]

Claims (17)

Mobile suction device ( 10 ), in particular construction site or workshop suction device, a suction cup ( 21 ) and a suction unit arranged therein ( 24 ) for generating a suction flow (S), wherein the suction housing ( 21 ) a suction inlet ( 27 ) for connecting a suction line ( 14 ) and in the sucker housing ( 21 ) the suction unit ( 24 ) upstream a filter assembly ( 26 ) and a dirt collecting space provided for collecting dirt ( 25 ) are arranged, in which by the operation of the suction unit ( 24 ) a negative pressure area ( 131 ), wherein the sucker housing ( 21 ) a dirt collecting container ( 46 ), which the dirt collecting space ( 25 ) and the one with the suction inlet ( 27 ) communicating or forming this inflow opening ( 132 ) for the inflow of the suction flow (S) and a suction flow outlet ( 60 ) for the outflow of air to the suction unit ( 24 ), and wherein the suction flow outlet ( 60 ) of the dirt collecting room ( 25 ) and a suction unit inlet ( 61 ) of the suction unit ( 24 ) via a main filter ( 49 ) of the filter arrangement ( 26 ) for retaining dirt in the dirt collecting space ( 25 ) is in fluid communication, characterized in that an outer circumference ( 130 ) of the main filter ( 49 ) outside the negative pressure range ( 131 ) of the dirt collecting room ( 25 ), so that possibly to the suction flow (S) additional in the suction unit inlet ( 61 ) incoming outside air from outside the dirt collecting space ( 25 ) flows forth. Suction device according to claim 1, characterized in that between the suction unit inlet ( 61 ) and the suction flow outlet ( 60 ) a sealing gap ( 129 ) is present, in which the outer circumference ( 130 ) of the main filter ( 49 ) is arranged. Suction device according to claim 1 or 2, characterized in that the outer circumference ( 130 ) of the main filter ( 49 ) of a seal ( 123 ) formed around a filter surface ( 124 ) of the main filter ( 49 ), wherein the seal ( 123 ) expediently cohesively with the filter surface ( 124 ) connected is. Suction device according to one of the preceding claims, characterized in that it comprises a clamping device, in particular comprising a clamping mechanism ( 140 - 340 ) for clamping the main filter ( 49 ) between the suction flow outlet ( 60 ) and an inlet housing area ( 127 ) of the sucker housing ( 21 ), on which the suction unit inlet ( 61 ), the main filter ( 49 ) in a clamping position (P) of the clamping device ( 140 - 340 ) between the suction flow outlet ( 60 ) and the inlet housing area ( 127 ) is braced. Suction device according to claim 4, characterized in that the tensioning device ( 140 - 340 ) is configured to a linear relative adjustment of the components to be clamped together, so that an end face, in particular the seal ( 123 ), the main filter ( 49 ) with the associated sealing seat on the inlet housing portion ( 127 ) or the dirt collecting container ( 46 ) is loaded evenly over its entire surface area uniformly with clamping force. Suction device according to claim 4 or 5, characterized in that the tensioning device ( 140 - 340 ) comprises a lever arrangement comprising at least one lever arm ( 352 ), in particular a toggle lever arrangement, and / or an inclined surface arrangement ( 252 ) with at least one clamping bevel and / or a roller arrangement ( 353 ) for adjusting the main filter ( 49 ) in the clamping position (P). Suction device according to one of claims 4 to 6, characterized in that it comprises a latching device ( 155 ) for locking the clamping device ( 140 - 340 ), in particular an actuating element of the clamping device ( 140 - 340 ), in the clamping position (P). Suction device according to one of the preceding claims, characterized in that it has a release device ( 160 ) for releasing the main filter ( 49 ) from the inlet housing area (FIG. 127 ) or the dirt collecting container ( 46 ) having. Suction device according to claim 8, characterized in that the release device ( 160 ) at least one release amount ( 156 ) and / or acting in the sense of a release lever arrangement ( 352 ) and / or of the or a tensioning device ( 140 - 340 ) is formed. Suction device according to one of the preceding claims, characterized in that it has a carrying handle ( 141 - 341 ), in particular in the form of a hanger or handle, for carrying the dirt collecting container ( 46 ) having. Suction device according to claim 10, characterized in that the carrying handle ( 141 - 341 ) outside one of a geometric center of gravity of the dirt collection container ( 46 ) at the dirt collecting container ( 46 ), so that the dirt collecting container ( 46 ) when carrying with the carrying handle ( 141 - 341 ) a tendency to a main filter ( 49 ) has relieving tilting and the main filter ( 49 ) higher than a lowest point of the dirt collecting room ( 25 ) lies. Suction device according to claim 10 or 11, characterized in that the carrying handle ( 141 - 341 ) as an actuator for actuating the Clamping device ( 140 - 340 ) and / or the release device ( 160 ), whereby the carrying handle ( 141 - 341 ) expediently acts as a lever arm or on a lever arm ( 350 ) is pivotally mounted and / or the carrying handle ( 141 - 341 ) at least one inclined surface of an inclined surface arrangement ( 252 ) or cooperates with an inclined surface. Suction device according to one of the preceding claims, characterized in that solid walls ( 55 - 58 . 54 ) of the dirt collecting container ( 46 ) and / or a lid ( 23 ) the dirt collecting space ( 25 ), so that the dirt collecting space ( 25 ) during operation of the suction device ( 10 ) except for the inflow opening ( 132 ) and the suction flow outlet ( 60 ) closed is. Suction device according to one of the preceding claims, characterized in that the dirt collecting container ( 46 ) an integral part of the sucker housing ( 21 ) or the dirt collecting container ( 46 ) for removing in the dirt collecting space ( 25 ) accumulated dirt from the sucker housing ( 21 ) is removable. Suction device according to one of the preceding claims, characterized in that the main filter ( 49 ) on one of the suction unit ( 24 ) housing section ( 120 ) of the sucker housing ( 21 ), wherein the housing section ( 120 ) and the dirt collector ( 26 ) can be brought into flow communication with each other. Suction device according to one of claims 1 to 14, characterized in that the main filter ( 49 ) is arranged on the dirt collecting container, so that when removing the dirt collecting container ( 46 ) from the sucker housing ( 21 ) Will get removed. Suction device according to one of the preceding claims, characterized in that the outer circumference ( 130 ) of the main filter in the manner of a frame around the one part of the dirt collecting container ( 46 ) forming suction flow outlet ( 60 ).

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