Abstract
A disposal bag for a vacuuming device, wherein the disposal bag has a pressure equalization matrix. The pressure equalization matrix has openings that are designed to effect pressure equalization between a first region and a second region of a collecting tank of the vacuuming device. The vacuuming device can preferably be a construction site vacuum cleaner, wherein the collecting tank of the vacuuming device is designed to receive the disposal bag and the dust sucked in by the vacuuming device is collected and contained in the disposal bag. A method for producing a disposal bag, and to the use thereof in a vacuuming device is also provided.
Claims
1-11. (canceled)
12. A disposal bag for a vacuuming device having a collecting tank for receiving the disposal bag, the disposal bag comprising: a pressure equalization matrix having openings configured to effect pressure equalization between a first region and a second region of the collecting tank.
13. The disposal bag as recited in claim 12 wherein the openings are punched openings.
14. The disposal bag as recited in claim 12 wherein the openings each have a collar protruding into the second region.
15. The disposal bag as recited in claim 12 wherein the openings are circular and have a diameter in a range from 0.1 to 10 mm.
16. The disposal bag as recited in claim 15 wherein the diameter is in a range from 0.3 to 5 mm.
17. The disposal bag as recited in claim 16 wherein the diameter is in a range from 0.4 to 2.0 mm.
18. The disposal bag as recited in claim 17 wherein the diameter is in a range from 0.5 to 1.5 mm.
19. The disposal bag as recited in claim 12 wherein the pressure equalization matrix includes pressure equalization matrix regions arranged in an upper region of the disposal bag.
20. The disposal bag as recited in claim 19 wherein the pressure equalization matrix regions include the openings arranged as columns and rows.
21. The disposal bag as recited in claim 20 wherein the columns or rows are arranged with respect to one another such that the openings are arranged alongside one another.
22. The disposal bag as recited in claim 20 wherein the columns or rows are arranged in an offset manner with respect to one another.
23. The disposal bag as recited in claim 20 wherein the pressure equalization matrix regions have a rectangular basic shape, individual side lengths of the rectangular basic shape being in the range from 1 to 15 cm.
24. The disposal bag as recited in claim 23 wherein the individual side lengths are in a range from 2 to 10 cm.
25. The disposal bag as recited in claim 24 wherein the individual side lengths are in a range from 3 to 7 cm.
26. The disposal bag as recited in claim 25 wherein the individual side lengths measure 4 cm.
27. The disposal bag as recited in claim 12 wherein the pressure equalization matrix is arranged peripherally in an upper region of the disposal bag.
28. The disposal bag as recited in claim 12 wherein the disposal bag is a construction site vacuum cleaner disposal bag.
29. A method for producing the disposal bag as recited in claim 12, the method comprising the steps of: a) providing a starting material for producing the disposal bag; b) introducing the openings into the starting material, wherein the openings form the pressure equalization matrix; and c) joining together the starting material to form a finished disposal bag.
30. A method for employing the disposal bag as recited in claim 12 in a vacuuming device for collecting dust, the method comprising: pressure equalizing a first region and a second region of a collecting tank of the vacuuming device via the disposal bag.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Further advantages will become apparent from the following description of the figures. The figures, the description and the claims contain numerous features in combination. A person skilled in the art will expediently also consider the features individually and combine them to form useful further combinations.
[0031] In the figures, identical and similar components are denoted by the same reference signs. In the figures:
[0032] FIG. 1 shows a side view of a preferred embodiment of the vacuuming device in the open state
[0033] FIG. 2 shows a side view of a preferred embodiment of the vacuuming device in the closed state (operating state of the vacuuming device)
[0034] FIG. 3 shows an illustration of a preferred embodiment of the disposal bag with a pressure equalization band
[0035] FIG. 4 shows an illustration of a preferred embodiment of a pressure equalization matrix region with lines of columns and rows arranged alongside one another
[0036] FIG. 5 shows an illustration of a preferred embodiment of a pressure equalization matrix with lines of columns and rows arranged alongside one another
[0037] FIG. 6 shows an exemplary illustration of a preferred embodiment of a pressure equalization matrix region with lines of columns and rows arranged in an offset manner with respect to one another
DETAILED DESCRIPTION
[0038] FIG. 1 shows a side view of a preferred embodiment of the vacuuming device (3) in the open state. In the open state of the vacuuming device (3), the suction head (4) and the collecting tank (5) of the vacuuming device (3) are separated from one another. If the suction head (4) is fastened to the collecting tank (5) in a hinged manner, there can be a hinged connection between the suction head (4) and the collecting tank (5) in the open state of the vacuuming device (3), this hinged connection being formed for example by a hinged joint or a hinge. In other embodiments, the suction head (4) can simply be lifted off or removed from the dust collecting tank (5).
[0039] In the open state of the vacuuming device (3), the disposal bag (2) can be inserted into the collecting tank (5). In particular, a part-region of the disposal bag (2) is placed over the edge of the collecting tank in order to fasten or fix the disposal bag (2). As a result of the disposal bag (2) being inserted, different spatial regions (8, 9) are created in the collecting tank (5) of the vacuuming device (3), these corresponding to different pressure regions during operation of the vacuuming device (3). In the context of the invention, it is particularly preferred for the ambient pressure of the vacuuming device (3) to prevail in the first region (8) in the collecting tank (5), while a negative pressure prevails in the second region (9) of the collecting tank (5), this being generated by the turbine of the vacuuming device (3) during operation of the vacuuming device (3) and sucking the suction medium containing dust (13) (see, e.g, FIG. 2) into the vacuuming device (3). Preferably, the second region corresponds to the interior of the disposal bag (2), while the first region (8) is formed between the outer side of the disposal bag (2) and an inner side of the collecting tank (5).
[0040] FIG. 2 shows a side view of a preferred embodiment of the vacuuming device (3) in the closed state, wherein the closed state corresponds to the operating state of the vacuuming device (3). In the closed state of the vacuuming device (3), the suction head (4) is present on the collecting tank (5), while the disposal bag (2) is present in the collecting tank (5). Edges of the disposal bag (2) can, as illustrated in FIG. 2, protrude beyond the edge of the collecting tank (5).
[0041] The pressure equalization takes place preferably between the first region (8) and the second region (9) of the collecting tank. The pressure equalization is indicated in FIG. 2 by the dashed arrow, which points from the first region (8) to the second region (9). The direction of the arrow indicates that the pressure equalization takes place in that a fluid passes from the first region (8) into the second region (9). A fluidic connection between the two regions (8, 9) is provided advantageously by the openings (6) in the pressure equalization matrix (1). In the context of the invention, it is very particularly preferred for the pressure equalization between the first region (8) and the second region (9) to take place in that a fluid, for example a gas mixture, in particular air, passes from the first region (8) into the second region (9). The direction of the gas or air flow, which preferably effects the pressure equalization, results from the pressure gradient that exists between the first region (8) and the second region (9). In particular, during operation of the vacuuming device (3), atmospheric pressure prevails between the side walls of the collecting tank and the disposal bag (2), while a negative pressure prevails in the interior of the disposal bag (2). During operation of the vacuuming device (3), dust (13) can collect in the disposal bag (2). This dust is symbolized in FIG. 2 by the dotted, gray region in the lower region of the disposal bag (2) or of the collecting tank (5).
[0042] FIG. 3 shows an illustration of a preferred embodiment of the disposal bag (2) having a pressure equalization matrix (1), which is formed in the example illustrated in FIG. 3 by a pressure equalization band. In the configuration illustrated in FIG. 3 of the proposed disposal bag (2), the pressure equalization matrix (1) is arranged substantially peripherally in an upper region (10) of the disposal bag (2). In the example illustrated in FIG. 3, a front side or a rear side of the bag (2) is illustrated, in the upper region (10) of which a peripheral band-like grid with pressure equalization openings (6) extends. The pressure equalization openings (6) can be arranged for example in the form of a grid or in the form of a table, i.e. arranged in columns (11) and rows (12) (see, e.g, FIG. 4).
[0043] FIG. 4 shows an illustration of a preferred embodiment of a pressure equalization matrix region (7) with lines of columns and rows arranged alongside one another. For example, the pressure equalization matrix region (7) illustrated in FIG. 4 has nine columns (11) and eight rows (12), which are arranged substantially parallel and perpendicularly to one another. Preferably, the pressure equalization openings (6) are arranged in each case alongside one another in the rows (12) and columns (11). The pressure equalization matrix (1) may comprise a line of individual pressure equalization matrix regions (7), which may be present in a spaced-apart manner, preferably in the upper region (10) of the disposal bag (2). Preferably, the pressure equalization matrix regions (7) form the pressure equalization matrix (1). The individual pressure equalization matrix regions (7) may have for example a rectangular or square shape, as illustrated in FIG. 4. The double-headed arrows beneath and to the side of the pressure equalization matrix region (7) indicate the side lengths of the pressure equalization matrix region (7). The lateral edges may have different lengths (rectangular shape) or be substantially the same length (square shape). However, any other geometric shape which allows an arrangement of pressure equalization openings (6) as pressure equalization matrices (1) is also conceivable. When the pressure equalization matrix region (7)—as in FIG. 4—has a substantially square basic shape, a side length of the pressure equalization matrix region (7) can be for example 4 cm.
[0044] FIG. 5 shows an illustration of a preferred embodiment of a pressure equalization matrix (1) with columns (11) and rows (12) arranged alongside one another. The exemplary embodiment of the invention illustrated in FIG. 5 is a prototype implementation of the design example illustrated in FIG. 4. Accordingly, the pressure equalization matrix (1) illustrated in FIG. 5 has nine columns (11) and eight rows (12), which are arranged substantially parallel and perpendicularly to one another. FIG. 5 shows in particular a picture of the upper or outer side of the disposal bag (2). This is preferably that side of the disposal bag (2) that faces the inner wall of the collecting tank (5) in the inserted state. FIG. 5 does not show that side of the disposal bag (2) that forms the interior of the disposal bag (2). However, it is apparent from FIG. 5 how collars (14) extend away from the plane of the illustration into the interior of the openings (6). In the inserted state of the disposal bag (2), these collars (14) point into the second region (9) of the collecting tank (5). In other words, the collars (14) point into the interior of the disposal bag (2), in which the dust (13) that is drawn in by the vacuuming device (3) collects. Since the collars (14) of the openings (6) in the pressure equalization matrix (1) extend inwardly into the interior of the disposal bag (2), an undesired escape of dust (13) from the disposal bag (2) into the environment or into the collecting tank (5) of the vacuuming device (3) is effectively prevented. In particular, as a result of the collar-like configuration of the pressure equalization openings (6), it is possible to dispense with the provision of a costly filter fleece for reducing the escape of dust. Furthermore, during the production of the proposed disposal bag (2) no or little waste occurs, since the material that is pressed out of the starting material for the disposal bag (2) when the openings (6) are punched is used to create the collars (14). As a result, the production of the proposed disposal bag (2) is particularly low in costs and resources.
[0045] FIG. 6 shows an exemplary illustration of a preferred embodiment of a pressure equalization matrix region (7) with columns (11) and rows (12) arranged in an offset manner with respect to one another. The black spheres in FIG. 6 are intended to symbolize the pressure equalization openings (6) that form the pressure equalization matrix (1). It is clearly apparent in the exemplary illustration in FIG. 6 that the openings (6) are arranged in columns (11) and rows (12), wherein the columns (11) and rows (12) are arranged in an offset manner with respect to one another. This means that individual openings (6) are specifically not arranged alongside one another, but rather are arranged in a staggered manner with respect to one another.
LIST OF REFERENCE SIGNS
[0046] 1 Pressure equalization matrix [0047] 2 Disposal bag [0048] 3 Vacuuming device [0049] 4 Suction head [0050] 5 Collecting tank [0051] 6 Openings [0052] 7 Pressure equalization matrix region [0053] 8 First region [0054] 9 Second region [0055] 10 Upper region of the disposal bag [0056] 11 Columns [0057] 12 Rows [0058] 13 Dust/suction medium [0059] 14 Collar
