Abstract
A device for introducing openings into a disposal bag for a vacuuming device, wherein the vacuuming device has a suction head and a collecting tank. The includes components that are configured in a manner corresponding to one another, wherein the components of the device that are configured in a manner corresponding to one another include an open structure, wherein the open structure is designed to effect pressure equalization between a first region and a second region of the collecting tank. Within the meaning of the invention, it is preferred for the proposed device to include a punch and a die, wherein the punch is arranged in the suction head and the die is arranged in the collecting tank. In a second aspect, the invention relates to a vacuuming device that includes at least one proposed device. In a further aspect, the invention relates to a method for introducing openings into a disposal bag for a vacuuming device.
Claims
1-13. (canceled)
14: A device for introducing openings into a disposal bag for a vacuuming device, the vacuuming device having a suction head and a collecting tank, the device comprising: components configured in a manner corresponding to one another, the components including an open structure designed to effect pressure equalization between a first region and a second region of the collecting tank.
15: The device as recited in claim 14 wherein the components include a punch and a die, the punch being arranged in the suction head and the die being arranged in the collecting tank.
16: The device as recited in claim 14 wherein the first region is formed between a wall of the collecting tank and the disposal bag and the second region corresponds to an interior of the disposal bag.
17: The device as recited in claim 15 wherein atmospheric pressure prevails in the first region and a negative pressure prevails in the second region during operation of the vacuuming device.
18: The device as recited in claim 14 wherein the device is designed to introduce openings into the disposal bag when the suction head is fitted on the collecting tank.
19: The device as recited in claim 15 wherein the punch has a rectangular cross-sectional shape.
20: The device as recited in claim 15 wherein the punch is formed by a hollow body formed in a shape of a wedge in a lower region.
21: The device as recited in claim 15 wherein the punch has sharpened edges in a lower region.
22: The device as recited in claim 15 wherein the die has a rectangular cross-sectional shape.
23: The device as recited in claim 22 wherein the die is formed by a hollow body open on one of four sides.
24: The device as recited in claim 15 wherein the punch has an opening in a side wall.
25: A vacuuming device comprising the device as recited in claim 14.
26: A method for introducing openings into a disposal bag for a vacuuming device, the method comprising the following steps: a) providing a vacuuming device having a suction head, a collecting tank, and the device as recited in claim 14, b) inserting a disposal bag into the collecting tank of the vacuuming device, c) closing the vacuuming device, and d) introducing the openings into the disposal bag by moving the punch and the die together.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0035] In the figures, identical and similar components are denoted by the same reference signs. In the figures:
[0036] FIG. 1 shows a side view of a preferred embodiment of the punching device
[0037] FIGS. 2A and 2B show oblique views of various preferred embodiments of the punch and die
[0038] FIG. 3 shows a side view of a preferred embodiment of the vacuuming device in the open state
[0039] FIG. 4 shows a side view of a preferred embodiment of the vacuuming device in the closed state (operating state of the vacuuming device)
DETAILED DESCRIPTION
[0040] FIG. 1 shows a preferred embodiment of a proposed punching device (1). In particular, FIG. 1 shows a side view of a punch (6) and a die (7), which together form a punching device (1) in the context of the invention. The punch (6) and die (7) are configured preferably in a manner corresponding to one another and each have a hollow cylinder (10, 11) as basic shape. In the context of the invention, the term “corresponding to one another” means preferably that the punch (6) can be inserted into the die (7), since the punch (6) is slightly smaller than the die (7). Preferably, the punch (6) and die (7) are configured in a manner coordinated with one another; in the context of the invention, they are also referred to preferably as “components” of the punching device (1) that are “configured with respect to one another”; in the context of the invention, they are also referred to preferably as “components” of the punching device (1) that are “configured with respect to one another”. The hollow cylinders (10, 11), which preferably form the punch (6) and the die (7), have preferably a rectangular base and are matched to one another in terms of size such that the punch (6) can pass into the die (7). In other words, it is possible for the hollow cylinder (10) that forms the punch (6) to be configured in a somewhat smaller manner than the hollow cylinder (11) that forms the die (7) of the punching device (1). In particular, the die hollow cylinder (11) has somewhat longer side edges, such that the punch (6) can be inserted into the die (7) when the vacuuming device (3) is closed. The punch (6) of the punching device (1) is present on the suction head (4) of the vacuuming device (3), while the die (7) is part of the lower part of the vacuuming device (3). Preferably, the lower part comprises in particular the dust collecting tank (5) of the vacuuming device (3). It may also be preferred in the context of the invention for the punch (6) and/or the die (7), or the hollow cylinders (10, 11) of which they are formed, to have a semicircular, elliptical or oval base or a base with some other shape.
[0041] The hollow cylinder (10) that forms the punch (6) may be in the shape of a wedge (15) in its lower region. In the context of the invention, this means preferably that the hollow cylinder (10) is configured in a longer manner on one side than on an opposite side. Preferably, the hollow cylinder (10) has, on its longer side, a lowest point, which forms the tip of the wedge (15). Preferably, this lowest point can be arranged either on the front side (13) or on the rear side (14) of the hollow cylinder (10). Corresponding configurations of the punch (6) are illustrated in FIGS. 2a and 2b. The punch (6) can pierce the material of the disposal bag (2) by way of the tip or the lowest point of the wedge (15) and in this way create the pressure-equalization opening.
[0042] When a fresh disposal bag (2) is intended to be inserted into the dust collecting tank (5) of the vacuuming device (3), the disposal bag (2) is placed over the edge of the dust collecting tank (5). The vacuuming device (3) is in the open state when the disposal bag (2) is inserted, as illustrated in FIG. 3. When the vacuuming device (3) is closed, the punch (6) moves downward and moves into the die (7). This creates, in the material of the disposal bag (2), a hole or opening through which pressure equalization between the first region (8) and the second region (9) in the collecting tank (5) of the vacuuming device (3) can take place when the vacuuming device (3) is in operation.
[0043] FIGS. 2A and 2B show oblique views of various preferred embodiments of the punch (6) and die (7). The punch (6) can consist of a hollow cylinder (10) that has an opening (12) on its front side (13). The opening (12) can be continuous (cf. FIG. 2a) or non-continuous (cf. FIG. 2b). It can be formed by a gap (cf. FIG. 2a) or have a different shape (cf. FIG. 2b). Preferably, the opening (12) in the front side (13) of the punch (6), together with the open side of the hollow cylinder (11) that forms the die (7), contributes to the open structure of the punching device (1). The open structure of the punching device (1) allows the pressure equalization between the first region (8) and the second region (9) in the collecting tank (5) of the vacuuming device (3), which is indicated by the dashed arrows in FIG. 4. In particular, the open structure of the punching device (1) creates a fluidic connection between the different pressure regions (8, 9) that arise when the vacuuming device (3) is in operation. In particular a negative pressure in the second region (9) and an atmospheric pressure in the first region (8) of the collecting tank (5) oppose one another.
[0044] The hollow cylinder (10) that forms the punch (6) can be in the shape of a wedge (15), wherein the wedge (15) can be arranged on the front side (13) (cf. FIG. 2b) or on the rear side (14) of the punch (6) (cf. FIG. 2a). The lower edges of the wedge (15), or of the hollow cylinder (10) that forms the punch (6), can be configured in a straight (cf. FIG. 2a) or curved manner (cf. FIG. 2b). In the context of the invention, it is preferred for the lower edges of the wedge (15), or of the punch (6), to be sharpened such that they cut through the material of the disposal bag (2) in a particularly simple and uncomplicated manner.
[0045] The hollow cylinder (11) that forms the die (7) can be configured in a closed manner on three sides and have an open side. This open side can preferably be the front side (13) of the die (7). In the closed state, the front side (13) of the die (7) preferably faces the interior of the collecting tank (5) of the vacuuming device (3), while the rear side (14) of the die (7) is fastened to an inner side of a side wall of the collecting tank (5) of the vacuuming device (3).
[0046] FIG. 3 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). The proposed punching device (1) is configured preferably in at least two parts, wherein it comprises at least one punch (6) and one die (7). The punch (6) is present in the suction head (4) and the die (7) is fastened in or on the collecting tank (5) of the vacuuming device (3). 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 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).
[0047] FIG. 4 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). When the vacuuming device (3) is closed, the suction head (4) and the collecting tank (5) are moved toward one another, with the result that the punch (6) of the punching device (1) is inserted into the die (7). The intact standard disposal bag (2) initially rests on the die (7) and is pierced or perforated by the punch (6) of the punching device (1) when the vacuuming device (3) is closed, with the result that an opening in the disposal bag (2) is created. Preferably, the number of openings created corresponds to the number of punching devices (1) that are present. If for example two punching devices (1) are present on the vacuuming device (3), it is preferred in the context of the invention for two openings to be created for pressure equalization. The pressure equalization takes place preferably between the first region (8) and the second region (9) of the collecting tank. This is indicated in FIG. 4 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 open structure of the punching device (1), which is formed in particular by the opening (12) in a front side (13) of the punch (6) and an open side in the hollow cylinder (11) that forms the die (7) of the punching device (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 can collect in the disposal bag (2). This dust is symbolized in FIG. 4 by the dotted, gray region.
LIST OF REFERENCE SIGNS
[0048] 1 Punching device [0049] 2 Disposal bag [0050] 3 Vacuuming device [0051] 4 Suction head [0052] 5 Collecting tank [0053] 6 Punch [0054] 7 Die [0055] 8 First region [0056] 9 Second region [0057] 10 Hollow cylinder that forms the punch [0058] 11 Hollow cylinder that forms the die [0059] 12 Opening [0060] 13 Front side of punch or die [0061] 14 Rear side of punch or die [0062] 15 Wedge
