Holding plate for a vacuum cleaner bag for a vacuum cleaner, vacuum cleaner bag with a holding plate and method for producing a holding plate for a vacuum cleaner bag

Abstract

Holding plate (100) for a vacuum cleaner bag for a vacuum cleaner, wherein the holding plate (100) has at least the following features: - a retaining plate opening (105); - a sealing element (110) which is arranged to extend at least partially around the holding plate opening (105); - a closure flap (115) which is shaped to at least partially close the holding plate opening (105) in a closed position; and - a sealing edge element (120) arranged on the closure flap (115), which in the closed position of the closure flap (115) is arranged between the sealing element (110) and the closure flap (115) in such a way that a prestress is generated between at least a partial area of ​​the sealing edge element (120) and the sealing element (110) in order to prevent at least one particle from passing through the holding plate opening (105), the sealing edge element (120) is C-shaped.

Description

[0001] The approach presented here relates to a holding plate for a vacuum cleaner bag for a vacuum cleaner, a vacuum cleaner bag with a holding plate and a method for producing a holding plate for a vacuum cleaner bag.

[0002] In vacuum cleaner bags with closure systems, whose retaining plates feature a so-called hygiene closure in the form of a flap, the closure primarily serves to close the suction opening or the retaining plate opening in the retaining plate after the dust bag has been removed from the vacuum cleaner, preventing dust, especially harmful fine dust, from trickling out of the opening. Furthermore, the closure also serves to prevent granules filled into the unused vacuum cleaner bag from trickling out. The granules serve, for example, to absorb unpleasant odors or prevent the formation of germs within the vacuum cleaner bag.

[0003] DE10 2007 040 417 A1 describes a vacuum cleaner bag with a retaining plate and a closure flap. To achieve an improved seal between the closure flap and the bag inlet opening when closed, a soft plastic seal is located between the bag inlet opening and the closure flap.

[0004] DE 20 2006 017 084 U1 discloses a retaining plate with a retaining plate opening and a sealing element arranged circumferentially around the retaining plate opening. The retaining plate also has a closure flap that closes the retaining plate opening in one position. A closure body is arranged circumferentially on the closure flap, which rests against the sealing element when the closure flap is in the closed position. A disadvantage of this closure body is that it does not ensure uniform contact pressure between the closure flap and the sealing element.

[0005] The approach presented here is based on the task of creating an improved holding plate for a vacuum cleaner bag for a vacuum cleaner, an improved vacuum cleaner bag with a holding plate and a method for producing an improved holding plate for a vacuum cleaner bag.

[0006] According to the invention, this object is achieved by a retaining plate for a vacuum cleaner bag for a vacuum cleaner, furthermore, a vacuum cleaner bag with a retaining plate, and finally, a method for producing a retaining plate for a vacuum cleaner bag with the features and steps of the main claims. Advantageous embodiments and further developments of the approach emerge from the following subclaims.

[0007] A holding plate for a vacuum cleaner bag for a vacuum cleaner has at least one holding plate opening, a sealing element, a closure flap, and a sealing edge element. The sealing element is arranged to extend at least partially around the holding plate opening. The closure flap is shaped to at least partially close the holding plate opening in a closed position. The sealing edge element is arranged on the closure flap and, in the closed position of the closure cap, is arranged between the sealing element and the closure flap in such a way that a prestress is generated between at least a partial region of the sealing edge element and the sealing element in order to prevent at least one particle from passing through the holding plate opening.

[0008] The advantages achievable with the approach presented here are that a retaining plate of the type presented here can ensure that no particles can pass through the retaining plate opening. Without the sealing edge element presented here, a gap could remain between the retaining plate opening and the closure flap even when the closure flap is in the closed position. This gap can, for example, already arise in unused vacuum cleaner bags due to warping of individual components of the retaining plate, whereby particles in the vacuum cleaner bag could escape from the retaining plate opening through the gap to the outside. These particles can be activated carbon particles arranged in the vacuum cleaner bag to prevent odor formation and / or germ formation in the vacuum cleaner bag.The sealing edge element, on the other hand, can advantageously create the necessary preload between the sealing edge element and the sealing element to keep the retaining plate opening closed even if the retaining plate components are distorted. This prevents particles from escaping from or entering the vacuum cleaner bag.

[0009] The sealing edge element can be arranged at least partially on an edge of the closure flap. This allows the sealing edge element to ideally contact a sealing element arranged circumferentially around the retaining plate opening.

[0010] According to an advantageous embodiment, the sealing edge element can be arranged on a cover side of the closure flap, wherein the cover side is arranged facing away from the vacuum cleaner bag when the retaining plate is in the operational state. Since a gap as described above can arise, in particular, due to the closure flap protruding obliquely into the retaining plate opening, it is advantageous if the sealing edge element is arranged on the cover side to fill this gap.

[0011] Since the closure flap can protrude particularly deeply into the holding plate opening in the region of a fastening device that fastens the closure flap to a support plate of the holding plate that has the holding plate opening, it is also advantageous if the sealing edge element is C-shaped. C-shaped means an annular or circular arrangement with a notch, recess, or gap. The sealing edge element preferably has the greatest height at the ends facing the recess. In a contact region of the closure flap opposite the fastening device, which does not protrude into the holding plate opening but rests against the sealing element, no sealing edge element is necessary. A center of the C-shaped sealing edge element can advantageously be arranged facing the fastening device, wherein at least one end of the C-shaped sealing edge element can be arranged facing the contact region.The fastening device can be formed as a hinge.

[0012] To ideally fill the gap, the height of the C-shaped sealing edge element can be greatest in the center of the C-shaped sealing edge element and smaller in the area of ​​at least one end of the C-shaped sealing edge element. The height can become progressively smaller toward both ends of the C-shaped sealing edge element.

[0013] The height of the sealing edge element can be 0.5 mm to 5 mm in order to prevent the sealing element from becoming trapped between an inlet nozzle of the vacuum cleaner and the sealing edge element when the vacuum cleaner bag is held in the vacuum cleaner with the holding plate.

[0014] If a difference between a thickest and a thinnest point of the sealing edge element in the plane of the closure cap in a transition area in which the sealing edge element extends away from the closure flap is between 1 and 10 mm, such a small increase can prevent dust that is to be expected during operation of the vacuum cleaner from settling in this transition area.

[0015] The closure flap and / or the sealing edge element can also or alternatively have at least partially a smooth and / or polished surface in an inflow area where the sealing edge element extends away from the closure flap. The inflow area can include the transition area and an adjacent area of ​​the closure flap. A smooth surface can also prevent dust, which is expected during operation of the vacuum cleaner, from accumulating in this inflow area.

[0016] If the wall thickness of the sealing edge element essentially corresponds to the wall thickness of the closure flap, no material accumulation occurs.

[0017] A vacuum cleaner bag has a retaining plate, which is embodied in an embodiment presented here. The retaining plate can be attached to a bag of the vacuum cleaner bag in such a way that the sealing edge element prevents at least one particle from passing through the retaining plate opening into the bag and / or out of the bag when the closure cap is in the closed position. A vacuum cleaner bag presented here can serve as a replacement for known vacuum cleaner bags, wherein with the vacuum cleaner bag presented here, advantageously, no particle can pass into or out of the bag through the retaining plate opening.

[0018] A method for producing a retaining plate comprises at least the following steps: - Providing at least one component of the retaining plate with at least one retaining plate opening, a sealing element arranged at least partially circumferentially around the retaining plate opening, and a closure flap formed to at least partially close the retaining plate opening in a closed position; and - Attaching a sealing edge element to the closure flap, wherein the sealing edge element is attached to the closure flap in such a way that the sealing edge element is arranged between the sealing element and the closure flap in the closed position of the closure flap in such a way that a prestress is generated between at least a partial area of ​​the sealing edge element and the sealing element in order to prevent at least one particle from passing through the holding plate opening.

[0019] Using such a process, one of the retaining plates described above can be manufactured technically simply and cost-effectively. During the attachment step, the sealing edge element can be injection-molded. The sealing edge element can also be glued to the closure flap during the attachment step.

[0020] Examples of the approach are shown purely schematically in the drawings and are described in more detail below. Fig. 1 a schematic plan view of a holding plate for a vacuum cleaner bag according to an embodiment; Fig. 2 a cross section of a holding plate according to an embodiment; Fig. 3 a cross section of a holding plate according to an embodiment; Fig. 4 a schematic plan view of a retaining plate without a sealing element according to an embodiment; Fig. 5 a cross section of a holding plate according to an embodiment; Fig. 6 a cross section of a holding plate according to an embodiment; Fig. 7 a schematic plan view of a retaining plate without a sealing element according to an embodiment; Fig. 8 to 14 each show a section of a cross section of a holding plate according to an embodiment; and Fig. 15 is a flowchart of a method for producing a holding plate for a vacuum cleaner bag according to an embodiment.

[0021] Fig. 1 shows a schematic plan view of a holding plate 100 for a vacuum cleaner bag according to an embodiment.

[0022] The holding plate 100 has at least one holding plate opening 105, a sealing element 110, a closure flap 115, and a sealing edge element 120. According to this exemplary embodiment, the sealing element 110 is arranged circumferentially around a round holding plate opening 105. The closure flap 115 at least partially closes the holding plate opening 105 in a closed position of the closure flap 115, as shown here. The sealing edge element 120 is arranged on the closure flap 115 and, in the closed position of the closure cap shown here, between the sealing element 110 and the closure flap 115 in such a way that a prestress is generated between at least a partial region of the sealing edge element 120 and the sealing element 110, thereby preventing at least one particle from passing through the holding plate opening 115.

[0023] Optionally, the holding plate 100 has a carrier plate 125 in which the holding plate opening 115 is arranged, a fastening device 130 and a contact area 135.

[0024] The fastening device 130 is designed to fasten the closure flap 115 to the carrier plate 125 of the holding plate 100. According to this exemplary embodiment, the fastening device 130 is shaped as a hinge. According to this exemplary embodiment, the contact region 135 is a region of the closure flap 115 arranged opposite the fastening device 130 and which does not have the sealing edge element 120.

[0025] According to this exemplary embodiment, the sealing edge element 120 is C-shaped, with a center of the C-shaped sealing edge element 120 facing the fastening device 130 and two ends 140, 145 of the sealing edge element 120 facing the contact area 135. The sealing edge element 120 disappears in the contact area 135 itself. According to this exemplary embodiment, the C-shaped sealing edge element 120 is arranged, except in the contact area 135, to extend circumferentially around an edge of the closure flap 115. In this case, the sealing edge element 120 is arranged on a cover side 150 of the closure flap 115, with the cover side 150 facing away from the vacuum cleaner bag when the holding plate 100 is in the operational state. The sealing edge element 120 therefore extends away from the closure flap 115 and towards the sealing element 110.C-shaped means that the annular sealing edge element 120 is notched or has a gap or interruption in the area of ​​the hinge 130. The sealing edge element has the greatest height at the two ends closest to the notch.

[0026] In the following, examples of implementation are given based on the Fig. 1 described in more detail: Vacuum cleaner bags can contain granules designed to prevent odors and / or germs from forming in the bag. The particle diameter of conventional activated carbon granules intended for this purpose is typically between 1.18 mm and 2.36 mm. The maximum particle size of these granules is < 1.18 mm, making up 4% of the total. It has been found that during the manufacture of conventional retaining plates, warping of the retaining plate in the area of ​​the inlet opening can lead to leaks between a seal and a closure flap. This can result in individual particles of the activated carbon granules escaping from the inlet opening during transport of the unused vacuum cleaner bag.

[0027] The closure flap 115 shown here, which can also be referred to as a closure plate, is pivotally mounted on the holding plate 100 via a film hinge in the form of the fastening device 130 and is pressed against the sealing element 110 by a spring when the vacuum cleaner bag is not in use. The sealing element 110, which can also be referred to as a seal, is molded onto the holding plate opening 105 in the holding plate 100 and extends concentrically to the opening edge of the holding plate opening 105 into the interior of the holding plate opening 105. According to this exemplary embodiment, the sealing element 110 has been injection-molded onto the holding plate opening 105 using a 2K process. When a vacuum cleaner bag with the holding plate 100 is inserted into a vacuum cleaner, after the vacuum cleaner lid is closed, a suction nozzle dips into the holding plate opening 105 of the holding plate 100. In the Fig. 2 and Fig. 5 shows that the closure flap 115 protrudes slightly from the sealing element 110 in the area of ​​the fastening device 130, which would encourage the activated carbon to trickle out without the sealing edge element 120 presented here. The sealing edge element 120 mounted on the closure flap 115, however, can advantageously increase the preload between the sealing element 110 and the closure flap 115. This prevents particles of activated carbon granules from escaping. The sealing edge element 120 can also be referred to as a dune collar.

[0028] Fig. Figure 2 shows a cross section of a holding plate 100 according to an embodiment. This is a cross section of the Fig. 1 described holding plate 100 along the Fig. Line DD shown in Figure 1.

[0029] It can be seen in Fig. 2, how the sealing edge element 120 in the region 200 of the hinge, in which the closure flap 115 is arranged obliquely to the retaining plate opening 105, rests against the sealing element 110 and thus fills a previously existing gap between the sealing element 110 and the closure flap 115. On a side of the retaining plate opening 105 opposite the region 200, the contact region 135 of the closure flap 115 also rests against the sealing element 110. The retaining plate opening 105 is thus completely closed.

[0030] According to this exemplary embodiment, the height of the C-shaped sealing edge element 120 is greatest in the center of the C-shaped sealing edge element 120 and smaller in the region of the ends of the C-shaped sealing edge element 120. According to this exemplary embodiment, the height of the sealing edge element 120 is between 0.5 and 5 mm.

[0031] According to this exemplary embodiment, the difference between a thickest and a thinnest point of the sealing edge element 120 in a transition region 205, in which the sealing edge element 120 extends away from the closure flap 115, is between 1 and 10 mm. According to this exemplary embodiment, the sealing edge element 120 has a smooth and polished surface in the transition region 205 and in an adjacent region of the closure flap 115, which together can be referred to as the inflow region. According to this exemplary embodiment, a wall thickness of the sealing edge element 120 corresponds to a closure flap wall thickness of the closure flap 115.

[0032] In the following, examples of implementation are given based on the Fig. 2 described in more detail: The sealing edge element 120 is integrated into the closure flap 115. The sealing edge element 120 enables an improved seal between the closure flap 115 and the retaining plate opening 105, which can also be referred to as the inlet opening. For this purpose, the sealing edge element 120 protrudes from the plane formed by the closure cap 115 toward the sealing element 110, i.e., toward the retaining plate side of the retaining plate 100, which is located on an outer side of the vacuum cleaner bag.

[0033] The sealing edge element 120 is not of uniform height all the way around. It decreases in height toward the side opposite the film hinge, i.e., toward the contact area 135. According to this exemplary embodiment, the sealing edge element 120 even disappears completely in the area of ​​the closure flap 115 opposite the film hinge. According to an alternative exemplary embodiment, the sealing edge element 120 can also be arranged to extend continuously around the edge of the closure flap 115.

[0034] The sealing edge element 120 is designed so that, when operated with a vacuum cleaner, no dust accumulates in the area of ​​the closure flap 115 exposed to the airflow. For this purpose, the transition from the closure flap plane of the closure flap 115 to the sealing edge element 120 is designed to be sloping and slightly inclined. The degree of the gradient can be determined by testing.

[0035] The closure flap 115 with the sealing edge element 120 is also designed to be particularly smooth in the area exposed to the air flow. For this purpose, it is advantageous if this area is polished, although polishing the closure flap 115 itself is not practical, as the manufacturing process would then be too expensive. The sealing edge element 120 is inserted into the closure flap 115 in such a way that no material accumulations occur in the closure flap 115, with the wall thickness remaining the same. The sealing edge element 120 is designed to prevent the sealing element 110 from becoming trapped between an inlet nozzle of the vacuum cleaner and the sealing edge element 120. The sealing edge element 120 does not protrude high above the plane of the holding plate 100, as otherwise an edge of the inlet nozzle could become caught on the edge of the sealing edge element 120, clamping the sealing element 110.

[0036] Fig. 3 shows a cross section of a holding plate 100 according to an embodiment. This is a cross section of the Fig. 1 and Fig. 2 described holding plate 100 along the Fig. Line CC shown in Figure 1.

[0037] Fig. Figure 4 shows a schematic plan view of a retaining plate 100 without a sealing element according to an embodiment. This can be one of the Fig. 1 to 3, with the difference that the sealing element is not shown in order to make the sealing edge element 120 more visible.

[0038] Fig. 5 shows a cross section of a holding plate 100 according to an embodiment. This is a cross section of the Fig. 4 shown holding plate 100 along the in Fig. Line BB shown in Figure 4.

[0039] Fig. 6 shows a cross section of a holding plate 100 according to an embodiment. This is a cross section of the Fig. 4 shown holding plate 100 along the in Fig. Line AA shown in Figure 4.

[0040] Fig. Figure 7 shows a schematic plan view of a retaining plate 100 without a sealing element according to an embodiment. This is the Fig. 4 shown holding plate 100 with different lines along which in the following Fig. 8 to 14 cross sections are shown.

[0041] Fig. Figure 8 shows a section of a cross section of a holding plate 100 according to an embodiment. This is a cross section along a Fig. 7 shown line EE. The height of the sealing edge element 120 is barely perceptibly small in this section.

[0042] Fig. Figure 9 shows a section of a cross section of a holding plate 100 according to an embodiment. This is a cross section along a Fig. 7 shown line FF. The height of the sealing edge element 120 is greater in this section than in Fig. 8.

[0043] Fig. Figure 10 shows a section of a cross section of a holding plate 100 according to an embodiment. This is a cross section along a Fig. 7 shown line GG. The height of the sealing edge element 120 is greater in this section than in Fig. 9.

[0044] Fig. 11 shows a section of a cross section of a holding plate 100 according to an embodiment. This is a cross section along a Fig. 7 shown line HH. The height of the sealing edge element 120 is greater in this section than in Fig. 10.

[0045] Fig. 12 shows a section of a cross section of a holding plate 100 according to an embodiment. This is a cross section along a Fig. 7 shown line II. The height of the sealing edge element 120 is greater in this section than in Fig. 11.

[0046] Fig. 13 shows a section of a cross section of a holding plate 100 according to an embodiment. This is a cross section along a Fig. 7 shown line JJ. The height of the sealing edge element 120 is greater in this section than in Fig. 12.

[0047] Fig. 14 shows a section of a cross section of a holding plate 100 according to an embodiment. This is a cross section along a Fig. 7 shown line KK. The height of the sealing edge element 120 is greater in this section than in Fig. 13.

[0048] Fig.15 shows a flowchart of a method 1500 for producing a retaining plate for a vacuum cleaner bag according to an exemplary embodiment. This can be the retaining plate described with reference to the preceding figures.

[0049] The method comprises at least one providing step 1505 and an attaching step 1510. In the providing step 1505, at least one component of the retaining plate is provided, comprising at least one retaining plate opening, a sealing element arranged to extend at least partially around the retaining plate opening, and a closure flap configured to at least partially close the retaining plate opening in a closed position.In step 1510 of attachment, a sealing edge element is attached to the closure flap, wherein the sealing edge element is attached to the closure flap in such a way that the sealing edge element is arranged between the sealing element and the closure flap in the closed position of the closure flap in such a way that a prestress is generated between at least a partial region of the sealing edge element and the sealing element in order to prevent at least one particle from passing through the holding plate opening.

[0050] In step 1510 of attachment, the sealing edge element can be injection-molded and / or glued to the closure flap.

Claims

[1] Holding plate (100) for a vacuum cleaner bag for a vacuum cleaner, wherein the holding plate (100) has at least the following features: - a retaining plate opening (105); - a sealing element (110) which is arranged to extend at least partially around the holding plate opening (105); - a closure flap (115) which is shaped to at least partially close the holding plate opening (105) in a closed position; and - a sealing edge element (120) arranged on the closure flap (115), which in the closed position of the closure flap (115) is arranged between the sealing element (110) and the closure flap (115) in such a way that a prestress is generated between at least a partial area of ​​the sealing edge element (120) and the sealing element (110) in order to prevent at least one particle from passing through the holding plate opening (105), the sealing edge element (120) is C-shaped. [2] Holding plate (100) according to claim 1, wherein the sealing edge element (120) is arranged at least partially on an edge of the closure flap (115). [3] Holding plate (100) according to one of the preceding claims, in which the sealing edge element (120) is arranged on a cover side (150) of the closure flap (115), wherein the cover side (150) is arranged facing away from the vacuum cleaner bag in an operational state of the holding plate (100) on a vacuum cleaner bag. [4] Holding plate (100) according to claim 1, with a fastening device (130) which is designed to fasten the closure flap (115) to a support plate of the holding plate (100) having the holding plate opening (105), wherein a center of the C-shaped sealing edge element (120) is arranged facing the fastening device (130). [5] Holding plate (100) according to one of claims 1 or 3, wherein a height of the C-shaped sealing edge element (120) is greatest in a center of the C-shaped sealing edge element (120) and is smaller in the region of at least one end (140, 145) of the C-shaped sealing edge element (120). [6] Holding plate (100) according to one of the preceding claims, wherein a height of the sealing edge element (120) is 0.5 to 5 mm. [7] Holding plate (100) according to one of the preceding claims, wherein a difference between a thickest and a thinnest point of the sealing edge element (120) in a transition region (205) in which the sealing edge element (120) extends away from the closure flap (115) is between 1 and 10 mm. [8] Holding plate (100) according to one of the preceding claims, in which the closure flap (115) and / or the sealing edge element (120) has at least partially a smooth and / or polished surface in an inflow region in which the sealing edge element (120) extends away from the closure flap (115). [9] Holding plate (100) according to one of the preceding claims, wherein a wall thickness of the sealing edge element (120) substantially corresponds to a closure flap wall thickness of the closure flap (115). [10] Vacuum cleaner bag with a holding plate (100) according to one of the preceding claims. [11] Method (1500) for producing a holding plate (100) according to one of claims 1 to 9 for a vacuum cleaner bag, the method (1500) comprising at least the following steps: - Providing (1505) at least one component of the holding plate (100) with at least one holding plate opening (105), a sealing element (110) which is arranged to extend at least partially around the holding plate opening (105) and a closure flap (115) which is shaped to at least partially close the holding plate opening (105) in a closed position; and - Attaching (1510) a sealing edge element (120) to the closure flap (115), wherein the sealing edge element (120) is attached to the closure flap (115) in such a way that the sealing edge element (120) is arranged between the sealing element (110) and the closure flap (115) in the closed position of the closure flap (115) in such a way that a prestress is generated between at least a partial region of the sealing edge element (120) and the sealing element (110) in order to prevent at least one particle from passing through the holding plate opening (105).

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