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US 2022/0087490 A1Published application
Vacuum cleaner bag and vacuum cleaner
AssigneeWolf Pvg GmbH & Co. KG
InventorsWolfgang CZADO, Gerold SCHANDL
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner has a vacuum cleaner bag having two layers made of filter material, which are joined together on at least three sides to form an inner chamber. An inflow opening is formed on a fourth side between the two layers, at least in regions, into which a connector for connecting to a vacuum cleaner can be inserted.
Claims15
1:
- A vacuum cleaner bag (1, 1′) having two layers (2, 2′, 20) made of filter material which are connected to one another at the edges on at least three sides (3, 5) in order to form an inner chamber, wherein an inflow opening (9) is formed at least in regions on a fourth side (4) between the two layers (2, 2′, 20), into which inflow opening (9) a connector (11) can be inserted for connection to a vacuum cleaner.
2:
- The vacuum cleaner bag according to claim 1, wherein a hem is provided at the inflow opening (9) on the two layers (2, 2′, 20), into which a closure element and/or a spring element (10) is/are inserted.
3:
- The vacuum cleaner bag according to claim 1, wherein a spring element (10) is provided at the inflow opening (9), which pretensions the two layers (2, 2′, 20) into a closed position.
4:
- The vacuum cleaner bag according to claim 2, wherein the spring element (10) is designed as a leaf spring which is bent through approximately 180° at the edge of the inflow opening (9).
5:
- The vacuum cleaner bag according to claim 1, wherein the inflow opening (9) extends completely over the length of the fourth side (4).
6:
- The vacuum cleaner bag according to claim 1, wherein the four sides of the vacuum cleaner bag comprise two longitudinal sides (5) and two narrow sides (3, 4), as seen in plan view, and the inflow opening (9) is provided on one of the narrow sides (4).
7:
- The vacuum cleaner bag according to claim 6, wherein the longitudinal sides (5) are at least three times longer than the narrow sides (3, 4).
8:
- The vacuum cleaner bag according to claim 1, wherein a sealing layer, in particular made of a bulky nonwoven, is provided on an inside of the inflow opening (9).
9:
- The vacuum cleaner bag according to claim 1, wherein the filter material is made of a single-layer or multilayer nonwoven fabric.
10:
- The vacuum cleaner bag according to claim 1, wherein at least one hook-and-loop type fastener, profile fastener with two interlocking profiles, a snap fastener, a rivet, a magnet, a clamping strip, a pinch clip and/or an annular spring is provided for closing the inflow opening (9).
11:
- A vacuum cleaner comprising a driven fan and a substantially tubular chamber for accommodating a vacuum cleaner bag according to claim 1.
12:
- The vacuum cleaner according to claim 11, wherein the vacuum cleaner has a holding device which fixes the vacuum cleaner bag (1, 1′) in the region of the inflow opening (9).
13:
- The vacuum cleaner according to claim 11, wherein holding means in the form of grooves, slots, ribs, magnets and/or clamping elements are provided on a connector of the vacuum cleaner for fixing the vacuum cleaner bag (1, 1′).
14:
- The vacuum cleaner according to claim 11, wherein the connector, at least in the region of the inflow opening in an inserted position, is substantially oval in cross-section.
15:
- The vacuum cleaner according to claim 11, wherein the vacuum cleaner has a mechanical ejector that is configured for stripping the vacuum cleaner bag (1, 1′) from the connector.