Cover for a component of a suction device

Abstract

The present invention relates to a covering (1) for a component of a suction device (35) comprising: - at least one tubular, elastic textile part (3), and - base part (2) having at least one through opening (6). In order to provide a covering (1) whose manufacture and assembly is significantly simplified and more cost-effective and which allows recycling of the individual components, it is proposed according to the invention that the covering (1) is characterized in that - the textile part (3) can be pulled over the base part (2), wherein a length (L1) of the textile part (3) is greater than a length (L2) of the base part (2), so that ends (11) of the pulled-over textile part (3) protrude beyond ends (12) of the base part (2), and - wherein the covering (1) further comprises at least two fastening profiles (4, 5) for fixing the textile part (3) to the base part (2), and the fastening profiles (4, 5) can be inserted into the through-opening at two opposite ends (12) of the base part, so that at least the ends of the textile part (3) are arranged between the base part (2) and the respective fastening profiles (4, 5), and - wherein the at least one base part (2), the at least one textile part (3) and the at least two fastening parts (4, 5) are detachably connectable to one another.

Description

The invention relates to a casing for a component of a suction device according to the preamble of claim 1.The claddings known from the prior art are shaped in such a way that they ensure shock absorption on account of their soft surface and thus protect surfaces of items of furniture, for example. A further advantage of the cladding is that an air flow flowing through the cladding is diffusely distributed. As a result, the air flow is less perceptible and thus more pleasant. Quite incidentally, the cladding can be configured decoratively, in order thus to conceal a less decorative air outlet, for example. The components arranged under the cladding can consequently be produced less decoratively and thus more cost-effectively.Typically, the textile parts known from the prior art are bonded to a carrier. However, this entails the disadvantage that recycling of the carrier and / or of the textile part becomes virtually impossible, since residue-free detachment of the textile part from the carrier can hardly be implemented. Typically, residues of the adhesive or textile part remain on the carrier or residues of the adhesive or carrier remain on the textile part, whereby recycling becomes impossible.Alternatively, the textile parts known from the prior art are heat-stamped with a plastic carrier. This method is not only very complicated, since a special flat shape of the plastic carrier is required in order to be able to be used in the stamping tool. Here, too, a separation of the textile part from the carrier is almost impossible and thus a recycling of the individual components is ruled out.A further alternative for producing the cladding is that a plastic carrier is injection-molded from behind. This method, which is also very expensive, requires special tools. Furthermore, the composite is not air-permeable and unusable as an air passage.The present application is now based on the object of providing a cladding, the production and assembly of which is significantly simplified and more cost-effective and enables recycling of the individual components.The underlying object is achieved according to the invention by means of a cladding having the features of claim 1. Advantageous embodiments are evident from dependent claims 2 to 9.The covering according to the invention is characterized in that the textile part can be pulled over the base part, wherein a length of the textile part is greater than a length of the base part, such that ends of the pulled over textile part project beyond ends of the base part, and wherein the covering further comprises at least two fastening profiles for fixing the textile part to the base part, and the fastening profiles can be pushed into the through-opening at two opposite ends of the base part, such that at least the ends of the textile part are arranged between the base part and the respective fastening profiles, and wherein the at least one base part, the at least one textile part and the at least two fastening parts can be detachably connected to one another.A suction device according to the invention can be a vacuum cleaner, in particular a battery-operated stick vacuum cleaner or a floor vacuum cleaner.The through hole disposed in the base portion extends from the first end of the base portion to the second end of the base portion. For example, components of the suction device can be arranged within the through-opening, so that the cladding covers these components. It is also conceivable for the components of the suction device to traverse the base part from the first end to the second end. A cross-sectional area of the through-opening is preferably angular or round.In the sense of the present invention, the textile part is tubular. That is, the textile part is an elongated fabric which can have differently shaped cross-sectional areas. In this case, it is conceivable, for example, for the cross-sectional area to be round, triangular or quadrangular. The textile part is pullable over the base part. In order for ends of the over-drawn textile part to protrude beyond the ends of the base part, the length of the textile part is greater than the length of the base part. This has the advantage that fixing the ends of the textile part does not have to be glued, as is known from the prior art, but instead, for example, is fixed by being arranged between the base part and the respective fastening profile.After the end of the life of the cladding, the textile part, the at least two fastening parts and the at least one base part are detachable from one another in such a way that recycling of all parts is possible. Thus, no adhesive residues or residues of the individual parts remain on the respective other parts. The different materials can be sorted according to their composition and recycled or recycled. It is likewise conceivable that, for example, the fastening parts and / or the base part and / or the textile part can be released from one another in a non-destructive manner. Consequently, all the parts can be reused. It is also conceivable that in the event of a defect in one of the parts, only the defective part is replaceable. For example, in the event of a defect in the textile part, only this could be exchanged and the base part and the two fastening profiles are reused.In an advantageous embodiment of the invention, it is provided that the base part is formed cylindrically and a cross-sectional area of the base part is preferably round, oval or angular. A cylindrical shape means that the base part is longer than wide. At best, the cross-sectional area of the base part corresponds to the cross-sectional area of the textile part. Preferably, however, a diameter of the textile part is smaller than an outer diameter of the base part, so that the textile part can conform to the base part. This is possible in particular due to the elasticity of the textile part, since this can be expanded to the outer diameter of the base part. A bending is effected in that the textile part wishes to return to its original shape. Due to this elasticity, it is also not absolutely necessary for the cross-sectional area of the base part to correspond to the cross-sectional area of the textile part, since the textile part in the over-drawn state preferably adapts to the shape of the base part.With regard to the arrangement of the textile part, it is particularly advantageous if the ends of the textile part can be pushed by the respective fastening profile into the through-opening of the base part and held preferably by clamping between the respective fastening profile and the base part. Thus, a further fastening means, such as adhesive, can be dispensed with.The insertion of the textile part into the through-opening into the base part can be converted particularly easily if the ends of the textile part are preferably drawn together after being placed over the base element. This means that a diameter at the ends of the textile part is smaller than a diameter of the textile part in the region of the base part. The elastic textile part can contract back into its original shape in the areas in which it is not tensioned by the base part or in which it fits around the base part. The contracted ends facilitate the attachment of the textile part between the base part and the respective fastening part.In an advantageous embodiment, the fastening profiles are formed cylindrically, wherein the fastening profiles each have a base piece and a hollow cylinder located thereon. The respective base piece and the respective cylinder are preferably formed in one piece, that is to say they are preferably connected to one another in a materially integral manner and / or are preferably formed together as a whole.Preferably, the cylinder of the first fastening profile is constructed in such a way that it has two protrusions, preferably in the form of walls, and has a recess on each side of the protrusions. The cylinder of the second fastening profile preferably comprises a completely encircling wall, wherein furthermore preferably two lugs are arranged on the wall, which lugs can correspond to the recesses of the first fastening profile. In addition to the noses, two indentations are preferably provided which in turn preferably cooperate with the bulges of the first fastening profile. The noses preferably conceal the wall of the cylinder of the first fastening profile at least in sections.The protrusions of the first fastening profile and the protrusions of the second fastening profile as well as the recesses of the first fastening profile and the noses of the second fastening profile are preferably designed in the sense of a tongue-and-groove connection.In at least one of the walls, honeycomb openings are preferably located, through which air can flow.Furthermore, it can be advantageous if at least one of the fastening profiles is conical, so that a gap between the respective fastening profile and the base part, viewed from a central axis of the base part in a direction away from the central axis, decreases ever further. Such a formation brings with it the advantage that an insertion of the respective fastening profile is simplified, since an end of the respective fastening profile oriented towards the central axis of the base part has a smaller diameter than an inner diameter of an inner wall of the base part. Nevertheless, the respective fastening profile can be clampable in the base part, since the diameter of the respective fastening profile and the inner diameter of the inner wall become increasingly uniform when the respective fastening profile is introduced into the base part. Furthermore, the textile part can thus be clamped between the base part and the fastening profile.The conical shape of the respective fastening profile is preferably effected by means of ribs located on the fastening profile, preferably an outer wall of the fastening profile. The diameter of the respective fastening profile increases, as seen in a direction away from a central axis of the base part, on account of the ribs arranged on the outer jacket of the respective fastening profile. The ribs can be glued to the outer jacket or be formed integrally with the respective fastening profile.It would also be conceivable for the ribs to be located on the inner wall of the base part, such that the inner wall runs conically in the direction of the central axis. The central axis would then be an axis of symmetry towards the inner diameter of the inner wall decreasing from both ends of the base part.According to a particularly preferred embodiment of the invention, it is provided that the fastening profiles can be detachably connected to one another by means of a clamping connection, preferably in a non-destructive manner. The composition of the cladding can be carried out very quickly in this way.Alternatively, it is conceivable that the two fastening profiles can be detachably connected to one another, preferably non-destructively, by means of a screw connection. Screwing the two fastening profiles together ensures that the two fastening profiles remain joined together even when a greater external force is applied. Likewise, a nondestructive solution of both fastening profiles is provided and thus recycling of the individual parts of the cladding is possible.Preferably, at least one through hole is located in at least one of the two fastening profiles, through which a screw can be passed and placed. In the correspondingly different fastening profile there is at least one internal thread, wherein a longitudinal axis of the through hole of the one fastening profile is arranged coaxially to a longitudinal axis of the internal thread of the respective other fastening profile.An advantageous embodiment of the invention provides that the textile part is at least partially air-permeable. This is advantageous in particular when the cladding covers the exhaust air of the suction device. The air flows through the textile part and is thereby distributed in a diffuse manner. A user of the suction device can then feel the air flow more comfortable.In this embodiment, it is particularly advantageous if the base part likewise has openings, for example in the form of slots, through which an air stream can be guided. The air flow can then flow from the suction device through the honeycomb openings in the fastening profiles, through the openings in the base part and the textile part.An advantageous further development of the invention provides that the base part and / or the at least one fastening profile are produced by means of an injection molding process. Injection molded parts can be manufactured quickly and cost-effectively in large quantities. The manufacture of the cladding is thus particularly efficient.An exemplary embodiment of the invention is illustrated purely schematically in the drawings and is described in more detail below. It shows: FIG. 1 is an exploded view of a cladding according to the invention for a component of a suction device, FIG. 2 shows a sectional view of the cladding according to the invention according to FIG. 1, FIG. 3 shows a sectional view of the cladding according to the invention according to FIG. 1 in an assembled state, FIG. 4 shows a detailed view of a clamping of the textile part between a base part and a fastening profile, and FIG. 5 shows a side view of a suction device with the cladding according to the invention according to FIG. 1.FIGS. 1 and 2 show a cladding 1 according to the invention with a base part 2, a textile part 3 and two fastening profiles 4, 5, which can be detachably connected to one another. The base part 2 is cylindrically shaped. The base part 2 has a through-opening 6, which is surrounded by a wall 7 of the base part 2. The wall 7 of the base part 2 is formed to be air-permeable at least in sections. For this purpose, openings, for example in the form of slots 8, are provided in the wall 7. A cross-sectional area 9 of the base part 2 is round, and a cross-sectional area 10 of the through-opening 6 is also round. The base part 2 is produced by means of an injection molding method.The base part 2 is surrounded by the tubular, elastic textile part 3. The textile part 3 is expanded during an inversion over the base part 2 and drawn around the base part 2. This means that an outer diameter D 1 of the base part 2 is greater than a diameter, not shown here, of the textile part 3 in its relaxed form. Due to the elastic formation, the textile part 3 wishes to return to its original shape and thus lies around an outer surface of the wall 7 of the base part 2 that is concealed by the textile part 3 and is thus visible here. a length L 1 of the textile part 3 is greater than a length L 2 of the base part 2, for which reason ends 11 of the over-drawn textile part 3 protrude beyond ends 12 of the base part 2, as can be seen in particular from FIG. 2. The ends 11 of the textile part 3 contract because the textile part 3 wishes to return to its original shape due to its elasticity. That is, a diameter D 2 of the textile part 3 drawn over the base part 2 is larger than a diameter D 3 at the ends 11 of the textile part 3 in regions where the textile part 3 surrounds the base part 2.The textile part 3 is formed to be air-permeable, so that an air stream can flow out of the suction device through the textile part 3.The textile part 3 can be fixed to the base part 2 by means of the fastening profiles 4, 5. For this purpose, it is provided that at each end 12 of the base part 2, a fastening profile 4, 5 is inserted into the through-opening 6 in the direction (shown by the arrows 14) of a central axis 13 of the base part 2, respectively. The respective ends 11 of the textile part 3 are inserted by the corresponding fastening profile 4, 5 into the through-opening 6 and clamped between the base part 2 and the respective fastening profile 4, 5.The two fastening profiles 4, 5 are cylindrically shaped and have a round cross-sectional area. A first fastening profile 4 has a solid base piece 15 and a hollow cylinder 16 located thereon. The base piece 15 and the cylinder 16 are manufactured as a whole by means of an injection molding process. The cylinder 16 has two recesses 17 which are in turn each adjacent to two bulges 18. The two protrusions 18 are formed by walls 19 of the cylinder 16 and the respective recess 17 is located on each flank 20 of the respective protrusion 18, the walls 19 of the two protrusions 18 being provided with honeycomb openings 21, through which an air stream can flow.The second fastening profile 5 likewise has a solid base piece 22. On the base piece 22 there is a cylinder 23 which is formed by a wall 25 provided with honeycomb openings 24. On the base piece 22, there are furthermore two noses 26, which are arranged on an outer surface 27 of the wall 25 and partially conceal the honeycomb-shaped openings 24. The noses 26 correspond to the recesses 17 of the first fastening profile 4. indentations 28 are again located between the two noses 26 which correspond to the bulges 18 of the first fastening profile 4.The second fastening profile 5 is likewise produced in one piece by means of an injection molding method.In an inserted state of the fastening profiles 4, 5, these are fastened to one another by means of screws 29, as can be seen from FIG. 3. For this purpose, the first fastening profile 4 has two internal threads 30. The second fastening profile 4 in turn has two through-holes 31, through which the screws 29 can be pushed until a screw head abuts. A longitudinal axis 32 of the internal threads 30, a longitudinal axis 33 of the screws 29, and a longitudinal axis 34 of the through-holes 31 are correspondingly arranged approximately coaxially with respect to one another.FIG. 3 shows the fairing in an assembled state. The respective bulges 18 of the first fastening profile 4 are inserted into the indentations 28 of the second fastening profile 5 and the two noses 26 of the second fastening profile 5 are inserted into the recesses 17 of the first fastening profile 4. The honeycomb openings 21 of the first fastening profile 4 are arranged on the honeycomb openings 24 of the second fastening profile in such a way that an air stream can pass through them. The fastening profiles 4, 5 are connected to one another by means of the screws 29. The textile part 3 is clamped between the base part 2 and the corresponding fastening profiles 4, 5, as can be seen in particular from FIG. 4. This allows the textile part 3 to be fixed to the cladding 1.In an alternative embodiment, not shown here, ribs are located on the solid base pieces of the two fastening profiles, as a result of which the two fastening profiles have a conical outer wall, wherein a diameter becomes increasingly larger as seen from a central axis 13 of the base part in the direction of the ends of the base part. Consequently, a gap between the base part and the respective fastening profile becomes smaller and smaller as viewed from the central axis 13. This simplifies insertion of the fastening profiles into the base part and reinforces the clamping effect on the textile part. Furthermore, it is alternatively conceivable for the two fastening profiles to have a conical outer wall without additional ribs being required for this purpose.FIG. 5 shows the cladding 1 according to the invention on a suction device 35. The cladding 1 surrounds an air outlet which is not visible here, wherein air flowing out of the air outlet can flow through the cladding 1. The air flow flows from the air outlet through the honeycomb openings 21, 24 in the fastening profiles 4, 5, the slots 8 in the base part 2 and the textile part 3.List of reference characters1 Cladding 2 Base part 3 Textile part 4 Fastening profile 5 Fastening profile 6 Through-opening 7 Wall 8 Slots 9 Cross-sectional area 10 Cross-sectional area 11 End 12 End 13 Central axis 14 Arrow 15 Base piece 16 Cylinder 17 Recess 18 Bulge 19 Wall 20 Flank 21 Opening 22 Base piece 23 Cylinder 24 Opening 25 Wall 26 Nose 27 Outer surface 28 Indentation 29 Screw 30 Internal thread 31 Through-holes 32 Longitudinal axis 33 Longitudinal axis 34 Longitudinal axis 35 Suction device L 1 Length L 2 Length D 1 Outer diameter D 2 Diameter D 3 Diameter

Claims

Cladding (1) for a component of a suction device (35), comprising: - at least one tubular, elastic textile part (3), - at least one base part (2) having a through-opening (6), characterized in that - the textile part (3) can be drawn over the base part (2), wherein a length (L1) of the textile part (3) is greater than a length (L2) of the base part (2), such that ends (11) of the drawn-over textile part (3) project over ends (12) of the base part (2), and - wherein the cladding (1) further comprises at least two fastening profiles (4, 5) for fixing the textile part (3) to the base part (2), and the fastening profiles (4, 5) can be pushed into the through-opening at two mutually opposite ends (12) of the base part, such that at least the ends of the textile part (3) are arranged between the base part (2) and the respective fastening profiles (4, 5), and - wherein the at least one base part (2), the at least one textile part (3) and the at least two fastening parts (4, 5) can be detachably connected to one another.Cladding (1) according to claim 1, characterised in that a cross-sectional surface (9) of the base part (3) is round, oval or angular.Cladding (1) according to either of Claims 1 and 2, characterized in that the ends (11) of the textile part (3) are drawn together after being placed over the base element (2).Cladding (1) according to one of the preceding claims, characterized in that the ends (11) of the textile part (3) are preferably pushed by the fastening profiles (4, 5) into the through-opening (6) of the base part (2) and held between the respective fastening profile (4, 5) and the base part (2), preferably clamped.Cladding (1) according to one of the preceding claims, characterized in that at least one of the fastening profiles is conical, and in that a gap between the respective fastening profile and the base part decreases ever further.Cladding (1) according to one of the preceding claims, characterized in that an increase in the diameter of the respective fastening profile takes place by ribs, preferably on an outer jacket of the respective fastening profile.Cladding (1) according to one of the preceding claims, characterized in that the fastening profiles can be detachably connected to one another by means of a clamping connection, preferably non-destructively, or in that the two fastening parts (4, 5) can be detachably connected to one another, preferably non-destructively, by means of a screw connection.Cladding (1) according to one of the preceding claims, characterized in that the textile part (3) and / or base part (2) and / or at least one fastening profile (4, 5) are at least partially air-permeable.Cladding (1) according to one of the preceding claims, characterized in that the base part (2) and / or the at least one fastening profile (4, 5) are produced by means of an injection molding process.Suction device (35) having a casing (1) according to claim 1.

Images