WO2020224726A1

WO2020224726A1 - Rim-covering tape

Info

Publication number: WO2020224726A1
Application number: PCT/DE2020/100388
Authority: WO
Inventors: Hans-Peter Würz
Original assignee: Lackierzubehör Und Technische Geräte Ltg Ug (Haftungsbeschränkt)
Priority date: 2019-05-09
Filing date: 2020-05-08
Publication date: 2020-11-12
Also published as: DE202020102608U1; DE112020002291A5

Abstract

The present invention relates to a rim-covering tape, in particular for motor vehicle wheel rims, having a backing layer and, at least in some regions, an adhesive layer. The covering tape is in the form of a circular ring segment (1) such that multiple circular ring segments (1) can be inserted running around radially between the rim flange (4) and the tyre (7) and at least partially cover a flank (5) of the tyre (7).

Description

Felqen masking tape

The present invention relates to a rim cover tape, in particular for motor vehicle rims, according to the features in the preamble of claim 1.

It is known from the prior art that the bodies or outer skin components of motor vehicles are painted. For this purpose, there are paint booths in the automotive industry through which the bodyshells and / or the individual parts such as doors, hoods, trunk lids and other attachments are passed and provided with a paint application, in particular the external surface paint. Then add-on parts such as windows, rubber seals and other components are installed and the vehicle is completed.

If an accident now happens in traffic, often only individual parts are damaged, deformed or scratched, so that only these individual parts have to be replaced and / or repaired and repainted. Care is taken to ensure that this is done as cheaply as possible, since either a private person has to pay for the damage himself or an appropriate insurance company is also careful to have the lowest possible damage sums. An important factor here is the time that is required to take the appropriate preparatory measures for the actual painting process.

In addition to filling and sanding work or dent removal work, masking work is also necessary here. This means that the corresponding rubber seals, headlights or the like are not removed, but are masked in a time-effective manner and thus an area, for example a front apron, a fender or even a vehicle door, can be partially painted on the otherwise entire vehicle. So-called masking tape is used for the masking work. Masking tape is also referred to, for example, as painter's tape or painting tape. The lines or components that are not to be painted are masked. Larger areas behind, such as panes, are covered by paper or foil. This is also masked at the edge areas.

Vehicle leasing has increasingly found its way into the motor vehicle trade. The vehicles are returned here after two or three years as lease returns and must be in the best possible condition, especially the condition of the year-old car, when they are returned and / or resold. During use, however, damage occurs not only to the body, but also to the rims. If the motor vehicle is examined closely, damage to a rim can reduce the visual impression. Since the accessories industry, but also the motor vehicle industry itself, has been using more and more larger and visually impressive rims on original vehicles in recent years, a complete replacement of a rim is often not economically viable, since up to several thousand euros are called for a new rim wheel set can. In this respect, in the case of minor, in particular only optical, damage to light metal rims in particular, a reconditioning / repair process has established itself here as well. Light metal rims in particular are coated with at least a clear coat and / or a colored coat, mostly silver. If this is damaged and / or if the rim edge is also slightly damaged by so-called curb damage, there have so far been two measures to properly repair the rim. A first measure provides that the tire is dismantled from the rim, the rim is mechanically processed and prepared for painting, then the rim is painted and then the tire is put back on. However, this process is time-consuming and therefore costly. Especially since the freshly painted rim can be damaged when the tire is fitted again.

A second option is to leave the tire on the rim. To do this, either the air on the tire is released so that the tire flank is pressed down from the rim. This, in turn, is complex and sometimes requires special tools. An alternative provides that the rim edge is masked individually by hand with masking tape from a roll, which is time-consuming.

The object of the present invention is therefore to show a possibility of being able to paint rims, in particular motor vehicle rims, simply, effectively and professionally in a short period of time.

The aforementioned object is achieved with a rim cover tape, in particular for motor vehicle rims, with the features in claim 1.

Advantageous design variants of the present invention are the subject of the dependent claims.

The rim cover tape is suitable for motor vehicle rims, in particular car rims. It is characterized in that it has a carrier layer and an adhesive layer at least in some areas. The adhesive layer is preferably made of a plastic material. According to the invention, the cover tape is characterized in that it is not present as an endless material on a roll, but rather in individual pieces Annular segments is provided. This makes it possible, in the case of a circular rim, for several circular ring segments to be plugged radially circumferentially between the rim flange and the tire and thereby a flank of the tire on the rim is at least partially covered in the radial direction. The entire flank of the tire can preferably also be covered in the radial direction.

Thus, several circular ring segments are arranged on the rim in a radial manner. It starts with a segment of a circular ring. Then a respective annulus segment is arranged adjacent clockwise or counterclockwise. The two adjacent circular ring segments overlap by a few millimeters in the direction of rotation. If the last circular ring segment is arranged, a gap can remain between the first and penultimate circular ring segment, which has a width in the circumferential direction that corresponds, for example, to only one third or half the width of a circular ring segment. Here the last circular segment to be inserted can then be cut through with a separating agent, for example a cutter knife or scissors. The remainder that has been cut off and initially not used can then be fed to a further masking process for another rim.

The carrier layer is in particular formed from a dimensionally stable material, in particular plastic material, very particularly preferably from a composite film made of plastic film and aluminum foil. In a particularly preferred embodiment, however, the carrier layer can also be designed as a so-called monoband. Since it is, in particular, a single-use or disposable item, particularly good recycling can take place here, since, in contrast to a composite film, there is no separation according to the respective recycling and disposal specifications. The carrier layer is particularly preferably a plastic film. This particularly preferably has a weight per unit area between 50 and 200 g / m ² , very particularly preferably between 70 and 110 g / m ² , and in particular between 80 and 100 g / m ² . It has proven to be advantageous if a tensile strength of 30 MPa or more is formed, in particular 40 or more, very particularly preferably between 40 and 50 MPa. Furthermore, the film preferably has a tear strength greater than 70 MPa, in particular greater than 80 MPa, particularly preferably between 80 and 90 MPa. The slide of the The carrier layer itself should have a melting point above 100.degree. C., in particular above 120.degree. C., very particularly preferably above 135.degree. This ensures that it does not melt during a drying process in a painting booth. The respective strengths are optimal for the masking process.

The circle segment now has no adhesive layer on the outside in relation to the radial direction inside, so that a so-called plug-in area results here. The plug-in area is designed to be greater than 3 mm, in particular greater than or equal to 4 mm, in the radial direction. The plug-in area can preferably also be configured from 10 mm to 30 mm. The plug-in area is particularly preferably 10 to 20 mm high in the radial direction and very particularly preferably up to 15 mm, particularly preferably approximately 12 mm high. Due to the dimensionally stable, relatively thin material of the carrier layer, it is possible to insert the circular ring segment between the rim flange and the tire. The tire does not have to be removed from the rim flange for this. The plug-in area can in particular be designed in such a way that it has the following structure over the wall thickness of the circular ring segment; first the carrier layer is formed. There is an adhesive layer on the carrier layer. A pull-off tape is in turn arranged on the plug-in area. The peel tape then has the height described above. And thus forms the plug-in area. The peel-off tape can remain so that it can be inserted between the rim flange and the tire. However, the release tape can also be removed. The plug-in area then has sufficient rigidity at least because of the carrier layer. This rigidity can, however, be increased with the remaining peel-off tape, so that the plug-in area can be stuck sufficiently far between the rim flange and the rubber of the tire so that no spray mist or paint runs in here during the later painting process.

The circular ring segment can then be fixed to the flank of the tire with the adhesive layer. The plug-in area remains between the rim flange and the tire. In a subsequent painting process, no spray mist, but also no paint, reaches the rubber jacket. A resulting edge of the painting process is arranged in the non-visible area behind the rim flange without dismantling the tire. There are thus several radially circumferential Circle segments, in particular more than four, preferably five to ten, inserted. This can happen in particularly short working hours or labor values. Surprisingly, it has been shown that, in particular compared to manual masking, even with a skilled painter, a time saving of up to 50% can be achieved. At the same time, the result is significantly improved compared to straight cover tape due to the circular ring segment sections.

The carrier layer itself preferably has a thickness of 0.01 mm to 1 mm, preferably from 0.05 mm to 0.3 mm, in particular 0.06 mm to 0.09 mm and particularly preferably from 0.07 mm to 0, 08 mm used. The carrier layer particularly preferably has a thickness between 100 and 150 μm, very particularly preferably between 105 and 120 μm and in particular 110 μm.

The plug-in area itself can also have a further layer in order to be more dimensionally stable here if necessary. This further layer in the plug-in area can also be a plastic film, in particular a PVC or PE film. This can preferably have a thickness of 0.05 mm to 0.15 mm, particularly preferably 0.09 mm to 0.11 mm and in particular 0.1 mm. This push-in film in the mating area is then firmly glued to the carrier layer so that it cannot be accidentally pulled off during the masking process.

In this way, it can be achieved that sufficient dimensional stability is guaranteed so that the carrier layer can be plugged in between the rim flange and the flank of the tire, in particular the tire bead, and is also held here. At the same time, the use of less material is possible, since the rim masking tape is, in particular, a disposable item, i.e. it is only used once.

The annulus segment can be printed on a side lying on the outside after the insertion process. For example, advertising can be applied for this purpose. However, information can also be applied, for example for which rim size this respective cover tape is suitable. For example, the plug-in edge or the plug-in area can also be contrasted in color. Here, for example Peel tape must be separated. For example, the pull-off tape that remains on the plug-in area can be contrasted in color with the pull-off tape that is pulled off. In addition, the information on the rim size can be printed, for example, on the peel-off tape or also on the back of the carrier layer. In the same way, an instruction manual on how to attach the respective masking tape can be printed out yourself. The whole thing can be done in several languages and / or with pictures so that the masking tape can be sold internationally.

One possibility is that in particular the carrier layer itself is a composite film. A plastic film, in particular based on polyester, for example PET, is preferably used. Furthermore, a film layer of the composite film can be formed on an aluminum basis.

A further advantage results from the cover film according to the invention. If not only the paint on the rim is damaged, but the rim is also mechanically damaged, an abrasive grinding process is necessary to recondition the rim. Here, grinding tools such as cylindrical or eccentric grinders are used. These are attached to the edge of the rim. Depending on the damage, it may also be necessary that the grinding tool is moved beyond the rim edge in the radial direction. This would result in sliding contact between the tire sidewall and the abrasive, so that optical damage would be generated on the sidewall of the tire. In the prior art, masking is either initially carried out, in particular with composite adhesive tapes, so-called armored tape. This is then removed after the grinding process and a new masking process must be carried out for the painting process. This is time-consuming and costly because more consumables are used and two masking processes have to take place. If the cover tape according to the invention is used, the grinding process can take place. If the abrasive makes contact with the backing layer, it will withstand several grinding processes. Then it can be cleaned with compressed air and / or cleaning fluids and then the painting process can take place without re-masking. The thickness of the adhesive layer is preferably 0.02 mm to 0.1 mm, particularly preferably 0.04 mm to 0.08 mm and in particular 0.07 mm to 0.08 mm. In particular, a hotmelt adhesive that has a high level of heat resistance is used as the adhesive. This is necessary because the adhesive must first adhere well to the rubber material of the tire. During the painting process and the subsequent drying process in a heated cabin, temperatures of over 40 ° C up to 60 ° C or even over 70 ° C can be reached. Here the adhesive must retain its adhesive strength. At the same time, however, the adhesive must again be removable from the flank of the tire with little effort and, if possible, without adhesive residue when the rim is completely painted.

The adhesive is particularly preferably designed as an adhesive layer as a transparent adhesive layer. In particular, a transparent hot-melt pressure sensitive adhesive is used. In particular, it is based on synthetic rubber. In particular, the adhesive layer has an initial adhesion greater than 20 Newtons. The adhesive force is particularly preferably greater than 20 Newtons per 25 mm, in particular greater than 22 Newtons per 25 mm. The adhesive force is measured after a contact time of, for example, 20 minutes according to FDM1, to glass.

The adhesive layer is preferably arranged on a rear side, that is to say on a side which is directed towards the tire sidewall. For masking, a peel-off tape is pulled off, then the plug-in area is inserted between the rim flange and the tire flank and then the annulus segment is glued onto the flank of the tire, which is at least partially covered in the radial direction. Alternatively, a further cover film or a cover tape can cover the tire here, so that the back is glued to the cover tape so that the tread or the radially outer part of the flank is not painted or covered with spray mist.

The peel-off tape itself can also be referred to as a liner. This very particularly preferably has a thickness between 100 and 150 μm, in particular between 130 and 140 μm. Furthermore, the peeling tape has a weight per unit area of 100 to 150 g / m ² , very particularly preferably 130 to 140 g / m ² . In particular, if the pull-off tape is arranged in the plug-in area, good rigidity thus results for the plug-in process between the rim flange and the tire. As an alternative or in addition, a front side of the cover tape can also have an adhesive layer. It is thus possible to insert the masking tape between the rim and the tire and then to glue a film or paper to the front, which is then placed over the tread of the tire up to the opposite side of the tire.

Again, as an alternative or in addition, the radially circumferential outer side edges of a respective circular ring segment can also be provided with an adhesive layer. This makes it possible to overlap two adjacent circular ring segments in this side edge and to glue them together.

A further component is thus a masking arrangement or a masking system, consisting of several circular ring segments, so that a completely radially circumferential flank of a tire is covered for painting a rim.

Further advantages, features, properties and aspects of the present invention are the subject of the following description. Preferred design variants are shown in schematic figures. These serve to make the invention easier to understand. Show it:

Figure 1 is an inventive ring segment of a rim

Masking tape in plan view,

Figure 2 is a cross-sectional view through a rim with tires,

FIG. 3 shows a cross-sectional view through a circular ring segment according to FIG

Figure 1,

Figure 4 shows a rim with tires and several attached

Annular segments in front view,

Figure 5 shows an alternative to Figure 4 and

FIG. 6 shows a cross-sectional area according to FIG. 2 with an additional hood.

Figure 1 shows an inventive circular ring segment 1 of the rim cover tape in plan view. The circular ring segment 1 is formed with a radius 2, the is selected in particular as a function of the inch size of the respective rim 13. For example, a specified rim cover tape suitable for this inch size can be provided for each inch size. According to the invention, however, it has also been shown that it is possible to use two to three inch sizes, for example from 13 to 15 inches, 16 to 18 inches and 19 to 22 inches, in each case one size of the rim cover tape, which is attached to the corresponding Adjusts the diameter with the subsequent masking process with sufficient precision that a complete flinter gripping of the rim flange 4 is made possible.

A plug-in area 3 is provided in the inner radial direction, which, according to FIG. 2, is inserted between the rim flange 4 and flank 5 of the tire 7 at the illustrated insertion position 6 in such a way that the rim flange 4 engages behind at least in the optically visible area, without in particular the flank 5 of the tire 7 must be pressed from the rim 13. Following this, the circular ring segment 1 is then glued to the flank 5 with an adhesive area 8, that is to say an area in which an adhesive layer 11 is applied, and fixed to it. The plug-in area 3 then at least partially engages behind the rim flange 4 and ensures that no spray mist or paint gets onto the rubber or the flank 5 of the tire 7.

Figure 3 shows a cross-sectional view through the circular ring segment 1 of the rim cover tape according to the invention. A carrier layer 9 is provided here. The carrier layer 9 preferably forms the circular ring segment 1 in terms of area. The carrier layer 9 preferably has a thickness D9 of 0.05 mm to 0.3 mm, very particularly preferably 0.1 mm to 0.15 mm and in particular 0.1 to 0.12 mm. The carrier layer 9 itself is preferably a plastic-based film. This ensures high tear resistance and resistance to mechanical abrasion, in particular grinding. As shown here, the plug-in area 3 lying on the inside in relation to the radial direction can also have a plug-in foil 10. The push-in film 10 preferably has a thickness D10 of 0.05 mm to 0.15 mm, particularly preferably 0.09 mm to 0.14 mm, particularly preferably 0.09 mm to 0.11 mm. The plug-in film 10 is also based on plastic, in particular as a PVC film or PE film. This provides sufficient dimensional stability for the insertion process guaranteed. At the same time, however, there is flexibility due to the plastic material, so that the plug-in area 3 can adapt to the flank 5 and / or the condition of the rim flange 4. For an embodiment variant improved here, the circular ring segments 1 themselves can be convex or concave in relation to the actual curvature of the radius. This can be advantageous in particular in the case of very special rim arrangements. With the convex or concave arrangement, however, there are also increased production costs for setting up. The push-in film 10 is preferably firmly glued to the carrier layer 9 so that it is not accidentally pulled off. Furthermore, an adhesive layer 11 is then provided and a peel-off film or a peel-off tape 12 is applied to the adhesive layer 11 in the delivery state. This pull-off tape 12 is pulled off either before or after the plugging process and then, not shown in detail, glued to the flank of the tire. The push-in film 10 can also be designed as a peel-off tape and can be detachably coupled to the carrier layer 9 via the adhesive layer 11. In this case there is a gap 18 between the peel-off tape of the adhesive area and the peel-off tape of the plug-in area.

The adhesive layer 11 preferably has a thickness D11 of 0.02 mm to 0.08 mm, particularly preferably 0.04 mm to 0.07 mm.

Furthermore, the plug-in area 3 extends over a flea FH3 of preferably greater than or equal to 3 mm, in particular greater than or equal to 4 mm, preferably 10 to 15 mm, in particular 12 mm, in the radial direction R. The flea FH 16 of the cover area 16 extends in particular over 40 mm up to 200 mm, preferably 50 mm to 200 mm, in the radial direction (R), preferably more than 45 mm to 65 mm, very particularly preferably more than 55 mm. This means that all common rim sizes can be covered all around. The fleas FH8 of the peel-off tape 12 or of the adhesive area 8 results from the fleas FH 16 minus FH3.

FIG. 4 shows a front view of a rim 14 with tire 7. Six circular ring segments 1 are arranged radially circumferentially so that the flank 5 of the tire 7 is covered radially circumferentially. Any gaps running radially around are only used to illustrate the idea of the invention. In reality, the annulus segments overlap in these areas. Outward in relation to the radial direction the flank 5 can be completely covered or, as shown here, only partially covered. The rest of the flank 5 and / or the running surface 14 can be covered by a film or also a paper, which in turn is glued to the circular ring segment 1. For this purpose, an adhesive layer can also be applied to a front side 15, not shown in more detail in FIG. 3, so that a peel-off tape is also pulled off here and then the film or paper can simply be glued to the front side 14 of the circular ring segment 1. According to the invention, a type of hood can also be used, similar to a hood that doctors wear in operating theaters to cover the head, for example. This hood can be slipped over the running surface 14 of the tire 7 with a rubber coating on both sides and then at least partially cover the annulus segment 1 directed inward in the radial direction R. Thus, by simply applying the hood, time can again be saved, since the running surface 14 of the tire 7 does not have to be masked off again with foil or paper. The hood can be used several times if necessary. The critical area towards the rim flange 4 is, however, according to the invention, simply, quickly and precisely masked off with the circular ring segments 1.

FIG. 5 shows a modification of FIG. 4. The circumferential circular ring segments are arranged circumferentially in such a way that they each overlap in an overlap area Ü. A residual section then remains, shown on the circular ring segment 1 R, in that a circular ring segment is shortened, for example by cutting it off with scissors. The remaining remnant, not shown in detail, can, however, be used again for a further masking process for a further rim.

FIG. 6 shows a cross-sectional view analogous to FIG. 2. Here, a respective rim tape was arranged on both sides. Since the tread and an upper part of the tire 7 would sometimes remain free, it cannot be shown, for example masked with adhesive tape and / or foil, or a masking paper. Alternatively, a type of hood 17, shown here, could also be pulled over. The hood then in turn covers the circular ring segments 1 on the outside and the running surface 14 of the tire 7 around the circumference. The hood 17 can be used several times. References:

1 - Annular segment 1 R Annular segment

2 - radius

3 - mating area

4 - rim flange

5 - edge to 7

6 - insertion position

7 - tires

8 - adhesive area

9 - carrier layer 10 - push-in film

11 - adhesive layer

12 - peel tape

13 - rim

14 - running surface to 7

15 - front

16 - coverage area

17 - hood

18 - gap

D9 - thickness to 9

D10 - thickness to 10

D11 - thickness to 11

R radial direction H3 height to 3

H8 height to 8

H16 height to 16

Ü Overlap area

Claims

1. Rim masking tape, in particular for motor vehicle rims, having a

Carrier layer (9) and at least regionally an adhesive layer (11), characterized in that the cover tape is designed as a circular ring segment (1) such that several

Annular segments (1) can be plugged radially circumferentially between the rim flange (4) and the tire (7) and at least partially cover a flank (5) of the tire (7).

2. Rim cover strip according to claim 1, characterized in that no adhesive layer (11) is arranged on the inside relative to the radial direction (R), so that a plug-in area (3) is formed, the plug-in area (3) preferably larger than 3mm, in particular larger is formed equal to 4mm in the radial direction (R), particularly preferably between 10 and 15 mm.

3. Rim cover tape according to claim 1 or 2, characterized in that the adhesive layer (11) is formed on a rear side, such that the cover tape can be glued to the flank (5) of the tire (7).

4. rim cover tape according to one of claims 1 to 3, characterized in that the adhesive layer (11) is formed on a front side (15), in particular only on an outer area in the radial direction (R).

5. Rim masking tape according to one of the preceding claims, characterized in that the adhesive layer (11) is formed on a side edge in such a way that two adjacent circular ring segments (1) can be glued together overlapping in an overlap region (Ü).

6. rim cover tape according to one of the preceding claims, characterized in that the carrier layer (9) is a composite film, preferably made of a plastic film and an aluminum foil.

7. Rim cover strip according to one of the preceding claims, characterized in that the carrier layer (9) has a thickness (D9) of 0.05 mm to 0.3 mm, particularly preferably 0.09 to 0.12 mm, very particularly preferably 0, 1 to 0.15 mm.

8. Rim cover tape according to one of the preceding claims, characterized in that the adhesive layer (11) is a flaft adhesive, in particular a flotmelt adhesive with a temperature resistance of -40 ° C to + 80 ° C.

9. rim cover tape according to one of the preceding claims, characterized in that the adhesive of the adhesive layer (11) has an adhesive force greater than 30N per 25mm.

10. Rim cover tape according to one of the preceding claims, characterized in that a peel-off tape (12) is glued onto the adhesive layer (11).