WO2022002532A1

WO2022002532A1 - Method for repairing a vehicle body part and offsetting tool having a spindle drive

Info

Publication number: WO2022002532A1
Application number: PCT/EP2021/065199
Authority: WO
Inventors: Matthias Tittel; Nils Störmer; Helmut Hoher
Original assignee: Man Truck & Bus Se
Priority date: 2020-06-29
Filing date: 2021-06-08
Publication date: 2022-01-06
Also published as: EP4171864A1; DE102020117015A1

Abstract

The invention relates to a method for repairing damage (1) in a body part (2) of a vehicle with the aid of a replacement part (3). The method comprises removing (S1) a region affected by the damage from the body part, offsetting (S2) a peripheral region, adjoining the removed region, of the body part, and attaching (S3) the replacement part such that the replacement part and the body part overlap in the offset peripheral region. It is provided here that the offsetting of the body part is carried out with the aid of at least one offsetting tool (10; 20) which comprises working jaws (10b, 10c; 20b, 20c), which are movable with respect to one another via a spindle drive (10a; 20a), for offsetting an edge. The invention also relates to a corresponding offsetting tool for offsetting an edge in a body part, wherein the offsetting tool comprises at least one spindle drive and two working jaws, which are movable with respect to one another via the spindle drive and between which the body part is able to be positioned.

Description

Repair procedure for a body part and stripping tool with spindle drive Description

The invention relates to a method for repairing damage in a body part of a vehicle and a setting tool for setting an edge in a body part.

In connection with the repair or overhaul of vehicle body parts, it is known in principle in the prior art to provide the edge of one of the sheet metal parts with a step for a flush connection of two sheet metal parts. Here, the edge of one sheet metal part is stepped approximately by the thickness of the other sheet metal part, so that the two sheet metal parts can be placed against one another in an overlapping manner without a joint emerging on the outside of the connection point.

As a rule, manually operated stripping pliers are used for this, as they are known from DE 35 35 302 A1, for example. However, due to the limited manual force, such stripping pliers often have only small depositing depths and / or depositing heights, which is why such stripping tongs are usually only suitable for repairing small body areas.

Accordingly, in connection with the repair or the removal of larger body areas - as z. B. omnibus roofs that have been damaged by grazing or falling branches is the case - a need for an improved and / or alternative alternative solution with which the disadvantages of conventional techniques can be avoided NEN.

The object of the invention is therefore to provide such an improved or alternative solution. In particular, it is the object of the invention to provide a solution by means of which large-area damage to body parts can be quickly and safely removed, preferably using handy tools or equipment.

These objects can be achieved with the features of the independent claims. Advantageous embodiments and applications of the invention are the subject of the dependent claims and are explained in more detail in the following description with partial reference to the figures. According to a first independent solution idea, a method for repairing damage in a body part of a vehicle is provided, the repair being carried out with the aid of a replacement part.

The method includes removing an area affected by the damage from the body part. This can be done, for example, by milling out, drilling out, cutting out and / or punching out the corresponding area.

Furthermore, the method comprises setting down an edge area of the body part that is adjacent to the removed area for a flush attachment of the replacement part. In this context, “settling” can be understood - according to the usual understanding - to mean the shaping of a, preferably step-shaped, settling edge in the edge region of the body part. The height of this offset edge preferably corresponds essentially to the thickness of the replaceable part.

Furthermore, the method includes attaching the replacement part so that the replacement part and the body part overlap in the remote edge area, the replacement part preferably being attached by gluing. In addition or as an alternative, however, the attachment of the replacement part can also include soldering and / or welding of the replacement part.

According to the invention it is now provided that the aforementioned setting down of the body part takes place with the aid of at least one, preferably portable, setting tool, the at least one setting tool comprising work jaws that can be moved against one another via a spindle drive for setting an edge. In other words, the at least one setting tool can also be understood as a type of screw press, in which a rotary movement of a threaded spindle of the spindle drive is converted into a translational movement of the working jaws. In an advantageous manner, higher pressing forces can be achieved in comparison to commercially available, hand-operated stripping pliers, and broader edge areas can thus also be deposited in a short time. This also advantageously enables large replacement parts to be attached quickly and safely.

According to a first aspect of the invention, the at least one setting tool can have a setting depth of at least 20 mm, preferably at least 40 mm, particularly preferably at least 50 mm. According to the usual understanding, the maximum achievable expansion of the - predetermined by the jaw shape - is to be used as the "abutment depth" be understood offset area from the edge of the body part, ie the maximum achievable distance of the offset edge from the body part edge. In an advantageous manner, large edge areas can be deposited or a large overlap between the replacement part and the body part is made possible, whereby the overall strength and long-term stability of the replacement part-body part connection can be increased.

According to a further aspect of the invention, the step of setting down can include driving the spindle drive by means of a cordless screwdriver, preferably by means of a torque-controlled cordless screwdriver, and / or a hand drill. In other words, the torque introduced into the spindle drive, which is converted by it into a translational movement of the working jaws, can be generated by a cordless screwdriver and / or a hand drill. Preferably, a corresponding connection point, z. B. in the form of a hex head, provided for attaching a cordless screwdriver or a hand drilling machine. In an advantageous manner, the setting down of the body can be carried out in part with equipment that is usually available in workshops.

According to a further aspect of the invention, in order to remove the area affected by the damage, a through opening with a predetermined, ie previously defined, opening cross section can be made in the body part. In other words, the area affected by the damage should not be removed in any way, rather a through opening - which can also be referred to as a recess or breakthrough - should preferably be created with a predetermined shape. In this way, a defined starting point or a defined starting geometry can be created for the further work steps in an advantageous manner - proceeding from an initially arbitrarily constituted damage. Preferably, the edge of the predetermined opening cross section should only have straight sections and / or circular arc sections. For example, the predetermined opening cross-section can be a rectangular opening cross-section with (circular arc-shaped) rounded corners. The advantage of this configuration is that only certain or predetermined edge geometries occur (straight and circular arc-shaped) so that - as will be made clear below - a corresponding adjustment or standardization of the setting tool shape for the most effective and time-saving processing possible can be made. Thus, according to a further aspect of the invention, the at least one setting tool can comprise a side setting tool and a corner setting tool. Here, the side setting tool can be designed for setting straight edges, whereas the corner setting tool can be designed for setting down curved, preferably circular, edges. For example, the pressing surfaces of the working jaws of the side settling tool can have an essentially rectangular shape, while the pressing surfaces of the working jaws of the corner settling tool can have an essentially circular sector and / or circular ring sector shape. Correspondingly, the straight sections can be set down using the side setting tool and the circular bowing sections can be set using the corner setting tool. Advantageously, this allows an equal deposition around the entire through opening created who the what in the case of using only a single, z. B. straight Abetzwerk would not be the case, since here in particular the corner areas would not be accessible.

According to a further aspect of the invention, the edge of the through opening can be subdivided into straight sections and circular arc sections with the aid of an angle template before the step of setting down. For this purpose, the angle template can comprise a segment segment whose circular radius preferably corresponds to that of a segment of the circular arc of the through opening. Furthermore, the angle template can comprise two legs that delimit the segment of a circle and are offset in height on the segment of a circle. In the case described above, in which the opening cross-section of the through-opening in the body part is a rectangular opening cross-section with circularly rounded corners, the two legs can preferably assume an angle of 90 °. With the help of the construction described above, when inserting or attaching the angle template in the corners or the Kreisbogenabschnit th of the passage opening at the points specified by the legs, markings (z. B. pencil markings) can then be set in a simple manner Under division of the edge of the through opening into straight sections and circular arc sections can be done.

According to a further aspect of the invention, the step of setting down can include the introduction of consumer beads into the edge region of the body part. According to the usual understanding, “consumer beads” denote folds in the body part that are preferably perpendicular to the surface normal to reduce material stresses. These can be, for. B. through corresponding recesses and / or cutouts Formings which are introduced into the body part in the pressing surfaces of the working jaws of the at least one Abetzwerk. In other words, the working jaws or their pressing surfaces can be designed so that when the working jaws are closed, at least one consumer bead is embossed into the body part.

In addition or as an alternative, the body part can be mounted in the vehicle during the lowering step. In other words, the body part should continue to be in its intended installation position in the vehicle while it is being set down. In this way, it is advantageously possible to dispense with the complex dismantling of the entire body part for repairs.

In addition or as an alternative, the attachment step can also include gluing the replacement part to the body part. The two parts are preferably glued in the offset edge area of the body part, with the offset edge area being able to be roughened and / or abraded beforehand. By gluing the replacement part to the body part, a simple way of attaching or fastening the replacement part is advantageously provided, for which no unwieldy additional devices (such as a welding device) are required and which are therefore more difficult to access, especially for repairs Places, e.g. B. on the vehicle roof is suitable.

According to a further aspect of the invention, the body part can be a sandwich structure element which is composed of at least an outer cover layer, an inner cover layer and a core layer lying between the outer and inner cover layers. Such three-layer composite structures in sandwich construction are known in principle in the prior art. Preferably, the outer and / or inner re cover layer made of a metal, for. B. aluminum, while the core layer is given before given to a foam, z. B. a polyurethane (PUR) rigid foam, can be made. In the event that the body part is a sandwich structure element described above, at least one removal of the outer cover layer can take place in the removal step. However, in order to advantageously achieve a repair result that is as flat as possible on both sides of the sandwich structure element, the step of setting down can additionally include setting down the inner cover layer. The outer cover layer is preferably set off in the direction of the inner cover layer or the inner cover layer is set off in the direction of the outer cover layer. Furthermore, in the event that both the outer cover layer and the inner cover layer are deposited, the replacement part can then also correspondingly be attached to an outer one Cover layer replacement part on the stepped edge area of the outer cover layer as well as an attachment of an inner cover layer replacement part to the stepped edge area of the inner cover layer.

According to a further aspect of the invention, the aforementioned sandwich structure element can be part of a roof structure of a vehicle, preferably part of a roof structure of a bus. For example, the outer cover layer of the sandwich structure element can form the outer boundary or outer wall of the roof structure of the vehicle, with a lacquer layer preferably also being able to be applied to the outer cover layer.

According to a further aspect of the invention, the step of removing can also include removing the core layer below the edge region to be deposited. For example, this can be done by milling out the corresponding edge region of the core layer. Since this removes a larger area from the core layer than from the cover layer or layers, this step can also be referred to as resetting the core layer. Advantageously, this enables the corresponding edge regions of the cover layer (s) to be deposited as unhindered as possible, or improves accessibility to the aforementioned at least one stripping tool.

According to a further aspect of the invention, the method can comprise attaching a core-layer replacement part. In other words, to restore the original sandwich structure in the area affected by the damage - in addition to attaching an outer and / or inner cover layer replacement part in the area of the removed outer and / or inner cover layer - also attaching a core layer Exchange part in the area of the removed core layer. The core-layer replacement part can have a larger cross-section than the corresponding cross-section of the area removed from the outer cover layer. That is, in a plane perpendicular to the surface normal of the sandwich structure element, the core layer replacement part can be dimensioned larger than the area that was removed from the outer cover layer. This is particularly advantageous if parts of the core layer below the edge area to be deposited have also been removed or milled out beforehand, ie a larger area has been removed from the core layer than from the outer cover layer, since this area is then also completely re-opened by the core layer replacement part can be filled. In order to facilitate the attachment to the sandwich structure element, the core layer interchangeable part can also or alternatively also have a plurality of molded part segments include, from which the core layer replacement part can be assembled like a puzzle. In this way, the molded part segments can advantageously be guided one after the other through the corresponding opening in the cover layer and then assembled or glued at their destination.

According to a further aspect of the invention, a method for repairing damage in a roof body part of a bus is provided, in which the damage is repaired according to a method as described in this document.

Furthermore, a setting tool is provided for setting an edge in a, preferably flat, body part, which is to be disclosed and claimed as an object per se. The stripping tool is preferably a handy and / or portable stripping tool, ie. H. a stripping tool that can be carried around by one person - without great stress. The setting tool comprises at least one spindle drive and two working jaws which can be moved against one another via the spindle drive and between which the body part can be positioned. The working jaws furthermore each comprise mutually corresponding pressing surfaces with a shoulder, the pressing surfaces being formed so that when the working jaws are closed, a preferably stepped edge is embossed into the body part. By using a spindle drive according to the invention to press the working jaws against one another, higher pressing forces can be achieved in an advantageous manner compared to commercially available, hand-operated stripping pliers, and broad edge areas can thus also be deposited in a short time.

In a further development, the setting tool can comprise at least two, preferably three, spindle drives for moving the working jaws. In an advantageous manner, even pressing of the working jaws or pressing surfaces can thereby be achieved even with large pressing surfaces.

In addition or as an alternative, the pressing surfaces can also be designed in the shape of a circular sector and / or a circular ring sector. The respective shoulder of the pressing surface preferably also has a curved and / or circular arc shape. In an advantageous manner, a (corner) setting tool is thereby created which is particularly designed for setting down curved and / or circular arc-shaped edges.

In addition or as an alternative, at least one pressing surface can have an embossing, e.g. B. in the form of a recess and / or formation to include a consumer bead. on Advantageously, when the body part is set down in the same work step, a corresponding fold to reduce material stresses (consumer bead) can be produced on the body part.

In addition or as an alternative, the spindle drive can comprise a spindle in which a preferably hexagonal connection point for driving by means of an Ak screwdriver and / or a hand drill is attached in one end area. In addition or as an alternative, this connection point can also be designed for driving by means of a ratchet wrench and / or screw wrench. In an advantageous manner, the setting down of the body part can be carried out with equipment usually available in workshops who the.

The aspects and features of the invention described above can be combined with one another as desired. Further details and advantages of the invention are described below with reference to the accompanying drawings. Show it:

FIG. 1A: a schematic representation of damage in a body part of a vehicle;

FIG. 1B: a schematic sectional illustration of a body part designed as a sandwich structure element;

FIG. 2: a schematic flow diagram of a method for repairing a damage in a body part of a vehicle with the aid of a replacement part 3 according to an embodiment of the invention;

FIG. 3: a schematic exploded view of a body part repaired in accordance with an embodiment of the method according to the invention;

FIG. 4A: a schematic sectional illustration of the body part shown in FIG. 3 along the line marked in FIG. 3;

FIG. 4B: a schematic detailed view of the outer cover layer in the area marked in FIG. 4A; FIG. 5A: a schematic representation of the setting down of an edge region of a body part with the aid of a setting tool according to a first embodiment of the invention;

FIG. 5B: a schematic representation of the setting tool according to the first embodiment of the invention;

FIG. 6A: a schematic representation of the setting down of an edge region of a body part with the aid of a setting tool according to a second embodiment of the invention; and

FIG. 6B: a schematic representation of the setting tool according to the second embodiment of the invention.

Identical or functionally equivalent elements are denoted by the same reference symbols in all figures and in some cases are not described separately.

Figure 1A shows a schematic representation of damage 1 in a body part 2 of a vehicle, which z. B. can be repaired ren with the repair procedure described in this document. In the case of the damage 1 is present - only by way of example - a, z. B. knocked out by a falling object, hole in the body part 2. The body part 2 itself can, for. B. be a sheet metal part or a sandwich structure element, the special structure of which will be discussed below.

FIG. 1B shows a schematic sectional illustration of a body part 2 designed as a sandwich structure element. The sandwich structure element comprises at least one outer cover layer 2a, an inner cover layer 2b and a core layer 2c located between the outer and inner cover layers 2a, 2b. The terms “outer” and “inner” are primarily used to differentiate between the two cover layers 2a, 2b and therefore do not have to correspond to an actual installation position in the vehicle. In individual cases, the “outer” cover layer 2a can also be used, for. B. be an interior trim of a vehicle. Preferably, the outer cover layer 2a and / or the inner cover layer 2b made of egg nem metal, for. B. aluminum, while the core layer 2c is preferably made of a foam, for. B. a polyurethane (PUR) rigid foam, can be made. The aforementioned three-layer composite structures in sandwich construction are known in principle in the prior art, with use here in particular as an external roof for omni- io bussen should be emphasized. Due to this exposed attachment to the vehicle, derar term sandwich structure elements are often exposed to unprotected environmental influences, which leads to corresponding damage 1 of these components, eg. B. by hail or falling branches. A repair method is provided in this document to mend such damage.

FIG. 2 shows a schematic flow diagram of a method for repairing damage 1 in a body part 2 of a vehicle with the aid of a replacement part 3 according to an embodiment of the invention. In step S1, an area 4 affected by the damage 1 is removed from the body part 2. This can be done, for example, by milling out, drilling out, cutting out and / or punching out the corresponding area 4. To remove the area 4 affected by the damage 1, a through opening, preferably with a predetermined opening cross section, can also be made in the body part 2. In the event that the body part 2 is a, z. B. is schematically shown in Figure 1B, sandwich structure element, step S1 can also include introducing a through opening extending from the outer cover layer 2a to the inner cover layer 2b in the sandwich structure element.

In step S2, an edge area 2.1 of the body part 2 adjoining the removed area 4 is set down for a flush attachment of the replacement part 3. According to the usual understanding, a "flush attachment" can be understood as an attachment in which the outer surfaces of the The offset body part 2 and the attached replacement part 3 merge into one another in an aligned or planar manner, that is to say that no impact or a step occurs on the outside of the connection point. For this purpose, the settling is preferably carried out with a settling height h _a which essentially corresponds to the thickness of the replacement part 3.

The setting down of the body part 2 in step S2 should also be done using at least one, preferably portable, setting tool 10; 20 take place via a spindle drive 10a; 20a working jaws 10b, 10c; 20b, 20c for placing a, preferably step-shaped, edge. By means of this spindle-driven at least one settling tool 10; 20 - which will be described in more detail in connection with FIGS. 5B and 6B - can be achieved in an advantageous manner, in comparison to commercially available, hand-operated stripping pliers, high pressing forces, so that in Even deep edge areas 2.1 can be deposited in a short time, as is necessary in particular for a corresponding attachment of large replacement parts 3.

In step S3, the replacement part 3 is attached, e.g. B. a molded part, so that the replacement part 3 and the body part 2 overlap pen in the remote edge area 2.1. The replacement part 3 can be attached, for example, by gluing, soldering and / or welding on the replacement part. The exchange part 3 preferably has a contour that corresponds to the contour of the offset edge area 2.1 of the body part 2, so that the exchange part 3 can be inserted as completely as possible into the area delimited by the offset edge.

Figure 3 shows a schematic exploded view of a repaired location of a body part 2 according to an embodiment of the method according to the invention .

In the course of the repair that had already been carried out, a through opening reaching through from the outer cover layer 2a to the inner cover layer 2b was made in order to remove an area 4 of the sandwich structure element affected by damage 1. The through-opening here has a predetermined opening cross-section in the form of a rectangular opening cross-section with rounded corners, so that the edge of the predetermined opening cross-section alternately comprises only straight sections 4a and circular arc sections 4b. Furthermore, in order to enable an edge region 2.1 of the outer cover layer 2a that is adjacent to the passage opening to be deposited as unhindered as possible, which is described in greater detail below, an edge region of the core layer 2c adjacent to the passage opening, e.g. . B. by 50 mm. This can e.g. B. be done by milling out the corresponding edge region of the core layer 2c. Since the edge of the outer and inner cover layer 2a, 2b adjoining the removed area 4 protrudes over the edge of the core layer 2c, this can also be referred to as a “reset” of the core layer 2c.

Furthermore, in order to enable a replacement part 3 (e.g. an aluminum sheet metal part) to be fitted flush with the surface as possible, an edge region 2.1 of the outer cover layer 2a bordering on the distant region 4 was deposited, as is the case, for example, in FIG. B. in Figure 4B still- times is shown in detail. In other words, the outer cover layer 2a of the sandwich structure element has a gradation, as a result of which an edge region 2.1 of the outer cover layer 2a adjoining the through opening is less spaced from the opposite inner cover layer 2b than the remaining areas of the outer cover layer 2a. The set-off edge that is introduced is preferably at a distance (set-off depth) of at least 20 mm, preferably at least 40 mm, from the edge of the body part. Furthermore, the settling height h _a , ie the height of the gradation, should preferably essentially correspond to the thickness of a replaceable part 3 attached to the outer cover layer 2a to close the passage opening. This replacement part 3 also has a rectangular cross-section with rounded corners and is dimensioned in such a way that the replacement part 3 can be completely inserted into the area delimited by the offset or gradation in order to close the passage opening to the outside as flat as possible .

In addition to the replacement part 3, which will be referred to below as the outer cover layer replacement part 3 for better differentiation, a core layer replacement part 5 (e.g. a foam molded part) and an inner one were also used to seal the previously removed area 4 Cover layer replacement part 6 (z. B. an aluminum sheet metal part) attached to the sandwich structure element. The core layer exchange part 5 and the inner cover layer exchange part 6 both have a cross section which corresponds to that of the exchange part 3. Since the core layer replacement part 5 thus has a greater overall lateral extent than the through opening in the outer or inner cover layer 2a, 2b (in order to also close off the previously removed or milled out areas below the offset edge area 2.1), attachment is made easier or inserting the core layer replacement part 5 is provided that this comprises a plurality of mold part segments 5i, 5 ₂ , ... 5 ₇ , from which the core layer replacement part 5 can be assembled in a puzzle-like manner. For this purpose, the core layer replacement part 5 in the present case comprises seven molded part segments 5i, 5 ₂ ,... 5g, which can be attached to the sandwich structure element one after the other. The inner cover layer replacement part 6 is here identical to the outer cover layer replacement part 3, the inner cover layer replacement part 6 being attached (e.g. glued) to the inner cover layer 2b without a corresponding gradation in the connection area the inner cover layer 2b is attached, which is illustrated again below with reference to FIG. 4A. FIG. 4A shows a schematic sectional illustration of the body part 2 or sandwich structure element shown in FIG. 3 along the line shown in dashed lines in FIG. In this case, FIG. 4A shows in detail the area of the body part 2, which has previously shown damage 1, which is closed again after the repair has been carried out. In particular, an outer cover layer replacement part 3 is shown here, which was attached in an overlapping manner to a stepped edge area 2.1 (see FIG. 4B) of the outer cover layer 2a. Since the deposition of the outer cover layer 2a took place with a deposition height h _a which essentially corresponds to the thickness of the outer cover layer replacement part 3, an outwardly flat or flush attachment of the outer cover layer replacement part 3 is advantageously made possible. without a joint emerging on the outside of the connection point. Furthermore, the sectional view of FIG. 4A shows the molded part segments 5, ₂ , 5s and 5g of the core layer replacement part 5, which replaces the previously removed areas of the core layer 2c arranged between the outer and inner cover layers 2a, 2b. The sectional illustration here again makes it clear that the core layer replacement part 5 also extends in the lateral direction below the offset edge area 2.1. The area removed from the inner cover layer 2b was closed in the present case by attaching an inner cover layer replacement part 6, which in the present case was merely placed or glued onto the inner cover layer 2b, without here, as in the case of the outer cover layer 2b, a corresponding withdrawal has been made. However, in order to achieve as flat a repair result as possible on both sides of the sandwich structure element, if necessary and without leaving the scope of the invention, the inner cover layer 2b can be removed accordingly. In the case shown here, all of them were attached From exchangeable parts 3, 5 and 6 in this case by appropriate gluing, which is to be illustrated in FIG. 4A by the glued points highlighted in black.

FIG. 4B shows a schematic detailed view of the outer cover layer 2a in the area marked with a dashed line in FIG. 4A. The outer cover layer 2a has a deformation in the form of a step or offset edge, with an edge area 2.1 of the outer cover layer 2a adjacent to the through opening being offset by the height h _a in the direction of the inner cover layer 2b (not shown).

FIG. 5A shows a schematic representation of the process of setting down an edge region of a body part 2 with the aid of a setting tool 10 according to a first embodiment of the invention. In the present case, the ab- setting tool 10 around a portable setting tool 10, which is preferably designed to set down just the edges and will also be referred to below as a side setting tool. As is illustrated again in FIG. 5B, the setting tool 10 comprises a spindle drive 10a and two working jaws 10b and 10c which can be moved relative to one another via the spindle drive 10a and between which the body part 2 can be positioned (see FIG. 5A). The working jaws 10b and 10c further comprise mutually corresponding pressing surfaces 10bi, 10ci with a shoulder 10b ₂ , 10c ₂ , the corresponding pressing surfaces 10bi and 10ci being designed so that when the working jaws 10b, 10c are closed, a preferably step-shaped edge in an inserted body part 2 is embossed. According to the present embodiment, the pressing surfaces 10bi, 10ci of the working jaws 10b, 10c of the side setting tool 10 should have an essentially rectangular shape, whereby the side setting tool 10 is particularly suitable for setting the straight sections 4a of the edge of the through opening.

FIG. 6A shows a schematic representation of the process of setting down an edge region of a body part 2 with the aid of a setting tool 20 according to a second embodiment of the invention. Here, too, it is in the case of the Abetzwerk tool 20 to a portable Abetzwerk 20, ie to a Stripping tool 20, which can be carried around by a person - without great stress. The present Ab setting tool 20 is preferably designed for setting down curved, in particular circular arc-shaped, edges and is therefore also referred to below as a corner setting tool 20. As is also illustrated again in FIG. 6B, the setting tool 20 includes three spindle drives 20a and two working jaws 20b and 20c which can be moved towards one another via the three spindle drives 20a and between which the body part 2 can be positioned (see FIG. 6A). The working jaws 20b and 20c of the corner setting tool 20 each have corresponding pressing surfaces with one shoulder each, only the pressing surface 20ci of the working jaws 20c being visible in the present illustration. Here, too, the corresponding pressing surfaces are designed so that when the working jaws 20b, 20c are closed, a preferably step-shaped edge is embossed into an inserted body part 2. In contrast to the side stripping tool 10 shown in FIGS. 5A and 5B, in the present corner stripping tool 20, the pressing surfaces of the working jaws 20b, 20c have an essentially circular-sector and / or circular-ring-sector shape. In particular, the respective shoulder of the pressing surfaces should also have a curved and / or circular arc-shaped course. In an advantageous manner, a (corner) stripping tool 20 is thereby created. fen, which is formed out especially for placing curved and / or circular arc-shaped edges and is therefore particularly suitable for placing the circular arc-shaped sections 4b of the edge of the through opening.

Through the combined use of the two aforementioned settling tools 10, 20, an equally deep settling around the entire through opening can be created in an advantageous manner, whereby due to the inventive use of a spindle drive 10a, 20a for pressing the working jaws 10b, 10c; 20b, 20c, compared to commercially available, hand-operated stripping pliers, higher pressing forces can be achieved, which means that even deep edge areas of over 50 mm can be deposited. Although the invention has been described with reference to particular exemplary embodiments, it will be apparent to a person skilled in the art that various changes can be made and equivalents used as replacements without departing from the scope of the invention. Accordingly, it is intended that the invention not be limited to the disclosed exemplary embodiments, but that it encompass all exemplary embodiments that fall within the scope of the appended claims. In particular, the invention also claims protection for the subject matter and the features of the subclaims independently of the claims referred to.

List of reference symbols

1 damage

2 body part

2a outer cover layer 2b inner cover layer 2c core layer 2.1 edge area

3 exchange part

4 Area removed or to be removed 5 Core layer replacement part

6 Inner cover layer replacement part 10 Stripping tool 10a Spindle drive

10b, 10c working jaw 10b _! , 10ci pressing surface

10b2, 10c2 paragraph 20 stripping tool 20a spindle drive

20b, 20c working jaw 20bi, 20ci press surface

20b2, 20C2 paragraph

Claims

1. A method for repairing damage (1) in a body part (2) of a vehicle using a replacement part (3), the method comprising the steps of:

- Removing an area (4) affected by the damage (1) from the body part (2);

- Deposition of an edge area (2.1) of the body part (2) adjoining the removed area (4) for flush mounting of the replacement part (3);

- Attaching the interchangeable part (3) so that the interchangeable part (3) and the body part (2) overlap in the remote edge area (2.1); characterized in that the body part (2) is set down with the aid of at least one, preferably portable, set-off tool (10; 20), the at least one set-off tool (10; 20) being able to move against one another via a spindle drive (10a; 20a) , 10c; 20b, 20c) for placing a preferably stepped edge.

2. The method according to claim 1, characterized in that the at least one setting tool (10, 20) has a setting depth of at least 20 mm, preferably at least 40 mm, particularly preferably at least 50 mm.

3. The method according to any one of the preceding claims, characterized in that the step of settling comprises driving the spindle drive (10a; 20a) by means of an Ak screwdriver, preferably by means of a torque-controlled cordless screwdriver, and / or a hand drill.

4. The method according to any one of the preceding claims, characterized in that to remove the area (4) affected by the damage (1) a Durchgangsöff voltage with a predetermined opening cross-section is introduced into the body part (2), the edge of the predetermined opening cross-section only has straight sections (4a) and / or circular arc sections (4b).

5. The method according to claim 4, characterized in that the predetermined opening cross section is a rectangular opening cross section with rounded corners.

6. The method according to claim 4 or 5, characterized in that the at least one settling tool (10; 20) comprises a side settling tool (10) and a corner settling tool (20), the side settling tool (10) for Set off straight edges is formed and the corner settling tool (20) for settling curved, preferably circular arc-shaped, edges is formed, and the settling of the straight sections (4a) using the side settling tool (10) and the settling of the circular arc sections (4b) by means of the corner settling tool (20) takes place.

7. The method according to any one of claims 4 to 6, characterized in that before the step of settling, the edge of the through opening (4) is divided into straight sections (4a) and circular arc sections (4b) using an angle template.

8. The method according to any one of the preceding claims, characterized in that a) that the step of settling comprises an introduction of consumer beads in the edge area (2.1) of the body part (2); and / or b) that the body part (2) is mounted in the vehicle during the step of setting down; and / or c) that the step of attaching comprises gluing the replacement part (3) to the body part (2);

9. The method according to any one of the preceding claims, characterized in that the body part (2) is a sandwich structure element, which consists of at least an outer cover layer (2a), an inner cover layer (2b) and one between the outer and inner cover layer (2a, 2b ) lying core layer (2c) is built up, whereby in the step of deposition at least one deposition of the outer cover layer (2a) takes place.

10. The method according to claim 9, characterized in that the sandwich structure element (2) is part of a roof structure of a vehicle, preferably part of a roof structure of a bus.

11. The method according to claim 9 or 10, characterized in that the step of removing comprises removing the core layer (2c) below the edge region (2.1) to be deposited.

12. The method according to claim 11, characterized by attaching a core layer replacement part (5), wherein the core layer replacement part (5), a) has a larger cross section than the corresponding cross section of the area removed from the outer cover layer (2a); and or b) comprises several molded part segments (5i, 5 ₂ , ... 5g), from which the core layer replacement part (5) can be assembled in a puzzle-like manner in order to facilitate attachment to the sandwich structure element (2).

13. A method for repairing damage (1) in a roof body part (2) of a bus, in which the damage (1) is repaired according to a method of claims 1 to 12.

14. Stripping tool (10; 20), preferably portable stripping tool (10; 20), for setting down an edge in a, preferably flat, body part (2), comprising:

- At least one spindle drive (10a; 20a); and

- Two working jaws (10b, 10c; 20b, 20c) which can be moved relative to one another via the spindle drive (10a; 20a) and between which the body part (2) can be positioned; wherein the working jaws (10b, 10c; 20b, 20c) each have mutually corresponding pressing surfaces (10bi, 10ci; 20bi, 20ci), with a shoulder (10b ₂ , IOC2; 20b ₂ , 2OC2), which are designed that in a Closing the working jaws (10b, 10c; 20b, 20c) a, preferably step-shaped, edge is impressed in the body part (2).

15. Stripping tool (10; 20) according to claim 14, characterized in that a) that the stripping tool (10; 20) has at least two, preferably three, spindle drives (10a; 20a) for moving the working jaws (10b, 10c; 20b, 20c) includes; and / or b) that the pressing surfaces (10bi, 10ci; 20bi, 20ci) are designed in the shape of a sector of a circle and / or a sector of a ring; and / or c) that at least one of the pressing surfaces (10bi, 10ci; 20bi, 20ci) comprises an embossing for introducing a consumer bead; and / or d) that the spindle drive (10a; 20a) comprises a spindle in which a, preferably hexagonal, connection point for driving by means of a cordless screwdriver, preferably by means of a torque-controlled cordless screwdriver and / or by means of a hand drill, is attached in one end region.