EP4375452A1 - Tool for finishing and smoothing joints - Google Patents

Abstract

The present invention shows a tool (10) for reworking and smoothing joints filled with a joint compound, wherein the tool (10) comprises a substantially plate-shaped body which has an edge running in particular perpendicular to the plane of the plate with differently curved sections. It is provided that the body is constructed in several parts and comprises a first part (1) with a first curved edge section (31) and a second part (2) with a second curved edge section (32), wherein the parts (1, 2) have connecting means (41, 42) for producing a detachable connection to one another.

Description

The present invention relates to a tool for reworking and smoothing joints filled with a joint compound, according to the preamble of claim 1.

Such joints come in a wide variety of shapes and sizes, for example between tiles or between a pane of glass and a frame, and are usually filled with elastic joint compounds such as mortar or silicone for sealing purposes. The joint compound is typically introduced into the joint in a deformable state and hardens after a while. Various tools are known from the state of the art to smooth the joint compound and give the final joint a pleasing visual appearance.

The EP 0 711 887 A1 a tool for reworking joints, which consists of a plate with a surrounding edge that protrudes perpendicularly to the plate plane on both sides. The plate has an essentially triangular shape, with one of the front sides being curved and two of the front sides being straight. The longer of the two straight front sides and the curved front side form an acute angle and merge into one another in an arc shape. so that this rounded corner can be used to remove excess grout and create concave joint surfaces.

In order to expand the spectrum of possible joint shapes and curvatures, the EP 0 810 337 A1 a tool with an essentially boomerang-shaped plate is proposed, which has two rounded corners with different radii of curvature. Due to the sweeping shape of this tool, however, the joint material to be processed can sometimes be difficult or even impossible to access in confined joint environments. In addition, despite the second rounded corner, the number of possible joint shapes is still limited with this tool.

The present invention is therefore based on the object of providing a tool for reworking and smoothing joints filled with joint compound, which tool enables a larger number of joint shapes to be produced and at the same time allows joints to be processed in confined environments.

This object is achieved according to the invention by a tool having the features of claim 1. Advantageous embodiments of the invention emerge from the subclaims and the following description.

Starting from a generic tool with a substantially plate-shaped body and an edge with differently curved sections, it is proposed to construct the body in several parts and to provide a first part and a second part with connecting means, by means of which the parts can be detachably connected to one another. The connecting means are in particular part of the first and second parts, ie no external or separate connecting means are provided for connecting the tool parts. According to the invention, the first part has a first curved edge section and the second part has a second curved edge section, ie each of the detachable Parts include at least one curved edge portion for producing concave shaped joints.

This allows each of the parts to be used as a separate tool for finishing and smoothing joints filled with grout. Compared to a single body, a longer edge area or more corners and thus potentially a larger number of possible edge shapes and curves are available for producing and processing a wide variety of joint shapes. The advantage over separate, permanently separated tools is that the individual tool parts can be assembled into a single body, which makes storage and transport easier. The individual parts cannot easily be lost and there is no need to carry several separate parts. If necessary, the individual parts can be taken apart and used as stand-alone tools, for example in the case of a cramped joint environment where the large, assembled tool would be too bulky.

The assembled body can essentially have a boomerang shape, as is the principle of the EP 0 810 337 A1 This gives the assembled body the additional advantage of ergonomic handling. The pistol grip-like shape when assembled means that the tool can be held safely and comfortably in the hand and guided along the joint to be worked on.

In one possible embodiment, the edge of the plate-shaped body runs at least partially perpendicular to the plate plane, i.e. it is formed at least partially by end faces extending perpendicular to the plate plane. In particular, the edge can run perpendicular to the plate plane in the region of the first and second curved edge sections.

In one possible embodiment, the first and second curved edge sections are curved to different degrees. This allows These edge sections can be used to create joints with differently curved surfaces. The first and/or the second edge section can have a constant curvature with a defined radius of curvature. In this case, the first and second curved edge sections preferably have different radii of curvature.

In a further possible embodiment, it is provided that the edge of the first part comprises a first end face and a second end face, which merge into one another via the first curved edge section. The transition between the first curved edge section and the adjacent end faces is in particular continuous, i.e. without abrupt edges. The first and second end faces and the first curved edge section form sections of the edge surrounding the first part, preferably extend perpendicular to the plate plane of the first part and preferably have a constant width perpendicular to the plate plane.

The first end face preferably has a straight or flat profile in the direction of the edge. Alternatively or additionally, the second end face preferably has a convexly curved profile in the direction of the edge, with the first curved edge section being more curved than the second end face. By continuously transitioning the stronger curvature of the first curved edge section into the less strong or "gentler" curvature of the second end face, a depth of the smoothed joint can be varied as required. For example, the second end face of the first part can be used to create floor joints due to the smaller curvature, while the more strongly curved first edge section or the rounded corner formed thereby between the first and second end faces can be used to create smaller rounded joints, such as bathroom or balcony joints.

In a further possible embodiment, it is provided that the first part has a substantially triangular shape, wherein the first and second End faces preferably enclose an acute angle (0° < α ≤ 90°) with one another. In the case of a convexly curved second end face, this can mean that the first end face encloses an acute angle with a tangent at the transition between the second end face and the first curved edge section, in particular with any tangent at the second end face outside the first curved edge section. The transition between the first curved edge section and the second end face can be characterized by a (preferably continuous or constant) change in the radius of curvature of the edge.

The first and second end faces, which converge and end in the first curved edge section, or the shape of the first part, which tapers towards the first curved edge section, enable joints to be processed even in spatially difficult-to-access areas.

In a further possible embodiment, it is provided that the first part has a third end face on which at least one first connecting means is arranged for establishing the detachable connection with the second part. The at least one first connecting means is preferably formed in one piece with the first part or the corresponding part body. The first curved edge section preferably forms a corner of the first part opposite the third end face, so that the first curved edge section forms an outer and easily accessible end of the tool even when connected to the second part, with which joints to be machined can be easily reached.

In a further possible embodiment, it is provided that the edge of the first part has a third curved edge section, which is preferably formed on a first projection that borders on the third end face. Because the third curved edge section is formed on a protruding projection, joints to be processed between components that are inclined towards one another can be reached better. The first projection can preferably taper towards the third curved edge section and in particular continues continuously into the second and/or third end face.

The additional "nose" formed in this way represents, in addition to the first curved edge section, another working edge of the first part with which joints can be removed. The third curved edge section is preferably more curved than the first and/or second curved edge section, so that the range of joint surfaces that can be produced with the tool according to the invention is expanded. This additional nose in the area of the third end face enables, for example, the production of smaller joints.

In a further possible embodiment, the edge of the first part has a stripping edge running perpendicular to the plane of the plate, which is preferably formed on a second projection that borders the third end face. Because the stripping edge is formed on a protruding projection, the areas to be processed between components that are inclined towards one another can be reached better. The second projection can preferably taper towards the stripping edge and in particular continues continuously into the first and/or third end face. The additional stripping edge can be used to clean the area around the joint of joint compound or to redraw the joint edges, for example if there is still smeared joint material on a glass pane or tile after the joint has been processed. The comparatively sharp contour of this stripping edge (which can also be seen as a rounded corner with a very small radius of curvature) also allows special joints of small width to be produced, e.g. between a glass pane and a frame.

In a further possible embodiment, it is provided that both the described peeling edge and the third curved edge section are formed on the first part and, viewed along the circumferential direction of the edge, the third curved edge section is formed between the third and the second end face and the peeling edge is formed between the third and the first end face. Alternatively, the third curved edge section can be formed between the third and the first end face and the peeling edge between the third and the second end face. The peeling edge and the third curved edge section are thus located at the corners between the third end face and the first and second end faces of the first part or form these corners.

The peeling edge or the third curved edge section and the third end face form in particular sections of the edge surrounding the first part and run perpendicular to the plate plane of the first part. The third end face can have a varying width or a width that differs from the first and second end faces perpendicular to the plate plane.

The additional stripping edge or the third curved edge section in the area of the third end face is available in particular because the tool is designed in several parts and therefore the first part, when released, has additional corners that can be used for joint processing.

In a further possible embodiment, it is provided that the edge of the second part has a fourth end face and a fifth end face, which merge into one another via the second curved edge section. The transition between the second curved edge section and the adjacent end faces is in particular continuous, i.e. without abrupt edges. The fourth and fifth end faces and the second curved edge section form sections of the edge surrounding the second part, extend perpendicular to the plate plane of the second part and preferably have a constant width perpendicular to the plate plane.

The fourth end face and/or the fifth end face preferably has a straight or flat profile in the peripheral direction of the edge. Alternatively, the fourth or fifth end face can have a convexly curved profile, in which case the curvature can differ from that of the second end face of the first part in order to enable different joint surfaces.

In a further possible embodiment, the fourth and fifth end faces form an acute angle (0° < α ≤ 90°) with one another. The fourth and fifth end faces converge and end in the second curved edge section, ie the shape of the second part tapering towards the second curved edge section, enables the processing of joints even in spatially difficult to access areas.

In a further possible embodiment, it is provided that the second part has a sixth end face on which at least one second connecting means is arranged for producing the detachable connection to the first part. The at least one second connecting means can in particular be connected or brought into engagement with the at least one first connecting means of the first part and is preferably formed in one piece with the second part. The sixth end face preferably forms a side of the second part opposite the fourth end face.

The second part can essentially have the shape of a shoe, with the second curved edge section forming the "shoe tip" and preferably the fourth end face forming the "shoe sole". To stay with this analogy, the sixth end face can form the upper side in the area of the "entrance opening" of the shoe, which preferably merges into the second curved edge section via the fifth end face.

In a further possible embodiment, it is provided that the first part and/or the second part has a seventh end face in the form of a surface of an edge region that is bevelled on one side and tapers at an acute angle to a cutting edge that runs parallel to the plane of the plate. In other words, the seventh end face preferably forms a cutting edge in that it runs bevelled on one side from an upper side of the second part to its underside, with the width decreasing from the upper side perpendicular to the plane of the plate to the underside at an acute angle. The scraper blade or edge formed in this way can be used to clean the area around the joint of joint material or joint filler over a larger area. Can be used to redraw the joint edges, for example if there is still smeared joint material on a pane of glass or tile after the joint has been processed. The cutting edge can be linear or convex or concave.

Preferably, the seventh end face is arranged on the second part, wherein in particular the second curved edge section forms a rounded corner of the second part opposite the seventh end face. Referring to the shoe analogy used above, the seventh end face preferably forms the "shoe rear part", which runs between the "entrance opening" (sixth end face) and the "shoe sole" (fourth end face).

It is advantageous if the seventh end face or the cutting edge forms a right angle with the fourth end face and merges into it via a sharp edge or corner. This enables the cutting edge to be introduced or the second part to be placed on surfaces and corner areas that are arranged at right angles to one another.

The edge of the plate-shaped body preferably runs perpendicular to the plate plane everywhere except for the seventh end face or the cutting edge.

Preferably, the first and second parts are designed such that the cutting edge and in particular the corner between the cutting edge and the fourth end face can also be used and is accessible in an assembled state of the tool. As a result, the cutting edge can be used with the large, assembled tool or with the individual second part, as required.

In a further possible embodiment, the connecting means are designed in such a way that they can be pushed into one another perpendicular to the plane of the plate in order to establish the connection between the first and second parts. Preferably, the first connecting means form protruding from the third end face. projections and the second connecting means have recesses formed complementarily thereto or vice versa. In order to ensure a stable connection, preferably at least two projections and correspondingly at least two recesses are provided.

Ideally, the connecting means secure the parts in a form-fitting manner in every direction parallel to the plane of the plate when connected. In other words, the connecting means are preferably designed in such a way that the parts cannot be moved towards each other along the plane of the plate when connected and the parts cannot be separated from each other in this direction. In contrast, the connecting means preferably enable a relative movement of the parts perpendicular to the plane of the plate, preferably only from one side.

In a further possible embodiment, the connecting means at least partially have a conical shape, which is designed in such a way that the connecting means can only be pushed into one another until a connection position is reached in which the plate planes of the first and second parts lie in a common plane. The connection position here refers to a relative position of the parts to one another in which they are connected to one another and can be used as a common tool. A conical shape of the connecting means is understood here to mean that at least part of the connecting means tapers perpendicular to the plate plane.

Due to the conical shape of the connecting means, the tool parts can only be connected to one another from one side. As soon as the connecting means are completely pushed into one another and the parts have thus reached their connecting position, continued movement of the parts relative to one another is blocked. This prevents the connecting means from slipping. Since the body of the tool is preferably made of an elastic plastic such as a thermoplastic or an elastomer, the conical shape of the connecting means also causes the parts to jam when These are pressed against each other into the connecting position so that a stable connection is created and the parts cannot accidentally fall apart.

In a further possible embodiment, it is provided that the first and second parts each have two opposite, concavely shaped side surfaces, each of which is at least partially surrounded by a circumferential seam. The seam is limited on the outside by the edge of the respective part. On the inside (i.e. towards the middle of the respective side surface), the seam preferably merges continuously into the concave area, i.e. in particular without an abrupt step or 90° edge.

The concave areas can be used as handles or gripping surfaces, thereby improving ergonomics when holding and guiding the tool or individual parts. In addition, the concave areas absorb removed joint material so that it does not fall off the tool when working on the joints and contaminate the area around the joint.

The circumferential seam preferably has a flat profile and, if appropriate, a constant width at least in sections and at least partially surrounds the respective concave area. In the area of the optionally provided additional projections of the first part, i.e. the third curved edge section and/or the peel-off edge, the seam can be made wider.

The surrounding seam serves to stiffen the body or the respective parts at their edges, so that stable edge areas are created that do not break or break away after only a little use. In addition, the surrounding seam encloses any joint material that has accumulated or accumulated in the concave area, so that this can be removed from the body after use or at regular intervals. Because the seam continues continuously into the concave area and there is no sharp edge or step, no joint material can settle there and dry out, which would be difficult to remove.

The concave regions of the first and second parts are preferably designed in such a way that they merge into one another continuously when connected, i.e. without abrupt edges. The third and sixth end faces of the first and second parts can therefore have a smaller width perpendicular to the plane of the plate than the other end faces, since they run within the concave regions of the respective side surfaces and ensure that a single, continuous concave region is formed on each side surface when the parts are joined together.

Optionally, it can be provided that the first part and/or the second part has an inner cavity, which can be filled with air, for example. This makes it possible to design the tool according to the invention in such a way that it floats in water and does not sink. This effect can also be achieved as an alternative or in addition to a cavity filled with a gas or a liquid by the first part and/or the second part, which is made from a first material (e.g. a first thermoplastic or a first elastomer), having an inner region made from at least one second material (e.g. a second thermoplastic or a second elastomer) and at least partially enclosing it. It is conceivable, for example, to use a two-component injection molding. The various materials can be selected in such a way that the first and/or second part has a stable, elastic structure that enables good joint processing, while at the same time the second material ensures that the tool floats.

Preferably, the lateral edges of the first and second end faces and the first curved edge region of the first part and/or the lateral edges of the fourth and fifth end faces and the second curved edge region of the second part run parallel to one another (in the case of the fourth end face, apart from the optionally provided region in which it tapers to the cutting edge described above).

Figur 1:

das erfindungsgemäße Werkzeug gemäß einem bevorzugten Ausführungsbeispiel im zusammengesetzten Zustand in einer Draufsicht auf eine der Seitenflächen;

Figur 2:

einen Querschnitt durch das Werkzeug gemäß Figur 1;

Figur 3:

den ersten Teil des Werkzeugs gemäß Figur 1 in einer Einzelansicht; und

Figur 4:

den zweiten Teil des Werkzeugs gemäß Figur 1 in einer Einzelansicht.

Further features, details and advantages of the invention emerge from the embodiment explained below with reference to the figures. They show:

Figure 1:

the tool according to the invention according to a preferred embodiment in the assembled state in a plan view of one of the side surfaces;

Figure 2:

a cross section through the tool according to Figure 1 ;

Figure 3:

the first part of the tool according to Figure 1 in a single view; and

Figure 4:

the second part of the tool according to Figure 1 in a single view.

In the Figure 1 a first embodiment of the tool 10 according to the invention is shown in the connected state in a plan view of one of the side surfaces. The tool 10 comprises a substantially plate-shaped body, which can be made of an elastic plastic such as a thermoplastic or an elastomer. The edge of the body comprises various curved areas 31, 32 and end faces 11, 12, 24, 25, which are described in detail below. The body is essentially in the shape of a boomerang and comprises two legs with rounded ends 31, 32, which are used to remove joint compound or to produce joints with a curved surface. In addition, the body has a cutting edge 28 for cleaning the area around the joint of joint material or for redrawing the joint edges.

The body comprises a first end face 11 with a flat or straight profile and a second end face 12 with an arched, or more precisely convexly curved profile. The second end face 12 can have a constant curvature over its entire profile, although a varying curvature is conceivable. The second end face 12 merges continuously into the first end face 11 via a first curved edge section 31, the first curved edge section 31 being more curved than the second end face 12 and forming a rounded corner of the tool 10. The first and second end faces 11, 12 run towards one another parallel to the plate plane, so that the leg formed by the first and second end faces 11, 12 tapers towards the first curved edge section 31. It can be provided that the first end face 11 encloses an acute angle with each tangent adjacent to the second end face 2 (outside the first curved edge section 31).

At its end opposite the first curved edge section 31, the second end face 12 ends in a projection with a third curved edge section 33, which is not visible when the tool is assembled and is described below. At its end opposite the first curved edge section 31, the first end face 11 merges via a short, convexly curved section into a fifth end face 25 with a flat profile. A fourth end face 24 of the body also has a flat profile and merges continuously into the fifth end face 25 via a second curved edge section 32. The fourth end face 24 preferably forms an acute angle with the fifth end face 25.

The second curved edge section 32 is preferably more curved than the first curved edge section 31 (and thus in particular also than the second end face 12). In particular, the first and second curved edge sections 31, 32 each have a constant curvature, with the second curved edge section 32 having a smaller radius of curvature than the first curved edge section 31. With these rounded corners of the tool 10, different joint shapes or curvatures can be achieved, which expands the area of application of the tool 10.

The first, second, fourth and fifth end faces 11, 12, 24, 25 as well as the first and second curved edge sections 31, 32 run perpendicular to the plate plane, along which the body extends, and have (except for the end section of the fourth end face 24 bordering the cutting edge 28) preferably a constant width perpendicular to the plate plane, which in particular defines the maximum width of the tool 10. The said end faces 11, 12, 24, 25 and curved edge sections 31, 32 are each delimited perpendicular to the plate plane by two parallel lateral edges 6 (cf. Figure 2 ), the distance between which defines the width of the respective edge section.

In addition, the body comprises a seventh front side 27, which, however, is not perpendicular to the plane of the plate, but runs diagonally to it. Starting from a top side of the body (which in the Figure 1 can be seen), the seventh side surface 27 runs obliquely downwards and ends in the cutting edge 28. The latter is formed by the body tapering towards the cutting edge 28, i.e. the thickness of the body decreases towards the cutting edge 28, preferably at an acute angle.

Like in the Figure 1 As can be seen, the cutting edge 28 in the embodiment discussed here does not have a linear but a slightly convex curved profile. The cutting edge 28 is separated from the second end face 12 by the aforementioned projection with the third curved edge section 33. The second end face 12 and the cutting edge 28 are preferably shaped in such a way that an outer contour with a uniform, continuous curvature is obtained overall, which extends over both areas 12, 28. The outer contour mentioned can have a constant curvature overall, but this is not mandatory. An embodiment is also conceivable in which the cutting edge protrudes beyond the second end face 12 or is set back.

The cutting edge 28 preferably forms a right angle with the adjacent fourth side surface 24 at the transition point, ie the body preferably has a right-angled corner at this point.

The body has two sides, one of which is in the Figure 1 shown in plan view. The side surfaces each have a concavely shaped area 50, which is surrounded by a flat seam 52 towards the outside, towards the lateral edges 6 of the end faces 11, 12, 24, 25 and curved edge sections 31, 32. The seam 52 surrounds the respective concave area 50 in the assembled state of the tool (cf. Figure 1 ) complete.

According to the invention, the body is not made in one piece, but in several parts. The embodiment shown in the figures shows a tool 10 with a two-part body, which comprises a first part 1 and a second part 2. The two parts or parts 1, 2 each comprise connecting means 41, 42, by means of which they can be detachably connected to one another. The Figure 1 shows the tool 10 in the assembled state, ie the first and second parts 1, 2 are connected to each other via their connecting means 41, 42.

In principle, more than two parts 1, 2 could be provided, each of which can be connected to one another via appropriate connecting means.

In the Figure 2 is a cross section through the assembled tool 10 along the Figure 1 shown dashed line A, which runs through two interconnected connecting means 41, 42. The outer lines, which form a rectangle, represent the lateral edges 6 of the end faces 11, 12, 24, 25 with a constant width, while the two inner, concavely curved lines indicate the thickness of the body along the cutting line A. This shows the shape of the concave areas 50 of the side surfaces, which merge into the surrounding seam 52 without sharp steps or edges.

The two parts 1, 2 of the tool 10 are individually in the Figures 3 and 4 each shown in a plan view of their side surfaces. The first part 1 has a substantially triangular (and, like the entire body, substantially plate-shaped) shape and comprises the previously described first and second end faces 11, 12 as well as the first curved edge section 31. The likewise The essentially plate-shaped second part 2, on the other hand, has essentially the shape of a shoe and comprises the aforementioned fourth, fifth and seventh end faces 24, 25, 27 (ie also the cutting edge 28) as well as the second curved edge section 32.

The first part 1 has a third end face 13, on which, in the embodiment shown here, two first connecting means 41 are formed in the form of T-shaped recesses that extend into the partial body of the first part 1. The second part 2 also has a further, sixth end face 26, on which second connecting means 42 are formed in the form of T-shaped projections that complement the recesses 41 and protrude from the partial body of the second part 2 in the plate plane. The first and second connecting means 41, 42 are therefore preferably formed in one piece with the first and second parts 1, 2 and in particular also consist of an elastic plastic.

The projections 42 are conical in shape and taper perpendicular to the plate plane in the direction of the Figure 4 . The recesses 41 are also conical in shape (in the Figure 3 not indicated). As a result, the projections 42 can only be pushed into the recesses 41 from one side perpendicular to the plate plane until a connecting position is reached in which the projections 42 lie completely within the complementarily shaped recesses 42. In the connecting position (cf. Figure 1 ), the plate planes (these are defined in particular by the planes running centrally, i.e. at half the thickness through the respective partial bodies) lie in a common plane. In addition, the side surfaces of the first and second parts 1, 2 adjoin one another continuously in the connecting position, i.e. without a jump. The concave regions 50 of the side surfaces are in particular shaped such that the concave edges of the concave regions 50, which form the lateral edges of the third and sixth end faces 13, 26, adjoin one another in the connecting position, so that a continuous concave region 50 is formed on each side surface of the assembled tool (cf. Figure 1 ).

This design of the connecting means 41, 42 means that the two parts 1, 2 can only be pushed into one another from one side and only in a defined relative orientation. This not only creates a connection that is easy and only correct to make, but also prevents the two parts 1, 2 from slipping through one another or being pushed too far into one another when connected. Once the connection position has been reached, the parts 1, 2 can no longer be pushed into one another. In addition, the preferably elastic design of the connecting means 41, 42 ensures that after the parts 1, 2 are pressed together, they remain firmly connected to one another and do not accidentally separate from one another again.

The connecting means 41, 42 fix the parts 1, 2 in a form-fitting manner relative to one another in every direction parallel to the plane of the plate when connected. Due to the conical shape, the parts 1, 2 in the connected state are also fixed in a form-fitting manner perpendicular to the plane of the plate in the insertion direction, while movement in the opposite direction (to release the connection) is possible and in this direction in particular only a force-fitting connection exists.

Instead of the wing-shaped or T-shaped connecting means 41, 42 shown here, any other shapes are conceivable which allow the connecting means to be pushed into one another and thus to produce a detachable connection between the first and second parts 1, 2. Furthermore, only one connecting means or more than two connecting means can be provided per part 1, 2.

The division of the tool 10 creates additional working edges and end faces, which significantly expand the range of applications of the tool 10 according to the invention. Thus, in the embodiment shown here, the first part 1 has an additional first projection or nose with a third curved edge section 33 in the transition area between the second end face 12 and the third end face 13 caused by the division. This is preferably more curved than the first and second curved edge sections 31, 32 and therefore enables the production or processing of even smaller joints. The third The curved edge portion 33 lies between the second and third end faces 12, 13 and in particular merges continuously into them.

At the other end of the third end face 13, an additional second projection in the form of a fin is also provided, which tapers parallel to the plate plane to a preferably linear stripping edge 34 that runs perpendicular to the plate plane, in particular at an acute angle. The second additional projection is formed in that the division of the body into the first and second parts 1, 2 ends obliquely in the first end face 11 or in the concavely curved edge section between the first and fifth end faces 11, 25. This additional stripping edge 34 enables the area around the joint to be cleaned with pinpoint accuracy to remove smeared joint material and enables the finest joints to be produced precisely between components that are angled to one another.

In principle, it would be conceivable to provide the first and/or second additional projection not on the first part 1, but on the second part 2. Furthermore, both parts 1, 2 could optionally have additional projections or working edges at the corners of the respective third and sixth end faces 13, 26.

List of reference symbols:

1

First part

2

Second part

6

Side edge

10

Tool

11

First front side

12

Second front side

13

Third front side

24

Fourth front side

25

Fifth front side

26

Sixth front side

27

Seventh front side

28

Cutting edge

31

First curved edge section

32

Second curved edge section

33

Third curved edge section

34

Peeling edge

41

First connecting means

42

Second connecting means

50

Concave area

52

hem

Claims (15)

Tool (10) for reworking and smoothing joints filled with a joint compound, wherein the tool (10) comprises a substantially plate-shaped body which has an edge running in particular perpendicular to the plane of the plate with differently curved sections, characterized in that
that the body is constructed in several parts and comprises a first part (1) with a first curved edge section (31) and a second part (2) with a second curved edge section (32), wherein the parts (1, 2) have connecting means (41, 42) for producing a detachable connection to one another. Tool (10) according to claim 1, wherein the first and second curved edge portions (31, 32) are curved to different degrees. Tool (10) according to claim 1 or 2, wherein the edge of the first part (1) comprises a first end face (11) and a second end face (12), which in particular continuously merge into one another via the first curved edge portion (31), wherein the first end face (11) has a straight profile and/or the second end face (12) has a convexly curved profile. Tool (10) according to claim 3, wherein the first part (1) has a substantially triangular shape, wherein the first and second end faces (11, 12) preferably enclose an acute angle with one another. Tool (10) according to one of the preceding claims, wherein the first part (1) has a third end face (13) on which at least one first connecting means (41) is arranged, wherein the first curved edge portion (31) preferably forms a corner of the first part (1) opposite the third end face (13). Tool (10) according to claim 5, wherein the edge of the first part (1) has a third curved edge portion (33), which is preferably formed on a first projection which borders on the third end face (13) and is in particular more strongly curved than the first and/or second curved region (31, 32). Tool (10) according to claim 5 or 6, wherein the edge of the first part (1) has a stripping edge (34) running perpendicular to the plate plane, which is preferably formed on a second projection which borders on the third end face (13). Tool (10) according to claims 3, 6 and 7, wherein, viewed in the circumferential direction of the edge, the third curved edge portion (33) is formed between the third and the second end face (12, 13) and the peeling edge (34) is formed between the third and the first end face (11, 13) or the third curved edge portion (33) is formed between the third and the first end face (11, 13) and the peeling edge is formed between the third and the second end face (12, 13). Tool (10) according to one of the preceding claims, wherein the edge of the second part (2) has a fourth end face (24) and a fifth end face (25) which extend beyond the second curved edge portion (32) in particular continuously merge into one another, wherein the fourth end face (24) and/or the fifth end face (25) has a straight course. Tool (10) according to claim 9, wherein the fourth and fifth end faces (24, 25) enclose an acute angle with each other. Tool (10) according to one of the preceding claims, wherein the second part (2) has a sixth end face (26) on which at least one second connecting means (42) is arranged and which preferably forms a side of the second part (2) opposite the fourth end face (24). Tool (10) according to one of the preceding claims, wherein the first part (1) and/or the second part (2) has a seventh end face (27) in the form of a surface of an edge region which is bevelled on one side and tapers at an acute angle to a cutting edge (28), wherein the cutting edge (28) runs parallel to the plate plane, wherein the seventh end face (27) is preferably arranged on the second part (2) and in particular the second curved edge section (32) forms a corner of the second part (2) opposite the seventh end face (27). Tool (10) according to one of the preceding claims, wherein the connecting means (41, 42) are designed such that they can be pushed into one another perpendicular to the plate plane in order to establish the connection of the first and second parts (1, 2) and preferably fix the parts (1, 2) in a form-fitting manner within the plate plane in the connected state. Tool (10) according to claim 13, wherein the connecting means (41, 42) at least partially have a conical shape which is designed such that sliding the connecting means (41, 42) into one another is only possible until a connection position is reached in which the plate planes of the first and second parts (1, 2) lie in a common plane. Tool (10) according to one of the preceding claims, wherein the first and second parts (1, 2) each comprise two opposite, concavely shaped Have side surfaces which are at least partially surrounded by a circumferential seam (52) which is delimited on the outside by the edge of the respective part (1, 2) and inwards in particular continuously merges into a concave region (50), wherein the concave regions (50) of the first and second parts (1, 2) preferably continuously merge into one another in the connected state.

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