Tool device

Abstract

The invention relates to a tool device, in particular a saw blade (3), which can be driven in an oscillating manner in particular about an axis of rotation (1) of a hand-held power tool, having a cutting element (5) and a further cutting element (6), wherein the cutting elements (5, 6) are spaced at different distances from the tool axis. It is proposed that the cutting element (5) and / or the further cutting element (6) has a cutting parameter, in particular an almost identical cutting parameter, which is adapted to the axis of rotation (1), in particular in the circumferential direction (8).

Description

[0001] R. 417197

[0002] - 1 -

[0003] title

[0004] Tool fixture

[0005] The invention relates to a tool device according to the preamble of claim 1.

[0006] A large number of tool devices are known from the prior art.

[0007] The invention is based on the objective of improving a tooling device using simple design measures.

[0008] The problem is solved with a tool device, in particular a saw blade, which can be driven in an oscillating manner about an axis of rotation of a hand-held machine tool, with one cutting element and another cutting element, wherein the cutting elements are spaced apart from the axis of rotation at different distances.

[0009] It is proposed that the cutting element and / or the further cutting element have a cutting parameter, in particular one that is nearly identical. The apparent parameter can be adapted to the axis of rotation, especially in the circumferential direction.

[0010] The cutting element can be designed for machining a workpiece. The cutting element can have a single cutting direction. The cutting element can have a cutting geometry. The cutting element can have a cutting corner, in particular a cutting tip. The cutting element can be designed as a cutting tooth. The cutting tooth can have a cutting edge. The cutting element can have a clearance face. The cutting element can have a rake face facing away from the clearance face. The clearance face and the rake face can be R. 417197

[0011] - 2 - be tapered and, in particular, form a cutting edge, preferably with an acute angle, preferably with an angle less than 90°. It is understood that angles greater than 90° can also be used. The cutting element can be wedge-shaped. The clearance face and the rake face can terminate in the cutting edge. The cutting element can be heat-treated. The cutting element can be coated. The cutting element can extend transversely to a circumferential direction around the axis of rotation.

[0012] The tooling device can have a plurality of cutting elements. The cutting elements can be arranged in a series. The cutting elements can be uniformly spaced from one another. The cutting elements can have a cutting pitch or spacing, particularly a uniform one. The cutting elements can be made of a material that differs from the rest of the tooling device's material. The cutting elements can be arranged relative to adjacent cutting elements around the circumferential direction and / or transversely, particularly perpendicularly, to the circumferential direction.

[0013] The cutting elements can form a cutting edge when viewed along the circumference. This cutting edge can be designed to come into direct contact with a workpiece and cut it. It is formed by a series of cutting elements, particularly cutting teeth, arranged along a transverse and / or tangential side of the tooling device. The cutting elements can have various shapes, arrangements, and sizes, and can be adapted to the specific application of the tooling device. The cutting edge can form a single cutting edge front. The cutting edge can extend continuously along the circumference. The cutting edge can extend discretely along the circumference. The cutting edge can be formed by multiple cutting tooth edges and / or cutting tooth tips.The cutting edge can be formed as a kind of trend line in polynomial form along the cutting elements, in particular the cutting tooth edges or the cutting tooth tips of the cutting elements. The cutting edge can be formed from a multitude of, in particular successive, cutting edge segments. R. 417197.

[0014] - 3 -

[0015] Cutting edge sections can be adjacent to one another. The cutting edge sections can be angled, offset, and / or spaced apart from each other. The cutting edge sections can be straight, curved, parallel, and / or angled to the circumferential direction.

[0016] The hand-held power tool can be handheld and / or hand-guided. It can be in the form of an oscillating multi-functional machine, designed in particular for a variety of applications such as cutting, grinding, scraping, and polishing. The hand-held power tool comprises a housing containing a drive unit, in particular an electric motor, which is controlled or regulated by an electronic control unit. The drive unit can be connected to an oscillating gear unit that generates an oscillating motion at a frequency typically in the range of 10,000 to 20,000 oscillations per minute. The housing can be fitted with a quick-release clamping device (tool holder), in particular a tool-free one, which allows for the quick and easy changing of various tool attachments, such as saw blades, grinding plates, or scraper blades.These attachments can be connected to the drive unit via an interface that ensures a secure and stable connection. The handheld power tool can include variable speed control, allowing the user to precisely adjust the oscillation speed to the specific application. A dust extraction system ensures a clean working environment by extracting dust and dirt particles directly at the source. The handheld power tool can have a tool holder for mounting a tool fixture. The tool holder can include a clamping and / or clamping unit for securing the tool fixture to the handheld power tool. The tool holder can be mounted to move around the axis of rotation and, in an operating state, perform a cutting motion along a circumferential direction around the axis of rotation.The axis of rotation of the hand-held power tool and the axis of rotation of the tool fixture can essentially coincide. R. 417197.

[0017] - 4 -

[0018] The holding unit can be designed to hold the tool fixture on a hand-held power tool. The holding unit can extend along a longitudinal axis or radially to the axis of rotation. The holding unit can have a holding geometry. This geometry can consist of a holding contour, a holding surface, and / or a holding recess. The holding unit can be arranged at one end of the tool fixture and define its boundaries. In a receiving and / or operating state, the holding unit can be designed to be fully integrated into or attached to the hand-held power tool, particularly the tool holder. The holding unit can be free of cutting elements. The holding unit can be made of a material different from that used for the cutting elements. The holding unit can be adapted to the tool holder.

[0019] The term "cutting parameters" refers to a set of specific variables and settings that influence the cutting process of a tool, particularly a saw blade. These parameters can include the cutting geometry, cutting speed, feed rate, cutting depth, cutting angle, and the type of material being cut. Cutting parameters are crucial for optimizing cutting performance, as they determine the efficiency, precision, and quality of the cut. By adjusting the cutting parameters, different materials and cutting conditions can be accommodated to achieve optimal cutting performance while minimizing wear on the cutting tool.

[0020] The cutting parameter can be adapted to the axis of rotation, particularly in the circumferential direction. This allows the cutting parameter, which in particular constitutes a specific property or value and thus characterizes the cutting performance or efficiency of the hand-held power tool, to be configured so that it can be adapted to the axis of rotation along its circumferential direction. A plurality of cutting elements, especially those directly adjacent to one another, can be adapted such that cutting conditions, and in particular the cutting angles of the cutting elements, are independent of any formed cutting edge of the R. 417197.

[0021] - 5 -

[0022] The tooling is essentially adapted to the axis of rotation. In particular, adjacent cutting elements, preferably directly adjacent to each other, can have coordinated cutting parameters. This allows for optimization of cutting performance depending on the specific application or the user's requirements. By adjusting the cutting parameter in the circumferential direction, for example, the cutting speed, cutting depth, or cutting angle can be optimized to achieve improved cutting quality and efficiency.

[0023] This contributes to improved handling and greater accuracy when performing cutting operations that require a rotating or oscillating motion. The ability to adjust the cutting parameter circumferentially around the axis of rotation thus represents a significant improvement in the functionality and versatility of the handheld power tool, enabling customized adaptation to different materials and cutting conditions.

[0024] It may be advantageous for the cutting parameter to define a cutting geometry, particularly along one direction of rotation. The cutting parameter may also define a cutting geometry, particularly along another direction of rotation. It may further be advantageous for the cutting parameter to define a cutting geometry, particularly along an opposite direction of rotation. The cutting parameter may preferably be configured to generate a defined cutting geometry in and / or against the direction of rotation of the tool device. This cutting geometry may encompass various aspects, such as the shape, angle, and arrangement of the cutting elements that act in a specific direction of rotation or in both directions.By specifically designing the cutting geometry, especially in both directions of rotation, the cutting performance can be optimized by distributing the cutting forces evenly, improving the cutting quality and making material removal more efficient.

[0025] It may be advantageous for the cutting geometry to be adapted to the overall cutting geometry. This means that the specific design of the cutting geometry, which follows a direction of rotation of the cutting blade or R. 417197

[0026] - 6 - of the cutting tool is configured to optimally harmonize and interact with the other cutting geometry acting along the opposite direction of rotation. This adaptation can encompass various aspects, such as the shape, angle, arrangement, and dimensioning of the cutting edges, to ensure that cutting performance is maximized in both directions of rotation. By precisely matching the cutting geometries, a uniform distribution of cutting forces is achieved, resulting in improved cut quality and more efficient material removal. This adaptation also helps to minimize vibrations and reduce wear on the cutting tools, thereby extending the machine's service life.The ability to configure the cutting geometry to optimally match the overall cutting geometry represents a significant improvement in the functionality and versatility of the handheld power tool. This allows for customized adaptation to different materials and cutting conditions, and considerably increases the machine's overall performance by ensuring precise and clean cuts in both directions of rotation.

[0027] It can be advantageous for the cutting element and / or the additional cutting element to have a rake angle and a further rake angle, where, in particular, the rake angles are nearly identical with respect to an axial plane spanned along a rotational axis. This means that the cutting edges of the cutting element and the further cutting element are designed such that their rake angles, which define the angle between the cutting edge and the surface of the material being machined, are nearly identical when viewed with respect to an axial plane spanned by the machine's rotational axis. This configuration ensures that the cutting forces are distributed evenly, resulting in improved cutting performance and higher cut quality.The nearly identical rake angles contribute to more efficient material removal and minimize stress on the cutting edges, thus reducing wear and extending the service life of the cutting tools. This feature therefore represents a significant improvement in functionality and R. 417197.

[0028] - 7 -

[0029] The efficiency of the hand-held power tool is demonstrated by ensuring precise and consistent cutting performance.

[0030] It can be advantageous for the cutting element and / or the additional cutting element to have a median that is coplanar to an axial plane defined by the axis of rotation. This means that the geometric center or the median of the cutting element and / or the additional cutting element lies in a plane defined by the machine's axis of rotation. This arrangement ensures that the cutting forces are distributed symmetrically and evenly across the cutting element, resulting in more stable and precise cutting guidance. The coplanarity of the medians with the axial plane helps to minimize vibrations and distribute the load evenly across the cutting edges, reducing wear and extending the service life of the cutting tools.This feature therefore represents a significant improvement in the functionality and efficiency of the hand-held power tool by ensuring precise and consistent cutting performance.

[0031] It can be advantageous for the cutting element and / or the additional cutting element to be symmetrical, particularly mirror-symmetrical. The cutting element and / or the additional cutting element can essentially have a symmetrical shape. Symmetry can be considered particularly with respect to an axial plane defined by the axis of rotation of the tool or hand-held power tool. This mirror-symmetrical design ensures that the cutting forces are distributed evenly on both sides of the cutting element, resulting in more stable and precise cutting guidance. An axial plane to an axis of rotation can be an imaginary or real plane that runs parallel to the axis of rotation and intersects it along its entire length. This plane can extend along the direction of the axis of rotation and divide the space into two symmetrical halves.The axial plane can serve as a reference plane to define angles, symmetries, and other relevant parameters with respect to the axis of rotation. R. 417197.

[0032] - 8 -

[0033] It can be advantageous for the cutting element and the subsequent cutting element to form a straight cutting edge. This allows the cutting edge of the cutting elements to run in a straight line, without curves or bends, thus enabling a straight cutting edge and a precise and uniform cut, as a constant cutting force is ensured along the entire length of the cutting edge.

[0034] It may be advantageous for the cutting element and / or the additional cutting element to form a curved cutting front. A curved cutting front can be particularly beneficial for applications requiring curved or contoured cuts, such as cutting pipes, profiles, or complex shapes.

[0035] It can be advantageous for the cutting front to have a radius that is larger than the radius of the axis of rotation relative to the cutting element, in particular by at least a factor of 1.1, preferably 1.25, more preferably 1.5, further preferably 2, more preferably 5, and / or in particular by a factor of at most 100, more preferably 50, more preferably 25, more preferably 15, more preferably 10. This means that the curvature of the cutting front has a larger radius than the distance of the axis of rotation to the cutting element, resulting in a flatter curvature of the cutting edge. This configuration allows for a more uniform distribution of the cutting forces and improved control over the cutting process, especially with larger workpieces or materials that require a smoother cut.The greater curvature helps to minimize the stress on the cutting edges and reduce wear on the cutting tools, thus extending the service life of the machine.

[0036] It may be advantageous for the cutting front to have a radius that is smaller than the radius of the axis of rotation relative to the cutting element, in particular by at least a factor of 1.1, preferably 1.25, more preferably 1.5, further preferably 2, more preferably 5, and / or in particular by at most a factor of 100, more preferably 50, more preferably 25, more preferably 15, more preferably 10. This means that the curvature of the cutting front has a smaller radius than the distance of the axis of rotation to the R. 417197

[0037] - 9 -

[0038] The cutting element features a steeper curvature of the cutting edge. This configuration enables more precise and aggressive cutting, especially with smaller workpieces or materials requiring a sharper cut. The reduced curvature helps to concentrate cutting forces more efficiently and improve cut quality by producing clean and precise edges. This feature significantly enhances the functionality and versatility of the handheld power tool by ensuring precise and consistent cutting performance across a wide range of applications.

[0039] It can be advantageous for the cutting element and / or the subsequent cutting element to be designed in the shape of a triangle, particularly an isosceles triangle. This means that the cross-sectional shape of the cutting element has a triangular geometry, with the sides of the triangle being of equal length if it is an isosceles triangle. This triangular shape enables efficient distribution of cutting force and stable cutting guidance, as the vertices of the triangle act as sharp cutting edges that precisely cut through the material. The isosceles geometry helps to distribute the load on the cutting edges evenly and minimize vibrations, which reduces wear on the cutting tools and extends the service life of the machine.This feature therefore represents a significant improvement in the functionality and efficiency of the hand-held power tool by ensuring precise and consistent cutting performance.

[0040] It may be advantageous for the cutting element and / or the further cutting element to have a rake face and a further rake face, in particular one facing away from the rake face, wherein the rake faces are of different sizes and / or lengths, and wherein the rake faces form a tooth tip, the tooth tip being located on a side facing away from the axis of rotation and pointing away from the axis of rotation. This means that the cutting element is designed to have two different rake faces that form a sharp tooth tip. The different size and length of the rake faces enable optimized chip evacuation and efficient cutting force distribution. The arrangement of R. 417197

[0041] - 10 -

[0042] The tooth tip on the side facing away from the axis of rotation ensures that the cutting forces are effectively transferred to the material, resulting in improved cutting quality and precise cutting guidance. This feature thus represents a significant improvement in the functionality and efficiency of the hand-held power tool by ensuring precise and consistent cutting performance.

[0043] It may be advantageous for the cutting element and / or the subsequent cutting element to contain or consist of a carbide. Is the saw blade body made of HCS? The cutting element may be partially or completely made of a carbide. The cutting element may have a cutting tip made of a carbide. The cutting element may consist of at least 10%, in particular 20%, preferably 30%, more preferably 40%, more preferably 50%, further preferably 60%, and / or at most 90%, in particular 80%, more preferably 70%, more preferably 80%, of a carbide. This can increase the service life of the cutting elements, thereby ensuring long-lasting and reliable cutting performance.

[0044] It can be advantageous for the tooling device to have a working unit, in particular comprising the cutting elements, for machining a workpiece and a holding unit for holding the tooling device on the hand-held power tool, wherein the working unit and the holding unit are made of different materials. The tooling device can have a connecting unit that joins the working unit and the holding unit. The connecting unit can be arranged between the working unit (on one side) and the holding unit (on the other). The connecting unit can be overlapping and connected to the holding unit, in particular by welding, preferably spot welding. The connecting unit can be connected to the working unit, in particular via a straight connecting edge, in particular by welding. The connecting unit can be flat or planar.The working unit can be arranged in line with the connecting unit. The holding unit can be designed as a conventional quick-release holding unit, such as a Starlock holding unit. The connecting unit and the working unit R. 417197.

[0045] - 11 - can be arranged coplanarly opposite each other. This allows for a particularly advantageous separation of functions.

[0046] It can be advantageous for the tooling fixture to have a third cutting element, with the cutting elements being spaced differently relative to the axis of rotation. The third cutting element can be arranged in combination with at least two other cutting elements. These cutting elements can be designed such that they are spaced differently along the axis of rotation, which serves as the central reference line. This means that each cutting element has a specific, different distance from the axis of rotation. This arrangement enables differentiated machining of the workpiece by positioning the cutting elements at different radial distances from the axis. This allows for different cutting profiles or machining depths, which increases the versatility and precision of the tooling fixture.

[0047] It can be advantageous for the tooling device to have a plurality of cutting elements, arranged one another in the circumferential direction around the axis of rotation, wherein at least 20%, in particular 30%, preferably 40%, preferably 50%, particularly preferably 60%, and / or at most 95%, in particular 90%, preferably 85%, preferably 80%, more preferably 75%, particularly preferably 70%, of all cutting elements have a cutting parameter that is, in particular, nearly identical, preferably identical, and which is adapted to the axis of rotation, particularly in the circumferential direction. These cutting parameters are defined in such a way that they are adapted to the axis of rotation of the tooling device, in particular in the circumferential direction. This means that the cutting elements that have these identical cutting parameters offer similar cutting conditions, which leads to consistent and uniform machining of the workpiece.The identical cutting parameters can encompass various aspects, such as the cutting angles, cutting speed, or cutting depth, all of which are tailored to the specific requirements of the machining task. R. 417197.

[0048] - 12 -

[0049] The invention further relates to a system comprising a tool device, in particular designed as an oscillating saw blade, according to one of the preceding claims and a hand-held power tool, in particular designed as a multi-function machine.

[0050] Brief description of the drawings

[0051] Further advantages arise from the following description of the drawings. The drawings may depict further developments of the invention. The drawings, the description, and the claims contain numerous features in combination. The person skilled in the art will expediently consider the features individually and combine them into meaningful further combinations. This shows:

[0052] Fig. 1 a perspective view of the invention

[0053] Tool fixture,

[0054] Fig. 2 shows a top view of another embodiment of the

[0055] Tool fixture and

[0056] Fig. 3 shows a detailed view of part of the tooling fixture.

[0057] Fig. 1.

[0058] In the following figures, identical components are labelled with the same reference symbols.

[0059] Fig. 1 shows a tool device 4, designed as a saw blade 3 and capable of oscillating about a rotary axis 1 of a hand-held power tool 2, with a cutting element 5 and a further cutting element 6, which are spaced differently from the rotary axis 1 and have an identical cutting parameter 7, which is adapted to the rotary axis 1 in the circumferential direction 8.

[0060] The cutting element 5 is designed for machining a workpiece 9. It has a single cutting direction 10, a cutting geometry 11, and a cutting edge, in particular a cutting tip 13. The cutting element 5 is designed as a cutting tooth 14, which has a cutting edge 15. R. 417197

[0061] - 13 -

[0062] It has a clearance surface 16 and a rake surface 17 facing away from the clearance surface 16 in a circumferential direction along a direction of rotation. Accordingly, the rake surfaces and the clearance surfaces are to be considered in reverse (mirrored) when the direction of rotation is opposite. The rake surfaces 17 and the clearance surfaces 16 of each adjacent cutting element 5, 6 are of different sizes and / or different lengths measured from a tooth tip 13. The clearance surface 16 and the rake surface 17 are tapered and, in particular, form a cutting edge 18 with an acute angle 19, preferably less than 90°. It is understood that angles greater than 90° are also used. The cutting element 5 is wedge-shaped, and the clearance surface 16 and the rake surface 17 terminate in the cutting edge 18. The cutting element 5 is tempered and coated and extends transversely to a circumferential direction 8 around the axis of rotation 1.

[0063] The tool device 4 has a plurality of cutting elements 5 arranged in a row and uniformly spaced apart from one another. The cutting elements 5 have a, in particular uniform, cutting pitch 21 or cutting element spacing and are made of a material 23 which differs from the rest of the material 24 of the tool device 4. The cutting elements 5 are arranged relative to adjacent cutting elements 6 around the circumferential direction 8 and / or transversely, in particular perpendicularly, to the circumferential direction 8.

[0064] The cutting elements 5 form a cutting edge 25 along the circumferential direction 8, which is intended to come into direct contact with and cut a workpiece 9. This cutting edge 25 is formed from a series of cutting elements 5, in particular cutting teeth 14, which are arranged along a transverse side 26 and / or tangential side 27 of the tool device 4. The cutting elements 5 have various shapes, arrangements, and sizes and are adapted to the respective application of the tool device 4. The cutting edge 25 forms a cutting edge front 28 and extends continuously or discretely along the circumferential direction 8. It is formed from several cutting tooth edges 18 and / or cutting tooth tips 13 and is defined as a kind of trend line 29 in polynomial form along the cutting elements 5, in particular the R. 417197

[0065] - 14 -

[0066] The cutting edge 25 is formed by the cutting tooth edges 18 and the cutting tooth tips 13 of the cutting elements 5. The cutting edge 25 is formed from a plurality of, in particular successive, cutting edge sections (not shown in detail) that connect to one another. The cutting edge sections 30 are each curved with respect to the axis of rotation 1.

[0067] The holding unit 31 is designed to hold the tool fixture 4 on a hand-held power tool 2. It extends along a longitudinal axis or radially to the axis of rotation 1 and has a holding geometry 33, which consists of a holding contour 34, a holding surface 35, and / or a holding recess 36. The holding unit 31 is arranged at one end of the tool fixture 4 and defines its boundaries. In a receiving and / or operating state, it is designed to be received in or on the hand-held power tool 2 by the tool holding unit. The holding unit 31 is free of cutting elements and is made of a material 38 different from the cutting elements 5. It is adapted to the tool holding unit.

[0068] The cutting parameter is adapted to the axis of rotation 1, particularly in the circumferential direction 8. This means that the cutting parameter 7, which in particular constitutes a specific property or value and thus characterizes the cutting performance or efficiency of the hand-held power tool, is configured to be adapted to the axis of rotation 1 along the circumferential direction 8. A plurality of cutting elements 5, in particular those directly adjacent to one another, are adapted such that the cutting conditions and, in particular, the cutting angles of the cutting elements 5 are essentially adapted to the axis of rotation 1, independent of any cutting edge 25 formed by the tool device 4. Cutting elements 5 that are particularly adjacent to one another, preferably directly adjacent, have mutually coordinated cutting parameters.

[0069] The cutting parameter forms a cutting geometry 11, in particular along a direction of rotation 39. The cutting parameter 7 forms a cutting geometry 11, in particular along a further direction of rotation 40. The cutting parameter 7 forms a further cutting geometry 11 along an opposite direction of rotation. 417197

[0070] - 15 -

[0071] Direction of rotation 41. The cutting parameter 7 is preferably designed such that it generates a defined cutting geometry 11 in and / or against the direction of rotation 39 of the tool device 4. This cutting geometry 11 comprises the shape, angle, and arrangement of the cutting elements 5 that act in a specific direction of rotation or both directions of rotation.

[0072] The cutting element 5 has a rake angle 43 and the further cutting element 6 has a further rake angle 44, wherein the rake angles 43, 44 are each nearly identical with respect to an axial plane 45 spanned along a rotary axis 1 and, in the present example according to Fig. 3, are 30°. This means that the cutting edges of the cutting element 5 and the further cutting element 6 are designed such that their rake angles, which define the angle between the cutting edge and the surface of the material to be machined, are nearly identical when viewed with respect to an axial plane 45 spanned by the rotary axis 1 of the machine.

[0073] The cutting element 5 and the further cutting element 6 each have a median 46 which is coplanar to an axial plane 45 defined by the axis of rotation 1. This means that the geometric center or the median of the cutting element 5 and the further cutting element 6 each lies in a plane angled relative to each other, defined by the axis of rotation 1 of the machine.

[0074] The cutting element and / or the additional cutting element is symmetrical, in particular mirror-symmetrical. The cutting element and / or the additional cutting element has an essentially symmetrical shape. Symmetry is considered in particular with respect to an axial plane defined by the axis of rotation 1 of the tool device 4 or the hand-held power tool 2. An axial plane to an axis of rotation 1 forms an imaginary or real plane that runs parallel to the axis of rotation 1 and intersects it along its entire length. This plane extends along the direction of the axis of rotation 1 and divides space into two symmetrical halves. The axial plane 45 serves as a reference plane for defining angles, symmetries, and other relevant parameters with respect to the axis of rotation 1. R. 417197

[0075] - 16 -

[0076] The cutting element 5 and the further cutting element 6 form a curved cutting edge 25. The radius of the cutting edge 25 does not correspond to the distance of the cutting edge 25 to the axis of rotation 1.

[0077] The cutting edge 47 has a larger radius 49 than the distance of the axis of rotation 1 to the cutting element 5, in particular by a factor of at least 1.1 and at most a factor of 100. The cutting front has a smaller radius 50 than the distance of the axis of rotation 1 to the cutting element 5, in particular by a factor of at least 1.1 and at most a factor of 100.

[0078] The cutting element 5 and the other cutting element 6 are each formed in the shape of an isosceles triangle in a single cut. All cutting elements 5 are made of a hard metal 53.

[0079] It is advantageous for the tooling device 4 to have a working unit 54 for machining a workpiece 9 and a holding unit 55 for holding the tooling device 4 on the hand-held power tool 2, wherein the working unit 54 and the holding unit 55 are made of different materials. The tooling device 4 has a connecting unit 56 which connects the working unit 54 and the holding unit 55. The connecting unit 56 is arranged between the working unit 54 and the holding unit 55 and is overlapping with the holding unit 55, in particular by welding. The connecting unit 56 is flat. The working unit 54 is arranged in extension of the connecting unit 56. The holding unit 55 is designed as a quick-release holding unit 57, such as a Starlock holding unit.The connecting unit 56 and the working unit 54 are arranged coplanarly.

[0080] The tool device 4 has a third cutting element 58, wherein the cutting elements 5, 6, 58 are spaced differently relative to the axis of rotation 1. The third cutting element 58 is arranged in combination with at least two further cutting elements 5, 6 and is designed such that they are spaced differently along the axis of rotation 1. At least 20% and at most 95% of all cutting elements 5, 6, 58 exhibit R. 417197

[0081] - 17 - a nearly identical cutting parameter, which is adapted to the axis of rotation 1.

[0082] The cutting edge 25 has a larger radius 49 than the distance of the axis of rotation 1 to the cutting element 5, in particular by a factor of at least 1.1 and at most a factor of 100. The cutting front has a smaller radius 50 than the distance of the axis of rotation 1 to the cutting element 5, in particular by a factor of at least 1.1 and at most a factor of 100.

[0083] The cutting element 5 and the further cutting element 6 are formed in a cut in the form of an isosceles triangle 60.

[0084] All cutting elements 5 are made of a hard metal 62.

[0085] It is advantageous for the tooling device 4 to have a working unit 54 for machining a workpiece 9 and a holding unit 55 for holding the tooling device 4 on the hand-held power tool 2, wherein the working unit 54 and the holding unit 55 are made of different materials. The tooling device 4 has a connecting unit 65, which connects the working unit 54 and the holding unit 55. The connecting unit 56 is arranged between the working unit 54 and the holding unit 55 and is welded to the holding unit 54 with an overlap. The connecting unit 56 is flat and welded to the working unit 54. The working unit 54 is arranged in line with the connecting unit 65. The holding unit 55 is designed as a quick-release holding unit 66, such as a Starlock holding unit. The connecting unit 56 and the working unit 54 are arranged coplanarly.

[0086] The tool device 4 has a third cutting element 58, wherein the cutting elements 5, 6, 58 are spaced differently relative to the axis of rotation 1. The third cutting element 58 is arranged in combination with at least two further cutting elements 5, 6 and is designed such that they are spaced differently along the axis of rotation 1. At least 20% and at most 95% of all cutting elements 5, 6, 58 exhibit R. 417197

[0087] - 18 - a nearly identical cutting parameter 7, which is adapted to the axis of rotation 1.

Claims

R. 417197 - 19 - Claims 1. In particular, a tool device, in particular a saw blade (3), which can be driven in an oscillating manner about a rotary axis (1) of a hand-held power tool (2), with a cutting element (5) and a further cutting element (6), wherein the cutting elements (5, 6) are spaced apart differently from the tool axis (59), characterized in that the cutting element (5) and / or the further cutting element (6) has a cutting parameter (7), in particular an almost identical one, which is adapted to the rotary axis (1), in particular in the circumferential direction (8).

2. Tool device according to claim 1, characterized in that the cutting parameter (7) forms a cutting geometry (11), in particular along a direction of rotation (39), wherein the cutting parameter (7) forms a further cutting geometry (42), in particular along an opposite direction of rotation (41), wherein the cutting geometry (11) is adapted to the further cutting geometry (42).

3. Tool device according to one of the preceding claims, characterized in that the cutting element (5) and / or the further cutting element (6) have a rake angle (43) and a further rake angle (44), wherein in particular the rake angles (43, 44) are almost identical to an axial plane (45) spanned along an axis of rotation (1) and / or that the cutting element (5) and / or the further cutting element (6) has a median (46) which is coplanar to an axial plane (45) spanned by the axis of rotation (1), wherein the cutting element (5) and / or the further cutting element (6) is symmetrical, in particular mirror-symmetrical, and / or that the cutting element (5) and / or the further cutting element (6) is formed in a section in the form of a triangle (51), in particular an isosceles triangle.

4. Tool device according to one of the preceding claims, characterized in that the cutting element (5) and / or the further cutting element R. 417197 - 20 - (6) form a cutting front which is straight and / or the cutting element (5) and / or the further cutting element (6) form a cutting front which is curved.

5. Tool device according to one of the preceding claims, characterized in that the cutting front has a radius (49) which is larger than a radius of the axis of rotation (1) to the cutting element (5), in particular by at least a factor of 1.1, preferably 1.25, more preferably 1.5, further preferably 2, particularly preferably 5, and / or in particular by at most a factor of 100, preferably 50, more preferably 25, more preferably 15, more preferably 10, and / or that the cutting front has a radius (50) which is smaller than a radius of the axis of rotation (1) to the cutting element (5), in particular by at least a factor of 1.1, more preferably 1.25, more preferably 1.5, more preferably 2, more preferably 5, and / or in particular by at most a factor of 100, more preferably 50, more preferably 25, more preferably 15, more preferably 10.

6. Tool device according to one of the preceding claims, characterized in that the cutting element (5) and / or the further cutting element (6) has a rake surface (17) and a further rake surface (52), in particular facing away from the rake surface (17), wherein the rake surfaces (17, 52) are of different sizes and / or different lengths, wherein the rake surfaces (17, 52) form a tooth tip (13), wherein the tooth tip (13) is arranged on a side facing away from the axis of rotation (1), and wherein the tooth tip (13) points away from the axis of rotation (1).

7. Tool device according to one of the preceding claims, characterized in that the cutting element (5) and / or the further cutting element (6) contains or consists of a hard metal (53).

8. Tool device according to one of the preceding claims, characterized by a working unit (54) for machining a workpiece (9), in particular having the cutting elements (5), and a holding unit (55) for holding the tool device on a hand-held power tool (2), wherein the working unit (54) and the holding unit (55) are made of different materials. R. 417197 - 21 - 9. Tool device according to one of the preceding claims, characterized by a third cutting element (58), wherein the cutting elements (5, 6, 58) are spaced apart differently from the tool axis (59).

10. Tool device according to one of the preceding claims, characterized by a plurality of cutting elements (5), in particular arranged in the circumferential direction (8) around the axis of rotation (1), wherein at least 20%, in particular 30%, preferably 40%, preferably 50%, particularly preferably 60%, and / or at most 95%, in particular 90%, preferably 85%, preferably 80%, further preferably 75%, particularly preferably 70%, of all cutting elements (5) have a cutting parameter that is in particular almost identical, preferably identical, which is adapted to the axis of rotation (1), in particular in the circumferential direction (8).

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