Tool device for a hand-held power tool

Abstract

The invention relates to a tool device (11) for receiving in a hand-held power tool (211), which hand-held power tool can operate the tool device in a rotatable manner about an output shaft of a tool receiving device (213), which tool device is used, in particular, for machining a workpiece, which tool device has at least one attachment device (13), which can be connected in a releasable manner to the output shaft of the hand-held power tool (211), wherein the attachment device (13) can be fastened on the tool receiving device (213) in such a way that an output axis (A) of the output shaft and a tool rotation axis (a) of the tool device (11) essentially coincide, wherein the attachment device (13) has a slot (17). It is proposed that the attachment device (13) has at least one clamping wing (19), which at least partially delimits the slot (17) in a radial direction of the tool rotation axis (a), which clamping wing is essentially delimited by a first boundary edge (21) in a radial direction with respect to the tool rotation axis (a), which first boundary edge lies on a first, in particular smallest, boundary circle (23) about the tool rotation axis (a), wherein the clamping wing (19) extends at least essentially along an orthogonal plane with respect to the tool rotation axis (a).

Description

Technical Field

[0001] The present invention relates to a tool receiving device in a handheld machine tool that allows the tool device to rotate rotatably about the output shaft of a tool receiving device, particularly for machining workpieces, having at least one attachment device that is detachably connectable to the output shaft of the handheld machine tool, wherein the attachment device can be fastened to the tool receiving device such that the output axis of the output shaft and the tool rotation axis of the tool device substantially coincide, wherein the attachment device has a slot. Background Technology

[0002] DE 29605728 Ul discloses a cutting blade including a saw blade having a central fastening opening for form-locking fastening to an output shaft that is oscillating about its longitudinal axis, wherein the cutting blade is circularly constructed. Summary of the Invention

[0003] The objective of this invention is to improve tool devices for machine tools, especially handheld machine tools, with simple structural measures.

[0004] This task is solved by a tool device for receiving a handheld machine tool that allows the tool device to rotate about the output shaft of a tool receiving device, particularly for machining workpieces. The tool device has at least one attachment device that is detachably connected to the output shaft of the handheld machine tool. The attachment device is fastened to the tool receiving device such that the output axis of the output shaft and the rotation axis of the tool device are substantially coincident. The attachment device has a slot.

[0005] According to the invention, the attachment device has at least one clamping wing that at least partially delimits the slot in the radial direction of the tool rotation axis, the clamping wing being delimited substantially in the radial direction of the tool rotation axis by a first boundary edge located on a first, particularly smallest, boundary circle about the tool rotation axis, wherein the clamping wing extends at least substantially along a plane orthogonal to the tool rotation axis.

[0006] The present invention will be described below primarily using a tool apparatus as an example, particularly for use with hand-guided machine tools, especially handheld machine tools, which have a tool receiving device that rotates about an output axis. However, the limitations of the accompanying drawings should not be construed as limiting the applicability of this tool apparatus.

[0007] The machine tool, especially a handheld machine tool, is a device having one or more drive motors and, if necessary, one or more transmission devices, and at least one output (driven) shaft having an output axis—to be understood in a geometrical sense. A tool receiving device is arranged indirectly or directly on the output shaft. The tool receiving device is one or more components that apply torque to the tool, especially the tool device, by means of which the tool receiving device preferably—especially in the case of a hand-guided machine tool, especially a handheld machine tool—also holds the tool in place, such that the tool, especially the tool device, is both held in place and loaded to output torque solely by means of the tool receiving device. The terms output torque and output-based terms refer to the torque transmitted from the machine tool, especially a handheld machine tool, or a corresponding component of the machine tool, especially a handheld machine tool, to the tool, especially the tool device; the term driving torque refers to the torque received by the tool, especially the tool device.

[0008] Hand-guided machine tools, especially handheld machine tools, have a carrying device, particularly a handle and the like, through which the machine tool, especially handheld machine tool, and the tool, especially the tool assembly, fastened thereto can be guided by operating force. Typically, hand-guided machine tools, especially handheld machine tools, are equipped with an electric drive motor, but other construction methods are also known, such as machine tools, especially handheld machine tools, that are powered by an internal combustion engine, hydraulically or pneumatically operated, and can be applied within the framework of this invention.

[0009] The aforementioned machine tool, especially a handheld machine tool, enables the tool assembly, particularly for high-speed rotating applications, to be received or clamped without tools. This eliminates the need for additional, especially removable, safety elements, such as fastening screws, to secure the tool assembly to the tool receiving device. The machine tool, especially the handheld machine tool, is designed to connect or clamp the tool assembly to the tool receiving device in a particularly quick and convenient manner, allowing the operator to change tools exceptionally quickly. This also eliminates the need for additional tools, such as wrenches or screwdrivers, to connect the tool assembly to the machine tool.

[0010] The tool device according to the invention is particularly advantageous because at least one clamping wing is configured such that the tool device can be driven by a hand-held machine tool in a vibration-minimized manner, such that the at least one radially extending clamping wing not only advantageously transmits torque from the output shaft of the tool receiving device to the tool device, but also particularly enables vibration-minimized operation of the tool device in the clamped state of the tool receiving device. This allows for better reception of vibrations generated during tool device operation, which could be amplified by increasing preload in the clamped state.

[0011] The attachment device is configured for detachable connection with conventional commercially available machine tools, especially handheld machine tools, ensuring backward compatibility. This backward compatibility is achieved in particular by having the first boundary edge of the clamping wing located on a first boundary circle, which corresponds to the minimum diameter of conventional commercially available machine tools, enabling alignment of the machine tool on a conventional tool receiving device.

[0012] "Can be loosely separated" should be understood, especially in the context, as "can be separated without damage".

[0013] The first boundary edge can at least partially define the slot of the boundary tool device. In particular, the at least one clamping wing can at least partially define the slot of the boundary tool device.

[0014] The tool assembly can extend substantially in a plane orthogonal to the tool's axis of rotation. The slot can be particularly provided to at least partially, and especially completely, enclose the tool receiving device of the handheld machine tool.

[0015] "Encircle" should be understood in the context, in particular, as surrounding the output shaft of the machine tool, especially a handheld machine tool, in at least one plane, such as the orthogonal plane of the tool's rotation axis or output axis, 360° around the tool receiving device, preferably around the clamping and carrying device of the tool receiving device.

[0016] "Setup" should be understood in particular as specifically programmed, designed and / or equipped. An object for defining a function should be understood in particular as that which satisfies and / or implements the defined function in at least one application and / or operational state.

[0017] "Orthogonal plane" should be understood in the context as a plane that unfolds from at least two directions orthogonal to the axis of rotation of the tool. Here, slight deviations, such as an angular deviation of up to 5%, especially up to 4%, preferably up to 3%, more preferably up to 2%, and particularly preferably up to 1% of the direction from which the orthogonal plane unfolds, should be within the scope of the technical knowledge and ability of a person skilled in the art.

[0018] The terms “output axis” and “tool rotation axis” here refer to the imaginary geometric rotation axis of the output shaft of a machine tool, especially a handheld machine tool, and the imaginary geometric rotation axis of the tool assembly, respectively.

[0019] Preferably, the clamping wing can have a radial shape-locking element, which is particularly configured to form a shape-locking connection for circumferentially driving the tool device along the tool rotation axis of the tool device. The clamping wing can be implemented here as a radial bulge or a radial tongue.

[0020] The groove, especially the groove profile, can have n layers, especially 2 layers, preferably 4 layers, preferably 6 layers, and is rotationally symmetric, where n is a natural number from two to infinity.

[0021] "Rotational symmetry" should be understood in the context as the symmetry of the notch profile of the tool assembly, particularly when the tool assembly rotates 360° relative to a fixed body about its center point or axis of rotation, and the notch profiles are imaged or coincident with each other n times. Here, n should be a natural number in the range from two to infinity.

[0022] The dependent claims provide extensions of the tool apparatus according to the invention that meet the objectives.

[0023] Ideally, the clamping wing should be constructed as a spring-loaded wing (elastic wing). The clamping wing can be configured to connect the tool assembly to the tool receiving device in such a way that the tool assembly receives the load in the axial direction along the tool's rotation axis, at least partially through elastic deformation or elastic bending. Preferably, the maximum reference parameter D corresponding to the spring stiffness of the clamping wing is 400,000 N / mm or less. Preferably, the maximum reference parameter D corresponding to the spring stiffness of the clamping wing has a value in the range of 10,000 N / mm to 350,000 N / mm. The maximum reference parameter D corresponding to the spring stiffness is preferably derived from the following relationship:

[0024] F = Dz, where...

[0025] Wherein, L represents the maximum average extension dimension of the clamping wing between the first and second boundary circles, b represents the maximum tangential extension dimension of the clamping wing along the second boundary circle, and h represents the maximum material thickness of the clamping wing in the axial direction along the tool rotation axis a. The maximum material thickness h can preferably correspond to a value in the range of 0.5 mm to 1.6 mm. Thus, the tool receiving device can reliably secure the clamping wing by clamping it at least partially along the axial direction of the tool rotation axis, such that the clamping wing is configured to be elastically bent in the axial direction.

[0026] What would be desirable is that the clamping wings, when unfolded about the radial and axial directions of the tool's rotation axis, are asymmetrical in every plane, and especially not mirror-symmetrical.

[0027] "Each plane of symmetry" should be understood in the context as each of the following planes of symmetry, which is obtained by each radial direction constituting the radial axis in the circumferential region about the axis of rotation of the tool, up to 30°, especially up to 60°, preferably up to 90°, preferably up to 120°, more preferably up to 180°, and particularly preferably up to 360°.

[0028] This effectively avoids the multi-sided connectivity of the tool device and the tool receiving device, ensuring that the tool device is connected to the tool receiving device only via a receiving side configured for receiving. This allows for immediate error disclosure and / or error avoidance according to the Poka Yoke principle, whereby the operator receives feedback when the tool device is connected to the tool receiving device via a side not configured for receiving.

[0029] The tool device is particularly advantageous because the configuration of the at least one clamping wing allows it to be driven by a handheld machine tool in a vibration-minimized manner. The asymmetrical implementation of the at least one clamping wing not only advantageously transmits torque from the output shaft of the tool receiving device to the tool device, but also enables particularly vibration-minimized operation of the tool device in the clamped state with the tool receiving device in control. Consequently, vibrations generated during tool device operation are better reduced and enhanced with increasing preload in the clamped state.

[0030] Furthermore, the rotation direction of the tool device about the tool rotation axis can be determined by the asymmetrical implementation of the at least one clamping wing, thereby ensuring that the tool device is specially configured to process workpieces or workpiece assemblies only in a single rotation direction.

[0031] Furthermore, it is desirable that the cross-section of the clamping wing—obtained through an orthogonal plane of the tool's rotation axis—is substantially trapezoidal, and more particularly substantially rectangular. Preferably, the cross-section may be tapered or truncated conical.

[0032] The objective is that the first boundary circle has at least one imaginary projected edge between two adjacent first boundary edges, the projected edge being located on the first boundary circle and extending concentrically with the first boundary circle in a circumferential direction about the tool rotation axis.

[0033] The at least one, especially each, projection edge may have a circumferential extension scale that is smaller than the extension scale of the first boundary edge adjacent to the projection edge, by a degree that is particularly up to 50%, preferably up to 40%, further preferably up to 30%, most preferably up to 20%, particularly preferably up to 10%, and even more preferably up to 5%.

[0034] The first boundary edge can define the maximum extension dimension of the clamping wing along the circumferential direction of the first boundary edge. The first boundary edge can be configured to enable the tool device and the tool receiving device to be aligned, especially coarsely aligned or pre-aligned, in the connected state of the tool device and the tool receiving device.

[0035] The at least one, especially each, of the projected edges has a maximum circumferential extension dimension smaller than the maximum radial extension dimension of the tool receiving device—especially a clamping device in the case of a tool-less tool receiving device or especially a bolt in the case of a conventional tool receiving device—so that the tool device surrounding the tool receiving device in the radial direction can be pre-centered.

[0036] Preferably, the total circumferential extension of all first boundary edges located on the first boundary circle is larger than the total circumferential extension of all projected edges located on the first boundary circle, particularly larger than 100%, particularly larger than 80%, preferably larger than 60%, preferably larger than 40%, especially preferably larger than 20%, and even more preferably larger than 10%. Preferably, one, particularly each, projected edge is smaller than the first boundary edge adjacent to that projected edge.

[0037] In its simplest form, the attachment device can be constructed as a slot, allowing the carrying device and the clamping device to be engaged into or through the slot. Preferably, at least the carrying device and / or the clamping device of the tool receiving device, when arranged on the tool receiving device, at least partially engage with the slot of the attachment device of the tool device. The carrying device is preferably positioned to at least partially abut against the edge region of the slot of the attachment device of the tool device, particularly when the tool device is arranged on the tool receiving device.

[0038] Alternatively, the attachment device can be configured using a bearing flange, particularly a disc or bent flange. This allows for a particularly stable implementation of the attachment device, where the bearing flange comprises or is constructed of a metallic material, such as steel. Consequently, the bearing flange can be advantageously and robustly connected to and reliably held in place by the tool receiving device of a machine tool, especially a handheld machine tool. Furthermore, the bearing flange allows for less material usage, as it can be implemented thinly while still meeting the requirements of the tooling device.

[0039] The bent support flange is configured for receiving the tool via a clamping device, thereby ensuring particularly quick and convenient receiving of the tool. Preferably, the bent support flange can be configured for particularly effective connection with conventional machine tools, especially handheld machine tools, by means of a locking nut. The locking nut can be placed within the clearance volume of the bent support flange, whereby the support flange at least partially surrounds the locking nut 360° in at least one plane.

[0040] Furthermore, it is also possible that the clamping wings are essentially defined radially relative to the tool's axis of rotation by a second boundary edge located on the second, and particularly largest, boundary circle about the tool's axis of rotation. This second boundary edge can define the slot of the attachment device. This allows for particularly advantageous centering of the tool assembly by removing the load from the clamping wings radially. The increased radial spacing of the second boundary edge relative to the first boundary edge supports a higher overturning moment, enabling the tool assembly to be held particularly reliably by the tool receiving device. Additionally, it is possible that the tool assembly has a working area connected to and completely surrounded by a support flange, which is configured to act on the workpiece or workpiece assembly. This allows for functional separation in a particularly simple manner, whereby the support flange establishes a stable connection to the machine tool's tool receiving device, and the working area, for example, has the required yieldability or even rigidity adapted to the workpiece or workpiece assembly to be processed, without weakening the connection between the tool assembly and the tool receiving device. Preferably, the load-bearing flange is connected to the working area by means of material locking, shape locking and / or force locking, and is constructed integrally with the working area.

[0041] Furthermore, to achieve the desired effect, the working area is arranged on the support flange such that, in the tightened state, the working area protrudes relative to the support flange along the axial direction of the tool's rotation axis in the direction oriented towards the tool receiving device of the hand-held machine tool, particularly up to 2 mm, preferably up to 1 mm, more preferably up to 0.7 mm, more preferably up to 0.6 mm, particularly preferably up to 0.3 mm, and even more preferably up to 0.1 mm. This allows the tool device to be additionally supported on the tool receiving device and increases the effective support radius of the tool device, thereby causing an additional force-locking connection between the tool device and the machine tool.

[0042] The tooling device, especially the working area, can be implemented as a grinding disc and / or a dividing disc and / or a coarse grinding disc, especially for grinding away material.

[0043] It can be either directly in the work area or, alternatively, firstly, a load-bearing flange arranged between the tool receiving device and the work area, which is then attached outward to the tool receiving device of the machine tool, especially a handheld machine tool.

[0044] The maximum diameter of the bearing flange can be about 20% to 80%, especially 30% to 70%, and preferably 35% to 60% of the maximum diameter of the tooling device.

[0045] The proposed tool assembly has at least one upper first bearing plane and at least one lower second bearing plane in the region of the bearing flange, wherein these bearing planes are arranged substantially perpendicular to the tool's rotation axis, wherein these bearing planes are spaced apart from each other by a distance T, and wherein these bearing planes define the axial extension dimension of the bearing flange. The first bearing plane may be spaced apart from the second bearing plane by a distance T, which is up to 25 mm, particularly up to 20 mm, preferably up to 15 mm, more preferably up to 10 mm, most preferably up to 8 mm, particularly preferably up to 5 mm, but may also be up to 3 mm, particularly up to 2 mm, preferably up to 1 mm. This allows for a particularly flat and stable implementation of the tool assembly.

[0046] The bearing flange may have substantially cylindrical sidewalls that extend axially along the tool's axis of rotation and, in particular, define the working area radially relative to the tool's axis of rotation. The sidewalls may, in particular, have a substantially circular cross-section.

[0047] Additionally, the tool receiving device of a machine tool, especially a handheld machine tool, can be protected from collision with the workpiece by, for example, a can-shaped bearing flange. Preferably, the sidewall can be substantially concentric with the first boundary circle and the second boundary circle. Preferably, the sidewall extends between an upper first bearing plane and a lower second bearing plane. The sidewall can be configured to receive at least a portion of the tool receiving device in an internal region of the sidewall.

[0048] In a preferred embodiment, the sidewall may be substantially radially closed around the tool's axis of rotation. In another embodiment, the sidewall may have a notch or interruption in its course around the tool's axis of rotation. In particular, a particularly stable attachment device can be achieved with a closed, surrounding sidewall; an attachment device with an interruption or notch can be achieved, in particular, with a particularly lightweight attachment device and a small moment of inertia.

[0049] The second bearing plane can be farther from the machine tool receiving the tool assembly, especially a handheld machine tool, than the first bearing plane, particularly when the tool assembly is arranged and / or fastened to the tool receiving device.

[0050] It is also proposed that the at least one clamping wing has a torque receiving region, particularly constituting a drive edge and / or drive surface, for receiving torque circumferentially about the tool's rotation axis, wherein the torque receiving region is at least partially obtained through axial and / or radial extensions of the clamping wing. The torque receiving region can contact the tool receiving device of the machine tool by means of point support, especially by means of line support, and preferably by means of surface support.

[0051] The torque receiving area can be arranged, in particular, between the lower second bearing plane and the upper first bearing plane. Preferably, the torque receiving areas are arranged relatively spaced apart from each other in the circumferential direction along the corresponding drive edges and / or drive surfaces extending about the tool rotation axis, wherein, in particular, the minimum circumferential spacing between the torque receiving areas, especially between the drive edges and / or drive surfaces of the torque receiving areas, is more than 10%, preferably more than 20%, and particularly preferably less than 60% of the total circumference of the first boundary circle.

[0052] The torque receiving area is set up to transmit the drive torque of the machine tool, especially the handheld machine tool, to the tooling device.

[0053] The torque receiving region, particularly the drive edge and / or drive surface, can be angled against the direction of rotation of the tool receiving device in the operation of the machine tool, especially a handheld machine tool, and preferably angled circumferentially about the tool rotation axis relative to a plane extending through the axial and radial directions of the tool rotation axis, particularly up to 50°, preferably up to 40°, preferably up to 30°, and particularly preferably up to 25°. Preferably, the drive surface and / or drive edge, particularly in a plane extending at least substantially perpendicular to the drive axis, forms an angle with a straight line intersecting the drive axis and the drive surface and / or drive edge at least at one point, particularly with the radial direction, an angle particularly less than 80°, preferably less than 60°, and particularly preferably less than 45°. Preferably, the drive surface is inclined relative to the circumferential direction extending about the tool rotation axis. In particular, the drive surface forms angles different from 90° with respect to the circumferential direction.

[0054] Preferably, the attachment device may have at least two clamping wings, each having a torque receiving area, particularly a driving edge and / or driving surface, the clamping wings being arranged parallel to each other and spaced apart, and in particular the two torque receiving areas being symmetrical about the tool's rotation axis.

[0055] Furthermore, the tooling device has a working area connected to a supporting flange, particularly in a material-locking and / or form-locking manner, for machining workpieces. This allows for a particularly advantageous separation of functions. The form-locking connection can be achieved, in particular, by multiple axially imprinted portions of the supporting flange, which are embedded in the working area and form-locked to the working area. The axially imprinted portions can be implemented as protrusions or sharp corners projecting in the axial direction. The axially imprinted portions can be configured for better heat dissipation.

[0056] It is possible that the bearing flange limits the slot in the radial direction relative to the tool's axis of rotation. It is also possible that the at least one clamping wing, particularly a clamping wing configured as a spring arm, limits the slot at least partially in the radial direction relative to the tool's axis of rotation. Furthermore, it is possible that the slot is configured as a material through-hole extending through the entire material thickness of the tool assembly, particularly the attachment device, wherein the material through-hole is arranged to completely surround the output shaft of the handheld machine tool, particularly the tool receiving device, preferably the carrying device and the clamping device. This provides a particularly stable attachment device for the tool assembly.

[0057] "Material locking connection" should be understood in particular as the joining of mass bodies by atomic or molecular forces, such as brazing, fusion welding, adhesive bonding and / or vulcanization.

[0058] The material thickness t of the attachment device is preferably selected from a defined range, wherein the material thickness is preferably greater than or equal to 0.2 mm, preferably greater than 0.5 mm, and particularly preferably greater than 0.8 mm; more preferably, the material thickness t is less than or equal to 4 mm, preferably less than 2 mm, and particularly preferably less than 1.5 mm. Particularly preferably, the material thickness t is substantially 1 mm or 1.5 mm, or preferably between 1 mm and 1.5 mm. In particular, selecting a suitable material thickness t from the aforementioned range enables, on the one hand, a lightweight tool device with a small moment of inertia, and on the other hand, a sufficiently stable tool device.

[0059] Furthermore, it is desirable that the ratio of the diameter D1 of the first boundary circle to the diameter D2 of the second boundary circle is in the range of 50% to 95%, particularly in the range of 60% to 90%, preferably in the range of 65% to 85%, and most preferably in the range of 70% to 80%. The first boundary circle can particularly have a diameter D1 of about 22 mm, for example, 22.2 mm. The second boundary circle preferably has a diameter D2 of about 29 mm. Preferably, the diameter D2 of the second boundary circle can have a ratio of 77% to the diameter D1 of the first boundary circle. This allows the tooling device to be received on a variety of conventional machine tools, especially handheld machine tools.

[0060] Further preferably, the first boundary circle may have a diameter D1 of about 16 mm, while the second boundary circle has a diameter D2 in the range of about 21 mm to 22.5 mm, so that the tool device can also be adapted to commercially available small machine tools, especially small handheld machine tools.

[0061] Particularly preferred is that the diameter D2 of the second boundary circle relative to the diameter D1 of the first boundary circle can have a ratio in the range of 71% to 77%.

[0062] It is proposed that the attachment device has an even number of clamping wings, particularly at least two, four, or six clamping wings. It is also proposed that the attachment device has multiple clamping wings arranged symmetrically about the tool's rotation axis. This allows for particularly effective vibration minimization of the tool device.

[0063] Furthermore, the supporting flange has a safety device constructed such that, in the event of a break in the connection between the supporting flange and the working area, the working area is held axially along the tool's rotation axis between the supporting flange and the handheld tool, particularly the handheld tool. This ensures that, in the event of an accidental detachment of the connection, the working area is held between the supporting flange, particularly the safety device of the supporting flange, and the tool receiving device of the handheld tool, effectively protecting the operator from the impact of flying debris from the working area, particularly fragments, of the shattered tool.

[0064] The safety device can be configured with a maximum radial extension of the bearing flange that exceeds the minimum radial extension of the working area, such that the bearing flange overlaps the working area radially and thus achieves a form-locking connection in the axial direction along the tool rotation axis in a tightened state.

[0065] The safety device can be implemented as a radial bearing lip or bearing ring that limits the bearing flange in the radial direction along the tool's rotation axis. The safety device is particularly constructed as the area of ​​the bearing flange that overlaps with the working area. The safety device has a connection area that locks the shape and / or material of the working area to the bearing flange. The connection area extends in the radially outer region of the bearing flange. The connection area is arranged radially adjacent to, and particularly engaging with, an attachment device, particularly a slot of the attachment device. The connection area is implemented as a particularly annular, preferably circular, connection surface that connects the working area to the bearing flange.

[0066] The bearing flange can be implemented as a bearing ring with an L-shaped configuration in cross-section, such that the connection between the preferred working area and the bearing flange is made only on the side of the tool assembly oriented toward the tool receiving device or on the side oriented away from the tool receiving device.

[0067] The load-bearing ring can also be U-shaped in cross-section. The load-bearing ring can be composed of an upper sub-ring and a lower sub-ring, which are preferably connected to each other and, in particular, pressed together.

[0068] Furthermore, it is proposed that the attachment device has at least one tool assembly coding element, which is configured to cooperate with at least one assembly coding element of the tool receiving device when the tool device is arranged on the tool receiving device. Preferably, the tool assembly coding element of the tool device is constructed as a mechanical tool assembly coding element, such as a notch, ridge, channel, connecting strip, embossing part, etc. However, it is also conceivable that the tool assembly coding element of the tool device is constructed as an electronic tool assembly coding element, such as an RFID chip, NFC chip, radio wave analysis processor, electronic reader (barcode reader, QR code reader, etc.), or the tool assembly coding element of the tool device is constructed as a combination of mechanical and electronic tool assembly coding elements. Preferably, the tool assembly coding element of the tool device is configured to cooperate with at least one assembly coding element of the carrying device or at least one assembly coding element of the clamping device according to the key / keyhole principle (Schlüssel-Schlüsselloch-Prinzip), especially when the tool device is arranged on the tool receiving device. Preferably, the tool device includes multiple tool assembly coding elements, especially at least two, preferably at least three, and particularly preferably at least four. The tool device preferably includes the same number of tool assembly coding elements as the tool receiving device. However, it is also conceivable that the number of tool assembly coding elements in the tool device differs from, and is particularly larger than, the number of tool assembly coding elements in the tool receiving device. The at least one tool assembly coding element of the tool device may preferably be configured as or used as a stress-relieving notch, in addition to its assembly coding function. Preferably, for assembling and / or securing the tool device to the tool receiving device, mechanical and / or electronic analysis and evaluation of the at least one tool assembly coding element of the tool device are provided, particularly by means of the at least one assembly coding element of the tool receiving device, so as to preferably release the assembly and / or securing of the tool device on the tool receiving device. It is conceivable that the movement of the clamping device until the assembly and / or securing is released is preventable, particularly mechanically and / or electronically. It is conceivable that the at least one tool assembly coding element of the tool device is configured for manipulating, particularly driving, the at least one assembly coding element of the tool receiving device, particularly to enable the release of the assembly and / or securing of the tool device on the tool receiving device. Alternatively or additionally, the tool assembly may have at least one additional tool assembly coding element, particularly an embossing portion, which is provided with at least one additional assembly coding element, particularly movably supported on a support surface, for operating, particularly driving, the tool receiving device, so as to enable the release of the tool assembly and / or fastening on the tool receiving device. With the configuration according to the invention, the misassembly of the tool assembly on the tool receiving device can be advantageously minimized. It can advantageously prevent the arrangement of tool assemblies unsuitable for the safe operation of the machine tool on the tool receiving device.This can advantageously, for example, prevent the arrangement of tooling devices designed for machine tools with low maximum speeds on machine tools with high maximum speeds. It can also advantageously achieve high operator safety.

[0069] It is also proposed that the at least one tool assembly coding element is arranged on the at least one clamping wing of the attachment device. When the tool assembly coding element arranged on the clamping wing is configured as a slot, the tool assembly coding element is preferably machined into the clamping wing in such a way that the resistance characteristic of the clamping wing to plastic deformation due to operating load is reduced, at most reduced to the load limit of the clamping wing. It is conceivable that at least one reinforcing element, such as a reinforcing rib, is arranged on the clamping wing. The at least one tool assembly coding element arranged on the clamping wing is preferably configured to cooperate with the at least one assembly coding element of the clamping device arranged on the pawl when the tool device is arranged on the tool receiving device. With the configuration according to the invention, reliable assembly coding or fastening coding based on the key / keyhole principle can be advantageously achieved.

[0070] It is also proposed that the at least one tool assembly coding element has a maximum extension dimension along the radial axis, which is at most equivalent to the maximum distance between the first and second boundary circles of the attachment device. Preferably, the at least one tool assembly coding element arranged on the clamping wing has a maximum extension dimension along a direction extending transversely to, and especially at least substantially perpendicular to, the tool rotation axis, particularly along the radial axis of the tool device, which is equal to or less than the maximum distance between the first and second boundary circles of the tool device. Reliable and secure coding can be advantageously achieved with the configuration according to the invention.

[0071] Furthermore, it is proposed that the at least one tool assembly coding element is arranged on the at least one clamping wing of the attachment device in an angular region between the drive edge and the coding edge of the attachment device. In particular, this angular region has a maximum extension of 90° or less, preferably 60° or less, and particularly preferably 40° or less. Reliable fastening coding can be advantageously achieved with the configuration according to the invention. It can advantageously minimize the risk of the tool assembly being fastened to an unsuitable machine tool. It can advantageously prevent operator injury due to the tool assembly being fastened to an unsuitable machine tool.

[0072] Furthermore, a tool device is proposed, comprising: at least one working area designed to act on a workpiece or workpiece assembly; at least one attachment device designed to receive driving force; and at least one connection area designed to transmit driving force to the working area. The tool device is intended for use in machine tool applications, particularly handheld machine tools.

[0073] In particular, a connecting area can be arranged between each working area of ​​the attachment device and the working area. Preferably, the at least one connecting area can, and more preferably all connecting areas can, be arranged substantially in the upper region of the lower second bearing plane and preferably substantially coincide with the first bearing plane.

[0074] This allows for particularly stable attachment devices and thus excellent torque delivery to the tooling.

[0075] Furthermore, an application of the tool device implemented with an angle grinder is proposed, wherein the tool device can operate at a speed of 4000 rpm or more, or 10000 rpm or more, or 20000 rpm or more.

[0076] "Operable" should be understood in the context as being safe to operate, such that the application of the tool device in a machine tool, especially an angle grinder, corresponds to the same or at least approximately the same operating time or service life as a tool device, such as a heated grinding disc (Fieberschleifscheibe) used in an angle grinder application. The operating time or service life should be understood in particular as the typical service life of an angle grinder-driven grinding device in the field of grinding tools.

[0077] Furthermore, a method for manufacturing a tool device is proposed, wherein the tool device has an attachment device having a slot, the slot being manufactured by a stamping method.

[0078] Furthermore, the present invention relates to a machine tool system having a tool device according to the invention and at least one handheld machine tool having at least one tool receiving device. It is proposed that the tool device has at least one tool assembly coding element configured to cooperate with at least one assembly coding element of the tool receiving device when the tool device is arranged on the tool receiving device. Preferably, the carrying device includes at least one assembly coding element configured to cooperate with the tool assembly coding element of the tool device when the tool device is arranged on the tool receiving device. Preferably, the at least one assembly coding element of the carrying device is configured to encode the arrangement or placement of the tool device on the tool receiving device, particularly at a support surface or thereon. Preferably, the at least one assembly coding element of the carrying device is configured to encode the arrangement or placement of the tool device on the tool receiving device, particularly at a support surface or thereon, according to a key-keyhole principle. Preferably, the at least one assembly coding element of the carrying device is constructed as an axial coding element, particularly an axial coding element operating along a direction extending at least substantially parallel to the output axis. Preferably, the at least one assembly coding element of the carrying device is configured to encode the axial placement possibilities of the tool device on the carrying device. Preferably, the at least one assembly coding element of the carrying device is integrally constructed with the carrying device, especially the carrying claw of the carrying device. However, it is also conceivable that the at least one assembly coding element of the carrying device may be constructed independently of the carrying device, especially the carrying claw, and fixed to the carrying device, especially the carrying claw, by means of connections deemed meaningful by a professional. Preferably, the assembly coding element is constructed as a mechanical assembly coding element, such as a slot, a ridge, a channel, a connecting strip, etc. However, it is also conceivable that the assembly coding element is constructed as an electronic assembly coding element, such as an RFID chip, an NFC chip, a radio wave analysis processor, an electronic reader (barcode reader, QR code reader, etc.), etc., or that the assembly coding element is constructed as a combination of mechanical assembly coding elements and electronic assembly coding elements. The tool assembly coding element of the tool device is preferably constructed correspondingly to the assembly coding element of the carrying device. When the assembly coding element is configured as a mechanical assembly coding element, the tool assembly coding element is also constructed as a mechanical tool assembly coding element, such as a slot, a ridge, a channel, a connecting strip, etc. When the assembly coding element is configured as an electronic assembly coding element, the tool assembly coding element is similarly configured as an electronic tool assembly coding element, such as an RFID chip, NFC chip, radio wave analysis processor, electronic reader (barcode reader, QR code reader, etc.), or the like. Similarly, other configurations that are considered meaningful by those skilled in the art for both assembly coding elements and tool assembly coding elements are also conceivable. Preferably, the tool receiving device includes a plurality of assembly coding elements, particularly at least two, more preferably at least three, and especially preferably at least four. The tool device preferably includes the same number of assembly coding elements as the tool receiving device.However, it is also conceivable that the number of tool assembly coding elements in the tool device is different from, and in particular larger than, the number of assembly coding elements in the tool receiving device.

[0079] Preferably, the assembly coding element of the carrying device is arranged on at least one carrying jaw of the carrying device. Preferably, the assembly coding element arranged on the at least one carrying jaw of the carrying device is configured as a raised portion. Preferably, the raised assembly coding element has a primary orientation that points away from the output axis, particularly along a direction extending transversely to, and at least substantially perpendicular to, the output axis. However, it is also conceivable that the assembly coding element arranged on the at least one carrying jaw of the carrying device may have other configurations that are considered meaningful by those skilled in the art. Preferably, the assembly coding element arranged on the at least one carrying jaw of the carrying device is arranged on an outer surface of the at least one carrying jaw, particularly away from the output axis. Preferably, the assembly coding element arranged on the at least one carrying jaw of the carrying device is arranged on an outer surface of the at least one carrying jaw that extends at least substantially parallel to the output axis. Alternatively or additionally, it is conceivable that the tool receiving device includes at least one assembly coding element arranged on a support surface of the tool receiving device. The assembly coding element arranged on the support surface of the tool receiving device may be configured as a mechanical or electronic assembly coding element.

[0080] Preferably, the assembly coding element of the carrying device is arranged adjacent to the inner circumferential surface of the at least one carrying claw. Preferably, the assembly coding element arranged on the at least one carrying claw of the carrying device is arranged directly adjacent to the inner circumferential surface. Alternatively or additionally, it is conceivable that the assembly coding element arranged on the at least one carrying claw of the carrying device is arranged on the outer circumferential surface of the at least one carrying claw. Preferably, the surface of the assembly coding element arranged on the at least one carrying claw of the carrying device forms part of the inner or outer circumferential surface of the at least one carrying claw.

[0081] Preferably, the clamping device, especially the at least one hook device of the clamping device, includes at least one assembly coding element. Preferably, the clamping device includes multiple assembly coding elements, especially at least two. However, it is also conceivable that the clamping device has a different number of assembly coding elements arranged on the hook device than 1 and 2. Preferably, the at least one assembly coding element of the clamping device constitutes a fixed coding element, which is configured to encode the fastening of the tool device on the tool receiving device. Preferably, the at least one assembly coding element of the clamping device is configured to encode the fastening of the tool device on the tool receiving device according to the key-keyhole principle. Preferably, the at least one assembly coding element of the clamping device is constructed as a radial coding element, especially a radial coding element that acts along a direction at least substantially perpendicular to the output axis. Preferably, the at least one assembly coding element of the clamping device is configured to encode the radially acting fastening of the clamping device for fastening the tool device to the tool receiving device. The assembly coding element of the clamping device is preferably configured to at least minimize or prohibit the tool device from being fastened to the tool receiving device, especially the support surface, by means of the clamping device when a corresponding assembly coding element is not present on the tool device. When a corresponding assembly coding element exists on the tool assembly, it is preferable that fastening can be achieved through the combined action of the assembly coding element of the clamping device and the corresponding assembly coding element of the tool assembly, based on the coding qualification. It is conceivable that the tool receiving device has only one or more assembly coding elements of at least the carrying device or only one or more assembly coding elements of at least the clamping device. It is also conceivable that the tool receiving device, replacing or adding to the assembly coding elements of the carrying device or the clamping device, has additional coding elements that enable coding of the arrangement of the tool assembly on the tool receiving device: for example, at least one coding element movable based on the arrangement of the tool assembly on the tool receiving device to release the arrangement of the tool assembly; at least one additional static coding element on the tool receiving device, for example, fitting into a slot on the tool assembly; at least one additional movably supported coding element, which is preferably movable after the suitable tool assembly is correctly arranged in the coding slot of the tool assembly, to, for example, unlock the start of the machine tool; or other coding elements deemed meaningful by a skilled professional.

[0082] Preferably, the assembly coding element of the clamping device is arranged in the jaws, especially the clamping slots of the jaws. Preferably, the at least one assembly coding element of the clamping device is integrally constructed with the jaws. However, it is also conceivable that the at least one assembly coding element of the clamping device is constructed independently of the jaws and fixed to the jaws by means of connections deemed meaningful by a person skilled in the art. Preferably, the assembly coding element of the clamping device is arranged on the clamping surface of the clamping device, especially directly adjacent to the clamping surface, which at least partially defines the clamping slots. Preferably, the at least one assembly coding element of the clamping device is constructed as a raised portion. However, it is also conceivable that the at least one assembly coding element of the clamping device has other configurations deemed meaningful by a person skilled in the art. The at least one assembly coding element of the clamping device may be arranged symmetrically or asymmetrically on the jaws with respect to the intermediate plane, especially the plane of symmetry. Preferably, the intermediate plane, especially the plane of symmetry, of the jaws extends at least substantially parallel to and / or includes the output axis. It is also conceivable that the at least one assembly coding element of the clamping device is arranged on the jaws spaced apart relative to the intermediate plane, especially the plane of symmetry, of the jaws.

[0083] The configuration according to the invention advantageously minimizes the possibility of incorrect tool assembly on the tool receiving device. It advantageously prevents unsuitable tool arrangements for the safe operation of machine tools from being placed on the tool receiving device. It advantageously, for example, prevents tool arrangements intended for machine tools with low maximum speeds from being placed on machine tools with high maximum speeds. It advantageously and reliably minimizes the possibility of unsuitable tool arrangement, especially at or on the tool receiving device. It allows for a structurally simple configuration that enables assembly coding. It advantageously and reliably minimizes the possibility of unsuitable tool arrangement, especially at or on the tool receiving device. It advantageously encodes the fastening of tool devices using clamping devices. It can, for example, prevent the possibility of fastening in cases of unsuitable tool device configurations—configurations that lack elements corresponding to at least one assembly coding element of the clamping device. It reliably prevents unsuitable tool devices from being fastened on the tool receiving device. It advantageously achieves a compact configuration. This can advantageously enable reliable protection of the assembly coding element of the clamping device from damage, especially by arranging the at least one assembly coding element in the clamping slot of the claw.

[0084] The tool apparatus and / or machine tool system according to the invention are not limited to the applications and embodiments described above. In particular, the tool apparatus and / or machine tool system according to the invention may have a different number of elements, components, units, and method steps than those mentioned, in order to meet the working mode described herein. Furthermore, regarding the value range given in the disclosure, values ​​within the mentioned boundaries should also be disclosed and can be used arbitrarily. Attached Figure Description

[0085] Further advantages are described in the accompanying drawings, which illustrate embodiments of the invention. The drawings, description, and claims contain multiple combinations of features. Those skilled in the art may also view these features individually and generalize them into other meaningful combinations. The drawings show:

[0086] Figure 1 A schematic diagram of a first embodiment of the tool apparatus according to the present invention.

[0087] Figure 2 A schematic diagram of a second embodiment of the tool device according to the present invention.

[0088] Figure 3a The bearing flange of the second embodiment of the tool device,

[0089] Figure 3b The bearing flange of the third embodiment of the tool device,

[0090] Figure 4a Figure 3a An enlarged view of the load-bearing flange.

[0091] Figure 4b Figure 3a An enlarged view of the clamping fins of the bearing flange.

[0092] Figure 5 Figure 2 A cross-sectional view of the tool device, AA

[0093] Figure 6 A schematic diagram of a third embodiment of the tool device according to the present invention.

[0094] Figure 7 Figure 6 An enlarged cross-sectional view AA of the tool apparatus.

[0095] Figure 8a Figure 6 A cross-sectional view of the tool device, AA

[0096] Figure 8b Figure 6 A cross-sectional view AA of a tool assembly, featuring a conventional tool receiver for a handheld machine tool.

[0097] Figure 9 With handheld machine tools and Figure 6 The cross-section of the tool receiving device of the machine tool system, which is arranged on the tool receiving device of the handheld machine tool.

[0098] Figure 10a Figure 9 A view of a portion of the tool receiving device.

[0099] Figure 10b A view of a portion of the first alternative tool receiving device.

[0100] Figure 10c A view of a portion of the second alternative tool receiving device.

[0101] Figure 10d A view of a portion of the third alternative tool receiving device.

[0102] Figure 11 Figure 9 A schematic diagram of the tool receiving device for a handheld machine tool.

[0103] Figure 12 Tool receiving device along Figure 9 A cross-sectional view of the first orthogonal plane.

[0104] Figure 13 Figure 9 A detailed view of the tool receiving device's claw, showing the assembly coding element with the tool receiving device's clamping mechanism arranged thereon.

[0105] Figure 14a A tabular list of possible arrangements and configurations of tool assembly coding elements for a tooling device.

[0106] Figures 14b-14e Other possible configurations of the bearing flange of the tool assembly,

[0107] Figure 15a The configuration of the tool device and / or tool receiving device includes at least one spring-loaded safety and / or positioning element.

[0108] Figure 15b Replacement of tool device and / or tool receiving device Figure 15a The configuration includes at least one spring-loaded safety and / or positioning element.

[0109] Figure 16a The tool assembly configuration is a top view of a crown-shaped drill bit.

[0110] Figure 16b Figure 16a A cross-sectional view of the tool device.

[0111] Figure 17a Tooling devices as a replacement for crown drill bits Figure 15a and 15b Top view of the configuration

[0112] Figure 17b Figure 17a A cross-sectional view of the tool device.

[0113] Figure 18a The tool device as a replacement for the wire brush Figure 15a and 15b Top view of the configuration, and,

[0114] Figure 18b Figure 18a A cross-sectional view of the tooling device.

[0115] In the following figures, the same components are given the same reference numerals. Detailed Implementation

[0116] Figures 1 to 8b These relate to tooling devices 11 for processing, particularly grinding, and / or dividing one or more workpieces, the workpieces comprising, for example, wood, metal, plastic, rock, or combinations thereof.

[0117] Figure 1 A first embodiment of the tool device 11 according to the invention, which is flat and at least substantially disc-shaped, is shown. The tool device 11 has: a particularly hypothetical tool rotation axis a; and an attachment device 13 for connecting the tool device 11 to a tool receiving device 213 of a handheld machine tool 211 (see...). Figures 9 to 13 ) connection; and work area 15.

[0118] The tool rotation axis a defines the center point and / or axis of the tool device 11, about which the tool device 11 rotates during operation by means of the machine tool 211. The attachment device 13 is arranged in the radially inner region of the tool device 11 about the tool rotation axis a.

[0119] The attachment device 13 has a slot 17 forming a material through-hole through the tool device 11, the slot extending along the axial direction of the tool rotation axis a through the entire material thickness t of the attachment device 13. The slot 17 can be configured to completely surround, particularly along the circumference of, the carrying device 215 and the clamping device 217 of the tool receiving device 213 (see...). Figure 9 The notch 17 completely surrounds the tool rotation axis a in at least one plane, for example, in an orthogonal plane extending from the tool rotation axis a.

[0120] The attachment device 13 can be fastened to the tool receiving device 213 such that the output axis A of the output shaft of the handheld machine tool 211 and the tool rotation axis a of the tool device 11 are substantially coincident.

[0121] The attachment device 13 has at least one clamping wing 19. Preferably, the attachment device 13 has four clamping wings 19 that extend radially along the tool rotation axis a and radially delimit the slot 17 of the attachment device 13 at least partially. The clamping wings 19 are delimited, in particular, substantially radially relative to the tool rotation axis a by each of a first boundary edge 21 located on a first, particularly smallest, boundary circle 23 about the tool rotation axis a.

[0122] The clamping wing 19 is primarily bounded in a radial direction relative to the tool rotation axis a by a second boundary edge 25, which lies on the second, and particularly the largest, boundary circle 27 about the tool rotation axis a. Specifically, the diameter D1 of the first boundary circle 23 is smaller than the diameter D2 of the second boundary circle 27. Preferably, the first and second boundary edges 25 of the clamping wing 19 at least partially bound the notch 17 in the radial direction along the tool rotation axis a. The first boundary circle 23 is concentric with the second boundary circle 27 about the tool rotation axis a. The first diameter D1 of the first boundary circle 23 is approximately 22 mm, thus adapting the tool assembly 11 to conventional hand-held machine tools, particularly angle grinders, ensuring backward compatibility. Alternatively, the first diameter D1 of the first boundary circle 23 may not be 22 mm, but rather smaller than 22 mm, allowing the tool assembly 11 to also adapt to smaller conventional hand-held machine tools, particularly angle grinders.

[0123] The second boundary edge 25 can be designed to center and support the tool assembly 11 in the radial direction. The first boundary edge 21 can be bent around the tool rotation axis a, corresponding to the arc of the boundary circle 23. The second boundary edge 25 can be bent around the tool rotation axis a, corresponding to the arc of the boundary circle 27.

[0124] The attachment device 13 has a torque receiving region 40. The torque receiving region 40 has a particularly straight or curved drive edge 40a and / or a particularly flat or curved drive surface 40b. Thus, the torque receiving region 40 of the tool device 11 can contact the torque transmission region 219 of the tool receiving device 213, particularly in the form of point contact, preferably line contact, and most preferably surface contact. The torque receiving region 40 is arranged spaced apart from the tool rotation axis a.

[0125] The torque receiving region 40 of the attachment device 13 is configured to transmit driving force from the machine tool 211 to the tool device 11. The torque receiving region 40 is arranged axially along the tool rotation axis a between slots 17 extending through the entire material thickness t of the tool device 11. The slots 17 have at least four torque receiving regions 40, which are arranged rotationally symmetrically about the tool rotation axis a.

[0126] The drive surface 40b, particularly the drive surface region of the drive surface 40b, is provided for providing a form-locking and / or force-locking connection with the tool receiving device 213 of the handheld machine tool 211, particularly enabling the tool device 11 to rotate. The drive surface 40b is defined by at least the drive edge 40a along the axial direction of the tool rotation axis a. At least the drive surface region is flat. The drive surface 40b and the drive edge 40a are angled, particularly against the direction of rotation of the tool receiving device 213 during operation. The drive surface 40b and the drive edge 40a are angled α up to 30°, particularly up to 25°, circumferentially about the tool rotation axis a, relative to the plane unfolded in the axial and radial directions through the tool rotation axis a. Figure 3a As shown.

[0127] The first boundary edge 21 extends circumferentially about the tool rotation axis a through the coding edge 35, particularly the coding edge region of the coding edge 35, and the driving edge 40a, particularly the driving edge region of the driving edge 40a, as a boundary. Figure 4a As shown. At least the driving edge region of the driving edge 40a is constructed in a straight line. At least the encoded edge region of the encoded edge 35 is constructed in a straight line. At least the encoded edge 35 is constructed substantially curved.

[0128] Encoding edge 35 connects the first boundary edge 21 to the second boundary edge 25. Driving edge 40a connects the first boundary edge 21 to the adjacent second boundary edge 25. Encoding edge 35 and driving edge 40a extend substantially in the radial direction.

[0129] The first boundary circle 23 has at least one imaginary projected edge 22 located between two circumferentially adjacent first boundary edges 21, the projected edge being located on the first boundary circle 23 and extending concentrically with the first boundary circle 23 in the circumferential direction about the tool rotation axis a. Here, the circumferential extension dimension of the at least one first boundary edge 21 located on the first boundary circle 23 is larger than the extension dimension of the adjacent imaginary projected edge 22 located on the first boundary circle 23, by up to 10%. Preferably, one, especially each, the projected edge 22 is smaller than the first boundary edge 21 adjacent to the projected edge 22. This allows for particularly advantageous centering of the tool device 11, especially pre-centering or coarse centering.

[0130] The clamping wing 19 can be limited, particularly substantially, in a radial direction relative to the tool rotation axis a by each of a second boundary edge 25, the second boundary edge being located on the second, particularly largest, boundary circle 27 about the tool rotation axis a.

[0131] Boundary edges 21 and 25, coding edge 35, and driving edge 40a constitute the boundary profile of slot 17. In particular, the first boundary edge 21, coding edge 35, and driving edge 40a form the profile of clamping wing 19. Driving edge 40a and coding edge 35 define and connect the first boundary edge 21 along the circumferential boundary about the tool rotation axis a.

[0132] The driving edge 40a and / or driving surface 40b are folded at an angle α up to 30°, for example, about 25°, relative to the plane unfolded in the axial and radial directions through the tool rotation axis a.

[0133] The driving surface 40b and the driving edge 40a are folded at an angle, especially against the direction of rotation of the tool receiving device 213 during operation.

[0134] The driving surface 40b and the driving edge 40a are folded at an angle α about 30°, for example, about 25°, along the circumference of the tool rotation axis a relative to the plane unfolded in the axial and radial directions through the tool rotation axis a. Figure 3a As shown.

[0135] The coding edge 35 is arranged substantially parallel to and spaced from the radial direction of the radial axis r forming the tool rotation axis a up to 8 mm, particularly up to 6 mm, for example 4.85 mm. The coding edge 35 is angled relative to the drive edge 40a along the circumferential direction of the tool rotation axis a, and particularly against the direction of rotation of the tool receiving device 213 during operation of the machine tool 211, preferably up to 40°. The extension lines of the coding edge 35, particularly the extension lines of the coding edge region, and the extension lines of the drive edge 40a, particularly the extension lines of the drive edge region, which circumferentially adjoins the coded edge, extend particularly on the same side of the tool rotation axis a, such that the tool rotation axis a does not separate the extension lines of the coding edge 35 and the extension lines of the drive edge 40a.

[0136] The clamping wings 19 are arranged symmetrically around the tool's rotation axis a. Alternatively, the clamping wings 19 may be staggered by 90° around the tool's rotation axis a, resulting in four rotational positions within a 360° rotation of the tool assembly 11 around the tool's rotation axis a. Or, the clamping wings 19 may be staggered by 180° or 60° around the tool's rotation axis a, resulting in two or six rotational positions within a 360° rotation of the tool assembly 11 around the tool's rotation axis a.

[0137] The clamping wing 19 extends at least substantially along an orthogonal plane extending radially along the tool's rotation axis a. In particular, this orthogonal plane extends substantially orthogonally to the tool's rotation axis a.

[0138] In particular, one or more clamping wings 19 are asymmetrical about each plane of symmetry about the radial and axial directions of the tool rotation axis a, and especially not mirror-symmetric.

[0139] Figure 4b A detailed view of one of the clamping wings 19 is shown. Preferably, the clamping wing 19 has a maximum reference parameter D corresponding to the spring stiffness, the value of which comes from a range of 10,000 N / mm to 350,000 N / mm. The maximum reference parameter D of the clamping wing corresponding to the spring stiffness is preferably obtained by the following relationship.

[0140] F = Dz, where...

[0141] Wherein, L represents the maximum average extension dimension of the clamping wing 19 between the first boundary circle 23 and the second boundary circle 27, particularly along the direction extending at least substantially parallel to the radial axis r; b represents the maximum tangential extension dimension of the clamping wing 19 along the second boundary circle 27; and h represents the maximum material thickness of the clamping wing 19 in the axial direction along the tool rotation axis a. The maximum material thickness h can preferably correspond to a value from the range of 0.5 mm to 1.6 mm.

[0142] The slot 17 is constructed in such a way that the tool device 11 can only be pushed onto the tool receiving device 213 of the handheld machine tool 211 and driven from one side.

[0143] In particular, the boundary contour of the slot 17 has at least sectioned coding portions implemented as coding edges 35, which are designed to configure the tool device 11 so that it can only be connected circumferentially about the tool rotation axis a by means of the tool receiving device 213 of the handheld machine tool 211 with the side of the tool device 11 that is configured to receive the tool device 11 in a form-locking manner. Here, the coding portion is constructed such that the slot 17 prevents the tool device 11 from being connected to the tool receiving device 213 in a form-locking manner with the side of the tool device 11 opposite to it, thereby avoiding the assembly of the tool device 11 with the handle side reversed. This allows for immediate error disclosure and / or error avoidance according to the Poka Yoke principle, so that the operator receives feedback when the tool device is not connected to the tool receiving device 213 with the side configured to receive the tool receiving device 213.

[0144] Encoding can be performed here by encoding edge 35 connecting the first boundary edge 21 and the second boundary edge 25 and / or by drive edge 40a of slot 17. Encoding can be performed in particular by means of the orientation of encoding edge 35 of slot 17 such that if the orientation of encoding edge 35 is asymmetrical or non-axially symmetric about drive edge 40a, it is guaranteed that at least the conjugate profiles of tool device 11 and tool receiving device 213 corresponding to encoding edge 35 and / or drive edge 40a are not connectable on both sides.

[0145] "Connectable on one side" should be understood in the context as a side-related code of the attachment device 13 of the tool device 11, which is configured to enable the tool device 11 to be rotated and carried in a form-locking manner by the tool receiving device 213 of the handheld machine tool 211 in a side-related manner and to avoid the assembly of the tool device 11 with the side reversed.

[0146] The clamping wing 19 extends at least substantially along an orthogonal plane relative to the tool rotation axis a and is asymmetrical about each plane of symmetry that unfolds about the radial and axial directions through the tool rotation axis a, especially not mirror-symmetric.

[0147] In particular, the radial axis r is arranged such that the clamping wing 19 is substantially divided into two halves along the circumference about the tool rotation axis a, especially into approximately equal halves along a radial plane extending through the axial and radial directions. Preferably, the radial axis r forms an angle bisector that circumferentially separates the extension dimensions of at least one clamping wing 19.

[0148] Preferably, the extension dimension of at least one of the clamping wings 19 is configured in the circumferential direction about the tool rotation axis a such that the at least one clamping wing 19 does not have axisymmetry, making it possible, in particular, only the orientation-dependent or one-sided connectability of the tool device 11 and the handheld machine tool 211.

[0149] The tool assembly 11 has a first side 45 that, in a secured state, points toward the handheld power tool 211. The tool assembly 11 also has a second side 47 facing away from the first side 45 that, in a secured state with the handheld power tool 211, points away from it. The first side 45 and the second side 47 define the tool assembly 11 along the axial direction of the tool's rotation axis a.

[0150] The first side 45 of the tool device 11 has a radially inward first side region 46, which is configured to form a contact surface for abutting against the tool receiving device 213 of the machine tool 211, thereby minimizing the material stress of the tool device 11 in the axial direction.

[0151] The working area 15 is disc-shaped and flat. The working area 15 is located radially outward and limits the radial extension of the tool device 11. The working area 15 has a plurality of segmented sections 31, which are configured for cutting or dividing the workpiece to be processed. The working area 15 has a plurality of material through-holes 33 extending radially along the tool rotation axis a, which are configured to at least partially separate the segmented sections 31 circumferentially about the tool rotation axis a. Preferably, the segmented sections 31 have a plurality of cutting elements implemented as grinding bodies, which are, for example, arranged on the end side of the tool device 11 and forming the limiting portion of the tool device 11, or, for example, sharp portions forming cutting edges (not shown further). The sharp portions may become pointed in the radial direction along the tool rotation axis a and limit the maximum radial extension of the tool device 11.

[0152] In an alternative embodiment, the tool device 11 can be configured as a grinding disc for grinding a workpiece. Here, the working area 15 can have multiple grinding elements, such as abrasive grains, for grinding the workpiece. In another alternative embodiment, the tool device 11 can be configured as a circular saw blade for cutting a workpiece. Here, the working area 15 can have multiple cutting teeth (not shown) projecting radially along the tool's rotation axis a for cutting or dividing the workpiece.

[0153] Those skilled in the art are aware of various configurations of the work area 15 that can be applied with the attachment device 13 according to the invention of the tool device 11, so it is not necessary to explore all possible configurations of the work area 15 in detail.

[0154] Figure 2 Figures 8 to 8 show another embodiment of the tool device 11 according to the invention. The attachment device 13 is configured here as a support flange 14, which is shape- and / or material-lockingly connected to the working area 15. The working area 15 surrounds the support flange 14 360° in a plane and has a particularly minimum radial extension dimension about the tool rotation axis a that is smaller than the particularly maximum radial extension dimension of the support flange 14. The support flange 14 is interlocked with the working area 15, as shown in… Figure 5 In China Figure 2 As can be seen in the cross-sectional view AA of the tool device.

[0155] Figures 2 to 5 The bearing flange 14 is disc-shaped and flat. The bearing flange 14 has a first bearing plane 52 and a second bearing plane 54 spaced apart from the first bearing plane 52. The bearing planes 52 and 54 are arranged orthogonally to the tool rotation axis a and form the material thickness t of the attachment device 13.

[0156] Especially when the tool assembly 11 is positioned on the handheld machine tool 211, the first bearing plane 52 limits the bearing flange 14 along the tool rotation axis a on the side oriented towards the handheld machine tool 211. Especially when the tool assembly 11 is positioned on the handheld machine tool 211, the second bearing plane 54 limits the tool assembly 211 on the side opposite to the handheld machine tool 211.

[0157] The bearing flange 14 has a first attachment surface 49 that points towards the hand-held machine tool 211 in a secured state. The bearing flange 14 also has a first bearing surface 51 that points towards the hand-held machine tool 211 in a secured state. The bearing flange 14 has a second bearing surface 53 facing away from the first bearing surface 51. The first bearing surface 51 and the second bearing surface 53 define the bearing flange 14 in the axial direction along the tool rotation axis a. In this embodiment, the first bearing surface 51 is constructed as a surface region of the first attachment surface 49, because the first attachment surface 49 transitions into the first bearing surface 51.

[0158] The first bearing plane 52 extends along the first bearing surface 51, or attachment surface 49. The second bearing plane 54 extends along the second bearing surface 53. The torque receiving region 40 extends axially between the two bearing surfaces 51 and 53.

[0159] The bearing flange 14 is overlapped with the working area 15, such that the first bearing surface 51 of the bearing flange 14 is form-locked and / or material-locked with the second side surface 47 of the working area 15, forming an annular connection area 55. Preferably, the second side surface 47 has a radially inward second side surface region 48, which is configured for a material-locked and / or form-locked connection with the radially outward first bearing surface region 51 of the first bearing surface 51.

[0160] The support flange 14 can be form-locked to the working area 15. Riveting or other connections, such as plug-in connections, can be used, for example, based on a material protrusion (not shown) extending in the axial direction along the tool rotation axis a—which can be formed, for example, by means of partial solid deformation of the support flange 14 in the axial direction along the tool rotation axis a of the support flange 14—to penetrate into the working area 15 and transfer the rotational force from the support flange 14 to the working area 15 in a form-locking manner.

[0161] The support flange 14 may have a safety device 63 configured as a support lip or a safety device 63, such that the safety device 63, in its secured state with the hand-held machine tool 211, is arranged such that, in the event of a break or unintentional loosening of the connection between the support flange 14 and the working area 15, the working area 15 is secured by the support flange 14 and the hand-held machine tool 211 by form-locking the support flange 14, and in particular the safety device 63 of the support flange 14, to prevent movement of the working area 15 in the axial direction along the tool rotation axis a. Preferably, in the event of unintentional loosening of the connection, the working area 15 can be held between the support flange 14, and in particular the safety device 63 of the support flange 14, and the tool receiving device 213, thereby effectively protecting the operator from the impact of the flying working area 15.

[0162] The safety device 63 preferably has a configuration with the maximum radial extension of the bearing flange 14 exceeding the minimum radial extension of the working area 15, such that the bearing flange 14 overlaps the working area 15 and thus achieves a shape-locking connection of the working area 15 in the axial direction along the tool rotation axis a when clamped by the tool receiving device 213 of the handheld machine tool 211.

[0163] Figure 3b An embodiment of the tool device 11 according to the invention is shown, comprising at least one tool assembly coding element 304, 306, 312, 314, configured to cooperate with at least one assembly coding element 300, 302, 308, 310 of the tool receiving device 213 in a state where the tool device 11 is arranged on the tool receiving device 213. The at least one tool assembly coding element 304, 306, 312, 314 is arranged on at least one clamping wing 19 of the attachment device 13. The maximum extension dimension of the at least one tool assembly coding element 304, 306, 312, 314 along the radial axis r is at most equivalent to the maximum distance between the first boundary circle 23 and the second boundary circle 27 of the attachment device 13, as can be exemplarily derived from the different implementation possibilities of the attachment device 13 in FIG. 14. The at least one tool assembly coding element 304, 306, 312, 314 is preferably arranged on the clamping wing 19 of the attachment device 13 in the angular region between the drive edge 40a and the coding edge 35 of the attachment device 13.

[0164] Figure 3b The illustrated tool device 11, replacing or additional to the at least one tool assembly coding element 304, 306, 312, 314, includes at least one additional tool assembly coding element 316, 318, 320, 322, configured to receive a safety and / or positioning element 324 (e.g., in...) movably supported on the tool receiving device 213. Figure 15a and15b (As shown in the diagram). The safety and / or positioning element 324 of the tool receiving device 213, which is movably supported, can be configured, for example, as a spring-loaded locking pin or the like. The at least one additional tool assembly coding element 316, 318, 320, 322 is preferably arranged on the clamping wing 19. Preferably, the at least one additional tool assembly coding element 316, 318, 320, 322 is configured as a material-free through-hole in the clamping wing 19, particularly a slot extending completely through the maximum material thickness h of the clamping wing 19. However, it is also conceivable that the additional tool assembly coding elements 316, 318, 320, 322 are configured as recesses on the clamping wing 19 and / or the bearing flange 14, for example, recesses manufactured by an embossing method, such as exemplarily in Figure 15a and 15b As shown in the figure. The bearing flange 14 can be integrally constructed with the working area 15 or connected to the working area 15 by means of fastening elements, particularly manufactured by an embossing method, for form-locking and / or force-locking (see Figure 15). Figure 15a and 15b ).

[0165] The maximum diameter dw of the at least one additional tool assembly coding element 316, 318, 320, 322 preferably corresponds to a value in the range of 0.8 mm to 1.6 mm. Preferably, the at least one additional tool assembly coding element 316, 318, 320, 322 is arranged on the clamping wing 19 in the radial region between the first boundary circle 23 and the second boundary circle 27. However, it is also conceivable that the at least one additional tool assembly coding element 316, 318, 320, 322 is arranged in other regions of the tool device 11. Advantageously, the tool device 11 includes a plurality of additional tool assembly coding elements 316, 318, 320, 322, which are preferably evenly distributed on the tool device 11, and in particular on the bearing flange 14 of the tool device 11. In particular, the additional tool assembly coding elements 316, 318, 320, 322 are arranged on a common ring 326 having a maximum diameter in the range of 23 mm to 28 mm. The common ring preferably has a center point arranged on the tool's rotation axis a.

[0166] Figure 6Figures 8 to 8 show another embodiment of the tool assembly 11. The support flange 14 is here implemented as being bent in the axial direction, such that the support flange 14 is substantially can-shaped. The support flange 14 has a substantially cylindrical sidewall 59 that extends in the axial direction and defines the working area 15 in the radial direction along the tool rotation axis a. The sidewall 59 has a substantially circular cross-section. In an alternative embodiment, the sidewall 59 may have a cross-section in which the sidewall 59 has a varying distance from the tool rotation axis a in a plane orthogonal to the tool rotation axis. The sidewall 59 is substantially concentric with the first boundary circle 23 and the second boundary circle 27. The sidewall 59 defines the minimum radial extension dimension of the working area 15 and, in particular, causes a form-locking connection of the working area 15 in the radial direction along the tool rotation axis a. Additionally, the sidewall 59 may also cause a force-locking connection between the sidewall 59 and the working area 15 in the axial direction along the tool rotation axis. The sidewall 59 extends radially spaced from the tool rotation axis a. The sidewall 59 extends between the upper first bearing plane 52 and the lower second bearing plane 54. The sidewall 59 is substantially radially closed about the tool rotation axis a.

[0167] In this embodiment, the first bearing surface 51 is spaced apart from the first attachment surface 49 in the radial direction and in the axial direction along the tool rotation axis a.

[0168] The first bearing plane 52 extends along the first attachment surface 49. The second bearing plane 54 extends along the second bearing surface 53.

[0169] The torque receiving area 40 extends axially between the first attachment surface 49 of the bearing flange 14 and the opposite second attachment surface 50 away from the first attachment surface 49.

[0170] The working area 15 is connected to the support flange 14 such that the working area 15 protrudes relative to the support flange 14 along the tool rotation axis a in the direction of the tool receiving device 213 facing the handheld machine tool 211 up to a height h of 0.6 mm, for example by... Figure 7 As shown. Here, the first side surface 45 has a side region that forms the abutment surface 61, which is provided for support on the tool receiving device 213 of the handheld machine tool 211. Preferably, the abutment surface 61 of the working area 15 protrudes relative to the attachment surface 49 at a height h in the axial direction along the tool rotation axis a.

[0171] exist Figure 8a The diagram also shows a cross-sectional view of the tool assembly 11, which has a support lip extending radially from the sidewall 59 along the tool rotation axis a and configured as a safety device 63. The support lip is provided for connecting the working area 15 to the support flange 14 and forming a connection area 55 between the working area 15 and the support flange 14.

[0172] exist Figure 8b The tool device 11 is shown as being received in an alternative tool receiving device of an alternative handheld machine tool, with the output shaft of the alternative handheld machine tool resting against the abutment surface 61 of the working area 55, and with a lock nut shown schematically, which rests against the bearing lip 63 of the bearing flange 14 and locks or secures the tool device 11 in the axial direction of the tool rotation axis a.

[0173] Figure 9 The diagram illustrates a machine tool system, or machining system, comprising a handheld machine tool 211 with a tool receiving device 213 movable about an output axis A and a tool device 11. The tool device 11 is received on the tool receiving device 213 such that the output axis A coincides with, in particular, an imaginary geometric tool rotation axis a.

[0174] The tool receiving device 213 is designed to hold the tool device 11 on the handheld machine tool 211 such that the output axis A and the tool rotation axis a are substantially coincident.

[0175] Preferably, the tool receiving device 213 has at least one carrying device 215 and a clamping device 217 movable relative to the carrying device 215.

[0176] The clamping device 217 has two claws 218a and 218b configured as hook devices 218, which are rotatably supported relative to each other about the clamping device rotation axis k of the clamping device 217.

[0177] In order to transmit driving force to the tool device 11, the drive device 215 has four torque transmission regions 219 arranged spaced apart from the output axis A. The torque transmission regions 219 can be respectively constructed as output surfaces 219b, especially output surface regions, or output edges 219a, especially output edge regions.

[0178] The carrying device 215 and the clamping device 217 shown in Figures 10 and 11 are provided with a slot 17 extending through the entire material thickness of the tool device 11 and clamping the tool device 11 with the tool receiving device 213 by means of a hook device 218 that is movable in a radial direction substantially along the output axis A.

[0179] The tool receiving device 213 has a generally rectangular opening 225 configured to receive hook devices 218. Each of the two hook devices 218 has at least one clamping surface 233 for transmitting at least axial force to the tool device 11.

[0180] The carrying device 215 is constructed by two carrying claws 216a and 216b, which are particularly used as guide claws. These carrying claws are configured to guide the clamping device 217 of the tool receiving device 213 radially, in such a way that the clamping device 217 can move about the clamping device rotation axis k in the radial direction along the output axis A, and this movement is limited perpendicular to the radial direction. The carrying claws 216a and 216b limit the length of the opening 225 along the radial direction of the tool rotation axis a, extending the substantially rectangular opening 225 longitudinally.

[0181] The maximum radial extension dimension of the carrying device 215 is greater than that of the clamping device 217 in the fastened state. Thus, the carrying claws 216a and 216b, which protrude radially along the output axis A when the tool receiving device 213 is rotated, ensure the protection of the hook claws 218a and 218b in such a way that the hook device 218 is protected by the carrying device 215 in the event of unintentional contact with the workpiece.

[0182] Hooks 218a and 218b are in Figure 9 For better illustration, the claws are arranged in a hypothetical state, namely, in a tightened state (right claw 218a) and a loosened state (left claw 218b). This hypothetical state of the claws 218a and 218b is preferably not achievable in the handheld machine tool 211 according to the invention, because both claws 218a and 218b are either both arranged in the tightened state or both arranged in the loosened state. Preferably, the claws 218a and 218b are supported and can move synchronously.

[0183] In the disengaged state of the clamping device 217, the hooks 218a and 218b protrude relative to the driving device 215 in the axial direction along the output axis A, for example in Figure 9 As can be seen at the left pawl 218a. It can be seen that the pawls 218a and 218b protrude much more along the axial direction of the output axis A relative to the carrying device 215 in the detached state of the tool receiving device 213 than in the tightened state.

[0184] The clamping device 217 has pawls 218a and 218b, each having at least one circumferential surface 245 that limits the maximum radial extension of the pawls 218a and 218b. The circumferential surfaces 245 of the pawls 218a and 218b are oriented apart from each other. The pawls 218a and 218b each have a first circumferential surface 245a and a second circumferential surface 245b, which are separated in the axial direction by a clamping slot 231 of the clamping device 217. The first and second circumferential surfaces 245a and 245b limit the radial extension of the clamping slot 231. The first circumferential surface 245a is bent at least about the output axis A.

[0185] To clearly and visually demonstrate, Figure 9The right hook 218a is in a secured state, in which the hook 218a holds the tool device 11 on the tool receiving device 213. The hook device 218 is surrounded by a support surface 261.

[0186] The torque transmission region 219 of the drive device 217 has an output surface 219b, particularly an output surface region, and an output edge 219a, particularly an output edge region. At least the output surface region of the output surface 219b can be flat. At least the output edge region of the output edge 219a can be straight.

[0187] The output surface 219b and output edge 219a are angled relative to the plane unfolded in the axial and radial directions through the output axis A, and particularly against the direction of rotation of the tool receiving device 213 during operation of the handheld machine tool 211, preferably up to 30°. The tool receiving device 213 also has a flat annular support surface 261, which is configured to support at least the contact surface 61 of the tool device 11 in the axial direction. The support surface 261 is radially spaced from the clamping surface 233 of the hook device 218, and particularly the clamping device 217.

[0188] The working area 15 of the tool device 11 is arranged on the attachment device 13 such that, in the fastened state, the working area 15 protrudes relative to the attachment device 13 along the tool rotation axis a in the direction facing the tool receiving device 213 of the handheld machine tool 211. The contact surface 61 of the working area 15 contacts the support surface 261 of the handheld machine tool 211 in the fastened state of the tool device 11, forming a circumferential force-locking connection along the tool rotation axis a of the handheld machine tool 11.

[0189] The support surface 261 extends in the radial direction along the tool rotation axis a between a first radial spacing and a second radial spacing, wherein the first radial spacing is smaller than the second radial spacing.

[0190] The clamping wing 19 of the tool device 11, or the first boundary edge 21 of the clamping wing 19, in the fastened state of the tool device 11 and the handheld machine tool 211, has a first, particularly minimal, radial spacing relative to the support surface 261 that protrudes up to 4 mm in the radial direction of the output axis A, such that there is no support surface 261 or support material in this area and the clamping wing 19 is bendable in the axial direction.

[0191] The tool receiving device 213, especially the hook device 218, has an operating device 229 which is configured to switch the hook device 218 from a loose state to a tight state when the operating device 229 is axially operated by an operating force. In the loose state, the tool device 11 can be removed from or placed on the tool receiving device 213. In the tight state, the tool device 11 is connected to the tool receiving device 213.

[0192] The hook device 218 also has a radial clamping slot 231, which is configured to receive the at least one clamping wing 19 and clamp it in the axial direction of the output axis A in a tightened state and release it in a loosened state. The clamping slot 231 has a clamping surface 233, which is configured to apply clamping action to the tool device 11.

[0193] The hook device 218 is pivotally supported about the rotation axis k of the clamping device, which is in particular substantially orthogonal to the output axis A, so that the tool device 11 with attachment device 13 of different thicknesses can be clamped by means of the hook device 218 according to the pivot angle of the hook device 218, in particular the clamping surface 233 of the hook device 218, which is inclined relative to the output axis A.

[0194] When the tool device 11 is fastened to the handheld machine tool 211, the torque transmission region 219 of the tool receiving device 213 is located between the first orthogonal plane 235 and the second orthogonal plane 237 of the tool receiving device 213. The tool receiving device 213 has two carrying claws 216a and 216b, each with two torque transmission regions 219, and these two carrying claws are arranged symmetrically about the output axis A.

[0195] The first orthogonal plane 235 limits the tool receiving device 213 along the direction of the output axis A on the side facing the handheld machine tool 211, and the second orthogonal plane 237 limits the tool receiving device 213 on the side away from the handheld machine tool 211.

[0196] The torque transmission region 219 extends at least in sections along the radial direction of the output axis A between a first and a second radial distance relative to the output axis A, wherein at least one of the sections is designed for torque transmission 219 from the handheld machine tool 211 to the tool assembly 11.

[0197] Preferably, one torque transmission region 219 of the handheld machine tool 211, preferably multiple, and particularly preferably all torque transmission regions 219 contact the torque receiving region 40 of the tool device 11 at least in sections in the form of point contact, preferably line contact, and particularly preferably surface contact.

[0198] Figure 10b Figures 10c and 10d show an alternative configuration of the tool receiving device 213 for receiving a tool assembly of the handheld machine tool 211, the tool assembly having a symmetrical attachment device. Figure 10b The tool receiving device 213 shown in 10c and 10d has a configuration at least substantially similar to that of the tool receiving device 213 shown in the previous figure. Unlike the tool receiving device 213 shown in the previous figure, in... Figure 10bThe tool receiving device 213 shown in 10c and 10d has a carrying device 215 symmetrically configured about a plane of symmetry extending at least substantially parallel to the output axis A. Preferably, the output axis A extends in the plane of symmetry, and the carrying device 215 is symmetrically configured about this plane of symmetry.

[0199] Figure 10b The carrying device 215 shown preferably has carrying claws 216a and 216b with mutually symmetrical configurations. In particular, the carrying claws 216a and 216b are configured in a mirror-symmetric manner, especially with respect to a plane of symmetry including the output axis A. Preferably, the carrying claws 216a and 216b are each configured in a mirror-symmetric manner with respect to a plane extending at least substantially perpendicular to this plane of symmetry. Preferably, at least one guide slot of the carrying device 215 is arranged on each of the carrying claws 216a and 216b, not shown in detail and related to… Figure 10b The tool receiving device 213 is correspondingly constructed with a clamping wing having a particularly rectangular cross-section that can be inserted into and / or arranged in the guide slot. In particular, the carrying claws 216a and 216b each have at least one guide ramp. The guide ramp is arranged on the outer surface of each carrying claw 216a and 216b that at least partially demarcates the guide slot.

[0200] Figure 10c The illustrated carrying device 215 preferably has carrying claws 216a and 216b with mutually symmetrical configurations. In particular, the carrying claws 216a and 216b are mirror-symmetrically configured, especially with respect to a plane of symmetry including the output axis A. Preferably, the carrying claws 216a and 216b are mirror-symmetrically configured with respect to a plane extending at least substantially perpendicular to this plane of symmetry. The carrying claws 216a and 216b each have a rectangular basic shape with at least two chamfered edges. On the outer side of each carrying claw 216a and 216b connecting the two chamfered edges, the carrying claws 216a and 216b each include a protrusion. The protrusions of each carrying claw 216a and 216b are preferably fan-shaped. The protrusions of each carrying claw 216a and 216b can, for example, be configured as... Figure 10c The tool receiving device 213 shown is equipped with an encoding element. Preferably, the clamping device 217 is at least substantially perpendicular to... Figure 10c The clamping surface 233 of the clamping device 217 of the tool receiving device 213 shown has a fan-shaped ridge extending from its inner surface. The ridge of the clamping device 217 can, for example, be configured as... Figure 10c The tool receiving device 213 shown has a fastening coding element. Preferably, it can be advantageously achieved by means of... Figure 10cThe clamping device 217 of the tool receiving device 213 shown minimizes the need for fastening of tool devices (not shown in detail here) with slots that do not correspond to the protrusions of the clamping device 217. Preferably, the protrusions of the carrying claws 216a, 216b and the protrusions of the clamping device 217 form four circumferential profiles of the tool receiving device 213 in a plane extending at least substantially perpendicular to the output axis A.

[0201] Figure 10d The illustrated carrying device 215 preferably has carrying claws 216a and 216b with mutually symmetrical configurations. In particular, the carrying claws 216a and 216b are mirror-symmetrically configured, especially with respect to a plane of symmetry including the output axis A. Preferably, the carrying claws 216a and 216b are mirror-symmetrically configured with respect to a plane extending at least substantially perpendicular to this plane of symmetry. Preferably, each carrying claw 216a and 216b has at least two carrying and / or encoding profiles configured corresponding to the clamping wings of the tool device (not shown in detail). Preferably, the carrying and / or encoding profiles are recesses in the outer contour of the carrying device 215, especially when viewed in a plane extending at least substantially perpendicular to the output axis A. Figure 10d The tool receiving device 213 shown includes a clamping device 217 comprising an inner surface extending at least substantially perpendicular to the clamping surface 233 of the clamping device 217. Viewed in a plane extending at least substantially perpendicular to the output axis A, this inner surface has a orientation similar to the carrying and / or encoding profile. Preferably, the carrying and / or encoding profiles of the carrying claws 216a, 216b and the inner surface of the clamping device 217 form six circumferential profiles of the tool receiving device 213 in a plane extending at least substantially perpendicular to the output axis A.

[0202] Figures 13 to 1 5 shows additional detailed views of the machine tool system, particularly the tool receiving device 213 of the handheld machine tool 211, wherein, Figures 13 to 1 5. Additional details shown in the previous section Figures 1 to 12 For clarity reasons, it is not shown, in order to achieve Figures 1 to 12 It is simple and readable. Figures 13 to 1 The publicly disclosed features can be similarly transferred to Figures 1 to 12 .

[0203] Tool device 11 includes at least one tool assembly coding element 304, 306, 312, 314, which is configured to interact with the at least one assembly coding element 300, 302, 308, 310 of tool receiving device 213 (see also...) in a state where tool device 11 is arranged on tool receiving device 213. Figure 12The at least one tool assembly coding element 304, 306, 312, 314 of the tool device 11 and the at least one assembly coding element 300, 302, 308, 310 of the tool receiving device 213 are constructed in particular corresponding manner. Preferably, the at least one assembly coding element 300, 302, 308, 310 of the tool receiving device 213 is configured to encode the arrangement, fixation, or placement of the tool device 11 on or in connection with the tool receiving device 213, particularly the support surface 261. Preferably, the at least one assembly coding element 300, 302, 308, 310 of the tool receiving device 213 is configured to encode the arrangement, fixation, or placement of the tool device 11 on or in connection with the tool receiving device 213, particularly the support surface 261, according to the key-keyhole principle.

[0204] The carrying device 215 includes at least one assembly coding element 300, 302, which is configured to cooperate with at least one tool assembly coding element 304, 306 of the tool device 11 in the state where the tool device 11 is arranged on the tool receiving device 213. The at least one assembly coding element 300, 302 of the carrying device 215 is arranged on at least one carrying claw 216a, 216b of the carrying device 215 (see...). Figure 12 ).

[0205] The at least one assembly coding element 300, 302 of the carrying device 215 is configured as a mechanical assembly coding element. The at least one assembly coding element 300, 302 of the carrying device 215 is integrally constructed with the carrying claws 216a, 216b. The at least one assembly coding element 300, 302 of the carrying device 215 is configured as a raised portion. However, it is also conceivable that the at least one assembly coding element 300, 302 of the carrying device 215 may have other configurations that are considered meaningful by a person skilled in the art, such as slots, connecting strips, etc. The at least one assembly coding element 300, 302 of the carrying device 215 preferably extends at least along a direction that extends transversely to, and at least substantially perpendicular to, the tool rotation axis a of the tool device 11. The at least one assembly coding element 300, 302 of the carrying device 215 is arranged adjacent to the inner circumferential surface 240 of the at least one carrying claw 216a, 216b. The at least one assembly coding element 300, 302 of the carrying device 215 extends from the inner circumferential surface 240 of the at least one carrying claw 216a, 216b, particularly in a direction pointing away from the tool rotation axis a, and extends at most to the circumferential surface 245 bounded by the outer circumferential circle 245c (see...). Figure 9 and 12 ).

[0206] Viewed circumferentially, the at least one assembly coding element 300, 302 of the carrying device 215 is preferably arranged between the driving edge 219a and / or the driving surface 219b and the carrying claw 216a, 216b on the side opposite to the driving edge 219a and / or the driving surface 219b. Preferably, the at least one assembly coding element 300, 302 of the carrying device 215 has a maximum extension dimension along the circumferential direction, which is smaller than the maximum circumferential spacing between the driving edge 219a and / or the driving surface 219b and the carrying claw 216a, 216b on the side opposite to the driving edge 219a and / or the driving surface 219b. Preferably, the at least one assembly coding element 300, 302 of the carrying device 215 is arranged in an angular region of less than 60° between the driving edge 219a and / or the driving surface 219b and the carrying claw 216a, 216b on the side opposite to the driving edge 219a and / or the driving surface 219b.

[0207] The at least one assembly coding element 300, 302 of the carrying device 215 can have any configuration that is meaningful to a person skilled in the art. For example, it is conceivable that the at least one assembly coding element 300, 302 of the carrying device 215, especially when viewed in the first orthogonal plane 235, has a polygonal (square, rectangle, triangle, deformed, etc.) or circular (semicircle, semicircle with a wavy outer perimeter, etc.) cross-section, as can also be exemplarily derived from FIG. 14, since the at least one tool assembly coding element 304, 306, 312, 314 of the tool device 11 is preferably constructed corresponding to the at least one assembly coding element 300, 302, 308, 310 of the tool receiving device 213. However, it is also conceivable that the at least one tool assembly coding element 304, 306, 312, 314 of the tool device 11 and the at least one assembly coding element 300, 302, 308, 310 of the tool receiving device 213 are constructed differently, especially in terms of size. For example, it can be envisioned that the at least one tool assembly coding element 304, 306, 312, 314 of the tool device 11 has a maximum extension dimension along the circumferential or radial direction, which is many times the maximum extension dimension of the at least one assembly coding element 300, 302, 308, 310 of the tool receiving device 213, etc.

[0208] Preferably, at least one assembly coding element 300, 302 is arranged on each of the carrying claws 216a, 216b of the carrying device 215 (see [link]). Figure 12However, it is also conceivable that each of the carrying claws 216a and 216b may have more than one assembly coding element 300 or 302, for example, each of the carrying claws 216a and 216b may have at least two, at least three, at least four, or more assembly coding elements 300 or 302. The assembly coding elements 300 or 302 arranged on the carrying claws 216a and 216b may have similar configurations to each other, wherein different configurations of the assembly coding elements 300 or 302 may also be conceivable.

[0209] Preferably, the assembly coding elements 300, 302 of the carrying device 215 arranged on the carrying claws 216a, 216b are arranged asymmetrically about a plane including the output axis A. However, it is also conceivable that the assembly coding elements 300, 302 of the carrying device 215 arranged on the carrying claws 216a, 216b are arranged symmetrically about a plane including the output axis A, as can be derived, particularly by way of example, from the possible corresponding arrangements of the tool assembly coding elements 304, 306, 312, 314 of FIG. 14.

[0210] The clamping device 217, and in particular at least the hook devices 217a and 217b of the clamping device 217, includes at least one mounting coding element 308 or 310 (see [link]). Figure 12 and 13 The assembly coding elements 308, 310 of the clamping device 217 are preferably arranged on the claws 218a, 218b, particularly in the clamping slots 231 of the claws 218a, 218b. Preferably, the clamping device 217 includes a plurality of assembly coding elements 308, 310, particularly at least two. However, it is also conceivable that the clamping device 217 has a different number of assembly coding elements 308, 310 arranged on the claws 217a, 217b than in 1 and 2. Preferably, the at least one assembly coding element 308, 310 of the clamping device 217 constitutes a fixed coding element, which is configured to encode the fastening of the tool device 11 on the tool receiving device 213. Preferably, the at least one assembly coding element 308, 310 of the clamping device 217 is configured to encode the fastening of the tool device 11 on the tool receiving device 217 according to a key-keyhole principle.

[0211] Preferably, the at least one assembly coding element 308, 310 of the clamping device 217 is integrally constructed with the claws 218a, 218b. However, it is also conceivable that the at least one assembly coding element 308, 310 of the clamping device 217 is constructed independently of the claws 218a, 218b and fixed to the claws 218a, 218b by means of a connection deemed meaningful by a person skilled in the art. Preferably, the at least one assembly coding element 308, 310 of the clamping device 217 is arranged on the clamping surface 233 of the clamping device 217, particularly directly adjacent to the clamping surface 233, which at least partially defines the clamping slot 231. The at least one assembly coding element 308, 310 of the clamping device 217 has a maximum extension dimension within the clamping slot 231 that is smaller than the maximum extension dimension of the clamping surface 233 of the clamping device 217. Preferably, the at least one assembly coding element 308, 310 of the clamping device 217 is configured as a raised shape. However, it is also conceivable that the at least one assembly coding element 308, 310 of the clamping device 217 may have other configurations that are considered meaningful by a person skilled in the art, such as slots, channels, connecting strips, serrated profiles, etc. The at least one assembly coding element 308, 310 of the clamping device 217 may be arranged symmetrically or asymmetrically on the claws 218a, 218b with respect to the intermediate plane, especially the plane of symmetry, as can be derived, particularly by way of example, from the possible corresponding arrangements of the tool assembly coding elements 304, 306, 312, 314 of FIG. 14. Preferably, the intermediate plane, especially the plane of symmetry, of the claws 218a, 218b extends at least substantially parallel to and / or includes the output axis A. It is also conceivable that the at least one assembly coding element 308, 310 of the clamping device 217 is arranged at intervals on the hooks 218a, 218b relative to the intermediate plane, especially the symmetrical plane, of the hooks 218a, 218b.

[0212] The attachment device 13 of the tool device 11 has at least one tool assembly coding element 304, 306, 312, 314, which is configured to cooperate with at least one assembly coding element 300, 302, 308, 310 of the tool receiving device 213 when the tool device 11 is arranged on the tool receiving device 213. The at least one tool assembly coding element 304, 306, 312, 314 is arranged on at least one clamping wing 19 of the attachment device 13 (see...). Figure 14a The at least one tool assembly coding element 304, 306, 312, 314 has a maximum extension dimension along the radial axis r that corresponds to the maximum spacing between the first boundary circle 23 and the second boundary circle 27 of the attachment device 13, as exemplarily from... Figure 14aDifferent implementation possibilities of the attachment device 13 can be derived as follows. The at least one tool assembly coding element 304, 306, 312, 314 is preferably arranged on the clamping wing 19 of the attachment device 13 in an angular region between the drive edge 40a and the coding edge 35. In particular, this angular region has a maximum extension dimension of 90° or less, preferably 60° or less, and particularly preferably 40° or less. The maximum extension dimension of the at least one tool assembly coding element 304, 306, 312, 314 along the circumferential direction is preferably smaller than the maximum spacing between the drive edge 40a and the coding edge 35 of the attachment device 13. In particular, the at least one tool assembly coding element 304, 306, 312, 314 extends circumferentially in the region between the drive edge 40a and the coding edge 35. The region between the drive edge 40a and the coding edge 35 is preferably arranged within the first boundary circle 23 and the second boundary circle 27 of the attachment device 13. Preferably, the region is composed of sub-regions of an annulus bounded by a first boundary circle 23 and a second boundary circle 27 of the attachment device 13, as exemplarily from... Figure 14a As can be seen from the different implementation possibilities in the table list, combinations of the implementation possibilities shown can also be envisioned. The attachment device 13 preferably includes a plurality of tool assembly coding elements 304, 306, 312, 314, which can be arranged symmetrically, especially with n-fold rotational symmetry or asymmetrically on the attachment device 13, especially on the clamping wing 19.

[0213] Exemplary implementation possibilities of attachment device 13 Figure 14a The table list shown—particularly regarding the implementation possibilities of tool assembly coding elements 304, 306, 312, 314—shows possible embodiments of tool assembly coding elements 304, 306, 312, 314 in terms of size, particularly length, width, etc. The second column shows possible embodiments of tool assembly coding elements 304, 306, 312, 314 in terms of shape—e.g., polygonal, circular, etc. The third column shows possible embodiments of tool assembly coding elements 304, 306, 312, 314 in terms of arrangement relative to the radial axis r or a plane including the tool rotation axis a, such as symmetrical arrangement about the radial axis r, single-sided arrangement about the radial axis r, n-fold rotational symmetry, etc. Figure 14a In the accompanying drawings, the reference numerals only indicate the possibility of implementation to achieve better readability of the table list. However, the attachment 13... Figure 14a The implementation possibilities shown, particularly in relation to the tool assembly coding elements 304, 306, 312, 314, should not be considered as limitations, as the tool assembly coding elements 304, 306, 312, 314 may have additional implementation possibilities that are of interest to a person skilled in the art.

[0214] Figures 14b to 14e Alternative configurations of the attachment device 13 are shown, particularly regarding the feasibility of implementing the clamping wing 19. Figure 14b In this configuration, the attachment device 13 preferably has a first boundary circle 23 that at least partially delimits the clamping wings 19 of the attachment device 13. This first boundary circle has a maximum diameter D1, which is greater than the maximum diameter of the circle that delimits, particularly along the radial axis r, the assembly coding elements 300, 302, 308, 310 of the tool device 11. The clamping wings 19 are preferably configured such that, when the tool device 11 is arranged on the tool receiving device 213, the clamping wings extend into the clamping slots 231 of the clamping device 217 and are secured to the tool receiving device 213, particularly by means of the clamping surfaces 233. In particular, the clamping wing 19 is constructed such that the edges of the clamping wing 19, which limit the clamping wing 19 along the radial axis r and are preferably at least partially arranged on the first boundary circle 23, are just still in contact with or spaced apart from the assembly coding elements 300, 302, 308, 310 of the tool device 11 when the tool device 11 is arranged on the tool receiving device 213. Preferably, the maximum diameter D1 of the first boundary circle 23 of the attachment device 13 is smaller than the maximum diameter D2 of the second boundary circle 27. Preferably, the maximum diameter D1 of the first boundary circle 23 is greater than or equal to the maximum diameter of the circle limiting the assembly coding elements 300, 302, 308, 310 of the tool device 11, especially greater than or equal to 24.8 mm. The clamping wing 19 can be constructed with mirror symmetry about a plane including the tool rotation axis a (see...). Figure 14b (See right figure in the image) or asymmetric construction about the plane of symmetry (see...) Figure 14b (Left image in the image).

[0215] exist Figure 14c In this configuration, the attachment device 13 preferably has at least one clamping wing 19, particularly at least four clamping wings 19, whose maximum extension along the first boundary circle 23 and / or the second boundary circle 27 is smaller than the maximum extension of the slot of the tool device 11 in the state where the tool device 11 is arranged on the tool receiving device 213, and which interacts with at least one carrying claw 216a, 216b and / or at least partially receives the carrying claw. Preferably, the maximum extension of the clamping wings 19 along the first boundary circle 23 and / or the second boundary circle 27 is smaller than the minimum spacing between the output edge 219a of the torque transmission region 219 and the assembly coding elements 300, 302, 308, 310 of the tool device 11. Figure 14c The example illustrates four implementation possibilities of the clip wing 19 having a small maximum extension dimension.

[0216] exist Figure 14dIn this configuration, the attachment device 13 preferably has at least one clamping wing 19, particularly at least four clamping wings 19, on which at least one tool assembly coding element 304, 306, 312, 314 of the tool device 11 is arranged. Figure 14d In the left figure, the tool assembly coding elements 304, 306, 312, and 314 arranged on the clamping wing 19 have a maximum radial extension dimension that is less than or equal to the maximum radial distance between the first boundary circle 23 and the second boundary circle 27.

[0217] exist Figure 14d In the middle diagram, the tool assembly coding elements 304, 306, 312, and 314 arranged on the clamping wing 19 have a maximum extension scale that extends along an angular region having values ​​in the range of 10° to 40°.

[0218] exist Figure 14d In the right figure, the tool assembly coding elements 304, 306, 312, 314 arranged on the clamping wing 19 have a maximum circumferential extension dimension of less than or equal to 17 mm and are preferably arranged in an angular region between at least two slots of the tool device 11 that work together with the carrying claws 216a, 216b and / or at least partially receive the carrying claws, the angular region having a value in the range of 10° to 40°.

[0219] exist Figure 14e In this configuration, the attachment device 13 preferably has at least one clamping wing 19, and more particularly at least four clamping wings 19, on which at least one tool assembly coding element 304, 306, 312, 314 of the tool device 11 is arranged. Figure 14e In the left figure, one or more clamping wings 19 are mirror-symmetric about a plane of symmetry including the tool rotation axis a. Tool assembly coding elements 304, 306, 312, 314 are preferably adjacent on both sides to the edges that define the clamping wings 19, said edges preferably extending at least partially along the first boundary circle 23.

[0220] exist Figure 14eIn the intermediate diagram, one or more clamping wings 19 are asymmetrically constructed about a plane of symmetry including the tool rotation axis a. Preferably, tool assembly coding elements 304, 306, 312, 314 are at least adjacent to the edge that limits the clamping wings 19 on one side of the tool assembly coding elements 304, 306, 312, 314, particularly on the side facing the drive edge 40a, which preferably extends at least partially along the first boundary circle 23. On the side of each tool assembly coding element 304, 306, 312, 314 facing the coding edge 35, the tool assembly coding elements 304, 306, 312, 314 are preferably at least adjacent to another edge that limits the clamping wings 19, which is offset relative to the first boundary circle 23 towards the second boundary circle 27.

[0221] exist Figure 14e In the right figure, one or more clamping wings 19 are asymmetrically constructed about a plane of symmetry including the tool rotation axis a. Preferably, tool assembly coding elements 304, 306, 312, 314 are at least adjacent to the edge that limits the clamping wings 19 on one side of the tool assembly coding elements 304, 306, 312, 314, particularly on the side facing away from the coding edge 35, which preferably extends at least partially along the first boundary circle 23. On the side of each tool assembly coding element 304, 306, 312, 314 facing the drive edge 40a, the tool assembly coding elements 304, 306, 312, 314 are preferably at least adjacent to another edge that limits the clamping wings 19, which is offset relative to the first boundary circle 23 towards the second boundary circle 27.

[0222] Figure 16a Figures 16b, 17a, 17b, 18a, and 18b illustrate possible embodiments of the tool apparatus 11. Figure 16a and 16b The diagram illustrates a possible embodiment of the tool assembly 11 as a crown drill bit. The tool assembly 11 includes an attachment 13 and a working area 15 adjacent to the attachment 13. The working area 15 is cylindrical, particularly cylindrical in shape. Preferably, the working area 15 has a maximum diameter that remains at least substantially constant, particularly when viewed along the tool rotation axis a. Preferably, the working area 15 has a constant maximum spacing relative to the tool rotation axis a along the tool rotation axis a. On the side of the working area 15 opposite to the attachment 13, the working area includes at least one or more segmented sections 31. These segmented sections 31 are preferably configured as diamond segmented sections. However, it is also contemplated that the segmented sections 31 may have other configurations that are considered meaningful by a person skilled in the art, such as carbide segmented sections, etc.

[0223] exist Figure 17a and 17bThe diagram shows a possible embodiment of the tool assembly 11 as a crown drill bit. Figure 17a and 17b The tool device 11 shown has at least substantially similar Figure 16a and 16b The configuration of the tool device 11 shown. (Compared to...) Figure 16a and 16b The tool device 11 shown is different. Figure 17a and 17b The illustrated tool assembly 11 has a working area 15, which, particularly when viewed along the tool's rotation axis a, has at least two different maximum diameters. Preferably, the working area 15 has a smaller maximum diameter in the region assigned to the dividing segment 31 than in the region assigned to the attachment device 13. The diameter change or variation can be constructed in a step-like or continuous manner. Preferably, the dividing segment 31 is constructed as a coating having dividing particles, particularly diamond particles, corundum particles, etc. However, it is also conceivable that the dividing segment 31 is constructed as a cemented carbide dividing segment, etc.

[0224] exist Figure 18a and 18b The diagram illustrates a possible embodiment of the tool device 11 as a can-shaped brush. The tool device 11 preferably includes an attachment device 13 and a working area 15 disposed thereon. The working area 15 has a can-shaped construction. The working area 15 preferably includes a fixing area where the bristle-like workpiece processing element of the tool device 11 is fixed. The workpiece processing element may be constructed as coated nylon bristles, coated metal bristles, etc. The workpiece processing element may be constructed with or without wrinkles. The workpiece processing element is preferably fixed to the fixing area by means of force-locking, form-locking, and / or material-locking connections.

Claims

1. A tool device for receiving in a handheld machine tool (211), the handheld machine tool enabling the tool device (11) to be rotatably operated about the output shaft of a tool receiving device (213), the tool device having at least one attachment device (13) detachably connected to the output shaft of the handheld machine tool (211), in, The attachment device (13) can be fastened to the tool receiving device (213) such that the output axis (A) of the output shaft and the tool rotation axis (a) of the tool device (11) substantially coincide, wherein the attachment device (13) has a slot (17). Its features are, The attachment device (13) has at least one clamping wing (19) that at least partially delimits the notch (17) in the radial direction of the tool rotation axis (a). The clamping wing is substantially delimited in the radial direction relative to the tool rotation axis (a) by a first boundary edge (21) located on a first boundary circle (23) about the tool rotation axis (a). The clamping wing (19) extends at least substantially along an orthogonal plane relative to the tool rotation axis (a). The clamping wing (19) is asymmetrical about each plane of symmetry that unfolds in the radial and axial directions of the tool rotation axis (a). The attachment device (13) has at least one tool assembly coding element (304, 306, 312, 314). The tool assembly coding element is configured to cooperate with at least one assembly coding element (300, 302, 308, 310) of the tool receiving device (213) in the state where the tool device (11) is arranged on the tool receiving device (213), wherein the at least one tool assembly coding element (304, 306, 312, 314) is arranged on at least one clamping wing (19) of the attachment device (13) and configured as a slot extending completely through the maximum material thickness of the clamping wing (19), wherein the at least one assembly coding element of the clamping device (217) of the tool receiving device (213) is configured to encode the radially acting fastening of the clamping device for fastening the tool device to the tool receiving device.

2. The tool device according to claim 1, characterized in that, The clamping wing (19) is constructed as a spring wing.

3. The tool apparatus according to claim 1 or 2, characterized in that, The first boundary circle (23) has at least one imaginary projected edge (22) located between two adjacent first boundary edges (21), the projected edge being located on the first boundary circle (23) and extending concentrically around the boundary circle (23) in the circumferential direction about the tool rotation axis (a), wherein the circumferential extension of the at least one projected edge (22) is smaller than the extension of the first boundary edge (21) adjacent to the projected edge (22).

4. The tool apparatus according to claim 1 or 2, characterized in that, The attachment device (13) is formed by a bearing flange (14).

5. The tool apparatus according to claim 1 or 2, characterized in that, The clamping wing (19) is essentially bounded by a second boundary edge (25) in a radial direction relative to the tool rotation axis (a), the second boundary edge being located on a second boundary circle (27) about the tool rotation axis (a).

6. The tool apparatus according to claim 4, characterized in that, The tooling device (11) has a working area (15) that is connected to and completely surrounds the bearing flange (14), the working area being designed to act on a workpiece or workpiece assembly.

7. The tool apparatus according to claim 6, characterized in that, The working area (15) is arranged on the support flange (14) such that the working area (15) protrudes relative to the support flange (14) in the axial direction of the tool rotation axis (a) in the direction oriented toward the tool receiving device (213) of the handheld machine tool (211).

8. The tool apparatus according to claim 4, characterized in that, The tool device (11) has at least one upper first bearing plane (52) and at least one lower second bearing plane (54) in the region of the bearing flange (14), wherein the bearing planes (52, 54) are arranged substantially perpendicular to the tool rotation axis (a), wherein the bearing planes (52, 54) are spaced apart from each other by a distance T, and wherein the bearing planes (52, 54) define the axial extension dimension of the bearing flange (14).

9. The tool apparatus according to claim 1 or 2, characterized in that, The at least one clamping wing (19) has a torque receiving region (40) for receiving torque in the circumferential direction about the rotation axis (a) of the tool, wherein the torque receiving region (40) is at least segmentally obtained by the axial extension dimension and / or radial extension dimension of the clamping wing (19).

10. The tool apparatus according to claim 9, characterized in that, The torque receiving area (40) is angled against the direction of rotation of the tool receiving device (213) during the operation of the handheld machine tool (211).

11. The tool apparatus according to claim 9, characterized in that, The torque receiving area (40) is angled around the tool rotation axis (a) along the circumference of the plane that unfolds relative to the axial and radial directions of the tool rotation axis (a).

12. The tool apparatus according to claim 1 or 2, characterized in that, The attachment device (13) has at least two clamping wings (40), each clamping wing having a torque receiving area (40), and the clamping wings are arranged parallel to each other and spaced apart.

13. The tool apparatus according to claim 4, characterized in that, The tool device (11) has a working area (15) connected to the bearing flange (14) for processing workpieces.

14. The tool apparatus according to claim 4, characterized in that, The bearing flange (14) limits the slot (17) in a radial direction relative to the rotation axis (a) of the tool.

15. The tool apparatus according to claim 1 or 2, characterized in that, The slot (17) is configured as a material through-hole extending through the entire material thickness of the tool (11), wherein the material through-hole is configured to completely surround the output shaft of the handheld machine tool (211).

16. The tool apparatus according to claim 1 or 2, characterized in that, The ratio of the diameter D1 of the first boundary circle (23) to the diameter D2 of the second boundary circle (27) is in the range of 50% to 95%.

17. The tool apparatus according to claim 1 or 2, characterized in that, The attachment device (13) has an even number of clip wings (19).

18. The tool apparatus according to claim 1 or 2, characterized in that, The attachment device (13) has a plurality of clamping wings (19) arranged symmetrically about the rotation axis (a) of the tool.

19. The tool apparatus according to claim 6, characterized in that, The bearing flange (14) has a safety device (63) configured such that, in the event of a break in the connection between the bearing flange (14) and the working area (15), the working area (15) is held between the bearing flange (14) and the handheld machine tool (211).

20. The tool apparatus according to claim 1 or 2, characterized in that, The at least one tool assembly coding element (304, 306, 312, 314) has a maximum extension dimension along the radial axis (r), which is at most equivalent to the maximum distance between the first boundary circle (23) and the second boundary circle (27) of the attachment device (13).

21. The tool apparatus according to claim 1 or 2, characterized in that, The at least one tool assembly coding element (304, 306, 312, 314) is arranged on the at least one clamping wing (19) of the attachment device (13) in an angular region between the drive edge (40a) and the coding edge (35) of the attachment device (13).

22. The tool apparatus according to claim 1, characterized in that, The first boundary edge lies on the smallest first boundary circle (23) about the rotation axis (a) of the tool.

23. The tool apparatus according to claim 1, characterized in that, The clamping wing (19) is not mirror-symmetric about each plane of symmetry that unfolds about the radial and axial directions of the tool's rotation axis (a).

24. The tool apparatus according to claim 3, characterized in that, The circumferential extension scale of each projected edge (22) is smaller than the extension scale of the first boundary edge (21) adjacent to the projected edge (22).

25. The tool apparatus according to claim 5, characterized in that, The second boundary edge is located on the largest second boundary circle (27) about the rotation axis (a) of the tool.

26. The tool apparatus according to claim 11, characterized in that, The torque receiving area (40) is folded at an angle of up to 50° around the tool rotation axis (a) along the circumference of the plane that unfolds in the axial and radial directions of the tool rotation axis (a).

27. The tool apparatus according to claim 13, characterized in that, The working area (15) is materially and / or shape-fitted to the bearing flange (14).

28. The tool apparatus according to claim 15, characterized in that, The material through-hole is configured to completely surround the tool receiving device (213) of the handheld machine tool (211).

29. The tool apparatus according to claim 28, characterized in that, The material through-hole is configured to completely surround the carrying device (215) and clamping device (217) of the tool receiving device (213).

30. The tool apparatus according to claim 16, characterized in that, The ratio of the diameter D1 of the first boundary circle (23) to the diameter D2 of the second boundary circle (27) is in the range of 60% to 90%.

31. The tool apparatus according to claim 1 or 2, characterized in that, The tool device has a working area (15) designed to act on a workpiece or workpiece assembly; and, attachment device (13), which is designed to receive driving force; And, a connection area (55) designed to transmit the driving force to the working area (15) for use in a handheld machine tool (211).

32. An application of the tool device according to any one of claims 1 to 31, implemented in a handheld machine tool (211), characterized in that, The tool device (11) can operate at a speed of 4000 rpm or more, or 10000 rpm or more, or 20000 rpm or more.

33. The application according to claim 32, characterized in that, This handheld tool is an angle grinder.

34. A method for manufacturing a tool apparatus (11) according to any one of claims 1 to 30, characterized in that, The tool device (11) has an attachment device (13) with a slot (17) which is manufactured by a stamping method.

35. A machine tool system having a tooling device according to any one of claims 1 to 30 and having at least one handheld machine tool (211), the handheld machine tool including at least one tool receiving device (213), characterized in that, The tool device (11) has at least one tool assembly coding element (304, 306, 312, 314) configured to cooperate with at least one assembly coding element (300, 302, 308, 310) of the tool receiving device (213) in a state where the tool device (11) is arranged on the tool receiving device (213), wherein the at least one assembly coding element of the clamping device is configured to encode a radially acting fastening of the clamping device for fastening the tool device to the tool receiving device.

Images