Tool attachment for a hand tool

Abstract

Tool attachment (1200) with an attachment housing (1210) having a first and second axial end (1201, 1202), wherein a tool holder (1240) for receiving an insert tool is arranged at the first axial end (1201) and an attachment interface (1250) is arranged at the second axial end (1202), which attachment interface has a fastening element (1215) designed as a crown disk for the rotationally secured fastening of the tool attachment (1200) to a machine interface (150) of a hand-held power tool (100), characterized in that the fastening element (1215) is arranged axially movable at the second axial end (1202) of the attachment housing (1210) and is subjected to force in a direction pointing away from the attachment housing (1210), wherein the fastening element (1215) is connected to the attachment housing via at least one fastening member designed as at least one collar screw (1322,1324) is attached to the front housing (1210) and is at least partially axially displaceable along the fastening member (1322, 1324).

Description

Prior ArtThe present invention relates to a tool attachment having an attachment housing which has a first and second axial end, wherein a tool receptacle for receiving an insert tool is arranged at the first axial end and an attachment interface is arranged at the second axial end, which attachment interface has a fastening element, in particular a crown disk, for the rotationally secured fastening of the tool attachment to a machine interface of a hand-held power tool.The prior art discloses a tool attachment of this type, which has an attachment interface for fastening to an associated machine interface of a hand-held power tool. In this case, the attachment interface is assigned an angular position setting unit for setting a predefined angular position of the tool attachment at the machine interface of the hand-held power tool. This angular position adjustment unit has a plurality of angle adjustment elements which are formed by associated, groove-like recesses and are designed for a rotationally secured arrangement at the machine interface of the hand-held power tool. Preferably, the angle adjustment elements engage in groove-like recesses of the machine interface in an arrangement on the hand-held power tool. As a result, the tool attachment can be arranged at different angles to the machine interface.A disadvantage of this prior art is that, in the case of an arrangement of the tool attachment at the machine interface of the hand-held power tool, an undesired axial play is formed between the tool attachment and the hand-held power tool.Modified Description Page 2 - Purely SummaryDE 10 2013 213 806 A1 discloses a tool attachment with an attachment housing on which a fastening interface for fastening to a hand-held power tool is arranged.DE 20 2013 102 832 U1 describes a tool comprising a tool body which contains a motor and has a working surface, an output spindle having a first end which protrudes from the working surface of the body, an internal hexagon or bit holder, passive engagement connection structures on the working surface and a tool holder body.DE 20 2013 100 891 U1 discloses an interface attachment for a hand-held machine tool.Disclosure of the InventionIt is therefore an object of the invention to provide a novel tool attachment in which an at least approximately axially play-free arrangement of the tool attachment on a hand-held power tool can be made possible.This problem is solved by a tool attachment with an attachment housing, which has a first and second axial end, wherein a tool holder for receiving an insert tool is arranged at the first axial end and an attachment interface is arranged at the second axial end, which interface has a fastening element, in particular a crown disk, for the rotationally secured fastening of the tool attachment to a machine interface of a hand-held machine tool. The fastening element is arranged axially movably at the second axial end of the attachment housing and is acted upon by force in a direction pointing away from the attachment housing.The invention thus enables the provision of a tool attachment in which an at least substantially axially play-free arrangement on a hand-held power tool can be made possible by an attachment interface arranged in an axially movable manner on the attachment housing.Modified Description Page 2a - Purely SummaryPreferably, the fastening element is fastened to the attachment housing via at least one fastening member, preferably at least one shoulder screw, and is displaceable axially along the fastening member at least in regions.Thus, the fastening element can be fastened to the attachment housing in a reliable and axially displaceable manner.The fastening element preferably has a predefined distance from the attachment housing in the state of the tool attachment not fitted relative to the hand-held power tool.Thus, a required axial mobility of the fastening element can be achieved in a simple manner.The predefined distance is preferably designed to decrease at least in sections during mounting of the tool attachment on the machine interface of the hand-held power tool.Thus, a reduction according to the invention in the axial play between the tool attachment and the hand-held power tool in the mounted state can be achieved in a simple manner.According to one embodiment, the fastening element is acted upon by force via at least one spring element in the direction pointing away from the attachment housing.The tool attachment or the fastening element can thus be arranged axially without play on a machine interface of a hand-held machine tool, since the at least one spring element applies force to the fastening element in the direction of the machine interface.Preferably, the fastening element has at least one recess on its end side facing the attachment housing for at least partially receiving the at least one spring element.The at least one spring element can thus be arranged on the fastening element in a simple and compact manner and can load the fastening element.Preferably, a locking unit is provided which is designed to lock the tool attachment at the machine interface of the hand-held power tool in a locked state and to allow the tool attachment to be removed from the machine interface in the unlocked state, wherein the locking unit has at least one projection for positioning the at least one spring element.A secure and reliable arrangement of the at least one spring element on the tool attachment can thus be made possible.The at least one projection of the locking unit is preferably arranged in the at least one recess of the fastening element.Thus, the provision of a handy and compact tool attachment can be made possible.According to one embodiment, the at least one spring element applies force to the fastening element in such a way that the tool attachment can be fastened to the machine interface of the hand-held power tool at least approximately without play in the axial direction.This makes it possible to ensure a reliable and reliable arrangement of the tool attachment on the hand-held power tool.The fastening unit is preferably designed to derive axial forces acting on the tool attachment during operation of the tool attachment fastened to the machine interface of the hand-held power tool.Damage or destruction of the tool attachment due to axial forces acting on the tool attachment during operation can thus be at least largely prevented.Preferably, an axial contact surface is provided for bearing against a support surface provided in the region of the machine interface of the hand-held power tool, wherein, when the tool attachment is fastened to the machine interface of the hand-held power tool, a gap is formed between the axial contact surface and the support surface for dissipating the acting axial forces.Thus, axial forces acting on the tool attachment can be easily dissipated via the fastening element without these being able to act on a drive shaft assigned to the tool attachment.The problem mentioned at the beginning is also solved by a tool system with a hand-held power tool, which has a machine interface, and with a tool attachment, which has an attachment housing with a first and second axial end, wherein a tool receptacle for receiving an insert tool is arranged at the first axial end and an attachment interface is arranged at the second axial end, which attachment interface has a fastening element, in particular a crown disk, for the rotationally secured fastening of the tool attachment to the machine interface of the hand-held power tool. The fastening element is arranged axially movably at the second axial end of the attachment housing and is acted upon by force in a direction pointing away from the attachment housing.Brief Description of the DrawingsThe invention is explained in more detail in the following description with reference to exemplary embodiments shown in the drawings. The following are shown: FIG. 1 shows a perspective view of a tool system with a hand-held power tool, which has a tool holder with an angular position setting device according to a first embodiment, and with a first and second tool attachment, FIG. 2 shows a perspective view of the tool system with the hand-held power tool and the first tool attachment from FIG. 1, FIG. 3 ashows a longitudinal section of the first tool attachment of FIGS. 1 and 2 in a locked state, FIG. 3 b shows a longitudinal section of the first tool attachment from FIGS. 1 to 3 a in an unlocked state, FIG. 4 shows a perspective view of an output shaft assigned to the hand-held power tool of FIGS. 1 and 2, FIG. 5 shows a perspective view of a drive shaft associated with the first tool attachment of FIGS. 1 to 3 bin accordance with a first embodiment, FIG. 6 shows a perspective view of a torque transmission element assigned to the first tool attachment of FIGS. 1 to 3 b, FIG. 7 shows a perspective view of a closure element assigned to the first tool attachment of FIGS. 1 to 3 b, FIG. 8 shows a perspective view of an actuating element associated with the first tool attachment of FIGS. 1 to 3 bin accordance with a first embodiment, FIG. 9 shows a longitudinal section of the first tool attachment of FIGS. 1 and 2 formed according to an alternative embodiment in a locked state, FIG. 10 ashows a perspective view of the hand-held power tool of FIGS. 1 and 2 with a triggering element for a transverse force display unit according to an embodiment, FIG. 10 b shows a perspective view of the first tool attachment from FIGS. 1 to 3 b, with a transverse force display unit and a display element associated therewith, FIG. 11 a shows a side view of the tool attachment from FIG. 10 b, which is arranged on a tool holder of the hand-held power tool from FIG. 10 a, FIG. 11 bshows a longitudinal section of the arrangement of FIG. 11 a, FIG. 12 shows a perspective view of a tool system with the hand-held power tool and the second tool attachment from FIG. 1, FIG. 13 shows a perspective view of the second tool attachment of FIGS. 1 and 12 with an angle adjusting member according to a first embodiment, FIG. 14 ashows a longitudinal section of the second tool attachment of FIGS. 1 and 12 arranged on a tool holder of the hand-held power tool of FIG. 12 with a drive shaft according to a first embodiment, FIG. 14 bshows the arrangement of FIG. 14 awith a drive shaft according to a second embodiment, FIG. 15 shows a perspective view of a locking unit associated with the second tool attachment of FIGS. 1 and 12 to 14 b, FIG. 16 ashows a schematic view of a tool holder associated with the second tool attachment of FIGS. 14 aand 14 bin accordance with a first embodiment, FIG. 16 bshows a schematic view of a tool holder associated with the second tool attachment of FIGS. 14 aand 14 bin accordance with a second embodiment, FIG. 16 cshows a schematic view of a tool holder associated with the second tool attachment of FIGS. 14 aand 14 bin accordance with a third embodiment, FIG. 16 dis a schematic view of a tool holder associated with the second tool attachment of FIGS. 14 aand 14 bin accordance with a fourth embodiment, FIG. 17 ashows a perspective view of the second tool attachment of FIGS. 1 and 12 with an angle adjusting member according to a second embodiment and the locking unit of FIG. 15 in the unmounted state, FIG. 17 b shows a perspective view of the second tool attachment of FIGS. 1 and 12 with the angle adjustment member according to a second embodiment without the locking unit of FIG. 15 in the unmounted state, FIG. 18 shows a longitudinal section of the second tool attachment with the angle adjusting member of FIGS. 17 aand 17 band the locking unit of FIG. 15 in the non-assembled state, FIG. 19 ashows a first longitudinal section of the second tool attachment with the angle adjusting member of FIGS. 17 aand 17 band the locking unit of FIG. 15 in the assembled state, FIG. 19 bshows a second longitudinal section of the second tool attachment with the angle adjustment member of FIGS. 17 aand 17 band the locking unit of FIG. 15 in the assembled state, FIG. 20 a shows a perspective view of the second tool attachment with the angle adjustment member of FIGS. 17 ato 19 band the locking unit of FIG. 15 in the assembled state, FIG. 20 bshows a perspective view of the second tool attachment with the angle adjustment member of FIGS. 17 ato 19 bwithout the locking unit of FIG. 15 in the assembled state, FIG. 21 shows a perspective view of the second tool attachment from FIGS. 17 ato 19 bwith an angular position display unit according to one embodiment, FIG. 22 shows a tool system with the hand-held power tool of FIG. 1, which has an angle adjusting element according to a second embodiment, and with the second tool attachment of FIG. 1 with the angle adjusting member according to a third embodiment, FIG. 23 a shows a schematic view of a first angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 23 bshows a schematic view of a second angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22, FIG. 23 cshows a schematic view of a third angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 23 dis a schematic view of a fourth angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 23 e is a schematic view of a fifth angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 23 f shows a schematic view of a sixth angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 23 g shows a schematic view of a seventh angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 23 h shows a schematic view of an eighth angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 23 i shows a schematic view of a ninth angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 23 j shows a schematic view of a tenth angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 23 k is a schematic view of an eleventh angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 23 lis a schematic view of a twelfth angular position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 24 a shows a schematic view of a first colliding position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 24 b shows a schematic view of a second colliding position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22 , FIG. 24 cshows a schematic view of a third colliding position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22, and FIG. 24 dis a schematic view of a fourth collision position of the tool attachment of FIG. 22 on the hand-held power tool of FIG. 22.DESCRIPTION OF THE EMBODIMENTSFIG. 1 shows a hand-held power tool 100 having a tool holder 140, which has a housing 110 with a handle 126. According to one specific embodiment, hand-held power tool 100 is mechanically and electrically connectable to a battery pack 130 for grid-independent power supply.The hand-held power tool 100 is designed, for example, as a rotary battery power wrench. However, it is pointed out that the present invention is not limited to rotary impact battery power tools, but rather can be used in different hand-held power tools which have a tool holder corresponding to the tool holder 140, regardless of whether the hand-held power tool 100 can be operated electrically, i.e. independently of the grid with the battery pack 130 or in a grid-dependent manner, and / or non-electrically.Preferably, an electric drive motor supplied with current from the battery pack 130, a transmission preferably provided with a separate transmission housing 119, and an optional striking mechanism, e.g. a rotary or rotary striking mechanism, are arranged in the housing 110. The drive motor can be actuated, i.e. switched on and off, for example via a manual switch 117 and can preferably be electronically controlled or regulated in such a way that both a reversing operation and specifications with respect to a desired rotational speed can be realized. In addition, a rotational direction switch 116 is arranged in the region of the hand switch 117, by means of which a rotational direction of the drive motor or of an output shaft 124 assigned to the drive motor can be adjusted. Furthermore, an optional work field illumination 118 is arranged on the housing 110 in the region of the tool holder 140.The tool holder 140 is formed on the output shaft 124, which illustratively has a holder body 147 with an inner polygonal holder 148 and an outer periphery 149. The socket 148 is provided for receiving insert tools with socket couplings.The tool holder 140 is designed, for example, in the manner of a bit holder, i.e. for receiving an insert tool designed in the manner of a screwdriver bit, which insert tool is inserted into the polygonal socket 148 in the direction of the hand-held power tool 100, as indicated by an arrow 198. Such a screwdriver bit, which is illustratively of the so-called HEX type, is sufficiently known from the prior art, so that a detailed description is omitted here for the sake of brevity of the description. However, it is pointed out that the present invention is not restricted to the use of HEX screwdriver bits, but further insert tools can also be used depending on a respectively selected configuration of the tool holder 140, e.g. HEX drills or so-called SDS quick insert tools. Moreover, it is pointed out that the structure and the mode of operation of a suitable bit holder are sufficiently known to the person skilled in the art, so that a detailed description of the bit holder 140 can be dispensed with here for the sake of brevity of the description.According to one embodiment, the hand-held power tool 100 is assigned a fastening interface 150, which is illustratively arranged in the region of the bit holder 140. Since this fastening interface 150 is assigned to the hand-held power tool 100, it is also referred to below as the "machine interface 150".The machine interface 150 serves for fastening an exchangeable tool attachment, wherein two exchangeable tool attachments 200, 1200 are shown merely by way of example, of which a first chuck attachment 200 is designed in the manner of a chuck attachment and a second tool attachment 1200 is designed in the manner of an angle attachment. Illustratively, the machine interface 150 has the outer periphery 149 of the output shaft 124 and a preferably at least sectionally annular fastening device 158 with an outer periphery 159 and an inner periphery 157 which is fastened to the transmission housing 119 or the housing 110 in a rotationally secured manner on an end face 112 of the housing 110. This fastening device 158 surrounds the bit holder 140 at least in sections, for example, with a predetermined radial spacing.On the outer periphery 159 of the fastening device 158, a plurality of groove-like receptacles 152, 154 for receiving at least one and preferably a plurality of angle adjustment elements ( 1351-1358 in FIG. 13 ) is illustratively formed, for which reason the fastening device 158 is also referred to below as "angle adjustment element 158", in the context of the present invention. The groove-like receptacles 152, 154 are exemplarily oriented in the longitudinal direction of the machine interface 150, i.e. in the direction of an arrow 199. In this case, the groove-like receptacles 152, 154 are preferably formed by projections which are aligned axially in the direction of the arrow 199 and of which only one is provided with the reference sign 153 for the sake of clarity and clarity of the drawing.The fastening device or the angle adjustment element 158 is preferably arranged on the end side 112 of the housing 110 via at least one and illustratively three fastening elements 162, 164, 166. The fastening elements 162, 164, 166 are preferably designed in the manner of rivets or screws.In addition, the angle adjustment element 158 has an angle position adjustment device 160 according to a first embodiment for adjusting a predefined angle position of the angle attachment 1200 during its mounting on the hand-held power tool 100. In this case, an attachment interface 1250 of the angle attachment 1200 is preferably fastened to the machine interface 150 in a rotationally secured manner, as described in detail below.The angle attachment 1200 preferably has an attachment housing 1210 with a first and second axial end 1201, 1202. A tool receptacle 1240 for receiving an insert tool is preferably arranged at the first axial end 1201, and the attachment interface 1250 is preferably arranged at the second axial end 1202. The attachment interface 1250 is preferably designed for rotationally secured fastening to the machine interface 150 of the hand-held power tool 100 and has a fastening element 1215. Furthermore, an angular position setting unit 1360 for setting a predefined angular position of the angular attachment 1200 at the machine interface 150 of the hand-held power tool 100 is assigned to the attachment interface 1250.The angular position adjustment unit 1360 preferably has the fastening element 1215, which is preferably designed in the manner of a disk-shaped angle adjustment member and is also referred to below as "angle adjustment member 1215". Analogously to the angle adjustment element 158, the angle adjustment member 1215 according to a first embodiment has a multiplicity of groove-like receptacles 1252, 1254, which are preferably formed in the manner of recesses, wherein the fastening element 1215 is preferably formed in the manner of a crown disk and is described in more detail in FIG. 13.Furthermore, the attachment interface 1250 has a locking unit 1220 which is designed to lock the angle attachment 1200 on the machine interface 150 of the hand-held machine tool 100 in a locked state and to enable the angle attachment 1200 to be removed from the machine interface 150 in the unlocked state. Preferably, an actuating member 1222, which is designed as an actuating sleeve and is also referred to below as "actuating sleeve 1222", is assigned to the locking unit 1220. The actuating sleeve 1222 is designed to transfer the locking unit 1220 from the locked state to the unlocked state during an actuation.As described above, the angle attachment 1200 is interchangeable with the chuck attachment 200. This has, illustratively, a first and a second axial end 201, 202 and a rotational axis 205, and is provided at its first axial end 201 with a tool receiving section 210 for receiving an insert tool and has at its second axial end 202 a locking section 215 for locking on the machine interface 150 of the hand-held power tool 100. The tool receiving section 210 is preferably designed in the manner of a clamping chuck with a plurality of clamping jaws 212, 214. For convenience and brevity of description, the tool receiving portion 210 will be referred to as a "chuck portion 210" hereinafter. Preferably, analogous to the locking unit 1220 of the angle attachment 1200, the locking section 215 is assigned a locking unit 220 with an actuating member 222 embodied as an actuating sleeve, which is also referred to below as "actuating sleeve 222". The actuating sleeve 222 locks the chuck attachment 200 for operation on the hand-held power tool 100 in a locked state and enables the chuck attachment 200 to be removed from the hand-held power tool 100 in the unlocked state.The hand-held power tool 100 preferably forms a tool system 180 with the chuck attachment 200 and / or the angle attachment 1200. This tool system 180 illustratively has only the two tool attachments 200, 1200, which are preferably interchangeable with one another, but can additionally also have further interchangeable tool attachments, e.g. an eccentric attachment, etc.FIG. 2 shows the tool system 180 with the hand-held power tool 100 and the chuck attachment 200 from FIG. 1, wherein the chuck attachment 200 is fastened by way of example with its locking section 215 to the machine interface 150 of the hand-held power tool 100. Preferably, at least the chuck attachment 200 has a transverse force display unit 240 which displays a transverse force acting on the chuck attachment 200 during operation of the chuck attachment 200 locked to the machine interface 150 of the hand-held power tool 100. However, it is to be noted that the angle attachment 1200 of FIG. 1, or any other tool attachment, may also be provided with the lateral force display unit 240.The transverse force display unit 240 preferably has a triggering element ( 1010 in FIG. 10 a) and a display element 230. The triggering element ( 1010 in FIG. 10 a) illustratively has an outer periphery 232 and is preferably designed to trigger an indication of an acting transverse force by the indicating element 230 and is described in more detail in FIG. 10 a. The display element 230 is preferably arranged in the region of the second axial end 202 of the tool attachment 200 or in the region of the locking section 215 and is particularly preferably formed integrally with the actuating sleeve 222 of the locking section 215.FIG. 3 ashows the chuck attachment 200 of FIGS. 1 and 2 with the locking section 215 and the chuck section 210 in the mounted state on the output shaft 124 or the tool holder 140 of the hand-held power tool 100 of FIGS. 1 and 2, respectively. The chuck section 210 has, by way of example, a supporting body 306 on which the plurality of clamping jaws 212, 214 is mounted, which can be actuated via a clamping body 307 provided with a clamping sleeve 305 for clamping an associated insert tool, e.g. a round drill. The support body 306 is preferably connected in a rotationally secured manner to a drive shaft 334 assigned to the chuck attachment 200, so that the support body 306 rotates with the drive shaft 334 during a rotational movement of the latter.The tool holder 140 illustratively has, at its axial end facing the tool housing 110, a collar 344 formed on an outer circumference. Preferably, the collar 344 forms, on its side facing the chuck attachment 200, a supporting surface 348 for bearing an axial bearing surface 366 assigned to the chuck attachment 200 or the drive shaft 334 of the chuck attachment 200, preferably arranged at its second axial end 202. Furthermore, the tool receptacle 140 preferably has, in the direction of its free end, a first fitting surface 354, at least in sections, which preferably tapers into a receiving region 356. This receiving region 356 is configured to receive at least one locking element 322 assigned to the chuck attachment 200 in the assembled state and is separated from a second contact surface 352 by a second collar 346. Preferably, the second receiving surface 352 forms a second mating surface 373 at least in sections. The collars 344, 346 of the tool holder 140 are preferably arranged at least in sections along the outer circumference of the tool holder 140, but preferably in the manner of circumferential collars. Furthermore, a plurality of collars 344 and 346 formed in sections can also be formed on the outer periphery of the tool holder 140. Furthermore, a magnetic element 314 and a holding element 316 are preferably formed in the inner receptacle 148 for the stable arrangement of a torque transmission element 318.According to an embodiment, the drive shaft 334 of the chuck attachment 200 has first and second axial ends 301, 302 and is provided with an internal receptacle 371 at the second axial end 302. This inner receptacle 371 preferably tapers in the direction of the first axial end 301, preferably in stages, into a first, second and third region 362, 375, 377. For arrangement on the tool holder 140 of the hand-held power tool 100, a first mating surface 364 is preferably formed in the region of the second axial end 302 of the inner holder 371, at least in sections, and a second mating surface 372 is preferably formed in the region of the first region 362, for forming a predefined rotational accuracy. The mating surfaces 364, 372 are designed in the manner of cylindrical surfaces and preferably have a high production accuracy, wherein the two mating surfaces 364, 372 preferably have different diameters and are particularly preferably arranged at a distance from one another. This allows easy mounting on the output shaft 124.The torque transmission element 318 is preferably designed in the manner of a polygonal shaft, which preferably has three partial regions 381, 382, 383. The first partial region 381 preferably has a polygonal profile and is designed for positive arrangement in the inner receptacle 148 of the tool receptacle 140 of the hand-held power tool 100. In addition, the second sub-region 382 is formed in the manner of a cylindrical annular collar and has a larger outer diameter than the first and / or third sub-region 381, 383. Preferably, the second partial region 382 is arranged at least in sections in the second region 375 of the inner receptacle 371 of the drive shaft 334 of the tool attachment 200 and forms a force-fit connection there with the drive shaft 334 for axial fixing. The third sub-region 383 preferably has at least one smaller outer diameter than the second sub-region 382, wherein, however, the first and third sub-regions 381, 383 can have an equally large outer diameter. Furthermore, the third partial region 383 is formed with a polygonal profile and serves for transmitting torque to the drive shaft 334 of the chuck attachment 200. The polygonal profile of the first and third partial region 381, 383 is preferably designed as a hexagonal profile, but can also have more or fewer edges and be designed, for example, as a quadrilateral or octagon profile.Furthermore, the locking section 215 has a locking mechanism, which can preferably be actuated without tools, preferably having at least one locking element 322. The at least one locking element 322 is preferably designed in the manner of a ball, which is referred to below as "locking ball 322". The locking ball 322 is preferably arranged in a recess 339 of the drive shaft 334 of the chuck attachment 200, which recess is illustratively formed in the region of the inner receptacle 371. Here, the locking ball 322 is designed for locking on the output shaft 124 of the hand-held power tool 100 and, illustratively in FIG. 3 a, locks in the locked state on the output shaft 124. In this case, the locking ball 322 arranged in the recess 339 blocks the output shaft 124 at its second collar 346, wherein said output shaft is preferably acted upon by a spring element 328 in the direction of the second axial end 202 of the chuck attachment 200.The spring element 328 is preferably arranged in the region of the second contact surface 352, wherein the spring element 328 rests at one axial end on an end of the inner receptacle 371 facing the first region 362 and rests at its other axial end on a support ring 327. The support ring 327 abuts the second collar 346 of the output shaft 124 in the locked state shown in FIG. 3 aand abuts the locking ball 322 in the unlocked state.In the radial direction of the chuck attachment 200, the locking ball 322 is held in a locking position and / or in an unlocking position by a closure element 336. For this purpose, the closure element 336 provided with a sleeve-shaped base body has a first and second region 387, 386 on its inner periphery, wherein the first region 387 preferably has a smaller inner diameter than the second region 386. Preferably, the locking ball 322 is arranged in the first region 387 in its locking position and in the second region 386 in its unlocking position. Furthermore, the closure element 336 has a collar 385 on its outer periphery at least in sections. Illustratively, the collar 385 is arranged in the region of the second region 386 and bears against an axial end of the actuating sleeve 222.It is pointed out that the configuration of the locking section 215 with a locking mechanism that can be actuated without tools is merely exemplary in nature and is not to be seen as a restriction of the present invention and the locking section 215 can also be configured in any other desired manner, for example with a bayonet connection or a locking mechanism with tools. Furthermore, it is pointed out that the configuration of the locking element 322 as a locking ball is merely exemplary in nature and is not to be seen as a limitation of the invention. Rather, the locking element 322 can also be designed, for example, in the manner of a cylinder or cuboid. Moreover, the locking portion 215 may also include two or more locking members.The actuating sleeve 222 preferably has a ring-shaped or at least partially cup-shaped base body with an end face section 392. This is illustratively arranged on a securing element 332 assigned to the drive shaft 334, which securing element is positioned in a recess 331 formed in the region of the second axial end 302 of the drive shaft 334 on its outer periphery. In this case, the actuating sleeve 222 has, on its end face section 392, an axial inner collar 393 which is offset in the direction of the first axial end 301 and which preferably forms a recess 390 for arrangement on an outer periphery 367 of the drive shaft 334. In addition, the actuating sleeve 222 is preferably provided on its outer periphery with an operating region 394 and a pressing element 396. The piercing element 396 is preferably arranged at an end of the actuating sleeve 222 facing the first axial end 201 of the chuck attachment 200 and, in the unlocked state, abuts a piercing member 308 assigned to the clamping sleeve 305 and formed at least in sections on an outer periphery 309 of the clamping sleeve 305. Furthermore, the actuating sleeve 222 has an inner periphery 398 which is designed such that the actuating sleeve 222 engages around the clamping sleeve 305 at least in sections.Illustratively, the actuating sleeve 222 and the closure element 336 are each acted upon via a spring element 324, 326 in the direction of the second axial end 202 of the chuck attachment 200. In this case, the spring elements 324, 326 abut at their end facing the first axial end 201 on a supporting element 329 and at their end facing the second axial end 202 on the end face section 392 of the actuating sleeve 222 or the collar 385. The support element 329 is preferably arranged in a recess 389 of the clamping sleeve 305 and abuts an outer collar 335 assigned to the drive shaft 334.FIG. 3 bshows the chuck attachment 200 with the locking portion 215 and the chuck portion 210 from FIG. 3 ain the unlocked state of the locking portion 215. In this case, the actuating sleeve 222 is acted upon in the direction of the first axial end 201 of the chuck attachment 200, wherein the abutting element 396 of the actuating sleeve 222 abuts on the abutting member 308 of the clamping sleeve 305. As a result, the closure element 336 is displaced from its locking position into its unlocking position, wherein the locking ball 322 can be displaced radially outwards and thus releases the output shaft 124 of the hand-held power tool 100. As a result, the chuck attachment 200 can be removed from the hand-held power tool 100 in the direction of its first axial end 201. If the loading on the locking section 215 is omitted, then the locking section automatically moves back into the locked state of FIG. 3 a by the spring force of the spring elements 324, 326.FIG. 4 shows the output shaft 124 of the hand-held power tool 100 from FIG. 3 with its tool holder 140. The outer periphery 149 illustratively has the first and second mating surfaces 352, 373 and the supporting surface 348.FIG. 5 shows the drive shaft 334 of the tool attachment 200 of FIG. 3 and illustrates the first and second mating surfaces 364, 372 and the axial bearing surface 366. Furthermore, FIG. 5 illustrates the recess 339 of the drive shaft 334 for receiving the locking ball 322 from FIG. 3.FIG. 6 shows the torque transmission element 318 of FIG. 3 and illustrates its first, second and third partial regions 381, 382, 383.FIG. 7 shows the closure element 336 from FIG. 3 with its first and second regions 387, 386 for arranging the locking ball 322 in the locking and / or unlocking state. In addition, FIG. 7 illustrates the collar 385 for spring-loaded arrangement on the actuating sleeve 222 from FIG. 3.FIG. 8 shows the actuating sleeve 222 of FIG. 3, which is illustratively at least partially cup-shaped, with the locking element 396, which, as described above, is in contact with the locking member 308 of the clamping sleeve 305 of FIG. 3 in the unlocked state. In addition, FIG. 8 illustrates the inner collar 393 of the end face section 392, which inner collar is offset in the direction of the first axial end 301.FIG. 9 shows the chuck attachment 200 with the drive shaft 124 from FIG. 1, which according to a further embodiment is formed in two parts. Here, the supporting body 306 of the chuck section 210 is illustratively connected to the drive shaft 334 via a screw connection 914. However, it is pointed out that the supporting body 306 can also be connected to the drive shaft 334 via any other desired connection, for example a clamping and / or press connection.FIG. 10 ashows the hand-held power tool 100 with the machine interface 150 of FIGS. 1 and 2 and the angular position adjusting device 160 provided with the projections 153 according to the first embodiment. The machine interface 150 or the angular position setting device 160 preferably has a triggering element 1010 of the transverse force display unit 240 of FIG. 2.The triggering element 1010 is preferably designed to trigger an indication by the indicating element 230 of a transverse force acting on the chuck attachment 200 during operation. The triggering element 1010 can preferably be connected at least indirectly to the machine interface 150 or is formed on the machine interface 150, for example in one piece or integrally formed thereon. In this case, the triggering element 1010 is preferably designed to be secured against rotation on the machine interface 150 and has at least one brake member 1012, which is preferably designed in the manner of an axial projection, i.e. a projection pointing in the direction of the tool holder 140 or in the direction of the arrow 199 of FIG. 1. Moreover, the brake member 1012 is preferably formed in an arc shape.Illustratively, a plurality of brake members 1012, 1014 are provided, wherein the brake members 1012, 1014 are preferably formed in the region of the groove-like receptacles 152, 154 of the machine interface 150. The brake members 1012, 1014 have an outer circumference 1016 which is preferably smaller than the outer circumference 159 of the machine interface 150.FIG. 10 bshows the chuck attachment 200 with the actuating sleeve 222 from FIG. 1 and the display element 230 from FIG. 2 ; according to one embodiment, the display element 230 has a braking member 1020, wherein the braking member 1020 engages around the braking members 1012, 1014 of the chuck attachment 200 locked at the machine interface 150 of the hand-held power tool 100 from FIG. 10 a, at least in sections. The display element 230 is preferably arranged on the end face section 392 of the chuck attachment 200, but could also be arranged at any other location of the chuck attachment 200, e.g. on the outer periphery.The brake members 1012, 1014 are preferably designed to at least brake the brake member 1020 in response to a transverse force acting on the chuck attachment 200 during operation. In this case, the release element 1010 is preferably designed to be secured against rotation and the display element 230 is designed to be rotatable at least in sections, wherein the end face section 392 of the display element 230 is arranged rotatably on the chuck attachment 200 and rotates about an associated axis of rotation 205 during operation of the chuck attachment 200 locked to the machine interface 150 of the hand-held power tool 100. At least the end face section 392 can be braked by the rotationally secured release element 1010 to indicate the acting transverse force.According to one embodiment, the braking member 1020 is formed in the manner of an annular groove, wherein the braking members 1012, 1014 are formed, as described above, in the manner of an arcuate protrusion which, during normal operation of the hand-held power tool 100, are preferably arranged at least approximately without contact with the chuck attachment 200 in the braking member 1020. In the case of a transverse force acting on the chuck attachment 200 during operation, the brake members 1012, 1014 tilt in the braking member 1020 and are at least braked by the latter on account of the friction which is produced by the tilting.It is pointed out that the arrangement of the braking member 1020 on the chuck attachment 200 and of the braking members 1012, 1014 on the hand-held power tool 100 is merely exemplary in nature and should not be considered as a limitation of the invention. Rather, the braking member 1020 can also be arranged on the hand-held power tool 100 and the braking members 1012, 1014 on the chuck attachment 200. Moreover, the braking member 1020 and the braking members 1012, 1014 may also both be formed on the chuck attachment 200. In this case, the actuating sleeve 222 can be formed on the chuck attachment 200 in a rotatable or rotationally fixed or rotationally secured manner.Furthermore, a marking 1030 is arranged by way of example on the display element 230 or its outer periphery 232 in order to clarify a braking process. This marking 1030 is preferably designed in the manner of lines and / or dots, which are preferably arranged uniformly along the outer periphery 232 of the display element 230 and serves for visually displaying a transverse force acting on the chuck attachment 200 during operation. However, it is pointed out that the marking 1030 is not absolutely necessary and can also be replaced, for example, by texturing or other external characteristics of the outer periphery 232, as long as a clear visual difference between the rotating and the braked display element 230 is recognizable.FIG. 11 ashows the chuck attachment 200 of FIG. 10 blocked on the hand-held power tool 100 of FIG. 10 awith the display element 230. FIG. 11 a illustrates the arrangement of the marking 1030 on the display element 230 or its one-piece construction with the actuating sleeve 222.FIG. 11 bshows the chuck attachment 200 of FIG. 11 alocked on the hand-held power tool 100 of FIG. 10 a. FIG. 11 b illustrates the arrangement of the brake members 1012, 1014 in the brake member 1020 that is preferably at least approximately free of contact during normal operation, i.e. without the applied transverse force.FIG. 12 shows the tool system 180 with the hand-held power tool 100 from FIGS. 1 and 2 and the angle attachment 1200 from FIG. 1, which is illustratively locked with its attachment interface 1250 to the machine interface 150 of the hand-held power tool 100. According to one embodiment, the fastening element 1215 of the attachment interface 1250 is arranged axially movably at the second axial end 1202 of the attachment housing 1210 and is acted upon by force in a direction pointing away from the attachment housing 1210. As a result, the angle attachment 1200 is fastened at least approximately without play to the machine interface 150 of the hand-held power tool 100 in the axial direction.For this purpose, the fastening element 1215 is at a predefined distance (h in FIG. 17 a ) from the attachment housing 1210 in the non-assembled state of the angle attachment 1200 relative to the hand-held power tool 100. The predefined distance (h in FIG. 17 a) is preferably designed to decrease at least in sections during mounting of the angle attachment 1200 on the machine interface 150.FIG. 13 shows the angle attachment 1200 of FIGS. 1 and 12 provided with the tool holder 1240, having the attachment interface 1250 or the angle position setting unit 1360 and the angle setting member 1215 according to a first embodiment. In this case, the angle adjustment member 1215 preferably has an outer circumference 1362 and an inner circumference 1364 and surrounds a drive shaft 1334 which, analogously to the chuck attachment 200 described above, drives the tool holder 1240, for example at least in sections at a predefined radial spacing. Illustratively, the angle adjustment member 1215 has the plurality of groove-like receptacles 1252, 1254 which form or are formed by a plurality 1350 of angle adjustment elements 1351, 1352, 1353, 1354, 1355, 1356, 1357, and 1358. The angle adjustment elements 1351-1358 are preferably arranged distributed in the region of the outer periphery 1362, and preferably in the circumferential direction of the angle adjustment member 1215, in particular are uniformly spaced apart from one another. Furthermore, the angle adjustment elements 1351-1358 are oriented in the axial direction of the angle attachment 1200, i.e. in the direction of the second axial end 1202 of the angle attachment 1200 or away therefrom.According to one embodiment, the angle adjustment member 1215 is fastened to the angle attachment 1200 via a screw connection with at least one, illustratively four fastening members 1322, 1323, 1324, 1325, preferably designed as shoulder screws. The fastening members 1322-1325 are preferably distributed uniformly along the outer periphery 1362 of the angle adjustment member 1215 and are particularly preferably each arranged in the region of a groove-like receptacle 1252, 1254. Illustratively, a fastening member 1322-1325 is arranged in each second groove-like receptacle 1252, 1254 in the circumferential direction of the angle adjustment member 1215. In this case, the angle attachment 1200 is at least regionally axially displaceable along the fastening members 1322, 1324. However, it is pointed out that the arrangement of the angle adjusting member 1215 by means of a screw connection is merely exemplary and this can also be arranged on the angle adjusting member via any other connection, for example a welded connection, or can be formed integrally with the angle attachment 1200.In addition, the tool holder 1240 or an output shaft 1333 assigned to the angle attachment 1200 is preferably designed analogously to the output shaft 124 or the tool holder 140 with an inner holder 1378 for the preferred tool-free reception of an insert tool, which has an outer periphery 1379. In this case, the outer periphery 1379, analogously to the outer periphery 149 of the tool holder 140 of the hand-held power tool 100, preferably has a first and second mating surface 1372, 1377, a supporting surface 1375, which is assigned to the second mating surface 1377, a receiving region 1376 for the exemplary arrangement of a locking ball, and a collar 1374, which separates the receiving region 1376 from the first mating surface 1372. It is pointed out that the tool holder 1240 shown in FIG. 13 is merely exemplary in nature and can also be formed according to any other tool holder, for example in the manner of a chuck.FIG. 14 ashows the angle attachment 1200 arranged at the fastening interface 150 of the hand-held power tool 100 of FIG. 12, wherein the hand-held power tool 100 is shown only in sections. In this case, the groove-like receptacles 152, 154 of the fastening device or of the angle adjustment element 158 of the hand-held power tool 100 receive the angle adjustment elements 1351-1358 of the angle attachment 1200.In addition, FIG. 14 aillustrates the output shaft 1333 or the tool holder 1240 with its inner holder 1378; the inner holder 1378, preferably analogously to the output shaft 124 of the hand-held power tool 100, has a magnetic element 1499 and a holding element 1498 for receiving and releasably fixing an insert tool. In addition, the output shaft 1333 is mounted on its attachment housing 1210 via at least one, illustratively a first and a second bearing element 1445, 1446 in the region of the first axial end 1201 of the angle attachment 1200. Furthermore, a transmission 1450 is preferably arranged in the attachment housing 1210, via which a rotational movement of the drive shaft 1334 can be transmitted to the output shaft 1333. The transmission 1450 is preferably designed in the manner of an angle transmission with a bevel gear 1451 assigned to the drive shaft 1334, and a ring gear 1452 assigned to the output shaft 1333. The drive shaft 1334 serves here for driving the output shaft 1333, which is arranged at a predetermined angle, illustratively 90°, thereto and is likewise mounted rotatably in the attachment housing 1210 and can be designed, for example, for receiving an insert tool designed as a screwdriver bit.According to one embodiment, the drive shaft 1334 is designed analogously to the drive shaft 334 of the tool attachment 200 of FIG. 3 aand preferably has, on its end facing the bevel gear 1451, on its outer periphery, preferably a first, second and third receiving region 1433, 1434, 1435. In this case, the drive shaft 1334 is mounted rotatably in the first and second region 1433, 1434 by way of a bearing element 1437, 1436 in the attachment housing 1210, in each instance, wherein the first region 1433 illustratively has a smaller outer diameter than the second region 1434. In the third region 1435, the bevel gear 1451 is illustratively arranged.It is pointed out that the design of the end of the drive shaft 1334, which end faces the bevel gear 1451, is merely exemplary in nature and should not be understood as limiting the invention. Rather, the end of the drive shaft 1334, which end faces the bevel gear 1451, can also have an at least substantially uniform outer diameter and / or be mounted in the attachment housing 1210 via a bearing element 1437, 1436.Furthermore, the locking unit 1220 of the angle attachment 1200 is preferably designed analogously to the locking unit 220 of the tool attachment 200 of FIG. 3 a, wherein the actuating sleeve 1222 is preferably arranged on the attachment housing 1210 in a manner secured against rotation. The actuating sleeve 1222 preferably has a sleeve-shaped base body 1411 with an outer and inner periphery 1414, 1413. The inner periphery 1413 is preferably designed in such a way that the actuating sleeve 1222 engages around an outer periphery 1412 of the attachment housing 1210 at least in sections. Furthermore, the actuating sleeve 1222 preferably has a circumferential collar 1415 at its first end 1401 facing the angle gear 1450 in FIG. 14 a, and / or at its opposite second end 1402 at least one, preferably four retaining webs 1421, 1423 ( 1422, 1424 in FIG. 15 ) are arranged with a respective projection 1425, 1427 ( 1426, 1428 in FIG. 15 ). The retaining webs 1421, 1423 ( 1422, 1424 in FIG. 15 ) provided with the projections 1425, 1427 ( 1426, 1428 in FIG. 15 ) are preferably arranged uniformly distributed in the circumferential direction of the actuating sleeve 1222.Preferably, the projections 1425, 1427 (1426, 1428 in FIG. 15 ) are designed for positioning at least one spring element 1429, wherein the at least one spring element 1429 applies force to the fastening element 1215 of the angle attachment 1200 in a direction pointing away from the attachment housing 1210, i.e. in the direction of the second axial end 1202 of the angle attachment 1200, in order to form the above-described distance (h in FIG. 17 a). As described above, the at least one spring element 1429 is arranged on a projection 1425, 1427 (1426, 1428 in FIG. 15 ) and is located with one axial end on the retaining web 1421, 1423 (1422, 1424 in FIG. 15 ) assigned to the projection 1425, 1427 (1426, 1428 in FIG. 15 ) and at its other axial end on a supporting surface 1404 of the attachment housing 1210.In addition, the fastening unit 1215 is preferably designed to derive axial forces acting on the angle attachment 1200 during operation of the angle attachment 1200 fastened to the machine interface 150 of the hand-held power tool 100. For this purpose, a gap 1462 is preferably formed between the axial contact surface 366 of the drive shaft 1334 of the angle attachment 1200 and the support surface 348 of the output shaft 124 of the hand-held power tool 100 in the locked state of the angle attachment 1200 at the machine interface 150. By means of this gap 1462, a striking function of a striking wrench can preferably be automatically deactivated.It is pointed out that such a gap is formed on the angle attachment 1200 merely by way of example and this should not be considered as a limitation of the invention. Rather, such a gap can also be used with any other tool attachments, for example chuck attachments and / or eccentric attachments. It is also noted that the angle adjustment member 1215 is decoupled from the drive shaft 1334, and does not rotate with the drive shaft 1334. Furthermore, the actuating sleeve 1222 is preferably also decoupled from the drive shaft 1334. Here, the at least one spring element 1429 illustratively acts on the actuating sleeve 1222 in the direction of the second axial end 1202 of the angle attachment 1200, wherein said actuating sleeve abuts the angle adjustment member 1215. The closure element 336 does not abut on the actuating sleeve 1222, but rather on the securing element 332.FIG. 14 bshows the angle attachment 1200 from FIGS. 13 and 14 arranged on the fastening interface 150 of the hand-held power tool 100 from FIG. 12 with a drive shaft 1334 according to a second embodiment. In this case, the drive shaft 1334, on its axial end facing the bevel gear 1451, preferably has an opening 1480, through which a torque transmission element 1418 forwards a torque absorbed by the output shaft 124 of the hand-held power tool 100 to the angle transmission 1450. Illustratively, the torque transmission element 1418 has, at its axial end facing the second axial end of the angle attachment 1200, a receiving section 1482, with which it is arranged in the inner receptacle 148 of the output shaft 124.In the direction of the bevel gear 1451, the torque transmission element 1418 penetrates the drive shaft 1334 in the opening 1480, and has a first, second and third region 1433, 1434, 1435, analogous to the drive shaft 1334 of FIG. 14 a. In this case, the torque transmission element 1418 is rotatably mounted in the first and second regions 1433, 1434 via a bearing element 1437, 1436 in the attachment housing 1210, wherein the first region 1433 illustratively has a smaller outer diameter than the second region 1434. In the third region 1435, the bevel gear 1451 is illustratively arranged.It is pointed out that the configuration of the end of the torque transmission element 1418 facing the bevel gear 1451 is merely exemplary in nature and should not be understood as a limitation of the invention. Rather, the end of the torque transmission element 1418 facing the bevel gear 1451 can also have a constant outer diameter and / or be mounted in the attachment housing 1210 via a bearing element 1437, 1436.FIG. 15 shows the actuating sleeve 1222 from FIGS. 13 and 14 with its sleeve-shaped base body 1411 and the outer and inner periphery 1414, 1413. Furthermore, FIG. 15 illustrates the four retaining webs 1421, 1422, 1423, 1424 with the respective projections 1425, 1426, 1427, 1428 of the actuating sleeve 1222. The retaining webs 1421, 1422, 1423, 1424 have, by way of example, a circular-segment-shaped inner periphery 1417 which is designed in the manner of an inner periphery assigned to the inner periphery 1413. Preferably, the inner periphery 1417 has a smaller diameter than the inner periphery 1413.Furthermore, it is pointed out that an embodiment of the actuating sleeve 1222 with four retaining webs 1421, 1422, 1423, 1424 is merely exemplary in nature and should not be considered as a limitation of the invention. Rather, the actuating sleeve 1222 may include any number of retaining webs, e.g., less than or more than four.FIG. 16 ashows a first embodiment of the tool holder 1240 of the angle attachment 1200 of FIGS. 13 and 14, in which the receiving region 1376 and the contact surface 1372 preferably have a round cross section and preferably an outer diameter of at least approximately the same size. Here, the collar 1374 separates the receiving region 1376 and the contact surface 1372 from one another.FIG. 16 bshows a second embodiment of the tool receptacle 1240 of the angle attachment 1200 of FIGS. 13 and 14, in which the receptacle region 1376 is formed in the manner of an annular fillet groove, which preferably has an outer diameter of the same size as the contact surface 1372 at its deepest point. Again, the collar 1374 separates the receiving region 1376 and the abutment surface 1372 from one another.FIG. 16 cshows a third embodiment of the tool holder 1240 of the angle attachment 1200 of FIGS. 13 and 14, which illustratively has a hexagonal cross section 1510 provided with a first and second recess 1512, 1514. Preferably, the two recesses 1512, 1514 have a round cross section. Preferably, the first recess 1512 forms the receiving region 1376, and the second recess 1514 forms the contact surface 1372. Illustratively, an intermediate region 1516 spaces the receiving region 1376 from the supporting surface 1375 in the axial direction. It is noted that the cross section 1510 may also have any other shape, e.g. quadrilateral.FIG. 16 d shows a fourth embodiment of the tool holder 1240 of the angle attachment 1200 of FIGS. 13 and 14, which illustratively has a round cross section 1510. Illustratively, the receiving region 1376 is separated from the contact surface 1372 by an annular fillet groove 1517.It is pointed out that the configurations of the tool holder 1240 shown in FIGS. 16 ato 16 d are described merely by way of example with respect to the tool holder 1240 of the angle attachment 1200 and should not be regarded as a limitation of the invention. Rather, such embodiments of the tool holder can also be formed, for example, on the above-described tool holder 140 of the hand-held power tool 100.FIG. 17 ashows the angle attachment 1200 of FIGS. 13 and 14 with the actuating sleeve 1222, which is only partially shown for the purpose of illustrating the axially movable angle adjustment member 1215 arranged at the second axial end 1202 of the attachment housing 1210. In this case, the angle adjustment member 1215 is at a predefined distance h from the attachment housing 1210 in the non-assembled state of the angle attachment 1200 relative to the hand-held power tool 100 of FIG. 12. This distance h is preferably predefined by a length of the shoulder screws 1322, 1324 or their respective shoulder length.The distance h is preferably designed to decrease at least in sections during mounting of the angle attachment 1200 on the machine interface 150, so that a possible maximum axial play between the angle adjustment member 1215 and the machine interface 150 can be compensated for by a respective size of the distance h. For this purpose, as described above, the at least one spring element 1429 acts on the angle adjustment member 1215 in a direction facing away from the attachment housing 1210, so that the angle attachment 1200 can be braced at least approximately and preferably completely without play on the hand-held power tool 100 by reducing the distance h.In addition, FIG. 17 aillustrates the arrangement of the at least one spring element 1429 on the projection 1426 or 1425 of the actuating sleeve 1222. In this case, the angle adjustment member 1215 preferably has at least one, illustratively a first and second recess 1621, 1622 on its end face 1632 facing the attachment housing 1210 for at least sectionally receiving the spring element 1429. Furthermore, the attachment housing 1210 preferably has, in the region of the recesses 1621, 1622, receptacles 1633, 1634 for at least partially receiving the spring element 1429. The angle adjustment member 1215 and / or the attachment housing 1210 preferably has a number of recesses 1621, 1622 matched to the projections 1425, 1426, 1427, 1428 of the actuating sleeve 1222. In this case, one of the projections 1425, 1426, 1427, 1428 is arranged in each case in one of the recesses 1621, 1622 or receptacles 1633, 1634.According to a second embodiment, the angle adjustment member 1215 has an annular groove 1610 for arrangement on the machine interface 150 with the triggering element 1010 of FIG. 10 a. The annular groove 1610 divides the plurality 1350 of angle adjustment members 1351-1358 into first and second angle adjustment sub-members 1612, 1614. In this case, the first angle adjustment sub-elements 1612 are preferably arranged in the region of the outer periphery 1362 and the second angle adjustment sub-elements 1614 are arranged in the region of the inner periphery 1362 of the angle adjustment member 1215. A torque acting on the angle attachment 1200 can be supported via the first and / or second angle adjustment sub-elements 1612, 1614.FIG. 17 bshows the angle attachment 1200 from FIG. 17 awithout the actuating sleeve 1222 and illustrates the arrangement of the spring element 1429 in the recesses 1621, 1622of the angle adjustment member 1215 and the receptacles 1633, 1634of the attachment housing 1210. Furthermore, FIG. 17 billustrates the axial distance h between the angle adjustment member 1215 and the attachment housing 1210.FIG. 18 shows the angle adjustment member 1215, which is acted upon by the spring element 1429, and is screwed to the attachment housing 1210 as illustrated, and illustrates the distance h, which can be adjusted by a respective collar length of the collar screws 1322, 1324. Here, the illustratively two shoulder screws 1322, 1324 are each arranged in an associated threaded bore 1722, 1724 of the attachment housing 1210.FIG. 19 ashows the angle attachment 1200 of FIGS. 17 and 18 in the mounted state on the machine interface 150 of the hand-held power tool 100 of FIGS. 10 aand 12, respectively, in which the distance h has at least decreased due to the mounting and has preferably become zero, so that the angle adjustment member 1215 abuts the attachment housing 1210. In this case, the shoulder screws 1322, 1324 protrude by a protrusion b on the side facing the machine interface 150. Preferably, the projection b in the mounted state is equal to the pitch h in the non-mounted state of the angle adjusting member 1215. Furthermore, FIG. 19 aillustrates the preferred arrangement of the arcuate projections 1012 of the machine interface 150 in the annular groove 1610 of the angle adjustment member 1215 of FIG. 17 a.FIG. 19 bshows the angle attachment 1200 of FIGS. 18 and 19 ain the mounted state on the machine interface 150 of the hand-held power tool 100 of FIGS. 10 aand 12 in a second view rotated in the circumferential direction of the angle attachment 1200 and illustrates the arrangement of the spring element 1429 on the projection 1425 and 1427, respectively, of the actuating sleeve 1222. Preferably, at least one shoulder screw 1322, 1324 is arranged in each case between two projections 1425, 1427 in the circumferential direction of the fastening element 1215.FIGS. 20 aand 20 b show the angle attachment 1200 of FIGS. 18 and 19 in the assembled state without the machine interface 150 of the hand-held power tool 100 of FIGS. 10 aand 12 respectively for illustrating the at least reduced, preferably no longer present, distance h. Furthermore, FIGS. 20 aand 20 b illustrate the protrusion b of the shoulder screws 1322, 1324 from their recesses. In this case, the actuating sleeve 1222 can be seen partially in FIG. 20 a, and the actuating sleeve 1222 is not illustrated in FIG. 20 b.FIG. 21 shows the angle attachment 1200 of FIGS. 17 to 20 with the angle setting element 1215 and the angle position setting unit 1360, which according to one embodiment has an angle position display unit 2100 for displaying an adjustable angle position of the angle attachment 1200 on the machine interface 150 of the hand-held power tool 100 of FIG. 12. This angular position indicator unit 2100 is preferably connected to the actuating sleeve 1222, preferably formed integrally therewith or integral part thereof. In this case, the angular position display unit 2100 is preferably designed in the manner of strokes, numerical values and / or abstract details which are arranged along an outer periphery 1414 of the actuating sleeve 1222.The numerical values can indicate a numbering of the adjustable angular dimensions or the angular dimensions, wherein the angular dimensions can be indicated in a range from 0° to 180° or 360°. When the angular dimensions in the range from 0° to 180° are specified, these can be specified in only positive numerical values or in positive and negative numerical values with respect to the starting position. In addition, an abstract indication of the angular positions can be formed, for example, by numbering by means of letters from, for example, A to L or in the manner of symbols. Furthermore, a combination of the angular position configuration types mentioned is also possible, for example by lines at which the angular dimensions stand, etc.FIG. 22 shows the tool system 180 of FIG. 12 with the hand-held power tool 100 and the angle attachment 1200 with the angular position setting unit 1360 described above. According to a third embodiment, the angle setting member 1215 assigned to the angle position setting unit 1360 preferably has a first and a second plurality 1350, 2260, of angle setting elements 1351-1358; 2261-2264, which are arranged radially offset with respect to one another at the attachment interface 1250. Illustratively, the first plurality 1350 of angle adjustment elements 1351-1358 is arranged in the region of an outer periphery 1362 of the disk-shaped angle adjustment member 1215, and the second plurality 2260 of angle adjustment elements 2261-2264 is arranged in the region of an inner periphery 1364 of the angle adjustment member 1215. In this case, a torque acting on the angle attachment 1200 can be supported via the first and / or second multiplicity 1350, 2260 of angle adjustment elements 1351-1358; 2261-2264.According to an embodiment, the first and second pluralities 1350, 2260 of angle adjustment elements 1351-1358; 2261-2264 comprise different numbers of angle adjustment elements 1351-1358; 2261-2264, wherein the first plurality 1350 preferably comprises twice as many angle adjustment elements 1351-1358; 2261-2264 as the second plurality 2260. Preferably, the first plurality 1350 is evenly distributed in the circumferential direction of the angle adjustment member 1215 and the second plurality 2260 is unevenly distributed in the circumferential direction of the angle adjustment member 1215. Moreover, the second plurality 2260 is preferably offset from the first plurality 1350 in the circumferential direction of the angle adjustment member 1215. Illustratively, the angle setting element 2261 is arranged between the angle setting elements 1358 and 1351, the angle setting element 2262 is arranged between the angle setting elements 1351 and 1352, the angle setting element 2263 is arranged between the angle setting elements 1354 and 1355, and the angle setting element 2264 is arranged between the angle setting elements 1355 and 1356.It is to be noted that the eight angle adjusting elements 1351-1358 shown in FIG. 22 and the four angle adjusting elements 2261-2264 are merely exemplary in nature and should not be understood as limiting the invention. Rather, any number of angle adjustment elements can be provided, wherein the first plurality 1350 of angle adjustment elements 1351-1358 can also be arranged in the region of the inner periphery 1364 and the second plurality 2260 of angle adjustment elements 2261-2264 can also be arranged in the region of the outer periphery 1362. It is also pointed out that the angle adjustment elements 1351-1358 and 2261-2264, respectively, have a rectangular cross section merely by way of example. Alternatively, it can also have any other cross section, for example a triangular, round or oval cross section.For use with this angular position setting unit 1360, the hand-held power tool 100 preferably has at its machine interface 150 the angular position setting device 160 designed according to a second embodiment. Similarly to the angle attachment 1200, this preferably has a first and second plurality 2210, 2230 of angle adjusting members 2211-2226; 2231-2244. These are preferably arranged radially offset with respect to one another at the machine interface 150. In this case, the angle adjusting members 2211-2226 of the first plurality 2210 are arranged, for example, in the region of the outer periphery 159 of the disk-shaped angle adjusting element 158 and the angle adjusting members 2231-2244 of the second plurality 2230 are arranged in the region of the inner periphery 157 of the angle adjusting element 158. Preferably, the first and / or second plurality 2210, 2230 is arranged in a uniformly distributed manner in the circumferential direction of the angle adjustment element 158.Furthermore, the second plurality 2230 of angle adjusting members 2231-2244 comprises at least one, illustratively a first and a second blocking member 2231, 2232. These blocking members 2231, 2232 are preferably arranged opposite to one another and preferably subdivide the angle adjustment members 2231-2244 of the second plurality 2230 into a first and second sub-region. Preferably, the blocking members 2231, 2232 are formed to have at least the size of two angle adjusting members 2211, 2212 adjacent in the circumferential direction of the angular position adjusting device 160. Illustratively, the first blocking member 2231 is disposed between the angle adjustment member 2244 and the angle adjustment member 2233, and the second blocking member 2232 is disposed between the angle adjustment member 2238 and the angle adjustment member 2238. Preferably, the blocking members 2231, 2232 are not designed to receive an angle adjustment element 2261-2264 of the angle attachment 1200.According to one embodiment, two angle adjusting members 2211, 2212 of the first plurality 2210, which are adjacent in the circumferential direction of the angle position adjusting device 160, each form a first toothing portion 2299, and two angle adjusting members 2233, 2234 of the second plurality 2230, which are adjacent in the circumferential direction of the angle position adjusting device 160, form a second toothing portion 2298. Each toothed section 2299, 2298 preferably forms a first angle adjustment element receptacle 2227, 2245 for receiving an associated angle adjustment element 1351-1358, 2261-2264 of the tool attachment 1200. Furthermore, a second angle-adjusting element receptacle 2228, 2246 is formed in each case between two toothing sections 2299, 2298 which are respectively adjacent in the circumferential direction of the angle position adjusting device 160.Preferably, the first angle adjustment element receptacles 2227 of the toothing section 2299 and the second angle adjustment element receptacles 2246 of the toothing section 2298 have a larger receptacle region than the second angle adjustment element receptacles 2228 and the first angle adjustment element receptacles 2245. Furthermore, the first angle-adjusting-element receptacles 2227 of the toothing section 2299 have a larger receptacle region than the first angle-adjusting-element receptacles 2245.It is pointed out that the sixteen angle adjusting members 2211-2226 shown in FIG. 22, by way of example, and the fourteen angle adjusting members 2231-2244 by way of example, and the two blocking members 2231, 2232, respectively, have merely an exemplary character and should not be understood as limiting the invention. Rather, the angle adjusting members can have any number, wherein the first plurality 2210 of angle adjusting members 2211-2226 can also be arranged in the region of the inner periphery 157 and the second plurality 2230 of angle adjusting members 2231-2244 can also be arranged in the region of the outer periphery 159. It is furthermore pointed out that the angle adjusting members 2211-2226 and 2231-2244 have, merely by way of example, an approximately rectangular cross section; this can also have any other desired cross section, for example a triangular, round or oval cross section.The following FIGS. 23 ato 23 l show the preferably twelve possible angular positions of the configuration of the angular position setting unit 1360 of the angle attachment 1200 shown in FIG. 22 in conjunction with the angular position setting device 160 of the hand-held power tool 100, which together form an angled toothing 2300. In this case, the angled toothing 2300 can preferably form an angle of 0°; 45°; 67.5°; 90°; 112.5°; 135°; 180°; 225°; 247.5°; 270°; 292.5° and / or 315° between the angled attachment 1200 and the hand-held power tool 100.FIG. 23 ashows the angle attachment 1200 of FIG. 22 at an angle of 0 degrees at the machine interface 150 of FIG. 22, wherein the first plurality 1350 of angle adjusting elements 1351-1358 is arranged in the first angle adjusting element receptacles 2227 of the toothing portion 2299 and the second plurality 2260 of angle adjusting elements 2261-2264 is arranged in the second angle adjusting element receptacles 2246 of the toothing portion 2298. Illustratively, the blocking member 2231 is disposed between the angle adjusting members 2264 and 2263, and the blocking member 2232 is disposed between the angle adjusting members 2262 and 2261.FIG. 23 bshows the angle attachment 1200 of FIG. 22 at an angle of 45 degrees at the machine interface 150 of FIG. 22, wherein the first plurality 1350 of angle adjusting elements 1351-1358 is arranged in the first angle adjusting element receptacles 2227 of the toothing portion 2299 and the second plurality 2260 of angle adjusting elements 2261-2264 is arranged in the second angle adjusting element receptacles 2246 of the toothing portion 2298. Illustratively, the angle adjustment element 2264 is arranged between the blocking member 2231 and the angle adjustment member 2233, the angle adjustment element 2263 is arranged between the angle adjustment members 2234 and 2235, the angle adjustment element 2262 is arranged between the blocking member 2232 and the angle adjustment member 2239, and the angle adjustment element 2261 is arranged between the angle adjustment members 2240 and 2241.FIG. 23 cshows the angle attachment 1200 of FIG. 22 at an angle of 67.5 degrees at the machine interface 150 of FIG. 22, wherein the first plurality 1350 of angle adjustment elements 1351-1358 is arranged in the second angle adjustment element receptacles 2228 of the toothing portion 2299 and the second plurality 2260 of angle adjustment elements 2261-2264 is arranged in the first angle adjustment element receptacles 2245 of the toothing portion 2298. Illustratively, the angle setting member 2264 is disposed between the angle setting members 2233 and 2234, the angle setting member 2263 is disposed between the angle setting members 2235 and 2236, the angle setting member 2262 is disposed between the angle setting members 2239 and 2240, and the angle setting member 2261 is disposed between the angle setting members 2241 and 2242.FIG. 23 d shows the angle attachment 1200 of FIG. 22 at an angle of 90 degrees at the machine interface 150 of FIG. 22, wherein the first plurality 1350 of angle adjusting elements 1351-1358 is arranged in the first angle adjusting element receptacles 2227 of the toothing portion 2299 and the second plurality 2260 of angle adjusting elements 2261-2264 is arranged in the second angle adjusting element receptacles 2246 of the toothing portion 2298. Illustratively, the angle setting member 2264 is disposed between the angle setting members 2234 and 2235, the angle setting member 2263 is disposed between the angle setting members 2236 and 2237, the angle setting member 2262 is disposed between the angle setting members 2240 and 2241, and the angle setting member 2261 is disposed between the angle setting members 2242 and 2243.FIG. 23 e shows the angle attachment 1200 of FIG. 22 at an angle of 112.5 degrees at the machine interface 150 of FIG. 22, wherein the first plurality 1350 of angle adjustment elements 1351-1358 is arranged in the second angle adjustment element receptacles 2228 of the toothing portion 2299 and the second plurality 2260 of angle adjustment elements 2261-2264 is arranged in the first angle adjustment element receptacles 2245 of the toothing portion 2298. Illustratively, the angle setting member 2264 is disposed between the angle setting members 2235 and 2236, the angle setting member 2263 is disposed between the angle setting members 2237 and 2238, the angle setting member 2262 is disposed between the angle setting members 2241 and 2242, and the angle setting member 2261 is disposed between the angle setting members 2243 and 2244.FIG. 23 f shows the angle attachment 1200 of FIG. 22 at an angle of 135 degrees at the machine interface 150 of FIG. 22, wherein the first plurality 1350 of angle adjusting elements 1351-1358 is arranged in the first angle adjusting element receptacles 2227 of the toothing portion 2299 and the second plurality 2260 of angle adjusting elements 2261-2264 is arranged in the first angle adjusting element receptacles 2245 of the toothing portion 2298. Illustratively, the angle setting element 2264 is arranged between the angle setting members 2236 and 2237, the angle setting element 2263 is arranged between the angle setting member 2238 and the blocking member 2232, the angle setting element 2262 is arranged between the angle setting members 2242 and 2243, and the angle setting element 2261 is arranged between the angle setting member 2244 and the blocking member 2231.FIG. 23 g shows the angle attachment 1200 of FIG. 22 at an angle of 180 degrees at the machine interface 150 of FIG. 22, wherein the angle adjustment elements 1351-1358 are arranged analogously to FIG. 23 a in the first angle adjustment element receptacles 2227, and the angle adjustment elements 2261-2264 are arranged in the second angle adjustment element receptacles 2246. Illustratively, the blocking member 2232 is disposed between the angle adjusting members 2264 and 2263, and the blocking member 2231 is disposed between the angle adjusting members 2262 and 2261.FIG. 23 h shows the angle attachment 1200 of FIG. 22 at an angle of -45 and 225 degrees, respectively, at the machine interface 150 of FIG. 22, wherein the angle adjustment elements 1351-1358 are arranged in the first angle adjustment element receptacles 2227, analogous to FIG. 23 b, and the angle adjustment elements 2261-2264 are arranged in the second angle adjustment element receptacles 2246. Illustratively, the angle adjustment element 2262 is arranged between the blocking member 2231 and the angle adjustment member 2233, the angle adjustment element 2261 is arranged between the angle adjustment members 2234 and 2235, the angle adjustment element 2264 is arranged between the blocking member 2232 and the angle adjustment member 2239, and the angle adjustment element 2263 is arranged between the angle adjustment members 2240 and 2241.FIG. 23 i shows the angle attachment 1200 of FIG. 22 at an angle of -67.5 and 247.5 degrees, respectively, at the machine interface 150 of FIG. 22, wherein the angle adjustment elements 1351-1358 are arranged in the second angle adjustment element receptacles 2228 analogously to FIG. 23 c, and the angle adjustment elements 2261-2264 are arranged in the first angle adjustment element receptacles 2245. Illustratively, the angle setting member 2262 is disposed between the angle setting members 2233 and 2234, the angle setting member 2261 is disposed between the angle setting members 2235 and 2236, the angle setting member 2264 is disposed between the angle setting members 2239 and 2240, and the angle setting member 2263 is disposed between the angle setting members 2241 and 2242.FIG. 23j shows the angle attachment 1200 of FIG. 22 at an angle of -90 and 270 degrees, respectively, at the machine interface 150 of FIG. 22, wherein the angle adjustment elements 1351-1358 are arranged in the first angle adjustment element receptacles 2227 analogously to FIG. 23d and the angle adjustment elements 2261-2264 are arranged in the second angle adjustment element receptacles 2246. Illustratively, the angle setting member 2262 is disposed between the angle setting members 2234 and 2235, the angle setting member 2261 is disposed between the angle setting members 2236 and 2237, the angle setting member 2264 is disposed between the angle setting members 2240 and 2241, and the angle setting member 2263 is disposed between the angle setting members 2242 and 2243.FIG. 23 k shows the angle attachment 1200 of FIG. 22 at an angle of -112.5 and 292.5 degrees, respectively, at the machine interface 150 of FIG. 22, wherein the angle adjustment elements 1351-1358 are arranged in the second angle adjustment element receptacles 2228 analogously to FIG. 23 f, and the angle adjustment elements 2261-2264 are arranged in the first angle adjustment element receptacles 2245. Illustratively, the angle setting member 2262 is disposed between the angle setting members 2235 and 2236, the angle setting member 2261 is disposed between the angle setting members 2237 and 2238, the angle setting member 2264 is disposed between the angle setting members 2241 and 2242, and the angle setting member 2263 is disposed between the angle setting members 2243 and 2244.FIG. 23 l shows the angle attachment 1200 of FIG. 22 at an angle of -135 or 315 degrees at the machine interface 150 of FIG. 22, wherein the angle adjustment elements 1351-1358 are arranged in the first angle adjustment element receptacles 2227, analogous to FIG. 23 f, and the angle adjustment elements 2261-2264 are arranged in the first angle adjustment element receptacles 2245. Illustratively, the angle setting element 2262 is arranged between the angle setting members 2236 and 2237, the angle setting element 2261 is arranged between the angle setting member 2238 and the blocking member 2232, the angle setting element 2264 is arranged between the angle setting members 2242 and 2243, and the angle setting element 2263 is arranged between the angle setting member 2244 and the blocking member 2231.The following FIGS. 24 ato 24 d show angular positions of the configuration of the angular position setting unit 1360 of the angle attachment 1200 shown in FIG. 22 in conjunction with the angular position setting device 160 of the hand-held power tool 100, which are not settable due to a collision of the angle setting elements 2261-2264 with the blocking members 2231, 2232. Accordingly, the angle attachment 1200 cannot be arranged at an angle of 22.5°, 157.5°, 202.5° and 337.5° with respect to the hand-held power tool 100.FIG. 24 ashows the angle attachment 1200 of FIG. 22 at an angle of 22.5 degrees at the machine interface 150 of FIG. 22, wherein illustratively in a first region 2412 a collision occurs between the blocking member 2231 and the angle adjusting element 2264, and in a second region 2414 a collision occurs between the blocking member 2232 and the angle adjusting element 2262.FIG. 24 bshows the angle attachment 1200 of FIG. 22 at an angle of 157.5 degrees at the machine interface 150 of FIG. 22, wherein illustratively in the first region 2412 a collision occurs between the blocking member 2231 and the angle adjustment element 2261 and in the second region 2414 a collision occurs between the blocking member 2232 and the angle adjustment element 2263.FIG. 24 cshows the angle attachment 1200 of FIG. 22 at an angle of 202.5 degrees at the machine interface 150 of FIG. 22, wherein illustratively in the first region 2412 a collision occurs between the blocking member 2231 and the angle adjustment element 2262 and in the second region 2414 a collision occurs between the blocking member 2232 and the angle adjustment element 2264.FIG. 24 d shows the angle attachment 1200 of FIG. 22 at an angle of 337.5 degrees at the machine interface 150 of FIG. 22, wherein illustratively in the first region 2412 a collision occurs between the blocking member 2231 and the angle adjustment element 2263 and in the second region 2414 a collision occurs between the blocking member 2232 and the angle adjustment element 2261.It is pointed out that the embodiments of the machine interface 150 with the angular position adjusting device 160 shown in the drawings and described above and of the chuck attachment 200 with the locking unit 220 and / or of the angle attachment 1200 with the angle adjusting member 1215 can be combined with one another. Thus, for example, the chuck attachment 200 of FIG. 1 can be arranged on the angular position setting device 160 of the hand-held power tool 100 of FIG. 1, which is formed without a trigger element 1010 according to the first embodiment, and / or on the angular position setting device 160 according to the second embodiment of FIG. 22. The chuck attachment 200 of FIG. 10 bmay be arranged on the angular position setting device 160 of the hand-held power tool 100 of FIG. 1, which is configured without a trigger element 1010 according to the first embodiment, and on the angular position setting device 160 of the first embodiment with a trigger element 1010 of FIG. 10 aand / or on the angular position setting device 160 according to the second embodiment of FIG. 22, the angular position adjusting device 160 of the first embodiment with triggering element 1010 of FIG. 10 aand / or the angular position adjusting device 160 according to the second embodiment of FIG. 22 can be arranged. Moreover, for example, the angle attachment 1200 may be provided with the lateral force display unit 240, or the chuck attachment 200 may be provided with the fastening member 1215 of the angle attachment 1200, or the chuck attachment 200 may be provided with the angular position adjustment unit 1360, etc.

Claims

Tool attachment (1200) having an attachment housing (1210) which has a first and second axial end (1201, 1202), wherein a tool receptacle (1240) for receiving an insert tool is arranged at the first axial end (1201), and an attachment interface (1250) is arranged at the second axial end (1202), which interface has a fastening element (1215) designed as a crown disk for the rotationally secured fastening of the tool attachment (1200) to a machine interface (150) of a hand-held power tool (100), characterized in that the fastening element (1215) is arranged in an axially movable manner at the second axial end (1202) of the attachment housing (1210) and is acted upon by force in a direction pointing away from the attachment housing (1210), wherein the fastening element (1215) is acted upon by means of at least one fastening element (1322 designed as at least one shoulder screw, 1324) is fastened to the attachment housing (1210) and is displaceable at least in regions axially along the fastening member (1322, 1324).Tool attachment according to Claim 1, characterized in that the fastening element (1215) in the non-mounted state of the tool attachment (1200) relative to the hand-held power tool (100) is at a predefined distance (h) from the attachment housing (1210).Tool attachment according to Claim 2, characterized in that the predefined distance (h) is designed to be reduced at least in sections during mounting of the tool attachment (1200) on the machine interface (150) of the hand-held power tool (100).Tool attachment according to one of the preceding claims, characterized in that the fastening element (1215) is acted upon by force via at least one spring element (1429) in the direction pointing away from the attachment housing (1210).Tool attachment according to claim 4, characterised in that the fastening element (1215) has at least one recess (1621) on its end side (1632) facing the attachment housing (1210) for at least section-wise receiving of the at least one spring element (1429).Tool attachment according to Claim 4 or 5, characterized in that a locking unit (1220) is provided which is designed to lock the tool attachment (1200) on the machine interface (150) of the hand-held power tool (100) in a locked state and to enable the tool attachment (1200) to be removed from the machine interface (150) in the unlocked state, wherein the locking unit (1220) has at least one projection (1425) for positioning the at least one spring element (1429).Tool attachment according to Claims 5 and 6, characterized in that the at least one projection (1425) of the locking unit (1220) is arranged in the at least one recess (1621) of the fastening element (1215).Tool attachment according to one of Claims 4 to 7, characterized in that the at least one spring element (1429) applies force to the fastening element (1215) in such a way that the tool attachment (1200) can be fastened in the axial direction at least approximately without play to the machine interface (150) of the hand-held power tool (100).Tool attachment according to one of the preceding claims, characterized in that the fastening unit (1215) is designed to derive axial forces acting on the tool attachment (1200) during operation of the tool attachment fastened to the machine interface (159) of the hand-held power tool (100).Tool attachment according to Claim 9, characterized in that an axial bearing surface (366) is provided for bearing against a supporting surface (348) provided in the region of the machine interface (159) of the hand-held power tool (100), wherein, when the tool attachment (200) is fastened to the machine interface (150) of the hand-held power tool (100), a gap (1462) is formed between the axial bearing surface (366) and the supporting surface (348) for dissipating the acting axial forces.Tool system (180) having a hand-held power tool (100) which has a machine interface (150), and having a tool attachment (1200) which has an attachment housing (1210) with a first and second axial end (1201, 1202), wherein a tool receptacle (1240) for receiving an insert tool is arranged at the first axial end (1201), and an attachment interface (1250) is arranged at the second axial end (1202), which attachment interface has a fastening element (1215) designed as a crown disc for the rotationally secured fastening of the tool attachment (1200) to the machine interface (150) of the hand-held power tool (100), characterized in that the fastening element (1215) is arranged such that it can move axially at the second axial end (1202) of the attachment housing (1210) and is acted upon by force in a direction pointing away from the attachment housing (1210), wherein the fastening element (1215) is fastened to the attachment housing (1210) via at least one fastening member (1322, 1324) designed as at least one shoulder screw and is displaceable axially along the fastening member (1322, 1324) at least in regions.

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