EP3517248B1 - Holder device for a hand-held machine tool - Google Patents

Description

State of the art

The present invention relates to a holding device for a hand-held power tool with a tool holder which is designed at least to hold an insert tool, in particular a screwdriver bit, the holding device being provided for holding a fastening element, in particular a screw element.

Such a holding device for a hand-held power tool is known from the prior art. In this case, the hand-held power tool has a tool holder which is designed to hold an insert tool designed as a screwdriver bit. The holding device is provided for holding a screw element, with the holding device being designed as a bit holder of the hand-held power tool. In addition, from the U.S. 2012/240372 A1 a holding device according to the preamble of claim 1 is known.

Disclosure of Invention

The present invention provides a holding device for a hand-held power tool with a tool holder which is designed at least to hold an insert tool, in particular a screwdriver bit, the holding device being provided for holding a fastening element, in particular a screw element. A first holding unit for fixing the holding device on a hand-held power tool and a second holding unit, which can be moved axially on the first holding unit, for holding a fastening element, in particular a screw element, are provided, the second holding unit being able to be arranged in a working position and a parking position and having a receptacle, in which a holding element, in particular a magnet, is arranged is, in the working position, to hold the fastener in

to allow axial direction of the holding device. The second holding unit is held in the parking position by the holding element.

The invention thus makes it possible to provide a holding device in which the first holding unit enables the holding device to be arranged directly on the hand-held power tool and in which the holding element assigned to the second holding unit enables a simplified screwing process. A compact holding device can thus be provided, the comparatively short design of which allows a safer and user-friendly screwing process. The application tool designed as a screwdriver bit can be magnetized by the retaining element designed as a magnet and the screw element can thus be held by the magnetized screwdriver bit.

The receptacle is preferably arranged on a free axial end of the second holding unit, with the holding element being arranged in the receptacle by means of a materially bonded connection, in particular an adhesive connection. Thus, an arrangement of the holding element in the receptacle of the second holding unit can be made possible in a simple manner.

The receptacle is preferably arranged on an axial end of the second retaining unit that faces the first retaining unit, the retaining element being fixed in the receptacle by means of a clamping sleeve. An alternative fixation of the holding element in the receptacle of the second holding unit can thus be made possible in a simple and uncomplicated manner.

According to one embodiment, the clamping sleeve has at least one first clamping element and at least one second clamping element, and the second holding unit comprises at least one fixing element, with the first clamping element fastening the holding element to the second holding unit, and the second clamping element having an operative connection with the fixing element, in particular a form - And / or non-positive connection forms. A secure and reliable fixing of the holding element in the receptacle of the second holding unit can thus be made possible.

The receptacle is preferably arranged at a distance from a free axial end of the second holding unit, the second holding unit being molded onto the holding element by means of plastic injection molding. A further fixation of the holding element in the receptacle of the second holding unit can thus be formed, through which a stable and robust arrangement of the holding element can be made possible.

In the working position of the second holding unit, the holding element is preferably displaced axially from a free axial end of an output shaft driving the tool holder in the direction of an axial end facing the first holding unit in such a way that the holding element comes into contact with a fastening element and in the parking position in such a way axially in the direction a free axial end of the second holding unit is shifted so that the second holding unit releases the insert tool. Thus, in the working position, or during a screwing process, a fastening element can be fixed at least axially by the holding device and in the parking position a tool change can take place, whereby a one-handed screwing process and a one-handed tool change can be made possible.

An output shaft driving the tool holder is preferably provided with at least one inner holder, the inner holder being designed for the arrangement of an insert tool, and an insert tool arranged in the inner holder protruding beyond a free axial end of the second holding unit in the parking position of the second holding unit. A tool change can thus be made possible in a simple and reliable manner.

According to one embodiment, the second holding unit is loaded into the working position by at least one spring element. A robust and safe working position can thus be provided.

The second holding unit preferably has, in particular on its outer circumference, at least one actuating element for manually adjusting the second holding unit from the working position to the parking position or vice versa. A manual adjustment between the working position and the parking position can thus be made possible easily and in an uncomplicated manner.

In the working position of the second holding unit, a side of a fastening element arranged on the holding device which faces the holding element preferably rests against a side of the holding element which faces the fastening element. An axial fixation of a fastening element can thus be made possible in a simple and uncomplicated manner.

According to one embodiment, the second holding unit is assigned a depth stop, with a desired screw-in depth of a fastening element arranged on the holding device being set via a thread formed between the first and second holding unit or via a guide groove and a locking pin which can be arranged in locking positions therein. A holding device with a depth stop can thus be provided in a simple manner.

The second holding unit is held in the parking position by the holding element. A secure and reliable arrangement of the second holding unit in the parked position can thus be made possible, as a result of which a one-handed tool change can be made possible.

A free axial end of an output shaft driving the tool holder preferably forms a stop surface for the holding element in the parking position. In this way, a stable and robust stop surface can be provided for the holding element, through which a secure arrangement in the parking position can be made possible.

According to one embodiment, one element forms a stop surface for the holding element in the parking position. An alternative stop surface for the holding element can thus be provided.

Brief description of the drawings

Fig. 1

eine schematische Ansicht einer Handwerkzeugmaschine mit einer Werkzeugaufnahme und einer Befestigungsschnittstelle,

Fig. 2

eine perspektivische Ansicht der Werkzeugaufnahme und der Befestigungsschnittstelle von Fig. 1,

Fig. 3

eine perspektivische Ansicht der Werkzeugaufnahme von Fig. 2 mit einer erfindungsgemäßen Haltevorrichtung,

Fig. 4

einen Längsschnitt durch die Werkzeugaufnahme mit der Haltevorrichtung von Fig. 3 in einer Arbeitsposition,

Fig. 5

einen Längsschnitt durch die Werkzeugaufnahme mit der Haltevorrichtung von Fig. 4 in einer Parkposition,

Fig. 6

eine perspektivische Ansicht der Haltevorrichtung von Fig. 3 bis Fig. 5 von einem zweiten axialen Ende aus betrachtet,

Fig. 7

eine perspektivische Ansicht einer weiteren Haltevorrichtung in der Arbeitsposition,

Fig. 8

einen Längsschnitt durch die Haltevorrichtung von Fig. 7 in einer Arbeitsposition,

Fig. 9

einen Längsschnitt durch die Haltevorrichtung von Fig. 8 in einer Parkposition,

Fig. 10

eine schematische Schnittansicht der Haltevorrichtung von Fig. 2 bis Fig. 4 mit einem Halteteil zum Fixieren der Haltevorrichtung an einer der Handwerkzeugmaschine von Fig. 1 zugeordneten Abtriebswelle,

Fig. 11

eine schematische Schnittansicht des Halteteils von Fig. 10 an einer weiteren Abtriebswelle,

Fig. 12

eine schematische Schnittansicht des Halteteils von Fig. 10 und Fig. 11 an einer alternativen Abtriebswelle,

Fig. 13

eine schematische Schnittansicht eines weiteren Halteteils an der Abtriebswelle von Fig. 12,

Fig. 14

eine schematische Schnittansicht eines alternativen Halteteils an der Abtriebswelle von Fig. 12 und Fig. 13,

Fig. 15

eine schematische Schnittansicht eines weiteren Halteteils an der Abtriebswelle von Fig. 11,

Fig. 16

eine schematische Schnittansicht des Halteteils von Fig. 15 an einem freien Ende der Abtriebswelle von Fig. 15,

Fig. 17

eine schematische Schnittansicht eines alternativen Halteteils an dem freien Ende der Abtriebswelle von Fig. 15,

Fig. 18

eine perspektivische Ansicht eines weiteren Halteteils,

Fig. 19

eine schematische Schnittansicht eines alternativen Halteteils an der Abtriebswelle von Fig. 15,

Fig. 20

eine schematische Schnittansicht eines weiteren Halteteils,

Fig. 21

eine perspektivische Ansicht einer weiteren Abtriebswelle,

Fig. 22

eine schematische Schnittansicht eines alternativen Halteteils zur Anordnung an der Abtriebswelle von Fig. 21,

Fig. 23

eine schematische Schnittansicht eines weiteren Halteteils zur Anordnung an der Abtriebswelle von Fig. 11,

Fig. 24

eine Seitenansicht und eine Draufsicht auf ein alternatives Halteteil,

Fig. 25

eine perspektivische Ansicht einer weiteren Abtriebswelle,

Fig. 26

eine perspektivische Ansicht eines alternativen Halteteils zur Anordnung an der Abtriebswelle von Fig. 25,

Fig. 27

eine Schnittansicht eines dem Halteteil von Fig. 26 zugeordneten Koppelelements,

Fig. 28

eine schematische Schnittansicht der Haltevorrichtung von Fig. 10 mit einem Tiefenanschlag,

Fig. 29

eine perspektivische Ansicht einer weiteren an der Abtriebswelle angeordneten Haltevorrichtung mit einem alternativen Tiefenanschlag,

Fig. 30

eine schematische Schnittansicht der Haltevorrichtung mit einem alternativen Tiefenanschlag von Fig. 29,

Fig. 31

ein schematischer Ausschnitt einer dem Tiefenanschlag von Fig. 29 und Fig. 30 zugeordneten Verzahnung,

Fig. 32

eine perspektivische Ansicht einer weiteren Haltevorrichtung in der Arbeitsposition,

Fig. 33

eine Seitenansicht der Haltevorrichtung von Fig. 32 mit einem Befestigungselement,

Fig. 34

eine perspektivische Ansicht der Haltevorrichtung von Fig. 32 und Fig. 33 in der Parkposition,

Fig. 35

einen perspektivischen Längsschnitt durch die Haltevorrichtung von Fig. 32 bis Fig. 34 in der Arbeitsposition, mit einem Halteelement gemäß einer ersten Anordnung,

Fig. 36

eine Explosionszeichnung der Haltevorrichtung von Fig. 32 bis Fig. 35,

Fig. 37

eine perspektivische Vorderansicht einer der Haltevorrichtung von Fig. 32 bis Fig. 35 zugeordneten ersten Halteeinheit,

Fig. 38

eine Vorderansicht der ersten Halteeinheit von Fig. 37,

Fig. 39

einen perspektivischen Längsschnitt durch die auf der Abtriebswelle von Fig. 10 angeordnete erste Halteeinheit von Fig. 37 und Fig. 38,

Fig. 40

einen perspektivischen Längsschnitt durch die Haltevorrichtung von Fig. 32 bis Fig. 39 in der Arbeitsposition mit einem Halteelement gemäß einer zweiten Anordnung,

Fig. 41

einen perspektivischen Längsschnitt durch die Haltevorrichtung von Fig. 40 mit einem Befestigungselement,

Fig. 42

einen Längsschnitt durch die Haltevorrichtung mit dem Befestigungselement von Fig. 41,

Fig. 43

einen perspektivischen Längsschnitt durch die Haltevorrichtung mit dem Befestigungselement von Fig. 40 bis Fig. 42 in der Parkposition,

Fig. 44

einen Längsschnitt durch die Haltevorrichtung von Fig. 43,

Fig. 45

eine Explosionszeichnung der Haltevorrichtung von Fig. 32 bis Fig. 44 mit einem Halteelement gemäß einer dritten Anordnung, und

Fig. 46

einen Längsschnitt durch die Haltevorrichtung von Fig. 45.

The invention is explained in more detail in the following description on the basis of exemplary embodiments illustrated in the drawings. Show it:

1

a schematic view of a hand tool with a tool holder and a mounting interface,

2

FIG. 14 is a perspective view of the tool holder and mounting interface of FIG 1 ,

3

a perspective view of the tool holder of FIG 2 with a holding device according to the invention,

4

a longitudinal section through the tool holder with the holding device of 3 in a working position,

figure 5

a longitudinal section through the tool holder with the holding device of 4 in a parking position,

6

a perspective view of the holding device of FIG Figures 3 to 5 viewed from a second axial end,

7

a perspective view of another holding device in the working position,

8

a longitudinal section through the holding device of 7 in a working position,

9

a longitudinal section through the holding device of 8 in a parking position,

10

a schematic sectional view of the holding device of FIG Figures 2 to 4 with a holding part for fixing the holding device to one of the hand-held power tools from 1 assigned output shaft,

11

a schematic sectional view of the holding part of FIG 10 on another output shaft,

12

a schematic sectional view of the holding part of FIG 10 and 11 on an alternative output shaft,

13

a schematic sectional view of a further holding part on the output shaft of 12 ,

14

a schematic sectional view of an alternative holding part on the output shaft of 12 and 13 ,

15

a schematic sectional view of a further holding part on the output shaft of 11 ,

16

a schematic sectional view of the holding part of FIG 15 at a free end of the output shaft from 15 ,

17

a schematic sectional view of an alternative holding part at the free end of the output shaft of FIG 15 ,

18

a perspective view of another holding part,

19

a schematic sectional view of an alternative holding part on the output shaft of 15 ,

20

a schematic sectional view of another holding part,

21

a perspective view of another output shaft,

22

a schematic sectional view of an alternative holding part for arrangement on the output shaft of 21 ,

23

a schematic sectional view of a further holding part for arrangement on the output shaft of 11 ,

24

a side view and a top view of an alternative holding part,

25

a perspective view of another output shaft,

26

a perspective view of an alternative holding part for arrangement on the output shaft of 25 ,

27

a sectional view of the holding part of FIG 26 associated coupling element,

28

a schematic sectional view of the holding device of FIG 10 with a depth stop,

29

a perspective view of another holding device arranged on the output shaft with an alternative depth stop,

30

a schematic sectional view of the holding device with an alternative depth stop of 29 ,

31

a schematic section of the depth stop of 29 and 30 assigned toothing,

32

a perspective view of another holding device in the working position,

Figure 33

a side view of the holding device of FIG 32 with a fastener,

34

a perspective view of the holding device of FIG 32 and 33 in the parking position,

Figure 35

a perspective longitudinal section through the holding device of 32 to 34 in the working position, with a holding element according to a first arrangement,

Figure 36

an exploded drawing of the holding device from 32 to 35 ,

37

a perspective front view of one of the holding device of 32 to 35 associated first holding unit,

38

a front view of the first holding unit of 37 ,

Figure 39

a perspective longitudinal section through the on the output shaft of 10 arranged first holding unit of 37 and 38 ,

figure 40

a perspective longitudinal section through the holding device of 32 to 39 in the working position with a holding element according to a second arrangement,

Figure 41

a perspective longitudinal section through the holding device of figure 40 with a fastener,

Figure 42

a longitudinal section through the holding device with the fastener of Figure 41 ,

Figure 43

a perspective longitudinal section through the holding device with the fastening element of 40 to 42 in the parking position,

Figure 44

a longitudinal section through the holding device of Figure 43 ,

Figure 45

an exploded drawing of the holding device from 32 to 44 with a holding element according to a third arrangement, and

Figure 46

a longitudinal section through the holding device of Figure 45 .

Description of the exemplary embodiments

1 shows an exemplary handheld power tool 100 that has a tool housing 105 with a handle 115 . According to one specific embodiment, hand-held power tool 100 can be mechanically and electrically connected to a battery pack 190 for mains-independent power supply and is designed, for example, as a cordless drill/driver, but can alternatively also be operated mains-dependent, for example. However, the present invention is not limited to cordless drills, but rather can be used in different handheld power tools in which an insert tool is rotated, e.g. in a screwdriver or cordless screwdriver, etc.

At least one electric drive motor 180 supplied with power by the battery pack 190 is preferably arranged in the tool housing 105 . Optionally, a gear 109 is arranged in the tool housing 105, to which a torque clutch 199 is optionally assigned. The drive motor 180 can be switched on and off, for example using a manual switch 195, and can be any type of motor, for example an electronically commutated motor or a DC motor. Drive motor 180 is preferably connected via gear 109 to a drive shaft 120 , for example a drive spindle, and drives this drive shaft 120 in rotation, preferably via gear 109 , when hand-held power tool 100 is in operation. The gear 109 and the drive motor are preferably here 180 in a transmission housing 110 or a motor housing 185, which are illustratively arranged separately from one another in the tool housing 105. It is pointed out that the drive motor 180 and the gear 109 can also be arranged directly in the tool housing 105 .

According to one specific embodiment, hand-held power tool 100 is assigned a tool holder 140 for receiving an insert tool 170, in particular a screwdriver bit. The tool holder 140 has, for example, a bit holder 145 and is arranged in the area of an end face 112 of the tool housing 105 or of the gear housing 110 . The bit holder 145 is preferably made of stainless steel in order to avoid field lines of one of the holding devices according to the invention (300 in 3 ) associated magnet (330 in 3 ) not to be absorbed. However, the bit holder can also have any other material, eg steel.

A magnet is preferably assigned to the bit holder 145 in order to hold the screwdriver bit 170 . Such a magnet is preferably not sufficient to hold a screw element (270 in 2 ) to magnetize and thus also to hold.

2 shows the tool holder 140 of the hand-held power tool 100 from FIG 1 , wherein the drive shaft 120 is operatively connected to an output shaft 224 of the handheld power tool 100 or is formed in one piece therewith. The tool holder 140 or the bit holder 145 is preferably formed on the output shaft 124 . The bit holder 145 preferably and illustratively has a receiving body 247 with a polygonal socket 248 and an outer circumference 249 . The internal polygonal socket 248 is designed to accommodate tools 170 with external polygonal couplings, in particular a screwdriver bit 170, which is why the tool insert 170 is referred to below as “screwdriver bit 170” for the sake of simplicity and clarity. The screwdriver bit 170 is preferably designed for screwing in and/or unscrewing a fastening element 270, in particular a screw element.

On its outer circumference 249, receiving body 247 preferably has a receiving area 289 facing hand-held power tool 100, which extends in the direction of the free end of output shaft 224 into a holding area 286 transforms. The receiving area 289 preferably has a larger diameter than the holding area 286 . The holding area 286 is delimited in the direction of the free end of the output shaft 224 by a shoulder 284 preferably designed as an annular ridge, with the annular ridge 284 preferably having a larger diameter than the holding area 286 . A further receiving area 282 is preferably arranged between the annular web 284 and the free end of the output shaft 224 .

In the area of the bit holder 145 or the tool holder 140, a fastening interface 250, also referred to below as the “machine interface”, is preferably provided. The machine interface 250 is preferably used to attach an interchangeable tool attachment (300 in 3 ). Illustratively, the machine interface 250 has an annular fastening device 258 with an outer circumference 259 and an inner circumference 257 that is secured against rotation on an end face 112 of the housing 110 on the transmission housing 119 or the housing 110 , preferably at least in sections. This encases the bit holder 145 at least in sections, for example, with a predetermined radial spacing.

On the outer circumference 259 of the fastening device 258, a large number of groove-like receptacles 252, 254 are provided, which preferably form an angular position device 260 and are designed to receive at least one and preferably a large number of angle adjustment elements. The groove-like receptacles 252, 254 are, for example, aligned in the longitudinal direction of the machine interface 150, i.e. in the direction of an arrow 299. The groove-like receptacles 252, 254 are preferably formed by projections aligned axially in the direction of the arrow 299, of which only one is provided with the reference numeral 253 for the sake of clarity and clarity of the drawing.

The fastening device 258 is preferably arranged on the end face 112 of the housing 110 via at least one and illustratively three fastening elements 262, 264, 266. The fastening elements 262, 264, 266 are preferably designed in the manner of rivets or screws.

3 shows the handheld power tool 100 from FIG 2 with a tool attachment 300 according to the invention, which is designed as a holding device and is referred to below as "holding device 300". The holding device 300 is designed to hold the fastening element 270, in particular a screw element. Holding device 300 preferably has a first holding unit 310 for fixing holding device 300 to hand-held power tool 100 and a second holding unit 320 for holding fastening element 270, in particular the screw element. The first holding unit 310 is preferably designed to enable a detachable attachment of the holding device 300 to the output shaft 224 of the hand-held power tool 100 that drives the tool holder 140 .

To hold the screw element 270, at least in the working position, and/or in the axial direction 299 of the holding device 300, the second holding unit 320 has at least one holding element 330, in particular a magnet. The at least one magnet 330 is preferably designed as a ring magnet. The ring magnet 330 preferably has an interior receptacle 335 which is designed in such a way that the screwdriver bit 170 can be arranged in the interior receptacle 335 . However, a screw head of screw element 270 that can be arranged on screwdriver bit 170 can only be arranged in sections in interior receptacle 335 . However, it is pointed out that the magnet 330 can also be formed from ring segments. Furthermore, several magnets for holding the screw element 270 can also be assigned to the second holding unit 320 . The magnets can also have any other shape, e.g. a square shape. Additionally, the output shaft 224 may be made of magnetic steel. It is pointed out that the magnet 330 is essentially not designed to magnetize the screwdriver bit 170 . The magnet 330 embodied as a ring magnet is preferably embodied in such a way that a north pole of the magnet 330 is arranged in the direction of the screw element 270 and a south pole in the direction of the output shaft 224, or vice versa.

The second holding unit 320 is arranged on the first holding unit 310 so that it can move axially, it being possible for the second holding unit 320 to be arranged in a working position and a parking position. In 3 the second holding unit 320 is arranged in the working position.

The holding device 300, preferably the first and second holding units 310, 320, is preferably made of plastic, at least in sections. The first and second holding unit 310, 320 are preferably designed as an injection molded part. However, it is pointed out that the holding device 300 can also comprise a different material, for example steel, aluminum or any other cast material.

4 shows the holding device 300 from FIG 3 , having a first end 404 facing hand-held power tool 100 and an opposite free end 402. First holding unit 310 can preferably be connected to output shaft 224 driving tool holder 140. In this case, the first holding unit 310 is preferably arranged on the output shaft 224 in such a way that rotary entrainment takes place up to a predetermined torque value. The specified torque value is preferably 0.1 Nm. If this torque value is exceeded, e.g. by holding the holding device 300 during a screwing process, the rotary driver is released and the holding device 300 no longer rotates with the output shaft 224. However, the screwdriver bit 170 rotates further with the screw element 270, since the magnet 330 is not aligned in such a way that it further holds the screw element 270 in place, since the magnet 330 is preferably configured only for holding the screw element 270 axially and not for holding it radially.

The first holding unit 310 preferably has a conical section 411 and a cylindrical section 413 adjoining the conical section 411 . The conical section 411 is preferably arranged on a side of the first holding unit 310 facing the hand-held power tool 100 . Conical section 411 preferably forms a transition section from a diameter of fastening device 258 assigned to hand-held power tool 100 to a diameter assigned to holding device 300 . The conical section 411 preferably also prevents the fastening device 258 from getting dirty and/or damaged or dirt, sawdust, etc. from penetrating into the interior of the hand-held power tool 100. It is pointed out that the design of the section 411 of the first holding unit 310 only exemplary is conical. The section 411 can also have any other shape, for example in the manner of a hemisphere. In addition, the cylindrical section 413 can also optionally be omitted, with section 411 having a guide for the second holding unit 320 .

Furthermore, the first holding unit 310 is preferably assigned an annular base body 412 which is preferably arranged within the conical section 411 . Preferably, the annular body 412 is integral with the tapered portion 411, but may also be mechanically attached thereto. The two sections 411 and 413 can also be designed in the manner of a housing, in which the annular base body 412 is arranged or pressed in the manner of a receiving sleeve. The ring-shaped base body 412 is preferably designed for arranging the holding device 300 on the output shaft 224 . When the holding device 300 is mounted on the hand-held power tool 100 or the output shaft 224, the annular base body 412 with its interior receptacle (522 in 6 ) arranged on the receiving area 289 of the output shaft 224.

For the detachable arrangement of the holding device 300 on the output shaft 224, the first holding unit 310 preferably has at least one holding part 490. The at least one holding part 490 is preferably designed to form a form fit and/or a non-positive fit with output shaft 224. In this case, holding part 490 preferably forms the non-positive and/or positive connection with shoulder 284, which is configured as an annular web and is assigned to output shaft 224, and/or a recess (912 in 11-14 ) out of. The at least one holding part 490 is preferably embodied in one piece with the first holding unit 310, fastened to the first holding unit 310, or in a receptacle assigned to the first holding unit 310 (1007 in 13 and 14 ; 1131 in 16 and 17 ; 1164 in 19 ; 1195 in 25 ) arranged.

The first holding unit 310 preferably has a plurality of holding parts 490, preferably four holding parts 490, with 4 only two holding parts 490 are shown. However, it is pointed out that the design of the first holding unit 310 with four holding parts 490 is merely exemplary in nature and should not be seen as a limitation of the present invention. Thus, the first holding unit 310 can have any number of holding parts 490 .

According to one embodiment, the at least one holding part 490 is designed in the manner of a snap hook 414. The four snap hooks 414, for example, are preferably arranged on the base body 412 of the first holding unit 310, but can also be arranged on another element assigned to the first holding unit 310 or be attached to it via a connection. In addition, the snap hook 414 can also be designed as a formed sheet metal part.

In addition, the ring-shaped base body 412 of the first holding unit 310 preferably has an interior receptacle 499 . At least one spring element 410 for loading the second holding unit 320 into the working position is preferably arranged in the interior receptacle 499 . The spring element 410 is preferably arranged between the end of the inner receptacle 499 facing the first axial end 404 of the holding device 300 and the end of the second holding unit 320 facing the first axial end 404 .

Furthermore, the cylindrical section 413 of the first holding unit 310 preferably has an interior receptacle 417, which preferably widens in the direction of an end 402 of the holding device 300 facing the handheld power tool 100 via a contact edge 418 into a guide section 416. The guide section 416 preferably has a larger diameter than the inner receptacle 417 , the diameter of the guide section 416 being associated with a limiting element 438 associated with the second holding unit 320 . The standing edge 418 is preferably designed to limit a movement of the second holding unit 320 in the direction of the free end 402 of the holding device 300 .

In addition, clarified 4 the second holding unit 320 arranged in the working position. The second holding unit 320 preferably has an approximately cylindrical base body 431 . The second holding unit 320, or the cylindrical base body 431, preferably has an outer diameter associated with the inner receptacle 417 of the first holding unit 310. In addition, the second holding unit 320 preferably has an interior receptacle 432 which is designed to be guided on the output shaft 224 , in particular on the receptacle area 282 formed at the free end of the output shaft 224 . To the at least one delimiting element 438 is preferably formed at the end of the second holding unit 320 that faces the first end 402 of the holding device 300. Four limiting elements 438 are preferably arranged along the circumference of the cylindrical base body 431 . However, the at least one delimiting element 438 can also be embodied as a peripheral collar. The delimiting elements 438 are preferably designed to be spring-elastic, so that simple assembly can take place. During assembly, the delimiting elements 438 are acted upon in the radial direction inwards and can thus be arranged in the guide section 416 through the inner receptacle 417 .

The second holding unit has a receptacle 436 for arranging the magnet 330 . The receptacle 436 is preferably formed in the cylindrical base body 431 . The magnet 330 is preferably arranged in the receptacle 436 via a clamp connection and/or via a material connection. The magnet 330 is preferably glued into the receptacle 436 . According to one embodiment, the receptacle 436 is arranged at a free end 403 of the second holding unit 320 . In 4 the receptacle 436 is formed at the free end 403, the magnet 330 being arranged in the receptacle 436 in such a way that a side of the magnet 330 facing the free end 403 and the second holding unit 320 form a planar surface. The interior receptacle 432 of the second holding unit 320 preferably has a holding section 434 on which the magnet 330 rests on its side facing away from the free end 403 . The holding section 434 is preferably designed as an annular wall 434 . The annular wall 434 preferably prevents movement of the magnet 330 in the direction of the first axial end 404 of the holding device 300. An adhesive is preferably only arranged in the area of the receptacle 436 and preferably not in the area of the annular wall 434. In addition, the magnet 330 can also be placed in the Receptacle 436 may be pinched.

In figure 4 the second holding unit 320 is arranged in the working position in which, as described above, the at least one spring element 410 acts on the second holding unit 320. In the working position, the delimiting element 438 of the second holding unit 320 is preferably in contact with the standing edge 418 of the first holding unit 310 .

figure 5 shows the holding device 300 of FIG 4 in the parking position. In the parking position, the second holding unit 320 is preferably arranged displaced in the direction of the first end 404 of the holding device 300, or illustratively to the left. In this case, the second holding unit 320 is preferably arranged inside the first holding unit 310 . The second holding unit 320 is preferably displaced manually by a user of the hand-held power tool 100. The spring element 410 is compressed in the process. The screwdriver bit 170 arranged in the interior receptacle 248 preferably protrudes beyond the free axial end 403 of the second holding unit 320 in the parked position of the second holding unit 320. The second holding unit 320 is preferably held by the magnet 330 in the parked position.

6 shows the holding device 300 of FIG Figures 3 to 5 in the working position viewed from the first end 404 . This makes it clear 6 the first holding unit 310 with the conical section 411 and the ring-shaped base body 412. The base body 412 illustratively has four recesses 512. The base body 412 preferably has a number of recesses 512 corresponding to a number of delimiting elements 438 of the second holding unit 320 . In the parking position, the delimiting elements 438 are preferably arranged in the recesses 512 . In addition, clarified 6 an inner circumference 522 of the base body 412, the inner circumference 522 being able to be arranged on the output shaft 224.

7 shows the holding device 300 of FIG Figures 3 to 5 , which has at least one, preferably four, illustratively three, actuating elements 612 for moving the second holding unit 320 into the parking position. The second holding unit 320 preferably has the actuating elements 612 for manually adjusting the second holding unit 320 from the working position to the parking position, or vice versa. The actuating elements 612 are preferably arranged on the outer circumference of the second holding unit 320 . In this case, the actuating elements 612 are preferably designed as radial extensions 614 of the second holding unit 320 . In order to arrange the second holding unit 320 in the parking position, the first holding unit 310 or the cylindrical section 413 of the first holding unit 310 preferably has recesses 622 assigned to the actuating elements 612 .

8 shows the holding device 300 of FIG 7 in the working position, wherein the second holding unit 320 is not acted upon by the spring element 410 in the working position. An embodiment without a spring element 410 is possible since the magnetic force between the magnet 330 and the screw element 270 holds the second holding unit 320 in the working position when a threshold value is reached. The second holding unit 320 has in FIG 8 shown embodiment at its end facing the first end 404 of the holding device 300 end an axial extension 712. The axial extension 712 is preferably designed as a cylindrical extension. The interior receptacle 499 of the first holding unit 310 is preferably designed as a guide 725 of the axial extension 712, with the axial extension 712 being arranged in the guide 725 in a displaceable manner. Analogously to the holding device 300 from FIG 4 the delimiting element 438 is in the in 8 shown working position of the second holding unit 320 at the standing edge 418 of the first holding unit 310.

9 shows the holding device 300 of FIG 7 and 8 in the parking position. In this case, the second holding unit 320 can be held in place by manual displacement by a user or by actuation of the actuating elements 612 by 7 arranged in the direction of the first end 404 of the holding device 300 within the first holding unit 310 . An illustrative left-hand end of the axial extension 712 rests on an illustrative left-hand end of the interior receptacle 499 or the guide 725 of the first holding unit 310.

10 shows the holding device 300 of FIG Figures 3 to 6 with the holding part 490 embodied as a snap hook 414, for example, in the working position. As described above, snap hooks 414 form a non-positive and/or positive connection with output shaft 224 or with annular web 284 assigned to output shaft 224. First holding unit 310 or a side of the first holding unit facing hand-held power tool 100 is also located 310, on an annular web 812 assigned to the output shaft 224. The snap hooks 414 preferably press the first holding unit 310 against the annular web 812.

In the working position of the second holding unit 320 , a side 830 of the screw element 270 arranged on the holding device 300 that faces the magnet 330 preferably lies on a side that faces the screw element 270 Page 829 of the magnet 330. Screw element 270 is thus at least approximately magnetized and is thus held on holding device 300 at least in axial direction 299 .

11 shows the first holding unit 310 of FIG 3 to 9 on the output shaft 224. The output shaft 224 preferably has a recess 912 between the receiving area 289 and the annular web 284. The puncture 912 is in 11 preferably rectangular, but can have any shape. The holding part 490 preferably forms the non-positive and/or positive connection with the recess 912. Furthermore, according to the embodiment shown, the interior receptacle 432 is assigned to the first holding unit 310 . The interior shot 432 is in 11 arranged on the receiving area 282 of the output shaft 224 .

12 shows the first holding unit 310 of FIG 11 , wherein the output shaft 224 identifies a recess 912 according to another embodiment. The indentation 912 is preferably designed as a trapezoidal indentation. Analogous to 11 the holding part 490 preferably forms the non-positive and/or positive connection with the recess 912.

13 shows the first holding unit 310 on the output shaft 224 of FIG 12 or with the puncture 912. According to a further embodiment, the first holding unit 310 has a receptacle 1007. The receptacle 1007 is preferably formed in the radial direction of the output shaft 224 and preferably has at least one, illustratively two, constriction sections 1008 on its open end facing the output shaft 224 . The holding part 490 is in 13 designed in the manner of a spring-loaded loading element 1004. Illustratively, the impinging element 1004 is designed in the manner of a sphere, but can also have any other shape, for example a rectangle.

The loading element 1004 and a spring element 1002 loading the loading element 1004 are arranged in the receptacle 1007 . The spring element 1002 acts upon the urging element 1004 out of the receptacle 1007 or into the recess 912 and thus fixes the holding device 300 on the output shaft 224. The illustrative two constriction sections 1008 prevent the actuating element 1004 from falling out of the receptacle 1007.

14 shows the output shaft 224 with the recess 812 of 12 and 13 and a holding part 490, which is preferably designed in the manner of a holding spring 1110. The retaining spring 1110 is preferably designed as a c-shaped clip. Furthermore clarified 14 the arrangement of the retaining spring 1110 in the receptacle 1007 of the first retaining unit 310. When the retaining device 300 is mounted on the output shaft 224, the retaining spring 1110 is arranged on the output shaft 224 or the recess 912, with an outer circumference of the retaining spring 1110 in the receptacle 1007 is arranged.

15 shows the free end of the output shaft 224 with the annular web 284 and the receiving area 282, the first holding unit 310 being arranged on the output shaft 224 by a holding part 490 according to a further embodiment. in the in 15 In the embodiment shown, the output shaft 224 is preferably made of ferromagnetic steel and the holding part 490 is preferably designed in the manner of a magnet 1122. The magnet 1122 is preferably designed as a ring magnet 1121 . The annular magnet 1121 is preferably arranged on the receiving area 282 of the output shaft 224, preferably between the annular web 284 of the output shaft 224 and a side 1124 of the receptacle 1007 of the first holding unit 310 that faces the free end of the output shaft 224. The receptacle 1007 is designed in such a way that that the diameter is larger than the diameter of the annular ridge 284, so that the annular ridge 284 can be arranged within the receptacle 1007.

16 shows the output shaft 224 of FIG 15 , wherein the magnet 1122, which is preferably designed as a ring magnet 1121, is arranged at the free end of the output shaft 224. In this case, the ring magnet 1121 is arranged in front of, or illustratively to the right of, the interior receptacle 248 for arranging an insertion tool 170 . The first holding unit 310 preferably has a receptacle 1131 for arranging the ring magnet 1121 in front of the interior receptacle 248 . In this case, the receptacle 1131 is arranged, for example, on a side facing the free end 402 of the holding device 300 . In this case, the receptacle 1131 preferably has a larger diameter than the inner receptacle 432. In addition, the ring magnet 1121 preferably has an interior receptacle 1132 for arranging the screwdriver bit 170 at least in sections. The holding part 490, here in 16 the ring magnet 1121, for holding the holding device 300 and the screw element 270 may be designed.

17 shows the output shaft 224 of FIG 16 , wherein the holding part 490 is designed in the manner of a magnet 1122, preferably with at least one guide sleeve 1141. The magnet 1122, which is preferably designed as a ring magnet 1121, is assigned at least one, illustratively two, guide sleeves 1141, with the ring magnet 1121 preferably being arranged between the two guide sleeves 1141. The guide sleeves 1141 are preferably arranged in the receptacle 1131 of the first holding unit 310 and, analogous to the ring magnet 1121, have an internal receptacle 1142 for the at least partial arrangement of the screwdriver bit 170. Illustratively, the two guide sleeves 1141 have different lengths, it also being possible for the guide sleeves 1141 to be of the same length. The guide sleeves 1141 are preferably ferromagnetic in order to conduct a magnetic flux to the holding device 300 and to the screw element 270 held by the holding device 300 . A distance from the output shaft 224 and/or from the screw element 270 can be determined by the length of the guide sleeves 1141, as a result of which a desired holding force can be set.

18 shows the first holding unit 310 of FIG 3 to 9 , which according to a further embodiment is provided with at least one holding part 490 which is designed in the manner of a loading part 1154. The first holding unit 310 preferably has a cylindrical base body 1152 with an interior receptacle 1153 . At least one, preferably a plurality, illustratively six holding parts 490 embodied as loading parts 1154 are arranged on the interior receptacle 1153 . The application parts 1154 are designed in the manner of a rib to form a press fit with the output shaft 224 . The loading parts 1154, or the ribs 1154 in the interior receptacle 1153, are preferably formed radially inwards. The first holding unit 310 is preferably made of an elastic or rubber-like material. Thus, the first holding unit 310 can be pushed onto the output shaft 224 and through the press fit between the first holding unit 310, the holding part 490 and the output shaft 224 preferably creates the adhesive force.

19 shows the output shaft 224 of FIG Figures 15 to 17 with the first holding unit 310 of FIG 3 to 9 . The first holding unit 310 has a receptacle 1164 for arranging a holding part 490 embodied as a loading part 1154 . The applying part 1154 is analogous to 18 formed from an elastic material, preferably as a rubber ring. The rubber ring 1154 is preferably pressed into the receptacle 1164 in order to prevent it from falling out. The rubber ring 1154 preferably protrudes in sections from the receptacle 1164 and thus forms the press fit with the output shaft 224 or its receptacle area 282 .

20 shows the first holding unit 310 of FIG 3 to 9 , which are analogous to the first holding unit 310 of FIG 18 has a cylindrical base body with the interior receptacle 432, the at least one holding part 490 being arranged on the interior receptacle 432. The first holding unit 310 is preferably analogous to FIG 18 made of an elastic material. Preferably, the at least one holding part 490 is designed as an application part 1172, wherein the application part 1172 in comparison to the application part 1154 of 18 is formed only in sections in the longitudinal direction 1175 of the first holding unit 310 . In addition, a plurality of urging parts 1172 are arranged in the circumferential direction of the first holding unit 310 .

According to the embodiment shown, the urging parts 1172 for forming the press fit with the output shaft 224 are preferably designed in the manner of splines 1174 . The wedges 1172 are designed to engage in corresponding grooves (1182 in 21 ) formed, which are formed on the output shaft 224. The wedges 1174 are preferably arranged on the inner receptacle 432 in such a way that a respective tip of the wedge 1174 faces the hand-held power tool 100 when it is mounted on the output shaft 224 . Illustratively, the wedges 1174 are formed integrally with the first holding unit 310, however, the wedges 1174 can be analogous to 19 into the first holding unit 310 be pressed in. Furthermore, the plurality of wedges 1174 can also be combined as a ring and pressed into the first holding unit 310 .

21 12 shows the output shaft 224 of FIG 2 with longitudinal grooves 1182. The output shaft 224 preferably has at least one longitudinal groove 1182, preferably a plurality of longitudinal grooves 1182 and preferably a number of longitudinal grooves assigned to the number of actuating parts 1172. To arrange a first holding unit 310 on the output shaft 224 , the first holding unit 310 is pushed onto the output shaft 224 . Alternatively or optionally, the output shaft 224 has interruptions or grooves 1184 . The interruptions or grooves 1184 are designed as indentations in the webs formed by the longitudinal grooves 1182 . The wedge 1172 is designed to engage in corresponding grooves 1182, 1184, which are formed on the output shaft 224

22 shows the first holding unit 310 of FIG 20 with the interior receptacle 432 on which the at least one holding part 490 is arranged. Preferably, the at least one holding part 490 is configured as an application part 1172, wherein the application part 1172 in comparison to the application parts 1172 designed as wedges in FIG 20 is formed in the radial or tangential direction 1176 of the first holding unit 310 . In this case, the wedges 1174 are arranged as ring sections on the inner receptacle 432 . Illustratively, the wedges 1172 are formed integrally with the first holding unit 310, however, the wedges 1172 can be analogous to 19 also be pressed into the first holding unit 310 . Furthermore, the plurality of wedges 1172 can also be combined as a ring and pressed into the first holding unit 310 . The wedges 1172 are designed to engage in corresponding grooves 1184 of the output shaft 224 . When mounting the first holding unit 310 on the output shaft 224 of 21 the first holding unit 310 is first pushed onto the output shaft 224 in the longitudinal direction and then rotated in the circumferential direction. When rotating in the circumferential direction, the wedges 1172 are then arranged in the area of the interruptions 1184 of the output shaft 224 and form the press fit there.

23 shows the first holding unit 310 of FIG 3 to 9 with a holding part designed as a magnet 490. The magnet 1194 is preferably embodied as a ring magnet and is arranged on a side of the holding device 300 that faces the hand-held power tool 100. However, the magnet 1194 can also be formed from ring segments. In order to arrange the magnet 1194 on the end face of the holding device 300 or the first holding unit 310 facing the handheld power tool 100 , the latter has a receptacle 1195 on its end face facing the handheld power tool 100 . In this case, the magnet 1194 forms a magnetic flux with the fastening device 258 of the hand-held power tool 100 . For this purpose, the fastening device 258 is preferably made of a ferromagnetic material.

Fastening device 258 preferably does not rotate with output shaft 224 and thus holding device 300 does not rotate with output shaft 224 either. It is therefore necessary for the holding device 300 or the first holding unit 310 to be mounted on the output shaft 224 . A plain bearing is preferably arranged between the first holding unit 310 and the output shaft 224, wherein a material pairing of the materials of the two elements is to be selected such that sliding between the output shaft 224 and the first holding unit 310 is possible. However, the storage mentioned is in 23 not shown. In addition, the first holding unit 310 has a recess 1192 in the area of the holding area 286 of the output shaft 224, in which the output shaft 224 can rotate.

24 shows the first holding unit 310 of FIG 3 to 9 , which is analogous to the first holding unit 310 of FIG 24 has holding parts 490 on its end face. The holding parts 490 are preferably designed in the manner of coupling elements 1211 which form a coupling contour 1210 . The coupling elements 1211 are preferably trapezoidal and have an elastic material. The coupling elements 1211 form a fixation with the fastening device 258 of the hand-held power tool 100, which is preferably embodied as a clamp connection. For this purpose, the coupling elements 1211 are arranged in the groove-like receptacles 252, 254 of the fastening device 258 and jam there.

25 12 shows the alternative embodiment fastener 258 of FIG 2 of the hand tool machine 100 of 1 , wherein the projections 253 of the fastening device 258 are formed as undercuts, which are connected to a coupling element 1211 of 26 form a bayonet connection. For this purpose, the first holding unit 310 of 26 in the direction of an arrow 1222, or in the longitudinal direction of the fastening device 258, and preferably by means of a rotary movement in the circumferential direction, the coupling elements 1211 are clamped in the direction of an arrow 1221 under the undercut 253 of the fastening device 258.

26 shows the one with the fastening device 258 of FIG 25 a bayonet connection forming first holding unit 310 of FIG 3 to 9 , which is formed according to a further embodiment. The first holding unit 310 has the coupling contour 1210 with the coupling elements 1211 on its end face facing the hand-held power tool 100 . The coupling elements 1210 have an illustrative and preferably rectangular base body 1225 with a recess 1227, the coupling elements 1210 for arrangement on undercuts of the fastening device 258 of 25 are trained.

27 shows the coupling element 1210 of FIG 26 in the direction of an arrow 1226 or viewed from below. This makes it clear 27 an exemplary configuration of the recess 1227 of the coupling element 1210, or of the preferably rectangular base body 1225. It is pointed out that the base body 1225 of the coupling element 1210 can also have a different shape.

In addition, it is pointed out that the 23 to 27 shown embodiments of attachment of the holding device 300, or the first holding unit 310, on the hand tool 100 of 1 , or the fastening device 258, also with the embodiments of the fastening of the holding device 300 on the output shaft 224 of Figures 4 to 22 can be combined. With a combination of the two forms of attachment, however, storage is necessary since the holding device 300 cannot rotate with the output shaft 224 when it is attached to the attachment device 258 . Furthermore, the individual embodiments of the attachment of the holding device 300 to the output shaft 224 can also be combined with one another.

28 shows the holding device 300 with the first and second holding unit 310, 320 of FIG 4 with the holding part 490 designed as a snap hook 414. A depth stop 1230 is preferably assigned to the second holding unit 320, which sets a desired screwing-in depth of the screw element 270 arranged on the holding device 300. The depth stop 1230 also allows a screw element 270 to be screwed in deeper than the surface of a workpiece. This is typically the case with a workpiece made of wood.

The screw-in depth can be adjusted via a thread 1233, 1234 formed between the first and second holding unit 310, 320. An internal thread 1234 is preferably assigned to the first holding unit 310 and an external thread 1233 is assigned to the second holding unit 320 . Furthermore, the second holding unit 320 preferably has a receptacle 1231 with a fixing element 1232 arranged therein. The fixing element 1232 is preferably designed as a rubber ring. This preferably increases the friction when turning the thread 1233, 1234, so that an inadvertent adjustment of the set screw-in depth can be prevented.

29 shows the output shaft 224 of FIG 2 with a depth stop 1230 according to another embodiment. The holding device 300, preferably the first holding unit 310, has a guide groove 1242 with locking positions formed therein, a locking pin 1244 assigned to the second holding unit 320 being arranged in the guide groove 1242.

30 shows the holding device 300 with the depth stop 1230 from FIG 29 . This makes it clear 30 the locking pin 1244 arranged in the guide groove 1242. In addition, the second holding unit 320 has an actuating element 1249 for setting the desired screw-in depth. For this purpose, a detent spring 1247 assigned to the second holding unit 320 engages with a toothing 1246 assigned to the first holding unit 310 . Actuation of the actuating element 1249 releases the detent spring 1247 and a desired screw-in depth can be set by rotating the second holding unit 320 . When the screw member 270 is sunk into a workpiece, the second holding unit 320 is slid toward the rearward position until the locking pin 1244 strikes the guide groove 1242, thereby defining the depth stop 1230.

31 shows the teeth 1246 of the first holding unit 310 with the detent spring 1247 of the second holding unit 320 of FIG 30 in the direction of an arrow 1241 from 30 considered, or viewed from the front. This makes it clear 31 the arrangement of the detent spring 1247 in the toothing 1246. The detent spring 1247 has a counter-contour 1248 of the toothing 1246 for this purpose.

32 shows the holding device 300 of FIG 30 with the second holding unit 320 associated actuating elements 612, which in associated recesses 622 of the first holding unit 310 of 7 can be arranged in the working position. In this case, the recesses 622 are preferably formed between two adjacent webs 1320 . The webs 1320 preferably each have the guide section 1324 facing the recesses 622 and the actuating elements 612 preferably have a guide groove 1322 on their sides facing the webs 1320 . Preferably, the guide portions 1324 and the guide grooves 1322 are designed to slide easily.

Figure 33 shows the holding device 300 of FIG 32 with the screw element 270. This clarifies Figure 33 the webs 1320 with the guide sections 1324 and the guide grooves 1322 of the actuating elements 612.

34 shows the holding device 300 of FIG 32 and 33 in the parking position. This makes it clear 34 an axial extension 1312 of the second holding unit 320. The axial extension 1312 is formed in the direction of the first holding unit 310.

Figure 35 shows the holding device 300 of FIG 32 to 34 in the working position. This makes it clear Figure 35 the arrangement of the holding device 300 on the output shaft 224 of 2 with the holding parts 490, designed as snap hooks 414, of the first holding unit 310 and the actuating elements 612 assigned to the second holding unit 320 Figure 35 the axial extension 1312, at the end of which facing the output shaft 224 the limiting element 438 is arranged. The limiting element 438 is in the in Figure 35 shown working position on the standing edge 418 of the conical section 411 of the first holding unit 310 associated standing element 1338 arranged. In order to guide the axial extension 1312 from the working position into the parking position, the first holding unit 310 has a guide track 1339 on its guide sections 1324 . On its inner circumference, the axial extension 1312 has a receptacle 1334 for arranging the spring element 410 .

Figure 36 shows the holding device 300 of FIG 32 to 35 . During assembly, the magnet 330 is arranged in the receptacle 436 of the second holding unit 320 . The spring element 410 is arranged between the first and second holding units 310, 320. The first and second holding units 310, 320 are then arranged next to one another, with the axial expansion 1312 of the second holding unit 320 being arranged on the respectively associated guideway 1339. The axial extension 1312 is preferably designed to be spring-elastic, so that it can be acted upon radially inwards and can be arranged in the guideway 1339 in such a way that it is illustratively arranged to the right of the standing element 1338 of the first holding unit 310, or in the Figure 35 shown queuing position can be arranged.

37 shows the first holding unit 310 of FIG 32 to 35 . This makes it clear 37 the webs 1320 with the guide sections 1324 and the guide tracks 1339. Furthermore, FIG 37 the configuration of the first holding unit 310 with four illustrative webs 1320, which are merely exemplary. Thus, the first holding unit 310 can also have more or fewer webs 1320 , with the number of webs 1320 corresponding to the number of axial extensions 1312 of the second holding unit 320 .

In addition, shows 37 the illustrative four snap hooks 414, with two snap hooks 414 preferably being formed diametrically opposite one another. The snap hooks 414 are preferably distributed evenly in the circumferential direction of the first holding unit 310 . However, the snap hooks 414 can also be distributed unevenly in the circumferential direction of the first holding unit 310 . In addition, the design of the first holding unit 310 with four snap hooks 414 is merely exemplary and should not be seen as a limitation of the invention. In this way, the first holding unit 310 also have fewer or more than four snap hooks 414. Illustratively and preferably, the snap hooks 414 are designed as segments, but the retaining part 490 designed as a snap hook 414 can also be designed as a single ring.

38 shows the first holding unit 310 of FIG 37 . This makes it clear 38 the webs 1320 and the recesses 622 for arranging the axial extensions 1312 of the second holding unit 320.

Figure 39 shows the first holding unit 310 of FIG 38 on the output shaft 224 from 2 . The ring-shaped base body 412 of the first holding unit 310 is arranged on the receiving area 289 of the output shaft 224 and bears against the ring web 812 in the direction of the hand-held power tool 100 . Furthermore, the snap hooks 414 preferably form the non-positive and/or positive connection with the shoulder 284 assigned to the output shaft 224 .

figure 40 shows the holding device 300 of FIG 32 to 39 in the working position with a further arrangement of the magnet 330 associated with the second holding unit 320. The receptacle 436 for arranging the magnet 330 is preferably arranged at a distance from a free axial end 403 of the second holding unit 320. In this case, the second holding unit 320 is preferably molded onto the magnet 330 by means of plastic injection molding. In addition, the magnet 330 can also be beaded in some other way. A holding section 1434 is arranged on the free axial end 403 of the second holding unit 320, so that the magnet 330 is arranged between the holding section 434 and the holding section 1434 and fixed by them.

Figure 41 shows the holding device 300 of FIG figure 40 with the screwdriver bit 170 and the screw element 270 in the working position. In the working position, the side 830 of the screw element 270 arranged on the holding device 300 that faces the magnet 330 is preferably in contact with the side 829 of the magnet 330 that faces the screw element 270 . Thus, as described above, the screw element 270 is at least approximately magnetized and is thus held on the holding device 300 at least in the axial direction 299 .

Furthermore, in the working position, the magnet 330 is preferably displaced axially from a free axial end 1398 of the output shaft 224 in the direction of the axial end 404 facing the first holding unit 310 such that the magnet 330 comes into contact with the screw element 270. An axial end 1399 associated with the interior receptacle 432 of the second holding unit 320 and facing the first holding unit 310 is arranged at a distance from the annular web 284 of the output shaft 224 in the working position.

Figure 42 shows the holding device 300 of FIG Figure 41 and preferably illustrates a gap-free arrangement of screw element 270 on magnet 330 .

Figure 43 shows the holding device of 41 and 42 in the parking position. In the parking position, the magnet 330 is displaced axially in the direction of the free axial end 403 of the second holding unit 320 in such a way that the second holding unit 320 releases the screwdriver bit 170 . A tool change can thus take place in the parking position. An element 1397 forms a stop surface for the magnet 330 in the parking position. The magnet 330 is designed in such a way that it forms such a strong magnetic connection with the stop surface 1397 that a release of the magnet 330 from the stop surface 1397 due to a spring force of the spring element 410 is prevented. Only when a user acts on it detaches the magnet 330 from the stop surface 1397 and moves the second holding unit 320 into the working position.

The free axial end 1398 of the output shaft 224 is preferably designed as a stop surface 1397 for the magnet 330 . Element 1397 is illustratively designed as a stop surface of output shaft 224, but element 1397 can also be another component that is arranged in the area of the free axial end 1398 of output shaft 224 or can be arranged on the free axial end 1398 of output shaft 224. In addition, the axial end 1399 of the inner receptacle 432 of the second holding unit 320 that faces the first holding unit 310 is preferably in contact with the annular web 284 of the output shaft 224 in the parking position. In this case, the second holding unit 320 is preferably designed in such a way that the magnet 330 rests without a gap, ie directly against the annular web 284 . When the magnet 330 is in contact with the annular web 284, it is preferred no further element of the holding device 300 on the output shaft 224 and/or the first holding unit 310.

Figure 44 shows the holding device 300 of FIG Figure 43 . In the parking position, the side 830 of the screw element 270 arranged on the holding device 300 that faces the magnet 330 is preferably arranged at a distance from the side 829 of the magnet 330 that faces the screw element 270 . The screwdriver bit 170 is thus released and an insert tool can be changed. As described above, the magnet 330 is preferably in contact with the stop surface 1397 of the output shaft 224 and forms a magnetic connection, so that the holding device 300 remains arranged in the parking position. The magnet 330 holds the holding device 300 in the parking position. An insert tool can thus be changed in which a user of the holding device 300 does not have to act on the second holding device 320 during the insert tool change.

Figure 45 shows the holding device 300 of FIG 32 to 44 with an alternative arrangement of the magnet 330 associated with the second holding unit 320. The receptacle 436 for arranging the magnet 330 is analogous to the arrangement of the magnet in FIG 40 to 44 , preferably arranged on an axial end 404 of the second holding unit 320 that faces the first holding unit 310 . According to the alternative arrangement of the magnet 330, it is fixed in the receptacle 436 via a clamping sleeve 1440.

The clamping sleeve 1440 preferably has a cylindrical base body 1442 with a first end 1441 facing the first holding unit 310 and an axial end 1443 facing the magnet 330 . Furthermore, the clamping sleeve 1440 has at least one first clamping element 1446 and at least one second clamping element 1444. The at least one first clamping element 1446 is preferably arranged on the inner circumference of the cylindrical base body 1442. The at least one first clamping element 1446 is designed as an annular collar. The at least one first clamping element 1446 is preferably provided at the second end 1443 of the clamping sleeve 1440 and is designed to act on the magnet 330 in the receptacle 436. The at least one second clamping element 1444 is preferably arranged at the first end 1441. The at least one second clamping element 1444 is on the outer circumference of the Clamping sleeve 1440 formed. The at least one second clamping element 1444 is preferably embodied as an annular collar.

Furthermore, the second holding unit 320 preferably comprises at least one fixing element 1452. The fixing element 1452 is preferably designed as a receptacle. The at least one fixing element 1452 is embodied as an annular groove for arranging the at least one second clamping element 1444 of the clamping sleeve 1440. The at least one fixing element 1452 is preferably arranged on an end of the interior receptacle 432 of the second holding unit 320 that faces the first holding unit 310. The at least one first clamping element 1446 preferably fastens the magnet 330 to the second holding unit 320, and the at least one second clamping element 1444 preferably forms an operative connection with the fixing element 1452. The active connection is preferably designed as a positive and/or non-positive connection. The magnet 330 preferably projects beyond the receptacle 436 in sections, and the clamping sleeve 1440 has a receptacle at its second end 1443 for arranging the section of the magnet 330 that projects beyond the receptacle 436 . The second axial end 1143 of the clamping sleeve preferably rests against a shoulder 1454 that steps down the receptacle 436 . Furthermore, an axial end 1449 of the magnet 330 facing the second end 1443 of the clamping sleeve 1440 is in contact with the at least one first clamping element 1446. It is pointed out that the magnet 330 can also be acted upon at its axial end 1449 from an end face arranged at the second axial end 1443 .

Figure 46 shows the holding device 300 of FIG Figure 45 . This makes it clear Figure 46 the arrangement of the clamping sleeve 1440 in the interior receptacle 432 of the second holding unit 320. The at least one first clamping element 1446 acts on the magnet 330 at its axial end 1449 against the holding section 1434 of the second holding unit 320 formed on the free end 402. The clamping sleeve 1440 is through the operative connection between the at least one second clamping element 1444 of the clamping sleeve 1440 and the fixing element 1452 of the inner receptacle 432 is fixed in the inner receptacle 432.

Claims (13)

1. Holding device (300) for a hand-held power tool (100) having a tool receptacle (140) which is configured at least to receive an application tool (170), in particular a screwdriver bit, wherein the holding device (300) is intended to hold a fastening element (270), in particular a screw element, wherein a first holding unit (310) for fixing the holding device (300) to a hand-held power tool (100), and a second holding unit (320), which is movable axially on the first holding unit (310), for holding a fastening element (270), in particular a screw element, wherein the second holding unit (320) is arrangeable in a working position and in a parked position and has a receptacle (436) in which a holding element (330), in particular a magnet, is arranged, in order, in the working position, to allow the fastening element (270) to be held in an axial direction (299) of the holding device (300), characterized in that the second holding unit (320) is held in the parked position by the holding element (330).
2. Holding device according to Claim 1, characterized in that the receptacle (436) is arranged at a free axial end (403) of the second holding unit (320), wherein the holding element (330) is arranged in the receptacle (436) via a materially bonded connection, in particular an adhesive bond.
3. Holding device according to Claim 1, characterized in that the receptacle (436) is arranged at an axial end (404), facing the first holding unit (310), of the second holding unit (320), wherein the holding element (330) is fixed in the receptacle (436) via a clamping sleeve (1440).
4. Holding device according to Claim 3, characterized in that the clamping sleeve (1440) has at least one first clamping element (1446) and at least one second clamping element (1444), and the second holding unit (320) comprises at least one fixing element (1452), wherein the first clamping element (1446) fastens the holding element (330) to the second holding unit (320) and the second clamping element (1444) forms an operative connection, in particular a form-fitting and/or force-fitting connection, to the fixing element (1452).
5. Holding device according to Claim 1, characterized in that the receptacle (436) is arranged at a distance from a free axial end (403) of the second holding unit (320), wherein the second holding unit (320) is moulded onto the holding element (330) by means of plastic injection moulding.
6. Holding device according to one of the preceding claims, characterized in that the holding element (330), in the working position of the second holding unit (320), has been displaced axially in the direction of an axial end (404) facing the first holding unit (310) from a free axial end (1398) of an output shaft (224) driving the tool receptacle (140) such that the holding element (330) comes into abutment with a fastening element (270), and, in the parked position, has been displaced axially in the direction of a free axial end (403) of the second holding unit (320) such that the second holding unit (320) releases the application tool (170).
7. Holding device according to one of the preceding claims, characterized in that an output shaft (224) driving the tool receptacle (140) is provided with at least one internal receptacle (248), wherein the internal receptacle (248) is configured for the arrangement of an application tool (170), and an application tool (170) arranged in the internal receptacle (248) projects beyond a free axial end (403) of the second holding unit (320) in the parked position of the second holding unit (320).
8. Holding device according to one of the preceding claims, characterized in that the second holding unit (320) is urged into the working position by at least one spring element (410).
9. Holding device according to one of the preceding claims, characterized in that the second holding unit (320) has, in particular on its outer circumference, at least one actuating element (612) for manually adjusting the second holding unit (320) from the working position into the parked position, or vice versa.
10. Holding device according to one of the preceding claims, characterized in that, in the working position of the second holding unit (320), a side (830), facing the holding element (330), of a fastening element (270) arranged on the holding device (300) bears on a side (829), facing the fastening element (270), of the holding element (330) .
11. Holding device according to one of the preceding claims, characterized in that the second holding unit (320) is assigned a depth stop (1230), wherein a depth of a desired screw-in depth of a fastening element (270) arranged on the holding device (300) is set via a thread (1233, 1234) formed between the first and second holding units (310, 320) or via a guide groove (1242) and a latching pin (1244) that is arrangeable in latching positions therein.
12. Holding device according to one of the preceding claims, characterized in that a free axial end (1398) of an output shaft (224) driving the tool receptacle (140) forms a stop surface for the holding element (330) in the parked position.
13. Holding device according to one of the preceding claims, characterized in that an element (1397) forms a stop surface for the holding element (330) in the parked position.

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