EP2851160A1 - Handheld machine tool and releasable device for the same - Google Patents

Abstract

The invention relates to a hand-held power tool (10), in particular a Oszillationshandwerkzeugmaschine, with a housing (16) and in the housing (16) arranged An-drive (11) for driving a tool holder (15) on a tool shaft (14 ) and on which a tool (40) configured in particular as a cutting tool or drilling tool can be detachably mounted, wherein the hand-held machine tool (10) has a mounting bracket (60) for detachably mounting a bearing device (100) with a contact body (150) on a workpiece (W) to be machined with the hand-held power tool (10). It is provided that the mounting bracket (60) has a holding receptacle (67) penetrated by the tool shaft (14) and the abutment device (100) has a laterally open receiving mouth (113) at a connection section (110) which is transverse to a longitudinal axis direction ( 18) of the tool shaft (14) can be brought into engagement with the holding receptacle (67) when the tool (40) is arranged on the tool receptacle (26), so that the abutment device (100) can be attached to the hand-held machine tool (10) when the tool (40) is mounted ) is mountable or is removable from this again.

Description

The invention relates to a hand-held machine tool, in particular a Oszillationshandwerkzeugmaschine, with a housing and a housing arranged in the drive for driving a tool holder, which is arranged on a tool shaft and on which a particular designed as a cutting tool or drill tool is detachably mounted, wherein the Hand machine tool having a mounting bracket for releasably mounting a system device with a system body to rest on a workpiece to be machined with the hand machine tool. The invention further relates to an abutment device as part of a system for releasable attachment to the hand-held machine tool.

For example, it is common in drills that they have a front handle close to the chuck, which also serves as a clamp for a depth stop. As a rule, the depth stop, usually a bent rod, remains permanently on the drill. The dismantling is awkward. In a Oszillationshandwerkzeugmaschine whose tool usually projects transversely to the axis of a tool shaft, a contact device can be very difficult to install. Namely, one must first remove the tool so that the abutment can be mounted on a collar or mounting flange between the tool holder and the machine housing. This is very complicated.

It is therefore the object of the present invention to provide a hand machine tool and a releasable abutment device therefor, which make it possible to mount the abutment device more easily on the hand machine tool.

To solve the problem is provided in a hand-held machine tool of the type mentioned above, that the mounting bracket has a penetrated by the tool shaft holding receptacle and the abutment device at a connection portion has a laterally open receiving mouth, which arranged transversely to a longitudinal axis of the tool shaft at the tool holder Tool can be brought into engagement with the holding receptacle, so that the abutment device is mounted with mounted tool on the hand-held machine tool or can be removed from this again.

The invention further relates to a contact device for a hand-held machine tool, in particular a Oszillationshandwerkzeugmaschine having a housing and arranged in the housing drive for driving a tool holder, which is arranged on a tool shaft and on which a particular designed as a cutting tool or drilling tool detachably mounted wherein the abutment device forms a system component of a system comprising a mounting bracket for releasably mounting the abutment device, wherein the mounting bracket on the hand-held machine tool is detachably attachable or forms part of the hand-held machine tool, wherein the abutment device is an abutment body for abutment against a having the workpiece to be machined with the hand-held power tool, wherein it is provided in the abutment device that the mounting bracket has a holding receptacle penetrated by the tool shaft when the abutment device is in use t and the contact device at a connection portion a laterally open Receiving jaw, which is engageable transversely to a longitudinal axis of the tool shaft when arranged on the tool holder tool in engagement with the holding receptacle, so that the abutment device with mounted tool on the hand-machine tool can be mounted or is removed from this again.

It is a basic idea of the present invention that the abutment device has no closed, annular connection element, but a laterally open connection element, namely with a receiving mouth. By means of a suitably present fixing device or locking device, it is possible to firmly lock the abutment device with the housing of the hand-held machine tool or to fix it firmly. The assembly or disassembly thus happens laterally past the tool, which can accordingly remain on the tool holder.

The abutment device is preferably tool-free or without an assembly tool, e.g. without Allen key, mountable to the mounting bracket. Expediently, an actuation of the mounting means for mounting the abutment device on the mounting bracket and for dismantling with reference to a latch, a thumb screw or the like is provided.

The drive of the hand machine tool is expediently an oscillation drive. Consequently, therefore, the tool holder and the optionally arranged there tool pivots about a tool shaft axis, namely the axis of the tool shaft and its longitudinal axis back and forth.

The one tool longitudinal axis of the tool and the tool shaft axis is expediently at an angle to one another, for example obliquely angled or at right angles.

Conveniently, the longitudinal axis or longitudinal axis of the tool and the longitudinal axis of the housing are in mutually parallel planes.

An assembly axis along which the abutment device is mountable to the mounting bracket is conveniently located between the longitudinal axis of the housing and the longitudinal axis of the tool.

The tool is expediently an oscillating tool, in particular a cutting and / or drilling oscillating tool. The tool is preferably substantially plate-like and has a cutting edge on a narrow side.

The holding receptacle is expediently arranged on an outer circumference of the tool receptacle. Preferably, the holding receptacle is located on a machine projection which projects, for example, in front of the housing of the hand-held machine tool.

The mounting bracket may form an integral part of the hand machine tool, such as its housing, an outer periphery of the tool shaft or the like.

However, a concept is preferred such that the mounting bracket is designed as a detachable, for example by means of a screw and / or jamming and / or latching or the like, attachable to the housing of the hand-held machine attachment adapter for fixing the investment device. However, the mounting bracket can remain on the hand-held machine tool. You can operate the hand-held machine tool without the adapter, so that just no installation of the system is possible, but also with the adapter, so you easily the investment device can be mounted on the hand-held machine tool or removed again. The assembly or disassembly happens very fast.

Preferably, the holding receptacle and the receiving mouth located in engagement with the holding receptacle are components of a rotary bearing or together form a rotary bearing, so that the abutment device and the housing of the hand-held machine tool can be rotated relative to one another.

The pivot bearing is preferably designed so that the abutment device in a first rotation angle range, in which the abutment device relative to the housing of the hand-held machine tool for workpiece processing, for. is rotatable for alignment with the tool and / or workpiece, is rotatably and captively held on the mounting bracket, in a second rotation angle range, which is provided for disassembly of the abutment device from mounting bracket and mounting the abutment device to the mounting bracket, radially relative to the mounting bracket is free to move , The first rotation angle range includes, for example, angular positions of about 0-120 ° or 0-140 ° starting from a central position. The middle layer corresponds for example to a longitudinal axis of the housing of the hand-held machine tool. When the abutment is rotated out of this first range of rotational angle, it can be removed from the mounting bracket.

On the basis of the pivot bearing, it is possible to rotate the Längsachspositionen on the one hand of the investment device and on the other hand, the hand machine tool relative to each other, for example, to adjust the investment device in a favorable position with respect to the workpiece and / or the tool.

A further advantageous embodiment of the invention provides that holding contours are provided between the holding receptacle and the receiving mouth or any other place between on the one hand the mounting bracket and on the other hand, the contact device, for example, the terminal portion and the receiving mouth in the holding receptacle between a release position, in which the Holding contours are disengaged and the abutment device is removable from the holding receptacle, and a use position in which the holding contours intermesh and the abutment device is not removable from the holding receptacle, are rotatable. The retaining contours include e.g. interlocking teeth, threaded sections, bayonet hooks or - as in the embodiment according to the drawing - locking projections, which are guided over a predetermined rotation angle range in a guide channel.

At the holding receptacle and / or the receiving mouth is expediently at least one rotation angle coding for mounting the abutment device on the holding receptacle in a predetermined angular position. In this way, the abutment device can be defined according to the respective rotation angle coding with respect to the housing of the hand-held machine tool in defined rotational angle positions. For example, the rotation angle codings are mechanical rotation angle codings, e.g. Locking contours or locking recesses. It is also possible that the rotation angle codes include optical rotation angle marks, arrows and the like.

It is preferred if the hand-held machine tool and / or the abutment device has at least two rotational angle codes assigned to different angles of rotation of the abutment device relative to the housing of the hand-held machine tool, the different, for example predetermined, tool angular positions are assigned, in which the tool can be mounted on the tool holder. For example, holding contours associated with certain angular positions or angular positions are provided on the tool holder, for example its tool holder, for example in the form of a polygon. The abutment device can be set to the correct angle with respect to the tool according to the rotational angle codings provided between it and the housing of the hand-held machine tool or the mounting bracket on the housing of the hand-held machine tool. The angular position of the abutment then corresponds to the angular position of the tool. For example, the tool and the abutment device may have mutually parallel longitudinal axes that are oriented obliquely to a longitudinal axis of the housing of the hand-held machine tool.

Preferably, a clamping device or a latching device or both is provided, with which the abutment device can be clamped or latched to the mounting bracket. In turn, one, two or further predetermined angular positions or rotational angle encodings in which the locking or clamping is possible are preferred.

The latching device expediently has at least one resilient latching projection, for example a latching pawl. The at least one latching projection can be brought into engagement with at least one latching receptacle. It is possible that the latching projection on the holding receptacle and the at least one latching receptacle are provided on the receiving mouth. But even the reverse configuration is possible, namely that the locking receptacle is arranged on the holding receptacle and the latching projection on the receiving mouth. Also combinations of both variants are possible. The resilient latching projection can eg as a sprung, linearly movable latch or designed as a pivot lever.

The latching projection is expediently engageable with the at least one latching receptacle by a rotary movement, for example about the longitudinal axis direction of the tool shaft. By a simple rotational movement so the contact device and the machine tool are engageable with each other.

Preferably, at least one inclined surface, for example on the latching projection or the latching receptacle or both, is provided, which extends transversely to an engagement axis for deflecting the at least one latching projection in a remote from the at least one detent recess disengaged position along which the latching projection engages the at least a catch receptacle can be brought.

The at least one inclined surface may, for example, be designed such that the latching projection and the latching receptacle can be disengaged in the event of a shock load, in particular if the hand-held machine tool falls to the ground.

The or at least one inclined surface can serve to deflect the at least one latching projection during assembly of the two components by a rotational movement of the receiving mouth relative to the holding receptacle.

An expedient embodiment of the invention provides, for example, that the latching projection automatically passes, in particular by an inclined surface arrangement, into a deflected position in which a surface adjacent to the latching receptacle can be moved past the latching projection. It is possible, for example, that is automatically deflected during assembly of the abutment device on the mounting bracket of the locking projection, so that it can slide past the surface next to the locking receptacle and then engages in the locking receptacle. For example, an inclined surface is located laterally next to the latching receptacle and acts, so to speak, as a ramp, which deflects the latching projection when the receiving mouth pivots about the mounting bracket. The at least one inclined surface thus forms a kind of insertion bevel or assembly aid.

The holding receptacle is expediently configured as a ring receptacle or circumferential groove extending annularly around the tool receptacle or has such a receptacle or circumferential groove.

The circumferential groove or ring receiver is expediently U-shaped in cross-section or L-shaped or T-shaped. It is e.g. possible that the ring receptacle has an annular or part-annular web, so to speak T-shaped, wherein the web is, so to speak, by the counterpart, which is provided on the receiving mouth, is embraced.

An advantageous embodiment can provide that a peripheral wall is arranged opposite a bottom of the circumferential groove or ring receptacle, so that a guide channel which radially supports the receiving jaw with respect to the longitudinal axis direction of the tool shaft and is guided in the sense of rotation about the tool shaft is formed. Thus, therefore, the abutment device is rotatable relative to the housing or mounting bracket, but can not be moved radially outward away. Consequently, then a kind of closed pivot bearing is then formed.

An expedient embodiment of the invention provides that at least one tooth of the latching device is received as a slide follower in the guide channel.

In the following embodiment of the invention, it does not necessarily depend on the connection technology according to the invention between the contact device and mounting bracket or hand machine tool, but the investment device could also remain permanently on the hand-held machine tool or even be mounted or dismounted, if previously the tool removed from the tool holder. In other words, the embodiment described below describes an independent invention

The investment device expediently has a depth stop or forms a depth stop. With the depth stop, for example, a penetration depth of the tool can be limited in the workpiece. The abutment device can therefore be a pure depth stop, for example with a particular cranked depth stop rod.

It is also possible for the abutment device to have the abutment body configured in particular as a table and a machine carriage having or to form the connection section with the receiving mouth. The machine slide and the abutment body are movable relative to one another by means of a guide arrangement, so that the machine carriage is guided by the housing of the hand-held machine tool through the guide arrangement and is movable relative to the abutment body abutting the workpiece during use.

In the abutment device, it is advantageous if it has a length-adjustable rod relative to the connecting section with the receiving jaw and a relative to the rod having rotatable, the plant body forming stop leg having a stop surface for abutment against the workpiece.

Preferably, one or more locking devices are provided for respectively fixing the one hand of the rod on the connection portion and on the other hand of the stop leg with respect to the rod. For example, a rod-locking device for locking the rod is provided in at least one longitudinal position with respect to the connecting portion. A stop leg locking device is expediently used for locking the stop leg in at least one rotational position with respect to the rod.

The rod can be guided against rotation on the connection section. For example, the rod can be fixed in different longitudinal positions with respect to the connecting portion, for example by means of a clamping device and / or a locking device, e.g. the aforementioned locking device, or the like. Nevertheless, the rod no longer rotates about its own Längsachsrichtung, but can only be adjusted axially. As a result, the adjustment of the stop leg, so a rotational movement, much easier. After all, you do not have to fix the rod to the connection section before you turn the stop leg.

Advantageously, it is provided that a tool support surface for supporting a flat side of the tool extends in addition to the contact surface.

It is a basic idea that the tool support surface supports the tool on its flat side, so that it is laterally supported during penetration into the workpiece and much better work results can be achieved.

The tool support surface may be integrally provided on the contact body. It is also possible for the tool support surface to be provided on a tool support body which is in particular firmly connected to the contact body.

The tool support surface contributes, in particular in combination with an additional tool guide, a magnet or the like, but also without such additional guidance that vibrations of the tool or the saw blade are reduced. As a result, tears on the workpiece are significantly reduced or do not occur at all.

Further, it is possible that a Tiefeneinstellskala is provided, for example on a guide rod of the guide assembly.

The abutment body could be detachably arranged on the guide arrangement, for example clamped by means of a clamping device with a guide rod of the guide arrangement. But it is also possible that, for example, guide rods of the guide assembly with the plant body are firmly connected, for example screwed or pressed.

The abutment body can be positioned very favorably on a workpiece marking, for example a tear line, attached to the workpiece, so that the tool cuts or penetrates precisely at this marking in the workpiece. This orientation is already possible when the tool is still removed from the workpiece, for example, the housing of the hand-held machine tool is furthest away from the contact body.

Based on the tool support surface, the tool has an angular position to the workpiece, so that exact cuts possible are. If the tool, for example the saw blade, is not quite accurate in angle, the tool support surface, for example in combination with an additional magnet, which will be described below, contributes to optimizing the tool / saw blade with respect to the abutment body and thus the Workpiece is positioned and angular errors of the tool are compensated.

Advantageously, additional markings, for example outer surfaces serving as orientation, line markings and the like, are provided on the contact body. Based on these markings, it is possible to position the abutment body so exactly on the workpiece, so that the subsequent saw cut is made by the tool at the desired location.

The tool may advantageously be opposite the tool support surface at least partially or completely free, so that another side of the tool, which is opposite to the flat side against which the tool rests against the tool support surface, is visible above the workpiece, for example directly above a cutting edge. Thus, the operator can very closely view the cut which he makes with the hand-held machine tool. It can very easily edge-sided cuts, for example, along a skirting board, performed.

It is possible that the tool support surface is opposite a transparent portion of the abutment body, so that one of the flat side, which is supported on the tool support surface, opposite side of the tool above the workpiece, for example above the cutting edge, is clearly visible. Thus, therefore, this other side of the tool does not necessarily have to be free, but there may be a transparent portion of the abutment body or one with the abutment body connected component, which is also considered simplified as an investment body, be provided.

An advantageous embodiment of the invention provides that the tool support surface is provided at an end of the tool furthest from the tool holder or the tool holder. About acting on the tool leverage forces are thereby optimally absorbed.

Preferably, an additional tool guide is provided, for example of a mechanical type, which has at least one guide surface away from the tool support surface. Thus, at least one additional guide surface is provided in addition to the workpiece support surface.

For example, such a tool guide may comprise at least one U-shaped guide receptacle into which the tool is inserted with a narrow side. For example, two such guide receptacles are provided opposite one another, in which the tool oscillates, as it were, back and forth or is rotatably received.

The at least one guide surface can therefore also comprise a guide surface opposite the tool support surface, so that the tool is guided between the tool support surface and the opposite guide surface. This guide surface may be provided on a transparent portion of the contact body.

At this point, it should be mentioned that the contact body does not necessarily have to be in one piece, but may also have several sections or elements, for example solid, non-transparent sections, but also transparent sections.

The abutment body is preferably designed as a kind of table or plate or has such a plate. Thus, the contact body can be placed over the entire surface of the workpiece. Preferably, a type of rubber or other elastic surface is provided on the contact surface, so that the workpiece is not damaged.

The tool guide, as already mentioned, is expediently arranged wholly or partly between the tool support surface and the tool holder. Therefore, it is therefore at least partially above the tool support surface. In this way it is possible, for example, that further below, the tool support surface opposite, no view of the operator on the cutting edge obstructing component is provided.

A very efficient and realized in the embodiment according to the drawing embodiment provides that in the region of the tool support surface at least one magnet, for example a permanent magnet, electromagnet or both, is arranged, which generates a tool in the direction of the tool support surface attracting magnetic field , Thus, therefore, the tool is always pulled in the direction of the support surface and is there flat. The magnet or the magnets can be arranged, for example, behind or above the support surface.

Appropriately, it is provided that the tool support surface comprises a front of a side surface of the contact body projecting narrow support edge or is formed thereby. In any case, a narrow, preferably linear support contour is advantageous. The friction between the tool support surface and the tool is thereby reduced.

The contact body is expediently spring-loaded in the direction of the tool holder away by a spring arrangement. Consequently, the spring arrangement thus pushes the contact surface away from the housing of the hand-held machine tool.

It is preferred if the hand-held machine tool has at least one longitudinal fixing device for fixing the contact body in at least one longitudinal position relative to the tool holder and / or at least one stop device for limiting movement of the tool holder in at least one longitudinal position with respect to the contact body. For example, the abutment device of the type is fixed, that the contact surface occupies a longitudinal position, which is furthest away from the tool holder. But also the as it were completely retracted state is preferably fixable, i. that the tool holder and the contact body or its contact surfaces are closest to each other.

The abutment body or depth stop can be fixed, for example, in its longitudinal direction, that is to say with respect to the spacing of the abutment surface or abutment surface for the tool receptacle, for example by means of a clamping device and / or latching device. In any case, it is expedient if the depth stop or stop body in the fully extended or retracted position or both can be fixed, for example, clamped, latched or both.

The guide arrangement expediently comprises or forms a linear guide

The longitudinal fixing device or the stop device expediently has a clamp or an adjustable stop projection or a stop projection which is adjustable in a movement path of a guide rod of the guide arrangement. For example Such a clamp is attachable to a guide rod of the guide assembly. When a carriage carrying the hand machine tool travels along this rod, it hits against this clamp so that the depth of penetration of the tool into the workpiece is limited. Also, a corresponding catch, which is adjustable in the path of movement of a rod, can cause a length limitation or limitation of the extension movement or retraction movement.

The abutment device expediently has a depth stop or forms a depth stop with which a penetration depth of the tool into the workpiece can be limited.

An embodiment of the invention shown concretely in the drawing provides that the abutment device comprises a machine carriage for holding the housing of the hand-held machine tool, which is movable relative to the at least one, for example, designed as a table, plant body on the basis of the guide arrangement. The machine carriage is guided with the housing of the hand-held machine tool guided by the guide arrangement relative to the abutting in use on the workpiece bearing body. This embodiment of the invention may also be referred to as a piecing aid or piecing device.

While it is possible for the abutment to form an integral part of the hand machine tool, i. permanently attached thereto.

However, a detachable configuration is preferred. The hand-held power tool and the abutment suitably form part of a system having a mounting bracket for releasably mounting the abutment, the mounting bracket being one of the tool shaft permeated holding receptacle comprises and the abutment device has at a connection portion a laterally open receiving mouth, which is transverse to a longitudinal axis of the tool shaft engageable with the tool holder tool in engagement with the holding receptacle, so that the abutment device with mounted tool on the hand-machine tool can be mounted and is removable from this again. It should be noted that the assembly and disassembly without the tool must be removed from the tool holder, is advantageous. But it is also possible that just no laterally open receiving mouth is present, but that, for example, an annular flange or a ring receptacle is provided which is placed on a housing projection or the tool shaft of the hand-held machine tool. Thus, therefore, the lateral receiving mouth does not exist.

Furthermore, it is possible that the mounting bracket forms an integral part of the hand-held machine tool or is designed as a front adapter, which is detachably fastened to the housing of the machine tool, for example screwed.

Figur 1

eine perspektivische Schrägansicht einer Hand-Werkzeugmaschine mit montierter Anlagevorrichtung, bevor das Werkzeug in ein Werkstück eindringt,

Figur 2

die Anordnung gemäß Figur 1, jedoch bei bereits in das Werkstück eingetauchtem Werkzeug,

Figur 3

einen vorderen Teil der Hand-Werkzeugmaschine gemäß Figuren 1,2 in unterschiedlichen Längspositionen bezüglich eines Anlagekörpers der Anlagevorrichtung,

Figur 4a

die Anlagevorrichtung der vorstehenden Figuren, während sie seitlich an die Hand-Werkzeugmaschine herangeführt wird, bis sie in

Figur 4b

an Hand-Werkzeugmaschine angeordnet ist,

Figur 5

eine perspektivische Schrägansicht einer Montagehalterung und der Anlagevorrichtung gemäß vorstehender Figuren von schräg unten,

Figur 6

einen vorderen Werkzeugabschnitt der Hand-Werkzeugmaschine mit der Montagehalterung,

Figur 7

die Montagehalterung gemäß Figur 6 perspektivisch schräg von oben,

Figur 8

eine Schnittdarstellung der Montagehalterung gemäß Figur 7, etwa entlang einer Schnittlinie A-A,

Figur 9

die Hand-Werkzeugmaschine mit demontierter Werkzeughalterung von schräg oben, die in

Figur 10

von schräg unten dargestellt ist,

Figur 11

eine untere Ansicht der Hand-Werkzeugmaschine und der Anschlagvorrichtung, wobei deren Längsachsen zueinander winkelig sind,

Figur 12

eine weitere Anschlagvorrichtung im an dem Kopf oder Werkzeugabschnitt der Hand-Werkzeugmaschine montierten Zustand, wobei ein Tiefenanschlag eine erste Drehposition einnimmt,

Figur 13

die Anordnung gemäß Figur 12, jedoch mit einer zweiten Drehposition des Tiefenanschlags,

Figur 14

eine Explosionsdarstellung einer Stange und eines Anschlagschenkels des Tiefenanschlags gemäß Figuren 12, 13 von schräg oben, und

Figur 15

eine Teilansicht der Anordnung gemäß Figur 14, von oben.

Hereinafter, an embodiment of the invention will be explained with reference to the drawing. Show it:

FIG. 1

3 is an oblique perspective view of a hand-held machine tool with mounted abutment device before the tool penetrates into a workpiece;

FIG. 2

the arrangement according to FIG. 1 but with tool already immersed in the workpiece,

FIG. 3

a front part of the hand machine tool according to Figures 1,2 in different longitudinal positions with respect to an abutment body of the abutment device,

FIG. 4a

the abutment device of the preceding figures, while it is brought laterally to the hand-held machine tool until they are in

FIG. 4b

arranged on hand machine tool,

FIG. 5

an oblique perspective view of a mounting bracket and the abutment device according to the above figures obliquely from below,

FIG. 6

a front tool section of the hand machine tool with the mounting bracket,

FIG. 7

the mounting bracket according to FIG. 6 in perspective obliquely from above,

FIG. 8

a sectional view of the mounting bracket according to FIG. 7 , approximately along a section line AA,

FIG. 9

the hand machine tool with disassembled tool holder obliquely from above, in

FIG. 10

shown diagonally from below,

FIG. 11

a bottom view of the hand machine tool and the stop device, wherein the longitudinal axes are angled to each other,

FIG. 12

another stop device in the state mounted on the head or tool section of the hand-held machine tool, wherein a depth stop assumes a first rotational position,

FIG. 13

the arrangement according to FIG. 12 but with a second rotational position of the depth stop,

FIG. 14

an exploded view of a rod and a stop leg of the depth stop according to FIGS. 12, 13 from diagonally above, and

FIG. 15

a partial view of the arrangement according to FIG. 14 , from above.

A hand-held power tool 10 is, for example, an oscillating hand-held power tool, but could for example also be designed as a handsaw. A drive 11 of the hand-held power tool 10 comprises a drive motor 12 and expediently also a gear 13, which has a tool shaft 14 at its output. Alternatively, a direct drive would be possible, i. that, for example, the tool shaft directly forms part of the drive motor 12.

At the free end of the tool shaft 14 is a tool holder 15 to which a tool 40 is releasably fastened.

The drive 11 is received in a housing 16 of the hand-held power tool 10. With the drive 11 is an oscillating movement 17 of the tool holder 15 and thus of the tool 40 can be generated (indicated by an arrow). The oscillatory movement 17 is an alternating pivotal movement about a longitudinal axis direction 18 of the tool shaft 14. The transmission 13 includes, for example, a reduction gear, an angle gear or the like. The drive 11 is, at least as regards the gear 13, arranged in a front housing portion 19 of the housing 16. At the front housing portion 19, a handle portion 20 connects, which is provided for gripping the hand-held power tool 10. Consequently, therefore, the housing portion 19 and the handle portion 20 along a housing longitudinal axis 21 are arranged one behind the other or side by side.

At the remote from the tool holder 15 longitudinal end of the hand-held power tool 10 electrical connections 22, for example, for an electric power cable, are provided. Of course, the hand-held power tool 10 could also be configured as a machine tool to be operated wirelessly and (not shown) have an energy store, for example an electric accumulator, on board. Only indicated is an electrical switch 23 in the handle portion 20, which can be actuated by an operator to turn on the drive 11, turn off and expediently set its speed.

The housing longitudinal axis 21 and the longitudinal axis 18 of the tool shaft 14, ie the tool shaft axis, are mutually angled, for example, at right angles. The tool 40 projects forward or laterally from the housing 16 having a longitudinal shape. A tool longitudinal axis 54 of the tool 40 and the longitudinal axis 18, ie the tool shaft axis, are mutually angular, for example at right angles. The housing longitudinal axis 21 and the tool longitudinal axis 54 are expediently in mutually parallel planes.

The tool holder 15 is provided on a machine projection 24 on an underside 25 of the housing 16. Thus, therefore, the machine projection 24 from the housing 16 is slightly off.

The tool 40 is presently a sawing tool and has a plate-like shape. Extending from a mounting portion 41 is a blade body 42, the free end portion 43 of which has a cutting edge 52, e.g. is provided with a knife contour and / or saw teeth, that is configured for the production of saw cuts. An end face of the free end region 43, on which the saw teeth are arranged, is rectilinear here, but could of course also be curved or bent.

Between the plate-like mounting portion 41 and the blade body 42, a step 44 is still provided. The step 44 ensures that a plane E1, in which the blade body 42 extends, is offset from a plane E2 of the mounting portion 41.

The tool holder 15 includes a tool holder 26 into which a mounting pin 27 can engage. The tool holder 26 is arranged at the front on the tool shaft 14 and has a toothing 28 on its inner circumference. Teeth 29 of the toothing 28 correspond in shape and spacing with teeth 49 of a toothing 48, which are provided on an inner periphery of a passage opening 50 of the tool 40.

The fastening pin 27 has a head 30, from which a bolt portion 31 protrudes. Forming contours 32 are provided at the free end region of the bolt portion 31 and can be brought into engagement with corresponding form-fitting contours which are not visible in the drawing, namely by an actuating lever 33 on the upper side of the housing 16 a swivel bearing 34 is pivoted (indicated by a double arrow), wherein in the pivoted away from the housing 16 release position of the actuating lever 33, the form-fitting contours inside the housing 16, the bolt portion 31 released while in the in FIG. 9 illustrated clamping position of the actuating lever 33 of the mounting pin 27 is pulled into the tool holder 26, whereby the mounting portion 41 of the tool 40 between an end face 35 of the tool shaft 14 or the tool holder 26 and the head 30 of the mounting pin 27 is stretched. In addition, teeth 36 are provided on the head 30, which engage positively in the clamping position of the fastening pin 27 in the distances between the teeth 29 of the tool holder 26 and the teeth 49 at the passage opening 50, so that the tool 40 held against rotation on the tool holder 15 is. Of course, this type of attachment is to be understood as an example, ie, for example, an attachment with a clamping nut, screw or the like would be readily possible. Interesting in any case is the proposed tool holder 15, which represent the teeth 29, so to speak rotary angle encodings or defined angular positions, in which the tool 40 can be attached to the tool holder 15 and in each case assumes a predetermined angular position.

On the tool holder 15 and the machine projection 24, a mounting bracket 60 may be attached, which serves for releasably securing a contactor 100.

The mounting bracket 60 has a fixing body 61 which is substantially plate-shaped. In any case, the fastening body 61 can be secured to the underside 25 of the housing 16, for example by means of 2 screws 62 which pass through corresponding openings on the fastening body 61 inserted through and screwed into screw receptacles 37 on the bottom 25 of the housing 16.

From the mounting body 61 is a sleeve portion 63 from which has a passage opening 64 for the tool shaft 14, at least the tool holder 15. An end face 65 of the mounting bracket 60, e.g. the sleeve portion 63, is aligned approximately with the end face 35 of the tool holder 26 when the mounting bracket 60 is secured to the housing 16.

At the housing 16 facing or associated bottom, the mounting bracket 60 has a receptacle 66, in which the machine projection 24 can dive positive fit. The machine projection 24 is fixed together with the two screws 62, the mounting bracket 60 captive and rotationally fixed to the housing 16 of the hand-held machine tool 10. Of course, even more form-fitting contours, frames or the like could be provided so that the mounting bracket 60 holds well on the housing 16. There are also locking devices, clamping devices or the like other fasteners of a mounting bracket according to the invention on the machine housing possible, but this is not realized in the embodiment. Furthermore, it is also possible that retaining contours, as will be described later in connection with the mounting bracket 60, directly form part of the hand-held power tool 10, for example, are arranged on the housing 16. For example, the sleeve portion 63, which provides a retaining receptacle 67 for the abutment 100, could be integrally and fixedly connected to the housing 16. The advantage of the detachable mounting bracket 60, however, is that it is mounted to the housing 16 only when needed, but otherwise it may remain in the workshop, for example. The abutment device 100 is releasably attachable to the mounting bracket 60. The abutment device 100 has a connection section 110 and a contact body 150, which are movable relative to one another on the basis of a guide arrangement 180. The guide arrangement 180 guides the movement of the connection section 110 with respect to the contact body 150. In the present case, the guide arrangement 180 leads linearly, namely along a guide axis 181. The guide axis 181 is simultaneously the longitudinal axis of the abutment device 100.

The guide assembly 180 includes, for example, guide rods 182 that are immersed in guide sleeves 183 that are connected to the terminal portion 110, such as bolted, welded, or as integral as present. The connecting portion 110 is located between the two guide sleeves 183, which receive the guide rods 182 movable, namely along the guide shafts 181.

The contact body 150 is loaded in a direction away from the connection section 110 by a spring arrangement which, for example, comprises springs 184 arranged in the interior of the guide sleeves 183. The springs 184 are based on the one hand on a closed end or bottom 185 of the guide sleeves 183 and on the other hand on the immersed in the guide sleeves 183 longitudinal ends of the guide rods 182.

The other longitudinal ends of the guide rods 182 are fixedly connected to the contact body 150, for example, inserted into these and / or glued and / or pressed and / or screwed with these.

The abutment body 150 is designed as a kind of setting table, so that the abutment device 100 can be used in total as a kind of piecing aid. The plant body 150 is for example, plate-like. The contact body 150 has, for example, a contact surface 151, which is substantially planar. For example, a rubber coating or at least an elastic and / or slip-resistant coating 154 is provided on the abutment surface 151 in order not to damage a workpiece W when the abutment device 100 is parked thereon or the workpiece is processed with the hand-held machine tool 10 or in order to prevent the abutment device 100 from slipping on the workpiece W.

The lining 154 has, for example, a resilient nub structure 152, wherein the nubs are preferably frontally planar, so that in any case the contact body 150 can be securely applied to the workpiece W.

It is within the scope of the invention, not only in the embodiment according to the drawing, also possible that just a sliding is desired, that is provided instead of the anti-slip lining a sliding coating which can slide on the workpiece W. In this way, the hand-held machine tool can be guided along the workpiece, for example during workpiece machining.

A breakthrough or window 153 on the body 150 allows the view from the machine side, so for example in the position according to Figures 1-3 from above, ie from the guide arrangement 180 forth, through to the top O of the workpiece W, on which the abutment device 100 is placed.

The abutment body 150, together with the two parallel guide rods 182 a T-shaped configuration in itself, wherein the guide rods 182 are not centrally located on the contact body 150, but off-center, so that Almost a substantially L-shaped configuration arises.

A longer support leg 155 is provided, which is arranged directly in the housing longitudinal axis 21 of the housing 16, so that the center of gravity of the configuration consisting of manual machine tool 10 and abutment device 100 is supported substantially above the support leg 155. To the support leg 155 opposite, so on the other side of the two guide rods 182, another, in principle also a support function exhibiting tool leg 156 is provided. The tool leg 156 is shorter than the support leg 155 and is less far from the two guide rods 182 from.

In front of a side surface 157 of the supporting leg 155, there is a supporting edge 158, which has a linear course or has a line-shaped supporting contour. Compared to the relatively large-area side surface 157, the support edge 158 is narrow. On the support edge 158, a tool support surface 160 for supporting the flat side 47 of the tool 40 is provided. Thus, the tool 40 is in the vicinity of its cutting edge, namely in a remote from the tool holder 26 region or the end portion 43 on a support contour or support surface, namely the tool support surface 160. Thus, the tool 40 is optimally guided and supported, so that very precise saw cuts S can be introduced into the workpiece W.

The support edge 158 also forms a marking that can be positioned on a tear line on the workpiece W, for example, such that the tool support surface 160 is aligned with such a tear line. The tool 40 then cuts very precisely at the scribe line.

A preferred embodiment of the invention provides that a magnet 162 acts on the tool 40, which accordingly is ferromagnetic, in the direction of the tool support surface 160 with a force 161. The magnet 162 is embedded, for example, in the material of the contact body 150. For example, located below the pad 154 is a receptacle in which the magnet 162 is inserted. The magnet 162 in the present case is a permanent magnet.

Of course, electromagnetic principles are also possible in the invention to pull a tool in the direction of a tool support surface.

The magnet 162 and the bottom 151 are e.g. fastened with screws 186 on the plant body 150.

Only schematically, it is indicated that the tool 40 can also be acted upon by an additional guide surface 163 of a tool guide 164 in the direction of the tool support surface 160. For example, the tool guide 164 between the contact body 150 and the connection section 110 can be provided with a tool guide 164 and thus guide the tool 40 far above the contact surface 151. This measure has the particular advantage that the side 46 of the tool 40 remains free, so that the operator has a clear view of the saw cut S. Thus, apart from the support by the tool support surface 160, the tool 40 is essentially free in the visible region above the workpiece W, so that even the narrow sides 51 are freely visible laterally next to the cutting edge 52 of the tool 40.

The tool guide 164 includes, for example, schematically indicated, in cross-section U-shaped guide receivers 165, in which the blade body 42 with its respective narrow sides 53 dips laterally and is thus guided.

Of course, a continuous, over the entire transverse width of the blade body 42 extending guide surface 166 could be provided.

A slipping of the tool 40 on the support edge 158 is facilitated by having lateral bevels 159 at their longitudinal end regions.

It is also possible, although not realized in the embodiment that, for example, the support edge 158 opposite a transparent portion 167 is provided so that the saw blade or tool 40 is also guided on its other flat side, the side 46, in addition. The transparent section 167 may be integral with the abutment body 150 or may be arranged thereon as an additional element, for example in the manner of a retaining clip or the like.

An immersion depth of the guide rods 182 into the guide sleeves 183 can be limited by means of a clamp 187, which is attached to the workpiece W, for example, on one or both of the guide rods 182 in accordance with an immersion depth or penetration depth of the tool 40. The clamp 187 forms part of a stop device 190, which limits the movement of the tool holder 26 or the tool holder 15 in the direction of the contact body 150. Thus, therefore, the abutment device 100 can also fulfill the function of a depth stop.

However, the stop device 190 can also be, for example, a schematically indicated catch or a stop projection 188, which is arranged on one or both guide sleeves 183. The stopper projection 188 can be adjusted between a release position in which it does not protrude into the interior of a respective guide sleeve 183, and a stop position in which the stopper projection 188 projects into the interior of the guide sleeve 183 and thus in the path of movement of a respective guide rod 182 and during Limiting longitudinal movement.

If the stop projection 188, for example, engages in a receptacle 189 on a guide rod 182, when this is retracted into the guide sleeve 183, so that the stopper projection 188 and the receptacle 189 are opposed to each other, the longitudinal position of the contact body 150 with respect to the connecting portion 110 and thus the Tool holder 15 are fixed, so a Längsfixiereinrichtung 191 is formed. The stop projection 188 may be spring-loaded, thus forming a detent. The receptacle 189 may form part of a series of further receptacles (not shown), for example in the manner of a rack into which the stop projection 188 engage, in particular engage, at the respectively desired longitudinal position of the connection section 110 with respect to the contact body 150.

The connection section 110 comprises, for example, a machine slide 111 to which the housing 16 of the hand-held power tool 10 can be fastened. This machine slide 111 can be easily assembled and disassembled, so it's quick to hand when needed and removed when not in use. The tool 40 may remain on the tool holder 15 while the abutment 100 is being assembled or disassembled.

The installation of the abutment device 100 on the housing 16 and the hand-held power tool 10 is extremely convenient and simple, which is apparent below:

The terminal portion 110 has a plate body 112 disposed between the guide sleeves 183. At the connection portion 110, a receiving jaw 113 is provided, which engages with the holding receptacle 67 by a lateral movement (FIG. FIG. 4a ) can be brought. The receiving mouth is open in the direction of the closed or machine-side ends of the guide sleeves 183. The guide sleeves 183 project forward in front of the receiving jaw 113, so that the connecting flange of the hand-held machine tool, namely the mounting bracket 60, so to speak can be taken in the pliers, namely between the two guide sleeves 183 along in the receiving mouth 113 can be moved or In another view, the guide sleeves 183 can be moved laterally along the mounting bracket or the sleeve section 63 thereof until the sleeve section 63 is received in the receiving jaw 113.

Overall, the receiving mouth 113 together with the two forwardly projecting guide sleeves 183 forms a U-shaped arrangement.

The mounting bracket 60 has on the holding receptacle 67 on a ring receptacle 68 which is suitable together with the receiving mouth 113 to form a pivot bearing 69. Thus, a rotation of the housing 16 and the abutment device 100 relative to each other is possible, which is indicated by an arrow D in FIG. 4b is indicated.

The ring receptacle 68 has a bottom 70 on which a bottom 114 of the receiving mouth 113 rests flat. In relation to the axis of the tool shaft 14, so the Längsachsrichtung 18, support a support edge 71 and a collar 72, the receiving mouth 113 from. The collar 72 projects radially outward from the floor 70. The support edge 71 is also annular and projects slightly in front of the top of the mounting body 61. Thus, therefore, provide the support edge 71 and the collar 72, which is also annular, for a support of the receiving mouth 113 in the direction of the longitudinal axis 18, which also forms a rotation axis R for the abutment device 100 with respect to the housing 16.

The plate body 112 extends with its upper side 115 approximately parallel to the longitudinal axes of the guide sleeves 183 and to the guide axis 181. In front of the upper side 115 projects an annular support projection 116 which is supported on the inner side of the collar 72 facing the bottom 70. Of course, the top 115 could also be supported directly there.

The top 115 is opposed to a bottom 117 (one could refer to the top 115 as a first side and the bottom 117 as a second side). On this underside 117 teeth 118, 119, 120 are provided, between which locking receptacles 121 are formed. The teeth 118, 119, 120 extend around the receiving mouth 113 around. The teeth 118 are, so to speak, the end-side teeth, are located at the open end of the receiving mouth 113, so to speak, while the two teeth 120 are arranged at the bottom or apex of the receiving mouth 113 and two teeth 119 are located between the teeth 120, 118.

The teeth 120 continue to protrude in front of the bottom 117 as the teeth 119, 118. Thus, so the teeth 120 form, so to speak, gate followers or guide teeth. Side surfaces 122 of the teeth 120 are supported on a peripheral wall 73 which extends over a partial circumference of the ring receptacle 68 and the bottom 70 of the ring receptacle 68 opposite. Thus, a radial guidance is given when the two teeth 120 are supported on the peripheral wall 73. The teeth 120 and the peripheral wall 73 form retaining contours, on the basis of which the receiving jaw 113 and the holding receptacle 67 between a release position in which the retaining contours are disengaged and the abutment device 100 is not removable from the holding receptacle 67, and a use position in which the retaining contours engage each other and the abutment device 100 is removable from the holding receptacle 67, are rotatable relative to each other.

An axial guidance in the direction of the longitudinal axis direction 18 could be realized in that the teeth 120 are supported with their free end faces 125 on the support edge 71. In the embodiment, however, the U-shaped profile of the ring receiver 68 provides for axial support and guidance.

The peripheral wall 73 extends around the ring receiver 68 through an angle of about 180 °. In this angular range, therefore, the abutment device 100 can rotate about the mounting bracket 60, for example, the in FIG. 11 take shown angular position. However, the rotational movement also serves to fasten the abutment device 100 comfortably on the hand-held machine tool 10.

Starting from the angular position according to FIG. 4a Namely, the abutment device 100 is attached so to speak in the direction of the mounting bracket 60, wherein a mark 74 on the mounting bracket 60, namely, for example, on the front side 65, and a mark 123 on the connection portion 110 indicate the correct rotational position. For example, the markings 74, 123 are designed as arrows. Also in one Turning position from the other side of the housing 16 forth attaching the attachment device 100 works to the hand-held machine tool 10. For this purpose, a further mark 74 on the collar 72 is provided.

The corresponding FIG. 4b infected attachment device 100 is then rotated according to the arrow D. An inclined surface 124 on a respective outer tooth 118 allows resilient latching projection 81 of a latching device 80 is deflected past the respective outer tooth 118 and then into the next, adjacent to the tooth 118 latching receptacle 121 engages. Then, in any case, the abutment device 101 of the hand-held machine tool 10 is locked and locked.

Upon release of the latch, the abutment 100 may be rotated on the mounting bracket 60, e.g. to take an angular position to the housing 16 or for disassembly.

The detent recesses 121 are associated with further markings 75, which are also arranged on the end face 65 of the mounting bracket 60, so are well visible. An angular distance between the detent recesses 121 and thus also the markings 75 corresponds to an angular distance of recesses between the teeth 29 on the tool holder 26 and the teeth 49 of the tool 40. Based on the locking device 80, the abutment device 100 in the same angular positions with the mounting bracket 60 and Thus, the housing longitudinal axis 21 of the housing 16 of the hand-held machine tool 10 are latched, in which the tool 40 is mounted relative to the housing longitudinal axis 21. Is in FIG. 11 represented, exemplary for an angular position. The tool longitudinal axis 54 of the tool 40 then aligns, for example, with a guide axis 181 of the abutment device 100.

It can be seen that the assembly and also the adjustment of an angular position of the abutment device 100 relative to the housing 16 is simple. The operation of the locking projection 81 is very easy. The latching projection 81 is provided on a latching pawl 82 pivotally connected by means of a pivot bearing 83 between an engagement position in which the latching projection 81 has entered one of the latching receptacles 121, and a disengaged position in which the abutment device 100 based on the pivot bearing 69 relative to the mounting bracket 60 can turn. The pivot bearing 83 comprises, for example, a pin 84 which penetrates a corresponding bearing block on the fastening body 61 or the sleeve portion 63. A handle 85, for example, with a corrugation, facilitates the operation of the latch 82. The latch 82 is spring-loaded in the engaged position, for example by a non-visible spring arrangement. The spring arrangement may comprise, for example, a leg spring, through which the pin 84 is inserted.

The latching projection 81 has lateral oblique surfaces 86, which are assigned inter alia to the inner flanks of the latching receptacles 121. The inclined surfaces 86 facilitate, for example, the engagement of the latching projection 81 in the latching receptacles 121. Appropriately, an inclination of the inclined surfaces 86 is such that at an abrupt impact load, for example, when the combination of hand-held machine tool 10 and abutment device 100 falls to the ground, the latch 82 out of engagement with the latch receptacles 121, so that the abutment device 100 is rotatable relative to the housing 16 and thereby reduces shock loading. However, the inclined surfaces 86 also facilitate that the latching projection 81 slides along the inclined surfaces 124, which in principle represent chamfers, more easily.

The mounting bracket 60 forms a header adapter 76 that allows the abutment device 100 to be adapted to the handheld machine tool 10.

But an operator can also optionally in the so pre-equipped hand-held machine tool 10 in the Figures 12-15 shown other intent, namely a conditioning device 200 easily fasten. This has in principle the same mounting components in the region of its connection portion 210, namely the not further explained receiving mouth 113 and the corresponding locking and guiding components. However, unlike the abutment device 200, the abutment device 100 is designed as a pure depth stop.

Of the connection portion 210 is a holding body 230 radially from which has a guide receptacle 231 for a rod 232. In the guide receptacle 231, the rod 232 is guided against rotation with respect to its longitudinal axis 233. Namely, the rod 232 has a polygonal, substantially rectangular, outer peripheral contour which fits in a form-fitting manner into the guide receptacle 231. In addition, guide ribs 234 extending in the direction of the longitudinal axis 233 can still be provided, for example, which fit into corresponding grooves of the guide receptacle 231.

On a longitudinal side 235 of the rod 232, a toothing 236 is provided which may extend over a portion of the rod 232 or the entire rod 232. The toothing 236 having portion 237 is received in the guide receptacle 231 longitudinally displaceable along the longitudinal axis 233. This is also clear by an arrow on the housing of the holding body 230.

By means of a rod-locking device 240, the rod 232 can be fixed in its respective longitudinal position corresponding to the toothing 236 or another arrangement of locking receptacles. For example, a detent body 241 is arranged in the interior of the holding body 230. The locking body 241 is advantageously acted upon by a spring in the direction of a detent position, in which it engages in the toothing 236 and thus the rod 232 is fixed or latched with respect to the longitudinal position.

By means of a pushbutton 243, the detent body 241 can be actuated, namely disengaged from the toothing 236. The toothing 236 thus includes locking receptacles. The push button 243 is spring-biased by a spring 242 in the direction of an engagement position of the detent body 241, which ultimately results in that it is spring-loaded in the direction of latching. The longitudinal position of the rod 232 is thus easily changed by a simple pressure on the push button 243 and a corresponding sliding operation of the rod 232.

An abutment body 250 is located on the rod 232 at the front, that is to say in the assembled state of the tool 40. The abutment body 250 comprises a stop leg 252 rotatable relative to the rod 232 by means of a pivot bearing 251. For example, a bearing section 238 is provided in extension of the section 237 of the rod 232 provided, which is designed in the manner of a journal. The bearing pin engages in a bearing receptacle 253 of the contact body 250, so that it can pivot about the longitudinal axis 233 of the rod 232. In the interior of the bearing receptacle 253, a spring 254 is arranged, which is supported on a step 255 of the bearing receptacle 253 on the one hand and on the other hand at the head of a screw 256, which the bearing receptacle 253 penetrates and is screwed into a screw-in opening 257 at the free end of the rod 232.

The screw 256 thus has a double function, namely, on the one hand to axially secure the rotary bearing 251, on the other hand, but also to hold the spring 254, which acts on the contact body 250 in the direction of the rod 232. This has the purpose that locking contours 261 are applied to a rod 232 facing the outside of a bottom wall 263 of the bearing receptacle 253 in the direction of locking contours 262, which are provided on a flange 258 between the portion 237 and the bearing portion 238 of the rod 232. Thus, so to speak, the stop leg 252 engages in a plurality of defined angular positions in a rotation about the longitudinal axis 233 and retains its respective rotational position. The latching contours 261 and 262 form components of a plant leg latching device 260.

From a bearing receptacle 253 having sleeve portion 259 of the stop leg 252 projects from an arm 265, at the free end of an abutment piece 266 is arranged. The abutment piece 266 is designed, for example, as a cap, which is attached to a support projection 267, which may also be designed as a bearing projection. It is preferred if the abutment piece 266 can rotate on the support projection 267.

Claims (15)

Hand machine tool, in particular Oszillationshandwerkzeugmaschine, comprising a housing (16) and in the housing (16) arranged drive (11) for driving a tool holder (15) which is arranged on a tool shaft (14) and on the particular as a cutting tool or tool (40) adapted to be detachably mounted, wherein the hand-held machine tool (10) has a mounting bracket (60) for removably mounting a contactor (100; 200) with a contact body (150; 250) for engagement with a hand-held Machine tool (10) to be machined workpiece (W), characterized in that the mounting bracket (60) from the tool shaft (14) penetrated by holding receptacle (67) and the abutment device (100; 200) at a connection portion (110; 210) a laterally open receiving jaw (113), the transversely to a longitudinal axis direction (18) of the tool shaft (14) arranged on the tool holder (26) tool (40) in one handle with the holding receptacle (67) can be brought, so that the contact device (100; 200) with mounted tool (40) on the hand-held machine tool (10) can be mounted or is removed from this again. Hand machine tool according to claim 1, characterized in that the holding receptacle (67) on an outer periphery of the tool holder (26) and / or on a particular ago the housing (16) of the hand-held machine tool (10) is arranged above the machine projection (24). Hand machine tool according to claim 1 or 2, characterized in that the holding receptacle (67) and in engagement with the holding receptacle (67) located receiving mouth (113) form a pivot bearing (69), so that the contact device (100, 200) and the housing (16) of the hand-held machine tool (10) can be rotated relative to one another and held captive against one another over at least one predetermined angle of rotation range, in particular approximately 240 °. Hand machine tool according to one of the preceding claims, characterized in that holding contours are provided between the mounting bracket (60) and the connecting portion (110, 210), in particular between the retaining seat (67) and the receiving jaw (113), and the receiving jaw (113 ) and the holding receptacle (67) between a release position in which the retaining contours are disengaged and the abutment device (100; 200) is not removable from the retaining receptacle (67), and a use position in which the retaining contours engage and the abutment device (67). 100, 200) is removable from the holding receptacle (67), are rotatable relative to each other. Hand machine tool according to one of the preceding claims, characterized in that on the holding receptacle (67) and / or the receiving mouth (113) at least one rotation angle coding for mounting the abutment device (100; 200) on the holding receptacle (67) in a predetermined angular position is and / or that it has at least two different rotational angle positions of the abutment device (100; 200) relative to the housing (16) of the hand-held machine tool (10) associated with rotational angle encodings, the different in particular predetermined, tool angular positions are assigned, in which the tool (40) on the tool holder (15) can be mounted. Hand machine tool according to one of the preceding claims, characterized in that it comprises a clamping device and / or a latching device (80) with which the abutment device (100; 200) on the mounting bracket (60), in particular in at least two different angular positions, clamped or lockable. Hand machine tool according to claim 6, characterized in that the latching device (80) comprises a resilient latching projection (81), in particular a detent pawl (82), which can be brought into engagement with at least one latching receptacle, wherein the latching projection (81) on the Holding receptacle (67) and the at least one latching receptacle on the receiving mouth (113) or the at least one latching receptacle on the holding receptacle (67) and the latching projection (81) on the receiving mouth (113) is arranged. Hand machine tool according to claim 6 or 7, characterized in that the latching projection (81) with the at least one latching receptacle by a rotational movement, in particular about the Längsachsrichtung (18) of the tool shaft (14), engageable and / or that at least one Inclined surface, in particular on the latching projection (81) and / or on the at least one latching receptacle is provided, for deflecting the at least one latching projection (81) in a remote from the at least one detent recess disengaged position transversely to an engagement axis, along which the latching projection ( 81) can be brought into engagement with the at least one latching receptacle extends. Hand-held power tool according to one of the preceding claims, characterized in that the mounting bracket (60) as a releasably, in particular by means of a screw on the housing (16) of the hand-held machine tool (10) attachable adapter attachment (76) for fastening the system ( 100, 200) is designed. Hand machine tool according to one of the preceding claims, characterized in that the holding receptacle (67) as a ring around the tool holder (26) around extending ring receptacle (68) or circumferential groove is configured or such a ring receptacle (68) or comprises a circumferential groove. Hand machine tool according to claim 10, characterized in that the circumferential groove or ring receptacle (68) in cross-section U-shaped or L-shaped and a bottom of the circumferential groove or ring receiver (68) opposite a peripheral wall (73) is arranged, so that a the receiving jaw (113) is formed with respect to the Längsachsrichtung (18) of the tool shaft (14) radially supporting and in the sense of rotation about the tool shaft (14) around leading guide channel. Hand machine tool according to one of the preceding claims, characterized in that the abutment device (100; 200) has or forms a depth stop with which a penetration depth of the tool (40) into the workpiece (W) can be limited and / or the abutment device (100 200) comprises the machine body (150; 250), which is designed in particular as a table, and a machine slide (111) which has or has the connection section (110; 210) with the receiving mouth (113) and which can be moved relative to one another by means of a guide arrangement (180; 280) are, so the machine slide (111) can be moved with the housing (16) of the hand-held power tool (10) through the guide assembly (180; 280) relative to the abutment body (150; 250) in contact with the workpiece (W). Hand machine tool according to one of the preceding claims that extends next to the contact surface (151) a tool support surface (160) for supporting a flat side (47) of the tool (40). Hand machine tool according to one of the preceding claims or the preamble of claim 1, characterized in that the abutment device (100; 200) has a relative to the connection portion (110; 210) with the receiving mouth (113) length adjustable rod (232) and a relative to the rod (232) rotatable, the plant body (150; 250) forming stop limb (252) having a stop surface for abutment on the workpiece (W), expediently a rod-locking device (240) for locking the rod (232) in at least a longitudinal position and / or a stop leg locking means (260) for locking the stop leg (252) in at least one rotational position relative to the rod (232) is provided, wherein the rod (232) is suitably guided against rotation on the connection portion (110; 210) and in particular in different longitudinal positions with respect to the connecting portion (110, 210) can be fixed. An apparatus (100; 200) for a hand-held power tool (10), in particular an oscillating hand-held power tool, comprising a housing (16) and a drive (11) arranged in the housing (16) for driving a tool holder (15) attached to one Tool shaft (14) is arranged and on the one in particular as a cutting tool or drilling tool configured tool (40) is detachably mountable, wherein the abutment device (100; 200) forms a system component of a system comprising a mounting bracket (60) for releasably mounting the abutment device (100; 200), wherein the mounting bracket (60) the hand-held machine tool (10) can be fastened detachably or forms part of the hand-held machine tool (10), wherein the abutment device (100; 200) has an abutment body (150; 250) for engaging with the hand-held machine tool (10) machining workpiece (W), characterized in that the mounting bracket (60) has a holding receptacle (67) penetrated by the tool shaft (14) when the abutment device (100; 200) is in use and the abutment device (100; 110, 210) has a laterally open receiving jaw (113), which extends transversely to a longitudinal axis direction (18) of the tool shaft (14) when the tool (40) is arranged on the tool holder (26) handle with the holding receptacle (67) can be brought, so that the contact device (100; 200) with mounted tool (40) on the hand-held machine tool (10) can be mounted or is removed from this again.

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