EP3965996A1 - Vorsatzgerät und hand-werkzeugmaschine mit vorsatzgerät - Google Patents

Vorsatzgerät und hand-werkzeugmaschine mit vorsatzgerät

Info

Publication number
EP3965996A1
EP3965996A1 EP20726018.3A EP20726018A EP3965996A1 EP 3965996 A1 EP3965996 A1 EP 3965996A1 EP 20726018 A EP20726018 A EP 20726018A EP 3965996 A1 EP3965996 A1 EP 3965996A1
Authority
EP
European Patent Office
Prior art keywords
angular
rotation
attachment
drive
fixing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20726018.3A
Other languages
German (de)
English (en)
French (fr)
Inventor
Alexander LAUTENSCHLÄGER
Peter Seiler
Benno GMÜNDER
Stefan Ziegler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Festool GmbH
Original Assignee
Festool GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Festool GmbH filed Critical Festool GmbH
Publication of EP3965996A1 publication Critical patent/EP3965996A1/de
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/007—Attachments for drilling apparatus for screw or nut setting or loosening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007—Connections or joints between tool parts
    • B25B23/0028—Angular adjustment means between tool head and handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/02—Construction of casings, bodies or handles

Definitions

  • the invention relates to an attachment for a hand machine tool, in particular a screwdriver or drill, the attachment having a drive section with a drive element and an output section with a drive element for driving a work tool, the drive element having a machine output element of the manual Machine tool for driving the attachment can be coupled and is connected or coupled to the output element via a gear for Antrei ben of the output element, and wherein the drive section has a fastening device on one drive side for the detachable attachment of the attachment to the hand-held machine tool, which is non-rotatable with respect to an angular positioning axis.
  • the attachment is a so-called angle attachment in which the drive element and the output element rotate about axes of rotation that are angled to one another and are coupled to one another via an angular gear.
  • the attachment is slightly detached from the hand machine tool and fixed again in a different angular position on the hand machine tool. The handling is a bit cumbersome, however.
  • an attachment of the type mentioned that the output part relative to the drive part by the angular position
  • the positioning axis can be rotated in at least two different angular positions and the respective angular position can be fixed using an angular fixing device which has a drive angular fixing body and an output angular fixing body, at least one of the angular fixing body relative to the other angular fixing body by an actuating element of an actuating device of the attachment along an adjustment path between an angular fixing position in which the angular fixing bodies fix the output part in a rotationally fixed manner with respect to the drive part, and an angular adjustment position in which the angular fixing bodies release the output part to rotate about the angular positioning axis with respect to the drive part.
  • the drive angle fixing body is for example arranged in a rotationally fixed manner with respect to the angular positioning axis on the drive section and / or assigned to the drive section.
  • the output angular fixing body is preferably arranged non-rotatably on the output part and / or assigned to the output part.
  • the angular fixing bodies are preferably in positive engagement with one another.
  • the angular fixing bodies are preferably out of engagement. It is advantageous if, in the angular adjustment setting, one of the angular fixing bodies is movable relative to the other angular fixing body and / or the angular fixing bodies are movable relative to one another.
  • the one angular fixing body preferably enables and / or allows a relative movement of the other angular fixing body in the angular adjustment.
  • the adjustment path along which at least one or both angular fixing bodies can be moved relative to one another, can run in different directions.
  • the adjustment path runs radially with respect to the angular positioning axis.
  • an angle fixing body in particular the output angle fixing body, can be adjusted radially with respect to the angular positioning axis to the other angle fixing body, for example the drive angle fixing body, so for example from radially outward to radially inward with respect to the angular positioning axis or the like.
  • the adjustment path can run transversely to the angular positioning axis.
  • a circular track or curvature track possible as an adjustment track.
  • the adjustment path runs in an arc and / or circular manner around the angular position axis.
  • the drive angular fixing body can be arranged on the drive part in a rotationally fixed manner with respect to the angular positioning axis.
  • the drive angle fixing body can be brought into a rotationally fixed position with respect to the drive part with respect to the angular positioning axis.
  • the drive angular fixing body it is possible for the drive angular fixing body to be adjustable between a position that is non-rotatable with respect to the angular positioning axis and a position that is rotatable with respect to the angular positioning axis.
  • the actuating device can be used for this purpose.
  • the drive angle fixing body is adjustably mounted on the attachment device, in particular an attachment housing thereof, in relation to the angular positioning axis between a position non-rotatably connected to the hand machine tool and a position rotatable with respect to the hand machine tool.
  • the drive angle fixing element is advantageously mounted so that it can be linearly displaced between the two aforementioned positions on the attachment or its attachment housing or with respect to the attachment housing of the attachment.
  • Hand machine tool in particular a screwdriver or drilling machine
  • the attachment having a drive section with a drive element and an output section with an output element for driving a work tool, the drive element being able to be coupled to a machine output element of the hand machine tool for driving the attachment and via a gear for driving the output element is connected or coupled to the output element
  • the drive section having a fastening device on a drive side for releasably fastening the attachment to the hand-held machine tool, and wherein the output section is relative to the
  • the drive part can be rotated around an angular positioning axis in at least two different angular positions and the respective angular position can be fixed using an angle fixation device, which has a drive angle fixing body which is non-rotatably arranged on the drive part and / or is assigned to the drive part and is non-rotatably arranged on the output part and / or the output part associated with output angular fixing bodies, which are in positive engagement with each other in an angular fixing position and fix the output
  • the attachment has a drive section and an output section, the output section being pivotable or rotatable about the angular positioning axis relative to the drive section in order to change a position of the axis of rotation of the output element relative to the axis of rotation of the drive element, for example to other angular positions (for example with an angle attachment) or in another parallel position (for example with an eccentric attachment).
  • the fixing or locking with respect to the angular positioning axis is achieved in a reliable and simple manner, namely by means of the at least one, e.g. radially adjustable or rotatable, angular fixing body or the plurality of adjustable angular fixing body, whose or whose actuation is possible using the actuating element.
  • the for example transverse to the angular positioning axis, for example radial or arcuate relative adjustment of the angular fixing body relative to the angular positioning axis advantageously enables the support of high torques about the angular positioning axis.
  • the output section is preferably rotatable or pivotable exclusively about the angular positioning axis with respect to the drive section.
  • the Winkelpositio nierachse is preferably a single or single axis about which the drive part is pivotable or rotatable relative to the drive part.
  • the angular positioning axis is preferably coaxial with an axis of rotation of the drive element and / or with a machine axis of rotation of the machine output element when the attachment is attached to the hand machine tool.
  • the attachment is, for example, a so-called eccentric attachment, i. H. that the axes of rotation of the drive element and the output element are parallel to one another, but eccentric.
  • the attachment is an angle attachment, i. H. that the axes of rotation of the drive element and the output element are angled to one another, in particular at right angles to one another. Other angular positions or Win kellagen are possible.
  • the transmission between the drive element and the output element does not have any speed-changing or torque-changing property, ie. H. that the speeds and / or the torques of the drive element and output element are identical.
  • the transmission between the drive element and the output element can also be a transmission or reduction gear, d. H. that the transmission of the attachment reduces the speed of the drive element compared to the output element or it increases.
  • a switchable transmission would also be conceivable, i. H. that under different gear ratios between drive element and output selement are switchable.
  • the fastening device and / or the angle fixing device has anti-rotation contours, in particular an anti-rotation body with anti-rotation contours, for engaging in the hand machine tool with respect to the angular positioning axis on the hand-held machine tool, in particular its machine housing.
  • anti-rotation contours of the hand machine tool or the drive part of the attachment are advantageously seen for frontal or frontal engagement in the counter-anti-rotation contours.
  • the counter-rotation lock contours are provided, for example, on a front side or end side of the hand machine tool on which the machine output element is arranged.
  • the counter-rotation lock contours can be arranged in a stationary manner with respect to the drive part of the attachment device.
  • the counter-rotation lock contours can be arranged in a housing or an interior space of the housing of the attachment.
  • the anti-rotation contours preferably extend annularly or partially annularly around the drive element. It is also advantageous if the counter-rotation lock contours extend annularly or partially annularly around the machine output element.
  • the anti-rotation contours and / or counter-anti-rotation contours include, for example, toothing or toothing.
  • the contours for locking against rotation can comprise or can be formed by a single projection for locking against rotation or a single locking for locking receptacle.
  • the anti-rotation contours are arranged, for example, on the drive angle fixing body.
  • the anti-rotation contours can, however, also be arranged on an anti-rotation body separate from the drive angle fixing body, in particular an anti-rotation body of the fastening device.
  • the angle fixing device can form part of the fastening device, for example in order to implement the anti-twist device with respect to the angular positioning axis on the hand machine tool.
  • the fastening device and / or a component of the fastening device, for example the anti-rotation device can also be part of the angle fixing device.
  • the fastening device independently of the angular fixing device, provides a rotationally fixed fixing on the hand machine tool with respect to the angular positioning axis.
  • the anti-rotation contours can be brought into engagement with the counter-anti-rotation contours by an insertion movement in an insertion direction along a insertion axis that is parallel to the Winkelpositio nierachse or has a directional component parallel to the Winkelpositionier axis.
  • the plug axis is parallel to the machine axis of rotation of the machine output element and / or parallel to the axis of rotation of the drive element of the attachment and / or parallel to the angular positioning axis.
  • the angular fixing device for fixing or locking the output part relative to the drive part with respect to the angular position can be adjusted between the angular fixing position and the angular adjustment when the drive part is or remains connected to the hand machine tool using the fastening device.
  • fastening device for fastening the attachment is provided and / or designed in engagement with a fastening part that is stationary with respect to a machine housing of the hand-held power tool or that is fixedly arranged on the machine housing.
  • the fastening device has a support surface for supporting the attachment on the hand machine tool in a plug-in direction and / or with respect to a plug-in axis. It is preferred if the support surface is arranged stationary on the attachment with respect to the plug-in direction or plug-in axis.
  • the anti-rotation contour can be stationary with respect to the support surface. It is also possible, however, for the aforementioned anti-rotation contour to be movable relative to the support surface, in particular to be linearly movable.
  • the plug-in direction is preferably parallel or coaxial to the plug-in axis already mentioned and / or to the angular positioning axis and / or to a Machine axis of rotation of the machine output element and / or parallel to the axis of rotation of the drive element of the attachment.
  • the anti-rotation contours already mentioned can be arranged on the support surface.
  • Hand machine tool preferably has a complementary support body for supporting the support surface of the fastening device.
  • the contours of the hand-held machine tool, which are secured against rotation, are advantageously arranged on the support body of the hand-held machine tool.
  • the fastening device has at least one locking body adjustable between a fixing position and a release position with at least one locking contour that engages in the fixing position in a fixing position for a tensile holding of the attachment on the hand machine tool against the insertion direction a counter-locking contour of the hand machine tool and is in the release position for removing the attachment from the hand machine tool out of engagement with the counter-locking contour.
  • the locking body is an annular body rotatably mounted about the plug-in axis or angular positioning axis and / or the locking contour is a bayonet contour and / or the locking body is rotatably mounted about an axis of rotation along which the insertion direction runs.
  • the locking body is designed as an annular body on which two or more bayonet contours are arranged.
  • the bayonet contours or locking con structures have, for example, inclined surfaces or clamping surfaces that rise or fall in an annular manner with respect to the axis of rotation.
  • the anti-rotation body and the drive angle fixing body can be separate components from one another.
  • the anti-rotation body can be arranged on a housing of the attachment or fixed or non-rotatably, but for example linearly movable, in this.
  • the drive angular fixing body is connected to the anti-rotation body in a rotationally fixed manner with respect to the angular positioning axis and / or parallel to the angular positioning axis.
  • the drive angle fixing body forms the anti-rotation body or is integral with it.
  • the anti-rotation body can be arranged on the front-end device so that it cannot rotate and move with respect to the Winkelpo sitionierachse. It is also possible, however, for the anti-rotation body and / or the drive angle fixing body to be mounted on the attachment device with respect to the angular positioning axis, particularly linearly movable between an anti-rotation position and a rotation-release position, the anti-rotation contours being adjusted in the anti-rotation position towards the counter-anti-rotation contours, engage in particular in the counter-anti-rotation contours, and are moved away from the counter-anti-rotation contours in the rotation release position, in particular are out of engagement with the counter-anti-rotation contours.
  • the anti-rotation body and / or the drive angle fixing body can be mounted on the attachment device with respect to the angular positioning axis, particularly linearly movable between an anti-rotation position and a rotation-release position, the anti-rotation contours being adjusted in the anti-rotation position towards
  • the drive side protrudes further in front of the drive side than in the release position.
  • the anti-rotation body formed by the drive angle fixing body can be adjustable in such a way that it is movable between the anti-rotation position and the rotation-release position. Also, and especially when the anti-rotation body is adjustable between the rotation release position and the anti-rotation position, it is advantageous if the fastening device, when the anti-rotation element is shifted or adjusted between the anti-rotation position and the anti-rotation position, is used to hold the attachment in a fixed position with respect to the machine housing. Machine tool is designed.
  • the output angular fixing body in the angular fixing position of the angular fixing device fixes the anti-rotation body formed in particular by the drive angular fixing body in the anti-rotation position and / or in the angular adjustment position releases the anti-rotation body to move into the rotation-release position.
  • the rotation release position corresponds, for example, to the angular adjustment, the anti-rotation position of the angular fixing position.
  • the output angled fixing body is designed for adjusting the anti-rotation body from the rotation release position into the anti-rotation position. For example, inclined surfaces or similar other actuating surfaces can be provided between the output angled fixing body and the anti-rotation body.
  • a dedicated actuating handle can be provided for adjusting the anti-rotation body from the anti-rotation position into the rotation-release position.
  • a grip element or the like other actuation handle can be connected to the anti-rotation body or coupled in terms of movement.
  • the actuating element is coupled motion-coupled to the anti-rotation body for driving it into the rotation release position. In this case, the actuating element adjusts the angle fixing body of the angle fixing device and also an adjustment of the anti-rotation body.
  • a release gear for adjusting the anti-rotation body or angular fixing body from the anti-rotation position into the rotation-release position.
  • the release gear includes, for example, one or more inclined surfaces.
  • the release gear can act, for example, in the sense of a force amplification and / or a force deflection, for example a deflection of a rotary actuation of the actuating element into a linear movement of the torsional locking body.
  • the release gear thus comprises, for example, a deflection gear and / or a force-amplifying gear or the like.
  • the anti-rotation body is spring-loaded into the anti-rotation position by a spring arrangement.
  • the spring arrangement comprises, for example, one or more springs, in particular coil springs.
  • the spring arrangement preferably acts along a linear axis, along which the anti-rotation body is mounted so as to be linearly movable on the attachment or its housing.
  • the linear axis preferably corresponds to the plug-in axis along which the attachment can be plugged onto the hand machine tool.
  • a preferred concept provides that there is clearance between the actuating element and the at least one adjustable anti-rotation body, which enables the at least one adjustable angular fixing body to be adjusted from the angular fixing position to the angular adjustment position prior to an adjustment of the anti-rotation body from the anti-rotation position to the anti-rotation position . It is thus possible, for example, that the actuating element first adjusts the output angle fixing body or the output angle fixing body from the angle fixing position into the angular adjustment position or enables an adjustment of the output angle fixing body from the angle fixing position into the angle adjustment position. Subsequently, the adjustment of the anti-rotation body from the anti-rotation position into the rotation-release position can take place or this takes place.
  • the aforementioned release gear acts, for example, in a supporting manner against the force of this spring arrangement when adjusting the anti-rotation body from the anti-rotation position into the rotation-release position.
  • the spring arrangement forms, for example, a first spring arrangement, while a spring arrangement, which is described below and which is used to actuate the angle fixing device in the angular fixing position and / or acts directly on the actuating element, forms a second spring arrangement.
  • the attachment has a spring arrangement for actuating the angle fixing device in the angle fixing position.
  • the Federan arrangement includes, for example, one or more coil springs or torsion springs.
  • the spring arrangement is a spring, especially particular includes a helical spring or torsion spring, which is penetrated by the Winkelposi tionierachse.
  • the spring for example the torsion spring or the helical spring, preferably has a diameter which corresponds approximately to the diameter of the actuating element.
  • the angle fixing device is, so to speak, reliably impacted in the direction of the angle fixing position by the spring arrangement.
  • a leg spring with one or more turns is easily possible as a torsion spring, for example.
  • the spring arrangement acts directly on the drive angle fixing element and / or the output angle fixing element. It is preferred if the spring arrangement acts on the actuating element of the actuating device in the sense of adjusting the angular fixing device into the angular fixing position.
  • the actuating element can be designed as an actuating slide, actuating lever, actuating ring or the like. It is advantageous if the actuating element extends annularly or partially annularly around the angular positioning axis.
  • the actuating element is designed as an annular body. It is particularly advantageous if an annular or partially annular locking body of the fastening device and the annular or partially annular actuating element with respect to the angular positioning axis and / or the machine axis of rotation of the machine output element and / or the drive element are arranged next to one another, in particular directly next to one another.
  • the actuation device in particular the actuation element, to be operated by a motor, for example by means of an actuating magnet, servomotor or the like.
  • a manual concept is preferred.
  • the actuating element of the actuating device can be actuated manually, in particular exclusively manually.
  • the actuating element it is possible for the actuating element to act directly, that is to say without an interposed gear, on the angular fixing body that is to be actuated.
  • a transmission gear in particular an inclined surface gear and / or a deflecting gear for force deflection of directions of movement of the actuating element and the angular fixing body to be operated, is arranged between the angular fixing body to be actuated and the actuating element which actuates the angular fixing body.
  • the deflection gear deflects movement of the actuating element in a first direction of movement, in particular a rotary movement of the actuating element, into movement of the actuated angular fixing body in a second direction of movement, in particular into a linear movement.
  • the transmission gear can, for example, steer a direction of force and / or amplify a force of the actuating element.
  • the transmission gear can, for example, be or comprise a release gear for adjusting the angular fixing device from the angular fixing position into the angular adjustment position.
  • the transmission gear can also be or comprise a fixing gear for adjusting the angular fixing device from the angular adjustment position into the angular fixing position.
  • the attachment preferably has an attachment housing.
  • the actuating element is, for example, mounted movably relative to the attachment housing and / or to the drive part and / or to the drive part, for example mounted so as to be linearly displaceable and / or rotatable.
  • the actuating element can be actuated with at least one directional component radially to the angular positioning axis, for example exactly radially to the angular positioning axis. It is preferred if the actuating element is mounted transversely, in particular at right angles, to the angular fixing body to be actuated on the attachment or the attachment housing of the attachment or the drive part or the output part.
  • a transversely movable mounting can be or comprise, for example, a sliding mounting and / or a pivot mounting, in particular a pivot mounting about the angular positioning axis. It is also advantageous if the actuating element is linear with respect to the attachment and / or its attachment housing is mounted.
  • the actuating element It is also advantageous to mount the actuating element parallel to the angular positioning axis on the attachment or the attachment housing. It is also possible for the actuating element to be rotatably mounted on the attachment or its attachment housing, for example rotatable about the angular positioning axis.
  • the actuating element is mounted rotatably about the angular positioning axis, for example rotatable with respect to the drive section.
  • the actuating element has at least one rotary driving contour for rotary driving the output part about the angular positioning axis.
  • the output section has at least one rotary driving counter-contour for the rotary driving contour.
  • a plurality of rotary driving contours and rotary driving counter-contours are preferred which, for example, have angular distances with respect to the angular positioning axis and / or are arranged in a ring with respect to the angular positioning axis.
  • the at least one rotary driving contour can be designed, for example, as a rotary stop that strikes the at least one rotary driving counter-contour.
  • the at least one rotary driving counter-contour has, for example, a rotary driving counter-contour which is arranged on a housing section of the output part of the auxiliary housing.
  • the at least one rotary driving counter-contour can also comprise or have a rotary driving counter-contour which is arranged on a rotary driving body which is connected or rotatably coupled to the output part, for example on the angular fixing body which can be actuated by the actuating element.
  • this rotary driving body or angle fixing body is arranged in a rotationally fixed manner on the output section with respect to the angular positioning axis or is rotatably coupled to the output section.
  • the rotary driving body or angular fixing body can be mounted so as to be movable parallel to the angular positioning axis with respect to the output section.
  • the at least one rotary driving contour strikes the rotary driving body or angular fixing body or its rotary driving counter-contour, it takes the rotary driving body or angular fixing body with it in the sense of rotating about the angular positioning axis, which in turn rotates the output part about the angular positioning axis.
  • the actuating element has a rotational clearance for a rotational movement about the angular positioning axis with respect to the Abtriebspar tie in such a way that the actuating element can be rotated from a rotational position assigned to the angular fixing position into a rotational position assigned to the angular adjustment before the at least one rotational driving contour in dre coming engagement with the output part arrives.
  • the angle fixation is first releasable before the output section is rotated about the angular positioning axis by further turning the actuating element.
  • an angular fixing body which is integral with the actuating element or is directly coupled in motion, in particular rotationally coupled, for example the output angular fixing body has at least one support surface which supports, in particular locking, the angular fixing body actuated by the actuating element in the angular fixing position.
  • the support surface can also be referred to as a locking surface.
  • several support surfaces, in particular at angular intervals with respect to the angular positioning axis are arranged on the angular fixing body.
  • Each of the support surfaces is assigned a counter-support surface of the other angle fixing body, for example the drive angle fixing body.
  • the support surface and the associated Ge counter-support surface are preferably orthogonal or approximately orthogonal to the angular positioning axis.
  • the actuating element has at least two rotary drive contours, between which a support surface is provided, in particular with the same Winkelab stood. Based on the rotary drive contours the actuator take the output part in opposite directions of rotation or rotate actuation.
  • One embodiment can provide that the actuating element is integrally or firmly connected to at least one angle fixing body, for example with the output angle fixing body.
  • One of the angular fixing bodies is preferably arranged radially on the inside and the other on the radial outside with respect to the angular positioning axis. It is possible for the angular fixing body mounted radially to the angular positioning axis to be a radially inner angular fixing body, while the angular fixing body, which is radially stationary with respect to the angular positioning axis, is arranged radially on the outside. It is also conceivable that both angular fixing bodies, the output angular fixing body and the drive angular fixing body, are adjustable and mounted radially with respect to the angular positioning axis. A concept shown in the drawing is preferred, in which the at least one angular fixing body which is radially adjustable with respect to the angular positioning axis is arranged radially outward with respect to the other angular fixing body.
  • One or both of the angular fixing bodies in particular the radially inner or a radially inner angular fixing body, can for example be designed as a sleeve body or be formed by a sleeve body.
  • One of the angular fixing bodies for example the sleeve body, is advantageously penetrated by a shaft body, in particular a drive element of the attachment.
  • At least one of the angular fixing bodies is or comprises a locking or fixing ball.
  • a ball instead of a ball, however, a roller or the like, for example, other rolling bodies would also be suitable as the angle fixing body.
  • At least one of the angular fixing bodies in particular the or a radially positionally with respect to the angular positioning axis has fixed angular fixing body, a spherical cap for receiving the radially movable angular fixing body.
  • a fixation or locking of the angular fixing device in the angular fixing position can easily be realized with a pairing consisting of two angular fixing bodies, namely an output angular fixing body and a drive angular fixing body.
  • the at least one angular fixing body adjustable along the adjustment path is part of an arrangement of at least two, preferably at least three, actuatable by the actuating device, in particular arranged in a ring around the angular positioning axis , Angular fixing bodies bil det, the angular distances aufwei sen with respect to the angular positioning axis and each movable, in particular radially, with respect to the angular positioning axis are movably mounted.
  • the angle fixation body can be arranged stationary on a Garkör pern. It is also possible for an angle fixing body to have several support surfaces or angle fixing surfaces which are arranged in the circumferential direction in a ring shape or at angular intervals around an axis of rotation about which the angle fixing body can be rotated, for example the angular positioning axis.
  • the drive angular fixing body is the angular fixing body which is radially movable relative to the angular positioning axis.
  • An advantageous concept provides that the output angular fixing body is stationary radially with respect to the angular position and the drive angular fixing body includes or is formed by the at least one angular fixing body movably mounted along the adjustment path.
  • this at least one angular fixing body movable along the adjusting path can be rotated about the angular positioning axis or is movable radially to the angular positioning axis.
  • one of the angle fixing bodies for example the drive angle fixing body, has at least one link body, in particular a radial projection, which is inserted into a guide track or guide link of the other angle fixing body, for example the output angle fixing body. engages.
  • a support contour and / or latch contour for example a support surface or latch surface, for supporting or locking the drive angle fixing body in the angled fixing position is preferably provided on a respective guide slot or guide track.
  • the link follower is supported in the angular fixing position on the support contour or bolt contour.
  • a respective guide track or guide slot advantageously includes a release contour, for example release support surface, on which the link follower can support in the angular adjustment.
  • a respective guide link or Füh approximate track preferably has an adjustment slope, in particular opposite adjustment slopes, on which the link follower slides along when adjusting between the angle adjustment and the angle fixing position.
  • the drive angle fixing body is mounted so as to be linearly displaceable with respect to the drive part, for example parallel to the axis of rotation of the drive element and / or parallel to the angular positioning axis.
  • FIG. 1 a perspective oblique view of a system consisting of a hand machine tool and an attachment
  • FIG. 1 shows the system according to Figure 1, wherein the attachment on the
  • Hand machine tool is mounted and has a first angular position with respect to an angular positioning axis
  • Figure 3 shows the system according to Figure 2, wherein the attachment has a second
  • FIG. 4 shows a section through the attachment according to FIG. 2 along a section line AA in FIG. 2 in an angular fixing position of its angular fixing device
  • FIG. 5 shows a rear section of the attachment according to FIG. 4, the angle fixing device being in its angular adjustment position
  • FIG. 6 shows an exploded view in an oblique perspective of the attachment according to the preceding figures
  • FIG. 7 shows an anti-rotation body and a housing body of the attachment device according to the preceding figures in an oblique perspective
  • FIG. 8 shows the anti-rotation body according to FIG. 7 in a lateral view
  • FIG. 9 is a perspective oblique view of a system consisting of a Fland machine tool and a further attachment
  • FIG. 10 shows the system according to FIG. 9, with the attachment on the
  • Fland machine tool is mounted and has a first angular position with respect to an angular positioning axis
  • Figure 1 1 the system according to Figure 10, wherein the attachment is a second
  • FIG. 12 shows a section through the attachment according to FIG. 10, approximately along a section line B-B in FIG. 10 in an angular fixing position of its angular fixing device
  • FIG. 13 shows a rear partial section of the attachment according to FIG. 12, the angle fixing device being in its angle adjustment position
  • FIG. 14 shows an exploded view in a perspective oblique view of the attachment according to FIGS. 9-13,
  • FIG. 15 shows a perspective oblique view of a system consisting of a Fland machine tool and a further attachment
  • FIG. 16 the system according to FIG. 15, the attachment on the
  • Fland machine tool is mounted and has a first angular position with respect to an angular positioning axis
  • FIG. 17 shows the system according to FIG. 16, the front attachment being a second
  • FIG. 18 a section through the attachment according to FIG. 16, approximately along a section line C-C in FIG. 16 in an angular fixing position of its angular fixing device,
  • FIG. 19 shows a rear partial section of the attachment according to FIG. 18, the angle fixing device being in its angular adjustment position
  • FIG. 20 an exploded view in a perspective oblique view according to FIG
  • FIG. 21 shows a perspective oblique view of the angle fixing body of the angle fixing device of the attachment according to FIGS. 15 to 20,
  • FIG. 22 shows a perspective oblique view of the arrangement according to FIG. 21, but from an opposite side
  • FIG. 23 is a perspective oblique view of an angle fixing body of
  • a hand machine tool 200 for use with attachments 10, 110, 310 comprises a machine housing 201 with a drive section 202 in which a drive motor 210 is arranged.
  • a handle section 203 protrudes from the drive section 202, on which, for example, a switch 212 is arranged for actuation by an operator in order to switch the drive motor 210 on or off or to influence its speed.
  • An energy store 211 for example a battery pack, with which the drive motor 210 and possibly controlling and / or monitoring components of the hand machine tool 200 can be supplied with electrical energy, is also arranged on the handle section 203.
  • a power cord or similar other supply device can also be provided for supplying the hand-held machine tool 200.
  • the drive motor 210 drives a tool holder 220 for receiving a work tool, for example a screwdriver bit, drill or the like, directly or via a gear 214.
  • the tool holder 220 can be driven to rotate about a machine axis of rotation D by the drive motor 210.
  • a direction of rotation of the drive motor 210 can be specified and changed using a direction of rotation switch 213.
  • the tool holder 220 is provided at the front, free end region of a Maschi nenabtriebselement 221 which protrudes in front of a neck portion of the drive portion 202 of the machine housing 201.
  • the machine output element 221 has a retaining recess 222 on its radial outer circumference, which is suitable, for example, as a locking receptacle for a locking element of an attachment. In the present case, however, for fastening the attachments 10, 110, 310 explained below, the
  • Hand machine tool 200 is provided with a support body 230 which is plate-like for example se.
  • the machine output element 221 projects in front of the support body 230.
  • the support body 230 has on its end face 231 a support surface 232 for supporting an attachment.
  • Counter-rotation lock contours 233 are advantageously provided on the support surface 232, for example depressions or form-fit receptacles 234, which are used for engaging rotation lock contours of an attachment to support the attachment in a rotationally secure manner.
  • the form-fit receptacles 234 extend in a star shape around the machine axis of rotation D. It is preferred if the form-fit receptacles 234 have the same angular distances from one another.
  • counter-locking contours 235 for example bayonet contours 236, protrude radially outward.
  • An annular recess 237 extends around the support body 230 so that when an attachment device is plugged in or mounted, its locking contours between the Ge
  • gen-locking contours 235 can be inserted into the recess 237 and can be brought into flinter grip with the counter-locking contours 235, that is to say the bayonet contours 236, by rotating about the machine axis of rotation D.
  • the front attachments 10, 110, 310 have on their drive sides 12 drive elements 11 whose rotary driving contours 13 are in engagement with the rotary driving contour 223 of the Fland machine tools 200 or can be brought when the front attachments 10, 110, 310 on the Fland Machine tool 200 are attached or are attached to the Fland machine tool 200.
  • the rotary drive contour 13 of the drive element 11 is, for example, polygonal, in particular hexagonal.
  • the drive elements 11 are rotatably coupled to output elements 21 via gears 60.
  • An axis of rotation D1 of the drive element 11 is at an angle to an axis of rotation D2 of the output element 21, for example at right angles.
  • the Ge gearboxes 60 do or cause no speed change or torque change in the present case, but are only angular gear.
  • bevel gears 61 are provided which mesh with bevel gears 62 of the transmission 60.
  • An embodiment is not shown in which, for example, the axes of rotation D1 and D2 are parallel to one another, but not coaxial. Such an attachment would be a so-called eccentric attachment, for example.
  • the drive elements 11 are on drive parts 14 of the front attachments 10, 110, 310, the output elements 21 on driven parts 15 of the front attachments 10, 110,
  • a tool holder 20 for holding and receiving a work tool 9, for example a screwdriver bit, a drill or a holder for a drill is arranged on the respective drive element 21.
  • the tool holder 20 comprises a rotary driving contour 23 on its inner circumference, for example a tooth contour, into which a screwdriver bit or the like can be inserted, for example.
  • a holding recess 22 is arranged on the radial outer circumference of the output element 20, with which, for example, a drill head or the like of other tool holders can be fixed or locked on the attachment 10, 110, 310.
  • the holding recess 23 corresponds, for example, to one
  • the rotary driving contour 13 is arranged on a free end region of the drive element 11, in particular on a free end region of a shaft section 17 of the drive element 11.
  • the shaft section 17 is rotatably supported by means of bearings 18, 118, 318 and 19 on an attachment housing 50, 150, 350 or with respect to an attachment housing 50, 150, 350 of the attachment 10, 110, 310.
  • the bearings 18, 118, 318 and 19 are located on a section 51 of the attachment housing 50, 150, 350, to which a section 52 of the attachment housing 50, 150, 350, on which the output element 21 is rotatably mounted, is angled. At the output element 21 is rotatably mounted in the section 52 by means of bearings 28, 29.
  • the output element 21 is rotatably mounted directly on the attachment housing 50, 150, 350 by means of the bearing 29. At one end area the output element 21 has the tool holder 20, at another opposite one
  • the bevel gear 62 and an opening of a receptacle 25 are provided, in which a support shaft 26 is received.
  • the support shaft 26 runs coaxially to the shaft section 24 of the output element 21, that is to say coaxially to the axis of rotation D2.
  • the support shaft 26 is supported at one end on the driven element 21 and at the other end on the bearing 28, which is received in a bearing receptacle 53 of the attachment housing 50, 150, 350.
  • the bearing 28 is for example a plain bearing, while the bearing 29 is a ball bearing.
  • the bearing 29 is held in a bearing seat 54 of the attachment housing 50, 150, 350.
  • the bearing 29 is located close to the end face or output side 16 of the front housing 50, 150, 350.
  • a cover 59 for closing the hous ses 50, 150, 350, preferably also for holding the bearing 29, is provided on the output side 16.
  • the bearing 19 of the attachment 10 is supported on a bearing receptacle 55 directly on the attachment housing 50.
  • the bearing 18, however, is held on a Stützein set 57, which is chemotherapynom men in a receptacle 56 of the attachment housing 50.
  • the bearing receptacle 55 and the receptacle 56 are not only coaxial, but also have the same diameter.
  • the support insert preferably supports or holds the support insert 57 in the bearing 19 in the bearing receptacle 55.
  • a support insert 157 is received in a receptacle 56 of the attachment housing 150 on which a bearing receptacle 155 for the bearing 19 is provided.
  • the support insert 157 therefore extends to the bearing 19 and directly to the bevel gear 61.
  • a bearing receptacle 156 is also provided for rotatably mounting a drive angle fixing body 171 about an angular positioning axis W or about the axis of rotation D1.
  • a bearing receptacle 118 is also provided for un indirect mounting of the shaft section 17 of the drive element 21, d. H.
  • the shaft section 17 is rotatably mounted on the bearing receptacle 118, for example in the manner of a plain bearing. Without further ado, a ball bearing such as the ball bearing 18 would also be possible there, in order to mount the shaft section 17 so as to be rotatable with respect to the auxiliary housing 50.
  • the bearings 19, 318 of the attachment 310 are received and held on bearing receptacles 355 and 356 of the section 51 of the attachment housing 350.
  • Fastening devices 30, 130, 330 are used to fasten the attachments 10, 110, 310 on the hand machine tool 200.
  • the fastening devices 30, 130, 330 include anti-rotation bodies 31, 131, 331 with anti-rotation contours 33 which are in front of a support surface 32.
  • the support surface 32 serves to support on the support surface 232 when the anti-rotation contours 33 with the counter-anti-rotation contours 233 by attaching the attachment 10, 110, 310 to the
  • the anti-rotation contours 34 include, for example, form-fit projections 34 which can come into engagement with form-fit receptacles 234 of the counter-anti-rotation contours 233. Between the form-fit projections 34 there are form-fit recesses into which form-fit projections of the counter-rotation lock contours 233 can engage.
  • the Ver rotation lock contours 33, 233 include, for example, teeth or teeth.
  • the thru axle SA is e.g. coaxial with or parallel to the machine axis of rotation D or the axis of rotation D1. In a plug-in direction along the plug-in axis SA, in which the attachment 10,
  • Hand machine tool 200 acts a locking using a Riegelkör pers 37, 137, 337.
  • the locking body 37, 137, 337 has locking contours 35 for engagement with the counter-locking contours 235.
  • the locking contours 35 include, for example, bayonet contours 36 that supply by a rotary movement of the locking body 37, 137, 337 can be brought into engagement or disengagement with the bayonet contours 236 around the plug-in axis SA.
  • the bayonet contours 36 can pass the bayonet contours 236 into the recess 237 of the
  • Hand machine tool 200 can be inserted and brought into engagement with the counter-bayonet contours 236, in that the locking body 37, 237 is rotated about the plug-in axis SA.
  • the unlocking is done accordingly by rotating the locking body 37, 137, 337 about the plug axis SA in the opposite direction of rotation.
  • the locking body 37, 137, 337 has a sleeve section 38 on which the locking contours 35 or bayonet contours 36 are arranged.
  • rotary drive contours 39 protrude radially outwardly, which engage with rotary drive contours 43 of a
  • Rotary driving body 42 are so that by rotating the rotary driving body 42, the sleeve portion 38 can be rotated about the plug-in axis SA.
  • the rotary driving body 42 is held in a twisted manner on a handle element 46.
  • the handle element 46 is designed as an annular body.
  • rotary driving contours 44 are arranged which are in engagement with the rotary driving contours 48 provided on the inner circumference of the handle element 46.
  • the handle element 46 can also be referred to as an actuating element 46.
  • handle contours 47 for example corrugations or the like, are provided which can be grasped by an operator and are suitable for rotating the handle element 46 and thus the rotary drive body 42.
  • the latch body 37 is supported on the rotary driver body 42 by means of a support body 40 which is sandwiched between a step 43A of the rotary driver body 42 and the latch body 37.
  • the support body 40 has a step 41 on which the locking body 37 is supported with a flange section 39A on which the rotary drive contours 39 are arranged.
  • the support body 40 and the locking body 37 are held by a retaining ring 45, for example a split ring, on the rotary driving body 42, which is supported on the flange portion 39A of the locking body 37 and engages in a receptacle 43B of the rotary driving body 42.
  • the receptacle 43B is arranged on the radially inner circumference of the rotary driving body 42, e.g. in the manner of an annular groove.
  • the rotary driving body 42 and thus the locking body 37 are rotatably mounted on a guide body 73 of an angle fixing device 70 about the plug-in axis SA.
  • the guide body 73 is firmly connected to the output section 15, namely by means of screws 88B, which penetrate the screw receptacles 88A of the guide body 73 and are screwed into screw receptacles 88 of a further guide body 80.
  • the guide body 80 is firmly connected to the attachment housing 50 by means of screws 89 which are screwed into the attachment housing 50.
  • the screws 89 are, for example, screwed into screw receptacles 58 on an end face 58A of the section 51 of the attachment housing 50.
  • the guide body 73 has a flange projection 73A which projects radially outward in front of a sleeve section 73B.
  • the inner circumference of the rotary drive body 42 which in this respect also forms a bearing body, is rotatably mounted.
  • a bearing washer 49 is arranged between the end face 73C of the guide body 73 and the support body 40, so that the support body 40 is supported on the guide body 73 so that it can rotate about the plug axis SA.
  • the output section 15 is pivotable with respect to the drive section 14 about an angular positioning axis W, which in the present case is coaxial with the axis of rotation D1 or the plug-in axis SA, so that the axis of rotation D2 can be pivoted about the axis of rotation D1 or the angular positioning axis W, so to speak.
  • the output part 15 can be fixed with respect to the drive part 14 using the angular fixing device 70.
  • the angle fixing device 70 comprises drive angle fixing bodies 71 assigned to the drive section 14, for example balls which are guided on the guide body 73 in guides 74.
  • the balls or drive angle fixing bodies 71 can be moved radially in the guides 74 along an adjustment path VB1 with respect to the axis of rotation D or the plug-in axis SA, so that they protrude once radially inward into a passage opening 75 of the guide body 73 in order to enter a fixing receptacle 76 of the output angular fixing body 72 and to fix it in a fixed position with respect to a linear adjustment along the angular positioning axis W, which corresponds to an angular fixing position V, see FIG. 4.
  • the output angled fixing body 72 is formed by the anti-rotation body 31.
  • the anti-rotation body 31 has on its front side the anti-rotation contours 33 which, in the angular fixing position V, are in engagement with the counter-anti-rotation contours 133 or can be brought into engagement so that they are out of engagement with the counter-anti-rotation contours 233.
  • the linear adjustment of the anti-rotation body 31 along the angular positioning axis W ensures that the output part 15 can be rotated relative to the drive part 14, in that the anti-rotation contours 33 are out of engagement with the counter-anti-rotation contours 233, or that the output part 15 with respect to the Drive part 14 is fixed against rotation with respect to the angular positioning axis W, namely in that the anti-rotation contours 33 engage with the counter-anti-rotation contours 233 of
  • Hand machine tool 200 are.
  • the anti-rotation body 31 or output angular fixing body 72 is mounted on the guide body 73 and the guide body 80 linearly with respect to the Winkelpo sitionierachse W.
  • Guide receptacles 81 which are located between guide projections 82, are provided on guide body 80.
  • the guide projections 82 engage in guide receptacles 84 on the anti-rotation body 31 or output angle fixing body 72.
  • Guide projections 83 which can also be referred to as anti-rotation projections, are arranged between the guide receptacles 84 and engage in the guide receptacles 81 of the guide body 80.
  • the guide projections 83 extend on the radial outer circumference with respect to the angular positioning axis W or the axis of rotation D1 of the anti-rotation body 31 or angled output fixing body 72.
  • the screw receptacles 88 for the screws 88B are provided, with which the guide body 73 is firmly connected to the guide body 80.
  • the two guide bodies 80, 73 guide the output angle fixing body 72 or anti-rotation body 31 linearly with respect to the angular positioning axis W.
  • a motorized actuator 71 A for example an electromagnet or the like
  • actuating device 90 comprises an actuating element 91, for example a ring, which has an actuating contour 92, in particular an inclined surface, with which the balls or output angled fixing elements 72 are inserted into the guides 74 into and thus into engagement with the fixing receptacle 76 of the output angular fixing body 72, so that it is fixed in place with respect to the angular positioning axis W.
  • the fixing receptacle 76 is designed, for example, as an annular groove on the outer circumference of the output angular fixing body 72, which is generally sleeve-shaped. At this point it should be mentioned that the output angled fixing body 72 has a passage opening for the drive element 11, i. is penetrated by the drive element.
  • a flange grip element 93 is used, for example an annular body which is firmly connected to the actuating element 91 or is in one piece.
  • handle contours 94 for example actuating tabs, corrugations or the like are arranged, which are easily accessible on the radi alen outer periphery of the attachment 11 for an operator.
  • the guide body 80 has recesses 85 into which the handle contours 94 can engage.
  • the recesses 85 form, for example, guide receptacles for guiding the flange grip element 93 parallel to the angular positioning axis W, that is to say that the actuating element 91 is adjusted parallel to the angular positioning axis W by linear adjustment of the flange grip element 93 in order to adjust the actuating contour 92 parallel to the angular positioning axis W.
  • the actuating element 91 is loaded by means of a spring arrangement 97 in a position corresponding to the Win kelfixier ein V.
  • the spring arrangement 97 comprises, for example, a helical spring 98, which is received in a spring receptacle 86B of the guide body 80 and is supported on the one hand on the spring receptacle 86, for example on a base area, by means of the screws 89
  • Attachment of the guide body 80 to the attachment housing 50 are provided.
  • the spring 98 is supported on a step 95 of the Fland handle element 93 in order to load it in the direction of the angular fixing position V.
  • the flange grip element 93 can be moved in a direction away from the support surface 32, that is to say towards the attachment housing 50, until it strikes a stop 87 of the guide body 80.
  • the stop 87 is located, for example, on the bottom area of the recess 85.
  • the flange grip element 93 has a plurality of handle contours 94 at angular intervals with respect to the angular positioning axis W, for example two handle contours 94 provided on opposite sides of the flange grip element 93.
  • active actuation is preferably provided, namely using the actuation device 90.
  • the sequence is now as follows:
  • the actuating contour 92 is actuated in the direction of the angular adjustment E of the angular fixing device 70, that is to say the balls or output angular fixing bodies 72 can enter the guides 74.
  • a driver body 79 provided on the radial periphery of the actuating element 91, for example an annular body or some other entrainment contour of the actuating element 91, strikes the anti-rotation body 31 or output angular fixing body 72 in the direction of the angular adjustment position E.
  • the Mit Spotifyvor jump 78 is designed, for example, as a flange projection and protrudes in particular in front of the guide projections 83 radially outward.
  • the angle fixing device 70 comprises drive angle fixing bodies 71 assigned to the drive section 14, for example balls which are guided on the guide body 37 in guides 74.
  • the guides 74 run radially with respect to the axis of rotation D and extend from the passage opening 75 of the guide body 73 to its radial outer circumference.
  • the balls or drive angle fixing body 71 can be moved radially in the guides 74 with respect to the axis of rotation D or the plug-in axis SA, so that they protrude radially inward once into a passage opening 75 of the guide body 73 in order to enter a fixing receptacle 76 of the output angle fixing body 72 and fix it in a fixed position with respect to a linear adjustment along the angular positioning axis W, which corresponds to an angular fixing position V, see FIG. 4.
  • the output angular fixing body 72 is formed by the anti-rotation body 31 ge.
  • the anti-rotation body 31 has on its front side the anti-rotation contours 33 which, in the angular fixing position V, are in engagement with the counter-anti-rotation contours 133 or can be brought into engagement so that they are out of engagement with the counter-anti-rotation contours 233.
  • the linear adjustment of the anti-rotation body 31 along the angular positioning axis W ensures that the output part 15 can be rotated relative to the drive part 14, in that the anti-rotation contours 33 are out of engagement with the counter-anti-rotation contours 233 in a rotation-enabled position DF, or that the output section 15 is fixed against rotation with respect to the angular positioning axis W with respect to the drive section 14, in that the anti-rotation contours 33 are in engagement with the counter-anti-rotation contours 233 of the hand-held machine tool 200 in an anti-rotation position DS.
  • the anti-rotation body 31 or output angular fixing body 72 is mounted on the guide body 73 and the guide body 80 linearly with respect to the Winkelpo sitionierachse W.
  • On the guide body 80 Füh approximately receptacles 81 are provided, which can be found between guide projections 82 be.
  • the guide projections 82 engage in guide receptacles 84 on the anti-rotation body 31 or output angle fixing body 72.
  • Guide projections 83 which can also be referred to as anti-rotation projections, are arranged between the guide receptacles 84 and engage in the guide receptacles 81 of the guide body 80.
  • the guide projections 83 extend on the radial outer circumference with respect to the angular positioning axis W or the axis of rotation D1 of the anti-rotation body 31 or angled output fixing body 72.
  • the screw receptacles 88 are provided for the screws 88B, namely with which the Guide body 73 is firmly connected to the guide body 80.
  • the two guide bodies 80, 73 guide the output angled fixing body 72 or anti-rotation body 31 linearly with respect to the angular positioning axis W.
  • a motorized actuator for example an electromagnet or the like, is provided to actuate the angular fixing body 71 is.
  • a manual operating concept is given, namely on the basis of an actuating device 90.
  • the actuating device 90 comprises an actuating element 91, for example a ring, which has an actuating contour 92 with which the balls or output angled fixing bodies 72 enter the guides 74 and thus can be adjusted in engagement with the fixing receptacle 76 of the output angular fixing body 72 so that it is fixed in place with respect to the angular positioning axis W.
  • the fixing receptacle 76 is designed, for example, as an annular groove on the outer circumference of the output angular fixing body 72, which is sleeve-shaped overall.
  • the actuation contour 92 is or comprises, for example, an inclined surface. The actuation contour 92 runs obliquely to the angular positioning axis W.
  • the output angled fixing body 72 has a passage opening for the drive element 11.
  • the output angular fixing body 72 is penetrated by the drive element.
  • a flange grip element 93 is used, for example an annular body which is firmly connected to the actuating element 91 or is in one piece.
  • handle contours 94 for example actuating tabs, corrugations or the like are arranged, which are easily accessible on the radi alen outer periphery of the attachment 11 for an operator.
  • the guide body 80 preferably has recesses 85 into which the handle contours 94 can engage.
  • the recesses 85 form, for example, guide receptacles for guiding the flange grip element 93 parallel to the angular positioning axis W, that is to say that by linear adjustment of the flange grip element 93 the Actuating element 91 is adjusted parallel to the angular positioning axis W in order to adjust the actuating contour 92 parallel to the angular positioning axis W.
  • the actuating element 91 is loaded by means of a spring arrangement 97 in a position corresponding to the Win kelfixier ein V.
  • the spring arrangement 97 comprises, for example, a helical spring 98, which is received in a spring receptacle 86B of the guide body 80 and is supported on the one hand on the spring receptacle 86, for example on a floor area through which screws 89 are provided for fastening the guide body 80 to the attachment housing 50 .
  • the spring 98 is supported on a step 95 of the Fland handle element 93 in order to load it in the direction of the angular fixing position V.
  • the flange grip element 93 can be moved in a direction away from the support surface 32, that is to say towards the attachment housing 50, until it strikes a stop 87 of the guide body 80.
  • the stop 87 is located, for example, on the bottom area of the recess 85. It is preferred if the flange grip element 93 has a plurality of handle contours 94 at angular intervals with respect to the angular positioning axis W, for example two handle contours 94 provided on opposite sides of the flange grip element 93.
  • the actuating contour 92 is actuated in the direction of the angular adjustment E of the angular fixing device 70, ie the balls or ab- Drive angle fixing body 72 can get into the guides 74.
  • a driver body 97 provided on the radial circumference of the actuating element 91, for example an annular body or another driver contour of the actuating element 91, strikes the anti-rotation body 31 or output angled fixing body 72 in the direction of the angular adjustment E, namely in that the driving body 79 strikes a driving projection 78 which projects radially outwardly in front of the anti-rotation body 31.
  • the Mit Spotifyvor jump 78 is designed, for example, as a flange projection and protrudes in particular in front of the guide projections 83 radially outward.
  • the drive angular fixing body 71 or balls reach the area of release contours 72, for example annular sections on the outer circumference of the output angular fixing body 72, so that this and thus the output section 15 in the positioning axis W can be rotated.
  • Hand machine tool 200 is supported and connected with the hand machine tool 200 in a tensile manner with the hand machine tool 200 with respect to the support axis or plug-in axis SA using the locking contours 35, 235 located behind the miteinan.
  • the anti-rotation lock with respect to the angular positioning axis W can be released by loosening the angular fixing device 70 or ver the same from the angular fixing position V to the angular adjustment E, without the fastening device 30 having to be transferred from its fixing position or fixing position to a release position at the same time.
  • the output section 15 can be adjusted or rotated with respect to the drive section 15 about the Winkelpositio nierachse W without the device 30 would have to be solved.
  • a fastening device 130, 330 is provided for fastening to the hand machine tool 200, which is functionally the same as the fastening device 30.
  • a locking body 137, 237 of the fastening device 130, 330 has a sleeve section 38, on the inner circumference of which locking contours 35, namely bayonet contours 36, are provided for engagement with the counter-locking contours 235 or bayonet contours 236.
  • the fastening device 30 comprises a support body 131, which has a support surface 32 for support on the support surface 232 of the hand-held power tool 200 and anti-rotation contours 33, for example form-fit projections 34 with form-fit receptacles between the respective form-fit projections 34.
  • the anti-rotation contours 33 serve to engage in the counter-anti-rotation contours 233 of the hand-held machine tool 200, in which they engage in an anti-rotation position DS.
  • the attachment 110 is a die by a plugging movement along a plug axis SA
  • Hand machine tool 200 can be plugged in, with the support surfaces 32, 232 then bracing against each other and the anti-rotation contours 33, 233 represent an anti-rotation lock against rotation about the plug-in axis SA, so that by rotating the locking body 137 about the plug-in axis SA a tensile fastening of the Attachment 110 with respect to the thru axle SA on the
  • Hand machine tool 200 is realized by namely the locking cones 35, 235 get behind each other.
  • the locking body 137, 337 is connected to a handle element 146, 346 provided for actuating the fastening device 130, 330 and rotatably mounted on the attachment housing 150, 350.
  • the handle element 146, 346 has, for example, a handle contour 147, 347 on its outer circumference, which is gripped by an operator and provided for actuation, namely for rotating the handle element 146, 346 and thus the bolt body 137, 337 about the plug axis SA.
  • the attachment 110, 310 can be mounted on the hand machine tool 200 in different angular positions with respect to the plug-in axis SA, which at the same time represents an angular positioning axis W.
  • the teeth or anti-rotation contours 33 engage in different angular positions in the counter-anti-rotation contours 233 and the fastening device 130, 330 is then fixed or locked or released or unlocked accordingly.
  • the attachment 110 even if the anti-rotation contours 33, 233 remain in engagement with one another, i.e. the attachment 110 remains in the locking position locked on the hand machine tool 200 or in the fastening position attached to the hand machine tool 200, an angular adjustment about the angular positioning axis W is possible with the attachment 110, i. the output section 15, in particular the Vorsatzge housing 150, can be rotated about the angular positioning axis W with respect to the drive section 14.
  • the handle element 146 has a step 143A on which a support body 140 is supported, which in turn supports the ring body or locking body 137. Screws 145 are inserted through screw receptacles 139 of the locking body 137 and screw receptacles 142 of the support body 140 and in
  • Screw receptacles 143 of the handle element 146 are screwed in.
  • the screw receptacles 139 of the locking body 137 are provided on a flange portion of the Rie gel stressess 137 which is supported on an end face or support surface of the support body 140, which in turn is supported on the step 143A.
  • the angle fixing device 170 comprises the drive angle fixing body 171, which is non-rotatably and displaceably connected to the rotational locking body 131 with respect to the angular positioning axis, as well as output angle fixing element 172, for example balls, which are mounted on the output part 15 radially with respect to the Winkelpo sitionierachse W and thus along with respect to the angular positioning axis W radial adjustment paths VB2 are adjustable.
  • the output section is locked or fixed in a rotationally fixed manner with respect to the drive section 14 with respect to the angular positioning axis W, ie the angular fixing device 170 assumes its angular fixing position V.
  • the Winkelver adjustment position E is assumed and the output portion 15 can be pivoted about the angular positioning axis W relative to the drive portion 14.
  • the output angled fixing bodies 172 are movably mounted in guides 74, which run radially to the angular positioning axis W, of a guide body 173 between the angular fixing position V and the angular adjustment E.
  • the output angled fixing bodies 172 emerge from the guides 74 and protrude into a through-opening 174, where they penetrate into Winkelelfixierauf took 176 of the drive angular fixing body 171 and fix it in a rotationally fixed manner with respect to the guide body 73, in particular lock it.
  • the guide body 173 is firmly connected to the attachment housing 150.
  • the guide body 173 is formed by the support body 157 or is firmly connected to it.
  • the support insert 157 or guide body 173 is inserted into section 51 of the attachment housing 50, with anti-rotation contours 58B on the inner circumference of the plug-in receptacle of the attachment housing 150 engaging with anti-rotation contours 158 on the radial outer circumference of the support insert 157 and this rotation-proof with respect to the angular positioning axis W arn Hold attachment housing 150.
  • a flange section 158B protrudes radially outward in front of the anti-rotation contours 158, on which through-openings 158C are provided for screws 89, which penetrate through the through-openings 158C and are screwed into screw receptacles 58 on an end face 58A of the attachment housing 150.
  • the flange section or flange projection 158B of the support insert 157 or of the guide body 173 is supported on the end face 48A.
  • the drive angular fixing body 171 is connected to the anti-rotation body 131 in a rotationally fixed manner with respect to the angular positioning axis W and is non-displaceably parallel to the angular positioning axis W.
  • anti-rotation contours 177 are arranged, which engage with complementary anti-rotation contours 178 on the inner circumference of a receptacle of the anti-rotation body 131 into which the drive angle fixing body 171 is inserted.
  • a retaining ring 179 for example a split ring or the like, as well as supporting step contours on the anti-rotation body 131 and the drive angle fixing body 171, which are supported on one another and run transversely to the angular positioning axis W, also act in the sense of a support and securing of the drive angle fixing body 171 in a way that is secure against displacement with regard to the anti-rotation body 131.
  • the anti-rotation body 131 and the drive angle fixing body 171 it would also be possible for the anti-rotation body 131 and the drive angle fixing body 171 to be in one piece.
  • the output angled fixing bodies 172 can be actuated using an actuation device 190.
  • the actuation device 190 comprises an actuation body 191, for example an annular body, which has an actuation contour 92.
  • Be the actuating contour 92 is an inclined surface which runs obliquely to the angular positioning axis W and forms part of an inclined surface gear or transmission gear with which the output angular fixing body 172 from its angular adjustment position E into angular fixing position V can be actuated.
  • the actuating contour 92 releases the output angular fixing body 172 for adjustment radially outward with respect to the angular positioning axis W so that they can disengage from the angular fixing receptacles 176.
  • the actuating element 91 is loaded by a spring arrangement 197.
  • the spring arrangement 197 has a spring 198, for example a helical spring, which is supported on the anti-rotation body 131 on the one hand and on the actuating element 191 on the other hand.
  • a sleeve portion 132 of the anti-rotation body 131 penetrates the interior of the spring 198, which is supported on the flange portion 139 of the anti-rotation body 131 United.
  • the handle element 193 has, for example, handle contours 194, in particular tabs or the like, other vorste existing contours, which can be gripped by an operator to move the handle element 193 and thus the actuating element 191 parallel to the Winkelpositio nierachse W.
  • the actuating element 346 and the locking body 337 are firmly connected to one another, for example held together in a form-fitting manner.
  • a radial and / or annular projection of the locking body 337 engages in an annular or radially inner open receptacle 346A of the actuating element 346.
  • a bearing receptacle 338 is provided, into which an annular bearing body 340, which can also be referred to as Stützkör by or bearing ring, engages.
  • the bearing seat 338 is closed by an annular body 339 which is connected to the locking body 337, e.g. is also included in receptacle 346A.
  • the ring body 339 and the locking body 337 accommodate the bearing body 340 in a sandwich-like manner.
  • the bearing body 340 for example a ring, is connected to the housing 350 by means of screws 345.
  • screws 345 are in
  • Screw receptacles 358 are screwed to an end face 358A of a guide body 373.
  • the guide body 373 is preferably formed by the housing 350 or is fixedly arranged on the same.
  • the locking body 337 is rotatably mounted on the attachment housing 350 about the axis of rotation D1 or angular positioning axis W or plug-in axis SA, so that the fastening device 30 can be locked or unlocked about this axis of rotation on the hand machine tool 20 by rotating it. If an angular fixing device 370 assumes its angular fixing position V, then gen the anti-rotation contours 33 of the attachment 310 in positive, non-rotatable engagement with the anti-rotation contours 32 of the
  • Hand machine tool 200 so that the attachment 310 is held on the hand machine tool 200 so that it cannot rotate about the angular positioning axis W or axis of rotation D1.
  • the housing 350 is preferably in two parts and comprises housing parts 350A, 350B which are joined to one another in the manner of half-shells. For example, screws 350C are pushed through corresponding screw receptacles on housing part 350B and screwed into screw domes or screw receptacles on housing part 350A.
  • the housing 350 houses the movable components of the attachment 310, for example the gear 60, the angle fixing device 370 and the like.
  • the angular fixing device 370 has a drive angular fixing body 371 which, on its side facing the drive side 12, has the anti-rotation contours 33, thus therefore the form-locking projections 34, so that it can with respect to the
  • Angular positioning axis W can be supported on hand machine tool 200 so that it cannot rotate.
  • the drive angle fixing body 371 also forms the torsion locking body 331.
  • An output angled fixing body 372 is assigned to the output section 15 and is mounted on the output section 15 so as to be rotatable about the angular positioning axis W or the axis of rotation D1.
  • the anti-rotation contours 33 engage in the angular fixing position E, which at the same time represents an anti-rotation position DS, in the counter-anti-rotation contours 233 of the hand machine tool 200 and are in the angular adjustment E, which also represents the rotation release position DF, out of engagement with the Counter-rotation lock contours 233.
  • the guide body 373 is on the portion 51 of the attachment housing 50 is arranged.
  • the guide body 373 penetrates an actuating element 391 of an actuating device 390 and protrudes with its end face 358A in front of the same, so that it provides a bearing section there for the rotatable mounting of the handle element 346, in particular for holding the bearing ring or bearing body 340 which is attached to the guide body 373 and on which the handle element 346 is rotatably mounted.
  • the guide body 373 preferably forms or comprises a linear bearing 373A for the drive angle fixing body 371, which is mounted on the linear bearing 373A so as to be displaceable with respect to an adjusting axis L.
  • the anti-rotation contours 33 can be brought into engagement or disengaged from the counter anti-rotation contours 233, that is, the angle-locking position V or the angle adjustment position E can be set.
  • the drive angle fixing body 371 or the one-piece or firmly ver related anti-rotation body 331 are loaded into the angular fixing position V by a spring arrangement 331 A.
  • the spring arrangement 331A comprises, for example, springs 331B, in particular helical springs, which are supported on the output section 15.
  • the attachment housing 350 in particular its section 51, spring receptacles 331 C, in particular in the form of pockets, in which the springs 331 B are received.
  • the springs 331 B support the drive angle fixing body 371 on support contours 376.
  • the support contours 376 are configured, for example, in the manner of projections protruding radially outward with respect to the angular positioning axis W. These projections protrude, for example, from a sleeve body 373B of the drive angle fixing body 371.
  • Anti-rotation contours 373 for example, are provided on one end face of sleeve body 373B.
  • the sleeve body 373B has a passage opening into which the drive element 11 engages.
  • the radial projections 377 at the same time form guide projections which engage in guide receptacles 387 of the guide body 373 and are linearly related there. borrowed the axis L or angle positioning axis W are guided.
  • the support contours 376 or radial projections 377 thus simultaneously form anti-rotation contours which hold the drive angle fixing body 371 in a rotationally fixed manner with respect to the attachment housing 50 and / or the output part 15. Nevertheless, the angle fixing body 371 is mounted on the guide body 373 so as to be displaceable with respect to the linear axis L.
  • the spring arrangement 373A now loads the anti-rotation body 331 or angular fixing body 371 in the direction of the angular fixing position V, in which the anti-rotation contours 33 are in engagement with the counter-anti-rotation contours 233 or come into engagement.
  • Actuating device 390 is used, so to speak, to release the angular fixing position V, ie to adjust the angular fixing device 370 in the direction of angular adjustment E.
  • Its actuating element 391 comprises an actuating ring 393, on whose radial outer circumference a grip contour 394 is arranged.
  • the actuating ring 393 is rotatably mounted about the angular positioning axis W or the longitudinal axis L with respect to the drive part 14 and the output part 15 of the attachment 310, for example rotatably mounted on the outer circumference of the guide body 373, around the drive angular fixing body 372 with respect to the linear axis L. adjust.
  • the actuating element 391 that is to say the actuating ring 393, is integrally or firmly connected to the output angle fixing body 372.
  • the output fixing body 372 is implemented as a component firmly connected to the actuating element 91, or both components are in one piece.
  • the output angled fixing body 372 is rotatable about the angular positioning axis W, thus adjustable or rotatable with respect to the drive angled fixing body 371 about an arcuate, in particular ring-shaped or circular, adjustment path VB3.
  • the actuating element 391 acts via a transmission gear 400, for example a power steering and / or power amplifying gear, on angular fixing body 371.
  • the transmission gear 400 is a bevel gear or has a Inclined surface gear, which acts on the support contours 376, in particular the radial projections 371, of the drive fixing body 371.
  • support surfaces 401 are provided, which support the support contours 376 in the angular fixing position V, that is to say keep the rotation locking contours 33 in engagement with the counter-rotation locking contours 233.
  • fixation adjustment slopes 402 which are in clearance
  • the release support surfaces 403 pass.
  • the release support surfaces 403 are assigned to the angle adjustment position E. If the actuating ring 393 and thus the output angular fixing body 372 is rotated about the angular positioning axis W in a direction of rotation DR or DL, the projections 372 or support cones 376 get from the support surfaces 401 via the bevels 402 to the support surfaces 403 and vice versa , wherein the angular fixing body 371 between the angular fixing position V and the angular adjustment position E is adjusted.
  • the transmission gear 400 acts in the sense of a fixing gear.
  • the actuating element 391 is also designed to adjust the actuating device 390 from the angular fixing position V in the direction of the angular adjustment position E.
  • the transmission gear 400 thus also forms a release gear.
  • the projections 377 of the angular fixing body 371 are namely supported on the release adjustment bevels 404 opposite the fixing adjustment bevels and the release support surfaces 405 opposite the release support surfaces 403. Between tween the respective aforementioned surfaces, guide channels 407 are defined, which are open to insertion openings 406 and are delimited at the end by rotary drive stops 410, so preferably represent dead ends.
  • the projections 377 can be introduced or introduced into the guide channels 407 through the introduction openings 406.
  • a spring arrangement 397 loads the actuating element 391 in the direction of the angular fixing position V.
  • the spring arrangement 397 comprises, for example, a torsion spring 398 which, with a supporting end 398A on the attachment housing 50, for example wise the section 51, and with a support section 398B on the actuator 391 is supported.
  • the actuating element 391 can be adjusted from a rotary position assigned to the angular fixing position V into a rotary position assigned to the angular adjustment position E, the actuating element 391 with the angular fixing body 372 moving the angular fixing body 371 from the angular fixing position V in the direction of the angular adjusting position E. actuated.
  • the projections 377 strike against the rotary drive stops 410.
  • the projections 377 hit the rotary drive contours 410R or 41 OL, which are arranged on opposite sides of the rotary drive stops 410, so that they take the angle fixing body 371 with them in the direction of rotation DR or DL .
  • a subsequent angular fixation of the output part 15 with respect to the drive part 14 and thus with respect to the hand-held machine tool 10 is particularly easy in that the operator lets go of the actuating element 91 so that it is loaded into its position assigned to the angular fixing position V by the spring arrangement 397, that is acts in the sense of an angle fixation. If now the Ver anti-rotation contours 33, 233 are in a mutually matching rotational position be with respect to the angular positioning axis W, the spring arrangements 331 A act and 397 in the sense of a latching and rotationally fixed locking of the output section 15 with respect to the drive section 14. The output section 15, so to speak, engages in the desired rotational position.
  • an eccentric attachment is shown schematically, the output element 321 of which is rotatably mounted about an axis of rotation D2E.
  • the axes of rotation D1 and D2 are, for example, parallel to one another, but have an offset to one another transversely to their longitudinal direction.
  • the axis of rotation D2E is rotatable, for example, about the angular positioning axis W with respect to the axis of rotation D1, but always runs parallel to the same.
  • the drive angular fixing body 71, 171, 371 are connected to the anti-rotation bodies 31, 131, 331 or are integral with the same.
EP20726018.3A 2019-05-10 2020-05-08 Vorsatzgerät und hand-werkzeugmaschine mit vorsatzgerät Pending EP3965996A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019112260 2019-05-10
DE102019113212.6A DE102019113212A1 (de) 2019-05-10 2019-05-20 Vorsatzgerät und Hand-Werkzeugmaschine mit Vorsatzgerät
PCT/EP2020/062927 WO2020229363A1 (de) 2019-05-10 2020-05-08 Vorsatzgerät und hand-werkzeugmaschine mit vorsatzgerät

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EP3965996A1 true EP3965996A1 (de) 2022-03-16

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US (1) US20220193875A1 (ja)
EP (1) EP3965996A1 (ja)
JP (1) JP7467501B2 (ja)
CN (1) CN113905851A (ja)
DE (1) DE102019113212A1 (ja)
WO (1) WO2020229363A1 (ja)

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CN112659063A (zh) * 2020-12-23 2021-04-16 金华大吕科技有限公司 具有安全机构的可换头电动工具
USD1023710S1 (en) 2021-03-19 2024-04-23 Black & Decker Inc. Power tool
SE545361C2 (en) * 2021-08-23 2023-07-18 Atlas Copco Ind Technique Ab Arrangement for power tool, front part attachment and power tool

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JP4227028B2 (ja) * 2004-01-09 2009-02-18 株式会社マキタ ドライバドリル
DE102010018919A1 (de) 2010-04-30 2011-11-03 Festool Gmbh Vorsatzgerät für eine Hand-Werkzeugmaschine und damit ausgestattete Hand-Werkzeugmaschine
US20130008677A1 (en) * 2011-07-08 2013-01-10 Chen Huifu Multi-head power tool
DE102014207713A1 (de) * 2014-04-24 2015-10-29 Robert Bosch Gmbh Werkzeugvorsatz für eine Handwerkzeugmaschine
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US20220193875A1 (en) 2022-06-23
DE102019113212A1 (de) 2020-11-12
CN113905851A (zh) 2022-01-07
JP2022532701A (ja) 2022-07-19
JP7467501B2 (ja) 2024-04-15
WO2020229363A1 (de) 2020-11-19

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