WO2009056433A1 - Machine-outil manuelle et poignée - Google Patents

Machine-outil manuelle et poignée Download PDF

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Publication number
WO2009056433A1
WO2009056433A1 PCT/EP2008/063648 EP2008063648W WO2009056433A1 WO 2009056433 A1 WO2009056433 A1 WO 2009056433A1 EP 2008063648 W EP2008063648 W EP 2008063648W WO 2009056433 A1 WO2009056433 A1 WO 2009056433A1
Authority
WO
WIPO (PCT)
Prior art keywords
extension
handle
hand tool
tool according
adjustable
Prior art date
Application number
PCT/EP2008/063648
Other languages
German (de)
English (en)
Inventor
Cornelius Boeck
Joachim Schadow
Juergen Wiker
Sinisa Andrasic
Original Assignee
Robert Bosch 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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to EP13159853.4A priority Critical patent/EP2647473B1/fr
Priority to EP08805233.7A priority patent/EP2217409B1/fr
Publication of WO2009056433A1 publication Critical patent/WO2009056433A1/fr

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
    • 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
    • B25F5/025—Construction of casings, bodies or handles with torque reaction bars for rotary tools
    • B25F5/026—Construction of casings, bodies or handles with torque reaction bars for rotary tools in the form of an auxiliary handle

Definitions

  • the invention relates to a hand tool, in particular an electric hand tool, according to the preamble of claim 1 and a handle for a hand tool according to claim 26.
  • the invention is therefore based on the object, a hand-tool, comprising proposing a fixable on this with the aid of fasteners handle, the fasteners should be designed such that on the one hand a simple, safe and preferably fast fixation of the handle on the hand tool Machine is possible, and that on the other hand, the fastening means have the least possible interference contour. Furthermore, the object is to propose a correspondingly improved handle for a hand tool.
  • the invention is based on the idea to provide the fastening means in addition to the extension with a relative to the extension adjustable element that cooperates during manufacture or during release and / or securing a positive and / or non-positive connection between the handle and the machine tool, ie is involved. Since ⁇ wherein, by "participation of the element” includes both an embodiment understood, in which the element directly produces the positive and / or frictional connection, as well as an embodiment in which the element has only one adjustment or actuation function and / or secures the fixation against unintentional loosening.
  • a recess Under a recess according to claim 1 is a, not necessarily cylindrical, recess, opening or socket in the power tool or in the housing of the power tool or in a fixed to the power tool, separate from the handle component or handle, preferably frontally in the handle, understood that serves exclusively or, inter alia, to receive the extension and / or the additional element.
  • the recess is designed internal thread-free.
  • extension eg bolt
  • an extension in the sense of claim 1 is a, not necessarily cylindrical, in particular external thread-free, extension (eg bolt) understood, which is in the recess, not necessarily form-fitting, at least partially receivable.
  • extension with the handle and the recess of the manual machine
  • the invention also includes embodiments in which the extension and the recess are arranged reversed, ie the recess in the handle and the extension in the hand tool are arranged.
  • the extension a latching and / or adjusting and / or clamping function.
  • Particularly preferred embodiments are those in which the element that can be adjusted relative to the extension is connected to the extension or a further component of the fastening means cooperates, that with the extension or the component or with the element itself a positive and / or non-positive connection between the handle and the power tool can be produced bar.
  • extension actively relative to the element or the active element relative to the extension or both the element and the extension are each actively adjustable relative to each other.
  • the extension can only be engaged in one or more concrete relative positions, ie. H. (Rotary) orientations on the hand tool, can be specified.
  • H. (Rotary) orientations on the hand tool can be specified.
  • This can be realized, for example, in that the recess and / or the extension are not rotationally symmetrical and can be inserted into one another only in certain relative rotational positions.
  • Such an embodiment in which the extension can be inserted in a defined manner directed into the recess, has the advantage that the handle also not (as in the prior art) must be rotationally symmetrical, but that the shape of the handle due to the position-oriented mounting option of Handle on the power tool, for example, by providing circumferentially extending and axially adjacent troughs, can be adapted to the shape of the user's hand.
  • the additional element is designed as a spring element which is adjustable between a release position and a fixing position, wherein the spring element engages in its fixing position in a recess (undercut) of the extension.
  • the spring element at least approximately U-shaped, wherein in the fixing position both substantially mutually parallel legs of the US engage in a common or in each case a recess of the extension.
  • the legs of the U-shaped spring element cooperate in the fixing position with two mutually parallel recesses in the extension set. To release the connection, the legs need only be spread apart.
  • the extension can be expanded in the radial direction by means of the element.
  • the extension is for this purpose, preferably multiple, slotted in the longitudinal direction.
  • the portions of the extension which are adjustable relative to each other by the at least one longitudinal section are spread open in the radial direction, whereby the extension is clamped in the recess by frictional engagement.
  • the element is designed as an adjustable soul in the axial direction within the extension.
  • the at least one longitudinal slot preferably extends to the free end of the extension.
  • the element is formed as an eccentric bolt, wherein by spreading the eccentric pin a spreading, ie radial expansion of the extension, is realized.
  • a spreading ie radial expansion of the extension.
  • the projection is not continuously slotted to its free end when providing an eccentric bolt, but in which the at least one longitudinal slot ends axially in front of the free end pointing in the direction of the handheld power tool.
  • the element is designed as, preferably self-locking, wedge, which is adjustable in the axial direction relative to the extension, wherein the clamping wedge is preferably spring-loaded in the direction of its fixing position and in the fixing position by clamping (frictional) with the Inner circumference of the recess cooperates.
  • the element is designed as a latching hook, which preferably in
  • the latching hook is arranged within the extension, preferably within a longitudinal slot of the extension. If necessary, these or all other embodiments described in this application can be combined with an anti-twist device for the handle.
  • the handle can be securely fixed by a simple axial pushing movement on the power tool because the latch hook is initially adjusted against the fixing direction when inserted into a recess associated therewith and can automatically pivot into the fixing position upon reaching a certain insertion position.
  • the element is in the extension, radially adjustable ball or as a set of balls, comprising a plurality of balls formed.
  • the balls can be adjusted between a retracted in the radial direction release position or in a radially outward fixing position, wherein the at least one ball is received in the fixing position either in a recess of the recess or a component, preferably the recess in the radial direction engages behind.
  • the adjustment in the radial direction of the formed as at least one ball element is preferably carried out by means of an axially adjustable within the handle cone rod.
  • the element is rotatably mounted relative to the extension and that about an axis parallel to the longitudinal central axis of the extension extending axis (eccentric axis).
  • a further alternative embodiment provides that the actual extension is designed as a latching hook, the with the help of, preferably designed as a cone rod, element which is adjustably mounted in the axial direction, between a release position and a fixing position is adjustable.
  • the required longitudinal, ie axial adjustability of the element by means of a disc to be rotated for example, has an internal thread and cooperates with this with an external thread of the element realized.
  • Particularly preferred is an embodiment with two, preferably adjustable in opposite directions, locking hooks.
  • the element is designed as a radially adjacent to the extension arranged latching hook.
  • the at least one latching hook in the radial direction, preferably outwardly, spring-loaded.
  • an embodiment with two adjustable in opposite directions locking hooks is provided.
  • the fastening means are designed as Baj onettver gleich or include such.
  • a closure is understood, which is by rotation of a closure component, preferably by 90 °, lockable, wherein the twisting movement of a (preferably pure) insertion movement, preferably in handle longitudinal direction, downstream.
  • a closure component preferably by 90 °, lockable, wherein the twisting movement of a (preferably pure) insertion movement, preferably in handle longitudinal direction, downstream.
  • the fastening means are designed as a Baj onett-closure, wherein in the realization of the bayonet closure on the additional, relative to the recess and the extension adjustable, Element is omitted or can be waived.
  • the fastening means in this embodiment consist of the extension and the recess, which together form a Baj onett closure.
  • the attachment means may comprise an additional, adjustable relative to the extension element.
  • an embodiment is preferred in which, in addition to the recess and the extension, an element that is adjustable relative to these components is provided as part of the fastening means.
  • the additional element is designed as a locking element arranged axially adjacent to the extension, which is rotatable between a release position and a fixing position relative to the extension about an axis of rotation which preferably coincides with the longitudinal center axis of the extension , wherein, in the fixing position of the extension is projected in the radial direction of the element and thus locks the handle.
  • the additional element as a unintentional opening of the bayonet lock preventing element, that is, as a fuse element is formed.
  • the additional element as a unintentional opening of the bayonet lock preventing element, that is, as a fuse element is formed.
  • the bayonet closure in which a (radially) thickened portion of the extension during rotation of the handle relative to the housing of the power tool slides along a curved slope of a component, wherein the slope is a movement of the entire hangriffes in the direction of the power tool caused.
  • the component provided with the slope is engaged behind by a projection section in the fixing position.
  • the component may be formed, for example, as held in the housing of the power tool metal or as part of the housing, d. H. be formed by the housing.
  • the adjustable relative to the extension element is designed as a spring loaded in the axial direction Ausdrückky, the force of the handle when not (correctly) engaged bayonet handle of the housing of the power tool away, so the extension of the Recess ejects.
  • Extension of the bayonet closure only corresponds to the core hole diameter of the recess or thinner Indianabil- det and the recess is provided with an internal thread, preferably with a metric M14 thread.
  • the element that can be adjusted relative to the extension is designed as a clamping element with which the extension can be tensioned in the direction of its fixing position.
  • the element is designed as an internally threaded ring, which cooperates with an external thread of the handle and which is rotatable against the housing of the power tool and / or the extension receiving recess.
  • Alternative ways of forming the element as a clamping element for example by training as a clamping wedge, are alternatively or additionally feasible.
  • the element is designed as a bolt of the bayonet closure, wherein the bolt projects beyond the extension in the radial direction and is adjustable in the axial direction relative to the extension, so that the handle against the housing Hand tool is braced and thus unintentional opening of the bayonet lock is prevented.
  • the element is designed as at least one in the radial direction, preferably outwardly, spring-loaded locking element, which is automatically adjusted to a fixing position when closing the bayonet closure, ie when turning the handle, preferably by 90 ° in which the locking element is a relative movement, in particular prevents a relative rotational movement between the handle and the housing of the power tool.
  • the additional element is designed as a locking element subjected to a spring force in the axial direction, which axially automatically locks into a fixing, ie, rotational, locking of the bayonet closure.
  • H. Locking position is adjusted, in which a further relative rotational movement between the handle and the housing of the power tool is prevented.
  • the adjustable relative to the extension element is part of the bayonet closure, wherein the element is arranged rotatable relative to the extension, and wherein the element projects beyond the extension in the fixing position in the radial direction and thereby a component, preferably the Recess, engages behind.
  • the element In the release position, the element is preferably aligned in the longitudinal direction with the extension or lies radially within the imaginary, elongated in the longitudinal direction, outer contour of the extension.
  • a receptacle formed at least in sections by the recess and preferably designed as a laterally open insertion pocket is provided for the element fixed to the extension, the preferably platelet-shaped element preferably having an internal thread it cooperates with an external thread of the extension.
  • Clamping wedge which is adjustable relative to the extension and with which the fixed to the extension or integrally formed with this element in the recess can be clamped.
  • the extension is part of a pivot bearing.
  • the extension is formed at right angles, preferably such that a parallel to the front side of the handle extending leg of the extension forms the axis of rotation of the pivot bearing. It is particularly advantageous, in addition to a projection formed in this way, to provide at least one latching hook formed by the additional element, which secures the handle in the fixing position on the handheld power tool.
  • a, in particular formed by the recess, or the recess comprehensive, in cross-section preferably T-shaped guide slot is provided for the element in which the element, preferably together with the extension, relative to the housing of the Hand tool is adjustable.
  • the guide slot is engaged in the fixing of the relative to the extension adjustable, on the extension, for example by means of a threaded element defined behind, wherein the element is pressed by the extension by rotation of the extension relative to the element against the back of the guide slot, whereby one Loosening the connection produced between the power tool and the handle is safely avoided.
  • Other possibilities for securing the rear grip against unintentional loosening for example, with a trained as a wedge, relative to the extension adjustable element, are additionally or alternatively feasible. It is preferred if the guide slot is formed by at least two housing shells.
  • Guide slot extends along the longitudinal extent of the power tool or in the circumferential direction at least over a portion of the power tool, so that the handle can be adjusted by adjusting the extension or the element in the guide slot relative to the power tool or the housing of the power tool and at any point , Particularly preferred by relative rotation of the extension to the element, in particular together with the handle can be fixed.
  • the invention also leads to a handle for a hand-held power tool described above, wherein the handle has either the extension or the recess and possibly the adjustable relative to the extension element, this element can also be assigned to the power tool.
  • the recess is arranged in each case the handle of the extension and the power tool or their housing ⁇ .
  • Posi ⁇ tioning of recess and extension feasible.
  • FIG. 2b shows two different, partially ge ⁇ cut views of a handle with multi-slotted extension, in which the designed as a soul, axially adjustable element is arranged,
  • FIG. 3b shows two views of an embodiment of a handle with an extension which can be split in the radial direction, the element having the extension being designed as an eccentric pin, FIG. Fig. 4 a and
  • Fig. 4b shows two views of an embodiment of a handle for a craft ⁇ generating machine, in which the element as adjustable in the axial direction
  • FIG. 5b shows two views of an embodiment of a handle, in which the element is formed as an extension arranged in a pivotally mounted latching hook from ⁇
  • Fig. 8a and Fig. 8b show two different views of a
  • Embodiment in which two, each one extension forming, adjustable in the radial direction latching hooks vorge are seen, which are adjustable by means of an adjustable in axia ⁇ ler direction central element in a radial direction,
  • FIG. 9b different views of a hand ⁇ griffes with radially adjacent to the Fort ⁇ set, as a latching hook-trained elements
  • FIG. 9c shows a section of the housing of the hand-held machine tool with recesses into which the elements designed as latching hooks according to FIGS. 9a and 9b can engage in the fixing position, FIG.
  • FIGS. 12a and 12b show different views of an embodiment of the handle with bayonet closure, wherein the component which is engaged behind by the extension in the fixing position is formed by the housing of the handheld power tool,
  • Element is designed as a clamping disc with internal thread, which is adjustable relative to the extension by turning,
  • FIGS. 13a and 13b shows a recess for the extension according to FIGS. 13a and 13b in the housing
  • FIGS. 14a and 14b show different views of an embodiment of the handle with bayonet closure, in which the adjustable element is formed as part of the bayonet closure and forms a bar which projects beyond the extension in the radial direction and axially relative to the projection Extension is adjustable, 14c is a partial perspective view of
  • FIG. 15a and FIG. 15b different views of a guide from ⁇ form of a handle with egg ⁇ nem bayonet lock and spring-loaded in the radial direction, lementen designed as locking elements E,
  • 16b show different views of an embodiment of the handle with a bayonet closure, wherein the elements are spring-loaded locking elements in the axial direction,
  • 17a and 17b show different views of an embodiment of the handle with a bayonet closure, wherein the element is part of the bayonet closure and is arranged rotatable relative to the extension,
  • FIGS. 18b show different views of an embodiment of the handle with a plate-shaped element which is fixed by means of a thread on the extension, the element being twisted of the extension against the back of egg ⁇ ner recording is braced,
  • FIGS. 18c and 18d show different Ausappelungsausfer- forms for receiving the extension
  • FIG. 19a and FIG. 19b different views of a guide from ⁇ form of a handle with egg ⁇ nem angled extension, which is part of a pivot bearing and adjustable with a designed as a latching hook, relative to the extension element,
  • FIG. 19c shows a hand tool with the handle shown in FIGS. 19a and 19b in two different pivot positions, FIG.
  • Fig. 20a shows another embodiment of a
  • FIG. 20b is an exploded view of a possible embodiment of a handle
  • Fig. 20c another alternative embodiment of the handle
  • Fig. 20d different attachment positions of the handle on the power tool.
  • FIGS. 1 a and 1 b first exemplary embodiments of a handle 1 for a handheld power tool are shown.
  • Handle 1 comprises a handle portion 2 and a mounting portion 3, wherein axially between the handle portion
  • a vibration-damping portion 4 is disposed of an elastic material. This prevents or minimizes the vibration transmission from the power tool and the attachment portion
  • the attachment portion 3 has an extension 5 (bolt) which can be inserted into a not shown recess (bushing) of the hand tool, also not shown.
  • an element 6 is fixed, which is in the embodiment shown as a spring element, more precisely as a U-shaped round wire spring with two substantially parallel legs 7, 8, is formed.
  • the element 6 is shown in a fixing position, in which the legs 7, 8 in each groove-shaped, in the circumferential direction of the extension 5 extending, Ausspa- engage ments 9, wherein the mutually parallel recesses 9 are arranged on two spaced-apart sides of the cylindrical extension 5.
  • the cylindrical extension 5 For reasons of centering of the cylindrical extension 5 is formed in the end frusto-conical shape.
  • the handle 1 Due to the provision of two mutually parallel recesses 9, the handle 1 is exclusively oriented to the power tool be set, namely in the shown and rotated by 180 ° to the mounting position.
  • a single recess designed as a circumferential groove is provided in the bolt-shaped extension 5, so that orientation-free fixing of the handle 1 on the handheld power tool is possible.
  • the legs 7, 8 of the element 6 must be spread open, so that the undercut 9 formed by the recesses is free again and the handle 1 can be removed in the sequence in the axial direction.
  • a not shown spreader can be provided, which also indicates whether the handle 1 is engaged or not.
  • This expansion element is resiliently mounted in the axial direction, for example, and can be arranged both centrally and eccentrically with respect to the cylindrical extension 5.
  • the handle 1 according to FIGS. 1 a and 1 b can be used to prevent unintentional opening. NEN, for example by means of a rotation lock on the housing of the power tool, are secured.
  • FIGS. 2 a and 2 b show a further exemplary embodiment of a handle 1 for a handheld power tool.
  • the attachment portion 3 and the attachment means 10 comprise a bolt-shaped extension 5, which is formed several times slit, wherein the longitudinal slots 11, which divide the extension 5 fan-like into sub-segments of a relative to the hangriff 1 lower portion (base) of the extension fifth up to its free end, the conical end portion, arranged by passing or formed.
  • an element 6, which is formed in this embodiment as a centric soul added.
  • the element 6 is adjustable in the axial direction with the aid of a rotary element 12 which is arranged adjacent to the handle section 2. By axial adjustment of the conical end portion 13 of the rod-shaped element 6, ie in Fig.
  • the extension 5 is widened in the radial direction and the fixation of the handle 1 is thus frictionally on the friction between the outer periphery of the extension 5 and the not shown recess realized in the power tool.
  • Other Mechanisms for axial adjustment of the element 6 within the extension 5 are alternatively feasible.
  • FIGS. 3a and 3b show a further exemplary embodiment of a handle 1 for a handheld power tool.
  • an end-side extension 5 which is slotted in the longitudinal direction, wherein the single longitudinal slot 11 does not continue to the free end of the extension 5.
  • extension 5 Within the intentionally weakened due to the longitudinal slot 11 extension 5 is a not shown, designed as an eccentric, element 6 is arranged.
  • the element 6 By rotating an outer clamping lever 14 in the direction of the arrow, the element 6 designed as an eccentric pin widened the extension 5 in the radial direction, whereby a frictional connection between the extension 5 and the recess (not shown) in the handheld power tool is produced.
  • the element 6 is rotated back into the starting position depending on the design of the eccentric bolt or rotated beyond a maximum point in the clamping direction until it is exceeded and thus in the consequence of the clamping pressure (in the radial direction) again subsides.
  • FIGS. 4a and 4b show a further exemplary embodiment of a handle 1 for a handheld power tool.
  • the end-side, cylindrical extension 5 with its conically tapering end portion.
  • an adjustable in the axial direction element 6 is arranged, which is formed in the illustrated embodiment as a clamping wedge, which is adjustable along a slope 16 in the extension 5.
  • the element 6 is spring-loaded by means of a spring 17 in the direction of its fixing position. The provision of the element 6 in its release position can be realized in various ways.
  • FIGS. 1a to 3d can be realized.
  • an integrated in the handle 1 turntable which exerts a restoring force on the element 6 by an axially acting wedging plane and thus repeals the compression produced.
  • the angle influenced by the angle of the bevel 16 and / or the wedge angle itself
  • the compression produced can be secured in a self-locking manner.
  • a position-oriented mounting of the handle 1 can be realized in the handle 1 shown or in all other handles shown, for example by chamfering the extension and providing a corresponding counter surface (bevel) in the recess of the power tool.
  • FIGS. 5a and 5b another embodiment of a handle 1 is shown, wherein this handle 1 comprises a bolt-shaped extension 5, in which an element 6 is arranged, this element 6 is designed as a latching hook and in the radial direction relative to the Extension 5 is mounted pivotably about a pivot axis 18.
  • the element 6 is spring-loaded by means of a spring 17 in the direction of its fixing position.
  • Fig. 5b it is shown that the extension 5 passes through a recess 19 in the power tool, wherein the latching hook 6 with a nose 20, the recess 19 having the component 21 engages behind in the radial direction, whereby the handle 1 is fixed to the power tool. To release the catch hook must be pivoted against the spring force of the spring 17 into the extension 5 only.
  • FIG. 6a and 6b another embodiment of a handle 1 is shown.
  • the handle 1 comprises a substantially cylindrical extension 5, in which a plurality of elements 6 designed as balls are arranged to be radially displaceable.
  • the fastening means 10 or the ball coupling formed by the elements 6 is designed such that the spherical elements 6 are held captive in the extension 5.
  • Within the designed as a hollow pin extension in the axial direction adjustable cone rod 24 is arranged.
  • the plug stem 24 is spring-loaded to the right by means of a frontally acting on this spring in the plane of the drawing of FIG.
  • a pressure element 25 is provided for axial displacement of the spring rod, which is arranged eccentrically within the handle portion.
  • the plug stem 24 is displaced counter to the force of the spring 17 in the plane of the drawing to the left, whereby the elements 6 are moved radially outward from the fixing position.
  • conical or conical designs of the plug stem 24 can be realized by which the elements 6 are pushed back even radially inwardly. It is also possible to apply the elements 6 (balls) directly itself by at least one spring in the radial direction outwards with a spring force.
  • FIGS. 7a and 7b Further exemplary embodiments of a handle 1 are shown in FIGS. 7a and 7b. Evident is an anti-rotation formed by axial webs 23. It can be seen further that on the bolt-shaped extension 5, an element 6 is arranged, which between the release position shown in Fig. 7a, in which it is aligned with the extension 5 in the longitudinal direction and the dashed line in Fig. 7b indicated fixing position by pivoting about a Eccentric shaft 26 is adjustable. The eccentric shaft 26 extends at a distance and parallel to the longitudinal center axis of the extension 5. In the fixing position indicated in FIG. 7b, the element 6 engages, for example, the component 21 of the hand-held power tool shown in FIG. 6b.
  • an actuating device 27 for pivoting the element 6 relative to the extension 5 has an end on the handle 1. ordered adjusting provided, which may alternatively be formed, for example, as a hub.
  • the handle 1 has a non-bolt-shaped extension 5.
  • a bolt-shaped extension 5 two adjustable in opposite radial directions, rasthakenförmige extensions 5 are provided.
  • a cone-shaped element 6 By axial adjustment of a cone-shaped element 6, the extensions 5 between a radially inwardly directed release position and a radially outwardly directed fixing position, in which the extensions 5 engage behind a component of the power tool, can be adjusted.
  • an end-side disk-shaped actuating device 27 is arranged in the embodiment shown on the handle 1, which has an internal thread, with which it is in engagement with an end-side external thread of the element 6.
  • other adjustment options for the extensions 5 and / or the element 6 can be provided.
  • FIGS. 9a and 9b show a further exemplary embodiment of a handle 1 for a handheld power tool, wherein the embodiment of the handle 1 shown cooperates with the recess 19 shown in FIG. 9c and the holes 28.
  • the handle 1 comprises an end, cylindrical and centrally arranged extension 5 with a conically tapered end portion and two adjustable in opposite radial directions, each designed as a latching hook, elements 6.
  • the elements 6 are inserted into the holes 28 indicated in Fig. 9c and within the hand tool lockable.
  • the handle 1 shown in FIGS. 9a and 9b is arranged in two oriented festistspositionen on the hand tool defined.
  • the elements 6 are spring-loaded in the radial direction outwards and thus automatically pivot into their fixing position (rear engagement position).
  • side unlocking buttons 29 are provided on the handle 1.
  • the handle 1 with Baj onett-closure will be described below with reference to the figures 10a to 17b, reference being made to the previous description of the figures with regard to additions to the description. It should be expressly pointed out that the invention also includes a combination of a handle 1 and a hand tool and a handle alone, in which or in which the fastening means 10 are designed as a Baj onett-closure. In this case, an additional element 6 does not necessarily have to be provided.
  • a bayonet closure is understood to mean a closure which is designed such that initially an axial relative movement takes place between the handle and the handheld power tool, in which the extension 5 is inserted into a recess 19, whereupon the extension 5, in particular together with the Handle, relative to the power tool, preferably by 90 °, is rotated into a locking position and / or, in particular instead of a rotary movement of the entire handle 1 or the power tool by twisting an element of the handle 1, a locking of the partially in the power tool inserted handle 1 is realized.
  • FIG. 1 In the exemplary embodiment according to FIG.
  • the handle 1 comprises an extension 5, which is arranged by two parallel lateral bevels 30, which cooperate with corresponding counter-surfaces (not shown) in the recess of the hand-held power tool, only directed (oriented) on the hand-held power tool ., which allows a non-rotationally symmetrical design of the handle portion 2.
  • an element 6 is arranged on the end, which is rotatable about a central axis of rotation relative to the fixed extension 5.
  • the rotation of the element 6 can be realized for example by an end-side actuator 27 (here turntable).
  • the element 6 engages behind a component or a forward crack or engages in a recess 9 within the handheld power tool.
  • the extension 5 with the element 6 in the relative position shown in FIG. 10 a is pushed axially into a recess of the hand tool, whereupon the element 6 is rotated relative to the extension 5, in particular by 90 °, so as to lock the handle 1 and the fastening means 10.
  • FIGS. 11a and 11b show a further embodiment of a handle 1 with bayonet closure.
  • an extension 5 of the handle 1 which is integrally formed and which has a lower portion 5a and an upper portion 5b, wherein the upper portion 5b laterally projects beyond the lower portion 5a in two opposite radial directions, so that the extension of the fifth only directed by undercutting an arranged in the power tool sheet 31 by rotating the entire handle 1 are fixed by 90 ° can.
  • the recess 19 for example, exclusively directly in the housing or another component of the power tool.
  • inclines 32 are introduced in the sheet 31 along which the upper portion 5b of the extension 5 slides when locking the fastener 10, resulting in an axial adjustment movement of the handle 1 in Direction of the hand tool machine results.
  • the recess 19 is provided with an internal thread 33, wherein the outer diameter of the extension 5 only corresponds to the core diameter of the recess 19 tion.
  • an optionally be provided element 6 is shown, which is designed as a spring-loaded pin in the axial direction. This can have at least one of two following tasks.
  • the pin is designed as a squeezing pin which ejects the handle 1 from the recess 19 if not properly locked.
  • a squeezing pin which ejects the handle 1 from the recess 19 if not properly locked.
  • the element 6 for example, be provided in the component 21, in which the element 6, which is adjustable relative to the extension 5 and part of the Fastening means 10 is, can engage, whereby an accidental release of the locking of the extension 5 is advantageously avoided.
  • the element 6 can also be designed as a latching hook.
  • FIGS. 12a and 12b The only difference from the exemplary embodiment shown in FIGS. 12a and 12b with the embodiment of a combination of a handle 1 and a handheld power tool shown in FIGS. 11a and 11b is that in the embodiment shown in FIGS. 12a and 12b Recess 19 is formed with the slopes 32 as part of the housing 34 of the power tool, the extension 5 is thus lockable directly to the housing 34 of the power tool.
  • a spring element preferably a plate spring element
  • tolerance compensation which is preferably arranged on the side of the housing 34 facing the handle 1.
  • Fig. 12a it can be seen that the extension 5 is provided at its lower end with a centering cone 35.
  • FIGS. 13a and 13b in combination with FIG. 13c show a further exemplary embodiment of a combination of handle 1 and handheld power tool, the fastening means 10 in the exemplary embodiment shown comprising a bayonet closure.
  • a centric, end-side extension 5 is provided on the handle 1, wherein the upper portion 5b projects beyond the lower portion 5a in two radial directions, so that a substantially T-shaped extension in cross-section is obtained.
  • This extension 5 is inserted into the recess 19 shown in Figs. 13b and 13c and can be rotated by 90 ° Behind element 21.
  • a trained as a clamping element 6 is shown.
  • the element formed by a disc has an internal thread, which cooperates with an external thread of the handle 1, so that the element 6 can be rotated against the component 21, whereby the upper portion 5b of the extension 5 against the back 36 of the component 21st is strained.
  • Recesses 37 are provided in the rear side 36 for the upper section 5b of the extension 5, in order to produce a form fit, which acts as an anti-rotation lock, between the component 21, which alternatively can also be formed by the housing of the handheld power tool.
  • FIGS. 14a to 14c show a further combination of a handle 1 and a handheld power tool, wherein the fastening means 10 again comprise a bayonet closure.
  • the handle 1 is equipped with a projection 5, which is formed substantially cylindrical.
  • a projection 5 which is formed substantially cylindrical.
  • the extension 5 is an axially adjustable relative to the extension adjustable, the extension 5 in two radial directions superior, designed as a bolt, element 6 is arranged.
  • the component 21 see Fig. 14c
  • the element 6 thus essentially has a similar function to the upper section 5b of the extension 5 according to FIGS. 13a and 13b.
  • the element 6 is after inserting the extension 5 into the recess 19 and after turning the handle 1 and thus the extension 5 by 90 ° in the axial direction from the free end of the Extension 5, ie in the direction handle portion 2, adjusted, whereby the element 6 against the back 36, more precisely in indentations 37, is braced (rotation lock).
  • the extension 5 moves further into the recess 19 and, as a consequence, the entire handle 1 is moved in the direction of the handheld power tool.
  • the element 6 is mounted axially adjustable in a cutout 38 in the extension 5.
  • an end-side hub is provided, which engages by means of an internal thread in an external thread 39 of a rod 40, wherein the rod 40 is arranged centrally and extending in the axial direction within the extension 5 and the handle portion 2.
  • the element 6 is fixed to the rod 40.
  • FIGS. 15a and 15b show a further exemplary embodiment of a handle 1 for a handheld power tool, wherein the fastening means 10 comprise a bayonet lock.
  • the fastening means 10 comprise a bayonet lock. This is formed by the extension 5 with its upper widened in the radial direction section 5b and its lower portion 5a, wherein the extension 5 cooperates with a corresponding recess in the power tool.
  • the fastening means 10 comprise two elements 6 designed as locking elements, which, when the handle 1 is rotated, in which the upper section 5b of the extension 5 is brought into a rear grip position, in a housing contour, not shown, of the handheld power tool in the radial direction against the force respectively a spring are tensioned to relax in the end position of the rotational movement in each case in a recess detent and against rotation.
  • FIGS. 16a and 16b show a further exemplary embodiment of a handle 1 for a handheld power tool, wherein the fastening means 10 of the hand tool and the handle 1 comprise a bayonet closure which is formed by an extension 5 and a recess 19 (not shown) is.
  • the extension 5 elements 6 which are designed as locking elements and the snap in the Fixierposi- tion of the bayonet lock in axial recesses in the power tool, especially in the housing of the power tool.
  • the rod-shaped elements 6 are spring-loaded axially in the direction of the hand-held power tool.
  • the locking disk 41 shown In order to enable a release of the handle 1 of the power tool, the locking disk 41 shown must be rotated, wherein by rotating the locking disk 41, the elements 6 by means of rising, arranged within the handle 1 and connected to the locking disk 41, opposite paths against the force be withdrawn by springs in the handle 1.
  • FIGs. 17a and 17b another embodiment of a handle 1 for a hand tool with a Baj onett-closure is shown.
  • a plate-shaped extension 5 of the handle 1 which cooperates with a not shown recess 19 in the power tool.
  • the fastening means 10 comprise a rotatably mounted on the handle 1 EIe- element 6, which is arranged in a recess 42 of the extension 5 and which is part of the bayonet closure.
  • the element 6 is formed analogously to the extension 5 according to FIGS. 16a and 16b, thus has a radially thickened upper portion 6b, which projects beyond a lower portion 6a in the radial direction.
  • an end-side actuator 27 is provided, which is designed as a hub. Rising undercut flanks 43 of the upper portion 6b of the element 6, which can be formed directly or indirectly sprung, allow a clearance-free seat of the handle 1 in the hand tool.
  • FIGS. 18a and 18b show further embodiments of a handle 1 for a handheld power tool.
  • an extension 5 on the handle 1 wherein the extension 5 is equipped with an external thread 44 which cooperates with an internal thread of a plate-shaped element 6.
  • a receptacle 53 is provided with a recess 19 which, for example, as in FIG. 18 d, may be part of an insertion pocket 45 for the element 6 fixed to the housing of the manual machine or that of or in the housing 34 the hand tool is feasible.
  • the extension 5 By inserting the extension 5 into the receptacle 53, such that the plate 6 engages behind a component, in particular the receptacle 53 (insertion pocket 45) or the housing 34, the element 6 and the extension 5 are adjusted relative to one another, whereby the element 6 against the rear side of the receptacle 53 (insertion pocket 45) or the rear side of the housing 34. is clamped, whereby the handle 1 is held securely.
  • the relative movement between the extension 5 and the element 6 can be realized on the one hand by turning the handle 1 and / or by actuating an end-side actuating device 27.
  • FIGS. 19a and 19b show a further exemplary embodiment of a handle 1 for a hand-held power tool, wherein an extension 5 is also fixed to the attachment section 3 of the handle 1 in this exemplary embodiment.
  • the extension 5 is formed in the embodiment shown as an angular element and forms the part of a pivot bearing 46, by means of which the handle 1 relative to the hand tool (shown in Fig. 19) is pivotable and, for example, in position can be brought, in which it extends parallel to the power tool.
  • the extension 5 is formed in the embodiment shown as an angular element and forms the part of a pivot bearing 46, by means of which the handle 1 relative to the hand tool (shown in Fig. 19) is pivotable and, for example, in position can be brought, in which it extends parallel to the power tool.
  • additional Part of the fastening means 10 is formed as a latching hook element 6, which is arranged at radial distance from the extension and which is spring-loaded radially outward and engages behind the housing 34 of the power tool in a fixing position shown in Fig. 19a.
  • the element 6 can be adjusted from the fixing position into a release position, in which then the handle 1 by means of the pivot bearing 46 is pivotable and / or removable.
  • the pivot bearing 46 can thus be designed according to a first alternative so that the extension 5 is releasably inserted into the recess 19 or according to a second alternative such that the handle 1 is permanently held by the pivot bearing 46 on the hand tool or attached thereto is.
  • FIGS. 20a to 20d show further exemplary embodiments of a handle 1, partly in combination with a handheld power tool.
  • the handle 1 has an end extension 5 with external thread, wherein the external thread is screwed to an internal thread of an element 6.
  • the T-slot 47 is formed in the embodiment shown by two housing shells 48, 49 of the housing 34 of the power tool and extends in the housing circumferential direction.
  • the handle 1 can, as can be seen from Fig. 20d, at different
  • Positions are determined on the housing. For this purpose, it only has to be adjusted together with the element 6 along the T-slot 47 (guide slot). To the handle 1 on set the hand tool, the handle 1 and thus the extension 5 is adjusted relative to the element 6, whereby the element 6 is clamped in the T-groove 47.
  • the element 6 fixedly to the extension 5 or to form it integrally with it, in which case a further element in the sense of the invention must be provided, which is movable relative to the extension 5 and by means of which the element 6 can be clamped in the T-groove 47.
  • such an element can be designed as a clamping wedge, which produces the pressing or picks it up again.
  • the handle 1 can be provided with a slider 50, which permits attachment of the handle 1 to the handheld power tool only at a certain or at several specific circular surface sectors.
  • the handle 1 pivotably relative to the slider 50 via a pivot joint 51, whereby handle positions are possible at an angle to the longitudinal axis of the hand tool.
  • a pivot joint 51 folding in of the handle 1, preferably parallel to the longitudinal axis of the hand tool, can also be realized.
  • the inclination of the handle allows a much closer approach to possible working space-disturbing contours and thus a better and more space-saving stowage (see Fig. 19c) of the Salesforce- machine together with the hangriff.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Portable Power Tools In General (AREA)

Abstract

La présente invention a pour objet une machine-outil manuelle équipée d'une poignée, en particulier d'une poignée supplémentaire pour une machine-outil manuelle, dotée de moyens de fixation (10) pour fixer la poignée (1), en particulier de manière amovible, sur la machine-outil manuelle, les moyens de fixation (10) présentant un prolongement (5) qui, au moins par endroits, peut être logé dans un évidement (19), le prolongement (5) étant agencé sur la poignée (1) et l'évidement (19) dans la machine-outil manuelle ou ledit prolongement (5) étant agencé sur la machine-outil manuelle et l'évidement (19) dans la poignée (1). Selon l'invention, il est prévu que les moyens de fixation (10) comportent au moins un élément (6) qui peut être déplacé par rapport au prolongement (5) et participe à l'établissement et/ou à la désolidarisation et/ou au maintien d'une liaison par complémentarité de forme et/ou par friction entre la poignée (1) et la machine-outil manuelle.
PCT/EP2008/063648 2007-11-02 2008-10-10 Machine-outil manuelle et poignée WO2009056433A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13159853.4A EP2647473B1 (fr) 2007-11-02 2008-10-10 Machine-outil manuelle et poignée
EP08805233.7A EP2217409B1 (fr) 2007-11-02 2008-10-10 Machine-outil manuelle avec poignée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007052359.0 2007-11-02
DE102007052359A DE102007052359A1 (de) 2007-11-02 2007-11-02 Handwerkzeugmaschine sowie Handgriff

Publications (1)

Publication Number Publication Date
WO2009056433A1 true WO2009056433A1 (fr) 2009-05-07

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PCT/EP2008/063648 WO2009056433A1 (fr) 2007-11-02 2008-10-10 Machine-outil manuelle et poignée

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Country Link
EP (2) EP2217409B1 (fr)
DE (1) DE102007052359A1 (fr)
WO (1) WO2009056433A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102791431A (zh) * 2010-03-10 2012-11-21 株式会社牧田 电动工具的套筒起子头的防脱构造
DE102010063885A1 (de) * 2010-12-22 2012-06-28 Hilti Aktiengesellschaft Zusatzhandgriff, Handwerkzeugmaschine, System
DE102010063912A1 (de) * 2010-12-22 2012-06-28 Hilti Aktiengesellschaft Zusatzgriff, Handwerkzeugmaschine, System
DE102020112274A1 (de) 2020-05-06 2021-11-11 C. & E. Fein Gmbh Elektrowerkzeug mit Zusatzhandgriff
US11931879B2 (en) 2021-06-07 2024-03-19 Black & Decker Inc. Power tool dual-trigger operation
EP4327984A1 (fr) 2022-08-26 2024-02-28 C. & E. Fein GmbH Dispositif de réglage de poignée

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619520A1 (de) 1986-06-10 1987-12-17 Scintilla Ag Zusatzhandgriff fuer handbohrmaschinen
US20020182991A1 (en) 2001-06-05 2002-12-05 Shinn Fu Corporation Vehicle waxing/buffing appliance with removeable/repositioning handle
US20060067801A1 (en) * 2004-09-24 2006-03-30 One World Technologies Limited Portable router having an inerchangeable handle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8225299U1 (de) * 1982-09-08 1984-02-16 Robert Bosch Gmbh, 7000 Stuttgart Zusatzhandgriff fuer eine handwerkzeugmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619520A1 (de) 1986-06-10 1987-12-17 Scintilla Ag Zusatzhandgriff fuer handbohrmaschinen
US20020182991A1 (en) 2001-06-05 2002-12-05 Shinn Fu Corporation Vehicle waxing/buffing appliance with removeable/repositioning handle
US20060067801A1 (en) * 2004-09-24 2006-03-30 One World Technologies Limited Portable router having an inerchangeable handle

Also Published As

Publication number Publication date
DE102007052359A1 (de) 2009-05-07
EP2647473A1 (fr) 2013-10-09
EP2217409B1 (fr) 2013-05-01
EP2647473B1 (fr) 2020-07-29
EP2217409A1 (fr) 2010-08-18

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