WO2009056433A1

WO2009056433A1 - Hand power tool and handle

Info

Publication number: WO2009056433A1
Application number: PCT/EP2008/063648
Authority: WO
Inventors: Cornelius Boeck; Joachim Schadow; Juergen Wiker; Sinisa Andrasic
Original assignee: Robert Bosch Gmbh
Priority date: 2007-11-02
Filing date: 2008-10-10
Publication date: 2009-05-07
Also published as: EP2647473B1; EP2217409A1; EP2647473A1; DE102007052359A1; EP2217409B1

Abstract

The invention relates to a hand power tool having a handle, particularly an additional handle for a hand power tool, having attachment means (10) for, particularly releaseably, attaching the handle (1) to the hand power tool, wherein the attachment means (10) comprise an extension (5) that can be received in a recess (19) at least in segments, wherein either the extension (5) is disposed on the handle (1) and the recess (19) in the hand power tool, or the extension (5) is disposed in the hand power tool and the recess (19) in the handle (1). According to the invention, the attachment means (10) comprise at least one element (6) adjustable relative to the extension (5) and participating in producing and/or releasing and/or securing a form-fit and/or friction-fit connection between the handle (1) and the hand power tool.

Description

description

title

Hand tool and handle

State of the art

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.

There are additional handles for electric hand tool machines are known, which are releasably secured by means of fasteners on the power tool. For example, in DE 36 19 520 Al an additional handle for hand drills described which includes a cooperating with a clamping screw clamping ring, by means of which the auxiliary handle against rotation and axial displacement relative to the spindle neck of a hand drill is securable. A disadvantage of the known embodiment is that the fasteners attack the hand drill and thereby can be a hindrance in certain work (large interference contour).

In angle grinders, it is known to screw the equipped with a threaded extension handle with an internal thread recess of the power tool. In order to ensure a sufficiently strong connection, the combination external thread / internal thread has a comparatively large axial extension, so that the screwing takes comparatively much time, which can be perceived as annoying with changing activities. DISCLOSURE OF THE INVENTION Technical Problem

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.

Technical solution

The object is achieved in terms of the power tool with the features of claim 1 and in terms of the handle with the features of claim 26. Advantageous developments of the invention are specified in the subclaims. All combinations of at least two features specified in the description, the claims and / or the figures also fall within the scope of the invention.

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. 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. Preferably, the recess is designed internal thread-free. Under 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. It is within the scope of the invention to associate the extension with the handle and the recess of the manual machine, wherein 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. Depending on the embodiment of the embodiments described in more detail below, it is within the scope of the invention to assign the extension a latching and / or adjusting and / or clamping function. By providing the at least one element, which belongs to the fastening means and is provided in addition to the extension, there are multiple possibilities for the concrete realization of the fastening means. 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.

It is further within the scope of the invention that either the 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.

In a further development of the invention, it is advantageously provided that the extension can only be engaged in one or more concrete relative positions, ie. 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.

With regard to the specific embodiment of the adjustable relative to the extension element and with regard to its interaction with the recess and / or the Fort sentence and / or another element, there are a variety of implementation options. These are described below:

According to a first embodiment, 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. Preferred is an embodiment in which 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. In the event that a position-oriented fixation of the handle is to be realized relative to the power tool, an embodiment is preferred in which 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.

According to a further embodiment it is provided that the extension can be expanded in the radial direction by means of the element. Preferably, the extension is for this purpose, preferably multiple, slotted in the longitudinal direction. By adjusting the element relative to the extension, 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. With regard to the formation of the element in longitudinally slotted extension, there are different embodiments. According to a first embodiment variant, the element is designed as an adjustable soul in the axial direction within the extension. In this embodiment, the at least one longitudinal slot preferably extends to the free end of the extension. Alternatively, it is conceivable to form the element as an eccentric bolt, wherein by spreading the eccentric pin a spreading, ie radial expansion of the extension, is realized. Preferred is an embodiment in which 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.

According to a further embodiment, it is provided that 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.

According to a further alternative embodiment, the element is designed as a latching hook, which preferably in

Direction of its fixing position spring force is applied. It is particularly preferred if 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. In particular, when the latching hook is provided with an insertion-side run-on slope, 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.

According to a further alternative embodiment, 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.

According to a further embodiment, 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). As a result, the eccentric element between a release position in which it is aligned in the axial direction with the extension and a fixing position in which it projects beyond the extension in the radial direction and engages behind a component or is received in a recess, adjustable.

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. Preferably, 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.

According to an alternative embodiment it is provided that the element is designed as a radially adjacent to the extension arranged latching hook. Preferably, the at least one latching hook in the radial direction, preferably outwardly, spring-loaded. Particularly preferred is an embodiment with two adjustable in opposite directions locking hooks.

According to a further embodiment of the invention, the fastening means are designed as Baj onettverschluss or include such. Under a Baj onettverschluss 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. Preference is given to an embodiment of the bayonet closure in which the closure component to be twisted during the twisting (actual locking) slides along a thread-shaped slope, resulting in an axial movement of the handle relative to the power tool in the direction of the power tool. As an independent invention, an embodiment is disclosed at this point, which is to be claimed separately and in which 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. In other words, the fastening means in this embodiment (exclusively borrowed) consist of the extension and the recess, which together form a Baj onett closure. Only optionally, the attachment means may comprise an additional, adjustable relative to the extension element.

However, 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.

According to a possible embodiment variant of the bayonet closure, 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.

It is also an embodiment feasible, in which the additional element as a unintentional opening of the bayonet lock preventing element, that is, as a fuse element is formed. For example, that is Element arranged for this purpose in the axial direction adjustable and prevents in the fixing position, a relative rotational movement between the handle and the housing of the power tool in that it engages in a pointing in the axial direction recess.

Particularly preferred is an embodiment of 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.

Particularly preferred is an embodiment in which the adjustable relative to the extension element is designed as a spring loaded in the axial direction Ausdrückstift, 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.

In order to be able to use hand grips of the prior art with a threaded extension with the hand tool, an embodiment is preferred in which the

Extension of the bayonet closure only corresponds to the core hole diameter of the recess or thinner ausgebil- det and the recess is provided with an internal thread, preferably with a metric M14 thread.

In order to prevent unintentional opening of the locked or closed bayonet closure, an embodiment is preferred in which 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. For example, 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.

Of particular advantage is an embodiment in which 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.

According to a further alternative embodiment, 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.

According to an alternative embodiment, 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.

According to a particularly preferred embodiment, 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. 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.

In a development of the invention, it is advantageously provided that 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. By relative rotation of the extension, preferably together with the handle, relative to the element, the element can be clamped in the receptacle. It is also an execution conceivable form in which the element described above is firmly connected to the extension, such that no relative movement between this element and the extension is possible, in which case an additional element according to the invention is provided, for example a

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.

In a further development of the invention is advantageously provided that the extension is part of a pivot bearing. Preferably, 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.

According to an alternative embodiment it is provided that 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.

Particularly preferred is an embodiment in which the

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.

Particularly many adjustment options or mounting options of the handle relative to the housing of the power tool are obtained in the event that the handle via a pivot joint relative to a slider is pivotable.

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. Brief description of the drawings

Further advantages, features and details of the invention will become apparent from the following description of preferred embodiments and from the drawings. In the drawings, the recess is arranged in each case the handle of the extension and the power tool or their housing ^¬ . However, it is a contrasted Posi ^¬ tioning of recess and extension feasible.

Show it:

Fig. Ia and

1b different embodiments of a handle for a hand tool ^¬ machine, in which the adjustable element is designed as a spring element,

Fig. 2a and

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. 3a and

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

Clamping wedge is formed,

Fig. 5a and

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. 6a and

6b two partially sectioned views of an embodiment of a handle, in which a plurality of, in the radial Rich ^¬ tion to the extension adjustable, designed as balls elements are provided

Fig. 7a and

7b two views of an embodiment of a handle, in which the element is arranged rotatable about an eccentric axis relative to the extension,

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. 9a and

Disposed Fig. 9b different views of a hand ^¬ griffes with radially adjacent to the Fort ^¬ set, as a latching hook-trained elements,

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.

Fig. 10a and

10b different views of an embodiment of a handle, in which the element axially adjacent to the extension and rotatable relative to this is formed and arranged, where ^¬ in the element and the extension and the recess, not shown, part of egg ^¬ nes bayonet Closure are,

Fig. IIa and

IIb different views of an embodiment of a handle, in which the extension is part of a Bajo ^¬ nice closure and the element is formed as a locking element and / or off ^¬ throwing pin,

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,

Fig. 13a and

13b different views of an embodiment of the handle with bayonet closure, wherein the adjustable

Element is designed as a clamping disc with internal thread, which is adjustable relative to the extension by turning,

13c 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

Recess for the extension according to FIGS. 14a and 14b,

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,

Fig. 16a and

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,

Fig. 18a and

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 Ausnehmungsausfüh- forms for receiving the extension and

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,

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

Handle, in which an extension is arranged on the extension, which is guided in a guide slot and by

Twisting of the extension is clamped relative to the element in the guide slot,

20b is an exploded view of a possible embodiment of a handle, Fig. 20c another alternative embodiment of the handle and

Fig. 20d different attachment positions of the handle on the power tool.

Embodiments of the invention

In the figures, the same components and components with the same function with the same reference numerals.

In FIGS. 1 a and 1 b, first exemplary embodiments of a handle 1 for a handheld power tool are shown. Of the

Handle 1 comprises a handle portion 2 and a mounting portion 3, wherein axially between the handle portion

2 and the fixing portion 3, 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

3 on the handle section 2.

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. Within the hand tool 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. In Fig. Ia, 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.

For reasons of centering of the cylindrical extension 5 is formed in the end frusto-conical shape. The element 6 and the extension 5, together with the not shown recess for receiving the extension fastening means 10 for releasably securing the handle designed as an additional handle th 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.

In the exemplary embodiment according to FIG. 1 b, 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.

To release the fixation or the fastening means 10, 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. For spreading the legs 7, 8, 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.

In the following, further embodiments of handgrips and / or handheld power tools are described. Essentially, only differences to the exemplary embodiments according to FIGS. 1 a and 1 b are discussed, so that reference is made to FIGS. 1 a and 1 b and the associated description in order to avoid repetition with regard to the similarities.

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. Within the extension 5 is 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. 2b in the plane to the right, 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. Evident is 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. Within the intentionally weakened due to the longitudinal slot 11 extension 5 is a not shown, designed as an eccentric, element 6 is arranged. 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. To release the handle 1 and the fastener 10, 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. Evident is the end-side, cylindrical extension 5 with its conically tapering end portion. In a longitudinally facing slot 15 within the extension 5, 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. By axial adjustment of the element 6, this is moved in the radial direction to the outside and thus jams the extension 5 within the not shown recess of the power tool. As can be seen from FIG. 4b, 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. For example, the solutions shown in FIGS. 1a to 3d can be realized. Alternatively, it is conceivable to provide 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. By choosing 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.

If required, 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.

In 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. In 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. By providing a run-on slope 22 (contact surface), an automatic adjustment of the element 6 into its release position counter to the spring force of the spring 17 is made possible when the handle 1 is inserted into the hand-held power tool. After reaching the axial position of the extension 5 shown in Fig. 5b, the element 6 pivots automatically in the fixing position. In Fig. 5a, a pointing in the axial direction web 23 is shown. This forms an anti-rotation, which can be realized in any other handles described in the application. The anti-rotation device serves to enable the assembly of the handle 1 on the handheld power tool only in one or more defined position (s).

In Figs. 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. 6b, al- so in an adjustment position in which the elements 6 (balls) are in a radially extended fixing position in which they engage behind a recess 21 19 exhibiting component 21 in the radial direction. For example only, a pressure element 25 is provided for axial displacement of the spring rod, which is arranged eccentrically within the handle portion. By axial pressing of the pressure element 25 (extension of the plug stem 24), 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. There are also 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.

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. For example only, 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.

In the embodiment according to FIGS. 8 a and 8 b, the handle 1 has a non-bolt-shaped extension 5. Instead of a bolt-shaped extension 5, two adjustable in opposite radial directions, rasthakenförmige extensions 5 are provided. 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. For axial adjustment of the element 6, 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. Alternatively, 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 festigungspositionen 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). To release the elements 6, ie for transferring into a radially inwardly directed release position, side unlocking buttons 29 are provided on the handle 1.

Some embodiments of 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. In this case, 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. In the exemplary embodiment according to FIG. 10, 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. At the extension 5, 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). In the fixing position shown in FIG. 10b, the element 6 engages behind a component or a forward crack or engages in a recess 9 within the handheld power tool. To fix the handle 1 on the hand tool, first 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. Evident is 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. Instead of providing a sheet 31 with a recess 19, it is conceivable to provide the recess 19, for example, exclusively directly in the housing or another component of the power tool. In the gezeig- th embodiment, two opposing, each in the circumferential direction, inclines 32 (bevels) 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.

From Fig. IIb it can be seen how the sheet 31 is received in corresponding grooves 52 in a component 21 with a recess 19.

As can be seen from Fig. IIb, 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. By providing the internal thread 33 and previously known handles with a male screw in the recess 19 can be set.

In Fig. IIa, 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. According to a first embodiment, the pin is designed as a squeezing pin which ejects the handle 1 from the recess 19 if not properly locked. Additionally or alternatively, a

Recess for the element 6 (pin), 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. Alternatively, the element 6 can also be designed as a latching hook.

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. The provision of a separate sheet was dispensed with. In the embodiment according to FIGS. 12a and 12b, a spring element, preferably a plate spring element, can be provided as tolerance compensation, which is preferably arranged on the side of the housing 34 facing the handle 1. In 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. For this purpose, 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. In order to prevent unintentional release, 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. Within 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. By means of the element 6, the component 21 (see Fig. 14c) can be engaged behind. The element 6 thus essentially has a similar function to the upper section 5b of the extension 5 according to FIGS. 13a and 13b. In order to avoid unintentional loosening of the fastening means 10, 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). As a result of the relative displacement of the element 6 relative to the extension 5, 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. As an actuating device for the axial displacement of the element 6, 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. 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.

Furthermore, 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. The release or unlocking of the elements 6 via unlocking 29th 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. Evident are two radially spaced from 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. For this purpose, the rod-shaped elements 6 are spring-loaded axially in the direction of the hand-held power tool. 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.

In Figs. 17a and 17b, another embodiment of a handle 1 for a hand tool with a Baj onett-closure is shown. Evident is a plate-shaped extension 5 of the handle 1, which cooperates with a not shown recess 19 in the power tool. In addition to the extension 5, 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. The fixing of the handle 1 in the hand tool machine by inserting the extension 5 in a recess and subsequent rotation of the element 6 by 90 °, so that this engages behind a component or a projection, etc. in the hand tool with the upper portion 6b of the element 6 , For rotation of the element 6 relative to the extension 5, 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. Evident is 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. For receiving the extension 5, 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. 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.

It is also possible to connect the element 6 fixedly to the extension 5 or to form it integrally with it and to realize the distortion of the element 6 in the receptacle 53 (insertion pocket 45) by means of another element (not shown) If this element is part of the fastening means 10 and represents the element in the sense of the invention, which is adjustable relative to the extension 5 and in the manufacture and / or release and / or Sehern a positive and / or non-positive connection between the handle and the Hand tool is involved.

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. Contrary to all other embodiments described above, 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. Next to the extension 5 is

Part of the pivot bearing 46, the recess 19 shown in Fig. 19a in the housing 34 of the power tool in which the extension 5 is inserted laterally. 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. By means of a release button 29, 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 extending transversely to the longitudinal extent of the extension 5 element 6, like the extension 5, received in a cross-sectionally T-shaped groove 47, which simultaneously forms the recess 19 for receiving the extension 5 and a guide slot. 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. Alternatively, it is conceivable to connect 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. For example, such an element can be designed as a clamping wedge, which produces the pressing or picks it up again.

As can be seen from FIGS. 20b and 20c, 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.

As can be seen from FIG. 20b, it is further possible to arrange 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. With a corresponding design of the pivot joint 51, folding in of the handle 1, preferably parallel to the longitudinal axis of the hand tool, can also be realized. In this principle, 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 Handwerk- machine together with the hangriff.

Claims

claims

1. Hand tool with a handle, in particular an auxiliary handle for a hand tool, with fastening means (10) for, in particular detachable, attaching the handle (1) on the power tool, wherein the fastening means (10) have an extension (5), at least in sections in a recess (19) is receivable, wherein either the extension (5) on the handle (1) and the recess (19) in the hand tool or the extension (5) on the hand tool and the recess (19) in the Handle (1) are arranged,

characterized,

in that the fastening means (10) comprise at least one element (6) which is adjustable relative to the extension (5) and which is engaged during the manufacture and / or release and / or securing of a positive and / or frictional connection between the handle (1) and the hand-held power tool ) exhibit .

2. Hand tool according to Claim 1, characterized in that the extension (5) oriented orientation or exclusively oriented in the recess (19) insertable bar and / or in the recess (19) with the element (6) can be fixed.

3. Hand tool according to one of claims 1 or 2, characterized in that the element (6) as a spring element (17), preferably as a substantially U-shaped round wire spring is formed, which in a fixing position in at least one in the extension (5 ), in particular designed as a groove, recess (9) engages.

4. Hand tool according to Claim 3, characterized in that at least two mutually parallel, in particular each formed as a groove, recesses (9) on the extension (5) are provided which, at least approximately, parallel to legs (7, 8) of the spring element (17) are alignable.

5. Hand tool according to one of the preceding claims, characterized in that the extension (5) is slotted in the longitudinal direction, and that the element (6) by relative displacement to the extension (5), the radial extension of the extension (5) arranged changing and is trained.

6. Hand tool according to Claim 5, characterized in that the element (6) in the extension (5) arranged, adjustable in the axial direction, soul comprises.

7. Hand tool according to one of claims 5 or 6, characterized in that the element (6) comprises a rotatably mounted Exzen- terbolzen.

8. Hand tool according to one of the preceding claims, characterized in that the element (6) as in the axial direction relative to the extension (5) adjustable, preferably spring-loaded in a clamping direction, clamping wedge is formed.

9. Hand tool according to one of the preceding claims, characterized in that the element (6) as, at least in sections, in the extension (5) arranged, latching hook is formed.

10. Hand tool according to one of the preceding claims, characterized in that the element (6) comprises at least one extension (5) trapped ball which radially relative to the extension (5) between a release position and a fixing position, preferably by means of a plug stem ( 24), is adjustable.

11. Hand tool according to one of the preceding claims, characterized in that the element (6) is rotatably mounted relative to the extension (5) about an eccentric axis extending eccentrically relative to the longitudinal center axis of the extension (5).

12. Hand tool according to one of the preceding claims, characterized in that the extension (5) is designed as at least one latching hook, of the adjustable in the axial direction, preferably as a plug stem (24) formed element (6) in the radial direction between a Release position and a fixing position is adjustable.

13. Hand tool according to one of the preceding claims, characterized in that the element (6) as in the radial direction outward spring-loaded, radially adjacent to the extension (5) arranged, latching hook is formed.

14. Hand tool according to one of the preceding claims, characterized in that the extension (5) and / or the recess (19) and / or the element (6) are formed as part / e of a bayonet closure / is.

15. Hand tool according to Claim 14, characterized in that the element (6) as in the axial direction relative to the extension (5) adjustable, an unintentional tes opening the bayonet lock preventing securing element, in particular locking element is formed.

16. Hand tool according to Claim 14 or 15, characterized in that a preferably provided with at least one pitch, of the extension (5) and / or the element (6) in a fixing behind engaged, component (21) of a in the housing of the power tool arranged, in particular as a sheet metal (31) formed, separate component or is formed by the housing itself.

17. Hand tool according to one of claims 14 to 16, characterized in that the element (6) as a clamping element, in particular as relative to the extension (5) rotatable, an unintentional opening of the bayonet closure preventing, clamping element is formed.

18. Hand tool according to one of claims 14 to 17, characterized in that the element (6) as in the extension (5) recorded, the extension (5) in the radial direction superior, in the axial direction relative to the extension (5) adjustable latch is trained.

19. Hand tool according to one of claims 14 to 18, characterized in that the element (6) comprises at least one locking element which is spring-loaded in the radial direction and which is automatically radially adjustable into a fixing position when the bayonet closure is closed in rotation.

20. Hand tool according to one of claims 14 to 19, characterized in that the element (6) comprises at least one spring-loaded in the axial direction locking element, which is automatically axially adjustable in a fixing position during the rotary closing of the bayonet closure.

21. Hand tool according to one of the preceding claims, characterized in that the element (6) is part of a bayonet closure and in a cutout (38) of the

Extension (5) arranged and relative to the extension (5) is rotatable.

22. Hand tool according to one of the preceding claims, characterized in that a, in particular of the recess (19) formed, preferably as Einschublasche (45) ^{fancy ¬} te, receiving (53) for the element (6) is provided and that the element (6) on the extension (5) is fixed and the receptacle (53) engages behind, and that the element (6), preferably by relative Verstel ^¬ len of the extension (5) to the element (6), in the receptacle (53) is braced.

23. Hand tool according to one of the preceding claims, characterized in that the extension (5) is part of a pivot bearing (46) and that the element (6) is designed as adjustable in the radial direction latching hook.

24. Hand tool according to one of the preceding claims, characterized in that a, in particular formed by at least two housing ^¬ shells, preferably designed as a T-groove (47), guide slot for the attached to the extension (5) element (6) is provided, in which the element (6) together with the handle (1) relative to the hand tool, in particular transversely and / or in the direction of its longitudinal extent, is adjustable, and that the element (6), in particular by relative displacement of the extension ( 5) to the element (6), is clamped in the guide slot.

25. Hand tool, in particular according to one of the reciprocating before ^¬ claims, with an actuating means with the aid of Befes- (10) to the hand-tight ^¬ gatherable handle (1), characterized in that the fastening means (10) comprise a bayonet closure.

26. Handle, in particular additional handle, for a hand tool with the features of one of the preceding claims, wherein the handle (1) the recess (19) or the extension (5) and / or the re- having adjustable to the extension (5) adjustable element (6).