Handle device for a hand-held power tool

Abstract

The invention relates to a handle device (40) for releasable fastening on a hand-held power tool (10), wherein the handle device has a clamping ring (41) with a clamping mount (42) for receiving a fastening portion (20) of the hand-held power tool (10) and also has a handle (60), which projects from the clamping ring (41), wherein a clamping-actuation grip (78), which can be activated manually by the operator (BE), can be used to adjust the clamping mount (42) between a clamping position (K), in which the fastening portion of the hand-held power tool (10) is clamped and in which an inner circumferential surface (43) of the clamping mount (42) lies against the fastening portion of the hand-held power tool (10)with a clamping fit, and a release position (L), in which the fastening portion of the hand-held power tools (10) is freed and in which the fastening portion of the hand-held power tool (10) can be inserted into the clamping mount (42) along an insertion axis (S), and wherein the handle device has an axial-form-fitting body (80), which is mounted in a movable manner in relation to the clamping mount (42) and has an axial-form-fitting contour (81) for engagement in a mating axial-form-fitting contour (25) of the fastening portion of the hand-held power tool. Provision is made for the handle device to have a form-fitting-actuation grip (90), which is separate from the clamping-actuation grip (78), can be activated manually by the operator (BE), independently of the clamping-actuation grip, and is intended for adjusting the axial-form-fitting body (80) between an engagement position, in which the axial-form-fitting contour (81) is in engagement with the mating axial-form-fitting contour (25), and a freeing position, in which the axial-form-fitting contour is disengaged from the mating axial-form-fitting contour.

Description

[0001] The invention relates to a handle device for detachable attachment to a hand-held power tool, in particular a drill or screwing machine, wherein the handle device comprises a clamping ring with a clamping receptacle for receiving a fastening section, in particular a machine neck, of the hand-held power tool and a handle which protrudes from the clamping ring and is provided and designed to be gripped and / or grasped by an operator, wherein the clamping receptacle is adjustable by means of a clamping actuating handle which can be manually actuated by the operator between a clamping position clamping the fastening section of the hand-held power tool, in which an inner circumferential surface of the clamping receptacle rests in a clamping fit against the fastening section of the hand-held power tool, and a release position releasing the fastening section of the hand-held power tool,in which the fastening section of the hand-held power tool can be inserted into the clamping receptacle along a plug-in axis, and wherein the handle device has an axial form-locking body movably mounted with respect to the clamping receptacle and having an axial form-locking contour for engagement in a counter-axial form-locking contour of the fastening section of the hand-held power tool.

[0002] A handle device of this type is described, for example, in DE 10 2016 207 755 A1.

[0003] A handle device according to DE 38 29 801 A1 has a sleeve with a so-called locking lug as an axial positive locking contour, which engages in a groove on the spindle neck of the hand-held power tool when the clamping receptacle is adjusted to the clamping position. The clamping receptacle enables a frictionally engaged, clamping hold of the handle device on the hand-held power tool. The axial positive locking contour serves as an additional axial positive locking or fixation with respect to the plug-in spindle. To adjust the handle device with respect to the hand-held power tool, for example with respect to the rotational position with respect to the plug-in spindle and / or to release the handle device, the clamp fit must be released by adjusting the clamping receptacle to the release position during an initial rotary actuation section of a handle. In addition, the axial positive locking must also be released using a subsequent rotary actuation section of a handle.

[0004] DE 10 2008 000 516 A1 and WO 2009 / 109247 A1 describe a hand-held power tool with a spring element which protrudes resiliently into the clamping receptacle as an axial form-locking body.

[0005] Further handle devices are known from DE 10 2006 041 069 A1 and US 2014 / 0020210 A1.

[0006] The known handle devices are uncomfortable to handle.

[0007] It is therefore the object of the present invention to propose an improved handle device.

[0008] To achieve the object, a handle device of the type mentioned at the outset is provided with a form-locking actuating handle which is separate from the clamping actuating handle and can be manually actuated by the operator independently of the clamping actuating handle for adjusting the axial form-locking body between an engagement position in which the axial form-locking contour is in engagement with the counter-axial form-locking contour and the handle device is positively locked to the fastening section of the hand-held power tool with respect to the plug-in axis, and a release position in which the axial form-locking contour is out of engagement with the counter-axial form-locking contour and the hand-held power tool and the holding device are displaceable relative to one another with respect to the plug-in axis.

[0009] The basic idea is that the clamping ring can be adjusted between the clamping position and the release position using the clamping actuation handle, and the axial form-locking contour can be actuated independently and / or separately from the clamping actuation handle or the clamping ring using the form-lock actuation handle. Thus, there are two actuation handles that can be manually actuated independently and / or separately from one another.

[0010] The axial form-locking contour is movably mounted and / or actuated independently of the clamping ring and / or the clamping receptacle. The axial form-locking contour is movably mounted relative to the clamping receptacle.

[0011] The axial form-locking contour is preferably designed as a rib. The counter-axial form-locking contour is designed, for example, as a groove, in particular as an annular groove.

[0012] On the axial form-locking contour and / or the counter-axial form-locking contour, inclined surfaces or lead-in chamfers can be provided to facilitate engagement of the axial form-locking contour and the counter-axial form-locking contour.

[0013] Advantageously, the axial form-locking contour can be adjusted between the engaged position and the release position using the form-locking actuating handle when the clamping receptacle and / or the clamping ring are in the released position. It is possible for the clamping between the handle device and the hand-held power tool to be releasable, i.e., the clamping ring can be adjusted to its release position, while the axial form-locking contour remains in engagement with the counter-axial form-locking contour of the fastening section of the hand-held power tool.

[0014] It is advantageous if, in the engaged position, the axial form-locking contour fixes the handle device to the fastening section in an axially displaceable and / or form-fitting manner with respect to the plug-in axis and / or is configured for such fixation. For example, a transverse width of the axial form-locking contour and the counter-axial form-locking contour with respect to the plug-in axis can be identical, except for a movement play that allows the axial form-locking contours to engage with one another. Thus, when the axial form-locking contour engages the counter-axial form-locking contour, the handle device cannot be displaced with respect to the fastening section along the plug-in axis.

[0015] It is advantageous that the axial form-locking contour protrudes in front of the inner circumferential surface of the clamping receptacle in the engaged position. This design of the axial form-locking contour is advantageous in any case when the clamping receptacle is in the clamping position. However, it is particularly advantageous if the axial form-locking contour protrudes in front of the inner circumferential surface of the clamping receptacle in the engaged position when the clamping receptacle is in its release position. This means that, for example, the clamping receptacle can be or become released without the axial form-lock being canceled. The axial form-locking between the handle device and the hand-held power tool can therefore be maintained even when the clamping is released.

[0016] It is advantageous that the axial form-locking contour protrudes further in front of the inner circumferential surface of the clamping receptacle in the engaged position than in the release position.

[0017] It can be provided that the axial form-locking contour does not protrude in front of the inner circumferential surface of the clamping receptacle in the release position and / or is aligned with the inner circumferential surface and / or is recessed behind the inner circumferential surface of the clamping receptacle. All of the aforementioned configurations can be realized, for example, by providing a correspondingly long travel path for the axial form-locking contour between the engaged position and the released position. This means that, for example, multiple released positions can also be provided. It is possible, for example, for the axial form-locking contour to still protrude in front of the inner circumferential surface of the clamping receptacle in the released position, but to no longer engage with the counter axial form-locking contour.By adjusting the axial form-locking contour accordingly, it can be moved even further away from the inner circumferential surface of the clamping fixture, so that the axial form-locking contour is aligned with the inner circumferential surface or is moved back behind it.

[0018] It is advantageous if the axial form-locking contour, in the engaged position, projects radially inwards in front of an annular or circular plug-in cross-section of the clamping receptacle and, in the release position, is adjusted back behind the plug-in cross-section or is aligned with the plug-in cross-section, so that the clamping receptacle, in the release position of the axial form-locking contour, provides or releases a circular plug-in cross-section for inserting the fastening section of the hand-to-hand machine tool.

[0019] The clamping holder, for example, has a cylindrical shape.

[0020] At this point, it should be noted that the plug-in cross-section of the clamping receptacle is preferably circular and / or has a diameter of exactly or approximately 43 mm. Thus, the handle device is compatible with a variety of handheld power tools whose fastening section has a clamping section whose outer circumference is approximately circular and / or has a diameter of approximately 43 mm. Even if the handheld power tool does not have a suitable counter axial form-locking contour, the axial form-locking contour of the handle device does not interfere when it assumes its release position or is adjusted to the release position.

[0021] Preferably, the clamping ring as a whole and / or in the region of the clamping receptacle is electrically non-conductive or electrically insulating. Advantageously, at least the clamping receptacle is electrically insulating or electrically non-conductive. For example, the clamping receptacle or the clamping ring as a whole consists of a plastic material, in particular an electrically non-conductive plastic material. However, a metallic clamping ring that directly provides the clamping receptacle would also be readily possible. For electrical insulation, the metallic clamping ring can be provided with an electrically insulating coating in the region of the clamping receptacle.

[0022] The axial form-locking body is preferably a separate body from the clamping ring. The axial form-locking body is preferably a separate body from the clamping ring. The axial form-locking body is preferably not integral with the clamping ring.

[0023] Preferably, the axial form-locking body is adjustable between the engagement position and the release position independently of the clamping actuating handle and / or is not motion-coupled to the clamping actuating handle and / or is in actuating engagement.

[0024] It is preferably provided that the axial form-locking body can be actuated exclusively by the form-locking actuating handle between the engagement position and the release position, in particular from the engagement position into the release position and / or from the release position into the engagement position.

[0025] It is advantageous if the axial form-locking body cannot be actuated by the clamping actuating handle. Thus, for example, the clamping actuating handle can be adjusted to a position associated with the clamping position of the clamping receptacle and / or to a position associated with the release position of the clamping receptacle, without the axial form-locking body being displaced between the engaged position and the release position during such adjustment.

[0026] Advantageously, the axial form-locking body is adjustable between the engagement position and the release position when the clamping receptacle is in the clamping position. Thus, the axial form-locking body can be adjusted to the release position even when the clamping ring is clamping the mounting section of the hand-held power tool.

[0027] It is understood that multiple axial form-locking contours can be provided, i.e., at least two axial form-locking contours. These axial form-locking contours can be provided on one and the same axial form-locking body. However, it is also possible for multiple axial form-locking bodies to be provided.

[0028] A single positive locking actuating handle can be provided to actuate the at least one axial positive locking body. The positive locking actuating handle is connected, for example, to one or more axial positive locking bodies via a gear mechanism, a driver arrangement, or the like. However, it is also possible for multiple positive locking actuating handles to be provided for one or more axial positive locking bodies. Thus, for example, an operator can actuate one and the same axial positive locking body or multiple axial positive locking bodies simultaneously by operating different positive locking actuating handles, for example, two different positive locking actuating handles.

[0029] It is advantageous if the axial form-locking body and the form-locking actuating handle are firmly connected to one another or are formed in one piece. Alternatively, it is also possible for a driving device and / or a gear or the like to be arranged between the at least one form-locking actuating handle and the at least one axial form-locking body. The driving device can be or comprise a gear, for example. The driving device can also comprise a free passage between the axial form-locking body and the form-locking actuating handle.

[0030] While it is possible for the axial form-locking body to be manually actuated or to be actuated from the engaged position to the release position and vice versa, it is preferred for the axial form-locking body to be biased into the engaged position by a spring arrangement. Thus, the operator actuates the axial form-locking body against the force of the spring arrangement toward the release position, while the spring arrangement acts in the opposite direction, i.e., toward the engaged position. For example, the axial form-locking body is designed as a locking element biased toward the engaged position.

[0031] The spring arrangement comprises, for example, a helical spring and / or a metallic spring. It is preferred if the spring arrangement is penetrated or penetrated by a tensioning anchor for adjusting the clamping ring between the release position and the clamping position.

[0032] Advantageously, the spring arrangement comprises at least one spring separate from the axial form-locking body.

[0033] The spring arrangement is preferably not formed by a resilient linkage of the axial form-locking body and / or by a spring separate from the axial form-locking body. Therefore, the axial form-locking body itself does not have a resilient property, for example, by being resiliently movably linked to another body, such as the clamping ring.

[0034] Of course, it is possible, however, that the spring arrangement is formed by a spring-elastic linkage of the axial form-locking body, for example to a base body of the clamping ring, or comprises such a spring-elastic linkage.

[0035] It is preferred if the axial form-locking body is mounted so as to be linearly displaceable relative to the clamping ring along an adjustment axis. The spring or spring arrangement acts on the axial form-locking body in particular in the direction of the adjustment axis. It is possible for the axial form-locking body to be mounted so as to be exclusively linearly displaceable relative to the clamping ring along one or more adjustment axes. Furthermore, it is possible for the axial form-locking body to be non-rotatable or non-pivotable relative to the clamping ring. Advantageously, the axial form-locking body is mounted so as to be exclusively linearly displaceable with respect to the clamping ring, but not pivotable.

[0036] Alternatively, a pivoting bearing or a sliding-pivoting bearing or a bearing along a curved path of the axial form-locking body between the engaged position and the release position would also be possible. For example, the axial form-locking body is then pivotably mounted using a pivot bearing or using a slotted guide along a curved path and / or sliding-pivoting between the release position and the engaged position. The pivot bearing can, for example, have an axle member connected to the axial form-locking body, which is pivotably mounted on a bearing mount about a pivot axis.

[0037] To provide the displaceable mounting of the axial form-locking body, a guide device or a linear bearing is preferably provided. A guide device for linearly guiding the axial form-locking body along the adjustment axis is preferably provided and / or arranged on the handle and / or the clamping ring. For example, guide surfaces of the guide device can be arranged both on the clamping ring and on the handle, in particular on a support body of the handle, on which the axial form-locking body is mounted linearly with respect to the adjustment axis.

[0038] The adjusting axis preferably runs tangentially or at a radial distance tangentially to the inner circumferential surface of the clamping holder.

[0039] It is advantageous if the axial form-locking contour has an inclined surface or wedge surface for contact and / or wedging with the counter-axial form-locking contour, for example its base. The base is, for example, a groove base of a counter-axial form-locking contour designed as a groove. It is particularly advantageous if the axial form-locking body is designed as a wedge body or has a wedge body that is designed and / or intended for wedging with the counter-axial form-locking contour of the hand-held power tool. The inclined surface or wedge surface is preferably shallowly inclined with respect to the adjustment axis. For example, the inclined surface or wedge surface has an inclination of less than 30°, in particular less than 25°, preferably even less than 20° or less than 15°. The inclined surface or wedge surface and the adjustment axis are therefore at an angle to one another.It should be noted here that the inclined or wedge surface can also have an arcuate shape or arcuate sections. Therefore, the inclined or wedge surface does not have to be a flat or planar surface.

[0040] Due to the oblique inclination of the wedge surface or inclined surface, for example, an actuating force acting along the actuating axis is amplified relative to a contact force with which the axial form-locking body acts on the counter-axial form-locking contour. A spring force of the spring arrangement acting on the axial form-locking body, for example, generates a contact force on the counter-axial form-locking contour, for example its base, which is amplified, in particular amplified several times, by the aforementioned small angle between the inclined surface or wedge surface on the one hand and the actuating axis on the other. The tangential force introduction of the axial form-locking body is thus, in a sense, amplified.

[0041] A preferred concept provides that the handle has a longitudinal central axis to which the adjustment axis is parallel or coaxial.

[0042] An advantageous measure provides that the axial form-locking contour is mounted so as to be tangentially displaceable with respect to the inner circumferential surface of the clamping receptacle and / or with respect to a center of the clamping receptacle.

[0043] The clamping actuating handle and the form-locking actuating handle are preferably mounted so as to be movable with respect to the clamping ring with different degrees of freedom of movement, i.e., for example, the clamping actuating handle is rotatable with respect to the clamping ring, and the form-locking actuating handle is displaceable with respect to the clamping ring. One embodiment provides that the clamping actuating handle is rotatably mounted with respect to the clamping ring for adjusting the clamping receptacle between the clamping position and the release position, and the form-locking actuating handle is displaceably mounted with respect to the clamping ring for adjusting the axial form-locking body between the engaged position and the release position. In principle, however, it would also be conceivable for the form-locking actuating handle to be rotatably mounted with respect to the clamping ring in order to adjust the axial form-locking contour between the engaged position and the release position.It is possible that a rotary movement of the form-locking actuating handle is redirected into a linear movement of the form-locking contour by means of a gear.

[0044] The axial form-locking body and the clamping actuating device are advantageously arranged coaxially, in particular with respect to a tensioning axis explained below and / or with respect to a longitudinal axis of a tensioning anchor also explained below.

[0045] The clamping actuating handle is advantageously formed by a rod-shaped handle body of the handle that can be gripped by an operator with the palm of their hand, or it has such a handle body. The handle body thus forms a component, in particular an essential component or main component, of the handle, which protrudes from the clamping ring and can be gripped and / or grasped by the operator for holding and guiding the hand-held power tool.

[0046] By exchanging the handle body, for example, or using different handle bodies, the handle can have different geometric shapes, for example, different diameters and / or different lengths. This allows for easy ergonomic adjustments.

[0047] It is advantageous if the positive locking actuation handle is arranged between the clamping actuation handle and the clamping ring. This allows the operator to actuate the positive locking actuation handle by grasping the clamping actuation handle or the handle body, for example, with the thumb and / or index finger.

[0048] An advantageous concept provides that a distance is provided between a gripping section of the clamping actuating handle, for example of the aforementioned handle body, intended for grasping the clamping actuating handle, and a gripping surface of the positive-lock actuating handle intended for manual actuation, which distance approximately corresponds to the distance between a front thumb joint of an adult operator's hand and an index finger of the same hand when the thumb is spread out from the hand. The operator can thus grasp the gripping section of the clamping actuating handle and simultaneously actuate the positive-lock actuating handle with the front thumb joint. The operator can, for example, axially displace the positive-lock actuating handle towards the gripping section of the clamping actuating handle, in particular to actuate the axial positive-lock body in the direction of the release position.

[0049] On a side facing the form-locking actuating handle, the handle body of the clamping actuating handle preferably has a support projection, in particular a flange projection, on which the hand of an operator can rest, in particular for actuating the form-locking actuating handle.

[0050] It is advantageous if the positive-locking actuating handle is designed as a ring body or sleeve body. In particular, such a sleeve body has a gripping surface intended for operation by the operator, which slopes upwards towards the side facing away from the clamping ring and / or has a gripping recess.

[0051] The clamping actuating handle is preferably supported on the clamping ring independently of the form-locking actuating handle.

[0052] A clamping anchor is advantageous for actuating the clamping ring. For example, the clamping ring can be adjusted between the clamping position and the release position by means of a clamping anchor. The clamping anchor can be actuated linearly along a clamping axis by a handle body of the clamping actuating handle, for example the aforementioned handle body. The handle body is preferably mounted on a base body of the handle so as to be rotatable about the clamping axis and forms the clamping actuating body. On the clamping anchor, for example, a threaded section is provided which is screwed into a screw receptacle which is connected to the handle body in a rotationally fixed manner. By rotating the handle body, the clamping anchor can be adjusted linearly relative to the screw receptacle in order to adjust the clamping ring between the clamping position and the release position.

[0053] The clamping anchor, like the handle body mentioned above, is preferably replaceable.

[0054] It is possible, for example, to design the handle length differently and / or to create larger or smaller distances between the clamping ring and the clamping actuation handle, in particular the handle body, by using clamping anchors of different lengths. For example, spacer elements of different lengths, in particular the support body mentioned in the detailed description, can be arranged between the clamping actuation handle and the form-locking actuation handle, particularly those through which the clamping anchor passes.

[0055] The tension anchor is, for example, a rod-shaped or bolt-shaped component. The tension anchor can, for example, clamp opposing ring ends of the clamping ring toward each other for adjustment toward the clamped position and release them for movement away from each other to release the clamping, i.e., toward the release position, or actively adjust the ring ends away from each other toward the release position.

[0056] The clamping anchor extends, for example, between the clamping ring and the clamping actuating handle, in particular its handle body.

[0057] It is advantageous if the axial form-locking body is penetrated by the tensioning anchor and / or guided by the tensioning anchor. The tensioning anchor can thus simultaneously form a guide element or the aforementioned guide device for the axial form-locking body.

[0058] A preferred embodiment provides that the handle device has at least one rotary form-locking contour for engaging a counter rotary form-locking contour on the fastening section of the hand-held power tool, wherein the counter rotary form-locking contour and rotary form-locking contour, when engaged with one another, fix the handle device in a rotationally fixed manner relative to the fastening section of the hand-held power tool with respect to the plug-in axis. The rotary form-locking contour and the counter rotary form-locking contour can be engaged and disengaged, for example, by a relative movement of the fastening section and handle device along the plug-in axis. The rotary form-locking contour and the counter rotary form-locking contour are designed, for example, as rib structures, tooth structures, or the like, or have such structures.For example, a circular toothing can be provided as a rotational form-locking contour and as a counter-rotational form-locking contour. In particular, the rotational form-locking contours are designed such that the handle device can be fixed in a rotationally fixed manner with respect to the plug-in shaft in at least two, preferably several, angular positions relative to the fastening section.

[0059] For example, the rotary form-locking contour is arranged on a front side of the clamping ring through which the plug-in spindle passes. It is particularly advantageous if rotary form-locking contours are provided on opposite end sides of the clamping ring. Thus, the handle device can be attached to the fastening section in opposite mounting positions, with the rotary form-locking contours engaging with each other. In the two mounting positions, the handle protrudes from the fastening section of the hand-held power tool on different, opposite sides.

[0060] It is advantageous if, in the engaged position, the axial form-locking contour fixes the handle device to the fastening section in an axially displaceable and / or positively locking manner with respect to the plug-in axis such that the rotary form-locking contour is held in engagement with the counter-rotary form-locking contour, and / or is designed for such a fixation. For example, a distance between the axial form-locking contour and the rotary form-locking contour, or the distances to the rotary form-locking contours on the opposing end faces of the clamping ring, is dimensioned such that, in the engaged position, the axial form-locking contour fixes the handle device to the fastening section in an axially displaceable and / or positively locking manner with respect to the plug-in axis such that the rotary form-locking contour is held in engagement with the counter-rotary form-locking contour when the handle device is mounted on the fastening section.

[0061] An advantageous concept provides that the axial form-locking contour, in its engaged position engaging the counter-axial form-locking contour or in an intermediate position between the engaged position and the released position, holds the handle device axially displaceable relative to the plug-in axis by a predetermined adjustment path, but captively, on the fastening section. For example, it is possible for the axial form-locking contour to hold the handle device displaceably relative to the plug-in axis on the fastening section in the engaged position and to allow removal of the handle device from the fastening section in the released position, while in the intermediate position, a part or a partial section of the axial form-locking contour engages the counter-axial form-locking contour, but allows axial movement of the handle device relative to the fastening section of the hand-held power tool relative to the plug-in axis.

[0062] For example, a transverse width of the counter axial form-locking contour can be dimensioned with respect to the plug-in axis and / or provide the adjustment path such that the axial form-locking contour engages with the counter axial form-locking contour, but is movably received therein along the plug-in axis in the engaged position or the aforementioned intermediate position. It is also possible for such axial mobility or the adjustment path to be realized, for example, by an oblique contour of the axial form-locking contour that tapers obliquely to a free end region or front region of the axial form-locking contour, and / or by a retaining projection of the axial form-locking contour that protrudes in front of a base body of the axial form-locking contour, or the like.

[0063] Preferably, the axial adjustment path in the engaged position or, in particular, in the aforementioned intermediate position is dimensioned such that the rotary form-locking contour of the handle device and the counter-rotary form-locking contour of the fastening section can be brought into and out of engagement with one another. Thus, the axial form-locking contour engages the counter-axial form-locking contour, so that the handle device is held captively on the fastening section. Nevertheless, the handle device is movable away from the counter-rotary form-locking contour along the plug-in axis, so that it can rotate about the plug-in axis.

[0064] The hand-held power tool is preferably a drill or screw driver. The hand-held power tool advantageously forms part of a system comprising the hand-held power tool and the handle device. A working tool attachable to the hand-held power tool is preferably a drill or screw driver.

[0065] An embodiment of the invention is explained below with reference to the drawings. They show: Figure 1a system with a hand-held power tool and a handle device, Figure 2the system according to Figure 1 , wherein the handle device is mounted on the hand-held power tool, Figure 3 shows a front part of the handle device according to the preceding figures in a perspective oblique view, Figure 4 shows an alternative axial form-locking body for the handle device according to Figure 3, Figure 5 the handle device according to the preceding figures as well as a machine neck of the hand-held power tool, Figure 6 an exploded view of the handle device according to the preceding figures, Figure 7 a section through the handle device according to Figure 5 , approximately along a section line AA in Figure 5 in an engaged position of its axial form-locking body, Figure 8 a partial view of the handle device according to Figure 7 , wherein the axial form-locking body is adjusted to a release position, Figure 9 a sectional view of the handle device according to Figure 7 , approximately along a section line BB in Figure 7 in cooperation with a fastening section of the hand-held machine tool, which has a modified counter-axial form-locking contour.

[0066] A system 5 comprises a hand-held machine tool 10, for example a screwing device, and a handle device 30.

[0067] A machine housing 11 of the hand-held power tool 10 has a drive section 12, from which a handle section 13 protrudes. An energy storage device 14A, for example a battery pack, for supplying electrical energy to the hand-held power tool 10 can be detachably arranged on the free base section 14 of the handle section 13, facing away from the drive section 12. As an alternative to the mobile energy storage device 14A or in addition to it, the hand-held power tool 10 can also have a mains connection, in particular a mains cable, for connection to an electrical power supply network.

[0068] A drive motor 15, for example, an electric or pneumatic drive motor, is arranged in the drive section 12. It has a tool holder 17 for arranging a working tool 19, for example, a screwing tool or drilling tool, either directly or via a gear 16. The drive motor 12 drives the tool holder 17, for example, about a rotational axis DA.

[0069] The drive motor 15 can be switched on and off using a switch 18, and in particular its speed can be changed.

[0070] The tool holder 17 is provided on a fastening section 20, for example a so-called machine neck, of the hand-held power tool 10.

[0071] Objects can be attached to the fastening section 20 along a plug-in axis S, for example drill stands and in particular the handle device 40 explained below.

[0072] The fastening section 20 has a receiving section 21, which extends between a free end face 22 of the fastening section 20, on which the tool holder 17 is arranged, and an end face 23 of the machine housing 11, in particular of the drive section 12. The receiving section 21 has a cylindrical shape with respect to the plug-in axis S. The receiving section 21 has a holding surface 24, which is designed as a cylindrical surface with respect to the plug-in axis S or is a cylindrical surface extending around the plug-in axis S. The holding surface 24 is suitable as a clamping surface. The end face 23 is angled, for example, at a right angle, to the holding surface 24.

[0073] For the positive fastening of objects to the fastening section 21 parallel to the plug-in axis S, a counter-axial form-locking contour 22 is provided on the holding surface 24. The counter-axial form-locking contour 25 is provided on the receiving section 21 between the end faces 22 and 23. The counter-axial form-locking contour 25 is designed, for example, as a groove 26 having a base 27 from which side walls or support surfaces 28 extend away to the holding surface 24, for example at a right angle.

[0074] Preferably, the counter-axial form-locking contour 25 extends around the entire outer circumference of the receiving section 21 with respect to the plug-in axis S. However, it would also be possible for a counter-axial form-locking contour to extend only over a partial circumference of the receiving section 21. Advantageously, several counter-axial form-locking contours can also be provided, which are arranged, for example, next to one another with respect to the plug-in axis S and / or next to one another in the circumferential direction with respect to the plug-in axis S on the receiving section 21. Counter-axial form-locking contours arranged next to one another with respect to the plug-in axis S can, for example, be designed in the manner of a rib structure comprising two or more receiving grooves.Counter-axial form-locking contours arranged next to one another on the receiving section 21 in the circumferential direction with respect to the plug-in axis S can, for example, each extend around an angular section around the plug-in axis S, for example, be designed as partially annular receiving grooves.

[0075] Rotary form-locking contours 30 serve to positively hold objects on the fastening section 20 in the circumferential direction or direction of rotation with respect to the plug-in axis S. The rotary form-locking contours 30 protrude, for example, in front of the end face 23 towards the holding surface 24 and / or radially outwards in front of the holding surface 24. The rotary form-locking contours 30 have, for example, a plurality of form-locking projections 31 protruding parallel to the plug-in axis S in front of the end face 23. The rotary form-locking contours 30 have the same radial distances 32 with respect to the plug-in axis S, so that objects to be fastened to the fastening section 20 can be fastened in a plurality of angular positions whose angular distances correspond to the distances 32.

[0076] The fastening section 20 is provided on a fastening body 35 of the hand-held power tool 10, which forms part of the machine housing 11 or is connected thereto. The fastening body 35 comprises a peripheral wall 36, the radial outer circumference of which provides the holding surface 24, and an end wall 37 projecting in a flange-like manner in front of the peripheral wall 36, on which the end face 23 is provided.

[0077] An attachment 17A, for example a drill chuck, an angle attachment or the like, can also be arranged on the tool holder 17. On the attachment 17A, according to Figure 2For example, a drill chuck, a working tool 19A, such as a drill, can be detachably attached. Especially for drilling operations, it is essential that the operator can securely grip the hand-held power tool in order to withstand the forces occurring during drilling. For this purpose, the hand-held power tool can be grasped not only by its machine housing 11, for example, by the handle section 13 and possibly also by the drive section 12, but also by means of the handle device 40, which can be detachably connected to the hand-held power tool 10.

[0078] The handle device 40 has a clamping ring 41 for attachment to the handheld power tool 10. The clamping ring 41 comprises a clamping receptacle 42 into which the fastening section 20 of the handheld power tool 10 can be inserted along the insertion axis S. The clamping receptacle 42 has a cylindrical inner circumferential surface 43, in particular a clamping surface, which is provided and configured for clamping to the holding surface 24 of the handheld power tool 10. When the clamping receptacle 42 rests in a clamping fit against the holding surface 24, the handle device 40 is held frictionally on the handheld power tool 10.

[0079] The clamping ring 41 has an annular body 44 which delimits the clamping receptacle 42. The annular body 44 has a circumferential slot 45A, by means of which a plug-in cross-section of the clamping receptacle 42 can be adjusted with respect to the plug-in axis S. The slot 45A runs radially with respect to the plug-in axis S. Ring ends 45 and 46 of the annular body 44 lie opposite one another in the region of the slot 45A. The plug-in cross-section of the clamping receptacle 42 can be reduced with respect to the plug-in axis S by actuating the ring ends 45 and 46 of the clamping ring 41 along a clamping axis SP towards one another in order to clamp the fastening section 20 of the hand-held power tool in a clamping position K which can be produced thereby. The clamping position K is in Figure 7 shown in dashed lines. When the ring ends 45 and 46 are moved away from each other, the plug-in cross-section of the clamping receptacle 42 is enlarged and adjusted to a release position L, which is Figure 7is shown in solid lines and in which the fastening section 20 is displaceable with respect to the plug-in axis S in the clamping receptacle 42.

[0080] Rotary form-locking contours 50 provided on opposite end faces 47 and 48 of the clamping ring 41 for engagement with the rotary form-locking contours 30 of the hand-held power tool 10 ensure that the clamping ring 41 is held in a torsion-proof manner on the fastening section 20 with respect to the plug-in axis S. By providing rotary form-locking contours 50 on each end face 47 and 48 of the clamping ring 41, the rotary form-locking contours 30 of the fastening section 20 can be brought into engagement with rotary form-locking contours 50 of the handle device 40 in each plug-in direction with respect to the plug-in axis S.

[0081] The rotary form-locking contours 50 comprise form-locking receptacles 51 for engaging the form-locking projections 31, which have angular distances 52 with respect to the plug-in axis S that correspond to the distances 32. It is advantageous if the form-locking receptacles 51 in the region of the ring ends 45 and 46 of the clamping ring 41 have an angular width with respect to the plug-in axis S in order to enable movement of the clamping ring 41 during adjustment from the release position L to the clamping position K with respect to the rotary form-locking contours 30 in the region of the ring ends 45 and 46.

[0082] A handle 60 protrudes from the clamping ring 41. The handle 60 has a support body 61, which is supported on the clamping ring 41. The support body 61 comprises a sleeve body 62, in front of which a support projection 63 protrudes. The support projection 63 protrudes towards a receptacle 53 on the ring end 46 of the ring body 44. A support contour 64 of the support body 61 is supported, with respect to the clamping axis SP, on a support contour 54 of the clamping ring 41. The support contour 54 is formed, for example, on the end face of a peripheral wall 55 of the receptacle 53, but could easily also comprise a step inside the receptacle 53.

[0083] A tension anchor 66 is used to adjust the clamping ring 41 between the clamping position K and the release position L. This tension anchor 66 penetrates the clamping ring 41 in the area of ​​the ring ends 45 and 46 in order to move the ring ends 45 and 46 towards each other to adjust the clamping receptacle into the clamping position K or to allow or cause a movement of the ring ends 45 and 46 away from each other for adjustment in the direction of the release position L. The tension anchor 66 has a head 67 which is received in a receptacle 49 on the ring end 45 in a rotationally secure manner and is arranged on a bolt section 68. The head 67 and the receptacle 49 have, for example, complementary, in particular polygonal, rotation-locking contours.

[0084] The bolt portion 68 passes through openings 56 and 57 at the ring ends 45 and 46 as well as the support body 61 and engages with a free ring end in an insertion opening 77 of a handle body 70 of the handle 60. A thread is provided at the free end of the bolt portion 68, which is screwed into a nut 69, which is received in the handle body 70 in a rotationally fixed manner.

[0085] Furthermore, it is advantageous if a stop 69A, for example a torsionally fixed nut, a flange projection, or the like, is arranged at the free end of the bolt portion 68, which limits the travel of the nut 69 along the bolt portion 68 so that the nut 69 cannot be lost and / or the bolt portion 68 cannot be completely unscrewed from the nut 69. Thus, the stop 69A forms a type of loss prevention device for the nut 69.

[0086] The handle 60 and in particular the handle body 70 have a longitudinal shape and extend along a longitudinal central axis LM of the handle 60.

[0087] The handle body 70 is rotatable relative to the support body 61 and relative to the ring body about a rotation axis D, which is preferably coaxial with the clamping axis SP and / or coaxial with the longitudinal center axis LM, whereby the nut 69 is screwed along the bolt section 68 and thus the head 67 of the clamping anchor 66, which forms an abutment body, is moved towards or away from the handle body 70. As a result, the ring end 45 is actuated towards the ring end 46 into the clamping position K or is actuated or released to move away from the ring end 46 in the direction of the release position. A hand H of an operator BE can, for example, grip the handle section 71 with several fingers F and rotate the handle body 70 and thus the nut 69 about the rotation axis D. The handle body 70 forms a clamping actuating handle 78 for adjusting the clamping receptacle 42 between the release position L and the clamping position K.

[0088] Of course, instead of the nut 69, a thread for screwing in the bolt portion 68 can also be provided directly or integrally on the handle body 70. Furthermore, the handle body 70 can also have a screw projection that is screwed into a screw receptacle on the ring end 45 of the ring body 44 in order to effect a clamping actuation with respect to the clamping axis SP.

[0089] The handle body 70 has a gripping portion 71 for gripping by an operator. The gripping portion 71 extends between support projections 72 and 73, which are located at the free end region of the handle 60 and face the support body 61, respectively. The support projections 72 and 73 are designed as flange projections. The handle body 70 further has a retaining receptacle 74 for the nut 69.

[0090] An elastic layer 75 is preferably provided in the region of the handle portion 71 and / or the support projection 72.

[0091] A reinforcing body 76 is advantageously provided on the support projection 73, with which the handle body 70 is supported on the support body 61.

[0092] For axially positive locking or fastening the handle device 40 with respect to the plug-in axis S on the fastening section 20 of the hand-held power tool 10, an axial positive locking body 80 is used, which has an axial positive locking contour 81 for engagement with the counter-axial positive locking contour 25 of the fastening section 20. The axial positive locking contour 81 has a front surface 82 which, when the axial positive locking contour 81 engages with the counter-axial positive locking contour 25, lies opposite the bottom 27 of the groove 26 or is supported on the bottom 27. Support surfaces 83, e.g., side flanks or side walls, extend at an angle, for example at a right angle, from the front surface 82 and are provided for positive support on the support surfaces 28 of the groove 26.

[0093] The axial form-locking body 80 is mounted displaceably along an adjusting axis SA between an engagement position E, in which the axial form-locking contour 81 is in engagement with the counter-axial form-locking contour 25 or groove 26, and a release position L, in which the axial form-locking body 80 or the axial form-locking contour 81 is out of engagement with the counter-axial form-locking contour 25, by means of a guide device 87.

[0094] The front surface 82 is inclined obliquely with respect to the adjusting axis SA and forms an inclined surface 82B or has an inclined surface as an insertion bevel 82B. The insertion bevel 82B facilitates engagement of the axial form-locking contour 81 with the counter-axial form-locking contour 25.

[0095] For example, the tensioning anchor 87, which penetrates a through-opening 86 of the axial form-locking body 80, can serve as a component of the guide device 87. The axial form-locking body 80 is mounted displaceably along the tensioning anchor 87 with respect to the adjusting axis SA.

[0096] Furthermore, the receptacle 53 on the clamping ring 41 is designed to receive and / or guide the axial form-locking body 80. The axial form-locking body 80 is received in the receptacle 53 and / or guided along the adjusting axis SA.

[0097] A substantially cylindrical portion 88 of the axial form-locking body 80 is received, for example, in a substantially cylindrical guide receptacle 58 at the ring end 46.

[0098] In the release position F, the axial form-locking body 80 is located exclusively in the guide receptacle 58 and / or is retracted into the guide receptacle 58. In the engagement position E, the axial form-locking body 80 projects in front of the guide receptacle 58 and plunges into a support receptacle 59 on the ring end 47, which is opposite the guide receptacle 58 and is aligned with it. In principle, however, it would also be possible for the axial form-locking body 80, with a corresponding length, to at least partially engage in the support receptacle 59 even in the release position F. The support receptacle 59 and the guide receptacle 58 preferably have the same cross-sections transverse to the adjusting axis SA.Thus, in the engagement position E, the axial form-locking body 80 is supported at both ring ends 46 and 47 transversely to the plug-in axis S and can thus optimally support the handle device 40 on the fastening section 20 of the hand-held power tool 10 with respect to forces acting axially in the direction of the plug-in axis S.

[0099] Furthermore, the axial form-locking body 80 is preferably guided on the handle device 40 in a rotationally secure manner with respect to the adjustment axis SA, for example with respect to the clamping ring 41. For this purpose, the axial form-locking body 80 has, for example, anti-rotation contours 89, in particular guide projections projecting radially outward with respect to the plug-in axis S, which engage with counter-rotation-preventing contours 59A, for example grooves, slots, or other similar guide receptacles. The anti-rotation contours 89 and the counter-rotation-preventing contours 59A extend parallel to the adjustment axis SA and preferably have a longitudinal shape with respect to the latter.

[0100] A form-locking actuating handle 90 is used to actuate the axial form-locking body 80. Although the form-locking actuating handle 90 could in principle be coupled in movement to the axial form-locking body 80, for example by means of interlocking driving contours, it is preferably integral with the axial form-locking body 80.

[0101] The form-locking actuating handle 90 comprises a gripping piece 91 configured as a sleeve body 91A, which is arranged at the end region of the section 88 of the axial form-locking body 80 facing away from the axial form-locking contour 81. The gripping piece 91 has a gripping surface 92, which preferably has an inclined shape and / or a gripping recess. The gripping surface 92 rises from the clamping ring 41 toward the handle body 70. Thus, the gripping surface 92 can be comfortably grasped by a thumb DA of the operator BE and actuated in the direction of the handle body 60 along the actuating axis SA when the operator BE grasps the handle body 60 with his other fingers F.

[0102] On its side facing the clamping ring 41, the positive-locking actuating handle 90 has a receptacle 93 into which the peripheral wall 55, which delimits the receptacle 53 on the clamping ring 41, engages. These interlocking components can also form part of the guide device 87. In any case, the peripheral wall 55 engages the receptacle 93 of the handle 91 in the engaged position E. It is advantageous if the peripheral wall 55 also at least partially engages the receptacle 93 in the release position F.

[0103] The axial form-locking body 80 and thus the axial form-locking contour 81 are spring-loaded into the engaged position E by a spring arrangement 95. The spring arrangement 95 comprises a spring 96, for example a helical spring. The spring arrangement 95 is supported on the one hand in a receptacle 94 on the axial form-locking body 80, for example on the longitudinal end region of the section 88 facing the handle body 70, and on the other hand on the support body 61, for example on its support projection 63, in particular the end face of the support projection 63. The axial form-locking body can therefore be actuated from the engaged position E into the release position F against the force of the spring arrangement 85. The release position F is assigned a stop 65 that is stationary with respect to the handle 60. The stop 65 is formed, for example, by the support contour 64 of the support body 61 or is provided by this, against which a stop 97 of the handle 91 strikes in the release position F.

[0104] In order for the axial form-locking contour 81 to be easily brought into engagement with the groove 26, an inclined surface 84 rising towards the free end 85 of the axial form-locking body 80 is provided on the front surface 82, such that the free end 85 is at a greater distance from the clamping receptacle 42 or inner circumferential surface 43 than the area of ​​the front surface 82 facing the section 88 of the axial form-locking body 80.

[0105] Advantageously, a rounded area 82A is provided on the front surface 82, the rounding of which corresponds approximately to the rounding of the inner circumferential surface 43, so that the area 82A can bear positively against the bottom 27 of the groove 26 in the engagement position E.

[0106] Furthermore, an inclined surface or wedge surface 82B is formed on the front surface 82 and can be brought into engagement with the counter-axial form-locking contour 25 in the sense of wedging therewith. The wedge surface 82B is inclined at an angle α to the actuating axis SP. The angle α is a shallow angle of, for example, approximately 5° to 25°, in the present case approximately 10° to 15°. By means of the wedge surface 82B, an actuating force Fs acting along the actuating axis SP, for example generated by the spring arrangement 95, is deflected into a contact force Fa which acts on the base 27 of the counter-axial form-locking contour 25. The shallow inclination of the wedge surface 82B, and therefore the small angle α, brings about a force amplification, i.e. the contact force Fa is greater, in particular several times greater, than the actuating force Fs.

[0107] Advantageously, the handle device 40 has a depth stop element 99 for adjusting the penetration depth of the working tool 19 or 19A into a workpiece. The depth stop element 99 is, for example, a rod that is slidably received in a receptacle 98 of the handle device 40 parallel to the plug-in axis S. The receptacle 98 is provided on the clamping ring 41, in particular on the ring end 45.

[0108] If the handle device 40 is to be removed from the hand-held power tool 10, it is provided that the clamping receptacle 42 is first adjusted from the clamping position K to the release position L. This requires a slight rotation of the handle body 70, i.e., the clamping actuating handle 78, about the rotation axis D. The operator then releases the positive locking by adjusting the axial positive locking body 80 from the engaged position E to the release position F by adjusting the positive locking actuating handle 90 in the direction of the handle body 70, for example, by moving a front thumb joint DAG of his thumb DA. A short adjustment path is sufficient for this. The operator can then, for example, completely remove the handle device 40 from the fastening section 20 of the hand-held power tool 10, i.e., pull it off along the plug-in axis S, so to speak.

[0109] It is also possible for the operator to adjust the handle device 40 only partially along the plug-in axis S, so that the rotary form-locking contours 30, 50 are disengaged and the handle device 40 is rotatable about the plug-in axis S with respect to the hand-held power tool 10. Once the appropriate angular position of the handle device 40 relative to the machine housing 11 has been set, the handle device 40 is adjusted again in the direction of the plug-in axis S toward the machine housing 11, whereby the rotary form-locking contours 30, 50 engage with one another. Advantageously, the axial form-locking body 80 also engages in the counter-axial form-locking contour 25 due to the force applied to the spring arrangement 95.

[0110] One in Figure 9The concept shown provides that the axial form-locking body 80 is only intended as an additional safety measure for clamping the handle device 40 to the hand-held power tool 10, which only prevents the handle device 40 from being completely removed from the hand-held power tool 10. In Figure 9the elements described so far are structurally identical, in particular the handle device 40 is not modified, while an alternative fastening body 35A or an alternative hand-held power tool 10A equipped therewith is provided. Instead of the counter-axial form-locking contour 25, a counter-axial form-locking contour 25A which is wider with respect to the plug-in axis S and has a wider groove 26A is provided, the support surfaces 28A of which have a greater distance with respect to the plug-in axis S than the support surfaces 28. As a result, the handle device 40 can be displaced along the plug-in axis S on the holding surface 24 after the clamping of the clamping receptacle 42 has been released, i.e. after it has been adjusted to the release position L, but only until the axial form-locking body 80 abuts positively against one of the support surfaces 28A.The width of the groove 26A or counter-axial form-locking contour 25A with respect to the plug-in axis S is dimensioned such that the rotary form-locking contours 30, 50 can be disengaged and engaged by an axial displacement of the handle device 40 and the hand-held power tool 10A along the plug-in axis S relative to one another by an adjustment path VS, but the handle device 40 can only be removed from the hand-held power tool 10A when the axial form-locking body 80 is adjusted to the release position F, in which it no longer engages the counter-axial form-locking contour 25A.It is understood that, alternatively or in addition to this solution, a width of the axial form-locking contour 81 can also be changed with respect to the plug-in axis S, for example, so that the axial form-locking body 80, for example, also has a play of movement with respect to the plug-in axis S in the groove 26 or counter-axial form-locking contour 25 in the engagement position E, which makes it possible to engage or disengage the rotary form-locking contours 30, 50.

[0111] In a Figure 4In the axial form-locking body 80A shown, both of the solutions explained so far are connected to one another, namely, on the one hand, that the axial form-locking body 80A in the engagement position E rests at least with that support surface 83 which has the greater distance to the counter-rotational form-locking contours 30 in the respective assembly position of the handle device 40 on the hand-held power tool 10, on the support surface 28 of the groove 26 which is furthest away from the counter-rotational form-locking contours 30 and thus, even when the clamping ring 41 is adjusted to the release position L, realizes a form-fitting hold of the handle device 40 on the hand-held power tool 10 with respect to the plug-in axis S both in the radial and axial direction of the plug-in axis S.Furthermore, the axial form-locking body 80A can also be adjusted into the release position F using the form-locking actuating handle 90, in which it no longer engages with the counter-axial form-locking contour 25, so that the handle device 40 can be completely removed from the hand-held power tool.

[0112] Furthermore, an intermediate position Z of the axial form-locking body 80 is adjustable between the engagement position E and the release position F, in which intermediate position a retaining contour 81A, which protrudes, for example, in front of the inclined surface 84, is still in engagement with the counter axial form-locking contour 25. The retaining contour 81A is designed, for example, as a retaining projection, in particular as a rib, an inclined surface or the like, which protrudes in front of the front surface 82, but is spaced from the support surfaces 83 with respect to the plug-in axis.When the axial form-locking body 80A is adjusted to the intermediate position Z, the handle device 40 has a movement play with respect to the plug-in axis S such that the support surfaces 83A of the holding projection or the holding contour 81A are displaceable between the support surfaces 28 of the groove 26 with respect to the plug-in axis S, so that the rotary form-locking contours 30 and 50 can be brought into engagement and disengaged, but the handle device 40 cannot be removed from the fastening section 20 of the hand-held power tool 10.

Claims

1. A handle device (40) for releasable fastening on a hand-held power tool (10), in particular a power drill or a power screwdriver, wherein the handle device (40) has a clamping ring (41) with a clamping mount (42) for receiving a fastening portion (20), in particular a machine neck, of the hand-held power tool (10) and a handle (60) which projects from the clamping ring (41) and which is provided and designed for gripping and / or grasping by an operator (BE), wherein, using a clamping-actuation grip (78) which can be manually actuated by the operator (BE), the clamping mount (42) can be adjusted between a clamping position (K) clamping the fastening portion (20) of the hand-held power tool (10), in which clamping position an inner circumferential surface (43) of the clamping mount (42) lies in the clamping seat against the fastening portion (20) of the hand-held power tool (10), and a release position (L) which releases the fastening portion (20) of the hand-held power tool (10), in which release position the fastening portion (20) of the hand-held power tool (10) can be inserted into the clamping mount (42) along an insertion axis (S), and wherein the handle device (40) has an axial-form-fitting body (80) mounted in a movable manner in relation to the clamping mount (42) and having an axial-form-fitting contour (81) for engagement in a mating axial-form-fitting contour (25) of the fastening portion (20) of the hand held power tool (10), characterized in that said handle device has a form-fitting actuation grip (90), which is separate from the clamping-actuation grip (78) and which can be manually actuated by the operator (BE) independently of the clamping-actuation grip (78), for adjusting the axial-form-fitting body (80) between an engagement position, in which the axial-form-fitting contour (81) is engaged with the mating axial-form-fitting contour (25) and locks the handle device (40) with respect to the insertion axis (S) in a form-fitting manner on the fastening portion (20) of the hand-held power tool (10), and a release position (F), in which the axial-form-fitting contour (81) is disengaged from the mating axial-form-fitting contour (25), and the hand-held power tool (10) and the holding device can be displaced relative to one another with respect to the insertion axis (S).

2. The handle device (40) according to claim 1, characterized in that the axial-form-fitting contour (81) can be adjusted between the engagement position and the release position (F) when the clamping mount (42), in particular the clamping ring (41), is in the release position (L) and / or in that, in the engagement position, the axial-form-fitting contour projects in front of the inner circumferential surface (43) of the clamping mount (42) when the clamping mount (42) is in the release position (L).

3. The handle device according to claim 1 or 2, characterized in that, in the engagement position, the axial-form-fitting contour (81) fixes the handle device with respect to the insertion axis (S) in an axially nondisplaceable and / or form-fitting manner and / or in that the axial-form-fitting body (80) and the form-fitting actuation grip (90) are firmly or integrally connected to one another or movement-coupled by a driver device and / or in that the axial-form-fitting body (80) is loaded by a spring arrangement (95) into the engagement position.

4. The handle device according to any one of the preceding claims, characterized in that the axial-form-fitting body (80) is mounted so that it can be linearly displaced relative to the clamping ring (41) along a setting axis (SA).

5. The handle device according to claim 4, characterized in that, on the handle (60) and / or on the clamping ring (41), a guide device for linearly guiding the axial-form-fitting body (80) along the setting axis (SA) is provided and / or in that the setting axis (SA) extends tangentially or at a radial spacing tangentially with respect to the inner circumferential surface (43) of the clamping mount (42) and / or in that the axial-form-fitting contour (81) has a sloped inclined surface or wedge-shaped surface (82B) which is inclined flat and / or inclined at an angle (α) of less than 30°, in particular less than 25°, particularly preferably less than 20°, with respect to the setting axis (S) for application and / or wedging with the mating axial-form-fitting contour (25), in particular with a bottom (27) of the mating axial-form-fitting contour (25), and / or in that the handle (60) has a longitudinal central axis (LM) with respect to which the setting axis (SA) is parallel or coaxial and / or in that the axial-form-fitting body (80) is mounted in an exclusively linearly displaceable and / or non-pivotable or non-rotatable manner relative to the clamping ring (41).

6. The handle device according to any one of the preceding claims, characterized in that, with respect to the inner circumferential surface (43) of the clamping mount (42) and / or with respect to a center of the clamping mount (42), the axial-form-fitting contour (81) is mounted so that it can be displaced relatively and / or tangentially between the engagement position and the release position (F), and / or in that, for adjusting the clamping mount (42) between the clamping position (K) and the release position (L), the clamping-actuation grip (78) is mounted so that it can rotate with respect to the clamping ring (41), and, for adjusting the axial-form-fitting body (80) between the engagement position and the release position (F), the form-fitting actuation grip (90) is mounted so that it can be displaced with respect to the clamping ring (41) and / or in that the clamping-actuation grip (78) is formed by a rod-shaped handle body (70) of the handle (60), which can be grasped by the operator (BE) with the inner surface of his / her hand, or it has such a handle body (70), and / or in that the form-fitting actuation grip (90) is arranged between the clamping ring (41) and the clamping-actuation grip (78).

7. The handle device according to any one of the preceding claims, characterized in that, between a gripping portion of the clamping-actuation grip (78), provided for grasping the clamping-actuation grip (78), and a gripping surface (92) of the form-fitting actuation grip (90), provided for the manual actuation, a spacing is provided which corresponds approximately to the spacing between the anterior phalanx of the thumb (DAG) of a hand (H) of an adult operator (BE) and an index finger of the hand when the thumb (DA) is splayed out from the hand (H), so that the operator (BE) can actuate the form-fitting actuation grip (90) while grasping the gripping portion of the clamping-actuation grip (78) with the anterior phalanx of the thumb (DAG), and / or in that the form-fitting actuation grip (90) is designed as a ring body or a sleeve body (91A).

8. The handle device according to any one of the preceding claims, characterized in that the clamping ring (41) can be adjusted by a tensioning anchor (66) between the clamping position (K) and the release position (L).

9. The handle device according to claim 8, characterized in that the axial-form-fitting body (80) is passed through by a tensioning anchor (66) and / or guided on the tensioning anchor (66) and / or in that the tensioning anchor (66) can be adjusted linearly along a tensioning axis (SP) by a handle body (70) of the clamping-actuation grip (78), in particular by a rotational actuation of the handle body (70) about the tensioning axis (SP), wherein it is advantageously provided that a threaded portion of the tensioning anchor (66) is screwed into a screw mount of the handle body (70), so that, by the rotational actuation of the handle body (70), the tensioning anchor (66) is linearly adjustable relative to the screw mount, wherein a stop (69A) is provided which blocks a complete unscrewing of the tensioning anchor (66) from the screw mount.

10. The handle device according to any one of the preceding claims, characterized in that the handle device (40) comprises at least one rotational-form-fitting contour (50) for engagement in a mating rotational-form-fitting contour (30) on the fastening portion (20) of the hand-held power tool (10), wherein the mating rotational-form-fitting contour (30) and the rotational-form-fitting contour (50), when engaged with one another, fix the handle device (40) in a rotationally fixed manner relative to the fastening portion (20) of the hand-held power tool (10) with respect to the insertion axis (S).

11. The handle device according to any one of the preceding claims, characterized in that the axial-form-fitting contour (81), in its engagement position engaging in the mating axial-form-fitting contour (25) or in an intermediate position between the engagement position and the release position (L), holds the handle device (40) with respect to the insertion axis (S) so that it can be axially displaced by a predetermined adjustment range (VS) but is held captive on the fastening portion (20), wherein it is advantageously provided that the adjustment range (VS) is dimensioned so that the rotational-form-fitting contour (50) and the mating rotational-form-fitting contour (30) can be disengaged from or engaged with one another.

12. The handle device according to any one of the preceding claims, characterized in that, for the adjustment between the clamping position (K) and the release position (L), the ring body (44) of the clamping ring (41) has ring ends (44, 45) which can be adjusted toward one another and apart from one another, and the axial-form-fitting body (80) is supported on one or both ring ends (44, 45) and / or mounted in such a manner that it can be moved between the engagement position (E) and the release position (F) and / or in that the axial-form-fitting body (80) is a separate body from the clamping ring (41) and / or is not integral with the clamping ring (41) and / or in that the axial-form-fitting body (80) can be adjusted independently of the clamping-actuation grip (78) between the engagement position (E) and the release position (F) and / or is not movement-coupled and / or in actuation engagement with the clamping-actuation grip.

13. The handle device according to any one of the preceding claims, characterized in that the axial-form-fitting body (80) can be actuated exclusively by the form-fitting actuation grip (90) between the engagement position (E) and the release position (F) and / or cannot be actuated by the clamping-actuation grip (78) and / or in that the form-fitting actuation grip (90) has a gripping surface (92) which rises toward the clamping-actuation grip (78) and / or which is suitable for engaging behind, so that an operator whose hand grasps the clamping-actuation grip (78) with their hand surface can actuate the gripping surface (92) with a finger projecting from the hand surface of the hand, in particular an index finger, in order to adjust the axial-form-fitting body (80) into the release position (F), and / or in that the axial-form-fitting body (80) can be adjusted between the engagement position (E) and the release position (F) when the clamping mount (42) is in the clamping position.

14. The handle device according to any one of the preceding claims, characterized in that the axial-form-fitting body (80) has an insertion bevel (82B), on the front side in particular with respect to its setting axis (SA), and / or front surface (82), which, in the engagement position (E), faces a bottom (27) of the mating axial-form-fitting contour (25) or is supported on the bottom (27), wherein the front surface (82) has a region (82A), the contour of which corresponds approximately to the contour of the clamping mount (42) in the region of the axial-form-fitting body (80) and / or has a rounding corresponding to the clamping mount (42).

15. A hand-held power tool (10) with a handle device according to any one of the preceding claims.

Images