阅读说明：本技术 手持式工具机 (Hand-held power tool ) 是由 A·特里克 M·卢茨 T·朔米施 K·马塔尔 于 2020-10-30 设计创作，主要内容包括：本发明涉及一种手持式工具机、尤其是角磨机,其具有用于驱动附件工具、尤其是磨削盘和/或切割盘的驱动单元；用于切换所述驱动单元的切换单元和用于操纵所述切换单元的操纵单元。本发明提出,所述操纵单元具有第一操纵元件和相对于第一操纵元件可运动地支承的第二操纵元件。(The invention relates to a hand-held power tool, in particular an angle grinder, having a drive unit for driving an accessory tool, in particular a grinding and/or cutting disk; a switching unit for switching the drive unit and a manipulating unit for manipulating the switching unit. The invention proposes that the actuating unit has a first actuating element and a second actuating element which is mounted so as to be movable relative to the first actuating element.)

1. A hand-held power tool, in particular an angle grinder, having:

a drive unit (15) for driving an accessory tool, in particular a grinding and/or cutting disc,

-a switching unit (17) for switching the drive unit (15), and

a manipulation unit (21) for manipulating the switching unit (17),

the actuating unit (21) is characterized by a first actuating element (23) and a second actuating element (25) which is mounted so as to be movable relative to the first actuating element (23).

2. The hand-held power tool according to claim 1, characterized in that the first actuating element (23) is arranged parallel to the second actuating element (25).

3. The hand-held power tool according to one of the preceding claims, characterized in that the first actuating element (23) is mounted so as to be movable in translation relative to the second actuating element (25).

4. The hand-held power tool according to one of the preceding claims, characterized in that the second actuating element (25) is mounted movably, in particular translationally, relative to the first actuating element (23) for unlocking the actuating unit (21) and thus for actuating the switching unit (17).

5. The hand-held power tool according to one of the preceding claims, characterized in that the first actuating element (23) is provided for actuating the second actuating element (25), in particular by means of a further translational movement, in that: the distance of the first actuating element (23) from the second actuating element (25) is reduced.

6. The hand-held power tool according to one of the preceding claims, characterized in that the actuating unit (21) forms a handle region.

7. The hand-held power tool according to one of the preceding claims, characterized in that the actuating unit (21) has a guide unit (63) which is provided for guiding the first actuating element (23) relative to the second actuating element (25).

8. Hand-held power tool according to one of the preceding claims, characterised in that it has a locking unit (31) which is provided for locking the actuating unit (21) in a locked state and for releasing it in an unlocked state.

9. The hand-held power tool according to one of the preceding claims, characterized in that the locking unit (31) is provided for adjusting the actuating unit (21), in particular the first actuating element (23) and the second actuating element (25), relative to one another, and in particular is adjusted such that the actuating unit (21) can be actuated.

10. Hand-held power tool according to one of the preceding claims, characterized in that at least one of the following is possible:

-the locking unit (31) is rotatably supported;

-the locking unit (31) can be arranged on the first operating element (23);

-the locking unit (31) is arrangeable in a recess of the first manoeuvering member (23);

-the locking unit (31) can be arranged between the first operating element (23) and the second operating element (25).

11. The hand-held power tool according to one of the preceding claims, characterized in that the locking unit (31) is provided for adjusting the second actuating element (25) relative to the first actuating element (23), in particular by means of a lever action, in particular in order to release the actuation of the actuating unit (21).

12. The hand-held power tool according to one of the preceding claims, characterized in that the actuating unit (21) has a sliding element (81, 83) which is provided for actuating the switching unit (17) by means of the actuating unit (21).

13. The hand-held power tool according to one of the preceding claims, characterized in that the actuating unit (21) has a rolling element (87) which is provided for actuating the switching unit (17) by means of the actuating unit (21).

Technical Field

The invention relates to a hand-held power tool.

Background

DE 102011089717 a1 discloses a power tool switching device having at least one switching unit with at least one movably mounted actuating element for actuating a mechanical, electrical and/or electronic switching element, which has a guide unit which is provided for converting a movement of the actuating element in a main direction of extension of the actuating element at least into a movement of the actuating element extending transversely to the main direction of extension when the actuating element is actuated in the main direction of extension of the actuating element.

Disclosure of Invention

The object of the invention is to improve a hand-held power tool with simple design measures.

This object is achieved by a hand-held power tool, in particular an angle grinder, having a drive unit for driving an accessory tool, in particular a grinding and/or cutting disk; having a switching unit for switching the drive unit; has a control unit for controlling the switching unit.

In particular, the hand-held power tool may have a locking unit for locking the actuation of the actuation unit.

The invention provides that the locking unit can be unlocked as a function of an actuating force acting on the actuating unit.

For actuating the actuating unit, an actuating force can be applied to the actuating unit, which actuating force is provided for bringing the actuating unit from the release state into the actuating state. Usually, the actuating force is applied perpendicularly to the actuating surface of the actuating unit. In particular, as long as the actuating unit is acted upon by the actuating force and the locking unit is in the locked state, the actuation of the actuating unit can thereby be locked.

In general, the actuating unit can be locked or unlocked by means of the locking unit, independently of an actuating force acting on the actuating unit.

In this case, it is possible to prevent the actuating unit from being moved from the released state into the actuated state as long as the actuating unit is acted upon by the actuating force and the locking unit has not been unlocked beforehand. In particular, it is thereby prevented that the locking unit is adjusted or can be adjusted from the locked state into the unlocked state when the actuating unit is acted upon by an actuating force.

When the actuating unit is acted upon by an actuating force, the actuating unit can be pivoted out, and in particular pivoted out, in such a way that the unlocking of the locking unit is prevented. The hand-held power tool can thereby be held particularly advantageously by the operator. In particular, when the actuating unit is acted upon by an actuating force, it can be prevented that the locking unit is moved from the locked state into the unlocked state.

In this case, it can be prevented that the operator unintentionally actuates the hand-held power tool by: the operator grips the handling unit, for example, in order to be able to carry or hold the hand-held power tool without handling or without wishing to handle the hand-held power tool. This prevents the hand-held power tool from being unintentionally unlocked by: when an actuating force is applied to the actuating unit, unlocking of the locking unit is prevented.

For example, when the lock unit is in the locked state, the manipulation of the manipulation unit is locked. At this time, the locking unit can strike a stop which prevents the actuating unit from being actuated. Here, the locking unit can be moved from the locked state into the unlocked state.

In particular, the term "can be unlocked as a function of an actuating force acting on the actuating unit" is to be understood to mean, for example, that the actuating unit is secured against unlocking the locking unit when an actuating force acts on the actuating unit, and that the actuating unit can be unlocked by means of the locking unit when no actuating force acts on the actuating unit.

The hand-held power tool can be designed as a portable hand-held power tool. The hand-held power tool may have a machine housing. The machine housing can be provided for enclosing, in particular, built-in components, such as a drive unit, a switching unit, etc. The hand-held power tool can be provided for movably mounting the actuating unit on the machine housing.

The drive unit can be rectified mechanically, in particular by means of carbon brushes and current collectors, or electronically, in particular by means of semiconductor elements, for example power transistors or thyristors. The drive unit may be designed as an electric motor.

The accessory tool can be configured as a grinding disk and/or a cutting disk. In principle, the accessory tool can be selected, for example, depending on the hand-held power tool used, so that, for example, a saw disk or a saw blade is taken into account when using a circular saw and a drilling tool or a chisel is taken into account when using a hammer drill. Of course, other accessory tools that appear to be meaningful to those skilled in the art may also be used.

The switching unit includes an on/off switch. The on/off switch is provided for switching the drive unit on and/or off. For this purpose, the switching unit has in particular a push button which is preferably provided for releasing or blocking the current flow to the drive motor. The switching unit may be configured to enable and/or interrupt the energy supply of the drive unit as a result of the actuation unit and/or the switching unit. The switching unit may be configured as a mechanical, electrical and/or electronic switching unit. The switching unit can be arranged in an electrical circuit between a supply line (e.g., a cable), on which a plug for connection to a socket or an accumulator device is arranged, and a consumer (e.g., a drive unit in the form of an electric motor) of the hand-held power tool.

The actuating unit is provided for actuating the switching unit in order to switch the drive motor on and/or off by means of the switching unit. The actuating unit may be configured as an actuating switch. The actuating unit can be configured to actuate the switching pawl, to actuate the switching button and/or to actuate the switching lever. The operating unit may be provided for operating the switching unit indirectly or directly. In particular, the actuating unit can be provided for contacting the switching unit in such a way that the switching unit is switched from the off state into the on state and vice versa, if necessary. The operating unit can extend through the machine housing in order to operate the switching unit.

The locking unit can be provided for interacting with the actuating unit and in particular for limiting or locking a movement of the actuating unit. The locking unit can be provided for limiting, in particular locking, the movement of the actuating unit and/or the switching unit. In particular, the locking unit can be provided for locking a change of state of the actuating unit and/or the switching unit. For example, the locking unit can prevent the actuation unit from being transferred from the released state into the actuated state and/or the switching unit from being transferred from the switched-off state into the switched-on state.

In the following, further embodiments of the hand-held power tool according to the invention are described.

It can be expedient if the locking unit is mounted movably, in particular rotatably, in the unloaded release state of the actuating unit. An unloaded release state of the actuating unit is to be understood in particular as a state in which no actuating force acts on or is exerted on the actuating unit. The locking unit is mounted in a translatory and/or rotationally movable manner relative to the actuating unit, in particular in the unloaded release state, in order, for example, to bring the locking unit from the locked state into the unlocked state. In the unloaded release state, the actuating unit can be maximally spaced apart relative to the machine housing of the hand-held power tool. In the unloaded release state, the actuating unit can be moved to a maximum extent relative to the machine housing or further away than in the loaded release state and/or actuating state. The locking unit can thus be realized in a particularly simple manner.

Furthermore, it may be expedient for the actuating unit to be pivoted out of the released state in the loaded released state in such a way that an actuation of the locking unit from the locked state into the unlocked state is prevented. In particular, the actuation of the locking unit is positively locked in the loaded release state of the actuation unit and in the locked state of the locking unit. A loaded release state of the actuating unit is to be understood in particular to mean a state in which an actuating force acts or is applied to the actuating unit. The locking unit can be pretensioned in the loaded state of the actuating unit, in particular between the actuating unit and a machine housing of the hand-held power tool. The locking unit can be provided for interacting with a machine housing of the hand-held power tool. The locking unit may be arranged at least partially between the actuating unit and the machine housing. The locking unit may be spaced relative to the machine housing. The locking unit can be spaced further apart from the machine housing in the unloaded actuating state of the actuating unit than in the loaded release state. The locking unit may contact the machine housing in a released state under load. In the unloaded release state, the locking unit may be spaced apart relative to the machine housing. The locking unit may be mounted movably relative to the machine housing. The locking unit may be arranged on the actuating unit. The locking unit can be connected to the actuating unit and can be mounted in particular so as to be rotatable relative to the actuating unit. The locking unit may restrict the manipulation unit. This makes it possible to protect the hand-held power tool particularly reliably against inadvertent actuation. In this way, the locking unit can be brought into a state in which it is prevented from being unlocked in a particularly simple manner.

The actuating unit can be mounted so as to be movable from an unloaded release position to a loaded release position. The movement of the actuating unit can be limited to a small section of travel. The travel section, over which the actuating unit can be moved in the locked state of the locking unit, can be several millimeters or several angular deviations. The stroke section can extend for up to 1cm, in particular up to 0.8cm, preferably up to 0.5cm, particularly preferably from 0.5 to 5 mm. The angular deviation about the operating axis of the actuating unit may be up to 3 °, in particular up to 1 °, preferably up to 0.5 °, particularly preferably up to 0.25 °. The movement of the actuating unit can be limited by a stop of the locking unit.

Furthermore, it may be expedient if the hand-held power tool has a form-locking element which is provided for limiting a movement of the locking unit, in particular a movement from the locked state to the unlocked state. The form-locking element can be formed integrally or in one piece with the machine housing. The form-locking element can be designed as a form-fit. The form-locking element can form a stop which is provided for limiting the movement of the locking unit. The form-locking element can also be designed as a form-fit recess which is provided for at least partial reception of the locking unit. This makes it possible to limit the movement of the locking unit in a particularly simple manner.

Furthermore, it may be expedient for the form-locking element to be arranged on a machine housing of the hand-held power tool. The form-locking element may be provided for preventing the locking unit from moving from the locked state into the unlocked state. The form-locking element can thereby be provided in a particularly simple manner.

The invention proposes that the locking unit is arranged on the actuating unit. The locking unit may restrict movement of the manipulation unit. The locking unit can be locked or prevented from actuating the switching unit by means of the actuating unit. This makes it possible to prevent unintentional operation of the hand-held power tool in a particularly simple manner.

It is furthermore proposed that the locking unit has a spring element which is provided for bringing the locking unit from the unlocked state into the locked state. The spring element can be designed as a helical torsion spring or as a torsion spring. The locking unit can be pretensioned in the unlocked state. The locking unit can be more strongly biased in the unlocked state than in the locked state. This ensures that the locking unit is reset to the initial position or the locked state as soon as the actuating unit is brought into the released state. In this way, the locking unit can be reset in a particularly simple manner.

Furthermore, it is proposed that the actuating element is designed to actuate the switching pawl. The actuating element can have an elongate extension. The actuating element may have a main extent which extends substantially along a main extent of the hand-held power tool. The actuating element can extend along a main extent of the grip region, in particular over more than 40%, preferably over more than 50%, advantageously over 60%, particularly preferably over 70%, further preferably over 80% and/or preferably less than 80%, advantageously less than 70%. The actuating element can be mounted movably, in particular rotatably, relative to the machine housing. The actuating element can be arranged on the machine housing. The actuating element can be arranged in the released state at an angle to the machine housing, in particular to the handle axis. The actuating element can be arranged parallel to the machine housing in the actuating state, in particular to the handle axis. The actuating element can have a fastening end connected to the machine housing and a release end facing away from the fastening end. The locking unit may be disposed between the fixed end and the loose end. The locking unit may be arranged substantially at a midpoint between the fixed end and the loose end. The locking unit, in particular the locking element, can be arranged in the region of the release end. The actuating element can thus be gripped and actuated particularly easily by an operator of the hand-held power tool.

The handle axis may extend along a main extent of the hand-held power tool or of a handle region of the machine housing.

It can be expedient if the locking unit has a locking element which is arranged on the fastening element and is mounted rotatably relative to the actuating element. The actuating element can be actuated by means of a substantially translatory movement. The locking element can be actuated by means of a substantially translatory movement which is transverse, in particular substantially perpendicular, to the actuation or actuation direction of the actuation element. It is thereby ensured that, for actuating the actuating unit, only a single actuating or actuating direction is not sufficient, but rather two actuating or actuating directions which are independent of one another are required.

In addition, it may be expedient if the locking element is mounted rotatably about a rotational axis, wherein the rotational axis is spaced further apart from the form-locking element in the unloaded release state of the actuating element than in the loaded actuating state. This ensures that the actuating unit is not inadvertently actuated.

The invention further relates to a method for locking the actuation of a hand-held power tool having an actuation unit and a locking unit, comprising the following steps: applying a manipulation force to the manipulation unit; the locking unit is actuated from the locked state to a stop state with the form-locking element. This ensures that the actuating unit is not inadvertently actuated. In particular, the hand-held power tool can be gripped and carried by an operator without the manipulation unit being manipulated or being brought into a manipulation state.

It may also be expedient for a control unit/the control unit to be able to be actuated by means of a control about or tangential to a handle axis of the hand-held power tool.

The actuating unit can be designed as a sliding switch which is displaceable in a tangential manner, in particular relative to the outer surface. The actuating unit can be provided for moving the hand-held power tool or the switching unit by means of a sliding movement of the actuating unit. The actuating unit can extend parallel to the machine housing in a circumferential direction about the handle axis. The actuating unit can be mounted so as to be pivotable or displaceable in the circumferential direction about the handle axis. The handling unit may extend through a machine housing slot in the machine housing.

This makes it possible to handle the unit particularly easily and intuitively. By the operator gripping the grip region and the actuating unit with his hand, the operator can particularly reliably bring the actuating unit from the release position into the actuating position by turning the hand or at least in sections by turning the individual hand sections.

The machine housing of the hand-held power tool can have a housing slot which is provided for receiving the actuating unit. The machine housing can delimit the housing slot, in particular, in a plane by 360 °. The housing slot may be provided for movably supporting the manipulation unit. The housing slot can be provided for supporting the actuating unit in such a way that the actuating unit extends from the inside, in particular the inner side, of the machine housing to the outside, in particular the outer side. The housing slot can have an extent in the circumferential direction about the handle axis which is particularly smaller than an extent of the actuating unit in the circumferential direction about the handle axis by at least 70%, preferably by at least 60%, advantageously by at least 50%, particularly preferably by at least 40%. This ensures that the actuating unit is held in or on the machine housing or housing slot. In principle, the machine housing can overlap the actuating unit both in the release state and in the actuating state, so that the housing slot can be delimited. Preferably, the machine housing can overlap the actuating unit in the release state and not overlap the actuating unit on both sides in the actuating state, whereby in particular the housing slot can be at least partially exposed. The housing slot may extend along the manipulation unit. The housing slot can limit the movement of the actuating unit, in particular in the circumferential direction about the handle axis.

The machine housing may have a guide unit which is provided for guiding the handling unit along the machine housing, in particular in a circumferential direction about the handle axis. The guide unit may be configured as a guide groove. The guide groove may be provided for extending in the circumferential direction. The guide slot may be arranged for receiving and guiding the steering unit in a circumferential direction. The operating unit can thus operate the hand-held power tool or the switching unit in a particularly simple manner.

It may be expedient for the actuating unit to form a grip region. The actuating unit can extend along the extension of the handle axis relative to the handle region, in particular more than 40%, preferably more than 50%, advantageously more than 60%, particularly preferably more than 70%, further preferably more than 80% and/or preferably less than 80%, advantageously less than 70%. The handling unit can be gripped by an operator when needed. The handling unit may have a gripping area for gripping by an assistant. In this way, the operator can grip the hand-held power tool in a plurality of gripping positions and can manipulate the hand-held power tool.

Furthermore, it can be expedient for the actuating unit to extend in the circumferential direction relative to the handle axis over an angular range of at least 30 °, in particular at least 40 °, preferably at least 50 °, advantageously at least 60 °, and/or at most 70 °, in particular at most 80 °, preferably at most 70 °, further preferably at most 60 °. In this way, the operator can handle the hand-held power tool from different gripping positions, which makes it possible to particularly flexibly grip and handle the hand-held power tool.

Furthermore, it may be expedient for the actuating unit to extend along the grip axis over more than 40%, preferably over 50%, advantageously over 60%, particularly preferably over 70%, further preferably over 80% and/or preferably less than 80%, advantageously less than 70%, relative to the extent of the grip region.

This makes it possible to operate the hand-held power tool particularly flexibly and reliably by: the manipulation can be performed along the entire extension of the manipulation unit.

Furthermore, it may be expedient for the actuating unit to be able to actuate in a left-handed and/or right-handed manner. "left-hand" or "right-hand" is to be understood as meaning a direction of rotation which, preferably along the handle axis, extends to the left or to the right, viewed in the direction from the handle region to the tool receiving region, about the handle axis. This enables a particularly simple handling of the hand-held power tool.

The invention proposes that the actuating unit has a spring element which is provided for restoring the actuating element from the actuating state into the release state. The spring element may be configured as a torsion spring or as a helical torsion spring. The spring element may be configured as a tension-compression spring. Of course, other (spring) elements which are apparent to the person skilled in the art and which return the actuating element into the release state can also be considered. In this way, the actuating unit can be reset particularly reliably, so that the actuating unit is adjusted, for example, from the actuating state into the release state.

Furthermore, it is proposed that the actuating unit be configured in such a way that an actuation of the hand-held power tool or of the switching unit can be actuated by means of a movement along the handle axis or in a circumferential direction around the handle axis. In particular, a second actuating element can be provided, which is coupled to the first actuating element in such a way that a movement of the first actuating element about the handle axis causes a movement of the second actuating element along the handle axis. The switching unit may be arranged below the first actuating element. The switching unit can thereby be arranged in the machine housing in a particularly space-saving manner.

Furthermore, it is proposed that the actuating unit has a first actuating element and a second actuating element which is mounted so as to be movable relative to the first actuating element. The first actuating element is provided for actuating the second actuating element. The second actuating element is mounted so as to be movable substantially perpendicular to the actuating direction of the first actuating element. The first actuating element can be mounted pivotably about a handle axis. The second actuating element can be mounted so as to be movable in translation. The second actuating element can be mounted movably along the handle axis. A particularly compact actuating unit can thereby be achieved.

It may be expedient if the actuating unit has a guide unit which is provided for guiding the first actuating element relative to the second actuating element. The guide unit can have a form-locking element, in particular a form-locking projection, which engages in a further form-locking element, in particular a housing slot. The guide unit may be provided for predetermining a relative movement of the second actuating element with respect to the first actuating element. The form-locking element, in particular the form-locking projection, can be arranged on the first actuating element. The form-locking element, in particular the form-locking recess, can be arranged on the second actuating element. This makes it possible to operate the switching unit particularly reliably and compactly.

Furthermore, it may be expedient for the first actuating element to be arranged parallel to the second actuating element. A particularly compact actuating unit can thereby be constructed.

Furthermore, it can be expedient if the actuating unit has an actuating projection which projects in the radial direction. The handling protrusion may be arranged for protruding with respect to the machine housing. The manipulation protrusion may be provided to restrict movement of the manipulation unit in the circumferential direction. The actuating unit can be provided for stopping on a machine housing delimiting the housing slot when the actuating unit is actuated.

Furthermore, it may be expedient for the actuating unit to have a first actuating element and a second actuating element which is mounted so as to be movable relative to the first actuating element. The first actuating element may be provided for actuating the second actuating element. The second actuating element can in turn be provided for actuating a switching unit.

It may be expedient for the first actuating element to be arranged parallel to the second actuating element. The actuating unit can thereby be embodied particularly compactly.

Furthermore, it may be expedient for the first actuating element to be mounted so as to be movable in translation relative to the second actuating element.

Furthermore, it may be expedient for the second actuating element to be mounted so as to be movable in translation relative to the first actuating element for unlocking the actuating unit and for actuating the switching unit. The second actuating element can be provided for bringing the actuating unit from the locked state into the unlocked state by means of the first translational movement and for switching the switching unit by means of the second translational movement. The first movement and the second movement can be directed parallel to the actuating unit, in particular parallel to the first actuating element and/or the second actuating element. The first and second translational movements may be oriented substantially along a main direction of extension of the hand-held power tool or along a handle axis of a handle region of the hand-held power tool.

Furthermore, it may be expedient if the first actuating element is provided for actuating the second actuating element, in particular by means of a further translational movement, in that: the distance of the first actuating element from the second actuating element is reduced. The further translational movement may be oriented transversely, in particular substantially perpendicularly, to the first translational movement and/or the second translational movement. The further translational movement may be oriented substantially perpendicularly to a main direction of extension of the hand-held power tool or radially to a handle axis of a handle region of the hand-held power tool.

Furthermore, the invention provides that the actuating unit forms a grip region. In particular, the handling unit can preferably be gripped with the entire hand of the operator.

Furthermore, it is proposed that the actuating unit has a guide unit which is provided for guiding the first actuating element relative to the second actuating element. The guide unit can have a form-locking element, in particular a form-locking projection, which engages in a further form-locking element, in particular a housing slot. The guide unit may be provided for predetermining a relative movement of the second actuating element with respect to the first actuating element. The form-locking element, in particular the form-locking projection, can be arranged on the first actuating element. The form-locking element, in particular the housing slot, can be arranged on the second actuating element. The first actuating element has a sliding surface which is provided for transmitting the movement of the second actuating element to the first actuating element. This ensures that the actuating unit functions simply and safely.

Furthermore, it is proposed that the hand-held power tool have a locking unit which is provided for locking the actuating unit in the locked state and releasing it in the unlocked state.

It may be expedient if the locking unit is provided for adjusting the actuating unit, in particular in such a way that the actuating unit can be actuated. The locking unit may be provided for adjusting or displacing the second actuating element relative to the first actuating element. The locking unit may be arranged on the first actuating element. The locking unit can be rotatably mounted on the actuating element. The locking unit may be provided for translationally adjusting the second actuating element relative to the first actuating element by means of a rotational movement of the locking unit.

Furthermore, it may be expedient for the locking unit to be rotatably mounted. The locking unit may be arranged on the first actuating element.

In addition, it may be expedient if the locking unit is provided for adjusting the second actuating element relative to the first actuating element, in order in particular to release the actuation of the actuating unit. The locking unit may be provided for moving the first actuating element relative to the second actuating element and releasing the relative movement of the first actuating element relative to the second actuating element.

Furthermore, it may be expedient for the actuating unit to have a sliding element which is provided for actuating the switching unit by means of the actuating unit. The sliding element may be configured as a sliding ridge or a sliding notch. The sliding element can be arranged in or on the first and/or second actuating element. The sliding element can have a ramp surface which is provided for predefining, in particular force-fitting predefining, a movement of the actuating unit, in particular of the second actuating element. The actuating unit may have a plurality of sliding elements. The second actuating element can be designed as a handwheel. The handwheel may have a slide notch. A particularly compact actuating unit can thereby be constructed.

The invention proposes that the actuating unit has a rolling element which is provided for actuating the switching unit by means of the actuating unit. This enables a particularly reliable and simple actuation of the actuating unit.

The invention proposes that the actuating unit is provided for actuating the switching unit by means of a deformation of the actuating unit. The handling unit is at least partially deformable.

The operating unit is arranged in a housing slot of the machine housing. The manipulation unit may be provided to cover the housing slot. The manipulation unit may be arranged for directly manipulating the switching unit.

By means of such a handling unit, a deformation of the handling unit can be transmitted, such that, for example, a deformation along the handle axis at one end of the handling leads to a deformation at an end of the handling unit facing away from this end. The operator can thus manipulate the actuating unit particularly flexibly by: the deformation is transmitted over the entire length of the actuating unit.

It may be expedient if the actuating unit has an actuating element which is provided for actuating the switching unit by means of an in particular elastic deformation of the actuating element. The elastic deformation may be provided for transmitting a movement to the switching unit for operating the switching unit.

Furthermore, it may be expedient for the actuating unit to have at least three or at least four actuating elements which are provided for actuating the switching unit by means of an in particular elastic deformation of the actuating unit.

Furthermore, it can be expedient if the at least three or at least four actuating elements are arranged parallel to one another and are coupled to one another.

Furthermore, it may be expedient for the actuating unit to extend along the handle axis relative to the extension of the handle region, in particular more than 40%, preferably more than 50%, advantageously more than 60%, particularly preferably more than 70%, further preferably more than 80% and/or preferably less than 80%, advantageously less than 70%.

The invention proposes that the actuating element be designed to be elongate, in particular substantially rod-shaped.

Furthermore, it is proposed that the actuating unit has a form-locking element, in particular a form-locking projection, and that the actuating unit is provided for interacting with a form-locking element, in particular a form-locking recess, which corresponds to the form-locking element. The form-locking element can be designed as a form-locking projection which is designed in the form of a circle. The form-locking element can be designed in the form of a pin. The corresponding form-locking element can be configured as a form-locking recess. The form-locking recess can have a cross section which is designed in the form of a slot or an ellipse. The form-locking recess can be configured as an insertion recess.

Furthermore, it is proposed that the actuating elements are mounted so as to be movable relative to one another.

It can be expedient if the actuating element has a toothing which couples the movement of the actuating element.

Furthermore, it may be expedient if the hand-held power tool has a locking unit which is provided for locking the actuation of the actuating unit in the locked state and releasing the actuation of the actuating unit in the unlocked state.

Drawings

Further advantages result from the following description of the figures. Embodiments of the invention are illustrated in the drawings. The figures, description and claims contain a number of combined features. The person skilled in the art can also, in line with the objective, consider the features individually and summarize them into meaningful further combinations. Shown here are:

figure 1 is a perspective view of a hand-held power tool,

figures 2 to 3 each show a view of the operating unit,

figures 4 to 6 each show a view of an embodiment of the actuating unit,

figures 7 to 9 each show a view of a further embodiment of the actuating unit,

figure 10 is a cross-sectional view of the steering unit,

figures 11 to 13 each show a view of a further embodiment of the actuating unit,

FIG. 14 is a view of a further embodiment of the actuating unit, and

fig. 15 to 18 each show a view of a further embodiment of the actuating unit.

In the following figures, identical components are provided with the same reference numerals.

Detailed Description

The drawing shows a hand-held power tool 11 configured as an angle grinder. The hand-held power tool 11 is designed to be portable and has a machine housing 13, which is provided to enclose the built-in components, such as the drive unit 15, the switching unit 17, etc.

The hand-held power tool 11 has a drive unit 15 for driving an accessory tool in the form of a grinding disk and/or a cutting disk. The drive unit 15 can be rectified mechanically, in particular by means of carbon brushes and current collectors, or electronically, in particular by means of semiconductor elements, for example power transistors or thyristors. The drive unit 15 may be designed as an electric motor. The drive unit 15 is designed as an EC motor. For actuating the drive unit 15, the hand-held power tool 11 has an electronic unit 19, which is suitable for this purpose, in particular in an EC motor.

The accessory tool can be configured as a grinding disk and/or a cutting disk. In principle, the accessory tool can be selected, for example, as a function of the hand-held power tool 11 used, so that, for example, a saw disk or a saw blade is taken into account when using a circular saw and a drilling tool or chisel is taken into account when using a hammer drill. Other accessory tools that appear to be relevant to the person skilled in the art and that correspond to the hand-held power tool 11 can of course also be used.

The hand-held power tool 11 has a switching unit 17 for switching the drive unit 15. The switching unit 17 has an on/off switch provided for switching the drive unit 15 on and/or off. For this purpose, the switching unit 17 has, for example, a push button which is preferably provided for releasing or blocking the current flow to the electric motor. The switching unit 17 is provided such that the energy supply to the drive unit 15 can be enabled or interrupted as a result of the actuation of the switching unit 17 by means of the actuation unit 21. The switching unit 17 can be designed as a mechanical and/or electrical switching unit 17. The switching unit 17 is arranged in the circuit between a power supply line of the hand-held power tool 11 (for example, a cable on which a plug for connection to a socket or an accumulator device is arranged) and a consumer (for example, the drive unit 15 in the form of an electric motor).

The hand-held power tool 11 has an actuating unit 21 for actuating the switching unit 17. The hand-held power tool 11 is provided for movably mounting the actuating unit 21 on the machine housing 13. The actuating unit 21 is provided for actuating the switching unit 17 in order to switch the electric motor on and/or off by means of the switching unit 17. The actuating unit 21 can be configured to actuate a switching pawl (fig. 1 to 3), to actuate a slider (fig. 4 to 10) or to actuate a switching button (fig. 11 to 18). The actuating unit 21 is provided for directly actuating the switching unit 17 and contacting the switching unit 17 in such a way that the switching unit 17 is switched from the off state into the on state and, if necessary, vice versa. The actuating unit 21 preferably extends through the machine housing 13 in order to actuate the switching unit 17. The actuating unit 21 is arranged in at least one actuating state in a housing slot 61 of the machine housing 13.

The actuating unit 21 has an actuating surface 27. The actuating surface 27 is provided for being contacted by an operator and is acted upon by an actuating force 29 in order to actuate the actuating unit 21. The actuating unit 21 has at least one first actuating element 23, 25.

The hand-held power tool 11 may have a locking unit 31 for locking the actuation of the actuation unit 21. The locking unit 31 can be unlocked as a function of the actuating force 29 acting on the actuating unit 21 (fig. 3).

For actuating the actuating unit 21, the first actuating elements 23, 25 exert an actuating force 29 on the first actuating elements 23, 25 of the actuating unit 21, which actuating force is provided for bringing the first actuating elements 23, 25 of the actuating unit 21 from the release state into the actuating state. Normally, the actuating force 29 is applied perpendicularly to the actuating surface 27 of the first actuating element 23, 25 of the actuating unit 21. As soon as the first actuating elements 23, 25 of the actuating unit 21 are acted upon by the actuating force 29 and the locking unit 31 is in the locked state, the actuation of the actuating unit 21 is locked.

In this case, as long as the first actuating elements 23, 25 of the actuating unit 21 are acted upon by the actuating force 29 and the locking unit 31 has not previously been unlocked, the actuating unit 21 is prevented from being brought from the released state into the actuated state. In particular, this prevents the locking unit 31 from being adjusted or being able to be adjusted from the locked state into the unlocked state when the first actuating elements 23, 25 of the actuating unit 21 are acted upon by the actuating force 29.

When the first actuating elements 23, 25 of the actuating unit 21 are acted upon by the actuating force 29, the first actuating elements 23, 25 of the actuating unit 21 are deflected out of the way in such a way that the locking unit 31 is prevented from unlocking. In particular, when the first actuating element 23, 25 of the actuating unit 21 is acted upon by the actuating force 29, the locking unit 31 prevents the locking unit 31 from being moved from the locked state into the unlocked state.

This prevents unintentional unlocking of the hand-held power tool 11 by: when the actuating force 29 acts on the actuating unit 21, the locking unit 31 is prevented from unlocking.

The locking unit 31 is provided for interacting with the actuating unit 21 and in particular for limiting or locking a movement of the first actuating element 23, 25 of the actuating unit 21. Thereby, the on/off of the switching unit 17 can be prevented. The locking unit 31 is provided to prevent a movement of the first actuating element 23, 25 of the actuating unit 21 for engaging the switch unit 17. The locking unit 31 is provided for locking the state changes of the manipulation unit 21 and the switching unit 17. For example, it is possible to prevent the actuation unit 21 from being transferred from the released state into the actuated state and to prevent the switching unit 17 from being transferred from the switched-off state into the switched-on state by means of the locking unit 31.

The locking unit 31 has a locking element 33, which is mounted so as to be movable relative to the actuating unit 21 and/or the machine housing 13 of the hand-held power tool 11. The locking element 33 can be provided for being moved from the locked state into the unlocked state. The locking element 33 is provided for striking a stop element 35, which prevents the actuating unit 21 from being actuated. The stop element 35 is located on the side opposite the locking element 33. The stop element 35 is arranged on the machine housing 13. The stop element 35 can be designed as a stop surface 37. The locking element 33 has a locking surface 39 which is provided for contacting the stop surface 37 in the locked state of the locking element 33.

The locking element 33 is arranged on the actuating unit 21 and is provided for limiting the movement of the actuating unit 21. The locking element 33 locks the actuation of the switching unit 17 in that: the actuation of the first actuating element 23 is blocked. The locking element 33 is arranged on the first actuating element 23 and is mounted rotatably relative to the first actuating element 23. The locking element 33 is connected to the first actuating element 23. The locking element 33 is rotatably mounted about a rotational axis dA. The axis of rotation dA passes through the first actuating element 23, 25 and intersects it. The blocking element 33 is arranged in a blocking recess 41 of the first actuating element 23, 25. The blocking element 33 extends from a side of the first actuating element 23 to a side facing away from this side. The locking element 33 has two locking arms 43, 45, which are each arranged on the sides of the first actuating element 23 facing away from one another. The locking element 33 is mounted rotatably about an axis of rotation dA, wherein the axis of rotation dA is spaced further apart from the shape-increasing portion 51 in the unloaded release state of the actuating element 23 than in the loaded actuating state.

The locking element 33 is mounted so as to be rotationally movable in the unloaded release state of the actuating unit 21. The locking element 33 is mounted in an unloaded release state so as to be rotatable or movable in a rotatable manner relative to the actuating unit 21 in order to bring the locking unit 31 from the locked state into the unlocked state. In the unloaded release state, the actuating unit 21 is spaced apart to the greatest extent relative to the machine housing 13 or is spaced further apart than in the loaded release state or actuating state. The locking element 33 is spaced apart from the machine housing 13 in the unloaded, released state. The locking element 33, in particular the locking surface 39, is provided for contacting the machine housing 13, in particular the stop surface 37, in the loaded release state.

In the loaded release state, the first actuating element 23 is deflected out of the release state in such a way that the locking element 33 is prevented from being actuated from the locked state into the unlocked state. In the loaded release state of the actuating unit 21 and in the locked state of the locking unit 31, the actuation of the locking element 33 is locked in a form-locking manner. In the loaded state of the actuating unit 21, the locking element 33 is pretensioned between the first actuating element 23 and the machine housing 13. The locking element 33, in particular the locking surface 39, is provided for interacting with the machine housing 13, in particular the stop surface 37. The locking element 33 is arranged at least partially between the first actuating element 23 and the machine housing 13. The locking element 33 is spaced apart relative to the machine housing 13. The locking element 33 is spaced further apart from the machine housing 13 in the unloaded actuating state of the first actuating element 23 than in the loaded release state. The locking element 33 contacts the machine housing 13 in the loaded release state. The locking element 33 is spaced apart from the machine housing 13 in the unloaded, released state. The locking element 33 is mounted so as to be movable relative to the machine housing 13.

The first actuating element 23 is mounted so as to be movable from an unloaded release position to a loaded release position in the locked state of the locking element 33. The movement of the first actuating element 23 is limited by the blocking unit 31 by the blocking of the blocking element 33 (in particular the blocking surface 39) and the stop element 35 (in particular the stop surface 37).

The hand-held power tool 11 has a form-locking element 51 embodied as a form-fit elevation 51, which is provided to limit a movement of the locking element 33 of the locking unit 31 from the locked state to the unlocked state. The form-locking element 51 is arranged on the machine housing 13 and is formed integrally or in one piece therewith. The raised shape 51 forms a further stop which is provided to limit the movement, in particular the rotational movement, of the locking element 33. The shape increasing portion 51 is provided for restricting movement of the lock member 33 from the locked state into the unlocked state. The shape-increasing portion 51 may be provided for preventing or at least hindering the movement of the locking element 33. The shape increase 51 is designed in such a way that the shape increase 51 can be overcome by the locking element 33 in the following manner: the actuating force 29 of the first actuating element 23 is released in order to reset the first actuating element 23, so that the locking element 33 is brought into the unlocked state.

The shape enlargement 51 is arranged between the stop element 35 (in particular the stop surface 37 of the stop element 35) and the locking element 33 (in particular the locking surface 39 of the locking element 33) and/or the first actuating element 23. The shape enlargement 51 has a molding surface 53 which is arranged transversely, in particular perpendicularly, to the stop surface 37. The shape-increasing portion 51 engages laterally on the stop element 35.

Alternatively or additionally, the form-locking element 51 may be designed as a form-fit recess, which is provided for at least partially receiving the locking element 33. The locking element 33 is mounted rotatably about an axis of rotation dA, wherein the axis of rotation dA is spaced further apart from the shape-increasing portion 51 in the unloaded release state of the actuating element 23 than in the loaded actuating state.

The locking unit 31 has a spring element (not shown) in the form of a leg spring element, which is provided for displacing or restoring the locking element 33 from the unlocked state into the locked state. Of course, other elements that appear to be useful to the person skilled in the art can also be used as spring elements, which return the locking element 33 into the initial state. The locking element 33 is pretensioned in the unlocked state. The locking element 33 is more strongly biased in the unlocked state than in the locked state.

The first actuating element 23 is designed to actuate the switching pawl and has an elongate extension. The first actuating element 23 has a main extent 9 which extends substantially along the main extent 9 of the hand-held power tool 11. The first actuating element 23 extends along more than 60% of the main extension 9 of the grip region. The first actuating element 23 is arranged on the machine housing 13 and is mounted so as to be rotationally movable about an actuating axis relative to the machine housing 13. The actuation axis is arranged transversely, in particular substantially perpendicularly, to the main extension 9 of the hand-held power tool 11.

The first actuating element 23 is arranged at an angle to the handle axis hA relative to the machine housing 13 in the released state. The first actuating element 23 is arranged substantially parallel to the handle axis hA relative to the machine housing 13 in the actuated state. The first actuating element 23 has a fixed end connected to the machine housing 13 and a loose end facing away from the fixed end, wherein the locking element 33 is arranged between the fixed end and the loose end. The locking unit 31 is arranged substantially at the midpoint between the fixed end and the loose end. The locking element 33 is arranged in the region of the release end.

The handle axis hA can extend along the main extension 9 of the handle region of the hand-held power tool 11 or the machine housing 13.

The locking element 33 is arranged on the first actuating element 23 and is mounted rotatably relative to the actuating element 23. The first actuating element 23 can be actuated by means of a substantially translatory movement which extends in particular radially with respect to the handle axis hA. The locking element 33 can be actuated by means of a substantially translatory movement which is transverse, in particular substantially perpendicular, to the actuation or actuation direction of the first actuating element 23.

In fig. 4 to 10, the actuating unit 21, in particular the first actuating element 23, can be actuated by actuating about the handle axis hA or tangentially to the handle axis hA of the hand-held power tool 11. In this case, an actuating force 29 is exerted on the first actuating element 23 in the circumferential direction about the handle axis hA in order to bring the actuating unit 21 into the actuating state.

The first actuating element 23 is designed as a slide switch and is provided for moving the hand-held power tool 11 or the switching unit 17 by means of a sliding movement of the first actuating element 23. The first actuating element 23 extends parallel to the machine housing 13 in the circumferential direction about the handle axis hA. The first actuating element 23 is mounted pivotably in the circumferential direction about the handle axis hA.

The machine housing 13 of the hand-held power tool 11 has a housing slot 61, which is provided for receiving the actuating unit 21. The machine housing 13 delimits the housing slot 61 in a plane by 360 °. The housing slot 61 is provided for the movable mounting and mounting of the first actuating element 23 in such a way that the first actuating element 23 extends from the inside to the outside of the machine housing 13. The first actuating element 23 is arranged in a housing slot 61 in the machine housing 13 and extends through the housing slot 61. The housing slot 61 has an extent in the circumferential direction about the handle axis hA which is at least 40% smaller than the extent of the first actuating element 23 in the circumferential direction about the handle axis hA. The housing slot 61 extends along the first actuating element 23. The housing slot 61 limits the movement of the first operating element 23 in the circumferential direction about the handle axis hA.

The machine housing 13 has a guide unit 63 which is provided for guiding the handling unit 21 along the machine housing 13 in a circumferential direction about the handle axis hA. The guide unit 63 is configured as a guide groove 65 and provided for extending in the circumferential direction. The guide groove 65 is provided for receiving and guiding the manipulation unit 21 in the circumferential direction.

The first actuating element 23 forms a grip region and extends along the grip axis hA by at least 70% relative to the extent of the grip region. The first operating element 23 should be gripped by the operator when required. The first actuating element 23 has a holding region for gripping by an assistant.

The first actuating element 23 extends in the circumferential direction over an angular range of at least 45 ° relative to the handle axis hA.

The first actuating element 23 can be actuated with a left-hand and/or right-hand rotation.

The actuating unit 21 has a spring element (not shown) which is provided for restoring the first actuating element 23 from the actuating state into the release state. The spring element is configured as a tension-compression spring. Of course, other (spring) elements which appear to be expedient to the person skilled in the art and which return the actuating element 23 into the release state are also conceivable.

The first actuating element 23 is configured in such a way that an actuation of the hand-held power tool 11 or of the switching unit 17 can be actuated by a movement along the handle axis hA or in a circumferential direction around the handle axis hA.

The actuating unit 21 has a first actuating element 23 and a second actuating element 25 which is mounted so as to be movable relative to the first actuating element 23, wherein the first actuating element 23 is provided for actuating the second actuating element 25. The second actuating element 25 is covered by the first actuating element 23. The second actuating element 25 is provided for actuating the switching unit 17 by means of a movement of the first actuating element 23.

The second actuating element 25 is coupled to the first actuating element 23 in such a way that a movement of the first actuating element 23 about the handle axis hA leads to a movement of the second actuating element 25 along the handle axis hA (fig. 8 to 9). The switching unit 17 is arranged below the first actuating element 23. The second actuating element 25 is mounted so as to be movable substantially perpendicularly to the actuating direction of the first actuating element 23. The first actuating element 23 is mounted pivotably about a handle axis hA. The second actuating element 25 is mounted so as to be movable in translation. The second actuating element 25 is mounted so as to be movable along the handle axis hA. The first actuating element 23 is arranged parallel to the second actuating element 25.

The actuating unit 21 has a guide unit 63 which is provided for guiding the second actuating element 25 relative to the first actuating element 23. The guide unit 63 has a form-locking element 51 embodied as a form-locking projection 65, which engages into a further form-locking element 51 embodied as a form-locking recess 67. The guide unit 63 is provided for predetermining the relative movement of the second actuating element 25 with respect to the first actuating element 23. The form-locking elevation 65 is arranged on the second actuating element 25. The form-locking recess 67 is arranged on the first actuating element 23. The form-locking recess 67 can be designed in such a way that the actuating unit 21 can be actuated bilaterally, i.e. to the left and to the right, in order to actuate the switching unit 17. For example, the form-locking recess 67 is embodied in the form of an arrow. The form-locking recesses 67 receive the form-locking ridges 65 and guide the form-locking ridges 65 along the form-locking recesses 67. The arrow-shaped form-locking recess 67 has an arrow-tip section and two arrow-arm sections extending outwardly from the arrow-tip section. The arrow arm section is arranged adjacent to the arrow tip section. In the released or rest state of the actuating unit 21, the form-locking projection 65 is arranged in the arrowhead section of the form-locking recess 67 (fig. 8). In the actuated state, the form-locking projection 65 is arranged in one of the arrow-head arm sections of the form-locking recess 67 (fig. 9). Of course, other form-locking recesses 67 which appear to be expedient to the person skilled in the art can also be provided, which enable, for example, a left-handed or right-handed actuation of the first actuating element 23.

The first actuating element 23 has an actuating projection 71 which extends along the entire length of the actuating element 23 and projects in the radial direction. The actuating projection 71 is provided for projecting relative to the machine housing 13 and limiting the movement of the first actuating element 23 in the circumferential direction by: the actuating projection 71 of the actuating element 23 is provided for stopping on actuation or movement of the actuating unit 21 on the machine housing 13 bounding the housing slot 61.

Fig. 10 shows a section through the actuating unit 21, in which, for example, the second actuating element 25 is not required. In this case, a switching unit 17 or a switching element is arranged on each side, which switching element can be actuated when the first actuating element 23 is moved in the circumferential direction about the handle axis hA. The first actuating element 23 is provided for directly contacting the switching unit 17.

In fig. 11 to 14, the actuating unit 21 has a first actuating element 23 and a second actuating element 25 which is mounted so as to be movable relative to the first actuating element 23. The first actuating element 23 is designed as a push button which is provided for actuating the first actuating element 23 in a direction perpendicular to the handle axis hA. The first actuating element 23 is provided for actuating the second actuating element 25, and the second actuating element 25 is in turn provided for actuating the switching unit 17. The first actuating element 23 is arranged parallel to the second actuating element 25 and is mounted so as to be movable in translation.

The second actuating element 25 is mounted so as to be movable in translation relative to the first actuating element 23, substantially parallel to the handle axis hA, for unlocking the actuating unit 21 and for actuating the switching unit 17. The second actuating element 25 is provided for bringing the actuating unit 21 from the locked state into the unlocked state by means of a first translational movement and for switching the switching unit 17 by means of a second translational movement. The first translational movement and the second translational movement are oriented substantially parallel to the first actuating element 23 and the second actuating element 25. The first and second translational movements are oriented substantially along the main direction of extension 9 of the hand-held power tool 11 or along the handle axis hA of the handle region of the hand-held power tool 11.

The first actuating element 23 is provided for actuating the second actuating element 25 by means of a further translational movement in such a way that: the distance of the first actuating element 23 from the second actuating element 25 is reduced. The further translational movement is oriented substantially perpendicular to the first translational movement and/or the second translational movement. The further translational movement is oriented substantially perpendicularly to the main direction of extension of the hand-held power tool 11 or radially to the handle axis hA of the handle region of the hand-held power tool 11.

The first actuating element 23 forms a grip region. The first operating element 23 can be gripped by the hand of the operator.

The actuating unit 21 has a guide unit 63 which is provided for guiding the second actuating element 25 relative to the first actuating element 23. The guide unit 63 has a form-locking element 51 in the form of a form-locking projection, which engages in a further form-locking element 51 in the form of a form-locking recess 67 (fig. 11). The guide unit 63 is provided for predetermining the relative movement of the second actuating element 25 with respect to the first actuating element 23. The form-locking elevation 65 is arranged on the first actuating element 23. The form-locking recess 67 is arranged on the second actuating element 25. The first actuating element 23 has sliding elements 81, 83, which are designed in particular as sliding surfaces and are provided for transmitting the movement of the second actuating element 25 to the first actuating element 23.

The locking element 33 is provided for adjusting the first actuating element 23 in such a way that the actuating unit 21 can be actuated. The locking element 33 is provided for adjusting or displacing the second actuating element 25 relative to the first actuating element 23 by means of a lever action of the locking element 33. The locking element 33 is rotatably mounted and arranged on the first actuating element 23. The locking element 33 is provided for adjusting the second actuating element 25 relative to the first actuating element 23 in translation, substantially parallel to the handle axis hA, by means of a rotational movement of the locking element 33.

The locking element 33 is provided for adjusting the second actuating element 25 relative to the first actuating element 23 in order to release the actuation of the actuating unit 21. The blocking element 33 is provided for moving the first actuating element 23 relative to the second actuating element 25 and releasing the relative movement of the first actuating element 23 relative to the second actuating element 25.

The first actuating element 23 and the second actuating element 25 each have a sliding element 81, 83, which is provided for actuating the switching unit 17 by means of the second actuating element 25. The sliding element 81 is configured as a sliding ridge (fig. 11 to 13) or as a sliding slot 83 (fig. 14). The sliding projection 81 is arranged in the first actuating element 23 or on the first actuating element 23. A sliding notch 83 corresponding to the sliding protrusion 81 is arranged in the second operating element 25 or on the second operating element 25. At least the sliding projection 81 has a ramp surface which is provided for the non-positive predetermination of the movement of the second actuating element 25. The actuating unit 21 has three sliding elements 81 on the first actuating element 23 and a further sliding element 83 on the second actuating element 25, which sliding element corresponds to the sliding element 81 of the first actuating element 23.

The second actuating element 25 is designed as a handwheel (fig. 14). The handwheel has a slide notch 83.

In fig. 14, three first actuating elements 23 are provided, which are designed as actuating knobs and can be actuated individually. The first actuating element 23 can be pressed into the hand-held power tool 11 and the second actuating element 25 can be moved by means of a pressing-in movement. The first actuating element 23 is provided here for adjusting the second actuating element 25 by means of a translational movement substantially perpendicular to the first actuating element 23.

In fig. 14, the first actuating elements 23 each have a rolling element 87, which is provided for actuating the switching unit 17 by means of the second actuating element 25. The second actuating element 25 is designed as a steering wheel and has a plurality of sliding recesses which have a matching shape to the rolling elements 87 for rolling the rolling elements 87.

In the embodiment according to fig. 15 to 18, the actuating unit 21 can be provided for actuating the switching unit 17 by deformation of the actuating unit 21. The actuating unit 21 is at least partially deformable.

The handling unit 21 is arranged in a housing slot 61 of the machine housing 13 and is provided for covering the housing slot 61. The operating unit 21 is provided for operating the switching unit 17 directly.

The actuating unit 21 has a first actuating element 23, which is provided for actuating the switching unit 17 by means of an elastic deformation of the actuating elements 23, 25. The elastic deformation is provided for transmitting a movement to the switching unit 17 in order to operate the switching unit 17.

The actuating unit 21 has three actuating elements 23, 25, which are provided for actuating the switching unit 17 by means of elastic deformation of the actuating unit 21.

The three actuating elements 23, 25 are arranged parallel to one another and are coupled to one another. The first actuating element 23 extends along the grip axis hA by more than 60% relative to the extent of the grip region.

Each actuating element 23, 25 is of elongate and substantially rod-shaped design.

The actuating unit 21 has a form-locking element 51 embodied as a form-locking projection 65, which is provided for interacting with a corresponding form-locking element 51 embodied as a form-locking recess 67. The form-locking element 51 is designed as a form-locking bead 65, which is designed in the form of a circle. The form-locking elevation 65 can be configured in the form of a pin. The corresponding form-locking recess 67 has a cross section which is designed in the form of a slot or an ellipse. The form-locking recess 67 is configured to be inserted into a recess.

The actuating elements 23, 25 are mounted so as to be movable relative to one another. The actuating elements 23, 25 have teeth which couple the movement of the actuating elements 23, 25.

The hand-held power tool 11 has a locking unit 31 which is provided for locking the actuation of the actuation unit 21 in a locked state and releasing the actuation of the actuation unit in an unlocked state.