EP3389950B1 - Hand-held machine tool device - Google Patents

Description

State of the art

Hand-held power tools are known from the prior art which include an operating unit which has an operating element which can be actuated by an operator. The operating element can be designed as a push button, as a pawl and/or as a slide switch. document EP2743020A2 discloses the preamble of claim 1. Other examples are known from US Pat DE102007042221A1 , US2010/206703A1 or WO2014/013474A1 .

Disclosure of Invention

The invention, as set out in claim 1, is based on a hand-held power tool device with at least one operating unit.

It is proposed that the operating unit has at least one operating element that is flexible in terms of shape. In this context, a “handheld power tool device” is to be understood in particular as at least a part, in particular a subassembly, of a handheld power tool. In particular, the hand-held power tool device can also include the entire hand-held power tool. The handheld power tool can be configured as any handheld power tool that is advantageously electrically configured, such as a garden tool, a milling machine, a planer, a drill, a combination hammer, a rotary and/or chisel hammer, a drill, a cordless screwdriver, a rechargeable battery -Drill, as a saw and/or as a grinding machine or the like. In addition, the hand-held power tool device can in particular have at least one housing unit, advantageously designed as a machine housing, which advantageously defines at least one, preferably exactly one, grip area, in particular for holding the hand-held power tool, at least one advantageously at least partially arranged in the housing unit, Electronic unit, at least one drive unit, advantageously at least partially arranged in the housing unit, and/or a control unit, in particular for controlling operation of the hand-held power tool.

Furthermore, an "operating unit" is to be understood in particular as a unit which is arranged in particular on the housing unit and is advantageously in an operative connection with the electronics unit, the drive unit and/or the control unit and which is intended in particular to be dependent on an actuation, a touch and /or at least one, advantageously precisely one, function to be perceived, exercised, triggered and/or to influence and/or change a state of a unit that is operatively connected to the operating unit by entering parameters. For this purpose, the operating unit particularly preferably comprises a plurality of operating elements, in particular at least two, at least three, at least four and/or at least five operating elements, which are advantageously provided to perform and/or trigger the same function. “Provided” should be understood to mean, in particular, specially programmed, designed and/or equipped. The fact that an object is provided for a specific function is to be understood in particular to mean that the object fulfills and/or executes this specific function in at least one application and/or operating state. In this context, the fact that an object “influences” another object is to be understood in particular as meaning that the further object has a different status, a different course, a different quantity and/or a different location if the object is absent and/or inactive , in particular position and/or orientation, and/or assumes it when the object is present and/or active.

Furthermore, a "control element" is to be understood in particular as an element that can be actuated, in particular by an operator, advantageously directly, is advantageously elongated and/or round, and is intended in particular to receive an input variable from the operator during an operating process, and for this purpose advantageously at least one, advantageously precisely one, actuating surface. The control element can be designed as any control element, such as a locking switch, in particular for initiating a locking, in particular optionally, as a changeover switch, in particular for selecting an operating mode, as a release switch, in particular for releasing the drive unit, and/or advantageously as a switch, which is provided in particular, at least in one Switch-on process and/or advantageously to be touched and/or actuated by the operator during operation of the hand-held power tool. The operating element is advantageously designed as a dead man's switch, in particular at least when it is designed as an on switch, and is in particular automatically moved back into an off position, in particular without actuation and/or locking.

In this context, a “control element that is flexible in terms of shape” is to be understood in particular as a control element that has at least two at least partially different, advantageously significantly different, in particular external, shapes and/or can assume at least one operating state. The different external shapes advantageously correspond to different operating positions, advantageously at least one off position and one on position, of the operating element. The control element is preferably activated by means of a control and/or advantageously a stimulus, in particular an external one, that is exerted in particular on the actuating surface, such as a change in temperature, a change in humidity, a change in brightness, a change in conductivity, a change in pressure, a change in capacitance, an electromagnetic field, a voltage in the material and/or advantageously a mechanical force, can be transferred and/or moved from a first shape into at least one, advantageously precisely one, second shape. In particular, the operating element that is flexible in terms of shape is different from a pushbutton and/or slide switch or the like, which can in particular be moved in a translatory manner. The control element that is flexible in shape is advantageously designed as a soft-elastic layer, in particular with or without a harder edge layer. The fact that two shapes are "significantly different" is to be understood in particular as meaning that the contours and/or surface areas of the shapes, especially when viewed in at least one direction, differ by at least 2.5%, advantageously by at least 5%, preferably by at least 7.5% and more preferably at least 10%. A corresponding configuration of the hand-held power tool device can improve flexibility in particular. In particular, an operating element can be positioned particularly flexibly, as a result of which space requirements can be reduced and/or the design of the hand-held power tool can be improved. In this case, in particular, a hand-held power tool device can be provided which can advantageously be adapted to different areas of use and/or can be used in different areas of use. In addition, operational reliability can advantageously be improved. In addition, one can in particular almost space-neutral and advantageously robust control unit can be provided, which can advantageously also be used in existing handheld power tools, in particular without having to make extensive design changes to existing structures. In addition, a service life and/or a fatigue strength can be improved in a particularly advantageous manner and, as a result, maintenance can be facilitated in particular. Furthermore, efficiency, in particular installation space efficiency, component efficiency, manufacturing efficiency and/or cost efficiency, can advantageously be improved.

The operating element preferably has an operating area of at least 3 cm ² , advantageously at least 6 cm ² , preferably at least 8 cm ² and particularly preferably at least 12 cm ² , and is therefore designed in particular as a large-area operating element. In this way, particularly simple actuation of the operating element can be achieved.

It is also proposed that the hand-held power tool device has at least one housing unit, in particular the housing unit already mentioned above, which is advantageously designed as a machine housing and with which the operating element is designed in one piece. In this context, “in one piece” is to be understood as being at least cohesively connected and/or formed with one another. The material connection can be produced, for example, by an adhesive process, an injection molding process, a welding process, a soldering process and/or another process. Advantageously, one-piece from one piece and/or formed in one piece should be understood. This one piece is preferably made from a single blank, a mass and/or a cast, for example in an extrusion process, in particular a single-component and/or multi-component extrusion process, and/or an injection molding process, in particular a single-component and/or multi-component injection molding process. In this way, in particular, a particularly robust and/or cost-effective handheld power tool device can be provided.

If the operating element is integrated flush into the housing unit, a particularly inconspicuous and/or intuitively operable handheld power tool device can be provided. In addition, a particularly space-saving operating unit can advantageously be provided. The phrase "flush integrated" should be understood in particular that the operating element is a part of the housing unit forms and/or continues the housing unit continuously, in particular without forming paragraphs, gaps and/or elevations.

In one embodiment of the invention, it is proposed that the hand-held power tool device has at least one housing unit, in particular the housing unit already mentioned above, which is advantageously designed as a machine housing, the operating element being viewed in at least one cross section through the housing unit over at least 20%, advantageously over at least 40% %, preferably over at least 60% and particularly preferably over at least 80%, of at least one entire continuous circumferential length of the housing unit in the cross section. In this context, it is particularly conceivable that the housing unit, in particular depending on a considered cross section through the housing unit, has exactly one, in particular connected, peripheral element and/or several, in particular separate, peripheral elements. An actuating force for actuating the actuating surface of the operating element, in particular when holding it in the grip area, is particularly preferably at least essentially the same at least at a majority of all points on the actuating surface. The phrase "at least essentially the same" should be understood in particular to mean that an actuating force deviates from an actuating force averaged over the actuating surface by no more than 20%, advantageously by no more than 10%, preferably by no more than 5% and particularly preferably by no more than 2.5% . A "majority of all points" should be understood to mean in particular at least 70%, preferably at least 80% and particularly preferably at least 90% of all points. In this way, particularly simple operation can be achieved, which is advantageously at least essentially independent of a holding position of the hand tool is.

In addition, it is proposed that the hand-held power tool device has at least one housing unit, in particular the aforementioned housing unit, which is advantageously configured as a machine housing, and which defines at least one grip area, in particular the aforementioned grip area, in which the operating element is at least partially, preferably at least a large part and particularly preferably completely. The expression "at least for the most part" is intended to mean in particular at least 55%, advantageously at least 65%, preferably at least 75%, particularly preferably at least 85% and particularly advantageously at least 95% are understood. In this way, in particular, an ergonomically particularly advantageous operation can be achieved.

Furthermore, it is proposed that the operating unit has at least one further operating element, which has a different orientation relative to the operating element. The fact that two operating elements have a “differing orientation” relative to one another is to be understood in particular as meaning that the main extension planes of the operating elements and/or actuating surfaces of the operating elements enclose an angle, in particular a minimum angle, between 0° and 180° and advantageously between 30° and 150° and/or intersect. In particular, the main extension planes of the operating elements and/or actuating surfaces of the operating elements have an orientation relative to one another that differs from a parallel orientation. A "main extension plane" of an object is to be understood in particular as a plane which is parallel to a largest side surface of a smallest, in particular imaginary cuboid, which just completely encloses the object, and advantageously through a center point, in particular a geometric center point, of the cuboid runs. Advantageously, the further operating element is flexible in shape and preferably has an actuating surface of at least 3 cm ² , advantageously at least 6 cm ² , preferably at least 8 cm ² and particularly preferably at least 12 cm ² . The further operating element is particularly advantageously arranged at least partially, preferably at least to a large extent and particularly preferably completely, in the grip area. In this way, in particular, a range of functions of the handheld power tool can be increased and/or operation that is configured at least essentially independently of a holding position of the handheld power tool can be achieved.

A particularly flexible and/or efficient operation can be achieved in particular if the additional control element is designed at least essentially identically to the control element. The phrase "at least essentially identical" is to be understood in particular as identical, apart from manufacturing tolerances, within the scope of manufacturing possibilities and/or within the scope of standardized tolerances.

It is also proposed that the hand-held power tool device has at least one housing unit, in particular the housing unit already mentioned above, which is advantageously designed as a machine housing and which has at least one grip area, in particular the handle area already mentioned above, over which the operating unit extends at least to a large extent and advantageously completely. In particular, the operating unit has exactly one, in particular large-area and/or connected, operating element or advantageously several, in particular separate and/or spaced apart operating elements, in particular at least two, at least three, at least four and/or at least five operating elements, which in particular have are distributed over the handle area. In this way, particularly user-friendly and/or ergonomic operation can be achieved, in particular independently of a holding position of the hand-held power tool and/or a working position of the operator. In addition, advantageously, operation by left-handed and right-handed people can be made equally safe.

The operating unit has at least one pneumatically or hydraulically designed detection unit, as presented in claim 1. Preferably, but not part of the invention, the operating unit has at least one electrically and/or optically designed detection unit, which is provided at least to detect an actuation of the operating element, in particular electrically and/or optically, and advantageously to at least one further unit, in particular the electronics unit, the drive unit and/or the control unit. The detection unit advantageously has at least one operative connection to the electronics unit, the drive unit and/or the control unit. In this way, particularly flexible detection of an actuation can be achieved. In the case of a pneumatic and/or hydraulic design in particular, the influence of electromagnetic fields and/or electromagnetic interference on an operating unit can also advantageously be minimized, as a result of which an advantageously robust and/or durable construction results in particular.

In a further embodiment of the invention, it is proposed that the operating element and the detection unit are designed at least partially in one piece. In this context, an object “is at least partially formed in one piece” with a further object is to be understood in particular as meaning that at least one component of the object and/or the object is in one piece with at least one component of the further object and/or the further object is trained. In this way, in particular, a design that is particularly space-neutral can be achieved.

drawing

Further advantages result from the following description of the drawing. Exemplary embodiments of the invention are shown in the drawing. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into further meaningful combinations.

Fig. 1

eine als Winkelschleifer ausgebildete Handwerkzeugmaschine mit einer Handwerkzeugmaschinenvorrichtung, welche eine Bedieneinheit mit mehreren Bedienelementen umfasst, in einer perspektivischen Darstellung,

Fig. 2

ein erstes Bedienelement und ein zweites Bedienelement der Bedieneinheit in einem ersten Betriebszustand in einer Schnittansicht,

Fig. 3

das erste Bedienelement und das zweite Bedienelement in einem zweiten Betriebszustand in der Schnittansicht gemäß Figur 2,

Fig. 4

ein erstes Bedienelement und ein zweites Bedienelement einer Bedieneinheit einer weiteren Handwerkzeugmaschinenvorrichtung in einem ersten Betriebszustand in einer Schnittansicht,

Fig. 5

das erste Bedienelement und das zweite Bedienelement aus Figur 4 in einem zweiten Betriebszustand in der Schnittansicht gemäß Figur 4,

Fig. 6

ein erstes Bedienelement und ein zweites Bedienelement einer Bedieneinheit einer weiteren Handwerkzeugmaschinenvorrichtung in einem ersten Betriebszustand in einer Schnittansicht,

Fig. 7

ein erstes Bedienelement und ein zweites Bedienelement einer Bedieneinheit einer weiteren Handwerkzeugmaschinenvorrichtung in einem ersten Betriebszustand in einer Schnittansicht,

Fig. 8

eine als Winkelschleifer ausgebildete Handwerkzeugmaschine mit einer weiteren Handwerkzeugmaschinenvorrichtung in einer perspektivischen Darstellung,

Fig. 9

eine als Winkelschleifer ausgebildete Handwerkzeugmaschine mit einer weiteren Handwerkzeugmaschinenvorrichtung in einer perspektivischen Darstellung,

Fig. 10

eine als Winkelschleifer ausgebildete Handwerkzeugmaschine mit einer weiteren Handwerkzeugmaschinenvorrichtung in einer perspektivischen Darstellung,

Fig. 11

eine als Winkelschleifer ausgebildete Handwerkzeugmaschine mit einer weiteren Handwerkzeugmaschinenvorrichtung in einer perspektivischen Darstellung,

Fig. 12

eine als Akku-Schrauber ausgebildete Handwerkzeugmaschine mit einer weiteren Handwerkzeugmaschinenvorrichtung in einer perspektivischen Darstellung,

Fig. 13

eine als Akku-Schrauber ausgebildete Handwerkzeugmaschine mit einer weiteren Handwerkzeugmaschinenvorrichtung in einer perspektivischen Darstellung,

Fig. 14

eine als Akku-Schrauber ausgebildete Handwerkzeugmaschine mit einer weiteren Handwerkzeugmaschinenvorrichtung in einer perspektivischen Darstellung,

Fig. 15

eine als Stichsäge ausgebildete Handwerkzeugmaschine mit einer weiteren Handwerkzeugmaschinenvorrichtung in einer perspektivischen Darstellung,

Fig. 16

eine als Stichsäge ausgebildete Handwerkzeugmaschine mit einer weiteren Handwerkzeugmaschinenvorrichtung in einer perspektivischen Darstellung,

Fig. 17

eine als Stichsäge ausgebildete Handwerkzeugmaschine mit einer weiteren Handwerkzeugmaschinenvorrichtung in einer perspektivischen Darstellung,

Fig. 18

eine als Winkelschleifer ausgebildete Handwerkzeugmaschine mit einer weiteren Handwerkzeugmaschinenvorrichtung, welche eine Bedieneinheit mit genau einem Bedienelement umfasst, in einer perspektivischen Darstellung und

Fig. 19

ein erstes Bedienelement und ein zweites Bedienelement einer Bedieneinheit einer weiteren Handwerkzeugmaschinenvorrichtung in einem ersten Betriebszustand in einer Schnittansicht.

Show it:

1

a hand-held power tool designed as an angle grinder with a hand-held power tool device, which includes an operating unit with several operating elements, in a perspective view,

2

a first operating element and a second operating element of the operating unit in a first operating state in a sectional view,

3

the first control element and the second control element in a second operating state in the sectional view according to figure 2 ,

4

a first operating element and a second operating element of an operating unit of a further handheld power tool device in a first operating state in a sectional view,

figure 5

the first control element and the second control element figure 4 in a second operating state in the sectional view according to figure 4 ,

6

a first operating element and a second operating element of an operating unit of a further handheld power tool device in a first operating state in a sectional view,

7

a first operating element and a second operating element of an operating unit of a further handheld power tool device in a first operating state in a sectional view,

8

a handheld power tool designed as an angle grinder with a further handheld power tool device in a perspective view,

9

a handheld power tool designed as an angle grinder with a further handheld power tool device in a perspective view,

10

a handheld power tool designed as an angle grinder with a further handheld power tool device in a perspective view,

11

a handheld power tool designed as an angle grinder with a further handheld power tool device in a perspective view,

12

a hand-held power tool designed as a cordless screwdriver with a further hand-held power tool device in a perspective view,

13

a hand-held power tool designed as a cordless screwdriver with a further hand-held power tool device in a perspective view,

14

a hand-held power tool designed as a cordless screwdriver with a further hand-held power tool device in a perspective view,

15

a handheld power tool designed as a jigsaw with a further handheld power tool device in a perspective view,

16

a handheld power tool designed as a jigsaw with a further handheld power tool device in a perspective view,

17

a handheld power tool designed as a jigsaw with a further handheld power tool device in a perspective view,

18

a hand-held power tool designed as an angle grinder with a further hand-held power tool device, which comprises an operating unit with exactly one operating element, in a perspective representation and

19

a first operating element and a second operating element of an operating unit of a further handheld power tool device in a first operating state in a sectional view.

Description of the exemplary embodiments

figure 1 shows a handheld power tool 36a in a schematic representation. The hand-held power tool 36a is designed as a grinding machine, in the present case in particular as an angle grinder. The hand-held power tool 36a is designed to be operated by a motor. In the present case, hand-held power tool 36a is designed as an electric hand-held power tool. The hand-held power tool 36a is cable-connected and is therefore, in particular, mains-operated. Alternatively, it is conceivable to design a handheld power tool as any other handheld power tool, such as a rotary hammer, a chisel hammer, a percussion drill, a demolition hammer, a drill, a milling machine, a saw, a cordless screwdriver and/or a garden tool. In addition, it is conceivable for a hand-held power tool to be designed to be cordless and thus, in particular, battery-operated and/or accumulator-operated.

The handheld power tool 36a has a handheld power tool device. The hand-held power tool device includes a housing unit 28a. The housing unit 28a is designed as a machine housing. The housing unit 28a is designed as an outer housing. At least the majority of the components required for operation of the hand-held power tool 36a are arranged within the housing unit 28a. In addition, the housing unit 28a defines a handle area 30a. The grip area 30a is designed as a main grip area. The handle area 30a is arranged on a side of the housing unit 28a facing away from a front area. Grip area 30a is provided at least essentially for holding and/or guiding hand-held power tool 36a

The hand-held power tool device also has a machining unit 38a. The processing unit 38a is arranged in the front area of the housing unit 28a. The processing unit 38a comprises at least one processing tool receptacle, which is provided for receiving an insertion tool 39a is. Alternatively, it is conceivable that a processing unit directly corresponds to a processing tool.

To drive and/or operate the machining unit 38a, the hand-held power tool device includes a drive unit 40a. The drive unit 40a is arranged within the housing unit 28a. The drive unit 40a includes a motor, in the present case in particular an electric motor. The drive unit 40a has at least one operative connection with the processing unit 38a. For this purpose, the drive unit 40a can include further units, such as at least one transmission. Alternatively, it is conceivable to design a drive unit as an internal combustion engine and/or hybrid engine.

For an energy supply, the hand-held power tool device also includes an energy supply unit 42a. In the present case, the energy supply unit 42a is designed as a mains connection. The energy supply unit 42a has an operative connection to the drive unit 40a. The energy supply unit 42a is provided at least to supply the drive unit 40a with energy in at least one operating state. Alternatively, it is also conceivable to design an energy supply unit as a petrol tank, as a fuel cell, as a battery and/or advantageously as an accumulator, in particular as an 18 V and/or 36 V accumulator. In particular, the energy supply unit can in this case be permanently installed in a housing unit, in particular designed as a machine housing, and/or advantageously be designed to be changeable and/or exchangeable.

In addition, the hand-held power tool device comprises further units for operating the hand-held power tool 36a, such as an electronic unit (not shown) and/or a control unit 44a, in particular an electrical one. In the present case, the energy supply unit 42a is provided for supplying energy to the electronics unit and the control unit 44a.

The hand-held power tool device also has an operating unit 10a. The operating unit 10a is arranged on the housing unit 28a. The operating unit 10a extends over a large part of the handle area 30a. In the present case, the operating unit 10a extends over a large part of the housing unit 28a. The operating unit 10a is provided for this purpose, depending on an actuation at least one function to perceive For this purpose, the operating unit 10a comprises at least one operating element 12a, 14a, 16a, 18a. In the present case, the operating unit 10a comprises a plurality of operating elements 12a, 14a, 16a, 18a, in particular eight operating elements 12a, 14a, 16a, 18a, with in figure 1 only four of the controls 12a, 14a, 16a, 18a are shown. The operating elements 12a, 14a, 16a, 18a are elongated. The operating elements 12a, 14a, 16a, 18a each have an actuating surface 20a, 22a, 24a, 26a of at least 3 cm ² . The operating elements 12a, 14a, 16a, 18a are formed in one piece with the housing unit 28a. The operating elements 12a, 14a, 16a, 18a are integrated flush into the housing unit 28a. The operating elements 12a, 14a, 16a, 18a form part of the housing unit 28a. The operating elements 12a, 14a, 16a, 18a are arranged in such a way that they cover at least a large part of the housing unit 28a. A switching force for actuating the operating elements 12a, 14a, 16a, 18a is between 15 N and 50 N and preferably between 25 N and 35 N, so that in particular the operating elements 12a, 14a, 16a, 18a when the hand-held power tool 36a is put down by a Own weight of the hand tool 36a are actuated. In addition, the operating elements 12a, 14a, 16a, 18a in the present case are at least essentially of the same design. The operating elements 12a, 14a, 16a, 18a are flexible in shape. The operating elements 12a, 14a, 16a, 18a consist of an elastic material. In the present case, the operating elements 12a, 14a, 16a, 18a consist of a thermoplastic elastomer (TPE). Alternatively, it is conceivable to design at least one operating element differently. A control element could, for example, be round and/or have any other shape. Furthermore, the control element could, for example, have a configuration that differs from a configuration that is flexible in terms of shape, have an actuating surface of less than 3 cm ² and/or protrude beyond a housing unit and thus in particular not be integrated flush into the housing unit. In addition, an operating unit could have a different number of operating elements, such as exactly one operating element and/or at least four, at least six and/or at least twelve operating elements. It is also conceivable that the operating elements consist at least partially of a material other than a thermoplastic elastomer, such as rubber or the like.

In the present case, the operating unit 10a comprises two groups of operating elements 12a, 14a, 16a, 18a, each of the groups of operating elements 12a, 14a, 16a, 18a having a plurality of, in the present case in particular four, of the operating elements 12a, 14a, 16a, 18a are assigned and the operating elements 12a, 14a, 16a, 18a assigned to the different groups can be actuated selectively and in particular trigger the same function.

A first control element 12a of the control elements 12a, 14a, 16a, 18a is assigned to a first group of the groups of control elements 12a, 14a, 16a, 18a. The first operating element 12a is arranged on a side of the housing unit 28a facing away from the machining unit 38a and/or the insertion tool 39a. The first operating element 12a has a first actuating surface 20a with a surface area of approximately 16 cm ² . The first operating element 12a and/or the first actuating surface 20a extends over at least 25% of a main extension length of the housing unit 28a. In the present case, the first control element 12a and/or the first actuating surface 20a also extends over at most 75% of the main extension length of the housing unit 28a. Furthermore, the first operating element 12a is arranged completely in the grip area 30a. The first control element 12a and/or the first actuating surface 20a extends over at least 90% and preferably over at least 95% of a main extension length of the grip area 30a. The first operating element 12a and/or the first actuating surface 20a also extends in a cross section through the housing unit 28a, in particular the handle area 30a of the housing unit 28a, viewed over at least 20% of an entire circumferential length of the housing unit 28a in the cross section. The first operating element 12a is designed as an on switch. The first control element 12a is intended to be actuated, in particular selectively, by an operator to operate the hand-held power tool 36a. The first operating element 12a has an operative connection with the drive unit 40a. The first operating element 12a is intended to receive an input variable from an operator for controlling the drive unit 40a. In addition, the first operating element 12a is designed as a dead man's switch.

Another first control element 14a of the control elements 12a, 14a, 16a, 18a is assigned to the first group of the groups of control elements 12a, 14a, 16a, 18a. The other first control element 14a is at least essentially identical to the first control element 12a. The additional first control element 14a is arranged at a distance from the first control element 14a. The other first operating element 14a is arranged on a side wall of the housing unit 28a. The other first control element 14a has a different relative to the first control element 12a orientation on. In the present case, a main extension plane of the further first operating element 14a encloses an angle of approximately 90° with a main extension plane of the first operating element 12a. The additional first operating element 14a has an additional first actuating surface 22a with a surface area of approximately 16 cm ² . The additional first control element 14a and/or the additional first actuating surface 22a extends over at least 25% of the main extension length of the housing unit 28a. In the present case, the further first control element 14a and/or the further first actuating surface 22a also extends over at most 75% of the main extension length of the housing unit 28a. Furthermore, the further first control element 14a is arranged completely in the grip area 30a. The additional first control element 14a and/or the additional first actuating surface 22a extends over at least 90% and preferably over at least 95% of the main extension length of the grip area 30a. The additional first control element 14a and/or the additional first actuating surface 22a also extends in a cross section through the housing unit 28a, in particular the handle area 30a of the housing unit 28a, viewed over at least 20% of an entire circumferential length of the housing unit 28a in the cross section. The other first control element 14a is also designed as an on switch. The additional first operating element 14a is intended to be actuated, in particular selectively, by an operator in order to operate the hand-held power tool 36a. The other first operating element 14a has an operative connection to the drive unit 40a. The additional first operating element 14a is provided for receiving an input variable from an operator for controlling the drive unit 40a. In addition, the other first control element 14a is designed as a dead man's switch.

In addition, the operating unit 10a has two further first operating elements assigned to the first group of the groups of operating elements 12a, 14a, 16a, 18a, which are at least essentially identical in design to the first operating element 12a and the further first operating element 14a and on one are arranged on the opposite side of the housing unit 28a to the first operating element 12a and the further first operating element 14a. Accordingly, first control elements 12a, 14a that are at least essentially identical in design and are configured in particular as an on switch and deadman switch are arranged on all sides of grip area 30a, with each of the first control elements 12a, 14a being able to be actuated selectively by an operator to operate handheld power tool 36a. As a result, the hand tool 36a in all holding positions and in particular be operated using a dead man's switch in an ergonomic manner, which can advantageously increase work safety. In addition, advantageously, operation by left-handed and right-handed people can be made equally safe. In addition, particularly in the operating sequence: pick up handheld power tool 36a, hold and switch on, assume working position, hold forces and torques, hold and switch off, put down handheld power tool 36a; enables particularly flexible operation and guarantees work and operating safety.

A second control element 16a of the control elements 12a, 14a, 16a, 18a is assigned to a second group of the groups of control elements 12a, 14a, 16a, 18a. The second operating element 16a is arranged on the side of the housing unit 28a facing away from the machining unit 38a and/or the insertion tool 39a. The second operating element 16a has a second actuating surface 24a with a surface area of approximately 3 cm ² . The second control element 16a and/or the second actuating surface 24a extends over approximately 3% to 5% of the main extension length of the housing unit 28a. Furthermore, the second operating element 16a is arranged outside of the grip area 30a. The second operating element 16a and/or the second actuating surface 24a extends over at least 20% of an entire circumferential length of the housing unit 28a in the cross section, viewed in a cross section through the housing unit 28a. In the present case, the second control element 16a is designed as a release switch and in particular enables two-way switching. The second operating element 16a is intended to be actuated, in particular selectively, by an operator to enable operation of the hand-held power tool 36a. The second operating element 16a is provided for receiving an input variable from an operator for enabling the drive unit 40a.

Another second control element 18a of the control elements 12a, 14a, 16a, 18a is assigned to the second group of the groups of control elements 12a, 14a, 16a, 18a. The other second control element 18a is at least essentially identical to the second control element 16a. The additional second control element 18a is arranged at a distance from the second control element 16a. The other second operating element 18a is arranged on the side wall of the housing unit 28a. The other second control element 18a has a different orientation relative to the second control element 16a. In the present case, a main extension plane of the further second operating element 18a closes with a main extension plane of the second control element 16a an angle of about 90 °. The further second control element 18a has a further second actuating surface 26a with a surface area of approximately 3 cm ² . The additional second control element 18a and/or the additional second actuating surface 26a extends over approximately 3% to 5% of the main extension length of the housing unit 28a. Furthermore, the further second operating element 18a is arranged outside of the grip area 30a. Viewed in a cross section through the housing unit 28a, the further second control element 18a and/or the further second actuating surface 26a extends over at least 20% of an entire circumferential length of the housing unit 28a in the cross section. The further second control element 18a is also designed as a release switch and in particular enables two-way switching. The further second operating element 18a is intended to be actuated, in particular selectively, by an operator to enable operation of the hand-held power tool 36a. The further, second control element 18a is provided for receiving an input variable from an operator for releasing the drive unit 40a.

In addition, operating unit 10a has two further second operating elements assigned to the second group of groups of operating elements 12a, 14a, 16a, 18a, which are designed at least essentially identically to second operating element 16a and the further second operating element 18a and on one are arranged on the opposite side of the housing unit 28a to the second control element 16a and the further second control element 18a. Accordingly, second control elements 16a, 18a that are at least essentially identical in design and in particular in the form of an enable switch are arranged on all sides of housing unit 28a, with each of the second control elements 16a, 18a being able to be actuated selectively by an operator to enable operation of handheld power tool 36a. As a result, the hand-held power tool 36a can be operated in an ergonomic manner in all holding positions.

Alternatively, however, it is also conceivable to design control elements and/or actuating surfaces of the control elements of a group of control elements in one piece and/or to provide only one, in particular large-area, control element. In addition, each group of controls could include a different number of controls. It is also conceivable to do without operating elements configured as enabling switches, to design operating elements configured as enabling switches with a different feel and/or to have an operating element configured as an on switch to operate in a different direction. In addition, different groups of operating elements could be completely dispensed with. Furthermore, it is conceivable to design at least one operating element as a locking switch and/or changeover switch. In this context, it is also conceivable that an operating element can be provided for triggering a plurality of functions. Different functions, such as a lock switch function and a dead man's switch function, can be activated, for example, by means of a sequence of multiple actuations of the operating element and/or multiple operating elements in a predetermined period of time, a magnitude of an operating force acting on the operating element, a movement, for example of at least one finger of an operator , in particular on an actuating surface, or the like.

The following will now refer to the Figures 2 and 3 an operation of the first control element 12a and the second control element 16a is described in more detail, with the following description being applicable to the other control elements 14a, 18a, in particular because the design of the control elements 12a, 14a, 16a, 18a is at least essentially identical. the Figures 2 and 3 show an example of the first control element 12a and the second control element 16a in two operating states in a lateral sectional view.

The first control element 12a and the second control element 16a are designed as flexible control elements and in particular have at least two significantly different external shapes (cf. also Figures 2 and 3 ). A first outer shape corresponds to a first operating position and a second outer shape to a second operating position of the operating elements 12a, 16a.

In the present case, the second operating element 16a is, when actuated by means of a mechanical force, at least from the first operating position, in the present case in particular a blocked position (cf. figure 2 ) into the second operating position, in the present case in particular a release position (cf. figure 3 ) movable. In the second operating position of the second operating element 16a, the handheld power tool 36a is released, as a result of which the drive unit 40a can be activated.

In addition, the first operating element 12a is at least from the first operating position, in the present case in particular, when it is actuated by means of a mechanical force an off position (cf. figure 2 ) into the second operating position, in the present case in particular an on position (cf. figure 3 ) movable. In the second operating position of the first operating element 12a, the drive unit 40a is actuated in at least one operating state, in particular upon release and/or, in particular briefly, after a release.

To detect the actuation of the operating elements 12a, 16a, the operating unit 10a comprises at least one detection unit 32a, 34a. In the present case, the operating unit 10a comprises a plurality of detection units 32a, 34a, with each of the operating elements 12a, 16a being assigned precisely one of the detection units 32a, 34a. The detection units 32a, 34a are designed to be at least essentially identical to one another. The detection units 32a, 34a are designed hydraulically. The detection units 32a, 34a are provided to hydraulically detect an actuation of the associated operating element 12a, 16a.

For this purpose, the detection units 32a, 34a each have at least one sensor element 50a, 52a. The sensor elements 50a, 52a are designed as hydraulic-electric switches. In addition, the detection units 32a, 34a each comprise a detection element 46a, 48a, in the present case in particular designed as a detection fluid, such as for example gel, oil or the like. In this case, the detection elements 46a, 48a advantageously correspond to electrically non-conductive liquids, as a result of which, in particular, electrical safety can be maintained. The detection elements 46a, 48a are each arranged between the respective control element 12a, 16a and the respective sensor element 50a, 52a. The detection elements 46a, 48a are each provided to forward an actuation and/or a pressure exerted on the respective actuation surface 20a, 24a of the operating elements 12a, 16a, in the present case in particular via a fluid line, to the sensor elements 50a, 52a. In the present case, the sensor elements 50a, 52a are each intended to sense an actuation of the assigned operating element 12a, 16a by means of a pressure increase in the detection element 46a, 48a designed as a detection fluid and to convert it into an electrical signal, in particular for enabling and/or activating the drive unit 40a to walk. Alternatively, it is conceivable to design detection units of different operating elements differently. It is also conceivable that an operating unit has precisely one detection unit, in particular for all operating elements, and/or at least one detection unit for at least two, at least three and/or at least four operating elements. In addition, a detection unit could be pneumatic be formed, in particular air and / or any other gas can be used as a detection fluid. In addition, a detection unit could be embodied at least partially electrically and/or optically. It is also conceivable that a control unit can be provided to switch a detection unit to inactive in at least one operating state, for example by removing a detection element and/or blocking a sensor element, as a result of which actuation of an associated operating element can be prevented in the operating state and in particular in the If the detection element is removed, it can also be signaled to a user, in particular optically and/or haptically. In addition, it is conceivable to vary a pressure point and/or switching point of operating elements, in particular by means of a change in pressure of a detection fluid.

In the Figures 4 to 19 further exemplary embodiments of the invention are shown. The following description and the drawings are essentially limited to the differences between the exemplary embodiments, with regard to components having the same designation, in particular in relation to components with the same reference symbols, also to the drawings and/or the description of the other exemplary embodiments, in particular the Figures 1 to 3 , can be referenced. To distinguish between the exemplary embodiments, the letter a is the reference number of the exemplary embodiment in FIGS Figures 1 to 3 adjusted. In the embodiments of Figures 4 to 18 the letter a is replaced by the letters b through p.

In the Figures 4 and 5 another embodiment of the invention is shown. The embodiment of Figures 4 and 5 is followed by the letter b. The other embodiment of Figures 4 and 5 differs from the previous exemplary embodiment at least essentially by a detection unit 32b, 34b of an operating unit 10b.

In the present case, detection units 32b, 34b are designed optically. The detection units 32b, 34b are therefore provided to optically detect an actuation of an associated operating element 12b, 16b.

For this purpose, the detection units 32b, 34b each comprise a detection element 46b, 48b designed as a light guide, in particular for light. Furthermore, sensor elements 50b, 52b are embodied as light sensors and in particular are each provided for actuating the associated operating element 12b, 16b by means of damping of the light in the detection element 46b, 48b and to convert it into an electrical signal.

In the present case, the effect is used that when the light is reflected within the respective detection element 46b, 48b, a half-wave of a sine wave of the light exits the detection element 46b, 48b at least temporarily. If an absorbent material, in the present case in particular the respective control element 12b, 16b, which consists in particular of a plastic, in particular a soft one, is brought into contact with the respective detection element 46b, 48b, this results in a weakening of a measurable light intensity and thus in particular an attenuation of the light.

In figure 6 another embodiment of the invention is shown. The embodiment of figure 6 is followed by the letter c. The other embodiment of figure 6 differs from the previous exemplary embodiments at least essentially by a detection unit 32c, 34c of an operating unit 10c.

In the present case, the detection units 32c, 34c are each formed at least partially in one piece with associated operating elements 12c, 16c.

In the present case, a detection element 46c, 48c is formed in one piece with the operating elements 12c, 16c. In addition, the detection units 32c, 34c each include a plurality of sensor elements 50c, 52c, in the present case designed in particular as pressure sensors. In the present case, a first detection unit 32c, which is assigned in particular to a first operating element 12c, comprises at least five first sensor elements 50c. Furthermore, a second detection unit 34c, which is assigned in particular to a second operating element 16c, comprises at least two second sensor elements 52c.

In figure 7 another embodiment of the invention is shown. The embodiment of figure 7 is followed by the letter d. The other embodiment of figure 7 differs from the previous exemplary embodiments at least essentially by a detection unit 32d, 34d of an operating unit 10d.

In the present case, detection units 32d, 34d are at least partially magnetic. The detection units 32d, 34d are therefore provided to detect an actuation of an associated operating element 12d, 16d by means of a change in a magnetic field size. For this purpose, detection elements 46d, 48d of the detection units 32d, 34d consist of a plastic, in particular an elastic plastic, to which magnetic particles have been added. In addition, sensor elements 50d, 52d are designed as magnetic sensors. The sensor elements 50d, 52d are each provided to sense an actuation of the associated control element 12d, 16d by means of a change in the magnetic field size through the detection elements 46d, 48d and to convert it into an electrical signal.

In figure 8 another embodiment of the invention is shown. The embodiment of figure 8 is followed by the letter e. The other embodiment of figure 8 differs from the previous exemplary embodiments at least essentially by an arrangement of operating elements 12e, 14e, 16e, 18e of an operating unit 10e.

In the present case, a further first operating element 14e is arranged at least partially on a side wall of a housing unit 28e, in particular a handle area 30e. In addition, the further first operating element 14e is arranged at least partially on a side of the housing unit 28e facing a machining unit 38e and/or an insertion tool 39e.

In figure 9 another embodiment of the invention is shown. The embodiment of figure 9 is followed by the letter f. The other embodiment of figure 9 differs from the previous exemplary embodiments at least essentially by an arrangement and a number of operating elements 12f, 14f, 16f, 18f of an operating unit 10f.

In the present case, the operating unit 10f comprises fourteen operating elements 12f, 14f, 16f, 18f, with at least ten of the operating elements 12f, 14f, 16f, 18f being arranged in a handle area 30f of a housing unit 28f.

A first control element 12f and/or a first actuating surface 20f extends over at least 10% and at most 40% of a main extension length of the housing unit 28f. In the present case, the first operating element 12f extends and/or the first actuating surface 20f over approximately 20% of the main extension length of the housing unit 28f. In addition, the first operating element 12f and/or the first actuating surface 20f extends over at least 5% and at most 30% of a main extension length of the grip area 30f. In the present case, the first control element 12f and/or the first actuating surface 20f extends over approximately 25% of the main extension length of the grip area 30f. The same applies to a further first operating element 14f and to further operating elements arranged in the handle area 30f.

In figure 10 another embodiment of the invention is shown. The embodiment of figure 10 is followed by the letter g. The other embodiment of figure 10 differs from the previous exemplary embodiments at least essentially by an arrangement and a number of operating elements 12g, 14g, 16g, 18g of an operating unit 10g.

In the present case, a first control element 12g extends annularly around a housing unit 28g and in particular a handle area 30g of the housing unit 28g. Thus, viewed in at least one cross section through the housing unit 28g, the first operating element 12g extends over an entire continuous circumferential length of the housing unit 28g in the cross section. In addition, a further first operating element 12g is offset parallel and/or longitudinally offset to the first operating element 12g in the direction of a side of the housing unit 28g facing away from a front region.

In figure 11 another embodiment of the invention is shown. The embodiment of figure 11 is followed by the letter h. The other embodiment of figure 11 differs from the previous exemplary embodiments at least essentially by an arrangement and a number of operating elements 12h, 14h of an operating unit 10h.

In the present case, the operating elements 12h, 14h of the operating unit 10h are distributed unevenly over a housing unit 28h and in particular a handle area 30h.

In the Figures 12 to 14 further exemplary embodiments of the invention are shown. The exemplary embodiments Figures 12 to 14 are followed by the letters i to k. The other embodiments of Figures 12 to 14 differs from the previous exemplary embodiments at least essentially in the configuration of a hand-held power tool 36i, 36j, 36k as a cordless screwdriver.

In the Figures 15 to 17 further exemplary embodiments of the invention are shown. The exemplary embodiments Figures 15 to 17 are followed by the letters I to n. The other embodiments of Figures 15 to 17 differs from the previous exemplary embodiments at least essentially in the configuration of a hand-held power tool 36I, 36m, 36n as a jigsaw.

In figure 18 another embodiment of the invention is shown. The embodiment of figure 18 is followed by the letter o. The other embodiment of figure 18 differs from the previous exemplary embodiments at least essentially by the configuration of a control element 12o of a control unit 10o.

In the present case, the operating unit 10o includes exactly one operating element 12o. The operating element 12o is designed as an on switch. The operating element 12o is also designed as a dead man's switch. The operating element 12o is designed as an elevation relative to a housing unit 28o. The operating element 12o is also arranged outside of a grip area 30o of the housing unit 28o. Viewed in at least one cross section through the housing unit 28o, the operating element 12o extends over an entire continuous circumferential length of the housing unit 28o in the cross section. The operating element 12o can thus be actuated from a large number of different directions. An actuating force for actuating an actuating surface 20o of the operating element 12o, in particular when holding it in the grip area 30o, is at least essentially the same at least at a majority of all points on the actuating surface 20o.

In order to detect an actuation of the operating element 12o, the operating unit 10o also includes a pneumatically designed detection unit 32o. The detection unit 32o is provided to pneumatically detect an actuation of the operating element 12o. For this purpose, the detection unit 32o comprises a sensor element 50o embodied as a pneumatic-electric switch and a detection element 46o, such as air and/or a any other gas. Alternatively, however, it is also conceivable to design a detection unit hydraulically and a detection element as an electrically non-conductive liquid, such as gel and/or oil, whereby a defined pressure point can advantageously be achieved. In addition, it is conceivable to provide a further operating element which is advantageously at least essentially identical to the operating element, for example designed as a release switch and/or locking switch, as a result of which a switch-on lock can be implemented in particular. If the control element and the further control element can be actuated pneumatically and/or hydraulically, it is particularly conceivable to implement a switch-on logic for enabling and/or unlocking a drive unit by means of valves and/or a valve system. In this case, for example, a valve can only forward pressure from an operating element designed as an on switch when it has been enabled by an operating element designed as a release switch.

In figure 19 another embodiment of the invention is shown. The embodiment of figure 19 is followed by the letter p. The other embodiment of figure 19 differs from the previous exemplary embodiments at least essentially by the configuration of operating elements 12p, 16p of an operating unit 10p.

In the present case, the operating elements 12p, 16p are formed at least essentially as sensory layers and in particular in one piece with detection units 32p, 34p. Each of the operating elements 12p, 16p has at least two at least partially different external shapes, with contours and/or surface areas of the shapes differing from one another by approximately 1%, in particular when the operating elements 12p, 16p are actuated.

Claims (11)

1. Hand-held power tool device having at least one operator control unit (10a-p), wherein the operator control unit (10a-p) has at least one dimensionally flexible operator control element (12a-p; 14a, 14en; 16a-g, 16i, 16j, 161-n, 16p; 18a, 18e-g, 18j, 18m, 18n), characterized in that the operator control unit has at least one pneumatically or hydraulically configured detection unit, which is intended to pneumatically or hydraulically sense actuation of the operator control unit and advantageously pass it on to at least one further unit, in particular an electronic unit, a drive unit (40a) and/or a control unit (44a).
2. Hand-held power tool device according to Claim 1, characterized in that the operator control element (12a-p; 14a, 14e-n; 16a-g, 16i, 16j, 161-n, 16p; 18a, 18e-g, 18j, 18m, 18n) has an actuation face (20a, 20f, 20o; 22a; 24a; 26a) with an area of at least 3 cm².
3. Hand-held power tool device according to Claim 1 or 2, characterized by at least one housing unit (28a, 28e-o) with which the operator control element (12a-p; 14a, 14e-n; 16a-g, 16i, 16j, 161-n, 16p; 18a, 18e-g, 18j, 18m, 18n) is formed in one piece.
4. Hand-held power tool device according to Claim 3, characterized in that the operator control element (12a-n, 12p; 14a, 14e-n; 16a-g, 16i, 16j, 161-n, 16p; 18a, 18e-g, 18j, 18m, 18n) is integrated into the housing unit (28a, 28e-n) in a flush manner.
5. Hand-held power tool device according to one of the preceding claims, characterized by at least one housing unit (28a, 28e-o), wherein the operator control element (12a-p; 14a, 14e-n; 16a-g, 16i, 16j, 161-n, 16p; 18a, 18e-g, 18j, 18m, 18n) extends, as seen in at least one cross section through the housing unit (28a, 28e-o), along at least 20% of at least a total coherent circumferential length of the housing unit (28a, 28e-o) in the cross section.
6. Hand-held power tool device according to one of the preceding claims, characterized by at least one housing unit (28a, 28e-o) which defines at least one handle region (30a, 30e-o) in which the operator control element (12a-p; 14a, 14e-n) is at least partially arranged.
7. Hand-held power tool device according to one of the preceding claims, characterized in that the operator control unit (10a-n, 10p) has at least one further operator control element (12a-n, 12p; 14a, 14e-n; 16a-g, 16i, 16j, 161-n, 16p; 18a, 18e-g, 18j, 18m, 18n), which has a divergent orientation relative to the operator control element (12a-n, 12p; 14a, 14en; 16a-g, 16i, 16j, 161-n, 16p; 18a, 18e-g, 18j, 18m, 18n).
8. Hand-held power tool device according to Claim 7, characterized in that the further operator control element (12a-n, 12p; 14a, 14e-n; 16a-g, 16i, 16j, 161-n, 16p; 18a, 18e-g, 18j, 18m, 18n) is formed at least substantially identically to the operator control element (12a-n, 12p; 14a, 14e-n; 16a-g, 16i, 16j, 161-n, 16p; 18a, 18e-g, 18j, 18m, 18n).
9. Hand-held power tool device according to one of the preceding claims, characterized by at least one housing unit (28a, 28e-n) which defines at least one handle region (30a, 30e-n) over at least a majority of which the operator control unit (10a-n, 10p) extends.
10. Hand-held power tool device according to Claim 1, characterized in that the operator control element (12c, 12d, 12p; 16c, 16d, 16p) and the detection unit (32c, 32d, 32p; 34c, 34d, 34p) are formed at least partially in one piece.
11. Hand-held power tool (36a, 36i-o) having at least one hand-held power tool device according to one of the preceding claims.

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