Hand-held power tool with an activation unit

Abstract

The invention relates to a hand-held power tool, in particular a screwdriver, having an elongate housing in which a drive unit having at least one drive motor is arranged for driving a tool receptacle, wherein the tool receptacle is configured for receiving an insert tool, and an activation unit for activating the drive motor, wherein activation of the drive motor is effected by loading of an insert tool arranged in the tool receptacle, in particular against a workpiece to be machined, along a longitudinal axis of the hand-held power tool, the activation unit having a motor switch arranged in the region of the tool receptacle and a manipulation element arranged on the periphery of the tool receptacle for manipulating the motor switch, wherein the tool receptacle has an inner receptacle facing the drive motor for receiving a spring element belonging to the activation unit, which, by loading of the tool receptacle, loads the manipulation element in a direction away from the drive motor for deactivating the drive motor.

Description

Technical Field

[0001] The present invention relates to a handheld machine tool, particularly a screwdriver, comprising: an elongated housing in which a drive unit having at least one drive motor is arranged for driving a tool receiving section, wherein the tool receiving section is configured to receive an insert tool; and an activation unit for activating the drive motor, wherein the drive motor is activated by loading the insert tool, arranged in the tool receiving section, particularly along the longitudinal axis of the handheld machine tool, against a workpiece to be processed. Background Technology

[0002] A handheld machine tool with a lever-type screwdriver configuration is known from existing technology. This lever-type screwdriver has a drive motor within its housing for driving the associated tool receiving section. The drive motor is activated, or rather, the switching element associated with the drive motor is activated, by loading an insert tool arranged in the tool receiving section against the workpiece to be processed. This switching element is located in the area of ​​the drive motor, and in order to activate the drive motor, the entire drive unit must be moved along the longitudinal axis of the handheld machine tool. Summary of the Invention

[0003] This invention relates to a handheld machine tool, particularly a screwdriver, comprising: an elongated housing in which a drive unit having at least one drive motor is arranged for driving a tool receiving section, wherein the tool receiving section is configured to receive an insert tool; and an activation unit for activating the drive motor, wherein activation is achieved by loading the insert tool, arranged in the tool receiving section, against a workpiece to be processed, particularly along the longitudinal axis of the handheld machine tool. The activation unit has a motor switch arranged in the area of ​​the tool receiving section and an operating element arranged on the outer periphery of the tool receiving section for operating the motor switch. The tool receiving section has an inner receiving section facing the drive motor for receiving a spring element associated with the activation unit. By loading the tool receiving section, the spring element loads the operating element in a direction away from the drive motor, thereby deactivating the drive motor.

[0004] Therefore, the present invention can provide a handheld machine tool in which a compact activation unit can be provided by arranging a spring element associated with the activation unit in the inner receiving part of the tool receiving part.

[0005] Preferably, by loading the tool receiving part, the spring element can be compressed in the direction of the drive motor, so that the motor switch can be released or operated by the operating element and thus the drive motor can be activated.

[0006] Therefore, the activation of the drive motor can be achieved in a simple way.

[0007] The tool receiving section preferably has a torque connector on its outer periphery in the region of the inner receiving section.

[0008] Therefore, handheld machine tools with torque connectors can be easily and without complexity provided.

[0009] According to one embodiment, the torque connector has an adjusting sleeve for adjusting a pre-given torque and a spring retaining ring, wherein the adjusting sleeve is directly connected to the spring retaining ring via an engagement portion.

[0010] Therefore, it is possible to achieve an arrangement that reduces the structural space of the torque connector.

[0011] Preferably, the tool receiving part has a support element on its outer periphery, wherein the operating element abuts against the support element and is axially secured by means of a safety element.

[0012] Therefore, it is possible to achieve a reliable and stable arrangement of the control elements on the outer periphery of the tool receiving part.

[0013] The drive unit preferably has a transmission device, especially a planetary gear transmission device, and the transmission device is arranged in a transmission device housing, wherein the end face of the transmission device housing facing the tool receiving part serves as the axial contact surface of the operating element when the drive motor is not in use.

[0014] Therefore, a stable and reliable arrangement of the control elements in a handheld machine tool can be achieved in a simple manner.

[0015] According to one embodiment, the transmission device has a driven element, wherein the driven element is inserted into the inner receiving portion of the tool receiving portion.

[0016] Therefore, it is possible to reliably and uncomplicatedly arrange the spring element on the driven element in the inner receiving part.

[0017] Preferably, the tool receiving part is configured to be axially movable relative to the driven element.

[0018] Therefore, the activation and deactivation of the drive motor can be achieved in a simple way by moving the tool receiving part relative to the drive motor.

[0019] Preferably, the driven element has an inner receiving portion for receiving a spring element, wherein the spring element is arranged between the driven element, particularly its inner receiving portion, and the tool receiving portion, particularly its inner receiving portion.

[0020] Therefore, a reliable arrangement of spring elements can be achieved, which can provide a compact drive unit.

[0021] The transmission device preferably has at least one bearing element for rotatably supporting the tool receiving part, wherein the bearing element is arranged between the tool receiving part and the transmission device housing.

[0022] Therefore, it is possible to achieve safe and reliable operation of handheld machine tools, especially the tool receiver for driving insert tools.

[0023] According to one embodiment, the activation unit has a circuit board arranged in a region on the end side of an elongated housing, wherein a motor switch is arranged on the circuit board and configured as a motor circuit breaker, wherein a spring element loads an actuating element against the motor circuit breaker via a loading tool receiving portion for disabling the drive motor.

[0024] Therefore, the safe and reliable shutdown of the handheld machine tool can be achieved by continuously operating the motor circuit breaker. This shutdown can be completed in a simple manner by loading the tool receiving unit and thus loading the operating element away from the motor circuit breaker.

[0025] According to another embodiment, the motor switch is arranged on the end face of the transmission housing, which faces the first axial end of the housing.

[0026] Therefore, it is possible to implement an alternative arrangement of motor switches in handheld machine tools in a simple way.

[0027] Preferably, the motor switch is configured as a motor circuit breaker, wherein a spring element loads the operating element in a direction away from the direction pointed by the motor circuit breaker via a loading tool receiving part, for disabling the drive motor.

[0028] Therefore, it is possible to permanently disable the handheld machine tool without operating the motor circuit breaker, and this disabling can be achieved simply by loading the tool receiving unit and thus loading the operating element against the motor circuit breaker. Attached Figure Description

[0029] The invention is described in detail below with reference to embodiments shown in the accompanying drawings. The drawings show:

[0030] Figure 1 A side view of a handheld machine tool according to the present invention.

[0031] Figure 2 : Figure 1 A schematic diagram of a handheld power tool, which includes a circuit board.

[0032] Figure 3 : Figure 1 and Figure 2 A schematic diagram of a handheld machine tool, which has a circuit board according to another embodiment.

[0033] Figure 4 : Figures 1 to 3 A schematic diagram of a handheld machine tool with an alternative circuit board.

[0034] Figure 5 Assigned to Figures 1 to 4 An exploded perspective view of the tool receiving section of a handheld machine tool, which includes an associated activation unit.

[0035] Figure 6 : The longitudinal section of the drive unit of the handheld machine tool in the activated state.

[0036] Figure 7 : In the disabled state Figure 6 An enlarged view of the longitudinal section of the drive unit.

[0037] Figure 8 : In active state Figure 6 and Figure 7 An enlarged view of the longitudinal section of the drive unit, which has a torque coupler.

[0038] Figure 9 : In the disabled state Figure 6 and Figure 7 An enlarged view of the longitudinal section of the drive unit, which has Figure 8 Torque connector,

[0039] Figure 10 : Figures 1 to 9 A schematic diagram of a handheld power tool, which has a motor switch located in another position and associated with the activation unit.

[0040] Figure 11 : Figure 6 and Figure 7 An enlarged view of the longitudinal section of the drive unit, which is located at... Figure 10 When the motor switch is off, and

[0041] Figure 12 :exist Figure 10 and Figure 11 The motor switch is in the active state Figure 11 An enlarged view of the longitudinal section.

[0042] In the accompanying drawings, elements with the same or similar functions are given the same reference numerals and are described in detail only once. Detailed Implementation

[0043] Figure 1 An exemplary handheld power tool 100 is shown, which schematically has an elongated housing 110. Thus, through the elongated housing 110, the handheld power tool 100 is exemplary constructed in a so-called "bar shape".

[0044] Preferably, the handheld power tool 100 is configured as a screwdriver, particularly a lever screwdriver. According to one embodiment, the handheld power tool 100 is mechanically and electrically connected to a power supply unit 150 so as to operate independently of the mains power supply. Preferably, the power supply unit 150 is configured as a battery pack.

[0045] At least one drive motor 140 for driving the tool receiving section 120 is preferably arranged in the elongated housing 110. The tool receiving section 120 is preferably equipped with an inner receiving section 125 for receiving insertable tools 190, such as screwdriver bits or drill bits.

[0046] The elongated housing 110 preferably has a cylindrical base with a first axial end 101 and an opposing second axial end 102, wherein a tool receiving portion 120 is exemplarily arranged in the region of the first axial end 101. Illustrated, a longitudinal direction 105 of the elongated housing 110 is formed between the first and second axial ends 101, 102. The tool receiving portion 120 is preferably equipped with a rotation axis 129. Furthermore, the elongated housing 110 has a circumferential direction 106.

[0047] exist Figure 1 In the illustrated handheld power tool 100, the tool receiver 120, drive motor 140, and housing 110 having a handle area 115 and a cover 117 are arranged along a common axis of rotation, preferably axis of rotation 129, of the tool receiver 120. Preferably, all components of the handheld power tool 100 are arranged within the elongated housing 110. Therefore, the battery pack 150 is also preferably arranged within the housing 110, as is preferred in handheld power tools with a pistol-shaped housing, where the battery pack is arranged perpendicular to the drive motor, as is well known in the prior art.

[0048] Furthermore, a slide switch 170 is preferably provided, which is arranged on the housing 110 for activating the reversible operation of the drive motor 140. Similarly, the housing 110 preferably has a torque adjusting sleeve 130 on its axial end 101. In addition, a cover 117 is preferably arranged on the axial end 102 of the elongated housing 110 away from the tool receiving portion 120.

[0049] According to one embodiment, an activation unit 189 is provided to activate the drive motor 140 by loading the tool receiving portion 120 against the workpiece to be processed, or by loading an insert tool 190 arranged or received in the tool receiving portion 120. Preferably, the tool receiving portion 120 or the insert tool 190 is loaded against the workpiece to be processed along the longitudinal direction 105, thereby applying a corresponding axial load, i.e., a loading in the axial direction, to the tool receiving portion 120. Preferably, a loading of at least 0.1 Nm, particularly axial, on the tool receiving portion 120 activates the drive motor 140. Generally, in this specification, the term "axial" or "in the axial direction" should be understood as the direction along the longitudinal direction 105 of the housing 110, particularly the direction coaxial with or parallel to the rotation axis 129 of the tool receiving portion 120.

[0050] The activation unit 189 is preferably arranged along the longitudinal axis 128 between the drive motor 140 and the first axial end 101 or end side 103 of the housing 110. The longitudinal axis 128 corresponds schematically to the rotation axis 129. Here, the drive motor 140 is preferably activated by moving the tool receiving portion 120 along the longitudinal axis 128 of the handheld machine tool 100. For this purpose, the activation unit 189 has a motor switch 185 arranged in the area of ​​the tool receiving portion 120. Preferably, the motor switch 185, preferably configured as a motor circuit breaker 200, is arranged on or in the area of ​​the end side 103 of the housing 110. Furthermore, the tool receiving portion 120 is preferably equipped with an operating element 230 for operating the motor switch 185. Figure 2 (230 in the middle).

[0051] Preferably, the motor circuit breaker 200 is arranged between the drive motor 140 and the end side 103. The motor switch 185, or motor circuit breaker 200, is preferably associated with the activation unit 189. Preferably, the actuating element (…) is activated by a spring element 180. Figure 2 (230) is loaded against the motor circuit breaker 200 in a direction 199 away from the direction pointed to by the drive motor 140, thereby stopping the drive motor 140.

[0052] Preferably, the spring element 180 can be compressed by loading the tool receiving portion 120 in the direction toward the drive motor 140, i.e., in the direction 198 toward the drive motor 140. Here, by manipulating the element ( Figure 2 (230) releases the motor circuit breaker 200 and thus activates the drive motor 140. When the tool receiving section 120 is loaded against the workpiece to be processed or the insert tool 190 arranged in the tool receiving section 120, the operating element ( Figure 2 (230) is preferably spaced apart from the motor circuit breaker 200 and activates the drive motor 140.

[0053] Figure 2Show Figure 1 The handheld power tool 100 has a drive unit 220. The drive unit 220 has at least a drive motor 140. According to one embodiment, the drive unit 220 is equipped with a transmission device 210. Preferably, the transmission device 210 is configured as a planetary gear transmission.

[0054] also, Figure 2 The spring element 180 is shown to be arranged between the transmission device 210 and the tool receiving portion 120. In particular, the spring element 180 is arranged in the inner receiving portion 520 of the tool receiving portion 120. Preferably, the spring element 180 is constructed as a helical spring.

[0055] As illustrated, the activation unit 189 is arranged between the insert tool 190 and the tool receiving portion 120. The activation unit 189 has a circuit board 240 on which the motor circuit breaker 200 is disposed. Furthermore, the activation unit 189 is equipped with an operating element 230 for operating the motor switch 185, or motor circuit breaker 200. The operating element 230 is preferably arranged on the outer periphery of the tool receiving portion 120. Figure 5 The circuit board 240 is preferably fixed to the housing 110 and preferably arranged in the region of the end side 103 of the elongated housing 110. In particular, the circuit board 240 is preferably connected to control electronics 250 for controlling the drive motor 140. The control electronics 250 is preferably arranged spaced apart from the circuit board 240. In particular, the control electronics 250 is preferably arranged in the region of the drive motor 140 on the side facing the second axial end 102 of the housing 110.

[0056] Figure 3 Show Figure 2 A handheld power tool 100 has a drive unit 220, wherein a circuit board 240 is schematically equipped with LEDs 310. Preferably, the LEDs 310 are configured to provide illumination for the work area. For this purpose, the LEDs 310 are exemplarily arranged on one side of the circuit board 240 facing the end side 103 of the housing 110.

[0057] Figure 4 Show Figure 2 and Figure 3 The handheld power tool 100 includes a drive unit 220, wherein a circuit board 240 is preferably equipped with at least one sensor 410. Preferably, the at least one sensor 410 is configured for spacing measurement, speed measurement, and / or torque measurement. Here, the at least one sensor 410 is preferably arranged on the side of the circuit board 240 facing the end side 103 of the housing 110. It should be noted that the circuit board 240 may alternatively also have... Figure 3 LED 310 and at least one sensor 410.

[0058] Figure 5 Show Figures 1 to 4 The tool receiver 120 of the handheld power tool has an activation unit 189. The tool receiver 120 is illustrated to have a cylindrical base having a design for receiving... Figures 1 to 4 The tool receiving portion 125 is an insertable tool 190. Furthermore, the tool receiving portion 120 has an outer periphery 582 for arranging the operating element 230. Additionally, the tool receiving portion 120 preferably has a support element 580 on its outer periphery 582. The support element 580 is preferably constructed as a surrounding flange, however, it may also be constructed only in sections, for example, as a tab on the outer periphery 582. In particular, the support element 580 is preferably integrally constructed with the tool receiving portion 120.

[0059] The support element 580 is preferably configured to support the operating element 230 along the longitudinal direction 105. The operating element 230 preferably has a disc-shaped base with an inner receiving portion 512 through which the operating element 230 can be arranged on the outer periphery 582 of the tool receiving portion 120. Here, a form-locking connection is particularly achieved between the operating element 230 and the tool receiving portion 120. The operating element 230 is secured to the tool receiving portion 120 along the longitudinal direction 105 or toward the first axial end 101 by a safety element 505. Preferably, the safety element 505 is configured as a safety ring. Here, the operating element 230 rests against the support element 580 and is axially secured by the safety element 505. Here, the safety element 505 is arranged in a positioning groove 585, which is constructed on the outer periphery 582 of the tool receiving portion 120.

[0060] Furthermore, the operating element 230 preferably has at least one, illustrated, two radially outwardly oriented operating sections 510 on its outer periphery. The operating sections 510 are preferably arranged opposite each other diametrically. Here, the operating sections 510 are constructed in a tabular form. The operating element 230, especially the operating sections 510, is preferably configured for operating the motor switch 185, or the motor circuit breaker 200.

[0061] Preferably, the circuit board 240 is arranged in the housing 110, particularly in the torque adjusting sleeve 130, via a retaining element 560. Here, the retaining element 560 preferably has a disc-shaped base with a slot 562. The slot 562 is configured to allow the motor circuit breaker 200 to be arranged therein, such as... Figure 6 As shown. Preferably, the circuit board 240 is secured to the retaining element 560 by screw elements 565.

[0062] Tool receiving unit 120 in its facing direction Figures 1 to 4The drive motor 140 preferably has an inner receiving portion 520 for receiving the spring element 180 on one side. Furthermore, the transmission device 210 preferably has a driven element 550, which is inserted into the inner receiving portion 520 of the tool receiving portion 120. Moreover, the tool receiving portion 120 is preferably configured to be axially movable relative to the driven element 550. It should be noted that... Figures 2 to 4 The drive unit 220 is preferably axially fixed in the housing 110 and only the tool receiving part 120 is axially movable. Thus, a mechanical coupling can be used.

[0063] Preferably, the driven element 550 has an inner receiving portion 555 for receiving the spring element 180 in sections. Here, the spring element 180 is arranged between the driven element 550, especially its inner receiving portion 555, and the tool receiving portion 120, especially its inner receiving portion 520. Preferably, the inner receiving portion 555 of the driven element 550 has a central locating pin 556 configured to center the spring element 180 in the inner receiving portion 520. Preferably, a single spring element 180 is provided. However, multiple spring elements 180 arranged in series may also be arranged in the inner receiving portion 520 of the tool receiving portion 120.

[0064] Preferably, the transmission device 210 has at least one bearing element 530 for rotatably supporting the tool receiving portion 120. Here, the bearing element 530 is preferably arranged between the tool receiving portion 120 and the transmission device housing (…). Figure 6 Between 610 and 620 in the above. Preferably, the bearing element 530 is configured as a bushing and / or a sliding bearing.

[0065] Figure 6 Show Figures 1 to 5 The drive unit 220 of the handheld machine tool. Here, Figure 6 The transmission device 210 arranged in the transmission device housings 610 and 620 is shown in a visual representation. Preferably, the transmission device housings 610 and 620 have a housing portion 610 facing the tool receiving portion 120 and a housing portion 620 facing the drive motor 140. Preferably, the end face 690 of the transmission device housings 610 and 620, especially the housing portion 610 facing the tool receiving portion 120, serves as the axial contact surface of the operating element 230 when the drive motor 140 is deactivated.

[0066] In addition, a torque connector is preferably provided ( Figure 8The torque adjusting device 650 (890) has a torque adjusting sleeve 130 for adjusting a pre-given torque and a spring retaining ring 630. Preferably, the torque adjusting sleeve 130 is directly connected to the spring retaining ring 630 via engaging portions 632 and 642. Preferably, the torque adjusting sleeve 130 has an internal thread 642 on its inner circumference, and the spring retaining ring 630 has an external thread 632 on its outer circumference to form the engaging portions 632 and 642.

[0067] exist Figure 6 The drive motor 140 is exemplarily activated. Here, a gap 660 is preferably formed between the operating element 230, or operating section 510, and the motor switch 185, or motor circuit breaker 200. The gap 660 is generated by the loading tool receiving portion 120, whereby the spring element 180 is compressed. Here, the tool receiving portion 120 is preferably abutted against the end face 690 of the housing portion 610 by a support element 580.

[0068] To activate the drive motor 140, the tool receiving section 120 or an insert tool 190 arranged in the tool receiving section 120 is loaded against the workpiece to be processed, thereby moving the tool receiving section 120 toward the drive motor 140 in a direction 198. Here, a gap 660 is formed between the operating element 230, or operating section 510, and the motor circuit breaker 200, and the drive motor 140 is activated.

[0069] also, Figure 6 The bearing element 530 is shown intuitively between the housing portion 610 and the outer periphery 582 of the tool receiving portion 120. Similarly, the actuating element 230 is shown arranged on the outer periphery 582 of the tool receiving portion 120, and the actuating element 230 is shown axially fixed by a safety element 505 arranged in a positioning groove 585. Furthermore, the motor circuit breaker 200 is shown intuitively arranged in a slot 562. Preferably, the driven element 550 is equipped with a spindle lock 590. Such a spindle lock 590 is well known from the prior art and therefore will not be described in detail here.

[0070] Figure 7 Show Figure 6 The driving unit 220 has an activation unit 189. Figure 7 In this configuration, the drive motor 140 is exemplarily deactivated, and the operating element 230, or operating section 510, is preferably arranged on the motor circuit breaker 200 because the tool receiver 120 is not loaded or the spring element 180 is not compressed. Here, the tool receiver 120 or support element 580 is spaced apart from the end face 690 of the housing portion 610.

[0071] To deactivate the drive motor 140, the tool receiving section 120 or the insert tool 190 arranged in the tool receiving section 120 is spaced apart from the workpiece to be processed, wherein the tool receiving section 120 faces... Figure 1 The actuator 230 moves away from the direction pointed to by the drive motor 140 and into its rest position. Here, the operating element 230, or operating section 510, preferably moves toward the motor circuit breaker 200, whereby the gap 660 becomes zero and the drive motor 140 is deactivated. It should be noted that the motor circuit breaker 200 is operated by the operating section 510 when it is in contact with the motor circuit breaker.

[0072] Figure 8 The tool receiving unit 120 is shown, which has Figures 1 to 7 The activation unit 189 and the torque connector 890 are arranged on the outer periphery 582 of the tool receiving portion 120. The torque connector 890 is preferably arranged on the outer periphery 582 of the tool receiving portion 120 at the end of the tool receiving portion 120 facing the drive motor 140. In particular, the torque connector 890 is preferably arranged on the outer periphery 582 in the region of the inner receiving portion 520. Preferably, the torque connector 890 is constructed as a mechanical connector. Such a torque connector 890 is well known in the prior art and will not be described in detail here for the sake of brevity. A spring element 810 is preferably arranged between the spring retaining ring 630 and the transmission element 820 or pressure plate associated with the torque connector 890 and facing the drive motor 140. These spring elements 810 are preferably constructed as compression springs.

[0073] Preferably, the spring element 810 is equipped with a transmission element 820, or pressure plate, that is loaded in the direction of the drive motor 140. Preferably, the spring elements 810, or pressure springs, are arranged at even intervals from each other on the circumferential side.

[0074] At least two, preferably three, and preferably six loading elements 830 are also arranged between the preferred approximately disc-shaped transmission element 820 and the end side of the transmission device 210 facing the tool receiving portion 120. Preferably, the loading element 830 is constructed in a cylindrical shape.

[0075] exist Figure 8 In the middle, the drive motor 140 is similar to Figure 6 The device is exemplarily activated, wherein a gap 660 is formed between the operating element 230 and the motor circuit breaker 200.

[0076] Figure 9 The tool receiving unit 120 is shown, which has Figures 1 to 8 Activation unit 189 and Figure 7 The torque connector 890, in which the drive motor 140 is deactivated. Here, with... Figure 7 Similarly, the control element 230 is attached to the motor circuit breaker 200.

[0077] Figure 10 Show Figures 1 to 9 The handheld power tool 100 has a drive unit 220, Figure 3 The circuit board 240 has an LED 310 and at least one sensor 410. According to another embodiment, the motor switch 185 is now configured as a motor circuit breaker 1000. Preferably, the motor circuit breaker 1000 is arranged on the end face 690 of the transmission housing, particularly the first housing portion 610.

[0078] Figure 11 The tool receiving unit 120 is shown, which has Figure 10 Activation unit 189 and Figure 7 Torque connector 890. In Figure 11 In this configuration, a gap 660 is formed between the motor circuit breaker 1000 and the control element 230, or control section 510, thereby disabling the drive motor 140. Furthermore, Figure 11 The motor circuit breaker 1000 is shown to be arranged on the end face 690 of the transmission housing, particularly the first housing portion 610.

[0079] To deactivate the drive motor 140, the tool receiving section 120 or the insert tool 190 arranged in the tool receiving section 120 is spaced apart from the workpiece to be processed, wherein the tool receiving section 120 moves to its rest position in a direction 199 away from the direction pointed to by the drive motor 140. Here, a gap 660 is formed between the operating section 510 and the motor circuit breaker 1000, thereby not operating the motor circuit breaker 1000 and deactivating the drive motor 140.

[0080] Figure 12 A tool receiving section 120 with an activated drive motor 140 is shown, which has Figure 10 and Figure 1 The activation unit 189. Here, due to the loading of the tool receiving part 120 and the resulting compression of the spring element 180, the operating element 230, or operating section 510, abuts against the motor circuit breaker 1000.

[0081] To activate the drive motor 140, the tool receiving section 120 or an insert tool 190 disposed in the tool receiving section 120 is loaded against the workpiece to be processed, thereby moving the tool receiving section 120 in the direction 198 toward the drive motor 140. Here, the operating element 230, or operating section 510, preferably moves toward the motor circuit breaker 1000, thereby reducing the gap 660, so that the motor circuit breaker 1000 is operated and the drive motor 140 is activated. It should be noted that the motor circuit breaker 1000 is preferably constructed as a pressure switch or pressure button pressed by the operating section 510.

[0082] It should be noted that in the above embodiments, the motor switch 185 is preferably configured as a switching element, particularly as a pressure switch or pressure button. Alternatively, the motor switch 185 and the actuating element 230 may be configured as contact elements capable of contacting each other, forming an electrical connection with the drive motor 140 or enabling power supply to the drive motor 140 when they are in contact with each other.

Claims

1. A handheld machine tool (100) comprising: An elongated housing (110) contains a drive unit (220) having at least one drive motor (140) for driving the tool receiving section (120). The tool receiving unit (120) is configured to receive an insertable tool (190). and The activation unit (189) for activating the drive motor (140) is wherein the drive motor (140) is activated by loading an insert tool (190) arranged in the tool receiving part (120) against the workpiece to be processed. The activation unit (189) includes a motor switch (185) disposed in the area of ​​the tool receiving portion (120) and an actuating element (230) disposed on the outer periphery (582) of the tool receiving portion (120) for operating the motor switch (185). The tool receiving portion (120) has an inner receiving portion (520) facing the drive motor (140) for receiving a spring element (180) associated with the activation unit (189). By loading the tool receiving portion (120), the spring element will move the actuating element (230)... 0) Loading in the direction (199) away from the direction pointed to by the drive motor (140) to deactivate the drive motor (140), characterized in that the drive unit (220) has a transmission device (210), and the transmission device (210) is arranged in a transmission device housing, wherein, when the drive motor (140) is deactivated, the end face (690) of the transmission device housing facing the tool receiving part (120) serves as the axial contact surface of the operating element (230), wherein the motor switch (185) is arranged on the end face (690) of the transmission device housing.

2. The handheld machine tool according to claim 1, characterized in that, By loading the tool receiving part (120), the spring element (180) can be compressed in the direction of the drive motor (140) so that the motor switch (185) can be operated by the actuating element (230) and thus the drive motor (140) can be activated.

3. The handheld machine tool according to claim 1 or 2, characterized in that, The tool receiving part (120) has a torque connector (890) on its outer periphery (582) in the region of the inner receiving part (520).

4. The handheld machine tool according to claim 3, characterized in that, The torque connector (890) has an adjustment sleeve (130) for adjusting a pre-given torque and a spring retaining ring (630), wherein the adjustment sleeve (130) is directly connected to the spring retaining ring (630) via an engagement portion.

5. The handheld machine tool according to claim 3, characterized in that, The tool receiving part (120) has a support element (580) on its outer periphery (582), wherein the operating element (230) rests against the support element (580) and is axially secured by means of a safety element (505).

6. The handheld machine tool according to claim 1, characterized in that, The transmission device (210) has a driven element (550), wherein the driven element (550) is inserted into the inner receiving part (520) of the tool receiving part (120).

7. The handheld machine tool according to claim 6, characterized in that, The tool receiving part (120) is configured to be axially movable relative to the driven element (550).

8. The handheld machine tool according to claim 6 or 7, characterized in that, The driven element (550) has an inner receiving portion (555) for receiving the spring element (180), wherein the spring element (180) is arranged between the driven element (550) and the tool receiving portion (120).

9. The handheld machine tool according to any one of claims 1, 2, 4 to 7, characterized in that, The transmission device (210) has at least one bearing element (530) for rotatably supporting the tool receiving part (120), wherein the bearing element (530) is arranged between the tool receiving part (120) and the transmission device housing.

10. The handheld machine tool according to any one of claims 1, 2, 4 to 7, characterized in that, The elongated housing (110) has a cylindrical base having a first axial end (101) and an opposing second axial end (102), wherein the end face (690) faces the first axial end (101).

11. The handheld machine tool according to claim 1, characterized in that, The motor switch (185) is configured as a motor circuit breaker (1000), wherein, by loading the tool receiving part (120), the spring element (180) loads the operating element (230) in a direction (199) away from the direction pointed by the motor circuit breaker (1000) to deactivate the drive motor (140).

12. The handheld machine tool according to claim 1, characterized in that, The handheld machine tool (100) is a screwdriver.

13. The handheld machine tool according to claim 1, characterized in that, The drive motor (140) is activated by loading the insert tool (190) arranged in the tool receiving section (120) against the workpiece to be processed along the longitudinal axis (128) of the handheld machine tool (100).

14. The handheld machine tool according to claim 1, characterized in that, The transmission device (210) is a planetary gear transmission device.

15. The handheld machine tool according to claim 8, characterized in that, The spring element (180) is arranged between the inner receiving portion of the driven element (550) and the inner receiving portion of the tool receiving portion (120).

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