HOUSING PART FOR A HAND-GUIDED WORK TOOL

Description

[0001] The invention relates to a housing part for a hand-held work device. A housing part according to the preamble of claim 1 is already known from CN 213 519 669 U / US 2022 / 199335 A1.

[0002] Hand-held power tools are known that comprise a housing, a drive motor arranged within the housing, and a tool driven by the drive motor. Such tools have several operating elements, such as an operating lever, a locking lever, etc. With the increasing use of electrically powered tools, there is a need to provide additional operating elements, such as a speed control lever, etc., on the tool.

[0003] In order to provide the operating elements for the operator in the most ergonomic arrangement possible on the work equipment, they should be located as close as possible to the grip area so that the operator can operate them without having to let go of the handle(s) of the work equipment.

[0004] Particularly with operating levers or locking levers, it is known to form their axes of rotation integrally with the housing or a housing component of the working device. The housings are usually molded from a plastic. Pins formed on the housing serve as axes of rotation, their longitudinal direction corresponding to the demolding direction of the housing. Such axes of rotation allow for simple attachment of the operating levers to the housing while simultaneously reducing manufacturing costs for the housing.

[0005] A disadvantage of such work equipment is that when multiple operating elements are involved, an ergonomic arrangement of these is difficult to achieve.

[0006] The invention is based on the objective of providing a housing part that enables an ergonomic arrangement of operating elements on a work device while simultaneously allowing for easy assembly of the work device.

[0007] This problem is solved by a housing part for a hand-held work device according to the features of claim 1.

[0008] The invention is based, among other things, on the understanding that several operating levers can be arranged ergonomically in relation to one another, particularly if they have pivot axes oriented differently. The operating lever is usually actuated by the operator's index finger. This lever has a pivot axis aligned with the demolding direction of the housing. Other operating levers are often actuated by the thumb of the same hand. However, the pivoting movement preferred for the thumb does not correspond to that of the index finger. To account for this, the direction of the pivot axis of the other operating lever must be aligned differently from the demolding direction.

[0009] The assembly according to the invention therefore provides a lever pivotably arranged on its holding device. The holding device can be attached to the housing element of the working tool via its fixing unit in such a way that the direction of the pivot axis of the lever arranged on the holding device differs from the demolding direction of the housing element. The lever is thus indirectly held on the housing element via the holding device. Therefore, the use of the assembly and the housing part according to the invention allows for a pivot axis direction that differs from the demolding direction. This allows the lever to be attached to the working tool in a way that is particularly ergonomic for thumb operation.

[0010] Another advantage of the assembly is that it can be attached to the housing component as a pre-assembled unit. This simplifies the installation of the tool and can also reduce assembly time.

[0011] The assembly includes a return spring, which is mounted on the retaining device and operatively connected to the lever. In particular, attaching springs can be delicate and difficult due to the application of a preload force. Pre-assembling the return spring onto the assembly significantly simplifies the installation of the tool.

[0012] Preferably, a control element is arranged on the holding device. It may be advantageous to provide several control elements on the holding device. A control element can be another lever, a button, or the like. A control element can also be an operating indicator that serves solely to display information about the working tool.

[0013] Preferably, the lever is mounted on the holding device via a shaft. The shaft is formed integrally with the lever. In an alternative embodiment of the assembly, the shaft can also be designed as a separate component from the lever. The shaft is preferably a cylindrical pin formed separately from the lever.

[0014] It is advantageously provided that the shaft has at least one operating section and at least one assembly section, wherein the diameter of the assembly section is at least partially smaller than the diameter of the operating section. Preferably, the holding device has a receptacle for supporting the shaft, the receptacle having an insertion slot for the shaft, the height of which is greater than the smallest diameter of the assembly section and less than the diameter of the operating section. Thus, the shaft, with its assembly section, can be inserted into the receptacle via the insertion slot. The shaft can then be positioned such that the operating section of the shaft is located at the insertion slot of the receptacle, preventing the shaft from being removed from the receptacle via the insertion slot.

[0015] Preferably, the shaft is held in the housing by displacement ribs. This ensures that the shaft is securely held in the assembly.

[0016] Preferably, the housing part has a longitudinal plane perpendicular to the demolding direction and a transverse plane oriented perpendicular to the longitudinal plane, wherein, in a viewing direction perpendicular to the transverse plane, the pivot axis of the lever forms an angle with the longitudinal plane, the angle in the viewing direction perpendicular to the transverse plane being preferably less than 80°, more particularly less than 60°, more preferably less than 45°, and most preferably less than 35°. This allows the lever to be pivoted in a particularly ergonomic manner, especially with the operator's thumb.

[0017] It is advantageously provided that the housing part comprises a second housing element attached to the first housing element, with the assembly being held between the two housing elements. The housing part is preferably designed as a handle. Alternatively, the housing part can also extend over other areas of the housing.

[0018] An actuating lever is provided on the first housing element, the direction of which of the actuating lever's pivot axis corresponds to the demolding direction. Preferably, a locking lever is provided on the first housing element, the direction of which of the locking lever's pivot axis corresponds to the demolding direction. Thus, the direction of the lever's pivot axis differs from the direction of the pivot axes of the actuating lever and the locking lever.

[0019] Further features of the invention will become apparent from the description and the drawing. Exemplary embodiments described in detail are shown below. The drawings illustrate: Fig. 1 a schematic representation of a brush cutter held by an operator, Fig. 2 a perspective view of the housing part, Fig. 3 a perspective view of the housing part with the assembly removed, Fig. 4 a perspective view of the housing part with the assembly mounted, Figs. 5 to 9 perspective views of the assembly, Fig. 10 a top view of the housing part with the assembly removed in exploded view, Fig. 11 a schematic representation of a chainsaw, Fig. 12 a perspective view of another embodiment of the housing part with the assembly removed, Figs. 13 to 20 perspective views of the assembly of the assembly according to Fig. 12and Fig. 21 a partially enlarged view of the assembly with a holding device with displacement ribs.

[0020] Fig. 1Figure 1 shows a schematic representation of a working tool 1. In this exemplary embodiment, the working tool 1 is designed as a brush cutter. The working tool 1 is held by an operator 30. The working tool 1 has a rear end with a rear housing 31 and a front end with a front housing 32, from which an output shaft (not shown) protrudes. A drive motor 35 (shown schematically) is arranged in the rear housing 31 of the working tool 1 and drives a drive shaft (not shown) to drive a cutting head 36. The cutting head 36 is connected to the front end of the working tool 1. The cutting head 36 is attached to the output shaft of the working tool 1 and is driven by the drive motor 35 to rotate about a pivot axis 37. The rear end of the working tool 1 is connected to the front end of the working tool 1 via a shaft 33. In this exemplary embodiment, the drive shaft runs inside the shaft 33.It is possible for the drive shaft in the shaft 33 to be directly connected to the output shaft for the cutting head 36. Accordingly, in such an embodiment, no gearbox would be provided between the output shaft and the drive shaft. In the present embodiment of the work device 1, an intermediate gearbox (not shown) is provided between the drive shaft and the output shaft. In an alternative embodiment of the work device 1 (not shown), the drive motor 35, which is in particular an electric motor, can also be arranged in the front housing 32. The electric motor can be powered by a battery or by a connecting cable. The cutting head 36 is covered on the side facing the operator 30 during operation by a protective hood 38. The cutting head 36 has at least one tool 39, which in the exemplary embodiment is designed as a cutting blade for cutting material such as grass, brush, or the like.

[0021] As in Fig. 1 As shown, handles 34 for guiding the working tool 1 are arranged on the shaft 33. In the exemplary embodiment according to Fig. 1 at least one of the two handles 34 of the working device 1 forms a housing part 2 ( Fig. 3 ).

[0022] As in Fig. 2As shown, housing part 2 comprises a base housing 3. The base housing 3 comprises at least one first housing element 4. In the present embodiment, the base housing 3 is formed from a first housing element 4 and a second housing element 5. In this embodiment, housing part 2 comprises a switching element 83. When the switching element 83 is activated, the drive motor 35 is ready for operation. In this embodiment, housing part 2 comprises an actuating lever 81 and a locking lever 82. The actuating lever 81 and the locking lever 82 are operatively connected to each other. The actuating lever 81 is provided for controlling the drive motor 35. The locking lever 82 is designed such that, in the unactuated position, the locking lever 81 preferably mechanically locks the actuating lever 81, and in the actuated position, it releases the actuating lever 82. Housing part 2 comprises a lever 11.In the exemplary embodiment, the lever 11 is a speed control switch used to adjust the speed, in particular the speed levels, of the drive motor 35 of the working device 1. Furthermore, in the preferred embodiment, the housing part 2 includes an operator display 84. The operator display 84 serves to visualize the speed levels set by means of the lever 11. In an alternative embodiment of the working device 1, the lever 11 can also have a different function. In the preferred embodiment, the lever 11 and the activation element 83 are arranged adjacent to each other such that, when holding the housing part for the intended operation of the housing part 2, the activation element 83 and the lever 11 can be pressed by the operator's thumb.

[0023] As in the Figures 2 and 3As shown, the housing elements 4, 5 each have a shell contour 25 with an inner surface 26 and an outer surface 27. The housing elements 4, 5 are detachably connected to one another. Preferably, the housing elements 4, 5 are connected to one another by a screw connection in the assembled state. In the assembled state, the inner surfaces 26 of the housing elements 4, 5 face each other. The outer surfaces 27 of the housing elements 4, 5 form a handle section 28.

[0024] The basic housing 3 is at least partially made of plastic. The housing elements 4, 5 are preferably made entirely of plastic. The housing elements 4, 5 are preferably injection-molded parts. As in Fig. 3As shown, the housing element 4 has a demolding direction 6. The demolding direction 6 corresponds to a primary demolding direction of a casting, in which it is removed from the mold. If the casting is still in the mold, the demolding direction 6 is oriented orthogonally to the parting line of the mold. The demolding direction 6 is therefore not to be understood as an additional demolding direction of possible slide elements of a casting mold. The first housing element 4 comprises a longitudinal plane 16. If the first housing element 4 is still in its mold, the longitudinal plane 16 is oriented parallel to the parting line. Preferably, the parting line corresponds to the longitudinal plane 16 of the mold. In the preferred embodiment, the demolding direction 6 of the first housing element 4 is oriented orthogonally to the longitudinal plane 16 of the first housing element 4.In the present embodiment, the longitudinal plane 16 forms the parting plane of the base housing 3, in which the first housing element 4 and the second housing element 5 contact each other at their shell contours 25. The housing part 2 comprises a transverse plane 7, the transverse plane 7 being perpendicular to the longitudinal plane 16. Furthermore, the transverse plane 7 is parallel to the longitudinal axis 80 of the handle section 28 of the housing part 2. The handle section 28 is the area of ​​the housing part 2 that is intended for holding the housing part 2 during normal operation. The handle section 28 extends along its longitudinal axis 80 from its first end 87 to its second end 88. The longitudinal axis 80 of the handle section 28 intersects a longitudinal center line of the handle section 28 at both its first end 87 and its second end 88.

[0025] As in Fig. 2As shown, the actuating lever 81 comprises a pivot axis 85, wherein the actuating lever 81 is pivotably mounted on the base housing 3 about its pivot axis 85. The direction of the pivot axis 85 of the actuating lever 81 corresponds to the demolding direction 6. The locking lever 82 comprises a pivot axis 86, wherein the locking lever 82 is pivotably mounted on the base housing 3 about its pivot axis 86. The direction of the pivot axis 86 of the locking lever 82 corresponds to the demolding direction 6.

[0026] As in Fig. 3As shown, the housing part 2 comprises an assembly 8. The assembly 8 is detachably attached to the base housing 3, in particular to the first housing element 4. In the exemplary embodiment, the assembly 8 comprises a holding device 9, a lever 11, and a switch 15. The lever 11 is pivotably mounted on the holding device 9 about a pivot axis 12. The switch 15 is attached to the holding device 9. The switch 15 is operatively connected to the lever 11.

[0027] Furthermore, assembly 8 includes a return spring 13. The return spring 13 acts on the lever 11 and biases it into a starting position 42 ( Fig. 4In this initial position 42, the switch 15 is unactuated. In the exemplary embodiment, the return spring 13 is designed as a torsion spring. The return spring 13 comprises a first end 40 and a second end 41. In the exemplary embodiment, the two ends 40, 41 are each formed by a leg of the return spring 13. The first end 40 of the return spring 13 is clamped to the lever 11. As in Fig. 4As shown, the second end 41 of the return spring 13 is tensioned against the first housing element 4 when the assembly 8 is attached to it. For this purpose, a web 43 is provided on the first housing element 4, extending from the inside 26 of the first housing element 4 towards the longitudinal plane 16 in the direction of the demolding direction 6. The web 43 has a groove-shaped receptacle 44. When the assembly 8 is attached to the first housing element 4, the second end 41 of the return spring 13 slides into the groove-shaped receptacle 44 under preload. The return spring 13 is supported on the first housing element 4 via the groove-shaped receptacle 44 and exerts a return force 14 on the lever 11 with its second end 40. In the preferred embodiment, the return spring 13 is held directly on the lever 11. It may also be advantageous to arrange the return spring 13 directly on the holding device 9.In an alternative embodiment of the housing part 2, it might be advantageous to support the return spring 13 with its second end 41 against the holding device 9.

[0028] As especially in Fig. 9As shown, the switch 15 is held on the mounting device 9. The switch 15 has two receiving openings 52. To attach the switch 15 to the mounting device 9, it is slid onto two pin elements 50 formed on the mounting device 9. Once the switch 15 is attached to the mounting device 9, the pin elements 50 project into the corresponding receiving openings 52 of the switch 15. The diameters of the pin elements 50 and the receiving openings 52 are designed such that the switch 15 cannot detach from the mounting device 9 without external force. An actuating element 51 is provided on the switch 15. A projection 58 is formed on the lever 11, and when the lever 11 is actuated, the projection 58 presses on the actuating element 51 and activates the switch 15. Corresponding signals are transmitted via the contacts 53 provided on the switch 15 to a control unit (not shown).The actuating element 15 is designed as a push button. Other designs, for example a switching tongue, may also be suitable in alternative embodiments. In the preferred embodiment, the switch 15 is designed as a microswitch.

[0029] As in Fig. 3As shown, a fixing unit 10 is provided on the holding device 9 for attachment to the first housing element 4. The fixing unit 10 is formed from an annular, in particular circular, opening 45 and from a sleeve-shaped receptacle 46 formed separately from the opening 45. The first housing element 4 includes a pin 47 onto which the holding device 9 is mounted via the annular opening 45. Furthermore, the housing element 4 includes a dome 48 with an internal thread. When the assembly 8 is attached to the first housing element 4, the sleeve-shaped receptacle 46 projects beyond the dome 48, the receptacle 46 being screwed to the dome 48 by a screw 49. The pin 47 and the dome 48 extend from the inner surface 26 of the first housing element 4 in the demolding direction 6 towards the longitudinal plane 16 of the first housing element 4.

[0030] In the Figures 5 to 9The individual steps for assembling assembly 8 are shown and described below: As in Fig. 5 As shown, a receptacle 22 for the lever 11 is formed on the holding device 9. The receptacle 22 consists of two spaced-apart legs 54 of the holding device 9. Each leg 54 has a circular opening 55 in which the lever 11 is pivotably mounted. To enable the lever 11 to be positioned in the receptacle 22, an insertion slot 23 is provided on each leg 54.

[0031] The lever 11 is mounted in the receptacle 22 of the holding device 9 via a shaft 19. In the preferred embodiment, the shaft 19 is formed integrally with the lever 11. It may also be advantageous to form the lever 11 and the shaft 19 separately. To move the shaft 19 into the receptacle 22 via the insertion slot 23, the shaft 19 comprises two mounting sections 20 and two operating sections 21. Alternatively, it may also be advantageous to provide only one or more than two mounting sections 20 or operating sections 21. Along the mounting section 20 of the shaft 19, the shaft 19 has a flat surface 29. As shown in Fig. 10As shown, the smallest diameter d2 of the shaft 19 in assembly section 20 is smaller than the smallest diameter d1 of the shaft 19 in operating section 21. The insertion slot 23 of the receptacle 22 has a height h. The height h is larger than the smallest diameter d2 of the shaft 19 in assembly section 20 and smaller than the smallest diameter d1 of the shaft 19 in operating section 21.

[0032] To attach the lever 11 to the holding device 9, the shaft 19 with its flattened mounting section 20 is to be guided through the insertion slot 23 into the receptacle 22. The shaft 19 is then to be moved in the direction of the pivot axis 12 until the lever 11, in particular completely, is held in the receptacle 22 via the operating section 21 of the shaft 19. Fig. 6In this position of the lever 11, the lever 11 with the shaft 19 cannot be moved out of the receptacle 22 via the insertion slot 23. In the present embodiment of the assembly 8, the flattened section 29 of the shaft 19 is designed such that the lever 11 must be pivoted towards the holding device 9 in order to assume the initial position 42 ( Fig. 7 ). In this process, at least two retaining webs 56 encompass a leg 54 of the retaining device 9, thereby securing the shaft 19 against translational movement in the direction of the pivot axis 12 relative to the retaining device 9 ( Fig. 8 ).

[0033] As in Fig. 8 As shown, the return spring 13 is to be mounted on the shaft 19. The first end 40 of the return spring 13 is clamped to the lever 11. The second end 41 of the return spring 13 is free in this assembly step.

[0034] As in Fig. 9As shown, to complete assembly 8, the switch 15 with its receiving openings 52 is to be slid onto the pin elements 50 of the holding device 9.

[0035] The pre-assembled assembly 8 can now be used as described in the Figures 3 and 4 As shown, the fully pre-assembled assembly 8, with its fixing unit 10, is to be attached to the first housing element 4. For this purpose, the fully pre-assembled assembly 8 is to be slid onto the pin 47 and the dome 48. The second end 41 of the return spring 13 then engages in the groove-shaped receptacle 44 of the web 43, thus pre-tensioning the return spring 13. Finally, the assembly 8 is to be screwed to the housing element 4 using the screw 49. In this way, a simple and quick assembly of all the individual elements contained in the assembly 8 to the first housing element 4 is achieved.

[0036] As in the Figures 4 and 10As shown, the demolding direction 6 of the housing element 4 and the direction of the pivot axis 12 are different. In the preferred embodiment, the pivot axis 12 runs parallel to the longitudinal plane 16, in particular in the longitudinal plane 16. Thus, the demolding direction 6 is oriented perpendicular to the pivot axis 12 of the lever 11. In an alternative embodiment of the housing part 2, it may also be advantageous for the lever 11 to be arranged on the housing part 2 via the retaining device 9 such that the pivot axis 12 of the lever 11 forms an angle α, α' with the longitudinal plane 16, wherein the angle α, α' is open away from the handle section 28. Fig. 10The schematic representation shows pivot axes 12', 12" enclosing the angle α, α'. The schematically represented pivot axes 12', 12" are arranged symmetrically to the longitudinal plane 16. The angle α, α', perpendicular to the transverse plane 7, is preferably less than 80°, particularly less than 60°, preferably less than 45°, and most preferably less than 35°.

[0037] In the Figures 3 and 4It can be seen that all fastening elements 57 extend in the demolding direction 6. In other words, the longitudinal direction of the fastening elements 57 corresponds to the demolding direction 6. If a pivotable control element is to be attached directly to the first housing element 4, the longitudinal direction of a bearing pin formed on the first housing element 4 would correspond to the demolding direction 6. Consequently, the pivot axis of a control element attached to the bearing pin would also necessarily correspond to the demolding direction 6. By using a holding device 9, the lever 11 can be mounted on the holding device 9 in such a way that the direction of the pivot axis 12 can be selected independently of the demolding direction 6 of the first housing element 4. This design of the housing part 2 allows for the arrangement of several control elements in a small space, which can also be arranged in an ergonomically advantageous manner for the operator.

[0038] In the Figures 11 to 21 Another embodiment of the invention is shown. With regard to the embodiment according to the Figures 1 to 10 It should be noted that the same reference symbols denote the same components.

[0039] The in Fig. 11The working device 1 shown is a chainsaw. The working device 1 comprises the housing part 2, to which a rear handle 60 and a handle tube 61 for guiding the working device 1 are attached. A guide bar 62 projects forward from the side of the housing part 2 opposite the rear handle 60. A saw chain 63 is arranged circumferentially on the guide bar 62 and is driven by the drive motor 35 shown schematically. In the preferred embodiment, the drive motor 35 is an electric motor, which can be powered by a battery or a connecting cable. It may also be advantageous for the drive motor to be designed as an internal combustion engine.

[0040] The drive motor 35 drives a drive shaft that protrudes from the housing part 2. A drive sprocket 65, shown schematically, is arranged on the drive shaft. The drive sprocket 65 serves to drive the saw chain 63, which is guided over the drive sprocket 65 during operation. Furthermore, the implement includes a clamping device (not shown in detail) by which the guide rail 62 can be displaced forward away from the drive sprocket 64 in the direction of its longitudinal axis 66. When the implement 1 is resting on a flat, horizontal surface 67, the longitudinal axis 66 runs centrally through the guide rail 62 and approximately parallel to the horizontal surface 67. The term "approximately" means that the longitudinal axis 66 of the guide rail 62 forms an angle of no more than 15° with the surface 67.The guide rail 62 has a longitudinal plane 68 which, in a state where the working device 1 is placed on a flat horizontal ground 67, contains the longitudinal axis 66 and is perpendicular to the ground 67.

[0041] As in Fig. 12 As shown, the housing part 2 of the working device 1 comprises the first housing element 4 with the demolding direction 6. The demolding direction 6 is arranged perpendicular to the longitudinal plane 16 of the housing element 4, wherein the longitudinal plane 16 in the exemplary embodiment is parallel to the longitudinal plane 68 of the guide rail 62 ( Fig. 11 ) is arranged. The first housing element 4, together with a second housing element 5 (not shown in detail), forms a basic housing (not shown in detail). The basic housing forms at least part of the rear handle 60 and serves as a support element for the drive motor 35, the guide rail 62, the assembly 8, and other components of the working device 1.

[0042] As in Fig. 12As shown, assembly 8 comprises the holding device 9, the lever 11 pivotably mounted on the holding device 9 via the shaft 19, the return spring 13, and the switch 15. The assembly also includes an additional control element 18, which in this embodiment is configured as a display. Control elements are thus understood to be elements to be actuated, but also display elements of the working device, whose function is solely to transmit information to the operator. Furthermore, the assembly includes a sealing element 70 in which the lever 13 and the additional control element 18 are enclosed.

[0043] As in Fig. 12As shown, the fixing unit 10 is provided on the holding device 9, which in this embodiment consists of three openings 45. The assembly 8 can be attached to the first housing element 5, in particular to the dome 48 of the first housing element, via at least one of the three openings 45. The screw 49 engages in an internal thread of the dome 48. The holding device 9 is placed onto the pins 47 of the first housing element 4 via the two other openings 45. The pins 47 and the dome 48 extend longitudinally in the demolding direction 6. The assembly 8 is preferably attached to the first housing element 4 in its fully assembled state.

[0044] In the Figures 13 to 20 The individual assembly steps of assembly group 8 are shown, which are described in more detail below.

[0045] In the Figures 13 and 14The lever 11 is shown, the actuation area 74 of which is to be inserted into a lateral opening of the sealing element 70. The operator can actuate the lever 11 via the actuation area 74. In the exemplary embodiment, the lever 11 and the shaft 19 are formed in two parts. Accordingly, a shaft receptacle 71, aligned coaxially with the pivot axis 12, is provided on the lever 11. Extending from the shaft receptacle 71 is the arm 58, which is provided for actuating the switch 15. The seal 70 is made of a plastic, preferably an elastomer. The seal 70 is elastically deformable, which allows it to be easily attached to the lever 11.

[0046] If the seal 70 is attached to the lever 11, then, as in Fig. 14As shown, the return spring 13 is then attached to the lever 11. For this purpose, the return spring 13 is pushed onto a projection of the shaft receptacle 71. The return spring 13 is designed as a torsion spring and comprises the first end 40 and the second end 41. The ends 40 and 41 of the return spring 13 are bent relative to each other. The leg of the return spring 13 with the first end 40 is preferably clamped to the lever 11.

[0047] As in Fig. 15 As shown, the mounting device 9 has a receptacle 22 for supporting the shaft 19. In this embodiment, the receptacle 22 consists of two coaxially aligned circular openings, each formed in two spaced-apart wall sections of the mounting device. The lever 11 is to be attached to the mounting device 9 with the return spring 13 and the seal 70. As shown in the Figures 16 and 17As shown, the lever 11 with the return spring 13 and the seal 70 is first to be positioned at an angle to the holding device 9 with the arm 58 of the lever 11 against a retaining edge 75 of the holding device 9. The term "angled" here is to be understood such that the arm 58 of the lever 11 contacts the holding device 9, but the receptacle 22 of the holding device 9 and the shaft receptacle 71 of the lever 11 are not yet in overlap.

[0048] As in Fig. 16 As shown, the arm 58 of the lever 11 lies between the retaining edge 75 and the base body of the holding device 9. Furthermore, the return spring 13 is clamped to the lever 11 at its first end 40. The second end 41 of the return spring 13 already contacts the holding device 9. As shown in Fig. 17As shown, the lever 11 is to be pivoted in the direction of the holding device 9 until the receptacle 22 of the holding device 9 and the shaft receptacle 71 of the lever 11 are in overlap, i.e., are coaxially aligned with each other ( Fig. 17The legs of the return spring 13 are compressed, thus pre-tensioning the return spring 13. As the lever 11 pivots into the holding device 9, the second end 41 of the return spring 13 slides downwards along the holding device 9, i.e., towards the extension 58, until the lever 11 is in its final assembly position. To allow the second end 41 of the return spring 13 to slide along the holding device 9, a radius 76 is provided on the holding device 9. The radius 76 is concave towards the return spring 13, thereby achieving the most acute possible contact angle between the return spring 13 and the holding device 9. Furthermore, the offset of the return spring 13 improves the sliding properties of both the return spring 13 and the holding device 9.

[0049] If the lever 11 is fully pivoted so that the receptacle 22 of the holding device 9 and the shaft receptacle 71 are coaxially overlapping, the shaft 19 is to be inserted into the receptacle 22 or into the shaft receptacle 71 respectively ( Fig. 18 The shaft 19 is designed as a pin, preferably with a chamfer. The lever 11 is held on the holding device 9 via the shaft 19 and via the retaining edge 75. As in Fig. 18 As shown, several displacement ribs 24 are provided in figure 22. As in Fig. 21As shown, in a preferred embodiment of the holding device 9, three displacement ribs 24 are provided. In an alternative embodiment, a different number of displacement ribs 24 may also be advantageous. When the shaft 19 is inserted into the receptacle 22, it rests against the displacement ribs 24 of the receptacle 22. The diameter of the shaft 19 and the diameter formed by the displacement ribs 24 are designed such that they form an interference fit. As a result, the displacement ribs 24 are plastically deformed when the shaft 19 is inserted, thereby generating a clamping force between the receptacle 22 and the shaft 19. Thus, the shaft 19 is held securely in the receptacle 22.

[0050] As in Fig. 19As shown, the additional control element 18 is to be inserted into the upper opening 73 of the seal 70. The control element 18 has several ribs 77 on its longitudinal sides. Counter ribs 78 are arranged on the holding device 9, which interact with the ribs 77 of the control element 18. For fastening, the control element 18 is to be inserted into the holding device 9 in the longitudinal direction of the ribs 77 such that the ribs 77 of the control element 18 and the counter ribs 78 of the holding device 9 overlap.

[0051] To complete the assembly of the subassembly 8, the switch 15 must be attached to the holding device 9. The switch 15 is provided with pin elements 50, which are to be inserted into the receiving openings 52 of the holding device 9. The switch 15 is aligned with its actuating element 51 in the direction of the arm 58. A switching tongue is provided on the switch 15. When the lever 11 is actuated, it acts on the switching tongue, which in turn presses the actuating element 51 of the switch 15, thus activating the switch. In this pre-assembled state, the subassembly 8 can be attached to the first housing element 4 as described above. The pivot axis 12 of the lever 11 is then aligned transversely to the demolding direction 6. The pivot axis 12 preferably lies in a plane parallel to the longitudinal plane 16.

Claims

1. Housing part for a hand-held power tool, with a base housing (3), comprising at least a first housing element (4) with a demoulding direction (6), and with an assembly (8) comprising - a holding device (9) fastened to the base housing (3), - a lever (11) pivotably arranged on the holding device (9) about a pivot axis (12), - a switch (15) arranged on the holding device (9), wherein the lever (11) is in operative connection with the switch (15), wherein the direction of the pivot axis (12) of the lever (11) and the demoulding direction (6) of the first housing element (4) are different, characterized in that an actuating lever (81) is provided on the first housing element (4), wherein the direction of the pivot axis (85) of the actuating lever (81) corresponds to the demoulding direction (6).

2. Housing part according to claim 1, characterized in that the assembly (8) comprises a return spring (13), wherein the return spring (13) is arranged on the holding device (9) and is operatively connected with the lever (11).

3. Housing part according to claim 1 or 2, characterized in that an operating element (18) is arranged on the holding device (9).

4. Housing part according to one of claims 1 to 3, characterized in that the lever (11) is mounted on the holding device (9) via a shaft (19).

5. Housing part according to claim 4, characterized in that the shaft (19) is integrally formed with the lever (11).

6. Housing part according to claim 5, characterized in that the shaft (19) has at least one operating section (20) and at least one mounting section (21), wherein a diameter (d2) of the mounting section (21) is at least partially smaller than a diameter (d1) of the operating section (20).

7. Housing part according to claim 6, characterized in that the holding device (9) has a receptacle (22) for mounting the shaft (19), wherein the receptacle (22) has an insertion slot (23) for the shaft (19), wherein a height (h) of the insertion slot (23) is larger than the smallest diameter (d2) of the mounting section (21) and smaller than the diameter (d1) of the operating section (20).

8. Housing part according to claim 4, characterized in that the shaft (19) is a cylindrical pin formed separately from the lever (11).

9. Housing part according to one of claims 4 to 8, characterized in that the shaft (19) is held in the receptacle (22) by displacement ribs (24).

10. Housing part according to one of claims 1 to 9, characterized in that the housing part (2) has a longitudinal plane (16) standing perpendicular to the demoulding direction (6) and a transverse plane (7) aligned perpendicular to the longitudinal plane (16), and wherein in a viewing direction perpendicular to the transverse plane (7) the pivot axis (12) of the lever (11) encloses an angle (α) with the longitudinal plane (16), wherein the angle (α) is smaller than 80°.

11. Housing part according to one of claims 1 to 10, characterized in that the housing part (2) comprises a second housing element (5) fastened to the first housing element (4), wherein the assembly (8) is held between the two housing elements (4, 5).

12. Housing part according to claim 11, characterized in that the housing part (2) is formed as a handle (34).

13. Housing part according to one of claims 1 to 12, characterized in that a locking lever is provided on the first housing element (4), wherein the direction of the pivot axis of the locking lever corresponds to the demoulding direction (6).