Operating device for a brake system, method for manufacturing an operating device for a brake system

Abstract

The present invention relates to an actuating device (1) for a brake system (2) having an actuable brake master cylinder (14), comprising a transmission (16) with a displaceable threaded spindle (17), by which the brake master cylinder (14) can be actuated, an electric motor (12) for driving the transmission (16), and a housing (3) in which the threaded spindle (17) is at least partially arranged, a rotation prevention element (24) is connected to the threaded spindle (17) in a manner that prevents relative rotation therewith, the housing (3) having at least one anti-rotation stop (37, 38) cooperating with a rotation stop (40, 41) of the rotation prevention element (24) to form a torsion prevention part (23) for the threaded spindle (17). It is contemplated that the housing (3) is an extruded profile (3) and that the anti-rotation stops (37, 38) are formed by extruded structural parts (35) of the extruded profile (3).

Description

[Technical field]

[0001] The present invention relates to an actuating device for a brake system having an operable brake master cylinder, the actuating device comprising a transmission having a displaceable threaded spindle, in which the brake master cylinder can be actuated by displacement of the threaded spindle, an electric motor for driving the transmission, and a housing in which the threaded spindle is at least partially arranged, wherein a rotation prevention element is connected non-rotatably with the threaded spindle, and the housing has at least one anti-rotation stop which cooperates with a rotation stop of the rotation prevention element to form a torsion prevention section for the threaded spindle.

[0002] Furthermore, the invention relates to a method for producing an actuating device for a brake system, comprising providing a housing with at least one anti-rotation stop and a transmission with a displaceable threaded spindle, connecting a rotation-stop element with the threaded spindle in a non-rotatable manner, arranging the transmission in such a way that the threaded spindle is at least partially arranged in the housing and that the rotation stop of the rotation-stop element cooperates with the anti-rotation stop of the housing to form a torsional stop for the threaded spindle, and operatively connecting the electric motor with the transmission in such a way that the transmission can be driven by the electric motor. [Background technology]

[0003] A hydraulic brake system of a motor vehicle typically has a number of friction brake devices, which are hydraulically connected to a brake master cylinder of the brake system. When the brake master cylinder is actuated, the hydraulic fluid in the slave cylinder of the friction brake device is displaced, so that the friction brake device generates a friction brake torque. For actuating the brake master cylinder, an actuating device is typically provided. With the increasing electrification of motor vehicles, the electrification of the actuating devices of the brake system is also increasing. An actuating device of the type mentioned at the beginning is known from DE 101 1 43 53 A1. This actuating device has a transmission with a displaceable threaded spindle. The transmission can be driven by an electric motor of the actuating device. If the actuating device is constructed in the brake system as specified, the brake master cylinder can be actuated by displacing the threaded spindle. The actuating device further has a housing with at least one anti-rotation stop. The threaded spindle is at least partially arranged in the housing. To prevent a relative rotation of the threaded spindle with respect to the housing, a rotation prevention element is provided which is non-rotatably connected with the threaded spindle. The anti-rotation stop of the housing cooperates with the anti-rotation stop of the anti-rotation element to form a twist stop for the threaded spindle. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] German Patent Application Publication No. 102020208764A1 Summary of the Invention

[0005] The operating device according to the invention is characterized in that the housing is an extruded profile and the anti-rotation stop is formed by an extruded structure of the extruded profile. An extruded profile is a part produced by extrusion or extrusion pressing. The extruded profile has the same cross section over its entire longitudinal length, except for the extruded profile which has been subjected to further processing. The cross section of the extruded profile corresponds in shape to the opening of the extrusion tool used to produce the extruded profile. Extruded profiles can typically be produced cost-effectively, so that by forming the housing as an extruded profile, the production costs for the operating device can be reduced. An extruded structure is a structure produced by extrusion of the extruded profile. A structure suitable for forming the anti-rotation stop can be easily realized by extrusion. Since the anti-rotation stop is formed by an extruded structure, no complicated further processing is required to form the anti-rotation stop. This allows the costs for producing the operating device to be further reduced. Particularly preferably, the housing or the extruded profile is made of aluminum. The threaded spindle is arranged at least partially in the housing or in the extruded profile according to the invention. Preferably, the threaded spindle projects into the housing, so that it is arranged only partially in the housing. Alternatively, the entire threaded spindle is arranged in the extruded profile. The housing is preferably tubular and, in this respect, has a circumferentially extending side wall that determines or encloses the housing interior of the housing. The rotation prevention element is preferably formed separately from the threaded spindle and is fixed to it. Alternatively, the rotation prevention element is preferably formed integrally with the threaded spindle. Preferably, the rotation prevention element is arranged at the brake master cylinder side end of the threaded spindle.

[0006] According to an advantageous embodiment, it is provided that the displacement axis of the threaded spindle is oriented perpendicular to the cross section of the extruded profile, which allows a simple realization of an operative connection between the threaded spindle and the brake master cylinder, which is preferably arranged on an end face of the extruded profile.

[0007] According to an advantageous embodiment, it is provided that the transmission has a spindle transmission with a threaded spindle and a rotatably supported spindle nut, the spindle nut being rotatable in a first rotational direction and in a second rotational direction opposite to the first rotational direction, and the torsion block is formed for blocking the rotation of the threaded spindle both in the first rotational direction and in the second rotational direction. By forming the rotation block in this way, it is achieved that the threaded spindle can be displaced by rotation of the spindle nut along the displacement axis both in a first direction and in a second direction opposite to the first direction, depending on the rotational direction of the spindle nut.

[0008] Preferably, the extruded profile has at least one first anti-rotation stop oriented in a direction opposite to the first rotation direction and at least one second anti-rotation stop oriented in a direction opposite to the second rotation direction, where the first anti-rotation stop cooperates with the first anti-rotation stop of the anti-rotation element and the second anti-rotation stop cooperates with the second anti-rotation stop of the anti-rotation element. Preferably, the first anti-rotation stop and the second anti-rotation stop are part of the same extruded structure of the extruded profile. Alternatively, the first anti-rotation stop and the second anti-rotation stop are preferably part of different extruded structures of the extruded profile. Preferably, the extruded profile has a plurality of first anti-rotation stops spaced apart from one another in the circumferential direction of the extruded profile and / or a plurality of second anti-rotation stops spaced apart from one another in the circumferential direction of the extruded profile.

[0009] According to an advantageous embodiment, it is provided that the extrusion structure is a groove extending through the extrusion profile and that the radial projection of the rotation prevention element radially engages in the groove. A groove extending through the extrusion profile is, on the one hand, technically easy to realize by extrusion. On the other hand, the groove is particularly suitable for forming a twist prevention. The aforementioned first rotation prevention stop and the aforementioned second rotation prevention stop are preferably formed by different side walls of the groove. Preferably, the groove extends through the extrusion profile in the axial direction with respect to the displacement axis of the threaded spindle.

[0010] Preferably, the extruded profile has a number of grooves extending therethrough and spaced apart in the circumferential direction of the extruded profile, with two grooves being particularly preferably provided which are diametrically opposed to one another.

[0011] Preferably, the anti-rotation stop has a sliding coating, by means of which a friction-free guidance of the anti-rotation element and thus of the threaded spindle in the extruded profile can be achieved. For example, the sliding coating is a coating made of plastic, in particular made of PTFE.

[0012] According to an advantageous embodiment, it is provided that the rotation prevention element has a sliding shoe and that the sliding shoe forms a rotation stop. A friction-free guidance of the rotation prevention element and thus of the threaded spindle in the extrusion profile can also be achieved by means of the sliding shoe. Preferably, the sliding shoe is made of plastic. It is preferable if the rotation prevention element has a sliding shoe, since the aforementioned sliding coating can be dispensed with.

[0013] Preferably, the actuating device has a pressure transmitting body displaceably supported in a through-bore of the threaded spindle, in which case the pressure transmitting body is connected to an input rod of the actuating device, and the brake master cylinder can be actuated by the displacement of the pressure transmitting body. In this way, the brake master cylinder can be actuated both by means of the threaded spindle by an electric motor and by means of the pressure transmitting body by means of an input rod. By supporting the pressure transmitting body in the through-bore of the threaded spindle, a particularly advantageous connection of both the pressure transmitting body and the threaded spindle to the brake master cylinder can be achieved. In particular, both the threaded spindle and the pressure transmitting body are arranged or oriented coaxially with respect to a hydraulic piston displaceably supported in the brake master cylinder.

[0014] According to an advantageous embodiment, it is provided that the side wall of the extruded profile has a flat first mounting surface and that a controller of the operating device is arranged on the first mounting surface. Due to the flat design of the first mounting surface, it is particularly suitable for arranging the controller. In addition, a flat mounting surface can be easily realized by extrusion. Preferably, the controller is designed for controlling an electric motor.

[0015] According to an advantageous embodiment, it is provided that the side wall has a flat second mounting surface and that the electric motor is arranged on the second mounting surface. Since the second mounting surface is flat, it is particularly suitable for arranging the electric motor. In addition, a flat mounting surface can be easily realized by extrusion.

[0016] Preferably, the side wall has at least one through hole. Preferably, the through hole is formed by post-machining of the extrusion profile. For example, the through hole is milled into the side wall. In this case, the through hole in the side wall can fulfill various tasks in the operating device. Preferably, the side wall has a through hole for inserting a sensor formed for monitoring the displacement position of the threaded spindle and the pressure transmitting body. Alternatively or additionally, the side wall preferably has at least one through hole for rotatably supporting a transmission shaft of the transmission device. Alternatively or additionally, the side wall preferably has at least one through hole for passing at least one electrically conductive motor phase supply line.

[0017] The method according to the invention is characterized in that the housing together with the anti-rotation stop is produced by extrusion according to claim 13. The advantages already mentioned are obtained from this. Further advantageous features and feature combinations are evident from the above description and the claims.

[0018] The invention will now be described in more detail with reference to the drawings. [Brief description of the drawings]

[0019] [Figure 1] FIG. 2 is a perspective view of an operating device for a brake system. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a view of the housing of the operating device. [Figure 4] FIG. [Diagram 5] 1 is a diagram of a method for manufacturing a control device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] 1 is a perspective view of an actuating device 1 for a brake system 2 of a motor vehicle, not shown in detail. The actuating device 1 has a housing 3. The housing 3 is of tubular design and, in this respect, has a side wall 4 which extends circumferentially around a housing interior 5 of the housing 3. A disk-shaped housing part 7 is arranged on an end face 6 of the housing 3. In the present embodiment, the housing part 7 is fixed to the housing 3 by means of a number of fixing means 8. The housing part 7 has a number of fixing structures 9 for fixing the actuating device 1 to the bodywork of the motor vehicle.

[0021] The actuating device 1 further comprises a drive unit 10 arranged in the housing 3. The drive unit 10 comprises an electric motor 12, which is arranged in a motor housing 11 and is therefore not visible in FIG. 1. The actuating device 1 further comprises a controller 13. The controller 13 is arranged in the housing 3 on the side of the housing 3 facing away from the drive unit 10. The controller 13 is designed to control the electric motor 12. On the other end face of the housing 3 facing away from the end face 6, a brake master cylinder 14 is arranged, in which in the present embodiment two hydraulic pistons 15 are displaceably supported. If the actuating device 1 is installed in the brake system 2 as specified, the brake master cylinder 14 is fluidically connected to the slave cylinders of the friction brake devices of the brake system 2.

[0022] 2 shows a longitudinal section of the operating device 1. The operating device 1 has a gear 16. The gear 16 is operatively connected to the electric motor 12 such that the gear 16 can be driven by the electric motor 12. The gear 16 has a displaceably supported threaded spindle 17. The threaded spindle 17 projects through a through-hole 18 in the housing part 7 into the housing interior 5 of the housing 3 and is therefore partially arranged in the housing interior 5 of the housing 3. The threaded spindle 17 is displaceable along a displacement axis in a first direction 19 and in a second direction 20 opposite to the first direction 19. The directions 19 and 20 are oriented perpendicularly to the cross-section of the housing 3. The threaded spindle 17 is part of a spindle transmission 21 of the gear 16. In addition to the threaded spindle 17, the spindle transmission 21 has a rotatably supported spindle nut 22. The spindle nut 22 can be rotated in a first rotation direction 42 and in a second rotation direction 43 opposite to the first rotation direction 42. The internal toothing of the spindle nut 22 meshes with the external toothing of the threaded spindle 17. To ensure that the threaded spindle 17 is displaced instead of rotating together with the spindle nut 22 when the spindle nut 22 is rotated, a torsion prevention 23 is assigned to the threaded spindle 17. In addition to this, a rotation prevention element 24 is provided, which is fixed to the threaded spindle 17, in the present embodiment at the end of the threaded spindle 17 facing the brake master cylinder 14. According to a further embodiment, the rotation prevention element 24 is formed integrally with the threaded spindle 17. The rotation prevention element 24 cooperates with the housing 3 for the formation of the torsion prevention 23, as will be explained in more detail below. In the present embodiment, a pot-shaped feed body 25 is fixed to the rotation prevention element 24.

[0023] The actuating device 1 further comprises a pressure transmitting body 26 which is supported displaceably relative to the threaded spindle 17, the pressure transmitting body 26 also protruding through the through-bore 18 into the housing interior 5 and is therefore partially arranged in the housing interior 5 of the housing 3. The pressure transmitting body 26 is displaceable in a first direction 19 and in a second direction 20. In this embodiment, the pressure transmitting body 26 is supported in a through-bore 27 of the threaded spindle 17. According to the embodiment shown in FIG. 2, the pressure transmitting body 26 is made in several parts. To this end, the pressure transmitting body 26 comprises a rod-shaped part 28 which is arranged in the through-bore 27. In addition, the pressure transmitting body 26 comprises a pressure cap 29 which is arranged on the end of the pressure transmitting body 26 which faces the brake master cylinder 14. The pressure cap 29 is fixed to the rod-shaped part 28, in this embodiment by means of a dovetail joint. The end of the pressure transmitting body 26 which faces away from the brake master cylinder 14 is connected to an input rod 30, so that the pressure transmitting body 26 is displaceable by the input rod 30. In this embodiment, the pressure transmitting body 26 is connected to the input rod 30 by a ball joint 31. The end of the input rod 30 opposite the pressure transmitting body 26 is fixed to a brake pedal (not shown).

[0024] The brake master cylinder 14 can be actuated both by the displacement of the threaded spindle 17 and by the displacement of the pressure transmission body 26. Actuation of the brake master cylinder 14 is to be understood as the displacement of the hydraulic piston 15 in the first direction 19. This, if the actuating device 1 is installed in the brake system 2 as specified, results in a displacement of hydraulic fluid from the brake master cylinder 14 into the slave cylinder of the friction brake device, so that the friction brake device then generates a friction brake torque. In the present embodiment, the threaded spindle 17 and the pressure transmission body 26 can be or are operatively connected to the hydraulic piston 15 by means of a connecting element 32. The connecting element 32 has an elastically deformable connecting disc 33 and a rigid pressure rod 34. When the brake master cylinder 14 is actuated by the electric motor 12, the electric motor 12 acts on the hydraulic piston 15 by means of the threaded spindle 17, the anti-rotation element 24, the feed body 25 and the connecting element 32. When the brake master cylinder 14 is operated by operating the brake pedal, the brake pedal acts on the hydraulic piston 15 via the input rod 30, the pressure transmitting body 26 and the connecting element 32.

[0025] The configuration of the housing 3 will now be explained in more detail with reference to figures 3 and 4. For this purpose, figure 3 is a perspective view of the housing 3. Figure 4 shows the housing 3 in a view corresponding to the first direction 19. The housing 3 is an extruded profile 3. This means that the housing 3 is produced by extrusion. A part produced by extrusion has the same cross section everywhere in its longitudinal extension, except where the part has been subjected to post-processing. In the present embodiment, the housing 3 or the extruded profile 3 is produced from aluminium. As can be seen from the figures, in this embodiment the housing interior 5 has a circular cross section.

[0026] As mentioned above, the anti-rotation element 24 cooperates with the housing 3 for the formation of the twist stop 23. For this purpose, the housing 3 has a number of grooves 35 which extend through the side wall 4 of the housing 3 in the housing interior 5. In the present embodiment, two grooves 35 are provided which are diametrically opposite one another. The grooves 35 are oriented perpendicularly to the cross section of the housing 3 and therefore extend axially with respect to the displacement axis of the threaded spindle 17. The grooves 35 are respectively formed by a bottom 36 and a first anti-rotation stop 37 and a second anti-rotation stop 38, the anti-rotation stops 37, 38 being opposed to one another. The first anti-rotation stop 37 is oriented against a first direction of rotation 42 of the spindle nut 22. The second anti-rotation stop 38 is oriented against a second direction of rotation 43 of the spindle nut 22. In the present embodiment, the anti-rotation stops 37, 38 are oriented perpendicularly to the bottom 36. Alternatively, the anti-rotation stops 37, 38 are oriented obliquely to the base 36. For example, the angle between the base and the anti-rotation stops 37, 38 is 60° in each case. The grooves 35 are extrusion structures 35 of the extruded profile 3. This means that the grooves 35 are produced by extrusion, i.e. they are already visible in the openings of the extrusion tool used to produce the extruded profile 3. The anti-rotation element 24 has a number of radial projections 39 corresponding to the number of grooves 35. Each of the radial projections 39 radially engages with a respective other groove 35 to form the twist prevention 23. The radial projections 39 each have a first rotation stop 40 and a second rotation stop 41. The first rotation stop 40 faces the first anti-rotation stop 37 of the groove 35. The second rotation stopper 41 faces the second anti-rotation stopper 38 of the groove 35 .

[0027] When the anti-rotation element 24 and thus the threaded spindle 17 are biased by the spindle nut 22 with a torque acting in a first rotation direction 42, the first anti-rotation stop 40 of the radial projection 39 abuts against the first anti-rotation stop 37 of the groove 35. This blocks the rotation of the anti-rotation element 24 and thus the threaded spindle 17 in the first rotation direction 42. When the anti-rotation element 24 and thus the threaded spindle 17 are biased by the spindle nut 22 with a torque acting in a second rotation direction 43, the second anti-rotation stop 41 of the radial projection 39 abuts against the second anti-rotation stop 38 of the groove 35. This blocks the rotation of the anti-rotation element 24 and thus the threaded spindle 17 in the second rotation direction 43. In this way, the anti-rotation stops 40 , 41 of the anti-rotation element 24 cooperate with the anti-rotation stops 37 , 38 of the extruded profile 3 to form the twist block 23 .

[0028] In the embodiment shown in the figures, the radial projections 39 each have a sliding shoe 44 made of plastic, which in this case forms the rotation stops 40, 41. The sliding shoes 44 made of plastic ensure a friction-free guidance of the rotation prevention element 24 in the groove 35. According to a further embodiment, the groove 35 has a sliding coating, at least in the region of the rotation prevention stops 37, 38. The provision of a sliding coating also ensures a friction-free guidance of the rotation prevention element 24 in the groove 35. If a sliding coating is provided, the sliding shoes 44 are in particular omitted.

[0029] As can be seen, the extruded profile 3 or the housing 3 also has several structures that are not produced by extrusion, but by post-processing of the extruded profile 3. For example, the housing 3 has a housing step 45 milled into the side wall 4. The side wall 5 also has several through holes 46, 47, 48 formed in the area of ​​a first mounting surface 49 of the side wall 4. If the operating device 1 is assembled correctly, the control device 13 is arranged on the first mounting surface 49. The first through hole 46 of the through holes 46, 47, 48 has a rectangular shape. If the operating device 1 is assembled correctly, a sensor is arranged in the first through hole 46, which is formed for monitoring the displacement position of the threaded spindle 17 and the pressure transmitting body 26. The second through hole 47 of the through holes 46, 47, 48 has a circular shape. If the operating device 1 is assembled correctly, the transmission shaft 50 of the transmission device 17, which in this embodiment is formed as a worm shaft 50, projects from the housing interior 6 into or through the through hole 47. In particular, the transmission shaft 50 is rotatably supported by a support surface 51 defined by the second through hole 47. For example, a pivot bearing is provided which acts between the transmission shaft 50 and the support surface 51. The third through hole 48 of the through holes 46, 47, 48 is also formed in a circular shape. If the operating device 1 is assembled correctly, a number of electrically conductive motor phase supply lines 52 project through the third through hole 48 into the housing interior 5. As can be seen from FIG. 2, the extruded profile 3 or the housing 3 also has a fourth through hole 53 and a fifth through hole 54. The through holes 53 and 54 are formed in the region of the second mounting surface 55 of the side wall 4. When the operating device 1 is assembled as specified, the electric motor 12 or the drive unit 10 is disposed on the second mounting surface 55. The fourth through hole 53 is aligned with the second through hole 47. The transmission shaft 50 protrudes from the housing interior 5 into the motor housing 11 through the fourth through hole 53. That is, in this embodiment, the transmission shaft 50 protrudes through the housing 3. The fifth through hole 54 is aligned with the third through hole 48.The motor phase supply wire 52 protrudes into the motor housing 11 through the fifth through hole 54. That is, the motor phase supply wire 52 also protrudes through the housing 3. The motor phase supply wire 52 is electrically coupled to the motor winding of the electric motor 12 on the one hand and to the controller 13 on the other hand.

[0030] FIG. 5 shows a flow chart of a method for manufacturing the control device 1.

[0031] In a first step S1, the housing 3 is produced. In this case, the housing 3 is produced with the anti-rotation stops 37, 38 by extrusion. That is to say, as described above, the housing 3 is obtained as an extruded profile 3. The anti-rotation stops 37, 38 are formed by the extruded structures 35 of the extruded profile 3, in this embodiment by the grooves 35. In a second step S2, the extruded profile 3 is post-processed. For example, structures 45, 46, 47, 48, 53, 54 are milled into the extruded profile 3. In a third step S3, the gear 16 is equipped with a displaceable threaded spindle 17. In a fourth step S4, the anti-rotation element 24 is connected to the threaded spindle 17 in a non-rotatable manner. According to another embodiment, the anti-rotation element 24 is produced integrally with the threaded spindle 17. The threaded spindle 17 together with the anti-rotation element 24 is then mounted in the gear 16. In a fifth step S5, the transmission 16 is arranged such that the threaded spindle 17 is at least partially arranged in the housing 3 and such that the rotation stops 40, 41 of the anti-rotation element 24 cooperate with the anti-rotation stops 37, 38 of the extruded profile 3 to form the twist stop 23. In a sixth step S6, the electric motor 12 is operatively connected to the transmission 16 such that the transmission 16 can be driven by the electric motor 12. [Explanation of symbols]

[0032] 1 Operating device 3 Housing or extrusion profile 4 Side wall of the housing or extruded profile 12 Electric motor 13 Controller 14 Brake master cylinder 16 Transmission 17 Threaded spindle 21 Spindle transmission part 22 Spindle nut 23 Anti-twist section 24 Anti-rotation element 26 Pressure transmission body 27 Threaded spindle through hole 30 Input rod 35 Groove or extrusion structure 37 First anti-rotation stopper 38 Second anti-rotation stopper 39 Radial protrusion of anti-rotation element 40 First rotation stopper 41 Second rotation stopper 42 First rotation direction of the spindle nut 43 Second direction of rotation of the spindle nut 44 Slippery Shoes 46, 47, 48, 53, 54 Through holes 49 First mounting surface 55 Second mounting surface

Claims

1. An actuating device for a brake system having an actuable brake master cylinder (14), comprising: a transmission (16) having a displaceable threaded spindle (17), the brake master cylinder (14) being actuable by the displacement of the threaded spindle (17); an electric motor (12) for driving the transmission (16); and a housing (3) in which the threaded spindle (17) is at least partially arranged, the rotation preventing element (24) being opposed to the threaded spindle (17).

1. The operating device according to claim 1, wherein the housing (3) is an extruded profile (3) and the anti-rotation stop (37, 38) is formed by an extruded structural part (35) of the extruded profile (3).

2. The operating device according to claim 1, wherein the housing (3) is an extruded profile (3) and the anti-rotation stop (37, 38) is formed by an extruded structural part (35) of the extruded profile (3).

2. 2. An operating device according to claim 1, characterized in that the displacement axis of the threaded spindle (17) is oriented perpendicular to the cross section of the extruded profile (3).

3. 3. The operating device according to claim 1, wherein the transmission (17) comprises a spindle transmission (21) comprising the threaded spindle (17) and a rotatably supported spindle nut (22), the spindle nut (22) being rotatable in a first rotational direction (42) and in a second rotational direction (43) opposite to the first rotational direction (42), and the twist prevention portion (23) is formed for blocking the rotation of the threaded spindle (17) both in the first rotational direction (42) and in the second rotational direction (43).

4. 4. The operating device according to claim 3, characterized in that the extruded profile (3) has at least one first anti-rotation stop (37) oriented in a direction opposite to the first direction of rotation (42) and at least one second anti-rotation stop (38) oriented in a direction opposite to the second direction of rotation (42), the first anti-rotation stop (37) cooperating with a first anti-rotation stop (40) of the rotation prevention element (24) and the second anti-rotation stop (38) cooperating with a second anti-rotation stop (41) of the rotation prevention element (24).

5. 5. The operating device according to claim 1, wherein the extrusion structure (35) is a groove (35) extending through the extrusion profile (3) and a radial projection (39) of the rotation prevention element (24) radially engages with the groove (35).

6. 6. An operating device according to claim 5, characterized in that the extruded profile (3) has at least two grooves (35) spaced apart from one another in the circumferential direction of the extruded profile (3).

7. 7. An operating device according to claim 1, wherein the anti-rotation stops (37, 38) have a sliding coating.

8. 8. An operating device according to claim 1, characterized in that the rotation prevention element (24) has a sliding shoe (44) and that the sliding shoe (44) forms the rotation stopper (40, 41).

9. 9. The operating device according to claim 1, further comprising a pressure transmitting body (26) displaceably supported within a through hole (27) of the threaded spindle (17), the pressure transmitting body (26) being connected to an input rod (30) of the operating device (1), and the brake master cylinder (14) being operable by displacement of the pressure transmitting body (26).

10. 10. The operating device according to claim 1, characterized in that the side wall (4) of the extruded profile (3) has a flat first mounting surface (49) and that a controller (13) of the operating device (1) is arranged on the first mounting surface (49).

11. 11. The operating device according to claim 1, wherein the side wall (4) has a flat second mounting surface (55) and the electric motor (12) is arranged on the second mounting surface (55).

12. 12. An operating device according to any one of the preceding claims, characterized in that the side wall (4) has at least one through hole (46, 47, 48, 54, 55).

13. A method for manufacturing an actuating device for a brake system, comprising the steps of providing a housing (3) with at least one anti-rotation stop (37, 38) and a transmission (16) with a displaceable threaded spindle (17), connecting a rotation prevention element (24) to the threaded spindle (17) in a manner that the threaded spindle (17) is at least partially arranged in the housing (3) and the rotation stops (40, 41) of the rotation prevention element (24) are arranged in a front-to-rear direction such ... front-to-rear direction such that the threaded spindle (17) is at least partially arranged in the front-to-rear direction such that the threaded spindle (17) is at least partially arranged in the front-to-rear direction such that the threaded spindle (17) is at least partially arranged in the front-to-rear direction such that the threaded spindle (17) is at least partially arranged in the front-to-rear direction such that the threaded spindle (17) is at least partially arranged in the front-to-rear direction such that the threaded spindle (1 a transmission (16) arranged to cooperate with the anti-rotation stop (37, 38) of the housing (3) to form a torsion stop (23) for the threaded spindle (17), and the electric motor (12) is operatively connected to the transmission (16) such that the transmission (17) can be driven by the electric motor (12), characterized in that the housing (3) is produced together with the anti-rotation stop (37, 38) by extrusion molding.

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