System with screw device, nut and a screw part having a threaded area

Abstract

System with screw device, nut and a screw part having a threaded area, wherein the screw device has a housing part in which an driven toothed part is rotatably mounted, wherein the driving toothed part has an internal polygonal recess in which the nut is received and held in a force-fit position by means of a spring ring, wherein the spring ring has an annular base area from which spring clips project axially, wherein axial grooves are machined into the driving toothed part in the sides, in particular side surfaces, of the inner polygonal recess of the driving toothed part, into which the spring clips of the spring ring project.

Description

[0001] The invention relates to a system comprising a screw device, a nut and a screw part having a threaded area.

[0002] It is generally known that a nut can be screwed onto a threaded area using a tool.

[0003] From DD 2 59 168 A1, an automatic screwing device for screwing cases with limited accessibility is known.

[0004] A multi-sided socket wrench is known from DE 83 09 462 U1.

[0005] A device for providing and positioning screw elements is known from DD 1 44 222 A1.

[0006] The invention is therefore based on the objective of further developing an automated and safe process for unscrewing.

[0007] According to the invention, the problem is solved in the system according to the features specified in claim 1.

[0008] Important features of the invention in the system with screw device, nut and a screw part having a threaded area, in particular threaded pin or bolt, are that the screw device has a housing part in which an driving toothed part is rotatably mounted, wherein the driving toothed part has an internal polygonal recess, in particular an internal hexagonal recess, in which the nut is received and held in a force-fit position by means of a spring ring, wherein the spring ring has an annular base area from which spring clips project axially, in particular wherein the ring axis of the spring ring is aligned parallel to the axial direction, wherein at least two axial grooves are machined into the driving toothed part in particular on two sides, in particular side surfaces, of the inner polygonal recess of the driving toothed part, into which the spring clips of the spring ring project, in particular wherein the nut is positively engaged in the driving toothed part in the circumferential direction with respect to the axis of rotation of the driving toothed part, in particular wherein the radial direction, the axial direction and / or the circumferential direction is related to the axis of rotation of the driving gear part.

[0009] An advantage of this design is that the nut is held securely in place by friction and is therefore permanently retained in the driven toothed section of the screw device, regardless of the screw's orientation. An optional slider can also be used for additional securing.

[0010] In an advantageous embodiment, the spring clips are each supported at the bottom of the respective axial groove and exert elastic pressure on the nut. The advantage here is that each spring clip exerts spring force on the nut, and with a symmetrical arrangement of the spring clips around the circumference, this ensures a secure, centered, force-fit connection.

[0011] In an advantageous embodiment, the spring clips are elastically tensioned and arranged radially between the driven toothed section and the nut. The advantage here is that the nut is held in the driven toothed section by friction and yet is also positively engaged in the driving toothed section in the circumferential direction. The spring clips even allow for the reduction or prevention of any circumferential play.

[0012] In an advantageous embodiment, the respective spring clip is bent such that, with increasing axial distance from the base region, the radial distance of the spring clip relative to the axis of rotation of the driving gear section initially increases monotonically until a maximum value is reached, and thereafter decreases monotonically. It is advantageous that the spring clips lie flat, thus resulting in only a low Hertzian contact pressure.

[0013] In an advantageous embodiment, the spring ring is clip-connected to the driving toothed part. The advantage here is that a secure, positive-locking connection in the axial direction can be provided.

[0014] In an advantageous embodiment, radially outwardly extending areas protrude from the spring ring, particularly from the annular base area of ​​the spring ring. which project into axially directed recesses of the driving toothed part, which are provided on an end face of the driving toothed part, in particular wherein the areas are spaced apart from each other in the circumferential direction and / or arranged radially, In particular, all areas cover the same radial spacing range. It is advantageous that the radially projecting areas limit the spring ring in the axial direction, while the end regions of the spring clips limit the spring ring in the opposite direction. It is advantageous that the radially projecting areas provide axial limitation for the spring ring. This prevents the spring ring from slipping into the driven gear section.

[0015] In an advantageous embodiment, the axial end region of the respective spring clip, which faces away from the base region, engages behind the driving toothed part, in particular the end face of the driving toothed part spaced from the base region, in each case. in particular wherein the driving gear part is designed as a spur gear, in particular wherein the spring ring together with spring clip with end area and the areas projecting into recesses of the front face is formed in one piece and / or in one piece, in particular as a stamped and bent part made of sheet metal, In particular, the respective end section of the spring clip is bent radially. An advantage of this design is that the spring ring is positively locked to the driving gear section. For this purpose, the radially projecting sections rest against the end face of the driving gear section (designed as a spur gear) facing the base section, and the end sections rest against the other end face, i.e., the end face of the driving gear section facing away from the base section. This design also allows for quick and easy connection by simply inserting the spring ring into the driving gear section. Once a predetermined insertion depth is reached, the spring ring is released into the driving gear section.

[0016] In an advantageous embodiment, the internal polygonal recess has an internal hexagon and the nut has an external hexagonal area. It is advantageous that the nut can be positively engaged in the circumferential direction.

[0017] In an advantageous embodiment, the nut is made of a ferromagnetic material, in particular steel.

[0018] In an advantageous embodiment, the nut has a collar area that projects radially towards the external hexagon area, in particular for axial limitation of the nut. in particular where the collar area borders the external hexagon area, In particular, the axial direction is relative to the axis of rotation of the driving gear section. It is advantageous that the nut is axially limited when inserted into the driving gear section, especially the gear.

[0019] In an advantageous embodiment, the driving gear part can be driven by a driving gear part via further gears that mesh with each other, wherein the gears and the driving gear part are rotatably mounted in the screw device. The driving gear section can be driven by an electric motor of the screw device. An advantage of this is that a cost-effective drive type can be used and a high torque can be transmitted from the driving to the driven gear section.

[0020] In an advantageous embodiment, the driven toothed section can be driven by a toothed belt, which in turn can be driven by a driving toothed section rotatably mounted in the screw device. The advantage here is that a simple and cost-effective drive of the driven toothed section by the driving toothed section can be achieved.

[0021] In a preferred embodiment, the system includes a robot arm that holds the screwing device. An advantage of this design is that the screwing device can be used in different spatial orientations.

[0022] In an advantageous embodiment, the internal polygonal recess is formed continuously through the driving toothed part and / or through the screw device. An advantage of this is that no air cushion impedes the insertion of the nut.

[0023] In an advantageous embodiment, the internal polygonal recess is encompassed by a recess extending through the screw device. An advantage of this is that no air cushion impedes the insertion of the nut.

[0024] In an advantageous embodiment, the side surfaces of the inner polygonal recess, which do not have axial grooves, rest against the outer surfaces of the nut, in particular in contact with them. An advantage of this is that a large torque can be transmitted from the driving gear section to the nut.

[0025] In an advantageous embodiment, the screw device has a movable slide which has a locking tab, The locking tab is arranged below the nut in a first position of the slide in the direction of gravity, in particular such that the nut is limited by the locking tab in the direction of gravity, and the locking tab does not limit the nut in a second position of the slide, in particular the perpendicular projection of the nut in the direction of gravity into a plane whose normal direction is parallel to the direction of gravity is spaced apart from the perpendicular projection of the locking tab and / or the slide into this plane. It is advantageous that the nut received in the screw device can be secured against falling out by means of the locking tab. Only at the beginning of the screw connection between the nut and the threaded area is the locking tab retracted, thus releasing the nut for screw connection with the threaded area.

[0026] By receiving the nut in a toothed part, the externally toothed toothed part can be driven by another gear, which in turn is driven by a gear that is driven directly or via other gears by a driving toothed part.

[0027] In an advantageous embodiment, the internal polygonal recess is an internal hexagon and the nut has an external hexagonal area. The advantage here is that a positive locking mechanism exists in the circumferential direction, thus allowing the nut to be rotated by the screw device.

[0028] In an advantageous embodiment, the nut has a collar area that projects radially towards the external hexagon area, in particular for axial limitation of the nut. in particular where the collar area borders the external hexagon area, In particular, the axial direction is relative to the axis of rotation of the driving gear section. It is advantageous that the nut can only be inserted up to the point where the collar area abuts the face of the driving gear section or the collar area abuts the housing part.

[0029] In an advantageous embodiment, the slide can be driven by a linear actuator, in particular a pneumatic drive, of the screw device, in particular in a linear and / or reciprocating manner. In particular, the linear actuator, especially a pneumatic drive, is attached to and / or supported by the housing part. An advantage of this is that the screw device, including the linear actuator, can be designed in a compact form.

[0030] In an advantageous embodiment, the driving gear part can be driven by a driving gear part via further meshing gears. The driving gear element can be driven by an electric motor of the screw device. An advantage of this is that the drive can be performed with high torque.

[0031] In an advantageous embodiment, the driven toothed part can be driven by a toothed belt, which in turn can be driven by an input toothed part rotatably mounted in the screw device. The advantage here is that the driving mechanism is simple and cost-effective.

[0032] In a preferred embodiment, the system includes a robot arm that holds the screwing device. An advantage of this is that the nut can be tightened in different orientations and positions.

[0033] In an advantageous embodiment, the internal polygonal recess is formed continuously through the driving toothed part and / or through the screw device.

[0034] In another advantageous embodiment, the internal polygonal recess is encompassed by a recess extending through the screw device. The advantage here is that no air cushion forms when the nut is inserted into the recess, which would otherwise hinder insertion.

[0035] In an advantageous embodiment, the slide is arranged to be linearly movable, with a linear guide formed or attached to the housing part, which guides the slide linearly. It is advantageous that the slide can be guided on the housing part.

[0036] In an advantageous embodiment, a sliding console is connected to the housing part, wherein the slide is connected to a slide block by means of slide side parts, on which the linear actuator, in particular a plunger of the linear actuator, is supported, In particular, the slide block has a cylindrical projection which is guided in an elongated hole in the slide bracket. An advantage of this design is that the slide bracket is easy to manufacture and, together with the housing part, acts as a guide. Furthermore, a stable slide block is provided into which forces can be applied by the linear actuator, especially a pneumatic drive.

[0037] In an advantageous embodiment, the slide bracket has a non-circular recess into which a correspondingly shaped projection of the housing part extends, particularly to achieve a backlash-free and precise connection between the slide bracket and the slide mechanism. An advantage of this is that a rigid connection between the housing part and the slide bracket can be achieved.

[0038] In an advantageous embodiment, the slide is rotatably arranged relative to the housing part, with a pivot joint for the slide being formed or attached to the housing part. The advantage here is that the installation space of the system is larger in the lateral direction but smaller in the direction of the connecting line between the driving and driven gear parts.

[0039] In an advantageous embodiment, the slide is screwed and / or pinned to the slide side panels, and / or the slide block is screwed and / or pinned to the slide side panels. The advantage of this is that a stable construction is achieved.

[0040] In an advantageous embodiment, the slide has the locking tab and two lateral guide tabs of the slide, which abut the housing part and limit the slide in the transverse direction to the linear movement, in particular and thus guide it. In particular, the guide tabs on the locking tab are bent at a perpendicular angle. It is advantageous that the slide can be manufactured as a stamped and bent part from a single sheet of metal, especially as a one-piece piece, and supports both the locking and guiding functions.

[0041] In a preferred design, the slide bracket is formed as a flat stamped sheet metal part. The advantage here is that it is easy and inexpensive to manufacture.

[0042] In a preferred embodiment, the linear actuator is attached to the slide bracket. The advantage here is that, although the slide mechanism requires an elongated installation space, its lateral expansion is minimal.

[0043] Further advantages arise from the dependent claims. The invention is not limited to the combination of features of the claims. For those skilled in the art, further meaningful combinations of claims and / or individual claim features and / or features of the description and / or the figures will become apparent, in particular from the problem statement and / or the problem arising from a comparison with the prior art.

[0044] The invention will now be explained in more detail with reference to schematic illustrations: In the Fig. Figure 1 shows a first screw device according to the invention in oblique view. In the Fig. Figure 2 shows a sectional view of the screw device. In the Fig. Figure 3 shows a side view of the screw device. In the Fig. Figure 4 shows a top view of the screw device. In the Fig. Figure 5 shows an oblique view of the exploded screw device. In the Fig. Figure 6 shows a second screw device in oblique view. In the Fig. 7 is an expelling gear part 70 of a third screw device shown in oblique view. In the Fig. 8 is one for Fig. 7 proper top view shown. In the Fig. 9 is one for Fig. 7. The corresponding sectional view is shown. In the Fig. Figure 10 shows an expelling gear part 70 of a fourth screw device in oblique view. In the Fig. 11 is the nut which can be inserted into the driving toothed part 70, shown in oblique view. In the Fig. Figure 12 shows an expelling toothed part 70 of a fifth screw device in oblique view, wherein a spring ring 120 is inserted into the expelling toothed part 70. In the Fig. 13 is one for Fig. 12 proper top view shown. In the Fig. 14 is one for Fig. 12 corresponding sectional views are shown. In the Fig. 15 is one for Fig. 12. The corresponding oblique view is shown exploded.

[0045] As in the Fig. 1 and Fig. As shown in Figure 2, the screw device has a housing part 1 on which a pneumatic drive 6 is arranged, which drives a slide 3, which has a locking tab 7, via a plunger 5, so that this slide 3 is linearly movable, in particular, can be moved back and forth.

[0046] In the housing part 1, a recess, in particular a through recess, is formed in which a nut 2 can be received, wherein the nut 2 is positively connected to a driving gear of the screw device.

[0047] In a first linear position of the slide 3, the locking tab 7 secures the nut 2 positively, in particular against falling out of the recess of the housing part 1. Specifically, the locking tab 7 is arranged below the recess for this purpose.

[0048] In a second linear position of the slide 3, the locking tab 7 is retracted from the recess, and thus the nut 2 is not secured against falling out. Therefore, the nut 2 begins to move downwards and can thus be screwed onto a threaded section of a screw component, such as a threaded stud or screw, located below the recess by driving the driven toothed section.

[0049] For this purpose, gears are rotatably mounted within the housing part and are in engagement with each other, wherein a first of the gears is in engagement with the driving toothed part 8, in particular gear, and a last of the gears is in engagement with the driving toothed part, in which the nut 2 is positively engaged in the circumferential direction.

[0050] By means of a driving electric motor, which is not shown in the figures, the driving gear part 8 can be set into rotational motion and thus also the driving gear part.

[0051] The nut 2, which is placed on the threaded area and driven by the driving toothed part 8, is thus set in rotational motion by the driving toothed part and is thereby screwed onto the threaded area.

[0052] The screw device is stable and movable by a robot arm. This allows for fully automated screw connections.

[0053] The slide 3 can be arranged on the side of the housing part 1 facing away from the pneumatic drive.

[0054] The area covered by slider 3 in the direction of the linear axis overlaps with the area covered by the pneumatic drive in the direction of the linear axis.

[0055] In the Fig. The embodiment shown in 3 to 5 differs from the embodiment according to Fig. 1 and Fig. 2 the pneumatic drive in the direction of the linear axis spaced from the locking tab 7.

[0056] The slider 3 is connected to the slider console 31 by means of two side parts 32, which connect the slider 3 to a slider block 30, whereby the slider is movable in the direction of the linear axis.

[0057] The sliding console 31 is attached to the housing part 1, in particular from below, i.e. on the side of the housing part 1 facing away from the driving gear part.

[0058] The slide has the two side parts 32, the slide block 30 and the locking tab 7, in particular the slide blade, in particular wherein these parts are screwed and pinned together.

[0059] The sliding console 31 has a non-circular through hole into which a correspondingly shaped projection of the housing part 1 protrudes, so that the housing part 1 is positively connected to the sliding console at least in the direction of the linear axis.

[0060] A pin protruding from the slide block extends into an elongated hole in the slide console 31, so that the slide is guided by the slide console 31 in the direction of the linear axis, i.e., the sliding direction.

[0061] The slide bracket 31 has a narrow area in which the non-circular hole is located and a wide area on which a linear actuator, such as a pneumatic drive or the like, is mounted. The linear actuator is connected to the movable slide block 30 and supported on the slide bracket 31. Thus, the slide is arranged to be movable back and forth.

[0062] The elongated hole overlaps both the narrow and the wide area of ​​the slide bracket 31.

[0063] When the slider is moved forward, i.e. in the direction from the wide side to the narrow side, the nut 2 is secured and only released by moving the slider backward before it is screwed onto the threaded area.

[0064] As in Fig. As shown in Figure 6, in a second embodiment the slide 60 is rotatably arranged on the housing part 1 via a pivot joint 62. The locking tab 61 of the slide 60 is thus movable by a rotational movement to secure the nut 2.

[0065] The drive for the rotary movement of the slide 60 can be implemented by an electric motor, which is either mounted directly on the housing part 1 or behind the housing part 1, whereby the slide 60 is moved via rods or via a belt.

[0066] However, increased lateral space is required.

[0067] In the Fig. In the embodiment shown in 7 to 11, the nut is held magnetically by means of permanent magnets 90 being glued into recesses of the driving toothed part.

[0068] For this purpose, the driven toothed part 70 has an internal polygonal recess, in particular an internal hexagon. Radially extending depressions are eroded into two sides of the internal polygonal recess, into which the permanent magnets 90 are inserted and glued. The other sides of the internal polygonal recess are formed without eroded depressions and are therefore sufficiently load-bearing to dissipate the torque introduced when the nut 2 is tightened.

[0069] Preferably, the permanent magnets are cylindrical at 90° and the recesses are correspondingly cylindrical.

[0070] Since the nut 2 is made of a ferromagnetic material, in particular steel, it is held magnetically in the driving toothed part 70 and is thus secured against falling out, especially in any spatial rotational position of the screw device. The robot-controlled path of the screw device can therefore be executed without any restriction of its spatial orientation.

[0071] In the Fig. In the embodiment shown in Figures 12 to 15, the nut 2 is held in a force-fit position by attaching a spring ring 120 to the driving toothed part 70.

[0072] For this purpose, continuous axial grooves 121 are incorporated into the driving tooth part 70 in two side surfaces of the inner polygonal recess of the driving tooth part.

[0073] The spring ring 120 has an annular base region from which radially outwardly extending ray-like areas 151 project, in particular radially outward. In addition, spring clips 150 project axially from the base region, the respective end region being bent radially outward and spaced apart from the base region.

[0074] The spring clips 150 of the spring ring 120 engage in the axial grooves 121 during the insertion of the spring ring 120 into the driving toothed part 70 and are elastically tensioned, so that at the end of the insertion process the end areas engage behind the driving toothed part 70, in particular and bear against the face of the driving toothed part 70.

[0075] Preferably, the spring clips 150 have a bend directed in the radial direction.

[0076] When the nut 2 is inserted into the recess of the driven toothed part 70, the radial outer surfaces, in particular the sides of the external hexagonal surface area of ​​the nut 2, bear against the spring clips 150, which are thereby further elastically deformed. The spring clips 150 are elastically deformed by the nut 2 in the radial direction.

[0077] In this way, the nut 2 is held in the driving toothed part 70 by elastic deformation of the spring clips 150.

[0078] When the driven toothed part 70 is rotated, sufficient torque is transmitted through those side surfaces of the internal polygonal recess of the driven toothed part 70 which do not have axial grooves 121.

[0079] The radial areas 151 lie in correspondingly shaped recesses on the face of the driving toothed part 70. This enables precise positioning and alignment of the spring ring 120.

[0080] The spring ring 120 is manufactured as a stamped and bent part from a sheet of metal.

[0081] In further embodiments according to the invention, an electromagnet is used instead of a permanent magnet.

[0082] In further embodiments according to the invention, the nut 2 is held in a force-fit position by means of the spring ring 120 in accordance with Fig. 12 to 15. However, to increase safety, a linearly movable or rotaryally movable slide is still required according to the Fig. Numbers 1 to 6 are available. Reference symbol list 1 housing part 2 mother 3 sliders 4 Locking part 5 pestles 6 pneumatic drives 7 locking tab 8 driving gear part 30 sliding block 31 Sliding console 32 Sliding side panel 60 sliders 61 latch 62 Swivel joint 70 driving gear part 90 permanent magnet 100 edges 120 spring washers 121 Axial groove 150 spring clips 151 radial areas QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] DD 2 59 168 A1

[0003] DE 83 09 462 U1

[0004] DD 1 44 222 A1

[0005]

Claims

[1] System, in particular screw system, with screw device, nut and a screw part having a threaded area, in particular threaded pin or bolt, wherein the screw device has a housing part in which a driven toothed part is rotatably mounted, characterized by , that the driven toothed part has an internal polygonal recess, in particular a hexagonal recess, in which the nut is received and held in a force-locking manner by means of a spring ring, wherein the spring ring has an annular base region on which spring clips protrude axially, in particular wherein the ring axis of the spring ring is aligned parallel to the axial direction, wherein in particular two sides, in particular side surfaces, of the inner polygonal recess of the output gear part, axial grooves are machined into the output gear part, into which the spring clips of the spring ring protrude, in particular, wherein the nut is positively received in the driven toothed part in the circumferential direction relative to the axis of rotation of the driven toothed part, in particular wherein the radial direction, the axial direction and / or the circumferential direction is related to the axis of rotation of the driven toothed part. [2] Screwing device according to claim 1, characterized by , that the spring clips are each supported on the groove bottom of the respective axial groove and press elastically onto the nut, and / or that the spring clips are elastically tensioned and are arranged radially between the driven toothed part and the nut. [3] Screwing device according to one of the preceding claims, characterized by that the respective spring clip is bent in such a way that with increasing axial distance from the base area, the radial distance of the spring clip relative to the axis of rotation of the output gear part initially increases monotonically until a maximum value is reached and then decreases monotonically. [4] Screwing device according to one of the preceding claims, characterized by that the spring ring is clip-connected to the driven gear part. [5] Screwing device according to one of the preceding claims, characterized by , that on the spring ring, in particular on the annular base area of ​​the spring ring, areas extending radially outwards protrude, which protrude into the axially directed recesses of the driven toothing part on one end face of the driven toothing part, in particular wherein the regions are spaced apart from one another in the circumferential direction and / or are arranged radially, in particular where the areas all cover the same radial distance range. [6] Screwing device according to one of the preceding claims, characterized by , that the axial end region of the respective spring clip facing away from the base region engages behind the driven toothed part, in particular the end face of the driven toothed part spaced from the base region, in particular wherein the driven gear part is designed as a spur gear, in particular wherein the spring ring together with the spring clip with the end region and the regions (151) projecting into recesses in the end face are formed in one piece and / or in one part, in particular as a stamped and bent part made of sheet metal. in particular wherein the respective end region of the respective spring clip is bent in a radial direction. [7] Screwing device according to one of the preceding claims, characterized by that the inner polygonal recess is a hexagon socket and the nut has an external hexagon area. [8] Screwing device according to one of the preceding claims, characterized by , that the nut is made of a ferromagnetic material, in particular steel, and / or that the nut has a collar area that projects radially towards the external hexagon area, in particular for the axial limitation of the nut, in particular wherein the collar area borders on the external hexagon area, in particular wherein the axial direction is related to the axis of rotation of the output gear part. [9] Screwing device according to one of the preceding claims, characterized by , that the output gear part can be driven by a driving gear part via further meshing gears, wherein the gears and the driving gear part are rotatably mounted in the screw device, wherein the driving toothed part can be driven by an electric motor of the screwing device, or that the output toothed part is driven by a toothed belt which is driven by an input toothed part rotatably mounted in the screw device. [10] Screwing device according to one of the preceding claims, characterized by that the system has a robot arm which holds the screwing device. [11] Screwing device according to one of the preceding claims, characterized by , that the internal polygonal recess is formed continuously through the driven toothed part and / or through the screw device or that the inner polygonal recess is enclosed by a recess passing through the screw device. [12] Screwing device according to one of the preceding claims, characterized by that side surfaces of the inner polygonal recess, on which no axial grooves are eroded, bear against the outer surfaces of the nut, in particular in a touching manner. [13] Screwing device according to one of the preceding claims, characterized by , that the screw device has a movably arranged slider which has a locking tab, wherein the locking tab is arranged in a first position of the slider in the direction of gravity below the nut, in particular so that the nut is delimited in the direction of gravity by the locking tab, and the locking tab does not delimit the nut in a second position of the slider, in particular so that the vertical projection of the nut in the direction of gravity into a plane whose normal direction is aligned parallel to the direction of gravity is spaced from the vertical projection of the locking tab and / or the slider into this plane. [14] Screwing device according to one of the preceding claims, characterized by , that the slider is driven by a linear actuator, in particular a pneumatic drive, the screw device, in particular linear and / or reciprocating, in particular wherein the linear actuator, in particular pneumatic drive, is attached and / or supported on the housing part. [15] Screwing device according to one of the preceding claims, characterized by , that the slider is arranged to be linearly movable, wherein a linear guide is formed or attached to the housing part, which guides the slider linearly, and / or that a slider console is connected to the housing part, wherein the slide is connected by means of slide side parts to a slide block on which the linear actuator, in particular a plunger of the linear actuator, is supported, in particular wherein the slide block has a cylindrical projection which is guided in a slotted hole of the slide bracket, and / or that the slide bracket has a non-circular recess into which a correspondingly shaped elevation protrudes, in particular to achieve a play-free and precisely fitting connection between the slide bracket and the slide device, and / or that the slide is arranged to be rotatable relative to the housing part, wherein a rotary joint for the slide is formed or attached to the housing part, and / or that the slider is screwed and / or pinned to the slider side parts and / or the slide block is screwed and / or pinned to the slide side parts, and / or that the slider has the locking tab and two lateral guide tabs, which rest on the housing part and limit the slider in the transverse direction to the linear movement in particular and thus guide, in particular wherein the guide tabs on the locking tab are bent at a vertical bending angle, and / or that the slider console is designed as a flat stamped sheet metal part, and / or that the linear actuator is attached to the slider console.

Images