Diverting device for a traction cable of a cable-type window regulator

Abstract

The invention relates to a diverting device (20) for a traction cable (14) of a cable-type window regulator (2), the diverting device comprising a ring-shaped cable pulley (28), a support (26) for the cable pulley (28), and a support-mounted bearing journal (30) for rotatably bearing the cable pulley (28), wherein the cable pulley (28) has an encircling running channel (32) for the traction cable (14), a central bearing opening (34), and a number of latching tongues (48) that project radially into the bearing opening (34), wherein the cylindrical or hollow cylindrical bearing journal (30) has an encircling latching groove (52) which can be latched or clipped together with the latching tongues (48) to produce a snap-action connection, wherein the bearing journal (30) has a notch (56) in the latching groove (52), and wherein the notch (56) is designed such that, if the cable pulley (28) is placed with the bearing opening (34) onto the bearing journal (30) and rotated, and an incompletely latched or clipped latching tongue (48) is moved over the notch, the latching tongue (48) latches or clips, owing to its mechanical preload, into the latching groove (52).

Description

[0001] Description

[0002] Deflection device for a pull rope of a cable window lifter

[0003] The invention relates to a deflection device for a pull cable of a cable window lifter, comprising a cable pulley for deflecting the pull cable and a bearing pin for rotatably supporting the cable pulley. It further relates to a cable window lifter and a door module for a vehicle door.

[0004] Today, movable vehicle windows are typically moved between a closed and an open position by electrically or electric-motor-operated actuators known as (vehicle) window lifters. Such a window lifter typically comprises an (electric) actuator motor and an actuator mechanism that connects the actuator motor to the window pane, i.e., couples it to the power transmission, and is assigned to a vehicle door or vehicle body.

[0005] Deflection elements, such as pulleys or cable pulleys, are regularly used on components of a window lift assembly to redirect the drive force for adjusting the window pane. Pull cables are typically used and redirected. These transfer the drive force from a drive to the window pane or to the connected drivers in order to raise or lower the window pane inside the vehicle door. Window lifters with such cable mechanisms are also referred to below as cable-operated window lifters or cable window lifters.

[0006] Preferably, the deflection is achieved by means of cable pulleys provided on the guide rails of the window lifter, which are mounted on the guide rails so that they can rotate around a pivot axis. Various fastening elements, such as screws or stepped bolts, are used for the pivoting attachment. These are guided centrally through the cable pulley and can be rotated around their central axis.

[0007] For example, DE 10 2020 204 027 A1 discloses a deflection device for a cable window lifter in which the cable pulley can be clipped or locked to a raised bearing pin. In the assembled state, a rotatable or pivotable snap connection (snap connection, clip connection) is thus realized, eliminating the need for additional components to hold the cable pulleys.

[0008] Such pulleys, also known as clip-on pulleys, are joined to the bearing journal manually or automatically. It may happen that not all locking or clip hooks are fully engaged, thus creating the risk that the snap connection could come loose again.

[0009] The invention is based on the object of providing a particularly suitable deflection device for a pull cable of a cable window lifter. In particular, the deflection device should prevent, as far as possible, the snap connection of a clip-on cable pulley from coming loose. Furthermore, a suitable cable window lifter with such a deflection device and a suitable door module with such a cable window lifter are to be provided.

[0010] This object is achieved according to the invention with regard to the deflection device having the features of claim 1, with regard to the cable window lifter having the features of claim 8, and with regard to the door module having the features of claim 9. Advantageous embodiments, further developments, and variants are the subject of the dependent claims (subclaims). The advantages and embodiments cited with regard to the deflection device are also transferable mutatis mutandis to the cable window lifter and / or the door module, and vice versa. The conjunction "and / or" is to be understood here and below in such a way that the features linked by means of this conjunction can be implemented both jointly and as alternatives to one another.

[0011] The deflection device according to the invention is intended for deflecting a traction cable of a cable window lifter, and is suitable and configured for this purpose. The deflection device comprises an annular cable pulley (deflection pulley) and a support (support component), as well as a support-side bearing pin for rotatably supporting the cable pulley.

[0012] The support is preferably made of plastic, i.e., it is particularly designed as a plastic part. Alternatively, the support can be a guide rail of the cable window lifter, for example, made of steel or aluminum, with the bearing pin being, in particular, a molded or extruded part of the guide rail or a bearing pin associated with it, for example, joined to a door module or the like.

[0013] The cable pulley has a circumferential groove for the traction cable and a central bearing opening (ring opening). The cable pulley is designed, in particular, with an inner ring wall surrounding the central bearing opening and with an outer ring wall with the circumferential groove (cable or guide groove) for the traction cable. The cable pulley further has a number of circumferentially arranged, preferably evenly distributed, locking tongues that protrude radially inward into the bearing opening. The cable pulley is therefore designed, in particular, as a clip-on cable pulley (clip-on pulley).

[0014] The carrier-side bearing journal forms the physical bearing axis (axis of rotation) of or for the cable pulley. The particularly cylindrical or hollow-cylindrical bearing journal has a circumferential locking groove, which is introduced as a radial recess running tangentially into an outer circumference of the bearing journal. The locking groove is therefore introduced in particular as a radial annular groove into a lateral surface of the cylindrical or hollow-cylindrical bearing journal. The annular cable pulley is joined or can be joined to the bearing journal in a snap connection (locking connection, clip connection). In other words, the cable pulley is directly clipped or latched onto the bearing journal in the assembled or joined state. For this purpose, the locking tongues on the cable pulley side latch or clip into the locking groove of the bearing journal, creating the snap connection. As a result, the cable pulley is held positively and / or non-positively to the bearing journal.

[0015] A "positive connection" or a "positive connection" between at least two interconnected parts is understood here and below in particular to mean that the interconnected parts are held together at least in one direction by a direct interlocking of the contours of the parts themselves or by an indirect interlocking via an additional connecting part. The "blocking" of mutual movement in this direction is therefore due to the shape.

[0016] A "positive connection" or a "positive connection" between at least two interconnected parts is understood here and below in particular to mean that the interconnected parts are prevented from sliding against each other due to a frictional force acting between them. If a "connecting force" causing this frictional force (this means the force that presses the parts against each other, for example, a screw force or the force of gravity itself) is missing, the positive connection cannot be maintained and can therefore be released.

[0017] Inner wall sections are formed between the locking tongues which, when the pulley is snapped into a connection with the bearing journal, form a sliding bearing between the pulley and the bearing journal, rest against the journal. The sliding bearing makes the snap connection rotatable, meaning the pulley is rotatably mounted on the bearing journal. In the snap connection, the locking tongues engage in the locking groove on the free end and are guided tangentially along the locking groove when the pulley rotates. In the snap connection, when the locking tongues of the pulley are snapped or clipped into the circumferential locking groove of the bearing journal, the locking tongues on the pulley side assume their original normal position, which existed before joining.In other words, the locking tabs on the pulley side are in a normal position before the joining process. During the joining process, they deflect radially in a flexible manner to create the snap connection, and then return to their normal position in the snap connection. This ensures that the locking tabs in the snap connection do not rest on the bearing journal in a spring-elastic manner with a certain pressing force and corresponding friction force. This prevents unwanted abrasion of the locking tabs or the bearing journal and the resulting running noise.

[0018] Advantageously, the deflection device is thus practically only two parts and therefore has few components. Furthermore, the pulley is particularly easy to assemble and can preferably be assembled automatically. Furthermore, there is virtually no wear on the traction cable and / or the pulley's groove, and virtually no noise is generated between the traction cable and the pulley. Furthermore, the pulley bearing can be designed with grease pockets for a particularly flexible and smooth sliding action. For this purpose, for example, an annular groove for accommodating (lubricating) grease is incorporated into the bearing journal, particularly coaxially with the locking groove.

[0019] In the event that the locking tongues do not fully engage with the locking groove during assembly, or partially detach from the snap connection during operation, the affected locking tongues are in an at least partially bent (up) state. The not completely rusted locking tongues therefore have a certain mechanical (pre)tension and, at their free ends, rest on the outer circumference of the bearing journal, axially offset from the locking groove. According to the invention, the bearing journal or the locking groove has a notch. In other words, a groove wall of the locking groove is provided with a notch in sections.According to the invention, the notch is designed such that when the cable pulley is placed with the bearing opening on the bearing journal and is rotated, and a locking tongue that is not fully engaged or clipped is moved over the notch, the locking tongue engages or clips into the locking groove due to its mechanical pretension.

[0020] In other words, a defined notch is created at the mating interface to the clip pulley. If the clip pulley is now rotated and a not completely rusted locking tongue moves over the notch, the locking tongue snaps into place due to its own preload. The assembly error or the not completely rusted locking tongue is thus automatically corrected by the fulfillment of the cable pulley's main function, the rotational movement. According to the invention, a self-aligning rotating or turning snap connection is thus realized between the cable pulley and the bearing journal. This forms a particularly suitable deflection device. Furthermore, this counteracts the loosening of the snap connection during operation, since loose locking tongues automatically clip back into the snap connection upon rotation.

[0021] Here and in the following, a "notch" is understood to mean a recess or relief of a specific depth that opens toward the outer circumference or edge of the workpiece. The notch is thus a type of step or ledge, or a laterally open pocket in the workpiece.

[0022] The terms “axial” or “axial direction” are understood here and below to mean a direction parallel (coaxial) to the axis of rotation of the cable pulley, i.e. along a longitudinal direction of the bearing journal. Accordingly, the terms “radial” or “radial direction” are understood here and below to mean a direction oriented perpendicular (transverse) to the axis of rotation of the cable pulley, along a radius of the cable pulley or the bearing journal. The terms “tangential” or “tangential direction” are understood here and below to mean a direction along the circumference of the cable pulley or the bearing journal (circumferential direction, azimuthal direction), i.e. a direction perpendicular to the axial direction and the radial direction. The locking tongues on the cable pulley side are formed in a suitable design onto the inner ring wall of the cable pulley. In a particularly preferred embodiment, the locking tongues project axially from the inner ring wall and are radially inward, i.e. towards the rotation orOriented towards the bearing axis of the pulley.

[0023] In a practical further development, the notch is incorporated axially into the bearing journal. In other words, the notch extends axially from the locking groove along the bearing journal. The notch of the bearing journal or the locking groove is thus designed in particular as a partially axial widening of the radially directed and tangentially running locking groove. This means that the notch runs along the insertion or joining direction of the cable pulley, in particular along the bending direction of the locking tongues. The free end of a locking tongue that is not fully engaged or clipped in is bent axially, wherein the notch is axially sufficiently dimensioned to "catch" or "thread" the bent free end into the radial recess or pocket of the notch when the cable pulley rotates.

[0024] In a particularly suitable embodiment, the notch has an approximately trapezoidal shape in the axial direction along the tangential direction of the bearing journal. This means that a bevel is introduced into the locking groove wall along the tangential direction, which increases the axial diameter of the locking groove up to the width of the notch, and that a bevel with the opposite inclination is then provided, which tapers the axial diameter back to the diameter of the locking groove. A tangential section between the bevels has a tangential length or arc length that corresponds at least to the width of a locking tongue. During rotation, a locking tongue-free end that rests against the outer circumference of the bearing journal and is bent up or not engaged / clipped in is clipped into the radial recess of the notch in this tangential section.As a result of the rotation, the end free of the locking tongue slides along the slope into the locking or clipping position in the locking groove. In other words, the slopes of the trapezoidal shape act as an insertion or clipping aid into the locking groove. The cable pulley is expediently made of plastic, in particular of a polymer, for example polyetheretherketone (PEEK), or polyamide (PA) or polyoxymethylene (POM). In an advantageous embodiment, the cable pulley is designed in particular as an injection-molded part. A metal sleeve, in particular an over-molded one, can be inserted, in particular pressed, into the central bearing opening of the cable pulley. This enables a particularly large inner diameter of the central bearing opening (bearing diameter) with minimal material usage for the annular cable pulley.

[0025] In an advantageous embodiment, the bearing journal is a cylindrical or hollow-cylindrical molded part of the support, i.e., formed directly from the support material. In other words, the bearing journal is integrally formed, i.e., monolithically, onto the support. Alternatively, the bearing journal is a molded or extruded part of the guide rail that then forms the support, or a bearing pin associated with it, with a shaft and a head at one end of the shaft.

[0026] The cable window lifter according to the invention is intended for a motor vehicle, in particular for a side door of the motor vehicle, and is suitable and configured therefor. By means of the cable window lifter, a vehicle window to be adjusted can be moved between an open position and a closed position. The cable window lifter has a support or a support component and a (flexible) pull cable for transmitting an adjusting force for adjusting the window pane. The cable window lifter further has at least one deflection device as described above, wherein the support of the cable window lifter also forms the support of the deflection device. This results in a particularly suitable and reliably mountable cable window lifter.

[0027] The door module according to the invention is intended for installation in a vehicle door, and is suitable and configured for this purpose. The door module comprises a carrier plate as an assembly or (door) module carrier, on which functional components of the vehicle door, such as a cable window lifter as described above, are pre-assembled or can be pre-assembled. The carrier plate can form the support for the cable window lifter or the deflection device. The door module is intended to be installed between an outer door skin (door panel) and an inner door cover (inner door panel) of the vehicle door, with the carrier plate, for example, implementing a wet / dry compartment separation of the vehicle door.

[0028] Exemplary embodiments of the invention are explained in more detail below with reference to a drawing. In the drawings:

[0029] Fig. 1 shows a schematic representation of a cable window lifter,

[0030] Fig. 2 in plan view a door module with a cable window lifter with a deflection device,

[0031] Fig. 3 shows a perspective view of section III according to Fig. 2 with the deflection device in a partially disassembled state,

[0032] Fig. 4 shows a perspective view of a section of the deflection device in an assembled state,

[0033] Fig. 5 shows a perspective view of the deflection device, Fig. 6 shows a perspective view of the deflection device without a pulley,

[0034] Fig. 7 shows a sectional view of the deflection device in a properly assembled state, and

[0035] Fig. 8 shows a sectional view of the deflection device in a state with an assembly error.

[0036] Corresponding parts and sizes are always provided with the same reference symbols in all figures.

[0037] Fig. 1 shows a simplified and schematic representation of an electric cable window lifter 2 as an adjusting device for a (vehicle) window pane 4 of a vehicle door (not shown in detail) of a motor vehicle. The window lifter 2 has a servomotor (window lifter drive, adjustment drive) 6, which acts on the window pane 4 via an adjusting mechanism 8. The adjusting mechanism 8 has a guide rail 10 and a driver (rail slider) 12 coupled to the window pane 4.

[0038] In the illustrated embodiment, the window lifter 2 is designed as a single-guided cable window lifter and is also referred to as such below. The adjusting mechanism 8 is designed as a cable-operated adjusting mechanism and, in addition to the guide rail 10, has a pull cable 14.

[0039] The actuator motor 6 of the cable window lifter 2 drives a cable drum 18 of the actuating mechanism 8 via a worm or spur gear 16. The traction cable 14 of the cable pull is arranged on the cable drum 18 in such a way that the traction cable 14 is wound up and unwound when the cable drum 18 rotates as a result of the gear 16.

[0040] An upper deflection device 20 and a lower deflection device 22 are attached to the guide rail 10 and are arranged on the opposite (rail end) sides. The traction cable 14 of the cable pull is guided around the deflection devices 20, 22.

[0041] When the actuator motor 6 is actuated, the window pane 4 is moved to its (pane) position P. The window pane 4 is reversibly movable between a closed position S, which represents the highest possible position P, and an open position O, which represents the lowest possible position P. In these positions S and O, the window pane 4 is indicated by dashed lines in Fig. 1. In contrast, the window pane 4 is shown in a half-open intermediate position by solid lines.

[0042] The illustration in Fig. 2 shows a plan view of a door module 24 for a vehicle door. The door module 24 has a support plate, referred to below as the support 26, as an assembly support or module support. The support 26 is advantageously made of a plastic and is thus a plastic component. Mounted on the support 26 is a two-strand cable window lifter 2 with two (essentially) parallel guide rails 10, on each of which a driver (rail slider) 12 is guided for sliding movement. The drivers 12 are connected to the traction cable 14 as a flexible traction means, which is deflected several times and coupled to the electromotive servomotor 6.

[0043] A cable pulley (deflection pulley) 28 is provided as the deflection device 20, which is rotatably mounted on a support-side bearing pin 30. The bearing pins 30 are preferably formed from the material of the support 26. In other words, the respective bearing pin 30 is formed (molded) from the support material itself as a cylindrical or hollow-cylindrical shaped body.

[0044] In the exemplary embodiment, semicircular, rotationally fixed deflection elements are provided as deflection devices 22 in the region of the lower rail ends of the guide rails 10, which deflection devices 22 are preferably also formed from the material of the support 2. Via these rotationally fixed deflection elements 22 and via the rotatably mounted cable pulleys 28, the traction cable 14 is deflected via traction cable sections running along the guide rails 10 into traction cable sections running diagonally between the guide rails 10 and crossing each other. The servo motor 6 is arranged in one of these diagonal traction cable sections. Instead of the rotationally fixed deflection elements 22, cable pulleys also rotatably mounted on the support side can be provided in the region of the lower rail ends of the guide rails 10.

[0045] “Axial” or an “axial direction A” is understood here and below to mean, in particular, a direction parallel (coaxial) to a rotational axis D of the cable pulley 28, i.e., along a longitudinal direction of the bearing journal 30. Correspondingly, “radial” or a “radial direction R” is understood here and below to mean, in particular, a direction oriented perpendicular (transversely) to the rotational axis D of the cable pulley 28 along a radius of the cable pulley 28 or the bearing journal 30. “Tangential” or a “tangential direction T” is understood here and below to mean, in particular, a direction along the circumference of the cable pulley 28 or the bearing journal 30 (circumferential direction, azimuthal direction), i.e., a direction perpendicular to the axial direction A and the radial direction R.

[0046] Fig. 3 shows the deflection device 20 in a pre-assembled state in which the cable pulley 28 is not yet joined to the bearing pin 30, whereas Fig. 4 shows the deflection device 20 in a joined state in which a snap connection between the cable pulley 28 and the bearing pin 30 is (completely) established. In the snap connection, the cable pulley 28 is directly clipped or latched onto the bearing pin 30. The deflection device 20 essentially consists only of the cable pulley 28 for deflecting a traction cable 14 of the cable window lifter 2 and the support-side bearing pin 30, i.e., formed from the support 26, as a pivot bearing for the cable pulley 28.

[0047] The cable pulley 28 has a running groove 32 for the traction cable 14 and a central bearing opening 34. The cable pulley 28 has the shape of a ring with a radially inner ring wall 36 surrounding the central bearing opening 34 and a radially outer ring wall 38. The circumferential running groove (cable or guide groove) 32 for the traction cable 14 is formed into this.

[0048] An annular space 40 is formed between the inner ring wall 36 and the outer ring wall 38 of the cable pulley 28. In this exemplary embodiment, this space is designed as a bead (bead-like). In other words, the cable pulley 28 in this embodiment has a tapered cross-sectional shape in the axial direction A. However, the annular space 40 can also be omitted, i.e., it can be filled with plastic material, in particular that of the cable pulley 28.

[0049] The support-side bearing pin 30, shown individually in Fig. 6, forms the physical bearing axis (axis of rotation) D of the cable pulley 28 and is formed from the support material as a hollow cylindrical molded part of the support 2. The bearing pin 30 has, between an inner wall 42 and an outer wall 44 coaxial therewith, a number of radial ribs 46 connecting these. As can be seen, for example, from Figures 3 to 5, the cable pulley 28 has a number of locking tongues 48, six (6) in the exemplary embodiment, arranged evenly distributed around the circumference. These locking tongues 48 on the cable pulley side are molded onto the inner ring wall 36 of the cable pulley 28. Relative to the axis of rotation D, the locking tongues 28 of the inner ring wall 36 and here also of the outer ring wall 38 protrude axially and are directed radially inward, so that the locking tongues 48 protrude radially into the bearing opening 34. Wall sections (inner wall or pulley sections) 50 are formed between the locking tongues 48.In the joined state after the snap connection of the cable pulley 28 has been established, these rest against the bearing journal 30 and, as a corresponding component of the ring inner wall 36, form a particularly low-friction sliding bearing between the cable pulley 28 and the bearing journal 30.

[0050] The locking tongues 48 on the pulley side engage or clip into a corresponding (circumferential) locking groove (annular groove) 52 of the bearing journal 30, creating a snap connection (Fig. 4, Fig. 5). Due to the locking groove 52, the bearing journal 30 has an approximately mushroom-shaped free end. During the process of creating the snap connection, the rope pulley 28 is placed or plugged axially onto the bearing journal 30 from above. In the process, the spring-elastic locking tongues 48 deflect radially and axially and are thereby mechanically preloaded. Once the locking tongues 48 on the pulley side of the rope pulley 28 are clipped into the locking groove 52 of the bearing journal 30, they return to the (relaxed) normal position shown in Fig. 4 and Fig. 5. This prevents unwanted abrasion of the locking tongues 48 or the bearing pin 30 and thus running or disturbing noises.

[0051] The cable pulley 28 is preferably made of plastic, for example a polymer. Polyetheretherketone (PEEK), polyoxymethylene (POM), and polyamide (PA) are particularly suitable.

[0052] Coaxial with the locking groove 52, an annular groove 54 for accommodating grease (grease reservoir) can be introduced into the bearing journal 30. During the rotational movement of the cable pulley 28, the grease penetrates between its running or bearing surface (inner ring wall 36) and the running or bearing surface of the bearing journal 30 (outer wall 44 axially above and below the annular groove 54). This makes the plain bearing formed between the cable pulley 28 and the bearing journal 30 particularly low-friction.

[0053] The bearing pin 30 or the locking groove 52 has a notch 56, which in this embodiment extends over approximately one-sixth of the locking groove circumference. The notch 56 is an axially extending pocket or recess opening toward the outer circumference of the bearing pin 30 and having a radial depth corresponding to the locking groove 52.

[0054] In the event that the locking tongues 48 do not fully engage with the locking groove 52 during assembly, or partially detach from the snap connection during operation, the affected locking tongues 48 are in a bent (up) state. The sectional view in Fig. 6 shows the deflection device 20 in the assembled state, with Fig. 7 showing the deflection device 20 in such a not completely snap-connected state. The not completely rusted or clipped locking tongues 48 have a certain mechanical (pre-)tension and rest on the outer circumference of the bearing journal 30, i.e. on the outer wall 44, at their free ends, axially offset from the locking groove 52. In the illustration in Fig. 8, for example, the locking tongue 48 shown on the left is not rusted into the locking groove 52, so that the cable pulley 28 is tilted relative to the support 26.

[0055] The rotatable snap connection is designed to be self-correcting for such assembly errors. For this purpose, a groove wall of the locking groove 52 is provided with a notch 56 in sections. The notch 56 is designed such that when the cable pulley 28 is placed with the bearing opening 34 on the bearing journal 30 and rotated, and a locking tongue 48 that is not completely rusted or clipped is moved over the notch 56, the locking tongue 48 rusts or clips into the locking groove 52 due to its mechanical preload.

[0056] The notch 56 is formed on an axially upper groove wall of the locking groove 52—i.e., further spaced from the carrier 2—as a result of which the axial diameter or the axial height of the locking groove 52 is increased upwards in sections. As can be seen, for example, in Fig. 5 and Fig. 6, the notch 56 has an approximately trapezoidal shape in the axial direction A along the tangential direction T. In particular, the notch 56 has two axially inclined bevels 58, 60 and a section 62 arranged therebetween, running parallel to the tangential direction T.

[0057] The bevel 58 has a pitch oriented along the axial direction A and thus increases or enlarges the axial height of the locking groove 52 along the tangential direction T. The locking groove 52 is thus widened in the axial direction A. As a result, locking tongues 48 that are not fully clipped can be "caught" or "threaded" when sliding along the outer wall 44 when the cable pulley 28 is rotated about the rotation axis D. The tangential section 62 has, for example, a tangential length that corresponds to the tangential width of a locking tongue 48. The bevel 60 has a pitch opposite to the bevel 58, whereby the axial height of the locking groove 52 along the tangential direction T is returned to the normal value. As a result of the rotation, the locking tongue free end clipped into the section 62 slides along the slope 60 into the locking or clipping position in the locking groove 52.In other words, the bevels 58, 60 of the trapezoidal shape act as an insertion or clipping aid into the locking groove 52. The trapezoidal shape with the two bevels 58, 60 ensures that the capture of the not (fully) clipped locking tongues 48 is ensured in the same way in both directions of rotation of the cable pulley 28.

[0058] The notch 56 is tangentially dimensioned to be at least as wide as a locking tongue 48, with additional tangential play preferably being provided. For example, an additional play of 0.2 mm is provided. In one conceivable dimension, the smallest width of the notch 56 is approximately 4.2 mm. The axial height of the notch 56 is dimensioned approximately to the height of the straight section of the approximately mushroom-head-shaped bearing pin 30. For example, the notch 56 is approximately 0.7 mm high. The claimed invention is not limited to the exemplary embodiments described above. Rather, other variants of the invention can also be derived therefrom by a person skilled in the art within the scope of the disclosed claims, without departing from the subject matter of the claimed invention.In particular, all individual features described in connection with the various embodiments can also be combined in other ways within the scope of the disclosed claims without departing from the subject matter of the claimed invention.

[0059] List of reference symbols

[0060] 2 cable window lifters

[0061] 4 window pane

[0062] 6 Actuator

[0063] 8 Adjusting mechanism

[0064] 10 Guide rail

[0065] 12 carriers

[0066] 14 Pull rope

[0067] 16 worm-Z-spur gear units

[0068] 18 rope drum

[0069] 20 deflection device

[0070] 22 Deflection device

[0071] 24 door module

[0072] 26 carriers

[0073] 28 pulley

[0074] 30 bearing journals

[0075] 32 groove

[0076] 34 Warehouse opening

[0077] 36 inner ring wall

[0078] 38 Ring outer wall

[0079] 40 annular space

[0080] 42 interior wall

[0081] 44 Exterior wall

[0082] 46 Radial rib

[0083] 48 locking tongue

[0084] 50 wall section

[0085] 52 locking groove

[0086] 54 ring groove

[0087] 56 Notch

[0088] 58 slopes

[0089] 60 slope

[0090] 62 Section A Axial direction

[0091] R Radial direction

[0092] T Tangential direction

Claims

Claims 1. Deflection device (20) for a traction cable (14) of a cable window lifter (2), comprising an annular cable pulley (28), a support (26) for the cable pulley (28), and a support-side bearing pin (30) for rotatably supporting the cable pulley (28), - wherein the cable pulley (28) has a circumferential groove (32) for the traction cable (14) and a central bearing opening (34) as well as a number of locking tongues (48) projecting radially into the bearing opening (34), - wherein the cylindrical or hollow-cylindrical bearing pin (30) has a circumferential locking groove (52) which can be locked or clipped to the locking tongues (48) to produce a snap connection, - wherein the bearing pin (30) has a notch (56) of the locking groove (52), and - wherein the notch (56) is designed such that when the cable pulley (28) with the bearing opening (34) is placed on the bearing pin (30) and is rotated, and a not completely engaged or clipped locking tongue (48) is moved over the notch (56), the locking tongue (48) engages or clips into the locking groove (52) due to its mechanical pretension.

2. Deflection device (20) according to claim 1, characterized in that the cable pulley (28) has an inner ring wall (36) surrounding the bearing opening (34) and an outer ring wall (38) having the running groove (32), wherein the locking tongues (48) are formed integrally on the inner ring wall (36).

3. Deflection device (20) according to claim 2, characterized in that the locking tongues (48) of the ring inner wall (36) project axially and are directed radially inwards.

4. Deflection device (20) according to one of claims 1 to 3, characterized in that the notch (56) extends from the locking groove (52) axially along the bearing pin (30).

5. Deflection device (20) according to one of claims 1 to 4, characterized in that the notch (56) has an approximately trapezoidal shape along a tangential direction (T) of the bearing pin (30).

6. Deflection device (20) according to one of claims 1 to 5, characterized in that the cable pulley (28) is an injection-molded part.

7. Deflection device (20) according to one of claims 1 to 6, characterized in that the bearing pin (30) is a molded part of the carrier (26).

8. Cable window lifter (2) for a motor vehicle, comprising a support (26) and a traction cable (14) for transmitting an adjusting force, as well as at least one deflection device (20) arranged on the support (26) according to one of claims 1 to 7.

9. Door module (24) for a vehicle door, comprising a cable window lifter (2) according to claim 8.

Images