Deflection device for a motor vehicle window lift

Abstract

The invention relates to a deflection device (11) for a traction cord (6) of a window lift (1) of a motor vehicle, comprising a cord pulley (8), which has a circumferential track (12) for the traction cord (6) and a central bearing opening (13), and comprising a carrier (2) for the cord pulley (8) and a carrier-side journal (9) for rotatably mounting the cord pulley (8), wherein the cord pulley (8) is ring-shaped and has an internal ring wall (14) surrounding the central bearing opening (13) and an external ring wall (15) having the track (12), and wherein the ring-shaped cord pulley (8) is joined to the journal (9) with a snap-fit assembly.

Description

[0001] The invention relates to a deflection device for a pull cable of a window lifter of a motor vehicle, comprising a cable pulley for deflecting the pull cable and a bearing element for rotatably supporting the cable pulley. It further relates to a window lifter for adjusting a window pane of a motor vehicle and a door module for a vehicle door.

[0002] A window lifter of a motor vehicle, also referred to below as a window lifter assembly, comprises a support component (support) and a guide device arranged thereon for guiding a flexible traction means (traction cable), via which an adjustment torque (adjustment force) generated by an (electrical motor) window lifter drive can be transmitted to a window pane to be adjusted. The guide device is typically formed by deflection means and one or more guide rails, by means of which the traction cable is guided in an adjustment section along the adjustment direction of the window pane to be adjusted. The support component on which the guide device is received can be a module carrier, which is installed in a motor vehicle door together with functional components pre-assembled thereon, such as in particular the components of the window lifter.

[0003] At least one driver or rail slider is attached to the pull cable guided by the guide device, via which the window pane to be adjusted is connected to the pull cable. The driver is located on an adjustment section of the pull cable, which extends along a guide rail running in the adjustment direction, and engages longitudinally in the guide rail. As a result, the driver and the adjustment section of the pull cable, as well as the window pane to be adjusted, are guided along the guide rails. As a result, when force is applied to the pull cable by means of the associated adjustment drive, the window pane is adjusted via the driver along a longitudinal adjustment path predetermined by the guidance of the driver and the pull cable by means of the guide device.

[0004] When moving along the adjustment path, the drivers of a so-called double-strand window lifter and the window pane to be adjusted move along an adjustment surface, which is thus predetermined or defined by the adjustment path. In order to guide the pull cable, which is coupled to and extends from the adjustment drive, precisely along the guide rails, deflection devices are provided. These can be deflection devices in the form of semicircular deflection pieces or contours, or cable pulleys that are rotatably mounted in the area of ​​or at the ends of the guide rails.

[0005] Such a rotationally fixed deflection piece arranged on the support component of a window lifter assembly is known from WO 2018 / 224 415 A1. The deflection piece has a guide channel for deflecting the traction cable in a guide plane which, in the typical vehicle coordinate system, lies in the xz plane or is parallel to it. The deflection piece can, in principle, be designed as a separate component and fixed to the support component. Polyarylether plastic is proposed as the material here, but this is very cost-intensive and, moreover, is not wear-resistant to the desired extent due to the abrasion of the deflection piece caused by the traction cable, which is typically made of commercially available steel, even with this material as a result of a large number of adjustment cycles. In addition, pressing the traction cable into the plastic support component leads to acoustic disadvantages, particularly in the form of undesirable noise emissions.

[0006] Cable pulleys, also known as deflection pulleys, typically have a central bore through which the cable pulley is connected to the guide rail or another supporting part of a cable window lifter by means of a rivet bolt (DE 198 55 011 C1) or a plug or stepped bolt (DE 20 2008 010 920 U1). Screw and clip elements with a widened head are known from DE 20 2005 017 112 U1 as securing and bearing elements for the cable pulley. Such deflection devices are cost-intensive simply because the securing and bearing elements are provided as additional components. In addition, typical strength requirements, such as a heat creep test (gathered heat storage test), are often not met, especially if the cable pulley is to be attached to a plastic support.

[0007] In a deflection device known from GB 2 388 158 A, a cable pulley having a circumferential groove and a central bearing opening is joined to a support-side bearing journal in a snap connection, the cable pulley having teeth on the inner edge and the bearing journal having a corresponding groove into which the teeth engage.

[0008] In a deflection device known from DE 101 56 056 A1, a support-side bearing pin, which has locking elements for a snap connection with a cable pulley, is designed as a hollow cylinder in order to accommodate a locking pin to prevent the snap connection from becoming loose.

[0009] From DE 20 2006 015 585 U1 a cable deflection pulley for a window lifting system is known, which comprises a base body made of a first material for rotatable sliding contact mounting on an axis and a main body made of a second material, connected to the base body and designed to guide and deflect the cable.

[0010] The invention is based on the object of providing a particularly suitable deflection device for a pull cable of a window lifter or a window lifter assembly of a motor vehicle. In particular, the deflection device should have as few components as possible and enable simple, preferably automated, assembly of the cable pulley. Furthermore, a suitable window lifter or a window lifter assembly with such a deflection device and a suitable door module with such a window lifter (window lifter assembly) should be provided.

[0011] This object is achieved according to the invention with regard to the deflection device by the features of claim 1, with regard to the window lifter or window lifter assembly by the features of claim 9, and with regard to the door module by the features of claim 10. Advantageous embodiments, further developments, and variants are the subject of the dependent claims.

[0012] The deflection device for deflecting a pulley of a window lifter of a motor vehicle comprises a cable pulley (deflection pulley) and a support (support component), as well as a support-side bearing pin for rotatably supporting the cable pulley. The support is preferably made of plastic, thus suitably being a plastic part. The support can also be a guide rail, for example made of steel or aluminum, and the bearing pin can be a molded or extruded part of the guide rail or a bearing pin associated with the guide rail, for example, joined to a door module or the like.

[0013] The rope pulley (deflection pulley) has a groove for the traction rope and a central bearing opening. The rope pulley, which is ring-shaped and thus annular, is designed with an inner ring wall surrounding the central bearing opening and an outer ring wall with the circumferential groove (rope or guide groove) for the traction rope.

[0014] The annular pulley is joined to the bearing journal in a snap-fit ​​connection. In other words, the pulley is directly clipped or snapped onto the bearing journal. Suitably, an annular space, particularly a bead-like one, is formed between the inner and outer walls of the pulley.

[0015] 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. 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. The support-side bearing journal forms the physical bearing axis (rotation axis) of or for the cable pulley.

[0016] The pulley is expediently made of plastic, in particular a polymer, for example polyetheretherketone (PEEK), polyamide (PA), or polyoxymethylene (POM). A metal sleeve, particularly an overmolded one, can be inserted, particularly pressed, into the central bearing opening of the pulley. This allows for a particularly large inner diameter of the central bearing opening (bearing diameter) while simultaneously minimizing the material used for the annular pulley.

[0017] The ratio between the inner diameter of the inner ring wall and the outer diameter of the outer ring wall of the pulley is less than one (1), in particular less than 0.9, preferably less than 0.8, and greater than 0.5, preferably greater than 0.7. Particularly preferably, the inner diameter of the central bearing opening is at least two-thirds (2 / 3) of the outer diameter of the pulley.

[0018] The pulley has a number of circumferentially arranged, preferably evenly distributed, locking tabs. The locking tabs on the pulley side are suitably molded onto the inner ring wall of the pulley. Particularly preferably, the locking tabs project axially beyond the inner ring wall and are directed radially inward, i.e., toward the rotation or bearing axis of the pulley. Inner wall sections are formed between the locking tabs, which, when the snap connection of the pulley to the bearing journal is established, forming a sliding bearing between the pulley and the bearing journal, rest against the journal.

[0019] The locking tabs on the pulley side snap or clip into a corresponding locking groove in the bearing journal, creating the snap connection. In the snap connection, when the locking tabs of the pulley are snapped or clipped into the preferably circumferential locking groove of the bearing journal, the locking tabs on the pulley side assume their original, pre-joining, normal position. In other words, the locking tabs on the pulley side are in a normal position before the joining process, deflect radially during the joining process to create the snap connection, and 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.

[0020] Alternatively, radially outwardly directed locking elements are formed on the inner ring wall of the pulley, which engage in a preferably circumferential annular groove of the bearing pin to create the snap connection.

[0021] The cable pulley advantageously has a mounting groove coaxial with the running groove, for example, a continuous, circumferential one, for threading the traction cable into the running groove. The mounting groove is expediently formed from a number of partial contact grooves. These are preferably arranged alternately with the locking tabs, i.e., adjacent to them, on the circumference of the annular cable pulley.

[0022] The mounting groove, in particular each of the contact grooves, is suitably formed on the outer wall of the ring or between this and the inner wall of the ring on the rope pulley. The contact grooves form local receiving points for the traction cable when this is initially inserted into the mounting groove during assembly. The diameter of the mounting groove is suitably smaller than that of the running groove, which simplifies threading the cable onto the rope pulley. A local threading point, which is provided on the circumference of the rope pulley (axially) between the mounting groove and the running groove and at which the mounting groove opens into the running groove, enables the traction cable to be automatically threaded into the running groove when the rope pulley is first driven in the direction of rotation. During this threading of the traction cable, it is automatically tightened due to the increase in diameter along the local threading point, thereby compensating for any slack in the traction cable.

[0023] The deflection device is particularly suitable for a window lifter or for a window lifter assembly for adjusting a window pane of a motor vehicle, but also for a door module of a vehicle door, in which a vehicle window to be adjusted by means of the window lifter can be moved between an open position and a closed position. The window lifter for adjusting the window pane has a carrier or a carrier component and a (flexible) pull cable for transmitting an adjusting force for adjusting the window pane. The door module for a vehicle door has such a window lifter and is suitably installed between an outer door skin (door panel) and an inner door cover (door inner panel).

[0024] The advantages achieved by the invention are, in particular, that the deflection device consists practically of only two parts and therefore has few components. Furthermore, the cable 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 groove of the cable pulley, and virtually no noise is generated between the traction cable and the cable pulley. Furthermore, the cable pulley bearing can be designed with grease pockets to be particularly flexible and optimized for smooth sliding. For this purpose, an annular groove for accommodating grease is suitably incorporated into the bearing journal, in particular coaxial with the locking groove.

[0025] Exemplary embodiments of the invention are explained in more detail below with reference to a drawing. In the drawings: Fig. 1 in a plan view a cable window lifter as a window lifter assembly with a carrier (carrier component) and with drivers guided along two guide rails for a motor vehicle window pane as well as with a traction cable coupled to the drivers and with an adjustment drive, which is guided in sections on carrier-fixed deflection elements in the form of rotatably mounted cable pulleys and carrier-fixed deflection pieces, Fig. 2 a section II from Fig. 1 on a larger scale with a perspective view of a ring-shaped cable pulley axially above a carrier-side bearing journal in an assembly step before the snap connection of the ring-shaped cable pulley with or on the carrier-side bearing journal, produced by locking or clipping, Fig. 3 the section according to Fig. 2 on a larger scale with the pulley joined to the bearing pin in the snap connection, Fig. 4 the section according to Fig. 2in a sectional view along the line IV-IV in Fig. 3 with a view of a grease reservoir in the area of ​​the sliding surface between the rope pulley and the bearing journal, Fig. 5 in perspective view the annular rope pulley with a running groove in an outer ring wall and with axially raised and radially inwardly directed locking tongues on an inner ring wall, Fig. 6 the annular rope pulley in a sectional view along the line VI-VI in Fig. 5 , Fig. 7 in a schematic partial representation of a variant of the snap connection between the annular pulley and a crown- or crenellated support-side bearing journal, Fig. 8 in a representation according to Fig. 7a further variant of the snap connection according to the invention between the annular cable pulley with radially outwardly directed locking tongues and corresponding locking groove in the support-side bearing pin, Fig. 9 in perspective view a variant of the annular cable pulley with a mounting groove coaxial to the running groove for automatic threading or threading of the traction cable, Fig. 10 in perspective view a variant of the support as a guide rail with a bearing pin as a bearing pin and in the snap connection with the annular cable pulley with the traction cable guided in it, and Fig. 11 a sectional view of the variant according to Fig. 10 with the ring-shaped rope pulley in the snap connection with a bolt or bearing head as a bearing pin of the rail-side bearing bolt without a traction rope.

[0026] Corresponding parts are provided with the same reference numerals in all figures.

[0027] Fig. 1shows a plan view of a window lifter assembly 1 with a support component, referred to below as the support 2, which is advantageously made of a plastic and is thus a plastic component. Mounted on the support 2 are two (essentially) parallel guide rails 3, on which carriers (rail sliders) 4 are guided for sliding movement. A window pane 5, indicated by dashed lines, is held on the carriers 4. The carriers 4 are connected to a pull cable 6 as a flexible traction means, which is deflected several times and coupled to an electric motor-driven adjustment drive 7.

[0028] As a deflection device 11, a cable pulley (deflection pulley) 8 is provided—in the exemplary embodiment at the upper rail ends of the guide rails 3—which is rotatably mounted on support-side bearing pins 9. The bearing pins 9 are preferably formed from the material of the support 2. In other words, the respective bearing pin 9 is formed (molded) from the support material itself as a cylindrical or hollow-cylindrical shaped body.

[0029] In the exemplary embodiment, semicircular, non-rotatable deflection elements 10 are provided in the region of the lower rail ends of the guide rails 3, which are preferably also formed from the material of the support 2. Via these non-rotatable deflection elements 10 and the rotatably mounted cable pulleys 8, the traction cable 6 is deflected via traction cable sections running along the guide rails 3 into traction cable sections running diagonally and crossing between the guide rails 3. The adjustment drive 6 is arranged in one of these diagonal traction cable sections. Instead of the non-rotatable deflection elements 10, cable pulleys also rotatably mounted on the support side can be provided in the region of the lower rail ends of the guide rails 3.

[0030] The Figures 2 to 4 show the deflection device 11 in a pre-assembled state in which the cable pulley 8 is not yet joined to the bearing pin 9 ( Fig. 2), and in the joined state, in which a snap connection is established between the pulley 8 and the bearing journal 9 ( Figures 3 and 4 ). In the snap connection, the cable pulley 8 is directly clipped or snapped onto the bearing pin 9. The deflection device 11 consists essentially only of the cable pulley 8 for deflecting the pull cable 6 of the window lifter 1 and the support-side bearing pin 9, i.e. formed from the support 2, as a pivot bearing for the cable pulley 8.

[0031] The cable pulley 8 has a running groove 12 for the traction cable 6 and a central bearing opening 13. The cable pulley 8 has the shape of a ring between an inner ring wall 14 surrounding the central bearing opening 13 and an outer ring wall 15. The circumferential running groove (cable or guide groove) 12 for the traction cable 6 is formed into this. An annular space 16 is formed between the inner ring wall 14 and the outer ring wall 15 of the cable pulley 8. This is designed as a bead (bead-like) in the exemplary embodiment. In other words, the cable pulley 8 has a waisted cross-sectional shape in this embodiment, as can be seen from the Figures 4 and 6 is comparatively clearly visible. However, the annular space 16 can also be omitted, i.e., it can be filled with plastic material, in particular that of the cable pulley.

[0032] The support-side bearing journal 9 forms the physical bearing axis (rotation axis) 17 of the cable pulley 8 and is formed from the support material as a hollow cylindrical molded part of the support 2. The bearing journal 9 has a number of radial ribs 9c connecting an inner wall 9a and a coaxial outer wall 9b ( Fig. 2 ).

[0033] As can be seen from the Figures 2 to 6As can be seen, the cable pulley 8 has a number of locking tongues 18, six (6) in the exemplary embodiment, which are evenly distributed around the circumference. These locking tongues 18 on the cable pulley side are formed onto the inner ring wall 14 of the cable pulley 8. Relative to the bearing axis 17, the locking tongues 18 project axially beyond the inner ring wall 14 and here also the outer ring wall 15 and are directed radially inward. Wall sections (inner wall or cable pulley sections) 19 are formed between the locking tongues 18. In the joined state, after the snap connection of the cable pulley 8 has been established, these rest against the bearing journal 9 and, as a corresponding component of the inner ring wall 13, form a particularly low-friction sliding bearing between the cable pulley 8 and the bearing journal 9.

[0034] The locking tongues 18 on the pulley side engage or clip into a corresponding (circumferential) locking groove 20 of the bearing pin 9 and establish a snap connection S ( Fig.4). During the production of the snap connection S, the spring-elastic locking tongues 18 deflect radially. If the locking tongues 18 on the pulley side of the pulley 8 are clipped into the locking groove 20 of the bearing pin 9, they take up the Figures 2 and 5 This prevents unwanted wear of the locking tongues 18 or the bearing pin 9 and thus running or disturbing noises.

[0035] The cable pulley 8 is preferably made of plastic, for example a polymer. Polyetheretherketone (PEEK), polyoxymethylene (POM), and polyamide (PA) are particularly suitable.

[0036] As can be seen from the sectional view of the pulley 8 according to Fig. 6As can be seen, the inner diameter di of the cable pulley 8 in the area of ​​the central bearing opening 13 is at least two-thirds (2 / 3) of the outer diameter da of the cable pulley 8. The ratio between the inner diameter di and the outer diameter di of the cable pulley 8 is between 0.7 and 0.75 in the exemplary embodiment. The axial pulley thickness D of the cable pulley 8, including the axially projecting locking tongues 18, is one-fifth (1 / 5) to one-quarter (1 / 4) of the outer diameter di and approximately one-third (1 / 3) of the inner diameter di of the cable pulley 8.

[0037] Fig. 7shows a simplified and partial sectional view of a variant of the deflection device 11 not according to the invention. In this exemplary embodiment, the bearing pin 9 has a number of crown-like locking elements 18' that are evenly distributed around the circumference. During the production of the snap connection S, the locking elements 18' on the bearing pin side deviate radially inwards with respect to the bearing axis 17 and the central bearing opening 13 of the cable pulley 8, as shown in dashed lines. In the snap connection S, the locking elements 18' on the bearing pin side engage over the cable pulley 8. The locking elements 18' on the bearing pin side engage behind a suitable surface of the cable pulley 8 in order to fix it axially.

[0038] At the Fig. 8In a variant of the deflection device 11, again shown in a simplified form and in detail in a sectional view, locking elements 18" directed radially outwards are formed on the cable pulley 8 in the area of ​​the central bearing opening 13 and thus on the inner ring wall 14 of the cable pulley 8. These engage in the snap connection in a preferably circumferential ring or locking groove 20' of the bearing pin 9.

[0039] The Fig. 9The cable pulley 8 shown schematically has a mounting groove 21 coaxial with the running groove 12 for threading the traction cable 6 into the running groove 12. The mounting groove 21 is segmented in the exemplary embodiment and for this purpose is formed from a number of partial contact grooves 22, five in the exemplary embodiment. The contact grooves 22 and thus the mounting groove 21 are formed on the cable pulley 8 between the outer ring wall 14 and the inner ring wall 15 - i.e. in the area of ​​the annular space 16. The contact grooves 22 are arranged between the locking tongues 18 and thus adjacent to them. In other words, the contact grooves 22 and the locking tongues 18 are arranged alternately on the circumference of the cable pulley 8. The contact grooves 22 form local receiving points for the traction cable 6 when the latter is first inserted into the mounting groove 21 during assembly.

[0040] The diameter of the mounting groove 21 is smaller than that of the running groove 12 of the cable pulley 8. This simplifies the threading of the cable 6 onto the cable pulley 8. A local threading point 23 provided on the circumference of the cable pulley 8 axially between the mounting groove 21 and the running groove 12 opens from the mounting groove 21 into the running groove 12. This enables automatic threading of the traction cable 6 into the running groove 12.

[0041] For this purpose, the cable pulley 8 is driven in the direction of rotation. During this threading of the traction cable 6, the cable is tightened (tensioned) due to the increase in diameter along the local threading point 23, and slack is removed from the traction cable 6.

[0042] With renewed reference to the Fig. 4An annular groove 24 is formed in the bearing journal 9 coaxially with the locking groove 20 to accommodate grease (grease reservoir), which penetrates between the running or bearing surface 25a of the cable pulley 8 and the running or bearing surface 25 of the bearing journal 9 during the rotational movement of the cable pulley 8. As a result, the plain bearing formed between the cable pulley 8 and the bearing journal 9 is particularly low-friction.

[0043] The Figures 10 and 11show a variant of the support and the bearing pin in a perspective or sectional view. The guide rail 3 serves as the support here, and the bearing pin is formed (provided) by a bolt bearing head 26a of a bearing pin 26 with a bolt shaft 26b. The snap connection to the annular cable pulley 8 is made at the bearing head 26a of the bolt-like bearing pin 9 here, in whose groove 12 the traction cable 6 is guided. The bearing pin also serves suitably as a joining element for fastening the guide rail 3 to a module, for example a door module, in particular if the support 2 and the guide rail 3 are separate components. The material of the guide rail 3 is then expediently steel or aluminum.

[0044] In summary, the invention relates to a deflection device 11 for a traction cable 6 of a window lifter 1 of a motor vehicle, comprising a cable pulley 8 which has a circumferential groove 12 for the traction cable 6 and a central bearing opening 13, as well as a carrier 2 for the cable pulley 8 and a carrier-side bearing pin 9 for the rotatable mounting of the cable pulley 8, wherein the annular cable pulley 8 is joined to the bearing pin 9 in a snap connection by means of integrated locking or clip elements.

[0045] The claimed invention is not limited to the embodiments described above. Rather, other variants of the invention may be derived from the invention by those skilled in the art within the scope of the disclosed claims without departing from the subject matter of the claimed invention.

[0046] For example, a metal sleeve, for example an overmolded metal sleeve, can be inserted into the central bearing opening 13 of the cable pulley 8. This allows the annular cable pulley 8 to be designed with a particularly large inner diameter d 1 of the central bearing opening 13. Such a large bearing diameter allows for minimizing the material of the annular cable pulley 8, in particular by designing it with particularly thin walls.

[0047] In addition, the solution described can be used not only in the specific application case described, but also in a similar design in other automotive applications, such as door and tailgate systems, window lifters, vehicle locks, adjustable seat and interior systems as well as electrical drives, controls, sensors and their arrangement in the vehicle. List of reference symbols

[0048] 1 Window lifter assembly 2 Support / component 3 Guide rail 4 Carrier / rail slider 5 Window pane 6 Pulley 7 Adjustment drive 8 Rope / deflection pulley 9 Bearing journal 9a Inner wall 9b Outer wall 9c Radial rib 10 Deflection element 11 Deflection device 12 Running groove 13 Bearing opening 14 Ring inner wall 15 Ring outer wall 16 Annular space 17 Bearing / rotation axis 18 Locking tongue 19 Wall sections 20 Locking groove 21 Mounting groove 22 Contact groove 23 Threading point 24 Ring groove 25a,b Running / bearing surface 26 Bearing bolt 26a Bearing / bolt head 26b Bolt shaft da,i Outer or inner diameter D Roller thickness

Claims

1. Deflection device (11) for a traction cable (6) of a window lift (1) of a motor vehicle, comprising a cable roller (8) which has a circumferential running channel (12) for the traction cable (6) and a central bearing opening (13), and comprising a carrier (2, 3) for the cable roller (8) and a carrier-side bearing journal (9, 26a) for rotatable mounting of the cable roller (8), - wherein the cable roller (8) is annular and has an inner ring wall (14) surrounding the central bearing opening (13) and an outer ring wall (15) having the running channel (12), - wherein the ratio between the inner diameter (di) of the inner ring wall (14) and the outer diameter (da) of the outer ring wall (14) of the cable roller (8) is less than 1 and greater than 0.5, and - wherein the cable roller (8) has a number of latching tongues (18, 18") distributed over the circumferential side, which are moulded onto the inner ring wall (14) of the cable roller (8) and latch or clip into a corresponding latching groove (20, 20') of the bearing journal (9) so as to create a snap connection of the annular cable roller (8) with the bearing journal (9).

2. Deflection device (11) according to Claim 1, characterized in that the ratio between the inner diameter (di) of the inner ring wall (14) and the outer diameter (da) of the outer ring wall (15) of the cable roller (8) is less than 0.9, preferably less than 0.8, and greater than 0.7.

3. Deflection device (11) according to Claim 1 or 2, characterized in that the latching tongues (18, 18") on the cable roller side protrude axially beyond the inner ring wall (14) and / or the outer ring wall (15) and are directed radially inwardly.

4. Deflection device (11) according to one of Claims 1 to 3, characterized in that the cable roller (8) has a mounting channel (21) coaxial to the running channel (12) for introducing the traction cable (6) into the running channel (12).

5. Deflection device (11) according to Claim 4, characterized in that the mounting channel (21) is formed from a plurality of contact grooves (22).

6. Deflection device (11) according to Claim 4 or 5, characterized in that the mounting channel (21) or the partial contact grooves (22) is or are moulded onto the outer ring wall (15) or between this and the inner ring wall (14) on the cable roller (8).

7. Deflection device (11) according to one of Claims 4 to 6, characterized in that in the circumferential direction of the cable roller (8), a local insertion point (23) is provided via which the mounting channel (21) opens into the running channel (12).

8. Deflection device (11) according to one of Claims 1 to 7, characterized - in that the bearing journal (9) is a cylindrical or hollow-cylindrical moulding of the carrier (2), and / or - in that the carrier (2) is a guide rail (3), in particular made of steel or aluminium, and the bearing journal (9) is a bearing head (26a) provided for snap connection to the cable roller (8) and part of a bearing bolt (26) which is joined or to be joined to the guide rail (3), and / or - in that the carrier (2) and / or the cable roller (8) consists of plastic, and / or - in that a metal sleeve, in particular over-moulded, is arranged in, in particular pressed into the central bearing opening (13) of the cable roller (8).

9. Window lift (1) for adjusting a window glass (5) of a motor vehicle, having a carrier (2) which in particular is provided as a component, and a traction cable (6) for transmitting an adjustment force for adjusting the window glass (5), and at least one deflection device (11) according to any of Claims 1 to 8 arranged on the carrier (2).

10. Door module for a vehicle door, with a window lift (1) according to Claim 8.

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