EP2126262B1 - Pièce de transmission pour lève-vitre à câble et unité d'entraînement pour lève-vitre à câble - Google Patents

Pièce de transmission pour lève-vitre à câble et unité d'entraînement pour lève-vitre à câble Download PDF

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Publication number
EP2126262B1
EP2126262B1 EP08715827A EP08715827A EP2126262B1 EP 2126262 B1 EP2126262 B1 EP 2126262B1 EP 08715827 A EP08715827 A EP 08715827A EP 08715827 A EP08715827 A EP 08715827A EP 2126262 B1 EP2126262 B1 EP 2126262B1
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EP
European Patent Office
Prior art keywords
cable
cable drum
mechanism part
gear
gear mechanism
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP08715827A
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German (de)
English (en)
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EP2126262A1 (fr
Inventor
Uwe Klippert
Horst Weber
Armin Stahn
Stephan Stetter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brose Fahrzeugteile SE and Co KG
Original Assignee
Brose Fahrzeugteile SE and Co KG
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Publication of EP2126262A1 publication Critical patent/EP2126262A1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
    • E05F11/38—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement
    • E05F11/48—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes
    • E05F11/481—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes for vehicle windows
    • E05F11/483—Man-operated mechanisms for operating wings, including those which also operate the fastening for sliding windows, e.g. vehicle windows, to be opened or closed by vertical movement operated by cords or chains or other flexible elongated pulling elements, e.g. tapes for vehicle windows by cables
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
    • E05F15/689—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings specially adapted for vehicle windows
    • E05F15/697—Motor units therefor, e.g. geared motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/47—Springs
    • E05Y2201/49—Wrap springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/644—Flexible elongated pulling elements
    • E05Y2201/654—Cables
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/658—Members cooperating with flexible elongated pulling elements
    • E05Y2201/664—Drums
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/71—Toothed gearing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2400/00—Electronic control; Electrical power; Power supply; Power or signal transmission; User interfaces
    • E05Y2400/10—Electronic control
    • E05Y2400/32—Position control, detection or monitoring
    • E05Y2400/334—Position control, detection or monitoring by using pulse generators
    • E05Y2400/336—Position control, detection or monitoring by using pulse generators of the angular type
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/50—Mounting methods; Positioning
    • E05Y2600/52—Toolless
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/50—Mounting methods; Positioning
    • E05Y2600/52—Toolless
    • E05Y2600/522—Axial stacking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/10—Additional functions
    • E05Y2800/12—Sealing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/55—Windows
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19851—Gear and rotary bodies
    • Y10T74/19856—Laterally-spaced wheels

Definitions

  • the invention relates to a transmission part for a cable window lifter according to the preamble of claim 1 and to a drive unit for a cable window lifter.
  • a transmission part is eg from the EP 1 514 989 A1 known.
  • a cable window lifter is used to raise and lower a window of a motor vehicle.
  • a cable window lifter is for example from the EP 1 617 028 A1 known.
  • the rope window lifter described therein has two guide rails, along which a respective driver is movably mounted. At the two drivers, the window pane is attached.
  • a drivable by means of a drive unit cable is hinged to the drivers.
  • the cable of the cable is partially wound on a drivable by the drive unit and provided with a cable drum rope drum.
  • gear and cable drum are arranged on a common axis.
  • the gear wheel and the cable drum are coupled to one another by positive engagement of an outer toothing arranged on an inner circumferential projection with an inner toothing arranged on an outer circumferential projection.
  • At least one nipple chamber is introduced into a rope end attachment in the cable drum. For this purpose, the end of the rope on a nipple, which is inserted during assembly in the nipple chamber.
  • the cable window lifter can be pre-assembled so far with drive unit, guide rail, pulley and driver. During final assembly, only the rope must be attached to the driver and the cable drum and the cable drum can be coupled to the gear wheel. In this way, a simple, trouble-free and quick replacement of a defective drive unit is also possible.
  • gear wheel and cable drum also makes it possible to use for the gear wheel and the cable drum different and optimized for the application materials.
  • the gear can be made in particular of a tough, wear and lubricant resistant plastic, which has a long service life under mechanical stress.
  • the cable drum is in particular made of a plastic with good static friction properties, so that the leadership of the rope is carried out with a high coefficient of friction and twisting or even jumping out of the rope from its rope is practically impossible.
  • the invention has for its object to provide an alternative transmission part for a cable window lifter with a gear and a gear driven by the gear drum. Furthermore, the invention has for its object to provide an alternative drive unit for a cable window lifter.
  • the first object is achieved by the characterizing part of claim 1.
  • the invention is based on the consideration that the necessary nipple chamber influences the size of both components of the transmission part, in particular the cable drum.
  • the nipple chamber was arranged in previously known transmission parts of the aforementioned in the radial direction outside of the tooth coupling. In order to obtain sufficient space for the introduction of the nipple chamber, the scope of the tooth coupling is reduced accordingly for a given circumference of the cable drum.
  • the invention starts from the knowledge that with a small diameter of the toothing a lower drive torque can be transmitted than with a larger diameter.
  • the invention recognizes that an enlargement of the toothing diameter can be achieved by arranging the nipple chamber in the radial direction outside the toothed coupling, in other words projecting onto a cross-sectional plane perpendicular to the axis, within the outer circumferential projection. Since the toothing carrying circumferential projections may not necessarily be configured circumferentially but also at least partially openwork, thereby the accessibility to the nipple chamber is not necessarily deteriorated.
  • the invention also opens up the possibility of making the overall volume of the gear unit also more compact.
  • the transmitted from the gear on the cable drum force is distributed over a larger circumference and a larger number of teeth. This reduces the mechanical load per tooth. The risk of failure of the coupling site due to breakage or deformation of one or more teeth is reduced.
  • the lower load per tooth also allows the choice of simpler and thus cheaper materials.
  • the outer peripheral projection is associated with the gear wheel and the inner circumferential projection of the cable drum or the inner peripheral projection with the gear wheel and the outer peripheral projection of the cable drum.
  • the gearing itself can have a few to many teeth each.
  • the circumferential projections can each be designed to be circumferential or single or multiple perforated.
  • the circumferential projections are also not necessarily designed annular. Likewise, other wall forms for supporting the teeth are possible.
  • the outer peripheral projection additionally engages the corresponding component in an annular channel.
  • the outer wall of the annular channel stabilizes the coupling point mechanically in addition. Thus, the risk of tilting the cable drum during operation of the cable window lifter is avoided.
  • the annular channel is an insertion or assembly aid in coupling the gear wheel with the cable drum.
  • the teeth of the external toothing and / or of the internal toothing each have a substantially cuboidal structure.
  • Such a geometry is made possible due to the increased circumference and allows a simplified coupling of the cable drum to the gear wheel, as compared to a tapered tooth geometry, a radial offset of the components is tolerated in the joining within certain limits.
  • the risk of breakage of a cuboid tooth due to the tangential introduction of force is absorbed by its thickness. Also by the consequent reduction of the number of teeth, the assembly of cable drum and gear is simplified. Also, the production is simplified and therefore less expensive.
  • a cuboid tooth geometry is easier to introduce into a mold than a tooth geometry with pointed teeth. Furthermore, more material is arranged at the end surfaces of the cuboid teeth than pointed teeth. This ensures that an injection mold is better filled with the injected plastic, as is the case with tapered teeth.
  • the gear wheel or rope drum can be mass-produced in a mass production at a lower reject rate.
  • the teeth of the external toothing and / or the internal toothing in the joining direction of the components are each chamfered, ie provided with a chamfer.
  • the chamfer of the teeth may be provided on the external toothing and / or on the internal toothing.
  • the chamfering of the teeth thus serves as an insertion or assembly aid.
  • the outer peripheral projection of the internal toothing on the cable drum and the inner peripheral projection with the external toothing on the gear wheel is arranged.
  • the space, which is greater in relation to the internal toothing projection, within the external toothing projection is available for receiving the nipple chamber.
  • gear and cable drum are executable in a particularly compact geometry.
  • the drum circumference of the cable drum is smaller than the outer peripheral projection.
  • the drum part of the cable drum is offset radially inwards relative to the outer peripheral projection.
  • the transition between the outer peripheral projection and the cable drum is thus formed step-like.
  • This step-like training serves, for example, as a guide for the wound on the cable drum rope of the cable. The risk of jumping out of the rope from the rope groove is thus low. Furthermore, this makes it possible to realize a particularly good lever arm for the cable, so that the cable window lifter can be operated with a drive motor of low power.
  • the nipple chamber is aligned tangentially to the axis introduced into the cable drum.
  • the nipple chamber is oriented such that the nipple of the rope with its longitudinal direction in the inserted state is tangent to the axis.
  • a particularly simple insertion of the rope end with the nipple in the nipple chamber in the pulling direction can be achieved.
  • the nipple is pulled by the tensile force of the rope against a stop surface and thus securely held.
  • the stop surface is aligned so that the tensile force acts perpendicular to this. Due to the tangential orientation of the nipple chamber, kinking of the cable or bending of the nipple relative to the cable direction is reliably avoided.
  • a cable groove connecting the drum circumference to the nipple chamber is introduced into the cable drum.
  • a defined lead out of the rope from the nipple chamber is achieved.
  • a tangential lead out of the rope from the nipple chamber with a continuous curvature in the circumferential direction of the drum is a kinking of the rope at its end safe avoided.
  • the rope is rather gently led out of the nipple chamber and nestles gently on its emergence from the rope groove to the cable drum.
  • two mutually offset in the axial direction nipple chambers are introduced with opposite orientation in the cable drum, which are both arranged on a cross-sectional plane perpendicular to the axis projected within the outer peripheral projection.
  • the cables associated with the two drivers can both be connected to the cable drum in such a way that an equilibrium of forces results. Due to the opposing orientation of the nipple chambers, it is achieved that, during a rotation of the cable drum, one rope is unwound and the other rope is wound up and vice versa.
  • both nipple chambers are arranged one above the other in the axial direction of the cable drum and formed from a continuous channel. This allows a simple production of the cable drum, since the nipple chambers can be easily impressed in this way the component, in particular during production as a plastic injection molded part.
  • the gear with a drive a variety of configurations are possible.
  • the coupling via a corresponding gear with parallel, intersecting or crossing transmission axes take place, which is a translation of the drive speed.
  • this also allows a choice of the position of the drive motor and thus the position of the drive axle.
  • the transmission can be designed both self-locking and not self-locking.
  • the gear wheel is designed as a worm wheel meshing with a worm shaft.
  • the worm shaft is in this case in particular attached to a shaft of a drive motor, so that the shaft of the drive motor is arranged perpendicular to the axis of the gear.
  • This makes it possible to arrange the drive motor in a plane with the gear. In this way, a space-saving installation of a drive motor and the worm shaft comprehensive drive unit in the side panel of a motor vehicle is possible.
  • a wrap spring is arranged on the axis, the ends of which are in a releasing and with the cable drum in a releasing operative connection with the gear.
  • An installation of a wrap spring is made possible by the enlarged circumference of the toothing.
  • both the gear wheel and the cable drum can be introduced into an approximately cylindrical recess into which the wrap spring is arranged arranged around the axis.
  • the wrap spring is designed for example as a helical spring, the ends of which are bent radially outwards. The ends are in terms of power acted upon both by the gear, as well as by the cable drum.
  • This application is realized, for example, by means of half-shells acting in opposite directions against the ends, which are arranged on the cable drum or on the gear wheel. Also, every other coupling element is conceivable.
  • the arrangement is designed so that leads by a rotation of the gear in clockwise or counterclockwise to the solution of the wrap spring and a rotation of the cable drum to a blocking of the wrap. Accordingly, in the case of a helical spring, the gear wheel acts against the cable drum and in the winding direction. The drive-side torque is thus introduced without obstruction in the cable drum. However, if a torque is introduced via the cable drum, in particular due to the weight of the window, the wrap spring is pulled together about the axis. A force acting on the cable of the cable window lifter is not transmitted to the drive side.
  • wrap spring brake By means of the wrap spring, a so-called wrap spring brake is realized, the use of which is particularly suitable when a non-self-locking gear is designed to drive the gear.
  • the window is held securely in any position, even if the drive rotor is not energized. In this way, a saving of energy is possible.
  • the wrap spring brake can of course also be used in a self-locking gear, for example, as an additional mechanical protection.
  • the axis is metallized in the region of the wrap spring or made of metal. In this way, a favorable friction pairing between the axle and the wrap spring can be provided.
  • the second object is achieved by a drive unit for a cable window lifter with a drive motor, with a control unit and with a transmission part.
  • the drive motor, the control unit and the transmission part are mounted here on a common housing.
  • Such a drive unit can be used both for a completely pre-assembled as well as for a locally configurable cable window lifters.
  • the drive unit in this case forms an assembly unit, which is particularly easy to install due to the two-part design of the transmission part with a gear and a cable drum.
  • the cable drum can be coupled by positive engagement in a simple manner to the driven by the drive motor gear.
  • An exchange of the drive unit can be carried out in a simple manner in case of a defect.
  • the housing forms in particular bearing shells for supporting the rotatable parts, in particular of transmission parts or the cable drum.
  • the gear wheel is designed as a worm wheel meshing with a worm shaft
  • the worm shaft expediently sits directly on the shaft of the drive motor.
  • Worm shaft and worm wheel form a worm gear.
  • the result is a compact and flat mounting unit, wherein the drive motor is arranged in the plane of the gear.
  • Such a drive unit is thus mounted in a simple manner in a side panel of a motor vehicle with limited installation depth.
  • a drive unit with a worm gear is usually self-locking. In this way, the window pane is kept in the de-energized state.
  • the worm wheel is supported on the worm shaft from. An energization of the drive motor in the case of holding the window is not necessary.
  • the axis of the gear unit is part of the housing.
  • the axle is molded or formed on the housing.
  • the gear part with the gear and the cable drum is thus simply pushed onto the axle.
  • the housing is made of plastic.
  • the housing can be produced, for example, in a simple manner in an injection molding process.
  • Fig. 1 are shown as parts of a gear unit, a gear 1 and a cable drum 2. Both the gear 1 and the cable drum 2 are made of plastic and in particular produced as plastic injection molded parts.
  • the gear wheel 1 essentially has a cylinder symmetry with an axial direction 3. Inside, an annular inner peripheral projection 4 with an external toothing 5 arranged thereon can be seen.
  • the gear wheel 1 further has centrally a centrally extending in the axial direction 3 over the entire length bore 7 for rotatably receiving an axle.
  • On the outer teeth 5 is followed in the radial direction to the outside of an outer wall 8 limited annular channel 9.
  • the outer wall 8 is provided at its upper end with a flat support surface 10.
  • the gear wheel 1 is further designed to be coupled to a worm shaft as a worm wheel.
  • the gear wheel 1 is provided with a helical toothing running around the outer circumference of the outer wall 8 and extending over part of the height of the outer wall 8 Fig. 1 not shown.
  • the cable drum 2 also essentially shows a cylindrical symmetry.
  • the cable drum 2 is in the axial direction 3 in their gem.
  • Fig.1 bottom third formed a substantially annular outer peripheral projection 15, which is provided with an internal toothing 16.
  • a centric bore 17 is centrally inserted into the cable drum 2.
  • On the outer peripheral projection 15 is followed in the axial direction 3, a drum part 18 with a drum circumference, which is smaller than the circumference of the outer peripheral projection 15.
  • On the lateral surface of the drum part 18 winds in the manner of a helix a cable groove 19 for guiding a wound rope in several turns from.
  • the internal toothing 16 of the outer peripheral projection 15 corresponds in a form-fitting manner to the external toothing 5 of the inner circumferential projection 4 of the gear wheel 1.
  • the external toothing 5 of the inner circumferential projection 4 of the gear wheel 1 has teeth 25 with a substantially cuboidal structure. At its upper end in the axial direction 3, the teeth 25 have a chamfer 26 for simplifying the joining with the cable drum 2.
  • the teeth 27 of the internal teeth 16 have a substantially cuboid structure. At its lower end in the axial direction 3 is every 27 a bevel 28 introduced. Due to the cuboidal geometry of the teeth 25,27 a relatively large thickness is both a secure mechanical coupling and easy joining of the components 1 and 2 into each other possible. This is additionally supported by the bevels 26 and 28.
  • the production of the components 1 and 2 is comparatively simple due to the cuboid shape of the teeth 25 and 27.
  • the cable drum 2 is placed in the joining direction 32 on the gear so that the holes 7,17 are aligned with each other in the axial direction 3.
  • the outer peripheral projection 15 engages with the teeth 27 of the internal teeth 16 in the teeth 25 of the external toothing 5 of the inner wall 4.
  • the outer peripheral projection 15 is inserted into the annular channel 9 of the gear 1.
  • the bevels 26,28 of the teeth 25,27 serve as an insertion aid and facilitate placement.
  • the placement is facilitated by a circumferentially introduced on the outside of the outer wall 15 chamfer 33, which simplifies the insertion into the annular channel 9.
  • Fig. 2 shows the cable drum 2 gem.
  • Fig. 1 seen in a plan view from the side of its outer peripheral projection 15 ago.
  • the cable drum 2 has a nipple chamber 40 in its interior.
  • the nipple chamber is projected in a cross-sectional plane perpendicular to the central bore 17 within the outer circumferential projection 15.
  • the nipple chamber 40 is in the Fig. 2 not shown, provided with a nipple end of a rope inserted.
  • the nipple chamber 40 is introduced tangentially to the central longitudinal axis in the cable drum 2. Via a cable groove 41, the nipple chamber 40 is connected to the circumference of the drum part 18.
  • the inserted rope is guided by means of the opening 20 to the outside and at least partially on the circumferential circumference of the drum circumference cable groove 19 gem.
  • Fig. 1 wound. Since the cable is exposed to a tensile load, the nipple is pulled with its side facing the rope to a radially oriented nipple stop 42 and so securely held in the nipple chamber 40.
  • the rope groove 41 is continuously curved, so that the inserted rope smoothly from the tangential direction inside the cable drum 2 is bent to the circumferential direction of the drum part 18. Thus, a kinking of the rope is certainly prevented.
  • Fig. 3 shows the axial direction 3 the outer peripheral projection 15 opposite end of the cable drum 2.
  • the cable drum 2 a further nipple chamber 43 in the nipple chamber 40 opposite orientation. It can be seen that the nipple chamber 43 is also projected within the outer circumferential projection 15 in a cross-sectional plane perpendicular to the central bore 17.
  • the nipple chamber 43 is in the Fig. 3 not shown, provided with a nipple end of another rope inserted.
  • the nipple chamber 43 is also introduced tangentially to the cylinder symmetry in the cable drum 2.
  • Both nipple chamber 40,43 are arranged one above the other in the axial direction 3 and formed in a continuous channel. In this way, a simple production is possible. Also, material can be saved.
  • Fig. 4 shows for clarity again the gear 1 gem.
  • Fig. 1 in a top view. It can be clearly seen the inner peripheral projection 4 with the external toothing arranged thereon 5. Also, the annular channel 9 is clearly visible.
  • a drive unit 50 for a cable window lifter with a housing 51 made of plastic.
  • the transmission part 1 and the cable drum 2 put together gear part is placed on an integrally formed on the housing 51 axis 52 and received by a cup-shaped gear receptacle 53. It can be seen the drum part 18 of the cable drum 2.
  • the gear 2 is in the
  • Transmission mount 53 added. It can be seen only the support surface 10. Furthermore, the housing 51 receives a drive motor 54 for driving the gear 1 and a partially introduced control unit 55 for driving the drive motor 54.
  • a drive motor 54 for driving the gear 1
  • a partially introduced control unit 55 for driving the drive motor 54.
  • the two nipples of the two cable ends are inserted into the nipple chambers 40,43 and the rope ends partially wound on the cable groove 19 of the drum circumference of the drum portion 18 of the cable drum 2 for mounting the rope on the cable window lifter.
  • the cable drum 2 is placed on the axle 52 and positively connected via the corresponding toothing with the gear wheel 1.
  • the housing 51 of the drive unit 50 can be screwed by means of three mounting holes 56 on the inside of the motor vehicle door.
  • the drive motor 54 is coupled to the gear wheel 1 via a worm gear.
  • the drive motor 54 lies in a plane parallel to the gear 1. It can be seen the orientation of the drive shaft 57 of the drive motor 54, which is mounted in a shaft bearing 58 in the housing 51. On the drive shaft 57, a non-visible worm shaft is mounted, which meshes with the helical teeth of the gear 1.
  • the transmission side is held smoothly by means of a lubricant and sealed with a sealing ring 60 to the outside.
  • the sealing ring 60 is adhesively bonded to the upper edge of the transmission receptacle 53 for this purpose.
  • the configuration of the sealing ring 60 is in particular Fig. 7 to take the gem.
  • Fig. 5 and 6 used sealing ring 60 in a cross section.
  • the upper edge of the gear housing 53 has an adhesive channel 61 with an inner wall 63 and an outer wall 64.
  • the substantially cone-shaped sealing ring 60 is placed with a smaller diameter on the adhesive passage 61.
  • a circumferential groove 62 on the underside of the seal 60 surrounds the inner wall 63 of the adhesive channel 61.
  • the outer wall 64 of the adhesive channel 61 has - as shown Fig. 5 and 6 visible - three in the radial direction outwardly extending pocket-like widenings 65, which from the axis 52 from an angular distance of about 120 ° to each other.
  • these widenings 65 is a simple supply of an adhesive 66 in the adhesive channel 61 possible.
  • the adhesive 66 is distributed uniformly from the widenings 65 in the adhesive channel 61 and bonds the sealing ring 60 to the adhesive channel 61. Sealing of the gear wheel 1 now takes place by means of the two sealing lips 67 against the bearing surface 10.
  • the outer wall 64 of the adhesive channel 61 also secures the sealing ring 60 in its position against impacts or shocks, which are unavoidable during assembly of the drive unit 50. Thus, it is reliably avoided that the sealing ring 60 changes its position, which would possibly lead to leaks.
  • radially outwardly pointing nubs are formed on the outside of the sealing ring, which engage in the widening of the adhesive channel 61 and thus secure the sealing ring 60 against undesired rotation.
  • This is important because the gear wheel 1 in the Fig. 1 shown formed bearing surface 10 rests on the sealing lip 67 and rubs in operation with its underside on the sealing lip 67 of the sealing ring 60.
  • the sealing ring 60 is constantly subjected to shearing during the drive of the gear wheel 1.
  • a gluing channel 61 for gluing a sealing ring 60 is also inherently independent of the design of the gear part or of the other design of the drive unit.
  • Fig. 8 schematically shows in a sectional side view of an alternative embodiment of a drive unit 50 with a gear 1.
  • the gear 1 is rotatably mounted on the central axis 51 and formed as a worm whose teeth mesh with a driven by the drive motor 54 screw shaft 72.
  • the axis 52 has in the region of the gear wheel 1 on a metallic region, which is designed as a metallic sleeve 73.
  • To this metallic sleeve 73 is formed as a spiral spring wrap 74 with several turns, so that the function of a wrap spring brake is made.
  • Both the gear wheel 1 and the cable drum 2 have for this purpose in the interior a corresponding recess.
  • a half-shell 74 is integrally formed on the inner side facing the axis 52 for coupling to the wrap spring 74.
  • these two half-shells are shown as the only elements of the gear wheel 1 and the cable drum 2 for the sake of simplicity.
  • the two loop spring ends 75 each engage in the gap-shaped intermediate space 76 between the two half shells.
  • the gear wheel 1 is offset by means of the drive motor 54 in a rotational direction 77 clockwise or counterclockwise.
  • the two radially bent loop spring ends 75 and thus the wrap spring 74 are acted upon by the formed on the gear wheel 1 half shell.
  • This loading is in each case counter to the winding direction of the wrap spring designed as a spiral spring 74.
  • the winding diameter of the wrap spring 74 is thereby increased, so that the axis 52 is released.
  • the gear 1 and the form-fitting coupled cable drum 2 move freely on the axis 52.
  • the drive torque of the drive motor 54 is transmitted to the cable drum 2.
  • Fig. 10 shows in a schematic sectional view, the drive unit 50 in the transverse direction.
  • the drive motor 54 drives the worm shaft 72 mounted thereon by means of a shaft 85.
  • On the outside of the gear wheel 1 designed as a worm wheel a helical gear is arranged, which is in engagement with the worm shaft 72.
  • the gear wheel 1 With a movement of the worm shaft 72 about its longitudinal axis, the gear wheel 1 is rotated in a clockwise or counterclockwise direction.
  • this is set in a rotary motion.
  • one of the two cables acting on the cable drum 2 is wound up and the other cable is unwound.
  • the two drivers are moved along their guides for raising or lowering the window.
  • the shaft 85 Since the shaft 85 is mechanically loaded from the output side, the shaft 85 is supported by means of two bearings 86. Furthermore, a connected to the control unit 55 Hall sensor 87 is provided for speed measurement. The speed measurement serves to control the drive motor 54 either to adjust the drive power and / or as anti-jamming. The gear and the worm shaft 85 are acted upon in the gear compartment with a lubricant for reducing the friction. The lubricant can pass through the shaft to electrical fittings such as the Hall sensor 87 or the control unit 55 and cause failures there. According to the prior art, a sealing washer has been provided in the shaft space 88 for sealing the electrical installations against the lubricant so far. However, this made of a plastic sealing disc, however, has no complete sealing effect.
  • sealing washer a flexible sealing element 89 for sealing the electrical fittings against the lubricant.
  • the sealing element 89 has essentially the cross section of the shaft space 88. In addition, it has a cylindrical bore 90 for receiving the shaft 85. For assembly, the sealing element 89 is pushed onto the shaft, for example, prior to assembly of the worm shaft 72. However, it can also be slotted in the longitudinal direction 91 to be subsequently applied to the shaft 85.
  • the flexible sealing element 89 has a slightly larger cross-section than the shaft space 88. As a result, it is held in position. Since the bore 90 is dimensioned so that the sealing element 89 rests against the shaft 85, a complete seal is achieved. Since the inner dimension of the bore 90 is only slightly smaller than the outer dimension of the shaft 85, a virtually unimpeded rotational movement of the shaft 85 is still possible.
  • the sealing element is for example made of a rubber foam, a sponge rubber or other elastic sealing material. In particular, a slightly porous sealing material can absorb a larger amount of the sealant.

Landscapes

  • Window Of Vehicle (AREA)
  • Gear Transmission (AREA)
  • Power-Operated Mechanisms For Wings (AREA)

Abstract

La présente invention concerne une pièce de transmission (1, 2) destinée à un lève-vitre à câble et comprenant une roue de transmission (1) et un tambour à câble (2) qui peut être entraîné par la roue de transmission (1). La roue de transmission (1) et le tambour à câble (2) sont disposés sur un axe (52) commun. La roue de transmission (1) et le tambour à câble (2) sont couplés par complémentarité de forme d'une denture extérieure (5) présente sur une partie en saillie de périphérie intérieure (4), avec une denture intérieure (16) présente sur une partie en saillie en périphérie extérieure (15). Une chambre à raccord (40, 43) est insérée dans le tambour à câble (2) pour assurer la fixation de l'extrémité de câble. La chambre à raccord (40, 43) est disposée à l'intérieur de la partie en saillie de périphérie extérieure (15) en étant projetée sur un plan de section transversale perpendiculairement à l'axe (52). De cette manière, on obtient une structure plus compacte du tambour à câble (2) et une transmission d'un couple d'entraînement supérieur.

Claims (15)

  1. Pièce de transmission (1, 2) pour un système lève-vitre à câble, comprenant une roue de transmission (1) ainsi qu'un tambour à câble (2) pouvant être entraîné par la roue de transmission (1), pièce
    - dans laquelle la roue de transmission (1) et le tambour à câble (2) sont agencés sur un axe (52) commun,
    - dans laquelle la roue de transmission (1) et le tambour à câble (2) sont couplés mutuellement par engagement mécanique positif d'une denture extérieure (5) agencée sur une protubérance de périphérie intérieure (4) avec une denture intérieure (16) agencée sur une protubérance de périphérie extérieure (15),
    - dans laquelle une cavité de logement de mamelon de câble (40, 43) est formée dans le tambour à câble (2) pour une fixation de l'extrémité de câble, caractérisée
    - en ce que la cavité de logement de mamelon de câble (40, 43) est agencée, en projection sur un plan de section transversale perpendiculaire à l'axe (52), à l'intérieur de la protubérance de périphérie extérieure (15) et en-dehors du couplage d'engrènement des dentures extérieure et intérieure (5, 16), et
    - en ce que la protubérance de périphérie extérieure (15) s'engage en outre, sur la pièce correspondante, dans un canal annulaire (9).
  2. Pièce de transmission (1, 2) selon la revendication 1,
    caractérisée en ce que les dents (25, 27) de la denture extérieure (5) et/ou de la denture intérieure (16) présentent respectivement une structure sensiblement de forme parallélépipédique.
  3. Pièce de transmission (1, 2) selon la revendication 1 ou la revendication 2,
    caractérisée en ce que les dents (25, 27) de la denture extérieure (5) et/ou de la denture intérieure (16) sont respectivement chanfreinées dans la direction d'assemblage (32).
  4. Pièce de transmission (1, 2) selon l'une des revendications 1 à 3,
    caractérisée en ce que la protubérance de périphérie extérieure (15) avec la denture intérieure (16) est agencée sur le tambour à câble (2), et la protubérance de périphérie intérieure (4) avec la denture extérieure (5) est agencée sur la roue de transmission (1).
  5. Pièce de transmission (1, 2) selon la revendication 4,
    caractérisée en ce que la périphérie de tambour (18) du tambour à câble (2) est plus petite que la protubérance de périphérie extérieure (15).
  6. Pièce de transmission (1, 2) selon l'une des revendications 1 à 5,
    caractérisée en ce que la cavité de logement de mamelon de câble (40, 43) est formée tangentiellement à l'axe (52) dans le tambour à câble (2).
  7. Pièce de transmission (1, 2) selon l'une des revendications 1 à 6,
    caractérisée en ce que dans le tambour à câble (2) est formée une rainure à câble (41) reliant la périphérie de tambour (18) à la cavité de logement de mamelon de câble (40, 43).
  8. Pièce de transmission (1, 2) selon l'une des revendications 1 à 7,
    caractérisée en ce que dans le tambour à câble (2) sont formées deux cavités de logement de mamelon de câble (40, 43) décalées mutuellement dans la direction axiale et d'orientation opposée, et qui, toutes les deux, sont agencées, en projection sur un plan de section transversale perpendiculaire à l'axe (52), à l'intérieur de la protubérance de périphérie extérieure (15).
  9. Pièce de transmission (1, 2) selon la revendication 8,
    caractérisée en ce que les deux cavités de logement de mamelon de câble (40, 43) sont agencées de manière superposée dans la direction axiale et sont formées dans un canal traversant.
  10. Pièce de transmission (1, 2) selon l'une des revendications 1 à 9,
    caractérisée en ce que la roue de transmission (1) est réalisée sous la forme d'une roue tangente engrenant avec une vis sans fin (72).
  11. Pièce de transmission (1, 2) selon l'une des revendications 1 à 10,
    caractérisée en ce que sur l'axe (52) est agencé un ressort enroulé (74) dont les extrémités (75) sont en liaison active de déblocage avec la roue de transmission (1) et de blocage avec le tambour à câble (2).
  12. Pièce de transmission (1, 2) selon la revendication 11,
    caractérisée en ce que l'axe (52) est métallisé ou fabriqué en métal dans la zone du ressort enroulé (74).
  13. Unité d'entraînement (50) pour un système de lève-vitre à câble, comprenant un moteur d'entraînement (54), une unité de commande (55), et une pièce de transmission (1, 2) selon l'une des revendications 1 à 12, l'unité d'entraînement étant telle que le moteur d'entraînement (54), l'unité de commande (55) et la pièce de transmission (1, 2) soient montés sur un boitier (51) commun.
  14. Unité d'entraînement (50) selon la revendication 13 et la revendication 10,
    caractérisée en ce que la vis sans fin (72) est montée sur l'arbre (85) du moteur d'entraînement (54).
  15. Unité d'entraînement (50) selon la revendication 13 ou la revendication 14,
    caractérisée en ce que l'axe (52) de la pièce de transmission (1, 2) fait partie du boîtier.
EP08715827A 2007-02-20 2008-02-18 Pièce de transmission pour lève-vitre à câble et unité d'entraînement pour lève-vitre à câble Active EP2126262B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007002470U DE202007002470U1 (de) 2007-02-20 2007-02-20 Getriebeteil für einen Seilfensterheber sowie Antriebseinheit für einen Seilfensterheber
PCT/EP2008/001229 WO2008101648A1 (fr) 2007-02-20 2008-02-18 Pièce de transmission pour lève-vitre à câble et unité d'entraînement pour lève-vitre à câble

Publications (2)

Publication Number Publication Date
EP2126262A1 EP2126262A1 (fr) 2009-12-02
EP2126262B1 true EP2126262B1 (fr) 2011-09-28

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ID=39504800

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Application Number Title Priority Date Filing Date
EP08715827A Active EP2126262B1 (fr) 2007-02-20 2008-02-18 Pièce de transmission pour lève-vitre à câble et unité d'entraînement pour lève-vitre à câble

Country Status (4)

Country Link
US (1) US8176679B2 (fr)
EP (1) EP2126262B1 (fr)
DE (1) DE202007002470U1 (fr)
WO (1) WO2008101648A1 (fr)

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Also Published As

Publication number Publication date
DE202007002470U1 (de) 2008-07-03
EP2126262A1 (fr) 2009-12-02
US8176679B2 (en) 2012-05-15
US20100043294A1 (en) 2010-02-25
WO2008101648A1 (fr) 2008-08-28

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