EP3781769B1 - Kraftfahrzeug-antriebsanordnung - Google Patents

Kraftfahrzeug-antriebsanordnung Download PDF

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Publication number
EP3781769B1
EP3781769B1 EP19723637.5A EP19723637A EP3781769B1 EP 3781769 B1 EP3781769 B1 EP 3781769B1 EP 19723637 A EP19723637 A EP 19723637A EP 3781769 B1 EP3781769 B1 EP 3781769B1
Authority
EP
European Patent Office
Prior art keywords
spring
lever
motor vehicle
contour
spiral spring
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.)
Active
Application number
EP19723637.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3781769A1 (de
Inventor
Ömer INAN
Michael Scholz
Holger Schiffer
Peter Szegeny
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.)
Kiekert AG
Original Assignee
Kiekert AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kiekert AG filed Critical Kiekert AG
Publication of EP3781769A1 publication Critical patent/EP3781769A1/de
Application granted granted Critical
Publication of EP3781769B1 publication Critical patent/EP3781769B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/50—Powered actuators with automatic return to the neutral position by non-powered means, e.g. by springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
    • E05B81/04—Electrical
    • E05B81/06—Electrical using rotary motors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0403—Wound springs
    • E05B2015/042—Wound springs wound in a plane, e.g. spirally
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0486—A single spring working on more than one element
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E05B2015/0496—Springs actuated by cams or the like
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
    • E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B81/00—Power-actuated vehicle locks
    • E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
    • E05B81/32—Details of the actuator transmission
    • E05B81/34—Details of the actuator transmission of geared transmissions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/43—Motors
    • E05Y2201/434—Electromotors; Details thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefore
    • E05Y2201/47—Springs; Spring tensioners
    • E05Y2201/482—Ribbon springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/60—Suspension or transmission members; Accessories therefore
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/696—Screw mechanisms
    • E05Y2201/702—Spindles; Worms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2201/00—Constructional elements; Accessories therefore
    • E05Y2201/60—Suspension or transmission members; Accessories therefore
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/696—Screw mechanisms
    • E05Y2201/704—Worm wheels
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/531—Doors
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/1043—Swinging
    • Y10T292/1075—Operating means
    • Y10T292/1082—Motor

Definitions

  • the invention relates to a motor vehicle drive arrangement, with an electric motor and at least one driven element driven directly or indirectly by it, and with a spring assigned to the driven element, which is set up for the bidirectional return of the driven element.
  • Motor vehicle drive systems are used in many different ways in motor vehicles. Examples of this are mirror adjustments, seat adjustments, window regulators, but also unlocking on hoods, tailgates and the like. In addition, such motor vehicle drive arrangements are increasingly being used in conjunction with the locking and unlocking of charging plugs in associated sockets in electric vehicles. Within the scope of the present application, motor vehicle drive arrangements that are used in connection with motor vehicle doors and here in particular in connection with motor vehicle door locks are particularly preferably considered.
  • Such motor vehicle drive arrangements can be used, for example, in connection with a closing drive, a door drive and the like.
  • motor vehicle drive arrangements are used, for example, in connection with the so-called “electrical opening” or also to implement a central locking function.
  • the driven element that is driven or acted upon with the aid of the electric motor is returned to a rest position after it has been acted upon by the electric motor. This is typically ensured by the spring assigned to the driven element, which ensures that the driven element is reset.
  • the driven element can be moved, depending on, for example, its direction of rotation, both when acted upon clockwise and counterclockwise with the help of the single, bidirectionally acting spring in each case reset its zero or neutral position.
  • a comparable generic motor vehicle drive arrangement is in DE 102 26 355 B3 described.
  • the actuating device has an adjusting lever which can be pivoted about an axis of rotation between two stop or end positions by interacting with a cam wheel.
  • the cam wheel is in turn driven by an electric motor.
  • means are provided for spring loading of the adjusting lever into its respective end position.
  • This can be a bistable spring, referred to as a "flip-flop spring" in the publication.
  • the further state of the art also includes that by the EP 1 225 290 A2 known motor vehicle door lock.
  • This has a motor vehicle drive arrangement, in the specific case a ratchet drive.
  • the pawl drive acts by means of a driven pulley on an extension on the pawl to release a rotary latch.
  • the driven pulley has a guide curve for the here along moving process.
  • the driven pulley is also equipped with a spiral return spring for the entire ratchet drive. The restoring spring rests against a stop with its end remote from the center and can only have an effect in one direction.
  • the invention is based on the technical problem of further developing such a motor vehicle drive arrangement in such a way that permanently safe operation is ensured. In addition, it should be possible to realize higher spring moments than before.
  • a generic motor vehicle drive arrangement is characterized within the scope of the invention in that the spring set up for the bidirectional return of the driven element is designed as a spiral spring which can be wound up by both the inner and the outer spring leg.
  • a spiral spring is used as a bidirectional spring for the first time.
  • the spiral spring which acts in two directions, can be wound up starting from the outer spring leg on the one hand and starting from the inner spring leg on the other, so that in this way the driven element is subjected to the desired restoring forces in both basic directions with the help of the spiral spring.
  • the driven element is advantageously a worm wheel which rotates back and forth about an axis. Consequently, the worm wheel can rotate clockwise as well as counterclockwise. In both directions, the worm wheel ensures that the spiral spring is tensioned. After the worm wheel is no longer subjected to pressure, the spiral spring ensures, according to the invention, that the worm wheel is returned to a neutral position or idle position with the aid of the spiral spring.
  • the inner spring leg of the spiral spring is equipped with a connected lever.
  • the lever is provided with an opening in detail, which is set up for engaging the inner spring leg.
  • the output element has a contour that interacts with the spiral spring.
  • the connected lever can also be designed in two parts and/or the lever and spiral spring can be arranged on a common axis present as a separate component. Also
  • the contour like the spiral spring, is arranged on a rear side of the driven element.
  • actuating contour of the output element when the motor vehicle drive arrangement is used, for example for electrical opening, a release lever of a motor vehicle door lock can be acted upon, which in turn lifts an associated pawl as part of a locking mechanism made up of pawl and rotary latch from its engagement with the rotary latch.
  • the actuating contour can also work on a central locking lever in the described field of application in connection with motor vehicle door locks and pivot it into the two positions “unlocked” and “locked”, for example.
  • the actuating contour interacts with a child safety lever, for example by working on such a child safety lever.
  • the child safety lever can be moved into its “child-safety” and “child-unlocked” positions with the aid of the actuating contour.
  • the actuating contour can also interact with an anti-theft lever and convert it into the “anti-theft” and “anti-theft” positions in a comparable manner.
  • all this is only exemplary and is in no way restrictive.
  • the worm wheel generally rotates around its axis of rotation in both clockwise and counterclockwise directions.
  • Rotary movements of the at least one actuating contour on the front side of the output element which correspond to the corresponding rotary movements.
  • the actuating contour is able to implement the exemplary positions described above, such as lifting the pawl or moving a central locking lever into the “unlocked” and “locked” positions.
  • the driven element after being acted upon, is brought back into the rest position or neutral position with the aid of the electric motor, in order to then be able to implement a further electrical opening process or central locking process, the corresponding movement of the driven element in both directions described (clockwise and anti-clockwise) ensures that that the spiral spring is tensioned.
  • the contour interacts with both the outer spring leg of the spiral spring and the lever and thus the inner spring leg of the spiral spring.
  • the driven element advantageously has only a single contour, which acts on both the lever and the outer spring leg of the spiral spring, depending on the direction of rotation and working of the driven element. Basically, of course, with two or more different contours are worked.
  • the embodiment of the invention can also be such that the connected lever has the actuating contour.
  • spiral spring which acts bidirectionally for resetting, means that higher spring moments and thus restoring moments for the output element can be realized in practice with the help of the spiral spring in question compared to a torsion spring.
  • spiral springs of this type can in principle be equipped with larger spring constants than torsion springs in the context described.
  • spiral springs generally permit a much greater travel of the driven element and the associated contour than is observed with torsion springs. As a result of this, a significantly higher strength and thus also an increased service life is observed for spiral springs in comparison to torsion springs or helical coil springs.
  • the spiral spring together with the contour and the lever connected to the inner spring leg of the spiral spring, is located on the back of the output element and in this way only takes up a small amount of space. This means that a particularly compact embodiment is made available.
  • the loading of the spiral spring used according to the invention takes place when the driven element is actuated in its longitudinal direction.
  • the torsion spring is transverse to such a process Longitudinal applied.
  • material fatigue and fractures can occur in such torsion springs under high loads and long-term operation.
  • spiral springs are not only characterized by the possible high spring constants due to their force application and spring effect in the longitudinal direction, but as a result also by the fact that permanent and safe operation is made available. This is where the main advantages can be seen.
  • a motor vehicle drive arrangement is shown in the figures.
  • the motor vehicle drive arrangement is built into a housing 1 of a motor vehicle door lock. This of course only applies as an example and is in no way restrictive.
  • the motor vehicle drive arrangement has an electric motor 4 and an output element 5 which is driven directly or indirectly with the aid of the electric motor 4 .
  • the electric motor 4 provides a direct drive for the driven element 5.
  • the electric motor 4 has a driven worm 6 on its output shaft on the output side, which meshes with a toothing, not shown in detail, on the driven element 5 designed as a worm wheel 5.
  • the worm wheel 5 can rotate clockwise and counterclockwise around its in the 1 indicated axis 7 perform, as a double arrow in the 1 hints.
  • the electric motor 4 drives the output element 5 only indirectly, for example via a transmission connected in between.
  • a clockwise rotation of the worm wheel 5 ensures that a arranged on the front side of the worm wheel 5 actuating contour 8 after completing a in the 1 indicated actuation path to rest on the release lever 2 comes.
  • the further clockwise movement of the actuating contour 8 then ensures that the release lever 2 to its in the 1 indicated axis is also pivoted clockwise, like another arrow in the 1 makes clear.
  • the pivoting movement of the actuating lever 2 causes the pawl 3 to be lifted from its engagement with a rotary latch, not shown in detail.
  • the associated and perpendicular to the drawing plane in the 1 arranged locking mechanism is opened. That is, the motor vehicle drive assembly shown is in the example after 1 used and used for "electrically opening" the motor vehicle door lock shown there or its locking mechanism.
  • a spring 9 assigned to the output element 5 is also provided.
  • the spring 9 is set up for the bidirectional return of the driven element 5 . That is, the spring 9 ensures in both principle in the 1 implied Directions of rotation of the worm wheel 5 each ensure that after the omission of an application of the worm wheel 5 by the electric motor 4, the worm wheel 5 each in its in the 1 solid shown neutral position or rest position is transferred.
  • the spring 9 is tensioned in both directions of rotation with a corresponding movement process. As soon as the electric motor 4 no longer acts on the worm wheel 5, the spring 9 can relax and ensures that the worm wheel 5 is spring-loaded into the in 1 shown neutral or rest position is reset.
  • the spring 9 is a spiral spring 9.
  • the spiral spring 9 has an inner spring leg 9a and an outer spring leg 9b.
  • the spiral spring 9 can wind up both starting from the inner spring leg 9a and starting from the outer spring leg 9b, as will be explained in more detail below.
  • the inner spring leg 9a of the spiral spring 9 has a lever 10 connected thereto.
  • the lever 10 is equipped with an opening 10a, in which the inner spring leg 9a of the spiral spring 9 engages.
  • the lever 10 is rotatably connected to the output member 5 . In most cases, the common axis 7 is used. Since the lever 10 overlaps the spiral spring 9 in this case, the spiral spring 9 is held in the space between the driven element 5 and the lever 10 . In addition, the end of the inner spring leg 9a is secured in the opening 10a of the lever 10.
  • the worm wheel 5 has a contour 11 that interacts with the spiral spring 9 .
  • the contour 11 is found as well as the spiral spring 9 and the lever 10 on the back of the worm wheel 5, whereas previously already with reference to 1 described actuating contour 8 is arranged on the front side of the worm wheel 5.
  • the contour 11 can interact both with the outer spring leg 9b of the spiral spring 9 and with the lever 10 and thus with the inner spring leg 9a of the spiral spring 9 .
  • the contour 11 is designed as an arcuate contour, the radius of which is adapted to the radius of the circular worm wheel 5 . In this way, one leads in the 2 indicated rotational movement of the worm wheel 5 counterclockwise and clockwise to the fact that the contour in question 11 interacts either with the lever 10 and thus the inner spring leg 9a or the outer spring leg 9b of the spiral spring 9 respectively.
  • the contour 11 ensures that the lever 10 is also pivoted counterclockwise.
  • the spiral spring 9 is tensioned by being wound up, starting from the inner spring leg 9a, and the lever 10 moves away from an associated stop 12.
  • the outer spring leg 9b remains at rest due to its contact with a further associated stop 13.
  • the contour 11 works on the outer spring leg 9b and lifts it from the associated further stop 13. Then the inner spring leg 9a remains at rest via the lever 10 due to its contact with the stop 12. In both cases, the spiral spring 9 is wound up starting from the inner spring leg 9a as well as from the outer spring leg 9b and consequently tensioned. As soon as the loading of the worm wheel 5 is omitted in the example described, the spiral spring 9 can relax and the inner spring leg 9a or the connected lever 10 against the associated stop 12. The same applies to the outer spring leg 9b, which rests against the associated stop 13 when the coil spring 9 relaxes.
  • the worm wheel 5 on the one hand and the spiral spring 9 on the other hand are designed independently of one another.
  • This means that the spiral spring 9 is held in contact with the driven element or worm wheel 5 with the aid of, for example, the lever 10, but is not coupled to the worm wheel 5 in any way.
  • the spiral spring 9 can be wound up and unwound as described both from the inner spring leg 9a and from the outer spring leg 9b with the aid of the worm wheel 5 or the contour 11 fitted thereon.
EP19723637.5A 2018-04-20 2019-04-05 Kraftfahrzeug-antriebsanordnung Active EP3781769B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018109477.9A DE102018109477A1 (de) 2018-04-20 2018-04-20 Kraftfahrzeug-Antriebsanordnung
PCT/DE2019/100313 WO2019201380A1 (de) 2018-04-20 2019-04-05 Kraftfahrzeug-antriebsanordnung

Publications (2)

Publication Number Publication Date
EP3781769A1 EP3781769A1 (de) 2021-02-24
EP3781769B1 true EP3781769B1 (de) 2022-06-22

Family

ID=66529720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19723637.5A Active EP3781769B1 (de) 2018-04-20 2019-04-05 Kraftfahrzeug-antriebsanordnung

Country Status (5)

Country Link
US (1) US11466486B2 (zh)
EP (1) EP3781769B1 (zh)
CN (1) CN111989451B (zh)
DE (1) DE102018109477A1 (zh)
WO (1) WO2019201380A1 (zh)

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Publication number Priority date Publication date Assignee Title
DE102020116339A1 (de) 2020-06-22 2021-12-23 Kiekert Aktiengesellschaft Verfahren zur Temperatur-Überwachung und -Steuerung bei elektrischen Kraftfahrzeug-Antriebs- und/oder -Bremseinheiten
DE102021106210A1 (de) 2021-03-15 2022-09-15 Kiekert Aktiengesellschaft Elektromotorischer Antrieb für kraftfahrzeugtechnische Anwendungen
US11920375B2 (en) * 2021-04-08 2024-03-05 Schlage Lock Company Llc Modular bidirectional spring cage

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CN107035230B (zh) * 2017-06-11 2018-06-19 北华大学 指纹锁的凸轮机构及转动环强制复位装置

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EP3781769A1 (de) 2021-02-24
US20210032912A1 (en) 2021-02-04
US11466486B2 (en) 2022-10-11
CN111989451A (zh) 2020-11-24
CN111989451B (zh) 2022-04-05
WO2019201380A1 (de) 2019-10-24
DE102018109477A1 (de) 2019-10-24

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