EP3899174A1 - Serrure conçue pour un véhicule automobile - Google Patents

Serrure conçue pour un véhicule automobile

Info

Publication number
EP3899174A1
EP3899174A1 EP19828209.7A EP19828209A EP3899174A1 EP 3899174 A1 EP3899174 A1 EP 3899174A1 EP 19828209 A EP19828209 A EP 19828209A EP 3899174 A1 EP3899174 A1 EP 3899174A1
Authority
EP
European Patent Office
Prior art keywords
pawl
lock
coupling member
locking mechanism
drive element
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.)
Granted
Application number
EP19828209.7A
Other languages
German (de)
English (en)
Other versions
EP3899174B1 (fr
Inventor
Tobias Frohn
Udo Orzech
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 EP3899174A1 publication Critical patent/EP3899174A1/fr
Application granted granted Critical
Publication of EP3899174B1 publication Critical patent/EP3899174B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • E05B85/00—Details of vehicle locks not provided for in groups E05B77/00 - E05B83/00
    • E05B85/20—Bolts or detents
    • E05B85/24—Bolts rotating about an axis
    • E05B85/26—Cooperation between bolts and detents

Definitions

  • the invention relates to a lock for a motor vehicle, in particular a tailgate lock, having a locking mechanism with a catch and at least one pawl, a lock holder, the lock holder can be brought into engagement with the locking mechanism in at least one detent position, a drive element and a pivotable bearing point for the pawl, wherein the pawl can be actuated by means of at least one coupling rod and with the drive element.
  • locks or locking devices that hold the movable component in a closed position are used to close components that are movably fastened to the motor vehicle, in order to enable the vehicle to be guided safely.
  • These locking systems are increasingly being equipped with electric drives to make it easy for the operator to open a side door, for example.
  • Locking systems are not only used in side doors, but also in sliding doors, tailgates, bonnets and / or covers, just wherever moving components have to be kept in a secured position during the operation of the motor vehicle.
  • Locks are used in the locks or locking systems, consisting of a rotary latch and at least one pawl, which, in conjunction with a lock holder, allow the movable component to be secured. For example, if a side door of a motor vehicle is closed, a rotary latch located in an open position engages with a lock holder, the relative movement between Lock holder and rotary latch the rotary latch is rotated and secured in a pre-locking or main locking position by means of the pawl.
  • the side door or, for example, a tailgate is closed against the resistance of a seal, so that the locking mechanism counteracts a sealing pressure.
  • EP 2 573 301 B1 describes a locking system in which the pawl can at least partially follow an opening movement of the catch.
  • the locking mechanism can be opened electrically and where the pawl is connected to the drive element via a lever chain. If the drive is actuated to open the locking mechanism, the pawl can follow the movement of the catch at least in some areas and thus counteract the sealing pressure.
  • the lever chain has a variable-length lever that enables the unlocking of the locking mechanism to be braked.
  • a motor vehicle lock has become known with a catch which engages around a lock holder in the closed position and is biased in the direction of an open position releasing the lock holder, with a pawl which is in engagement with the catch in such a way that the catch Catch is prevented from moving in the direction of the open position.
  • the motor vehicle door lock has a drive element with which a coupling section of the Pawl is motion-coupled and the pawl is movable between the engaged position and a release position in which the pawl is disengaged from the catch so that the catch can move in the direction of the open position.
  • the drive element moves the pawl in such a way that the rotary latch, which is still engaged with the pawl during this movement, moves in the direction of the opening position.
  • the object of the invention is to provide an improved motor vehicle lock and in particular a patch flap lock.
  • a lock for a motor vehicle having a locking mechanism with a rotary latch and at least one pawl, a lock holder, the lock holder with the locking mechanism in at least a locking position can be brought into engagement, a drive element and a pivotable bearing point for the locking pawl, wherein the pawl can be actuated by means of at least one coupling rod and with the drive element, the coupling rod interacting with the pawl by means of a coupling member having a translation.
  • the construction of the motor vehicle lock according to the invention now creates the possibility of realizing a low-noise unlocking of the locking mechanism and a continuous opening process.
  • the structural design allows locking positions to be achieved, which enable the locking mechanism to be securely closed with the smallest possible space requirement.
  • the use of a coupling member, which incorporates a transmission ratio into the drive chain makes it possible to overcome the high closing forces which arise when the locking mechanism is opened, and then to guide the rotary latch into an open position.
  • the coupling member interacts with the pawl in such a way that the pawl is continuously released from the rotary latch via the coupling rod. Due to the continuous opening process, the actual tear-off noise between the rotary latch and the pawl can be eliminated or at least reduced to a minimum.
  • a motor vehicle lock includes such locks that are used in tailgates, but also in Be tent doors or covers or, for example, a backrest of a motor vehicle.
  • the locks can thus be used where components that can be pivoted or slidably are secured in one position.
  • the motor vehicle lock comprises a locking mechanism with a rotary latch and at least one pawl.
  • the locking mechanism interacts with a lock holder which is usually arranged in a fixed position on the motor vehicle, a relative movement between the locking mechanism and lock holder causing the rotary latch to rotate and the pawl securing the rotary latch in at least one latching position.
  • Locks are known, which with a ner Vorrast and a main catch are equipped, or locking mechanism, which have only one main catch position.
  • the locking mechanism can have one or two pawls which interact with one another. A first pawl blocks the catch in a latching position, the second pawl securing the first pawl in the latching position. This locking mechanism with two pawls is mostly used when an opening moment occurs in the locking mechanism in the main rest position.
  • the motor vehicle lock according to the invention is an electrically actuable motor vehicle lock, a drive element being seen before, with which the locking mechanism can be unlocked from the locking position.
  • the drive element can be a manually operated Bowden train or consist of at least one electric motor and a gear element connected downstream of the electromo tor, the gear element cooperating with the pawl in such a way that the pawl can be transferred from a latching position into an open position.
  • the pawl is moved by means of the drive element in such a way that the pawl can be pivoted around a bearing point.
  • the invention relates to a lock in which the pawl is taken up in a pivotable bearing and in which the pawl can be actuated by means of a coupling rod and by means of the drive element.
  • Swivel bearing means that the bearing for the pawl itself is movably received in the motor vehicle lock.
  • the bearing point for the pawl is preferably accommodated on a fixed radius and by means of a coupling member in the motor vehicle lock.
  • the coupling member forms a further gear element with which a translation in the ratchet he can be targeted.
  • the swiveling bearing point in particular through the translating mount, enables on the one hand a low-noise unlocking of the locking mechanism and on the other hand that the pawl can be pivoted beyond a dead center of the coupling member, so that a closing moment is established in the locking mechanism.
  • Closing moment means that the rotary latch exerts a moment on the pawl that prevents or prevents the locking mechanism from opening automatically.
  • the coupling member is pivotally received in a housing of the motor vehicle lock.
  • the coupling member is designed as a disk-shaped element and preferably as a stamped part.
  • the coupling member preferably consists of a steel material.
  • the coupling member itself is pivotable in the lock housing and / or in the lock case of the motor vehicle lock and in particular is received on a bearing axle made of a steel material and is preferably fastened by means of riveting.
  • the pawl is in turn pivotally mounted in the coupling member and can be wasted or moved by the coupling member on a circular path around the bearing axis of the coupling member.
  • the coupling member has a further receiving point, in particular a bearing point for the coupling rod.
  • the coupling member thus serves as a means for translating a torque introduced into the coupling member through the coupling rod, the torque being transferable to the bearing point of the pawl.
  • a different transmission ratio can be set with the arrangement of the bearings on the coupling element.
  • the bearings of the pawl and the coupling rod are arranged on different radii around the bearing point of the hitch be member on the coupling member.
  • the radial distance of the bearing of the pawl has a smaller distance to the central axis of the bearing of the coupling member than the radial distance of the bearing of the coupling lever to the center of the bearing of the hitch be member.
  • the bearing point of the coupling lever is further from the center of the bearing point of the coupling member than the bearing point of the pawl.
  • the coupling member has an ejector for the pawl, there is a further embodiment variant of the invention.
  • the coupling member moves the pawl, driven by the coupling rod, in such a way that the rotary latch moves to an open position. By moving the pawl on the radius around the bearing point of the coupling member around the rotary latch is continuously moved out of the latching position, whereby a reduction in the sealing pressure acting on the rotary latch can be achieved.
  • an ejector arranged on the coupling member can pivot or move the pawl out of the engagement area with the rotary latch.
  • the coupling member has an ejector surface which can be brought into engagement with the pawl.
  • the pawl In the now opened or unlocked position of the lock, the pawl can now be kept out of engagement with the rotary latch and / or can be kept out of engagement with the rotary latch by means of a storage lever, whereby a complete movement of the rotary latch into the open position is made possible.
  • the coupling member is pivotally received in the motor vehicle lock, the coupling member being movable by means of the coupling rod.
  • the coupling member can bring the pawl out of engagement with the rotary latch, there is also the possibility of pivoting the pawl after opening the locking mechanism and rotating the rotary latch into the open position of the pawl in a starting position in which the pawl again can be brought into engagement with the catch.
  • the coupling member pivots the bearing of the pawl after opening into a starting position, in which a closing moment in the locking mechanism is preferably adjustable.
  • the drive element has an eccentric receptacle for the coupling rod.
  • the drive element comprises an electric drive, preferably a DC motor, on the output shaft of which, for example, a worm can be mounted.
  • the worm acts together with a worm wheel, whereby a gear stage for unlocking the locking mechanism and in particular for driving the coupling rod can be achieved.
  • the coupling rod is preferably arranged eccentrically on the gearwheel of the transmission, so that the best possible torque can be introduced into the coupling rod and thus the coupling member.
  • the coupling rod can be arranged directly on the gear or on a control and drive element.
  • the control and drive element can be attached directly to the gear, so that, for example, a bearing axis for the coupling rod can be supported by means of the gear and / or the control and drive element.
  • the gear wheel or worm wheel can also be formed in one piece with the control and drive element. Even if a worm gear mechanism was shown here as an embodiment of the invention, it is of course also conceivable to use other gear geometries and to use gear wheels as drives for the coupling rod.
  • a further embodiment variant results when the drive element cooperates with the pawl in such a way that the pawl can be moved into an unlocking position by actuating the drive element in a single actuation direction.
  • the drive and in particular the electric motor, can preferably only be controlled in one drive direction, so that inexpensive and simple control of the drive element is possible.
  • the use of limit switches and / or stops in the motor vehicle lock can be dispensed with. This results in a constructive and thus cost advantage through the use of a single actuation direction for the drive elements.
  • the coupling member can advantageously be tilted back and forth by means of the drive element.
  • the coupling member is pivotally included in the motor vehicle lock, with a continuous rotary movement of the drive element by means of the coupling rod and the arrangement of the coupling rod in relation to the bearing point of the coupling member generates a Kippbe movement of the coupling member.
  • the coupling member is moved back and forth, with a forward movement being the movement in which the pawl is disengaged from the catch.
  • the movement, ie the return movement of the coupling member is referred to as the movement in which the pawl is moved back into the starting position, so that the catch can be brought into engagement again with the pawl. Due to the structural design, a continuous movement of the drive element can thus be converted into a tilting movement of the coupling member.
  • a Spei cher or locking lever serves that the pawl moved, for example by means of the ejector in an unlocked position, remains in the open, that is to say unlocked, position.
  • Storage lever is called the safety lever because the position of the pawl is saved. This can be advantageous if, for example, a load acts on a tailgate, such as a snow load, and thus the rotary lever cannot be moved freely into an open position. In this not fully open position of the rotary latch, it can happen that the pawl engages again, for example, in a forward latching of the rotary latch.
  • the safety lever is pivotally arranged in the motor vehicle lock and preferably in the lock housing and / or lock case of the motor vehicle. stuffed lock stored.
  • the memory or locking lever is made of plastic before given.
  • the coupling member has a first bearing point for the coupling rod and a second bearing point for the pawl, this results in a design variant which advantageously enables the transmission ratio to be influenced.
  • a translation is adjustable in the coupling member with which predeterminable, that is, definable moments for unlocking the locking mechanism can be set. This makes it possible, on the one hand, to achieve a space-saving structure which at the same time provides a low-noise but powerful unlocking of the locking mechanism.
  • FIG. 1 is a plan view of an open tailgate lock in a main locking position, only the lock components which are important for explaining the invention being shown,
  • FIG. 2 shows the top view of the tailgate lock according to FIG. 1, the pawl being at least partially moved out of the main latching position by means of the drive element, the coupling rod and the pivotable bearing point
  • Fig. 3 shows the further opening process of the locking mechanism with a movement of the pivotable bearing point of the ratchet ke, the pivotable bearing point coming into engagement with the pawl
  • Fig. 4 shows the pawl moved out of the engagement area with the rotary latch and the rotary latch in an open position
  • Fig. 5 shows the opened ratchet and the return process of the pawl in the starting position.
  • FIG. 1 shows a motor vehicle lock 1 constructed according to the invention in a plan view of the locking mechanism 2 and in a partially open view.
  • the locking mechanism 2 is reproduced in a main locking position, the rotary latch 3 being held in the main locking position by means of a pawl 4, so that a lock holder (not shown) can hold a tailgate in a closed position, for example.
  • the rotary latch 3 is pivotally mounted in a bearing point 5 in the lock housing 6 and / or in a lock case.
  • the pawl 4, however, is received in a pivotable bearing 7, the bearing 7 in turn being mounted in a coupling member 8.
  • the coupling member 8 is pivotally mounted like the rotary latch 3 in the lock housing 6 and / or the lock case.
  • the coupling member 8 performs a movement around the bearing point 9, a tilting movement around the bearing point 9 being carried out, as explained in more detail below.
  • the coupling member 8 itself is driven by means of a coupling rod 10 and an electrical drive element 11.
  • the electric drive element 11 comprises an electric motor 12, on the output shaft 13 of which a worm 14 is mounted.
  • the worm 14 meshes with a worm wheel 15.
  • the coupling rod 10 is by means of of the worm wheel and a control and drive element 16 which interacts with the worm wheel. By means of the control and drive element 16, the coupling rod 10 is driven on the one hand.
  • FIG. 2 thus shows the beginning of the locking operation of the locking mechanism 2.
  • the further opening process is shown in FIG.
  • the coupling member 8 has been pivoted further in the direction of arrow P2, whereby the catch 3 is able to rotate further in the opening direction, that is clockwise.
  • An external force F acts on the rotary latch 3, which is preferably exerted on the rotary latch 3 by the lock holder 21. If the rotary latch 3 is not in engagement with a lock holder 21, a leg spring, not shown, is arranged on the rotary latch 3, which also locks the rotary latch 3 in the opening direction, ie clockwise, spring-loaded.
  • the pivotable bearing point 7 has the effect that a continuous opening process takes place.
  • a continuous opening process is characterized in that the force F from the lock holder 21 is continuously reduced.
  • the highest load acts on the locking mechanism 2 in the main latching position, as shown in FIG. 1. Due to the continuous opening process, this maximum force is slowly, ie continuously reduced, so that the locking mechanism can be unlocked with little noise. The so-called demolition bang can be prevented or eliminated.
  • the coupling member 8 comes into position with an ejector 22 or an abutment surface of the coupling member 8.
  • the greatest pressure, which acts on the motor vehicle lock 1 in the main locking position of the locking mechanism 2 has been continuously reduced by moving the bearing 7 of the pawl. In this relaxed or at least largely relaxed position of the locking mechanism 2, a low-noise or noise-minimized opening of the locking mechanism 2 can now take place in the fol lowing.
  • FIG. 4 shows the fully opened locking mechanism 2, as a result of which the lock holder 21 is released.
  • the rotary latch 3 bears against a stop 23, which is preferably a rubber-elastic buffer element.
  • the rotary latch 3 is held in this open position by means of the rotary latch spring.
  • the pawl 4 was moved out of the engagement area with the rotary latch 3 by means of the ejector 22, so that an unimpeded movement of the rotary latch in the direction of the open position is possible.
  • a locking lever 24 is pivotally received in the motor vehicle lock 1, the securing lever 24 holding the pawl 4 in the unlocked position shown by FIG. 4.
  • the locking lever 24 is also called snow load lever because, due to a snow load acting on the tailgate, an opposite force F can be achieved, which can completely open the locking mechanism 2, that is to say move the rotary latch 3 in the open position. If the catch 3 is not moved fully into the open position, the pawl 4, in the case in which there is no safety lever 24, can come into engagement with the catch 3 again, so that unintentional closing and / or falling into one of the Example Before locking position of locking mechanism 2 could take place.
  • the locking lever 24 is pivoted about a bearing 25 in the motor vehicle lock 1 men. In Figure 4, the coupling member 8 has reached its bottom dead center position T in relation to the forces acting on the coupling lever 10.
  • the coupling member 8 By further turning the worm wheel 15 in the direction of arrow P1, the coupling member 8 is moved back into the starting position A.
  • the worm wheel 15 performs a movement in the direction of arrow P1, that is, the worm wheel is moved only clockwise in the direction of arrow P1.
  • the coupling member 8, on the other hand, is moved clockwise until the locking mechanism 2 is fully opened in the direction of arrow P2, after which moving back the coupling member 8 in the direction of arrow P3 moves back, so that a to-and-fro movement or a tilting movement of the coupling member 8 can be spoken.
  • the coupling member 8 is moved back into its starting position A, an upper dead center position TO being passed over in relation to the forces acting on the pawl.
  • the structure of the motor vehicle lock 1 according to the invention creates the possibility of providing an improved motor vehicle lock 1 which satisfies the highest requirements in terms of noise behavior and space requirements.

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne une serrure (1) conçue pour un véhicule automobile, en particulier une serrure de hayon (1), comprenant un dispositif d'encliquetage (2) qui comporte un pêne pivotant (3) et au moins un cliquet d'arrêt (4), un porte-serrure (21), ce porte-serrure (21) pouvant être mis en contact avec le dispositif d'encliquetage (2) dans au moins une position de blocage, un élément d'entraînement (11) et un point d'appui (7) pivotant pour le cliquet d'arrêt (4), ce cliquet d'arrêt (4) pouvant être actionné à l'aide d'au moins une tige d'accouplement (10) et avec l'élément d'entraînement (11), la tige d'accouplement (10) coopérant avec le cliquet d'arrêt (4) à l'aide d'un élément d'accouplement (8) réalisant une transmission.
EP19828209.7A 2018-12-21 2019-12-06 Serrure conçue pour un véhicule automobile Active EP3899174B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018133301.3A DE102018133301A1 (de) 2018-12-21 2018-12-21 Schloss für ein Kraftfahrzeug
PCT/DE2019/101052 WO2020125858A1 (fr) 2018-12-21 2019-12-06 Serrure conçue pour un véhicule automobile

Publications (2)

Publication Number Publication Date
EP3899174A1 true EP3899174A1 (fr) 2021-10-27
EP3899174B1 EP3899174B1 (fr) 2022-08-31

Family

ID=69024073

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19828209.7A Active EP3899174B1 (fr) 2018-12-21 2019-12-06 Serrure conçue pour un véhicule automobile

Country Status (5)

Country Link
EP (1) EP3899174B1 (fr)
JP (1) JP7363005B2 (fr)
CN (1) CN113195854B (fr)
DE (1) DE102018133301A1 (fr)
WO (1) WO2020125858A1 (fr)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5613716A (en) 1996-01-25 1997-03-25 General Motors Corporation Electronic vehicle door unlatch control
DE19736445B4 (de) * 1996-08-22 2006-06-08 Asmo Co., Ltd., Kosai-shi Türgliedverriegelungs-/entriegelungsvorrichtung
JP3232251B2 (ja) * 1996-08-22 2001-11-26 アスモ株式会社 扉体の施解錠装置
DE10239734A1 (de) * 2002-08-26 2004-03-11 Brose Schließsysteme GmbH & Co.KG Kraftfahrzeug-Klappenschluß o. dgl.
EP2573301B1 (fr) 2011-09-23 2017-05-03 Huf Hülsbeck & Fürst GmbH & Co. KG Fermeture arrière pour un véhicule automobile
DE102012107143A1 (de) * 2012-08-03 2014-02-20 Huf Hülsbeck & Fürst Gmbh & Co. Kg Kraftfahrzeugtürverschluss
DE102012102723A1 (de) 2011-09-23 2013-03-28 Huf Hülsbeck & Fürst Gmbh & Co. Kg Kraftfahrzeugtürverschluss
DE102012102724A1 (de) * 2012-03-29 2013-10-02 Huf Hülsbeck & Fürst Gmbh & Co. Kg Kraftfahrzeugtürverschluss
JP6427803B2 (ja) * 2014-07-01 2018-11-28 三井金属アクト株式会社 自動車用ドアラッチ装置
US10815700B2 (en) * 2015-12-30 2020-10-27 Inteva Products, Llc Release actuator for latch
DE102017212733A1 (de) * 2016-07-26 2018-02-01 Magna Closures Inc. Doppelzug-Haubenverrigelung mit Sperrvorrichtung

Also Published As

Publication number Publication date
DE102018133301A1 (de) 2020-06-25
CN113195854A (zh) 2021-07-30
JP7363005B2 (ja) 2023-10-18
WO2020125858A1 (fr) 2020-06-25
EP3899174B1 (fr) 2022-08-31
CN113195854B (zh) 2023-06-06
JP2022514327A (ja) 2022-02-10

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