EP3857010B1 - Serrure de véhicule automobile - Google Patents

Serrure de véhicule automobile Download PDF

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Publication number
EP3857010B1
EP3857010B1 EP19766168.9A EP19766168A EP3857010B1 EP 3857010 B1 EP3857010 B1 EP 3857010B1 EP 19766168 A EP19766168 A EP 19766168A EP 3857010 B1 EP3857010 B1 EP 3857010B1
Authority
EP
European Patent Office
Prior art keywords
pawl
opening lever
motor vehicle
locking
rotary latch
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
EP19766168.9A
Other languages
German (de)
English (en)
Other versions
EP3857010A1 (fr
Inventor
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 EP3857010A1 publication Critical patent/EP3857010A1/fr
Application granted granted Critical
Publication of EP3857010B1 publication Critical patent/EP3857010B1/fr
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
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/36—Noise prevention; Anti-rattling means

Definitions

  • the invention relates to a motor vehicle lock having a locking device with a rotary latch and at least one pawl, the rotary latch being lockable in at least one latching position by means of the pawl and a separate latching element arranged in the engagement area between the rotary latch and the pawl, the latching element being pivotably received in a bearing point of the pawl is.
  • the motor vehicle lock and in particular the locking device arranged in the motor vehicle lock interacts with a lock holder, which is usually attached to the motor vehicle body.
  • the locking mechanism consisting of a rotary latch and a pawl, is moved into a locking position using the lock holder. This locking position then makes it possible to position and hold the movable component securely while using the motor vehicle.
  • the locking position is achieved by the pawl engaging in a locking surface of the rotary latch, so that the locking mechanism can move into a main locking position, for example.
  • the interaction between the locking parts, i.e. the rotary latch and the pawl causes closing and opening noises, which significantly influence the comfort behavior of the motor vehicle lock.
  • a first pawl acts on the rotary latch, which holds the rotary latch in a locking position in interaction with the lock holder.
  • the rotary latch and pawl are aligned with each other or engage with each other in such a way that the interaction of the rotary latch and pawl results in an opening moment.
  • the rotary latch pushes the pawl out of the area of engagement with the rotary latch.
  • another pawl is used, which is also called a blocking lever due to its function.
  • the additional pawl or the blocking lever keeps the pawl in engagement with the rotary latch.
  • the position of the pawl in the area of engagement with the rotary latch is thus blocked.
  • To open such a locking mechanism it is only necessary to disengage the blocking lever from the pawl, whereby the locking mechanism then opens automatically. The opening moment pushes the pawl out of the area of engagement with the rotary latch, so that the locking mechanism can be opened easily and quietly.
  • the document DE102014115490 also reveals a locking mechanism with several pawls.
  • a motor vehicle lock has become known in which a locking element in the form of a cylinder or a ball is arranged in the engagement area between the rotary latch and the pawl in order to achieve a favorable feel and acoustics of the motor vehicle lock.
  • a guide cage is disclosed in the publication, the guide cage being arranged either on the pawl or on the rotary latch.
  • the use of a guide cage and the attachment of the guide cage to the rotary latch or pawl is tied to a complex manufacturing process, with the highest levels of accuracy only being tied to the most complex and therefore cost-intensive manufacturing processes, particularly with regard to guiding the locking element.
  • the generic state of the art is therefore not convincing in all respects. This is where the invention comes into play.
  • the object of the invention is to provide an improved motor vehicle lock.
  • it is the object of the invention to provide a motor vehicle lock that is easy to open and has favorable acoustics.
  • a motor vehicle lock comprising a locking device with a rotary latch and at least one pawl, the rotary latch being lockable in at least one latching position by means of the pawl and a separate latching element arranged in the engagement area between the rotary latch and the pawl, the latching element being pivotably received in a bearing point of the pawl, whereby the Locking element is designed as an opening lever, wherein the bearing point is designed as an elongated hole and wherein the opening lever has at least one radius contour, so that rolling of the opening lever on the rotary latch and / or the pawl is possible.
  • the inventive design of the motor vehicle lock using an opening lever now makes it possible to open the locking mechanism with very low opening forces.
  • the use of a lever makes it possible to easily move the locking element in the area of engagement between the rotary latch and the pawl.
  • This also applies to the case in which the locking element is locked in a main locking position under a high load, for example.
  • the force acting on the pawl and the locking element results largely from a seal that seals the component movably arranged on the motor vehicle with respect to an interior of the motor vehicle. This sealing pressure results in a force that acts on the locking element and the pawl through the interaction between a lock holder and the rotary latch.
  • the pawl experiences a force from a rotary latch spring, which biases the rotary latch towards an open position.
  • a rotary latch spring which biases the rotary latch towards an open position.
  • the locking element is designed as an opening lever, that is, the pivoting movement can be carried out via a lever arm, so that a
  • the locks used in motor vehicle locks have a rotary latch that interacts with a lock holder.
  • the rotary latch is moved into a locking position by means of a relative movement between the motor vehicle lock and the lock holder, in which the locking position is secured by means of the pawl.
  • the invention includes locking devices with a preliminary detent and/or a main detent.
  • a neutral moment occurs when the rotary latch introduces a force into the pawl that runs through the center of the axis of rotation of the pawl.
  • a force can be introduced into the pawl by means of the rotary latch, which preloads the pawl in an opening direction.
  • the pawl is then moved out of the locking position using the rotary latch pushed out.
  • another pawl can be used, which then blocks the opening of the locking mechanism from the locking position.
  • additional pawls are also referred to as blocking levers.
  • the opening lever can be used on the pawl regardless of the structure of the locking mechanism.
  • the opening lever rests with a first portion between the pawl and the catch and, with the first portion, forms the locking element that pivots between the catch and the catch.
  • the first portion of the opening lever is adjoined by a second portion, which forms a lever arm.
  • the lever arm makes it possible to move the locking element with low forces and thus advantageously reduce the forces or moments necessary to open the locking mechanism, which in turn has a positive effect on, for example, an electric drive for unlocking the locking mechanism.
  • the locking element forming the first portion of the opening lever is pivotally accommodated in the pawl, preferably the pawl forms a bearing point for the opening lever, the opening lever being able to be stored in the pawl, for example in a form-fitting manner and, for example, by means of a bayonet lock.
  • the opening lever is accommodated in the pawl by means of a separate bearing means, such as a bearing axle.
  • the locking system or motor vehicle lock can also have a lock housing in which the locking mechanism, a locking unit, an actuation unit, an electric drive and/or transmission parts can be arranged.
  • a lock housing in which the locking mechanism, a locking unit, an actuation unit, an electric drive and/or transmission parts can be arranged.
  • the lock housing is preferably designed as a plastic injection molded part and can consist of at least one lock housing cover and a lock housing shell.
  • the lock housing primarily serves to protect the functional components from, for example, moisture and/or dirt.
  • the lock housing components are connected to one another in a sealing manner at least in some areas.
  • the lock case can be designed as a bending stamped part and encloses the lock housing at least in some areas and/or on two or more sides.
  • the lock case can enclose an inlet mouth for the lock holder and thus serve to further stabilize the lock.
  • the motor vehicle lock is directly connected and screwed to the motor vehicle body via the lock case or a lock plate as a flat lock case.
  • Means for mounting, for example mounting openings, are preferably provided as threads in the lock plate.
  • the opening lever is pivotably guided in the motor vehicle lock around the bearing point in the pawl.
  • the opening lever is moved around the bearing point in the pawl in the motor vehicle lock, with a guide preferably being provided for the opening lever.
  • the opening lever itself forms part of the guide and can be guided in a form-fitting manner in a guide track, for example of the lock housing.
  • the guide on the opening lever engages in a form-fitting manner in a release lever, with the opening lever being able to be moved by means of the release lever.
  • the pivoting movement of the opening lever causes a circular arc section-shaped movement of the opening lever and in particular a guide of the opening lever, so that a guide track can advantageously be made available through the lock case, the lock housing and/or a reinforcing plate.
  • a guide track can advantageously be made available through the lock case, the lock housing and/or a reinforcing plate.
  • the bearing point of the opening lever in the pawl can be designed as an elongated hole. Designing the bearing point in the pawl as an elongated hole offers the advantage that the opening lever can roll in the pawl. The bearing point can thus enable the opening lever to roll on the pawl and thus support a quiet opening of the locking mechanism.
  • the elongated hole allows rolling movements and prevents the locking parts from sliding off one another. When slipping, high frictional forces occur and at the same time, in particular Noises are generated in areas of high load.
  • the opening lever is accommodated on both sides in the bearing point of the pawl.
  • Mounting the opening lever on both sides provides additional security to stabilize the locking mechanism. Securing the position can be particularly advantageous if the locking mechanism is exposed to an extreme situation. Such extreme situations can occur if, for example, very high forces act on the locking mechanism. Very high forces can act on the motor vehicle, for example as a result of an accident. Even in such an extreme case, the locking mechanism must ensure secure locking and thus closing of the lock. Storage on both sides prevents the opening lever from moving out or tilting and increases safety in the locking mechanism.
  • the opening lever has at least one radius contour, so that rolling of the opening lever on the rotary latch and/or the pawl is possible.
  • a rolling movement can be achieved between the locking element and the rotary latch.
  • the opening lever and in particular the first portion of the opening lever, which is in engagement with the rotary latch can then be moved by means of a movement of the opening lever is located, unrolled on the locking surface of the rotary latch, that is, rolled off.
  • a rolling movement can be very quiet and differs significantly from a sliding movement, as occurs with conventional locks.
  • the locking element arranged between the rotary latch and the pawl is designed to be biconvex, that is to say there is a first radius contour on the locking surface of the rotary latch and a further radius contour in the area of engagement with the pawl.
  • a rolling opening of the locking mechanism can be achieved.
  • the locking element has a uniform radius on the contact surfaces between the rotary latch and the pawl, so that, starting from a center of the bearing point of the opening lever in the pawl, the locking element can have a partially symmetrical design.
  • a spring element in particular a leg spring, is provided in the motor vehicle lock, the leg spring being arranged in such a way that the opening lever experiences a preload in a closing direction, this results in a further embodiment variant of the invention.
  • a spring preload on the opening lever secures the position of the opening lever, particularly in a latching position.
  • the significantly reduced forces required to unlock the locking mechanism due to the design of an opening lever also mean that An unlocking process can be initiated by an unintentional movement of the opening lever.
  • a spring element is arranged in such a way that the opening lever is spring-loaded in the latching positions, that is to say it is held in the latching position with a preload.
  • a spring leg of the leg spring lies continuously on an outer surface of the opening lever, this offers the advantage that, on the one hand, the locking positions can be secured and, on the other hand, a quiet movement of the opening lever is made possible during the rolling movement of the locking element between the rotary latch and the pawl. Thanks to the spring preload, the opening lever can, for example, be guided safely in a guideway and deflected with little noise. By applying a preload to the opening lever, rattling noises caused by play can also be prevented, for example in an open position of the locking mechanism.
  • the opening lever in particular the locking element
  • the locking element rolls between the pawl and the rotary latch.
  • the rolling can take place between the bearing point and the rotary latch or the rotary latch, the bearing point and the pawl. The rolling transfers the locking mechanism from a resting position in which, for example, there is a closing or neutral moment in the locking mechanism is present towards an opening moment.
  • the opening process of the locking mechanism is significantly influenced by the force introduced into the rotary latch.
  • a further embodiment variant of the invention is achieved when the pawl comes to rest in a latching position against a stop surface of a stop.
  • an additional securing means can be provided for the locking mechanism.
  • the depth of incidence of the pawl into the rotary latch can be determined and on the other hand, the locking element can be held securely in the engagement area.
  • the pawl as well as the opening lever then lie firmly against the stop and are held in the locking position by means of the spring element. A safe and quiet one Locking and in particular maintaining the locking position can thus be guaranteed.
  • the opening lever can be guided at least in certain areas by means of a lock case and/or a lock housing in the motor vehicle lock. Due to the design of the locking element as an opening lever, the opening lever extends from the bearing point in the pawl to a lever arm. In order to enable a defined and tilt-free movement of the lever arm, the lever arm can be guided in the lock housing and lock case and/or a reinforcement plate and/or a release lever. Particularly when high forces act on the locking mechanism, safe guidance is necessary, for example to unlock the locking mechanism. Tilting the opening lever creates the risk that the pawl could come out of engagement with the rotary latch and/or the locking element could get jammed in the locking mechanism. By guiding the opening lever, tilting can be avoided and thus another means for safely operating the motor vehicle lock can be provided.
  • FIG. 1 is a side view of a motor vehicle lock 1 in a basic representation and in a view of a lock 2.
  • the locking mechanism 2 includes a rotary latch 3, as well as a pawl 4, and an opening lever 5.
  • the opening lever 5 is biased by means of a leg spring 6 in the direction of the main locking position shown.
  • a spring leg 7 of the leg spring 6 rests on an outer surface of the opening lever 5.
  • the opening lever 5 is pivotally accommodated in a bearing point 8 of the pawl 4.
  • the pawl has an elongated hole 9, an axis 10 of the opening lever 5 being mounted in the elongated hole 9.
  • the pawl 4 in turn is pivotally received by means of an axis 11 in, for example, a lock case 12 of the motor vehicle lock 1.
  • the opening lever 5 rests on the pawl 4 with a guide means 13.
  • the opening lever 5 is divided into a locking element 14, the guide means 13 and the lever arm 15.
  • an opening 16 or a bolt 16 can be arranged in order to pivot the opening lever 5 around the bearing point 8.
  • the opening lever 5 can be operated manually or electrically.
  • the guide means 13 can be designed in several parts and consist, for example, of a damping element 17 and a guide pin 18.
  • the damping element 17 By means of the damping element 17, the opening lever 5 can be brought into contact with the pawl in a damping manner, with the opening lever 5 being able to be guided, for example, in a guide track (not shown) by means of the guide pin 18.
  • the locking element 14 comes into contact with the rotary latch 3 on a locking surface 19, in particular a main locking surface.
  • the locking element 14 is at least partially symmetrical about the axis 10.
  • the latching element 14 lies against the latching surface 19, the latching element 14 being in engagement with a second radius contour 21 with a rolling surface 22 of the pawl 4.
  • the opening lever 5 is constructed in one piece and can have a plastic coating at least in some areas.
  • a plastic casing is advantageous, for example, where the opening lever 5 rests on the pawl 4, that is, in the areas in which there is sliding friction between the pawl 4 and the opening lever 5.
  • the opening lever 5 preferably has a metallic core, but in some areas it can also be made of plastic.
  • the locking mechanism 2 is shown in a position in which the opening lever 5 moves in the direction of the arrow P along a circular path K, as exemplified in the Figure 3 is shown as a dash-dotted line and has been pivoted in the direction of arrow P.
  • the contour 20 rolls on the locking surface 19, with the contour 21 rolling on the rolling surface 22 of the pawl 4 at the same time.
  • the axis 10 is able to move within the pawl 4 and to enable the locking element 14 to roll on the pawl 4 as well as the rotary latch 3.
  • the opening moment causes the pawl to be pivoted further clockwise in the direction of arrow P2, whereby the radius contour 20 can slide off the locking surface 19.
  • a superimposed opening movement is therefore achieved, with the locking element 14 sliding onto the rotary latch 3 following a first rolling of the locking element 14 on the locking surface 19 of the pawl 3.
  • the locking mechanism 2 is now unlocked, so that the rotary latch 3 can release the lock holder and the rotary latch 3 is moved back into the open position.
  • the opening lever 5 can slide along the rotary latch 3 and in particular past a surface 25 of the rotary latch 3, so that restoring noises of the pawl 4 in relation to the rotary latch 3 can be prevented.
  • the pawl 4 can have a spring element that biases the pawl 4 in the direction of the rotary latch 3.
  • the damping element 17 there is the possibility that in the Figure 3 to dampen the illustrated opening position of the opening lever 5 in interaction with the pawl and the damping element 17.
  • the structure of the locking mechanism 2 according to the invention results in a motor vehicle lock that operates with low noise and requires only small opening forces due to the use of the opening lever 5.

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  • Lock And Its Accessories (AREA)

Claims (8)

  1. Serrure de véhicule automobile (1) présentant un mécanisme de verrouillage (2) comportant un loquet rotatif (3) et au moins un cliquet d'arrêt (4), dans laquelle le loquet rotatif (3) peut être encliqueté dans au moins une position d'encliquetage au moyen du cliquet d'arrêt (4) et un élément d'encliquetage (14) séparé agencé dans une zone de mise en prise entre le loquet rotatif (3) et le cliquet d'arrêt (4), dans laquelle l'élément d'encliquetage (14) est reçu de manière pivotante dans un point d'appui (8) du cliquet d'arrêt (4), dans laquelle l'élément d'encliquetage (14) est réalisé sous la forme d'un levier d'ouverture (5), caractérisée en ce que le point d'appui (8) est conçu sous la forme d'un trou oblong (9), dans laquelle le levier d'ouverture (5) présente au moins un contour à rayon (20, 21), de sorte qu'un roulement du levier d'ouverture (5) sur le loquet rotatif (3) et/ou le cliquet d'arrêt (4) peut être rendu possible.
  2. Serrure de véhicule automobile (1) selon la revendication 1, caractérisée en ce que le levier d'ouverture (5) est guidé autour du point d'appui (8) de manière pivotante dans la serrure de véhicule automobile (1).
  3. Serrure de véhicule automobile (1) selon l'une des revendications 1 ou 2, caractérisée en ce que le levier d'ouverture (5) est reçu des deux côtés dans le point d'appui (8).
  4. Serrure de véhicule automobile (1) selon l'une des revendications 1 à 3, caractérisée en ce qu'un élément élastique (6), en particulier un ressort à branches (6), est prévu, dans laquelle le ressort à branches (6) est agencé dans la serrure de véhicule automobile (1) de telle sorte que le levier d'ouverture (5) subit une précontrainte (F) dans une direction de fermeture.
  5. Serrure de véhicule automobile (1) selon la revendication 4, caractérisée en ce qu'une branche de ressort (7) du ressort à branches (6) repose de manière continue sur une surface externe du levier d'ouverture (5).
  6. Serrure de véhicule automobile (1) selon l'une des revendications 1 à 5, caractérisée en ce que le levier d'ouverture (5) roule, pendant un mouvement de déblocage, uniquement par zones sur le loquet rotatif (3) et/ou le cliquet d'arrêt (4).
  7. Serrure de véhicule automobile (1) selon l'une des revendications 1 à 6, caractérisée en ce que le cliquet d'arrêt (4) vient en butée contre une surface de butée d'une butée (23) dans une position d'encliquetage.
  8. Serrure de véhicule automobile (1) selon l'une des revendications 1 à 7, caractérisée en ce que le levier d'ouverture (5) peut être guidé au moins par zones au moyen d'un palastre de serrure (12) et/ou d'un boîtier de serrure dans la serrure de véhicule automobile (1).
EP19766168.9A 2018-09-27 2019-08-30 Serrure de véhicule automobile Active EP3857010B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018123895.9A DE102018123895A1 (de) 2018-09-27 2018-09-27 Kraftfahrzeugschloss
PCT/DE2019/100785 WO2020064048A1 (fr) 2018-09-27 2019-08-30 Serrure de véhicule automobile

Publications (2)

Publication Number Publication Date
EP3857010A1 EP3857010A1 (fr) 2021-08-04
EP3857010B1 true EP3857010B1 (fr) 2024-03-06

Family

ID=67928583

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19766168.9A Active EP3857010B1 (fr) 2018-09-27 2019-08-30 Serrure de véhicule automobile

Country Status (3)

Country Link
EP (1) EP3857010B1 (fr)
DE (1) DE102018123895A1 (fr)
WO (1) WO2020064048A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007003948A1 (de) * 2006-11-22 2008-05-29 Kiekert Ag Schlosseinheit mit mehrteiliger Sperrklinke
DE102008028256A1 (de) * 2008-06-13 2009-12-24 Kiekert Ag Schließvorrichtung mit zwei Sperrklinken und motorisch angetriebenen Stellantrieb
DE102014115490A1 (de) * 2014-10-24 2016-04-28 Kiekert Ag Kraftfahrzeugschloss mit Bremsklinke und Mitnehmermechanik
US10745947B2 (en) * 2015-08-21 2020-08-18 Magna Closures Inc. Automotive latch including bearing to facilitate release effort

Also Published As

Publication number Publication date
WO2020064048A1 (fr) 2020-04-02
EP3857010A1 (fr) 2021-08-04
DE102018123895A1 (de) 2020-04-02

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