EP4288629A1 - Verrou de véhicule automobile - Google Patents

Verrou de véhicule automobile

Info

Publication number
EP4288629A1
EP4288629A1 EP22700455.3A EP22700455A EP4288629A1 EP 4288629 A1 EP4288629 A1 EP 4288629A1 EP 22700455 A EP22700455 A EP 22700455A EP 4288629 A1 EP4288629 A1 EP 4288629A1
Authority
EP
European Patent Office
Prior art keywords
lever
motor vehicle
vehicle lock
actuating lever
locking 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.)
Pending
Application number
EP22700455.3A
Other languages
German (de)
English (en)
Inventor
Ömer INAN
Peter Szegeny
Thorsten Bendel
Michael Scholz
Holger Schiffer
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 EP4288629A1 publication Critical patent/EP4288629A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
    • E05B77/12—Automatic locking or unlocking at the moment of collision
    • 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

Definitions

  • the invention relates to a motor vehicle lock, in particular a motor vehicle door lock, with a locking mechanism consisting essentially of a rotary latch and a pawl, and with an actuating lever chain for the locking mechanism, the actuating lever chain having at least one actuating lever, a coupling element and a release lever on the locking mechanism side, and with an additional Mass inertia element is provided for acting on the coupling element at least in the event of a crash.
  • the actuating lever chain is usually used to mechanically open the locking mechanism.
  • the operating lever is manually operated. If the coupling element is engaged or inserted and consequently the actuating lever chain is mechanically closed, the actuating lever via the engaged coupling element finally ensures that the pawl can be lifted from its engagement with the rotary latch with the aid of the release lever. This opens the lock.
  • said motor vehicle lock or motor vehicle door lock is usually arranged inside such a motor vehicle door and interacts with a locking bolt on the body. When the locking mechanism is open, the rotary latch releases the locking bolt so that the motor vehicle door can be opened.
  • the aforementioned actuating lever chain can be used alone to open the locking mechanism.
  • the mass inertia element typically ensures that the clutch element is transferred from its engaged or engaged state to the disengaged or disengaged state. This interrupts the operating lever chain so that the locking mechanism cannot be opened unintentionally.
  • This also applies to the associated motor vehicle door, so that the safety devices usually provided at this point, such as side airbags, seat belt tensioners, etc., have their can develop full effect in the event of a crash to protect the occupants of the motor vehicle in question.
  • a motor vehicle lock in which the release lever can be coupled to the actuating lever with the aid of the coupling element.
  • a means for controlling the clutch lever is also implemented.
  • a control lever interacts with a mass inertia lever and is guided in a control contour of the mass inertia lever. In this way, a defined control of the clutch behavior can be provided.
  • the overall design is such that when the actuating lever is actuated at a normal speed, the control lever follows the movement of the actuating lever. As a result, the coupling element remains engaged and can work on the release lever to open the locking mechanism. However, if the actuating lever is acted upon at an excessive speed, for example in the event of a crash, this means that the mass inertia element in the known teaching cannot follow the movement of the actuating lever. As a result of this, the clutch element disengages from the release lever or is disengaged. The operating lever chain is interrupted as requested.
  • motor vehicles are increasingly equipped with an electric motor drive for motorized opening of the locking mechanism.
  • the actuating lever chain is then either used to transmit the opening movements of the electric motor drive or is primarily implemented in the event that the electric motor drive fails and the associated motor vehicle door is to be opened mechanically.
  • the problem here is that motor vehicles are often locked while driving.
  • the locked state In the locked state of the associated motor vehicle lock, however, a mechanical opening as well as such with the help of the electric motor drive is not possible. This is because the locked state usually corresponds to the coupling element assuming its disengaged or disengaged position. This applies at least to an external lever chain, i.e. an actuating lever chain that is acted upon from the outside, for example with an outside door handle.
  • an external lever chain i.e. an actuating lever chain that is acted upon from the outside, for example with an outside door handle.
  • the invention is based on the technical problem of further developing such a motor vehicle lock and in particular a motor vehicle door lock in such a way that the motor vehicle door can still be unlocked or opened even when the motor vehicle is locked and the power supply has failed, particularly in the event of a crash.
  • the invention proposes in a generic motor vehicle lock that the coupling element is designed for normal operation and is only directly or indirectly engaged in the event of a crash using the mass inertia element.
  • the invention is based on the finding that the actuating lever chain is not required in normal operation because normal operation corresponds to the locking mechanism being opened with the aid of an additional electric motor drive.
  • the actuating lever chain is mainly used in the event of a crash. Therefore, the actuating lever chain can be interrupted in normal operation and such a design is also recommended so that there are no undesirable interactions between the one hand, the electric motor drive for opening the locking mechanism and on the other hand come the release lever as part of the operating lever chain.
  • the coupling element Only in the event of a crash and with the associated and corresponding accelerations is the coupling element engaged, specifically with the aid of the mass inertia element.
  • the mass inertia element can act on the coupling element immediately and directly. According to the invention, however, the coupling element is regularly inserted indirectly with the aid of the mass inertia element. That is, the mass inertia element allows the clutch element to move into the engaged state.
  • the invention is based on the further knowledge that in such a crash, the power supply is generally interrupted, so that the electric motor drive to open the locking mechanism can not (or no longer) be used.
  • the actuating lever chain is closed mechanically. This makes it possible, in particular, to be able to open the relevant motor vehicle door from the outside, for example by rescue personnel arriving.
  • the actuating lever chain represents a kind of “back-up solution” for the event of a crash, and according to the invention is only effective at all in such a case of a crash.
  • the coupling element is designed in at least two parts with a coupling lever and a transmission lever.
  • the clutch lever can be transferred from a disengaged to an engaged position with the aid of the transmission lever.
  • the clutch lever is in its disengaged position during normal operation. Consequently, only in the event of a crash does the transmission lever ensure that the clutch lever is transferred from its disengaged position, which it assumes during normal operation, to the engaged position.
  • the actuating lever chain is mechanically closed, so that the pawl can be lifted from its engagement with the rotary latch via the actuating lever, the coupling element or the engaged clutch lever and finally the release lever. A locking bolt previously caught with the help of the rotary latch is released.
  • the clutch lever is advantageously mounted on the release lever, usually in a rotatable manner.
  • the release lever is mounted coaxially with the actuating lever.
  • the procedure is usually such that the clutch lever mechanically connects the actuating lever and the release lever to one another in the engaged position.
  • the clutch lever In the disengaged position, the clutch lever mechanically separates the actuation lever and release lever.
  • Normal operation corresponds to this.
  • the change of the clutch lever from the predominantly assumed disengaged position to the engaged position can now be effected and brought about simply by pivoting the clutch lever, which is rotatably mounted on the release lever.
  • the pivoting movement of the clutch lever from its disengaged to the engaged position now corresponds to the fact that the clutch lever generally moves against a stop on the actuating lever.
  • the actuating lever is mechanically connected to the clutch lever, which in turn ultimately produces the desired mechanical connection to the pawl via the release lever due to its rotatable mounting on the release lever.
  • the procedure is such that the transmission lever is pretensioned with the aid of a spring in contact with the mass inertia element.
  • the spring thus ensures that the transmission lever is prestressed in the direction of the mass inertia element.
  • two contact surfaces are on the transmission lever on the one hand and on the inertia element on the other hand in normal operation. Due to the mutual contact of the two contact surfaces, the mass inertia element is held in its associated non-deflected position during normal operation by friction of the contact surfaces. The friction of the contact surfaces against one another can be varied by working with roughened or smoothed contact surfaces.
  • the mass inertia element in such a crash and in the deflected position associated therewith ensures that the transmission lever is released. Because now the contact surface on the mass inertia element moves away from the corresponding contact surface on the transmission lever as a result of its deflection. Since the transmission lever is spring-loaded, it is usually pivoted. The pivoting of the transmission lever in the event of a crash ensures that the transmission lever engages the clutch lever.
  • the mass inertia element is advantageously designed as a pendulum element.
  • the pendulum element can usually be pivoted about a pivot point or an axis of rotation.
  • the pendulum element is regularly rotatably mounted in a housing of the motor vehicle lock.
  • the pendulum plane swept over by the pendulum element during its deflection can typically coincide with a transverse plane of the motor vehicle, ie the X-Y plane.
  • the X-direction regularly corresponds to the longitudinal direction of the motor vehicle, whereas the transverse direction of the motor vehicle is identified with the Y-direction.
  • the pendulum element or mass inertia element is not influenced by any accelerations in the vertical axis direction or Z-direction.
  • the specially designed coupling element can be part of the actuating lever chain, which in turn can be used to open the locking mechanism in the event of a crash.
  • the actuating lever chain can also be combined with an additional locking lever chain.
  • the actuating lever chain is typically added to an electric motor drive for opening the locking mechanism as a redundancy solution.
  • the present invention has a particularly simple and compact design and the actuating lever chain or external actuating lever chain can be implemented in practice in addition to and as a supplement to the electric motor drive.
  • the simple and functional fair triggering in the event of a crash the main advantages can be seen here.
  • FIG. 1 is a schematic representation of the motor vehicle lock according to the invention in the form of a motor vehicle door lock:
  • FIG. 1 shows a motor vehicle lock which is designed as a motor vehicle door lock and is reproduced reduced to its essential elements.
  • a locking mechanism 1 , 2 with a rotary latch 1 and a pawl 2 is actually provided at this point.
  • the rotary latch 1 ensures that a locking bolt 3 is caught with its help.
  • a motor vehicle door (not shown) that accommodates the motor vehicle lock inside is closed relative to a motor vehicle body with the locking bolt 3 attached thereto.
  • a motor drive 4 is usually provided.
  • the motor drive 4 is only indicated in FIG. 1 by an arrow.
  • the motorized drive 4 acts on the pawl 2 in such a way that the pawl 2 is pivoted counterclockwise about its axis 5 .
  • the pawl 2 in the closed state shown in FIG. 1 releases the rotary latch 1 previously in latching engagement with the pawl 2 .
  • the rotary latch 1 can then open with spring support in the counterclockwise direction indicated in FIG. 1 and the locking bolt 3 can leave an inlet opening of the rotary latch 1 .
  • the motor vehicle door can be opened.
  • an actuating lever chain 6, 7, 8, 9 is then also implemented.
  • the actuating lever chain 6, 7, 8, 9 is composed of an actuating lever 6, a coupling element 7, 8 and a release lever 9 on the locking mechanism side.
  • a mass inertia element 10 is also provided for acting on the coupling element 7, 8, at least in the event of a crash.
  • the actuating lever 6 is, not restrictively, an external actuating lever 6. Consequently, the actuating lever chain 6, 7, 8, 9 is designed, not restrictively, as an external actuating lever chain.
  • the actuating lever chain 6, 7, 8, 9 is designed, not restrictively, as an external actuating lever chain.
  • applying pressure to the actuating lever or external actuating lever 6 with the aid of an external door handle 11 indicated as an arrow causes the actuating lever 6 to perform a clockwise movement.
  • This clockwise movement of the actuating lever or external actuating lever 6 is transmitted via the inserted or engaged clutch element 7, 8 to the release lever 9, which also pivots clockwise and thereby rotates the pawl 2 counterclockwise about its axis 5, as indicated by corresponding arrows in Fig 1 and 2 is indicated.
  • the actuating lever chain 6, 7, 8, 9 is able to mechanically redundantly open the locking mechanism 1, 2 via the outside door handle 11.
  • the design is such that the coupling element 7, 8 is designed or disengaged during normal operation.
  • the position of the coupling element 7, 8 in FIG. 1 corresponds to this. Only in the event of a crash is the coupling element 7, 8 inserted with the aid of the mass inertia element 10, specifically indirectly. This includes the position of the coupling element 7, 8 and the mass inertia element 10 as shown in FIG.
  • the coupling element 7 , 8 is designed in at least two parts with a coupling lever 7 and a transmission lever 8 .
  • the clutch lever 7 is rotatably mounted on the release lever 9 .
  • the release lever 9 itself is disk-like, with the clutch lever 7 being rotatably mounted on the outer circumference of the disk-like release lever 9 on the latter.
  • the transmission lever 8 is also rotatable stored, within a merely indicated housing 13 for receiving the motor vehicle lock. For this purpose, an axis of rotation 14 is provided.
  • the clutch lever 7 can now be transferred from a disengaged to an engaged position (and possibly back) with the aid of the transmission lever 8 .
  • Shown in FIG. 1 is the disengaged position of the clutch lever 7, which is assumed consistently and during normal operation. If the locking mechanism 1, 2 is to be opened in such a case, the electric motor drive 4 is acted upon and ensures that the pawl 2 is rotated about its axis 5 counterclockwise as described.
  • the release lever 9 and the actuating lever or external actuating lever 6 are mounted coaxially in relation to the common axis or axis of rotation 12 .
  • the clutch lever 7 in its engaged position according to FIG. 2 ensures that the actuating lever 6 and the release lever 9 are mechanically connected to one another.
  • the clutch lever 7 moves against a stop edge 6a of the actuating lever 6. If the clutch lever 7 assumes its disengaged position according to FIG. 1, the actuating lever 6 and the release lever 9 are mechanically separated from one another.
  • the transmission lever 8 is in turn preloaded with the aid of a spring 15 in contact with the mass inertia element 10 .
  • the spring 15 ensures that the transmission lever 8 is pivoted counterclockwise with respect to its axis or axis of rotation 14 without being in contact with the mass inertia element 10 .
  • This is prevented in normal operation in that the transmission lever 8 rests with a contact surface 8a on a corresponding contact surface 10a of the mass inertia element 10 .
  • the friction observed at this point between the two contact surfaces 8a and 10a ensures that the mass inertia element 10 is held in its non-deflected position shown in FIG.
  • the mass inertia element 10 is deflected.
  • the mass inertia element 10 is after the Embodiment around a pendulum element 10.
  • the mass inertia element or pendulum element 10 is mounted rotatably about an axis in the housing 13 for this purpose.
  • the pendulum element 10 may be equipped with an approximately central bearing ball 10b, which engages in a cup-shaped bearing shell 16 and thereby ensures the central bearing and the shape of the axis.
  • An inertial mass 10c is provided at the end of the mass inertia element or pendulum element 10 .
  • the pendulum element 10 pivots about its axis, as indicated by corresponding arrows in FIG. As a result, the head-side contact surface 10a on the pendulum element 10 leaves the opposite contact surface 8a of the transmission lever 8. As a result, the transmission lever 8 is released from the contact surface 10a on the pendulum element 10.
  • the release lever 9 moves with a release edge 9a against the pawl 2 and ensures that the pawl 2 is pivoted about its axis 5 counterclockwise.
  • the consequence of this is that the pawl 2 is lifted from its latching engagement with the catch 1 .
  • the rotary latch 1 opens with the help of a spring, so that the previously caught locking bolt 3 is released.
  • This also applies to the motor vehicle lock that is not expressly shown and accommodates the motor vehicle lock in its interior.

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

L'invention se rapporte à un verrou de véhicule automobile, en particulier un verrou de portière de véhicule automobile, qui est équipé d'un mécanisme de verrouillage (1, 2) constitué essentiellement d'un loquet rotatif (1) et d'un cliquet (2). En outre, l'invention concerne une chaîne de levier d'actionnement (6, 7, 8, 9) destinée au mécanisme de verrouillage (1, 2). La chaîne de levier d'actionnement (6, 7, 8, 9) comprend au moins un levier d'actionnement (6), un élément d'accouplement (7, 8) et un levier de déclenchement (9) côté mécanisme de verrouillage. En outre, un élément d'inertie (10) est également disposé pour agir sur l'élément d'accouplement (7, 8) au moins en cas de collision. Selon l'invention, l'élément d'accouplement (7, 8) est dégagé en fonctionnement normal et n'est enclenché qu'en cas de collision au moyen de l'élément d'inertie (10).
EP22700455.3A 2021-02-04 2022-01-13 Verrou de véhicule automobile Pending EP4288629A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021102595.8A DE102021102595A1 (de) 2021-02-04 2021-02-04 Kraftfahrzeug-Schloss
PCT/DE2022/100024 WO2022167030A1 (fr) 2021-02-04 2022-01-13 Verrou de véhicule automobile

Publications (1)

Publication Number Publication Date
EP4288629A1 true EP4288629A1 (fr) 2023-12-13

Family

ID=80113390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22700455.3A Pending EP4288629A1 (fr) 2021-02-04 2022-01-13 Verrou de véhicule automobile

Country Status (5)

Country Link
US (1) US20240084624A1 (fr)
EP (1) EP4288629A1 (fr)
CN (1) CN116848310A (fr)
DE (1) DE102021102595A1 (fr)
WO (1) WO2022167030A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022113051A1 (de) 2022-05-24 2023-11-30 Kiekert Aktiengesellschaft Kraftfahrzeug-Schloss, insbesondere Kraftfahrzeug-Türschloss

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1816942A1 (de) * 1968-12-24 1970-07-02 Heinz Ott Vorrichtung zum automatischen Entriegeln von Fahrzeugtueren
JPS6020776Y2 (ja) * 1981-09-17 1985-06-21 株式会社大井製作所 自動車用ドアロック装置
JPH04137184U (ja) * 1991-06-13 1992-12-21 富士重工業株式会社 自動車用ドアインナロツク構造
JP3627286B2 (ja) * 1995-05-01 2005-03-09 アイシン精機株式会社 ドアロック解除装置
DE102011100090A1 (de) 2011-04-29 2012-10-31 Kiekert Ag Kraftfahrzeugtürverschluss
DE102017102549A1 (de) 2017-02-09 2018-08-09 Kiekert Ag Kraftfahrzeugschloss
KR20200101073A (ko) * 2019-02-19 2020-08-27 현대자동차주식회사 차량용 전동식 도어 래치

Also Published As

Publication number Publication date
DE102021102595A1 (de) 2022-08-04
CN116848310A (zh) 2023-10-03
WO2022167030A1 (fr) 2022-08-11
US20240084624A1 (en) 2024-03-14

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