EP3812539A1 - Serrure de véhicule automobile - Google Patents

Serrure de véhicule automobile Download PDF

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Publication number
EP3812539A1
EP3812539A1 EP20201442.9A EP20201442A EP3812539A1 EP 3812539 A1 EP3812539 A1 EP 3812539A1 EP 20201442 A EP20201442 A EP 20201442A EP 3812539 A1 EP3812539 A1 EP 3812539A1
Authority
EP
European Patent Office
Prior art keywords
pawl
guide means
motor vehicle
locking
guide
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.)
Withdrawn
Application number
EP20201442.9A
Other languages
German (de)
English (en)
Inventor
Holge Schiffer
Michael Scholz
Ömer INAN
Thomas SCHÖNENBERG
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 EP3812539A1 publication Critical patent/EP3812539A1/fr
Withdrawn legal-status Critical Current

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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
    • E05B77/36—Noise prevention; Anti-rattling means
    • 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 motor vehicle lock having a ratchet with a rotary latch and at least one pawl, the rotary latch being latchable in at least one latching position by means of the pawl, and a separate, rotatable latching element arranged in an engagement area between the rotary latch and the pawl, the latching element being locked by means of a guide means can be guided between the rotary latch and the pawl.
  • Motor vehicle locks are used in motor vehicles where pivotable, displaceable or otherwise movably arranged components on the motor vehicle have to be fixed. Particularly with regard to the side doors and / or a tailgate, high demands are made on the ease of use. It is therefore always an endeavor of the developers of motor vehicle locks and the automotive industry to increase the convenience in operating the motor vehicle locks.
  • the motor vehicle lock and in particular the locking mechanism arranged in the motor vehicle lock, interacts when it is closed with a lock holder which is usually fastened to the motor vehicle body.
  • the locking mechanism consisting of the rotary latch and pawl is moved into a locking position by means of the lock holder. This latching position then makes it possible to position and hold the movable component securely while the motor vehicle is in use.
  • the locking position is achieved by the engagement of the pawl 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 that is, the rotary latch and the pawl, causes closing and opening noises, which significantly influence the comfort behavior of the motor vehicle lock.
  • a motor vehicle lock has become known in which a locking element in the form of a ball or a cylinder is arranged in the engagement area between the rotary latch and the pawl to achieve favorable haptics and acoustics of the motor vehicle lock.
  • the document discloses a guide cage, the guide cage being arranged either on the pawl or on the rotary latch.
  • the object of the invention is to provide an improved motor vehicle lock. It is a particular object of the invention to provide a structurally favorable and at the same time safe means for guiding the latching element, while at the same time making it possible to safely unlock the locking mechanism.
  • a motor vehicle lock having a locking mechanism a rotary latch and at least one pawl, wherein the rotary latch can be locked in at least one latching position by means of the pawl and a separate, rotatable latching element arranged in an engagement area between the rotary latch and the pawl, wherein the latching element can be guided between the rotary latch and the pawl by means of a guide means, wherein the locking element can be guided by means of a guide means that is independent of the locking mechanism.
  • the structure of the motor vehicle lock according to the invention now makes it possible to provide a favorable option for guiding the latching element in a motor vehicle lock and in particular in a locking mechanism.
  • the locking element can be guided cheaply and safely by the guide means that is independent of the locking mechanism.
  • the guide means makes it possible to hold the locking element in its position in the engagement area and to guide it during the unlocking or during the locking of the locking mechanism.
  • the latching element is preferably designed as a ball, so that an engagement surface that can be described as point contact on the contact surface of the rotary latch and the pawl can be achieved. It is also conceivable, however, that by means of the guide means a cylindrical latching element can be guided in the engagement area between the rotary latch and the pawl, wherein a line contact can be formed or achieved on the contact surfaces of the locking parts.
  • the latching element is preferably held by means of the guide means, that is to say a ball or cylinder guide, in the area of engagement between the pawl and the rotary latch.
  • a motor vehicle lock includes motor vehicle locks that are used, for example, in side doors, sliding doors, flaps, hoods and / or covers, precisely where pivotally or displaceably mounted components are arranged on the motor vehicle. It is also conceivable to arrange the motor vehicle lock in a backrest of a seat.
  • the motor vehicle lock has a locking mechanism that has a rotary latch and at least one pawl.
  • at least one pawl is arranged in one plane with the rotary latch and is able to lock the rotary latch in one position in conjunction with the latching element and a lock holder.
  • an inlet mouth of the rotary latch points in the direction of a lock holder, with the rotary latch pivoting as a result of a relative movement between the lock holder and rotary latch.
  • the pawl is usually pretensioned in the direction of the rotary latch, so that the pawl and in particular the latching element come into engagement with the rotary latch when a latching position is reached.
  • a pre-locking position and a main locking position of the locking mechanism can be assumed.
  • the locking system or motor vehicle lock can furthermore have a lock housing in which the locking mechanism, a locking unit, an actuating unit, an electric drive and / or gear parts can be arranged.
  • a lock housing in which the locking mechanism, a locking unit, an actuating unit, an electric drive and / or gear 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, penetrating moisture and / or contamination.
  • the lock housing components are connected to one another in a sealing manner.
  • the lock case can be designed as a stamped and bent part and encloses the lock housing at least in certain areas and / or on both 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 preferably 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 assembly openings, are provided in the lock plate, preferably as threads in the lock plate.
  • a latching element In the area of engagement between the rotary latch and the pawl, a latching element is arranged which can be produced as a separate component and can be designed to be at least rotatable with respect to the rotary latch and the pawl. Cylindrical locking elements or a spherical design of a locking element are preferably used here.
  • the locking element itself serves to optimize the engagement behavior in relation to the rotary latch, with rolling off when the latching element engages in the rotary latch, so that a low-noise interaction between the latching element as a locking element for the rotary latch in interaction with the rotary latch can be provided .
  • the latching element can be guided precisely and, at the same time, the alignment between the pawl and rotary latch takes place with the smallest possible play tolerances.
  • the solution known from the prior art does not offer any possibility of eliminating the tolerances present in the pivot axes of the locking parts, so that the tolerances in the pivot axes of the locking parts have a negative effect on the interaction of the locking parts and the locking element.
  • the advantageous arrangement of the means for guiding in a fixed attachment in the motor vehicle lock overcomes these disadvantages and provides means which are structurally simple to manufacture and which facilitate the installation of the motor vehicle lock through a separate installation option.
  • an advantage is achieved when the guide means is received in the motor vehicle lock such that it can pivot.
  • a pivotable mounting of the guide means offers the advantage that the guide means can be mounted independently of the locking mechanism in the motor vehicle lock, which enables great structural freedom in the design of the guide means.
  • the guide means can follow the movement of the latching element and also guide the latching element outside the area of engagement with the rotary latch.
  • the latching element is preferably guided by means of the guide means, but rests against the pawl at least in some areas during the locking or unlocking of the locking mechanism. This enables additional security when guiding the locking element, so that the locking element can be precisely positioned and guided by means of the guide means in interaction with the pawl.
  • the pawl serves as a safety-relevant component, since in the event of an accident the pawl absorbs the excessive loads that act on the lock in the event of an accident.
  • the guide means only serves to stabilize the position and guide the locking element from the unlocked position to the locking position and vice versa. As a result of the pivotable mounting, secure guidance of the locking means can be made possible.
  • the guide means surrounds the latching element at least in some areas, in particular on opposite sides, a further variant embodiment of the invention results.
  • a secure guiding of the latching element can be ensured by grasping around the latching element on both sides.
  • a form-fitting grasping around the latching element can represent an advantageous embodiment.
  • the guide means acts on the latching element only at certain points, i.e. offers a minimal guide surface for the latching element in order to achieve the lowest possible friction values when the latching element rolls in the engagement area or during locking or unlocking of the locking mechanism.
  • the guide means can enclose the locking element by 180 ° and more, for example, so that a secure guidance of the locking element is made possible.
  • the guide means can also only guide the locking element in some areas, that is, the guide means only rests against the locking means in some areas, so that on the one hand low coefficients of friction are achieved between the locking element and the guide means and at the same time a secure circumferential guidance of the locking element is ensured.
  • the guide means is designed as a guide lever, a further variant embodiment of the invention results.
  • the formation of the guide means as a guide lever offers the advantage that a pivotable mounting of the lever can easily follow the movement of the latching element.
  • a lever is an inexpensive component that can be easily and securely stored or received in the motor vehicle lock. It can also be advantageous if the guide means is mounted on at least one locking part axis, in particular a ratchet axis.
  • the storage on one of the locking part axles offers the possibility of providing a storage point for the guide means and in particular the guide lever with the least possible structural effort.
  • the movement sequences of the pawl can cooperate with those of the guide means, provided that the latching element rolls normally in the engagement area. If the locking system is properly, that is, locked or unlocked as usual, the latching element comes into engagement with the rotary latch in the area of engagement between the rotary latch and the pawl, whereby a rolling of the latching element is initiated.
  • the guide means serves as a holding element or guide element for the latching element. The latching element can be held securely and in a precisely positioned manner in the engagement area by means of the guide means. If the guide means is now designed as a guide lever and, for example, the guide lever is mounted on the pawl shaft, this can Latching means are safely guided, with a minimal space requirement for the guide means in the motor vehicle lock.
  • the guide lever has a driver, the driver being able to be brought into engagement with a release lever and / or the pawl.
  • the guide means is designed, for example, as a guide lever.
  • the guide means it is also conceivable for the guide means to be designed as a segment of a circle or a circular disk or a pitch circle disk, with a driver being arranged on the guide means. The entrainment enables an additional force to be introduced into the latching element in the event that the latching element is not normally actuated.
  • the release lever preferably engages the locking pawl and moves the locking pawl out of the area of engagement with the rotary latch.
  • This movement preferably a pivoting movement, also moves the latching element.
  • the latching element does not move with it, there will be a relative movement between the pawl and the guide means.
  • the guide means is connected to the latching element in such a way that the guide means remains in the locked position, for example. Due to the extreme situation, the latching means cannot move or is prevented from moving, so that although the pawl is moved, the latching element and the guide means remain in their initial position.
  • the pawl and / or the release lever After a predeterminable relative movement between the guide means and the pawl, the pawl and / or the release lever also come into engagement with the guide means, whereby an additional force can be generated on the guide means.
  • the additional force on the guide means then causes the latching element to be moved out of the engagement area between the rotary latch and the pawl.
  • the entrainment can for example be designed as an additional extension on the guide means and form a separate arm of the guide lever.
  • the guide means can be referred to as a guide lever and overall as fork-shaped. The fork shape or the complaint about the extension of the pawl then makes it possible for the pawl to allow a relative movement between the guide means and the pawl, at least in some areas.
  • the pawl has a driving contour for the guide means, in particular the guide lever.
  • a driving contour on the pawl can also be brought into engagement with the guide means.
  • the guide means is mounted, for example, as a guide lever on a pivot axis of the pawl and guides the guide means in the area of engagement.
  • the guide means or the guide lever can encompass the pawl at least in some areas, so that an advantageous two-sided guidance of the guide means is possible.
  • the lock is deformed due to overloading of the lock and the release lever is not immediately able to move the locking element out of the engagement area between the rotary latch and the pawl, a relative movement occurs between the guide means or guide lever and the pawl, whereby the guide lever comes into contact with the driving contour.
  • the entrainment contour then serves as a fixed stop for the guide lever and can introduce an additional force into the guide lever. Due to the additional force that can be introduced onto the locking element by the guide lever, the locking element can also be moved out of the engagement area in extreme situations.
  • the guide means is preferably designed as a steel component or composite component made of steel and plastic.
  • the guide means can, for example, be made from sheet steel and encompass the latching element in a form-fitting manner. It is also conceivable, however, that the guide means is only made of steel in some areas and has a plastic casing. At least in the area a steel guide can be advantageous for the guidance of the locking element, since a stabilization of the locking element can be achieved here.
  • a driver formed on the guide means can also advantageously be made of steel or belong to the steel core of the guide means, since greater forces can be transmitted as a result.
  • a plastic casing or a regional design of the guide means as a composite component can be advantageous, for example, in order to achieve low-noise mounting of the guide means and / or to provide surface protection for the guide means.
  • FIG. 1 is a schematic representation of a side view of a motor vehicle lock 1 reproduced. Shown is a locking mechanism 2 consisting of a rotary latch 3 and a locking pawl 4. A locking element 6 is arranged in an engagement area 5 between the rotating latch 3 and locking pawl 4, the locking element 6 being guided by means of a guide means 7 in the engagement area or in relation to the locking mechanism 2 is.
  • the rotary latch 3, the pawl 4 and the guide means 7 are each received in the motor vehicle lock 1 so as to be pivotable about an axis 8, 9, 10.
  • a latching position of the locking mechanism 2 the rotary latch 3 being spring-preloaded in the direction of arrow P and / or being preloaded by means of a door or flap seal.
  • the arrow P describes the opening direction of the rotary latch 3, through which the rotary latch 3 can release a lock holder.
  • the rotary latch 3 is prevented from moving in the direction of the arrow P by means of the pawl 4 and in particular by means of the latching element 6. In this locking position, the locking pawl 4 and the locking element 6 take over the locking effect or the locking force which is introduced by the rotary latch 3 on the locking element or the locking pawl 4.
  • a force is now preferably applied by means of a release lever 11 in the direction of the arrow P1
  • the pawl pivots about the pivot axis 8 in the direction of the arrow P2, which initializes a rolling movement of the latching element 6 in the engagement area 5.
  • the rotary latch 3 disengages from the locking element 6, so that the locking mechanism 2 is unlocked.
  • This unlocking can be initialized, for example, by means of an actuation chain such as external actuation lever, Bowden cable, external actuation lever and release lever.
  • the guide means 7 guides the locking element 6 by means of a guide lever 12.
  • the guide lever 12 rests against a spherical locking element 6 by means of an opening 13, so that a secure lateral guidance of the locking element 6 can be achieved.
  • the latching element 6 is preferably guided on both sides by means of the guide lever 12.
  • the locking element 6 does not roll off as usual in the engagement area 5, the pawl 4 is indeed moved in the direction of the arrow P2, but the locking element 6 remains in the engagement area 5 the rotary latch 3.
  • the starting position shown is moved into a relative position R.
  • the relative position of the pawl 4 is in the Figure 1 shown as a dashed line. In this relative position R, the pawl 4 engages with a driver 14.
  • the driver 14 is molded onto the guide means 7 as an extension and has a stop 15 which interacts with the pawl 4.
  • the locking means 6 Due to the interaction between the pawl 4 and driver 14, the locking means 6 is additionally acted upon with a force via the guide lever 12, so that the locking means 6 is forcibly guided out of the engagement area 5 between the rotary latch 3 and the locking pawl 4.
  • secure unlocking of the locking mechanism 2 is guaranteed even in extreme situations and opening of the motor vehicle lock 1 or a door or flap is possible.
  • a guide means 16 is also shown in a side view of a locking mechanism 2.
  • the guide means 16 is here again designed as a guide lever 17, the guide lever 17 being received so as to be pivotable about the axis 8 of the pawl 18.
  • the pawl 18 has an entrainment contour 19 which engages with the guide lever 17 when there is a relative movement between the guide lever 17 and the pawl 18. If, due to extreme situations, for example, the latching element 20 does not move out of the engagement area 21, the guide lever 17 is carried along by means of the entrainment contour 19 and an additional force is applied initiated for moving or rolling the locking element 20 into the locking element 20.
  • the pawl 18 is in the Figure 2 reproduced in a detent position A.
  • the locking position can be, for example, a main locking position of the locking mechanism 2 and can be described as the starting position A from the locked position. If the latching element 2 does not move with an opening movement of the pawl 18, the pawl 18 moves into the relative position R and the entrainment contour 19 engages with the guide lever 17. By means of the entrainment contour 19, a force F is then applied to the guide lever 17 exercised, which initializes or ultimately forces a movement of the latching element 20 out of the engagement area 21. A safe movement of the latching element 20 can thus be guaranteed with certainty in all situations.
  • FIG. 3 is a section along the line III-III from FIG Figure 3 also reproduced as a schematic diagram.
  • the engagement area 21 and the position of the latching element 20 between the pawl 18 and the rotary latch 3 are shown.
  • the guide lever 17 or the guide means 16 encompasses the latching element 20 on both sides and in a form-fitting manner. Reliable guidance of the latching element 20 can thus be ensured.
  • a contact contour is formed on the pawl 18, so that safe guidance and retention in the engagement area 21 and 5 can be ensured.
  • a safe unlocking of the locking mechanism can be ensured by means of the guide means constructed according to the invention.
EP20201442.9A 2019-10-21 2020-10-13 Serrure de véhicule automobile Withdrawn EP3812539A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019128298.5A DE102019128298A1 (de) 2019-10-21 2019-10-21 Kraftfahrzeugschloss

Publications (1)

Publication Number Publication Date
EP3812539A1 true EP3812539A1 (fr) 2021-04-28

Family

ID=73029794

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20201442.9A Withdrawn EP3812539A1 (fr) 2019-10-21 2020-10-13 Serrure de véhicule automobile

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EP (1) EP3812539A1 (fr)
DE (1) DE102019128298A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472651A1 (fr) * 1979-12-28 1981-07-03 Cerdan Jacques Perfectionnement aux serrures de portiere pour vehicules automobiles
DE102007024564A1 (de) * 2007-05-25 2008-11-27 Kiekert Ag Kraftfahrzeugschließsystem mit Gleitelement
DE102016215336A1 (de) 2015-08-21 2017-03-30 Magna Closures Inc. Fahrzeugverriegelung mit lager zum erleichtern des löseaufwands
US20190242163A1 (en) * 2018-02-08 2019-08-08 Magna Closures Inc. Closure latch assembly with latch mechanism having roller pawl assembly
WO2019242816A1 (fr) * 2018-06-22 2019-12-26 Kiekert Ag Serrure de véhicule à moteur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2472651A1 (fr) * 1979-12-28 1981-07-03 Cerdan Jacques Perfectionnement aux serrures de portiere pour vehicules automobiles
DE102007024564A1 (de) * 2007-05-25 2008-11-27 Kiekert Ag Kraftfahrzeugschließsystem mit Gleitelement
DE102016215336A1 (de) 2015-08-21 2017-03-30 Magna Closures Inc. Fahrzeugverriegelung mit lager zum erleichtern des löseaufwands
US20190242163A1 (en) * 2018-02-08 2019-08-08 Magna Closures Inc. Closure latch assembly with latch mechanism having roller pawl assembly
WO2019242816A1 (fr) * 2018-06-22 2019-12-26 Kiekert Ag Serrure de véhicule à moteur

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