EP3807481A1 - Serrure de portière de véhicule automobile - Google Patents

Serrure de portière de véhicule automobile

Info

Publication number
EP3807481A1
EP3807481A1 EP19736963.0A EP19736963A EP3807481A1 EP 3807481 A1 EP3807481 A1 EP 3807481A1 EP 19736963 A EP19736963 A EP 19736963A EP 3807481 A1 EP3807481 A1 EP 3807481A1
Authority
EP
European Patent Office
Prior art keywords
lock holder
vehicle door
rotary latch
locking mechanism
motor vehicle
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
EP19736963.0A
Other languages
German (de)
English (en)
Other versions
EP3807481B1 (fr
Inventor
Stephan MEUTERS
Jianfeng Wang
Chao He
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 EP3807481A1 publication Critical patent/EP3807481A1/fr
Application granted granted Critical
Publication of EP3807481B1 publication Critical patent/EP3807481B1/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
    • E05B77/00—Vehicle locks characterised by special functions or purposes
    • E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
    • E05B77/04—Preventing unwanted lock actuation, e.g. unlatching, at the moment of collision
    • E05B77/06—Preventing unwanted lock actuation, e.g. unlatching, at the moment of collision by means of inertial forces
    • 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
    • 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
    • E05B77/38—Cushion elements, elastic guiding elements or holding elements, e.g. for cushioning or damping the impact of the bolt against the striker during closing of the wing
    • 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
    • E05B85/243—Bolts rotating about an axis with a bifurcated 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 motor vehicle door lock, with a locking mechanism consisting essentially of a rotary latch and pawl, and with a lock holder interacting with the locking mechanism, which moves into the locking mechanism in the closing direction in order to reach the closed position and rests against a load arm of the rotary latch in the closed position of the locking mechanism ,
  • a motor vehicle door lock of the construction described in the introduction is presented in DE 101 31 978 A1, for example.
  • a specially designed load arm is realized, which has a plastic deformation at a heightened load-promoting window-shaped opening.
  • the state of the art according to DE 10 2004 021 516 A1 which also forms a category, deals with a locking device in a vehicle, which can be used as an example for a vehicle seat.
  • a rotary latch is implemented that is equipped with a soft body.
  • the soft body can be deformed by the action of a counter element or lock holder.
  • the deformation of the soft body takes place in particular in the event of a crash, an associated partial displacement of the soft body corresponding to the counter element or the lock holder coming into contact with the load arm. In this way, a smaller opening moment or a closing moment is exerted on the catch as a whole.
  • DE 10 2007 045 224 A1 is concerned with a vehicle door lock with a rotary latch which engages in a locking bolt when a vehicle door is closed.
  • the rotary trap is equipped with a plastic jacket.
  • the rotary latch partially has a wear-resistant insert that is introduced into or brought onto the plastic casing at a contact area with the locking bolt. This is intended to counteract a high load on the plastic casing.
  • the invention is based on the technical problem of further developing such a motor vehicle door lock in such a way that, with unchanged security and in particular the avoidance of random locking openings, increased requirements for cost and installation space optimization are nevertheless met and at the same time a favorable weight variant is propagated.
  • a generic motor vehicle door lock is characterized in the context of the invention in that the load arm of the catch is equipped with a force deflection contour for the lock holder.
  • the force deflection contour is designed in such a way that it changes a direction of force acting on the load arm from the lock holder, at least when the lock holder is acted upon excessively.
  • Such excessive loading is generally observed in the event of a crash, for example in the event of a side impact, and corresponds to the fact that considerable opening forces act on the motor vehicle door lock.
  • the interaction of the lock holder with the force deflection contour on the load arm of the rotary latch ensures that the force acting on the load arm by the lock holder and in particular the direction of force changes in particular.
  • the force deflection contour on the load arm of the rotary latch ensures that the force direction changes, which interacts with the lock holder at least in the event of an excessive load on the lock holder.
  • the force deflection contour is equipped with a projection.
  • the projection interacts with the lock holder when the lock holder is moved in the opening direction of the rotary latch.
  • the described movement of the lock holder in the opening direction of the rotary latch typically takes place in the event of an excessive loading of the lock holder in the event of a crash.
  • the projection as part of the force deflection contour when the lock holder is in contact changes its force vector acting on the catch, i.e. the force vector of the lock holder with which it acts on the catch.
  • the change in the force vector of the lock holder generally takes place in the direction of its closing direction or generally in the direction of its direction of movement.
  • the direction of movement ge belongs to the opening or closing direction of the lock holder. That is, as soon as the lock holder is acted upon excessively, the lock holder can interact with the projection of the force deflection contour on the load arm of the rotary latch.
  • the interaction of the lock holder with the projection as a result of the lock holder resting on the projection ensures that the force exerted by the lock holder on the load arm and consequently the catch changes.
  • the change in force is associated with the fact that the force vector acting on the rotary latch from the lock holder changes in its direction.
  • the force vector in this scenario is initially oriented in such a way that in the described closed position of the locking mechanism and when it is in contact with the load arm of the rotary latch, it acts on the rotary latch in its opening direction.
  • the system of the lock holder when it is subjected to excessive pressure at the projection of the force deflection contour now leads to the force vector initially oriented in the opening direction of the catch being changed in the direction of the closing direction or direction of movement of the lock holder by the force exerted by the lock holder on the load arm.
  • the closing direction or direction of movement of the lock holder runs close to an axis of the catch, whereas the original direction of the force vector of the lock holder for opening the catch is oriented at a distance from said axis of the catch, goes with the described change in the force vector of the lock holder at the same time a clear reduction of the torque applied to the rotary latch and with the help of the lock holder from practiced torque.
  • the change in the direction of the force vector of the lock holder corresponds to the fact that the distance of the origin of the force vector or the center of a locking bolt as part of the lock holder typically sets in half or even less compared to the axis of the catch, so that as Consequence of this is at least a halving of the torque.
  • the special force deflection contour formed on the load arm of the catch with the projection ensures that the torque exerted by the lock holder on the catch in the closed position of the locking mechanism in the event of excessive loading of the lock holder in the opening direction of the locking mechanism according to the invention compared to the prior art is at least halved.
  • the described torque halving in the minimum goes hand in hand with the fact that this is brought about purely by geometric measures and neither special procedures for increasing the strength nor additional use of material are required.
  • the costs, like the weight can be set practically the same as in the prior art, and yet increased security is provided.
  • the material used can be reduced and the installation space and the cost involved can also be reduced with the same safety regulations fulfilled. This is where the main advantages can be seen.
  • the projection is designed as a fang.
  • the catch tooth ensures that, when the locking mechanism is in the closed position, in particular excessive loading of the lock holder in the direction of opening the locking mechanism does not result in the rotary latch actually being pivoted in the opening direction. Rather, this process results in the lock holder being moved in the opening direction of the rotary latch and thereby moving against the projection or the catch tooth. A further relative movement of the lock holder or its locking bolt with respect to the load arm is consequently prevented by the catch tooth.
  • the catch tooth and the force deflection contour implemented in this way ensure that the force vector of the lock holder associated with the described and possible opening of the rotary latch experiences the relevant change in direction. This will be explained in more detail with reference to the figure description.
  • the rotary latch is generally equipped with a casing.
  • the design is such that the force redirection contour is embedded in the casing.
  • the sheathing is one which is generally brought onto the otherwise metallic rotary trap by a plastic injection molding process with complete or partial covering of the rotary catch. With the help of the casing, in particular noises of the moving rotary latch are suppressed or damped.
  • the sheathing dampens movements of the lock holder relative to the load arm in normal operation. This also applies to the area of the force deflection contour. So long as the locking mechanism and the lock holder are acted upon in normal operation, the sheathing ensures that the catch in the lock holder entering the locking direction in the closing direction is first transferred from its pre-locking position to the main firing position or main locking position. For this purpose, the locking bolt moves as part of the lock holder against a locking arm, which is opposite the load arm of the rotary latch. In this context, the sheathing ensures that the movement of the lock holder relative to the rotary latch is damped and any noise associated with the locking process is minimized as desired. In the closed position of the locking mechanism, the locking bolt rests on the latch arm or on the load arm or both.
  • the lock holder primarily acts on the load arm in the closed position of the locking mechanism and regularly dodges the sheathing in relation to the lock holder.
  • the pawl In emergency operation and when the locking mechanism is in the closed position, the pawl has generally only fallen into a latching of the rotary latch.
  • this pre-locking position or pre-locking position of the locking mechanism there is a risk of excessive forces acting on the lock holder and directed in the opening direction, that the catch is opened unintentionally or the load arm is deformed in the opening direction.
  • the sheathing of the load arm now evades the lock holder.
  • the lock holder or the locking bolt can interact as part of the lock holder with the force deflection contour, which only comes into engagement with the lock holder or the locking bolt and can come about through the evasion of the casing.
  • the lock holder is generally bow-shaped with the cylindrical locking bolt and is set up to interact with the locking mechanism.
  • the design is typically made such that the force deflection contour on the load arm of the rotary latch only interacts with the lock holder in the closed position of the locking mechanism.
  • the invention is based on the knowledge that the lock holder or its cylindrical locking bolt in the pre-closed position of the locking mechanism is virtually tangential to a stop edge of the load arm of the rotary latch. If there is excessive force application of the lock holder in the opening direction of the lock in the water pre-closing position of the locking mechanism, there is a risk that the lock holder or its locking bolt will pivot the catch in the opening direction or push it out of the pre-locking position. In addition or alternatively, there may also be plastic deformations of the load arm of the catch.
  • Fig. 1 is a motor vehicle door lock according to the prior art
  • Fig. 2 shows the motor vehicle door lock according to the invention partially in a larger representation.
  • a motor vehicle door lock is shown in the figures.
  • This essentially has a locking mechanism 1, 2 made of rotary latch 1 and pawl 2.
  • the rotary latch 1 and the pawl 2 are each stored in a lock case 3.
  • the rotary latch 1 has a rotary latch axis 4
  • the pawl 2 has a pawl axis 5.
  • Both axes 4, 5 are defined by bolts anchored in the lock case 3. It can be seen that the two ratchets 1, 2 and consequently also the associated motor vehicle door locks according to FIGS. 1 and 2 each take their before locking position or locking position. In this pre-locking position or pre-locking position, the respective pawl 2 has fallen into a pre-locking recess 1 a of the rotary latch 1.
  • the rotary latch 1 also has a main catch stop 1 b or a main catch recess.
  • the basic structure also includes a lock holder 6, 7 which interacts with the locking mechanism 1, 2.
  • the lock holder 6, 7 is composed of a U-shaped bracket and a cylindrical locking bolt 7 which extends between the two bracket legs and which is shown in the two FIGS. 1 and 2 is shown in schematic section.
  • the locking bolt 7 or the lock holder 6, 7 interacts overall with the locking mechanism 1, 2.
  • the lock holder 6, 7 may be connected to a motor vehicle body in the exemplary embodiment, whereas the motor vehicle door lock and with it the locking mechanism 1, 2 are located inside a motor vehicle door, not shown. As soon as the motor vehicle door is closed, the lock holder 6, 7 moves into the locking mechanism 1, 2, in each case in the closing direction S indicated by an arrow in FIGS. 1 and 2.
  • the opposite direction to the closing direction 5 denotes the opening direction of the lock holder 6, 7th In de directions define a total movement direction of the lock holder 6, 7th
  • the locking bolt 7 of the lock holder 6, 7 ensures that the catch 1 starts from a dot-dash and open position indicated in FIG. 1 in a counterclockwise direction its rotary latch axis 4 is pivoted.
  • the pawl 2 can fall into the associated Vorrastaus recess 1 a of the rotary latch 1.
  • Flierzu corresponds, for example, a spring-assisted movement of the pawl 2 about its pawl axis 5 also counterclockwise.
  • the lock holder 6, 7 or its locking bolt 7 rests against a load arm 1 c of the rotary latch 1.
  • the catch 1 also has the locking arm 1 d, which interacts with the pawl 2. If there is an excessive loading of the lock holder 6, 7 in the opening direction, for example as a result of a side impact, i.e. contrary to the closing direction S indicated by the arrow, then the locking bolt 7 acts on the load arm 1 c of the catch 1.
  • the force acting on the lock holder 6, 7 in the opening direction acts on the stop edge 8 such that the associated force vector Fi shown in FIG. 1 starts from a center point of the locking bolt 7 perpendicular or normal to the obliquely placed or tangential stop edge 8 on the catch 1 or the load arm 1 c engages.
  • the force vector Fi acting on the rotary latch 1 in this way ensures that a torque is applied to the rotary latch 1 in the opening direction, which torque results from the vector product of the force on the locking bolt 7 or
  • Lock holder 6, 7 and the distance A of the force vector Fi from a distance line parallel through the center of the rotary latch axis 4 is composed. This is indicated in FIG. 1 by the distance A in question.
  • FIG. 2 shows a motor vehicle door lock according to the invention.
  • the load arm 1 c of the rotary latch 1 is equipped with a force deflection contour 9, 10 which can be seen particularly clearly in the enlarged detail representation.
  • the force deflection contour 9, 10 interacts with the lock holder 6, 7, however within the scope of the exemplary embodiment only and only when the lock holder 6, 7 is subjected to excessive loads and also only when the locking mechanism 1, 2 is shown in FIG. 2
  • the pre-locking position or pre-locking position is located.
  • the locking mechanism 1, 2 assumes the anti-lock position or anti-lock position, the cylindrical locking bolt 7 is then added practically over at least half of its circumference by a contour 11 at the end of a fork jaw receiving the locking bolt 7 inside the rotary latch 1 and enclosed.
  • the fork mouth adjusts itself automatically between the load arm 1 c and the latch arm 1 d because both arms 1 c, 1 d are spaced apart.
  • the force deflection contour 9, 10 on the load arm 1 c of the rotary latch 1 is only realized in the motor vehicle door lock according to the invention according to FIG. 2, but not in the motor vehicle door lock according to the prior art, as shown in FIG. 1.
  • the load arm 1 c of the rotary latch 1 equipped in this way with the force deflection contour 9, 10 ensures that a direction of force acting on the load arm 1 c from the lock holder 6, 7 or the force Fi at least when the lock holder 6 is acted upon excessively, 7 changes the direction of force in the opening direction of the locking mechanism 1, 2.
  • the force deflection contour 9, 10 is equipped with a projection 9.
  • the force deflection contour 9, 10 has a leading edge 10, as shown in the enlarged illustration.
  • the projection 9 ensures that the lock holder 6, 7 moved in the opening direction of the rotary latch 1 interacts with the projection 9.
  • the leading edge 10 corresponds to the impact edge 8.
  • the casing 12 ensures that movements of the lock holder 6, 7 and consequently its locking bolt 7 are damped against the load arm 1 c of the rotary latch 1. So long as the conditions for normal operation prevail, during the closing process and the retracting into the fork recess or the fork mouth of the catch 1 lock holder 6, 7, the catch 1 from its open position beyond the pre-locking position shown in FIG. 2 until it is reached the anti-lock position or anti-lock position is pivoted counterclockwise around the rotary latch axis 4 as described.
  • the casing 12 first yields to the lock holder 6, 7 or its locking bolt 7.
  • the locking bolt 7 can consequently penetrate into the casing 12, as is shown in broken lines in FIG. 2.
  • the force vector F-i corresponds to this because the cylindrical locking bolt 7 bears predominantly tangentially against the stop edge 8 and the force vector Fi or a comparable scenario as described with reference to FIG. 1 is thereby established.
  • the projection 9 changes the force vector F1 acting on the catch 1 when the lock holder 6, 7 is in contact Direction of the closing direction S of the lock holder 6, 7. That is, the installation of the locking bolt 7 on the projection 9 results in a change in the direction of force, and consequently the force vector shown in FIG F2.
  • the force vector F2 is oriented in the direction of the closing direction S of the lock holder 6, 7 or opposite thereto or generally in its direction of movement.
  • the projection 9 changes when the lock holder 6, 7 engages its force vector F1 acting on the catch 1 in the direction of the direction of movement of the lock holder 6, 7, which corresponds to the closing direction S and the opposite opening movement of the locking bolt 7.
  • the force vector F1 becomes the force vector F2.
  • the force vector F2 has a reduced distance B compared to a parallel distance line drawn through the rotary latch axis 4.
  • the rotary latch 1 is acted upon with reduced torque, namely a torque reduction by at least a factor of 2.
  • the distance A is more than twice as large as the distance B.

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

L'invention concerne une serrure de portière de véhicule automobile munie d'un dispositif de verrouillage (1, 2) composé principalement d'un pêne pivotant (1) et d'un loquet de fermeture (2). Par ailleurs, l'invention propose un porte-serrure (6, 7) interagissant avec le dispositif de verrouillage (1, 2), lequel rentre dans le dispositif de verrouillage (1, 2) pour atteindre la position fermée et qui repose, lorsque le dispositif de verrouillage (1, 2) est fermé, sur un bras de charge (1c) du pêne pivotant (1). Selon l'invention, le bras de charge (1c) est muni d'un contour de déviation de force (9, 10) pour le porte-serrure (6, 7). Le contour de déviation de force (9, 10) modifie une direction de force agissant depuis le porte-serrure (6, 7) sur le bras de charge (1c) au moins lorsque le porte-serrure (6, 7) est soumis à une contrainte excessive.
EP19736963.0A 2018-06-13 2019-06-06 Serrure de porte de véhicule Active EP3807481B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018114082.7A DE102018114082A1 (de) 2018-06-13 2018-06-13 Kraftfahrzeugtürschloss
PCT/DE2019/100513 WO2019238168A1 (fr) 2018-06-13 2019-06-06 Serrure de portière de véhicule automobile

Publications (2)

Publication Number Publication Date
EP3807481A1 true EP3807481A1 (fr) 2021-04-21
EP3807481B1 EP3807481B1 (fr) 2024-10-02

Family

ID=67211452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19736963.0A Active EP3807481B1 (fr) 2018-06-13 2019-06-06 Serrure de porte de véhicule

Country Status (4)

Country Link
US (1) US11802424B2 (fr)
EP (1) EP3807481B1 (fr)
DE (1) DE102018114082A1 (fr)
WO (1) WO2019238168A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020100146A1 (de) * 2020-01-07 2021-07-08 Kiekert Aktiengesellschaft Kraftfahrzeug-Schloss
CN111852214B (zh) * 2020-07-02 2023-08-01 陕西汽车集团股份有限公司 一种具有应急开启功能的车门锁结构及其使用方法

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DE3605601C1 (de) * 1986-02-21 1987-02-19 Audi Ag Kraftfahrzeugtuerverschluss
AU584509B2 (en) * 1986-12-19 1989-05-25 Kabushikikaisha Anseikogyo Vehicle door latch
US5642636A (en) * 1993-01-22 1997-07-01 Mitsui Kinzoku Kogyo Kabushiki Kaisha Locking device for trunk lids
EP0628682A1 (fr) * 1993-06-14 1994-12-14 General Motors Corporation Serrure de porte de véhicule automobile
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DE10216313A1 (de) * 2002-04-12 2003-10-23 Bayerische Motoren Werke Ag Drehfalle eines Schlosses mit einer Dämpfungsschicht
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DE102004031266A1 (de) 2004-06-29 2006-01-19 Bayerische Motoren Werke Ag Schloss mit einer Drehfalle
JP4513527B2 (ja) * 2004-11-25 2010-07-28 三菱自動車工業株式会社 ドアラッチ装置
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DE102008035389B4 (de) * 2008-07-29 2024-03-07 Kiekert Aktiengesellschaft Drehfalle mit Schließbolzenaufnahme
DE102008037213A1 (de) * 2008-08-11 2010-02-18 Kiekert Ag Schlosshalter für ein Kraftfahrzeugschloss
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Also Published As

Publication number Publication date
EP3807481B1 (fr) 2024-10-02
US20220235587A1 (en) 2022-07-28
DE102018114082A1 (de) 2019-12-19
WO2019238168A1 (fr) 2019-12-19
US11802424B2 (en) 2023-10-31

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