EP4499958A1 - KRAFTFAHRZEUG-SCHLIEßVORRICHTUNG - Google Patents
KRAFTFAHRZEUG-SCHLIEßVORRICHTUNGInfo
- Publication number
- EP4499958A1 EP4499958A1 EP23709313.3A EP23709313A EP4499958A1 EP 4499958 A1 EP4499958 A1 EP 4499958A1 EP 23709313 A EP23709313 A EP 23709313A EP 4499958 A1 EP4499958 A1 EP 4499958A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pawl
- rotary latch
- locking bolt
- stop contour
- locking
- 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
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
- E05B77/36—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
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
- E05B83/18—Locks for luggage compartments, car boot lids or car bonnets for car boot lids or rear luggage compartments
-
- 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
- E05B83/00—Vehicle locks specially adapted for particular types of wing or vehicle
- E05B83/16—Locks for luggage compartments, car boot lids or car bonnets
Definitions
- the invention relates to a motor vehicle locking device, in particular a motor vehicle lock and preferably a motor vehicle tailgate lock, with a locking mechanism consisting essentially of a rotary latch and a pawl, furthermore with a locking bolt which interacts with the locking mechanism, and with a damping element for the locking mechanism and/or the Locking bolt.
- the motor vehicle locking device is usually arranged in or on a motor vehicle door and preferably a motor vehicle tailgate.
- the locking bolt is located on the body side.
- the locking bolt moves into an inlet mouth of the locking mechanism or a lock case or associated lock housing.
- the rotary latch is usually first transferred to a pre-locking position and then to a main locking position, in which it is held in a locked position using the pawl.
- the locking mechanism can also have more than one pawl in the sense of a multiple pawl locking mechanism.
- the damping element provided at this point usually ensures that, for example, the rotary latch or the pawl is braked during this process. As a result, overall improvements in comfort and increased acoustics are observed. This is how the generic state of the art proceeds according to DE 10 2006 025 719 A1.
- the invention is based on the technical problem of further developing such a motor vehicle locking device in such a way that the manufacturing and assembly costs are reduced again compared to previous approaches.
- a generic motor vehicle locking device within the scope of the invention is characterized in that the damping element has at least three stop contours for the rotary latch, the pawl and the locking bolt.
- a (single) and common damping element is used, which is able to dampen both the rotary latch, the pawl and finally the locking bolt during their movement and interaction with one another.
- the invention is initially based on the knowledge that movement damping of the pawl is typically carried out or should advantageously be carried out when the pawl falls into a main catch of the rotary latch.
- the locking bolt In this main locking position of the locking mechanism, the locking bolt is usually also in its end position in comparison to an inlet mouth for the locking bolt defined by the rotary latch, so that the corresponding damping position of the locking bolt usually also corresponds to the corresponding damping position of the locking bolt.
- both the pawl and the locking bolt are usually in their respective damping positions (in the main locking position of the locking mechanism).
- both the pawl and the locking bolt rest on the associated stop contours.
- the stop contour provided for the rotary latch is free of the rotary latch.
- the stop contour for the rotary latch usually only comes into play or has an effect when the rotary latch assumes its completely or almost completely open position (and not the previously described closed position or main catch).
- the associated stop contour for the rotary latch ensures that the mostly spring-supported opening movement of the rotary latch is dampened.
- the damping element is advantageously equipped with a rotary latch arm, a pawl arm and a locking bolt arm.
- the three arms can connect to one another in such a way that the pawl arm and the locking bolt arm extend from the central rotary latch arm on both sides.
- the invention takes into account the fact that, in the main locking position of the locking mechanism, both the pawl and the locking bolt - as described - assume their respective damping position in contact with the associated stop contour of the damping element.
- the damping position of the rotary latch belongs to its fully open position, in which the locking bolt is extended from the inlet mouth of the rotary latch and the pawl is at a distance from the rotary latch or is lifted away from it. In this way, a bolt on the outer circumference of the rotary latch can easily interact with the central rotary latch arm or the stop contour provided there.
- the design is also such that a rotary latch stop contour is arranged on the rotary latch arm, a pawl stop contour on the pawl arm and finally a locking bolt stop contour on the locking bolt arm.
- the pawl stop contour and the locking bolt stop contour each have a central damping recess.
- the central damping recess also takes on a damping function together with the elastically designed damping element. Because in the area of the damping recess, the material of the damping element surrounding the damping recess can escape into the damping recess, so that this also results in an additional macroscopic damping of the movement of both the pawl and the Locking bolt is provided using the damping recess. In contrast, the (elastomeric) material of the damping element predominantly provides microscopic damping. In other words, the damping recess can yield inwards and thus absorb and dampen any relatively hard impacts of the pawl on the one hand and the locking bolt on the other hand on the relevant stop contour. All of this happens without the damping element being mechanically damaged in the area of the associated stop contour in any way.
- the rotary latch stop contour is generally cup-shaped or arch-shaped for a bolt on the rotary latch that engages therein.
- the invention is based on the knowledge that the bolt in question on the outer circumference of the rotary latch only moves or engages in the pot-like rotary latch stop contour in question when the rotary latch assumes its open or almost open position. Due to the pot-like character, the bolt of the rotary latch moving into it is effectively braked and the opening movement of the rotary latch is stopped.
- the pawl stop contour is designed prismatically with a polygonal outer circumference for interaction with a corresponding polygonal recess in the pawl. Due to this corresponding polygonal design, the pawl is not only braked when it assumes the main locking position, but at the same time the pawl is also fixed in its position in this main locking position of the locking mechanism.
- the mutual engagement of the polygonal outer circumference of the pawl stop contour in the corresponding polygonal recess on the pawl ensures that the pawl is centered and that it is held in its position.
- the locking bolt stop contour is usually also prismatic with a trapezoidal outer circumference for the predominantly cylindrical locking bolt that moves against it.
- the trapezoidal outer circumference of the locking bolt stop contour ensures particularly effective damping, especially since the previously described central damping recess is also implemented at this point. Because when the cylindrical locking bolt stops against the trapezoidal outer circumference of the locking bolt stop contour, the corresponding trapezoidal design is, as it were, spread and can also be spread because at the same time the material displaced can escape into the damping recess. In any case, a particularly effective damping of the movement of the locking bolt can be achieved in this way, both in a geometric sense and acoustically.
- the design is such that the locking bolt stop contour and the pawl stop contour enclose an obtuse angle between them.
- the locking bolt stop contour and the pawl stop contour are usually each connected at the end to the central rotary latch arm with the rotary latch stop contour.
- the invention is based on the knowledge that, in particular in the main locking position of the locking mechanism, the pawl on the one hand and the locking bolt on the other hand assume positions spaced apart from one another and, in contrast, the bolt is arranged centrally on the outer circumference of the rotary latch in the open position of the rotary latch, as will be discussed in more detail below with reference for the exemplary embodiment is explained.
- the damping element with the three arms and the three stop contours is made in one piece from a thermoplastic.
- Flexurally elastic or elastomeric plastics have proven to be particularly favorable, for example PUR (polyurethane) plastics and especially special PUR elastomers.
- Other elastomeric plastics such as SBR (styrene-butadiene rubber), NBR (nitrile rubber), EPDM (ethylene propylene diene rubber), etc. can also be used just as well.
- the plastics mentioned can generally be processed by injection molding, so that the damping element with the individual arms and contours can be manufactured in one piece and cost-effectively.
- the one-piece design also favors assembly in a housing of the motor vehicle locking device, so that overall the special advantages already stated above with regard to production and assembly and thus the observed reduced costs are achieved. This is where the main advantages can be seen.
- Figures 1 and 2 show the motor vehicle locking device according to the invention in a detail in different functional positions.
- the figures show a motor vehicle locking device, which is or can be, without limitation, a motor vehicle lock and in particular a motor vehicle tailgate lock.
- the motor vehicle lock shown is equipped with a locking mechanism 1, 2 consisting essentially of a rotary latch 1 and a pawl 2.
- a locking bolt 3 interacting with the locking mechanism 1, 2 can be seen, which may be arranged on the body side, for example, whereas the locking mechanism 1, 2 is arranged on the door or flap side.
- the damping element 4 has a total of three stop contours 4a, 4b, 4c for the rotary latch 1, the pawl 2 and the locking bolt 3.
- a rotary latch stop contour 4a is provided on an associated rotary latch arm, a pawl stop contour 4b on the corresponding pawl arm and finally a locking bolt stop contour 4c on the associated locking bolt arm.
- the respective stop contours 4a, 4b and 4c can be identified with the associated three arms of the damping element 4.
- the three arms connect to one another in such a way that the pawl arm with the pawl stop contour 4b and the locking bolt arm with the locking bolt stop contour 4c extend on both sides from the central rotary latch arm with the rotary latch stop contour 4a.
- Fig. 1 the motor vehicle locking device is shown and reproduced in a main locking position of the locking mechanism 1, 2. It can be seen that in this main locking position, both the pawl 2 and the locking bolt 3 each assume their damping position in contact with the associated stop contour 4b, 4c.
- This illustration also makes it clear that both the pawl stop contour 4b and the locking bolt stop contour 4c each have a central damping recess 5.
- the associated contour or stop contour 4b, 4c can also accommodate relatively large travel distances when the pawl 2 on the one hand and the locking bolt 3 on the other hand stop against the relevant contour 4b, 4c, because the damping recess 5 in question is deformed slightly inwards and allows such a deformation. This means that even large travel distances can be recorded and controlled in connection with the damping.
- the rotary latch stop contour 4a is designed overall as a cup for a bolt 6 engaging therein on the rotary latch 1.
- the bolt 6 is arranged on the outer circumference of the rotary latch 1.
- the bolt 6 in question and thus also the rotary latch 1 are arranged away from the pot-like rotary latch stop contour 4a.
- Stop contour 4a is only used when the rotary latch 1 goes into its fully open or almost completely open position, as shown in FIG. 2.
- the pawl stop contour 4b is prismatically equipped with a polygonal outer circumference.
- This polygonal outer circumference can interact with a corresponding polygonal recess 2a of the pawl 2.
- the locking bolt stop contour 4c is also prismatic with a trapezoidal outer circumference for the predominantly cylindrical locking bolt 3 moving against it. Due to the trapezoidal character of the locking bolt stop contour 4c including the damping recess 5, any movements of the locking bolt 3 into the main locking position and when it stops against the locking bolt stop contour 4c are initially absorbed by possible deformations of the damping recess 5. These deformations are also permitted by the fact that the trapezoidal outer circumference of the locking bolt stop contour 4c, which is trapezoidal at this point, is spread out, so to speak, and consequently allows the damping recess 5 to be deformed.
- both the locking bolt stop contour 4c and the pawl stop contour 4b are one overall include an obtuse angle a between them.
- both the locking bolt stop contour 4c and the pawl stop contour 4b are each connected at the end to the central rotary latch arm with the rotary latch stop contour 4a.
- the damping element with the three arms and the three stop contours 4a, 4b and 4c is made in one piece from a thermoplastic. Elastomeric plastics such as PUR elastomer have proven to be particularly favorable here.
- the motor vehicle locking device or the associated locking mechanism 1, 2 is in its main locking position in the illustration according to FIG.
- the pawl 2 has fallen into a main lock of the rotary latch 1.
- the locking bolt 3 assumes its end position in an inlet mouth of the rotary latch 1. That is, both the pawl 2 and the locking bolt 3 are each in their damping position in contact with the associated pawl stop contour 4b on the one hand and the locking bolt stop contour 4c on the other hand.
- the rotary latch stop contour 4a is not used.
- the bolt 6 can move in the direction of Move the rotary latch stop contour 4a, as can be seen from Fig. 2. Since the rotary latch stop contour 4a is pot-shaped according to the exemplary embodiment, the rotary latch 1 or the bolt 6 located on its outer circumference is received in the cup-like rotary latch stop contour 4a during this process or is braked when retracting into it.
- cup-like rotary latch stop contour 4a is “bent” to a certain extent during this process, which is due to the design made of an elastomer with the It is easily possible with other stop contours 4b and 4c provided on one side.
- a motor vehicle locking device which is equipped with a single damping element 4 made of an elastomeric thermoplastic.
- the damping element 4 takes on a damping function for both the pawl 2 and the locking bolt 3, in particular in the main locking position of the locking mechanism 1, 2.
- the damping element 4 ensures that the rotary latch 1 is also in its fully open or almost completely open position Movement is dampened.
- the movement damping on the part of the damping element 4 ensures that hard impacts are avoided at this point and, in particular, the acoustics are improved. This is where the main advantages can be seen.
Landscapes
- Lock And Its Accessories (AREA)
- Vibration Dampers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022107499.4A DE102022107499A1 (de) | 2022-03-30 | 2022-03-30 | Kraftfahrzeug-Schließvorrichtung |
| PCT/DE2023/100130 WO2023186202A1 (de) | 2022-03-30 | 2023-02-17 | KRAFTFAHRZEUG-SCHLIEßVORRICHTUNG |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4499958A1 true EP4499958A1 (de) | 2025-02-05 |
Family
ID=85505408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23709313.3A Pending EP4499958A1 (de) | 2022-03-30 | 2023-02-17 | KRAFTFAHRZEUG-SCHLIEßVORRICHTUNG |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20250179839A1 (de) |
| EP (1) | EP4499958A1 (de) |
| JP (1) | JP2025510983A (de) |
| KR (1) | KR20240165461A (de) |
| CN (1) | CN118946705A (de) |
| DE (1) | DE102022107499A1 (de) |
| WO (1) | WO2023186202A1 (de) |
Family Cites Families (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2320351A1 (de) * | 1973-04-21 | 1974-10-31 | Kiekert Soehne Arn | Kraftfahrzeug-tuerverschlussgehaeuse |
| JPS5545005Y2 (de) * | 1975-12-26 | 1980-10-22 | ||
| US4130308A (en) * | 1977-08-16 | 1978-12-19 | Wilmot-Breeden Limited | Motor vehicle door latches |
| US4358141A (en) * | 1979-04-07 | 1982-11-09 | Mitsui Kinzoku Kogyo Kabushiki Kaisha | Noise prevention device in an automobile locking apparatus |
| AU584509B2 (en) * | 1986-12-19 | 1989-05-25 | Kabushikikaisha Anseikogyo | Vehicle door latch |
| DE3927445C2 (de) * | 1989-08-19 | 2000-12-07 | Kiekert Ag | Kraftfahrzeug-Türverschluß |
| JPH04194182A (ja) * | 1990-11-27 | 1992-07-14 | Mitsui Mining & Smelting Co Ltd | 車両ドアロック装置におけるゴムストツパー |
| FR2782111B1 (fr) * | 1998-08-05 | 2002-12-06 | Valeo Securite Habitacle | Serrure electrique perfectionnee pour ouvrant de vehicule automobile |
| US6024389A (en) * | 1998-08-31 | 2000-02-15 | General Motors Corporation | Vehicle door latch with stiffness adjustment |
| GB0006932D0 (en) * | 2000-03-23 | 2000-05-10 | Meritor Light Vehicle Sys Ltd | Latch mechanism |
| JP3583985B2 (ja) * | 2000-11-13 | 2004-11-04 | 三井金属鉱業株式会社 | 車両ドアラッチ装置 |
| DE10216313A1 (de) * | 2002-04-12 | 2003-10-23 | Bayerische Motoren Werke Ag | Drehfalle eines Schlosses mit einer Dämpfungsschicht |
| ITTO20020512A1 (it) * | 2002-06-14 | 2003-12-15 | Intier Automotive Closures Spa | Serratura per una porta di un autoveicolo |
| DE10320457A1 (de) * | 2003-05-08 | 2004-12-16 | Kiekert Ag | Kraftfahrzeugtürverschluss |
| US7780205B2 (en) * | 2003-05-08 | 2010-08-24 | Kiekert Ag | Motor vehicle door lock |
| GB0321909D0 (en) * | 2003-09-19 | 2003-10-22 | Arvinmeritor Light Vehicle Sys | Latch bolt |
| GB0423702D0 (en) * | 2004-10-26 | 2004-11-24 | Arvinmeritor Light Vehicle Sys | Latch assembly |
| DE102005023991B4 (de) * | 2005-05-20 | 2024-01-11 | Kiekert Aktiengesellschaft | Kraftfahrzeugtürverschluss |
| DE102006025719A1 (de) | 2006-06-02 | 2007-12-06 | Kiekert Ag | Schließvorrichtung mit Dämpfungselement |
| KR20090102046A (ko) | 2008-03-25 | 2009-09-30 | 기아자동차주식회사 | 자동차용 도어래치의 댐핑장치 |
| KR100921968B1 (ko) * | 2008-03-12 | 2009-10-15 | 대기오토모티브 주식회사 | 차량용 도어래치 조립체의 댐핑부재 |
| JP5271626B2 (ja) * | 2008-07-28 | 2013-08-21 | シロキ工業株式会社 | ドアロック装置の静震構造 |
| JP5285541B2 (ja) * | 2009-08-25 | 2013-09-11 | シロキ工業株式会社 | 車両用ロック装置 |
| DE102011003410A1 (de) * | 2011-01-31 | 2012-08-02 | Kiekert Ag | Kraftfahrzeugschloss |
| DE202012001961U1 (de) | 2012-02-28 | 2013-05-29 | Kiekert Aktiengesellschaft | Kraftfahrzeugtürverschluss |
| US10450782B2 (en) * | 2014-01-17 | 2019-10-22 | Inteva Products, Llc | Apparatus and method for enhancing sound performance of a latch |
| JP6435561B2 (ja) | 2014-10-29 | 2018-12-12 | 三井金属アクト株式会社 | 車両用ドアラッチ装置 |
| JP6413147B2 (ja) * | 2014-12-19 | 2018-10-31 | 三井金属アクト株式会社 | 車両用ドアラッチ装置 |
| DE102016218299A1 (de) * | 2015-09-29 | 2017-03-30 | Magna Closures S.P.A. | Ein-Motor-Verriegelungsanordnung mit Kraft-Anzug und Kraft-Entriegelung mit einer weichen Öffnungsfunktion |
| DE102017102899A1 (de) * | 2017-02-14 | 2018-08-16 | Kiekert Ag | Kraftfahrzeugtürschloss |
| US11377880B2 (en) * | 2017-05-25 | 2022-07-05 | Magna Closures Inc. | Vehicular latch assembly with latch mechanism having self-locking ratchet |
| DE102017120340A1 (de) * | 2017-09-05 | 2019-03-07 | Kiekert Ag | Kraftfahrzeugschloss mit Bremselement |
| DE102017123622A1 (de) * | 2017-10-11 | 2019-04-11 | Kiekert Ag | Kraftfahrzeugschloss, insbesondere Heckklappenschloss |
| CN111188543A (zh) * | 2018-11-15 | 2020-05-22 | 开开特股份公司 | 汽车锁 |
| US11608661B2 (en) | 2019-12-04 | 2023-03-21 | Kiekert Ag | Motor vehicle door lock |
-
2022
- 2022-03-30 DE DE102022107499.4A patent/DE102022107499A1/de active Pending
-
2023
- 2023-02-17 US US18/845,180 patent/US20250179839A1/en active Pending
- 2023-02-17 WO PCT/DE2023/100130 patent/WO2023186202A1/de not_active Ceased
- 2023-02-17 EP EP23709313.3A patent/EP4499958A1/de active Pending
- 2023-02-17 CN CN202380030445.1A patent/CN118946705A/zh active Pending
- 2023-02-17 JP JP2024557540A patent/JP2025510983A/ja active Pending
- 2023-02-17 KR KR1020247036045A patent/KR20240165461A/ko active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US20250179839A1 (en) | 2025-06-05 |
| JP2025510983A (ja) | 2025-04-15 |
| DE102022107499A1 (de) | 2023-10-05 |
| WO2023186202A1 (de) | 2023-10-05 |
| CN118946705A (zh) | 2024-11-12 |
| KR20240165461A (ko) | 2024-11-22 |
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