EP4569192A1 - Schloss für ein kraftfahrzeug - Google Patents
Schloss für ein kraftfahrzeugInfo
- Publication number
- EP4569192A1 EP4569192A1 EP23748697.2A EP23748697A EP4569192A1 EP 4569192 A1 EP4569192 A1 EP 4569192A1 EP 23748697 A EP23748697 A EP 23748697A EP 4569192 A1 EP4569192 A1 EP 4569192A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking
- pawl
- lock
- rotary latch
- main
- 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
- E05B81/00—Power-actuated vehicle locks
- E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
- E05B81/20—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators for assisting final closing or for initiating opening
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
- E05B81/66—Monitoring or sensing, e.g. by using switches or sensors the bolt position, i.e. the latching status
-
- 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 lock for a motor vehicle, in particular a motor vehicle side door lock, comprising a locking mechanism with a rotary latch and at least one pawl, the rotary latch being lockable in a pre-locking position and a main locking position, a main locking pawl and a pre-locking pawl.
- Pawl, the pre-latch of the locking mechanism being formed by an angled region of a metallic base body of the rotary latch.
- Locks or locking devices for motor vehicles are used where pivoting or displaceable components on the motor vehicle must be secured in their position.
- the locking device works together with a lock holder, with a locking device of the locking device being moved into a locked position by a relative movement of the locking device to a lock holder.
- Areas of application for these locks include flaps, doors and sliding doors, but also, for example, backrest locks for rear seats in motor vehicle interiors.
- the invention preferably relates to a lock for a tailgate of a motor vehicle.
- the locking systems are designed as electrically actuated locking systems.
- Electrically operated locking systems use electric motors that enable the lock to be unlocked and the lock to be opened electrically.
- the operator can, for example, open his tailgate remotely without having to intervene manually on the vehicle.
- so-called locking devices are also used.
- the closing devices make it possible for a tailgate, but also a side door, to be moved into its final closed position with electrical support.
- the lock In order to be able to provide this automatic closing process, the lock must be able to be moved into its final closing position.
- the lock according to the invention has a locking mechanism with a rotary latch and at least one pawl.
- the rotary latch is pivotally held on a metal lock plate and can interact via an inlet area with a lock holder or lock holder bracket attached to the motor vehicle.
- the rotary latch is moved from an open position to a first closed position by the relative movement of the lock holder, which is usually permanently mounted on the motor vehicle.
- a pawl engages in the rotary latch in such a way that the movement of the rotary latch is blocked.
- the rotary latch cannot be opened again without moving the pawl.
- closing aids are used. These closing devices interact with the locking mechanism in such a way that the rotary latch is transferred from the locked pre-locking position to a main locking position. In other words, the rotary latch is electrically supported further into its position Moved into closing position.
- the closing device moves the rotary latch into the main latching position, in which in turn a pawl or the same pawl engages with the rotary latch and locks the rotary latch in its main latching position.
- the rotary latch is then in its final position and the door or flap is in its final closed position.
- the rotary latch In order to be able to reach the main locking position safely, the rotary latch is moved into an overstroke position using the closing device.
- Overstroke position means that the rotary latch is moved further into the closed position than is necessary for the main locking pawl to engage.
- a pawl in order to achieve the pre-locking position and the main locking position, a pawl must interact with the rotary latch. Only one pawl can interact with the rotary latch or two or more pawls can be used, which, for example, interact with the rotary latch at different levels. It is also known that, for example, in a main locking position of the locking mechanism, there is an opening moment in the locking mechanism, whereby the opening torque means a force by which the pawl is forced out of the locking position. In order to prevent the locking mechanism from unlocking automatically in this case, the pawl is secured using a Locking or blocking lever additionally secured in the locking position.
- a locking device with a pre-locking pawl and a separate main locking pawl, which interact with the pawl in parallel planes and at a distance is known, for example, from DE 10 2007 003 948 Al.
- the locking mechanism also has an opening moment in the main latching position, with the main latching pawl being secured in its main latching position by means of a latching or blocking lever. If the main latching pawl engages in the rotary latch in a plane of a metal base body of the rotary latch, the pre-latching pawl acts on a bolt on the rotary latch in order to realize the pre-latching position of the locking mechanism.
- a generic state of the art is formed by DE 102012 207 443 Al.
- the document discloses a lock for a motor vehicle, in particular a motor vehicle side door lock, having a locking mechanism with a rotary latch and a pawl, the rotary latch being lockable in a pre-locking position and a main locking position, with a pre-locking of the locking mechanism being provided by an angled area of a metallic Base body of the rotary latch is formed. Through this bend on the metallic base body, a pre-locking can be achieved by the metallic base body of the rotary latch itself. Providing the pre-lock on the rotary latch through the metal base body itself offers the advantage that there is no need to form an additional bolt and also to mount the bolt on the rotary latch.
- the locking systems or locks known from the prior art have generally proven themselves. Based on the state of the art, the developers of locking systems, as well as the automotive industry itself, always strive to provide improved locking systems. The space required in the motor vehicle, the weight of the locking system and also the noise behavior play a decisive role. As described above, electromagnets and closing aids are used to increase operating comfort for the vehicle user. The additional functions require a more complex structure of the locking systems and thus an increased number of components, which in turn cause costs and influence the weight of the locking system. This is where the invention comes into play.
- the object of the invention is to provide an improved lock for a motor vehicle.
- a lock for a motor vehicle.
- a locking device with a rotary latch and at least one pawl, the rotary latch being lockable in a pre-locking position and a main locking position, a main locking pawl and a pre-locking pawl, with a pre-locking of the locking mechanism being provided by an angled region of a metallic base body
- Rotary latch is formed and wherein the angled area can be brought into engagement with a closing pawl of a closing device.
- the closing device thus interacts directly with the rotary latch and in particular with the engagement surface on the rotary latch, which is also used to realize the pre-locking position in the motor vehicle lock.
- the angled area on the rotary latch therefore has a dual function.
- a first locking position when closing the locking mechanism can be achieved via the angled area and at the same time the closing pawl can access the angled area in order to achieve complete closing and reaching the main locking position of the locking mechanism. Consequently, a high level of functionality can be provided in the motor vehicle lock with minimal design resources.
- the lock according to the invention can be a lock for a tailgate, a side door, a flap or cover, but also, for example, for a seat back of a rear seat of a vehicle.
- the invention preferably relates to a lock for a tailgate of a motor vehicle.
- Special requirements are placed on the tailgate locks because, in contrast to sliding door locks, for example, they can be exposed to different loads. For example, it can happen that the tailgate is loaded with a snow load, so that when it is opened, and in particular when opened electrically, it must be ensured that the lock is fully open until the loaded flap is closed again .
- the locking mechanism may be opened electrically, but the lock holder in engagement with the rotary latch does not cause any relative movement in the locking mechanism, since the tailgate remains in its position due to the high load. In this case, the pawl or pawls must be kept out of engagement with the rotary latch. Keeping the pawl out of engagement when the locking mechanism is unlocked is also known as the snow load function.
- the rotary latch has a metallic base body which is pivotably mounted in the motor vehicle lock via a likewise metallic axis.
- the pivot axis of the rotary latch as well as the pawl or pawls is also held in a metal lock case.
- This basic metallic structure of the motor vehicle lock can ensure that even in extreme situations, such as an accident, a secure holding of the pivotable or displaceable component on the motor vehicle can be ensured.
- metallic areas of the pawl and the rotary latch rest against one another in order to achieve secure locking and in particular positionally accurate locking of the locking mechanism.
- an angled region is provided on the metallic base body of the rotary latch, the angled region preferably having an angle of 90° to the base of the rotary latch and extending beyond the flat extent of the rotary latch.
- the angled area thus forms a one-piece component with the rotary latch and engages with the pre-locking pawl.
- each pawl is assigned a separate switching means.
- two switching means in particular microswitches, are provided in the motor vehicle lock, each of which can detect a position of the pawl. This is an advantage, particularly with regard to the electrical actuation of the motor vehicle lock, since safe opening and closing of the lock and reliable detection of the positions of the locking pawls can be detected.
- the pre-locking pawl is movable independently of the main locking pawl.
- An independent movement of the pre-locking pawl can ensure that the pre-locking position is reached safely and, on the other hand, additional functions can be implemented using the pre-locking pawl.
- Reaching the pre-locking position safely is also advantageous because if the main locking position is not reached, for example if an object has gotten into the opening area of the tailgate, the pre-locking pawl can hold the tailgate even during ferry operations be guaranteed.
- the further advantage of the independence of the movement of the pre-latching pawl arises when the main latching pawl can be actuated by means of a movement of the pre-latching pawl, in particular can be actuated when moving in the direction of unlocking the locking mechanism.
- the pre-locking pawl has an additional function here, namely that the main locking pawl is moved out of the engagement area of the rotary latch.
- the pre-latching pawl therefore serves not only as a means of blocking the movement of the rotary latch, but also to keep the main latch pawl out of engagement with the rotary latch. This is particularly advantageous when the aforementioned snow load, for example, acts on the motor vehicle.
- the forced movement of the main locking pawl by the pre-locking pawl can therefore ensure safe unlocking of the locking mechanism even in extreme situations.
- a further embodiment variant of the invention is achieved if, during a movement in the direction of locking the locking mechanism, the pre-latching pawl can be moved independently of the main latching pawl. This ensures that, on the one hand, the main locking pawl rests on the rotary latch, preferably spring-loaded, and the pre-locking pawl is movable over the main locking pawl and can fall into the pre-locking position.
- the main ratchet pawl consequently slides along the rotary latch moving in the closing direction and is spring-loaded against an outer contour of the rotary latch.
- the pre-latching pawl can also be spring-loaded against the pre-latching of the rotary latch and can fall into the pre-latching position when the rotary latch is in the appropriate position. If the rotary latch moves further in the closing direction, an extension on the pawl ensures that the pre-locking pawl moves further into the area of engagement with the rotary latch. If the rotary latch now reaches its main latching position during the closing movement, the main latching pawl can fall into the main latching position of the rotary latch, whereby at the same time the pre-latching pawl slides along the pre-latching position and rests against the pre-latching position by means of the extension. By using the pre-locking pawl, the locking mechanism can then be unlocked and the lock opened.
- both switching means can be actuated when the locking mechanism is unlocked.
- the pre-locking pawl and the main locking pawl each have a separate extension that can be brought into engagement with the respective switching means.
- the switching means are arranged in the motor vehicle lock in such a way that both switching means, which are preferably designed as microswitches, are actuated in the open position of the locking mechanism.
- a further advantage of a design variant arises when, in a pre-locking position of the locking mechanism, a switching means assigned to the pre-locking pawl is unactuated. Due to the free pivoting of the pre-locking pawl in relation to the rotary latch as well as in relation to the main locking pawl, the position of the locking mechanism or the locking position can be clearly detected. If the main locking pawl is spring-loaded against the rotary latch in the pre-locking position and the switching means for the main locking pawl is actuated at the same time, a switching signal can be achieved using the main locking pawl. The pre-locking pawl releases the switching means in the pre-locking position. In other words, the extension of the pre-locking pawl is no longer in contact with the switching means. This electrical circuit allows the pre-locking in the locking mechanism to be clearly detected.
- both switching means are unactuated in a main locking position of the locking mechanism.
- the switching position both switching means unactuated, offers the advantage that the switching means experience a low load during their service life.
- the main locking position can be reliably determined, since the switching position of both switching means clearly indicates that the main locking position has been reached safely. can be closed.
- both the pre-latching pawl and the main latching pawl can have an extension that can be brought into engagement with the switching means.
- the extension can be designed in such a way that the switching means are only released when the pre-latching position or the main latching position has been safely reached.
- a faulty engagement of the main locking pawl would then not result in the switching means for the main lock being released.
- a main locking pawl that has only collapsed in certain areas does not release the switch, so that the risk of an apparent closure can be avoided.
- An apparent closing occurs when the main locking pawl is only partially engaged, so that the main lock can come loose when the motor vehicle is being operated. This is prevented by the extension arranged on the main locking pawl and in particular by the design of the extension in interaction with the switching means.
- the pawls can advantageously be mounted on a common axis.
- the pawls are safety-relevant components that must meet the requirements even in the event of extreme loads. In other words, the pawls must keep the motor vehicle lock closed even in the event of an accident.
- the pawls are pivotally mounted on a metal axle, with the metal axle being accommodated in a lock plate.
- a reinforcing plate can be arranged between the pawl axis and the rotary latch axis, whereby additional stabilization of the locking mechanism as a whole can be achieved.
- the joint storage of the two pawls on one Axis offers the advantage that a compact design of the motor vehicle lock can be achieved.
- the switching means are arranged on different levels and at a distance from one another in the lock.
- the arrangement of the switching means on different levels enables a simple structure of the pawls and a small amount of corresponding extension for the interaction of pawls and switching means. This in turn supports the compactness of the motor vehicle lock and enables a simple construction of the pawls.
- the pawls themselves only require a radial extension of the extension in order to be able to be brought into engagement with the switching means.
- FIG. 1 shows a motor vehicle lock constructed according to the invention in the form of a tailgate lock in an unlocked position
- Figure 2 shows the motor vehicle lock according to the invention according to Figure 1 in a pre-locking position
- Figure 3 shows the motor vehicle lock according to the invention in one
- the locking mechanism has a rotary latch 3, a pre-locking pawl 4 and a main locking pawl 5.
- the locking parts 3, 4, 5 are pivotally accommodated in a lock case 8 by means of axes 6, 7.
- the lock case 8 has an inlet area 9 through which a lock holder, not shown, can interact with the rotary latch 3 in a known manner.
- the lock case 8 also has folds 10, 11, by means of which the motor vehicle lock 1 can be fastened to a motor vehicle or a body of the motor vehicle. To explain the invention, only a few components of the motor vehicle lock 1 are shown, which are essential for explaining the invention.
- the pawls 4, 5 have extensions 12, 13, which can each be brought into engagement with a switching means 14, 15.
- the switching means 14, 15 are shown in an actuated position in FIG , 15 are designed as microswitches in this embodiment variant and are shown actuated.
- Figure 1 shows an unlocked position of the locking mechanism 2, so that the rotary latch 3 is able to move in the direction of arrow P, that is, in the counterclockwise direction.
- the movement of the rotary latch 3 takes place by a not shown Rotary latch spring that loads the rotary latch 3 in the direction of arrow P and by a sealing pressure that is exerted by a tailgate on the motor vehicle lock or the lock holder.
- the rotary latch In this open position, the rotary latch is able to release the lock holder and a tailgate can be opened.
- the pre-locking position of the locking mechanism 2 is now shown in FIG.
- a lock holder 16 comes into engagement with the motor vehicle lock 1 and in particular the rotary latch 3 from the direction of arrow PI.
- This moves the rotary latch 3 in the direction of arrow P2.
- the pre-locking pawl 4, as well as the main locking pawl 5, are spring-loaded against the rotary latch 3.
- the pre-locking pawl 4 can fall into a pre-locking position 17 of the rotary latch 3.
- the pre-latch 17 is made in one piece from a metallic base body of the rotary latch
- the metallic base body 18 of the rotary latch 3 is largely surrounded by a plastic casing in order, for example, to enable the pawl to be guided as well as a low-noise interaction between the pawls 4, 5 and the rotary latch 3.
- a low-noise interaction is also made possible by the plastic casing 19 on the rotary latch 3 with the lock holder 16, whereby, for example, additional recesses can be present on the pawl 3 and in particular in the plastic casing 19 in order to ensure noise dampening. function in the interaction between the rotary latch 3 and the lock holder 16.
- the pre-locking pawl 4 is spring-loaded in the direction of the rotary latch 3 but can also be moved independently of the main locking pawl 5.
- the pre-latching pawl 4 can thus fall unhindered into the pre-latching 17 when the rotary latch is moved, for example, by the lock holder 16 in the closing direction P2.
- Figure 3 shows the closed position of the motor vehicle lock 1, with the main locking position of the locking mechanism 2 being shown.
- the main catch pawl 5 has fallen into the main catch 21 and lies against the main catch 21.
- the main rest can be seen better in Figure 2.
- the motor vehicle lock can be opened by moving the pre-locking pawl 4 around the axis 6 in the direction of the arrow P.
- a movement of the pre-locking pawl 4 results in the main locking pawl 5 being taken along by the pre-locking pawl 4.
- This enables the locking mechanism 2 to be unlocked safely, since the opening locking mechanism or the opening rotary latch 3 is prevented from incorrectly engaging into the pre-latch 17.
- the independent movement of the pre-locking pawl 4 thus enables the locking mechanism 2 to be unlocked safely also an incorrect engagement of the pre-locking pawl 4 into the pre-locking 17.
- the structure of the motor vehicle lock 1 according to the invention makes it possible to achieve a compact structure of the motor vehicle lock, with a high level of functionality being able to be provided with minimal design resources.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022119992.4A DE102022119992A1 (de) | 2022-08-09 | 2022-08-09 | Schloss für ein Kraftfahrzeug |
| PCT/DE2023/100528 WO2024032843A1 (de) | 2022-08-09 | 2023-07-19 | Schloss für ein kraftfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4569192A1 true EP4569192A1 (de) | 2025-06-18 |
Family
ID=87551221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23748697.2A Pending EP4569192A1 (de) | 2022-08-09 | 2023-07-19 | Schloss für ein kraftfahrzeug |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20260035967A1 (de) |
| EP (1) | EP4569192A1 (de) |
| JP (1) | JP2025528131A (de) |
| KR (1) | KR20250044909A (de) |
| CN (1) | CN119677919A (de) |
| DE (1) | DE102022119992A1 (de) |
| WO (1) | WO2024032843A1 (de) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19702205B4 (de) * | 1997-01-23 | 2004-12-23 | Kiekert Ag | Kraftfahrzeugtürschloß, insbesondere für Kraftfahrzeuge mit Zentralverriegelungs- und Diebstahlsicherungseinrichtung |
| US6053542A (en) * | 1998-06-26 | 2000-04-25 | General Motors Corporation | Vehicle door latch with cinching mechanism |
| DE20120219U1 (de) * | 2001-12-13 | 2002-04-18 | TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf | Sperrklinke |
| ITTO20020510A1 (it) * | 2002-06-14 | 2003-12-15 | Intier Automotive Closures | Serratura per una portiera di un autoveicolo |
| DE102006052773A1 (de) * | 2006-11-09 | 2008-05-15 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Verschluss eines Fahrzeugs |
| DE102007003948A1 (de) | 2006-11-22 | 2008-05-29 | Kiekert Ag | Schlosseinheit mit mehrteiliger Sperrklinke |
| DE102008035607A1 (de) * | 2008-07-31 | 2010-02-04 | Kiekert Ag | Schlosseinheit mit zwei Sperrklinken und Positionserkennungsmitteln |
| DE102008048773A1 (de) * | 2008-09-24 | 2010-03-25 | Kiekert Ag | Kraftfahrzeugtürverschluss |
| DE102008048711A1 (de) * | 2008-09-24 | 2010-03-25 | Kiekert Ag | Drehfalle mit Konturplatten |
| US8894106B2 (en) * | 2011-05-19 | 2014-11-25 | Inteva Products, Llc | Vehicle latch |
| DE102012207443A1 (de) | 2012-05-04 | 2013-11-07 | Kiekert Ag | Schloss für eine Klappe oder Tür |
| US11306518B2 (en) * | 2017-03-02 | 2022-04-19 | Kiekert Ag | Vehicle door lock, especially tailgate lock |
| DE102018116285A1 (de) * | 2018-07-05 | 2020-01-09 | Kiekert Ag | Schloss mit Zuzieheinrichtung für ein Kraftfahrzeug |
-
2022
- 2022-08-09 DE DE102022119992.4A patent/DE102022119992A1/de active Pending
-
2023
- 2023-07-19 CN CN202380058272.4A patent/CN119677919A/zh active Pending
- 2023-07-19 EP EP23748697.2A patent/EP4569192A1/de active Pending
- 2023-07-19 JP JP2025507286A patent/JP2025528131A/ja active Pending
- 2023-07-19 WO PCT/DE2023/100528 patent/WO2024032843A1/de not_active Ceased
- 2023-07-19 KR KR1020257007071A patent/KR20250044909A/ko active Pending
- 2023-07-19 US US19/100,612 patent/US20260035967A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024032843A1 (de) | 2024-02-15 |
| CN119677919A (zh) | 2025-03-21 |
| JP2025528131A (ja) | 2025-08-26 |
| KR20250044909A (ko) | 2025-04-01 |
| US20260035967A1 (en) | 2026-02-05 |
| DE102022119992A1 (de) | 2024-02-15 |
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