EP3810875A1 - SCHLIEßEINRICHTUNG FÜR KRAFTFAHRZEUGTECHNISCHE ANWENDUNGEN - Google Patents
SCHLIEßEINRICHTUNG FÜR KRAFTFAHRZEUGTECHNISCHE ANWENDUNGENInfo
- Publication number
- EP3810875A1 EP3810875A1 EP19734675.2A EP19734675A EP3810875A1 EP 3810875 A1 EP3810875 A1 EP 3810875A1 EP 19734675 A EP19734675 A EP 19734675A EP 3810875 A1 EP3810875 A1 EP 3810875A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pawl
- carrier
- locking
- rotary latch
- pivot axis
- 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
Links
Classifications
-
- 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
- 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
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/04—Spring arrangements in locks
- E05B2015/0486—A single spring working on more than one element
-
- 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
- E05B77/36—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
Definitions
- the invention relates to a locking device for automotive applications having a locking mechanism consisting of a rotary latch and at least one pawl, where the rotary latch can be locked by means of the pawl at least in a main latching position and a carrier clip can be provided, the pawl being pivotable independently of a pivot axis of the carrier pawl is attachable to the pawl.
- a generic lock or a locking device for a motor vehicle has a locking mechanism with a pivotally mounted rotary latch for receiving the locking bolt.
- the locking mechanism also has a pawl with which the catch can be locked in a locking position.
- the parts of the locking mechanism are generally pivotally mounted on a metal lock plate or lock case.
- the rotary latch of a motor vehicle lock usually has a fork-shaped inlet slot formed by a load arm and catch arm, in that the locking bolt of a vehicle door or flap, for example a hood, a sliding door, cover or a trunk flap, arrives when the door or flap is closed , The locking bolt then swivels the catch from an open position to a closed position. When the rotary latch has reached the closed position, it is locked in this position by the pawl. The locking bolt can then no longer leave the inlet slot of the rotary latch. This locking position is also called the main locking position.
- the pre-locking position is used to intercept the corresponding door or flap if it does not reach the main locking position when closing.
- the pre-locking position also serves if, for example, the locking mechanism is opened unintentionally from the main locking position. In this case, the pre-locking position serves as a measure to prevent accidental opening of the movable component.
- Locking of locking devices for automotive technical applications can be designed so that a locking moment is generated from the engagement between the pawl and the catch, which must be overcome with the help of an actuating device to open the locking mechanism.
- Closing moment means that the pawl cannot be moved out of its locked position due to pressure exerted by the catch.
- the rotary latch can then preferably introduce such a torque into the pawl that a force is exerted on the pawl in the direction of the latching position in order to latch particularly reliably.
- a pawl of such a locking mechanism is referred to below as a pawl with a closing moment.
- a pawl with an opening moment is understood below that a latched rotary latch can initiate an opening moment in the associated pawl by pressure, by means of which the pawl can be moved out of its locking position.
- a pawl with an opening moment has become known, for example, from DE 10 2007 003 948 A1.
- a lock with a locking mechanism comprising a rotary latch for receiving a locking bolt and a pawl with a closing moment for locking the rotary latch in a latching position, one of which there is another pawl with an opening moment, which is also able to lock the catch in this locking position.
- the two pawls work together via a driver and an elongated hole.
- the slot he stretches so that the pawl first a closing moment can be moved out of its locking position without necessarily also moving the pawl with the opening moment out of its locking position.
- the catch is then only on the pawl with the opening moment. By initiating an opening moment, the pawl can then be moved out of its latched position and the latch can be unlocked or opened easily and with reduced opening noise.
- the generic state of the art is formed by DE 10 2009 029 023 A1.
- the document discloses a locking device for automotive applications, with a locking mechanism consisting of a rotary latch and a pawl, the rotary latch being lockable by means of the locking pawl in a main latching position and a carrier pawl being provided on which the pawl is independent of a pivot axis of the carrier pawl is pivotally mounted on the pawl.
- the locking device combines the advantages of a pawl pivotally mounted on a carrier pawl with the possibility of favorable engagement conditions, which allows the pawl to roll while the locking mechanism is released.
- the object of the invention is to provide an improved locking device for automotive applications.
- the object of the invention is achieved in that a locking device is provided for automotive applications, having a locking mechanism consisting of a rotary latch and at least one pawl, the rotary latch being lockable by means of the locking pawl at least in a main latching position and a carrier pawl is provided, the locking pawl is pivotally mounted on the support pawl independently of a pivot axis of the support pawl and the locking pawl is mounted on the support pawl in such a way that a locking moment can be introduced into the support pawl by means of the locking pawl at least in a main latching position.
- the construction of the locking device according to the invention now makes it possible to provide a structurally simple embodiment of a locking device that eliminates or reduces opening noise to a minimum with simple constructive means.
- the closing moment being able to be used to position the pawl
- Both properties, closing moment and ability to roll, can advantageously support or enable a structurally simple structure and a low-noise unlocking of the lock.
- the closing moment which can be introduced into the carrier pawl, no further stabilizing component is in the Locking device required so that a safe and low-noise actuation of the locking mechanism is made possible with a minimum number of components.
- motor vehicle locksmith are included, for example, in side doors, sliding doors, flaps, hoods and / or covers are set, exactly where swivel-mounted or slidably 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 locking device which can also be referred to as a motor vehicle lock or lock, has a locking mechanism which has a rotary latch and at least one pawl.
- at least one pawl is arranged in a plane with the catch and is able to lock the catch in one position in cooperation with a lock holder.
- an inlet mouth of the rotary latch points in the direction of a lock holder, a relative movement between the lock holder and the rotary latch causing the rotary latch to pivot.
- the pawl is usually and in particular in the embodiment according to the invention biased in the direction of the catch so that the pawl comes into engagement with the catch when reaching a locking position.
- the carrier pawl is part of the pawl system consisting of the carrier pawl and pivotable pawl mounted on the carrier pawl.
- the pawl is in direct connection with the catch.
- the pawl is pivoted gela on the carrier pawl, the pivot axis of the carrier pawl being spaced from the pivot axis of the pawl.
- the spacing of the two axes of the pawl system is used according to the invention and in an advantageous manner to utilize the torque relationships, that is to say closing moment, neutral moment and opening moment, in such a way that self-locking in the pawl system or in the locking mechanism can be set in a targeted manner.
- the ratchet is held in the main latching position in a locking position with a closing moment by means of the pawl.
- the closing moment includes the closing moment and also the neutral moment, all of these states in which the locking pawl system is held in the latching position without external force.
- the carrier pawl has a stop surface for the pawl.
- the training of a stop surface that is, a stop on the carrier pawl enables the position of the pawl system to be further stabilized.
- the pawl is pivotally mounted on the carrier pawl and is in one grip with the engagement surface of the rotary latch. If a stop is now formed on the carrier pawl against which the pawl comes to rest in the latching or the different latching positions, the position of the Pawl on the pawl further stabilized who, so that a safe positioning of the pawl system is possible.
- the stop on the Staull ke can be integrally formed with the carrier pawl.
- the stop for example is mounted as a cylindrical pin or separate stop component on the carrier pawl.
- the stop can be sheathed with plastic at least in some areas in order to function as quietly as possible when it interacts with the pawl.
- the casing can preferably be formed from an elastomeric plastic, so that the stop has a damping effect, as a result of which the stop receives a double function.
- the stop serves to position the pawl and, on the other hand, the stop serves as a damping means in the locking mechanism.
- the pawl has an extension, the extension being engageable with a pivot axis of the carrier pawl. If the pawl is provided with an extension, the extension, for example, being integrally formed on the pawl, then by means of the interplay of the extension with the pivot axis of the carrier pawl, a stop means can be provided by the pawl.
- the pawl and the carrier pawl move in different pivoting directions, the pawl preferably being able to be guided, for example, clockwise from the main latching position, whereas the carrier pawl then moves counterclockwise. Due to the opposite movement of the components of the pawl system can in a stop system for the pawl system and in particular the pawl can be provided in a structurally simple manner.
- the increased mass of the pawl can counteract an unintentional opening of the locking mechanism.
- An unintentional opening of the locking mechanism can occur, for example, when the motor vehicle is subject to a strong impulse, such as an accident.
- the extension can thus act as a stop and safety system in a dual function.
- a spring element can be used which pretensions the pawl against the stop surface or the pivot axis of the carrier pawl. The pretension on the pawl enables a safe res falling into the locking position or the multiple locking position.
- the spring element supports the operative connection between the pawl and the catch. Especially when unlatching, i.e. opening the locking mechanism, a safe interaction between the catch and the pawl can be guaranteed.
- a further embodiment variant of the invention results when the carrier pawl can be pretensioned in the direction of a latching position of the pawl by means of a spring.
- a spring can stabilize the position of the pawl, so a spring element, which acts on the carrier pawl, serves to further stabilize and position the pawl system in relation to the rotary case.
- the carrier pawl is preferably directed counter to the pretensioning of the pawl. This ensures that, on the one hand, the pawl can be pretensioned in the direction of the catch and, on the other hand, the carrier pawl can act against a release lever by means of spring preload.
- a release lever is part of the release chain for unlocking the locking mechanism, whereby an inside actuation handle or an outside actuation handle can mechanically engage the release lever, for example, so that the pawl system can be moved out of the locked position by means of the release lever.
- the pawl and the carrier pawl can advantageously be pretensioned by means of a leg spring.
- the use of only one leg spring enables the construction of a constructively favorable pawl system which enables a high functionality of the locking mechanism with minimal constructive means.
- the pivot axis of the pawl and the carrier pawl can be closed by means of the leg spring. It is thus conceivable that the leg spring has at least a first turn section and a second turn section, the first turn section closing the pivot axis of the pawl and the second turn section closing the pivot axis of the carrier pawl.
- leg spring This type of construction of the leg spring or the arrangement of the leg spring on the pawl system allows a maximum use concept with high functionalities in the pawl system to be achieved with minimal installation space.
- the leg spring can loop around the pivot axis of the carrier pawl one, two or more times and also loop around the pivot axis of the pawl one, two or more times in order to provide a spring constant that is favorable for the embodiment of the pawl system. This means that maximum functionality and noise reduction can be made available in the smallest of structural spaces.
- the moment can be influenced via the number of turns of the turns and / or the diameter of the turns. Thus, two, in particular different, moments can be realized by means of a leg spring.
- the opening torque and / or the speed of the movement of the pawl in the direction of the stop of the carrier pawl can be influenced via the number of turns and / or the diameter of the turn sections.
- the pivot axis of the pawl can be arranged at least in the main latching position between the pivot axis of the carrier pawl and the grip area of the pawl in the catch.
- a further embodiment variant of the invention results.
- the adaptation of the radii to the geometry of the rotary latch makes it possible that, contrary to the prior art, sliding of the pawl on the rotary latch is no longer possible.
- the pawl has a large radius in the main rest position and a smaller radius in relation to the rolling position in relation to the main rest position. Unrolling ensures that the pawl and rotary latch can be separated gently and therefore with little noise.
- the carrier pawl has a stop which forms a stop surface for the pawl, in particular a buffer element being arranged on the stop in the region of the stop surface.
- the buffer element preferably has a plastic, in particular polyoxymethylene (POM).
- the closing moment when the lock is unlocked with a release lever, the closing moment can be converted into an opening moment.
- the rolling process can be advantageously supported by the combined introduction of a closing and opening moment.
- the closing moment serves to secure the position of the locking system, whereas the opening moment supports the rolling process or the opening of the locking mechanism.
- the release lever To unlock the locking mechanism, the release lever must only initialize the pawl system in such a way that the locking pawl initiates an opening moment in the carrier pawl, which supports easy opening of the locking mechanism.
- the inventive construction of the pawl system and in particular the locking mechanism enables a quiet, safe and low-noise unlocking of a locking mechanism.
- FIG. 1 shows a side view of a locking mechanism with a locking system designed in accordance with the invention in a main locking position
- FIG. 2 shows a ratchet designed according to the invention with a pawl system in a partially unlatched representation
- Figure 3 is a detailed view of a coil spring designed according to the invention for use in the pawl system
- Figure 4 shows an alternative embodiment of a lock or a pawl system with a stop or inertia system in interaction with a pivot axis of the carrier pawl.
- Figure 1 is a side view of a locking device 1 and in particular a locking mechanism 2 with the essential components for explaining the invention played.
- the locking mechanism 2 consisting of rotary latch 3 and pawl system 4, part of the lock case 5, and a damping element 6 is Darge.
- 1 shows the locking device 1 and in particular the locking mechanism 2 in a main latching position, in which the locking mechanism 2 is engaged with a lock holder (not shown), the lock holder being fixable by means of the locking mechanism 2, so that a component secured to the motor vehicle in a pivotally movable manner is secured can be.
- the rotary latch 3 is received in the lock case 5 so as to be pivotable about a pivot axis 7. To open the locking mechanism 2, the rotary latch 3 pivots counterclockwise in the direction of the arrow P. In the main latching position shown in FIG. 1, the rotary latch 3 is locked by means of the pawl system 4 or held in position.
- the pawl system comprises a carrier pawl 8, a pawl 9 and a leg spring 10.
- the carrier pawl has a stop 11 which forms a stop surface 12 for the pawl 9.
- the pawl 9 is thus in the main detent position on the stop surface 12 and the engagement area 13 between the pawl 9 and the catch 3.
- the rotary latch 3 is preferably covered with plastic at least in some areas.
- the stop 11 has a buffer element 22 in the area of the stop surface 12.
- the leg spring 10 encloses the pivot axes 14, 15 of the pawl 8 and the pawl 9.
- the Schenkelfe of 10 is formed in one piece in this embodiment and introduces a first spring force into the Sperrklin ke 9, which is directed counterclockwise in this embodiment.
- the leg spring 10 generates a further force component, which acts on the carrier pawl 8 clockwise in the exemplary embodiment.
- a spring arm 16 of the leg spring 10 bears against a stop surface 17 of the housing or the lock case 5 of the locking device.
- the spring arm 16 is supported against the stop surface 17 and generates a force on the pivot axis 15, so that the carrier pawl 8 can be biased clockwise.
- the leg spring 10 wraps on the one hand the pivot axis 18 of the pawl 8 and at the same time the pivot axis 15 of the pawl 9.
- the leg spring 10 thus generates a counterclockwise torque on the pawl 9 and a clockwise torque in relation to the pawl 8 Regardless of the closing moment that initiates the pawl 9 into the carrier pawl 8, the leg spring 10 consequently stabilizes the position of the pawl system 4.
- the line of force K was also drawn, which introduces through the catch 3 into the pawl 9 and consequently into the carrier pawl 8.
- the rotary latch 3 is due to, for example, a door seal tion pressure or, for example, a flap seal pressure biased in the direction of arrow P.
- An additional surface tension can be introduced into the catch 3 by means of the damping element 6, so that a force in the direction of the opening P of the catch 3 is applied to the pawl 9.
- the design of the Sperrklin kensystems 4 is such that the Kraftlinienver run K starting from the engagement area 13 through the center of the pivot axis 15 of the pawl 9 and eccentrically the central axis of the pivot axis 14 of the carrier pawl 8 is directed.
- the leg spring 10 has a first turn section 23.1 and a second turn section 23.2, the first turn section enclosing the pivot axis of the pawl and the second turn section surrounding the pivot axis of the carrier pawl.
- the locking mechanism 2 is shown in a position in which the pawl system 4 has been moved out of the closing position into an opening position by means of a force F A.
- the force F drawn from the rotary latch 3 along the force line K in FIG. 2 now causes an opening moment in the direction of the carrier pawl 8.
- the pawl 9 rolls over the engagement area 13, so that a noiseless or low-noise Unlocking the lock 2 is possible.
- the leg spring 10 is not shown in FIG. 2 merely for reasons of clarity. Consequently, the force F A introduced into the pawl system 4 by the release lever is only used to convert the pawl system 4 from a generated closing moment into an opening moment.
- the force component F from the rotary latch 3 moves the pawl 9 further in the clockwise direction during the further opening process of the ratchet 2, the carrier pawl 8 being deflected in the counterclockwise direction.
- the force F can be derived from the rotary latch 3 over a large range of motion and consequently the opening cracking noise during the usual tearing off of the pawl 9 from the rotary latch 3 into a continuous rolling of the pawl 9 on the rotary latch 3.
- the tear-off sound or the opening bang can thus be reduced to a minimum or almost completely eliminated.
- leg spring 10 is shown detached from the pawl system 4. It can be seen that the leg spring 10 closes the pawl axis 15 on the one hand and the carrier pawl axis 14 on the other hand several times, or five in this exemplary embodiment Times entwined. Depending on the forces required in the locking system 4, the looping number, the thickness of the leg spring and / or the spring constant of the leg spring 10 can be adjustable.
- the leg spring 10 has at least a first winding section 23.1 and a second winding section 23.2, the first winding section 23.1 enclosing the pivot axis of the pawl and the second winding section 23.2 pivot axis 14 of the carrier pawl.
- the moment can be influenced via the number of turns of the turn sections and / or the diameter of the turn sections.
- a leg spring 10 two, in particular mutually different, moments can be realized. Accordingly, the opening torque and / or the speed of the movement of the pawl in the direction of the stop of the carrier pawl can be influenced via the number of turns and / or the diameter of the turn sections.
- FIG. 4 shows an alternative embodiment of a carrier pawl 18 and a pawl 19.
- the pawl system 20 in turn introduces a closing moment into the carrier pawl 18, as can be seen from the course of the force line K.
- the ratchet system 20 has a pawl 19 which has an extension 21.
- the extension 21 is pressed by the leg spring 10 in the direction of the pivot axis 14 of the support pawl 18. This makes it possible to dispense with a stop surface on the carrier pawl 18. From- leadership form according to the figure thus forms a constructive, simple and inexpensive possibility of an embodiment form of a pawl system 20.
- the mass of the pawl 19 can counteract an impulse from an accident and thus provide an additional securing means for the locking mechanism 2.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018115069.5A DE102018115069A1 (de) | 2018-06-22 | 2018-06-22 | Schließeinrichtung für kraftzahrzeugtechnische Anwendungen |
| PCT/DE2019/100557 WO2019242813A1 (de) | 2018-06-22 | 2019-06-18 | SCHLIEßEINRICHTUNG FÜR KRAFTFAHRZEUGTECHNISCHE ANWENDUNGEN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3810875A1 true EP3810875A1 (de) | 2021-04-28 |
| EP3810875B1 EP3810875B1 (de) | 2024-03-27 |
Family
ID=67137492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19734675.2A Active EP3810875B1 (de) | 2018-06-22 | 2019-06-18 | Schliesseinrichtung für kraftfahrzeugtechnische anwendungen |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3810875B1 (de) |
| DE (1) | DE102018115069A1 (de) |
| WO (1) | WO2019242813A1 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020133537A1 (de) | 2020-12-15 | 2022-06-15 | Brose Schließsysteme GmbH & Co. Kommanditgesellschaft | Kraftfahrzeugschloss |
| DE102021127455A1 (de) | 2021-10-22 | 2023-04-27 | Kiekert Aktiengesellschaft | Kraftfahrzeug-Schloss insbesondere Kraftfahrzeug-Türschloss |
| DE102022121798A1 (de) | 2022-08-29 | 2024-02-29 | Brose Schließsysteme GmbH & Co. Kommanditgesellschaft | Kraftfahrzeugschloss |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007003948A1 (de) | 2006-11-22 | 2008-05-29 | Kiekert Ag | Schlosseinheit mit mehrteiliger Sperrklinke |
| DE102007055412A1 (de) | 2006-12-08 | 2008-06-12 | Kiekert Ag | Geräuscharme Schließvorrichtung für ein Kraftfahrzeug |
| DE102009029031A1 (de) | 2009-08-31 | 2011-03-03 | Kiekert Ag | Gesperre |
| DE102009029023A1 (de) | 2009-08-31 | 2011-03-03 | Kiekert Ag | Kraftfahrzeugschloss |
| ITTO20130781A1 (it) * | 2013-09-30 | 2015-03-31 | Magna Closures Spa | Serratura per una porta di un autoveicolo |
| DE102014006118A1 (de) | 2014-04-29 | 2015-10-29 | Kiekert Aktiengesellschaft | Kraftfahrzeugschloss |
| KR101876000B1 (ko) * | 2015-11-03 | 2018-07-06 | 현대자동차주식회사 | 차량의 래치 어셈블리 |
-
2018
- 2018-06-22 DE DE102018115069.5A patent/DE102018115069A1/de not_active Withdrawn
-
2019
- 2019-06-18 EP EP19734675.2A patent/EP3810875B1/de active Active
- 2019-06-18 WO PCT/DE2019/100557 patent/WO2019242813A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019242813A1 (de) | 2019-12-26 |
| DE102018115069A1 (de) | 2019-12-24 |
| EP3810875B1 (de) | 2024-03-27 |
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