EP4532871A1 - KRAFTFAHRZEUG-SCHLIEßEINRICHTUNG - Google Patents
KRAFTFAHRZEUG-SCHLIEßEINRICHTUNGInfo
- Publication number
- EP4532871A1 EP4532871A1 EP23728586.1A EP23728586A EP4532871A1 EP 4532871 A1 EP4532871 A1 EP 4532871A1 EP 23728586 A EP23728586 A EP 23728586A EP 4532871 A1 EP4532871 A1 EP 4532871A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- leg
- motor vehicle
- ejector lever
- spring
- 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.)
- Withdrawn
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
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B17/00—Accessories in connection with locks
- E05B17/0025—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing
- E05B17/0033—Devices for forcing the wing firmly against its seat or to initiate the opening of the wing for opening only
- E05B17/0037—Spring-operated
-
- 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
- E05B83/24—Locks for luggage compartments, car boot lids or car bonnets for car bonnets
- E05B83/243—Hood clamps, i.e. individually actuated, usually yielding hooks
-
- 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
- E05B2015/0403—Wound springs
- E05B2015/0406—Wound springs wound in a cylindrical shape
- E05B2015/041—Wound springs wound in a cylindrical shape loaded perpendicular to cylinder axis
Definitions
- the invention relates to a motor vehicle locking device, in particular a motor vehicle lock, preferably a motor vehicle hood lock, with a locking mechanism consisting essentially of a rotary latch and a pawl, and with an ejector lever preloaded by a spring for acting on a locking bolt which interacts with the locking mechanism.
- a motor vehicle lock preferably a motor vehicle hood lock
- a locking mechanism consisting essentially of a rotary latch and a pawl
- an ejector lever preloaded by a spring for acting on a locking bolt which interacts with the locking mechanism.
- Motor vehicle locking devices generally face the problem that rattling noises can be present during operation of the motor vehicle. These can often be attributed to the fact that a hood, a lid, a door, a flap, etc., which is secured against a motor vehicle body using the motor vehicle locking device, performs relative movements compared to the motor vehicle body in question during operation. For this reason, motor vehicle locks and preferably motor vehicle hood locks work in such a way that the ejector lever acts on the locking bolt. This is ensured by the spring, which preloads the ejector lever accordingly.
- the procedure is such that the ejector lever, which is preloaded with the help of the spring, rests on the underside of the locking bolt and puts it in a clamping position.
- the locking bolt is located in an inlet mouth of the rotary latch. Since the locking bolt has a certain amount of play relative to the inlet mouth, when the locking mechanism is in the closed position, the ejector lever, which is preloaded with the help of the spring, ensures that the locking bolt is held in the clamping position within the inlet mouth.
- the locking bolt typically rests on a catch leg of the rotary latch.
- the design is usually such that the rotary latch has the relevant catch leg and a stop leg, which define the inlet mouth between them.
- the locking bolt can now be placed on one of the two legs inside the inlet mouth, taking into account the spring force on the ejector lever. This is usually the catch leg. In any case, this ensures, particularly in the closed position of the locking mechanism, that relative movements observed during operation of the motor vehicle locking device between the locking bolt and the rotary latch or the locking mechanism or also inside the inlet mouth are no longer observed.
- the generic state of the art according to DE 10 2006 002 338 A1 proceeds at this point in such a way that a so-called lifting part is implemented as an ejector lever.
- the lifting part is acted upon using an energy accumulator and a front flap on the locking bolt is moved into a raised position in this way.
- the energy storage can be leaf springs lying one above the other. These attack the lifting part or ejector lever from the outside.
- This is relatively complex in terms of assembly because, on the one hand, the leaf springs have to be mounted inside a housing that accommodates the motor vehicle locking device and, on the other hand, the lifting part or the ejector lever in addition to other elements of the motor vehicle locking device.
- the use of the additionally provided leaf springs in conjunction with the lifting part or ejector lever leads to a relatively expansive structure.
- a generic motor vehicle locking device within the scope of the invention is characterized in that the spring biasing the ejector lever is designed as a leg spring, which is fixed to a bearing dome defining an axis of the ejector lever.
- a special spring is first used, namely a leg spring with a winding section and two legs extending from it.
- the leg spring in question is attached to a bearing dome.
- the bearing dome is used to define an axis or axis of rotation of the ejector lever.
- the leg spring can be used to prevent any rattling noises, for example from a hood or flap.
- the procedure is usually such that the leg spring encloses the bearing mandrel in question with its winding section.
- the leg spring is designed so that its loose leg acts on the ejector lever, while its fixed leg is fixed to the housing of the motor vehicle locking device.
- the loose leg of the leg spring can therefore move together with the ejector lever and ensures the spring-loaded contact of the ejector lever on the locking bolt.
- the ejector lever rests on a lower edge or an arch on the underside of the locking bolt.
- the locking bolt is in turn fixed to a hood or flap.
- the leg spring ensures that when the locking mechanism is in the closed position, the locking bolt inside the inlet mouth is pressed against one of the two legs of the rotary latch using the spring-loaded ejector lever.
- This leg is usually the catching leg of the rotary trap. This effectively suppresses any rattling noises from the relevant hood or flap during operation from the outset.
- the locking bolt usually rests with its lower edge or its arch on the relevant contact edge of the ejector lever.
- the contact edge of the ejector lever is in turn gripped under by the loose leg as part of the leg spring.
- the loose leg of the leg spring can directly act on the contact edge of the ejector lever and thus the locking bolt.
- the fixed leg generally engages in a locking manner in an opening in the housing. That is, in the end, the fixed leg also ensures the locking connection of the structural unit consisting of the leg spring together with the bearing dome and the ejector lever on the housing.
- the ejector lever is usually designed as a two-arm lever, which has the contact edge for the locking bolt on one lever arm and has a connection on its other, opposite lever arm for, for example, manual or motor-driven additional loading.
- This double-armed, more or less stretched or obtuse-angled design of the ejector lever is also reflected in this again that the leg spring is also designed at an obtuse angle, following the design of the ejector lever.
- the apex of the obtuse angle which is enclosed by the two legs, is arranged in the area of a highest point of the winding section in the installed position. That is, as soon as the motor vehicle locking device is mounted in an associated motor vehicle or on an associated motor vehicle, the apex in question is located at the highest of the winding section. This highest point usually occurs in a so-called vertical axis direction or Z direction. This allows the fixed leg to engage particularly easily in the opening of the housing.
- the opening in question is usually located on a short L-leg of the usually L-shaped housing or a lock case that is usually implemented at this point.
- the apex or the highest point of the winding section is arranged in the immediate vicinity of the short L-leg of the housing.
- the leg spring attached to the bearing mandrel is additionally secured inside the housing because the winding section cannot be removed from the bearing mandrel or becomes detached.
- a motor vehicle locking device which has a particularly compact design, is easy to assemble and at the same time prevents any rattling noises from a front hood, tailgate or general flap or door on a motor vehicle equipped with it.
- this can be attributed to the special leg spring that acts on the ejector lever and its design.
- the torsion spring is, as it were, taken up as a component of a locking connection of the structural unit consisting of torsion spring, bearing dome and ejector lever that is realized at this point and can also be detached.
- the locking connection between, on the one hand, the fixed leg of the leg spring and, on the other hand, the opening in the housing of the motor vehicle locking device is observed. This is where the main advantages can be seen.
- the ejector lever 7 is pretensioned so that the locking bolt 3 inside the inlet mouth according to the exemplary embodiment is held in contact with the catch leg 4b, so that any rattling noises or relative movements of the locking bolt 3 inside the inlet mouth of the rotary latch 4 between the stop leg 4a and catch leg 4b are suppressed. This is indicated schematically by an arrow in FIG.
- the lock case 10 is L-shaped with a long L-leg 10a and a short L-leg 10b. Both the locking mechanism 4, 5 and the ejector lever 7 are mounted on the long L-leg 10a of the lock case 10. In contrast, the short L-leg 10b typically and predominantly ensures that the lock case 10 is stiffened.
- the overall design is such that in the installation position of the motor vehicle locking device or the motor vehicle hood lock 1 shown in FIG. Leg 10a is largely aligned in cross section in a vertical axis or Z direction of the motor vehicle and extends in the longitudinal direction in a vehicle transverse direction or Y direction.
- the short L-leg 10b of the lock case 10 is designed in its longitudinal extent in the relevant Y direction or transverse direction, and its width extends in the longitudinal direction or X direction, which is in the Fig. 1 is not expressly shown but is merely indicated by a point.
- the motor vehicle locking device in question can generally also be oriented and arranged with the longitudinal extent of the lock case 10 in the longitudinal direction or X direction of the motor vehicle.
- two motor vehicle locking devices are each implemented on both sides of a hood or front hood 2.
- this is not reflected in detail.
- the spring 6 already mentioned and acting on the ejector lever 7 is designed as a leg spring 6 according to the exemplary embodiment.
- the leg spring 6 is also fixed to the bearing mandrel 8 defining the axis of the ejector lever 7.
- the design is such that the leg spring 6 in question encloses the bearing dome 8 with its winding section 6a.
- the winding section 6a encloses the bearing dome 8 in question at a distance, so that between the two legs 6b and 6c emanating from the winding section 6a, movements can easily be transferred to the winding section 6a while reducing or expanding its diameter.
- the loose leg 6b engages under the previously mentioned contact edge 7a of the ejector lever 7 for the locking bolt 3 resting thereon.
- the fixed leg 6c engages Leg spring 6 snaps into an opening 11 in the housing 10 or the lock case 10.
- the opening 11 is provided and implemented in the short L-leg 10b of the L-shaped lock case 10.
- the two legs 6b, 6c of the leg spring 6 adjoining the winding section 6a enclose an obtuse angle a between them.
- Both legs 6b, 6c start from a vertex S of the relevant angle a.
- the obtuse angle a between the two legs 6b, 6c is designed to be comparable to an obtuse angle between two lever arms of the ejector lever 7.
- the ejector lever 7 is equipped with a lever arm touching the contact edge 7a and a further lever arm 7b, which is in a comparable manner to that
- the two legs 6b, 6c of the leg spring 6 enclose an obtuse angle between them.
- a handle or a drive may or may not be connected to the other arm 7b of the ejector lever 7.
- the leg spring 6, the bearing dome 8 and the ejector lever 7 can define a structural unit 6, 7, 8.
- the structural unit 6, 7, 8 can be fixed together and as a whole as well as locking on the housing 10 and specifically on the lock case 10 according to the exemplary embodiment.
- a locking connection 6c, 11 is realized, which specifically includes the fixed leg 6c of the leg spring 6 on the one hand and the opening 11 in the lock case 10 on the other hand.
- the pawl 5, which is mounted on the bearing dome 8 on the same axis as the structural unit 6, 7, 8, is fixed in the lock case 10 at the same time.
- the locking connection can of course also be designed differently.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022114137.3A DE102022114137A1 (de) | 2022-06-03 | 2022-06-03 | Kraftfahrzeug-Schließvorrichtung |
| PCT/DE2023/100373 WO2023232187A1 (de) | 2022-06-03 | 2023-05-23 | KRAFTFAHRZEUG-SCHLIEßEINRICHTUNG |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4532871A1 true EP4532871A1 (de) | 2025-04-09 |
Family
ID=86693088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23728586.1A Withdrawn EP4532871A1 (de) | 2022-06-03 | 2023-05-23 | KRAFTFAHRZEUG-SCHLIEßEINRICHTUNG |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20250333985A1 (de) |
| EP (1) | EP4532871A1 (de) |
| CN (1) | CN119317758A (de) |
| DE (1) | DE102022114137A1 (de) |
| WO (1) | WO2023232187A1 (de) |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4961601A (en) * | 1988-08-29 | 1990-10-09 | General Motors Corporation | Vehicle closure latch and pop-up device |
| US5618069A (en) * | 1995-07-21 | 1997-04-08 | General Motors Corporation | Hood and decklid latch assemblies |
| KR100633639B1 (ko) * | 2004-06-22 | 2006-10-12 | 현대자동차주식회사 | 후드 래치어셈블리의 세이프티 레버 작동구조 |
| DE102006002338A1 (de) | 2006-01-18 | 2007-07-19 | Witte-Velbert Gmbh & Co. Kg | Beschlag für eine Frontklappe eines Kraftfahrzeuges |
| DE102008005273A1 (de) * | 2008-01-19 | 2009-07-23 | Volkswagen Ag | Frontklappensicherheitsschließsystem mit separater Fanghakensteuerung |
| DE102010025355B4 (de) * | 2010-06-28 | 2014-11-13 | Audi Ag | Schlossvorrichtung für ein Kraftfahrzeug |
| DE102010037937A1 (de) | 2010-10-04 | 2012-04-05 | Kirchhoff Gmbh & Co. Kg | Kraftfahrzeugschloss |
| DE102010061518B4 (de) | 2010-12-23 | 2022-03-24 | Witte Automotive Gmbh | Frontklappenschloss |
| US9027971B2 (en) * | 2011-01-26 | 2015-05-12 | Magna Closures Inc. | Over travel hood latch |
| US9145716B2 (en) * | 2012-05-09 | 2015-09-29 | Ford Global Technologies, Llc | Deployable hood latch for pedestrian head protection |
| KR101382913B1 (ko) * | 2012-09-05 | 2014-04-08 | 기아자동차주식회사 | 자동차용 2단 링크 후드 래치 장치 |
| CN105228883B (zh) * | 2013-05-23 | 2018-06-08 | 麦格纳覆盖件有限公司 | 用于主动式行人安全闩锁的机械辅助机构 |
| KR101491298B1 (ko) * | 2013-08-20 | 2015-02-06 | 현대자동차주식회사 | 자동차의 액티브 후드 래치 장치 |
| US9840858B2 (en) * | 2014-05-29 | 2017-12-12 | Ford Global Technologies, Llc | Deployable hood release handle |
| DE102014109111A1 (de) * | 2014-06-30 | 2015-12-31 | Kiekert Ag | Haubenschloss mit Steuerscheibe |
| DE102015122583A1 (de) | 2015-12-22 | 2017-06-22 | Kiekert Ag | Sicherheitsvorrichtung für ein Kraftfahrzeug mit einer Drehfalle und einer Auswurffeder |
| IT201900024433A1 (it) * | 2019-12-18 | 2021-06-18 | Cebi Italy Spa | Serratura double pull per veicolo. |
-
2022
- 2022-06-03 DE DE102022114137.3A patent/DE102022114137A1/de active Pending
-
2023
- 2023-05-23 EP EP23728586.1A patent/EP4532871A1/de not_active Withdrawn
- 2023-05-23 CN CN202380044733.2A patent/CN119317758A/zh active Pending
- 2023-05-23 US US18/869,363 patent/US20250333985A1/en active Pending
- 2023-05-23 WO PCT/DE2023/100373 patent/WO2023232187A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022114137A1 (de) | 2023-12-14 |
| US20250333985A1 (en) | 2025-10-30 |
| CN119317758A (zh) | 2025-01-14 |
| WO2023232187A1 (de) | 2023-12-07 |
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| DAX | Request for extension of the european patent (deleted) | ||
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