EP4652345A1 - Kraftfahrzeug-schloss - Google Patents
Kraftfahrzeug-schlossInfo
- Publication number
- EP4652345A1 EP4652345A1 EP23813278.1A EP23813278A EP4652345A1 EP 4652345 A1 EP4652345 A1 EP 4652345A1 EP 23813278 A EP23813278 A EP 23813278A EP 4652345 A1 EP4652345 A1 EP 4652345A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor vehicle
- lock
- wing
- vehicle lock
- reinforcing element
- 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
- E05B77/02—Vehicle locks characterised by special functions or purposes for accident situations
- E05B77/10—Allowing opening in case of deformed bodywork, e.g. by preventing deformation of lock parts
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B79/00—Mounting or connecting vehicle locks or parts thereof
- E05B79/02—Mounting of vehicle locks or parts thereof
- E05B79/04—Mounting of lock casings to the vehicle, e.g. to 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
-
- 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
- E05B85/02—Lock casings
Definitions
- the invention relates to a motor vehicle lock, in particular a motor vehicle tailgate lock, with a locking mechanism consisting essentially of a rotary latch and a pawl, and with an additional reinforcing element which couples at least both axes of rotation of the rotary latch on the one hand and the pawl on the other hand at a distance to one another to form a lock case.
- the reinforcement element ensures that crash safety is improved in particular and that malfunctions are reliably avoided with a simple design. This is because such crash situations usually correspond to the locking mechanism making or being able to make an unintentional opening movement. As a result, there is a possibility that a motor vehicle door that was previously caught by the lock holder may accidentally spring open and no longer protect the occupants of the motor vehicle.
- the safety features provided for this purpose such as side airbags, side impact protection, etc.
- the vehicle door in question can no longer contribute to stiffening the body. Accordingly, it must be ensured, particularly in the event of a crash, that the locking mechanism consisting of the rotary latch and pawl still holds the lock holder or a locking bracket provided at this point properly.
- the reinforcing element is typically a reinforcing plate that is coplanar to the Bearing level of the locking mechanism.
- the reinforcement plate and the bearing level for the locking mechanism in conjunction with the bearing bolts defining the respective axis of rotation, define a supporting structure with a rectangular cross-section.
- motor vehicle door is to be interpreted broadly, so that it does not only include, for example, motor vehicle side doors or motor vehicle tailgates. Rather, the term motor vehicle door generally also includes motor vehicle hoods within the scope of the invention, but also motor vehicle fuel caps, motor vehicle loading lids or any other motor vehicle flaps in or on an associated motor vehicle.
- the reinforcing element which is typically designed as a reinforcing plate, ultimately provides the stiffening of the lock case and the bearing bolts that define the axes of rotation. This defines the supporting structure mentioned above. This means that any forces absorbed by the reinforcing element are ultimately introduced into the vehicle door via the bearing bolts and the lock case when the lock case is screwed to the vehicle door. The same naturally applies if the lock case is attached to a vehicle body, which is also possible. In this case, the associated vehicle door has the lock holder that interacts with the vehicle lock.
- the invention is based on the technical problem of further developing such a motor vehicle lock and in particular a motor vehicle tailgate lock in such a way that the introduction of force into the motor vehicle door or motor vehicle body is improved, in particular in the event of a crash.
- the invention proposes in a generic motor vehicle lock that the reinforcing element not only couples the two axes of rotation of the rotary latch on the one hand and the pawl on the other hand at a minimum distance from the lock case, but is additionally connected to a door leaf or a body component.
- the reinforcing element not only ensures that the lock case or the rotation axes of the locking mechanism, which are typically defined by means of bearing bolts, are stiffened.
- the reinforcing element also ensures a connection to the door leaf or a body component.
- the first case corresponds to the fact that the motor vehicle lock according to the invention is fastened in or to a motor vehicle door.
- the reinforcing element not only stiffens the bearing bolts defining the rotation axes of the locking mechanism and thus the lock case.
- the reinforcing element also ensures that the door leaf is ultimately coupled to the lock case, namely in addition to the already intended fixing of the lock case to the relevant door leaf.
- any forces on the locking mechanism are not only introduced into the door leaf via the lock case with reinforcement by the reinforcing element, but also directly into the relevant door leaf via the reinforcing element.
- This additionally reinforces the door leaf in the area where the lock case is attached, and thus also the motor vehicle lock itself, so that functional impairments of the locking mechanism inside the motor vehicle lock are avoided even in the event of a crash.
- the reinforcing element in addition to its stiffening function with regard to the lock case and the bearing bolts, is alternatively supported on a body component or is connected to such a body component.
- the body component can be a frame of the vehicle body that accommodates the associated motor vehicle door.
- the reinforcing element still ensures the stiffening of the lock case and the bearing bolts of the locking mechanism mounted in the lock case on the one hand and also ensures that forces acting on the locking mechanism on the other hand and additionally are introduced directly into the body via the reinforcing element.
- the reinforcement element is provided with a locking plate arranged predominantly parallel to the lock case and a with the door leaf or the bodywork component connected wing hood.
- the reinforcing element is essentially made up of two different functional elements, namely the locking plate on the one hand and the wing hood on the other.
- the locking plate typically ensures the stiffening of the lock case by creating a rectangular supporting structure between the locking plate in question, the bearing bolts and the lock case, which runs predominantly parallel to it, comparable to the previously described state of the art according to DE 20 2012 007 326 U1
- the wing hood has the additional function of supporting or coupling the reinforcing element directly to the door leaf or the bodywork component.
- the wing hood is usually convexly curved in the closing direction of the associated motor vehicle door. Since the motor vehicle door is equipped with a door wing, the closing direction of the door wing corresponds to its closing direction. If a crash occurs in such a case, the motor vehicle door in question is usually subjected to additional stress in this closing direction, particularly if it is a tailgate. This means that forces associated with the crash situation and predominantly in the closing direction can be absorbed particularly effectively by the wing hood, which is convexly curved in this direction and connected directly to the door wing.
- the wing hood is generally equipped with three wing arms, each of which runs predominantly at right angles to one another.
- the middle wing arm is designed with a longitudinal slot.
- the middle wing arm in question or the longitudinal slot created at this point typically has lateral reinforcing ribs.
- the design is usually such that the middle wing arm with the longitudinal slot is additionally arched upwards like ribs compared to the two side wing arms.
- the previously mentioned reinforcing ribs are typically connected to the longitudinal slot, namely at the edge in its longitudinal direction.
- the wing cover is convexly curved in the closing direction. If any crash forces act on the motor vehicle lock according to the invention in this closing direction, these are primarily absorbed by the wing cover in question and here in particular the middle wing arm with the longitudinal slot. As a result, the longitudinal slot can open due to deformation.
- the two reinforcing ribs connected to the longitudinal slot on the edge in the longitudinal direction ensure that the opening of the longitudinal slot is predominantly symmetrical to an imaginary line of symmetry and, moreover, the reinforcing ribs prevent any deformation of the middle wing arm as well as possible shearing.
- the middle wing arm in conjunction with the two side wing arms ensures that the force associated with the crash is further absorbed by the locking plate connected to the wing hood or integral with it and is passed on via the bearing bolts, the lock case and finally into the lock holder caught by the locking mechanism and thus to the body.
- the door leaf is designed to be particularly rigid at this point, which also prevents any deformation of the locking mechanism from being observed in the event of a crash, which could allow the door leaf or the associated vehicle door or vehicle tailgate to be opened unintentionally.
- the longitudinal slot ends in a cross-section at the end. This allows for particularly effective deformations and, in particular, arching of the middle wing arm with the central longitudinal slot and the side reinforcing ribs. Further reinforcing measures are provided in such a way that additional reinforcing ribs are implemented in addition to the reinforcing ribs running along the edge of the longitudinal slot.
- Additional reinforcing ribs can be provided on the edge of the reinforcing hood in the area of the two side wing arms. These additional reinforcing ribs are usually found at least in the associated fastening areas with the help of which the two side wing arms are attached to the door leaf.
- the invention also relates to a motor vehicle lock arrangement with a door leaf and a motor vehicle lock of the construction described above.
- a body-side lock holder is provided in this context.
- the motor vehicle lock arrangement according to the invention has a front cover for the motor vehicle lock and a hood-side receptacle for the lock holder.
- the design is such that the cover and the hood, as part of the hood-side receptacle, engage with one another when closed.
- the cover and the hood in question can each be designed as plastic injection-molded parts.
- Fig. 1 the motor vehicle lock according to the invention in a perspective overview
- Fig. 2 the motor vehicle lock arrangement according to the invention with its individual parts.
- the figures show a motor vehicle lock which, according to the embodiment, is designed as a motor vehicle tailgate lock.
- the motor vehicle tailgate lock in question is located inside a motor vehicle tailgate with a door leaf 1.
- the motor vehicle lock in question interacts with a body-side lock holder 2 which is only partially visible in Fig. 1 and which is shown in full in Fig. 2.
- the motor vehicle lock which will be described in more detail below, can also be attached to a motor vehicle body or body 3, whereas the lock holder 2 is located on the door leaf 1. However, this is not shown.
- the motor vehicle lock has a locking mechanism 4, 5 consisting essentially of a rotary latch 4 and a pawl 5. These can be seen best in the illustration in Fig. 2.
- the locking mechanism components 4, 5 in question, i.e. the rotary latch 4 and the pawl 5, are rotatably mounted in a metal lock case 6.
- Bearing bolts 7, 8 ensure the rotatable mounting.
- the bearing bolt 7, which rotatably mounts the rotary latch 4 defines the axis of rotation of the rotary latch 4.
- the bearing bolt 8 ensures that the pawl 5 is rotatably mounted in the lock case 6 and an associated axis of rotation is observed.
- Both bearing bolts 7, 8 are fixed on the one hand in the metal lock case 6 and on the other hand in an additional reinforcing element 9.
- both bearing bolts 7, 8 can be riveted in the relevant lock case 6 or the reinforcing element 9 or otherwise connected to the relevant metal structural component 6, 9.
- the reinforcing element 9 ensures that the two axes of rotation of the rotary latch 4 on the one hand and the pawl 5 on the other hand are coupled to one another at a distance from the lock case 6.
- the reinforcing element 9 defines at least in sections a rectangular supporting structure which consists of the metallic reinforcing element 9, the metallic lock case 6 which is at least partially parallel to it, and the two bearing bolts 7, 8 connected to it.
- the reinforcing element 9 is additionally connected to the door leaf 1 or a body component. This means that the reinforcing element 9 ensures, on the one hand, that the two bearing bolts 7, 8 of the rotary latch 4 and the pawl 5 are coupled to the lock case 6. On the other hand, the reinforcing element 9 also ensures a direct coupling to the door leaf 1. If the motor vehicle lock shown is attached in or to the body 3, the reinforcing element 9 alternatively couples the two bearing bolts 7, 8 and the lock case 6 to the body 3 in question.
- the reinforcing element 9 ensures an additional force-fitting connection not only of the lock case 6 with the bearing bolts 7, 8, but also that the lock case 6 is additionally connected to the door leaf 1 via the reinforcing element 9.
- the invention is based on the knowledge that the lock case 6 is directly connected to the door leaf 1 in question, for example screwed, and is also indirectly connected to the door leaf 1 at another point via the reinforcing element 9. This can again be done via a screw connection on corresponding fastening areas 9a of the reinforcing element 9.
- the invention is based on the further finding that the door leaf 1 of the motor vehicle tailgate realized at this point is largely rectangular or approximately rectangular in the edge area in the area where the motor vehicle lock in question is attached.
- the metal lock case 6 is mainly connected to a horizontal or largely horizontal leg 1a of the door leaf 1, whereas the fastening areas 9a of the reinforcing element 9 have a Connection with the other leg 1 b of the door leaf 1 which runs vertically or largely vertically.
- the reinforcing element 9 not only ensures that the two bearing bolts 7, 8 of the locking components 4, 5 are additionally stiffened with the lock case 6.
- the reinforcing element 9 also provides additional stiffening of the door leaf 1 in the edge area or in the fastening area of the motor vehicle lock, because the reinforcing element 9 additionally couples the largely horizontal leg 1a of the door leaf 1 on the one hand and the vertical or largely vertical leg of the door leaf 1 on the other. This means that the reinforcing element 9 runs like a kind of diagonal cross member between the two legs 1a, 1b. This additionally stiffens the door leaf 1 in this area.
- the reinforcing element 9 has a locking plate 9b which is arranged and runs predominantly parallel to the lock case 6.
- the locking plate 9b in conjunction with the bearing bolts 7, 8 fixed to the locking plate 9b of the rotary latch 4 on the one hand and the pawl 5 on the other hand in conjunction with the lock case 6, ensures the rectangular supporting structure realized at this point, which ensures the stiffening of the lock case 6 and the locking mechanism 4, 5 comparable to the state of the art according to DE 20 2012 007 326 U1.
- the reinforcing element 9 is equipped with a wing cover 9c connected to the door leaf 1 according to the embodiment. This wing cover 9c ultimately ensures the previously described stiffening of the corner area between the two legs 1 a, 1 b of the door leaf 1.
- the wing hood 9c is equipped with three wing arms 10, 11, each of which runs predominantly at right angles to one another.
- Two lateral wing arms 10 and a central wing arm 11 are implemented.
- the central wing arm 11 is designed with longitudinal slots and for this purpose has a longitudinal slot 12.
- the longitudinal slot 12 in turn has lateral reinforcing ribs 13.
- two reinforcing ribs 13 are provided, each of which is connected to the longitudinal slot 12 at the edge and which delimit the longitudinal slot 12 at the edge in its longitudinal extension or run longitudinally along the edges of the longitudinal slot 12.
- the middle wing arm 11 is arched upwards like ribs compared to the two lateral wing arms 10.
- the longitudinal slot 12 in turn merges into transverse slots 14 at the end.
- the longitudinal slot 12 expands predominantly symmetrically in comparison to a central plane of symmetry.
- the expansion takes place in a controlled and non-twisting manner, which is ensured by the lateral reinforcing ribs 13.
- this deformation of the central wing arm 11 in the area of the longitudinal slot 12 is permitted by the respective transverse slots 14 at the end of the longitudinal slot 12.
- This can essentially be attributed to the fact that forces associated with such a crash regularly run in the closing direction of the door leaf 1. For this purpose, corresponding forces are indicated in Fig. 2 by an arrow F.
- the locking plate 9b can still ensure that the bearing bolts 7, 8 of the rotary latch 4 on the one hand and the pawl 5 on the other hand remain in place and the desired Reinforcement compared to the lock plate 6. Any unintentional opening of the locking mechanism 4, 5 can thus be excluded.
- reinforcing ribs 15 are provided on the edge of the reinforcing hood 9, at least in the fastening areas 9a. These additional reinforcing ribs 15 ensure that the fastening areas 9a of the wing hood 9 do not deform, or do not deform significantly, even in the event of a crash and, in particular, that the wing hood 9 cannot tear off. This is where the main advantages lie.
- the illustration in Fig. 2 also shows a motor vehicle lock arrangement which, in addition to the door leaf 1 and the motor vehicle lock already described, also shows the body-side lock holder 2 separately from it.
- the motor vehicle lock arrangement has a front cover 16 of the motor vehicle lock which is pushed on from the front via an inlet mouth 17 with the two locking components 4, 5.
- the front cover 16 in question corresponds to a hood 18 which surrounds the lock holder 2 fastened to the body 3.
- the cover 16 engages in the hood 18, largely or at least predominantly in a form-fitting manner. This additionally centers the motor vehicle lock relative to the motor vehicle body 3 and guides the motor vehicle tailgate during the closing process.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023100960.5A DE102023100960A1 (de) | 2023-01-17 | 2023-01-17 | Kraftfahrzeug-Schloss |
| PCT/DE2023/100874 WO2024153278A1 (de) | 2023-01-17 | 2023-11-14 | Kraftfahrzeug-schloss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4652345A1 true EP4652345A1 (de) | 2025-11-26 |
Family
ID=88969513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23813278.1A Pending EP4652345A1 (de) | 2023-01-17 | 2023-11-14 | Kraftfahrzeug-schloss |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4652345A1 (de) |
| CN (1) | CN120604015A (de) |
| DE (1) | DE102023100960A1 (de) |
| WO (1) | WO2024153278A1 (de) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2552204B2 (ja) * | 1991-03-26 | 1996-11-06 | 三井金属鉱業株式会社 | トランク扉用ロック装置のフレーム |
| DE10212217B4 (de) * | 2002-03-19 | 2005-11-17 | Siemens Ag | Türschloss |
| US8727403B2 (en) * | 2008-03-27 | 2014-05-20 | Illinois Tool Works Inc. | Lid securing assembly |
| DE202012007326U1 (de) | 2012-07-31 | 2013-11-04 | Kiekert Aktiengesellschaft | Kraftfahrzeugtürschloss |
| EP3356623B1 (de) * | 2014-12-18 | 2019-11-27 | Kiekert AG | Kraftfahrzeugschloss |
| JP6447169B2 (ja) * | 2015-01-23 | 2019-01-09 | 株式会社アンセイ | 車両用ロック装置 |
| JP6507416B2 (ja) * | 2015-10-24 | 2019-05-08 | 三井金属アクト株式会社 | 車両バックドア用ラッチ装置 |
-
2023
- 2023-01-17 DE DE102023100960.5A patent/DE102023100960A1/de active Pending
- 2023-11-14 EP EP23813278.1A patent/EP4652345A1/de active Pending
- 2023-11-14 WO PCT/DE2023/100874 patent/WO2024153278A1/de not_active Ceased
- 2023-11-14 CN CN202380091376.5A patent/CN120604015A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024153278A1 (de) | 2024-07-25 |
| DE102023100960A1 (de) | 2024-07-18 |
| CN120604015A (zh) | 2025-09-05 |
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Legal Events
| Date | Code | Title | Description |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 17P | Request for examination filed |
Effective date: 20250714 |
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| AK | Designated contracting states |
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| 19U | Interruption of proceedings before grant |
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| 19W | Proceedings resumed before grant after interruption of proceedings |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) |