EP4544134A1 - KRAFTFAHRZEUG-SCHLIEßEINRICHTUNG - Google Patents
KRAFTFAHRZEUG-SCHLIEßEINRICHTUNGInfo
- Publication number
- EP4544134A1 EP4544134A1 EP23728259.5A EP23728259A EP4544134A1 EP 4544134 A1 EP4544134 A1 EP 4544134A1 EP 23728259 A EP23728259 A EP 23728259A EP 4544134 A1 EP4544134 A1 EP 4544134A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- core element
- plastic sleeve
- motor vehicle
- locking
- ribs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B77/00—Vehicle locks characterised by special functions or purposes
- E05B77/36—Noise prevention; Anti-rattling means
-
- 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
- E05B79/08—Mounting of individual lock elements in the lock, e.g. levers
-
- 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
- E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
- E05B15/16—Use of special materials for parts of locks
- E05B15/1635—Use of special materials for parts of locks of plastics materials
Definitions
- the invention relates to a motor vehicle locking device, in particular a motor vehicle lock and preferably a motor vehicle hood lock, with a lock case for storing a locking mechanism consisting essentially of a rotary latch and a pawl, further with an actuating lever mechanism, for example for interacting with the locking mechanism, further with at least one im Lock case fixed step dome for supporting the locking mechanism and / or the actuating lever mechanism, and with a spring element arranged on the step mandrel, the step dome being formed in two parts with a metallic core element and a plastic sleeve on the outer circumference.
- Motor vehicle locking devices and in particular motor vehicle hood locks are known in different variations and forms, for which reference should only be made to the applicant's DE 10 2019 128 463 A1 as an example.
- a front hood or a tailgate on a motor vehicle is typically closed.
- such motor vehicle hood locks are often equipped with electric drives, for example to unlock the motor vehicle lock in question.
- the actuating lever mechanism has one or more locking levers that can be transferred to their unlocked state using the electric drive.
- the associated hood After unlocking such a motor vehicle hood lock, the associated hood typically opens slightly due to spring forces built up by a circumferential seal. In most cases, an additional setting-up device or an ejector lever is implemented for this purpose, which ensures that the hood is moved into its lifting position after the locking mechanism has been opened. From this lifting position, the hood can easily be lifted by a user through a gap created between the hood and the body be grabbed and swung open. In most cases, a catch hook often has to be swung away at this point.
- the procedure is such that the locking bolt on the hood is brought into a lifting position using the ejector or ejector lever.
- a closing drive is also implemented, with the help of which the locking bolt can be transferred from the lifting position into a closing position.
- a drive lever is provided, which actuates the ejector or ejector lever and at least indirectly the rotary latch.
- the procedure for a motor vehicle lock and in particular a locking device for a motor vehicle door is such that a latch pin or stepped dome is realized, on which a latch or pawl is rotatably arranged .
- the stepped dome not only has a mounted collar and a flange, but is also provided with a synthetic resin bushing for contact with a lever mounted on it with the metallic part of the stepped mandrel and thereby avoid unpleasant noises. This has basically proven itself.
- the invention is based on the technical problem of further developing such a motor vehicle locking device in such a way that, while taking into account a cost-effective and functional structure, there is also the possibility of storing locking elements.
- a generic motor vehicle locking device is characterized in that the plastic sleeve is attached to the core element.
- the invention initially works with a metallic core element, which is anchored in the lock case and is therefore able to absorb high tearing forces.
- high tearing forces are usually observed on the locking mechanism and can result in the step dome being torn out of the lock case to support the relevant locking element. This is largely prevented by the metallic core element of the stepped dome used in the invention.
- the plastic sleeve is not, as it were, molded onto the metallic core element, but is manufactured separately from the metallic core element and then connected to the core element by plugging it onto the core element united.
- the core element and the plastic sleeve can be produced separately and optimally adapted to the respective requirements.
- the plastic sleeve predominantly functions as a bearing sleeve for the spring element.
- the spring element is typically a leg spring with a helical winding section and legs connected at each end.
- the helical winding section now uses the plastic sleeve as a bearing sleeve and is designed so that the relevant winding section helically surrounds the plastic sleeve.
- the two legs of the leg spring extending from the helical winding section can, on the one hand, be fixed in place and, on the other hand, serve to act on a lever mounted on the stepped dome.
- the design in this context is regularly such that one leg of the leg spring is fixed in place on the lock case, whereas the other leg applies spring force to the lever in question.
- the lever in question can be a locking element or a lever as part of the actuating lever mechanism.
- the stepped mandrel serves to support the pawl.
- an ejector lever that can be acted upon with the help of the spring or the spring element is mounted as part of the actuating lever mechanism on the same axis as the pawl.
- the motor vehicle locking device is designed as a motor vehicle hood lock, which of course only applies as an example and is not to be understood as restrictive.
- the procedure is advantageously such that the plastic sleeve is equipped with clamping ribs that run in the longitudinal direction and surround a receiving hole for the core element.
- the plastic sleeve initially has a receiving hole into which the core element is inserted. So that this insertion process cannot be unintentionally canceled again, the plastic sleeve is equipped with clamping ribs running in the longitudinal direction.
- the clamping ribs surround the receiving hole for the core element.
- the design is usually and advantageously such that the clamping ribs are each equipped with front locking teeth for gripping behind a collar on the core element.
- the locking teeth provided on the front of the clamping ribs ensure that they can grip behind the collar on the metallic core element.
- the metallic core element has not only been inserted into the receiving hole in the plastic sleeve, but at the same time is locked through the interaction of the front locking teeth of the clamping ribs with the collar.
- the core element and the plastic sleeve can no longer be separated from each other or this requires considerable force and may lead to the destruction of the clamping ribs or locking teeth.
- the clamping ribs In order to realize and implement a particularly favorable and easy-to-assemble locking connection between the front locking teeth of the clamping ribs and the collar on the metallic core element, the clamping ribs generally run conically starting from a peripheral edge of the plastic sleeve in the direction of the core element. Due to this conicity of the clamping ribs, the front locking teeth on the clamping ribs can easily grip over the collar on the front of the core element and engage behind it in a locking manner, so that in this way the core element and the plastic sleeve are united with one another.
- the clamping ribs are generally arranged equidistantly at the same angular distance from one another.
- the invention is based on the additional finding that the plastic sleeve, like the metallic core element, is generally cylindrical or, in the case of the plastic sleeve, hollow cylindrical. Both of the above-mentioned elements are combined with one another in the assembled state with the same cylinder axis.
- guide ribs that also run in the longitudinal direction of the plastic sleeve are provided for the core element. The guide ribs ensure that the core element is guided and supported properly in the receiving hole of the plastic sleeve over its length.
- the stepped dome is usually used to support the pawl and advantageously also to support an ejector lever, which in turn is acted upon by the spring.
- a leg extending from the winding section of the leg spring may be mounted on the one hand in the lock case and on the other hand on the ejector lever in question, so that the ejector lever is subjected to the required spring force by the leg spring.
- the ejector lever is able to move a locking bolt connected to a hood into an installation position, so that, based on this, a user can then easily open the hood in question manually, as is the case with reference to this point relevant prior art has already been described in the introduction.
- a motor vehicle locking device is made available that is constructed cost-effectively because, first of all, there is no need for a stepped dome constructed entirely of metal.
- step domes are used, which in this context are made entirely of metal and, in particular, high-strength steel, if they are to be used to support the pawl and the ejector lever at the same time.
- the stepped mandrel also functions as a bearing sleeve for the spring and in particular the leg spring acting on the ejector lever.
- Fig. 2 shows the step dome used in the locking device according to Fig. 1 in detail in a side view
- Fig. 3 shows the step dome according to Fig. 2 in a front view.
- the figures show a motor vehicle locking device which is designed as a motor vehicle lock and, according to the exemplary embodiment, as a motor vehicle hood lock.
- the motor vehicle locking device shown serves to lock a hood 1, which is only indicated in FIG.
- the hood 1 can be a front hood or a tailgate of a motor vehicle, which is equipped with a for this purpose
- Locking bolt 2 is equipped.
- the locking bolt 2 In the closed state shown in FIG. 1, the locking bolt 2 is held in the locked state of the hood 1 relative to a motor vehicle body, not shown, using a locking mechanism 3, 4.
- the locking mechanism 3, 4 is composed of a rotary latch 3 and a pawl 4 which is thereby locked in the closed state.
- an actuating lever mechanism 5 is basically provided, which can interact with the locking mechanism 3, 4.
- the actuating lever mechanism 5 is an ejector lever 5 which is mounted in a lock case 6 on the same axis as the pawl 4.
- a stepped mandrel 7, 8, which can be seen in detail in FIG.
- a spring element 9 is arranged on the stepped dome 7, 8.
- the spring element 9 is a leg spring 9, which helically surrounds the stepped dome 7, 8 or a plastic sleeve 7 provided there and to be described in more detail below with its winding section 9a.
- Two legs 9b, 9c extend from the winding section 9a.
- leg 9b of the leg spring 9 is mounted in a stationary manner, namely fixed to the lock case 6.
- the free leg 9c engages the ejector lever 5 and ensures that the ejector lever 5 is subjected to spring force by the leg spring 9.
- the leg spring 9 in the exemplary embodiment ensures that the ejector lever 5 is acted upon in the clockwise direction indicated in FIG The previously described lifting position of the hood 1 can be transferred.
- the stepped dome 7, 8 is designed in two parts with a metallic core element 8 made of the highest quality steel and the plastic sleeve 7 on the outer circumference already mentioned, which carries the helical winding section 9a of the leg spring 9.
- the union between the metallic core element 8 and the plastic sleeve 7 on the outer circumference occurs in that the plastic sleeve 7 is plugged onto the core element 8.
- the core element 8 is in turn anchored, for example rented, in the lock case 6 and can thereby absorb tearing forces acting on it.
- the plastic sleeve 7 has clamping ribs 10 which run in the longitudinal direction and which accommodate the core element 8 and which accommodate the core element 8.
- the clamping ribs 10 are each equipped with front locking teeth 10a, with the help of which they form a collar 8d provided on the front of the metallic core element 8 can grab behind you.
- the clamping ribs 10 extend from a peripheral edge 7a of the plastic sleeve 7 and run conically towards the metallic core element 8. It can be seen that the clamping ribs 10 are arranged equidistantly with the same angular distance from one another.
- the plastic sleeve 7 and the metallic core element 8 have the common axis A, namely they are each cylindrical or hollow cylindrical in comparison to this common axis A.
- the plastic sleeve 7 can be produced from a thermoplastic material by a usual injection molding process. During this injection molding process, the clamping ribs 10 as well as the guide ribs 11 can be used at the same time define.
- the metallic core element 8, on the other hand, is made of high-strength steel and serves to simultaneously support the pawl 4 as well as the ejector lever 5, as already described in the introduction. For this reason, the metallic core element 8 protrudes from the plastic sleeve 7 and the respective bearing areas for the pawl 4 on the one hand and the stepped dome 5 on the other hand are defined by the shoulders 8a and 8b provided at this point. On the front side of the storage area 8b, the metallic core element 8 merges into a plug-in pin 8c, which is anchored in the lock case 6.
- the metallic core element 8 is inserted into the receiving hole until the front locking teeth 10a of the clamping ribs 10 can engage behind the collar 8a on the front of the metallic core element 8.
- the leg spring 9 can then be plugged onto the plastic sleeve 7 with its helical winding section 9a.
- the stepped dome 7, 8 including the spring element 9 and ejector lever 5 can then be anchored in the lock case 6 in the usual way, for example by riveting.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022115494.7A DE102022115494A1 (de) | 2022-06-22 | 2022-06-22 | Kraftfahrzeug-Schließvorrichtung |
| PCT/DE2023/100362 WO2023246972A1 (de) | 2022-06-22 | 2023-05-17 | KRAFTFAHRZEUG-SCHLIEßEINRICHTUNG |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4544134A1 true EP4544134A1 (de) | 2025-04-30 |
Family
ID=86688749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23728259.5A Pending EP4544134A1 (de) | 2022-06-22 | 2023-05-17 | KRAFTFAHRZEUG-SCHLIEßEINRICHTUNG |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4544134A1 (de) |
| CN (1) | CN119421987A (de) |
| DE (1) | DE102022115494A1 (de) |
| WO (1) | WO2023246972A1 (de) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6346566U (de) * | 1986-09-16 | 1988-03-29 | ||
| JPS6378977A (ja) * | 1986-09-22 | 1988-04-09 | 株式会社 安成工業 | 自動車用ドアロツクのボデイ− |
| JP2662737B2 (ja) | 1988-09-30 | 1997-10-15 | アイシン精機株式会社 | ドアロツク装置 |
| DE102007003948A1 (de) | 2006-11-22 | 2008-05-29 | Kiekert Ag | Schlosseinheit mit mehrteiliger Sperrklinke |
| DE102009021511A1 (de) | 2009-05-15 | 2010-11-18 | Volkswagen Ag | Fahrzeug mit einem Klappenschloss |
| DE102010061518B4 (de) | 2010-12-23 | 2022-03-24 | Witte Automotive Gmbh | Frontklappenschloss |
| DE102017108226A1 (de) | 2017-04-18 | 2018-10-18 | Laumer Ingenieurbüro Gmbh | Sicherheitssystem mit Betonsperren |
| DE102018114280A1 (de) | 2018-06-14 | 2019-12-19 | Kiekert Ag | Schließvorrichtung für ein Kraftfahrzeug |
| DE102019128463A1 (de) | 2019-10-22 | 2021-04-22 | Kiekert Aktiengesellschaft | Kraftfahrzeug-schloss, insbesondere kraftfahrzeug-türschloss |
-
2022
- 2022-06-22 DE DE102022115494.7A patent/DE102022115494A1/de active Pending
-
2023
- 2023-05-17 EP EP23728259.5A patent/EP4544134A1/de active Pending
- 2023-05-17 WO PCT/DE2023/100362 patent/WO2023246972A1/de not_active Ceased
- 2023-05-17 CN CN202380048810.1A patent/CN119421987A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022115494A1 (de) | 2023-12-28 |
| WO2023246972A1 (de) | 2023-12-28 |
| CN119421987A (zh) | 2025-02-11 |
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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 |
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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: 20241212 |
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| AK | Designated contracting states |
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| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) | ||
| 19U | Interruption of proceedings before grant |
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| 19W | Proceedings resumed before grant after interruption of proceedings |
Effective date: 20270104 |