EP4673620A1 - Zuzieheinrichtung - Google Patents
ZuzieheinrichtungInfo
- Publication number
- EP4673620A1 EP4673620A1 EP24710332.8A EP24710332A EP4673620A1 EP 4673620 A1 EP4673620 A1 EP 4673620A1 EP 24710332 A EP24710332 A EP 24710332A EP 4673620 A1 EP4673620 A1 EP 4673620A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gear
- worm wheel
- electric motors
- worm
- closing
- 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
- E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
- E05B81/32—Details of the actuator transmission
- E05B81/34—Details of the actuator transmission of geared transmissions
-
- 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
- E05B81/24—Power-actuated vehicle locks characterised by constructional features of the actuator or the power transmission
- E05B81/32—Details of the actuator transmission
- E05B81/34—Details of the actuator transmission of geared transmissions
- E05B81/38—Planetary gears
Definitions
- the invention relates to a closing device for a motor vehicle lock, in particular a motor vehicle door lock closing aid, with at least two electric motors, furthermore with at least one worm wheel, and with a gear following the worm wheel, wherein both electric motors each mesh with the worm wheel.
- Closing devices for motor vehicle locksmiths are typically used when a locking mechanism consisting of, for example, a rotary latch and pawl as part of the relevant motor vehicle lock assumes its pre-locking position.
- This pre-locking position is usually detected by sensors.
- a control unit derives an actuation of one or both electric motors in order to move the locking mechanism from its pre-locking position to the main locking position.
- the rotary latch is moved to a so-called overstroke position and then reset until the main stop is reached. This allows a particularly convenient locking process for the vehicle lock in question to be realized and implemented.
- the motor vehicle locksmiths employed here are all types of locks in or on motor vehicles. For example, this includes side door locks, tailgate locks, front hatch locks, etc.
- DE 10 2013 111 039 A1 which in this context works with a planetary gear as a transmission or gear stage.
- the generic prior art according to DE 10247979 A1 already shows a closing aid with several electric motors.
- two electric motors are implemented in the embodiment according to Figure 1, which engage in the worm wheel on the outer circumference via associated drive shafts with worms on them. This allows a drive shaft or output shaft to be actuated in both directions of rotation.
- a gear is connected downstream, with the help of which a closing movement on a closing aid with two levers connected like a toggle lever is transmitted to a rotary latch via an angle lever.
- the electromechanics are designed to be reliable and cost-effective.
- a comparable state of the art is known from DE 103 93 002 B4.
- two electric motors are used, which work together on a worm wheel in the middle. This is intended to provide a drive device and a door closer that allows for smaller dimensions.
- the two electric motors used in the state of the art therefore result in a compact design overall, because a typically and alternatively used bulky single electric motor is replaced by two small electric motors that jointly actuate the common worm gear.
- the invention aims to remedy this overall.
- the invention is based on the technical problem of further developing such a closing device for a motor vehicle lock in such a way that the compactness is further increased compared to the prior art and at the same time a particularly functionally reliable structure is realized and implemented.
- the gear is at least partially integrated into the worm wheel.
- the gear, or at least a first gear stage is fully integrated into the worm wheel.
- the worm gear also functions as a gear housing for the entire gear stage or its first gear stage. At least the worm gear partially takes over the function of the gear housing in question, namely when the gear is partially integrated into the worm gear.
- the procedure is such that the gear or the first gear is completely enclosed by the worm wheel, so that the worm wheel functions and can function as a gear housing for the first gear stage or the gear as a whole.
- the worm wheel is generally equipped with an internal wooden gear.
- the hollow gear can be designed as a component of the worm wheel.
- the hollow gear is connected to the worm wheel in a rotationally fixed manner.
- a particularly advantageous embodiment of the invention is characterized in that the gear is designed as a spur gear and/or planetary gear.
- such a spur gear and/or planetary gear is characterized by the fact that the individual gear wheels can typically be arranged in a common plane. If this plane coincides with the plane spanned by the worm gear, the worm gear can be used particularly effectively to to be able to accommodate the spur gear and/or planetary gear in question with the individual gear wheels inside.
- the two electric motors are generally arranged at an angle and in particular at right angles to each other also contributes to the compact design.
- the two electric motors arranged at an angle to each other mesh with the common worm gear.
- the design is also such that both electric motors are designed the same, in particular with the same power and size. This results in synergy effects on the one hand because two electric motors of the same design are used to drive the worm gear and on the other hand the two electric motors of the same design also ensure a particularly even drive of the worm gear because their power output is the same. Any jamming or uneven running is therefore not to be expected.
- the fact that the two electric motors are the same size ensures that they can be designed to be particularly small, which has an additional positive effect on the compact design of the closing device according to the invention.
- the overall design is such that the planetary gear is formed with the hollow gear, a central sun gear and planetary gears.
- the aforementioned wheels or gears are all arranged in one plane.
- the hollow gear and the worm gear so that the planetary gear is suitable as a particularly compact and powerful gear, which can also be easily integrated into the worm gear, because the worm gear with the hollow gear on the outer circumference surrounds and encloses the individual other gears of the planetary gear.
- the design is also such that the sun gear is connected to the worm gear and/or the hollow gear. In most cases, the Sun gear connected to the worm gear, so that the tooth ratio between sun gear and worm gear or planet gear and worm gear determines the gear ratio achieved by the planetary gear used.
- the design can be advantageously further modified so that the planet gears are connected to a common planet gear carrier for the indirect or direct drive of, for example, a closing pawl. This means that a rotary motion can be picked up from the gear in question or the first gear stage inside the worm gear via the planet gear carrier in question, which is either converted via a further gear stage and then into a closing motion or directly provides the closing motion.
- the planetary gear carrier is coupled to an output shaft, which in turn, for example, acts on the rotary latch in a tightening direction or closes it via a lever arrangement.
- This lever arrangement may be a toggle lever arrangement. This can basically act on the rotary latch and ensure that the rotary latch is transferred from its pre-locking position to the main locking position.
- the pawl is acted upon in a tightening direction of the locking mechanism via the output shaft of the planetary gear carrier in question. Both locking mechanism parts can also be driven in a tightening direction.
- a closing device for a motor vehicle lock and, in addition, a motor vehicle lock are provided in which the closing device works directly or indirectly on the rotary latch and/or the pawl.
- the closing device is in turn equipped with two electric motors, each of which meshes with the worm gear on the outer circumference.
- Figure 1 shows the closing device according to the invention in a schematic perspective view
- Figure 2 shows an output shaft extending from the closing device according to Figure 1, including a lever mechanism for closing a locking mechanism and specifically the rotary latch of a locking mechanism consisting of a rotary latch and a pawl.
- Figure 1 shows a closing device for a motor vehicle lock and in particular a motor vehicle door lock closing aid.
- Figure 2 shows a locking mechanism consisting of a rotary latch 1 and a pawl 2 for the motor vehicle lock or motor vehicle door lock in question.
- a lever arrangement 3, 4 which is actuated by means of an output shaft 5, works on the rotary latch 1.
- the output shaft 5 is in turn set in rotation by means of an arrangement shown in Figure 1.
- the rotations of the output shaft 5, which are indicated in principle in Figure 2, are now used to transfer the rotary latch 1 from its pre-locking position to the main locking position according to the embodiment.
- the locking mechanism 1, 2 may first be transferred to an over-stroke position.
- a sensor 6 assigned to the rotary latch 1 it can now be determined via a control unit 7 whether the rotary latch 1 has reached its pre-locking position. has taken. If this is the case, the control unit 7 ensures that the output shaft 5 is set in rotation by applying power to two electric motors 8 as shown in Figure 1 and ensures that the rotary latch 1 is transferred from the pre-locking position in question to the main locking position.
- the further basic structure of the closing device includes, in addition to the electric motors 8 as shown in Figure 1, a worm gear 9 and a gear 10, 11, 12 following the worm gear 9.
- the gear 10, 11, 12 is designed as a planetary gear 10, 11, 12. This is of course only an example and is in no way mandatory. Instead of the planetary gear 10, 11, 12, a spur gear (not shown) can also be used.
- the planetary gear train 10, 11, 12 is made up of a ring gear or hollow gear 10, planetary gears 11 and a central sun gear 12.
- the central sun gear 12 is integrally connected to the worm or worm gear 9.
- the rotations of the sun gear 12 are taken up by the planetary gears 11 which mesh with the sun gear 12 and which, as a result, rotate inside the hollow gear 10.
- a planetary gear carrier 13 is used to pick up the joint rotation of the planetary gears 11 and transmit it to the output shaft 5.
- the planetary gear carrier 13 is connected to the output shaft 5 in a rotationally fixed manner.
- the gear 10, 11, 12 or planetary gear 10, 11, 12 in question is at least partially integrated into the worm wheel 9.
- the design is such that the gear 10, 11, 12 in question is completely integrated into the worm wheel 9, according to the embodiment is enclosed by the worm wheel 9. This means that Housings for the gear 10, 11, 12 and the worm gear 9 coincide according to the embodiment.
- the design is such that the hollow gear 10 provided on the inside of the worm gear 9 is connected to the worm gear 9 in a rotationally fixed manner.
- the hollow gear 10 could also be designed as such on the inside of the worm gear 9.
- the worm gear 9 has a straight toothing on the outside, into which the respective worms on the output shafts of the electric motors 8 engage. Since the two electric motors 8 according to the exemplary embodiment are arranged at right angles to one another and mesh with the external toothing of the worm gear 9 and, moreover, are designed to have the same power and size according to the exemplary embodiment, the worm gear 9 is driven evenly and without jamming using the two electric motors 8. The rotary motion introduced into the worm gear 9 via the two electric motors 8 is transmitted to the sun gear 12, which is integrally connected to the worm gear 9, which in turn ensures that the planet gears 11 rotate around the sun gear 12 and in this way set the planet gear carrier 13 with the connected output shaft 5 in rotation.
- the rotating output shaft 5 then ensures, in turn and as shown in Figure 2, that after the locking mechanism 1, 2 has assumed the pre-locking position, the rotary latch 1 is acted upon in a closing direction by means of the lever arrangement 3, 4.
- the lever arrangement or the two levers 3, 4 are toggle levers. This is of course only an example and is not mandatory.
- the planetary gears 11 are all connected to the planetary gear carrier 13, which provides for the indirect or direct drive of a closing pawl or the lever arrangement 3, 4 and thus, according to the embodiment, the rotary latch 1.
- the locking pawl 2 can also be subjected to a closing movement.
- both the rotary latch 1 and the pawl 2 are acted upon in a closing sense by means of the closing device according to the invention.
- the worm gear 9, like the planetary gear 10, 11, 12, can be made of plastic or designed as a plastic injection-molded part.
- the design is such that the common plane spanned by the individual gear wheels 10, 11, 12 of the gear or planetary gear 10, 11, 12 coincides with the plane spanned by the worm gear 9.
- the material thickness of the gear wheels 10, 11, 12 in question is adapted to the thickness of the worm gear 9 or the length of the outer peripheral toothing, so that the planetary gear 10, 11, 12 is arranged completely inside and enclosed by the worm gear 9.
- the gears 10, 11, 12 of the planetary gear 10, 11, 12 have straight teeth overall, but can also be equipped with helical teeth. The same applies to the outer peripheral toothing of the worm gear 9. Either way, it is conceivable that in addition to the planetary gear 10, 11, 12 shown as the first gear stage, one or more additional gear stages are also implemented, which then ultimately work on the output shaft 5 and the lever arrangement 3, 4 connected to it in order to act on the rotary latch 1 in a tightening direction. However, this is not shown in detail.
- the worm wheel 9 is pot-shaped and defines and represents a structural unit (made of plastic) with the sun wheel 12.
- the hollow gear 10 is inserted into the pot-shaped worm wheel 9 and is connected to it in a rotationally fixed manner.
- the worm wheel 9 and the hollow gear 10 can also be formed as one piece.
- the planetary gears 11 are located inside the hollow gear 9 and rotate about respective axes that are defined by individual bearing pins on the planetary gear carrier 13.
- the planet gear carrier 13, like the planet gears 11 and the hollow gear 10, can be made of plastic or as a plastic injection-molded part. This allows a particularly cost-effective and at the same time lightweight design to be realized and implemented.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023105178.4A DE102023105178A1 (de) | 2023-03-02 | 2023-03-02 | Zuzieheinrichtung |
| PCT/DE2024/100158 WO2024179644A1 (de) | 2023-03-02 | 2024-02-27 | Zuzieheinrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4673620A1 true EP4673620A1 (de) | 2026-01-07 |
Family
ID=90363216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24710332.8A Pending EP4673620A1 (de) | 2023-03-02 | 2024-02-27 | Zuzieheinrichtung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4673620A1 (de) |
| CN (1) | CN120641631A (de) |
| DE (1) | DE102023105178A1 (de) |
| WO (1) | WO2024179644A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3550141B2 (ja) | 2002-09-13 | 2004-08-04 | 三井金属鉱業株式会社 | 駆動装置およびドアクローザ |
| DE10247979B4 (de) | 2002-10-15 | 2014-10-02 | BÖCO Böddecker & Co. GmbH & Co. KG | Kraftfahrzeugschloss, vorzugsweise Kofferraum- oder Heckklappenschloss |
| DE10319744A1 (de) | 2003-04-30 | 2004-11-18 | Brose Schließsysteme GmbH & Co.KG | Kraftfahrzeugtürschloß mit elektromotorischem Öffnungsantrieb |
| DE102013108718A1 (de) * | 2013-08-12 | 2015-02-12 | BROSE SCHLIEßSYSTEME GMBH & CO. KG | Antriebsanordnung für eine Kraftfahrzeugkomponente |
| DE102013111039A1 (de) | 2013-10-04 | 2015-04-09 | BROSE SCHLIEßSYSTEME GMBH & CO. KG | Antriebsanordnung für ein Kraftfahrzeugschloss |
| DE102020121519A1 (de) * | 2020-08-17 | 2022-02-17 | Kiekert Aktiengesellschaft | Elektrisch betreibbare Vorrichtung für ein Kraftfahrzeugzugangssystem |
-
2023
- 2023-03-02 DE DE102023105178.4A patent/DE102023105178A1/de active Pending
-
2024
- 2024-02-27 EP EP24710332.8A patent/EP4673620A1/de active Pending
- 2024-02-27 CN CN202480012536.7A patent/CN120641631A/zh active Pending
- 2024-02-27 WO PCT/DE2024/100158 patent/WO2024179644A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DE102023105178A1 (de) | 2024-09-05 |
| WO2024179644A1 (de) | 2024-09-06 |
| CN120641631A (zh) | 2025-09-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
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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 |
Free format text: ORIGINAL CODE: 0009012 |
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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: 20250718 |
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| AK | Designated contracting states |
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| 19U | Interruption of proceedings before grant |
Effective date: 20251201 |
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| 19W | Proceedings resumed before grant after interruption of proceedings |
Effective date: 20270104 |