EP4677179A1 - Kraftfahrzeugschloss - Google Patents
KraftfahrzeugschlossInfo
- Publication number
- EP4677179A1 EP4677179A1 EP24702468.0A EP24702468A EP4677179A1 EP 4677179 A1 EP4677179 A1 EP 4677179A1 EP 24702468 A EP24702468 A EP 24702468A EP 4677179 A1 EP4677179 A1 EP 4677179A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- locking
- motor vehicle
- lever
- operating lever
- vehicle lock
- 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
- E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
- E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
- E05B77/26—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like specially adapted for child safety
-
- 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
- E05B81/16—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on locking elements for locking or unlocking action
-
- 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
- E05B77/22—Functions related to actuation of locks from the passenger compartment of the vehicle
- E05B77/24—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like
- E05B77/26—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like specially adapted for child safety
- E05B77/265—Functions related to actuation of locks from the passenger compartment of the vehicle preventing use of an inner door handle, sill button, lock knob or the like specially adapted for child safety hand actuated, e.g. by a lever at the edge of the door
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/02—Power-actuated vehicle locks characterised by the type of actuators used
- E05B81/04—Electrical
- E05B81/06—Electrical using rotary motors
-
- 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
Definitions
- the invention relates to a motor vehicle lock, in particular a motor vehicle door lock, with a locking mechanism consisting essentially of a rotary latch and a pawl, furthermore with an internal operating lever chain and an external operating lever chain, and with two electromotive drives, wherein the first electromotive drive is designed to act on the external operating lever chain to open/close it and the second electromotive drive is designed to act on the internal operating lever chain to open/close it, and wherein for this purpose at least one clutch slide is adjusted axially.
- An external operating lever chain in a motor vehicle lock and in particular a motor vehicle door lock is generally used to open the locking mechanism using an external door handle.
- the external operating lever chain is generally equipped with a coupling element which closes the external operating lever chain when coupled and opens it when uncoupled.
- the coupling element can be coupled and uncoupled using the first electric motor drive.
- the first electric motor drive is generally connected to a locking lever, which in turn works on the coupling element in question via, for example, a driver.
- a similar procedure can be used for the internal operating lever chain.
- a coupling element is generally implemented, which ensures that the internal operating lever chain is closed when coupled or inserted.
- the locking mechanism can be opened mechanically directly via an internal door handle. If, on the other hand, the internal operating lever chain is in its open state, the coupling element is disengaged.
- the second electric motor drive is provided to actuate the coupling element for the internal operating lever chain. This may work via a safety lever on another driver, with the help of which the coupling element as part of the internal operating lever chain is coupled or uncoupled accordingly. This has basically proven to be successful.
- a second movement transmission link or the inside operating lever chain is connected to an inside door handle in order to transmit a corresponding opening movement from the inside door handle to the lock.
- a second clutch is provided which, when in the engaged position, transmits the opening movement to the lock. If, however, the second clutch is in an uncoupled position, the opening operation is not transmitted to the lock.
- a clutch slide is also provided, which is pivoted with the help of an electric drive.
- the electric motor drive engages in a ring groove of the clutch slide. This allows the respective clutch to be engaged and disengaged. This leads to Overall, this results in a relatively complex structure and also means that the coupling element of the internal operating lever chain cannot necessarily be inserted when the external operating lever chain is in the unlocked and locked state. It is also not easy to disengage the coupling element of the internal operating lever chain, regardless of the position of the coupling element or the open or closed position of the external operating lever chain.
- the second electric motor drive for the interior operating lever chain can be designed as an electric motor child safety lock, for example.
- an electric motor child safety lock it is increasingly required that it can be inserted and removed in any position of the vehicle lock, i.e. regardless of whether the exterior operating lever chain is in the closed or open state and therefore in the "unlocked" or "locked” position.
- Child safety lock systems are known, for example, from the further prior art according to DE 10 2020 128 302 A1, but they also do not allow the functionality specified above.
- a child safety lock state detector is provided in this context, with the help of which it can be determined whether the child safety lock mechanism is in the unlocked state or the locked state.
- a control is carried out to execute a child safety lock priority mode. In this mode, it is not possible to drive the locking mechanism if the child safety lock state detector detects the locked state.
- an electrical child safety lock in particular is linked to certain functional states and cannot be configured and configured arbitrarily.
- the invention aims to remedy this.
- the invention is based on the technical problem of further developing such a motor vehicle lock and in particular a motor vehicle door lock in such a way that the interior operating lever chain can be selectively opened and closed, regardless of the state of the exterior operating lever chain.
- a generic vehicle lock and in particular motor vehicle door lock is characterized within the scope of the invention in that the axially adjustable coupling slide, through its axial adjustment, optionally releasably connects a driver for a coupling element to a locking lever or a safety lever, in particular a child safety lever.
- the axially adjustable coupling slide ensures that the driver for the coupling element is connected to either the locking lever or the safety lever. This allows the locking lever or optionally the safety lever to work on the driver and in this way adjust the coupling element, for example, between its two basic positions “engaged” and “unengaged”.
- the design is such that the locking lever is designed as a component of the external operating lever chain and is actuated by the first electric motor drive.
- the safety lever is a component of the internal operating lever chain.
- the safety lever in question is actuated by the second electric motor drive.
- Both the locking lever and the safety lever are generally and particularly advantageously designed as worm gears.
- the two worm gears can be made of plastic and in particular can be plastic injection molded parts. In this way, it is possible to In a further advantageous embodiment, it is possible for both worm gears to be mounted coaxially to one another around a common axis.
- both worm gears are designed with a guide contour for the common clutch slide. The guide contour is an arc opening in each case and in both cases.
- the two worm gears are generally a locking worm gear on the one hand and a safety worm gear on the other.
- the locking worm gear is equipped with a locking contour for at least one locking pin on the clutch slide.
- the clutch slide usually has two locking pins that are essentially diametrically opposed or at least arranged at an angle to each other.
- the locking contour is equipped with a corresponding locking indentation for the associated locking pin.
- the safety worm gear has at least one support contour for at least one support pin on the clutch slide.
- two diametrically opposed support pins are implemented on the clutch slide, namely on the base side.
- the safety worm gear is equipped with two associated support contours.
- the two support contours generally extend parallel or in the same arc-shaped extension as the associated guide contour in the safety worm gear.
- the clutch slide is generally designed as a clutch sleeve.
- a control pin of the driver is accommodated inside the clutch sleeve.
- the design is such that the control pin passes through the clutch sleeve with the interposition of a spring.
- the spring is supported on the one hand by a head of the clutch sleeve and on the other hand by a round stop of the control pin.
- the spring is preferably a helical spring.
- the coupling element it is possible overall for the coupling element to be inserted and removed via the driver as an exemplary component of the interior operating lever chain, regardless of the state ("locked/unlocked") of the exterior operating lever chain.
- This is particularly convenient and enables effective protection, especially for children, who in this context are usually on a back seat.
- at least the two rear side door locks on a motor vehicle are designed according to the invention.
- any motor vehicle lock can also be equipped with the relevant security lever and the functionality described, for example in order to realize and implement an anti-theft function.
- the inner operating lever chain and the outer operating lever chain can be controlled by the two worm gears that are mounted coaxially to one another around a common axis.
- the two worm gears are each controlled by the first or second electric motor drive, which consequently engage in a corresponding toothing on the outer circumference of the worm gears. Since the two worm gears are arranged coaxially to one another, the two associated electric motor drives can also be arranged on the outer circumference and, for example, parallel or at a small angle to one another in the Place inside a lock housing. This facilitates a compact
- Fig. 1 shows the motor vehicle lock according to the invention schematically
- Fig. 2 the arrangement of locking lever and safety lever including axially adjustable coupling slide and driver in a perspective
- FIG. 3A to 3E individual perspective views of the locking lever and safety lever including coupling slide in different functional positions and
- Fig. 4A to 4E show another view of the locking lever and safety lever including driver in corresponding functional positions.
- a motor vehicle lock is shown.
- the motor vehicle lock is a motor vehicle door lock and, specifically, a motor vehicle side door lock.
- This is equipped with a locking mechanism (not expressly shown) consisting essentially of a rotary latch and a pawl.
- the locking mechanism is mounted in a lock case which extends perpendicularly to the plane of the drawing shown in Fig. 1.
- the locking mechanism consisting essentially of a rotary latch and a pawl, can be actuated and in particular opened using a release lever 1.
- An opening movement of the locking mechanism corresponds to the release lever 1 in the illustration according to Fig. 1 performing a pivoting movement around its axis in the clockwise direction indicated here. This allows an indicated and vertically forward
- the jumping edge of the release lever 1 lifts the pawl from its engagement with the rotary latch and the locking mechanism opens with spring support.
- the previously described clockwise movement of the release lever 1 can be realized and implemented with the help of an external operating lever chain 2, 4; 1 or alternatively an internal operating lever chain 3, 5, 6; 7; 1.
- the external operating lever chain 2, 4; 1 is equipped with an external operating lever 2 and a locking lever 4.
- the internal operating lever chain 3, 5, 6; 7; 1 has an internal operating lever 3, a safety lever 5 and a driver 6.
- a coupling element 7 is also implemented. Both lever chains 2, 4; 1 on the one hand and 3, 5, 6; 7; 1 on the other hand work together on the previously mentioned release lever 1, which in turn ensures that the locking mechanism opens.
- the external operating lever chain 2, 4; 1 is also equipped with such a coupling element. However, this is not shown explicitly for reasons of clarity. Also not shown is a driver that works on the coupling element in question as part of the external operating lever chain 2, 4; 1 in order to transfer the coupling element into the "engaged" position corresponding to the closed position of the external operating lever chain 2, 4; 1 and "unengaged", which belongs to the open state of the external operating lever chain 2, 4; 1 in question.
- the coupling element of the external operating lever chain 2, 4; 1 is controlled with the aid of the locking lever 4, which will be discussed in more detail in Figs. 3A to 3E and 4A to 4E, as a component of the external operating lever chain 2, 4; 1.
- the locking lever 4 is actuated by means of a first electric motor drive 8.
- the coupling element 7 as a component of the interior operating lever chain 3, 5, 6, 7; 1 is transferred to its "engaged” and "unengaged” positions via the driver 6.
- the engaged state of the coupling element 7 means that the interior operating lever chain 3, 5, 6, 7; 1 is closed, so that an actuation of an interior door handle via the interior operating lever chain 3, 5, 6, 7; 1 in question corresponds to the release lever 1 being pivoted clockwise and thereby opening the locking mechanism (not shown).
- the coupling element 7 as a component of the interior operating lever chain 3, 5, 6, 7; 1 assumes its "unengaged” state, this includes the open position of the interior operating lever chain 3, 5, 6, 7; 1 . In this functional position, the inside door handle is acted upon in relation to the inside operating lever chain 3, 5, 6, 7; 1, so that in this case the release lever 1 is not acted upon and consequently the locking mechanism is not opened.
- a clutch slide 10 is implemented that is axially adjustable.
- the axial adjustment of the clutch slide 10 corresponds to the fact that the clutch slide 10 optionally releasably connects the driver 6 for the clutch element 7 to the locking lever 4 or the safety lever 5.
- the safety lever 5 is a child safety lever 5.
- an anti-theft lever could just as well be implemented at this point. However, this is not shown.
- the locking lever 4 is a component of the external operating lever chain 2, 4; 1.
- the locking lever 4 is actuated by the first electric motor drive 8.
- both electric motor drives 8, 9 run essentially parallel to one another and mesh on the outer circumference with the locking lever 4 on the one hand and the safety lever 5 on the other.
- both levers 4, 5 according to the exemplary embodiment are each equipped as worm gears with a toothing on the outer circumference (not expressly shown).
- both worm gears 4, 5 are designed as plastic injection molded parts. The same applies to the clutch slide 10 and the driver 6.
- the two electric motor drives 8, 9 are arranged parallel or predominantly parallel to one another in such a way that their worms, each provided on an output shaft, engage on the outer circumference of the locking lever 4 and the safety lever 5 to rotate them.
- the associated worms run predominantly parallel to one another and are diametrically opposed to one another in relation to a common axis 11 of the locking lever 4 and the safety lever 5, as can be seen from Fig. 1.
- both worm gears 4, 5 are mounted coaxially to each other and in relation to the common axis 11.
- both worm gears 4, 5 have an associated guide contour 12, 13.
- the common clutch slide 10 engages in the guide contour 12, 13. This is because both guide contours 12, 13 are each designed as an arc opening. This can be seen from the different functional positions in Fig. 3A to 4E.
- the two worm gears 4, 5 are designed according to their function on the one hand as a locking worm gear 4 and on the other hand as a safety worm gear 5.
- the locking worm gear 4 has the guide contour 12, whereas the safety worm gear 5 is equipped with the additional guide contour 13.
- the safety worm gear 5 or its guide contour 13 is equipped with at least one support contour 13a.
- two support contours 13a are provided at this point, which run on both sides of the guide contour 13. Since the guide contour 13 is curved and covers an angle of approximately 180°, the two support contours 13a are also correspondingly circularly arc-shaped and also cover the previously mentioned circular arc angle of approximately 180°.
- the support contours 13a can interact with individual support pins 14a, 14b on the coupling slide 10, as can be seen by comparing, for example, Fig. 4E with the illustrations in Figs. 3A to 3E.
- the coupling slide 10 is designed as a coupling sleeve 10.
- the coupling sleeve 10 is designed as a hollow cylinder. This allows the coupling slide or the coupling sleeve 10 to accommodate a control pin 6a in its interior, which is designed as a component of the driver 6.
- the control pin 6a has a round stop 6b on the head side.
- a spring 15 can be placed between the round stop 6b and a head-side end of the coupling sleeve 10.
- the spring 15 is a helical spring, which encloses the cylindrical control pin 6a with its individual coils and rests on the round stop 6b on the one hand and the head of the coupling sleeve 10 on the other. In this way, an axial movement of the control pin 6a including the connected driver 6 leads to the spring 15 being compressed or relaxed.
- the function of the worm gears 4, 5 or the locking worm gear 4 and the safety worm gear 5 is explained in detail below, in connection with the resulting functional positions of the motor vehicle lock. Starting in Fig. 3A and 4A, the "unlocked” and “child safety lock off” states are shown here.
- the internal operating lever chain 3, 5, 6, 7; 1 is also closed because the coupling element 7 or the coupling lever 7 assumes its "coupled” position via the driver 6, as shown in Fig. 1.
- the release lever 1 can also be actuated clockwise via the internal operating lever 3 during a clockwise pivoting movement via the closed coupling lever or the coupling element 7 in order to open the closed locking mechanism - as described.
- the design is such that the coupling slide or the coupling sleeve 10 is in engagement with the locking worm gear 4, but no mechanical coupling is observed with respect to the safety worm gear 5.
- This can be attributed to the fact that the locking pins 14a, 14b at the end of the coupling sleeve 10 are not in engagement with the support contour 13a or guide contour 13 in the safety worm gear 5 or a spacing from this is observed.
- the coupling sleeve 10 engages with its locking pin 10a in a locking contour 12a of the guide contour 12 on the locking worm gear 4.
- a pivoting movement of the safety worm gear 5 corresponds to this, whereby the coupling sleeve 10 is axially adjusted with the aid of a control ramp 16 arranged on the safety worm gear 5 and is lifted off its previously assumed engagement with the locking worm gear 4.
- 3A or 4A is in engagement with the locking worm gear 4 because the coupling sleeve 10 engages with its locking pin 10a provided on the outer circumference or at least one of these locking pins 10a in the locking contour 12a of the locking worm gear 4.
- the locking contour 12a is therefore realized on the edge or in the area of the guide contour 12 of the locking worm gear 4.
- the coupling sleeve 10 is now axially adjusted using the control ramp 16 in the illustration according to Fig. 3A and 4A or "raised” in the illustration according to Fig. 3A, the locking pins 10a on the coupling sleeve 10 are thereby released from the associated locking contour 12a as part of the guide contour 12 and thus from the locking lever or locking worm gear 4 as a whole.
- the associated pivoting movement of the locking worm gear 5 causes the coupling sleeve 10 to pivot as a whole, namely in the clockwise direction indicated therein during the transition from Fig. 4A to Fig. 4B.
- the locking worm gear 4 has retained its position, but the child safety lock has been engaged. This is because the engaged child safety lock is connected to the pivoting movement of the locking worm gear 5 as described and to the fact that the coupling sleeve 10 is moved axially and at the same time the mechanical connection to the locking worm gear 4 is removed.
- the axial adjustment of the coupling sleeve 10 means that the two support pins 14a, 14b on the base side of the coupling sleeve 10 can be inserted into the guide contour 13 of the safety worm gear 5.
- the two support pins 14a, 14b come to rest on the support contours 13a on both sides of the guide contour 13 on the safety worm gear 5.
- the transition from Fig. 3B or Fig. 4B to Fig. 3C or 4C corresponds to the locking worm gear 4 moving into its "locked" position. This corresponds to a pivoting movement of the locking worm gear 4 in a clockwise direction starting from Fig. 4B to Fig. 4C.
- the locking worm gear 4 has been pivoted in a clockwise direction
- the safety worm gear 5 has experienced a comparable clockwise movement and the locking worm gear 4 remains at rest.
- the locking worm gear 4 initially maintains its "locked” position. This means that the locking worm gear 4 performs the transition from Fig. 3C, 4C to to Fig. 3D or 4D no movement. In contrast, the child safety lock is engaged. This corresponds to the fact that the safety worm gear 5 is controlled in such a way that the safety worm gear 5 performs a clockwise movement during the transition from Fig. 4C to Fig. 4D. According to the illustration in Figs. 3C and 3D, this corresponds to the control ramp 16 moving under the coupling sleeve 10 and "lifting" it during the described movement sequence.
- the coupling sleeve 10 or its locking pins 10a attached to the outer circumference are therefore released from the locking contours 12a as components of the guide contour 12 of the locking worm gear 4 and as a result the coupling sleeve 10 as a whole is released from the locking worm gear 4.
- the two support pins 14a, 14b on the base side of the coupling sleeve 10 dipped into the guide contour 13 in the safety worm gear 5.
- the two support pins 14a, 14b come into contact with and rest on the support contour 13a as part of the guide contour 13 inside the safety worm gear 5.
- the coupling sleeve 10 When changing from Fig. 4A, 3A to Fig. 4B, 3B (child safety lock on in unlocked state), the coupling sleeve 10 is detachably coupled to the locking worm gear 5.
- the coupling sleeve 10 When changing from Fig. 4A, 3C to Fig. 4A, 3A, for example, i.e. “locked” to “unlocked” with the child safety lock activated, the coupling sleeve 10 is detachably coupled to the locking worm gear 4.
Landscapes
- Health & Medical Sciences (AREA)
- Child & Adolescent Psychology (AREA)
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102023105269.1A DE102023105269A1 (de) | 2023-03-03 | 2023-03-03 | Kraftfahrzeugschloss |
| PCT/DE2024/100017 WO2024183842A1 (de) | 2023-03-03 | 2024-01-11 | Kraftfahrzeugschloss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4677179A1 true EP4677179A1 (de) | 2026-01-14 |
Family
ID=89768571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24702468.0A Pending EP4677179A1 (de) | 2023-03-03 | 2024-01-11 | Kraftfahrzeugschloss |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4677179A1 (de) |
| CN (1) | CN120712394A (de) |
| DE (1) | DE102023105269A1 (de) |
| WO (1) | WO2024183842A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19739340A1 (de) * | 1997-09-09 | 1999-03-18 | Mannesmann Vdo Ag | Elektrisch betätigbares Schloß |
| DE102005052190A1 (de) * | 2005-10-28 | 2007-05-03 | Kiekert Ag | Kraftfahrzeugtürschloss |
| DE102007049900A1 (de) | 2006-10-16 | 2008-04-17 | Witte-Velbert Gmbh & Co. Kg | Kraftfahrzeugtürverschluss |
| DE102008055516A1 (de) * | 2008-12-12 | 2010-06-17 | Witte-Velbert Gmbh & Co. Kg | Modulartig aufgebaute Zentralverriegelungseinheit für ein Kfz |
| DE102017124522A1 (de) * | 2017-10-20 | 2019-04-25 | Kiekert Ag | Kraftfahrzeugtürschloss |
| JP7300368B2 (ja) | 2019-10-30 | 2023-06-29 | 株式会社ユーシン | ドアロックシステム |
-
2023
- 2023-03-03 DE DE102023105269.1A patent/DE102023105269A1/de active Pending
-
2024
- 2024-01-11 EP EP24702468.0A patent/EP4677179A1/de active Pending
- 2024-01-11 WO PCT/DE2024/100017 patent/WO2024183842A1/de not_active Ceased
- 2024-01-11 CN CN202480016406.0A patent/CN120712394A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN120712394A (zh) | 2025-09-26 |
| WO2024183842A1 (de) | 2024-09-12 |
| DE102023105269A1 (de) | 2024-09-05 |
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