EP4048847A1 - Kraftfahrzeug-schloss, insbesondere kraftfahrzeug-heckklappenschloss - Google Patents
Kraftfahrzeug-schloss, insbesondere kraftfahrzeug-heckklappenschlossInfo
- Publication number
- EP4048847A1 EP4048847A1 EP20799985.5A EP20799985A EP4048847A1 EP 4048847 A1 EP4048847 A1 EP 4048847A1 EP 20799985 A EP20799985 A EP 20799985A EP 4048847 A1 EP4048847 A1 EP 4048847A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pawl
- motor vehicle
- rotary latch
- arm
- bearing pin
- 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
- E05B81/12—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators
- E05B81/14—Power-actuated vehicle locks characterised by the function or purpose of the powered actuators operating on bolt detents, e.g. for unlatching the bolt
-
- 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
-
- 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
- E05B85/26—Cooperation between bolts and detents
Definitions
- Motor vehicle lock in particular motor vehicle tailgate lock
- the invention relates to a motor vehicle lock, in particular a motor vehicle door lock and preferably a motor vehicle tailgate lock, with a locking mechanism consisting essentially of rotary latch and pawl, and with a motor drive for the pawl, the rotary latch having a rotary latch bearing bolt fixed to a lock case and the pawl have a pawl bearing pin for their respective rotatable mounting about associated axes.
- Motor vehicle locks generally refer to locks in or on motor vehicles. These include not only motor vehicle door locks, but generally also locks for, for example, motor vehicle seats, flap locks such as tank flap locks or loading flap locks. In addition, this also includes special motor vehicle door locks such as motor vehicle front hood locks or motor vehicle tailgate locks. In particular in the case of motor vehicle tailgate locks, so-called electric locks are used practically exclusively, in which the locking mechanism comprising the rotary latch and pawl is opened by a motor with the aid of the motor drive in the closed state.
- the motor drive generally operates on the locking pawl, as is described in WO 00/47851 A1, among other things.
- the motor drive is equipped with an electric motor and an output worm on the output shaft of the electric motor. With the help of the output worm, a driven pulley meshing with it is subjected to rotation. The output disk in turn ensures that the pawl in in the closed state of the locking mechanism is lifted from its engagement with the rotary latch.
- the invention is therefore based on the technical problem of developing such a motor vehicle lock, in particular a motor vehicle door lock and preferably a motor vehicle tailgate lock, in such a way that In particular, the motorized opening of the locking mechanism, starting from its closed state, can be carried out with less force than in the prior art.
- a generic motor vehicle lock within the scope of the invention is characterized in that the pawl bearing pin is mounted on an actuating rocker of the motor drive and consequently is not supported in or on the lock case.
- the actuating rocker is in turn rotatably mounted about a rocker bearing pin fixed to the lock case.
- the invention ensures that the pawl not only rotates around its axis, for example to release the rotary latch, but that the axis can also be displaced at a variable distance from the stationary rotary latch by means of the actuating rocker.
- the invention thus first of all dispenses with a fixed storage of the pawl box with the aid of the pawl bearing pin in or on the lock.
- the actuating rocker serves as part of the motor drive for receiving the pawl bearing bolt and thus also for the rotatable mounting of the pawl about its axis defined by the pawl bearing bolt.
- the actuating rocker in turn is rotatably mounted around the rocker bearing pin fixed on the lock case.
- the actuating rocker is designed as part of a crank mechanism of the motor drive. That is, the motorized drive usually has the aforementioned electric motor and the crank drive, the actuating rocker being a component of this crank drive.
- the actuating rocker is generally rotatably connected to an output disk of the motor drive with its end remote from the axis.
- the off-axis end of Actuate supply rocker designates that end of the actuating rocker which has a maximum distance from the axis of the actuating rocker defined by the rocker bearing pin. With this end remote from the axis, the actuating rocker is rotatably connected to the output disk of the motor drive.
- the motor drive for its part, has the aforementioned electric motor, which is equipped with an output worm on its output shaft.
- the output worm serves to act on the output pulley in a rotating manner.
- the output pulley has a toothing meshing with the output worm on its periphery.
- the actuating rocker is generally two-armed with a disk arm and a ratchet arm. Both arms are usually rotatably connected to one another.
- the disk arm as part of the actuating rocker, is rotatably connected to the previously mentioned output disk of the motor drive.
- the pawl arm regularly carries the pawl.
- the pawl arm is first of all rotatably mounted on the lock case in detail with the aid of the rocker bearing bolt.
- the overall rotatable design of the actuating rocker in relation to the lock case is therefore carried out via the ratchet arm.
- the pawl arm not only carries the rocker bearing pin defining the axis of the actuating rocker, but also the pawl bearing pin for defining the axis of the pawl is arranged on the pawl arm in question.
- the design is usually made in such a way that the pawl bearing bolt is arranged or fixed to the pawl arm at a smaller distance from the motor drive or the electric motor than the swing arm bearing bolt. This applies at least in the closed state of the locking mechanism, that is to say for the case when the actuating rocker together with the pawl mounted on it assumes its basic position. Because in the course of the actuation of the motorized drive, the swing arm bearing pin maintains its fixed position and the rotational movement of the pawl arm through the axis defined by this causes the pawl bearing pin to move and with it the axis of the pawl.
- the overall design is such that the pawl or its axis defined by the pawl bearing bolt generally increases the distance to the rotary latch or to the axis of the rotary latch defined by the rotary latch bearing bolt.
- the pawl is generally two-armed with a spring arm and a rotary latch arm.
- the spring arm and the rotary latch arm can be arranged at an angle to one another.
- the design is made so that the spring arm interacts with a spring.
- the spring is generally non-rotatably connected to the lock case and ultimately ensures that the pawl is pretensioned in the direction of the rotary latch, i. H. the pawl must be moved against the force of the spring to open the locking mechanism.
- the rotary latch arm interacts with the rotary latch.
- the rotary latch arm is usually equipped with the previously described locking lug or the associated locking surface on the pawl, which engages with the locking lug or locking surface on the rotary latch when the locking mechanism is closed.
- a motor vehicle lock is made available which can be opened with particularly little effort.
- This can be attributed to the fact that the pawl is not only designed to rotate around its axis defined by the pawl bearing bolt. But the pawl can at the same time with regard to their distance from the stationary rotary latch or its axis defined by the rotary latch bearing bolt can be changed.
- the actuating rocker which in turn is part of the motor drive, ensures this variable-distance design of the axis of the pawl.
- the motor vehicle lock according to the invention can be opened with little force and functionally even after years of operation. This is particularly important in connection with motor vehicle patch flap locks, because these often only have the motor drive to open them or otherwise, for example, an additional lock cylinder has to be implemented for emergency opening, which is particularly costly. This is where the main advantages can be seen.
- a motor vehicle lock is shown in the figures.
- the motor vehicle lock is not restrictively a motor vehicle stain flap lock, that is to say a motor vehicle lock which is arranged on or in a stain flap.
- the motor vehicle lock has a locking mechanism 1, 2 consisting essentially of rotary latch 1 and pawl 2.
- a motorized drive 3, 4, 5; 9, 10 realized, with the help of which in particular the locking mechanism 1, 2 in question can be opened. This is what the motor works Drive 3, 4, 5; 9, 10 on the pawl 2 and can be operated remotely, for example, via a switch on the dashboard, an additional remote control or in another way.
- the rotary latch 1 is rotatably mounted on the lock case 6 in question by means of a rotary latch bearing bolt 7 fixed on a lock case 6.
- the lock case 6 is designed as a solid metal plate, as a U-shaped lock case, etc., for example.
- the rotary latch 1 is mounted rotatably about the axis defined in this way on the lock case 6 with the aid of its rotary latch bearing bolt 7 connected to the lock case 6, namely in a stationary manner.
- the pawl 2 has a pawl bearing pin 8 for its storage.
- the pawl bearing pin 8 defines an associated axis for the rotatable mounting of the pawl 2.
- the pawl bearing pin 8 is not fixed to the lock case 6, in contrast to the prior art , but on or on an actuating rocker 9, 10 of the motor drive 3, 4, 5; 9, 10.
- the actuating rocker 9, 10 as part of the motor drive 3, 4, 5; 9, 10 is mounted in or on the lock case 6.
- the actuating rocker 9, 10 has a rocker bearing pin 11 fixed on the lock case 6, which defines an associated axis of the actuating rocker 9, 10 for the rotary movements.
- the pawl 2 can, in particular to open the locking mechanism 1, 2, not only perform a rotary movement around its axis defined by the pawl bearing pin 8 on the actuating rocker 9, 10, but can also pivot the actuating rocker 9, 10 around its axis Swing arm bearing pin 11 follow the defined axis.
- the axis of the pawl 2, and with it the pawl 2 can have a variable distance from the stationary rotary latch 1 relocate, as one can then understand when looking at the individual function positions in FIGS. 1 to 5 or 6 and 7.
- the actuating rocker 9, 10 is a total of the crank mechanism 5, 9, 10 of the motor drive 3, 4, 5; 9, 10 or represents a component of the crank mechanism 5, 9, 10.
- the motor drive 3, 4, 5; 9, 10 via an electric motor 3 and an output worm 4 attached to its output shaft.
- the output worm 4 serves to act on a driven pulley 5 in a rotational manner. 5; 9, 10 connected.
- the rotatable output disk 5 and the actuating rocker 9, 10 define the previously mentioned crank mechanism 5, 9, 10 as part of the motorized drive 3, 4, 5; 9, 10.
- the actuating rocker 9, 10 for its part has two arms with a disk arm 9 and a pawl arm 10. Both arms 9, 10 are pivotably connected to one another, a swivel joint 12 being implemented at this point.
- the disk arm 9, as part of the actuating rocker 9, 10, is rotatably connected to the output disk 5.
- the pawl arm 10 is rotatably mounted on the lock case 6 with the aid of the rocker bearing pin 11, defining the associated axis of the actuating rocker 9, 10.
- the pawl arm 10 not only has the rocker bearing bolt 11, but also the pawl bearing bolt 8 for the rotatable mounting of the pawl 2 about the associated axis is attached to the pawl arm 10.
- the basic structure is also characterized in that the pawl 2 has two arms with a spring arm 2a and a rotary latch arm 2b.
- the spring arm 2a interacts with a stationary spring 13 which is connected to the lock case 6.
- the stationary spring 13 ensures that the spring arm 2a and with it the pawl 2 are pretensioned as a whole in the direction of the rotary latch 1. Consequently, the pawl 2 must work against the force of said spring 13 during an opening movement of the locking mechanism 1, 2.
- the rotary latch arm 2b interacts with the rotary latch 1 and, for this purpose, has the previously mentioned latching lug of the pawl 2 or the associated blocking surface.
- the spring arm 2a and the rotary latch arm 2b are angled and almost at right angles to each other is arranged.
- the embodiment according to FIGS. 6 and 7 works in such a way that the two arms 2a, 2b are arranged one above the other in a plan view of the motor vehicle lock. In both cases, the two arms 2a, 2b are non-rotatably coupled to one another or can also be designed in one piece.
- Fig. 1 the basic position of the motor vehicle lock with the locking mechanism 1, 2 is shown in the closed position.
- the respective locking lugs on the rotary latch 1 and the pawl 2 interlock.
- the motor drive 3, 4, 5; 9, 10 acted upon in such a way that the output disk 5 executes a clockwise movement indicated in FIG. 1.
- the output disk 5 pivots the actuating rocker 9, 10 and at the same time the two arms 9, 10 of the actuating rocker 9, 10 are aligned at an angle to each other.
- the pawl bearing pin 8 is displaced together with the actuating rocker 9, 10, namely when passing from Fig. 1 to Fig. 2 to the right.
- the pawl 2 is lifted off the rotary latch 1, which can consequently open around its axis defined by the rotary latch bearing bolt 7 in a clockwise direction, for example with the aid of a spring.
- the spring 13 is acted upon with the aid of the spring arm 2a.
- FIGS. 6 and 7 of the modified exemplary embodiment A comparable sequence of functions is shown in FIGS. 6 and 7 of the modified exemplary embodiment.
- the primary difference to the embodiment variant described so far is that in this case the spring arm 2a and the rotary latch arm 2b are superimposed as both components of the pawl 2 that are non-rotatably coupled to one another in a plan view of the motor vehicle lock.
- the spring arm 2a of the pawl 2 does not work directly on the spring 13 attached to the lock case 6, but an intermediate transmission lever 14 is provided in this case.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019128589.5A DE102019128589A1 (de) | 2019-10-23 | 2019-10-23 | Kraftfahrzeug-schloss, insbesondere kraftfahrzeug-heckklappenschloss |
| PCT/DE2020/100885 WO2021078328A1 (de) | 2019-10-23 | 2020-10-14 | Kraftfahrzeug-schloss, insbesondere kraftfahrzeug-heckklappenschloss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4048847A1 true EP4048847A1 (de) | 2022-08-31 |
Family
ID=73039757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20799985.5A Pending EP4048847A1 (de) | 2019-10-23 | 2020-10-14 | Kraftfahrzeug-schloss, insbesondere kraftfahrzeug-heckklappenschloss |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4048847A1 (de) |
| KR (1) | KR20220084169A (de) |
| DE (1) | DE102019128589A1 (de) |
| WO (1) | WO2021078328A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021102105A1 (de) * | 2021-01-29 | 2022-08-04 | Brose Schließsysteme GmbH & Co. Kommanditgesellschaft | Kraftfahrzeugschloss |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3725075C1 (de) * | 1987-07-29 | 1988-08-18 | Kiekert Gmbh Co Kg | Kraftfahrzeugtuerverschluss |
| DE19505779A1 (de) * | 1995-02-20 | 1996-08-29 | Bocklenberg & Motte Bomoro | Kraftfahrzeug-Klappenschloß, insbesondere Heckklappenschloß |
| US6076868A (en) * | 1999-02-09 | 2000-06-20 | General Motors Corporation | Vehicle compartment latch |
| DE102012102723A1 (de) * | 2011-09-23 | 2013-03-28 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Kraftfahrzeugtürverschluss |
| DE102012107145A1 (de) * | 2012-08-03 | 2014-02-20 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Kraftfahrzeugtürverschluss |
| DE102012102724A1 (de) * | 2012-03-29 | 2013-10-02 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Kraftfahrzeugtürverschluss |
| DE102013114180A1 (de) * | 2013-12-17 | 2015-06-18 | Huf Hülsbeck & Fürst Gmbh & Co. Kg | Kraftfahrzeugtürverschluss |
-
2019
- 2019-10-23 DE DE102019128589.5A patent/DE102019128589A1/de active Pending
-
2020
- 2020-10-14 WO PCT/DE2020/100885 patent/WO2021078328A1/de not_active Ceased
- 2020-10-14 EP EP20799985.5A patent/EP4048847A1/de active Pending
- 2020-10-14 KR KR1020227017123A patent/KR20220084169A/ko active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102019128589A1 (de) | 2021-04-29 |
| WO2021078328A1 (de) | 2021-04-29 |
| KR20220084169A (ko) | 2022-06-21 |
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