EP3951121A1 - Vehicle lock with pulling device and vehicle with such a vehicle lock - Google Patents

Abstract

The invention relates to a vehicle lock (1) with a rotary latch arrangement (2) and a closing device (3) for locking and closing doors or flaps of motor vehicles, in particular doors or flaps of agricultural machines such as tractors or construction machines, and a vehicle with such a vehicle lock (1).

Description

The invention relates to a vehicle lock with a rotary latch arrangement for locking and locking doors or hatches of motor vehicles, in particular doors or hatches of agricultural machines such as tractors or construction machines, and a vehicle with such a vehicle lock.

Such a door lock is, for example, from DE 196 53 169 A1 known. This door lock has a rotary latch arrangement with a lock case in which two rotary latches are rotatably mounted. The rotary latches are used to hold a locking bolt and have a pre-locking position or safety locking position in which the lock or the door is not completely closed, and a main or final locking position in which the lock or the door is completely closed . A pawl is provided to lock the rotary latches in the pre-locked position or end-locked position. The well-known door lock has proven itself.

Locks are known from the passenger car sector that have a closing device, by means of which the lock is automatically brought from its safety locking position into its fully closed final locking position, without the operator having to pull the vehicle door further. This is done, for example, by driving the locking bolt or the lock.

In addition, from the DE 10 2013 012 117 A1 a vehicle lock for locking doors or flaps of motor vehicles, in particular doors or flaps of agricultural machines, such as tractors, or construction machinery is known. The vehicle lock has a rotary latch arrangement with two rotatably mounted rotary latches for gripping and holding a locking bolt in a pre-locked position or a final locked position and a pawl for locking the two rotary latches in their pre-locked position or final locked position. In addition, the vehicle lock has a closing device with which the Rotary latches are each connected in a rotary latch closing direction from the pre-locked position to the end locked position so that they can be driven in a rotatable manner. For this purpose, there is a drive lever and a closing lever connected to it. The drive lever can also be driven in a rotatable manner by a drive motor from an unactuated to an actuated position.

This vehicle lock with the closing device has proven itself.

The object of the present invention is to provide a vehicle lock with a rotary latch arrangement for locking and locking doors or flaps of motor vehicles, in particular doors or flaps of agricultural machines, such as tractors or combine harvesters, or construction machines, which has a closing device, the vehicle lock always can be opened manually. Furthermore, the normal closing function of the lock should not be impaired by the closing device. In particular, the closing function of the lock should not be impaired even if the closing device fails.

A further object is to provide a vehicle with such a vehicle door lock.

These objects are achieved by a vehicle lock according to claim 1 and a vehicle according to claim 16. Advantageous developments of the invention are characterized in the subsequent dependent claims.

Figur 1:

Eine perspektivische Ansicht eines erfindungsgemäßen Fahrzeug-schlosses

Figur 2:

Eine weitere perspektivische, motorseitige Ansicht eines erfindungs-gemäßen Fahrzeugschlosses

Figur 3:

Eine motorseitige, rückseitige Draufsicht auf das erfindungsgemäße Fahrzeugschloss

Figur 4:

Eine vorderseitige Draufsicht auf das erfindungsgemäße Fahrzeugschloss ohne eine Deckenwandung eines Schlosskastens in geöffneter Stellung des Fahrzeugschlosses, mit einem im Schlosskasten angeordneten Stützblech

Figur 5:

Eine vorderseitige Draufsicht auf das erfindungsgemäße Fahrzeugschloss gemäß Figur 4 in Sicherheitsrast bzw. Vorraststellung

Figur 6:

Eine vorderseitige Draufsicht auf das erfindungsgemäße Fahrzeugschloss gemäß Figur 4 in vollständig geschlossener Stellung

Figur 7:

Eine vorderseitige Draufsicht auf das erfindungsgemäße Fahrzeugschloss mit zwei Sensoren ohne Schlosskasten in geöffneter Stellung des Fahrzeugschlosses

Figur 8:

Eine vorderseitige Draufsicht auf einen Drehfallenmechanismus und einen Auslösemechanismus des erfindungsgemäßen Fahrzeugschlosses in geöffneter Stellung des Fahrzeugschlosses, verdeckte Bauteile sind gestrichelt dargestellt

Figur 9:

Eine vorderseitige Draufsicht gemäß Figur 8 in Sicherheitsrast bzw. Vorraststellung des Fahrzeugschlosses

Figur 10:

Eine vorderseitige Draufsicht gemäß Figur 8 in geschlossener Stellung des Fahrzeugschlosses

Figur 11:

Eine vorderseitige Draufsicht gemäß Figur 8 in geschlossener Stellung des Fahrzeugschlosses mit betätigtem und verriegeltem bzw. gespeicherten Auslösemechanismus

Figur 12:

Eine vorderseitige Draufsicht gemäß Figur 8 in wieder geöffneter Stellung des Fahrzeugschlosses mit noch betätigtem, aber frei gege-benem Auslösemechanismus

Figur 13:

Eine vorderseitige Draufsicht gemäß Figur 8 in wieder geöffneter Stellung des Fahrzeugschlosses mit Auslösemechanismus wieder in der Ausgangsstellung

Figur 14:

Eine Draufsicht auf einen Auslösehebel, ein Sperrelement und eine zweite Getriebestufe, vor Ingangsetzung eines Antriebsmotors, zwei-tes Hohlrad nicht gesperrt

Figur 15:

Eine Draufsicht auf einen Auslösehebel, ein Sperrelement und eine zweite Getriebestufe, nach Ingangsetzung des Antriebsmotors, zwei-tes Hohlrad verriegelt zur Kraftübertragung

Figur 16:

Eine Draufsicht auf einen Auslösehebel, ein Sperrelement und eine zweite Getriebestufe, zweites Hohlrad entriegelt

Figur 17:

Eine perspektivische Ansicht eines Getriebes und des Antriebsmo-tors

Figur 18:

Eine perspektivische Ansicht eines Planetenträgers des Getriebes

Figur 19:

Eine perspektivische Ansicht eines Sonnenrads einer zweiten Getrie-bestufe des Getriebes

Figur 20:

Verschiedene perspektivische, teilweise explosionsartige Darstellungen des Getriebes und des Antriebsmotors

Figur 21:

Ein Funktionsdiagramm von drei Mikroschaltern des erfindungsgemäßen Fahrzeugschlosses

Figur 22:

Eine perspektivische Explosionsdarstellung des erfindungsgemäßen Fahrzeugschlosses

Figur 23:

Eine perspektivische Darstellung der beiden Getriebestufen mit einem Antriebsradlagerungsbolzen

The invention is explained in more detail below by way of example using a drawing. Show it:

Figure 1:

A perspective view of a vehicle lock according to the invention

Figure 2:

Another perspective motor-side view of an inventive vehicle lock

Figure 3:

A motor-side, rear plan view of the vehicle lock according to the invention

Figure 4:

A front plan view of the vehicle lock according to the invention without a top wall of a lock case in the open position of the vehicle lock, with a support plate arranged in the lock case

Figure 5:

A front plan view of the vehicle lock according to the invention figure 4 in safety detent or pre-detent position

Figure 6:

A front plan view of the vehicle lock according to the invention figure 4 in fully closed position

Figure 7:

A front plan view of the vehicle lock according to the invention with two sensors without a lock case in the open position of the vehicle lock

Figure 8:

A front plan view of a rotary latch mechanism and a triggering mechanism of the vehicle lock according to the invention in the open position of the vehicle lock; hidden components are shown in dashed lines

Figure 9:

A front plan view according to FIG figure 8 in safety detent or pre-detent position of the vehicle lock

Figure 10:

A front plan view according to FIG figure 8 in the closed position of the vehicle lock

Figure 11:

A front plan view according to FIG figure 8 in the closed position of the vehicle lock with actuated and locked or stored release mechanism

Figure 12:

A front plan view according to FIG figure 8 when the vehicle lock is in the open position again with the release mechanism still actuated but released

Figure 13:

A front plan view according to FIG figure 8 in the reopened position of the vehicle lock with the release mechanism back in the starting position

Figure 14:

A top view of a release lever, a locking element and a second gear stage, before a drive motor is started, the second ring gear not locked

Figure 15:

A top view of a release lever, a locking element and a second gear stage, after the drive motor has been started, the second ring gear locked for power transmission

Figure 16:

A top view of a release lever, a locking element and a second gear stage, second ring gear unlocked

Figure 17:

A perspective view of a gearbox and the drive motor

Figure 18:

A perspective view of a planet carrier of the transmission

Figure 19:

A perspective view of a sun gear of a second gear stage of the transmission

Figure 20:

Various perspective, partly exploded representations of the gearbox and the drive motor

Figure 21:

A functional diagram of three microswitches of the vehicle lock according to the invention

Figure 22:

A perspective exploded view of the vehicle lock according to the invention

Figure 23:

A perspective view of the two gear stages with a drive wheel bearing bolt

The vehicle lock 1 according to the invention has a rotary latch arrangement 2 and a closing device 3 .

The rotary latch arrangement 2 has a lock case 4 , a single rotary latch 5 arranged therein, a drive wheel 6 and a drive wheel pawl or pawl 7 . It is therefore a simple rotary latch arrangement with only a single rotary latch 5. The cuboid lock case 4 serves to support the rotary latch 5, the drive wheel 6 and the pawl 7. For this purpose, the lock case 4 preferably has a rear wall 8, one opposite the rear wall 8 and parallel to this, in particular plate-shaped, cover or top wall 9, two parallel longitudinal walls 10a perpendicular to the rear wall 8 and two parallel transverse or side walls 10b perpendicular to the longitudinal walls 10a ( Fig.1-6 ). The lock case 4 is preferably made of plastic.

In the lock case 4 there is also a groove-shaped locking bolt recess 11, which is known per se and extends continuously through the rear wall 8, the cover 9 and the longitudinal wall 10a, which creates space for receiving a locking bolt 12, which will be discussed in more detail below. The locking bolt recess 11 extends from the longitudinal wall 10a into the rear wall 8 and the cover 9 and ends in an expediently round, preferably circular, recess base. The locking bolt 12 is usually fixed to the vehicle body (not shown). And the rotary latch arrangement 2 is usually firmly connected to the vehicle door or flap.

The rotary latch 5 is arranged inside the lock case 4 . It is preferably on a rotary latch bearing bolt 13 about a rotary latch axis of rotation 5a pivoted. The rotary latch bearing bolt 13 is expediently firmly connected to the cover 9 . The rotary latch axis of rotation 5a is preferably perpendicular to the cover 9. As a result, the rotary latch 5 is connected to the lock case 4, preferably the cover 9, so that it can rotate about the rotary latch axis of rotation 5a and is otherwise non-rotatably and immovably connected.

The rotary latch 5 is plate-shaped in a manner known per se, for example made of steel, and extends parallel to the cover 9 and at a small distance from it.

The rotary latch 5 also has, in a manner known per se, a locking nose 14 and a groove-shaped locking bolt receptacle 15 for receiving the locking bolt 12 . The locking bolt receptacle 15 adjoins the bolt lug 14, in particular when viewed in a rotary latch closing direction 16a.

The rotary latch 5 also has two opposite upper sides 17 of the rotary latch and a peripheral wall 18 of the rotary latch. In addition, the rotary latch 5 has an actuating lug 19 . The actuating lug 19 adjoins the locking bolt receptacle 15 as seen in the rotary latch closing direction 16a. Or the locking bolt receptacle 15 is arranged between the actuating nose 19 and the locking nose 14 .

Furthermore, the rotary latch 5 , preferably the rotary latch peripheral wall 18 , has a rotary latch toothing 20 . The rotary latch toothing 20 has a plurality, preferably four, rotary latch teeth 21 adjacent to one another in the circumferential direction. The rotary latch toothing 20 is preferably arranged radially opposite the locking bolt receptacle 15 .

In addition, the rotary latch 5 has a mandrel 22 which protrudes from the upper side 17 of the rotary latch facing the rear wall 8 . The mandrel 22 serves as a signal transmitter for a first sensor 104 assigned to the rotary latch 5, which will be discussed in more detail below. In addition, the mandrel 22 is preferably arranged in the area of the actuating nose 19 .

Furthermore, the rotary latch arrangement 2 has a rotary latch spring 23 . The rotary latch spring 23 is connected to the rotary latch 5 and drives it in a rotary latch opening direction 16b opposite to the rotary latch closing direction 16a. The rotary latch 5 is therefore connected to the rotary latch spring 23, preferably directly, so that it can be driven in the rotary latch opening direction 16b about the rotary latch axis of rotation 5a. The rotary latch spring 23 therefore tends to keep the rotary latch 5 in the open position. The rotary latch spring 23 is supported directly on the rotary latch 5 at one end and on the lock case 4 at the other end.

As already explained, the rotary latch arrangement 2 also has the drive wheel 6 .

The drive wheel 6 is also arranged inside the lock case 4 . It is preferably mounted on a drive wheel bearing bolt 24 so as to be rotatable about a drive wheel axis of rotation 6a. The drive wheel axis of rotation 6a is preferably parallel to the rotary latch axis of rotation 5a and at a distance from it. The drive wheel bearing bolt 24 is expediently firmly connected to the cover 9, in particular screwed. As a result, the drive wheel 6 is rotatably connected to the cover 9 about the drive wheel axis of rotation 6a and otherwise non-rotatably and non-displaceably connected. Furthermore, an axial grooved ball bearing 109 ( 23 ) stored. The axial grooved ball bearing 109 has, in a manner known per se, two bearing housing disks 111 which are rotatably connected to one another via a ball ring 110 . One of the two bearing housing discs 111 is fixed in the drive wheel bearing bolt 24 .

The drive wheel 6 is also preferably designed in the form of a plate, for example made of steel, and extends parallel to the cover 9 and at a small distance from it. In addition, the drive wheel 6 is arranged parallel to the rotary latch 5 and on the same level as the latter.

The drive wheel 6 also has two opposite drive wheel tops 25 and a drive wheel peripheral wall 26 running in the circumferential direction.

In addition, the drive wheel 6, in particular the drive wheel peripheral wall 26, has a drive wheel locking lug 27 and a first and a second drive wheel locking recess 28a;b. The two drive wheel latching recesses 28a;b are arranged on both sides of the drive wheel latching lug 27, viewed in the circumferential direction of the drive wheel 6.

Furthermore, the drive wheel 6 , preferably the drive wheel peripheral wall 26 , has drive wheel toothing 29 . The drive wheel toothing 29 has a plurality of, preferably three, drive wheel teeth 30 adjacent to one another in the circumferential direction. The toothing of the drive wheel 29 also engages in the toothing of the rotary latch 20 or interacts with it and is therefore designed to correspond to it.

Since the two toothings 20; 29 mesh, the rotary latch 5 driven by the rotary latch spring 23 drives the drive wheel 6 in a drive wheel opening direction 31b. The drive wheel opening direction 31b is opposite to the rotary latch opening direction 16b. The same applies to a drive wheel closing direction 31a and the rotary latch closing direction 16a.

The drive wheel 6 is therefore connected, in particular via the rotary latch 5, to the rotary latch spring 23 so that it can be driven in the drive wheel opening direction 31b about the drive wheel axis of rotation 6a. A separate drive wheel spring for the drive wheel 6 is preferably not present. But this can be.

In addition, the drive wheel 6 has several, preferably three, driver pins 32 which protrude from the top side 25 of the drive wheel facing away from the cover 9 . The driving pins 32 are used for the non-rotatable connection of the drive wheel 6 with the closing device 3, which will be discussed in more detail below. The driver pins 32 are preferably arranged adjacent to one another as viewed in the circumferential direction of the drive wheel 6 .

To lock the rotary latch 5, the door lock 1 according to the invention also has the pawl 7, which locks the rotary latch 5 and the drive wheel 6 in their final latching position ( 6 and 10 ) or a pre-locked position ( figure 5 and 9 ) holds or releases the rotary latch 5 and the drive wheel 6 ( 11 ).

The preferably plate-shaped pawl 7 preferably has two, in particular planar, pawl tops 33 and a pawl peripheral wall 34 . The pawl 7 preferably also extends parallel to the cover 9. The pawl 7 is also preferably elongate and has a first pawl end 41a and a second pawl end 41b.

In addition, the pawl 7 is arranged parallel to the rotary latch 5 and the drive wheel 6 and on the same level as these.

In addition, the pawl 7 is mounted at one end, at its first pawl end 41a, preferably on a pawl bearing bolt 35, so as to be rotatable about a pawl axis of rotation 7a. The pawl bearing pin 35 is expediently firmly connected to the cover 9 . The pawl 7 is thus rotatable about the pawl axis of rotation 7a and otherwise non-rotatable and immovable with the lock case 4, preferably the cover 9, connected. The pawl axis of rotation 7a is spaced from the rotary latch axis of rotation 5a and the drive wheel axis of rotation 6a and preferably parallel to them.

The pawl 7, preferably the peripheral wall 34 of the pawl, has a pawl latching nose 36 at its second pawl end 41b. The pawl detent 36 points towards the drive wheel 6 and interacts with the drive wheel 6 in a locking manner, which will be discussed in more detail below.

In particular, when the door lock 1 and the rotary latches 5 are in the open position, the pawl latching lug 36 initially rests against the peripheral wall of the drive wheel 26 outside of the two drive wheel locking recesses 28a;b. For this purpose, the rotary latch arrangement 2 preferably has a pawl spring 37, with which the pawl 7 is rotatably driven about the pawl axis of rotation 7a in a pawl locking direction 38a. As a result, the pawl spring 37 drives the pawl 7 in such a way that the pawl detent 36 is pressed against the drive wheel 6 . The pawl spring 37 is supported at one end on the pawl 7 , preferably a spring support arm 39 , and on the lock case 4 at the other end.

The pawl 7 also has a pawl actuating pin 40 . The pawl actuating pin 40 is preferably arranged between the two pawl ends 41a; b and protrudes from the top side 33 of the pawl facing the rear wall 8 .

Between the two pawl ends 41a; b, the pawl peripheral wall 34 also has an actuating area 42, preferably a concavely curved area. The actuation area 42 faces the drive wheel 6 .

The vehicle lock 1 also has a release mechanism 43 for releasing the locking of the rotary latch 5 and the drive wheel 6 .

The triggering mechanism 43 has a triggering lever 44 , a storage lever 45 and a control disk 46 .

In addition, the triggering mechanism 43 is arranged in a different plane than the rotary latch arrangement 2 . A support plate 47 is preferably provided between the rotary latch arrangement 2 and the triggering mechanism 43 . The support plate 47 thus serves to mechanically separate the rotary latch arrangement 2 and the triggering mechanism 43.

The release lever 44 is used to unlock the pawl 7 and preferably a gear 75. The pawl 7 can be actuated by means of the release lever 44 in such a way that the locking of the drive wheel 6 by the pawl 7 is released.

The preferably plate-shaped release lever 44 preferably has two, in particular planar, release lever tops 48 and a release lever peripheral wall 49 . The release lever 44 preferably also extends parallel to the cover 9. The release lever 44 is also preferably elongate and has a first release lever end 50a and a second release lever end 50b.

In addition, the release lever 44 is mounted at one end, at its first release lever end 50a, on the pawl bearing bolt 35 so as to be rotatable about a release lever rotation axis 44a coaxial with the pawl rotation axis 7a. The release lever 44 can therefore be rotated about the release lever axis of rotation 44a and is otherwise connected to the cover 9 in a non-rotatable and non-displaceable manner.

The release lever 44, preferably the release lever peripheral wall 49, has a release lever latching nose 51 on its second release lever end 50b. The release lever detent 51 points towards the storage lever 45 .

The release lever 44 also has a release pin 52 . The release pin 52 is preferably arranged on the second end 50b of the release lever and protrudes from the upper side 48 of the release lever facing the rear wall 8 . The release pin 52 also projects out of the lock case 4 . It preferably reaches through a slot in the lock case 4, in particular in the rear wall 8. The release pin 52 thus establishes the connection of the release mechanism 43 with an actuating mechanism arranged outside of the lock case 4, e.g. B. a push button or a pull handle or the like.

The release lever 44 also has an unlocking pin 53 . The unlocking pin 53 is preferably arranged between the two release lever ends 50a; b and also protrudes from the release lever top 48 facing the rear wall 8 .

Between the two release lever ends 50a;b, the release lever peripheral wall 49 also has a preferably concavely curved actuating area 54. The actuation area 54 faces away from the control disk 46 . The actuation portion 54 also cooperates with the pawl actuation pin 40, which will be discussed in more detail below.

The control disk 46 preferably has two, in particular planar, control disk upper sides 57 and a control disk peripheral wall 58 . In addition, the control disk 46 has a central cutout 59 that extends from one upper side 57 of the control disk to the other. Furthermore, the control disk 46 has three pin receiving recesses 60 . The pin receiving recesses 60 also extend through the control disk 46 from one control disk top side 57 to the other. In addition, they are preferably open towards the central recess 59 . The pin receiving recesses 60 are also arranged adjacent to one another in the circumferential direction of the control disk 46 . In addition, the pin receiving recesses 60 serve to receive the driver pins 32 of the drive wheel 6. The driver pins 32 of the drive wheel 6 are therefore arranged in the pin receiving recesses 60 in a form-fitting manner. As a result, the control disc 46 is connected to the drive wheel 6 in a rotationally fixed manner or non-rotatably about the drive wheel axis of rotation 6a.

In addition, the peripheral wall of the control disk 58 has a first circular-cylindrical peripheral wall section 61 and a second circular-cylindrical peripheral wall section 62 . The first circular-cylindrical peripheral wall section 61 has a larger diameter than the second circular-cylindrical peripheral wall section 62 . The first circular-cylindrical peripheral wall section 61 and the second circular-cylindrical peripheral wall section 62 merge into one another via a flank 63 .

In addition, the peripheral wall of the control disk 58 has a stop section 64 . The flank 63 is arranged at one end of the second circular-cylindrical peripheral wall section 62 and the stop section 64 is on other end of the second circular-cylindrical peripheral wall section 62 is arranged. It is arranged in particular between the first and the second circular-cylindrical peripheral wall section 61; 62.

The storage lever 45 has two storage lever arms 65; 66 connected to one another at one end. The two storage lever arms 65; 66 are angled towards one another. In addition, the preferably plate-shaped storage lever 45 has two, in particular planar, storage lever tops 67 and a storage lever peripheral wall 68 . The storage lever 45 preferably also extends parallel to the cover 9.

In addition, the storage lever 45 is mounted at a free end of the first storage lever arm 65 on a storage lever bearing pin 69 so that it can rotate about a storage lever axis of rotation 45a. The accumulator lever bearing pin 69 is expediently firmly connected to the cover 9, preferably designed in one piece with it. The storage lever 45 is therefore rotatable about the storage lever axis of rotation 45a and is otherwise connected to the cover 9 in a non-rotatable and non-displaceable manner. The storage lever axis of rotation 45a is spaced apart from the other axes of rotation 5a; 6a; 7a; 44a and preferably parallel to them.

The free end of the second storage lever arm 66 facing away from the first storage lever arm 65 also serves as a storage lever sensing or control lug 70. The storage lever control lug 70 is preferably of rounded design. The accumulator lever control lug 70 rests against the peripheral wall 58 of the control disk.

For this purpose, the triggering mechanism 43 has a storage lever spring 71 with which the storage lever 45 is connected so that it can be rotated about the storage lever axis of rotation 45a in a storage lever actuation direction 72 . As a result, the storage lever spring 71 drives the storage lever 45 in such a way that the storage lever control lug 70 is pressed against the peripheral wall 58 of the control disk. The storage lever spring 71 is supported at one end on the storage lever 45, in particular a groove in the storage lever peripheral wall 68, and at the other end on the lock case 4.

Furthermore, the storage lever 45, preferably the storage lever peripheral wall 68, has a storage lever latching lug 73. The storage lever detent 73 is arranged between the two ends of the storage lever 45 and points towards the release lever 44 . The storage lever detent 73 interacts with the release lever detent 51, which will be discussed in more detail below.

The closing device 3 of the door lock 1 according to the invention is used for the automatic, automatic closing of the respective vehicle door or hatch when the rotary latch 5 is in the pre-locked position or safety lock ( figure 5 and 9 ) where the door or hatch is not fully closed.

For this purpose, the closing device 3 has a drive device, preferably a drive motor 74, a gear 75 and a control device 76, in particular a logic box. The control device 76 can be arranged at any point.

The drive motor 74 is preferably an electric motor. The drive motor 74 has a drive shaft 77 which is non-rotatably connected to the gear 75 . For this purpose, the drive shaft 77 has a shape that deviates from the circular shape. The otherwise circular-cylindrical drive shaft 77 preferably has a flattening. The drive motor 74 is preferably completely replaceable.

Seen from the drive motor 74, the gear 75 has a first and a second gear stage 78-1; 78-2. Both gear stages 78-1; 78-2 each have a planetary gear 79-1; 79-2. The two planetary gears 79-1; 79-2 each have a ring gear 80-1; 80-2, a planetary carrier 81-1; 81-2, several, preferably five, planet gears 82-1; 82-2 and a sun gear 83- 1;83-2 on.

In addition, the gear 75 has a gear center axis 75a which is coaxial with the drive wheel axis of rotation 6a.

The sun gear 83-1 of the first gear stage 78-1 is connected to the drive motor 74, preferably to the drive shaft 77, so as to be non-rotatable about the central gear axis 75a. For this purpose, the sun wheel 83 - 1 is preferably designed as a hollow cylinder and is pushed onto the drive shaft 77 in a form-fitting manner. Furthermore, the sun wheel 83-1 naturally has external teeth in a manner known per se.

The planetary carrier 81-1 of the first gear stage 78-1 is preferably designed like a disk and has two planetary carrier tops 84-1 and a circumferential planetary carrier peripheral wall 85-1. The peripheral wall of the planetary carrier 85-1 is preferably circular-cylindrical. In addition, the planetary carrier 81-1 has a central planetary carrier recess 86-1 that extends from one planetary carrier top side 84-1 to the other through the planetary carrier 81-1.

Furthermore, the planet carrier 81-1 of the first gear stage 78-1 has several, preferably five, bearing journals 87-1, preferably bearing needles. Bearing needles have the advantage that they fit very precisely. The bearing journals 87-1 are used for the rotatable mounting of the planet gears 82-1. They protrude from the top side 84 - 1 of the planet carrier facing the drive motor 74 . The bearing journals 87-1 are arranged adjacent to one another as viewed in a circumferential direction of the planetary carrier 81-1. In addition, they are distributed around the planet carrier recess 86-1.

In addition, the planet carrier 81-1 of the first gear stage 78-1 has several, preferably five, driver grooves 88-1, which extend from the planet carrier peripheral wall 85-1 into the planet carrier 81-1. The driving grooves 88-1 are arranged adjacent to one another, viewed in the circumferential direction of the planetary carrier 81-1.

In addition, the planetary carrier 81-1 of the first gear stage 78-1 preferably has a plurality of, preferably five, grooves 89-1, which extend from the planetary carrier recess 86-1 into the planetary carrier 81-1. The grooves 89-1 are arranged adjacent to each other as seen in the circumferential direction of the planetary carrier 81-1. They are used to transmit power to the sun gear 83-2 of the second gear stage 78-2. For this purpose, the sun wheel 83-2 has radially protruding cams 107-2 on its motor-side end. The cams 107-2 are arranged in a form-fitting manner in the grooves 89-1 of the planet carrier 81-1 of the first gear stage 78-1. As a result, the sun wheel 83-2 of the second gear stage 78-2 is non-rotatably connected about the gear axis 75b to the planet carrier 81-1 of the first gear stage 78-1.

The planet wheels 82-1 of the first gear stage 78-1 are preferably designed as hollow cylinders. In a manner known per se, they have an external toothing that corresponds to the external toothing of the sun wheel 83-1. In addition, they are rotatably mounted on one of the bearing journals 87-1 about their respective planetary wheel axis of rotation.

The ring gear 80-1 of the first gear stage 78-1 has a ring gear wall 90-1 with an outer wall surface 91-1 and an inner toothing corresponding to the outer toothing of the planet wheels 82-1.

In addition, the ring gear 80-1 of the first gear stage 78-1 has several, preferably three, stop pins 92-1, which protrude from the outer wall surface 91-1. They preferably protrude radially from the outer wall surface 91-1 in relation to the transmission center axis 75a. The stop pins 92-1 have a preferably circular-cylindrical outer bearing surface 93-1. In addition, there is a ramp 94-1 in each case adjacent to the stop pins 92-1. The ramp 94-1 extends from the outer wall surface 91-1 to the stop pin 92-1 and ends at the level of the outer bearing surface 93-1.

Viewed in the circumferential direction of ring gear 80-1, opposite ramp 94-1, stop pins 92-1 each have a pin stop surface 95-1.

In addition, the ring gear 80-1 of the first gear stage 78-1 is connected to the lock case 4 so that it cannot rotate about the central gear axis 75a. The ring gear 80-1 is arranged in particular in a tubular housing connection piece 55 which adjoins the lock case 4 and protrudes outwards from the latter and is connected to it in a non-rotatable manner about the central transmission axis 75a. The housing socket 55 is in turn firmly connected to the lock case 4 . As a result, in a manner known per se, a rotation of the sun gear 83-1 about the central axis 75a of the transmission causes a rotation of the planetary carrier 81-1 about the central axis 75a of the transmission, which will be discussed in more detail below.

As already explained, the second gear stage 78-2 also has a ring gear 80-2, a planetary carrier 81-2, planetary gears 82-2 and a sun gear 83-2. These are designed and arranged essentially analogously to the ring gear 80-1, the planetary carrier 81-1, the planetary gears 82-1 and the sun gear 83-1 of the first gear stage 78-1. Ie the second gear stage 78-2 includes, analogously to the above description, two planet carrier tops 84-2, a planet carrier peripheral wall 85-2, a planet carrier recess 86-2, bearing journals 87-2, driver grooves 88-2, grooves 89-2, a ring gear wall 90-2 with outer wall surface 91-2, abutment pin 92-2, bearing surface 93-2, ramp 94-2 and pin abutment surface 95-2.

However, as already described above, the sun gear 83-2 of the second gear stage 78-2 is non-rotatably connected to the planetary carrier 81-1 of the first gear stage 78-1 about the central gear axis 75a. In particular, it is inserted into this and preferably pressed with it.

The sun wheel 83-2 of the second gear stage 78-2 protrudes from the planet carrier top 84-1 of the planet carrier 81-1 of the first gear stage 78-1, which faces away from the drive motor 74.

In addition, the planetary carrier 81-2 of the second gear stage 78-2 is non-rotatably connected to the drive wheel 6 about the central gear axis 75a. These are preferable the driving pins 32 of the drive wheel 6 are each arranged in one of the driving grooves 88-2. The driver grooves 88-2 thus serve to receive the driver pins 32 of the drive wheel 6 in a form-fitting manner and thus to connect the drive wheel 6 in a rotationally fixed manner to the planetary carrier 81-2 of the second gear stage 78-2. The control disc 46 is arranged between the drive wheel 6 and the planet carrier 81-2 of the second gear stage 78-2.

In contrast to the ring gear 80-1, the ring gear 80-2 of the second gear stage 78-2 is not permanently fixed to the lock case 4, but rather freely rotatable in a non-locked initial state about the central gear axis 75a relative to the lock case 4. In addition, the ring gear 80-2 also arranged in the housing socket 55.

Thus, both gear stages 78-1; 78-2 are arranged within the housing socket 55, resulting in a compact design. In particular because the housing socket 55 is firmly connected to the lock case 4, in particular the rear wall 8. The housing socket 55 is preferably formed in one piece with the rear wall 8 and preferably also with the transverse and longitudinal walls 10a; b. In particular, everything is made of plastic.

Ring gear 80-2 is connected to lock case 4 via planet gears 82-2 and planet carrier 81-2 of second gear stage 78-2. For this purpose, the other or second bearing housing disk 111 is fixed to the planet carrier 81-2 ( 23 ).

The ring gear 80-2 of the second gear stage 78-2 is always freely rotatably connected to the lock case 4 in a first ring gear rotation direction 96a.

However, the rotation of the ring gear 80-2 in a second ring gear direction of rotation 96b opposite to the first ring gear direction of rotation 96a can be blocked. For this purpose, the second gear stage 78-2 has a blocking element 97 ( 14-16 ).

The locking element 97 is preferably designed as a substantially cuboid block and has two opposing block tops 98 and one peripheral block peripheral wall 99 on. The block peripheral wall 99 also has a block stop surface 100 and a spring support surface 101 . The spring support surface 101 serves to support a blocking element spring 102. The block stop surface 100 and the spring support surface 101 merge into one another or directly adjoin one another.

Furthermore, the blocking element 97 is mounted in the lock case 4 so that it can be displaced back and forth in a direction perpendicular to the central axis 75a of the gear mechanism. In particular, the locking element 97 has a position that locks the second ring gear 80-2 ( 15 ) and a position releasing the second ring gear 80-2 ( 16 ), which will be discussed in more detail below. The locking element 97 is connected to the locking element spring 102 so that it can be driven into its locking position. Or the blocking element spring 102 urges the blocking element 97 into its locking position. The locking element spring 102 is preferably supported at one end on the spring support surface 101 and at the other end on the lock case 4 .

In addition, the blocking element 97 preferably has a block actuating recess 103 that preferably runs continuously from one block top side 98 to the other. The block actuating recess 103 is preferably located centrally. It is used to unlock the blocking element 97 by means of the release lever 44. For this purpose, the release pin 53 of the release lever 44 engages in the block actuating recess 103.

The control device 76 has two sensors 104; 105 and a control unit, not shown, which is in particular electronic.

The sensors 104; 105 are preferably tactile sensors, preferably microswitches.

The first sensor 104 interacts with the rotary latch 5 and the second sensor 105 interacts with the pawl 7 . They are used to detect the position of the rotary latch 5 or the pawl 7 each of the sensors 104; 105 by microswitches. These each have a first position in which the circuit is closed and a second position in which the circuit is open. The first sensor 104 is arranged adjacent to the rotary latch 5 . The second sensor 105 is arranged adjacent to the pawl 7 .

The mode of operation of the vehicle door or hatch lock 1 according to the invention is now explained below:
In an open position of the vehicle door or lid lock 1 ( 4 , 7 , 8th , 12 and 13 ) the locking bolt 12 is located outside of the lock case 4 and outside of the locking bolt receptacle 15 of the rotary latch 5. The locking bolt receptacle 15 points towards the locking bolt 12. The rotary latch 5 is pushed into the open position by the rotary latch spring 23 . The rotary latch 5 rests against the lock case 4 in such a way that further rotation of the rotary latch 5 in a rotary latch opening direction 16b is blocked. The drive wheel 6 is pressed or driven by the rotary latch 5 into its open position, since the rotary latch 5 and the drive wheel 6 are interlocked via the teeth 20;29.

Furthermore, the pawl 7 lies under the pressure of the pawl spring 37 with its pawl locking lug 36 on the peripheral wall 26 of the drive wheel. The pawl 7 is not actuated in this position. The pawl actuating pin 40 is spaced apart from the release lever peripheral wall 49 , in particular from the actuating area 54 . And the driving wheel 6 is not blocked or locked by the pawl 7 . The pawl 7 is therefore in its non-locking or non-blocking position of the drive wheel 6 .

The release lever 44 is also in its unactuated starting position. In this, the unlocking pin 53 of the release lever 44 is located in the block-actuating recess 103 of the blocking element 97, but without actuating it. The trip lever 44 is also urged to its home, unactuated position by gravity. Lock case 4 serves as a stop in the non-actuated position.

In the open position of the vehicle door or hatch lock 1, the accumulator lever 45 also rests with its accumulator lever control nose 70 on the first circular-cylindrical peripheral wall section 61 of the control disk peripheral wall 58 of the control disk 46. The storage lever detent 73 is spaced from the release lever detent 51 . Or the locking lugs 51; 73 are disengaged.

The blocking element 97 is also in its unactuated initial position. In this position, the locking element 97 rests against the outer wall surface 91 of the ring gear wall 90-2 of the second ring gear 80-2 due to the force of the locking element spring 102. The blocking element spring 102 thus urges the blocking element 97 into its unactuated starting position. In this position, a rotation of the second ring gear 80 - 2 in the first ring gear rotation direction 96a is not blocked by the blocking element 97 . When the second ring gear 80-2 rotates in the first ring gear direction of rotation 96a, the blocking element 97 slides along the outer wall surface 91-2 until it reaches one of the ramps 94-2. It then slides along the ramp 94-2 compressing the latch spring 102. From the ramp 94 - 2 , the blocking element 97 slides further onto the bearing surface 93 - 2 of the stop pin 92 - 2 and along it until the stop pin 92 - 2 has passed the blocking element 97 . Then the locking element 97, driven by the force of the locking element spring 102, snaps back into its initial position. The second ring gear 80-2 is therefore freely rotatable in the first ring gear rotation direction 96a.

Furthermore, the two sensors 104; 105 are in their first position. This is registered by the control device 76 .

If the door or flap is closed, the locking bolt 12 presses against a door closing direction (arrow 108) against the actuating nose 19 of the rotary latch 5, so that the rotary latch 5 is pivoted in the rotary latch closing direction 16a against the force of the rotary latch spring 23. The rotary latch 5 in turn drives the drive wheel 6 in its drive wheel closing direction 31a via the rotary latch toothing 20 . The rotary latch 5 and the drive wheel 6 are pivoted in opposite directions.

The rotary latch 5 is also pivoted to such an extent that the locking nose 14 of the rotary latch 5 blocks the locking bolt recess 11 in such a way that the locking bolt 12 can no longer escape from the locking bolt recess 11 of the lock case 4 .

The lock 1 can now only be moved relative to the locking bolt 12 by a certain amount. This position is referred to as the pre-locking position or safety lock of the lock 1. Although the door or flap can no longer be opened, it is not yet fully closed.

The rotational movement of the drive wheel 6 also moves the first drive wheel latching depression 28a of the drive wheel 6 into the area of the spring-loaded pawl latching nose 36. The pawl latching nose 36 then latches into the first drive wheel latching depression 28a due to the pressure of the pawl spring 37. The drive wheel 6 is thereby blocked or locked in a detent manner. And via the drive wheel 6, the rotary latch that is toothed with it is also blocked or locked. This means that the rotary latches 5 and the drive wheel 6 can no longer rotate in the rotary latch opening direction 16b or drive wheel opening direction 31b by the force of the rotary latch spring 23 .

Since the drive wheel 6 and the control disk 46 are connected to one another in a rotationally fixed manner, the control disk 46 also rotates with the drive wheel 6 in the drive wheel closing direction 31a when the lock 1 moves from the open position into the pre-locking position. The accumulator lever control lug 70 slides along the peripheral wall of the control disk 58 and reaches the area of the flank 63. Driven by the force of the accumulator lever spring 71, it rests there. The storage lever 45 rotates in the opposite direction to the direction of actuation 72 of the storage lever and thereby approaches the release lever 44 .

Since the drive wheel 6 and the control disk 46 are also non-rotatably connected to the second planetary carrier 81-2, the second planetary carrier also rotates 81-2 in the drive wheel closing direction 31a when the lock 1 moves from the open position to the pre-locking position. However, since the second sun gear 83-2 is fixed, the second ring gear 80-2 also rotates at the same time as the second planetary carrier 81-2 in the drive wheel closing direction 31a or in the first ring gear direction of rotation 96a, albeit at a different speed. In particular, the rotational speed of the second ring gear 80-2 is faster than that of the second planet carrier 81-2. As already explained, the second ring gear 80 - 2 can rotate freely since it is not locked by the locking element 97 .

The second sun gear 83-1 is fixed because the drive motor 74 is not running and the first gear stage 78-1 is therefore blocked. Since the second sun gear 83-1 is non-rotatably connected to the first planet carrier 81-1, it is also blocked or fixed. This is known to be the behavior of a planetary gear.

As already explained, the blocking element 97 slides over the stop pins 92-2 of the second ring gear 80-2 during the rotational movement of the second ring gear 80-2 in the first direction of rotation 96a of the ring gear. The blocking element 97 is thereby displaced in a blocking element actuation direction 106 in the lock case 4 . However, since the block-actuating recess 103 is elongate or designed as a long hole, the unlocking pin 53 can slide along in the block-actuating recess 103 without the release lever 44 being moved.

When rotating into the pre-locking position, the pawl 7 is also rotated so far that the pawl actuating pin 40 of the pawl 7 actuates the second sensor 105 in such a way that the circuit of the second sensor 105 is interrupted and the second sensor 105 is in its second position. The first sensor 104 is still in its first position. This is the sign that the door lock 1 has assumed its pre-locked position.

After a short time delay or activation time, the control unit then triggers the start of the drive motor 74, so that it drives the first sun wheel 83-1 in the drive wheel closing direction 31a or a first gear rotation direction 96b. Since the first ring gear 80-1 is fixed in the lock case 4, the first planet carrier 81-1 rotates at the same time as the first sun gear 83-1 in the same direction as the first sun gear 83-1, but at a different, in particular lower, rotational speed.

The time delay or activation time is present so that the drive motor 74 is only started if the lock 1 remains in the pre-locked position. If the lock 1 only goes through the pre-locking position and is completely closed directly by the operator, it is not absolutely necessary to pull it closed and the drive motor 74 does not have to be started.

Since the second sun gear 83-2 is non-rotatably connected to the first planetary carrier 81-1, it rotates with the first planetary carrier 81-1.

Since, as already explained several times, the second planet carrier 81-2 is connected to the drive wheel 6 in a rotationally fixed manner and the drive wheel 6 is blocked by the pawl 7 in such a way that it can no longer rotate in a drive wheel opening direction 31b, the second planet carrier 81 -2 cannot be rotated in the drive wheel opening direction 31b or the second gear rotation direction 96b or the second planetary carrier 81-2 is locked or fixed in the drive wheel opening direction 31a or the second gear rotation direction 96b.

As a result, the second ring gear 80-2 is driven in the second gear rotation direction 96b by the rotation of the second sun gear 83-2 in the first gear rotation direction 96a. The second ring gear 80-2 and the second sun gear 83-2 therefore rotate in opposite directions of rotation 96a;b.

The second ring gear 80-2 can rotate in the second transmission direction of rotation 96b until one of the stop pins 92-2 strikes or abuts against the blocking element 97 ( 15 ). From this point is the rotation of the second Ring gear 80 - 2 blocked by the blocking element 97 in the second transmission direction of rotation 96b.

This in turn causes the second planet carrier 82-2 to be driven in the first direction of rotation 96a of the gearbox by the rotation of the second sun wheel 83-2 in the first direction of rotation of the gearbox.

Since the second planet carrier 82-2 is in turn connected in a rotationally fixed manner to the drive wheel 6 and the control disk 46, these are also rotated.

The drive wheel 6 drives the rotary latch 5 in the rotary latch closing direction 16a via the teeth 20; 29.

The rotary latch 5 is turned until the locking bolt 12 is positively arranged in the locking bolt receptacle 15 of the rotary latch 5 and the locking bolt recess 11 of the lock case 4 and is encompassed by these firmly and positively.

The rotary latch 5 is now in its final locking position. And the lock 1 is now in its fully closed position ( 6 , 10 ).

The rotational movement of the drive wheel 6 moves the second drive wheel latching depression 28b of the drive wheel 6 into the area of the spring-loaded pawl latching nose 36. The pawl latching nose 36 then snaps into the second drive wheel latching depression 28b of the drive wheel 6 due to the pressure of the pawl spring 37. The drive wheel 6 is thereby blocked or locked again in the drive wheel opening direction 31b.

By locking the drive wheel 6, the rotary latch 5, the control disk 46 and the second planet carrier 81-2 are blocked or locked accordingly.

When rotating into the fully closed position, the rotary latch 5 is also rotated to such an extent that the mandrel 22 of the rotary latch actuates the first sensor 104 in such a way that the circuit of the first sensor 104 is interrupted and the first sensor 104 is in its second position. The second sensor 105 is also in the second position. This is the sign that the door lock 1 has assumed its fully closed position.

The control unit 76 then stops the drive motor 74.

In addition, the drive motor 74 is preferably rotated briefly in the opposite direction in order to take the forces out of the gear 75 . In particular, this removes the locking element 97 from the stop pin 92-2.

During the transition from the pre-locked position to the fully closed position, however, the second sensor 105 is briefly in the first position ( 20 ). As a result, the state of the lock 1 is determined, namely that it is between the pre-locked position and the end-locked position.

To open the door lock 1 according to the invention from the pre-locked safety catch ( figure 5 , 7-9 ) or from the closed position ( 6 , 10 ), i.e. to unlock the drive wheel 6 and thus also the rotary latch 5, the pawl 7 is pivoted in the pawl unlocking direction 38b against the force of the pawl spring 37 ( 11 ).

For this purpose, the release lever 44 is pivoted in the release lever unlocking direction 56a. As soon as the release lever 44 is pivoted so far that the release lever peripheral wall 49, in particular the actuating area 54, abuts the pawl actuating pin 40, the pawl 7 is taken along by the release lever 44 and thus actuated.

To actuate the release lever 44 , an actuating mechanism known per se, for example a pull handle mechanism or a push-button mechanism (not shown), is used, which engages in the lock case 4 and actuates the release lever 44 on the release pin 52 . Preferably, an actuating mechanism present, which can be actuated in a manner known per se from the vehicle interior, and an actuating mechanism which can be actuated in a manner known per se from the vehicle exterior.

The rotation of the pawl 7 in the pawl unlocking direction 38b moves the pawl detent 36 away from the drive wheel 6, so that the pawl detent 36 is moved out of the second drive wheel detent depression 28b. As a result, the drive wheel 6 and the rotary latch 5 are unlocked and snap under the pressure of the rotary latch spring 23 into their open initial position ( 4 ) back. The rotary latch 5 thus rotates automatically or independently in the rotary latch opening direction 16b. The rotary latch 5 drives the drive wheel 6 via the teeth 20;29. The locking bolt 12 is thereby pushed out of the lock case 4 . The door lock 1 is again in its open position. After the pawl 7 is released, it snaps back, driven by the force of the pawl spring 37, ie automatically or independently, into its unactuated starting position.

However, the rotation of the drive wheel 6 and the rotary latch 5 is only possible if the second planet carrier 82-2, which is firmly connected to the drive wheel 6, can also rotate freely. Since the drive motor 74 is off, the first sun gear 83-1 is fixed. And as long as the second ring gear 80-2 is also locked in the second gear direction 96b, the second planet carrier 82-2 cannot rotate in the second gear direction 96b either.

Simultaneously with the pawl 7, the release lever 44 therefore actuates the blocking element 97. It thus unlocks the gear 75. Since the release pin 53 of the release lever 44 engages in the block actuating recess 103 of the blocking element 97, the rotation of the release lever 44 in the release lever unlocking direction 56a causes the blocking element to move 97 in the blocking element actuation direction 106 against the force of the blocking element spring 102. The blocking element 97 is moved in the blocking element actuation direction 106 until it is completely out of the path of movement of the stop pin 92 of the second ring gear 80-2 is out. As a result, the second ring gear 80-2 is unlocked and can be freely rotated again in the second transmission direction 96b.

Since the drive motor 74 is off, the second sun wheel 83-2 is fixed again. This allows both the second ring gear 80-2 and the second planet carrier 82-2 to rotate simultaneously. Since the second planet carrier 82-2 is non-rotatably connected to the drive wheel 6, it snaps back together with the drive wheel 6 in the second transmission direction 96b to its initial position. And the second ring gear 80-2 also rotates back into its initial position.

In order to prevent the pawl 7 and the locking element 97 from snapping back into their locking positions before the ratchet 5 and the drive wheel 6 have returned to their original positions, the storage mechanism comprising the storage lever 45 is provided. When the release lever 44 moves in the release lever unlocking direction 56a, the release lever latching nose 51 passes the storage lever latching nose 73. The storage lever 45 is pivoted away from the release lever 44 against the force of the storage lever spring 71. However, as soon as the release lever latching lug 51 has passed the storage lever latching lug 73, the storage lever 45, driven by the force of the storage lever spring 71, snaps back again so that the two latching lugs 51; 73 rest against one another or are locked together ( 11 ). As a result, the movement of the release lever 44 against the release lever unlocking direction 56a is blocked by the storage lever 45 . The storage lever locking lug 73 is an abutment for the movement of the release lever 44 against the release lever unlocking direction 56a. Since the release lever 44 is locked, the pawl 7 and the locking element 97 are also locked.

Due to the rotation of the drive wheel 6, however, the control disk 46, which is connected in a rotationally fixed manner to the drive wheel 6, is now also rotated back into its initial position. The storage lever control nose 70 slides on the second circular-cylindrical peripheral wall section 62 of the control disc 46 along and via the flank 63 onto the first circular-cylindrical peripheral wall section 61. This moves the storage lever 45 away from the release lever 44, so that the storage lever latching lug 73 releases the release lever latching lug 51. The release lever 44, driven by the pawl 7, then snaps back into its unactuated starting position. The pawl 7 in turn, driven by the force of the pawl spring 37, snaps back into its unactuated starting position. And the locking element 97, driven by the force of the locking element spring 102, snaps back into its unactuated starting position ( 13 ).

On the one hand, the vehicle lock according to the invention has a high level of functional reliability. Despite the closing device, the lock can always be unlocked manually, since unlocking the rotary latch using the release lever always unlocks the second ring gear as well. In addition, the lock always automatically returns to its initial position after unlocking, in particular due to the different springs.

It is also within the scope of the invention for the door lock 1 to have a third sensor (not shown), preferably a third microswitch. The third sensor detects, for example, if something happens during the closing process, which is why the closing process has to be interrupted. For example, the third sensor detects when the door lock 1 is unlocked manually from the outside during the closing process. The control device 76 then detects corresponding information from the third sensor and immediately stops the drive motor.

If the door lock 1 is unlocked manually from the outside during the closing process, however, the second ring gear 80-2 is also unlocked, as described above. As a result, the second ring gear 80 - 2 can rotate freely again and there is no longer any power transmission to the drive wheel 6 . And the second planetary carrier 82-2 rotates back with the pinion 6 in the pinion opening direction 31b. The drive wheel 6 and the second planetary carrier 82-2 are doing on the Rotary latch 5 driven by the force of the rotary latch spring 23. The closing process would therefore be interrupted purely mechanically even with manual unlocking if the third microswitch is not available or is defective. In addition, it is also preferably provided in terms of control technology that the drive motor 74 only rotates for a specific period of time during the closing process and is then switched off anyway. This is an additional backup feature.

Another particular advantage of the vehicle lock 1 according to the invention is its compact design. This can be implemented, among other things, by the two planetary gears 79-1; 79-2. Because these increase the power of the drive motor 74, so that a very small drive motor 74 with low power can be used. In addition, the transmission 75 is arranged with its transmission axis 75a coaxially to the drive wheel axis 6a. It is thus connected directly to the drive wheel 6 without any reversing levers arranged in between. This also makes a compact design possible. This is particularly advantageous in agricultural machines, such as tractors, or construction machines, since there is significantly less space available in their doors for accommodating the lock 1 than in passenger vehicles.

Due to the drive wheel 6, it is also possible to increase the force acting from the rotary latch 5 on the locking bolt 12 during the closing process. For this purpose, the drive wheel 6 preferably has a larger sprocket diameter than the rotary latch 5 .

The force acting on the locking bolt 12 can also be realized simply by modifying the gear 75 and the drive motor 74 .

The very compact structure of the vehicle lock 1 according to the invention is particularly advantageous in combine harvesters and similar vehicles. Because these have a large visible surface, so that little space is available for accommodating the vehicle lock 1 . It is of course also within the scope of the invention that the individual components of the two planetary gears 79-1; 79-2 are not of identical design. For example, the first ring gear 80-1 have no stop pins 92-1, since it is mounted in a rotationally fixed manner. The second planet carrier 81-2 also does not have to have any grooves 89-2. And the first planetary carrier 81-1 does not have to have drive grooves 88-1. And the first sun gear 83-1 does not need the cams. Because the aforementioned elements have no function in the respective component. Such elements can thus be omitted. However, the identical training is advantageous in terms of manufacturing technology.

Claims (16)

Vehicle lock (1) for locking doors or flaps of motor vehicles, in particular doors or flaps of agricultural machines, such as tractors, or construction machines a) a lock case (4), b) a rotary latch (5) rotatably mounted in the lock case (4) for gripping and holding a locking bolt (12) in a pre-locked position or an end-locked position, c) a drive wheel (6) rotatably mounted in the lock case (4) and toothed with the rotary latch (5), d) a pawl (7) arranged in the lock case (4) for locking the drive wheel (6) and via this the rotary latch (5) toothed with the drive wheel (6) in its pre-locking position or final locking position, e) a closing device (3) with which the rotary latch (5) is rotatably drivable in a rotary latch closing direction (16a) from the pre-locked position to the final locked position, whereby the drive wheel (6) is directly connected to the closing device (3) so that it can be driven in a drive wheel closing direction (31a), and a rotation of the drive wheel (6) in the drive wheel closing direction (31a) causes the rotary latch (5) to rotate in the rotary latch closing direction (16a). , and the closing device (3) has a drive motor (74) and a gear (75) arranged between the drive motor (7) and the drive wheel (6) with at least two gear stages (78-1; 78-2), each with a planetary gear (79-1 ;79-2). Vehicle lock (1) according to claim 1,
characterized in that
the closing device (3) has a control device (76) for controlling the drive motor (74). Vehicle lock (1) according to claim 1 or 2,
characterized in that
after the drive wheel (6) has been unlocked, the rotary latch (5) returns automatically, in particular driven by spring force, from its pre-locked position or end-locked position to its open starting position by actuating the pawl (7). Vehicle lock (1) according to one of the preceding claims,
characterized in that
the two planetary gears (79-1; 79-2) each have a ring gear (80-1; 80-2), a planetary carrier (81-1; 81-2), several planetary gears (82-1; 82-2) and a Have sun gear (83-1; 83-2). Vehicle lock (1) according to claim 4,
characterized in that a) the first gear stage (78-1) is directly connected to the drive motor (74) and the second gear stage (78-2) is connected to the drive wheel (6), b) the sun wheel (83-1) of the first gear stage (78-1) is non-rotatably connected to a drive shaft (77) of the drive motor (74) about a central gear axis (75a), c) the sun gear (83-2) of the second gear stage (78-2) is non-rotatably connected to the planet carrier (81-1) of the first gear stage (78-1) about the central gear axis (75a), d) the planet carrier (81-2) of the second gear stage (78-2) is non-rotatably connected to the drive wheel (6) about the gear center axis (75a), and e) the ring gear (80-1) of the first gear stage (78-1) is non-rotatably connected to the lock case (4) about the central gear axis (75a). Vehicle lock (1) according to claim 5,
characterized in that the vehicle lock (1) has a blocking element (97) for blocking the rotation of the ring gear (80-2) of the second gear stage (78-2) in a second gear rotation direction (96b) opposite to the driving wheel locking direction (31a), in particular as long as the pawl ( 7) is not actuated, the vehicle lock (1) preferably having a release mechanism for releasing the locking of the rotary latch (5) and for simultaneously unblocking the ring gear (80-2) of the second gear stage (78-2), the vehicle lock (1) preferably having a release lever (44) for, in particular direct, actuation of the pawl (7) to unlock the rotary latch (5) and for simultaneous, in particular direct, actuation of the blocking element (97) to unlock the ring gear ( 80-2) of the second gear stage (78-2). Vehicle lock (1) according to claim 6,
characterized in that
the release mechanism, in particular the release lever (44), by means of an actuating mechanism arranged outside the lock case (4), e.g. B. a push button or a pull handle can be actuated. Vehicle lock (1) according to one of claims 5 to 7,
characterized in that the ring gear (80-2) of the second gear stage (78-2) can rotate freely in the drive wheel closing direction (31a), preferably the planetary carrier (81-2) of the second gear stage (78-2) being freely rotatable in the closing direction (31a) of the drive wheel, in particular via an axial deep groove ball bearing (109), with a drive wheel bearing bolt (24) arranged in the lock case (4). , on which the drive lever (6) is rotatably mounted. Vehicle lock (1) according to one of claims 5 to 8,
characterized in that
in the pre-locking position, the planetary carrier (81-2) of the second gear stage (78-2) cannot be rotated in a drive wheel opening direction (31b) or a second gear rotation direction (96b). Vehicle lock (1) according to one of the preceding claims, characterized in that the vehicle lock (1) has means or a memory mechanism for automatically holding the pawl (7) in its actuated position during the reverse rotation of the drive wheel (6) and the rotary latch (5) into the open position, the storage mechanism preferably having a storage lever (45) by means of which the release lever (44) can be locked in its actuated position until the rotary latch (5) and the drive wheel have returned to their initial positions. Vehicle lock (1) according to one of the preceding claims, characterized in that a) a rotary latch axis of rotation (5a), the drive wheel axis of rotation (6a) and a pawl axis of rotation (7a) are each spaced apart from one another and parallel to one another,
and or b) the drive wheel axis of rotation (6a) and the transmission center axis (75) are coaxial with one another. Vehicle lock (1) according to one of the preceding claims, characterized in that the rotary latch (5) is connected, preferably directly, to a rotary latch spring (23) so that it can be rotated into its open position, preferably the drive wheel (6) is rotatably connected via the rotary latch (5) to the rotary latch spring (23) in the drive wheel opening direction (31b) about the drive wheel axis of rotation (6a). Vehicle lock (1) according to one of the preceding claims, characterized in that the rotary latch (5), the drive wheel (6) and the pawl (7) are plate-shaped and are arranged parallel to one another and on the same plane, preferably wherein the trigger mechanism (43) is arranged in a different plane than the ratchet, the drive wheel (6) and the pawl (7), preferably with a support plate (47) being present therebetween. Vehicle lock (1) according to one of claims 2 to 13,
characterized in that
the control device (76) has sensors (104; 105) for detecting whether the vehicle lock (1) is in the open position, in the pre-locked position or in the fully closed position, the sensors being connected to the control device (76). , wherein the information from the sensors (104; 105) can preferably be detected by means of the control device (76) and the drive motor (74) can be controlled on the basis of the information. Vehicle lock (1) according to one of the preceding claims,
characterized in that
the gear (75), in particular the two gear stages (78-1;78-2), in a tubular housing connector (55 ) is arranged, with the housing socket (55) preferably being firmly connected to the lock case (4), with the housing socket (55) preferably being in one piece with the rear wall (8) and preferably also with transverse and longitudinal walls (10a; b) of the lock case (4), the components preferably being made of plastic. Vehicle with a vehicle body and a vehicle door or hatch and a vehicle lock (1) and a locking bolt (12) for locking the vehicle door or hatch,
characterized in that the vehicle has a vehicle lock (1) according to one of the preceding claims, the lock case (4) preferably being arranged in the vehicle door or hatch and the locking bolt (12) being firmly connected to the vehicle body.

Images