EP3841265B1 - Motor vehicle lock, in particular an electrically actuatable motor vehicle lock - Google Patents

Description

The invention relates to a motor vehicle lock, in particular an electrically actuatable motor vehicle lock, having a locking mechanism with a rotary latch and at least one pawl, the rotary latch being lockable in at least one locking position by means of the pawl, and a release lever, the locked locking mechanism being unlockable by means of the release lever.

Motor vehicle locks are used in motor vehicles where components that are arranged on the motor vehicle such that they can pivot, slide or move in some other way have to be fixed. Particularly with regard to the side doors and/or a tailgate, high demands are placed on ease of use. The developers of motor vehicle locks are therefore always striving to increase the convenience when operating the motor vehicle locks.

The motor vehicle lock and in particular the locking mechanism arranged in the motor vehicle lock interacts with a lock holder, which is usually fastened to the motor vehicle body, when it is closed. The locking mechanism, consisting of a rotary latch and a pawl, is moved into a latching position by means of the lock holder. This latching position, with a preliminary latching position and a main latching position being possible, then makes it possible for the movable component to be held securely while the motor vehicle is being used to position and hold. The latching position is achieved by the pawl engaging in a latching surface of the rotary latch, so that the locking mechanism can move into a main latching position, for example. The interplay between the locking part, ie the rotary latch and the pawl, causes closing and opening noises, which have a significant influence on the comfort behavior of the motor vehicle lock.

From the DE 10 2016 215 336 A1 a motor vehicle lock has become known in which, in order to achieve favorable haptics and acoustics of the motor vehicle lock, a latching element in the form of a ball, for example, is arranged in the engagement area between the catch and the pawl. In order to ensure that the ball is guided in the area of engagement between the catch and the pawl, the publication discloses a guide cage, the guide cage being arranged either on the pawl or on the catch.

From the DE 10 2007 003 948 A1 a lock unit with a locking mechanism has become known, in which there is a first pawl which is held in engagement with the rotary latch by means of a blocking lever. The ratchet is equipped with a first catch and a main catch. A release lever is used to achieve a pre-lock, wherein the release lever can be brought into engagement with a bolt on the rotary latch, so that a pre-lock position can be achieved. In the main latching position, a first pawl is in engagement with the rotary latch in such a way that the interaction of rotary latch and pawl results in an opening moment and a blocking lever is provided with which the first pawl acts against the opening moment of the first pawl. To open the locking mechanism, the blocking lever is first disengaged from the pawl, with the release lever then being able to disengage the pawl from the rotary latch.

From the WO 2011/052540 A1 a lock, in particular a motor vehicle lock, has become known in which the rotary latch can be moved into an overtravel position by means of a trigger arrangement in order to unlock the locking mechanism.

The object of the invention is to provide an improved motor vehicle lock. It is a particular object of the invention to provide a motor vehicle lock in which the opening noise is minimized and the locking mechanism can be opened easily. In addition, the object of the invention is to provide a locking mechanism that is particularly suitable for electrical unlocking. Ultimately, the object of the invention is to provide a structurally favorable solution for easy, low-noise opening.

The object is achieved by the features of independent patent claim 1. Advantageous refinements of the invention are specified in the dependent claims. It is pointed out that the exemplary embodiments described below are not restrictive; instead, any number of possible variations of the features described in the description and the subclaims are possible.

According to claim 1, the object of the invention is achieved in that a motor vehicle lock, in particular an electrically actuated motor vehicle lock, is provided, having a locking mechanism with a rotary latch and at least one pawl, wherein the The rotary latch can be latched in at least one locking position by means of the pawl and a release lever, the latched locking mechanism being able to be unlocked by means of the release lever and the rotary latch to unlock the locking mechanism being movable at least indirectly by means of the release lever, in particular being movable into an overtravel position. According to the invention, the release lever is mounted on a common pivot axis with the pawl. By arranging the release lever on the bearing point of the pawl, a compact design of the motor vehicle lock can be provided. The construction of the motor vehicle lock according to the invention now makes it possible to provide a motor vehicle lock with which it is possible to open it easily and with little noise. In particular, through the interaction of the release lever with the rotary latch during the opening process, the pawl can be moved out of the engagement area with the rotary latch, so that a tearing noise, i.e. the pawl slipping off the rotary latch, can be prevented or at least reduced to a minimum. If the release lever engages in the rotary latch during the opening process and moves the rotary latch at least far enough into a closed position that the pawl can be released from the rotary latch, the release lever can engage in the pawl at the same time or at least briefly offset and the pawl can be released easily and quietly move out of the engagement area with the rotary latch.

The locking mechanism is held in a latching position by means of the pawl. The disengagement of the pawl and ratchet is also known as unlocking designated. There are locking mechanisms with one or two locking positions, a distinction being made between a pre-locking position, in which the locking mechanism is not yet fully closed, and a main locking position, in which the locking mechanism is in the closed position of the lock. Starting from a closed position, for example, the release lever interacts with the rotary latch in such a way that the rotary latch is moved beyond the main latching position into an overtravel position, so that the pawl is relieved. A released pawl is easily moved out of engagement with the ratchet. The load from the rotary latch, for example from a door seal pressure, is taken over by the release lever to unlock the locking mechanism. Advantageously, the rotary latch can be raised with the release lever, that is, the pawl can be relieved of the load of the rotary latch.

When speaking of a motor vehicle lock within the meaning of the invention, this includes motor vehicle locks that are used, for example, in side doors, sliding doors, flaps, hoods and/or covers, precisely where pivotally or displaceably mounted components are arranged in the motor vehicle. It is also conceivable that the motor vehicle lock is arranged in a backrest of a seat.

The motor vehicle lock has a locking mechanism that has a rotary latch and at least one pawl. Preferably and in particular, at least one pawl is arranged in one plane with the catch and is able, in interaction with the locking element and a lock holder to lock the rotary latch in one position. When the locking mechanism is open, an inlet mouth of the rotary latch points in the direction of a lock holder, with the rotary latch pivoting as a result of a relative movement between the lock holder and the rotary latch. The pawl is generally biased in the direction of the rotary latch, so that the pawl and in particular the latching element engages with the rotary latch when a latched position is reached. Here, a pre-locking position and a main locking position of the locking mechanism can be taken.

The locking system or motor vehicle lock can also have a lock housing in which the locking mechanism, a locking unit, an actuating unit, an electric drive and/or gear parts can be arranged. Of course, this list is not exhaustive, but only describes components of the motor vehicle lock that can be used depending on the area of application and functionalities. The lock housing is preferably designed as a plastic injection molded part and can consist of at least one lock housing cover and a lock housing shell. The lock housing primarily serves to protect the functional components from, for example, penetrating moisture and/or dirt. The lock housing components are connected to one another in a sealed manner.

The lock case can be formed as a bent stamped part and encloses the housing at least in certain areas and/or on two sides. The lock case can enclose an inlet mouth for the lock holder and thus to another serve to stabilize the lock. The motor vehicle lock is preferably directly connected and screwed to the motor vehicle body via the lock case or a lock plate as a flat lock case. Means for mounting, for example mounting openings, preferably as threads, are provided in the lock plate.

The release lever can be actuated manually and/or electrically. In particular in the case of locking systems in which the release lever can be actuated electrically, the term electric locking systems is used. Here, in various embodiments of the motor vehicle locks, a mechanical redundancy with, for example, an external operating lever can be completely dispensed with. However, hybrid embodiments are also possible, with electrical and mechanical unlocking of the locking mechanism being possible. The release lever is arranged in the motor vehicle in such a way that the pawl is disengaged from the pawl by means of the release lever. According to the invention, the release lever is also able to actuate the rotary latch immediately when the locking pawl is moved out of the area of engagement with the rotary latch and to move it into an overtravel position.

This overtravel position relieves the pawl, allowing easy unlocking and consequently quiet unlocking of the locking mechanism. Of course, there is also the possibility that a pawl with a blocking lever is used, in which case it is also referred to as a two-pawl ratchet is, wherein the release lever is then able to actuate both pawls as well as the rotary latch. It is essential to the invention that the release lever relieves the pawl, which is in direct engagement with the catch. In this way, noises from the relative movement between the catch and the pawl can be reduced and/or eliminated. It is consequently possible to open the locking mechanism quietly.

In one embodiment of the invention, the release lever can be brought into engagement with a contour, in particular a cylindrical pin or bolt, of the rotary latch. By directly engaging in a contour of the rotary latch, the release lever and in particular the interaction between the release lever and the rotary latch can be designed in terms of low noise development. In particular, when the release lever and rotary latch interact, an engagement ratio that is favorable for the release lever to roll on the rotary latch can be achieved. It is conceivable that a contour in the form of a cylindrical pin or bolt is arranged on the catch so that the release lever rests against a radius.

If, for example, the end of the release lever that engages with the bolt is also provided with a radius, rolling or rolling can occur. A rolling or rolling function offers the possibility that a gentle disengagement of the release lever and rotary latch is made possible. In addition to the arrangement of a cylindrical pin or a bolt, it is also conceivable, of course, directly in the rotary latch incorporated with a shape engageable with the release lever. The rotary latch is preferably formed from a steel part with a plastic coating. A metal area of the release lever also preferably interacts with a metal area of the rotary latch, so that on the one hand forces can be transmitted in a permanently stable manner and on the other hand favorable engagement conditions can be ensured over a long period of time.

Due to the construction according to the invention, a circular path can also be achieved through the end of the release lever which is in engagement with the rotary latch by a pivotable mounting of the release lever. This in turn can support the rolling or rolling of the release lever on the rotary latch in a positive sense. On the one hand, the bearing point for the release lever forms a secure means for mounting the release lever, since the pawl and the catch are preferably mounted in the lock case and/or by means of a reinforcement plate in the motor vehicle lock.

This stable mounting can be used for the release lever, so that a sufficiently stable mounting for the release lever can also be provided. The lifting of the rotary latch or the lifting of the rotary latch from the pawl can be facilitated in particular by a suitable lever ratio on the release lever. A favorable lever ratio makes it possible for the release lever to be able to move the catch into the over-travel position safely, even by means of an electric drive.

It can also be advantageous if the contour on the rotary latch itself is arranged on the rotary latch such that it can pivot or rotate. A rolling between and rotary latch can be achieved by a pivotable or rotatable arrangement of the contour.

A further advantageous embodiment variant of the invention results when a means for achieving a rolling or rolling movement is arranged in the engagement area between the rotary latch and the release lever. A means for achieving a rolling or rolling movement, i.e. a rolling or rolling means, offers the possibility that on the one hand a further translation between the release lever and the contour on the rotary latch can be achieved and on the other hand the possibility of designing the engagement conditions between the release lever and the rotary latch and/or or to optimize. In particular, a rolling or rolling movement of the rolling means can cause the release lever to slide off the contour of the rotary latch be prevented. Thus, a low-noise unlocking of the locking mechanism can be achieved.

If the unlocking of the locking mechanism is given priority in this exemplary embodiment described, it should be pointed out here that the inventive movement of the rotary latch by means of the release lever can also be used advantageously to lock the locking mechanism. In order to move the release lever into the closed position of the locking mechanism, the release lever moves into the area of engagement with the rotary latch, so that the rotary latch can be brought into the overtravel position. In this overtravel position, it is possible to ensure that the locking pawl falls securely into the area of engagement with the rotary latch. It is thus also possible to securely lock the locking mechanism by means of the interaction of the release lever and the rotary latch.

The rolling means is advantageously a cylindrical body, in particular a rolling body, resulting in a further embodiment of the invention. A cylindrical body and in particular a rolling body offer the advantage of favorable engagement conditions between the contour of the rotary latch and the release lever. The contour of the rotary latch preferably also has a radius, so that the cylindrical body can roll off or roll over the contour of the rotary latch. The contour on the rotary latch is preferably a bolt or cylindrical pin. Merely by way of example, it should be mentioned that a rolling element can have a diameter of, for example, 5 to 15 mm, preferably 8 to 12 mm and even more preferably 10 mm. Can be the cylindrical body or rolling elements roll on the catch, a surface favorable for rolling can also be formed on the end of the release lever that is in engagement with the rolling body.

It is also conceivable here to form a radius or a flat surface. The rolling body can then be rolled between the release lever and the rotary latch contour. It is conceivable that the rolling element can be guided in the motor vehicle lock by means of the release lever and/or by means of the rotary latch and/or by means of the lock housing and/or a reinforcement plate. The guide is to be designed in such a way that rolling of the rolling body is ensured to the extent that the pawl can be disengaged from the rotary latch and safe rolling of the rolling body is enabled to such an extent that the release lever can be easily and quietly removed from the area of engagement with the rolling body or the rotary latch can be brought.

In a further embodiment variant of the invention, the rolling means is a bearing, in particular a deep groove ball bearing. By using series parts, such as commercially available deep groove ball bearings, a structurally favorable solution for actuating the rotary latch can be provided. In addition, standard or commercial parts offer the advantage that safe operation can be guaranteed over a long period of time.

If a radial end of the release lever is in engagement with the rolling means, a further embodiment variant results the invention. Through the targeted design of the engagement surface of the release lever, the power transmission between the release lever and the rolling means can be influenced in an advantageous manner. In particular, it is possible to introduce large forces and moments into the rolling means by means of the release lever. A large lever arm on the release lever can generate a favorable force ratio in a small translation in the rolling means, so that high forces are also made available for transferring the catch into the overtravel position. In the main locking position, the rotary latch is in a position in which the entire sealing pressure, for example of a door, is absorbed by the locking mechanism. The transfer of the rotary latch from the main locking position to the overtravel position therefore requires large forces or moments, which can be achieved by an advantageous design of the lever ratios and force application points, such as at a radial end of the release lever.

If the radial end of the release lever moves on a circular path, a further embodiment variant of the invention results. A circular path of the release lever offers the rolling means the opportunity to roll on the release lever. The bearing surface or the contact surface on the release lever is designed in such a way that a rolling path is provided for the rolling means, so that a safe transfer of the rotary latch to the overtravel position and at the same time a disengagement of the pawl from the engagement area with the rotary latch can be guaranteed. A rolling movement or rolling movement is advantageously carried out by means of the rolling body achievable between rolling elements or rolling means and catch. Rolling means, rolling means or rolling bodies can be understood here as synonyms, with the rolling body serving as a binding agent between the release lever and the rotary latch contour. In addition to the design of a cylindrical body as the contact contour on the rotary latch, it is also conceivable for the rolling body to face a circular, convex or elliptical surface. The interaction of the movement of the end of the release lever in the form of a segment of a circle, the rolling movement of the rolling element and the engagement contour on the rotary latch ensures that the rotary latch can be lifted off the pawl. Lifting off can then enable easy and low-noise unlocking or locking of the locking mechanism.

In a further embodiment variant, in an opening movement of the locking mechanism, an opening force can be introduced into the rolling element, in particular the release lever, at least in certain areas. The interaction of the release lever and/or rolling element and rotary latch contour can be designed in such a way that when the locking mechanism is fully locked, i.e. in the main locking position, the release lever and/or rolling element is transferred to a position in which the release lever and/or rolling element is in a closed position is durable. If the locking mechanism is opened, the release lever is then moved and moved against the rolling element or the rotary latch contour. Here, a force or a moment is introduced into the rotary latch, which causes the rotary latch to be lifted off the pawl. After transferring the pawl to an area out of engagement with the ratchet an opening moment or a force transferring the release lever into an open position can then be introduced by means of the rotary latch. The rotary latch thus supports the opening of the locking mechanism or the motor vehicle lock. The rotary latch or the force acting on the rotary latch can thus support the opening movement of the lock.

The invention is explained in more detail below with reference to the accompanying drawings using a preferred exemplary embodiment and using a force-time curve. However, the principle applies that the exemplary embodiment the invention is not limited, but merely represents an embodiment. The illustrated features can be executed individually or in combination with other features of the description as well as the patent claims individually or in combination, within the scope of the patent claims.

Fig. 1

eine Draufsicht auf eine prinzipielle Darstellung eines erfindungsgemäßen Kraftfahrzeugschlosses und insbesondere eine Detailansicht auf ein Gesperre mit einem Auslösehebel, einem Wälzkörper und einer zylindrischen Anlagekontur an der Drehfalle in einer Hauptrastposition,

Fig. 2

das erfindungsgemäße Gesperre gemäß der Fig. 1 in einer Stellung, in der der Auslösehebel die Drehfalle in eine Überhubposition hinein bewegt hat,

Fig. 3

das erfindungsgemäße Gesperre gemäß der Fig. 1 in einer Position, in der der Auslösehebel die Drehfalle außer Eingriff mit der Sperrklinke bewegt hat und gleichzeitig die Sperrklinke außer Eingriff mit der Drehfalle bewegt, und

Fig. 4

ein Kraft-Zeit-Diagramm in Bezug auf den Auslösehebel wirkenden Kräfte während eines Entsperrvorgangs.

It shows:

1

a top view of a basic representation of a motor vehicle lock according to the invention and in particular a detailed view of a locking mechanism with a release lever, a rolling element and a cylindrical contact contour on the rotary latch in a main locking position,

2

the locking mechanism according to the invention 1 in a position in which the release lever has moved the catch into an overlift position,

3

the locking mechanism according to the invention 1 in a position in which the release lever has moved the ratchet out of engagement with the pawl and at the same time is moving the pawl out of engagement with the ratchet, and

4

a force-time diagram in relation to the forces acting on the release lever during an unlocking process.

In the figure 1 is a plan view of a motor vehicle lock 1 and in particular of a ratchet mechanism of a Rotary latch 3 and a pawl 4 reproduced. The locking mechanism 2 is in a main locking position, with a lock holder 5 being held in a closed position, for example a side door, by means of the motor vehicle lock 1 . The lock holder 5 introduces a force F into the rotary latch, which generates a moment M in the clockwise direction about the axis 6 of the rotary latch 3 . The axis 6 of the rotary latch is accommodated in a lock plate 7 such that it can pivot. Another axis 8 is also held in the lock plate 7, the axis 8 serving as a bearing axis 8 for a release lever 9 at the same time. In an engagement area 10 between the pawl 4 and the rotary latch 3, areas of the pawl 4 and the rotary latch 3 that are preferably bare metal lie against one another. In the in the figure 1 The main locking position shown is the pawl 4 on the rotary latch 3 in the engagement area and in some areas on a plastic casing 11 of the rotary latch 3. Such a plastic casing 11 is advantageously used to mount the rotary latch on the axis with little noise and to form damping means 12 on the rotary latch 3 .

In this exemplary embodiment, a bolt 13 is formed on the rotary latch 3 and protrudes from the plane of the rotary latch 3 so that the bolt 13 is arranged in a plane parallel to the rotary latch 3 and on the level of the release lever 9 . Arranged between the release lever 9 and the bolt 13 is a rolling body 14 which is guided at a distance from the bolt 13 in the main latching position and in this exemplary embodiment. A guide for the rolling element 14 can, for example, by the release lever 9, for example in the form of a guide cage, may be formed by the lock housing and/or a reinforcing plate between the axes 6, 8 of the catch 3 and the pawl 4. the figure 1 shows the basic interaction between release lever 9, rolling element 14 and bolt 13, to explain the functional principle of the invention. A guide cage for the rolling element 14 is not shown for reasons of clarity in the figures.

Now look at the figure 1 , So are in the engagement area 10 between the rotary latch 3 and pawl 4 metallic areas of the rotary latch 3 and the pawl 4 against each other. If, as is known from the prior art, the release lever 9 were to move the pawl 4 out of the engagement area of the rotary latch 3 by means of a driving contour 15, this would cause friction between the locking mechanism parts 3, 4 in the engagement area 10, which would produce a noise and at the same time prevent easy opening. Due to the construction of the motor vehicle lock according to the invention, the release lever can reduce or completely eliminate the friction. It can thus be guaranteed a quiet and easy opening of the locking mechanism.

In the figure 2 is the locking mechanism according to the invention figure 1 reproduced in a position in which the pawl 4 has been released by means of the release lever 9, the rolling element 14 and the bolt 13. As from a comparison of figure 1 with the figure 2 As can be seen, the rectangle 16 has been pivoted, with the rectangle 16 only being reproduced in the figures to illustrate the pivoting or rotational movement of the rolling element 14 is. In the figure 2 If the release lever 9 moves in the clockwise direction in the direction of the arrow P1, the rotary latch is transferred from a main latching position HR to an overtravel position. That is, the ratchet has been moved further in its closing direction. At this point in time, the release lever 5 comes into engagement with the driving contour 15, as a result of which the pawl 4 can be released from the rotary latch 3 easily and noiselessly. The ratchet parts 3, 4 are thus released without any torque being applied or only with such a small torque being applied due to the rotary latch torque M that a noiseless release of the pawl 4 from the rotary latch 3 is possible.

In the figure 3 the position of the rotary latch is now shown again in the overtravel position. As can be clearly seen from the rectangle 16 in the rolling element 14, the rolling element 14 has rolled or rolled on the bolt 13, with the rolling movement of the rolling element 14 being caused by the rotary movement or movement of one end 17 of the release lever 9 on a circular path R has been initialized. The pawl 4 was moved by the release lever 9 and the entrainment contour 15 so far out of the area of engagement with the rotary latch 3 that a low-noise or noiseless opening of the locking mechanism 2 is possible. The rolling element 14 also slides off and the motor vehicle lock 1 is opened by a rolling movement of the rolling element 14 on the bolt 13 of the rotary latch 3. This enables the locking mechanism 2 to be opened easily and with little noise.

In the figure 4 Various force curves over time are shown on the release lever during an opening process of a locking mechanism. The curve 18 shows a force that must be introduced into the locking mechanism by means of a release lever 9 in order to open a conventional locking mechanism with a coefficient of friction of about 0.3 between the pawl 4 and the rotary latch 3 . At time T1, the release lever 9 is moved, with a frictional force between the catch 3 and the pawl 4 having to be overcome by the time T2. After that, the force drops sharply, since only the pawl 4 has to be moved by means of the release lever 9 .

The course of forces according to line 19 shows the opening process of a conventional locking mechanism with a coefficient of friction of 0.5. Such high coefficients of friction occur, for example, in very old and dirty locks, with dust, for example, getting between the rotary latch 3 and the pawl 4, so that the engagement area 10 is very dirty and high friction has to be overcome to open the locking mechanism.

In contrast to this, the course of forces 20 shows a completely different course of forces. At time T0, rotary latch 3 is moved into an overtravel position, as a result of which a peak load occurs in release lever 9. A continuous decrease in force follows, which corresponds to the rolling movement of the rolling body 14 on the bolt 13 . At time T3, a force F is introduced into the release lever 9 by means of the rotary latch 3, as a result of which the opening movement of the locking mechanism 2 is supported. As clearly in the figure 4 recognizable, the opening process differs or the unlocking process clearly from the usual force curves 18, 19 known locking mechanism. Due to the construction of the motor vehicle lock 1 according to the invention, not only can the locking mechanism be opened easily and noiselessly, the locking mechanism can also support the opening process.

Reference List

1

motor vehicle lock

2

lock

3

rotary latch

4

pawl

5

lock holder

6, 8

axis

7

lock plate

9

release lever

10

intervention area

11

plastic sheathing

12

damping agent

13

bolt, cylinder

14

rolling elements

15

driving contour

16

rectangle

17

end of the release lever

18, 19, 20

course of forces

f

power

M

moment

P1

Arrow

MR

main rest

uh

overtravel position

R

circular path

t0, t1, t2, t3

time

Claims (9)

1. A motor vehicle latch (1), in particular an electrically operable motor vehicle latch (1), comprising a locking mechanism (2) that has a rotary catch (3) and at least one pawl (4), it being possible to ratchet the rotary catch (3) in at least one ratchet position (HR) by means of the pawl (4), and comprising a release lever (9), it being possible to unlock the ratcheted locking mechanism (2) by means of the release lever (9), the rotary catch (3) being movable, in particular into a lifted position (ÜH), in order to unlock the locking mechanism (2) at least indirectly by means of the release lever (9), characterized in that the release lever (9) is mounted on a common pivot axis (8) with the pawl (4).
2. The motor vehicle latch (1) according to claim 1, characterized in that the release lever (9) can be brought into engagement with a contour, in particular a cylindrical pin or bolt (13), of the rotary catch (3).
3. The motor vehicle latch according to either claim 1 or claim 2, characterized in that a means for achieving a rolling movement is arranged in the engagement region (10) between the rotary catch (3) and the release lever (9).
4. The motor vehicle latch (1) according to claim 3, characterized in that the rolling means (14) is a cylindrical body, in particular a rolling body (14).
5. The motor vehicle latch (1) according to either claim 3 or claim 4, characterized in that the rolling means (14) is a bearing, in particular a deep-groove ball bearing.
6. The motor vehicle latch (1) according to any of claims 1 to 5, characterized in that a radial end (17) of the release lever (9) is in engagement with the rolling means (14).
7. The motor vehicle latch (1) according to any of claims 1 to 6, characterized in that the radial end (17) of the release lever (9) moves on a circular path (R), in particular on a circular path (R) around the pivot axis (8) of the pawl (4).
8. The motor vehicle latch (1) according to any of claims 4 to 7, characterized in that a rolling movement between the rolling body (14) and the rotary catch (3) can be achieved by means of the rolling body (14).
9. The motor vehicle latch (1) according to any of claims 4 to 8, characterized in that, in an opening movement of the locking mechanism (2), an opening force (F, M) can be introduced in the rolling body (14), in particular the release lever (9), at least in some regions.

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