Lock with adjustment aid, movable vehicle element and adjustment method

Abstract

The invention relates to a lock (1) for a movable vehicle element (302), the lock (1) comprising at least the following components:-a rotary latch (2) for a closing element, and-an adjustment aid (5) for adjusting the movable vehicle element (302), the rotary latch (2) being rotatable about an axis of rotation (100) between an open position (103), a closed position (102) and a closed superlift position (104), wherein the adjustment aid (5) comprises an adjustment aid lever (6), which is arranged such that, during operation of the rotary latch (2) into the closed super-lift position (104), a blocking engagement with the rotary latch (2) is achieved. The invention further relates to a movable vehicle element (302) having such a lock (1) and to an adjustment method.

Description

Technical Field

[0001] The present invention relates to a lock, in particular for a movable vehicle element, such as the tailgate or hood of a vehicle. Furthermore, the present invention also relates to a movable vehicle element and a method for adjusting the same during the assembly process of the movable vehicle element. Background Art

[0002] Locks for vehicle tailgates or hoods are well known. Such locks, especially for heavy vehicle components, may for example have a soft release function of the vehicle component and can be electrically operated by a transmission-controlled lever system. EP 4015 745 A1 discloses a known electric lock that has a running position (i.e., a closed position with an over-lift distance) different from the pre-locker and the main locker and can only be achieved by electric operation. Summary of the Invention

[0003] The object of the present invention is to provide a lock for a movable vehicle element, especially for a tailgate, which can be easily installed, especially can easily adjust or align the movable vehicle element. Furthermore, another object of the present invention is to provide a movable vehicle element that can be easily installed and adjusted and an improved method for adjusting the movable vehicle element during the assembly process.

[0004] The present invention achieves the first object of the invention by a lock having the features of claim 1. The present invention achieves the second object of the invention by a movable vehicle element having the features of claim 9. The present invention achieves the third object of the invention by a method for adjusting a movable vehicle element having the features of claim 10.

[0005] Advantageous improvements of the present invention are the subject matter of the dependent claims.

[0006] The present invention achieves the first object of the invention by a lock for locking a movable vehicle element, wherein the lock at least comprises a rotary latch and an adjustment aid, the rotary latch being rotatable about a rotation axis between an open position, a closed position and a closed over-lift position (also referred to as a tensioned position or a running position), and the adjustment aid being used to adjust the movable vehicle element, wherein the adjustment aid comprises an adjustment aid rod which is arranged to: during the operation of the rotary latch into the closed over-lift position, achieve or form a blocking engagement, especially a snap engagement, a friction engagement, a form-fit engagement with the rotary latch.

[0007] In other words: When operating the rotary latch, especially when the lock is de-energized, adjusting the auxiliary rod enables a blocking engagement, thereby enabling manual adjustment of a movable vehicle element relative to a position-fixed vehicle element (such as a vehicle body, etc.). When the movable vehicle element and the position-fixed vehicle element are locked together by the adjustment aid of the lock, the gap dimension, sealing pressure, etc. between the movable vehicle element and the fixed vehicle element can be adjusted in particular.

[0008] The advantage of the present invention lies especially in that, in an assembly plant or workshop, when a lock with a soft-release function and designed as an electric lock is not yet powered and is thus in a de-energized state, the lock can be adjusted to a closed overtravel position, which is consistent with the original or normal driving position. Therefore, in the assembly plant or workshop, the movable vehicle element can be adjusted, in particular, the sealing pressure, gap dimension or similar parameters can be adjusted or corrected. To ensure the closed overtravel position during the assembly or adjustment of the movable vehicle component, an adjustment auxiliary rod is provided, and the overtravel position of the rotary latch is locked by a snap engagement between the adjustment auxiliary rod and the rotary latch.

[0009] Furthermore, in the case where the lock is not powered, the adjustment auxiliary rod (also referred to as a mechanical locking member) can only achieve a blocking engagement with the rotary latch during manual operation of the rotary latch during the assembly process. Outside the closed overtravel position, the adjustment auxiliary rod always remains open.

[0010] For example, the rotary latch includes a control rib, which is arranged to keep the adjustment auxiliary rod open on the one hand and block the adjustment auxiliary rod on the other hand. For example, the control rib can include an open-keeping portion, along which the adjustment auxiliary rod remains open or in an open state during operation, especially during manual operation of the rotary latch. In addition, the control rib can also include a blocking portion, at which the adjustment auxiliary rod achieves or maintains a blocking engagement in the overtravel position.

[0011] In another embodiment, the adjustment auxiliary rod can be preloaded by a spring in the engagement direction. For example, due to the preloading of the adjustment auxiliary rod, a snap engagement is caused between the adjustment auxiliary rod and the rotary latch, with a corresponding preloading force. Therefore, during the opening operation or the disengagement operation, a relatively high frictional force between the adjustment auxiliary rod and the rotary latch needs to be overcome to disengage the adjustment auxiliary rod from the rotary latch.

[0012] Furthermore, the lock includes a blocking mechanism for blocking the lock, wherein the blocking mechanism and the adjustment auxiliary rod are mounted on a common rotary shaft. The blocking mechanism especially includes a pawl, which serves as a pre-locker and / or a main locker for locking the rotary latch, for example, for pre-locking and main-locking the lock during normal operation, especially during electric operation.

[0013] The adjustment assist device and the blocking mechanism can be movably mounted on a common rotating shaft either independently of each other and / or together.

[0014] For example, the adjustment assist lever can be rotatably mounted on a common rotating shaft with the pawl. In a feasible embodiment, the adjustment assist lever can, for example, move independently of the blocking mechanism, especially the pawl, in the latching direction, especially rotate. Thus, the adjustment assist lever can latch with the rotary latch independently of the blocking mechanism.

[0015] Alternatively, the adjustment assist lever can be movably coupled with the pawl in the unlatching direction or the opening direction. Thus, it can be ensured that during the normal operation of the lock, the adjustment assist lever disengages or remains disengaged from the rotary latch.

[0016] In addition, the rotary latch can also include a control rib, which is arranged and interacts with the adjustment assist lever to keep the adjustment assist lever open. In particular, the control rib is arranged to keep the adjustment assist lever open or not engage with the rotary latch in the open position of the lock and / or the closed position of the lock (i.e., during the normal operation of the lock). In other words: during the normal operation of the lock, especially after the movable vehicle component is installed and adjusted, for example, in the open position or the closed position of the lock or during the conventional closing / opening or reopening / reshutting process, through the control rib on the rotary latch, it is ensured that the adjustment assist lever does not snap into the rotary latch and keeps the adjustment assist lever open.

[0017] The movable vehicle element according to the invention, especially the hood or the tailgate, includes the lock described above.

[0018] In the method according to the invention for adjusting the movable vehicle element described above, during the process of assembling the movable vehicle element to another vehicle element, especially a position-fixed vehicle element (such as the vehicle body), at least the following steps are performed:

[0019] - Manual operation, especially manually pressing the rotary latch to the closed over-lift position,

[0020] - Thus, during the manual operation of the rotary latch to the closed over-lift position, the adjustment assist lever is latched with the rotary latch in a blocking manner, and

[0021] - Then, manually adjust the movable vehicle element relative to another vehicle element, especially a position-fixed vehicle element.

[0022] The blocking engagement of the adjusting auxiliary lever and the rotary latch is completed automatically or by itself. For this purpose, the adjusting auxiliary lever is in a preloaded state, especially preloaded by a spring. The adjusting auxiliary device is held open by the control rib. When the rotary latch is manually operated, the adjusting auxiliary device is guided along the control rib and held open by the control rib. At the end of the control rib, that is, when entering the closing overtravel position, the adjusting auxiliary device automatically or by itself engages on the corresponding blocking part of the rotary latch. Description of the Drawings

[0023] Embodiments of the present invention will be described in detail with reference to the accompanying drawings. Among them:

[0024] Figure 1 A vehicle having a movable vehicle element is schematically shown, and the movable vehicle element has a lock for locking other vehicle elements.

[0025] Figure 2 The lock for the movable vehicle element is schematically shown in a top view, and the lock is in the open position in the figure.

[0026] Figure 3 The lock is schematically shown in a top view when the rotary latch starts to close and the blocking mechanism (especially the pre-locker of the pawl) is inserted on the rotary latch.

[0027] Figure 4 The lock and the closing position of the lock are schematically shown in a top view when the rotary latch closes further and the blocking mechanism (especially the main locker of the pawl) is further inserted on the rotary latch.

[0028] Figure 5 The lock is schematically shown in a top view when the rotary latch is further adjusted to the closing overtravel position and the adjusting auxiliary lever and the control rib are disengaged.

[0029] Figure 6 The lock is schematically shown in a top view when the adjusting auxiliary lever and the rotary latch engage in the closing overtravel position.

[0030] Figure 7 The lock is schematically shown in a top view when the adjusting auxiliary lever and the rotary latch are in a snap-fit engagement in the closing overtravel position.

[0031] Figure 8 The lock is schematically shown in a top view when the adjusting auxiliary lever and the rotary latch are in a snap-fit engagement.

[0032] Figure 9 The lock is schematically shown in a top view when the adjusting auxiliary lever and the rotary latch are in a snap-fit engagement and the main locker is inserted in the lock closing position, wherein the adjusting auxiliary lever is preloaded by a spring in the engagement direction, and

[0033] Figure 10 A lock having an electric servo drive and a coupling mechanism is schematically shown in a perspective view.

[0034] The same components in all the figures are denoted by the same reference numerals. Detailed Description

[0035] Figure 1 A vehicle 300 is schematically shown having a movable vehicle element 302 (also referred to as a vehicle part or vehicle assembly), the movable vehicle element having a lock 1 for locking the movable vehicle element 302, such as a rear hatch (as shown), a hood, etc., to another vehicle element 304, in particular a vehicle element with a fixed position (such as a vehicle body or a vehicle panel).

[0036] Figure 2 An example of a lock 1 for a movable vehicle element 302 (as Figure 1 shown) is schematically shown in a top view. For example, the movable vehicle element 302 is a rotatable door, rear hatch or hood mounted on a vehicle 300 (as Figure 1 shown).

[0037] The lock 1 does not show a housing. The lock 1 at least includes a rotary latch 2 rotatable about a rotation axis 100, a blocking mechanism 4 for blocking the lock 1 in a closed position 102 (as Figure 4 shown), and also includes an adjustment assist device 5 having an adjustment assist lever 6.

[0038] For example, the blocking mechanism 4 is designed as a tensioning mechanism. The blocking mechanism 4 includes, for example, a pawl 4.1 as a blocking element. The pawl 4.1 is made of, for example, metal and / or plastic. The pawl 4.1 is rotatably mounted on another rotation axis 101.

[0039] The lock 1 is in an open position 103 in Figure 2 . In the open position 103 of the lock 1, the rotary latch 2 is disengaged from a closing element (not shown in detail), in particular from a lock bow on another vehicle element 304 (as Figure 1 shown), in particular a vehicle part that is fixed (position-fixed / fixed to the vehicle). The rotary latch 2, the blocking mechanism 4 and the closing element together form a locking device.

[0040] According to the design, the lock 1 may include a manual or electric drive mechanism 8 for opening the blocking mechanism 4 and decoupling the rotary latch 2 from the closing element. For example, the closing element is fixed to the vehicle. For example, the closing element is mounted on a vehicle opening, such as a door opening, a rear hatch opening or a hood opening. The lock 1 is composed of the rotary latch 2 and the blocking mechanism 4, for example, mounted on the movable vehicle element 302.

[0041] The movable vehicle element 302 can be adjusted fully automatically and by an electric device from the open position 103 to the closed position 102. The movable vehicle element 302 can also be moved partially manually to the closed position 102, for example, by closing the door to move the movable vehicle element 302 to the closed position. Subsequently, the tensioning mechanism or tensioning mechanical device can be activated and adjusted to support the adjustment of the rotary latch 2 from the closed position 102 (also referred to as the engagement position) to the closed over-lift position 104 (also referred to as the tensioned position or the travel position). A functional description of such a lock 1 can be found, for example, in EP 4 015 745 A1.

[0042] According to the invention, the lock 1 further additionally includes an adjustment auxiliary lever 6, which is arranged to achieve a snap engagement 105 (also referred to as a blocking engagement, as Figure 6 shown) with the rotary latch 2 when the rotary latch 2 is manually operated to the closed over-lift position 104 (as Figure 7 shown). The snap engagement 105 is designed as a blocking engagement between the rotary latch 2 and the adjustment auxiliary lever 6. Alternatively, the blocking engagement can also be designed as a clamping engagement, a friction engagement, or other suitable form-fitting and / or force-fitting engagements.

[0043] The additional adjustment auxiliary lever 6 is used to manually adjust the lock 1 to the closed over-lift position 104 and lock it in an assembly plant or workshop (for example, when the lock 1 is de-energized), so that the movable vehicle element 302 can be adjusted relative to other vehicle elements, especially the fixed vehicle element 304, especially to adjust the sealing pressure, clearance size, etc. Due to the snap engagement 105 between the rotary latch 2 and the adjustment auxiliary lever 6, the rotary latch is locked in the closed over-lift position 104.

[0044] In other words: when the lock 1 is not powered, the adjustment auxiliary lever 6 (also referred to as a mechanical locking element) can only achieve a blocking engagement, especially a snap engagement 105, with the rotary latch 2 during the assembly process when the rotary latch 2 is manually operated. Outside the closed over-lift position 104, the adjustment auxiliary lever 6 always remains open or in an open state, as Figures 2 to 6 shown.

[0045] Wherein, the rotary latch 2 can include a control rib 2.1, which is arranged to keep the adjustment auxiliary lever 6 open on the one hand and block the adjustment auxiliary lever 6 on the other hand. For example, the control rib 2.1 can include an open-holding part 2.1.1, along which the adjustment auxiliary lever 6 remains open or in an open state when the rotary latch 2 is operated, especially manually operated. In addition, the control rib 2.1 can also include a blocking part 2.1.2, at which the adjustment auxiliary lever 6 achieves or maintains a blocking engagement, especially a snap engagement 105, in the over-lift position 104.

[0046] Figure 3 Figure 1 schematically shows the lock 1 when the rotary latch 2 is initially manually closed by rotating it about the axis of rotation 100 (as shown by arrow 200) and the pawl 4.1 falls onto the rotary latch 2, in particular when reaching the pre-locker 10 (as shown by arrow 202). Thereby, the lock 1 is placed in an intermediate position, in particular a pre-locked position. By the pre-latching engagement of the pre-locker 10, in particular the pre-locking stop of the rotary latch 2, the lock 1 is pre-fixed to the pawl 4.1, in particular the reverse locking stop 4.2.

[0047] The adjustment auxiliary lever 6 is not engaged with the rotary latch 2.

[0048] Figure 4 Figure 2 schematically shows the lock 1 when the rotary latch 2 is further closed by rotating it about the axis of rotation 100 (as shown by arrow 200) and the pawl 4.1 falls onto the rotary latch 2, in particular when reaching the main locker 12 (as shown by arrow 202). Thereby, the lock 1 is placed in the closed position 102 (also referred to as the main locking position). By the blocking engagement of the main locker 12, in particular the blocking engagement of the main locking stop of the rotary latch 2, the lock 1 is locked to the pawl 4.1, in particular the reverse locking stop 4.2.

[0049] Additionally, the rotary latch 2 further includes a control rib 2.1. By the control rib 2.1 that protrudes or extends vertically from the rotary latch 2, in particular in the x-direction, the adjustment auxiliary lever 6 is kept open or in an open state. When adjusting the rotary latch 2, the adjustment auxiliary lever 6 slides between the open position 103 and the closed position 102 along the contour of the control rib 2.1. The control rib 2.1 (also referred to as the storage rib) is thus used to keep the adjustment auxiliary lever 6 open during the normal operation of the lock 1.

[0050] The adjustment auxiliary device 5 is kept open by the control rib 2.1. When manually operating the rotary latch 2, the adjustment auxiliary device 5 is at least partially guided along the control rib 2.1, in particular the holding open part 2.1.1, and is kept open by the control rib. At the end of the control rib 2.1, that is, when entering the closed over-lift position 104, the adjustment auxiliary device 5 automatically or self-engages on the corresponding blocking part 2.1.2 of the rotary latch 2.

[0051] Figure 5 Figure 3 schematically shows the lock 1 when the rotary latch 2 is adjusted to the closed over-lift position 104 (as shown by arrow 200) and before the adjustment auxiliary lever 6 disengages from the holding open part 2.1.1 of the control rib 2.1 and before the adjustment auxiliary lever 6 disengages from the blocking part 2.1.2 of the control rib 2.1.

[0052] The pawl 4.1 together with the reverse locking stop 4.2 is disengaged from the main lock 12 of the rotary latch 2. In other words: The rotary latch 2 enters the closing overtravel position 104, in which the reverse locking stop 4.2 and the main lock 12 are arranged at an overtravel distance 14 from each other.

[0053] The adjusting auxiliary lever 6 is still sliding along the holding open part 2.1.1 on the control rib 2.1 and remains in the open state.

[0054] Figure 6 The lock 1 is schematically shown in a top view further moved to the closing overtravel position 104 (as indicated by the arrow 200) and shortly before the disengaging of the adjusting auxiliary lever 6 from the control rib 2.1 and the engaging of the adjusting auxiliary lever 6 with the rotary latch 2. The pawl 4.1 together with the reverse locking stop 4.2 (as Figure 3 shown) is disengaged from the main lock 12 (as Figure 4 shown) of the rotary latch 2.

[0055] The control rib 2.1 can be designed such that the adjusting auxiliary lever 6 is locked onto the rotary latch 2 during such a manual overtravel of the rotary latch 2 to achieve a snap-in engagement 105 to adjust the rotary latch of the movable vehicle element 302 to the closing overtravel position 104, which is greater than the electric overtravel in the normal operation of the lock 1. For example, the control rib 2.1 has corresponding dimensions for this purpose. This can ensure that the adjusting auxiliary lever 6 does not return to the snap-in engagement 105 in the normal mode.

[0056] Figure 7 The lock 1 with the adjusting auxiliary lever 6 and the rotary latch 2 in the snap-in engagement 105 in the closing overtravel position 104 is schematically shown in a top view. The adjusting auxiliary lever 6 achieves the snap-in engagement 105 at the rib end 2.2 of the control rib 2.1 and locks the rotary latch 2 in the closing overtravel position 104. In this manually locked closing overtravel position 104, which corresponds to the normal position or the driving position of the lock 1, the movable vehicle element 302 can be adjusted in an assembly plant or a workshop, in particular with regard to the adjustment or calibration of the sealing pressure, the gap dimension, etc.

[0057] Figure 8 The lock 1 with the adjusting auxiliary lever 6 and the rotary latch 2 in the snap-in engagement 105 is schematically shown in a top view. Depending on the magnitude of the manual overtravel, especially when it is greater than the electric overtravel in the normal operation or the driving position, when the movable vehicle element 302 is released, the rotary latch 2 can perform a limited return movement according to the arrow 204 until the rib end 2.2 of the rotary latch 2 is locked in the snap-in engagement 105 of the retracted adjusting lever 6 with the blocking part 2.1.2.

[0058] Figure 9Fig. 0 schematically shows the lock 1 in the closed over-lift position 104 and the adjustment auxiliary lever 6 and the rotary latch 2 in the snap-in engagement 105 at the blocking part 2.1.2 (as Figure 8 and Figure 9 shown).

[0059] The adjustment auxiliary lever 6 is preloaded by a spring in the engagement direction 106.

[0060] Due to the preloading of the adjustment auxiliary lever 6, when the adjustment auxiliary lever 6 is locked to the rotary latch 2, a corresponding pre-pressure for maintaining the snap-in engagement 105 between the adjustment auxiliary lever 6 and the rotary latch 2 occurs. For example, a preloading spring 16 can be provided. One end of the preloading spring 16 is connected to the adjustment auxiliary lever 6 and the other end is connected to another rotary shaft 101.

[0061] The adjustment auxiliary lever 6 and the pawl 4.1 are rotatably mounted on another common rotary shaft 101.

[0062] For example, the adjustment auxiliary lever 6 can move, in particular rotate, in the engagement direction 106 independently of the blocking mechanism 4, especially the pawl 4.1. Therefore, the adjustment auxiliary lever 6 and the rotary latch 2 can be manually adjusted independently of the blocking mechanism 4 so that an ideal snap-in engagement 105 between the adjustment auxiliary lever and the rotary latch 2 is achieved in the closed over-lift position 104.

[0063] Figure 10 Fig. 20 schematically shows the lock 1 having a drive mechanism 8 for the blocking mechanism 4, the drive mechanism being designed as an electric servo drive 8.1 and a coupling mechanism 8.2. The lock 1 is in the closed position 102. The adjustment auxiliary lever 6 is opened by the control rib 2.1 and cannot enter the snap-in engagement 105 (as Figure 8 shown).

[0064] In order to enable the adjustment auxiliary lever 6 to disengage from the snap-in engagement 105, the adjustment auxiliary lever 6 and the pawl 4.1 are movably coupled in the disengaging direction 107 or the opening direction. Therefore, it can be ensured that during the normal operation of the lock 1, the adjustment auxiliary lever 6 disengages from or remains disengaged from the rotary latch 2 or remains open through the control rib 2.1. During this process, the pawl 4.1 and accordingly the adjustment auxiliary lever 6 can be manually set to the normal position (closed position 102 or open position 103) by, for example, a flexible sleeve wire rope 18 or the like, while the adjustment auxiliary lever 6 is always kept open by the control rib 2.1 during normal operation.

[0065] In summary, the present invention aims to adjust the clearance dimension and / or the sealing pressure of the movable vehicle element 302 during the installation of the vehicle 300 relative to another, especially fixed, vehicle element 304.

[0066] During the installation of a movable vehicle element onto another vehicle element 304 (as Figure 1 shown), the adjustment of the movable vehicle element 302 in particular involves at least the following steps:

[0067] - Manual operation, in particular manually pressing the rotary latch 2 to the closed over-lift position 104,

[0068] - And thus, when manually operating the rotary latch 2 to the closed over-lift position 104, causing the adjustment auxiliary lever 6 to engage with the rotary latch 2 in a blocking manner, in particular a snap-in engagement 105, as described previously by Figures 6 to 8 stated, and

[0069] - Then, when the lock 1 is locked in the closed over-lift position 104 by the adjustment auxiliary device 5, manually adjust the movable vehicle element 302 relative to the other vehicle element, in particular the fixed vehicle element 304.

[0070] The blocking engagement of the adjustment auxiliary lever 6 with the rotary latch 2 is automatically or self-completed. For this purpose, the adjustment auxiliary lever 6 is in a preloaded state, in particular a spring-preloaded state. The adjustment auxiliary device 5 is held open by the control rib 2.1 until the lock 1 is manually pushed to the closed over-lift position 104. When manually operating the rotary latch 2, the adjustment auxiliary device 5 is guided along the control rib and held open by the control rib 2.1. At the end of the control rib 2.1, that is, when entering the closed over-lift position 104, the adjustment auxiliary device 5 automatically or self-engages on the corresponding blocking part 2.1.2 of the rotary latch 2.

[0071] List of reference numerals

[0072] 1 Lock

[0073] 2 Rotary latch

[0074] 2.1 Control rib

[0075] 2.1.1 Holding-open part

[0076] 2.1.2 Blocking part

[0077] 2.2 Rib end

[0078] 4 Blocking mechanism

[0079] 4.1 Pawl

[0080] 4.2 Reverse locking stop

[0081] 5 Adjustment auxiliary device

[0082] 6 Adjustment auxiliary lever

[0083] 8 Driving mechanism

[0084] 8.1 Electric servo drive

[0085] 8.2 Coupling mechanism

[0086] 10 Pre-locker

[0087] 12 Main locker

[0088] 14 Overlift distance

[0089] 16 Preloading spring

[0090] 18 Flexible sleeve wire rope

[0091] 100 Rotating shaft

[0092] 101 Other / common rotating shaft

[0093] 102 Closed position

[0094] 103 Open position

[0095] 104 Closed overlift position

[0096] 105 Snap fit

[0097] 106 Engagement direction

[0098] 107 Disengagement direction

[0099] 200 - 204 Arrow

[0100] 300 Vehicle

[0101] 302 Movable vehicle element

[0102] 304 Other vehicle elements

[0103] x x direction

Claims

1. A lock (1) for a movable vehicle element (302), wherein, The lock (1) at least comprises the following components: - a rotary latch (2) for a closing element, and - an adjustment aid (5) for adjusting the movable vehicle element (302), wherein the rotary latch (2) is capable of rotating about a rotation axis (100) between an open position (103), a closed position (102) and a closed overtravel position (104), wherein the adjustment aid (5) comprises an adjustment aid lever (6) which is arranged to effect a blocking engagement with the rotary latch (2) during the operation of the rotary latch (2) into the closed overtravel position (104).

2. The lock (1) according to claim 1, Among them, in the case where the lock (1) is not powered, the adjustment aid lever (6) effects a snap engagement (105) with the rotary latch (2) only during the manual operation of the rotary latch (2).

3. The lock (1) according to claim 1 or 2, Among them, the adjustment aid lever (6) is always open or remains open outside the closed overtravel position (104).

4. The lock (1) according to any one of the preceding claims, Among them, the rotary latch (2) comprises a control rib (2.1) which is arranged to keep the adjustment aid lever (6) open on the one hand and to block the adjustment aid lever (6) on the other hand.

5. The lock (1) according to claim 4, Among them, the control rib (2.1) comprises an open-holding part (2.1.1), and during the operation of the rotary latch (2), the adjustment aid lever (6) remains open or is in an open state along the open-holding part.

6. The lock (1) according to claim 4 or 5, Among them, the control rib (2.1) comprises a blocking part (2.1.2), at which the adjustment aid lever (6) effects or maintains a blocking engagement at the closed overtravel position (104).

7. The lock (1) according to any one of the preceding claims, Among them, the adjustment aid lever (6) is preloaded by a spring in the engagement direction (106) along the rotary latch (2).

8. The lock (1) according to any one of the preceding claims, Among them, a blocking mechanism (4) for blocking the lock (1) is further provided, and wherein the blocking mechanism (4) and the adjustment aid (5) are mounted on a common rotation axis (101).

9. A movable vehicle element (302) having a lock (1) according to any one of the preceding claims.

10. A method for adjusting a movable vehicle element (302) during the assembly of the movable vehicle element (302) according to claim 9 to another vehicle element (304), wherein, The movable vehicle element (302) has a lock (1) for locking according to any one of claims 1 to 8, wherein the method at least comprises the following steps: - manually operating the rotary latch (2) to move it into the closed overtravel position (104), - effecting a blocking engagement of the adjustment aid lever (6) with the rotary latch (2), and - manually adjusting the movable vehicle element (302) relative to another vehicle element (304).

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