EP1717392A2 - Additional lock arrangement for vehicle sliding door - Google Patents

Abstract

The sliding door has an auxiliary lock arrangement (2) provided with the main lock arrangement (1) and which supports the main lock arrangement. Auxiliary lock arrangement is formed in such a manner that the sliding door is fixable by an auxiliary lock arrangement in the opened position. Independent claims are also included for the following: (A) Lock mechanism; and (B) Lock arrangement.

Description

The present invention relates to a sliding door for a motor vehicle according to the preamble of claim 1 and to a lock arrangement for the sliding door of a motor vehicle according to the preamble of claim 19.

In the present case, all components which are necessary for the functionality of a sliding door are combined under the term "sliding door". These include, in addition to the displaceable component, the corresponding frame provided in the motor vehicle body, possibly existing guide rails, etc. In the following, the term "sliding door" is used interchangeably with the term "displaceable component" where it is used for easy readability.

Sliding doors have long been used for vans and Klezzansporter, more recently also for passenger cars. All sliding doors have in common that they are adjustable by a sliding movement in an open and in a closed position. This sliding movement takes place substantially parallel to the side wall of the motor vehicle. Particularly advantageous is the fact that an undisturbed loading and unloading or getting in and out is possible.

Numerous variants are known for the structural implementation of the movement kinematics of a sliding door. This includes, for example, the principle of the rail guide, which is possibly supplemented by a lever arrangement. In the present case, it does not depend on the specific structural realization of the motion kinematics. Vielinelnr the solution of the invention is applicable to all conceivable constructions. It also does not matter in the present case, where the sliding door is arranged on the motor vehicle, so that both laterally and rearwardly arranged on the motor vehicle sliding doors are included.

In particular, in the use of sliding doors for cars wins ensuring a secure fixation of the sliding door in the closed position increasingly important. Unintentional opening of the sliding door, for example, by a force acting from the inside perpendicular to the sliding door force here leads to significant dangers to the occupants of the motor vehicle.

At the same time, the requirements for ease of use are steadily increasing. This includes, for example, the function of fixing the sliding door in the open position, so that the sliding door does not automatically close during loading and unloading or when entering and exiting. This function is especially necessary when the motor vehicle is so on a slope that pushes the weight of the sliding door in the closing direction.

One approach to ensure the secure fixing of the sliding door in the closed position shows the known sliding door ( US 4,662,109 A ), from which the present invention proceeds. This is a rail-guided sliding door, which has a main lock assembly on the rear side seen in the direction of travel of the sliding door and an additional lock arrangement on the seen in the direction of travel front side of the sliding door. The auxiliary lock assembly assists the main lock assembly in fixing the sliding door in the closed position. This is particularly advantageous in a force acting from the inside outwards perpendicular to the sliding door force, since this force is now taken over three points of force application, namely the main lock assembly, the rail guide and the auxiliary lock assembly. Furthermore, the additional lock arrangement counteracts an adjustment of the sliding door in the opening direction, ie substantially along the direction of travel. In one embodiment, it is such that the main lock assembly has the usual closure elements latch and pawl, while the auxiliary lock assembly is realized by a simple hook In normal operation, the main lock assembly takes most of the time required for the fixation of the sliding door in the closed position holding force. A disadvantage of the known sliding door is the fact that the ease of use is comparatively low. This is, inter alia, that a fixation of the sliding door in the open position is not provided.

Another well-known sliding door ( DE 2 347 702 A1 ) has, in addition to a main lock assembly on a fixing arrangement by which the sliding door can be fixed in the open position. The fixing arrangement is arranged with a pivotable pin which is arranged on the displaceable part of the sliding door and which, when the sliding door is moved into the open position, engages in a hook-shaped formation and thus prevents a return movement of the sliding door. A disadvantage of this sliding door with fixing the low security against accidental opening of the sliding door out of the closed position.

Similarly, a known sliding door ( GB 2 210 339 A ), which has a main lock assembly for fixing the sliding door in the closed position and a fixing arrangement for fixing the sliding door in the open position. Again, the security of the fixation of the sliding door in the closed position against unwanted opening is low. In one embodiment, the main lock assembly simultaneously assumes the function of the fixing, whereby the design effort is reduced. However, this does not lead to an optimal solution with regard to the structural design of the components involved, since the holding forces are considerably lower when the sliding door is in the open position than in the sliding door located in the closed position.

A corresponding combination of the above two functions, namely the fixing of the sliding door in the closed position and the fixing of the sliding door in the open position, finally shows another known sliding door ( US 5,520,423 A ), which has a system of two lock traps. Both lock traps are assigned to both functions above. In any case, this also raises the problem of optimum structural design.

The present invention is based on the problem, the known sliding door for a motor vehicle in such a way and further, that a secure fixation of the sliding door in the closed position with maximum ease of use with minimal design effort is guaranteed.

The above problem is solved by a sliding door for a motor vehicle according to the preamble of claim 1 by the features of the characterizing part of claim 1.

It is essential to consider that the additional lock assembly is not only the support of the main lock assembly in the fixation of the sliding door in the closed position, but that the sliding door is further fixed by the additional lock assembly in the open position. This ensures on the one hand a secure fixation of the sliding door in the closed position. On the other hand, the fixing of the sliding door is ensured in the open position, with minimal design effort.

Particularly advantageous is the fact that the additional lock assembly for fixing the sliding door in the closed position on the one hand and for the fixation of the sliding door in the open position on the other hand compared with the main lock assembly does not need to be particularly strong. As a result, the sliding door can be interpreted in an optimal manner so that oversizing is largely avoided. This generally leads to a reduction in production costs.

The preferred embodiment according to claim 5 with a latch, which has a first fork-shaped formation and a second fork-shaped formation, leads to a particularly simple and at the same time compact construction.

The further preferred embodiment according to claim 10 ensures a particularly simple structural design, since the pawl engages only on a single paragraph - catch - the latch. The detent position of the latch is in each case identical in the open position befindlicher sliding door and located in the closed position sliding door.

A further increase in the ease of use can be achieved by the embodiment according to claim 15 by the pawl of the auxiliary lock assembly is designed to be motorized liftable. For the detailed embodiment of claim 16 gives preferred approaches.

According to another teaching, which has independent significance, a lock assembly for the sliding door of a motor vehicle is claimed, which corresponds to the above additional lock assembly. Reference may be made to the above statements.

Fig. 1

in schematischer Darstellung ein Kraftfahrzeug mit der erfindungsgemäßen Schiebetür,

Fig. 2

die erfindungsgemäße Schiebetür in der geöffneten Stellung in einer Schnittansicht gemäß Linie II-II in Fig. 1,

Fig. 3

die Schiebetür gemäß Fig. 2 in der geschlossenen Stellung,

Fig. 4

in schematischer Darstellung die Schloßfalle und die Sperrklinke der Zusatzschloßanordnung bei in der geöffneten Stellung befindlicher Schiebetür,

Fig. 5

die Darstellung gemäß Fig. 4 bei in der geschlossenen Stellung befindlicher Schiebetür,

Fig. 6

die Darstellung gemäß Fig. 5 bei in einer Zwischenstellung befindlicher Schiebetür,

Fig. 7

die Zusatzschloßanordnung mit einem Antrieb zum motorischen Ausheben der Sperrklinke in einer Darstellung gemäß Fig. 4,

Fig. 8

die Darstellung gemäß Fig. 7 mit einem Antrieb nach einer zweiten Ausführungsform,

Fig. 9

die Darstellung gemäß Fig. 7 mit einem Antrieb nach einer dritten Ausführungsform.

Further details, features and advantages of the present invention will be explained in more detail with reference to the drawing of preferred embodiments. In the drawing shows

Fig. 1

a schematic representation of a motor vehicle with the sliding door according to the invention,

Fig. 2

the sliding door according to the invention in the open position in a sectional view along line II-II in Fig. 1,

Fig. 3

the sliding door according to FIG. 2 in the closed position,

Fig. 4

in a schematic representation of the lock latch and the pawl of the auxiliary lock assembly in befindlichem in the open position sliding door,

Fig. 5

the representation according to FIG. 4 with the sliding door in the closed position,

Fig. 6

the representation according to FIG. 5 with the sliding door in an intermediate position,

Fig. 7

the additional lock arrangement with a drive for motorized lifting of the pawl in a representation according to FIG. 4,

Fig. 8

7 shows the illustration according to FIG. 7 with a drive according to a second embodiment,

Fig. 9

the illustration of FIG. 7 with a drive according to a third embodiment.

Fig. 1 shows a motor vehicle, which is equipped with the sliding door according to the invention. The sliding door can be adjusted by a sliding movement in an open and in a closed position and thus closes a loading and unloading the motor vehicle. For this purpose, the sliding door is rail-guided, as will be explained in more detail below. But it can also be chosen other constructive solutions to realize the desired movement kinematics of the sliding door.

The sliding door is equipped with a main lock assembly 1 by which the sliding door can be fixed in the closed position. To support the main lock assembly 1 in the fixation of the sliding door in the closed position, an additional lock assembly 2 is provided. It is essential that the additional lock assembly 2 is further configured such that the sliding door by the auxiliary lock assembly 2 in the open position (Fig. 2) is fixable.

The main lock assembly 1 is indicated in FIGS. 1 to 3 only schematically. The main lock assembly 1 preferably has the usual closing elements lock catch and pawl, which cooperate in the usual way with a closing wedge o. For the realization of the main lock assembly 1 but many other variants are conceivable. On the specific design of the main lock assembly 1 is not important for the present teaching.

In a preferred embodiment, the additional lock assembly 2 is designed so that it can absorb forces perpendicular to the direction of travel in befindlichem in the closed position sliding door. This means in the first place perpendicular to the sliding door from the inside out acting forces. Such a configuration is particularly advantageous for cases in which objects or people bouncing against the door while driving. The additional lock arrangement 2 then counteracts the unwanted opening of the sliding door.

An optimal distribution of the holding forces results from the fact that when in the closed position sliding door, the main lock assembly. 1 and the auxiliary lock assembly 2 seen in the direction of travel are arranged on opposite sides of the sliding door.

There are several variants conceivable, at which height the main lock assembly 1 on the one hand and the auxiliary lock assembly 2 on the other hand are arranged on the sliding door. According to a preferred embodiment, in which the main lock arrangement 1 is arranged in a vertical direction in the central region of the sliding door, the auxiliary lock arrangement 2 is seen in a vertical direction in the lower area or in the upper area of the sliding door Sliding door is arranged. In principle, however, both the main lock arrangement 1 and the additional lock arrangement 2 can be arranged in a vertical direction in the middle region of the sliding door.

It can be seen in FIGS. 2 and 3 that the additional lock assembly 2 has an engagement module 3, a first engagement member 4a and a second engagement member 4b, wherein the engagement module 3 in the adjustment of the sliding door 1 in the open position in engagement with the first engagement member 4a comes and thereby the sliding door 1 in the open position fixed (Fig. 2). In the adjustment of the sliding door 1 in the closed position, the engagement module 3 then comes into engagement with the second engagement member 4b, whereby the sliding door 1 is fixed in the closed position. This is to be understood in the above sense, that the additional lock assembly 2, the main lock assembly 1 is supported in the fixation of the sliding door in the closed position.

It may be noted that, in principle, with appropriate arrangement and design of the main lock assembly 1 and additional lock assembly 2, the first engagement member 4a of the auxiliary lock assembly 2 can also take over the function of the closing wedge of the main lock assembly 1.

4 and 6 show a particularly preferred embodiment of the engagement module 3 of the auxiliary lock assembly 2. Here, the engagement module 3 for engaging with the first engagement member 4a and the second engagement member 4b a about a pivot axis 5 pivotable latch 6 and one of the latch 6 associated pawl 7. The latch 6 is adjustable between an open position (FIG. 6) and a latching position (FIGS. 4, 5) and is held by the pawl 7 in the latched position.

The lock catch 6 allows engagement with the first engagement element 4a on the one hand and the second engagement element 4b on the other hand. In a preferred embodiment, the lock catch 6 is provided with a first fork-shaped formation 6a for engagement with the first engagement element 4a and with a second fork-shaped formation 6b for engagement with the second engagement element 4b. In the illustrated and thus preferred embodiment, the two fork-shaped formations open towards opposite directions and extend in opposite directions. The pivot axis 5 of the latch 6 is preferably arranged between the two fork-shaped formations 6a, 6b. The latch 6 is thus designed substantially H-shaped, as the illustrations in Figs. 4 to 6 can be seen. It can also be seen from these illustrations that both fork-shaped formations 6a, 6b each have two fork arms of different lengths. The particular advantage of this embodiment will become apparent from the following explanation of the operation of the engagement module 3.

When the sliding door is moved to the open position, to the left in FIG. 3, the first engagement element 4a engages the first fork-shaped formation 6a (FIG. 6) and presses the latch into the latching position shown in FIG. When adjusting the sliding door in the closed position, however, the second engaging member 4b comes into engagement with the second fork-shaped formation 6b and pushes the latch 6 again in the locked position. For this purpose, the lock latch 6 also pivots to the right, so that the pivoting of the latch 6 takes place during the adjustment of the sliding door in the open position and in the closed position in the same pivoting direction.

In the exemplary embodiment illustrated in FIGS. 4 to 6, it is the case that in the adjustment of the sliding door in the open position or in the closed position and in the engagement with the engagement module 3, the two engagement elements 4a, 4b relative to the engagement module 3 are each located on "fictitious" motion paths that lead past the pivot axis 5 of the latch 6. According to FIG. 4, the movement path associated with the first engagement element 4 a passes above the pivot axis 5 of the lock catch 6 above. According to FIG. 5, the movement path assigned to the second engagement element 4b passes below the pivot axis 5 of the lock catch 6. This does not mean that the two engagement elements 4a, 4b actually pass by the pivot axis 5. It should only be clear that the two engagement elements 4a, 4b are arranged offset from each other to ensure that they can come into engagement with the respective associated fork-shaped formation 6a, 6b.

With the above explanation, it is also clear from the illustration according to FIG. 6 why the left fork arm of the first fork-shaped formation 6a or the right fork arm of the second fork-shaped formation 6b should be made shorter than the respectively opposite fork arm. This ensures namely that the two engagement elements 4 a, 4 b come into engagement with the respectively associated, longer fork arm and thereby press the latch 6 into the rest position. For this, it is further necessary that the lock catch 6 is arranged diagonally in the open position with respect to the above-described, fictitious movement paths, as shown in Fig. 6.

With the above embodiment of the latch 6 results in respect to the two engagement elements 4a, 4b a completely symmetrical operation of the latch 6. In the simplest case, the latch 6 is configured with respect to its pivot axis 5 substantially point-symmetrical. This can in particular bring manufacturing advantages.

The locking of the latch 6 in the locking position is particularly simple and compact in the embodiment shown in FIGS. 4 to 6 and so far preferred embodiment. For engagement with the pawl 7, the latch 6 has a catch in the form of a shoulder 8, said shoulder 8 is arranged on a fork arm of one of the two fork-shaped formations 6a, 6b. The pawl 7 can be brought by pivoting about its pivot axis 9 in engagement with and disengaged from the latch 6. Here it is so that the pawl 7 with the longer fork arm of the first fork-shaped formation 6a is engageable. Depending on the application, two notches can be provided here, for example, to realize a pre-rest and a main catch, as is common in the known side door locks.

In principle, it may be provided that a plurality of preferably parallel to each other arranged latch traps 6 are provided in order to accommodate greater holding forces can. In a particularly preferred embodiment, however, it is the case that the latch 6 is the only latch 6 of the engagement module 3.

In the embodiment shown in FIGS. 2 and 3, the pivot axis 5 of the lock latch 6 is aligned substantially vertically. It may also be advantageous to align the pivot axis 5 of the latch 6 substantially horizontally.

Numerous variants are conceivable for the design of the engagement elements 4a, 4b. The engagement elements 4a, 4b can be configured, for example, as a striker, as a latch bolt or the like.

The lock latch 6 described above with two fork-shaped formations 6a, 6b represents a particularly simple design option for realizing the above-described double function of the additional lock arrangement 2. Particularly advantageous is the fact that the movement of the latch 6 and the pawl 7 during closing and when opening the sliding door are identical.

The latch 6 is preferably biased in its open position against a stop 6c. The pawl 7 is preferably biased. In the embodiment shown in FIGS. 4 to 6, a bias of the pawl 7 is provided in the incident position. For the respective bias of the latch 6 on the one hand and the pawl 7 on the other hand, the springs 10, 11 assigned.

It has already been pointed out that in the present case any structural realization of the movement kinematics of the sliding door, in particular of the displaceable Part 12 of the sliding door, is applicable. In the illustrated preferred embodiment, the sliding door is guided in an inner guide rail 13 and has a roller arrangement 14 for this purpose. The caster assembly 14 has two lateral guide rollers 15, 16 and another roller 17 for receiving the weight of the sliding member 12 of the sliding door. The guide rail 13 is arranged in the lower region of the loading and unloading.

In order to achieve a stable arrangement, according to an advantageous embodiment, the same guide rail 13 may be provided in the upper region of the loading and unloading. An outer guide rail 18 is preferably arranged on the outside of the vehicle body, which ensures stability, in particular during the adjustment of the sliding door into the open position. The coupling between the displaceable component 12 of the sliding door and the outer guide rail 18 is preferably via a pivot member 19th

The inner guide rail 13 has a portion bent toward the vehicle interior, which allows the "sliding" of the sliding part 12 of the sliding door so that the closed sliding door is initially flush with the vehicle body on one side. On the other hand, the pivot member 19 provides the desired flush termination by swinging in accordance with the adjustment of the sliding door in the closed position accordingly. When swinging the main lock assembly 1 is activated accordingly, so that it ensures a fixation of the sliding door in the closed position. Due to the above-described, curved configuration of the inner guide rail 13, the roller assembly 14 must be pivotally coupled to the sliding part 12 of the sliding door about a pivot axis 20. This results from the synopsis of FIGS. 2 and 3.

The engagement module 3 and the roller assembly 14 are arranged together on a support member 21, wherein on the support member 21 of the sliding part 12 of the sliding door is attached. The engagement module 3 has two inlet slots 22 for the two engagement elements 4a, 4b.

In the embodiment shown in Fig. 7, the pawl 7 of the engagement module 3 via a Bowden cable 23 can be raised and this with the soul 24 of the Bowden cable 23rd coupled. This allows a space-saving and flexible arrangement of the engagement module. 3

It may further be provided that the additional lock assembly 2 is actuated by a motor and that for this purpose the pawl 7 of the engagement module 3 by a drive motor can be raised. For this purpose, the drive is equipped with a corresponding drive motor 25. The drive can, as shown in Fig. 7, via the Bowden cable 23 with the pawl 7 are engaged.

But it can also be provided that the drive next to the drive motor 25 has an actuating element 26, and that the actuating element 26 for motorized lifting of the pawl 7 in engagement with the pawl 7 can be brought. This is shown schematically in FIG. 8.

In a further preferred embodiment, the u.a. enables a particularly quiet operation, it is provided that the drive has a drive motor 25 which is coupled to the motorized lifting of the pawl 7 via a flexible traction means 27, preferably via a cable with the pawl 7. In the exemplary embodiment illustrated in FIG. 9, the cable pull 27 is wound directly onto the drive shaft of the drive motor 25.

Finally, it should be pointed out that the main lock assembly 1 is preferably equipped with a lock mechanism, not shown, for the realization of various functional states. Such functional states are, for example, the locking function CL known for side-door locks, anti-theft function DL or child-safety function CS. The additional lock assembly 2 is then preferably connected to the lock mechanism of the main lock assembly 1. Thus, the main lock assembly 1 includes, so to speak, the "intelligence" of the sliding door, while the additional lock assembly 2 has only the closure elements described above.

In principle, the main cable arrangement 1 can also be designed to be motor-operated as described above in connection with the additional lock arrangement 2. It is also conceivable that only a single drive for the motor actuation of both the main lock assembly 1 and the auxiliary lock assembly 2 is provided. The two lock assemblies 1, 2 can then be connected to each other, for example via a Bowden cable drive technology.

In all variants, it is anyway so that when you open the sliding door from the closed position, first the additional lock assembly 2 and then the main lock assembly 1 opens. The reason for this order is that jamming of the auxiliary lock assembly 2 should be avoided. This Verklemmneigung arises from the fact that the auxiliary lock assembly 2 is usually not designed to accommodate the entire holding force of the sliding door located in the closed position, so that it at too early opening of the main lock assembly 1 to a slight deformation of the additional lock assembly 2, and so that a corresponding deadlock can occur.

The sliding door is preferably provided for the operation of an outside door handle 28 and a door inner handle, not shown. It is also conceivable, however, an exclusively electrical operation, for example via a remote control o.

Finally, it should be pointed out that according to another teaching, the independent significance, a lock assembly 2 is claimed, which corresponds to the basic structure of the additional lock assembly 2 with the latch 6 of FIG. 4 to 9. Depending on the design, this lock assembly 2 can also be used in the sense of an additional lock assembly 2 to support a main lock assembly 1. The lock assembly 2 may also be designed so that it is equivalent to a main lock assembly 1 of the sliding door with respect to the male holding forces. Finally, the lock assembly 2 can be applied in certain applications as the only lock assembly 2 a sliding door.

Claims (20)

Sliding door for a motor vehicle, wherein the sliding door is adjustable by a sliding movement in an open and in a closed position, wherein a main lock assembly (1) is provided, through which the sliding door is fixable in the closed position, with an additional lock assembly (2) to support the main lock arrangement (1) is provided in the fixing of the sliding door in the closed position,
characterized,
that the additional lock arrangement (2) is further configured such that the sliding door can be fixed in the open position by the additional lock arrangement (2). Sliding door according to claim 1, characterized in that the additional lock arrangement (2) is designed in such a way that it can absorb forces perpendicular to the direction of travel when the sliding door is in the closed position. Sliding door according to Claim 1 or 2, characterized in that, when the sliding door is in the closed position, the main lock arrangement (1) and the auxiliary lock arrangement (2) are arranged on opposite sides of the sliding door when viewed in the direction of travel. Sliding door according to one of the preceding claims, characterized in that the main lock arrangement (1) is arranged in a vertical direction in the middle region of the sliding door, preferably in that the auxiliary lock arrangement (2) seen in a vertical direction in the lower region or in the upper region of Sliding door is arranged. Sliding door according to one of the preceding claims, characterized in that the additional lock arrangement (2) has an engagement module (3), a first engagement element (4a) and a second engagement element (4b), wherein the engagement module (3) moves into the sliding door during the adjustment of the sliding door opened position in engagement with the first engagement element (4a) comes and thereby fixed the sliding door in the open position and wherein the engagement module (3) when the sliding door is moved to the closed position, it engages with the second engaging element (4b) and thereby fixes the sliding door in the closed position, preferably that the engaging module (3) is engaged with the first engaging element (4a) and the second engagement element (4b) has a pivotable about a pivot axis (5) lock latch (6) and one of the latch (6) associated pawl (7), that the latch (6) between an open position and a detent position is adjustable and of the Pawl (7) is held in the detent position, more preferably, that the latch (6) has a first fork-shaped formation (6a) for engagement with the first engagement element (4a) and a second fork-shaped formation (6b) for engagement with the second Engaging element (4b), more preferably, that the two fork-shaped formations (6a, 6b) open in opposite directions and in en run in opposite directions. Sliding door according to claim 5, characterized in that the pivot axis (5) of the latch (6) between the two fork-shaped formations (6a, 6b) is arranged, preferably that both fork-shaped formations (6a, 6b) each have two fork arms of different lengths. Sliding door according to Claim 5 or 6, characterized in that, when the sliding door is moved to the open position, the first engagement element (4a) engages the first fork-shaped formation (6a) and pushes the latch (6) into the latching position, and during the adjustment of the sliding door in the closed position, the second engagement element (4b) comes into engagement with the second fork-shaped formation (6b) and pushes the latch (6) in the locking position, preferably, that the pivoting of the latch (6) during the adjustment the sliding door is in the open position and in the closed position in the same pivoting direction. Sliding door according to one of claims 5 to 7, characterized in that during the adjustment of the sliding door in the open position or in the closed position and during engagement with the engagement module (3), the two engagement elements (4a, 4b) relative to the engagement module (3) seen in each case on trajectories on the pivot axis (5) of the Pass lock latch (6), preferably, that the movement paths are arranged substantially parallel to each other and spaced from each other. Sliding door according to one of claims 5 to 8, characterized in that the lock catch (6) is configured substantially point-symmetrically with respect to its pivot axis (5). Sliding door according to one of claims 5 to 9, characterized in that the latch (6) has a shoulder (8) for engagement with the pawl (7), preferably that the shoulder (8) on a fork arm of one of the two fork-shaped formations (6a, 6b) is arranged. Lock catch according to one of Claims 5 to 10, characterized in that the lock catch (6) is the only lock catch (6) of the engagement module (3). Sliding door according to one of the preceding claims, characterized in that the engagement elements (4a, 4b) are designed as striker, locking bolt or the like. Sliding door according to one of the preceding claims, characterized in that the sliding door is guided in a guide rail (13) and for this purpose has a roller arrangement (14). Sliding door according to one of the preceding claims, characterized in that the pawl (7) of the engagement module (3) via a Bowden cable (23) can be raised and for this purpose with the soul (24) of the Bowden cable (23) is coupled. Sliding door according to one of the preceding claims, characterized in that the pawl (7) of the engagement module (3) can be raised by a drive motor. Sliding door according to claim 15, characterized in that the drive has a drive motor (25) and an adjusting element (26) and that the adjusting element (26) for motorized lifting of the pawl (7) in engagement with the pawl (7) can be brought, or in that the drive is a drive motor (25) which is coupled to the motorized lifting of the pawl (7) via a flexible traction means (27), preferably via a cable, with the pawl (7). Sliding door according to one of the preceding claims, characterized in that the main lock arrangement (1) is equipped with a lock mechanism for realizing various functional states such as CL, DL or CS and that the additional lock arrangement (2) is connected to the lock mechanism of the main lock arrangement (1). Sliding door according to one of the preceding claims, characterized in that the arrangement is such that when the sliding door is opened from the closed position, first the additional lock arrangement (2) and then the main lock arrangement (1) opens. Lock assembly for the sliding door of a motor vehicle, wherein the sliding door is adjustable by a sliding movement in an open and in a closed position, wherein the sliding door by the lock assembly (2) is fixable in the closed position,
characterized,
in that the lock arrangement (2) has an engagement module (3), a first engagement element (4a) and a second engagement element (4b), wherein the engagement module (3) engages in the open position in engagement with the first engagement element (4a ) and thereby the sliding door in the open position fixed and that the engagement module (3) in the adjustment of the sliding door in the closed position into engagement with the second engagement element (4b) comes and thereby fixed the sliding door in the closed position that the engagement module (3) for engagement with the first engagement element (4a) and the second engagement element (4b) has a pivot axis (5) pivotable latch (6) and one of the latch (6) associated pawl (7) that the latch ( 6) is adjustable between an open position and a detent position and is held by the pawl (7) in the detent position that the latch (6) a first fork-shaped formation (6a) for engagement with the first engagement element (4a) and a second fork-shaped formation (6b) for engagement with the second engagement element (4b) and that the two fork-shaped formations (6a, 6b) open in opposite directions and extend in opposite directions. Lock arrangement according to claim 19, characterized by the features of the characterizing part of one or more of claims 6 to 16.

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