DE102013207027B4 - Vehicle seat, method for assembling a vehicle seat and seat fitting - Google Patents

Abstract

Vehicle seat, with at least one seat frame that is adjustable in the longitudinal direction, - a locking device for the seat longitudinal adjustment to lock the seat frame in a seat longitudinal position, - a backrest (R) that is pivotably mounted on the seat frame via a seat fitting (B) about a pivot axis (D1) , - A locking device (V) for locking the backrest (R) in a use position, wherein the locking device (V) has a locking element (1) and a locking element (5) and the locking element (1) for locking the backrest (R) with the locking element (5) is engaged and can be brought out of engagement with the locking element (5) for folding the backrest (R) in the direction of a seat surface of the seat frame, and - a coupling mechanism (2, 6) for coupling the locking device (V) for the backrest (R) with the locking device for the longitudinal adjustment of the seat, the coupling mechanism (2, 6) at least one m it has the locking device (V) operatively connected driver element (2) and a coupling element (6) operatively connected to the locking device and the driver element (2) can act on the coupling element (6) when the backrest (R) is folded forward, so that when the Backrest (R) the locking of the locking device is released and the seat frame is adjustable in the longitudinal direction, characterized in that the locking element (1) and the driving element (2) are arranged on one and the same fitting side of the seat fitting (B), which is either an inside or defines an outside of the seat fitting (B) opposite the inside in the direction of the pivot axis (D1) of the backrest (R), the locking element (1) and the driver element (2) on one side of a backrest adapter (AL) of the seat fitting (B) are arranged, which is fixed to the backrest (R).

Description

The present invention relates in particular to a vehicle seat according to the preamble of claim 1, which is equipped with a so-called easy entry function, as well as a method for mounting a vehicle seat according to claim 12 and a seat fitting according to claim 15.

In the case of vehicle seats with an easy entry function, it is provided that a backrest of the vehicle seat can be folded forwards in the direction of a seat surface of the vehicle seat to make it easier to get in and out of a vehicle, and at the same time allow longitudinal adjustment of the vehicle seat. The backrest is in principle pivotally mounted on a seat frame of the vehicle seat by means of a seat fitting, so that an inclination of the backrest can be set in a use position and the backrest can be folded forward from a use position. A locking device is regularly provided on such a seat fitting, via which the backrest is locked in the use position and via which the backrest can be released for folding forward in the direction of the seat surface. Such a locking device should be designed so that it holds the backrest in a defined position in relation to the seat surface even in the event of a crash and secures the backrest against unintentional folding forward.

In order to permit a longitudinal adjustment of the vehicle seat when the backrest is folded forward, the locking device is regularly coupled to a locking device for the longitudinal adjustment of the seat via a coupling mechanism. The seat frame can be locked in a longitudinal seat position via the locking device. As a result of the adjustment movement when the backrest is folded forward, an actuating force is transmitted to the locking device via the coupling mechanism in order to release the locking of the locking device. For example, the coupling mechanism has a driver element that acts on the locking device via a coupling element, such as a rotatably mounted actuation ring or a Bowden cable, so that after the locking device is released and when the backrest is folded forwards, the locking device also automatically locks over the locking device Longitudinal seat adjustment is released and the vehicle seat is adjustable in the longitudinal direction of the seat with the backrest folded forward, that is to say is usually displaceable along a longitudinal seat guide.

From the DE 20 2008 008 312 U1 A generic vehicle seat with an easy entry function and an associated seat fitting are known. Here, the essential components of a locking device are provided on an inside of the backrest fitting in order to lock the backrest in a use position in a crash-proof manner and can be folded forward if necessary, while the essential components of a coupling mechanism for coupling the locking device to a locking device for the seat longitudinal adjustment on the outside of the Seat fittings are arranged.

So the locking device of the DE 20 2008 008 312 U1 among other things, a pivotally mounted pawl, which is engaged in a crash-proof locking of the backrest in a position of use via a locking toothing with a locking element in the form of a locking disk. The pawl can be pivoted via an actuating element in the form of a friction thumb, so that the pawls and the locking disk are no longer in engagement with one another and the backrest can thus be folded forward. On the opposite outside of the seat fitting, there is, inter alia, a pivotably mounted driver element in the form of a pivoting lever, which is connected via a Bowden cable to a coupling element in the form of a turntable. This pivot lever is pivoted when pivoting the pawl to release the backrest about an axis of rotation that is different from the axis of rotation of the pawl. The swivel lever hereby transmits an adjusting force to the turntable via a Bowden cable acting on it, whereby the locking device of the longitudinal adjustment of the seat is released.

From the DE 10 2008 061 037 B3 A vehicle seat with an easy entry function and an associated seat fitting are also known, in which the essential components of a locking device and a coupling mechanism are arranged on different sides of the seat fitting. It is in the DE 10 2008 061 037 B3 proposed to form a pivotably mounted lever as a driver element of the coupling mechanism with two regions that can be changed relative to one another in terms of their position. A relative movement of sections of the lever with respect to one another is permitted, so that if the backrest is misaligned - for example if the backrest has been folded too far or excessively forward - the locking device is to be blocked and the backrest can no longer be folded back is.

In the case of the vehicle seats and seat fittings known from the cited prior art, there is, for example, the problem that the assembly of the vehicle seats and the seat fittings is relatively complex and the components which interact with one another Locking device and a coupling mechanism must be coordinated very precisely.

In addition, it is comparatively complex in the case of seat platforms in which different variants of seat fittings are to be used for vehicle seats of different types, if the same backrest, depending on the type of vehicle seat, either with a seat fitting with a locking device and with a coupling mechanism or with a seat fitting without a locking device and without a coupling mechanism to be provided on a seat frame.

For example, vehicle seats for a four- or five-door vehicle that do not have to have an easy entry function have so far been equipped with a seat fitting of a first variant, which does not require a locking device and coupling mechanism and is only designed and provided for the inclination adjustment of the backrest. On the basis of the same seat platform, vehicle seats for a two- or three-door vehicle with seat fittings for an easy entry function are also manufactured. It is regularly provided that the backrest-side fixation of the respective seat fitting takes place at different points on a backrest-side part of the backrest, depending on which variant of the backrest fitting is to be used. On a side backrest part (backrest side part) to be used for both variants, usually a side backrest spar, different areas must therefore be provided for the different variants of seat fittings and vehicle seats for fixing the respective seat fittings. Usually, these are welding points at which a fitting part or a backrest adapter of the respective seat fitting is welded to the backrest side part of the backrest.

From the DE 10 2008 008 935 B3 a fitting for a vehicle seat is known. The fitting has an adjustment fitting for adjusting the inclination of a backrest of the vehicle seat relative to a seat part of the vehicle seat, a free-pivoting unit for pivoting the backrest freely from at least one position of use into a freely pivoted position, which is triggered by means of a free-pivoting control element, a lower part of the fitting which is connected to the seat part is to be connected and which carries the adjustment fitting, a fitting upper part assigned to the free pivoting unit, which is to be connected to the backrest and which is locked in the position of use, and a locking pawl. The locking pawl is pivotally articulated on the upper fitting part and fixes the upper fitting part in the freely pivoted position of the backrest, the fixing pawl then being able to be opened at least by means of the free-pivoting control element and can also be opened by means of a longitudinal adjuster of the vehicle seat.

The present invention is therefore based on the object of further improving a vehicle seat and a seat fitting of the type mentioned and, in particular, of facilitating the assembly of vehicle seats which are to be produced optionally with different variants of seat fittings (with or without an easy entry function) ,

This object is achieved both with the vehicle seats according to claim 1 and with the assembly method of claim 12 and the seat fitting of claim 15.

• - einem in Längsrichtung verstellbaren Sitzgestell,
• - einer Feststellvorrichtung für die Sitzlängsverstellung, um das Sitzgestell in einer Sitzlängsposition zu arretieren,
• - einer über einen Sitzbeschlag schwenkbar an dem Sitzgestell gelagerten Rückenlehne, wobei über den Sitzbeschlag ein Vorklappen der Rückenlehne auf die Sitzfläche im Rahmen einer Easy-Entry-Funktion ermöglicht wird und über den vorzugsweise auch eine Neigung der Rückenlehne bezüglich einer Sitzfläche des Fahrzeugsitzes eingestellt werden kann,
• - einer Verriegelungsvorrichtung zum Arretieren der Rückenlehne in einer Gebrauchsposition, wobei die Verriegelungsvorrichtung ein vorzugsweise verschwenkbares Verriegelungselement und ein Sperrelement aufweist und das Verriegelungselement zum Arretieren der Rückenlehne mit dem Sperrelement - zum Beispiel über eine sperrende Rastverzahnung - in Eingriff steht und zum Vorklappen der Rückenlehne in Richtung einer Sitzfläche des Sitzgestells außer Eingriff mit dem Sperrelement bringbar ist, und
• - einem Koppelmechanismus zur Kopplung der Verriegelungsvorrichtung für die Rückenlehne mit der Feststellvorrichtung für die Sitzlängsverstellung, wobei der Koppelmechanismus wenigstens ein mit der Verriegelungsvorrichtung wirkverbundenes und vorzugsweise verschwenkbares Mitnehmerelement und ein mit der Feststellvorrichtung wirkverbundenes Koppelelement aufweist und das Mitnehmerelement beim Vorklappen der Rückenlehne auf das Koppelelement einwirken kann, so dass mit dem Vorklappen der Rückenlehne die Arretierung der Feststellvorrichtung gelöst wird und das Sitzgestell in Längsrichtung verstellbar ist (Easy-Entry-Funktion).

According to a first aspect of the present invention, a vehicle seat is proposed, with at least

• - a longitudinally adjustable seat frame,
• a locking device for the seat longitudinal adjustment in order to lock the seat frame in a seat longitudinal position,
• - A backrest pivotally mounted on the seat frame via a seat fitting, the seat fitting allowing the backrest to be folded forward onto the seat surface as part of an easy entry function and preferably also allowing the inclination of the backrest to be adjusted with respect to a seat surface of the vehicle seat .
• - A locking device for locking the backrest in a position of use, wherein the locking device has a preferably pivotable locking element and a locking element and the locking element for locking the backrest is in engagement with the locking element - for example via a locking locking toothing - and for folding forward the backrest in the direction a seat of the seat frame can be brought out of engagement with the locking element, and
• - A coupling mechanism for coupling the locking device for the backrest with the locking device for the longitudinal adjustment of the seat, wherein the coupling mechanism has at least one driver element that is operatively connected and preferably pivotable to the locking device and one coupling element that is operatively connected to the locking device and that the driver element can act on the coupling element when the backrest is folded forward , so that the locking of the locking device is released when the backrest is folded forward and the seat frame can be adjusted lengthways (easy entry function).

According to the invention, it is additionally provided here that the locking element of the locking device and the driver element of the coupling mechanism are arranged on one and the same fitting side of the seat fitting, so that the locking element and the driver element are thus both either in the area of an outside or in the area of an inside of the seat fitting and a side backrest part the backrest. The seat fitting is fixed to a backrest part of the backrest via an adapter or backrest adapter of the seat fitting on the backrest part, the locking element and the driver element being arranged on exactly one side of this backrest adapter.

By arranging the two elements of the locking device on the one hand and the coupling mechanism on the other hand on the same fitting side of the seat fitting, the seat fitting can be made significantly more compact and the assembly of a vehicle seat can be considerably simplified. Thus, the locking element and the driver element are only adjustably mounted on one fitting side, so that the other opposite fitting side is almost completely available for fixing to the backrest. It is preferred here to arrange the locking element and the driver element on an outside of the seat fitting and thus consequently in the region of an outside of one of two longitudinal backrest sides of the backrest, between which the backrest cushion is provided. On the inside of the seat fitting, which faces the opposite backrest side of the backrest, there is therefore a larger area available for fixing, in particular welding, to a backrest side part.

Consequently, on one side of this backrest adapter, the locking element and the driver element — as well as an actuating element that controls the release of the backrest and acts on the locking element — are adjustable, preferably pivotable. The opposite side of the backrest adapter is thus almost completely available for fixing to a backrest side part of the backrest.

By providing the essential components of the locking device and the coupling mechanism on the backrest adapter of the seat fitting and no longer - as is the case, for example, in FIG DE 20 2008 008 312 U1 - partly also on an opposite (inner) fitting side on the backrest side part of the backrest itself, no components of the locking device or the coupling mechanism have to be arranged adjustably on the backrest side part of the backrest. As a result, areas for welding to part of the seat fitting can be easily formed on the backrest side part of the backrest, both for a seat fitting of a first variant with a locking device and with a coupling mechanism and for a seat fitting of a second variant without a locking device and without a coupling mechanism for welding be used. Thus, for example, the same welding areas can be used on a backrest side part of the backrest, regardless of whether the vehicle seat is intended for a two- or three-door vehicle and is therefore to be equipped with an easy entry function, or whether the vehicle seat is for a four- or five-door vehicle and thus without an easy entry function is provided.

The locking element is coupled to the driver element in such a way that when the locking element is adjusted to release the backrest, the driver element is adjusted to a coupling position in which when the backrest is subsequently folded forward, the driver element can act on the coupling element to release the locking device via the locking device , In this case, the locking element and the driver element are preferably each pivotably mounted and coupled to one another such that when the locking element is pivoted by a user to release the backrest, the driver element is pivoted into its coupling position. It is only by pivoting the locking element to release the backrest that the driver element is consequently moved into a position in which it can act on the coupling element when the backrest is folded forward in order to actuate the locking device of the seat longitudinal adjustment and to release the locking of the seat frame in the longitudinal direction of the seat.

For example, the driver element is designed as a driver pawl and has a driver hook, via which the driver pawl engages in its coupling position with a coupling element in the form of an actuating ring when the backrest is folded forward. In this way, by folding the backrest forward and engaging between the driver pawl and the actuating ring, the actuating ring is rotated, the rotational movement of which - in a manner known per se - leads to actuation of the locking device for the longitudinal adjustment of the seat.

In the course of making the seat fitting, the associated locking device and the associated coupling mechanism as compact as possible, one exemplary embodiment provides that the locking element and the driver element can be pivoted about the same axis of rotation. The physical axis of rotation for the two Elements are defined here, for example, by a pin or bolt which is formed or fixed on an adapter on the backrest part.

The arrangement of the locking element and driver element along a common axis of rotation is preferably such that the locking element and the driver element are present alongside one another along the axis of rotation. Here, for example, the driver element is arranged in front of the locking element along the axis of rotation and in relation to a spatial direction pointing away from the backrest and extending transversely to the longitudinal direction of the seat. For example, the locking element is present between an adapter of the seat fitting on the backrest part and the driver element.

It is of course also possible that a pivotably mounted locking element and a coupled and likewise pivotably mounted driver element can be pivoted about different, but preferably parallel axes of rotation.

In a first embodiment variant, the locking element and the driver element are connected to one another in a rotationally fixed manner, so that a pivoting movement of the locking element, in particular for releasing the backrest, also directly leads to a synchronous rotational movement of the driver element by the same angle of rotation or pivoting.

In a second embodiment variant, the locking element and the driver element are at least slightly adjustable relative to one another, in particular pivotally mounted. A relative movement of the locking element to the driver element is possible in this way.

This can be advantageous for folding the backrest back from a folded position. For example, it can be provided that the backrest is locked in a folded position by the locking element, so that a passenger does not have to hold the backrest himself in the folded position when moving the vehicle seat. Such a comfort lock is usually only released again when the vehicle seat returns to its original longitudinal seat position that it had before the vehicle seat was folded forward and moved. However, if, for example, an obstacle or a corresponding load of luggage behind the vehicle seat prevents the vehicle seat from being able to return to its original longitudinal position, it must be provided that the backrest can still be folded back. For this purpose, it is provided that a user can act on the locking element via an actuating element of an actuating mechanism, so that the comfort locking is released even without the vehicle seat having returned to the original longitudinal seat position. By providing an at least slight adjustability of the locking element and the driver element in relation to one another in the second embodiment variant, the driver element does not necessarily have to be adjusted when the locking element is required for the manual unlocking of the comfort lock, or the driver element is at least not over the entire adjustment path of the locking element and thus at most to shift by a smaller pivot angle.

In a further development based on this, the pivotable driver element is at least one spring element, for. B. in the form of a leg spring, biased in a pivoting direction. In order to limit pivoting of the driver element in this pivoting direction, the locking element has a stop area. A pivoting of the driver element relative to the locking element in the one pivoting direction in which the driver element is prestressed is thus limited by the locking element in that the driver element cannot be (further) adjusted in this pivoting direction beyond the stop area. For this purpose, for example, the locking element and the driver element engage in one another via a pin-elongated hole pair, so that a maximum relative movement of the two elements to one another is limited via the elongated hole. In one exemplary embodiment, the spring-loaded driver element has the elongated hole, into which an engagement pin of a stop region of the locking element engages. A pivoting movement of the driver element is thus limited by the pin against the action of the spring element. A relative movement between the driving element and the locking element is only possible against the spring force acting on the driving element, and at most up to the (second) end of the elongated hole, which lies opposite the (first) end of the elongated hole, against which the pin rests in a use position of the backrest ,

The coupling position is preferably in the pivoting direction in which the driver element is preloaded, so that the driver element is automatically pressed or pulled into the coupling position via the spring element as soon as this is permitted by the pivoting of the locking element to release the backrest. The spring element provided for prestressing the driver element is preferably supported on the one hand on the driver element and on the other hand on a cover of the Seat fittings from. The spring element provided for prestressing the driver element is thus not supported against another movable element of the locking device or the coupling mechanism, but rather against a component of the seat fitting which is immovable relative to the backrest.

As already indicated above, in addition to a locking element and a driving element, a vehicle seat and a seat fitting according to the invention can in particular also have a comfort locking element with which the locking element comes into engagement for locking the backrest in a use position in a folded-back position of the backrest, around which Lock the backrest in its folded position. Likewise, an actuating element can be provided, by means of which the locking element can be acted upon in order to bring the locking element out of engagement with the locking element in order to fold the backrest forward.

In a possible embodiment variant, it is now provided not only to arrange the locking element and the driver element on a fitting side of the seat fitting, but also the actuating element and / or the comfort locking element. If all four of the above-mentioned elements are arranged on one side of the fitting, a one-sided fitting structure can be implemented, in which both a crash lock and a comfort lock as well as a (mechanical) control for the locking device of the longitudinal seat adjustment are located on the same side of the seat fitting.

In a possible embodiment variant, the locking element has not only a first engagement area for locking with the locking element in the use position of the backrest, but also a second engagement area which differs from the first engagement area and which is designed for locking with the comfort locking element in a folded-back position of the backrest and is provided. Different areas of a single locking element thus take over both the crash-proof locking of the backrest in a use position and the comfort locking in a folded-up easy-entry position of the backrest.

In one possible exemplary embodiment, a locking element forms a plurality of teeth for interlocking with a locking element in a first engagement area and a locking pin in a second engagement area, which can be engaged by the comfort locking element when the backrest is in a folded-forward position.

Building on a vehicle seat according to the invention in accordance with the first aspect of the present invention, a second aspect is the provision of a method for mounting a vehicle seat which can be installed in different configurations or types, in particular with or without an easy entry function.

At least two different variants of seat fittings can thus be mounted on such a vehicle seat within the scope of an assembly method according to the invention, a first (easy entry) seat fitting with locking device and coupling mechanism being provided and a further, second seat fitting without locking device and without coupling mechanism being provided. For example, one seat fitting can be provided for a version of the vehicle seat for a two- or three-door vehicle and the other version of the vehicle seat for a four- or five-door vehicle.

In the context of a method according to the invention, it is now provided that the backrest has a backrest side part, to which a part of the respective seat fitting is to be fixed, in particular welded, and that seat fitting is equipped with a locking device and a coupling mechanism with a locking element and a driver element which are arranged on one and the same fitting side of the seat fitting, namely on one side of a backrest adapter of the seat fitting, which is fixed to the backrest. In an assembly method according to the invention, it can then be ensured that a part of the respective seat fitting is always fixed to at least one matching specific area of the backrest side part - and in particular at the same point or at the same points on an inside or outside of the backrest side part, regardless of this, whether a locking device and a coupling mechanism and thus an easy entry function are provided or not.

Consequently, in an assembly method according to the invention, an easy-entry seat fitting with locking device and coupling mechanism is fixed via a fitting side on an inside or outside of the backrest side part to at least one area to which a (other) part of a seat fitting without an easy-entry function is also fixed would have no locking device and no coupling mechanism. In an assembly method according to the invention, identical regions of a backrest side part are thus used for fixing a seat fitting on the backrest, regardless of whether the respective seat fitting provides an easy entry function or not.

For example, in a vehicle seat of a first type (with an easy entry function) with a locking device and coupling mechanism, a certain area of a backrest side part is welded with an adapter of a seat fitting of a first variant, and in a vehicle seat of a second type without a locking device and coupling mechanism the same area of the backrest side part is welded with welded a fitting part of a seat fitting of a second variant. For example, in the case of a seat platform with at least two variants for four / five and two / three door vehicles, a backrest side part of a backrest which is of identical design for each type of vehicle seat can always be welded to a part of the seat fitting provided in each case at the same locations. The backrest side part and the associated seat fittings are thus coordinated with one another in such a way that, regardless of the respective variant of the seat fitting and the respective vehicle seat type, at least one matching area of the backrest side part is always used for welding to a seat fitting.

Of course, this does not exclude that at least one additional welding area or an additional welding point is provided on the backrest side part, on which only a specific variant of a backrest fitting is welded. For example, it can be provided that the same welds on an inside of the backrest side part are used to fix different variants of seat fittings with or without a locking device and coupling mechanism. In the case of one of the seat fittings, for example the easy entry seat fitting, the backrest-side adapter of the seat fitting is welded to the backrest side part outside of the identical welding points on at least one additional welding point on the inside of the backrest part. The adjustable components of the locking device and the coupling mechanism (in particular the locking element and the driver element) are arranged on this adapter. Here, for example, the seat fitting without easy entry function is welded directly to a fitting part at a first or several first welding points on the backrest side part, while the seat fitting with easy entry function and an additional backrest adapter plate is not only welded to the first welding point or the the first welding points is welded to the backrest side part, but additionally to at least one second welding point.

Based on the basic idea of the present invention, to make a seat fitting as compact and compact as possible and in particular to facilitate the assembly of a vehicle seat with an easy entry function, a seat fitting is provided according to another aspect of the present invention.

In the case of a seat fitting according to the invention, at least one locking device for locking the backrest in a use position and a coupling mechanism for coupling the locking device with a locking device for the longitudinal adjustment of the seat are provided as part of the seat fitting. The locking device also has a locking element and a locking element here, the locking element being in engagement with the locking element for locking the backrest and out of engagement with the locking element in order to fold the backrest toward a seat surface of a vehicle seat frame. The coupling mechanism comprises at least one driver element that is operatively connected to the locking device, and a coupling element, the coupling mechanism being designed such that when the seat fitting is installed as intended, the driver element can act on the coupling element when the backrest is folded forward, so that when the backrest is folded forward, the coupling element Locking the locking device is released and the seat frame is adjustable in the longitudinal direction. Parts of the locking device and / or the coupling mechanism (adjustable) are mounted via a backrest adapter of the seat fitting, which is to be fixed, in particular welded, to a backrest side part of the backrest.

According to the invention, it is provided in accordance with the first aspect of the present invention that the locking element and the driver element are arranged on one and the same side of the backrest adapter - and thus on one and the same fitting side of the seat fitting. The locking element and the driver element are arranged on one side of a backrest adapter of the seat fitting, which is fixed to the backrest.

With a seat fitting according to the invention, the advantages previously stated in connection with a vehicle seat according to the invention and an assembly method according to the invention explained above can be achieved. Accordingly, the advantages and features of a vehicle seat according to the invention and an assembly method according to the invention explained above and described below also apply to a seat fitting according to the invention and vice versa.

For example, a seat fitting according to the invention is an inventive one Vehicle seat can be manufactured. Likewise, an assembly method according to the invention can be carried out with a seat fitting according to the invention by using a seat fitting according to the invention with an easy entry function as one of two possible variants of different seat fittings for the assembly of vehicle seats of at least two different types.

Further advantages and features of the present invention will become clear in the following description of exemplary embodiments with reference to the figures.

• 1 ausschnittsweise ein Ausführungsbeispiel eines erfindungsgemäßen Fahrzeugsitzes mit Easy-Entry-Funktion und einem erfindungsgemäßen Sitzbeschlag, bei dem sowohl ein Verriegelungselement einer Verriegelungsvorrichtung und ein Koppelelement eines Koppelmechanismus als auch ein Betätigungselement zum Betätigen des Verriegelungselements auf ein und derselben Beschlagseite des Sitzbeschlags angeordnet sind;
• 2A-2D in mit der 1 übereinstimmender perspektivischer Ansicht unterschiedliche Stellungen der Verriegelungsvorrichtung und des Koppelmechanismus beim Vorklappen einer Rückenlehne des Fahrzeugsitzes;
• 3A-3C Darstellung unterschiedlicher Stellungen der Verriegelungsvorrichtung und des Koppelmechanismus beim Zurückklappen der Rückenlehne, wenn eine ursprüngliche Sitzlängsposition nicht wieder eingenommen wurde;
• 4A-4C ausschnittsweise ein Fahrzeugsitz ohne Easy-Entry-Funktion mit einem Sitzbeschlag einer ersten Variante in unterschiedlichen Ansichten;
• 5A-5C der Fahrzeugsitz der 1, 2A bis 2D und 3A bis 3C mit Easy-Entry-Funktion und mit dem Sitzbeschlag der anderen, zweiten Variante in unterschiedlichen Ansichten.

Show it:

• 1 Detail of an exemplary embodiment of a vehicle seat according to the invention with an easy entry function and a seat fitting according to the invention, in which both a locking element of a locking device and a coupling element of a coupling mechanism and an actuating element for actuating the locking element are arranged on one and the same fitting side of the seat fitting;
• 2A-2D in with the 1 corresponding perspective view different positions of the locking device and the coupling mechanism when folding a backrest of the vehicle seat;
• 3A-3C Representation of different positions of the locking device and the coupling mechanism when the backrest is folded back if an original longitudinal position of the seat has not been taken up again;
• 4A-4C sections of a vehicle seat without an easy entry function with a seat fitting of a first variant in different views;
• 5A-5C the vehicle seat of the 1 . 2A to 2D and 3A to 3C with easy entry function and with the seat fitting of the other, second variant in different views.

The 1 shows a section of an embodiment of a vehicle seat according to the invention, of which in particular the backrest pivotally mounted on a seat frame, not shown here R and a seat fitting B for connecting the backrest R are shown on the seat frame. About the seat fitting shown B can be in a use position of the backrest R an inclination of the backrest R can be adjusted to a seat of the vehicle seat. In addition, the seat fitting shown B a so-called easy entry function is provided in which the backrest makes it easier to get in and out of a vehicle R can be folded forward in the direction of the seat and the seat frame of the vehicle seat is displaceable in the longitudinal direction of the seat. The swivel axes around which the backrest fall R is adjustable in inclination and around which the backrest can be folded forward.

The seat fitting has been designed to provide the easy entry function B a locking device V on which the backrest is locked in a crash-proof position in use and the backrest R can release for folding towards the seat. The seat fitting B also has one from a driver element in the form of a driver pawl 2 and a coupling element in the form of an actuating ring 6 existing coupling mechanism, via which the locking device is coupled to a locking device, not shown here, for the longitudinal adjustment of the seat. The seat frame can be locked in a longitudinal seat position via the locking device, the seat frame being displaceable in the longitudinal direction via a longitudinal rail guide after the locking device has been released. Such a locking device can in particular have a memory device by means of which the vehicle seat automatically reverts to the original longitudinal seat position after the backrest has been folded forward and after the seat frame has been moved as part of an easy entry or exit, when the backrest R folded back and the seat frame is pushed back.

For fixing the seat fitting B on a seat part on which the seat cushion for the seat surface is arranged and relative to which the backrest about a pivot axis D1 the seat fitting is adjustable and pivotable in its inclination B an adapter on the seat part AS on. On this adapter, which is designed as an adapter plate here AS are non-rotatable parts of the fitting B for the inclination adjustment of the backrest R and in particular a locking element of the locking device V in the form of a lock washer 5 intended. This lock washer 5 has an area with a plurality of locking teeth on a portion of its radial peripheral surface 51 with which a locking element of the locking device V in the form of a pawl 1 in a use position of the backrest R engages around the backrest R to lock in a crash-proof manner relative to the seat part of the vehicle seat.

The pawl 1 is pivotable on an armrest-side adapter AL stored here in the form of an adapter plate. The backrest-side adapter AL is the backrest R assigned and via a weld on a backrest side part L the backrest R fixed. In which Backrest side part L which is the back of the backrest R defined, it can be, for example, a backrest beam. The backrest-side adapter AL here lies on an outside of the backrest side part L and is over the inside of the backrest part L welded to it, as will be explained in more detail below.

The one on the outside of the backrest-side adapter AL arranged pawl 1 has a bearing section 10 on which they can be pivoted about a pivot or rotation axis D3 on the adapter AL is stored. The pawl 1 also has two arms 13a . 13b on that over the storage section 10 are interconnected. A locking arm 13a has in particular a toothed first engagement area 15 on the pawl 1 with the ratchet teeth 51 the lock washer 5 - as in 1 shown - engages around the backrest R to lock in a position of use. A curved release arm 13b the pawl 1 extends finger-like from the bearing section 10 so that between the locking arm 13a and the release arm 13b a latch mouth is formed.

On the backrest-side adapter AL is also an actuating element in the form of a friction thumb 3 about a pivot axis D2 pivoted. The pivot axis D2 of the rubbing thumb 3 runs parallel to the swivel axis D3 the pawl 1 and parallel to the swivel axis D1 the backrest R , The rubbing thumb 3 is designed like a cam and on a bearing section 30 pivoted. Next to the storage section 30 shows the rubbing thumb 3 an actuation section in the form of a circular segment in plan view 31 on the inside of the between locking arm 13a and release arm 13b formed pawl mouth of the pawl 1 is recorded. Depending on the swivel position of the friction thumb 3 can this over its operating section 31 on the locking arm 13a or the release arm 13b act. In the 1 is the operating section 31 on the locking arm 13a and thus ensures the tooth engagement of the pawl 1 into the lock washer 5 ,

On the same fitting side as the pawl 1 is the driver pawl in the present case 2 of the coupling mechanism 2 . 6 of the seat fitting B arranged. The driver pawl 2 is also around the swivel or rotation axis D3 pivotable on the backrest-side adapter AL arranged. The driver pawl 2 viewed from the outside of the backrest, lies in front of the pawl 1 along the swivel axis D3 and is with the pawl 1 coupled so that the driver pawl 2 when the pawl pivots or rotates 1 about the axis of rotation D3 is adjusted in the same swivel or rotation direction.

In a variant not shown here, the pawl can 1 and the driver pawl 2 for this, be connected to one another in a rotationally fixed manner.

In the in the 1 The variant shown are the pawl 1 and the driver pawl 2 at least slightly pivotable relative to each other. The pawl is there 1 and the driver pawl 2 engaged with each other via a pin-elongated hole pairing, on the bearing section 10 the pawl 1 one parallel to the swivel axis D3 protruding engagement pin 12 is formed in an elongated hole 21 on a storage section 20 the driver pawl 2 intervenes. The engagement pin 12 the pawl 1 defines a stop area for the driver pawl 2 , over which the driver pawl 2 not relative to the pawl 1 can be pivoted. The driver pawl 2 is also preloaded in a pivoting direction (here clockwise) via a spring element, not shown, preferably in the form of a leg spring. The spring element is supported on the driver pawl with a first spring arm 2 and with another spring arm on a backrest-fixed cover 7 (see 5A) off to the catch 2 pretension. The driver pawl is above the spring element 2 thus against the engagement pin 12 the pawl 1 biased in a swivel direction (here clockwise). Through the pin-slot combination between the pawl 1 and driver pawl 2 and the spring catch of the driver pawl 2 becomes the catch 2 automatically adjusted in the preloaded swivel direction when the pawl 1 and thus the engagement pin 12 is shifted. At the same time, a relative movement of the pawl is via the pin-slot combination 1 to the driver pawl 2 allowed, the relative movement mainly due to the dimensions of the slot 21 is limited.

At the driver pawl 2 is a catch hook 26 trained who when loosening the pawl 1 and the lock washer 5 provided locking and folding the backrest forward R towards the seat on a latch counter surface 62 (see 2 B) of the actuation ring 6 can attack. The actuation ring 6 is on the seat part adapter AS about the pivot axis D1 pivoted and is connected to the locking device for the seat adjustment. By attacking the driver pawl 2 over their catch hook 26 on the actuation ring 6 it becomes when the backrest is folded forward R about the pivot axis D1 rotated, whereby the locking device for the seat longitudinal adjustment is actuated to release its locking.

On the seat part adapter AS is also a comfort locking element 4 arranged pivotable. With this comfort locking element 4 the pawl arrives 1 in a folded position of the backrest (cf. 2C and 2D ) engaged around the backrest R to lock in the folded position. The pawl 1 points to this on her locking arm 13a an additional, second engagement area with a locking pin 14 on. This locking pin 14 is at a front end of the locking arm 13a provided and can be in a folded position of the backrest R in which the pawl 1 with their locking arm 13a down to the comfort locking element 4 was introduced by the comfort locking element 4 be attacked. The locking pin 14 the pawl 1 on the comfort locking element 4 over a locking area 44 of the comfort locking element 4 attacked (compare 5C ) around the backrest R to lock in their folded easy entry position.

A folding backrest R from the pre-folded position locked in this way is only possible again when the pawl 1 and the comfort locking element 4 be disengaged from each other. This is the comfort locking element 4 coupled with the locking device for seat longitudinal adjustment, so that the comfort locking element 4 the locking pin 14 the pawl 1 automatically releases again as soon as the seat frame of the vehicle seat reaches an original longitudinal position again, which the seat frame has before the backrest is folded forward R and moving the seat frame forward.

Likewise, a possibility is provided in the present case by actuating the friction thumb 3 the pawl 1 out of engagement with the comfort locking element 4 to bring, even if the original seat longitudinal position has not been resumed. This is the locking area 44 of the comfort locking element 4 designed so that the locking pin 14 also by a (overstroke) pivoting movement of the pawl 1 in the release direction out of engagement with the locking area 44 brought and can be moved along this. Like the easy entry function of the vehicle seat shown or the seat fitting shown, this is intended B with view on 2A to 2D and 3A to 3C to be explained in more detail.

With the 2A to 2D different successive phases in folding the backrest forward R and the resultant release of the longitudinal adjustment of the seat.

To lock the backrest R to release and the backrest R to pivot freely relative to the seat part of the vehicle seat and to be able to fold it forwards in the direction of the seat surface, an actuation mechanism is actuated, for example, by a vehicle occupant, for which, among other things, the friction thumb 3 heard. For example, an operating handle on the side or in the upper area of the backrest L operated with the rubbing thumb 3 is connected and to a rotation of the friction thumb 3 about its pivot axis D2 (here counterclockwise) leads. This actuation section lies due to this rotation of the friction thumb 31 of the rubbing thumb 3 no longer on the locking arm 13a and comes into contact with the release arm 13b the pawl 1 ,

Through the force application of the friction thumb 3 on the release arm 13b becomes the pawl 1 in a direction of rotation of the friction thumb 3 opposite pivot direction about its pivot axis D3 pivoted. This causes the pawl to come out 1 out of engagement with the lock washer 5 , With the pivoting movement of the pawl 1 is due to the resilience of the driver pawl 2 an almost synchronous pivoting movement of the driver pawl 2 in the same swivel direction (clockwise) around the common swivel axis D3 triggered. This takes the driver pawl 2 a coupling position on the backrest-fixed adapter AL on. The driver hook engages in this coupling position 26 the driver pawl 2 when folding the backrest forward R towards the seat on the latch counter surface 62 of the actuation ring 6 on the fixed adapter AS is rotatably mounted and is operatively connected to the locking device for the seat longitudinal adjustment. This is particularly true in the 2 B illustrated.

When the backrest, which is now no longer locked, is folded forward R becomes the locking arm 13a the pawl 1 on a toothless, radial outer surface 50 the lock washer 5 led along until the backrest R occupies a maximum possible folded position. This maximum folded position is in the 2C shown. Here is by the rotation of the actuation ring 6 due to the driving pawl attacking it 2 the lock is released via the locking device of the longitudinal seat adjustment, so that the seat frame of the vehicle seat can be moved forwards in the longitudinal direction to make it easier for rear passengers to get in or out of the vehicle.

In the maximum folded position of the backrest R is also the locking pin 14 the pawl 1 partly on the comfort locking element on the seat part side 4 passed by so that the locking pin 14 through a Swiveling the comfort locking element 4 around an adapter on the seat part AS intended pivot axis D4 can be attacked. This is in the 2D shown.

Here is the backrest R based on the position of use of the 2A Folded forward by a maximum pre-folding angle of, for example, approx. 40 to 50 °, and a lock on the locking device of the longitudinal seat adjustment is completely released. By the pawl 1 with her locking pin 14 with the comfort locking element 4 has engaged, is the backrest R also locked in their folded position so that the backrest R does not have to be held manually in the folded position when the seat frame is moved.

The backrest R is via the comfort locking element 4 held in its maximum folded position until the seat frame returns to the original longitudinal position. The comfort locking element 4 For this purpose, it is coupled to the locking device of the seat longitudinal adjustment in such a way that when the seat frame is pushed back and when the seat longitudinal position originally assumed is reached, the comfort locking element 4 about its pivot axis D4 (here counterclockwise) and only then the pawl 1 releases again.

To allow the backrest to fold back R It is also possible if the original longitudinal seat position cannot be taken up again, the locking device V In the present case designed so that over the rubbing thumb 3 on the pawl 1 can be acted on the locking pin 14 out of engagement with the comfort locking element 4 bring to. It may happen that the vehicle seat cannot be pushed back into the original longitudinal position due to an obstacle, but nevertheless the backrest R to be folded back. This can be done using the rubbing thumb 3 in the folded position of the backrest R on the release arm 13b the pawl 1 be acted on the locking pin 14 in the overstroke from the lock with the comfort locking element 4 to lift. The pawl 1 is pivoted by an overstroke swivel angle in the (release) swivel direction, in which the pawl is also swiveled 1 to release the lock with the locking disc 5 and thus to release the backrest R he follows. This is in the 3A illustrated in more detail.

The locking pin 14 is here about the comfort locking element still in the locking position 4 raised so that the locking pin 14 no longer engaged with the comfort locking element 4 stands and when the backrest is folded back R on a guide surface 41 the comfort locking element is guided along ( 3B) ,

In the course of the over-stroke movement of the pawl 1 for releasing the lock with the comfort locking element 4 If necessary, the driver pawl coupled with it 2 pivoted. By the pawl 1 via the pin-elongated hole pairing relative to the driver pawl 2 is pivotable, the pawl 1 in the overstroke movement, however, initially by one over the dimensions of the elongated hole 21 predetermined adjustment path can be pivoted without the spring-loaded driver pawl 2 is also relocated. Although this is not absolutely necessary, it minimizes the friction and thus the adjustment force to be applied to release the comfort lock. Reaches the backrest R according to the 3C back into its position of use, the pawl locks 1 again automatically with the locking disc 5 and is in the locking position thus taken over that on the locking arm 13a attacking rubbing thumb 3 secured.

By arranging the pawl 1 , Driving pawl 2 , Rubbing thumb 3 and comfort locking element 4 only on the outside of the backrest R and on a fitting side of the seat fitting B becomes an extremely compact seat fitting B created the assembly of the seat fitting B and the vehicle seat considerably easier. In addition, by designing different engagement areas on the pawl 1 on the one hand, for the crash lock with the locking washer 5 and on the other hand for comfort locking with the comfort locking element 4 trained and intended, only the direct movement of the pawl 1 a direct influence on the easy entry functions. A tolerance-related dependency between crash locking and swiveling the backrest free R as well as the comfort lock is significantly minimized.

The illustrated one-sided fitting structure also offers the advantage that an inside of the backrest-side adapter AL , the backrest adapter plate, completely for fixing to the backrest side part L is available. So are on the outside of the adapter AL the pawl 1 who have favourited Pawl 2 and the rubbing thumb 3 pivoted. The interacting and on the seat fitting B adjustable components of an actuating mechanism, the locking device V and the coupling mechanism 2 . 6 are therefore completely on the outside of a backrest. Such must on the inside of the backrest of the backrest part L no components the locking device V or the coupling mechanism 2 . 6 to be ordered.

This offers the advantage of being on the inside of the backrest side part L the backrest R matching areas can be used to fix a seat fitting, regardless of whether a vehicle seat should be equipped with an easy entry function or not. For example, the seat fitting B the 1 . 2A - 2 B and 3A - 3C via its backrest-side adapter AL on the same welding areas with a backrest part L be welded, to which a seat fitting would also be welded, which only allows the backrest to be tilted and does not provide an easy entry function. In an assembly process in which vehicle seats of a seat platform are to be manufactured in different types, for example for two- or three-door vehicles with an easy entry function on the one hand and for four- or five-door vehicles without an easy entry function on the other hand, matching welding areas can occur an inside of the backrest side part can be used for welding to the respective seat fitting. This is explained in the following 4A to 4C and 5A to 5C illustrated in more detail.

The 4A . 4B and 4C show a perspective view with a view of the outside of the backrest, a sectional view and a perspective view with a view of the inside of the backrest, a section of a vehicle seat of a first type with a first variant of a seat fitting B * , where no easy entry function is provided. Consequently, the vehicle seat or the seat fitting points here B * no locking device V and no coupling mechanism 2 . 6 to the locking device for seat longitudinal adjustment. Rather, the seat fitting serves B * only the angle of the backrest R in a position of use relative to a seat part, also not shown here, with the seat surface of the vehicle seat. It is merely an adapter configured as an adapter plate AS * of the seat fitting B * provided that is to be fixed to the seat part of the vehicle seat, and no second adapter on the backrest part.

The seat fitting B * has two fittings in a known manner for adjusting the inclination B1 and B2 on, each of the backrest R or are assigned to the seat part. Here is the one fitting part B2 the backrest R assigned and directly with the backrest side part L welded. The fitting part B2 thus forms that part of the seat fitting B * , via the armrest fixation of the fitting B * he follows. For this are on the inside of the backrest part L multiple welds S1 in the area of a fitting opening of the backrest side part L provided on which the fitting part attached from the outside B2 for example by means of laser welding on the backrest side part L is welded on.

Both 5A . 5B and 5C is also in perspective view with a view of the outside of the backrest, in a sectional view and in perspective view with a view of the inside of the backrest, the embodiment of the previously explained 1 . 2A to 2D and 3A to 3C with a vehicle seat with easy entry function and the seat fitting B shown. Due to the one-sided fitting structure of the seat fitting B and thus the lack of necessity on the inside of the backrest side part L Locking device components V or the coupling mechanism 2 . 6 can be provided on the backrest side part L the same welds S1 for fixing the seat fitting B can be used as for fixing the seat fitting B * the 4A to 4C without easy entry function.

On the inside of the backrest part L there are additional welds S21 and S22 provided on which a weld with the backrest-side adapter AL of the easy entry seat fitting B he follows. These welds S21 and S22 stay with a seat fitting B * without easy entry function for a vehicle seat for a four- or five-door vehicle unused.

For the assembly of vehicle seats of different types - for example for two- or three-door vehicles on the one hand and four- or five-door vehicles on the other hand - the same welds can be made S1 for fixing the respective seat fitting B or B * be used. With a seat fitting B * For a vehicle seat without an easy entry function, there is also no need to use an adapter on the back part, for example in the form of a backrest adapter plate. This is otherwise normally necessary if there are no matching (welding) areas for the different types of vehicle seats to be fitted for fixing different seat fittings to the backrest side part L can be used.

LIST OF REFERENCE NUMBERS

1

Pawl (locking element)

10

bearing section

12

Engagement pin (stop area)

13a

lock

13b

release arm

14

locking pin

15

1. Area of intervention

2

Driver pawl (driver element)

20

bearing section

21

Long hole

26

driving hook

3

Friction thumb (actuating element)

30

bearing section

31

actuating section

4

Comfort locking element

41

guide surface

44

locking area

5

Locking disc (locking element)

50

lateral surface

51

ratchets

6

Actuating ring (coupling element)

62

Pawl counter surface

7

cover

AL

Adapter (backrest side)

AS, AS *

Adapter (seat part side)

B, B *

seat fitting

B1, B2

fitting part

D1, D2, D3, D4

Rotation / swivel axis

L

Backrest side part

R

backrest

S1, S21, S22

weld

V

locking device

Claims (15)

Vehicle seat, with at least - a longitudinally adjustable seat frame, - a locking device for longitudinal seat adjustment to lock the seat frame in a longitudinal seat position, - a backrest (R) mounted on the seat frame so that it can pivot about a pivot axis (D1) via a seat fitting (B) , - A locking device (V) for locking the backrest (R) in a use position, the locking device (V) having a locking element (1) and a locking element (5) and the locking element (1) for locking the backrest (R) with the locking element (5) is engaged and can be brought out of engagement with the locking element (5) for folding the backrest (R) in the direction of a seat surface of the seat frame, and - a coupling mechanism (2, 6) for coupling the locking device (V) for the backrest (R) with the locking device for the longitudinal adjustment of the seat, the coupling mechanism (2, 6) at least has a driver element (2), which is operatively connected to the locking device (V), and a coupling element (6), which is operatively connected to the locking device, and the driver element (2) can act on the coupling element (6) when the backrest (R) is folded forward, so that the folding forward the backrest (R) the locking of the locking device is released and the seat frame is adjustable in the longitudinal direction, characterized in that the locking element (1) and the driving element (2) are arranged on one and the same fitting side of the seat fitting (B), which is either a Defines the inside or one of the outside of the seat fitting (B) opposite the inside in the direction of the pivot axis (D1) of the backrest (R), the locking element (1) and the driver element (2) on one side of a backrest adapter (AL) of the seat fitting (B ) are arranged, which is fixed to the backrest (R). Vehicle seat after Claim 1 , characterized in that the locking element (1) and the driver element (2) are arranged on an outside of the seat fitting (B). Vehicle seat after Claim 1 or 2 , characterized in that the locking element (1) is coupled to the driver element (2) in such a way that when the locking element (1) is adjusted to release the backrest (R), the driver element (2) is adjusted to a coupling position in which when the backrest (R) is folded forward, the driver element (2) can act on the coupling element (6). Vehicle seat according to one of the preceding claims, characterized in that the locking element (1) and the driver element (2) are pivotable. Vehicle seat according to one of the preceding claims, characterized in that the driver element (2) is arranged next to the locking element (1) with respect to its axis of rotation (D3). Vehicle seat according to one of the preceding claims, characterized in that the locking element (1) and Driver element (2) are at least slightly adjustable relative to each other. Vehicle seat after Claim 6 , characterized in that the pivotable driver element (2) is preloaded in at least one spring element in a pivoting direction and the locking element (1) has a stop region (12) which limits pivoting of the driver element (2) in this pivoting direction. Vehicle seat according to one of the preceding claims, characterized in that a comfort locking element (4) is provided, with which the locking element (1) engages in a folded position of the backrest (R), around the backrest (R) in the folded position Lock position. Vehicle seat after Claim 8 , characterized in that the locking element (1) has a first engagement area (15) for locking with the locking element (5) in the use position of the backrest (R) and a different second engagement area for locking with the comfort locking element (4) in one has the folded position of the backrest (R). Vehicle seat according to one of the preceding claims, characterized in that the locking device (V) has an actuating element (3), via which the locking element (1) can be acted upon in order to disengage the locking element (1) from the locking element (5) bring and fold the backrest (R) towards the seat. Vehicle seat according to one of the Claims 8 . 9 or 10 , characterized in that the locking element (1), the driver element (2) and the actuating element (3) and / or the comfort locking element (4) are arranged on the same fitting side. Method for assembling a vehicle seat which has at least one longitudinally adjustable seat frame and a backrest (R) pivotably mounted on the seat frame via a seat fitting (B, B *) and which with or without different variants of seat fittings (B, B *) Locking device (V) and coupling mechanism (2, 6) can be mounted, wherein - by means of the locking device (V) the backrest (R) can be locked in a position of use by a locking element (1) of the locking device (V) with a locking element (5) the locking device (V) is engaged, and the locking device (V) enables the backrest (R) to be folded forward towards a seat surface of the seat frame by disengaging the locking element (1) from the locking element (5), by means of the coupling mechanism (2, 6) the locking device (V) for the backrest (R) with a locking device f r the longitudinal adjustment of the seat can be coupled and the coupling mechanism (2, 6) for this purpose has at least one driver element (2) that is operatively connected to the locking device (V) and one coupling element (6) that is operatively connected to the locking device, so that the driver element (2) when the backrest is folded forward (R) can act on the coupling element (6) and the locking of the locking device is released when the backrest (R) is folded forward, - at least one seat fitting (B) with locking device (V) and coupling mechanism (2, 6) and a seat fitting ( B *) are provided without a locking device (V) and coupling mechanism (2, 6) with which the vehicle seat can be optionally mounted, and - the backrest has a backrest side part (L) on which a part (AL, B2) of the respective seat fitting ( B, B *) is to be fixed, characterized in that - a seat fitting (B) with a locking device (V) and a coupling mechanism (2, 6) is provided Is ellt, in which the locking element (1) and the driver element (2) are arranged on one and the same fitting side of the seat fitting (B), namely on one side of a backrest adapter (AL) of the seat fitting (B), which on the backrest ( R) is fixed, and - a part (AL, B2) of the respective seat fitting (B, B *) is always fixed to a certain area of the backrest side part (L), regardless of whether a locking device (V) and a coupling mechanism (2nd , 6) are provided or not. Procedure according to Claim 12 , characterized in that in a vehicle seat of a first type with locking device (V) and coupling mechanism (2, 6) a certain area of the backrest side part (L) is welded with an adapter of a seat fitting (B) of a first variant and in a vehicle seat of a second one Type without locking device (V) and coupling mechanism (2, 6) the same area of the backrest side part (L) is welded to a fitting part (B2) of a seat fitting (B *) of a second variant. Procedure according to Claim 12 or 13 , characterized in that the same welding points (S1) on an inside of the backrest side part (L) are used to fix different variants of seat fittings (B, B *) with or without locking device (V) and coupling mechanism (2, 6). Seat fitting (B) for a vehicle seat with a longitudinally adjustable seat frame and a backrest (R) which can be folded forward in the direction of a seat surface of the vehicle seat about a pivot axis (D1), the seat fitting (B) being designed and intended to lock the backrest (R) in a position of use relative to the seat surface and folding the backrest forwards (R), and at least the following comprises: - a locking device (V) for locking the backrest (R) in a use position, the locking device (V) having a locking element (1) and a locking element (5) and the locking element (1) for locking the backrest (R) in engagement with the locking element (5) and for folding the backrest (R) towards a seat of the seat frame out of engagement with the locking element (5), - a coupling mechanism (2, 6) for coupling the locking device (V) for the backrest (R) with a locking device for the seat longitudinal adjustment, the coupling The mechanism (2, 6) has at least one driver element (2) operatively connected to the locking device (V) and a coupling element (6) and the driver element (2) can act on the coupling element (6) when the backrest (R) is folded forward, so that when the backrest (R) is folded forwards via the coupling element (6), the locking device of the locking device is released and the seat frame is adjustable in the longitudinal direction, and - a backrest adapter (AL), which is to be fixed to a backrest side part (L) of the backrest (R) and on which parts of the locking device (V) and / or the coupling mechanism (2, 6) are mounted, characterized in that the locking element (1) and the driver element (2) are arranged on one and the same side of the backrest adapter (AL) which, when the seat fitting (B) is arranged as intended on a vehicle seat, either an inside or one of the inside in the direction of the pivot axis (D1) of the backrest (R) opposite The outside of the backrest adapter (AL) is defined, the locking element (1) and the driving element (2) are arranged on one side of a backrest adapter (AL) of the seat fitting (B), which is fixed to the backrest (R).

Images