DE102011120532A1 - Unlocking system for unlocking folding mechanism of e.g. front seat of vehicles, has unlocking units for unlocking folding mechanism of vehicle seat, and actuator units for actuating unlocking units - Google Patents

Abstract

The system (1) has unlocking units (2) for unlocking a folding mechanism of a vehicle seat (10), and actuator units (3a) for actuating the unlocking units. The actuator units are spaced from each other. Coupling units (4a) i.e. pulling elements such as Bowden cables, couple the unlocking units with the actuator units, respectively. One of the coupling units comprises input units i.e. tension compensators. One of the actuator units is fastened in a loading space (22) stationarily on an outer wall. One of the unlocking units is arranged at a seat part (12) with a trigger element (2a). The actuator units are designed as manually actuatable, electrical, mechatronic and/or electronic actuator units e.g. hand levers, pulling element and/or operation knobs. Independent claims are also included for the following: (1) a vehicle seat (2) a method for unlocking a folding mechanism of a vehicle seat.

Description

The invention relates to a release system for a seat according to the preamble of claim 1.

Furthermore, the invention relates to a vehicle seat according to the preamble of claim 5.

The invention also relates to a vehicle according to the preamble of claim 6.

In addition, the invention relates to a method for unlocking a seat according to the preamble of claim 8.

Unlocking systems for vehicle seats for unlocking a folding mechanism of the vehicle seat, in particular for folding a seat back, are well known. To trigger or actuate the unlocking system, an actuating unit is conventionally formed, which is arranged in the immediate vicinity of and / or adjacent to the unlocking system or in this integrated. For example, the actuating unit is designed as a lever which is attached directly to the unlocking unit. The unlocking of the seat back is thus possible only from the immediate vicinity of the seat back, that is, when a user is in the immediate range of the vehicle seat.

It is therefore an object of the present invention to provide a seat release system which provides more flexible operation. In particular, it is an object of the present invention to provide a vehicle seat and a vehicle, and a method therefor.

These and other objects are achieved on the basis of an unlocking system according to claim 1, a vehicle seat according to claim 5, a vehicle according to claim 6 and a method according to claim 8 in conjunction with their features. Advantageous developments of the invention are specified in the dependent claims.

The invention includes the technical teaching that in an unlocking system for a seat, in particular for unlocking a folding mechanism of a vehicle seat, comprising at least one unlocking device for unlocking the folding mechanism of the vehicle seat and at least one first actuating unit for actuating the at least one unlocking device is provided that at least one further actuating unit for further, alternative and / or additional actuation of the at least one unlocking device is formed. With such a release system advantageously a flexible use or a flexible release of the folding mechanism of the vehicle seat is possible. The flexibility is achieved here, especially with regard to the location, since the unlocking system can be triggered via the further actuating unit from a further location. With the unlocking system according to the invention, especially a seat remote release from a distance, for example from a loading space of a vehicle out or from outside the vehicle, that is without direct contact with the unlocking possible. In other words, the unlocking system or the unlocking device can be remotely controlled or remotely triggered. The distance between the first actuating unit and the second actuating unit is, in one embodiment, a few millimeters or centimeters. In preferred embodiments, the distance between two actuator units is several centimeters to several meters.

The unlocking system comprises at least one unlocking device for unlocking the folding mechanism of the vehicle seat. In one embodiment, exactly one unlocking device is formed, in others Embodiments are more than one, for example, two or three, unlocking devices formed. For example, one unlocking device per vehicle seat and / or per vehicle seat row is provided. Several unlocking devices are triggered, for example, individually and / or coupled. The unlocking device is arranged in a preferred embodiment directly to a vehicle seat or a row of seats. For example, the unlocking device is integrated in a vehicle seat. In one embodiment, the folding mechanism of all vehicle seats in a seat row or rows of seats can be triggered with a single unlocking device. In another embodiment, the folding mechanism of a single vehicle seat can be triggered with an unlocking device. The unlocking device is integrally formed in one embodiment. In other embodiments, the unlocking device is designed in several parts. In one embodiment, the unlocking device comprises a triggering element which triggers and / or releases the seatback when the folding mechanism is triggered. The trigger element is triggered by the actuator unit. The triggering element is designed for example as a tension element such as a cable pull, in particular a Bowden cable, and / or a lever or switch.

Furthermore, the unlocking system comprises at least one first actuating unit for actuating the at least one unlocking device. In one embodiment, exactly one first actuating unit is formed; in other embodiments, more than one, for example two or three, first actuating units are formed. Advantageously, a first actuating unit is provided per unlocking device. The first actuation unit is designed, for example, as a manually operable, electrical, mechatronic and / or electronic actuation unit, preferably as a hand lever and / or actuation knob. Advantageously, the first actuating unit is arranged stationary, alternatively, the first actuating unit is variably or adjustably arranged, for example pivotable and / or displaceable. In a preferred embodiment, the first actuating unit is formed stationary directly on the unlocking device. In other embodiments, the first operating unit is coupled to other components, such as an ignition lock, a seat sensor, an access key, a cargo compartment door, a motor sensor or external components such as garage door sensors, front door sensors or the like.

According to the invention, the unlocking system comprises at least one further actuating unit for actuating the at least one unlocking device. In one embodiment, exactly one further actuating unit is formed; in other embodiments, more than one, for example two or three, further actuating units are formed. For the further actuating unit, the same applies in principle to that given above for the first actuating unit, unless otherwise described. Advantageously, a further, in other embodiments a plurality of further actuating unit is provided per unlocking device and / or per first actuating unit. In one embodiment, the further actuating unit is arranged stationary. Other embodiments provide a variable or adjustably arranged and / or non-fixed, freely movable further actuator unit. With an adjustably arranged further actuating unit, the flexibility in use is advantageously further increased. The further actuation unit is designed, for example, as a manually operable, electronic, mechatronic, radio-controlled and / or electrical actuation unit, preferably as a tension element and / or actuation button, in particular a push button.

The further actuating unit is designed in an embodiment equal to the first actuating unit. In other embodiments, the further actuating unit is designed differently from the first actuating unit. The first actuating units and the further actuating units may also be designed differently from one another. For example, the actuators have a fuse to protect against inadvertent or unwanted operation. The fuse is formed in one embodiment as a child safety. One embodiment provides a coupling of the two actuator units. For example, the actuation units are connected to one another in parallel or in series with coupling or switching. Preferably, both actuation units are active and thus operable until one of the two actuation units is actuated.

The actuators are lockable in one embodiment. For example, the actuation units are coupled to a sensor which transmits a corresponding signal to the actuation unit. Depending on the signal, the operating unit is locked or released. For example, a seat sensor detects whether a person or the like is on the vehicle seat. Accordingly, the sensor sends a signal to the actuator unit. If this actuator is now operated, there is no unlocking, as the person could be injured. In other embodiments, the sensor is designed as a keycard, a dart or the like. Further embodiments provide for automatic blocking of the actuating units, for example during a journey.

A preferred embodiment of the unlocking system provides that the at least one first actuating unit and the at least one further actuating unit are spaced apart from one another and / or formed separately. Preferably, the second actuator unit is spaced from the first actuator unit to allow remote actuation of the folding mechanism by means of the second actuator unit. The distance between the second actuating unit and the unlocking device allows the flexible use of the unlocking system. In one embodiment, the first and further actuator units are spaced a few centimeters apart. Other embodiments provide a distance of up to several meters between the actuators.

In one embodiment, it is provided that at least one first coupling unit is provided for coupling the at least one unlocking device to the at least one first actuating unit and at least one further coupling unit for coupling the at least one unlocking device and / or the first actuating unit to the at least one further actuating unit. In one embodiment, in each case a first or a second coupling unit is formed, in other embodiments, more than one, for example two or three, first and / or second coupling units are formed. Advantageously, a coupling unit is provided per actuating unit.

One embodiment provides a first coupling unit for coupling the unlocking device to the first actuating unit. In another embodiment, a second coupling unit is provided for coupling the unlocking device with the further actuating unit and / or the first actuating unit. In a further embodiment, the second coupling unit couples the further actuating unit with the first actuating unit and the unlocking device in order to realize a serial connection of the actuating units. One embodiment provides for a parallel connection of the actuating units with the unlocking device, for example in that each actuating unit is separately coupled to the unlocking device. The coupling by means of the coupling elements is designed, for example, mechanically and / or electrically. For example, the coupling is wired, non-wired and / or radio-controlled. The coupling units are designed, for example, uniformly or differently. Preferably, the first coupling unit with the first actuating unit and / or the unlocking device is designed to be integrated. Further preferably, the second coupling unit is designed separately from the further actuating unit and / or the unlocking device. In particular, the embodiments of the coupling units differ with respect to the distance to be bridged during the coupling from the respective actuating unit to the unlocking device. Advantageously, the second coupling unit is formed longer than the first coupling unit, since the distance of the second actuating unit to the unlocking unit is greater than the distance of the first actuating unit. In a preferred embodiment, at least the second coupling unit is designed as a tension element such as a cable pull, in particular a Bowden cable. Advantageously, both coupling units are designed as tension elements, in particular as Bowden cables.

In another embodiment, it is provided that the at least one second coupling unit has a compensation unit. Advantageously, the compensation unit serves to compensate for a force, an angular offset, a deflection and the like between the two actuating units and the unlocking device. The further actuating unit is preferably arranged at a distance from the unlocking device. Consequently, the second coupling unit has a longer transmission path to the unlocking device. In a mechanical embodiment of the second coupling unit, in particular as a tension element, the compensation unit advantageously optimizes a tensile force to be applied for actuation. The compensation unit is designed accordingly as Zugkraftkompensator. In another embodiment, the compensation unit compensates for a distance between the unlocking device and the second actuating unit in comparison to the length of the triggering element. This is advantageous in particular in one embodiment of the triggering element and the second coupling unit as a cable pull element. The compensation unit then advantageously compensates or optimizes a tensile force of the cable pull elements. In yet another embodiment, the compensating element comprises a winding shaft around which a wire is wound. The winding shaft is coupled to a spring unit. The winding shaft and the wound wire are formed, for example, in the manner of a Gurtwicklers. If the operating unit is removed from the unlocking device and actuated, the wire is wound off, so that a length compensation takes place. In an approximately the actuator to the unlocking the wire wraps, so that the example wire is always optimally stretched.

Further, the invention includes the technical teaching that in a vehicle seat, at least comprising a seat part, a hinged, in particular relative to the seat part hinged, seat back and at least one folding mechanism with an unlocking for folding the seat back, is provided that the unlocking as above described unlocking system is formed. The unlocking system is preferably used for unlocking a folding mechanism one and / or more seat backs for folding in the direction of the seat parts. In a vehicle seat with such a release system, the folding mechanism is advantageously remotely controlled, that is spaced apart, triggered. The flexibility is greatly increased compared to a conventional vehicle seat with only one operating unit arranged directly on the unlocking device. In one embodiment, an unlocking system is provided per vehicle seat, alternatively, an unlocking system for a plurality of vehicle seats, for example, for a row of seats, provided. The vehicle seats are designed as front seats and / or rear seats or rear seats.

Also, the invention includes the technical teaching that is provided in a vehicle comprising at least one seat device, that the at least one seat device is designed as a vehicle seat described above. The vehicle g is designed, for example, as a sedan, station wagon, off-road vehicle, minibus or the like. In this case, the vehicle comprises at least one vehicle seat and / or a row of seats with a release system. Advantageously, a rear seat row, for example a rear seat, is equipped with a release system.

In one embodiment, it is provided that the at least one second actuating unit for unlocking the folding mechanism of the vehicle seat is arranged in a loading space of the vehicle. Advantageously, the second actuating unit is remote from the unlocking device or spaced apart in the vehicle to ensure remote release of the folding mechanism. Preferably, the second actuating unit is arranged in the loading space of the vehicle. In this case, the actuating unit is arranged for example adjustable in the loading space, on a side wall or the like. In this case, a flexible loading of the cargo space with objects is ensured in particular. In further embodiments, the unlocking system can be coupled to other components of the vehicle, for example to an ignition lock, an immobilizer, a seat load sensor, a child safety device and the like. One embodiment provides a central further actuating unit for unlocking the folding mechanism of at least all rear seats arranged in the vehicle. This is advantageous for example in a minibus and / or a bus.

In addition, the invention includes the technical teaching that is provided in a method for unlocking a seat, in particular for unlocking a folding mechanism of a vehicle seat, with at least one unlocking, that the at least one unlocking device is triggered by at least two independent operating units to the folding mechanism to unlock. The actuation of the actuating units or the unlocking of the folding mechanism hereby preferably takes place independently. Unlocking in the sense of the invention, the prevention of unlocking is detected. So the same applies to unlocking also analogously for preventing the unlocking.

When remotely unlocking the folding mechanism, the further actuating unit is actuated in a first step, for example by manually pressing a pressure switch. The actuating unit is coupled to the unlocking device via the second coupling unit. In this case, the coupling unit transmits a signal triggered by the actuation to the unlocking device, for example, wired by tensile force and / or non-wired by radio or the like. In a further steps, the unlocking device unlocks the folding mechanism, so that the seat back can be folded manually and / or by means of an activator. In one embodiment, this is coupled by means of sensors. The sensor detects an actuation and locks or releases the unlocking.

In one embodiment, a signal is transmitted and detected by an ignition key. When a user with an ignition key approaches the vehicle from one side and opens a door, for example, the folding mechanism on the vehicle seat behind the opened door is unlocked while other folding mechanisms remain locked.

Further, the invention improving measures are given in the dependent claims or will become apparent from the following description of embodiments of the invention, which are shown schematically in the figures. For identical or similar components or features uniform reference numerals are used. Features or components of various embodiments may be combined to provide other embodiments. All resulting from the claims of the description or drawings features and / or advantages including design details, spatial arrangement and method steps may be essential to the invention for themselves as well as in a variety of combinations.

Show it:

1 a detail of a perspective view of a vehicle with two vehicle seats,

2 a further detail of a perspective view of the vehicle according to 1 .

3 a perspective view of the vehicle seats with a release system according to 1 .

4 a further perspective view of the vehicle seats according to 3 with two unlocking systems,

5 a section of a perspective view of a vehicle seat with a release system according to 4 , and

6 a perspective view of a compensation unit according to 5 ,

The 1 shows a section of a perspective view of a vehicle 20 with two vehicle seats 10 , The vehicle 20 has two vehicle seats designed as rear seats 10 on. The area in front of the vehicle seats 20 - in the direction of travel - is as a passenger compartment 21 and behind the vehicle seats 10 as a cargo space 22 educated. The two vehicle seats 10 each include a seat part 11 and a relative to the seat part 11 Folding seat back 12 , Next include the vehicle seats 10 at their outer sides each have a release system 1 , where in the 1 only the unlocking system 1 on the side of the vehicle facing a viewer 20 you can see. The other unlocking system 1 is at least partially in the 4 to see.

The unlocking system 1 serves to unlock a folding mechanism of the vehicle seat 10 , This includes the unlocking system 1 an unlocking device 2 for unlocking the folding mechanism. The unlocking device 2 is laterally on the seat part 11 of the vehicle seat 10 appropriate. Furthermore, the unlocking device comprises 2 a trigger element 2a for triggering the unlocking of the seat back 12 as soon as it is pressed. Next includes the unlocking system 1 a first operating unit 3a for actuating the unlocking device 2 , The first operating unit 3a is formed in this embodiment as a manually operable lever.

The lever is rotatable directly on the unlocking device 2 on the seat part 11 seconded. Therefore, the first operating unit 3a only by a user who is in the immediate vicinity of the unlocking device 2 is located, operable.

According to the invention, the unlocking system 1 a second actuator 3b for further actuation of the unlocking device 2 on. This second operating unit 3b is in the 1 not to be seen (see 2 and 3 ). By means of the second actuating unit 3b is a remote triggering the unlocking device 2 possible, for example from the hold 22 of the vehicle 20 out. The user no longer has to be in the immediate vicinity of the unlocking device 2 or the first actuating unit arranged there 3a to trigger the folding mechanism. Accordingly, the first operating unit 3a and the second operating unit 3b spaced apart. Furthermore, the operating units 3a and 3b separately, that is designed as independent components. The unlocking device 2 is both about the first operating unit 3a as well as the second operating unit 3b actuated.

Both actuators 3a and 3b are for triggering the folding mechanism with the unlocking device 2 coupled. Here is a first coupling unit 4a for coupling the first actuating unit 3a with the unlocking device 2 educated. The first coupling unit 4a is in the unlocking device 2 and the first operating unit 3a integrated trained. In addition, a second coupling unit 4b for coupling the second actuating unit 3b with the unlocking device 2 intended. The second coupling unit 4b is according to the 1 designed as a cable pull element in the form of a Bowden cable. According to the invention, the second coupling unit 4b formed much longer than the first coupling unit 4a because a distance from the unlocking device 2 to the second operating unit 3b is greater than the first operating unit 3a , For this reason, the second coupling unit 4b a compensation unit 5 on to the greater distance to the unlocking device 2 to compensate (see 2 . 5 and 6 ). The compensation unit 5 is in the embodiment of 1 designed as Zugkraftkompensator to a applied during actuation tensile force of the tension element or the second coupling unit 4b compensate or change.

The 2 shows a further section of a perspective view of the vehicle 20 according to 1 , The cargo space 22 or the vehicle seats 10 of the vehicle 20 are here from the direction of a rear of the vehicle 20 shown. The vehicle 20 with the vehicle seats 10 and the unlocking system 1 correspond basically in the 1 shown embodiment. A detailed description of components already described is therefore omitted. The same components are identified by the same reference numerals. The second operating unit 3b is in the hold 22 Fixed on an outer wall (here in the vehicle longitudinal direction on the left side) attached. In the embodiment of the 2 is the second actuator 3b designed as a manually operable push button.

Next is the second, designed as a Bowden cable coupling unit 4b to see. The second coupling unit 4b runs along the wall of the cargo space 22 up to the unlocking device 2 on the seat part 11 of the vehicle seat 10 , The compensation unit 5 is on a for unlocking 2 towards the end of the second coupling unit 4b on a lower or rear side of the seat part 11 attached. The second operating unit 3b allows a remote-triggered, here from the hold 22 triggered out, pressing the unlocking 2 , which are in the passenger compartment 21 on the seat part 11 located. The user is informed by the second operating unit 3b in the hold 22 ensures increased flexibility in triggering the folding mechanism. This is for example when loading the loading space 22 helpful.

The 3 shows a perspective view of the vehicle seats 10 with the unlocking system 1 according to 2 , The rear view of the 3 basically corresponds to the rear view of the 2 , Here, however, for better clarity, only the vehicle seats 10 shown. The vehicle seats 10 and the unlocking system 1 correspond basically in the 2 shown embodiment. A detailed description of components already described is therefore omitted. The same components are identified by the same reference numerals. In the 3 are the second operating unit 3b and the second coupling unit 4b with the compensation unit 5 for coupling to the unlocking device 2 shown. The second operating unit 3b is designed as a manually operable push button and arranged on the wall of the hold, not shown here. The second coupling unit 4b is designed as a Bowden cable and has a compensation unit for traction compensation 5 on. The compensation unit 5 is at a back of the seat part 11 attached.

The 4 shows a further perspective view of the vehicle seats 10 according to 3 with two unlocking systems 1 and 1' , The vehicle seats 10 and the one unlocking system 1 on the left in the direction of vehicle longitudinal extension corresponds in principle to the embodiment of 2 and 3 , A detailed description of components already described is therefore omitted. The same components are identified by the same reference numerals. The other unlocking system 1' is on the right in the vehicle longitudinal direction vehicle seat 10 arranged on the outside thereof. Both unlocking systems 1 and 1' are mirror images and in their structure and their function basically the same.

The other, right unlocking system 1' correspondingly has an unlocking device 2 ' on the seat part 12 the right vehicle seat 10 with a trigger element (not visible) and a first actuator unit 3a ' on. The first operating unit 3a ' is also manually operated and designed as a hand lever. According to the embodiment of the 3 is the first operating unit 3a ' directly on the unlocking device 2 ' arranged. Next, the other unlocking system 1' a second actuator unit (not shown), also in the cargo compartment 22 on a wall opposite the second actuator 3b of the first unlocking system 1 , is arranged stationary. In this embodiment, the second actuating unit is also designed as a manually operable push button.

The first operating unit 3a ' and the second actuating unit are both via a coupling unit with the unlocking device 2 ' coupled, wherein only the second coupling unit 4b ' you can see. The first coupling unit (not shown) is in the first operating unit 3a ' and the unlocking device 2 ' integrated trained. The second coupling unit 4b ' is designed as a cable pull element in the form of a Bowden cable. At the second coupling unit 4b ' is also a compensation unit 5 ' formed to the greater distance to the unlocking device 2 ' or compensate for the therefore necessary, larger traction. By means of the two unlocking systems 1 and 1' is in each case the folding mechanism of the two vehicle seats 10 separately triggerable. The unlocking systems 1 and 1' are executed uncoupled, so there is no coupling between the unlocking systems 1 and 1' or between the vehicle seats 10 in front. According to need, the seat backrests 12 the vehicle seats 10 individually or together foldable.

The 5 shows a section of a perspective view according to 4 , In the presentation of the 5 is the vehicle longitudinal left vehicle seat 10 with the arranged on the left outside unlocking system 1 shown. The embodiment of the vehicle seat 10 and the unlocking system 1 correspond basically in the 4 shown embodiment. A detailed description of components already described is therefore dispensed with. Identical components are identified by the same reference numerals. In the 5 is the one on the seat part 12 arranged unlocking device 2 with the trigger element 2a , the first operating unit 3a to see. The first coupling unit 4a is in the unlocking device 2 and the first operating unit 3a integrated and therefore not visible. Next is the second coupling unit 4b , which with the - not shown here - second control unit 3b couples, and the compensation unit 5 shown.

The 6 shows a perspective view of a compensation unit 5 according to 5 , The compensation unit 5 is designed as Zugkompensator. It serves to equalize the larger distance of the second operating unit 3b to the unlocking device 2 , In particular, the equalization unit is the same 5 a tensile force in the Bowden cable of the second coupling unit 4b out. For this purpose, the compensation unit 5 a compensation spring 6 on.

It should be understood that although the foregoing summary and detailed description of the figures have described only one exemplary embodiment, a number of other embodiments exist. Rather, the foregoing detailed description will be appreciated by those skilled in the art as suitable guidance for carrying out at least one example embodiment. It is also understood that the above-mentioned features of the invention can be used not only in the particular combination given, but also in other combinations or in isolation, without departing from the scope of the invention.

LIST OF REFERENCE NUMBERS

1, 1 '

unlocking

2, 2 '

unlocking

2a

triggering element

3a

first actuating unit

3b

second actuator

4a, 4a '

first coupling unit

4b, 4b '

second coupling unit

5, 5 '

compensation unit

6

Balancing tension spring

10, 10 '

vehicle seat

11

seat part

12

seatback

20

vehicle

21

passenger compartment

22

hold

Claims (8)

Unlocking system ( 1 . 1' ) for a seat, in particular for unlocking a folding mechanism of a vehicle seat ( 10 ) comprising at least one unlocking device ( 2 . 2 ' ) for unlocking the folding mechanism of the vehicle seat ( 10 ), and at least one first actuating unit ( 3a ) for actuating the at least one unlocking device ( 2 . 2 ' ), wherein at least one further actuating unit ( 3b ) for further actuation of the at least one unlocking device ( 2 . 2 ' ) is trained. Unlocking system ( 1 . 1' ) according to claim 1, wherein the at least one first actuating unit ( 3a ) and the at least one further actuating unit ( 3b ) are spaced apart from each other and / or formed separately. Unlocking system ( 1 . 1' ) according to claim 1 or 2, wherein at least one first coupling unit ( 4a . 4a ' ) for coupling the at least one unlocking device ( 2 . 2 ' ) with the at least one first actuating unit ( 3a ) and at least one further coupling unit ( 4b . 4b ' ) for coupling the at least one unlocking device ( 2 . 2 ' ) and / or the first operating unit ( 3a ) with the at least one further actuating unit ( 3b ) is provided. Unlocking system ( 1 . 1' ) according to one of the preceding claims 1 to 3, wherein the at least one further coupling unit ( 4b . 4b ' ) a compensation unit ( 5 . 5 ' ) having. Vehicle seat ( 10 ) at least comprising a seat part ( 11 ), a folding seat back ( 12 ) and at least one folding mechanism with a release for folding the seat back ( 12 ), wherein the unlocking as unlocking system ( 1 . 1' ) is designed according to one of the preceding claims 1 to 4. Vehicle ( 20 ), comprising at least one seat device, wherein the at least one seat device as a vehicle seat ( 10 ) is designed according to claim 5. Vehicle ( 20 ) according to claim 6, wherein the at least one second actuating unit ( 3b ) for unlocking the folding mechanism of the vehicle seat ( 10 ) spaced from the seat back to be folded, in particular in a loading space ( 22 ) of the vehicle ( 20 ) is arranged. Method for unlocking a seat, in particular for unlocking a folding mechanism of a vehicle seat ( 10 ), with at least one unlocking device ( 2 ), wherein the at least one unlocking device ( 2 ) by means of at least two independent actuators ( 3a . 3a ' . 3b . 3b ' ) is released to unlock the folding mechanism.

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