DE202009002580U1 - Automotive seat - Google Patents

Abstract

Motor vehicle seat with
A seat underframe (11) which can be adjusted along a rail longitudinal guide (15, 16) and on which a backrest (13) is pivotably articulated and can be folded forward in the direction of a seat surface (12) of the seat underframe (11),
- A locking device (5) for locking the rail longitudinal guide (15, 16) in an adjustable seat longitudinal position,
- An entry aid (E) with which the locking device (5) is unlocked when the backrest (13) on the seat surface (12) is folded forward,
- And a memory device for setting and retrieving a memory position with a position memory (1, 2), an adjusting means (1) for adjusting the memory position in the rail longitudinal direction (L) of the rail longitudinal guide (15, 16) and a pivotable with the adjusting means (1) connected to the blocking element (2) which under the action of a control element (3, 6) in a locking rail (16, 160) for locking the set memory position and pivoting for setting a memory position from the locking rail ( 16, 160) can be swung out,
- wherein the control (3, 6) with a ...

Description

The The invention relates to a motor vehicle seat according to the preamble of claim 1.

From the WO 00/5002 A1 is a motor vehicle seat is known which has a seat frame and a seat back hinged to the seat back, which is in a deployment of the vehicle seat as a front seat in particular two-door vehicles from its substantially upright use position out in the direction of a seat surface of the seat frame folded forward. The seat frame is movable to adjust the seat longitudinal position along a longitudinal rail guide and locked by means of a locking device with at least one movably mounted locking element to a previously set seat longitudinal position on a locking rail having a plurality of rail longitudinally successively arranged locking points, in which engages the locking element for locking the rail longitudinal guide.

The Rail longitudinal guide comprises a vehicle or Body-mounted guide rail (lower rail) and a seat-side guide rail supporting the seat frame (Upper rail), which engage in such a way that the seat-side Guide rail along the extension direction of the rail longitudinal guide, d. H. in the rail longitudinal direction, on the body arranged guide rail can verscho ben to the Relocate seat frame in the rail longitudinal direction, ie to reset the seat long position.

The a plurality in the rail longitudinal direction arranged one behind the other Locking points having locking rail of the rail longitudinal guide, in which the locking element for locking the rail longitudinal guide can intervene in a certain seat longitudinal position, is usually with the body to be arranged bottom rail the rail longitudinal guide combined to form a structural unit, In particular, the locking rail in one piece in the bodywork to be arranged lower rail integrated by their Locking points as Unterschienenlochbild directly in the formed body-mounted guide rail itself are.

Around the entry of a passenger in the rear of a motor vehicle to facilitate and the maximum space for entry is to provide in the rear row of seats is an entry aid or so-called "easy-entry function" provided with the after folding the backrest in the direction on the seat, the locking of the rail longitudinal guide canceled and thereby the seat frame and thus the entire vehicle seat after can be moved forward so that the maximum space for the entry into the rear or to the rear row of seats of the motor vehicle is granted. So that the motor vehicle seat then simply brought back to its original sitting position becomes, becomes the original seat longitudinal position by means of a memory or memory device provided for this purpose stored as a memory position, so that the seat frame when pushing back automatically stopped in the memory position, with one of the Memory device associated stop with a seat frame associated counter-attack cooperates.

To the Storing the memory position, a position memory is provided, the adjusting means for adjusting the memory position in the rail longitudinal direction the rail longitudinal guide and a swiveling with the adjusting means connected locking element for anchoring the memory device in a certain seat longitudinal position, the in a separate, parallel to the locking rail of the seat longitudinal adjustment aligned latching rail or in the locking rail or the Unterschienenlochbild engages itself.

to Control of engaging and disengaging the blocking element in and out of the locking or locking rail is a control provided, which ensures that the blocking element in the locking rail engages and locks the memory device when the backrest is folded forward to exercise the memory function. For this the locking element is elastically in the direction of engagement with the locking rail biased. Is the seat with arranged in use position, so substantially upright backrest in the memory position, the control acts on the Locking element that it dug out of the locking rail is. In addition, it can be provided in a new setting the seat longitudinal position of the vehicle seat with in use position located backrest at the same time a new memory position, according to the newly set seat longitudinal position of the vehicle seat adjust.

At the Folding the backrest to perform the easy-entry function on the other hand, the control releases the blocking element, so that this now under the action of the elastic bias engages with the locking rail and the current Seat longitudinal position of the vehicle seat as a memory position stores. For this purpose, the control via a coupling mechanism, For example, via a Bowden cable, with the backrest connected.

The control includes, for example, a control lever which is resiliently biased towards a position in which he so on the Sperrele ment acts, that this is dug out of the locking rail. When folding the backrest against that bias the control lever is transferred to a position in which he releases the locking element.

Farther the backrest can be assigned a locking mechanism be with which the backrest in their on the seat Pre-folded position is lockable, so that during the exercise of memory function permanently in vorklappter Situation remains. This locking mechanism is a common movable with the seat frame, z. B. on the seat side rail Assigned stored release element, which when starting the memory position is actuated and so with the unlocking mechanism the backrest, for example via a Bowden cable, coupled is that it locks the locking mechanism when starting the memory position unlocked. For this purpose, for example, at the Memory device a button, z. B. in the form of a Ramp, provided, with which preferably as a pivotally mounted Comfort or release lever trained release element when Reaching the memory position cooperates, with the trigger element is actuated such that it is the folded backrest unlocked. For this purpose, the trigger element by a lateral cut in the top rail of the rail longitudinal guide led, what the crash safety of the rail longitudinal guidance reduced and increased assembly costs.

The Control that when folding the backrest the Lock the memory device causes, as well as the trigger element, when approaching the memory position after exercising the Easy-entry function the unlocking of the folded backrest causes, are preferably pivotally mounted on the same bearing axis. This bearing axis is together with the seat frame in the rail longitudinal direction displaceable, ie in particular on the seat-side upper rail arranged the rail longitudinal guide.

There the on impact of the seat frame counter-attack on the provided on the blocking element of the memory device stop exerted forces on the blocking element be introduced directly into the very stable locking rail can, the slider, on which the blocking element can be pivoted is stored, and provided for guiding the slider Slide rail inexpensively made of plastic.

The Control with which to bring and disengage the locking element of the memory device with the locking rail is controllable, beyond that can serve at in Useful position of the backrest and accordingly unlocked memory device, so as a driver on trained as a slider adjusting the memory device to act that with an adjustment of the vehicle seat with in the use position of the backrest over the memory position the adjustment means automatically according to the displacement of the Motor vehicle seat is reset. This is the control with the backrest folded up with the blocking element of the Memory device and / or as adjustment of the memory device serving slider positively engages.

Becomes the memory position after exercising the Easy Entry function once approached with an upright backrest, as in the case a vehicle seat that can not be locked in its folded position is, the control slides over a control surface the blocking element of the memory device, this from the Locking rail is dug, and gets as well positively with the blocking element or the associated slider the memory device in engagement, so that in a Weiterbewe supply of the motor vehicle seat with befindlicher in use position backrest the Memory position can be reset. The memory position thus always represents the last with in use position located seat back angefahren seat longitudinal position.

From the DE 100 57 721 A1 It is known to use a control acting on the locking element driver, which is arranged longitudinally displaceable on the seat rail and includes an elongated body, at its lower, the locking element end facing a provided with a driving opening driving element is formed. The driver is biased by means of a compression spring, which is supported on the one hand on the seat rail and the other on the driving element, in the direction of the locking element, that it has the tendency to dig a latching hook of the pawl from the locking rail, at the same time designed as a latching projection of the Locking elements engages in the driving opening of the driver. The driver is controlled by a switching means which lifts the carrier from the blocking element when the seat back is folded forward onto the seat surface. In order to guide the driver designed as a control pin sufficiently accurate, a hole in the upper or seat rail or in the locking device is required with the rail longitudinal guide is locked.

Alternatively, the control, which causes the locking of the memory device when folding the backrest, as well as the readout element, which causes the unlocking of the folded backrest when starting the memory position after exercise of the boarding aid function, as Swivel lever are formed and are pivotally mounted on the same bearing axis. This bearing axis is displaceable together with the seat frame in the rail longitudinal direction, that is arranged in particular on the seat-side upper rail of the rail longitudinal guide.

Such, designed as a pivot lever control is from the DE 10 2005 020 696 A1 known. However, the pivotal movement of the pivoting lever, which is required to actuate the locking element, requires a larger incision in the upper or seat rail, whereby the stability and crash safety of the upper rail is impaired.

task The present invention is an apparatus for controlling the movement of the components of a boarding aid and memory device for a motor vehicle seat indicate that at low Manufacturing and assembly costs only a small section in requires the upper rail of the rail longitudinal guide, their stability is not significantly impaired and increases the crash safety of the vehicle seat.

These Task is according to the invention with the features of claim 1.

The Solution according to the invention provides a device for controlling the movement of the components of a boarding aid with memory device for a motor vehicle seat ready, associated with a low manufacturing and assembly costs is, only a small section in the upper rail of the rail longitudinal guide requires the stability of the top rail and thus the Rail longitudinal guidance not significantly impaired and thus increases the crash safety of the vehicle seat.

With the solution according to the invention is the rotational movement the with the actuator for the entry-level assistance function operatively connected to the bearing axis swiveling rocker in a translatory Movement of the control lever implemented, so that to control the Locking elements when anchoring and releasing the position memory only a small section in the upper rail of the Rail longitudinal guidance is needed, the in Substantially the cross-sectional shape of the control lever is adjusted. By the storage of the control on the bearing axis is a easy assembly ensured, since the components of the control only aufzustecken on the bearing axis are. At the same time as a result of Pivoting movement of the rocker for translational lifting and lowering of the rocker Control lever an exact adjustment of the movement during anchoring the position memory in the locking rail and unlock the locking device when triggering the boarding assistance function guaranteed.

Preferably the control lever is vertical or at an obtuse angle to Longitudinal extension of the control surface of the locking element movable and thus ensures that that is opposite to the Slider of the position memory in the direction of engagement in the locking rail sprung locking element is safely controlled, so that a safe Anchoring the position memory in a memory position as well its release by complete lifting out of the Anchoring for longitudinal adjustment of the position memory to set a new memory position is guaranteed.

The translational adjustment of the control lever to actuate the position memory is preferably by a between the control lever and the rocker arranged lever or camshaft assembly causes which has a small footprint and compared to one usually used spring mechanism with little effort in particular as Plastic injection molded part can be produced.

to Storage on the bearing axis, the control lever has a slot, which is attached to the bearing axis, so no separate Guide the control lever in the upper rail or in the locking device required for rail longitudinal guidance is.

The the rotational movement of the rocker in a translational movement the control lever converting lever or camshaft assembly of the Control is preferably made up of a control cam of the Steering lever and a sliding on the cam control cam the rocker together, so that when pivoting the rocker the on the control cam of the control lever acting control cam due the connection of the control lever via a slot with the Bearing axis the control lever translational, d. H. in the direction of the longitudinal extent the slot in relation to the control surface of the locking element emotional.

To the Triggering the entry-aid function is the rocker over a trigger Bowden cable with the ergonomic reasons arranged in the region of the upper edge of the backrest entry aid lever connected, wherein the tripping Bowden cable preferably on a formed as part of the control rope support a pulley or is inserted in a pulley, which is attached to the bearing axis and is coupled with the rocker.

Due to the arrangement of the pulley for receiving the tripping Bowden cable is on the one hand ensures an exact guidance of the tripping Bowden cable and on the other an adaptation to under different kinematics of entry-level structures with memory function for different motor vehicle seats possible because the longitudinal movement of the tripping Bowden cable can be converted into a constant pivotal movement of the rocker by the configuration or geometry of the pulley.

To For this purpose, the rope support of the pulley for the Tripping bowden cable eccentric to the bearing axis trained, so by specifying and setting the geometry and arrangement of the cable support, the pulley, the rocker, a Entrieglerhe lever the locking device for unlocking the rail longitudinal guide for adjusting the motor vehicle seat and an unlocking lever actuated, with the rocker operatively connected actuating lever, the rotary and translational functional elements of the control such can be matched to each other that the position memory anchored in the locking rail before the rail longitudinal guide is released for adjusting the vehicle seat. This is a secure anchoring of the position memory in the locking rail and thus ensures a secure adjustment of the memory position.

to Optimization of the ease of use when using an entry-level help system is the backrest in her on the seat the seat base folded position by means of a locking mechanism locked, the unlocked by means of a comfort lever again is, which is actuated when approaching the memory position and with the locking mechanism of the backrest over a trigger Bowden cable is coupled.

to Simplifying the assembly, the comfort lever is also pivotable up the control element receiving bearing axis mounted on a together with the seat frame in the rail longitudinal direction slidable bracket is supported, and has a first lever end on, the approach to the memory position a locking ramp of the locking element of the position memory ascends, whereby the comfort lever for unlocking the locking mechanism is pressed.

In preferred embodiment, the comfort lever is U-shaped trained and has a first, with the trigger Bowden cable connected leg, a second leg, the lever end with the locking ramp of the position memory cooperates, and a connecting leg on. The first or second leg of the U-shaped comfort lever is by a arranged on the upper edge of the upper rail cutout guided.

By the use of a U-shaped comfort lever, the control the comfort function for unlocking the folded backrest when approaching the memory position after exercising the boarding assistance function from the interior of the rail longitudinal guide to the outside be relocated without a side incision in the upper rail is required. Due to the omission of the lateral Cut-out in the top rail will increase the strength of the top rail and the crash safety of the rail longitudinal guidance not impaired.

Based of embodiments shown in the drawing are intended to further features of the invention and of the invention lying thought to be explained in more detail. Show it:

1a to 1e schematic representations of a seat frame of a motor vehicle seat to explain the function of the boarding aid and memory device according to the invention;

2 a perspective view of the locking device and memory device for a motor vehicle seat;

3 a side view of the locking device and memory device according to 2 ;

4 a cross section through the locking device and memory device according to the 2 and 3 ;

5 an isometric view of the locking device and memory device according to the 2 to 4 ;

6 a perspective view of a position memory with pivotally guided in a slider locking element;

7 and 8th an isometric view and side view of a control lever according to the invention of the control;

9 to 11 a front view, side view and isometric view of the rocker of the control;

12 to 14 an isometric view, side view and sectional view of the control in a position storage entnehmenden position;

15 to 17 an isometric view, side view and sectional view of the control in a position storage storing and anchoring position;

18 to 20 a side view, front view and isometric view of the U-shaped comfort lever and

21 to 25 schematic representations of the movement phases of the components of the memory device for adjusting and locking the memory device.

In the 1a to 1e is provided with an entry aid and a memory device seat system S of a motor vehicle seat shown schematically in different stages of movement of the boarding aid and memory device. The seating system shown schematically in a side view has a seat base shown in dashed lines 11 on, on the over a hinge fitting 14 a backrest 13 is hinged pivotally. The seat base 11 is with a seat-side guide rail 15 (Upper rail) connected longitudinally displaceable in the rail longitudinal direction L on a guide rail attached to the vehicle body 16 (Bottom rail) is stored. The seat base 11 has a seat support or a seat surface 12 for receiving a seat cushion, on which a vehicle occupant can take place.

The longitudinally displaceable in the rail longitudinal direction L on the lower rail 16 movable upper rail 15 is with a locking device 5 connected to the top rail 15 in different positions on the with a locking profile in the form of a toothing, a Unterschienenlochbildes 160 or the like provided bottom rail 16 can be locked to set an optimum for the occupant seating position.

If such a vehicle seat adjustable in the longitudinal direction L of the rail is used for a two-door motor vehicle, an entry aid (easy-entry component) E is provided for facilitating entry into the rear of the motor vehicle, with which the backrest 13 is coupled to the seat longitudinal adjustment, that when folding the backrest 13 towards the seat 12 of the seat base 11 the rail longitudinal guidance 15 . 16 associated locking device 5 is unlocked and the vehicle seat with folded back 13 can be relocated.

If the vehicle seat after folding the backrest 13 on the seat 12 and the subsequent displacement in an entry facilitating, vorverlager te position are pushed back to its original position before exercise the boarding assistance function, so facilitates a memory device with a position memory 1 . 2 the retrieval of the original seating position by using the position memory 1 . 2 when folding the backrest 13 on the seat 12 of the seat base 11 the current seat longitudinal position of the seat base 11 stored and the vehicle seat when pushing back from the forward position automatically stopped in the stored as a memory position seat longitudinal position again by a counter-stop one together with the seat base 11 slidable assembly on a stop in the lower rail hole image 160 anchored position memory 1 . 2 meets.

1a shows the starting position of a motor vehicle seat before pressing the boarding aid E and memory device with the position memory 1 . 2 in which is the backrest 13 located in a substantially upright position and the locking device 5 the longitudinal adjustment of the rail longitudinal guide 15 . 16 fixed. By pressing an entry aid lever 18 on the backrest 13 is the locking of the backrest 13 by means of one with the hinge fitting 14 cooperating locking member 17 for a backrest folding over a Bowden cable 83 released and the entry aid E triggered. By releasing the locking of the backrest 13 will pivot the backrest 13 around the axis of rotation in the hinge fitting 14 towards the seat 12 of the seat base 11 allows, due to this movement a Betätigungsbowdenzug 81 pulled and the entry aid E is controlled.

The kinematics of the entry aid E controls via an unlocking Bowden cable 84 according to 1b the locking device 5 on and unlocks the locking of the rail longitudinal guide 15 . 16 To do this when folding the backrest 13 on the seat 12 of the seat base 11 to be able to solve, so that the rail longitudinal guidance 15 . 16 to move forward of the seat frame to each other, after the position memory 1 . 2 the memory device has been released.

If the motor vehicle seat from the in 1b moved position shown, the position memory remains 1 . 2 in the lower rail 16 at the previously set memory position. In a system with comfort function, one with the position memory 1 . 2 Actively connected comfort or release lever 4 according to 1c pivots and locks over a trigger Bowden cable 82 and a lever 19 the backrest 13 in the folded position.

As in 1d shown, beats when pushing back the comfort lever 4 to the position memory 1 . 2 at. About the entry aid E is the trigger Bowden cable 82 attracted and pivoted the lever 19 that the lock 17 the backrest 13 in the hinge fitting 14 releases, leaving the backrest 13 without pressing the access aid lever 18 can be folded back.

The entry aid E locks according to 1e above the locking device 5 the longitudinal adjustment of the rail longitudinal guide 15 . 16 and takes the position memory 1 . 2 back up. Will the backrest 13 completely pivoted around, so locks the backrest 13 again by means of the locking member 17 in the hinge fitting 14 in the originally set upright position accordingly 1a ,

Can the vehicle seat due to disabilities, such. B. large people or objects in the rear of the vehicle, not be pushed back completely, it may accordingly 1e over the entry aid lever 18 the rotational movement of the backrest 13 be released. By raising the backrest 13 is over the Betätigungsbowdenzug 81 the locking device 5 set and the longitudinal adjustment of the with the top rail 15 connected seat frame 11 on the bottom rail 16 blocked. In the next method of the vehicle seat to the rear of the position memory 1 . 2 then resumed.

The following is based on the 2 to 18 an entry aid (easy-entry function) for a motor vehicle seat with memory device and an inventively designed control and triggering element explained.

In the 2 to 5 are the components required for understanding the structure and function of the position memory according to the invention an entry-aid assembly and memory device for a motor vehicle seat in isometric views and a longitudinal and cross-section through the assembly shown.

The in 6 isolated position memory shown 1 . 2 the memory device contains a slider as adjusting means 1 on a rail L extending in the rail longitudinal direction 100 according to 5 is mounted longitudinally displaceable, and a blocking element 2 pivoting with the slider 1 connected is. The glider 1 can on the slide rail 100 , which preferably with the body-mounted bottom rail 16 the rails longitudinal guidance 15 . 16 is combined to form an assembly, are moved in the rail longitudinal direction L in different longitudinal positions, in which he then by pivoting the blocking element 2 is lockable. Both the glider 1 as well as the associated slide rail 100 are preferably made of plastic.

A current longitudinal position of the slider 1 in which the position memory 1 . 2 by means of the blocking element 2 is locked, corresponds in each case to a memory position in which the seat base 11 is automatically stopped when pushed back from a pre-displaced position to facilitate entry.

The blocking element 2 of the position memory 1 . 2 includes a main body 20 with a lateral slide guide 28 . 29 with two mutually merging and extending in different directions backdrop guide sections 28 and 29 for pivotally mounting the blocking element 2 on guide pins 101 . 102 attached to a body 10 of the slider 1 arranged or integrally connected thereto. This type of pivotal connection of the locking element 2 with the glider 1 of the position memory 1 . 2 causes a shift of the virtual pivot point of the locking element 2 passing through the intersection of the normals of the slide guide sections 28 . 29 is determined, in an area below the lower rail hole image 160 the bottom rail 16 according to 5 and optimizes the latching behavior of the blocking element 2 ,

On the top of the barrier element 2 extends a control surface 22 about which the blocking element 2 cooperates with a control lever explained below to the state of the locking element 2 to control, and one opposite the control surface 22 stepped barrier ramp 23 , Which cooperates with a comfort lever also explained below, the locking of the seat on the seat when returning the motor vehicle seat from the entry position 12 folded backrest 13 solves.

A distinction is made between a state in which a locking area 26 . 27 of the blocking element 2 in a hole 161 of the lower rail hole picture 160 locks into place, leaving the position memory 1 , is locked in a certain seat longitudinal position, and a state in which the locking area 26 . 27 of the blocking element 2 from the lock with the lower rail hole pattern 160 the bottom rail 16 is dug, so that the position memory 1 . 2 to readjust a memory position in the rail longitudinal direction L can be moved.

Between the slider 1 and the blocking element 2 is an elastic element, in particular in the form of a cross-section through the locking device 5 and memory device according to 4 registered coil spring 21 provided with the blocking element 2 is biased toward the locked state, so that the control lever 3 in particular for lifting the locking area 26 . 27 of the blocking element 2 from the lock with the lower rail hole pattern 160 the bottom rail 16 against the action of the elastic element 21 serves.

To the position memory 1 . 2 in the rail longitudinal direction L to move when the blocking element 2 from the Unterschienenloch picture 160 the bottom rail 16 dug, that shows blocking element 2 on a control surface 22 ramp-shaped stops for a transport contour on which the control lever 3 applies to the position memory 1 . 2 for a new setting of a memory position to take.

At one end face of the blocking element 2 is a stop surface 24 provided in the locked state of the blocking element 2 with a seat frame side or seat rail side counter stop 500 interacts with the seat frame in the current memory position in which the position memory 1 . 2 filed and with the Unterschienenlochbild 160 the bottom rail 16 is locked, when pushing back after pressing the boarding assistance stop. One at the opposite end face of the barrier element 2 provided stop surface 25 serves as a stop when the seat frame is moved to its rearmost position, in which the stop surface 25 in contact with a on the vehicle-fixed bottom rail 16 provided limit stop device.

On its underside, the blocking element 2 a catch 26 and a locking leg 27 depending on the respective latching position both in a hole 161 of the lower rail hole picture 160 engage or are positioned so that either the latch 26 into a hole in the lower rail hole picture 160 engages during the locking leg 27 on a jetty 162 of the lower rail hole picture 160 rests or the catch 26 on a jetty 162 of the lower rail hole picture 160 rests and thus also the locking leg 27 out of engagement with the lower rail hole pattern 160 the bottom rail 16 is.

The locking device 5 according to the 2 to 5 one with the top rail 15 connected guide piece 50 on, the seat frame side or seat rail side counter stop 500 with the stop surface 24 of the blocking element 2 of the position memory 1 . 2 engages to stop the motor vehicle seat in a seated longitudinal position stored as a memory position. The leader 50 has three guide openings for the longitudinally displaceable guidance of locking pins 51 . 52 . 53 on, for locking the rail longitudinal guide 15 . 16 serve. One in the housing of the locking device 5 pivotally mounted Entriegler 54 is with an unlocker plate 56 connected, the plate-shaped heads of the locking pins 51 . 52 . 53 engages underneath and with a torsion spring 55 is biased. The three locking pins 51 . 52 . 53 the locking device 5 are by means of coil springs 57 elastic towards the lower rail hole pattern 160 the bottom rail 16 biased. Due to the on the locking pins 51 . 52 . 53 acting bias the rest of the top rail 15 associated locking pins 51 . 52 . 53 automatically in the holes 161 of the body-fixed under-the-rail hole picture 160 a, so that the seat longitudinal adjustment is locked, if not by means of the designated Entrieglers 54 the locking pins 51 . 52 . 53 over the Entrieglerblech 56 out of engagement with the latching device of the lower rail hole pattern 160 are brought.

Because the Entriegler 54 the locking device 5 by means of the torsion spring 55 and the on the locking pins 51 . 52 . 53 acting coil springs 57 biased against the direction in which the Entriegler 54 for unlocking the locking device 5 can be pivoted, the locking device 5 only be unlocked when on the Entriegler 54 a force against the action of the torsion spring 55 and the locking pins 51 . 52 . 53 biasing coil springs 57 is exercised.

To unlock the locking device 5 may the Entriegler 54 on the one hand be actuated directly by a seat occupant that this engages a pivotally hinged on the seat frame actuating lever on a dedicated operating handle and this pivots, causing the Entriegler 54 against the bias of the springs 55 . 57 moved down. On the other hand, the locking device 5 also by folding the backrest 13 be unlocked, including the backrest 13 over the Betätigungsbowdenzug 81 with the entry aid lever 18 is coupled.

The Unterschienenloch picture 160 is in the bottom rail 16 the rail longitudinal guidance 15 . 16 integrated and is arranged by a plurality of rails in the longitudinal direction L successively arranged and by webs 161 separate locking holes or holes 161 formed, in which the locking pins 51 . 52 . 53 the locking device 5 intervene to the rail longitudinal guidance 15 . 16 to lock in a previously set longitudinal position.

It is the through the ratchet tooth 26 and the locking leg 27 formed engagement region of the locking element 2 designed so that even this engaging area 26 . 27 in the holes 161 of the lower rail hole picture 160 the bottom rail 16 can intervene to the position memory 1 . 2 to lock in a defined longitudinal position. So it will be one and the same locking holes or holes 161 both for locking the rail longitudinal guide 15 . 16 by means of the locking pins 51 . 52 . 53 the locking device 5 as well as to lock the position memory 1 . 2 the memory module by means of the locking element 2 trained engagement area 26 . 27 used.

The bracket H forms together with the components attached thereto, in particular the control 3 . 6 and the comfort lever 4 a before Mountable module, completely pre-assembled on the top rail 15 a seat frame can be attached. This can be the comfort lever 4 optionally be provided only in the event that the seat frame with a locking mechanism for locking the backrest 13 is equipped in the folded state.

The rest of the entry aid E with the backrest 13 in operative connection Entriegelungsbowdenzug 84 for coupling the backrest 13 to the locking device 5 the rail longitudinal guidance 15 . 16 dissolves when folding the backrest 13 on the seat 12 of the seat base 11 the locking device 5 , so that the rail longitudinal guide 15 . 16 to move forward of the seat frame to each other. The unlocking Bowden cable 84 is via the rocker described above 6 with the backrest 13 coupled, wherein the Entriegelungsbowdenzug 84 over a spacer comparatively large angular movements of the rocker 6 can record. When swiveling the rocker 6 becomes a movement of the sheath of Entriegelungsbowdenzugs 84 along the Bowdenzugachse causes, which for the release of the locking device 5 is being used.

In the 7 to 17 is the control 3 . 6 for controlling the position memory 1 . 2 when folding the backrest 13 the locking of the memory device causes, shown in different views. The control 3 . 6 sits down with the control surface 22 of the blocking element 2 of the position memory 1 . 2 together acting control lever 3 and the control lever 3 driving and with the Betätigungsbowdenzug 81 functionally connected rocker 6 together.

The in the 7 and 8th in a isometric view and a side view illustrated control lever 3 has a basic body 30 on, at one end of the lever 32 a control contour is provided on the control surface 22 of the blocking element 2 of the position memory 1 . 2 for lifting the locking element 2 from the lock with the lower rail hole pattern 160 the lower or locking rail 16 rests on or from the control surface 22 of the blocking element 2 is lifted off, leaving the locking area 26 . 27 of the blocking element 2 in the Unterschienenloch picture 160 the locking rail 16 for locked storage of the position memory 1 . 2 under the action of the slider 1 and the blocking element 2 effective coil spring 21 intervenes. At its opposite end of the lever 31 has the control lever 3 a slot 34 on top of that with the bracket 9 connected bearing axis 9 is attached and the control lever 3 in a translatory movement along the bearing axis 9 leads. The lever end 31 of the control lever 3 points adjacent to the slot 34 a control curve 33 on, the arcuate around the slot 34 runs.

The in the 9 to 11 in a front view, side view and isometric view illustrated rocker 6 of the control 3 . 6 has a basic body 63 . 64 . 65 with a parallel to the bearing axis 9 running bridge 63 , an arched bridge 64 and a connecting bridge 65 and at the ends of the body 63 . 64 . 65 arranged bearings 61 . 62 with bearing holes on the bearing axis 9 be plugged. At the one depository 62 is a control cam 60 trained, with the control curve 33 of the control lever 3 cooperates and the translational movement of the control lever for controlling the blocking element 2 of the position memory 1 . 2 effected in the manner of a camshaft arrangement.

In the 12 to 17 is the interaction of the control lever 3 and the seesaw 6 of the control 3 . 6 in different views both when driving the position memory 1 . 2 for changing a memory position as well as for storing the position memory 1 . 2 shown in a memory position.

The 12 to 14 show the control in an isometric view, a side view, and a section view 3 . 6 when taking the position memory 1 . 2 , The seesaw 6 is with their bearings 61 . 62 and the control lever 3 with his slot 34 on the bearing axis 9 plugged, the control cam 60 the seesaw 6 at the control curve 33 of the control lever 3 in a position in which the control lever 3 is lowered, so he with his at one end of the lever 32 trained control contour on the control surface 22 of the blocking element 2 of the position memory 1 . 2 pushes and thus the intervention area 26 . 27 of the blocking element 2 against the between the slider 1 and the blocking element 2 effective coil spring 21 from the Unterschienenloch picture 160 the bottom rail 16 lifts out. In this position of the control 3 . 6 can the position memory 1 . 2 along the rail longitudinal guide to set a new memory position to be taken.

In the 15 to 17 is the control 3 . 6 in an isometric view, a side view and in a sectional view in the storage of the position memory 1 . 2 shown. By pivoting the rocker 6 clockwise around the bearing axis 9 opposite to the orientation of the rocker 6 at the in the 12 to 14 shown driving position of the position memory 1 . 2 slides the control cam 60 the seesaw 6 at the control curve 33 of the control lever 3 along and lift the joystick 3 along the bearing axis 9 in translation, so that according to 17 the bearing axis 9 at the lower end of the slot 34 of the control lever 3 comes to the plant. In this position is the control lever 3 opposite the control surface 22 the blocking element of the position memory 1 . 2 raised so that the locking area 26 . 27 of the blocking element 2 under the action of the slider 1 and the blocking element 2 effective coil spring 21 in the Unterschienenloch picture 160 the bottom rail 16 for anchoring the position memory 1 . 2 intervenes.

Through the guidance of the control lever 3 in a slot 34 along the bearing axis 9 and control of the control lever 3 by means of the control cam 60 the seesaw 6 along the control curve 33 becomes the translatory movement of the control lever 3 produces a small recess in the top rail 15 the rail longitudinal guidance 15 . 16 requires. The seesaw 6 is preferably carried out as a stamped part and by means of in 2 shown torsion spring 90 reset.

The cable guide of the Betätigungsbowdenzuges 81 for swinging the seesaw 6 around the bearing axis 9 takes place in this embodiment by the according to the 2 to 4 on the bearing axis 9 put on and with the seesaw 6 connected pulley 7 , An eccentric design of the Bowden cable support of the pulley 7 changes the contact point of the rope 811 of the actuating bowden cable 81 to the bearing axis 9 , As a result, the unlocking force and the Bowdenzugweg the Betätigungsbowdenzuges 81 changeable, by at the beginning of the operation a large pan and thus a quick operation of the control 3 . 6 takes place while after unlocking the locking device 5 the pulley 7 and with it the seesaw 6 only minimally rotated until the backrest 13 is locked.

In contrast to a uniform release by means of a circular pulley, in which the locking area of the position memory 1 . 2 is pressed out of the lower rail and the locking portion to the engagement in the lower rail hole pattern biasing spring is completely compressed and plastically deformed, is in an eccentric release the locking device 5 rather actuated and the system is not maximally deflected. This ensures that first the position memory 1 . 2 in the lower rail 16 latched before the longitudinal adjustment by unlocking the locking device 5 is released. This ensures the storage of a memory position before the method of the motor vehicle seat.

The comfort function is by means of in the 18 to 20 in a side view, a front view and an isometric view shown U-shaped comfort lever 4 triggered.

The U-shaped comfort lever 4 is designed as a simple stamped part and between the pulley 7 and the seesaw 6 of the control 3 . 6 stored. He points two by a connecting leg 44 interconnected, mutually parallel legs 41 and 43 on, at the at the connecting leg 44 adjacent ends aligned holes 45 seconded with which the comfort lever 4 on the bearing axis 9 is plugged. At the end of the first thigh 41 is a hole 46 for attaching the rope of Entriegelungsbowdenzugs 82 according to the 1a to 1e provided for unlocking the locking mechanism when approaching the memory position after exercise of the boarding assistance function. The lever end 42 of the second leg 43 on the other hand, it works with the blocking ramp 23 of the blocking element 2 of the position memory 1 . 2 together. Through a corresponding Bowdenzugweg the Entriegelungsbowdenzugs 82 a preset rotation angle is set with which the comfort lever 4 around the bearing axis 9 is pivoted and the position memory 1 . 2 in the Unterschienenloch picture 160 presses and locks the position memory 1 . 2 in the Unterschienenloch picture 160 the bottom rail 16 guaranteed. Due to the positive connection between the blocking element 2 and the under-the-rail hole picture 160 and the force in the Z direction of the comfort lever 4 becomes the blocking element 2 of the position memory 1 . 2 in the Unterschienenloch picture 160 pressed.

By the U-shaped configuration of the comfort lever 4 the condition is created that the comfort lever 4 not by a large cutout on the side of the top rail 15 the rail longitudinal guidance 15 . 16 from between the top rail 15 and the bottom rail 16 formed gap must be performed, but by a small cutout on the top of the top rail 15 can be plugged, creating optimum strength of the top rail 15 and thus high crash resistance of the rail longitudinal guidance 15 . 16 is guaranteed.

The following is based on the 21 to 25 the movement of the components of the boarding aid and Memeory device in conjunction with de control 3 . 6 and the comfort lever 4 explained in more detail.

In the in the 21 and 22 shown driving position of the position memory 1 . 2 , the upright, in use position backrest 13 corresponds, is the locking area 26 . 27 of the blocking element 2 not engaged with a hole 161 of the lower rail hole picture 160 the bottom rail 16 , but is from the Unterschienenlochbild 160 the bottom rail 16 excavated. This is due to the fact that the control lever 3 with the one end of the lever 32 of his body 30 trained control contour so on the associated control surface 22 of the blocking element 2 acts to keep it in a pivotal position in which the locking area 26 . 27 of the blocking element 2 out of engagement with the lower rail hole pattern 160 the bottom rail 16 stands. The comfort lever 4 lies with his lever end 42 at the barrier ramp 23 of the blocking element 2 and thus gives the locking of the backrest 13 free.

The position of the control lever 3 in which this one with the at its one lever end 32 trained control contour on the associated control surface 22 of the blocking element 2 acts, corresponds to the normal position or normal pivot position of the control lever 3 into which he uses the rocker 6 acting torsion spring 90 is elastically biased. In this state, the control lever engages 3 with its control contour provided with a lever end 32 at the transport area of the control curve 22 of the blocking element 2 on, so that with a displacement of the seat frame in position in use befindlicher backrest 13 the glider 1 and thus the position memory 1 . 2 in total by the control lever 3 is taken.

As a result, when the backrest is in the upright position of use 13 the position memory 1 . 2 every time you readjust the seat-long position of the seat frame via the control lever 3 taken along, so by the location of the position memory 1 . 2 Defined memory position is in each case adapted to the current comfort position of the seat frame in the rail longitudinal direction L. This is possible because the blocking element 2 when in upright position befindlicher backrest 13 by means of the control lever 3 from the Unterschienenloch picture 160 the bottom rail 16 is dug.

In the 23 and 24 is the removal of the blocking element 2 of the position memory 1 . 2 after folding the backrest 13 towards the seat 12 the seat frame shown schematically. Here, the acts in the 2 and 3 illustrated Bowden cable train 81 with his traction device 811 on the pulley 7 and those with the pulley 7 connected seesaw 6 one, which is about the bearing axis 9 rotate. By the on the seesaw 6 arranged control cam 60 becomes the control lever 3 over his at the end of the lever 31 arranged trajectory 33 and due to its slot connection 34 with the bearing axis 9 raised, thereby disengaged from the control surface 22 of the blocking element 2 brought and thus no longer acts on these. This will be the blocking element 2 under the action of the bias of the coil spring 21 formed elastic element pivoted counterclockwise in such a way that the locking area 26 . 27 of the blocking element 2 the tendency is in the under-the-rail hole picture 160 the bottom rail 16 intervene.

The type of engagement of the locking area 26 . 27 of the blocking element 2 in the Unterschienenloch picture 160 the bottom rail 16 depends on the locking position of the locking pins 51 . 52 . 53 the locking device 5 in terms of the lower rail hole image 160 the bottom rail 16 from. While in the latching position according to 17 the catch 26 and the locking leg 27 of the blocking element 2 in a hole 161 of the lower rail hole picture 160 engage, engages in the latching position according to 18 only the catch 26 in a hole 161 of the lower rail hole picture 160 a, during the locking leg 27 on a bridge in between 162 rests. Due to the pivoting of the locking element according to the invention 2 at the level of the lower rail hole picture 160 However, in both cases, it is a stable locking position, as the force is introduced into the lower rail 16 below the pivot point of the locking element 2 lies, so that no loss of the stored position by unscrewing the locking element 2 from the bottom rail 16 when striking the stop surface 500 of the guide piece 50 the locking device 5 to the position memory 1 . 2 is to be feared.

Here is the stop surface 500 on the guide piece 50 the locking device 5 so executed that the blocking element 2 due to the force components in the bottom rail 16 is pressed. In addition, the anchoring or locking of the locking element is supported 2 with the lower rail hole picture 160 the bottom rail 16 through the use of a blocking element 2 made of sintered material, the essential advantage of which is that the contour of the lower rail hole pattern 160 the bottom rail 16 can be reproduced.

In the in 23 shown position when depositing the locking element 2 in the Unterschienenloch picture 160 the bottom rail 16 sits the lever end 42 of the comfort lever 4 still on the barrier ramp 23 of the blocking element 2 and thereby gives the locking of the backrest 13 free.

25 shows that in the Unterschienenloch picture 160 the bottom rail 16 deposited blocking element 2 that with his catch 26 and optionally its locking leg 27 in a hole 161 of the lower rail hole picture 160 the bottom rail 16 engages and thus secures the memory position. Will after the position memory is stored 1 . 2 by locking the locking element 2 with at least his catch 26 in a hole 161 of the lower rail hole picture 160 the bottom rail 16 the seat frame to facilitate the boarding in the direction of 15 Registered arrows EP moved forward in an entry aid position, so the pivots Easy-handle 4 according to the in 25 registered arrow against the direction of movement of the seat frame to the rear, so that the connection of the comfort lever 4 over the trigger Bowden cable 82 with the locking lever 19 the backrest 13 in its folded-forward position according to the schematic representation according to 1c is locked.

Is the position memory 1 . 2 locked in the seat longitudinal position set as memory position and is the seat frame with folded backrest 13 pushed back to a resting position after exercise of the boarding assistance function in the direction of the arrow RP, so approaches the seat frame or seat rail fixed bracket H pivotally hinged comfort lever 4 the position memory 1 . 2 , At the same time the comfort lever slides 4 with his lever end 42 over the barrier ramp 23 of the locking element 2 , where the comfort lever 4 in a clockwise direction about the bearing axis 9 is pivoted that he has a pulling force on the soul of the trigger Bowden cable 82 exercises, with the locking lever 19 the locking mechanism of the folded backrest 13 is connected so that it the locking mechanism according to the schematic representation according to 1e unlocked.

As a result, the seat frame, after approaching the memory position by folding up the backrest 13 be locked immediately in the reached seat longitudinal position. It is important that first the lifting of the blocking element 2 from the Unterschienenloch picture 160 the bottom rail 16 and then or after the full engagement of the control lever 3 in the driving contour of the locking element 2 he follows.

Thus, the backrest 13 be folded into its upright position of use, the control lever 3 under the action of the torsion spring 90 returns to its normal position, as the Betätigungsbowdenzug 81 over which the control lever 3 with the backrest 13 coupled, no longer counter to the action of the legs of the torsion spring 90 on the control lever 3 acts. This causes the control lever 3 with its control end forming a lever end 32 a stop with the associated control surface 22 of the control lever 2 and lifts the locking area 26 . 27 of the blocking element 2 against the action of the blocking element 2 against the glider 1 biasing coil spring 21 from the Unterschienenloch picture 160 the bottom rail 16 out. The memory device is then again in the in 14 shown state in which the position memory 1 . 2 after a displacement of the seat frame with in-use position, upright backrest 13 can be taken to readjust a memory position.

Simultaneously with the unlocking of the locking mechanism for the folded backrest 13 the counter-attack arrives 500 of the guide piece 50 the locking device 5 in abutment with the associated stop surface 24 of the locking element still in the locked state 2 , so that the seat frame according to the schematic representation according to 1d is stopped after the comfort lever 4 when driving over the locking ramp 23 has been pivoted.

With the intervention of the control lever 3 in the control curve 22 of the blocking element 2 is the one with the seesaw 6 Connected unlock Bowden cable 84 attracted and causes actuation of the locking device 5 that the longitudinal adjustment of the rail longitudinal guide 15 . 16 locks. Will the backrest 13 completely pivoted around, so locks the backrest 13 again by means of the locking member 17 in the hinge fitting 14 in the originally set upright position accordingly 1a ,

The when approaching the memory position by the counter-stop 500 on the stop surface 24 of the blocking element 2 exerted forces are over the main body 20 of the blocking element 2 and the locking area 26 . 27 directly into the bottom rail 16 derived, allowing the storage of the locking lever 2 serving gliders 1 and the associated sliding guide 100 for the glider 1 because of the low stress cost and weight saving can be made of plastic. In addition, by the immediate introduction of the blocking element 2 attacking forces in the bottom rail 16 the at the base body 10 of the slider 1 trained bearing axis of the guide pin 101 . 102 relieved. The remaining residual forces, nevertheless, on the glider 1 act, press this against the bottom rail 16 so that even those forces in the bottom rail 16 be derived.

Due to the inclined course of the stop surface 24 of the blocking element 2 with respect to the rail longitudinal direction L (obliquely at an angle of less than 90 °) acts on the guide piece 50 trained counter-attack 500 in addition to a lifting of the engagement area 26 . 27 of the blocking element 2 from the respective hole 161 of the sub-rail hole picture 160 the bottom rail 16 opposite.

1

skid

2

blocking element

3

control lever

4

Easy-handle

5

Locking device

6

seesaw

7

pulley

9

bearing axle

10

body of the slider

11

Seat base

12

seat

13

backrest

14

joint fitting

15

upper rail

16

bottom rail

17

locking member

18

Entry aid lever

19

locking lever

20

body of the blocking element

21

elastic Element (screw driver)

22

control surface of the blocking element

23

locking ramp

24 25

stop surfaces

26

locking lug

27

latching leg

28 29

Link guide sections

30

body of the control lever

31 32

lever ends of the control lever

33

cam

34

Slot (storage) of the control lever

40

body of the comfort lever

41

first Thighs of the comfort lever

42

lever end of the first thigh

43

second leg

44

connecting leg

45

drilling

46

drilling

50

guide piece the locking device

51-53

locking pins

54

Extraction tool

55

torsion spring

56

Entrieglerblech

57

coil springs

60

control cam

61, 62

bearings the seesaw

63

web

64

Scalloped web

65

connecting web

70

cable groove

81

actuating Bowden

82

Auslösebowdenzug

83

Bowden

84

Entriegelungsbowdenzug

90

torsion spring

100

slide

101 102

guide pins

10

Lower rail hole pattern

161

hole

162

web

810

Bowden sheath

811

soul of the actuating bowden cable

812

Bowden support

e

Easy Entry Control (Easy-entry component)

EP

Easy Entry position

H

bracket

L

Rail longitudinal direction

RP

detent position

S

seating system

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• WO 00/5002 A1 [0002]
• - DE 10057721 A1 [0015]
• - DE 102005020696 A1 [0017]

Claims (15)

Motor vehicle seat with - one along a rail longitudinal guide ( 15 . 16 ) adjustable seat base ( 11 ), on which a backrest ( 13 ) hinged and pivotable towards a seat surface ( 12 ) of the seat base ( 11 ) is foldable, - a locking device ( 5 ) for locking the rail longitudinal guide ( 15 . 16 ) in an adjustable seat longitudinal position, - an entry aid (E), with the locking device ( 5 ) is unlocked when the backrest ( 13 ) on the seat ( 12 ) and a memory device for setting and retrieving a memory position with a position memory ( 1 . 2 ), which is an adjustment means ( 1 ) for setting the memory position in the rail longitudinal direction (L) of the rail longitudinal guide ( 15 . 16 ) and a pivotable with the adjusting means ( 1 ) connected blocking element ( 2 ) under the influence of a control ( 3 . 6 ) in a locking rail ( 16 . 160 ) for locking the set memory position and for setting a memory position from the locking rail ( 16 . 160 ) is swung out, - wherein the control ( 3 . 6 ) with an entry aid (E) triggering entry aid lever ( 18 ) is operatively connected to the motor vehicle seat, characterized in that the control element ( 3 . 6 ) a control lever ( 3 ), which translationally adjustable on a control surface ( 22 ) of the blocking element ( 2 ), and one with the control lever ( 3 ) cooperating rocker ( 6 ), which around a bearing axis ( 9 ) and with the access aid lever ( 18 ) is operatively connected. Motor vehicle seat according to claim 1, characterized in that the control lever ( 3 ) perpendicular or at an obtuse angle to the longitudinal extent of the control surface ( 22 ) of the blocking element ( 2 ) is movable. Motor vehicle seat according to claim 1 or 2, characterized in that the control lever ( 3 ) is translationally adjustable by means of a lever or camshaft assembly. Motor vehicle seat according to claim 3, characterized in that the control lever ( 3 ) on a bearing axis ( 9 ) plugged slot ( 34 ) and cooperating with the lever arrangement control cam ( 35 ) having. Motor vehicle seat according to claim 4, characterized in that the rocker ( 6 ) of the control ( 3 . 6 ) one with the control cam ( 35 ) of the control lever ( 3 ) cooperating control cam ( 60 ), such that upon pivoting of the rocker ( 6 ) on the control cam ( 35 ) of the control lever ( 3 ) acting control cam ( 60 ) the control lever ( 3 ) translationally with respect to the control surface ( 22 ) of the blocking element ( 2 ) emotional. Motor vehicle seat according to claim 5, characterized in that the rocker ( 6 ) via a trigger Bowden cable ( 81 ) with the access aid lever ( 18 ) connected is. Motor vehicle seat according to claim 6, characterized in that the tripping Bowden cable ( 81 ) with a rope support ( 70 ) a pulley ( 7 ) connected to the bearing axis ( 9 ) and with the rocker ( 6 ) is coupled. Motor vehicle seat according to claim 7, characterized in that the cable support ( 70 ) for the trigger Bowden cable ( 81 ) eccentric to the bearing axis ( 9 ) is formed running. Motor vehicle seat according to at least one of the preceding claims, characterized in that the geometry and arrangement of the cable support ( 70 ) of the pulley ( 7 ), the rocker ( 6 ), a Entrieglerhebels the locking device and the Entrieglerhebel actuated, with the rocker ( 6 ) operatively connected actuating lever are coordinated such that the position memory ( 1 . 2 ) in the locking rail ( 16 ) is anchored before the rail longitudinal guide ( 15 . 16 ) is released for adjusting the vehicle seat. Motor vehicle seat according to at least one of the preceding claims, characterized in that the backrest ( 13 ) in her on the seat ( 12 ) folded position by means of a locking mechanism can be locked, which by means of a comfort lever ( 4 ) is unlocked, which is actuated when approaching the memory position and with the locking mechanism of the backrest ( 13 ) is coupled, so that the locking mechanism is unlocked when approaching the memory position. Motor vehicle seat according to claim 10, characterized in that the comfort lever ( 4 ) via a trigger Bowden cable ( 82 ) with the locking mechanism of the backrest ( 13 ) is coupled. Motor vehicle seat according to claim 10 or 11, characterized in that the comfort lever ( 4 ) pivoting on the control ( 3 . 6 ) receiving bearing axis ( 9 ) is stored. Motor vehicle seat according to at least one of the preceding claims, characterized in that the bearing axis ( 9 ) Is supported on a displaceable together with the seat frame in the rail longitudinal direction (L) bracket (H). Motor vehicle seat according to at least one of the preceding claims 10 to 13, characterized in that a first lever end ( 42 ) of the comfort lever ( 4 ) when approaching the memory position on a locking ramp ( 23 ) of the blocking element ( 2 ) of the position memory ( 1 . 2 ), whereby the comfort lever ( 4 ) is actuated to unlock the locking mechanism. Motor vehicle seat according to at least one of the preceding claims 10 to 14, characterized in that the comfort lever ( 4 ) Is U-shaped and a first, with the tripping Bowden cable ( 82 ) connected legs ( 41 ), a second leg ( 41 ) whose lever end ( 42 ) with the locking ramp ( 23 ) of the position memory ( 1 . 2 ) and a connecting leg ( 44 ) and that the first or second leg ( 41 . 43 ) by one at the upper edge of the upper rail ( 15 ) arranged cutout is performed.