Title of Invention

A LONGITUDINAL ADJUSTER FOR A VEHICLE SEAT

Abstract

The invention relates to a device for adjusting a vehicle seat in the longitudinal direction, said seat comprising a freely pivoting backrest. The inventive device comprises a first seat rail, a second seat rail in relation to which the first seat rail can be displaced in the longitudinal direction, and a memory element, which is associated with the first seat rail and interacts with the second seat rail. Said memory element is used to store an adjusted longitudinal position of the seat, the seat leaving said longitudinal position when the backrest is pivoted, and returning to the said position when the backrest is pivoted in the reverse direction. The inventive device also comprises a displacement sensor (21) which can interact with the second seat rail, and a control signal emitter (41) which can be displaced in relation to displacement sensor (21), the relative movement of said signal emitter in relation to the displacement sensor (21) reproducing, from a starting position, the longitudinal displacement carried out. The control signal emitter (41) is subjected to a control torque, at the latest once the stored longitudinal position of the seat has been reached, and then controls at least at least one blocking element (73) which interacts with the second seat rail by means of a control spring (51). A control area (45) is arranged between the control signal emitter (41) and the control spring (51), which guides the control signal emitter (41) and which stores the control spring (51).

Full Text

The invention relates to a longitudinal adjuster having the features of the preamble of claim 1. WO 03 062012 AI diseloses a longitudinal adjuster of this type. The mention de\ lee is connected through the upper side of the first seat rail to an actuation device which is mounted on the first seat rail and which actuates the memory de\ ice for the purpose of reselling. The control spring is mounted on the control signal generator. A longitudinal rib. running parallel to the rotational axis of the displacement measuring device, of the control signal generator and a corresponding bulge in the control spring ensure, as a floating bearing, that there is a rotationally fixed connection with the possibility of displacement along the rotational axis of the displacement measuring de\ ice. These components are costly to manufacturing owing to the specific shaping and the high demands in terms of dimensional accuracv. When the stored seat longitudinal position is reached, the actuated locking element pivofs out and drops into the second seat rail. A small relative movement of the seat rails is necessary to release and pivof in. I he invention is based on the object of improving a longitudinal adjuster of the type mentioned at the beginning, in particular of simplifving its manufacture. This object is achieved according to the invention by means of a longitudinal adjuster having the features of claim I. Advantageous refinements are the subject matter of the subclaims. Since a control bearing which guides the control signal generator and supports the control spring is mounted between the control signal generator and the control sprint, the bearing function and guiding function arc separated from one another. This permits simplilled support of the control spring and geometrically simplified manufacture thereof. The quality of the guiding between the control signal generator and control bearing is independentof the position ii\ the control signal generator during its movements. If the control bearing is manufactured from plastic, the cost of manufacturing it are insignificant given the advantages obtained. The control bearing preferably encloses the control signal generator, for example by virtue of the fact that the control bearing is embodied as a bushing, and is therefore arranged radially outside it. The control bearing preferably guides the control signal generator linearly along the rotational axisof the displacement measuring device, that is to say axially. preferably by virtue of the fact that the control signal generator is seated in the control bearing so as to be slidable relative to the control bearing by means of a toothing, for example a nofch toothing, in a rotationally fixed and axial fashion, i.e. perpendicularly with respect to the toothed profile of the toothing. The control signal generator in turn preferably runs as a spindle nut on a spindle of the displacement measuring device, along is rotational axis (axially) so that the relative movement between the displacement measuring dev ice and control signal generator occurs in a v cry small space and precise storage of the travel which is covered from the stored seat longitudinal position is possible. The axial length of the control bearing is matched to the axial component of the maximum travel covered by the control signal generator. The control bearing supports the control spring in a defined wav. preferably by means of depressions and or elevations, which are provided on the outside of the control bearing in the preferred arrangement, and are embodied in terms of their dimensions and shapes to match the control spring. Preferbly. the control spring surrounds the control bearing virtually completely which ensures a firm fit and concentrates the existing prestress of the control spring onto the profruding parts of the control spring. At the same time the control spring preferably has at least one control tongue which profrudes from the control bearing with its tree end which is short compared to the overall length, the prestress thus occurring with a short lever arm. In the memory device which is used according to the invention, a measuring region, a load region and a control region are separated as far apart from one another as possible so that the forces which are neccssayr for the locking effect between the seat rails, i.e. the forces which arc necessary to stop the movement of the first seat rail, are nof absorbed by the means for sensing the travel in a measurement region but rather by a separate, actuated locking element in a load region so that components which are cost effective to manufacture and are made of plastic can be used for the control region and measurement region, while metal components are used for the load region. The- control region does nof have to be completely integrated into the measurement region but rather can be separated from it. which increases the variety of actuation possible. The actual locking of the longitudinal adjuster is to be differentiated from the locking elements in the load region of the memory device, said locking being carried out by means of a separate locking device which is designed to absorb crash forces, and unlocks the longitudinal adjuster when it is triggered directly, and locks the longitudinal adjuster again in the newly set seat longitudinal position. This locking device is in principle independent of the memory device, but generally couples indirectly by means of the triggering of the longitudinal adjuster. I or example, there can be a coupling for a reset of the memory device. A control device is preferably provided which resets the memory device when the longitudinal adjuster is directly triggered, in order to permit a new seal longitudinal position to be stored, the memory device being decoupled without resetting when the backrest pivots freely, so that the sel seal longitudinal position remains stored and can be found again. The actuation device can be mounted above the memory device on the first seat rail, that is to say in the direct vicinity of the memory device, which simplifies access to the control region and the resetting of the memory device. In this context, the actuation device can at the same time form a component of the unlocking system of the longitudinal adjuster by virtue of the fact it supports components which are necessary for it. for example. When pivoting free, the actuation device can then preferably actuate the locking device in order to unlock it. Since the actuation device is arranged with limited mobility relative to the first seat rail in the longitudinal direction, in particular at the start and at the end of the free pivoting movement, the actuation device, together with the interfaces to the memory device and the locking device. can also move the memory device itself, relative to the first seat rail, w hen there is a preferred connection of the memory device to the actuation device. As a result, it is possible, for example, for a locking element which is located in a locking fashion bearing against the second seat rail to become detached from the second seat rail. The actuation device is preferably supported on the first seal rail by means of a spring, the spring making available both the travel for movement. for example from an home position, and ensuring that there is a restoring force into the home position. The force for mo\ ing the actuation device preferably engages on the actuation device by means of a Bowden cable, this force being preferablx applied by means of the freely pixofing backrest as attractix c force in the Bow den cable. 1 he mxention is preferably used for vechicle seats of two-door mofor chicles with freely pivofable backrests, but it can also be emploxed in ofher x chicle scats. BRIEF DESCRIPTION OF THE ACCOMPANVING DRAWINGS The invention will be explained in more detail below xxhh reference to an exemplarv embodiment which is illustrated in the drawing, and in which: figure 1 is an exploded illustration of part of the exemplarv embodiment, the direction of travel pointing to the left. figure 2 is a perspective partial view of the exemplar) embodiment, the direction of tray el pointing to the right. figured is a perspective view of the displacement measuring device. control signal generator, control bearing and control spring. figure 4 is a perspective view of the displacement measuring device and control signal generator. figure 5 is a perspective view of the control spring. figure 6 is a schematic illustration of a vehivle seat. figure is a schematic illustration of the inclination of the backrest, the relative position of the seat rails, the positioning letter which interacts with the horizontally sectioned, second seat rail, and the latching plate which interacts with the vertically sectioned, second seat rail, in each case at the start of the free pivoting movement and in the memo position. (I) indicating the position before the pivoting of the backrest, and (2) indicating the position with the backrest pivoted forward and the actuation device pnoled back. figure 8 is a schematic illustration corresponding to figure . in each case as the vehicle seat is slid forward, where ( 1 ) indicates the position before the sliding movement and (2) indicates the position with the vehicle seat slid forward. figure 9 is a schematic illustration corresponding to figure xxx in each case as the vehicle seat is slid back, where ( I ) indicates the position before the locking of the memory device, and (2) indicates the position with the memory device locked, and figure In is a schematic illustration corresponding to figure", in each case at the end of the free pivoting movement, where (I) indicates the position before the pivoting of the backrest and (2) indicates the position with the backrest pivoted back and the actuation device slid forward. vehicle scut 1 for a two-door motor vehicle is longitudinally slidable in its entirety by means of a longitudinal adjuster 3. and can therefore assume various scat longitudinal positions. The backrest 5. mounted with an adjustable angle of inclination on the seal part 4. of the vehicle seal 1 is freely pivotable. i.e. can be folded forward, in order to permit access to the rear seats. In order to obtain the widest possible access, the longitudinal adjuster 3 is unlocked at the same lime during the tree pi\oimg movement of the backrest 5 so that the vehicle seat 1 can be slid forward. In order to return into the home position, the vehicle seat 1 is firstly slid back into the previously assumed seat longitudinal position where it is locked, and the backrest 5 is then pivoTed back. A memorY device 11 is provided for the storage of this previously assumed scat longitudinal position. The memory de\ice 11 largely corresponds in its design and its method of functioning to that which is described in WO 03062012 M the disclosure content of which is express!} included here. The memory device 11 is arranged within an inner installation space in a first seat rail 13 which serves as one of two upper rails of the longitudinal adjuster 3. The first seat rail 13 which is fixed to the seat structure can be slid in the longitudinal direction of theyehicle seat 1 in relation to a second seal rail 15 which is fixed to the vehicle structure and series as one of two lower rails of the longitudinal adjuster 3 and can be locked by means of a locking device to. from this locking device 16.just one both profects upward out of the first seat rail 13 in figure 2. The memory device 11 has a housing 17 which has walls which are at least largely continuous in the upward and forward direction, but is manufactured so as to be open in the downward direction and is closed by a screwed-on or reived cover 19. that longitudinal side of two longitudinal sides of the housing 17 which is completely opened is referred to below ;is the outward pointing side, while the longitudinal side which lies opposite is referred to as the mwardK pointing side. The memory device I 1 has a measuring region, a control region and a load region. A measuring displacement device 21 which is provided with a rotational axis 23 which defines an axial direction, is made of w ire and produdes at the axial ends of the displacement measuring device 2 I is provided in the measuring region. By means of this rotational axis 23. the displacement measuring device 21 is mounted in the tipper wall of the housing 1" or in the cover 19 so as to be rotatablel about the rotational axis 23. I he displacement measuring device 21 which is ofherwise embodied in one piece has. along the rotational axis 23 when viewed from below, a spindle 25 which is adjoined by a stop block 2- which is provided with an annular recess.The stop block 27 has. in the region of the end side which is pointed downward to the spindle 25. a first stop face 2° which is arranged so as to extend radially outwards and perpendicularly to this end side (axially) and is embodied as a shoulder in the circumferential direction. On the end side of the stop block 27 which points upward, there is an adjoining large gearwheel 31 which partially engages offer the stop block 27 in the radial direction. On the end of the rotation axis 23 which profrudes beyond the large gearwheel 31. a reset spring 33. which is embodied in a helical shape, is also mounted, the inner end of which reset spring 33 is supported fixedly on the bearing axle 23 and its outer end is supported fixedly on the housing 17. A running wheel 35 is rotatably mounted, as a further component of the measuring region, on a bearing axle 37 which is parallel to the rotational axle 23. The bearing axle 3~ is guided at one end in the cover 19 in a bearing link 38 and at the other end in the housing 1" in an identically curved groove. A small gearwheel 39. which meshes with the large gearwheel 31. is fitted to. or integrally formed with, the upper end side of the gearwheel 35. A control signal generator 41 which is embodied as a spindle nut is screwed onto the spindle 25. Depending on the desired orientation of the memory device 11 with respect to the longitudinal direction of the vehicle seal I. the threads of the spindle 25 and control signal generator 41 are right-handed or left-handed threads. The control signal generator 4 I has. on its end side, which points upward and towards the stop block 27. a second stop face 43 which is designed, with respect to its orientation, i.e. extending axially and radially. and with respect to its dimensions, for interaction with the first stop face 29. The external lateral face of the control signal generator 41 is provided with a toothing, for example a notched toothing, by means of which a bushing-shaped control bearing 45 which is fitted on its inner lateral surface with a matching notched toothing is seated on the control signal generator 41 so as to be rotationally fixed and axially slidable in relation to the control signal generator 41. For clearly defined assemhly it is possible for one or more teeth to be absent or for a tooth which has double the width or more to be provided. The control bearing 45 has on its outside in a partial region depressions which run in the circumferential direction and arc offset with respect to one another, a short elevation extending in the axial direction in a further partial region, and two depressions which run again in the circumferential direction and are offset with respect to one another in a third partial region. I his design of the control bearing 45 serves to provide dellned support and to entrain a control spring 51 in a rolalionally fixed and axialk nonslidable fashion. The control spring 51 which is punched out of spring sheet steel and is shaped relative!v easily encloses the control bearing 45 virtually completely in the circumferential direction. On the outwardly pointing side of the housing xxx the end of the control spring 51 is divided into three control tongues 53 which prodrude from the control bearing 45 with their free end. which is short compared to the overall length, and they are ofherwise arranged in the three depressions. In the center region of the control spring 51. an axial cutout, which is short compared to the axial dimension, is provided for holding the elevation of the control bearing. Theend of the control spring 51 which points towards the inwardly pointing side is composed of a section which is closed in the shape of a beni clip and is referred to below as control bracket 55 which is seated in the two depressions, and an individual supporting tongue 57 which profrudes from the control bearing 45. in order to support the control bearing 45 and the control signal generator 4 I on the housing 17. In the control region, a control bolt nl which is parallel to the bearing axle 3" and to the spindle 25 is rofalafbly mounted in the housing I ~" and in the cover 19. A radially profruding switching lever 63. to which a running w heel lev er 65 is connected in an articulated fashion, is iniegrall} formed on the control boll 61. The running wheel lever 65 is penetrated by the bearing axle 37. A contact pressure spring 69 which is wound around the control bolt 61 acts on the switching lever 63 in such a wav that the running wheel 35 is pressed against the lower rail 15 by meansof the running wheel lever 65. The control bolt of has at the front end which i: is mounted in the housing 17 a profiled control receptacle d" which is accessible from the upper side of the memory device 11. In the load region, three positioning le\ers. referred to he low as locking elements 73. are mounted so as to he capahle of pi\ofmg one oxer the oilier on a bearing holt 71 which is parallel to the spindle 25 and mounted in the housing 17 and the cover 19. The three locking elements 73 each have. at their end pointing forwards, a control finger 75 which bears on one side against a control tongue 53 and on the ofher side on the control bracket 55 of the control spring 51. At the opposite end pointing towards the rear, the locking elements 73 each ha\e a guide link " which is cur\ed about the bearing bolt 71. The guide links--- receive a common guide holt 79 which is arranged parallel to the hearing bolt 71 and is secured to the housing 17.Eachh locking element 3 has a locking nose Nl which points outwards towards the opened side wall oi the memory device 11. In the process, the locking noses 81 of the individual locking elements are arranged at a different radial distance from the hearing bolt 71. the locking nose 81 of the central locking element 73 being at the smallest radial distance, and the locking nose 81 of the lowest locking element 73 being at the largest radial distance. The control spring 51 which is supported by means of the supporting tongue 57 prestresses the positioning lexers 73 inwards so that the locking noses SI are normally arranged in the interior of the housing 17. The memory device 11 and the locking device 16 are actuated by a common actuation device 101. The actuation device 102| is seated on the first seat rail 13 with restricted mobility in the longitudinal direction of the vehicle seal 1. and is supported at its rear end on the first seal rail 13 by means of a compression spring 102 and a support clip 104. The 12 support clip 104 is permanent!) conneclcJ to the first se;il rail 13 here and has a box-shaped receptacle for the compression spring 102. The memory device 11 is attached to the actuation device 101 through suitable openings in the first seat rail 13. and can he actuated by means of the control bolt dl. while the actuation device 101 acts on the locking device 16 by means of a lever arrangement 106. The actuation device 101 can be activated, on the one hand, for direct triggering of the longitudinal adjuster 3 by means of' a longitudinal adjuster triggering lever 110 which profrudes from a horizontally arranged transverse tube 112 w hich is rofatably mounted on the triggering device 101 and is delachably connected to the lever arrangement 106. The longitudinal adjuster triggering lever 110 extends as far as the front end of the seal part 4 and is provided there with a handle which is accessible to the vehicle occupant. On the ofher hand, w hen the backrest 5 pivofs freely the triggering device 101| can be activated by means of a backrest release lever 114. arranged on the outer side of the backrest 4. in order to indirectly trigger the longitudinal adjuster 3. In the process, the backrest release lever 1 14 acts by means of a Bow Jen cable 1 Id on the triggering device 101 in a was which is described in WO03062012A1 On each side of the vehicle seat, the locking device Id is composed essentially of a multi-tooth latching plate 118 which is connected to the bolt which projects out of the first seat rail 13. and a row of latches I2 which can be embodied as windows or tooth gaps. With this locking device 16. which is known per se. the locking takes place in small increments of seal longitudinal positions. In the position of use of the vehicle seal 1. the longitudinal adjuster 3 is locked. Within the memory Jev ice 1 1 the control signal venerator 41 is l -. located ;it the upper end of the spindle 25 and rests with the second stop face 43 against the first face 29 of the stop block 27 of the displacement measuring device 21. hut without the end sides of the control signal generator 41 and of the stop block 27 touching one another. The contact pressure spring 69 presses the running wheel 35 through an openingof the first rail 13 so that it abuts against the second seat rail 15. This longitudinal position which is set is referred to below as memo position When the backrest 5 pivofs freely. among ofher components the longitudinal adjuster 3 is also released on both sides, i.e. in the respective locking device 1 o the latching plate 118 is pressed out of the latches 120 (figure 7). In the process as the backrest 5 pivofs forward owing to the traction on the Bowden cable 116. the actuation device 101. and the memory device 11 connected to it. are additionally pulled out of a home position and dow nward in the longitudinal direction, as a result of w hich the compression spring 102 is stressed. Owing to the small movementof the memory device 11. which corresponds to the arrival at the memo position which is described below, the locking elements 73 firstly pivof out. but pivof in again (figure 8) as the movement begins in the forward direction. On both sides of the vehicle seat 1. the first seat rail 13 can then be slid forwards relative to the second seal rail 15. in the longitudinal direction of the vehicle seat 1. Owing to the relative displacement between the first seat rail 13 and the second seal rail 15. the running rail 35 runs along the second seat rail 15 owing to friction. As a result of the small gearwheel 39. the large gearwheel 3 1 is rofated so that the displacement measuring device 21 is driven. The control signal generator 41 which is secured in the circumferential direction by means of the control spring 51 and the control bearing 45 runs here on the spindle 25 and moves in a downwardly guided linear fashion within the control bearing 45. The travel carried out of the vehicle seat 1 is directlx related, by means of the transmission ratio between the two gearwheels 39 and 3 1 and the geometric dimensioning of the spindle 25. to the tray el of the control signal generator 41 along the displacement measuring device 2 1. 1 he length ol' the spindle 25 is correspondingly matched to the maximum displacement travel. When the vehicle seat 1 is slid hack, the control signal generator 41 moves again onto the stop block 27. As soon as the second slop face 43 moves into abutment against the first stop face 29. a control torque which attempts to rofate the control signal generator 41 further is produced. The control spring 51. which presses with its control tongues 53 onto the control finger 75 of the latching elements 73. is acted on via the control bearing 45. The prestress of the control tongues 53 is active in a verv effective wav here owing to the lever arm which is defined hx the short free end of" the control tongue 53 which profrudes from the control hearing 45. The latching elements 73 thus pivof outwards, the pivoting movement of the latching element 73 being restricted by the relative movement of the guide link 77 and of the guide bolt 79 The locking noses 81 pass through windows in the upper rail 13. The kicking nose 81 of at least one locking element 73 moves into a latch 120 on the second seat rail 15 so that the relative movement ol'the first seal rail 13 with respect to the second seat rail 15 is stopped hx this lock (figure 9). The vehicle seal 1 has thus reached its memo position again. As a result, the locked locking element 73 can become released again, and in order to cope with cases in which the latching plate 118 is nof precisely aligned with the latches 120 and must slide after the engagement, that is to sax the locking dex ice Id can become unlocked onlx after a delax. the tension of the compression spring 102 is released as the backrest 5 pivofs back. iu i.e. when the Bowden cable 11 6 is without stress. 1 he actuation device 101is thus pushed forward into its home position. The locked locking element73 comes free so that the control spring 51 can phof all the locking elements 73 in to the interior of the housing 17 again by means of the control brackets 55. In addition, the latching plate 118 can drop into the latches 12') (figure l0). The longitudinal adjuster 3 is locked so that the v chicle seat 1 is available again for use. 1 he memo position can be reset, for example during normal longitudinal setting of the vehiele seat 1 or independently thereof, i.e. a reset of the mrmorv device 1 1 can take place. For this purpose, the control bolt 61 is rofated, as a result of which the running rail 35 is lifted off from the second seat rail 15 by movement of the bearing axle 37 the small gearwheel 39- remaining in engagement with the large gearwheel 31. The reset spring 33 driv es the displacement measuring device 2 1 so that if the control signal generator 4 1 is nof vet at the upper end of the spindle 25 it is rofated upwards until the stop faces 29 and 43 come into abutment, but nof the end sides of the control signal generator 41 and of the bearing block 27. After the control bolt 6 1 has been released, the contact pressure spring 69 positions the running wheel 35 on the second seat rail 15 again and holds it w ithout plav The new memo position is thus stored. List of reference numbers 1 Vehicle seat Longitudinal adjuster 4 Seal part 5 Backrest 1 1 Memory device 13 F irst seat rail 1 5 Second seat rail 10 1 .ocking device 17 Housing 19 Cover 21 1 )isplacemeni measuring device 23 Bearing pin 25 Spindle 27 Stop block 29 1 irst stop face 3 1 Large gearw heel 33 Reset spring 35 Running w heel 37 Bearing axle 38 Bearing link 39 Small gearwheel 41 Control signal generator 43 Second stop face 45 Control bearing 5 1 Control spring 53 ( ontrol tongue 55 Control bracket r 57 Supporting tongue 61 ( onlrol holt 63 Sw itching lever 65 Running wheel lever 67 ( 'ontrol receptacle 69 Contact pressure spring 71 Bearing bolt 73 Locking element 75 Control finger 77 Guide link 79 (Guide bolt 81 locking nose 101 Actuation device 102 (impression spring 104 Supporting bracket 106 lev er arrangement 1 10 Longitudinal adjuster triggering lexer 1 12 Transv erse tube 1 14 Backrest release lexer 116 Bow den cable 118 1 .atehing plate I2o Latch i ■"■. WE CLAIM: 1. A longitudinal adjuster for a vehicle seal (1) having a free ly pivofable back rest (5). having a first seal rail ( 1 3). a second scat rail ( 15). in relation to which the first scat rail (13) can he slid in the longitudinal direction, and a memor\ device (11) which is assigned to the first seat rail ( 13). interacts with the second scat rail (15) and stores a set longitudinal seal position which can he left by means of a longitudinal displacement of the vehicle scat (1 ) when the back rest (5) pivofs freely. and resumed when the haekrest (5) pivofs back, the memory device (11) Inning a displacement measuring device (21) which can he operatively connected to the second seat rail (15) and can then rofate ahoul a rotational axis (23). and a control signal generator (41 ) which can he mm ed in relation to the displacement measuring device (21 ) and whose relative movement with respect to the displacement measuring device (21) from a home position represents the longitudinal displacement which has occurred, and said control signal generator (41) experiences, at the latest when the stored longitudinal seat position is reached, a control torque and then actuates. by means of a control spring (51 ). at least one locking element (73) which interacts with the second seat rail (15). characten/cd in that a control hearing (45) is arranged hetwecu the control signal generator (41) and the control spring (51). said control hearing (45) guiding the control signal generator (41 ) and supporting the control spring (51 ). 2. The longitudinal adjuster as claimed in claim 1. eharactcn/ed in that the control bearim: (45) encloses the control signal 'jenerator (41). 3. The longitudinal adjuster as claimed in claim 1 or 2. characlen/ed in that the control bearing (45) guides the control signal generator (41 ) along the rotational axis (23) of the displacement measuring device (21). 4. The longitudinal adjuster as claimed in claim 3. characteri/ed in that the control signal generator (41) is seated in the control bearing (45) so as to be rotational!) fixed and slidable retain e to the control bearing (45) along the rotational axis (23) by means of a toothing. 5. The longitudinal adjuster as claimed in one of claims 1 to 4. characteri/ed in that the control signal generator (41 ) runs as a spindle nut on a spindle (25) of the displacement measuring device (2 1 ). along its rotational axis (23 ). o. The longitudinal adjuster as claimed in one of claims 1 to 5. characteri/ed in that the control bearing (45) supports the control spring (51) in a rotationally fixed fashion by means of depressions and or eelevations. 1 he longitudinal adjuster as claimed in oneof claims 1 to 6. characterized in that the control spring (51) surrounds the control bearing (45) virtually completely. N. The longitudinal adjuster as claimed in one of claims 1 to . characterized in that the control spring (51) has at least one control tongue (53) which profrudes from the control hearing (45) with its free end which is short compared to the ON era 11 length. The longitudinal adjuster as claimed in oneof claims 1 to S. characterized in that a locking device (Id) is provided tor locking the longitudinal adjuster (3). which locking device (16) unlocks when the longitudinal adjuster (3) is triggered duecllx. and locks again in the newly set seal longitudinal position of the longitudinal adjuster (3). in particular an actuation device (101) which is assigned to the first seat rail (13) and which actuates the memory device (11) for the purpose of resetting, and the locking device (16) for the purpose of unlocking, is proxuled. In. A vechicle seal (1). in particular for a two-door mofor veehicle. having a freeh pixofable backrest (5). characterized by a longitudinal adjuster (3). as claimed in one of claims 1 to9). The invention relates to a device for adjusting a vehicle seat in the longitudinal direction, said seat comprising a freely pivoting backrest. The inventive device comprises a first seat rail, a second seat rail in relation to which the first seat rail can be displaced in the longitudinal direction, and a memory element, which is associated with the first seat rail and interacts with the second seat rail. Said memory element is used to store an adjusted longitudinal position of the seat, the seat leaving said longitudinal position when the backrest is pivoted, and returning to the said position when the backrest is pivoted in the reverse direction. The inventive device also comprises a displacement sensor (21) which can interact with the second seat rail, and a control signal emitter (41) which can be displaced in relation to displacement sensor (21), the relative movement of said signal emitter in relation to the displacement sensor (21) reproducing, from a starting position, the longitudinal displacement carried out. The control signal emitter (41) is subjected to a control torque, at the latest once the stored longitudinal position of the seat has been reached, and then controls at least at least one blocking element (73) which interacts with the second seat rail by means of a control spring (51). A control area (45) is arranged between the control signal emitter (41) and the control spring (51), which guides the control signal emitter (41) and which stores the control spring (51).

Documents:

01044-kolnp-2007-01022-kolnp-2007-correspondence others 1.4.pdf

01044-kolnp-2007-01022-kolnp-2007-form 1 1.1.pdf

01044-kolnp-2007-01022-kolnp-2007-form 5.pdf

01044-kolnp-2007-01022-kolnp-2007-gpa.pdf

01044-kolnp-2007-abstract.pdf

01044-kolnp-2007-claims.pdf

01044-kolnp-2007-correspondence others 1.1.pdf

01044-kolnp-2007-correspondence others 1.2.pdf

01044-kolnp-2007-correspondence others 1.3.pdf

01044-kolnp-2007-correspondence others.pdf

01044-kolnp-2007-description complete.pdf

01044-kolnp-2007-drawings.pdf

01044-kolnp-2007-form 1.pdf

01044-kolnp-2007-form 18.pdf

01044-kolnp-2007-form 2.pdf

01044-kolnp-2007-form 3.pdf

01044-kolnp-2007-international exm report.pdf

01044-kolnp-2007-international publication.pdf

01044-kolnp-2007-international search report 1.1.pdf

01044-kolnp-2007-international search report.pdf

01044-kolnp-2007-pct others.pdf

01044-kolnp-2007-pct request form.pdf

01044-kolnp-2007-priority document 1.1.pdf

01044-kolnp-2007-priority document.pdf

01044-kolnp-2007-translated copy of priority document.pdf

1044-kolnp-2007-correspondence.pdf

1044-kolnp-2007-examination report.pdf

1044-kolnp-2007-form 13.1.pdf

1044-KOLNP-2007-FORM 13.pdf

1044-kolnp-2007-form 18.pdf

1044-kolnp-2007-form 26.pdf

1044-kolnp-2007-form 3.pdf

1044-kolnp-2007-form 5.pdf

1044-kolnp-2007-granted-abstract.pdf

1044-kolnp-2007-granted-claims.pdf

1044-kolnp-2007-granted-description (complete).pdf

1044-kolnp-2007-granted-drawings.pdf

1044-kolnp-2007-granted-form 1.pdf

1044-kolnp-2007-granted-form 2.pdf

1044-KOLNP-2007-GRANTED-LETTER PATENT.pdf

1044-kolnp-2007-granted-specification.pdf

1044-kolnp-2007-others.pdf

1044-kolnp-2007-pa.pdf

1044-kolnp-2007-reply to examination report.pdf

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