WO2002094604A2 - Kraftfahrzeugsitz - Google Patents
Kraftfahrzeugsitz Download PDFInfo
- Publication number
- WO2002094604A2 WO2002094604A2 PCT/DE2002/001908 DE0201908W WO02094604A2 WO 2002094604 A2 WO2002094604 A2 WO 2002094604A2 DE 0201908 W DE0201908 W DE 0201908W WO 02094604 A2 WO02094604 A2 WO 02094604A2
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- WO
- WIPO (PCT)
- Prior art keywords
- seat
- motor vehicle
- locking
- memory
- locking device
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/12—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable and tiltable
- B60N2/123—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable and tiltable and provided with memory locks
Definitions
- the invention relates to a motor vehicle seat according to the preamble of patent claim 1.
- This includes, for example, a seat frame, a seat surface provided on the seat frame and a backrest which is pivotably mounted on the seat frame and which can be folded forward in the direction of the seat surface.
- the motor vehicle seat also has the following: a longitudinal guide with which the seat frame is movable in the longitudinal direction of the seat to adjust the longitudinal position of the seat;
- a locking device for locking the seat frame in a previously adjusted longitudinal seat position
- a coupling mechanism for coupling the locking device to the backrest, which acts on the actuating element and thereby unlocks the locking device when the backrest is folded forwards towards the seat surface;
- a memory device by means of which the seat frame can be automatically stopped in a predeterminable longitudinal seat position defined as a memory position during a movement in the longitudinal direction of the seat, wherein a stop associated with the seat frame and movable in the longitudinal direction of the seat engages with a counter-stop of the memory device;
- a locking device of the memory device for locking a set memory position and - Switching means with which the locking device can be unlocked in order to be able to set the memory position.
- Such a seat offers the possibility, after the backrest has been folded forward in the direction of the seat surface, to move the seat frame, and thus the entire vehicle seat, to the front so that a passenger can get into the rear facilitate (easy entry function).
- the seat can then be moved very easily back into its original longitudinal position when this longitudinal position is stored as a memory position by means of the memory device provided for this purpose.
- the seat frame is automatically stopped in the memory position when the seat is pushed back, a stop assigned to the seat frame interacting with a counter-stop of the memory device.
- a use position of the backrest is understood here to mean a position in which it has such an inclination with respect to the essentially horizontal seat surface that it is possible to support the back of an occupant on the seat.
- the seat To perform the easy entry function, the seat must be folded out from such a position of use towards the seat.
- the seat frame is understood to mean all elements of the seat which can be displaced in the longitudinal direction of the seat by means of the longitudinal guide, that is to say also the parts of the longitudinal guide itself which can be displaced in the longitudinal direction of the seat.
- the invention is based on the problem of further improving a motor vehicle seat of the type mentioned at the outset, in particular with regard to reliable storage of the current seating position as a memory position when the backrest is folded forward or with regard to the later approach to the stored memory position with in their use position, i.e. folded backrest.
- the backrest is coupled to the locking device on the one hand and to the locking device on the other hand that when the backrest is folded forwards towards the seat surface, the current longitudinal seat position is first locked as a memory position by means of the locking device and only then is the locking device unlocked.
- the coupling mechanism which acts on the actuating element and unlocks the locking device when the backrest is folded forwards towards the seat surface, and the means by which the locking mechanism tion device is coupled to the backrest, form a multi-stage locking and unlocking kinematics, which acts on the one hand on the locking device and on the other hand on the locking device to actuate it in at least two stages.
- the current longitudinal seat position can be locked as a memory position by means of the locking device and in a second stage the locking device can be unlocked.
- the coupling mechanism only acts on the actuating element in order to unlock the locking device after the current longitudinal seat position has been locked as a memory position by means of the locking device.
- the coupling mechanism already acts on the actuating element in order to unlock the locking device before the current longitudinal seat position has been locked as a memory position by means of the locking device, and that the locking of the locking device is only effective after the current seat longitudinal position has been locked as a memory position by means of the locking device.
- An embodiment of an arrangement for actuating the memory device, by means of which the current longitudinal seat position can first be locked as a memory position before the locking device of the longitudinal seat guide is subsequently unlocked, is characterized by the features of patent claim 6.
- a movably mounted driver (preferably on the seat frame) is provided which, when the backrest is in the use position, is held in a position by means of a locking element in which it acts on the memory device in the memory position of the seat or seat frame that the memory position can be adjusted together with the seat frame when the longitudinal position of the seat is adjusted, the driver preferably being coupled to a return spring which lifts the driver from the memory device when the backrest is folded forward.
- the driver unlocks the locking device when it acts on the memory device and also enables the memory position to be readjusted when the seat is moved.
- the blocking element releases the driver when the backrest is folded forward by being lifted off the driver.
- the memory device or its locking device can then change into the locked state, so that when the backrest is folded forward with the aim of performing the easy entry function, the current sitting position is automatically saved by means of the memory device.
- this arrangement enables a very compact structure of the assemblies provided for creating the easy entry function, as will become clear below in the description of exemplary embodiments with reference to the figures.
- the driver lifts off the memory device when the backrest is folded forward, before the locking device of the longitudinal seat guide coupled to the backrest is unlocked. This ensures that the current seating position is saved by means of the memory device before the longitudinal seat adjustment can begin after the locking device has been unlocked.
- the driver lifts off the memory device and that the locking device is unlocked when the backrest is folded forwards.
- the absolute size of the aforementioned angles depends on the inclination of the backrest previously in the position of use. Alternatively, the two angles can also be defined relative to the vertical (ie to a vertically oriented backrest). It is decisive in any case that the absolute angle by which the backrest must be pivoted when folding forward until the locking device is unlocked is greater than the angle by which the backrest must be folded forward until the driver is removed from the memory - Facility stands out.
- the locking element is elastically biased in the direction of the driver, the bias with which the locking element acts on the driver is greater than the restoring effect of the return spring coupled to the driver.
- the locking element can hold the driver against the action of the return spring in a position in which the driver acts on the memory device in such a way that it is unlocked, so that when the seat is moved out of the memory position, it is in the use position Backrest the memory position is reset.
- the locking element must be coupled to the backrest in such a way that when the backrest is folded forward, the locking element is lifted off the driver.
- a traction means in particular in the form of the core of a Bowden cable, can be used to couple the locking element to the backrest.
- the locking element is preferably pivotally mounted and provided on a lever which at the same time has an actuating section for unlocking the locking device of the longitudinal seat guide.
- the driver in turn is preferably mounted so that it can be moved slowly and in such a way that it can act positively on the memory device in order to also readjust the memory position when the seat longitudinal position is adjusted (with the backrest in the use position, ie when the memory device is unlocked) cause. If the seat is outside of its memory position, the driver is spaced from the memory device in the longitudinal direction of the seat, so that the locking device of the memory device can easily assume its locked state. For this purpose, the locking device is preferably biased towards the locked state.
- the driver When moving to the memory position with the backrest in the use position, the driver preferably acts on the memory device in such a way that its locking device is unlocked. This ensures that the memory position can be easily readjusted when the seat is adjusted with the backrest folded up (i.e. especially while a vehicle occupant is on the corresponding seat).
- the driver is under the action of its return spring in a position in which it does not act on the memory device, so that when the memory position is approached with the backrest folded forward (that is, when the easy-entry function is carried out) ) the seat is stopped in the memory position so that the seat position existing before exercising the easy entry function is automatically found again.
- the memory device In order to facilitate moving to the memory position and unlocking the memory device when the backrest is in the use position, the memory device preferably has a ramp with which the driver can be used for Approaching the memory position takes effect, for example by sliding the driver onto the ramp in the memory position.
- a (preferably on the seat frame) movably mounted hold-down device which acts on the memory device in the memory position of the seat and when the backrest is in the use position (folded up) such that its locking device is unlocked and it is a ramp (which can be displaced in the longitudinal direction of the seat together with the locking device) is provided, with which the hold-down device comes into active connection when the memory position is approached with the backrest in the use position, moving along and on this.
- the hold-down device unlocks the locking device when it acts on the memory device and can also serve as a driver which enables the memory position to be readjusted when the seat is moved (with the backrest folded up), in particular in a case in which the seat is together with one vehicle occupants located there is moved to adjust the longitudinal position of the seat.
- the ramp provided according to the invention enables an automatic unlocking and, if necessary, taking the locking device of the memory device when the memory position is in the use position, with the backrest folded up, in that the hold-down device is specifically guided into a position by means of the ramp in which it acts on the locking device in such a way that it is unlocked.
- the memory position can be reset automatically when the seat is adjusted with the backrest folded up.
- the solution according to the invention enables the use of a longitudinally displaceable but not pivotable hold-down device (that is to say rigidly mounted transversely to its direction of displacement) for unlocking the locking device.
- the driver is preferably movably mounted along a straight line, specifically the vertical vehicle axis (that is to say in particular perpendicular to the longitudinal direction of the seat).
- the hold-down device can be guided by means of the ramp when moving to the memory position in such a way that pivoting is not necessary.
- the hold-down device can slide on the ramp when moving to the memory position or move on the ramp by means of rollers or edges.
- the movably mounted hold-down device is spring-elastic in its direction of movement in order to enable the ramp (inclined in the longitudinal direction of the seat) to be driven on.
- the hold-down device moves along the ramp on elastic wheels or rollers.
- the locking device of the memory device has a locking unit which is displaceable in the longitudinal direction of the seat and at the same time defines the memory position, the locking unit being assigned a locking device which has locking points arranged one behind the other in the longitudinal direction of the seat, at which the locking unit can be locked with respect to the latching device.
- the locking unit itself comprises a pivotally mounted pawl, which has a locking element that can snap into the locking device at the locking points.
- the hold-down device acts on the pawl to unlock such a locking device.
- the ramp is preferably formed on the pivotably mounted pawl of the locking unit, so that when the ramp is driven on by the hold-down device, the pawl is increasingly pivoted and the locking device is unlocked.
- the ramp in particular enables the driver to move onto the pawl when the memory position is approached.
- the ramp extends transversely to the longitudinal direction of the pawl only over part of the width, so that the adjacent areas can act as a stop.
- a stop is provided on the locking device, in particular on the pawl, which, when the memory position is approached, interacts with a stop on the seat frame side (connected to the longitudinal seat guide) in such a way that unlocking of the locking device is blocked until the seat frame has reached the memory position.
- the hold-down device preferably serves at the same time as a driver, which acts on the memory device in the memory position of the seat and when the backrest is in the use position in such a way that the memory position together with the position adjustment when the seat is in the longitudinal position Seat frame is adjusted. There is then no need for a separate additional driver for adjusting the memory position when moving the seat.
- the hold-down device can then be held in the position in which it unlocks the locking device when the backrest is folded up, and can also be coupled to a return device, in particular a return spring, which removes the driver from the memory device when the backrest is folded forward takes off.
- a locking device with a locking unit which can be displaced in the longitudinal direction of the seat and which defines the memory position in the locked state and which is assigned a locking device which comprises locking points arranged one behind the other in the longitudinal direction of the seat, at which the locking unit can be locked with respect to the locking device, and with one on the locking unit a pivotally mounted pawl, which is provided with a latching element which can snap into the latching device at said latching points, the driver preferably acts via the pawl on the memory device.
- a stop can be provided on the pawl, on which the driver acts when the backrest is in its use position, so that the locking unit can be taken with the backrest folded up when the seat longitudinal position is adjusted.
- the Stop can also be formed by a trough in the pawl into which the driver, which can be displaced together with the seat frame in the longitudinal direction of the seat, engages.
- the locking device is not used to set the memory position in a stepless manner, but a plurality of locking points are provided, at each of which the memory device can be locked and thus the memory position can be determined.
- This can lead to problems if the longitudinal adjustment of the seat also enables a continuous adjustment of the longitudinal position of the seat. Because it will then regularly occur that a seat user moves the seat into a longitudinal position and wants to lock there, in which a locking of the (not stepless) memory device is not possible.
- the memory device has a stop which, in the unlocked state of the memory device, interacts with an associated stop of the seat frame (which can be provided, for example, on the seat-side rail of the longitudinal guide) in such a way that it moves in the longitudinal direction of the seat
- an associated stop of the seat frame which can be provided, for example, on the seat-side rail of the longitudinal guide
- the solution according to the invention enables a very compact arrangement of all assemblies that ensure the easy entry function, including the memory device and plus the locking device for the longitudinal adjustment of the seat.
- the memory device can be arranged completely within the space enclosed by the rails of the longitudinal guide.
- Figure la - is a perspective view of parts of a seat frame with a longitudinal seat guide, with a locking device of the longitudinal seat guide and with a programmable memory device for automatically finding a predetermined longitudinal seat position, in a state in which the backrest of the corresponding seat is in its use position;
- Figure 1b - a representation according to Figure la, the rails of the longitudinal seat guide are not shown;
- Figure 2 - a representation according to Figure lb, wherein the backrest of the seat has been folded a bit forward from its use position;
- Figure 3 another representation according to Figure lb, wherein the backrest of the seat has been folded down to the associated seat;
- Figure 4 - a modification of the memory device from Figures la to 3;
- FIG. 6 shows a perspective illustration of a seat frame known from the prior art in a state in which the seat is locked in its memory position with the backrest folded up;
- Fig. 6a - a rear view of the representation of Fig. 6; 7 - a representation according to FIG. 6 in a state in which the backrest is folded forward in order to be able to move the seat with the backrest folded forwards;
- FIG. 8 a representation according to FIG. 6 in a state in which an actuating lever was actuated in the memory position when the backrest was folded up in order to reset the memory position;
- Fig. 11 - a schematic representation of a seat frame.
- the seat frame G On its other longitudinal side, which cannot be seen in FIG. 11, the seat frame G has a corresponding arrangement. Between the two seat side parts of the seat frame G extends a seat that receives a seat cushion on which a vehicle occupant can take a seat.
- the side parts 8 of the seat frame G each have a bearing point 80 for the pivotable mounting of a backrest R indicated by dashed lines in FIG.
- parts of the seat frame are understood to be all those components which can be moved on the body-fixed lower rail 1 in the longitudinal direction of the seat, that is to say in particular the seat rail 2, the seat side part 8 and the further seat components connected therewith.
- FIG. 6 and the associated rear view according to FIG. 6a show a rail 101 fixed to the body and a seat rail 102 movably guided thereon in the longitudinal direction L of the seat, with a locking rail 107 on the fixed rail 101 having a plurality of latching openings 170 arranged one behind the other in the longitudinal direction L of the seat is attached.
- the seat rail 102 carries the other components of the seat frame, cf. Figure 11.
- the seat rail 102 can be locked with respect to the rail 101 fixed to the body by means of a locking device 120.
- This can be a conventional locking device for a longitudinal adjustment of the seat.
- FIGS. 6 and 6a show the housing, a pivotably mounted actuating element 120b and a torsion spring acting on the actuating element 120b of a known locking device, the housing of which is fastened to the seat rail 2.
- the torsion spring serves among other things the removal of play from the arrangement to prevent rattling noises.
- This locking device comprises, for example according to DE 299 10 720 Ul, a plurality of locking teeth arranged inside the housing, which - by means of springs in the form of coil springs mounted in the housing - elastically fastened in the direction of a rail 1 on the body-side rail, in FIGS. 6 and 6a not recognizable, locking devices are biased. Because of the Preloading locking teeth automatically engage the locking teeth assigned to seat rail 102 into the body-fixed locking device, so that the longitudinal adjustment of the seat is locked unless the locking teeth are disengaged from the locking device by means of the actuating element 120b provided for this purpose.
- the locking device 120 Since the actuating element 120b of the locking device 120 is biased against the direction in which it is pivoted to unlock the locking device 120 by means of the spring arrangement 120a, which consists of the springs acting on the locking teeth arranged inside the housing and the torsion spring arranged outside the housing the locking device 120 can only be unlocked if a force is exerted on the actuating element 120b thereof against the action of the spring arrangement 120a.
- the spring arrangement 120a which consists of the springs acting on the locking teeth arranged inside the housing and the torsion spring arranged outside the housing the locking device 120 can only be unlocked if a force is exerted on the actuating element 120b thereof against the action of the spring arrangement 120a.
- the actuating element 120b can on the one hand be actuated directly by a seat user by gripping and actuating an actuating lever 109 (which cannot be seen in FIGS. 6 and 6a) and is pivotably articulated on the seat frame and has a cross tube 190 this pivots counterclockwise, whereby the actuating element 120b moves against the bias of the spring assembly 120a down.
- the fixing device 120 can also be unlocked by folding the seat back forwards, for which purpose the seat back is coupled to the actuating lever 109 via a Bowden cable which has a rope 121b and whose Bowden (not shown) is supported on a Bowden support 121 is.
- a gear part 122 is mounted on the pivot axis of the actuating lever 109 by means of an axle stub 124, which has a guide 122a and a suspension 122b for the cable 121b of the Bowden cable.
- This gear part 122 converts a tightening of the rope 121b into a pivoting movement when the backrest is folded forward, which in turn is transmitted to the latter by two arms 123 of the gearbox, which embrace the actuating lever 109.
- the actuating lever 109 pivots clockwise when the backrest is folded forward and unlocks the locking device 120 via the actuating element 120b.
- a cable nipple 168 is also fastened, for example by squeezing, between the Bowden support 121, which is fastened to the seat rail by means of a fastening plate 121a, and the transmission 122.
- the cable nipple 168 is assigned a switching element in the form of a switching lever 106, which is pivotably mounted by means of a bearing bush 165, a stepped bolt 165a and a screw 166 about an axis formed by the longitudinal axis of the stepped bolt 165a and is simultaneously fastened to the seat frame or its seat rail 102 ,
- the shift lever 106 has a stop 162 which is arranged directly next to the rope nipple 168 and on which the rope nipple 168 can act in the longitudinal direction of the seat, as a result of which the shift lever 106 is pivoted.
- the second end section of the shift lever 106 arranged below the bearing bush 165 and the stepped bolt 165a forms an actuation section 160 to which an actuation section of a pawl 104 of the memory device is assigned.
- the actuating section of the pawl 104 is formed by an actuating surface 140 on the top of the pawl.
- the shift lever 106 is locked in the position shown in FIGS. 6 and 6a by an extension 191 of the actuating lever 109, on which the upper section 161 of the shift lever 106 is supported vertically (transversely to the longitudinal direction of the seat L) by a stop 163 whose actuating section 160 acts on the actuating surface 140 of the pawl 104.
- the torque required for this is applied by the spring arrangement 120a of the locking device 120, which acts on the lever extension 191 via the actuating element 120b and the actuating lever 109.
- the vertical position of the shift lever 106 can also be supported by a spring arranged directly on the shift lever 106 or by the fact that the shift lever 106 is mounted with sufficient friction which cannot be overcome by the action of the compression spring 400 of the pawl 104.
- the pawl 104 itself, as can be seen particularly from FIG. 6a, is pivotally mounted on a bearing journal 155 of a slider 105, which is guided with a base body 150 in the longitudinal direction L of the seat next to the latching openings 170 of the latching rail 107.
- the glider points in its base body 150 has a recess 152 in which a compression spring 400 is arranged, which acts on the pawl 104 below the actuating section 140 and thereby biases the pawl 104 such that a locking hook 141 arranged at the other end of the pawl 104 has a tendency to engage in the locking rail 107.
- the shift lever 106 is pivoted counterclockwise, its actuating section 160 being lifted off the associated actuating surface 140 of the pawl 104. This pivoting movement of the shift lever 106 is possible because it is no longer blocked by the lever extension 191, which was pivoted downward together with the actuating lever 109. Characterized in that the shift lever 106 has released the pawl 104, this now pivots due to the action of the compression spring 400 (see FIG. 6a) around the bearing pin 155 of the slider 105 until the latching hook 141 engages in an opening 170 of the latching rail 107. The pawl 104 and thus the memory device as a whole is locked.
- the pivoting movement of the pawl 104 also has the consequence that the driver 143 of the pawl 104 and the engagement area 134 of the stop element 103 disengage. This is necessary in order to be able to move the seat frame, since otherwise a movement of the seat would be blocked by the locked memory device.
- the cable nipple 168 serves here as a locking means, which acts on the shift lever 106 when the backrest is folded forwards so that the pawl 104 cannot be unlocked by means of the shift lever 106.
- the arrangement is designed such that when the backrest of the latching hook 141 is folded forward under the action of the compression spring 400, it can already engage in a latching opening 170 before the locking device 120 is unlocked to such an extent that the seat rail 102 is displaceable with respect to the rail 101 fixed to the body. This ensures reliable storage of the current seat longitudinal position as a memory position.
- the latch hook 141 cannot directly engage in a latch opening 170 because the seat is positioned such that the latch hook 141 hits a web between two latch openings 170 under the action of the compression spring 400, then the latch hook 141 only latches after a slight displacement of the seat frame in the seat longitudinal direction L into the next latching opening 170 which it passes. In such a case, there is a slight deviation between the longitudinal seat position when the backrest is folded forward and the memory position subsequently stored.
- the seat frame can now be moved forward with the backrest folded forwards in the longitudinal direction L of the seat in order to facilitate the entry of a passenger or the insertion of an object into the rear of a motor vehicle , If the seat is then moved back again with the backrest folded forward, it is automatically stopped at the latest in the memory position defined by the pawl 104. Because when the memory position is reached, the stop 132 of the seat frame comes into contact with the stop 144 of the memory device, which prevents further movement of the seat frame to the rear.
- the locking device 120 is unlocked via the actuating element 120b, so that the seat frame can be moved in the longitudinal direction L of the seat on the rail 101 fixed to the body; however, in contrast to folding the backrest forward, the shift lever 106 remains in its vertical position, in which its actuating section 160 acts vertically on the actuating surface 140. This prevents the pawl 104 from being locked under the action of the compression spring 400. Because of the lever extension 191 pivoted downward according to FIG.
- the vertical position of the shift lever 106 must be secured, for example, by a suitable design of the actuating surface 140 of the pawl 104.
- the actuating surface 140 can be curved in such a way that it does not exert a moment under the action of the compression spring 400 of the pawl 104 on the actuating section 160 of the shift lever 106, which would result in a pivoting movement of the shift lever 106 counterclockwise.
- the vertical position of the shift lever 106 - as already mentioned above - can also be secured by means of a suitable spring element or by means of sufficiently large frictional forces.
- actuation of the actuation lever 109 in the memory position of the seat means that on the one hand the locking device 120 is unlocked, while at the same time the pawl 104 and thus the memory device as a whole remain in the unlocked state, which is already existed before pivoting the operating lever 109, cf. Figures 6 and 6a.
- the driver 143 of the memory device engages in the engagement region 134 of the stop element 103 on the seat rail side.
- FIG. 9 shows the seat frame after it has first been moved forward with the backrest folded forwards in the longitudinal direction L of the seat, the locking pawl 104 being left locked in the original sitting position, and after the backrest has subsequently been folded back into its functional position.
- the actuating lever 109 is pivoted such that the locking device 120 is unlocked and the seat frame in the longitudinal direction of the seat either forward or backward can be adjusted.
- the seat frame can be locked by means of the locking device 120 with respect to the rail 1 fixed to the body by releasing the actuating lever 109.
- the actuating surface 140 in the locked state of the pawl 104 interacts with the actuating section 160 of the shift lever 106 such that it is pivoted when the seat is pushed into the memory position with the backrest raised, thereby preventing the pawl 104 from being unlocked.
- the shift lever 106 is pivoted anyway due to the action of the cable nipple 168, see FIG. 7, so that in this case too there is no unlocking of the memory device
- the actuating surface 140 of the pawl 104 and the actuating section 160 of the shift lever 106 interact in the unlocked state of the pawl 104, see FIG. 6, in such a way that the pawl 104 remains unlocked, as explained in more detail above with reference to FIG. 6 has been.
- the seat frame is automatically stopped when the memory position is reached when the stop 132 of the stop element 103 on the seat frame side moves with the counter-stop 144 of the memory device (cf. FIG. 6a) onto a block.
- the actuating lever 109 is then released in the memory position, it is pivoted clockwise under the action of the spring arrangement 120a of the locking device 120 until the locking device 120 is locked again.
- the extension 191 of the actuating lever 109 which acts on the angled stop 163 in the upper section 161 of the switching lever 106, pivots the switching lever 106 clockwise into its vertical position, the switching lever 106 with its actuating section 160 on the actuating surface 140 of the pawl 104 acts and unlocks (against the action of the compression spring 400) (which requires a corresponding design of the spring arrangement 120a).
- the seat is then again in the state explained with reference to FIGS. 6 and 6a with the backrest folded up in the memory position.
- FIGS. 6 to 11 A further development according to the invention of the known motor vehicle seat described above with reference to FIGS. 6 to 11 will now be explained with reference to FIGS.
- the motor vehicle seat or its seat frame shown in FIGS. 6 to 11 are correct with regard to the design of the longitudinal rail guide 101, 102, the design of the locking device 120 and the design of the memory device 104, 105, 107 with the aid of FIGS 11 essentially described vehicle seat. These features will therefore not be discussed in more detail below. Instead, reference is made in this regard to the preceding explanations relating to FIGS. 6 to 11, the necessary references being produced by using corresponding reference numerals for corresponding components in FIGS. 1 a to 3 on the one hand and in FIGS. 6 to 11 on the other hand.
- FIGS. 1 a to 3 lie in the design of a driver and an associated locking element, which enable an automatic readjustment of the memory position when the vehicle seat is adjusted with the backrest folded up (backrest in the use position) and prevent the memory position from being readjusted when the vehicle seat is also on the seat surface in order to carry out the easy entry function folded backrest is moved.
- FIG. 1 a shows a perspective longitudinal view of a longitudinal seat guide 101, 102 consisting of a lower rail 101 to be fixed to the body and an upper rail 102 supporting the seat frame.
- This longitudinal guide 101, 102 enables adjustment of the longitudinal seat position (position of the seat frame in the longitudinal direction of the seat L).
- a locking device 120 with elastically prestressed locking teeth Z is provided, which is arranged on the seat-side upper rail 102 (seat rail) and whose locking teeth Z can engage in assigned latching openings in the body-fixed lower rail in order to lock the two rails 101, 102 , Due to the elastic preloading of the ratchet tooth Z in the direction of the associated latching openings, the fixing device 120 tends to lock the two rails 101, 102 with one another, provided that this is not unlocked by acting on an actuating element 120b provided for this purpose (see FIGS. 7 to 10) , This action can - as already explained above with reference to FIGS.
- FIG. 6 to 11 take place on the one hand by directly unlocking the locking device via a suitable actuating lever or indirectly by folding the backrest forward to trigger the easy entry function.
- a memory device 104, 105, 107 namely a slider 105, a pivotably arranged on the slider 105
- FIG. 1 a and in particular from FIG. 1 b, in which the rails 101, 102 are not shown Locking pawl 104 and a locking rail 107 provided with locking openings 170, into which a locking hook 141 of the locking pawl 104 can engage to lock a previously set memory position.
- FIGS. 6 to 11 for further explanations.
- FIGS. 1a and 1b show a section of the seat frame designed according to the invention in a state in which the seat is locked in a memory position by means of the locking device 120 when the backrest is folded up (in its use position).
- a hold-down in the form of a driver 203 acts on the pawl 104 of the memory device in such a way that the pawl 104 is lifted out of the latching rail 107 with its latching hook 141.
- the driver 203 is arranged in a slowly displaceable manner on the seat rail 102 or a holding part 201 fastened to the seat rail 102 and comprises an elongated base body 230, on the lower end of which, facing the pawl 104, a driving element 234 provided with a driving opening 235 is formed or fastened.
- This driver 203 is by means of an elastic element 232 in the form of a compression spring (return spring), which is on the one hand on the holding part 201 and on the other hand on a protrusion 231 protruding from the base body 230 of the driver 203 is biased in a direction away from the pawl 104 such that it tends to lift off the pawl 104.
- a compression spring return spring
- a locking element 221 on the base body 220 of a lever 202 which is pivotably mounted about an axis 225 and which is pretensioned in the direction of the projection 231 of the driver 203 by means of a spring element 228 in the form of a torsion spring such that the locking element 221 counteracts the driver the action of the elastic element 232 provided on the driver presses against the pawl, so that the latching hook 141 of the pawl 104 is lifted out of the latching rail 107.
- a projection 145 of the pawl 104 designed as a locking lug engages in the driving opening 235 of the driver 203.
- the mechanism is designed in such a way that the memory device 104, 105, 107 is locked when the backrest is folded forward from a vertical position of use by approximately 20 ° to 40 °.
- the memory device is thus locked in the first stage (phase) of the activation of the easy entry mechanism by folding the backrest toward the seat.
- the locking device 120 is still locked in this first phase of folding the backrest forward, so that the seat cannot be moved in the longitudinal direction L yet.
- an actuating section 222 provided on the pivotably mounted lever 202 acts on the actuating lever 109 of the locking device 120 (shown in FIGS. 7 to 10) that the locking device 120 is unlocked. This then enables the seat to be displaced in the longitudinal direction L.
- the entire arrangement is very compact due to the displaceability of the driver 203 essentially perpendicular to the direction of extension L of the longitudinal seat guide and because of the pivotable mounting of the lever 202 with the locking element 221 and is essentially in that of the rails 101, 102 of the longitudinal rail guide enclosed space or only protrudes upwards from this.
- the problem can arise that the latching hook 141 of the pawl 104 does not enter one of the latching openings 170 of the latching slide. ne 107 can intervene.
- the locking device 120 generally enables the seat longitudinal position to be continuously adjusted, compare, for example, the locking device described in DE 299 10 720 U1, while in the present case a fine-level (i.e. no continuous) locking (using the locking rail 107) for locking the memory position with locking openings 170) is provided. It can therefore occur that when the backrest of the latching hook 141 is folded forward, the pawl 104 cannot engage in a latching opening 170, but instead stands on the edge thereof. As a result, it is initially not possible to lock the memory position.
- the pawl 104 is taken along with the slider 105 a little further, since a stop 127 provided on the seat rail 102 acts on an associated stop 147 on the pawl side.
- the pawl 104 and the slider 105 are only carried along until the catch hook 141 of the pawl 104 can fully engage in the nearest catch opening 170 of the catch rail 107 under the action of the spring element provided on the catch.
- the pawl 104 and thus the locking device 104, 107 of the memory device 104, 105, 107 as a whole are then locked in the memory position which is closest to the longitudinal seat position in which the locking device 120 was locked before the backrest was folded forward.
- the locking pawl-side stop 147 is below the seat rail-side stop 127, so that these stops 127, 147 can no longer come into operative connection with one another.
- the seat can then be moved further forward in the longitudinal direction of the seat L, the pawl 104 and the slider 105 remaining in the previously locked memory position.
- FIG. 4 shows a modification of the exemplary embodiment from FIGS. 1 a to 3, specifically with a view to moving to the memory position when the seat is pushed back with the backrest in the use position, that is to say folded up. This applies in particular to the case where the seat is shifted backwards towards the memory position while a vehicle occupant is on the seat.
- the driver 203 hits when the memory Position on the pawl 104.
- the driver 203 is pressed down because of the backrest in the use position by means of the locking element 221 (not shown in Figure 4) in the direction of the pawl 104 of the memory device. In this state, shown in FIG.
- the pawl 104 has a ramp 146 on which the lower end section 234 'of the Driver 203 can slide to a trough 145 'of the pawl 104. This is illustrated in FIGS. 5a to 5c, the driver 203 finally engaging in the memory position with its lower end section 234 'in the associated trough 145' of the pawl 104.
- the lower end section 234 'of the driver 203 and the trough 145' of the pawl 104 then act as stops which allow the pawl 104 to be taken along with the slider 105 when the seat is moved further.
- the ramp 146 extends only over part of the width of the pawl 104 (extension perpendicular to the longitudinal direction of the seat L and to the direction of movement of the driver 203), so that adjacent areas 148 of the pawl 104 can act as stops in order to lock the pawl 104 in the locked state Define memory position.
- the driver 203 Since the driver 203 is pressed down toward the locking pawl 104 when the memory position is approached with the backrest located in the use position, it also lifts the locking hook 141 of the locking pawl 104 out of the assigned locking rail 107 when the memory position is approached , Only in this way is the joint further adjustment of the seat on the one hand and of the pawl 104 and slider 105 on the other hand made possible.
- the pawl-side stop 147 of the locking device (pawl 104) being supported on the seat frame-side stop 127 in the vertical direction (parallel to the direction of movement of the driver 203), while If the driver 203 slides along the ramp 146, the pawl 104 can only be lifted out of the associated latching rail 107 after the pawl-side stop 147 has passed the stop 127 on the seat frame side. The driver 203 then engages in the trough 145 '.
- the driver 203 Since the stops 127, 147 initially prevent pivoting of the pawl 104 and the ramp 147 is inclined in the longitudinal direction of the seat, the driver 203 is first raised when driving onto the ramp 146. In this case, the driver 203 (which is spring-mounted by means of the spring 232) carries out a compensating movement in the vertical direction.
- the embodiment of the invention shown in FIGS. 4 to 5c enables the memory device to be taken along automatically when moving to the memory position with the backrest located in the use position and parts 104, 105 in the memory position, so that when adjusting of the seat with the backrest folded up, the memory position can be automatically reset.
- the driver 203 is under the action of the compression spring 232 in a position in which it cannot act on the pawl 104 of the memory device 104, 105, 107.
- the pawl 104 remains locked together with the slider 105 in the memory position, in which the seat is then automatically stopped, so that the previously set memory position was found as desired when the seat was pushed back with the backrest folded forward.
- the ramp 146 makes it possible to drive the driver 203 onto the pawl 104, since otherwise the driver 203 would come into contact with the pawl 104 when the memory position was approached and could not drive onto it to unlock the locking device.
- the hold-down device is raised by means of the ramp (towards the trough 145 ').
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002591295A JP4102903B2 (ja) | 2001-05-25 | 2002-05-22 | 原動機付き車両シート |
US10/479,305 US7172249B2 (en) | 2001-05-25 | 2002-05-22 | Motor vehicle seat |
DE50213272T DE50213272D1 (de) | 2001-05-25 | 2002-05-22 | Kraftfahrzeugsitz |
EP02740375A EP1395459B1 (de) | 2001-05-25 | 2002-05-22 | Kraftfahrzeugsitz |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2001127151 DE10127151B4 (de) | 2001-05-25 | 2001-05-25 | Kraftfahrzeugsitz |
DE10127152.2 | 2001-05-25 | ||
DE10127151.4 | 2001-05-25 | ||
DE2001127152 DE10127152B4 (de) | 2001-05-25 | 2001-05-25 | Kraftfahrzeugsitz |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002094604A2 true WO2002094604A2 (de) | 2002-11-28 |
WO2002094604A3 WO2002094604A3 (de) | 2003-01-23 |
Family
ID=26009470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2002/001908 WO2002094604A2 (de) | 2001-05-25 | 2002-05-22 | Kraftfahrzeugsitz |
Country Status (6)
Country | Link |
---|---|
US (1) | US7172249B2 (de) |
EP (1) | EP1395459B1 (de) |
JP (1) | JP4102903B2 (de) |
DE (1) | DE50213272D1 (de) |
ES (1) | ES2321167T3 (de) |
WO (1) | WO2002094604A2 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2401783A (en) * | 2003-04-10 | 2004-11-24 | Johnson Controls Automotive Uk | Vehicle seat with memory device for tracking longitudinal position |
US9221360B2 (en) | 2011-05-07 | 2015-12-29 | Keiper Gmbh & Co. Kg | Longitudinally adjustable vehicle seat with a memory device |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE20314237U1 (de) * | 2003-09-09 | 2005-01-13 | Brose Fahrzeugteile Gmbh & Co. Kg, Coburg | Memory-Einrichtung für eine Schienenlängsführung eines Kraftfahrzeuges |
DE102004057900B3 (de) * | 2004-12-01 | 2006-02-02 | Keiper Gmbh & Co.Kg | Längseinsteller für einen Fahrzeugsitz |
FR2882537B1 (fr) * | 2005-02-28 | 2008-12-05 | Faurecia Sieges Automobile | Siege de vehicule muni d'un dossier rabattable se debloquant lors du retour en position de l'assise |
FR2882539B1 (fr) * | 2005-02-28 | 2007-05-18 | Faurecia Sieges Automobile | Dispositif pour actionner simultanement deux elements et siege comprenant un tel dispositif |
DE102007027321A1 (de) * | 2007-06-14 | 2009-02-05 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Verriegelungsvorrichtung für ein Schienenverstellsystem |
DE102010051337B4 (de) * | 2010-11-13 | 2014-11-20 | Faurecia Autositze Gmbh | Manuell längsverstellbarer Kraftfahrzeugsitz |
DE102011003052A1 (de) * | 2011-01-24 | 2012-07-26 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Betätigungsvorrichtung für eine Verriegelungseinrichtung einer Verstellvorrichtung eines Kraftfahrzeugsitzes |
EP2768696B1 (de) * | 2011-10-17 | 2019-07-24 | Fisher & Company, Incorporated | Sitzschienenanordnung |
US10266074B2 (en) | 2011-10-17 | 2019-04-23 | Fisher & Company, Incorporated | Seat-track assembly |
JP6079305B2 (ja) * | 2013-02-28 | 2017-02-15 | アイシン精機株式会社 | 車両用シートスライド装置 |
IT201800007333A1 (it) * | 2018-07-19 | 2020-01-19 | Dispositivo di scorrimento per un sedile di veicolo provvisto di un gruppo di rilascio migliorato | |
US10870489B2 (en) * | 2019-05-24 | 2020-12-22 | B/E Aerospace, Inc. | Position adjustable armrest assemblies for passenger seats |
DE102019128400A1 (de) * | 2019-10-21 | 2021-04-22 | Faurecia Autositze Gmbh | Längsverstellung für einen kraftfahrzeugsitz |
US11225173B2 (en) | 2020-02-12 | 2022-01-18 | Fisher & Company, Incorporated | Seat-track assembly |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000055002A2 (de) | 1999-03-15 | 2000-09-21 | Brose Fahrzeugteile Gmbh & Co. Kg, Coburg | Kraftfahrzeugsitz |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2756522B1 (fr) | 1996-12-03 | 1999-01-29 | Faure Bertrand Equipements Sa | Glissiere pour siege de vehicule et siege comportant une telle glissiere |
FR2776581B1 (fr) * | 1998-03-24 | 2000-06-02 | Faure Bertrand Equipements Sa | Glissiere pour siege de vehicule et siege comportant une telle glissiere |
DE29910720U1 (de) | 1999-06-11 | 1999-08-12 | Brose Fahrzeugteile GmbH & Co. KG, Coburg, 96450 Coburg | Feststellvorrichtung für einen einstellbaren Fahrzeugsitz |
-
2002
- 2002-05-22 JP JP2002591295A patent/JP4102903B2/ja not_active Expired - Fee Related
- 2002-05-22 ES ES02740375T patent/ES2321167T3/es not_active Expired - Lifetime
- 2002-05-22 WO PCT/DE2002/001908 patent/WO2002094604A2/de active Application Filing
- 2002-05-22 US US10/479,305 patent/US7172249B2/en not_active Expired - Lifetime
- 2002-05-22 DE DE50213272T patent/DE50213272D1/de not_active Expired - Lifetime
- 2002-05-22 EP EP02740375A patent/EP1395459B1/de not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000055002A2 (de) | 1999-03-15 | 2000-09-21 | Brose Fahrzeugteile Gmbh & Co. Kg, Coburg | Kraftfahrzeugsitz |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2401783A (en) * | 2003-04-10 | 2004-11-24 | Johnson Controls Automotive Uk | Vehicle seat with memory device for tracking longitudinal position |
GB2401783B (en) * | 2003-04-10 | 2006-06-21 | Johnson Controls Automotive Uk | Vehicle seat assembly |
US9221360B2 (en) | 2011-05-07 | 2015-12-29 | Keiper Gmbh & Co. Kg | Longitudinally adjustable vehicle seat with a memory device |
Also Published As
Publication number | Publication date |
---|---|
EP1395459B1 (de) | 2009-02-11 |
ES2321167T3 (es) | 2009-06-03 |
DE50213272D1 (de) | 2009-03-26 |
WO2002094604A3 (de) | 2003-01-23 |
JP2004526626A (ja) | 2004-09-02 |
US7172249B2 (en) | 2007-02-06 |
US20040169409A1 (en) | 2004-09-02 |
EP1395459A2 (de) | 2004-03-10 |
JP4102903B2 (ja) | 2008-06-18 |
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