WO2017032596A1 - Dispositif de réglage pour siège de véhicule - Google Patents

Dispositif de réglage pour siège de véhicule Download PDF

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Publication number
WO2017032596A1
WO2017032596A1 PCT/EP2016/068996 EP2016068996W WO2017032596A1 WO 2017032596 A1 WO2017032596 A1 WO 2017032596A1 EP 2016068996 W EP2016068996 W EP 2016068996W WO 2017032596 A1 WO2017032596 A1 WO 2017032596A1
Authority
WO
WIPO (PCT)
Prior art keywords
adjusting device
adjustment
seat
toothed
seat part
Prior art date
Application number
PCT/EP2016/068996
Other languages
German (de)
English (en)
Inventor
Bastian Erbacher
Andreas DIEMAR
Original Assignee
Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg filed Critical Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg
Publication of WO2017032596A1 publication Critical patent/WO2017032596A1/fr

Links

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
    • B60N2/16—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 height-adjustable
    • B60N2/1635—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 height-adjustable characterised by the drive mechanism
    • B60N2/165—Gear wheel driven mechanism
    • 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
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/995—Lower-leg-rests, e.g. calf-rests
    • 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
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • 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
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B60N2/02253—Electric motors therefor characterised by the transmission between the electric motor and the seat or seat parts
    • 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
    • B60N2/16—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 height-adjustable
    • B60N2/18—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 height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/185—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 height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the drive mechanism
    • B60N2/1864—Gear wheel driven mechanism
    • 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
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/2213—Gear wheel driven mechanism
    • 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
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • B60N2/2222—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable the back-rest having two or more parts
    • 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
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/919—Positioning and locking mechanisms
    • B60N2/933—Positioning and locking mechanisms rotatable

Definitions

  • the present invention relates to an adjusting device for a vehicle seat according to the preamble of claim 1.
  • a generic adjusting device is described for example in WO 2012/084158 A1 for adjusting a seat height of a vehicle seat.
  • About the adjusting a first seat part is here adjusted in the form of a seat base relative to a second seat part in the form of a guide rail assembly with attachments for the seat base.
  • the adjusting device has for this purpose a first, about a first axis of rotation rotatable, toothed (that is, provided with a toothing) element in the form of a motor-driven drive pinion and a second toothed element in the form of a toothed segment, which meshes with the drive pinion.
  • the gear segment of the guide rail assembly is assigned and fixed immovably on one of the rails.
  • a constant translation is realized to implement a rotational movement of the drive pinion in an adjustment of the seat frame relative to the guide rail assembly.
  • a gear segment can be immovably fixed to an actuating lever which is rotatable on a rail of the guide rail arrangement is rotatably mounted.
  • a gear segment can be immovably fixed to one of the rails and the drive pinion can be fixed to the rotatable actuating lever.
  • Adjustment devices with comparable gear drives are also used for manual seat height adjustments.
  • Both power-operated and manual adjusting devices can be provided that not only one of the toothed elements, but both toothed elements are rotatable to control an adjustment movement of a first seat part relative to a second seat part.
  • the applied for adjustment drive torque varies relatively strongly depending on the current seat height. For example, a much smaller drive torque is required for lifting in the uppermost end position than when lifting the seat frame from the lowest end position.
  • additional spring elements are provided.
  • the previously known solutions involve some disadvantages. For example, the different mechanical solutions are sometimes extremely complex.
  • An adjusting device has two intermeshing toothed elements, of which at least one is rotatably mounted and cause an adjustment of the first seat part relative to a second seat part of the vehicle seat upon rotation of the at least one rotatable toothed element. It is further provided according to the invention that the two first and second toothed elements each have a toothing with a pitch circle and / or pitch circle diameter changing along the respective toothing, so that over the Adjusting the first seat part, a transmission ratio of the intermeshing first and second toothed elements varies.
  • the invention is thus based on the basic idea that a transmission with a variable transmission ratio is already provided via the teeth of only two intermeshing toothed elements of the adjusting device, wherein a translation dependent on Verstellweg is provided by at both teeth changing pitch circle and / or pitch diameter ,
  • a changing transmission ratio is thus realized by pairing the first and second toothed elements, for example by having a different pitch circle and / or pitch circle diameter in a first area of the toothing of the first toothed element as in an adjoining area of this gearing.
  • the pitch circle (section) and the pitch circle (section) to coincide in the respective area.
  • variable transmission ratio is provided along the adjustment path of the first seat part over changing and preferably non-circular gears, ie, not each running along a circular path with a constant radius.
  • This is understood in particular the possibility of variable engagement angle of a toothing of a toothed element from the first to the last tooth of the toothing and optionally with unequal pressure angle at the other, hereby meshing toothed element to pair.
  • a homogenization of the required drive torque also improved acoustics is achieved in a power-operated adjusting device.
  • an engine load can be kept constant, whereby disturbing engine noise can be reduced to a minimum.
  • a variably variable depending on the displacement translation can also be used to change the adjustment speed at a constant driving speed of the driving toothed element.
  • a profile displacement can be provided on the intermeshing toothed elements.
  • a toothing can in each case in principle be designed so that slipping and supporting over the head orang Vietnamese mitr a tooth or a series of teeth and thus not only a torque transmission over the respective tooth flanks is guaranteed.
  • the different transmission ratios are provided by graduated pitch circle and / or pitch circle diameter of the meshing first and second toothed elements.
  • the toothings of the first and second toothed elements, via which the toothed elements mesh with one another, can in principle be designed such that the transmission ratio changes discretely or continuously several times along the displacement path of the first seat part.
  • the transmission ratio consistently increases over the adjustment path between two possible end positions of the first seat part, falls consistently or falls in at least one portion of the adjustment path, while it rises in another portion of the adjustment.
  • the gear ratio on the adjustment on a turning point so that, for example, the ratio between driving first toothed element and second toothed element initially discretely or continuously increases during an adjustment of the first seat part from a first end position towards a second end position and then from Achieving a certain adjustment again consistently discretely or continuously drops until the first seat part reaches its second end position.
  • the second toothed element is also rotatably mounted about a second axis of rotation to implement a rotation of the first toothed element about its first axis of rotation in an adjustment of the first seat part of the vehicle seat.
  • the distance between the first axis of rotation of the first toothed element and the second axis of rotation of the second toothed element is invariable.
  • the changing Generalnik- and / or Wälznik penmesser are thus coordinated so that a distance of the axes of rotation despite the varying transmission ratio remains constant over the adjustment of the first seat part.
  • the toothing of the two intermeshing toothed elements with the changing pitch circle and / or Wälz Vietnamese bemessern lie in a common plane.
  • the non-circular teeth of the two toothed elements thus extend in a plane along a circumferential line about the respective axis of rotation.
  • portions of the teeth of the first and second toothed elements, which are assigned to different transmission ratios extend in different planes, which are axially offset from each other.
  • At least one of the teeth of the first or second toothed element thus extends, for example, along a uniformly or non-uniformly rising helix on a lateral surface of this toothed element. This includes in particular a (in plan view along a rotation axis) spiral or helical course of the teeth.
  • the first toothed element is formed by a gear element in the form of a drive pinion.
  • the second toothed element may be formed by a rotatable or immovably fixed gear segment. In a rotatably mounted gear segment, this can also be mounted eccentrically.
  • the solution according to the invention is independent of the type of toothing. For example, a helical toothing, an involute toothing or a cycloidal toothing can be provided. In individual areas of the respective toothings of the toothed elements, different toothing types can also be provided for the different gear ratios and thus combined on one of the toothed elements.
  • one of the toothed elements has, for example, a first toothed region with involute toothing and a second toothed region with cycloid toothing connected thereto.
  • a first toothed element designed as a drive pinion is provided with a helical toothing, an involute toothing and / or a cycloidal toothing.
  • this drive pinion can be configured conical.
  • a second toothed element designed as a gear segment extends at a non-right angle inclined to the first axis of rotation of the other first toothed element meshing therewith. If the gear segment itself is rotatably mounted and the axes of rotation of the two toothed elements run parallel to one another, the gear segment in this embodiment consequently also extends at a non-right angle inclined to its (the second) axis of rotation.
  • the gear segment which extends inclinedly relative to the axis of rotation, meshes with a drive pinion which has a helically running toothing.
  • the drive pinion is rotatable by more than 360 °, without having to do without over the complete adjustment of the first seat part variable pitch and / or Wälznik bemesser.
  • At least one stop is provided, over which a rotational path of a toothed element is limited about its axis of rotation.
  • a stop is formed for example on a fixed component of the adjusting device in the form of a projecting extension.
  • the respective toothed element strikes with a counter-stop in order to give the first seat part an end position. Two stops then both possible end positions of the first seat part can be specified.
  • the adjusting device according to the invention can be set up and provided in particular for a seat height adjustment, for an inclination adjustment of a seat pan, for an inclination adjustment of a backrest, for an adjustment of a lower leg support or for an adjustment of a backrest head of a backrest to a vehicle seat.
  • At least one spring element is additionally provided in a variant embodiment.
  • About the at least one spring element is preferably a component of the adjusting device resilient is biased by means of which an adjusting movement generated via the toothed elements can be transmitted.
  • mounting marks that indicate a proper orientation of the toothed elements to each other. Due to the different pitch circle and / or pitch circle diameter can be ensured by the use of mounting marks in a relatively simple manner during assembly that the two respective toothed elements are intended paired with each other and mesh with the desired gear ratio with each other.
  • Such mounting marks are formed, for example, by simple visual markings on the toothed elements.
  • the mounting marks may be contacting one another, which ensure by their contact with each other or their latching together a proper alignment of the two toothed elements to each other during assembly.
  • FIGS 1A to 1 B in fragmentary form a first embodiment of an adjusting device according to the invention for a
  • FIGS. 2A to 2B a detail of a second embodiment of an adjusting device according to the invention for a seat height adjustment
  • FIGS. 3A to 3B are diagrams illustrating a torque curve and a Verstell mecanical screw conveyors for a known from the prior art adjusting device for seat height adjustment;
  • FIGS. 4A to 4B are diagrams for illustrating the torque curve and the adjustment speed curve for an adjusting device according to the invention;
  • FIG. 5 schematically shows a further embodiment of an adjusting device according to the invention for adjusting the inclination of a backrest
  • FIG. 6 schematically shows a further embodiment variant of an adjusting device according to the invention for adjusting a lower leg rest of a vehicle seat
  • FIG. 7 schematically shows a further embodiment of an adjusting device according to the invention for the adjustment of a seat pan of a vehicle rear seat
  • Figure 8 schematically shows another embodiment of an adjusting device according to the invention for the adjustment of a backrest of a vehicle rear seat
  • FIGS. 9 schematically show a further embodiment of an adjusting device according to the invention for adjusting a backrest head of a backrest
  • Figure 10 is a side view of a vehicle seat illustrating a possible position for an adjusting device according to the invention.
  • FIG. 10 shows schematically and in side view a vehicle seat F with a seat side part and a seat pan S (for reasons of simplicity, the reference symbol “S" is used for both components), on which or a backrest R of the vehicle seat F is arranged and optionally relative thereto
  • a seat subframe comprising the seat pan and the seat side part S is adjustable in height relative to a rail arrangement SA
  • the seat underframe is connected to the rail arrangement SA via a plurality of rockers W1 and W2
  • the rockers W1 and W2 are each at joint points for this purpose G1 and G3 on the rail assembly SA and at hinge points G2 and G4 on the Seat base hinged.
  • the seat height is manually or externally operated adjustable to raise or lower the seat base along an adjustment H.
  • the adjusting device V usually comprises a gear stage with at least two intermeshing toothed elements.
  • One of the toothed elements can in this case, for example, by means of a drive motor power-operated or manually offset by an actuating lever in rotation.
  • This (first) driven toothed element for example in the form of a gear member meshes with a likewise rotatable or fixed (second) toothed element to implement the rotation of the driven toothed element in an adjustment movement of the seat base relative to the bottomed rail assembly SA.
  • FIGS. 1A and 1B show a first exemplary embodiment of an adjusting device V designed according to the invention, which is designed and set up for seat height adjustment on a vehicle seat F.
  • a driven first toothed element is formed by a drive pinion 2.
  • the drive pinion 2 for example, manually via an actuating lever 3 or power-operated via a preferably electric motor drive to a rotation driven.
  • a corresponding transmission mechanism known per se can be arranged, for example, on a housing section of the actuating lever 3.
  • the drive pinion 2 meshes with a second toothed element of a gear stage in the form of a gear segment 1 in order to transmit an adjusting movement to the seat frame.
  • the gear segment 1 is for this purpose, for example, rotatably connected to a cross tube of the seat base, which is rotatably mounted on the seat frame. If a drive torque transmitted to the gear segment 1 via the drive pinion 2, the cross tube is rotated about an axis of rotation A. This leads in a manner known per se, for example via at least one pivoting lever or a pair of rockers to an adjusting force on the seat underframe in order to raise or lower it along the adjustment direction H.
  • the drive pinion 2 and the gear segment 1 with teeth 20 and 10 are provided, the changing pitch circle and / or Wälznik penmesser along the respective teeth 20 or 10 have.
  • a distance of the rotation axis A of the gear segment 1 to a rotation or pinion axis B of the drive pinion 2 always remains constant. Due to the variable pitch circle and / or Wälz Vietnamese fashionmesser gear segment 1 to the drive pinion 2, however, the transmission ratio changes over the adjustment of the seat base and thus on the hub.
  • the drive pinion 2 and the gear segment 1 in each case form at least two toothing regions 200, 201 and 100, 101 at their respective toothing 20 or 10, which define mutually different pitch circle and / or pitch circle diameters. Both teeth 20 and 10 are thus out of round.
  • the gear portions 101 and 201 are associated with an upper end position of the seat base and define a much smaller gear ratio.
  • the transmission ratio varies over the adjustment path from over 10 (below) to below 8 (above), eg from about 11 to about 7.5.
  • a lighter ratio between drive pinion 2 and gear segment 1 is thus defined via the two toothed elements 2, 1, while in a higher portion with lower drive forces a heavy gear ratio is defined.
  • the over the adjustment from the lowest end position to the topmost end position falling gear ratio is achieved in that the pitch circle and / or pitch circle diameter of the drive pinion 2 over the circumference of the drive pinion 2 in a circumferential direction (here clockwise) increases and consequently the teeth of the Gearing 20 become larger and the thereto tuned Operanik- and / or pitch diameter of the gear segment 1 over its circumference in an opposite circumferential direction (counterclockwise) becomes smaller and thus reduces the size of the teeth of the teeth 10.
  • variable transmission ratio as a function of the current adjustment of the seat base is achieved in a simple manner that the applied to the drive pinion 2 drive torque over the entire adjustment can be kept relatively constant, while the adjustment of the counteracting torque varies and decreases in the direction of the uppermost end position ,
  • the gear segment 1 is shown together with a portion of a cross tube or a transverse shaft 5, with which the gear segment 1 rotatably, for example by welding, is connected.
  • the teeth 10 and 20 of the gear segment 1 and the drive pinion 2 unlike the variant of Figures 1A and 1B do not substantially extend in one and the same plane, regardless of the current gear ratio, but the The gear ratios 100, 101 and 200, 201 of the two toothed elements 1 and 2 assigned to the different gear ratios are each arranged in axially spaced-apart planes.
  • the toothing 20 of the drive pinion 2 runs here along a rising helix and thus spirally on the outer surface of the drive pinion 2 along the axis of rotation B.
  • the teeth 20 of the drive pinion 2 thus appears in a plan view along the axis of rotation B screw or spiral.
  • the gear segment 1 rotatably mounted at a constant center distance from the axis of rotation B of the drive pinion 2, in turn, has a toothing 10 which runs obliquely to the axis of rotation A of the gear segment 1.
  • the inclination of the gear segment 2 with respect to its axis of rotation A can be seen in particular with reference to FIG 2B. It can be seen that the gear segment 2 extends at an angle ⁇ not equal to 90 ° with respect to its axis of rotation A.
  • oblique gear segment 1 is achieved at a constant center distance of the two axes of rotation A and B, a variable gear ratio on the hub and also a Rotation of the drive pinion 2 by more than 360 ° allows to move the seat frame from the lowest end position to the uppermost end position.
  • FIGS. 3A and 3B show diagrams in which the course of a drive torque M and an adjustment speed v over the displacement s one in its height Adjusted seat base are illustrated in the prior art.
  • FIG. 3A shows diagrams in which the course of a drive torque M and an adjustment speed v over the displacement s one in its height Adjusted seat base.
  • FIG. 3A shows diagrams in which the course of a drive torque M and an adjustment speed v over the displacement s one in its height Adjusted seat base are illustrated in the prior art.
  • FIG. 3A shows diagrams in which the course of a drive torque M and an adjustment speed v over the displacement s one in its height Adjusted seat base are illustrated in the prior art.
  • FIG. 3A shows diagrams in which the course of a drive torque M and an adjustment speed v over the displacement s one in its height Adjusted seat base are illustrated in the prior art.
  • FIG. 3A shows diagrams in which the course of a drive torque M and an adjustment speed v over the displacement
  • the drive torque M to be applied can be significantly equalized.
  • An adjusting device V according to the invention is effectively used not only in a seat height adjustment, but also for the adjustment of other seat parts of a vehicle seat F, especially in such adjusting devices V, where a drive torque for the seat part to be adjusted varies significantly on the adjustment and / or in which the driving Zahnratelement to be rotated more than 270 ° or more than 360 °.
  • the solution according to the invention with a gear stage which provides a variable transmission ratio by means of changing pitch circle and / or pitch circle diameter keeps the applied drive torque comparatively constant and thus keeps the load of a drive motor constant in the case of power-operated adjusting devices.
  • a constant load also achieves constant engine noise and thus improved acoustics.
  • the solution according to the invention is also advantageous in adjustment devices in which particularly high force or a comparatively high speed is required in only certain adjustment ranges.
  • FIGS. 5 to 9 show, by way of example, further variants of an adjusting device V according to the invention on a vehicle seat, with the respective adjusting device V in each case providing a motor 6 for the power-operated adjustment of the respective seat part.
  • FIG. 5 schematically shows an adjusting device V with a gearwheel segment 1 and a backrest-fixed drive pinion 2 for adjusting the inclination of a backrest R relative to a seat underframe.
  • driving pinion 2 causes an adjustment of the backrest R.
  • 6 shows a variant of an adjusting device V for the adjustment of a lower leg support U of a vehicle seat F relative to a seat side part and / or a seat pan S of the vehicle seat F.
  • drive pinion 2 with the driving motor to provide the seat side part and the hereby meshing gear segment 1 on the lower leg support U.
  • FIG. 1 Another possibility for using an adjusting device V according to the invention is illustrated in FIG.
  • adjustment of a seat pan S by means of the adjusting device V is possible by means of a power-operated operation, in order to raise or lower it.
  • a lowering of the seat pan S is desired, for example, in vehicle rear seats to provide additional cargo space or to facilitate entry into the vehicle fund.
  • FIG. 8 illustrates an adjusting device V for adjusting a slope of a backrest R of a vehicle seat F designed as a so-called towing hitch.
  • the adjusting device V is used to adjust a backrest head K a backrest R in its inclination.
  • Allen aforementioned embodiments is common that on the inventively designed gear stage with two toothed elements 1 and 2, each having changing and matched to pitch circle and / or Wälznik penmesser, one of the adjustment position of the respective seat part to be adjusted dependent gear ratio can be provided can.
  • a generated by a motor 6 drive torque can be kept relatively constant, however, the adjustment of the counteracting torque varies over the adjustment s.
  • stops may be provided to limit a rotational travel of the driving pinion 2 or of the driven gear segment 1 and via this an end position of the respective seat part (seat frame according to FIGS. 1A-2B, backrest R corresponding to FIGS FIGS. 5 and 8, lower leg rest U according to FIG. 6, seat pan S according to FIG. 7 or backrest head K corresponding to FIG. 9).
  • At least one spring element may be part of the adjusting device V.
  • Such a spring element then acts on a component of the adjusting device V, for example one of the toothed elements 1 or 2 or a component cooperating therewith, in order to bias it in one direction.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un dispositif de réglage (V) destiné à régler une première partie (R, S, U, K) d'un siège de véhicule (F) par rapport à une deuxième partie (S, R) du siège de véhicule (F) le long d'un trajet de réglage, un premier élément denté (1) du dispositif de réglage (V) pouvant tourner autour d'un premier axe de rotation (A) étant associé à l'une des parties (R, S, U, K) de siège, et un deuxième élément denté (2) du dispositif de réglage (V), qui s'engrène avec le premier élément denté (1) pour régler la première partie (R, S, U, K) de siège par rapport à la deuxième partie (S, R) de siège lors d'une rotation du premier élément denté (1), étant associé à l'autre partie (R, S, U, K) de siège. Selon l'invention, les premier et deuxième éléments dentés (2, 1) présentent chacun des dentures (20, 10) pourvues d'un diamètre de cercle primitif et/ou d'un diamètre de cercle de roulement non constant variant le long de la denture (20, 10) respective, de sorte qu'un rapport de transmission des premier et deuxième éléments dentés (2, 1) s'engrenant l'un avec l'autre varie le long du trajet de réglage (s) de la première partie (R, S, U, K) de siège.
PCT/EP2016/068996 2015-08-21 2016-08-10 Dispositif de réglage pour siège de véhicule WO2017032596A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015216054.8 2015-08-21
DE102015216054.8A DE102015216054A1 (de) 2015-08-21 2015-08-21 Verstelleinrichtung für einen Fahrzeugsitz

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WO2017032596A1 true WO2017032596A1 (fr) 2017-03-02

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WO (1) WO2017032596A1 (fr)

Cited By (2)

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