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
  • B60N2/22—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
  • B60N2/225—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 by cycloidal or planetary mechanisms
  • B60N2/2254—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 by cycloidal or planetary mechanisms provided with braking systems
• • 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
  • B60N2/225—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 by cycloidal or planetary mechanisms
  • B60N2/2252—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 by cycloidal or planetary mechanisms in which the central axis of the gearing lies inside the periphery of an orbital gear, e.g. one gear without sun gear
• • 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
  • B60N2/938—Positioning and locking mechanisms rotatable and provided with braking systems

Definitions

• the invention relates to an adjusting device for a vehicle component, in particular for the backrest of a vehicle seat, with a first fitting part and a second fitting part, wherein the relative position of the two fitting parts to each other by means of an eccentric is variable, which transmits a torque from a drive to the first fitting part so that it rolls on the second impact member and wherein the eccentric comprises at least one eccentric means, which is drivable by a driver, which is arranged on the drive.
• the present invention relates to a vehicle seat with a power-driven adjusting device and an adjusting device for a vehicle component, in particular for the backrest of a vehicle seat, with a first fitting part and a second fitting part, wherein the relative position of the two fitting parts to each other by means of eccentric means is variable and a Rotation of the eccentric means is provided by means of a drive element.
• Such an adjusting device is known from WO 2006/040303, which is, however, designed comparatively expensive.
• Another prior art is DE 10 2004 039 538.
• the disclosed in this publication adjustment has a free play, which is not always desired or not needed.
• From the German patent DE 10 2004 011 268 B3 a Ne Trentsverstellbeschlag for the backrest of a motor vehicle seat with a wobble gear known.
• these known tilt adjusters however, weaknesses in a power-driven design of the adjusting device, in particular material weakening or wear increases in an everyday operation of the inclination adjuster.
• Another object of the present invention is to provide an adjustment device for a vehicle component, in which a highly compact and at the same time highly stable design is selected, so that a such Ne Trentsverstellbeschlag for a lightweight, cost-effective and stable in life is produced and on the other high resistance forces, especially in electric motor drive and in accident situations, can provide.
• the first object is achieved with an adjusting device for a vehicle component, in particular for the backrest of a vehicle seat, with a first fitting part and a second fitting part, wherein the relative position of the two fitting parts to each other by means of an eccentric is variable, the torque from a drive on the first fitting part transmits, so that it rolls on the second fitting part and the eccentric comprises at least one eccentric, which is drivable by a driver, which is arranged on the drive, wherein at least temporarily a frictional engagement occurs when rotating the drive between this and the eccentric ,
• the present invention relates to an adjusting device for a vehicle component, in particular for a motor vehicle component.
• the adjusting device is preferably a so-called recliner with which the position of a backrest of a motor vehicle seat relative to a seat part for increasing the driving comfort and / or for transferring the backrest into a stowage or lying position can be changed.
• a vehicle seat on the right and left of the backrest or of the seat part particularly preferably has such an adjustment device.
• These adjusting devices are then preferably connected to each other by a shaft.
• the vehicle seat may be a seat for one or more persons, so that the vehicle seat may also be a seat, which preferably has a split backrest.
• the adjusting device has at least one first fitting part, which is preferably connected to the backrest of the motor vehicle seat and at least one second fitting part, which is preferably connected to the seat part of the motor vehicle seat, wherein the relative position of the two fitting parts is mutually variable by means of an eccentric.
• the adjusting device according to the invention is therefore a so-called Taumelverstell Nur whose principle operation is known for example from WO 2006/040303 and DE 10 2004 039 538. These references are hereby incorporated by reference and thus are considered part of the disclosure.
• the eccentric transmits a manually or motor-generated torque to the first fitting part, so that this rotates and rolls on the second fitting part.
• the first fitting part has an external toothing and the second fitting part an internal toothing, which mesh with each other.
• the outer toothing preferably has at least one more tooth, so that the first fitting part can wobble in the second fitting part.
• the eccentric has at least one eccentric means, for example a wedge, which is driven, for example, by a driver connected to a rotary drive.
• the driver to the drive for example, a drive bolt is formed.
• This driver first releases the eccentric from his finding and then takes it to turn the first fitting part.
• the mediator can be in two positions, in a neutral and in a drive position. In the neutral position it is spaced from the eccentric means, while it rests in the drive position on the eccentric means. So he has to overcome a certain free play before the eccentric means is driven by the driver.
• the adjusting device results in an applied torque as directly as possible in a change in position between the first and the second fitting part, takes place when turning the drive between the first and the second a frictional engagement; that is, by friction, a torque is transmitted from the drive to the eccentric means, which is sufficiently large to release the eccentric from his finding and so long in the direction of rotation of the drive, until the mediator is applied to the eccentric and thereby assumes the drive function.
• the drive can also be done completely via the frictional connection; ie that in this case the driver could not exist or is used.
• the adjusting device according to the invention is relatively simple and easy to operate. By allowing some free play between the spreader and the eccentric means, it is possible to produce the adjusting device according to the invention with certain manufacturing tolerances without sacrificing an immediate reaction of the transmission to an applied torque.
• the adjustment can be driven clockwise and counterclockwise.
• the drive is preferably a cylindrical component, for example a bolt, with an outer radius which interacts with an inner radius of the eccentric means.
• the radii are designed so differently that it comes to a point or line contact between the drive and the eccentric means. By the contact, a frictional force is transmitted from the drive to the eccentric means, so that this rotates with the drive.
• each eccentric means has two radii which do not have the same center.
• the transition area between the radii interacts with the outer radius of the drive.
• a rotation of the drive relative to the eccentric means to the point or linear contact, by which the frictional forces are transmitted.
• the geometry of the drive and the eccentric means or their position are coordinated with each other so that the frictional engagement Mitauerfern that is not carried out in the vicinity of the driver.
• the point or line-shaped contact of the drive and the eccentric is arranged at a pitch of 1: 1, 5 - 1: 2.5, more preferably 1: 1, 75 - 1: 2.25 of the radius.
• the division is the arc segment of the eccentric measured from its end facing the driver to the point of contact.
• the adjusting device according to the invention preferably has two eccentric means. These are preferably arranged mirror-symmetrically and formed, wherein the driver cooperates in one direction of rotation with the one eccentric and in the other direction of rotation with the other eccentric means. Otherwise, the above applies equally to both eccentric means. Both eccentrics are driven by the drive means regardless of its direction of rotation.
• a spring means is arranged between the two eccentric means that pushes them apart.
• the outer radius of the eccentric or eccentric (s) cooperates with a bearing shell.
• this pair of bearings is executed as low friction.
• the drive for example, a drive pin, connected to a socket, preferably welded.
• the drive for example a drive bolt, is mounted in one or more bearing shells
• the adjusting device according to the invention is particularly suitable for tilt adjustment of the backrest of a motor vehicle seat.
• Another object of the present invention is therefore a motor vehicle seat having the adjusting device according to the invention.
• such an adjusting device is arranged on the right and left of the backrest or of the vehicle seat.
• these adjusting devices are connected to each other by a shaft, which in turn can be driven manually or by motor.
• the second object is achieved by an adjusting device for a vehicle component, in particular for the backrest of a vehicle seat, wherein the adjusting device has a first fitting part and a second fitting part, wherein the relative position of the two fitting parts is mutually changeable by means of eccentric means, wherein a rotation of the eccentric means is provided by means of a drive element, wherein the adjusting device has a non-rotatably connected to the first fitting part central element and wherein the Drive element is provided by the central element stored in an overlap region.
• the tilt adjustment fitting according to the present invention uses various components of a pitch adjustment fitting as known from the patent publication WO 2006/040303 A2. These components relate in particular gear plates, adapters, wedge elements and spring elements wherein the adjusting device according to the present invention beyond these known components special components for adaptation or particularly advantageous use as power-driven adjustment provides, in particular a modified drive element, a modified guide bushing and the central element.
• the disclosure of the patent publication WO 2006/040303 A2 is hereby incorporated by reference at least with regard to the known components in the present patent application.
• the drive element is provided axially secured by means of the central element and the first fitting part or that the drive element is provided axially secured by means of the central element and a fitting member rotatably connected to the first fitting part.
• the drive element has a collar which is arranged between the central element and the first fitting part or between the central element and the fitting element and / or that the drive element has an axial end which is provided projecting into a recess of the central element , wherein the recess is preferably provided as a substantially circular groove .
• the central element and the drive element have a substantially same largest inner diameter.
• the drive element is provided for cooperation with a drive pin, wherein preferably a positive connection between the two is provided with respect to a rotational movement. In this way, the transmission of the drive torque for an adjustment of the adjustment can be accomplished in a simple and secure manner.
• the adjusting device is constructed like a laminate. This makes it possible to provide the adjustment in a modular design and thereby adapt with a relatively low cost to different requirement profiles.
• Another object of the present invention relates to a motor vehicle seat having an adjusting device according to the invention, wherein the adjusting device is provided for power-driven adjustment or wherein the motor vehicle seat has a motor, in particular an electric motor for adjusting the adjusting device.
• Another object of the present invention relates to a method for producing an adjusting device according to the invention wherein in a first process step, the central element and the first fitting part or the central element and the fitting part rotatably connected to the first fitting are welded under axial fixing of the drive element or the collar of the drive element or in that the further components of the adjusting device are mounted in a second method step.
• FIG. 1 shows an exploded view of the invention
• FIG. 2 shows a schematic diagram of the invention
• Figure 3 shows a schematic diagram of an adjusting device according to the prior art.
• FIG. 4 shows an embodiment of the invention
• FIG. 5 shows a further embodiment of the invention
• FIG. 6 shows an additional embodiment of the adjusting device according to the invention.
• Figure 7 shows the main components for an electric motor drive the erfindungsge MAESSEN adjusting.
• Figure 8 shows a part of the adjusting device according to the invention.
• FIG. 10 shows a perspective view of a partially mounted adjusting device according to the invention.
• FIG. 11 shows a perspective view of a mounted adjusting device according to the invention.
• FIG. 12 shows a perspective view of a mounted adjusting device according to the invention.
• Figure 13 shows a schematic representation of a vehicle seat with an adjusting device according to the invention.
• Figure 14 shows a sectional view through two embodiments of the adjustment device according to the invention.
• FIG. 1 shows an exploded view of an embodiment of the adjusting device according to the invention.
• This adjusting device has a backrest adapter 8 and a seat adapter 11. With the retaining plates 6, the seat adapter 11 is attached to the vehicle seat, bolted here.
• the backrest adapter 8 is connected to the backrest of the vehicle seat, preferably welded.
• the person skilled in the art recognizes that these functionalities of the two adapters 8, 11 can also be reversed.
• the relative position of the backrest adapter 8 relative to the seat adapter 11 is determined by means of an eccentric 1, which has two wedges 2. These two wedges 2 are preferably arranged symmetrically and particularly preferably mirror-symmetrically to a straight line passing through the axis of rotation D.
• the two wedges are pressed apart with an energy store, here a spring 10, preferably an annular spring whose ends engage in notches in the wedges 2.
• the energy storage 10 is part of the eccentric.
• the wedges 2 are at least partially disposed in a bearing shell 13 and are supported on this.
• the bearing shell 13 the friction between the eccentric and the seat adapter 11 can be reduced and a uniform concentricity of the eccentric can be achieved.
• the device according to the invention on a drive pin 4, which is driven manually or by motor.
• This drive pin 4 transmits its rotary motion, as will be described in more detail below, on the Eccentric 1, so that when turning the drive 4 of the externally toothed seat adapter 11 rolls in the internally toothed backrest adapter 8.
• the drive pin 4 is connected to a sleeve 7, preferably welded.
• the eccentric 1 of the device according to the invention is shown.
• the eccentric serves, as already mentioned, to drive the externally toothed internal gear within an internally toothed, at least one tooth more outer gear. It is therefore a so-called wobble gear.
• the eccentric is formed by wedges 2, which are pressed apart to compensate for Tangentialspiel in the wobble mechanism by a spring 10, not shown here.
• the drive of the wedges 2 in the one or opposite direction of rotation is at least temporarily by a MitOSEeer 3, which is integrally formed on the drive pin 4.
• an immediate reaction of the transmission is desirable. According to the invention, therefore, it is intended to exert a torque from the rotating drive bolt 4 on the relevant wedge 2 by friction, even before the contact of the wedge 2 with the driver 3.
• the arc-shaped wedges 2 therefore have an inner radius of curvature R, which is greater than the outer radius r of the drive pin 4.
• Approximately in the range of a 1: 2 division of the inner arc of the driver close wedge 2 mit psychologyfernen a contact point P or, forms a line of contact , over which the assigned (here the right) wedge 2 is released from its clamping already before contact with the driver 3 and displaced in the direction of rotation of the drive pin 4.
• the eccentric 1 causes a tumbling motion between the two Fitting 8, 11.
• FIG. 4 shows a first construction of an adjusting device according to the invention.
• the essential parts of the mechanism are the seat part side holding plates 6, a socket 7, the backrest adapter 8 with internal gear 9, the spring 10, which spreads the wedges 2, the seat part adapter 11 with the externally toothed gears 12, the bearing shell 13 and the drive pin 4 with the bushing 7 rotates in this case together with the collar provided with a drive pin 4, with which it is rotatably connected, for example by welding.
• FIG. This embodiment substantially corresponds to the embodiment of Figure 4, wherein in this embodiment, the drive pin 4 rotates in two bearing shells 14, 15 and welded at each end for axial securing with end plates 16, 17.
• FIG. 6 shows a further embodiment of the adjusting device according to the invention.
• the adjusting device on a bearing 18 which is connected to the backrest adapter 8.
• This drive has on its inner side form and / or adhesion means 4 ' , for example, teeth, which cooperate with corresponding form and / or adhesion means of a motor drive.
• FIG. 7 schematically shows the main components of the modifications or components necessary for the power-driven variant of an adjusting device 10 according to the invention.
• Reference numeral 1 denotes a drive element for arrangement in a power-driven adjusting device according to the invention.
• Reference numeral 2 denotes a guide bush for arrangement in a power-driven adjusting device according to the invention.
• Reference numeral 3 denotes a ZEntragelement for arrangement in a power-driven adjusting device according to the invention.
• FIG. 8 shows a part of the adjusting device 10 according to the invention schematically.
• a first fitting part 4 is shown in addition to the central element 3 and the drive element 1.
• FIG. 9 is a schematic representation of a section through the adjusting device 10 according to the invention.
• an axially extended (along the axis of rotation of the adjusting 10 extending) overlap region 5 of the central element 3 and the drive element 1 can be seen.
• the cohesive connection in particular a weld and in particular a laser welding
• a Collar 1.1 of the drive element 1 and thus simultaneously the drive element 1 itself is fixed against axial displacement along the axis of rotation of the adjusting device 10.
• FIG. 14 schematically shows a variant embodiment of the adjusting device 10 according to the invention shown in FIGS. 7, 8 and 9 in a sectional representation through the adjusting device 10 according to the invention.
• the same reference numerals from previous figures designate the same components or parts of the adjusting device 10.
• FIG. 10 schematically shows a perspective view of a partially mounted adjustment device according to the invention.
• the adjusting device according to the manner specified in the publication WO 2006/040303 A2 way assembled, namely with eccentric means 6 in the form of, for example wedges, a spring, gear plates 8 and a second Fitting part 9 and a guide bush.
• eccentric means 6 in the form of, for example wedges, a spring, gear plates 8 and a second Fitting part 9 and a guide bush.
• FIGS. 11 and 12 Two perspective views of the fully assembled power-driven adjusting device 10 according to the invention are shown schematically in FIGS. 11 and 12.
• the guide bush 2 is welded to the drive element and / or to the first fitting part 4 or the second fitting part 9.
• the adjusting device 10 is provided on a vehicle seat as the vehicle component and that the adjusting device 10 is provided for the inclination adjustment of the backrest 20 of a vehicle seat 40 which also has a seat part 30, in addition to the backrest 20. This is shown schematically in FIG.

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• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Chairs For Special Purposes, Such As Reclining Chairs (AREA)
• Seats For Vehicles (AREA)

Priority Applications (3)

Applications Claiming Priority (6)

Publications (1)

Family

ID=39229592

Family Applications (1)

Country Status (4)

Cited By (3)

Families Citing this family (1)

Citations (2)

Family Cites Families (4)

• 2008
  • 2008-01-02 WO PCT/EP2008/000005 patent/WO2008080999A1/de not_active Ceased
  • 2008-01-02 EP EP08700963.5A patent/EP2107977B1/de not_active Not-in-force
  • 2008-01-02 PL PL08700963.5T patent/PL2107977T3/pl unknown
  • 2008-01-02 JP JP2009544396A patent/JP2010514527A/ja active Pending
• 2014
  • 2014-09-09 JP JP2014183440A patent/JP5908040B2/ja not_active Expired - Fee Related

Patent Citations (2)

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