• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In a steering column for a motor vehicle, which is adjustable in at least one adjustment direction (1, 2), one of a drive motor (15, 35) is adjustable in the adjustment direction (1, 2) or in at least one of the adjustment directions (1, 2). driven spindle drive (14, 34) is provided, which has a in an axial direction extending threaded spindle (16, 36). The drive motor (15, 35) is connected to a drive motor (15, 35) carrying part (9) of the steering column via a damping unit (20, 40) having a primary connecting part (21) with a first contact surface (21 d) and a secondary connecting part (22) having a second abutment surface (22c), wherein the first and the second abutment surface (21 d, 22c) in the axial direction of the threaded spindle (16, 36) are spaced from each other and an elastomeric or viscoelastic damping material (26) between the first and the second contact surface (21 d, 22 c) is arranged
    公开号:AT511962A4
    申请号:T2852012
    申请日:2012-03-06
    公开日:2013-04-15
    发明作者:
    申请人:Thyssenkrupp Presta Ag；
    IPC主号:
    专利说明:

    06/03 2012 14:20 FAX +43 5522 73359 Hofmann & Fechner @ 0006/0030
    24608/33 / ss 120229 1
    Steering column for a motor vehicle
    The invention relates to a steering column for a motor vehicle, which is adjustable in at least one adjustment, wherein for adjusting in the adjustment direction or in at least one of the adjustment directions provided by a drive motor spindle drive is provided, the erstre-5 in an axial direction having cogging threaded spindle.
    In the case of adjustable steering columns for motor vehicles, the steering spindle carrying the steering wheel and thus also the steering wheel can be adjusted relative to a mounting part via which the steering column can be fastened to the body of the motor vehicle, which represents a comfort function of the steering column. Usual adjustment are here a Längenversteliung and / or a height or tilt adjustment. In addition to adjustable steering columns, in which the adjustment is performed manually after opening a clamping mechanism, also electrically adjustable steering columns are known. In these, the adjustment in the adjustment of the 15 length adjustment and / or in the adjustment of the height or inclination adjustment is motorized by means of at least one drive motor. A common training provides in this case that the drive motor is part of a spindle drive. Spindle drives, which are also referred to as screw jacks or spindle drives, have to implement a rotary movement in a translational movement movement to a threaded spindle on whose outer thread a threaded nut is arranged. Either the threaded nut is driven by the drive motor via corresponding gear members and the threaded spindle is axially displaced or the threaded spindle driven by the rotation of the threaded spindle and the spindle nut axially adjusted by the rotation of the threaded spindle. The drive of the 25 threaded nut or threaded spindle is generally carried out by means of a arranged on a motor shaft worm, which is in engagement with a worm gear, which on the outer circumference of the spindle nut (in the case of the drive 06/03/2012 14:26
    No.: R621 P. 006/030 06/03 2012 14:20 FAX> 43 5522 73359 Hofmann & Fechner @ 0007/0030
    2 of the spindle nut) or on the outer circumference of a rigidly connected to the threaded spindle gear (in the case of a drive of the threaded spindle) is arranged.
    An electrically adjustable steering column with a spindle drive, for example, 5 is known from DE 10 2007 039 361 A1.
    A general problem with electrically adjustable steering columns is to reduce noise during adjustment. For this purpose, DE 10 2006 036 183 B4 proposes a belt drive which acoustically separates the electric drive motor 10 from the adjusting mechanism. DE 10 2009 057 388 proposes a piezoelectrically driven active vibration damping. Both technologies are very complicated and expensive.
    In the electrically adjustable steering column known from EP 1 486 395 B1, a transmission part with a ball head is provided at 15 of the axially adjustable spindle nut of the spindle drive, which protrudes into a cylindrical sleeve. This is provided with an elastomeric lining, whereby a noise reduction is achieved. This technique is complicated, since the guide with which the spindle nut transmits the movement to the adjustable steering column part must be formed very precisely to avoid rattling and jamming. Also, the noise reduction achieved by the training shown in this document is limited.
    From WO 2010/069434 AI embodiments of electrically adjustable steering columns out, for Geriuschreduktion a housing part, in particular 25 of an electric drive motor, and / or a holding part is made of a designed as a composite sheet metal, wherein the composite material, a first metallic layer and a second metallic layer, between which a layer of a viscoelastic material or an elastomer is arranged.
    The object of the invention is to provide a simple and inexpensive and effective noise reduction in a steering column of the type mentioned. He- 06/03/2012 14:26
    No.: R621 P.007 / 030 30 06/03 2012 14:21 FAX -ι 43 5522 73359 Hofmann & Fechner 00008/0030 This is achieved by a steering column according to the invention, according to the invention with the features of claim 1. The dependent claims relate to advantageous developments of the invention. In the steering column according to the invention, the steering column is adjustable in at least one adjustment by means of a drive motor driven by a spindle drive, wherein the drive motor is connected to a supporting part of the steering column via a damping unit. The damping unit comprises a primary connecting part, which has a first contact surface, and a secondary connecting part, which has a second contact surface. The first and the second
    Contact surface are spaced apart in the axial direction of the threaded spindle. Between the first and second abutment surfaces is an elastomeric or viscoelastic damping material in contact with the first and second abutment surfaces. When acting on the damping device 15 force or force component, which acts in the axial direction of the threaded spindle in the sense of approximation of the first and the second contact surface, the damping material arranged between the first and the second contact surface is subjected to pressure. However, under a compressive loading of the damping material, the stiffness of the damping unit is advantageously higher (i.e. the force opposing an approach of the first and second abutment faces is higher than a thrust load of the damping material, ie, a displacement of the primary relative to the secondary link in a direction perpendicular to the axial direction the threaded spindle acting force or force component. This achieves anisotropic system behavior.
    Thus, the vibrations introduced by the spindle drive in the steering column can be kept low, the coupling of the spindle drive to the drive motor bearing part of the steering column can still be made relatively stiff. In other words, an elastic decoupling of the drive motor having the spindle drive is achieved while maintaining the rigidity in the main force direction (= axial direction of the threaded spindle). The preservation of rigidity 06/03/2012 14:27
    No .: R621 P.008 / 030 06/03 2012 14:22 FAX ^ 43 5522 73359
    Hofmann & Fechner @ 0009/0030 4 in the main force direction is essential because otherwise the driver's adjustment and feel would be adversely affected. Conveniently, one of the connecting parts, for example, the primary Ver binding part, with the drive motor directly or indirectly in rigid or articulated connection, while the other of the connecting parts, such as the secondary connecting part, with the drive motor supporting part of the steering column directly or indirectly in rigid or articulated connection stands. The surface normal to the first and the second contact surface are preferably parallel to each other, but are directed in opposite directions, wherein the connecting parts in particular each have a plate-shaped portion which is perpendicular to the axial direction of the threaded spindle and having the respective contact surface. 15
    The damping material arranged between the first and the second contact surface advantageously has a plate-shaped layer which is perpendicular to the axial direction of the threaded spindle and whose two side surfaces spaced in the axial direction of the threaded spindle bear against the first and second contact surfaces.
    An advantageous embodiment of the invention provides that the primary connection part has a third abutment surface facing in the opposite direction as the first abutment surface, and the secondary connection part has a fourth abutment surface facing in the opposite direction as the second abutment surface wherein the third and fourth abutment surfaces are spaced apart in the axial direction of the threaded spindle and an elastomeric or viscoelastic damping material is located between the third and fourth abutment surfaces which is in contact with the third and fourth abutment surfaces. In a force acting on the damping device 30 or force component, which acts in the sense of a mutual displacement between the primary and the secondary connecting part in the axial direction of the threaded spindle, thus either the .009 / 030 06/03/2012 14:28 No .: R621 06/03 2012 14:22 FAX +43 5522 73359 Hofmann & Fechner @ 0010/0030 06/03 2012 14:22 FAX +43 5522 73359 Hofmann & Fechner @ 0010/0030
    • · · * ««; «• • · · · · # ··· · · * # * * 5 between the first and the second contact surface arranged damping material (in the case of the force direction in one of the axial directions of the threaded spindle!) Or between the third and the fourth contact surface arranged damping (in the case of a force in the other direction of the axial directions of the threaded spindle 5 despindel) applied pressure.
    The damping material arranged between the third and the fourth contact surface advantageously has a plate-shaped layer which is perpendicular to the axial direction of the threaded spindle and whose two abut in the axi-10 ale direction of the threaded spindle side surfaces abut the third and fourth abutment surface. In this case, separate damping parts may be provided which form the damping material arranged between the first and the second contact surface and that between the third and the fourth contact surface. The layers arranged between the first and the second contact surface and between the third and the fourth contact surface could also be sections of a common damping part.
    Preferably, the damping material arranged between the third and the fourth contact surface is! formed of the same material as that arranged between the first and 20 of the second abutment surface damping material. Conveniently have perpendicular to the axial direction of the threaded spindle standing plate-shaped sections of the primary and secondary connecting part on the third and the fourth contact surface. 25
    A preferred embodiment of the invention provides that the primary connecting part has a U-shaped configuration, wherein the first and third contact surfaces are formed by the mutually facing surfaces of U-legs of the primary connecting part, which by a base leg together ver 30 are bound, and that the secondary connecting part protrudes into the intermediate space between the two U-legs, wherein the second and the fourth contact surface in particular from the spaced-away surfaces of one in the intermediate 06/03/2012 14:28
    No .: R621 P.010 / 030 06/03 2012 14:23 FAX +43 5522 73359 Hofmann & Calculator 00011/0030 ·· »* ·· * * * *» »» f I > It can be formed between the U-legs of the secondary connecting part. For certain applications, however, it may be provided at substantially the same con struction to arrange some or all of the bearing surfaces provided in the respective embodiment against each other at a small angle inclined. Such angles are preferably less than 7 °, wherein in the case of the deviation of 0 °, the angle is particularly preferably at least 1 °. Accordingly, in such an application detail, preferably, the first abutment surface is inclined relative to the second abutment surface by an angle of less than 7 ° and / or, in the case of the corresponding embodiment, the third abutment surface relative to the fourth abutment surface an angle of less than 7 ° inclined. The angle of inclination, if not 0 °, is preferably greater than 1 °. 15
    It can also be provided, in the event that first, second, third and fourth contact surfaces are provided, to arrange only the first contact surface inclined relative to the third contact surface in the range of 1 ° -7 °. It can also be provided, in the event that first, second, third and fourth contact surfaces 20 are provided, to arrange exclusively the second contact surface with respect to the fourth contact surface in the region of 1 ° -7 ° inclined. In the event that a substantially U-shaped configuration of the primary connecting part is provided, the inclination is advantageously designed such that the enlarged imaginary contact surfaces intersect on the side of the base leg 25 facing away from the contact surfaces.
    By such a little inclined arrangement, on the one hand the noise insulation can be improved by better scattering effect and on the other hand, the stiffness is only slightly reduced. This is particularly advantageous if the noise excitation spectrum of the electric motor comprises a broad frequency range and / or a frequency range with many noise components at frequencies below 100 Hz. 06/03/2012 14:29
    No .: R621 P. 011/030 06/03 2012 14:24 FAX 43 5522 73359 Hofmann & Fechner @) 0012/0030 7
    A damping unit according to the invention can be used in conjunction with the spindle drive for the length adjustment and / or with the spindle drive for the height or tilt adjustment. 5
    To enable the height or tilt adjustment is a steering shaft bearing pivot unit of the steering column relative to the mounting part swivel-bar, wherein the pivoting is carried out by means of a drive motor driven by a spindle drive and in this case the drive motor via a damping unit with the pivot unit or with the mounting part in connected as described above. In this case, a connection with the pivoting unit is preferred. The spindle drive, the drive motor and the damping unit for the height or inclination adjustment are referred to in the sequence as a pivot spindle drive, swing drive motor and pivot damping unit.
    To enable the adjustment of the length of the steering column, the steering shaft rotatably overlapping mantle unit relative to the mounting member in the adjustment of the length adjustment displaced, said displacement, if the Lenksäu-20 le is adjustable in height or inclination, preferably realized in that the Manteieinheit is slidably mounted by the pivoting unit in the adjustment of the length adjustment. The length is adjusted by means of a drive motor driven by a spindle drive, wherein the drive motor is connected via a damping unit with the pivot unit or the shell unit or the mounting part in the manner described above. The connection with the pivot unit is preferred here. The spindle drive, the drive motor and the damping unit for the length adjustment are referred to in the following as sliding sliding spindle drive, displacement drive motor and displacement damping unit.
    The pivoting of the pivoting unit relative to the mounting part is preferably carried out by pivoting a control lever on which the pivot 06/03/2012 14:29
    No .: R621 P.012 / 030 30 06/03 2012 14:24 FAX +43 5522 73359 Hofmann & Fechner © 0013/0030 m
    Spindle drive attacks and is pivotally mounted on the pivoting unit and the mounting part. In an advantageous embodiment of this adjusting lever is provided that this is made of a designed as a composite sheet, the composite material having a first metallic layer and a second me-5 tallische layer, between which a third layer of a viscoelastic material or a Elastomer is arranged. About this lever transmitted vibrations, especially in the form of structure-borne noise can be damped. In an advantageous aspect of the invention, which is also to be regarded as independent, a steering column for a motor vehicle which is adjustable in at least one adjustment direction, wherein a spindle drive driven by a drive motor is provided for adjustment in the adjustment direction or in at least one of the adjustment directions a threaded spindle extending in an axial direction, at least one transmission element which, for transmitting a movement of the spindle drive or one of the spindle drives to a component of the steering column which is adjustable in the adjustment direction or one of the adjustment directions, on the one hand with the spindle drive or one of the spindle drives, preferably pivotable, and on the other hand with the adjustable member of the steering column ver-20 is connected. The transmission element is made of a metal sheet designed as a composite material, wherein the composite material has a first metallic layer and a second metallic layer, between which a third layer of an elastomeric or viscoelastic material is arranged. Such a steering column can be combined with other features mentioned above, individually or in combination.
    In a steering column which is adjustable at least in height or inclination, the aforementioned transmission element, which is formed from the described composite material, can be an adjusting lever which can be attached to a mounting part which can be fastened to the body of the motor vehicle and to a height-adjustable link. respectively. Inclination adjustment of the steering column with respect to this mounting part ver-pivoting pivot unit is pivotally mounted. 06/03/2012 14:30
    No .: R621 P.013 / 030 06/03 2012 14:25 FAX η 43 5522 73359 Hofmann & Fechner @ 0014/0030
    9
    In the case of an at least length-adjustable steering column, the abovementioned transmission element, which is formed from the described composite material, may be a tab which engages with the component adjustable in the adjustment direction of the length adjustment, in particular a jacket unit which rotatably supports the steering spindle , preferably pivotable, is connected.
    A combination of a height or inclination adjustment and a length adjustment is advantageously possible, wherein both said lever and 10, said tab are formed from the composite material described above.
    Further advantages and details of the invention are explained below with reference to the accompanying drawings. In this show: 15
    Fig. 1 is an oblique view of an embodiment of a steering column according to the invention;
    FIG. 2 shows the steering column of FIG. 1 in an oblique view from a different angle with respect to FIG. 1; FIG. 20 is a view of the steering column from below;
    4 shows a side view, viewing direction D in FIG. 3;
    Fig. 5 is a section along the line AA of Fig. 3;
    6 shows an oblique view of the spindle drive for the height or inclination adjustment and the pivot damping unit connected thereto; FIG. 7 shows an oblique view of the swivel-damping unit from a different angle from FIG. 6; FIG.
    FIG. 8 is a side view, looking E in FIG. 3; FIG.
    Fig. 9 is a section along the line CC of Fig. 3;
    Fig. 10 is a section along the line BB of Fig. 8; FIG. 11 shows a cross section through the adjusting lever; FIG.
    Fig. 12 is a cross section through the tab. 06/03/2012 14:31
    No .: R621 P.014 / 030 14:25 FAX τ43 5522 73359 Hofmann & Fechner @ 0015/0030 14:25 FAX τ43 5522 73359 Hofmann & Fechner @ 0015/0030
    99 # ··································································································································································
    An embodiment of a steering column according to the invention is shown in the figures. In the illustrated embodiment, the steering column is electrically adjustable both in the adjustment direction 1 of the height or inclination adjustment and in the adjustment 2 of the length adjustment.
    The steering column comprises one of a jacket unit 3 (which could also be referred to as a jacket tube) rotatably mounted steering shaft 4, to which at a steering wheel-side end 5 a not shown in the figures steering wheel is attached. To enable the length adjustment, the steering shaft 4 in a known manner on two mutually telescoping sections. To the steering shaft 4 follow in the direction of the steering gear further Lenkspindelabschnitte, wherein the connection takes place via a universal joint 6.
    To attach the steering column on the chassis of the motor vehicle serve a rear and a front mounting part 7.8. In the exemplary embodiment, the mounting parts 7, 8 are separated from each other and are mounted separately on the motor vehicle. An interconnected training is conceivable and possible.
    The jacket unit 3 is supported by a pivoting unit 9 in the adjustment direction 2, which is parallel to the longitudinal axis 4a of the steering shaft 4, slidably mounted. The pivoting unit 9 is pivotally connected to the front mounting part 8 about the right perpendicular to the longitudinal axis 4a of the steering shaft 4 and horizontally mounted in the mounted pivot axis 10 and thereby lOverschwenkbar relative to the front mounting part 8 and thus with respect to the rear mounting part 7 about the pivot axis.
    In principle conceivable and possible, it would also be that the pivot axis of the pivot unit 9 is formed by the universal joint 6 (which is supported accordingly). The front mounting part 8 could then be omitted.
    For pivoting the pivoting unit 9 relative to the rear mounting part 7 is an adjusting lever 11, which on the pivoting unit 9 about the pivot axis 12 and P.015 / 030 06/03/2012 14:31 No .: R621 06/03 2012 14:26 FAX +43 5522 73359 Hofnann & Fechner 00016/0030 «· · * * · 0« »· * ··· * ··· 9 * • · · · V · # 4« • 4 · tat »* ti · ft I Φ a» a »* Is mounted pivotally on the rear mounting part 7 about the pivot axis 13, wherein the pivot axes 12,13 are parallel to the pivot axis 10 ···············. During the pivoting of the control lever 11 about the pivot axis 13, the pivot unit 9 is pivoted about the pivot axis 10 The pivot axis 10 can ge-5 compared to the front mounting part 8 in the adjustment 3 move something (by the arrangement of this pivot axis forming bolts in slots the mounting part 8). For length compensation and one of the other rotatable mounting of the actuating lever 11 formed openings may be formed as a slot. 10
    The pivoting of the adjusting lever 11 about the pivot axis 13 takes place by means of a pivoting spindle drive 14. This comprises an electric pivot drive motor 15, which are shown in the sectional view of FIG. 5 only strongly schematized or indicated by dashed lines via gear members, is connected to 15 a threaded spindle 16. On the external thread of the threaded spindle 16 a driven by the pivot drive motor 15 spindle nut 17 is arranged. By rotation of the spindle nut 17, the threaded spindle 16 is displaced in its axial direction (in the direction of its longitudinal axis). The threaded spindle 16 is connected to the adjusting lever 11 about the parallel to the pivot axes 12,13 lying 20 pivot axis 18 pivotally connected.
    The drive of the spindle nut 17 is effected by means of a arranged on the output shaft of the pivot drive motor 15 screw, which is engaged with an outer circumferential to the spindle nut 17 worm gear. 25
    The swivel drive motor 15 is connected to the swivel unit 9 via a swivel-damping unit 20. For this purpose, a primary connecting part 21 of the swivel-damping unit 20 is connected pivotably about a pivot axis parallel to the pivot axes 12, 13, 18 to a bearing part 23 which supports 30 gear parts of the swivel-spindle drive 14 and to which the pivoting
    Drive motor 15 is attached. The pivotable connection is via a rigidly connected to the primary connecting part 21 pivoting part 25. Further is a 06/03/2012 14:32
    No .: R621 P.016 / 030 06/03 2012 14:27 FAX +43 5522 73359 Hofmann & Fechner 3) 0017/0030
    l »k ·» · 12 secondary connection! 22 of the swivel-damping unit 20 is attached to the pivot unit 9 by means of connecting screws 24.
    The primary connection part 21 has a rigid U-shaped configuration with first 5 and second legs 21a, 21b which are interconnected by a base leg 21c. The secondary connecting part 22 has a web 22a, which projects into the space lying between the legs 21a, 21b. With the web 22 a mounting web 22 b is rigidly connected, which has holes for the passage of the connecting screws 24. 10
    The mutually facing surfaces of the first and second legs 21a, 21b form first and third abutment surfaces 21d, 21e. The spaced apart surfaces of the web 22a form second and fourth abutment surfaces 22c, 22d. Between the first and the second contact surface 21 d, 22 c, which are spaced apart in the axial direction of the threaded spindle 16 from each other and thus have a gap between them, a damping material 26 is arranged. Between the third and fourth Anlagefäche 21 e, 22 d, which are spaced apart in the axial direction of the threaded spindle 16 from each other and thus have a gap between them, a damping material 27 is arranged. The damping material 20 26 has a first side surface, with which it bears against the first contact surface 21 d and a second side surface, with which it rests against the second contact surface 22 c. The damping material 27 has a first side surface, with which it rests against the fourth Anlagefiäche 22d and a second side surface with which it rests against the third contact surface 21 e. The first side surface of the damping material 25 26 and the first side surface of the damping material 27 are directed in the same direction Rich. The second side surface of the damping material 26 and the second side surface of the damping material 27 are directed in the same direction.
    Preferably, the damping material 26 and the damping material 27 are identical. The formation of an elastomer, in particular rubber elastomer, is preferred. Also a training from another elastomeric material, for example 06/03/2012 14:33
    No .: R621 P.017 / 030 06/03 2012 14:27 FAX +43 5522 73359 Hofmann & Fechner 00018/0030 »*» · «··· * *« «« «« * · · »i · ·« ♦ ». · · · · · ·« «« «« ··
    It is also conceivable and possible to use a thermoplastic elastomer as well. Furthermore, training from a viscoelastic material could be provided.
    In the embodiment shown, the damping materials 26, 27 formed by ge-5 parts separated. Also, a one-piece design, wherein an existing damping material connecting portion extends through the region between the base leg 21c and the free end of the web 22a, is conceivable and possible. Conveniently, since the damping material 26, 27 is substantially incompressible, the pivot damping unit 20 is relatively stiff with respect to forces acting in the axial direction of the threaded spindle 16. With respect to forces that act at right angles to the axial direction of the threaded spindle 16, the stiffness is much lower. 15
    Since structure-borne noise on the way highest rigidity flows, a vibratio ns reducing formation of the control lever 11 is advantageous. For this purpose, the adjusting lever 11 consists of a composite material in the form of a multilayer, sandwich-type sheet, in which a layer of a 20 elastomeric or a viscoelastic material is provided between two metallic layers. It can e.g. the materials mentioned in connection with the damping material 26, 27 are used. The two metallic cover layers can be made of steel or a light metal, preferably with wall thicknesses in the range of 0.3 mm to 1 mm. The intermediate insulating layer may have a thickness in the range 25 from 0.03 mm to 0.1 mm. This composite may be tabular or ribbon shaped and processed substantially like conventional steel sheet.
    In order to displace the jacket unit 3 with respect to the pivoting unit 9 in order to carry out a length adjustment of the steering column, a displacement
    Spindle drive 34 which is driven by a displacement drive motor 35. The sliding spindle drive further comprises a threaded spindle 36, on the Au 06/03/2012 14:33
    No .: R621 P.018 / 030 06/03 2012 14:28 FAX -43 5522 73359 Hofmann & Fechner @ 10019/0030 14 ßengewinde a driven by the displacement drive motor spindle nut 49 is arranged. The drive of the spindle nut can be done in the same manner as described in connection with the pivot spindle drive 14. The threaded spindle 36 is pivotally connected to a tab 28 which is attached to the Mante-5 leinheit 3 and protrudes through a slot 29 in the pivoting unit 9 from this.
    The displacement drive motor 15 is connected to the pivot unit 9 via a displacement damping unit 40. Since the design of the displacement-10 damping unit 40 in the embodiment shown is substantially identical to the pivot-damping unit 20, the mutually corresponding parts are provided with the same reference numerals and reference is made to the corresponding description of the pivot-damping unit 20. The primary connecting part 21 is connected here via the pivoting part 45 to the bearing part 43 of the sliding-15 spindle drive 34. For connecting the secondary connecting part 22 with the pivoting unit 9 connecting screws 44 serve.
    The tab 28 is preferably made of a composite material in the form of a multilayer, sandwich-type sheet, in which a layer of an elastomeric or a viscoelastic material is provided between two metallic layers. The basic structure and the materials can be the same as the lever 11 is formed.
    Other parts may be formed from such a composite material, 25 for example, the housing of the pivot drive motor 15 and / or the push-push drive motor 35th
    The respective damping material 26, 27 of the swivel-damping unit 20 and the displacement-damping unit 40 is connected to the respective connecting part 21, 22 30 by pressing and / or scorching and / or gluing. As a redundant backup pinnacles can be provided by pins 30, which are formed in particular of plastic. It will be a redundant 06/03/2012 14:34
    No.: R621 P.019 / 030 06/03 2012 14:28 FAX +43 5522 73350 Hofnann & Fechner 00020/0030 ♦ ··· ··· · · ♦ · · * * »» «* • I < * * * 4 * * I 4 * * t * 4 * 4 * V * * * * * * * * «« * 15 positive locking against withdrawal, but which transmits only a small amount of vibration. This additional pinning serves in particular to secure the connection even with very large loads, as they can occur, for example, in the event of a crash. 5
    With sufficient flexibility of the threaded spindle 16, the primary connecting part 21 could also be rigidly connected to the bearing part 23. 10 With sufficient flexibility of the threaded spindle 36 and / or a sufficiently accurate guidance of the shell unit 3 with respect to the pivot unit 9, the secondary connecting part 22 could also be rigidly connected to the bearing part 43.
    In a modified embodiment of the invention could also be provided for the height or 15 tilt adjustment and / or for the length adjustment, that the threaded spindle from the respective drive motor 15, 35 is rotated and arranged on the threaded spindle spindle nut is thereby adjusted axially.
    Training with more or less contact surfaces of the primary and the secondary 20 ren connecting part, between each of which a damping material 26,27 is arranged, are conceivable and possible.
    The swivel spindle drive 14 and thus the swivel drive motor 15 could also be attached via the swivel-damping unit 20 to a vehicle-fixed mounting part 25, for example the mounting part 7.
    The sliding spindle drive 34 and thus the displacement drive motor 35 could also be attached to the shell unit 3 via the displacement damping unit 40. An attachment to a vehicle-mounted mounting part, for example, the rear mounting part 7 is conceivable and possible. 06/03/2012 14:34
    No .: R621 P, 020/030 06/03 2012 14:29 FAX +43 5522 73359 Hofmann & Fechner @ 0021/0030
    16
    Where applicable, all features illustrated in particular embodiments of the invention may be freely combined with one another without departing from the scope of the invention. 5 06/03/2012 14:35
    No .: R621 P.021 / 030 06/03 2012 14:29 FAX 1 43 5522 73359 Hofmann & Fechner © 0022/0030 »f ····· * 17
    Legend to the reference numbers: 1 adjustment direction 30 21e third contact surface 5 2 adjustment 22 secondary connecting part 3 shell unit 22a web 4 steering spindle 22b mounting bar 4a longitudinal axis 22c second contact surface 5 steering wheel side end 35 22d fourth contact surface 10 6 universal joint 23 bearing part 7 rear mounting part 24 connecting screw 8 front Mounting part 25 pivoting part 9 pivoting unit 26 damping material 10 pivot axis 40 27 damping material 15 11 lever 28 tab 12 pivot axis 29 slot 13 pivot axis 30 pin 14 pivot spindle drive 34 sliding spindle drive 15 pivot drive motor 45 35 displacement drive motor 20 16 threaded spindle 36 threaded spindle 17 spindle nut 40 Displacement damper unit 18 Pivot shaft 43 Bearing part 19 Worm 44 Connecting screw 20 Swivel damping unit 50 45 Swivel part 25 21 Primary connection part 46 First metallic layer 21a Leg 47 second metallic layer 21b leg 48 third layer 21c base leg! 49 Spindle nut 21d first contact surface 55 06/03/2012 14:35 Nr.: R621 022/030
    权利要求:
    Claims (16)
    [1]
    06/03 2012 14:30 FAX 443 5522 73359 liofmann & 1. Steering column for a motor vehicle, which is adjustable in at least one adjustment direction (1, 2), wherein for adjustment in the adjustment direction (1, 2) or in at least one of the adjustment directions (1, 2) is provided by a drive motor (15, 35) driven spindle drive (14,34) having a in an axial direction 5 extending threaded spindle (16, 36), characterized in that the drive motor (15 , 35) is connected to a drive motor (15, 35) carrying part (9) of the steering column via a damping unit (20,40) having a primary connecting part (21) with a first contact surface (21d) and a secondary connecting part (22 ) having a second abutment surface 10 (22c), the first and second abutment surfaces (21d, 22c) being spaced apart in the axial direction of the threaded spindle (16, 36) and an elastomeric or viscoelastic cushioning material (26). between the first and the second contact surface (21d, 22c) is arranged.
    [2]
    2. Steering column according to claim 1, characterized in that the surfaces are normal to the first contact surface (21 d) and the second bearing surface (22 c) parallel to the axial direction of the threaded spindle (16, 36).
    [3]
    3. Steering column according to claim 1 or 2, characterized in that the connecting parts (21, 22) each have a plate-shaped portion aufwei sen, which is perpendicular to the axial direction of the threaded spindle (16, 36) and the respective contact surface (21 d, 22c).
    [4]
    4. Steering column according to one of claims 1 to 3, characterized in that between the first and the second bearing surface (21 d, 22 c) arranged damping material (26) is formed by a plate-shaped layer perpendicular to the axial direction of the threaded spindle (16,36) is available 06/03/2012 14:36 No .: R621 P.023 / 030 06/03 2012 14:30 FAX -43 5522 73359 Hof mann &. Fechner 00024/0030 19 • »· ·» * * • »· · · · >. And their two side surfaces spaced apart in the axial direction of the threaded spindle (16, 36) on the first and second abutment surfaces (21 d) , 22c) abut.
    [5]
    5. Steering column according to one of claims 1 to 4, characterized in that the Primärverbindsteii (21) has a third abutment surface (21e) facing in the opposite direction as the first abutment surface (21 d), and the secondary connecting part (22 ) Has a fourth abutment surface (22d) facing in the opposite direction as the second abutment surface (22c), wherein 10, the third and the fourth abutment surface (21 e, 22 d) in the axial direction of the Ge threaded spindle (16, 36) from each other are spaced apart and an elastomeric or viscoelastic damping material (27) between the third and the fourth bearing surface (21 e, 22 d) is arranged.
    [6]
    6. Steering column according to claim 5, characterized in that between the third and the fourth contact surface (21 e, 22 d) arranged damping Mate rial (27) is formed by a plate-shaped layer perpendicular to the axial direction of the threaded spindle (16, 36) and whose two in the axial direction of the threaded spindle (16, 36) spaced side-20 surfaces on the third and the fourth contact surface (21 e, 22 d) abut.
    [7]
    7. Steering column according to claim 5 or 6, characterized in that the primary Verbindungssteii (21) in the axial direction of the threaded spindle (16, 36) beab-spaced, a gap between having first and second leg 25 (21 a, 21 b) which are interconnected by a base leg (21c), the first and third abutment surfaces (21d, 21e) being formed by the mutually facing surfaces of the first and second legs (21a, 21b), and the secondary connecting part (22) in the intermediate space between the first and the second leg (21 a, 21 b) of the pri-30 mary connecting part (21) protrudes. 06/03/2012 14:36 No .: R621 P.024 / 030 06/03 2012 14:31 FAX +43 5522 73359 Hofmann & Fechner 00025/003020




    [8]
    8. Steering column according to claim 7, characterized in that the second and the fourth abutment surface (22c, 22d) of the mutually away surfaces of a in the space between the first and the second leg (21a, 21b) of the primary connecting part (21) projecting Web (22a) 5 of the secondary connecting part (22) are formed.
    [9]
    9. Steering column according to one of claims 1 to 8, characterized in that the steering column in the adjustment direction (1) of a height or tilt adjustment is adjustable, wherein a steering spindle (4) carrying the pivot unit (9) ge-10 compared to the mounting part ( 7) by means of the drive motor (15) drive NEN spindle drive (14) is pivotable and the drive motor (15) via the damping unit (20) with the pivoting unit (9) or with the mounting part (7) is connected.
    [10]
    10. Steering column according to claim 9, characterized in that for pivoting the pivoting unit (9) relative to the mounting part (7) an adjusting lever (11) which is pivotally mounted on the mounting part (7) and on the pivoting unit (9), from the spindle drive ( 14) for the height or inclination adjustment is pivotable. 20
    [11]
    11. Steering column according to claim 10, characterized in that the adjusting lever (11) is made of a designed as a composite sheet metal, wherein the composite material has a first metallic layer (4ό) and a second metallic layer (47), between which a third layer (48) is arranged of a elastomeric or viscoelastic material.
    [12]
    12. Steering column according to one of claims 9 to 11, characterized in that the damping unit (20) for the height or tilt adjustment pivotally with a drive motor (15) for the height or inclination-30 adjustment bearing bearing part (23) of the spindle drive (14) for the heights or tilt adjustment is connected. 06/03/2012 14:37 No .: R621 P.025 / 030 06/03 2012 14:32 FAX +43 5522 73359 Hofmann & Fechner @ 0026/003021




    [13]
    13. Steering column according to one of claims 1 to 12, characterized in that the steering column is adjustable in the adjustment direction (2) a LängenversteHung, wherein a steering spindle (4) rotatably supporting mantle unit (3) relative to the mounting member (7) in the adjustment direction (2) the length adjustment by means of 5 of the drive motor (35) driven spindle drive (34) is displaceable and the drive motor (35) via the damping unit (40) with the pivot unit (9) or the shell unit (3) or the mounting part (7) connected is. 10
    [14]
    14, steering column according to one of claims 9 to 12 and according to claim 13, characterized in that the jacket unit (3) of the pivoting unit (9) is displaceably mounted in the adjustment direction (1) of the length adjustment.
    [15]
    15. Steering column according to claim 14, characterized in that the damping unit (40) for Längenversteltung pivotally connected to a An-15 drive motor (35) for the length adjustment supporting bearing part (43) of the spin delantriebs (34) for the length adjustment. 20 25
    [16]
    16. Steering column for a motor vehicle, which is adjustable in at least one adjustment direction (1, 2), wherein for adjustment in the adjustment direction (1,2) or in at least one of the adjustment directions (1, 2) one of a drive motor (15, 35 ) driven spindle drive (14, 34) is provided which has an axial direction extending in a threaded spindle (16, 36), and which comprises at least one transmission element (11,28} which is used to transmit a movement of the spindle drive (14, 34 ) or one of the spindle drives to a tn the adjustment direction (1, 2) or one of the adjustment directions adjustable component (9, 3) of the steering column on the one hand with the spindle drive (14, 34) or one of the spindle drives and on the other hand with the adjustable component (9, 3) of the steering column is connected, characterized in that the transmission element (11,28) is made of a designed as a composite sheet metal, wherein the composite material is a first metallic Layer (46) and a second metallic layer (47), between which a third layer (48) of an elastomeric or viscoelastic material is arranged. 06/03/2012 14:38 No .: R621 P.026 / 030 30
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    同族专利:
    公开号 | 公开日
    AT511962B1|2013-04-15|
    CN104411565B|2017-05-10|
    EP2822835B1|2016-07-20|
    ES2599262T3|2017-01-31|
    US20150028574A1|2015-01-29|
    EP2822835A1|2015-01-14|
    US9090284B2|2015-07-28|
    CN104411565A|2015-03-11|
    PL2822835T3|2017-07-31|
    WO2013131608A1|2013-09-12|
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    DE102009057388A1|2009-12-08|2011-05-19|Daimler Ag|Electro-mechanical drive for e.g. seat adjustment part of motor vehicle, has control and regulating device that controls piezoelectric surface elements for generating compensatory vibration to interfere with vibration of drive|
    DE102011007647A1|2010-04-23|2011-11-10|C. Rob. Hammerstein Gmbh & Co. Kg|Length-adjustable steering column module for a motor vehicle|DE102014101995A1|2014-02-18|2015-01-29|Thyssenkrupp Presta Ag|Steering column for a motor vehicle and spindle nut|
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    WO2015140205A1|2014-03-21|2015-09-24|Thyssenkrupp Presta Ag|Steering column for a motor vehicle, threaded rod and spindle nut|
    DE102014104362A1|2014-03-28|2015-10-01|Thyssenkrupp Presta Ag|Steering column for a motor vehicle|
    DE102017204872A1|2017-03-23|2018-09-27|Thyssenkrupp Ag|Adjustable steering column for a motor vehicle|FR1590248A|1967-11-02|1970-04-13|
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    JP2000085592A|1998-09-08|2000-03-28|Aisin Seiki Co Ltd|Tilt slider mechanism|
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    JP4483914B2|2007-09-06|2010-06-16|トヨタ自動車株式会社|Steering column device|
    JP5513282B2|2010-06-29|2014-06-04|富士機工株式会社|Electric telescopic steering device|
    KR101306457B1|2011-01-17|2013-09-09|주식회사 만도|Electric Tilt Steering Apparatus for Vehicle|DE102013101045B3|2013-02-01|2014-05-15|Thyssenkrupp Presta Aktiengesellschaft|Steering column for a motor vehicle|
    US9663136B2|2014-02-20|2017-05-30|Steering Solutions Ip Holding Corporation|Steering column having anti-rotation feature|
    US9616914B2|2014-02-20|2017-04-11|Steering Solutions Ip Holding Corporation|Telescope and adaptive energy absorption system|
    US9499190B2|2014-03-06|2016-11-22|Steering Solutions Ip Holding Corporation|Adjustable steering column assembly having self-de-lashing power-rake mechanism|
    US9522694B2|2015-02-27|2016-12-20|Steering Solutions Ip Holding Corporation|Radial telescope bushing for steering column|
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    CN108216350B|2016-12-22|2019-10-22|北汽福田汽车股份有限公司|Steering column rack pinion group and steering column regulating mechanism and vehicle|
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    CN112498464B|2020-12-18|2021-12-21|东风汽车集团有限公司|Steering wheel position memory adjusting device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    AT2852012A|AT511962B1|2012-03-06|2012-03-06|Steering column for a motor vehicle|AT2852012A| AT511962B1|2012-03-06|2012-03-06|Steering column for a motor vehicle|
    CN201380013191.9A| CN104411565B|2012-03-06|2013-02-14|Steering column for a motor vehicle|
    US14/383,196| US9090284B2|2012-03-06|2013-02-14|Steering column for a motor vehicle|
    EP13704366.7A| EP2822835B1|2012-03-06|2013-02-14|Steering column for a motor vehicle|
    PL13704366T| PL2822835T3|2012-03-06|2013-02-14|Steering column for a motor vehicle|
    PCT/EP2013/000431| WO2013131608A1|2012-03-06|2013-02-14|Steering column for a motor vehicle|
    ES13704366.7T| ES2599262T3|2012-03-06|2013-02-14|Steering column for a motor vehicle|
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