WO2022074028A1 - Dispositif de réglage longitudinal et siège de véhicule - Google Patents

Dispositif de réglage longitudinal et siège de véhicule Download PDF

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Publication number
WO2022074028A1
WO2022074028A1 PCT/EP2021/077494 EP2021077494W WO2022074028A1 WO 2022074028 A1 WO2022074028 A1 WO 2022074028A1 EP 2021077494 W EP2021077494 W EP 2021077494W WO 2022074028 A1 WO2022074028 A1 WO 2022074028A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
rail
longitudinal adjuster
spindle nut
contact surface
Prior art date
Application number
PCT/EP2021/077494
Other languages
German (de)
English (en)
Inventor
Erik Sprenger
Ingo Quast
Original Assignee
Adient Us Llc
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 Adient Us Llc filed Critical Adient Us Llc
Publication of WO2022074028A1 publication Critical patent/WO2022074028A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
    • B60N2/067—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable by linear actuators, e.g. linear screw mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/2003—Screw mechanisms with arrangements for taking up backlash
    • F16H25/2009—Screw mechanisms with arrangements for taking up backlash with radial preloading
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2205/00—General mechanical or structural details
    • B60N2205/20—Measures for elimination or compensation of play or backlash

Definitions

  • the invention relates to a longitudinal adjuster, in particular for a vehicle seat, the longitudinal adjuster having at least one pair of rails, which is formed from a first rail and a second rail, the first rail and the second rail being displaceable relative to one another in a longitudinal direction and the first rail and the second rail alternately encompasses one another to form an inner channel, with a spindle nut connected to the second rail and having an internal thread and a spindle with an external thread cooperating with the internal thread of the spindle nut being arranged in the inner channel, with a means at one end of the first rail a motor-driven and cooperating with the spindle spindle gear is arranged, wherein the spindle nut has a damping element which radially centers the spindle relative to the internal thread of the spindle nut.
  • the invention also relates to a vehicle seat.
  • a generic drive device for a motor vehicle seat in a sliding device is known from DE 10 2005 023 095 A1.
  • the drive mechanism for use with an automotive seat slide includes mating fixed and movable track members moveable between a forward position and a rearward position.
  • the drive device includes an extended spindle, a spindle nut, a gear and an installation device.
  • the spindle defines a spindle axis and has longitudinally extending spindle threads.
  • the spindle nut can be securely fastened to a first rail part and has an internal thread that can engage in the spindle thread.
  • the gear can be mounted on a different track member and selectively rotates the spindle about the spindle axis.
  • the spindle of the drive device is provided with a spindle wheel which, when the drive device is in the assembled state, extends outwards through spindle wheel openings in the movable rail part.
  • a seat sliding device is known from DE 10 2006 000 193 A1, which has a system with a floating threaded spindle and a fixed nut. The nut is attached to the lower rail while the lead screw rotates through it, allowing the upper structure to move forward and backward. Once this system is applied, the nut is attached to the bottom rail.
  • DE 102008 024 141 A1 discloses a spindle-bearing arrangement for a longitudinal seat adjustment mechanism, which has a housing which can be fastened to a vehicle-side component or to a seat-side component with a fastening arrangement, with a spindle opening for passing a spindle along a spindle opening axis through the Housing carries out and wherein an internal thread is formed in the housing in the region of its spindle opening for engaging in such a guided spindle for adjusting the housing and the spindle relative to each other along the spindle opening axis.
  • the spindle bearing arrangement provides that the internal thread is formed in a spindle nut and the spindle nut is mounted adjustably in the housing relative to the spindle opening axis.
  • An alternative drive device for a motor vehicle seat is known from DE 102014 201 582 A1, which has a spindle held non-rotatably in a first rail fixed to the vehicle in connection with a driven spindle gear held in a second rail fixed to the seat.
  • Such drive devices do not have a fixed spindle nut.
  • a longitudinal adjuster for a vehicle seat is known from US 2010/0044542 A1, having a pair of rails with a first rail and a second rail, wherein the first rail and the second rail can be displaced relative to one another and the first rail and the second rail alternately encompass one another to form an inner channel, with a spindle nut connected to the second rail and having an internal thread being located in the inner channel, and a spindle having a with the internal thread cooperating external thread are arranged, wherein the spindle nut has a damping element which radially centers the spindle relative to the internal thread of the spindle nut.
  • DE 10 2004 048228 A1 discloses an adjustment device comprising a nut floatingly mounted on a rigid carriage and a spindle drive screwed into the nut, the spindle drive being rotatably mounted in a bearing fixedly connected to the carriage with essentially no radial play.
  • the object of the invention is to improve a longitudinal adjuster of the type mentioned at the outset, in particular to provide a longitudinal adjuster with a stationary spindle nut, which allows clearance and/or tolerance compensation in the area of the spindle nut, and to provide a corresponding vehicle seat.
  • a longitudinal adjuster in particular for a vehicle seat, the longitudinal adjuster having at least one pair of rails, which is formed from a first rail and a second rail is, wherein the first rail and the second rail are displaceable relative to one another in a longitudinal direction and the first rail and the second rail alternately encompass one another to form an inner channel, wherein a spindle nut connected to the second rail and having an internal thread is located in the inner channel, and a spindle with an external thread cooperating with the internal thread of the spindle nut is arranged, with a spindle gear which can be driven by a motor and interacts with the spindle being arranged at one end of the first rail, with the spindle nut having a damping element which keeps the spindle relative to the internal thread of the Spindle nut radially centered, the spindle nut having at least one conically designed contact surface, and the damping element has at least one centering section encompassing at least some sections of the spindle
  • the damping element has at least one centering section that encompasses the spindle at least in sections and at least one spring-elastic section, the centering section having a contact surface contacting the external thread of the spindle and a tapering contour, the at least a resilient section applies a first force to the at least one centering section in the direction of the at least one contact surface, so that the tapering contour of the at least one centering section is in contact with the at least one contact surface, the spindle is radially centered relative to the internal thread of the spindle nut.
  • Friction present via the spring force in the contacts of the centner section with the stop surfaces dampens a vibration of the rotating spindle or the vibration of a spindle that is not rotating during ferry operation but is excited to vibrate.
  • the first rail is preferably a seat rail that can be connected to a vehicle seat.
  • the second rail is preferably a floor rail that can be connected to a vehicle structure.
  • a possible internal structure as well as the mode of action and function of the spindle drive is known, for example, from DE 10 2013 207 665 A1, the relevant disclosure content of which is hereby expressly included.
  • the spindle can be supported at a front end portion of the spindle in the spindle gear.
  • the spindle can be mounted in a pivot bearing of the first rail at a rear end section of the spindle.
  • the spindle nut can be fixed to the second rail by means of at least one fixing element, preferably two fixing elements, in particular in the form of a threaded bolt.
  • the fixing elements can each be guided through an opening in the second rail.
  • the spindle nut can have at least one, preferably two, threaded bores, each of which interacts with a fixing element.
  • the spindle nut can have a base body.
  • the spindle nut can have a continuous threaded bore with the internal thread, in particular parallel to the longitudinal direction.
  • the spindle nut can have openings aligned with the threaded bore, in particular for the entry or exit of the spindle.
  • the spindle nut is preferably designed in one piece.
  • the external thread of the spindle and the internal thread of the spindle nut can be a trapezoidal thread.
  • the trapezoidal thread can have backlash.
  • the spindle nut can have a contact surface in each of the areas adjacent to the internal thread in the axial direction.
  • the contact surfaces can be designed in the form of an inner cone.
  • the contact surfaces can have the shape of an opening inner cone in the axial direction outwards.
  • a diameter of the opening of the spindle nut, in particular in the area of the contact surfaces, can decrease inwards in the direction of the threaded bore.
  • a diameter of the opening can increase towards the outside, in particular it can be widened towards the outside.
  • the damping element can be a plastic bushing.
  • the damping element can have at least one centering section that at least partially encompasses the spindle.
  • the damping element can have two centering sections lying opposite one another.
  • the centner section of the damping element can have at least two centner segments which encompass the spindle at least in sections.
  • the damping element can be made of a plastic.
  • the damping element can be made of a thermoplastic material.
  • the damping element can be made of polyoxymethylene (POM).
  • the centering section in particular of each centering segment, has a contact surface that makes contact with the external thread of the spindle.
  • the centering section in particular of each of the centering segments, can bear against an outer circumference of the external thread of the spindle by means of the contact surface.
  • the contact surface can have a convex contour in a direction along the spindle axis.
  • the contact surface can extend over at least twice the thread pitch of the external thread of the spindle.
  • the centner section may have a tapered contour.
  • a tapering contour is to be understood as meaning a contour that becomes narrower along an axial direction, in particular a conical contour.
  • the centering can a Have contour in the form of an outer cone.
  • the centner section can have a spherical contour.
  • the contour or the outer cone of the centner section can be in contact with the contact surface of the spindle nut.
  • the centering section can interact with the contact surface of the spindle nut by means of the contour or the outer cone. Entry of the centering section into the opening in the area of the contact surface can reduce a distance between the centering segments in the radial direction.
  • At least two centering segments of a centering section can be connected to one another by means of a film hinge.
  • the damping element can have at least two spring-elastic sections.
  • the spring-elastic sections can be elastically prestressed in the assembled state.
  • the damping element can have at least two spring-elastic sections, which apply a first force to the at least one centner section in the direction of the spindle nut, in particular in the direction of one of the contact surfaces.
  • the damping element preferably has an even number of spring-elastic sections.
  • the spring-elastic sections can act on the two centering sections lying opposite one another in the axial direction of the spindle with a first force towards one another.
  • the at least two resilient sections can be arranged on opposite sides of the spindle nut.
  • the at least two resilient sections can be arranged parallel to the spindle axis on opposite sides of the spindle nut.
  • the at least two spring-elastic sections can obtain their spring-elastic property due to material properties and/or due to a shape of the spring-elastic sections.
  • the at least two spring-elastic sections can be connected to one another via at least one connecting section.
  • the at least one connection section can act on at least one centner segment of a centering section.
  • the tapering contour of the centner sections in operative connection with a respective contact surface of the spindle nut can be parallel to the spindle axis Change oriented first force in a radially oriented in the direction of the spindle second force.
  • the spindle can be centered by the second force exerted in the radial direction.
  • Vibrations of the motor vehicle while driving or stationary with the engine running can transmit vibrations to the spindle or stimulate vibrations in the spindle.
  • a change in the direction of the second force can cause a force that acts in opposition to the first force.
  • a damping, in particular a weakening of the vibrations can be achieved by small movements and the resulting frictional force of the contour of the centering sections along the contact surface of the spindle nut. Due to the damping of the vibration of the spindle in the radial direction by means of the damping element, a radial impact of the external thread of the spindle in the internal thread of the spindle nut can be prevented.
  • the object is also achieved according to the invention by a vehicle seat with a longitudinal adjuster as described above.
  • the longitudinal adjuster can have a damping element made of a plastic material, which is held on the spindle nut.
  • Fig. 2 a perspective view of a longitudinal adjuster according to the invention of the vehicle seat of Fig. 1,
  • Fig. 3 a perspective view of a pair of rails of the longitudinal adjuster of Fig. 2,
  • Fig. 4 a longitudinal section of the pair of rails of Fig. 3,
  • FIG. 6 a perspective view of the spindle nut from FIG. 5 with a spindle screwed into the spindle nut
  • FIG. 7 a plan view of the spindle nut from FIG. 5 with a damping element according to a first exemplary embodiment of the longitudinal adjuster
  • FIG. 8 a detail of an enlarged representation of the damping element from FIG. 7,
  • FIG. 10 a perspective view of the spindle nut with the damping element from FIG. 7,
  • Fig. 11 a perspective sectional view of the spindle nut with the damping element of Fig. 7, 12: a sectional view of the spindle nut with the damping element from FIG. 7 and a spindle,
  • Fig. 14 a plan view of the damping element of Fig. 13,
  • FIG. 15 a front view of the damping element of FIG. 13, and
  • a vehicle seat 1 shown schematically in FIG. 1 is described below using three spatial directions running perpendicular to one another.
  • a longitudinal direction x runs largely horizontally and preferably parallel to a longitudinal direction of the vehicle, which corresponds to the usual direction of travel of the vehicle.
  • a transverse direction y running perpendicularly to the longitudinal direction x is likewise aligned horizontally in the vehicle and runs parallel to a vehicle transverse direction.
  • a vertical direction z runs perpendicular to the longitudinal direction x and perpendicular to the transverse direction y. In the case of a vehicle seat 1 installed in the vehicle, the vertical direction z runs parallel to the vertical axis of the vehicle.
  • the position and direction information used refers to a viewing direction of an occupant sitting in the vehicle seat 1 in a normal seating position, with the vehicle seat 1 installed in the vehicle, in a usage position suitable for passenger transport with the backrest 4 upright and how is usually aligned in the direction of travel.
  • the vehicle seat 1 can also be installed in a different orientation, for example transversely to the direction of travel.
  • the vehicle seat 1 for a motor vehicle shown in FIG. 1 has a seat part 2 and the backrest 4 , whose inclination can be adjusted relative to the seat part 2 .
  • An inclination of the backrest 4 can be adjustable, for example, by means of a locking fitting or a geared fitting.
  • the vehicle seat 1 is mounted on a longitudinal adjuster 10 for adjusting a seat longitudinal position.
  • the longitudinal adjuster 10 has at least one pair of rails, in the present case two pairs of rails.
  • Fig. 3 shows one of the pairs of rails of the longitudinal adjuster 10.
  • the pairs of rails are each formed from a first rail 12, in particular for connection to a seat structure of the vehicle seat 1, and a second rail 14, in particular for connection to a vehicle structure.
  • the rails 12, 14 of the pair of rails can be displaced relative to one another in the longitudinal direction x and mutually encompass one another, forming an inner channel 16.
  • Arranged in the inner channel 16 are a spindle nut 30 non-rotatably connected to the second rail 14 and a spindle 20 operatively connected to the spindle nut 30 .
  • the spindle 20 extends along a spindle axis S, here parallel to the longitudinal direction x.
  • the spindle axis S and the pairs of rails can, however, also be aligned slightly inclined to the longitudinal direction x in modifications of the exemplary embodiments.
  • the position information and direction information used, such as axial, radial or “in the circumferential direction” relate to cylindrical coordinates in relation to the spindle axis S.
  • the spindle 20 is rotatably mounted about the spindle axis S.
  • a spindle gear 50 Arranged at a front end of the first rail 12 is a spindle gear 50 which can be driven by a motor 60 and drives the spindle 20 .
  • the motor 60 is held on a motor mount 70 mounted between the two spindle gears 50 of the respective pairs of rails and drives the two spindle gears 50 by means of a shaft (not shown in FIG. 2).
  • Fig. 4 shows a longitudinal section of the rail pair of Fig. 3.
  • the spindle gear 50 supports a front end portion 20a of the spindle 20.
  • the spindle 20 has a rear end portion 20b opposite the front end portion 20a. In the state shown here, the spindle nut 30 is arranged centrally along the length of the spindle 20 .
  • the spindle nut 30 is fixed to the second rail 14 by means of two fixing elements 40, in the present case in the form of screws.
  • the fixing elements 40 are each passed through an opening in the second rail 14 .
  • the spindle nut 30 has two fixing openings 38 which have an internal thread and which each interact with a fixing element 40 .
  • a spindle nut 30 of the longitudinal adjuster 10 according to the invention with and without a spindle 20 is shown.
  • the spindle nut 30 has a base body.
  • the spindle nut 30 has a continuous threaded bore parallel to the longitudinal direction x with an internal thread 32 .
  • the spindle nut 30 has openings 36 aligned with the threaded bore, in particular for the entry or exit of the spindle 20 .
  • the internal thread 32 of the spindle nut 30 is operatively connected to an external thread 22 of the spindle 20 .
  • the spindle nut 30 is preferably designed in one piece.
  • the external thread 22 of the spindle 20 and the internal thread 32 of the spindle nut 30 are each designed as a trapezoidal thread in the present case.
  • the trapezoidal thread can have backlash.
  • the trapezoidal thread usually has a flank angle of 30°. Due to the thread geometry, a trapezoidal thread with flank play results in a ratio between an axial play and a radial play with a factor of approximately 3.7, for example.
  • the spindle nut 30 has a contact surface 34 in each of the areas adjacent to the internal thread 32 in the axial direction.
  • the contact surfaces 34 have the shape of an opening inner cone in the axial direction outwards.
  • a diameter of the openings 36 of the spindle nut 30 decreases inward in the direction of the threaded bore with the internal thread 32 . Accordingly, the diameter of the openings 36 increases towards the outside.
  • FIGS 7 to 12 show different representations of the spindle nut 30 with a damping element 100 according to a first embodiment of the longitudinal adjuster 10 and are described together below.
  • the damping element 100 has two centering sections 102 which at least partially encompass the spindle 20 .
  • the two centering sections 102 of the damping element 100 are arranged opposite one another.
  • the centner sections 102 of the damping element 100 each have two centner segments 108 which encompass the spindle 20 at least in sections.
  • the damping element 100 is preferably made from a plastic.
  • the two centering segments 108 of each centering section 102 extend approximately over half the circumference of the spindle 20.
  • the two centering segments 108 of each centering section 102 are connected to one another by means of two opposing film hinges 110.
  • Each of the centner segments 108 of the centner sections 102 has a contact surface 106 that contacts the external thread 22 of the spindle 20 .
  • the centner segments 108 rest against an outer circumference of the external thread 22 of the spindle 20 by means of their contact surface 106 .
  • the contact surface 106 can have a contour that is convex along the spindle axis S.
  • FIG. Alternatively, the contact surface 106 can have a cylindrical contour along the spindle axis S.
  • the contact surface 106 preferably extends over at least twice the thread pitch of the external thread 22 of the spindle 20.
  • the damping element 100 has resilient sections 114, which extend essentially parallel to the spindle axis S, and which are present in pairs on one of two opposite sides of the spindle nut 30 are arranged.
  • the spring-elastic sections 114 are connected to one another and to one of the two core sections 102 on both sides by means of a connecting section 112 .
  • the spring-elastic sections 114 arranged symmetrically around the spindle nut 30 generate a tensile force, by means of which the two centner sections 102 are subjected to a first force F1 in the axial direction of the spindle nut 30, in particular in the direction of one of the contact surfaces 34 in each case.
  • the spring-elastic sections 114 have their spring-elastic property due to material properties and/or also due to a shape of the spring-elastic sections 114 .
  • the centering section 102 has a tapered contour in the form of an outer cone 104.
  • FIG. The centering section 102 can alternatively have a spherical contour.
  • the contour or the outer cone 104 of the centering section 102 is in contact with the contact surface 34 of the spindle nut 30 in the assembled state.
  • the centering section 102 interacts with the contact surface 34 of the spindle nut 30 by means of the contour or the outer cone 104 . Entry of the centner section 102 into the opening 36 in the area of the contact surface 34 causes a reduction in a radial distance between the centner segments 108.
  • the tapering contour of the centner sections 102 interacts with an associated contact surface 34 in such a way that a first force F1 parallel to the spindle axis S can be deflected into a second force F2 in the radial direction on the spindle 20 .
  • the spindle 20 is centered relative to the opening 36 of the spindle nut 30 by the second forces F2 exerted in the radial direction.
  • a change in direction of the second force F2 causes a force that acts in opposition to the first force F1.
  • a damping, in particular a weakening of the vibrations, is achieved by small movements and the resulting frictional force F3 of the contour of the centering sections 102 along the contact surface 34 of the spindle nut 30 . Due to the damping of the vibration of the spindle 20 in the radial direction by means of the damping element 100, a radial impact of the external thread 22 of the spindle 20 in the internal thread 32 of the spindle nut 30 is prevented.
  • FIGS 13 to 16 show different representations of a damping element 200 according to a second embodiment of the longitudinal adjuster 10 and are described together below.
  • the damping element 200 has two centering sections 202 which at least partially encompass the spindle 20 .
  • the two centering sections 202 of the damping element 200 are arranged opposite one another.
  • the centering sections 202 of the damping element 200 each have four centering segments 208 which encompass the spindle 20 at least in sections.
  • the centering segments 208 of the centering sections 202 form a spherical contour.
  • the two upper hundredweight segments 208 are connected to one another and the two lower hundredweight segments 208 are connected to one another.
  • a slightly flexible connection is created in the area of the connection of the respective two adjacent centering segments 208, which, however, is designed to be stiffer compared to a film hinge.
  • the damping element 200 is preferably made of a plastic.
  • Each of the centering segments 208 of the centering sections 202 has a contact surface 206 that contacts the external thread 22 of the spindle 20 .
  • the centering segments 208 rest against an outer circumference of the external thread 22 of the spindle 20 by means of their contact surfaces 206 .
  • At least one of the contact surfaces 206 can have a contour that is convex along the spindle axis S.
  • at least one of the contact surfaces 206 can have a contour that is cylindrical along the spindle axis S.
  • the contact surfaces 206 preferably extend over at least twice the thread pitch of the external thread 22 of the spindle 20.
  • the centering section 202 in particular each of the centering segments 208, has a tapering contour in the form of an outer cone 204.
  • the outer cone 204 of the centering section 202 is in contact with the stop surface 34 of the spindle nut 30 in the assembled state.
  • the damping element 200 has two spring-elastic sections 214 which extend essentially parallel to the spindle axis S and which in the present case are each arranged on one of the two opposite sides of the spindle nut 30 .
  • the spring-elastic sections 214 are connected to both centering sections 202 on both sides by means of a connecting section 212 .
  • the spring-elastic sections 214 generate a tensile force, by means of which the two centner sections 202 are subjected to a first force F1 in the axial direction of the spindle nut 30, in particular in the direction of one of the contact surfaces 34 in each case.
  • the spring-elastic sections 214 have their spring-elastic property due to material properties and/or also due to a shape of the spring-elastic sections 214 .

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

Abstract

L'invention concerne un dispositif de réglage longitudinal (10) conçu pour un siège de véhicule (1), qui comprend une paire de rails comportant un premier rail (12) et un deuxième rail (14), le premier et le deuxième rail pouvant être déplacés l'un par rapport à l'autre, le premier et le deuxième rail pouvant être disposés de manière à s'entourer mutuellement de manière à former un canal interne (16), un écrou de broche (30) qui est relié au deuxième rail et qui présente un filetage interne (32) et une broche (20) qui présente un filetage externe (22) interagissant avec le filetage interne étant disposés dans le canal interne ; l'écrou de broche possédant un élément amortisseur (100 ; 200) qui centre de manière radiale la broche par rapport au filetage interne de l'écrou de broche ; ledit écrou de broche présentant une surface d'appui formée de manière conique (34), et l'élément amortisseur présentant une partie de centrage (102) entourant partiellement la broche, et une partie élastique (114; 214) ; la partie de centrage possédant une surface de contact (106; 206) se trouvant en contact avec le filetage externe de la broche, et un contour effilé (104; 204) ; la partie élastique soumettant la partie de centrage dans la direction de la surface d'appui à une première force (Fl) de façon que le contour effilé de la partie de centrage soit en contact avec la surface d'appui.
PCT/EP2021/077494 2020-10-06 2021-10-06 Dispositif de réglage longitudinal et siège de véhicule WO2022074028A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102020126148 2020-10-06
DE102020126148.9 2020-10-06
DE102021100886.7 2021-01-18
DE102021100886.7A DE102021100886B8 (de) 2020-10-06 2021-01-18 Längseinsteller und fahrzeugsitz

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WO2022074028A1 true WO2022074028A1 (fr) 2022-04-14

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023007323A1 (fr) * 2021-07-26 2023-02-02 Adient Us Llc Dispositif de réglage longitudinal et siège de véhicule

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021214875A1 (de) 2021-07-26 2023-01-26 Adient Us Llc Längseinsteller und fahrzeugsitz

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