EP2001705A1 - Mécanisme pour un siège de véhicule - Google Patents

Mécanisme pour un siège de véhicule

Info

Publication number
EP2001705A1
EP2001705A1 EP07711613A EP07711613A EP2001705A1 EP 2001705 A1 EP2001705 A1 EP 2001705A1 EP 07711613 A EP07711613 A EP 07711613A EP 07711613 A EP07711613 A EP 07711613A EP 2001705 A1 EP2001705 A1 EP 2001705A1
Authority
EP
European Patent Office
Prior art keywords
fitting
parts
locking
justierbeschlag
vehicle seat
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP07711613A
Other languages
German (de)
English (en)
Inventor
Dietmar Eppert
Jürgen STEMMER
Ulrich Lehmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Johnson Controls Components GmbH and Co KG
Original Assignee
Keiper GmbH and Co
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 Keiper GmbH and Co filed Critical Keiper GmbH and Co
Publication of EP2001705A1 publication Critical patent/EP2001705A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—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
    • 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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/20—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 tiltable, e.g. to permit easy access
    • 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
    • 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
    • B60N2/235—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 gear-pawl type mechanisms
    • B60N2/2356—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 gear-pawl type mechanisms with internal pawls
    • B60N2/2358—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 gear-pawl type mechanisms with internal pawls and provided with memory locks

Definitions

  • the invention relates to a fitting for a vehicle seat, in particular for a motor vehicle seat, having the features of the preamble of claim 1.
  • a fitting of this type is known in which a geared fitting and a detent fitting with respect to the power flow are arranged in series.
  • the gear fitting is used for the inclination adjustment of a backrest, the catch fitting for pivoting the same, i. to facilitate access to a rear row of seats by pivoting the backrest.
  • the geared fitting can in principle be driven by a motor, while the catch fitting is unsuitable for this purpose.
  • the invention is based on the object to improve a fitting of the type mentioned. This object is achieved by a fitting with the features of claim 1.
  • Advantageous embodiments are the subject of the dependent claims.
  • the Justierbeschlag can be optimized in terms of efficiency and the Arretierbeschlag in terms of backlash and Crashlastaufhahme.
  • two fitting parts of the Justierbeschlags are connected to each other by means of a non-self-locking eccentric revolving gear, ie the Justierbeschlag is very smooth, which is advantageous both in a manual and a motor drive.
  • the locked locking fitting which may be a detent fitting or a brake, bridges the Justierbeschlag with respect to the power flow at least largely, preferably completely, ie the Justierbeschlag contributes at most little to the detection of the fitting, for example due to inertial effects.
  • a compensation part is provided, which can compensate for a tumbling movement of the two fitting parts of the Justierbeschlags and convert into an equiaxial movement, as they also performs the Arretierbeschlag.
  • a preferred disc shape of the fitting parts of the fitting can be easily created as a preassembled unit, preferably one - for example, generated by laser welding - transport lock provides for a first connection of the individual fittings, which is then strengthened by the attachment of the adapter, wherein the attached to the Slice shape adapted geometry of the adapter can be made very simple.
  • the fitting of the invention is preferably used for tilt adjustment of the backrest, for example, in a single seat, especially seat belt integral seat, or in a rear seat system with divided (40% / 60%) back in second or third row of seats, but can also be used elsewhere as a drive in the vehicle seat, for example, for a height adjuster or tilt adjuster of the seat cushion.
  • 3 is an exploded view of the Justierbeschlags
  • 4 is an exploded view of the fitting with assembled individual fittings, without transport lock, and with adapter
  • Fig. 5 is a perspective view of the fitting including adapter, and
  • Fig. 6 is a schematic vehicle seat.
  • a vehicle seat 1 of a motor vehicle which forms, for example, a part of a rear seat system, has a seat part 3 and a backrest 4, which is attached by means of a fitting assembly 5 on the seat part and relative to this in its inclination adjustable.
  • the fitting assembly 5 comprises at least on a vehicle seat side a fitting 8.
  • the fitting 8 is designed as a double fitting, i. it consists of two in principle fully functional single fittings, which are arranged axially side by side. The individual fittings are uneven and arranged with respect to the power flow alternatively to each other.
  • each Justierbeschlag 10 is provided, which has a good efficiency for the inclination adjustment of the backrest 4 and therefore serves to adjust the fitting 8.
  • the Justierbeschlag 10 is preferably designed for a motor drive.
  • the adjusting fitting 10 has a first adjusting fitting part 11 and a second adjusting fitting part 12, which are connected to one another by means of a gear designed as a non-self-locking eccentric planetary gear mechanism for adjusting.
  • the two adjusting fitting parts 11 and 12 have a substantially flat disc shape.
  • a toothed wheel 16 with an outer toothing and the first adjusting fitting part 11, a toothed ring 17 is pronounced with an internal toothing on the second adjusting fitting part 12, which mesh with each other.
  • the diameter of the tip circle of the external toothing of the toothed wheel 16 is smaller by at least one tooth height than the diameter of the root circle of the internal toothing of the ring gear 17.
  • the corresponding difference in the number of teeth of gear 16 and ring gear 17 allows a rolling movement of the ring gear 17 relative to the gear 16th
  • the first adjusting fitting part 11 has on the gear 16 side facing concentric with the internal teeth of the ring gear 17 has a molded collar 19.
  • a driver 21 is provided.
  • the two-part constructed driver 21 consists of a Mit psychologybuchse 21a, which projects with air in the collar 19 and which has an inner profile for receiving a profiled drive shaft 22 in the center, and a non-rotatably connected to the Mit psychologybuchse 21a and arranged outside of the collar 19 catch ring 21b.
  • the driving ring 21b defines together with a crescent-shaped element, hereinafter referred to as sickle element 23, an eccentric.
  • the sickle element 23 is taken in the circumferential direction of a driver segment 21c of the driver ring 21b with play.
  • the said eccentric is driven by a rotation of the drive shaft (and thus of the driver 21) in a plain bearing bushing 28 of the second adjustment fitting part 12 and thereby causes the relative rolling movement of ring gear 17 and gear 16.
  • the movement turns as a relative rotational movement of the former Justier fitting part 11 and second adjustment fitting part 12 with superimposed wobble.
  • the driving ring 21b is supported on the collar 19.
  • Justierbeschlag ring 30 For the axial cohesion of the Justierbeschlags 10 is a first Umklamm ceremoniessring, hereinafter provided as Justierbeschlag ring 30, which is arranged on the one hand along the outer periphery of the second Justier fitting part 12 and connected thereto, for example, pressed and optionally laser welded, and on the other hand, the first Justier fitting part 11 overlaps.
  • the drive bush 21a is preferably made of plastic
  • the other components of the Justierbeschlags 10 preferably made of metal, such as steel, optionally sintered, hardened or otherwise treated.
  • the driver ring 21b and the sickle element 23 can be integrally formed with each other as a fixed eccentric. It is also possible that the entire driver 21 is formed in one piece, or that the driver 21 and the sickle element 23 are replaced by a one-piece fixed eccentric. If the sickle element 23 is replaced by two wedge segments according to WO 03/024740 Al, the Justierbeschlag 10 is free of play in the non-driven resting state.
  • an external toothing 37 is provided on the side facing away from the second adjusting fitting part 12, which toothing is formed together with the toothed ring 17 in a common embossing process.
  • a compensation member 40 is arranged, which has like the two adjustment fitting parts 11 and 12 has a substantially flat disc shape and made of steel.
  • the compensation part 40 is formed on the first fitting part 11 side facing as a ring gear 42, i. provided with a corresponding internal toothing.
  • the ring gear 42 meshes with the external teeth 37, wherein the root circle of the ring gear 42 has a larger diameter by at least one tooth height than the tip circle of the external teeth 37 and the number of teeth of the ring gear 42 is correspondingly different from the number of teeth of the external teeth 37.
  • the compensating part 40 is arranged coaxially to the second adjusting fitting part 12, ie the axes of rotation are aligned with each other, wherein the diameter of the compensating part 40 is preferably slightly smaller than that of the second adjusting fitting part 12, and - like the first adjusting fitting part 11 - Surpassed by Justierbeschlag ring 30, wherein radially between the compensation part 40 and the Justierbeschlag-ring 30 preferably still a bearing ring 44 is arranged.
  • An attached to the driver 21, preferably verclipster with the drive sleeve 21a circlip 45 serves as a backup for the driver 21.
  • the exact design of the ring gear 42 is selected so that the wobbling movement of the first adjustment fitting part 11 relative to the second adjustment fitting part 12 by a further wobbling movement of the compensating part 40 relative to the first adjusting fitting 11 is compensated.
  • the compensating part 40 thus describes a pure rotational movement relative to the second adjusting fitting part 12.
  • the fitting 8 has as a second single fitting a locking fitting 50, which serves to lock the fitting 8 in the various positions of the backrest 4, since the non-self-locking Justierbeschlag 10 can contribute anything this.
  • the locked locking fitting 50 bridges the Justierbeschlag 10 with respect to the power flow.
  • the open locking fitting 50 grants the adjustment fitting 10 the full freedom of movement and full power flow during the drive of the Justierbeschlags 10.
  • This "change circuit" is to be distinguished from a constant parallel arrangement with respect to the power flow, as is known for increased load bearing, for example from DE 35 29 887 C2, and serves for Gurtintegralsitze.
  • the locking fitting 50 is formed as a detent fitting in a manner as described in WO 00/44582 Al, the disclosure of which is expressly incorporated.
  • the locking fitting 50 has a first locking fitting 51 and a second locking fitting 52 each having a substantially flat disc shape.
  • the second locking fitting part 52 has four guide and bearing segments for radially guiding two latches 53 and for supporting the first locking fitting part 51.
  • the first locking fitting part 51 has corresponding to the first adjustment fitting part 11 a sprocket with an internal toothing, with which cooperates both for locking the locking fitting 50 with the bolts 53 so rests for storage on the guide and bearing segments.
  • the latch 53 are pressed by a spring-loaded, non-rotatably seated on a second driver 55 second eccentric 56 radially outward to the ring gear and pulled to unlock the Arretierbeschlags 50 by a drive plate 57 radially inward.
  • the driver disk 57 is rotatable by means of the second eccentric 56 or directly by means of the second driver 55 due to actuation of a lever 59 arranged outside the arresting fitting 50 and acting on the second driver 55.
  • a lock fitting ring 60 is provided, which is arranged along the outer periphery of the second locking fitting 52 and connected thereto, for example, is pressed, and on the other hand, the first locking fitting 51 engages over.
  • the Justierbeschlag 10 and the locking fitting 50 are aligned in a specific orientation to each other.
  • the “inner fitting parts”, for example the compensation part 40 of the Justierbeschlags 10 and the first fitting 51 of the locking fitting 50 are facing each other and connected to each other, for example, by individual welds as transport lock 63, while the "outer fittings", i. in the present case, the second adjusting fitting part 12 and the second locking fitting part 52, facing away from each other.
  • the lever 59 On the outside of the second locking fitting 52, the lever 59 is arranged, while on the outside of the second adjusting fitting part 12 (or within the eccentric of the Justierbeschlags 10) on an engine mount 64, an electric motor 65 is arranged with a coupling 67 which the in the driver 21 cross drive shaft 22 drives.
  • a relay 69 is connected by means of a cable 71 in connection with the lever 59th
  • the relay 69 is first actuated, which unlocks the locking fitting 50 by means of the lever 59 and actively holds in the unlocked state. Then, the electric motor 65 drives the Justierbeschlag 10. When the desired inclination is reached, the electric motor 65 stops, and the relay 69 releases the lever 59, so that the locking fitting 50 can lock automatically. In order to resolve "tooth to tooth” positions, it is possible for the electric motor 65 to slightly turn back (or continue to rotate) prior to final stoppage to allow the detent fitting 50 to be rotated about half the tooth position and fully locked.
  • a first outer adapter 81, a second outer adapter 82 and an inner adapter 83 are provided.
  • the two outer adapters 81 and 82 both have a plane basic shape, each with a bearing eye 85 perpendicular to the axial direction, from which connection tabs 87 can project axially at the edge. In the present case are from the first outer adapter 81 two connecting plates 87 from the second outer adapter 82 no.
  • the two outer adapters 81 and 82 are to be connected to each other by means of the connecting plates 87 to form a hollow box.
  • the inner adapter 83 has a fork 89 with a semicircular receptacle. For special high load cases, the inner adapter 83 may be extended radially beyond the middle of the fitting 8 and instead of the fork 89 have a ring-shaped surrounded by material, another bearing eye.
  • the fitting 8 is received by the fork 89 of the inner adapter 83 and then the inner adapter 83 is fixedly connected to the "inner fitting parts" 40, 51, preferably welded, most preferably laser welded. Then, the "outer fitting parts" 12, 52 are overlapped with the outer adapters 81 and 82, preferably each one shoulder of the "outer fitting parts” 12, 52 comes to lie in a respective bearing eye 85, and finally the outer adapters 81 and 82 directly with the respective "outer fitting parts" 12, 52 and with each other by means of the connecting plates 87 firmly connected.
  • the assignment to seat part 3 and back 4 depends on the application.
  • the connecting straps 87 are arranged so far from the backrest pivot axis that the inner adapter 83 can dip during the pivoting of the backrest 4 between the outer adapters 81 and 82.
  • Particularly preferred because of the solid and therefore good connection possibility is an arrangement of Justierbeschlag 10 and Arretierbeschlag 50, wherein the Justierbeschlag ring 30 and the Arretierbeschlag ring 60 are connected to the respective "inner fittings", ie together with the fork 89 of the inner Adapters 83 can be connected.

Landscapes

  • 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)

Abstract

L'invention concerne un mécanisme pour un siège de véhicule, notamment pour un siège de véhicule automobile. Le mécanisme selon l'invention comprend deux mécanismes individuels (10, 50) qui sont voisins axialement et parallèles l'un à l'autre par rapport à la chaîne cinématique et qui présentent respectivement au moins deux éléments de mécanisme (11, 12, 40, 51, 52) rotatifs l'un par rapport à l'autre, les éléments de mécanisme intérieurs pouvant être reliés entre eux et les éléments de mécanisme extérieurs pouvant être reliés entre eux. Selon l'invention, un mécanisme individuel est réalisé sous forme de mécanisme d'ajustage (10) servant à régler le mécanisme (8) et l'autre mécanisme individuel est réalisé sous forme de mécanisme d'arrêt (50) servant à bloquer le mécanisme (8). Deux éléments de mécanisme (11, 12) du mécanisme d'ajustage (10) sont reliés entre eux au moyen d'un engrenage planétaire à excentrique non autobloquant, le mécanisme d'arrêt bloqué (50) se substituant au moins largement au mécanisme d'ajustage (10) eu égard à la chaîne cinématique.
EP07711613A 2006-04-04 2007-02-21 Mécanisme pour un siège de véhicule Withdrawn EP2001705A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006015558A DE102006015558B3 (de) 2006-04-04 2006-04-04 Beschlag für einen Fahrzeugsitz
PCT/EP2007/001486 WO2007115603A1 (fr) 2006-04-04 2007-02-21 Mécanisme pour un siège de véhicule

Publications (1)

Publication Number Publication Date
EP2001705A1 true EP2001705A1 (fr) 2008-12-17

Family

ID=38055157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07711613A Withdrawn EP2001705A1 (fr) 2006-04-04 2007-02-21 Mécanisme pour un siège de véhicule

Country Status (7)

Country Link
US (1) US7677665B2 (fr)
EP (1) EP2001705A1 (fr)
JP (1) JP2009532144A (fr)
KR (1) KR20080107347A (fr)
CN (1) CN101415583A (fr)
DE (1) DE102006015558B3 (fr)
WO (1) WO2007115603A1 (fr)

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DE102006015558B3 (de) 2008-02-14
US20090102265A1 (en) 2009-04-23
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WO2007115603A1 (fr) 2007-10-18
CN101415583A (zh) 2009-04-22
US7677665B2 (en) 2010-03-16

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