WO2017071916A1 - Système de ferrure pour siège de véhicule et siège de véhicule - Google Patents

Système de ferrure pour siège de véhicule et siège de véhicule Download PDF

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Publication number
WO2017071916A1
WO2017071916A1 PCT/EP2016/073627 EP2016073627W WO2017071916A1 WO 2017071916 A1 WO2017071916 A1 WO 2017071916A1 EP 2016073627 W EP2016073627 W EP 2016073627W WO 2017071916 A1 WO2017071916 A1 WO 2017071916A1
Authority
WO
WIPO (PCT)
Prior art keywords
shaft
axial securing
axial
fitting
fitting system
Prior art date
Application number
PCT/EP2016/073627
Other languages
German (de)
English (en)
Inventor
Reinhard Kraus
Grit Scholz
Gunther Hille
Thomas Mayer
Original Assignee
Adient Luxembourg Holding S.à.r.l.
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 Luxembourg Holding S.à.r.l. filed Critical Adient Luxembourg Holding S.à.r.l.
Publication of WO2017071916A1 publication Critical patent/WO2017071916A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—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

Definitions

  • the invention relates to a fitting system for a vehicle seat, in particular for a motor vehicle seat, having an axially extending shaft which is rotatable in the circumferential direction, at least one fitting having a rotatably mounted driver for driving or unlocking the fitting, wherein the shaft with the Driver rotatably in the circumferential direction or coupled coupled to driving cooperates to rotate the driver, and an axial securing, which is integrally formed with the shaft to the
  • the invention also relates to a vehicle seat.
  • an axial securing device is designed as a circular abutment surface formed from the shaft.
  • the circular contact surface may be a coved section, a chamfered section or a folded section.
  • a fitting system for a vehicle seat is known, with an axially extending shaft which is rotatable in the circumferential direction, at least one fitting having a rotatably mounted and axially secured by a securing element driver for driving or unlocking the Has fitting, wherein the shaft with the driver in
  • DE 10 2010 044 947 A1 discloses a vehicle seat with a
  • the means of a Lehnenverstellers rotatable on a seat part is provided, wherein the backrest adjuster comprises a shaft which preferably transmits a torque to the backrest adjuster, wherein on the shaft at both ends an axial securing is provided. At one end is the
  • Axialommet a extending in the radial direction, reshaped region of a shaft end of the shaft, wherein a circumferential outer boundary of the axial securing has a circular shape.
  • the invention is based on the object to improve the strength of an axial securing a shaft of a fitting system for a vehicle seat, in particular to increase a radial extent of the axial securing.
  • the degree of deformation of the axial securing is to be reduced.
  • an axial space requirement should be minimized.
  • Vehicle seat be provided.
  • a fitting system for a vehicle seat in particular for a motor vehicle seat, with an axially extending shaft which is rotatable in the circumferential direction, at least one fitting having a rotatably mounted driver for driving or unlocking the fitting, wherein the Wave with the driver in
  • the axial securing can be supported directly or indirectly on the driver.
  • the axial securing can on the driver or on a
  • Abut driver locking securing element can also initially have a slight distance to the driver or to the securing the catch securing element and only after a
  • the small distance can be used to compensate for tolerances of a distance measure between two fittings to be coupled by the shaft.
  • the fitting system may have a shaft and a fitting.
  • Fitting system preferably has a shaft and two fittings.
  • exactly one shaft end of the shaft has a reshaped one
  • the other end of the shaft can be secured for example by means of a screw or a retaining ring.
  • the wave can be one
  • the shaft may have a spline.
  • the wave can be
  • the axial securing is preferably formed from the material of the shaft.
  • the axial securing can be upset.
  • the axial securing can by
  • the axial securing can be a cushioned
  • Section Section, a gekelchter section or a folded section.
  • the axial securing can be aligned parallel to a plane arranged perpendicular to the extension direction of the shaft.
  • the axial lock can
  • the axial securing can be largely flat.
  • a transition region between the axial securing and the remaining shaft can be rounded circumferentially.
  • the outer boundary of the axial securing can be rounded circumferentially in the axial direction in order to avoid sharp edges.
  • the axial securing may have an opening in the middle or off-center.
  • the axial securing can be annular.
  • the axial securing is such annular disc-shaped, that the outer boundary is arranged in the radial direction circumferentially at all points further out, as an outer point of a profile cross-section of the shaft.
  • the axial securing can be oval.
  • the axial securing can be polygonal.
  • the axial securing can be star-shaped.
  • the axial securing device can have at least one cam projecting in the radial direction.
  • the term outer boundary of the axial securing means the circumferential outer contour of the axial securing.
  • the peripheral outer boundary of the axial securing preferably runs continuously. This is to be understood in the mathematical sense, that is, the outer boundary is free of jumps.
  • the axial securing is annular disk-shaped.
  • the axial securing can have a recess formed in the axial direction.
  • material in the region of the recess can be displaced in the radial direction to the outside.
  • material in the region of the recess is preferably displaced to the outside in the region of the recess.
  • material in the region of the depression is preferably displaced beyond a base circle to the outside.
  • the base circle defines in areas outside the recess a circular outer boundary of the axial securing.
  • the recess is preferably, viewed in the axial direction, formed only on one side of the axial securing, in particular on one of the shaft
  • the radially outwardly displaced material forms a contact area.
  • the contact region can be designed in the form of a cam in the radial direction in the region of the depression.
  • the axial securing can be one recess or two or three or more
  • Wells and investment areas formed by the wells have.
  • the investment areas are preferably uniform over the circumference of the
  • Distributed axial securing but can also be arranged unevenly distributed.
  • the vehicle seat Due to the fact that the vehicle seat has a fitting system according to the invention, the vehicle seat is in
  • the invention provides a fitting system with an axial securing device, in particular for geared fittings, which, instead of a round contact with the fitting, has a partial contact, in particular a polygonal system.
  • This has the advantage that the degree of deformation in the production, in particular a compression, the axial securing is limited, and so the manufacturability is guaranteed with the same function.
  • the axial securing in the axial direction requires less space than a
  • the manufacturability of the axial securing is optimized because the degree of deformation is reduced compared to circular axial securing.
  • additional components such as an axial securing ring or a screw can be dispensed with.
  • the invention is based on the surprising finding that the Achieving a sufficiently high strength of the axial securing, in particular in the axial direction, a circumferential contact surface of the axial securing to the driver or the securing element is not necessary, and in particular a polygonal system or one or two-point system is sufficient.
  • Fig. 1 a side view of a vehicle seat, a perspective view of a fitting of a
  • Fitting system according to the invention according to a first embodiment, and adjacent components, a section of a section through a fitting, which is the same for all embodiments and known from the prior art, and is combined with a known from the prior art wave,
  • FIG. 4 shows a perspective view of a shaft with an axial securing device of a fitting system according to the first exemplary embodiment
  • FIG. 5 shows a perspective view of a shaft with an axial lock of a fitting system according to a second exemplary embodiment
  • 7 is a partial side view of a shaft with a
  • FIG. 8 a plan view of the shaft from FIG. 7.
  • a vehicle seat 1 for a motor vehicle shown in FIG. 1, has a seat part 3 and a backrest 4 that is adjustable in its inclination relative to the seat part 3.
  • a shaft 7 is rotated, for example manually by means of a handwheel 5 or motor, for example by means of an electric motor.
  • the shaft 7 is arranged horizontally in the transition region between the seat part 3 and the backrest 4.
  • Vehicle seat 1 engages the shaft 7 rotatably in each case a fitting 10 a.
  • the shaft 7 defines the directional information used
  • Fittings 10 are components of a fitting system shown in Figure 2 for adjusting the inclination of the backrest. 4
  • Each of the two fittings 10, of which only one is described below on the basis of a similar construction, has a first fitting part 11 and a second fitting part 12, which are rotatable relative to one another.
  • the assembly of the fitting 10 is one of the two fitting parts 1 1; 12 associated with the backrest 4 and connected to the structure, while the other of the two fitting parts 1 1; 12 assigned to the seat part 3 and is firmly connected to the structure.
  • the relative rotation of the two fitting parts 1 1; 12 causes the inclination adjustment of the backrest 4.
  • the two fitting parts 1 1 For a defined interface of the fitting 10 to the structures of the seat part 3 and backrest 4 are on the two fitting parts 1 1; Provided 12 axially projecting contours, which form-fitting with corresponding openings in the structures of seat part 3 and backrest 4, for example, in custom adapters, present a seat part side adapter 3a and a reclining side adapter 4a, or directly in a seat frame side part or back side rail together.
  • the thus pre-positioned fitting 10 can then be attached to the respective structure, for example by laser welding or MAG welding.
  • the first fitting part 1 1 with the reclining-side adapter 4a and the second fitting part 12 welded to the seat part side adapter 3a.
  • a driver 24 is rotatably mounted.
  • Driver 24 is centrally provided with a bore for receiving the shaft 7.
  • the profile of the bore is suitable for the profile of the shaft 7, in this case a splined shaft profile formed.
  • the shaft 7 and the driver 24 are preferably rotatably coupled to each other. However, it can also be provided in the circumferential direction an idle, so that the shaft 7 and the driver 24 (after
  • the driver 24 has in the axial direction preferably on one side a cover plate 25 or a flange, by means of which it on the outside of one of the two fitting parts 1 1; 12 is present. On the outside of the other of the two
  • the driver 24 is axially secured by a securing element 43.
  • the securing element 43 is an annular component which
  • the fitting 10 is designed as a geared fitting, in which the first fitting part 1 1 and the second fitting part 12 are connected by means of a gear for adjusting and locking, more precisely by means of a - present
  • WO 201/151017 A1 is described, the relevant disclosure of which is expressly incorporated.
  • To form the transmission is on the second Fitting part 12 an externally toothed gear and formed on the first fitting part 1 1 an internally toothed ring gear, which mesh with each other.
  • the diameter of the top circle of the external toothing of the toothed wheel is smaller by at least one tooth height than the diameter of the root circle of the internal toothing of the toothed ring.
  • Number of teeth of gear and ring gear of at least one tooth allows a rolling movement of the ring gear on the gear.
  • Fitting parts 1 1; 12, in this case the second fitting part 12, has a collar 19, which preferably serves as a bearing for the driver 24.
  • On the collar 19 are two not shown in Figure 3 wedge segments (with their curved inner surfaces) supported, the (with their curved outer surfaces and
  • the other of the two fitting parts 1 1; 12, in this case the first fitting part 1 1, store.
  • the driver 24 has a game between the narrow sides of the wedge segments summarizing
  • a third fitting part can be provided, which on the one hand is firmly connected to the structure of the backrest 4 and on the other hand relative to the non-seat part 3 associated fitting part 1 1; 12 pivotally mounted and locked releasably with this.
  • This design allows a free pivoting of the backrest 4 to facilitate access to a rear row of seats, without the set inclination of the backrest 4 is changed.
  • basic type of fitting 10 is designed as a detent fitting, in which the first fitting part 1 1 and the second fitting part 12 are locked together, as it
  • the second fitting part 12 has guide segments which, with straight guide surfaces in pairs, each guide a bolt laterally in the radial direction.
  • the bars are provided at their radially outer end with a toothing, which with a
  • Sprocket of trained as a ring gear first fitting part 1 1 engage can.
  • the guide segments are each with a curved bearing surface on the sprocket of the first fitting part 1 1, whereby the two fitting parts 1 1; 12 store each other.
  • On the driver 24 is rotatably or at least coupled to driving an eccentric, which in the between the fitting parts 1 1; 12 defined space is arranged.
  • a spring arrangement urges the eccentric which acts on and urges the radially movable latches so that they are pressed radially outward to engage the ring gear.
  • a control disk which is preferably non-rotatably mounted on the eccentric or on the driver 24, cooperates with the bolts to the rotation of (a few degrees) of the driver 24 (and thus driven eccentric and the control disk) against the force of the spring assembly the Retrieving bolt, ie from the ring gear to pull radially inward, whereby the fitting 10 is unlocked and the two fitting parts 1 1; 12 are rotatable relative to each other.
  • Backrest 4 is characterized adjustable between several, suitable for sitting use positions. All embodiments have in common is that for preventing axial displacement of the shaft 7 relative to the fitting 10 and thus to
  • the axial lock 100; 200; 300; 400 is formed at one end of the shaft 7 at this.
  • FIG. 3 shows an axial securing device 70 known from the prior art with a circular outer boundary.
  • a maximum value of a radius R of the axial securing means 70 is limited by a material-dependent, maximum degree of deformation of the shaft 7. It can be seen that the axial securing 70 in radial
  • Securing the shaft 7 relative to the driver 24 in the other axial direction can be effected by a securing means which in the region of one of the axial securing 70; 100; 200; 300; 400 facing away from the end of the shaft 7 on the shaft. 7
  • the securing means may be, for example, a quick fastener or a screw, and at a fitting 10th
  • the axial lock 100; 200; 300; 400 and the securing means thus jointly secure the
  • opposite securing means may have a slight distance to the respective associated driver 24 and its securing element 43.
  • the shaft 7 is thereby slightly in the axial direction
  • FIGS. 2 and 4 show a first exemplary embodiment of a shaft 7 with an axial securing device 100 formed thereon.
  • the axial securing device 100 is formed in one piece at one end of the shaft 7, in the present case formed from the material of the shaft 7.
  • the shaft 7 is preferably made of steel and as a splined shaft. Such waves are known for example from DE 43 40 696 C1 and WO 2008/028549 A1.
  • the axial securing 100 consists of the material of the shaft 7, which is formed in an end region of the shaft 7 radially outward.
  • the axial securing 100 is largely disc-shaped.
  • the axial securing 100 is a radially extending, deformed region of a shaft end of the shaft 7, the radial extent of the axial securing device 100 defining a circumferential outer boundary 110 of the axial securing device 100, and the outer boundary 10 having a shape deviating from a circular shape.
  • the axial securing device 100 has two diametrically opposite abutment regions 121; 122, which protrude over a base circle 1 15 of the axial securing 100 radially outward.
  • the base circle 1 15 has a radius R1 about a center M of the base circle 1 15, which preferably lies on a central axis of the shaft 7, which in turn preferably corresponds to a pivot axis of the backrest 4.
  • the two investment areas 121; 122 have the most radial
  • the outer boundary 1 10 has in the two investment areas 121; 122 each have a distance R2 to the center M, which changes in the circumferential direction, but is always greater than the radius R1 of the base circle 15, and greater than the maximum possible value of a radius R of the known from the prior art circular axial fuse 70th A contact between the axial securing 100 and the driver 24
  • the axial securing device 100 is simplified as one
  • the axial securing device 100 has an opening in the center, in particular if the shaft 7 is designed as a hollow shaft.
  • the axial securing 100 is then largely annular disc-shaped.
  • FIG. 5 shows a second exemplary embodiment of a shaft 7 with an axial securing device 200 formed thereon.
  • the axial securing device 200 is largely
  • the axial securing device 200 is a radial one
  • the axial securing device 200 has exactly one abutment region 221 which projects radially outward beyond a base circle 215 of the axial securing device 200.
  • the base circle 215 has a radius R1 around a center M of the base circle 215, which preferably lies on a central axis of the shaft 7, which in turn preferably one
  • the contact region 221 has a radially outermost contact surface of the axial securing device 200 on the driver 24 or its securing element 43.
  • the outer boundary 210 has in the contact region 221 a distance R2 to the center M, which changes in the circumferential direction, but is always greater than the radius R1 of the
  • the axial lock 200 has an opening in the center, in particular when the shaft 7 as Hollow shaft is formed. The axial lock 200 is then largely
  • FIG. 6 shows a third exemplary embodiment of a shaft 7 with an axial securing device 300 formed thereon.
  • the axial securing device 300 is largely
  • the axial securing device 300 is a radial one
  • the axial securing device 300 has exactly three contact regions 321; 322; 323, which protrude over a base circle 315 of the axial securing 300 radially outward.
  • the base circle 315 has a radius R1 around a center M of the base circle 315, which preferably lies on a central axis of the shaft 7, which in turn preferably corresponds to a pivot axis of the backrest 4.
  • Investment areas 321; 322; 323 have the most radially outer contact surfaces of the axial securing 300 to the driver 24 or the
  • the outer boundary 310 has in the contact areas 321; 322; 323 each have a distance R2 to the center M, which is located in
  • Circumferential changes but always greater than the radius R1 of the base circle 315, and greater than the maximum possible value of a radius R of the known from the prior art circular axial securing 70th
  • the axial securing device 300 has an opening in the center, in particular if the shaft 7 is designed as a hollow shaft.
  • the axial securing device 300 is then largely annular disk-shaped with an approximately triangular shape.
  • FIGS. 7 and 8 show a fourth exemplary embodiment of a shaft 7 with an axial securing device 400 formed thereon.
  • the axial securing device 400 is largely disk-shaped.
  • the axial securing 400 is a radial one
  • outer boundary 410 of the axial securing 400 and the outer boundary 410 has a shape deviating from a circular shape.
  • the axial securing device 400 has exactly one abutment region 421, which protrudes radially outwards via a base circle 415 of the axial securing device 400.
  • the base circle 415 has a radius R1 around a center M of the base circle 415, which preferably lies on a central axis of the shaft 7, which in turn preferably one
  • the contact area 421 serves as the radially outermost contact surface of the axial lock 400 on the driver 24 or its securing element 43.
  • the outer boundary 410 has in the contact area 421 a distance R2 to the center M, which changes in the circumferential direction, but is always greater than that Radius R1 of the
  • the axial securing 400 has on a side facing away from the axial extent of the shaft 7 side of the axial lock 400 has a recess 428 in the axial Direction in the axial securing 400 pressed, preferably pressed, is.
  • Axial securing 400 formed by the depression of the recess 428 in the axial securing 400 of the contact area 421 by material of the axial lock 400 flows in the radial direction to the outside.
  • the axial securing 400 is circumferentially flat, so that the recess 428 is formed only on one side of the axial securing 400.
  • the contact region 421 is formed in the form of a cam in the radial direction to the outside in the region of the depression 428 and protrudes radially beyond the base circle 415 with a radius R1.
  • the axial securing device 400 has an opening in the center, in particular when the shaft 7 is formed as a hollow shaft. The axial lock 400 is then largely
  • abutment regions 421 are integrally formed on the axial securing means 400, in particular evenly distributed over their circumference.

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

Abstract

L'invention concerne un système de ferrure, destiné à un siège de véhicule (1), en particulier un siège de véhicule automobile, comprenant un arbre (7) qui s'étend axialement et qui peut tourner dans la direction circonférentielle, au moins une ferrure (10) qui comporte un entraîneur (24) monté à rotation et destiné à entraîner ou déverrouiller la ferrure (10), l'arbre (7) coopérant avec l'entraîneur (24) solidairement en rotation dans la direction circonférentielle ou avec accouplement en entraînement pour faire tourner l'entraîneur (24), et une fixation axiale (100 ; 200 ; 300 ; 400) qui est conçue d'une seule pièce avec l'arbre (7) pour assurer la coopération de l'arbre (7) et de l'entraîneur (24) axialement dans au moins une direction. La fixation axiale (100 ; 200 ; 300 ; 400) est une zone déformée, s'étendant dans la direction radiale, d'une extrémité de l'arbre (7). Une bordure extérieure circonférentielle (110 ; 210 ; 310 ; 410) de la fixation axiale (100 ; 200 ; 300 ; 400) a une forme s'écartant de la forme circulaire. L'invention concerne également un siège de véhicule (1), en particulier un siège de véhicule automobile, équipé d'un tel système de ferrure.
PCT/EP2016/073627 2015-10-28 2016-10-04 Système de ferrure pour siège de véhicule et siège de véhicule WO2017071916A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102015221104 2015-10-28
DE102015221104.5 2015-10-28
DE102016201483.8A DE102016201483B4 (de) 2015-10-28 2016-02-01 Beschlagsystem für einen Fahrzeugsitz, sowie Fahrzeugsitz
DE102016201483.8 2016-02-01

Publications (1)

Publication Number Publication Date
WO2017071916A1 true WO2017071916A1 (fr) 2017-05-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/073627 WO2017071916A1 (fr) 2015-10-28 2016-10-04 Système de ferrure pour siège de véhicule et siège de véhicule

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DE (1) DE102016201483B4 (fr)
WO (1) WO2017071916A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020041119A1 (en) * 2000-09-28 2002-04-11 Yasuhiro Kojima Seat reclining device for vehicle
DE102010044947A1 (de) * 2010-09-10 2012-03-15 Johnson Controls Gmbh Fahrzeugsitz mit einer axial gesicherten Welle
DE102011051988A1 (de) * 2011-07-20 2013-01-24 C. Rob. Hammerstein Gmbh & Co. Kg Beschlag für eine Verstellvorrichtung eines Kraftfahrzeugsitzes sowie Verfahren zu dessen Herstellung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4340696C1 (de) 1993-11-30 1995-06-29 Keiper Recaro Gmbh Co Rückenlehnenverstellvorrichtung für Sitze, insbesondere Kraftfahrzeugsitze
DE10037190C2 (de) 2000-07-31 2003-09-25 Faurecia Autositze Gmbh & Co Kraftfahrzeugsitz mit neigungseinstellbarer Rückenlehne
DE102006041917B3 (de) 2006-09-07 2008-01-17 Keiper Gmbh & Co.Kg Übertragungsvorrichtung für einen Fahrzeugsitz
DE102009041492A1 (de) 2009-09-10 2011-03-24 Keiper Gmbh & Co. Kg Beschlag für einen Fahrzeugsitz
DE102010005471B4 (de) 2010-01-20 2019-08-29 Adient Luxembourg Holding S.À R.L. Beschlagsystem für einen Fahrzeugsitz
DE102010022615B4 (de) 2010-05-31 2012-01-05 Keiper Gmbh & Co. Kg Beschlag für einen Fahrzeugsitz und Fahrzeugsitz

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020041119A1 (en) * 2000-09-28 2002-04-11 Yasuhiro Kojima Seat reclining device for vehicle
DE102010044947A1 (de) * 2010-09-10 2012-03-15 Johnson Controls Gmbh Fahrzeugsitz mit einer axial gesicherten Welle
DE102011051988A1 (de) * 2011-07-20 2013-01-24 C. Rob. Hammerstein Gmbh & Co. Kg Beschlag für eine Verstellvorrichtung eines Kraftfahrzeugsitzes sowie Verfahren zu dessen Herstellung

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Publication number Publication date
DE102016201483B4 (de) 2023-05-04
DE102016201483A1 (de) 2017-05-04

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