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
  • B60N2/235—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
  • B60N2/236—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 linearly movable
• • 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
• • 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

• Fitting for a vehicle seat The invention relates to a fitting for a vehicle seat having the features of the preamble of claim 1.
• a fitting of this type is known from DE 10 2005 046 807 B3.
• the spring arrangement In order for the spring arrangement to act on the eccentric with no lateral force, it consists of two nested spiral springs.
• the invention is based on the object to provide an alternative 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 subclaims.
• the spring arrangement is formed as a single spiral spring. With its first spring end, which is preferably arranged radially on the outside, the spring arrangement is clamped to a holder of one of the two fitting parts and fully supported, ie the first spring end is completely immobile relative to the holder.
• the second spring end which is preferably arranged radially inward, therefore no longer needs to support the spring arrangement and can thus deliver a pure torque, with which it acts at least indirectly on the eccentric.
• the eccentric can thus be subjected to transverse force-free or almost without lateral force.
• the first spring end is positively against the holder.
• the holder may be a mating receptacle for the first spring end or the first spring end forms a mating receptacle for the holder.
• the second spring end is preferably also a form-fitting, on the eccentric or on a non-rotatable with the eccentric or at least coupled to entrainment driver.
• a decoupling between the driver and eccentric preferably by means of a free path possible.
• the second possibility excludes such decoupling, but allows a greater spring length (because the second spring end several turns can be located further inside), so that a flatter spring characteristic is possible.
• the two innermost turns abut each other in sections, for example by a contact portion abuts in the turn after the second spring end at the second spring end.
• the spring assembly then presses - due to their bias - self-locking to the driver, i. It secures the positive connection between the second spring end and driver.
• This configuration of the spring arrangement in the region of the second spring end is independent of the design of the spring arrangement in the region of the first spring end, so that it can be implemented in various combinations.
• the fitting is preferably used for adjusting the inclination of the back of the vehicle seat, but can also be used at other locations of the vehicle seat, for example as in a height or seat inclination adjuster.
• the spring arrangement can act both on a movable component of a locking device of the fitting, in this case the driver or eccentric, and act between the two fitting parts, for example, act as a compensation spring between the back and seat part or between a rocker and the seat frame.
• the term "fitting" should then be understood broadly and include also unverrie- gelbare joints. In the following the invention is explained in more detail with reference to an embodiment shown in the drawing in different variants. 1 shows a first variant with a pin as a holder for the spring arrangement and an application of the driver,
• FIG. 2 is a perspective view of the spring assembly of FIG. 1
• FIG. 3 is a second variant with a pin as a holder for the spring assembly and an application of the driver,
• FIG. 4 is a perspective view of the spring assembly of FIG. 3
• FIG. 5 is a perspective view of the second variant of FIG. 3
• FIG. 6 shows a third variant with a pin as a holder for the spring arrangement and a loading of the driver
• Fig. 7 shows a fourth variant with a receptacle as a holder for the spring assembly and an application of the driver
• FIG. 8 shows a fifth variant with a receptacle as a holder for the spring arrangement and a direct loading of the eccentric
• FIG. 10 is an exploded view of a fitting with a pin as a holder for the spring assembly
• FIG. 10 1 1 an axial section through the fitting of Fig. 10, 12 is a schematic representation of a vehicle seat
• FIG. 13 is an exploded view of a fitting with a receptacle as a holder for the spring assembly
• a vehicle seat 1 for a motor vehicle has a seat part 3 and a backrest 4 that is adjustable in its inclination relative to the seat part 3.
• a transmission rod 7 is rotated, which is arranged horizontally in the transition region between the seat part 3 and backrest 4.
• the transmission rod 7 engages in a fitting 10.
• the transmission rod 7 defines the directional information used in a cylindrical coordinate system.
• the fitting 10 is formed as a detent fitting, in which a first fitting part 1 1 and a second fitting part 12 are locked together and after unlocking relative to each other about a (aligned with the transmission rod 7) axis A are rotatable, as described for example in DE 10 2006 015 560 B3, the relevant disclosure of which is expressly incorporated.
• the first fitting part 11 for example, firmly connected to the structure of the backrest 4, so lean backrest.
• the second fitting part 12 is then firmly connected to the structure of the seat part 3, so fixed seat.
• the assignments of the fittings 1 1 and 12 may also be reversed, i. the first fitting part 1 1 would then be fixed seat part and the second fitting part 12 leaning.
• the two fitting parts 1 1 and 12 can each inscribe approximately in a circular disc shape.
• the two fitting parts 11 and 12 are preferably made of metal, in particular hardened steel.
• a Umklamm réellesring 13 provided to accommodate the axially acting forces, ie the cohesion of the fitting parts 1 1 and 12 is a Umklamm réellesring 13 provided.
• Such cohesion by means of a Umklamm réellesrings is described for example in US 6,799,806 B2.
• the preferably metallic, uncured Umklamm réellesring 13 is fixedly connected to one of the two fitting parts 1 1 and 12, for example, with the second fitting member 12, preferably welded or - by the overreaches it with its associated fitting - crimped.
• the Umklamm ceremoniessring 13 has a radially inwardly bent edge, by means of which he, optionally with the interposition of a separate sliding ring 13a, the other of the two fitting parts 1 1 and 12, for example, the first fitting part 1 1, radially overlaps externally, without the To hinder relative movement of the two fitting parts 1 1 and 12.
• the two fitting parts 1 1 and 12 therefore together (with the Umklamm réellesring 13) a disc-shaped unit.
• the second fitting part 12 has - in the present case four - guide segments 14 which, with straight guide surfaces in pairs, each guide a bolt 16 laterally in the radial direction.
• the - in the present case a total of four - bars 16 are - in the present case by 90 ° - offset from each other in a defined between the two fitting parts 11 and 12 space.
• the latch 16 are provided at its radially outer end with a toothing, which engage with a ring gear 17 of the ring gear designed as a first fitting part 1 1 can engage (can). When the ring gear 17 and the latches 16 cooperate, the fitting 10 is locked.
• the guide segments 14 are each with a curved bearing surface on the sprocket 17 of the first fitting part 1 1, whereby the two fitting parts 1 1 and 12 store each other.
• a driver 21 is arranged, for example made of plastic, which rotatably by means of a central bore 23 - or at least coupled to driving - sitting on the transmission rod 7 and rotatably on at least one of the two fitting parts 11 and 12, in this case the first Be - Impact part 1 1, is stored, more precisely in a central opening thereof.
• On the driver 21 is rotatably or at least coupled to driving an eccentric 27, which is arranged in the defined between the fitting parts 1 1 and 12 space.
• a spring arrangement 35 is at least partially arranged in a space provided by one of the two fitting parts 1 1 and 12, in the present case of the second fitting part 12, and in the present case (radially) supported outside.
• the spring assembly 35 acts on the eccentric 27 directly or indirectly, for example by (inside) rotationally fixed on the driver 21 (radially) sits.
• the eccentric 27 acted upon by the spring arrangement 35 acts on the radially movable latches 16 and acts on them, so that they are pressed radially outward in order to engage in the ring gear 17, with which the fitting 10 is locked.
• a control disk 36 is disposed in the space axially between the bars 16 and the first fitting part 1 1 and sitting in the present rotation on the eccentric 27.
• the control disk 36 has - in the present case four - control tracks, each cooperating with a nose 38 of each bolt 16.
• the lugs 38 are in the axial direction of the associated bars 16 from.
• the driver 21 is axially secured, for example, by a securing ring 43, which is fastened during the assembly of the fitting 10 on the driver 21, preferably clipped.
• the driver 21 and the retaining ring 43 each have a flange which rests on the outside of one of the two fitting parts 1 1 or 12, and acts as a seal.
• the driver 21 may be centrally in the axial direction of larger diameter than at its mounted in the fitting parts 11 and 12 ends, so that the two fitting parts 1 1 and 12 axially secure the driver 21 and the locking ring 43 is omitted.
• the free-pivot control element 48 has stop tracks which cooperate with the lugs 38 of the latch 16 by limiting their movement radially outwards or let them unimpeded.
• the lugs 38 of the bars 16 are arranged alternately at different radial outside or radially inside at the bars 16 assigned to them, so that adjacent lugs 38 are provided with different stop bars. sammen massage. Accordingly, two different configurations of the latch 16 are provided. Details are described in DE 10 2006 015 560 B3.
• the spring arrangement 35 is designed as a single spiral spring.
• the windings in the arranged in a plane, helical part of the spring assembly 35 preferably have the same distance from each other.
• the spring arrangement 35 is firmly clamped at its radially outer first spring end 35a on the second fitting part 12.
• a holder 12a formed at which the first spring end 35a of the spring assembly 35 in the plane of the spiral part at at least two opposite points Pi and P 2 on Holder 12a is applied, whereby the spring assembly 35 is supported.
• the holder 12a is an elongate pin axially projecting from the second fitting part 12, which is the radially outer one first spring end 35a of the spring arrangement 35 encloses positively.
• the holder 12a is oriented tangentially in the first and second variants and radially in the third variant.
• the first spring end 35a has an opposite curvature and in the first and second variants the same curvature as the helical part of the spring arrangement 35.
• the points Pi and P 2 are located on the two opposite longitudinal sides of the serving as a holder 12 a pin.
• the holder 12a is a U-shaped receptacle in the material of the second fitting part, which opens radially inward and into which the first spring end 35a is inserted is.
• the points Pi and P 2 are located on the two opposite inner sides of this recording.
• the spring arrangement 35 Since the spring arrangement 35 is already fully supported on the same by clamping on the holder 12 a, it can act with its radially inner second spring end 35 b free of lateral forces on the eccentric 27.
• the spring torque increases linearly over the operating angle.
• the spring arrangement 35 acts indirectly on the eccentric 27 one.
• the spring arrangement 35 bears with its second spring end 35b in a form-fitting manner against a square 21a formed on the driver 21.
• the positive engagement of the second spring end 35b on the square 21 a takes place on all four sides of the square 21 a, at least in each case in sections, on some pages also completely.
• the driver 21 then acts on the eccentric 27th
• the second variant is improved in that it has a self-locking inner receptacle.
• the spring arrangement 35 has a contact section 35c in the winding after the second spring end 35b (ie, a turn radially further outward than the second spring end 35b).
• This contact portion 35c represents a radially inwardly projecting deviation from the regular course of the spiral portion of the spring assembly 35.
• the contact portion 35c abuts the second spring end 35b, ie the radially inner side of the contact portion 35c is in contact with the radially outer side of the second spring end 35b, with a bias, in this case the bias of the spring assembly 35.
• the following on the second spring end 35b corner of the square 21a of the driver 21 is defined by a cam 21aa, which serves to entrain the eccentric 27.
• the cam 21aa is preferably formed with an undercut (in the axial direction).
• the section of the spring arrangement 35 following the second spring end 35b preferably has a larger radius of curvature than the cam 21aa, so that this section of the spring arrangement 35 comes to lie in the undercut of the cam 21aa, ie the cam 21aa (in the axial direction). engages behind.
• the space for the next turn i.e., the turn with the contact portion 35 c
• an axial securing for the spring assembly 35 is provided.
• the spring arrangement 35 acts directly on the eccentric 27.
• the spring arrangement 35 rests with its second spring end 35b in a form-fitting manner on two pins 27a which are opposite the axis A and protrude axially from the eccentric 27.

Landscapes

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

Applications Claiming Priority (3)

Publications (1)

Family

ID=42063474

Family Applications (1)

Country Status (6)

Families Citing this family (41)

Family Cites Families (10)

• 2009
  • 2009-09-10 DE DE102009041492A patent/DE102009041492A1/de not_active Withdrawn
  • 2009-12-16 DE DE202009016989U patent/DE202009016989U1/de not_active Expired - Lifetime
• 2010
  • 2010-08-20 KR KR1020127009264A patent/KR20120067356A/ko not_active Application Discontinuation
  • 2010-08-20 US US13/395,403 patent/US20120169105A1/en not_active Abandoned
  • 2010-08-20 CN CN2010800402298A patent/CN102481870A/zh active Pending
  • 2010-08-20 WO PCT/EP2010/005106 patent/WO2011029522A2/de active Application Filing
  • 2010-08-20 EP EP10745576A patent/EP2475545A2/de not_active Withdrawn

Non-Patent Citations (1)

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