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
  • 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
  • B60N2/22—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
  • B60N2/2352—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 external pawls

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, which is provided as a tilt adjuster for the back of a vehicle seat.
• the first fitting part is pressed into the ring, which engages over the second fitting part.
• the weld through the first adapter runs along the baseline and connects first fitting, ring and first adapter simultaneously.
• the fitting is fastened to the structure of the vehicle seat during final assembly.
• the invention is based on the object to improve a fitting of the type mentioned, in particular with regard to the production. This object is achieved by a fitting with the features of claim 1.
• Advantageous embodiments are the subject of the dependent claims.
• the sectionwise course of the weld on the different sides of the baseline is without significant Additional costs achieved.
• the course of the weld is preferably a pendulum about the baseline, ie viewed in the circumferential direction of the baseline, a continuous change of sides, preferably no undercuts occur, which allows easy production with a unidirectional feed in the circumferential direction.
• the change caused by the pendulum is preferably repeated several times over the circumference, for example a dozen times.
• this preferably extends in sections in the material of the first fitting part and partially in the material of the ring, wherein it is preferably continuous in the material of the first adapter.
• the weld may be circumferential and closed in the circumferential direction of the fitting or have individual sections separated from one another, which in each case intersect the base line at least once or are arranged alternately on the two sides of the base line.
• the baseline is annular, i. as a circular line, and the weld periodically oscillates around the baseline, but other symmetries or an unbalanced course are possible.
• the laser welding is preferred because then the weld can be formed specifically and without additions.
• the laser welding is then preferably carried out in the same direction as the attachment of the respective adapter, that is usually through this. It is also possible, instead of using a separately formed adapter, for example, instead of that adapter, which is assigned to the second fitting part, to attach the relevant fitting directly to the structure, so that optionally for the teaching of the present structural part in place of the separate adapter occurs.
• the term "adapter" is therefore intended in the sense of the invention in addition to separately trained adapters also formed on structural parts formed material parts or the structural parts themselves.
• the fitting is used as an adjuster in a vehicle seat, for example as a tilt adjuster for the backrest and / or as a tilt adjuster for the seat cushion and / or to drive a height adjuster.
• Fig. 2 is a section along the line II-II in Fig. 1, and
• Fig. 3 is a schematically illustrated vehicle seat.
• a vehicle seat 1 for a motor vehicle has for the inclination adjustment of its backrest 3 on its two sides depending on a fitting 5, which is designed as a detent fitting, but could also be designed as a geared fitting.
• the two fittings 5 are connected to each other by means of a transmission rod 7 in gear connection.
• a rotationally fixed on the transmission rod 7 seated hand lever 9 is used for manual actuation of the fittings 5.
• the following directional information refers to the cylindrical coordinate system, which is defined by the horizontally and transversely to the direction of travel arranged transmission rod 7.
• the fitting 5 is similar in construction to that of DE 101 05 282 A1, the disclosure of which is expressly incorporated.
• Each fitting 5 has an approximately disk-shaped first fitting part 11 and also an approximately disk-shaped second fitting part 12.
• the first fitting part 11 fixed to the seat part by means of four guide and bearing segments 15 carries two tooth segments 17, which are pressed radially outwards by a spring-loaded eccentric 21 and pulled radially inwards again by a drive plate 23.
• the eccentric 21 sits on a transmission element 27 made of plastic, which in turn sits non-rotatably on the transmission rod 7.
• the second fitting part 12 is rotatable relative to the first fitting part 11, and before installation in the vehicle seat 1 by 360 °.
• the second fitting part 12 In the case of a training of the fitting 5 as a self-locking gear fitting, the second fitting part 12 would be almost the same, but would be formed on the first fitting part 11, a gear, which - driven by a rotatable relative to him eccentric - perform a rolling movement on the ring gear 30 of the second fitting part 12 would, which presents itself as a rotary motion with superimposed wobbling motion.
• a Umklamm ceremoniessring hereinafter referred to briefly as ring 35 is disposed on the radially outwardly facing peripheral surface of the first fitting part 11 and the second fitting part 12, wherein the first fitting part 11 is firmly pressed into the ring 35.
• the ring 35 engages with a flanged edge, the second fitting part 12 radially.
• an intermediate ring 39 is preferably provided between the second fitting part 12 and ring 35. The fitting 5 would already be transportable in this state.
• a designated adapter 41 and a purpose-adapted second adapter 42 is attached to the fitting 5.
• the intended for attachment to the backrest 3 second adapter 42 is fixed by laser welding on the second fitting part 12 on the side remote from the first fitting part 11 in the axial direction.
• the intended for attachment to the seat part first adapter 41 is applied in the axial direction of the first fitting part 11 on the side facing away from the second fitting part 12, wherein it completely covers the first fitting part 11 to a central opening.
• the first adapter 41 has a larger opening has the diameter of the first fitting part 11 and the latter receives with this opening, wherein it rests on a shoulder formed by the ring 35.
• a peripheral (laser) welding seam 45 for connecting is formed from the same • direction coming through the material of the first adapter 41, the first fitting part 11 and the ring 35 pass, so as piercing seam, so that these three components rigidly connected by means of a welding process, are.
• a (circular) annular baseline 47 which is defined by the contact surface of the ring 35 on the first fitting part 11, the weld seam 45 oscillates around this baseline 47 in the radial direction, ie viewed in an axial viewing direction, it has a wave shape during it oscillates in the circumferential direction.
• a continuous weld seam 45 thus runs, except in the material of the first adapter 41, still partially in the material of the first fitting part 11 and in sections in the material of the ring 35, wherein the base line 47 is crossed several times.
• the said three components (first fitting part 11, ring 35, first adapter 41) are connected to one another by a single weld seam 45.
• the weld 45 is not formed continuously, but consists only of individual sections separated from each other, for example, the baseline 47 crossing sections, whereby further said three components are connected together.
• the oscillation of the weld 45 takes place periodically, that is to say with a certain symmetry, but in the present case deviates from a sinusoidal shape.

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)

Priority Applications (5)

Applications Claiming Priority (2)

Related Child Applications (1)

Publications (2)

Family

ID=34813730

Family Applications (1)

Country Status (6)

Cited By (2)

Families Citing this family (21)

Citations (1)

Family Cites Families (18)

• 2004
  • 2004-04-17 DE DE102004018744A patent/DE102004018744B3/de not_active Expired - Fee Related
• 2005
  • 2005-04-09 EP EP05716567A patent/EP1737696B1/de not_active Expired - Lifetime
  • 2005-04-09 WO PCT/EP2005/003761 patent/WO2005100079A2/de not_active Ceased
  • 2005-04-09 DE DE502005002836T patent/DE502005002836D1/de not_active Expired - Lifetime
  • 2005-04-09 JP JP2007507728A patent/JP4450852B2/ja not_active Expired - Fee Related
  • 2005-04-09 PL PL05716567T patent/PL1737696T3/pl unknown
• 2006
  • 2006-10-16 US US11/582,054 patent/US7497520B2/en not_active Expired - Fee Related

Patent Citations (1)

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