EP2040874A2 - Structure d'un siège de véhicule - Google Patents

Structure d'un siège de véhicule

Info

Publication number
EP2040874A2
EP2040874A2 EP07801137A EP07801137A EP2040874A2 EP 2040874 A2 EP2040874 A2 EP 2040874A2 EP 07801137 A EP07801137 A EP 07801137A EP 07801137 A EP07801137 A EP 07801137A EP 2040874 A2 EP2040874 A2 EP 2040874A2
Authority
EP
European Patent Office
Prior art keywords
structural parts
sonotrodes
vehicle seat
welding
structural
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Withdrawn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
EP07801137A
Other languages
German (de)
English (en)
Inventor
Eckhard Kirch
Heiko Utsch
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 EP2040874A2 publication Critical patent/EP2040874A2/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Withdrawn legal-status Critical Current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
    • B60N2/68—Seat frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • 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
    • B60N2/64—Back-rests or cushions
    • 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
    • B60N2/68—Seat frames
    • B60N2/682—Joining means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/006—Vehicles

Definitions

  • the invention relates to a structure of a vehicle seat having the features of the preamble of claim 1.
  • Known supporting structures of vehicle seats have structural parts which are stamped from thin sheet steel and welded together, for example by means of laser welding.
  • the invention is based on the object to improve a structure of the type mentioned. This object is achieved by a structure having the features of claim 1. Advantageous embodiments are the subject of the dependent claims.
  • vehicle seat structures are said to have materials with high weight-specific stiffness, strength, and energy absorption to increase occupant safety, and on the other hand use lightweight materials to reduce the overall weight.
  • the production of load and weight optimized structures is achieved by the combination of different materials, i. Hybrid structures are created.
  • the structural parts are made of different materials and are joined together by means of ultrasound welding at at least one contact point, a low-cost, low-cost hybrid structure is available which provides the necessary strength.
  • the materials may be aluminum / aluminum alloys on the one hand and steel on the other hand.
  • other materials are possible, for example glass-fiber reinforced or other fiber-reinforced plastics, for example in combination with one of the metals mentioned.
  • Two or more structural parts can be connected together at the same time. The connection at several contact points at the same time, for example by means of several, possibly different sonotrodes an ultrasonic device is possible.
  • the structure is preferably the supporting structure of a backrest of a vehicle seat, but may also be the supporting structure of a seat part.
  • base plates and spars are connected to each other. It could, for example, side parts and crossbeams are interconnected.
  • FIG. 2 is a schematic side view of a vehicle seat
  • FIG. 3 shows a section through the exemplary embodiment along the line III-III in Fig. 1,
  • Fig. 5 is a partially sectioned and schematic representation of a known
  • FIG. 6 is a schematic partial view of the ultrasonic welding device with tilted sonotrode and matching workpieces
  • FIG. 9 is a side view of Fig. 8, and
  • FIG. 10 shows a perspective partial view of the ultrasound apparatus with mutually offset sonotrodes of alternating type.
  • a vehicle seat 1 of a motor vehicle has a seat part 3, which is connected to the vehicle structure S of the motor vehicle, and a backrest 6, which is pivotable relative to the seat part 3 and which is hinged to the seat part 3 on both sides.
  • the backrest 6 is locked to the seat part 3 or the vehicle structure S.
  • the vehicle seat 1 is a rear seat with split backrest, ie the backrest 6 is the 1/3 part or 2/3 part of said split backrest.
  • the backrest 6 has a load-bearing structure 10, which as structural parts comprises a base plate 12 and at least one spar 14.
  • the base plate 12 is substantially flat. It may have beads to reinforce it.
  • the spar 14 has a substantially U-shaped profile. In the present case, a plurality of spars 14 are connected to one another to form a peripheral frame, in some cases also formed in one piece with one another.
  • the existing spars 14 are arranged on the - facing the occupant in the seat - front of the base plate 12 and with this - to form box sections - connected.
  • the structure 10 thus formed is also padded on the front side of the base plate 12.
  • the back of the base plate 12 is directly facing the cargo space, possibly only painted or veneered, and can extend the loading floor at vorwenkter backrest 4.
  • the base plate 12 is in the embodiment of aluminum, more in the present case alloyed aluminum sheet Al Mg 4.5 Mn in a thickness of, for example, 0.7 mm or 1.0 mm.
  • the spar 14 is in the embodiment of steel, more specifically in the present case steel sheet in a thickness of 0.7 mm.
  • the spar 14 and the base plate 12 are ultrasonically welded together, i. connected by ultrasonic welding.
  • a per se known ultrasonic welding apparatus 100 has an anvil 101 (base plate), a relative to the anvil 101 fixed stand 103 and a relative to the stator 103 movable, in this case vertically movable slide 105.
  • the carriage 105 comprises a guide and receptacle for a feed unit 111, which is mounted relative to the carriage 105 movable, in particular in parallel, in said guide and receiving the carriage 105.
  • the feed unit 111 is thus movable relative to the anvil 101.
  • the feed unit 111 is acted on by a pneumatic cylinder 113 supported on the carriage 105, the piston 115 of which is actuated by means of a piston rod 116 and an attenuator 117 and a force rod.
  • Meßdose 119 in series present the feed unit 111 in this case acted upon on its upper side.
  • a return spring 121 biases the feed unit 111 in the direction of the pneumatic cylinder 113.
  • the feed unit 111 encloses a converter 125 which converts a high voltage generated by a generator 127 into ultrasound.
  • the ultrasound is transmitted through a booster 129 to one or more sonotrodes 131 at the tip of the advancing unit 111, i. present at the bottom.
  • the sonotrodes 131 set on the one workpiece, wherein the other workpiece rests on the boss 101, i. the workpieces are arranged between the sonotrodes 131 and the anvil 101.
  • the pneumatic cylinder 113 builds up a static pressure, so that the two workpieces in contact points P biased against each other, controlled and controlled by the load cell 119th
  • the ultrasound introduced into the upper workpiece via the sonotrodes 131 heats the materials (steel / aluminum) at the prestressed contact points P to approximately 300 ° -400 ° C. In this physical contact, an atomic interaction between the materials occurs, with aluminum atoms diffuse into the steel surface.
  • the spar 14 is welded to the base plate 12.
  • the welded joint is arranged in size and contour so that the required energy absorption of the structure 10 is ensured in terms of their strength.
  • a plurality of sonotrodes 131 simultaneously weld a plurality of contact points P in a plane between the spar 14 and the base plate 12.
  • the weld can be dimensioned differently according to the loads to be absorbed, which can also be achieved by the different sonotrodes 131.
  • the possible basic forms of Welding surfaces at the contact points P may in particular be annular, square or circular.
  • the stand 103 can act as a boundary for the base plate 12 when inserting the workpieces, i. define the maximum possible distance of a contact point P to the edge of the base plate 12.
  • the sonotrode 131 can be tilted, i. relative to the stand 103 and to the direction of movement of the carriage 105.
  • the entire feed unit 111 is tilted relative to the direction of movement of the carriage 105. Accordingly, the anvil 101 and the workpieces are tuned to this. A portion of the anvil 101 is tilted at the same angle.
  • the spar 14 has a correspondingly angled welding flange 14a, and the base plate 12 is shaped accordingly.
  • 6 shows a partial view of an ultrasound welding device 100 modified in this way.
  • the associated horns 131 In order to reduce the dot pitch between two pads P, it is advantageous to feed the associated horns 131 alternately from different sides with respect to the plane through the pads P, for example alternately from above and from below, as in Fig. 8 and in side view thereto Fig. 9 shown.
  • the anvil 101 has accordingly alternately arranged areas. Some of the sonotrodes 131 and portions of the anvil 101 are then connected to the feed unit 111, the others fixed. A combination with the tilted sonotrodes 131 of FIG. 6 and / or 7 is also possible.
  • Fig. 10 it is shown how a plurality of sonotrodes 131 of alternating type are arranged offset by 90 ° to each other.
  • Two sonotrodes 131 of the "toroidal sonotrode” type are shown, which rotate about their longitudinal axis during welding.
  • hen hen and end side present two (for example, cam-like) effective surfaces 131 a.
  • These two sonotrodes 131 are perpendicular to the plane of the base plate 12 with longitudinal axis.
  • three sonotrodes 131 of the "linear lambda sonotrode” type are shown, which move linearly during welding perpendicular to their longitudinal axis and radially four (for example, cam-like) Have effective surfaces 131 a, of which, however, only two are in use at the same time (the other two active surfaces serve as a substitute for wear).
  • These three sonotrodes 131 are arranged (with portal support) in a plane parallel to the base plate 12 and move within this plane perpendicular to its longitudinal axis.
  • one of the three sonic probes 131 of the "linear lambda sonotrode” type is arranged between the two sonotrodes 131 of the “torsional sonotrode” type, and this triple group is located between the two other sonotrodes 131 of the "linear” type Lambda sonotrode "arranged.
  • the directions of movement of the sonotrodes 131 are indicated by arrows in FIG.
  • ten spot welds can be generated simultaneously (and at a small distance).
  • the distances between the five sonotrodes 131 are the same, so that five equally spaced pairs of two spot welds at the ten contact points P arise.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Resistance Welding (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne une structure (10) d'un siège de véhicule (1) comprenant au moins deux éléments structurels (12, 14) assemblés par soudage par ultrasons en au moins deux points de contact (P).
EP07801137A 2006-07-18 2007-07-06 Structure d'un siège de véhicule Withdrawn EP2040874A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006033156A DE102006033156A1 (de) 2006-07-18 2006-07-18 Struktur eines Fahrzeugsitzes
PCT/DE2007/001228 WO2008009268A2 (fr) 2006-07-18 2007-07-06 Structure d'un siège de véhicule

Publications (1)

Publication Number Publication Date
EP2040874A2 true EP2040874A2 (fr) 2009-04-01

Family

ID=38542831

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07801137A Withdrawn EP2040874A2 (fr) 2006-07-18 2007-07-06 Structure d'un siège de véhicule

Country Status (5)

Country Link
US (1) US20100141009A1 (fr)
EP (1) EP2040874A2 (fr)
KR (1) KR20090032033A (fr)
DE (3) DE102006033156A1 (fr)
WO (1) WO2008009268A2 (fr)

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US7716797B2 (en) * 2006-12-22 2010-05-18 The Boeing Company Composite seat pan structure for a lightweight aircraft seat assembly
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DE102009002912A1 (de) * 2008-12-03 2010-06-10 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg Fahrzeugsitz mit einer Mehrzahl von Struktur-oder Halteteilen sowie Verfahren zum Herstellen von Struktur-oder Halteteilen eines solchen Fahrzeugsitzes
DE102008055103A1 (de) * 2008-12-22 2010-07-01 Sitech Sitztechnik Gmbh Sitzstruktur
CN102333675B (zh) * 2009-01-30 2015-02-18 江森自控科技公司 座椅结构以及制造座椅结构的方法
DE102009055177A1 (de) * 2009-12-22 2011-06-30 Caradon Stelrad B.V. Verfahren zur Herstellung eines Heizkörpers unter Verwendung eines Ultraschallschweißens sowie danach hergestellter Heizkörper
DE102009059975A1 (de) 2009-12-22 2011-06-30 Sitech Sitztechnik GmbH, 38442 Sitzstruktur
US8550564B1 (en) 2010-04-01 2013-10-08 The Boeing Company Composite seat pan structure for a lightweight aircraft seat assembly
EP2412571B1 (fr) * 2010-07-28 2020-04-15 Adient Luxembourg Holding S.à r.l. Dossier rabattable pour siège de véhicule et procédé de fabrication d'un dossier rabattable pour siège de véhicule
DE102011010056B4 (de) * 2011-02-02 2014-12-31 Magna Steyr Fahrzeugtechnik Ag & Co. Kg Sitz oder Bank für ein Kraftfahrzeug
DE102011051301A1 (de) 2011-06-24 2012-12-27 Technische Universität Chemnitz Verfahren und Vorrichtung zur Herstellung einer Metall-Kunststoff-Verbindung
JP5728349B2 (ja) * 2011-09-21 2015-06-03 日本発條株式会社 車両用シート
US9369589B2 (en) 2012-01-27 2016-06-14 Microsoft Technology Licensing, Llc Updating dynamic data usage plans and statistics
JP5961453B2 (ja) * 2012-06-11 2016-08-02 日本発條株式会社 車両用シート
DE102012019119A1 (de) 2012-07-31 2013-01-17 Keiper Gmbh & Co. Kg Strukturteil für einen Fahrzeugsitz und Fahrzeugsitz
JP6095434B2 (ja) * 2013-03-22 2017-03-15 日本発條株式会社 車両用シート
DE102013213995B4 (de) * 2013-07-17 2015-03-26 Johnson Controls Components Gmbh & Co. Kg Rückenlehne für einen Fahrzeugsitz und Fahrzeugsitz
DE102013021692A1 (de) * 2013-12-19 2015-06-25 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Kraftfahrzeugsitzelement
DE102016208650A1 (de) * 2016-05-19 2017-11-23 Airbus Operations Gmbh Verfahren zur Herstellung eines schienenförmigen Hybridbauteils sowie ein derartiges Hybridbauteil
JP2018199384A (ja) * 2017-05-26 2018-12-20 トヨタ紡織株式会社 乗物用シートのシートフレーム
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US10532421B2 (en) 2017-08-29 2020-01-14 Honda Motor Co., Ltd. UAM resistance spot weld joint transition for multimaterial automotive structures
US10870166B2 (en) 2018-02-01 2020-12-22 Honda Motor Co., Ltd. UAM transition for fusion welding of dissimilar metal parts
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Also Published As

Publication number Publication date
WO2008009268A3 (fr) 2008-04-17
DE102006033156A1 (de) 2008-01-24
DE112007002193A5 (de) 2009-06-18
KR20090032033A (ko) 2009-03-31
WO2008009268A2 (fr) 2008-01-24
US20100141009A1 (en) 2010-06-10
DE202007009701U1 (de) 2007-09-27

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