WO2002092385A1 - Actionneur mecanique pour unite lombaire - Google Patents

Actionneur mecanique pour unite lombaire Download PDF

Info

Publication number
WO2002092385A1
WO2002092385A1 PCT/US2002/004709 US0204709W WO02092385A1 WO 2002092385 A1 WO2002092385 A1 WO 2002092385A1 US 0204709 W US0204709 W US 0204709W WO 02092385 A1 WO02092385 A1 WO 02092385A1
Authority
WO
WIPO (PCT)
Prior art keywords
panel
support device
lumbar support
cable
set forth
Prior art date
Application number
PCT/US2002/004709
Other languages
English (en)
Inventor
Horia Blendea
Jintao Liu
Yang Cao
Ed Dornan
Joseph Benson
Original Assignee
Schukra Of North America, Ltd.
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
Priority claimed from US09/855,330 external-priority patent/US6631951B2/en
Application filed by Schukra Of North America, Ltd. filed Critical Schukra Of North America, Ltd.
Priority to JP2002589298A priority Critical patent/JP4125135B2/ja
Priority to DE10296371T priority patent/DE10296371T5/de
Publication of WO2002092385A1 publication Critical patent/WO2002092385A1/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
    • B60N2/64—Back-rests or cushions
    • B60N2/66—Lumbar supports
    • B60N2/667—Lumbar supports having flexible support member bowed by applied forces
    • B60N2/6671—Lumbar supports having flexible support member bowed by applied forces with cable actuators
    • 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
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • 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
    • B60N2/0224—Non-manual adjustments, e.g. with electrical operation
    • B60N2/02246—Electric motors therefor
    • B60N2/02253—Electric motors therefor characterised by the transmission between the electric motor and the seat or seat parts
    • 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
    • B60N2/66—Lumbar supports
    • B60N2/666—Lumbar supports vertically 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
    • B60N2/64—Back-rests or cushions
    • B60N2/66—Lumbar supports
    • B60N2/667—Lumbar supports having flexible support member bowed by applied forces
    • B60N2/6673—Lumbar supports having flexible support member bowed by applied forces with motor driven adjustments

Definitions

  • the present invention relates to a mechanical lumbar support for a seat back.
  • the present invention relates to a mechanical lumbar support intended
  • variable lumbar support devices presently being used have included cables and pulley
  • This invention relates to a powered lumbar support device intended for use
  • the device in an automobile seat back.
  • the device includes a panel that has a first end and a second
  • a first gear box has an arching rack
  • a first cable connected to one of
  • a first motor engages the arching pinion for moving the first cable and changing the distance between the first end and the second
  • a complaint spring is connected to one of the ends of the panel and to the first
  • the compliant spring includes a contracting spring force that is greater than the
  • the compliant spring stretches increasing the distance between the first end and the second
  • the first gear box is powered by a small electric motor eliminating the need
  • the first gear box is packaged into a compact lumbar
  • Figure 1 is a perspective cut away view, showing a seat frame incorporating
  • Figure 2 is a environmental cut away side view, showing a seat with foam and padding, incorporating the lumbar support device with the control module,
  • Figure 3 is a schematic front view of the lumbar support device
  • Figure 4 is a schematic front view of a prebent basket mounted to the lumbar
  • Figure 5 is an expanded perspective view of the compression spring engaging
  • Figure 6 is a front view of the first control module showing the electric motor and associated gears
  • Figure 7 is a perspective cut away view, showing a seat frame incorporating the
  • Figure 8 is a perspective view of a second embodiment of the lumbar support device
  • Figure 9 is a front view of the second embodiment of the lumbar support device.
  • Figure 10 is perspective view of a third embodiment of the lumbar support
  • Figure 1 1 is front view of the third embodiment of the lumbar support device
  • Figure 12 is a perspective view of a fourth embodiment of the lumbar suDDort
  • Figure 13 is a perspective view of a gear box as used in the second, third, and
  • an automotive seat frame is generally shown at 10.
  • the frame 10 includes a seat section 12 and back section 14.
  • Figure 2 shows the frame 10 concealed by a foam barrier 18 covered with fabric 20 as is known in the art of automotive seating.
  • a power lumbar device generally shown in Figure 1 at 22, provides adjustable back support in the fore/aft direction of the automobile (not shown).
  • the lumbar device is not limited to.
  • control module 24 that adjusts the lumbar device 22 in the fore/aft direction.
  • the back section 14 of the frame 10 includes a structural ring 32 that defines the perimeter of the back section 14 as is known in the art of automotive seat construction.
  • a support element 34 extends between vertical appendages 36 of the structural ring 32.
  • a cross member 38 also extends between the vertical appendage 36 and is positioned
  • a lumbar frame 40 extends downwardly from the
  • the lumbar frame 40 comprises a single wire that is generally U-shaped and supports the entirety of the lumbar device 22. A pair of hooks 41 engages tabs 42
  • a clasp 43 is formed in a lower section of the lumbar frame 40 and clasps the cross member 38.
  • the lumbar device 22 is easily
  • the lumbar device 22 includes a basket comprising a resilient panel 44 arched
  • the resilient panel 44 includes an first flange 46 and a second flange
  • the first flange 46 includes a first upper notch 50 and a second upper notch 52.
  • lower flange 48 includes a first lower notch 50' that aligns with the first upper notch 50
  • the lumbar frame 40 slideably engages the upper notches 50, 52.
  • the lumbar frame 40 includes a pair of protuberances 53 that engage the lower notches 50', 52 preventing the second flange
  • Each notch 50, 50', 52, 52' includes an insert
  • the resilient panel 44 includes vertically oriented ribs 54 for stiffening the
  • Compliant springs 56 are shown in Figures 1 , 2, and 3 positioned on opposite sides of the module 24 and connect to the first and second flanges 46, 48 of the resilient
  • the compliant springs 56 have hooks 58 disposed at each end that engage an
  • springs 56 provide a contracting force to the resilient panel 44 further biasing the panel.
  • the springs 56 reduce the force required from the first control module 24 to flex the resilient panel 44 in the fore direction.
  • resilient panel 44 can vary to meet different force requirements.
  • the springs 56' include reverse hooks 58' disposed at each end.
  • the reverse hooks 58' engage the apertures 60 in an opposite manner as the hooks 58 allowing the compression spring 56' to engage the resilient panel
  • control module 24 is slideably connected to the lumbar frame 40 by at least one backing plate 62, 63, 64.
  • a backing plate 62, a middle backing plate 63, and a lower backing plate 64 are each
  • compliant spring 65 affixes the control module 24 to the second flange 48 preventing the control module 24 from sliding upon the lumbar frame 40 unless the contracting spring
  • the module 24 includes a drive mechanism, which is shown generally at 66
  • the mechanism 66 includes an electric motor 70 fully enclosed in a housing
  • the motor 70 includes a drive shaft 72 having a drive gear 74 disposed at the end
  • the drive gear 74 is in running engagement with a first spur gear 76.
  • spur gear 76 is affixed to a second spur gear 78 having a narrower diameter than that of
  • the first spur gear 76 is oriented to pivot upon
  • the second spur gear 78 is in running engagement with a third spur gear 80.
  • the third spur gear 80 is affixed to a worm 82.
  • the worm 82 are oriented to pivot upon the same axis.
  • the worm 82 drives a worm gear 84, which in turn drives a pinion 86.
  • the pinion 86 engages teeth 88 disposed upon the worm gear
  • the pinion 86 is wider than
  • the worm gear 84 so that it can translate rotational movement from the worm gear 84 to a rack 89 by engaging the rack 89.
  • the pinion 86 drives the rack 89 in a linear direction
  • the motor 70 drives the rack 89
  • the rack 89 is formed into a first extending member 90.
  • the extending member 90 projects from the control module 24.
  • a talon 92 engages a slot
  • the first control module 24 is affixed to the second flange 48 of the resilient panel 44 by the compliant spring 65. By driving the first extending
  • the force generated by the motor 70 is not capable of overcoming the contracting spring force of the compliant spring 65. However, the combination of forces generated by the spring 56 and the motor 70 provide enough counter force to the
  • This provides the panel 44 with a compliant feature that increase the level of comfort to the seat occupant by softening the lumbar support provided by the resilient panel 44;
  • the frame 110 is generally shown at 1 10.
  • the frame 110 includes a seat section 1 12 and back
  • the back section 114 has a ring 132 defining the perimeter of the back
  • a second embodiment of a powered lumbar support device 122 has a
  • lumbar frame 140 with a plurality of hooks 141 at one end and a clasp 143 at the other.
  • the lumbar frame 140 is fixedly attached to the ring 132 by the hooks 141 and the clasp 143.
  • a panel 144 is slideably disposed generally upon the vertical members 139 of the
  • the panel 144 has a first end 146 and a second end 148 moveable relative to one another for forming an arch in the panel 144.
  • a first gear box 116 is attached to the lumbar frame
  • the first gear box has an arching rack 118 and an arching pinion 120.
  • the arching rack 118 includes a first arching end 124 and a
  • Each of the first and the second arching ends 124, 126 are adapted to allow the attachment of cables thereto. More specifically, at least one
  • connector 125 is disposed in each of the first and second arching ends 124, 126 for
  • the connector 125 is represented as a slot having a
  • the connector 125 is not
  • arching ends 124, 126 and the connector is an aperture for receiving the end of the cable.
  • a first motor 130 operatively engages the first gear ox 116 with a worm 134 to transfer linear movement to the arching rack 118.
  • the worm 134 is in driving engagement with the arching pinion 120 enabling the arching pinion 120
  • the first motor 130 is shown
  • a memory device 176 is disposed within the first gear box enabling
  • memory device 176 may be any known device capable of determining the location of the rack 1 18 and enabling the position of the rack 118 to be stored for returning the rack 118
  • one such device is a memory
  • the lumbar support device 122 further includes a compliant spring 136
  • compliant spring 136 transfers movement from the first cable 128 to one of the ends 146,
  • the compliant spring 136 has an expansion force stronger than the
  • a lever 138 operably connects the first cable
  • a support member 166 is connected to one of the panel ends 146, 148 with a pin 165 inserted through opposing tabs 167 allowing pivotal
  • the lever 138 is pivotally
  • the compliant spring 136 allows the arch to flex when an outside force, such as
  • first motor 130 is not capable of overcoming the contracting spring force of the compliant spring 136. However, the combination of forces generated by the spring 136 and the
  • the lumbar support device 122 may also include a second gear box 150
  • the moving rack 152 has a first moving end 156 and a second moving end 158 with each of the moving ends having at least one connector
  • a second motor 160 having a worm 134 extending from the second
  • the motor 160 directly engages the second gear box 150.
  • the second motor 160 and the second gear box 150 operate in the same manner as the first motor 130 and the first gear box 1 16.
  • a second cable 164 is connected between one of the connectors of the moving rack 152 and the support member 166.
  • the second cable 1 4 transfers linear movement
  • the lumbar support 122 in the seat back in a generally vertical direction to accommodate
  • At least one shifting spring 168 is attached between one of the ends 146, 148
  • the shifting spring 168 may be replaced by a third cable 170.
  • third cable 170 is connected to the opposite end of the moving rack 152 than the second
  • the second gear box 150 and the second motor 160 actuate first and second bolsters 172, 174, as shown in Figure 12. In this
  • the second cable 164 is connected to the first bolster 172.
  • the second cable 164 is connected to the first bolster 172.
  • Movement of the moving rack 152 therefore actuates the first bolster
  • the third cable 170 is connected to the same end of the moving rack 152 as the second cable 164 and actuates the second bolster 174. Therefore the moving rack 152

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention porte sur un dispositif de support lombaire mécanique (122) comprenant un panneau (144) pourvu d'une première extrémité (146) et d'une seconde extrémité (148). Le panneau est sollicité dans un sens avant de façon à former un arc dans un dossier de siège. Un cadre lombaire (140) s'étend vers le bas à partir d'un élément support (134) destiné à supporter coulissant le panneau (144). Un premier câble (128) est fixé à l'une des extrémités du panneau (144) et à une crémaillère en arc d'un premier boîtier d'engrenages (116). Le déplacement linéaire de la crémaillère en arc transfère le mouvement vers l'une des extrémités de façon à modifier la distance entre les extrémités par déplacement du premier câble. Le dispositif de support lombaire mécanique (122) comprend un second boîtier d'engrenages (150) pourvu d'une crémaillère mobile et d'un pignon mobile qui assurent le décalage vertical du dispositif de support lombaire. Le second boîtier d'engrenages (150) peut également être utilisé pour actionner des accessoires de support additionnels tels que des montants latéraux mobiles.
PCT/US2002/004709 2001-05-15 2002-02-15 Actionneur mecanique pour unite lombaire WO2002092385A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2002589298A JP4125135B2 (ja) 2001-05-15 2002-02-15 ランバユニット用の電動式アクチュエータ
DE10296371T DE10296371T5 (de) 2001-05-15 2002-02-15 Betätigungsvorrichtung für eine Lordoseeinheit mit Motorantrieb

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/855,330 US6631951B2 (en) 2001-02-21 2001-05-15 Powered actuator for lumbar unit
US09/855,330 2001-05-15

Publications (1)

Publication Number Publication Date
WO2002092385A1 true WO2002092385A1 (fr) 2002-11-21

Family

ID=25320967

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/004709 WO2002092385A1 (fr) 2001-05-15 2002-02-15 Actionneur mecanique pour unite lombaire

Country Status (3)

Country Link
JP (1) JP4125135B2 (fr)
DE (1) DE10296371T5 (fr)
WO (1) WO2002092385A1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10345400A1 (de) * 2003-09-30 2005-05-12 Schukra Geraetebau Ag Berndorf Aktuator
DE202004002569U1 (de) * 2004-02-19 2005-07-07 Schwarzbich, Jörg Lordosenstütze
EP1556245A2 (fr) * 2002-11-01 2005-07-27 L & P Property Management Company Dispositif de massage et procede de soutien lombaire
EP1605797A2 (fr) * 2003-03-21 2005-12-21 L & P Property Management Company Appareil de surface d'actionneur d'embrayage et procede associe
WO2006000351A1 (fr) * 2004-06-23 2006-01-05 Recaro Aircraft Seating Gmbh & Co. Kg Siege pour passager, notamment siege pour passager d'avion
WO2007062792A2 (fr) * 2005-12-01 2007-06-07 Schukra Gerätebau AG Dispositif et procede de reglage d'un composant de siege et siege
CN102256512A (zh) * 2008-12-18 2011-11-23 La-Z-博伊有限公司 用于家具构件的腰部支撑系统
CN103661047A (zh) * 2012-09-13 2014-03-26 莱格特普莱特加拿大公司 腰部支撑系统
EP2835280A1 (fr) * 2013-08-07 2015-02-11 Schukra Gerätebau GmbH Actionneur de libération de verrou et procédé d'actionnement d'un verrou de siège
US10065530B2 (en) 2013-03-15 2018-09-04 Leggett & Platt Canada Co. System and method for sensorless remote release actuating system
US11285855B2 (en) 2020-02-07 2022-03-29 Hyundai Motor Company Side bolster adjustment apparatus, side bolster adjustment system, and side bolster adjustment method for vehicle seat

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004001963B4 (de) * 2004-01-13 2006-04-20 Johnson Controls Gmbh Sitz, insbesondere für ein Kraftfahrzeug
DE102004027900B4 (de) * 2004-06-09 2006-03-30 Otto Zapf Fahrzeugsitz
DE102007013341A1 (de) * 2007-03-02 2008-09-04 L & P Swiss Holding Company Befestigungsvorrichtung und Verfahren zum Anbringen einer Lordosenstützvorrichtung an einem Sitzrahmen sowie entsprechende Lordosenstützvorrichtung
DE102007060075A1 (de) * 2007-12-13 2009-06-18 Volkswagen Ag Konturadaptiver Fahrzeugsitz
MX2010009648A (es) * 2008-03-12 2010-11-09 Johnson Controls Tech Co Asiento de vehiculo.
DE102011080520A1 (de) 2011-08-05 2013-02-07 Brose Fahrzeugteile Gmbh & Co. Kg, Coburg Lordosenstütze
KR101425887B1 (ko) 2013-07-04 2014-08-05 현대다이모스(주) 차량용 시트백의 사이드 볼스터 장치
JP6354540B2 (ja) * 2014-11-26 2018-07-11 トヨタ紡織株式会社 リクライニング調節装置及び車両用シート装置
JP2017116070A (ja) 2015-12-25 2017-06-29 アイシン精機株式会社 車両用運動変換装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4314325A1 (de) * 1993-04-30 1994-11-10 Ameu Management Corp Vorrichtung für die Höhenverstellung und/oder Wölbungsverstellung eines biegeelastischen Stützelementes einer Rückenlehne eines Sitzes
US5567011A (en) 1990-03-09 1996-10-22 Sessini; Lorenza Cushion for anatomical support, especially for the lumbar and cervical regions, to fit onto seat backs
US5609394A (en) * 1996-02-23 1997-03-11 Ligon Brothers Manufacturing Company Four-way lumbar support
WO1998041418A1 (fr) * 1997-03-17 1998-09-24 Schukra Of North America Ltd. Procede et dispositif de reglage de la position d'un element de maintien d'un siege
DE19826597A1 (de) * 1998-06-15 1999-12-23 Fico Cables Sa Lordosenstütze

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5567011A (en) 1990-03-09 1996-10-22 Sessini; Lorenza Cushion for anatomical support, especially for the lumbar and cervical regions, to fit onto seat backs
DE4314325A1 (de) * 1993-04-30 1994-11-10 Ameu Management Corp Vorrichtung für die Höhenverstellung und/oder Wölbungsverstellung eines biegeelastischen Stützelementes einer Rückenlehne eines Sitzes
US5609394A (en) * 1996-02-23 1997-03-11 Ligon Brothers Manufacturing Company Four-way lumbar support
WO1998041418A1 (fr) * 1997-03-17 1998-09-24 Schukra Of North America Ltd. Procede et dispositif de reglage de la position d'un element de maintien d'un siege
DE19826597A1 (de) * 1998-06-15 1999-12-23 Fico Cables Sa Lordosenstütze

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1556245A2 (fr) * 2002-11-01 2005-07-27 L & P Property Management Company Dispositif de massage et procede de soutien lombaire
EP1556245A4 (fr) * 2002-11-01 2009-03-25 L & P Property Management Co Dispositif de massage et procede de soutien lombaire
EP1605797A4 (fr) * 2003-03-21 2007-08-29 L & P Property Management Co Appareil de surface d'actionneur d'embrayage et procede associe
EP1605797A2 (fr) * 2003-03-21 2005-12-21 L & P Property Management Company Appareil de surface d'actionneur d'embrayage et procede associe
DE10345400A1 (de) * 2003-09-30 2005-05-12 Schukra Geraetebau Ag Berndorf Aktuator
DE202004002569U1 (de) * 2004-02-19 2005-07-07 Schwarzbich, Jörg Lordosenstütze
WO2006000351A1 (fr) * 2004-06-23 2006-01-05 Recaro Aircraft Seating Gmbh & Co. Kg Siege pour passager, notamment siege pour passager d'avion
WO2007062792A3 (fr) * 2005-12-01 2007-07-19 Schukra Geraetebau Ag Dispositif et procede de reglage d'un composant de siege et siege
WO2007062792A2 (fr) * 2005-12-01 2007-06-07 Schukra Gerätebau AG Dispositif et procede de reglage d'un composant de siege et siege
CN102256512A (zh) * 2008-12-18 2011-11-23 La-Z-博伊有限公司 用于家具构件的腰部支撑系统
CN102256512B (zh) * 2008-12-18 2014-05-14 拉兹男孩联合公司 用于家具构件的腰部支撑系统
CN103661047A (zh) * 2012-09-13 2014-03-26 莱格特普莱特加拿大公司 腰部支撑系统
US10065530B2 (en) 2013-03-15 2018-09-04 Leggett & Platt Canada Co. System and method for sensorless remote release actuating system
EP2835280A1 (fr) * 2013-08-07 2015-02-11 Schukra Gerätebau GmbH Actionneur de libération de verrou et procédé d'actionnement d'un verrou de siège
WO2015018893A1 (fr) * 2013-08-07 2015-02-12 Schukra Gerätebau Gmbh Actionneur de déclenchement de verrouillage et procédé d'actionnement d'un verrouillage de siège
US11285855B2 (en) 2020-02-07 2022-03-29 Hyundai Motor Company Side bolster adjustment apparatus, side bolster adjustment system, and side bolster adjustment method for vehicle seat

Also Published As

Publication number Publication date
JP4125135B2 (ja) 2008-07-30
DE10296371T5 (de) 2004-04-22
JP2004525736A (ja) 2004-08-26

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