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WO1999048720A1 - Siege de vehicule automobile equipe d'un systeme pneumatique de stabilisation sous-abdominale - Google Patents

Siege de vehicule automobile equipe d'un systeme pneumatique de stabilisation sous-abdominale Download PDF

Info

Publication number
WO1999048720A1
WO1999048720A1 PCT/CA1999/000216 CA9900216W WO9948720A1 WO 1999048720 A1 WO1999048720 A1 WO 1999048720A1 CA 9900216 W CA9900216 W CA 9900216W WO 9948720 A1 WO9948720 A1 WO 9948720A1
Authority
WO
WIPO (PCT)
Prior art keywords
bladders
assembly
seat
pelvic
set forth
Prior art date
Application number
PCT/CA1999/000216
Other languages
English (en)
Inventor
Mari C. Milosic
Philip W. Hadley
Manoj Srivastava
Original Assignee
Magna Interior Systems Inc.
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 Magna Interior Systems Inc. filed Critical Magna Interior Systems Inc.
Priority to CA002323542A priority Critical patent/CA2323542A1/fr
Priority to AU27090/99A priority patent/AU2709099A/en
Publication of WO1999048720A1 publication Critical patent/WO1999048720A1/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
    • B60N2/665—Lumbar supports using inflatable bladders
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • A47C7/467—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by fluid means

Definitions

  • the subject invention relates to an automotive seat having pneumatic pelvic stabilization.
  • the subject invention relates to an automotive seat which controls pelvis rocking thereby reducing muscular effort for spinal stabilization.
  • Automotive seats have been designed to be contoured to the human shape, with seat backs generally contoured to the spinal shape.
  • United States Patent No. 4,580,837 illustrates a typical rectangular inflatable lumbar support pad.
  • the lumbar support pad is predicated on the assumption that since the spine is curved when a person is standing, this same curve should be assumed while sitting.
  • providing lumbar support does not stabilize the spine and therefore does nothing to reduce fatigue of the spinal muscles.
  • An automotive seat assembly comprises a generally horizontal seat cushion and a generally upright seat back.
  • the seat back includes a lower pelvic support region and opposing sides defining a vertical center line there between and a lower pelvic support region.
  • An inflatable bladder assembly is supported by the seat in the lower pelvic
  • ⁇ 1 - support region and comprises a pair of bladders positioned on opposite sides of the center line wherein each of the bladders is expandable from an uninflated condition with the bladders substantially flat and an inflated condition forming opposing wedge-shaped bladders on each side of the center line adapted to cradle and support the spine of an occupant of the seat along the lower pelvic support region.
  • the inflatable bladder assembly comprises a pair of bladders wherein each of the bladders is expandable from an uninflated condition with the bladders substantially flat and an inflated condition forming opposing wedge-shaped bladders adapted to cradle and support the pelvic area of an occupant seated against the seat back.
  • Figure 1 is a perspective view of a seat, partially broken away, to illustrate the inflatable bladder assembly of the present invention
  • Figure 2 is a schematic view of the inflatable bladder assembly of Figure 1;
  • Figure 3 is a perspective view of one of the inflatable bladders of Figure 1 in an inflated condition;
  • Figure 4 is an anterior view of a human pelvic bone illustrating the preferred positioning of the present invention.
  • Figure 5 is a cross-sectional view taken along line 5-5 of Figure 1..
  • Figure 1 discloses a seat 10 incorporating the inflatable bladder assembly 12 of the present invention.
  • the seat 10 is of conventional
  • -2- construction comprising a seat cushion 14 and a seat back 16.
  • Each of the seat cushion 14 and seat back 16 typically comprise a support frame for supporting a contoured foam pad encased in a seat cover 18 as is commonly known in the art.
  • the inflatable bladder assembly 12 is mounted inside of seat back 16 under the seat cover 18. It should be appreciated that the inflatable bladder assembly 12 may be mounted to the support frame of the seat 10 or alternatively positioned between the seat cover 18 and foam pad or recessed within the foam pad adjacent to the seat cover 18 without varying from the scope of the present invention.
  • the inflatable bladder assembly 12 comprises a pair of opposed wedge-shaped bladders 20, 22 which are in fluid communication via a connecting tube 24. When in an uninflated condition, the bladders 20, 22 are substantially flat. When in an inflated condition, the bladders 20, 22 are wedge-shaped and opposed to each other, as illustrated by the dashed lines in Figure 2.
  • Figure 3 illustrates the inflatable bladder 22 in an inflated condition.
  • each bladder 20, 22 is fabricated from a polymer material.
  • each of the inflated wedge-shaped bladders 20, 22 includes a first end 21 adjacent the center line C-C having a first cross-sectional width and a second end 23 extending away from the center line C-C having a second cross-sectional width larger than the first cross-sectional width wherein each of the inflated bladders 20,22 has a generally wedge-shaped cross-section.
  • the inflatable bladder assembly 12 also comprises a pump 26 in fluid communication with the bladders 20, 22 via hose 28 through a valve 30.
  • a controller 32 is operatively connected to the pump 26 and the valve 30 for controlling the operation of the inflatable bladder assembly 12.
  • Bladders 20, 22 are laterally positioned along opposite sides of the center-line, illustrated by line C-C, of the seat back 16 such that bladders 20, 22 will cradle the spine of the occupant of the seat 10. Further, the bladders 20, 22 are preferably vertically positioned above the upper surface of the seat cushion 14 to provide support for the ilium or upper half of the pelvic bone as shown by the line A- A in Figure 4.
  • the bladders 20, 22 could be separate without the connecting tube 24. However, each bladder 20, 22 would then be independently connected to the pump 26 for inflation.
  • the occupant activates the controller 32.
  • the controller 32 activates the valve 30 to an inflate condition and then activates pump 26.
  • Pump 26 inflates the bladders 20, 22 until each is in a wedge-shape having desired firmness.
  • the opposed wedge-shape presented by the bladders 20, 22 cradles the pelvic bone to control pelvic rocking. Controlling pelvic rocking reduces the muscular effort necessary for spinal stabilization and thus improves occupant comfort by reducing spinal fatigue.
  • valve 30 can optionally be provided with a relief valve to prevent overinflation of the bladders 20, 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

On décrit un ensemble siège (10) de véhicule automobile qui comprend un coussin de siège (14) et un dossier de siège (16). Le dossier de siège présente des bords opposés séparés par une ligne médiane (C-C) et une zone inférieure de soutien sous-abdominal pour soutenir la région pelvienne de l'occupant du siège. Un ensemble vessie gonflable (12) est porté par le dossier de siège et inclut une paire de vessies (20, 22) placées sur des bords opposés de la ligne médiane (C-C) dans la zone de soutien sous-abdominal. Sous l'action d'un moyen hydraulique, les vessies sont gonflées et passent d'un état généralement plat à un état généralement cunéiforme. Un organe de commande met en oeuvre une pompe hydraulique et une soupape pour faire passer les vessies de l'état plat à l'état gonflé. A l'état gonflé, les vessies cunéiformes forment un berceau pour recevoir l'épine dorsale et l'os iliaque de l'occupant du siège, limitant ainsi le balancement pelvien et la fatigue musculaire rachidienne.
PCT/CA1999/000216 1998-03-24 1999-03-18 Siege de vehicule automobile equipe d'un systeme pneumatique de stabilisation sous-abdominale WO1999048720A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002323542A CA2323542A1 (fr) 1998-03-24 1999-03-18 Siege de vehicule automobile equipe d'un systeme pneumatique de stabilisation sous-abdominale
AU27090/99A AU2709099A (en) 1998-03-24 1999-03-18 Automotive seat with pneumatic pelvic stabilization

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7912398P 1998-03-24 1998-03-24
US60/079,123 1998-03-24

Publications (1)

Publication Number Publication Date
WO1999048720A1 true WO1999048720A1 (fr) 1999-09-30

Family

ID=22148584

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1999/000216 WO1999048720A1 (fr) 1998-03-24 1999-03-18 Siege de vehicule automobile equipe d'un systeme pneumatique de stabilisation sous-abdominale

Country Status (3)

Country Link
AU (1) AU2709099A (fr)
CA (1) CA2323542A1 (fr)
WO (1) WO1999048720A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2399285A (en) * 2003-03-06 2004-09-15 Sears Mfg Co Inflatable vehicle seat backrest cushion
DE102005050975B4 (de) * 2005-10-25 2008-05-29 Intier Automotive Seating Systems Gmbh Sitz, insbesondere für Kraftfahrzeuge, sowie ein Verfahren zum Ändern der Kontur eines Sitzes
US7963602B2 (en) * 2008-12-04 2011-06-21 Ford Global Technologies, Llc Vehicle seating system including seat mounted reversible pelvic bolster
EP4082831A1 (fr) * 2021-04-26 2022-11-02 Schukra Gerätebau GmbH Agencement de vessie pneumatique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7562934B2 (en) * 2005-09-08 2009-07-21 Schukra Of North America, Ltd. Apparatus and method for configurable seating

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099236A2 (fr) * 1982-07-07 1984-01-25 John Desmond Gorman Sièges
EP0109572A1 (fr) * 1982-10-25 1984-05-30 International Positioning Systems, Ltd. Dispositif pour supporter et positionner le corps humain et procédé de son ajustement
US4580837A (en) * 1984-04-25 1986-04-08 Car Tec Inc. Vehicle seat
GB2191690A (en) * 1985-07-16 1987-12-23 Okamoto Ind Inc Air support for chairs, chair utilizing the same and method of manufacturing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0099236A2 (fr) * 1982-07-07 1984-01-25 John Desmond Gorman Sièges
EP0109572A1 (fr) * 1982-10-25 1984-05-30 International Positioning Systems, Ltd. Dispositif pour supporter et positionner le corps humain et procédé de son ajustement
US4580837A (en) * 1984-04-25 1986-04-08 Car Tec Inc. Vehicle seat
GB2191690A (en) * 1985-07-16 1987-12-23 Okamoto Ind Inc Air support for chairs, chair utilizing the same and method of manufacturing the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2399285A (en) * 2003-03-06 2004-09-15 Sears Mfg Co Inflatable vehicle seat backrest cushion
DE102005050975B4 (de) * 2005-10-25 2008-05-29 Intier Automotive Seating Systems Gmbh Sitz, insbesondere für Kraftfahrzeuge, sowie ein Verfahren zum Ändern der Kontur eines Sitzes
US7963602B2 (en) * 2008-12-04 2011-06-21 Ford Global Technologies, Llc Vehicle seating system including seat mounted reversible pelvic bolster
EP4082831A1 (fr) * 2021-04-26 2022-11-02 Schukra Gerätebau GmbH Agencement de vessie pneumatique
WO2022228785A1 (fr) * 2021-04-26 2022-11-03 Schukra Berndorf Gmbh Agencement de vessie pneumatique

Also Published As

Publication number Publication date
CA2323542A1 (fr) 1999-09-30
AU2709099A (en) 1999-10-18

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