WO2010058221A1 - Siège de véhicule - Google Patents

Siège de véhicule Download PDF

Info

Publication number
WO2010058221A1
WO2010058221A1 PCT/GB2009/051577 GB2009051577W WO2010058221A1 WO 2010058221 A1 WO2010058221 A1 WO 2010058221A1 GB 2009051577 W GB2009051577 W GB 2009051577W WO 2010058221 A1 WO2010058221 A1 WO 2010058221A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
vehicle
actuator
relative
impact
Prior art date
Application number
PCT/GB2009/051577
Other languages
English (en)
Inventor
Andrew Downie
Paul Sharman
Nicholas Stapleton
Steven Macmanus
Original Assignee
Bentley Motors Limited
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 Bentley Motors Limited filed Critical Bentley Motors Limited
Priority to EP09775258A priority Critical patent/EP2358562A1/fr
Priority to CN2009801481627A priority patent/CN102227336A/zh
Priority to JP2011536952A priority patent/JP2012509222A/ja
Priority to US13/129,911 priority patent/US20110221246A1/en
Publication of WO2010058221A1 publication Critical patent/WO2010058221A1/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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
    • B60N2/42754—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion
    • B60N2/42763—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion with anti-submarining systems
    • 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
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
    • B60N2/18—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other
    • B60N2/1807—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic
    • B60N2/1842—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable the front or the rear portion of the seat being adjustable, e.g. independently of each other characterised by the cinematic pivoting about an axis located in the rear

Definitions

  • the present invention relates to a vehicle seat, and particularly but not exclusively to an automotive vehicle seat.
  • Automotive vehicle seats typically provide for a whole range of adjustments aimed at enhancing occupant comfort and safety. These adjustments typically include forwards and backwards movement to enable the position of the seat on the longitudinal axis of a vehicle to be adjusted, upward and downward movement to enable the position of the seat on the vertical axis of a vehicle to be adjusted and pivotal movement of a seat squab part relative to the cushion part to enable rake of the squab relative to the seat to be adjusted.
  • Embodiments of the present invention have been made in consideration of these problems.
  • a vehicle seat comprising a means arranged to positively displace a part of the seat relative to either another part of the seat and/or a vehicle on which the seat is mounted in the event that predetermined conditions corresponding to a vehicle impact are encountered.
  • a method of counteracting the effects of a vehicle impact on the vehicle seat comprising positively displacing a part of the vehicle seat relative to either another part of the seat and/or a vehicle in which the seat is mounted when certain predetermined conditions corresponding to a vehicle impact are encountered.
  • Introducing a positive displacement to at least part of a seat can reduce or eliminate net movement of that or another part of the seat relative to a vehicle in which it is mounted. Consequently movement of a seat occupant is also reduced, which in turn helps to reduce the risk of injury resulting from impact of the occupant with the vehicle structure.
  • said positive displacement is arranged to at least part offset movement of the seat due to forces generated by vehicle impact conditions.
  • the means arranged to positively displace may comprise an actuator, such as a gas operated piston and cylinder arrangement which could be driven by an explosive charge or some other suitable gas generator.
  • the actuator may be mounted between components of the seat and/or between the seat and a vehicle on which it is mounted.
  • the actuator may be arranged to operate an adjustment mechanism arranged to adjust the relative position of parts of the seat, and/or of the seat relative to a vehicle in which it is mounted.
  • the adjustment mechanism may comprise two pivotally connected members, in which case the actuator may be arranged to move the members pivotally relative to one another.
  • a locking means may be provided to lock the seat and/or components of the seat in a normal and/or displaced state.
  • the locking means may comprise cooperating components and may include a ratchet.
  • the actuator may be triggered by an electronic control unit arranged to trigger the actuator in dependence upon vehicle impact conditions as sensed by one or more vehicle impact sensors. In this case it is preferable that the actuator is triggered within at least 10ms (milli seconds) of the beginning of an impact event.
  • the seat comprises a cushion and a squab and the means is arranged to displace the front part of the cushion upwardly relative to a vehicle on which the seat is mounted. This causes the seat to pivot about the rear of the cushion and causes the seat squab to move backwards (for a front facing seat) relative to the vehicle, counteracting the tendency of the squab to move forwards due to compliance in the seat structure under frontal impact conditions.
  • Figure 1 shows a diagrammatic perspective view of a vehicle seat according to the invention
  • Figure 2 shows a partial cut-away left side view of the seat of Figure 1 in a normal position
  • Figure 3 shows the view of Figure 2 following deployment of the actuator to raise the front of the seat cushion
  • Figure 4 shows an enlarged and simplified view of the actuator and associated components of the seat of Figure 2 generally in box 15 of that Figure;
  • Figure 5 shows the view of Figure 4 without the actuator;
  • Figure 6 shows the view of Figure 4 with the actuator in an initially deployed state
  • Figure 7 shows the view of Figure 6 without the actuator
  • Figure 8 shows the view of Figure 4 with the actuator in a partially deployed state
  • Figure 9 shows the view of Figure 8 without the actuator
  • Figure 10 shows the view of Figure 4 with the actuator in a fully deployed state shown in Figure 3; and Figure 1 1 shows the view of Figure 10 without the actuator.
  • an automotive vehicle seat comprises a cushion part 1 and a squab part 2, each having respective metal frames 3, 4 supporting upholstery 5.
  • the cushion 1 and squab 2 are pivotally connected together by a pivot 6 enabling the rake of the squab relative to the cushion 1 to be adjusted.
  • a mechanism is provided to one side of the seat for adjustment of the rake of the squab 2.
  • the cushion frame 3 is mounted by way of a height adjustment mechanism, generally 7, to a moveable slide 8.
  • the moveable slide 8 is slidably mounted on a fixed slide 9 which is in turn fixed to the vehicle floor.
  • the moveable and fixed slide arrangement allows fore and aft movement of the seat relative to the vehicle.
  • the height adjustment mechanism provides for heightwise movement of the seat relative to the floor and roof of the vehicle.
  • the seat includes a seat belt comprising a webbing strap 11.
  • the seat belt is shown in a fastened state in Figure 1, although no occupant is shown in the seat.
  • the webbing is stored on a conventional reel housed in the seat squab 2 and pays out of an opening 12 towards the top of the seat squab 2 and can be drawn in a diagonal fashion across an occupant of the seat so that a fitting 13 slidably mounted on the webbing 11 can be engaged into a latch fastened to an anchor point towards the bottom of the squab and on the opposite side of the squab to the aperture 12 through which the webbing strap 11 is paid out.
  • the webbing strap 11 continues from the fastening to an anchor point 14 on the cushion frame 3.
  • the reel is of the 'inertia' type and arranged to lock under impact conditions to prevent further retraction of the seat belt from the reel and thus restrain movement of the seat occupant.
  • the front mounting of the cushion frame 3 to the movable rail 8 comprises a lower strut member 17 and an upper strut member 18.
  • the lower strut member 17 is pivotally mounted to the movable slide 8 by pivot 16 at one end and pivotally mounted to the upper strut member at its opposite end by pivot 19.
  • the upper strut member is in turn connected to the cushion frame 3 by pivot 20 and to a locking member 21 by pivot 22. Pivots 19,20 and 22 form the corners of a broadly equilateral triangle.
  • the actuator comprises a cylinder 25 and piston arrangement, the piston (not shown) being connected to a rod 26.
  • the cylinder contains an explosive charge which on detonation drives the piston along the cylinder 25 urging the rod 26 out of the cylinder 25.
  • a second locking member 27 is Also mounted to pivot 22 on the upper strut member 18.
  • the second locking member is elongate and generally curved. It extends either side of the pivot 22.
  • a return spring 28 mounted to the upper strut member bears down on the second locking member 27, urging the opposite end of the second locking member 27 upwards, the upper edge of which has a toothed profile.
  • First 30 and second 31 locking members are also mounted to the lower strut member 17.
  • the lower edge of the first locking member 30 defines an upwardly extending slot and the lower edge of the second locking member 31 defines a toothed profile.
  • the locking member 21 of the upper strut 18 and the first locking member 30 of the lower strut 17 are arranged to engage with each other.
  • a vehicle on which the seat is provided is equipped with one or more sensors able to determine if the vehicle is involved in an impact.
  • a control unit is operative to deploy one or more safety features.
  • detection of the onset of a frontal impact causes the charge in the actuator 24 to be fired, causing the rod 26 to be urged out of the cylinder 25.
  • the actuator is preferably deployed within lO ⁇ s of the beginning of a crash event.
  • the actuator When the actuator is deployed it operates to urge the two points (pivots 16 and 23) at which it is mounted apart. Initially this causes the locking member 21 to rotate relative to the upper strut member 18, disengaging the tab of the locking member from the slot of the first locking member of the lower strut 17 as shown in Figures 6 and 7 allowing for relative movement of the two struts.
  • the locking member 21 rotates until pivot 22 lies on a straight line extending from pivot 16 to pivot 23.
  • Continued movement of the actuator 24 urges pivots 16 and 23 apart causing the upper 18 and lower 17 strut members to move relative to each other, from the position shown in Figures 2,4 and 5, through the position shown in Figures 6 and 7 and into the position shown in Figures 8 and 9.
  • This has the effect of displacing the front of the seat cushion 1 upwardly away from the movable rail 9, pivoting the seat about its rear mounting causing the seat squab 2 to move backwards relative to the vehicle floor. This is seen by comparing Figures 2 and 3, in Figure 3 the seat squab is displaced from the line 32.
  • the two locking means act as a ratchet preventing return of the seat to its original position.
  • the upper strut member 18 includes a stop 33 which abuts the lower strut member when the two strut members reach relative positions at which the pivots 16 and 20 are at substantially their maximum displacement from each other preventing relative onward movement of the two members is prevented.
  • the members become locked in the position shown in Figures 3,10 and 1 1, movement in one direction being prevented by the stop 33 and movement in the other by the second locking members 27 and 31.
  • the invention provides for a vehicle seat which is locked in a normal operating position until onset of an impact causes operation of an actuator. Operation of the single actuator first unlocks the seat from its normal operating position and then causes the front of the seat to be displaced upwards relative to a vehicle floor in which it is mounted to a second position in which the seat is then also locked. Displacement of the front of the seat upwards causes the seat to pivot about its rear mounting causing the seat squab to move backwards relative to the vehicle in which it is mounted. This will at least partially compensate for forward movement of the seat as a result of compliance in the seat structure under the collision conditions and therefore reduce movement and the potential for injury of a seat occupant as a result of the impact.

Landscapes

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

Abstract

L'invention porte sur un siège de véhicule comportant un moyen (24) disposé pour déplacer positivement une partie du siège par rapport soit à une autre partie du siège et/ou à un véhicule dans lequel le siège est monté, dans le cas de conditions prédéterminées correspondant à un impact du véhicule. Le siège peut être déplacé par un mécanisme de déclenchement d'actionneur comportant une unité de commande électronique en fonction des conditions détectées par un ou plusieurs capteurs d'impact de véhicule.
PCT/GB2009/051577 2008-11-20 2009-11-20 Siège de véhicule WO2010058221A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP09775258A EP2358562A1 (fr) 2008-11-20 2009-11-20 Siège de véhicule
CN2009801481627A CN102227336A (zh) 2008-11-20 2009-11-20 车辆座椅
JP2011536952A JP2012509222A (ja) 2008-11-20 2009-11-20 車両用シート
US13/129,911 US20110221246A1 (en) 2008-11-20 2009-11-20 Vehicle seat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0821189.8A GB0821189D0 (en) 2008-11-20 2008-11-20 Vehicle seat
GB0821189.8 2008-11-20

Publications (1)

Publication Number Publication Date
WO2010058221A1 true WO2010058221A1 (fr) 2010-05-27

Family

ID=40194920

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2009/051577 WO2010058221A1 (fr) 2008-11-20 2009-11-20 Siège de véhicule

Country Status (6)

Country Link
US (1) US20110221246A1 (fr)
EP (1) EP2358562A1 (fr)
JP (1) JP2012509222A (fr)
CN (1) CN102227336A (fr)
GB (1) GB0821189D0 (fr)
WO (1) WO2010058221A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8403395B2 (en) * 2007-10-20 2013-03-26 Bentley Motors Limited Vehicle seat
DE102012020269B4 (de) * 2012-07-31 2021-01-07 Adient Luxembourg Holding S.À R.L. Verriegelungsvorrichtung für einen Fahrzeugsitz und Fahrzeugsitz
CN104192030B (zh) * 2014-07-25 2018-05-01 郑州宇通客车股份有限公司 一种可翻转安全座椅及翻转控制方法
DE102017103315A1 (de) * 2017-02-17 2018-08-23 Ka Group Ag Pneumatischer Linearantrieb für ein Fahrzeugbauteil
DE102018110683B4 (de) * 2017-12-21 2020-08-27 Adient Engineering and IP GmbH Crashsperreneinheit, insbesondere für einen fahrzeugsitz, sowie fahrzeugsitz

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3631881A1 (de) * 1986-09-19 1988-04-07 Daimler Benz Ag Rueckhaltevorrichtung fuer einen fahrzeuginsassen
DE3841688A1 (de) * 1988-12-10 1990-06-21 Daimler Benz Ag Kraftwagensitz mit einem dem sitzkissen zugeordneten, etwa u-foermigen buegel
DE19707998A1 (de) 1997-02-27 1998-09-17 Inova Gmbh Tech Entwicklungen Kraftfahrzeugsitz
DE102004020798A1 (de) * 2004-04-28 2005-11-24 Autoliv Development Ab Fahrzeugsitz mit wenigstens einem Elektromotor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6322140B1 (en) * 1994-06-27 2001-11-27 Indiana Mills & Manufacturing, Inc. Seat and occupant restraint system
GB2309889B (en) * 1996-02-06 1999-05-26 Autoliv Dev Improvements in or relating to a vehicle seat
SE521546C2 (sv) * 1998-06-09 2003-11-11 Volvo Personvagnar Ab Stolstruktur för fordon
US6142564A (en) * 2000-03-10 2000-11-07 Trw Inc. Rearward moving seat with breakaway latch
GB2374280B (en) * 2001-03-09 2003-02-26 Visteon Global Tech Inc Seating system for a vehicle having a deceleration sensor
DE10341328B4 (de) * 2003-09-08 2005-09-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung und zugehöriges Verfahren zum Insassenschutz in einem Fahrzeug
GB2409255B (en) * 2003-12-19 2006-05-31 Lear Corp Inc A vehicle seat adjustment system including an occupant protection adjustment

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3631881A1 (de) * 1986-09-19 1988-04-07 Daimler Benz Ag Rueckhaltevorrichtung fuer einen fahrzeuginsassen
DE3841688A1 (de) * 1988-12-10 1990-06-21 Daimler Benz Ag Kraftwagensitz mit einem dem sitzkissen zugeordneten, etwa u-foermigen buegel
DE19707998A1 (de) 1997-02-27 1998-09-17 Inova Gmbh Tech Entwicklungen Kraftfahrzeugsitz
DE102004020798A1 (de) * 2004-04-28 2005-11-24 Autoliv Development Ab Fahrzeugsitz mit wenigstens einem Elektromotor

Also Published As

Publication number Publication date
EP2358562A1 (fr) 2011-08-24
JP2012509222A (ja) 2012-04-19
CN102227336A (zh) 2011-10-26
GB0821189D0 (en) 2008-12-24
US20110221246A1 (en) 2011-09-15

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