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WO2006034828A1 - Siege de vehicule - Google Patents

Siege de vehicule Download PDF

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Publication number
WO2006034828A1
WO2006034828A1 PCT/EP2005/010353 EP2005010353W WO2006034828A1 WO 2006034828 A1 WO2006034828 A1 WO 2006034828A1 EP 2005010353 W EP2005010353 W EP 2005010353W WO 2006034828 A1 WO2006034828 A1 WO 2006034828A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat according
seat
crash
retaining element
rotary drive
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.)
Ceased
Application number
PCT/EP2005/010353
Other languages
German (de)
English (en)
Inventor
Gavriel Shafry
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.)
ACTS GmbH and Co KG
Original Assignee
ACTS Advanced Car Technology Systems GmbH and Co KG
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 ACTS Advanced Car Technology Systems GmbH and Co KG filed Critical ACTS Advanced Car Technology Systems GmbH and Co KG
Publication of WO2006034828A1 publication Critical patent/WO2006034828A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B60N2/24—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
    • B60N2/24—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
    • B60N2/4207—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 characterised by the direction of the g-forces
    • B60N2/4214—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 characterised by the direction of the g-forces longitudinal
    • B60N2/4221—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 characterised by the direction of the g-forces longitudinal due to impact coming from the front
    • 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
    • B60N2/42772—Seats or parts thereof displaced during a crash characterised by the triggering system
    • B60N2/4279—Seats or parts thereof displaced during a crash characterised by the triggering system electric or electronic triggering

Definitions

  • the invention relates to a seat for a vehicle with a crash or pre-crash sensor system, comprising a seat part with a padding, the Nach ⁇ giebtechnik controlled in a triggering of the crash or pre-crash sensor below a leg rest area of the padding can be reduced ,
  • Vehicle seats and in particular motor vehicle seats usually comprise a seat part and a backrest and are normally equipped with a three-point safety article intended to restrain a vehicle occupant seated on the seat part and secured with the belt in the event of a collision in the seat.
  • a three-point safety article intended to restrain a vehicle occupant seated on the seat part and secured with the belt in the event of a collision in the seat.
  • This effect which is also referred to as "submarining” largely nullifies the restraining effect of the safety belt and can lead to serious injury to the vehicle occupant.
  • such a rigid restraint structure can also, in the event of a collision, cause the vehicle occupant to be catapulted diagonally forward and upward and with his Head hits above a front airbag of the vehicle, which can also cause serious injury.
  • DE 100 65464 A1 already discloses a vehicle seat of the type mentioned above, in which the seat comprises means for hardening the front part of the seat upholstery in the event of a collision, thereby permitting the vehicle occupant to pass underneath the belt to prevent.
  • the means comprise, for example, a so-called air belt, which is arranged under the pile and is inflated in the event of a collision, as a result of which an impairment of the seating comfort during normal operation can largely be avoided.
  • the invention has the object to improve a vehicle seat of the type mentioned in that in the event of a collision, a dive of the vehicle occupant under the seat belt can be prevented by reducing the resilience of the upholstery Beinauf ⁇ in the storage area, without the padding in this area or affect the comfort of sitting in normal operation.
  • the seat part arranged below the leg rest area of the padding rotatable Retaining element with a normal operation upwardly facing part with greater compliance and a part with lower compliance and a rotary drive for rotating the retaining member comprises, with which the part with the lower compliance at a triggering of the crash or pre-crash sensor up to turn.
  • the part with the lower compliance is turned upwards before or during a collision by the triggering of the pre-crash or crash sensors, it causes, in a manner similar to the air belt known from DE 100 65 464 A1, that the Cushioning in the leg rest area hardens and thereby a penetration of the vehicle occupant under therac ⁇ belt is prevented, but without a simultaneous lifting of the padding, which can be avoided when turning a rotatable retaining element, when its peripheral surface is substantially rotationally symmetrical.
  • the part with the lower compliance can be formed such that it plastically deforms in the event of a collision when a predetermined load is exceeded, thereby converting part of the kinetic energy of the vehicle occupant into deformation work, thus rendering it an energy absorption element. ment works.
  • the part with the lower compliance of sheet metal can be made and form a shell sector of the retaining element, which surrounds the lower half of the body in its initial position during normal operation of the vehicle and concavity is curved downward, while it is in its final position after a rotation as a result of triggering the crash or pre-crash sensor convexly bulges upward and semi-cylindrical protrudes beyond the inner surface of the seat. If the load exerted by the vehicle occupant on the metallic shell part exceeds a limit given by the material strength or molded-in weak points, such a jacket part can plastically deform under bending or pressing in.
  • the part with the However lower compliance but also include an embedded in cushioning insert part whose cross-sectional profile forms part of rotations ⁇ symmetrical cross-sectional profile of the rotatable retaining element and is rotated when triggering the crash or pre-crash sensor together with the rest of the retaining element until it is in the desired height is located above the inner surface of the seat pan.
  • the upward-pointing part in normal operation with the greater Nachgie ⁇ bigkeit expediently consists of the same or a similar foam material as that of the upholstery, so that he has the same or similar che properties and a comparable resilience, bringing the seating comfort in Beinauflage Scheme the upholstery corresponds to that of the rest of the seat part or a seat part without retaining element.
  • a preferred embodiment of the invention provides that the remindhalte ⁇ element is rotatable about a rotational axis aligned transversely to the direction of rotation, preferably so that the direction of rotation is opposite to the direction of rotation below the axis of rotation to the rotation of the part with the lower compliance during a collision to promote or support the inertial forces exerted on it by the lower body of the vehicle occupant.
  • the rotatable retaining element is formed by a cylindrical or cylindrical body whose opposite ends are mounted in pivot bearings and whose rotationally symmetrical, preferably cylindrical peripheral surface expediently at least partially with a sliding or another thin thin flexible coating is surrounded, which has a low Rei ⁇ friction coefficient in order to facilitate the rotation of the body relative to the applied against the peripheral surface padding even after a Deforma ⁇ tion of the body.
  • a reversible rotary drive is used which allows the rotatable element to follow manually or motorically to move back to its initial position, so that the part with the greater compliance again points upwards.
  • Such a reversible rotary drive can be formed, for example, by an electric motor or by a pneumatic or hydraulic drive, optionally with compressed gas storage, but is preferably formed for cost reasons by at least one spring, which in normal operation by a releasable rotation in a biased position is held and released gege ⁇ when triggering the crash or pre-crash sensor, wherein the stored spring energy supplies the drive energy required for rotation of the restraining element.
  • a combination of different drive means is also conceivable.
  • the rotation or a part thereof can also be used ver ⁇ to secure the retaining element after rotation against turning back.
  • the anti-twist device preferably comprises a Zahnrichtgesperre whose pawl blocks a connected to the body ratchet wheel in the initial position of the body to hold the spring of the rotary drive in the biased position, and engages when Verdre ⁇ hen of the body with the teeth of the ratchet wheel, to prevent the body from turning backwards.
  • the anti-twist device comprises an inertia lock, which is triggered only by strong deceleration forces and acts as an unlocking device.
  • the rotary drive of the retaining element can either be activated only in the event of a collision when the crash sensors are triggered or already before the pre-crash sensor system is triggered, which means that the seat can be adjusted to the desired position earlier. the present collision can be prepared. If there is no collision, the retaining element can be turned back to its original position manually or by means of the rotary drive.
  • FIG. 1 shows a perspective underside view of a seat part of a vehicle seat according to the invention fitted with a rotatable roller;
  • Fig. 2 is a side view of the seat part of Fig. 1;
  • Fig. 3 is a cross-sectional view of the seat portion of Figs. 1 and 2;
  • FIG. 4 shows a cross-sectional view of the seat part of another vehicle seat according to the invention with a rotated roller
  • FIG. 5 shows a side view of the seat part from FIGS. 1 and 2 with a partially rotated roller
  • FIG. 6 is a side view of the seat part of Figures 1 and 2 with fully rotated roller ..;
  • Fig. 7 is a side view of the seat portion of Figs. 1 and 2 viewed from the other side;
  • FIG. 8 shows a side view of the seat part of a further vehicle seat according to the invention.
  • FIG. 9 is a perspective underside view of the seat part of still another inventive vehicle seat.
  • the seat parts 2 shown in the drawing are in connection with her ⁇ conventional backrests and a conventional seat base (not shown) intended for installation in passenger vehicles, where they serve as front seats and are equipped with conventional automatic three-point seat belts.
  • the seat parts 2 consist essentially of a seat 4 for mounting on the seat base of the vehicle seat, atient ⁇ in the seat shell 4, provided on the top with a cloth, leather or synthetic leather cover 6 padding 8 of a foamed padding material 10, and a retaining device 12, which is arranged under a leg support region 14 of the cover 6 in the front half of the seat part 2 in the direction of travel.
  • the restraint device 12 serves to counteract in a collision of the passenger car the penetration of a belted passenger seated on the seat part 2 under the seat belt as a result of a crash or pre-crash sensor system (not represented) of the vehicle below the leg rest area 14, a threshold is formed, which prevents the vehicle occupant with his lower body due to the einwirk ⁇ the inertial forces along the seat part 2 slips forward.
  • the retaining device 12 consists essentially of a cylindrical or cylindrical body 16, which is used as a modular retention element in the seat part 2 and about a transversely extending to the direction horizontal pivot axis 18 is rotatable, a force acting on the body 16 biased spring 20, the the body 16 at its discharge a piece far to the rotation axis 18 rotates, and a releasable anti-rotation 22, which holds the body 16 until the triggering of the crash or pre-crash sensor in his illustrated in Fig. 1 and 2 starting position and him after rotation due to a triggering of the crash or pre-crash sensor system and a complete or partial relief of the spring 20 against turning back ensures.
  • the cylindrical or cylindrical body 16 in its circumferential direction on two parts 24, 26 with different compliance, of which the one 24 with the greater compliance in the initial position of the body 16 facing upwards and ensures that in the During normal operation, the initial position of the body 16 does not diminish the cushion thickness or resilience of the seat part 2, and thus its seating comfort below the leg support area 14 is not reduced in comparison with neighboring areas.
  • the other sector 26 with the lower yielding points downwards in the starting position and is turned upwards when the crash or pre-crash sensor system is triggered, where it forms the threshold in the event of a collision, causing the vehicle occupant to pass underneath the seatbelt prevented.
  • the cylindrical or cylindrical body 16 consists of a circular-cylindrical core 28 of foamed upholstery material, one part 26 forming shell 30 of sheet metal, which surrounds the core 28 at its end faces and on a part of its circumference, one of the jacket 30 and the core 28 on its entire circumference umge- Benden sliding foil 32, as well as two to opposite sides on ver ⁇ strengthened front ends of the shell projecting bearing pins 34 which are mounted in a pivot bearing (not shown) in the seat base frame.
  • the circumferential part of the jacket 30 consisting of sheet metal points downwards in the initial position of the body 16, where it projects beyond an opening in a base pan 36 of the seat pan 4 over its underside, but its two side edges 38 protrude somewhat into the interior of the seat pan 4.
  • the inner protrusion of the side edges 38 serves to prevent entanglement of the front side edge 38 in the direction of rotation on the bottom tray 36 and damage of the sliding film 32 along the open peripheral part of the jacket 30 due to external influences but so small that the compliance of the padding 8 is unaffected.
  • the padding material of the core 28 is expedient the same as that of the padding 8 of the seat part 2 or has at least the same or similar properties in terms of flexibility and elasticity and is in the initial position along the circumference of the core 28 only by the sliding film 32 from the cushioning material 10 of the surrounding Upholstery 8 separately. In this position, therefore, the entire volume of the seat shell 4 is occupied by cushioning material, which supports the body of the vehicle occupant evenly and without a greater local pressure load in the leg support area 14.
  • the body 16 is rotated in the direction of the arrow P by the spring 20 serving as a rotary drive, whereby the circumferential part consisting of sheet metal of the jacket 30 is moved upward on the rear side of the body 16 in the direction of travel until the body 16 reaches the end position shown in FIG. 6 or is previously stopped in an intermediate position, as illustrated, for example, in FIG , because the Movement resistance due to a caused by the weight of the vehicle occupant deformation of the padding 8 and the core 28 exceeds the tensile force of the spring 20.
  • the cylindrical core 28 of the cylindrical or roller-shaped body 16 made of foamed upholstery material 10 is arranged completely inside the seat pan 4, enclosing an embedded cross member 40, which is rigid with the two Outer sides with the bearing pin 34 provided front ends of the body 16 connects.
  • the cross member 40 like the peripheral part of the metal jacket 30 described in connection with FIG. In FIG. 4, however, the body 16 is shown in the final position which it assumes after being rotated as a result of a triggering of the crash or pre-crash sensor system.
  • the cross member 40 is located approximately in the middle of the padding 8 and forms there a threshold or barrier which prevents the belted vehicle occupant from passing underneath the safety belt.
  • this consists of a plastically deformable material that bends when excessive forces are exceeded, and also has rounded surfaces.
  • the pretensioned spring 20 serving as a rotary drive for the body 16 is formed by a screw spring, one end of which at the height of the rotation axis 18 is fixed behind the body 16 the outside of the bottom trough 36 is connected and the other end is fastened on the outer circumference and in the vicinity of a front end of the body 16.
  • the spring 20 wraps around the circumference of the body 16 on its underside in part, in the illustrated embodiment over an angle of about 110 degrees, as best shown in Fig. 7, and is substantially relieved in the end position of the body 16 , where they are the attachment points on the seat pan 4 and on the circumference of the body 16 connects in a straight line, as best shown in Fig. 6.
  • the spring 20 is also designed as a fferenzugfe-, but drives at its discharge a arranged between the body 16 and the spring 20 rack gear 42 whose guided in a guide (not shown), substantially horizontally aligned toothed rack 44 is meshed with a sprocket 46 at the front end of the body 16 and is connected at its rear end seen in the direction of travel with the spring 20, as well as the spring 20 of Figures 1 to 7 at a distance behind the body 16th is attached to the outside of the floor pan 36.
  • the drive spring 20 is formed by a spiral or torsion spring arranged on a stimulus end of the body 16, one end 48 of which is connected in a rotationally fixed manner to the bearing journal 34 while its other end 50 the vicinity of the body 16 is attached to the outside of the bottom pan 36 of the seat pan 4.
  • the anti-rotation device 22 comprises a cable coil 52 connected to the crash or pre-crash sensor system of the vehicle plunger coil 56 whose armature 58 forms the pawl of a Zahnrichtgesperres, the ratchet wheel 60 is attached to an end face of the body 16 and one over a part of whose circumference has running teeth 62.
  • the armature 58 is held by the force of a spring of the plunger coil in engagement with a projection 64 at the front end of the toothing 62 in the direction of rotation, where it prevents rotation of the body 16 during normal operation of the vehicle.
  • the retainer 12 can be installed as a replaceable module in seat parts 2 different seats or also allows use of the seats 2 with a rigid Traverse or ramp instead of the module.
  • the one-piece molded sheet metal or plastic base pan 36 of the seat shells 4 of the seat parts 2 shown are provided at its flat upper edge with an outwardly projecting, for fastening the seat cover 8 serving flange 64 and rise from a located near its rear edge lowest point 66 in a direction parallel to the direction of travel vertical cutting plane flat forward and steeply towards the rear, as best shown in Fig. 3 and 4.
  • 1 to 3 and 5 to 9 has an opening 68 in its front half, through which the part 26 of the body 16 made of sheet metal protrudes a little beyond the underside of the bottom trough 36 during normal operation and their boundary edges are adapted to the peripheral surface of the body 16 such that they extend over their entire length at a constant small distance from the latter.
  • the bottom trough 36 of the seat part 2 shown in FIG. 4 only needs to have a round lateral opening for the outlet of the stub shaft 34 driven by the spring 20 and may otherwise be closed.
  • the padding 8 of the seat parts 2 shown in the drawing consists of a one-piece body from the cushioning material 10, which is provided for receiving the body 16 with a recess adapted to the shape of the cavity.
  • the cavity has a cylindrical shape, while it is partially cylindrically shaped in the other seat parts 2.

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

Abstract

L'invention concerne un siège doté d'une ceinture de sécurité pour un véhicule équipé d'un système de capteurs de collision ou de pré-collision. Ce siège comprend une partie assise (2) avec capitonnage (8), dont la souplesse peut être réduite sous la zone d'appui des jambes (14) du capitonnage (8) lors du déclenchement du système de capteurs. L'invention vise, en cas de collision, à éviter que l'occupant du siège ne glisse sous la ceinture de sécurité lorsque la souplesse du capitonnage (8) est réduite dans la zone d'appui des jambes. A cet effet, la partie assise est pourvue d'un élément de retenue (16) monté pivotant sous la zone d'appui des jambes (14) du capitonnage (8), cet élément comprenant une partie (24) orientée vers le haut en fonctionnement normale et présentant une grande souplesse, et une partie (26) peu souple, un entraînement rotatif (20) pour l'élément de retenue (16) faisant pivoter vers le haut la partie (26) peu souple lors du déclenchement du système de capteurs.
PCT/EP2005/010353 2004-09-27 2005-09-24 Siege de vehicule Ceased WO2006034828A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410046723 DE102004046723A1 (de) 2004-09-27 2004-09-27 Sitz für ein Fahrzeug
DE102004046723.4 2004-09-27

Publications (1)

Publication Number Publication Date
WO2006034828A1 true WO2006034828A1 (fr) 2006-04-06

Family

ID=35160085

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2005/010353 Ceased WO2006034828A1 (fr) 2004-09-27 2005-09-24 Siege de vehicule

Country Status (2)

Country Link
DE (1) DE102004046723A1 (fr)
WO (1) WO2006034828A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12005848B2 (en) * 2022-07-04 2024-06-11 Toyoda Gosei Co., Ltd. Occupant protection device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6972880B2 (ja) 2017-10-10 2021-11-24 トヨタ自動車株式会社 車両用シート

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125472A (en) * 1989-12-25 1992-06-30 Mazda Motor Corporation Apparatus for controlling attitude of passenger
DE10065464A1 (de) * 1999-12-28 2001-08-30 Takata Corp Fahrzeuginsassenschutzeinrichtung
EP1362737A1 (fr) * 2001-02-21 2003-11-19 Daihatsu Motor Company, Ltd. Siege de voiture
WO2004007237A1 (fr) * 2002-07-10 2004-01-22 Takata Corporation Dispositif de securite pour siege de vehicule automobile

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3337260A (en) * 1964-06-03 1967-08-22 Proctor Edward Augustus Safety seats for vehicles
GB1348873A (en) * 1972-02-11 1974-03-27 Ford Motor Co Motor vehicle seat
DE19541999C2 (de) * 1995-11-10 2002-02-28 Recaro Aircraft Seating Gmbh Fahrzeugsitz, insbesondere Fluggastsitz
JP4005237B2 (ja) * 1998-09-29 2007-11-07 日本発条株式会社 車両用座席
DE10011829C2 (de) * 1999-03-15 2002-08-08 Nhk Spring Co Ltd Stellantrieb für ein Fahrzeuginsassenrückhaltesystem
GB2357030B (en) * 1999-12-09 2004-01-07 Autoliv Dev Anti-submarining seat
DE20302628U1 (de) * 2003-02-18 2003-06-26 TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf Fahrzeugsitz

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125472A (en) * 1989-12-25 1992-06-30 Mazda Motor Corporation Apparatus for controlling attitude of passenger
DE10065464A1 (de) * 1999-12-28 2001-08-30 Takata Corp Fahrzeuginsassenschutzeinrichtung
EP1362737A1 (fr) * 2001-02-21 2003-11-19 Daihatsu Motor Company, Ltd. Siege de voiture
WO2004007237A1 (fr) * 2002-07-10 2004-01-22 Takata Corporation Dispositif de securite pour siege de vehicule automobile

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12005848B2 (en) * 2022-07-04 2024-06-11 Toyoda Gosei Co., Ltd. Occupant protection device

Also Published As

Publication number Publication date
DE102004046723A1 (de) 2006-04-06

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