WO2003091062A1 - Dossier de siege pour vehicule - Google Patents

Dossier de siege pour vehicule Download PDF

Info

Publication number
WO2003091062A1
WO2003091062A1 PCT/JP2003/005178 JP0305178W WO03091062A1 WO 2003091062 A1 WO2003091062 A1 WO 2003091062A1 JP 0305178 W JP0305178 W JP 0305178W WO 03091062 A1 WO03091062 A1 WO 03091062A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat back
support member
headrest support
cross member
upper cross
Prior art date
Application number
PCT/JP2003/005178
Other languages
English (en)
Japanese (ja)
Inventor
Naoto Komiya
Yoshio Watanabe
Original Assignee
Johnson Controls Automotive Systems Corporation
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 Johnson Controls Automotive Systems Corporation filed Critical Johnson Controls Automotive Systems Corporation
Priority to AU2003235102A priority Critical patent/AU2003235102A1/en
Publication of WO2003091062A1 publication Critical patent/WO2003091062A1/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
    • B60N2/68—Seat frames
    • 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
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/809—Head-rests movable or adjustable vertically slidable
    • 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
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/838—Tiltable
    • 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
    • B60N2/80—Head-rests
    • B60N2/888—Head-rests with arrangements for protecting against abnormal g-forces, e.g. by displacement of the head-rest

Definitions

  • the present invention relates to a vehicle seatback, and more particularly to a vehicle seatback provided with an active headrest that protects an occupant's cervical vertebra when a host vehicle crashes.
  • an impact load primary collision load
  • a recoil load secondary collision load
  • Japanese Patent Application Laid-Open No. H10-1019619 discloses a headrest support member (horizontal frame) rotatably supported at an upper end of a side frame of a seatback, a headrest support member extending downward from the headrest support member, and a rear impact.
  • a seat back provided with a pressure receiving member that rotates the headrest forward by receiving a recoil load by an occupant at the time is disclosed.
  • the headless support member supported by the upper end of the side frame needs to have at least the full width corresponding to the distance between both side frames, so there is a limit in reducing the size and weight.
  • the present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle seatback capable of reducing the size and weight of a headrest support member.
  • one embodiment of the present invention provides a side frame on both sides and the side frame.
  • a seatback frame having at least an upper cross member provided between the upper ends of the side frames; a hinge bracket protruding from the upper cross member; and a headrest support rotatably supported by the hinge bracket.
  • FIG. 1 is a longitudinal sectional view showing a vehicle seat back according to an embodiment of the present invention.
  • FIG. 2 is a perspective view of the vehicle seat back.
  • FIG. 3 is an exploded perspective view of the vehicle seat back.
  • FIG. 4 is a front view of the vehicle seat back. BEST MODE FOR CARRYING OUT THE INVENTION
  • FR, RR, UP, and LWR indicate the front, rear, upper, and lower sides of the vehicle, respectively.
  • the vehicle seat back 1 includes a seat back frame 5 and a cushion member (not shown) covering the periphery thereof. Above the seat back 1, a headrest 3 is provided.
  • the seat back frame 5 includes a pair of iron-plated side frames 9 disposed substantially parallel to both ends in the width direction of the seat back 1, and a reinforcing member 13 of an iron pallet provided between the side frames 9. It has.
  • the lower cross member 11 extends linearly in the width direction of the seat back 1. Both ends of the lower cross member 11 are welded to inner surfaces of lower ends of both side frames 9, respectively.
  • the reinforcing member 13 extends substantially parallel to the lower cross member 11 behind and above the lower cross member 11. Both ends of the reinforcing member 13 are connected to lower rear edges of both side frames 9, respectively.
  • the upper cross member 15 includes a horizontal portion 15c that extends linearly substantially in parallel with the lower cross member 11, and a curved portion 15 that is gently bent downward from both ends of the horizontal portion 15c.
  • a pair of vertically-facing portions 15a extending downward from the curved portion 15b along the upper end of the side frame 9 and welded to the inner surface of the upper end, and have a generally inverted U-shape as a whole. It is formed in.
  • a steel plate headrest support member 23 for supporting the headrest 3 is rotatable via a stepped port 19 and a bush 21.
  • a pair of hinge brackets 17 made of iron plate are fixed by welding. Each hinge bracket 17 extends obliquely forward and upward from the horizontal portion 15 c to position the rotation axis of the headrest support member 23 forward and above the horizontal portion 15 c of the upper cross member 15. .
  • the headrest support member 23 includes a rear surface 23a, an upper surface 23b and a lower surface 23c extending from the upper and lower ends of the rear surface 23a to the front FR, respectively, and a rear surface.
  • a pair of side portions 23 d extending from both ends in the width direction of the seat back 23 a to the front FR and rotatably supported by hinge hinges 17 are provided.
  • the upper part 23 b and the lower part 23 c are provided with a pair of fixing holes 23 e and 23 f, respectively, and a stay holder 25 supporting the stay 4 of the head rest 3 so as to be adjustable to a predetermined height. Is fixed.
  • the stay holder 25 has a cylindrical hollow member 25 a into which the stay 4 is inserted, and a locking member which is attached to an upper end opening of the hollow member 25 a and locks the stay 4 to be vertically movable. 2 5b and
  • a pressure receiving member 27 made of a flat pipe for receiving a secondary collision load caused by a rear-end collision of the vehicle is fixed by welding to a center portion of the headrest support member 23 in the width direction of the seat back 1.
  • the pressure receiving member 27 extends downward from the headrest support member 23, and The horizontal part of the member 15 is hung in front of 15c.
  • the headrest support member 23 rotates forward and the headrest 3 moves forward, but the rotation axis of the headrest support member 23 is
  • the rear surface of the pressure receiving member 27 is positioned above the horizontal portion 15 c of the loss member 15. 5
  • a resin cover 29 having a wing 29a constituting a pressure receiving surface for receiving a secondary collision load is mounted on the front surface.
  • the lower end of the pressure receiving member 27 is always urged forward by a return spring 33 for active headrest provided between both side frames 9. Both ends of the return spring 33 are respectively engaged with clips 31 provided on both side frames 9, and a center portion of the return spring 33 is provided on a rear surface of the cover 29. Locked to the stop 29b.
  • an S-shaped spring 37 for riding comfort is provided between the two side frames 9 below the return spring 33. Both ends of the S-shaped spring 37 are locked by clips 35 provided on both side frames 9, respectively.
  • the return spring 33 has a relatively large spring constant, and does not extend under a normal occupant's seating load, but can be extended only by a secondary collision load accompanying a rear-end collision.
  • the S-shaped spring 37 ' has a smaller spring constant than the return spring 33, and is capable of bending under a normal seating load.
  • the headrest support member 23 has a stop portion 39 that extends downward from the rear surface portion 23a and faces the rear surface of the horizontal portion 15c of the upper cross member 15. Since the horn portion 39 is positioned below the rotation axis of the headrest support member 23, it moves substantially in the front-rear direction with the rotation of the headrest support member 23. When the lower end of the pressure receiving member 27 moves forward due to the urging force of the return spring 33, the headrest support member 23 rotates backward, but the headrest support member 23 moves to the rear rotation limit position. When it reaches, the stopper portion 39 abuts on the rear surface of the horizontal portion 15c of the upper cross member 15 to limit the rotation of the headless support member 23. A cushioning member 41 made of rubber is mounted on the front surface of the stopper 39, and is interposed between the stopper 39 and the upper cross member 15 to prevent metal contact therebetween.
  • the occupant When the occupant is seated on an unillustrated seat cushion and is operated without leaning the back on the seat back 1, the occupant may be placed between the occupant's head and the headrest 3 and between the occupant's back and the pressure receiving member 27. There is a gap between them. Even if the occupant relaxes and leans against the seat back 1, the load applied from the occupant's back will not be affected by deformation of the cushion member (not shown) or the skin member, etc., interposed between the occupant's back and the pressure receiving member 27. Therefore, it is softly received and does not transmit to the pressure receiving member 27.
  • the seatback 1 receives the primary collision load and then receives the secondary collision load due to the relative movement of the seated occupant to the rear RR.
  • the cover 29 at the lower end of the pressure receiving member 27 is pushed by the back of the occupant via the cushion member, and the pressure receiving member 27 moves rearward RR while extending the return spring 33.
  • the headrest support member 23 rotates forward around the rotation axis including the stepped bolt 19 and the bush 21, and the headrest 3 supported by the headrest support member 23 is rotated forward, that is, toward the occupant's head. Proximity movement restricts the backward movement of the occupant's head. In this way, the head of the occupant is prevented from swinging largely rearward due to a rear-end collision, and the neck of the occupant is protected.
  • the seatback 1 is provided with the active headrest 3 to protect the occupant's neck.
  • the pair of hinge brackets 17 protruding from the horizontal portion 15c of the upper cross member 15 are formed.
  • the headrest support member 23 is rotatably supported by the headrest support member 23, so that the entire width of the headrest support member 23 can be set to a short length regardless of the distance between the side frames 9. That is, the size and weight of the headrest support member 23 can be reduced, and the degree of freedom in designing the upper portion of the seat back 1 can be increased.
  • the side part 23 d of the headrest support member 23 is arranged to face the outside of the hinge bracket 17, but may be arranged inside these.
  • the hinge bracket 17 since the hinge bracket 17 is extended upward, the upper cross member 15 can be set lower, and the degree of freedom in designing the upper portion of the seat back 1 is further increased.
  • the stopper portion 39 provided on the headrest support member 23 is configured to abut the rear surface of the upper cross member 15 at the rearward rotation limit position of the headrest support member 23. Therefore, the headrest support member 23 can be supported at the rearward rotation limit position with sufficient strength.
  • the upper cross member 15 is formed of a pipe member, it has higher rigidity than an upper cross member formed of a panel material. Therefore, the rigidity of the entire seat back frame 5 is improved. In addition, since the upper cross member 15 is prevented from being deformed even under a large collision load, there is no problem that the front rotation range of the headrest support member 23 supported by the upper cross member 15 changes. .
  • the upper cross member 15 is formed in a substantially inverted U-shape as a whole, and has a vertical portion 15a provided along the upper end of the side frame 9 at an end thereof.
  • the headrest can be appropriately positioned so as to be positioned at the head of an occupant having a different physical size.
  • the height of 3 can be adjusted, and the occupant's neck can be more reliably protected during a rear-end collision.
  • the return spring 33 is made of a metal wire including a coil portion.
  • other forms such as a coil spring, an S-shaped spring, and a torsion bar may be used.
  • other components can be appropriately changed without departing from the technical idea of the present invention.
  • a pair of hinge brackets project from the upper cross member provided between the side frames of the seat back frame, and the active headrest support member is rotatably mounted on the pair of hinge brackets. I supported it.
  • the hinge bracket since the position of the hinge bracket can be freely set on the upper cross member, the overall width of the headrest support member can be shortened irrespective of the distance between the side frames, and the headrest support member can be shortened. Can be reduced in size and weight.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

Cette invention se rapporte à un dossier de siège pour véhicule, qui comprend une structure de dossier de siège (5) comportant au moins deux structures latérales (9) sur deux parties latérales (9) et un élément transversale supérieure (15) traversant les parties terminales supérieures des structures latérales (9), un étrier à charnière (17) monté saillant par rapport à l'élément transversale supérieur (15), un élément de support de repose-tête (23) monté pivotant sur l'étrier à charnière (17), un repose-tête (3) soutenu par l'élément de support de repose-tête (23), et un élément amortisseur de pression (27) monté saillant par rapport à l'élément de support de repose-tête (23) et recevant la force d'impact produite par un impact.
PCT/JP2003/005178 2002-04-24 2003-04-23 Dossier de siege pour vehicule WO2003091062A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003235102A AU2003235102A1 (en) 2002-04-24 2003-04-23 Seat back for vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002122688A JP2003312338A (ja) 2002-04-24 2002-04-24 車両用シートバック
JP2002-122688 2002-04-24

Publications (1)

Publication Number Publication Date
WO2003091062A1 true WO2003091062A1 (fr) 2003-11-06

Family

ID=29267460

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/005178 WO2003091062A1 (fr) 2002-04-24 2003-04-23 Dossier de siege pour vehicule

Country Status (3)

Country Link
JP (1) JP2003312338A (fr)
AU (1) AU2003235102A1 (fr)
WO (1) WO2003091062A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2896198A1 (fr) * 2006-01-16 2007-07-20 Tachi S Co Dispositif de protection des cervicales de l'occupant d'un siege, notamment de vehicule automobile

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050115108A (ko) * 2004-06-03 2005-12-07 현대자동차주식회사 차량 시트의 안전장치
JP4521769B2 (ja) * 2005-05-02 2010-08-11 日本テクニカ株式会社 ヘッドレスト装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1055553A2 (fr) * 1999-05-27 2000-11-29 ISE Innomotive Systems Europe GmbH Appui-tête actif pour sièges de véhicules automobiles

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1055553A2 (fr) * 1999-05-27 2000-11-29 ISE Innomotive Systems Europe GmbH Appui-tête actif pour sièges de véhicules automobiles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2896198A1 (fr) * 2006-01-16 2007-07-20 Tachi S Co Dispositif de protection des cervicales de l'occupant d'un siege, notamment de vehicule automobile

Also Published As

Publication number Publication date
JP2003312338A (ja) 2003-11-06
AU2003235102A1 (en) 2003-11-10

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