WO2007054347A1 - Element de support avec supports lateraux reglables - Google Patents

Element de support avec supports lateraux reglables Download PDF

Info

Publication number
WO2007054347A1
WO2007054347A1 PCT/EP2006/010821 EP2006010821W WO2007054347A1 WO 2007054347 A1 WO2007054347 A1 WO 2007054347A1 EP 2006010821 W EP2006010821 W EP 2006010821W WO 2007054347 A1 WO2007054347 A1 WO 2007054347A1
Authority
WO
WIPO (PCT)
Prior art keywords
support element
lateral
support
lateral supports
backrest
Prior art date
Application number
PCT/EP2006/010821
Other languages
English (en)
Inventor
Manuel António DE CASTRO FARIA
João Alberto VILELA BARROS
Original Assignee
Fico Cables Lda
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 Fico Cables Lda filed Critical Fico Cables Lda
Priority to CN2006800422384A priority Critical patent/CN101370689B/zh
Priority to EP06840934A priority patent/EP1945479A1/fr
Publication of WO2007054347A1 publication Critical patent/WO2007054347A1/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

Definitions

  • the present invention relates to a support element, particularly for integration into the backrest of a motor vehicle seat.
  • the support element acts for adapting the geometry and the cushioning properties of the backrest to the passenger.
  • Support elements are used in the backrests of motor vehicle seats to define the cushioning properties respectively the geometry of the backrest.
  • adjustable support elements which allow an adjustment of the curvature of the backrest in the lumbar area. Therefore the backrest can be individually adapted to the back of the passenger to improve the seat ergonomics.
  • the document EP 1 491 395 A2 for example shows a support element for the backrest of a motor vehicle seat with an integrated adjustable lumbar support.
  • the support element with integrated lumbar support in this embodiment consists of a unitary component, which supports the cushioning of the backrest.
  • the passenger of the motor vehicle is subjected to a plurality of forces during driving, which are generated by accelerating and decelerating as well as by curve driving.
  • the lateral support which the seat provides is important.
  • a good lateral support on the one hand allows high curve velocities but is also of fundamental importance to keep the spine straight during long drives.
  • conventional backrests comprise lateral flanges at the lower portion at the sides thereof, to lateral support the lower back portion.
  • Such lateral flanges are adapted to the average passenger, such that only few passengers receive an optimal lateral support.
  • Al lateral pillow-like elements of a foam material which is covered with cloth are provided for adapting the backrest, which are mounted at a lumbar support by means of hook and loop fasteners.
  • a support element particularly for the backrest of a motor vehicle seat, comprising a base part, which can be mounted at a backrest frame, and at least two lateral supports which are pivotable mounted lateral at the base part and which are adjustable to change the lateral support of the backrest.
  • the lateral support of the backrest of a motor vehicle seat can be individually ad- justed to the passenger.
  • the strength of the lateral support and on the other hand the effective width between the lateral flanges of the backrest of a motor vehicle seat can be changed. Thereby, the seat ergonomics of the motor vehicle seat is increased.
  • the lateral supports Due to the connection of the lateral supports at a base part a simple and cost- efficient possibility is provided to assemble the lateral supports as an integrated support element module into the backrest of a motor vehicle seat.
  • an integrated support element therefore, the assembly costs and the assembly time is reduced.
  • the support element can be mounted as a whole at the backrest frame by means of for example screws, rivets or mounting elements made of plastic.
  • the lateral supports are displaceable around a shaft, which is essentially arranged in longitudinal direction of the backrest.
  • the lateral supports can be pivoted to the inside and increase the strength of the lateral flanges of the backrest during pivoting. Simultaneously they shorten the free space between the lateral flanges for passengers with a more narrow back.
  • the lateral supports comprise an essentially flat, elongated shape, which is convexly rounded in direction to the passengers.
  • This flat elongated to the passengers rounded shape is adapted to the lateral lumbar area of the back of the passengers and does not provide tangible edges below the seat cushioning.
  • the lateral supports are divided in transversal direction of the backrest into three adjacently arranged portions and comprise from the inside to the outside a stiff mounting portion, a softer transition portion and a stiff end portion. Due to this division into three parts of the lateral supports those are flexible and resilient and therefore particularly comfortable for the pas- sengers but, however, sufficient in their lateral support effect. Particularly, the soft - A -
  • transition portion is resiliency provided, such that the stiff end portion is resil- iently supported at the stiff mounting portion.
  • transition portion is curved in longitudinal direction.
  • suspension properties of the lateral support are adapted to the shape of the lateral lumbar area of the passengers.
  • the rigidity of the lateral supports decreases in longitudinal direction from the centre to the top and to the bottom. Therefore, the lateral supports are suffer in the centre and therefore, the lateral support of the seat is stronger in this portion, compared to the top and bottom end of the lateral support, where they merge into the normal cushioning. Therefore, hard transitions between the area of the adjustable lateral supports and the normal cushioning area of the backrest are avoided.
  • the lateral support comprises aeration holes, which are arranged within the soft transition portion.
  • the soft transition portion is preferably provided such that it comprises aeration holes, which increase the aera- tion of the backrest and simultaneously provide the preferred soft transition portion.
  • the aeration holes increase in its extent in longitudinal direction from the centre to the top and to the bottom. In that the aeration holes increase in size mainly in longitudinal direction also there the stiffness of the transition portion is decreased.
  • the lateral supports are actuated via Bowden cables, the sheets thereof are connected to the base part and their cables are con- nected to the lateral supports. Therefore the support element provides an integrated component, which can be assembled into the backrest of a motor vehicle seat as a hole completely preassembled. Therefore, during this assembly further additional assembly steps with respect to the Bowden cables are omitted.
  • the support element further comprises a lumbar support, which is integrally formed with the base part, whose curvature in longitudinal direction can be adjusted. If the support element is further provided with a lumbar support also an integrated component results, which can be assembled as a whole into the backrest of a motor vehicle seat. Additional assembly steps for the assembly of the lumbar support are omitted.
  • the base part and/or the lateral supports can be manufactured of a plastic material, particularly of a glass fibre reinforced PA. Due to the manufacturing of a plastic material the support element is particularly lightweight but nevertheless stable and break resistant. Further, the complex shapes of base part and lateral supports, and if applicable also the integrated lumbar support, can be easily and cost efficiently manufactured for example by injection molding, deep drawing or thermo forming of the plastic material.
  • Fig. 1 a three-dimensional view of a support element according to the invention, which is mounted within a backrest frame of a motor vehicle seat;
  • Fig. 2A a three-dimensional lateral view from below of a support element according to the invention in a first position;
  • Fig. 2B the support element according to Fig. 2A in a second position of the lateral supports;
  • Fig. 3 an elongated view of one of the lateral supports
  • Fig. 4 a three-dimensional view from the back of the support element
  • Fig. 5 a partial sectional view of the support element, taken along the line
  • Figure 1 shows a support element 1, which is mounted within the backrest frame 10 of a motor vehicle seat.
  • the support element 1 is located within the lower portion of the backrest frame 10, i.e. in the area of the lumbar spine.
  • the support element 1 is preferably arranged below the cushioning (not shown) of the backrest.
  • the support element 1 comprises of a base part 20, which is laterally mounted at the backrest frame 10.
  • a base part 20 For the mounting of the base part 20 to the backrest frame 10 it is provided with lateral mounting faces 22, which abut against the lateral backrest frame 10.
  • the base part 20 comprises a concave shape which faces the back of the passenger, such that the complete backrest of the motor vehicle seat essentially is concavely formed, to provide a lateral support for the back of the passenger.
  • the mounting of the integrated support element 1 at the backrest frame 10 can be done in a simple way by means of screws, rivets, or the like, wherein particularly quick fitting elements of a plastic material like for example dowel-like quick fitting elements 26 are preferred.
  • two lateral supports 30 are pivotably mounted, which form the lateral support of the backrest.
  • the support of the lateral support 30 at the base part 20 preferably is done by means of a shaft 40, respectively, which is directed in longitudinal direction L of the backrest, as it is shown in Figs. 4 and 5.
  • the lateral supports 30 can be pivoted around the shaft 40 to the inside or to the outside. Thereby it is possible to increase the lateral support of the backrest or to decrease it, respectively, to adjust the lateral support of the backrest narrower or wider. Thereby, the lateral support 30 can be adapted to the corresponding passenger.
  • the lateral supports 30 respectively comprise of an essentially flat, longitudinal part which is convexly rounded in direction to the passenger.
  • the convex shape can particularly be seen in Figs. 2A and 2B.
  • the lateral supports 30 do not form tangible edges below the cushioning and are adapted to the lateral lumbar area of the back of the passenger.
  • Fig. 3 shows that the lateral supports 30 in transversal direction Q of the backrest comprise three adjacently arranged areas 31, 32 and 33, as indicated by the chain dotted lines.
  • the lateral supports 30 in respect to their arrangement on the support element 1 comprise an inner, stiff mounting portion 31 which is provided with mounting clips 36.
  • the lateral supports 30 are supported at the base part 20 by means of the mounting clips 36 and the shaft 40.
  • a more soft transition portion 32 Adjacent to the mounting portion 31 a more soft transition portion 32 is arranged at the lateral support 30, which comprises aeration holes 34, which are separated from each other by means of bars 35.
  • a portion 32 is provided, in which the lateral sup- ports 30 can be bent more easily. It should be noted, that in Fig. 3 only one bar 35 is indicated as an example for all the other bars 35.
  • the lateral support 30 Adjacent to the outside of the transition portion 32 the lateral support 30 comprises a stiff end portion 33.
  • This end portion 33 in assembled condition provides a front edge, which faces the back of the passengers. Therefore, this end portion 33 is likewise particularly rounded, such that it cannot be felt below the cushion- ing of the backrest, respectively does not damage the cushioning.
  • transition portion 32 Since the transition portion 32 is resilient, the end portion 33 is resiliently supported with respect to the mounting portion 31. This leads to a further increase of the comfort of the backrest and in case of an accident it increases the passenger's safety.
  • the transition portion 32 as well as also the end portion 33 is curved in longitudinal direction L in such a way that the lateral supports 30 are well adapted to the back of the passengers and particularly provide a stronger support effect in the centre M compared to the corresponding ends.
  • Figs. 2a and 2B The function of the adjustment of the lateral supports 30 is shown in Figs. 2a and 2B.
  • Fig. 2 A shows a position of the lateral supports 30 for less lateral support, respectively, for a passenger having a wide back. In this case the lateral supports 30 are pivoted such that they laterally abut the base part 20. If the passenger desires more lateral support, respectively, if the passenger has a narrower back, the lateral supports 30 can be pivoted around the shaft 40 to the inside respectively to the front, as shown in Fig. 2B. Of course, all positions of the lateral support 30 can be adjusted stepless between the position shown in Fig. 2A and the one shown in Fig. 2B.
  • the adjustment of the lateral support 30 is done by means of a Bowden cable mechanism 60, 62.
  • a sheath 67 of a Bowden cable 60 is connected at a horizontally arranged receptacle 24 of the base part 20.
  • a cable 68 of the Bowden cable 60 is appropriately connected to the lateral support 30.
  • the pivoting angle ⁇ of the lateral support 30 is dependent upon to which value d2 the cable 68 of the Bowden cable 60 is set and at which distance dl with respect to the shaft 40 it is connected at the lateral support 30.
  • the lateral supports 30 are actuated via separate Bowden cables 60 respectively which are actuated by means of a common actuation element 62.
  • the actuation element 62 is preferably mounted at the backrest frame 10.
  • the actuation element 62 is a manual actuation element, which is actuated by rotation from the passenger.
  • electric actuation elements can be used for the actuation of the Bowden cables 60.
  • the support element 1 is further provided with a lumbar support 50 whose curvature in longitudinal direction L can be adjusted. This means that the curvature of the lumbar support 50 can be convexly changed in direction of the back of the passenger.
  • the lumbar support 50 is formed integrally with the base part 20 of the support element 1, i.e. base part 20 and lumbar support 50 consist of one component. Therefore, an integrated support element module for a common assembly within the backrest frame 10 is formed, which comprises adjustable lateral supports 30 as well as an adjustable lumbar support 50.
  • the lumbar support 50 Since the lumbar support 50 is adjustable, it must be moveable with respect to the base part 20. At the top portion 52 of the lumbar support 50 is moveably connected with the base part 20 by means of a resilient strip of material. At the bottom portion 54, the lumbar support 50 only lies onto the base part 20, to be dis- placeably supported with respect to the base part 20.
  • the lumbar support 50 is likewise controlled by two Bowden cables 64, whose sheaths are connected in vertical arranged receptacles 28 at the base part 20 and whose cables are connected to the bottom part 54 of the lumbar support 50.
  • the Bowden cables 64 are actuated by the actuation element 66 which can be the same or similar to the actuation element 62 and can likewise be mounted at the backrest frame 10.
  • the support element 1 therefore unites an adjustable lumbar support 50 as well as adjustable lateral supports 30 in an integrated component.
  • the lumbar support 50 as well as also the lateral supports 30 can be commonly assembled within the backrest frame 10.
  • the base part 20 and/or the lateral supports 30 are preferably made of a plastic material, particularly of a glass fibre reinforced polyamide PA.
  • the single components can for example be produced by means of injection molding, deep drawing or thermo forming. It is conceivable to produce the base part 20 and/or the lateral supports 30 from a sheet metal by deep drawing and stamping.
  • the Bowden cables 60 and 64 comprise of a cable 68 of a steel wire as well as of a sheath 67 of a helical steel wire, which is covered by a plastic material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

La présente invention concerne un élément de support (1), en particulier pour le dossier d’un siège de véhicule à moteur, comportant une partie base (20), qui peut être montée sur une structure de dossier (10), et au moins deux supports latéraux (30) qui sont en mesure d’être pivotés et montés de manière latérale au niveau de la partie base (20) et qui sont réglables pour changer le support latéral du dossier.
PCT/EP2006/010821 2005-11-11 2006-11-10 Element de support avec supports lateraux reglables WO2007054347A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2006800422384A CN101370689B (zh) 2005-11-11 2006-11-10 带有可调节侧向支撑件的支撑元件
EP06840934A EP1945479A1 (fr) 2005-11-11 2006-11-10 Element de support avec supports lateraux reglables

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005053948.3A DE102005053948B4 (de) 2005-11-11 2005-11-11 Stützelement mit einstellbaren Seitenstützen
DE102005053948.3 2005-11-11

Publications (1)

Publication Number Publication Date
WO2007054347A1 true WO2007054347A1 (fr) 2007-05-18

Family

ID=37806912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/010821 WO2007054347A1 (fr) 2005-11-11 2006-11-10 Element de support avec supports lateraux reglables

Country Status (4)

Country Link
EP (1) EP1945479A1 (fr)
CN (1) CN101370689B (fr)
DE (1) DE102005053948B4 (fr)
WO (1) WO2007054347A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20082021A1 (it) * 2008-11-14 2010-05-15 Giovanni Merlini Dispositivo di sostegno del tronco per guidatori disabili
CN103010054B (zh) * 2011-09-28 2015-11-25 比亚迪股份有限公司 一种车辆座椅的靠背调节机构及包括该机构的座椅
DE102011114622A1 (de) * 2011-09-30 2013-04-04 Sitech Sitztechnik Gmbh Fahrzeugsitz mit aus autoreaktivenGerüststrukturen ausgebildeten Seitenwangen
DE102013013199B4 (de) * 2013-04-18 2017-11-16 Deon Group AG Elektromotorischer Möbelantrieb
DE102014008818A1 (de) * 2014-06-17 2015-12-17 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) Sitz für ein Kraftfahrzeug
CN109952192B (zh) * 2016-07-14 2021-01-22 兰帕克公司 原料供应组件和用于装填垫料转换机的方法
US20200039405A1 (en) * 2018-08-01 2020-02-06 GM Global Technology Operations LLC Vehicle passenger seat for passenger seating in a vehicle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808746A2 (fr) * 1996-05-20 1997-11-26 LEAR CORPORATION ITALIA S.p.A. Support lombaire de dossier de sièges de véhicules automobiles
EP1046539A1 (fr) * 1999-04-24 2000-10-25 Keiper GmbH & Co. Siège de véhicule, en particulier siège pour automobile
WO2002083453A1 (fr) * 2001-04-13 2002-10-24 Jean Tognet Accessoire de confort pour siege de vehicule

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1869266U (de) * 1961-01-30 1963-03-21 Erich Wegner Rueckenstuetze.
JPS5588713A (en) * 1978-12-27 1980-07-04 Tachikawa Spring Co Sheet for car in synthetic resin
IT1249658B (it) * 1991-06-11 1995-03-09 Fiat Auto Spa Elemento di sopporto dorsale per sedili, particolarmente sedili automobilistici.
DE10328044A1 (de) * 2003-06-23 2005-02-03 Fico Cables, Lda. Rückenlehnentragstruktur mit Einstellung der Druckverteilungskarte
US20050231019A1 (en) * 2004-04-15 2005-10-20 Sears Manufacturing Company Vehicle seat frame

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0808746A2 (fr) * 1996-05-20 1997-11-26 LEAR CORPORATION ITALIA S.p.A. Support lombaire de dossier de sièges de véhicules automobiles
EP1046539A1 (fr) * 1999-04-24 2000-10-25 Keiper GmbH & Co. Siège de véhicule, en particulier siège pour automobile
WO2002083453A1 (fr) * 2001-04-13 2002-10-24 Jean Tognet Accessoire de confort pour siege de vehicule

Also Published As

Publication number Publication date
DE102005053948B4 (de) 2017-01-19
CN101370689B (zh) 2011-06-01
EP1945479A1 (fr) 2008-07-23
CN101370689A (zh) 2009-02-18
DE102005053948A1 (de) 2007-05-16

Similar Documents

Publication Publication Date Title
US9873362B2 (en) Flexible seatback system
US9873360B2 (en) Flexible seatback system
US6601918B2 (en) Adjustable vehicle seat
WO2007054347A1 (fr) Element de support avec supports lateraux reglables
US20080136240A1 (en) Vehicle seat
US4781417A (en) Upholstered seat cushion support
US5697672A (en) Improvements in and relating to seat arrangements providing adjustable support
KR20000048877A (ko) 좌석 등받이 프레임
US6779844B2 (en) Arching lumbar support with weight distribution surface
AU1591697A (en) Improvements in and relating to support structures for incorporation in a seat frame
US20040160100A1 (en) Support element for upholstering on a vehicle seat
EP3245098B1 (fr) Dossier de siège et siège le comprenant
EP0563709A2 (fr) Siège muni d'un support lombaire, en particulier pour véhicles automobiles
KR101220939B1 (ko) 럼버서포트 어셈블리
JP6731816B2 (ja) シートバックフレーム
KR101220944B1 (ko) 자동차용 럼버서포트 어셈블리
JPH11206506A (ja) シートバック内部構造体およびランバサポートアジャスタ
EP0562453A1 (fr) Coussin de siège, par exemple pour sièges de véhicules automobiles
KR100781115B1 (ko) 럼버서포트 지지구조
US20170217338A1 (en) Vehicle seat strap retaining assembly
KR100534958B1 (ko) 자동차용 럼버서포트 장치
EP1479561A2 (fr) Elément de soutient d'un siège
KR100552052B1 (ko) 시트백의 럼버 서포트 장치
JP2021046181A (ja) 車両用シート
WO2003051158A1 (fr) Soutien lombaire avec surface souple de repartition du poids et plaque d'appui integree

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 200680042238.4

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application
DPE1 Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2006840934

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 1240/KOLNP/2008

Country of ref document: IN

NENP Non-entry into the national phase

Ref country code: DE

WWP Wipo information: published in national office

Ref document number: 2006840934

Country of ref document: EP